CN2681926Y

CN2681926Y - Bicycle rim with double-level crossed wear indicating structure

Info

Publication number: CN2681926Y
Application number: CN 200420002813
Authority: CN
Inventors: 陈朝颖
Original assignee: Alex Global Technology Inc
Current assignee: Alex Global Technology Inc
Priority date: 2004-01-19
Filing date: 2004-01-19
Publication date: 2005-03-02
Anticipated expiration: 2014-01-19

Abstract

The utility model provides a bicycle rim with a double-level crossed wear indicating structure. In order to provide a flat bicycle component which has increased preliminary wear resistant and can precisely display the wear level, the utility model is proposed; the bicycle rim with the double-level crossed wear indicating structure is composed of a spaced annular side wall which is respectively provided with a radial internal edge and a radial external edge, an annular bottom wall which is connected with the radial internal edges of the annular side walls, and a wear indicating structure which is arranged on the opposite external side surfaces of the two annular side walls. The wear indicating structure is composed of a plurality of wear grooves which are intermittently arranged on the external side surfaces of the two annular side walls, a plurality of annular stripes which are intermittently arranged on the external side surfaces of the annular side walls along the shape of the annular side walls; the depth of the annular stripes is lighter than the depth of the wear grooves, and the direction of the annular stripes is staggered with the direction of the wear grooves.

Description

The bicycle rim of the staggered abrasion caution in the two rank of tool structure

Technical field

The utility model belongs to bicycle assembly parts, the bicycle rim of the staggered abrasion caution in the two rank of particularly a kind of tool structure.

Background technology

Because aluminum alloy has advantages such as light weight, intensity be good, therefore, present bicycle rim is mostly by the aluminum alloy extrusion forming.During fabrication, earlier aluminum alloy materials is squeezed into strip, cuts palintrope with certain-length again and press to the ring-type framework, at last the two ends of ring-type framework are docked, form a complete circular rim.Regular Bicycle usually can be at wheel rim both sides correspondence installing two brake linings.During use, by the surface, two side of two brake linings friction wheel rim, to reach the effect of slowing-down brake.Yet when brake, brake lining and two side all can when the two side wears away extremely to a certain degree, just must be changed to keep safety because of the abrasion attenuation.

The user of service can directly observe the worn-down situation from sidewall for convenience, and the inventor once conceived a kind of bicycle rim with wearing and tearing caution structure.As shown in Figure 1, on the opposite sides 111 of bicycle rim 1 two side 11 that having weares and teares warns structure, be respectively equipped with several wearing and tearing caution grooves 112 separately.During brake, two sides 111 can corresponding be subjected to clipping of two brake linings and rub and attenuation gradually, and the user of service just can learn the degree of wear of sidewall 11 by the change in depth of wearing and tearing caution groove 112, with in good time replacing wheel rim 1, guarantees safety.

As shown in Figure 2, on the opposite sides 111 of bicycle rim 1 two side 11, tilt to be provided with several wearing and tearing caution grooves 113 separately respectively at interval.

As shown in Figure 3, wearing and tearing caution groove 112,113 is to utilize directly punch forming on the side 111 of two side 11 of punching machine on making.Section with regard to microcosmic sidewall 11, inwardly pressed when side 111 and to be fallen into when forming wearing and tearing caution groove 112, material (as the imaginary line zone of the figure) part that originally is arranged in wearing and tearing caution groove 112 can be pushed and press to outer and raised side 111, form two lug bosses 12 that are positioned at wearing and tearing caution groove 112 both sides, make that side 111 is uneven.When brake was used, lug boss 12 will cause the brake irregularity.Wearing and tearing caution groove 113 also can produce the phenomenon that causes the brake irregularity because of lug boss equally.

