Abstract:
A fan type chemical dispersion equipment, wherein a chemical container ( 3 ) and a power supply storage body ( 2   a ) are disposed detachably from an equipment body ( 1 ) and so as not to be volumetrically limited with each other, whereby, because the equipment body, chemical container, and power supply storage body can be volumetrically formed independently of each other, the settings of a chemical holding amount relative to a fan air blow amount and long or short service time can be performed easily, the chemical container being capable of preventing a chemical impregnated body from being caught between the end face of a chemical container body ( 3   a ) and a cover body ( 3   b ), and a clip device being capable of firmly fixing the fan type chemical dispersion equipment to the held materials ranging from thin to thick ones.

Description:
This application is a U.S. National Phase of International Application No. PCT/JP01/08261 filed on Sep. 21, 2001. 
     BACKGROUND OF THE INVENTION 
     1. Technical Field 
     The present invention relates to a fan type chemical diffusing apparatus for volatilizing and diffusing a chemical in an airflow produced by a motor driven fan or blower, and a receptacle for the chemical for use with such a fan type chemical diffusing apparatus, as well as a clip type fastening device for fastening a fan type chemical diffusing apparatus to an object such as apparel of its user. 
     2. Description of the Prior Art and Objects of the Invention 
     A fan type chemical diffusing apparatus designed to volatilize and diffuse a chemical in an airflow produced by a motor driven fan has been known as described in JP S53-14329 A. 
     The apparatus described in that patent literature comprises a cylindrical housing that constitutes an apparatus main body equipped with a motor and fan, in which a cartridge is interchangeably loaded. That contains a battery and a chemical retainer which holds a chemical therein. The fan is driven by the motor to produce an airflow with which the chemical in the cartridge is allowed to volatilize and diffuse into the atmosphere. At the end point of the chemical at which it has been fully consumed, the cartridge including the battery is disposed of and the apparatus is reused on loading with a new cartridge. 
     In the conventional apparatus mentioned above, however, in which a cartridge is designed to be accommodated in the cylindrical housing of a given and limited size, the cartridge must be limited in size by the size of the cylindrical housing, and so must naturally be limited the battery in the number of battery cells and the chemical retainer (chemical accommodating receptacle) in size, too. The known apparatus has therefore been deficient for services of an extended time period and unsatisfactory if an increase in efficacy is sought. 
     Also in the known apparatus, the power supply is disposed in a place where the airflow produced by the fan comes into contact with it. This battery arrangement thus creating a resistance to the blowing airflow has had the inconvenience that it makes the chemical volatilized, and diffused inefficiently. 
     It is accordingly a first object of the present invention with the above taken into account to provide a fan type chemical diffusing apparatus that comprises an apparatus main body, a chemical receptacle and an power supply housing which are made independent in volume (size) from one another to permit their respective variations in volume to be prepared based on its single basic design and selectively combined one with another, thereby making it possible to easily produce variations of the fan type chemical volatilizing and diffusing apparatus of the common design that vary in the amount of the chemical contained and the length of the time period with respect to the airflow amount by the fan for each service cycle while solving the abovementioned problems met in the prior art. 
     Also, the conventional chemical receptacle includes a receptacle main body having a cylindrical wall whose one end is closed with an end wall formed with a large number of vent holes and a cap body having a cylindrical wall whose one end is closed with an end wall formed with a large number of vent holes. The receptacle main and cap bodies are brought together to form the chemical receptacle by fitting the cylindrical wall of the cap body over an outer surface of the cylindrical wall of the receptacle main body and thereby the outer end surface of the cylindrical wall of the main body is against the inner surface of the end wall of the cap body. 
     Such a conventional chemical receptacle has the problem that when the receptacle main body is loaded from its open top with a chemical impregnated body such as a mass of beads impregnated with a chemical so they rise slightly above its brim and then the cap body is fitted over the main body, a faction of the chemical impregnated particles tends to be pinched between the outer end surface of the cylindrical wall of the main body and the inner surface of the end wall of the cap body, which prevents the cap body from tightly fitting with the receptacle main body. 
     Also, since the pinched chemical impregnated particles are not exposed to the airflow passing through the chemical receptacle, the chemical impregnated into these particles is hindered from volatilization and thus becomes useless. 
     Also, having axially opposite portions not identical in form, the conventional chemical receptacle when slide-fitted to the chemical receptacle retaining portion of the power supply housing can be fitted only from one side and cannot be fitted from the other side; hence hard to assemble. 
     It is therefore a second object of the present invention with the above taken into account to provide a chemical receptacle for a fan type chemical volatilizing and diffusing apparatus in which the chemical impregnated particles are kept from getting into an interstice between the receptacle main body and the cap body, and has its axially opposite portions made identical in the shape which either can be fitted to the chemical receptacle retaining portion, thereby facilitating its assembling. 
     Also, the conventional fan type chemical diffusing apparatus is commonly provided on its outer wall with a clip type fastener formed of an elastically deformable, tongue leaf like clip. This clip has its root portion attached and united to a support mount formed on the outer wall side of the apparatus main body in an insertion assembling method or the like. As its shape is viewed from its side, this clip has an area near its root portion that is the most spaced from the outer wall of the apparatus main body, an intermediate portion extending from that area towards its end portion and the most approaching the outer wall to provide a pressure foot portion for the clip, and the end portion where it leaps away from the outer wall, describing a circular arc. And, fitting the clip onto such an object as the hem of a pocket of the upper wear or the waist belt causes the object to be inserted and caught between the clip&#39;s pressure foot portion and the outer wall of the fan type chemical diffusing apparatus, and thereby this portable apparatus to be fastened and suspended. 
     By the way, with a conventional clip type fastening device as described above, the inconvenience has so far been met that the apparatus fastened tends to slip off the object to fall down while the user is at work. This has been found to be by reason of the fact that the surface of the wall to which the clip&#39;s pressure foot portion opposes is flat. Then, the force of the clip which effectively exerts to grip the object acts only on the space between the clip&#39;s pressure foot portion and the outer wall and, even if the gap between them is assumed to be zero, the force is limited only on the area lying between them. Then, if the object caught between them is so thin as the hem of a pocket, the force to grip it would be too weak to firmly fasten the apparatus of some weight to such an object from which it is suspended. 
     On the other hand, a thick wear or a waist belt as the object gripped which gives greater deformation to the clip provides greater force to grip therefor without the above inconvenience but, if the object is of a slippy material, the flatness of the surface of the outer wall as its counterpart inconveniently tends to cause the object to slip off the clip and the apparatus here again tends to slip off the object to fall. 
     While it is possible to increase the force to grip by the pressure foot portion by incorporating the clip into the support mount on the apparatus main body so that the pressure foot portion is held in elastic contact with the outerwall surface under a given pressure, this measure inconveniently not only complicates assembling the clip with the apparatus main body but also poses a problem of strength on the clip by the fact that a large force constantly is left to act on its root portion. 
     It is therefore a third object of the present invention to eliminate these inconvenience met in the prior art, and to provide a clip type fastening device that can be fastened to an object, regardless of whether it is thin or thick while holding the object caught thereby. 
     BRIEF SUMMARY OF THE INVENTION 
     In order to achieve the first object mentioned above, there is provided in accordance with the present invention in one aspect thereof a fan type chemical diffusing apparatus, characterized in that it comprises: an apparatus main body including a fan for producing an airflow, a motor for driving the fan and an airflow orifice through which the airflow produced by the fan passes; a chemical receptacle for accommodating a chemical impregnated body therein that is impregnated with a chemical, the chemical receptacle having vent holes; and a power supply housing for receiving a power supply therein, the power supply powering the motor, wherein the chemical receptacle and the power supply housing are adapted to be detachably loaded in the said apparatus main body and when loaded are each positioned therein so as to receive essentially no limitation in volume from the other. 
     This feature of the invention permits an apparatus main body, a power supply housing and a chemical receptacle which are independent of each other in volume (size) to be adopted. Variations different in volume of the apparatus main body, the power supply housing and the chemical receptacles may be prepared and selectively used or combined to enable variations different in size of the fan and motor (blower) to be adopted and various settings such as changes in the amount of a chemical and adjustments of the time period for services of the apparatus to be easily accomplished depending on particular places in which the apparatus is used. The above feature also permits the chemical receptacle alone to be exchanged when the chemical therein has been depleted. 
     According to one specific feature of the present invention in this aspect, the fan type chemical diffusing apparatus described above is characterized in that it further comprises a chemical receptacle retainer for holding the said chemical receptacle therewith and a cartridge made of the chemical receptacle retainer and the power supply housing made integral with each other, the cartridge being adapted to be disengageably inserted into and engaged with, and thereby loaded in, the apparatus main body. 
     This specific feature of the invention permits a cartridge made of the chemical receptacle retainer and the power supply housing made unitary to be detachably loaded into the apparatus main body. Therefore, when a battery used for the power supply has been exhausted and/or when the chemical has been depleted, exchanging the cartridge as a whole alone for the apparatus main body renders the apparatus reusable immediately, conveniently. 
