Abstract:
A dispenser ( 1 ) comprises two actuating units ( 2, 3 ) and within these actuating units ( 2, 3 ) an intermediate unit ( 4 ) which is axially shiftable relative to the actuating units ( 2, 3 ). The intermediate unit ( 4 ) receives the premeasured does of powder in a blister ( 5 ) and includes setting means ( 30 ) for forwarding the blister ( 5 ). The intermediate unit ( 4 ) further has a cylinder ( 51 ) of a pump ( 51 ), control means ( 79 ) for an outlet valve ( 9 ) of said pump ( 51 ) and means ( 75 ) for preventing withdrawal from the first unit ( 2 ). On discharge the medium is under precompression and directed into powder chamber ( 14 ) which previously was torn open by opening means ( 20 ). For replacing the blister ( 5 ) a lid ( 6 ) is tilted sidewards.

Description:
TECHNICAL FIELD AND BACKGROUND OF THE INVENTION 
     The invention relates to a dispenser for media which may be at least partly solid or flowable, in forms such as liquid, pasty and/or gaseous. Preferably, the media are grainy or powdery and thus suitable as bulk media. The dispenser is held single-handedly and is simultaneously operated with the fingers of one hand. Thus, the pharmaceutical, cosmetic or similar media are expelled. Such media may be designed for application to the respiratory tract, that is, for nasal or oral administration. 
     The dispenser may be provided for a single discharge action or a single unidirectional operating stroke. Thus, return means for returning the dispenser from the end position to the initial or rest position may be omitted. The dispenser may also permit several actuating strokes in sequence, each restarting from a different position or the above-mentioned rest position. 
     For discharging minutely dosed medium quantities of as high as 30, 20, 15 or 12 mg and as low as 5 mg, highly compact dispensers suffice. Although the reservoir chamber containing the medium premeasured for a single discharge dose may be an elongated capsule or cup, it is, however, of advantage to shape it as a flat tray and/or spherically domed. Thus, the medium is flushed out of the open reservoir chamber by a second or conveying medium such as a liquid, gas or air. The dosing medium is thereby atomized in the second medium to achieve a uniform distribution and singling of the particles up to the exit from the medium outlet. 
     The cup depth of the reservoir chamber may be less than 7, 5 or 4 mm and more than 2 mm. Its largest diameter is less than 20, 15 and 10 mm and more than 3 or 6 mm or greater than the cup depth. The reservoir is replaceable after having been emptied of its contents. The chamber volume of the reservoir is filled only partly with medium to facilitate its loosening right from the start of discharge. The reservoir or magazine body may be dimensionally stable or flexibly bendable in the zones connecting to the rigid chamber. It is made in the form of a transparent or non-transparent or non-translucent blister having film-thin walls. Prior to discharge, the filled reservoir chamber is sealed to be pressure-tight and sterile. The closure is formed by an adhesively or hot-sealingly attached film of plastic, or a metal foil such as aluminum. The foil, which is planar, covers the chamber opening and sealingly adjoins the chamber body directly up to the bounds of the chamber opening as well as full-length about the circumference thereof. Thus, no medium can enter between chamber body and closure from the chamber. Reference is made to the German Patent Application 197 04 849, published Aug. 13, 1998, U.S. Pat. No. 5,964,417, issued Oct. 12, 1999 and the German Laid-Open Document 195 02 725, laid open Aug. 1, 1996, including the features and effects described therein in the present invention. 
     OBJECTS OF THE INVENTION 
     An object of the invention is to provide a medium dispenser which avoids the disadvantages of prior art configurations or assures the advantages of the cited configuration. Another object is to permit translation of the reservoir into various function postures, for example, for sequentially triggering various functions of the dispenser. A further object is to endow the dispenser with a high conveying power for a small stroke. Still another object is to facilitate replacement of the reservoir or a magazine. Other and further objects of the invention will be obvious upon an understanding of the illustrative embodiment about to be described, or will be indicated in the appended claims, and various advantages not referred to herein will occur to one skilled in the art upon employment of the invention in practice. 
