JPS6211450U

JPS6211450U -

Info

Publication number: JPS6211450U
Application number: JP10317385U
Authority: JP
Priority date: 1985-07-06
Filing date: 1985-07-06
Publication date: 1987-01-23
Also published as: JPH0344012Y2

Description

[Brief explanation of drawings]

第１図〜第５図は本考案の一実施例を示してお
り、第１図はヘツドレストの内部構造を示す分解
斜視図、第２図はヘツドレスト本体の縦断面図、
第３図〜第５図は作用説明のための説明図であつ
て、第３図はヘツドレスト本体が移動ストローク
の終端である最前の位置にあつて歯部材が解除状
態に反転した状態、第４図は歯部材は解除状態で
ヘツドレスト本体を復帰させた状態、第５図は歯
部材が係合状態に復帰した状態を示している。１０……支持ステー、１１……支持ブラケツト
、２０……ヘツドレスト本体、２１……ヘツドレ
ストフレーム、２２……側板、３０……リンク機
構、３１……枢着軸（復帰係合部）、４０……第
１揺動リンク部材、４１……係止爪、４２……解
除係合部、６０……歯部材、６２……歯部、６３
……解除入力端、６４……復帰入力端、６５……
板ばね。 Figures 1 to 5 show an embodiment of the present invention, in which Figure 1 is an exploded perspective view showing the internal structure of the headrest, Figure 2 is a longitudinal sectional view of the headrest main body,
3 to 5 are explanatory diagrams for explaining the operation, and FIG. 3 shows a state in which the headrest main body is at the forefront position at the end of the movement stroke and the tooth member is reversed to the released state; The figure shows a state in which the headrest body has been returned to its original state with the tooth member in the released state, and FIG. 5 shows a state in which the tooth member has returned to the engaged state. 10...Support stay, 11...Support bracket, 20...Head rest main body, 21...Head rest frame, 22...Side plate, 30...Link mechanism, 31... Pivot shaft (return engagement part), 40 ...First swing link member, 41...Latching pawl, 42...Release engagement portion, 60...Tooth member, 62...Tooth portion, 63
...Release input terminal, 64...Return input terminal, 65...
Leaf spring.

Claims

[Claims for Utility Model Registration] In a headrest whose position can be adjusted by moving the headrest main body back and forth with respect to a support stay, each of the bases is configured to stand up in parallel with the upper end of the support stay and the upper end. The headrest frame is movable back and forth by a link mechanism consisting of a pair of swinging link members pivotally attached to the upper end and a headrest frame to which the tips of the pair of swinging link members are pivoted, respectively. The head rest frame is supported by a spring stretched between the upper end of the support stay and the head rest frame, and the tooth member is pivotably supported on the head rest frame. , the tooth member is biased and held reversibly between an engaged state and a released state via a turnover spring, and the tooth member is provided with a release input end and a return input end, and the swing link member A locking pawl is integrally fixed to one of the teeth of the tooth member, and engages with the teeth of the tooth member so that it cannot be climbed over in one direction, and that it can be climbed over in the opposite direction, and the headrest main body is attached to the component of the link mechanism with the headrest main body at the forefront. At the end of the moved engagement stroke, the release engagement portion engages with the release input end of the tooth member to release the engagement with the locking pawl and bring it into the released state, and the headrest body is returned to its original position. A headrest characterized in that a return engaging portion is provided which engages with the return input end of the tooth member to reverse the engagement state and perform a return operation.