Pressure-Sensitive Sensor And Hand

• US 20200132563A1
• Filed: 10/28/2019
• Published: 04/30/2020
• Est. Priority Date: 10/29/2018
• Status: Active Grant

• Current Assignee: Seiko Epson Corporation (Seiko Group)
• Original Assignee: Seiko Epson Corporation (Seiko Group)
• Inventors: TAKAGI, Fumio
• Granted Patent: US 11,041,768 B2
• Time in Patent Office: Days
• CPC Class Codes: B25J 13/082 Grasping-force detectors in general G01L5/16, G01L5/22
• CPC Class Codes: B25J 15/08 having finger members B25J15/02, B25J15/04 take precedence
• CPC Class Codes: G01L 1/2287 constructional details of the strain gauges adjustable resistors H01C10/00
• CPC Class Codes: G01L 9/06 of piezo-resistive devices
• CPC Class Codes: G06F 3/0414 using force sensing means to determine a position
• CPC Class Codes: G06F 3/045 using resistive elements, e.g. a single continuous surface or two parallel surfaces put in contact

Abstract

A pressure-sensitive sensor includes a first electrode, a second electrode, and a conductive resin located between the first electrode and the second electrode, wherein the conductive resin includes a first region, and a second region different from the first region in thickness in a direction in which the first electrode and the second electrode are arranged, and the second region surrounds the first region. Further, the thickness of the second region is thicker than the thickness of the first region. Further, a center of the first electrode is located within the first region in a plan view from the direction in which the first electrode and the second electrode are arranged.

Claims

1. A pressure-sensitive sensor comprising:

a first electrode;

a second electrode; and

a conductive resin located between the first electrode and the second electrode, wherein

the conductive resin includes

a first region, and

a second region different from the first region in thickness in a direction in which the first electrode and the second electrode are arranged, and

the second region surrounds the first region.

2. The pressure-sensitive sensor according to claim 1, wherein

the thickness of the second region is thicker than the thickness of the first region.

3. The pressure-sensitive sensor according to claim 1, wherein

a center of the first electrode is located within the first region in a plan view from the direction in which the first electrode and the second electrode are arranged.

4. The pressure-sensitive sensor according to claim 1, wherein

the conductive resin includes a carbon nanotube.

5. The pressure-sensitive sensor according to claim 1, wherein

the first region and the second region are formed of separate bodies.

6. The pressure-sensitive sensor according to claim 1, wherein

a shape of the first region is a circular shape in a plan view from the direction in which the first electrode and the second electrode are arranged.

7. The pressure-sensitive sensor according to claim 1, wherein

a shape of the first region is a regular polygonal shape in a plan view from the direction in which the first electrode and the second electrode are arranged.

8. The pressure-sensitive sensor according to claim 1, wherein

the three or more second regions are arranged along a circumferential direction of the first region at a distance from each other.

9. The pressure-sensitive sensor according to claim 1, wherein

a different between the thickness of the first region and the thickness of the second region is larger than a surface roughness of the first region and a surface roughness of the second region.

10. A hand comprising:

a first electrode;

a second electrode; and

a conductive resin located between the first electrode and the second electrode, wherein

the conductive resin includes

a first region, and

a second region different from the first region in thickness in a direction in which the first electrode and the second electrode are arranged, and

the second region surrounds the first region.