WO2016108514A1

WO2016108514A1 - Seat recliner

Info

Publication number: WO2016108514A1
Application number: PCT/KR2015/014225
Authority: WO
Inventors: 장재용; 채수영
Original assignee: 현대다이모스(주)
Priority date: 2014-12-30
Filing date: 2015-12-24
Publication date: 2016-07-07
Also published as: KR20160083161A

Abstract

The present invention relates to a seat recliner for minimizing gaps among components when the recliner is locked, and for increasing the rigidity thereof. To this end, the present invention comprises: a lower part having a shaft rotatably provided therein, and provided with a guide block; an upper part provided so as to rotate relative to the lower part and the shaft; a lock member moving along the guide block so as to be locked to or unlocked from the inner peripheral surface of the upper part, when the shaft rotates; and a sub-lock member moving when the shaft rotates, and pressing one end portion of the lock member when moving, so as to bring the other end portion of the lock member into close contact with the guide block.

Description

Recliner for Seat

The present invention relates to a seat recliner which minimizes the clearance between parts during locking operation of the recliner and increases rigidity.

The seat of the vehicle is usually configured to include a seatback for supporting the back of the occupant and a seat cushion for supporting the thigh at the hip.

The seatback can be angle-adjusted by the recliner, and this recliner requires a convenient adjustment function for optimal driving posture, a function of maintaining the seatback angle after adjustment and a strength to protect the passenger in the event of a collision. .

On the other hand, according to the recent trend to reduce the weight of the automobile to improve the fuel consumption of the recliner, which is a core part of the seat is also being miniaturized and lightened due to a lot of attention to light weight, on the other hand, there is a problem that the weakness in strength or play.

In the conventional recliner, a gear rim is rotatably coupled to a lever rotation shaft and a guide plate by a clamp ring, and a cam, a lock gear support member, a lock gear, a main control disc, an elastic member, etc. are provided between the guide plate and the gear rim. It can be configured to include.

In this conventional recliner, the cam is rotated when the lever rotation shaft is rotated, and the lock gear is linearly moved in the radial direction while the lock gear support member is rotated together by the rotation of the cam. Therefore, the outer tooth formed on the outer surface of the lock gear is engaged or released from the inner tooth formed on the inner circumferential surface of the gear rim, thereby selectively operating the rotation operation of the guide plate relative to the gear rim.

However, the conventional recliner has a structure in which the lock gear supporting member supported by the cam pushes the lock gear only in the radial direction when the outer gear of the lock gear is engaged with the inner gear of the gear rim. The clearance between the external gear and the internal gear rim is reduced, but the clearance between the side of the gear and the guide block that guides it does not decrease. There is still a problem that the clearance between parts still occurs inside the recliner.

In addition, since the space in which the lock gear support member should be rotated and the space in which the lock gear should be linearly moved must be secured inside the recliner, the total size of the recliner must be increased, so that the volume and weight of the recliner are increased. There is also a growing problem.

Moreover, by adding a lock gear support member for pushing the lock gear in conjunction with the rotation of the cam, the parts to be operated during locking and unlocking are increased, so that the operation between parts is not smooth, and the behavior of each part is incomplete. There is also a problem in which half locking can occur.

The matters described as the background art are only for the purpose of improving the understanding of the background of the present invention, and should not be taken as acknowledging that they correspond to the related art already known to those skilled in the art.

The present invention has been made to solve the conventional problems as described above, by strengthening the locking performance of the part that rotates with the seat back, to minimize the clearance between parts during the locking operation of the recliner, for the seat for increased rigidity To provide a recliner.

The configuration of the present invention for achieving the above object, the shaft is rotatably provided, the lower part formed with a guide block; An upper part rotatably provided relative to the lower part and the shaft; A lock member moved along the guide block during rotation of the shaft to be locked or unlocked to the inner circumferential surface of the upper part; And a sub lock member which is moved when the shaft is rotated and presses one end of the lock member so that the other end of the lock member is in close contact with the guide block.

The upper part rotates concentrically with the lower part; The guide block is formed spaced apart in the circumferential direction on one surface of the lower part; The lock member is provided between the guide block, the sliding member is moved in the radial direction about the shaft; The sub-lock member is provided between the lock member, it can be moved in the radial direction about the shaft.

An inclined surface is formed at one end of the lock member, and the inclined surface may have a shape in which an outer end thereof is inclined toward an outer end of the sub lock member.

At the end of the sub-lock member for pressing the lock member may be formed a pressure inclined surface having a slope of the shape corresponding to the inclined surface.

