CN219838469U - Seat lock, vehicle seat and vehicle - Google Patents

Abstract

The utility model provides a seat lock, a vehicle seat and a vehicle, wherein the seat lock comprises a lock shell, a lock hook assembly, a locking roller and a locking reset torsion spring, and the lock shell is provided with an inner cavity; the latch hook assembly is rotatably arranged in the inner cavity around the first axis; the hook stopping component is rotatably arranged in the inner cavity around a second axis, and the second axis is parallel to the first axis; the locking roller is movably arranged between the locking hook component and the stopping hook component; the locking reset torsion spring is arranged in a dislocation mode with the first axis and the second axis respectively, and is connected to the locking roller and the lock shell so as to apply thrust to the locking roller. The utility model avoids the locking reset torsion spring from occupying the axial space of the lock hook component and the stop hook component, thereby being beneficial to ensuring that the whole seat lock has more compact structure and smaller size along the axial direction.

Description

Seat lock, vehicle seat and vehicle

Technical Field

The present utility model relates generally to the technical field of vehicle seat fittings, and more particularly to a seat lock, a seat and a vehicle.

Background

The seats of a vehicle are typically connected to the body by a seat lock. Related art seat locks generally include a lock housing. The inner cavity of the lock shell is provided with a lock hook component and a stop hook component which can be in sliding contact with each other, and the lock hook and the stop hook are both provided with reset torsion springs. In addition, the inner cavity of the lock shell is also provided with a locking roller for eliminating a gap between the lock hook component and the stop hook component. The locking roller is provided with a locking reset torsion spring. Because the locking reset torsion spring and the hook stopping component are coaxially arranged, the axial space is occupied, and the volume of the seat lock is increased.

Disclosure of Invention

In the summary, a series of concepts in a simplified form are introduced, which will be further described in detail in the detailed description. The summary of the utility model is not intended to define the key features and essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.

To at least partially solve the above-described problems, a first aspect of the present utility model provides a seat lock comprising:

a lock housing having an interior cavity;

the lock hook assembly is rotatably arranged in the inner cavity around a first axis;

a catch assembly rotatably disposed about a second axis in the lumen, the second axis being parallel to the first axis;

a locking roller movably disposed between the shackle assembly and the stop hook assembly; and

the locking reset torsion spring is respectively arranged with the first axis and the second axis in a dislocation way, and is connected to the locking roller and the lock shell so as to apply thrust to the locking roller.

According to the seat lock disclosed by the utility model, the locking reset torsion spring is arranged in a dislocation manner with the first axis and the second axis respectively, so that the locking reset torsion spring is prevented from occupying the axial space of the lock hook assembly and the lock hook assembly, and the overall structure of the seat lock along the axial direction is more compact and smaller in size.

Optionally, the catch assembly includes a first stop, the locking roller being movably disposed relative to the lock housing about the second axis, the locking roller being configured to move toward the first stop when acted upon by the urging force of the locking return torsion spring.

Optionally, the locking reset torsion spring is further from the second axis than the locking roller.

Optionally, the seat lock further includes a stop hook stopper and a stop hook reset torsion spring, the stop hook stopper and the stop hook component are sequentially arranged in the inner cavity along the second axis, the stop hook stopper and the stop hook component are all abutted to the lock shell along a direction parallel to the second axis, the stop hook reset torsion spring and the stop hook component are coaxially arranged, and the stop hook reset torsion spring is connected to the lock shell and the stop hook component so as to apply an elastic acting force to the stop hook component along the first rotation direction towards the lock hook component.

Optionally, the latch hook assembly is configured to rotate between a locked position and an unlocked position, the seat lock further includes a latch hook limiter and a latch hook reset torsion spring, the latch hook limiter and the latch hook assembly are sequentially disposed in the inner cavity along the first axis, the latch hook limiter and the latch hook assembly are both abutted to the lock shell along a direction parallel to the first axis, the latch hook reset torsion spring and the latch hook assembly are coaxially disposed, and the latch hook reset torsion spring is connected to the lock shell and the latch hook assembly so as to apply an elastic force to the latch hook assembly along a second rotation direction towards the unlocked position, and the first rotation direction is opposite to the second rotation direction.

Optionally, the lock case includes:

the fixing seat is provided with a first surface; and

a cover plate connected to the fixing base, wherein the inner cavity is formed between the cover plate and the fixing base, the cover plate is provided with a second surface,

the first surface and the second surface are spaced apart,

the shackle assembly and the stop assembly are disposed proximate one of the first surface and the second surface, and the shackle limiter and the stop limiter are disposed proximate the other of the first surface and the second surface.

Optionally, the latch hook assembly and the latch hook stopping assembly are disposed near the first surface, and the latch hook limiter and the latch hook stopping limiter are disposed near the second surface;

the fixing base also comprises:

a first limiting boss protruding from the first surface along the first axis, the first limiting boss abutting the latch hook assembly; and

the second limiting boss protrudes from the second surface along the second axis, and the second limiting boss is abutted to the hook stopping component.

