CN220785527U - Locking cam of seat angle adjuster, vehicle seat and vehicle - Google Patents

Abstract

The utility model discloses a locking cam of a seat angle adjuster, the seat angle adjuster, a vehicle seat and a vehicle, wherein the locking cam of the seat angle adjuster comprises the following components: the body portion, the peripheral wall of body portion is equipped with a plurality of cooperation regions, a plurality of cooperation regions are arranged along circumference, every cooperation region includes at least one first face of stopping, first face of stopping has the contact point, a plurality of the cooperation region the contact point with the distance of the geometric center of body portion is the same. Therefore, the distances between the contact points of the plurality of matching areas and the geometric center of the body are the same, so that the distances between the plurality of locking sliding blocks and the geometric center of the body are the same, the locking effect of the locking cam on the locking sliding blocks is improved, the structure of the locking cam can be simplified, and the practicability of the locking cam is improved.

Description

Locking cam of seat angle adjuster, vehicle seat and vehicle

Technical Field

The utility model relates to the field of vehicles, in particular to a locking cam of a seat angle adjuster, the seat angle adjuster, a vehicle seat and a vehicle.

Background

In the related art, a seat angle adjuster is generally provided with an unlocking cam, a locking cam and a locking slide block, wherein the unlocking cam is used for driving the locking cam to rotate so as to adjust the position relationship between the locking cam and the locking slide block, and then the seat angle adjuster is selectively unlocked or locked, and the overall performance of the seat angle adjuster can be directly influenced by the stability of the cooperation between the locking cam and the locking slide block.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, one purpose of the utility model is to provide a locking cam of a seat angle adjuster, which has good locking effect on a locking sliding block, simple structure and high practicability.

According to an embodiment of the utility model, a locking cam of a seat recliner includes: the body portion, the peripheral wall of body portion is equipped with a plurality of cooperation regions, a plurality of cooperation regions are arranged along circumference, every cooperation region includes at least one first face of stopping, first face of stopping has the contact point, a plurality of the cooperation region the contact point with the distance of the geometric center of body portion is the same.

According to the locking cam of the seat angle adjuster, the distances between the contact points of the plurality of matching areas and the geometric center of the body are the same, so that the distances between the plurality of locking sliding blocks and the geometric center of the body are the same, the locking effect of the locking cam on the locking sliding blocks is improved, the structure of the locking cam can be simplified, and the practicability of the locking cam is improved.

According to some embodiments of the utility model, the locking cam of the seat recliner includes a first abutment surface formed as an arcuate surface.

According to the locking cam of the seat angle adjuster, each matching area comprises a plurality of first abutting surfaces which are arranged at intervals along the circumferential direction, a first matching groove is arranged between two adjacent first abutting surfaces, each matching area further comprises a second matching groove, and the second matching groove of each matching area is positioned on one side of the plurality of first abutting surfaces in the circumferential direction of the body part.

According to some embodiments of the utility model, the locking cam of the seat recliner includes a second mating groove having a depth greater than a depth of the first mating groove.

According to some embodiments of the utility model, the locking cam of the seat recliner includes two first abutment surfaces, and the first abutment surface on the front side has a larger circumference than the first abutment surface on the rear side in the locking direction toward the locking cam.

According to some embodiments of the utility model, the locking cam of the seat recliner is provided with a stop boss protruding from the body in a direction parallel to the rotation axis of the body, and the stop boss is adapted to be connected to the return member to be driven to rotate in the locking direction.

The utility model also provides a seat angle adjuster.

According to an embodiment of the utility model, a seat recliner includes: a locking cam, which is a locking cam of a seat recliner according to any of the embodiments described above.

According to the seat angle adjuster provided by the embodiment of the utility model, the distances between the contact points of the plurality of matching areas and the geometric center of the body are the same, so that the distances between the plurality of locking sliding blocks and the geometric center of the body are the same, the locking effect of the locking cam on the locking sliding blocks is improved, the structure of the locking cam can be simplified, the practicability of the locking cam is improved, and the performance of the seat angle adjuster is improved.

A seat recliner according to some embodiments of the utility model includes: a fixed disk adapted to be connected to the seat cushion portion; the movable fluted disc is suitable for being connected with the backrest part of the seat, and a locking matching part is formed on the inner side of the movable fluted disc; the locking cam is rotatably arranged on the fixed disc and is provided with a plurality of connecting holes; the unlocking cam is provided with a plurality of connecting protrusions which are arranged at intervals, and the connecting protrusions are in plug-in fit with the connecting holes so that the unlocking cam and the locking cam synchronously rotate; the locking slide block can reciprocate between a locking position and an unlocking position, the unlocking cam is matched with the locking slide block to drive the locking slide block to reciprocate, and the locking slide block is matched with the locking matching part at the locking position and is blocked against the locking cam; in the unlocking position, the locking slide block is disengaged from the locking engagement portion, and the locking cam engages with the locking slide block to restrict displacement of the locking slide block.

