JP2002011107A - Glass breaking device for emergency escape - Google Patents

Abstract

PROBLEM TO BE SOLVED: To achieve accurate and simple breakage of window glass by one operation while allowing easier housing along with a lighter weight and a compact designing. SOLUTION: The glass breaking device 1 is provided with a hammer block 9 which has a release mechanism adapted to release the engagement of the rear end part of a breaking rod 3 into a cylinder rod 5 as the breaking rod 5 gets down with the engagement and reaches a specified depth and a resilient spring 12 positioned on the back side of the hammer block 9. In the mechanism, as the cylinder body 5 is pressed and moved to the side of a glass surface side, the resilient spring 12 is reduced to accumulate resilience energy and as the breaking rod 3 gets down and reaches a specified depth, the engagement of the rear end part thereof is released with the action of the release mechanism. With the release of the resilience energy, the hammer block 9 is shot to hit the rear end part of the breaking rod 3. A glass contact member 4 is provided in front of the cylinder body 5 to hold the glass device 1 almost orthogonally to the glass surface.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an emergency escape glass breaker which is used when a door is opened due to an accident or breakdown of a car or the like and the escape cannot be achieved by breaking a window glass.

[0002]

2. Description of the Related Art There have been proposed escape hammers and glass breakers which are always kept in a vehicle and are used to break a window glass of the vehicle and escape in an emergency such as a submersion accident, a collision accident or a breakdown. ing. For example, Japanese Patent Application Laid-Open No. 10-3143
No. 27 proposes an emergency flame tube 50 with a glass breaking function provided with a sharp-pointed projection 51 at the bottom or tip of an emergency safety flame tube for an automobile as shown in FIG. 8 (conventional example 1). Japanese Patent Application Laid-Open No. 10-337679 discloses a glass breaking hammer 53 in which a head portion 52 is formed in a V-shape so that glass can be broken by leverage as shown in FIG. 9 (conventional example 2). Has been proposed.

[0003]

However, in the case of a type in which the window glass is broken by applying a direct blow to the window glass as in the former prior art example 1, it is light and compact and is stored in the vehicle. Although it has advantages such as easiness, the window glass made of tempered glass cannot be destroyed unless the window glass is hit hard, and in some cases, it cannot be destroyed unless it is hit at right angles to the window glass surface. In particular, if the occupant is female and weak, several hits can eventually result in destruction. Also, when the car rolls over during an accident, the seat belt cannot be removed, and the posture is restrained by the seat belt. Therefore, the arm cannot swing greatly or the window glass is hit at right angles. In addition, it is expected that it will not be possible to do so, and there is a problem that, if gasoline leaks and there is a danger of fire, it takes a lot of time to destroy the window glass, resulting in loss of life.

On the other hand, in the latter case of the hammer type of the conventional example 2, since the weight is somewhat heavy, if it can be swung up in the vehicle, the glass can be broken by a single blow in most cases. It seems that there are problems such as poor storage and appearance if you keep it in the car, and as described above, you can not remove the seat belt and the posture is restrained by the seat belt, If the angle f is not greatly changed, problems such as difficulty in breaking the window glass will occur.

Further, in the case of the conventional glass breaking tool, when the window glass is hit, small pieces may fly from the hitting portion and hurt the occupant's eyes. There is also a problem such as not being able to strike.

[0006] Therefore, a main object of the present invention is to provide a lightweight, compact and easy to store in a vehicle and to be able to swing up an arm, even if it is weak, in any posture. It is an object of the present invention to provide a window glass breaking tool that can reliably and easily break a window glass in a single operation even in a situation.

[0007]

SUMMARY OF THE INVENTION The present invention for solving the above-mentioned problem is characterized in that, at the front side position, a cylindrical body having a sharply protruding breaking rod is gripped by hand and the breaking rod has a leading end. If you press the glass further from the state of touching the glass surface,
The breaking rod is immersed in the cylindrical body, and is hit through the breaking rod at a certain immersion depth, and is an emergency escape glass breaking tool for breaking glass, wherein the glass breaking tool is A rear end portion of the breaking rod is engaged with the inside of the body, and a hammer block including a release mechanism for releasing the engagement at a predetermined immersion depth with the immersion of the breaking rod is provided. With a resilient spring located on the back side, with the pressing movement of the cylindrical body toward the glass surface side, the resilient spring is contracted and resilient energy is accumulated, and reaches a predetermined immersion depth, The operation of the release mechanism releases the engagement of the rear end of the breaking rod, and a mechanism for hitting the rear end of the breaking rod by firing the hammer block by releasing the spring energy, and The front of the body and is characterized in that a glass abutting member for holding substantially orthogonally to the glass surface in contact with the glass breaking device on the glass surface.

