Cutter sheath with slip-off prevention means

JP2025035955AActive Publication Date: 2025-03-14KANESHIGE KNIVES CO LTD
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Patent Information

Application Number
JP2023159222
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2023-09-04
Publication Date
2025-03-14
Estimated Expiration
2043-09-04

AI Technical Summary

Benefits of technology

【0008】 本発明においては、鞘に収められた刃物が磁石側に吸い寄せられることにより、刃物を鞘から引き出そうとしても係止部21に引っ掛かかることにより簡単に抜け落ちなくてすむ。

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Abstract

To provide a cutter sheath capable of preventing the cutter from slipping off therefrom, which is free of a risk for a user to lose the pin used conventionally to be inserted into a pin hole penetrating through the whole sheath to fix the sheath.SOLUTION: A cutter sheath 2 with slip-off prevention means comprises: a tabular magnet 22 embedded in one side of an interior of the cutter sheet; and a salient locking part 21 provided on the same side as the magnet 22 and in front of a root 14 of a cutter inserted in the sheath. The cutter sheath is characterized in that, when the cutter is inserted into the sheath, the cutter is attracted by the magnet 22, and when the cutter is about to slip off, the root 14 of the cutter comes into contact with the locking part 21 so as not to allow the cutter to slip off from the sheath.SELECTED DRAWING: Figure 1
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Description

[Technical field]

[0001] The present invention relates to a sheath for safely securing and storing a blade without attachments such as pins. [Background technology]

[0002] In Japan, wooden (magnolia) sheaths have almost always been used to store individual knives, and for this reason, there are many requests from enthusiasts of domestically made knives for the traditional magnolia sheath. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Public Practical Use Showa 57-191256 Summary of the Invention [Problem to be solved by the invention]

[0004] Conventional sheaths have an inner shape that matches the shape of the blade, as shown in Figure 2. Therefore, in order to secure the blade in the stored position, as shown in Figure 2, a pinhole 23 that passes through the entire sheath is provided, and a rod-shaped object (pin) is inserted and secured in place so that the base 14 of the blade comes into contact with the pin, preventing it from falling out. However, there has been an issue with users of the blade losing the pin.

[0005] Additionally, at the manufacturing stage of the scabbard, there were issues such as rising costs due to the increasing number of parts, and because the pins are often outsourced to partner factories overseas, such as in China and Taiwan, transportation is dependent on the situation overseas, resulting in significant delays in delivery. [Means for solving the problem]

[0006] This sheath for a blade with a stopper is characterized in that it has a flat magnet 3 embedded on one side of the inside of the sheath 2 of the blade, and a protruding locking portion 21 on the same side as the magnet 3, just before the base 14 of the blade inserted into the sheath, so that when the blade is inserted into the sheath, the blade is attracted by the magnet 3, and when the blade tries to be removed, the base 14 of the blade abuts against the locking portion 21, preventing the blade from being removed from the sheath.

[0007] The height of the protruding engagement portion 21 of the sheath for a blade with a retaining function is 0.5 to 3 times the thickness of the blade. Effect of the Invention

[0008] In the present invention, the blade stored in the sheath is attracted to the magnet, so that even if an attempt is made to pull the blade out of the sheath, it will not easily fall out because it is caught by the locking portion 21. [Brief description of the drawings]

[0009] [Figure 1] The sheath of the blade with the anti-slip feature of the present invention [Diagram 2] Conventional anti-slip sheath structure DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] The structure of a sheath for a kitchen knife as an example of a blade with a retainer of the present invention will be described with reference to FIG. The blade sheath with anti-slip function includes a flat magnet 3 embedded on one side of the inside of the blade sheath 2, and a protruding locking part 21 on the same side as the magnet 3, in front of the base 14 of the blade inserted in the sheath. When the blade is inserted into the sheath, it is attracted by the magnet 3, and when the blade tries to be removed, the base 14 of the blade abuts against the locking portion 21, preventing the blade from being removed from the sheath.

[0011] The size of the flat magnet depends on the strength of the magnet and the material of the blade; for example, for a 7-inch chef's knife, a neodymium magnet of 16 to 20 square centimeters would be appropriate. The shape of the magnet may be square, rectangular, polygonal, or circular, and not only one magnet but multiple magnets may be installed in a dispersed manner. The magnet may be installed anywhere on the same side as the locking portion 21 according to the shape of the knife and other circumstances. When removing the blade from the sheath, the blade should be first pulled away from the whetstone 3 so that no part of the blade gets caught on the locking portion 21. By slightly twisting the blade inserted in the sheath, the blade will separate from the magnet, making it easier to remove. If the height of the protruding engaging portion 21 is about 0.5 to 3 times the thickness of the blade, it will easily catch on the base of the blade, making it difficult to remove, and also making it easier to remove the blade by twisting it. [Industrial Applicability]

[0012] To provide a safe sheath for a blade, which can prevent the blade such as a kitchen knife from falling out when the blade is stored in the sheath. [Explanation of symbols]

[0013] 1. Knives 12 Patterns 13 Blades 14 Base 2 Scabbard 21 Locking part 22 Magnet 23 Pin hole

Claims

1. This blade sheath with anti-slip feature comprises a flat magnet 3 embedded on one side of the inside of a sheath 2 for a blade, and a protruding locking portion 21 on the same side as the magnet 3 and in front of a base 14 of the blade inserted into the sheath, so that when the blade is inserted into the sheath, the blade is attracted by the magnet 3, and when the blade tries to be removed, the base 14 of the blade abuts against the locking portion 21, preventing the blade from being removed from the sheath.

2. 2. The sheath for a blade with a retainer according to claim 1, wherein the height of said protruding engaging portion (21) is 0.5 to 3 times the thickness of the blade.

Citation Information

Patent Citations

  • JP1982191256U