CA3170729A1 - Adjustment device - Google Patents
Adjustment deviceInfo
- Publication number
- CA3170729A1 CA3170729A1 CA3170729A CA3170729A CA3170729A1 CA 3170729 A1 CA3170729 A1 CA 3170729A1 CA 3170729 A CA3170729 A CA 3170729A CA 3170729 A CA3170729 A CA 3170729A CA 3170729 A1 CA3170729 A1 CA 3170729A1
- Authority
- CA
- Canada
- Prior art keywords
- sheet
- trough
- slide bushing
- toothed
- lug
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000003780 insertion Methods 0.000 claims description 6
- 230000037431 insertion Effects 0.000 claims description 6
- 238000009434 installation Methods 0.000 description 12
- 238000003466 welding Methods 0.000 description 6
- 230000009975 flexible effect Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 230000001186 cumulative effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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
- B60N2/2213—Gear wheel driven mechanism
-
- 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
- B60N2/0224—Non-manual adjustments, e.g. with electrical operation
- B60N2/02246—Electric motors therefor
- B60N2/02253—Electric motors therefor characterised by the transmission between the electric motor and the seat or seat parts
-
- 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
- B60N2/0224—Non-manual adjustments, e.g. with electrical operation
- B60N2/02246—Electric motors therefor
- B60N2/02258—Electric motors therefor characterised by the mounting of the electric motor for adjusting the seat
-
- 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
- B60N2/23—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 linear actuators, e.g. linear screw mechanisms
-
- 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
- B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
- B60N2/42—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles the seat constructed to protect the occupant from the effect of abnormal g-forces, e.g. crash or safety seats
- B60N2/433—Safety locks for back-rests, e.g. with locking bars activated by inertia
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Seats For Vehicles (AREA)
Abstract
The invention relates to a adjusting device for a backrest of a motor vehicle rear seat, having a drive (1), wherein the drive (1) comprises an output pinion (2), wherein the output pinion (2) projects through a first sheet (13) towards a second sheet (14), wherein the output pinion (2) adjusts a toothed rack (3a), wherein the toothed rack (3a) is guided between the first sheet (13) and the second sheet (14), wherein the toothed rack (3a) is connected to a further toothed rack (3b), the toothed rack (3a) and the further toothed rack (3b) being arranged next to one another in parallel, the toothed rack (3a) and the further toothed rack (3b) being identical, the toothed racks (3a, 3b) being riveted at one end by a toothed rack rivet (9) and at the other end via a lug (4), and a first toothed gear wheel (5) and a second toothed gear wheel (6) being rotatably held between the first sheet (13) and the second sheet (14), the output pinion (2) being arranged in the installed position between the first toothed gear wheel (5) and the second toothed gear wheel (6), wherein in the installed position, a trough-shaped spring slide bushing (40) surrounds the toothed racks (3a, 3b) and is arranged between the two sheets (13, 14), wherein the through-shaped spring slide bushing (40) is supported by a Z-lug (37), wherein the Z-lug (37) projects from one of the sheets (13, 14) to the other of the sheets (13, 14) and thereby supports a pressure point (33) of the through-shaped spring slide bushing (40).
Description
Adjustment device Technical field The invention relates to an adjusting device according to the preamble of claim 1.
Prior art Such adjusting devices are already known and used in many forms and configurations.
In this context, reference is made to DE 10 2018 106 419 Al, which discloses an adjusting device for a rear seat according to the preamble of claim 1.
For example, the DE 10 2015 121 204 Al discloses a seat fitting for a motor vehicle seat in which a body connection sheet has an accident stop in which an accident catch hook engages in the event of an accident.
Object of the invention The object of the present invention is to overcome the disadvantages of the prior art.
In particular, an adjustment device is to be provided which is intended to eliminate creaking noises and unwanted play occurring in electrical adjustment devices when adjusting the backrest.
Solution of the object The features according to the characterizing park of claim 1 lead to the achievement of the object.
Preferred embodiments can be found in the dependent claims.
An adjustment device according to the invention is provided for adjusting the inclination of a backrest. This primarily concerns a motor vehicle rear seat. In the event of a rear-end collision, the rear seat in particular is subjected to strong forces.
Under the influence of these forces, the rear seat bench should not fold down and thereby transfer energy to the occupants. In everyday use, the aim is to prevent creaking noises caused by the tilt adjustment, which are regularly caused by existing play.
1.
Date Recue/Date Received 2022-08-17 First and foremost, according to the invention, a trough-shaped slide bushing or a trough-shaped spring slide bushing is arranged between the two sheets in the installed position in a force-storing manner. The trough-shaped slide bushing or the trough-shaped spring slide bushing are arranged in the installed position in such a way that toothed racks for adjustment are embraced and arranged between the two sheets.
In this context, force-storing means that the trough-shaped slide bushing or the trough-shaped spring slide bushing are arranged in such a way that they are held between the two sheets in a defined manner without play. This in turn means that it may be a matter of defined clamping, fixing and/or holding. Fixing can take place, for example, by joining or welding or bonding.
In one embodiment, a Z-lug is used. The Z-lug is formed to project from one of the sheets to the other of the sheets. In this process, the Z-Iug is cut free from one of the sheets in such a way that the Z-lug can be bent out from the respective sheet while still forming a tight connection with the sheet. Typically, this process creates an opening in the sheet that substantially corresponds to the shape and dimension of the Z-lug. In the installed condition, the Z-Iug is bent out of the sheet towards the other sheet.
For this purpose, among other things, a trough-shaped slide bushing without springing is used in the installation position, which surrounds the toothed rack and is arranged between the two sheets, wherein the trough-shaped slide bushing is supported by the Z-lug, wherein the Z-lug projects from one of the sheets to the other of the sheets and thereby holds the trough-shaped slide bushing in a supporting manner. In this case, the play and the fixing with the Z-lug are adjusted during manufacture or installation in such a way that a defined play is permitted or completely excluded. The adjustment of the play or the fixing is carried out by means of caulking through the Z-lug and/or welding of the Z-Iug to the trough-shaped slide bushing.
Within the context of the invention, in the installed position generally means the condition which is present as a finished component for installation in a rear seat of a motor vehicle.
Prior art Such adjusting devices are already known and used in many forms and configurations.
In this context, reference is made to DE 10 2018 106 419 Al, which discloses an adjusting device for a rear seat according to the preamble of claim 1.
For example, the DE 10 2015 121 204 Al discloses a seat fitting for a motor vehicle seat in which a body connection sheet has an accident stop in which an accident catch hook engages in the event of an accident.
Object of the invention The object of the present invention is to overcome the disadvantages of the prior art.
In particular, an adjustment device is to be provided which is intended to eliminate creaking noises and unwanted play occurring in electrical adjustment devices when adjusting the backrest.
Solution of the object The features according to the characterizing park of claim 1 lead to the achievement of the object.
Preferred embodiments can be found in the dependent claims.
An adjustment device according to the invention is provided for adjusting the inclination of a backrest. This primarily concerns a motor vehicle rear seat. In the event of a rear-end collision, the rear seat in particular is subjected to strong forces.
Under the influence of these forces, the rear seat bench should not fold down and thereby transfer energy to the occupants. In everyday use, the aim is to prevent creaking noises caused by the tilt adjustment, which are regularly caused by existing play.