Optionally, the lock case further includes a limit post extending in a direction parallel to the first axis, one end of the limit post is connected to one of the first surface and the second surface, and the other end of the limit post abuts against the other of the first surface and the second surface to define a distance between the first surface and the second surface.

Optionally, the fixing seat is provided with a first guide groove, the cover plate is provided with a second guide groove, the first guide groove and the second guide groove are arranged around the second axis in a circumferential extending way, the projections of the first guide groove and the second guide groove in a plane perpendicular to the first axis coincide, the projections of the first guide groove in the plane where the first axis and the second axis are located are at least partially positioned between the first axis and the second axis,

the two ends of the locking roller are respectively inserted into the first guide groove and the second guide groove.

Optionally, the seat lock further comprises:

an unlocking lever connected to the hook stopping assembly, the unlocking lever being operable to rotate the hook stopping assembly in a direction opposite to the first rotation direction;

a latch for connection to a body of a vehicle, the latch configured to rotate the shackle assembly in a direction opposite the second rotational direction when abutting the shackle assembly.

Optionally, the hook stopping component is provided with a through hole,

the seat lock further comprises:

the buckle, the draw-in groove has been seted up to the one end of buckle, draw-in groove joint the release lever, the other end of buckle is constructed with claw portion and non return portion, the other end of buckle is passed through the through-hole is penetrated the end of locking the hook assembly, claw portion and non return portion are followed the hole depth direction of through-hole is located the both sides of through-hole and butt end the end of locking the hook assembly.

Optionally, the latch hook assembly includes a latch hook body and a latch hook coating layer, the latch hook coating layer is coated on the outer side of the latch hook body, and a part of the latch hook coating layer for contacting the latch shell and the latch hook stopping assembly is provided with a sound damping hole; and/or

The lock shell further comprises a silencing piece, and the silencing piece is coated on the outer surface of the cover plate.

A second aspect of the utility model provides a vehicle seat comprising:

a seat body;

a seat back pivotally connected to the seat body in an extended position and a folded position; and

the seat lock described above, the seat lock being connected to the seat back.

According to the vehicle seat disclosed by the second aspect of the utility model, the space occupation can be reduced by applying the seat lock, so that the structural layout of the vehicle seat is more reasonable and compact.

A third aspect of the utility model provides a vehicle comprising:

a vehicle body; and

in the vehicle seat described above, the seat body is connected to the vehicle body, the seat lock includes a lock hook assembly and a lock plunger, the lock plunger is connected to the vehicle body,

the latch hook assembly is hooked to the latch when the seat back is in the deployed position; the shackle assembly disengages the lock bolt when the seat back is in the folded position.

According to the vehicle, the compactness of the mounting structure of the vehicle seat and the use experience of the vehicle seat are improved by applying the vehicle seat.

Drawings

The following drawings of embodiments of the present utility model are included as part of the utility model. Embodiments of the present utility model and their description are shown in the drawings to explain the principles of the utility model. In the drawings of which there are shown,

FIG. 1 is an exploded perspective view of a seat lock according to a preferred embodiment of the present utility model;

FIG. 2 is a schematic view of the seat lock of FIG. 1 after removal of the anchor block, wherein the shackle assembly is in the locked position;

FIG. 3 is another schematic view of the seat lock of FIG. 1 after removal of the mounting base, with the shackle assembly in the unlocked position;

FIG. 4 is a further schematic view of the seat lock of FIG. 1 after removal of the anchor block, with the shackle assembly in a position between the locked and unlocked positions;

FIG. 5 is a perspective view of the shackle body shown in FIG. 1;

FIG. 6 is a perspective view of the shackle cladding shown in FIG. 1;

FIG. 7 is a perspective view of the holder shown in FIG. 1;

FIG. 8 is a perspective view of the clasp shown in FIG. 1; and

fig. 9 is a perspective view of the cover plate shown in fig. 1.

Reference numerals illustrate:

100: lock case 101: fixing seat

101a: first surface 101b: first limit boss

101c: second limit boss 101d: spacing post

101e: first guide groove 102: cover plate

102a: second surface 102b: second guide groove

102c: silencing member 110: latch hook assembly

111: latch hook body 111b: latch hook base

111c: the first hook portion 111d: second latch hook part

111e: latch hook groove 111f: corner portion

112: latch hook coating 112a: silencing hole

113: latch hook return torsion spring 115: lock hook limiting piece

120: the hook stop assembly 120a: through hole

120c: the hook-stopping base 120d: first stop part

120e: the second stopper 121: stop hook reset torsion spring

122: the hook stop 140: locking reset torsion spring

130: locking roller 150: unlocking rod

151: clasp 151a: clamping groove

151b: the click portion 151c: check part

160: the lock bolt 170: first hollow rivet

171: second blind rivet 172: third rivet

AX1: the first axis AX2: a second axis

R1: first rotation direction R2: second direction of rotation

Detailed Description

In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present utility model. It will be apparent, however, to one skilled in the art that embodiments of the utility model may be practiced without one or more of these details. In other instances, well-known features have not been described in detail in order to avoid obscuring the embodiments of the utility model.

In the following description, a detailed structure will be presented for a thorough understanding of embodiments of the present utility model. It will be apparent that embodiments of the utility model may be practiced without limitation to the specific details that are set forth by those skilled in the art.

It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model, as the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," and/or "including," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

Ordinal numbers such as "first" and "second" cited in the present utility model are merely identifiers and do not have any other meaning, such as a particular order or the like. Also, for example, the term "first component" does not itself connote the presence of "second component" and the term "second component" does not itself connote the presence of "first component". It is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer" and the like are used herein for illustrative purposes only and are not limiting.

Hereinafter, specific embodiments of the present utility model will be described in more detail with reference to the accompanying drawings, which illustrate representative embodiments of the present utility model and not limit the present utility model.

The utility model provides a seat lock. The seat lock may be applied to a vehicle seat (not shown) capable of having a folding back function. The vehicle seat may be a rear seat of a passenger car. The rear seat herein generally refers to a seat that is adjacent to the trunk. Vehicle seats may generally include a seat body and a seat back. The seat back is pivotally connected to the seat body in an extended position and a folded position. The back portion of the rear seat is coupled to the seat lock and is movable in response to the back being flipped over. When the vehicle seat is installed, the latch is typically secured to the body of the vehicle for use with the seat lock.

The seat lock according to the present utility model will be described in detail with reference to examples shown in fig. 1 to 9.

A seat lock according to the present utility model may include a lock case 100, a lock hook assembly 110, a lock catch assembly 120, a lock roller 130, and a lock return torsion spring 140. The lock housing 100 has an interior cavity. The shackle assembly 110 is rotatably disposed within the bore about a first axis AX1. The hook stop assembly 120 is rotatably disposed within the cavity about a second axis AX2. The second axis AX2 is parallel to the first axis AX1. The catch assembly 120 includes a first catch 120d. The locking roller 130 is rotatably disposed between the shackle assembly 110 and the anti-hooking assembly 120 about the second axis AX2. The locking roller 130 may abut the first stop 120d during movement about the second axis AX2 relative to the lock housing 100. The locking return torsion spring 140 is disposed offset from the first axis AX1 and the second axis AX2, respectively. The locking reset torsion spring 140 is connected to the locking roller 130 and the lock housing 100 to push the locking roller 130 Shi Jiayan toward the first stopper 120d in the first rotational direction R1, so that the locking roller 130 pushes against or approaches the first stopper 120d, thereby enabling the hook stopper assembly 120 to obtain the torque in the first rotational direction R1 applied by the locking reset torsion spring 140 through the locking roller 130.

According to the seat lock disclosed by the utility model, the locking reset torsion spring 140 is arranged in a dislocation manner with the first axis AX1 and the second axis AX2 respectively, so that the locking reset torsion spring 140 is prevented from occupying the axial space of the lock hook assembly 110 and the lock hook assembly 120, and the overall structure of the seat lock along the axial direction is more compact and the appearance size is smaller. The lock housing 100 accommodates the components such as the stop hook assembly 120 and the lock hook assembly 110, thereby playing roles of dust prevention, noise escape reduction and the like.

In the illustrated example of the utility model, the locking reset torsion spring 140 is farther from the second axis AX2 than the locking roller 130. That is, the lock return torsion spring 140 is located outside the rotation locus of the lock roller 130 about the second axis AX2. In other words, the moving track of the locking roller 130 is located between the locking return torsion spring 140 and the second axis AX2. This facilitates the arrangement of the lock return torsion spring 140 to ensure that the force applied by the lock return torsion spring 140 to the lock roller 130 has at least a component force toward the second axis AX2, thereby making the installation of the lock roller 130 more convenient and reliable.

Optionally, the locking return torsion spring 140 is farther from the plane in which the first axis AX1 and the second axis AX2 lie than the locking roller 130.

In addition, the seat lock may further include a hook stopper 122 and a hook return torsion spring 121. The stop 122 and the stop 120 are disposed in sequence along the second axis AX2 in the lumen. The stop 122 and the stop 120 are each abutted to the lock case 100 in a direction parallel to the second axis AX2. Here, one end of the hook stopper assembly 120 along the second axis AX2 is directly abutted to the lock case 100, and the other end of the hook stopper assembly 120 along the second axis AX2 is abutted to the lock case 100 by the hook stopper 122. This ensures that the catch assembly 120 is securely retained within the interior cavity of the lock housing 100 directly or indirectly along the second axis AX2, rather than being abutted to the lock housing 100 by the catch return torsion spring 121, thereby effectively preventing the catch assembly 120 from rattling in the direction of the second axis AX2. The stop hook stopper 122 and the stop hook assembly 120 may be in full contact with each other, or may have a gap therebetween, and may be in contact with each other when they move closer to each other. The stop hook reset torsion spring 121 is sleeved outside the second axis AX2 and connected to the lock case 100 and the stop hook assembly 120. That is, the hook return torsion spring 121 is disposed coaxially with the hook stop assembly 120. The stop hook reset torsion spring 121 is used to apply an elastic force to the stop hook assembly 120 in the first rotation direction R1 toward the latch hook assembly 110, so that the stop hook assembly 120 always has a tendency to rotate toward the latch hook assembly 110. In the moving process of the latch hook assembly 110, if the latch hook assembly 120 is not acted by an external force, the latch hook assembly 120 can always lean against the outer surface of the latch hook assembly 110 under the action of the elastic force of the latch hook reset torsion spring 121.

