KR101419700B1 - Miniature round recliner - Google Patents

Abstract

The present invention relates to a small round recliner. The purpose of the present invention is to provide a small round recliner, which can adjust the angle of a seatback steplessly and stably without generating noise and can block the seatback from being gradually pushed out to be released due to the reduction of friction against right and left wedges, in a manual control type recliner. The small round recliner of the present invention includes: a lever socket which is axially coupled to a drive shaft; an external gear into which the lever socket is rotatably inserted, and which has a rough groove formed along an inner peripheral surface of a receiving portion, and has an external gear formed along an outer peripheral surface; an anti-slip disk which is arranged to be inserted into the receiving portion of the external gear, and has fixing protrusions inserted into the rough groove of the receiving portion to be coupled to the rough groove by the elasticity of an elastic portion; a cam which has a cam protrusion arranged to be fitted to a slide hole which is formed on the anti-slip disk; right and left wedges which are spaced apart from each other in the receiving portion to be arranged to be inserted therein so as to be positioned between the cam and a burring portion of the external gear; an internal gear which has a gear receiving portion to which the external gear is coupled in an eccentric gear manner, and which has a central receiving hole formed to be connected to the gear receiving portion such that the lever socket and the cam are inserted into the central receiving hole; and a wedge spring arranged to be connected to the right and left wedges. When the lever socket is rotated, the anti-slip disk is linearly moved while compressing the elastic portion by the elasticity of the lever socket. Therefore, the locking between the rough groove and the fixing protrusion is cancelled, and then the torque of the lever socket is transmitted to the cam by the right and left wedges, thereby causing the external gear to be eccentrically rotated in the gear receiving portion of the internal gear.

Description

[0002] MINIATURE ROUND RECLINER [0003]

The present invention relates to a small round recliner, and relates to a small-sized round recliner that reduces the backlash of the recliner in which the inclination angle of the seat back is adjusted by manual operation, the back frame shaking phenomenon, and the operation noise due to the operation.

BACKGROUND ART Generally, a seat of a vehicle largely consists of a seat back supporting a passenger's back and a seat cushion for supporting a hip and a thigh, and a skeleton of a back frame and a seat cushion A recliner capable of adjusting the angle of the seat back in the forward and backward directions in accordance with the body shape and the attitude of the user is mounted on the jointed portion of the cushion frame.

The two recliners are mounted on the left and right sides of the seat, respectively, and the two recliners are integrally spline-coupled to both ends of the connecting shaft.

Wherein the recliner is divided into an electric recliner for performing a reclining operation while the connecting shaft is rotated by a driving force of an electric motor and a manual recliner for performing a reclining operation while being rotated by a lever or dial operation of an occupant, The recliner has been widely used in recent years by users who prefer expensive manual motors and expensive manual motors. However, manual recliner dial type is widely used.

Figs. 1 and 2 show an example of a recliner installed on a conventional vehicle seat. Basically, the recliner shown in Fig. 1 is connected to a first gear member 2 (not shown) And a second gear member 3 in which an external gear 3a is formed and the first and second gear members 2 and 3 are structurally different gear sizes Wedges 4 and 5 interposed in the interspace are eccentrically engaged with the first gear member 2 and the second gear member 3 in the assembled state by different pitch circle diameters (PCD) Thereby maintaining the eccentric state and maintaining the unlocking state for the locking state or the recliner operation. Reference numerals '7' and '8' denote an inner cover and an outer cover for maintaining and protecting the aforementioned series of component fastening states.

2, when the rotating socket 1, which is splined with the driving shaft, is rotated in the direction of arrow A, when the operation force of the user is transmitted to the driving shaft at the time of unlocking, The left wedge rotation projection 1a of the pair of wedge rotation projections formed on the rotary socket 1 overcomes the elastic restoring force of the wedge spring 6 and pushes the left wedge 4 in the direction of arrow A, The frictional force applied to the outer peripheral surface of the wedge 4 and the inner peripheral surface of the second bearing member 3b of the second gear member 3 is released.

The wedge 4 on the left side continues to rotate in the direction of the arrow A while the wedge 4 on the left side and the wedge 5 on the right side connected to the spring 6 The second gear member 3 is moved in the direction of arrow A to generate a frictional force between the outer peripheral surface of the right wedge 5 and the inner peripheral surface of the second bearing member 3b on the second gear member 3, To adjust the inclination angle of the seat back.

Further, when the user rotates the drive shaft in the reverse direction and the rotary socket 1 rotates in the direction of arrow B, the inclination angle of the seat back is adjusted while the second gear member 3 is rotated at the reduced speed in the direction of arrow B.

When the operation force applied to the rotary socket 1 is released, the wedges 4 and 5 are moved away from each other due to the restoring force of the spring 6 and the first bearing member 21 of the first gear member 2 side The frictional force in the directions of the arrows A and B is generated by pushing the outer peripheral surface and the inner peripheral surface of the second bearing member 35 on the side of the second gear member 3 so that the rotation of the first gear member 2 in the directions A and B is blocked Thereby maintaining the locking state.

However, when the conventional recliner as described above is in the normal state, that is, when the seatback is kept in the locked state, only the elastic restoring force of the spring 6, which separates the wedges 4, 2 gear members 2 and 3 are designed to have sufficient frictional force between the two gear members 2 and 3. However, when repetitive load loads transmitted from a seated user are generated, wedges 4 and 5, which take a wedge- A load load is generated and the wedges 4 and 5 are finely rotated from the first and second bearing members 2b and 3b to cause a bowing phenomenon in the seatback.

In order to prevent the jogging of the seat back, protruding pieces are provided on one side of the outer circumferential surface so as to be supported by the inner circumferential surface of the second gear member connected to the seat back, And a clutch disk having left and right fastening portions on one side of the inner circumferential surface so as to be inserted into the space, the engagement force of the inner circumferential surface and the protruding piece for the shutting-off is released by the operation force applied to the rotary socket in the locked state, On the other hand, there is a anti-skid type recliner (Patent No. 1184190) configured to prevent the left and right wedge from being pushed by the pushing force of the left and right wedges in the locked state,

When the rotary socket is operated by the operating force, the clutch disk is rotated before the protruding piece of the clutch disk, which is rotated by interlocking operation force, is released from the engagement recessed portion formed on the inner circumferential surface for blocking the shutoff, There is a problem that when the protruding piece of the disc is in contact with the protruding portion of the disc, the protruding portion of the protruding disc is overrun with the protruding portion of the protruding portion. Therefore, there is a problem that noise is generated due to the clutch disc during operation of the rotating socket. There was a difficult issue.

In addition, there is a problem in that abrasion and damage are caused in the protruding piece of the clutch disc when the operation is performed for a long period of time, and the back-up of the seat back occurs again.

Registered Patent Registration No. 10-1184190 (2012.09.13) Registered Patent Registration No. 10-1283186 (2013.07.01) Korean Registered Patent Publication No. 10-1003718 (December 17, 2010) Korean Registered Patent Publication No. 10-1143811 (April 24, 2012)

An object of the present invention is to provide a small round recliner capable of stably controlling the angle of the seat back without generating noise and preventing the phenomenon that the seat back is slowly pushed due to the reduction of the frictional force of the left and right wedges, .

Yet another object of the present invention is to provide a small round recliner having improved durability by applying a fixing portion to a component cam other than a wedge directly fixed and operated by a wedging method to indirectly receive a force when an external force is generated.

The present invention relates to an electric motor comprising: a lever socket which is axially coupled to a drive shaft; an external gear inserted into the lever socket so as to be rotatable so that a recessed groove is formed along an inner circumferential surface of the accommodating portion, A cam provided with a cam protrusion fitted in a slide hole formed in the jam preventing disk and a cam provided between the burring portion of the cam and the external gear, A left wedge and a right wedge which are spaced apart from each other so as to be located in the accommodating portion, and a gear accommodating portion in which an external gear is eccentrically engaged, and a center accommodating hole connected to the gear accommodating portion, And a wedge spring which is connected to the left wedge and the right wedge so that when the lever socket is rotated, After the locking of the protrusion groove and the fixing protrusion is released, the rotational force of the lever socket is transmitted to the cam by the left wedge and the right wedge, so that the circumscribed tooth So that the gear is eccentrically rotated.

The present invention is capable of pursuing stability and excellent quality because the jamming of the left and right wedges generated in the locking state is blocked by the anti-jamming disc, and it is possible to ensure reliable locking rigidity particularly when applied to a manually operated recliner .

The present invention is capable of completely blocking the jamming phenomenon only by the addition of the thin plate type anti-jamming disk, and it is advantageous in that a large design change of the existing recliner is not required and the production cost can be reduced.

The present invention applies a fixing portion to a component cam other than a wedge directly fixed and operated by a wedging method to indirectly receive a force when an external force is generated, thereby improving durability against repetitive external forces such as repeated loads.

In the present invention, the rotational force of the lever socket is first applied to the anti-jamming disk to release the locking of the anti-jamming disk by detaching the locking protrusion of the anti-jamming disk from the recessed groove of the external gear receiving portion and then transmitted to the left wedge or the right wedge Since the external gear is rotated, no noise is generated due to the contact between the fixing protrusion and the recessed groove.

According to the present invention, since the wedge support is brought into close contact with the wedge protrusion of the lever socket by the elastic portion of the anti-jamming disk, the lever socket is operated only by the operation force of the elastic portion or more than the elastic force of the elastic portion, the operation of the lever socket by the fine operation force is prevented, And noise due to occurrence of assembling gap between other parts of the socket is prevented.

Fig. 1 is an example showing a disassembled structure of a conventional recliner
Fig. 2 is an example showing a locking state of a conventional recliner
3 is an illustration showing an exploded perspective configuration of the present invention
4 is another example showing the decomposed strabismus configuration of the present invention
5 is an exemplary view showing the configuration of the anti-jamming disk according to the present invention.
FIG. 6 is an exemplary view showing the operating state of the present invention
7 is an exemplary view showing a load transfer process according to the cam of the present invention

FIG. 3 is a view showing an exploded perspective configuration of the present invention, FIG. 4 is a view showing another embodiment of the decomposed perspective configuration of the present invention, FIG. 5 is an exemplary view showing the configuration of the anti- FIG. 6 is an exemplary view showing an operating state of the present invention, and FIG. 7 is an exemplary view showing a load transfer process according to the cam of the present invention,

The present invention relates to a dial type recliner in which an angle of a seat back is adjusted by a manual operation;

The recliner 100 includes a lever socket 10 which is axially coupled to a drive shaft and a lever socket 10 which is inserted in such a manner that the lever socket 10 is rotatable and which has a corrugated groove 23 along the inner circumferential surface of the accommodating portion 22 A circumferential gear 20 having an outer tooth gap 24 formed along an outer circumferential surface thereof and a circumferential gear 20 which is inserted into the accommodating portion 22 of the external gear and which is formed by a resilient force of the elastic portion 34, The cam protrusion 41 is inserted into the slide hole 36 formed in the slide protrusion disc 30 and the cam protrusion 35 is inserted into the slide protrusion 35 of the cam protrusion 35, A left wedge 50 and a right wedge 60 that are inserted and installed in the accommodating portion 22 so as to be positioned between the cam 40 and the burring portion 21 of the external gear 20, And a center receiving hole 72 into which the level socket 10 and the cam 40 are inserted is formed so as to be connected to the gear receiving portion 71, 70) , It is configured to include a wedge spring 80 is installed connected to the left wedges 50 and right wedges 60,

When the lever socket is rotated, the anti-jamming disk compresses the elastic part by the rotational force of the lever socket, and is linearly moved to release the locking of the uneven groove and the fixing protrusion. Then, the rotational force of the lever socket is transmitted to the cam by the left wedge and the right wedge So that the external gear is eccentrically rotated in the gear receiving portion of the internal gear to adjust the inclination angle of the seat back.

