HK1115785B - Cosmetic product replacement unit and a set consisting of a cosmetic product replacement unit of this type and a plurality of base stick modules - Google Patents

Description

Cosmetic product changing unit and kit comprising same and multiple cosmetic stick basic modules

Technical Field

The invention relates to a cosmetic product changing unit for a cosmetic stick base module of a cosmetic stick, comprising: a replacement case in which refill (refill ) for cosmetic is contained; a lid attached to the exchange housing, which lid seals a refill extension for the refill within the exchange housing, wherein the refill forms a push connection with a piston guided in the exchange housing. The invention also relates to a kit comprising such a cosmetic product changing unit and a plurality of cosmetic stick base modules.

Background

Common cosmetic changing units are well known in the existing public use. Once the cosmetic product has been used up or cannot be used again, the known cosmetic product changing unit is used to replace the corresponding cosmetic stick unit, which, together with the basic stick module, reconstitutes the complete cosmetic stick.

The cosmetic product replacement units known in the prior art are expensive to manufacture.

Disclosure of Invention

It is therefore an object of the present invention to provide a cosmetic product replacement unit of the type mentioned at the outset, such that the manufacturing costs of the cosmetic product replacement unit are reduced.

According to the invention, this object is achieved by a cosmetic product changing unit having a piston connection to a piston for cooperation with a matching push rod connection of a piston push rod as part of the feed device of the basic module of a cosmetic stick for extending the refill, the piston connection being designed for bringing the piston push rod into pushing connection with the piston and for positioning the piston push rod on the side of the piston remote from the refill.

According to the invention, it has been found that it is not necessary to install the mechanical operating components of the feed device of the cosmetic stick in the cosmetic product changing unit. These operating components of the feed device are completely omitted in the cosmetic product changing unit according to the invention and are all mounted in the stick base module. The stick changing unit is simplified in structure and accordingly made economical and efficient. The cosmetic product replacement unit can be filled, stored and sold separately from the stick base module including the feeding device. The stick base module may be formed into a complete stick upon arrival at the customer's hand or prior to shipment. The use of a replacement unit makes it possible to construct a high-quality mechanism for the feeder that can be sold at a suitable price. Such mechanisms may be made of, for example, anodized aluminum. The high-quality mechanism can be used repeatedly, i.e. the used cosmetic stick unit is replaced by a new replacement unit each time and is connected to the feeding device of the basic module of cosmetic sticks. The cosmetics in the replacement unit may also be different, in particular in their size, for example the diameter of the refill. Thus, the consumer can re-load various cosmetic products, for example, different colors and refill diameters, by purchasing only one stick base module, without having to purchase an entirely new stick base module each time.

The refill may be securely held in a cup-shaped seat in the piston.

A cover seals the replacement housing on the side where the piston connection is located so that the piston is protected by the cover for storing the replacement unit.

The connection means forming a bayonet connection or a snap-in connection is both reliable and convenient for the end user to use. Another object of the invention is to use a replacement unit with a better overall performance without complex feeder components.

According to the invention, this object is achieved by a kit comprising a cosmetic changing unit and a plurality of cosmetic stick base modules with a cosmetic feeding device, the cosmetic changing unit having a piston connection to a piston for cooperation with a matching plunger connection of a plunger as part of the feeding device of the cosmetic stick base modules for extending the refill, the piston connection being designed for bringing the plunger into pushing connection with the piston and for positioning the plunger on the side of the piston remote from the refill; the feeding means of the stick base modules of said plurality of types differ in their mechanical operating principle.

According to the invention, we have found that the type and manner of the mechanical structure of the operating parts of the feeding device can be freely chosen, since the exchange unit no longer has operating parts of the feeding device for extending the refill. The replacement unit can thus be used with cosmetic stick base modules which differ in their mechanical operating principle. The only critical requirement is the suitability of the connection between the replacement unit and the stick base module.

