JPH0146344B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a transversely movable locking device which is provided with a locking device that can be freely operated to engage and disengage from a cargo handling tool on a loading portion of a truck main body or on a floor-side cradle. The present invention relates to a transfer type trolley equipped with a transfer device.

Such transfer type carts are capable of transferring cargo handling tools from the loading section of the main body of the cart to the cradle on the floor side, or from the cradle on the floor side to the loading section. It is.

To explain with a specific example, FIG. This is also an outline of a factory that uses electromagnetic induction type unmanned trolleys.

02 is the main line and 03 is the sub line, both of which are made of aluminum tape or towpath wire laid on the floor. 04 is a loading platform provided in pair with the working machine 01. 05 is the work supply section, 06 is the tool room, 07
is a loading platform. 08 is an unmanned trolley.

For subline 03, work equipment 01 is placed on the side,
The loading platform 04 is located at the terminal. The workpiece is placed on the dedicated cargo handling tool 09 and transferred together with the cargo handling tool and the fixing jig between the cart 08 and the working machine 01 (strictly speaking, its cargo receiving platform).

Moreover, as shown in FIG. 2, a tool support board 010
The tool is placed on a special cargo handling tool 011, and the tool is transferred together with the cargo handling tool between the cart 08 and the cargo receiving platform 04. It is manual to set necessary tools on the work machine, remove unnecessary tools from the work machine, and insert them into the support plate. However, automation by robots is also a possibility.

The processed workpiece is placed on a trolley together with cargo handling equipment and sent to the shipping side in the direction of arrow Y. 012
is a storage loading dock for non-operating times such as nights and holidays.

In such a system, a lateral movement type transfer device provided on the trolley 08 is used to transfer the cargo handling tool 09 for the workpiece on the trolley 08 to a floor-side cradle attached to the work machine 01. It turns out.

As a horizontal movement type transfer device, for example, JP-A-51-
As disclosed in Publication No. 35975, conventionally, a cargo handling tool is often provided with a pair of claw-like locking tools that clamp both sides of the cargo handling tool.

By the way, cargo handling tools of different sizes may be selected and used depending on the purpose of use, for example, those of different sizes may be selected and used depending on the size of the workpiece.

In such cases, conventional lateral movement transfer equipment
The distance between the pair of locking tools is changed and adjusted according to the size of the cargo handling tool. However, such adjustment is not only a troublesome work, but also causes work errors because, for example, because the interval is adjusted to be small even though it is a large cargo handling tool, the locking action of the locking device cannot be performed as desired, resulting in work errors. There was a risk that this would lead to other problems.

The present invention has been made in view of the above-mentioned circumstances, and its purpose is to enable appropriate transfer work regardless of changes in the size of cargo handling equipment, and to simplify the configuration for this purpose. The object of the present invention is to provide a transferable trolley that can carry out the following tasks.

A characteristic configuration of the transfer type cart of the present invention is such that the lateral movement type transfer device includes a guide rail fixedly installed on the side of the cart, and an egress/egress rail along which the transfer operation is performed.
a tip rail along which the transfer operation is carried out, and the locking tool is attached to the tip rail,
The locking tool is formed in the shape of an upwardly protruding convex part that can be freely locked and detached by going up and down with respect to a recess formed on the lower surface of the cargo handling tool, and the tip of the locking tool is formed in a tapered shape. Its functions and effects are as follows.

First, let's talk about the effect.

In other words, by raising and lowering the convex locking tool, it can be engaged and disengaged from the recess formed on the bottom surface of the cargo handling tool, and by moving the exit/exit rail and the tip rail in the transfer direction, the locking tool can be moved in the transfer direction. By performing a moving operation, the cargo handling equipment is transferred.

And, since the cargo handling tool is transferred while the convex-shaped locking tool is engaged with and disengaged from the concave portion of the cargo handling tool,
If a concave portion is formed in each of the cargo handling tools of different sizes so that the locking device can be engaged and detached, each of the cargo handling tools of different sizes can be transferred without making any special adjustments to the locking devices. becomes possible.

To explain, the recess into which the convex locking device engages and disengages is formed in the cargo handling tool by locating it at a location suitable for the locking device to engage and disengage, regardless of changes in the size of the cargo handling device. Therefore, if the locking device is made into a convex shape, the desired movement can be achieved without making any special adjustments to the locking device, regardless of changes in the size of the cargo handling device. This makes it possible to perform the loading process.

Furthermore, since the distal end of the convex-shaped locking device is formed into a tapered shape, the locking device can be smoothly engaged with the concave portion.

Furthermore, since the concave portion of the cargo handling tool is formed on the lower surface and the locking tool is engaged and detached by raising and lowering, it is advantageous in terms of manufacturing and practical use. A comparative configuration will be described below.

For example, as shown in FIG.
1 may be formed into a convex shape, but it is better to provide the cargo handling tool N with a recessed portion, which is easier to manufacture, than to provide each of the many cargo handling tools N with a pin with high precision. , which is advantageous in terms of production.

Further, as shown in FIG. 11, when the left and right side surfaces of the cargo handling tool N are provided with recessed engagement portions 21,
It is necessary to provide a locking tool 20 on each of the left and right sides, which locks and releases by moving in the left and right direction, which complicates the configuration.
In other words, when the locking tool 20 is attached to and detached from the side surface of the cargo handling tool N, the locking tool 20 is attached to only one side of the cargo handling tool 20.
If this is applied, the movement of the cargo handling tool 20 is likely to be strained, and in order to avoid this, it is necessary to provide the locking tools 20 on both the left and right sides, resulting in a complicated configuration.