     SUMMARY OF THE INVENTION 
     The invention provides for operationally producing a functional motion of the reservoir in the course of a discharge cycle or an associated actuation. Such a motion may be a linear stroke motion, an indexing motion oriented transverse thereto or an opening motion oriented transverse to the indexing. Due to the indexing motion, the reservoir is moved from a protected starting position of the reservoir chamber into the position determined for discharge. Due to the opening motion a wall, particularly a chamber lid providing an outlet closure, is provided with an outlet opening for the medium. Due to the stroke motion the complete dispenser may be shortened so that it is particularly well held in the hand during discharge. The opening motion commences just before or together with the indexing motion which ends either before the opening member engages the closure of the reservoir chamber or thereafter, but before the opening motion ends. In the latter case the opening member, while already engaging the closure, executes two motions oriented transverse to each other. Thus, the closure is opened particularly effectively or over a large width. The stroke motion may be used to control or open a further outlet closure, or valve, to convey the second medium, to limit the operating motion or stroke, to prime the second medium or the like. 
     A reservoir support exchangeably accommodating the reservoir is synchronously movable with the reservoir, particularly over the functional stroke, not over the working stroke but, where necessary, over the indexing motion. The reservoir support may form a boundary or cylinder or plunger of a compression chamber or pump chamber, may comprise the opening member for the outlet closure, may form the stop, may constrict an outlet duct for the second medium leading to the reservoir chamber and being constricted prior to flow commencement of this medium, may form a counter for counting the discharge cycles or may form an indicator of the counter, may improve or stiffen the mutual mounting of the two bases or casing units, may bound an annular chamber adjoining an outermost dispenser wall, may form an abutment for a return spring or a downholder for the reservoir, may movably or rotatably but centrally receive the reservoir, may cause a resilient tensioning relative to one of the base units and transverse to the stroke, etc. 
     In operation the reservoir or reservoir support is entirely enclosed within a housing. The casing parts thereof are formed directly by the two base units. For exchanging the reservoir or to render it manually accessible the housing needs to be opened. Instead of entirely separating the two housing parts, one of the housing parts comprises an access opening which is closed off in operation by a lid, such as an end lid. This lid includes a stud having the medium outlet, the opening member, a setting member of the positioner, means for positioning the reservoir without motion play, an actuating handle, an abutment for a spring or the like. The lid may be located axially mountable, radially insertable or pivotable on the associated housing part and bound that part of the outlet duct for the second medium which leads to the reservoir chamber or that outlet duct which leads from the reservoir chamber to the medium outlet. All of these functions may be caused by a one-part or multi-part component. The associated remaining housing part centers the reservoir or reservoir support which prevents withdrawal and which disables the axial withdrawal of the associated unit from the other unit. Additionally this housing part may directly drive the reservoir or reservoir support over the associated stroke path relative to the other housing part. In the closed position the lid and the associated housing part are mutually positionally secured via a snap connector causing a seal. 
     The indexing motion may be caused by mutually axially mating circumferential serrations having slanting flanks like the counter means. Reference is made to U.S. Pat. No. 4,565,302, issued Jan. 21, 1986, for including further features and effects described therein in the present invention. 
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS 
     Example embodiments of the invention are explained in more detail in the following and illustrated in the drawings in which: 
     FIG. 1 is a partial axial section through a dispenser according to the invention when in the starting position and in the opened position for changing the magazine, 
     FIG. 2 is an enlarged view of the dispenser shown in FIG. 1, but in the closed condition, 
     FIG. 3 is a transverse cross-sectional view looking upwards through the dispenser, and 
     FIG. 4 is a transverse cross-sectional view looking downwards through the dispenser. 
    
    
     DETAILED DESCRIPTION 
     FIG. 1 shows a dispenser  1  comprising two basic units  2 ,  3  manually axially movable relative to each other, forming the mutually remote ends of the dispenser and compressible for shortening the dispenser  1 . Units  2 ,  3  form a housing internally entirely receiving a further unit  4 . The outer diameter of unit  4  equals the largest inner diameter of first unit  2 . The length of unit  4  corresponds to at least a third or half of the spacing between the large outer end faces or handles of units  2 ,  3 . A further unit  5  or a reservoir is located entirely within the base  2 ,  3  or housing and between opposing end faces of units  3 ,  4 . Unit  5  extends axially significantly less than each of units  2  to  4 . Units  4 ,  5  are movable relative to and independent of each other but also commonly relative to each of units  2 ,  3 , namely both axially and in a transverse or rotational motion. Units  2 ,  3  are permanently prevented from mutual rotation. A further unit  6  is movable relative to each of units  2  to  5  and commonly with unit  3 . Unit  6  forms a sub-unit of unit  3 , namely a removable or hinged lid of the housing. 
