CN109436179A - Bicycle dials chain structure and bicycle - Google Patents
Bicycle dials chain structure and bicycle Download PDFInfo
- Publication number
- CN109436179A CN109436179A CN201811486146.6A CN201811486146A CN109436179A CN 109436179 A CN109436179 A CN 109436179A CN 201811486146 A CN201811486146 A CN 201811486146A CN 109436179 A CN109436179 A CN 109436179A
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- China
- Prior art keywords
- chain
- sprocket wheel
- group
- bicycle
- axis
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M9/00—Transmissions characterised by use of an endless chain, belt, or the like
- B62M9/04—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio
- B62M9/06—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like
- B62M9/10—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like involving different-sized wheels, e.g. rear sprocket chain wheels selectively engaged by the chain, belt, or the like
- B62M9/12—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like involving different-sized wheels, e.g. rear sprocket chain wheels selectively engaged by the chain, belt, or the like the chain, belt, or the like being laterally shiftable, e.g. using a rear derailleur
- B62M9/121—Rear derailleurs
- B62M9/126—Chain guides; Mounting thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M9/00—Transmissions characterised by use of an endless chain, belt, or the like
- B62M9/16—Tensioning or adjusting equipment for chains, belts or the like
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Transmissions By Endless Flexible Members (AREA)
Abstract
The present invention provides a kind of bicycle group chain structure and bicycle, it includes vehicle frame that bicycle, which dials chain structure, loaded on the first sprocket wheel in the middle part of vehicle frame, flywheel group at the first rear fork of vehicle frame, the chain being connected between the first sprocket wheel and flywheel group and the derailleur being mounted on vehicle frame and chain device, derailleur includes being connected to the fixing seat of the first rear fork, dialling chain element and being connected to loaded on fixing seat dials chain element, the first elastic component between fixing seat, dialling chain element includes dialling sprocket wheel, dialling chain element relative to the movement of fixed seat and can stir chain between the second sprocket wheel of multiple flywheel groups and move, opening chain device includes the swing arm hinged with vehicle frame, it is mounted on the sprocket wheel of swing arm first end and is connected to swing arm, second elastic component between vehicle frame, second elastic component drive sprocket is pressed together on chain.And the bicycle of chain structure is dialled containing the bicycle.The bicycle, which dials chain structure and bicycle, to be had the advantages that simple and reliable for structure and can protect to derailleur.
Description
Technical field
The present invention relates to technical field of bicycles, specifically, being to be related to a kind of bicycle to dial chain structure and include this
Bicycle dials the bicycle of chain structure.
Background technique
The rear chiain-moving device of bicycle is fitted on the rear chain stay of cycle frame, and with the combination speed change on bicycle rear
Gear matches.Existing rear chiain-moving device mainly includes dialling chain element and being set to dial a chain element on chain element, works as bicycle
When needing speed change, shift cable is wound or is discharged by the selector on bicycle, dialled so that shift cable correspondingly drives
Chain element is moved and stirs chain and engaged with the gear for combining different-diameter size on transmission gear, to realize to voluntarily
The shift speed change of vehicle.But the structure of existing rear chiain-moving device is more complicated, and dials chain element and chain in integral type setting
Unit will increase the load of selector and shift cable in speed-change process.
In addition, existing rear chiain-moving device is the outside of the rear chain stay positioned at cycle frame, so that rear chiain-moving device is easily
It is collided with or is hit, especially when occurring falling vehicle, the rear chiain-moving device of bicycle can directly be hit with ground or rubble, be led
Rear chiain-moving device is caused easily to damage.Furthermore the guide chain plate of existing derailleur is directed towards the voluntarily tailstock in use
Portion's setting causes guide chain plate long-term exposed outside vehicle frame, holds so that guide chain plate can not be effectively protected in cycle frame
Vulnerable to foreign object strike, its impaired risk is further increased.
Summary of the invention
To solve the above-mentioned problems, the main object of the present invention be to provide a kind of simple and reliable for structure, production cost it is low and
Chain structure can be dialled to the bicycle that derailleur is protected.
It is a further object of the present invention to provide it is a kind of it is simple and reliable for structure, production cost is low and can protect to derailleur
The bicycle of shield.
In order to realize that the main object of the present invention, the present invention provide a kind of bicycle group chain structure, including vehicle frame, wheel hub
Axis, the first sprocket wheel, hub shell, flywheel group, chain, vehicle frame include being oppositely arranged the first rear fork and the second rear fork, and hub spindle rides on
Between the first rear fork and the second rear fork, the first sprocket wheel is installed in rotation in the middle part of vehicle frame around the axis of itself, hub shell around
The axis of itself is rotatably mounted around on hub spindle, and flywheel group is between the first rear fork and the second rear fork, flywheel group suit
In the end of hub shell, flywheel group includes the second sprocket wheel of multiple and different diameters, and chain is connected to the first sprocket wheel and one second
Between sprocket wheel, wherein it further includes derailleur and a chain device that bicycle, which dials chain structure, derailleur include fixing seat, dial chain element and
First elastic component, fixing seat are fixedly connected with the first rear fork, are dialled chain element and are mounted in fixing seat, and group chain element includes can be around certainly
Sprocket wheel is dialled in body axis rotation, and the axis for dialling sprocket wheel is parallel to the axis of hub spindle, and chain is wound around second sprocket wheel and dials
Between sprocket wheel, dialling chain element relative to the movement of fixed seat and can stir chain between multiple second sprocket wheels and move, the first elastic component
It is connected to and dials between chain element and fixing seat, a chain device includes swing arm, sprocket wheel and the second elastic component, axis of the sprocket wheel around itself
Line is installed in rotation on the first end of swing arm, and the second end and vehicle frame of swing arm are hinged, and the second elastic component is connected to swing arm and vehicle
Between frame, and a sprocket wheel is driven to be pressed together on chain.
Therefore the design by dialling chain structure to bicycle, so that derailleur is arranged with chain device in separate structure,
To simplify the structure of derailleur, while chain device can be carried out as an individual unit using so that opening chain device
Position can adjust installation site according to the specific structure of vehicle frame, guarantee that chain can have enough tensile forces.In addition, logical
Cross to the structure setting of derailleur and dial position setting in chain element so that dial chain element be located at the first rear fork of vehicle frame with
Between second rear fork, avoids group chain element from being collided with or hit outside vehicle frame due to exposed, play a protective role to derailleur.
Since the structure of chain device is separated from derailleur, the swing arm of chain part is too long, is in total, the most fragile,
And the structure of bad protection, a chain device is set at the first sprocket wheel, due to the first sprocket wheel and foot-operated presence, can more preferably be protected
Shield chain device.Bicycle provided by the invention group chain structure is low with simple and reliable for structure, production cost and can be to derailleur
The advantages of being protected.
One Preferable scheme is that, fixing seat along hub spindle be axially facing flywheel group extend be provided with guide post, dial chain
Unit further includes sliding seat, and sliding seat is slidably connected with guide post, dials sprocket wheel around the axis of itself and is installed in rotation on cunning
On dynamic seat, sliding seat can be slided along guide post with respect to flywheel group, and the first elastic component is connected between fixing seat and sliding seat.
Therefore sliding seat be able to drive be installed on dial chain element moved, and then realize chain is dialed to it is winged
At the second different sprocket wheels of wheel group, so that chain is engaged from the second different sprocket wheels, variable speed operation, the first elasticity are realized
Part is for resetting sliding seat.
Further embodiment is that sliding seat includes the connecting bracket of ontology and installation on the body, and ontology can be slided with guide post
It connects dynamicly, dials sprocket wheel and be installed in rotation in connecting bracket around the axis of itself, dial and surrounded between sprocket wheel and connecting bracket
Limit channels, chain at least part are located in limit channels.
Therefore dial and surround limit channels between sprocket wheel and connecting bracket and can play position-limiting action to chain, it prevents
Chain element is dialled in stirring chain moving process, chain is detached from and dials engaging for sprocket wheel, guarantees the reliability of shift.
Further scheme is that dial chain element include hinged seat and wobble component, wobble component be hinged on fixing seat and
Between hinged seat, dials sprocket wheel and be installed in rotation on hinged seat around the axis of itself, hinged seat can be opposite by wobble component
Flywheel group is swung, and the first elastic component is connected between fixing seat and hinged seat.
