JP5050752B2 - Open / close window glass breakage detector - Google Patents

Description

  The present invention relates to a breakage detection device for an openable window glass.

In patent document 1, the apparatus which detects the crack of the window glass of a vehicle for theft prevention is disclosed. In this apparatus, as shown in FIG. 10, when the window glass 100 is in the fully closed position where the window opening is closed, the carrier plate 111 of the cable type window regulator 110 that supports the window glass 100 is attached to the window glass 100. When the window glass 100 is broken, the restriction by the stopper pin 105 provided on the window glass 100 and the locking portion 106 on the vehicle body side is released, and the carrier plate 111 is released. Is moved to the closing side from the fully closed position of the window glass 100 by the compression coil spring 120, and the limit switch 130 detects this and detects the breakage of the window glass 100.
JP 11-321564 A

  However, when the window glass 100 is not in the fully closed position, that is, when the window glass 100 is slightly opened for ventilation, the detection device detects that the window glass 100 is displaced from the fully closed position to the closed side. For this reason, it was not possible to detect breakage of the window glass 100.

  The present invention has been made under such a background, and an object of the present invention is to provide an openable window glass breakage detection device capable of detecting breakage of a window glass even when the window glass is not in a fully closed position. It is to provide.

In the first aspect of the present invention, in the breakage detecting device for an openable window glass that detects the breakage of the window glass that can freely open and close the opening of the vehicle, the window glass is moved to move along the opening of the vehicle. Breakage of the window glass, a window glass support member that supports the window glass, and a biasing means that biases the window glass support member in a twisting direction or a direction that intersects a closing direction of the window glass. Detecting means for detecting the displacement of the window glass support member accompanying the above , and the biasing means biases the window glass support member so that the window glass support member is in contact with the window glass at the site. The gist is that the window glass is energized .

  Thereby, the window glass support member supports the window glass so as to move the window glass along the opening of the vehicle. When the window glass is broken from this state, the direction in which the window glass support member is twisted by the urging means or The window glass is displaced in a direction crossing the closing direction of the window glass, and the displacement of the window glass support member is detected by the detection means. As a result, even when the window glass is not in the fully closed position, the window glass support member is displaced when the window glass is broken, so that the window glass can be detected to be broken.

  In the invention according to claim 2, the urging means urges the window glass with a force for crushing the portion of the window glass that comes into contact with the window glass support member when the window glass breaks.

  Thereby, in the past (patent document 1), the tempered glass is normally used for the window glass 100 of FIG. When an impact is applied to the window glass, it is broken in pieces, but a part of the window glass may remain without being crushed. In particular, when the window glass 100 remains on the carrier plate 111, the conventional apparatus may not detect breakage of the window glass 100 when it does not move in the closing direction. On the other hand, in the present invention, when the window glass is broken, the strength of the window glass is reduced. Even if a part of the window glass remains on the window glass supporting member, the window glass supporting member is displaced by being crushed at this portion. The breakage of the window glass can be reliably detected.

  According to a third aspect of the present invention, in the breakable window glass breakage detecting device according to the first or second aspect, the window glass is made of tempered glass. This makes it practically preferable.

  According to the present invention, breakage of the window glass can be detected even when the window glass is not in the fully closed position.

DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, an embodiment of the invention will be described with reference to the drawings.
FIG. 1 is an exploded perspective view of a right front door of a passenger car, and FIG. 2 is a schematic front view of the right front door of the passenger car.

  As shown in FIG. 1, the vehicle door 1 includes an outer panel 2 and an inner panel 3. A window glass 5 made of tempered glass is disposed between the outer panel 2 and the inner panel 3. The thickness of the window glass 5 is about 3.1 mm to 5.0 mm.

  A window regulator 10 that moves up and down the window glass 5 is housed inside the vehicle door 1. In the present embodiment, an X-arm type window regulator is used as the window regulator 10. The inner panel 3 is provided with a door part assembly hole 3a, and a modular panel 6 is provided so as to close the door part assembly hole 3a.

  The X arm type window regulator 10 is supported on the outdoor surface of the modular panel 6 via a base plate (fixed base) 11. That is, the shaft 13 of the lift arm 12 of the X arm type window regulator 10 is supported on the base plate 11 fixed to the outdoor surface of the modular panel 6. An electric drive unit 14 is fixed to the base plate 11. As shown in FIG. 2, the lift arm 12 integrally has a sector gear (driven gear) 15 centered on a shaft 13, and the electric drive unit 14 of FIG. 1 is engaged with the pinion 16 (FIG. 2). And its drive motor (not shown).

  In FIG. 2, the intermediate portion of the equalizer arm 18 is pivotally attached to the intermediate portion in the length direction of the lift arm 12 by a shaft 17. Guide pieces (rollers) 19 and 20 are pivotally attached to the upper end portions (tip portions) of the lift arm 12 and the equalizer arm 18 so as to be rotatable and tiltable, respectively. Roller) 21 is pivotally attached.

  The guide piece 19 of the lift arm 12 and the guide piece 20 of the equalizer arm 18 are movably fitted to the window glass bracket 22, and the guide piece 21 of the equalizer arm 18 is located on the outside of the modular panel 6 in FIG. It is movably guided to an equalizer arm bracket (posture maintenance rail) 23 fixed to the surface.

  On the other hand, a window glass holder 24 is fixed to the lower edge of the window glass 5 at the front and rear thereof. The window glass holder 24 moves up and down together with the window glass bracket 22.

  As shown in FIG. 2, a pair of front and rear glass runs 26 are erected. The glass run 26 is made of a rubber material. The window glass 5 is movably supported by a pair of front and rear glass runs 26 as rail members. That is, the front and rear end portions of the window glass 5 are guided by the glass run 26 and can move up and down.

  When the pinion 16 is driven forward and backward via the electric drive unit 14 of FIG. 1, the lift arm 12 swings about the shaft 13 via the sector gear 15, and as a result, the window glass bracket 22 (window glass 5) is moved. The equalizer arm 18, the guide pieces 19, 20, 21 and the equalizer arm bracket 23 are moved up and down while being held in a substantially horizontal state. Thus, the window glass 5 is raised and lowered, and the opening 4 of the vehicle can be freely opened and closed by the window glass 5.

  As shown in FIG. 3, the window glass holder 24 as a window glass support member supports the window glass 5 so as to move the window glass 5 along the opening 4 of the vehicle, and includes the window glass holder 24. A breakage detecting device 30 for an openable window glass for preventing unauthorized entry is configured. FIG. 3A is a front view of the breakage detection device 30, and FIG. 3B is a longitudinal sectional view taken along line AA in FIG. FIG. 4 is a plan view (as viewed in the direction of arrow B) of FIG. FIG. 5 is an exploded perspective view of main components.

  3 and 5, the window glass holder 24 has a glass gripping portion 24a having a U-shaped cross section and a cylindrical portion 24b protruding from the lower surface of the glass gripping portion 24a. A retaining portion 24e having a diameter larger than that of the cylindrical portion 24b is formed at the tip (lower end) of the cylindrical portion 24b. The window glass 5 is inserted into the glass gripping portion 24a having a U-shaped cross section, and is fixed by an adhesive. The holder stay 41 disposed between the window glass holder 24 and the window glass bracket 22 has a block portion 41a and a plate portion 41b protruding from the lower surface of the block portion 41a. The plate portion 41 b of the holder stay 41 is fixed to the window glass bracket 22 with a bolt 25.

  A groove 41c is formed in the block portion 41a of the holder stay 41, and the groove 41c opens on the upper surface and one side surface (the right side surface in FIG. 3A) of the block portion 41a. The cylindrical portion 24b of the window glass holder 24 is located inside the groove 41c, and the retaining portion 24e is fitted into a retaining hole 41e formed on the bottom surface of the groove 41c. In this state, the window glass holder 24 is placed on the holder stay 41. It can be turned (slided). That is, the window glass holder 24 is mounted on the holder stay 41 and supported so as to be slidable in the twisting direction. Further, since the retaining portion 24e of the window glass holder 24 is fitted in the retaining hole 41e of the holder stay 41, the window glass holder 24 and the holder stay 41 move integrally up and down.

  A torsion coil spring 42 is disposed around the cylindrical portion 24 b of the window glass holder 24. One end of the torsion coil spring 42 is locked to a stopper (projection) 24 c on the lower surface of the glass gripping portion 24 a of the window glass holder 24 and the other end is locked to a stopper (projection) 41 d on the bottom surface of the groove 41 c of the holder stay 41. Has been. The torsion coil spring 42 applies a torsional force to the window glass holder 24 around the cylindrical portion 24b. Specifically, in FIG. 4, the position of the torsion coil spring 42 from the state in which no urging force is applied to the torsion coil spring 42 indicated by the two-dot chain line as the position of the window glass holder 24, that is, the state in which it is not assembled to the window glass 5. The window glass holder 24 is rotated by 45 ° against the force (the position of the window glass holder 24 is set to a state indicated by a solid line in FIG. 4). In this state, the window glass 5 is assembled, and in this state, the window glass holder 24 is biased with a predetermined force or more in a twisting direction by a torsion coil spring 42 as biasing means.

