Locking unit for a vehicle seat and vehicle seat

Abstract

Locking unit (10) for a vehicle seat (1), comprising a pawl (80) pivotably mounted about a pivot axis between an open position and a closed position, with a retaining contour (27) for holding a locking bolt (12) in the closed position, characterized in that at least one claw (90, 91, 92) is pivotably mounted axially offset from the pawl (80) about the same pivot axis, wherein the claw (90, 91, 92) has a closing contour (25), wherein the pawl (80) is pivotable from the open position to the closed position by the locking bolt (12) acting on the closing contour (25), wherein the claw (90, 91, 92) has a support contour (22) which, in the closed position of the pawl (80), The locking pawl (30) secures the locking pawl (80) and interacts with a clamping element (40) to eliminate play in the locking pawl (80),wherein a stop element (60) is arranged such that, when the locking unit (10) is locked, the locking bolt (12) bears against the stop element (60) at a first contact point and against the retaining contour (27) at a second contact point, wherein the first contact point and the second contact point lie at least approximately in a plane which is perpendicular to the axial direction.

Description

[0001] The invention relates to a locking unit for a vehicle seat having the features of the preamble of claim 1. The invention also relates to a vehicle seat having the features of claim 10. State of the art

[0002] A generic locking unit for a vehicle seat is known from WO 2010 / 054860 A2. Such a locking unit comprises a rotary latch pivotally mounted about one pivot axis for locking with a locking bolt. A detent pawl pivotally mounted about another pivot axis secures the rotary latch in the locked state of the locking unit. A pivotally mounted clamping element, designated as a tolerance compensation pawl, exerts a closing torque on the rotary latch and thus eliminates any play between the rotary latch and the locking bolt.

[0003] A locking unit of this type for a vehicle seat is also known from DE 20 2011 100 040 U1. The locking unit has two bearing pins which serve to pivot the rotary latch, the locking pawl, and the clamping element. The two bearing pins also serve to fasten the locking unit to the structural part of the vehicle seat and are approximately hollow cylindrical. Two screws are also provided for fastening the locking unit to the structural part of the vehicle seat; each screw passes through one of the two bearing pins and is screwed into the structural part or an additional nut.

[0004] In the aforementioned known locking units, the rotary latch has four contours, each fulfilling a different function. A holding contour serves to secure the locking bolt in the locked position. A support contour interacts with the clamping element to eliminate play and with the detent to secure the rotary latch in the locked position. An open-position contour interacts with the detent to secure the detent in the unlocked position. A closing contour ejects the locking bolt when the locking unit is unlocked. When the locking unit is locked, the locking bolt comes into contact with the closing contour, thereby pivoting the rotary latch into its closed position and locking the unit into the locked state.

[0005] When the locking unit is locked, the rotary latch is in the closed position and the retaining contour holds the locking bolt securely. When the locking unit is unlocked, the rotary latch is in the open position.

[0006] Such locking units are used, for example, to lock a backrest of a vehicle seat to a seat part and / or to a body or structure of a vehicle, or to lock the vehicle seat to the body or structure of the vehicle.

[0007] Engine hoods, tailgates or doors of vehicles can also be locked to the body or structure of the vehicle using such locking units.

[0008] For example, such locking units, which are also referred to as locks, are known from DE 10 2006 003 022 A1, DE 10 2009 021 297 A1, DE 103 27 448 A1 and DE 10 2009 037 037 A1. Task

[0009] The invention is based on the objective of improving a locking unit of the type mentioned above, in particular by reducing the required installation space. Solution

[0010] This problem is solved according to the invention by a locking unit for a vehicle seat having the features mentioned in claim 1. Advantageous embodiments, which can be used individually or in combination with one another, are the subject of the dependent claims.

[0011] A generic locking unit for a vehicle seat comprises a pawl pivotally mounted about a pivot axis between an open position and a closed position, with a retaining contour for holding a locking bolt in the closed position.

[0012] When the locking unit is locked, the locking pawl is in the closed position and the retaining contour holds the locking bolt securely. When the locking unit is unlocked, the rotary latch is in the open position.

[0013] According to the invention, at least one claw is pivotably mounted axially offset to the pawl about the same pivot axis, wherein the claw has a closing contour, and wherein the pawl can be pivoted from the open position to the closed position by the locking bolt acting on the closing contour.

[0014] By providing a locking pawl and at least one claw, which are arranged axially offset from each other, instead of a rotary latch, the known integration of holding contour, closing contour, support contour and open-hold contour on a rotary latch is advantageously resolved.

