Manual knife for preventing blade from falling off by accident

A manual knife and blade technology, applied in the field of manual knife, can solve the problems of falling safety and hidden dangers

Active Publication Date: 2013-03-27
ZHEJIANG JUXING TOOL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved and the technical task proposed by the present invention are to overcome the defect of the existing three-stage manual knife that the blade may fall off from the cutter head in the non-expanded state, which may cause potential safety hazards, and provide a method to prevent the blade from being accidentally opened in the non-expanded state. Falling Manual Knife

Method used

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  • Manual knife for preventing blade from falling off by accident
  • Manual knife for preventing blade from falling off by accident
  • Manual knife for preventing blade from falling off by accident

Examples

Experimental program
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Embodiment Construction

[0025] The present invention will be further described below in conjunction with the accompanying drawings of the description.

[0026] The present invention prevents the manual knife from accidentally falling off the blade, such as Figure 1-4 shown in (Example 1) and Figure 5-13 As shown (Example 2), it includes a knife handle 11 / 21, a knife head 12 / 22, and a blade 13 / 23 (the three appear as three sections in the unfolded state, which can be referred to as a three-section manual knife), and the knife head 12 / 22 is assembled on the knife handle 11 / 21 through the pivot 14 / 24 and can rotate around the pivot 14 / 24 so as to be folded and unfolded. The blade 12 / 22 is locked on the cutter head 12 / 22 by the blade lock 15 / 25. Detachable, the blade lock 15 / 25 is in the locked position in the natural state to lock the blade to realize the assembly on the cutter head, and it deviates from the locked position to the unlocked position when the external force is applied to remove the bl...

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PUM

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Abstract

The invention discloses a manual knife for preventing a blade from falling off by an accident, and belongs to a manual tool. The blade of the existing three-stage manual knife possibly falls off from a tool bit in a folded state, resulting in potential safety hazards. A control element acting along with state change of the tool bit is assembled on the tool bit of the manual knife; the control element is at a forbidden position when the tool bit deviates from the unfolded state; the control element at the forbidden position forbids a blade lock to act, so that the blade lock cannot be operated to unlock the blade; the control element is at an unlocked position when the tool bit is in an unfolded state; and the control element at the unlocked position releases prohibition to the blade lock, so that the blade lock can be operated to unlock the blade. Thus, the situation that the blade is prevented from falling off by the accident in the folded state can be avoided; the potential safety hazards are removed, and the blade cannot drop or be lost.

Description

technical field [0001] The invention belongs to manual tools, in particular to a manual knife which prevents the blade from accidentally falling off in a non-expanded state, thereby eliminating some potential safety hazards in use. Background technique [0002] Existing manual knives (referred to as three-stage manual knives) including a handle, a knife head connected to the knife handle through a pivot, and a detachable blade assembled on the knife head (referred to as a three-stage manual knife). Whether the head is in the unfolded state or the folded state, the blade can be disassembled (especially removed) from the cutter head by operating the blade lock. Therefore, in the non-expanded state (folded state or from the unfolded state to the folded state) conversion), there is a possibility that the blade may fall off from the cutter head due to accidental contact with the blade lock, causing a safety hazard and affecting subsequent use due to the loss of the blade. Conte...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B26B1/04B26B5/00
Inventor 王伟毅
Owner ZHEJIANG JUXING TOOL
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