JP2006219864A - Earthquake resisting rail structure of conveying truck with track - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an earthquake resisting rail structure of a conveying truck with track so as to stop the conveying truck by absorbing deflection of the rails in the case of the occurrence of an earthquake or the like and automatically detecting deflection of the rails with a sensor. <P>SOLUTION: The earthquake resisting rail structure of the conveying truck with track is so constituted that the rails 4 constructed along a conveying path of the conveying truck are divided on an expansion floor section 2 formed in a part of a concrete-made floor surface and that the conveying truck can be smoothly moved between a track 41 on the concrete-made floor surface and a track 42 on the expansion floor surface 2. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a seismic rail structure of a tracked carriage, and particularly when a large change occurs on the floor surface on which the track is laid in the event of an earthquake, etc. The present invention relates to an anti-seismic rail structure for a tracked carriage that automatically detects a deviation and stops a carriage that conveys on a track to prevent derailment of the carriage.

  Conventionally, in manufacturing plants and automatic warehouses for electronic parts such as liquid crystal, organic EL, and semiconductors, a track is laid at a predetermined height on the floor so that a transport cart (RGV) travels along the trajectory previously traveled. In addition, the transport cart runs along this track in an automatic operation.

  By the way, the rail structure of a tracked carriage in conventional electronic parts manufacturing factories and automatic warehouses such as liquid crystal, organic EL, and semiconductors is designed so that the floor is not destroyed even when a large external load such as an earthquake is applied to the floor. As shown in FIGS. 1 and 2, an expansion floor made of synthetic resin or rubber is arranged at a predetermined interval so as to absorb shaking such as an earthquake on a part of a concrete floor surface of a factory or a warehouse. The track support columns are established at predetermined intervals on the concrete floor surface and the expansion floor, and a single track is mounted on the track support columns.

  However, the track laid on the concrete floor and the expansion floor has a single continuous track that runs over the concrete floor and the expansion floor. The fluctuation of the surface can be absorbed by the expansion floor acting as a buffer zone, but since there is only one orbit, the vibration of the earthquake acts directly on the orbit, causing the orbit to deviate from the predetermined locus (course). May occur, or the track may be distorted or deformed, or even destroyed, and if the transport carriage travels with the track deformed, the transport cart will derail or derail at the deformed position of the track. There was a problem that it was derailed and damaged, or further, the track itself was further destroyed by a derailment carriage, and it took a lot of time and labor to restore it.

  In view of the problems of the rail structure of the conventional tracked carriage, the present invention absorbs the deviation of the track such as when an earthquake occurs, and automatically detects the deviation of the track with a sensor. It is an object of the present invention to provide an earthquake-resistant rail structure for a tracked carriage with which the carriage is stopped.

  In order to achieve the above object, the seismic rail structure of the tracked carriage of the present invention divides the track laid along the conveyance path of the carriage on the expansion floor formed on a part of the concrete floor surface. The transport cart is configured to be able to smoothly transfer between the track on the concrete floor and the track on the expansion floor.

  In this case, the track end surface on the concrete floor surface where the end surfaces abut each other and the track end surface on the expansion floor surface can be inclined to each other so that the transfer carriage can be easily transferred.

  In addition, a sensor that detects the deviation of the divided track and stops the traveling of the transport carriage can be disposed along the divided track.

  Moreover, a sensor can be comprised by either a limit switch, a proximity switch, a piezoelectric element, an infrared element, or a combination thereof.

  According to the seismic rail structure of the tracked transport carriage of the present invention, the track laid along the transport path of the transport cart is divided by the expansion floor portion formed in a part of the concrete floor surface, and the transport cart is made of concrete. By configuring the track so that it can be smoothly transferred between the track on the floor and the track on the expansion floor, even if a large load is applied to the track due to an earthquake, etc. Since the main body side track can be protected by absorbing at the track portion on the expansion floor, only the divided track portion needs to be restored at the time of restoration, which can be easily performed.

  In addition, by making the track end surface on the concrete floor where the end surfaces abut each other and the track end surface on the expansion floor into a slanted shape so that the transport cart can be easily transferred, the transport cart is also smooth at the track joint. Can be transferred to.

  In addition, it is possible to reliably detect even a slight deviation of the track by arranging a sensor along the divided track to detect the deviation along the divided track and stop the traveling of the transport carriage. As a result, the running stability of the transport cart can be improved.

  Further, by configuring the sensor by any one of a limit switch, a proximity switch, a piezoelectric element, an infrared element, or a combination thereof, the arrangement of the sensor is simple and can be easily applied to existing facilities.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of an earthquake-resistant rail structure for a tracked carriage according to the present invention will be described below with reference to the drawings.

1 to 2 show an embodiment of a seismic rail structure for a tracked carriage of the present invention.
In the manufacturing factory or automatic warehouse of electronic parts such as liquid crystal, organic EL, and semiconductors, the floor surface is usually a concrete floor surface. When an earthquake or the like occurs, fluctuations that occur on the floor surface due to external loads The expansion floor 2 made of synthetic resin or rubber is formed on a part of the concrete floor so as to absorb the displacement.
Then, on the floor surface in which the surfaces of the concrete floor surface 1 and the expansion floor portion 2 are flush with each other, a transport carriage (not shown) is transported along a predetermined course. The track 4 is laid along the traveling course.