Further, the hook stopper 122 may be configured with an annular mounting groove provided extending in the circumferential direction around the second axis AX2. The annular mounting groove is used for accommodating the stop hook reset torsion spring 121. One of the two ends of the stop hook reset torsion spring 121 may penetrate the stop hook stopper 122 to be connected to the stop hook assembly 120. The other of the two end portions of the stop hook return torsion spring 121 may protrude from the notch of the annular mounting groove and be connected to the lock case 100. In the installed state in which the stop hook stopper 122 is installed to the seat lock, the notch of the annular installation groove faces away from the stop hook assembly 120, thereby increasing the contact area of the stop hook stopper 122 and the stop hook assembly 120.

Further, the shackle assembly 110 is configured to be rotatable between a locked position and an unlocked position. The seat lock may further include a latch hook limiter 115 and a latch hook return torsion spring 113. The shackle limiter 115 and the shackle assembly 110 are sequentially disposed within the cavity along the first axis AX1. The shackle limiter 115 and the shackle assembly 110 are both abutted to the lock housing 100 in a direction parallel to the first axis AX1. The latch hook reset torsion spring 113 is sleeved outside the first axis AX1 and connected to the latch case 100 and the latch hook assembly 110. That is, the latch hook reset torsion spring 113 is disposed coaxially with the latch hook assembly 110. The latch hook reset torsion spring 113 is configured to elastically apply a force to the latch hook assembly 110 Shi Jiayan in the second rotational direction R2 toward the unlocked position. The first rotational direction R1 is opposite to the second rotational direction R2. That is, when the latch hook assembly 110 is only acted by the latch hook reset torsion spring 113, the latch hook assembly 110 rotates along the second rotation direction R2 under the elastic force of the latch hook reset torsion spring 113 until the latch hook assembly 110 abuts against the inner wall of the lock housing 100 and is stabilized at the unlocking position. At this time, if the latch assembly 120 only receives the elastic force of the latch return torsion spring 121, the latch assembly 120 will abut against the outer surface of the latch assembly 110 under the elastic force of the latch return torsion spring 121, so as to prevent the latch assembly 110 from rotating toward the locking position, thereby keeping the latch assembly 110 in the unlocking position. The latch hook assembly 110 may be rotated toward the latched position in a direction opposite to the second rotation direction R2 by an external force. When the latch hook assembly 110 is located at the locking position, if the latch hook assembly 120 is only subjected to the elastic force of the latch hook reset torsion spring 121, the latch hook assembly 120 will abut against the outer surface of the latch hook assembly 110 under the elastic force of the latch hook reset torsion spring 121, so as to prevent the latch hook assembly 110 from rotating towards the unlocking position, so that the latch hook assembly 110 is kept at the locking position.

Further, the hook stop assembly 120 may further include a hook stop base 120c, a second stop 120e. The second axis AX2 passes through the hook stop base 120c. The first stopper 120d is provided on the outer peripheral surface of the hook base 120c so as to protrude in the radial direction of the hook base 120c. The second stopper 120e is provided on the outer peripheral surface of the stop base 120c so as to protrude in the radial direction of the stop base 120c. The first stopper 120d and the second stopper 120e are disposed at intervals in the circumferential direction with respect to the second axis AX2. And the radial outer dimension of the second stopper 120e is greater than the radial outer dimension of the first stopper 120d. The first stop portion 120d is configured to abut against the latch hook assembly 110 when the latch hook assembly 110 is located at the unlocked position. The second stop portion 120e is configured to abut against the latch hook assembly 110 when the latch hook assembly 110 is located at the locking position.

Accordingly, the latch hook assembly 110 may further include a latch hook base 111b, a first latch hook portion 111c, and a second latch hook portion 111d. The first axis AX1 passes through the shackle base 111b. The first and second latch hook portions 111c and 111d are located outside the latch hook base 111b and connected to an outer circumferential surface of the latch hook base 111b. The first latch hook portion 111c and the second latch hook portion 111d are at least partially spaced apart to form a latch hook groove 111e. The notch of the latch hook groove 111e faces away from the latch hook base 111b. The lock case 100 is provided with a receiving groove (not shown) having a notch facing outward. The receiving groove is for receiving the latch 160. The receiving groove is disposed generally corresponding to the spaced apart regions of the first and second axes AX1 and AX2 with the notch facing outwardly.

When the latch hook assembly 110 is in the unlatched position, the projections of the first latch hook portion 111c and the receiving groove in the same plane perpendicular to the first axis AX1 are at least partially coincident, and the projections of the second latch hook portion 111d and the receiving groove in the same plane perpendicular to the first axis AX1 are staggered. At this time, if the latch 160 moves into the receiving groove, it may abut against the first latch hook portion 111c to rotate the latch hook assembly 110 toward the latching position in a direction opposite to the second rotation direction R2. When the latch hook assembly 110 is in the unlatched position, the first latch hook portion 111c partially protrudes into the receiving recess and the second latch hook portion 111d is located outside the receiving recess, as viewed in a direction parallel to the first axis AX1.

