CN2205784Y

CN2205784Y - Lever for bicycle tyre

Info

Publication number: CN2205784Y
Application number: CN 94222497
Authority: CN
Inventors: 小野泽昭志
Original assignee: SERDECHEKE CO
Current assignee: SERDECHEKE CO
Priority date: 1994-09-29
Filing date: 1994-09-29
Publication date: 1995-08-23
Anticipated expiration: 2004-09-29

Abstract

The utility model relates to a prizing lever for a bicycle tyre, which is provided with a long lever body provided with a first end and a second end. The first end of the long lever body is essentially in a plane shape, and is provided with a widened face part and a curved lip part; a supporting arm is arranged on the second end of the long lever body, and the trend of the supporting arm essentially keeps perpendicular to the long lever body and forms an angle upwards from the point of the long lever body; the cross section of the supporting arm is in a hexagon shape; the first end of the long lever body is arranged between the tyre of a bicycle and the rim; the long lever body is turned towards the direction of the spoke of the bicycle wheel; the tyre of the bicycle can be separated from the rim; the prizing lever can be fixed when any part of the supporting arm abuts the spoke of the bicycle wheel.

Description

Lever for bicycle tyre

The utility model relates to a kind of bike tyre ripping bar, and it comprises a stock body with first end and second end; First end of stock body is placed between the tire and wheel rim of bicycle, again this stock is carried out switching towards the direction of vehicle wheel spoke, just the tire of bicycle can be separated with wheel rim, and take up an official post a part when propping up vehicle wheel spoke with the support arm of second end, ripping bar can be fixed, really have good practical effect.

Using known bike tyre ripping bar that tire is prized from wheel rim, is a kind of skill that the professional person all knows, as shown in Figure 1, commonly uses bike tyre ripping bar 2 and is made of a stock body 4 with first flat end 6 and second flat end 8; This second flat end 8 keeps an angle and is provided with a quite little breach 10 with stock body 4, and the whole width of almost cross-section second flat end 8 of this breach is strengthened flank 12 so be provided with one at second flat end in abutting connection with indentation, there.

Commonly use ripping bar when the operation that prizes tire, be that first first flat end with ripping bar places between tire and the wheel rim, and then carry out switching towards the direction of vehicle wheel spoke with the stock body, and allow spoke snap in the breach of second flat end, and second flat end is fixed on the spoke of wheel.

Yet, commonly use the bike tyre ripping bar and have some shortcomings, for example, when by force spoke being snapped in the shallow narrow contained breach of ripping bar second flat end, usually can be, curve or break with the spoke scratch; In addition, when using excessive strength, also may make a mess of tire or wheel rim.At last, when desiring to snap in vehicle wheel spoke in the contained breach of ripping bar second flat end, owing to when the stock body carries out the switching campaign, can produce great moment of torsion and resistance, thereby be difficult to fix, and spoke is also often deviate from from the shallow narrow breach of ripping bar.

In view of this, the purpose of this utility model is to provide a kind of bike tyre ripping bar, it can prop up spoke in many positions on the body of rod, in the time of on ripping bar is fixed in spoke, moment of torsion that unlikely generation is excessive and resistance, thereby can avoid, and be not difficult ripping bar is fixed on the spoke spoke scratch, the situation that curves or break.

For achieving the above object, provided by the utility modelly can be provided with a stock body with first end and second end from the bike tyre ripping bar that bicycle rim prizes tire, wherein first end becomes plane in fact; On stock body second end support arm is arranged, the trend of this support arm is vertical with the stock body in fact and vertical and upwards form an angle from the stock body from the stock body.First end of stock body is placed between bike tyre and the wheel rim, again the stock body is reversed towards the direction of vehicle wheel spoke, and the spoke that arbitrary position of support arm is propped up wheel so can separate bike tyre so that ripping bar is fixed with wheel rim.

This stock body is the first plane end and preferably is provided with a curved lip and and widens face.

The bench section of the support arm of this bike tyre ripping bar is preferably hexagon, so that make it have the function of spanner.Yet the end of this support arm in fact also can be the plane, has the function of corkscrew so that can cooperate with screw terminal.

For enabling that structure of the present utility model and effect are had preferable understanding, after existing conjunction with figs. is described in more detail in.

Fig. 1 is a transparent view of commonly using the bike tyre ripping bar;

Fig. 2 is the transparent view of first embodiment of the present utility model;

Fig. 3 is an end elevation of the present utility model;

Fig. 4 is the transparent view of second embodiment of the present utility model;

Fig. 5 is the transparent view of the 3rd embodiment of the present utility model;

Fig. 6 is that the utility model is applied in the transparent view on the bicycle quick.

See also first embodiment of the present utility model shown in Figure 2, this bike tyre ripping bar 14 comprises a stock body 16 with first end 18 and second end 20, the shape of this first end 18 is the plane preferably, and have and widen facial 22 and one curved lip 24, so that can this first end 18 be placed between the flat and wheel rim of bicycle easily according to the aftermentioned mode.

This second end 20 is the support arms that are attached on the stock body 16, its trend with its attached stock body 16 keep vertical in fact; Yet this second end 20 may not keep the angles of 90 degree with this part of stock body 16, and can and its formation spend to the angle between 110 degree about 70; The length ratio of the stock body 16 and second end 20 is preferably in 6:1 between the 7:1, but, the length of the length of stock body 16, second end 20 and their length ratio can be any numerical value, as long as it can bring into play suitable leverage and bike tyre is prized from wheel, and second end 20 is held get final product on the spoke of cycle wheel; Be provided with a curve 26 at stock body 16 in abutting connection with the place of second end 20, cause the part that has second end 20 of stock body 16 and have between the part of first end 18 to form the approximately angles of from 110 to 130 degree; As shown in Figure 3, the direction of second end 20 and stock body 16 preferably is set as and can allows the longitudinal axis of second end 20 and a horizontal surface h by its curve 27 form an angle [alpha].This horizontal surface h and stock body 16 have that part of longitudinal axis keeping parallelism of first end 18, and facial 22 in the same plane with widening of first end 18, and angle [alpha] is preferably spent between 20 degree about 5 greatly.

In first embodiment shown in Figure 2, the bench section of this second end 20 is circular; But in second embodiment shown in Figure 4, the bench section of second end 20 is a hexagon then, makes this second end 20 have the function of being used as spanner.In addition, in the 3rd embodiment shown in Figure 5, second end 20 has one and becomes the plane in fact and the terminal part that can cooperate with screw terminal, causes this second end 20 to have the function of being used as corkscrew.Except aforementioned these did not exist together, other each side of second embodiment shown in Figure 4 and the 3rd embodiment shown in Figure 5 all first embodiment with shown in Figure 2 was identical.

Figure 6 shows that operational scenario of the present utility model.It is as follows to use ripping bar 14 that tire is prized the method for coming from wheel: first end 18 with ripping bar 14 places between the tire 28 and wheel rim 30 of wheel 36 earlier; Then allow stock body 16 towards spoke 32 switchings of wheel 36, make this stock body 16 performance leverages, so just the part of tire 28 can be separated with wheel rim 30; And then withstand spoke 32 with the arbitrary part on second end, 20 length, ripping bar 14 can be fixed on the wheel 36; And use this arbitrary part to prop up the freedom of spoke 32 with second end 20, just can be with ripping bar 14 suffered moment of torsion and the resistance degree that minimizes on being fixed in wheel 36 time, thereby can be with spoke 32 scratches, curve or break, tire 28 and/or wheel rim 30 can not made a mess of yet; Can be fixed to ripping bar 14 on the wheel 36 more easily simultaneously; At last, on wheel 36, install several ripping bars 14 in addition according to abovementioned steps again, so that prize tire 28 more.Generally speaking, use two or three bike tyre ripping bars at most, tire 28 can be prized.

Only in order to explanation the utility model, the various modifications that all persons skilled in the art were engaged in as not violating spirit of the present utility model, all belong to claim of the present utility model to previous embodiment.

Claims

1, a kind of bike tyre ripping bar, it comprises: a stock body, it has one and keeps angle of inclination bonded assembly first end with second end, this first end have one in oblique extension and become the face on plane in fact, this second end then has a longitudinal axis; It is characterized in that:

A support arm of being located on aforementioned stock body second end, this support arm has a longitudinal axis, the trend of this support arm is to form with second end of aforementioned stock body to be the first vertical angle in fact, simultaneously the longitudinal axis of this support arm be set as with a horizontal surface keep the acute angle angle and with the facial keeping parallelism of aforementioned first end, this horizontal surface then with the longitudinal axis keeping parallelism of aforementioned stock body second end.

2, bike tyre ripping bar as claimed in claim 1 is characterized in that: the bench section of this support arm is a hexagon.

3, bike tyre ripping bar as claimed in claim 1 is characterized in that: this support arm has and the stock body end far away of being separated by, and this end can be a plane that cooperates with screw terminal in fact.

4, bike tyre ripping bar as claimed in claim 1 is characterized in that: this first angle is between 70 to 110 degree.

5, bike tyre ripping bar as claimed in claim 1 is characterized in that: this acute angle angle is between 5 to 10 degree.

6, bike tyre ripping bar as claimed in claim 1 is characterized in that: this angle of inclination is between 110 to 130 degree.