Riveting device, collection container for rivet mandrel remnants and a method for mounting and removing such a collection container

Description

CROSS-REFERENCE TO RELATED APPLICATION

This application is a national stage application, filed under 35 U.S.C. § 371, of International Patent Application PCT/DE2023/100495, filed on Jun. 29, 2023, which claims the benefit of German Patent Application DE 10 2022 116 432.2, filed on Jun. 30, 2022.

TECHNICAL FIELD

The present disclosure relates to a riveting device, for example a blind rivet setting tool. Furthermore, the present disclosure relates to a collection container for rivet mandrel remnants and a method for mounting and removing such a collection container.

BACKGROUND

Riveting devices are typically used to produce a rivet connection between two or more materials, such as for example metal sheets, at a connection point at which the materials are placed on each other. To form the rivet connection, a plastically deformable, often cylindrical connecting element is used which is generally referred to as a rivet. The rivet usually has a rivet head prefabricated on one end. To produce the rivet connection, the rivet is introduced into a connection hole at the connection point up to the rivet head and then the other end of the rivet is plastically deformed to form a closing head.

Commonly used riveting devices usually comprise a riveting tool which is set up to cause a plastic deformation forming the closing head. The riveting devices have a drive device accommodated in a device housing for actuating the riveting tool. Often, the drive device is electromechanical and comprises, for example, an electric motor and a spindle gear formed as a ball screw drive having a threaded spindle and a spindle nut. Typically, the spindle nut is driven by the electric motor and the threaded spindle is secured by torque supports against rotation, so that the threaded spindle shifts axially and in the process acts on the riveting tool when the spindle nut rotates.

Such a riveting device is described in EP 0 527 414 A1. The riveting device is formed and set up for blind riveting, by exerting a pulling movement to pull a rivet mandrel out from the rivet body of a blind rivet, compressing the rivet body to create a closing head, until it results in tear-off of the rivet mandrel. The torn-off rivet mandrel piece can be disposed of in a collection container, in the axial direction, i.e. in the direction of the pulling movement of the rivet mandrel, via a continuous bore in the threaded spindle and an adjoining tubular element.

In the case of the riveting device, the collection container is releasably fixed on the device housing. For this purpose, an interposed tube piece is provided which, on the one hand, is screwed onto the device housing by means of screw elements and, on the other hand, serves as a receiver in which the collection container is releasably inserted with a corresponding extension. Often, the tube piece and the extension are each provided with a thread and the connection of the collection container to the tube piece is realised by screwing. To ensure that the collection container is still held securely on the riveting device when it is filled with rivet mandrel remnants, typically a significant screw-in length is required. Therefore, the riveting device is relatively bulky in the axial direction, in particular when the collection container is removed.

SUMMARY

In the context of an ongoing further development, it can therefore be seen that there is a need to improve the compactness of a riveting device, in particular for the state in which the collection container is removed. The expectation is that an improved compactness when the collection container is removed facilitates reaching those difficult-to-access riveting points which can only be reached with the collection container removed. It is also expected that improved compactness makes the riveting device lighter and/or easier to handle. Furthermore, the expectation is that despite the improved compactness, the collection container can be held securely on the riveting device even when the collection container is filled with rivet mandrel remnants.

One embodiment of a basic riveting device comprises a collection container for rivet mandrel remnants and a support structure for the collection container. An improvement in the compactness is provided by one embodiment of the riveting device, in which a fixing mechanism is provided, which is set up in such a way that the collection container can be brought into a fixing position on the support structure by a translational movement with respect to the support structure along a spatial axis. Preferably, the fixing mechanism is furthermore formed in such a way that the collection container is to be released from the fixing position by a rotational movement with respect to the support structure around the spatial axis. Preferably, the translational movement is an exclusively translational movement.

Mounting the collection container on the support structure without screwing is possible with the proposed fixing mechanism. Therefore, with regard to its overall size when the collection container is removed, the riveting device can be realised in a shorter axial overall length relative to the spatial axis than is the case when the riveting device has a screw thread for screwing on the collection container. Simultaneously, removing the collection container from the support structure by a movement method other than during mounting is possible with the proposed fixing mechanism. This aims to decouple the release force to be applied for releasing the collection container from the fixing position largely or completely from the operative direction of the retaining force, which is created by the translational movement along the spatial axis as part of mounting and holds the collection container in the fixing position in the direction of this axis. Therefore, the retaining connection acting in the direction of the spatial axis can be formed to be more robust between the collection container and the support structure, since release does not take place in this direction. Subsequently, in this manner, an undesired self-actuated release of the collection container due to its own gravitational force, for example in the state filled with rivet mandrel remnants, is counteracted.

