Adjustable Box Wrench with Segmented Link Mechanism
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Solution Overview
Problem
Most box wrenches are not adjustable, limiting their use to specific bolt or nut sizes and shapes, and existing adjustable options often fail to provide sufficient grip on all faces of the bolt or nut.
Innovation Solution
An adjustable box wrench design featuring a hollow body with tracks and sets of links guided by pins, where each set of links is detachable and can be adjusted using a scroll knob and switch to form a secure interface with bolts or nuts of various sizes and shapes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a sliding member is used to change the inner diameter of the box end, then the wrench becomes adjustable to different sizes, but the grip and contact on all side faces of the bolt or nut head becomes insufficient
Solution Approach 1:
The box end is divided into multiple independent links that can be selectively positioned. Each link can be independently adjusted to contact different faces of the bolt or nut head, ensuring comprehensive grip on all side faces while maintaining adaptability to various sizes through the selective engagement of different link configurations.
2Reliability
If the box wrench is designed for specific sizes only, then the grip on all side faces is sufficient, but the wrench cannot be used on multiple different sizes of bolts or nuts
Solution Approach 1:
The box wrench incorporates multiple sets of links that can be selectively engaged to create different box end configurations. This allows a single wrench to universally accommodate multiple sizes and shapes of bolts or nuts while maintaining reliable grip on all side faces through the proper engagement of the link sets with the fastener heads.
3Reliability
If multiple sets of links are added to provide comprehensive grip, then the grip on all faces is improved, but the device complexity increases
Solution Approach 1:
The link sets are designed to be movable and selectively positionable rather than fixed. The dynamic adjustment mechanism allows the user to reconfigure the links for different fastener sizes and shapes, providing comprehensive grip on all faces without requiring a separate wrench for each configuration. The spring-loaded pin enables quick transitions between different link arrangements.
Data Source
AI summary
The invention comprises an adjustable box wrench that can provide a more accurate grasp and/or sufficient grip/contact with the faces of the head of a bolt, nut, and/or similarly related objects. The invention comprises a series of pins and links which form a loop within a hollow body and are folded onto each other to form a tight gripping surface at the wrench's box ends. The invention may also contain slide-switches and/or scroll knobs to help actuate link closure or guide links within the chamber of the body until the desired set of links is within a box end.