According to some embodiments of the utility model, each of the connecting protrusions is defined by a portion of the unlocking cam that is bent toward the locking cam after being separated from the rest of the unlocking cam.

According to some embodiments of the utility model, the surface of the unlocking cam facing away from the locking cam is a first surface, and the connection part of the connection protrusion and the first surface is formed as a right angle; or the connecting protrusion and the first surface are connected through arc transition.

According to some embodiments of the utility model, the connecting protrusion is rectangular in cross section parallel to a surface of the unlocking cam facing the locking cam.

According to some embodiments of the utility model, the seat recliner further comprises a plurality of return members disposed on the fixed disk, each of the return members being adapted to abut against the locking cam to apply a force to the locking cam that causes the locking cam to have a tendency to rotate the unlocking cam to move the locking slide toward the locked position.

The utility model also provides a vehicle seat.

A vehicle seat according to an embodiment of the utility model includes: a seat cushion portion, a seat back portion, and a seat recliner according to any of the above embodiments, the seat recliner including a fixed plate and a movable toothed plate that cooperate to define a receiving cavity; the locking cam and the locking slide block are arranged in the accommodating cavity, the fixed disc is connected with the seat cushion part, and the movable fluted disc is connected with the seat back part.

According to the vehicle seat provided by the embodiment of the utility model, the distances between the contact points of the plurality of matching areas and the geometric center of the body are the same, so that the distances between the plurality of locking sliding blocks and the geometric center of the body are the same, the locking effect of the locking cam on the locking sliding blocks is improved, the structure of the locking cam can be simplified, the practicability of the locking cam is improved, the performance of the seat angle adjuster is improved, and the reliability of the vehicle seat is improved.

The vehicle seat according to some embodiments of the utility model further comprises a rotation handle extending axially through the seat recliner for driving the unlocking cam.

The embodiment of the utility model further provides a vehicle.

According to an embodiment of the present utility model, a vehicle includes: the vehicle seat according to any one of the embodiments described above; or a seat recliner according to any of the embodiments described above.

According to the vehicle provided by the embodiment of the utility model, the distances between the contact points of the plurality of matching areas and the geometric center of the body are the same, so that the distances between the plurality of locking sliding blocks and the geometric center of the body are the same, the locking effect of the locking cam on the locking sliding blocks is improved, the structure of the locking cam can be simplified, the practicability of the locking cam is improved, the performance of the seat angle adjuster is improved, the reliability of the vehicle seat is improved, and the overall competitiveness of the vehicle is improved.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is a schematic view of the installation of a seat recliner according to an embodiment of the present utility model;

FIG. 2 is an exploded view of a seat recliner according to an embodiment of the present utility model;

FIG. 3 is a cross-sectional view of a seat recliner according to an embodiment of the present utility model;

FIG. 4 is a schematic illustration of the engagement of a lock cam with a lock slide according to an embodiment of the utility model;

FIG. 5 is a front view of a locking cam according to an embodiment of the present utility model;

FIG. 6 is a front view of a lock slide according to an embodiment of the utility model;

FIG. 7 is a schematic view of an unlock cam and lock slide in a locked position according to an embodiment of the present utility model;

FIG. 8 is a schematic view of the installation of a lock cam and lock slide in a locked position according to an embodiment of the utility model;

FIG. 9 is a schematic view of the installation of the reset member and the locking cam in the locked position according to an embodiment of the present utility model;

FIG. 10 is a schematic view of an unlock cam and lock slide installation in an unlock position according to an embodiment of the present utility model;

FIG. 11 is a schematic view of the installation of a locking cam and locking slide in an unlocked position according to an embodiment of the present utility model;

FIG. 12 is a schematic view of the installation of a reset member and a locking cam in an unlocked position according to an embodiment of the present utility model;

FIG. 13 is a schematic view of the installation of a fixed disk and a reset device according to an embodiment of the present utility model;

FIG. 14 is a front view of an unlocking cam according to an embodiment of the present utility model;

fig. 15 is a cross-sectional view of an unlocking cam according to an embodiment of the present utility model.

