CN203391925U - Bottom fork structure for motorcycle - Google Patents
Bottom fork structure for motorcycle Download PDFInfo
- Publication number
- CN203391925U CN203391925U CN201320369000.XU CN201320369000U CN203391925U CN 203391925 U CN203391925 U CN 203391925U CN 201320369000 U CN201320369000 U CN 201320369000U CN 203391925 U CN203391925 U CN 203391925U
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- CN
- China
- Prior art keywords
- bottom fork
- supervisor
- chain stay
- boxlike
- motorcycle
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- 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
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Abstract
The utility model discloses a bottom fork structure for a motorcycle. A left bottom fork main pipe (1) and a right bottom fork main pipe (2) are symmetrically arranged; the front parts of the left bottom fork main pipe and the right bottom fork main pipe are fixed through a connection transverse pipe (3); metal casings (4) are fixedly arranged at the front ends of the bottom fork main pipes; a mounting base assembly for a rear shock absorber (7) is arranged on the top face of the rear end of each bottom fork main pipe; bar through grooves (6) are symmetrically formed on the left pipe wall and the right pipe wall at the rear end of each bottom fork main pipe; and the connection transverse pipe (3) is a rectangular pipe. According to the bottom fork structure for the motorcycle provided by the utility model, the connection transverse pipe between the left and right bottom fork main pipes of the motorcycle is of a rectangular structure; the connection transverse pipe is inserted into a box-type reinforcing rib, so that the load bearing capacity of a bottom fork of the motorcycle is improved; the mounting sizes of the relevant components in the structure of the bottom fork are adjusted in accordance with the installation requirements of the motorcycle with a small wheel diameter and a large tire width; and the rear wheel with the small wheel diameter and the large tire width has a more reasonable installation interval through the adjustment of height difference of the rear wheel.
Description
Technical field
The utility model relates to a kind of motor bike member, the particularly bottom fork structure on motor bike.
Background technology
At present, between left and right two chain stays supervisor of motorcycle bottom fork, all adopt pipe as connecting transverse tube, and the cylindrical area of thrust surface of pipe itself are little, be subject to force intensity little, easily there is bending distortion, not only can affect the bearing load of motor bike, and after distortion, can affect again two distances between chain stay supervisor, and then change the loading angle of motorcycle rear shock reducing, affect damping effect.In addition, motor cycle rear wheel location structure is more fixing, for small-wheel-diameter, wide tire, is installing the problem that has clearance space deficiency, and on the road surface of jolting, trailing wheel cover panel easy and vehicle frame or motor bike interferes, thereby affects driving safety.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of motorcycle bottom fork structure that can effectively improve bearing load.
The technical solution of the utility model is as follows:
A kind of motorcycle bottom fork structure, left chain stay supervisor (1) and right chain stay supervisor (2) are symmetrical arranged, fixing by connecting transverse tube (3) between both front portions, front end every chain stay supervisor is all fixedly installed metal sleeve (4), on the end face of every chain stay supervisor rear end, be equipped with rear shock absorber mounting bracket assembly (7), and symmetry offers bar shaped groove (6) on the left and right tube wall of every chain stay supervisor rear end, described connection transverse tube (3) is rectangular tube.
The utility model changes connect transverse tube as rectangular tube into by traditional pipe, has increased the loaded area that connects the upper and lower two ends of transverse tube, can play a supporting role in the side that connects transverse tube fore-and-aft direction, thereby has effectively improved the bearing load ability of motorcycle bottom fork.
As preferably, described connection transverse tube (3) is nested in the cavity of boxlike reinforced rib (5), and the two ends, left and right of this boxlike reinforced rib (5) are welded and fixed with corresponding chain stay supervisor respectively.Adopt above structure, connecting transverse tube is nested in the cavity of boxlike reinforced rib, simultaneously, the two ends, left and right of boxlike reinforced rib are also welded and fixed with the chain stay supervisor of correspondence position, not only further increased loaded area, and take chain stay supervisor as support, and having improved bearing load, the stability of bottom fork structure is stronger.
As preferably, described boxlike reinforced rib (5) is opening cavity body forward, the front portion of this boxlike reinforced rib (5) upper box plate and the upper face laminating that is connected transverse tube (3), the front portion of the lower box plate of boxlike reinforced rib (5) and the lower face laminating that is connected transverse tube (3), and the front end face of boxlike reinforced rib (5) flushes with the front end face that is connected transverse tube (3); The back box plate of described boxlike reinforced rib (5) is connecting the rear side of transverse tube (3).Adopt above structure, the plate of box up and down of boxlike reinforced rib is fitted and connected respectively the upper and lower plates face of transverse tube, has increased the carrying thickness of bearing surface, and pressure resistance is strengthened, chain stay supervisor be connected transverse tube and mutually support not yielding.