1.
Date Recue/Date Received 2022-08-17 First and foremost, according to the invention, a trough-shaped slide bushing or a trough-shaped spring slide bushing is arranged between the two sheets in the installed position in a force-storing manner. The trough-shaped slide bushing or the trough-shaped spring slide bushing are arranged in the installed position in such a way that toothed racks for adjustment are embraced and arranged between the two sheets.
In this context, force-storing means that the trough-shaped slide bushing or the trough-shaped spring slide bushing are arranged in such a way that they are held between the two sheets in a defined manner without play. This in turn means that it may be a matter of defined clamping, fixing and/or holding. Fixing can take place, for example, by joining or welding or bonding.
In one embodiment, a Z-lug is used. The Z-lug is formed to project from one of the sheets to the other of the sheets. In this process, the Z-Iug is cut free from one of the sheets in such a way that the Z-lug can be bent out from the respective sheet while still forming a tight connection with the sheet. Typically, this process creates an opening in the sheet that substantially corresponds to the shape and dimension of the Z-lug. In the installed condition, the Z-Iug is bent out of the sheet towards the other sheet.
For this purpose, among other things, a trough-shaped slide bushing without springing is used in the installation position, which surrounds the toothed rack and is arranged between the two sheets, wherein the trough-shaped slide bushing is supported by the Z-lug, wherein the Z-lug projects from one of the sheets to the other of the sheets and thereby holds the trough-shaped slide bushing in a supporting manner. In this case, the play and the fixing with the Z-lug are adjusted during manufacture or installation in such a way that a defined play is permitted or completely excluded. The adjustment of the play or the fixing is carried out by means of caulking through the Z-lug and/or welding of the Z-Iug to the trough-shaped slide bushing.
Within the context of the invention, in the installed position generally means the condition which is present as a finished component for installation in a rear seat of a motor vehicle.
2 Date Recue/Date Received 2022-08-17 The trough-shaped slide bushing can be made of plastic and can thus be designed flexibly, as can the associated choice of materials.
In a further embodiment, a trough-shaped spring slide bushing, which surrounds the toothed racks and is arranged between the two sheets, is arranged in the installed position in such a way that the trough-shaped spring slide bushing is held in a supporting manner by the two sheets. Supported means that the trough-shaped spring slide bushing is fixed between the two sheets in such a way that the flexible elements of the trough-shaped spring slide bushing are pretensioned in a force-absorbing manner and in a defined form.
In the further embodiment according to the invention, the trough-shaped spring slide bushing is used instead of a trough-shaped slide bushing to achieve the solution according to the invention. For this purpose, among other things, the trough-shaped spring slide bushing is used in the installation position in such a way that it surrounds the toothed racks and is arranged between the two sheets, wherein the trough-shaped spring slide bushing is supported by the Z-lug, wherein the Z-lug projects from one of the sheets to the other of the sheets and thereby holds the trough-shaped spring slide bushing in a supporting manner. In the installation position means the condition that exists as a finished component for installation in a rear seat of a motor vehicle. The trough-shaped spring slide bushing has the characteristic that it has a force-absorbing and possibly force-dispensing function towards the Z-lug. In this way, for example, the adjustment of the play can be carried out more easily, since the flexible characteristic of the trough-shaped spring slide bushing means that a sufficient exclusion of the play can be achieved even with comparatively little caulking of the Z-lug towards the trough-shaped spring slide bushing.
The trough-shaped spring slide bushing is also preferably made of plastic. In addition to the choice of material, additional flexibility is provided by appropriate spring constructions, as described in the following.
The toothed racks run in the trough-shaped spring slide bushing or the trough-shaped slide bushing between the two sheets and are guided on the upper side by two freely rotatable toothed wheels in front of and behind the drive pinion. The gears are
In a further embodiment, a trough-shaped spring slide bushing, which surrounds the toothed racks and is arranged between the two sheets, is arranged in the installed position in such a way that the trough-shaped spring slide bushing is held in a supporting manner by the two sheets. Supported means that the trough-shaped spring slide bushing is fixed between the two sheets in such a way that the flexible elements of the trough-shaped spring slide bushing are pretensioned in a force-absorbing manner and in a defined form.
In the further embodiment according to the invention, the trough-shaped spring slide bushing is used instead of a trough-shaped slide bushing to achieve the solution according to the invention. For this purpose, among other things, the trough-shaped spring slide bushing is used in the installation position in such a way that it surrounds the toothed racks and is arranged between the two sheets, wherein the trough-shaped spring slide bushing is supported by the Z-lug, wherein the Z-lug projects from one of the sheets to the other of the sheets and thereby holds the trough-shaped spring slide bushing in a supporting manner. In the installation position means the condition that exists as a finished component for installation in a rear seat of a motor vehicle. The trough-shaped spring slide bushing has the characteristic that it has a force-absorbing and possibly force-dispensing function towards the Z-lug. In this way, for example, the adjustment of the play can be carried out more easily, since the flexible characteristic of the trough-shaped spring slide bushing means that a sufficient exclusion of the play can be achieved even with comparatively little caulking of the Z-lug towards the trough-shaped spring slide bushing.
The trough-shaped spring slide bushing is also preferably made of plastic. In addition to the choice of material, additional flexibility is provided by appropriate spring constructions, as described in the following.
The toothed racks run in the trough-shaped spring slide bushing or the trough-shaped slide bushing between the two sheets and are guided on the upper side by two freely rotatable toothed wheels in front of and behind the drive pinion. The gears are
3 Date Recue/Date Received 2022-08-17 positioned by a rivet, which also serves as a further element connecting the two sheets together.
Two screws, which are not described in detail, connect the two sheets of the adjustment device to the body of the vehicle. The lug is the connecting element to the backrest and engages in the backrest lock.
In one embodiment, the Z-lug extends from one of the sheets to the other sheet. The Z-lug is pressed over in the installation position towards the trough-shaped slide bushing. By overpressing the Z-lug in the installation position towards the trough-shaped slide bushing, the existing play can be contained in the manner described.
In another embodiment, the trough-shaped spring slide bushing is merely held in a supporting manner by the Z-lug. Overpressing of the Z-lug, as described for the trough-shaped slide bushing, is not excluded in principle, but in many cases is not necessary due to the flexible elements of the trough-shaped spring slide bushing.
In another embodiment, the Z-lug projects from the second sheet into a first sheet recess of the first sheet. In this case, the Z-lug is welded to an edge portion of the first sheet recess. This is a cumulative or alternative form of reducing the play of the adjustment device.
The Z-lug is preferably bent out of a first sheet recess of the first sheet.
This has the advantage of simpler manufacturability, since the Z-lug is punched out of the first sheet on three edges and the resulting lug is then bent in the Z-direction by the connected edge, so that the Z-lug according to the invention is formed.
The trough-shaped spring slide bushing has a trough base from which a first side wall and a second side wall protrude along the respective longitudinal extent of the trough base. This creates a construction that is U-shaped in section. This allows the toothed racks to be accommodated without play in a particularly advantageous manner.
