SYSTEM FOR DETECTING DEFORMATION OF CUSHION PAD AND PRODUCTION THEREOF
First Claim
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1. A system for detecting a deformation of a cushion pad, comprising;
- the cushion pad comprising a magnetic elastomer in which magnetic filler is dispersed in an elastomer and an arithmetic average roughness (Ra) is 0.5 to 1.0 μ
m, and a soft polyurethane foam which is integrated with the magnetic elastomer by adhesion, anda magnetic sensor that detects a magnetic change caused by a deformation of the cushion pad.
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Abstract
The present invention provides a cushion pad with improved durability without feeling of a foreign object. The present invention thus provides a system for detecting a deformation of a cushion pad, comprising; the cushion pad comprising a magnetic elastomer in which magnetic filler is dispersed in an elastomer and an arithmetic average roughness (Ra) is 0.5 to 1.0 μm, and a soft polyurethane foam which is integrated with the magnetic elastomer by adhesion, and a magnetic sensor that detects a magnetic change caused by a deformation of the cushion pad. The present invention also provides a production method thereof.
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Citations
27 Claims
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1. A system for detecting a deformation of a cushion pad, comprising;
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the cushion pad comprising a magnetic elastomer in which magnetic filler is dispersed in an elastomer and an arithmetic average roughness (Ra) is 0.5 to 1.0 μ
m, and a soft polyurethane foam which is integrated with the magnetic elastomer by adhesion, anda magnetic sensor that detects a magnetic change caused by a deformation of the cushion pad. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A system for detecting a deformation of a cushion pad, comprising the cushion pad and a sensor detecting the deformation of the cushion pad, wherein the cushion pad is composed of a magnetic elastomer in which magnetic filler is dispersed in an elastomer and an arithmetic average roughness (Ra) is 0.1 to 10 μ
- m, and a soft polyurethane foam which is integrated with the magnetic elastomer by adhesion, and the sensor is a magnetic sensor that detects a magnetic change caused by a deformation of the magnetic elastomer associated with the cushion pad.
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12. A method for producing a system for detecting a deformation of a cushion pad, comprising the cushion pad and a sensor detecting the deformation of the cushion pad, which comprises the steps of:
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a step of preparing a magnetic elastomer having an arithmetic average roughness (Ra) of 0.1 to 10 μ
m,a step of pouring a raw material of a soft polyurethane foam into a mold for a cushion pad, and foaming to form the cushion pad, a step of integrate the magnetic elastomer with the soft polyurethane foam raw material by adhesion, and a step of combining the cushion pad with a magnetic sensor that detects a magnetic change caused by a deformation of the cushion pad. - View Dependent Claims (13, 14, 15, 16, 17, 18)
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19. A method for producing a system for detecting a deformation of a cushion pad, comprising the cushion pad and a sensor detecting the deformation of the cushion pad, which comprises the steps of:
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a step of preparing a magnetic elastomer having an arithmetic average roughness (Ra) of 0.1 to 10 μ
m,a step of disposing the magnetic elastomer in a mold for a cushion pad, a step of pouring a raw material of a soft polyurethane foam into the mold a step of foaming the raw material of the soft polyurethane foam to integrate the soft polyurethane foam with the magnetic elastomer by self-adhesion, thus forming a cushion pad, and a step of combining the cushion pad with a magnetic sensor that detects a magnetic change caused by a deformation of the cushion pad. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27)
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Specification