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Air spring sleeve

A technology of air springs and sleeves, applied in the direction of springs, springs/shock absorbers, hollow objects, etc., can solve the problems of increasing manufacturing costs and increasing the stiffness of the end clamping area.

Inactive Publication Date: 2008-01-02
BFS DIVERSIFIED PRODS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this sleeve construction, as well as other prior art sleeves with reinforced end fittings, increases the thickness of the sleeve end in order to achieve greater stiffness and avoid slippage.
These thickened ends add to manufacturing costs and require the use of integrated machinery that is different from that used to manufacture elastomeric sleeves of equal thickness along the length
[0004] Therefore, there is a need to manufacture an elastic sleeve for an air spring that has its ends made of a material of higher modulus than the body material of the sleeve so that it increases the stiffness in the clamping area of ​​the end, but by not Too much impact on the elasticity and durability of the elastic sleeve

Method used

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Examples

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Embodiment Construction

[0023] 1-3 illustrate an exemplary embodiment of an air spring for a motor vehicle according to the invention, the air spring being designated with reference numeral 1 . As shown in FIG. 1 , a gas spring 1 comprises an end piece 2 and a bottom piece 3 shown as a conventional piston. The improved elastic sleeve, as shown by the reference numeral 5, is an elongated cylindrical member, which is stretched between the end parts 2, 3, and is tightly clamped at the joint by the steel rings 6, 7 respectively, so that A pressure chamber 9 is formed therein. The sleeve 5 is preferably formed as an elastic sleeve mainly made of rubber, but can also be made of thermoplastic rubber (TPE), thermoplastic vulcanizate (TPV), thermoplastic olinfins (TPO) and similar elastic materials, neither Ideas affecting the invention. The end pieces 2, 3 are respectively connected to two spacers 11, 12, which may be a part of the motor of the vehicle, such as the chassis of the vehicle or the axle of the...

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Abstract

A flexible sleeve (5) for an air spring terminates in end portions (25, 26) which define a pair of open ends. The sleeve (5) has inner and outer layers (13, 14) of a flexible material with a plurality of reinforcement elements (21, 22) disposed within the materials with the reinforcement elements extending throughout the end portions. Inner and outer layers of the end portions (25, 26) are joined to the inner and outer layers (13, 14) of the sleeve, by non-overlapping joints (27, 28) with the inner and outer layers of the end portions (25, 26) having a higher modulus of elasticity than the inner and outer layers (13, 14) of the sleeve.

Description

technical field [0001] The invention relates to an air spring, and mainly relates to an improved sleeve used in the air spring. In particular, it relates to an air spring sleeve having a modified end portion that reduces slippage under the clamp ring without affecting the ride characteristics of the air spring. Background technique [0002] Air springs generally include two end pieces connected to respective ends of a fibre-reinforced elastomeric bladder or sleeve. These air springs are mainly used in automobiles to support the car body, or for other impact-bearing equipment to act as a buffer. Air spring sleeves generally have opposite ends for sealing connection to end pieces by means of profiled steel rings forming a pressurized fluid chamber inside the sleeve. The elastic sleeve usually includes two inner and outer layers made of reinforced elastic material, and multiple reinforcing solutions can be sandwiched between the inner and outer layers, or combined into the in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16F9/04F16F9/05B29D22/00
CPCF16F9/0409F16F9/05F16F9/0463B60G2206/424
Inventor R·科克J·伦塞尔
Owner BFS DIVERSIFIED PRODS