The feed device of one of the stick base modules comprises, in addition to the piston pusher: an actuating push rod in pushing connection with an actuating element at an end of the actuating push rod opposite to the refill projection, wherein the actuating push rod is in pushing connection with the piston push rod through a pair of stops consisting of a first stop positioned on one of the two push rods and a plurality of second stops longitudinally distributed along the other of the two push rods at equal intervals; wherein a stop alternating device for extending the refill, the first stop alternating between a second instantaneous one of the second stops that instantaneously cooperates with the first stop and an axially adjacent second target stop, the stop alternating device comprising: a drive body connected to the actuating ram; at least one ramp (ramp) fastened to the casing and cooperating with the drive body, the ramp having a slope such that, when the actuation thrust rod is in the actuation position, the first stop disengages from the instantaneous stop as soon as the drive body advances by a distance at least equal to the distance between two adjacent second stops; a preload spring (preload spring) which pretensions the actuating push rod relative to the housing in the non-actuated rest position in which the actuating element is pushed out of the housing, which feed device makes it possible to feed in an easy and reliable manner.

The arrangement of the stops, i.e. the first stop on the actuator tappet and the second stop on the piston tappet, allows the structure of the feed device to be manufactured at low cost. Alternatively, the first stop may be provided on the piston pusher and the second stop may be provided on the actuator pusher.

The drive body comprises the first stop, so that the feed device is compact in construction, because the functions of "ramp guide" and "first stop" are compactly combined on the drive body.

The contact between the push rods is such that relative sliding movement by the push rods causes the actuating push rod to return from the actuating position to the rest position without the piston push rod being axially displaced relative to the housing as a result, thereby ensuring that the piston push rod is not undesirably entrained as the actuating push rod returns from the actuating position to the rest position. This fixing of the piston tappet is further enhanced by the appropriate friction effect of the piston tappet by being guided through a passage opening of a component fixed to the housing.

The pre-loaded spring, which is constructed as a plastic spring, simplifies the construction of the cosmetic stick. The plastic spring can also be formed as an injection molded part and have multiple functions. The plastic spring is therefore distinguished by an intermediate bottom in which there is a passage opening for guiding the movement of the piston tappet. When using a plastic preloaded spring, it is possible in particular to use a snap-fit joint between the cosmetic housing part, i.e. the refill housing part, and the feed housing part, the opening made at this connection being not visible from the outside. No metal spring is required.

The ramp integrally formed on the preload spring also improves the compactness of the construction, since functional integration is again employed.

The guide means for guiding the relative axial movement of the two push rods enable a defined and reliable relative movement of the two push rods during the feed motion.

The feed device of the further stick base module comprises, in addition to the piston pusher, an actuator wheel, a part of the circumference of which protrudes from the stick housing of the stick base module, which actuator wheel is in pushing connection with the piston pusher via a steering gear arrangement. Such a feeding device is particularly simple to manufacture and allows continuous feeding of refills. The actuation of the feeding device is also simple.

In the construction of the feed device in which the journal of the actuator wheel is snapped into a catch of a housing part which surrounds the actuator wheel and which is itself connected, in particular snap-fitted, to the stick housing, it is possible in particular to use a single part which is easy to mould. These parts can be conveniently made as injection molded parts.

Drawings

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

FIG. 1 shows a perspective view of a cosmetic stick;

FIG. 2 shows a longitudinal cross-sectional view of the cosmetic stick of FIG. 1;

FIG. 3 shows an exploded view of all the components used to assemble the cosmetic stick of FIG. 1;

FIG. 4 shows a perspective view of a cosmetic exchange unit for the stick base module of the cosmetic stick of FIGS. 1-3;

FIG. 5 shows an axial longitudinal section of the cosmetic exchange unit of FIG. 4;

FIG. 6 shows a cosmetic product replacement unit similar to FIG. 1;

FIG. 7 shows a perspective side view of another cosmetic stick with a different stick base module having a cosmetic feeding device with a mechanical operating principle different from the feeding device of the stick base module of the cosmetic stick of FIG. 1;

FIG. 8 shows an axial longitudinal section of the cosmetic stick of FIG. 7; and

fig. 9 is a view similar to fig. 3 showing a single component constituting the cosmetic stick of fig. 7.

Detailed Description

The cosmetic stick 1 has a stick housing 2 with a cosmetic housing portion 3 and a feed housing portion 4. The cosmetic stick housing 2 with the cosmetic housing part 3 and the feed housing part 4 is made of SAN-ABS. The cosmetic housing part 3 has a conical housing body 5 which is covered by a cover 6, for example, when the cosmetic stick 1 is stored. Fig. 2 shows the cap 6 pushed onto the conical housing body 5, the cap 6 resting on a circumferential flange 7 of the conical housing body 5. The conical housing body 5 and the cover 6 are slightly undercut (not shown in detail) ensuring that the cover 6 is held and fastened to the conical housing body 5 by a positive fit when resting against the circumferential flange 7. While the user easily removes the cap 6 from the conical housing body 5.

The conical housing body 5 has, adjacent to the circumferential collar 7, a bayonet section 8 which, when the conical housing body 5 is assembled, faces the feed housing part 4 and snaps into a corresponding inner circumferential recess in the feed housing part 4. The bayonet section 8 forms, together with a corresponding bayonet socket in the feed housing part 4, a bayonet catch for joining the two housing parts. Latches (latching) or snap-in connections (snap-in connection) may also be used instead of snaps.

A refill 9 for a cosmetic product is provided in the conical housing body 5. The refill 9 may extend out of the conical housing body 5 from a refill extension or filling port 10. A feed device 11, which is described in more detail below, is accommodated in the feed housing portion 4 for extending or retracting the refill 9.

The refill 9 is in a push connection with a piston 12 guided in the conical housing body 5. Here, refill 9 is held in a cup-shaped seat of piston 12. The refill had a diameter of 6 mm. The inner diameter of the cup-shaped base of the piston 12 corresponds to the diameter of the refill. Refills may have other diameters. In particular the diameter of the refill may also be 8 mm. A piston connecting member 13 having an outer diameter smaller than that of the rest of the piston 12 is integrally formed with the piston 12. A circumferential seat is formed in the sleeve-shaped connecting piece 14 of the piston ram 15, which seat fits into the bayonet section of the piston connecting piece 13. The piston pusher 15 is made of POM. A piston pusher 15 is in pushing connection with the piston 12 and is located on the side of the piston 12 remote from the refill 9. A firm positive-locking connection is formed between the piston 12 and the feed device 11 comprising the piston pusher 15 via the bayonet connection formed by the connecting pieces 13 and 14.

The feed device 11 also has an actuating ram 16. The actuating ram 16 forms a push connection with the piston ram 15. The actuating push rod 16 is made of POM. The push connection is formed by a pair of stops consisting of a first stop 17 positioned on the actuating push rod 16 and a plurality of second stops 18 distributed equidistantly and continuously in the axial direction of the piston push rod 15. In the feed position shown in fig. 2, the first stop 17 of the actuating ram 16 cooperates with the second stop 18, which is furthest to the left in fig. 2, so that the refill 9 is in the starting position and the piston 12 is completely retracted into the stick housing 2.

In general, there are two rows of second stops 18 located at the same height, between which the actuating push rod 16 moves.

When the actuating push rod 16 is moved between the two rows of second stops 18 to the end of the piston push rod 15 facing the stop point 19, the two push rods 15, 16 are guided towards one another so that the two push rods 15, 16 can move relative to one another in a defined manner. This guidance is achieved by the cross-sectional configuration of the adjacent portions of the push rods 15, 16. The guide device is a T-shaped guide groove.

