EP0757525B1 - Refillable container for delivering a spreading compound, in particular an adhesive compound - Google Patents

Abstract

PCT No. PCT/EP95/01435 Sec. 371 Date Nov. 27, 1996 Sec. 102(e) Date Nov. 27, 1996 PCT Filed Apr. 18, 1995 PCT Pub. No. WO95/28857 PCT Pub. Date Nov. 2, 1995A container (1) for applying a spreadable product (4) such as an adhesive, having an inner tube (3) that is removably mounted in an outer tube (5). A piston-like plunger (12) is disposed in the inner tube (3) and is moveable axially within the inner tube (3), for moving the spreadable material therein to a position projecting from the tubes, for application to a surface. A removable closure cap is provided to enclose the spreadable material within the two tubes.

Description

The invention relates to a container for dispensing a spreadable Composition, in particular adhesive, with a coating composition containing the spreadable composition removably arranged in an outer sleeve and at least on one side open inner sleeve, which can be penetrated by a screw spindle Pistons and fasteners for locking them in the outer sleeve having. The screw spindle and the piston form interacting means to deliver the spreadable hate. By turning the into an internal thread of the piston engaging screw spindle by means of outside the Outer sleeve arranged actuator, in particular a manually operated Knurled nut, is the spreadable mass in the container can be moved longitudinally axially with a fixed relative position of the outer sleeve and inner sleeve to each other.

A refillable container is a refill cartridge for glue sticks from the DE 41 16 581 A1 known. The reusable outer sleeve contains one Screw spindle that turns when turning one at the closed end of the container arranged knurled nut also rotates. The exchange part, so the inner sleeve, contains the piston with the internal thread into which the Screw engages to move the piston towards the open, from the knurled nut opposite end of the tubular container move and thus push the adhesive out of the open end.

The known container is a refill container for one for gluing Paper provided glue stick provided. For refilling the container the procedure is as follows. The knurled nut is turned until it no longer engages in the internal thread of the piston. The emptied The inner sleeve is then pulled out of the outer sleeve together with the piston. Then you put a new one filled with the adhesive and one Inner sleeve containing pistons with a central threaded bore so far into the open end of the outer sleeve until the one firmly attached to the outer sleeve The upper end of the screw spindle abuts the internal thread of the piston. The screw spindle is screwed in by turning the knurled nut the internal thread of the piston and into the adhesive. The moves Inner sleeve further into the outer sleeve until an end position is reached becomes. There, point-like points attached to the inner wall of the outer sleeve snap Studs in corresponding punctiform depressions on the outer wall of the inner sleeve a. This locking connection fixes the inner sleeve within the Outer sleeve so that the inner sleeve neither move in the longitudinal direction can rotate relative to the outer sleeve. To remove the adhesive then turned the knurled nut in the opposite direction so that the piston moves towards the open end of the inner sleeve and the Squeezes out the adhesive.

A disadvantage of the known container is the time-consuming screwing movement when using a new refill cartridge. Therefore, the user is often not ready to close the emptied container with a new refill cartridge populate, but will throw away the container as a whole and a new one use whole container. The pursued with the well-known container The purpose of reducing waste is therefore often not achieved.

The invention is therefore based on the object in a container type mentioned at the outset to facilitate the replacement of the inner sleeve considerably.

This object is achieved in that the screw rotatable on the inner sleeve in a position penetrating the piston is attached and a, especially protruding from the inner sleeve, Has connecting part, which is releasably connected to a corresponding connecting part the actuating means can be coupled in a rotationally fixed manner.

In contrast to the prior art mentioned, the screw spindle is not part of the outer sleeve, but part of the inner sleeve and thus the part to be replaced. When replacing an empty inner sleeve there is therefore a new inner sleeve filled with the spreadable mass a screwing movement is not necessary. It is enough after removal of the emptied inner sleeve, simply insert the new inner sleeve into the outer sleeve insert until the connecting parts of the outer sleeve and inner sleeve together are connected.

This very quick and easy exchange of the inner sleeve leads to a significantly reduced amount of waste, although that is to be exchanged and therefore part that can only be used once contains more material than in the prior art. Because the consumer will benefit from the simplified replacement of the inner sleeve no longer the entire container with outer and inner sleeve than Throw away everything.

