Seat reclining apparatus for vehicle
A technology for adjusting devices and seats, which is applied to vehicle seats, special positions of vehicles, movable seats, etc., and can solve problems such as noise
Inactive Publication Date: 2013-06-12
AISIN SEIKI KK
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- Abstract
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Problems solved by technology
[0005] In the above-mentioned references 1 and 2, the inclination angle of the seat back is adjusted by the seat reclining device, and after a long time has elapsed since the last time the inclination angle was adjusted, that is, after the corresponding positions of the first and second wedges After the circumferential contact surface of the upper arm maintains frictional contact with the inner circumferential surface of the second circumferential portion of the upper arm for a long time, when the seat back reclining device is operated again to readjust the inclination angle of the seat back, it may only be necessary for the seat reclining device Noise at initial stage of rerun
Method used
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[0025]The vehicle seat reclining device 10 of the first embodiment will be described below with reference to the description of the drawings. Such as figure 1 As shown, the seat reclining device 10 adjusts the inclination angle of the seat back 20 relative to the seat cushion 30 . In the first embodiment, seat reclining devices 10 having an approximately symmetrical configuration are attached to both sides in the width direction of the seat 3 . The seat reclining devices 10 are connected to each other via an interlock shaft 8 to be described below. A drive unit 5 including a motor 51 is attached to one of the seat reclining devices 10 . The reclining device 10 including the motor 51 cooperates with another reclining device 10 not including the drive unit 5 . The operation and configuration of the seat reclining device 10 having the drive unit 5 will be mainly described below.
[0026] Such as Figure 1 to Figure 4 As shown, the seat reclining device 10 includes a lower a...
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A seat reclining apparatus (10) for a vehicle includes a first arm (1, 11) arranged at a seat cushion (30), a second arm (2) arranged at a seat back (20), an internal gear (12) formed at the first arm (1, 11), an external gear (22) formed at the second arm (2) and engaging with the internal gear (12), a first circumferential portion (13) formed coaxially with the internal gear (12), a second circumferential portion (23, 25) formed coaxially with the external gear (22), first and second wedge members (7a, 7b, 37a) accommodated in an accommodating space formed between the first and second circumferential portions (13, 23, 25), a spring (9) arranged between the first and second wedge members (7a, 7b, 37a) and biasing the first and second wedge members (7a, 7b, 37a), a drive shaft (6) rotating around a rotation axis of either one of the first and second arms (1, 11, 2), and a retention groove (75, 35) retaining a lubricant (G), formed on the circumferential contact surface (70a, 36b) of each of the first and second wedge members (7a, 7b, 37a), and extending along a direction of the rotation axis.
Description
technical field [0001] The invention relates to a seat inclination adjusting device for a vehicle, which adjusts the inclination angle of the seat back of the vehicle. Background technique [0002] JP2001-340154A (hereinafter referred to as reference 1, see paragraphs 0010 to 0013, Figures 2 to 4 ) discloses a known vehicle seat reclining device attached to a seat cushion. The seat reclining device includes a lower arm attached to the seat cushion, an upper arm attached to the seat back, first and second wedges, a spring arranged between the first and second wedges, and a driving first and the drive shaft for the second wedge to rotate relative to the lower arm. The lower arm includes an internal gear and a first circumferential portion formed coaxially with the internal gear and having an outer circumferential surface. The outer circumferential surface of the first circumferential portion has a smaller diameter. The upper arm includes an external gear and a second circu...
Claims
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IPC IPC(8): B60N2/22
CPCB60N2/0232B60N2/2254B60N2/2252B60N2/02246
Inventor 成田雅史北野崇
Owner AISIN SEIKI KK