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Emergency stop pressure sensor, safety device, and safety system

A pressure sensor and safety device technology, applied in the field of emergency stop pressure sensors, can solve the problems of difficulty in reducing injuries, detection reduction, low pressure detection sensitivity, etc., and achieve the effect of improving pressure detection sensitivity

Active Publication Date: 2018-11-09
RICOH KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the sensor has low pressure detection sensitivity upon contact
Especially when using compressive fluids such as air, the detection is significantly reduced
The contact / collision state continues until the movable part stops driving, which makes it difficult to reduce damage

Method used

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  • Emergency stop pressure sensor, safety device, and safety system
  • Emergency stop pressure sensor, safety device, and safety system
  • Emergency stop pressure sensor, safety device, and safety system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] Embodiments of the present invention will now be described with reference to the accompanying drawings. Figure 1-Figure 6 The first embodiment will be described below.

[0027] summary

[0028] figure 1 is a schematic cross-sectional view of an element according to the present embodiment. The element 1 has a first electrode 2 and a second electrode 3 facing each other and an intermediate layer 4 provided between the first and second electrodes and formed of rubber or a rubber composition.

[0029] detail

[0030] first electrode and second electrode

[0031] The material, shape, size, and structure of the first electrode and the second electrode are not particularly specified and may be selected as appropriate according to purposes. Materials, shapes, dimensions, and structures may or may not be shared between the first and second electrodes, although sharing is more preferred. Examples of materials for the first electrode and the second electrode include metals,...

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Abstract

Emergency stop pressure sensors 17 are provided to both side surfaces of a movable link 11 of a robot arm 14 of an assembly robot. When an operator S unintentionally approaches the turning range Ra ofthe robot arm 14 and contacts the emergency stop pressure sensor 17, a detection signal is sent to a control means 19, and the control means 19 blocks the supply of electricity to a drive source forcausing the robot arm 14 to turn. The emergency stop pressure sensors 17 have a first electrode and a second electrode constituting a pair of electrodes, and an intermediate layer formed of rubber ora rubber composition and provided between the pair of electrodes, the intermediate layer generating power through being deformed by contact with a contacted body (the operator). One stacking-directionside of the intermediate layer is subjected to a surface-reforming process and / or an inactivation process so that the one side and the other side are deformed to different degrees by the same deformation-imparting force.

Description

technical field [0001] The present invention relates to a pressure sensor for an emergency stop, a safety device, and a safety system. Background technique [0002] For example, if a worker inadvertently walks within the range of motion of a movable part of a robot that delivers products to an assembly location, it is possible for the worker to come into contact with the robot. The same thing happens when something is inadvertently placed within the range of motion of the movable part. In order to reduce or prevent injuries caused by sudden contact or collision, it is necessary to sense the contact immediately, turn off the driving power of the movable body as quickly as possible, and cause the movable body to move in the opposite direction to the contact direction. [0003] A safety device for a robot is devised that provides a hollow body on the surface of the movable part of the robot, senses a change in pressure inside the robot when the hollow body is pressed upon cont...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L1/16B25J19/02B25J19/06H10N30/30
CPCB25J19/06G01L1/16B25J13/081H10N30/302H10N30/04H10N30/857B25J19/02H10N30/308B25J19/028B25J19/063B32B15/06B32B25/20B32B2307/202G05B19/048G05B2219/50198
Inventor 名取润一郎近藤玄章菅原智明荒海麻由佳今井崇寻宫泽秀之小田切瑞树
Owner RICOH KK
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