Rebar Binding Wire Feed Layout for Clear Loading Access
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Solution Overview
Problem
Reinforcing bar binding machines face constraints in arranging a housing unit for wire storage due to the presence of a displacement member and operation member in the feed path, hindering wire loading and requiring additional space.
Innovation Solution
A binding machine design with a housing unit that allows wire storage in a drawable manner, featuring a feeding unit with sandwiching feeding members and a displacement unit that intersects the feeding direction, eliminating the need for additional space and hindrances in the wire feed path.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a displacement member and operation member are provided between the feeding member and magazine to enable sandwiching of the wire, then the feeding members can be displaced to contact and separate, but this requires additional space that constrains the arrangement of the housing unit and creates obstructions in the wire feed path
Solution Approach 1:
The displacement unit is integrated into the feeding member structure itself, merging the displacement function with the feeding function. The first feeding member includes a displacement portion that can be pressed by the second feeding member, eliminating the need for separate displacement members and operation members, thus reducing spatial constraints while maintaining wire sandwiching capability
Solution Approach 2:
The displacement unit operates in a direction intersecting with the wire feeding direction, changing the dimensional orientation of the displacement mechanism. This allows the feeding members to displace laterally rather than linearly along the feed path, reducing obstructions in the wire feed path while enabling effective wire sandwiching
2Ease of operation
If the displacement member and operation member are placed in the feed path of the wire, then the feeding members can be operated, but this causes hindrance to wire loading and requires additional space
Solution Approach 1:
The operation function is merged into the feeding mechanism itself through the interaction between the first and second feeding members. The second feeding member presses the displacement portion of the first feeding member directly, eliminating the need for separate operation members that would occupy space in the feed path, thus maintaining clear wire loading access
Solution Approach 2:
The displacement operation occurs in a direction intersecting with the wire feeding direction rather than along the feed path. This dimensional change allows the feeding members to be operated without creating obstructions in the wire feed path, maintaining clear access for wire loading while enabling effective feeding member operation
Data Source
AI summary
A reinforcing bar binding machine (1A) includes a magazine (2A) in which a wire (W) is housed, a curl guide unit (5A) that winds the wire (W) around a reinforcing bar (S), a wire feeding unit (3A) that feeds the wire (W), and a binding unit (7A) that twists crossing portions between one end and the other end of the wire (W) wound around the reinforcing bar (S). The wire feeding unit (3A) is configured such that a second displacement member (36) for displacing a second feed gear (30R) is located behind a second feed gear (30L) and provided between the second feed gear (30L) and a handle portion (11A).