Switch Mounting Device Claw Parts Terminal Fixation

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Solution Overview

Problem

Conventional push switches experience irregularities in electrical connections between terminals and terminal members, leading to operational failures due to play in the switch, which can result in the switch not functioning as intended when pressed.

Innovation Solution

A switch mounting device with a resin seat featuring claw parts on its lower surface, allowing terminal members to be fixed by sliding along the surface, ensuring stable electrical connections between the terminal members and connection terminals without the need for additional members, and a push switch design where the terminal members are secured by these claw parts, facilitating reliable operation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If terminal members are simply mounted on the lower surface of the seat, then the assembly process is simple, but irregularities occur in electrical connection and play in the switch leads to operational failures

Engineering Contradiction:
Improveassembly simplicityVSAvoidelectrical connection stability
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The seat is divided into functional regions with claw parts that segment the terminal member positioning. The claw parts create discrete engagement points that secure terminal members individually, preventing collective displacement while maintaining assembly simplicity through integrated molding.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The terminal members are secured by adding a lateral dimension constraint through claw parts that engage from the sides. This transforms the mounting from a simple surface placement to a three-dimensional engagement where claw parts wrap around and secure the terminal members, eliminating play in multiple directions.

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

2Reliability

If terminal members are securely fixed to prevent displacement, then electrical connection reliability improves, but the device structure becomes more complex

Engineering Contradiction:
Improveelectrical connection stabilityVSAvoidmounting structure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The claw parts are merged with the seat structure through integral molding, combining the securing function into the existing seat component. This eliminates the need for separate mounting brackets or additional fastening mechanisms, reducing overall device complexity while maintaining secure terminal member fixation.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The claw parts are designed to automatically engage and secure terminal members through their inherent elastic deformation capability. The resilient nature of the claw parts allows them to self-adjust and lock terminal members in place without requiring additional adjustment mechanisms or complex assembly steps.

Inventive Principle:
Principle #25Self-service

3Reliability

If claw parts are used to fix terminal members by sliding, then electrical connection reliability improves and assembly efficiency increases, but the seat structure becomes more complex

Engineering Contradiction:
Improveterminal fixation stabilityVSAvoidseat structure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The claw parts utilize elastic deformation parameters to achieve secure engagement. By designing the claw parts with appropriate material properties and geometric parameters, they can deform elastically during the sliding assembly process and then maintain a secure lock on the terminal members, providing reliable fixation through material parameter optimization rather than complex structural design.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS10637167B2Switch mounting device and push switch
Publication Date: 2020.04.28 TOKYO PARTS IND CO LTD
  • US10637167B2 patent drawing
  • US10637167B2 patent drawing
  • US10637167B2 patent drawing

AI summary

A switch mounting device comprises: a resin seat having an upper surface and a lower surface; a switch mounted on the upper surface of the seat; and terminal members fixed to the lower surface. The seat has claw parts on the lower surface thereof. The switch has a main body part, which is operated by pressing in the X direction, and connection terminals extending downward from this main body part. With connection terminals led out to the lower surface of the seat, the connection terminals are electrically connected to the terminal members. The terminal members are fixed to the seat by the claw parts by way of being slid along the lower surface of the seat.