     According to another specific feature of the present invention in this aspect, the fan type chemical diffusing apparatus described above is characterized in that it further comprises a chemical receptacle retainer for holding the chemical receptacle therewith, the chemical receptacle retainer and the power supply housing being adapted to be disengageably inserted into and engaged with, and thereby loaded, in the apparatus main body separately from each other. 
     This specific feature of the invention permits the chemical receptacle retainer to be detachably loaded into the apparatus main body and the power supply housing to be detachably loaded into the apparatus main body as well. Therefore, when a battery used for the power supply has been exhausted and/or when the chemical has been depleted, merely exchanging the chemical receptacle retainer and/or the power supply housing for the apparatus main body renders the apparatus reusable immediately, conveniently. Also, for example, if the power supply is of a commercial electric power, it becomes possible to exchange the chemical receptacle alone upon unloading the chemical receptacle retainer alone from the apparatus main body. 
     According to another specific feature of the present invention in this aspect, the fan type chemical diffusing apparatus described above is characterized in that the chemical receptacle is made integral with the chemical receptacle retainer. 
     This specific feature of the invention provides economical advantages for the process of forming or molding them. Also, the time and labor that need to be expended to load the chemical receptacle into the chemical receptacle retainer can advantageously be saved. 
     According to another specific feature of the present invention in this aspect, the fan type chemical diffusing apparatus described above is characterized in that the said apparatus main body further includes a switch for turning on and off current conduction to the said motor, and a pilot lamp for indicating or ascertaining this current conduction. 
     This specific feature of the invention of providing a switch and a pilot lamp on the side of the apparatus main body prevents disposal of the cartridge from causing disposal of the switch and pilot lamp together with the cartridge, resulting in no waste. 
     According to another specific feature of the present invention in this aspect, the fan type chemical diffusing apparatus described above is characterized in that the apparatus main body further includes an electric connector which when the power supply housing is loaded into the apparatus main body is brought into contact with the power supply received in the power supply housing to establish electric connection between the power supply and the switch. 
     This specific feature of the invention prevents the mistaken use or misuse because it is ensured that turning ON the switch on the apparatus main body by itself does not drive the fan. 
     According to another specific feature of the present invention in this aspect, the fan type chemical diffusing apparatus described above is characterized in that the airflow opening is disposed in a side face of the apparatus main body. 
     This specific feature of the invention permits the apparatus when used hung on a strap, suspended from the shoulder or fastened on the waist belt to produce an chemical entrained airflow that runs out of its side face sideways and to stream as it wraps the user&#39;s body, thereby enhancing the chemical&#39;s efficacy to around the body. 
     According to another specific feature of the present invention in this aspect, the fan type chemical diffusing apparatus described above is characterized in that the apparatus main body further includes an unloading means for releasing the insertion engagement of said power supply housing and/or the chemical receptacle retainer with the apparatus main body. 
     This specific feature of the invention prevents the cartridge from detaching from the apparatus main body unless the unloading means is acted on to release its insertion engagement. It prevents the cartridge in the apparatus used, for example, as suspended from the shoulder of the user in a fieldwork from going astray. Also, providing an unloading or engagement release button on the side of the apparatus main body allows the unloading means to be repetitively used if the cartridge is discarded. 
     According to another specific feature of the present invention in this aspect, the fan type chemical diffusing apparatus described above is characterized in that the apparatus further comprises a member attached to a rear surface of the apparatus main body for having the apparatus main body suspended from, or fixed fast to, another body or object. 
     This specific feature of the invention permits the apparatus to be used as hung on a strap, suspended from the shoulder or fastened on the waist belt. It also permits the apparatus if used as fixed fast to another object or article to be freed from a risk of tumbling or the like. 
     According to another specific feature of the present invention in this aspect, the fan type chemical diffusing apparatus described above is characterized in that the power supply housing is provided with a power supply accommodating section that is so positioned as not to be contacted by the fan produced airflow passing through the chemical receptacle. 
     This specific feature of the invention prevents a battery as the power supply from being exposed to contamination such as corrosion by a chemical entrained airflow. 
     According to another specific feature of the present invention in this aspect, the fan type chemical diffusing apparatus described above is characterized in that the power supply is constituted by a battery. 
     This specific feature of the present invention of making use of a battery for the power supply enables the power supply housing to be exchanged as a cartridge and also allows the apparatus to be made portable and to be serviced in a place such as a field where no commercial power supply is available. 
     According to another specific feature of the present invention in this aspect, the fan type chemical diffusing apparatus described above is characterized in that the battery when accommodated in the power supply housing is partially exposed to its outside. 
     This specific feature of the invention enables the presence of a battery as the power supply to be easily ascertained. 
     According to another specific feature of the present invention in this aspect, the fan type chemical diffusing apparatus described above is characterized in that the power supply housing is adapted to accommodate a battery case therein for the battery, the battery case being receivable as a drawer in the power supply housing. 
     This specific feature of the invention facilitates loading and unloading a battery as the power supply and makes it easy to maintain and exchange the power supply. 
     According to another specific feature of the present invention in this aspect, the fan type chemical diffusing apparatus described above is characterized in that the power supply housing is adapted to accommodate a battery case therein for the battery, the battery case has a cut-out formed therein for permitting an electric connector disposed in the apparatus main body to contact a battery terminal in the battery case. 
     This specific feature of the invention allows the electrical connection that is needed for the operation of the apparatus to be completed simply by merely loading the apparatus main body with a cartridge. 
     According to another specific feature of the present invention in this aspect, the fan type chemical diffusing apparatus described above is characterized in that the battery has an exhaustion point that is made coincident with an end point in depletion of the chemical. 
     This specific feature of the invention permits the chemical in the chemical receptacle to have been used up when the battery is used up bringing the fan to a halt. Then, both can be exchanged at the same time, thereby facilitating maintenance of the apparatus. 
     According to another specific feature of the present invention in this aspect, the fan type chemical diffusing apparatus described above is characterized in that the power supply housing and/or the chemical receptacle retainer are/is adapted to be loaded into the apparatus main body by sliding the former into the latter for engagement therewith by means of a slide system. 
     According to another specific feature of the present invention in this aspect, the fan type chemical diffusing apparatus described above is characterized in that the slide system whereby the power supply housing and/or the chemical receptacle retainer are/is slid into the apparatus main body for engagement therewith includes: a pair of slide engagement members provided at opposite sides of the power supply housing and/or the chemical receptacle retainer along a direction in which the power supply housing and/or the chemical receptacle retainer are/is slid into the apparatus main body; and a pair of their counterparts provided at opposite sides of the apparatus main body along the direction. 
     These specific features of the invention facilitate loading the apparatus main body with the power supply housing. 
     According to another specific feature of the present invention in this aspect, the fan type chemical diffusing apparatus described above is characterized in that the pilot lamp provided in the apparatus main body is constituted with a light emitting diode. 
     This specific feature of the invention of using a light emitting diode for the pilot lamp saves energy consumption for the power supply (battery). 
     According to another specific feature of the present invention in this aspect, the fan type chemical diffusing apparatus described above is characterized in that the chemical receptacle is adapted to be detachably loaded into the chemical receptacle retainer from its outside. 
     This specific feature of the invention of enabling the chemical receptacle to be detachably inserted into the chemical receptacle retainer from its outside facilitates exchanging the chemical receptacle with respect to the apparatus. 
     According to another specific feature of the present invention in this aspect, the fan type chemical diffusing apparatus described above is characterized in that it further comprises hood means for covering, respectively, an airflow opening formed in the apparatus main body, and vent holes formed in the chemical receptacle retainer and open to its outside or an exposed region of the chemical receptacle when held by the chemical receptacle retainer. 
     This specific feature of the invention prevents rainwater from getting in the outer airflow opening or a region of the chemical receptacle that projects from the apparatus. 
     According to another specific feature of the present invention in this aspect, the fan type chemical diffusing apparatus described above is characterized in that the said fan is adapted to send the airflow towards the chemical receptacle, and a heater means is disposed between the chemical receptacle and the fan. 
     This specific feature of the invention of enabling the airflow passing through the chemical receptacle to be warmed makes it possible to volatilize the chemical well from a chemical impregnated body in the chemical receptacle. 
     According to another specific feature of the present invention in this aspect, the fan type chemical diffusing apparatus described above is characterized in that the chemical receptacle is constituted by a first chemical receptacle adapted to be so held by the chemical receptacle retainer that its one end face lies outside of the chemical receptacle retainer, the apparatus further comprising a coupling means for coupling a second chemical receptacle to that end face of the first chemical receptacle. 
     According to another specific feature of the present invention in this aspect, the fan type chemical diffusing apparatus described above is characterized in that the chemical receptacle has its volume variable. 
     These specific features of the invention of enabling the chemical receptacle that is loaded in the apparatus to be varied in capacity makes it possible to change the apparatus&#39;s serviceable time period or to provide variations of the apparatus varied in serviceable time period. 
     According to another specific feature of the present invention in this aspect, the fan type chemical diffusing apparatus described above is characterized in that the chemical receptacle is fitted on one end face thereof with a shutter for controlling the rate of flow of air passing through the chemical receptacle. 
     This specific feature of the invention of enabling the rate of airflow through the chemical receptacle to be controlled permits the rate of diffusion of the chemical therefrom to be changed. 
     According to another specific feature of the present invention in this aspect, the fan type chemical diffusing apparatus described above is characterized in that it further comprises a timer incorporated in the said apparatus main body for establishing a time period of operation of the said motor. 
     This specific feature of the present invention of enabling a timer to be installed and preset eliminates the need to turn ON and OFF the switch, and permits the user to preset the time period as it likes, to prevent the user from forgetting to switch off, resulting in no waste. 
     In order to achieve the aforementioned second object, there is also provided in accordance with the present invention in a second aspect thereof a chemical receptacle for use with a fan type chemical diffusing apparatus for diffusing a chemical in a chemical impregnated body accommodated in the chemical receptacle by means of an airflow produced by a fan, characterized in that it comprises: a cylindrical receptacle main body having its cylindrical wall closed with its one end wall formed with a large number of vent holes; and a cylindrical lid body having its cylindrical wall closed with its one end wall formed with a large number of vent holes, wherein the cylindrical wall of the said lid body is adapted to be fitted into and with an inner surface of the cylindrical wall of the receptacle main body. 
     This specific feature of the invention that enables the cylindrical wall of the lid body when loaded into the receptacle main body to be fitted into the inside of the cylindrical wall of the receptacle main body, causes the chemical impregnated particles which are located in contact with the inner surface of the cylindrical wall in the receptacle main body to be forced aside into the interior of the receptacle main body by the cylindrical wall of the lid member. As a result, there is produced no pinch of these particles between an end face of the receptacle main body and an end wall of the lid body. 
     According to a specific feature in this second aspect of the present invention, the chemical receptacle described above is characterized in that it has its axially opposite side portions identical in the shape. 
     This specific feature of the invention that makes the chemical receptacle have its axially opposite side portions identical in the shape enables the chemical receptacle to be loaded into the chemical receptacle retaining section from either side and facilitates its assembling. Also, the lid body fitted into the receptacle main body has no external projection. Providing no hook for fingers, therefore, the lid body is made hard to be removed from the receptacle main body by, e.g., an infant, and makes the chemical receptacle highly safe without the risk that the chemical impregnated body therein is touched. 
     In order to achieve the aforementioned third object, there is also provided in accordance with the present invention in a third aspect thereof a clip type fastening device for a fan type chemical diffusing apparatus, including a clip member in the form of a tongue attached to an outer wall of the fan type chemical diffusing apparatus wherein the clip having a pressure foot portion is adapted to be so hung on an object such as an apparel of the user that the object is inserted and gripped between the external wall of the fan type chemical diffusing apparatus and the pressure foot portion, thereby fastening the fan type chemical diffusing apparatus to the object, characterized in that the clip member comprises a plurality of clip pressure foot portions disposed mutually spaced apart in a direction perpendicular to that in which the object is inserted as aforesaid; and one or more raised portions so formed on the said outer wall as to come into between adjacent such pressure foot portions. 
     This feature in the third aspect of the invention enables an object such as the hem of an apparel&#39;s pocket when the clip member is hooked thereon to be gripped in a wavy form between the clip&#39;s pressure foot portions and the raised portion or portions from the outer wall of this portable apparatus interposed between these pressure foot portions. Therefore, the portable apparatus comes to be firmly fastened to the object even if it is a thin cloth. If the object is a thick cloth, deformation of the clip member in proportion to its thickness here makes its gripping force still larger. 
     Given the ability in this way to fix the clip member fast to the object such as a cloth, the fastening device according to this feature of the invention eliminates the need to bring any pressure foot preliminarily into pressure contact against the outer wall of the apparatus main body and to hold it pressured contacted therewith. Since the clip can be attached in its natural state, its assembling is made easier. 
     If the object to be caught is a solid such as a belt, then the object can be caught without any trouble by inserting the same into the clip member beyond its pressure foot portion full to its root portion. The object is led to enter up to the space defined with the raised portion or portions, thereby holding the apparatus fastened thereto without coming off. 
     According to a specific feature in the third aspect of the present invention, the fastening device described above is characterized in that at least of one of an inner surface area of the pressure foot portion of the clip member, a surface area of the outer wall that opposes the inner surface area of the pressure foot portion and a surface area of a raised portion is made uneven to provide a slip resistance for the object. 
     This specific feature of the invention enables the object, regardless whether it is thin or thick, to be fastened to by contacting the portions made uneven to provide a slip resistance thereto. 
     According to another specific feature in the third aspect of the present invention, the fastening device described above is characterized in that the clip member has a root and an end portion which lie at a substantially equal height from the outer wall. 
     This feature of the invention enables this portable apparatus placed with the clip member facing down to be placed horizontally. 
    
    
     
       BRIEF DESCRIPTION OF DRAWINGS 
       In the accompanying drawings: 
         FIG. 1  is a front elevational view illustrating a fan type chemical diffusing apparatus that represents a first form of embodiment of the present invention; 
         FIG. 2  is a side elevational view of the apparatus shown in  FIG. 1 ; 
         FIG. 3  is a rear elevational view of the apparatus shown in  FIGS. 1 and 2 ; 
         FIG. 4  is a side cross sectional view in elevation taken along the line IV-IV in  FIG. 1  as viewed in the direction of the arrows; 
         FIG. 5  is a decomposed perspective view of the apparatus shown in  FIGS. 1 to 4 ; 
         FIG. 6  is a front elevational view illustrating a cartridge for use in the apparatus shown in  FIGS. 1 to 5 ; 
         FIG. 7  is a side elevational view of the cartridge shown in  FIG. 6 ; 
         FIG. 8  is a rear elevational view of the cartridge shown in  FIGS. 6 and 7 ; 
         FIG. 9  is a front elevational view illustrating an apparatus main body alone of the apparatus shown in  FIGS. 1 to 5 ; 
         FIG. 10  is a side elevational view of the apparatus main body shown in  FIGS. 1 to 5  and  9 ; 
         FIG. 11  is a cross sectional view in elevation illustrating the interior of the apparatus main body shown in  FIGS. 1 to 5 ,  9  and  10 ; 
         FIG. 12  is a cross sectional view in plan taken along the line XII-XII in  FIG. 2  as viewed in the direction of the arrows; 
         FIG. 13  is a side cross sectional view in elevation illustrating a chemical receptacle for use in the arrangement shown in  FIG. 1 to 12 ; 
         FIG. 14  is an enlarged side cross sectional view illustrating details of the substantial part P shown in  FIG. 13 ; 
         FIGS. 15A and 15B  are a front elevational view and a side cross sectional view in elevation, respectively, illustrating a receptacle main body of the chemical receptacle shown in  FIGS. 13 and 14 ; 
         FIGS. 16A and 16B  are a front elevational view and a side cross sectional view in elevation, respectively, illustrating a lid body for the chemical receptacle shown in  FIGS. 13 and 14 ; 
         FIG. 17  is a side cross sectional view in elevation illustrating a fan type chemical diffusing apparatus that represents a second form of embodiment of the present invention in which four (4) battery cells are accommodated in the power supply housing; 
         FIG. 18  is a similar view illustrating a fan type chemical diffusing apparatus that represents a third form of embodiment of the present invention in which the chemical receptacle is loaded into a chemical receptacle retainer in the cartridge from its outer side; 
         FIG. 19  is a front elevational view illustrating a fan type chemical diffusing apparatus that represents a fourth form of embodiment of the present invention in which hoods are attached to airflow orifices and a chemical receptacle retainer of the cartridge at their outer sides, respectively; 
         FIG. 20  is a side elevational view of the apparatus shown in  FIG. 19 ; 
         FIG. 21  is a side and cross sectional view in elevation of a chemical receptacle, illustrating a fan type chemical diffusing apparatus that represents a fifth form of embodiment of the present invention in which use is made of a liquid chemical; 
         FIG. 22  is a front elevational view in part broken of the chemical receptacle shown in  FIG. 21 ; 
         FIG. 23  is a side cross sectional view in elevation illustrating a fan type chemical diffusing apparatus that represents a sixth form of embodiment of the present invention in which use is made of an axial fan and a heater; 
         FIG. 24  is a side elevational view in part broken and cross sectional illustrating a fan type chemical diffusing apparatus that represents a seventh form of embodiment of the present invention in which two chemical receptacles are coupled together using a coupling cylinder; 
         FIG. 25  is a side cross sectional view in elevation of a chemical receptacle, illustrating a fan type chemical diffusing apparatus that represents an eighth form of embodiment of the present invention in which use is made of a chemical receptacle that is variable in volume; 
         FIG. 26  a side elevational view in part broken and cross sectional illustrating a fan type chemical diffusing apparatus that represents a ninth form of embodiment of the present invention in which use is made of a chemical receptacle that is the form of bellows; 
         FIG. 27  is a side cross sectional view in elevation of a chemical receptacle, illustrating a fan type chemical diffusing apparatus that represents a tenth form of embodiment of the present invention in which the rate of flow of air passing through its interior is made controllable. 
         FIG. 28  is a front view illustrating one side end surface of the chemical receptacle shown in  FIG. 27 ; 
         FIG. 29  is a front view illustrating a shutter provided for the chemical receptacle shown in  FIGS. 27 and 28 ; 
         FIG. 30  is a side view decomposed in elevation illustrating a fan type chemical diffusing apparatus that represents an eleventh form of embodiment of the present invention in which the cartridge made detachable from the apparatus main body is made separable into the power supply housing body and the chemical receptacle retaining body; and 
         FIG. 31  is a front view decomposed in elevation of the apparatus shown in  FIG. 30 . 
     
    
    
     DETAILED DESCRIPTION  
     An explanation is first given in respect of a fan type chemical diffusing apparatus according to the first form of embodiment of the present invention with reference to  FIGS. 1 to 16 . The apparatus is shown to comprise an apparatus main body  1 , a cartridge  2  formed of a power supply housing  2   a  and a chemical receptacle retainer  2   b  which are united together, and a chemical receptacle  3 . The chemical receptacle  3  here is adapted to be fitted into, held by and disengaged from a chemical receptacle retaining section  4  of the chemical receptacle retainer  2   b . And, the cartridge  2  is adapted detachably to slide-fit with the apparatus main body  1 . Namely, slidably inserted into the apparatus main body  1  in a direction perpendicular to the central axis of the chemical receptacle retaining section  4 , the cartridge  2  is adapted to come into engagement with the apparatus main body  1 . To detach the cartridge  2  or disengage it from the apparatus main body  1 , an engagement releasing button  6  is provided. 
     The chemical receptacle  3  as shown in  FIG. 4  comprises a receptacle main body  3   a  having a cylindrical wall  7  formed with an annular, projecting rim or flange  7   a  for engagement axially in its midway and of which one side is closed with an end wall  8  made continuous therewith, and a lid body  3   b  with which the other side, open end of the receptacle main body  3   a  is closed, wherein each of the end wall  8  and the lid body  3   b  has a large number of vent holes  9  formed therethrough. The total open surface area occupied by the respective vent holes through the end wall  8  and the lid body  3   b  is made at least 60% of the total surface area of the end wall  8 . Accommodated within the chemical receptacle  3  is a chemical impregnated body  10 , here in the form of a mass of beads or spherical particles impregnated with a chemical that as will be described later in detail is made capable of volatilization in air. Other than being a mass of beads or spherical particles, the chemical impregnated body  10  may be a mass of wire or wires or small pieces, or a honeycomb or sponge structure. They may be made of pulp, nonwoven fabric or woven fabric, synthetic resin or an inorganic substance such as silica gel. 
     Referring to  FIGS. 4 to 8 , the cartridge  2  which comprises the power supply housing  2   a  and the chemical receptacle retainer  2   b  is L-shaped in a side view. It has at its base portion a power supply accommodated section  11  formed in hollow with one end open. The power supply accommodating section  11  has a battery case  13  inserted therein as slidable in and out like a drawer, the battery case  13  as shown being capable of accommodating therein two battery cells  12  as the power supply for the apparatus. 
     The battery case  13  has in its interior at one axial end side of the battery cells  12  a connecting terminal  14  formed so as to electrically connect the positive terminal of one of the two battery cells  12  to the negative terminal of the other. The battery case  13  also has at its other end side a pair of cutouts  15  and  15  formed to expose the respective opposite terminals of these battery cells  12 . On the other hand, the power supply housing  2   a  to be loaded with the battery case  13  has a pair of cutout openings  16  and  16  formed at positions beneath which the cutouts  15  and  15  are respectively arriving when the battery case  13  is fully inserted into the housing  2   a . This arrangement enables those exposed terminals of the two battery cells  12  in the battery case  13  to be brought into contact with a corresponding pair of conducting members or electrical contacts  36  located outside of the power supply housing  2   a.    
     The battery case  13  further has an opening or small window  18  formed through its outer wall  17  to enable the presence of the battery cells  12  inside to be checked. This outer wall  17  is also provided with a hook  20  with which an engagement protrusion piece  19  comes to disengageably engage when operated by the abovementioned release button  6 . 
     The chemical receptacle retainer  2   b  located above the power supply housing  2   a  and remote from the power supply accommodating section  11  is designed to hold the chemical receptacle  3  detachably in the chemical receptacle retaining section  4 , which is formed open circular in the chemical receptacle retainer  2   b . The chemical receptacle retaining section  4  is formed in its inner, annular surface with a first and a second set of projecting pieces  21   a  and  21   b , outer and inner, which as can be seen from  FIGS. 4 and 8  are designed to axially hold the circular, projecting engagement rim  7   a  on the chemical receptacle  3  inserted into the chemical receptacle retaining section  4  from its inner side. The inner, projecting pieces  21   b  temporarily deform when the projecting engagement rim  7   a  is led in and out past them and then return to their original shape. In this arrangement, therefore, carrying the projecting engagement rim  7   a  across the inner projecting pieces  21   b  outwards brings the chemical receptacle  3  into engagement with chemical receptacle retaining section  4  to be held thereby. Conversely, carrying the former  7   a  across the latter  21   b  inwards disengages the chemical receptacle  3  from its retaining section  4  inwards. 
     The cartridge  2  as will be seen from  FIGS. 4 to 8  has its end (top) formed with a pair of engagement projections  22  and has its base laterally formed with a pair of rails  23  each along the direction in which the cartridge  2  is slid into the apparatus main body  1 . 
     Mention is next made of the way in which the apparatus main body  1  is constructed. 
     Referring to  FIGS. 4 ,  5 ,  9 ,  10  and  11 , the apparatus main body  1  as the counterpart of the cartridge  2  to establish a slide fit therewith, includes, its outer wall  27 , an upper inner wall  25  which opposing the chemical receptacle retaining section  4  in the cartridge  2 , is formed with an inner airflow opening  24  that opposes the chemical receptacle  3  held by the chemical receptacle retaining section  4 , and a lower inner wall  26  that opposes the base of the power supply housing  2   a . Provided in the space between these inner walls  25  and  26  and the outer wall  27  is a spiral duct  29  that communicates a region of the inner airflow opening  24  with an outer airflow opening  28 . And, within this duct  29  is there mounted a silocco fan  32  having a region of its central axis fronting the inner airflow opening  24 , the silocco fan  32  being coupled to the output shaft  31  of a motor  30  supported to lie in a region of the center of the duct  29  as shown also in  FIG. 11 . The outer airflow opening  28  is formed in a side face of the outer wall  27  and is made open so that it faces in a direction essentially perpendicular to that in which the inner airflow opening  24  faces, thereby permitting the airflow produced by the fan  32  to be discharged sideways of the apparatus main body  1 . 
     The apparatus main body  1  has a pair of engagement holes  33  formed at its inner top, with which the two engagement projections  22  formed on the top of the cartridge  2  are designed to engage, respectively. It also has a pair of grooves  34  and  34  formed in its inner bottom, two opposed surfaces, with which the two rails  23  and  23  formed on the cartridge  2  are designed to engage, respectively. 
     With continued reference with  FIGS. 4 ,  5 ,  8  and  11 , in the apparatus main body  1  the engagement protrusion piece  19  mentioned above is also internally equipped which with the cartridge  2  brought into engagement with the apparatus main body  1  is designed to engage with the hook  20  formed on the battery case  13 . This engagement protrusion piece  19  is so internally equipped as to be movable sideways by means of a spring  35  made integrally with its body portion from a plastic, within the apparatus main body  1 . The body portion of the engagement protrusion piece  19  as shown in  FIG. 11  is coupled, at its end  35   a  opposed to the spring  35  in the direction of its sideway movement, to the engagement releasing button  6  that is slidably mounted on the outer wall  27  of the apparatus main body  1 . 
     Mounted to one inner, lower side face of the apparatus main body  1  in those areas corresponding in position to the cutouts  16  and  16  formed in the power supply housing  2   a  is a pair of electric contacts  36  and  36  which are admitted into the battery case  13  through these cutouts  16  and  16  to contact the terminals of the battery cells  12 , respectively. These electric contacts  36  and  36  are each made of a wire that is elastic, and are electrically connected to the motor  30  via an ON/OFF switch  37  included the outer wall  27  of the apparatus main body  1 . In its switching circuit is there a pilot lamp  38  connected that lights up when the switch  37  is turned ON. This switching circuit may also have a timer  38   a  connected in series with the switch  37 . The switch  37  is here designed to be turned ON and OFF by means of a slide piece  39  exposed from the outer wall  27 . 