To reduce the amount of waste, it is advantageous if the inner sleeve has a thin wall. It is proposed that the inner sleeve is a Wall thickness of 0.1 to 1 mm, in particular from 0.3 to 0.8 mm. The minor Thickness of the hand of the inner sleeve has the further advantage that the inside the inner sleeve remaining for filling with the spreadable Mass provided usable space is particularly large.

The detachable, non-rotatable connection of the inner sleeve to the outer sleeve can be done in different ways. In an advantageous embodiment of the invention protrudes the connector attached to the inner sleeve out of the inner sleeve and has one in the longitudinal direction of the inner sleeve variable cross-sectional area. Such an embodiment can be found in the second embodiment described below with reference to Figures 3 to 5 the invention.

In a further preferred embodiment of the invention, the fastening means as at least one facing away from the open side, resiliently flexible lip. The one attached to the inner sleeve Lip, which can also be called a tab, is used for detachable non-rotatable connection of the inner sleeve with the outer sleeve. Such Embodiment is further below in the example of Figures 10 and 11 described. If several such lips are provided, which from the Stand out inner sleeve, these lips can be used as feet for the inner sleeve serve so that the filling of the inner sleeve with the spreadable Mass at the manufacturer is facilitated.

In a further preferred embodiment of the invention, the Piston an inner part with the internal thread for the screw spindle and a ring-shaped movable relative to it in the longitudinal axis of the inner sleeve the inner part arranged around the outer part. They are also means to limit the longitudinal movement of the outer part on the outer wall of the outer part and the inner wall of the inner sleeve in the area of their open In the end. When almost the entire spreadable mass is used up is, the piston abuts the limiting means with its outer part the inner wall of the inner sleeve. When turning the screw spindle the inner part of the piston is pushed out over the edge of the outer part and thus also the last remainder of the spreadable mass from the Inner sleeve pressed. A corresponding embodiment is further explained in more detail below with reference to FIGS. 7 to 9.

It is also proposed that the connecting parts of the inner sleeve and Actuator for axially displaceable but non-rotatable Connection are designed. One connector can, for. B. a square mandrel and the other connector an opening with a corresponding square cross section.

Finally, there is a one acting on the inner sleeve in the longitudinal direction Movable plunger proposed by the confirmation element is led outside. The plunger makes it easier to remove the used one Inner sleeve. To do this, press on the outward-pointing part of the plunger, so that the inner sleeve detaches from the outer sleeve and in the direction is moved to the open end of the outer sleeve. A corresponding embodiment The invention is illustrated below with reference to FIGS. 10 to 12 described in more detail.

Fig. 1

eine teilweise geschnittene perspektivische Ansicht einer ersten Ausführungsform des Behälters,

Fig. 2

eine teilweise geschnittene perspektivische Detailansicht in Richtung des Pfeils II in Fig. 1,

Fig. 3

eine teilweise geschnittene perspektivische Ansicht einer zweiten Ausführungsform des Behälters,

Fig. 4

eine perspektivische Ansicht von Außenhülse und Innenhülse des Behälters nach Fig. 3 vor dem Zusammenfügen,

Fig. 5

eine teilweise durchbrochene Detailansicht in Richtung des Pfeils V von Fig. 3,

Fig. 6

eine teilweise durchbrochene Ansicht einer dritten Ausführungsform,

Fig. 7

einen Schnitt entlang der Linie VII-VII in Fig. 6,

Fig. 8

eine Detailansicht des Kolbens nach Fig. 7 beim Erreichen seiner ersten Endposition,

Fig. 9

eine Figur 8 entsprechende Ansicht des Kolbens beim Erreichen seiner zweiten Endposition,

Fig. 10 und 11

ein viertes Ausführungsbeispiel im wesentlichen im Längsschnitt vor und nach dem Zusammenbau und

Fig. 12

eine teilweise durchbrochene perspektivische Detailansicht in Richtung des Pfeils XII in Fig. 11.

Embodiments of the invention are explained below with reference to drawings. Corresponding parts are provided with the same reference symbols in the respective figures. Show it

Fig. 1

2 shows a partially cut perspective view of a first embodiment of the container,

Fig. 2

2 shows a partially sectioned perspective detail view in the direction of arrow II in FIG. 1,

Fig. 3

2 shows a partially cut perspective view of a second embodiment of the container,

Fig. 4

3 shows a perspective view of the outer sleeve and inner sleeve of the container according to FIG. 3 before assembly,

Fig. 5

3 shows a partially broken detail view in the direction of arrow V of FIG. 3,

Fig. 6

a partially broken view of a third embodiment,

Fig. 7

6 shows a section along the line VII-VII in FIG. 6,

Fig. 8

7 shows a detailed view of the piston according to FIG. 7 when it reaches its first end position,

Fig. 9

8 shows a view corresponding to FIG. 8 of the piston when it reaches its second end position,

10 and 11

a fourth embodiment substantially in longitudinal section before and after assembly and

Fig. 12

a partially broken perspective detail view in the direction of arrow XII in Fig. 11th

The container designated 1 in the drawing comprises one one side 2 open inner sleeve 3 with spreadable mass 4, in particular Adhesive compound, and an outer sleeve 5, the inner sleeve 3 at least partially encloses.

The inner sleeve 3 is in the outer sleeve 5 by fastening means arranged on it 6, which in the assembled state of the container 1 Holding means 7 of the outer sleeve 5 cooperate, fixed in the outer sleeve 5. In the exemplary embodiment according to FIGS. 1 and 2, the fastening means exist 6 from keyhole-like recesses 9 in the lower edge the inner sleeve wall 8 and the holding means 7 from pins 10 on the inner wall the outer sleeve 5. The pins 10 form a with the recesses 9 Detachable, snap-in connection as soon as the inner sleeve 3 is complete is inserted into the outer sleeve 5.

In the inner sleeve 3 are longitudinally axially movable means 11 for metering Delivery of the mass 4 arranged. These means 11 are as one in the inner sleeve 3 closely fitted, on the inner wall of the inner sleeve 3 longitudinally formed along slidably movable piston 12, which centrally a has through opening 13 with screw thread.

The inner sleeve 3 provided as a refill container also has a the drive means 14 connected to the means 11, which is shown in FIGS Examples is designed as a screw 15, the bottom 16 of the Inner sleeve 3 is rotatably mounted about its longitudinal axis. The drive means 14 or the screw spindle 15 has a protruding from the bottom 16 and connecting part 17 accessible from the outside of the inner sleeve 3 on. The connector 17 has on its circumference parallel to the longitudinal axis of the Screw spindle 15 at least one corner edge. In the example according to FIGS. 1 and 2 the connecting part 17 is designed as a rod-shaped square.

The outer sleeve 5 consists of a housing 18 which comprises the inner sleeve 3. In the bottom 19 of the outer sleeve 5 is in a coaxial to the screw 15 formed an opening with the connecting part 17 of the inner sleeve 3 or the screw spindle 15 cooperating actuating means 21 rotatably mounted. The actuating means 21 is a hand-operated knurled nut 20 educated. The wall thickness of the housing 18 is chosen such that it a much greater stiffness than the wall 8 as a refill container provided inner sleeve 3. The housing 18 can therefore the actuation forces record which are exerted on the container 1.

The hand-operated knurled nut 20 has the outer sleeve in the middle 5 and the inner sleeve 3 side facing a raised, to the Screw 15 coaxial connector, which with a recess 22 is provided, which is complementary to the connecting part 17 of the inner sleeve 3rd or the screw 15 is formed. The knurled nut connector 20 is guided through the opening in the bottom 19 of the outer sleeve 5 and reaches behind the inside of the sleeve 19, so that the manually operable Randel nut 20 is rotatably attached to the bottom 19. In the outer sleeve 5 inserted inner sleeve 3 then engages the connector 17 of the screw 15 in the recess 22 or the opening of the connecting part of the Knurled nut 20, so that in this way the screw 15 to the Knurled nut 20 is coupled or can be coupled. By appropriate, a Slipping of the connecting part 17 in the recess 22 when the Knurled nut 20 prevents geometrical designs of recess 22 and connecting part 17 ensures that when turning Knurled nut 20 rotates the screw spindle 15 and thus the piston 12 open side 2 of the inner sleeve 3 moves. The inner sleeve 3 is with Using the fasteners 6 and 7 set on the outer sleeve, so that when the knurled nut 20 is actuated, there are no relative movements relative to one another To run. The piston 12 alone is relative to the sleeves 3 and 5 moves. Depending on the direction of rotation of the knurled nut 20, the piston in the Inner sleeve 3 moved up or down. With the piston the spreadable Mass 4 moves and occurs when the knurled nut 20 is actuated accordingly dosed out of the container 1.

