CN110191764B

CN110191764B - Paste pressing gun

Info

Publication number: CN110191764B
Application number: CN201880006982.1A
Authority: CN
Inventors: H-J.舒勒; Z.诺尼维茨
Original assignee: Wolfcraft GmbH
Current assignee: Wolfcraft GmbH
Priority date: 2017-01-13
Filing date: 2018-01-11
Publication date: 2021-08-10
Anticipated expiration: 2038-01-11
Also published as: CN110191764A; DE102017100627A1; EP3568239A2; WO2018130599A2; WO2018130599A3

Abstract

The invention relates to a pressure gun having an actuating housing (1) having a handle (2) which, in an actuating direction, moves relative to the actuating housing (1) in such a way that a pressure rod (4) arranged displaceably in the actuating housing (1) is displaced in a pressure direction, and having a receiving device (10) for receiving a paste (29) which can be pressed out of a hose or a paste cartridge by displacement of the pressure rod (4), wherein the receiving device (10) is rotatably fastened to the actuating housing (1), for which purpose a fastening bearing (11) projects into a fastening opening (13) and is axially braced in the fastening opening (13) relative to the pressure rod (4) by means of a form-fitting, the fastening bearing having an opening (12) for the pressure rod (4) to pass through. According to the invention, the positive engagement means are formed by a tie-down slider (15) which is inserted into a radial channel (14) and engages in a ring groove (16) of the fixed support (11) via a tie-down side wall (17).

Description

Paste pressing gun

Technical Field

The invention relates to a paste press gun having an actuating housing with a handle, the movement of which in an actuating direction relative to the actuating housing causes a pressure rod, which is arranged displaceably within the actuating housing, to be displaced in a pressure direction, and having a receiving device for receiving paste which can be pressed out of a hose or a paste cartridge by displacement of the pressure rod, wherein the receiving device is rotatably fixed to the actuating housing, for which purpose a fixing bearing, which has an opening for the pressure rod to pass through, projects into a fixing opening and is axially braced in the fixing opening relative to the pressure rod by means of a form-fit connection.

The invention also relates to a paste gun having an operating housing with a handle, a movement of the handle in an operating direction relative to the operating housing causing a pressure lever to move in a pressure direction, and the paste pressing gun is also provided with a containing device for containing paste which can be pressed out from the hose or the paste cylinder through the displacement of the pressure rod, and the pressure gun further has a trigger lever arranged on the actuating housing on a first side of the pressure lever for interacting with a back pressure blocking element, and the paste gun further comprises a changeover switch which can be switched from a first switching position to a second switching position, in the first switching position, the back pressure blocking element is in an active position with respect to the pressure lever, and in the second switching position, the back pressure blocking element is in an inactive position with respect to the pressure lever.

Background

Such a caulking gun to which the first aspect of the invention relates is described in document US 5,887,765. The paste gun has an operating housing with a handle pivotably articulated on the operating housing, the handle being pivotable relative to the handle. The handle acts on a follower which is snapped into the pressure lever so that the pressure lever can be moved stepwise in the pressure direction, and which is snapped into the pressure lever so that the pressure lever can be moved stepwise in the pressure direction. The threaded part has an opening for the passage of a pressure rod, which is screwed into an internal thread of the actuating housing by means of its external thread, for the positive connection of a receiving device for receiving the paste cartridge to the actuating housing in the form of a recess. The receiving device can receive a paste cartridge with paste which is pressed out by the movement of the pressure rod.

Document US 5,431,654 describes a paste cartridge extrusion device in which the actuating housing has an arcuate recess into which a radially outwardly projecting projection of the receiving device can be inserted in order to thereby connect the receiving device to the actuating housing in a positively locking and rotatable manner.

EP 1651545 discloses a caulking gun in which a fastening support is arranged on an actuating housing and a connecting profile in the form of an arcuate circumferential groove along a radial direction of a receiving device can be pushed onto the fastening support. The pressure lever ensures that the receiving device is fixed to the actuating housing.

Document DE 102014116514 describes a caulking gun according to a second aspect of the invention, in which a changeover switch is provided, by means of which the counterpressure blocking element can be changed over between an active position and an inactive position.

Document DE 102014105935 a1 describes a paste gun in which the angle between the handle and the grip can be adjusted. This is achieved by means of an adjustable eccentric sleeve.

Disclosure of Invention

The object of the invention is to provide a means for advantageously improving the application of a caulking gun.

The technical problem is solved by the invention content provided by the claims. The dependent claims are not only improvements to the inventive content provided by the dependent claims but are also solutions to the technical problem themselves.

According to a first aspect of the invention, a form-fit element is developed, by means of which the receiving device is fastened to the actuating housing. The fixed support is embedded into the fixed opening. The fastening opening opens into a radial channel which extends radially with respect to the direction of extension of the pressure rod. A tie down slip may be moved into the radial channel, the tie down slip having tie down sidewalls. In the form-fitting position, the bounding side wall engages in a ring groove of the fixed bearing. The fixed bearing is rotatable in the fixed opening, so that the receiving device can be rotated about an axis formed by the pressure bar. Preferably, the fixed bearing is formed by the receiving device and is in particular connected in a material-consistent manner to the end piece of the receiving device. The radial channel has two walls extending parallel to each other, the distance between the walls preferably being equal to the thickness of the material bounding the slider. Both walls of the radial channel may have an opening. The two openings may be aligned with each other. The fixing support can project into both openings. The ring groove then extends in the region of the radial channel. The radial channel is preferably formed by the actuating housing and has a communication opening which is directed toward the first side of the actuating housing. A handle or a trip rod is arranged on the first side surface. The trip lever can extend in front of the communication port of the radial channel, so that the binding slider can move into the radial channel only when the trip lever rotates. The binding side walls of the binding slide are preferably formed by the edges of the U-shaped cutout in the binding slide, which is preferably made of steel, injection molded parts or the like. In a preferred development, the fixed bearing is spring-loaded by a spring in the axial direction of the pressure rod. When the fixing support is inserted into the fixing opening, the pressure spring must be compressed. The pressure spring can be a pressure spring assigned to the counterpressure lock, which is mounted on the end face of the fixed support and is penetrated by the pressure rod. One end of the spring can be arranged in a recess in the end face of the fixed bearing. The other end can be supported on a counterpressure lock made of steel plate. The end cap forming the end piece, which preferably projects from the fixed support, can form an end wall which rests in contact against the end wall of the operating housing. The receiving device can have a receiving body which is designed as a tube or as a groove. A pressure disk attached to the end of the pressure rod can be displaced in the pipe or the groove, and a piston of a hose or a paste cartridge with paste is displaced by the pressure disk in such a way that the paste is pressed out through an opening of the head part opposite the end part. This is preferably achieved by means of a nozzle. The two opposite openings of the tubular receiving body are preferably closed by the end piece and the head piece. The head part and the end part are connected to the receiving body by means of a form-fit joint. This involves a plug connection or a screw connection.

A second aspect of the invention relates to a development of the changeover switch, which can be changed over from a first switching position, in which the counterpressure lock is in the active position against the pressure lever, to a second switching position, in which the counterpressure lock is in the inactive position against the pressure lever. In both positions, the pressure lever can be moved in the pressure direction by a stepwise operation of the handle. In the active position, the back pressure lockout prevents the pressure rod from moving back. The pressure lever can be moved counter to the pressure direction only when the back pressure blocking element is moved by the pivoting of the trigger lever. In the inactive position, the pressure lever can be moved back even if the toggle lever is not operated. The inactive position is particularly advantageous if the paste is compressed during extrusion and the compression of the paste leads to leakage. In the inactive position, the batter can relax again after the end of the handle operation.

