WO2019166435A1

WO2019166435A1 - Fastening device

Info

Publication number: WO2019166435A1
Application number: PCT/EP2019/054735
Authority: WO
Inventors: Sven Binkert
Original assignee: A. Raymond Et Cie
Priority date: 2018-03-01
Filing date: 2019-02-26
Publication date: 2019-09-06
Also published as: DE102018001594A1

Abstract

The invention relates to a fastening device for connecting a first part to a second part having an opening, with a blocking element which has at least one contact surface for contact against the second part, and with a guide cage which extends along a longitudinal axis from a head region to a foot region and which, in the head region, has a contact portion for contact against the first part and the foot region of which is suitable for guiding through the opening in the second part and which has at least two struts which extend in the direction of the longitudinal axis, wherein the blocking element can be arranged in different positions in the guide cage and, in a first position, is arranged in the guide cage in such a manner that the contact surface of the blocking element is located at least predominantly, particularly preferably entirely, on one side of a plane connecting the two struts of the guide cage and, in a second position, is arranged in the guide cage in such a manner that the contact surface of the blocking element is located at least predominantly, particularly preferably entirely, on the other side of the plane connecting the two struts of the guide cage, wherein the blocking element can be transferred from the first position into the second position by a movement comprising rotation of the blocking element about the longitudinal axis, wherein the movement of the blocking element from the first position into the second position is a movement which is assembled from a plurality of partial movements and which comprises, as one partial movement, rotation of the blocking element about the longitudinal axis and which comprises, as another partial movement, a linear movement of the blocking element along the longitudinal axis, wherein, as part of the linear movement, the blocking element overcomes a projection which projects into the space in which the blocking element carries out its linear movement.

Description

Befestiqunqsvorrichtunq

The invention relates to a fastening device for connecting a first part to a second part having an opening, a device having a first part and a second part having an opening, a use of an aforementioned fastening device and a method for connecting a first part to a second part , an opening part.

Fasteners are used, for example, in the automotive industry to connect a first part to a second part having an opening.

The first part can be a component which is to be fastened to or connected to a carrier - the second part.

There are known fastening devices which have a blocking element in a guide cage.

It has been found that there is a need for a fastening device which is simple in construction over the prior art fasteners, can be easily preassembled on the first and / or second part, easily detached from the first and / or second part can be, within certain limits presettable tightening force or compression between the can perform both parts and / or can compensate for tolerances when inserting into the opening of the second part.

The object of the invention is to provide a fastening device, a device having a first part and a second part having an opening, a use of a fastening device and a method for connecting a first part to a second part having an opening, with or the at least one of the stated advantages can be achieved

The object is achieved by the subject matter of the independent claims. Advantageous embodiments are given in the subclaims and the following description.

The invention in a first aspect is based on the basic idea of moving a blocking element relative to a guide cage in such a way that the blocking element carries out a movement composed of a plurality of partial movements between two positions, wherein the partial movements can be assigned different functions or effects. For example, a partial movement allow a bias of one of the two parts, in particular of the first part. Alternatively or additionally, a voltage can be generated by a linear movement. For example, the blocking element may be moved such that it is moved in the direction of a contact section of the guide cage, and components located between the blocking element and the contact section are compressed. Due to the combined movement, it is additionally or alternatively possible for the blocking element to be moved linearly prior to its rotation, which is used, for example, to swivel out a contact surface from the guide cage.

The invention in a first aspect provides a fastening device for connecting a first part to a second part having an opening. The fastening device has a blocking element which has at least one contact surface for engagement with the second part. Furthermore, the fastening device has a guide cage which extends along a longitudinal axis from a head region to a foot region. The guide cage has in the head area on a plant section to rest on the first part. The foot area is adapted to be passed through the opening of the second part. The guide cage also has at least two struts which extend in the direction of the longitudinal axis. The blocking element can be arranged in different positions in the guide cage. It is arranged in a first position in the guide cage, that the contact surface of the blocking element at least a majority, especially preferably entirely on one side of the two Struts of the guide cage connecting level is located. In a second position, the blocking element is arranged in the guide cage, that the contact surface of the blocking element is at least majority, especially preferably entirely on the other side of the two struts of the guide cage connecting plane. The blocking element can be transferred from the first position to the second position by a movement which includes a rotation of the blocking element about the longitudinal axis. The movement of the blocking element from the first position to the second position is a movement composed of a plurality of partial movements, which as a partial movement has a rotation of the blocking element about the longitudinal axis. As another partial movement, movement of the blockage element includes linear movement of the blockage element along the longitudinal axis, the blockage element, as part of the linear movement, overcoming a projection which projects into the space in which the blockage element makes its linear movement.

A first part may be a component or a component, in particular in the field of vehicle construction, preferably in the automotive industry, which may be designed in the form of a module. In particular, the first part can be an aggregate carrier, a part of a casing, and more particularly a loudspeaker module, a part of a window regulator mechanism, or a part of a window regulator mechanism module or the like. The first part may in particular comprise a, preferably plate-shaped, organo sheet (OS) which may comprise several layers of fibers or fiber tapes.

The second part may be a component, in particular in the field of vehicle construction, preferably in the automotive industry, to which one or more modules, components or components, in particular in the form of the first part, can be attached. In particular, the second part may be part of a door construction or a door of a vehicle, preferably an automobile.

A blocking element may be an element that can be moved in the guide cage or on the guide cage along. For this purpose, the blocking element can be moved in particular by means of a further element. The blocking element can in particular block a movement of the second part, in particular a movement of the second part away from the first part, or come into contact with the second part and exert a force on the second part. The blockade element may in particular be block-shaped or block-shaped. The blocking element can in particular be designed as a counterpart of a screw, preferably as a nut.

A contact surface of the blocking element can have a planar configuration. The term "area", however, is functional. With the "area" it is sufficient that there are several investment points that can get into the second part of the plant. The abutment surface may be a portion of a surface of the blocking element which need not be separated from the remainder of the surface by structuring. In particular, the contact surface can be a surface which, when the blocking element is arranged in the guide cage, faces the head region of the guide cage. The contact surface can be rotated with the blocking element from the guide cage, in order then to get into contact with the second part. As a result of the rotation of the blocking element about the longitudinal axis, the blocking element can protrude at least partially out of the guide cage, wherein a rigid surface for the abutment against the second part can be present. It can be formed on the blocking element at least two contact surfaces, which may be formed substantially symmetrically to the guide cage for abutment with the second part.

The guide cage is a functional component in or on which the blocking element can be positioned, the guide cage in particular may have means on which or along which the blocking element abut or can be guided on the guide cage. The guide cage can be rectangular with respect to its base. The guide cage may have a bottom in the foot region, which may have an opening. On two opposite sides of the bottom of the guide cage may be formed in particular a clip, wherein each of the two sides may have two struts. On the two sides, a contact section can be formed following the struts in the head region. The two opposite sides can be formed symmetrically, in particular point-symmetrical to the longitudinal axis. On the other two sides of a rectangular guide cage, in each case a wall may be formed, of which either at least one, in particular preferably each, has at least one projection which projects into the space in which the blocking element executes its linear movement.

The abutment section is a section that can be brought into abutment with the first part. The abutment section may comprise a tab which may come into abutment with the first part. The fastening device may be connected to the first part by means of the plant section; it is possible that the abutment portion is formed for a positive connection with the first part, in which the fastening device can be pushed in a direction on the first part, which may have an angle to the longitudinal axis of the guide cage. It is additionally or alternatively possible that the contact portion may be integrally connected or glued to the first part. In a preferred embodiment, the abutment portion may comprise an abutment-like acting portion, preferably in the form of the tab, with which the guide cage on the first part is supported when a force is exerted on the guide cage in the direction of the first part. This force can be provided by means of an element engaging with the guide cage and / or the blocking element, which can engage, for example, the first part, in particular at an opening provided in the first part, in engagement with the guide cage and / or the blocking element to get. The element may in turn be supported on the surface of the first part, which faces away from the surface of the first part which faces the abutment section. It can be provided that the element engages in the blocking element and is supported on the first part and a linear movement of the blocking element is used to secure or pre-assemble the fastening device to the first part. The element may be designed as a screw having a thread corresponding to a thread on the blocking element and upon rotation of the screw the blocking element is imparted a movement.

In one embodiment, the contact section can be structured corresponding to an embodiment of the first part corresponding to the first part. For example, the abutment portion may comprise a recess or a projection, with which the guide cage can be brought into abutment corresponding to a correspondingly formed projection or recess of the first part. Thus, the guide cage and thus the fastening device can be aligned with the first part and / or held against rotation.

The foot region of the guide cage is suitable for being guided through the opening of the second part, wherein the foot region does not necessarily have to be made smaller with its projection surface transverse to the longitudinal axis than the opening, but it is also possible for the fastening device to engage with the foot region an angle is introduced through the opening in the second part, so that the insertion direction and the longitudinal axis of the fastening device do not coincide.

For the purposes of the description, a rotation of the blocking element about the longitudinal axis in a partial movement comprises a rotation of at least 30 °, preferably at least 40 °, particularly preferably at least 50 °, particularly preferably at least 60 °, very particularly preferably at least 70 °, in particular very particularly preferred at least 80 °. In a preferred embodiment, the blocking element is rotated by 90 ° in a partial movement. It can be provided that the blocking element performs only a partial movement as part of its movement from the first position to the second position, in which the blocking element is rotated. It can also be provided that as part of the movement of the blocking element of the first position in the second position, a plurality of partial movements may be present with a rotation of the blocking element about the longitudinal axis.

For the purposes of the description, a plane connecting the two struts of the guide cage comprises a plane which runs essentially parallel or at a small angle of less than 20 ° to the longitudinal axis of the guide cage. The plane can be considered as a window of the guide cage between two struts through which the abutment surface of the blocking element can emerge from the guide cage. The contact surface may have a normal, which extends substantially parallel or at an angle significantly greater than 90 °, in particular greater than 130 °, to the plane connecting the two struts of the guide cage.

The possibility of a movement of the blocking element composed of several partial movements from the first position to the second position is provided in particular by a corresponding configuration of the blocking element and the guide cage. Blocking element and guide cage are designed to allow movement of the blocking element from the first position to the second position, wherein this movement is composed of a plurality of partial movements movement. Furthermore, the blocking element and guide cage are configured to allow partial movement of the composite movement, which is a rotation of the blocking element about the longitudinal axis. Furthermore, the blocking element and the guide cage can be designed in such a way as to permit a different partial movement, which is a linear movement of the blocking element along the longitudinal axis. Further, a projection may be provided such that the blocking element overcomes the projection during the linear movement and the projection projects into the space in which the blocking element performs its linear movement. The design of the blocking element and the guide cage can allow forcibly guided movement of the blocking element in or on the guide cage when a force is exerted on the blocking element which has both a rotational and a translatory component.

The invention provides that the blocking element as part of a linear movement overcomes a projection which projects into the space in which the blocking element performs its linear movement. In order for the blocking element to be able to overcome the projection, it is conceivable to carry out the blocking element at least in the area in which it comes into contact with the projection and / or the projection itself with an elasticity,

• The up to a predetermined level of force with which the blocking element is pressed or pulled against the projection, the blockage element retains, with the result that the linear movement is terminated or interrupted despite applying a force, and • From this predetermined level, a compression of the projection and / or the area of the blocking element, with which it comes into contact with the projection, allowed and thus allows the blocking element to overcome the projection.

