CN2487645Y

CN2487645Y - Wedge device for handlebar end of bicycle

Info

Publication number: CN2487645Y
Application number: CN 01209871
Authority: CN
Inventors: 周丙火
Original assignee: YISHENG INTERNATIONAL CO Ltd
Current assignee: YISHENG INTERNATIONAL CO Ltd
Priority date: 2001-02-26
Filing date: 2001-02-26
Publication date: 2002-04-24
Anticipated expiration: 2011-02-26

Abstract

The utility model relates to a wedge device for handlebar end of bicycle (bar end plug, wedge), consisting of a wedge pipe, two wedges, a screw and a supporting block. By using the inclined planes on the wedge pipe corresponding to the inclined planes of the two wedges, the two wedges are respectively made to be capable of bearing the strength brought by the forward incline and the backward bending of a handlebar, avoiding that the wedge device for handlebar end of bicycle is torn apart and produces risk factors because of the incapability of bearing the bidirectional strength. In addition, the expanding displacement distance produced by the movement of the two wedges with the inclined plane each is twice the length of the prior wedge device for handlebar end of bicycle, which makes the wedge device for handlebar end of bicycle wider in suitable aperture range. Furthermore, the disadvantage that errors are easy to be produced when the previous wedge device for handlebar end of bicycle is adjusted is improved.

Description

The bicycle thill end wedge system

The utility model is about a kind of bicycle thill end wedge system (bar end plug, wedge), especially refer to utilize a wedge pipe to cooperate two voussoirs, screw and pushing block, blocking mutually, and can improve the phenomenon that bicycle handle causes the auxiliary handle pushing block to get loose because of the application of force that leans forward or swing back.

See also shown in Figure 1, be that existing bicycle thill end wedge system is mounted on the scheme drawing in the bicycle front tube 10, existing bicycle thill end wedge system, be 12 of a voussoir 13 and wedge pipes with symmetrical tangent inclined-plane paste mutually to, utilize a screw 14 rotations and drive pushing block 15 and upwards slip of voussoir 13, treat promptly to reach the adjusting locking function by wedge pipe 12 1 sides and the voussoir 13 1 sides tube wall of contact bicycle front tube 10 respectively, but after using after a while, find following disappearance:

1. wedge pipe and voussoir get loose easily: screw 14 rotation and drive this voussoir 13 and adjust relative to wedge pipe 12 and move, because voussoir 13 upwards slides, so area of contact on 13 minimizings of this voussoir and wedge pipe 12 corresponding inclined-planes, and the strength that handle 11 frequent transmission are leaned forward and swung back is on voussoir 13 and

wedge pipe

12,12 tool one inclined-planes of this voussoir 13 and wedge pipe, so can only bear unidirectional strength, for reciprocal strength, but can't bear, thus, the phenomenon that may cause voussoir and wedge pipe 12 to get loose or rupture.

2. the strength that can bear is less: because this voussoir 13 and wedge pipe 12 are less through adjusted area of contact, so its stress that can bear is less.

3. adjustable aperture spacing is less: because existing

voussoir

13 and 12 tool one inclined-planes of wedge pipe, so for the bigger preceding pipe 10 in aperture, 12 of identical voussoir 13 and wedge pipes can't be suitable for thereon, must use the voussoir 13 and the wedge pipe 12 of different size, so the applicability of identical voussoir 13 and wedge pipe 12 is more not extensive.

4. borrow the adjustment of screw drift angle, the error that is produced is bigger: because existing wedge pipe 12 is to utilize screw 16 drift angles to come relative voussoir 13 to do an adjustment of rising or descending, but only utilize screw 16 drift angle adjustment, be easy to generate the error of slip during adjustment.

In view of this, this case creator is through detailed think of funiculus, and the long-pending research of the structure of various voussoirs, the experience of exploitation be engaged in for many years, developed eventually a kind ofly be difficult for getting loose, can bear big stress, suitable pore diameter range is big and adjust the less bicycle thill end wedge system of time error and improve.

Main purpose of the present utility model is to provide a kind of bicycle thill end wedge system, and it utilizes the voussoir on two corresponding respectively wedge pipes, two inclined-planes to expand outwardly blocking, allow stress that handle transmitted can mean allocation in two voussoirs.

Another purpose of the present utility model is to provide a kind of bicycle thill end wedge system that utilizes two voussoirs to expand outwardly adjustment.

A purpose more of the present utility model is to provide a kind of bicycle thill end wedge system, and it utilizes a pushing block to promote two voussoirs and moves up, reduces existing bicycle thill end wedge system and utilize the adjustment of screw drift angle.

The purpose of this utility model can reach by following measure:

A kind of bicycle thill end wedge system mainly comprises:

One wedge pipe be the symmetrical inclined-plane of one end tool two, and central authorities is provided with a through hole;

Two voussoirs are independent blocks of a semicircle, and the one end is provided with sliding establish and to inclined-plane that should wedge pipe inclined-plane, and other end predetermined position is provided with an accommodation space, and are provided with a groove in the semi-round plane of voussoir;

One pushing block is that its central authorities are provided with a screw, and two ends are corresponding respectively is mounted in the accommodation space of this two voussoir;

One screw is one to wear this wedge pipe through-hole and spiral shell is located in the screw of this pushing block.

The utility model has following advantage compared to existing technology: allow stress that handle transmitted can mean allocation in two voussoirs, improve that bicycle thill end wedge system unbalance stress in the past causes fracture or the situation that gets loose produces; Utilize two voussoirs to expand outwardly adjustment, it can reach in the past existing wedge system can be suitable for two times of bore, and applicability is more extensive; Reduce existing bicycle thill end wedge system and utilize the adjustment of screw drift angle, and be easy to generate the error of slip.

In order to understand architectural feature of the present utility model and purpose, effect more, in this measure one preferred embodiment and cooperate graphic detailed description as the back:

[description of drawings]

Fig. 1 is the generalized section of existing bicycle thill end wedge system and preceding pipe jointing.

Fig. 2 is the exploded perspective scheme drawing of the utility model embodiment.

Fig. 3 is the generalized section of the utility model embodiment.

Fig. 4 is the generalized section of the utility model and preceding pipe jointing.

Fig. 5 is the section-drawing of the utility model in conjunction with handle and auxiliary handle.

[figure number partly]

Pipe 11 handles before 10

12 wedge pipes, 13 voussoirs

14 screws, 15 pushing blocks

16 screws

20 wedge pipes, 21 accommodation spaces

22 through holes, 23 inclined-planes

24 screws, 25 lead angles

26 pads

30 voussoirs, 31 inclined-planes

32 grooves, 33 storage tanks

40 pushing blocks, 41 screws

50 handles, 51 auxiliary handles

See also shown in Figure 2, it is the exploded perspective scheme drawing of the utility model embodiment, its main composition element comprises: a wedge pipe 20, two voussoirs 30 and pushing block 40, this wedge pipe 20 1 end tools one accommodation space 21 is ccontaining for screw 24 ends and pad 26, and be provided with a through hole 22 that supplies screw 24 to run through in this accommodation space 21, and the inclined-plane 31 on corresponding two voussoirs 30 of these wedge pipe 20 other end tools disymmetrical inclined-plane 23 difference, on two voussoirs, the 30 corresponding planimetric positions, be respectively equipped with one for the ccontaining groove 32 of screw 24, and in lower end predeterminable range place, be provided with a storage tank 33 in order to a pushing block 40 blockings wherein, this pushing block 40 is provided with the screw 41 that a corresponding screw 24 wears.

See also shown in Figure 3, it is the generalized section of the utility model embodiment, can know and understand assembled state of the present utility model, this screw 24 is to wear the through hole 22 of pad 26, wedge pipe 20 and the screw 41 of pushing block 40, and two voussoirs 30 are mounted on the corresponding pushing block 40, and in the groove 32 on two voussoirs 30 respectively to should screw 24.

See also shown in Figure 4, it is the generalized section of the utility model and preceding pipe jointing, can understand the operating state of the utility model bicycle thill end wedge system, when this screw 24 rotates, promptly driving this pushing block 40 upwards or down moves, utilize this pushing block 40 starts, make and then this pushing block 40 and moving of two voussoirs 30, when two voussoirs 30 move up expansion before its outside is close to during the internal face of pipe, this two voussoir 30 just possesses the blocking function, and when handle forward or backward during application of stress, two voussoirs 30 just can utilize two inclined-planes 31 on it, reach an average and function that resist mutually, increase the stress that it can bear.

On the other hand, the utility model can adapt to the preceding pipe of car body voluntarily of larger caliber, existing wedge pipe of tradition and voussoir only possess an inclined-plane, so when screw rotation drives voussoir upwards and expand outwardly when mobile, the mobile distance of voussoir institute is short than the utility model, because the utility model bicycle thill end wedge system possesses the inclined-plane of two corresponding voussoirs, so when screw rotation drives two voussoirs upwards and expand outwardly when mobile, it expands outwardly mobile distance is two times of single voussoir, so can general-duty bore scope bigger.

Moreover, see also shown in Figure 5, be that the utility model is in conjunction with the section-drawing of handle 50 with auxiliary handle 51, bicycle thill end wedge system of the present utility model also can be applied in conjunction with on handle 50 and the auxiliary handle 51, utilize its advantage that can bear biaxial stress, the intensity when promoting handle 50 and combining with auxiliary handle 51, for ask attractive in appearance and safe for the purpose of, the end week side of this wedge pipe 20 can be provided with a lead angle 25, to prevent incised wound.

But, utilize the unitary construction that is as above combined, can understand characteristic of the present utility model for increasing stress and the direction that this bicycle thill end wedge system can bear, and reduce the error that is produced when adjusting, mouth of pipe footpath is also relatively large before the car body that can cooperate, and utilizes a wedge pipe, two voussoirs to cooperate the simple structure of a screw and a pushing block etc. just can reach convenience in the use.

In sum, structure shown in the utility model embodiment, it utilizes the simple structure of a wedge pipe, two voussoirs, a screw and a pushing block etc., the front and back stress that allows the increase of bicycle thill end wedge system can bear, and the bore scope that the bicycle thill end wedge system can be suitable for is comparatively extensive, moreover during for bicycle thill end wedge system adjustment in the past, the shortcoming that is easy to generate error improves to some extent.

Claims

1. bicycle thill end wedge system is characterized in that: mainly comprise:

2. bicycle thill end wedge system according to claim 1 is characterized in that: install a pad between screw and wedge pipe.

3. bicycle thill end wedge system according to claim 1, it is characterized in that: it is a perforation that the storage tank of this voussoir is provided with.

4. bicycle thill end wedge system according to claim 1 is characterized in that: when wedge exposes near the end of screw terminal, wedge pipe periphery is provided with into a lead angle.