Guide blocks are provided at both ends of one end of the sub lock member, and the sub lock member is guided along the guide block; Pressing portions are formed at both ends of the other end of the sub-lock member, and when the sub-lock member moves in the outer radial direction, one end of the lock member may be pressed by the pressing portion.

Internal teeth are formed on an inner circumferential surface of the upper part; A main outer tooth is formed on an outer surface of the lock member facing the inner tooth; A sub-outer is formed on an outer surface of the sub-lock member facing the inner tooth, and the upper part may be operated by locking the main outer tooth and the sub-outer tooth to the inner tooth.

A shaft which penetrates through the center of the lower part and the upper part and is rotatably provided; A guide protrusion formed on one surface of the lock member and the sub lock member; It rotates in conjunction with the shaft, the cam hole is formed in a long hole shape in which the length of the shaft center is gradually changed in the portion corresponding to the guide projection, the locking member and the sub lock member while the guide projection is guided along the cam hole during rotation It may further include a; operating plate for linearly moving in the radial direction.

Stepped portions respectively formed on inner surfaces of the lock member and the sub lock member facing the shaft; A cam plate which rotates in association with the shaft and has a support portion formed on an outer circumferential surface corresponding to the stepped portion, and which supports or leaves the support portion during rotation to limit or allow radial movement of the lock member and the sub-lock member. It may further include.

The pressing portion of the sub-lock member for pressing and supporting the lock member may be configured to support the lock member with at least the same or stronger force than the support portion for supporting the lock member.

A restoring spring for providing an elastic restoring force with respect to the rotational operation direction of the operation plate for unlocking the lock member and the sub-lock member from the upper part.

The lower part is connected to the seat cushion; The upper part is connected to the seatback and rotatably coupled to the lower part; The cam plate is disposed between the shaft and the lock member and the sub lock member on one surface of the lower part; The operation plate is provided between the cam plate and the upper part; The restoring spring is composed of one end hanging on the lower part and the other end passing through the cam plate and the operation plate; The shaft may be provided through the upper part, the operation plate, the cam plate, and the lower part.

The present invention through the above-described problem solving means, the end of the sub-lock member is pressed by the lock member by the inclined surface structure, the lock member is in close contact with the guide block, the clearance between the lock member and the guide block is removed bar In addition, the locking structure of the recliner can be robustly designed, and the assembly rigidity of the recliner can be increased.

Furthermore, since the sub lock member is provided between the lock members, space in the radial direction is unnecessary in the recliner for the movement of the sub lock member, so that the recliner can be made smaller and lighter, thereby reducing the cost and weight of the recliner. There is also an effect of reducing the.

1 is a view showing a shape shown in the upper part by separating the recliner according to the present invention.

2 is a view showing a shape shown on the lower part side by separating the recliner according to the present invention.

Figure 3 is a view for explaining the locking state of the seat back by the recliner of the present invention.

Figure 4 is a view for explaining the unlocking state of the seat back by the recliner of the present invention.

When described in detail with reference to the accompanying drawings a preferred embodiment of the present invention.

The seat recliner of the present invention largely comprises a lower part 100, an upper part 200, a lock member 300, and a sub lock member 400.

1 and 2, the present invention will be described in detail. First, the lower part 100 is installed in a state of rotation restraint on the seat cushion side, and the shaft 500 may be rotatably installed at the center thereof. The guide block 110 may be formed on one surface facing the upper part 200.

For example, the guide block 110 is formed on a surface of the lower part 100 at a predetermined radius from the center thereof, and is formed in a state spaced apart by a predetermined interval along the circumferential direction, and is mainly centered on the lower part 100. It is formed at a position opposite to each other, in particular may serve to guide the linear movement of the lock member 300 and the sub-lock member 400.

The upper part 200 is connected to the seatback and is rotatably provided with the seatback, and may be installed to allow relative rotation with the lower part 100 and the shaft 500. In addition, the shaft 500 may be provided around the shaft 500 to form a concentric shaft with the lower part 100.

The upper part 200 has a covering 120 installed in a shape surrounding the outer circumferential surface thereof, and may be rotatably coupled to one side of the lower part 100 by the covering 120.

The lock member 300 is disposed between the guide blocks 110 and moves along the guide block 110 when the shaft 500 rotates, and is linearly moved inward and outward from the center of the shaft 500. .

For example, the lock member 300 is locked to the upper part 200 by being in close contact with the inner circumferential surface of the upper part 200 when moving from the center of the shaft 500 to the outer radial direction, and the upper part when moving in the inner radial direction. The upper part 200 may be unlocked from the inner circumferential surface of the part 200.

The sub lock member 400 is moved radially from the center of the shaft 500 when the shaft 500 is rotated, and the sub lock member 400 is locked when the sub lock member 400 is moved radially outward from the center of the shaft 500. By pressing one end of the member 300, the other end of the lock member 300 is configured to be in close contact with the guide block 110.

Specifically, an inclined surface 320 is formed at one end of the lock member 300 that is pressed by the sub lock member 400, and the inclined surface 320 has an outer end thereof at an outer end of the sub lock member 400. It may be formed in a shape inclined toward the part.

That is, according to the above configuration, when the sub-lock member 400 is moved in the outer radial direction with respect to the shaft 500, the end of the sub-lock member 400 in the process of the friction and sliding on the inclined surface 320 One end of the lock member 300 is pressed, and the lock member 300 is strongly pressed against the side of the guide block 110 formed at the other end side as shown in FIG. 3, and the lock member 300. The other end of the close contact with the guide block (110).

Therefore, the clearance between the side of the lock member 300 and the side of the guide block 110 is removed, thereby robustly design the locking structure of the recliner, and increase the assembly rigidity of the recliner.

In addition, referring to Figure 3, in the present invention, the end of the sub-lock member 400 for pressing the lock member 300 is formed a pressure inclined surface 420a having a slope of the shape corresponding to the inclined surface (320). Can be.

That is, the pressure inclined surface 420a having a shape corresponding thereto is formed at the end of the sub lock member 400 that presses the inclined surface 320, thereby more stably pressing the lock member 300 toward the guide block 110. I can push it.

Meanwhile, in the present invention, referring to FIGS. 3 and 4, guide blocks 110 are provided at both ends of one end of the sub lock member 400, and the sub lock member 400 is guided along the guide block 110. The guide can be moved. At this time, the guide block 110 provided on both sides of the sub-lock member 400, compared to the guide block 110 formed between the lock member 300 to secure a space for the sub-lock member 400 to move. Its radial length can be formed short.

In addition, the pressing portion 420 may be integrally formed at both ends of the other end of the sub lock member 400, and the pressing may be performed when the sub lock member 400 moves in an outer radial direction about the shaft 500. The portions 420 may press one end of each of the locking members 300, respectively.

That is, while the sub-lock member 400 is moved in the outer radial direction, by simultaneously pushing the lock member 300 provided on both sides of the sub-lock member 400 toward the guide block 110 provided on the side, reckle The locking structure of the liner is designed to be more robust.

In addition, since the sub lock member 400 is installed between the lock members 300, space in the radial direction for the movement of the sub lock member 400 is unnecessary as in the prior art, so that the recliner can be reduced in size and weight. This reduces the cost and weight of the recliner.

In the present invention, referring to Figures 1 and 2, the inner tooth 210 is formed on the inner peripheral surface of the upper part 200, the main outer tooth 310 on the outer surface of the lock member 300 facing the inner tooth 210 ) Is formed, and in particular, the sub-outer 410 may be formed on the outer surface of the sub-lock member 400 facing the inner tooth 210.

That is, when the lock member 300 and the sub-lock member 400 are moved radially outward from the center of the shaft 500 by the rotation of the shaft 500, the main outer tooth 310 as well as the sub outer tooth 410 are upper. By engaging each of the internal teeth 210 formed in the part 200, the locking performance of the upper part 200 is further improved.

On the other hand, the present invention, the locking plate 300 and the sub-lock member 400 may be moved by the operation plate 600 is rotated in accordance with the rotation of the shaft (500).

1 to 4, the shaft 500 penetrates the center of the lower part 100 and the upper part 200, and the shaft 500 is the lower part 100 and the upper part 200. It is installed so that relative rotation is possible with respect to). At this time, the shaft 500 may be rotated in conjunction with a reclining lever (not shown) for the reclining operation, it may be provided through the center of the operation plate 600 and the cam plate 700 to be described later.

The guide protrusions 330 and 430 may be formed on one surface of the lock member 300 facing the upper part 200 and one surface of the sub lock member 400, respectively.

The operation plate 600 may rotate in cooperation with the shaft 500, and a cam hole 610 may be formed at a portion corresponding to the

guide protrusions

330 and 430.

For example, the cam hole 610 may be formed in a long hole shape in which the length with respect to the center of the shaft 500 is gradually changed. When the operation plate 600 rotates, the

guide protrusions

330 and 430 may be cam holes. By being guided along the 610, the lock member 300 and the sub lock member 400 may be linearly moved in the radial direction.

That is, FIG. 3 is a state in which the lock member 300 and the sub lock member 400 are locked to the upper part 200, and in this state, when the operation plate 600 is rotated clockwise by the shaft 500, Each of the

guide protrusions

330 and 430 formed on the lock member 300 and the sub lock member 400 is guided along the corresponding long hole, and the lock member 300 and the sub lock member 400 are radially inward as shown in FIG. 4. Is moved straight. Thus, the lock member 300 and the sub-lock member 400 are disengaged from the inner tooth 210 of the upper part 200, so that the seat back together with the upper part 200 can be rotated.

On the contrary, in the state of FIG. 4, when the operation plate 600 rotates counterclockwise, the

guide protrusions

330 and 430 formed in the lock member 300 and the sub lock member 400 are guided along the long hole. As shown in FIG. 3, the lock member 300 and the sub lock member 400 are linearly moved in the outer radial direction. Therefore, the lock member 300 and the sub-lock member 400 are meshed with the inner tooth 210 of the upper part 200, thereby limiting the rotation of the upper part 200 and the seat back.

In addition, the present invention, when locking the lock member 300 and the sub-lock member 400, can be configured to mechanically maintain the locked operating state using the stepped portion (340,440) and the cam plate 700. .

1 to 4,

step portions

340 and 440 are formed on inner surfaces of the lock member 300 and the sub lock member 400 facing the shaft 500, respectively, and the

step portions

340 and 440 are formed by the shaft ( It may be configured to include

protrusions

342 and 442 which protrude relatively to the portion facing 500 and recesses 344 and 444 on one side thereof.

The cam plate 700 is disposed between the shaft 500 and the lock member 300 and the sub lock member 400 on one surface of the lower part 100, and is provided to rotate in conjunction with the shaft 500. .

For example, the support 710 protrudes from the outer circumferential surface of the cam plate 700 to correspond to the stepped

parts

340 and 440, so that the support part 710 is formed on the stepped

parts

340 and 440 when the cam plate 700 rotates. Supported or detached to limit or allow the radial movement of the lock member 300 and the sub-lock member 400.

That is, when the cam plate 700 is rotated in the clockwise direction by the shaft 500 in the state of FIG. 3, the support parts 710 formed on the lock member 300 and the sub lock member 400 are protruding

portions

342 and 442. The

protrusions

342 and 442 are not caught by the support part 710 while rotating toward the recessed

parts

344 and 444 on one side thereof. As shown in FIG. 4, the lock member 300 and the sub lock member 400 are radially inward. Is moved straight.

On the contrary, in the state of FIG. 4, when the cam plate 700 rotates in the counterclockwise direction, each of the supporting parts 710 formed in the lock member 300 and the sub lock member 400 is located at the other side of the

depressions

344 and 444. The

protrusions

342 and 442 rotate in the direction, in which the lock member 300 and the sub-lock member 400 are linearly moved in the outer radial direction. As shown in FIG. 3, the support 710 is supported by the

protrusions

342 and 442. It is put in the state which becomes. Therefore, it is possible to mechanically maintain the locking operation of the lock member 300 and the sub lock member 400 moved in the outer radial direction through the structure of the support portion 710 supported on the stepped portion.

Thus, in the present invention, as well as the linear movement of the lock member 300, the locking operation of the lock member 300 is made directly by the operating plate 600 and the cam plate 700, the operation of the lock member 300 This improves the operating reliability and marketability of the recliner.

In addition, the present invention, in the state of FIG. 3, the pressing portion 420 of the sub-lock member 400 for pressing and supporting the lock member 300, the support portion 710 for supporting the lock member 300 It may be configured to support the lock member 300 with at least the same or stronger force than).

That is, the pressing portion 420 of the sub-lock member 400 strongly pushes one end of the lock member 300, so that the other end of the lock member 300 when the locking member 300 is locked, the guide block on the side thereof. Strongly pressed by the 110, thereby eliminating the occurrence of play between the lock member 300 and the guide block 110.

In addition, the present invention, the restoring spring 800 to provide an elastic restoring force with respect to the rotational operation direction of the operation plate 600 for unlocking the lock member 300 and the sub-lock member 400 from the upper part 200 It may be configured to include more.

For example, the restoration spring 800, one end may be caught by the guide block 110 of the lower part 100, the other end may be caught through the cam plate 700 and the operation plate 600.

Accordingly, when operating in the state of Figure 3 to 4, the tensile force is generated in the restoring spring 800 to provide the elastic restoring force to the operating plate 600 and the cam plate 700. Then, in the case of restoring to the state of FIG. 4 to 3 in FIG. 4 by the elastic restoring force provided by the restoring spring 800, the operating plate 600 and the cam plate 700, as well as the shaft 500 together reclining operation Can be rotated to restore the previous state.

On the other hand, the present invention has been described in detail only with respect to the specific examples described above it will be apparent to those skilled in the art that various modifications and variations are possible within the technical scope of the present invention, it is natural that such variations and modifications belong to the appended claims. .

[Description of the code]

100: lower part 110: guide block

200: upper part 210: Natchi

300: lock member 310: main outer tooth

320: slope 330: guide projection

340: step 342: protrusion

344: depression 400: sub-lock member

410: sub-external value 420: pressing part

420a: Pressurized slope 430: Guide protrusion

440: step 442: protrusion

444: depression 500: shaft

600: operation plate 610: cam hole

700: cam plate 710: support

800: restoration spring

Claims

A lower part rotatably provided with a shaft and having a guide block;

An upper part rotatably provided relative to the lower part and the shaft;

A lock member moved along the guide block during rotation of the shaft to be locked or unlocked to the inner circumferential surface of the upper part; And

And a sub-lock member which is moved when the shaft rotates and presses one end of the lock member so that the other end of the lock member is in close contact with the guide block.

The upper part rotates concentrically with the lower part;

The guide block is formed spaced apart in the circumferential direction on one surface of the lower part;

The lock member is provided between the guide block, the sliding member is moved in the radial direction about the shaft;

The sub-lock member is provided between the lock member, the recliner for a seat, characterized in that the sliding movement in the radial direction about the shaft.
The method according to claim 1,

An inclined surface is formed at one end of the lock member, wherein the inclined surface is formed such that the outer end is inclined toward the outer end of the sub lock member.
The method according to claim 2,

Recliner for seating characterized in that the pressure inclined surface having an inclination of the shape corresponding to the inclined surface is formed at the end of the sub-lock member for pressing the lock member.
The method according to claim 1,

Guide blocks are provided at both ends of one end of the sub lock member, and the sub lock member is guided along the guide block;

The pressing portion is formed on both sides of the other end of the sub-lock member, the recliner for a sheet, characterized in that for pressing the one end of the lock member by the pressing portion when the sub-lock member moves in the outer radial direction.
The method according to claim 1,

Internal teeth are formed on an inner circumferential surface of the upper part;

A main outer tooth is formed on an outer surface of the lock member facing the inner tooth;

A sub-outer is formed on an outer surface of the sub-lock member facing the inner tooth, and the upper part is locked while the main outer tooth and the sub-outer tooth are engaged with the inner tooth, and the upper recliner is operated.
The method according to claim 2,

A shaft which penetrates through the center of the lower part and the upper part and is rotatably provided;

A guide protrusion formed on one surface of the lock member and the sub lock member;

It rotates in conjunction with the shaft, the cam hole is formed in a long hole shape in which the length of the shaft center is gradually changed in the portion corresponding to the guide projection, the locking member and the sub lock member while the guide projection is guided along the cam hole during rotation Recliner for seat further comprises a; operation plate for linearly moving in the radial direction.
The method according to claim 6,

Stepped portions respectively formed on inner surfaces of the lock member and the sub lock member facing the shaft;

A cam plate which rotates in association with the shaft and has a support portion formed on an outer circumferential surface corresponding to the stepped portion, and which supports or leaves the support portion during rotation to limit or allow radial movement of the lock member and the sub-lock member. A recliner for seats, further comprising.
The method according to claim 7,

The pressing portion of the sub-lock member for pressing and supporting the lock member is configured to support the lock member with at least the same or stronger force than the support portion for supporting the lock member.
The method according to claim 7,

And a restoring spring for providing an elastic restoring force with respect to a rotational operation direction of the operation plate for unlocking the lock member and the sublock member from the upper part.
The method according to claim 9,

The lower part is connected to the seat cushion;

The upper part is connected to the seatback and rotatably coupled to the lower part;

The cam plate is disposed between the shaft and the lock member and the sub lock member on one surface of the lower part;

The operation plate is provided between the cam plate and the upper part;

The restoring spring is composed of one end hanging on the lower part and the other end passing through the cam plate and the operation plate;

The shaft is a recliner for the seat, characterized in that provided through the upper part, the operation plate, the cam plate and the lower part.