CN201040566Y - Straddle type motorcycle frame - Google Patents
Straddle type motorcycle frame Download PDFInfo
- Publication number
- CN201040566Y CN201040566Y CNU2007201235298U CN200720123529U CN201040566Y CN 201040566 Y CN201040566 Y CN 201040566Y CN U2007201235298 U CNU2007201235298 U CN U2007201235298U CN 200720123529 U CN200720123529 U CN 200720123529U CN 201040566 Y CN201040566 Y CN 201040566Y
- Authority
- CN
- China
- Prior art keywords
- frame
- side arm
- pipe
- chain stay
- vehicle frame
- 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
Abstract
The utility model discloses a straddling type motorcycle frame and the front frame is relatively independent with the back frame. The front frame is welded with a vehicle scalp pipe and the back frame is respectively provided with a back damping support and a flattening folk axis installation hole. The back frame is a back frame which has an integrated structure of a cushion supporting frame and a flattening folk. The back frame is linked with the front frame by the flattening folk axis and one front end of a back shock absorber is linked with a back shock absorber support on the front frame. The back end of the back shock absorber is linked with the flattening folk part of the back frame and the three linking points forms a triangle. The front and the back frame of the utility model applies a flexibly connecting type, which changes the rigid integral structure of the present motorcycle frame, so the utility model can improve the damping effect and at the same time efficiently release the fatigue of the driver.
Description
Technical field
The utility model relates to a kind of frame of motorcycle, particularly a kind of straddle type motorcycle vehicle frame.
Background technology
Common straddle type motorcycle vehicle frame constitutes, mainly captive joint with the after-frame of back support seat cushion by the side arm of front portion suspension driving engine, constitute the integral structure vehicle frame of a rigidity, two-part captive joint generally is to adopt welding or riveted and fixed before and after it, to guarantee its rigidity and intensity; The side arm of vehicle frame by one hinged one independently chain stay hang trailing wheel, between the after-frame of trailing wheel and vehicle frame rear shock absorber is installed, when travelling with buffering from the impact of road.But, the integral structure vehicle frame of the rigidity of this front and back two parts captive joint, the rigidity that itself has because of its vehicle frame when motorcycle driving is sitting on the seat cushion driver, keeps a kind of stiff posture always, and is tired extremely easily; Although be provided with damping between after-frame and the trailing wheel, because the rigid unitary structure of two parts captive joint before and after the vehicle frame, cause easily as the cushion stroke of back damping is excessive that vehicle body leans forward when the excessive road traveling of concavo-convex fluctuating, influence is driven, cause the cushion stroke of damping shorter thus, the effect of its damping has also just reduced comparatively speaking.
Summary of the invention
The purpose of this utility model provides a kind of straddle type motorcycle vehicle frame, and its forward and backward the mode that employing flexibly connects changes the rigid unitary structure that has frame of motorcycle now, can effectively remove driver's fatigue when improving damping effect.
The purpose of this utility model is achieved in that vehicle frame comprises side arm, after-frame, its side arm is welded with head tube, described side arm, after-frame are relatively independent, the rear portion of side arm is respectively equipped with back damping support and bottom fork axis mounting hole, after-frame is the after-frame that seat cushion support frame and chain stay are structure as a whole, and after-frame is hinged by bottom fork axis and side arm, and what the back damping was supported on the front end of a rear shock absorber and the side arm is hinged, the chain stay portion of the rear end of rear shock absorber and after-frame is hinged, and its three hinge-points form triangle.
Owing to adopted such scheme, side arm, the after-frame of described vehicle frame are relatively independent, side arm, after-frame are hinged by bottom fork axis and rear shock absorber, formation has three hinge-points and flexibly connects state, when motor bike travels on unmade way, it makes from ground-surface impulsive force and can form between forward and backward around the relatively rotating of hinge-point, and the cushion stroke of rear shock absorber is prolonged; Simultaneously, the driver also along with forward and backward relatively rotate and heave and set changes posture, avoided for a long time being a kind of phenomenon of stiff posture, can remove driver's fatigue effectively, prevent the generation of accident in addition.The side arm of described vehicle frame is made of upper and lower beam pipe, can increase the intensity of side arm; Described underbeam pipe adopts the shape with the inconsistent bending of pipe of putting the beams in place, and can prevent distortion, and the intensity of vehicle frame is further improved.Described after-frame is the after-frame that seat cushion support frame and chain stay are structure as a whole, and can make the intensity enhancing of after-frame equally.
