JP3190533B2 - Abnormal load detection device for vehicles - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION A device for detecting abnormal loading of a vehicle in an automobile parking device

[0002]

2. Description of the Related Art Conventional detection devices of this type include:
For example, one disclosed in Japanese Utility Model Laid- Open No. 6-28126 is shown in FIG.

[0003] In this conventional example, at a vehicle entry position,
When the vehicle 21 enters the entry position, the photoelectric tube-type floodlight 2
3 'and the light receiver 23 detect the rear deviation of the vehicle 21, and the light transmitter 24' and the light receiver 24 detect the presence or absence of the vehicle.
2 ′ and the light receiver 22 detect a deviation from the front of the vehicle 21. It is detected that the vehicle 21 is within the allowable range when only two pairs of the light emitter 24 'and the light receiver 24 and the light emitter 25' and the light receiver 25 are shut off at the same time. As described above, the presence or absence of abnormal loading of the vehicle 21 is detected only at the boarding position.

Therefore, the front and rear position of the vehicle 21 at the boarding position can be detected. However, when the vehicle 21 is not sufficiently effective in hand braking, even if the vehicle 21 is displaced while the vehicle loading table 26 is being lifted and lowered, it is detected. Can't,
Even if the vehicle 21 is displaced in the width direction, that is, the vehicle 21 in the left-right direction or the door is opened, it cannot be detected.

[0005]

A detection device is arranged at a position where it does not hinder the entry and exit of the vehicle, and furthermore, an abnormality in the loading state of the vehicle over the entire elevating area of the elevator, that is, deviation of the vehicle in the front-rear and left-right directions. An apparatus for detecting the presence or absence is provided.

[0006]

Means for Solving the Problems A projector is provided downward on the ceiling of the top floor of the elevator shaft, and a light receiver is provided horizontally below the lowermost floor of the storage room and on the front and rear sides of the lower portion of the shaft. At the same time, a mirror for deflecting the light from the light emitter toward the light receiver is arranged below the hoistway.

[0007]

The light transmitter is mounted downward on the ceiling of the top floor of the elevator shaft, the light receiver is mounted horizontally on the lower side of the lowermost floor of the storage room and on the front and rear sides of the lower part of the shaft, and A mirror is attached to the lower part of the hoistway at an angle of about 45 ° to direct the light to the light receiver. Detect a deviation to

Further, since the mirror surface is inclined at about 45 °, there is little adhesion of dust, dirt, water droplets and the like.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A floodlight 5 of an area sensor is mounted on a ceiling of a hoistway 10.
Is installed downward, and the receiver 6 of the area sensor is stored in the storage room 9.
And the light path 8 is deflected so that the downward light from the light emitter 5 of the area sensor is received laterally by the light receiver 6 of the area sensor in the horizontal direction on the lower side of the lowermost floor and the front and rear sides of the lower part of the hoistway 10. The mirrors 7 for causing the mirrors 7 to face each other are installed.

The optical path 8 from the projector 5 of the area sensor is
Passing between the vehicle loading platform 2 and the skeleton, the vehicle loading platform 2 which is moving up and down the hoistway 10, passes right and left, and about 4
The optical path 8 is deflected by the mirror 7 installed at an angle of 5 ° and reaches the light receiver 6 of the area sensor. The presence or absence of abnormal loading from the vehicle loading table 2 of the vehicle 1 is detected based on the change in the light amount of the light receiver at that time.

The light transmitter 5 of the area sensor, the light receiver 6 of the area sensor, and the mirror 7 are respectively mounted on support members (not shown) and then installed at predetermined positions. Here, although not specifically shown, the vehicle 1 does not get into the proper position of the vehicle loading platform 2, or is displaced during ascent or descent, or is displaced due to an earthquake, some vibration or impact. When an abnormal stacking is detected, for example, when an alarm occurs, the driving of the elevator may be stopped, and an alarm may be sounded by a buzzer or the like.

[0012]

According to the present invention, since the light detecting device is arranged on the ceiling of the uppermost floor of the hoistway of the elevator, and the mirror and the light receiving device are arranged opposite to each other at the lower part, it is possible to enter and exit the vehicle at the vehicle entry position. , Does not hinder human entry and exit. When the vehicle moves up and down on the vehicle loading platform, when the vehicle deviates from the allowable range for some reason or when the door is opened, the abnormality can be detected.

Since the mirror for deflecting the optical path is installed with the light receiving surface being oriented sideways at an angle of about 45 °, there is little adhesion of dust, dirt, water droplets, etc. to the mirror and the light receiving surface.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of an embodiment of the present invention.

FIG. 2 is a cross-sectional view of the embodiment of the present invention.

FIG. 3 is a diagram of an example of a conventional example.

[Explanation of symbols]

 1,21 ... vehicle 2,26 ... vehicle loading table 3 ... elevator 4 ...・ ・ ・ Vertical beam 5 ・ ・ ・ ・ ・ Emitter (area sensor) 6 ・ ・ ・ ・ ・ ・ ・ Receiver (area Sensor) 7 Mirror 8 Optical path 9 Storage room 10 ... Hoistway 22'23'24'25 '... Emitter (phototube) 22,23,24,25 ... Receiver (phototube)

Claims (2)

(57) [Claims] 1. A parking device of a type having a multi-stage storage room along a hoistway of an elevator and having a multi-stage storage room on a side thereof, wherein a floodlight is installed downward on a ceiling of a top floor of the hoistway, and a light receiver is moved up and down by the hoistway. Mirrors are installed horizontally on the lower side of the lowermost floor of the storage room on both sides of the road and on the front and rear sides of the lower part of the hoistway, and deflect the optical path from the light projector to allow the light receiver to receive light. An abnormal load detecting device for a vehicle, wherein the device is provided at a lower portion of a hoistway so as to be inclined. 2. The abnormal loading detection device for a vehicle according to claim 1, wherein the light emitting device and the light receiving device include a plurality of area sensors.