  On the other hand, a sensor 43 is embedded in a portion of the upper surface of the block portion 41a of the holder stay 41 that faces the glass gripping portion 24a of the window glass holder 24, and the sensor 43 serving as a detecting means is located above the glass gripping portion 24a of the window glass holder 24. It is determined whether or not exists. That is, the sensor 43 can detect that the window glass 5 is broken and the window glass holder 24 is displaced in the twisting direction by the biasing force of the torsion coil spring 42.

  Regarding the sensor 43, specifically, a magnetic sensor, a contact sensor, an optical sensor, or the like can be used. In short, any sensor that can detect the displacement of the window glass holder 24 due to the breakage of the window glass 5 can be used. Good. For example, in the case of an optical sensor, a configuration in which an on / off operation is performed depending on whether or not light is emitted upward and light reflected by the glass gripping portion 24a of the window glass holder 24 is received.

As shown in FIG. 3A, an alarm device 49 is connected to the sensor 43 via a controller 48.
Next, the operation of the breakage detecting device for the open / close type window glass configured as described above, that is, the operation when the window glass 5 is broken (broken) will be described.

  In normal times, the window glass holder 24 supports the window glass 5 so as to move the window glass 5 along the opening 4 of the vehicle. At this time, as shown in FIG. 7, the window glass holder 24 is biased in the twisting direction by the torsion coil spring 42 shown in FIGS.

  When the window glass 5 is broken from this state, the window glass holder 24 is rotated by the torsion coil spring 42, that is, displaced in the twisting direction. Accordingly, as shown in FIGS. 6 and 8, the glass gripping portion 24a of the window glass holder 24 does not exist on the sensor 43, and the sensor 43 is turned on. Thereby, the breakage of the window glass 5 is detected (the displacement of the window glass holder 24 is detected by the sensor 43).

  As a result, as shown in FIG. 2, even when the window glass 5 is not in the fully closed position, the window glass holder 24 is displaced when the window glass 5 is broken, so that the breakage of the window glass 5 can be detected. That is, in the prior art (Patent Document 1), since the movement of the window glass when the window glass was fully closed was detected, it was not possible to detect the breakage of the window glass when the window glass was not in the fully closed position. In this embodiment, it is possible to detect breakage of the window glass even when the window glass is slightly opened for ventilation or the like and the window glass is not in the fully closed position.

Here, when the window glass 5 is not completely pulverized due to breakage of the window glass 5, the lower edge portion of the window glass 5 remains as follows.
The urging force of the window glass holder 24 to the window glass 5 by the torsion coil spring 42 enables the window glass 5 to be crushed at a portion where the window glass holder 24 comes into contact with the window glass 5 due to breakage. ing. Therefore, if a part of the window glass 5 made of tempered glass is broken, the window glass 5 is cracked and the strength is significantly reduced. In this state, the tempered glass (window glass 5) is partially shattered by the urging force of the torsion coil spring 42. As a result, as shown in FIGS. 6 and 8, the window glass holder 24 is rotated, that is, displaced in the twisting direction, the sensor 43 is turned on, and the displacement of the window glass holder 24 is detected.

  In the prior art (Patent Document 1), tempered glass is usually used for the window glass 100 in FIG. 10, and when an impact is applied to the window glass, it is broken into pieces. Some may remain without being crushed. In particular, when the window glass 100 remains in the vicinity of the carrier plate 111, the conventional apparatus may not detect breakage of the window glass 100 when it does not move in the closing direction. On the other hand, in this embodiment, when the window glass is broken, its strength is reduced, so that even if a part of the window glass remains in the window glass holder 24, the window glass holder 24 is displaced by being crushed at this portion. Therefore, breakage of the window glass can be reliably detected.

In this way, if the tempered glass is partially broken, it can be cracked and the strength is remarkably reduced, so that undetected and erroneous detection can be minimized.
When breakage of the window glass 5 is detected by turning on the sensor 43, the controller 48 in FIG. 3 activates the alarm device 49 to generate an alarm.

According to the above embodiment, the following effects can be obtained.
(1) A window glass holder (window glass support member) 24 that supports the window glass 5 so as to move the window glass 5 along the opening 4 of the vehicle, and a window glass holder 24 as an open / close type window glass breakage detection device. And a sensor (detection means) 43 for detecting displacement of the window glass holder 24 due to breakage of the window glass 5. This makes it possible to detect breakage of the window glass even when the window glass is slightly opened for ventilation or the like and the window glass is not in the fully closed position.

  Further, in the prior art (Patent Document 1), it is necessary to work on the regulator, and the reliability and quality may be lowered. However, in this embodiment, the work on the regulator is not necessary, and the reliability and quality are reduced. It can be made excellent. Further, in the prior art, the structure is complicated, so that the cost is likely to increase. However, in the present embodiment, it is possible to provide a simple configuration and provide a window glass breakage detection device at a relatively low cost.

  (2) The torsion coil spring 42 is urged by a force for crushing the window glass 5 at a site where the window glass holder 24 comes into contact with the window glass 5 due to breakage. Thereby, even when the window glass 5 remains without being crushed due to the breakage of the window glass 5, the window glass holder 24 is displaced, so that the breakage of the window glass can be reliably detected.

The embodiment is not limited to the above, and may be embodied as follows, for example.
In the above-described embodiment, the window glass holder 24 as the window glass support member is urged in the twisting direction to detect that the window glass holder 24 is displaced in the twisting direction when the window glass 5 is broken. 9, the window glass holder 24 is urged by the compression coil spring 50 in a direction intersecting the closing direction of the window glass 5, and the window glass holder 24 intersects the window glass closing direction when the window glass 5 is broken. It is also possible to detect the displacement. Specifically, the block 41a of the holder stay 41 is formed with a groove 41c that opens on the upper surface and one side surface thereof, and a protrusion 24d that protrudes from the lower surface of the glass gripping portion 24a of the window glass holder 24 is formed in the groove 41c. The window glass holder 24 is slidable in the right direction in a), and the window glass holder 24 is urged in the right direction in FIG. 9A by the compression coil spring 50 disposed in the groove 41c. When the window glass 5 is broken, the window glass holder 24 is moved (displaced) in the right direction in FIG.

Although an X arm type window regulator is used as the window regulator, a cable type window regulator may be used.
Further, the driving means is not limited to one having a motor, but may be one manually operated by an occupant.

  Further, the window glass breakage detection device is applied to the right front door of a passenger car, but it goes without saying that it may be applied to other side doors. In addition to the side doors, the rear door and the roof are also applicable. You may apply to the opening-and-closing type glass roof provided in.

The disassembled perspective view in the right front door in a passenger car. The schematic front view in the right front door in a passenger car. (A) is a front view of a breakage detection device for an openable window glass, and (b) is a longitudinal sectional view taken along line AA of (a). B arrow view of Fig.3 (a). The disassembled perspective view of the main components of the breakage detection apparatus of an open / close type window glass. FIG. 4B is a view as viewed in the direction of arrow B in FIG. The perspective view of the breakage detection apparatus of an open / close type window glass. The perspective view of the breakage detection apparatus of an open / close type window glass. (A) is a front view of a breakage detection device for another openable window glass of another example, (b) is a longitudinal sectional view taken along line AA of (a). The front view of the detection apparatus for demonstrating a prior art.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Vehicle door, 4 ... Opening part, 5 ... Window glass, 24 ... Window glass holder, 30 ... Opening-and-closing type window glass breakage detection apparatus, 42 ... Torsion coil spring, 43 ... Sensor.

Claims (3)

In the open / close type window glass breakage detecting device for detecting breakage of the window glass which can freely open and close the opening of the vehicle,
A window glass support member that supports the window glass to move the window glass along the opening of the vehicle;
A biasing means for biasing the window glass support member in a twisting direction, or biasing in a direction crossing a closing direction of the window glass;
Detecting means for detecting displacement of the window glass support member accompanying breakage of the window glass ;
An opening-and-closing type window glass, wherein the biasing means biases the window glass support member to bias the window glass at a portion where the window glass support member is in contact with the window glass. Damage detection device. 2. The opening / closing type according to claim 1, wherein the urging means is urged by a force for performing pulverization at a portion of the window glass that comes into contact with the window glass support member due to breakage of the window glass. Window glass breakage detector. The breakage detection device for an openable window glass according to claim 1 or 2, wherein the window glass is made of tempered glass.

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