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Automobile steering sheath and preparation method thereof

A technology of automobile steering column and automobile, which is applied in the direction of steering control, steering column, chemical instruments and methods installed in the car, can solve the problems of weak sound insulation performance, achieve improved sound insulation performance, excellent mechanical properties, and application promising effect

Active Publication Date: 2022-07-15
CHINA FIRST AUTOMOBILE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem of weak sound insulation performance of the existing automobile steering sheath, the present invention proposes an automobile steering sheath and its preparation method

Method used

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  • Automobile steering sheath and preparation method thereof
  • Automobile steering sheath and preparation method thereof
  • Automobile steering sheath and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] This embodiment provides an automobile steering sheath, the sectional structure of which is as follows: figure 2 As shown, the automobile steering jacket includes a first protective layer 1 , a second protective layer 2 , a third protective layer 3 and a filling layer 4 .

[0027] The first protective layer 1 wraps the automobile steering bearing 5 and the automobile steering column 6, and the two ends of the first protective layer 1 are respectively fixed and integrated with the second protective layer 2 and the third protective layer 3. The end of the second protective layer 2 away from the first protective layer 1 is fixedly connected with the front panel sheet metal 7 of the automobile, and the end of the third protective layer 3 away from the first protective layer 1 is sealed with the second protective layer 2 .

[0028] The third protective layer 3 is provided with a cutout 8, and the cutout position is preferably as follows: image 3 As shown, the filling mat...

Embodiment 2

[0031] This embodiment is a further illustration of Embodiment 1. The thickness of the first protective layer 1 is 5-10 mm, and the thickness of the second protective layer 2 and the third protective layer 3 is 3-5 mm.

[0032] In this embodiment, the three-layer sheath is dust-proof, waterproof and sound-insulating. If the thickness of the sheath is too thick, the protective sheath will be too hard and difficult to install. At the same time, the installation is easy and the mechanical performance and sound insulation effect are improved.

Embodiment 3

[0034] This embodiment is a further illustration of Embodiment 1. The first protective layer 1 , the second protective layer 2 and the third protective layer 3 are made of rubber material, and the filling layer 4 is made of foam material.

[0035] The rubber material has excellent sound insulation effect, while the foam material has good sound absorption effect. In this embodiment, the foam material is filled to form a noise isolation-absorption-isolation structure, which greatly improves the protection effect of the steering sheath of the automobile.

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Abstract

The invention discloses an automobile steering sheath and a preparation method thereof, relates to the field of automobile part manufacturing, and solves the problem that an existing automobile steering sheath is relatively weak in sound insulation performance. The automobile steering sheath comprises a first protection layer, a second protection layer, a third protection layer and a filling layer, the first protection layer wraps an automobile steering bearing and an automobile steering column, and the two ends of the first protection layer are fixedly connected with the second protection layer and the third protection layer into a whole respectively. The end, away from the first protection layer, of the second protection layer is fixedly connected with the automobile front wall metal plate, and the end, away from the first protection layer, of the third protection layer is hermetically connected with the second protection layer. A notch is formed in the third protection layer, so that the filling material can be filled in a closed space defined by the first protection layer, the second protection layer and the third protection layer to form a filling layer. The preparation method comprises the steps of injection molding of the three-layer protective sleeve, demolding, sealing and bonding, cutting, injection of the foam material, and standing for molding. The automobile steering sound insulation protection part can serve as an automobile steering sound insulation protection part and is good in application prospect.

Description

technical field [0001] The invention relates to the field of automobile parts manufacturing, in particular to the manufacturing technology of automobile steering sheaths. Background technique [0002] The sheaths in the steering holes of the traditional automobile front wall are all single-layer sheaths, such as figure 1 As shown in the figure, the steering sheath wraps the steering column and then fixes it on the steering hole of the front panel sheet metal. The sheath is made of soft rubber and has a certain elasticity, allowing the steering column to move at a certain angle, but this single-layer protection Covers often suffer from poor sound insulation. [0003] In order to improve the sound insulation effect of the jacket, more and more automobile manufacturers have developed multi-layer jackets. For example, the patent document CN201420356447.8 discloses a vehicle steering column sealing structure. Adding a layer of fixed board as a sound insulation layer inside the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62D1/16B60R13/08B29C69/02B29C69/00B32B5/18B32B25/00
CPCB62D1/16B60R13/0884B29C69/02B29C69/001B32B5/18B32B25/00B32B25/045Y02T10/40
Inventor 李登山赵晶宝潘殿龙赵伟胡杰宏
Owner CHINA FIRST AUTOMOBILE
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