CN102476558B

CN102476558B - Bicycle rim

Info

Publication number: CN102476558B
Application number: CN 201010563455
Authority: CN
Inventors: 蔡文丰
Original assignee: TIANXIN INDUSTRY Co Ltd
Current assignee: TIANXIN INDUSTRY Co Ltd
Priority date: 2010-11-29
Filing date: 2010-11-29
Publication date: 2013-10-30
Anticipated expiration: 2030-11-29
Also published as: CN102476558A

Abstract

The invention provides a bicycle rim, which comprises an outer circumference and an inner circumference, wherein the outer circumference surrounds a rotating shaft; a fixed outer diameter exists between the outer circumference and the rotating shaft; the inner circumference is provided with a first position; and the first position is provided with unequal inner diameters. Additional torsional force is generated under the gravity of the first position for assisting a rider in completing a starting process. In a riding process, a moment of inertia is generated at the first position, and can be transmitted to the rider through a vehicle body.

Description

Bicycle rim

Technical field

The present invention relates to a kind of structure of bicycle rim, refer in particular to a kind of not bicycle rim of uniform internal diameter that has.

Background technology

The bicycle development so far, a kind of quite general vehicle have been become, because if bicycle main relies on manpower to drive, drive in the process is to accelerate, slow down, turn to or car body balance is all directly controlled by the rider, bicycle all directly passes to the rider for the situation on road surface and the service condition of bodywork parts in driving process, even if therefore imperceptible variation, what the rider can both be deep experiences.Therefore each manufacturer is devoted to improve for each part of bicycle invariably, makes the bicycle that drives that the rider can be lighter, more comfortable.

In the component part of bicycle, wheel rim is being played the part of the key player of support tire, with reference to U.S. Patent number the 5th, 975, No. 645 " Carbon Bodied Bicycle Rim " Patent Cases, existing wheel rim has a carbon fiber frame and an aluminium frame that is sheathed on the carbon fiber frame.Tire sleeve is located at this carbon fiber aluminium frame and is subject to the support of wheel rim.Wherein, the carbon fiber frame has a fixed inner diameter and a fixed outer diameter, and the aluminium frame also has a fixed inner diameter and a fixed outer diameter.

The wheel rim of fixed inner diameter and external diameter can't produce extra rotor inertia when rotating, therefore, when extraordinary circumstances, for example in the process of static wish starting, can't provide extra powered assistance rider to accelerate.

Because the bicycle rim of background technology has the disappearance of the power that can't provide extra, therefore, the inventor is the design of doing one's utmost to seek a kind of bicycle rim, and hope can be satisfied rider's demand.

Summary of the invention

The technical matters that institute of the present invention wish solves is the above-mentioned disappearance that exists for prior art, and a kind of bicycle rim that extra power can be provided is provided.

For achieving the above object, the technical solution used in the present invention is:

A kind of bicycle rim is characterized in that, includes:

A body, this body is round a S. A. and have outer peripheral edges and an inner peripheral;

Have an external diameter between these outer peripheral edges and this S. A., this external diameter is fixed value;

This inner peripheral has first position, and this first position has not uniform internal diameter.

Wherein: this first position has a first end, second end and minor diameter part, this path section is positioned between this first position first end and this first position the second end, has first internal diameter between the first end at this first position and this S. A., has second internal diameter between the minor diameter part at this first position and this S. A., this first internal diameter is greater than this second internal diameter, and this first position presents decrescence variation by this first end to the internal diameter of this minor diameter part.

Wherein: have the 3rd internal diameter between second end at this first position and this S. A., this second internal diameter is less than the 3rd internal diameter, and this first position presents cumulative variation by this second end to the internal diameter of this minor diameter part.

Wherein: this inner peripheral has second position, and this second position has the 4th internal diameter, and the 4th internal diameter is fixed value, and the 4th internal diameter equals this first internal diameter.

Wherein: have a distribution angle between the first end at this first position and the second end and this S. A., this distribution angle is greater than 90 degree.

Wherein: have a location angle between the first end at this first position and minor diameter part and this S. A., wherein, this location angle satisfies following relationship:

25% distribution angle＜location angle＜75% distribution angle.

Wherein: have first width between the section of the minimum footpath in these outer peripheral edges and this first position, have second width between these outer peripheral edges and this second position, wherein, this first width and this second width and this external diameter satisfy following relationship:

125% the second width＜first width＜external diameters.

Wherein: this bicycle rim is the carbon fiber material.

