WO2014079782A1

WO2014079782A1 - Fixing device for connecting a device to two head-restraint rods of a vehicle seat which are spaced apart

Info

Publication number: WO2014079782A1
Application number: PCT/EP2013/073963
Authority: WO
Inventors: Peter Ackeret; Jürgen Siegfried SKOTT; Andreas Michael KELLER
Original assignee: Kinetix Ag
Priority date: 2012-11-23
Filing date: 2013-11-15
Publication date: 2014-05-30
Also published as: DE102013223386A1; DE102013223386A8

Abstract

The invention relates to a fixing device for connecting a device to two head-restraint rods (1a, 1b) of a vehicle seat which are spaced apart, said fixing device having two fixing elements (2, 3) on the sides of which facing the head-restraint rods (1a, 1b) supports (2a, 2b, 3a, 3b) are arranged, which are braced on one side of the head-restraint rods (1a, 1b), wherein securing elements (4, 5, 6, 7, 10, 13) are provided which surround the head-restraint rods (1a, 1b) on the other side and are thus releasably connected to the fixing elements (2, 3), such that these can be attached to the head-restraint rods (1a, 1b) or removed from same.

Description

Fastening device for connecting a device to two spaced headrest rods of a vehicle seat

The invention relates to a fastening device for connecting a device to two spaced headrest rods of a vehicle seat.

Such a fastening device has been described by the applicant in WO 2010/139452, which is referred to. The fastening device described comprises a receiving socket, which is fastened by means of fastening elements on the headrest rods of a vehicle seat and a plug-in element which is inserted into the receiving socket and held captive with a releasable locking, the plug element is part of various modules mounted so aus-changeable on the vehicle seat, dismantled and can be exchanged for each other.

The fasteners are movable relative to each other and are pressed apart with a spring, so that the fastening device can be clamped between the headrest rods.

At the directed against the headrest rods ends of the fasteners fork-shaped supports are arranged whose legs are supported on the headrest rods.

With a latching device, the relative movement of the fastening element can be blocked in such a way that a movement of the fastening elements in the direction of the headrest rods is permitted and a movement of the fastening element in the direction away from the headrest rods is blocked.

By means of an actuating element, the latching device can be released for moving the fastening elements away from the headrest rods.

The fastening device can thus be connected without affecting the height adjustment of the headrest stably on differently spaced headrest rods.

With widely extended headrest and high acceleration forces as they can occur in accidents, the fastening device between the headrest rods can be so far obliquely that one of the forked ends slip out of the headrest rod and the fastening device can detach from the vehicle seat.

The object of the invention is to provide a fastening device for connecting a device to two spaced headrest rods of a vehicle seat, which is easily and so fastened to the headrest rods without affecting the adjustability of the headrest, that the fastening device can not be detached from the headrest rods.

This object is achieved according to the invention by a fastening device for connecting a device to two spaced head restraint rods of a vehicle seat with the features of claim 1. Further developments of the invention are defined in the dependent claims.

The invention is therefore characterized by a fastening device for An-closing a device on two spaced headrest rods of a vehicle seat, with two fasteners are arranged at their directed against the headrest rods side supports, which are supported on one side of the headrest rods, wherein Secured elements are provided which enclose the headrest rods on the other side and are detachably connected to the fastening elements such that they can be applied to the headrest rods or removed therefrom.

In a preferred embodiment, the supports are fork-shaped at the ends of the fastening elements and are supported on one side of the headrest rods.

In a further preferred embodiment, the securing element engages around the other side of the headrest rod and is fastened detachably to the fastening elements at least on one side.

In a preferred embodiment, the supports on the fastening elements and the securing elements embrace the headrest rods approximately in half each and together form a closed approximately circular ring around the headrest rods.

In a preferred embodiment, the securing elements are made as strips or as molded parts made of spring steel or plastic and connected to one or both sides releasably connected to the fastening elements.

In a preferred embodiment, the securing elements are designed as removable U-shaped bracket or brackets, which are provided on the two stirrup legs with spring hooks and inserted into the front side or side of the fasteners arranged slots and can be detachably hooked.

Further, embodiments are preferred in which the securing elements on one side fixed or movable, for example as a pivoting arm with a hinge, and at the free end with a releasable closure with the fasteners are connected, since they can not be lost.

