JP2010274738A - Reclining device for vehicle seat - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a reclining device for a vehicle seat, having a rattle restraining mechanism effectively restraining rattle from a slider rail. <P>SOLUTION: The reclining device 1 for a vehicle seat is provided for angle adjustment of a seat back to a vehicle body, and includes: a rail 2 fitted onto the vehicle body; a slider 3 slidably mounted on the rail 2; a lock mechanism 4 for locking the slider 3 against the rail 2 to be releasable at a desired position; and a coupling mechanism 5 for coupling the slider 3 to the seat back, and further includes a rattle restraining mechanism 6 for restraining rattle between the slider 3 and the rail 2. The rattle restraining mechanism 6 has a rattle restraining member 6a movably mounted on the slider 3, and an energizing member 6b for energizing the rattle restraining member 6a. The rattle restraining member 6a energized against the energizing member 6b passes through a hole 3e formed in the slider 3 to push the rail 2. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a vehicle seat reclining device for adjusting the angle of a seat back with respect to a vehicle body.

  A conventional reclining device includes, for example, a rail that is mounted on a vehicle body, a slider that is slidably attached to the rail, a lock mechanism that releasably locks the slider at a desired position, and a slider and a seat back. It has a coupling mechanism for coupling. Therefore, the angle of the seat back can be adjusted by sliding the slider with respect to the rail and locking it at a desired position (see Patent Document 1).

  Conventionally, a slide device for slidably mounting a seat on a floor surface is also known. The slide device includes a lower rail attached to the floor, an upper rail slidably attached to the lower rail, and a lock mechanism that releasably locks the upper rail to the lower rail. The slide device of Patent Document 2 is provided with a rattling suppressing mechanism for reducing the amount of rattling of the upper rail with respect to the lower rail.

JP 2008-94227 A Japanese Patent Laid-Open No. 10-1000075

  However, the conventional reclining device is not provided with a mechanism for reducing the amount that the slider rattles against the rail. Therefore, there is a possibility that the seat cushion rattles against the vehicle body when the slider rattles against the rail. Therefore, it is conceivable to provide the reclining device with the conventional rattling suppression mechanism provided in the slide device.

  However, since the conventional rattling suppression mechanism is provided in the lower rail, there is a problem that it is not easy to increase the size of the rattling suppression mechanism so as to sufficiently suppress rattling. Alternatively, there is a problem that it is necessary to enlarge the lower rail when the rattling mechanism is enlarged so as to sufficiently suppress rattling. Then, this invention makes it a subject to provide the reclining apparatus for vehicle seats which has the rattling suppression mechanism which can be made small effectively by rattling with respect to the rail of a slider.

  In order to solve the above-mentioned problems, the present invention is a vehicle seat reclining device having the configuration described in each claim. According to the first aspect of the present invention, the rattling suppressing mechanism for reducing the rattling of the slider with respect to the rail is provided. The rattling suppression mechanism includes a rattling suppression member that is movably attached to the slider and a biasing member that biases the rattling suppression member, and the rattling suppression member that is biased by the biasing member. Passes through the hole formed in the slider and pushes the rail.

  Therefore, rattling of the slider can be suppressed by the rattling suppression member that is biased by the biasing member. Moreover, since the rattling suppression member penetrates the slider and comes into contact with the rail, it can be easily made larger than, for example, a configuration provided between the slider and the rail. Therefore, the size and shape of the rattling suppressing member can be determined so as to sufficiently suppress the rattling of the rail and the slider without increasing the size of the rail and the slider.

  According to the second aspect of the present invention, both the rail and the slider are substantially plate-shaped and are juxtaposed in the thickness direction. The upper and lower edges of one member of both members are formed with latching portions that slidably latch on the upper and lower edges of the other member. Therefore, since the reclining device is formed by the plate-like rail and the slider, it can be configured relatively small. Further, the rail and the slider can be assembled so as to be slidable stably by the upper and lower latching portions.

