JPH02143049U

JPH02143049U -

Info

Publication number: JPH02143049U
Application number: JP5372289U
Authority: JP
Priority date: 1989-05-09
Filing date: 1989-05-09
Publication date: 1990-12-04

Description

[Brief explanation of drawings]

第１図は、本考案に関連する従来品の平面図で
ある。第１表は本考案における各実施態様の三種
類のストツパー機構の組み合わせの一覧表を示し
た。第２図乃至第５図は本考案の各実施態様のス
トツパー機構の位置を示す平面図である。第６図
乃至第１０図は本考案のラチエツトの作用動作を
順に示したＡ−Ａ断面図である。１……座枠取付腕、３……ハウジング、４……
主関節対、５……背枠取付腕、６，６′……ラチ
エツト歯車面、７……ラチエツト歯、８……副関
節対、９……爪、１０……カム板、１１……爪軸
、１２……主軸、１３……閉角制限二次押部、１
４……閉角制限二次受部、１５……閉角制限一次
押部、１６……閉角制限一次受部、１７……噛合
解除カム押部、１８……噛合解除カム受部。 FIG. 1 is a plan view of a conventional product related to the present invention. Table 1 shows a list of combinations of three types of stopper mechanisms for each embodiment of the present invention. 2 to 5 are plan views showing the position of the stopper mechanism of each embodiment of the present invention. FIGS. 6 to 10 are sectional views taken along the line A-A showing the operation of the ratchet of the present invention. 1...Seat frame mounting arm, 3...Housing, 4...
Main joint pair, 5...Back frame mounting arm, 6, 6'...Ratchet gear surface, 7...Ratchet tooth, 8...Subjoint pair, 9...Claw, 10...Cam plate, 11...Claw Shaft, 12... Main shaft, 13... Closing angle limit secondary push part, 1
4... Closing angle limiting secondary receiving part, 15... Closing angle limiting primary pushing part, 16... Closing angle limiting primary receiving part, 17... Engaging release cam pushing part, 18... Engaging releasing cam receiving part.

補正平１．７．２８図面の簡単な説明を次のように補正する。明細書第１３頁第１３行の「第１表は本考案に
おける各実施態様の三種類のストツパー機構の組
み合わせの一覧表を示した。」を削除する。Amendment 1.7.28 The brief description of the drawing is amended as follows. Delete "Table 1 shows a list of combinations of three types of stopper mechanisms of each embodiment of the present invention" on page 13, line 13 of the specification.

Claims

[Claims for Utility Model Registration] (1) A main joint pair 4 consisting of a housing 3 having a seat frame mounting arm 1 and bent in a U-shape so that two surfaces 2 and 2' face each other; In the housing, there is a back frame mounting arm 5 which is bent into a substantially U-shape so that the two surfaces 6 and 6' face each other, and a plurality of ratchet teeth 7 are attached to a part of the outer periphery of the arm. The secondary joint pair 8 consists of the ratchet gear surfaces 6 and 6', and the two main and secondary joint pairs 4 and 8 are formed by meshing with the ratchet teeth 7.
The pawl 9 has four elements: a pawl 9 arranged to prevent rotation in the opening angle direction, and a cam plate 10 that controls the disengagement of the pawl 9 between the two ratchet gear surfaces 6 and 6'. The housing 3 is rotatably supported by a pawl shaft 11, and the cam plate 10 and the secondary joint pair 8 are connected to the main joint pair 4.
In the ratchet, which is rotatably supported by the main shaft 12, when the joint pairs 4 and 8 are closed beyond the limit, the cam plate 10, which is interlocked with the sub-joint pair 8, is closed near the part a in the closing angle direction by any means. Corner restriction secondary push part 13
A, and a closing angle limiting secondary receiving part 14A for preventing the cam plate 10 from rotating at an acute closing angle near the part A on the back surface of the arm base of the main joint pair 4. (2) A pair of main joints 4 consisting of a housing 3 which has a seat frame mounting arm 1 and is bent in a U-shape so that two faces 2 and 2' face each other, and a back frame inside the housing. Ratchet gear faces 6 and 6' have a mounting arm 5, are bent into a U-shape so that the two faces 6 and 6' face each other, and have a plurality of ratchet teeth 7 on a part of the outer periphery. A secondary joint pair 8 consisting of
The pawl 9 has four elements: a pawl 9 arranged to prevent rotation in the opening angle direction, and a cam plate 10 that controls the disengagement of the pawl 9 between the two ratchet gear surfaces 6 and 6'. The housing 3 is rotatably supported by a pawl shaft 11, and the cam plate 10 and the secondary joint pair 8 are connected to the main joint pair 4.
In the ratchet which is rotatably supported by the main shaft 12, a closing angle limiting primary push part 15B is provided near the B part on the inside of the arm base of the accessory joint pair 8, and a closing angle limiting primary receiving part 16b is provided in the B part of the cam plate 10. , a of the cam plate 10
Closed angle limiting secondary push part 13a near the part, closing angle limiting secondary receiving part 14A near part A on the back side of the arm base of main joint pair 4, and near part C on the inside of the arm base of secondary joint pair 8. Push the engagement release cam pusher 17C and the cam plate 10.
The ratchet is provided with a disengagement cam receiving portion 18c near the c portion. (3) A main joint pair 4 consisting of a housing 3 which has a seat frame mounting arm 1 and is bent into a U-shape so that its two faces 2 and 2' face each other, and a back frame inside the housing. Ratchet gear faces 6 and 6' have a mounting arm 5, are bent into a U-shape so that the two faces 6 and 6' face each other, and have a plurality of ratchet teeth 7 on a part of the outer periphery. A secondary joint pair 8 consisting of
The pawl 9 has four elements: a pawl 9 arranged to prevent rotation in the opening angle direction, and a cam plate 10 that controls the disengagement of the pawl 9 between the two ratchet gear surfaces 6 and 6'. The housing 3 is rotatably supported by a pawl shaft 11, and the cam plate 10 and the secondary joint pair 8 are connected to the main joint pair 4.
In the ratchet which is rotatably supported by the main shaft 12, a closing angle limiting primary push part 15B is provided near the B part on the inside of the arm base of the accessory joint pair 8, and a closing angle limiting primary receiving part 16b is provided in the B part of the cam plate 10. , a of the cam plate 10
Closed angle limiting secondary pushing part 13a near the part, closing angle limiting secondary receiving part 14A near part A on the back side of the arm root of main joint pair 4, and near part E of the outer end of the arm root of secondary joint pair 8. and the cam plate 1.
0. A ratchet is provided with a disengagement cam receiving portion 18e near the e portion of the ratchet. (4) A main joint pair 4 consisting of a housing 3 which has a seat frame mounting arm 1 and is bent in a U-shape so that its two faces 2 and 2' face each other, and a back frame inside the housing. Ratchet gear faces 6 and 6' have a mounting arm 5, are bent into a U-shape so that the two faces 6 and 6' face each other, and have a plurality of ratchet teeth 7 on a part of the outer periphery. A secondary joint pair 8 consisting of
The pawl 9 has four elements: a pawl 9 arranged to prevent rotation in the opening angle direction, and a cam plate 10 that controls the disengagement of the pawl 9 between the two ratchet gear surfaces 6 and 6'. The housing 3 is rotatably supported by a pawl shaft 11, and the cam plate 10 and the secondary joint pair 8 are connected to the main joint pair 4.
In the ratchet which is rotatably supported by the main shaft 12, a closing angle limiting primary push part 15D is provided near the D part on the outside of the arm base of the secondary joint pair 8, and a closing angle limiting primary receiving part 16d is provided near the d part of the cam plate 10. , cam plate 10
A closing angle limiting secondary push part 13a is placed near the a part of the main joint pair 4, a closing angle limiting secondary receiving part 14A is placed near the A part on the back side of the arm root of the main joint pair 4, and a closing angle limiting secondary receiving part 14A is placed near the A part of the back side of the arm root of the secondary joint pair 8.
The ratchet is provided with a disengagement cam pushing part 17C near the part and a disengagement cam receiving part 18c near the c part of the cam plate 10. (5) A main joint pair 4 consisting of a housing 3 which has a seat frame mounting arm 1 and is bent in a U-shape so that its two surfaces 2 and 2' face each other, and a back frame inside the housing. A ratchet gear surface 6, 6' has a mounting arm 5, is bent into a U-shape so that two surfaces 6, 6' face each other, and has a plurality of ratchet teeth 7 on a part of its outer periphery. A secondary joint pair 8 consisting of
The pawl 9 has four elements: a pawl 9 arranged to prevent rotation in the opening angle direction, and a cam plate 10 that controls the disengagement of the pawl 9 between the two ratchet gear surfaces 6 and 6'. The housing 3 is rotatably supported by a pawl shaft 11, and the cam plate 10 and the secondary joint pair 8 are connected to the main joint pair 4.
In the ratchet rotatably supported by the main shaft 12, a closing angle limiting primary push portion 15D is provided near the D portion on the outside of the base of the accessory joint pair 000, and a closing angle limiting primary receiving portion 16d is provided near the D portion of the cam plate 10. Cam plate 10
A closing angle limiting secondary push part 13a is placed near the a part of the main joint pair 4, a closing angle limiting secondary receiving part 14A is placed near the A part on the back side of the arm root of the main joint pair 4, and a closing angle restricting secondary receiving part 14A is placed near the A part of the back side of the arm root of the secondary joint pair 8.
The ratchet is provided with a disengagement cam pushing part 17E near the part and a disengagement cam receiving part 18e near the part e of the cam plate 10.