In one embodiment, the fixing mechanism comprises a fixing connection assigned to the collection container and a fixing connection assigned to the support structure, which in particular are set up that in the fixing position they form a snap connection with each other. The fixing connections are also set up that the collection container is blocked in the snap connection in the direction along the spatial axis against loosening from the support structure.

Such an embodiment enables the more compact design of the riveting device, sought in comparison to the screw connection, in the axial direction for the case that the collection container is removed. The snap connection additionally represents a connection type which can build up system-induced higher retaining forces in the mounting direction, i.e. in the direction of the spatial axis, in order to hold the collection container securely in the fixing position for example, when it is largely or completely filled with rivet mandrel remnants. In this respect, the snap connection can be dimensioned by way of an appropriate design such that an undesired self-actuated release of the collection container counter to the snap direction, i.e. counter to the mounting direction, due to its own gravitational force, for example in the state filled with rivet mandrel remnants, is avoided.

Furthermore, the improved riveting device is to be created so that the fixing mechanism is set up that the collection container is blocked in the snap connection against rotation around the spatial axis relative to the support structure up to a predetermined torque, i.e. there is a rotary lock. Therefore, an undesired, in particular early release of the collection container is counteracted by a torque acting around the spatial axis. This makes it possible that an outward movement of the collection container is only moved out from the fixing position on the support structure when the predetermined torque is exceeded and therefore the rotary lock is overcome.

A possible embodiment of the fixing connection can be that one of the fixing connections has at least one latching projection and the other fixing connection has at least one recess which can be used as a counter latching structure, for example. The latching projection and the recess are in particular set up so that in the fixing position, the latching projection latches in the recess or engages in the recess. The latching projection can be a latching lug which, for example, is formed in the shape of a lug in the direction of the spatial axis.

In order to achieve latching acting in the axial direction, according to one embodiment, the recess has a latching edge extending transverse, in particular orthogonal to the spatial axis. In order to achieve the above-described rotary lock, according to one embodiment, the recess is closed at the ends in the circumferential direction relative to the spatial axis. This can be realised in that the recess is delimited in the circumferential direction relative to the spatial axis by side wall surfaces spaced apart from each other, between which the latching projection is in the fixing position, or when a snap connection is present.

In order to overcome the rotary lock by exceeding the predetermined torque, and thus to release the collection container from the fixing position on the support structure, it is provided according to an embodiment that the latching projection and/or the recess has a rounded contour on at least one end section in the circumferential direction relative to the spatial axis. Therefore, the locking effect caused by engaging the latching projection into the recess is reduced in the circumferential direction relative to the spatial axis. The rounded contour is therefore set up for example, such that when reaching the predetermined torque, the latching projection and thus a wall surface in contact with it slide against each other and therefore the latching projection and the recess are moved away from each other in the radial direction relative to the spatial axis and are disengaged.

A sufficiently high retaining force to prevent rotation is enabled by the rounded contour, as long as the latching projection is completely plugged into the recess. The further the latching projection emerges from the recess, the lower the retaining force to prevent rotation. In this respect, a rounded contour is useful since it facilitates easy release after the retaining force has been exceeded.

Alternatively, the latching projection and/or the recess or the latching recess can have a slanted contour on at least one end section in the circumferential direction relative to the spatial axis. Therefore, it is also possible that the locking effect caused by the engagement of the latching projection into the recess is reduced in the circumferential direction relative to the spatial axis, so that it is easier to bring the collection container out from the fixing position on the support structure. The slanted contour enables the latching projection to always rest against the wall of the recess at the same angle, so that the force ratios are approximately the same when releasing.

The improved riveting device can also be designed so that the at least one end section of the latching projection and the associated at least one end section of the recess are formed to be aligned with each other in the circumferential direction relative to the spatial axis and/or have an orientation corresponding to each other. This measure also supports releasing the snap connection in the above-described manner.

On the one hand, an undesired release of the snap connection in the axial direction is counteracted by the above-proposed embodiment of the fixing connection, and on the other hand, the rounded contour or slanted contour allows a desired release of the snap connection when applying a torque above a predetermined force value. In other words, removing the collection container from the support structure is only possible by applying a torque around the rotational axis, and only when a predetermined torque is built up.

In one possible embodiment, the latching projection or the recess is arranged on a resilient snap lug and the snap lug is provided at least twice, for example. In this case, the improved riveting device can be designed so that the at least two resilient snap lugs extend in the direction of the spatial axis with their longitudinal extension, and in particular are at a radial distance from each other in relation to the spatial axis and in particular are sprung towards each other. Therefore, a technically simple production of the fixing mechanism or the fixing connections is favoured.

For example, in the same vein, according to one embodiment, the aim of the measure is that the at least two resilient snap lugs are provided on one of the fixing connections and in the fixing position act from the outside against the circumference of the other fixing connection.

The improved riveting device can also be designed that the support structure has a circumferential wall surface around the spatial axis which corresponds to a circumferential surface of the collection container. In this case, it can be provided that in the fixing position, the circumferential wall surface and the circumferential surface overlap each other and form a plug connection. Therefore, support and/or centring of the collection container is achieved on the support structure in the radial direction when the collection container is located in the fixing position, i.e. the plug connection is created.

In one possible embodiment, the support structure is formed on a preferably tubular housing part or comprises such a housing part. For example, the housing part has a round cross-section. For example, the housing part extends with its longitudinal extension in the direction of the rotational axis and/or is arranged coaxially to the rotational axis.

The improved riveting device can be designed in this embodiment so that one of the fixing connections is formed on the housing part on opposing surface sections of its outer circumference and in particular the surface sections extend parallel or essentially parallel to each other and in particular the surface sections are flat. Therefore, a design of the fixing mechanism is enabled in which in the fixing position, the collection container is adapted in the radial direction to the outer circumference of the housing part. The fixing connection is then, for example, recessed on the straight surface sections in comparison to the round outer circumference.

The improved riveting device can be designed in this embodiment so that in each case the above-described counter latching structure is arranged on the surface sections, in particular formed thereon, for example moulded thereon. For example, the counter latching structure is a wall or wall surface, for example a recess in the relevant surface section.

Preferably, the riveting device has a riveting tool and a drive device present in the housing part for actuating the riveting tool. In this case, the improved riveting device is designed so that the riveting tool is arranged on one longitudinal end of the housing part and the collection container is arranged on an opposing longitudinal end of the tubular housing part.

In a further embodiment, the riveting device is formed as a hand riveting device and comprises a handle part, which for example has a longitudinal extension transverse to the rotational axis. For example, the handle part is formed on a device housing comprising the housing part, in particular moulded thereon. The riveting device can be held in the hand or manually guided by the handle part. In particular, the handle part allows the riveting device to be positioned manually at a point to be riveted.

According to one aspect, a collection container for rivet mandrel remnants is proposed. In particular, the collection container is suitable to be used as a collection container for the above-described riveting device. The collection container comprises, for example, a base body performing a container function and a fixing connection for fixing on a riveting device, for example the above-described riveting device.

In one embodiment, the fixing connection is set up to form a fixing mechanism with a fixing connection of the riveting device in such a way that the collection container is to be brought into a fixing position on the riveting device by a translational movement with respect to the riveting device along a spatial axis, and that the collection container is to be released from the fixing position by a rotational movement with respect to the riveting device around the spatial axis.

In particular, the collection container comprises at least individual or all features of the collection container for the above-described riveting device. In this respect, the advantages described above in the context of the riveting device can be achieved with the collection container.

• • According to another aspect, a method for mounting and removing a collection container for rivet mandrel remnants is proposed. For example, the collection container is the above-described collection container for rivet mandrel remnants. The method comprises steps for
  • i) providing a riveting device, in particular the above-described riveting device;
  • ii) translationally moving the collection container along a spatial axis into a fixing position on the support structure of the riveting device;
  • iii) rotating the collection container with respect to the support structure around the spatial axis in order to release the collection container from the fixing position on the support structure.

Therefore, mounting and removing the collection container is possible for a user in a simple manner and with relatively low effort.

Further characteristics and features result from the following description of two exemplary embodiments with reference to the drawing.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 shows an exemplary embodiment of a riveting device having a collection container for rivet mandrel remnants and a support structure for the collection container, as a schematic representation in a side view,

FIG. 2 shows the exemplary riveting device in an enlarged section in the region of the collection container, as a schematic representation in a perspective representation,

FIGS. 3 and 4 show the exemplary riveting device in a section in the region of the collection container in a state shortly before mounting the collection container on the riveting device,

FIG. 5 shows the exemplary riveting device of FIG. 1 in a sectional representation, wherein the collection container is located in a state plugged onto the riveting device, before a snap connection is created,

FIG. 6 shows the exemplary riveting device in the representation of FIG. 5, wherein the collection container is in a final mounting position on the riveting device, owing to a snap connection being created,

FIG. 7 shows the exemplary riveting device of FIG. 1 in a sectional representation along the section line X-X of FIG. 6 and the collection container on the riveting device,

FIG. 8 shows the exemplary riveting device in the representation of FIG. 7, wherein the collection container is released from the fixing position by a rotational movement with respect to the support structure,

FIG. 9 shows another exemplary embodiment of a riveting device having a collection container for rivet mandrel remnants and a support structure for the collection container in a sectional representation according to FIG. 7, and

FIG. 10 shows the further exemplary riveting device in the representation of FIG. 9, wherein the collection container is released from the fixing position by a rotational movement with respect to the support structure.

DETAILED DESCRIPTION

FIG. 1 shows an exemplary embodiment of a riveting device 1 that is also referred to as a setting device by experts. The exemplary riveting device is suitable for applying or setting rivets according to the blind riveting method, and in this regard is designed for using blind rivets.

The exemplary riveting device 1 comprises a riveting tool 30 and a drive device (not shown in FIG. 1) for actuating the riveting tool 30. Preferably, the riveting tool 30 is assigned to a tool housing 40. Preferably, the drive device is assigned to a device housing 50, in particular received therein. Preferably, the tool housing 40 is a metal housing. Preferably, the device housing 50 is a plastic housing.

The exemplary riveting device 1 can be a hand riveting device. The hand riveting device 1 has a gripping surface 61 for example which can be formed at least partially on the device housing 50. For example, the hand riveting device 1 has a handle part 60 which is at least partially formed by the device housing 50. The riveting device 1 can be held in the hand by the gripping surface 61 or the handle part 60 when it is used for setting a rivet, in particular a blind rivet, on a workpiece. The riveting process as such then takes place by actuating the riveting tool 30 via the drive device.

For example, the drive device is an electromechanical drive device which comprises an electric motor (not shown in FIG. 1), for example. A preferably replaceable electrical energy storage device, such as an accumulator 70, can be provided for the electrical energy supply of the drive device, which energy storage device is arranged, for example, in the region of an end of the handle part 60 facing away from the riveting tool 30. Therefore, the riveting device 1 can be a cordless tool. In principle, the drive device can also be a pneumatic drive device having a pneumatic drive or a hydraulic drive device having a hydraulic drive.

The riveting tool 30 can comprise a mouthpiece 31 and a mandrel holder (not shown in FIG. 1) that can be moved with respect to the mouthpiece 31 in the direction of an operative axis W. For example, the mouthpiece 2.1 is fixed to the tool housing 40, for example screwed to it. Preferably, the mandrel holder is received in the tool housing 40 so as to be moveable in the direction of the operative axis W. For example, the tool housing 40 has an elongate, in particular tubular base body. In this respect, the tool housing 40 is also referred to as a setting sleeve by experts. For example, the mouthpiece 31 is fixed on one end of the tool housing 40 and the opposing end faces towards the device housing 50.

The mouthpiece 31 serves, for example, to receive a rivet (not shown in FIG. 1) to be set, in particular a blind rivet, and preferably has a through hole, in order to insert the rivet mandrel of the rivet therein. The mandrel holder serves, for example, to fix the rivet mandrel, so that a non-displaceable connection between the received rivet mandrel and the mandrel holder is created. For example, the riveting device 1 has a through hole (not shown in FIG. 1) which leads from the mandrel holder into a collection container 2. For example, in this manner a mandrel removal path is realised, wherein the collection container 2 can serve as a collector for rivet mandrel remnants.

For example, the collection container 2 is a plastic container and has or consists of a plastic material. For example, the collection container 2 has a base body 2.1 which performs a container function (FIG. 5). For example, the collection container 2 has an opening 2.2 on one end, via which rivet mandrel remnants can be received from the collection container 2 (FIG. 4). For example, the collection container 2 is cylindrical. For example, the collection container 2 has a round cross-section. For example, the collection container 2 is elongate and extends with its longitudinal extension along the rotational axis A when it is fixed to the riveting device 1. For example, the collection container 2 is then arranged coaxially to the rotational axis A and/or to the operative axis W.

In relation to the basic construction and the basic functioning of the riveting device 1 and in particular the collection container 2, the German patent application with the official file number DE 10 2022 116 431.4 is referred to for the purpose of the completion and expansion of the present disclosure, with the note that the patent application may attribute a meaning to identically worded terms which differs from the present meaning.

In the exemplary riveting device 1, a support structure 3 is provided for example, on which the collection container 2 is fixed, i.e. it is located in a fixing position B. The support structure 3 can be arranged on a housing part 16, for example, of the device housing 50, in particular can be formed thereon or can be formed by the housing part 16. For illustration purposes, FIG. 2 shows the exemplary riveting device 1 in an enlarged section in the region of the collection container 2 and the support structure 3 or the housing part 16 in a perspective representation. There, the collection container 2 is located in the fixing position B on the support structure 3.

For example, the housing part 16 is tubular. For example, the housing part 16 is elongate. For example, the housing part 16 surrounds the operative axis W and/or is arranged coaxially to the operative axis W. For example, the housing part 16 has a round, in particular circular cross-section and extends with its longitudinal extension in the direction of the operative axis W. For example, in the housing part 16 a drive element (not shown in FIG. 1) of the drive device is accommodated, which is set up to be moved along the operative axis W, in order to drive the mandrel holder.

In the exemplary riveting device 1, a fixing mechanism is provided for example, by means of which the collection container 2 is to be released from the fixing position B on the support structure 3 or is to be brought into the fixing position B on the support structure 3. The fixing mechanism is preferably set up in such a way that the collection container 2 is to be brought into the fixing position B on the support structure 3 by a preferably exclusively translational movement with respect to the support structure 3 along a spatial axis A. In FIG. 1, the translational movement or mounting movement is indicated by way of example with the arrow 80. In particular, as can be seen therefrom, the spatial axis A can lie on the operative axis W or coincide with the operative axis W.

The fixing mechanism is more preferably formed in such a way that the collection container 2 is to be released from the fixing position B by a rotational movement with respect to the support structure 3 around the spatial axis A. In FIG. 1, this rotational movement or removing movement is indicated by way of example with the arrow 90. After performing the removing movement, the collection container 2 is released from the fixing position B and can be removed from the support structure 3 and emptied at a target location and/or stored.

FIGS. 3 to 8 illustrate examples of a possible design and/or functioning of the fixing mechanism. FIGS. 3 and 4 show an example of the collection container 2 and the support structure 3 in a state removed from each other, in different perspective representations. FIGS. 5 and 6 each show the collection container 2 in a state during mounting (FIG. 5) and in a final mounted state on the support structure 3 (FIG. 6) in a sectional representation along the rotational axis A, in which the collection container 2 is located in the fixing position B. FIGS. 7 and 8 each show the collection container 2 in the fixing position B (FIG. 7) and the collection container 2 in a state released from the fixing position B (FIG. 8) in a sectional representation transverse to the rotational axis A.

For example, the fixing mechanism comprises a fixing connection 5 which is assigned to the collection container 2, in particular arranged thereon, for example is moulded thereon. For example, the fixing mechanism further comprises a fixing connection 6 which is assigned to the support structure 3, in particular arranged thereon, for example is moulded thereon. Preferably, the fixing connections 5, 6 are set up to form a snap connection 20 to each other in the fixing position B (FIG. 6).

In the present disclosure, a “snap connection” is understood to mean a preferably releasable form-fitting and/or frictional connection of two connecting pieces by using the material elasticity of at least one of the connecting pieces, preferably without an additional joining element.

Preferably, one of the fixing connections 5, 6, in particular the fixing connection 5 assigned to the collection container 2, has a latching projection 7. For example, the latching projection 7 is a latching lug which is formed in a nose shape in the direction of the spatial axis A. Preferably, the other fixing connection, in particular the fixing connection 6 assigned to the support structure 3, has a recess 8 which can be used as a push pull structure for the latching projection 7.

Preferably, the fixing connections 5, 6 are set up that the collection container 2 is blocked in the snap connection 20 in the direction along the spatial axis A against release from the support structure 3. For example, the recess 8 has a latching edge 8.1 or snap edge extending transverse to the spatial axis A. For example, the latching edge 8.1 forms an edge, in particular radial outer edge of a wall surface of the recess 8. For example, the latching projection 7 is engaged or snapped on or around the latching edge 8.1 or against the assigned wall surface when the snap connection 20 is produced.

For example, the latching projection 7 is arranged on a resilient snap lug 12, in particular formed thereon, for example moulded thereon. For example, the snap lug 12 is arranged on the collection container 2, in particular moulded thereon. For example, the snap lug 12 protrudes over the edge of the opening 2.2 of the collection container 2 in the axial direction relative to the rotational axis A.

In the exemplary riveting device 1, the resilient snap lug 12 is provided twice. The resilient snap lug 12 and another resilient snap lug 13 are present. Preferably, the other snap lug 13 is similarly arranged on the collection container 2, in particular moulded thereon. Preferably, the other snap lug 13 has another latching projection 7′, which can be formed, for example, in an identical manner to the latching projection 7. Preferably, the other fixing connection 6 has another recess 8′ which can be used as a push pull structure for the other latching projection 7′. The other recess 8′ can be formed in an identical manner to the recess 8.

Preferably, the resilient snap lugs 12, 13 extend with their longitudinal extension in the direction of the spatial axis A and are present in relation to the spatial axis A at a radial distance from each other and are formed to be sprung towards each other or away from each other. Preferably, the resilient snap lugs 12, 13 act in the fixing position B from the outside against the circumference of the other fixing connection 6, i.e. the fixing connection 6 assigned to the support structure 3.

In particular, as can be seen from FIGS. 3 and 4, the recess 8 or 8′ can be arranged on or in a surface section 17 or 18 of the housing part 16, which is flat and extends flattened in relation to the outer circumference of the housing part 16. For example, in relation to the cross-section of the housing part 16, the surface sections 17, 18 are formed on opposite sides of the outer circumference and extend, for example, preferably parallel to each other. For example, the surface sections 17, 18 each have a region which is formed as a run-up slope 19 or 19′. Therefore, when mounting the collection container 2, it is easier to push on the snap lugs 12, 13 with their respective latching lug 7 or 7′.

In particular, as can be seen from FIGS. 3 and 4, the support structure 3 or the housing part 16 can have a circumferential wall surface 14 around the spatial axis A which corresponds to a circumferential surface 15 of the collection container 2. Preferably, the wall surface 14 and the circumferential surface 15 are set up to overlap each other in the fixing position B and form a plug connection.

In order to release the collection container 2 from the fixing position B on the support structure 3, i.e. to be able to remove it from the support structure 3, in the exemplary riveting device 1, the fixing mechanism is formed in such a way that this is caused by a rotational movement of the collection container 2 with respect to the support structure 3 around the spatial axis A.

In the exemplary riveting device 1, the fixing mechanism is set up, for example, so that the collection container 2 can be released from the fixing position B on the support structure 3 or the snap connection 20 with the support structure 3 by applying a predetermined torque, and in this manner the collection container 2 is to be removed from the support structure 3. Preferably, the fixing mechanism is also set up so that the collection container 2 is blocked against rotation around the spatial axis A relative to the support structure 3 up to a predetermined torque, i.e. there is a rotary lock. Therefore, the collection container 2 only moves out from the fixing position B when the predetermined torque is exceeded and therefore the rotary lock is overcome.

In order to achieve the rotary lock, the recess 8 or 8′, for example, is closed at the end in the circumferential direction relative to the spatial axis A in the exemplary riveting device 1. For example, the recess 8 or 8′ is delimited in the circumferential direction relative to the spatial axis A by side wall surfaces spaced apart from each other, between which the latching projection 7 or 7′ is in the fixing position B or if there is a snap connection 20.

In order to overcome the rotary lock by exceeding the predetermined torque, and thus to release the collection container 2 from the fixing position B on the support structure 3, the latching projection 7 or 7′ and/or the recess 8 or 8′ is provided on at least one end section 9 or 9′ with a rounded contour 11 in the circumferential direction relative to the spatial axis A. Therefore, the blocking effect caused by engaging the latching projection 7 or 7′ into the recess 8 or 8′ is reduced in the circumferential direction relative to the spatial axis A.

