Rebar Binding Gripper Layout for Compact Rotational Opening
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing reinforcing bar binding machines face challenges in miniaturization due to complex structures and require mechanisms for rotating gripping members, making them bulky and difficult to simplify.
Innovation Solution
A binding machine design featuring a pair of gripping members rotatably supported by a shaft, with a movable member that extends orthogonally to facilitate gripping and twisting of wires, allowing for compactness and simplicity by rotating the gripping members using a fitting portion and opening/closing shaft portion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the first movable gripping member and the second movable gripping member are opened and closed by parallel movement, then the gripping operation is simple, but the device dimension increases in lateral direction making miniaturization difficult
Solution Approach 1:
The patent transitions from parallel movement (one-dimensional lateral motion) to rotating movement (circular motion around a shaft). The movable gripping members rotate around a shaft extending in the wire feeding direction, converting the movement from lateral parallel displacement to rotational displacement, thereby reducing lateral dimension while maintaining gripping functionality.
2Volume of moving object
If the first movable gripping member and the second movable gripping member are opened and closed by rotating operation with a shaft as fulcrum, then miniaturization is possible, but a mechanism for rotating the gripping members is required making the structure complicated
Solution Approach 1:
The patent combines the rotation control of the first movable gripping member and the second movable gripping member into a single integrated mechanism. The moving member simultaneously controls both gripping members through a shared shaft and fitting portion configuration, eliminating the need for separate rotation mechanisms for each gripping member and simplifying the overall structure.
3Ease of operation
If a mechanism for rotating the gripping members is provided, then the gripping members can be opened and closed by rotation, but the structure becomes complicated
Solution Approach 1:
The moving member serves multiple functions: it controls the rotation of both the first movable gripping member and the second movable gripping member, and it transmits rotational motion through the fitting portion and shaft configuration. This multi-functional design eliminates the need for separate control mechanisms for each gripping member, reducing overall structural complexity while maintaining ease of operation.
Data Source
AI summary
A reinforcing bar binding machine includes a first movable gripping member that is displaced in a direction to come in contact with and separate from one side of a fixed gripping member. A second movable gripping member is displaced in a direction to come in contact with and separate from the other side of the fixed gripping member; and a bending portion brings the first movable gripping member and the second movable gripping member into and out of contact with the fixed gripping member. The fixed gripping member includes a shaft that rotatably supports the first movable gripping member and the second movable gripping member. In addition, the bending portion includes an opening and closing pin that pushes an opening and closing guide hole provided in the first movable gripping member and an opening and closing guide hole provided in the second movable gripping member.