KR20140001651A - Recliner of vehicle seet - Google Patents

Abstract

The present invention relates to a recliner of a vehicle seat which includes: a plate holder in which a rim part is formed to protrude toward one side from the edge and a plurality of guide protrusion parts are formed on one side; a sector tooth which is connected to one side of the plate holder and has inner gear teeth formed on the inner circumferential surface; an operating cam which has an axial hole in the center to be coupled with a rotating shaft and is arranged between the plate holder and the sector tooth to be able to rotate; a plurality of pole teeth which are arranged radially on the outer side of the operating cam, are guided between the guide protrusion parts, and have outer gear teeth corresponding to the inner gear teeth; a cam spring which is combined between the operating cam and the plate holder and supports the operating cam elastically; and a compression part which is for preventing a gap between the pole tooth and the guide protrusion part by pressing the pole tooth toward the guide protrusion part during locking of the recliner. Because the pole tooth is pressed to the side of the guide protrusion part by the compression part during locking of the recliner, a gap is not formed between the pole tooth and the guide protrusion part and thus a clearance in a seat bag can be reduced.

Description

Recliner of car seat {RECLINER OF VEHICLE SEET}

The present invention relates to a recliner of a vehicle seat, and more particularly, to a recliner of a vehicle seat capable of adjusting the angle of the seat back installed to be rotated at a predetermined angle with respect to the seat cushion.

Generally, the vehicle is provided with a seat so that the driver or the driver can sit comfortably. The seat is composed of a seat cushion that supports the load of the occupant, and is slidably installed on the floor surface of the room so as to be slidable back and forth, and a seatback that is rotatably installed at an angle with respect to the seat cushion.

The driver or the rider adjusts the front and rear positions of the seat by pushing or pushing the seat cushion forward and rearward in accordance with the body shape of the driver and the rider so as to adjust the angle of the seat back with respect to the seat cushion so as to be the most comfortable posture when sitting on the seat.

As described above, the seatback whose angle is adjusted with respect to the seat cushion is installed in a state in which rotation is possible through a hinge structure, and can be mutually switched to an unlocking state that can be rotated in a locked state where the angle is fixed to the seat cushion side. A recliner is installed for the function of maintaining and switching the locked-unlocked state. In other words, the recliner adjusts the angle of the seat back with respect to the seat cushion according to the body shape or convenience of the driver or the rider.

Such a recliner is disclosed in Korean Patent Publication No. 10-2011-0135535, Figure 1 shows an example of a conventional recliner of a vehicle seat.

As shown, the recliner of a conventional vehicle seat is a plate holder (1) coupled to the seat cushion frame, a sector tooth (2) coupled to the seat back frame and the inner gear (not shown) formed on the inner side in the circumferential direction. ), And an operating lever (not shown) is largely composed of a rotating shaft 3, an operating cam 4, a cam spring 5, a pole tooth 6, and a cover bracket 7 coupled to one end.

A plurality of guide protrusions 1a are formed on one surface of the plate holder 1 to guide the flow of the pole tooth 6, and the support protrusions supporting both sides of the pole tooth 6 between the guide protrusions 1a. (1b) is formed.

The actuating cam 4, the cam spring 5 and the pole tooth 6 are installed in the space between the plate holder 1 and the sector tooth 2, of which the pole tooth 6 The outer gear 6a meshing with the inner gear 2a is formed on the outer circumferential surface.

The cover bracket 7 assembles the plate holder 1 and the sector tooth 2 together while covering the outer circumferential surface of the plate holder 1 and the sector tooth 2, and the plate holder 1 and the sector tooth ( 2) Keep the space between.

The actuating cam 4 is configured to be actuated by the rotary shaft 3 coupled to the central shaft hole 4a to pressurize the plurality of pole teeth 6.

On one support protrusion 1b of the actuating cam 4 and the plurality of support protrusions 1b, locking protrusions 1c and 4a on which both ends of the cam springs 5 are formed are respectively formed.

In addition, the cam spring 5 maintains the actuating cam 4 in an actuated state, while the actuating cam 4 is locked, the outer gear 6a of the pole tooth 6 and the inner side of the sector tooth 2. The gears 2a provide elasticity so as to keep the bite state with each other. That is, one end of the cam spring (5) is caught by the engaging projection (4a) of the operation cam 4, the other end is configured to be engaged by the engaging projection (1c) of the support projection (1b).

