Wire Gripper Composite Shaft and Spring Biasing
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Solution Overview
Problem
Conventional wire grippers used for tensioning wires are heavy due to robust metal shafts, making them difficult to use safely at high places, and the design restricts the size for inserting wires, leading to easy wire dislodgment.
Innovation Solution
A wire gripper with a swinging member attached rotatably to a stationary gripping body, featuring a biasing member and a swinging member restricting portion to control movement and maintain grip, allowing for a wider insertion size without increasing weight.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a robust metal shaft is used to attach the swinging member, then the strength and reliability are improved, but the weight increases making it difficult to use at high places
Solution Approach 1:
The shaft is constructed as a composite structure combining a metal tube providing structural strength and a lightweight foam material filling the interior, achieving both high strength-to-weight ratio and robust mechanical performance
Solution Approach 2:
The shaft design transitions from solid metal to a hollow composite structure with foam filling, changing the density and mass parameters while maintaining structural integrity through the tubular geometry and material combination
2Ease of operation
If the size for inserting the wire is made wide, then the ease of operation is improved, but the wire becomes easy to come off
Solution Approach 1:
The swinging member can dynamically swing forward during wire insertion to accommodate wide opening, then swings backward under spring biasing to automatically clamp and secure the wire, adapting the grip state to different operational phases
Solution Approach 2:
The spring-loaded biasing member provides beforehand cushioning force that automatically engages to prevent wire dislodgment after insertion, ensuring the wire is securely held without requiring excessive grip force during insertion
3Ease of operation
If the swinging member is allowed to swing freely, then the ease of operation for wire insertion is improved, but the wire may fall off due to excessive separation
Solution Approach 1:
The spring biasing member provides continuous feedback force on the swinging member, automatically adjusting the grip state based on wire insertion status and preventing excessive separation that would cause wire drop
Solution Approach 2:
The stopper structure provides preliminary anti-action by physically limiting the backward swing of the gripping piece, preventing excessive separation before it can occur and ensuring wire retention
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution provides a lightweight wire gripper that securely holds tensioned wires, enabling easy and safe operation at high places by restricting swinging movement and maintaining grip effectively.
Implementation Method 1
a spring (110) which biases the swinging member (14) in a direction in which the movable gripping body (16) moves toward the stationary gripping body (12)
Data Source
Figure 1
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AI summary
A wire gripper which is lightweight and can perform a work for holding a gripped state of a tensioned wire easily and safely. A wire gripper 10 of the present invention is provided with a stationary gripping body 12 having a wire-like body pressing-down portion 24; a swinging member 14 swingably attached to the stationary gripping body by a supporting shaft; a movable gripping body 16 having a wire-like body holding portion; a connection member 18 swinging the swinging member; and a swinging member restricting portion 20 restricting an amount of swinging of the swinging member, wherein the stationary gripping body 12 is formed with reinforcing portions 32 and 40 in a region in which a supporting shaft 70 for attaching the swinging member is attached, and a wire-like body W clamped between the movable gripping body 16 and the stationary gripping body 12 does not come off from between the movable gripping body 16 whose movement amount is restricted by the swinging member restricting portion 20 and the stationary gripping body 12.