JPH10337679A - Hammer for escape - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily break glass even when it is tempered glass, laminated glass or wire reinforced glass by making a head end of a long shaft of a glass holding part into a conical tapered part and furnishing a conical striking part on a head end of the tapered part. SOLUTION: A grip 33 is gripped so that a head 2 comes to be upward and a striking part 21 frontward. Thereafter, the striking part 21 is brought down in the F direction powerfully so that it is made contact with glass as breaking object. Consequently, as a glass holding part (outside) and a handle part make an angle at 95 deg., the striking part 21 makes roughly vertically contact with the glass. Thereafter, as stress is concentrated on a head end of the striking part 21, the glass is broken and the head end of the striking part 21 penetrates into the glass. At this point of time, when it is tempered glass having residual stress, breakage spreads over the overall glass due to inside stress and the whole glass is broken. In the case of laminated glass, as the striking part 21 has an apex angle of 80 deg. when the head end of the striking part 21 penetrates, a first drilled hole is enlarged.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a hammer for emergency escape from a vehicle or the like.

[0002]

2. Description of the Related Art In a side window glass for an automobile, tempered glass whose strength is enhanced by residual stress by rapid cooling so as not to be easily broken is used. Also, the front windshield does not scatter fragments when damaged,
From the tempered glass, which has been the mainstream in the past, it has the advantages of buffering the impact of a human body collision, securing a certain level of visibility even if it is damaged, and not receiving and penetrating the human body or stepping stones when they hit. PVB between glass
The use of laminated glass in which a transparent resin layer such as (polyvinyl butyrate) is sandwiched is mainly used.

By the way, when a car crash occurs or the car is submerged, it may be necessary to escape quickly due to fire or water intrusion. May be trapped.

In this case, not only bare hands but also tools normally provided in the vehicle, such as an engine key or a driver, can not be broken because of the high strength of the tempered glass, and it is easy to use even a normal hammer with a flat tip. Does not crack. Therefore, for emergency safety, a device was needed to break the front windshield and side window glass and escape from the vehicle.

Therefore, a hammer with a sharpened tip has been devised in order to break the tempered glass. This escape hammer is
The strength is enhanced by making the tip of steel, and the shape is sharpened to concentrate the stress, so that the glass can be easily broken with a single blow with a small force.

[0006] According to this escape hammer, even if it is tempered glass, it can be easily crushed and escape from the vehicle becomes possible.

[0007]

However, in the case of laminated glass, with a conventional escape hammer, the pointed tip penetrates the glass and the portion of the raw glass on the surface is easily broken, but only the glass on the surface is broken. The resin layer sandwiched between the glass has only small holes. Therefore, it was necessary to make a large opening for escape by cutting out the resin layer, but it was difficult to perforate a large exit with a conventional escape hammer.

[0008] In addition, recently, as for windows of buildings and windows of houses, glass with wires has been increasing in order to prevent crime and prevent scattering of fragments. Also in this case, escape by fire or earthquake,
When you need to evacuate, not only break the glass,
It is necessary to break the wire and secure an opening for escape.

In the event of an emergency evacuation such as an earthquake,
It may be necessary to pry open or break doors.

Here, in the conventional steel hammer, when the glass is continuously hit or hit with a certain hardness or more, the tip of the hitting portion is easily crushed. Therefore, if continuous use becomes possible by strengthening the tip portion, it can be used safely even in an emergency, for example, when a hole is made in a used spray can. If anything other than glass can be destroyed, the possibility of escape in an emergency will increase.

The present invention has been made to solve the above-mentioned problems, and it is possible to easily break any of tempered glass, laminated glass, and wire-containing glass for automobiles and buildings, and to make it easier to escape. An object of the present invention is to provide an escape hammer capable of making a large opening.

It is another object of the present invention to provide an escape hammer having such a function and easy to manufacture.

It is a further object of the present invention to provide an escape hammer that can be used continuously and that can break anything other than glass.

[0014]

According to the present invention, any of the above-mentioned problems has been solved by the following emergency escape hammer.