  According to the third aspect of the present invention, the rail has the rail main body facing the slider. The rail main body has a convex region extending in the slider sliding direction and extending toward the slider side, and a concave region farther from the slider and extending in the sliding direction than the convex region. A rattling restraining member that is rotatably attached to the slider is disposed so as to be able to contact the concave region. Therefore, the rattling suppressing member has a larger diameter than that of the form in contact with the convex region, and therefore, the torque for pushing the rail is increased. Therefore, rattling against the rail of the slider can be effectively suppressed by the rattling suppression member.

  According to the fourth aspect of the present invention, the lock mechanism includes a lock member that is movably attached to the slider and a biasing member that biases the lock member. A lock member biased by the biasing member passes through a hole formed in the slider and is locked at a desired position of the rail. The rattling suppression member with the lock member abuts on or engages with the rail at a position shifted vertically. Therefore, the rattling suppression member with the lock member can be brought close to the sliding direction. Thereby, a reclining apparatus can be comprised small.

It is a partial perspective view of a vehicle. It is a partial perspective view of a reclining device. It is a partial front view of a reclining apparatus. It is a partial top view of a reclining device. FIG. 5 is a cross-sectional view taken along line VV in FIG. 3. FIG. 6 is a cross-sectional view taken along the line VI-VI in FIG. 3. It is the VII-VII sectional view taken on the line of FIG. It is a partial front view of the reclining apparatus in other embodiment. It is a partial top view of the reclining apparatus in other embodiment. FIG. 9 is a cross-sectional view taken along line XX in FIG. 8.

  An embodiment of the present invention will be described with reference to FIGS. As shown in FIG. 1, the vehicle 10 is an automobile, and a front row of seats 13 and a rear row of seats 11 are mounted on a floor 12. The rear row of seats 11 includes a seat cushion 11a and a seat back 11b. The lower end of the seat back 11b is rotatably attached to the seat cushion 11a or the vehicle body at the rear portion of the seat cushion 11a. A reclining device 1 for positioning the seat back 11b at a desired angle is provided between the seat back 11b and the vehicle body.

  As shown in FIGS. 1 and 2, the reclining device 1 has a rail 2 provided on the vehicle body, a slider 3 slidably attached to the rail 2, and a lock mechanism 4 for releasably locking the rail 2 and the slider 3. is doing. The slider 3 is provided with a rattling suppressing mechanism 6 for reducing the rattling of the slider 3 with respect to the rail 2. A connecting mechanism 5 is provided between the slider 3 and the seat back 11b for detachably connecting them.

  As shown in FIGS. 1 and 2, the rail 2 is substantially plate-shaped and has a concave region 2 a at the height center position and a convex region 2 b at the vertical position. The recessed area 2a extends in the sliding direction of the slider 3, and mounting holes 2c are formed at both ends. The rail 2 is attached to the vehicle body (vehicle body) by the bolt inserted through the attachment hole 2c, and the rail 2 extends along the tilting locus of the seat back 11b. In the recessed area 2a, a plurality of lock holes 2d are formed at predetermined intervals in the sliding direction. The convex region 2 b protrudes from the upper and lower edges of the concave region 2 a to the slider 3 side (seat back 11 b side) and extends in the sliding direction of the slider 3.

  The slider 3 is substantially plate-shaped as shown in FIGS. 2 and 7, and has a slider body 3a and a bracket 3c. The slider main body 3a has a hooking portion 3b on the upper and lower edges. The latching portion 3 b extends from the slider body 3 a to the back surface of the convex region 2 b of the rail 2, and is slidably latched on the upper and lower edges of the rail 2. As shown in FIGS. 3 and 6, the bracket 3c has a bracket main body 3c1 attached to the surface of the slider 3, and an attachment piece 3c2 protruding from the both ends in the sliding direction of the bracket main body 3c1 to the front side (left side in FIG. 6). . A pin 3f is attached to the attachment piece 3c2, and a rattling suppression member 6a is rotatably attached to the pin 3f.

  As shown in FIGS. 3 and 7, a pair of attachment pieces 3c3 projecting to the back side (right side in FIG. 7) is formed in the lower portion of the bracket body 3c1. A pin 4b is inserted into the pair of attachment pieces 3c3, and the lock member 4a of the lock mechanism 4 is rotatably attached to the pin 4b. The lock member 4a has a pair of projecting pieces 4a3 projecting to the back side at both lower end edges, and the projecting pieces 4a3 are rotatably attached to the pins 4b.

  As shown in FIGS. 3 and 7, the lock member 4 a has a lock claw 4 a 1 extending to the back side at the upper end portion. A biasing member 4c that is attached to the pin 4b and biases the lock member 4a is provided below the lock member 4a. The lock member 4 a is urged by the urging member 4 c so that the lock claw 4 a 1 passes through the hole 3 d formed in the slider 3 and enters the desired lock hole 2 d formed in the rail 2. As a result, the slider 3 cannot slide with respect to the rail 2 (locked state).

  As shown in FIG. 2, an attachment piece 4a4 extending to the front side is formed at the lower end of the lock member 4a. One end of a cable 4d is connected to the mounting piece 4a4, and the other end of the cable 4d is connected to the operation lever 14 shown in FIG. The operation lever 14 is attached to the lower side of the side portion of the seat cushion 11a so as to be tiltable. Therefore, by tilting the operation lever 14, the lock member 4a rotates against the urging force of the urging member 4c by the cable 4d (see FIG. 7). As a result, the lock claw 4a1 is removed from the lock hole 2d, and the slider 3 can slide with respect to the rail 2 (unlocked state).

  The rattling suppression mechanism 6 has a pair of rattling suppression members 6a as shown in FIGS. The rattling suppression member 6a has a main body 6a1 rotatably attached to the pin 3f and a pressing part 6a3 extending from the main body 6a1 to the back side. A latching piece 6a2 extending downward is formed on the outer edge of the main body 6a1. One end of the urging member 6b is hooked to the hooking piece 6a2. The urging member 6b is attached to the outer periphery of the pin 3f to urge the rattling suppressing member 6a, and the other end is hooked to the pin 3f.

  As shown in FIGS. 2 and 5, the pressing portion 6 a 3 of the rattling suppression member 6 a extends through the hole 3 e formed in the slider 3 toward the rail 2. Each rattling restraining member 6a is biased by each biasing member 6b and rotates around the pin 3f. And each pressing part 6a3 is urged | biased in the direction away from the other pressing part 6a3, and pushes the surface of the recessed area | region 2a of the rail 2. As shown in FIG. As a result, the slider 3 is less likely to rattle with respect to the rail 2 in the thickness direction.

  As shown in FIGS. 4 and 5, a force receiving piece 6a4 is formed on the inner edge of the body portion 6a1 of the rattling restraining member 6a. The lock member 4a has a force applying piece 4a2 that projects toward the force receiving piece 6a4. Therefore, when the lock member 4a is tilted in the unlocking direction, the force applying piece 4a2 presses the force receiving piece 6a4. As a result, the rattling suppressing member 6a rotates against the biasing member 6b, and the pressing portion 6a3 is separated from the rail 2. Therefore, at the same time that the lock mechanism 4 is unlocked, the rattling suppressing member 6a is separated from the rail 2. Thus, the slider 3 can be slid relative to the rail 2 without being obstructed by the rattling restraining member 6a.

  As shown in FIGS. 1 and 2, the coupling mechanism 5 includes a striker 5 a provided on the slider 3 and a back coupling body 5 b provided on the seat back 11 b. As shown in FIGS. 4 and 6, the striker 5a has front and rear portions 5a1 and 5a3 extending from the slider 3, and a bridging portion 5a2 connecting the front ends of the front and rear portions 5a1 and 5a3. As shown in FIG. 1, the back connector 5b has a main body 5b1 provided inside the seat back 11b and a hook 5b2 rotatably attached to the main body 5b1.

  The back connector 5b is connected to the seat back 11b so as to be movable in the vertical direction by a predetermined amount. Specifically, it has a pin protruding from the back connector 5b and a long hole formed in the seat back 11b, and the pin is movably inserted into the long hole. As a result, the back connector 5b can move up and down with respect to the seat back 11b simultaneously with the seat back 11b while performing an arc motion around the rotation center of the seat back 11b. Therefore, the back connector 5b can move in a vertical direction with respect to the seat back 11b following the slider 3 that moves linearly.

