Abstract:
A zipper pull with a cover member, which has a simple structure and can be manufactured at a low cost, can realize a good and stable receiving and holding ability of a pull-tab over a long period of time, and also can prevent swinging between respective component parts, is provided. 
     The cover member of the zipper pull is made of a soft material and has a shape so as to prevent the condition that the pull-tab substantially and directly contacts adjoining portions of an article in the immovable state at the first position. When a slider body and the pull-tub are received in a receptacle, at least the cover member and the slider body are supported and fixed with moving interruption means for interrupting a relative movement of the cover member and the slider body.

Description:
BACKGROUND OF THE INVENTION 
   1. Field of the Invention 
   The present invention relates to a zipper pull, and particularly relates to a zipper pull with a cover member capable of realizing stable and good receiving and holding property of a zipper pull-tub for a long period of time and further, capable of preventing backlash among respective component parts with each other. 
   2. Description of the Related Art 
   Conventionally, for example, zippers are widely used as fasteners for articles, such as bags and rucksacks, and for clothing articles, such as jackets, sweat suits, etc. As one example of the zippers, there is a common zipper pull attached to an opening of the aforementioned articles, which comprises a slider body selectively engaging and disengaging opposed engaging elements of a pair of co-operating zipper stringers by operation of a zipper pull, and a pull-tab that is made of a rigid material and is movably connected to the slider. 
   In addition, as the other example of the zippers, there is a zipper pull, which comprises three members including the slider body, the pull-tab and a cover member. This cover member is connected to the pull-tab and is adapted to be movable between a first position in which the pull-tab is concealed and a second position in which the pull-tab is revealed. This zipper provided with the cover member is often used as fasteners of clothes used by motorcyclists. The clothes can be made of leather, imitation leather, or similar materials, and which in general are rather costly. In such clothes, a prolonged and frequent bouncing of the pull-tab in use may, besides being annoying the rider, causes wear and damage of the portions of the clothes adjoining the zipper pull because the zipper pull directly contacts the adjoining portions of the clothes, and thereby representing inconvenience. 
   An example of a zipper provided with such kind of cover member is disclosed in, for example, U.S. Pat. No. 1,988,761. In the zipper pull disclosed in the U.S. Pat. No. 1,988,761, a flat, rigid cover plate is hingedly connected to the pull-tab. The cover plate is resiliently biased at the first position (a rest position), in which an unornamental assembly comprising the slider body and the pull-tab is concealed, in a direction contacting the adjoining portions of the article. Consequently, more neat and ornamental articles can be obtained. 
   On the other hand, as the other example of this zipper pull, for example, the specification of U.S. Pat. No. 5,101,538 discloses the other zipper pull having a pull-tab. A portion of a ring is integrally fixed to a free end of the pull-tab disclosed in this specification so as to surround this pull-tab, at the same time of molding the ring. This ring is always biased to an element side such that this ring is located on the same plane as the pull-tab. Therefore, when the ring is rotatably operated in a direction at which the ring is detached from the elements at a certain angle, its rebound resilience has been increased. This attaching position and the resilience of the ring acts for reducing the tendency of the zipper pull to bounce, which can be particularly annoying a person involved in a ritmic activity such as jogging. This resilient ring however leaves the pull-tab and the slider body of the zipper substantially unconcealed. 
   As described above, the zipper pull disclosed in the above mentioned U.S. Pat. No. 1,988,761 is biased to the first position in which the assembly is concealed in a direction contacting the adjoining portions of the article. Therefore, structurally, this zipper pull may be easily affected by the above mentioned defects and in this point, this zipper pull remains the same as before. Further, according to this conventional zipper pull, a connected portion shaped in a hinge between the rigid cover plate and the pull-tab is embossed upward and as well, the free end of the cover plate conceals the pull-tab with being abutting on a top surface of the slider body. Thus, for example, when this zipper pull is used as the fastener of the clothes used by the motorcyclist and the zipper pull bounces for a long time during use, the free end of the cover plate hits the top surface of the slider body hardly and this also involves a defect such that backlash among respective component parts may be generated as well as the hitting sound may annoy the motorcyclist. 
   In addition, the zipper pull disclosed in the above mentioned U.S. Pat. No. 5,101,538, as described above, has a function to reduce the tendency of the zipper pull to bounce by the attaching position of the ring for fixing the free end of the pull-tab and the resilience of the ring, however, the ring does not conceal the pull-tab and the slider body of the zipper. Therefore, not only the slider body of the zipper but also the structure around the connected portion with this pull are revealed to the outside, so that the article looks unattractive. In addition, according to this conventional zipper pull, the ring contacts the engaging elements more than the art disclosed in the above mentioned U.S. Pat. No. 1,988,761, so that the ring resiliently abut on a row of the engaging elements upon each turning the pull-tab via this ring. In this case, the ring may hit the adjoining portion of the clothes or the other articles and it is possible that the ring may damage the elements and their adjoining portion. 