The utility model is simple in structure, the intensity height, and good damping effect, and also cost of manufacture is low.
The utility model is described in further detail below in conjunction with drawings and Examples.
Description of drawings
Accompanying drawing is a kind of embodiment scheme drawing of the present utility model.
In the accompanying drawing, 1 is trailing wheel, and 2 is seat cushion support frame, and 3 is diagonal ligament, and 4 is after-frame, and 5 is rear shock absorber, 6 is that back damping is supported, and 7 are following fine strain of millet, and 8 is last fine strain of millet, and 9 is side arm, and 10 is head tube, and 11 is front fork, 12 is front-wheel, and 14 is driving engine, and 15 is bottom fork axis, and 16 is connecting panel, and 17 is journal stirrup, and 18 is chain stay.
The specific embodiment
Referring to accompanying drawing, the vehicle frame of present embodiment comprises side arm 9, after-frame 4, and described side arm, after-frame are relatively independent.The front end of side arm 9 is welded with head tube 10, the rear portion of side arm 9 is respectively equipped with back damping support 6 and bottom fork axis mounting hole, the rear portion of side arm 9 is bent downwardly, its bending place is welded with a back damping that extends back and supports 6, this back damping is supported 6 and is provided with mounting hole, on the side arm 9 rear portion sections of being bent downwardly the bottom fork axis mounting hole is set, the tail end of the section of being bent downwardly is provided with the mounting hole that hangs driving engine.Described side arm 9 constitutes the beam pipe that perhaps described upper beam pipe is two symmetries, the beam pipe that following fine strain of millet pipe is two symmetries by 8, the underbeam pipes 7 of pipe of putting the beams in place.The front end of upper and lower beam pipe welds with head tube 10 respectively, the rear portion of upper beam pipe 8 is bent downwardly the bottom fork axis mounting hole is set, tail end is provided with the mounting hole that hangs driving engine, and the bending place welding back damping of the pipe 8 of putting the beams in place supports 6, and underbeam pipe 7 rear ends are welded in the section of being bent downwardly of the pipe 8 of putting the beams in place.Described down fine strain of millet pipe 7 is bent into and is similar to the S shape, is bent into last fine strain of millet pipe 8 that to be similar to L shaped shape inconsistent, the hole that the front overhang hanger is installed is set on the underbeam pipe 7 or the support that the front overhang hanger is installed is set.The after-frame that after-frame 4 is structure as a whole for seat cushion support frame 2 and chain stay 18, the bottom of described after-frame 4 is a chain stay 18, top is seat cushion support frame 2, the anterior K/UP of chain stay 18 also is welded into integral body with seat cushion support frame 2, weld diagonal ligament 3 between the K/UP section of seat cushion support frame 2 times and chain stay 18, be used to strengthen the intensity of seat cushion support frame 2.The upwards bending place of chain stay 18 is welded to connect plate 16, and connecting panel 16 is hinged with side arm 9 by the bottom fork axis 15 that passes bottom fork axis mounting hole on the side arm, makes after-frame 4 and side arm 9 hinged.The front end of a rear shock absorber 5 is hinged by the back damping support 6 on bearing pin and the side arm 9, and the rear end of rear shock absorber 5 is hinged by the installation journal stirrup 17 in the chain stay portion of bearing pin and after-frame 4.The mounting hole of the bottom fork axis mounting hole on the side arm 9, back damping support 6 and the hole of the installation journal stirrup 17 on the chain stay 18, these three hinge-points form triangle, because the cushion stroke that rear shock absorber 5 is had makes forward and backward of vehicle frame can do certain relatively rotating by Raoping fork shaft 15.
When this vehicle frame is installed motor bike, the trailing wheel 1 of motor bike is installed in the chain stay 18 of after-frame 4, the front-wheel 12 of motor bike be installed in head tube 10 pivotally attached front forks 11 in, captive joint with the mounting hole of the suspension driving engine of the tail end of side arm 9 sections of being bent downwardly by bolt in the rear end of driving engine 14, the front end of driving engine 14 be suspended on side arm bonded assembly front overhang hanger on.
