Safety hook blade with ball tips and locking notches for carpet knives
The safety hook blade with spherical ends and locking notch enhances safety and ease of use by preventing blade penetration and secure fixation in utility knives, addressing the need for user-friendly safety features in cutting applications.
Patent Information
- Authority / Receiving Office
- DE · DE
- Patent Type
- Utility models
- Current Assignee / Owner
- Filing Date
- 2025-09-02
- Publication Date
- 2026-03-19
AI Technical Summary
Existing utility knives lack safety features to prevent unintentional penetration of blades into underlying materials or the user's skin during cutting operations, particularly when used in applications like cutting bituminous roofing membranes and PVC roofing membranes, and often require complex locking mechanisms that are not user-friendly.
A safety hook blade with spherical ends at its lower regions and a locking notch at the upper edge, combined with a central opening for additional locking, to enhance safety and ease of use.
The safety hook blade provides enhanced protection against blade penetration while ensuring secure fixation in utility knives, thereby improving user safety and ease of operation.
Smart Images
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Abstract
Description
[0001] The invention relates to a safety hook blade for utility knives, as used in particular for cutting bituminous roofing membranes, PVC roofing membranes, and in construction and flooring work. The hook blade (10) according to the invention has a spherical end (16) at each of its two lower end regions, which serve as a safety limit and prevent unintentional penetration into underlying materials or the user's skin. For secure fixation in standard utility knives, the hook blade (10) has a locking notch (22) at its upper edge. A central opening (24) serves for additional locking and material savings. The drawing shows a top view of the safety hook blade (10) with spherical ends (16), a locking notch (22), and a central opening (24). Reference symbol list 10 safety hook blades 16 Spherical end 22 Locking notch 24 Central Opening
Claims
[1] Hook blade (10) for utility knife or similar tools, characterized by , that the hook blade (10) has a spherical end (16) at each of its two lower end regions. [2] Hook blade (10) according to claim 1, characterized by , that the spherical ends (16) have a diameter between 0.5 mm and 3 mm. [3] Hook blade (10) according to claim 1 or 2, characterized by , that the spherical ends (16) are made of hardened steel, carbide or ceramic. [4] Hook blade (10) according to one of claims 1 to 3, characterized by that the hook blade (10) has at least one locking notch (22) on its upper edge. [5] Hook blade (10) according to any one of claims 1 to 4, characterized by , that the hook blade (10) has a central opening (24) for locking. [6] Hook blade (10) according to any one of claims 1 to 5, characterized bythat it is specifically designed for cutting bituminous roofing membranes and PVC roofing membranes.