The actuating ram 16 has a circumferential contact flange 19 on the side remote from the piston 12. The outer diameter of the circumferential contact flange 19 corresponds to the inner diameter of the feed housing part 4. The free end 20 of the actuating ram 16 adjacent to the circumferential contact flange 19 has an operating button 21 which acts as an actuating element, latch or snap on to the free end 20. The operating button 21 projects from the end of the feed housing portion 4 opposite the refill 9, as does the operating button of a ballpoint pen. In the housing opening of the feed housing part 4, from which the operating button 21 projects, a sleeve-shaped plug 22 is inserted, through which the operating button 21 passes. The operation button 21 is made of SAN-ABS as with the plug 22. The inner end wall of the plug 22 rests against the circumferential contact flange 19 of the actuating ram 16. The side of the circumferential contact flange 19 opposite the plug 22 is stopped by a plastic preload spring 23. The plastic pre-load spring 23 is made of POM. The other free end of the plastic preloading spring 23 rests on an inwardly projecting circumferential flange 24 of the feed housing part 4. The circumferential flange 24 is located immediately adjacent to the dividing line between the feed housing part 4 and the conical housing body 5.

The plastic preloading spring 23 has an intermediate bottom 25 next to the end wall of the conical housing body 5 on which the free end of the bayonet section 8 is carried. The intermediate bottom 25 has an approximately rectangular passage opening 26 through which the piston tappet 15 passes.

The stop alternate device 27 is a component of the feeding device 11. To move the refill 9 forward, the stop rotation device rotates the first stop 17 between one of the second stops 18 that is momentarily engaged with the first stop 17 (also referred to as the second momentary stop) and another second stop 18 that is axially adjacent (also referred to as the target stop). The stop alternate device has a driver body 28 integrally formed on the free end of the actuating push rod 16 opposite the piston 12. The drive body 28 supports two first stops 17 at the same height on both sides, like wing wings.

A ramp 29 is engaged with the driver body 28. Said ramp 29 is designed in the middle bottom 25 of the plastic preload spring 23, which is fixed to the feed housing part 4. The ramp 29 is thus fixed to the stick housing 2.

The stop rotation device 27 further comprises a plastic preload spring 23.

The second stops 18, which are axially continuous and equidistantly distributed, are zigzag-shaped. The steep, in fact vertical flanks of the saw-tooth configuration form the second stop 18. Between these vertical wall portions is a sloping wall portion 30. The inclination of these inclined wall sections 30 with respect to the longitudinal axis of the stick housing 2 is sufficiently small that the two wings of the drive body 28 can slide on the inclined wall sections 30 in the direction opposite to the feed direction without the piston push rod 15 being axially displaced with respect to the stick housing 2 as a result.

The cosmetic stick is assembled according to the following steps:

first, the plastic preload spring 23 is pushed into the feed housing part 4 until it meets the stop flange 24. A ridge on the plug side of the feed housing part 4, which cooperates with a corresponding groove at the periphery of the plastic preloading spring 23, ensures that the plastic preloading spring 23 can only be pushed into the feed housing part 4 in a predetermined orientation. The inner diameter of the feed housing part 4 is matched to the outer diameter of the plastic pre-load spring 23, thereby facilitating clamping of the two parts together in the final assembly position. The piston pusher 15 is then introduced into the plastic pre-load spring 23 from the left-hand side of fig. 2. The position and cross section of the passage opening 26 now only allow the introduction of the plastic preload spring 23 in the correct orientation of the piston push rod 15. The piston push rod 15 is introduced into the plastic preload spring 23 until the push rod connection 14 of the piston push rod 15 rests against the intermediate bottom 25 of the plastic preload spring 23. The actuating push rod 16, which is already provided with the operating button 21, is then inserted from the right-hand side of fig. 2 into the feed housing part 4 and guided into the mating guide of the piston push rod 15.

When the actuating push rod 16 is pushed into the feed housing part 4, the first stop 17 of the actuating push rod 16 initially engages the rightmost second stop 18 of the piston push rod 15 as shown in fig. 3. During further insertion, the actuating ram 16 pushes the piston ram 15 in front of it until the driver body 28 of the actuating ram 16 moves onto the ramp 29. At this time, the first stop 17 is disengaged from the second momentary stop 18. The piston tappet 15 can then be pushed back to the right in fig. 2 until the starting position is reached. The plug 22 is then pushed and latched into the feeder housing portion 4. At this point, the plastic preload spring is slightly tensioned between the circumferential flange 19 and the circumferential flange 24.

