JPS6234875Y2

JPS6234875Y2 -

Info

Publication number: JPS6234875Y2
Application number: JP532382U
Authority: JP
Priority date: 1982-01-18
Filing date: 1982-01-18
Publication date: 1987-09-04
Also published as: JPS58107954U

Description

【考案の詳細な説明】本考案は、チエーンステー拡張器に取付けるこ
とにより、該拡張器を小型自転車から大型自転車
まで広範囲に用い得るようにしたチエーンステー
拡張器の補助具に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an auxiliary tool for a chainstay expander that is attached to the chainstay expander so that the expander can be used in a wide range of applications from small bicycles to large bicycles.

従来用いられているチエーンステー拡張器は26
インチの自転車を対象として製造されたものであ
り、近年需要が高まつてきた小型自転車に用いる
となると、不都合な面を有している。即ち、小型
自転車では26インチの自転車に比べてチエーンス
テーが短いため、上記拡張器をチエーンステー間
に装着してチエーンステー間隔を、タイヤの取付
け及び取外しに十分なだけ広げると、チエーンス
テーと車体とのなす角度が26インチの自転車に比
べて急角度となり、チエーンステー拡張器が外
れ、事故を起こすことも度々であつた。従つて、
今では小型自転車の場合チエーンステー拡張器を
用いず、車体を分解してタイヤの取付け及び取外
しを行なつている。 The conventionally used chainstay dilator is 26
It was manufactured for inch-sized bicycles, and has some disadvantages when used for small-sized bicycles, of which demand has been increasing in recent years. In other words, small bicycles have shorter chain stays than 26-inch bicycles, so if you install the expander between the chain stays and widen the distance between the chain stays enough for tire installation and removal, the chain stays and the vehicle body will be The angle between the two wheels was steeper than that of a 26-inch bicycle, and the chainstay expander often came off, causing accidents. Therefore,
Nowadays, in the case of small bicycles, tires are installed and removed by disassembling the bicycle body without using a chain stay expander.

そこで、叙上のような実情に鑑みて考案された
のが本願考案であり、その目的は当接板に凸設し
た支軸を基台の凹溝に遊嵌せしめ、該基台をチエ
ーンステー拡張器の可動脚に固定することによ
り、従来のチエーンステー拡張器を小型自転車に
も用い得るようにしたチエーンステー拡張器の補
助具を提供するものである。 Therefore, the present invention was devised in view of the above-mentioned circumstances, and its purpose is to loosely fit the supporting shaft protruding on the abutting plate into the groove of the base, and to connect the base to a chain stand. The present invention provides an auxiliary tool for a chainstay dilator that allows a conventional chainstay dilator to be used even for small bicycles by being fixed to the movable legs of the dilator.

以下、図に基づいて一実施例を説明すると、本
考案に係るチエーンステー拡張器の補助具Ａは第
１図に示すようにチエーンステー拡張器Ｋの可動
軸K₁に装着するものである。該補助具Ａは基台
１と当接部材２とからなり、脚部１ａ，１ａを有
する基台１の肉厚部１ｂには凹溝１ｃが設けら
れ、該凹溝１ｃに当接部材２の支軸２ａが遊嵌さ
れている。当接部材２は支軸２ａを軸として回動
し得る構成である。支軸２ａは当接板２ｂに凸設
されたものであり、支軸２ａの軸方向は当接板２
ｂに平行である。該当接板２ｂはチエーンステー
に密接し得るように凹面２ｃを有する。支軸２ａ
の両端面２ｅ，２ｅには螺子穴２ｄ，２ｄが設け
られ、支軸２ａを凹溝１ｃに遊嵌後、係止板３，
３が座金４を介して螺子５で支軸２ａの両端面２
ｅ，２ｅに固着される。基台１肉厚部１ｂがチエ
ーンステー拡張器Ｋの可動脚K₁に当接する部分
には凸状部１ｆが設けられ、可動脚K₁の凹部に
密接する構成である。基台１の脚部１ａの片方に
穿設された螺子孔１ｄ，１ｄに螺着される螺子
６，６により基台１は拡張器Ｋの可動脚K₁に固
着される。螺子６は基台１内部へ突出する構成の
ため、上記可動脚K₁の厚みの変化に対応するこ
とができる。一方、両脚部１ａ，１ａ端部に穿設
された螺子孔１ｅ，１ｅ，１ｅ，１ｅ螺着される
螺子７，７と基台肉厚部１ｂの凸状部１ｆとによ
り可動脚K₁を挟むようにして基台１は可動脚K₁
に固着されている。 Hereinafter, one embodiment will be described based on the drawings. A chain stay dilator auxiliary tool A according to the present invention is attached to a movable shaft _K1 of a chain stay dilator K as shown in FIG. The auxiliary tool A consists of a base 1 and a contact member 2. A groove 1c is provided in the thick part 1b of the base 1 having legs 1a, 1a, and the contact member 2 is provided in the groove 1c. The support shaft 2a is loosely fitted. The contact member 2 is configured to be able to rotate around a support shaft 2a. The support shaft 2a is provided in a convex manner on the contact plate 2b, and the axial direction of the support shaft 2a is parallel to the contact plate 2b.
parallel to b. The contact plate 2b has a concave surface 2c so that it can come into close contact with the chain stay. Support shaft 2a
Screw holes 2d, 2d are provided in both end surfaces 2e, 2e of the locking plate 3, after loosely fitting the support shaft 2a into the groove 1c.
3 is attached to both end surfaces 2 of the support shaft 2a with a screw 5 through a washer 4.
e, 2e. A convex portion 1f is provided at a portion where the thick portion _1b of the base 1 comes into contact with the movable leg K1 of the chainstay expander K, and is configured to come into close contact with the concave portion of the movable leg _K1 . The base 1 is fixed to the movable leg K1 of the dilator K by screws 6, 6 screwed into screw holes 1d, 1d bored in _one of the legs 1a of the base 1. Since the screw 6 is configured to protrude into the interior of the base 1, it can accommodate changes in the thickness of the movable leg _K1 . On the other hand, the movable leg _K1 is moved by the screw holes 1e, 1e, 1e, 1e, which are screwed into the screw holes 1e, 1e, which are bored in the ends of both leg parts 1a, 1a, and the convex part 1f of the thick base part 1b. The base 1 is the movable leg K ₁
is fixed to.

