JPH02141229U

JPH02141229U -

Info

Publication number: JPH02141229U
Application number: JP5087689U
Authority: JP
Priority date: 1989-04-28
Filing date: 1989-04-28
Publication date: 1990-11-27

Description

[Brief explanation of drawings]

第１図は本考案の一例の分解斜視図、第２図は
ロツク状態の側面図、第３図は第２図のＣ−Ｃ断
面図、第４図はロツク解除状態の側面図、第５図
は第４図のＤ−Ｄ断面図、第６図は本考案の両リ
クライニング装置を用いたシート組立図である。１……ロアアーム、２……ロアアーム側歯車（
第１の歯列）、３……アツパアーム、４……アツ
パアーム側歯車（第２の歯列）、５……シヤフト
、６……シヤフト（歯車の係脱制御機構）、７…
…レバー、１３……引つ張りコイルバネ、１７…
…中心軸連結棒（中心軸部材）。 Fig. 1 is an exploded perspective view of an example of the present invention, Fig. 2 is a side view in the locked state, Fig. 3 is a sectional view taken along line C-C in Fig. 2, Fig. 4 is a side view in the unlocked state, and Fig. 5 is a side view in the unlocked state. The figure is a sectional view taken along the line DD in FIG. 4, and FIG. 6 is an assembly view of the seat using both reclining devices of the present invention. 1...Lower arm, 2...Lower arm side gear (
(first tooth row), 3... Atsupah arm, 4... Atsupa arm side gear (second tooth row), 5... Shaft, 6... Shaft (gear engagement/disengagement control mechanism), 7...
...Lever, 13...Tension coil spring, 17...
...Central shaft connecting rod (central shaft member).

Claims

[Claims for Utility Model Registration] (1) A lower arm that does not rotate with respect to a central axis and is provided on the seat cushion, and a lower arm that is rotatable with respect to the central axis and can move forward and backward with respect to the lower arm along the central axis. an upper arm provided on the seat back; a first tooth row formed integrally with the lower arm and located on a circumference centered on the central axis; A second row of teeth meshes with and disengages from the teeth by moving forward and backward with respect to the lower arm, and normally the upper arm is moved forward with respect to the lower arm so that the second row of teeth meshes with the first row of teeth, and the lever is rotated. In the seat reclining device, the seat reclining device includes a control mechanism for retracting the upper arm with respect to the lower arm in response to an operation and disengaging the second tooth from the first tooth, and a tension coil spring that pulls the lower arm and the upper arm. A reclining device characterized in that the coil spring always biases the seat in a direction that causes the seat to recline. (2) The seat reclining device is arranged at both rear ends of the seat cushion, one seat reclining device is provided with the lower arm on the seat cushion side, and the other seat reclining device is provided with the lower arm on the seat cushion side. The atsupah arm is provided, and one seat reclining device is provided with a lever that is rotatably held on the central shaft, and a central shaft member that transmits the rotational sliding of the lever to the other seat reclining device, and the rotation of the lever is By moving the central shaft member in a direction parallel to the central axis, the two upper arms and the central shaft member are slid in a direction parallel to the central axis.
A reclining device on both sides, which belongs to item (1) of the utility model registration request, characterized by engaging and disengaging a set of gears.