When the operating button 21 is actuated, i.e. pushed into the stick housing 2, the actuating ram 16 initially advances the piston ram 15 by a distance at least equal to the distance between the two second stops 18, by virtue of the engagement of the first stop 17 with the second momentary stop 18. After advancing this distance, the driver body 28 moves to such an extent on the ramp 29 that the first stop 17 disengages from the second momentary stop 18. Therefore, the piston rod 15 does not advance any further regardless of whether the operation button 21 is pushed further into the cosmetic stick housing 2. When the operating button 21 is released, the operating button is pushed back into the rest position shown in fig. 2 due to the pretensioning of the plastic preloading spring 23 until the circumferential flange 19 comes to rest against the plug 22 again. During this push-back action, the driver body 28 slides on the inclined wall portion 30 of the piston pusher 15. At this point, the piston tappet 15 is not axially displaced relative to the cosmetic stick housing 2, so that in the rest position of the operating button 21, the first stop 17 can then engage with the second target stop 18 which is axially adjacent to the previous second momentary stop 18, to be precise axially adjacent on the right-hand side in fig. 2.

Fig. 4 to 6 show a cosmetic product changing unit 31 for a cosmetic stick base module 32 of the cosmetic stick 1. The stick base module 32 comprises all the components of the cosmetic stick 1 except the cosmetic housing part 3, the piston 12 and the refill 9.

The cosmetic product replacement unit 31 has a replacement housing 33 identical to the cosmetic product housing part 3, i.e. having a conical housing body 5 and a cap 6. A sealing cover 34 attached to the replacement housing 33 and fixed thereto with a snap fit seals the replacement housing 33 on the side of the piston 12. The sealing cover 34 is made of polypropylene (PP). A support element 35 made in one piece with the bottom of the sealing cap 34 in the region of the longitudinal axis of the stick housing is intended to be positioned in contact with the piston connecting element 13 in a defined manner. In the replacement housing 33 of the cosmetic product replacement unit 31, a refill 9 and a piston 12 are placed, which have the same orientation and position relative to the conical housing body 5 as they have in the cosmetic housing part 3 of the cosmetic stick 1.

The cosmetic-exchange unit 31 is assembled as follows:

first, the piston 12 is pushed into the conical housing body 5, guided by a guide seat opening, specifically from the side of the conical housing body 5 where the bayonet section 8 is located. A ridge 36 made integral with the outer wall of piston 12 moves in an axial groove in the inner wall of conical housing body 5, preventing piston 12 from twisting in conical housing body 5. Latching, which is constituted by mating snap-in elements on the piston 12 and the conical housing body 5, respectively, indicates the assembled end position of the piston 12 in the conical housing body 5. The sealing cap 34 is then fitted to the conical housing body 5 via a bayonet connection. The refill 9 is then introduced into the seat of the piston 12 and finally the cap 6 is fitted over the conical housing body 5.

To replace the cosmetic housing part 3 with a new cosmetic replacement unit 31 when the refill 9 is used up, the bayonet connection between the cosmetic housing part 3 and the feed housing part 4 is released. The sealing cap 34 is removed from the cosmetic product replacement unit 31 and the replacement unit 31 is attached to the feed housing portion 4 of the cosmetic stick 1. In this way, a bayonet connection is simultaneously formed between the exchange housing 33 and the feed housing part 4, and between the piston connector 13 and the push rod connector 14. The cosmetic stick 1 with the new refill 9 is then ready for use again.

Fig. 7-9 show another cosmetic stick that can also use cosmetic replacement unit 31. Components that are the same as those previously described in connection with fig. 1-6 are designated with the same reference numerals and will not be described again in detail.

