Stripping Pliers Jaws With Interlocking Ribs for Variable Cable Diameters
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Solution Overview
Problem
Conventional wire strippers face challenges in effectively clamping and cutting cables of varying diameters due to inadequate design of clamping jaws and cutting edges, leading to inconsistent performance and potential damage to cables.
Innovation Solution
The design features clamping jaws with recesses of varying depths and dome-like elevations, and cutting edges with a contour line that includes a curved depression and straight sections, allowing for secure clamping and efficient cutting of cables across different diameters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional clamping jaws with uniform recess depth are used, then the structure is simple, but the positive connection between opposing clamping jaws is inconsistent for cables of different diameters
Solution Approach 1:
The recess base is designed with varying depths along its length, creating localized regions with different geometric properties. The dome-like elevation in the region of the bulge provides enhanced contact for smaller cables, while deeper recess areas accommodate larger cables, ensuring consistent positive connection across different cable diameters
Solution Approach 2:
A dome-like elevation with curved surface is introduced at the recess base in the region of the bulge. This curved geometry complements the concave bulge of the rib to form a spherical contact interface, ensuring reliable positive connection for cables of varying diameters through point or area contact
2Reliability
If cutting edges with simple geometry are used, then manufacturing is easier, but the cutting performance varies for cables of different diameters
Solution Approach 1:
The cutting edge features a depression in its contour line that creates a localized curved region. This depression allows the cutting edge to adapt to cables of different diameters by providing a curved contact surface that maintains consistent cutting geometry across varying cable sizes
Solution Approach 2:
The depression in the cutting edge contour line introduces a curved geometric feature that enables the cutting edge to conform to cylindrical cable surfaces of different radii, ensuring reliable cutting performance across the range of cable diameters
3Reliability
If ribs without bulges are used, then the clamping jaw structure is simpler, but the clamping of small diameter cables is inadequate
Solution Approach 1:
Concave bulges are introduced at specific locations along the ribs, creating localized regions with enhanced clamping capability. These bulges provide improved contact for small diameter cables without significantly increasing the overall structural complexity of the clamping jaw
Solution Approach 2:
The concave bulges on the ribs create curved surfaces that better conform to the cylindrical shape of small diameter cables, improving clamping effectiveness and stability for smaller cable sizes through enhanced surface contact
Data Source
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AI summary
The invention relates to gripper jaws (19, 20) for an insulation stripper (1), each jaw comprising a gripping surface (F) and an attachment extension (76), with ribs (81), which run transversely to a longitudinal direction of a cable (21) to be gripped when the gripping surfaces are fitted, being formed on the gripping surface (F), and comprising groove-like recesses (82) corresponding to the ribs and running between the latter, the recesses having a recess base (83). In order to further develop gripper jaws and in addition an insulation stripper having gripper jaws of this type to improve the ease of use, according to the invention when the gripper jaws (19, 20) are fitted, the ribs (81) can enter into the recesses (82) of the opposing gripper jaw (19, 20) in accordance with the thickness of the cable (21) to be gripped. The invention also relates to blades (24, 25) for an insulation stripper (1), the blades (24, 25) having, on their free ends that run into a blade tip (69) with an acute angle in cross-section, a contour line (70), which has a depression (71), when seen from a side view in which the contour line (70) forms the termination line of the blade (24, 25), the contour line (70) on an integrally formed blade (24, 25) being given and the depression (71), when seen from the side, appearing as a constantly curved line with an optionally first radius (a).