     Referring to  FIGS. 2 ,  3  and  4 , this fan type chemical diffusing apparatus is provided therefor with a clipping device or clip fastener  48  on the rear  27   a  of the outer wall  27  of the apparatus main body  1 . The clip fastener  48 , i.e., a device for fastening by a clip the apparatus to an object such as an apparel of the user comprises a clip  40  having a hole  41  and deformably fastened to the rear surface  27   a  of the outer wall  27  of the apparatus main body  1 , and a raised portion or projection  42  formed to rise from the rear surface  27   a  of the outer wall  27  and adapted to enter the hole  41  in the clip  40 . 
     The clip  40  is made in the form of a tongue and has its root portion joined to a supporting mount  44  joined to the rear surface  27   a  of the outerwall  27  of the apparatus main body, both unitarily by an integrated assembling method. And, as the clip  40  is viewed laterally, it is configured to be spaced from the rear wall surface  27   a  in a region near the root portion. Then, the clip  40  in an area closer to its end a little towards the root portion becomes closest to the rear wall surface  27   a  to provide a pressure foot  40   a  therefor and in an area from the pressure foot portion  40   a  to the end leaps away from the rear wall surface  27   a , describing a circular arc. 
     Because of the hole  41  formed in the clip  40 , two or a pair of such pressure foots  40   a  are created at the opposite sides of the hole  41 , respectively, namely placed in a line perpendicular to the direction in which the clip  40  is inserted with. And, it is between these pressure foots  40   a  that the projection  42  that enters this hole  41  is formed on the rear surface  27   a  of the outer wall  27 . This projection  42  as viewed laterally is formed to intersect the pressure foots  40   a , and a space  45  is made up in a region between the root portion of the clip  40  and the rear wall surface  27   a.    
     The supporting mount  44  to which the root portion of the clip  40  is fastened in flush therewith and the end of the clip  40  are arranged to lie at the same height H from the rear surface  27   a  of the outer wall  27 . 
     The supporting mount  44  is provided at its center with a strap threading hole  43  through which a strap is threaded. 
     With the clip device  48  so constructed as mentioned above, hooking the clip  40  on the hem of a pocket on the upper wear allows this hem  49  of pocket as shown in  FIG. 12  to be inserted into the space between the clip  40  and the rear surface  27   a  of the outer wall  27 . Then, the pocket hem  49  is pressed down or against the rear wall surface  27   a  with the pressure foots  40   a  and  40   a  located at the opposite sides of the hole  41  in the clip and pressed up in the hole  41 , off the pressure foots  40   a  and  40   a , with the projection  42 , thereby held down and gripped in a wavy pattern. 
     As a result, even if an object to be gripped on and fastened to is a thin one such as the pocket hem  49 , the fan type chemical volatilizing and diffusing apparatus is firmly caught on and fastened to it. On the other hand, a thick object being the case will cause the clip  40  to deform in proportion to its thickness and the space between the clip  40  and the rear surface  27   a  to be forced to widen. This makes even greater the spring pressure applied on it than on the thin object, thereby fastening the apparatus even more firmly thereto. 
     Further, with the object to be caught by the clip being a waist belt, the belt will be caught in the space  45  between a region of the root portion of the clip  40  and the rear surface  27   a  of the outer wall  27 , thereby holding the apparatus fastened thereto without falling off. 
     The feature that the supporting mount  44  and the clip  40  are made even in height from the support surface  27   a  enables an object to be smoothly inserted between the clip  40  and the support surface  27   a . The feature also enables the fan type chemical volatilizing and diffusing apparatus to be horizontally placed such as on a table by simply placing the apparatus with the clip  40  facing down. 
     In the form of embodiment described above, it is also possible to configure the clip  40  with a number of pressure foot portions  40   a  spaced apart from one another in the form of the teeth of a comb and a number of projections  42  each designed to enter between adjacent such pressure foot portions  40   a  as mounted on the rear support surface  27   a  of the outer wall  27  of the apparatus main body. 
     In the form of embodiment described above, at least of one of an inner surface area of the pressure foot portion  40   a  of the clip  40 , a surface area of the outer wall  27  that opposes the inner surface area of the pressure foot portion  40   a  and a surface area of the raised portion  42  is made uneven to provide a slip resistance for the object. The uneven portion may be made of a plurality of raised streaks, a large number of punctate projections or an uneven surface having a slip resistance. 
     An explanation in detail is next given in respect of the chemical receptacle  3  with reference to  FIGS. 13 to 16 . 
     The chemical receptacle  3  as shown in  FIGS. 15A and 15B  includes a receptacle main body  3   a  formed of a cylindrical wall  7  having its one end closed with an end wall  8  formed with a large number of vent holes  9 . The chemical receptacle  3  as shown in  FIGS. 16A and 16B  also includes a lid body  3   b  formed of a cylindrical wall  7 ′ having its one end closed with an end wall  8 ′ formed with such vent holes  9 . 
     Here, the cylindrical wall  7 ′ of the lid body  3   b  has an outer diameter such that the cylindrical wall  7 ′ is closely fitted in the cylindrical wall  7  of the receptacle main body  3   a  as received by its inner surface. Further, the end wall  8 ′ of the lid body  3   b  is larger in diameter than the cylindrical wall  7 ′ so that its periphery provides a flange  7   a′  for the cylindrical wall  7 ′. The flange  7   a′  is made substantially equal in outer diameter to the cylindrical wall  7  of the receptacle main body  3   a.    
     Further, one of the inner surface of the cylindrical wall  7  of the receptacle main body  3   a  and the outer surface of the cylindrical wall  7 ′ of the lid body  3   b  where they are fitted with each other as shown in  FIGS. 13 and 14 , is formed with an annular recess  82  and the other is formed with an annular projection  83 . Furthermore, the receptacle main body  3   a  is formed on its periphery with an annular projection  7   a  to enable its detachable engagement with the receptacle retainer  4  in the fan type chemical volatilizing and diffusing apparatus. 
     The cylindrical wall  7 ′ of the lid body  3   b  as shown enlarged in  FIG. 14  has its inner surface cylindrical surface that is tapered in an end portion  7   b′  thereof to become wider outwards. On the other hand, the inner surface of the cylindrical wall  7  of the receptacle main body  3   a , too, is likewise tapered in an end portion  7   b  thereof to widen outwards. 
     With the chemical receptacle  3  so constructed as mentioned above, fitting the cylindrical wall  7 ′ of the lid body  3   b  into the inner surface of the cylindrical wall  7  of the receptacle main body  3   a  unites the two bodies  3   a  and  3   b  together as shown in  FIG. 13 . Then, the flange  7   a′  of the lid body  3   b  comes into contact with the end face of the cylindrical wall  7  of the receptacle main body  3   a . Also, with the annular recess and projection  82  and  83  of the cylindrical walls  7  and  7 ′ brought into engagement with each other, the two bodies  3   a  and  3   b  are even more firmly joined together. 
     This arrangement when the receptacle main body  3   a  filled with a mass of chemical impregnated discrete bodies or particles  10  is closed with the lid body  3   b  prevents the chemical impregnated discrete bodies or particles from getting into the end face of the receptacle main body  3   a  and the end wall of the lid body  3   b  because it permits the lid body  3   b  to come to be fitted into the receptacle main body  3   a  while driving a fraction of chemical impregnated bodies or particles in contact with the cylindrical wall  7  of the receptacle main body  3   a  to move towards the inside of the receptacle main body  3   a.    
     Then, the outwards widening taper surface  7   b′  provided at the end portion of the cylindrical wall  7 ′ in its inner surface of the lid body  3   b  causes the lid body  3   b  to be fitted into the receptacle main body  3   a  while thrusting aside the chemical impregnated bodies  10  inwards of the receptacle main body  3   a.    
     The chemical receptacle having the chemical receptacle main body  3   a  and the lid body  3   b  fitted with each other is here made symmetrical in shape about the annular projecting engagement rim  7   a . This permits the chemical receptacle  3  when inserted into the receptacle retaining section  4  in the fan type chemical volatilizing and diffusing apparatus to be inserted by making either the end wall  8  or  8 ′ face it. 
     The chemical receptacle  3  is composed of a material that is impermeable with a chemical. For example, aluminum, stainless steel and glass are effective. In an economical consideration, an inexpensive plastic is effective. In this case, a polyester plastic is used that is chemical impermeable, inexpensive and good in both safety and stability. By the way, a technology expected to be significant in future is currently under development, which overcoats an inexpensive resin with a permeation preventing agent without contact. 
     The chemical receptacle composed of a plastic may be impregnated and/or coated with a UV absorber on its inner and/or outer surface so as to be prevented from degrading by light. The construction material such as plastics may be impregnated with antioxidant to have an enhanced resistance property. 
