JPH03213458A - Carriage for rack of communication device - Google Patents

Abstract

PURPOSE:To improve working efficiency by providing a carriage to convey a rack of a communication device, being high as against a floor area, along a rail installed on the ceiling of a shop and engaging the carriage with the rail through operation of a roller support mechanism with which the carriage itself is provided. CONSTITUTION:A carriage for a rack of a communication device is formed such that a pair of stays 3 and 3' are secured to both sides of a pallet 2 runnable over a floor by means of casters 1 and the upper parts of the stays are intercoupled through a coupling member 4. Longitudinally protruding C- shaped structures 5 and 5' are mounted on the intermediate part of the one stay 3, and the one member 5 is removable. A roller support mechanism 7 having a manually-elevated slide member 6 is arranged in the upper regions of the stays 3 and 3', and mounted on and demounted from a rail 10 installed along a ceiling. In loading of a rack 11 on the truck, the rack 11 is placed on the pallet 2 in a state to remove the one C-shaped structure 5, and thereafter the rear surface side of the mounted rack 11 is pressed by the removed C-shaped structure 5.

Description

[Detailed Description of the Invention] [Summary] Regarding the structure of a trolley for transporting a tall rack housing electronic equipment such as a communication device along a rail, the following features are provided: (1) It is easy to engage and disengage from the transport rail; In addition, with the aim of providing a cart for transporting racks with excellent stability and good storage capacity, the racks for communication equipment, which are extremely tall compared to the base area, were installed on rails laid on the ceiling of the factory. A trolley for transporting along a platform, with columns fixed vertically on both sides of a pallet with casters for placing a rack on, and a platform mounted on the top of each column that is movable up and down along the column and centered on the vertical axis. A rotatable roller support mechanism is attached to the roller support mechanism, and the roller provided at the upper end of the mechanism is moved by vertical and rotational operations of the roller support mechanism.
It is configured to be able to engage and disengage from the rail.

[Industrial application field]

The present invention relates to the structure of a truck for transporting a tall rack housing electronic equipment such as communication devices along rails.

[Conventional technology]

These racks are tall compared to the base area and have a height of 2 to 3 (2) m, making them unstable, but after being delivered to the customer, the bottom plate is fixed to the floor and the ceiling is fixed. The plate member is fixed to a beam or the like so that it can be stably installed so that it will not fall over in the event of an earthquake or the like. However, in order to store this rack in a warehouse or to assemble or inspect it in a factory before shipping, it is not a good idea to completely fix the rack as described above because it takes time and effort. I often work while I'm in the room. For this reason, there is a need for a structure of a cart that is easy to move and can stably support the frame.

FIG. 5 is a side view showing an example of a conventional trolley. This trolley has two pallets with casters for traveling on the floor.
1 and a separate hook 23 that engages with a rail 22 having an I-shaped cross section installed on the ceiling of a factory, warehouse, etc. The rack 24 connects the bottom plate member 24a to the pallet 2.
1 with bolts or the like and placed in an upright state, and the hook of the top plate member 24b is temporarily fixed to a metal fitting 23 and supported. Then, the rail 2 is removed by a tractor or by hand.
2 on the floor.

(3) The drawback of this trolley is that the position where the hook 23 can be engaged and disengaged from the rail 22 is limited to the open end of the rail, as is clear from the figure. It was not possible to place the cart on or take it off the rail at this position.

In order to solve this drawback, as shown in FIG.
The frame 24 is lifted together with the balent 21 using a forklift 1-25, and the hook is made by engaging and disengaging the metal fittings 23' from above to the rail 22'. However, this method requires the use of a forklift, which is particularly inconvenient when working in a factory with a small floor space.

Furthermore, the metal fittings used for boat fishing are heavy, and the rack to which they are temporarily fixed has a tendency to sag under the weight.

SUMMARY OF THE INVENTION In view of the problems of the prior art, it is an object of the present invention to provide a transport cart with a rack that can be easily engaged and disengaged from a transport rail, has excellent stability, and has good storage properties.

(4) [Means for solving the problem] The purpose was to develop a trolley for transporting racks for communication equipment, which are extremely tall compared to the floor area, along rails laid on the ceiling of the factory. Supports are fixed vertically on both sides of a pallet with casters for mounting the rack, and a roller support mechanism is provided on the top of each support that is movable up and down along the support and rotatable around a vertical axis. This is achieved by means of a rack transport cart, characterized in that the rollers provided at the upper end of the mechanism can be engaged with and disengaged from the rails by mounting, vertically and rotationally operating the roller support mechanism. .

[Effect]

To engage the truck with the rail, first position the truck directly below the rail. The roller support mechanism is then operated to raise the roller to a higher position than the rail and to align the orientation of the roller with the orientation of the rail. Then, operate the roller support mechanism again to lower the roller, and position it so that the roller contacts (5) the rail and occupies a stable position. As a result, the cart is stably supported at its lower end by casters on the floor and by rollers engaged with the rail at its upper end, and can be moved along the rails with a small amount of force.

To remove the truck from the rails, perform the opposite operation.

Since it is possible to engage and disengage from the rail at any location, work efficiency is greatly improved compared to conventional methods where engagement and disengagement could only be done at predetermined locations.

Hereinafter, the present invention will be explained in more detail based on embodiments shown in the drawings.