Furthermore, the trough base has a spring carriage on the side projecting away from the side walls, which is flexibly arranged with spring legs against the trough base,
Two screws, which are not described in detail, connect the two sheets of the adjustment device to the body of the vehicle. The lug is the connecting element to the backrest and engages in the backrest lock.
In one embodiment, the Z-lug extends from one of the sheets to the other sheet. The Z-lug is pressed over in the installation position towards the trough-shaped slide bushing. By overpressing the Z-lug in the installation position towards the trough-shaped slide bushing, the existing play can be contained in the manner described.
In another embodiment, the trough-shaped spring slide bushing is merely held in a supporting manner by the Z-lug. Overpressing of the Z-lug, as described for the trough-shaped slide bushing, is not excluded in principle, but in many cases is not necessary due to the flexible elements of the trough-shaped spring slide bushing.
In another embodiment, the Z-lug projects from the second sheet into a first sheet recess of the first sheet. In this case, the Z-lug is welded to an edge portion of the first sheet recess. This is a cumulative or alternative form of reducing the play of the adjustment device.
The Z-lug is preferably bent out of a first sheet recess of the first sheet.
This has the advantage of simpler manufacturability, since the Z-lug is punched out of the first sheet on three edges and the resulting lug is then bent in the Z-direction by the connected edge, so that the Z-lug according to the invention is formed.
The trough-shaped spring slide bushing has a trough base from which a first side wall and a second side wall protrude along the respective longitudinal extent of the trough base. This creates a construction that is U-shaped in section. This allows the toothed racks to be accommodated without play in a particularly advantageous manner.
Furthermore, the trough base has a spring carriage on the side projecting away from the side walls, which is flexibly arranged with spring legs against the trough base,
4 Date Recue/Date Received 2022-08-17 wherein the spring carriage has a pressure point in the center. The advantage of this design is that it can respond to different production tolerances.
Furthermore, the side walls each have a clip foot, wherein the respective clip foot is retracted into clip openings of the two sheets in the installation position.
This allows the trough-shaped spring slide bushing to be fastened and adjusted quickly and easily between the two sheets.
The adjustment device according to the invention has a drive. This drive can be an electric motor. The drive comprises an output pinion. The output pinion projects through a first sheet towards a second sheet, whereby the output pinion adjusts a toothed rack, whereby the toothed rack is guided between the first sheet and the second sheet. When the toothed rack is adjusted, the inclination of the backrest of the motor vehicle rear seat is also adjusted in a desired manner.
The drive is provided by the pinion of an electric motor engaging in the toothing of the toothed racks. The gear is self-locking to keep the toothed rack in position.
The drive in the form of the electric motor is bolted to both sheets. The output shaft is guided by a slide bushing in the vehicle-side connecting sheet, i.e. the second sheet.
The electrically operated adjustment device is intended to electrically adjust the backrest of a 2nd or 3rd row rear seat of a vehicle. For this purpose, the electric motor drives the toothed racks via gear and pinion through their toothing and shifts the position of the lug in both directions in order to adjust the corresponding backrest inclination.
In the event of a crash, the force is transmitted from the backrest via the lug to the housing via the toothed racks. The two toothed racks move towards each other, the gear wheels cause the rack to jam and transfer the force to the two sheets and the vehicle.
The adjustment device shall have a small amount of play in the toothing.
However, this play would have a negative impact on the running behavior and the subjective feel.
The backrest could move back and forth minimally and thus cause noise. To prevent Date Recue/Date Received 2022-08-17 this from happening, the manufacturing tolerances are eliminated by a separate process after assembly. This is achieved, for example, by overpressing the Z-lug to the trough-shaped spring slide bushing and/or a welding point that connects the Z-lug to the opposite sheet and thus provides a firm base for the trough-shaped spring slide bushing in the installation position.
For this purpose, the play is measured and the Z-lug is adjusted upwards or downwards in the Z-direction. The distance between the teeth of the toothed racks is thus adjusted. If the expected play is present, the Z-link is secured by means of a spot weld or caulking or overpressing. This reduces the play via the trough-shaped spring slide bushing and the toothed racks on the gear wheels and eliminates or at least noticeably reduces the play in the adjusting device. During the overpressing, the trough-shaped spring slide bushing acts as play compensation with a lower flexible area that is designed for overpressing. In this case, the play is compensated for by the manufacturing tolerances via the flexible effect of the plastic element, i.e.
the trough-shaped spring slide bushing. To prevent the toothed racks from jumping out of the toothing in the event of an accident or crash, a stop area is provided in the center to limit the spring deflection. Additional play adjustment of the adjustment device is not necessary.
In detail, the Z-lug on the opposite sheet is pushed into the opposite sheet recess into/to which the Z-lug projects during assembly of the adjustment device. The trough-shaped spring slide bushing in which the toothed racks find their lower bearing position now rests on the Z-lug. The upper bearing position of the toothed racks is defined by the two gear wheels. The drive pinion of the drive engages in the toothing of the toothed racks from above in the installation position and can adjust them.
In addition to the toothed rack, another toothed rack is also present. The two toothed racks are connected to each other, whereby the toothed rack and the further toothed rack are arranged parallel to each other, whereby the toothed rack and the further toothed rack are identical.
The toothed racks are designed as stamped parts and have toothing on the upper side.
Two racks are used parallel to each other for a sufficiently large engagement surface.
Date Recue/Date Received 2022-08-17 The two toothed racks are connected at one end by a rivet and at the other end by the riveted lug. The toothed racks have a rack groove opening at one end and an insertion opening at the other.
Two racks are used parallel to each other for a sufficiently large engagement surface.
The two racks are connected by a rivet at the rear end and by the riveted lug at the front end.
The radius of the rack is adapted to the desired kinematics of the backrest.
In the event of an overload, the two toothed racks move relative to each other and tilt against the gear wheels. This in turn prevents the toothed racks from slipping.
The radius of the toothed racks is adapted to the desired kinematics of the backrest.
In the event of an overload, both toothed racks shift relative to each other and tilt against the gear wheels. This in turn prevents the toothed racks from slipping.
The drive is provided by the output pinion of an electric motor engaging in the toothing of the rack. The gear is self-locking to hold the rack in position. The motor is bolted to both sheets. The drive shaft belonging to the output pinion is guided by a slide bushing in the second sheet on the vehicle side.
Furthermore, a first gear wheel and a second gear wheel are rotatably held between the first sheet and the second sheet, the first gear wheel running ahead of the output pinion and the second gear wheel running behind the output pinion. In addition, a trough-shaped spring slide bushing is arranged between the first sheet and the second sheet. The toothed racks run in the trough-shaped spring slide bushing between the two sheets, with the two freely rotatable gear wheels located on the upper side of the toothed racks. The gear wheels are each positioned by a first gear rivet for the first gear wheel and a second gear rivet for the second gear wheel. The two gear rivets also serve as a further element for connecting the two sheets together.
Further, the first sheet comprises a first skid and a sheet wall, wherein the sheet wall includes a pinion opening. Similarly, the second sheet comprises a second skid and a sheet trough, the sheet trough having a slide bushing opening.
Date Recue/Date Received 2022-08-17 Both skids each have a first fastening hole and a second fastening hole. This connects the two sheets to the vehicle body. Two screws connect the two sheets of the adjusting device to the vehicle body.
