CN104097720A - Injection molding type plastic bicycle - Google Patents
Injection molding type plastic bicycle Download PDFInfo
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- CN104097720A CN104097720A CN201310120376.1A CN201310120376A CN104097720A CN 104097720 A CN104097720 A CN 104097720A CN 201310120376 A CN201310120376 A CN 201310120376A CN 104097720 A CN104097720 A CN 104097720A
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Abstract
The invention discloses an injection molding type plastic bicycle. The injection molding type plastic bicycle comprises a front fork, a handlebar and a frame, which consist of connecting tubes; the connecting tubes of the front fork, the handlebar and the frame are made of engineering plastics and are formed through injection molding; structures for hanging and carrying accessories are arranged on all parts and are integrally formed with the parts through injection molding, and the problem that the accessories for the bicycle are loosened and fall off after long-time use is solved. The bicycle is made of the engineering plastics, the whole bicycle is light in weight, the shape of the bicycle can depend on an injection mold, the shapes of multiple concept bicycles are realized, and the rusting problem of the bicycle is avoided; the parts of the bicycle are manufactured through injection molding, raised ribs, grooves, connectors for installing the accessories and the like are convenient to design, and the problem that the accessories for the bicycle are easy to loosen after installation in the prior art is solved.
Description
Technical field
The present invention relates to bicycle field, specifically a kind of injection molding type plastic bicycle.
Background technology
Use bicycle as the vehicle not only environmental protection but also health, common is metal bicycle processed in the market, uses metal as material, manufacturing procedure is more, use traditional turnning and milling plane grinding process, also need more auxiliary welding processs, manufacturing process is comparatively complicated.Be limited by addition the impact of the course of processing, bicycle configuration design is subject to severely restricts.In addition, the annex of bicycle, as brake, the main mode of lock ring that adopts is fixed, and relies on the friction self-locking of fastening piece and handlebar transverse tube to meet fixing requirement, yet after long-term use, contact surface is because of water inlet corrosion, the clamping force of fastening piece reduces, and brake can become flexible, and to bicyclist, brings very large inconvenience.
Aspect change bicycle material, there is in the market the bicycle that carbon fiber formula thermoset material is made, this processing technology is used carbon cloth to be wound around, then the mode of thermoset forming.The bicycle that adopts this technique to make, for meeting the variation of caliber requirement attractive in appearance in profile, needs in technique to adjust.This type bicycle is except material cost height, and cost of manufacture is also very high, only on some high-grade bicycles, uses at present.Because its raised ribs position is difficult to realize by winding, its annex often still adopts the mode of lock ring to fix, and long-term use still exists loosening problem.
In addition, along with the application of up-to-date technology, the light equipments such as LED lamp, vehicle speed measurement and display equipment, attached suspension member etc. also will be applied to bicycle, and these new equipment need installation site, in existing bicycle, be difficult to solve the fixation problem of attendant equipment.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of injection molding type plastic bicycle, solves the problem that existing bicycle easy-to-rust, processed complex, cost of manufacture are high, be inconvenient to design annex fixed position.
Technical scheme of the present invention is:
A kind of injection molding type plastic bicycle, comprise the front fork being formed by connection pipe, handlebar and vehicle frame, described front fork, the connection pipe of handlebar and vehicle frame is engineering plastics, described engineering plastics are fiber-reinforced plastic, plastics in described fiber-reinforced plastic are selected polypropylene, polyethylene, polyvinylchloride, polymethyl methacrylate, polycarbonate, benzene alkene nitrile-butadiene-styrene, at least one in polyester terephthalate and polyamide, fiber is selected glass fibre, basalt fibre, carbon fiber, aramid fiber, at least one in polyster fibre and stainless steel fibre, this fiber-reinforced plastic is as the polyamide that can strengthen for polyethylene, carbon fiber reinforced polymethyl methacrylate, the aramid fiber that glass fibre strengthens, benzene alkene nitrile-butadiene-styrene that stainless steel fibre strengthens, the fine polyester terephthalate (REINFORCED PET as fine in carbon or carbon fiber enhanced PBT) etc. that strengthens of polycarbonate, glass enhancing polyester terephthalate (as glass REINFORCED PET, fiber glass reinforced PBT etc.) or carbon that basalt fibre strengthens,
Described front fork, handlebar and vehicle frame interconnect by metal insert, and metal insert is provided with the interface matching with Universal bicycle parts, front fork, handlebar and vehicle frame and metal insert integrated injection molding.
