Contact detection device

Abstract

【Problem】To be able to increase the impact absorption capacity without causing damage. 【Solution】The contact detection device 1 includes a substrate 10 having a specific shape, a design body 20 having a specific shape made of a foamed synthetic resin material that is joined to the substrate 10 and covers the substrate 10, a flow sensor 40 that detects an external pressing force applied to a predetermined volume space 30 formed between the opposing substrate 10 and design body 20 as a physical change amount formed in the volume space 30, and an internal pressure rise suppressing means that is provided at the joint portion between the substrate 10 and the design body 20 and suppresses an increase in the internal pressure of the volume space 30, which consists of an air passage 56 formed between the substrate 10 and the design body 20 and a flap valve portion 55 formed in the design body 20 that can be opened and closed with respect to the air passage 56, and a pressure release portion 50 that releases the air in the volume space 30 by opening the flap valve portion 55 due to an increase in the internal pressure of the volume space 30 and communicating the volume space 30 with the outside through the air passage 56. 【Selected Drawing】Figure 6

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