[0015] The integration resolution allows for a smaller installation space because the described multi-part structure enables optimal spatial nesting of the components. This multi-part structure allows for the division of areas that bear high loads and less stressed areas onto separate components. As a result, more areas can be made from lightweight materials, thus reducing the overall weight.

[0016] A pawl with a retaining contour is thus connected to at least one claw in such a way that, by applying appropriate pressure to a closing contour located on the claw, the pawl can be moved from an open position to a closed position.

[0017] This makes it possible to design the shape of a pawl with a holding contour in such a way that its contact point to a locking bolt lies in approximately the same plane perpendicular to its pivot axis or instantaneous pole, as a contact point of the locking bolt to a stop element.

[0018] Preferably, the locking unit therefore comprises a stop element which is arranged such that, when the locking unit is locked, the locking bolt rests on the stop element at a first contact point and on the retaining contour at a second contact point, wherein the first contact point and the second contact point lie at least approximately in a plane which is perpendicular to the axial direction.

[0019] This means that the locking pawl with retaining contour does not have to move, or moves less, around its pivot axis to compensate for angular deviations of the locking bolt relative to its pivot axis.

[0020] A clamping element driving the claw can then be designed with a smaller average contact angle to the claw over the contact area, while maintaining the same swivel range.

[0021] With the same drive torque of the clamping element, the clamping element therefore only begins to move at higher forces acting on the pawl in an opening direction.

[0022] The simultaneous contact of the locking bolt with the stop element and with the retaining contour of the pawl is thus maintained even under higher dynamic excitations of the locking bolt, and noises due to changing contact conditions between the pawl, the locking bolt and the stop element are avoided.

[0023] The arrangement of the locking contour on a claw offset from the pawl makes it possible to shape the pawl in such a way that the pawl can move from the closed to the open position without colliding with the stop element arranged in the same functional plane.

[0024] Preferably, the stop element is arranged axially offset from the claw. This allows the claw to pivot past the stop element during locking and unlocking of the locking unit.

[0025] According to an advantageous embodiment of the invention, the claw has a support contour which, in the closed position of the pawl, interacts with a locking pawl to secure the pawl and / or with a clamping element to eliminate play in the pawl.

[0026] The pawl is thus connected to at least one claw, which is arranged axially offset from the contact area of ​​the locking bolt with the pawl. The support contour, which ensures load absorption at the contact area of ​​the pawl with the locking bolt even under forces that could cause movement of the clamping element, is located on at least one claw arranged in this way and connected to the pawl.

[0027] The clamping element is preferably pivotably mounted about a second pivot axis running parallel to the pivot axis of the pawl. However, it is also conceivable, for example, that the clamping element is designed as a translationally guided wedge.

[0028] According to a further advantageous embodiment of the invention, the claw has an open-hold contour which interacts with a locking pawl to secure the locking pawl in the open position of the locking pawl.

[0029] An open-hold contour arranged on another component or on the claw thus holds the claw and an adjacent latch in the open position.

[0030] Alternatively, the open-hold contour can also be located on a stop element movably connected to the housing in the functional plane of the first latch.

[0031] The pawl and the claw are preferably connected to each other in a rotationally fixed manner in both directions of rotation. The connection of the pawl and claw components, which are arranged in offset functional planes, can be positive-locking, friction-locking, or material-locking. The connection can also be partially effective in only one direction of movement.

[0032] According to an advantageous embodiment of the invention, the locking device comprises two parallel coupling plates, each having two retaining bores into which a bearing bolt is inserted, and a retaining opening into which a retaining bolt with a through-hole is inserted, wherein the retaining opening and / or the through-hole are designed as elongated holes. This allows the locking unit to be adapted to different seat dimensions of the vehicle.

[0033] The problem is also solved by a vehicle seat with the features mentioned in claim 10, which includes at least one locking unit according to one of the preceding claims. Figures and embodiments of the invention

[0034] The invention is explained in more detail below with reference to advantageous embodiments illustrated in the drawings. However, the invention is not limited to these embodiments. The drawings show:

[0035] Fig. 1: A schematic side view of a vehicle seat,

[0036] Fig. 2: an exploded view of a generic locking unit according to the prior art,

[0037] Fig. 3: a schematic side view of another locking unit of the same type according to the prior art in the unlocked state,

[0038] Fig. 4: a schematic side view of the locking unit according to Fig. 3 in the locked position,

[0039] Fig. 5: a schematic side view of a first embodiment of a locking unit according to the invention in the unlocked state,

[0040] Fig. 6: a schematic side view of a second embodiment of a locking unit according to the invention in the unlocked state,

[0041] Fig. 7: a schematic side view of a third embodiment of a locking unit according to the invention in the unlocked state,

[0042] Fig. 8: a schematic side view of the third embodiment according to Fig. 7 in the locked state,

[0043] Fig. 9: a perspective view of a fourth embodiment of a locking unit according to the invention in the locked state,

[0044] Fig. 10: a further perspective view of the fourth embodiment according to Fig. 9 in the locked position,

[0045] Fig. 11: a side view of the fourth embodiment according to Fig. 9 in the locked position,

[0046] Fig. 12: a side view of the fourth embodiment according to Fig. 9 in the locked state without front coupling plate and without casing,

[0047] Fig. 13: a cut along line AA in Fig. 11,

[0048] Fig. 14: an exploded view of the fourth embodiment according to Fig. 9,

[0049] Fig. 15: a perspective view of a fifth embodiment of a locking unit according to the invention in the locked state,

[0050] Fig. 16: a perspective view of a sixth embodiment of a locking unit according to the invention in the locked state,

[0051] Fig. 17: a side view of the sixth embodiment according to Fig. 16 in the locked state,

[0052] A locking unit is present in a motor vehicle. 10for attaching a backrest 3 a vehicle seat 1 , in particular a rear seat, provided on a vehicle structure. The backrest 3 It can be swivelled from a working position to a non-working position on a seat part. 5 appropriate.

[0053] The locking unit 10 However, it can also be used in other places, for example to attach the seat part. 5 of the vehicle seat 1 on the vehicle's floor structure or in a door lock.

[0054] The arrangement of the vehicle seat 1 The directions used below are defined within the vehicle and its usual direction of travel. A direction perpendicular to the ground is referred to as the vertical direction, and a direction perpendicular to both the vertical direction and the direction of travel is referred to as the transverse direction.

[0055] A locking unit 10 According to the state of the art, a lock housing has a side plate 16 and a cover plate 18 includes the base surfaces of the side plate. 16 and the cover plate 18 They are flat and arranged in a plane defined by the direction of travel and the vertical direction, i.e., perpendicular to the transverse direction. The side plate 16 includes two circular first bearing bores 13 The cover plate 18 includes two circular secondary bearing bores 14 .

[0056] In the side panel 16 and in the cover plate 18 A receiving opening is formed, which points towards a locking bolt. 12 opens to receive it for locking. The locking unit is... 10 located on the backrest 3and the locking bolt 12 attached to the vehicle structure. It is also conceivable that the locking unit 10 on the vehicle structure and the locking bolt 12 on the backrest 3 is attached. The section of the locking bolt to be received by the receiving opening. 12 In this case, it runs horizontally in the transverse direction.

[0057] A twist trap 20 is on a first bearing bolt 51 pivotally mounted, which is attached to the side plate 16 and on the cover plate 18 is attached. The rotary latch 20 This is indicated by a rotary trap hole 24 on, which is from the first bearing bolt 51 is penetrated. The rotary trap 20 further indicates its interaction with the locking bolt 12 a hook mouth 21 up. By means of a first spring 71 is the rotation trap 20 Pre-tensioned in the opening direction.

[0058] The twist trap 20 has a support contour 22 on, which the hook mouth 21 Partially laterally limited. The support contour 22 It is approximately flat, but can also be curved in a circular arc or be concave, for example. In the locked state of the locking unit 10 The support contour 22 approximately in the direction of a second bearing bolt 52 , which runs parallel to the first bearing bolt 51 proceeds.

[0059] On the rotary trap hole 24 far side of the hook mouth 21 , the support contour 22 On the opposite side is the hook mouth 21 of a nose 28 the rotary trap 20 The nose is bordered laterally. 28 has a holding contour 27 on, which in the locked state of the locking unit 10 on the locking bolt 12is pending.

[0060] The first bearing bolt 51 is in a first bearing bore 13 the side panel 16 and into a second bearing bore 14 the cover plate 18 inserted and stands from the base surfaces of the side plate 16 and the cover plate 18 vertically. The first bearing bolt 51 It therefore runs in a transverse direction. The first bearing bolt 51 has a through-opening 55 with an approximately constant inner diameter.

[0061] The second bearing bolt as well 52 is in a first bearing bore each 13 the side panel 16 and into a second bearing bore each 14 the cover plate 18 inserted and stands from the base surfaces of the side plate 16 and the cover plate 18 vertically. The second bearing bolt 52The second bearing bolt therefore also runs in a transverse direction. 52 indicates, as does the first bearing bolt 51 , a passageway 55 with an approximately constant inner diameter.

[0062] The passageways 55 the bearing bolt 51 , 52 They serve to accommodate a fastening element, for example a screw, by means of which the locking unit 10 during mounting on the backrest 3 or on another structural part of the vehicle seat 1 or is attached to the vehicle. For this purpose, the screws are screwed into mounting holes in the structural component.

[0063] On the second bearing bolt 52 is a swiveling clamping element 40 stored. The clamping element has this feature. 40 a circular clamping element hole 44 on, which of the second bearing bolt 52is penetrated. By means of a third spring 73 is the clamping element 40 to the rotary trap 20 pre-tensioned.

[0064] When the locking unit is locked 10 , when the hook mouth 21 the rotary trap 20 the locking bolt 12 absorbs, exercises the clamping element 40 due to the preload provided by the third spring 73 as a safety element, a closing moment on the rotary latch 20 The clamping element also features... 40 one eccentric to the second bearing bolt 52 curved clamping surface 41 on, which are in non-self-locking contact with the support contour 22 the rotary trap 20 The clamping surface is located. 41 In this case, it is curved in a circular arc and has a convex shape.

[0065] A latch 30 is on the second bearing bolt 52axially next to the clamping element 40 arranged and also pivotable on the second bearing bolt 52 supported, i.e. with the clamping element 40 aligned. The latch indicates this. 30 a circular latch hole 34 on, which of the second bearing bolt 52 is penetrated. By means of a second spring 72 is the latch 30 to the rotary trap 20 pre-tensioned.

[0066] The latch 30 has a rest area 31 on, which are located in the vicinity of the span surface 41 of the clamping element 40 is located. In the locked state of the locking unit. 10 is the rest area 31 spaced apart from the support contour 22 the rotary trap 20 positioned. The resting area 31 In this case, it is curved in a circular arc and convex, but it can also be flat.

[0067] The latch 30 The side panel is present 16 arranged adjacently and the clamping element 40 The cover plate is present 18 Arranged adjacently. The latching mechanism. 30 and the clamping element 40 are coupled to a free travel for driving, for example by means of a slotted pin guide or by means of an axially projecting driver.

[0068] The direction in which the bearing bolts 51 , 52 The direction of travel is referred to below as the axial direction. In the present case, given the described installation situation of the locking unit, this applies. 10 on the backrest 3 of the vehicle seat 1 , the axial direction runs parallel to the transverse direction.

[0069] When the locking unit is locked 10 The locking bolt is located 12 in the side panel 16 and the cover plate18 formed receiving opening and in the hook mouth 21 the closed rotary trap 20 The holding contour 27 the nose 28 It's due to the locking bolt. 12 on. The clamping element 40 secures through the interaction of the clamping surface 41 with the support contour 22 the twist trap 20 The rest area 31 the latch 30 is slightly different from the support contour 22 the rotary trap 20 spaced apart.

[0070] To open the locking unit 10 The latch will 30 from the rotary trap 20 swung away, thereby changing the resting surface 31 the latch 30 further from the support contour 22 the rotary trap 20 removed. The latch 30 takes the clamping element 40 due to the coupling, so that the rotary trap 20 is no longer secure.

[0071] Due to the preload caused by the first spring 71 opens the rotary trap 20 , therefore pivots in the opening direction. Alternatively or in addition to the preload provided by the first spring 71 can the rotary trap 20 to open also from the latch. 30 or from the clamping element 40 be taken along.

[0072] Due to the pivoting movement of the rotary trap 20 the hook mouth retracts 21 from the side panel 16 and the cover plate 18 returned to the formed receiving opening and released the locking bolt. 12 free. The locking bolt 12 glides along a side of the rotary trap 20 intended closing contour 25 and moves away from the locking unit in the opposite direction to the pivoting direction 10 .

[0073] Has the locking bolt 12 the hook mouth 21Upon exiting, the locking unit is located 10 in the unlocked state. One on the rotary latch. 20 intended open contour 26 This blocks the locking pawl. 30 in their position.

[0074] In this unlocked state, the locking unit... 10 the locking bolt 12 back into the side panel 16 and the cover plate 18 formed receiving opening and in alignment with the closing contour 25 at the edge of the hooked mouth 21 , so the locking bolt presses 12 the twist trap 20 into its closed position. The clamping element 40 moves due to its preload from the third spring 73 along the support contour 22 . From the clamping element 40 taken along or due to the preload from the second spring 72 pivots the locking pawl 30, which are now no longer within the open contour 26 is blocked, onto the rotary trap 20 to, whereby the resting area 31 the support contour 22 the rotary trap 20 approaches. The locking unit is located thereafter. 10 back in the locked position.

[0075] The twist trap 20 the locking unit 10 According to the state of the art, a support contour therefore has 22 , a closing contour 25 , an open contour 26 and a holding contour 27 on.

[0076] In Fig. 5 is a first embodiment of a locking unit according to the invention. 10 The unit is shown schematically in the unlocked state. The following discussion focuses primarily on the differences between the first embodiment and the locking unit known from the prior art.

[0077] Instead of a rotary latch, the locking unit features 10 according to the first embodiment, a locking pawl 80 and a claw 90 which are offset in the axial direction and parallel to the first bearing bolt 51 are pivotally mounted. The locking pawl 80 and the claw 90 are connected to each other in a rotationally fixed manner. The claw 90 The latch is located there. 30 and the clamping element 40 opposite.

[0078] The locking latch 80 and the claw 90 They are therefore arranged in separate functional planes. A functional plane extends perpendicular to the axial direction and, unlike a mathematical plane, has an axial extent. The latching pawl 30 and the clamping element 40 are located in the functional plane of the claw 90 .

[0079] The locking latch 80 has a nose28 with a holding contour 27 open. In the locked state of the locking unit 10 The holding contour is located 27 on the locking bolt 12 to.

[0080] The claw 90 has a support contour 22 , a closing contour 25 and an open contour 26 open. In the locked state of the locking unit 10 The support contour is located 22 on the clamping surface 41 of the clamping element 40 and the rest area 31 the latch 30 is slightly different from the support contour 22 the claw 90 spaced apart.

[0081] In the unlocked state of the locking unit 10 The open-end contour lies 26 the claw 90 at the latch 30 on. During the locking and unlocking of the locking unit 10 The closing contour is located25 the claw 90 in contact with the locking bolt 12 .

[0082] Present on the cover plate 18 is a stop element 60 attached to which the locking bolt 12 in the locked state of the locking unit 10 is present. In the locked state of the locking unit. 10 is the locking bolt 12 so between the holding contour 27 the locking latch 80 and the stop element 60 clamped down.

[0083] The stop element 60 is located at the functional level of the locking pawl. 80 arranged. In the locked state of the locking unit 10 where are the contact points of the locking bolt located? 12 with the holding contour 27 the locking latch 80 as well as with the stop element 60approximately in a plane that runs perpendicular to the axial direction.

[0084] During the locking and unlocking of the locking unit 10 swings the claw 90 at the stop element 60 over.

[0085] In Fig. Figure 6 is a second embodiment of a locking unit according to the invention. 10 The unit is shown schematically in the unlocked state. The following discussion focuses primarily on the differences between the second embodiment and the locking unit known from the prior art.

[0086] Instead of a rotary latch, the locking unit features 10 according to the second embodiment, a locking pawl 80 , a clamping claw 92 and a resting claw 91 which are offset in the axial direction and parallel to the first bearing bolt 51 are pivotally mounted. The locking pawl 80, the clamping claw 92 and the resting claw 91 are connected to each other in a rotationally fixed manner. The locking claw 91 The latch is located there. 30 opposite and the clamping claw 92 is located on the clamping element 40 opposite.

[0087] The locking latch 80 , the resting claw 91 and the clamping claw 92 They are therefore arranged in separate functional planes. A functional plane extends perpendicular to the axial direction and, unlike a mathematical plane, has an axial extent. The latching pawl 30 is located in the functional plane of the locking claw 91 The clamping element 40 is located in the functional plane of the clamping claw 92 .

[0088] The locking latch 80 has a nose 28 with a holding contour 27 open. In the locked state of the locking unit 10The holding contour is located 27 on the locking bolt 12 to.

[0089] The resting claw 91 has a first support contour 22 , a first closing contour 25 and an open contour 26 open. In the locked state of the locking unit 10 is the rest area 31 the latch 30 slightly from the first support contour 22 the resting claw 91 spaced apart.

