Adjustable Insertion Hand Tool with Pivoting Driving Portion
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Solution Overview
Problem
Existing hand tools have fixed orientations between the handle and head, limiting their usability in various work environments, as they cannot be conveniently adjusted to accommodate different screw types or orientations.
Innovation Solution
An insertion type hand tool with a pivotally installed connecting portion and an adjustably installed driving portion, featuring a combining groove and an elastic unit, allows the driving portion to be adjusted in two directions by resisting with flat and inclined sides, enabling flexible orientation adjustment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the head is fixedly installed to the handle, then the structure is simple and stable, but the adaptability to different work environments and screw types is limited
Solution Approach 1:
The hand tool is divided into three main segments: the handle, the connecting portion, and the driving portion. The connecting portion acts as an intermediate segment that pivots between the handle and driving portion, allowing independent adjustment of each segment to achieve various orientations and adapt to different work environments.
Solution Approach 2:
The connecting portion is designed with pivotal connections at both ends, transforming the fixed static structure into a dynamic adjustable structure. This allows the driving portion to rotate relative to the handle through the connecting portion, enabling adaptation to different screw types and work environments while maintaining structural simplicity.
2Adaptability or versatility
If the head pivots in one orientation only, then the structure is simple, but it cannot rotate along a different orientation, limiting replaceability
Solution Approach 1:
The adjustment mechanism is segmented into two independent rotational degrees of freedom: the first pivotal connection allows rotation in one orientation, while the second pivotal connection allows rotation in a different orientation. This segmentation enables multi-directional adjustment without requiring a complex single mechanism.
Solution Approach 2:
The connecting portion introduces an additional dimensional aspect to the adjustment capability. By adding the second pivotal connection that rotates in a different orientation, the system transitions from single-plane rotation to multi-plane rotation, enabling the driving portion to achieve various spatial orientations.
3Adaptability or versatility
If the bending angle between handle and head is fixed, then the structure is simple, but it is only suitable for specific work environments
Solution Approach 1:
The fixed bending angle is transformed into a dynamic adjustable angle through the pivotal connections. The connecting portion can rotate relative to both the handle and the driving portion, allowing the user to adjust the bending angle and orientation according to different work environment requirements.
Solution Approach 2:
The adjustment capability is extended from a single bending angle dimension to multiple orientation dimensions. The two pivotal connections enable rotation in different orientations, providing adjustability in multiple angular dimensions to suit various work environments.
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 design enhances the versatility of hand tools by allowing the driving portion to be adjusted to match different work environments and screw types, reducing the need for multiple tools and improving operational convenience.
Implementation Method 1
an elastic unit is installed in the engaging end of the driving portion so as to be positioned in a positioning hole of the connecting portion
Data Source
AI summary
An insertion type hand tool comprises a tool body having a handle and a connecting portion extended from the handle; the connecting portion having a combining groove; a driving portion having an engaging end corresponding to the connecting portion; at least one side of the engaging end being formed with an inclined side for resisting against the combining groove of the connecting portion so that the orientation of the driving portion is adjustable with respect to the connecting portion; one side of the engaging end near the driving portion having a flat side; the flat side being adjacent with an inclined side; and an elastic unit is installed in the engaging end of the driving portion so as to be positioned in a positioning hole of the connecting portion.