According to the invention, the changeover switch is located on the opposite side of the trip lever with respect to the pressure lever. The trip lever can have a projection which acts on a back pressure lock, preferably formed by a plate, on the first side. On a second side opposite the first side, a section of the changeover switch acts on the back-pressure blocking element. The section is a projection or an eccentric section and forms a projection projecting radially beyond the pivot axis of the switch. The section preferably rests against the counterpressure lock in the active position. The counterpressure lock preferably has two broad sides facing away from one another. One of the two broad sides points in the pressure direction. On its wide side facing away from it, a section of the changeover switch and an eccentric projection of the trip lever act, wherein the counterpressure lock is spring-loaded and is supported on the trip lever and the changeover switch and extends essentially in a plane transverse to the axis of the pressure lever.

A grip width adjustment is also provided. For this purpose, an eccentric sleeve is arranged on a pivot axis about which the handle can be pivoted, said eccentric sleeve being mounted in a mounting opening of the actuating housing. The eccentric sleeve can be rotated by means of a switching lever in order thereby to change the angle between the handle and the grip. The handle has a drive arm which projects into the operating housing and acts on at least one follower which can be brought into a following position relative to the pressure lever in order thereby to move the pressure lever stepwise in the pressure direction by a swinging operation of the handle. A return spring is provided which moves the follower back to the initial position. When the eccentric sleeve rotates, the rotational axis of the handle moves. In this case, the entire handle is rotated about the contact point of the drive arm on the follower.

The receiving device is preferably formed by a receiving body, which has in particular the shape of a pipe piece open on both sides. One end of the receiving body is inserted into the receiving opening of the end piece. The end piece has a sleeve section into which the first end of the receiving body is inserted. An axial restraint of the receiving body is provided on the end piece. On the side opposite the end piece, the second end of the receiving body projects into a receiving opening of a head piece, which has an opening for passing through the paste. The opening can in particular accommodate a nozzle. The head part has a sleeve section into which the end of the receiving body is inserted. The sleeve section of the end piece and the sleeve section of the head piece are each releasably connected to the receiving body by a plug-in connection. In order to axially fasten the head and the end piece to the receiving body, the head and the end piece must be rotated by an angle after the end of the receiving body has been inserted into the sleeve section, so that the fastening elements axially fasten one after the other. In order to fix the rotational position in which the end piece and the head piece are axially braced on the receiving body, a locking element is provided. In particular, a latching projection is provided which interacts with a corresponding latching projection. The corresponding latching projections are preferably designed as latching recesses into which the latching projections can engage. The latching projections can be formed by the receiving body and the corresponding latching projections or latching recesses can be formed by the sleeve sections. In particular, it is provided that the locking means form a locking projection which engages in a locking groove, wherein the receiving body preferably forms a radially outwardly directed locking projection and the sleeve section forms a radially unidirectionally directed locking groove. To release the locking connection, a torque must be applied to the sleeve section accordingly. According to one aspect of the invention, the two latching connections are designed such that, in order to release the head part from the receiving body, a lower torque than is required to release the end part from the receiving body must be applied. For this purpose, it is provided in particular that the number of latching projections which engage in the latching grooves in the latching connection between the end piece and the receiving body is greater than in the latching connection between the head piece and the receiving body.

Drawings

Embodiments of the present invention are described below with reference to the accompanying drawings. In the drawings:

fig. 1 shows a perspective view of a first exemplary embodiment of the pressure gun, with the changeover switch 6 in a second switching position, in which the counterpressure blocking element is in the inactive position,

fig. 2 shows a longitudinal section through the paste gun shown in fig. 1, but with the changeover switch 6 moved into a first switching position,

figure 3 shows an enlarged view of part III of figure 2,

figure 4 shows a section through the tie-down slider 15 according to the line IV-IV in figure 3,

fig. 5 shows a view according to fig. 3, but with the projection 19' disengaged from the blocking position,

fig. 6 shows the view according to fig. 4, but with the tie-down slider 15 partially pulled out of the form-fitting engagement position,

figure 7 shows an exploded view of some elements of the caulking gun,

fig. 8 shows an enlarged view of a pressure disc 27 arranged on the end of the pressure bar 4, which holds a pressure punch 28,

figure 9 shows a perspective isolated view of the elements shown in figure 8,

fig. 10 shows a second perspective view of the second exemplary embodiment, in which the actuating housing 1 is connected to a receiving device 10 of a different design,

fig. 11 shows a sectional view of the second embodiment, similar to fig. 2, but with the changeover switch 6 in its second switching position,

figure 12 shows a cross-sectional view taken along line XII-XII of figure 2,

figure 12a shows an enlarged view of detail XIIa in figure 12,

FIG. 13 shows a cross-sectional view taken along line XIII-XIII in accordance with FIG. 2, an

Fig. 13a shows an enlarged view of a part XIIIa in fig. 13.

