CN204021182U - Chain case of bicycle group - Google Patents
Chain case of bicycle group Download PDFInfo
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- CN204021182U CN204021182U CN201420445808.6U CN201420445808U CN204021182U CN 204021182 U CN204021182 U CN 204021182U CN 201420445808 U CN201420445808 U CN 201420445808U CN 204021182 U CN204021182 U CN 204021182U
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- chain
- chain drum
- public access
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- access part
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Abstract
The utility model discloses a kind of chain case of bicycle group, include a chain drum seat, one first chain drum and one second chain drum, this chain drum seat has a dispensing hole in order to be combined with a sleeve of bicycle rear-hub, and the periphery of this chain drum seat is provided with plural connecting arm, these connecting arms are provided with that at least one first mother connects hole and one second mother connects hole, this first chain drum has one first outer portion and one first internal ring portion, this first outer portion is provided with plural the first sprocket, this first internal ring portion is provided with plural the first public access part, this the first public access part is arranged at this first mother and connects hole, this second chain drum has one second outer portion and one second internal ring portion, this second outer ring portion is furnished with plural the second sprocket, this second internal ring portion is provided with plural the second public access part, this the second public access part is arranged at this second mother and connects hole.Accordingly, can save the needed work-hours of the affixed two chain sheet of rivet, and can actv. modularization to reduce manufacturing cost.
Description
Technical field
The utility model relates to the chain drum group of bicycle, and particularly a kind of rapid-assembling plural number chain fluted disc that can modularization be conducive to is in the chain case of bicycle group of one.
Background technology
The rear chain disk group of general variable speed bicycle has the rear chain disk of the different big or small numbers of teeth of multi-disc, jointly be fitted on a sleeve, this sleeve is also socketed in the axle of a rear drum, this rear drum is connected with the trailing wheel of bicycle, and treadled cycle pedal can drive a front chain drum group rotation, between this front chain drum group and this rear chain disk group, be to borrow a chain to hang to connect, can coordinate different road conditions to borrow a change-speed box of bicycle to change chain and hang a wherein front chain drum of front chain drum group and a wherein rear chain disk of rear chain disk group, and drive bicycle to advance.
Because the progression of bicycle variable-ratio is more, in rear chain disk group, the rear chain disk quantity of institute's assembly is relatively more, is TaiWan, China new patent M451318 bicycle chain wheels as shown in Figures 1 and 2, comprises a pedestal 60, plural number connecting element 70, the hinge wheel 80 of one maximum outside diameter, one first sprocket wheel 90, one second sprocket wheel 91, one the 3rd sprocket wheel 92 and one the 4th sprocket wheel 93, pedestal 60 has a body 61 cylindraceous, the outer portion of body 61 is provided with six supporting arms 62, supporting arm 62 has a relative first surface 63 and a second surface 64, second surface 64 is provided with one first stepped rank portion 641 and a second-order portion 642, the thickness of the first rank portion 641 is greater than the thickness of second-order portion 642, and the first rank portion 641 is respectively equipped with a through hole 65 with second-order portion 642, first surface 63 use of supporting arm 62 are installed for a hinge wheel 80, and be provided with the through hole 65 of plural mounting hole 81 with corresponding the first rank portion 641, second surface 64 directions are sequentially installed the first sprocket wheel 90, the second sprocket wheel 91, the 3rd sprocket wheel 92 and the 4th sprocket wheel 93, this first sprocket wheel 90, the second sprocket wheel 91, the 3rd sprocket wheel 92 and the 4th sprocket wheel 93 are respectively equipped with plural mounting hole 901, 911, 921, 931 with corresponding connecting element 70.Connecting element 70 be two groups, there is respectively a large-diameter portion 71, a long column 72 and a short column 73, make the first sprocket wheel 90 borrow mounting hole 911 and longer connecting element 70 to rivet, longer connecting element 70 also passes this mounting hole 911 of the second sprocket wheel 91 and the through hole 65 of the first rank portion 641, the mounting hole 81 that penetrates again hinge wheel 80, is riveted on first surface 63 by hinge wheel 80.