Therefore, by operating the recliner operating lever, when the rotating shaft 3 rotates, the operating cam 4 rotates, and when the operating cam 4 rotates, the pole tooth 6 flows around the guide protrusion 1a. As a result, the outer gear 6a of the pole tooth 6 which is engaged with the inner gear of the sector tooth 2 is released.

Here, the pole tooth 6 flows while being supported by the flow guide protrusion 1a formed on one surface of the plate holder 1 when the operation cam 4 rotates. Then, the pole tooth 6 is engaged with the inner gear of the sector tooth 2 by the outer gear 6a of the pole tooth 6 by the support protrusions 1b which are formed at a predetermined distance apart from both sides of the guide protrusion 1b. It will remain intact.

Then, the sector tooth 2 is rotatable with respect to the plate holder 1, and thus the seat back frame coupled with the sector tooth 2 is in a rotatable state. It is possible.

Then, when the recliner operation lever that has been operated is released, the actuating cam 4 is rotated in the opposite direction by the restoring force of the cam spring 5, whereby the pole tooth 6 flows in the opposite direction and the pole tooth 6 The outer gear 6a of the vehicle is engaged with the inner gear of the sector gear 2 again, so that the seat back of the vehicle can continuously maintain the state where the angle adjustment is completed.

However, such a recliner of a vehicle seat according to the related art is such that when the outer gear 6a of the pole tooth 6 is engaged or disengaged from the inner gear of the sector gear 2, the pole tooth 6 is allowed to flow. To this end, a gap must exist between the pole tooth 6 and the flow guide protrusion 1a and between the pole tooth 6 and the support protrusion 1b, which creates a gap in the seatback, resulting in dissatisfaction with product quality. There was a problem appearing.

Accordingly, the present invention has been made in order to solve the above problems, to press the pole to flow between the support protrusions formed at a predetermined interval spaced on one surface of the plate holder during the locking action of the recliner toward the support protrusion on one side. It is an object of the present invention to provide a recliner for a vehicle seat which can improve the play of the seatback by not generating a gap between the fault tooth and the support protrusion.

In addition, both sides of the pole tooth and both sides of the support protrusion may be formed in a straight line so that both sides of the support protrusion and both sides of the pole tooth may be polished, and thus the reclining of the vehicle seat which may facilitate the dimension management of the pole tooth and the support protrusion. Another purpose is to provide a liner.

The present invention for achieving the above object is a plate holder formed with a rim protruding to one side at the edge, a plurality of guide protrusions formed on one side, and coupled to one side of the plate holder, the inner circumferential surface inside A sector tooth having a gear formed therein, a shaft hole having a rotating shaft coupled to the center thereof, and an actuating cam disposed rotatably between the plate holder and the sector tooth, and disposed radially outside the actuating cam and between the guide protrusions. A plurality of pole teeth guided to the outer gear corresponding to the inner gear, and coupled between the actuating cam and the plate holder to support the actuating cam and the spring and the recliner when the cam spring and the recliner are locked. Pressing toward the guide projection part prevents a gap between the pole tooth and the guide projection part. And a pressing portion for supporting the pressing portion, wherein the pressing portion includes a fitting groove formed on one side of the guide protrusion, a pressing member inserted into and coupled to the fitting groove, and one side surface of the pole tooth facing one side of the guide protrusion. It is preferable to include a support groove which is formed in the groove formed so as to become wider toward the inner gear of the sector tooth.

In addition, the pressing member is coupled to the fitting groove, it is preferable that a portion of the guide protrusion is configured to protrude more than one side.

In addition, the pressing member is in close contact with one side of the guide protrusion is preferably formed in a circular cross-section so that the rotation when the poltus reciprocating movement.

In addition, it is preferable that both sides of the pole tooth and both side portions of the guide protrusion for guiding the pole tooth are formed in a straight line to be in close contact with each other.

According to the present invention, when the recliner is locked, the poltus is in close contact with the side surface of the guide protrusion by the pressurizing portion, so that a gap does not occur between the poltus and the guide protrusion, thereby improving the play of the seat back.

In addition, since each side of the contact between the pole tooth and the guide protrusion in close contact with each other is formed in a straight plane, it is possible to polish the side of the pole tooth or the guide protrusion, there is an effect that the dimensional management can be convenient.