   SUMMARY OF THE INVENTION 
   An object of the present invention is to provide a zipper pull with a cover member capable of being structured simply and with a low cost and realizing stable and good receiving and holding property of a zipper pull-tub for a long period of time and further, capable of preventing backlash among respective component parts with each other. 
   According to the invention, a zipper pull attached to an opening of the aforementioned articles, which comprises a slider body selectively engaging and disengaging opposed engaging elements of a pair of co-operating zipper stringers by operation of a zipper pull, being characterized in that the zipper pull further comprises a pull-tab made of rigid material and movably connected to the slider body, and a cover member connected to the pull-tab and made movable between a first position in which the pull-tub is concealed in the immovable state and a second position in which the pull-tab is revealed, and the cover member is made of a soft material and has a shape so as to prevent the condition that the pull-tab substantially and directly contacts the adjoining portions of the article at the first position. 
   Similarly to the aforementioned U.S. Pat. No. 1,988,761, the zipper pull according to the invention also comprises three members, namely, the slider, the pull-tab, and the cover member and the pull-tab is concealed within the cover member at least at the first position in which the pull-tab is concealed. However, the zipper pull according to the invention is greatly different from the conventional pull-tab in that the zipper pull according to the invention has a shape such that the pull-tab is maintained in the immovable state at the first position to prevent any direct contact of the pull-tab with the adjoining portions of the article. 
   As described above, according to the conventional arts disclosed in the aforementioned U.S. Pat. No. 1,988,761 and U.S. Pat. No. 5,101,538, the zipper pull tends to directly contact the row of the engaging elements and the adjoining portions of the clothes, and it causes wear or damage of the portions of the clothes adjoining the zipper pull. According to the invention, the cover member is made of a soft material and has a shape so as to prevent the condition that the pull-tab directly contacts the adjoining portions of the article at the first position. With this structure, the cover member is made immovable at the first position at which the pull-tab is concealed, and it makes possible for the pull-tab and the cover member itself to have a holding power against the pull-tab to prevent the movement of the pull-tab to the position contacting the adjoining portion of the article. 
   In addition, according to the invention, since the cover member is made of a soft material such as a soft synthetic resin, rubber, leather, or the like, the appearance thereof is soft and when the pull-tab is concealed at the first position, this cover member is well fitted with the outer shape of the pull-tub and further, even when the zipper pull contacts the other peripheral members, a harsh noise of a metallic clank is not generated. 
   Preferably, a receptacle for receiving and holding at least the pull-tab is formed on an inner side surface of the cover member. 
   Within the receptacle of the cover member, a sufficient space is secured, in which at least the pull-tab can be received and held. At the first position, at least the pull-tab can be completely concealed as well as the pull-tab is received and held immovably in the receptacle of the cover member. In addition, the zipper pull according to the invention has an elaborately designed appearance, so that a more neat and ornamental zipper pull having a higher commercial value can be effectively obtained. 
   Preferably, the receptacle of the cover member has an entrance passage having a size smaller than a corresponding dimension of the pull-tab and the pull-tab is firmly fitted in the receptacle through the entrance passage. 
   This invention defines a typical structure of the receptacle of the cover member. Since the cover member is made of the soft material, the cover material is firmly fitted and is supported along the outer shape of the pull-tab within the receptacle at the first position and it is easily transformed from the first position toward the second position, so that the pull-tab is detached from the receptacle to the outside. Therefore, it is possible to firmly hold the pull-tab within the receptacle of the cover member, and further, it is possible to easily and smoothly engage and disengage the pull-tab from the receptacle of the cover member. 
   Preferably, according to the invention, a receptacle for receiving and holding at least a part of right and left side surfaces of a slider body is formed on the inner side surface of the cover member. 
   This invention defines the other typical structure of the receptacle of the cover member and a sufficient space is secured, in which the side surfaces of the slider body is partially received in the inner side surface of the cover member. At the first position, the pull-tab is received in the receptacle and at the same time, a portion of the slider body can be fitted and supported. Further, by utilizing the soft material of the cover member, from the first position toward the second position, the pull-tab and the slider body are made easily detached from the receptacle. In the other words, according to the above described structure, it is possible to simply and smoothly engage and disengage a portion of the slider body together with the pull-tab in the receptacle of the cover member. 