  As shown in FIG. 1, one end of a cable 5c is connected to the hook 5b2, and the other end of the cable 5c is connected to an operation band 15 protruding from the upper part of the seat cushion 11a. The hook 5b2 is urged by an urging member (not shown) when the seat cushion 11a is raised, and is releasably locked to the front portion 5a1 of the striker 5a. By pulling the operating band 15, the hook 5b2 rotates against the urging force of the urging member, and the hook 5b2 is detached from the striker 5a. Accordingly, the seat back 11b can be rotated with respect to the seat cushion 11a, and the seat back 11b can be brought down on the seat cushion 11a.

  As described above, the reclining device 1 has the rattling suppression mechanism 6 as shown in FIG. The rattling suppression mechanism 6 includes a rattling suppression member 6 a and an urging member 6 b, and the rattling suppression member 6 a urged by the urging member 6 b passes through a hole 3 e formed in the slider 3. Push it through the rail 2.

  Therefore, rattling of the slider 3 with respect to the rail 2 can be suppressed by the rattling suppressing member 6a urged by the urging member 6b. Moreover, since the rattling suppression member 6a penetrates the slider 3 and comes into contact with the rail 2, it can be easily made larger than, for example, a configuration provided between the slider and the rail. Therefore, the size and shape of the rattling suppressing member 6a can be determined so as to sufficiently suppress the rattling of the rail 2 and the slider 3 without increasing the rail 2 and the slider 3.

  Moreover, the rail 2 and the slider 3 are substantially plate-shaped as shown in FIGS. The upper and lower edges of the slider 3 are formed with latching portions 3b that are slidably latched on the upper and lower edges of the rail 2. Therefore, since the reclining device 1 is formed by the plate-like rail 2 and the slider 3, it can be configured relatively small. Moreover, the rail 2 and the slider 3 can be assembled | attached so that a slide can be carried out stably by the upper and lower latching | locking parts 3b.

  Moreover, the rail 2 has a rail main-body part which faces the slider 3 as shown in FIG. The rail body has a convex region 2b and a concave region 2a. A rattling restraining member 6a attached to the slider 3 so as to be rotatable is disposed so as to be able to contact the concave region 2a. Therefore, the rattling restraining member 6a has a larger diameter than the form in contact with the convex region 2b, so that the torque for pushing the rail 2 is increased. Therefore, rattling against the rail 2 of the slider 3 can be effectively suppressed by the rattling suppression member 6a.

  The lock mechanism 4 includes a lock member 4a and an urging member 4c as shown in FIGS. The lock member 4a urged by the urging member 4c passes through the hole 3d formed in the slider 3 and is locked at a desired position of the rail 2. The rattling suppression member 6a with the lock member 4a abuts or engages with the rail 2 at a position shifted vertically. Therefore, the rattling suppressing member 6a with the lock member 4a can be brought close to the sliding direction. Thereby, the reclining apparatus 1 can be comprised small.

  Further, as shown in FIGS. 4 and 5, the rattling suppression mechanism 6 has rattling suppression members 6 a at both end positions in the sliding direction of the slider 3. Therefore, the inclination of the slider 3 relative to the rail 2 in the plate thickness direction can be effectively suppressed by the pair of rattling suppressing members 6a.

(Other embodiments)
The present invention is not limited to the above-described embodiment, and may be the following form.
(1) For example, instead of the rattling suppression mechanism 6 of the above embodiment, a configuration having the rattling suppression mechanism 7 shown in FIGS.

  As shown in FIG. 10, the rattling suppression mechanism 7 has a pair of rattling suppression members 7a and one urging member 7b. The pair of rattling restraining members 7a are rotatably attached by one pin 3g. As shown in FIGS. 8 and 9, the pin 3 g is attached to a bridging portion 3 c 4 that connects a pair of left and right attachment pieces 3 c 2 of the slider 3. Each rattling suppressing member 7a has a pressing portion 7a3 extending from the main body portion 7a1 to the back side (the upper side in the figure) and a latching piece 7a2 extending downward from the outer edge of the main body portion 7a1. Each end of the urging member 7b is locked to each latching piece 7a2.

