JPS5999885U

JPS5999885U - front fork

Info

Publication number: JPS5999885U
Application number: JP20223282U
Authority: JP
Inventors: 雄二森田
Original assignee: カヤバ工業株式会社
Priority date: 1982-12-24
Filing date: 1982-12-24
Publication date: 1984-07-05

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は本考案に係るフロントフォークを一部切截して
示す正面図、第２図はピストン部を拡大して示す断面図
である。１・・・アウターチューブ、２・・・インナーチューブ
、３・・・ピストン部、１１・・・基部、１２・・・大
径部、２１・・・基部、２２・・・細径部、Ａ・・・圧
力室。補正　昭５８−　　Ｊｌｌ　１５実用新案登録請求の範囲を次のよ−うに補正する。Ｏ実用新案登録請求の範囲一（１）７ウターチユーブ内に挿入されたインナーチュー
ブの先端部にピストン部を形成するとともに、当該ピス
トン部によってアウターチューブとインナーチューブと
の間に圧力室を形成してなるフロントフォークにおいて
、インナーチューブの外径を上方基部の外径より小径と
する細−径部を有し、当該細径部を摺接保持する軸受を
アウターチューブ側に配設してアウターチューブとイン
ナーチューブとの間に圧力室を形成してなるフロントフ
ォーク。（２）アウターチューブはその基部の上下端部内壁にイ
ンナーチューブの摺接を可とする軸受をそれぞれ有して
なる実用新案登録請求の範囲第１項記載のフロントフォ
ーク。（３）アウターチュ−ブはその基部の上下端部内壁にイ
ンナーチューブの摺接を可とする軸受をそれぞれ有する
とともに、上方の軸受にはインナーチューブの基部の摺
接を可とし下方の軸受にはインナーチューブの細径部の
摺接を可として−なる実用新案登録請求の範囲第２項記
載のフロントフォーク、（４）　　ピストン部は減衰力発生機構とチェックバル
ブ機構とを有してなる実用新案登録請求の範囲　　′−
第１項記載やフロントフォーク。FIG. 1 is a partially cutaway front view of a front fork according to the present invention, and FIG. 2 is an enlarged sectional view of a piston portion. DESCRIPTION OF SYMBOLS 1... Outer tube, 2... Inner tube, 3... Piston part, 11... Base, 12... Large diameter part, 21... Base, 22... Small diameter part, A ...Pressure chamber. Amendment 1980-Jll 15 The scope of the claims for utility model registration is amended as follows. O Utility Model Registration Claims 1 (1) 7 A piston part is formed at the tip of the inner tube inserted into the outer tube, and a pressure chamber is formed between the outer tube and the inner tube by the piston part. In this front fork, the inner tube has a narrow diameter part where the outer diameter is smaller than the outer diameter of the upper base, and a bearing that slides and holds the narrow diameter part is disposed on the outer tube side. A front fork with a pressure chamber formed between it and the inner tube. (2) The front fork according to claim 1, wherein each of the outer tubes has bearings on the inner walls of the upper and lower ends of the base thereof to allow the inner tube to come into sliding contact with the inner tube. (3) The outer tube has bearings on the inner walls of the upper and lower ends of its base that allow the inner tube to come into sliding contact, and the upper bearing allows the base of the inner tube to come into sliding contact with the lower bearing. (4) A front fork according to claim 2 of the registered utility model claim, which is capable of sliding contact with a small diameter portion of an inner tube; Scope of claim for new patent registration ′−
Section 1 description and front fork.

Claims

[Scope of utility model registration request]

(1) In a front fork that is inserted into an outer tube and has a piston portion formed at the tip of the inner tube, and the piston portion forms a pressure chamber between the outer tube and the inner tube, the outer tube The inner tube has a large diameter part where the inner diameter of the part where the piston part slides is larger than the inner diameter of the upper base part, and the outer diameter of the part where the inner tube forms a pressure chamber between it and the outer tube is the outer diameter of the upper base part. A front fork having a narrower diameter part.

(2) The front fork according to claim 1, wherein each of the outer tubes has bearings on the inner walls of the upper and lower ends of the base thereof to allow the inner tube to come into sliding contact with the inner tube.

(3) The outer tube has bearings on the inner walls of the upper and lower ends of its base that allow the inner tube to come into sliding contact, the upper bearing allows the base of the inker tube to come into sliding contact, and the lower bearing has bearings that allow the inner tube to come into sliding contact. The front fork according to claim 2 of the utility model registration, which allows sliding contact with the narrow diameter portion of the tube.

(4) The front fork according to claim 1, wherein the piston portion has a damping force generating mechanism and a check valve mechanism.