[0090] In the unlocked state of the locking unit 10 The open-end contour lies 26 the resting claw 91 at the latch 30 on. During the locking and unlocking of the locking unit 10 The first closing contour is located 25 the resting claw 91 in contact with the locking bolt 12 .

[0091] The clamping claw 92 features a second support contour 22and a second closing contour 25 open. In the locked state of the locking unit 10 The second support contour is located there 22 the clamping claw 92 on the clamping surface 41 of the clamping element 40 to.

[0092] During the locking and unlocking of the locking unit 10 The second closing contour is located 25 the clamping claw 92 in contact with the locking bolt 12 .

[0093] Present on the cover plate 18 is a stop element 60 attached to which the locking bolt 12 in the locked state of the locking unit 10 is present. In the locked state of the locking unit. 10 is the locking bolt 12 so between the holding contour 27 the locking latch 80 and the stop element 60 clamped down.

[0094] The stop element 60 is located at the functional level of the locking pawl. 80 arranged. In the locked state of the locking unit 10 where are the contact points of the locking bolt located? 12 with the holding contour 27 the locking latch 80 as well as with the stop element 60 approximately in a plane that runs perpendicular to the axial direction.

[0095] During the locking and unlocking of the locking unit 10 swivel the clamping claw 92 and the resting claw 91 at the stop element 60 over.

[0096] In Fig. 7 to Fig. Figure 8 is a third embodiment of a locking unit according to the invention. 10 The following discussion focuses primarily on the differences between the third embodiment and the locking unit known from the prior art.

[0097] Instead of a rotary latch, the locking unit features 10 according to the third embodiment, a locking pawl 80 and a claw 90 which are offset in the axial direction and parallel to the first bearing bolt 51 are pivotally mounted. The locking pawl 80 and the claw 90 are connected to each other in a rotationally fixed manner. The claw 90 The latch is located there. 30 and the clamping element 40 opposite.

[0098] The locking latch 80 and the claw 90 They are therefore arranged in separate functional planes. A functional plane extends perpendicular to the axial direction and, unlike a mathematical plane, has an axial extent. The latching pawl 30 and the clamping element 40 are located in the functional plane of the claw 90 .

[0099] The locking latch 80has a first nose 28 with a first holding contour 27 open. In the locked state of the locking unit 10 The first holding contour is located 27 the locking latch 80 on the locking bolt 12 to.

[0100] The claw 90 has a support contour 22 , a closing contour 25 , an open contour 26 and a second nose 28 with a second holding contour 27 on.

[0101] When the locking unit is locked 10 The support contour is located 22 the claw 90 on the clamping surface 41 of the clamping element 40 and the rest area 31 the latch 30 is slightly different from the support contour 22 the claw 90 spaced apart.

[0102] When the locking unit is locked 10Furthermore, the second holding contour is located 27 the claw 90 on the locking bolt 12 to.

[0103] In the unlocked state of the locking unit 10 The open-end contour lies 26 the claw 90 at the latch 30 on. During the locking and unlocking of the locking unit 10 The closing contour is located 25 the claw 90 in contact with the locking bolt 12 .

[0104] Present on the cover plate 18 is a stop element 60 attached to which the locking bolt 12 in the locked state of the locking unit 10 is present. In the locked state of the locking unit. 10 is the locking bolt 12 so between the first holding contour 27 the locking latch 80 and the stop element 60 clamped down.

[0105] The stop element 60 is located at the functional level of the locking pawl. 80 arranged. In the locked state of the locking unit 10 where are the contact points of the locking bolt located? 12 with the first holding contour 27 the locking latch 80 as well as with the stop element 60 approximately in a plane that runs perpendicular to the axial direction.

[0106] During the locking and unlocking of the locking unit 10 swings the claw 90 at the stop element 60 over.

[0107] In Fig. 9 to Fig. Figure 14 is a fourth embodiment of a locking unit according to the invention. 10The fourth embodiment is largely identical to the third. Therefore, the following discussion will focus primarily on the differences between the fourth and third embodiments.

[0108] The locking unit 10 According to the fourth embodiment, it comprises two coupling plates. 62 , which in this case are made of metal and are flat. The two coupling plates 62 run parallel to each other and each has two mounting holes 64 for accommodating two bearing bolts 51 , 52 on.

