JPS61129551U

JPS61129551U -

Info

Publication number: JPS61129551U
Application number: JP1164485U
Authority: JP
Priority date: 1985-01-30
Filing date: 1985-01-30
Publication date: 1986-08-13
Also published as: JPH0132903Y2

Description

【図面の簡単な説明】[Brief explanation of drawings]

図面は本考案の一実施例を示すもので、第１図
は一部を切り欠いて示した縦断正面図、第２図は
板状バネ手段と環状係止部材の関連を示す説明図
、第３図は第１図の―線断面図及び第４図は
第１図の―線断面図である。２…支柱、４…受筒、６…係止筒、８…円柱部
材、１０…椅子座部、１２…係止溝、１４…ボル
ト、１６…ストツパー、１８…盲孔、２０…弾性
部材、２４…係合部、２６…軸、２８…環状係止
部材、３４…板状バネ手段。 The drawings show one embodiment of the present invention, and FIG. 1 is a partially cutaway longitudinal sectional front view, FIG. 2 is an explanatory view showing the relationship between the plate spring means and the annular locking member, and FIG. 3 is a cross-sectional view taken along the line -- in FIG. 1, and FIG. 4 is a cross-sectional view taken along the line -- in FIG. 2... Support column, 4... Receiving tube, 6... Locking cylinder, 8... Cylindrical member, 10... Chair seat, 12... Locking groove, 14... Bolt, 16... Stopper, 18... Blind hole, 20... Elastic member, 24... Engaging portion, 26... Shaft, 28... Annular locking member, 34... Plate spring means.

Claims

【実用新案登録請求の範囲】[Scope of utility model registration request]

支柱の上端内部に受筒を設けるとともに椅子座
部の中央下部に円柱部材を設け、該円柱部材の上
部に環状溝を穿設し、該支柱の外側から挿入した
ボルトを該環状溝内に突入し、該受筒と該円柱部
材との間に一端を該円柱部材下面に設けた盲孔に
挿着して軸で固定し他端の断面方形の係合部を上
下動自在に該受筒下部に嵌着した弾性部材を取付
けてなる椅子座部の復元装置において、椅子座部
の所定方向と一致する方向に形成された係止面と
該係止面以外の摺動面とを有する環状係止部材を
該支柱の上端部近傍に設け、該環状係止部材と常
時係合するように該椅子座部下面に板状バネ手段
を設け、該板状バネ手段の押圧力により該椅子座
部が常時所定方向に位置するように付勢されてい
るようにしたことを特徴とする椅子座部の復元装
置。 A receiver is provided inside the upper end of the support, and a cylindrical member is provided at the lower center of the chair seat, an annular groove is bored in the upper part of the cylindrical member, and a bolt inserted from the outside of the support is inserted into the annular groove. One end of the receiver is inserted between the receiver and the cylindrical member into a blind hole provided on the lower surface of the cylindrical member and fixed with a shaft, and the engaging portion of the other end, which has a square cross section, is movable up and down. A restoring device for a chair seat, which includes an elastic member fitted to the lower part of the chair seat, wherein the ring-shaped part has a locking surface formed in a direction that coincides with a predetermined direction of the chair seat, and a sliding surface other than the locking surface. A locking member is provided near the upper end of the support, plate spring means is provided on the lower surface of the chair seat so as to constantly engage with the annular locking member, and the chair seat is moved by the pressing force of the plate spring means. A restoring device for a chair seat, characterized in that the restoring device is always biased to be positioned in a predetermined direction.