To protect the spreadable mass from drying out on the outer sleeve 5 a cap 23 can be placed. The cap 23 has Fastening means 24 formed on the inside of the closure cap wall (see FIGS. 7 and 11) which, when the closure cap 23 is pushed on on the outer sleeve 5 with correspondingly complementary fasteners 25 of the outer sleeve 5 result in a snap connection.

In the following the use of the first embodiment of the described container of the invention. The one delivered to a consumer Container 5 normally has a spreadable mass 4 filled inner sleeve 3. After removing the cap 23, the spreadable mass 4 can be removed by the user the knurled nut 20 rotated relative to the container 1, whereby the piston 12 spreadable mass from the container 1 so that the spreadable Mass 4, for example adhesive, lip cream or the like a surface to be treated can be painted.

When the spreadable mass 4 consumes, so the inner sleeve 3 is emptied is, the inner sleeve 3 can simply from the container 1 or the outer sleeve 5 can be removed by pulling it out. The rest connection between the pins 10 and the keyhole-like recesses 9 is so set that the inner sleeve 3 relatively easily from the outer sleeve 5th can be removed. The part to be replaced consists of the inner sleeve 3, the piston 12, the screw 15 and the connecting part 17. After Removing the inner sleeve 3 with the attached parts can in the container 1 or the outer sleeve 5, a refill container inserted as a new inner sleeve 3, snapped in and in this way the container 1 reused will.

The relatively simple exchange of the inner sleeve 3, which requires little time, facilitates the use of the container 1 with the inner sleeves 3 as a refill container. Repeated use of the from the outer sleeve 5th and the hand-operated knurled nut 20 existing container 1 reduced the raw material consumption and the resulting amount of waste. For further reducing the material of the replacement part is the as Refill container provided inner sleeve 3 made very thin-walled. she has wall thicknesses of 0.1 to 1 mm, preferably 0.3 to 0.8 mm. Also the screw 15 can be made relatively thin, so that the amount of material, which is processed in the refill container 3, is relatively small.

The small dimensions of the wall 8 of the inner sleeve 3 and Screw 15 the further advantage that the inside of the inner sleeve 3rd or the outer sleeve 5 remaining, for filling with the spreadable Mass 4 intended usable space is particularly large.

Because the user due to the easier refilling than in the introduction to the description described refill system is more inclined to Using Tray 1 multiple times will total material usage reduced compared to the known refill system, although in the refill system according to the invention, the screw spindle is also replaced.

In the second embodiment of the container 1 according to FIGS. 3 to 5 are the fasteners 6 and the connecting part 17 of the inner sleeve 3 as formed a unit, that is summarized in one element. The connector 17 has one in the direction of the longitudinal axis of the screw spindle 15 not constant cross-sectional shape with a constricted part 26 and a adjoining knob 27. The recess 22 has one this form of the connector 17 complementary design. The Recess 22 is near the opening 28 with an undercut-like Constriction provided in the area 26 of the connector 17th intervenes. This constriction is formed on the knurled nut 20 Connection part of mutually facing, elastically movable lips 30 formed.

In this exemplary embodiment, the inner sleeve 3 is in the inner sleeve 5 attached by inserting the inner sleeve 3 into the housing 18 of the outer sleeve 5 pushes in until the connecting part 17 in the recess 22 of the Snap part of the knurled nut 20 snaps. The inner sleeve 3 is thus fixed in the outer sleeve 5 by the elastically movable Hook lips 30 behind the knob 27 of the connector 17.

In order to secure the inner sleeve 3 against rotation in the outer sleeve 5, the Inner sleeve 3 equipped with a number of longitudinal ribs 29 with on the inside of the outer sleeve 5 arranged cams or strips (here not shown) cooperate. These elements shown in FIG. 4 are also present in the embodiment of FIGS. 1 and 2. Farther 4 is the inner sleeve 3 with a closure cap 23a Mistake. Such an existing from the inner sleeve 3 and cap 23a Unit can easily be refilled separately from the outer sleeve 5 with knurled nut 20 existing containers are sold.

Furthermore, it is also apparent from Fig. 4 that the wall 8 of the inner container 3 itself beyond the connecting part 17 protruding from the base 16 extends so that the inner sleeve 3 vertically in a very stable position can be set up. As a result, the filling of the inner sleeve 3 with the spreadable mass 4 considerably facilitated during manufacture.

FIGS. 6 to 9 show a third embodiment of the container 1 shown, in which the outer sleeve 5 is a partially broken Wall 18 has. Through the resulting openings 31 is the Fill level of the inner sleeve 3 visible when the inner sleeve 3 made of transparent Plastic is made.

The outer sleeve 5 also differs from the previous ones Embodiments that it is open on two sides. The dimensions the outlet opening 32 are namely smaller than the diameter of the inner container 3, so that for the insertion of the inner sleeve 3 in the outer sleeve 5, a feed opening 33 is provided, which is located in the outlet opening 32 is located opposite. The actuating means 21 or the knurled nut is therefore releasable in this embodiment the outer sleeve 5 arranged. The fastening means 6 and the holding means 7 of inner sleeve 3 and outer sleeve 5 are as a bead and groove or interlocking ribs educated.

The inner sleeve 3 is pushed into the outer sleeve 5 from below until the fastening means 6 and the holding means 7 in latching snap connection reach. Then the knurled nut 20 or the actuating means 21, which cooperates with the connector 17 recess 22 has, pushed onto the connector 17 so that the container 1 is functional.

The knurled nut is used to remove the inner sleeve 3 from the outer sleeve 5 20 deducted from the connector 17 and the locking connection of fasteners 6 and holding means 7 by slightly compressing the wall 18 of the Outer sleeve 5 loosened in the direction parallel to the fastening means, see above that the inner sleeve 3 can be removed from the outer sleeve 5.

In the example shown in FIGS. 6 to 9, the piston 12 is off two detachable parts 34 arranged concentrically to one another and 35 formed. The inner part 34 has the opening 13 with the internal screw thread up and in its starting position is behind you on the inside protruding edge 36 of the outer part 35 clamped.

In this relative position of the two parts 34 and 35 to each other, the piston 12 moved into the end position shown in Fig. 8. The inner sleeve 3 has near its open end 2 means 37 for limiting the Displacement of the piston 12 beyond the position shown in FIG. 8 on. The means 37 are in the form of an inside on the upper outer edge the inner sleeve 3 arranged circumferential bead. If the spreadable mass 4 consumed except for the rest of FIG. 8 is the piston 12 with the outer part 35 with its edge 38 to the limiting means 37 of the inner sleeve 3.

If the knurled nut 20 and thus the screw spindle 15 are actuated further, so the inner part 34 of the piston 12 over the edge 36 of the outer part 35 pushed out, so that the last remainder of the spreadable mass 4 is pressed out of the piston 12. The outer Part 35 is on its upper side with means 39 for limiting the Movement of the inner part 34 in the form of an inward protruding Bead equipped. The inner part 34 is provided with a recess 40 or a circumferential groove that interacts with this edge. When the inner end position shown in FIG. 9 is reached Part 34 forms the inner part 34 and the outer part 35 of the piston 12 a flat upper surface so that the piston 12 is completely spreadable Mass 4 is emptied.

The means 37 shown for limiting the movement of the piston 12 can of course also in the first and second embodiment of the subject matter of the invention. In this case, that leads further actuation of the screw spindle 15 - as soon as the piston the in Fig. 9 reached end position shown - to the fact that the inner sleeve 3 under Solution of the locking connection with the outer sleeve 5 and the knurled nut 20 is pressed out of the outer sleeve 5. Have a similar effect also the limiting means 39 of the parts 34 and 35 composed Piston 12 when this is in a container according to the first or second embodiment are present.