     Mention is next made of assembling the apparatus in this form of embodiment as well as its operation. 
     To build up the apparatus so constructed as mentioned above, the battery case  13  loaded with the battery cells  12  is inserted and loaded into the power supply accommodating section  11  in the cartridge  2 , and the chemical receptacle retaining section  4  in the cartridge  2  so loaded is loaded with the chemical receptacle  3  to hold it. The cartridge  2  so loaded is slid along the inner wall  25  into the apparatus main body  1  and thereby incorporated therein. Then, the engagement projections  22  and  22  on the cartridge  2  are engaged with the engagement holes  33  of the apparatus main body  1 , the rails  23  and  23  with the grooves  34  and  34 , and further the hook  20  on the outer wall  17  of the battery case  13  with the engagement protrusion piece  19 ; hence the cartridge  2  fitted into engagement with the apparatus main body  1 . The engagement protrusion piece  19  is then moved along a cam profile  20   a  of the hook  20  to engage with a jaw portion of the hook  20 . 
     In this state, the inner airflow opening  24  formed in the upper inner wall  25  of the apparatus main body  1  is opposed to the chemical receptacle  3  in the cartridge  2 . Also, the electrical contacts  36  and  36  mounted to one inner, lower side face of the apparatus main body  1  enters the cutouts  16  and  16  from which they come into contact with the terminals of the battery cells  12  and  12  in the battery case  13 , thereby making up the electric circuit for the motor  30 . Then, the switch  37  is turned ON by sliding the slide piece  39  to drive the motor  30  and in turn the fan  32 . Outside air is thus drawn past the chemical receptacle  3  to flow in through the inner airflow opening  24 , which past the duct  29  is discharged through the outer airflow opening  28 . This causes the chemical ingredient impregnated in the chemical impregnated body  10  within the chemical receptacle  3  to volatilize in the airflow passing therethrough and then to diffuse through the outer airflow opening  28  into the atmosphere. The airflow that the fan  32  produces in the apparatus in this way does flow remote from the battery  12 . 
     Turning the switch  37  ON for the driving of the fan  32  also electrically energizes the pilot lamp  38  to light it, indicating that the apparatus is in operation. Further, the timer  38   a  if included in the switch circuit enables the state of the apparatus turned ON to be switched OFF after a given time period. 
     The cartridge  2  is detached from the apparatus main body  1  by pressing the loading release button  6  inwards to disengage the engagement protrusion piece  19  from the hook  20 . 
     The outer airflow opening  28  is formed with a plurality of cross pieces  28   a  to allow air to flow out past interstices between formed thereby. These cross pieces  28   a  are provided to prevent entry of a finger or a foreign matter into the apparatus main body  1 , and to play a role to avert a danger and to prevent the fan from halting. 
     For the pilot lamp  38  that is lit by its electrical energization with the switch  37  turned ON, use is advantageously made of a light emitting diode (LED) to save consumption of the battery energy. An LED consumes only 15% or less of the total current consumption of the apparatus. The pilot lump  38  then gradually falls off in intensity as the battery falls in voltage, and goes out when it becomes dead. 
     Also in the form of construction described, the chemical receptacle  3  used can be altered in volume or size as desired simply by changing the size of projection of its retainer  2   b  from the chemical receptacle retaining section  4 . 
     On the other hand, the battery cells  12  used can be altered in number and size, D(R20), C(R14), AA(R6), as desired by changing the size of the power supply accommodating section  11  of the power supply housing  2   a  and the size of the battery case  13 . 
       FIG. 17  shows an example as the second form of the apparatus according to the present invention in which the power supply accommodating section  11  and the battery case  13  in the power supply housing  2   a  are made larger in size to have four battery cells  12  accommodated therein. In this instance, leaving the hook  20  unaltered in position on the outer wall  17  of the battery case  13  allows the apparatus main body  1  to be used in common as it is without changing its size. Further, changing the apparatus main body in volume with respect to the cartridge  2  can change the fan and the motor in volume as desired. 
     In these forms of embodiment of the invention, variations in size of the chemical receptacle  3  may be prepared that vary in chemical consumed (lasting) time period for selection and interchange. Further, variations in battery capacity of the power supply housing  2   a  may be prepared that vary in battery exhausted (used up) time period for selection and interchange. Furthermore, the ability in the forms of embodiment described to change the apparatus main body  1  in volume makes it possible to change the fan and motor (blower) in size to be included therein, thereby permitting a desired wind velocity and airflow capacity to be selected in compliance with a place where the apparatus is used. And, the apparatus according to the present invention has enabled the time period for the chemical to be used up and the time period for the battery to be used up to coincide with each other. This makes it possible for the apparatus when the chemical therein has lost its efficacy to become ready for reuse just upon exchanging the cartridge  2 . 
     While in describing the foregoing forms of embodiment, mention is made of using a battery for the power supply, the power supply may be a commercial power supply. Then, the power supply accommodating section  11  in the power supply housing  2   a  is provided with a plug to be inserted to a domestic plug socket and has a power converter incorporated therein that converts commercial electric power to power in the form adapted for the motor  30  to drive the fan  32 . It is also possible to make the apparatus usable with either the commercial power supply or the battery on selection. For example, in the use of the commercial power supply, the circuit for the battery is made blocked from the circuit for the apparatus main body. 
     Alternatively, the power supply may be a rechargeable battery that is charged as it may or does demand. 
     As will be apparent from foregoing description, it has become possible to relatively position the chemical receptacle  3  and the power supply so each of them receives substantially no limitation in capacity or volume from the other. It has also become possible to position the chemical receptacle  3  relative to the chemical receptacle retainer  2   a  so it receives substantially no limitation in volume (no limitation in its axial size) from the latter. On the other hand, the apparatus main body  1  receives substantially no limitation in volume relative to the cartridge  2 , either. 
     While in the forms of embodiment so far described, the chemical receptacle  3  is shown inserted from the inside of the chemical receptacle retaining section  4  of the chemical receptacle retainer  2   b  and brought into engagement and retained therewith upon the annular projecting engagement rim  7   a  getting over across the one set of projecting piece  21   b  as shown in  FIGS. 4 and 17  etc., it may be made possible to insert the chemical receptacle  3  into the chemical receptacle retaining section  4  of the chemical receptacle retainer  2   a  from the outside thereof. 
       FIG. 18  shows such an example as the third form of embodiment of the invention in which the receptacle retaining section  4  of the receptacle retainer  2   a  has its outer open end sufficient in size to accept the annular projecting engagement rim  7   a  formed on the chemical receptacle  3 . A first and a second set of more than one, e.g., three projecting pieces  21   a  and  21   b  are here again formed both rising from the inner surface of the receptacle retaining section  4  and designed to axially catch and hold the annular projecting engagement rim  7   a  between them. Here, the set of projecting pieces  21   b  are arranged to lie at the outer open end of the receptacle retaining section  4  and outer of the projecting pieces  21   a , permitting the chemical receptacle  3  to be inserted from the outside of the chemical retainer  2   b  and caught held by the receptacle retaining section  4  upon the annular projection  7   a  getting over across the projecting pieces  21   b . It is also made possible to insert the chemical receptacle  3  into the chemical receptacle retaining section  4  of the chemical retainer  2   b  from the outside thereof by providing an arrangement in which the chemical receptacle  3  is threaded into the chemical receptacle retaining section  4 . 
     Adopting this form of embodiment make it possible to exchange the chemical receptacle  3  without disengaging the cartridge  2  from the apparatus main body  1  and thus facilitates exchanging the chemical receptacle  3 . 
       FIGS. 19 and 20  show the fourth form of embodiment of the present invention in which the outside of the outer airflow opening  28  and the outside of the chemical receptacle retaining section  4  in the apparatus main body are covered with a first and a second hood  51  and  52 , respectively. 
     The first hood  51  is configured so as to cover the upper side of the outer airflow opening  28  therewith and designed to lie detachably held by engagement portions  53  mounted on an area in the periphery of the outer airflow opening  28 . 
     On the other hand, the second hood  52  is made in the form of a cylinder with its upper side made longer like a pent roof and is designed to stay disengageably fitted over the outward projection of the chemical receptacle retaining section  4  of the chemical receptacle retainer  2   a.    
     This form of embodiment of the apparatus prevents in a rainfall drops of rain from getting into the outer airflow opening  28  and wetting the chemical in the chemical receptacle  3 . 
     While in the forms of embodiment so far described, a chemical receptacle  3  is shown which is filled with a chemical impregnated body  10  that is impregnated with a chemical therein, it is possible to use, as shown in  FIGS. 21 and 22 , a chemical receptacle  54  that is divided by a partition plate  55  into two compartments one of which is filled with a liquid chemical  56  and the other of which is loaded with an impregnatable body  57 . The body  57  is here impregnated with the liquid chemical  56  by means of a siphoning cord  58  passing through the partition  55 . In this case, the liquid chemical impregnated in the body  57  is allowed to volatilize in an airflow passing though the chemical receptacle  54  and thereby emitted into the outside. 
