JPS6320544U

JPS6320544U -

Info

Publication number: JPS6320544U
Application number: JP11478486U
Authority: JP
Priority date: 1986-07-25
Filing date: 1986-07-25
Publication date: 1988-02-10

Description

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

第１図は本考案に係る油圧緩衝器の縦断面図、
第２図は作用を説明した要部拡大図、第３図は従
来の緩衝器の構造を示す断面図である。尚、図面中１はボトムケース、５はフオークパ
イプ、８はシートパイプ、８ａは油孔、１４はフ
リーバルブ、１６はバイパス油路、１７はチエツ
クバルブ、２０はネジ部材、Ｓ_１，Ｓ_２，Ｓ_３は
油室である。 FIG. 1 is a longitudinal sectional view of a hydraulic shock absorber according to the present invention;
FIG. 2 is an enlarged view of main parts explaining the function, and FIG. 3 is a sectional view showing the structure of a conventional shock absorber. In the drawing, 1 is a bottom case, 5 is a fork pipe, 8 is a seat pipe, 8a is an oil hole, 14 is a free valve, 16 is a bypass oil passage, 17 is a check valve, 20 is a screw member, S ₁ , S ₂ , _S3 is an oil chamber.

Claims

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

ボトムケース内の底部にシートパイプを固着し
、ボトムケース内周面に摺動するフオークパイプ
を上方から挿入し、ボトムケース内周面とシート
パイプ外周面との間に形成される油室とシートパ
イプ内方に形成される油室とをシートパイプに設
けた油孔で連通してなる車両用油圧緩衝器におい
て、前記ボトムケースにはボトムケース内周面と
シートパイプ外周面との間に形成される油室とシ
ートパイプ内方に形成される油室とを連通する前
記油孔とは別のバイパス油路を形成し、この油路
内に緩衝器の伸び側時にシートパイプ内方の油室
からボトムケース内周面とシートパイプ外周面と
の間の油室への作動油の流れを許容し且つ外部操
作によつて流路面積を可変とされたチエツクバル
ブを設けたことを特徴とする車両用油圧緩衝器。 A seat pipe is fixed to the bottom of the bottom case, and a fork pipe that slides on the inner circumferential surface of the bottom case is inserted from above to form an oil chamber and a seat between the inner circumferential surface of the bottom case and the outer circumferential surface of the seat pipe. In a hydraulic shock absorber for a vehicle in which an oil chamber formed inside a pipe is communicated with an oil hole provided in a seat pipe, the bottom case has an oil chamber formed between the inner circumferential surface of the bottom case and the outer circumferential surface of the seat pipe. A bypass oil passage separate from the oil hole is formed that communicates the oil chamber formed inside the seat pipe with the oil chamber formed inside the seat pipe, and in this oil passage, when the shock absorber is extended, the oil inside the seat pipe is A check valve is provided that allows hydraulic oil to flow from the chamber to the oil chamber between the inner circumferential surface of the bottom case and the outer circumferential surface of the seat pipe, and whose flow area is variable by external operation. Hydraulic shock absorber for vehicles.