JP4871817B2 - 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 technique which detects the crack of the window glass of a vehicle for theft prevention is disclosed. As shown in FIG. 7, the window glass 100 is configured to abut against a weather strip 103 supported by a retainer 102 provided on the roof rail 101 when the window glass 100 is fully closed. A tube-shaped pressure sensor 110 is provided between the weather strip 103 and the retainer 102, and the internal pressure of the space 110a of the pressure sensor 110 is detected as an abutment pressure on the vehicle body side of the window glass 100 by an electric signal. When the window glass 100 is broken, the contact pressure decreases, and it is determined that the window glass is broken by detecting this.
Japanese Unexamined Patent Publication No. 63-269757

  However, when the window glass is not in the fully closed position, that is, when the window glass is slightly opened for ventilation, the above configuration cannot detect the breakage of the window glass.

  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 invention according to claim 1, in the open / close type window glass breakage detecting device for detecting breakage of the window glass that can open and close the opening of the vehicle, at least a pair of rail members that movably support the window glass, One of the rail members has a contact that slides on the end face of the window glass as the window glass moves by pressing the end face of the window glass, and the movement of the contact accompanying breakage of the window glass The gist of the invention is that it comprises a detecting means for detecting.

  As a result, the window glass is movably supported by the pair of rail members, and the contactor presses the end face of the window glass in the detection means provided on at least one of the rail members. Slides with end face. And if a window glass is damaged, a contact will move in connection with this and the movement is detected. Accordingly, even when the window glass is not in the fully closed position, the contact is moved when the window glass is broken, so that the breakage of the window glass can be detected.

  According to a second aspect of the present invention, in the open / close-type window glass breakage detecting device according to the first aspect, the contact of the detecting means is a portion of the window glass where the contact due to the breakage of the window glass contacts. It is pressed with the force of grinding.

  Thereby, even when the window glass remains on the rail member, the window glass at the portion where the contact contacts with the contact is crushed. Therefore, 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 is fixed to the lower edge of the window glass 5 in advance, and the window glass 5 having the window glass holder 24 is inserted from the gap between the outer panel 2 and the inner panel 3, and the window glass bracket 22 is tightened by bolts 25. It is fixed to.

  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.

  In the middle of the glass run 26 on the rear side of FIG. 2, as shown in FIG. 3, members constituting the breakage detecting device 30 for the openable window glass for preventing unauthorized entry are arranged. FIG. 4 shows a cross section taken along line AA of FIG.

  3 and 4, the glass run 26 is a glass holding portion in which the entire cross section has a U-shape and the opening extends in an eight-shape. A frame 27 is provided on the outer peripheral side of the glass run 26. The window glass 5 is fitted into the opening of the glass run 26 while being compressed. A contact-type sensor 40 as a detecting means is installed on a window glass running surface 26a of the glass run 26 as the rail member, that is, a portion of the glass run 26 facing the end surface 5a of the window glass 5. The presence or absence of 5 can be detected. The sensor 40 is disposed in an inconspicuous place inside the vehicle door 1.

A schematic configuration of the sensor 40 will be described with reference to FIG.
In FIG. 5, the sensor 40 includes a cylinder 41, a piston rod 42, a compression coil spring 43, and contacts 44a and 44b. A piston rod 42 is slidably disposed in the cylinder 41, whereby the piston rod 42 is movable in the left-right direction (X direction in FIG. 4). A compression coil spring 43 is disposed in the cylinder 41 of FIG. 5, and the piston rod 42 is biased by the compression coil spring 43 in a direction in which the piston rod 42 protrudes from the left side surface of the cylinder 41. The piston rod 42 is provided with a contact 44a, and the cylinder 41 is provided with a contact 44b opposite to the contact 44a. When the piston rod 42 moves to the left in the cylinder 41 from the state where both the contacts 44a and 44b of FIG. 5 are separated from each other, the contact 44a and the contact 44b come into contact.

  The cylinder 41 of FIG. 5 is attached to the glass run 26 in FIGS. 3 and 4, and the tip of the piston rod 42 and the end surface 5a of the window glass 5 are in contact with each other. That is, the piston rod 42 urged by the compression coil spring 43 in FIG. 5 presses the end surface 5 a of the window glass 5. The piston rod 42 slides on the end surface 5a of the window glass 5 as the window glass 5 moves up and down. The position where the sensor 40 is installed in the glass run 26 is preferably a position where the piston rod 42 is always in contact with the end surface 5a of the window glass 5 when the window glass 5 is raised or lowered (at least in the fully closed position). Even if it is slightly opened, it may be in a position where the contact is made within that range (specifically, for example, in the range from fully closed to 2, 3 cm below).

  Thus, the sensor 40 is provided so that the piston rod 42 protrudes from the window glass running surface 26a side of the glass run 26, and presses the end surface 5a of the window glass 5 with a predetermined pressure or more. Further, the front end surface of the piston rod 42 is sufficiently larger than the glass width at the end surface 5a of the window glass 5, so that when the window glass 5 is moved up and down by being guided by the glass run 26, FIG. The piston rod 42 can press the end surface 5a of the window glass 5 even if it is displaced in the Y direction.

In FIG. 5, the contacts 44 a and 44 b are connected to a controller 48, and an alarm device 49 is connected to the controller 48.
In FIG. 2, the sensor 40 is provided on the rear glass run 26 of the pair of front and rear glass runs 26. However, the sensor 40 may be provided on the front glass run 26, or may be provided on both the front and rear glass runs 26. Also good.

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 a normal state, the window glass 5 is movably supported by the pair of glass runs 26. As shown in FIGS. 3 and 4, the piston rod 42 presses the end surface 5 a of the window glass 5 in the sensor 40 provided in at least one glass run 26, and the window glass 5 moves along with the movement of the window glass 5. Slides with end face.

  When the window glass 5 is broken from this state, the piston rod 42 is moved along with this, and the movement is detected by the contact of the contacts 44a and 44b in FIG. 5 (breakage of the window glass 5 is detected). . In this way, even when the window glass 5 is not in the fully closed position as shown in FIG. 2, the piston rod 42 moves when the window glass 5 is broken, so that the breakage of the window glass 5 can be detected. Specifically, in the prior art (Patent Document 1), since the contact force to the vehicle body side when the window glass is fully closed is measured, the breakage of the window glass cannot be detected when the window glass is not in the fully closed position. However, 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 remains in the glass run 26 without being completely pulverized due to the breakage of the window glass 5, the following occurs.
The piston rod 42 presses the end surface 5a of the window glass 5 with a force for crushing the portion of the window glass 5 where the piston rod 42 comes into contact with the window glass 5 due to breakage. Therefore, when a part of the window glass 5 made of tempered glass is broken, cracks are generated and the strength is remarkably lowered. In this state, the window glass 5 at the portion where the piston rod 42 contacts is crushed by the urging force of the compression coil spring 43 in FIG. 5 (the tempered glass is partially shattered). Thereby, the piston rod 42 moves to the left side. In this manner, the piston rod 42 of the sensor 40 moves by pushing the window glass 5 when the window glass 5 is broken. As a result, even when the window glass 5 remains in the glass run 26, the window glass 5 is pushed away, and breakage of the window glass can be reliably detected.

  When the breakage of the window glass 5 is detected by the contact of the contact points 44a and 44b of FIG. 5 due to the movement of the piston rod 42, the controller 48 activates the alarm device 49 to issue an alarm.

According to the above embodiment, the following effects can be obtained.
(1) As a breakage detection device for an openable window glass, a pair of glass runs (rail members) 26 that movably supports the window glass 5 and at least one glass run 26 are provided. A sensor (detecting means) that has a piston rod (contactor) 42 that presses and slides with the end surface 5a of the window glass 5 as the window glass 5 moves, and detects the movement of the piston rod 42 accompanying the breakage of the window glass 5. 40). 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, when a sensor is installed in the movable part, the wiring is routed from the movable part to the fixed part, and it is necessary to devise the wiring. On the other hand, in the present embodiment, the sensor is arranged on the fixed portion, and wiring becomes easy.

  (2) The piston rod 42 as a contact of the detecting means is pressed by a force for performing crushing at a portion of the window glass 5 where the piston rod 42 comes into contact with the window glass 5 due to breakage. Thereby, even when the window glass 5 remains without being completely pulverized due to the breakage of the window glass 5, the piston rod 42 moves (extends), so that the breakage of the window glass 5 can be reliably detected.

The embodiment is not limited to the above, and may be embodied as follows, for example.
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. The front view of the breakage detection apparatus of an open / close type window glass. Sectional drawing in the AA of FIG. The schematic block diagram of a sensor. Sectional drawing of the breakage detection apparatus of the opening-and-closing type window glass for demonstrating an effect | action. Sectional drawing of the detection apparatus for demonstrating a prior art.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Vehicle door, 4 ... Opening part, 5 ... Window glass, 5a ... End surface, 26 ... Glass run, 26a ... Window glass running surface, 30 ... Opening-and-closing type window glass breakage detection apparatus, 40 ... Sensor, 41 ... Cylinder, 42 ... piston rod, 43 ... compression coil spring, 44a, 44b ... contact.

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 pair of rail members that movably support the window glass;
The contact member is provided on at least one of the rail members, and has a contact that slides on the end surface of the window glass as the window glass moves by pressing the end surface of the window glass. An opening / closing type window glass breakage detecting device, characterized by comprising: 2. The openable window glass according to claim 1, wherein the contact of the detecting means is pressed by a force for performing crushing at a portion of the window glass that comes into contact with the contact caused by breakage of the window glass. Damage detection device. 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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