CN2485159Y

CN2485159Y - Improved hub clutcher of bicycle

Info

Publication number: CN2485159Y
Application number: CN 01221353
Authority: CN
Inventors: 吴锦湖
Original assignee: DAKANG INDUSTRIAL Co Ltd
Current assignee: DAKANG INDUSTRIAL Co Ltd
Priority date: 2001-06-01
Filing date: 2001-06-01
Publication date: 2002-04-10
Anticipated expiration: 2011-06-01

Abstract

The utility model relates to an improved bicycle hub device. The utility model is characterized in that: a sleeve with joggling holes therein and a ladder-shaped pipe body are reeved on an axostyle which is arranged inside of the hub. A resisting component which is formed by the ball bearings is used for pressing a spring and being contained in the axostyle combining holes or a reed whose two ends can curved to be the nipping ends which have elasticity generate the nipping and positioning functions of the point contact to the surfaces of the inner wall of the sleeve and in the distance remained between the axostyle and the sleeve and. The utility model can determine whether the inner wall of the hub is wedged by instant reaction, in order to reduce friction and loss.

Description

Improved bicycle hub arrangement of clutch

The utility model relates to bicycle, refers to a kind of bicycle hub arrangement of clutch especially.

No. 298164 (application number: 85207413) " speed varying hub structure " novel patent case of bulletin checked and approved in Taiwan, it is bar that screws togather of end insertion with flywheel at flower hub inner shaft lever, the engagement that is spirally connected mutually of the sleeve of holding inside to be provided with screw with other, utilize bestowing of spring axial thrust, when pedal is trampled and turned chain, flywheel and transmit kinetic energy strength when screwing togather bar, the interlock sleeve agrees with or separates along axis direction and flower hub internal face are urgent, whether is continuously the running condition that transmission of power or interruption are isolated into idle running with decision.

Because sleeve is screwing togather on the bar to axial precession or is oppositely revolving the principle of moving back, the technological means of revolving locknut with bolt is identical, that is nut and the two hand of rotation of bolt are opposite each other, the screw lock action that beginning can unscrew or screw, arbitrary element is stressed and rotate another element separately, the two will can't precession or revolve and move back for rotation in the same way, is to utilize spring that sleeve is bestowed axial thrust, is moved back so that it can screw togather the bar precession or revolve; But because of " spring can't limit sleeve and not rotate in the same way with screwing togather bar ", in initial moment, being easy to generate can't the immediate reaction precession or revolve the drawback that deactuate is done during use.

No. 336618 (application number: 86205033) " arrangement of clutch of bicycle drive shaft " novel patent case of bulletin checked and approved in Taiwan, passing colored hub in-to-in axostylus axostyle one end equally, insert a bar that screws togather with flywheel, the engagement that is spirally connected mutually of the sleeve of holding inside to be provided with screw with other, different is: the external diameter that utilizes sleeve body between this axostylus axostyle and bearing, chuck C shape sheet and directly penetrate the internal diameter of sleeve, this C shape sheet ora terminalis is bent with the guiding part that can embed stack shell, sleeve is provided can be along with screwing togather the homodromal directed strength of bar, make it agree with or separate, determine whether being continuously the running condition that transmission of power or interruption are isolated into idle running along axis direction and flower hub internal face are urgent.

But in the use, " causes such as guiding part is easily improper because of driving, the collision of jumping are lost or are ruptured ", sleeve will be because of losing the support of directed strength, and can be to rotate in the same way along with screwing togather bar, can't interrupt or sustained delivery power.

The purpose of this utility model, provide a kind of bicycle hub arrangement of clutch, it produces elasticity clipping power to flower hub inner sleeve, thereby finishes the precession that colored hub inwall agrees with, separates reliably or revolve the deactuate work, its sound construction also can reduce or reduce the loss of transmission of power.

For achieving the above object, the utility model provides a kind of bicycle hub arrangement of clutch, and this arrangement of clutch is worn group on flower hub in-to-in axostylus axostyle, and comprising: sleeve has engaging hole in the tube; Screw togather bar, be stepped body, its shaft core position has perforation, and the outer rim of the less end of diameter is able to odd number or plural thread and forms and this engaging hole bonded assembly spiro union portion, and the bigger end of diameter is a head, in order to the flywheel of ining succession; Its characteristics are: retained a spacing between this axostylus axostyle and the sleeve, corresponding quill shaft is provided with one and resists member in it in the scope of displacement movement.

According to embodiment of the present utility model, above-mentioned resistance member comprises a spring, it penetrates in the combined hole that runs through axostylus axostyle, its two end opening partly is provided with ball, and lock by a hollow screwed pipe, wherein, the caliber of at least one end, exposes part pearl body and is with sleeve inner to contact to form the hole of bead less than this ball diameter.In addition, above-mentioned resistance member also can be the reed that its bending two ends becomes to have the elasticity clamping end, and each clamping end system and sleeve inner and axostylus axostyle outside are and contact.

