Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
  • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
  • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
  • B60N2/22—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable
  • B60N2/235—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable by gear-pawl type mechanisms
  • B60N2/2356—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable by gear-pawl type mechanisms with internal pawls
  • B60N2/236—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable by gear-pawl type mechanisms with internal pawls linearly movable

Definitions

• the invention relates to a catch fitting for locking two vehicle parts according to the preamble of claim 1.
• Such a detent fitting has a first fitting part and a second fitting part arranged so as to be rotatable about an axis of rotation with respect to the first fitting part.
• On the first fitting part at least one locking bolt is slidably disposed, which can be brought to lock the first fitting part with the second fitting part in engagement with a toothing of the second fitting part and for releasing the latch disengaged from the toothing of the second fitting part.
• a control disk is further provided, which cooperates for producing or releasing the latching with the at least one locking bolt.
• the locking fitting can be used for example on a vehicle seat for connecting a backrest with a seat part, identical detent fittings can be arranged on both sides of the vehicle seat.
• the first Beschiagteil is connected, for example, with the seat part and the second fitting part with the backrest.
• the locking fitting holds in the locked state, the backrest in position to the seat part.
• To pivot the backrest relative to the seat part the Released latching and so the position of the backrest are adjusted relative to the seat part.
• At the second fitting part at least one free-pivoting section is arranged for this purpose, which is designed and cooperate with the locking bolt when the second fitting part is rotated relative to the first fitting part in the predetermined angular range defining a Feischwenk Scheme and an engagement of the locking bar with the toothing of the second To prevent fitting part.
• a detent fitting known from EP 1 066 170 B2 has, for example, two locking bars which are displaceably arranged on a first fitting part and which are displaced in the radial direction via a control disk and thereby engage the detent fitting in engagement with a toothing on a second fitting part or to disengage the lock, can be brought out of engagement with the teeth.
• Einlegering two free-pivoting sections are formed as radially inwardly offset portions, which are each associated with one of the locking bolt and prevent in a predetermined angular range displacement of the locking latch to the outside to exclude in this angular range latching of the detent fitting.
• a free-pivoting area is defined, in which the first and the second fitting part of the detent fitting can be pivoted freely relative to each other, so that, for example, a backrest of a vehicle seat, which is connected via the detent fitting with a seat part, can be adjusted relative to the seat part.
• detent fittings are known from DE 10 2006 015 560 B3, DE 10 2006 000 523 A1 and DE 102 17 873 B4.
• insert ring and control disk are arranged axially offset next to one another.
• On one side of the control disk are the locking bolt and on the other side of the insert ring.
• Object of the present invention is to provide a detent fitting for locking two vehicle parts available that allows a thin design of the detent fitting.
• control disk and the at least one free-pivoting section are cut perpendicular to the axis of rotation of at least one same cross-sectional plane.
• the cross-sectional plane is to be understood as a virtual plane that runs perpendicular to the axis of rotation and intersects both the control disk and the at least one free-pivoting section.
• Control disc and free-pivoting are thus at least partially in the same axial plane and are in other words at least partially arranged in the same plane, so that despite providing the at least one free-pivoting section, the design of the detent fitting in the axial direction does not increase, but a thin design is possible.
• control disk and the free-pivoting section can have different thicknesses and designs in the axial direction.
• at least one cross-sectional plane can always be found perpendicular to the axis of rotation, which cuts both the control disk and the at least one free-pivoting section at least in one section, so that the control disk and the at least one free-pivoting section are arranged at least in sections in the same plane.
• the at least one free-pivoting section is arranged radially to the axis of rotation outside the control disk.
• the free-pivoting section is thus in a radially outer position, while the control disk is arranged radially inwardly offset to the free-pivoting section.
• the control disk it would also be conceivable, however, for the control disk to be arranged in a reverse arrangement radially outside the free-pivoting section.
• two protrusions projecting in the axial direction may be formed on the locking bolt, which projections are offset from one another in the radial direction.
• the locking bar then cooperates with the control disk, while the other, for example, radially outer projection for cooperation with the free-pivoting section is used.
• the projections in this case project in the axially same direction from the locking bolt, so that the two projections are cut from the same cross-sectional plane as the control disk and the at least one free-pivoting section.
• a slotted guide may be provided, in which engages the associated projection of the at least one locking bolt.
• the projection By rotating the control disk, the projection then slides along the sliding guide and thereby causes the at least one locking bolt to be displaced relative to the first fitting part and thereby disengaged from the toothing of the second fitting part in order to unlock the detent fitting.
• the at least one free-pivoting section is advantageously formed on a bearing ring which is fixed against rotation on the second fitting part.
• the insert ring may for example be releasably connected to the second fitting part, wherein the
• Einlegering has at its outer periphery a recess which with a
• Positioning lug on the second fitting part for the rotationally fixed arrangement of the insert ring on the second fitting part can be brought into engagement.
• Fitting part is held and can not be rotated about the axis of rotation.
• the use of a separate, releasably secured to the second fitting part Einlegerings allows the use of different Einlegeringe to provide different free-pivoting sections, so that by using a customized Einlegerings a locking fitting for a particular use can be set.
• This otherwise otherwise identical locking fittings can be adjusted by using individual Einlegeringe different circumstances and requirements.
• the different insert rings have different free-pivoting sections and thus define different free-pivoting areas of the latching fitting, which correspond to angular areas in which the latching fitting can not lock.
• the insert ring can also be fixedly connected to the second fitting part, for example, welded, in order to fix the insert ring to the second fitting part. Such a fixation can in particular facilitate the assembly and hold the insert ring on the second fitting part in an overhead mounting.
• the at least one free-pivoting section is designed as a section of a guide contour arranged on the second fitting part, offset radially inward relative to at least one further section.
• the free-pivoting portion acts, as stated above, with an associated projection on the locking bar, wherein in a predetermined angular range when pivoting the first fitting relative to the second fitting part of the projection is in the region of the free-pivoting portion and characterized in that the free-pivoting portion is offset radially inward, prevents the locking bolt can be moved to its radially outer position and can engage with the toothing on the second fitting part.
• the insert ring can be basically made of a stamped part of metal or, provided sufficient strength, plastic.
• the insert ring can be produced from several individual parts, which are welded together, so as to obtain a closed ring.
• the plurality of parts of the insert ring can be inserted into corresponding recesses on the second fitting part, so that individual segments are used, which together do not result in a closed ring, but define individual free-pivoting sections on the second fitting part.
• the segments can for example be pressed into the recesses on the second fitting part or welded to the second fitting part.
• the at least one free-pivoting section can be bent with an end section parallel to the axis of rotation.
• the free-pivoting section is formed as a radially inwardly offset portion of the insert ring and bent in its radially inner end portion in the axial direction.
• the insert ring can be made of a spring steel strip, which is bent to a ring for attachment to the second fitting part.
• the spring steel strip is not plastically deformed during bending, but remains elastic, so that the spring steel strip is clamped to the second fitting part and thereby held on the second fitting part.
• the spring steel strip can be inserted in this way in a receptacle on the second fitting part to be held by its spring force on the second fitting part.
• a insert ring is provided which is not closed in the state arranged on the second fitting part, but the latter
• a closed spring steel ring can be used, which at its outer
• Circumference is not circular and for attachment to the second fitting part in a
• Curved circular shape and is arranged on the second fitting part. Also in this embodiment, the spring steel ring is elastic and clamped to the second
• Fitting part is held.
• the locking fitting on the nature of the invention presented here have one, two, three, four or more locking latch.
• the catch fitting on three locking bolt which is associated with a free-pivoting each.
• the three locking bolts are in the locked state of the detent fitting in engagement with the toothing of the second fitting part and, in order to release the latch, are displaced in the radial direction on the first fitting part and thus brought out of engagement with the toothing of the second fitting part.
• Fig. 1 is a partial perspective sectional view of a detent fitting
• Figure 2 is an exploded view of a detent fitting with a liner ring.
• FIG. 3 is a plan view of an assembly of insert ring, control disk and locking bolts of the detent fitting of FIG. 2.
• 4A, 4B are plan views of the locking latch in different positions to the insert ring;
• Fig. 5 is a schematic cross-sectional view through the assembly
• 6A, 6B are views of the arrangement of the insert ring on the second fitting part
• 7A, 7B are views of an embodiment of a liner ring with bent end portions
• FIG. 8 is a cross-sectional view of the insert ring according to FIGS. 7A, 7B in FIG.
• FIG. 9 shows a schematic view of a insert ring to be bent from a spring steel strip
• FIG. 10 is a view of a first embodiment of a arranged on the second fitting part, curved insert ring and
• 11 is a view of a second embodiment of one on the second
• Fitting part arranged, curved inserts ring.
• Fig. 1 shows in a partially sectioned, perspective view of an embodiment of a detent fitting 1, which can be used for example in a seat adjustment for adjusting the inclination of a backrest of a vehicle seat use.
• Identical locking fittings 1 are on both sides of the backrest axially offset along a pivot axis of the backrest arranged to each other and connected to each other via a along a rotation axis A extending drive shaft.
• the locking fittings 1 are used for locking the backrest relative to a seat part of the vehicle seat and hold in the locked state, the backrest in position to the seat part.
• About an actuating lever can the locking fittings 1 together connecting drive shaft are actuated, thereby releasing the locking of the locking fittings 1 and adjust the backrest.
• the latching fitting 1 shown in FIG. 1 has a first fitting part 2 which is connected to a second fitting part 3 so as to be pivotable about the rotation axis A via a retaining ring 5 arranged on the first fitting part 2.
• the retaining ring 5 for example, initially mounted with game and then welded to the first fitting part 2.
• Fitting part 2 for example, be connected to the seat part and the second fitting part 3 with the backrest, wherein the pivot axis between the backrest and
• staggered locking bar 25 For locking two three about the rotation axis A by 120 ° to each other staggered locking bar 25 are arranged on the first fitting part 2, which are mounted on guide elements 21, 22 displaceable in a radial adjustment V on the first fitting part 2 and for locking the detent fitting 1 via an outer Gearing 250 can be brought into engagement with a toothing 31 formed as an internal toothing on an annular portion 33 of the second fitting part 3.
• the locking bar 25 in the radial direction guiding elements 21, 22 are formed as raised, in the direction of the second fitting part 3 of a disk-shaped base body 20 portions and serve for a radial guidance of the locking bolt 25 and the other
• the guide elements 21, 22 with their outer portions 211, 221 on the internal teeth formed as a toothing 31 of the second fitting part 3 slidably, so that the first fitting part 2 about the axis of rotation A. is pivotable relative to the second fitting part 3.
• the locking of the detent fitting 1 is made on the locking bar 25 which are in the locked state on the teeth 250 with the teeth 31 of the second fitting part 3 in engagement.
• the actuation of the locking latch 25 for locking the Detent fittings 1 or to release the latching takes place via a arranged between the first fitting part 2 and the second fitting part 3 control disk 4, which is disc-shaped and a central receiving opening 42 for the positive reception of the fitting parts 2, 3 by recesses 27, 32 by cross drive shaft having.
• Fitting part 3 is the projection 251 of the locking bar 25 in the region of a radially outwardly offset portion of the outer sliding portion 410 (but with a certain clearance of this spaced), while the cam 252 of
• Locking bar 25 each bears against a likewise radially outwardly offset portion of the guide portion 430 of the cam disc 43. About the cam plate 43, the locking bolt 25 are thus engaged with the teeth 31 of the second
• Fitting part 3 held.
• control disk 4 is pivoted (by actuation via an engaging into the receiving opening 42 drive shaft) about the axis of rotation A - in the view of FIG. 1 in the counterclockwise direction (in other embodiments, an operation by a pivoting in
• the direction of rotation for actuating can also be dependent, for example, on whether the catch fitting 1 is arranged on the side of the vehicle door or on the tunnel side, that is, toward the center of the vehicle, on the vehicle seat).
• each locking bar 25 slide along the outer link section 410 of the respective associated link 41 and formed at the lower end of the locking bar 25 cam 252 along the guide portion 430 until the projection 251 in contact with a radially inwardly offset portion of the outer link portion 410 and the cam 252 comes into abutment with a radially inwardly offset portion of the guide portion 430 and thereby the locking bar 25 is displaced radially inwardly (in the sense of hysteresis, the cam plate 43, the cam 252 here already some degree of angle before the gate 41 pulls the locking bar 25 inward, release).
• the locking bars 25 are no longer in engagement with the toothing 31 of the second fitting part 3, so that the first fitting part 2 is unlocked from the second fitting part 3 and can be pivoted about the axis of rotation A relative to the second fitting part 3.