Date Recue/Date Received 2022-08-17 Detailed description of the figures Further advantages, features and details of the invention result from the following description of preferred embodiments and from the drawings; these show in Figure 1 an exploded view of the adjustment device according to the invention;
Figure 2 the adjusting device according to Figure 1 in a first end position;
Figure 3 the adjusting device according to Figure 1 in a design position;
Figure 4 the adjusting device according to Figure 1 in a second end position;
Figure 5 a view of a first sheet (13);
Figure 6 a view of a second sheet (14);
Figure 7 an enlarged view of a part of Figure 6 and a partial sectional view of Figure 3;
Figure 8 an enlarged view of a part of the adjusting device according to the invention;
Figure 9 an oblique top view of a trough-shaped spring slide bushing;
Figure 10 a side view of the trough-shaped spring slide bushing according to Figure 9.
Figure 11 is an oblique top view of a trough-shaped slide bushing.
Date Recue/Date Received 2022-08-17 Embodiment Figure 1 shows an exploded view of the adjustment device according to the invention.
There, a drive 1 in the form of an electric motor is shown, which drives an output pinion 2. The output pinion 2 is an output pinion gear wheel. A receptacle 23 is arranged between the output pinion 2 and the drive 1. The output pinion 2 projects away from the drive 1 through the receptacle 23.
Further, a first sheet 13 is provided. The first sheet 13 primarily comprises a sheet wall 26 and a first skid 24. The sheet wall 26 extends for approximately half the length of the first skid 24, and projects away from the first skid 24 along this length.
In doing so, the sheet wall 26 and the first skid 24 form an angle of more than 900 at which they extend away from each other. Overall, the first sheet 13 has an L-shape. In the transition of the sheet wall 26 to the first skid 24, a shoulder 34 is present. This shoulder 34 causes the sheet wall 26 to continue on a different plane than the first skid 24.
Furthermore, the first sheet 13 has a pinion opening 22 approximately centrally on the sheet wall 26. The pinion opening 22 serves to ensure that the output pinion 2 engages through the sheet wall 26 in the assembled state.
Further shown is a first gear wheel 5 and a second gear wheel 6. The first gear wheel has a first through-hole 20. The second gear wheel 6 has a second through-hole 21.
The output pinion 2 and the two gear wheels 5, 6 have the same outside diameter and the same tooth geometries.
A toothed rack 3a is also shown. In addition to the toothed rack 3a, a further toothed rack 3b is present. The toothed rack 3a and the further toothed rack 3b are identical, which are joined together by means of a toothed rack rivet 9. The two toothed racks 3a, 3b are identical and congruently arranged next to each other. Congruent means that the two toothed racks 3a, 3b are arranged to each other in such a way that all essential features are parallel next to each other in such a way that they appear to be one piece. In the event of an overload, such as a rear-end collision, both toothed racks 3a, 3b shift relative to each other and tilt against the gear wheels 5, 6.
This in turn prevents the toothed racks 3a, 3b from slipping. To do this, the toothed rack rivet 9 is Date Recue/Date Received 2022-08-17 inserted into a rack rivet opening 29 of the toothed racks 3a, 3b. Then the two identical toothed racks 3a, 3b are riveted to each other. The toothed racks 3a, 3b have a bend.
The radius of the toothed racks 3a, 3b is adapted to the desired kinematics of the backrest. At one end, the toothed racks 3a, 3b have the rack rivet opening 29.
At the other end, the toothed racks 3a, 3b have two insertion openings 17. In addition, the toothed racks 3a, 3b each have a toothed rack stop 36 in the area of the rack rivet opening 29.
The individual toothed racks 3a, 3b are designed as stamped parts and have toothing on the upper side. The upper side is the side of the toothed racks 3a, 3b facing away from the side with the toothed rack stop 36. At least two toothed racks 3a, 3b are used parallel to each other to provide a sufficiently large engagement surface. The two toothed racks 3a, 3b are connected at one end by the toothed rack rivet 9 and at the other end by the riveted lug 4.
The strength of the toothed rack rivet 9 and/or the riveted lug 4 allows the adjustment device to be adapted to the conditions and the targeted impact speeds, for example in a rear-end collision, so that the two toothed racks 3a, 3b move apart at the right time and allow the entire device to jam.
The insertion openings 17 pass through both toothed racks 3a, 3b and serve to receive the lug 4. The lug 4 describes a partial circle and has a fastening opening 18. The lug 4 is the connecting element to a backrest of a motor vehicle seat and, for this purpose, drops into a backrest lock which is not shown. The lug 4 is inserted into the insertion openings 17 of the toothed racks 3a, 3b and riveted.
Furthermore, a trough-shaped spring slide bushing 40 is shown. In the preferred embodiment, the trough-shaped spring slide bushing 40 is made of plastic. The trough-shaped spring slide bushing 40 has a U-shape. In the installed position, i.e.
in the installed state, the trough-shaped spring slide bushing 40 surrounds the toothed racks 3a, 3b.
As shown in Figures 9 and 10, the trough-shaped spring slide bushing 40 is configured in such a way that the trough-shaped spring slide bushing 40 has a trough base Date Recue/Date Received 2022-08-17 from which a first side wall 42 and a second side wall 43 protrude along the respective longitudinal extent of the trough base 41.
The trough base 41 has a spring carriage 32 on the side projecting away from the side walls 42, 43, which is flexibly arranged with spring legs 35 against the trough base 41, wherein the spring carriage 32 has a pressure point 33 in the center.
The side walls 42, 43 each have a clip foot 10, 11, wherein the respective clip foot 10, 11 is retracted into clip openings of the two sheets 13, 14 in the installed position.
It can further be seen that the trough-shaped spring slide bushing 40 forms respective trough stops 19 in the end region of the longitudinal extent of the trough-shaped spring slide bushing 40, which are formed away from the trough base 41 from the region of the side walls 42, 43. Thereby, the trough stops 19 enclose a part of the sheets 13, 14.
The trough-shaped spring slide bushing 40 thus facilitates the adjustment of the toothed racks 3a, 3b to different positions and thus also the adjustment of the inclination of the backrest of the motor vehicle seat.
Figure 11 shows a trough-shaped slide bushing 46 which is identical in basic construction to the trough-shaped spring slide bushing 40. In consequence, the trough-shaped slide bushing 46 also has the trough base 41, with both flanking side walls 42, 43, and the clip feet 10, 11 projecting away from the trough base 41 on the side walls 42, 43. The two trough stops 19 are also formed in each case at the ends in the longitudinal extension. Only the spring elements in the form of the spring carriage 32, which is flexibly arranged with spring legs 35 against the trough base 41 and has a pressure point 33 in the middle, are missing in the trough-shaped slide bushing 46.
Therefore, the explanations for the other figures should also apply to figure 11 as soon as the features of the trough-shaped slide bushing 46 are concerned.
The second sheet 14 primarily comprises a second skid 25 and a sheet trough 27. The sheet trough 27 extends for approximately half the length of the second skid 25, and projects away from the second skid 25 along this length. In doing so, the sheet trough Date Recue/Date Received 2022-08-17 27 and the second skid 25 form an angle of more than 900 at which they extend away from each other. Overall, the second sheet 14 has an L-shape.
Further, the second sheet 14 has a slide bushing opening 28 approximately centered on the sheet trough 27. The slide bushing opening 28 accommodates a slide bushing 12. In the assembled state, the output pinion 2 is guided by a slide bushing 12 in the vehicle-side second sheet 14.
Further shown is a first gear wheel rivet 7 and a second gear wheel rivet 8.
The first gear wheel rivet 7 engages the sheet wall 26 through the sheet trough 27, the first through-hole 20 of the first gear wheel 5, and opens into the receptacle 23.
In the installed state, the first gear wheel rivet 27 serves as the axis of rotation for the first gear wheel 5. The second gear wheel rivet 8 also engages through the sheet trough 27, the second through-hole 21 of the second gear wheel 6, the sheet wall 26 and opens into the receptacle 23. In the installed state, the second gear wheel rivet 27 serves as the axis of rotation for the second gear wheel 6. For this purpose, the respective components have bores and/or threads.
Furthermore, a first sheet screw 15 and a second sheet screw 16 are shown.
They primarily serve to fasten the first sheet 13 and the second sheet 14 to each other and to the receptacle 23. For this purpose, the respective components have holes and/or threads.
In the assembled state, the toothed rack 3a and the further toothed rack 3b are guided and held on the longitudinal sides on the one hand by the trough-shaped spring slide bushing 40 and on the other hand by the first gear wheel 5 and the second gear wheel 6. The two gear wheels 5, 6 form the counter bearing to the trough-shaped spring slide bushing 40. The two gear wheels 5, 6 are mounted on the side of the toothed racks 3a, 3b that does not have the toothed rack stop 36.
According to the invention, the second gear wheel 6 has a second through-hole 21, wherein a second gear wheel rivet 8 rotatably holds the second gear wheel 6 between the first sheet 13 and the second sheet 14 through the second through-hole 21.
Date Recue/Date Received 2022-08-17 In Figure 2, the adjustment device according to Figure 1 is shown in a first end position.
In the first end position, the toothed rack 3 is positioned in such a way that the lug 4 is displaced towards the sheet trough 27.
Further shown in Figure 2 is a first fastening hole 30 and a second fastening hole 31.
The two fastening holes 30, 31 serve to fasten the two sheets 13, 14 and thus the adjusting device to the vehicle body.
The other components shown in Figure 2 have already been named and appreciated in Figure 1. The comments on the individual components from Figure 1 also apply to the following Figures 2 to 4.
Independently of this, Figure 3 shows the adjustment device according to Figure 1 in a design position and, similarly, Figure 4 shows the adjustment device according to Figure 1 in a second end position.
In Figure 5, the first sheet 13 is shown alone. The first sheet 13 comprises the first skid 24 and the sheet wall 26. Between the skid 24 and the sheet wall 26 there is the shoulder 34. The first sheet recess 38 is embedded in the shoulder 34. The first sheet recess 38 is substantially rectangular in shape. Furthermore, the sheet wall 26 has circular pinion opening 22.
Figure 6 shows only the second sheet 14. The second sheet 14 has the second skid 25. Furthermore, the sheet trough 27 is formed after a shoulder. The circular slide bushing opening 28 is recessed in the sheet trough 27. In addition, the second sheet recess 39 can be seen, from which the Z-lug 37 is stamped out and bent out.
Figure 7 shows a form of fixing the Z-lug 37 In this case, the Z-lug 37 is pressed in the installation position in the pressing direction 44 towards the trough-shaped spring slide bushing 40 and then or simultaneously fixed with a welding point 45. In the process, the welding point 45 connects the Z-lug 37 to the first sheet recess 38.
Figure 8 shows an alternative or cumulative form of eliminating play in the adjustment device. In this case, the Z-lug 37 is over pressed in the installed position.
In this case, Date Recue/Date Received 2022-08-17 the Z-lug 37 is over pressed in the installed position towards the trough-shaped spring slide bushing 40. An overpressing occurs when the Z-lug 37 is pressed from the horizontal starting position towards the trough-shaped spring slide bushing 40.
Date Recue/Date Received 2022-08-17 Reference symbol list 1 drive 2 output pinion 3a toothed rack 3b further toothed rack 4 lug first gear wheel 6 second gear wheel 7 first gear wheel rivet 8 second gear wheel rivet 9 toothed rack rivet clip foot 11 clip foot 12 slide bushing 13 first sheet 14 second sheet first sheet screw 16 second sheet screw 17 insertion opening 18 fastening opening 19 trough stop first through-hole 21 second through-hole 22 pinion opening 23 receptacle 24 first skid second skid 26 sheet wall 27 sheet trough 28 slide bushing opening 29 rack rivet opening first fastening hole 31 second fastening hole 32 a spring carriage 33 pressure point 34 shoulder spring leg 36 toothed rack stop 37 Z-lug 38 first sheet recess 39 second sheet recess spring slide bushing 41 trough base 42 first side wall 43 second side wall 44 pressing direction welding point 46 trough-shaped slide bushing Date Recue/Date Received 2022-08-17
Furthermore, the side walls each have a clip foot, wherein the respective clip foot is retracted into clip openings of the two sheets in the installation position.
This allows the trough-shaped spring slide bushing to be fastened and adjusted quickly and easily between the two sheets.
The adjustment device according to the invention has a drive. This drive can be an electric motor. The drive comprises an output pinion. The output pinion projects through a first sheet towards a second sheet, whereby the output pinion adjusts a toothed rack, whereby the toothed rack is guided between the first sheet and the second sheet. When the toothed rack is adjusted, the inclination of the backrest of the motor vehicle rear seat is also adjusted in a desired manner.
The drive is provided by the pinion of an electric motor engaging in the toothing of the toothed racks. The gear is self-locking to keep the toothed rack in position.
The drive in the form of the electric motor is bolted to both sheets. The output shaft is guided by a slide bushing in the vehicle-side connecting sheet, i.e. the second sheet.
The electrically operated adjustment device is intended to electrically adjust the backrest of a 2nd or 3rd row rear seat of a vehicle. For this purpose, the electric motor drives the toothed racks via gear and pinion through their toothing and shifts the position of the lug in both directions in order to adjust the corresponding backrest inclination.
In the event of a crash, the force is transmitted from the backrest via the lug to the housing via the toothed racks. The two toothed racks move towards each other, the gear wheels cause the rack to jam and transfer the force to the two sheets and the vehicle.
The adjustment device shall have a small amount of play in the toothing.
However, this play would have a negative impact on the running behavior and the subjective feel.
The backrest could move back and forth minimally and thus cause noise. To prevent Date Recue/Date Received 2022-08-17 this from happening, the manufacturing tolerances are eliminated by a separate process after assembly. This is achieved, for example, by overpressing the Z-lug to the trough-shaped spring slide bushing and/or a welding point that connects the Z-lug to the opposite sheet and thus provides a firm base for the trough-shaped spring slide bushing in the installation position.