   Next, the typical structure of the cover member is defined. According to the invention, an outer side surface in a longitudinal direction of the cover member has a convex curved surface. Alternately, the cover member is essentially shell-shaped, and its inner side surface is a concave curved surface facing the pull-tab. Preferably, the cover member has an essentially C-shaped transverse cross section. 
   Preferably, the cover member has an end portion which at the first position axially protrudes with respect to the pull-tab and the slider body and is manually grasped by a user to displace the cover member from the first position. It is preferable that the end portion of the cover member is longitudinally tapered. Alternately, it is defined that the end portion of the cover member has a tapered side surface. 
   In addition, a preferable material of the above described cover member may be defined and the cover member is made of soft plastics or rubber material. 
   Preferably, the pull-tab has a first end portion that is connected to the slider body, the cover member has an upper wall portion and right and left side wall portions and is connected to a second end portion of the pull-tab, which is at an opposite side of the first end portion, and moving interruption means is provided to prevent a relative movement of the slider body and the cover member at a first position of the cover member. 
   At the first position, the cover member and the slider body are engaged by the moving interruption means, and the slider body and the cover member are maintained in the immovable state. Since the zipper pull is provided with the moving interruption means, the cover member and the slider body do not move in any directions, so that it is possible to enhance a holding power with respect to the slider body. 
   Preferably, the moving interruption means is provided at a part of the receptacle of the cover member. 
   With the above structure, the portion of the receptacle of the cover member can be effectively used as the moving interruption means, and when the part of the slider body is received in the receptacle of the cover member, the cover member and the slider body are capable of being supported and fixed firmly and securely with the moving interruption means. In addition, the cover member is not deviated through the slider body and at the same time, the pull-tab is firmly fixed, so that it is possible to prevent the movement of the cover member and the pull-tab in any directions. Accordingly, it is possible to secure a quality of a zipper and the article, in which the zipper is attached, over a long period of time. 
   Preferably, the slider body has a pull attaching post on a part of an upper surface of the slider body, and the pull attaching post is fitted and supported in the receptacle by the moving interruption means. 
   Upon mounting the upper wall portion and the right and left side wall portions of the cover member on the pull attaching post that is fixed on the upper surface of the slider body, the positioning of the cover member in the longitudinal and the width direction is carried out, and the cover member is firmly fixed to the pull attaching post through the moving interruption means, so that it is possible to attach the cover member accurately and smoothly without revealing the fixing structure or the like to the outside, the fixing structure being provided to the cover member and the slider body. 
   It is preferable that, on an inner surface of the upper wall portion of the cover member, a fitting concave portion is provided to be engaged with an upper end portion of the pull attaching post. Accordingly, the cover member may have a simple structure as described above, so that a complex structure becomes unnecessary, the zipper pull can be compact and thinner, and further, the zipper pull can be easily treated. 
   Preferably, the moving interruption means is provided at a part of the right and left end portions of the upper plate of the slider body and the receptacle is provided at a part between opposed surfaces of the right and left side wall portions of the cover member, and by the moving interruption means, the receptacle is fitted and supported in the part of the right and left end portions of the upper plate. 
   When the slider body is received within the receptacle of the cover member, the right and left side wall portions of the cover member are simultaneously fitted into the right and left end portions of the upper plate of the slider body easily through the moving interruption means, so that the cover member may be supported and fixed firmly and securely. As a result, even in the simple structure such that the right and left side wall portions of the cover member and the right and left end portions of the slider body are fitted and fixed, upon fitting and fixing them, the both of them can be firmly and detachably fixed, and this results in remarkable improvement of assemble ability, a reliability, and the like. 
   Preferably, the moving interruption means are formed on the opposed surfaces of the right and left side wall portions of the cover member and the right and left end surfaces of the slider body, respectively, and the moving interruption means has a projecting portion or a concave portion to be fitted with each other. 
   In this case, for example, the movement interruption means can be configured by projecting row portions or projecting portions that are formed on any one of the opposed surfaces of the right and left side wall portions of the cover member and the right and left end surfaces of the slider body, and the concave portions that are formed on the other one of the opposed surfaces of the right and left side wall portions of the cover member and the right and left end surfaces of the slider body. As a result, it becomes possible to secure a contact area of the cover member and the slider body, and by setting the projecting portions and the concave portions as the right and left movement interruption means accordingly, the firm holding power between the respective component parts can be obtained. 