Below in conjunction with accompanying drawing the specific embodiment of the present utility model is further described.

Fig. 1 is that arrangement of clutch first embodiment is installed in the section plan view in the colored hub.

Fig. 2 is about the cutaway view of connection relation between sleeve, axostylus axostyle and reed three in Fig. 1 arrangement of clutch.

Fig. 3 is the exploded perspective view of arrangement of clutch second embodiment.

Fig. 4 is that arrangement of clutch second embodiment is installed on the section plan view in the colored hub.

Fig. 5 is about the cutaway view of connection relation between sleeve, axostylus axostyle and resistance member three in Fig. 4 arrangement of clutch.

Fig. 6 is the partial enlarged drawing of relevant arrangement of clutch among Fig. 4.

First embodiment can see that colored hub 10 forms 11, one axostylus axostyles of contoured inwall, 12 intercalation bearings 13 and is fixed on an end of this inwall 11 with nut 14 because of the hollow tubular inside diameter is not of uniform size at Fig. 1, and penetrates from other end and to expose; One or above ring plate 21, pass axostylus axostyle 12 and be flattened on the one side that bearing 13 is arranged in colored hub 10 inwalls 11, in regular turn sleeve 22, hollow tubular are screwed togather bar 24 again and pass axostylus axostyle 12 one by one, this sleeve 22 is pushed in the inwall 11 to be contacted with ring plate 21, this screws togather 24 on bar and 10 side bearing 13 intercalations in addition of flower hub, fixes with nut 14 interlockings again.

The above-mentioned bar 24 that screws togather is stair-stepping body, shaft core position has perforation 25 and wears pivot on axostylus axostyle 12, it is positioned at the less end of colored hub 10 interior diameters, the external diameter periphery is able to single thread or two thread or plural thread and forms and these sleeve 22 ingear spiro union portions 26, middle part and bearing 13 intercalations location, the maximum gauge end then is that head 27 is located with clasp 16 engagings for flywheel 15, these sleeve 22 inside have the engaging hole 23 of thread shape, can be turned 20 interlocks of spiro union portion that screw togather bar 24 by flywheel 15, and along the axis direction displacement and make its external diameter with the flower hub 10 inwall 11 smooth agreeing with, to finish the main composition element of colored hub 10 inner arrangement of clutch 20.

Cooperate Fig. 2 to see, between sleeve 22 and axostylus axostyle 12, retain the metric space of an annular, can be referred to as spacing 28, be enough to place one or above reed 29 in it, these reed 29 both sides are bent into similar circle or circular-arc clamping end 30, each clamping end 30 is that the mode with a friction distinctly contacts with sleeve 22 internal diameters, axostylus axostyle 12 external diameters, therefore, can have following advantage than the above-mentioned thing of commonly seeing in use:

1. sleeve 22 utilizes the clipping power that the contact of 29 of reeds is bestowed, and be enough to support its directional tagging and can rotate in the same way along with screwing togather bar 24, so in the moment that flywheel 15 transmits kinetic energy, can the immediate response precession or revolve the deactuate work.

2. jump or other approach when using at car body, the stress that is transmitted by sleeve 22 will be absorbed by reed 29 clamping ends 30, no longer include the possibility that fracture can't be used.

3. the point of 12 of reed 29 clamping ends 30 and sleeve 22, axostylus axostyles contacts, and its friction coefficient is less than the thing of commonly seeing, so during kinetic energy transmits loss is reduced.

Fig. 3 shows second embodiment of arrangement of clutch 20, this device includes sleeve 22, screws togather bar 24 and resists member 32, wherein, screw togather bar 24 and still be hollow tubular body, utilize the set perforation in axle center 25 to wear pivot on axostylus axostyle 12, one end external diameter of contiguous this sleeve 22 is with single thread or two thread or the formation of plural thread and its ingear spiro union portion 26, end is stepped head 27 in addition, utilize one-body molded technological means to form the fluted disc 31 of continuous dentation, with the engaging that the replaces existing flywheel structure of ining succession at periphery; This resists member 32, is to be penetrated by spring 33 to place in the combined hole 17 that axostylus axostyle 12 runs through, and the opening of two ends is placed with ball 34 respectively, again the screwed pipe 35 of hollow is locked form.