In this case, track support columns or mounts 3 and 3 are established on the concrete floor 1 and the expansion floor 2 and along the transport path (travel course) at predetermined intervals or at arbitrary intervals, and this track support is established. A track (rail) 4 is laid through a column or mount 3.
The track laying and fixing method is the same as the conventional method, but the track 4 is divided on the concrete floor and the expansion floor, that is, the track 41 on the concrete floor and the expansion floor. The track 42 on the section is divided and disposed so that the transfer carriage can be smoothly transferred between the track 41 laid on the concrete floor and the track 42 laid on the expansion floor.

  As shown in FIG. 1, the end surfaces 4a of the tracks 41, 42, which are joints between the track 41 on the concrete floor and the track 42 on the expansion floor, are abutted with each other. By making the end face shapes of the slopes have the same inclination direction and the same inclination angle, the raceways 41 and 42 are abutted with each other at the end face 4a. The transfer cart can be smoothly transferred between the track 41 on the floor and the track 42 on the expansion floor.

  Moreover, even if a large load such as an earthquake acts on the track via the floor due to the division of the track, the expansion on the entire floor is absorbed by the expansion floor 2, and the displacement on the floor is In order to absorb from the track 42 on the expansion floor divided from the main body and thereby protect the track 41 on the main body side, and to detect the deviation of the divided track 42, the divided track 42 is detected. The sensors 5 and 5 for detecting the deviation are provided along or close to each other, and the deviation of the track is detected by the sensor 5 so that the traveling carriage is automatically stopped.

  Although it does not specifically limit as this sensor 5, For example, as shown in FIG. 1, in addition to a limit switch, it is comprised by one of proximity switches, a piezoelectric element, an infrared element, etc., or these combination. be able to.

  One or more sensors 5 are arranged along the side surface of the divided track 42 so as to face the side surface of the track 42. When the track 42 is slightly displaced from the set position, the sensor 5 The conveying cart is configured to stop or decelerate.

Next, the effect | action of the earthquake-resistant rail structure of a track-carrying trolley | bogie of this invention is demonstrated.
The track 41 on the concrete floor and the track 42 on the expansion floor are laid along the transport path of the transport carriage so as to abut each other, and the transport cart can be smoothly transferred between the tracks 41 and 42. Like that.
When an earthquake or the like occurs and a large load is applied to the floors 1 and 2 and the track 4, the track 42 divided according to the shaking direction is not particularly limited. As described above, positional deviation may occur for each track support column or gantry 3.

  When the track 42 divided from the track on the main body side is displaced, this deviation is detected by the sensor 5 close to the track. It does not work for deviations in the range where the transfer carriage can be transferred smoothly, but if deviations greater than the set value occur, the sensor 5 can be forcibly stopped by turning off the transfer carriage with the sensor 5 or transferred by other methods. Stop the dolly and slow down to prevent shortage accidents.

  In addition, by disposing the sensors 5 at both ends of the divided track 42, even if the entire track 42 is not displaced, if the displacement occurs on one end side of the track, the deviation is surely detected. Since the position can be detected, the transport carriage can be quickly stopped to prevent unexpected accidents.

  As described above, the seismic rail structure of the tracked carriage according to the present invention has been described based on the embodiments. However, the present invention is not limited to the configurations described in the above embodiments, and may be appropriately selected within the scope not departing from the gist thereof. The configuration can be changed.

  The seismic rail structure of the tracked carriage of the present invention has the characteristics that the track is divided on the expansion floor surface to absorb the eccentric load acting on the track via the floor surface and protect the main body side track. Therefore, it can be suitably used for the application of the track of the transport carriage, and for example, can also be used for the application of the overhead traveling carriage.

It is a top view which shows one Example of the earthquake-resistant rail structure of a tracked carrier truck of this invention. It is a vertical side view.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Concrete floor surface 2 Expansion floor 3 Track support column or mount 4 Track 41 Track on concrete floor 42 Track on expansion floor 5 Sensor

Claims (4)

  The track laid along the transport path of the transport carriage is divided on the expansion floor formed on a part of the concrete floor surface, and the transport cart is between the track on the concrete floor surface and the track on the expansion floor surface. An earthquake-resistant rail structure for a tracked carriage, characterized in that it can be moved smoothly.   2. The tracked transport carriage according to claim 1, wherein the track end face on the concrete floor surface that faces the end faces and the track end face on the expansion floor face are inclined to facilitate transfer of the transport carriage. Earthquake-resistant rail structure.   The seismic rail structure for a tracked carriage according to claim 1 or 2, wherein a sensor that detects the deviation of the divided track to stop the traveling of the carriage is disposed along the divided track.   The seismic rail structure for a tracked carriage according to claim 3, wherein the sensor is configured by any one of a limit switch, a proximity switch, a piezoelectric element, an infrared element, or a combination thereof.

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