CN202827970U - Short carbon fiber bicycle crank - Google Patents
Short carbon fiber bicycle crank Download PDFInfo
- Publication number
- CN202827970U CN202827970U CN 201220359239 CN201220359239U CN202827970U CN 202827970 U CN202827970 U CN 202827970U CN 201220359239 CN201220359239 CN 201220359239 CN 201220359239 U CN201220359239 U CN 201220359239U CN 202827970 U CN202827970 U CN 202827970U
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- CN
- China
- Prior art keywords
- carbon fiber
- short carbon
- crank
- matrix
- short
- 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 - Lifetime
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Abstract
A short carbon fiber bicycle crank comprises a short carbon fiber crank matrix and a carbon fiber cloth surface layer. The short carbon fiber crank matrix is of a hollow structure which is formed by injection moulding of high strength carbon fiber composite particles in an injection moulding machine. The carbon fiber cloth surface layer is glued on the outer surface of the short carbon fiber crank matrix. According to the short carbon fiber bicycle crank, the short carbon fiber crank matrix which is formed by the injection moulding of the high strength carbon fiber composite particles is adopted and a layer of carbon fiber cloth is glued on the outer surface of the short carbon fiber crank matrix, and therefore the appearance of the short carbon fiber bicycle crank is good and manual polishing is not needed. Production efficiency is improved, cost and labor intensity of operation personnel are reduced and work environment is improved.
Description
Technical field
The utility model belongs to technical field of bicycles, particularly relates to a kind of short carbon fiber bicycle crank.
Background technology
Crank is a kind of rod component that is connected between bicycle middle shaft and the pedal.High-grade bicycle adopts the carbon fiber crank mostly at present.Carbon fiber crank production method commonly used is at first in mould multilayer to be pasted into the blank with crank profile through the carbon cloth of cutting, then blank is made through the high-temperature pressurizing typing.But, there is following point in this carbon fiber crank: because the carbon fiber crank profile that this method is produced is relatively poor, therefore the finished product after the above-mentioned processing manually need to be carried out reconditioning, so production efficiency is low, cost of labor is high, and the labour intensity of operating personal is large, poor working environment.
Summary of the invention
In order to address the above problem, the purpose of this utility model is to provide a kind of good looking appearance and intensity can satisfy the short carbon fiber bicycle crank of operating needs.
In order to achieve the above object, the short carbon fiber bicycle crank that provides of the utility model comprises short carbon fiber crank matrix and carbon cloth top layer; Wherein short carbon fiber crank matrix is the hollow structure of being made through injection mo(u)lding in injection moulding machine by high strength short carbon fiber material particle; The carbon cloth surface layer adhesive is bonded on the outside face of short carbon fiber crank matrix.
Described short carbon fiber bicycle crank comprises that also standoff distance is arranged on the vertical and horizontal reinforced rib of short carbon fiber crank matrix inside.
The short carbon fiber bicycle crank that the utility model provides is to utilize high strength short carbon fiber material particle to be injection molded into short carbon fiber crank matrix, then at the gluing one deck carbon cloth of the outside face of short carbon fiber crank matrix.Because the short carbon fiber bicycle crank profile that adopts this technique to make is good, therefore need not to carry out artificial reconditioning, so can enhance productivity, reduce the labour intensity of cost and operating personal, improve working environment.
Description of drawings
The short carbon fiber crank construction for bicycle schematic diagram that Fig. 1 provides for the utility model.
Fig. 2 be among Fig. 1 A-A to cutaway view.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the short carbon fiber bicycle crank that the utility model provides is elaborated.
As shown in Figure 1 and Figure 2, the short carbon fiber bicycle crank that provides of the utility model comprises short carbon fiber crank matrix 1 and carbon cloth top layer 2; Wherein short carbon fiber crank matrix 1 is the hollow structure of being made through injection mo(u)lding in injection moulding machine by high strength short carbon fiber material particle; Carbon cloth top layer 2 is adhesive on the outside face of short carbon fiber crank matrix 1.
Described short carbon fiber bicycle crank comprises that also standoff distance is arranged on the vertical and horizontal reinforced rib 3 of short carbon fiber crank matrix 1 inside.
The short carbon fiber bicycle crank production method that now the utility model is provided is described below: at first high strength short carbon fiber material particle is injection molded into short carbon fiber crank matrix 1 in injection moulding machine, then gluing one deck carbon cloth and make carbon cloth top layer 2 on the outside face of above-mentioned short carbon fiber crank matrix 1 is made the short carbon fiber bicycle crank finally by high-temperature shaping.This is because the tensile strength of carbon fiber crank matrix 1 only has 280Mpa, therefore can not satisfy operating needs, in order to improve intensity at the gluing one deck carbon cloth of its outside face, can make at last tensile strength reach 450Mpa, therefore be enough to satisfy the operating needs of bicycle crank.In addition, in order to improve the rigidity of short carbon fiber bicycle crank, can at first in mould, make vertical and horizontal reinforced rib 3, then make according to the method described above again short carbon fiber crank matrix 1 in the outside of vertical and horizontal reinforced rib 3, last gluing one deck carbon cloth on the outside face of above-mentioned short carbon fiber crank matrix 1 and make carbon cloth top layer 2 is made the short carbon fiber bicycle crank finally by high-temperature shaping.
Claims (2)
1. short carbon fiber bicycle crank, it is characterized in that: described short carbon fiber bicycle crank comprises short carbon fiber crank matrix (1) and carbon cloth top layer (2); Wherein short carbon fiber crank matrix (1) is the hollow structure of being made through injection mo(u)lding in injection moulding machine by high strength short carbon fiber material particle; Carbon cloth top layer (2) is adhesive on the outside face of short carbon fiber crank matrix (1).
2. short carbon fiber bicycle crank according to claim 1 is characterized in that: described short carbon fiber bicycle crank comprises that also standoff distance is arranged on the inner vertical and horizontal reinforced rib (3) of short carbon fiber crank matrix (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220359239 CN202827970U (en) | 2012-07-23 | 2012-07-23 | Short carbon fiber bicycle crank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220359239 CN202827970U (en) | 2012-07-23 | 2012-07-23 | Short carbon fiber bicycle crank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202827970U true CN202827970U (en) | 2013-03-27 |
Family
ID=47939735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220359239 Expired - Lifetime CN202827970U (en) | 2012-07-23 | 2012-07-23 | Short carbon fiber bicycle crank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202827970U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102887199A (en) * | 2012-09-29 | 2013-01-23 | 张卫兵 | Carbon fiber bicycle crank and production process thereof |
| US11142280B2 (en) | 2016-03-24 | 2021-10-12 | The Hive Global, Inc. | Bicycle crank with spindle attachment structure |
| US11351815B2 (en) | 2017-08-21 | 2022-06-07 | The Hive Global, Inc. | Bicycle cassette with clamping connection |
| US11485449B2 (en) | 2015-09-01 | 2022-11-01 | The Hive Global, Inc. | Bicycle cassette with locking connection |
| US11932351B2 (en) | 2020-07-17 | 2024-03-19 | The Hive Global, Inc. | Conical bicycle cassette sprocket structure |
-
2012
- 2012-07-23 CN CN 201220359239 patent/CN202827970U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102887199A (en) * | 2012-09-29 | 2013-01-23 | 张卫兵 | Carbon fiber bicycle crank and production process thereof |
| CN102887199B (en) * | 2012-09-29 | 2014-02-26 | 张卫兵 | Carbon fiber bicycle crank and production process thereof |
| US11485449B2 (en) | 2015-09-01 | 2022-11-01 | The Hive Global, Inc. | Bicycle cassette with locking connection |
| US11142280B2 (en) | 2016-03-24 | 2021-10-12 | The Hive Global, Inc. | Bicycle crank with spindle attachment structure |
| US11351815B2 (en) | 2017-08-21 | 2022-06-07 | The Hive Global, Inc. | Bicycle cassette with clamping connection |
| US11932351B2 (en) | 2020-07-17 | 2024-03-19 | The Hive Global, Inc. | Conical bicycle cassette sprocket structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130327 |