CN2191810Y - Chain guard for variable-speed bicycle - Google Patents
Chain guard for variable-speed bicycle Download PDFInfo
- Publication number
- CN2191810Y CN2191810Y CN 94211719 CN94211719U CN2191810Y CN 2191810 Y CN2191810 Y CN 2191810Y CN 94211719 CN94211719 CN 94211719 CN 94211719 U CN94211719 U CN 94211719U CN 2191810 Y CN2191810 Y CN 2191810Y
- Authority
- CN
- China
- Prior art keywords
- guard
- arc section
- chain
- speed bicycle
- section
- 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.)
- Expired - Fee Related
Links
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- Gears, Cams (AREA)
Abstract
The utility model relates to a chain guard for a variable-speed bicycle, which is composed of a circular arc section and a straightline section. The upper guard of the is provided with a gap between the circular arc section and the straight line section, the circular arc section is provided with an installation hole, and a side plate is provided with an installation hole at the position of the gap. The utility model has the advantages of simple structure, low cost, convenient installation, and good effect.
Description
The utility model relates to a kind of cycle chain backplate, particularly a kind of variable speed bicycle chain-guard that can be installed on the derailleur derailleur.
At present, known cycle chain backplate generally has two kinds of enclosed and Unseal type to be used for ordinary vehicle type, adopt circular protective plate and the chain-guard that is used for derailleur, so only wear pants by bike the time or tight mouthful trousers could guarantee that the trousers angle does not contact fully with cycle chain.The application of CN2103497V, it is the application that covers about the variable speed bicycle chain, this chain guard is made up of for three sections arc section, the section of selling off, linear portion, the top of arc section cover bicycle drive sprocket, and the section of selling off covers the branch chain mechanism, linear portion covers the top chain that strides across driving and driven sprocket wheel, at least have on the chain guard two with bicycle frame on the joint that is connected, this is simple in structure, cost is low, but because of it is installed on the bicycle frame, so chain-guard can not move with derailleur.
The purpose of this utility model provides the movable cycle chain backplate of a kind of energy, and it is simple in structure, effective.
The purpose of this utility model is achieved in that
The utility model is made of arc section and linear portion, it is characterized in that: upper guard board has a gap between arc section and linear portion, and is provided with a mounting hole at arc section; Side plate is provided with a mounting hole in the gap position.Mounting hole on the side plate of gap position is oval, and its major axis and horizon angle are 30 °.Side plate can be provided with one section concave surface at linear portion and gap position.
Further specify below in conjunction with drawings and Examples:
Fig. 1 is a front view of the present utility model.
Fig. 2 is that the A-A of Fig. 1 is to section-drawing.
Fig. 3 is that the B-B of Fig. 1 is to section-drawing.
Fig. 4 is a birds-eye view of the present utility model.
Among the figure: 1, arc section, 2, upper guard board, 3, mounting hole, 4, gap, 5, mounting hole, 6, concave surface, 7, linear portion, 8, side plate.
See Fig. 1-4, the utility model constitutes one by arc section 1 and linear portion 7, the top of arc section 1 protection bicycle drive sprocket, and linear portion 7 protection stride across the chain of driving and driven sprocket wheel.Upper guard board 2 has a gap 4 between arc section and linear portion, it is used to place the preceding derailleur of variable speed bicycle, and upper guard board 2 is provided with a mounting hole 3 at arc section, and side plate 8 is provided with a mounting hole 5 in the gap position.This mounting hole 5 is oval, be convenient to adjust the position, being available bolt by mounting hole 3 and 5 is installed in chain-guard before the variable speed bicycle on the derailleur, chain-guard can move along with moving of derailleur, the major axis of slotted eye and horizon angle are 30 °, are convenient to be connected and fixed with derailleur, and side plate 8 can be provided with one section concave surface in linear portion 7 and gap 4 positions, it can increase side plate intensity on the one hand, can make appearance looks elegant on the other hand.
Because structure of the present utility model can make it be directly installed on the front derailleur of multi-speed bicycle, therefore it can move along with the movement of derailleur, where chain all plays sufficient protective action, and do not affect the normal operation of derailleur, have simple in structure, the characteristics that cost is low, easy for installation, effective.
Claims (3)
1, a kind of variable speed bicycle chain-guard is made of arc section and linear portion, it is characterized in that: upper guard board has a gap between arc section and linear portion, and is provided with a mounting hole at arc section; Side plate is provided with a mounting hole in the gap position.
2, variable speed bicycle chain-guard as claimed in claim 1 is characterized in that: mounting hole is for oval on the side plate of gap position, and its major axis and horizon angle are 30 °.
3, variable speed bicycle chain-guard as claimed in claim 1 is characterized in that: side plate can be provided with one section concave surface at linear portion and gap position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94211719 CN2191810Y (en) | 1994-05-06 | 1994-05-06 | Chain guard for variable-speed bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94211719 CN2191810Y (en) | 1994-05-06 | 1994-05-06 | Chain guard for variable-speed bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2191810Y true CN2191810Y (en) | 1995-03-15 |
Family
ID=33828764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94211719 Expired - Fee Related CN2191810Y (en) | 1994-05-06 | 1994-05-06 | Chain guard for variable-speed bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2191810Y (en) |
-
1994
- 1994-05-06 CN CN 94211719 patent/CN2191810Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |