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Rotary connector

A technology of rotating connectors and fixed sides, applied in the direction of flexible/rotatable wire connectors, connections, electrical components, etc., can solve the problems of rising costs, increasing the number of parts, and easy to produce rattling noises, etc., to simplify the structure, Noise suppression and cost reduction effects

Inactive Publication Date: 2014-03-12
ALPS ALPINE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the radial movement of the flat cable is restricted by a plurality of rollers rotatably mounted on the fulcrum of the moving body, so there are problems in that the number of parts constituting the moving body increases and the cost increases, and the rollers and The amount of space required between the support shafts is prone to rattling

Method used

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Examples

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Embodiment Construction

[0054] Hereinafter, embodiments of the invention will be described with reference to the drawings. Such as figure 1 As shown, the rotary connector 1 according to the present embodiment is composed of a fixed-side housing 2, a movable-side housing 3, a moving body 4, a flat cable 5, and the like, and is incorporated into a steering device of an automobile for use. This steering device includes, for example, a steering column C as an installation part, a steering shaft SH that penetrates the steering column C and protrudes, and a steering wheel H connected to the front end of the steering shaft SH. An airbag (not shown) is attached to the steering wheel H. , Gas generators, various switches. Furthermore, since the fixed-side case 2 is fixed to the mounting surface of the steering column C, and the steering wheel H is fixed to the movable-side case 3, the airbag, airbag, and airbag on the steering wheel H side are not affected regardless of the steering angle (rotation angle) of...

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PUM

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Abstract

In a rotary connector in which a movable body rotating with rotation and revolution of a planetary gear and a flat cable having a reversed portion are housed within a housing space defined between outer and inner cylindrical bodies, restricting walls extending in the circumferential direction with an opening therebetween are erected on the movable body molded of resin, the reversed portion is passed through the opening, and the radial movement of the flat cable is restricted. A plurality of groove portions are formed in the inner peripheral surfaces of the restricting walls so as to be continuous with one another along the circumferential direction, and the depth d of the groove portions and the central angle theta corresponding to the length in the circumferential direction of the groove portions are set within ranges of 0.5 mm<=d<=2.0 mm and 5 degrees<=theta<=30 degrees.

Description

technical field [0001] The present invention relates to a rotary connector incorporated into a steering device of an automobile and used as an electrical connection means for an airbag system, and more particularly relates to a rotary connector that is reversed via a reversing part in a storage space between a fixed side case and a movable side case. Rotary connector with flat cable wound around the ground. Background technique [0002] The rotary connector is a housing in which a fixed-side housing having an outer cylinder and a movable-side housing having an inner cylinder are coaxially arranged rotatably and defined between the outer cylinder and the inner cylinder. A member in which a flat cable is accommodated and wound in the space is used as an electrical connection means for airbags, gas generators, etc. mounted on a steering wheel with a limited number of rotations, such as a steering device of an automobile. The above-mentioned flat cable is a strip-shaped body in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01R35/04
CPCB60R16/027
Inventor 会川庆辅朝仓俊晃高桥静始
Owner ALPS ALPINE CO LTD