The stick base module 37 of the stick shown in fig. 7-9 comprises a feed device 38 with an actuating wheel 39. A portion of the actuator wheel periphery projects from the feed housing portion 40 of the cosmetic stick 1 shown in fig. 7-9. Like the feed housing portion 40, the actuator wheel 39 is made of SAN-ABS. The journals 41 on either side of the actuator wheel 39 have formed thereon gears 42 integral with the actuator wheel 39. According to fig. 7-9, the gear 42 meshes with two rack portions 43 of a piston push rod 44 of the cosmetic stick 1, which are parallel to each other. The piston pusher 44 is made of POM. A push rod coupler 14 having the same structure as the push rod coupler 14 of the embodiment shown in fig. 1-3 is integrally formed with the rack portion 43 opposite the piston 12. The piston push rod 44 likewise passes through the passage opening 26 in the plastic preload spring 23.

The journal 41 of actuator wheel 39 is snapped into a snap seat 45 of a housing portion 46. The housing portion 46 is made of SAN-ABS. The housing portion 46 surrounding the actuator wheel 39 is also snap-locked in a mounting seat of the feed housing portion 40.

To assemble the cosmetic stick 1 shown in fig. 7-9, the plastic preload spring 23 is first introduced into the feed housing portion 40, as described in connection with the assembly of the cosmetic stick 1 shown in fig. 1-3. The plug 22 is then pushed into the feeder housing part 40 from the right-hand side of fig. 8 and snapped or snapped therein. The piston pusher 44 is then introduced into the plastic preload spring 23 through the passage 26 from the left hand side of fig. 8. The actuator wheel 39 is snapped into a snap seat 45 of the housing portion 46 and then the housing portion 46 is snapped into a mounting seat of the feed housing portion 40. By rotating the actuator wheel 39, the refill 9 can be pushed out of the filling opening 10 or the refill 9 can be retracted into the stick housing 2.

In both embodiments, i.e. the embodiment shown in fig. 1 to 3 in which the refill 9 is pushed out with the operating button 21 and the embodiment shown in fig. 7 to 9 in which the refill is pushed out with the actuating wheel 39, the cross-sectional shape of the piston pusher 15 and 44 is matched to the internal cross-sectional shape of the passage opening 26 of the plastic preloading spring, so that the piston pusher 15 and 44, respectively, rubs when passing through the passage opening 26. In the embodiment shown in fig. 1-3, this frictional force is greater than the frictional force between the piston pusher and the actuation pusher 16, so that the actuation pusher 16 does not undesirably drag the piston pusher 15 when the actuation pusher 16 returns from the actuation position to the rest position. In the embodiment of fig. 7-9, the frictional interaction between the piston pusher 44 and the inner wall of the port 26 is such that in use a certain axial pressure is exerted on the refill 9, which would otherwise result in the refill 9 being undesirably pushed back into the wand housing 2.

In a variant (not shown) of the cosmetic stick 1 shown in fig. 7-9, the actuator wheel 39 is not provided with a gear wheel 42 on both sides but with two rotationally engaging wheel portions parallel to each other, between which a gear portion is provided that is rotationally engaged with the two wheel portions. The gear portion is then engaged with the associated rack portion of the piston push rod of the cosmetic stick of this modification. Unlike the piston pusher 44 of the cosmetic stick shown in fig. 7-9, the piston pusher of this modification has only one rack portion. A similar actuator wheel with two wheel portions is known from EP0714638B1, in which the actuator wheel is used for applying dental filling material.

Claims (15)

1. A kit, comprising:

cosmetic product replacement unit (31) for a cosmetic stick base module (32; 37) of a cosmetic stick (1), comprising:

a replacement housing (33) in which a refill (9) for a cosmetic product is present,

-a lid (6) attached to the replacement housing (33) and for sealing a refill projection (10) of a refill (9) in the replacement housing (33),

-wherein the refill (9) forms a push connection with a piston (12) guided in a replacement housing (33),

the cosmetic product changing unit has a piston connection (13) connected to the piston (12) for engaging with a matching push rod connection (14) of a piston push rod (15; 44) as part of the feed device (11) of the cosmetic stick base module (32; 37) for extending the refill (9), the piston connection (13) being designed to bring the piston push rod (15; 44) into pushing connection with the piston (12) and to position the piston push rod on the side of the piston (12) remote from the refill (9), and

a plurality of cosmetic stick base modules (32; 37) having feed means (11; 38) for cosmetic products (9) whose mechanical operating principle differs from each other.

