JP3538687B2 - Knife sheath - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention is, be an example of the knives and knife
The blade part of the blade
To the present invention relates to cutlery sheath for achieving safety.

[0002]

2. Description of the Related Art Most knives such as knives and knives have a structure comprising a blade portion and a grip portion as shown in FIG. 7, for example. Since it is dangerous to do so, a so-called blade sheath for enclosing the blade has been proposed. The sheath for a knife as shown in FIG. 7 has the most basic structure and is generally used.

[0003] In the blade sheath of the basic form as shown in FIG. 7, the danger of the blade portion can be eliminated, but a new problem has arisen. First, when the cutter 30 is inadvertently moved by holding only the cutter sheath, the cutter 30 falls out of the sheath, and in some cases, the cutter 30 falls toward the foot and is injured. Second, the jaw 33 is formed near the grip 32 on the blade 30,
When the finger was pulled near the insertion slot of the blade sheath and the blade 30 was pulled out, the jaw portion 33 could injure a finger.

For this reason, the applicant has proposed a sheath for a knife as shown in FIG. In other words, the blade sheath shown in FIG. 8 removes the danger of the jaw portion 33 by completely wrapping the jaw portion 33 by the grip portion 32 and fits the inner end side of the grip portion 32. The insertion port on the sheath side is formed slightly smaller so as to be able to be stopped, so that the sheath is prevented from being accidentally dropped off from the cutter 30. In FIG. 8, a thumb pad is formed immediately above the insertion port of the sheath to facilitate the pulling out of the sheath, and the thumb pad of the hand holding the grip portion 32 is pressed. Thus, the sheath can be easily removed.

[0005] The above-mentioned first and second problems have been solved by the above, but other problems have arisen in the future. In the blade 30, it is natural that the blade is cut by the blade portion 31.
When making small work while holding 0 in hand, jaw part 33
However, the jaw portion 33 has been completely eliminated from the blade 30 using the sheath shown in FIG. Small work is, for example, taking potato buds or removing the rotting parts remaining on the surface of peeled ones.
In order to use a blade 30 having no jaw 33 as shown in FIG. 8, the only option is to use the cutting edge of the blade 31. When trying to use the cutting edge, the cutting tool 30 is held while holding the gripper 32.
, Or by holding the blade portion 31 with a hand, which is dangerous in either case.

The inventor of the present invention has conducted various studies on how to make the blade 30 unnecessary to remove the jaw portion 33 and to make the sheath for the blade very safe in use. The invention was completed.

[0007]

DISCLOSURE OF THE INVENTION The present invention has been made in view of the above situation, and the problem to be solved is to provide a safer and more convenient to use tool, and to further reduce the jaw 33 of the blade 30. An object of the present invention is to provide a knife sheath that does not need to be eliminated.

In other words, the object of the present invention is not to say that the danger caused by the blade portion 31 of the blade 30 can be eliminated, and that the safety of the blade 30 having the jaw portion 33 can be reduced. An object of the present invention is to provide a sheath for a knife which can be secured and which is not difficult to use by a simple structure.

[0009]

In order to solve the above problems BRIEF SUMMARY OF THE INVENTION blade means taken the present invention, including when explaining by reference numeral used in the examples, the jaw portion 33 of the "knives 30 A knife sheath 100 for accommodating the part 31;
The blade sheath 100 comprises an inner sheath 10 having a storage portion 11 for housing the entire blade portion 31 and an outer sheath 20 for accommodating the inner sheath 10 so that it can be moved in and out. A contact portion 12 with which a jaw portion 33 abuts is formed at an outer end of the inner sheath 10, and a blade portion 31
A sheath 100 for cutting tools, characterized in that an opening 13 for performing insertion / removal of a blade is formed.

That is, the sheath 100 for a knife according to the present invention.
First, it is necessary to have an inner sheath 10 for accommodating the blade portion 31 including the jaw portion 33 in the accommodating portion 11 and an outer sheath 20 for accommodating the inner sheath 10 so as to be able to enter and exit. is there. The reason is that when the blade 30 is taken out from the blade sheath 100, as shown in FIG. 1, the outer sheath 20 is gripped with one hand and pulled out while holding the grip portion 32 of the blade 30. The blade 31 and the jaw 33 of the blade 30
This is because it is necessary to prevent the blade section 31 and the jaw section 33 from being injured by keeping the inside wrapped by the inner sheath 10.

[0011] Further, the blade sheath 100 has an inner sheath 1.
It is necessary to form an abutting portion 12 with which the jaw portion 33 abuts on the outer end of the inner sheath 0 and to form an opening 13 for inserting and removing the blade portion 31 on the upper surface of the storage portion 11 of the inner sheath 10. However, the reason is that when the blade 30 is pulled out, the jaw portion 33 is brought into contact with the contact portion 12 on the inner sheath 10 side to ensure that the inner sheath 10 is pulled out, and that the pulled out inner sheath 10 This is because it is necessary to allow the blade portion 31 of the blade 30 to be easily taken out from the opening 13.