• spring elements 24 are arranged on the first fitting part 2 in receptacles 23 and held on the first fitting part 2 via holding elements 230.
• the spring elements 24 bias the cam plate 43 relative to the first fitting part 2 in the direction of the latched state of FIG. 1, so that the detent fitting 1, when the cam plate 4 is not operated, the locking latch 25 holds in the locked position and the first fitting part 2 relative is locked to the second fitting part 3.
• FIG. 2 shows an exploded view of an embodiment of a detent fitting 1, which essentially corresponds to the detent fitting 1 according to FIG. 1, but additionally has a Einlegering 6 which is rotatably mounted on the second fitting part 3.
• FIG. 1 shows an exploded view of an embodiment of a detent fitting 1, which essentially corresponds to the detent fitting 1 according to FIG. 1, but additionally has a Einlegering 6 which is rotatably mounted on the second fitting part 3.
• Insertion ring 6 locking bolts 25a, 25b, 25c and a control disk 4, and Fig. 4A and
• the insert ring 6 is used to provide and define so-called free-pivoting areas of the detent fitting 1 and for this purpose has free-pivoting sections 61, 63, 65, which are formed as sections relative to sections 62, 64, 66 of the insert ring 6 inwardly offset sections.
• the free-pivoting sections 61, 63, 65 together with the sections 62, 64, 66 form a guide contour on the radially inner edge of the insert ring 6 and are designed to cooperate with projections 253 on the locking bars 25a, 25b, 25c of the detent fitting 1.
• the free-pivoting sections 61, 63, 65 are designed such that, when the locking bars 25a, 25b, 25c are in the angular range of the free-pivoting sections 61, 63, 65 with their projections 253 (see FIG. 4B), they prevent the locking bars 25a, 25b, 25c can be moved to a radially outer position, so that they can not get into engagement with the toothing 31 on the second fitting part 3.
• Fig. 3 and Fig. 4A show the assembly of the detent fitting 1 in a position in which the locking bars 25a, 25b, 25c are in a radially outer position and in engagement with the
• Teeth 31 of the second fitting part 3 are (the second fitting part 3 with the
• Toothing 31 is not shown in FIGS. 3, 4A, 4B). In this state is the
• Fitting part 3 are rotated so that, for example, a connected via the locking fitting 1 with a seat part backrest can not be pivoted relative to the seat part.
• the insert ring 6 moves relative to the locking bars 25a, 25b , 25c.
• the locking bars 25a, 25b, 25c are held by continued operation of the control disk 4 out of engagement with the teeth 31 of the second fitting part 3 (wherein the projections 253 of the locking bars 25a, 25b, 25c are not in contact with the sections 62, 64, 66 of the insert ring 6 are).
• the projections 253 of the locking bars 25a, 25b, 25c reach the angular range of the free-pivoting sections 61, 63, 65. This is shown in FIG. 4B. In this angular range of the free-pivoting portions 61, 63, 65 is excluded that the locking bar 25a, 25b, 25c can reach with their teeth 250 in engagement with the toothing 31 of the second fitting part 3.
• the control disk 4 is no longer actuated, for example, because an actuating lever is released, so the control disk 4 tends due to the bias of Although springs 24 back into the latched position and tries to push the locking bar 25a, 25b, 25c radially outward.
• the locking bars 25a, 25b, 25c pass over the projections 253 in each case in contact with the free-pivoting sections 61, 63, 65 and are held over this in a radially inner position, so that they are not in engagement with the toothing 31 of the second fitting part. 3 can reach.
• the free-pivoting sections 61, 63, 65 an engagement of the locking bars 25a, 25b, 25c with the toothing 31 is thus prevented, so that the latching fitting 1 can not lock.
• control disk 4 and the cam disk 43 may be integrally formed as a component, but may also be formed in two parts and connected to each other via, for example, a positive connection.
• the insert ring 6 may be detachably connected to the second fitting part 3.
• the insert ring 6 and the control disk 4 are arranged relative to each other, that, as shown in Fig. 5, a same cross-sectional plane E perpendicular to the axis of rotation A both the insert ring 6 and the control disk 4 intersects , Insert ring 6 and control disk 4 are thus in
• Control disc 4 different thicknesses in the axial direction (in the direction of the axis of rotation A) may have. It is essential that at least one (virtual)
• Cross-sectional level E find that both the insert ring 6 and the
• Control disk 4 cuts.
• the insert ring 6 is arranged radially outside the control disk 4.
• the control disk 4 is thus located radially within a bounded by the insert ring 6 space.
• a same cross-sectional plane E intersects the insert ring 6 and the control disk 4 as well as the projections 251, 253 projecting from the locking bolt 25 in the axial direction.
• the cam plate 43 With the control disk 4, the cam plate 43 is connected, connects axially to this and is for actuating the locking bar 25 with the cam 252 (see FIG. 1) of the locking latch 25 in abutment.
• the insert ring 6 for example, as a stamped metal or, assuming adequate strength, be made of plastic.
• the insert ring 6 is preferably formed from a hardened steel in order to reliably and reliably absorb the load during operation of the catch fitting 1.
• the insert ring 6 is, as shown in FIGS. 6A and 6B, inserted in a receptacle 34 on the second fitting part 3 in a joining direction F, which extends substantially parallel to the axis of rotation A.
• a recess 67 is formed, which is brought into engagement with a positioning lug 340 on the second fitting part 3 such that the insert ring 6 is held against rotation on the second fitting part and not about the axis of rotation A relative to the second fitting part third can be twisted.
• FIGS. 7A and 7B show, in a plan view and in a cross-sectional view along the line AA, views of a further embodiment of an insert ring 6 ', in which end sections 610, 630, 650 of the free pivot sections 61, 63, 65 are bent in the direction of the axis of rotation A.
• the support surface of the free-pivoting sections 61, 63, 65 is enlarged with the projections 253, so that the insert ring 6 'can be made of a thinner material.
• a metal sheet with a thickness of less than 1 mm can be used for the insert ring 6 '.
• 8 shows the insert ring 6 'according to FIGS.
• a cross-sectional plane can be found which intersects both the control disk 4 and the free-pivoting sections 61, 63, 65 (or their end sections 610, 630, 650).
• FIG. 9 Another embodiment of a insert ring 6 "is shown in Fig. 9.
• the insert ring 6" is in an initial form (shown in Fig. 9) as a strip of a spring plate and is for attachment to the second fitting part 3 in the bending direction B with its ends 68a, 68b bent towards each other, so that there is a ring which is inserted into the receptacle 34 (see Fig. 6A) of the second fitting part 3.
• FIGS. 10 and 11 show two variants of such a coiled insert ring 6 ".
• the ends 68a, 68b are bent towards each other and the insert ring 6" becomes with a recess 67 on the positioning nose 340 of the second fitting part 3 arranged.
• the insert ring 6 "exercises in that it is made of a spring plate, a restoring spring force through which the insert ring 6" clamped in the receptacle 34 and is held on the second fitting part 3, without an additional axial securing is required.
• control disk and insert ring exchange their position, so the control disk is thus arranged radially outside of the insert ring.
• control disk and insert ring are substantially in the same plane, so that a flat design of the detent fitting is possible.
• Detent fittings of the type according to the invention can be used in many ways for locking two vehicle parts.
• the use of a vehicle seat is mentioned above.
• other components which are to be pivoted relative to a further vehicle part can be adjusted via such a detent fitting.

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• Engineering & Computer Science (AREA)
• Aviation & Aerospace Engineering (AREA)
• Transportation (AREA)
• Mechanical Engineering (AREA)
• Chairs For Special Purposes, Such As Reclining Chairs (AREA)
• Seats For Vehicles (AREA)
• Lock And Its Accessories (AREA)

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Family

ID=42697406

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• 2009
  • 2009-05-20 DE DE102009022777A patent/DE102009022777A1/de not_active Ceased
• 2010
  • 2010-05-11 CN CN2010800221752A patent/CN102438858B/zh not_active Expired - Fee Related
  • 2010-05-11 WO PCT/DE2010/000523 patent/WO2010133201A1/de active Application Filing
  • 2010-05-17 WO PCT/EP2010/056712 patent/WO2010133538A1/de active Application Filing
  • 2010-05-17 CN CN201080022173.3A patent/CN102438857B/zh active Active

Patent Citations (2)

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