[0109] A locking latch 80 and a claw 90 are covered by a common sheathing 66 surrounded, which in this case consists of plastic. The casing 66 Among other things, it covers the holding contours. 27 the noses 28 the locking latch 80 and the claw90 In the area where the sheathing 66 the holding contours 27 The covering is the casing. 66 slightly convex in shape.

[0110] The casing 66 is curved in such a way that in the locked state of the locking unit 10 the contact points of the locking bolt 12 with the casing 66 the holding contours 27 as well as with the stop element 60 lie approximately in a plane perpendicular to the axial direction. This also applies if the locking bolt is slightly inclined. 12 to the axial direction, which in Fig. As indicated by a broken border in 13, the contact point of the locking bolt shifts. 12 with the casing 66 the holding contours 27 only negligible in the axial direction.

[0111] The first bearing bolt 51, on which the locking pawl 80 and the claw 90 They are arranged in a pivotable manner, and each side is secured in a mounting hole. 64 a coupling plate 62 inserted and attached there.

[0112] On the second bearing bolt 52 are a spacer 75 , a latch 30 , a clamping element 40 and a companion 76 Mounted side by side so that they can pivot. The second bearing bolt is also included. 52 is inserted into a mounting hole on both sides 64 a coupling plate 62 inserted and attached there.

[0113] By means of a leg spring 77 is the latch 30 to the rotary trap 20 pre-tensioned. The torsion spring 77 is around the second bearing bolt 52 wound around and rests with one spring end against one of the coupling plates. 62 and at the latch 30 away.

[0114] The clamping element 40 is rotationally fixed to the drive pin 76 connected. A tension spring 78 is on the locking pawl 80 and on the carrier 76 attached. By means of the tension spring 78 is the locking pawl 80 in the opening direction and the clamping element 40 to the rotary trap 20 pre-tensioned.

[0115] At the latch 30 is a locking sleeve 35 provided, clipped in here, which is made of plastic and serves to attach an actuating rod not shown here.

[0116] The stop element 60 is attached to the locking latch 80 adjacent coupling plate 62 attached. Optionally, a side plate forms part of a side panel. 16 and a cover plate 18 a lock housing for the locking unit 10 .

[0117] In Fig. 15 is a fifth embodiment of a locking unit according to the invention. 10 The fifth embodiment is largely identical to the fourth embodiment.

[0118] Instead of a tension spring, a compression spring is used. 79 provided, which between the claw 90 and on the clamping element 40 is attached. By means of the compression spring. 79 is the locking pawl 80 in the opening direction and the clamping element 40 to the rotary trap 20 pre-tensioned.

[0119] At the latch 30 intended locking sleeve 35 is an actuating rod 37 attached.

[0120] In Fig. 16 and Fig. 17 is a sixth embodiment of a locking unit according to the invention. 10 The sixth embodiment is largely identical to the fourth embodiment.

[0121] In the two coupling plates 62 is next to the two mounting holes 64 Each has one retaining opening 69 The holding openings are provided. 69 are each designed as an elongated hole. Into the two retaining openings 69 is a retaining bolt 58 inserted. The retaining bolt 58 It is hollow cylindrical in design and has a through-hole. 59 on.

[0122] The retaining bolt 58 The present case has a cross-section which deviates from the circular shape and resembles the elongated shape of the retaining openings. 69 It is adapted. The access opening is also adapted. 59 It has an elongated cross-section that deviates from a circular shape.

[0123] The second bearing bolt is shown here. 52 It is solidly constructed, meaning it has no opening through it.

[0124] For attaching the locking unit 10Two screws are provided, which go into the through-hole. 55 of the first bearing bolt 51 as well as into the access opening 59 of the retaining bolt 58 are used. The screws are screwed into mounting holes in the structural part.

[0125] Due to the elongated cross-section of the through-hole 59 of the retaining bolt 58 The distance between the two screws is variable. This allows for adjustment of the locking unit. 10 Different stitch dimensions of the structural part are possible.

[0126] The distance between the center axes of the mounting holes is called the pitch measurement.

[0127] Alternatively, the retaining bolt 58 similar to the first bearing bolt 51 executed and has a circular cross-section as well as a through-hole. 59with a circular cross-section. For adjusting the locking unit. 10 The retaining bolt can be attached to various thread sizes. 58 within the elongated retaining openings 69 They can be moved. This changes the distance between the two screws that go into the through-hole. 55 of the first bearing bolt 51 as well as into the access opening 59 of the retaining bolt 58 The number of units used is also variable.