For this purpose, the play is measured and the Z-lug is adjusted upwards or downwards in the Z-direction. The distance between the teeth of the toothed racks is thus adjusted. If the expected play is present, the Z-link is secured by means of a spot weld or caulking or overpressing. This reduces the play via the trough-shaped spring slide bushing and the toothed racks on the gear wheels and eliminates or at least noticeably reduces the play in the adjusting device. During the overpressing, the trough-shaped spring slide bushing acts as play compensation with a lower flexible area that is designed for overpressing. In this case, the play is compensated for by the manufacturing tolerances via the flexible effect of the plastic element, i.e.
the trough-shaped spring slide bushing. To prevent the toothed racks from jumping out of the toothing in the event of an accident or crash, a stop area is provided in the center to limit the spring deflection. Additional play adjustment of the adjustment device is not necessary.
In detail, the Z-lug on the opposite sheet is pushed into the opposite sheet recess into/to which the Z-lug projects during assembly of the adjustment device. The trough-shaped spring slide bushing in which the toothed racks find their lower bearing position now rests on the Z-lug. The upper bearing position of the toothed racks is defined by the two gear wheels. The drive pinion of the drive engages in the toothing of the toothed racks from above in the installation position and can adjust them.
In addition to the toothed rack, another toothed rack is also present. The two toothed racks are connected to each other, whereby the toothed rack and the further toothed rack are arranged parallel to each other, whereby the toothed rack and the further toothed rack are identical.
The toothed racks are designed as stamped parts and have toothing on the upper side.
Two racks are used parallel to each other for a sufficiently large engagement surface.
Date Recue/Date Received 2022-08-17 The two toothed racks are connected at one end by a rivet and at the other end by the riveted lug. The toothed racks have a rack groove opening at one end and an insertion opening at the other.
Two racks are used parallel to each other for a sufficiently large engagement surface.
The two racks are connected by a rivet at the rear end and by the riveted lug at the front end.
The radius of the rack is adapted to the desired kinematics of the backrest.
In the event of an overload, the two toothed racks move relative to each other and tilt against the gear wheels. This in turn prevents the toothed racks from slipping.
The radius of the toothed racks is adapted to the desired kinematics of the backrest.
In the event of an overload, both toothed racks shift relative to each other and tilt against the gear wheels. This in turn prevents the toothed racks from slipping.
The drive is provided by the output pinion of an electric motor engaging in the toothing of the rack. The gear is self-locking to hold the rack in position. The motor is bolted to both sheets. The drive shaft belonging to the output pinion is guided by a slide bushing in the second sheet on the vehicle side.
Furthermore, a first gear wheel and a second gear wheel are rotatably held between the first sheet and the second sheet, the first gear wheel running ahead of the output pinion and the second gear wheel running behind the output pinion. In addition, a trough-shaped spring slide bushing is arranged between the first sheet and the second sheet. The toothed racks run in the trough-shaped spring slide bushing between the two sheets, with the two freely rotatable gear wheels located on the upper side of the toothed racks. The gear wheels are each positioned by a first gear rivet for the first gear wheel and a second gear rivet for the second gear wheel. The two gear rivets also serve as a further element for connecting the two sheets together.
Further, the first sheet comprises a first skid and a sheet wall, wherein the sheet wall includes a pinion opening. Similarly, the second sheet comprises a second skid and a sheet trough, the sheet trough having a slide bushing opening.
Date Recue/Date Received 2022-08-17 Both skids each have a first fastening hole and a second fastening hole. This connects the two sheets to the vehicle body. Two screws connect the two sheets of the adjusting device to the vehicle body.
Date Recue/Date Received 2022-08-17 Detailed description of the figures Further advantages, features and details of the invention result from the following description of preferred embodiments and from the drawings; these show in Figure 1 an exploded view of the adjustment device according to the invention;
Figure 2 the adjusting device according to Figure 1 in a first end position;
Figure 3 the adjusting device according to Figure 1 in a design position;
Figure 4 the adjusting device according to Figure 1 in a second end position;
Figure 5 a view of a first sheet (13);
Figure 6 a view of a second sheet (14);
Figure 7 an enlarged view of a part of Figure 6 and a partial sectional view of Figure 3;
Figure 8 an enlarged view of a part of the adjusting device according to the invention;
Figure 9 an oblique top view of a trough-shaped spring slide bushing;
Figure 10 a side view of the trough-shaped spring slide bushing according to Figure 9.
Figure 11 is an oblique top view of a trough-shaped slide bushing.
Date Recue/Date Received 2022-08-17 Embodiment Figure 1 shows an exploded view of the adjustment device according to the invention.
There, a drive 1 in the form of an electric motor is shown, which drives an output pinion 2. The output pinion 2 is an output pinion gear wheel. A receptacle 23 is arranged between the output pinion 2 and the drive 1. The output pinion 2 projects away from the drive 1 through the receptacle 23.
Further, a first sheet 13 is provided. The first sheet 13 primarily comprises a sheet wall 26 and a first skid 24. The sheet wall 26 extends for approximately half the length of the first skid 24, and projects away from the first skid 24 along this length.
In doing so, the sheet wall 26 and the first skid 24 form an angle of more than 900 at which they extend away from each other. Overall, the first sheet 13 has an L-shape. In the transition of the sheet wall 26 to the first skid 24, a shoulder 34 is present. This shoulder 34 causes the sheet wall 26 to continue on a different plane than the first skid 24.
Furthermore, the first sheet 13 has a pinion opening 22 approximately centrally on the sheet wall 26. The pinion opening 22 serves to ensure that the output pinion 2 engages through the sheet wall 26 in the assembled state.
Further shown is a first gear wheel 5 and a second gear wheel 6. The first gear wheel has a first through-hole 20. The second gear wheel 6 has a second through-hole 21.
The output pinion 2 and the two gear wheels 5, 6 have the same outside diameter and the same tooth geometries.
A toothed rack 3a is also shown. In addition to the toothed rack 3a, a further toothed rack 3b is present. The toothed rack 3a and the further toothed rack 3b are identical, which are joined together by means of a toothed rack rivet 9. The two toothed racks 3a, 3b are identical and congruently arranged next to each other. Congruent means that the two toothed racks 3a, 3b are arranged to each other in such a way that all essential features are parallel next to each other in such a way that they appear to be one piece. In the event of an overload, such as a rear-end collision, both toothed racks 3a, 3b shift relative to each other and tilt against the gear wheels 5, 6.
This in turn prevents the toothed racks 3a, 3b from slipping. To do this, the toothed rack rivet 9 is Date Recue/Date Received 2022-08-17 inserted into a rack rivet opening 29 of the toothed racks 3a, 3b. Then the two identical toothed racks 3a, 3b are riveted to each other. The toothed racks 3a, 3b have a bend.
The radius of the toothed racks 3a, 3b is adapted to the desired kinematics of the backrest. At one end, the toothed racks 3a, 3b have the rack rivet opening 29.
At the other end, the toothed racks 3a, 3b have two insertion openings 17. In addition, the toothed racks 3a, 3b each have a toothed rack stop 36 in the area of the rack rivet opening 29.
The individual toothed racks 3a, 3b are designed as stamped parts and have toothing on the upper side. The upper side is the side of the toothed racks 3a, 3b facing away from the side with the toothed rack stop 36. At least two toothed racks 3a, 3b are used parallel to each other to provide a sufficiently large engagement surface. The two toothed racks 3a, 3b are connected at one end by the toothed rack rivet 9 and at the other end by the riveted lug 4.
