JPH0452636U

JPH0452636U -

Info

Publication number: JPH0452636U
Application number: JP9534290U
Authority: JP
Priority date: 1990-09-11
Filing date: 1990-09-11
Publication date: 1992-05-06

Description

[Brief explanation of drawings]

第１図はこの考案の一実施例に係る倒立型フロ
ントフオークを一部破断して示す部分縦断面図、
第２図は従来の倒立型フロントフオークにおける
オイルロツク装置のみを示す部分縦断面図である
。符号の説明、１……シリンダ体、２……ロツド
体、３……車軸側チユーブ、４……車体側チユー
ブ、５……懸架ばね、６……スプリングカラー、
９……オイルロツクケース、１０……オイルロツ
クコーン。 FIG. 1 is a partial vertical cross-sectional view showing an inverted front fork according to an embodiment of the invention, with a part cut away;
FIG. 2 is a partial vertical sectional view showing only the oil lock device in a conventional inverted front fork. Explanation of symbols: 1...Cylinder body, 2...Rod body, 3...Axle side tube, 4...Vehicle body side tube, 5...Suspension spring, 6...Spring collar,
9...Oil lock case, 10...Oil lock cone.

補正平３．１２．６考案の名称を次のように補正する。考案の名称オイルロツク装置実用新案登録請求の範囲、図面の簡単な説明を
次のように補正する。Amendment 3.12.6 The name of the invention is amended as follows. Title of the invention: Oil lock device The scope of the claims for utility model registration and the brief description of the drawings are amended as follows.

【実用新案登録請求の範囲】上端側部材とされる車体側チユーブと、下端側
部材とされて上端側が摺接構造下に車体側チユー
ブ内に出没可能に挿通される車輪側チユーブと、
下端内部にベースバルブ部を有して車輪側チユー
ブの軸芯部に立設されるシリンダ体と、車体側チ
ユーブの軸芯部に垂設されて先端側が軸封構造下
にシリンダ体内に出没可能に挿通され先端にシリ
ンダ体内で摺動しシリンダ体内に伸側室と圧側室
とを区画形成するピストン部を連設するロツド体
と、シリンダ体の外周側に配在されて下端が車輪
側チユーブ側に係止される懸架ばねと、ロツド体
の外周側に配設されて上端が車体側チユーブ側に
係止され下端に懸架ばねの上端を当接させる上方
ばね受けたる円筒状のスプリングカラーと、シリ
ンダ体の上端に配設されスプリングカラーの内周
側に臨在される有底円筒状のオイルロツクケース
と、スプリングカラーの内周側に配設されオイル
ロツクケースに対向する円筒状のオイルロツクコ
ーンと、を有してなり、シリンダ体内にロツド体
が大きく没入される最圧縮時にオイルロツクコー
ンがオイルロツクケース内に没入されて両者間に
おける絞り作用でオイルロツク効果が発揮される
ように形成されてなるフロントフオークのオイル
ロツク装置において、スプリングカラーの下端外
周が圧側チエツク弁の配設下に車輪側チユーブの
内周に摺接されてなると共に、オイルロツクコー
ンの上端外周がスプリングカラーの内周に封止構
造下に連設されてなり、ロツド体がシリンダ体内
に没入される圧側行程時にシリンダ体内の圧側室
から流出されてオイルロツクケースの周側を流通
する作動油がオイルロツクコーンの内周側を流通
するように形成されてなることを特徴とするオイ
ルロツク装置。[Scope of Claim for Utility Model Registration] A vehicle body side tube serving as an upper end member; a wheel side tube serving as a lower end member whose upper end side is inserted into the vehicle body side tube under a sliding structure so as to be able to protrude and retract;
A cylinder body that has a base valve part inside the lower end and is installed upright on the shaft center of the wheel side tube, and a cylinder body that is vertically installed on the shaft center of the vehicle body side tube, and the tip side can protrude and retract into the cylinder body under the shaft seal structure. A rod body is inserted into the cylinder body and has a piston part inserted into the cylinder body at its tip, which slides in the cylinder body and partitions and forms a growth side chamber and a compression side chamber in the cylinder body. a cylindrical spring collar that receives an upper spring disposed on the outer circumferential side of the rod body, the upper end of which is secured to the tube side of the vehicle body, and the lower end of which abuts the upper end of the suspension spring; A cylindrical oil lock case with a bottom is disposed at the upper end of the cylinder body and faces the inner circumference of the spring collar, and a cylindrical oil lock cone is disposed on the inner circumference of the spring collar and faces the oil lock case. The oil lock cone is immersed in the oil lock case at the time of maximum compression when the rod body is deeply immersed in the cylinder body, and the oil lock effect is exerted by the squeezing action between the two. In this front fork oil lock device, the outer circumference of the lower end of the spring collar is in sliding contact with the inner circumference of the wheel side tube under the arrangement of the compression side check valve, and the outer circumference of the upper end of the oil lock cone is sealed with the inner circumference of the spring collar. During the pressure side stroke when the rod body is inserted into the cylinder body, the hydraulic oil flowing out from the pressure side chamber in the cylinder body and flowing around the circumference of the oil lock case is connected to the inner circumference side of the oil lock cone. An oil lock device characterized in that it is formed so as to flow through it.

【図面の簡単な説明】第１図はこの考案の一実施例に係る倒立型フロ
ントフオークを一部破断して示す部分縦断面図、
第２図は従来の倒立型フロントフオークにおける
オイルロツク装置のみを示す部分縦断面図である
。符号の説明、１……シリンダ体、２……ロツド
体、３……車輪側チユーブ、４……車体側チユー
ブ、５……懸架ばね、６……スプリングカラー、
９……オイルロツクケース、１０……オイルロツ
クコーン。[BRIEF DESCRIPTION OF THE DRAWINGS] FIG. 1 is a partial vertical cross-sectional view showing an inverted front fork according to an embodiment of the invention;
FIG. 2 is a partial vertical sectional view showing only the oil lock device in a conventional inverted front fork. Explanation of symbols: 1...Cylinder body, 2...Rod body, 3...Wheel side tube, 4...Vehicle body side tube, 5...Suspension spring, 6...Spring collar,
9...Oil lock case, 10...Oil lock cone.

Claims

[Scope of utility model registration request]

The lower end side of a rod body, which is vertically installed on the axle core of the vehicle body side tube, is inserted into the cylinder body that stands up on the axle core of the axle side tube, and the rod body is made to protrude from the cylinder body. The lower end of the suspension spring to be energized is locked to the inner bottom side of the tube on the axle side, while the upper end of the suspension spring is locked to the lower end of the cylindrical spring collar whose upper end is locked inside the upper end of the tube on the vehicle body side. In the inverted type front fork that is locked, a cylindrical oil lock case with a bottom is disposed at the upper end of the cylinder body, and a cylindrical oil lock cone is disposed on the inner periphery of the upper end of the spring collar. The oil lock cone is inserted into the oil lock case when the rod body is immersed into the cylinder body with a large stroke, and an oil lock cone is formed between the inner periphery of the oil lock case and the outer periphery of the oil lock cone. An oil lock device characterized by being formed so that hydraulic oil passes through a gap.