     In this form of embodiment, the chemical receptacle  54  having its own upper and lower sides as mentioned above needs to be fitted with the chemical receptacle retaining section  4  of the cartridge  2  so that the compartment in which the liquid chemical  56  is stored lies in the underside while the apparatus is in service. 
       FIG. 23  shows the sixth form of embodiment of the present invention that reverses the direction of the airflow with respect to the chemical receptacle  3  and permits the airflow to be heated while passing through the chemical receptacle  3 . 
     Specifically in this form of embodiment, an axial fan  59  is coupled to the drive shaft  31  of the motor  30  so that the fan  59  faces the inner airflow opening  24  and, when the motor  30  is driven, produces an airflow directed to pass through the inner airflow opening  24  towards its outside. Further, a heater  60  in the form of a disk is mounted between the fan  59  and an end face of the inner airflow opening  24  as held in an annular recess  61  formed in the upper inner wall  25 . The heater  60  is electrically connected in an electric circuit (not shown) to the power supply, parallel to the motor  30  driving the fan  59 . An ON/OFF switch included in the electric circuit permits the heater  60  to be energized to heat up when needed. 
     In this form of embodiment, a chemical volatilizing and diffusing air is emanated outwards of the chemical receptacle  3 . Heating up the heater  60  makes it possible to raise the temperature of the airflow passing through the chemical receptacle  3  to accelerate chemical volatilization from the chemical integrated body  10  held in the chemical receptacle  3 . And, in this case, air is taken in through the outer airflow opening  28 . 
     Forms of embodiment shown in  FIGS. 24 and 25  represent examples in which the chemical receptacle  3  attached to the apparatus for service is made variable in chemical capacity. 
     That is,  FIG. 24  show the seventh form of embodiment of the present invention in which in the cartridge  2  holding the chemical receptacle  3  in the chemical receptacle retainer  2   b,  one end of a coupling cylinder  62  is fitted over a portion of the chemical receptacle  3  that is exposed from the chemical receptacle retainer  2   b  and another chemical receptacle  3  is fitted into the other end of the coupling cylinder  62 . 
     This form of embodiment enables two chemical receptacles  3  to be coupled together coaxially by means of the coupling cylinder  62 , and makes the chemical capacity in service twice as large as in the previous forms of embodiment. 
     Also in this form of embodiment, the use of a plurality of coupling cylinders  62  permits a plurality of chemical receptacles  3  to be coupled one to another in succession and allows the chemical capacity in service to be selected at any desired multiple of that for a single chemical receptacle. Further, the coupling cylinder  62  may be configured to extend its cylindrical wall from the annular projecting engagement rim  7   a  on the chemical receptacle  3  so that it may be united with this additional receptacle  3 . Still further, the fit may be not only a slide fit but also a thread fit. 
       FIG. 25  shows an example as the eighth form of embodiment of the present invention in which a single chemical receptacle  63  can have its chemical capacity varied according to the position at which its lid body  63   b  is fitted into its main body  63   a.    
     The receptacle main body  63   a  here is formed in its inner surface with three annular grooves  64   a ,  64   b  and  64   c  axially spaced apart by a suitable distance. On the other hand, the lid body  63   b  has an elongated cylindrical sidewall (engagement portion)  63   c  that can be fitted into the receptacle main body  63   a  and on which an annular projection  65  is formed for engagement with any one of these annular grooves  64   a ,  64   b  and  64   c . And, selecting which of these annular recesses  64   a ,  64   b  and  64   c  in the receptacle main body  63   a  the annular projection  65  on the cylindrical sidewall  63   c  is engaged with variably establishes the depth of fit by which the cylindrical sidewall  63   c  can be fitted with the receptacle main body  63   a  and hence the capacity of the chemical receptacle  63 . 
     The annular projecting engagement rim  7   a  on the receptacle main body  63   a  in the chemical receptacle  63  according to this form of embodiment is positioned spaced apart from the bottom surface by the same distance a as in the chemical receptacle  3  shown in  FIG. 4 . This makes it possible for this chemical receptacle  63  to be detachably engaged with the chemical receptacle retainer  2   b  of the cartridge  2  and held thereby in the same manner as the chemical receptacle  3  shown in and described in connection with  FIG. 4 . 
     In this form of embodiment, the capacity or volume of the chemical receptacle  63  is varied stepwise by an amount corresponding to the distance or spacing between adjacent annular recesses  64   a  to  64   c.    
     Instead of the slid fit described, adopting a threaded coupling by threading the cylindrical sidewall of the lid body into the receptacle main body to form the chemical receptacle makes it possible to steplessly change the depth or extent to which the lid body is inserted and in turn the volume of the receptacle, by changing the depth of threading. 
       FIG. 26  shows the ninth form of embodiment of the present invention as an example that employs a bellows for the sidewall of a chemical receptacle  66  in its receptacle main body  66   a.  The receptacle main body  66   a  of the chemical receptacle  66  is made of an inner portion  66   c  located inside of the chemical receptacle retainer  2   b  and an outer portion  66   b  exposed from the latter, and which portion  66   b  is here constituted with the bellows. The outer portion  66   b  has its one end face formed with a large number of vent holes  9  and has at its other end a flange  67  that comes into engagement with an end of the inner portion  66   c.    
     In this form of embodiment, changing the degree of expansion and contraction of the bellows forming the outer portion  66   b  enables the chemical capacity in the chemical receptacle  66  to be varied. 
       FIGS. 27 to 29  shows the tenth form of embodiment of the present invention as an example in which changing the airflow rate passing through a chemical receptacle  68  varies the rate of volatilization of the chemical therefrom. 
     The chemical receptacle  68  has a pair of end faces each of which is formed with vent holes  9 . One of these end faces is provided with a plurality of radially extending vent regions  68   a  equiangularly spaced apart from one another about its center and in which such vent holes  9  are formed as shown. And, the one end face in its outside has a shutter  69  mounted turnably supported on a pin  70 , and the shutter  69  is formed with a plurality of radially extending open windows  71  equiangularly spaced apart from one another. This shutter  69  when turned is designed to uncover with these open windows  71 , and to cover with its unopen areas, the vent holes  9  in the vent regions  68 . 
     Thus in this form of embodiment, changing the areas that the open windows  71  overlap with the vent regions  68   a  for the chemical receptacle  68  enables the rate of the airflow through the chemical receptacle  68  to be adjusted. 
       FIGS. 30 and 31  shows the eleventh form of embodiment of the present invention as an example in which the power supply housing  2   a  and the chemical receptacle retainer  2   b  that make up the cartridge  2  are made separate and can be disjoinably joined together. The chemical receptacle retainer  2   b  is formed at its end with a pair of engagement projections  22  for engagement with corresponding holes  33  formed in the apparatus main body  1 . It also has a pair of rails  23   a  and  23   a  formed on its lower opposite sides for engagement with corresponding grooves  34  and  34  formed in the apparatus main body  1  in its lower inside opposite surfaces. 
     On the other hand, the power supply housing  2   a  on has a pair of rails  23   b  and  23   b  formed on its outer opposite sides for engagement with the grooves  34  and  34  in the apparatus main body  1 , with which the rails  23   a  and  23   a  on the chemical receptacle retainer  2   b  are designed to also engage. 
     In the construction mentioned above, the cartridge  2  is assembled with the apparatus main body  1  first by bringing the chemical receptacle retainer  2   b  loaded with the chemical receptacle  3  into engagement with the apparatus main body, this by engaging the engagement projections  22  with the corresponding holes  33  and engaging the two rails  23   a  and  23   a  with the corresponding grooves  34  and  34 . 
     Then, the power supply housing  2   a  is inserted into the apparatus main body  1  first by engaging the two rails  23   b  and  23   b  with the corresponding grooves  34  and  34  and sliding those rails in these grooves until the end of the power supply housing  2   a  comes in contact with the lower surface of the chemical receptacle retainer  2   b . Then, the hook  20  formed on the outer wall  17  of the battery case  13  in the power supply housing  2   a  is brought into engagement with the engagement protrusion piece  19  in the apparatus main body  1  to complete assembling the power supply housing  2   a  into the apparatus main body  1 . 
     This form of embodiment enables the power supply housing  2   a  and the chemical receptacle retainer  2   b  to be exchanged individually with respect to the apparatus main body  1 . 
     Further, while in the various forms of embodiment of the present invention described in the foregoing the chemical receptacle is shown to be engaged with and thereby held by the apparatus main body by means of the chemical receptacle retainer, it is also possible to make the chemical receptacle and the chemical receptacle retainer in one piece or integrated. It is further possible to make the chemical receptacle loadable directly into the apparatus main body without intermediary of the chemical receptacle retainer. 
