CN2623481Y

CN2623481Y - Bicycle rim with a convex mounting seat

Info

Publication number: CN2623481Y
Application number: CN 03202266
Authority: CN
Inventors: 陈朝颖
Original assignee: Alex Global Technology Inc
Current assignee: Alex Global Technology Inc
Priority date: 2003-01-30
Filing date: 2003-01-30
Publication date: 2004-07-07
Anticipated expiration: 2013-01-30

Abstract

A bicycle rim with a convex mounting seat is for arranging each positioning head of a plurality of spokes and comprises two side annular walls which are separated into left and right, and a mounting annular wall which is connected between the two side annular walls and can be positioned for the positioning head. The utility model is characterized in that the mounting annular wall comprises two oblique segments which are gradually down and inclined from outward to inward, two loops of hollow mounting raised seats which are respectively raised from the oblique segments to the radial outer end of the bicycle rim, and a plurality of mounting holes for arranging the positioning heads, each mounting raised seat is provided with a sustaining segment for the positioning head sustaining, and a support segment which is obliquely supported between the sustaining segment and the oblique segment.

Description

Has the bicycle rim that prominent seat is installed

(1) technical field

The utility model relates to a kind of bicycle rim, particularly relate to a kind of on the installation ring wall of installing for positioning head on the wheel rim, have for this positioning head against the bicycle rim of the prominent seat of installation.

(2) background technology

Bicycle rim is a kind of attachments of a bicycle that can install for tire and many spokes, and it designs roughly as shown in Figure 1 substantially, can install for a tire 11, and by many spokes 12 and a wheel shaft 13 combinations, each spoke 12 all has a positioning head 121.And this bicycle rim 1 comprises: two between left and right every side ring wall 14, be engaged on installation ring wall 15 between the radial inner end of both sides ring wall 14, and one ring be engaged on 14 of both sides ring walls and and tire 11 mutual group stand out a gas storage space around ring wall 16, on this installations ring wall 15, offer two rows and supply the mounting holes 151 of positioning head 121 installations.

Though bicycle rim 1 can be organized in design and found out gas storage space in the past, install for each spoke 12 simultaneously, but in design, the installation ring wall 15 of arc not only can't reduce windage effectively, also can't provide positioning head 121 advantages of good positioning effect, in addition, because spoke 2 can produce one application force that is pulled to wheel shaft 13 directions to ring wall 15 is installed after installation, and the structural strength of thickness was identical on the bicycle rim 1 in the past installation ring wall 15 itself is not good, therefore can't provide enough bearing forces, cause bicycle rim 1 to be easy to generate distortion.

(3) utility model content

The purpose of this utility model provides a kind of under the weight-saving principle, has the bicycle rim of better structural strength and locating effect.

Bicycle rim of the present utility model can be for each positioning head location of many spokes, and this bicycle rim comprises: two between left and right every the side ring wall, and one be engaged between the ring wall of both sides and can be for the installation ring wall of positioning head location; Be characterized in: this installation ring wall comprises: two by the low gradually bevelled in inboard, lateral tiltedly the section of company, two rings distinctly from this tiltedly the section of company install toward the outstanding hollow of the radial outer end of bicycle rim and dash forward, and several mounting holes of installing for positioning head, each install prominent seat all have one for positioning head against against section, and a diagonal brace at this against section and tiltedly connect the intersegmental section of supporting to arrive in.

The prominent seat of installation by the outstanding two ring hollows of one on the installation ring wall of bicycle rim can improve the structural strength of wheel rim under the weight-saving principle, allow positioning head firmly locate simultaneously.

(4) description of drawings

Be elaborated to the utlity model has the bicycle rim that prominent seat is installed below by most preferred embodiment and accompanying drawing, in the accompanying drawing:

Fig. 1 is a kind of running condition reference diagram of bicycle rim in the past.

Fig. 2 is not complete block diagram of first preferred embodiment of the utility model bicycle rim.

One section drawing of this first preferred embodiment of Fig. 3.

Fig. 4 is the section drawing of second preferred embodiment of the utility model bicycle rim.

(5) specific embodiment

Consult Fig. 2,3, bicycle rim of the present utility model also is to be the hollow ring round, and can install for each positioning head 21 of many spokes 2, above-mentioned positioning head 21 comprises: a columned portion 211 that passes, and the expansion section 212 of a diameter expansion, on expansion section 212, have one section adjacency and pass the annular conical surface 213 of portion 211, and one section and this pass portion 211 at interval and ring of enlarged-diameter face 214 directly.And this bicycle rim comprises: the side ring wall 3 of two left and right sides parallel interval, a loop shaped that is engaged on 3 of both sides ring walls are installed ring wall 4, and a loop shaped around ring wall 5.

This side ring wall 3 all comprises a radial inner end 31 and a radial outer end 32 at interval, and this installation ring wall 4 is 31 of radial inner end that are engaged on both sides ring wall 3, comprise two between left and right every and an out of the ordinary and side ring wall 3 reinforcement bending segment 41, in succession be positioned at two strengthen 41 of bending segments flat connect section compartment of terrains, 42, two left and right sides be engaged on the flat tiltedly section of company 43 that connects section 42 and strengthen 41 of bending segments, two between left and right every and one-body molded installation on the oblique section of company 43 dash forward 44.Each is strengthened bending segment 41 and all has: first kink 411, one and first kink 411 of stretching toward interior skew backs from the radial inner end 31 of side ring wall 3 is acute angle bonded assembly second kink 412, and a side turning point 413 that is engaged between the radial inner end of two kinks 411,412.And the central axis event of being somebody's turn to do close this wheel rim in position of the company's of putting down section 42 is lower than this side turning point 413, above-mentioned flat connect section 42 have two rings between left and right every middle turning point 421, and this tiltedly the section of company 43 be distinctly by the low gradually bevelled design in inboard, lateral, each tiltedly the section of company 43 be to be engaged on 421 of second bending part 412 of homonymy and middle turning points, have one towards outside inclined-plane 431, footpath around ring wall 5.

The prominent seat 44 of installation of the present utility model be distinctly from two tiltedly the outside inclined-plane 431, footpath of the section of company 43 give prominence to direction around ring wall 5, the prominent seat 44 of each installation all has the even section of supporting to arrive in 441 of the side ring wall 3 oblique extensions of the middle turning point 421 past homonymies of section 42 of a self-balancing, one be engaged on the section of supporting to arrive in 441 and with skew back connect 43 of sections against section 442, and one by the section of supporting to arrive in 441 and against triangular cross-section space 443 that section 442 defines, therefore the abutment face 444 that cooperates in these annular conical surface 213 gradients that have a gradient and positioning head 21 on the section 442 constitutes a micro-pits seat district installing on the prominent seat 44 by this against section 442 and abutment face 444 jointly.This installation ring wall 4 also comprises two rows between left and right every the mounting hole 45 that also can pass for the portion that passes 211 of positioning head 21 again, and above-mentioned mounting hole 45 is to run through the section of supporting to arrive in 441 that prominent seat 44 is installed to reach the tiltedly section of company 43.And center on ring wall 5 is to be engaged on 3 of both sides ring walls, offer two on it and arrange the radially cooresponding corresponding aperture 51 of mounting hole 45 out of the ordinary and installation ring wall 4, the diameter of above-mentioned corresponding aperture 51 is greater than diameter maximum on the positioning head 21 of spoke 2, so can insert thus to ring wall 4 is installed for this positioning head 21.

Bicycle rim of the present utility model in use, the positioning head 21 of each spoke 2 is by behind the corresponding aperture 51 of ring wall 5, insert toward the mounting hole 45 that ring wall 4 is installed again, after the insertion since the diameter of mounting hole 45 less than positioning head 21 on the diameter of expansion section 212, therefore the annular conical surface 213 of positioning head 21 can be resisted against and form the location on the abutment face 444 that prominent seat 44 is installed, and allows the positioning head 21 after installing obtain the actv. location whereby.Simultaneously since for positioning head 21 against abutment face 444 be provided in a side of bevelled on section 442, and constitute one for positioning head 32 stable micro-pits seat districts against the location, shored and should be subjected to 441 of the sections of supporting to arrive in against section 442, therefore after installation not only positioning head 21 can obtain the actv. location, the position intensity of installing for this positioning head 21 also can obtain to strengthen, and makes bicycle rim have preferable structural strength.In addition, the tiltedly section of company 43 of the present utility model can reduce windage effectively, and have under the heeling condition of the oblique section of company 43, can allow by the prominent seat 44 of the installation that is tending towards level positioning head 21 with near same be to haul spoke 22 point-blank, but not be to draw spoke 22 bendingly, and, also can improve on the whole bicycle rim this side ring wall 3 further and ring wall 4 intensity at position in succession is installed by about the two corresponding formation of strengthening bending segments 41 on the ring wall 4 are installed.

Consult Fig. 4, the structure of second preferred embodiment of the utility model bicycle rim is same as first embodiment substantially, comprise two between left and right every side ring wall 3, an and installation ring wall 4 that is engaged on 31 of the radial inner end of both sides ring wall 3, above-mentioned installation ring wall 4 also comprises: two between left and right every reinforcement bending segment 41, flat connect section 42, two between left and right every and by the low gradually bevelled in inboard, lateral tiltedly the section of company 43, two from this tiltedly the annular of the section of company 43 projections install and dash forward 44, and several mounting holes 45.That is to say, the difference of the utility model second preferred embodiment and first preferred embodiment is: be not located at this around ring wall, by the change of previous constructions, can reach equally and allow positioning head 21 strong fixs, and improve purpose such as bicycle rim structure intensity.

By above explanation as can be known, the utility model on bicycle rim, form two between left and right every and all toward the low tiltedly section of company 43 of central authorities, again in each tiltedly out of the ordinary one-body molded design on the section of company 43 toward the outstanding prominent seat 44 of installation of radial outer end, not only do not see known bicycle rim, in order to reduce windage, the utility model with this tiltedly the section of company 43 be designed under the bevelled situation, can on the whole go up level by this prominent this positioning head 21 of seat 44 strong fixs is installed, and the spoke 22 that itself and direct bearing are drawn can a nearly convergent straight line.Simultaneously owing to the setting that prominent seat 44 and reinforcement bending segment 41 are installed, the position of installing for positioning head 21 on the bicycle rim of the present utility model, and therefore the structural strength of side ring wall 3 and installation ring wall 4 connecting portions also can improve, so this bicycle rim of the utility model is not only constructed novelty, more can under the principle of lightweight, low windage, obtain to improve effects such as structural strength and preferable locating effect.

Claims

1. one kind has the bicycle rim that prominent seat is installed, and can comprise for the positioning head location of many spokes: two between left and right every the side ring wall, and one be engaged between the ring wall of both sides and can be for the installation ring wall of positioning head location; It is characterized in that:

This installation ring wall comprises: two by the low gradually bevelled in inboard, lateral tiltedly the section of company, two distinctly from this tiltedly the section of company dash forward toward the outstanding installation of the radial outer end of bicycle rim, and several mounting holes of installing for positioning head, each install prominent seat all have one for positioning head against against section, and a diagonal brace at this against section and tiltedly connect the intersegmental section of supporting to arrive in.

2. has the bicycle rim that prominent seat is installed according to claim 1, it is characterized in that: also comprise on this installation ring wall: one is engaged on two tiltedly connects and intersegmental flatly connects section, and two between left and right every and distinctly be engaged on the side ring wall of homonymy and tiltedly connect intersegmental reinforcement bending segment.

3. have the bicycle rim that prominent seat is installed as claimed in claim 1 or 2, it is characterized in that:

Wherein this side ring wall all comprises a radial inner end and a radial outer end at interval, and this bicycle rim also comprises: one be engaged between the radial inner end of both sides ring wall and radial outer end around ring wall, this installation ring wall then is to be engaged between the radial inner end of this side ring wall.

4. have the bicycle rim that prominent seat is installed as claimed in claim 1 or 2, it is characterized in that:

The prominent seat of this installation have the abutment face that one section radian and positioning head cooperate on the section, so as to define jointly one for positioning head stable against micro-pits seat district.

5. have the bicycle rim that prominent seat is installed according to claim 1, it is characterized in that:

Also have on the prominent seat of this installation one by this against section and support to arrive in the fixed and space that goes out of segment limit.