The strength of the toothed rack rivet 9 and/or the riveted lug 4 allows the adjustment device to be adapted to the conditions and the targeted impact speeds, for example in a rear-end collision, so that the two toothed racks 3a, 3b move apart at the right time and allow the entire device to jam.
The insertion openings 17 pass through both toothed racks 3a, 3b and serve to receive the lug 4. The lug 4 describes a partial circle and has a fastening opening 18. The lug 4 is the connecting element to a backrest of a motor vehicle seat and, for this purpose, drops into a backrest lock which is not shown. The lug 4 is inserted into the insertion openings 17 of the toothed racks 3a, 3b and riveted.
Furthermore, a trough-shaped spring slide bushing 40 is shown. In the preferred embodiment, the trough-shaped spring slide bushing 40 is made of plastic. The trough-shaped spring slide bushing 40 has a U-shape. In the installed position, i.e.
in the installed state, the trough-shaped spring slide bushing 40 surrounds the toothed racks 3a, 3b.
As shown in Figures 9 and 10, the trough-shaped spring slide bushing 40 is configured in such a way that the trough-shaped spring slide bushing 40 has a trough base Date Recue/Date Received 2022-08-17 from which a first side wall 42 and a second side wall 43 protrude along the respective longitudinal extent of the trough base 41.
The trough base 41 has a spring carriage 32 on the side projecting away from the side walls 42, 43, which is flexibly arranged with spring legs 35 against the trough base 41, wherein the spring carriage 32 has a pressure point 33 in the center.
The side walls 42, 43 each have a clip foot 10, 11, wherein the respective clip foot 10, 11 is retracted into clip openings of the two sheets 13, 14 in the installed position.
It can further be seen that the trough-shaped spring slide bushing 40 forms respective trough stops 19 in the end region of the longitudinal extent of the trough-shaped spring slide bushing 40, which are formed away from the trough base 41 from the region of the side walls 42, 43. Thereby, the trough stops 19 enclose a part of the sheets 13, 14.
The trough-shaped spring slide bushing 40 thus facilitates the adjustment of the toothed racks 3a, 3b to different positions and thus also the adjustment of the inclination of the backrest of the motor vehicle seat.
Figure 11 shows a trough-shaped slide bushing 46 which is identical in basic construction to the trough-shaped spring slide bushing 40. In consequence, the trough-shaped slide bushing 46 also has the trough base 41, with both flanking side walls 42, 43, and the clip feet 10, 11 projecting away from the trough base 41 on the side walls 42, 43. The two trough stops 19 are also formed in each case at the ends in the longitudinal extension. Only the spring elements in the form of the spring carriage 32, which is flexibly arranged with spring legs 35 against the trough base 41 and has a pressure point 33 in the middle, are missing in the trough-shaped slide bushing 46.
Therefore, the explanations for the other figures should also apply to figure 11 as soon as the features of the trough-shaped slide bushing 46 are concerned.
The second sheet 14 primarily comprises a second skid 25 and a sheet trough 27. The sheet trough 27 extends for approximately half the length of the second skid 25, and projects away from the second skid 25 along this length. In doing so, the sheet trough Date Recue/Date Received 2022-08-17 27 and the second skid 25 form an angle of more than 900 at which they extend away from each other. Overall, the second sheet 14 has an L-shape.
Further, the second sheet 14 has a slide bushing opening 28 approximately centered on the sheet trough 27. The slide bushing opening 28 accommodates a slide bushing 12. In the assembled state, the output pinion 2 is guided by a slide bushing 12 in the vehicle-side second sheet 14.
Further shown is a first gear wheel rivet 7 and a second gear wheel rivet 8.
The first gear wheel rivet 7 engages the sheet wall 26 through the sheet trough 27, the first through-hole 20 of the first gear wheel 5, and opens into the receptacle 23.
In the installed state, the first gear wheel rivet 27 serves as the axis of rotation for the first gear wheel 5. The second gear wheel rivet 8 also engages through the sheet trough 27, the second through-hole 21 of the second gear wheel 6, the sheet wall 26 and opens into the receptacle 23. In the installed state, the second gear wheel rivet 27 serves as the axis of rotation for the second gear wheel 6. For this purpose, the respective components have bores and/or threads.
Furthermore, a first sheet screw 15 and a second sheet screw 16 are shown.
They primarily serve to fasten the first sheet 13 and the second sheet 14 to each other and to the receptacle 23. For this purpose, the respective components have holes and/or threads.
In the assembled state, the toothed rack 3a and the further toothed rack 3b are guided and held on the longitudinal sides on the one hand by the trough-shaped spring slide bushing 40 and on the other hand by the first gear wheel 5 and the second gear wheel 6. The two gear wheels 5, 6 form the counter bearing to the trough-shaped spring slide bushing 40. The two gear wheels 5, 6 are mounted on the side of the toothed racks 3a, 3b that does not have the toothed rack stop 36.
According to the invention, the second gear wheel 6 has a second through-hole 21, wherein a second gear wheel rivet 8 rotatably holds the second gear wheel 6 between the first sheet 13 and the second sheet 14 through the second through-hole 21.
Date Recue/Date Received 2022-08-17 In Figure 2, the adjustment device according to Figure 1 is shown in a first end position.
In the first end position, the toothed rack 3 is positioned in such a way that the lug 4 is displaced towards the sheet trough 27.
Further shown in Figure 2 is a first fastening hole 30 and a second fastening hole 31.
The two fastening holes 30, 31 serve to fasten the two sheets 13, 14 and thus the adjusting device to the vehicle body.
The other components shown in Figure 2 have already been named and appreciated in Figure 1. The comments on the individual components from Figure 1 also apply to the following Figures 2 to 4.
Independently of this, Figure 3 shows the adjustment device according to Figure 1 in a design position and, similarly, Figure 4 shows the adjustment device according to Figure 1 in a second end position.
In Figure 5, the first sheet 13 is shown alone. The first sheet 13 comprises the first skid 24 and the sheet wall 26. Between the skid 24 and the sheet wall 26 there is the shoulder 34. The first sheet recess 38 is embedded in the shoulder 34. The first sheet recess 38 is substantially rectangular in shape. Furthermore, the sheet wall 26 has circular pinion opening 22.
Figure 6 shows only the second sheet 14. The second sheet 14 has the second skid 25. Furthermore, the sheet trough 27 is formed after a shoulder. The circular slide bushing opening 28 is recessed in the sheet trough 27. In addition, the second sheet recess 39 can be seen, from which the Z-lug 37 is stamped out and bent out.
Figure 7 shows a form of fixing the Z-lug 37 In this case, the Z-lug 37 is pressed in the installation position in the pressing direction 44 towards the trough-shaped spring slide bushing 40 and then or simultaneously fixed with a welding point 45. In the process, the welding point 45 connects the Z-lug 37 to the first sheet recess 38.
Figure 8 shows an alternative or cumulative form of eliminating play in the adjustment device. In this case, the Z-lug 37 is over pressed in the installed position.
In this case, Date Recue/Date Received 2022-08-17 the Z-lug 37 is over pressed in the installed position towards the trough-shaped spring slide bushing 40. An overpressing occurs when the Z-lug 37 is pressed from the horizontal starting position towards the trough-shaped spring slide bushing 40.