     Medium outlet  7  porting to the environment is movable commonly with each of units  3 ,  6  and relative to units  2 ,  4 ,  5 . Reservoir assembly  8  is provided totally within housing  2 ,  3 . Reservoir assembly  8  delivers a conveying or second medium, such as air. The second medium is supplied firstly to the medium and then to outlet  7  via an outlet closure  9  or resiliently closed valve. Axis  11  of the outlet  7  is eccentric, but axially parallel to the center or main axis  10  of units  2  to  5  and closely adjacent to their outermost circumferences. The first medium flows within units  2 ,  4  and  5  and upstream of outlet  7  parallel to axes  10 ,  11  in direction  12  away from unit  2 . Thus it leaves the dispenser  1  in direction  12 . From the starting position shown in FIG.  2  and for actuation units  3  to  6  are manually moved in axial direction  13  relative to unit  2 . 
     Reservoir  5  has a deep-drawn or injection-molded one-part base body including a plurality of chamber bodies  15 , in this case eight in number. Bodies  15  are uniformly distributed about axis  10 . Reservoir  5  also has a separate planar outlet closure or foil closure  16 . Each chamber body  15  forms a spherical cap or reservoir chamber  14 . Chamber  14  has a maximum chamber depth that is smaller than the spherical radius. Thus, the chamber bound is progressively flared outward as it extends up to the planar chamber opening  17 . The spherical caps or bodies  15  protrude beyond only one side of a flange or reservoir plate  18 , which is made in one part with caps  15 . Caps  15  have intermediate spacings smaller than the width of their opening  17 . Caps  15  each have an opening  17  at the side of plate  18  which is remote from body  15 . The opening&#39;s side is also covered by the annular disk-shaped closure  16 . The inner circumference of plate  18  has at least one driver  19 , for example, a protuberance, a tooth or the like. Driver  19  engages unit  4  and is axially movable and withdrawable, and positively moves unit  4  in the rotation direction. Driver  19  carries reservoir  5  along when unit  4  is rotated about axis  10 . 
     A piercing member  20  for destructing and opening closure  16  are provided in axis  11 , within housing  2 ,  3  and between units  3 ,  4 . Piercing member  20  opens closure  16  only in the vicinity of each single opening  17 . Piercing member  20  is formed as one end of a discharge stud  21  freely protruding along axis  11  and having an outlet  7  at its free end face. The straight nozzle  21  has an outermost shell  22  conically tapered at an acute angle toward outlet  7 . An inner shell  23  is radially spaced from and located within shell  22 . Shell  23  is traversed over its full length up to outlet  7  by an outlet duct  24  which is at least 2 mm and at most 5 mm wide and has constant cross-sections throughout. The shells  22 ,  23  are of different lengths but they merge into each other at the outermost end of stud  21 . Shell  23  protrudes in direction  13  beyond shell  22  and into unit  3 . The inner end of shell  23  has in one part an opening member  25  such as a piercing or tearing member. Upon an axial or rotational motion about axis  10  member  16  may be burst open at that point where chamber  14  is aligned with axis  11 . The central radial spacing of each chamber  14  from axis  10  of reservoir  5  equals the spacing between axes  10 ,  11 . According to U.S. Pat. No. 5,469,989, issued Nov. 28, 1995, reservoir  5  may also work with plungers for the medium. Reference is made to this document for including the features and effects thereof in the present invention. 
     Unit  6  is mounted on unit  3  by a hinge  27  to be pivotable about an angle of precisely 90° or more. The hinge axis is oriented at right angles transverse to the common axial plane of axes  10 ,  11  and located between the outer and inner circumferences of unit  3 . The shell  22  connects in one part and by its flared end to a planar end wall  26  which forms the end wall of unit  3  remote from unit  2 . Wall  26  forms at its outside handle  28  provided with projections for higher gripping capacity. Handle  28  is squeezed to actuate unit  3 . On the side of axis  10  which is remote from axis  11 , wall  26  forms the associated bearing body for bearing  27 . The axis of mount  27  may be close to the plane of handle  28 . At the inside, wall  26  has a radially resilient snap member  29  protruding annularly along its outer circumference. Member  29  positionally secures unit  6  on unit  3  without motion play when unit  6  is in its operating position. 
     A rotational mechanism  30  is provided within unit  3  and between end wall  6  and unit  4 . On each actuating stroke, the rotational mechanism  30  moves reservoir  5  with or without unit  4  about axis  10 . Thus, the next chamber  14  still to be opened is aligned with axis  11 . A sleeve or positioning member  31  protrudes from the inside of wall  26  in one part and in direction  13 . Member  31  is directly juxtaposed with shell  22  and has rotating members distributed uniformly about its inner circumference, namely axial webs with laterally bevelled ends. Complementary positioning members  32  of the outer circumference of a sleeve project in opposite direction from unit  4  and may be either in one part with unit  4  or formed by a separate socket. A mutual actuating stroke of units  3 ,  4  causes one of the cited indexing steps of reservoir  5  because only then do members  31 ,  32  interengage. Members  31 ,  32  are closely surrounded by a permanently preloaded compression spring  33  annuarly supported with one end on an abutment  34  of the inside of wall  26 . The other spring end annularly supports on reservoir  5  or part  16 ,  18 . Thus reservoir  5  is pressed against unit  4 . At the end of the stop-limited stroke of means  30  the member  32  is slightly spaced from wall  26 . 
     Unit  3  forms a part  35  of the housing including an annular end wall  36  which connects to wall  26 . An outermost shell  37  and an inner shell  38  freely project in direction  13  from wall  36 . Shell  38  is located within and radially spaced from shell  37 . Shell  38  is shorter than shell  37 . Thus, from the inside of wall  36  a narrow annular groove emanates and is bounded by shells  37 ,  38  for being engaged by unit  2 . This groove extends only over part of the length of shell  37  and over the full length of shell  38 . Bearing  27  is located on the outside of wall  36 . Wall  36  has a recess for receiving plate  26 , which is entirely countersunk. Plate  26  also surrounds shell  22 . Thus, the outsides of walls  26 ,  27  interconnect in a flush, coplanar and gapless manner. A counter member  39  protrudes along the inner circumference of this recess over wall  36 . The interengaged snap seat of members  26 ,  36  and  29 ,  39  is pressure-tight and also provides a labyrinthine seal. 
     A downholder  40  axially positionally secures reservoir  5  on unit  4 . The associated end of spring  33  is directly supported and centered on body  40 . Instead of the design shown by full lines in the drawings, locking body  40  may additionally have the configuration  41  shown by dash-dotted lines. Body  40 ,  41  then has sleeve part  40  centered around axis  10  and sleeve part  41  centered around axis  11 . For the air flowing through closure  9  between unit  4  and wall  26  the interengaging members  26 ,  31 ,  32 ,  40  form a dual duct or transverse deflection  42 , namely first a deflection transverse to axis  10  and then between the circumferences of members  31 ,  32  a deflection back in direction  13 . The flow velocity is greatly increased by correspondingly reduced flow cross-sections within this back deflection. Downstream of the back deflection all of the air is aimed against the bottom of a portion of the chamber  14  positioned near axis  11 , namely radially outwards from the chamber portion closer to axis  10 . 
     Thereby, in chamber  14  the flow causes a swirling or rotational flow about axis  10  or shell  23 . The flow leaves chamber  14  as a helical flow directly into duct  24 . For that, support  40  has an annular pressure and sealing end face  44  extending about axis  10 . During rotation face  44  is supported with pretension and is stationary or moves slidingly on closure  16 . Face  44  is traversed by a groove or transverse duct  43  oriented toward axis  11 . The air flows through duct  43  after return deflection to be slantingly directed into the bottom of aligned chamber  14 . The outer end of the holder  40  engages the outer circumference of body  31  by its inner circumference via a snap and sealing connector  45 . On member  31  holder  40  is axially displaceable and either rotatable or prevented from rotation. At the stroke end of setting means  30  the support  40  may abut on the inside of wall  26  or on mount  34  causing a manifold increase of its support or pressing force. Support  40 ,  41  may also be in one part with spring  33 , wall  26  or member  31 , for example, as a bellows. 
     Embodiment  41  is expediently oval in axial view and connects spacedly between axes  10 ,  11  to the outer circumference of holder  40  in one part. At its end remote from reservoir  5  section  41  has an end wall permanently traversed by tube  23 . This end wall has a lip sealingly sliding on the outer circumference of tube  23 . Thus the sealing pressure increases with the fluid pressure within section  41 . Also section  41  sealingly supports over its entire circumference with a pressure face  44  on closure  16  or plate  18 . Face  44  of support  40  overengages opening  17  towards the opening&#39;s center axis. Section  41  also causes the air to pass narrow flow cross-sections while being oriented and aimed exclusively against the chamber  14  to be emptied. Thereby, the remaining chambers  14  or their closures  16  are not blown against. 