Reference numerals:

the seat recliner 100, the seat cushion portion 200, the seat back portion 300, the rotation handle 400,

a fixed disk 1, a containing groove 11, a movable fluted disk 2, a locking matching part 21,

the locking cam 3, the body portion 31, the fitting area 32, the first fitting groove 321, the first abutting surface 322, the second fitting groove 323, the connecting hole 33, the abutting boss 34, the unlocking cam 4, the connecting protrusion 41, the circular arc 411, the unlocking groove 42,

the locking slide block 5, the unlocking protrusion 51, the stopping protrusion 52, the limiting tooth 53, the reset piece 6 and the combining sleeve 7.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

Next, the lock cam 3 of the seat recliner according to the embodiment of the present utility model is described with reference to the accompanying drawings.

As shown in fig. 1 to 15, a lock cam 3 of a seat recliner according to an embodiment of the present utility model includes: the body portion 31, the outer peripheral wall of the body portion 31 is provided with a plurality of cooperation areas 32, and a plurality of cooperation areas 32 are arranged along circumference, and each cooperation area 32 includes at least one first abutment face 322, and first abutment face 322 has the contact point, and the distance of the contact point of a plurality of cooperation areas 32 and the geometric center of body portion 31 is the same.

Therefore, the locking effect of the locking cam 3 on the locking sliding block 5 is improved, the structure of the locking cam 3 can be simplified, and the practicability of the locking cam 3 is improved.

For example, referring to fig. 1 to 8, the seat recliner 100 includes a lock cam 3 and a lock slider 5, the lock cam 3 includes a body portion 31, and a plurality of fitting areas 32 are provided on an outer peripheral wall of the body portion 31, the plurality of fitting areas 32 being sequentially arranged in a circumferential direction of the lock cam 3. The number of the locking slide blocks 5 is plural, the locking slide blocks 5 are in one-to-one correspondence with and matched with the matching areas 32, each matching area 32 comprises at least one first abutting surface 322, the locking slide blocks 5 can be abutted against the first abutting surfaces 322 of the corresponding matching areas 32 when in a locking position, the first abutting surfaces 341 are provided with contact points, and the contact points are abutting points of the locking cam 3 in contact with the locking slide blocks 5 when in a locking state.

Wherein, the distance between the contact points of the plurality of matching areas 322 and the geometric center of the body portion 31 may be the same, i.e. the distance between the plurality of locking sliders 5 and the geometric center of the body portion 31 is the same, so that the locking cam 3 may effectively lock the plurality of locking sliders 5, and the structure of the locking cam 3 may be simplified, which is beneficial to reducing the processing difficulty of the locking cam 3. Thus, the practicality of the seat recliner 100 can be improved.

According to the locking cam 3 of the seat angle adjuster, the distances between the contact points of the plurality of matching areas 322 and the geometric center of the body part 31 are the same, so that the distances between the plurality of locking sliding blocks 5 and the geometric center of the body part 31 are the same, the locking effect of the locking cam 3 on the locking sliding blocks 5 is improved, the structure of the locking cam 3 can be simplified, and the practicability of the locking cam 3 is improved.

In some embodiments of the present utility model, as shown in fig. 5, the first stop surface 322 may be provided to be formed as an arc surface, so that friction between the lock cam 3 and the lock slider 5 may be reduced when the lock cam 3 rotates to slide the lock slider 5 along the first stop surface 322. Thereby, the operation feeling of the lock cam 3 can be improved, and the service lives of the lock cam 3 and the lock slider 5 can be advantageously increased.

In some embodiments of the present utility model, each of the mating regions 32 includes a plurality of first abutment surfaces 322 disposed at intervals in a circumferential direction, a first mating groove 321 is disposed between two adjacent first abutment surfaces 322, each of the mating regions 32 further includes a second mating groove 323, and the second mating groove 323 of each of the mating regions 32 is located at one side of the plurality of first abutment surfaces 322 in the circumferential direction of the body portion 31.

For example, referring to fig. 5, 6 and 11, each of the fitting regions 32 may be provided to include a plurality of first abutment surfaces 322, the plurality of first abutment surfaces 322 being spaced apart in the circumferential direction of the lock cam 3, a first fitting groove 321 being provided between any adjacent two of the first abutment surfaces 322 of the same fitting region 32, each of the fitting regions 32 further including a second fitting groove 323, the second fitting groove 323 being located on one side of the plurality of first abutment surfaces 322 in the locking direction (i.e., counterclockwise direction in fig. 4) in the circumferential direction of the body portion 31. Meanwhile, a plurality of stopping protrusions 52 may be disposed on the inner side wall of the locking slider 5, the stopping protrusions 52 are distributed at intervals, and the stopping protrusions 52 are in one-to-one correspondence with the first stopping surfaces 322. The plurality of stopping protrusions 52 are stopped at the contact points of the corresponding first stopping surfaces 322 in the locking position, and the plurality of stopping protrusions 52 can extend into the first matching groove 321 and the second matching groove 323 in the unlocking position.