[0012]

In the blade sheath 100 constructed as described above, the inner sheath 10 forms the thin and flat storage portion 11 so that the blade portion 31 and the jaw portion 33 of the blade 30 can be stored. In addition, since the two side walls 11a are formed by connecting the bottom wall 11b and the abutting portion 12, the integral molding using, for example, a synthetic resin as a material can be easily performed. Of course, the outer sheath 20 for accommodating the inner sheath 10 so that it can be freely moved in and out can also be molded. Therefore, this blade sheath 100 is easy to manufacture as a whole.

Now, in order to take out the blade 30 housed in the blade sheath 100, the following is performed. First, while holding the outer surface of the outer sheath 20 firmly with, for example, the left hand, the grip portion 32 of the cutting tool 30 is gripped with the right hand, and is pulled as shown by the solid arrow 1 in FIG. Since the jaw part 33 of the blade part 31 put in the storage part 11 of the inner sheath 10 is in contact with the inside of the contact part 12,
The inner sheath 10 is also pulled out of the outer sheath 20 by pulling out the blade 30. At this time, since both the blade portion 31 and the jaw portion 33 of the blade 30 are completely wrapped by the inner sheath 10, there is no injuries to the fingers at the time of this withdrawal.

When the inner sheath 10 is pulled out of the outer sheath 20 together with the blade 30 as described above, the blade portion 31 housed in the housing portion 11 of the inner sheath 10 becomes, as shown in FIG. Is exposed to the outside through the opening 13 formed on the upper surface of the tool, the cutter 30 can be easily taken out as it is by moving the grip portion 32 upward in FIG. 1 (arrow 2 in FIG. 1) (see FIG. 1). This is indicated by the arrow 3) in FIG. Of course, in order to store the blade 30 in the original blade sheath 100, the operation reverse to that described above may be performed.
The housing of the inner sheath 10 with respect to the outer sheath 20 is ensured by the end face of the grip portion 32 abutting on the outer end face (the right end face in FIG. 1) of the inner sheath 10.

Regardless of which of the above operations is performed, the blade 3
0 is taken out of the inner sheath 10 and stored in the inner sheath 10 at a position away from the finger holding the outer sheath 20, or the blade portion 31 and the jaw portion 33 are wrapped by the inner sheath 10. Since the blade sheath 100 is left as it is, no injury is caused when the blade sheath 100 is used. In particular, the operation of taking out the blade 30 from the blade sheath 100 is as follows.
This is done in the order of the arrows 1.2.3 in FIG. That is, since the blade portion 31 and the jaw portion 33 of the blade 30 are made in a direction away from the user's body, it is possible to use the body without any difficulty in the movement of the human body, and the safety is extremely high. It is.

Looking at the blade 30 housed in the blade sheath 100, not only the blade 31 but also the jaw 33 are wrapped by the inner sheath 10. Therefore, the jaw 33 is eliminated. There is no longer any need to do that. Therefore, the blade sheath 100
Can safely store the blade 30 having the jaw portion 33 necessary for small work, and sufficiently secure the safety during use.

In the embodiment described below, the stopper 14 is formed on the inner sheath 10 side, and the engaging recess 22 with which the stopper 14 engages is formed on the outer sheath 20 side. Does not completely fall out of the outer sheath 20. In addition, while the blade 30 is not stored in the storage unit 11,
When the inner sheath 10 is inserted into the outer sheath 20, the inner sheath 1
There is a case where the trigger for removing 0 is lost, but in the following embodiment, the removal piece 15 on the inner sheath 10 side is exposed from the notch 23 formed on the bottom surface of the outer sheath 20. By putting a finger on the piece 15, the inner sheath 10 can be easily taken out of the outer sheath 20.

[0018]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a sheath for a cutting tool according to the present invention; FIG. The blade sheath 100 basically includes an inner sheath 10 having a storage portion 11 for storing the blade portion 31 and the jaw portion 33 of the blade 30, and an outer sheath for inserting the inner sheath 10 in and out. The inner sheath 10 and the outer sheath 20 are made of a synthetic resin.

The inner sheath 10 is formed by integrating two side walls 11a having a sufficient area to cover the side surfaces of the blade portion 31 and the jaw portion 33 of the blade 30 by a contact portion 12 and a bottom wall 11b. The storage portion 11 for storing the blade portion 31 of the blade 30 and the like is formed by these side walls 11a. At the outer end side of the storage portion 11, that is, at the right end side in FIG. 1, the contact portion 12 integral with each side wall 11a is located. The upper surface of the storage portion 11 is shown in FIG. It is an opening 13 as shown.

In the inner sheath 10 of the embodiment, FIG.
As shown in FIGS. 6 to 6, stoppers 14 are formed integrally on the outer end face of each side wall 11a and on the inner side, and the right end side in the figure is a right angle engaging portion. Each of these stoppers 14 prevents the inner sheath 10 from coming off from the outer sheath 20 by a predetermined amount or more by engaging with an engagement recess 22 in the outer sheath 20 described later. Inner sheath 10 of the present embodiment
In order to ensure the operation of the stopper 14, the length of the bottom wall 11b connecting the side walls 11a is made shorter than the side wall 11a, and each side wall 11a is
Is formed so as to be slightly curved outward as shown in the right part of FIG. That is, by bending each side wall 11a outward, an action as an elastic material is imparted to the side wall 11a, and when the inner sheath 10 is stored in the storage portion 21 of the outer sheath 20, each stopper 14 is constantly pressed outward. It is something that can be done.

Further, in the inner sheath 10, as shown in FIG. 3, a bottom wall 11b connecting the side walls 11a is provided.
The take-out piece 15 is integrally formed on the right end side in the drawing. This bottom wall 11b has a notch 2 on the outer sheath 20 side described later.
3 that allows the inner sheath 10 to be easily taken out by placing a finger on the take-out piece 15 when only the inner sheath 10 is inadvertently stored in the outer sheath 20. It is.

The outer sheath 20 will now be described.
As shown in FIG. 1 to FIG. 6, the substantially flat inner sheath 10 is housed in the housing portion 21, and therefore is formed as a flat plate similar to the inner sheath 10. In the outer sheath 20 of the present embodiment, an engagement recess 22 for the stopper 14 on the inner sheath 10 side needs to be formed on the inner surface of the storage portion 21. By means or the like, they are integrated as shown in FIGS.

That is, the inner surface of the outer sheath 20 has a structure shown in FIG.
As shown in FIG. 6 to FIG. 6, the engagement recesses 22 with which the stoppers 14 on the inner sheath 10 can engage
It is formed in the same shape as that of FIG. Accordingly, when the inner sheath 10 housed in the outer sheath 20 is pulled out by a predetermined amount, as shown in FIG. This prevents the inner sheath 10 from coming off further. Thus, even if the user holds only the outer sheath 20 and holds the gripper 32 of the cutting tool 30 downward, the inner sheath 10 comes out to the position shown in FIG. 6, but does not come out further. Therefore, the blade 30 does not fall on the foot. The engagement recess 22 may be a simple hole.

Further, as shown in FIG. 3, the outer sheath 20 in the present embodiment has a notch 23 opening rightward in the drawing at a portion located on the bottom surface and on the right side in the drawing.
Is formed. The notch 23 exposes the removal piece 15 of the cut inner sheath 10 housed in the outer sheath 20, and creates a trigger for taking out the inner sheath 10 from the outer sheath 20.

In the embodiment shown in FIGS. 1 to 6, the entire shape of the blade sheath 100 is square, but the entire shape is the conventional shape shown in FIG. 7 or FIG. As described above, the blade 30 may be formed and implemented according to the shape of the blade portion 31 of the blade 30. Further, in order to promote the early drying of the moisture adhering to the blade portion 31 of the stored blade 30, the inner sheath 10 and the outer sheath 20 are formed with ventilation holes as shown in FIG. It may be.

[0026]

Effect of the Invention] above, as detailed in the present invention, as illustrated in the above embodiment, met cutter sheath 100 for accommodating the cutting portion 31 comprising a jaw portion 33 of the "knives 30 The blade sheath 100 is composed of an inner sheath 10 having a storage portion 11 for storing the entire blade portion 31 and an outer sheath 20 for storing the inner sheath 10 in a freely accessible manner. A contact portion 12 with which the jaw portion 33 contacts the outer end of the sheath 10, and an opening 13 for insertion and removal of the blade portion 31 is formed on the upper surface of the storage portion 11 of the inner sheath 10. Of the blade 30 of the blade 30. Naturally, the safety of the blade 30 having the jaw 33 can be ensured. A sheath for cutting tools that can be made and is easy to use Can be provided by a simple configuration.

[Brief description of the drawings]

FIG. 1 is a partially cutaway front view showing a state in which an inner sheath of a knife sheath according to the present invention is slightly pulled out.

FIG. 2 is a plan view of the same.

FIG. 3 is a bottom view of the same.

FIG. 4 is a transverse cross-sectional view of the sheath for the blade, showing a state before the inner sheath is housed in the outer sheath.

FIG. 5 is a cross-sectional view showing a state where the blade is housed in the blade sheath.

FIG. 6 is a cross-sectional view of the blade sheath when the inner sheath is pulled out from the outer sheath to the maximum.

FIG. 7 is a front view of a conventional knife sheath.

FIG. 8 is a front view of another conventional blade sheath.

[Explanation of symbols]

100 sheath for knife 10 Inner sheath 11 storage 11a side wall 11b bottom wall 12 Contact section 13 opening 14 Stopper 15 Take-out pieces 20 outer sheath 21 Storage section 22 Engagement recess 23 Notch 30 cutlery 31 Blade 32 gripper 33 Jaw

Claims (1)

(57) [Claims] 1. A blade sheath for accommodating a blade portion including a jaw portion of a blade, comprising: an inner sheath having an accommodating portion for accommodating the entire blade portion; An outer sheath for accommodating the sheath so that it can be freely inserted and removed, and a contact portion with which the jaw portion abuts at an outer end of the inner sheath; A sheath for a knife, wherein an opening for inserting and removing a part is formed.