JPH03125448U

JPH03125448U -

Info

Publication number: JPH03125448U
Application number: JP3441990U
Authority: JP
Priority date: 1990-03-30
Filing date: 1990-03-30
Publication date: 1991-12-18
Anticipated expiration: 2004-02-09
Also published as: JPH064751Y2

Description

[Brief explanation of drawings]

第１図から第４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図はレバー部材等を示す斜視
図、第５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…操作軸、８０…外ロツク
部材、９０…内ロツク部材。 1 to 4 show one embodiment of the present invention, in which FIG. 1 is a perspective view of the headrest device, and FIG. 2 is a perspective view of the headrest device.
3 is a perspective view showing the outer lock member, etc., FIG. 4 is a perspective view showing the lever member, etc., and FIG. 5 is a conventional example, and is a perspective view of the headrest device. be. DESCRIPTION OF SYMBOLS 10... Seat back, 20... Stay, 21... Outer stay, 22... Inner stay, 30... Head rest main body, 50... Drive mechanism for vertical position adjustment, 52... External output member, 60... Drive mechanism for longitudinal position adjustment, 6
2...Inner output member, 70...Operation shaft, 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 main 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 longitudinal position adjustment capable of vertically moving only the inner stay are installed inside the seat back, and an external output member which is an output end of the drive mechanism for vertical position adjustment, The outer stay and the inner stay are respectively fitted and inserted into an inner output member which is an output end of a drive mechanism for position adjustment, and are extended and rotatably supported in the up and down direction within the seat bag, and are supported rotatably in the seat back. An operating shaft with an operating end protruding from the upper end; and an operating shaft that is inserted into the operating shaft so that it can be moved up and down relative to the operating shaft but cannot be rotated relative to the operating shaft, and when the operating shaft is rotated, a restraining position in which the external output member and the outer stay are engaged with each other and restrained from moving up and down relative to each other; an outer lock member that can be pivoted to a restraint release position where it comes off; a restraining position in which the internal output member and the internal stay are both engaged and restrained so that they cannot move vertically relative to each other; A headrest device characterized by comprising an inner lock member that is swingable to a restraint release position where it is removed from an inner stay.