For example, as can be seen from FIGS. 7 and 8, both the latching projection 7 or 7′ as well as the recess 8 or 8′ can be provided on one end section 9 or 9′ or on both end sections 9, 10 or 9′, 10′ with such a rounded contour 11 in the circumferential direction relative to the spatial axis A. For example, in the latching projection 7 or 7′, the rounded contour 11 is curved outward. For example, in the recess 8 or 8′, the rounded contour 11 is curved inward. For example, the rounded contour 11 of the latching projection 7 or 7′ and the rounded contour 11 of the recess 8 or 8′ correspond to each other.

FIG. 9 shows an example of a further embodiment of a riveting device l′in the sectional representation according to FIG. 7. Components of the further exemplary riveting device 1′ which are structurally or functionally identical to components of the exemplary riveting device 1 of FIGS. 1 to 8 are provided with the same reference numerals; in this respect reference is made to the description of the exemplary riveting device 1 of FIGS. 1 to 8.

The further exemplary riveting device 1′ differs from the exemplary riveting device 1 of FIGS. 1 to 8 in that the at least one latching lug 7 or 7′ and/or the associated push pull structure 8 or 8′ is provided on the at least one end section 9 or 9′ with a slanted contour 21 in the circumferential direction relative to the spatial axis A. In FIG. 9, the fixing position B is illustrated by way of example. FIG. 10 shows the state analogous to FIG. 8 in which the collection container 2 is released from the fixing position B by a rotational movement with respect to the support structure 3.

For example, it can be seen that both the latching projection 7 or 7′ as well as the recess 8 or 8′ can be provided on one end section 9 or 9′ or on both end sections 9, 10 or 9′, 10′ with such a slanted contour 21 in the circumferential direction relative to the spatial axis A. For example, in the latching projection 7 or 7′, the slanted contours 21 of both end sections 9, 10 extend outward diagonal to each other. For example, in the recess 8 or 8′, the slanted contours 21 of both end sections 9, 10 extend inward diagonal to each other. For example, the slanted contour 21 of the latching projection 7 or 7′ and the slanted contour 21 of the recess 8 or 8′ correspond to each other.

The fixing mechanism provided in the exemplary riveting device 1 and the other exemplary riveting device l′ makes it possible that the collection container 2 can be pushed or attached onto the support structure 3 by a translational movement in the direction of the spatial axis A by a user (for example FIG. 5) and, in a final position on the support structure 3, this results in latching of the latching projections 7, 7′ in the associated recesses 8, 8′ (for example FIG. 6). In this final position, the above-described fixing position B is achieved in which the fixing connections 5, 6 are in the snap connection 20 with each other and the collection container 2 is fixed on the support structure 3.

The fixing mechanism provided in the exemplary riveting device 1 and the other exemplary riveting device 1′ also makes it possible to release the latching connection 20 by applying a torque around the spatial axis A via a predetermined force value, in which the latching projections 7, 7′ and the associated recesses 8, 8′ are pushed away from each other by the torque applied via the at least one rounded contour 11 or the at least one slanted contour 21, and therefore achieve disengagement from each other, i.e. an unlocking takes place. Releasing the snap connection 20 with lower force effort can be achieved by the rotational movement than for example is the case when releasing counter to the snapping direction, i.e. counter to the mounting movement along the spatial axis A.

REFERENCE NUMERAL LIST

• • 1, 1′ riveting device
  • 2 collection container
  • 2.1 base body
  • 2.2 opening
  • 3 support structure
  • 5 fixing connection (collection container)
  • 6 fixing connection (support structure)
  • 7, 7′ latching projection
  • 8, 8′ recess
  • 8.1 latching edge
  • 9, 9′ end section
  • 10, 10′ end section
  • 11 rounded contour
  • 12 snap lug
  • 13 snap lug
  • 14 wall surface
  • 15 circumferential surface
  • 16 housing part
  • 17 surface section
  • 18 surface section
  • 19, 19′ run-up slope
  • 20 snap connection
  • 21 slanted contour
  • 30 riveting tool
  • 31 mouthpiece
  • 40 tool housing
  • 50 device housing
  • 60 handle part
  • 61 gripping surface
  • 70 accumulator
  • 80 arrow
  • 90 arrow
  • A spatial axis
  • W operative axis
  • B fixing position