In a further preferred embodiment, the securing elements are designed as slide elements, which are connected via a linear guide with the fastening elements.

In a further preferred embodiment, the securing elements are designed so that they adapt to different diameters of the headrest rods. For example, this could be done via a spring balance and / or different closure positions on the fastening elements.

It is also preferred if the securing element, for example, are secured in guide channels on the fastening elements against vertical displacements or rotation.

In a further preferred embodiment, the securing elements are formed as bands of a flexible plastic material, one end of which is fixedly connected to the fastening element and the other end can be releasably connected to the fastening element.

Preferably, the releasable closure is designed so that the band can be fixed in different lengths and so can be adapted to headrest rods with different diameters.

Also preferred are embodiments with flexible bands which can be connected at both ends via releasable fasteners with the fasteners.

Further advantages and embodiments of the invention will become apparent from the description and the accompanying drawings.

It is understood that the features mentioned above and those yet to be explained can be used not only in the respective combinations given, but also in other combinations or in isolation, without departing from the scope of the present invention.

The invention will be explained in more detail below with reference to preferred embodiments with reference to the accompanying drawings.

Fig. 1 shows a perspective view of a first embodiment of the fastening device with two clamped between the headrest rods fastening elements which are biased by a spring against the two headrest rods and with two securing elements in the form of a clamp, mounted and de-mounted on each of the fasteners.

Fig. 2 shows a longitudinal sectional view of the fork-shaped support of one of the fasteners applied to one of the headrest rods with a hinged to the side walls of the fastener bracket according to embodiments in the illustration of Figure 1.

FIG. 3 shows the clamp according to illustrations in FIG. 1 and FIG. 2 in rest position and dashed in a prestressed position.

4 shows a longitudinal sectional view of a second embodiment of the fastening device with a securing element in the form of a swivel arm articulated on a fastening element in the locked closed position.

Fig. 5 shows a perspective view of a third embodiment of the fastening device with a securing element in the form of a slider element which is connected via a linear guide with one of the fastening elements, in the de-mounted position from the front.

Fig. 6 shows a perspective view of the embodiment as shown in Fig. 5 from the rear.

7 shows a longitudinal sectional view of the supports of the fastening element applied to the headrest rod with the slider element mounted on the fastening element according to illustrations in FIGS. 5 and 6.

Fig. 8 shows a perspective view of a fourth embodiment of the fastening device with a securing element in the form of a mounted on a fastener tape, in the closed position.

FIG. 9 is a longitudinal sectional view through the center of the band of the embodiment shown in FIG. 8. FIG.

10 shows a longitudinal sectional view through the lower ratchet teeth of the band of the embodiment as shown in FIG. 9.

Fig. 11 shows a perspective view of a variant of the embodiment of the fastening device according to illustrations in Fig. 8 to 10 without head restraint rod, in the open position.

Fig. 12 shows a perspective view of the fastening device as shown in Fig. 11 with head restraint rod, in the closed position.

Fig. 13 shows a perspective view of a fifth embodiment of the fastening device with a securing element in the form of a clip with spring hook which can be inserted into two at the end faces of the fastening elements vertically arranged slot openings, in the disassembled position.

Fig. 14 shows a perspective view of the embodiment shown in Fig. 13, with mounted bracket.

FIG. 15 is a longitudinal sectional view of the illustration of FIG. 13. FIG.

FIG. 16 is a longitudinal sectional view of the illustration of FIG. 14. FIG.

17 shows a longitudinal sectional view of a variant of the embodiment shown in the illustrations of FIGS. 13 to 16 with a plurality of latching positions for the bracket.

Fig. 18 shows a longitudinal sectional view as shown in Fig. 16 with an inserted into the fastener disassembly tool for releasing and removing the bracket.

Fig. 19 shows a perspective view as shown in Fig. 14 with the disassembly tool.

FIG. 20 shows a perspective view with the dismantling tool inserted into the fastening element, as shown in FIG. 18.

Fig. 21 shows a perspective view with the removed with the disassembly tool from the fastener bracket.

Fig. 22 shows a perspective view of the bracket.

Fig. 1 to 3 show a first embodiment of the fastening device. The two guided in the

fasteners

2, 3 are pressed with a spring against the headrest rods 1a, 1b. Fork-shaped supports 2a, 2b, 3a, 3b, which are supported on the inner sides of the headrest rods 1a, 1b, are arranged on the ends of the

fastening elements

2, 3 directed against the headrest rods 1a, 1b.

In approximately the middle between the headrest rods 1a, 1b, the receiving socket 8 is arranged on the

fastening elements

2, 3 into which the plug-in element 9 of a device to be connected to the fastening device can be inserted and releasably locked (FIG. 1).

The securing elements 4 are formed as U-shaped brackets 5 and frontally on the headrest rods 1a, 1b attachable to the

fasteners

2, 3. They are pushed in until the bulge 5d on the outside of the headrest rods 1a, 1b is present. Subsequently, the two clip legs 5a, 5b are connected via the segments 5e ', 5e' 'resiliently connected to the bulge 5d so far pressed in the insertion direction until the arranged on the staple legs 5a, 5b hook 5a', 5b 'in the Hang the

side walls

2c, 2d of the fastening elements 2.3 arranged recesses 2e ', 2e' '.

On the

side walls

2c, 2d of the

fastening elements

2, 3 groove-shaped recesses 2f are provided, in which the hooks 5a ', 5a' 'during insertion of the clip 5 to the recesses 2e', 2e 'out and in which the clip legs 5a, 5b are recorded so that the brackets 5 are secured against vertical tilting or slipping.

The hooks 5a ', 5b' are bent over 90 ° and the

side walls

2c, 2d in the area where the hooks 5a ', 5b' hook with an approximately parallel to the chamfer of the hooks 5a ', 5b' extending bevel 2c ', 2d' provided so that the entanglement forms a Hitergriff.

Fig. 4 shows a second embodiment of the securing element 4 in the form of a pivot arm 6 which is rotatably connected to the side wall 2d via the joint 6a with the fastening element 2 and is fastened with the closure device 6b on the side wall 2c. The axis of rotation of the joint 6a is parallel to the longitudinal axis of the headrest rods 1a, 1b.

Fig. 5 to Fig. 7 show a third embodiment of the securing element 4 in the form of a slider element 7, which is provided on the directed against the

fastening element

2, 3 inside with two vertically extending grooves 7a '.

On the against the headrest rods 1a, 1b directed end faces of the

fastening elements

2, 3, two vertically extending rails 7a are arranged in which the grooves 7a 'of the slide element 7 are inserted from above. The grooves 7a 'together with the rails 7a form a dovetail-like connection, so that the slide elements 7 can be loaded transversely to the direction of insertion.

FIGS. 8 to 12 show a fourth embodiment of the securing element 4 in the form of a band 10 attached to the

fastening elements

2, 3.

On the front wall of the

fastening elements

2, 3, a vertical slot 2b 'is mounted in which the band 10 is inserted before the assembly of the fastening elements 2, 3 (FIG. 9). At the end of the band 10, a retaining element 10a is arranged with which the band 10 is held on the

fastening element

2, 3.

At the free end of the band 10, a connector tongue 11 is arranged with upper and lower sawtooth-shaped ratchet teeth 11a, 11b and a pressure key 11c arranged between them.

On the rear side wall 2d, a closure box 12 is arranged with a receiving space 12a and a frontally arranged insertion opening 12b through which the connector tongue 11 is inserted into the receiving space 12a.

On the inside of the outer wall 12c of the lock box 12 are sawtooth-shaped upper and lower opposing

teeth

12d, 12e arranged in which the upper and lower locking teeth 11a, 11b of the connector tongue 11 engage.

Between the upper and

lower mating teeth

12d, 12e, a key slot 12f is provided in the outer wall 12c, so that the key 11c on the male tab 11 is accessible.

In order to ensure a secure engagement of the locking teeth 11a, 11b in the

mating teeth

12d, 12e, a leaf-shaped pressure spring 12g is provided on the directed against the side wall 2d side of the receiving space 12a with a directed against the insertion opening 12b inlet slope.

Depending on the diameter of the headrest rods 1a, 1b, the band 10 can be inserted at different depths into the closure box 12 and locks automatically in the respective position.

By pressing the push button 11c, the upper and lower ratchet teeth 11a, 11b disposed against the tongue 11 are pressed against the force of the pressure spring 12g from the upper and lower opposing

teeth

12d, 12e disposed on the outer wall 12c of the lock box 12 until the teeth are disengaged and the connector tongue 11 can be pulled out of the closure box 12.

On the

side walls

2d, 3d of the

fasteners

2, 3 guide channels 2g are provided (Fig. 11) in which the belt 10 is guided and secured against vertical slipping or tilting.

Fig. 13 to Fig. 22 show a fifth embodiment of the fastening device with securing elements in the form of a U-shaped bracket 13 with two stirrup legs 13a ', 13a' 'in vertically aligned at the end faces of the

fasteners

2, 3 side of the headrest rods 1a, 1b arranged insertion slots 3h ', 3h' 'in the

fasteners

2, 3 can be inserted. The insertion slots 3h ', 3h' 'are provided laterally next to the support 2a, 2b, 3a, 3b.

On the stirrup arms 13a ', 13a' 'are spring hooks 13b', 13b '' arranged in the latching hook 3k ', 3k' 'in the interior of the

fasteners

2, 3 engage. The spring hooks 13b ', 13b' 'are front in the insertion direction with the stirrup legs 13a', 13a '' and the cut-out tongues bent obliquely outwards.

When inserting the bar arms 13a ', 13a' 'in the insertion slots 3h', 3h '' who the spring hooks 13b ', 13b' 'pushed inwards and feathers after passing the insertion slots 3h', 3h '' back out into the Latch hook 3k ', 3k' '.

17 shows a variant with two latching hooks 3k ', 3k' 'arranged one behind the other so that the securing element 13 engages in different insertion depths and can therefore be used for headrest rods 1a, 1b with different diameters.

For releasing and removing the securing elements 13, a dismantling tool 14 is provided, with which the locking devices can be released and the securing elements 13 can be pulled out of the fastening elements 1, 2 (FIGS. 18 to 21).

On the opposite outer sides of the insertion slots 3h ', 3h' 'tool openings 3i', 3i '' provided in the two arms 14a ', 14' 'of the disassembly tool 14 can be inserted into the

fasteners

2, 3.

The two arms 14a ', 14a "of the dismantling tool 14 can be pushed into the

fastening elements

2, 3 far enough that the inlet bevels 14b', 14b" arranged at the front end of the arms 14a ', 14a "engage the guide surfaces 13c ', 13c' 'of the spring hook 13b', 13b '' ascend and the spring hooks 13b ', 13b' 'from the latching hooks 3k', 3k '' press.

With the pull hooks 14c ', 14c' 'arranged behind the inlet bevels 14b', 14b '' on the arms 14a ', 14a ", the securing element 13 can be pulled out of the

fastening element

2, 3 at the holding edges 13d', 13d" (FIG. Fig. 21).

Claims

Fastening device for connecting a device to two spaced headrest rods (1a, 1b) of a vehicle seat, comprising two fastening elements (2, 3), wherein the fastening elements (2, 3) each have a support (2a, 2b, 3a, 3b) for engagement with a Have side of the respective headrest rod (1a, 1b), characterized in that securing elements (4, 5, 6, 7, 10, 13) are provided which surround the headrest rods (1a, 1b) on the side facing away from the respective support side and releasably are connected to the fastening elements (2, 3) such that the fastening elements (2, 3) can be applied to or removed from the headrest rods (1a, 1b).
Fastening device according to claim 1, wherein the securing elements (4, 5, 6, 7, 10, 13) as U-shaped bracket (13) are formed with two stirrup legs (13a ', 13a' ') in vertically aligned at the end faces the insertion elements (2, 3) arranged insertion slots (3h ', 3h' ') can be inserted.
Fastening device according to claim 2, wherein on the stirrup legs (13a ', 13a' ') spring hooks (13b', 13b '') are arranged in the latching hooks (3k ', 3k' ') in the interior of the fastening elements (2, 3) engage.
Fastening device according to claim 3, wherein a plurality of latching hooks (3k ', 3k' ') are arranged one behind the other, so that the bracket (13) can be latched in different insertion depths.
Fastening device according to one of claims 2 to 4, wherein a disassembly tool (14) is provided with two arms (14a ', 14a' ') which far as in addition to the insertion slots (3h', 3h '') arranged tool openings (3i ', 3i' ') are inserted, that the spring hooks (13b', 13b '') from the latching hook (3k ', 3k' ') can be solved.
Fastening device according to claim 5, wherein on the dismantling tool (14) means (14b ', 14b' ') are arranged, with which the bracket (13) after releasing the spring hooks (13b', 13b '') from the fastening elements (2, 3 ) are pulled out.
Fastening device according to claim 1, wherein the securing elements (4, 5, 6, 7, 10, 13) as U-shaped brackets (5) are formed and wherein the brackets (5) at the free ends of the two clip legs (5a, 5b) with mutually facing hooks (5a ', 5b') are provided, which in slot-shaped recesses (2e ', 2e' ', 3e') on the side walls (2c, 2d, 3c, 3d) of the fastening elements (2, 3) engage.
Fastening device according to claim 7, wherein the hook (5a ', 5b') bent at an angle of about 90 ° and the side walls (2c, 2d, 3c, 3d) of the fastening elements (2, 3) in the area where the hook (5a ' , 5b ') in the recesses (2e', 2e '', 3e '), are provided with a chamfer (2c', 2d ') running approximately parallel to the chamfer of the hooks (5a', 5b ').
Fastening device according to one of claims 7 or 8, wherein on the side walls (2c, 2d, 3c, 3d) of the fastening elements (2, 3) groove-shaped recesses (2f, 2g) are provided which receive the clip legs (5a, 5b) and the Secure clips (5) against vertical tilting or slipping.
Fastening device according to claim 1, wherein the securing elements (4, 5, 6, 7, 10, 13) as pivot arms (6) are formed, which are connected via a rotary joint (6a) movable with the fastening elements (2, 3) and their free End with a closure device (6b) releasably attached to the fasteners (2, 3) can be made.
Fastening device according to one of claims 1 to 10, wherein the securing elements (4, 5, 6, 7, 10, 13) are made as bands or as molded parts made of spring steel or plastic.
Fastening device according to claim 1, wherein the securing elements (4, 5, 6, 7, 10, 13) as slide elements (7) are formed, which via a linear guide (7a, 7a ') connected to the fastening elements (2, 3) are.
Fastening device according to claim 1, wherein the securing elements (4, 5, 6, 7, 10, 13) as a band (10) made of a flexible material, one end (10a) on one side of the head restraint rod (1a, 1b) fixed with a fastening element (2, 3) is connected and the other end with a connector tongue (11) is provided, in a on the other side of the head restraint rod (1a, 1b) on the fastener (2, 3) attached closure box (12) detachable can be locked.
Fastening device according to claim 13, wherein the closure box (12) on a side wall (2c, 2d, 3c, 3d) of the fastening elements (2, 3) is arranged.
Fastening device according to one of claims 13 or 14, wherein the plug tongue (11) with sawtooth-shaped ratchet teeth (11a, 11b) is provided, which engage in corresponding in the closure box (12) arranged sawtooth-shaped counter teeth (12d, 12e).
Fastening device according to claim 15, wherein a pressure spring (12g) is provided, which hold the latching teeth (11a, 11b) and the counter-teeth (12d, 12e) in engagement.
Fastening device according to claim 16, wherein a preferably on the connector tongue (11) arranged push-button (11c) is provided, with which the locking teeth (11a, 11b) and the counter-teeth (12d, 12e) can be disengaged.
Fastening device according to one of claims 13 to 17, wherein the band (10) and the plug tongue (11) with the latching teeth (11a, 11b) and the push button (11c) are made in one piece from a flexible plastic material.
Fastening device according to one of claims 1 to 18, wherein the securing elements (4, 5, 6, 7, 10, 13) are resilient, so that they can be adapted to different diameters of the headrest rods (1a, 1b).
Fastening device according to one of claims 1 to 19, wherein the supports (2a, 2b, 3a, 3b) are fork-shaped on the fastening elements and the securing elements (4, 5, 6, 7, 10, 13), the headrest rods (1a, 1b). each about half embrace