Comparable can be achieved when the projection is held by a spring-loaded in a recess of another element element, for example, the projection is formed by a ball which sits in a recess of an element, such as a wall of the guide cage, and by a spring in a is held over the wall protruding position and can be pressed by a spring force counteracting force deeper into the recess. By the choice of the spring, the predetermined level of force can be adjusted to which the blocking element is retained despite pushing or pushing with a force from the projection and from which the blocking element can overcome the projection by pushing or pushing with a force.

So that the blocking element can overcome the projection, but it is also conceivable, for example, to provide the projection on an element of the guide cage, which changes its position relative to other elements resiliently. For example, the projection may be provided on a wall of the guide cage, which is resiliently connected to another element of the guide cage, for example via a bending section in the other element, for example, passes over a bottom of the guide cage. By the elasticity of the resilient connection, for example, the bending portion, the predetermined level of force can be adjusted to which the blocking element is retained despite pressing or pushing with a force from the projection and from which the blocking element by pushing or pushing with a force Can overcome the lead.

In a particular embodiment it can be provided that the blocking element overcomes the projection in which it permanently deforms it or even separates the projection from an element on which it is formed. For example, the projection may be formed in a spherical or bead-shaped manner, wherein the projection is permanently deformed from a predetermined level of force, in particular permanently pressed into the surface of the element on which it is embodied, or torn off the surface. In a particular embodiment it can be provided that the blocking element does not overcome the projection in that it permanently deforms it or even separates the projection from an element on which it is formed, but that the projection by spring back and / or the area of the blocking element , which comes into contact with the projection, by spring-back the shape and / or frictional connection between the blocking element and the projection picks up and it Blockade section allows to overcome the projection and continue its linear movement.

The predetermined level of force to which the blockage member is retained with a force from the projection despite pushing or pushing, and from which the blocking element can overcome the projection by pushing or pushing with a force, is selected depending on the function associated with the Retention and then the overcoming of the projection on the increase of the force over the predetermined level to be achieved.

Retention of the blocking element by positive and / or frictional engagement with the projection despite the fact that a force pushing or pushing the blocking element can be used to generate a prestressing with which the guide cage is held on the first part.

If an element with a contact surface, for example a screw with a surface of the plunger head abuts against the first part, a force is generated which pulls or pushes the blocking element onto the contact surface of the element, for example onto the screw head, and arrives at the blocking element due to a linear movement induced thereby in abutment with the projection, the blocking element presses the guide cage over its abutment against the projection in the direction of the first part while the force is maintained. The guide cage is pressed with a force corresponding to the applied bias against the first part. By choosing the level of force to which the blockage member is retained with a force by the projection despite pushing or pushing and from which the blocking element can overcome the projection by pushing or pushing with a force, it can be determined with which maximum Preload the guide cage against the first part can be pressed. The level of force may be, for example, in the range between 1000 to 4000 N, more preferably between 1500 and 3000 N, and most preferably from 2000 to 2500 N.

It can be provided that the blocking element comes into contact with the projection when carrying out a linear movement with its contact surface, or an edge delimiting the contact surface.

In a further embodiment, the abutment section provided in the head region of the guide cage for abutment with the first part may also have a support surface which faces the foot region of the guide cage and which is provided on the second part for supporting the abutment section. In such an embodiment, it is possible that the second part between the support surface of the Anlageabschnitts, which then rests on one side of the second part, and the abutment surface of the blocking element, which then rests on the opposite side of the second part is held. Depending on the thickness of the second part and depending on the position of the support surface of the abutment portion relative to the contact surface of the blocking element, this holding can be a playful holding, for example to provide a captive, or it can be a clamping holding, in which the second part and the position of Guide cage to be fixed relative to each other. Both for the playful holding and for the clamping holding it is expedient to limit the freedom of movement of the blocking element relative to the contact section in a direction away from the contact section. This can be done by appropriate arrangement of a projection which projects into the space in which the blocking element will carry out a linear movement away from the contact section. If, for a given thickness of the second part and given thickness of the blocking element, the projection is farther away from the contact section, a play-related holding is made possible. On the other hand, for a given thickness of the second part and given thickness of the blocking element, clamping holding can be effected by selecting the distance between the projection and the abutment portion equal to or less than the sum of the thickness of the second member and the thickness of the blocking member.

In such an embodiment, in which a second part play or clamping, in particular preferably clamped between a support surface of the abutment portion and the abutment surface of the blocking element, the choice of the predetermined level of force, up to which the blocking element despite pushing or pushing with a Force is retained by the projection and from which the blocking element can overcome the projection by pushing or pushing with a force to be used to set the maximum load level, to which the second part is still held by play, or clamped to the guide cage , The level of the force can be chosen, for example, very low, for example in the range of 1 to 100 N. It can also be provided that high forces are necessary, ie forces of more than 1000 N.

It can be provided that the blockade element comes in the implementation of a linear movement with a rear side, or the abutment surface bounding edge into abutment with the projection, wherein a rear side is a side of the blocking element, which is opposite to the side on which the contact surface is executed. The back side points away from the contact surface.

In a preferred embodiment, the blocking element is guided in its linear movement of a guide surface of one of the two struts. The guide may allow the blockage member to substantially engage performs translational movement during the linear movement. In addition, a guide on a guide surface allows as quiet and / or undisturbed linear movement of the blockage element.

If the description refers to figures for elements, these also include, unless expressly stated or directly apparent from the context, the provision of a larger number of elements than the stated number.

The guide cage may have not only two struts, but a plurality of struts, that is three, four, five, etc. The blocking element may be guided on the existing struts or a smaller number of struts in the linear movements. It may be sufficient that the blocking element is guided in a linear movement of only one strut and a strut has a guide surface for the blocking element. In a preferred embodiment, the guide cage on four struts, which may each have a guide surface for the blockade element in the linear movement.

In a preferred embodiment, the guide cage has a first strut, a second strut and a third strut. It can be provided that the movement of the blocking element composed of a plurality of partial movements as a partial movement has a first linear movement of the blocking element, in which the blocking element is guided between the first strut and the second strut. The composite movement may comprise as a further partial movement a second linear movement of the blocking element, in which the blocking element is guided between the second strut and the third strut. As a result, a quiet guidance or quiet movement is possible without jamming or an uncontrolled movement of the blocking element. There are two separate linear movements of the blocking element possible, which may be assigned a different function or effect. For example, a prefixing and / or a prestressing can take place in the first linear movement. In the second linear movement, a final assembly or a complete fixation or the complete connection between the first and the second part can take place.

In a preferred embodiment, it may be provided that the movement of the blocking element composed of a plurality of partial movements provides that the blocking element is guided after a first partial movement, which contains the first linear movement of the blocking element, in which the blocking element is guided between the first strut and the second strut , as a second partial movement performs a rotation about the longitudinal axis, and then provides a third partial movement, which provides the second has linear movement of the blocking element, wherein the blocking element is guided between the second strut and the third strut. The struts can be used for linear motion guidance using the same or different post-rotation struts. It is possible that the struts have a different guide surface before and after rotation for the linear movement of the blocking element. Due to the three successive movements different effects of the blocking element are possible and adjustable. It is for example possible that the rotation of the blocking element can be used to rotate the contact surface of the blocking element out of the guide cage, so that it can come into contact with the second part. The first linear movement may be a movement in which the blocking element may be guided almost entirely in the guide cage, for example, to achieve a pre-assembly. Only with the subsequent rotation, it may be possible that the contact surface is rotated out of the guide cage to get into contact with the second part and perform the final assembly.

In a preferred embodiment it is provided that the blocking element as part of the first linear movement overcomes a projection which projects into the space in which the blocking element performs its first linear movement and / or that the blocking element as part of the second linear movement overcomes a projection which protrudes into the space in which the blockade element performs its second linear movement. This makes it possible that the fitter or operator feedback in the form of a tactile or haptic feedback is given, in which position the blocking element is located in the guide cage. Additionally or alternatively, it is possible that the blocking element after reaching a position is not or difficult returns to an already traversed position. It is possible with the projections to provide positions corresponding to a pre-assembly position and / or a final assembly position. For example, by means of the projection in the first linear movement, in particular in an area adjacent to the foot region, a position can be indicated in which the blocking element can not initially move on account of the projection. This projection may be used to apply a bias for pre-assembly or securing the attachment to the first part. The protrusion in the second linear movement, which may preferably be in an area adjacent to the head area, may be used to prevent the blockade element from leaving an end assembly position.

In a preferred embodiment it is provided that the blocking element as part of the first linear movement overcomes a projection that projects into the space in which the blocking element performs its first linear movement and that the blocking element as part of the second linear movement at least one projecting, tapering towards the foot of the guide cage barb happens that springs from a particularly far projecting end position in a less far protruding position when the blocking element passes him and springs back into the far projecting end position when the blocking element has passed it. In its far projecting end position, the barb protrudes into the space in which the blocking element performs its second linear movement. By using a barb at this location, the blocking element can be prevented from moving in the opposite direction to the second linear motion upon completion of the second linear motion.

In a preferred embodiment, the projection with respect to the first linear movement or the second linear movement is formed on a strut of the guide cage, so that a simplified fastening device can be formed, which requires no further separate components with respect to this embodiment. A more manageable construction is possible.

In a preferred embodiment, the guide cage has a guide wall which extends in the direction of the longitudinal axis, and along which the blocking element is guided for performing a linear movement by abutment against the guide wall, wherein the guide wall has a terminal edge at which the extension of the guide wall ends in the direction of the longitudinal axis, wherein the blocking element can perform a rotation about the longitudinal axis as soon as it has passed after a guided through the guide wall linear movement, the trailing edge. It can be provided that the guide wall is formed as part or portion of a strut. The guide wall may also be a portion of the guide cage extending independently of a strut. The end edge may be an edge delimiting a recess, which may in particular define a slot. The term "end edge" includes the structural design that the guide wall ends in this area and thus no contact surface is no longer available, which can counteract a rotational movement impressed on the blocking element.

In a preferred embodiment, the blocking element has a thread and a screw extending along the longitudinal axis engages the thread, the head of the screw projecting beyond the head region of the guide cage out of the guide cage. By means of the configuration that the blocking element has a thread, into which a screw engages with its thread, and the head protrudes beyond the head region of the guide cage out of the guide cage, the blocking element can be imparted with a movement in which the screw is rotated. By the rotation of the screw the blocking element is inherently imparted a rotational movement, wherein the Blockade element can be performed on the provided on the guide cage means. If the blocking element is in abutment with a guide wall, for example, a possible rotational movement of the blocking element is counteracted and the blocking element moves purely linearly.

According to a second aspect, a central idea of the invention is to provide a connecting step with which the fastening device can be prevented from being pulled out of the opening again after the opening of the second part has passed through.

The invention provides in a second aspect a fastening device for connecting a first part to a second part having an opening, wherein it may be provided that the aforementioned embodiments or embodiments of the first aspect of the invention can be linked to the second aspect. The embodiments and features of the fastening device mentioned with regard to the first aspect can be freely combined with the fastening device according to the second aspect. According to the second aspect, the fastening device has a blocking element, which has at least one abutment for abutment with the second part, and a guide cage. The guide cage extends along a longitudinal axis from a head region to a foot region and has in the head region an abutment section for abutment with the first part, wherein the foot region of the guide cage is adapted to be guided through the opening of the second part. The guide cage further has at least two struts which extend in the direction of the longitudinal axis. The blocking element can be arranged in different positions in the guide cage and be arranged in a first position in the guide cage, that the contact surface of the blocking element is at least majority, especially preferably entirely on one side of the two struts of the guide cage connecting plane and in be arranged in a second position in the guide cage, that the contact surface of the blocking element is at least a majority, in particular preferably entirely on the other side of the two struts of the guide cage connecting plane. The blocking element can be transferred from the first position to the second position by a movement which includes a rotation of the blocking element about the longitudinal axis. The guide cage has at least one projecting barb, which tapers towards the foot region of the guide cage, and which can deflect from a particularly far projecting end position into a less far-protruding position. In this way, a possibility can be created to initially hold the fastening device to the second part. The fastening device can not easily fall off the second part. There may be more than one barb provided, the arrangement of the barbs on the guide cage may be particularly symmetrical. Several barbs can be arranged axially symmetrical to each other. To simplify the production, it may be provided that two barbs are provided, which are arranged diagonally to each other on the guide cage.

According to a third aspect, the invention is based on the basic idea of providing a structuring in or on the contact element which in particular serves to prevent rotation of the fastening device on the first part. A structure may be provided which corresponds to a structure cooperating with the first part and which enables an interaction of such a structure with a corresponding structure on the first part.

According to a third aspect of the invention, the invention provides a fastening device for connecting a first part to a second part having an opening, wherein the aforementioned features of a fastening device according to a second or first aspect of the invention, without restriction and without restriction, with the fastening device according to the third Aspect can be combined. The fastening device according to the third aspect comprises a blocking element, which has at least one contact surface for engagement with the second part, and a guide cage. The guide cage extends along a longitudinal axis from a head region to a foot region. The guide cage has in the head area an abutment portion for abutment with the first part and the foot portion of the guide cage is adapted to be passed through the opening of the second part. Furthermore, the guide cage has at least two struts which extend in the direction of the longitudinal axis. The blocking element can be arranged in different positions in the guide cage and be arranged in a position in the guide cage, that the contact surface of the blocking element is at least majority, especially preferably entirely on one side of the two struts of the guide cage connecting plane and in a be arranged second position in the guide cage, that the contact surface of the blocking element is at least majority, especially preferably entirely on the other side of the two struts of the guide cage connecting plane. The blocking element can be transferred from the first position to the second position by a movement which includes a rotation of the blocking element about the longitudinal axis. The abutment portion is a tab extending at an angle to the longitudinal axis, the tab having a groove for receiving a protrusion provided on the first portion. In this way, a simply formed rotational or rotational security can be created, in which the contact portion and the second part can cooperate. The invention also provides a device with one of the aforementioned fastening devices having a first part and a second part having an opening. The guide cage engages through the opening of the second part and the abutment portion of the guide cage abuts against a surface of the first part and the abutment surface of the blocking element bears against a surface of the second part which abuts the surface of the first part against which the abutment portion of the first part abuts , is turned away. A simple arrangement for connecting the first and second part is possible.

The invention also provides a use of one of the aforementioned fastening devices for fastening a first part with a second part having an opening, wherein the guide cage engages through the opening of the second part and the abutment portion of the guide cage abuts a surface of the first part and the contact surface of the Blockade element rests against a surface of the second part, which faces away from the surface of the first part, on which abuts the contact portion of the first part.

Furthermore, the invention also provides a method for connecting a first part to a second part having an opening, using an aforementioned fastening device according to one of the aforementioned three aspects, wherein the fastening device comprises a blocking element, the at least one contact surface for abutment with the second part has, and has a guide cage. The guide cage extends along a longitudinal axis from a head region to a foot region. The guide cage has in the head area an abutment portion for abutment with the first part and the foot portion of the guide cage is adapted to be passed through the opening of the second part. The guide cage has at least two struts which extend in the direction of the longitudinal axis. The blocking element can be arranged in different positions in the guide cage and be arranged in a first position in the guide cage, that the contact surface of the blocking element is at least majority, especially preferably entirely on one side a plane connecting the two struts of the guide cage and in be arranged in a second position in the guide cage, that the contact surface of the blocking element is at least majority, especially preferably entirely on the other side of the two struts of the guide cage connecting plane. The blocking element is moved from the first position to the second position by a movement composed of a plurality of partial movements, wherein as a partial movement, a rotation of the blocking element is performed about the longitudinal axis and as a different part movement, a linear movement of the blocking element along the longitudinal axis is performed the Blockade element as part of the linear movement overcomes a projection which projects into the space in which the blocking element performs its linear movement.

With regard to the order or execution of the partial movements of the blocking element, it is possible that only one or more linear movements are provided as partial movements. Preferably, if more than one is provided, the linear movements may be directed in one direction. However, it is also possible that linear movements are provided which have a different direction of the blocking element in the guide cage. In a particularly preferred embodiment, the linear movements of the blocking element are such that the blocking element is moved from the foot region to the head region in the guide cage during the linear movement. However, it may also be a reversal of motion in the linear movements, so that a linear movement takes place first in one direction, then a rotation of the blocking element and further a linear movement of the blocking element in the opposite direction to the direction of the first linear movement.

In a preferred embodiment, the method uses a fastening device according to one of the three aspects of the invention.

