CN2393806Y

CN2393806Y - Invisible rotating device for bicycle handlebar

Info

Publication number: CN2393806Y
Application number: CN99243490U
Authority: CN
Inventors: 吴钦昌
Original assignee: JUNJIE INDUSTRY Co Ltd
Current assignee: JUNJIE INDUSTRY Co Ltd
Priority date: 1999-10-08
Filing date: 1999-10-08
Publication date: 2000-08-30
Anticipated expiration: 2009-10-08

Abstract

The utility model relates to an invisible rotary device for a bicycle handlebar. A plug seat is inserted into a front pipe of a bicycle frame, and the center of the plug seat is used for a front fork to penetrate and insert; a lower ball bowl group is padded between the front fork and the plug seat; the top end of the front pipe of the bicycle frame is provided with a handlebar vertical pipe which is linked with the front fork, another upper ball bowl group is also padded between the top end of the front pipe and the vertical pipe of the handlebar, and a positioning seat is sheathed in the front pipe. The utility model mainly overcome the disadvantage that when a rotary device for a traditional bicycle handlebar is mainly arranged outside a bicycle pipe, the beautiful appearance and the rotary smooth degree can be easily influenced; the rotary device of the utility model is contained in the front pipe of the bicycle frame in order to achieve the purpose that a front wheel can more smoothly rotate in 360 DEG under the condition that the entire appearance of a bicycle is not damaged.

Description

Concealed bicycle handle slewing arrangement

The utility model relates to a kind of bicycle handle slewing arrangement, refers to that especially a kind of more being applicable to is installed in the stunt bicycle, is hidden in the concealed bicycle handle slewing arrangement of bicycle tube in-to-in.

Existing a kind of " stunt bicycle handle slewing arrangement ", it mainly is to be fixed with a base before vehicle frame on the pipe, and on base, be slidingly equipped with a sliding sleeve, and being embedded with one on the sliding sleeve can counterrotating rotating disc, be fixed with dish in addition in the bicycle branch pipe appropriate position, and make rotating disc can with last dish slide relative, brake cable is the separation type brake cable with upper and lower brake cable, wherein go up brake cable run through the dish and be fixed on the sliding sleeve, following brake cable then is to pass base to be fixed on the rotating disc.

According to above design, can relatively rotating by rotating disc and sliding sleeve, sliding sleeve is not rotated with base, can allow the user when the performance of operation bicycle, the rotation of handle and front-wheel can surpassed 360 when spending, still can not cause the knotting of brake cable to tangle, reach more convenient, the purpose smoothly of bicycle performance.

But there is following problem in above-mentioned slewing arrangement:

1, because the slewing arrangement of above-mentioned patent, be sheathed being exposed to before the vehicle frame on the pipe, cause on the bicycle overall appearance too loftyly, destroyed the bicycle overall appearance.

2, from the above,,, be easy to influence slewing arrangement fluency when rotated, so the exposed bicycle slewing arrangement of this tradition has the necessity that is improved in fact because of being exposed to the sun and rain for a long time and dust because slewing arrangement is to be exposed to outside the preceding pipe of vehicle frame.

The purpose of this utility model is: provide a kind of preceding pipe of cycle frame that directly is installed in inner, to avoid influenced because of external factor the concealed bicycle handle slewing arrangement of smooth rotation degree.

Another purpose of the present utility model is: the concealed bicycle handle slewing arrangement that can not destroy the original overall aesthetic of bicycle after a kind of install is provided.

The technical solution of the utility model is a kind of concealed bicycle handle slewing arrangement, wherein, an obturating plug is set in the pipe bottom before the vehicle frame of bicycle, the central authorities of this obturating plug can wear embedding for front fork and be pivoted, pad is established pearl bowl group between front fork and obturating plug, before this vehicle frame the top of pipe then spiral shell establish one with the handlebar vertical tube of front fork interlock (with moving), and before vehicle frame, manage to fill up again between top and handlebar vertical tube and establish pearl bowl group on, the then sheathed positioning seat in pipe inside before this vehicle frame, the buckle one rotation collar is nested on this positioning seat, and at the opposite side of positioning seat with the rotation collar, each five equilibrium sets firmly several brake cable, and each brake cable passes pearl bowl group respectively and obturating plug forms brake with the control bicycle rear.

Concealed bicycle handle slewing arrangement as previously discussed, wherein, this front fork is stretched in pipe inside before vehicle frame and is established a front fork pivot, and this front fork pivot and handlebar vertical tube form and be connected, and this positioning seat then can rotate freely with a central axis hole and be sheathed on the front fork pivot.

Concealed bicycle handle slewing arrangement as previously discussed, wherein, each brake cable that the spinning collar stretches out is passed pearl bowl group, each brake cable that positioning seat stretches out is then passed obturating plug, and, then respectively set the brake cable sleeve pipe that can wear for upper and lower brake cable at the outer face of last pearl bowl group and obturating plug and with respect to the position of each brake cable.

Concealed bicycle handle slewing arrangement as previously discussed, wherein, this positioning seat is axial pipe before vehicle frame, protrudes out a locating flange that can supply the rotary sleeve ring set to establish, and this locating flange is then detained in the outside that is positioned at the rotary sleeve ring and established a clasp with rotary sleeve ring formation buckle.

Concealed bicycle handle slewing arrangement as previously discussed, wherein, positioning seat and rotary sleeve interannular pad are provided with a wear-resistant gasket.

Characteristics of the present utility model promptly are positioning seat and rotate and manage inside before the collar all is located at vehicle frame, make bicycle keep original overall aesthetic, and make the rotation collar and positioning seat keep the smooth rotation state of the best.Bicycle handle and front-wheel are being surpassed under the 360 degree rotations, and brake cable still can not tangled knotting, and is to be hidden in bicycle tube inside.

Further specify specific structural features of the present utility model and purpose below in conjunction with accompanying drawing.

Brief Description Of Drawings:

Fig. 1: the schematic appearance that is the utility model preferred embodiment.

Fig. 2: the perspective exploded view that is the utility model preferred embodiment.

Fig. 3: be the utility model single-piece longitudinal profile scheme drawing.

At first please cooperate referring to Fig. 1,2 and Fig. 3 shown in, wherein the utility model is that be in vehicle frame 30 the place aheads be provided with a vehicle frame before identical with Regular Bicycle manages 31 (as Fig. 1, shown in Fig. 2), the bottom of pipe 31 is cover plug one obturating plugs 20 before this vehicle frame, the central authorities of this obturating plug 20 are provided with a pivot hole 200 and supply the front fork pivot 320 of front fork 32 to be pivoted, 20 of this front fork pivot 320 and obturating plugs, then pad is established one and can be embedded at pearl bowl group 22 under 200 in-to-ins of obturating plug 20 pivot holes, so that front fork 32 freely rotates below can managing 31 before vehicle frame, the front fork pivot 320 of this front fork 32 then is upward through the trepanning 310 of the preceding pipe 31 of vehicle frame, and pipe 31 top and a handlebar beam tube 33 spiral shell bundles before the vehicle frame are fixed (as Fig. 1, shown in Fig. 3), between the top of pipe 31, then pad is established a last pearl bowl group 21 that handlebar vertical tube 33 drive front fork pivots 320 are rotated together again before this handlebar vertical tube 33 and vehicle frame.

And this front fork pivot 320 is positioned at trepanning 310 inside of the preceding pipe 31 of vehicle frame, then can a sheathed positioning seat 10, this positioning seat 10 is to be sheathed on the front fork pivot 210 with axis hole 110 to rotate freely, and positioning seat 10 is positioned at the edge of axis hole 110, the then convex locating flange 11 cylindraceous that stretches out, make this locating flange 11 can a sheathed wear-resistant gasket 12, a sheathed again rotation collar 13 above locating flange 11 is positioned at wear-resistant gasket 12, this rotation collar 13 is snapped on the locating flange 11 by a clasp 14, so that unlikely getting loose, and be arranged with several caulking grooves 100 at the opposite side five equilibrium of positioning seat 10 and the rotation collar 13,130, make each caulking groove 100,130 can set for brake the end of a thread 150, and make each brake cable 15 reciprocal the pulling and supporting of the stretched formation of opposite side of positioning seat 10 with the rotation collar 13, make by the rotation collar 13 each stretched brake cable 15 and pass pearl bowl group 21, positioning seat 10 each stretched brake cable 15 are then passed the embedding hole, location 200 of obturating plug 20, and make on pearl bowl group 21 and the obturating plug 20, the lower surface is with respect to the position of brake cable 15, then form respectively and can keep supplying, the embedding hole, location 210 that following brake cable sleeve pipe 16 is set, 200 (as shown in Figure 3), make each brake cable 15 of passing pearl bowl group 21 and obturating plug 20 with this, be arranged in respectively in the relative brake cable sleeve pipe 16, make the pearl bowl organize 21 extended brake cable 15 and be connected to brake crank, and, then be connected on the rear wheel brake device of bicycle from 20 extended brake cable 15 of obturating plug by its control.

From Fig. 1,2 and Fig. 3 in also can see, when the user desires to carry out braking action, can pull brake crank, and affect each brake cable 15 of pearl bowl group 21 upwards to swing, and the brake cable 15 pulling rotation collars 13 are upwards risen, and because the rotation collar 13 of the present utility model is to utilize clasp 14 to snap onto on the locating flange 11 of positioning seat 10, so when the rotation collar 13 is pulled upwardly, also can together spur positioning seat 10 to top offset, so just can further affect inlay card each brake cable 15 in positioning seat 10 bottom surfaces, make each brake cable 15 spur the brake start of trailing wheel again, reach the effect of the utility model braking action with this.

Moreover, when user's desire forms the rotations performance that surpasses 360 degree with bicycle handle bar and front fork 32 wheels, then can directly handlebar be formed and rotate, each brake cable sleeve pipe 16 that handlebar vertical tube 33 can drive front fork pivot 320 and go up pearl bowl group 21 this moment rotates together, each brake cable 15 is managed in 31 before vehicle frame when rotating, then can on positioning seat 10, form idle running alone by the driven rotary collar 13, therefore can make handle and front fork 32 do can not cause being entangled with of brake cable 15 greater than the rotation stunt of 360 degree.

In addition, what is worth mentioning, wherein the utility model is all hidden the positioning seat 10 and the rotation collar 13 and is embedded at pipe 31 in-to-ins design before the vehicle frame, except making bicycle after installation, can not destroy the original overall aesthetic of bicycle, also actv. covers rainwater and dust whereby, prevent that it from immersing slewing arrangement, reach and make front-wheel have the effect of best smooth rotation degree.

Claims

1. concealed bicycle handle slewing arrangement, it is characterized in that: an obturating plug is set in the pipe bottom before the vehicle frame of bicycle, the central authorities of this obturating plug can wear embedding for front fork and be pivoted, pad is established pearl bowl group between front fork and obturating plug, before this vehicle frame the top of pipe then spiral shell establish one with the handlebar vertical tube of front fork interlock, and before vehicle frame, manage to fill up again between top and handlebar vertical tube and establish pearl bowl group on, the then sheathed positioning seat in pipe inside before this vehicle frame, the buckle one rotation collar is nested on this positioning seat, and at the opposite side of positioning seat with the rotation collar, each five equilibrium sets firmly several brake cable, and each brake cable is passed pearl bowl group and obturating plug respectively.

2. concealed bicycle handle slewing arrangement according to claim 1, it is characterized in that: this front fork is stretched in pipe inside before vehicle frame and is established a front fork pivot, this front fork pivot and handlebar vertical tube form and are connected, and this positioning seat then can rotate freely with a central axis hole and be sheathed on the front fork pivot.

3. concealed bicycle handle slewing arrangement according to claim 1, it is characterized in that: each brake cable that the spinning collar stretches out is passed pearl bowl group, each brake cable that positioning seat stretches out is then passed obturating plug, and, then respectively set the brake cable sleeve pipe that can wear for upper and lower brake cable at the outer face of last pearl bowl group and obturating plug and with respect to the position of each brake cable.

4. concealed bicycle handle slewing arrangement according to claim 1, it is characterized in that: this positioning seat is axial pipe before vehicle frame, protrude out a locating flange that can supply the rotary sleeve ring set to establish, this locating flange is then detained in the outside that is positioned at the rotary sleeve ring and is established a clasp with rotary sleeve ring formation buckle.

5. according to claim 1 or 4 described concealed bicycle handle slewing arrangements, it is characterized in that: positioning seat and rotary sleeve interannular pad are provided with a wear-resistant gasket.