Repositionable Guide Fence for Multi-Angle Wood Planing
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Solution Overview
Problem
Existing shooting boards are limited to planing wooden boards at only 90 degrees and are not ambidextrous, making them unsuitable for users who need to plane at different angles or those with a dominant hand opposite to the hand planer's position.
Innovation Solution
A shooting board jig device with a repositionable guide fence that can be secured at various angles within a 360-degree range, allowing a hand planer to be positioned on either side of the base plate, enabling planing at multiple angles and accommodating both left- and right-handed users.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a traditional shooting board with a fixed fence is used, then the structure is simple and easy to manufacture, but it only allows planing at 90 degrees and is not adaptable to different angles or handedness
Solution Approach 1:
The fence is made dynamically repositionable through a rotation mechanism with multiple indexed positions (15°, 30°, 45°, 60°, 75°, 90°). The fence can rotate along an axis perpendicular to the base, allowing it to adapt to different angles while maintaining structural support through indexing detents that lock at each position.
Solution Approach 2:
The shooting board is designed with universal adaptability by allowing the fence to be positioned on either the left or right side of the base plate, making it suitable for both left-handed and right-handed users. The rotation mechanism enables the same device to perform multiple functions across different angle requirements.
2Ease of operation
If a fixed fence design is used, then the device structure is simple, but it cannot accommodate left-handed or right-handed users flexibly
Solution Approach 1:
The fence transitions from a fixed position to a dynamically repositionable component that can be rotated to either the left or right side of the base plate. This dynamic positioning capability allows left-handed and right-handed users to configure the device according to their dominant hand, improving ease of operation.
3Adaptability or versatility
If the fence is made repositionable at multiple angles, then versatility is improved, but the device complexity increases
Solution Approach 1:
The fence incorporates a rotation mechanism that enables dynamic repositioning to multiple predetermined angles (15°, 30°, 45°, 60°, 75°, 90°). The indexing system provides automatic positioning and locking at each angle, maintaining operational simplicity despite the increased versatility.
Solution Approach 2:
The rotation mechanism is segmented into discrete indexed positions, allowing the fence to be positioned at specific angles rather than requiring continuous adjustment. This segmentation simplifies the mechanism by providing predetermined stopping points that are easily accessible and maintainable.
Data Source
AI summary
The present invention relates to a shooting board jig device. The device is comprised of a body having a base plate and a guide fence. The guide fence can be repositioned at a plurality of angles within a 360-degree range of movement atop the base plate and secured in said position via a pin. A hand planer known in the art can further be positioned along any side of the base plate. The generally L-shaped guide fence can then receive a board. The board is then placed towards the hand planer at the selected angle, such that the planar can be used to plane the edge or the end of the board. In this manner, the device allows a user to plane a board at a plurality of desired angles.