[0008] The glass breaking tool of the present invention, as in the prior art,
Instead of the occupant hitting the glass with human power, the glass can be easily broken by the mechanically applied striking force merely by gripping the cylinder and pressing against the glass surface. Therefore, the glass can be easily broken by a single operation without swinging the arm, even if the posture is weak and impossible.

[0009] In addition, although there is a concern about skidding with only a sharply projecting breaking rod, the glass breaking member is integrally provided with a glass abutting member, so that the glass breaking tool is always held against the glass surface. As well as being able to be held orthogonally, it is possible to effectively suppress sideslip due to the contact of the glass contact member, and it is possible to apply the impact by the breaking rod orthogonally, that is, effectively, to the glass surface become.

As the glass contact member, as a first embodiment, a flexible member which is deformed in accordance with the pressing movement of the cylindrical body can be cited. In this case, if an arcuate concave portion is formed on the glass contact surface of the flexible glass contact member for suction to the glass surface, side slip can be more effectively prevented. Further, as a second aspect of the glass contact member, there can be cited a structure in which the glass contact member is inflexible and moves to the rear side of the cylinder with the pressing movement of the cylinder.

Further, with the above structure, it can be made lightweight and compact, easy to store in a vehicle, and
The appearance is also good.

[0012]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a perspective view of a glass breaking tool 1 according to the present invention, and FIG. 2 is a longitudinal sectional view thereof.

In the present glass breaker 1, the grip portion 2 is gripped by hand, and the distal end surface 4a of the flexible glass contact member 4 mounted on the distal end is a window glass G (hereinafter, also simply referred to as glass). When pressed against the window glass G side, the cylindrical body 5
Slides toward the window glass, in other words, the breaking rod 3 is immersed in the cylindrical body 5, and the spring inserted in the cylindrical body 5 stores resilient energy, and is compressed by the pressing. The spring is released at a certain immersion time, and the above-mentioned spring energy is released at a stretch, so that the adjacent hammer block in the cylinder 5 is fired toward the glass surface side, and the rear end of the breaking rod 3 is released. The glass G is broken by hitting, and the flexible glass abutting member 4 always holds the glass G orthogonally to the glass surface, suppresses the sliding in the lateral direction, and reduces the occupant's Even if it is weak, or even in a situation where the arm cannot be lifted, the window glass G can be reliably destroyed by one operation without requiring any force.

Hereinafter, the structure of the glass breaking tool 1 will be described in detail. The cylinder 5 is composed of a front cylinder 6 and a rear cylinder 7. The formed male screw portion 6a and the female screw portion 7a formed on the rear cylinder 7 are formed.
Are screwed into each other to be integrated. The front-side cylindrical body 6 has a relatively large-diameter hollow hole 6b opened to the male screw portion 6a side, and a center portion at the bottom of the hollow hole 6b communicating with the distal end surface. A small-diameter shaft insertion hole 6c is formed. On the other hand, the rear side cylindrical body 7 has a first hollow hole 7b opening toward the female screw portion 7a, and an inclined stepped portion 7c formed in the middle of the hole wall. It is the second hollow hole 7d.

The breaking rod 3 is inserted into the shaft insertion hole 6c of the front side cylindrical body 6 with its front end facing outside. The breaking rod 3 is preferably made of a cemented carbide such as silicon carbide or tungsten. The breaking rod 3 has a sharp tip at the tip 3a, a flange 3b is integrally formed at an intermediate portion, and a relatively narrow portion at the rear end. The engaging step 3c is formed by forming a shaft having a small diameter. In the assembled state, as shown in FIG. 2, the front end 3a is inserted from the opening side of the front side cylinder 6, and the flange 3b is held so as not to come off by colliding with the bottom of the hollow hole 6b. It has become. The breaking rod 3 has the flange 3b
The auxiliary spring 11 is externally fitted with the one side contact surface,
The breaking rod 3 is biased forward.

On the other hand, the first hollow hole 7b of the rear side cylinder 7
Inside, the sliding ring 8 is fitted externally to the breaking rod 3 and the male screw portion 6a of the front side cylinder 6 is used as a seat.
Is provided. The sliding ring 8 always keeps the axis of the breaking rod 3 at the center of the first hollow hole 7b while sliding in the first hollow hole 7b during the glass breaking operation.

Further, in the rear side hollow holes 7b and 7d, a hammer block 9 which is detachably engageable with the engaging step 3c of the breaking rod 3 and applies a hit to the breaking rod 3, and the hammer block 9 A resilient spring 12 for firing the block 9 forward is inserted therein.

The hammer block 9 is described in detail in FIG.
As shown in the figure, the hammer body 9 is a substantially cylindrical member.
A and a relatively small-diameter constricted portion 9 connected to the front side thereof.
B and a tapping flange 9 connected to the constricted portion 9B.
C, and has a hollow hole 9a in a range extending from the front surface of the tapping flange 9C to the hammer body 9A.
Are formed, and a crossing hole 9b is formed in the constricted portion 9B at right angles to the axis. This cross hole 9
b, the through hole 1 is located at a position eccentric to the hollow hole 9a.
The trigger piece 10 formed with Oa is inserted, and the engaging step 3c of the breaking rod 3 is engaged with the edge of the through hole 10a. Further, a roll spring 13 having a C-shaped cross section is externally fitted to the constricted portion 9B so as to cover the side opposite to the insertion opening of the trigger piece 10, and urges in the anti-retracting direction with the retraction of the trigger piece 10. It has become.

In the assembled state, as shown in FIG. 2, the resilient spring 12 is inserted deep into the second hollow hole 7d of the rear cylinder 7, and biased forward by the resilient spring 12. The hammer block 9 is installed in the state in which it is set. Further, the rear end of the breaking rod 3 is inserted into the hollow hole 9a of the hammer block 9, and the breaking rod 3
Is engaged with the edge of the through hole 10a of the trigger piece 10. A grip 14 having a wavy outer surface is integrally press-fitted to the outer peripheral surface of the rear cylinder 7 so as to prevent slippage when the cylinder 5 is gripped and pressed against the glass surface. I have.

In the present glass breaker 1, a flexible glass contact member 4 made of rubber, flexible resin, or the like is provided at the front end of the front-side cylindrical body 6. The glass is always held orthogonally to the surface of the glass G, and at the same time, side slip at the time of a pressing operation is prevented, and scattered glass fragments are prevented from scattering from the glass hitting portion.

The illustrated flexible glass contact member 4 is a substantially funnel-shaped member whose diameter is gradually increased toward the distal end, and the mounting portion 4b on the proximal end is formed of the front side cylindrical body. A ring-shaped glass contact surface portion 4a having a certain width is formed in the glass contact portion at the front end, which is fixed to the front portion of the front end portion 6 in order to effectively prevent side slip.

Hereinafter, an operation method for breaking a window glass with the glass breaking tool 1 will be described in detail along with an operation mechanism with reference to FIG.

First, as shown in FIG. 3A, the grip 14 of the rear cylinder 7 is gripped by hand, and the contact surface 4a of the flexible glass contact member 4 contacts the glass G surface. Once in the contacted state, the sheet is pressed against the glass G as shown in FIG. The relative position of the breaking rod 3 does not change because the tip 3a is in contact with the glass G surface, and the engaging step 3c of the breaking rod 3 is engaged with the through-hole edge of the trigger piece 10 in the hammer block 9. The sliding ring 8 and the hammer block 9 are in an immobile state because they are in contact with each other. Is accumulated. The flexible glass contact member 4
Is deformed into a predetermined shape as the cylinder 5 advances, so that the movement of the cylinder 5 is not hindered.

When the cylinder 5 is continuously pushed toward the glass G side, the trigger piece 10 is moved to the first hollow hole 7b of the rear cylinder 7.
Step 7c formed at the boundary between the first hollow hole 7d and the second hollow hole 7d
And reaches the side of the second hollow hole 7d having a relatively small diameter, the trigger piece 10 slides to the deep side (upward in the drawing), and the engaging step 3c of the breaking rod 3 and the trigger piece 10 The engagement with the through hole edge is released, and the rear end of the breaking rod 3 is inserted into the hollow hole 9 a formed in the hammer block 9.

In the hammer block 9 in which the engagement of the breaking rod 3 is released, the resilient force accumulated in the resilient spring 12 is released at a stretch, and is released toward the glass surface. And
When the bottom of the hollow hole 9a formed in the hammer block 9 hits the rear end of the breaking rod 3, the glass G is hit and is instantaneously broken.

Incidentally, the flexible glass contact member 4 may be provided with a function of adsorbing glass.
FIG. 5 shows an example of this. When the glass G is pressed, the flexible glass contact member 4 is attracted to the glass G when the glass G is pressed by forming an arc-shaped concave portion 4c on the tip end surface of the glass contact surface 4a. Then, skidding is effectively prevented. Particularly, in a situation where the glass breaking operation can be performed only from the restrained posture state at the time of the accident, the glass G
Even if it is necessary to press the cylinder 5, the tip 3a of the breaking rod 3 can be pressed against the glass surface side without causing the tip 3a of the breaking rod 3 to slide sideways.

It is also assumed that the seat belt cannot be released due to a failure of the seat belt hook at the time of the accident. However, as shown in FIG. 6, a cutting blade 15 is provided at the rear end of the rear cylinder 7. If it is fixed in an implanted state, the seat belt can be cut and escaped. Note that reference numeral 16
Is a detachable protective cap material that covers the cutting blade 15.

Further, the glass abutting member is not necessarily required to be flexible, and may have a mechanical structure as long as the structure does not hinder the movement of the cylindrical body 5. FIG. 7 shows an example of this, which is screwed to the front side cylinder 6 with a screw portion 20a, and the front side cylinder 6
Cylindrical member 2 having an annular space formed on the outer periphery of the member toward the distal end side
0 and a glass contact member 4 ′ made of metal or hardened resin is provided so as to be movable along the axial direction with respect to the front side cylinder 6. The engagement step 20b formed at the opening of the annular space and the engagement step formed at the base end of the glass contact member 4 'engage with each other so that the glass contact member 4' does not come off. Are held and springs 21, 21... For urging the glass contact member 4 'toward the distal end side are provided. With such a structure, when the cylinder 5 is gripped and moved toward the glass surface side, the glass contact member 4 ′ slides rearward with the movement of the cylinder 5. Does not hinder movement.

The structure of the glass breaking tool 1 has been described in detail above. The function required for the glass breaking tool 1 is that the cylinder 5 is pressed against the glass surface and moved so that the breaking rod 3 is immersed. At this time, any structure may be used as long as the spring energy stored in the spring spring 12 installed therein is released at a stroke at a stage of immersion, and the hammer block 9 is fired to strike the rear end of the breaking rod 3. Various changes and improvements can be made to the shapes and detailed structures of the trigger mechanism (release mechanism) and the breaker.

[0030]

As described above, according to the present invention, the present invention is lightweight, compact, and easy to store in a vehicle.
Further, even in a situation where the arm cannot be lifted, the window glass can be reliably and easily broken with a single operation.

[Brief description of the drawings]

FIG. 1 is a perspective view of a glass breaking tool 1 according to the present invention.

FIG. 2 is a longitudinal sectional view thereof.

FIG. 3 is a stage diagram showing a glass breaking operation procedure and an operation mechanism thereof.

FIG. 4 is an exploded perspective view of the hammer block 9;

FIG. 5 is a modified example of the flexible glass contact member 4.

FIG. 6 is a modified example in which a seat belt cutting blade 15 is provided.

FIG. 7 is a longitudinal sectional view showing a structural example of an inflexible glass contact member 4 '.

FIG. 8 is a perspective view showing a conventional emergency flame tube with a glass breaking function.

FIG. 9 is a perspective view showing a conventional glass breaking hammer.

[Explanation of symbols]

1 ... Glass breaker, 2 ... Grip part, 3 ... Breaking rod, 3c
... engagement step, 4 ... flexible glass contact member, 4 '... glass contact member, 5 ... cylinder, 6 ... front side cylinder, 7 ... rear side cylinder, 8 ... sliding ring, 9: hammer block, 10: trigger piece, 11: auxiliary spring, 12: resilient spring, 13: roll spring, 14: grip, 15: cutting blade, 16: protective cap, G: window glass (glass)

────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission Date] October 2, 2001 (2001.10.
2)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Full text

[Correction method] Change

[Correction contents]

[Document Name] Statement

[Title of the Invention] Glass breaker for emergency escape

[Claims]

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an emergency escape glass breaker which is used when a door is opened due to an accident or breakdown of a car or the like and the escape cannot be achieved by breaking a window glass.

[0002]

2. Description of the Related Art There have been proposed escape hammers and glass breakers which are always kept in a vehicle and are used to break a window glass of the vehicle and escape in an emergency such as a submersion accident, a collision accident or a breakdown. ing. For example, Japanese Patent Application Laid-Open No. 10-3143
No. 27 proposes an emergency flame tube 50 with a glass breaking function provided with a sharp-pointed projection 51 at the bottom or tip of an emergency safety flame tube for an automobile as shown in FIG. 8 (conventional example 1). Japanese Patent Application Laid-Open No. 10-337679 discloses a glass breaking hammer 53 in which a head portion 52 is formed in a V-shape so that glass can be broken by leverage as shown in FIG. 9 (conventional example 2). Has been proposed.

[0003]

However, in the case of a type in which the window glass is broken by applying a direct blow to the window glass as in the former prior art example 1, it is light and compact and is stored in the vehicle. Although it has advantages such as easiness, the window glass made of tempered glass cannot be destroyed unless the window glass is hit hard, and in some cases, it cannot be destroyed unless it is hit at right angles to the window glass surface. In particular, if the occupant is female and weak, several hits can eventually result in destruction. Also, when the car rolls over during an accident, the seat belt cannot be removed, and the posture is restrained by the seat belt. Therefore, the arm cannot swing greatly or the window glass is hit at right angles. In addition, it is expected that it will not be possible to do so, and there is a problem that, if gasoline leaks and there is a danger of fire, it takes a lot of time to destroy the window glass, resulting in loss of life.

On the other hand, in the latter case of the hammer type of the conventional example 2, since the weight is somewhat heavy, if it can be swung up in the vehicle, the glass can be broken by a single blow in most cases. It seems that there are problems such as poor storage and appearance if you keep it in the car, and as described above, you can not remove the seat belt and the posture is restrained by the seat belt, If the angle f is not greatly changed, problems such as difficulty in breaking the window glass will occur.

Further, in the case of the conventional glass breaking tool, when the window glass is hit, small pieces may fly from the hitting portion and hurt the occupant's eyes. There is also a problem such as not being able to strike.

[0006] Therefore, a main object of the present invention is to provide a lightweight, compact and easy to store in a vehicle and to be able to swing up an arm, even if it is weak, in any posture. It is an object of the present invention to provide a window glass breaking tool that can reliably and easily break a window glass in a single operation even in a situation.

[0007]

SUMMARY OF THE INVENTION The present invention for solving the above-mentioned problem is characterized in that, at the front side position, a cylindrical body having a sharply protruding breaking rod is gripped by hand and the breaking rod has a leading end. If you press the glass further from the state of touching the glass surface,
The breaking rod is immersed in the cylindrical body, and is hit through the breaking rod at a certain immersion depth, and is an emergency escape glass breaking tool for breaking glass, wherein the glass breaking tool is A rear end portion of the breaking rod is engaged with the inside of the body, and a hammer block including a release mechanism for releasing the engagement at a predetermined immersion depth with the immersion of the breaking rod is provided. With a resilient spring located on the back side, with the pressing movement of the cylindrical body toward the glass surface side, the resilient spring is contracted and resilient energy is accumulated, and reaches a predetermined immersion depth, The operation of the release mechanism releases the engagement of the rear end of the breaking rod, and a mechanism for hitting the rear end of the breaking rod by firing the hammer block by releasing the spring energy, and The front of the body, the substantially orthogonally to hold the glass surface in contact with the glass breaking tool to the glass surface
Both are flexible members that are deformed by the pressing movement of the cylinder.
The glass contact member is provided.

[0008] The glass breaking tool of the present invention, as in the prior art,
Instead of the occupant hitting the glass with human power, the glass can be easily broken by the mechanically applied striking force merely by gripping the cylinder and pressing against the glass surface. Therefore, the glass can be easily broken by a single operation without swinging the arm, even if the posture is weak and impossible.

Further, when only destruction rods sharpened protrusion is skidding is concerned, abut against the glass surface Tomo
A flexible member that is deformed in accordance with the pressing movement of the cylindrical body.
Due to the provision of a glass abutment member integrally that always a glass breaking tool with will be able orthogonally held to the glass surface, it is possible to suppress the sideslip effectively by contact of the glass abutment member Thus, it becomes possible to apply the impact of the breaking rod orthogonally to the glass surface, that is, effectively.

In this case, if an arcuate concave portion is formed on the glass contact surface of the flexible glass contact member for attraction to the glass surface, side slip can be more effectively prevented. Further, with the above structure, it can be made lightweight and compact, easy to store in the vehicle, and good in appearance.

Also, a seat belt is provided at a rear end of the cylindrical body.
If the cutting blade is embedded and fixed, the seat belt locking device will be damaged.
Even if you get in trouble, escape by cutting the seat belt
Will be able to

[0012]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a perspective view of a glass breaking tool 1 according to the present invention, and FIG. 2 is a longitudinal sectional view thereof.

In the present glass breaker 1, the grip portion 2 is gripped by hand, and the distal end surface 4a of the flexible glass contact member 4 mounted on the distal end is a window glass G (hereinafter, also simply referred to as glass). When pressed against the window glass G side, the cylindrical body 5
Slides toward the window glass, in other words, the breaking rod 3 is immersed in the cylindrical body 5, and the spring inserted in the cylindrical body 5 stores resilient energy, and is compressed by the pressing. The spring is released at a certain immersion time, and the above-mentioned spring energy is released at a stretch, so that the adjacent hammer block in the cylinder 5 is fired toward the glass surface side, and the rear end of the breaking rod 3 is released. The glass G is broken by hitting, and the flexible glass abutting member 4 always holds the glass G orthogonally to the glass surface, suppresses the sliding in the lateral direction, and reduces the occupant's Even if it is weak, or even in a situation where the arm cannot be lifted, the window glass G can be reliably destroyed by one operation without requiring any force.

Hereinafter, the structure of the glass breaking tool 1 will be described in detail. The cylinder 5 is composed of a front cylinder 6 and a rear cylinder 7. The formed male screw portion 6a and the female screw portion 7a formed on the rear cylinder 7 are formed.
Are screwed into each other to be integrated. The front-side cylindrical body 6 has a relatively large-diameter hollow hole 6b opened to the male screw portion 6a side, and a center portion at the bottom of the hollow hole 6b communicating with the distal end surface. A small-diameter shaft insertion hole 6c is formed. On the other hand, the rear side cylindrical body 7 has a first hollow hole 7b opening toward the female screw portion 7a, and an inclined stepped portion 7c formed in the middle of the hole wall. It is the second hollow hole 7d.

The breaking rod 3 is inserted into the shaft insertion hole 6c of the front side cylindrical body 6 with its front end facing outside. The breaking rod 3 is preferably made of a cemented carbide such as silicon carbide or tungsten. The breaking rod 3 has a sharp tip at the tip 3a, a flange 3b is integrally formed at an intermediate portion, and a relatively narrow portion at the rear end. The engaging step 3c is formed by forming a shaft having a small diameter. In the assembled state, as shown in FIG. 2, the front end 3a is inserted from the opening side of the front side cylinder 6, and the flange 3b is held so as not to come off by colliding with the bottom of the hollow hole 6b. It has become. The breaking rod 3 has the flange 3b
The auxiliary spring 11 is externally fitted with the one side contact surface,
The breaking rod 3 is biased forward.

On the other hand, the first hollow hole 7b of the rear side cylinder 7
Inside, the sliding ring 8 is fitted externally to the breaking rod 3 and the male screw portion 6a of the front side cylinder 6 is used as a seat.
Is provided. The sliding ring 8 always keeps the axis of the breaking rod 3 at the center of the first hollow hole 7b while sliding in the first hollow hole 7b during the glass breaking operation.

Further, in the rear side hollow holes 7b and 7d, a hammer block 9 which is detachably engageable with the engaging step 3c of the breaking rod 3 and applies a hit to the breaking rod 3, and the hammer block 9 A resilient spring 12 for firing the block 9 forward is inserted therein.

The hammer block 9 is described in detail in FIG.
As shown in the figure, the hammer body 9 is a substantially cylindrical member.
A and a relatively small-diameter constricted portion 9 connected to the front side thereof.
B and a tapping flange 9 connected to the constricted portion 9B.
C, and has a hollow hole 9a in a range extending from the front surface of the tapping flange 9C to the hammer body 9A.
Are formed, and a crossing hole 9b is formed in the constricted portion 9B at right angles to the axis. This cross hole 9
b, the through hole 1 is located at a position eccentric to the hollow hole 9a.
The trigger piece 10 formed with Oa is inserted, and the engaging step 3c of the breaking rod 3 is engaged with the edge of the through hole 10a. Further, a roll spring 13 having a C-shaped cross section is externally fitted to the constricted portion 9B so as to cover the side opposite to the insertion opening of the trigger piece 10, and urges in the anti-retracting direction with the retraction of the trigger piece 10. It has become.

In the assembled state, as shown in FIG. 2, the resilient spring 12 is inserted deep into the second hollow hole 7d of the rear cylinder 7, and biased forward by the resilient spring 12. The hammer block 9 is installed in the state in which it is set. Further, the rear end of the breaking rod 3 is inserted into the hollow hole 9a of the hammer block 9, and the breaking rod 3
Is engaged with the edge of the through hole 10a of the trigger piece 10. A grip 14 having a wavy outer surface is integrally press-fitted to the outer peripheral surface of the rear cylinder 7 so as to prevent slippage when the cylinder 5 is gripped and pressed against the glass surface. I have.

In the present glass breaker 1, a flexible glass contact member 4 made of rubber, flexible resin, or the like is provided at the front end of the front-side cylindrical body 6. The glass is always held orthogonally to the surface of the glass G, and at the same time, side slip at the time of a pressing operation is prevented, and scattered glass fragments are prevented from scattering from the glass hitting portion.

The illustrated flexible glass contact member 4 is a substantially funnel-shaped member whose diameter is gradually increased toward the distal end, and the mounting portion 4b on the proximal end is formed of the front side cylindrical body. A ring-shaped glass contact surface portion 4a having a certain width is formed in the glass contact portion at the front end, which is fixed to the front portion of the front end portion 6 in order to effectively prevent side slip.

Hereinafter, an operation method for breaking a window glass with the glass breaking tool 1 will be described in detail along with an operation mechanism with reference to FIG.

First, as shown in FIG. 3A, the grip 14 of the rear cylinder 7 is gripped by hand, and the contact surface 4a of the flexible glass contact member 4 contacts the glass G surface. Once in the contacted state, the sheet is pressed against the glass G as shown in FIG. The relative position of the breaking rod 3 does not change because the tip 3a is in contact with the glass G surface, and the engaging step 3c of the breaking rod 3 is engaged with the through-hole edge of the trigger piece 10 in the hammer block 9. The sliding ring 8 and the hammer block 9 are in an immobile state because they are in contact with each other. Is accumulated. The flexible glass contact member 4
Is deformed into a predetermined shape as the cylinder 5 advances, so that the movement of the cylinder 5 is not hindered.

When the cylinder 5 is continuously pushed toward the glass G side, the trigger piece 10 is moved to the first hollow hole 7b of the rear cylinder 7.
Step 7c formed at the boundary between the first hollow hole 7d and the second hollow hole 7d
And reaches the side of the second hollow hole 7d having a relatively small diameter, the trigger piece 10 slides to the deep side (upward in the drawing), and the engaging step 3c of the breaking rod 3 and the trigger piece 10 The engagement with the through hole edge is released, and the rear end of the breaking rod 3 is inserted into the hollow hole 9 a formed in the hammer block 9.

In the hammer block 9 in which the engagement of the breaking rod 3 is released, the resilient force accumulated in the resilient spring 12 is released at a stretch, and is released toward the glass surface. And
When the bottom of the hollow hole 9a formed in the hammer block 9 hits the rear end of the breaking rod 3, the glass G is hit and is instantaneously broken.

Incidentally, the flexible glass contact member 4 may be provided with a function of adsorbing glass.
FIG. 5 shows an example of this. When the glass G is pressed, the flexible glass contact member 4 is attracted to the glass G when the glass G is pressed by forming an arc-shaped concave portion 4c on the tip end surface of the glass contact surface 4a. Then, skidding is effectively prevented. Particularly, in a situation where the glass breaking operation can be performed only from the restrained posture state at the time of the accident, the glass G
Even if it is necessary to press the cylinder 5, the tip 3a of the breaking rod 3 can be pressed against the glass surface side without causing the tip 3a of the breaking rod 3 to slide sideways.

It is also assumed that the seat belt cannot be released due to a failure of the seat belt hook at the time of the accident. However, as shown in FIG. 6, a cutting blade 15 is provided at the rear end of the rear cylinder 7. If it is fixed in an implanted state, the seat belt can be cut and escaped. Note that reference numeral 16
Is a detachable protective cap material that covers the cutting blade 15.