When the latch hook assembly 110 is at the latch position, the projections of the first latch hook portion 111c and the receiving groove in the same plane perpendicular to the first axis AX1 are staggered, and the projections of the second latch hook portion 111d and the receiving groove in the same plane perpendicular to the first axis AX1 enclose a closed latch hole. At this time, the second latch hook portion 111d prevents the latch 160 from being withdrawn from the receiving groove. When the latch hook assembly 110 is at the latch position, the first latch hook portion 111c is located outside the receiving groove, and the second latch hook portion 111d extends into the receiving groove and closes the notch of the receiving groove to block the latch 160 in the receiving groove when viewed in a direction parallel to the first axis AX1.

Alternatively, when the latch hook assembly 110 is located at the latch position, the locking roller 130 is simultaneously abutted to the first stopper 120d and the latch hook assembly 110 under the elastic force of the locking reset torsion spring 140. This eliminates the gap between the latch assembly 120 and the latch assembly 110 on the one hand, and applies a force to the first stopper 120d to rotate the second stopper 120e in the first direction and applies a force to the latch assembly 110 in the opposite direction to the second rotation direction R2 to prevent the latch assembly 110 from rotating to the unlatched position, i.e., to enhance the preventing effect on the latch assembly 110. Moreover, when the latch hook assembly 110 is located at the locking position, if a force is applied to the latch hook assembly 110 solely to rotate in the second rotation direction R2, the force applied by the latch hook assembly 110 to the latch roller 130 is increased, and indirectly, the force applied by the latch roller 130 to the first stop portion 120d is also increased. The effect finally obtained is that the locking effect of the locking hook assembly 120 and the locking roller 130 on the locking hook assembly 110 is enhanced. That is, if the latch bolt 160 is located in the receiving groove while the latch hook assembly 110 is located at the latched position, it is difficult to disengage one of the whole of the seat lock and the latch bolt 160 by forcibly pulling the both.

For example, the lock case 100 may include a fixing base 101 and a cover plate 102. The cover plate 102 may be connected to the fixing base 101 by riveting or the like. An inner cavity is formed between the cover plate 102 and the fixing seat 101. The holder 101 has a first surface 101a facing the cavity. The cover plate 102 has a second surface 102a facing the cavity. The first surface 101a and the second surface 102a are disposed at intervals along the first axis AX1. The shackle assembly 110 and the stop assembly 120 are disposed proximate one of the first surface 101a and the second surface 102a to ensure that the swivel trajectories of the shackle assembly 110 and the stop assembly 120 intersect. The latch hook stopper 115 and the latch hook stopper 122 are disposed near the other of the first surface 101a and the second surface 102a.

Further, the latch hook assembly 110 and the latch hook assembly 120 are disposed proximate the first surface 101a. That is, the latch hook assembly 110 and the latch hook assembly 120 are closer to the fixing base 101, so that the position of the latch hook assembly 110 along the first axis AX1 can be reliably restricted by the fixing base 101. The latch hook limiter 115 and the latch hook limiter 122 are disposed proximate to the second surface 102a. The fixing base 101 may further include a first limit boss 101b and a second limit boss 101c. The first limit boss 101b protrudes from the first surface 101a along the first axis AX1. The first limit boss 101b abuts against the latch hook assembly 110. That is, the fixing base 101 abuts against the latch hook assembly 110 through the first limiting boss 101b to limit the latch hook assembly 110. The second limit boss 101c protrudes from the second surface 102a along the second axis AX2. The second limit boss 101c abuts against the stop hook assembly 120. That is, the fixing base 101 abuts against the stop hook assembly 120 through the second limiting boss 101c, and limits the stop hook assembly 120.

In addition, the lock housing 100 may further include a stopper post 101d. The stopper post 101d is provided to extend in a direction parallel to the first axis AX1. One end of the stopper post 101d is connected to one of the first surface 101a and the second surface 102a. The other end of the stopper post 101d abuts against the other of the first surface 101a and the second surface 102a. The spacing post 101d is configured to define a distance between the first surface 101a and the second surface 102a. The limit post 101d may assist in positioning the cover plate 102 and the fixing base 101 in the direction of the first axis AX1 therebetween during installation. The limit posts 101d can also enhance the overall strength of the seat lock while assisting in positioning.

Alternatively, the stopper post 101d is integrally constructed with the fixing base 101. The cover plate 102 can thus be simpler in construction and lighter in weight for ease of installation.

For example, the fixing base 101 is provided with a first guide groove 101e. The cover plate 102 is provided with a second guide groove 102b. The first guide groove 101e and the second guide groove 102b are each provided extending circumferentially around the second axis AX2. The projections of the first guide groove 101e and the second guide groove 102b in a plane perpendicular to the first axis AX1 coincide. The first guide groove 101e can be considered as two parts of one guide groove spaced apart in the direction of the first axis AX1. The projection of the first guide groove 101e in the plane in which the first axis AX1 and the second axis AX2 lie is located at least partially between the first axis AX1 and the second axis AX2. The locking roller 130 has both ends inserted into the first guide groove 101e and the second guide groove 102b, respectively.

