JPH08165841A - Position detecting device for self-propelled door - Google Patents

Abstract

PURPOSE: To surely detect a self-propelled door without being affected by the environment of the installation position by fitting a vertically suspended reflector at an optional position of an opening upper edge on a building side, and fitting a reflection sensor to the self-propelled door to face the reflecting face of the reflector. CONSTITUTION: Electric power is fed to a drive source 12 from a lead-acid battery 13 based on the travel signal, and a self-propelled door 3 is moved in the direction of an arrow (b). When the self-propelled door 3 reaches near to the end section of a guide rail 10, a front terminal section 5a is faced to a reflector 4. The deceleration signal is sent from the front terminal section 5a, the electric power fed to the drive source 12 from the lead-acid battery 13 is reduced based on the deceleration signal, and the self-propelled door 3 is decelerated. When the self-propelled door 3 is further moved, the position detection signal is sent from a rear terminal section 5b, the electric power fed to the drive source 12 from the lead-acid battery 13 is stopped based on the position detection signal, and a stopping means is operated to stop the self-propelled door 3 based on the brake signal sent from a control device 6.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a position detecting device for a self-propelled door which is installed at an opening of a building so as to be automatically opened and closed.

[0002]

2. Description of the Related Art Conventionally, as a position detecting device for a self-propelled door, as disclosed in Japanese Patent Laid-Open No. 103982/1992,
Deceleration means for decelerating immediately before the stop position after the door has traveled a predetermined distance, based on preset distance data,
A guide rail provided on the floor or a stop position marker provided along the upper edge of the opening of the building, a mark sensor that reads the stop position marker and outputs a detection signal, and the door based on the detection signal from the mark sensor Some have a stop means for stopping.

[0003]

However, in the above-described self-propelled door position detecting device, when the guide rail is provided with a stop position marker, if dust or the like is accumulated in the guide rail, the mark sensor is used. However, there is a problem in that the stop position mark cannot be read by the above method, and the position of the door cannot be detected. Therefore, the door cannot be stopped at a desired position. Further, when a stop position marker is provided at the upper edge of the opening of the building, for example, in a place where uneven settlement occurs, such as Kansai International Airport, the distance between the stop marker and the mark sensor increases after many years of installation. Therefore, it becomes impossible to read the stop position mark by the mark sensor, and the same problem as described above occurs.

An object of the present invention is to provide a position detecting device for a self-propelled door which can surely detect the self-propelled door without being affected by the environment of the installation place.

[0005]

A position detecting device for a self-propelled door according to a first aspect of the present invention is a position detecting device for a self-propelled door which has a built-in drive source and travels in a width direction inside an opening of a building. A reflecting plate that hangs vertically and is attached to the building side at an arbitrary position in the width direction of the upper edge of the opening, and a reflection sensor provided on the self-propelled door so as to face the reflecting surface of the reflecting plate. It is equipped with.

According to a second aspect of the present invention, there is provided a position detecting device for a self-propelled door, which includes stop means for transmitting a position detection signal when the reflection sensor faces the reflection plate and stopping the self-propelled door based on the position detection signal. It is a thing.

[0007]

According to the self-propelled door position detecting device of the present invention, the self-propelled door in the width direction of the opening of the building is faced by the reflection sensor provided on the self-propelled door facing the reflecting plate attached to the building. The position of the door can be detected. Further, since the reflecting plate hangs in the vertical direction, dust or the like will not be accumulated on the surface of the reflecting plate. Further, even if the self-propelled door is displaced vertically with respect to the building, the position of the self-propelled door in the width direction of the opening of the building can be detected.