In the brake lever position of described handlebar, be provided with for connecting the stepping brake handle of brake lever and protrude muscle, protrude muscle and be provided with connecting screw hole.
In the place ahead of described handlebar central region, be provided with groove or the projection for light equipments such as mounted LED lamps.
Above described handlebar central region, be provided with for groove or the projection of the display equipments such as electronic display are installed.
On the support tube of described vehicle frame, be provided with for the frame tube portion raised ribs of kettle external member is installed, raised ribs is provided with connecting screw hole.
Beneficial effect of the present invention:
(1), the present invention adopts injection moulding mode to make bicycle assembly parts, the configuration design of parts has very large alerting ability, convenient directly design raised ribs, groove provide the interface of installation accessories, have solved the easy loosening problem of annex;
(2), engineering plastics parts of the present invention are to be made by plastics or fiber-reinforced plastic, can integrated injection molding, the profile of bicycle can determine by injection model, a lot of concept formula bicycle profiles are achieved; Whole manufacturing process is simple, and precision is controlled easily, can significantly boost productivity, and saves labour cost;
(3), engineering plastics parts of the present invention are to be made by plastics or fiber-reinforced plastic, can significantly reduce material cost and complete vehicle weight, and bicycle do not exist the problem of corrosion.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention 1 folding bicycle.
Fig. 2 is brake lever Local map in Fig. 1.
Fig. 3 is the structural representation of the embodiment of the present invention 2 shock-absorbing bicycles.
Fig. 4 is fixing kettle parts Local map in Fig. 3.
In figure, 1 is handlebar, 11 is handlebar instrument display board groove, 12 is that LED lamp is installed groove, and 13 is that stepping brake handle protrudes muscle, and 131 is metal nuts inserts, 132 is brake lever parts, 2 is front fork shank, and 3 is vehicle frame, and 31 is plastics vehicle frame folding position metal insert, 32 is frame tube portion raised ribs, and 33 is kettle external member.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
embodiment 1
See Fig. 1, a kind of injection molding type plastic folded bicycle, its handlebar 1, front fork shank 2, vehicle frame 3 all use engineering plastics.Its handlebar parts are reserved instrument display board groove 11, LED lamp is installed groove 12, stepping brake protruding muscle 13, handlebar can be reserved these annex installation sites when design, and the metal handle of using is now difficult to directly reserved these positions, protrude Tong Guo the welding of muscle and so on, but welding increases processing step on the one hand, one side affects outward appearance.Use injection molding type plastics handlebar, these structures are integrated injection moulding with handlebar main body, do not increase post-production, can significantly improve fixed effect again.See Fig. 2, the fixing circular boop using of general brake lever parts 132 directly connects the protrusion muscle 13 of design at bolt tightening place, limited the motion of all directions, and be fixed up brake lever position, has solved clamping force decline back brake loosening problem.Engineering plastics used select glass fiber enhanced nylon (polyamide PA) or the fine PA of enhancing of carbon to make, for example: the fiberglass reinforced PA 6, PA66, PA610, PA612, PA1212, the PA1012 that adopt fiber content 10%-50%.Such as 45% reinforced polyamide PA, its intensity can reach 206MPa, can meet the mechanical characteristics requirement of bicycle.
embodiment 2
See Fig. 3, a kind of injection molding type shock-absorbing bicycle, containing plastics handlebar 1, front fork, vehicle frame 3.See Fig. 4, it is made and adopts Shooting Technique.Adopt the fine PA of enhancing of fiberglass reinforced PA or carbon to make, for example: fine PA6, PA66, PA610, PA612, PA1212, the PA1012 of strengthening of carbon that adopts fiber content 10%-40%.See Fig. 4, plastics vehicle frame is reserved raised ribs 32, designs screw in raised ribs, coordinates with placement kettle external member 33.Adopt after the mode that directly designs protruding fixed position, raised ribs and vehicle frame integrated injection molding, integraty is good, even and destroy at extreme case lower convexity, do not affect the use of vehicle frame yet.It is material that each parts are used plastics, does not have the problem of corrosion.
Claims (6)
1. an injection molding type plastic bicycle, comprise the front fork being formed by connection pipe, handlebar and vehicle frame, it is characterized in that: described front fork, the connection pipe of handlebar and vehicle frame is engineering plastics, described engineering plastics are fiber-reinforced plastic, plastics in described fiber-reinforced plastic are selected polypropylene, polyethylene, polyvinylchloride, polymethyl methacrylate, polycarbonate, benzene alkene nitrile-butadiene-styrene, at least one in polyester terephthalate and polyamide, fiber is selected glass fibre, basalt fibre, carbon fiber, aramid fiber, at least one in polyster fibre and stainless steel fibre.