In the illustrated example, the first guide groove 101e is located outside the plane in which the first axis AX1 and the second axis AX2 lie. The central angle of the first guide groove 101e with respect to the second axis AX2 is the same as the central angle of the second guide groove 102b with respect to the second axis AX2, such as an acute angle. The first guide groove 101e and the second guide groove 102b are located on one side of a plane in which the first axis AX1 and the second axis AX2 are located. The receiving groove of the lock case 100 is located at the other side of the plane where the first axis AX1 and the second axis AX2 are located.

In addition, the seat lock may further include an unlocking lever 150 and a lock plunger 160. The unlocking lever 150 is connected to the hook stopping assembly 120. The unlocking lever 150 is operable to rotate the hook stop assembly 120 in a direction opposite to the first rotational direction R1. The latch 160 is for attachment to the body of a vehicle. The latch 160 is configured to rotate the shackle assembly 110 in a direction opposite to the second rotation direction R2 when abutting the shackle assembly 110.

Further, the hook stopping component 120 is provided with a through hole 120a. The seat lock may also include a catch 151. One end of the buckle 151 is provided with a clamping groove 151a. The locking groove 151a is locked to the unlocking lever 150. The unlocking lever 150 clamped in the clamping groove 151a is in interference fit with the clamping groove 151a. The other end of the catch 151 is configured with a claw portion 151b and a non-return portion 151c. The other end of the catch 151 penetrates the hook stop member 120 through the through hole 120a. The click portion 151b and the check portion 151c are located on both sides of the through hole 120a in the hole depth direction of the through hole 120a and abut against the stop hook assembly 120 in the direction of the second axis AX2. The catch 151 may be rotatable about the centerline of the through hole 120a relative to the hook stop assembly 120, or alternatively fixed relative to each other. The click portion 151b is further away from the click groove 151a than the non-return portion 151c. The check portion 151c herein may be configured as an elastic structure to apply an elastic force to the check assembly 120 in the direction of the second axis AX2, thereby eliminating an axial gap of the catch 151 and the check assembly 120.

Alternatively, the shackle assembly 110 may include a shackle body 111 and a shackle cladding 112. The latch hook coating layer 112 is coated on the outer side of the latch hook body 111. The portion of the latch hook coating layer 112 for contacting the latch case 100 and the latch hook stopping member 120 is opened with a sound damping hole 112a. The latch hook coating 112 may be an injection molded part made of plastic, rubber, or the like. The latch hook coating 112 may be entirely coated on the latch hook body 111 or may be partially coated. In the illustrated example, the shackle cladding 112 is of a partially clad construction for ease of assembly. By providing the shackle cladding 112, it may be helpful to cushion the shackle assembly 110 from impact forces. By forming the noise elimination hole 112a, abnormal noise caused by collision of the latch hook assembly 110 can be reduced, and the purpose of noise reduction is achieved. The plastic coating and the silencing hole enable the latch hook assembly 110 to elastically deform when colliding with the latch shell 100 or the latch stop assembly 120, so that rigid collision is avoided, collision sound is reduced, and collision sound of the latch hook assembly 110, the latch stop assembly 120 and the latch shell 100 is eliminated.

In addition, the lock housing 100 may further include a sound attenuating member 102c. The silencer 102c is coated on the outer surface of the cover plate 102. The sound deadening member 102c may be constructed as a soft elastic structure such as rubber. For example, the silencer 102c may be disposed along the edge of the receiving groove and protrude into the receiving groove, so that the latch 160 entering the receiving groove contacts, and noise generated by collision between the latch 160 and the lock case 100 is reduced.

According to the vehicle seat, the space occupation can be reduced by applying the seat lock, so that the structural layout of the vehicle seat is more reasonable and compact.

The utility model further provides a vehicle. The vehicle may include a body and the vehicle seat described above. The seat body is connected to the vehicle body. The seat lock may include a shackle assembly 110 and a latch 160. The latch 160 is connected to the vehicle body. The latch hook assembly 110 is hooked to the latch 160 when the seat back is in the deployed position. When the seat back is in the folded position, the shackle assembly 110 is disengaged from the lock plunger 160.

When the latch hook assembly 110 of the seat lock is hooked with the latch 160, the seat back cannot be flipped over, and the seat back is now in a position to be leaned against by a person riding the vehicle. When the seat lock is disengaged from the latch 160, the seat back may be flipped to a folded position to expand the receiving space of the trunk.

According to the vehicle, the compactness of the mounting structure of the vehicle seat and the use experience of the vehicle seat are improved by applying the vehicle seat.

The seat lock of the present utility model will be further described with reference to fig. 1 to 9.

The seat lock according to the present utility model is a functional structural member for connecting a seat back and a vehicle body, and its main function is to fix the back by collision engagement of the back lock with the vehicle body lock plunger 160 when the rear seat is normally used. When the trunk space is enlarged by turning the seat over, the angle posture of the seat back is adjusted by unlocking the backrest lock and the lock of the vehicle body lock bolt 160 through the unlocking handle, so that the requirement of a customer for enlarging the automobile back row space is met.

In the illustrated example, the first hollow rivet 170 penetrates through the fixing seat 101 and is sleeved with the latch hook reset torsion spring 113, the latch hook assembly 110 and the latch hook limiting member 115 at the periphery thereof, and then is riveted with the cover plate 102. The latch hook assembly 110 is rigidly contacted with the cover plate 102 through the latch hook limiting member 115, so that a phenomenon that springs are mounted on two sides of the latch hook assembly 110 can shake left and right is avoided. The second hollow rivet 171 penetrates through the fixing seat 101, and is sleeved with a hook stopping component 120, a hook stopping reset torsion spring 121 and a hook stopping limiting piece 122 at the periphery of the second hollow rivet and then is riveted with the cover plate 102. The hook stop assembly 120 is in direct contact with the holder 101. By rigidly contacting the stop catch 122 and the cover plate 102, side-to-side rocking that may occur with springs mounted on both sides of the stop catch assembly 120 is avoided. The third rivet 172 is riveted to the cover plate 102 assembly through the locking return torsion spring 140. The locking reset torsion spring 140 is arranged on the third rivet 172, so that the problem of the increase of the size of the seat lock along the direction of the first axis AX1 caused by the installation on the first hollow rivet 170 and the second hollow rivet 171 is avoided. Meanwhile, the locking reset torsion spring 140 is eccentrically disposed, and an acting point of the locking reset torsion spring 140 on the locking roller 130 is located at a side of the locking roller 130 facing away from the second axis AX2. The restoring force applied to the locking roller 130 by the locking restoring torsion spring 140 is decomposed into a rotational force for circumferential rotation about the second axis AX2 and a pressing force for pressing the roller in a radial direction with respect to the second axis AX2. This prevents the locking roller 130 from being driven radially outward along the circumference of the movement, preventing the roller from moving outward. By providing a catch stop 122 between the catch assembly 120 and the cover plate 102 assembly, a catch stop 115 is provided between the catch assembly 110 and the cover plate 102 assembly. Two limit bosses are integrally injection-molded at the two rivet through holes 120a of the fixing base 101, respectively. This helps to precisely control the plane of motion of the check hook assembly 120, the latch hook assembly 110, while enhancing the static strength properties of the back lock in the latched state. The locked state here corresponds to a state in which the latch hook assembly 110 is located at the locked position.

The working principle of the seat lock is as follows: the external force drives the seat back to rotate backward, causing the latch 160 to strike the shackle assembly 110 and rotate it. When the latch hook assembly 110 rotates from the unlatched position to the latched position, the latch hook assembly 110 releases the limit on the latch hook assembly 120. Meanwhile, the locking hook component 120 rotates under the action of the locking hook reset torsion spring 121 and abuts against the locking hook component 110, so that the function of preventing the locking hook component 110 from moving to the unlocking position is realized. At this time, the latch hook assembly 110 and the entirety of the seat lock together complete the clamping of the latch 160. When the unlocking lever 150 drives the locking hook assembly 120 to rotate along the direction opposite to the first rotation direction R1, the locking hook assembly 120 is located at the outer side of the rotation track of the locking hook assembly 110, so as to unlock the locking hook assembly 120 from the locking hook assembly 110. At this time, the latch hook assembly 110 returns under the latch hook return torsion spring 113, releasing the latch 160 to complete the unlocking of the seat back and the vehicle body. At this time, the latch hook assembly 110 is maintained in the unlocking position by the preload of the return spring.

Unless defined otherwise, technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model pertains. The terminology used herein is for the purpose of describing particular implementations only and is not intended to be limiting of the utility model. Terms such as "disposed" or the like as used herein may refer to either one element being directly attached to another element or one element being attached to another element through an intermediate member. Features described herein in one embodiment may be applied to another embodiment alone or in combination with other features unless the features are not applicable or otherwise indicated in the other embodiment.

The present utility model has been described in terms of the above embodiments, but it should be understood that the above embodiments are for purposes of illustration and description only and are not intended to limit the utility model to the embodiments described. Those skilled in the art will appreciate that many variations and modifications are possible in light of the teachings of the utility model, which variations and modifications are within the scope of the utility model as claimed.

Claims (14)

1. A seat lock, the seat lock comprising:

a lock housing having an interior cavity;

the lock hook assembly is rotatably arranged in the inner cavity around a first axis;

a catch assembly rotatably disposed about a second axis in the lumen, the second axis being parallel to the first axis;

a locking roller movably disposed between the shackle assembly and the stop hook assembly; and

the locking reset torsion spring is respectively arranged with the first axis and the second axis in a dislocation way, and is connected to the locking roller and the lock shell so as to apply thrust to the locking roller.