[0128] At the latch 30 intended locking sleeve 35 is an actuating rod 37 attached.

[0129] The features disclosed in the foregoing description, claims and drawings may be important for the realization of the invention in its various embodiments, both individually and in combination. Reference symbol list 1 vehicle seat 3 Backrest 5 Seat section 10 locking unit 12 locking bolts 13 first bearing bore 14 second bearing bore 16 side panel 18 Cover plate 20 rotary trap 21 Hook mouth 22 Support contour 24 rotary trap holes 25 Closing contour 26 Open contour 27 Holding contour 28 Nose 30 latching pawl 31 Rest area 34 Latch holes 35 Locking sleeve 37 Actuating rod 40 clamping elements 41 clamping surface 44 clamping element holes 51 first bearing bolt 52 second bearing bolt 55 Passage opening 58 retaining bolts 59 Through-hole 60 Stop element 62 coupling plate 64 retaining holes 66 Sheathing 69 Holding opening 71 first spring 72 second spring 73 third spring 75 spacer 76 drivers 77 Leg spring 78 Tension spring 79 Compression spring 80 locking pawl 90 Claw 91 Resting claw 92 Clamping claw QUOTES INCLUDED IN THE DESCRIPTION

[0130] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0131] WO 2010 / 054860 A2

[0002] DE 202011100040 U1

[0003] DE 102006003022 A1

[0008] DE 102009021297 A1

[0008] DE 10327448 A1

[0008] DE 102009037037 A1

[0008]

Claims

[1] Locking unit ( 10 ) for a vehicle seat ( 1 ), comprising a pawl mounted pivotably about a pivot axis between an open position and a closed position ( 80 ) with a holding contour ( 27 ) for holding a locking bolt ( 12 ) in the closed position, characterized by that at least one claw ( 90 , 91 , 92 ) offset axially to the pawl ( 80 ) is mounted to pivot about the same pivot axis, wherein the claw ( 90 , 91 , 92 ) a closing contour ( 25 ) exhibits the locking latch ( 80 ) by applying pressure to the closing contour ( 25 ) through the locking bolt ( 12 ) can be pivoted from the open position to the closed position. [2] Locking unit ( 10) according to claim 1 characterized by that a stop element ( 60 ) is arranged such that with locked locking unit ( 10 ) the locking bolt ( 12 ) at a first contact point on the stop element ( 60 ) and at a second contact point on the holding contour ( 27 ) is involved the first contact point and the second contact point lie at least approximately in a plane that runs perpendicular to the axial direction. [3] Locking unit ( 10 ) according to claim 2 characterized by that the stop element ( 60 ) offset axially to the claw ( 90 , 91 , 92 ) is arranged. [4] Locking unit ( 10 ) according to one of the foregoing claims characterized by that the claw ( 90 , 91 , 92 ) a support contour ( 22) exhibits which in the closed position of the locking pawl ( 80 ) with a latch ( 30 ) to secure the locking pawl ( 80 ) and / or with a clamping element ( 40 ) to release the locking latch ( 80 ) works together. [5] Locking unit ( 10 ) according to claim 4 characterized by that the clamping element ( 40 ) pivotable about one side relative to the pivot axis of the locking pawl ( 80 ) parallel second pivot axis is pivotably mounted. [6] Locking unit ( 10 ) according to claim 4 characterized by that the clamping element ( 40 ) is designed as a translationally guided wedge. [7] Locking unit ( 10 ) according to one of the foregoing claims characterized by that the claw ( 90 , 91 ) an open contour ( 26 ) which features a locking latch ( 30 ) to secure the latch ( 30) in the open position of the locking pawl ( 80 ) works together. [8] Locking unit ( 10 ) according to one of the foregoing claims characterized by that the locking pawl ( 80 ) and the claw ( 90 , 91 , 92 ) are connected to each other in a rotationally fixed manner. [9] Locking unit ( 10 ) according to one of the foregoing claims characterized by that two coupling plates running parallel to each other ( 62 ) are provided, which have two retaining holes ( 64 ), each containing a bearing bolt ( 51 , 52 ) is used, and a holding opening ( 69 ), into which a retaining bolt ( 58 ) with a through-hole ( 59 ) is used, exhibiting the retaining opening ( 69 ) and / or the access opening ( 59 ) are designed as elongated holes. [10] Vehicle seat ( 1 ), comprising at least one locking unit (10 ) according to one of the foregoing claims.

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