  As shown in FIG. 10, the pressing portion 7 a 3 extends through the hole 3 e of the slider 3 and extends to the rail 2. The pair of rattling restraining members 7a is urged by one urging member 7b, and the pressing portion 7a3 presses the surface of the concave region 2a of the rail 2. As shown in FIGS. 9 and 10, a force receiving piece 7a4 is formed on the inner edge of the main body portion 7a1 of the rattling suppressing member 7a. The force receiving piece 7a4 is pushed by the force applying piece 4a2 when the lock member 4a tilts in the unlocking direction. As a result, the rattling suppression member 7a rotates against the biasing member 7b, and the pressing portion 7a3 is separated from the rail 2.

(2) The rail 2 shown in FIGS. 2 and 4 is substantially plate-shaped. However, the rail has a thickness in the thickness direction, for example, the rail has a folded portion that extends from the upper and lower edges to the front side and is folded back from the tip, and a part of the slider can slide between these upper and lower folded portions. The form etc. which are installed in may be sufficient.
(3) The slider 3 shown in FIG. 6 has the latching | locking part 3b latched on the upper-lower-end edge of the rail 2 so that sliding is possible. However, the slider may have a latching portion that can be slidably latched on either the upper or lower latching portion or another portion of the rail. Or the latch part which latches to the upper-lower-end edge of a slider, or another part may be formed in both or one of the upper and lower edges of a rail.
(4) The rattling suppressing member 6a shown in FIG. 5 and the lock member 4a shown in FIG. However, one or both of these may be slidably attached to the slider.
(5) The seat 11 shown in FIG. 1 is mounted on an automobile. However, it may be mounted on other vehicles, aircraft or ships.

DESCRIPTION OF SYMBOLS 1 ... Reclining device 2 ... Rail 2a ... Concave region 2b ... Convex region 3 ... Slider 3a ... Slider main body 3c ... Bracket 3d, 3e ... Hole 4 ... Lock mechanism 4a ... Lock member 4a1 ... Lock claw 4c, 6b, 7b ... Energizing Member 5 ... Connecting mechanism 5a ... Striker 5b ... Back connector 5b2 ... Hooks 6, 7 ... rattling restraining mechanisms 6a, 7a ... rattling restraining members 6a3, 7a3 ... pressing part 10 ... vehicle 11, 13 ... seat 11a ... Seat cushion 11b ... Seat back

Claims (4)

In order to adjust the angle of the seat back with respect to the vehicle body, a rail mounted on the vehicle body, a slider slidably mounted on the rail, and the slider can be released at a desired position with respect to the rail A vehicle seat reclining device having a lock mechanism for locking, and a connecting mechanism for connecting the slider and the seat back,
A rattling restraining mechanism that reduces rattling of the slider with respect to the rail;
The rattling suppression mechanism includes a rattling suppression member that is movably attached to the slider and a biasing member that biases the rattling suppression member, and the biasing suppression mechanism is biased by the biasing member. A reclining device for a vehicle seat for a vehicle seat, wherein a rattling suppression member passes through a hole formed in the slider and pushes the rail. The vehicle seat reclining device according to claim 1,
Both the rail and the slider are substantially plate-shaped and are juxtaposed in the thickness direction,
A reclining device for a vehicle seat, in which upper and lower end edges of one member of both members are formed with hooking portions that are slidably hooked on upper and lower end edges of another member. The vehicle seat reclining device according to claim 1 or 2,
The rail has a rail body portion facing the slider,
The rail body has a convex area extending in the sliding direction of the slider and projecting toward the slider, and a concave area extending away from the slider and extending in the sliding direction than the convex area. A reclining device for a vehicle seat, wherein a ratchet restraining member attached rotatably is arranged so as to be in contact with the concave region. The vehicle seat reclining device according to any one of claims 1 to 3,
The lock mechanism includes a lock member that is movably attached to the slider and a biasing member that biases the lock member, and the lock member biased by the biasing member has a hole formed in the slider. Pass through and lock into the desired position of the rail,
The vehicle seat reclining device, wherein the locking member and the rattling restraining member abut or engage with the rail at a position shifted vertically.

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