JP2900728B2 - In / out device with cab - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a loading / unloading device for use in, for example, an automatic warehouse, and which has a cab for loading and unloading and a cab used for maintenance and inspection work. Things.

[0002]

2. Description of the Related Art Heretofore, as this kind, there has been provided a traveling crane with a lifting cab as disclosed in, for example, JP-A-1-313202. In this conventional configuration, the traveling body of the traveling crane is configured by connecting and integrating a lower frame guided by a lower guide rail and an upper frame guided by an upper guide rail with a pair of front and rear columns,
Further, a load transfer means is provided on a lifting carriage which moves up and down between the two columns. In addition, a cab located outside of the traveling direction is provided on one of the pillars integrally with the lifting carriage, and a lifting cab is provided on the other pillar for lifting / lowering outside the traveling direction.

[0003] In this conventional configuration, the traveling crane moves the traveling main body by manual operation or remote operation while riding on a cab integrated with the elevation carriage, moves the elevation carriage up and down, and performs load transfer. The loading and unloading can be performed at a target location on the shelf by a combination operation of moving the loading means with a fork.

[0004] During operation, the elevator cab is used, for example, in an emergency when the elevator carriage is out of order or when performing regular maintenance and inspection work. That is, while the operator is on the lift cab, the motor is operated to rotate the lift drive chain forward and reverse, so that the lift cab can be moved up and down along the guide rail, and at a position opposed to the lift carriage. After the stop, the worker moves from the hoisting cab to the hoisting carriage, so that the intended repair or maintenance work can be performed.

[0005]

According to the above-mentioned conventional construction, it is difficult to correctly stop the lift cab at the same level in the lift carriages having irregular stop positions, and the lift cab is positioned above or below the lift carriage. As a result, a step is generated, and there is a danger when the worker transfers. Also, in order to properly stop the hoist cab at the same level with respect to the hoisting carriage, it is necessary to perform the desired stop, and then to raise and lower the hoist cab in an inching manner, which is troublesome and quick. I can't.

SUMMARY OF THE INVENTION An object of the present invention is to provide a cab-in / out device capable of stopping a cab exactly opposite to a halted carriage that is unevenly stopped.

[0007]

In order to achieve the above-mentioned object, the cab-in / out device according to the present invention comprises a lower frame and a supporting column erected from the lower frame to constitute a traveling body, and is guided to the supporting column side. A carriage and a cab that can be individually raised and lowered, and a detection device capable of detecting an object to be detected provided in the carriage is provided in the cab;
Provided with a trap for transferring workers, the detection device
When detecting the object to be detected, the carriage and the ramp
Stop the cab at a level where workers can transfer between
This is provided with a control unit for stopping.

[0008]

According to the construction of the present invention described above, for example, when the carriage guided to the column side stops at an unspecified position due to a failure or the like, the operator gets on the cab and then moves the cab by the guide on the column side. To raise. Then, when the cab reaches the side of the carriage, the detection device of the cab detects the object to be detected in the carriage, and the control unit can stop the cab based on the detection signal. At this time, the cab
Workers can move between the carriage and the ramp
Stop at a certain level,
Transfer between workers is safe and quick via ramps
Can be done quickly.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. The frame-like shelf 1 has a plurality of storage sections 2 formed in the vertical and horizontal directions, and each storage section 2 is configured to support a load 3 (either directly or through a pallet) via arms. ing. The shelves 1 are arranged side by side with a passage 4, and in the passage 4, an access device 10 that can travel on a fixed path 5 in front of the shelf 1 is provided.

The loading / unloading device 10 includes a lower frame 11
And a pair of front and rear columns 12 erected from the lower frame 11.
The upper frame 13 connecting the upper ends of the columns 12 forms a traveling main body. Vertical guide rails 14 are arranged on the inner surfaces of the columns 12 facing each other, and a carriage 16 guided up and down on the guide rails 14 via guide rollers 15 is arranged between the columns 12. ing. Further, on the carriage 16, there is disposed a fork 18 that can be moved in and out of the storage section 2 and the like by the operation of the moving device 17. The upper frame 13
Has a guide roller 19 guided by the ceiling rail 7.

The lower frame 11 is composed of a pair of left and right channel members 20 and a pair of front and rear end members 21 and 22 integrated between the ends of the channel members 20. A drive wheel 23 that can roll on the floor rail 6 is attached to one end member 21 via a drive shaft 24, and a guide wheel 25 that is guided on the side surface of the floor rail 6 is freely rotatable. Provided. A driven wheel 26 that is rotatable on the floor rail 6 is attached to the other end member 22 via a driven shaft 27, and a guide wheel 28 that is guided on the side surface of the floor rail 6 is freely rotatable. Is provided.

A traveling drive unit 30 attached to one end member 21 includes a speed reducer 31 linked to the drive shaft 24 and a travel drive device (such as a motor with a flange type brake) 32 linked to the speed reducer 31. Be composed. In addition, a lifting drive unit 35 that is linked to the carriage 16 is mounted on the channel member 20 near one end member 21.
The lifting / lowering drive unit 35 includes a lifting / lowering drive device (such as a motor) 36 and a speed reducer 37.
A drive wheel 39 is fixed to an output shaft 38 from the vehicle.

One ends of two free-end ropes (such as chains) 40 hung on drive wheels 39 of the elevation drive unit 35 via a first guide wheel 41 disposed on the upper frame 13. It enters one of the supports 12 and is connected to a counterweight 42 in the support 12. The other end of the cord 40 is
The upper frame 13 is connected to the upper portion of the carriage 16 via a second guide wheel 43 provided on the upper frame 13.

A cab 50 used for maintenance and inspection or in an emergency is provided on the other column 12 outside the traveling direction so as to be movable up and down. That is, the cab 50 includes a bottom plate 51, a bracket 52 for elevating and lowering standing upright from the front side of the bottom plate 51, a front wall 53 continuously connected upward from the bracket 52, and the bottom plate 51.
And a side wall 54 erecting from the right side and having a side edge integrated with the bracket 52 or the front wall 53, and a side erecting from the rear side of the bottom plate 51 and having a side edge integrated with the side wall 54. A rear wall 55, a door 56 disposed on the left side of the bottom plate 51 and having a rear edge connected to the rear wall 55 so as to be openable and closable, a front wall 53 and a side wall 54, It is composed of a ceiling body 57 integrated between upper edges of the rear wall body 55 and the like.

When the door 56 is closed, the door
Cab side ramp 58 located from outside to front of 56
Is formed integrally with the bottom plate 51, and a door body 56 opened to the outside of the cab side ramp 58 is configured to be positioned as a safety fence. The cab control panel is located inside the cab 50.
59 (an example of a control unit) is provided. In addition, the carriage is so adjusted that the cab side ramp 58 can be opposed.
A carry-side ramp 44 is provided continuously from 16.

The cab 50 is held on a rail 45 attached to the outer surface of the column 12 via a roller 60 disposed on a bracket 52 so as to be able to move up and down. In order to move the cab 50 up and down, a motor 61 and a speed reducer 62 are provided on the lower frame 11 side on the outer surface side of the support column 12, and a driving tooth wheel 64 is attached to an output shaft 63 from the speed reducer 62, and the upper frame A free tooth wheel 65 is provided on the 13 side, and both ends 66a, 66b of a chain 66 extending between the two tooth wheels 64, 65 are connected to the cab 50. A control panel 46 for the access device is provided outside the motor 61 and the speed reducer 62.

A detection object 47 is continuously provided from the carriage 16 toward the cab 50 side, and a detection device 67 capable of detecting the detection object 47 is provided from the cab 50 side. The detecting device 67 is connected to the cab control panel 59, and when the detection target 47 is detected, the cab control panel 59 stops lifting and lowering of the cab 50, and at this time, the cab side ramp 58 is moved to the carriage side ramp 44. Are configured to face each other at the same level.

In the above embodiment, the loading / unloading device 10 comprises:
The combined operation of moving the traveling main body, moving the carriage 16 up and down, and moving the insertion / removal tool 18 by fork movement by remote control or the like via the control panel 46 for the loading / unloading device makes it possible to The loading / unloading of the load 3 can be performed with respect to the storage unit 2 to be stored.

During operation, the cab 50 is used, for example, in an emergency when the carriage 16 side of the loading / unloading device 10 is out of order or when performing regular maintenance and inspection work.
That is, while the operator is in the cab 50, the motor 61
By operating the chain 66 to rotate the chain forward and reverse,
The cab 50 can be raised along the rail 45, and when the detecting device 67 detects the detected object 47, the cab control panel 59 automatically stops the cab 50 from being raised. At this time, the cab-side ramp 58 faces the carriage-side ramp 44 at the same level.

After stopping the raising of the cab 50 and applying the brake in this way, the operator first opens the door body 56 and then uses the cab side ramp 58 and the carriage side ramp 44 to move the cab 50. By moving to the College 16 from the premises, the intended repair and maintenance work can be performed.

The interior of the shelves 1 of the automatic warehouse is very dark, and when the collapse of the cargo is corrected, the appearance of the package and the feet are difficult to see, so that the work efficiency is low and it is very dangerous. In this case, FIG.
As shown by the imaginary line, by providing a lighting device 68 for illuminating the carriage 16 on the cab 50 side, it is possible to illuminate the inside of the shelf 1 and the upper part of the carriage 16, thereby improving work efficiency and improving safety. Can be planned.

[0022]

According to the present invention having the above structure, the carriage
Is stopped at an unspecified position due to a malfunction, etc.
Board the cab and raise and lower this cab. Soshi
When the detection device detects the object to be detected, the cab
Is stopped by the control of. At this time, the cab is
Will be able to transfer between the carriage and the ramp.
Stopped by the bell, between the cab and the carriage
Workers can transfer safely and quickly via the ramp.
I can.

[Brief description of the drawings]

FIG. 1 is a partially cutaway perspective view of a loading / unloading device with a cab, showing an embodiment of the present invention.

FIG. 2 is a partially cutaway side view of the loading / unloading device with a cab.

FIG. 3 is a front view of an automatic warehouse using the cab-in / out device.

FIG. 4 is a cross-sectional plan view of a main portion of the cab-equipped loading / unloading device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Shelf 2 Storage part 6 Floor rail 7 Ceiling rail 10 Accessory device 11 Lower frame 12 Support 16 Carrier 18 Accessory 30 Traveling drive unit 35 Elevating drive unit 40 Cord 44 Carrier side ramp 46 Control panel for accession device 47 Detected object 50 Cab 58 Cab side ramp 59 Cab control panel 66 Chain 67 Detector 68 Lighting device

Claims (1)

(57) [Claims] 1. A traveling body is constituted by a lower frame and a column standing upright from the lower frame, and a carriage and a cab which are guided by the column side and are individually movable up and down are provided, and provided in the carriage. A detection device capable of detecting an object to be detected is provided on the cab, an access tool is provided on the carriage, and the cab has
A trap is provided, and the detection device detects an object to be detected.
At the time, the worker moves between the carriage and the ramp.
A control unit that stops the cab at a level that allows
Cab access device, characterized in that are.