Sticking Thermometer Side Switch to Prevent Accidental Pressing

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Solution Overview

Problem

Current sticking-type thermometers can experience erroneous operation of the power supply switch when attached to the body surface, due to the switch protruding and being accidentally pressed, leading to unintended malfunctions.

Innovation Solution

The design incorporates an operation switch that receives input forces parallel to the body surface, preventing accidental activation from perpendicular forces, with the switch housed in a manner that ensures only side-based operation is possible, thus preventing erroneous operations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the power supply switch is disposed on the top surface of the thermometer, then the switch is easily accessible for operation, but the switch protrudes from the body surface and may be erroneously pressed causing unintended operations

Engineering Contradiction:
Improveaccessibility of power supply switchVSAvoiderroneous operation prevention
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The operation switch is repositioned from the top surface to the side surface of the exterior body, changing the spatial dimension of access. This allows the switch to remain accessible while no longer protruding perpendicular to the body surface, thereby preventing erroneous pressing during prone positioning or contact with external objects.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Ease of operation

If the operation switch receives input forces in perpendicular direction, then the switch can be activated by pressing, but the switch may be accidentally pressed when lying in prone position or contacted by shoulder strap

Engineering Contradiction:
Improveswitch activation capabilityVSAvoidaccidental pressing from external forces
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The operation switch is configured to respond only to forces applied in a specific direction (parallel to the sticking member surface), while being insensitive to forces from other directions (perpendicular to the surface). This directional sensitivity is achieved through the switch's mechanical structure that only actuates when pushed from the side, not from above or below.

Inventive Principle:
Principle #3Local quality

3Reliability

If the operation switch is disposed inside the exterior body, then the switch is protected from erroneous operation, but the switch may not be easily accessible for operation

Engineering Contradiction:
Improveprotection from erroneous operationVSAvoidaccessibility of operation switch
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The side surface of the exterior body serves as an intermediary interface, allowing the operation switch to be positioned inside the body (protected from erroneous operation) while remaining accessible through the side surface. The side surface acts as a mediator that provides both protection and access, resolving the contradiction between internal positioning and external accessibility.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentUS12163846B2Sticking-type device for living body
Publication Date: 2024.12.10 MURATA MFG CO LTD
  • US12163846B2 patent drawing
  • US12163846B2 patent drawing
  • US12163846B2 patent drawing

AI summary

A deep body thermometer includes an upper exterior body including a foamed material of closed cells or semi-closed cells having waterproof properties and that is in a substantially hat-like shape in a side view, a lower exterior body having a peripheral edge in close contact with the upper exterior body, a sticking member that has adhesiveness and one surface that is stuck to an outer side surface of the lower exterior body, a wiring substrate housed in an accommodation space defined by the upper and exterior bodies, and an operation switch electrically connected to the wiring substrate. The operation switch receives an operation input in which an input direction of operation force is substantially parallel to the sticking member and does not receive an operation input in which an input direction of operation force is substantially perpendicular to the sticking member.