   In addition, the typical structure of the cover member may be defined. In other words, it is preferable that the cover member is hingedly connected to the pull-tab. In addition, it is preferable that the pull-tab has a first end connected to the slider body, and the cover member is connected to a second end of the pull-tab which is opposite to the first end, whereby at the second position the cover member forms an extended portion of the pull-tab adapted to be grasped by a user. 
   Since the extended portion of the cover member is extended at the above described first position in an axial direction with respect to the pull-tab and the slider body, the user can easily move the cover member from the first potion toward the second position by grasping the extended portion with his or her fingers, so that the user can attach and detach the cover member easily. In addition, since, at the first position, the cover member and the slider body are partially received and held in the receptacle of the cover member in an immovable state and further, the pull-tab and the slider body are concealed, the attaching and detaching operativity of the cover member can be improved even with a simple structure, and it is possible to effectively obtain a zipper pull having an elaborately designed appearance and a higher commercial value. 

   
     BRIEF DESCRIPTION OF THE DRAWINGS 
       FIG. 1  is a perspective view of a zipper or a slide fastener comprising a zipper pull according to the invention in a first position. 
       FIG. 2  is a perspective view of a zipper or a slide fastener comprising a zipper pull according to the invention in a second position. 
       FIG. 3  is a side view of the zipper shown in  FIGS. 1 and 2 , with the zipper pull shown in an intermediate position. 
       FIG. 4  is a side view of an assembly comprising a slider body and a zipper pull according to the invention. 
       FIG. 5  is a bottom plan view of the assembly shown in  FIG. 4 . 
       FIG. 6  is a sectional view on arrow taken along the line VI-VI in  FIG. 4 . 
       FIG. 7  is a side view of the assembly of  FIGS. 4 to 6 , showing the zipper pull in a variety of positions. 
       FIG. 8  is a perspective view of the assembly shown in  FIGS. 4 to 7 . 
       FIG. 9  is a perspective view of a pull-tab comprised in a zipper pull according to the invention. 
       FIG. 10  is a main part longitudinal sectional view notching a portion of the assembly according to a second embodiment of the invention. 
       FIG. 11  is a sectional view on arrow taken along the line XI-XI in  FIG. 10 . 
       FIG. 12  is a perspective view of the assembly according to a third embodiment of the invention. 
       FIG. 13  is a sectional view of the assembly of the third embodiment, corresponding to  FIG. 11 . 
       FIG. 14  is a perspective view taken along the line XIV-XIV in  FIG. 13 . 
       FIG. 15  is a side view of the assembly. 
       FIG. 16  is a sectional view on arrow taken along the line XV-XV in  FIG. 15 . 
       FIG. 17  is a sectional view showing a modified example of the assembly corresponding to  FIG. 16 . 
       FIG. 18  is a sectional view showing another modified example of the assembly. 
       FIG. 19  is a sectional view showing another modified example of the assembly. 
   

   DESCRIPTION OF THE PREFERRED EMBODIMENTS 
   The preferable embodiments according to the invention will be specifically described with reference to the attached drawings below. 
     FIGS. 1 to 9  show a first embodiment of a typical zipper pull according to the invention. In  FIG. 1 , there is shown a slide fastener or zipper  10  comprising, in a per se known manner, two stringers  11  and  12 , which can be for instance woven strips. The stringers  11  and  12  are provided respectively with a series of engaging elements  13  and  14 , such as teeth. 
   The zipper  10  is intended primarily for being used in clothes, particularly for motorcyclists, although other use is possible. The stringers  11  and  12  of zipper  10  are securely attached to each portions of the article respectively, in a per se known manner to respective portions or the article, the portions being shown in phantom line and indicated by reference numerals A and B in  FIG. 1 . The zipper  10  includes a slider body, indicated by a reference numeral  15  in  FIGS. 2 to 8 . The slider body  15  is adapted to selectively engage and disengage the engaging elements  13  and  14  of the stringers  11  and  12 . 
   A zipper pull, indicated by a reference numeral  20  as a whole, is connected to the slider body  15  and comprises an essentially rigid pull-tab  21  and a cover member  22  hingedly connected to the pull-tab  21  about an axis indicated by a reference mark X-X in  FIG. 2 . In the non-limited typical embodiment shown in the drawings (see in particular  FIGS. 8 and 9 ), the pull-tab  21  has an essentially ring-shaped first end portion  21   a , which is hooked to a corresponding upstanding structure (a pull attaching post)  15   a  of the slider body  15  ( FIG. 8 ), so as to be oscillatable with respect to the slider body  15 . 