It can be appreciated that by providing the locking slider 5 to be in locking engagement with the plurality of first locking surfaces 322 of the locking cam 3 by the plurality of locking protrusions 52, the locking stability between the locking slider 5 and the locking cam 3 can be improved, and the practicality of the locking cam 3 can be improved.

In some embodiments of the present utility model, as shown in fig. 5, the depth of the second fitting groove 323 is greater than the depth of the first fitting groove 321. Through the above arrangement, when the plurality of first abutment surfaces 341 extend into the first matching groove 321 and the second matching groove 323 respectively, the first abutment surfaces 341 can keep a gap with the bottom wall of the second matching groove 343, so that friction force between the locking cam 3 and the locking slider 5 can be reduced, and the operation feel of the locking cam 3 can be improved.

In some embodiments of the present utility model, as shown in fig. 5, each of the fitting regions 32 includes two first abutment surfaces 322, the two first abutment surfaces 322 being arranged at intervals in the circumferential direction of the lock cam 3, the circumference of the first abutment surface 322 on the front side being larger than the circumference of the first abutment surface 322 on the rear side in the lock direction toward the lock cam 3. Through the arrangement, foolproof design can be realized, the installation difficulty of the locking cam 3 is reduced, and the practicability of the locking cam 3 is improved.

In some embodiments of the utility model, at least one end face of the body portion 31 is provided with a stop boss 34 protruding from the body portion 31 in a direction parallel to the rotational axis of the body portion 31, the stop boss 34 being adapted to be connected with a reset member to be driven to rotate toward the locking direction.

For example, referring to fig. 5 and 9, in a direction parallel to the rotation axis of the body portion 31, at least one end surface of the body portion 31 is provided with a stopper boss 34, the stopper boss 34 protrudes from the end surface of the body portion 31, the seat recliner 100 is provided with a return piece 6, the return piece 6 may be configured as a return spring, and one end of the return piece 6 is adapted to be connected to an outer peripheral wall of the stopper boss 34 to apply a force to the stopper boss 34 so that the return piece 6 can drive the lock cam 3 to rotate toward the lock direction by the stopper boss 34. Through the arrangement, the connection stability between the reset piece 6 and the locking cam 3 is improved, acting force can be stabilized, and the operation handfeel is improved.

Further, as shown in fig. 9, a plurality of the abutment bosses 34 may be provided, the plurality of abutment bosses 34 are arranged at intervals along the circumferential direction of the body portion 31, the restoring pieces 6 are provided correspondingly in plurality, and the plurality of abutment bosses 34 are in one-to-one correspondence and connected with the plurality of restoring pieces 6. Through the arrangement, a plurality of reset pieces 6 can apply acting force to the locking cam 3 together, so that the performance of the seat angle adjuster is improved.

In some embodiments of the present utility model, as shown in fig. 9, the abutment boss 34 may be configured in a cylindrical shape, so that the restoring member 6 may be always kept in abutment with the outer circumferential wall of the abutment boss 34 during the rotation of the locking cam 3, improving the contact stability between the restoring member 6 and the locking cam 3, stabilizing the force, and improving the operational feeling.

The utility model also proposes a seat recliner 100.

As shown in fig. 1 to 3, a seat recliner 100 according to an embodiment of the present utility model includes: locking cam 3 the locking cam 3 is a locking cam 3 of a seat recliner according to any of the embodiments described above.

According to the seat recliner 100 of the embodiment of the utility model, the distances between the contact points of the plurality of matching areas 322 and the geometric center of the body 31 are the same, so that the distances between the plurality of locking sliders 5 and the geometric center of the body 31 are the same, the locking effect of the locking cam 3 on the locking sliders 5 is improved, the structure of the locking cam 3 can be simplified, the practicability of the locking cam 3 is improved, and the performance of the seat recliner 100 is improved.