2. Kit according to claim 1, characterized in that the feed means (11) of one of the stick base modules (32) comprises, in addition to the piston pusher:

-an actuating push rod (16) which forms a push connection with an actuating element (21) located at the end of the actuating push rod (16) opposite the refill projection (10),

-wherein the actuating push rod (16) is in push connection with the piston push rod (15) via a pair of stops comprising:

-a first stop (17) on one of the piston push rod (15) and the actuating push rod (16), and

-a plurality of second stops (18) distributed axially consecutively and equidistantly along the other one of the piston push rod (15) and the actuating push rod (16),

-a stop rotation device (27) with which the first stop (17) is rotated between a second instantaneous stop of the plurality of second stops (18) which instantaneously cooperates with the first stop (17) and an axially adjacent second target stop to move the refill forward, the stop rotation device comprising:

-a drive body (28) connected to the actuating push rod (16),

-at least one ramp (29) fastened to the housing (2) and cooperating with the drive body (28), the ramp having a slope such that, in the actuated position of the actuating push rod (16), the first stop (17) is disengaged from the second instantaneous stop when the drive body (28) advances by a distance at least equal to the distance between two adjacent second stops (18),

-a preloading spring (23) which pretensions the actuating push rod (16) with respect to the housing (2) in the unactuated rest position, i.e. when the actuating element (21) is pushed out of the housing (2).

3. The kit according to claim 2, wherein said first stop (17) is located on the actuator tappet (16) and said second stop (18) is located on the piston tappet (15).

4. A set according to claim 3, wherein the driver body (28) has a first stop (17).

5. Kit according to claim 2, characterized in that a contact portion (30) is formed between the piston tappet (15) and the actuating tappet (16) such that a relative sliding movement of the piston tappet (15) and the actuating tappet (16) causes a return of the actuating tappet (16) from the actuating position to the rest position without the piston tappet (15) thereby being axially displaced relative to the housing.

6. A kit according to claim 2, characterized in that said preloading spring (23) is a plastic spring.

7. Kit according to claim 2, characterized in that said ramp (29) is made in one piece with the preloading spring (23).

8. A set according to claim 2, characterized in that the piston pusher (15) and the actuator pusher (16) have a guide means for guiding the axial movement of the piston pusher (15) and the actuator pusher (16) relative to each other.

9. Kit according to claim 1, characterized in that the feed means (38) of the other stick base module (37) comprise, in addition to the piston pusher (44):

-an actuating wheel (39) with a part of its periphery protruding from the stick housing (40) of the stick base module (37), which actuating wheel is in a push connection with the piston pusher (44) via a steering gear arrangement (42, 43).

10. Kit according to claim 9, characterized in that the journal (41) of the actuator wheel (39) is engaged in a catch (45) of a housing part (46), which housing part (46) surrounds the actuator wheel (39) and is itself connected to the stick housing (40).

11. Kit according to claim 10, characterized in that the housing part (46) snaps into the stick housing (40).

12. A kit according to claim 1, wherein the refill (9) is held in a cup-shaped seat in the piston (12).

13. Kit according to claim 1, characterized by a cover (34) which seals the exchange housing (33) on the side where the piston connection (13) is located, thereby storing the exchange unit (31).

14. Kit according to claim 1, characterized in that the piston connector (13) and the plunger connector (14) form mating parts of a bayonet connection.

15. Kit according to claim 1, characterized in that the piston connector (13) and the plunger connector (14) form mating parts for a quick snap connection.