As preferably, the middle part of described boxlike reinforced rib (5) back box plate is straight plate face, and this is straight, and the Ban Mian left and right sides is the inclined-plane extending back, and the inclined-plane of the right and left is "eight" shape.Adopt above structure, by the variation of support place loading angle and the prolongation of stressed contact surface, suffered bearing load evenly can be shared to chain stay supervisor above, avoid connecting transverse tube because of stressed concentrated deforming.
According to the utility model, will assemble the assembling requirement of vehicle, described left chain stay supervisor (1) is equal in length with right chain stay supervisor (2), and length L 1 is preferably 450～520mm.
In order to strengthen stressed bearing surface, improve stability under loading, meet the installation requirement of assembling vehicle small-wheel-diameter wide base tire trailing wheel used simultaneously, described left chain stay supervisor's (1) back segment and right chain stay supervisor's (2) back segment is the straight length being parallel to each other, and the madial wall spacing L2 of two straight lengths is preferably 200～230mm.
According to chain stay supervisor front end the width of corresponding installation site, the madial wall spacing L3 of metal sleeve (4) is preferably 150～170mm described in the right and left.
In order to meet the installation requirement of small-wheel-diameter wide base tire trailing wheel, improve the stability of rear wheel shock-absorbing device simultaneously, described rear shock absorber mounting bracket assembly (7) is " U " shape groove shape, and the groove center spacing L4 of rear shock absorber mounting bracket assembly (7) is preferably 205～235mm described in the right and left.
The drop value of installing in order to strengthen trailing wheel, the assemblage gap of increase small-wheel-diameter, wide base tire, better meets installation requirement, and the width L5 of described bar shaped groove (6) is preferably 12～16mm, and length L 6 is preferably 40～60mm.
In conjunction with the requirement of car load installation dimension, described bar shaped groove (6) is preferably 400～460mm with the width between centers L7 of homonymy metal pipe box (4).
Beneficial effect: the utility model changes the connection transverse tube between motor bike left and right chain stay supervisor into rectangular configuration, and connection transverse tube is nested in boxlike reinforced rib, improved the bearing load ability of motorcycle bottom fork, and according to the vehicle requirement that small-wheel-diameter, wide base tire are installed, associated components installation dimension in bottom fork structure is made an adjustment, by the adjustment poor to trailing wheel setting height(from bottom), make the trailing wheel assemblage gap of small-wheel-diameter, wide base tire more reasonable.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the front view of Fig. 1.
The specific embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail:
As depicted in figs. 1 and 2, motorcycle bottom fork structure comprises left chain stay supervisor 1, right chain stay supervisor 2, connects transverse tube 3, metal sleeve 4 and rear shock absorber mounting bracket assembly 7, left chain stay supervisor 1 and right chain stay supervisor 2 are symmetrical arranged, it is 2 equal in length that described left chain stay supervisor 1 and right chain stay are responsible for, length L 1 is 450～520mm, front end every chain stay supervisor is all fixedly installed metal sleeve 4, and the madial wall spacing L3 of metal sleeve 4 is 150～170mm described in the right and left.
Between described left chain stay supervisor 1 and right chain stay supervisor's 2 front portion, also by being connected transverse tube 3, fix, described connection transverse tube 3 adopts rectangular tube structure and is positioned at the rear side of metal sleeve 4, described connection transverse tube 3 is nested in the cavity of boxlike reinforced rib 5, described boxlike reinforced rib 5 is opening cavity body forward, the front portion of these boxlike reinforced rib 5 upper box plates and the upper face laminating that is connected transverse tube 3, the front portion of 5 times box plates of boxlike reinforced rib and the lower face laminating that is connected transverse tube 3, and the front end face of boxlike reinforced rib 5 flushes with the front end face that is connected transverse tube 3; The two ends, left and right of this boxlike reinforced rib 5 are welded and fixed with corresponding chain stay supervisor respectively; The back box plate of described boxlike reinforced rib 5 is connecting the rear side of transverse tube 3, and the middle part of described boxlike reinforced rib 5 back box plates is straight plate face, and this is straight, and the Ban Mian left and right sides is the inclined-plane extending back, and the inclined-plane of the right and left is "eight" shape.
Described left chain stay supervisor's 1 back segment and right chain stay supervisor's 2 back segment is the straight length being parallel to each other, the madial wall spacing L2 of two straight lengths is 200～230mm, on the end face of every chain stay supervisor rear end, be equipped with rear shock absorber mounting bracket assembly 7, described rear shock absorber mounting bracket assembly 7 is " U " shape groove shape, left and right sides cell wall is triangle, and the groove center spacing L4 of rear shock absorber mounting bracket assembly 7 is 205～235mm described in the right and left; On the left and right tube wall of every chain stay supervisor rear end, symmetry offers bar shaped groove 6, and the width L5 of described bar shaped groove 6 is 12～16mm, and length L 6 is 40～60mm, and described bar shaped groove 6 is 400～460mm with the width between centers L7 of homonymy metal pipe box 4.
It is same as the prior art that the utility model is not narrated part, and therefore not to repeat here.
Claims (10)
1. a motorcycle bottom fork structure, left chain stay supervisor (1) and right chain stay supervisor (2) are symmetrical arranged, fixing by connecting transverse tube (3) between both front portions, front end every chain stay supervisor is all fixedly installed metal sleeve (4), on the end face of every chain stay supervisor rear end, be equipped with rear shock absorber mounting bracket assembly (7), and on the left and right tube wall of every chain stay supervisor rear end, symmetry offers bar shaped groove (6), it is characterized in that: described connection transverse tube (3) is rectangular tube.
2. motorcycle bottom fork structure according to claim 1, is characterized in that: described connection transverse tube (3) is nested in the cavity of boxlike reinforced rib (5), and the two ends, left and right of this boxlike reinforced rib (5) are welded and fixed with corresponding chain stay supervisor respectively.
3. motorcycle bottom fork structure according to claim 2, it is characterized in that: described boxlike reinforced rib (5) is opening cavity body forward, the front portion of this boxlike reinforced rib (5) upper box plate and the upper face laminating that is connected transverse tube (3), the front portion of the lower box plate of boxlike reinforced rib (5) and the lower face laminating that is connected transverse tube (3), and the front end face of boxlike reinforced rib (5) flushes with the front end face that is connected transverse tube (3); The back box plate of described boxlike reinforced rib (5) is connecting the rear side of transverse tube (3).
4. motorcycle bottom fork structure according to claim 3, is characterized in that: the middle part of described boxlike reinforced rib (5) back box plate is straight plate face, and this is straight, and the Ban Mian left and right sides is the inclined-plane extending back, and the inclined-plane of the right and left is "eight" shape.
5. according to motorcycle bottom fork structure described in claim 1 or 2 or 3 or 4, it is characterized in that: described left chain stay supervisor (1) is equal in length with right chain stay supervisor (2), and length L 1 is 450～520mm.
6. motorcycle bottom fork structure according to claim 5, is characterized in that: described left chain stay supervisor's (1) back segment and right chain stay supervisor's (2) back segment is the straight length being parallel to each other, and the madial wall spacing L2 of two straight lengths is 200～230mm.
7. motorcycle bottom fork structure according to claim 1, is characterized in that: the madial wall spacing L3 of metal sleeve described in the right and left (4) is 150～170mm.
8. according to motorcycle bottom fork structure described in claim 1 or 6 or 7, it is characterized in that: described rear shock absorber mounting bracket assembly (7) is " U " shape groove shape, the groove center spacing L4 of rear shock absorber mounting bracket assembly (7) is 205～235mm described in the right and left.
9. motorcycle bottom fork structure according to claim 1, is characterized in that: the width L5 of described bar shaped groove (6) is 12～16mm, and length L 6 is 40～60mm.
10. motorcycle bottom fork structure according to claim 9, is characterized in that: described bar shaped groove (6) is 400～460mm with the width between centers L7 of homonymy metal pipe box (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320369000.XU CN203391925U (en) | 2013-06-26 | 2013-06-26 | Bottom fork structure for motorcycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320369000.XU CN203391925U (en) | 2013-06-26 | 2013-06-26 | Bottom fork structure for motorcycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203391925U true CN203391925U (en) | 2014-01-15 |
Family
ID=49903476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320369000.XU Expired - Fee Related CN203391925U (en) | 2013-06-26 | 2013-06-26 | Bottom fork structure for motorcycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203391925U (en) |
-
2013
- 2013-06-26 CN CN201320369000.XU patent/CN203391925U/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 | ||
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Chongqing seeworld Motorcycle Sales Co. Ltd. Assignor: Chongqing Yingang Technology (Group) Co., Ltd. Contract record no.: 2017500000007 Denomination of utility model: Motorcycle rear fork structure Granted publication date: 20140115 License type: Exclusive License Record date: 20170703 |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140115 Termination date: 20210626 |