CN206664852U - Firm joint device, front chain mover and bicycle for bicycle front derailleur - Google Patents

Abstract

A kind of firm joint device for bicycle front derailleur, include：One support unit, a pad, a locking part, and an adjustment part.Support unit is arranged between mounting bracket and body, and one end of support unit is resisted against seat pipe and the other end has one to support to arrive in portion.Pad is arranged at mounting bracket and has an adjustment portion, and mounting bracket is between support unit and pad.Locking part is sequentially to be arranged in pad, mounting bracket, support unit and body, and pad, support unit and body are fixedly arranged on into mounting bracket.Adjustment part is located at the adjustment portion of pad, and one end of adjustment part pushes against and supports to arrive in portion in support unit, when adjustment part moves along its axis, can adjust axle using derailleur with mobile gasket, locking part and body and be pivoted as axle center.

Description

Firm joint device, front chain mover and bicycle for bicycle front derailleur

Technical field

The present invention is on bicycle front derailleur, particularly relates to the firm joint device for bicycle front derailleur, and make With the bicycle front derailleur and bicycle of the affixed mechanism.

Background technology

In order in response to different road conditions or coordinate rider muscle power allocate, bicycle more can equipped with a front chain mover with One rear chiain-moving device, front chain mover mainly collocation large fluted disc, rear chiain-moving device is installed together with sprocket wheel, can so be passed through Change the gear ratio between large fluted disc and sprocket wheel to reach speed changing effect.

Traditional front chain mover, consists predominantly of a fairleader, a gear unit and a body, and the front chain mover passes through one The body is installed in the mounting bracket of the seat pipe of the bicycle by locking screw, due to the position of the mounting bracket of every bicycle Put not fully identical with precision, therefore when front chain mover is installed on into the vehicle frame for the first time, user needs to adjust front derailleur Device and vehicle frame or the relative position and angle of mounting bracket, to ensure speed-change and gearshift energy smooth execution；Furthermore when bicycle is in riding After multiplying a period of time, front chain mover may also can relative proper motion car seat pipe produce displacement so that the fairleader can not be swimmingly A chain is driven to be converted between the different tooth positions of large fluted disc.

Foregoing in order to solve the problems, such as, No. 2520480 patents of European Patent No. (B1 of EP 2520480) provide one kind certainly Driving front derailleur body and the adjustable apparatus shelved for this body, the apparatus include a fixed part, a movable part And a device, the fixed part are located at the derailleur body side, the movable part be can the mode of angular movement be arranged on the fixed part Upper and shelve part with one and be resisted against seat pipe, the device is to be used to adjusting the movable part relative to the fixed part to be switched to one predetermined Operation Angle Position in, to adjust angle of the body of front chain mover relative to the mounting bracket.

Because foregoing apparatus need to be located in the space between this body side surface of Bicycle front derailleur and the seat pipe, and should The fixed part of apparatus needs advance spiral shell to be located at the body, thus before the bicycle speed change and the seat pipe structure and size all relatively Ground change is answered, its obvious versatility is simultaneously bad, still there is improved space.

Utility model content

Edge is that the purpose of this utility model is providing a kind of firm joint device, front chain mover for bicycle front derailleur And bicycle, its structure is novel, versatility is good and installation strength is high.

To reach above-mentioned purpose, a kind of firm joint device for bicycle front derailleur provided by the utility model should Bicycle front derailleur is mounted to one and is provided with the bicycle saddle tube of a mounting bracket, and the bicycle front derailleur includes one Body, the body are can to adjust axle using a derailleur to pivot with respect to the mounting bracket as axle center, and the firm joint device is characterised by Include：One support unit, a pad, a locking part, and an adjustment part.

