JPH0554058U - High altitude rail inspection carrier - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide an inspection carrier for inspecting a rail on which a carrier that conveys an object travels and a power supply cable that is laid along the rail and sends electric power to the carrier. . [Construction] The inspection carrier has traveling wheels and a gondola on which an operator rides, and the carrier for conveying a conveyed object receives electric power from a power cable to travel on a rail for traveling. The worker rides on the gondola, rotates the traveling wheels manually or by motor drive, moves to the maintenance inspection location, and always rides on the gondola to perform maintenance inspection work on rails, etc., so rails laid in high places, etc. Maintenance can be done without risk.

Description

[Detailed description of the device]

[0001]

[Industrial application]

 The present invention relates to an inspection carrier for inspecting a rail on which a carrier that conveys a conveyed object travels and a power supply cable that is laid along the rail and that supplies electric power to the carrier.

[0002]

[Prior Art]

 Conventionally, when carrying out maintenance and inspection of a rail on which a carrier that conveys a conveyed object travels, a power cable laid on the side of this rail to send power to the carrier, or a control cable that sends a control signal to the carrier, etc. Workers often work on stepladders. In this case, the rail is often laid in a high place because the carrier that suspends the transported object travels.

[0003]

[Problems to be solved by the device]

 However, when performing maintenance and inspection work on a stepladder in this way, the rail is laid at a high place and a high stepladder must be used at a place, which poses a risk to the maintenance and inspection work. Have a point. Also, the maintenance and inspection work on the stepladder can be performed only within the reach of the workers, and the position of the stepladder must be changed frequently during the maintenance and inspection work, resulting in poor work efficiency. There is also a problem.

[0004]

[Means for Solving the Problems]

 The present invention solves the above-mentioned problems by an inspection carrier that has traveling wheels and a gondola on which an operator rides, and a carrier that conveys an object travels on a rail that travels by receiving electric power from a power cable. It is a thing.

[0005]

[Operation] The worker rides on the gondola, rotates the traveling wheels manually or by driving the motor, travels the inspection carrier, and moves to the maintenance inspection location. Since the worker always rides on the gondola to perform maintenance and inspection work on rails and the like, even the maintenance and inspection work on rails laid in high places is not at risk.

[0006]

【Example】

 Embodiments of the present invention will be described below with reference to the drawings. The inspection carrier 10 (see FIG. 1) travels on the rail R with the worker M when carrying out maintenance and inspection of the rail R on which the carrier (not shown) for transporting the transported object travels. It is an inspection vehicle. The inspection carrier 10 has front wheels (traveling wheels) 11, rear wheels (traveling wheels) 12, and a gondola 13. The rear wheel 12 (see FIG. 2) is connected to a handle 23 via a large-diameter sprocket 20, a chain 21, and a small-diameter sprocket 22, and is rotated by manual rotation of the handle 23.

The lever 24 of the handle 23 is adapted to be bent toward the rail. A handle lock mechanism (lock mechanism) 30 is provided near the handle 23. The handle lock mechanism 30 is a mechanism that prevents the rear wheel 12 from rotating so that the inspection carrier 10 does not run during maintenance and inspection. The handle lock mechanism 30 includes a holding plate 32 having a groove 31 for receiving the bent lever 24, and a screw pin 33 for holding the engaged state of the lever 24 engaged with the groove 31. The screw pin 33 (see FIG. 3) is adapted to be screwed into the holding plate 32 to prevent the screw pin 33 from being accidentally pulled out during a maintenance inspection.

A rear trolley 36 having a reflection plate 35 is connected to a frame 34 (see FIG. 1) that supports the rear wheel 12. The reflection plate 35 is an arc-shaped plate for reflecting the light beam projected from the light emitter / receiver of the succeeding carrier (not shown) and keeping the succeeding carrier at a constant vehicle distance.

A frame 40 (see FIG. 4) that supports the front wheels 11 has three power cables 41 laid along the side surface of the rail R, and two control cables 42 for sending control signals. There are provided five current collectors 43 for contact with the. The power cable 41 also serves as a power source for an illumination lamp (not shown) that illuminates the worker M during maintenance and inspection. A current collector (not shown) of a carrier that conveys an article is also in contact with the power cable 41 and the control cable 42.

The frame 40 supporting the front wheels 11 has a light emitter / receiver 44 (see FIG. 1), a wear amount measuring sensor 45 (see FIG. 4) for measuring the wear amount of the power cable 41, and an operator. And a safety belt 48 for the vehicle. The light emitter / receiver 44 is a sensor that projects a light beam onto a reflecting plate provided at the rear of a carrier (not shown) traveling in the front to detect an inter-vehicle distance from the front carrier. The wear amount measuring sensor 45 has a pin-shaped contactor 47 which is pressed against the power supply cable 41 by a spring 46, and the amount of wear of the power supply cable 41 is measured by the protruding amount of this contactor 47. There is. That is, it has a structure to which a known dial gauge mechanism is applied.

The gondola 13 (see FIG. 1) is suspended from the frames 40 and 34 supporting the front and rear wheels 11 and 12 via universal joints 61 and 62 and suspension links 63 and 64. Between the lower ends of the suspension links 63 and 64 and the gondola 13, a universal joint (not shown) that allows the gondola 13 to tilt in parallel with the lower surface of the rail R is provided. Therefore, the front and rear wheels 11 and 12 can freely change their directions according to the undulations and curves of the rail R without being restricted by the gondola 13. The gondola 13 is provided with a door 65 for the worker M to get on and off.

