Modular Torque Wrench Handle With Locking Ring Assembly
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Solution Overview
Problem
Current torque wrench designs are inefficient in terms of production and assembly, lacking modularity and simplicity, which hinders cost-effective manufacturing and easy assembly of different torque wrench systems.
Innovation Solution
A modular torque wrench design featuring a handle and indicator body that can be coupled via a locking ring, allowing for the same handle to be used across various torque wrench systems, with the locking ring enabling secure engagement through a rotary movement and providing axial and radial locking, facilitating easy assembly and disassembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If traditional torque wrench designs are used, then the structure is integrated and functional, but manufacturing and assembly become complex and costly
Solution Approach 1:
The torque wrench is divided into separate modular components: a handle assembly and a display assembly that can be manufactured independently and then coupled together. This segmentation allows each component to be produced through standardized processes and simplifies assembly, directly addressing the contradiction between manufacturing efficiency and assembly complexity.
Solution Approach 2:
The handle assembly is designed as a universal component that can be coupled with different display assemblies to create various torque wrench systems. This multi-functionality reduces the total number of unique parts that need to be manufactured and assembled, improving manufacturing efficiency while reducing assembly complexity through standardization.
2Adaptability or versatility
If different torque wrench systems are produced with custom handles, then each system is optimized, but production costs increase and assembly becomes more difficult
Solution Approach 1:
By separating the handle and display into independent modular assemblies, the patent enables customized displays while using a standardized handle. This segmentation allows customization without increasing overall production complexity, as only the display assembly needs to be varied while the handle remains identical across systems.
Solution Approach 2:
The universal handle assembly serves multiple torque wrench systems with different display configurations. This universality maintains system customization capabilities while significantly reducing production costs through economies of scale and simplified manufacturing processes.
3Reliability
If a secure locking mechanism is implemented, then connection reliability improves, but the mechanism becomes more complex
Solution Approach 1:
The locking mechanism is designed to automatically engage and secure the handle and display assemblies together through the coupling process itself, without requiring additional manual locking steps. The interlocking geometry provides self-locking functionality that ensures connection reliability while minimizing mechanism complexity.
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 modular design enables cost-effective production and simpler assembly processes, allowing for the creation of different torque wrench systems using identical handles and indicator bodies, ensuring secure and reliable connections that withstand shock and impact loads.
Implementation Method 1
The coupling between the handle and the indicator body is achieved by means of a locking ring. The locking ring has locking elements that engage with the groove on the connecting sleeve and the counter-edges of the coupling segments to provide a locking connection.
Implementation Method 2
The locking element includes a pawl which is formed on a spring leg of the locking ring.
Data Source
Figure 1~3
Figure 2~4
Figure 5~6
AI summary
The invention relates to a torque wrench, which has a lever tube (3) having a handle (4) and has an indicating body (9) for indicating a set torque. The indicating body can be a scale housing or a scale sleeve. The handle (4) has a connecting piece (18), which points toward the indicating body (9) and which has a groove (19) on the outer periphery. Coupling segments directed toward the connecting piece (18) and having an abutment edge are provided on the indicating body (9). The handle (4) and the indicating body (9) are coupled by means of a locking ring (16). The locking ring (16) has blocking bodies for this purpose, which interact with the groove (19) on the connecting piece (18) and the abutment edges of the coupling segments in a locking manner. The torque wrench according to the invention is distinguished by the modular handle system thereof and enables economical production by means of structurally identical series together with simple assembly processes.