Detailed Description

The paste gun shown in the figures has an actuating housing 1, which actuating housing 1 is made of plastic or another material, for example metal, and on which a handle 2 and a trigger lever 5 are pivotably articulated about a pivot axis 35 in the direction of a handle 3. The pressure rod 4 is movably arranged in the operation housing 1 in the axial extension direction thereof. A handle and a stopper spring are mounted on the rear end of the pressure rod 4. A pressure disk 27 is fixed to the pressure-side end of the pressure rod 4. For this purpose, the end of the pressure rod 4 can have a circumferential groove, into which a securing ring is inserted. However, it can also be provided that the thread of the pressure rod 4 engages with the thread of the pressure disk 27. The edge 27' of the pressure disc 27 engages with the arcuate groove 36 of the pressure punch 28 (see fig. 8 and 9).

The pivot axis 35 extends within an eccentric sleeve 34, which is mounted in a bearing cavity of the housing. The eccentric sleeve 34 is rotated by means of a switching lever 33 fixed to the eccentric sleeve 34 to thereby change the angle formed by the handle 2 with respect to the grip 3.

The handle 2 is basically a two-armed lever with a long lever arm surrounded by the fingers of the user's hand and a short lever arm acting on a follower 8 consisting of two steel plates. When the short lever arm exerts a force on the follower 8, the follower 8 tilts. The pressure bar 4 passes through the aperture of the follower 8 such that the follower 8 is skewed relative to the pressure bar 4 when tilted. The displacement of the follower 8 due to the oscillation of the handle 2 causes a linear displacement of the pressure rod 4 in the pressure direction, in which the pressure disc 27 is moved in the housing 10 in the direction of the nozzle 30.

If the handle 2 is released again after the pivoting movement, the handle 2 is pivoted back into the initial position by means of the leg spring. The follower 8 is placed in the initial position by means of the spring 7.

The trip lever 5 likewise has a first long arm which can be grasped by the finger of the user's hand and a short arm which forms an eccentric projection which acts on the counterpressure lock 9. The back pressure lock 9 may be a steel plate with a hole through which the pressure rod 4 passes. The pressure lever 4 can be moved only in the pressure direction if the back pressure latch 9 is in an inclined position relative to the pressure lever 4. Conversely, if the back pressure lock 9 is not in the inclined position, the pressure rod 4 can be moved axially in both directions relative to the back pressure lock 9.

The actuating housing 1 has a first side on which a triggering lever 5 and a handle 2 as well as a grip 3 are arranged. The first side is opposite the second side. The pressure rod 4 extends between two sides, and the back pressure latch 9 is located between the two sides. The actuating section of the switch 6 projects outwardly from the second side of the actuating housing 1. The changeover switch 6 can be changed over from the first switching position shown in fig. 2 to the second switching position shown in fig. 11. In the first switching position, the counterpressure lock 9 is in the active position. In this position, the pressure lever 4 can only be moved counter to the pressure direction by an operation of the trip lever 5. In the active position, an eccentric section 31, which projects eccentrically beyond the pivot axis of the changeover switch 6, acts on an edge section of the counterpressure blocking element 9. As a result, the back pressure blocking element 9 is axially braced on its side opposite the trigger lever 5. The eccentric section 31 presses the edge of the counterpressure lock 9 there in the direction of the housing wall of the actuating housing 1.

The spring 22 acts on the back pressure latch 9 such that the back pressure latch 9 is in an inclined position, so that the pressure lever 4 is tilted in the hole of the back pressure latch 9. If the trigger lever 5 is pivoted, the back pressure blocking member 9 is moved out of the inclined position against the force of the spring 22.