In the examples presented so far, each one is outstanding Connection part 17 of the drive means 14 and a receiving recess 22nd of the actuating means 20 shown. Of course, the connector can 17 of the drive means 14 equipped with a recess be, so serve as a receiving part while on the top of the actuator 21 or the knurled nut 20 a corresponding thereto molded connector is formed in the connector 17 of the Inner sleeve 3 engages positively.

Such an embodiment is the fourth embodiment of the Invention shown in Figures 10 to 12. The outstanding one takes hold there Connection part 41 of the knurled nut 20 in the connection part 17 of the Screw spindle 15 a form fit.

In the embodiment according to FIGS. 10 to 12, this is outstanding Connecting part 41 of the knurled nut 20 with a star-shaped cross section a plurality of ribs 56, while the connecting part 17 also has a star-shaped recess. In this fourth embodiment as fastening means 6 some arranged on the underside of the inner sleeve 3 flexible lips 42 are provided. The lips 42 are evenly over the circumference of the lower edge of the inner sleeve 3, over which it is slightly survive, distributed. This makes it possible for the inner sleeve 3 erected vertically during filling with spreadable mass 4 can stand on lips 42. The lips 42 have a projection 45 provided that in the outer sleeve 5 inserted inner sleeve 3 in lower area formed on the inside on the inner wall of the outer sleeve 5 circumferential bar 44 non-positively to form a latching connection capture.

The means of the connector 41 via a hole in its bottom 19 with the Knurled nut 20 connected outer sleeve 5 also has a longitudinal direction Movable in an opening 50 of the knurled nut 20 guided ejection element 43 on. The push-out element 43 consists of a push button 46, a plurality of circumferentially arranged on the push button 46, elastic arms 47 and a plunger element 49. The push button 46 and the Arms 47 are axially displaceable in an interior 57 of the knurled nut 20 added. The plunger element 49 extends through the opening 50 of the knurled nut 20 and through the protruding connecting part 41.

The screw 15 has at its lower end following the Connection part 41 receiving space of the connection means 17 a the plunger element 49 receiving room 51. This receiving space 51 is at the end provided with an annular circumferential stop shoulder 53 against which - as can be seen from FIGS. 10 and 11 - the end face 52 of the Tappet element 49 strikes.

When inserting the inner sleeve 3 into the outer sleeve 5, the stop shoulder comes 53 in abutment with the end face 52 of the plunger element, so that after fully inserting the inner sleeve 3 into its end position inside the outer sleeve 5, the ejection element 43 into that shown in FIG. 11 Starting position is brought. Just before the lips 42 of the Grip inner sleeve 3 behind the bar 44 of the outer sleeve 5, butt Arms 47 of the pressing element 43 on one on the inside of the interior 57 of the knurled nut 20 formed, circumferential strip 48. The inner sleeve 3 is moved into the outer sleeve 5 until the tab 42 with their respective protrusion 45 behind the bar or bead 44 grip, whereby the resting on the bar 48 arms 47 of the ejection element 43 are bent slightly so that the stop surface 52nd of the plunger element 49 a compressive force on the stop shoulder 53 Screw 15 is exercised. The inner sleeve 3 is thereby under tension attached in the outer sleeve 5, so that due to manufacturing inaccuracies with shaking movements of the container 1 possibly occurring Relative movements of the inner sleeve 3 and outer sleeve 5 to one another are not possible are.

To ensure a perfect rotary movement under the conditions of this preload the hand-operated knurled nut 20 relative to the housing 18 or the outer sleeve 5 is between the knurled nut 20 and the floor 19 of the outer sleeve 5, a bearing or slide ring 54 is provided. This is by means of an annular protruding from the bottom 19 of the housing 18 Bead 55 fixed in the radial direction.

After consumption of the spreadable mass 4 located in the inner sleeve 3 is the piston 12 at the top of the inner sleeve 3 on the open Page 2. In this position, a pushing force is applied to the push button 46 is exercised, thereby the one stored in the bottom 16 of the inner sleeve 3 Screw 15 pressed towards the open side 2, the Lips 42 come out of their locking connection and the inner sleeve 3 easily protrudes from the outer sleeve 5. This can now be easily grasped and can be removed from the outer sleeve 5. Then the outer sleeve 5 refillable by inserting a new inner sleeve 3.