The support unit is disposed between the mounting bracket and the body, and one end of the support unit is resisted against the seat Pipe, the other end of the support unit have one to support to arrive in portion.The pad is movably arranged in the mounting bracket, the mounting bracket Frame is located between the support unit and the pad, and the pad has an adjustment portion.The locking part is sequentially worn along an installation axle In the pad, the mounting bracket, the support unit and the body, and the pad, the support unit and the body are fixedly arranged on this In mounting bracket.The adjustment part is be located at pad adjustment portion with can moving along its axis, and one end of the adjustment part pushes against Support to arrive in portion in the support unit, when the adjustment part moves along its axis, can drive the pad using the derailleur adjust axle as Axle center pivots, and then drives the locking part and the body to adjust axle using the derailleur and pivoted as axle center.

In other words, the utility model is by foregoing architectural feature, when bicycle front derailleur in first installation or uses After a period of time, and when needing to adjust the relative position of the bicycle front derailleur, user only needs the locking part being adjusted to light The state of light fastening (that is, false fixed), then adjusting the adjustment part again makes it along its axial displacement, can so drive the pad, The locking part and the body are axle center pivot using derailleur adjustment axle, and to be adjusted to after correct position, user again locks this Part is locked, and just completes the adjustment operation of bicycle front derailleur.

It is preferred that the support unit has an arc carrier, the outer peripheral face of the arc carrier and the shape of inner peripheral surface Be respectively with the mounting bracket and this mates.

It is preferred that the portion of supporting to arrive in of the support unit be from the arc carrier towards away from the installation axle direction extension and Go out, the pad has a pedestal, and the adjustment portion of the pad is extended from the pedestal towards the direction away from the installation axle.

It is preferred that the adjustment portion of the pad has a screw, the adjustment part has a thread segment, and the thread segment spiral shell is located at should Screw.

It is preferred that derailleur adjustment axle is orthogonal with the installation axle.

It is preferred that the direction for being axially parallel to the installation axle of the adjustment part.

It is preferred that the support unit has a fitting, the fitting is located at the side of the arc carrier and is resisted against The seat pipe.

It is preferred that the fitting have a butting section and one relative to the butting section embedding part, the embedding part have two Ring arm and a boss, the arc carrier have a clamping section and a stopper slot, and two ring arm is located on the clamping section, and this is convex Decometer is located in the stopper slot.

It is preferred that the pad has a perforation, the locking part has a bar portion, and the internal diameter of the perforation is worn equal to the locking part External diameter at the perforation.

In addition, the utility model also provides a kind of bicycle front derailleur, it is to include foregoing firm joint device.This practicality It is new that a kind of bicycle is also provided, it is to include foregoing firm joint device.

About firm joint device provided by the utility model for bicycle front derailleur, using the affixed mechanism from Detailed configuration, feature, assembling or the occupation mode of driving front chain mover and bicycle, will be retouched in follow-up detailed description State.However, having usually intellectual in the utility model field should be able to understand, it is such to describe in detail and implement this practicality newly Specific embodiment cited by type, it is only for illustrating the utility model, and is not used to limit patent application of the present utility model Scope.

Brief description of the drawings

Where describing technical characterstic of the present utility model in detail, with reference to embodiments and coordinate brief description of the drawings such as Afterwards, wherein：

Fig. 1 is that the bicycle front derailleur of the utility model illustrated embodiment is installed on the bike saddle provided with mounting bracket Stereogram on pipe.

Fig. 2 is the three-dimensional exploded view of the bicycle front derailleur of the utility model illustrated embodiment.

Fig. 3 is the bicycle front derailleur of the utility model illustrated embodiment in the three-dimensional exploded view at another visual angle.

Fig. 4 is that the bicycle front derailleur of the utility model illustrated embodiment adjusts bowing for direction of principal axis in the vertical derailleur Pseudosection, mainly show situation of the adjustment part before adjustment.

Fig. 5 is that the bicycle front derailleur of the utility model illustrated embodiment adjusts bowing for direction of principal axis in the vertical derailleur Pseudosection, mainly show situation of the adjustment part after adjustment.

Fig. 6 is that the top plan view that (Fig. 5, will be represented by dashed line) after (Fig. 4, indicated by the solid line) before adjustment and adjustment is overlapping Schematic diagram afterwards.

Embodiment

Please referring initially to Fig. 1 to Fig. 3, the firm joint device 15 of the bicycle front derailleur 10 of the utility model illustrated embodiment, The bicycle front derailleur 10 is mounted in the seat pipe 3 of a bicycle 1 for being provided with a mounting bracket 5, the bicycle front derailleur Device 10 includes a body 11, a gear unit 12 and a fairleader 13, the body 11 be can be adjusted using a derailleur axle A1 as Axle center pivots with respect to the mounting bracket 5.In embodiment, it is (oblique to front-wheel direction that bicycle front derailleur 10 is mounted in lower end Front) in the inclined seat pipe 3, the mounting bracket 5 is the elongated lamellar body 6 extended along the direction of seat pipe 3, and has a through hole 7, It is in circular arc bending that section of the mounting bracket 5 in the vertical direction of seat pipe 3, which is,.

It is to enter for the structure of firm joint device 15 of the bicycle front derailleur 10 of the utility model illustrated embodiment below One step explanation.

Referring again to Fig. 2 to Fig. 3, the firm joint device 15 of the bicycle front derailleur 10, include：One support unit 20, One pad 40, a locking part 50 and an adjustment part 60.

The support unit 20, be disposed between the mounting bracket 5 and the body 11, one end of the support unit 20 against In the seat pipe 3, the other end of the support unit 20 has one to support to arrive in portion 22.In the present embodiment, the support unit 20 has one Arc carrier 24, the outer peripheral face 242 of the arc carrier 24 and the shape of inner peripheral surface 244 be respectively with the mounting bracket 5 and The body 11 is engaged；In addition, the portion 22 that supports to arrive in of the support unit 20 is from the arc carrier 24 towards away from an installation axle A2 Direction extend.

The pad 40, be movably arranged in the mounting bracket 5, the mounting bracket 5 be located at the support unit 20 and Between the pad 40, the pad 40 has an adjustment portion 42.In addition, the pad 40 has a pedestal 44, the adjustment of the pad 40 Portion 42 is extended from the pedestal 44 towards the direction away from installation axle A2, and the position of the adjustment portion 42 of the pad 40 is and this The position for supporting to arrive in portion 22 of support unit 20 is corresponding, and the adjustment portion 42 of the pad 40 has a screw 46.

The locking part 50, be along installation axle A2 direction be sequentially arranged in the pad 40, the mounting bracket 5 through hole 7, The support unit 20 and the body 11, and the pad 40, the support unit 20 and the body 11 are fixedly arranged on the mounting bracket 5 On.

The adjustment part 60, is be located at the pad 40 adjustment portion 42 with can moving along its axis, and the one of the adjustment part 60 End pushes against supports to arrive in portion 22 in the support unit 20.In the present embodiment, the adjustment part 60 has a thread segment 62, the adjustment part 60 by the spiral shell of thread segment 62 located at the pad 40 adjustment portion 42 screw 46 in, that is to say, that when the adjustment part 60 by When power rotates, by the thread segment 62 and the Matching Relation of the screw 46, the adjustment part 60 can be made along its axially opposing pad 40 is movable.

It is worth remarking additionally, in the present embodiment, derailleur adjustment axle A1 and installation axle A2 is orthogonal thereto setting, And the axial direction of the adjustment part 60 is parallel to installation axle A2 direction.Furthermore the pedestal 44 of the pad 40 has a perforation 442, the locking part 50 has a bar portion 52, and the internal diameter of the perforation 442 of the pad 40 is substantially equal to the locking part 50 and is arranged in External diameter at the perforation 442.

In addition, the support unit 20 has a fitting 30, the fitting 30 is located at the side of the arc carrier 24 simultaneously The seat pipe 3 is resisted against, in other words, the fitting 30 is provided on the arc carrier 24 and supports to arrive in the another of portion 22 away from this Side.The fitting 30 have a butting section 32 and one relative to the butting section 32 embedding part 34, the butting section 32 is connected to this Seat pipe 3, the embedding part 34 have two ring arm 36 and a boss 38, and the arc carrier 24 has one towards bicycle rear extension The stopper slot 28 of clamping section 26 and one, two ring arm 36 of the embedding part 34 of the fitting 30 are surrounded on the clamping of the arc carrier 24 Section 26, and the boss 38 of the fitting 30 is arranged in the stopper slot 28 of the arc carrier 24.

The structure of the utility model illustrated embodiment is explained above, next illustrates the mode of operation and work(of the present embodiment Where effect.

Referring again to Fig. 2 to Fig. 6, because the position of the mounting bracket of every bicycle and precision are not fully identical, because , when the bicycle front derailleur 10 is installed on into the seat pipe 3 for the first time, user needs first to adjust the bicycle front derailleur for this 10 with the relative position and angle of the seat pipe 3 (or the mounting bracket 5), to ensure speed-change and gearshift energy smooth execution；Furthermore when certainly Front chain mover 10 drive a vehicle after riding after a while, its front chain mover may be because vibrations, collision or other reasonses and occur Skew, and then cause user can not swimmingly perform the start of speed-change and gearshift.When running into afore-mentioned, user may require that logical Cross and adjust the angle of the bicycle front derailleur 10 to improve the bad state of speed change.Before herein using Fig. 4 as angle adjustment Schematic diagram (now for the adjustment part 60 towards the direction of body 11 advance before aspect), and using Fig. 5 as angle adjustment after Schematic diagram (aspect after now advancing for the adjustment part 60 towards the direction of body 11), Fig. 6 are then by the Fig. 4 (solid line in figure Part) and Fig. 5 (dotted portion in figure) it is overlapping after schematic diagram.

In angle adjustment, user is firstly the need of the shape that the locking part 50 is adjusted to gently to fasten to (that is, false fixed) State, the person of connecing forces in the adjustment part 60 again makes it produce rotation, to drive the adjustment part 60 along it axially with respect to the pad 40 It is movable.The aspect advanced herein with the adjustment part 60 towards the direction of body 11 explains, due to the end of the adjustment part 60 End pushes against supports to arrive in portion 22 in the support unit 20, and the seat pipe is resisted against along with the support unit 20 is limited to the fitting 30 3, and the architectural feature of rotation can not be produced by the pushing and pressing of the adjustment part 60, therefore, gradually advance with the adjustment part 60 During, the support unit 20 can't pivot therewith with the mounting bracket 5, on the contrary, the adjustment part 60 can drive the pad 40 adjust axle A1 using the derailleur pivots as axle center, and then drives the locking part 50 and the body 11 to adjust axle with the derailleur again A1 pivots for axle center, and after the body 11 and fairleader 13 to the correct position to be adjusted, user again locks the locking part 50, just Complete the adjustment operation of bicycle front derailleur 10.In addition, the utility model also has fine setting mechanism, when the bicycle front derailleur When device 10 only needs to adjust slightly, user can be reached and be dialled before finely tuning the bicycle by way of the micro- turn of adjustment part 60 The purpose of chain device 10, therefore also it is avoided that traditional structure adjusts excessive situation because user's force is excessive.

Though aforementioned operation mode is to be illustrated using the adjustment part 60 towards the aspect that the direction of body 11 is advanced as start, so It is art and the embodiment aspect that the adjustment part 60 retreats towards the direction of body 11 has identical start principle Person can be appreciated after refering to preceding description, and appearance repeats no more.

Furthermore in order to lead in response to different types of seat pipe 3 and front chain mover 10, firm joint device 15 of the present utility model The mode for the fitting 30 for changing different size shapes is crossed, firm joint device 15 of the present utility model is widely applicable for various The car type and front chain mover of type.Compared to the structure of traditional front chain mover, the utility model has brand-new architectural feature, And it also has the advantages that operation ease and versatility are preferable.

Finally, it is necessary to illustrate again, the utility model composed component disclosed in previous embodiment is only to lift Example explanation, not it is used for limiting the scope of the claims of the present utility model, the simple knot that every not unconventional the utility model spirit is made Structure is retouched or change, or the replacement with other equivalence elements, should belong to the category that the utility model claims scope covers.

Claims (11)

1. a kind of firm joint device for bicycle front derailleur, the bicycle front derailleur is installed on one and is provided with a mounting bracket Bicycle saddle tube on, the bicycle front derailleur includes a body, the body using a derailleur adjust axle it is relative as axle center The mounting bracket pivots, it is characterised in that the firm joint device includes：

One support unit, it is arranged between the mounting bracket and the body, one end of the support unit is resisted against the seat pipe, the branch The other end of support unit has one to support to arrive in portion；

One pad, it is movably arranged in the mounting bracket, the mounting bracket is located between the support unit and the pad, should Pad has an adjustment portion；

One locking part, the pad, the mounting bracket, the support unit and the body are sequentially arranged in along an installation axle, and should Pad, the support unit and the body are fixedly arranged in the mounting bracket；And

One adjustment part, it is located at the adjustment portion of the pad with can moving along its axis, and one end of the adjustment part is pushed against in the support Unit supports to arrive in portion, when the adjustment part moves along its axis, the pad can be driven to adjust axle using the derailleur and pivoted as axle center, And then drive the locking part and the body to adjust axle using the derailleur and pivoted as axle center.

2. it is used for the firm joint device of bicycle front derailleur as claimed in claim 1, it is characterised in that the support unit has One arc carrier, the outer peripheral face of the arc carrier and the shape of inner peripheral surface match with the mounting bracket and the body respectively Close.

3. it is used for the firm joint device of bicycle front derailleur as claimed in claim 2, it is characterised in that the support of the support unit Support is extended from the arc carrier towards the direction away from the installation axle, and the pad has a pedestal, the adjustment of the pad Extend from the pedestal towards the direction away from the installation axle in portion.

4. it is used for the firm joint device of bicycle front derailleur as claimed in claim 3, it is characterised in that the adjustment portion of the pad With a screw, the adjustment part has a thread segment, and the thread segment spiral shell is located at the screw.

5. it is used for the firm joint device of bicycle front derailleur as claimed in claim 3, it is characterised in that the derailleur adjusts axle It is orthogonal with the installation axle.

6. it is used for the firm joint device of bicycle front derailleur as claimed in claim 3, it is characterised in that the axial direction of the adjustment part Parallel to the direction of the installation axle.

7. it is used for the firm joint device of bicycle front derailleur as claimed in claim 3, it is characterised in that the support unit has One fitting, the fitting is located at the side of the arc carrier and is resisted against the seat pipe.

8. it is used for the firm joint device of bicycle front derailleur as claimed in claim 7, it is characterised in that the fitting has one Butting section and one relative to the butting section embedding part, the embedding part has two ring arm and a boss, and the arc carrier has One clamping section and a stopper slot, two ring arm is located on the clamping section, and the boss is arranged in the stopper slot.

9. it is used for the firm joint device of bicycle front derailleur as claimed in claim 3, it is characterised in that the pad has consistent Hole, the locking part have a bar portion, and the internal diameter of the perforation is equal to the external diameter that the locking part is arranged at the perforation.

10. a kind of front chain mover of bicycle, it is characterised in that including the affixed dress described in any one of preceding claims 1 to 9 Put.

11. a kind of bicycle, it is characterised in that including the firm joint device described in any one of preceding claims 1 to 9.