In addition, by combining the cam spring so as to be located in the center of the recliner, there is an effect that can prevent the unnecessary torque generated in the locking function due to interference with the cam spring or eccentric load is generated in the other components when the operation cam rotates.

1 is an exploded perspective view showing a recliner of a conventional vehicle seat.
Fig. 2 is a plan sectional view of Fig. 1; Fig.
Figure 3 is an exploded perspective view showing a recliner of a vehicle seat according to an embodiment of the present invention.
Fig. 4 is a plan sectional view of Fig. 3; Fig.
5 is a partial cutaway perspective view of FIG. 3.
6 and 7 are cross-sectional views showing a locking and unlocking state in the recliner of FIG.
FIG. 8 is a detailed view of portion A of FIG. 7; FIG.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. In this process, the thicknesses of the lines and the sizes of the components shown in the drawings may be exaggerated for clarity and convenience of explanation. In addition, the terms described below are terms defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator. Therefore, definitions of these terms should be made based on the contents throughout this specification.

For reference, Figure 3 is an exploded perspective view showing a recliner of a vehicle seat according to an embodiment of the present invention, Figure 4 is a cross-sectional view of Figure 3, Figure 5 is a partial cutaway perspective view of FIG. 6 and 7 are planar cross-sectional views showing a locking and unlocking state in the recliner of FIG. 3, and FIG. 8 is a detailed view of portion A of FIG.

As shown, the recliner 100 of the vehicle seat according to an embodiment of the present invention, the plate holder 200, sector tooth 300, operation cam 400, a plurality of pole tooth 600, cam It includes a spring 700, the pressing portion 800.

First, the plate holder 200 is installed in the seat cushion frame, the through hole 210 through which the rotating shaft is inserted in the center is formed. In addition, a plurality of guide protrusions 220 are radially protruded on one surface of the plate holder 200, and are formed at regular intervals. And, the edge of the plate holder 200 is bent to one side to form a rim 230, by the rim 230 one side of the operation cam 400, a plurality of pole tooth 600, the cam described later It forms a space in which the spring 700 is installed.

The guide protrusions 220 are formed in plural, but in one embodiment of the present invention, three guide protrusions 220 are formed at 120 degree intervals. The plurality of guide protrusions 220 guide the flow of a plurality of pole teeth 600 to be described later during the operation of the recliner 100, and are fixed together with the rotating shaft 500 rotated by the operation of the recliner operating lever. It serves to guide the rotation of the operation cam 400 is rotated at an angle.

The guide protrusion 220 is formed in a fan shape so that both sides guide the reciprocating movement of the pole tooth 600, and the lower surface is formed with a curved surface 222 to guide the rotation of the operation cam 400 to be described later.

In addition, one of the guide protrusions 220 of the plurality of guide protrusions 220 is formed with a protrusion protrusion 222 is applied to the end of the cam spring 700 to be described later.

In addition, the sector tooth 300 is installed in a seat back frame (not shown), the inner gear 310 is formed along the circumferential direction on the inner circumferential surface of one surface facing the plate holder 200, one surface of the plate holder 200 Inserted into the joint. And, in the center of the sector tooth 300, when coupled to the plate holder 200, a through hole 320 is formed in communication with the through hole 210 of the plate holder 200, the rotating shaft is inserted.

Here, the rotation shaft 500 is coupled to one end of the recliner operation lever that the passenger operates to adjust the angle of the seat back. And, the rotation shaft 500 is coupled to the shaft hole 410 formed in the center of the operation cam 400 to be described later, is coupled to rotate with the operation cam 400 when the rotation shaft 500 is rotated.

The actuating cam 400 is disposed between the plate holder 200 and the sector tooth 300, and a shaft hole 410 through which the rotating shaft 500 is inserted to rotate together with the rotating shaft 500 is formed in the center thereof.

Here, the cross section of the shaft hole 410 and the rotating shaft 500 is formed in the same shape of the rotating shaft 500 and the shaft hole 410 so that the rotating shaft 500 does not run in the shaft hole 410, that is, except the circular shape , Squares, triangles, splines and the like.

In addition, the boss hole 410 is formed in the center of the operation cam 400 to form a space for the cam spring 700 to be installed and operated between the sector tooth 300 and the operation cam 400. Protrudes toward the sector tooth 300 in the periphery thereof.

Here, the outer circumferential surface of the actuating cam 400 is a radius corresponding to the radius of curvature of the curved surfaces 221 so that the actuating cam 400 is rotated so as to be sandwiched between the curved surfaces 221 of the plurality of guide protrusions 220. Is formed with.