2. a kind of injection molding type plastic bicycle according to claim 1, it is characterized in that: described front fork, handlebar and vehicle frame interconnect by metal insert, metal insert is provided with the interface matching with Universal bicycle parts, front fork, handlebar and vehicle frame and metal insert integrated injection molding.
3. a kind of injection molding type plastic bicycle according to claim 1 and 2, is characterized in that: in the brake lever position of described handlebar, be provided with for connecting the stepping brake handle of brake lever and protrude muscle, protrude muscle and be provided with connecting screw hole.
4. a kind of injection molding type plastic bicycle according to claim 1 and 2, is characterized in that: in the place ahead of described handlebar central region, be provided with groove or the projection for light equipments such as mounted LED lamps.
5. a kind of injection molding type plastic bicycle according to claim 1 and 2, is characterized in that: above described handlebar central region, be provided with for groove or the projection of the display equipments such as electronic display are installed.
6. a kind of injection molding type plastic bicycle according to claim 1 and 2, is characterized in that: on the support tube of described vehicle frame, be provided with for the frame tube portion raised ribs of kettle external member is installed, raised ribs is provided with connecting screw hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310120376.1A CN104097720B (en) | 2013-04-09 | 2013-04-09 | A kind of injection molding type plastic bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310120376.1A CN104097720B (en) | 2013-04-09 | 2013-04-09 | A kind of injection molding type plastic bicycle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104097720A true CN104097720A (en) | 2014-10-15 |
| CN104097720B CN104097720B (en) | 2017-09-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310120376.1A Active CN104097720B (en) | 2013-04-09 | 2013-04-09 | A kind of injection molding type plastic bicycle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105061963A (en) * | 2015-07-24 | 2015-11-18 | 苏州天健竹业科技有限公司 | Preparation method for carbon fiber material for bicycle frame |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4838569A (en) * | 1988-04-25 | 1989-06-13 | Ford Thomas R | Bicycle |
| CN1103370A (en) * | 1993-11-04 | 1995-06-07 | 哈尔滨飞机制造公司 | Bicycle frame with carbon fiber composite structure |
| CN2324045Y (en) * | 1998-05-08 | 1999-06-16 | 于耀庆 | Carbon glass fibers bicycle |
| CN2335880Y (en) * | 1998-08-07 | 1999-09-01 | 清华大学 | Mixed controlled light motor-driven cycle |
| CN1400249A (en) * | 2001-08-01 | 2003-03-05 | 上海杰事杰新材料股份有限公司 | High-toughness glass fibre reinforced poly carbonate composite |
| CN2541301Y (en) * | 2002-04-04 | 2003-03-26 | 上海宝麒自行车有限公司 | Bicycle stand made of composite material |
| CN201026980Y (en) * | 2007-02-16 | 2008-02-27 | 王景辉 | Shaped structure of handle of carbon fiber bicycle |
-
2013
- 2013-04-09 CN CN201310120376.1A patent/CN104097720B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4838569A (en) * | 1988-04-25 | 1989-06-13 | Ford Thomas R | Bicycle |
| CN1103370A (en) * | 1993-11-04 | 1995-06-07 | 哈尔滨飞机制造公司 | Bicycle frame with carbon fiber composite structure |
| CN2324045Y (en) * | 1998-05-08 | 1999-06-16 | 于耀庆 | Carbon glass fibers bicycle |
| CN2335880Y (en) * | 1998-08-07 | 1999-09-01 | 清华大学 | Mixed controlled light motor-driven cycle |
| CN1400249A (en) * | 2001-08-01 | 2003-03-05 | 上海杰事杰新材料股份有限公司 | High-toughness glass fibre reinforced poly carbonate composite |
| CN2541301Y (en) * | 2002-04-04 | 2003-03-26 | 上海宝麒自行车有限公司 | Bicycle stand made of composite material |
| CN201026980Y (en) * | 2007-02-16 | 2008-02-27 | 王景辉 | Shaped structure of handle of carbon fiber bicycle |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105061963A (en) * | 2015-07-24 | 2015-11-18 | 苏州天健竹业科技有限公司 | Preparation method for carbon fiber material for bicycle frame |
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| Publication number | Publication date |
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| CN104097720B (en) | 2017-09-05 |
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