チエーンステー拡張器の補助具Ａの使用方法を
説明すると、従来のチエーンステー拡張器は両チ
エーンステー間に介在させ、該拡張器Ｋの固定脚
K₂の凹部を向こう側のチエーンステーに当接す
るとともに、可動脚K₁の凹部を手前のチエーン
ステーに当接し、ハンドルＬを回転することによ
り両チエーンステーの間隔を広げる器具である
が、本考案の補助具Ａは上記可動脚K₁に装着
し、当接部材２の凹面２ｃを手前のチエーンステ
ーに当接して用いるものである。 To explain how to use the chain stay dilator auxiliary device A, the conventional chain stay dilator is interposed between both chain stays, and the fixed leg of the dilator K is
This is a device that widens the distance between both chainstays by touching the concave part of K ₂ to the chain stay on the other side, and touching the concave part of movable leg K ₁ to the chain stay in front, and rotating the handle L. The invented auxiliary tool A is attached to the movable leg _K1 , and is used by abutting the concave surface 2c of the contact member 2 against the chain stay in front.

叙上の如く、本考案のチエーンステー拡張器の
補助具は当接部材を基台の凹溝に遊嵌することに
より、当接部材を回動し得るようにし、チエーン
ステーと車体とのなす角度が増大しても、当接部
材がチエーンステーに密接したまま、チエーンス
テーの動きに追随し得るようにしたことを特徴と
するものである。そのためチエーンステーが短い
小型自転車に対しても、本考案の補助具を取付け
ることにより従来のチエーンステー拡張器を好都
合に使用することができる。 As mentioned above, the auxiliary tool for the chainstay expander of the present invention allows the abutting member to rotate by fitting the abutting member loosely into the groove of the base, thereby improving the relationship between the chainstay and the vehicle body. The present invention is characterized in that even if the angle increases, the contact member can follow the movement of the chain stay while remaining in close contact with the chain stay. Therefore, even for small bicycles with short chainstays, the conventional chainstay expander can be conveniently used by attaching the auxiliary device of the present invention.

本考案は新規な構成にしてその実用上の効果は
著大である。 The present invention has a novel configuration and its practical effects are significant.

[Brief explanation of the drawing]

第１図は本考案に係るチエーンステー拡張器の
補助具を使用した状態を示す斜視図、第２図は本
考案に係るチエーンステー拡張器の補助具の分解
斜視図、第３図は底面図である。図面符号：１……基台、１ａ……脚部、１ｂ…
…肉厚部、１ｃ……凹溝、１ｄ……螺子孔、１ｅ
……螺子孔、２……当接部材、２ａ……支軸、２
ｂ……当接板、２ｃ……凹面、２ｄ……螺子穴、
２ｅ……端面、３……係止板、４……座金、５…
…螺子、６……螺子、７……螺子。 Fig. 1 is a perspective view showing the chain stay dilator auxiliary device according to the present invention in use, Fig. 2 is an exploded perspective view of the chain stay dilator auxiliary device according to the present invention, and Fig. 3 is a bottom view. It is. Drawing code: 1...Base, 1a...Legs, 1b...
...thick part, 1c...concave groove, 1d...screw hole, 1e
...Screw hole, 2...Abutting member, 2a...Spindle, 2
b...Abutment plate, 2c...Concave surface, 2d...Screw hole,
2e... end face, 3... locking plate, 4... washer, 5...
...screw, 6...screw, 7...screw.

Claims

[Scope of utility model claims]

The support shaft 2a protruding from the abutment plate 2b is loosely fitted into the groove 1c of the base 1, and the base 1 is provided with legs 1a, 1a so as to be fixed to the movable legs of the chain stay expander. A chain stay dilator auxiliary device characterized by: