CN201287815Y

CN201287815Y - Engine-driven device for speed variator of bicycle

Info

Publication number: CN201287815Y
Application number: CNU2008203022233U
Authority: CN
Inventors: 张式银
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-09-25
Filing date: 2008-09-25
Publication date: 2009-08-12
Anticipated expiration: 2018-09-25

Abstract

The utility model discloses a driving device of a bicycle speed changer, in particular to a driving structure of a bicycle speed changer which is different from the traditional driving steel cable traction type, which comprises a motor group, a limit seat and a sliding frame action part of the bicycle speed changer, wherein the motor group is connected with the limit seat and locked on a bicycle frame, and a transmission shaft of the motor group is provided with a thread section; the limiting seat is provided with a limiting column and a through hole corresponding to the position of the transmission shaft; the sliding frame action part is provided with a first action hole and a second action hole; by the above structure, the sliding frame of the bicycle speed changer is driven to move forwards or backwards through the operation of the transmission shaft of the motor set, so as to shift the bicycle chain in real time for speed change switching, thereby facilitating and accurate speed change.

Description

Bicycle speed-varying unit is held up device

Technical field

The utility model is held up device relevant for a kind of bicycle speed-varying unit.

Background technology

In the Regular Bicycle, change-speed box has become standard and has been equipped with, and by the application of change-speed box, to increase the comfort feature that the user drives bicycle; For the variable speed control to bicycle speed-varying unit, the general tractive modes that activate cable wire that adopt with its sledge position of adjusting bicycle speed-varying unit, thereby are switched the conversion of cycle chain between different gears more, and then change user's the application of force degree and the speed of a motor vehicle; The case technology can be with reference to TaiWan, China patent the 95122096th before relevant, 96116325,95110577,96107767,96110373,95123077,95119951,96112511,96108618,96300983,96215675,96101778,96107596,95119083,95109194,95100087,95110568,95107048,95111379,95109118,95107450,96101651,95105845,95302630,95302628,95107048,95302254,95302252,95207038,95123077,94138219,95127785,95122096,95107450,95119083,95110568,94132860,94141926,94133290,94114426,94138219,95209007,95121481 etc. all before case.

Existing bicycle speed-varying unit manner of execution, the general tractive mode that activates cable wire that adopts more, to regulate its sledge position of bicycle speed-varying unit, though this mode is simple, judge, spur this actuatings cable wire voluntarily but must rely on the user when switching and since activate steel lock length length have again cooresponding flexible, so the elasticity that the accuracy Chang Yingang of adjustment locks and influencing, and feel to promote the accuracy of the real-time conversion of bicycle speed-varying unit in fact by the user merely as switching foundation.

The utility model content

Technical problem to be solved in the utility model is, at the deficiencies in the prior art, provides a kind of bicycle chain row culture speed change of stirring in real time to switch, and its speed change is more convenient holds up device with bicycle speed-varying unit accurately.

For solving the problems of the technologies described above, the technical scheme that the utility model adopted is: a kind of bicycle speed-varying unit is held up device, it includes the balladeur train service portion of a groups of motors, a limit base and a bicycle speed-varying unit, the transmission shaft ora terminalis of this groups of motors is provided with a thread segment, the body of this limit base is provided with a limited post and transmission shaft that should groups of motors is provided with one wears the open-work of rank for transmission shaft, and this balladeur train service portion is provided with one first functional hole and one second functional hole; This thread segment is engaged in first functional hole of the balladeur train service portion of this bicycle speed-varying unit; This spacing column sleeve is held in the mouth in second functional hole of the balladeur train service portion of bicycle speed-varying unit.

Groups of motors body of the present utility model is provided with at least more than one first lockhole.

Locating part of the present utility model is a C type latch closure.

Limited post end of the present utility model is provided with an annular groove, when holding in the mouth second functional hole in its balladeur train service portion of this bicycle speed-varying unit for this spacing column sleeve, can be sheathed on this annular groove for a locating part.

Limit base of the present utility model is provided with second lockhole with its coupling to position that should its first lockhole of groups of motors.

Compared with prior art, the beneficial effect that the utility model had is: the thread segment of the utility model groups of motors transmission shaft is engaged in first functional hole of the balladeur train service portion of bicycle speed-varying unit; This spacing column sleeve is held in the mouth in second functional hole of the balladeur train service portion of bicycle speed-varying unit, so just can be by the running of its transmission shaft of groups of motors, do forward or displacement backward with the balladeur train that drives this bicycle speed-varying unit, in order to do switching to stir bicycle chain row culture speed change in real time, and make its speed change more convenient with accurately.

Description of drawings

Fig. 1 is the utility model three-dimensional exploded view.

Fig. 2 is the utility model schematic perspective view.

Fig. 3 is the utility model action generalized section.

Fig. 4 is that the utility model is in Front Derailleur balladeur train embodiment scheme drawing.

Fig. 5 is that the utility model is in Rear Derailleur balladeur train embodiment scheme drawing.

Fig. 6 is the utility model second embodiment three-dimensional exploded view.

The specific embodiment

See also Fig. 1, shown in Figure 2, the utility model system provides a kind of bicycle speed-varying unit to hold up device, and it mainly is locked on cycle frame by a groups of motors 1, a limit base 2, cooperates the balladeur train service portion 3 of a bicycle speed-varying unit to form, wherein:

This groups of motors 1, its body is provided with at least more than one first lockhole 11, and transmission shaft 12 ora terminalis of groups of motors 1 are provided with a thread segment 13 and an annular groove 131, this thread segment 13 is engaged in first functional hole 31 (its be have the hole of negative thread) of its balladeur train service portion 3 of this bicycle speed-varying unit and cooperates a locating part 132 sheathed this annular grooves 131 that are positioned, and this locating part 132 is a C type latch closure;

This limit base 2, its body is provided with a limited post 21 and the position of transmission shaft 12 that should groups of motors 1 is provided with an open-work 22, wear rank for transmission shaft 12, these limited post 21 ends are provided with an annular groove 211, when holding in the mouth second functional hole 32 in the balladeur train service portion 3 of bicycle speed-varying unit for this limited post 21 covers, can supply a locating part 212 sheathed this annular grooves 211 that are positioned, this locating part 212 is a C type latch closure, again first lockhole 1 that 2 pairs of this limit bases should groups of motors 1

1 position is provided with one second lockhole 23, and is fixing for a locked assembly 4 lock knots;

This balladeur train service portion 3 which is provided with one first functional hole 31 and one second functional hole 32;

By said modules, groups of motors 1 cooperates limit base 2 locks to tie in the default place of cycle frame, in order to do with the transmission shaft 12 of this groups of motors 1 and the limited post 21 of limit base 2, can distinguish corresponding cover holds in the mouth in first of the balladeur train service portion 3 of bicycle speed-varying unit, two functional holes 31,32, as Fig. 3, structure shown in Figure 4, system is applied to the embodiment of its balladeur train 5 of bicycle Front Derailleur, and structure shown in Figure 5, system is applied to the embodiment of its balladeur train 6 of bicycle rear derailleur, thread segment 13 when groups of motors 1 running on its drive shaft 12 and first functional hole 31 of its balladeur train service portion 3 of this bicycle speed-varying unit (its be one have the hole of negative thread) engagement, and do forward or displacement backward according to transmission shaft 12 hand of rotation (forward or reverse), so just, can stir cycle chain T in real time and oppose and answer speed change to switch, and make its speed change more convenient with accurately.

As shown in Figure 6, be another embodiment of the utility model, wherein this groups of motors 1 ' is a transverse type groups of motors, and its manner of execution is same as the previously described embodiments, wherein the action of transmission shaft 12 ', thread segment 13 ', limited post 21 ' and structure do not change, so seldom give unnecessary details.

In sum, the utility model to replace the existing tractive mode that activates cable wire of utilizing, is effectively avoided the driving of bicycle speed-varying unit balladeur train by groups of motors can't make the disappearance that accuracy is adjusted, and is further promoted the benefit of bicycle speed-varying unit.

The specific embodiment that is proposed in the utility model content is only in order to convenient explanation technology contents of the present utility model, but not with the utility model narrow sense be limited to the foregoing description, under the situation that does not exceed the utility model spirit and claims, the many variations of being done is implemented, and still belongs to the utility model scope.

Claims

[Claim 1] An actuating device for a bicycle transmission, which is characterized in that it includes a motor group, a limit seat and a sliding frame action part of a bicycle transmission, the end edge of the transmission shaft of the motor group is provided with a threaded section, the The body of the limit seat is provided with a limit post and the drive shaft corresponding to the motor group is provided with a through hole for the drive shaft to pass through, and the sliding frame action part is provided with a first action hole and a second action hole; The threaded section of the transmission shaft is engaged with the first action hole of the carriage action part of the bicycle transmission; the limiting column is sleeved in the second action hole of the carriage action part of the bicycle transmission.

[Claim 2] The bicycle transmission engine according to claim 1, characterized in that, the motor unit body is provided with at least one first locking hole.

[Claim 3] The bicycle transmission engine according to claim 1, characterized in that, the end edge of the transmission shaft is provided with an annular groove for setting and positioning a limiting member.

[Claim 4] The bicycle derailleur according to claim 1, characterized in that, the end of the limiting post is provided with an annular groove for a limiting member to be set and positioned.

[Claim 5] The bicycle transmission engine according to claim 1, wherein the first function hole is a hole with an internal thread.