WO2023193221A1

WO2023193221A1 - Bicycle handlebar structure and manufacturing method therefor

Info

Publication number: WO2023193221A1
Application number: PCT/CN2022/085739
Authority: WO
Inventors: 许秀政
Original assignee: 许秀政
Priority date: 2022-04-08
Filing date: 2022-04-08
Publication date: 2023-10-12

Abstract

A manufacturing method for a bicycle handlebar of the prevent invention, comprising: preparing a handlebar; coating a clamping position of the handlebar with a composite structure, wherein the composite structure comprises a resin film + carborundum + a resin film; then placing the handlebar coated with the composite structure into a mold; and carrying out heating and pressurization, so that the composite structure can be integrally formed with the handlebar, and the formed handlebar can form, at the clamping position, a rough section having a rough surface.

Description

Bicycle handlebar structure and manufacturing method

Technical field

The present invention relates to bicycle parts, in particular to a bicycle handlebar structure and a manufacturing method thereof.

Background technique

In terms of the structure of the bicycle, the handlebar 1 of the bicycle is installed on a stem 2, which is then connected to the front fork. The structure of the faucet 2 is mostly to clamp the circular tubular handlebar 1 in a manner similar to a C-shaped buckle, as shown in Figures 1 and 2. In order to increase the friction between the handlebar and the faucet to prevent the handlebar from rotating, most current methods are to spray paint or sandblast the local surface of the handlebar so that the rough paint or sand can adhere to the surface of the handlebar. Create a rough surface to improve the faucet's clamping effect.

However, after long-term use of this method, the paint or sandblasting on the surface of the handlebars will fall off, reducing the friction and losing the original effect.

invention disclosure

The main purpose of the present invention is to provide a bicycle handlebar structure and a manufacturing method that can partially improve the surface roughness of the handlebar and increase the engagement strength with the faucet.

In order to achieve the above main purpose, the bicycle handlebar manufacturing method of the present invention includes: preparing a handlebar, each of the two ends of the handlebar has a grip portion for the user to hold, and covering the handlebar with a composite structure. Handlebar clamping position. The composite structure includes a resin film + emery + resin film. The handlebars covered with the composite structure are then placed in a mold, heated and pressurized, so that the composite structure can be combined with the handlebars to form. The formed handlebars will be The clamping position forms a rough section with a rough surface.

Preferably, the total length of the rough section may range from approximately 5 to 150 mm.

Preferably, the mold can be provided with bite patterns at the position corresponding to the rough section, which can further increase friction.

The detailed structure, features, assembly or usage provided by the present invention will be described in the subsequent detailed description of the embodiments. However, those skilled in the art should understand that these detailed descriptions and specific examples for implementing the present invention are only used to illustrate the present invention and are not intended to limit the scope of the patent application of the present invention.

Brief description of the drawings

Figure 1 is a three-dimensional schematic diagram of a bicycle handlebar and a faucet in the prior art;

Figure 2 is a schematic cross-sectional view at section 2-2 of Figure 1;

Figure 3 is an exploded schematic diagram of the composite structure;

Figure 4 is a schematic cross-sectional view of the composite structure;

Figure 5 is a schematic cross-sectional view of a handlebar covered with a composite structure;

Figure 6 is a schematic diagram of the composite structure being covered with a handlebar and then placed in a mold;

Figure 7 is a schematic diagram of the appearance of the finished product of the present invention.

Among them, reference signs

1 handlebar

2 faucets

10 resin film

11 emery

20 resin film

30 gauze

40 composite structures

50 handlebars

51 clamping position

52 rough section

60 mold

Best way to carry out the invention

The structural principle and working principle of the present invention will be described in detail below in conjunction with the accompanying drawings:

The applicant would like to first explain that in this specification, including the embodiments introduced below and the claims in the patent application scope, terms related to directionality are based on the direction in the drawings. Secondly, in the embodiments and drawings to be introduced below, the same component numbers represent the same or similar components or structural features thereof.

Referring to Figures 3 to 7, the bicycle handlebar manufacturing method of the present invention includes:

Step A is to remove emery 11 on a layer of resin film 10. The particles of emery 11 should not be too large or too small.

In step B, a layer of resin film 20 and a layer of gauze 30 are pasted on the emery 11 to form a composite structure 40 of resin film 10 + emery 11 + resin film 20 + gauze 30 . Vacuuming can be used to assist in this step to ensure that the combination of each layer of materials is more complete and no air bubbles remain in between.

