JPS63197441U

JPS63197441U -

Info

Publication number: JPS63197441U
Application number: JP8886487U
Authority: JP
Priority date: 1987-06-09
Filing date: 1987-06-09
Publication date: 1988-12-20
Also published as: JPH042594Y2

Description

[Brief explanation of drawings]

第１図は本考案の座支持装置の主要部を示した
縦断面図、第２図は第１図の―線に沿う矢視
断面図、第３図は本考案の座支持装置を適用した
連結椅子の斜視図である。４……背座支持金物、５……背板、６……座受
口、７……円弧溝、７ａ……円弧溝一端部、７ｂ
……円弧溝他端部、８……ネジ孔、９……バネ掛
孔、１０……座ブツシユ、１１……座支持アーム
、１１ａ……アーム主板部、１２……座板、１３
……円筒形突出口、１３ａ……同突出口の口端部
、１４……アームストツパ部、１５，１５ａ，１
５ｂ……バネ掛切欠孔、１６……座起立用のコイ
ルばね、１６ａ……同コイルばねの一端部、１６
ｂ……同コイルばねの他端部、１７……アームカ
バー、１８……取付ネジ、１８ａ……バネ座金、
１９……スペーサ筒。 Fig. 1 is a vertical sectional view showing the main parts of the seat support device of the present invention, Fig. 2 is a sectional view taken along the line - in Fig. 1, and Fig. 3 is a cross-sectional view showing the main parts of the seat support device of the present invention. It is a perspective view of a connecting chair. 4...Back seat support hardware, 5...Back plate, 6...Seat socket, 7...Circular groove, 7a...Circular groove one end, 7b
...Other end of the arcuate groove, 8...Screw hole, 9...Spring hole, 10...Seat button, 11...Seat support arm, 11a...Arm main plate, 12...Seat plate, 13
...Cylindrical protrusion, 13a... Mouth end of the protrusion, 14... Arm stop portion, 15, 15a, 1
5b...Spring hook notch hole, 16...Coil spring for raising the seat, 16a...One end of the same coil spring, 16
b...Other end of the same coil spring, 17...Arm cover, 18...Mounting screw, 18a...Spring washer,
19...Spacer tube.

Claims

[Scope of utility model registration request]

For the left and right back seat support hardware to attach the back plate,
This is a seat support device that supports a seat support arm that is fixed to a seat plate so that it can be raised and rotated, and has a seat socket provided on the opposite inner side of the back seat support hardware, and a screw hole and a screw hole in the inner bottom of the seat socket. In addition to providing a spring hook hole, an arcuate groove for regulating the upper and lower rotation limits of the seat support arm is recessed in the outer circumference of the seat support arm, and a seat bush is provided in the seat socket of the left and right back seat support hardware. The cylindrical protrusion at the base end of the seat support arm is rotatably fitted into the seat bushing, and the arm stopper protruding near the protrusion is rotated into the circular groove of the back support metal. A spring-loaded notch hole is provided at the mouth end of the cylindrical protrusion that protrudes inward from the arm main plate surface, and the seat upright is housed in the internal space of the protrusion and seat socket. One end of the coil spring for the seat is locked in the spring hook hole at the inner bottom of the seat socket, and the other end is hooked in the spring hook notch hole at the end of the protrusion, and the seat support arm is rotated so that the seat plate automatically stands up. The present invention is characterized by being biased, and by providing an arm cover that closes the protruding end of the seat support arm, and detachably attaching this arm cover by a mounting screw screwed into a screw hole at the inner bottom of the seat socket. Seat support device for chairs.