Therefore the structure for dialling chain element can be carried out according to different bicycle structures, different winged wheel group structures
Corresponding variation, to guarantee the reliability connecting between chain and derailleur, the first sprocket wheel, flywheel group in shift process.
Another Preferable scheme is that, vehicle frame further includes fixed frame, and the second end of fixed frame and swing arm is hinged, and fixed frame
Accommodating chamber is surrounded between the second end of swing arm, the second elastic component is mounted in accommodating chamber.
Further embodiment is, a chain device further includes chain cable fairlead, chain cable fairlead around itself axis and fixed frame rotationally
Connection, and chain cable fairlead is engaged with chain.
Therefore fixed frame can provide installation site for a chain device, guarantee a reliability for chain device installation.
Further scheme is to dial chain element and open a chain device to be located at the axle center of flywheel group and the axle center of the first sprocket wheel
Line two sides.
Therefore by dial chain element and open chain device be located at the axle center of flywheel group and the axle center of the first sprocket wheel line two
Side enables to a chain device to have better swing space, guarantees that chain has enough tensile forces.
In order to realize that another object of the present invention, the present invention provide a kind of bicycle, including bicycle group chain structure, shift
Device and shift cable, it includes vehicle frame, hub spindle, the first sprocket wheel, hub shell, flywheel group and chain, vehicle frame packet that bicycle, which dials chain structure,
It includes and is oppositely arranged the first rear fork and the second rear fork, selector is mounted on the handle of vehicle frame, the first end and selector of shift cable
Winder unit be fixedly connected, hub spindle rides between the first rear fork and the second rear fork, and the first sprocket wheel can around the axis of itself
It is rotatably mounted in the middle part of vehicle frame, hub shell is rotatably mounted around on hub spindle around the axis of itself, and flywheel group is located at first
Between rear fork and the second rear fork, flywheel group is sleeved on the end of hub shell, and flywheel group includes the second sprocket wheel of multiple and different diameters
Chain is connected between the first sprocket wheel and second sprocket wheel, wherein and it further includes derailleur and a chain device that bicycle, which dials chain structure,
Derailleur includes fixing seat, dials chain element and the first elastic component, and fixing seat is connect with the first rear fork, dials chain element and is mounted on fixation
Seat, dialling chain element includes that can dial sprocket wheel around own axis, and the axis for dialling sprocket wheel be parallel to the axis of hub spindle, chain around
It is located at second sprocket wheel and dials between sprocket wheel, the second end of shift cable is connect with chain element is dialled, and dialling chain element can be relatively fixed
Seat moves and stirs chain and moves between multiple second sprocket wheels, and the first elastic component, which is connected to, to be dialled between chain element and fixing seat,
Opening chain device includes swing arm, sprocket wheel and the second elastic component, and sprocket wheel is installed in rotation on the first of swing arm around the axis of itself
End, the second end and vehicle frame of swing arm are hinged, and the second elastic component is connected between swing arm and vehicle frame, and a sprocket wheel is driven to be pressed together on chain
On item.
Further embodiment is that fixing seat is provided with guide post with extending along the flywheel group that is axially facing of hub spindle, dials chain list
Member further includes sliding seat, and sliding seat is slidably connected with guide post, dials sprocket wheel around the axis of itself and is installed in rotation on sliding
On seat, sliding seat can be slided along guide post with respect to flywheel group, and the first elastic component is connected between fixing seat and sliding seat.
Further scheme is that dial chain element include hinged seat and wobble component, wobble component be hinged on fixing seat and
Between hinged seat, dials sprocket wheel and be installed in rotation on hinged seat around the axis of itself, hinged seat can be opposite by wobble component
Flywheel group is swung, and the first elastic component is connected between fixing seat and hinged seat.
Therefore the design by dialling chain structure to bicycle, so that derailleur is arranged with chain device in separate structure,
To simplify the structure of derailleur, while chain device can be carried out as an individual unit using so that opening chain device
Position can adjust installation site according to the specific structure of vehicle frame, guarantee that chain can have enough tensile forces.In addition, logical
Cross to the structure setting of derailleur and dial position setting in chain element so that dial chain element be located at the first rear fork of vehicle frame with
Between second rear fork, avoids group chain element from being collided with or hit outside vehicle frame due to exposed, play a protective role to derailleur.
Bicycle provided by the invention has the advantages that simple and reliable for structure, production cost is low and can protect to derailleur.
Detailed description of the invention
Fig. 1 is the structure chart of bicycle first embodiment of the present invention.
Fig. 2 is the structure chart of the derailleur of bicycle first embodiment of the present invention.
Fig. 3 is the structure chart under another visual angle of the derailleur of bicycle first embodiment of the present invention.
Fig. 4 is the exploded view of the derailleur of bicycle first embodiment of the present invention.
Fig. 5 is the structure chart of the chain device of bicycle first embodiment of the present invention.
Fig. 6 is the exploded view of the chain device of bicycle first embodiment of the present invention.
Fig. 7 is the structure chart after the clipped component of bicycle first embodiment of the present invention.
Fig. 8 is the local structural graph after the clipped component under the first state of bicycle second embodiment of the present invention.
Fig. 9 is the structure chart after the clipped component under the second state of bicycle second embodiment of the present invention.
Figure 10 is the structure chart of the derailleur of bicycle second embodiment of the present invention.
The invention will be further described with reference to the accompanying drawings and embodiments.
Specific embodiment
Bicycle first embodiment:
Referring to Fig.1, bicycle 100 includes that a bicycle dials chain structure, selector 1 and shift cable 2, and bicycle dials link
Structure includes vehicle frame 3, hub spindle 4, hub shell 41, the first sprocket wheel 5, flywheel group 6, chain 7, derailleur 8 and chain device 9.
Wherein, vehicle frame 3 includes that the first rear fork 31 being oppositely arranged and the second rear fork 32, hub spindle 4 ride in the first rear fork
31 and second between rear fork 32, and hub shell 41 is rotatably mounted around on hub spindle 41 around the axis of itself, in addition, hub shell 41
Wheel is formed by spoke, wheel rim and tire.
For first sprocket wheel 5 on the axis that the axis of itself is installed in rotation on 3 middle part of vehicle frame, flywheel group 6 is located at first
Between rear fork 31 and the second rear fork 32, and flywheel group 6 is sleeved on the free wheel base of 41 end of hub shell, and unidirectional by free wheel base
Hub shell 41 is driven to rotate, wherein flywheel group 6 is located at hub shell 41 on one end of the first rear fork 31 of vehicle frame 3, flywheel group
6 include the second different sprocket wheel 61 of multiple diameters.Chain 7 is connected to second sprocket wheel 61 of the first sprocket wheel 5 and flywheel group 6
On, and connect with derailleur 8.Selector 1 is mounted on the handle of vehicle frame 3, the first end of shift cable 2 and the volume in selector 1
It is fixedly connected around unit, the second end of shift cable 2 is connect with derailleur, enables the winder unit of selector 1 to shift cable 2
It is wound or discharges, so that controlling derailleur 8 stirs chain 7, make chain 7 the second of multiple and different diameters of flywheel group 6
It is moved between sprocket wheel 61.Wherein, the quantity of the second sprocket wheel 61 is two to four, and the quantity of the second sprocket wheel 61 is preferably three.
In addition, enabling 6 position of flywheel group by being arranged flywheel group 6 between the first rear fork 31 and the second rear fork 32
In in vehicle frame 3, i.e., between the first rear fork 31 and the second rear fork 32, so that vehicle frame 3 protects flywheel group 6, and then keep away
Exempt from flywheel group 6 to be located at outside vehicle frame 3, so that flywheel group 6 is not easy to be collided with.
Referring to Figure 2 to Figure 4, derailleur 8 include fixing seat 81, dial chain element 82 and the first elastic component 83, fixing seat 81 with
First rear fork 31 of vehicle frame 3 connects, wherein and it can be and be flexibly connected between fixing seat 81 and the first rear fork 31 of vehicle frame 3, it can also
To be to be fixedly connected.Preferably, holding tank 813 is provided in fixing seat 81, the first rear fork 31 is located in accommodating chamber 813.