The 3rd sprocket wheel 92 and the 4th sprocket wheel 93 borrow the short column 73 of short connecting element 70 through mounting hole 921 rivet clasp of the 3rd sprocket wheel 92, and the long column 72 of short connecting element 70 also passes the mounting hole 931 of the 4th sprocket wheel 93 and the through hole of supporting arm 62 65 riveted.So make the first sprocket wheel 90, the second sprocket wheel 91, the 3rd sprocket wheel 92, the 4th sprocket wheel 93 and this hinge wheel 80 by plural connecting element 70 wear and riveted is common and pedestal 60 is consolidated into one.
In assembling, must first make one end of long connecting element 70 through the mounting hole 901 of the first sprocket wheel 90 by manpower, and the other end also pass the mounting hole 911 of the second sprocket wheel 91 and the through hole 65 of the first rank portion 641 and is riveted on first surface 63.Short connecting element 70 its short columns 73 are through mounting hole 921 rivet clasp of the 3rd sprocket wheel 92, short connecting element 70 passes the mounting hole 931 of the 4th sprocket wheel 93 and the through hole of supporting arm 62 65 riveted with its long column 72 again, as can be seen here, fitting process is very time-consuming bothersome, the precision that each element cooperatively interacts is difficult to control, and does not meet economic needs.
Utility model content
In view of this, main purpose of the present utility model, is to provide one can reach modularization, and the accurate object of fast speed is really exempted the time-consuming bothersome trouble of riveted joint, can meet the chain case of bicycle group of economic benefit.
For achieving the above object, the utility model discloses a kind of chain case of bicycle group being arranged on bicycle rear-hub sleeve, include a chain drum seat, one first chain drum and one second chain drum, this chain drum seat has a dispensing hole in order to be combined with this sleeve, and the periphery of this chain drum seat is provided with plural connecting arm, each this connecting arm is respectively equipped with that at least one first mother connects hole and at least one the second mother connects hole, this first chain drum has one first outer portion and one first internal ring portion, this first outer portion is provided with plural the first sprocket, this first internal ring portion is provided with plural the first public access part, this the first public access part is also arranged at this first mother and connects hole, this second chain drum has one second outer portion and one second internal ring portion, this second outer ring portion is furnished with plural the second sprocket, this second internal ring portion is provided with plural the second public access part, this the second public access part is also arranged at this second mother and connects hole.
This chain case of bicycle group more includes the Connection Element of plural column, the centre of this Connection Element has a flange, the both sides of this flange have the one first post tip and the one second post tip of different directions, the external diameter of this flange is greater than this first post tip and this second post tip, this the first public access part is provided with one first consent, this the second public access part is provided with one second consent, and this first post tip is arranged in this first consent, and this second post tip is arranged in this second consent.
This first chain drum is greater than this second chain drum, and the first chain number of teeth of this first chain drum is more than the second chain number of teeth of this second chain drum.
This dispensing hole has plural projection, and this projection and this bicycle sleeve are chimeric.
This Connection Element is embedded in this chain drum seat completely.
This plural number connecting arm merry-go-round arrangement is in the outer peripheral edges of this chain drum seat, this the first public access part of this first chain drum is this first internal ring portion at this first chain drum with merry-go-round arrangement, this the second public access part of this second chain drum is this second internal ring portion at this second chain drum with merry-go-round arrangement, and this first public access part this connecting arm relative to this second public access part arranges.
This chain drum seat is made up of non-metallic material.
This Connection Element is arranged in respectively this first chain drum and this second chain drum in non-riveted mode.
This chain drum seat, this first chain drum and this second chain drum are combined inseparably in the time of serviceability.
The utility model at least has following advantage:
1. chain case of bicycle group of the present utility model is inserted the first fluted disc and the second fluted disc in mould in advance, fill with mould, be shaped this chain drum seat same season this first chain drum the first public access part and the second public access part of this second chain drum, be subject to the connecting arm of this chain drum seat be coated and solidify the rear one that forms, on manufacturing, can reach modularization, really quick, exempt the time-consuming bothersome trouble of manpower riveted joint completely, therefore can reduce costs, meet economic benefit, have industry applications.
2. the utility model part is few simple in structure, and without make this first chain drum, this second chain drum and chain drum seat connect by riveting method, therefore compared to known more light and handy and saving material and manual assembly cost, has the competitive power in market, and this chain drum seat can adopt plastic-steel, carbon fiber or thermoset resin material to be shaped, the person that really further more generally uses metallic material has more light and handy and reduces costs advantage.
Brief description of the drawings
Fig. 1 is the exploded perspective view of known TaiWan, China new patent M451318 bicycle chain wheels.
Fig. 2 is the assembled sectional view of known TaiWan, China new patent M451318 bicycle chain wheels.
Fig. 3 is the three-dimensional exploded view of the utility model embodiment.
Fig. 4 is the three-dimensional combination figure of the utility model embodiment.
Fig. 5 is the built-up section cutaway view of the utility model embodiment.
Fig. 6 is the exploded perspective view that the utility model embodiment coordinates chain drum group and bicycle drive shaft sleeve.
Fig. 7 is the combination stereogram that the utility model embodiment coordinates chain drum group and bicycle drive shaft sleeve.
Fig. 8 is the assembled sectional view that the utility model embodiment coordinates chain drum group and bicycle drive shaft sleeve.
Description of reference numerals
60: pedestal 61: body
62: supporting arm 63: first surface
64: 641: the first rank portions of second surface
642: second-order portion 65: through hole
70: connecting element 71: large-diameter portion
72: long column 73: short column
80: hinge wheel 81: mounting hole
91: the second sprocket wheels of 90: the first sprocket wheels
93: the four sprocket wheels of 92: the three sprocket wheels
901,911,921,931: mounting hole
10: chain drum seat 11: dispensing hole
111: projection 12: connecting arm
13: the first mothers meet 14: the second mothers in hole and connect hole
21: the first outer portion of 20: the first chain drums
23: the first sprockets of 22: the first internal ring portions
25: the first consents of 24: the first public access parts
31: the second outer portion of 30: the second chain drums
33: the second sprockets of 32: the second internal ring portions
35: the second consents of 34: the second public access parts
40: Connection Element 41: flange
43: the second post tips of 42: the first post tips
50: chain drum group 51: chain drum
52: tightening cover 53: outside thread
100: sleeve 101: centre hole.
Detailed description of the invention
Relevant detailed content of the present utility model and technical description, be now described further with embodiment, but will be appreciated that, these embodiment are the use for illustrating only, and should not be interpreted as the restriction that the utility model is implemented.
Refer to Fig. 3 to Fig. 6, Fig. 3 is the three-dimensional exploded view of the utility model embodiment, Fig. 4 is the three-dimensional combination figure of the utility model embodiment, Fig. 5 is the built-up section cutaway view of the utility model embodiment, and Fig. 6 is the exploded perspective view that the utility model embodiment coordinates chain drum group and bicycle drive shaft sleeve.The utility model discloses a kind of chain case of bicycle group, and it includes a chain drum seat 10, one first chain drum 20, one second chain drum 30 and plural Connection Element 40.Chain drum seat 10 is nonmetallic material, as be selected from one of them of plastic-steel, carbon fiber and thermoset resin material, the present embodiment is to select plastic-steel, and be provided with a dispensing hole 11 in chain drum Zuo10 center, dispensing hole 11 is provided with plural projection 111 around and is used for and the sleeve 100 periphery tablings of bicycle rear-hub, the plural the connecting arm 12 and outer portion of chain drum seat 10 has extended radially outwardly, this connecting arm 12 is provided with away from the one end in the center of circle that at least one first mother connects hole 13 and one second mother connects hole 14, and in the present embodiment, the first mother connects hole 13, the second mother connects hole 14 for rectangle.
The first chain drum 20, it has one first outer portion 21 and one first internal ring portion 22, the first outer portion 21 is distributed with plural the first sprocket 23, and being distributed with plural the first public access part 24, the first internal ring portion 22 connects hole 13 in order to be embedded in the first mother, plural number the first public access part 24 radially extends to the center of circle of the first chain drum 20 from the first internal ring portion 22 of the first chain drum 20, and the first public access part 24 is provided with one first consent 25.
The second chain drum 30, there is equally one second outer portion 31 and one second internal ring portion 32, the second outer portion 31 is distributed with plural the second sprocket 33, the second internal ring portion 32 is distributed with plural the second public access part 34 and connects hole 14 in order to be embedded in the second mother, plural number the second public access part 34 radially extends to the center of circle of the second chain drum 30 from the second internal ring portion 32 of the second chain drum 30, and the second public access part 34 is provided with one second consent 35, and these the first public access parts 24 these connecting arms 12 relative to these the second public access parts 34 arrange.
The external diameter of the first chain drum 20 is greater than the external diameter of the second chain drum 30, and the first sprocket 23 quantity of the first chain drum 20 are more than the second sprocket 33 quantity of the second chain drum 30.
Connection Element 40 is column, in the middle of it, there is a flange 41, the both sides of flange 41 have the one first post tip 42 and the one second post tip 43 that extend to different directions, the external diameter of flange 41 is greater than the first post tip 42 and the one second post tip 43, and the first post tip 42 is arranged at first consent 25, the second post tips 43 and is arranged at the second consent 35.
During fabrication, borrow Connection Element 40 to make the first post tip 42 be arranged at the first consent 25 of the first chain drum 20, the second post tip 43 is arranged at the second consent 35 of the second chain drum 30, makes the first chain drum 20 and the second chain drum 30 connect in advance and borrow a mould (not shown) perfusion plastic-steel (Acrylonitrile Butadene Styrene; ABS) figuration manufacture goes out chain drum seat 10, in shaping chain drum seat 10, make the first public access part 24 of the first chain drum 20 and the second public access part 34 of the second chain drum 30, be coated by plastic-steel and form a connecting arm 12 and the first public access part 24, the second public access part 34 are coated togather and it is combined closely with Connection Element 40, and these Connection Elements 40 are embedded in this chain drum seat 10 completely, when this first chain drum 20 and this second chain drum 30 connect to one by die perfusion and this chain drum seat 10, after making it in the time of serviceability for combining inseparably.
By above-mentioned structure, the chain drum seat 10 of the utility model chain case of bicycle group is by fixing die forming out, in advance each Connection Element 40 is made to the first post tip 42 of one end and the first consent 25 fits of the first chain drum 20 at fit on, the second consent 35 fits of the second post tip 43 and the second chain drum 30, insert again in mould, carry out plastic-steel and fill with mould, at the first public access part 24 of same seasonal the first chain drum 20 and the second public access part 34 of the second chain drum 30 of shaping chain drum seat 10, be subject to the connecting arm 12 of chain drum seat 10 coated, form after cured one, on manufacturing, can reach modularization, really fast, exempt the time-consuming bothersome trouble of manpower riveted joint completely, therefore can reduce costs, meet economic benefit, has industry applications.
And in the time implementing assembling, see also Fig. 6 to Fig. 8, and Fig. 7 is the combination stereogram that the utility model embodiment coordinates chain drum group and bicycle drive shaft sleeve, Fig. 8 is the assembled sectional view that the utility model embodiment coordinates chain drum group and bicycle drive shaft sleeve.The utility model a chain drum group 50 that coordinates side to be formed by complex magnitude chain drum, chain drum group 50 is according to the sheathed periphery that is fitted in sleeve 100 of the little large order of chain drum, the outside thread 53 that relends a tightening cover 52 in chain drum 51 outsides of minimum screws togather with a centre hole 101 of sleeve 100, is jointly connected on sleeve 100.
It is worth mentioning that, the utility model part is few simple in structure, and without make the first chain drum 20, the second chain drum 30 connect with chain drum seat 10 by riveting method, therefore and material saving and assembly cost more light and handy compared to the known wheels of bicycle chain as shown in Figure 1 and Figure 2, has the competitive power in market, and the utility model chain drum seat 10 can adopt plastic-steel, carbon fiber or thermoset resin material to be shaped according to different environment and cost demand, the person that really further more generally uses metallic material has more light and handy and reduces costs advantage.
The utility model discloses with preferred embodiment hereinbefore, it should be understood that this embodiment is only for describing the utility model but be familiar with the technology person, and should not be read as restriction scope of the present utility model.It should be noted, be such as and variation and the displacement of this embodiment equivalence, all should be made as and be covered by category of the present utility model.Therefore, protection domain of the present utility model when with claims the person of being defined be as the criterion.
Claims (9)
1. a chain case of bicycle group, it is combined with a sleeve of bicycle rear-hub, it is characterized in that, and this chain case of bicycle group comprises:
One chain drum seat, it has a dispensing hole in order to be combined with this sleeve, and the periphery of this chain drum seat is provided with plural connecting arm, and each connecting arm is provided with that at least one first mother connects hole and at least one the second mother connects hole;
One first chain drum, it has one first outer portion and one first internal ring portion, and this first outer portion is provided with plural the first sprocket, and this first internal ring portion is provided with plural the first public access part, and this first public access part is arranged at this first mother and connects hole; And
One second chain drum, has one second outer portion and one second internal ring portion, and this second outer ring portion is furnished with plural the second sprocket, and this second internal ring portion is provided with plural the second public access part, and this second public access part is arranged at this second mother and connects hole.
2. chain case of bicycle group as claimed in claim 1, it is characterized in that, more include the Connection Element of plural column, the centre of this Connection Element has a flange, and the both sides of this flange have the one first post tip and the one second post tip of different directions, and the external diameter of this flange is greater than this first post tip and this second post tip, this the first public access part is provided with one first consent, this the second public access part is provided with one second consent, and this first post tip is arranged in this first consent, and this second post tip is arranged in this second consent.
3. chain case of bicycle group as claimed in claim 1, is characterized in that, this first chain drum is greater than this second chain drum, and the first chain number of teeth of this first chain drum is more than the second chain number of teeth of this second chain drum.
4. chain case of bicycle group as claimed in claim 1, is characterized in that, this dispensing hole has plural projection, and this projection and this bicycle sleeve are chimeric.
5. chain case of bicycle group as claimed in claim 2, is characterized in that, this Connection Element is embedded in this chain drum seat completely.
6. chain case of bicycle group as claimed in claim 1, it is characterized in that, this plural number connecting arm merry-go-round arrangement is in the outer peripheral edges of this chain drum seat, this the first public access part of this first chain drum is this first internal ring portion at this first chain drum with merry-go-round arrangement, this the second public access part of this second chain drum is this second internal ring portion at this second chain drum with merry-go-round arrangement, and this first public access part this connecting arm relative to this second public access part arranges.
7. chain case of bicycle group as claimed in claim 1, is characterized in that, this chain drum seat is made up of non-metallic material.
8. chain case of bicycle group as claimed in claim 2, is characterized in that, this Connection Element is arranged in respectively this first chain drum and this second chain drum in non-riveted mode.
9. chain case of bicycle group as claimed in claim 1, is characterized in that, this chain drum seat, this first chain drum and this second chain drum are combined inseparably in the time of serviceability.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420445808.6U CN204021182U (en) | 2014-08-08 | 2014-08-08 | Chain case of bicycle group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420445808.6U CN204021182U (en) | 2014-08-08 | 2014-08-08 | Chain case of bicycle group |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204021182U true CN204021182U (en) | 2014-12-17 |
Family
ID=52061080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420445808.6U Active CN204021182U (en) | 2014-08-08 | 2014-08-08 | Chain case of bicycle group |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204021182U (en) |
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2014
- 2014-08-08 CN CN201420445808.6U patent/CN204021182U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |