摘要 |
A safety utility razor knife is normally maintained in a locked closed condition which protects the user or carrier from accidental injury by the blade. No action on the part of the user or carrier is required to lock the protective hood over the blade. The hood pivots into the open position, exposing the razor blade, when the knife is in use, and automatically self-locks the safety hood immediately after use, requiring no action or adjustment on the part of the user. The knife is designed for easy and convenient use in cutting cartons, and other materials, including but not limited to dry wall, floor coverings, and insulation, etc. The hood is unlocked by the user's thumb by moving a slide forward. The amount of blade exposed may be determined by a hood stop on the shoulder of the knife, or as regulated by the depth of cut cam action dial. This insures that only enough blade is exposed for the task at hand, i.e. when cutting a carton containing cereal boxes, only enough blade to cut the carton without damage to the cereal boxes is exposed. In addition, provisions may be made to control the depth of cut which is made by the safety utility razor knife.
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