It dials chain element 82 to be mounted in fixing seat 81, specifically, fixing seat 81 is axially facing flywheel group 6 along hub spindle 4
It is provided with guide post 811 with extending, dialling chain element 82 includes dialling sprocket wheel 821 and sliding seat, and sliding seat includes ontology 822, connection branch
Frame 823 and bolt 824.Connecting bracket 823 is mounted on ontology 822, and ontology 822 is slidably connected with guide post 811, dials sprocket wheel
821 are installed in rotation in connecting bracket 823 around itself axis, dial and surround limit between sprocket wheel 821 and connecting bracket 823
Channel 8231, the axis for dialling sprocket wheel 821 are parallel to the axis of hub spindle 4, and chain 7 is wound around second sprocket wheel of flywheel group 6
Between 61 and group sprocket wheel 821, and 7 at least part of chain is located in limit channels 8231.Limit channels 8231 can be to chain 7
Position-limiting action is played, prevents from dialling chain element 82 in stirring 7 moving process of chain, chain 7 is detached from and dials engaging for sprocket wheel 821,
Guarantee the reliability of shift.First elastic component 83 is connected between fixing seat 81 and ontology 822, and the first elastic component 83 is preferably pressed
Contracting spring, the first elastic component 83 are used to reset the movement for dialling chain element 82.
In addition, being provided with the first wire casing 8221 and threaded hole on ontology 822, the extending direction of the first wire casing 8221 is parallel to
The axial direction of guide post 811, threadingly hole extends radially through threaded hole to the first wire casing 8221, and bolt 824 is bolted in threaded hole.First
Wire casing 8221 is used to accommodate the second end of shift cable 2, and shift cable 2 is fixed in the first wire casing 8221 by bolt 824, real
Now to shift cable 2 and the connection for dialling chain element 82.
Pulley 812 is additionally provided in fixing seat 81, pulley 812 is installed in rotation on fixing seat 81 around the axis of itself
On, the axis of pulley 812 is provided with the second wire casing 8121, the second line on the peripheral wall of pulley 812 perpendicular to the axis of guide post 811
The setting of 8121 the first wire casing of face 8221 of slot.Pulley 812 can change the bending position of shift cable 2, while can reduce speed change
Frictional force during line 2 is pulled between shift cable 2 and derailleur 8 guarantees to dial the fluency that chain element 82 slides when shift.
Referring to figure 5 and figure 6, opening chain device 9 includes swing arm 91, sprocket wheel 92 and the second elastic component 93, and sprocket wheel 92 is around itself
Axis be installed in rotation on the first end of swing arm 91, the second end and vehicle frame 3 of swing arm 91 are hinged, the connection of the second elastic component 93
Between swing arm 91 and vehicle frame 3, and a sprocket wheel 92 is driven to be pressed together on chain 7.Preferably, vehicle frame 3 further includes fixed frame 33, Gu
Determine frame 33 and the second end of swing arm 91 is hinged, and surrounds accommodating chamber 911 between fixed frame 33 and the second end of swing arm 91, the second bullet
Property part 93 be mounted in accommodating chamber 911, the second elastic component 93 be preferably torsional spring.In order to be limited to the swing of swing arm 91, Gu
Determine to be provided with the first limiting section 331 on frame 33, be provided in the second end of swing arm 91 and the second limit of the first limiting section 331 cooperation
Portion 332.
As preferable scheme, the center of vehicle frame 3 is arranged in fixed frame 33, and dials chain element 82 and open chain device 9
In the two sides of the line in the axle center in the axle center and the first sprocket wheel 5 of flywheel group 6.
As shown in Figure 1 and Figure 7, when needing to carry out speed change to bicycle 100, by manipulating selector 1, so that selector
1 pair of shift cable 2 is wound or discharges, and dials chain element 82 so that shift cable 2 pulls backwards to the sliding of flywheel group 6 or makes to dial chain list
Member 82 is slided under the elastic potential energy effect of the first elastic component 83 towards flywheel group 6, so that dialling chain element 82 stirs chain 7
The second sprocket wheel 61 relative to multiple and different diameters of flywheel group 6 is mobile, and it is another to realize that chain 7 is switched to from second sprocket wheel 61
A second sprocket wheel 61.And chain device 9 can under the elastic potential energy effect of the second elastic component 93, swing arm 91 with chain 7 from it is different
The second sprocket wheel 61 engagement and relatively fixed frame 33 is swung, so that a sprocket wheel 92 be driven to be pressed together on chain 7, make chain
7 moment kept enough tensile forces.For example, when chain 7 is switched to the second small sprocket wheel of diameter from the second big sprocket wheel 61 of diameter
When 61, there is the trend of relaxation in chain 7, at this point, the relatively fixed frame 33 of the second elastic component 93 driving swing arm 91 is swung, makes a sprocket wheel
92 are pressed together on chain 7, prevent chain 7 from relaxing.And when from the second small sprocket wheel 61 of diameter to be switched to diameter big for chain 7
When the second sprocket wheel 61, there is the trend tightened in chain 7, at this point, chain 7 will push a sprocket wheel 92, so that sprocket wheel 92 is with swing arm
91 relatively fixed framves 33 are swung, and are carried out accumulation of energy to the second elastic component 93, are prevented chain 7 from influencing chain due to occurring excessively tight
Transmission between 7 and first sprocket wheel 5, flywheel group 6.
It should be noted that the fixing seat 81 of derailleur 8 and the movable connection dialled between chain element 82 are not limited to
Above-described embodiment is slidably connected, and can also realize movable company by hinged mode between fixing seat 81 and group chain element 82
It connects.
Bicycle second embodiment:
Referring to Fig. 8 to Figure 10, using the inventive concept of bicycle first embodiment, bicycle second embodiment is real with first
Apply example the difference is that: dial chain element and include hinged seat 84, wobble component 85 and dial sprocket wheel 86, wobble component 85 is hinged on
Between fixing seat 80 and hinged seat 84, dials sprocket wheel 86 and be installed in rotation on hinged seat 84 around the axis of itself, hinged seat 84
It can be swung by wobble component 85 with respect to flywheel group 60, the first elastic component 830 is connected between fixing seat 80 and hinged seat 84.
Preferably, wobble component 85 includes connecting rod 851 and connecting rod 852, and the first end and fixed frame 80 of connecting rod 851 are hinged,
The second end of connecting rod 851 and hinged seat 84 are hinged, and the first end and fixing seat 80 of connecting rod 852 are hinged, the second end of connecting rod 852 with
Hinged seat 84 is hinged, so that forming a four-bar linkage between hinged seat 84, fixing seat 80 and wobble component 85, makes
Hinged seat 84 and dialling sprocket wheel 86 and can carry out the swing of certain angle between each second sprocket wheel of flywheel group 60 thereon.It can
See, hinged seat 84 can be moved by wobble component 85, so that hinged seat 84 can be according to chain and flywheel group 60
On the position of engagement of the second sprocket wheel of difference adjust the relative position of itself and flywheel group 60, and then chain is avoided to be distorted,
Prevent chain from falling off in operation.And a chain device further includes chain cable fairlead 94, axis and fixed frame of the chain cable fairlead 94 around itself
330 are rotatably coupled, and chain is wound around between a sprocket wheel and chain cable fairlead 94, and chain cable fairlead 94 is engaged with chain.
When need to bicycle carry out speed change when, by manipulate selector so that selector shift cable is wound or
Release flies so that shift cable, which pulls, dials chain element with respect to the swing of flywheel group 60 so that dialling chain element and stirring chain relatively
The second different sprocket wheel of multiple diameters of wheel group 60 is mobile, realizes that chain is switched to another sprocket wheel from a sprocket wheel.Open chain device
Can be under the elastic potential energy effect of the second elastic component, swing arm fixes frame with chain and the engagement of the second different sprocket wheels relatively
330 are swung, so that a sprocket wheel be driven to be pressed together on chain, the chain moment are made to keep enough tensile forces.
To sum up, by dialling the design of chain structure to bicycle, so that derailleur is arranged with chain device in separate structure,
To simplify the structure of derailleur, while chain device can be carried out as an individual unit using so that opening chain device
Position can adjust installation site according to the specific structure of vehicle frame, guarantee that chain can have enough tensile forces.In addition, logical
Cross to the structure setting of derailleur and dial position setting in chain element so that dial chain element be located at the first rear fork of vehicle frame with
Between second rear fork, avoids group chain element from being collided with or hit outside vehicle frame due to exposed, play a protective role to derailleur.
Bicycle provided by the invention, which dials chain structure and bicycle, can have simple and reliable for structure, production cost low and energy
Enough the advantages of derailleur is protected.
Finally it is emphasized that the above description is only a preferred embodiment of the present invention, it is not intended to restrict the invention, it is right
For those skilled in the art, the present invention can have various change and change, all within the spirits and principles of the present invention,
Any modification, equivalent substitution, improvement and etc. done, should all be included in the protection scope of the present invention.
Claims (10)
1. bicycle dials chain structure, comprising:
Vehicle frame, the vehicle frame include being oppositely arranged the first rear fork and the second rear fork；
Hub spindle, the hub spindle ride between first rear fork and second rear fork；
First sprocket wheel, first sprocket wheel are installed in rotation in the middle part of the vehicle frame around the axis of itself；
Hub shell, the hub shell are rotatably mounted around on the hub spindle around the axis of itself；
Flywheel group, between first rear fork and second rear fork, the flywheel group is sleeved on described the flywheel group
The end of hub shell, the flywheel group include the second sprocket wheel of multiple and different diameters；
Chain, the chain are connected between first sprocket wheel and second sprocket wheel；
It is characterized in that, the bicycle dials chain structure further include:
Derailleur, the derailleur include fixing seat, dial chain element and the first elastic component, the fixing seat and first rear fork
Connection, on the fixing seat, described group of chain element includes that can dial sprocket wheel around own axis for described group of chain element installation,
The axis of described group of sprocket wheel is parallel to the axis of the hub spindle, and the chain is wound around second sprocket wheel and described group
Between sprocket wheel, described group of chain element can be mobile relative to the fixing seat and stirs the chain between multiple second sprocket wheels
Mobile, first elastic component is connected to described dial between chain element and the fixing seat；
Chain device is opened, described chain device includes swing arm, sprocket wheel and the second elastic component, and described sprocket wheel can be rotated around the axis of itself
Ground is mounted on the first end of the swing arm, and the second end of the swing arm and the vehicle frame are hinged, and second elastic component is connected to
Between the swing arm and the vehicle frame, and a sprocket wheel is driven to be pressed together on the chain.
2. bicycle according to claim 1 dials chain structure, it is characterised in that:
The fixing seat is provided with guide post with extending along the flywheel group that is axially facing of the hub spindle；
Described group of chain element further includes sliding seat, and the sliding seat is slidably connected with the guide post, and described group of sprocket wheel is around certainly
The axis of body is installed in rotation on the sliding seat, and the sliding seat can be slided along the relatively described flywheel group of the guide post,
First elastic component is connected between the fixing seat and the sliding seat.
3. bicycle according to claim 2 dials chain structure, it is characterised in that:
The sliding seat includes the connecting bracket of ontology and installation on the body, and the ontology and the guide post are slideably
Connection, described group of sprocket wheel are installed in rotation in connecting bracket around the axis of itself, described group of sprocket wheel and the connecting bracket
Between surround limit channels, described chain at least part is located in the limit channels.
4. bicycle according to claim 1 dials chain structure, it is characterised in that:
Described group of chain element includes hinged seat and wobble component, and the wobble component is hinged on the fixing seat and the hinged seat
Between, described group of sprocket wheel is installed in rotation on the hinged seat around the axis of itself, and the hinged seat can pass through the pendulum
The relatively described flywheel group of dynamic component is swung, and first elastic component is connected between the fixing seat and the hinged seat.
5. bicycle according to claim 1 dials chain structure, it is characterised in that:
The vehicle frame further includes fixed frame, and the fixed frame and the second end of the swing arm are hinged, and the fixed frame with it is described
Accommodating chamber is surrounded between the second end of swing arm, second elastic component is mounted in the accommodating chamber.
6. bicycle according to claim 5 dials chain structure, it is characterised in that:
Described chain device further includes chain cable fairlead, and the chain cable fairlead is rotatably coupled around the axis of itself with the fixed frame, and
The chain cable fairlead is engaged with the chain.
7. bicycle according to any one of claims 1 to 6 dials chain structure, it is characterised in that:
Described group of chain element and described chain device are located at the company in the axle center of the flywheel group and the axle center of first sprocket wheel
The two sides of line.
8. bicycle, including bicycle dial chain structure, selector and shift cable, the bicycle dials chain structure and includes:
Vehicle frame, the vehicle frame include being oppositely arranged the first rear fork and the second rear fork, and the selector is mounted on the handle of the vehicle frame
On hand, the first end of the shift cable is fixedly connected with the winder unit of the selector；
Hub spindle, the hub spindle ride between first rear fork and second rear fork；
First sprocket wheel, first sprocket wheel are installed in rotation in the middle part of the vehicle frame around the axis of itself；
Hub shell, the hub shell are rotatably mounted around on the hub spindle around the axis of itself；
Flywheel group, between first rear fork and second rear fork, the flywheel group is sleeved on described the flywheel group
The end of hub shell, the flywheel group include the second sprocket wheel of multiple and different diameters；
Chain, the chain are connected between first sprocket wheel and second sprocket wheel；
It is characterized in that, the bicycle dials chain structure further include:
Derailleur, the derailleur include fixing seat, dial chain element and the first elastic component, the fixing seat and first rear fork
Connection, on the fixing seat, described group of chain element includes that can dial sprocket wheel around own axis for described group of chain element installation,
The axis of described group of sprocket wheel is parallel to the axis of the hub spindle, and the chain is wound around second sprocket wheel and described group
Between sprocket wheel, the second end of the shift cable is connect with described group of chain element, and described group of chain element can the relatively described fixing seat shifting
Move and stir the chain and moved between multiple second sprocket wheels, first elastic component be connected to it is described dial chain element and
Between the fixing seat；
Chain device is opened, described chain device includes swing arm, sprocket wheel and the second elastic component, and described sprocket wheel can be rotated around the axis of itself
Ground is mounted on the first end of the swing arm, and the second end of the swing arm and the vehicle frame are hinged, and second elastic component is connected to
Between the swing arm and the vehicle frame, and a sprocket wheel is driven to be pressed together on the chain.
9. bicycle according to claim 8, it is characterised in that:
The fixing seat is provided with guide post with extending along the flywheel group that is axially facing of the hub spindle；
Described group of chain element further includes sliding seat, and the sliding seat is slidably connected with the guide post, and described group of sprocket wheel is around certainly
The axis of body is installed in rotation on the sliding seat, and the sliding seat can be slided along the relatively described flywheel group of the guide post,
First elastic component is connected between the fixing seat and the sliding seat.
10. bicycle according to claim 8, it is characterised in that:
Described group of chain element includes hinged seat and wobble component, and the wobble component is hinged on the fixing seat and the hinged seat
Between, described group of sprocket wheel is installed in rotation on the hinged seat around the axis of itself, and the hinged seat can pass through the pendulum
The relatively described flywheel group of dynamic component is swung, and the first elastic component is connected between the fixing seat and the hinged seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811486146.6A CN109436179A (en) | 2018-12-05 | 2018-12-05 | Bicycle dials chain structure and bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811486146.6A CN109436179A (en) | 2018-12-05 | 2018-12-05 | Bicycle dials chain structure and bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109436179A true CN109436179A (en) | 2019-03-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811486146.6A Pending CN109436179A (en) | 2018-12-05 | 2018-12-05 | Bicycle dials chain structure and bicycle |
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|---|---|
| CN (1) | CN109436179A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11560201B2 (en) * | 2020-05-14 | 2023-01-24 | Lal Bikes Inc. | Bicycle drivetrain |
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Effective date of registration: 20211202 Address after: 519000 factory building B-2, No. 8, Honghui fifth road, Shuanglin District, LIANGANG Industrial Zone, Zhuhai City, Guangdong Province Applicant after: ZHUHAI LTWOO CONTROLLER TECHNOLOGY CO.,LTD. Address before: 519000 unit a0210, block a, entrepreneurship building, Tsinghua Science Park (Zhuhai), No. 101, University Road, Tangjiawan Town, high tech Zone, Zhuhai, Guangdong Applicant before: ZHUHAI DIRUILE TECHNOLOGY Co.,Ltd. |
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Address after: 519000 building B-2, No. 8, Honghui fifth road, Shuanglin District, LIANGANG Industrial Zone, Jinwan District, Zhuhai City, Guangdong Province Applicant after: Zhuhai Blueprint Sports Technology Co.,Ltd. Address before: 519000 factory building B-2, No. 8, Honghui fifth road, Shuanglin District, LIANGANG Industrial Zone, Zhuhai City, Guangdong Province Applicant before: ZHUHAI LTWOO CONTROLLER TECHNOLOGY CO.,LTD. |
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