From Fig. 4,5,6 legends that disclosed are learnt, axostylus axostyle 12 passes colored hub 10 inwalls 11, one end and bearing 13 intercalations and fixing with nut 14, two ring plates 21 are counted the pearl dish 18 that steel ball constitutes together with a lamellar body clipping, pass axostylus axostyle 12 and be flattened on the one side that bearing 13 is positioned at inwall 11, in regular turn with sleeve 22, screw togather bar 24 and pass axostylus axostyle 12 one by one, this sleeve 22 is contacted with ring plate 21 in inwall 11, this screws togather 24 on bar and 10 side bearing 13 intercalations in addition of flower hub, fix with nut 14 interlockings again, because these sleeve 22 inside have the engaging hole 23 of thread shape, can be turned 26 interlocks of spiro union portion that screw togather bar 24 by fluted disc 31, and along the axis direction displacement and make its external diameter with the flower hub 10 inwall 11 smooth agreeing with.

As can be seen from Figure 5, axostylus axostyle 12 default combined holes 17 resist member 32 with stack-mounted, the two retains the scope of spacing 28 just to be positioned at sleeve 22 and axostylus axostyle 12, utilize the aperture that elastic force ejected of spring 33 for ball 34 because of screwed pipe 35, be to form a hole of bead 37 less than these ball 34 diameters, so ball 34 only can exposed portions serve pearl body and can bullet from deviating from, and the pearl body that these expose is that point contacts with these sleeve 22 internal diameters, friction coefficient is a friction of rolling, can have following advantage than the above-mentioned thing of commonly seeing in use:

1. sleeve 22 utilizes the clipping power that the contact of 34 on ball is bestowed, and is enough to support its directional tagging and can rotate in the same way along with screwing togather bar 24, in the moment of transmitting kinetic energy, but makes this sleeve 22 immediate response precessions or revolve the deactuate work.

2. jumping or other approach when carrying out, the stress that is transmitted by sleeve 22 will be passed spring 33 back by ball 34 and be absorbed, no longer the possibility that can't use in fracture.

3. the friction of rolling of ball 34 and sleeve 22 can be reduced to loss minimum during the kinetic energy transmission.

4. be the interlocking step of convenient screwed pipe 35 and combined hole 17, the outer rim that is positioned at 37 ends, the hole of bead can form polygon shape screw lock end 36.

5. the design of ring plate 21, the stroke that moves back except reduction sleeve 22 precessions or revolve is with the timeliness of quickening its flower hub 10 inwalls 11 and agreeing with, and the pearl dish 18 that more utilizes lamellar body clipping steel ball to constitute reduces friction drag.

In sum, the utility model utilizes bullet to inserting the resistance element of sleeve inner, diametric elasticity clipping power is provided, can be with the restriction sleeve along with screwing togather bar for rotating start in the same way, and can quicken the precession that agrees with, separates or revolve to regress suddenly, in fact the arrangement of clutch of existing colored hub is made perfect improvement.

Claims

1. improved bicycle hub arrangement of clutch, this arrangement of clutch are worn group on flower hub in-to-in axostylus axostyle, and comprising: sleeve has engaging hole in the tube; Screw togather bar, be stepped body, its shaft core position has perforation, and the outer rim of the less end of diameter is able to odd number or plural thread and forms and this engaging hole bonded assembly spiro union portion, and the bigger end of diameter is a head, in order to the flywheel of ining succession; It is characterized in that: retained a spacing between this axostylus axostyle and the sleeve, corresponding quill shaft is provided with one and resists member in it in the scope of displacement movement.

2. improved bicycle hub arrangement of clutch according to claim 1, it is characterized in that, this resistance member comprises a spring, it penetrates in the combined hole that runs through axostylus axostyle, its two end opening partly is provided with ball, and by hollow screwed pipe locking, wherein, the caliber of at least one end, exposes part pearl body and is with sleeve inner to contact to form the hole of bead less than this ball diameter.

3. improved bicycle hub arrangement of clutch according to claim 2 is characterized in that, the outer rim of the contiguous hole of bead of this screwed pipe one end forms the screw lock end of polygon shape.

4. improved bicycle hub arrangement of clutch according to claim 1 is characterized in that, this resistance member is the reed that its bending two ends becomes to have the elasticity clamping end, and each clamping end system and sleeve inner and axostylus axostyle outside are and contact.

5. according to claim 1 or 4 described improved bicycle hub arrangement of clutch, it is characterized in that the axostylus axostyle of flower hub inwall one side is provided with ring plate.

6. improved bicycle hub arrangement of clutch according to claim 1 and 2 is characterized in that, the axostylus axostyle of flower hub inwall one side is provided with by two ring plates counts the pearl dish that steel ball constitutes together with a lamellar body clipping.

7. improved bicycle hub arrangement of clutch according to claim 1 and 2 is characterized in that this screws togather club head can one-body moldedly fluted disc, to replace flywheel.