Further, the glass abutting member is not necessarily required to be flexible, and may have a mechanical structure as long as the structure does not hinder the movement of the cylindrical body 5. FIG. 7 shows an example of this, which is screwed to the front side cylinder 6 with a screw portion 20a, and the front side cylinder 6
Cylindrical member 2 having an annular space formed on the outer periphery of the member toward the distal end side
0 and a glass contact member 4 ′ made of metal or hardened resin is provided so as to be movable along the axial direction with respect to the front side cylinder 6. The engagement step 20b formed at the opening of the annular space and the engagement step formed at the base end of the glass contact member 4 'engage with each other so that the glass contact member 4' does not come off. Are held and springs 21, 21... For urging the glass contact member 4 'toward the distal end side are provided. With such a structure, when the cylinder 5 is gripped and moved toward the glass surface side, the glass contact member 4 ′ slides rearward with the movement of the cylinder 5. Does not hinder movement.

The structure of the glass breaking tool 1 has been described in detail above. The function required for the glass breaking tool 1 is that the cylinder 5 is pressed against the glass surface and moved so that the breaking rod 3 is immersed. At this time, any structure may be used as long as the spring energy stored in the spring spring 12 installed therein is released at a stroke at a stage of immersion, and the hammer block 9 is fired to strike the rear end of the breaking rod 3. Various changes and improvements can be made to the shapes and detailed structures of the trigger mechanism (release mechanism) and the breaker.

[0030]

As described above, according to the present invention, the present invention is lightweight, compact, and easy to store in a vehicle.
Further, even in a situation where the arm cannot be lifted, the window glass can be reliably and easily broken with a single operation.

[Brief description of the drawings]

FIG. 1 is a perspective view of a glass breaking tool 1 according to the present invention.

FIG. 2 is a longitudinal sectional view thereof.

FIG. 3 is a stage diagram showing a glass breaking operation procedure and an operation mechanism thereof.

FIG. 4 is an exploded perspective view of the hammer block 9;

FIG. 5 is a modified example of the flexible glass contact member 4.

FIG. 6 is a modified example in which a seat belt cutting blade 15 is provided.

FIG. 7 is a longitudinal sectional view showing a structural example of an inflexible glass contact member 4 '.

FIG. 8 is a perspective view showing a conventional emergency flame tube with a glass breaking function.

FIG. 9 is a perspective view showing a conventional glass breaking hammer.

[Explanation of Signs] 1 ... Glass breaking tool, 2 ... Grip part, 3 ... Breaking rod, 3c
... engagement step, 4 ... flexible glass contact member, 4 '... glass contact member, 5 ... cylinder, 6 ... front side cylinder, 7 ... rear side cylinder, 8 ... sliding ring, 9: hammer block, 10: trigger piece, 11: auxiliary spring, 12: resilient spring, 13: roll spring, 14: grip, 15: cutting blade, 16: protective cap, G: window glass (glass)

Claims (5)

[Claims] When a cylindrical body provided with a breaking rod having a sharp protruding tip at a front side position is gripped by hand, and the tip of the breaking rod is pressed against the glass surface further from the glass surface,
The breaking rod is immersed in the cylinder, and a blow is applied through the breaking rod at a certain immersion depth to break glass, and the glass breaking tool is an emergency escape glass breaking tool. A rear end portion of the breaking rod is engaged with the inside of the body, and a hammer block including a release mechanism for releasing the engagement at a predetermined immersion depth with the immersion of the breaking rod is provided. With a resilient spring located on the back side, with the pressing movement of the cylindrical body toward the glass surface side, the resilient spring is contracted and resilient energy is accumulated, and reaches a predetermined immersion depth, When the release mechanism is actuated, the rear end of the breaking rod is disengaged, and the rear end of the breaking rod is hit by firing of the hammer block by releasing the spring energy. The front of the cylindrical body, emergency escape glass breaking tool, characterized in that a glass abutting member for holding substantially orthogonally abuts the glass breaking tool with respect to the glass surface to the glass surface. 2. The glass breaker for emergency escape according to claim 1, wherein said glass contact member is a flexible member which is deformed as the cylindrical body is pressed and moved. 3. The glass breaker for emergency escape according to claim 2, wherein an arc-shaped concave portion is formed on the glass contact surface of the flexible glass contact member for suction to the glass surface. 4. The glass breaking tool for emergency escape according to claim 1, wherein said glass contact member is inflexible and moves to the rear side of the cylindrical body with the pressing movement of the cylindrical body. 5. An emergency escape glass breaking tool according to claim 1, wherein a seat belt cutting blade is buried and fixed at a rear end portion of said cylindrical body.