The utility model is not limited to the foregoing description, as:
The after-frame of described vehicle frame also can be become to be similar to the pipe of U-shaped by the integrally bending of two symmetries, constitute by the horizontal support of welding between them, two U-shaped pipes are the shape setting of droping to the ground, the portion of extending back on its top is a seat cushion support frame, the portion of extending back of bottom is a chain stay, the curve of two U-shaped pipes is welded to connect plate and side arm is hinged by bottom fork axis, the bottom of the two U-shaped pipes welded and installed journal stirrup in the horizontal support of welding between the portion that extends back, the rear end of a rear shock absorber is hinged with the installation journal stirrup by bearing pin, back damping on the front end of rear shock absorber and the vehicle frame side arm is supported hinged, before can constituting equally, the frame of motorcycle that after-frame flexibly connects.
The side arm of described vehicle frame also can adopt a beam pipe, the rear portion of this beam pipe is bent downwardly the bottom fork axis mounting hole is set, tail end is provided with the mounting hole that hangs driving engine, the bending place welding back damping of beam pipe is supported, and the front portion of beam pipe is provided with the hole that the front overhang hanger is installed or the support that the front overhang hanger is installed is set.
Claims (6)
1. straddle type motorcycle vehicle frame, vehicle frame comprises side arm, after-frame, its side arm is welded with head tube, it is characterized in that: described side arm, after-frame are relatively independent, the rear portion of side arm is respectively equipped with back damping support and bottom fork axis mounting hole, after-frame is the after-frame that seat cushion support frame and chain stay are structure as a whole, after-frame is hinged by bottom fork axis and side arm, what the back damping was supported on the front end of a rear shock absorber and the side arm is hinged, the chain stay portion of the rear end of rear shock absorber and after-frame is hinged, and its three hinge-points form triangle.
2. straddle type motorcycle vehicle frame according to claim 1 is characterized in that: the rear portion of described side arm is bent downwardly, and its bending place has the back damping that extends back to be supported, and the bottom fork axis mounting hole is set on the section of being bent downwardly of rear portion.
3. straddle type motorcycle vehicle frame according to claim 2, it is characterized in that: described side arm is made of upper and lower beam pipe, the front end of upper and lower beam pipe welds with head tube respectively, the pipe rear portion section of being bent downwardly of putting the beams in place is provided with the bottom fork axis mounting hole, the bending place welding back damping of upper beam pipe is supported, and underbeam pipe rear end is welded in the section of being bent downwardly of upper beam pipe.
4. straddle type motorcycle vehicle frame according to claim 3 is characterized in that: the beam pipe that described upper beam pipe is two symmetries, underbeam pipe are the beam pipe of two symmetries.
5. straddle type motorcycle vehicle frame according to claim 1, it is characterized in that: the bottom of described after-frame is a chain stay, top is seat cushion support frame, the anterior K/UP of chain stay also welds with seat cushion support frame, seat cushion support frame welds diagonal ligament down and between the K/UP section of chain stay, the upwards bending place of chain stay is welded to connect plate, and connecting panel is hinged by bottom fork axis and side arm.
6. straddle type motorcycle vehicle frame according to claim 1, it is characterized in that: described after-frame is become the pipe of U-shaped by the integrally bending of two symmetries, constitute by the horizontal support of welding between them, the top portion of extending back of two U-shaped pipes is a seat cushion support frame, the bottom portion of extending back of two U-shaped pipes is a chain stay, the curve of two U-shaped pipes is welded to connect plate, and connecting panel and side arm are hinged by bottom fork axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201235298U CN201040566Y (en) | 2007-02-06 | 2007-02-06 | Straddle type motorcycle frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201235298U CN201040566Y (en) | 2007-02-06 | 2007-02-06 | Straddle type motorcycle frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201040566Y true CN201040566Y (en) | 2008-03-26 |
Family
ID=39252275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201235298U Expired - Fee Related CN201040566Y (en) | 2007-02-06 | 2007-02-06 | Straddle type motorcycle frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201040566Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102556254A (en) * | 2012-02-29 | 2012-07-11 | 胡达广 | Rear shock damping system of separate motorcycle |
-
2007
- 2007-02-06 CN CNU2007201235298U patent/CN201040566Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102556254A (en) * | 2012-02-29 | 2012-07-11 | 胡达广 | Rear shock damping system of separate motorcycle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080326 Termination date: 20150206 |
|
| EXPY | Termination of patent right or utility model |