In addition, a plurality of first coupling protrusions 430 having a ring shape protrude from the outer circumference of the operation cam 400. It is formed at equal intervals. And, as shown in Figure 4, the plurality of first coupling protrusion 430 is formed to protrude in a counterclockwise direction, between the first coupling protrusion 430 and the outer circumferential surface of the operation cam 400 to be described later ( The first coupling groove 431 into which the second coupling protrusion 620 of 600 is fitted is formed.

And, the boss portion 420 of the operation cam 400 is formed with a locking groove 440 is coupled to one end of the cam spring 700 to be described later. A plurality of poles 600 are disposed radially outside the operation cam 400.

The plurality of pole teeth 600 are coupled between the plurality of guide protrusions 220 to reciprocate by the rotation of the operation cam 400 to engage or separate the inner gear 310 of the sector tooth 300 by reclamation. The locking and unlocking action of the liner 100 is performed.

On the outer circumferential surface of one end of the pole tooth 600, an outer gear 610 meshed with the inner gear 310 is formed, and the other end of the first coupling protrusion of the operation cam 400 when the recliner 100 is operated. A second coupling protrusion 620 is caught and coupled to the 430 is formed. The second coupling protrusion 620 is protruded in the circumferential direction so as to be fitted to the first coupling groove 431 by being caught by the first coupling protrusion 430, but is formed in a clockwise direction.

Accordingly, the second coupling groove 630 is formed by the second coupling protrusion 620, and the first coupling protrusion 430 is fitted into the second coupling groove 630.

In addition, a support protrusion 640 protruding downward is formed at one end of the other end of the pole tooth 600, and is supported by the first coupling protrusion 430 of the operation cam 400 when the recliner 100 is locked. The protrusion 640 is pressed to maintain the outer gear 610 of the fault tooth 600 engaged with the inner gear of the sector tooth 300.

The cam spring 700 is formed in a spiral shape, the inner end portion 710 is bent toward the center, and the outer end portion 720 is bent toward the outside.

Accordingly, the cam spring 700 has one end 710 fitted into the locking groove 440 of the operation cam 400, and the other end 720 is caught by the guide protrusion 220. Therefore, when the cam spring 700 operates the operating lever of the recliner 100, the operating cam 400 accumulates elastic force when the operating cam 400 is rotated and wound or released to release the operation of the operating lever. It provides a restoring force to reverse the rotation.

Meanwhile, the pressing unit 800 presses the poltus 600 toward the guide protrusion 220 when the recliner 100 is locked to prevent a gap between the pole 600 and the guide protrusion 220. do.

The pressing portion 800 is a fitting groove 810 formed on one side of the guide protrusion 220, the pressing member 820 to be pivotally fitted to the fitting groove 810, and one side of the guide protrusion 220 It is formed on one side of the opposite pole tooth 600, and includes a support groove 830 formed so as to become wider toward the inner gear 310 of the sector tooth (300).

The pressing member 820 is coupled to the fitting groove 810, the outer peripheral surface portion is configured to protrude to one side of the guide protrusion 220. In addition, the pressing member 820 is in close contact with one side of the guide protrusion 220 is formed in a circular cross-section so as to rotate when the pole tooth 600 is reciprocated.

The support groove 830 is formed in an inverted triangular shape toward the upper side as shown in FIG. 4 so that the pressing member 820 is located under the support groove 830 when the recliner 100 is locked so that the poles 600 can be opened. Pressing toward the guide protrusion 220 provided on the opposite side of the pressing member 820 is to prevent the gap between the pole 600 and the guide protrusion 220 is generated. Then, when the unlocking action of the recliner 100, the pressure member 820 moves upward from the bottom of the support groove 830 to move smoothly in the direction of the rotation axis 500, the pressing member 820 Pressurizing 600 is released.

In addition, both sides of the podus 600 and the both sides of the guide protrusion 220 for guiding the poltus 600, the poles 600 on the side of the guide protrusion 220 in the space between the guide protrusions 220 It is formed in a straight line (plane) to be guided and reciprocated in the contacted state. As such, when both sides of the pole tooth 600 and both sides of the guide protrusion 220 are formed in a straight line (flat), the pole tooth 600 is stiffly sandwiched between the guide protrusions 220 when the part is manufactured and thus the pole tooth 600 is formed. When the reciprocating movement of) is not desired, both sides of the pole tooth 600 or both sides of the guide protrusion 220 may be polished to smoothly reciprocate the pole tooth 600. That is, since the poltus 600 or the guide protrusion 220 can be polished, the dimension management of the parts can be facilitated.

The operation of the recliner of another vehicle seat according to one embodiment of the present invention as described above will be briefly described.

First, the seatback of the seat is typically in a fixed state at an angle, that is, in the locked state of the recliner 100. That is, the outer gear 610 of the pole tooth 600 is engaged with the inner gear 310 of the sector tooth 300 fixed to the seat back frame, so that the sector tooth 300 is not rotated so as to lock the recliner. Will be.

The occupant seated on the seat in the locked state of the recliner 100 manipulates the recliner operating lever to adjust the inclination of the seat back in order to ease the riding posture. Then, the rotation shaft 500 provided with the recliner operating lever rotates at a predetermined angle. Then, the operation cam 400 coupled to the rotating shaft 500 is rotated at a predetermined angle.

At this time, the operation cam 400 is rotated in the counterclockwise direction in Figure 6, the first coupling protrusion 430 of the operation cam 400 is fitted into the second coupling groove 630, the second coupling protrusion 620. ) Is pulled in the direction of the rotation axis 500.

Then, as the pole tooth 600 moves in the direction of the rotation axis 500, the outer gear 610 of the pole tooth 600 engaged with the inner gear 310 of the sector tooth 300 is inside the sector tooth 300. The recliner 100 is in an unlocked state while being released from the gear 310.

At this time, the occupant is to adjust the inclination angle of the seat back. Of course, the occupant must maintain the operation of the recliner operating lever when adjusting the inclination angle of the seatback.

Afterwards, the occupant releases the operation of the operating lever when the inclination angle adjustment of the seatback is completed. Then, the actuating cam 400 in the state of FIG. 7 is rotated in the clockwise direction by the restoring force of the cam spring 700 so that the first coupling protrusion 430 presses the other end of the pole tooth 600.

At this time, the pole tooth 600 is in close contact with the guide protrusion 220 provided on the right side in FIG. 7 by the pressing unit 800 and the outer gear 610 is engaged with the inner gear 310 of the sector tooth 300. . The support protrusion 640 of the pole tooth 600 is maintained by the recliner as it is supported by the first coupling protrusion 430 of the operation cam 400.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It is understandable. Therefore, the true technical protection scope of the present invention will be defined by the claims below.

100: recliner
200: plate holder 210: through hole
220: guide protrusion 230: rim
300: sector tooth 310: inner gear
320: through hole
400: operation cam 410: shaft hole
420: boss portion 430: first coupling protrusion
440: hanging groove
500:
600: Paulus 610: outer gear
620: second coupling protrusion 630: second coupling groove
640: support protrusion
700: Cam Spring
800: pressing unit 810: fitting groove
820: pressure member 830: support groove

Claims (4)

A rim portion protruding to one side at an edge thereof, and a plate holder having a plurality of guide protrusions formed at one side thereof;
A sector tooth coupled to one side of the plate holder and having an inner gear formed on an inner circumferential surface thereof;
An actuating cam rotatably disposed between the plate holder and the sector tooth;
A plurality of pole teeth to which movement is guided by the guide protrusion and having an outer gear corresponding to the inner gear;
A cam spring coupled between the actuating cam and the plate holder to elastically support the actuating cam; And
And a pressing unit for pressing the pole tooth toward the guide protrusion when the recliner is locked.
The pressing portion
Fitting grooves formed on one side of the guide protrusion,
A pressing member fitted to the fitting groove and coupled;
A support groove formed on one side of the pole tooth opposite to one side of the guide protrusion and formed to gradually increase in width toward an inner gear of the sector tooth;
Recliner of a vehicle seat comprising a. The method of claim 1,
The pressing member
Recliner coupled to the fitting groove, a part of which is configured to protrude more than one side of the guide protrusion. The method of claim 1,
The pressing member
Recliner of the vehicle seat, characterized in that the cross section is formed in a circular shape so as to be in close contact with the one side of the guide projection to rotate when the pole reciprocating movement. The method of claim 1,
Both sides of the pole tooth and both side portions of the guide protrusion for guiding the pole tooth is formed in a straight line to be in close contact with each other.

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