JPH08219689A - Police man's stick - Google Patents

Abstract

PURPOSE: To provide a police man's stick which is so constituted as to be used instead of an oak material, tough and light, and excellent in handling and durability, and prevent the hand and the fingers of an operator from being damaged due to slip of a cutting edge along a surface when a knife is received. CONSTITUTION: It is noticed that a metallic material, such as an aluminum pipe, and a covering material, such as rubber, are integrally combined together. A police man's stick comprises a pipe body 2 having a given length and rigidity; and a covering material 3 with which the outer periphery of the pipe body 2 is integrally covered throughout the whole of of the length thereof and which has given durability, resiliency, and sliding ability.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a security stick, and more particularly to a security stick having a double structure made of a metal material such as aluminum and a rubber material in place of a conventional oak material.

[0002]

2. Description of the Related Art A conventional guard stick is constructed by an oak material. However, in light of the current situation where it is becoming difficult to obtain oak wood, it has come to be demanded that a stick made of other materials is used.

Since the staff is used by police officers in carrying out their duties, it is necessary to have versatility and portability so that it can be used for various purposes such as security, investigation, arrest, and defense or attack accompanying these. I am trying. Moreover, it has various durability such as heat resistance, cold resistance, weather resistance, chemical resistance, light resistance, water resistance, and abrasion resistance, and is required to be easy to handle, tough and lightweight. There is. Furthermore, electrical characteristics such as insulation resistance, breakdown voltage and tracking resistance are stable, and storage stability is required.

In the case of using such a guard stick, particularly when the guard stick hits the surface of the guard stick in a fighting situation with an opponent who has a knife or other knife, if the guard stick is made of metal, it hits the guard stick. There is a problem that the blade edge of the blade may slip on the surface of the guard and damage the hands or fingers of the police officer. Note that the oak material is stronger and tougher, so the bite of the knife itself is better than that of a metal material. The possibility cannot be denied, and as mentioned above, there is a problem in obtaining oak.

Although it is conceivable to protect the operator's hand by providing a guard on a metal guard stick, the structure is complicated and the strength is reduced due to the complexity of the structure. From the viewpoints of reduced versatility and handleability, increased weight, and the like, it is desirable that the guard stick has a simple round bar shape as in the conventional case.

[0006] Therefore, the surface of the security stick is required to have a characteristic that the blade tip does not slip when hit by a knife, while the security stick may behave like a bamboo sword or a wooden sword. Therefore, some degree of slip is also required on the surface of the guard.

[0007] In short, the walking stick is basically required to have mechanical strength and light weight, and at the same time, the surface of the walking stick has a surface which is used for protection against a cutting tool and handling during an attack. Contrary characteristics such as slipperiness are required.

[0008]

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and provides a walking stick that is strong and light in weight, and has excellent handleability and durability, instead of oak. Is an issue.

It is another object of the present invention to provide a guard that does not damage the operator's hand or fingertip by the blade tip sliding on the surface when receiving the blade.

A further object of the present invention is to provide a security stick that can be operated like a bamboo sword or a wooden sword and has good operability and handleability.

Another object of the present invention is to provide a walking stick that can be made lighter and has durability against various environmental conditions.

[0012]

That is, the present invention focuses on integrally combining a metal material such as an aluminum pipe and a covering material such as rubber, and a pipe main body having a predetermined length and rigidity. A coating material that integrally coats the outer circumference of the pipe body over its entire length and has predetermined durability, elasticity and slipperiness,
It is a walking stick characterized by having.

The pipe body can be provided with a predetermined rigidity by being made of any one of aluminum pipe, fiber reinforced plastic, and titanium pipe.

By forming the coating material from a heat-shrinkable rubber material, the integrity with the pipe body can be obtained.

The covering material is made of any one of an ethylene propylene rubber material, a nitrile butadiene rubber material, an ethylene / acrylic acid / copolymer rubber material, or a cross-linked polyethylene material, so that the covering material has predetermined durability and elasticity. And slipperiness can be obtained.

The coating material can be integrated with the pipe body by adhering it to the pipe body.

By polishing the surface of the coating material, a predetermined slipperiness can be obtained.

By attaching end caps to both ends of the pipe body, both ends can be provided with impact resistance and wear resistance.

The end caps can be made distinguishable from each other by changing the shape of the identification mark or the shape of each other.

The pipe body is constructed so that it has a tapered portion with a gradually reduced wall thickness between one end and the other end, so that it can be operated like a bamboo sword or a wooden sword. And the handleability can be improved.

[0021]

In the guard according to the present invention, the pipe main body having a predetermined length and rigidity, and the covering material integrally covering the outer periphery of the pipe main body and having the predetermined durability, elasticity and slipperiness are provided. Since this is configured, the hardness and toughness of the pipe main body and the elasticity of the covering material are combined, so that characteristics comparable to those of conventional oak materials can be obtained.

In particular, since the covering material is integrally formed on the pipe body by an adhesive or by a heat shrinkage action, when the blade is received, the blade edge cuts into the guard and bites it, so that the surface of the guard is on the hand side. Since it can be caught by the covering material without slipping on the pipe, it secures both the toughness of the pipe body and the biteability with the blade, and even when fighting with an opponent holding the blade Can be prevented. In particular, the biting property with respect to the blade can be improved not only in the case of the metal material alone but also in the case of the conventional oak material.

Since the surface of the covering material is polished, it can fit on the palm of the hand to obtain an appropriate degree of sliding, and the operability is good even during handling for various operations.

If the pipe body is constructed so as to have a tapered portion from one end to the other end,
The overall weight balance can be made similar to that of a bamboo sword or wooden sword, and the operability can be further improved.

[0025]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, a security stick 1 according to a first embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a cross-sectional view of a guard stick 1, which is a hollow pipe body 2
A cover material 3, an adhesive layer 4, and end caps 5 at both ends.

The pipe main body 2 is made of, for example, an aluminum pipe having dimensions and a predetermined length and rigidity, for example, as shown in FIG. 1, and is preferably heat treated to further increase the rigidity. As the material of the pipe body 2, other than this, fiber reinforced plastic (FRP) such as carbon fiber reinforced plastic or carbon fiber reinforced plastic, or titanium pipe can be used.

The coating material 3 integrally coats the outer periphery of the pipe body 2 and has predetermined durability, elasticity and slipperiness, and has, for example, heat shrinkability, flexibility and various durability (for example, (Heat resistance, cold resistance, weather resistance, chemical resistance, light resistance, water resistance, wear resistance, etc.), as well as stable electrical characteristics such as insulation resistance, breakdown voltage and tracking resistance, and storage stability. Various rubber materials such as ethylene propylene rubber material, nitrile butadiene rubber material, ethylene / acrylic acid / copolymer rubber material, or crosslinked polyethylene material can be adopted.

The above-mentioned various materials have a heat shrinkage in the radial direction of 50% and a shrinkage in the axial direction of 0 to 15% when they are formed into a tube shape. The integrity with the main body 2 can be obtained.

In addition to the integration with the pipe body 2 due to the heat shrinkage effect of the coating material 3, an adhesive layer 4 is provided between the pipe body 2 and the coating material 3 to further ensure the integrity. It is possible to use the adhesive layer 4 which is activated at the same time when the coating material 3 is heat-treated.

Further, by polishing the surface of the covering material 3 integrated with the pipe main body 2, the slipperiness of the guard stick 1 is appropriately suppressed while keeping the slipperiness of the guard stick 1 so that it fits in the palm of the hand.

When the pipe body 2 is made of a metal such as an aluminum pipe or a titanium pipe, it is possible to coat the silver surface of the pipe body 2 with the coating material 3 colored in various colors. It is possible to relieve the intimidation of.

The end cap 5 generally functions as a stone stake, and is made of nylon, for example, to ensure impact resistance and wear resistance during offensive and defensive operation, general operation and other uses. There is. The pair of end caps 5 have the same shape at both ends of the pipe body 2 and are configured to be screwed into the pipe body 2, and the adhesive layer 4 is provided between the end caps 5 and the pipe body 2. To improve the unity and prevent double disconnection.

As shown in Table 1 of FIG. 2, the outer diameter is 25 m.
When comparing the characteristics (flexural strength) with oak materials for aluminum pipes with a wall thickness of m and 1.8 mm (guard stick 1),
It can be seen that both the proportional limit load and the 1 mm offset load are superior to the oak material. What is "proportional limit load"?
It is a load on the verge of permanent deformation (a load that can restore the current state), and the "1 mm offset load" is a load necessary for causing a permanent deformation of 1 mm. However, the security stick 1 (weight 630 g) is the same as the conventional oak (weight 660 g).
Its weight can be reduced by about 5% (about 30 grams) than the guard by.

When the guard 1 having such a structure is used,
In particular, as shown in FIG. 3, when the blade H hits the guard stick 10 diagonally, the guard stick 10 when the pipe body 2 and the covering material 3 are not integrated by heat contraction of the covering material 3 or the adhesive layer 4 or the like. In addition, the cut 11 is formed only in the portion of the covering material 3, and the covering material 3 is cut into a strip shape so as to peel the skin to form the strip-shaped cut piece 12, while the cutting tool H is formed on the surface portion of the pipe body 2. There is a risk of slipping onto the operator's hand.

However, as shown in FIG. 4, according to the guard 1 of the present invention, when the blade H hits the surface of the guard 1,
Since the covering material 3 and the pipe body 2 are received as a substantially integral body, the cutting tool H can bite into the pipe body 2 together with the covering material 3 and stop at the cut portion 13 of the covering material 3 and the pipe body 2. At the same time, only a slightly convex cut piece 14 is formed.

In this way, it is possible to avoid an unexpected situation, which is rather dangerous only by securing the rigidity and slipperiness as the material characteristics of the baton with a simple metal material.

Further, since the surface of the covering material 3 is polished to have an appropriate roughness to ensure slipperiness and gripping property,
Even when the guard 1 is swung around, it is possible for the operator to have good operability when the guard 1 is held or squeezed at any time.

FIG. 5 is a cross-sectional view of a guard 20 according to a second embodiment of the present invention, in which the pipe main body 21 of the guard 20 is not the same thickness over the entire length in the length direction but is shown in the drawing. In addition, the grip side end portion 22, the tapered portion 23 at the substantially central portion thereof, and the thin tip portion 24 constitute this.

Similar to the guard stick 1 (FIG. 1), the guard stick 20 has a pipe body 21 made of, for example, aluminum integrally covered with a covering material 3 made of ethylene propylene rubber, and a pair of end portions made of nylon. Attach the cap 5 integrally.

Since the pipe main body 21 has a tapered portion 23 between its one end (on the grip side end 22 side) and the other end (thin tip 24), the wall thickness is gradually reduced. If necessary, an identification mark 25 can be provided on the end cap 5 to identify the one end and the other end.

As the identification mark 25, a structure in which the colors of the whole or a part of the end cap 5 are changed to each other, a structure in which the shapes of the end caps 5 are changed to each other by forming a flat cut, or another structure is adopted. You can

As shown in Table 2 of FIG. 6, the outer diameter is 25.4.
mm, and the thin part (thin tip part 24) has a wall thickness of 1.5 m
Comparing the characteristics (flexural strength) with the oak material for a tapered aluminum pipe (guard 1) having a wall thickness of 2.0 mm at the thick portion (grip side end portion 22), proportional limit load and 1 mm offset load were found. It maintains the same rigidity as when using oak. However, the guard stick 20 (weight 610 grams) can be reduced in weight by about 8% (about 50 grams) as compared with a conventional stick made of oak material (weight 660 grams).

Also in the guard stick 20 having such a configuration, as shown in FIG.
Also, while having the biteability of the cutting tool H as described in FIG. 4, the guard stick 20 can be handled like a bamboo sword or a wooden sword.

Furthermore, since the grip-side end 22 has a center of gravity that is offset, the grip-side end 22 can be gripped and operated in the same manner as a bamboo sword or a wooden sword.

Further, the thin tip portion 24 can further reduce the weight, and the weight of the end cap 5 on the side of the thin tip portion 24 can be increased by the weight reduction to further improve the striking effect and the handling operability. You can also let it.

In the present invention, the material of the pipe body may be any one that is lightweight and rigid, and the material of the covering material preferably has heat shrinkability and can be easily integrated with the pipe body. In addition, any material can be used as long as it has durability, elasticity and slipperiness that can withstand various environments.

[0047]

As described above, according to the present invention, the pipe body having a predetermined rigidity and the covering material having a predetermined durability, elasticity and slipperiness are integrally combined.
It is possible to have properties that are generally contradictory (for example, toughness and elasticity and slipperiness) required in various usage modes including defense operation and attack operation using a walking stick. It is possible to obtain a walking stick having versatility, portability, operability, and safety comparable to that of oak.

[0048]

[Brief description of drawings]

FIG. 1 is a sectional view of a security staff 1 according to a first embodiment of the present invention.

FIG. 2 is a table 1 showing bending strengths of oak materials and aluminum pipes.

FIG. 3 is a cross-sectional explanatory view when the blade H hits the guard stick 10 diagonally when the pipe body 2 and the covering material 3 are not integrated.

FIG. 4 is a cross-sectional explanatory view when the blade H hits the walking stick 1 (in which the pipe body 2 and the covering material 3 are integrated) of the present invention diagonally.

FIG. 5 is a sectional view of a security stick 20 according to a second embodiment of the present invention.

FIG. 6 is a diagram 2 of flexural strength of an oak material and a tapered aluminum pipe (having a thin portion and a thick portion).
Is.

[Explanation of reference symbols] 1 Staff 2 Pipe body made of aluminum, for example 3 Cover material made of ethylene propylene rubber 4 Adhesive layer 5 End cap made of nylon, for example 10 Pipe body 2 and cover material 3 are not integrated Case 11 A cutout of the covering material 3 on the warning stick 10 12 A strip of the covering material 3 on the warning stick 10 13 A cutout of the pipe body 2 and the covering material 3 on the warning stick 14 14 A convex shape of the pipe body 2 and the covering material 3 on the warning stick 1 Cut piece 20 Guard stick 21 For example, an aluminum pipe main body 22 Grip side end 23 Tapered portion 24 Thin tip 25 Identification mark H Cutlery

Claims (9)

[Claims] 1. A pipe main body having a predetermined length and rigidity, and a coating material integrally covering the outer circumference of the pipe main body over the entire length thereof and having predetermined durability, elasticity and slipperiness. A walking stick characterized by having. 2. The pipe body is made of an aluminum pipe, a fiber reinforced plastic or a titanium pipe.
The security stick described. 3. The walking stick according to claim 1, wherein the covering material is made of a heat-shrinkable rubber material. 4. The covering material is made of any one of an ethylene propylene rubber material, a nitrile butadiene rubber material, an ethylene / acrylic acid / copolymer rubber material, and a crosslinked polyethylene material. The security stick described. 5. The walking stick according to claim 1, wherein the covering material is adhered to the pipe body. 6. The walking stick according to claim 1, wherein the surface of the coating material is polished. 7. Each end of the pipe body,
The walking stick according to claim 1, wherein an end cap is attached. 8. The batten according to claim 7, wherein the end caps are distinguishable from each other. 9. The walking stick according to claim 1, wherein the pipe main body has a tapered portion between the one end and the other end, the thickness of which is gradually reduced. .