   The pull-tab  21  has a second, essentially fork-shaped end portion  21   b  (see  FIGS. 8 and 9 ), which is hingedly connected to one end of the cover member  22 . The cover member  22  is made of, for example, a soft material, such as a plastic or rubber material. 
   In the typical embodiment shown in the drawings, the cover member  22  is essentially shell-shaped, and have a concave inner side surface  24 , and a convex outer side surface  25  ( FIG. 8 ). In the concave inner side surface  24  of the cover member  22 , a receptacle  26 , essentially in the form of an elongated groove, is formed, and the pull-tab  21  is received and held in the receptacle. On the opposite side surfaces of a first end portion  21   a  of this pull-tab  21 , outwardly extending projecting raw portions or winglets  21   c  are formed respectively (see in particular  FIGS. 8 and 9 ). 
   The inner surfaces of the longitudinal opposite side wall portions which delimit the receptacle or groove  26  of the cover member  22  are respectively provided with recesses  27  (see  FIG. 8 , wherein only one of the recesses  27  is visible), the recess being adapted to receive one of the projecting row portions  21   c  of the pull-tab  21 . In the region of the recesses  27 , the transverse width of the receptacle  26  of the cover member  22  is larger than the overall transverse width of the first end portion  21   a  of the pull-tab  21 . Thus, the first end  21   a  is to be forced-fitted into the receptacle  26  in order to engage the projecting row portions  21   c  into the corresponding recesses  27  of the cover member  22 . 
   The fork-shaped end portion  21   b  of the pull-tab  21  has two arms, which are engaged between the opposite side wall portions of the receptacle or groove  26  and a central projection  28  of the cover member  22  ( FIGS. 5 and 8 ). The hinge connection between the pull-tab  21  and the cover member  22  is achieved through a pin  29  fitted and fixed through the projection  28  and the opposite side wall portions of the cover member  22 , as well as through the respective arms of the fork-shaped second end portion  21   b  of the pull-tab  21 . 
   As is obvious in  FIG. 6 , in the region of the recesses  27 , the cover member  22  has an essentially C-shaped cross-section. The cover member  22  is made movable between a first position shown in  FIG. 1  and  FIGS. 4 to 6 , in which it conceals the pull-tab  21 , and a second position, shown in  FIG. 2 , in which it reveals the pull-tab  21 . 
   The shape of the cover member  22  is not particularly limited but it is a common and simple structure, and at the first position, it is adapted to prevent any direct contact of the pull-tab  21  and the slider body  15  with the adjoining portions A and B of the article to which the zipper pull-tab  10  is attached. Thus, the initially described deficiency of the zipper pull of the related art, that a high frequency bouncing of the pull-tab  21  at the first position causes partially wear and damage of the article, is overcome. 
   Preferably, as is obvious in  FIGS. 3 ,  4 ,  7  and  8 , the cover member  22  has a free end portion (an extended portion)  22   a  which at the first position ( FIG. 4 ) protrudes axially with respect to the pull-tab  21  and the slider body  15 , and is adapted to be grasped by a user with his or her fingers to displace the cover member  22  from the first position. The free end portion  22   a  of the cover member  22  is preferably tapered longitudinally, and more preferably, has a tapered side surface. 
   Since the cover member  22  that has been configured as described above is made of a soft material and it is easily transformed from the first position toward the second position, the cover material  22  is firmly fitted and is supported along the outer shape of the pull-tab  21  within the receptacle  26  at the first position, and the pull-tab  21  is detached from the receptacle  26  at the second position. Thus, it is possible to firmly receive and securely hold the pull-tab  21  within the receptacle  26  of the cover member  22 , and further, it is possible to easily and smoothly engage and disengage the pull-tab  21 . 
   In addition, the cover member  22  is structured to have a shape such that at the first position, it prevents any direct contact of the pull-tab  21  with the adjoining portions A and B of the article. According to this structure, the cover member  22  is made immovable at the first position, the movement of the pull-tab  21  and the cover member  22  to the position wherein they contact the adjoining portion A and B of the article is restrained, and it makes possible for the pull-tab  21  and the cover member  22  to have a holding power against the pull-tab  21 . 
   In addition, according to the invention, the cover member  22  is made of a soft material and the cover member  22  has a shape such that at the first position, it prevents any direct contact of the pull-tab  21  with the adjoining portions A and B of the article. Thus, as the other characteristic features of the invention, a portion of the slider body  15  can be simply and smoothly engaged and disengaged in the receptacle  26  of the cover member  22  together with the pull-tab  21 , and the holding power against the slider body  15  is secured with which the pull-tab  21  and the cover member  22  is made immovable in any directions at the first position. 