When the changeover switch 6 is transferred from the first switching position shown in fig. 2 to the second switching position shown in fig. 11, the counterpressure blocking member 9 is also moved out of the inclined position. The counter-pressure lock 9 acted on by the spring 22 is then supported on a section of the changeover switch 6 and the toggle lever 5, so that the pressure lever 4 can be freely moved through the bore of the counter-pressure lock 9.

The back pressure blocking element 9 can thus assume two different inactive positions, in each of which the back pressure blocking element 9 extends substantially perpendicular to the direction of extension of the pressure rod 4. In the first inactive position, the projection of the changeover switch 6, which is referred to as the eccentric section 31, and the short arm of the trip lever 5 press the back pressure blocking member 9 against the housing wall when they are operated. In the second inactive position, the counterpressure lock 9 is spaced apart from the housing wall 37 and is held in a position parallel to the housing wall 37 by a section of the changeover switch 6 and the non-actuated trigger lever 5.

The receiving device 10 is rotatably connected to the actuating housing 1. The axis of rotation is constituted by the pressure rod 4. The pressure rod 4 passes through the axial center of the fixing opening 13 of the end wall 20 of the operation housing 1. The fixing opening 13 has a circular contour. A radial channel 14 of the actuating housing 1 adjoins the actuating opening 13. The radial channel 14 extends in the radial direction of the reference pressure lever 4 and has an access opening in the region of the operating section of the trip lever 5.

The receiving housing 10 has a fastening support 11 which projects beyond an end wall 21 of the receiving device 10. The fixed support 11 has an end face 11' provided with a recess 23 and an opening 12, the pressure rod 4 passing through said opening 12.

The fixing mount 11 is inserted into the fixing opening 13 to fix the receiving device 10 to the operating housing 1. For this purpose, the fixed abutment 11 has an outer diameter which is equal to the inner diameter of the opening 12.

The fixed abutment 11 has a circumferential annular groove 16. In the inserted state, the circumferential groove 16 is located in the region of the radial channel 14. The end wall 20 can rest against the end wall 21. However, the two

end walls

20, 21 may also be spaced apart from each other. The radial channel has two walls spaced apart from one another, namely an end wall 20 and a wall 38 extending parallel thereto, the wall 38 having an opening 39, into which opening 39 a section of the fixing support 11 is inserted, wherein the opening 39 is aligned with the opening 13.

A tie down slider 15 made of steel material, having a U-shaped recess, moves into the radial channel 14. The edges of the U-shaped recess form a bounding side wall 17 which engages in the annular groove 16 in a form-fitting engagement position, so that the fixed mount 11 is thereby bounded axially in the opening 12 and thus the receiving device 10 is bounded axially on the operating housing 1.

Since the fastening bearing 11 projects rotatably into the fastening opening 13, the receiving device 10 can be rotated by any desired angle of rotation relative to the actuating housing 1.

In this embodiment, the tie-down slider 15 is inserted into the radial channel 14 such that the tie-down slider can only be disengaged from its form-engaging engagement position by means of a tool, for example by means of the blade of a screwdriver. For this purpose, the latching projections 19' of the latching tongues 19 have to be moved out of the rear latching position. In this exemplary embodiment, the latching projections 19' project into latching openings 18 of the restraint slider 15, wherein the latching openings 18 lie opposite the restraint openings 17. The locking tongue 15 is cut free from the wall plate 38.

A spring 22 acts on the counterpressure blocking element 9, and the pressure rod 4 passes through the spring 22, said spring 22 bearing on the end face of the actuating support 11. Said end surface being located on the bottom of the recess 23.

In the exemplary embodiment shown in fig. 1 to 7, the receiving device 10 has an end piece 24, which is connected to a tubular receiving body 25 in a form-fitting manner, for example by a plug-in connection. The end piece 24 closes the tube opening and is made of a uniform material to form the end wall 21 and the fastening base 11 projecting beyond the end wall 21 and is preferably designed as a plastic part for this purpose.

