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Toothed belt and method of manufacturing the same

一种齿形带、带槽的技术，应用在制造齿形带领域，能够解决难以控制无纺织物扩散、不能有效地增强齿形带齿根部分等问题，达到抑制噪音、增强齿根部分、易于制造的效果

Inactive Publication Date: 2013-02-13
TOYOTA JIDOSHA KK +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Also, during molding, it is difficult to control the discontinuous fiber arrangement of the nonwoven fabric that diffuses to the toothed portion as the polyurethane flows
As a result, the root portion of the toothed belt cannot be effectively reinforced

Method used

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  • Toothed belt and method of manufacturing the same
  • Toothed belt and method of manufacturing the same
  • Toothed belt and method of manufacturing the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0033] Embodiments of the present invention will be described with reference to the drawings. figure 1 is a view showing a toothed belt according to the present invention. in addition, Figure 2a , 2b is a view showing a core wire for manufacturing a toothed belt according to the present invention, Figure 3a with 3b as well as Figure 4a with 4b is shown using Figure 2a with 2b The steps for manufacturing a toothed belt from the core wire are shown in .

[0034] figure 1 There is a core wire 3 in the toothed belt 10 shown in , and the core wire 3 includes a core wire 1 made of aramid fiber and a wire 2 made of nylon fiber, and the toothed belt 10 has toothed portions 4 and grooved portions 5 alternately formed along said toothed belt 10 . The core wire 3 , the toothed portion 4 and the grooved portion 5 are integrated by the belt material 7 , thereby substantially configuring the toothed belt 10 . Here, it should be noted that rubber or urethane resin is used as t...

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Abstract

A toothed belt has therein a core wire (3) including a core thread (1) made of aramid fiber and a filament thread (2) made of nylon fiber, and has belt tooth portions (4) and belt groove portions (5) alternately formed therealong. The core wire (3), the belt tooth portions (4), and the belt groove portions (5) are integrated with one another by a rubber material (7). It should be noted herein that the core thread (1) and the filament thread (2) are integrally twined around each other so that the filament thread (2) is formed in the shape of a plurality of loops around the core thread (1). The filament thread (2) in the shape of the loops enters tooth root portions (9) of the belt tooth portions (4) to be arranged therein. As a result, the tooth root portions (9) are strengthened.

Description

technical field [0001] The invention relates to a toothed belt for power transmission having a root portion reinforced by a wire wound around a core, and to a method of manufacturing the toothed belt. Background technique [0002] Generally, for example, a toothed belt is widely used as a member for transmitting power between two shafts in a vehicle engine, a machine tool, and the like. Specifically, a toothed belt for an engine is also called a "timing belt". [0003] Typically, toothed belts are formed of synthetic rubber or polyurethane rubber. Because they are lighter and more flexible than metal roller chains, this toothed belt is distinguished by a lower noise level (even during rotation) and, moreover, does not require any lubrication operate. On the other hand, the raw material itself from which the toothed belt is made has low strength, and cuts tend to occur in the toothed belt due to deterioration of the raw material. Therefore, toothed belts also face several...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16G1/10F16G1/28F16G5/20B29D29/00
CPCF16G1/28B29D29/08F16G5/20F16G1/10
Inventor 四方田英利长濑高志北川达哉楠和也宫外清贵粕谷明
Owner TOYOTA JIDOSHA KK