The guide cage may comprise metal, a plastic or a composite material. Particularly preferably, the guide cage is made of a stamped part, in particular preferably by bending portions of the stamped part. The guide cage can also be made as an injection molded part.

The blocking element may comprise metal, a plastic or a composite material.

Embodiments are conceivable in which the blocking element is produced as an integral element of the guide cage. Particular preference is given in such an embodiment predetermined breaking points are provided, which are either broken at the beginning of the composite of several partial movements of the blocking element movement of the blocking element or broken in a separate step, for example, in preparation for the composite of several partial movements of the blocking element movement of the blocking element.

The invention will be explained in more detail with reference to drawings, which show only embodiments of the invention. It shows:

Fiq. 1 is an isometric view of a fastening device; Figure 2 is a sectional view of the fastening device according to Figure 1 from the side.

3 shows a guide cage of a fastening device according to FIG. 1 in an isometric view;

4 shows a blockade element of a fastening device according to FIG. 1 in an isometric view;

5 shows a fastening device according to FIG. 1 with a first part in side view in a partially cutaway view;

6 shows a view of a fastening device according to FIG. 1 with a first part in a view obliquely from below;

7 shows a fastening device according to FIG. 1 with a first and a second part with a blocking element in a first position;

8 shows a side view of the fastening device according to FIG. 1 with a first and a second part with a blocking element in a further position;

9 shows the fastening device according to FIG. 8 in a sectioned and broken-away view, in which the blocking element is in the position shown in FIG. 8;

FIG. 10 shows the fastening device according to FIG. 8 in a sectioned and broken-away illustration with an incipient rotational movement of a blocking element from the position shown in FIG. 9; FIG.

Figure 1 1, the fastening device according to Figure 8 in a sectional and broken-away view at the end of a rotational movement of a blocking element.

FIG. 12 shows a fastening device according to FIG. 1 with a blocking element in a further position; FIG.

FIG. 13 shows the fastening device according to FIG. 1 with a blocking element in a still further position; FIG.

14 shows a side view of a fastening device according to FIG. 1 in the position shown in FIG. 13 with the second part;

Fig. 15 is an isometric view of another embodiment of a fastening device according to the invention from a first perspective and

16 shows an isometric view of a further embodiment of a fastening device according to the invention from a second perspective.

The embodiment of the fastening device shown in the figures combines three aspects, each of which alone can be considered alone, without the need for an additional presence of one or both of the other aspects. The consideration of the three aspects in one embodiment is merely a simplified and compact representation. 1 shows in an isometric view a fastening device for connecting a first part 1 (cf., FIGS. 5 to 8 and 12 and 13) to a second part 2 having an opening (compare FIGS. 7, 8 and 12 to 14). The fastening device has a blocking element 3 and a guide cage 4.

The blocking element 3 has two mutually spaced bearing surfaces 5, which are shown hatched, for abutment against the second part 2. The contact surfaces 5 form sections of the head region 6 facing surface of the blocking element. 3

The guide cage 4 of the fastening device has a head region 6 and a foot region 7, the guide cage 4 extending along a longitudinal axis L from the head region 6 to the foot region 7. In the head region 6, the guide cage 4 has a contact section 8 on the right and a contact section 8 on the left, which are provided for engagement with the first part 2. The foot portion 7 of the guide cage 4 is adapted to be passed through the opening of the second part 2. Furthermore, the guide cage 4 four struts 9, which extend in the direction of the longitudinal axis L.

Each two of the struts 9 are on clip-like sides of the guide cage

4 each formed opposite to each other.

The blocking element 3 can be arranged in different positions in the guide cage 4, which will be described in more detail below. The guide cage 4 has for guiding the blocking element 3 during a movement of the blocking element 3 means which allow a predetermined movement of the blocking element 3 on the guide cage 4.

In the illustration shown in Figures 1 and 2, the blocking element 3 is arranged in a first position in the guide cage 4, that the contact surfaces 5 of the blocking element 3 are entirely on one side of the struts 9 of the guide cage 4 connecting plane E.

In the following it will be explained that the blocking element 3 can be arranged in a further position in the guide cage 4 such that the contact surface

5 completely on the other side of the two struts 9 of the guide cage 4 connecting plane E is (see Figure 1 1). The movement of the blocking element 3 from the position shown in FIGS. 1 and 2 into the position shown in FIG. 11 is a movement composed of a plurality of partial movements, as will be shown below with reference to the sequence of movements illustrated by the figures. In FIG. 11, it can be seen that the blocking element 3 has been transferred from the first position to the second position by rotation of the blocking element 3 about the longitudinal axis L (see FIGS. 9 and 10).

To move the blocking element 3 in the guide cage 4, a screw 10 is provided, wherein the blocking element 3 has an internal thread which corresponds to the external thread of the screw 10.

According to FIG. 5, the fastening device is arranged on a first part 1 and the screw 10 engages in the thread of the blocking element 3. The screw

10 also extends through the first part 1, wherein an opening in the first part 1 is provided, at the edge of a contact surface for the head of the screw 10 is formed. The head of the screw 10 protrudes beyond the head region 6 of the guide cage 4 out of the guide cage. 4

The guide cage 4 is arranged on the first part 1, that of the tab

1 1 formed bearing portion 8 has a groove 12 which receives a projection 13 of the first part 1.

If the screw 10 is rotated, the blocking element 4 can move in the guide cage 4 between the head area 6 and the foot area 7. The movement of the blocking element 4 is a linear movement provided that the blocking element 4 is at least in contact with a guide surface 14 which prevents rotation of the blocking element 3. The blocking element 3 can be guided on the guide surface 14, which are formed on the struts 9.

FIG. 5 shows a position of the blocking element 3 in the guide cage 4, in which the blocking element 3 encounters projections during its linear movement. The projections 15 protrude into the space in which the blocking element 3 performs its linear movement. The projections 15 initially prevent a possible further linear movement towards the head region 6 and the fastening device can be fixed to the first part 1.

In this state, the fastening device can be introduced together with the first part 1 in the opening of the second part 2. On the guide cage 4, two protruding, the foot portion 7 of the guide cage 4 towards tapered barbs 16 are provided, which can deflect from a particularly far projecting end position in a less prominent position. The barbs 16 are arranged substantially point-symmetrical to the longitudinal axis L. After insertion the fastening device in the opening of the second part 2, the state shown in Figure 7.

The first part 1 is secured to the second part 2 by means of the fixing device fixed thereto. The barbs 16 make it possible to hold the first part 1 on the second part 2.

If the screw 10 is further rotated in the position shown in Figure 7, the blocking element 3 moves linearly over the projection 15 and there is the position shown in Figure 8, wherein the arrow in the direction of the head portion 6, the linear movement schematically indicates. In a further progression of the movement, the blocking element 3 comes in a region in which the strut 9 has a slot or a recess 17. Furthermore, the walls, on each of which a projection 15 is formed, depending on a designed as a latch projection 23, which prevent further linear movement on the head portion 6 to. In this case, the position of the projections 23 may be adapted to the position of the recesses 17.

The recess 17 is formed in two spaced-apart struts 9, which are arranged diagonally relative to each other on the base surface of the guide cage 4. The recesses 17 having struts 9 have a guide wall 18 which is provided for guiding the linear movement.

In particular, Figure 2 it can be seen that the recesses 17 having struts 9 have a portion as a guide wall 18 which extends in the direction of the longitudinal axis L. The guide wall 18 is part of the strut 9. The blocking element 3 is guided along the guide wall 18 for carrying out the linear movement by abutment against the guide wall 18. The guide wall 18 has an end edge 19 which limits the recess 17. At the end edge 19, the extension of the guide wall 18 ends in the direction of the longitudinal axis L. If the blocking element 3 passes the closing edge 19 during its linear movement, the blocking element 3 can rotate about the longitudinal axis L and follows the state shown in FIG Rotation of the screw 10 of the movement sequence shown in Figures 9 to 1 1. The blocking element 3 carries out the rotation about the longitudinal axis L after the blocking element 3 has passed the closing edge 19 of the guide wall 18 during the (first) linear movement.

The blocking element 3 performs a substantially 90 ° rotation about the longitudinal axis L during rotation and comes into abutment against guide surfaces 20 of the guide cage 4, which are formed on the struts 9. The guide surfaces 20 are arranged transversely to the guide surfaces 14. The guide surfaces 20 are rotated substantially 90 ° about the longitudinal axis L to the guide surfaces 14.

As a result of the rotation of the blocking element 3, the contact surface 5 reaches the other side of the plane connecting the struts of the guide cage, so that the contact surface 5 can come into contact with the second part 2 (see FIG. This is illustrated in FIG. 12, after the blocking element 3 has completed a further linear movement after rotation, which was induced by means of the rotation of the screw 10.

The blocking element 3 is now guided between other struts 9 in the linear movement. While the blocking element 3 was guided during the first linear movement before the rotation between the clamp-like oppositely formed struts 9, the blocking element 3 is guided linearly after rotation between struts 9 of a clip.

Upon a further rotation of the screw 10 and a further linear movement of the blocking element 3, the second part 2 is moved further toward the first part 1, which is shown in FIG. A seal 21, which is arranged between the first part 1 and the second part 2, is compressed.

In the further linear movement between the states illustrated in FIGS. 12 and 13, the blocking element 3 overruns the projection 22 formed on the guide cage 4. The projection 22 protrudes into the space in which the blocking element 3 performs its linear movement. The projection 22 is formed on two struts 9.

It can be seen from FIG. 14 that the screw 10 can be rotated out of the blocking element 3 without the connection between the first part 1 and the second part 2 being released. However, the connection can be released again by the blocking element 3 is moved in a linear movement in the direction of the foot portion 7 of the guide cage on the projection 22 over.

The embodiment of FIGS. 15 and 16 differs from the embodiment shown in FIGS. 1 to 14 by barbs 100 which are provided instead of the projections 22. The barbs 100 are tapered to the foot portion 7 of the guide cage 4. The respective barb 100 can spring from a particularly far projecting end position (shown in FIGS. 15 and 16) in a less far protruding position when the blocking element 3 passes through him and into the in Fig. 15 and 16, projecting far projecting end position, when the blockade element has passed it, as shown in Fig. 15 and 16. In his far protruding end position of the barb 100 projects into the space in which the blocking element 3 performs its second linear movement. By employing a barb at this location, the blocking element 3 can be prevented from moving in the opposite direction to the second linear movement upon completion of the second linear movement.