In some embodiments of the present utility model, the locking cam 3 is provided with a plurality of connection holes 33, and the seat recliner 100 further includes: the fixed disk 1, the movable fluted disc 2, the unlocking cam 4 and the locking slide block 5, wherein the fixed disk 1 is suitable for being connected with the seat cushion part 200; the movable fluted disc 2 is suitable for being connected with the seat backrest part 300, and a locking matching part 21 is formed on the inner side of the movable fluted disc 2; the unlocking cam 4 is provided with a plurality of connecting protrusions 41 which are arranged at intervals, and the plurality of connecting protrusions 41 are in plug-in fit with the plurality of connecting holes 33 so as to enable the unlocking cam 4 and the locking cam 3 to synchronously rotate; the locking slide block 5 can reciprocate between a locking position and an unlocking position, the unlocking cam 4 is matched with the locking slide block 5 to drive the locking slide block 5 to reciprocate, and the locking slide block 5 is matched with the locking matching part 21 and is abutted against the locking cam 3 at the locking position; in the unlock position, the lock slider 5 is disengaged from the lock engagement portion 21, and the lock cam 3 is engaged with the lock slider 5 to restrict the displacement of the lock slider 5.

For example, referring to fig. 1-6, the seat recliner 100 includes a fixed plate 1, a movable toothed plate 2, and a coupling sleeve 7, the fixed plate 1 being adapted to be coupled to the seat cushion portion 200 to couple the seat recliner 100 to the seat cushion portion 200, and the movable toothed plate 2 being adapted to be coupled to the seat back portion 300 to couple the seat recliner 100 to the seat back portion 300. The fixed disc 1 and the movable fluted disc 2 are rotatably matched and sealed through the combining sleeve 7 so as to define an installation space between the fixed disc 1 and the movable fluted disc 2, wherein the installation space is used for assembling other parts of the seat angle adjuster 100, and the functions of dust prevention, internal grease overflow prevention, external electrophoretic liquid invasion and the like are achieved.

The seat angle adjuster 100 further includes an unlocking cam 4 and a locking slider 5, the locking cam 3, the unlocking cam 4 and the locking slider 5 are all assembled in the installation space, the locking cam 3 is rotatably disposed on the fixed disk 1, a plurality of connecting holes 33 are disposed on the side wall of the locking cam 3 facing away from the fixed disk 1, and the plurality of connecting holes 33 are arranged at intervals along the circumference of the locking cam 3. The unlocking cam 4 is installed on one side of the locking cam 3 deviating from the fixed disk 1, the side wall of the unlocking cam 4 facing the locking cam 3 is provided with a plurality of connecting protrusions 41, the connecting protrusions 41 are arranged at intervals along the circumferential direction of the unlocking cam 4, the connecting protrusions 41 and the connecting holes 33 are arranged in a one-to-one correspondence mode, the connecting protrusions 41 are used for being in plug-in fit with the connecting holes 33, circumferential limiting of the unlocking cam 4 and the locking cam 3 can be achieved, and the unlocking cam 4 and the locking cam 3 can synchronously rotate.

Wherein the locking slider 5 is arranged radially outside the locking cam 3, the locking slider 5 is configured to be movable in the radial direction of the locking cam 3, the side wall of the locking slider 5 facing the unlocking cam 4 is provided with an unlocking protrusion 51, the unlocking cam 4 is provided with an unlocking groove 42 arranged to extend in the circumferential direction, the unlocking protrusion 51 is movably inserted into the unlocking groove 42, and when the unlocking cam 4 rotates, the unlocking cam 4 can drive the locking slider 5 to reciprocate in the radial direction through the unlocking protrusion 51, so that the locking slider 5 can reciprocate between the locking position and the unlocking position. The unlocking cam 4 can also drive the locking cam 3 to synchronously rotate so as to adjust the matching relationship between the locking cam 3 and the locking slide block 5.

Meanwhile, a locking engagement portion 21 may be formed at an inner side of the movable fluted disc 2, the locking engagement portion 21 being constructed in a toothed structure sequentially arranged along a circumferential direction of the movable fluted disc 2, and a limiting tooth 53 is formed at an outer side of the locking slider 5, the limiting tooth 53 being for selectively engaging with the locking engagement portion 21.