The further tube opening of the receiving body 25 is closed by a head part 26, which can support the nozzle 30.

In the second exemplary embodiment of the receptacle 10 shown in fig. 10 and 11, the end piece 24 'is seated on a pot-shaped receptacle 25' in order to receive the paste cartridge. The head-side end of the receiving body 25' has a cutout for inserting the nozzle 30.

Fig. 12 to 13a show that the head 26 or the end piece 24 is connected to the end of the receiving body 25, which is designed as a tube. This is a plug-in connection, i.e. a rotary plug-in connection. The receiving body 25 is inserted into a sleeve section of the end piece 24 or of the head piece 26. The sleeve section or end section of the receiving body 25 has a fastening element which, after partial rotation of the end piece 24 or the head piece 26 relative to the receiving body 25, is brought into an axially continuous position, so that the fastening element fastens the end piece 24 or the head piece 26 axially to the receiving body 25. In order to hold end piece 24 or head piece 26 in the captive end position, a detent is provided, which interacts in the rotational end position in order to produce a rotational blocking. The locking parts have in particular locking elements which are nested into one another. The latching means can be formed by engaging sections of the head 26, the end piece 24 and the two ends of the receiving body 25.

In this exemplary embodiment, the outer wall of the receiving body 25 has a radially outwardly directed latching projection 40. The four locking protrusions are arranged side by side along the circumferential direction. The inner wall of the sleeve section of the end piece 24 or the head piece 26 has corresponding latching elements which interact with the latching elements. The counter-locking element is formed by a locking

groove

41 or 42 into which the locking projection 40 projects. The end piece 24 has four latching grooves 41. The number of latching projections 40 is equal to the number of latching grooves 41.

While head 26 shown in fig. 13 and 13a has a smaller number of retention slots 42 than end piece 24. In the present embodiment, there are two locking grooves 42, and only two locking projections 40 are fitted into these two locking grooves 42.

The rotation-blocking latching connection between the end piece 24 and the receiving body 25 or between the head piece 26 and the receiving body 25 is selected such that less torque is required for releasing the head piece 26 from the receiving body 25 than for releasing the receiving body 25 from the end piece 24. This has the advantage that the caulking gun can be held on the handle 3 for removal of the head part and only the head part 26 has to be turned. Since the number of locking

parts

42, 40 which engage in one another in the region of the head part 26 is less than the number of locking

parts

40, 41 which engage in one another in the region of the end part 24, the head part 26 can be released from the receiving body 25 without the locking connection between the end part 24 and the head part 25 being released. In order to release the latching connection between the receiving body 25 and the end piece 24, a higher torque must be applied.

The receiving body 25 and/or the end piece 24 and the head piece 26 are made of an elastically deformable material so that an elastic deformation is achieved by applying a torque, wherein the latching

projections

40, 41 are disengaged from their associated latching grooves 42. This is achieved by sliding along the inclined surfaces, which are constituted by the latching

projections

40, 41 and the latching grooves 42.

The above-described embodiments serve to illustrate the invention contained in its entirety in the application, which extends the prior art at least in each case independently of one another by the following feature combinations, wherein two, more or all feature combinations can also be combined, namely:

a caulking gun, characterized in that said form-engaging elements are tie-down sliders 15 which are moved into radial channels 14 and which engage in annular grooves 16 of said fixing support 11 through tie-down side walls 17.

A caulking gun, characterized in that the fixing seat 11 is arranged on the containing device 10, and the fixing opening 13 and the radial passage 14 are formed by the operation housing 1.

A caulking gun, characterized in that there is provided a latching projection 19' of a latching tongue 19 projecting into the radial channel 14, said latching projection holding the tie down slider 15 in its tie down position by means of a rear snap tie down slider 15.

A caulking gun, characterized in that the binding slider 15 is made of steel and/or the binding slider 15 has a locking opening 18 into which a locking projection 19' protruding out of the wall of the radial channel 14 is fitted.

A caulking gun, characterized in that the binding slider 15 is manually irreleasably bound in a binding position.

