CORD SWITCH AND CORD SWITCH MOUNTING STRUCTURE

• US 20140318934A1
• Filed: 04/02/2014
• Published: 10/30/2014
• Est. Priority Date: 04/30/2013
• Status: Active Grant

• Current Assignee: Hitachi Metals (Thailand) Ltd.
• Original Assignee: Hitachi Metals (Thailand) Ltd.
• Inventors: Aoyama, Takashi, Takaba, Shinichi, Onimoto, Takashi, Yamaura, Akira
• Granted Patent: US 9,202,644 B2
• Time in Patent Office: Days
• US Class Current: 200/61.42
• CPC Class Codes: E05F 15/443 specially adapted for vehicle windows or roofs
• CPC Class Codes: E05F 15/46 responsive to changes in electrical capacitance
• CPC Class Codes: E05Y 2600/526 Glueing or cementing
• CPC Class Codes: H01H 3/142 of the elongated strip type
• CPC Class Codes: H01H 3/161 for actuation by moving a closing member, e.g. door, cover or lid the switch controlling enclosed equipment H01H9/226; switches operated by a removable member, wherein one single insertion movement of a key comprises an unlocking stroke and a switch actuating stroke, e.g. security switch for safety guards H01H27/002
• CPC Class Codes: H01H 3/60 Mechanical arrangements for preventing or damping vibration or shock

Abstract

A cord switch including a cord switch main body including a hollow tubular member having elasticity and electrical insulating property and a plurality of electrode wires provided to face each other with an interval at an inner surface of the tubular member and spaced from each other by the elasticity of the tubular member, and a mounting member having an elastic modulus greater than an elastic modulus of the tubular member and being provided along the cord switch main body. The cord switch also includes a strip-shaped impact absorption member having an elastic modulus lower than the elastic modulus of the tubular member, which is interposed between the cord switch main body and the mounting member.

Claims

1. A cord switch comprising:

a cord switch main body comprising a hollow tubular member having elasticity and electrical insulating property and a plurality of electrode wires provided to face each other with an interval at an inner surface of the tubular member and spaced from each other by the elasticity of the tubular member;

a mounting member having an elastic modulus greater than an elastic modulus of the tubular member and being provided along the cord switch main body; and

a strip-shaped impact absorption member having an elastic modulus lower than the elastic modulus of the tubular member and being interposed between the cord switch main body and the mounting member.

2. The cord switch, according to claim 1, wherein the mounting member comprises a main body for mounting the impact absorption member, and a pair of protruding portions for sandwiching the impact absorption member in a width direction which is perpendicular to a longitudinal direction of the impact absorption member, thereby restricting a deformation in the width direction of the impact absorption member.

3. The cord switch, according to claim 2, wherein a gap is provided between the impact absorption member and the pair of protruding portions, and a dimension of the gap in the width direction is not less than 0.1 mm and not greater than 2 mm.

4. The cord switch according to claim 2, wherein a height of the pair of protruding portions from the mounting member is not less than 0.3 times and not greater than 5 times of the thickness of the impact absorption member.

5. The cord switch according to claim 1, wherein the elastic modulus of the impact absorption member is not less than 1×

10⁵ Pa and not greater than 1×

10⁸ Pa.

6. The cord switch according to claim 1, wherein the thickness of the impact absorption member is not less than 0.2 mm and not greater than 3 mm.

7. The cord switch according to claim 1, wherein that the impact absorption member comprises a foamed material.

8. A cord switch mounting structure for mounting a cord switch main body comprising a hollow tubular member having elasticity and electrical insulating property and a plurality of electrode wires provided to face each other with an interval at an inner surface of the tubular member on a mounting member having an elastic modulus greater than an elastic modulus of the tubular member, comprising:

a strip-shaped impact absorption member having an elastic modulus lower than the elastic modulus of the tubular member and being interposed between the cord switch main body and the mounting member.

9. The cord switch mounting structure according to claim 8, wherein the mounting member comprises a main body for mounting the impact absorption member, and a pair of protruding portions for sandwiching the impact absorption member in a width direction which is perpendicular to a longitudinal direction of the impact absorption member, thereby restricting a deformation in the width direction of the impact absorption member.