JPH01150193U - - Google Patents

Description

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

第１図は本考案にかかるフロントフオークを備
えた自動二輪車の正面図、第２図は同フロントフ
オークの一方の油圧緩衝器の断面図、第３図は同
フロントフオークの他方の油圧緩衝器の断面図、
第４図は第３図の要部拡大断面図である。 尚、図面中、１はフロントフオーク、２，３は
油圧緩衝器、５はアウターチユーブ、６はインナ
ーチユーブ、２１はロツド、２３はシリンダ、３
８はピストン、４３はガイド、５０は圧縮側減衰
可変機構、５１はホルダ、５３は補助パイプ、５
６はバルブホルダ、５９は連通油路、６１はニー
ドルバルブ、６３はバルブシート、６５はチエツ
クバルブである。 Fig. 1 is a front view of a motorcycle equipped with a front fork according to the present invention, Fig. 2 is a sectional view of one hydraulic shock absorber of the front fork, and Fig. 3 is a cross-sectional view of the other hydraulic shock absorber of the front fork. cross section,
FIG. 4 is an enlarged sectional view of the main part of FIG. 3. In addition, in the drawing, 1 is a front fork, 2 and 3 are hydraulic shock absorbers, 5 is an outer tube, 6 is an inner tube, 21 is a rod, 23 is a cylinder, 3
8 is a piston, 43 is a guide, 50 is a compression side damping variable mechanism, 51 is a holder, 53 is an auxiliary pipe, 5
6 is a valve holder, 59 is a communication oil passage, 61 is a needle valve, 63 is a valve seat, and 65 is a check valve.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] アウターチユーブ内に下方からインナーチユー
ブを摺動自在に挿入した左右一対の油圧緩衝器か
らなる自動二輪車用フロントフオークにおいて、
前記各油圧緩衝器は上端部をアウターチユーブに
取付けたロツドをインナーチユーブ内に臨ませて
、このロツドの下端部にはシリンダを取付け、更
に一方の油圧緩衝器のシリンダの下端部外周には
インナーチユーブ内周面に摺接するバルブ機構を
備えたピストンを装着し、他方の油圧緩衝器には
シリンダ内に摺動自在に補助パイプを立設し、こ
の補助パイプ下側にはパイプ内側油室とパイプ外
側油室とを連通する油路を形成して、この油路の
開口面積を変化させる可変手段を設けてなる圧縮
側減衰力可変機構を備えたことを特徴とする自動
二輪車用フロントフオーク。 A front fork for a motorcycle consists of a pair of left and right hydraulic shock absorbers with an inner tube slidably inserted into an outer tube from below.
Each of the hydraulic shock absorbers has a rod whose upper end is attached to the outer tube and faces inside the inner tube, a cylinder is attached to the lower end of this rod, and an inner tube is attached to the outer periphery of the lower end of the cylinder of one of the hydraulic shock absorbers. A piston equipped with a valve mechanism that slides on the inner circumferential surface of the tube is installed, and an auxiliary pipe is installed in the other hydraulic shock absorber so as to be able to slide freely inside the cylinder. A front fork for a motorcycle, characterized in that it is equipped with a compression side damping force variable mechanism formed by forming an oil passage communicating with an oil chamber on the outside of the pipe and providing variable means for changing the opening area of the oil passage.