JPH0484045U

JPH0484045U -

Info

Publication number: JPH0484045U
Application number: JP12913390U
Authority: JP
Priority date: 1990-11-30
Filing date: 1990-11-30
Publication date: 1992-07-22
Anticipated expiration: 2005-11-30
Also published as: JP2542640Y2

Description

[Brief explanation of drawings]

第１図から第３図は本考案の一実施例を示して
おり、第１図はヘツドレスト装置の斜視図、第２
図は同じく要部斜視図、第３図は拘束解除操作を
示す説明図、第４図は従来例に係るヘツドレスト
装置の斜視図である。１０……シートバツク、２０……ステー、２１
……外ステー、２１ａ……溝部、２２……内ステ
ー、２２ａ……頚部、３０……ヘツドレスト本体
、５０……上下位置調節用の駆動機構、５５……
外出力部材、５６……係止爪、５７……被拡開片
、６０……前後位置調節用の駆動機構、６５……
内出力部材、６６……弾性挾持部、７０……操作
ロツド部材、７３……レバー部材、７４……板バ
ー部。 Figures 1 to 3 show one embodiment of the present invention, with Figure 1 being a perspective view of the headrest device, Figure 2 being a perspective view of the headrest device;
3 is an explanatory view showing a restraint release operation, and FIG. 4 is a perspective view of a conventional headrest device. 10... Seat back, 20... Stay, 21
... Outer stay, 21a... Groove, 22... Inner stay, 22a... Neck, 30... Head rest main body, 50... Drive mechanism for vertical position adjustment, 55...
External output member, 56... Locking claw, 57... Expandable piece, 60... Drive mechanism for adjusting front and back position, 65...
Internal output member, 66... elastic clamping part, 70... operating rod member, 73... lever member, 74... plate bar part.

Claims

[Claims for Utility Model Registration] A headrest device in which a stay extends upward from the upper end of a seat bag, and a headrest body is supported on the stay in a vertically adjustable and longitudinally adjustable manner, wherein the stay is vertically movable relative to the seat bag. It consists of an outer stay that is attached to the outer stay, and an inner stay that is fitted into the outer stay and is movable up and down relative to the outer stay, and a vertical position in which both the outer stay and the inner stay can be moved up and down. A drive mechanism for adjustment and a drive mechanism for adjusting the longitudinal position that can move only the inner stay up and down are installed in the seat back, and an elastic clamping part is provided on the inner output member that is the output end of the drive mechanism for adjusting the longitudinal position. At the same time, a neck is provided at the lower end of the inner stay, and the neck of the inner stay is clamped by the elastic clamping part of the internal output member with a strength that does not come off under the operating load, and the output of the drive mechanism for vertical position adjustment is provided. The outer output member, which is the end, is formed into a split cylinder shape, and a locking pawl that elastically fits into a groove cut in the outer stay is provided protruding from the inner edge of the circumferential opening. Opening pieces are formed on both edges of the split opening, and are extended in the vertical direction within the seat bag, with an operating end protruding from the upper end of the seat bag, and between the opposing expanded pieces of the external output member. 1. A headrest device comprising: an operating rod member having a plate bar portion that expands the gap between the expanded pieces when inserted into the headrest and rotates to release the locking claw of the external output member from the groove of the outer stay.