CN204355249U - A kind of contest mountain bike lightweight chain wheel - Google Patents
A kind of contest mountain bike lightweight chain wheel Download PDFInfo
- Publication number
- CN204355249U CN204355249U CN201420797267.3U CN201420797267U CN204355249U CN 204355249 U CN204355249 U CN 204355249U CN 201420797267 U CN201420797267 U CN 201420797267U CN 204355249 U CN204355249 U CN 204355249U
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- plastic cement
- cement block
- breach
- contest
- chain wheel
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Abstract
The utility model discloses a kind of contest mountain bike lightweight chain wheel, the metal tine comprising crank and be riveted together with described crank, it is characterized in that, the inner peripheral circumference of described metal tine is uniform offers some breach, breach described in each is formed with the plastic cement block for filling breach by mould, the waist shaped hole that the plastic rubber material metal tine of described breach outer rim offering the described plastic cement block of some confessions injects, the plastic rubber material of described plastic cement block injects the joint pin that the shaping rear formation two ends of described waist shaped hole connect the plastic cement block be positioned on described metal tine two surface respectively.The utility model utilizes plastic cement block and metal tine good combination, not only reduces the weight of whole chain wheel, thus decreases the complete vehicle weight of contest mountain bike, improves car load speed, is beneficial to bicyclist's contest; In addition, the utility model adopts NMT to realize, lower than the CNC tooling cost of traditional chain wheel, shortens the process-cycle.
Description
Technical field
The utility model relates to chain wheel field, particularly a kind of contest mountain bike lightweight chain wheel.
Background technology
Shown in Figure 1, the metal tine entirety of current contest mountain bike chain wheel is metal construction, its weight lays particular stress on, affect contest mountain bike speed and performance, and it utilizes CNC (Computer NumericalControl, numerically-controlled machine tool) processing, not only tooling cost is high, and the process-cycle is long.
Utility model content
The purpose of this utility model is deficiency for existing contest mountain bike chain wheel and defect, and provide a kind of contest mountain bike lightweight chain wheel, this contest mountain bike lightweight chain wheel is not only lightweight, and easy to process.
The technical matters that the utility model solves can realize by the following technical solutions:
A kind of contest mountain bike lightweight chain wheel, the metal tine comprising crank and be riveted together with described crank, it is characterized in that, the inner peripheral circumference of described metal tine is uniform offers some breach, breach described in each is formed with the plastic cement block for filling breach by mould, the waist shaped hole that the plastic rubber material metal tine of described breach outer rim offering the described plastic cement block of some confessions injects, the plastic rubber material of described plastic cement block injects the joint pin that the shaping rear formation two ends of described waist shaped hole connect the plastic cement block be positioned on described metal tine two surface respectively.
In a preferred embodiment of the present utility model, described breach is arc notch, and described plastic cement block is the arc like plastic block adapted with described arc notch shape, and the metal tine between adjacent two arc notch offers riveted holes.
In a preferred embodiment of the present utility model, described breach is four, and described plastic cement block is four pieces.
Owing to have employed technical scheme as above, the utility model utilizes plastic cement block and metal tine good combination, not only reduces the weight of whole chain wheel, thus decreases the complete vehicle weight of contest mountain bike, improves car load speed, is beneficial to bicyclist's contest; In addition, the utility model adopts NMT (Nano MoldingTechnology, metal and the shaping combination technology of plastic cement nanometer) to realize, lower than the CNC tooling cost of traditional chain wheel, shortens the process-cycle.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the metal tine of prior art.
Fig. 2 is the structural representation of the gear piece of a kind of embodiment of the utility model.
Fig. 3 is the lateral plan of Fig. 2.
Fig. 4 is the structural representation of four pieces of plastic cement blocks of a kind of embodiment of the utility model.
Fig. 5 is the lateral plan of Fig. 4.
Fig. 6 is the A-A cutaway view of Fig. 5.
Fig. 7 is the inverse layer structure schematic diagram after the gear piece of a kind of embodiment of the utility model and four pieces of plastic cement agllutinations close.
Fig. 8 is the Facad structure schematic diagram after the gear piece of a kind of embodiment of the utility model and four pieces of plastic cement agllutinations close.
Fig. 9 is the longitudinal sectional view of Fig. 7.
Figure 10 is the I place enlarged diagram of Fig. 9.
Detailed description of the invention
The technological means realized to make the utility model, creation characteristic, reaching object and effect is easy to understand, setting forth the utility model further below.
See shown in Fig. 2 to Fig. 9, a kind of contest mountain bike lightweight chain wheel comprises crank (not shown) and metal tine 100.Inner peripheral 101 circumference of metal tine 100 is uniform offers some breach, and the breach in the present embodiment is four arc notch 110, and the metal tine between adjacent two arc notch 110 offers riveted holes 111, facilitates crank and metal tine 100 to rivet.
Each arc notch 110 is formed with the plastic cement block 200 for filling breach by mould, and plastic cement block 200 is the arc like plastic block adapted with arc notch 110 shape.Plastic cement block 200 adopts NMT technology to realize with the combination of metal tine 100, can effectively combine, and lower than the CNC tooling cost of traditional chain wheel, shortens the process-cycle.
In order to make plastic cement block 200 and metal tine 100 mortise further, arc notch 110 offers the waist shaped hole 112 that some plastic rubber materials for plastic cement block 200 inject in the metal tine of the outer rim of the outer flank of tooth 120.Shown in Figure 10, the plastic rubber material injection shaping rear formation two ends of waist shaped hole 112 of plastic cement block 200 connect the joint pin 210 of the plastic cement block be positioned on metal tine two surface respectively.
The utility model utilizes plastic cement block 200 and metal tine 100 good combination, not only reduces the weight of whole chain wheel, thus decreases the complete vehicle weight of contest mountain bike, improves car load speed, is beneficial to bicyclist's contest.
More than show and describe groundwork of the present utility model and principal character and advantage of the present utility model.The technical personnel of the industry should be understood; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and specification sheets just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (3)
1. a contest mountain bike lightweight chain wheel, the metal tine comprising crank and be riveted together with described crank, it is characterized in that, the inner peripheral circumference of described metal tine is uniform offers some breach, breach described in each is formed with the plastic cement block for filling breach by mould, the waist shaped hole that the plastic rubber material metal tine of described breach outer rim offering the described plastic cement block of some confessions injects, the plastic rubber material of described plastic cement block injects the joint pin that the shaping rear formation two ends of described waist shaped hole connect the plastic cement block be positioned on described metal tine two surface respectively.
2. a kind of contest mountain bike lightweight chain wheel as claimed in claim 1, it is characterized in that, described breach is arc notch, and described plastic cement block is the arc like plastic block adapted with described arc notch shape, and the metal tine between adjacent two arc notch offers riveted holes.
3. a kind of contest mountain bike lightweight chain wheel as claimed in claim 1 or 2, it is characterized in that, described breach is four, and described plastic cement block is four pieces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420797267.3U CN204355249U (en) | 2014-12-15 | 2014-12-15 | A kind of contest mountain bike lightweight chain wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420797267.3U CN204355249U (en) | 2014-12-15 | 2014-12-15 | A kind of contest mountain bike lightweight chain wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204355249U true CN204355249U (en) | 2015-05-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420797267.3U Active CN204355249U (en) | 2014-12-15 | 2014-12-15 | A kind of contest mountain bike lightweight chain wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204355249U (en) |
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2014
- 2014-12-15 CN CN201420797267.3U patent/CN204355249U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |