JPH03125447U

JPH03125447U -

Info

Publication number: JPH03125447U
Application number: JP3441890U
Authority: JP
Priority date: 1990-03-30
Filing date: 1990-03-30
Publication date: 1991-12-18

Description

[Brief explanation of the drawing]

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図は外ロツク部材等
を示す斜視図、第４図は従来例を示しており、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、２２…内ステー、３０…ヘツドレスト本
体、５０…上下位置調節用の駆動機構、５２…外
出力部材、６０…前後位置調節用の駆動機構、６
２…内出力部材、７０…操作ロツド部材、８０…
外ロツク部材、９０…内ロツク部材。 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 a perspective view showing the outer lock member and the like, and FIG. 4 is a perspective view of a conventional headrest device. DESCRIPTION OF SYMBOLS 10... Seat back, 20... Stay, 21... Outer stay, 22... Inner stay, 30... Headrest main body, 50... Drive mechanism for vertical position adjustment, 52... External output member, 60... Drive mechanism for longitudinal position adjustment, 6
2... Internal output member, 70... Operation rod member, 80...
Outer lock member, 90...inner lock member.

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 the outer stay and the inner stay are both movable up and down. A drive mechanism for adjustment and a drive mechanism for longitudinal position adjustment capable of vertically moving only the inner stay are installed in the seat back, and the outer output member, which is an output end of the drive mechanism for vertical position adjustment, is connected to the outer output member. An outer lock member that engages with and disengages from the stay to restrain and release the outer stay from moving up and down relative to each other is pivotally supported, and similarly, an inner output member that is the output end of the drive mechanism for adjusting the longitudinal position is attached to the outer lock member. , pivotably supports an inner lock member that engages and disengages from the inner stay to restrain and release the inner stay from moving up and down relative to each other; The end portion protrudes and is pivotally supported to be swingable about a shaft extending in the vertical direction, and swings when the operating end portion is operated to lock the outer lock member and the inner lock member together. A headrest device characterized by comprising an operation lock member for performing a restraint operation and a restraint release operation, respectively.