Compared with prior art, the beneficial effect that has of the present invention is:

1. this first position assists the rider to finish starting-up process because gravity effect own produces an extra torsion.

2. in driving process, this first position can produce a rotor inertia, and this rotor inertia can pass to the rider by vehicle body.

3. the whole surface area at the first position is greater than the second position, so manufacturer can not be subject to the restriction of bicycle rim face area when design sticks in the paster in the wheel frame outside or totem.

Description of drawings

Fig. 1 is the stereo appearance figure of bicycle rim of the present invention;

Fig. 2 is the lateral plan of bicycle rim of the present invention;

Fig. 3 is the cutaway view that the present invention is got by the 3-3 hatching of Fig. 1;

Fig. 4 is bicycle rim collocation spoke of the present invention and the scheme drawing of spending hub;

Fig. 5 is bicycle rim collocation spoke of the present invention and another scheme drawing of spending hub;

Fig. 6 is the scheme drawing that bicycle rim of the present invention is mounted on bicycle.

Description of reference numerals: 100-bicycle rim; The 1-body; The 10-outer peripheral edges; The 20-inner peripheral; 21-the first position; The 211-first end; 212-the second end; The minor diameter part of 213-; 22-the second position; The 221-first end; 222-the second end; The L-S. A.; The R-external diameter; R1-the first internal diameter; R2-the second internal diameter; R3-the 3rd internal diameter; R4-the 4th internal diameter; A-distribution angle; B-locates angle; W1-the first width; W2-the second width.

The specific embodiment

Relevant the technology used in the present invention, means and effect thereof, hereby lift a preferred embodiment and cooperate graphic detailed description as after, this is not subjected to the restriction of this kind structure only for explanation in patent application.

With reference to Fig. 1 and Fig. 2, be stereo appearance figure and the lateral plan of bicycle rim 100 of the present invention.This bicycle rim 100 is for the carbon fiber material and comprise a body 1, and this body 1 is round a S. A. L and have outer peripheral edges 10 and an inner peripheral 20.Has a fixing external diameter R between these outer peripheral edges 10 and this S. A. L.This inner peripheral 20 is for uniform internal diameter not and have first position 21 and second position 22.This first position 21 has a first end 211 and second end 212, and this second position 22 has a first end 221 and second end 222, and these the second position 22 first ends 221 are connected in the first end 211 at this first position 21; These the second position 22 second ends 222 are connected in second end 212 at this first position 21.

Have more minor diameter part 213 between these the first position 21 first ends 211 and this first position 21 second ends 212.Have first an internal diameter r1 between the first end 211 at the first position 21 and the S. A. L, this first internal diameter r1 also is the first end 221 at the second position 22 and the distance between the S. A. L; Has second an internal diameter r2 between the minor diameter part 213 at the first position 21 and the S. A. L; Have the 3rd an internal diameter r3 between second end 212 at the first position 21 and the S. A. L, the 3rd internal diameter r3 also is second end 222 at the second position 22 and the distance between the S. A. L.This first internal diameter r1 is greater than this second internal diameter r2, and this first position 21 presents decrescence variation by first end 211 to the internal diameter of minor diameter part 213; This second internal diameter r2 is less than the 3rd internal diameter r3, and this first position 21 presents decrescence variation by the second end 212 to the internal diameter of minor diameter part 213.The first position 21 presents a camber line aspect, and this camber line is slightly less than the formed circumference by the first internal diameter r1.In present embodiment, this first internal diameter r1 equals the 3rd internal diameter r3, and this second position 22 has the 4th a fixing internal diameter r4, and the 4th internal diameter r4 equals this first internal diameter r1 and the 3rd internal diameter r3.The definition of above-mentioned internal diameter and external diameter only limits to the profile of bicycle rim 100 outward appearances, the variation that the stiffener of not containing the installing through hole used of spoke or being mounted on through hole produces.

Have a distribution included angle A between the first end 211 at the first position 21 and the second end 212 and the S. A. L, wherein, this distribution included angle A satisfies following relationship:

90 degree＜A＜300 degree

At present embodiment, this distribution included angle A is 180 degree, and also, this first position 21 is divided respectively this inner peripheral 20 equally with this second position 22.Have a location included angle B between the first end 211 at the first position 21 and minor diameter part 213 and the S. A. L, wherein, this location included angle B satisfies following relationship:

25％A＜B＜75％A

In present embodiment, this location included angle B is half of distribution included angle A, and also, this minor diameter part 213 is positioned at the centre at this first position 21 and has identical angle with these the first position 21 first ends 211 and this first position 21 second ends 212.

Simultaneously with reference to Fig. 3, have first width W 1 between these outer peripheral edges 10 and the first position 21 minor diameter parts 213, this first width W 1 is the difference of external diameter R and the second internal diameter r2, when the length of r2 is 0, this first width W 1 has maxim, and namely this first width W 1 equals this external diameter R; Have second width W 2 between these outer peripheral edges 10 and the second position 22, this second width W 2 is the difference of external diameter R and the 4th internal diameter r4.Wherein, this first width W 1 satisfies following relationship with this second width W 2 with external diameter R:

125％W2＜W1＜R

Because this first position 21 all presents decrescence variation by first end 211 to minor diameter part 213 and by the second end 212 to the internal diameter of minor diameter part 213, therefore this first position 21 all presents cumulative variation by first end 211 to minor diameter part 213 and by the second end 212 to the width of minor diameter part 213, make the whole surface area at the first position 21 greater than the second position 22, so manufacturer when sticking in the paster in the wheel frame outside or totem, can not be subject to the restriction of bicycle rim 100 face areies in design.

Simultaneously with reference to Fig. 4 to Fig. 6, this bicycle rim 100 can arrange in pairs or groups spoke and flower hub and be applied to various bicycle, because the first position 21 forms a camber line that is slightly less than circumference, whole bicycle rim 100 inner peripherals 20 do not produce acute angle, therefore can avoid the stress concentration phenomenon, in addition, the weight at the first position 21 is greater than the second position 22, therefore work as rider's wish and transfer to the starting-up process of forward travel state from halted state, this first position 21 assists the rider to finish starting-up process because gravity effect own produces an extra torsion.In addition, in driving process, the first position 21 can produce a rotor inertia, and this rotor inertia can pass to the rider by vehicle body.

Can summarize the present invention with regard to the above and have following advantage:

1. bicycle rim of the present invention, this first position assists the rider to finish starting-up process because gravity effect own produces an extra torsion.

2. bicycle rim of the present invention, in driving process, this first position can produce a rotor inertia, and this rotor inertia can pass to the rider by vehicle body, increases rider's the enjoyment that drives.

3 bicycle rims of the present invention provide a kind of fitfull face area, represent diverse moulding, and manufacturer can not be subject to the restriction of face area when design sticks in the paster in the wheel frame outside or totem, thereby can produce more abundant design.

More than explanation is just illustrative for the purpose of the present invention; and nonrestrictive, those of ordinary skills understand, in the situation that does not break away from the spirit and scope that claim limits; can make many modifications, variation or equivalence, but all will fall within protection scope of the present invention.

Claims

1. a bicycle rim is characterized in that, includes:

The body of a ring-type, this body is round a S. A. rotation and have outer peripheral edges and the inner peripheral between this S. A. and this outer peripheral edges centered by this S. A.;

This inner peripheral has the first position of an arc, and this First distance of positions is uniform internal diameter not from this S. A.;

This first position has a first end, second end and minor diameter part, this path section is positioned between this first position first end and this first position the second end, has first internal diameter between the first end at this first position and this S. A., has second internal diameter between the minor diameter part at this first position and this S. A., this first internal diameter is greater than this second internal diameter, and this first position presents decrescence variation by this first end to the internal diameter of this minor diameter part.

2. bicycle rim according to claim 1, it is characterized in that: have the 3rd internal diameter between second end at this first position and this S. A., this second internal diameter is less than the 3rd internal diameter, and this first position presents decrescence variation by this second end to the internal diameter of this minor diameter part.

3. bicycle rim according to claim 1, it is characterized in that: this inner peripheral is to having second position in the First position, and this second position has the 4th internal diameter, and the 4th internal diameter is fixed value, and the 4th internal diameter equals this first internal diameter.

4. bicycle rim according to claim 1 is characterized in that: have a distribution angle between the first end at this first position and the second end and this S. A., this distribution angle is greater than 90 degree.

5. bicycle rim according to claim 4 is characterized in that: have a location angle between the first end at this first position and minor diameter part and this S. A., wherein, this location angle satisfies following relationship:

25% distribution angle＜location angle＜75% distribution angle.

6. bicycle rim according to claim 3, it is characterized in that: have first width between the section of the minimum footpath in these outer peripheral edges and this first position, has second width between these outer peripheral edges and this second position, wherein, this first width and this second width and this external diameter satisfy following relationship:

125% the second width＜first width＜external diameters.