Clamp Arm Wedge Attachment Structure Without Dedicated Jigs
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Solution Overview
Problem
The existing clamping device requires dedicated jigs for both attaching and detaching the clamp arm, making these processes laborious and inefficient.
Innovation Solution
A structure featuring a recess on the clamp rod, an attachment hole on the clamp arm, and a wedge member that engages with the transmission member to secure the clamp arm to the rod without the need for external jigs, allowing easier attachment and detachment by adjusting the position of the clamp arm and using a tightening bolt to release the wedge engagement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a dedicated attachment jig is used to attach the clamp arm to the clamp rod, then the clamp arm can be securely attached, but the attachment process becomes laborious and complex
Solution Approach 1:
The patent extracts the attachment function from a separate dedicated jig and integrates it directly into the clamp rod structure through the recess and wedge member mechanism. The clamp rod itself becomes the attachment tool, eliminating the need for external jigs and simplifying the attachment process while maintaining secure connection.
Solution Approach 2:
The clamp rod structure provides its own attachment mechanism through the recess and wedge member, allowing it to secure the clamp arm without requiring external assistance or dedicated tools. The self-contained design enables the clamp rod to perform both its clamping function and the attachment function simultaneously.
2Reliability
If a dedicated detachment jig is used to detach the clamp arm from the clamp rod, then the clamp arm can be reliably detached, but the detachment process becomes laborious and complex
Solution Approach 1:
The patent extracts the detachment function from a separate dedicated jig and integrates it into the clamp rod structure. The recess and wedge member mechanism that was originally for attachment now serves dual purposes, allowing both attachment and detachment to be performed using the same integrated structure without external tools.
Solution Approach 2:
The clamp rod structure with the recess and wedge member serves multiple functions: it provides the clamping function, the attachment function, and the detachment function. This multi-functional design eliminates the need for separate dedicated jigs for both attachment and detachment operations.
3Reliability
If the clamp arm is tightly held using a dedicated attachment jig to prevent rotation, then secure attachment is achieved, but the device complexity increases
Solution Approach 1:
The patent merges the attachment mechanism with the clamp rod structure itself. The recess and wedge member are integrated into the clamp rod, combining the clamping function and attachment function into a single unified structure, thereby reducing overall device complexity while maintaining secure attachment.
4Force
If a nut is screwed over the external thread portion to bring the clamp arm into strong wedge engagement, then strong clamping force is achieved, but the attachment process becomes more time-consuming
Solution Approach 1:
The clamp arm is pre-configured with the recess and wedge member structure that enables direct wedge engagement with the clamp rod. This preliminary configuration eliminates the need for time-consuming sequential operations of fitting, holding, screwing nuts, and tightening, allowing the clamping force to be applied more quickly and efficiently.
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
This solution reduces the rotational torque required for attachment, eliminates the need for dedicated jigs, and enhances the strength of the clamp rod to handle bending moments, making the processes easier and less laborious.
Implementation Method 1
A wedge member 15 configured to be inserted in the accommodation hole 8 is shaped so as to taper narrower toward the base end side. At a time of attaching the clamp arm 3 to the clamp rod 2, the wedge member 15 is pressed using a tightening bolt 21 toward the base end side, and thereby the wedge member 15 presses the attachment hole 6 via the transmission member 10 and the clamp rod 2, and presses the accommodation hole 8.
Data Source
AI summary
A clamp rod (2) is inserted into a housing so as to be movable in a vertical direction. An attachment hole (6) is provided at a left end portion (3a) of a clamp arm (3), which is attachable to and detachable from the clamp rod (2). The attachment hole (6) passes through the left end portion in the vertical direction. An accommodation hole (8) is provided at a position to the upper right of the attachment hole (6). A transmission member (10) and a wedge member (15) configured to be brought into wedge engagement with the transmission member (10) from above are inserted into the accommodation hole (8). At the time of attaching the clamp arm (3) to the clamp rod (2), the wedge member (15) is pressed downward using a tightening bolt (21), and thereby the wedge member (15) presses the attachment hole (6) via the transmission member (10) and the clamp rod (2), and presses the accommodation hole (8).