JP2010036267A - Window glass breaking tool for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a safe window glass breaking tool easy to be operated since the number of processes until striking the window glass is short when the tool is used. <P>SOLUTION: In this window glass breaking tool 6, a holding part 8 is fixed to a recessed curved surface of a protective member 7 formed by a projecting curved surface 7a and the recessed curved surface. The protective member 7 is formed to be wider than the holding part 8. The holding part 8 is substantially U-shaped, and the one end is passed through the protective member 7 and is fixed by projecting a hammer part 10 to the projecting curved surface 7a side, while the other end of the holding part 8 is fixed to the protective member 7 with a fixed bolt. In a state in which the window glass breaking tool 6 is removably fitted at a peripheral edge of a fitting hole of an inner wall by a locking part 7d at a peripheral edge of the protective member 7 and engaging claw parts 15a, 15b and 15c of the projecting curved surface 7a, the hammer part 10 is located on a rear face side of the inner wall. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a vehicle window glass splitting tool for breaking window glass of various vehicles such as construction machines such as hydraulic excavators and automobiles.

Conventionally, for example, when a hydraulic excavator of a construction machine accidentally falls during operation or a collision accident occurs, it is difficult to escape from the cabin when the door of the cabin is not opened due to deformation or the like. In addition, even in an automobile or the like, it is difficult to escape from the vehicle even when the door or the window glass cannot be opened due to an accident that the electricity is not energized or the door is deformed.
Therefore, a window glass splitting tool that breaks the window glass so that a driver or the like can escape from the vehicle has been proposed and installed inside the vehicle.

  As such a window glass splitting tool, for example, those described in Patent Documents 1 to 3 below have been proposed. The window glass splitting devices described in Patent Documents 1 and 2 have a configuration in which a rod-shaped split member having a hammer at its tip is rotatably attached to a protective member. In a normal state, the split member is attached to a bracket or the like provided on the body of the automobile, and when the accident is used, the protective member is rotated to remove the split member from the bracket. It is rotated so that the gripping portion of the split member is gripped and a hammer is hit against the window glass to be split.

Further, in the window glass splitting tool described in Patent Document 3, a hammer case is attached to a sun visor of an automobile. In an emergency, the sun visor is removed from the inner wall of the automobile, and the tip of the hammer protrudes from the sun visor with the hammer rotated at a substantially right angle with respect to the hammer case to break the window glass.
In these cases, when the window glass is broken with a hammer, it is possible to prevent the broken pieces of glass from being scattered on the driver's hands and arms with a protective member or a sun visor.
JP-A-8-11064 Japanese Patent Laid-Open No. 9-47980 JP 2001-322431 A

However, the window glass splitting tools described in Patent Documents 1 to 3 described above are different in the holding form attached to the inside of the vehicle and the usage form for breaking the window glass. It is necessary to perform a three-step operation that is removed from the wall surface, and the hammer is rotated at a substantially right angle with respect to the protective member, the sun visor, etc., and the hammer is regripped to hit the window glass. Therefore, in the event of an emergency such as an accident, a problem arises in that it takes time to break the window glass with the window glass splitting tool.
Furthermore, since the conventional window glass splitting tool has a through-hole or the like for rotating the hammer at a substantially right angle with respect to the protective member or the sun visor to project the tip of the hammer, the through-hole or the like and the hammer are struck when the window glass is hit. There was a risk of glass fragments flying to the driver through the gap between the two. Moreover, the window glass splitting tool described in Patent Document 3 has a problem in that if the hammer is mistakenly rotated, the sun visor is broken and cannot be returned to the original position in the glass case.
In addition, the hammer is rotatable with respect to the protective member, the sun visor and the like, so that it is unstable, and it is difficult to operate the glass piece remaining on the edge of the window. Moreover, since these hammers are gripped and hit like an ice pick at a substantially right angle with respect to the protective member, the sun visor, etc., it is necessary to grip the hammer easily and firmly.

  In view of such circumstances, an object of the present invention is to provide a vehicle window glass breaker that has a short number of steps until the window glass is struck during use and is safe and easy to operate.

In the vehicle window glass splitting tool according to the present invention, the gripping portion is fixed to the protection member, the protection member is formed wider than the gripping portion, and the hammer portion protrudes on the opposite side of the gripping portion with respect to the protection member. It is provided.
According to the present invention, the window glass can be broken by grasping the gripping portion of the window glass splitting tool and removing it from the attachment portion and hitting the window glass as it is. Therefore, since the window glass can be broken by a two-step operation, a quick operation can be performed in an emergency. Since the gripping part is fixed to the protective member, it is not necessary to rotate the hammer part or form a through hole in the protective member when breaking the window glass, as compared with the conventional window glass splitting tool. There is no possibility that it will fly into the user's hand. Further, after grasping and removing the grip portion of the window glass splitting tool, it is possible to tap the grip portion as it is without having to grasp the grip portion again or firmly grip it. Moreover, the number of parts is very small.

Further, the gripping portion is characterized in that one end side penetrates the protection member and the hammer portion is fixed, and the other end side is fixed to the protection member.
Therefore, the operation of the window glass splitting tool is easy, and the window glass can be broken as it is by grasping the gripping portion and taking it out.
In addition, it is preferable that the protection member is detachably engaged with and held on the inner wall of the vehicle, the grip portion is exposed on the inner wall of the vehicle, and the hammer portion is located on the back side of the inner wall.
Under normal conditions, the hammer is not exposed in the cab, so it is safe without accidental contact or collision.
Further, a cutter may be provided on the same surface as the hammer portion with respect to the protective member.
Even in this case, since the cutter is not exposed to the operator's cab like the hammer portion, there is no risk of inadvertent contact and safety.

  The vehicle window glass splitting tool according to the present invention can be operated in two steps, that is, removal of the window glass splitting tool and the hitting of the window glass. Moreover, since the protective member, the gripping portion, and the hammer portion are fixed integrally, it is only necessary to grip and hit the gripping portion at the time of use. The number of parts is small and the configuration is simple.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
A window glass splitting tool according to an embodiment of the present invention will be described with reference to FIGS.
FIG. 1 is a partially broken perspective view of a state where a window glass splitting tool is attached to the inner wall of a hydraulic excavator cabin, FIG. 2 is a perspective view of the window glass splitting tool viewed from the gripping part side, and FIG. 4 is a cross-sectional view taken along the gripping portion of the window glass splitting tool, FIG. 5 is an enlarged view showing the hammer portion of the gripping part, and FIG. 6 is an AA line of FIG. It is sectional drawing.
In FIG. 1, a vehicle of a construction machine, such as a hydraulic excavator 1, has a window glass 4 formed on pillars 3 on front and rear surfaces and side surfaces of a cabin (cab) 2. A vehicle window glass splitting tool 6 is attached to an appropriate inner wall in the cabin 2, for example, an inner wall 5 of one pillar 3a on the back side. This window glass splitting tool 6 is an instrument for removing from the inner wall 5 and breaking the window glass 4 in case of an accident or the like.

Next, the window glass breaker 6 will be described with reference to FIGS. As shown in FIGS. 2 and 3, the window glass split tool 6 has a substantially oval shape and is curved or protruded on one surface side, and is attached in the longitudinal direction of the protection member 7, for example, approximately It is comprised with the U-shaped holding part 8. FIG. The protective member 7 is wider than the gripping portion 8 and has a plate shape in which both front and back surfaces are formed by a convex curved surface 7a and a concave curved surface 7b. The gripping portion 8 is fixed to the concave curved surface 7b side.
In FIG. 4, the tip 8 a that is one end of the gripping portion 8 passes through the through hole 9 at the tip of the protection member 7 and protrudes toward the convex curved surface 7 a, and the tip is made of a steel material such as iron, for example. The hammer 10 is fixed. The hammer 10 is formed in a substantially columnar shape, and the tip portion projects from the gripping portion 8 and is sharpened in a cone shape. As shown in FIG. 5, a pair of flange portions 8b and engaging portions 8c are formed in the vicinity of the distal end portion 8a of the gripping portion 8 at predetermined intervals in the longitudinal direction so as to protrude in directions perpendicular to each other. 8 is fixed to the protective member 7 by engaging the edge portion of the through hole 9 between the flange portion 8b and the engaging portion 8c.
In FIG. 4, the base end portion 8 e which is the other end portion of the gripping portion 8 is in contact with the base end surface portion 7 bc of the concave curved surface 7 b of the protective member 7, and is fastened through the hole 12 drilled in the base end surface portion 7 bc. 13 fixes the base end 8e.

Next, based on FIG.3 and FIG.6, the fitting structure of the window glass splitting tool 6 and the inner wall 5 of the pillar 3a of the cabin 2 is demonstrated. In the window glass splitting tool 6, a locking portion 7 d is formed over the entire periphery at the boundary peripheral edge between the convex curved surface 7 a and the concave curved surface 7 b of the protective member 7. On the convex surface 7a of the protective member 7, an appropriate number, for example, a pair of engaging claw portions 15a and 15b are formed to protrude on both sides in the longitudinal direction, and further, the engaging claw portion 15c is formed to protrude on the base end surface portion 7bc side. Has been. On the other hand, a fitting hole 16 for fitting and fixing the window glass split tool 6 is formed in the inner wall 5 of the pillar 3a (see FIGS. 1 and 6).
Then, when the window glass splitting tool 6 is gripped by the gripping portion 8 and is fitted into the fitting hole 16 of the inner wall 5, the peripheral portion of the fitting hole 16 is elastically deformed by the respective engaging claw portions 15a, 15b, and 15c. The convex curved surface 7a of the protective member 7 is pushed in, and the window glass splitting tool 6 is held in the fitted state by sandwiching the peripheral edge portion of the fitting hole 16 by the engaging claw portions 15a, 15b, 15c and the locking portion 7d. Is done. In this state, the hammer portion 10 is held on the back side of the inner wall 5 and is not exposed on the surface of the inner wall 5.
In the example shown in the figure, the locking portion 7d at the periphery of the protective member 7 is formed to be bent toward the engaging claw portions 15a to 15c in order to firmly fit the window glass split tool 6 (see FIG. 6). ).

  In order to assemble the window glass splitting tool 6, in FIG. 4, the base end portion 8 e of the gripping portion 8 is inserted into the through hole 9 on the tip end side of the protection member 7 from the base end portion 8 e, and the base end portion 8 e of the gripping portion 8 7, the peripheral edge portion of the through hole 9 is sandwiched and engaged by the flange portion 8 b and the engaging portion 8 c of the distal end portion 8 a at a position in contact with the base end surface portion 7 bc of the front end portion 7 a. At this position, the fixing bolt 13 may be inserted from the hole 12 of the base end surface portion 7bc and the base end portion 8e of the gripping portion 8 may be screwed and fixed.

The window glass splitting tool 6 according to the present embodiment has the above-described configuration, and its usage will be described.
When the excavator 1 cannot be opened due to deformation of the door of the cabin 2 due to an accident or the like, for example, the driver in the cabin 2 grasps and pulls the grip portion 8 of the window glass breaker 6 attached to the column 3a. And the engaging claw portions 15a to 15c engaged with the fitting hole 16 of the inner wall 5 are elastically deformed to disengage the peripheral edge portion of the fitting hole 16, and the window glass cutting tool 6 is taken out. It is.
Next, the window glass 4 is broken by the hammer portion 10 by hitting the window glass 4 with the window glass splitting tool 6 while holding the holding portion 8. Even if broken glass splatters when the window glass 4 is broken, the protective member 7 can protect the user's hands and arms. The glass fragments are safe because they hit the convex curved surface 7a without the through-holes of the protective member 7 and scatter to the peripheral part away from the user.
Glass fragments remaining on the window glass 4 can be removed by hitting or pushing the protective member 7. Thus, the driver can escape from the window glass 4 to the outside.

  As described above, according to the window glass splitting tool 6 according to the present embodiment, the window glass 4 can be broken by the operation of taking out the window glass splitting tool 6 from the inner wall 5 of the cabin 2 and the two operations of hitting the window glass 4. Can escape quickly in an emergency. Moreover, since the hammer portion 10 is integrally fixed to the gripping portion 8, the holding strength of the hammer portion 10 is high, and it is only necessary to hit the window glass 4 while holding the gripping portion 8 in use. There is no need to rotate the hammer and remove it after removing the split tool from the mounting part like a tool. Further, since the window glass splitting tool 6 is constituted by the protective member 7 and the grip portion 8 to which the hammer portion 10 is fixed, the configuration is simple, the number of parts is small, and the assembly is easy.

Next, although the modification of the window glass splitting tool 6 by embodiment mentioned above is demonstrated, the description is abbreviate | omitted using the same code | symbol for the same part and member as the window glass splitting tool 6 by above-mentioned embodiment.
FIG. 7 shows a window glass splitting tool 18 according to a first modification. In the drawing, an arm portion 19 is formed in the vicinity of the base end portion 8 e of the grip portion 8. The distal end portion of the arm portion 19 is divided into two forks. The first branch portion 19a abuts on the concave curved surface 7b of the protection member 7, and the second branch portion 19b penetrates the protection member 7 and protrudes from the convex curved surface 7a. Yes. A cutter 20 is provided between the first branch part 19a and the second branch part 19b for cutting, for example, a seat belt.
In addition, as for the arm part 19, the 1st branch part 19a may also protrude through the convex curved surface 7a.
According to this modification, even when a seat belt or the like is provided in a vehicle such as an automobile on which the window glass divider 18 is mounted, the cutting of the seat belt by the window glass divider 18 and the destruction of the window glass 4 are quickly performed. Yes. Moreover, in this modified example, the hammer portion 10 and the cutter 20 are located on the back surface side of the inner wall 5 of the cabin 2 and are not exposed on the surface of the inner wall 5 in a storage state where the window glass splitting tool 18 is attached to the inner wall 5 of the vehicle. It is safe.

  As another modification, the grip 8 of the windowpane 6 does not necessarily have a configuration in which both ends are fixed to the protective member 7 as in the above-described embodiment. A cantilever structure in which a part of the gripping portion 8 including the base end portion 8e is cut off if the distal end portion 8a including at least the hammer portion 10 is fixed to the protective member 7 by an appropriate fixing means such as a fastening bolt or welding. But you can. Further, the protective member 7 does not need to have an uneven curved surface shape, and may have a flat plate shape or the like.

It is a partially broken perspective view of the state which attached the window glass splitting tool by the embodiment of the present invention to the cabin inner wall of a hydraulic excavator. It is the perspective view which looked at the window glass splitting tool from the holding part side. It is the perspective view which looked at the window glass splitting tool from the hammer part side. It is sectional drawing along the holding part of the window glass splitting tool. It is an enlarged view which shows the hammer part attached to the holding part of a window glass splitting tool. It is the sectional view on the AA line of FIG. 3 which shows the attachment structure of a window glass splitting tool. It is a longitudinal cross-sectional view which shows the 1st modification of the window glass splitting tool by embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Hydraulic excavator 2 Cabin 4 Window glass 5 Inner wall 6, 18 Window glass splitting tool 7 Protective member 8 Grip part 10 Hammer part 15a, 15b, 15c Engagement claw part 16 Fitting hole 20 Cutter

Claims (4)

  A gripping portion is fixed to the protection member, the protection member is formed wider than the gripping portion, and a hammer portion projects from the protection member on a side opposite to the gripping portion. Vehicle window glass splitting.   2. The vehicle window glass breaker according to claim 1, wherein one end side of the grip portion penetrates a protective member and the hammer portion is fixed, and the other end side is fixed to the protective member.   2. The state in which the protection member is detachably engaged with and held on the inner wall of the vehicle, the grip portion is exposed on the inner wall of the vehicle, and the hammer portion is located on the back side of the inner wall. 2. A windowpane for vehicles described in 2.   The vehicle window glass splitting tool according to any one of claims 1 to 3, wherein a cutter is provided on a surface on the same side as the hammer portion with respect to the protection member.

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