JPS6248892U - - Google Patents
Info
- Publication number
- JPS6248892U JPS6248892U JP14072885U JP14072885U JPS6248892U JP S6248892 U JPS6248892 U JP S6248892U JP 14072885 U JP14072885 U JP 14072885U JP 14072885 U JP14072885 U JP 14072885U JP S6248892 U JPS6248892 U JP S6248892U
- Authority
- JP
- Japan
- Prior art keywords
- arm
- toothed belt
- bicycle
- drive device
- belt tensioning
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000001154 acute effect Effects 0.000 claims 1
Landscapes
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Description
第１図は本案を実施した自転車の立面図、第２
図は要部の拡大斜視図、第３図はアームにばねを
付加した実施例の部分拡大立面図である。
１……自転フレーム、３……アーム、５……駆
動プーリ軸、６……駆動プーリ、７……クランク
ペダル、８……後輪従動プーリ、９……歯付ベル
ト、１１〜１７……歯付ベルト緊張手段。
Figure 1 is an elevation view of the bicycle on which this proposal was implemented, Figure 2
The figure is an enlarged perspective view of the main part, and FIG. 3 is a partially enlarged elevational view of an embodiment in which a spring is added to the arm. 1... Rotating frame, 3... Arm, 5... Drive pulley shaft, 6... Drive pulley, 7... Crank pedal, 8... Rear wheel driven pulley, 9... Toothed belt, 11-17... Toothed belt tensioning means.
Claims (1)
、自転車フレーム下部に基端を回動可能に枢支し
たアームの先端に回転自由に軸承し、駆動プーリ
と後輪従動プーリとに歯付ベルトを掛け、歯付ベ
ルトを緊張させたとき、アームの枢支点と後輪従
動プーリの中心とを結ぶ直線に対し、前記枢支点
と駆動プーリ軸中心とを結ぶ直線が斜め前上方へ
鋭角をなして傾斜し、アームに歯付ベルト緊張手
段を設けてなる自転車駆動装置。 (2) 歯付ベルト緊張手段がアーム先端に作用す
る回転部分の自重である実用新案登録請求の範囲
第１項記載の自転車駆動装置。 (3) 歯付ベルト緊張手段がアームと自転車フレ
ーム間に設けた弾性体である実用新案登録請求の
範囲第１項記載の自転車駆動装置。[Scope of Claim for Utility Model Registration] (1) A drive pulley shaft to which a crank pedal is fixed is rotatably supported at the tip of an arm whose base end is rotatably supported at the bottom of the bicycle frame, and the drive pulley and rear wheel When a toothed belt is applied to the driven pulley and the toothed belt is tensioned, the straight line connecting the pivot point and the center of the drive pulley shaft is different from the straight line connecting the pivot point of the arm and the center of the rear wheel driven pulley. A bicycle drive device that is inclined diagonally forward and upward at an acute angle, and has a toothed belt tensioning device provided on the arm. (2) The bicycle drive device according to claim 1, wherein the toothed belt tensioning means is the own weight of the rotating part acting on the tip of the arm. (3) The bicycle drive device according to claim 1, wherein the toothed belt tensioning means is an elastic body provided between the arm and the bicycle frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14072885U JPS6248892U (en) | 1985-09-17 | 1985-09-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14072885U JPS6248892U (en) | 1985-09-17 | 1985-09-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6248892U true JPS6248892U (en) | 1987-03-26 |
Family
ID=31047850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14072885U Pending JPS6248892U (en) | 1985-09-17 | 1985-09-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6248892U (en) |
-
1985
- 1985-09-17 JP JP14072885U patent/JPS6248892U/ja active Pending
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