     FIGS. 10 and 11  show a second embodiment of a zipper pull according to the invention. The second embodiment is greatly different from the above described first embodiment in that moving interruption means for interrupting the relative movement of the cover member  22  and the slider body  15  is provided at a part of the receptacle  26  of the cover member  22 . Namely, at the inner side surface  24  of the cover member  22 , the receptacle  26  for receiving and holding the right and left end surfaces of the pull-tab  21  and a receptacle  26   a  for receiving and holding at least part of the right and left side surfaces of the slider body  15  are formed. The pull-tab  21  and the cover member  22  has the same structure as the aforementioned embodiment in that the projecting row portions  21   c  and the recesses  27  are engaged and disengaged with each other. Accordingly, in these drawings, the members that are substantially identical with the above described first embodiment are provided with the same member names and the same reference marks or numerals. 
   According to these drawings, also in the second embodiment, the zipper pull comprises three members, namely, the slider body  15 , the pull-tab  21 , and the cover member  22  as shown in  FIG. 10 . The slider body  15  has upper and lower plates  15   b  and  15   c , and a guiding pole  15   d  for coupling front portions of respective upper and lower plates  15   b  and  15   c . From respective rear ends of the upper and lower plates  15   b  and  15   c  to the generally center positions thereof, right-and-left upper and lower flanges are provided, respectively. Between the upper and lower plates  15   b  and  15   c , a Y-shaped guiding path for the engaging elements is formed. On the upper surface of this upper plate  15   b , a pull attaching post  15   a  having post portions  15   a - 1  and  15   a - 2  at the back and forward end portions thereof, which has a C-shaped transverse cross-section. 
   The front end post portion  15   a - 1  is integrally molded on the upper surface of the front end portion of the upper wing  15   b  to stand, and a lower end of the rear end post portion  15   a - 2  is arranged in such a manner that it forms a space in which the ring-shaped first end portion  21   a  of the pull-tab  21  can be inserted and it is embossed from the upper surface of the upper plate  15   b . Similarly to the slider body  15 , the pull-tab  21  is not different from the above described first embodiment substantially. 
   On the other hand, as shown in  FIG. 11 , the cover member  22  has a generally C-shaped transverse cross-section having right and left side wall portions  22   c  that are formed at right and left of an upper wall portion  22   b  having a smooth convex curved surface on its upper side. On the inner surface of the upper wall portion  22   b , at least rectangular fitting concave portion  27   a  is formed to be held at the upper end portion of the front end post portion  15   a - 1  of the pull attaching post  15   a . The movement interruption means as one of main mechanisms of the zipper pull  20  according to this second embodiment comprises the pull attaching post  15   a  and the fitting concave portion  27   a . This fitting concave portion  27   a  configures part of the receptacle  26   a  of the cover member  22 . The receptacles  26  and  26   a  secure spaces capable of sufficiently receiving and holding at least the pull-tab  21  and the pull attaching post  15   a  respectively. 
   Upon fitting the cover member  22  with the slider body  15 , the positioning in the back and forth direction and the width direction is carried out, and they are securely attached with each other without revealing a particular fixing structure at the outside of the cover member  22  and the slider body  15 . When the cover member  22  and the slider body  15  are fitted with each other, the fitting concave portion  27   a  of the cover member  22  and the pull attaching post  15   a  are firmly fixed as well as the pull-tub  21  is engaged with the projecting row portions  21   c , thereby preventing the movement of the cover member  22  in any directions. 
   Therefore, when the zipper pull  20  is positioned at the above described first position, even if a force to bound the cover member  22  with respect to the pull attaching post  15   a  acts directly on the cover member  22 , the cover member  22  is not moved in the back and forth directions, the right and left directions, the oblique direction and the up-and-down direction, and it is possible to enhance the holding power of the cover member  22 , so that a durability of the zipper pull can be enhanced. Accordingly, this cover member  22  can have a simple structure, so that a complex structure becomes unnecessary, and the zipper pull  10  is made to be more compact and thinner by appropriately setting the shape, size and the like of the fitting concave portion  27   a  of the cover member  22  depending on the shape and size and the like of the pull attaching post  15   a.    
   In addition, as described above, since the raw material of the cover member  22  is a soft material such as a plastic, a rubber material or leather, it is natural that a soft touch in appearance can be well obtained, but further, even when the cover member  22  and respective component parts are crushed with each other, a harsh noise for the user is not generated, so that it is possible to prevent annoying the user. 
     FIGS. 12 to 14  show a third embodiment of a zipper pull according to the invention. Meanwhile, in these drawings, the members that are substantially identical with the above described each embodiment are provided with the same member names and the same reference marks or numerals. According to the third embodiment, the recesses  27  of the cover member  22  and the projecting row portions  21   c  are excluded, protrusions  15   a - 3 ,  15   a - 3  are protruded from the right and left side surfaces of the front end portion  15   a - 1 , and concave portions  22   f ,  22   f  are formed on the opposed surfaces of the right and left side wall portions  22   c  corresponding to the protrusions  15   a - 3 . Accordingly, the protrusions and the concave portions as the right and left movement interruption means is set properly, so that the engagement between the cover member  22  and the pull attaching post  15   a  is carried our securely, and the sufficient holding power between the component parts is obtained. 
   In the third embodiment, when the zipper pull  20  is positioned at the above described first position, the engagement between the cover member  22  and the pull attaching post  15   a  is not deviated and at the same time, the cover member  22  and the pull-tub  21  are not moved in the right and left directions, the up-and-down direction, and the back and forth directions. Meanwhile, in the third embodiment, it is of course that the zipper pull comprises the projecting row portions or the protrusions formed at the inside opposed surfaces and engaging stepped portion or the engaging concave portions formed at the right and left side surfaces of the post portion  15   a - 1 . 
   Further, in the third embodiment, the recesses  27  of the cover member  22  and the projecting row portions  21   c  of the pull-tub  21  are excluded, but the invention is not limited by the illustrated examples. That is, the recesses  27  and the projecting row portions  21   c  may be provided, as well as the protrusions  15   a - 3  of the pull attaching post  15   a  and the concave portions  22   f  are provided. In this case, three members of the pull attaching post  15   a , the pull-tub  21 , and the cover member  22  are engaged completely, so that backlash and deviation among the component parts can be prevented completely, and the respective parts are supported and fixed firmly and securely. 
     FIGS. 14 to 16  show a fourth embodiment according to the invention. Meanwhile, in these drawings, the members that are substantially identical with the above described each embodiment-s are provided with the same member names and the same reference marks or numerals. In the fourth embodiment, the right and left side wall portions  22   c  are extended from the upper plate  15   b  to the guide path for the engaging elements. As compared with the cover member  22  according to the above described first embodiment, the concave inner side surfaces  24  of the cover member  22  are enlarged so as to completely conceal the upper plate  15   b  together with the pull-tab  21 . 
   Accordingly, the present embodiment is greatly different from the above described each embodiment in that the projecting row portions  21   c  of the pull-tab  21  are excluded, the right and left side wall portions  22   c  of the cover member  22  are fitted and engaged in the right and left end portions of the upper plate  15   b , and then it is constituting the moving interruption means for interrupting the relative movement of the slider body  15  and the cover member  22  in any directions. 
   According to the illustrated examples, at part of the right and left end portions of the upper plate  15   b , the projecting row portions  15   b - 1  are formed, respectively. At the inner surfaces of the right and left side wall portions  22   c  of the one cover member  22 , engaging concave portions  27   b  each having rectangular cross section are formed respectively, the engaging concave portions being fitted in and be supported at the projecting row portions  15   b - 1 , respectively. Further, the lower end portions of the inner surfaces of the right and left side wall portions  22   c  form stepped portions each having a guiding slid surface  22   d  and an engaging stepped portion  22   e . This engaging concave portion  27   b  is formed so as to be flush with the recess  27  of the cover member  22  and constitutes part of the receptacle  26   a.    
   The moving interruption means as one of main mechanisms of the zipper pull  20  according to this fourth embodiment comprises the projecting row portion  15   b - 1  and the engaging concave portion  27   b  so as to interrupt the relative movement of the slider body  15  and the cover member  22  in any directions. Adopting such a moving interruption means, the enough holding power of the cover member  22  and the pull tab  21  can be obtained while suppressing the swinging of the pull tab  21 . Further, it is a matter of course that, in place of the projecting row portion  15   b - 1 , protrusions can be formed intermittently on the right and left end surfaces of the upper plate  15   b.    
     FIGS. 17 to 19  show first to third modified examples of a zipper pull according to the present invention, respectively. Meanwhile, in these drawings, the members that are substantially identical with the above described each embodiment are provided with the same member names and the same reference marks or numerals. 
   The first modified example shown in  FIG. 17  is identical with the above described fourth embodiment in that a part of the slider body  15  together with the pull-tab  21  are completely concealed. However, it is greatly different from the above described fourth embodiment in that, on the inner surface of the upper wall portion  22   b  of the cover member  22 , at least rectangular fitting concave portion  27   a  is formed to be fitted and be supported at the front end post portion  15   a - 1  of the pull attaching post  15   a , on each if the inner surfaces of its right and left side wall portions  22   c , an engaging concave portion  27   c  having the rectangular cross section corresponding to the lower end opening peripheral surface of the engaging concave portion  27   a  is formed, and on part of the end portion of one upper plate  15   b , the projecting row portion  15   b - 1  to be fitted and engaged into the engaging concave portion  27   c  is formed, respectively. 
   Also, according to this first modified example, by using the soft material of the cover member  22 , the pull-tab  21  and the slider body  15  are easily engaged with and disengaged from the receptacles  26 ,  26   a  from the first position toward the second position. In addition, adopting such a moving interruption means, it is possible to sufficiently secure the fixing area of the slider body  15  and the cover member  22 . 
   The second modified example shown in  FIG. 18  is greatly different from the above described each embodiment and the above described first modified example in that, with excluding the projecting row portions  15   b - 1  of the upper plate  15   b  and the fitting concave portion  27   a  of the right and left side wall portions  22   c , the right and left end portions of the upper plate  15   b  are directly fitted in and engaged with the inner side surfaces  24  of the right and left side wall portions  22   c  of the cover member  22 . With the moving interruption means having such a simple structure, without revealing a particular fixing member at the outside of the cover member  22  and the slider body  15 , the cover member  20  and the pull-tab  21  are not moved in any directions and it is possible to enhance the holding power against the slider body  15 . 
   In addition, according to the third modified example shown in  FIG. 19 , the lateral width dimension of the upper plate  15   b  in the right and left directions is set to be larger than the lower plate  15   c , and as well, an engaging concave portion  27   d  to be fitted and fixed to each of the right and left end portions of the upper plate  15   b  is formed throughout part of the inner surface of each of the right and left side wall portions  22   c  of the cover member  22 . With these structures, similarly to the above described each modified example, the cover member  22  can be accurately guided toward the right and left end portions of the upper plate  15   b  and further, between the opposed surfaces of the right and left side wall portions  22   c  of the cover member  22 , the right and left end portions of the upper plate  15   b  can be simply and accurately engaged. 
   In this way, the configuration of the moving interruption means can be appropriately set depending on the shape, size and the like of the cover member  22  and the slider body  15 . According to the above described fourth embodiment and the first to third modified examples, for example, fitting holes (not illustrated) may be formed at the right and left end surfaces of the upper plate  15   b  and projections (not illustrated) to be fitted into the fitting holes may be formed on the inner side surfaces  24  of the right and left side wall portions  22   c  of the cover member  22 . It is a matter of course that these fitting holes and projections can be formed with appropriately combined with the right and left end surfaces of the upper plate  15   b  and the inner side surfaces  24  of the right and left side wall portions  22   c  of the cover member  22 . 
   As described above, the preferable embodiments and modified examples according to the invention are exemplified. For example, according to the above described each embodiment and each modified example, as one example of the moving interruption means, a constructional example such that the pull attaching post  15   a  and the fitting concave portion  27   a  of the cover member  22  are fitted with each other, a constructional example such that the engaging concave portions  27   b ,  27   d  of the cover member  22  are resiliently fitted to the right and left end portions of the upper plate  15   b , a constructional example such that the projecting row portions  15   b - 1  of the upper wing plate  15   b  are arranged, and further, the engaging concave portion  27   c  of the cover member, which is resiliently engaged with the projecting row portions  15   b - 1  of the cover member  22 , and the like are exemplified. However, it is a matter of course that the object of the invention can be sufficiently achieved by any one of the moving interruption means or arbitrary combination thereof in relation to the other factors such as the configurations and the sizes of the slider body  15  and the pull attaching post  15   a . Further, it is possible to form the projection and the engaging concave portion at the pull attaching post  15   a  and the fitting concave portion  27   a  of the cover member  22 . 
   In addition, according to the invention, the configuration of the cover member is not particularly defined, and as a configuration of the cover member, the right and left side wall portions of the cover member may be formed as a flat wall surfaces as described above, and the right and left side wall portions of the cover member may be formed as wall portions each having a smoothly and outwardly curved convex surface. Accordingly, it is a matter of course that the present invention is not limited to the above described embodiments and modified examples, and the design of the invention may be variously varied within a scope that is recited in each claim.