The inspection carrier 10 is provided with a control box 70 (see FIG. 1). The control box 70 (see FIG. 5) is provided with a digital display 71 for displaying the wear amount of the power supply cable 41 measured by the wear amount measuring sensor 45 and an analog display 72. Further, the control box 70 is provided with a warning light (energization display means) 73, an alarm (electricity display means) 74, a carrier emergency stop switch 75, and a multiplex communication unit 76. The warning light 73 blinks when a current is flowing through the power cable 41, and is provided to warn the operator M by light so as not to receive an electric shock. The alarm device 74 is provided to call attention to a worker by a sound such as an alarm, a chime, and a synthetic voice when a current is flowing through the power cable 41.

The carrier emergency stop switch 75 is a switch for abruptly cutting off the current flowing through the power cable 41 when the carrier for transport runs out of control for some reason during maintenance and inspection of the rail R. The multiplex communication unit 76 in the control box 70 is connected to the multiplex communication unit 78 of the ground control device 77 via the control cable 42. Therefore, when the carrier emergency stop switch 75 is pressed, the power is turned off and each carrier is brought to an emergency stop. Further, the multiplex communication unit 76 in the control box 70 notifies the control device 77 in which control section among the control sections divided into a plurality, the control carrier 77 is located. This multiplex communication unit is also provided on the carrier for transportation. Therefore, two carriers are controlled so as not to enter one control section, and the collision between the carriers is prevented.

Next, the operation will be described. The inspection carrier 10 stands by on a retractable rail (not shown) when the rail R is not inspected. When carrying out maintenance and inspection work, the inspection carrier 10 travels on the rail R by the manual rotation of the handle 23 and moves to the desired location. During the maintenance and inspection work, the worker M locks the lever 24 of the handle 23 with the handle lock mechanism 30 and stops the inspection carrier 10 at a certain place in order to ensure safety and improve work efficiency.

When a subsequent carrier approaches the stopped inspection carrier 10, the subsequent carrier is set by the emitter / receiver of the subsequent carrier and the reflection plate 35 of the inspection carrier 10. It is designed so that it does not come closer than the inter-vehicle distance. When the wear amount known from the numerical value displayed on the digital display 71 or the analog display 72 exceeds a predetermined value, the power cable 41 and the control cable 42 are replaced by the worker.

Although the inspection carrier 10 described above is designed to be driven by the handle 23, it may be driven by a motor 180 like the inspection carrier 110 shown in FIG. In this case, the motor is adapted to obtain power from a battery (not shown) or the power supply cable 141. Further, the motor 180 is designed to be emergency stopped similarly to the carrier 110 for transportation by the carrier emergency stop switch 175 (see FIG. 7). Further, the rotation direction of the motor 180 is switched by the traveling direction changeover switch 182 connected to the motor controller 181 in the control box 170. The inspection carrier 110 may be provided with a handle (not shown) having the same structure as that of the inspection carrier 10 so that the inspection carrier 110 can be manually moved. The inspection carrier 110 shown in FIGS. 6 and 7 has the same structure as that of the inspection carrier 10 shown in FIGS. 1 to 5 except for the handle and the motor. 1 is indicated by adding 1 to the head of the reference numerals in FIGS. 1 to 5, and the description of the structure will be omitted.

[0017]

[Effect of the device]

 According to the inspection carrier of claim 1, the worker can ride the gondola to perform the maintenance and inspection work, so that the efficiency and safety of the maintenance and inspection work of the worker can be improved. When the lock mechanism is provided as in claim 2, the inspection carrier can be stopped at a fixed place during the maintenance and inspection, and the safety of the maintenance and inspection work can be improved. Further, according to the third aspect of the present invention, by providing the power-on display means, it is possible to call attention so that the worker does not come into contact with the power cable in which current is flowing, and improve the safety of the maintenance and inspection work. You can

[Brief description of drawings]

FIG. 1 is a schematic perspective view of an inspection carrier of the present invention.

FIG. 2 is a side view of the rear wheel portion viewed from the left side in FIG. 1, and is a diagram showing a partial cross section.

FIG. 3 is a front view of a portion of the lock mechanism in FIG. 2, and is a diagram showing a partial cross section.

FIG. 4 is a side view of the front wheel in FIG. 1 as viewed from the left side.

FIG. 5 is a circuit diagram of a control box.

FIG. 6 is a schematic perspective view of an inspection carrier according to another embodiment.

FIG. 7 is a circuit diagram of a control box of the inspection carrier of FIG.

[Explanation of symbols]

 R rail M worker 10,110 inspection carrier 11,111 front wheel (running wheel) 12,112 rear wheel (running wheel) 13,113 gondola 23 handle 30 handle lock mechanism (lock mechanism) 41,141 power cable 43,143 Current collector 73,173 Warning light (energization display means) 74,174 Alarm (energization display means)

Claims (3)

[Scope of utility model registration request] 1. A rail inspection carrier which has traveling wheels and a gondola on which an operator rides, and which travels on a rail on which a carrier for transporting an object receives electric power from a power cable to travel. 2. The carrier for rail inspection according to claim 1, further comprising a handle which is rotated by a manual rotation and which is locked by a lock mechanism during rail inspection. 3. A current collector in contact with the power cable,
The rail inspection carrier according to claim 1 or 2, further comprising: a current-carrying display means that indicates that a current is flowing through the power cable.