JPH0462876U

JPH0462876U -

Info

Publication number: JPH0462876U
Application number: JP10502590U
Authority: JP
Priority date: 1990-10-05
Filing date: 1990-10-05
Publication date: 1992-05-28
Anticipated expiration: 2005-01-18
Also published as: JPH071484Y2

Description

[Brief explanation of drawings]

第１図は従前手段の全体の縦断正面図、第２図
は同上の要部の縦断正面図、第３図は本考案を実
施せるドア用ダンパーの全体の縦断側面図、第４
図は同上の要部の縦断正面図、第５図は同上の別
の実施例の要部の縦断正面図である。図面符号の説明、Ａ……ドア用ダンパー、Ｏ…
…オイル、ａ……シリンダ、ｂ……ピストン、ｃ
……チエツキバルブ、ｄ……弁口、ｅ……調速棒
、ｆ……連通口、ｇ……熱膨張体、１……ドアヒ
ンジ、１０……取付板、１１０……取付部材、１
１……上部軸筒、１１１……キヤツプ、１２……
取付板、１３……下部軸筒、１３０……軸受、１
３１……雌ねじ、１４……支軸、２……作動部材
、２０……雄ねじ、３……支持棒、３０……頭部
、４０……弁室、４１……係止爪、４２……拡径
段部、４３……筒状部、５……押え金具、６０…
…環状の溝。 FIG. 1 is a longitudinal sectional front view of the entire conventional means, FIG. 2 is a longitudinal sectional front view of the main parts of the same, FIG. 3 is an entire longitudinal sectional side view of a door damper that can implement the present invention, and FIG.
The figure is a longitudinal sectional front view of the main parts of the same as above, and FIG. 5 is a longitudinal sectional front view of the main parts of another embodiment of the same. Explanation of drawing symbols, A...Door damper, O...
...Oil, a...Cylinder, b...Piston, c
...Check valve, d...Valve port, e...Governing rod, f...Communication port, g...Thermal expansion body, 1...Door hinge, 10...Mounting plate, 110...Mounting member, 1
1... Upper shaft cylinder, 111... Cap, 12...
Mounting plate, 13... Lower shaft cylinder, 130... Bearing, 1
31... Female thread, 14... Support shaft, 2... Operating member, 20... Male thread, 3... Support rod, 30... Head, 40... Valve chamber, 41... Locking claw, 42... Expanding diameter stepped portion, 43... Cylindrical portion, 5... Holding metal fitting, 60...
...A circular groove.

Claims

[Scope of Claim for Utility Model Registration] A piston b that reciprocates within a cylinder a in conjunction with the opening/closing operation of a door, and oil O sealed within the cylinder a so as to flow through the cylinder a due to the operation of the piston b. A valve port d is provided in the cylinder a and controlled by a check valve c so that the flowing oil O flows in one direction, and a regulating rod e.
In the door damper, which is provided with a communication port f provided in the cylinder a so as to finely restrict the flow of the flowing oil O, the thermal expansion body g made of a member whose volume changes due to thermal changes, such as rubber, is connected to a ring. The thermal expansion body g is molded into a shape and attached to the inner wall surface of the communication port f, and its inner circumferential surface is opposed to the outer circumferential surface of the regulating rod e that is inserted into the axial center portion of the communication port f. The gap between the inner peripheral surface and the outer peripheral surface of the regulating rod e is the communication port f.
A door damper characterized by forming an effective diameter of. A piston b reciprocates within a cylinder a in conjunction with the opening/closing operation of the door, and oil O sealed in the cylinder a so as to flow through the cylinder a due to the operation of the piston b, and the flowing oil O is unidirectionally moved. A valve port d is provided in the cylinder a and is controlled by a check valve c to allow the flow to flow through the cylinder.
In the door damper, which is provided with a communication port f provided in the cylinder a so as to finely restrict the flow of the flowing oil O, the thermal expansion body g made of a member whose volume changes due to thermal changes, such as rubber, is connected to a ring. It is molded into a shape and fitted onto the outer peripheral surface of a regulating rod e that can be inserted into the communication port f, and the gap between the outer peripheral surface of the thermally expandable body g and the inner wall surface of the communication port f is the same as that of the communication port f. A door damper characterized by forming an effective diameter.