The recliner 100 includes a lever socket 10 having a pair of wedge protrusions 12 and 13 protruded from a fixed plate 11 axially coupled to a drive shaft (not shown) and formed on an outer peripheral surface thereof, A burr portion 21 to be rotatably inserted into the accommodating portion 22 is formed at the center of the accommodating portion 22 and a corrugated groove 23 is formed along the inner circumferential surface of the accommodating portion 22, The external gear 20 formed with the car 24 is inserted into the receiving portion 22 of the external gear so as to be positioned between the fixed plate 11 of the lever socket and the external gear 20, A pair of support rods 32 and 33 protruding from the center support hole 31 to be brought into contact with the wedge projections 12 and 13 of the lever socket and protruding therefrom, Prevention protrusion 30 inserted into the recessed groove 23 of the accommodating portion 22 by elastic force and engaged with the center protrusion 35 and the center support hole 31 of the anti- A cam 40 in which the cam protrusion 41 is fitted in the slide hole 36 formed in the anti-jamming disk 30, and a cam 40 which is located between the cam 40 and the burring portion 21 of the external gear 20 Left and right wedges 50 and 60 symmetrically inserted and installed in the accommodating portion 22 and a gear accommodating portion 71 into which the external gear 24 of the external gear is eccentrically inserted, A central receiving hole 72 into which the cam 40 is inserted is connected to the gear receiving portion 71 and an internal gear 73 is formed on the inner peripheral surface of the gear receiving portion 71, And a wedge spring (80) provided to connect the left and right wedges (50, 60) so as to separate the left wedge (50) and the right wedge (60) away from each other,

The recliner 100 constructed as described above is prevented from being jammed by the contact between the burring portion 21 and the central support hole 31 and the contact between the slide hole 36 and the cam protrusion 41 when the lever socket 10 is rotated, Preventing disk 30 compresses the elastic portion 34 and linearly moves so that the locking protrusion 35 of the anti-jamming disk is released from the recessed groove 23 of the external gear so that the locking of the anti-jamming disk is released, The rotational force of the wedge 10 is transmitted to the left wedge 50 and the right wedge 60.

The left and right wedges 50 and 60 are collectively referred to as a left wedge 50 and a right wedge 60 for the sake of convenience of explanation. The wedge protrusions 12 and 13 have a left wedge protrusion 12 and a right wedge protrusion 12, (13) together.

The lever socket 10 is rotatably coupled to a driving shaft not shown in the figure by a spline shaft so that the left and right wedges 50 and 60 and the wedge spring 80 can be stably mounted. And a pair of wedge protrusions 12 and 13 protruding from and supported by the left and right wedges 50 and 60 and the cam 40 are formed on one side of the fixing plate 11.

The external gear 20 is formed with an external gear 24 on its outer circumference and a receiving portion 22 having a predetermined depth formed on one side of the external gear 20 to receive the anti- 22, a burr portion 21 is formed so as to be rotatably inserted into the center of the lever socket 10. As shown in Fig.

An uneven groove 23 is formed in the inner circumferential surface of the accommodating portion 22 to receive the fixing protrusion 35 formed on the anti-jamming disc. The uneven groove 23 is formed in the inner surface of the receiving portion 22, ) Are formed along the inner circumferential surface of the accommodating portion (22). Also, the recessed groove 23 may be formed to have a corrugated shape.

As shown in Figs. 3 to 5, the anti-jamming disk 30 is provided to prevent the jamming of the seatback due to cyclic loading, A center support hole 31 formed in the center of the body 37 to receive and receive the burring portion 21 of the external gear, A pair of protrusion supports 32 and 33 protruding from one side of the body so as to be in contact with a pair of wedge protrusions 12 and 13 formed on the lever socket and a fixing protrusion 35 around the center support hole 31, An elastic part 34 formed on the body 37 so as to be positioned on the opposite side of the body 37 and elastically supporting the body 37 by one side contacting the convex part of the recessed groove 23, And a slide hole 36 formed in the body 37 so as to be spaced apart from the cam protrusion 41 and into which the cam protrusion 41 is inserted.

5, a center support hole 31 of an elongated hole type is formed at the center of the body, and a longitudinal center line of the body passing through the center support hole 31 The fixing projections 35 are symmetrically formed on the left and right sides of the upper end of the body 37 with respect to the center line X so that the fixing projections 35 are positioned on the center line X, And a resilient portion 34 is formed at the lower end of the body 37. A pair of elastic members 34 are formed on one side of the body so as to be positioned between the central support hole 31 and the elastic portion 34 33 are protruded so as to be symmetrical with respect to the center line X. The protrusions 32,

When the body 37 of the anti-friction disc 30 is moved in the direction P in which the elastic portion 34 is compressed by the rotation of the lever socket 10, the center support hole 31 is engaged with the external gear 20 The body 37 of the anti-jamming disc can be linearly moved around the burring portion 21 while one side, that is, the left contact line 31a or the right contact line 31b is in contact with the outer peripheral surface 25 of the burring portion formed on the burring portion And is formed at the center of the body 37. That is, the center support hole 31 is formed to have a long hole shape so as to be long in the vertical direction of the body 37.

The rotation support force of the lever socket 10 is transmitted to the left wedge projection 12 and the right wedge projection 13 of the lever socket when the lever socket 10 rotates, A pair of protrusion supports 32 and 33 protrude from one side of the body corresponding to the protrusions 12 and 13. The protrusion supports 32 and 33 may be formed integrally with the body or integrally formed with the body by bending by cutting and bending of the body.

The other end 38 of the elastic part 34 is integrally connected to the body 37 so that the other end 38 is spaced apart from the body 37 by a predetermined distance so as to be contacted with the convex- Respectively. That is, the elastic part 34 is extended from the body 37, and the other side end 38, which is a free end, is contacted and supported by the convex groove 23 with the elastic force.

The slide holes 36 are inserted into the cam protrusions 41 so as to be in contact with both ends of the cam protrusions 41 so as to be elongated at one side of the body and the rotational force of the lever sockets is transmitted to the protrusions 32, The cam protrusion 41 is moved in a sliding manner.

The slide hole 36 functions to restrain the cam protrusion 41 so that the left and right wedges 50 and 60 are deformed in the external force direction by the repeated load applied to the seat back in the state where the seat back is locked Movement of the cam protrusion 41 and the slide hole 36 does not cause a pushing-back phenomenon of the seat back.

When the wresting disk 30 is inserted into the receiving portion of the external gear, the wedge supports 32 and 33 are pressed against the wedge protrusions 12 of the lever socket by the elastic force of the elastic portion 34 formed at the lower end of the body And the fixing protrusion 35 formed on the upper end of the body is inserted into the recessed portion of the recessed groove 23 so that its position is locked (locked) in the receiving portion 22 of the external gear.

In other words, the anti-jamming disk 30 has the free end of the fixing protrusion 35 and the elastic portion and the other end 38 of which is inserted or fixed in the recessed groove 23 formed in the receiving portion 22 of the external gear, The other part of the body is provided in the receiving part so as to be spaced apart from the recessed groove 23 of the receiving part.

6, when the lever socket 10 is rotated in the A direction (clockwise direction), the left wedge projection 12 of the lever socket is engaged with the left projection support 32, When the rotational force of the lever socket is transmitted to the left protrusion support 32 of the anti-jamming disk, the slide hole is contacted and supported on the right side of the cam protrusion 41, The center support hole is abutted and supported on the left outer circumferential surface of the burring portion 21. Since the rotational force of the lever socket is continuously transmitted in the state where the right side of the cam protrusion, the slide hole, the right side of the burring portion and the center support hole are in contact with each other, The body 37 of the disk is linearly moved in the direction of compressing the elastic portion 34 without being rotated in the direction A to separate the fixing projections 35 coupled to the corrugated convex portions 23, Is released.

When the lever socket 10 is rotated in the counterclockwise direction (opposite to the direction A), the left contact line 31a of the slider hole, the burring portion right side, and the center support hole of the anti-jamming disk 30, Since the rotational force of the lever socket is continuously transmitted in a state of being supported by the contact, the body 37 of the anti-jamming disk is linearly moved in the direction of compressing the elastic part 34, The locking protrusion 35 is disengaged to release the locking of the anti-jamming disc.

The cam 40 keeps the clearance S from the burring portion 21 of the external gear to the bearing 74 pressed into the center receiving hole of the internal gear constantly and the anti- And is formed in an arch shape so as to contact the left wedge 50 and the right wedge 60 and has a slide hole (not shown) formed on one side surface of the anti- 31) are protruded.

7 (a), when the load (moment) is applied, the left and right wedges are pressed so that the left wedge or the right wedge is separated from the gap S so that the load transmitted by the left wedge or the right wedge is transmitted to the one side of the bearing 74 in a biased manner so that the durability is lowered,

7 (b), the cam 40 is provided between the left and right wedges 50, 60 and the bearing 74 so that the left and right wedges 50, The left wedge and the right wedge come into close contact with the inner circumferential surface of the cam even if the left wedge or the right wedge is pushed irregularly in the clearance S by the pressure applied to the left and right wedges 50 and 60. Therefore, Is uniformly dispersed in the bearing (74).

The cam 40 having such a configuration is configured such that the inner circumferential surface 42 is in contact with the left and right wedges 50 and 60 and the outer circumferential surface 43 is in contact with the bearing 74 in which the central receiving hole is press- (41) is inserted into the slide hole (36) of the anti-friction disc inserted in the receiving portion of the external gear.

The cam protrusion 41 of the cam 40 is located in the middle of the slide hole when the fixing protrusion 35 of the anti-jamming disc is inserted and fixed into the recessed groove 23 by the elastic force of the elastic portion 34 And when the fixing protrusion 35 is separated from the recessed groove 23, it is positioned on the upper side in the slide hole.

The left wedge 50 and the right wedge 60 are inserted between the cam 40 and the burring portion 21 of the external gear so as to be symmetrically opposed to each other so that the external gear 20 and the internal gear 70 and is held in contact with the wedge projections 12, 13 formed in the lever socket 10 to interlock with the rotation of the lever socket in the left or right direction to rotate the external gear 20 interlockingly.

That is, the left and right wedges 50 and 60 are configured so as to have a left-right symmetrical state by the wedge spring in the locking state of the seat back, and also to have the distance D between the left and right wedges 50, When the lever socket is rotated to unlock the recliner, the rotation of the lever socket and the elastic force of the wedge spring cause the left wedge 50 and the right side The distance D between the wedges 60 becomes narrower and widened. In the design theory, it is necessary to rotate while keeping the D interval constant. However, in reality, due to dimensional deviations and concentricity of parts, So that the distance D is changed) and is moved in the same direction as the rotation direction of the lever socket.

The wedge spring 80 is provided to connect the opposed faces 51 and 61 of the left wedge 50 and the right wedge 60 so that the left wedge 50 and the right wedge 60 are spaced apart from each other The outer circumferential surface 43 of the cam is brought into close contact with the bearing 74 press-fitted into the center receiving hole 72 of the internal gear to generate frictional force between the burring portion 21 of the external gear and the bearing 74, Thereby maintaining the locked state of the gear 20 and the internal gear 70.

The operation of the left wedge 50 and the right wedge 60 and the left and right wedges 50 and 60 by the wedge spring 80 are described in detail in Patent Registration No. 1184190 filed and filed by the applicant of the present invention Therefore, a description thereof will be omitted.

The internal gear 70 has a gear receiving portion 71 in which an external gear 20 is eccentrically inserted into one side of the internal gear 70. The external gear 24 of the external gear along the inner peripheral surface of the gear receiving portion 71, A center receiving hole 72 is formed on the other side of the gear receiving portion 71 so as to be connected to the gear receiving portion 71 and a lever socket 10 is formed in the center receiving hole 72, And a bearing 74 into which the cam 40 is inserted and brought into contact.

The recliner 100 constructed as described above has an internal gear 70 which is engaged with a seat back (not shown) and in which an internal gear 73 is formed and an external gear 70 in which the external gear 24 is formed, The circumscribed gear 20 is moved in the inner state by the left and right wedges 50 and 60 and the cam 40 in the assembled state by different gear sizes (gear teeth numbers) and different pitch circle diameters (PCD) The eccentric engagement with the gear 70 is maintained and the lock state or the unlock state for the recliner operation is maintained.

The internal gear 70 is connected to the seat back and the external gear 20 is connected to the seat cushion so that the internal gear 70 is connected to the seat cushion and the external gear 20 is connected to the seat back. Lt; / RTI >

3 and 4, reference numeral 90 denotes a cover, and 75 denotes a wedge cover. The wedge cover 75 is fixed to the other side of the internal gear 70 in which the center receiving hole 72 is formed by a push- And is press-fitted.

Hereinafter, the unlocking process of the present invention will be described.

6 shows an example of the operating state of the present invention. When the lever socket 10 is rotated in the direction of the arrow A in conjunction with the rotation of the drive shaft, the left wedge projection 12 of the lever socket 10, By moving the left support 32 of the anti-jamming disc in the direction A and moving the body 37 of the anti-jamming disc in the direction of compressing the elastic portion 34, 35 are separated from each other to release the locking of the anti-jamming disc.

That is, the rotational force of the lever socket is transmitted to the anti-jamming disk first, and the rotational force R transmitted to the anti-jamming disk is the sum of the horizontal force H and the vertical force V, When the rotational force of the lever socket is transmitted to the anti-jamming disc, the anti-jamming disc is linearly moved by the vertical force V and the locking of the anti-jamming disc is prevented Is released.

When the lever socket 10 is continuously rotated in the A direction in the state where the locking of the anti-jamming disk is released, the right wedge projection 13 of the lever socket 10 moves the right wedge 60 to the eccentric displacement portion S1, When the right wedge 60 is moved toward the center of the eccentric displacement portion S1, the frictional force between the outer circumferential surface of the right wedge 60 and the cam inner circumferential surface 42 is released do.

The left wedge 50 supported by the right wedge 60 and the wedge spring 80 is also engaged in the direction of the arrow A as the right wedge 60 is continuously rotated in the direction of the arrow A by the lever socket 10. [ The left wedge 50 is moved in the direction A away from the center of the eccentric displacement portion S1 so as to apply pressure to the cam 40 so that the gap between the outer peripheral surface 43 of the cam and the bearing 74 A frictional force is generated in the lever socket 10 by the frictional force, and the external gear 20 is interlocked and rotated when the lever socket 10 is rotated. That is, the cams 40 are moved together when the left and right wedges 50 and 60 are moved.

As described above, due to the rotation of the pair of left and right wedges 50 and 60, the external gear 20 maintains the eccentric state from the internal gear 70, and rotates the seat back to one side while reducing the rotation speed by the gear ratio.

Further, if the vestibule lever socket 10 is rotated in the direction opposite to the A direction on the drive shaft, the operation is reverse to that described above, and the seat back is rotated in the opposite direction.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined in the appended claims and their equivalents. Of course, such modifications are within the scope of the claims.

(10): Lever socket (11): Fixing plate
(12): Left wedge projection (13): Right wedge projection
(20): external gear (21): burring portion
(22): receiving portion (23): uneven groove
(24): External tooth roller (25): outer peripheral surface
(30): anti-jamming disc (31): central support hole
(31a): left contact line (31b): right contact line
(32): Left wedge support (33): Right wedge support
(34): Elastic portion (35): Fixing projection
(36): Slide hole (37): Body
(38): the other end (40): cam
(41): cam protrusion (42): inner circumferential surface
(43): outer peripheral surface (50): left wedge
(60): right wedge (51,61): facing face
(70): internal gear (71): gear receiving portion
(72): central receiving hole (73): internal gear
(74): Bearing (80): Wedge spring
(100): Recliner

Claims (4)

A lever socket (10) axially coupled to the drive shaft;
A circumscribed gear (20) inserted into the lever socket (10) so as to be rotatable, a recessed groove (23) formed along the inner circumferential surface of the accommodating portion (22), and an outer tooth gap (24) formed along the outer circumferential surface;
Preventing disk 30 inserted into the accommodating portion 22 of the external gear and inserted and engaged with the fixing protrusion 35 into the recessed groove 23 of the accommodating portion 22 by the elastic force of the elastic portion 34, ;
A cam 40 on which the cam protrusion 41 is fitted to the slide hole 36 formed in the anti-jamming disk 30;
A left wedge 50 and a right wedge 60 which are inserted and installed in the accommodating portion 22 so as to be positioned between the cam 40 and the burring portion 21 of the external gear 20;
A center receiving hole 72 into which the level socket 10 and the cam 40 are inserted and which is connected to the gear receiving portion 71 and has a gear receiving portion 71 to which the external gear 20 is eccentrically engaged, An internal gear (70) formed thereon;
And a wedge spring (80) connected to the left wedge (50) and the right wedge (60)
When the lever socket is rotated, the anti-jamming disk compresses the elastic part by the rotational force of the lever socket, and is linearly moved to release the locking of the uneven groove and the fixing protrusion. Then, the rotational force of the lever socket is transmitted to the cam by the left wedge and the right wedge So that the external gear is eccentrically rotated in the gear receiving portion of the internal gear.
The method of claim 1,
The external gear 20 is formed with an external gear 24 on its outer circumference and a receiving portion 22 having a predetermined depth formed on one side of the external gear 20 to receive the anti- 22, a burring portion 21 is inserted into the center of the lever socket 10 so as to be rotatable,
Wherein a recessed groove (23) is formed in the inner circumferential surface of the accommodating portion (22) to which the fixing protrusion (35) of the anti - slip disc is inserted.
The method of claim 1,
The anti-jamming disk 30 includes a body 37 having a plurality of fixing protrusions 35 fitted in concave portions of the recessed and recessed grooves 23 formed in the external gear, A center support hole 31 formed to be in the center and received and received by the burring portion 21 of the external gear and a pair of wedge projections 12 and 13 formed on the lever socket, A pair of protrusion supports 32 and 33 and a body 37 extending from the protrusion 35 of the protrusion groove 23 so as to be positioned on the opposite side of the fixing protrusion 35, And a slide hole (36) formed in the body (37) so as to be spaced apart from the central support hole (31) and in which the cam protrusion (41) is inserted and brought into contact with the elastic support (34) Small round recliner.
The method of claim 1,
The cam 40 is formed in an arch shape so that the inner circumferential surface 42 is in contact with the left wedge 50 and the right wedge 60 and the outer circumferential surface 43 is in contact with the bearing 74 press- , And a cam protrusion (41) protruding from a side surface of the sliding protrusion (41) is fitted in the slide hole (31) of the anti-jamming disc (30).

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