A caulking gun is characterized in that end pieces 24, 24', in particular made of plastic, of a receiving device 10 protrude in a material-uniform manner from the fastening base 11.

A caulking gun is characterized in that a spring 22 associated with the actuating housing 1 acts axially on the fixed bearing 11, wherein the spring 22 is in particular a compression spring which acts on the counterpressure blocking element 9.

A caulking gun, characterized in that the changeover switch 6 is arranged on a second side of the actuating housing 1, which is opposite the first side with reference to the pressure lever 4, and in that the changeover switch 6 has a section, in particular an eccentric section 31, which in the active position abuts the back pressure blocking element 9.

A paste gun, characterized in that the change-over switch 6 is a swing lever.

A paste gun, characterized in that the angle of the handle 2 relative to the grip 3 can be adjusted by means of grip width adjustment means 33, 35.

A caulking gun, characterized in that the first torque is defined by a

first detent

40, 41 nested within one another and the second torque is defined by a

second detent

40, 42 nested within one another, and both

detents

40, 41, 42 are designed such that the first torque is smaller than the second torque.

A paste gun is characterized in that the clamping piece is provided with clamping bulges 40 which are embedded into clamping

grooves

41 and 42.

A paste gun is characterized in that the number of locking projections 40 fitted into locking grooves 42 of a head member 26 is smaller than the number of locking projections 40 fitted into locking grooves 41 of an end member 24.

The caulking gun is characterized in that the latching

grooves

41, 42 and the latching projections 40 are formed by a tooth structure which is arranged circumferentially on the sleeve section of the head part 26 and the end part 24 and on both ends of the receiving body 25.

All the disclosed features (per se and in combination with each other) are essential to the invention. The disclosure of the associated/subordinate priority document (prior application) is also fully included in the disclosure of the present application, for which reason the features of this priority document are also included in the claims of the present application. The features of the dependent claims are all inventive independent developments of the prior art, in particular for divisional applications based on these dependent claims.

List of reference numerals

1 operating the housing

2 handle

3 handle

4 pressure bar

5 pulling rod

6 change-over switch

7 spring

8 follower

9 backpressure blocking piece

10 accommodating device

11 fixed support

11' end face

12 opening

13 fixed opening

14 radial channel

15 binding slide block

16 ring groove

17 bounding the side wall

18 stop opening

19 locking tongue

19' projection

20 end wall

21 end wall

22 spring

23 recess

24 end piece

24' end piece

25 containing body

25' containing body

26 head part

27 pressure disc

27' edge

28 pressure punch

29 paste

30 nozzle

31 eccentric section

32 axis of oscillation

33 conversion lever

34 eccentric sleeve

35 axis of oscillation

36 arc-shaped groove

37 casing wall

38 wall part

39 opening

40 stop lug

41 locking groove

42 locking groove

Claims

1. A paste gun having an actuating housing (1) with a handle (2) which, in the actuating direction, relative to the actuating housing (1) causes a pressure rod (4) which is arranged displaceably in the actuating housing (1) to be displaced in the pressure direction, and having a receptacle (10) for receiving a paste (29) which can be pressed out of a hose or a paste cartridge by displacement of the pressure rod (4), wherein the receptacle (10) is rotatably fixed to the actuating housing (1) and for this purpose a fixing bearing (11) which has an opening (12) for the passage of the pressure rod (4) projects into a fixing opening (13) of an end wall (20) of the actuating housing (1) which opens into a radial channel (14) and is axially braced in the fixing opening (13) relative to the pressure rod (4) by means of a form-fit connection, characterized in that the form-fit element is a tie-down slider (15) which is inserted into a radial channel (14) extending in the radial direction of the reference pressure bar (4) and engages in a ring groove (16) of the fixed bearing (11) via a tie-down side wall (17).

2. Paste gun according to claim 1, characterized in that said fixed seat (11) is placed on said containing means (10) and said fixed opening (13) and radial channel (14) are constituted by the operating casing (1).