In all the embodiments shown, the inner sleeve 3 has a wall 8 on, spreadable over the entire longitudinal axial extent Mass 4 extends. But it is also possible that the inner sleeve 3 only a floor 16 and attached to it over a short length or height has extending walls, the height or depth of such an inner sleeve 3 need not be larger than the piston accommodated therein 12, so that the molded body extends over the length of the outer sleeve 5 Adequate anchoring and support from a spreadable mass is offered within the container 1 when moving up and down.

Reference list

1

container

2nd

page

3rd

Inner sleeve

4th

spreadable mass

5

Outer sleeve

6

Fasteners

7

Holding means

8th

Inner sleeve wall

9

Recesses

10th

pencils

11

medium

12th

piston

13

Opening, internal thread

14

Drive means

15

Screw spindle

16

Bottom of the inner sleeve

17th

Connector

18th

casing

19th

Bottom of the outer sleeve

20th

Knurled nut

21

Actuating means

22

Recess

23

Sealing cap

23a

Sealing cap

24th

Fasteners

25th

Fasteners

26

constricted part

27

knob

28

opening

29

Longitudinal ribs

30th

Lips

31

opening

32

Outlet opening

33

Feed opening

34

Parts of the piston (inner part)

35

Parts of the piston (outer part)

36

edge

37

medium

38

edge

39

medium

40

Recess

41

Connector

42

Lips

43

Pressing element

44

strip

45

head Start

46

Push button

47

poor

48

strip

49

Plunger element

51

room

52

End face

53

Stop shoulder

54

Bearing or slide ring

55

bead

57

inner space

Claims (7)

1. A container (1) for applying a spreadable product (4), more particularly an adhesive, comprising an inner tube (3) open at at least one end (2) which contains the spreadable product (4), which is removably mounted in an outer tube (5) and which comprises a plunger (12) designed to be penetrated by a screwthreaded spindle (15) and means (6) for securing the inner tube (3) in the outer tube (5), the screwthreaded spindle (15) and the plunger (12) forming cooperating means (11,14) for applying the spreadable product (4) and the spreadable product (4) being longitudinally displaceable inside the container (1) with no change in the positions of the outer and inner tubes (5;3) relative to one another through rotation of the screwthreaded spindle (15), which engages in a screwthread (13) formed within the plunger (12), by means of an actuating element (21), more particularly a hand-operated knurled nut (20), arranged outside the outer tube (5), characterized in that the screwthreaded spindle (15) is rotatably fixed to the inner tube (3) in a position in which it penetrates through the plunger (12) and comprises a connecting part (17) which, in particular, projects from the inner tube (3) and which is designed to be releasably, but non-rotatably coupled to a corresponding connecting part (20;30;22;41) of the actuating element (21).
2. A container as claimed in claim 1, characterized in that the inner tube (3) has a wall thickness of 0.1 to 1 mm and, more particularly, 0.3 to 0.8 mm.
3. A container as claimed in claim 1 or 2, characterized in that the connecting part (17) arranged on the inner tube (3) projects from the inner tube (3) and has a cross-sectional area variable longitudinally of the inner tube (3).
4. A container as claimed in any of the preceding claims, characterized in that the fixing means (6) are formed by at least one resiliently flexible lip (42) which is directed away from the open end (2) and which in particular projects from the inner tube (3).
5. A container as claimed in any of the preceding claims, characterized in that the plunger (12) comprises an inner part (34) with the internal screwthread (13) for the screwthreaded spindle (15) and an outer part (35) which is arranged circularly around the inner part (34) and which is designed for displacement relative thereto longitudinally of the inner tube (3) and in that means (37,39) for limiting the longitudinal displacement of the outer part (35) are provided on the outer wall of the outer part (35) and the inner wall of the inner tube (3) in the region of its open end.
6. A container as claimed in any of the preceding claims, characterized in that the connecting parts of the inner tube (3) and the actuating element (21) are designed to be non-rotatably interconnected for axial displacement relative to one another.
7. A container as claimed in any of the preceding claims, characterized by a longitudinally displaceable pusher (43) which acts on the inner tube (3) and which is guided outwards through the actuating element (21).

Images