As shown in Figure 4, the inventor also once conceived on the opposite sides 211 of bicycle rim 2 two sides 21, was concaved with annular wearing and tearing caution groove 212 along the shape of sidewall 21.This wearing and tearing caution groove 212 is to utilize the CNC lathe directly to be lathed type on the side 211 of two side 21 on making.

As shown in Figure 5, section with regard to microcosmic sidewall 21, because the lathe tool of lathe is directly to get on the bus except that the material in the wearing and tearing caution groove 212 in side 211, so on side 211, can not form rough surface, just with regard to the strength of material structure, after the turning, the intensity of the bending place that side 211 and wearing and tearing caution groove are 212 is bigger, and the place's of being cut surface orientation structure of flattened side walls 21 also can change, thereby make wearing and tearing warn two seamed edges 22 of groove 212 and sidewall 21 adjoiners, have harder mechanical characteristics.When brake is used, the softer sidewall 21 (the imaginary line part among the figure) of quality can be worn away earlier, and two harder seamed edges 22 of residual quality, as constructing after the represented abrasion of solid line among the figure, cause wearing and tearing caution groove 212 to be difficult for being worn relatively along with the ablation of sidewall 21, can reduce the effect of forfeiture wearing and tearing caution, tool is not warned effect accurately.

Summary of the invention

The purpose of this utility model provides a kind of smooth and have and increase preliminary abrasion performance, accurately show the bicycle rim of the staggered abrasion caution in the two rank of the tool structure of degree of wear.

The utility model comprise at interval and have respectively radially inward edge and radially outward edge annular sidewall, connect annular sidewall radially inward edge annular bottom wall and be arranged at abrasion caution structure on the opposite lateral surface of two annular sidewalls; Abrasion cautions structure comprises that several abrasion grooves of being arranged at intervals on the two annular sidewall lateral surfaces and several are arranged at intervals at annular line on the annular sidewall lateral surface along the shape of annular sidewall respectively; The degree of depth of annular line is shallower than the degree of depth of abrasion groove, and the direction of annular line is staggered with the direction of abrasion groove.

Wherein:

Abrasion caution structure has number and is overlayed on the skin membrane that wears away in the groove.

Skin membrane is dark anode film; The annular line presents the metal primary colors that strikes off behind the anode film.

Two adjacent annular line spacings are 0.1mm.

The degree of depth of each annular line is 0.03～0.05mm.

Two adjacent abrasion separation are 0.6mm.

The degree of depth of each abrasion groove is about 0.2 5～0.3mm.

It is crisscross that the direction of the direction of annular line and abrasion groove is vertical configuration.

Since the utility model comprise at interval and have respectively radially inward edge and radially outward edge annular sidewall, connect annular sidewall radially inward edge annular bottom wall and be arranged at abrasion caution structure on the opposite lateral surface of two annular sidewalls; Abrasion cautions structure comprises that several abrasion grooves of being arranged at intervals on the two annular sidewall lateral surfaces and several are arranged at intervals at annular line on the annular sidewall lateral surface along the shape of annular sidewall respectively; The degree of depth of annular line is shallower than the degree of depth of abrasion groove, and the direction of annular line is staggered with the direction of abrasion groove.During use, the degree that the abrasion groove caution bicycle rim that forms by several punching presses is worn away; Then relend the course of processing by car system annular line, with on the annular sidewall because of the formed boss plough of punching press removes, and can improve the abrasion performance at lateral surface initial stage, thereby have the effect that increases the service life; In addition, the anode epithelium that strikes off black owing to annular line shows the metal primary colors, and the abrasion groove manifests the black of anode epithelium, so that lateral surface forms is significantly double-colored, reaches eye-catching and is easy to estimate the effect of caution.Not only smooth and have and increase preliminary abrasion performance, and accurately show degree of wear, thus reach the purpose of this utility model.

Description of drawings

Fig. 1, be known bicycle rim structure diagrammatic elevation view with radial punch moulding wearing and tearing caution groove.

Fig. 2, be known bicycle rim part-structure schematic isometric with oblique punch forming wearing and tearing caution groove.

Fig. 3, be A-A cutaway view among Fig. 1.

Fig. 4, be known bicycle rim local structure schematic isometric with turning moulding ring-type wearing and tearing caution groove.

Fig. 5, be B-B cutaway view among Fig. 4.

Fig. 6, be the utility model local structure schematic isometric.

Fig. 7, be C-C cutaway view among Fig. 6.

Fig. 8, be D-D cutaway view among Fig. 6.

Fig. 9, be the utility model manufacturing flow chart.

Figure 10, be the utility model part-structure diagrammatic elevation view.

The specific embodiment

As Fig. 6, Fig. 7, shown in Figure 8, the utility model is for slightly being the circular body of U type with aluminium alloy extruded moulding and section, its comprise between left and right every annular sidewall 3, annular bottom wall 4 and abrasion caution structure 5.

Each annular sidewall 3 has radially inward edge 31, away from the radially outward edge 32 of radially inward edge 31 and away from the lateral surface 33 of another annular sidewall 3.Lateral surface 33 connects radially inward edge 31 and radially outward edges 32, and in contrast to the lateral surface 33 of another annular sidewall 3.

Annular bottom wall 4 consubstantialities connect the radially inward edge 31 of annular sidewall 3.

Abrasion caution structure 5 is arranged on the opposite lateral surface 33 of two annular sidewalls 3, and it comprises several abrasion grooves 51, several annular line 52 and number skin membrane 53.

Abrasion groove 51 is for being formed on two lateral surfaces 33 at interval respectively, and each abrasion groove 51 be by extending settings towards near the radially outward edge 32 near the radially inward edge 31, and each degree of depth that wears away groove 51 is about 0.25～0.3mm.As shown in figure 10, two adjacent abrasion groove 51 spacings are 0.6mm.

Annular line 52 is arranged at intervals on two lateral surfaces 33 for the shape along annular sidewall 3 respectively, and two adjacent annular line 52 spacings are 0.1mm, and the degree of depth of each annular line 52 is 0.03-0.05mm.The degree of depth of annular line 52 is shallower than the degree of depth of abrasion groove 51.And it is crisscross that the direction of the direction of annular line 52 and abrasion groove 51 can be vertical configuration, and it is staggered also can be the inclined at acute angles shape.

Skin membrane 53 is for being overlayed on one deck dark color in the abrasion groove 51, and the smooth anode film of black for example is so as to showing the degree of wear of bicycle rim.Annular line 52 presents the metal primary colors that strikes off behind the anode film.

As shown in Figure 9, the manufacturing of abrasion caution structure 5 comprises the steps: in the utility model

Step 1

Punching press

On the lateral surface 33 of annular sidewall 3, stamp out several abrasion grooves 51 separately respectively.

Step 2

Anodizing

Bicycle rim is put into the reactive tank that is full of electrolyte solution, make anodizing with anodizing (AnodicOxidation) or anode epithelium method (Anodic Film), in the reactive tank electrolyte solution, bicycle rim is connected in anode, during galvanization, the anion migration anode of negative charge, and at anode place discharge depositing, form one deck anode epithelium 53 shown in the imaginary line of Fig. 7 with lining in the surface of two annular sidewalls 3, diapire 4 and abrasion groove 51, anode epithelium 53 makes the surface more can oxidation.

Step 3

Turning processing

Utilize the automation numerical value control tool machine, CNC lathe detailed manufacture for example, center with annular outboard face 33 is the axle center, radially equi-spaced apart 0.1mm ground car is made several as Fig. 7, fine and closely woven annular line 52 shown in Figure 8, and strike off anode epithelium 53 on the lateral surface 33 relatively, expose white aluminum alloy; In order to increase surface friction coefficient, form brake lining; Because the degree of depth of annular line 52 wears away the depth as shallow of groove 51, so abrasion groove 51 still shows the black of lining anode epithelium 53.

As mentioned above, the utlity model has following advantage:

One, turning processed can be with flat because of punching press abrasion groove 51 formed male and fomale(M﹠F) ploughs on the lateral surface 33, while is by the design of annular line 52, more can increase the hardness on annular sidewall 3 shallow-layer surfaces, improve the preliminary abrasion performance of bicycle rim, after this hard formation surface abrasion, just can continue this annular sidewall 3 of deep abrasion, therefore can increase the service life.

Two, between the bicycle rim used life, brake lining is because of being subjected to the attenuation of wearing and tearing gradually that rubs that clips of brake lining 6, and simultaneously at worn-down, abrasion groove 51 degree of depth will shoal gradually with it, more because annular line 52 is the aluminum alloy white of striking off behind the anode epithelium 53, then be coated with the anode epithelium 53 of black on the abrasion groove 51, it is double-colored to make that lateral surface 33 presents obviously different black and white, therefore can quite easily estimate the wearing and tearing situation of learning annular sidewall 3, after abrasion groove 51 finally wears away fully, just demonstrate this bicycle rim and may wear to a preestablished limit degree, so check result and warn and learn and bicycle rim should be renewed whereby is to guarantee safety.

In sum, the utility model is warned the degree that bicycle rims are worn away by the abrasion groove 51 that several punching presses form; Then relend the course of processing by car system annular line 52, with on the annular sidewall 3 because of the formed boss plough of punching press removes, and can improve the lateral surface abrasion performance at 33 initial stages, so have the effect that increases the service life; In addition, the anode epithelium that strikes off black owing to annular line 52 shows the metal primary colors, is exactly white aluminum alloy, and abrasion groove 51 can manifest the black of anode epithelium, and it is significantly double-colored to cause lateral surface 33 to form, and reaches eye-catching and is easy to estimate the effect of caution.

Claims

1, the bicycle rim of the staggered abrasion caution in the two rank of a kind of tool structure, it comprise at interval and have respectively radially inward edge and radially outward edge annular sidewall, connect annular sidewall radially inward edge annular bottom wall and be arranged at abrasion caution structure on the opposite lateral surface of two annular sidewalls; Abrasion caution structure comprises several abrasion grooves that are arranged at intervals on the two annular sidewall lateral surfaces; It is characterized in that described abrasion caution structure comprises that also several is arranged at intervals at annular line on the annular sidewall lateral surface along the shape of annular sidewall respectively; The degree of depth of annular line is shallower than the degree of depth of abrasion groove, and the direction of annular line is staggered with the direction of abrasion groove.

2, the bicycle rim of the staggered abrasion caution in the two rank of tool according to claim 1 structure is characterized in that described abrasion caution structure has number and overlayed on skin membrane in the abrasion groove.

3, the bicycle rim of the staggered abrasion caution in the two rank of tool according to claim 2 structure is characterized in that described skin membrane is dark anode film; The annular line presents the metal primary colors that strikes off behind the anode film.

4, the bicycle rim of the staggered abrasion caution in the two rank of tool according to claim 1 structure is characterized in that described two adjacent annular line spacings are 0.1mm.

5, the bicycle rim of the staggered abrasion caution in the two rank of tool according to claim 1 structure, the degree of depth that it is characterized in that described each annular line is 0.03～0.05mm.

6, the bicycle rim of the staggered abrasion caution in the two rank of tool according to claim 1 structure is characterized in that described two adjacent abrasion separation are 0.6mm.

7, the bicycle rim of the staggered abrasion caution in the two rank of tool according to claim 1 structure is characterized in that the degree of depth of described each abrasion groove is about 0.25～0.3mm.

8, it is crisscross that the bicycle rim of the staggered abrasion caution in the two rank of tool according to claim 1 structure, the direction that it is characterized in that described annular line and the direction of abrasion groove are vertical configuration.