Step C, prepare a handlebar 50, each of the two ends of the handlebar has a grip portion for the user to hold, and the composite structure 40 is covered and arranged at the clamping position 51 of the handlebar, as indicated here. The clamping position refers to the position where the handlebars are to engage with the faucet. When the composite structure 40 is wrapped on the handlebar 50, the gauze layer 30 is attached to the handlebar 50 in the innermost layer.

In step D, the handlebar 50 covered with the composite structure 40 is placed in a mold 60, heated to 120 to 150°C and pressurized, so that the composite structure 40 and the handlebar 50 can be combined and formed. The handlebar mentioned here does not limit its style or material type, but it is preferably made of carbon fiber material, and the resin film will have a better combination effect with it.

The handlebar made according to the above-mentioned method of the present invention will form a rough section 52 with a rough surface at the clamping position 51. The total length of the rough section can vary according to different styles of handlebars, but Its total length ranges from approximately 5 to 150mm. Through this structural arrangement, the emery can be firmly combined with the rider's handlebar, and the concave and convex texture can be maintained for a long time to improve the clamping effect of the faucet. Furthermore, since the emery is covered by a resin film, unlike existing handlebar products that spray emery onto the surface of the handlebar, the structure of the present invention is less likely to wear or fall off.

In addition, in order to increase the friction effect of the rough section, the mold can be provided with bite marks at the position of the rough section, so that the rider handlebar can have a more obvious surface protrusion and granular shape in the rough section after molding, which can increase friction. force.

In step B of the above implementation, the composite structure is superimposed by resin film 10 + emery 11 + resin film 20 + gauze 30, but it can also be superimposed by resin film 10 + emery 11 + resin film 20 The purpose of adding the gauze layer is to make the composite structure easy to handle and process. In step C, the composite structure 40 covered on the handlebar 50 is not limited to one. Multiple composite structures 40 can also be covered at the clamping position 51, so that the multiple composite structures are superimposed to form a certain thickness. , the thickness is about 3 to 5mm, because if it is too thin, the effect of increasing friction will not be obvious, and if it is too thick, it will affect the clamping of the faucet.

Of course, the present invention can also have various other embodiments. Without departing from the spirit and essence of the present invention, those skilled in the art can make various corresponding changes and modifications according to the present invention. However, these corresponding Changes and deformations should fall within the protection scope of the appended claims of the present invention.

Industrial applicability

The bicycle handlebar manufacturing method of the present invention can use resin film-coated emery to be placed at the clamping position, so that the emery and the rider's handle are well combined and the concave and convex texture can be maintained for a long time to improve the clamping effect of the faucet.

Claims

A method for manufacturing bicycle handlebars, which is characterized in that it includes:

Step A, remove emery on a layer of resin film;

Step B: Paste another layer of resin film on the emery to form a composite structure of resin film + emery + resin film;

Step C, prepare a handlebar, and cover the composite structure at the clamping position of the handlebar;

In step D, the handlebar covered with the composite structure is placed in a mold, heated and pressurized, so that the composite structure can be combined with the handlebar to form.
The method of manufacturing a bicycle handlebar according to claim 1, wherein the clamping position refers to a position where the handlebar is to be connected to the faucet.
The manufacturing method of bicycle handlebars according to claim 2, characterized in that the manufactured handlebars form a rough section with a rough surface at the clamping position, and the total length of the rough section ranges from 5 to 150 mm. .
The method of manufacturing a bicycle handlebar according to claim 2, wherein the composite structure further includes a gauze layer.
The method of manufacturing a bicycle handlebar according to claim 4, wherein when the composite structure is wrapped on the handlebar, a gauze layer is attached to the handlebar in the innermost layer.
The manufacturing method of bicycle handlebars according to claim 5, characterized in that the manufactured handlebars form a rough section with a rough surface at the clamping position, and the total length of the rough section ranges from 5 to 150 mm. .
A bicycle handlebar structure is characterized by including:

A handlebar body with a grip portion at each end;

A composite structure is composed of a resin film + emery + a resin film superimposed. The composite structure covers the clamping position of the handlebar body and forms a rough section with a rough surface at the clamping position. The clamped position refers to the position where the handlebars are to engage with the faucet.
The bicycle handlebar structure according to claim 7, wherein the total length of the rough section ranges from 5 to 150 mm.
A bicycle handlebar structure is characterized by including:

A handlebar body with a grip portion at each end;

A composite structure is composed of a resin film + emery + a resin film + gauze. The composite structure covers the clamping position of the handlebar body and forms a rough section with a rough surface at the clamping position. , the clamping position refers to the position where the handlebar is to be connected to the faucet.
The bicycle handlebar structure according to claim 9, wherein the total length of the rough section ranges from 5 to 150 mm.