Specifically, as shown in fig. 7 to 9, when the unlocking cam 4 drives the locking slider 5 to move outward to the locking position, the limit teeth 53 of the locking slider 5 may be engaged with the locking engagement portions 21, and the locking cam 3 may be in locking engagement with the locking slider 5, so that the locking slider 5 may limit the movable fluted disc 2 to achieve circumferential limitation between the fixed fluted disc 1 and the movable fluted disc 2, thereby achieving locking between the seat cushion portion 200 and the seatback portion 300; as shown in fig. 10 to 12, when the unlocking cam 4 drives the lock slider 5 to move inward to the unlocking position, the stopper teeth 53 of the lock slider 5 are disengaged from the lock engagement portions 21, and the lock cam 3 may engage with the lock slider 5 to restrict outward displacement of the lock slider 5, the fixed disk 1 and the movable fluted disc 2 may be relatively rotated, and thus the angle between the seat cushion portion 200 and the seatback portion 300 may be relatively adjusted.

Through the arrangement, the matching stability between the unlocking cam 4 and the locking cam 3 can be improved, the working stability of the seat angle adjuster 100 can be improved, the seat angle adjuster 100 is simple in structure, and processing and assembly are facilitated.

In the actual arrangement, the abutment boss 34 and the connection hole 33 may be provided to coincide in the thickness direction of the lock cam 3, so that the structural stability of the lock cam 3 may be increased, and the mating stability between the lock cam 3 and the unlocking cam 4 may be improved. Reset stability of the lock cam 3.

In some embodiments of the present utility model, referring to fig. 4 to 5, each of the coupling protrusions 41 is defined by bending toward the locking cam 3 after a portion of the unlocking cam 4 is separated from the rest. Through the arrangement, the overall weight of the unlocking cam 4 can be reduced, the light-weight design is realized, the processing difficulty of the unlocking cam 4 can be reduced, and the processing cost is reduced.

In some embodiments of the present utility model, as shown in fig. 14 to 15, the surface of the unlocking cam 4 facing away from the locking cam 3 may be set as the first surface. Wherein the connection of the connection protrusion 41 with the first surface may be provided to form a right angle; alternatively, the connection protrusion 41 and the first surface may be provided to be transitionally connected by the circular arc 411, which is not limited in this application. Through the above arrangement, the dimensional accuracy of the connecting protrusion 41 is easy to control, the fit clearance between the connecting protrusion 41 and the connecting hole 33 can be reduced, the synchronism of the unlocking cam 4 and the locking cam 3 in rotation is improved, and the unlocking cam 4 can be machined by adopting common stamping forming, so that the production cost is reduced.

In some embodiments of the present utility model, as shown in fig. 14, the cross section of the connecting projection 41 is formed rectangular in a cross section parallel to the surface of the unlocking cam 4 facing the locking cam 3. Through the arrangement, the structural complexity of the connecting protrusion 41 can be reduced, the processing cost can be saved, the limiting effect of the connecting protrusion 41 on the locking cam 3 can be improved, and the reliability of the seat angle adjuster 100 can be improved.

In some embodiments of the present utility model, the seat recliner 100 of the present utility model further includes a plurality of return members 6, where the plurality of return members 6 are provided on the fixed disk 1, and each return member 6 is adapted to abut against the locking cam 3 to apply a force to the locking cam 3, where the force causes the locking cam 3 to have a tendency to rotate the unlocking cam 4 to move the locking slide 5 toward the locked position.

For example, as shown in fig. 9, 12 and 13, the seat recliner 100 further includes a plurality of restoring members 6, where the restoring members 6 are respectively disposed on the fixed disk 1, the restoring members 6 are spaced apart along the circumference of the fixed disk 1, and the restoring members 6 are respectively abutted against the locking cam 3 and are used to apply a force to the locking cam 3 in the circumferential direction together, and the force is used to drive the locking cam 3 to rotate the unlocking cam 4, so that the locking slider 5 has a tendency to move inward to the locking position, and thus the locking slider 5 can be restored to the locking position.

Specifically, when the user applies an external force to the unlocking cam 4, the unlocking cam 4 may drive the lock slider 5 to move inward to the unlock position, the lock slider 5 is disengaged from the lock engagement portion 21, the lock cam 3 may be engaged with the lock slider 5 to restrict the displacement of the lock slider 5, the angle between the seat cushion portion 200 and the seatback portion 300 may be relatively adjustable, and the return 6 may apply a force to the unlocking cam 4; at this time, if the user removes the external force, the reset member 6 may drive the locking cam 3 to drive the unlocking cam 4 to reversely rotate, the unlocking cam 4 may drive the locking slider 5 to outwardly reset to the locking position, the outer side of the locking slider 5 may be engaged with the locking engagement portion 21, and the locking cam 3 may be engaged with the locking slider 5 in a locking manner, so that the locking slider 5 may limit the movable fluted disc 2 to achieve locking between the seat cushion portion 200 and the seat back portion 300.