     For the chemical, i.e., the active ingredient, employed in each of the various forms of embodiment of the invention described above, use may be made of an aromatic or fragrant agent, a deodorant, a microbicide, an acaricide, a harmful insect or animal repellent, an insecticide, an insectifuges, an insect growth control agent, a sucking action inhibitor or the like, which is volatile, singly or in a combination. 
     For example, in killing insects, any one or more of a variety of volatile insecticides so far used may be utilized. Illustrative are pyrethroid insecticides, carbamate insecticides and organophosphorus insecticides Pyrethroid insecticides are known to be high in safety and have been used well, of which preferred examples are listed below, each given in the order of the general name, the chemical and the parenthesized trade name followed by the producer.
         allethrin: d1-3-allyl-2-methyl-4-oxo-2-cyclopentenyl d1-cis/trans-chrysanthemat (Pynamin, Sumitomo Chemical Co.)   d1•d-T80-allethrin: d1-3-allyl-2-methyl-4-oxo-2-cyclopentenyl d-cis/trans-chrysanthemat (Pynamin forte, Sumitomo Chemical Co.)   d1•d-T-allethrin: d1-3-allyl-2-methyl-4-oxo-2-cyclopentenyl d-trans chrysanthemat (Bioallethrin)   d•d-T-allethrin: d-3-allyl-2-methyl-4-oxo-2-cyclopentenyl d-trans chrysanthemat (Esbiol)   d•d-T80-prallethrin: (+)-2-methyl-4-oxo-3-(2-propionyl)-2-cyclopentenyl (+)-cis/trans-chrysanthemat (Etoc, Sumitomo Chemical Co.)   resmethrin: 5-benzyl-3-furylmethyl d1-cis/trans-chrysanthemat (Chrythron, Sumitomo Chemical Co.)   d•d-T80-resmethrin: 5-benzyl-3-furylmethyl d-cis/trans-chrysanthemat (Chrythron forte, Sumitomo Chemical Co.)   empenthrin: 1-ethynyl-2-methyl-2-pentenyl d1-cis/trans-3-(2,2-dimethyl vinyl)-2,2-dimethyl-1-cyclopropane carboxylate (Vaporthrin, Sumitomo Chemical Co.)   terallethrin: d1-3-allyl-2-methyl-4-oxo-2-cyclopentenyl-d1-cis/trans-2,2,3,3-tetramethyl-cyclopropane carboxylate (Knoxthrin, Sumitomo Chemical Co.)   phthalthrin: N-(3,4,5,6-tetrahydrophthalimide)-methyl d1-cis/trans chrysanthemat (Neopynamin, Sumitomo Chemical  Co.)   d•d-T80-phthalthrin: (1,3,4,5,6,7 -hexahydro-1,3-dioxo-2-indolyl)methyl d1-cis/trans-chrysanthemat (Neopynamin forte, Sumitomo Chemical Co.)   furamethrin: 5-propargyl-2-furylmethyl d-cis/trans-chrysanthemat (Pynamin D, Sumitomo Chemical Co.)   permethrin: 3-phenoxybenzyl dl-cis/trans-3-(2,2-dichlorovinyl)-2,2-dimethyl-1-cyclopropanecarboxylate (Eksmin, Sumitomo Chemical Co.)   phenothrin: 3-phenoxybenzyl d-cis/trans-chrysanthemat (Sumithrin, Sumitomo Chemical Co.)   imiprothrin: 2,4-dioxo-1-(prop-2-inyl)-imidazolidine-3-yl methyl (1R)-cis/trans-chrysanthemat (Pralle, Sumitomo Chemical Co.)   fenvalerate: α-cyano-3-phenoxybenzyl-2-(4-chlorophenyl)-3-methyl butylate (Sumicidin, Sumitomo Chemical Co.)   cypermethrin: α-cyano-3-phenoxybenzyl d1-cis/trans-3-(2,2-dichlorovinyl)-2,2-dimethyl cyclopropane carboxylate (Agrothrin, Sumitomo Chemical Co.)   cyphenothrin: (±) α-cyano-3-phenoxybenzyl (+)-cis/trans-chrysanthemat (Gokilaht, Sumitomo Chemical Co.)   ethofenprox: 2-(4-ethoxyphenyl)-2-methyl propyl-3-phenoxybenzyl ether (Trebon)   tefluthrin: 2,3,5,6-tetrafluoro-4-methyl benzyl-3-(2-chloro-3,3,3-trifluoro-1-propenyl)-2,2-dimethyl-1-cyclopropane carboxylate   fenpropathrin: α-cyano-3-phenoxybenzyl cis/trans-2,2,3,3-tetramethyl cyclopropane carboxylate   fenfluthrin: 2,3,4,5,6-pentafluorobenzyl-d1-cis/trans-3-(2,2-dichlorovinyl)-2,2′-dimethyl-1-cyclopropane carboxylate   1-ethynyl-2-methyl-2-pentenyl cis/trans-2,2,3,3-tetramethyl-1-cyclopropane carboxylate       

     For specific examples of the organophosphorus insecticides may be listed the following:
         diazinon: (2-isopropyl-4-methyl pyrimidil-6)-diethyl thiophosphate (Diazinon)   fenitrothion, MEP; O,O-dimethyl-O-(3-methyl-4-nitrophenyl)thiophosphate (Sumithion)   pyridaphention; O,O-dimethyl-O-(3-oxo-2-phenyl-2H-pyridazin-6-yl)phosphorothioate (Ofunack)   malathion: dimethyl dicarbetoxy ethyl dithiophosphate (Malathon)   dipterex: O,O-dimethyl-2,2,2-trichloro-1-hydroxyethyl phosphonate   chlorpyrifos: O,O-dimethyl-O-(3,5,6-trichlor-2-pyridyl)-phosphorothioate   fenthion: O,O-dimethyl-O-(3-methyl-4-methylthiophenyl)-phosphorothioate (Baytex)   dichlorvos: O,O-dimethyl-2,2-dichlorovinylphosphate (DDVP)   propetamphos: O-[(E)-2-isopropoxycarbonyl-1-methylvinyl]-O-methylethylphosphoramidethioate (Safurotin)   Abate: O,O,O′,O′-tetramethyl-O,O′-thiodi-P-phenylene phosphorothioate   prothiofos: dithiophosphoric acid O-2,4-dichlorophenyl O-ethyl S-propyl ester (Tokuthion)   phoxim: O,O-diethyl-O-(α-cyano benzylidene amino)thiophosphate       

     For oxadiazol insecticides may be listed the following:
         methoxadiazone: 5-methoxy-3-(2-methoxyphenyl)-O-1,3,4-oxadiazol-2-(3H)-one (Elemic)       

     For chloro nicotine insecticides may be listed the following:
         imidacloprid: 1-(6-chloro-3-pyridylmethyl)-N-nitro imidazolidin -2-ylideneamine (Admire)   acetamiprid: (E)-N 1 -[(6-chloro-3-pyridyl)methyl]-N 2 -cyano-N 1 -methyl acetone amidine (Mospilan)       

     For specific examples of the growth control agent may be listed the following:
         pyriproxyfen: 4-phenoxy phenyl (RS)-2-(2-pyridyl oxy)propyl ether   methoprene: 11-methoxy-3,7,11-trimethyl-2,4-dodecadienoic acid-1-methyl ethyl ester   hydroprene: ethyl(2E, 4E)-3,7,11-trimethyl-2,4-dodecadienoate   phenoxy carb: ethyl[2-(4-phenoxy phenoxy)ethyl]carbamate       

     For specific examples of the insect repellent may be listed the following:
         N,N-diethyl-m-toluamid (deet)   dimethyl phthalate   dibuthyl phthalate   2-ethyl-1,3-hexane diol   1,4,4 a,  5 a,  6,9,9 a,  9 b -octahydrodibenzofuran-4 a -carb ardehyde   di-n-propyl isothinchomeronate   p-dichloro benzene   di-n-butyl succinate   diethyl amid caprate   N-propyl acetanilide   β-naphthol   camphor       

     In addition to an anti-oxidizing agent and an ultraviolet absorbing agent for preventing degradation of the active ingredient described, there may be incorporated an inhibitor, depressor and/or retardant for adjusting the amount of volatilization of the active ingredient, a substance or substances having a function or functions of giving out fragrance, deodorizing and/or sterilizing as desired in accordance with the present invention. Also, an aromatic or fragrant agent, adeodorant, a microbicide each can be singly volatilized in the nature of things. 
     Although the present invention has been described hereinbefore in terms of the presently preferred forms of embodiments with respect to or embodied in a fan type chemical diffusing apparatus, a chemical receptacle therefor and a clip type fastening device therefor, it is to be understood that such disclosure is purely illustrative and is not to be interpreted as limiting. Consequently, without departing from the spirit and scope of the invention, various alterations, modifications, and/or alternative applications of the invention will, no doubt, be suggested to those skilled in the art after having read the preceding disclosure. Accordingly, it is intended that the following claims be interpreted as compassing all alterations, modifications, or alternative applications as fall within the true spirit and scope of the invention.