Claims

"Claims"

An attachment device for connecting a first part (1) to a second part (2) having an opening, with

A blocking element (3) which has at least one abutment surface (5) for abutment with the second part (2), and

A guide cage (4),

o extending along a longitudinal axis (L) from a head region (6) to a foot region (7) and

o in the head region (6) has a contact portion (8) for abutment with the first part (1) and

o whose foot region (7) is adapted to be guided through the opening of the second part (2), and

o having at least two struts (9) extending in the direction of

Extend longitudinal axis (L),

wherein the blocking element (3) can be arranged in different positions in the guide cage (4) and thereby

• Is arranged in a first position in the guide cage (4), that the contact surface (5) of the blocking element (3) at least majority, especially preferably entirely on one side of the two struts (9) of the guide cage (4) connecting plane (E) is located and

• Is arranged in a second position in the guide cage (4) that the contact surface (5) of the blocking element (3) at least majority, especially preferably entirely on the other side of the two struts (9) of the guide cage (4) connecting Level (E) is located,

wherein the blocking element (3) is moved by a movement that causes rotation of the

Blockadeelements (3) about the longitudinal axis (L), can be transferred from the first position to the second position,

characterized,

in that the movement of the blocking element (3) from the first position to the second position is a movement composed of a plurality of partial movements, which as a partial movement comprises a rotation of the blocking element (3) about the longitudinal axis (L) and as another partial movement a linear movement the blocking element (3) along the longitudinal axis (L), wherein the blocking element (3) as part of the linear movement overcomes a projection (15, 22) which projects into the space in which the blocking element (3) performs its linear movement ,

2. Fastening device according to claim 1, characterized in that the blocking element (3) is guided in its linear movement of a guide surface (14) of one of the two struts (9).

3. Fastening device according to claim 1 or 2, characterized in that the guide cage (4) has a first strut (9), a second strut (9) and a third strut (9) and composed of a plurality of partial movements movement of the blocking element (3 ) has as a partial movement a first linear movement of the blocking element (3), in which the blocking element (3) between the first strut (9) and the second strut (9) is guided, and as a further partial movement, a second linear movement of the blocking element ( 3), wherein the blocking element (3) between the second strut (9) and the third strut (9) is guided.

4. Fastening device according to claim 3, characterized in that the composite of several partial movements movement of the blocking element (3) provides that the blocking element (3) after a first partial movement, which contains the first linear movement of the blocking element (3), in which the Blockade element between the first strut (9) and the second strut (9) is performed, as a second partial movement performs a rotation about the longitudinal axis (L), and then provides a third partial movement having the second linear movement of the blocking element (3), in which the blocking element (3) is guided between the second strut (9) and the third strut (9).

5. Fastening device according to claim 3 or 4, characterized in that the blocking element (3) as part of the first linear movement overcomes a projection (15, 22) which projects into the space in which the blocking element (3) its first linear movement and / or that the blocking element (3) as part of the second linear movement overcomes a projection (15, 22) which projects into the space in which the blocking element (3) performs its second linear movement.

6. Fastening device according to one of claims 1 to 5, characterized in that the projection (15, 22) on a strut (9) of the guide cage (4) is formed.

7. Fastening device according to one of claims 1 to 6, characterized in that the guide cage (4) has a guide wall (18) which extends in the direction of the longitudinal axis (L), and along which

Blockade element (3) for performing a linear movement by engagement with the guide wall (18) is guided, wherein the guide wall (18) has a terminal edge (19) at which the extension of the guide wall (18) in the direction of the longitudinal axis (L) ends , wherein the blocking element (3) can perform a rotation about the longitudinal axis (L), as soon as it passes through the Guide wall (18) guided linear movement has passed the end edge (19).

8. Fastening device according to one of claims 1 to 7, characterized in that the blocking element (3) has a thread and a along the longitudinal axis (L) extending screw (10) engages in the thread, wherein the head of the screw (10). projects beyond the head region (6) of the guide cage (4) out of the guide cage (4).

9. Fastening device for connecting a first part (1) with a second, having an opening part (2), in particular according to one of claims 1 to 8, with

A guide cage (4),

o having at least two struts (9) extending in the direction of

Extend longitudinal axis (L),

wherein the guide cage (4) has at least one protruding barb (16) which tapers towards the foot region (7) of the guide cage (4) and which can deflect from a particularly far projecting end position into a less far protruding position.

10. Fastening device for connecting a first part (1) with a second, having an opening part (2), in particular according to one of claims 1 to 9, with

A guide cage (4),

o having at least two struts (9) extending in the direction of

Extend longitudinal axis (L),

wherein the abutment portion (8) is at an angle to the longitudinal axis (L)

extending tab (1 1), wherein the tab (1 1) has a groove (12) for receiving a projection (13) provided on the first part (1).

1 1. Device having a first part (1) and a second, having an opening part (2), characterized by a fastening device according to one of claims 1 to 10, wherein the guide cage (4) passes through the opening of the second part (2) and the abutment portion (8) of the guide cage (4) rests against a surface of the first part (1) and the abutment surface (5) of the blocking element (3) abuts a surface of the second part (2) facing the surface of the first part (3). 1), on which the abutment portion (8) of the first part (1) rests, facing away.

12. Use of a fastening device according to one of claims 1 to 10 for fastening a first part (1) with a second part having an opening (2), wherein the guide cage (4) passes through the opening of the second part (2) and the abutment portion (8) of the guide cage (4) abuts a surface of the first part (1) and the abutment surface (5) of the blocking element ( 3) bears against a surface of the second part (2) facing away from the surface of the first part (1) against which the abutment section (8) of the first part (1) abuts.

A method of joining a first part (1) to a second part (2) having an opening using a fastening device, the fastening device

A guide cage (4),

o having at least two struts (9) extending in the direction of

Extend longitudinal axis (L),

, wherein the blocking element (3) in different positions in the

Guide cage (4) can be arranged and thereby

characterized,

in that the blocking element (3) is moved from the first position to the second position by a movement composed of a plurality of partial movements, wherein a partial movement is a rotation of the blocking element (3) about the longitudinal axis (L) and, as another partial movement, a linear one Movement of the blocking element (3) along the longitudinal axis (L) is performed, wherein the blocking element (3) as part of the linear movement overcomes a projection (15, 22) which projects into the space in which the blocking element (3) its linear Movement performs.

14. The method according to claim 13, characterized in that for carrying out the method, a fastening device according to one of claims 1 to 10 is used.