[Example] The truck of the present invention basically has a structure as shown in FIG.

According to this, a pair of pillars 3, 3' are fixed to both sides of a pallet 2 which can be moved on the floor by casters 1, and the upper part thereof is connected to a bridge (6) by a connecting member 4.

The middle part of one of the pillars 3 is bifurcated into two, forming a 0-shaped structure 5,5'' extending forward and backward, and the member 5 on one side is configured to be removable.

Attached to the upper region of the column 8.3' is a roller support mechanism 7 with a slide member 6 extending longitudinally through it, at its two ends three rollers are installed, as will be explained later. There is. The slide member 6 can be manually moved up and down along the support column 8.8' by a handle (not shown), and can be rotated about a vertical axis.

The detailed structure of the roller support mechanism 7 will be explained with reference to FIG.

The bracket 8 provided at the upper end of the slide member 6 includes
A pair of vertical rollers 9a cantilevered with their axes facing downward.
, 9b are mounted at a predetermined interval, and a third horizontal roller 90 is installed at a slightly higher position than these rollers 9a, 9b in a direction perpendicular to the axis of these rollers.
is installed.

(7) The rail 10 associated with this truck is fixed and suspended from a beam on the ceiling of the factory.

As shown by the two-dot chain line in FIG. 2, when the roller support mechanism 7 is in the standby position, the roller group occupies a position lower than the rail 10. In order to engage the roller group with the rail, the truck is brought to a position directly below the rail 10, or the slide member 6 is raised from the standby position to raise the roller group higher than the rail 10. 6 to match the direction of the rollers 9a, 9b with the direction of the rail 10, and then lower the slide member 6 so that vertical #≧*=roller 9a, - as shown in the figure.
The rail 10 is received between the rails 9b so that the horizontal roller 9C contacts the upper surface of the rail 10 so that the roller support mechanism 7 is supported. On the other hand, in order to remove the roller group from the rail 10 from this state, it is sufficient to perform an operation completely opposite to the previous operation.

Next, the procedure for mounting the frame 11 on the truck attached to the rail 10 in this manner will be explained based on FIG. 3.

(8) (a) Remove the 0-shaped structure 5 on one side and prepare to insert the rack.

(b) The rack 11 is supported from both sides by the claws 13 of the forklift 12, and the rack 11 is gently inserted into the truck in a direction perpendicular to the rails 10 from the side from which the 0-shaped structure 5 has been removed. In this case, it is necessary to accurately align the pallet 2 and forklift 12. Then, as shown by the dotted line in the figure, the forward movement of the forklift 12 is stopped when the front end of the claw 13 on one side comes into contact with the inner surface of the 0-shaped structure 5''.

At this contact position, the center axis of the rack and the vertical axis of the cart are set to coincide, so that the rack 11 can be placed on the narrow pallet 2 in a well-balanced manner.

(C) Finally, reinstall the removed 0-character structure 5,
Hold down the rear side of the rack 11.

As shown in FIG. 4, the claws 13 of this forklift 12 have a wide width a on the side that contacts the O-shaped structure 5 when inserting the rack, which is necessary to ensure the contact. However, the claw on the other side (9) should have the narrowest width possible. The reason for this is that the spacing between the supports 3 and 3' of the truck needs to be set so that the claws of the forklift that supported the frame 11 can pass through, but by reducing the width of the claws, the spacing between the supports can be narrowed. This is because the required space of the entire truck can be saved.

[Effects of the Invention] As described above, the trolley of the present invention can be engaged with and disengaged from the rail at any location by operating the roller support mechanism provided in the trolley, and it is not necessary to use a forklift as in the past. It is also possible to significantly improve engagement and disengagement operations that are limited to specific locations. As a result, whereas previously it was only possible to inspect the racks in the order in which they were lined up on the rail, it is now possible to pull out the trolleys in the middle and give them priority work as needed. Improves efficiency. In addition, by adopting a special zero-shaped structure, loading and unloading of racks can be easily performed.

(10)

[Brief explanation of drawings]

FIG. 1 is a perspective view showing the structure of the truck of the present invention, FIG. 2 is a detailed view of the roller support mechanism, and FIG. 3(a),
(b) and (c) are diagrams showing the steps of loading the rack onto the trolley of the present invention, Figure 4 is a front view showing a preferred example of the width of the claws of the forklift used in the present invention, and Figure 5. is a side view showing the configuration of a conventional trolley, and FIG.
It is a side view showing another example of the same conventional truck. 1 - Caster 2 - Pallet 3.3° - Support 5 - C-shaped structure 6 - Slide member 7 - Roller support mechanism 9 a, 9 b, 9 c - CT - Roller 10 -
Rail 11 - Frame 12 - Forklift (11) Side view showing the configuration of a conventional trolley Figure 5 A side view showing another example of the conventional trolley

Claims (1)

[Claims] 1. A rack for communication equipment that is extremely tall compared to its base area (1.
1) along the rails (10) laid on the ceiling of the factory, with supports (3,
3') vertically, and on the top of each pillar (3, 3'),
A roller support mechanism (7) that is movable up and down along the pillar and rotatable around a vertical axis is installed, and the roller provided at the upper end of the mechanism is attached by vertical and rotational operations of the roller support mechanism (7). (9a, 9b, 9c) are configured to be able to engage with and disengage from the rail (10).