JPH049987Y2 - - Google Patents

Description

[Detailed Description of the Invention] Purpose of the Invention (Field of Industrial Application) This invention relates to a sheathed knife that is capable of cutting wire and the like.

(Prior Art) Conventionally, there has been no knife that has the ability to cut wire or the like.

However, especially when camping requires both a knife and a wire cutter, it is necessary to prepare both a knife and pliers or nippers, which is inconvenient.

(Problems to be solved by the invention) This invention was made in view of the above-mentioned problems, and the purpose of this invention is to provide a sheathed knife with the function of safely cutting wire, etc. .

Structure of the invention (means for solving the problem) In this invention to solve the above problem, a shaft hole is provided in either the tip of the sheath body or the tip of the blade body, and a shaft hole is provided in the other. A support shaft rotatably engaged with the shaft hole is provided, a groove into which a wire or the like can be inserted is formed on a side surface of the sheath body on the distal side of the position where the support shaft or shaft hole is provided, and A sheath side cutting blade is provided in the groove, and when the sheath body and the blade body are relatively rotated about the support shaft, the blade side A cutting blade is provided, and the sheath body is further provided with a stopper for preventing more than necessary relative rotation between the sheath body and the blade body.

(Function) The sheathed knife of this invention engages a spindle provided on either the sheath body or the blade body with a shaft hole provided on the other, and inserts a wire, etc. into the groove provided on the sheath body. When the sheath body and the blade body are rotated relative to each other about the spindle in the direction in which the proximal end of the sheath body and the handle approach each other from this state, the sheath body side cut provided in the groove Wire, etc. can be easily and reliably cut without applying force by the blade and the cutting blade on the blade side provided at the tip of the blade body corresponding to the cutting blade on the sheath side. It comes into contact with a stopper provided on the sheath body, thereby preventing more than necessary relative rotation between the sheath body and the blade body.

(Example) Hereinafter, an example that embodies this idea will be described.
This will be explained according to Figure 4. The knife body 1 is composed of a handle 2 and a blade body 3, and the blade body 3 has a blade portion 3a formed on its ventral side and saw teeth 3b formed on its back side. Further, a tsuba 6 is provided at the tip of the handle 2, and a ring portion 6 is provided at the end of the tsuba 6 on the back side of the blade 3.
a is integrally formed. A rope can be tied to the ring portion 6a, or a rod can be inserted and attached thereto, and the rope can be pulled or the knife body 1 can be tightened.
It is useful when used as a spear.

Near the tip of the blade body 3, an elongated shaft hole 4 is provided in the longitudinal direction of the blade body 3, and on the back side of the tip portion of the blade body 3, a shaft hole 4 is formed in the longitudinal direction of the blade body 3 and in the longitudinal direction. Cutting blades 5a and 5b as blade body-side cutting blades are provided continuously in a direction that is inclined to the direction of the blade.

A leaf spring (not shown) is provided inside a sheath body 8 made of synthetic resin for storing the blade body 3, and holds the blade body 3 so that it cannot be removed. A water drain hole 10 is formed.

A groove 9 is formed on one side of the distal end of the sheath body 8, and a metal plate 1 is formed on the upper surface of the distal end of the sheath body 8.
1 are provided so that they are flush with each other. This metal plate 11 is caulked to the sheath body 8 by a pair of pins 12 on the proximal end side, and a bolt 17 and a nut (not shown) as a stopper on the distal end side.
The pin 12 is tightened and fixed by the metal plate 1.
1. It is caulked so that it does not protrude from the top surface.
A washer is interposed between the caulking head of the caulking pin 12 and the sheath pair 8 on the other side of the sheath body 8 . A cutout recess 13 having the same shape as the groove 9 is formed in the metal plate 11 at a position corresponding to and overlapping with the groove 9, and the bolt 1 on the bottom wall of the groove 9 is formed in the metal plate 11.
A cutting blade 14 as a cutting blade on the sheath body side is formed on the upper edge of the corner on the 7 side, and a notch recess 1
Notch recess 1 that continues from the opening of 3 to the cutting blade 14
The side wall of No. 3 is chamfered 13a. The metal plate 11 has a support shaft 15 rotatably engaged with the shaft hole 4 on a straight line in the longitudinal direction of the sheath body 8 passing through the bolt 17 and at a position closer to the proximal end than the notch recess 13. At the tip of the support shaft 15, a retaining portion 15 of the same shape and slightly larger than the shaft hole 4 is provided.
a is oriented in a direction substantially perpendicular to the straight line connecting the support shaft 15 and the notch recess 13 . The gap distance between the upper surface of the metal plate 11 and the lower surface of the retaining portion 15a is set to be approximately the same as the thickness of the blade body 3. In addition,
A driver portion 16 is integrally formed in a protruding manner at the tip of the metal plate 11.

Next, the operation of the sheathed knife constructed as above will be explained. Holding the sheath body 8 and handle 2, fit the support shaft 15 into the shaft hole 4 as shown in FIG. 2, and engage the knife body 1 by pulling it in the direction of arrow P in FIG. 2 or pushing it in the direction of arrow Q. . Thereafter, as shown in FIG. 3, the wire W is inserted into the notch recess 13 and positioned on the corner side of the cutting blade 14, and the proximal end of the sheath body 8 and the handle 2 are moved in a direction closer to each other. The support shaft 1
When the wire W is relatively rotated about the center point 5, the wire W is cut out by the cooperation of one of the cutting blades 5a and 5b on the blade body 3 side and the cutting blade 14 provided in the notch recess 13 formed on the sheath body 8 side. It is cut without coming off from the recess 13. Then, after the wire W is cut,
As shown in FIG. 4, the cutting blade 5a of the blade body 3 hits the head of the bolt 17, and relative rotation between the sheath body 8 and the knife body 1 is prevented.

In this invention, by simply engaging the shaft hole 4 and the support shaft 15 and rotating them in the direction in which the proximal end of the sheath body 8 and the handle 2 approach, the cutting blade on the blade body 3 side can be
A, 5b cooperate with the cutting blade 14 provided in the notch recess 13 formed on the sheath body 8 side, so that the wire etc. can be cut without coming off from the notch recess 13, which is convenient and safe.

In addition, in this embodiment, the lengths of the proximal end of the sheath body 8 and the handle 2 as the point of force, and the length of the support shaft 15 as the fulcrum are the same as that of the support shaft 15 and each cutting blade 5 as the point of action.
Since it is considerably longer than the lengths of a, 5b, and 14, wires and the like can be easily cut without using force. The head of the bolt 17 also serves as a stopper to prevent the blade 3 and sheath 8 from rotating more than necessary when they are rotated relative to each other, so there is no need to worry about getting your hands or fingers injured by the blade 3a. do not have. Further, even if the head of the bolt 17 becomes damaged due to long-term use, it can be easily replaced, and injuries caused by the head of the bolt 17 being missing can be prevented. A chamfer 13a is formed on the side wall of the cutout recess 13 on the side of the cutting blade 14, eliminating corners that are likely to get caught with the cutting blades 5a and 5b, allowing the blade body 3 and sheath body 8 to smoothly rotate relative to each other. be able to. After the shaft hole 4 is inserted into the support shaft 15, when the blade body 3 is pushed in the direction of the arrow Q in FIG. Since the gap becomes larger when the wires are made parallel, it is also possible to cut particularly thick wire.

Note that this invention is not limited to the above embodiments. Although the sheath body 8 is made of synthetic resin in the above embodiment, it may be made of wood, metal, or the like. Sheath body 8
If it is made of metal, insert the cutting blade 1 directly into the groove 9.
4 may be formed. Further, although the head of the bolt 17 is used as the stopper, a nut may be used, or a caulking pin with a large head or a metal plate 11 may be used as the stopper.
You may also use one that is integrally formed with. Further, the shape of the groove 9 formed in the sheath body 8 can be changed as appropriate. Furthermore, in the above embodiment, the blade body 3 has a shaft hole 4,
Although the sheath body 8 is provided with the support shaft 15, the blade body may be provided with a support shaft and the sheath body may be provided with a shaft hole. However, in this case, it is necessary to form the sheath body 8 so that the blade body with a spindle can be accommodated therein.

Although not directly related to this invention, if a tongue piece 6b is attached to the inner peripheral side of the proximal end of the ring 6a as shown in FIG. 5, it can also be used as a bottle opener.

Effects of the Invention As detailed above, the sheathed knife of this invention can be used by simply engaging the shaft hole and the support shaft and rotating them in the direction in which the sheath body and handle approach each other. By working together with the cutting blade on the sheath side, it is possible to reliably cut the wire, etc., without causing it to separate from the groove, and it is possible to cut the wire etc. reliably without separating it from the groove. Since the length is considerably longer than the length between the support shaft and each cutting blade that acts as the point of action, it is possible to easily cut wire, etc. without using force, and after cutting, the blade side can be cut. The blade comes into contact with the stopper and prevents unnecessary relative rotation between the sheath body and the blade body, so you can safely cut wire etc. without cutting your fingers with the blade part of the blade body. It is an extremely useful and novel knife that does not require separate pliers or nippers.

[Brief explanation of the drawing]

Figures 1 to 4 show an embodiment of this invention, in which Figure 1 is a perspective view showing the blade housed in the sheath, and Figure 2 is a perspective view showing the shaft hole as the support shaft. Fig. 3 is a plan view showing the state in which the wire etc. is cut, Fig. 4 is a plan view showing the state after cutting the wire etc., Fig. 5 is another example of the tsuba. It is a partially omitted perspective view showing. The blade body is 3, the shaft hole is 4, the cutting blades as the blade side cutting blade are 5a, 5b, the sheath body is 8, the groove is 9, the cutting blade as the sheath body side cutting blade is 14, the spindle is 15, the stopper As for the bolt, it is 17.

Claims (1)

[Claims for Utility Model Registration] A shaft hole 4 is provided on either the tip of the sheath body 8 or the tip of the blade body 3, and a support shaft 15 rotatably engaged with the shaft hole 4 on the other side. A recessed groove 9 into which a wire or the like can be inserted is formed on the side surface of the sheath body 8 on the distal side of the position where the support shaft 15 or the shaft hole 4 is provided, and a sheath side cut is formed in the recessed groove 9. A blade 14 is provided, and on the other hand, when the sheath body 8 and the blade body 3 are relatively rotated about the support shaft 15, a blade body side cutting blade is provided at the tip of the blade body 3 corresponding to the sheath body side cutting blade 14. 5
a, 5b, and the sheath body 8 is further provided with a stopper 1 for preventing more than necessary relative rotation between the sheath body 8 and the blade body 3.
A knife with a sheath that is characterized by having 7 points.