That is, in the first invention, the head comprises a head portion and a handle portion connected to the head portion, and the head portion has a glass holding portion having one longer V-shape.
An escape hammer comprising a conical taper portion at a tip of a longer shaft of the glass holding portion and a conical hitting portion at a tip of the taper portion, and in the second invention, The escape hammer wherein the inner angle of the glass holding portion is 10 ° to 20 °, and in the third invention, the apex angle of the conical tapered portion is 25 ° to 45 °, An escape hammer in which the apex angle of the hitting portion is 70 ° to 120 °, and in the fourth invention, the head portion and the handle portion are formed by bending from one continuous member. An escape hammer, and in the fifth invention,
At least the surface of the hitting portion is an escape hammer made of titanium or a titanium alloy.

[0016]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an embodiment of the present invention;

FIG. 1 shows an escape hammer 1 according to the present invention. In the present description, the upper part of FIG. 1 is defined as the upper part of the hammer, and the left side of the figure is defined as the front of the hammer.

In FIG. 1, an escape hammer 1 is composed of an upper head 2 and a lower handle 3, and is formed by grinding, bending, and quenching an SKD round bar of alloy tool steel having a diameter of 13 mm. Things.

The head 2 has a V-shaped glass holding portion 25 which is substantially horizontal and is open on the left side.
5 includes an upper glass holding portion (outer) 25a and a lower glass holding portion (inner) 25b, and the two glass holding portions form a V-shape having an inner angle of about 15 °, and the bent portion is formed on the inner side. R is a sharp bend of about 3 mm.

The glass holding portion (outside) 25a has a length of about 80 mm in this embodiment. At the left end of the glass holding portion (outside) 25a, there is a conical tapered portion 23 having a vertex angle of about 35 ° in the shape of a pencil.

Further, a cone-shaped striking portion 21 having a thickness of about 60 μm and having a vertex angle of about 80 ° and having a vertex angle of about 80 is provided at a portion of the tapered portion having a tip of about 3 mm.

The glass holding portion (inside) 25b is approximately 50 m in length.
m, the upper end is connected to the glass holding portion (outside) 25 a and the lower end is connected to the handle 3.

An inner angle of about 10 is formed with the pattern part 3 provided continuously.
It is bent to 0 ° and the length is about 2
The handle 3 is formed in a linear shape of 80 mm. Therefore,
The angle formed between the glass holding portion (outside) 25a and the handle portion 3 forms an angle of 95 ° on the hitting portion side, and the hitting portion 21 abuts vertically when swinging down.

At the center of the handle 3, a rubber grip 33 for preventing slippage is provided.

A grip end 35 at the lower end of the handle 3
As shown in FIG. 2, the tip is ground in a thin plate shape so that it can be used like a burl.

Although the present invention has been described by taking the first embodiment as an example, it goes without saying that the present invention is not limited to this.

For example, the material is not only SKD of the alloy tool steel of the present embodiment, but also other alloy tool steel, carbon tool steel such as SK3, cemented carbide, etc., and is excellent in impact resistance and wear resistance. Any material may be used, and titanium alloy properties are particularly desirable.

The thickness is suitably about 13 mm in diameter when SKD is adopted, but if other materials are used,
The thickness is appropriately selected according to the strength.

In this embodiment, the whole is molded with a round bar. However, in the case where the whole is molded by casting, the cross-sectional shape is not limited to a circle, and can be appropriately selected such as an ellipse or a polygon. The shape of the handle may be made easy to hold.

As for the overall shape, the shape as in the above embodiment shown in FIG. 1 can be said to be the most efficient shape to fulfill its function. For example, the striking portion 21 is swung down as shown in FIG. It is sufficient that the striking portion 21 protrudes from the extension of the handle portion 3 so as to abut on the glass 4 when it hits, and may be longer or shorter than in FIG. Further, as shown in FIG. 4, the head 2 and the handle 3 may not have a single continuous shape as in the embodiment, but may have a shape in which two members are joined, and as shown in FIG. The opening of the glass holding portion 25 is the handle 3
May be in the same direction as the direction of the axis. In short, it is only necessary that the striking part 21 hits the target such as glass when it is shaken down, the tip penetrates the target, the glass or the like is sandwiched in the glass holding part 25, and the glass or the like can be broken by leverage with a predetermined position as a fulcrum Therefore, any shape may be used as long as this function is achieved.