According to the self-propelled door position detecting device of the second aspect, in addition to detecting the position of the self-propelled door in the width direction of the opening of the building, the self-propelled door is detected at this detected position. It can be stopped.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG. 1, a self-propelled door position detecting device according to an embodiment of the present invention has a driving device 1 built-in, and the driving device 1 allows the inside of an opening 2a of a building 2 in the width direction. A self-propelled door 3 that travels in the direction of arrows a and b, a rectangular reflector 4 that is in an upright posture, and a deceleration signal when moving integrally with the self-propelled door 3 and facing the reflector 4. The self-propelled door 3 is decelerated on the basis of the deceleration signal from the reflection sensor 5 and the reflection sensor 5 including the trailing terminal 5b that emits a deceleration signal when facing the preceding terminal 5a and the reflection plate 4. The control device 6 and a stop means (not shown) for stopping the self-propelled door 3 based on the position detection signal are provided.

A plurality of the self-propelled doors 3 are generally installed in combination in an opening portion of a warehouse or the like for storing passenger planes at airports and the like, and as shown in FIGS. 2 (a) and 2 (b). As shown, the openings 2a are closed in a side-by-side arrangement,
The opening 2a can be fully opened by moving it in the direction of arrow a. Further, when a large opening width is not required such as when a worker goes in and out or carries in a small item, only one of the plurality of self-propelled doors 3 can be moved in the direction of arrow a.

When the light beam emitted from the light emitting portion is reflected by the reflection plate 4, the reflection sensor 5 receives the reflected light and converts it into an electric signal by a phototransistor or the like, and serves as an optical sensor. Since it is well known, the description of the specific configuration will be omitted. As shown in FIGS. 3 and 4, a support shaft 7a is fixed to the upper end surface of the self-propelled door 3 in an upright posture, and is horizontally rollable at the upper end of each support shaft 7a. Each guide roller 7 is provided. Further, a pair of L-shaped brackets 8 are fixed on both sides of the support shaft 7a, and the preceding terminal portion 5a, the trailing terminal portion 5b, and the deceleration signals sent from these are respectively attached to the pair of brackets 8. It supports the end of a cable 9 which transfers the position detection signal to the control device 6.

On the other hand, the building 2 is provided with a guide rail 10 consisting of a pair of side plate members 10b which are parallel to each other along the upper edge of the opening 2a via a mounting metal fitting 10a. By inserting the guide roller 7 between them, the entire self-propelled door 3 is guided straight in the directions of arrows a and b. A stopper 10c for positioning the self-propelled door 3 is provided inside the end of the guide rail 10. The reflector 4
Is attached to the inner side surface of the guide rail 10 with the reflection surface facing inward of the guide rail 10.
It has a longitudinal dimension substantially equal to the distance between the preceding terminal portion 5a and the trailing terminal portion 5b of the reflection sensor 5 in the directions of arrows a and b, and has a predetermined width dimension in the vertical direction.

As shown in FIG. 1, the drive unit 1 includes a drive wheel 11 protruding from the lower surface of the self-propelled door 3, a drive source 12 for supplying a drive force to the drive wheel 11, and a lead storage battery 13.
Consists of The control device 6 supplies the electric power stored in the lead storage battery 13 to the drive source 12 based on a traveling signal input from an opening / closing command switch or the like provided outside the self-propelled door 3, and the detecting means. The electric power supplied from the storage battery 13 to the drive source 12 is reduced based on the deceleration signal from the vehicle, the electric power supplied from the storage battery 13 to the drive source 12 is cut off based on the position detection signal, and a braking signal is sent out. To do. The stop means is not particularly limited, but for example, a brake device or the like that mechanically brakes the self-propelled door 3 based on a braking signal from the drive device 1 is preferable because of high reliability.

The operation of the position detecting device for the self-propelled door of this embodiment will be described below. First, electric power is supplied from the lead storage battery 13 to the drive source 12 based on the traveling signal, and the self-propelled door 3 changes from the arrow b to the state shown in FIG. 5 (a) to FIG. 5 (b). The guide rail 10
When it reaches the vicinity of the end portion, the preceding terminal portion 5 a faces the reflection plate 4. In this state, a deceleration signal is transmitted from the preceding terminal portion 5a, and the electric power supplied from the lead storage battery 13 to the drive source 12 is reduced based on the deceleration signal, so that the self-propelled door 3 is decelerated. It will be.