It can be appreciated that by providing a plurality of return members 6, the plurality of return members 6 can apply force to the locking cam 3 together, which improves the return stability of the locking cam 3, and can reduce the size of a single return member 6, which is beneficial to layout and improves the reliability of the seat recliner 100.

In some embodiments of the present utility model, a plurality of receiving grooves 11 are provided in the fixed tray 1, each receiving groove 11 being for receiving the reset member 6. For example, referring to fig. 13, there may be provided a plurality of accommodating grooves 11 at the side wall of the fixed tray 1 facing the mounting chamber, the plurality of accommodating grooves 11 being arranged at intervals in the circumferential direction of the fixed tray 1, and the reset member 6 being mounted in each of the accommodating grooves 11. Through the arrangement, the occupation of the reset piece 6 to the installation space can be reduced, the space utilization rate of the installation space is improved, and the reduction of the overall size of the seat angle adjuster 100 is facilitated.

The utility model also provides a vehicle seat.

As shown in fig. 1, a vehicle seat body according to an embodiment of the present utility model includes: the seat cushion portion 200, the seat back portion 300, and the seat recliner 100 according to any of the above embodiments, the seat recliner 100 including a fixed disc 1 and a movable toothed disc 2, the fixed disc 1 and the movable toothed disc 2 cooperatively defining a receiving chamber; the locking cam 3 and the locking slider 5 are provided in the accommodating chamber, the fixed disk 1 is connected to the seat cushion portion 200, and the movable fluted disk 2 is connected to the seatback portion 300.

According to the vehicle seat provided by the embodiment of the utility model, the distances between the contact points of the plurality of matching areas 322 and the geometric center of the body part 31 are the same, so that the distances between the plurality of locking sliding blocks 5 and the geometric center of the body part 31 are the same, the locking effect of the locking cam 3 on the locking sliding blocks 5 is improved, the structure of the locking cam 3 can be simplified, the practicability of the locking cam 3 is improved, the performance of the seat angle adjuster 100 is improved, and the reliability of the vehicle seat is improved.

In some embodiments of the present utility model, the vehicle seat of the present embodiment further includes a rotation handle 400, and the rotation handle 400 penetrates the seat recliner 100 in an axial direction and is used to drive the unlocking cam 4 to rotate. For example, referring to fig. 1, the rotation handle 400 includes a grip portion and a socket portion connected to each other, the grip portion is configured to be easy to grip, such as a cylindrical shape or an elliptic cylindrical shape, the socket portion is configured to be a polygonal cylindrical shape, such as a rectangular shape, and the socket portion may axially penetrate the seat recliner 100 and cooperate with the unlocking cam 4, so that a user may rotate the unlocking cam 4 through the grip portion to drive the locking slider 5 to move to the unlocking position. Of course, it is also possible to provide a grip portion connected to the drive member so that the seat recliner 100 can be driven by electric power. Therefore, the operation hand feeling of the user can be improved, and the satisfaction degree of the user can be improved.

The utility model further provides a vehicle.

According to an embodiment of the present utility model, a vehicle includes: the vehicle seat according to any one of the embodiments described above; or a seat recliner 100 according to any of the embodiments described above.

According to the vehicle of the embodiment of the utility model, the distances between the contact points of the plurality of matching areas 322 and the geometric center of the body part 31 are the same, so that the distances between the plurality of locking sliding blocks 5 and the geometric center of the body part 31 are the same, the locking effect of the locking cam 3 on the locking sliding blocks 5 is improved, the structure of the locking cam 3 can be simplified, the practicability of the locking cam 3 is improved, the performance of the seat angle adjuster 100 is improved, the reliability of the vehicle seat is improved, and the overall competitiveness of the vehicle is improved.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

In the description of the utility model, a "first feature" or "second feature" may include one or more of such features.

In the description of the present utility model, "plurality" means two or more.

In the description of the utility model, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other by another feature therebetween.

In the description of the utility model, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (15)

1. A locking cam (3) of a seat recliner, characterized by comprising:

the body portion (31), the periphery wall of body portion (31) is equipped with a plurality of cooperation district (32), a plurality of cooperation district (32) are arranged along circumference, every cooperation district (32) include at least one first face (322) that stops, first face (322) that stops has the contact point, a plurality of the contact point of cooperation district (32) with the distance of the geometric center of body portion (31) is the same.

2. The locking cam (3) of a seat recliner according to claim 1, characterized in that the first abutment surface (322) is formed as an arcuate surface.