The shape of the hitting portion 21 is desirably a conical shape having an apex angle of 80 °, but may be in a range of 70 ° to 120 °. If the angle is smaller than this, the hitting portion is easily broken, and if the apex angle is larger than this, the piercing force decreases.

The tapered portion 23 is desirably a conical shape having a vertical angle of 35 °, but may be 25 ° to 45 °. If the apex angle is smaller than this, there is a problem of breakage or bending, and if it is larger, it is difficult to penetrate into the object and cause the object to break.

It is desirable that the inner angle of the glass holding portion 25 is 15 °, but if the angle is in the range of 10 ° to 20 °, it can be caused by holding the glass. If the angle is smaller than this, it becomes difficult for the tip of the hitting portion to penetrate, and if the angle is larger than this, it becomes difficult to sandwich the glass.

In the cross section taken along the line II-II of FIG. 1, if a cutting blade 5 for cutting the resin is formed inside the glass holding portion 25 by cutting as shown in FIG. 3, it is effective for cutting the resin. is there.

Hereinafter, the use and operation of the emergency escape hammer of the present embodiment will be described for a vehicle glass.

First, in FIG. 6, the grip 33 is gripped so that the head 2 is directed upward and the striking portion 21 is directed forward. Then, the striking unit 21 is swung down with momentum so as to bring the striking unit 21 into contact with the glass to be broken. Then, since the glass holding portion (outside) 25a and the handle portion 3 make an angle of 95 ° as described above, the striking portion 21 comes into contact with the glass substantially perpendicularly as shown in FIG. Here, F indicates the direction of the force.

Next, as shown in FIG. 7, since the stress concentrates on the tip of the hitting portion 21, the glass is broken and the tip of the hitting portion 21 penetrates the glass. At this point, if the tempered glass has a residual stress, the destruction spreads throughout the glass due to the internal stress, and the entire glass is destroyed. In the case of a laminated glass, the raw glass on the surface of the laminated glass is broken, but the resin layer is merely perforated. Hereinafter, description of the laminated glass will be continued.

When the tip of the striking portion 21 penetrates, the striking portion 21 has an apex angle of 80 °, so that the hole drilled first is enlarged.

If the inertial force still remains, the tapered portion 23 following the hitting portion penetrates the hole thus drilled. Since the tapered portion has a vertical angle of 35 °, the hole drilled by the wedge effect is expanded.

If the inertial force still remains, it penetrates into the object up to the glass holding portion (outside) 25a as shown in FIG.

Next, when the handle 3 is pushed in the direction F in FIG. 8, one point inside the glass holding portion (outside) 25a is used as a fulcrum, and one point inside the glass holding portion (outside) 25a is used as a point of action. As a result, the resin layer is destroyed. The fulcrum and the action point are relative to each other, and the destruction with the fulcrum as the fulcrum and the fulcrum as the fulcrum proceeds simultaneously.

Further, if the fracture progresses and the hole is enlarged, the head bent portion 2 is formed on the fractured surface of the destroyed object as shown in FIG.
7 is abutted. The inside of the head bending portion 27 is R = 3 m.
m, and the normal front windshield is 4 to 5 mm thick. Therefore, if the head bent portion 27 is brought into contact with the end of the broken portion of the resin layer and the handle portion 3 is pushed in the F direction, the head bent portion 2 is formed.
7, the end of the broken portion of the resin layer is hooked, and the tip of the glass sandwiching portion (outside) 25a serves as a fulcrum.
The glass resin layer is destroyed with the inside as the point of action.

Conversely, as shown in FIG.
Is pulled in the F direction, the resin layer is broken with the bent portion between the handle portion 3 and the inner glass holding portion 25b as a fulcrum and the inside of the head bent portion 27 as a point of action.

The grip end 35 in the form of a thin plate at the lower end of the handle shown in FIG. 2 can be used as a crowbar when the head 2 is difficult to handle and handle, and has a function as an emergency evacuation device. To enhance.

[0045]

According to a first aspect of the present invention, there is provided a head portion, and a handle portion connected to the head portion. The head portion includes a glass holding portion having a longer V-shape. Since it is an escape hammer characterized by having a conical tapered portion at the end of the longer shaft of the glass holding portion and a conical hitting portion at the end of the tapered portion, even if it is tempered glass, This has the effect that the tip easily penetrates and can be easily broken with a small force.