3. The paste gun according to claim 1, characterized in that a latching tongue (19) is provided, a latching projection (19') of said latching tongue (19) projecting into said radial channel (14) holding said tie down slider (15) in its tie down position by a rear snap tie down slider (15).

4. The paste gun according to claim 3, characterized in that the binding slide (15) is made of steel and/or has a latching opening (18) into which a latching projection (19') projecting out of the wall of the radial channel (14) engages.

5. The caulking gun according to claim 1, characterized in that the binding slider (15) is manually non-releasably bound in a binding position.

6. The paste gun according to claim 1, characterized in that the end pieces (24, 24') of the receiving means (10) project in material consistency from the fixed support (11).

7. The paste gun according to claim 6, characterized in that said end pieces (24, 24') are made of plastic.

8. Paste gun according to claim 1, characterized in that a spring (22) associated with the operating housing (1) acts axially on the fixed support (11).

9. The paste gun according to claim 8, characterized in that the spring (22) is a compression spring which acts on a back pressure lock (9), wherein the actuating housing (1) has a first side on which the handle (2) is arranged and which is opposite a second side of the actuating housing (1), wherein the pressure lever (4) extends between the first and second sides of the actuating housing (1), and wherein the back pressure lock (9) is located between the first and second sides of the actuating housing (1).

10. A caulking gun having an operating housing (1) with a handle (2) which, in an operating direction, causes a pressure rod (4) to move in a pressure direction relative to the operating housing (1), and further having a receiving device (10) for receiving a paste (29) which can be pressed out of a hose or a paste cartridge by displacement of the pressure rod (4), and further having a counterpressure lock (9) which is arranged on the operating housing (1) on a first side of the pressure rod (4), and further having a changeover switch (6) which can be changed over from a first switching position, in which the counterpressure lock (9) is in an active position against the pressure rod (4), to a second switching position, in which the counterpressure lock (9) is in an inactive position against the pressure rod (4), wherein the actuating housing (1) has a first side on which the handle (2) is arranged, and wherein the first side of the actuating housing (1) is opposite a second side, wherein the pressure lever (4) extends between the first side and the second side of the actuating housing (1), and wherein the counterpressure lock (9) is located between the first side and the second side of the actuating housing (1), wherein an actuating section of the switch (6) is arranged on the second side of the actuating housing (1) and has an eccentric section (31), wherein in the inactive position the counterpressure lock (9) bears by spring action against the eccentric section (31), characterized in that the actuating section protrudes from a side of the reference pressure lever (4) which is opposite the first side of the pressure lever (4), the counterpressure blocking element (9) is also mounted in the active position on the eccentric section (31) and in the inactive position additionally on a short arm of the triggering lever (5), which projects from the first side of the actuating housing (1).

11. Paste gun according to claim 10, characterized in that said change-over switch (6) is a swing lever.

12. Paste gun according to claim 10, characterized in that the angle of the handle (2) relative to the grip (3) can be adjusted by means of a grip width adjustment device (33, 35).

13. A paste gun, wherein a first end of a receptacle (25) for receiving paste is releasably fastened to an end piece (24) by applying a first torque, a pressure rod (4) passes through the end piece (24), and wherein a second end of the receiving body (25), which is opposite the first end, is releasably fixed to a head part (26) by applying a second torque, the opening for extruding the paste being spatially associated with the head part, characterized in that the first torque is defined by first catches which are nested with one another in the region of the head part (26), and the second torque is defined by second detents which are nested with one another in the region of the end piece (24), and the first and second grips are designed such that the first torque is less than the second torque.

14. The caulking gun according to claim 13, wherein the first and second locking pieces have a locking protrusion and a locking groove, and the locking protrusion is fitted into the locking groove.

15. The caulking gun according to claim 14, wherein the number of the locking projections of the head member (26) fitted into the locking grooves is smaller than the number of the locking projections of the end member (24) fitted into the locking grooves.

16. The paste gun according to claim 14, wherein the latching grooves and latching projections are formed by a toothing arrangement which is arranged circumferentially on the sleeve section of the head part (26) and of the end part (24) and on both ends of the receiving body (25).