3. The locking cam (3) of a seat recliner according to claim 1, characterized in that each of said mating areas (32) comprises a plurality of said first abutment surfaces (322) circumferentially spaced apart, a first mating groove (321) being provided between two adjacent said first abutment surfaces (322), each of said mating areas (32) further comprising a second mating groove (323), said second mating groove (323) of each of said mating areas (32) being located on one side of a plurality of said first abutment surfaces (322) in the circumferential direction of said body portion (31).

4. A locking cam (3) of a seat recliner according to claim 3, characterized in that the depth of the second mating groove (323) is greater than the depth of the first mating groove (321).

5. The locking cam (3) of a seat recliner according to claim 1, characterized in that each of the mating areas (32) comprises two of the first abutment surfaces (322), the perimeter of the first abutment surface (322) on the front side being greater than the perimeter of the first abutment surface (322) on the rear side in the locking direction towards the locking cam (3).

6. Locking cam (3) of a seat recliner according to any of claims 1-5, characterized in that at least one end face of the body part (31) is provided with a stop boss (34) protruding from the body part (31) in a direction parallel to the rotational axis of the body part (31), which stop boss (34) is adapted to be connected with a return element (6) to be driven in rotation towards a locking direction.

7. A seat recliner (100) characterized by comprising: a locking cam (3), the locking cam (3) being a locking cam (3) of a seat recliner according to any of claims 1-6.

8. The seat recliner (100) according to claim 7, characterized in that the locking cam (3) is provided with a plurality of connecting holes (33), the seat recliner (100) further comprising:

-a fixed disc (1), said fixed disc (1) being adapted to be connected to a seat cushion portion (200);

a movable fluted disc (2), wherein the movable fluted disc (2) is suitable for being connected with a seat backrest part (300), and a locking matching part (21) is formed on the inner side of the movable fluted disc (2);

the unlocking cam (4) is provided with a plurality of connecting protrusions (41) which are arranged at intervals, and the connecting protrusions (41) are in plug-in fit with the connecting holes (33) so that the unlocking cam (4) and the locking cam (3) synchronously rotate;

the locking slide block (5) can reciprocate between a locking position and an unlocking position, the unlocking cam (4) is matched with the locking slide block (5) to drive the locking slide block (5) to reciprocate, and the locking slide block (5) is matched with the locking matching part (21) in the locking position and the locking slide block (5) is propped against the locking cam (3);

in the unlocking position, the locking slide block (5) is disengaged from the locking engagement portion (21), and the locking cam (3) is engaged with the locking slide block (5) to restrict displacement of the locking slide block (5).

9. The seat recliner (100) according to claim 8, characterized in that each of said connecting projections (41) is defined by a portion of said unlocking cam (4) which is folded towards the locking cam (3) after being separated from the rest.

10. The seat recliner (100) according to claim 9, characterized in that the surface of the unlocking cam (4) facing away from the locking cam (3) is a first surface, the connection of the connecting projection (41) with the first surface being formed as a right angle; or (b)

The connecting protrusion (41) and the first surface are in transitional connection through an arc (411).

11. The seat recliner (100) according to claim 8, characterized in that the cross section of the connecting projection (41) is rectangular in a cross section parallel to the surface of the unlocking cam (4) facing the locking cam (3).

12. The seat recliner (100) according to claim 8 further comprising a plurality of return members (6), said plurality of return members (6) being provided to said fixed disk (1), each said return member (6) being adapted to be stopped against said locking cam (3) to exert a force on said locking cam (3) which force causes said locking cam (3) to have a tendency to rotate said unlocking cam (4) to cause said locking slider (5) to move towards said locked position.

13. A vehicle seat, characterized by comprising: a seat cushion portion (200), a seat back portion (300) and a seat recliner (100) according to any of claims 8-12, the seat recliner (100) comprising a fixed disc (1) and a movable toothed disc (2), the fixed disc (1) and the movable toothed disc (2) cooperating to define a receiving cavity;

the locking cam (3) and the locking sliding block (5) are arranged in the accommodating cavity, the fixed disc (1) is connected with the seat cushion part (200), and the movable fluted disc (2) is connected with the seat back part (300).

14. The vehicle seat according to claim 13, further comprising a rotation handle (400), the rotation handle (400) extending axially through the seat recliner (100) and being adapted to drive the unlocking cam (4) in rotation.

15. A vehicle, characterized by comprising: the vehicle seat according to claim 13 or 14; or a seat recliner (100) according to any of claims 8-12.