JPH01142396U - - Google Patents
Info
- Publication number
- JPH01142396U JPH01142396U JP3992988U JP3992988U JPH01142396U JP H01142396 U JPH01142396 U JP H01142396U JP 3992988 U JP3992988 U JP 3992988U JP 3992988 U JP3992988 U JP 3992988U JP H01142396 U JPH01142396 U JP H01142396U
- Authority
- JP
- Japan
- Prior art keywords
- crank
- bicycle
- pedal
- attach
- degrees
- 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
- 230000037431 insertion Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
Landscapes
- Transmission Devices (AREA)
Description
第１図はこの考案の平面図。第２図は組み立て
要部平面図。第３図は従来形式の組み立て要部平
面図。
１…クランク、１ａ…クランク部分、１ｂ…ク
ランク部分、１ｃ…クランク部分、１ｄ…クラン
ク部分、２…クランクシヤフト、３…ペダル、４
…ギヤ、５…チエーン、６…クランクシヤフト挿
入部、７…ペダル挿入部。
Figure 1 is a plan view of this idea. Figure 2 is a plan view of the main parts of the assembly. Figure 3 is a plan view of the main parts of the conventional assembly. 1... Crank, 1a... Crank part, 1b... Crank part, 1c... Crank part, 1d... Crank part, 2... Crankshaft, 3... Pedal, 4
...Gear, 5...Chain, 6...Crankshaft insertion part, 7...Pedal insertion part.
Claims (1)
ａ部分にペダル３の反対側の斜め横辺に、クラン
ク１ｂ部分の一端を角度約４５度に固着し、その
斜め方向に伸びたクランク１ｂ部分の適度の長さ
の処より、約９０度の方向にクランク１ｃ部分を
継続させる。そのクランク１ｃ部分の適度の長さ
の処から、クランク１を従来の自転車のペダル３
の位置まで折り返す。ついでクランク１ａ部分に
先に固着したクランク１ｂ部分の固着個所の反対
側横辺から、クランク１ｄをクランク１ｂ部分に
連携固着する。前記の、折り返したクランク１に
ペダル３を螺着した自転車のクランクを長くした
駆動装置。 Crank 1 inserted and screwed into crankshaft 2
Attach one end of the crank 1b part at an angle of about 45 degrees to the diagonally horizontal side opposite to the pedal 3 in part a, and attach it at an angle of about 90 degrees from a moderate length of the crank 1b part extending in the diagonal direction. Continue the crank 1c portion in the direction. From the appropriate length of the crank 1c part, connect the crank 1 to the pedal 3 of a conventional bicycle.
Fold back to the position. Next, the crank 1d is fixed to the crank 1b portion from the side opposite to the fixing point of the crank 1b portion which was first fixed to the crank 1a portion. The above-mentioned drive device is a bicycle crank with a lengthened bicycle crank in which the pedals 3 are screwed onto the folded crank 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3992988U JPH01142396U (en) | 1988-03-25 | 1988-03-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3992988U JPH01142396U (en) | 1988-03-25 | 1988-03-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01142396U true JPH01142396U (en) | 1989-09-29 |
Family
ID=31266411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3992988U Pending JPH01142396U (en) | 1988-03-25 | 1988-03-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01142396U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010202175A (en) * | 2009-03-05 | 2010-09-16 | Norihiko Ito | Chain ring, hexagonal spindle bolt, crank, rotation lever |
| JP2013212826A (en) * | 2012-04-02 | 2013-10-17 | Nobuyuki Kobayashi | Roughly dog leg-shaped crank shaft |
-
1988
- 1988-03-25 JP JP3992988U patent/JPH01142396U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010202175A (en) * | 2009-03-05 | 2010-09-16 | Norihiko Ito | Chain ring, hexagonal spindle bolt, crank, rotation lever |
| JP2013212826A (en) * | 2012-04-02 | 2013-10-17 | Nobuyuki Kobayashi | Roughly dog leg-shaped crank shaft |