CN105221553A - A kind of bicycle brake line - Google Patents
A kind of bicycle brake line Download PDFInfo
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- CN105221553A CN105221553A CN201510680297.5A CN201510680297A CN105221553A CN 105221553 A CN105221553 A CN 105221553A CN 201510680297 A CN201510680297 A CN 201510680297A CN 105221553 A CN105221553 A CN 105221553A
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- braking string
- surrounding layer
- layer
- carbon fiber
- internal lining
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Abstract
The present invention relates to a kind of bicycle brake line.The internal lining pipe (2) that it comprises surrounding layer (1), two side by side parallel are arranged and two windings spring (3), described braking string body (4) comprises carbon fiber heart yearn group (4.1) and the outer field resin layer (4.2) of internal layer, one end of described outer sleeve (5) is arranged on surrounding layer (1), the other end axially stretches out along surrounding layer (1) and is arranged on braking string body (4), and the surface of described surrounding layer (1) is coated with oxidation resistant coating.A kind of bicycle brake line of the present invention, its internal lining pipe ensures that two braking string are isometric, two braking string body uniform force when ensureing to brake; Simultaneously braking string this body formed simple, quality is light, resistance to chemical attack, good weatherability, cost of production are low; And outer sleeve energy available protecting braking string end-fitting part wears; The surface of surrounding layer is provided with oxidation resistant coating, ensure that the normal use of braking string.
Description
Technical field
The present invention relates to a kind of braking string, for bicycle brake system.Belong to bicycle accessories field.
Background technique
Bicycle brake system comprises brake lever, braking string, the accessories such as brake binder, before the brake system of prior art is typically provided with one, one latter two braking string and corresponding with it two brake levers and two brake binders, braking string easily ruptures in use for some time, cause brake failure, potential safety hazard is higher, for solving the problems of the technologies described above the two-wire brake system needing use two front brake fares and two rear brake fares, two front brake fares of this brake system need length consistent, two braking string body uniform force during to ensure to brake, but two separate braking string bodies cannot ensure that length is consistent, also there is certain difficulty in assembling.
Existing braking string body is made up of the hollow tubular of outside rubber and the steel wire of inside simultaneously, and its insufficient strength is high, and resistance to chemical corrosion is poor, and weatherability is bad, and cost of production is higher; Its end of the surrounding layer of existing braking string is not owing to having outer sleeve, and therefore braking string end-fitting part is is easily worn and torn, and have impact on the using effect of brake system.
Existing braking string long term exposure in the environment, can cause its surface oxidized, thus it is blunt, delayed that braking string is braked, and has potential safety hazard.
Summary of the invention
The object of the invention is to overcome above-mentioned deficiency, provide a kind of bicycle brake line, the internal lining pipe of this braking string ensures that two braking string are isometric, two braking string body uniform force when ensureing to brake; Simultaneously braking string this body formed simple, quality is light, resistance to chemical attack, good weatherability, cost of production are low; And outer sleeve energy available protecting braking string end-fitting part wears; And braking string can be effectively anti-oxidant, therefore available protecting braking string body, ensure that the normal use of braking string.
The object of the present invention is achieved like this:
A kind of bicycle brake line, be characterized in: described braking string comprises surrounding layer, the internal lining pipe of two side by side parallel settings and two winding springs, the length of two internal lining pipes is equal, braking string body is provided with in described internal lining pipe, two are wound around the outer wall that spring is wrapped in internal lining pipe respectively, surrounding layer is coated on two and is wound around outside spring, described braking string body comprises the carbon fiber heart yearn group of internal layer and outer field resin layer, one end of described outer sleeve is arranged on surrounding layer, the other end axially stretches out along surrounding layer and is arranged on braking string body, the surface of described surrounding layer is coated with oxidation resistant coating, described oxidation resistant coating comprises the chromium of 11-14wt%, the cobalt of 11-14wt%, the aluminium of 7.5-9.5wt%, the yttrium of 0.20-0.60wt%, the hafnium of 0.10-0.50wt%, the silicon of 0.10-0.30wt%, the zirconium of 0.10-0.20wt%, and the nickel of surplus.
A kind of bicycle brake line of the present invention, its carbon fiber heart yearn group is made up of multi-beam carbon-fiber heart yearn, comprises 1000 ~ 200000 carbon fibers in every a branch of carbon fiber core, and the diameter of every root carbon fiber is 5 ~ 15 microns.
A kind of bicycle brake line of the present invention, its resin layer is that polyamide 6 or polyamide 66 or PPTA resinous layer material are made.
Compared with prior art, the invention has the beneficial effects as follows:
A kind of bicycle brake line of the present invention, its internal lining pipe ensures that two braking string bodies are isometric, two braking string body uniform force when ensureing to brake; A kind of braking string of the present invention, its braking string body is made carbon fiber heart yearn group and is coated on the resin layer outside carbon fiber heart yearn group, obtained braking string this body formed simple, quality is light, resistance to chemical attack, good weatherability, cost of production are low; And outer sleeve energy available protecting braking string end-fitting part wears; Surrounding layer surface is coated with antioxidant layer, and therefore available protecting braking string body, ensure that the normal use of braking string.
Accompanying drawing explanation
Fig. 1 is the sectional view of a kind of bicycle brake line of the present invention.
Fig. 2 is the structural representation of braking string body of the present invention.
Fig. 3 is the A-A sectional drawing in Fig. 2.
Fig. 4 is the structural representation of joint of the present invention.
In figure:
Surrounding layer 1,
Internal lining pipe 2,
Be wound around spring 3,
Braking string body 4,
Carbon fiber heart yearn group 4.1,
Resin layer 4.2,
Outer sleeve 5.
Embodiment
See Fig. 1, the present invention relates to a kind of bicycle brake line, comprise internal lining pipe 2 and two winding springs 3 of surrounding layer 1, two side by side parallel settings, the length of two internal lining pipes 2 is equal, braking string body 4 is provided with in described internal lining pipe 2, two are wound around the outer wall that spring 3 is wrapped in internal lining pipe 2 respectively, and surrounding layer 1 is coated on two and is wound around outside spring 3.
See Fig. 2-3, described braking string body 4 comprises carbon fiber heart yearn group 4.1 and the outer field resin layer 4.2 of internal layer, described carbon fiber heart yearn group 4.1 is made up of multi-beam carbon-fiber heart yearn, 1000 ~ 200000 carbon fibers are comprised in every a branch of carbon fiber core, the diameter of every root carbon fiber is 5 ~ 15 microns, described resin layer 4.2 is preferably by PA6(polyamide 6), PA66(polyamide 66) and PPA(PPTA resin layer) the good resin material of weatherability makes, to improve braking string working life.
See Fig. 4, one end of described outer sleeve 5 is arranged on surrounding layer 1, and the other end axially stretches out along surrounding layer 1 and is arranged on braking string body 4.
The surface of described surrounding layer 1 is coated with oxidation resistant coating, and described oxidation resistant coating comprises the nickel of the chromium of 11-14wt%, the cobalt of 11-14wt%, the aluminium of 7.5-9.5wt%, the yttrium of 0.20-0.60wt%, the hafnium of 0.10-0.50wt%, the silicon of 0.10-0.30wt%, the zirconium of 0.10-0.20wt% and surplus.Can find out from above-mentioned composition, it has the aluminium content of reduction, and this decreases the formation of SRZ in the alloy being easy to formation SRZ.
In oxidation resistant coating, more aluminium may produce reaction zone problem, and less aluminium can not provide enough aluminium to maintain good protection class.Less active element (Y, Hf, Si and Zr) may improve oxidation kinetics, and more active element may cause short circuit to be oxidized.More chromium may reduce leading phase, γ phase (gammaprime), and less chromium may damage corrosion and heat resistant.Composition for the extremely suitable of oxidation resistant coating is positioned in the middle of above-mentioned scope just.
Braking string body 4 of the present invention once-through, in the process of preparation braking string body, the head of extruder, through a branch of continuous print carbon fiber, makes braking string body 4 from the resin layer 4.2 carbon fiber heart yearn group 4.1 that is coated on tightly of extruder molten state out.
The diameter of carbon fiber heart yearn group 4.1 can control for the hauling speed of drawing carbon fiber heart yearn tractor by regulating, and then according to required length, continuous print braking string body is sheared.
The density of carbon fiber heart yearn group 4.1 of the present invention is low, and it is 1.76 ~ 1.8g/cm
3, and traditional stainless density as braking string body is 7.5 ~ 8g/cm
3, carbon fiber heart yearn has high specific strength simultaneously, and make the braking string of same thickness, the intensity of carbon fiber heart yearn is far above stainless intensity, and weight is 1/4th of stainless steel braking string.
In addition, the resistance to chemical attack of carbon fiber heart yearn, good weatherability, low cost of manufacture.
Installation process: inserted in two internal lining pipes be arranged side by side 2 respectively by two braking string bodies 4 during assembling, be then connected with bicycle brake handle one end of two braking string bodies 4, the other end is connected with braking binder of bicycle.The length of two internal lining pipes 2 unanimously can ensure that braking string body 4 length is consistent, two braking string body uniform force when braking, and this structure is more convenient at fit on compared with two separate internal lining pipes, and profile is cleaner and tidier, attractive in appearance.
Claims (3)
1. a bicycle brake line, it is characterized in that: described braking string comprises surrounding layer (1), the internal lining pipe (2) of two side by side parallel settings and two windings spring (3), the length of two internal lining pipes (2) is equal, braking string body (4) is provided with in described internal lining pipe (2), two are wound around the outer wall that spring (3) is wrapped in internal lining pipe (2) respectively, surrounding layer (1) is coated on two and is wound around spring (3) outward, described braking string body (4) comprises carbon fiber heart yearn group (4.1) and the outer field resin layer (4.2) of internal layer, one end of described outer sleeve (5) is arranged on surrounding layer (1), the other end axially stretches out along surrounding layer (1) and is arranged on braking string body (4), the surface of described surrounding layer (1) is coated with oxidation resistant coating, described oxidation resistant coating comprises the chromium of 11-14wt%, the cobalt of 11-14wt%, the aluminium of 7.5-9.5wt%, the yttrium of 0.20-0.60wt%, the hafnium of 0.10-0.50wt%, the silicon of 0.10-0.30wt%, the zirconium of 0.10-0.20wt%, and the nickel of surplus.
2. a kind of bicycle brake line according to claim 1, it is characterized in that: described carbon fiber heart yearn group (4.1) is made up of multi-beam carbon-fiber heart yearn, comprise 1000 ~ 200000 carbon fibers in every a branch of carbon fiber core, the diameter of every root carbon fiber is 5 ~ 15 microns.
3. a kind of bicycle brake line according to claim 1, is characterized in that: described resin layer (4.2) is made for polyamide 6 or polyamide 66 or PPTA resinous layer material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510680297.5A CN105221553A (en) | 2015-10-21 | 2015-10-21 | A kind of bicycle brake line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510680297.5A CN105221553A (en) | 2015-10-21 | 2015-10-21 | A kind of bicycle brake line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105221553A true CN105221553A (en) | 2016-01-06 |
Family
ID=54990725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510680297.5A Pending CN105221553A (en) | 2015-10-21 | 2015-10-21 | A kind of bicycle brake line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105221553A (en) |
-
2015
- 2015-10-21 CN CN201510680297.5A patent/CN105221553A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160106 |
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| WD01 | Invention patent application deemed withdrawn after publication |