Further, the self-propelled door 3 moves in the direction of arrow b from the state shown in FIG. 5 (b) to the state shown in FIG. 5 (c). During this time, since the reflector 4 has the above-described longitudinal dimension in the directions of the arrows a and b, the reflector 4 and the preceding terminal portion 5a continue to face each other, and the deceleration signal is transmitted from the perforation terminal portion 5a. to continue. Then, in the state shown in FIG. 5 (c), a position detection signal is transmitted from the trailing terminal portion 5b,
Based on this position detection signal, the electric power supplied from the lead storage battery 13 to the drive source 12 is cut off, and the stopping means is operated based on the braking signal transmitted from the control device 6, thereby the self-propelled type The door 3 will stop.

According to the position detecting device for the self-propelled door of the embodiment, since the reflecting plate 4 is in an upright posture and has a predetermined width in the vertical direction, the surface of the reflecting plate 4 is When the reflection plate 4 and the reflection sensor 5 face each other without accumulation of dust or the like, the self-propelled door 3 can be reliably stopped at a predetermined position. Further, even if the self-propelled door 3 is displaced in the vertical direction with respect to the building 2, the reflector 4 and the reflection sensor 5 always face each other, so that a place where uneven settlement occurs Even if it has been installed for a long time, the self-propelled door 3 can always be reliably stopped at a predetermined position without performing repair work or the like.

In the description of the above embodiment, the case where the self-propelled door 3 moves in the direction of the arrow b has been described, but as shown in FIG. A leading terminal portion 5a and a trailing terminal portion 5b are arranged, and although not shown in FIG. 2, another guide plate is provided on the guide rail 10 inside the end on the opposite side apart from the reflector plate 4. Is provided. Therefore, even when the self-propelled door 3 moves in the direction of the arrow a, it is possible to decelerate and stop the self-propelled door 3 at a desired position as in the above embodiment.

[0018]

According to the position detecting device for a self-propelled door according to the first aspect of the present invention, even if the self-propelled door position detecting device is installed in a place where uneven settlement occurs for a long time, repair work is not always performed, and
It is possible to reliably detect the self-propelled door at any position in the width direction of the opening. Moreover, since the reflector plate hangs in the vertical direction, dust or the like does not accumulate on the surface of the reflector plate, and the position of the self-propelled door can be reliably detected without being affected by the surrounding environment. it can.

According to the self-propelled door position detecting device of the second aspect, even if the self-propelled door position detecting device is installed in a place where uneven settlement occurs and a long time has passed, the self-propelled door is always driven without repair work. The formula door can be reliably stopped at any position in the width direction of the opening. Moreover, since the reflecting plate hangs in the vertical direction, dust or the like does not accumulate on the surface of the reflecting plate, and the self-propelled door can be reliably stopped without being affected by the surrounding environment.

[0020]

[Brief description of drawings]

FIG. 1 is a schematic view of the inside of a self-propelled door that constitutes a position detection device for a self-propelled door according to an embodiment of the present invention.

FIG. 2 (a) is a front view showing an installed state of a position detecting device for a self-propelled door according to an embodiment of the present invention, and FIG.

FIG. 3 is a cutaway view of part A of FIG.

FIG. 4 is a sectional view taken along line BB of FIG. 3;

FIG. 5 is an operation explanatory view of the position detecting device for the self-propelled door according to the embodiment of the present invention when viewed in plan.

[Explanation of symbols] 1 drive device 2 building 2a opening 3 self-propelled door 4 reflector 5 reflection sensor

Claims (2)

[Claims] 1. A position detecting device for a self-propelled door which has a built-in drive source and travels in the width direction in an opening of a building, the position detecting device hanging vertically and having a width of an upper edge of the opening on the building side. A reflector attached at any position in the direction,
A position detecting device for a self-propelled door, comprising: a reflection sensor provided on the self-propelled door so as to face a reflection surface of the reflection plate. 2. The self-propelled type according to claim 1, wherein the reflection sensor includes a stop means for transmitting a position detection signal when facing the reflection plate and stopping the self-propelled door based on the position detection signal. Door position detection device.