JPS6437793U - - Google Patents
Info
- Publication number
- JPS6437793U JPS6437793U JP13354987U JP13354987U JPS6437793U JP S6437793 U JPS6437793 U JP S6437793U JP 13354987 U JP13354987 U JP 13354987U JP 13354987 U JP13354987 U JP 13354987U JP S6437793 U JPS6437793 U JP S6437793U
- Authority
- JP
- Japan
- Prior art keywords
- sprocket
- diameter sprocket
- small
- diameter
- reference tooth
- 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
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Gears, Cams (AREA)
Description
第１図は本考案の一実施例の側面図、第２図お
よび第３図は本考案の他の実施例の側面図、第４
図、第５図、第６図および第８図は従来例の作動
説明図、第７図は第６図の方向矢視図である。
ＣＷ……自転車用多段スプロケツト装置、ｓ１
……大径スプロケツト、ｓ２……小径スプロケツ
ト、Ｏ１……大径スプロケツトの歯間中心、Ｏ２
……小径スプロケツトの基準歯間中心、ｌ……接
線。
FIG. 1 is a side view of one embodiment of the present invention, FIGS. 2 and 3 are side views of other embodiments of the present invention, and FIG.
, FIG. 5, FIG. 6, and FIG. 8 are explanatory diagrams of the operation of the conventional example, and FIG. 7 is a view taken in the direction of the arrow in FIG. 6. CW...bicycle multi-stage sprocket device, s1
... Large diameter sprocket, s2 ... Small diameter sprocket, O 1 ... Center between teeth of large diameter sprocket, O 2
...Reference tooth center of small diameter sprocket, l... Tangent line.
Claims (1)
も１枚の小径スプロケツトをもつ自転車用多段ス
プロケツト装置であつて、互いに隣接する大径ス
プロケツトと小径スプロケツトにおいて、大径ス
プロケツトの一つの基準歯間中心と、これから小
径スプロケツトに下ろした接線上の小径スプロケ
ツトの基準歯間中心との距離がｎｐ＋α（ただし
、ｐはチエンピツチ、ｎは整数、αはチエンのロ
ーラピン間内法寸法より小さい寸法。）である場
合の上記大径スプロケツトの上記基準歯間中心と
小径スプロケツトの上記基準歯間中心の一方また
は双方の近傍の歯を、通常の歯より回転方向歯幅
の小さい歯としたことを特徴とする、自転車用多
段スプロケツト装置。 A multi-stage sprocket device for bicycles having at least one large-diameter sprocket and at least one small-diameter sprocket, wherein the large-diameter sprocket and the small-diameter sprocket are adjacent to each other, and the center of one reference tooth interval of the large-diameter sprocket is connected to the small-diameter sprocket. If the distance between the small diameter sprocket and the reference tooth center on the tangent line lowered onto the sprocket is np+α (where p is the chain pitch, n is an integer, and α is the dimension smaller than the internal dimension between the roller pins of the chain). A multi-stage sprocket for a bicycle, characterized in that teeth near one or both of the reference tooth center of the diameter sprocket and the reference tooth center of the small diameter sprocket are teeth with a tooth width smaller in the rotational direction than normal teeth. Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13354987U JPS6437793U (en) | 1987-09-01 | 1987-09-01 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13354987U JPS6437793U (en) | 1987-09-01 | 1987-09-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6437793U true JPS6437793U (en) | 1989-03-07 |
Family
ID=31391512
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13354987U Pending JPS6437793U (en) | 1987-09-01 | 1987-09-01 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6437793U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1990009308A1 (en) * | 1989-02-15 | 1990-08-23 | Maeda Industries, Ltd. | Multi-stage chain wheel for bicycle |
| EP0439051A1 (en) * | 1990-01-20 | 1991-07-31 | Shimano Inc. | Multistage sprocket assembly |
-
1987
- 1987-09-01 JP JP13354987U patent/JPS6437793U/ja active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1990009308A1 (en) * | 1989-02-15 | 1990-08-23 | Maeda Industries, Ltd. | Multi-stage chain wheel for bicycle |
| US5133695A (en) * | 1989-02-15 | 1992-07-28 | Maeda Industries, Ltd. | Bicycle multiple chainwheel |
| EP0439051A1 (en) * | 1990-01-20 | 1991-07-31 | Shimano Inc. | Multistage sprocket assembly |
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