Further, even with a laminated glass, there is an effect that the resin layer can be torn with a small force after penetrating the tip.

Therefore, even if a woman needs to evacuate urgently, there is an effect that she can quickly escape from the vehicle. In addition, since the windshield can be broken even if the front windshield is a laminated glass, the place to escape is not limited to the side window, so that safe evacuation becomes possible and a remarkable effect that life can be protected is produced.

In addition to escaping from the vehicle, it is also possible to break the wire-containing glass of the building window and also to break fixed blinds and the like fitted to the window frame. This also has the effect of exerting its power in emergency evacuation in a building fire.

According to the second invention, in addition to the effect of the first invention, since the escape hammer in which the inner angle of the glass holding portion is 10 ° to 20 °, particularly when the glass is held and broken, The broken end of the glass is easily hooked on the bent portion 27 of the glass, and the opening is easily enlarged.

In the third invention, in addition to the effects of the first invention, the apex angle of the conical tapered portion is 25 ° to 45 °, and the apex angle of the conical hitting portion is 70 ° to 120 °. Since the escape hammer is a degree, the tip is less likely to be deformed and the hole is easily pierced particularly when the glass is hit.

In the fourth invention, in addition to the effects of the first invention, the head and the handle are escape hammers formed by bending and forming one continuous member. The production process can be simplified and the production efficiency is extremely high. Therefore, the manufacturing cost is also reduced.
Furthermore, there is an effect that there is no joint portion and it is hard to break.

In the fifth invention, in addition to the effect of the first invention, at least the surface of the hitting portion is an escape hammer made of titanium or a titanium alloy.
In addition to tempered glass, even concrete, brick, thin metal plates, etc. can be broken without breaking the tip, and the effect is that the tip is not easily broken even when used continuously. Therefore, it can be used not only for breaking down the glass of a vehicle but also for breaking down wall panels of buildings and the like in the event of an earthquake or fire, which is extremely effective at the time of emergency escape from a room.

In addition, not only for emergency use, but also for continuous use, for example, it is possible to use it for business use in drilling work of used spray cans, car dismantling business, building dismantling business, etc. Therefore, it contributes to improvement of production efficiency.

[Brief description of the drawings]

FIG. 1 is a right side view of an escape hammer according to the present embodiment.

FIG. 2 is a perspective view of a handle part of the escape hammer according to the embodiment;

FIG. 3 is a sectional view taken along line II-II in FIG.

FIG. 4 is a modification example 1 of the escape hammer according to the embodiment.

FIG. 5 is a modified example 2 of the escape hammer according to the embodiment.

FIG. 6 is an operation diagram 1 of the escape hammer according to the embodiment.

FIG. 7 is an operation diagram 2 of the escape hammer according to the embodiment.

FIG. 8 is an operation diagram 3 of the escape hammer according to the present embodiment.

FIG. 9 is an operation diagram 4 of the escape hammer according to the embodiment.

FIG. 10 is an operation diagram 5 of the escape hammer according to the present embodiment.

[Explanation of Signs] 1 ... Escape hammer 2 ... Head 3 ... Shaped portion 4 ... Laminated glass 5 ... Resin slicing blade 21 ... Striking portion 23 ... Tapered portion 25 ... Glass holding portion 25a ... Glass holding portion (outside) 25b ... Glass Nipping part (inside) 27 ... Head bending part 33 ... Grip 35 ... Grip end

Claims (5)

[Claims] 1. A head portion comprising: a head portion; and a handle portion connected to the head portion, wherein the head portion has a glass holding portion formed with a longer V-shape, and a longer glass holding portion. An escape hammer comprising: a conical tapered portion at a tip of a shaft; and a conical hitting portion at a tip of the tapered portion. 2. An inner angle of the glass holding portion is 10 ° to 20 °.
The escape hammer according to claim 1, wherein 3. A conical taper having an apex angle of 25 ° to 4 °.
5 °, and the apex angle of the conical hitting portion is 70 ° to 12 °.
The escape hammer according to claim 1, wherein the angle is 0 °. 4. The escape hammer according to claim 1, wherein said head portion and said handle portion are bent and formed from one continuous member. 5. The escape hammer according to claim 1, wherein at least the surface of the hitting portion is made of titanium or a titanium alloy.