2. The seat lock according to claim 1, wherein,

the catch assembly includes a first stop portion, the locking roller being movably disposed about the second axis relative to the lock housing, the locking roller being configured to move toward the first stop portion when acted upon by the urging force of the locking return torsion spring.

3. The seat lock according to claim 2, wherein,

the locking reset torsion spring is further from the second axis than the locking roller.

4. A seat lock according to any one of claims 1 to 3, characterized in that,

the seat lock further comprises a stop hook limiting piece and a stop hook reset torsion spring, the stop hook limiting piece and the stop hook component are sequentially arranged in the inner cavity along the second axis, the stop hook limiting piece and the stop hook component are all abutted to the lock shell along the direction parallel to the second axis, the stop hook reset torsion spring and the stop hook component are coaxially arranged, and the stop hook reset torsion spring is connected to the lock shell and the stop hook component so as to apply elastic acting force to the stop hook component along the first rotation direction towards the lock hook component.

5. The seat lock according to claim 4, wherein,

the shackle assembly is configured to rotate between a locked position and an unlocked position,

the seat lock further comprises a lock hook limiting part and a lock hook reset torsion spring, the lock hook limiting part and the lock hook assembly are sequentially arranged in the inner cavity along the first axis, the lock hook limiting part and the lock hook assembly are all abutted to the lock shell along the direction parallel to the first axis, the lock hook reset torsion spring and the lock hook assembly are coaxially arranged, and the lock hook reset torsion spring is connected to the lock shell and the lock hook assembly so as to apply elastic acting force to the lock hook assembly along the second rotation direction towards the unlocking position, and the first rotation direction is opposite to the second rotation direction.

6. The seat lock according to claim 5, wherein,

the lock case includes:

the fixing seat is provided with a first surface; and

a cover plate connected to the fixing base, wherein the inner cavity is formed between the cover plate and the fixing base, the cover plate is provided with a second surface,

the first surface and the second surface are spaced apart,

the shackle assembly and the stop assembly are disposed proximate one of the first surface and the second surface, and the shackle limiter and the stop limiter are disposed proximate the other of the first surface and the second surface.

7. The seat lock according to claim 6, wherein,

the latch hook assembly and the latch hook stopping assembly are arranged close to the first surface, and the latch hook limiting piece and the latch hook stopping limiting piece are arranged close to the second surface;

the fixing base also comprises:

a first limiting boss protruding from the first surface along the first axis, the first limiting boss abutting the latch hook assembly; and

the second limiting boss protrudes from the second surface along the second axis, and the second limiting boss is abutted to the hook stopping component.

8. The seat lock according to claim 6, wherein,

the lock case further includes a limit post extending in a direction parallel to the first axis, one end of the limit post being connected to one of the first surface and the second surface, the other end of the limit post being abutted to the other of the first surface and the second surface to define a distance between the first surface and the second surface.

9. The seat lock according to claim 6, wherein,

the fixing seat is provided with a first guide groove, the cover plate is provided with a second guide groove, the first guide groove and the second guide groove extend circumferentially around the second axis, the projections of the first guide groove and the second guide groove in a plane perpendicular to the first axis coincide, the projections of the first guide groove in the plane where the first axis and the second axis are located are at least partially positioned between the first axis and the second axis,

the two ends of the locking roller are respectively inserted into the first guide groove and the second guide groove.

10. The seat lock according to claim 5, wherein,

the seat lock further comprises:

an unlocking lever connected to the hook stopping assembly, the unlocking lever being operable to rotate the hook stopping assembly in a direction opposite to the first rotational direction;

a latch for connection to a body of a vehicle, the latch configured to rotate the shackle assembly in a direction opposite the second rotational direction when abutting the shackle assembly.

11. The seat lock according to claim 10, wherein,

the stop hook component is provided with a through hole,

the seat lock further comprises:

the buckle, the draw-in groove has been seted up to the one end of buckle, draw-in groove joint the release lever, the other end of buckle is constructed with claw portion and non return portion, the other end of buckle is passed through the through-hole is penetrated the end of locking the hook assembly, claw portion and non return portion are followed the hole depth direction of through-hole is located the both sides of through-hole and butt end the end of locking the hook assembly.

12. The seat lock according to claim 6, wherein,

the lock hook assembly comprises a lock hook body and a lock hook coating layer, the lock hook coating layer is coated on the outer side of the lock hook body, and a silencing hole is formed in the part, which is used for contacting the lock shell and the locking assembly, of the lock hook coating layer; and/or

The lock shell further comprises a silencing piece, and the silencing piece is coated on the outer surface of the cover plate.

13. A vehicle seat, characterized in that the vehicle seat comprises:

a seat body;

a seat back pivotally connected to the seat body in an extended position and a folded position; and

a seat lock as claimed in any one of claims 1 to 12, connected to the seat back.

14. A vehicle, characterized in that the vehicle comprises:

a vehicle body; and

the vehicle seat of claim 13, said seat body being coupled to said vehicle body, said seat lock including a shackle assembly and a latch, said latch being coupled to said vehicle body,

the latch hook assembly is hooked to the latch when the seat back is in the deployed position; the shackle assembly disengages the lock bolt when the seat back is in the folded position.