Date Recue/Date Received 2022-08-17 Reference symbol list 1 drive 2 output pinion 3a toothed rack 3b further toothed rack 4 lug first gear wheel 6 second gear wheel 7 first gear wheel rivet 8 second gear wheel rivet 9 toothed rack rivet clip foot 11 clip foot 12 slide bushing 13 first sheet 14 second sheet first sheet screw 16 second sheet screw 17 insertion opening 18 fastening opening 19 trough stop first through-hole 21 second through-hole 22 pinion opening 23 receptacle 24 first skid second skid 26 sheet wall 27 sheet trough 28 slide bushing opening 29 rack rivet opening first fastening hole 31 second fastening hole 32 a spring carriage 33 pressure point 34 shoulder spring leg 36 toothed rack stop 37 Z-lug 38 first sheet recess 39 second sheet recess spring slide bushing 41 trough base 42 first side wall 43 second side wall 44 pressing direction welding point 46 trough-shaped slide bushing Date Recue/Date Received 2022-08-17
Claims (15)
1. Adjusting device for a backrest of a motor vehicle rear seat, having a drive (1), wherein the drive (1) comprises an output pinion (2), wherein the output pinion (2) projects through a first sheet (13) towards a second sheet (14), wherein the output pinion (2) adjusts a toothed rack (3a), wherein the toothed rack (3a) is guided between the first sheet (13) and the second sheet (14), wherein the toothed rack (3a) is connected to a further toothed rack (3b), the toothed rack (3a) and the further toothed rack (3b) being arranged next to one another in parallel, the toothed rack (3a) and the further toothed rack (3b) being identical, the toothed racks (3a, 3b) being riveted at one end by a toothed rack rivet (9) and at the other end via a lug (4), and a first toothed gear wheel (5) and a second toothed gear wheel (6) being rotatably held between the first sheet (13) and the second sheet (14), the output pinion (2) being arranged in the installed position between the first toothed gear wheel (5) and the second toothed gear wheel (6), characterized in that a trough-shaped slide bushing (46) or a trough-shaped spring slide bushing (40) is arranged between the two sheets (13, 14) in a force-storing manner in the installed position.
2. Adjusting device according to claim 1, characterized in that the trough-shaped slide bushing (46) embraces the toothed racks (3a, 3b) and is arranged between the two sheets (13, 14), the trough-shaped slide bushing being supported by a Z-lug (37), the Z-lug (37) projecting from one of the sheets (13, 14) to the other of the sheets (13, 14), thereby supportingly holding the trough-shaped slide bushing.
3. Adjusting device according to claim 1 or 2, characterized in that, in the installed position, a trough-shaped spring slide bushing (40) surrounds the toothed racks (3a, 3b) and is arranged between the two sheets (13, 14), the trough-shaped spring slide bushing (40) being held in a supporting manner by the two sheets (13, 14).
Date Recue/Date Received 2022-08-17
Date Recue/Date Received 2022-08-17
4. Adjusting device according to one of the preceding claims, characterized in that, in the installed position, a trough-shaped spring slide bushing (40) surrounds the toothed racks (3a, 3b) and is arranged between the two sheets (13, 14), wherein the trough-shaped spring slide bushing (40) is supported by the Z-lug (37), wherein the Z-lug (37) projects from one of the sheets (13, 14) to the other of the sheets (13, 14) and thereby supportingly holds the trough-shaped spring slide bushing (40).
5. Adjusting device according to any one of claims 2 or 4, characterized in that the Z-lug (37) extends from one of the sheets (13, 14) to the other sheet (13, 14).
6. Adjusting device according to any one of claims 2, 4 and 5, characterized in that the Z-lug (37) projects from the second sheet (14) into a first sheet recess (38) of the first sheet (13).
7. Adjusting device according to claim 6, characterized in that the Z-lug (37) is welded to an edge region of the first sheet recess (38).
8. Adjusting device according to any one of the preceding claims 2, 4 to 7, characterized in that the Z-lug (37) is bent out of a first sheet recess (38) of the first sheet (13).
9. Adjusting device according to any one of the preceding claims 2, 4 to 8, characterized in that the Z-lug (37) is pressed over towards the trough-shaped slide bushing (46) or the trough-shaped spring slide bushing (40) in the installed position.
10. Adjusting device according to one of the preceding claims, characterized in that the trough-shaped slide bushing (46) or the trough-shaped spring slide bushing (40) has a trough base (41) from which a first side wall (42) and a second side wall (43) project at the respective longitudinal extension of the trough base (41).
11. Adjusting device according to claim 10, characterized in that the trough base (41) of the trough-shaped spring slide bushing (40) has a spring carriage (32) on the side projecting away from the side walls (42, 43), which is flexibly arranged with spring Date Recue/Date Received 2022-08-17 legs against the trough base (41), the spring carriage (32) centrally having a pressure point (33).
12. Adjusting device according to claim 10 or 11, characterized in that the side walls (42, 43) each have a clip foot (10, 11), the respective clip foot (10, 11) being retracted into clip openings of the two sheets (13, 14) in the installed position.
13. Adjusting device according to one of the preceding claims, characterized in that the first sheet (13) consists of a first skid (24) and a sheet wall (26), wherein the sheet wall (26) has a pinion opening (22), wherein the second sheet (14) consists of a second skid (25) and a sheet trough (27), wherein the sheet trough (27) has a slide bushing opening (28), wherein both skids (24, 25) each have a first fastening hole (30) and a second fastening hole (31).
14. Adjusting device according to one of the preceding claims, characterized in that the toothed racks (3a, 3b) have a rack rivet opening (29) at one end and an insertion opening (17) at the other end.
15. An adjusting device according to any one of the preceding claims, characterized in that the first gear wheel (5) has a first through-hole (20), wherein a first gear rivet (7) rotatably holds the first gear wheel (5) between the first sheet (13) and the second sheet (14) through the first through-hole (20).
Date Recue/Date Received 2022-08-17
Date Recue/Date Received 2022-08-17
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102021124019.0A DE102021124019A1 (en) | 2021-09-16 | 2021-09-16 | adjusting device |
| DE102021124019.0 | 2021-09-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA3170729A1 true CA3170729A1 (en) | 2023-03-16 |
Family
ID=85284859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA3170729A Pending CA3170729A1 (en) | 2021-09-16 | 2022-08-17 | Adjustment device |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN115817295A (en) |
| CA (1) | CA3170729A1 (en) |
| DE (1) | DE102021124019A1 (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102015121204B4 (en) | 2015-12-06 | 2022-07-07 | Kokinetics Gmbh | seat fitting |
| DE102018106419B4 (en) | 2018-02-08 | 2023-07-13 | Kokinetics Gmbh | adjusting device |
-
2021
- 2021-09-16 DE DE102021124019.0A patent/DE102021124019A1/en active Pending
-
2022
- 2022-08-17 CA CA3170729A patent/CA3170729A1/en active Pending
- 2022-09-16 CN CN202211128450.XA patent/CN115817295A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| CN115817295A (en) | 2023-03-21 |
| DE102021124019A1 (en) | 2023-03-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request |
Effective date: 20230420 |
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| EEER | Examination request |
Effective date: 20230420 |