     Sleeve member  32  is separate from and rotatable about axis  10  relative to the base body of unit  4 . Member  32  connects to this base body via a rotor or freewheel coupling  46  which permits rotation of coupling member  32  relative to the base body codirectional with the indexing motion while positively preventing this rotation in the opposite direction. The radially inner coupling member of the base body may be a star having inclined, protruding, resiliently bendable locking arms shown in FIG.  4  and permitting rotation in one direction only. On its outer circumference coupling member  32  has a rotation driver  47  which is complementary to driver  19 . Driver  47  has two radially protruding and circumferentially uniformly-distributed cams. Between the side flanks of these cams and about axis  10  the circumferentially equally sized cams of driver  19  engage without motion play radial to axis  10 . 
     The one-part base body of unit  4  has an annular end wall  48  and a cylinder jacket  51  which protrudes from wall  48  in direction  13 . Walls  48 ,  51  are located radially within shell  38  or axially displaceably but sealingly connect to the inner circumference of shell  38 . Wall  48  has on its outside a recess  49  for receiving bodies  15 . Recess  49  is formed by individual recesses which are circumferentially distributed for centering reservoir  5 . Recess  49  may instead be a continuous annular groove about axis  10  for rotating reservoir  5 . Each body  15  is continuously supported on recess  49  at least over a large spherical circle up to plate  18 . Plate  18  fullfacedly supports on the outer end face of wall  48  and up to the driver elements  19  either about each individual recess or on both sides of groove recess  49 . Also member  32  axially supports on this outer end face. 
     The inside of wall  48  forms an abutment  52  for a return or compression spring  59  which is significantly stronger and permanently higher pretensioned than spring  33 . Spring  59  engages bearing  52  in being radially centered. A tubular casing  53  of closure  9  protrudes radially within bearing  52  beyond the inside of wall  48  and in direction  13 . A hollow projection  54  protrudes beyond the outside of wall  48  and is a spigot of coupling  46 . The star-shaped outer circumference of spigot  54  is provided with the coupling&#39;s resilient catch members which engage the inner circumference of member  32 . Member  32  is either in one part with base body  4  or axially plugged and positionally locked without motion play on spigot  54  with a snap connector. This connector may simultaneously be a rotation bearing for rotating member  32  relative to body  4 . 
     A movable closure and valve element  55  is located inside the free end of casing  53 . Ball  55  is urged against its valve seat of housing  53  by a spring  56 . The housing space of shells  53 ,  54  receives parts  55 ,  56  and forms a duct, which like shells  53 ,  54  is located in axis  10 . This duct connects means  8  to duct  42 . Shell  51  is surrounded by an outer shell  58  with a spacing from wall  48 . Shells  51 ,  58  are radially spaced. Shell  88  also permanently supports on unit  2 . Spring  59  is located within shells  51 ,  58 . 
     The mutually opposed ends of shells  38 ,  58  provide drive or dragging means  60 . The free end of shell  38  is a driver  61  and the shoulder  62  on the opposing end of shell  58  is the associated abutment. The inner circumference of shell  38  is sealingly guided at the outer circumference of body  4 . In rest position faces of the driver and shoulder  61 ,  62  are mutually spaced by force of spring  33 . This spacing corresponds to the operating stroke of piercing member  20  and rotational mechanism  30 . 
     Like unit  3  also unit  2  forms a cup or housing from an end wall  63  and two nested shells  64 ,  65  which are radially interspaced and protrude from wall  63  only in direction  12 . 
     The free end of inner shell  65  forms piston  66  or a piston lip which slides on the inner circumference of shell  51  up to wall  48 . A valve casing  67  protrudes in axis  10  from bottom  64  only in direction  12  commonly with the associated parts of an inlet valve. Thus the means  8  form a compressing air pump  50 , namely a thrust piston pump. On the return stroke pump  50  resucks air from without through ball or pressure relief valve  67 . The outside of wall  63  forms the other handle  69  which for actuation is gripped commonly with handle  28  only single-handedly. 
     A valve control  70  is included for opening valve  9  irrespective of the stroke path of mechanisms  20 ,  30 ,  60  after a predetermined pumping stroke. Valve  9  could also open upon a predetermined overpressure in the pump chamber. Valve control  70  comprise in the axis of the member  55  a mandrel  71  which freely protrudes from parts  63 ,  67  in direction  12 . Towards the end of the pump stroke mandrel  71  dives into the inlet opening of housing  53 , abuts against and then drags ball  55  over a small opening stroke. Opening member  71  in this case is snap-mounted with a cap onto the free end of casing  67  to close this end. 
     Units  2 ,  3  are positively prevented from mutual withdrawal by a lock and a snap connector  73 . Units  2 ,  3  are positively prevented from mutual rotation about axis  10  by a rotation lock  74 . Also units  2 ,  3  are prevented from mutual withdrawal by snap lock  75 . Therefore, shell  64  has at its free end a thickened edge bead  76  which continuously extends about the inner circumference of shell  64 . On its outer circumference, bead  76  forms interspacedly protruding snap and anti-rotation members of locks  73 ,  74 . For these members the inner circumference of shell  37  has grooves or locking recesses  74 . Thus, at the free end of shell  37  and between the side flanks of each groove, a radially inwards protruding snap member  77  of lock  73  is formed. For lock  75  shell  58  has at its free end a snap member  78  which protrudes beyond its outer circumference. Member  78  slides circumferentially continuously and sealingly on the inner circumference of shell  64 . Member  76  thus forms counter-members for three locks  73  to  75 . 
     Between the circumferences of shells  51 ,  58  a narrow annular groove is formed. Both shells may be permanently supported with radial pretension on their counterfaces  66 ,  64 . Same applies also to the relation of shells  37 ,  64 . On the pump stroke shells  51 ,  58  dive into annular chamber  68  between shells  64 ,  65 . At its bottom chamber  68  is bounded by transverse ribs which form a stop for the end of the pump stroke. 
     Parts  63  to  67  and  69  of unit  2  are made in one integrally formed part. Same applies to parts  36  to  39 ,  77  of unit  3  and to parts  48 ,  49 ,  51  to  54 ,  57 ,  58 ,  78  of unit  4 . On unit  3  and in addition to parts  22  to  26 ,  28 ,  29  also parts  33 ,  40  may be integral to the one part body. 
     On actuation, the opening stroke, the pump stroke and the idle stroke of mechanisms  29 ,  30 ,  60  are commonly implemented. Before the rotational motion of mechanism  30  is completed, a spiked end  25  has already axially punctured the closure  16 . Thus the further rotation up to axis  11  causes a transverse motion between spike  25  and closure  16  to better open the sealed caps  15 . At the end of this stroke, spike  25  has not fully reached the bottom of chamber  14  while its inlet opening is located totally within chamber  14 . Then mechanism  60  drags unit  4  synchroniously with unit  3  relative to unit  2 . Thus, air is pretensioned in the pump chamber with valve  9  closed. Following the largest section  82  of pumping stroke  81  spigot  71  drags ball  55  synchronously into the opening position. Thus, the compressed air escapes valvelessly through duct  56  up to outlet  7  as described. Thereby member  76  passes over faces  61 ,  62 . At the end of the stroke member  76  is located within the annular groove which is bounded by parts  36  to  38 . On release of handle  28 ,  69  the mechanisms  9 ,  20 ,  30 ,  40 ,  50 ,  60 ,  70  return into their starting positions simultaneously under the force of springs  33 ,  56 ,  59 . Then unit  4  needs not to be limited in its axial movement relative to unit  3 . On the return motion valve  67  opens so that air is drawn in. Reservoir  5  need not execute a rotational motion during the return motion. 
     After all medium portions of reservoir  5  are discharged unit  6 , as shown in FIG. 1, may be tilted open. Thereby parts  21 ,  25 ,  29 ,  31 ,  36 ,  40  follow to make parts  5 ,  32 ,  48 ,  49  freely accessible from above. Thus according to FIG. 1 reservoir  5  may be removed upwards or inserted in direction  13 . All components cited may be injection-molded from plastic materials. All properties and effects may be provided precisely as described, or merely substantially or approximately so and may also greatly deviate therefrom depending on the particular requirements. The spacing between handles  28 ,  69  may equal the largest outer diameter of dispenser  1 . Expediently each of these dimensions amounts to maximally 70 or 60 mm, the dimensional relationships as shown being particularly favorable. Units  3  to  6  are particularly easy to assemble. Unit  3  overengages units  2 ,  4  and unit  2  overengages unit  5  in each case at the outer circumference to provide a lid.