Further, as shown in FIG. 12, when the locking tool 20 is engaged with and removed from the upper surface of the cargo handling tool N, the locking tool 20 and the tip rail 19 tend to get in the way of loading the load.

As you can see from the comparison with this comparative structure,
It is advantageous in terms of production and practicality to engage and disengage the locking tool into the recess on the lower surface of the cargo handling tool.

Next, the effects of the present invention will be described.

In other words, it becomes possible to transfer cargo handling tools of different sizes without making any special adjustments to the locking devices, which eliminates the need for adjustment work to the locking devices and improves work efficiency. At the same time, it is possible to prevent troubles such as mistakes in transfer work due to incorrect adjustment of the locking device, and to ensure a good transfer even when handling cargo handling tools of different sizes. It became possible to do this.

Moreover, since the above-mentioned advantages are obtained through a configuration in which the locking tool is engaged with and detached from the lower surface of the cargo handling tool, it is advantageous in terms of manufacturing and practical use.

In the end, we were able to obtain an extremely useful transferable trolley as a whole.

Next, examples of the present invention will be described.

As shown in FIGS. 7 to 9, the trolley body 1 includes:
It is symmetrical in front, back, left and right. 2 is a pair of steering wheels, one for the front and one for the rear, and 3 is a driving wheel. The swing drive motor of the steering wheel 2 is connected to an electromagnetic wave or light sensor.

There are two sets of Zensars at the front and back of the lower part of the main body. Towpath wire or light reflective tape (aluminum tape) is laid on the floor to form main or sub lines. When using the optically guided type, floodlights are attached to the front and rear of the lower part of the main body. The sensor detects when the bogie deviates laterally from the line and controls the steering motor to eliminate the deviation.

4 is a bumper switch that is connected to the motor of the drive wheel 3 and has a safety function that automatically stops the vehicle in the event of a collision with another object.

5 is a positioning device for the cart. It has four pairs of outer cones 6 on the floor side and four inner cones 7 on the truck side. The cone 7 on the truck side is raised and lowered by a cylinder 8 attached to the truck. During its descent, the carriage is accurately positioned (in mm units) at a fixed position by the centering guide action of the cone pair 6, 7.

Reference numeral 9 denotes a loading section on which the flat pallet N ₂ is placed in a cross-over manner as a loading tool exclusively for tools, and positioning cones 10, ₁₀ , . An inner cone is formed. Reference numeral 11 denotes a cylinder for raising and lowering the loading section 9, and this and its related parts constitute a lifting type transfer device D.

Reference numeral 13 denotes a frame part fixed to the main body 1 of the truck, on which 14 groups of idle rollers around the left and right axes and 15 groups of idle rollers around the upper and lower axes are provided, and the MC pallet is used as a cargo handling tool exclusively for workpieces. It constitutes the loading section A of _N1 .

Reference numeral 16 denotes a cylinder for raising and lowering the lateral movement type transfer device B, and this serves as a locking/disengaging switching device for the pin-shaped locking device 20 as a convex-shaped locking device. This lateral movement type transfer device B includes a guide rail 17 fixed to the cylinder 16, an egress/egress rail 18 slidably fitted to the guide rail 17, and an egress/egress rail 18 further slidably fitted onto the egress/egress rail 18. A tip rail 19 is provided. The pin-shaped locking tool 2 is fixed on this tip rail 19, and as the tip rail 19 moves in and out, the pin-shaped locking tool 2
0 is operated to move in the horizontal direction. That is, the exit/exit rail 18 is moved to the fixed rail 1 by a motor (not shown).
7, the tip rail 19 moves relative to the egress/retreat rail 18 in conjunction with this and with the same amount of movement and the same direction of movement. As a result, the amount of movement of the tip rail 19 relative to the main body 1 is
It is twice that of 8. Movement speed is also doubled. Further, the tip rail 19 is provided with two locking tools 20, 20 spaced apart from each other in the lateral direction. Further, the distal end portion of the locking tool 20 is formed in a tapered shape.

The locking tool 20 is attached to the bottom surface of the MC pallet _N1 .
A pin hole-shaped engaging portion 21 as a recessed portion that engages and disengages.
are formed at intervals in the lateral direction (fourth
(See Figure A). Note that the distance between the two engaging portions 21, 21 is the same as the distance between the two locking tools 20, 20.

Due to the expansion of the cylinder 16, the locking tool 20 is
It engages with MC pallet _N1 and separates due to contraction.

FIG. 7 shows two types of MC palettes _N1 , large and small. There are also two types of rollers 14 and 15 groups.

Next, while referring to Figure 4 A and B, we will explain how to transfer the MC pallet N ₁ from the cart to the pedestal on the floor, that is, the operation during unloading, and how to transfer the MC pallet N 1 from the cradle on the floor to the cradle on the floor. An explanation will be added about the operation when transferring MC pallet _N1 to the side, that is, when loading.

However, the following explanation is based on the example of transfer at a factory illustrated in Figure 1.
The tip rail 19 will be referred to as an exit/exit rail, the MC pallet _N1 will be referred to as a cargo handling tool N, and the pedestal attached to the working machine 01 will be referred to as a floor pedestal 01.
In addition, in order to obtain the desired transfer distance L while reducing the egress/egress stroke St of the egress/egress rail 19, 1
A case will be described in which the ejection/exit rail 19 is operated twice for one transfer.

That is, as shown in FIG. 3, the lateral movement type transfer device 0B has a stroke corresponding to the transfer distance L.
Compared to the case where the loading/unloading tool N is transferred while operating the exit/exit rail 19 at St′, the exit/exit rail 1
A case where the stroke St of No. 9 is halved will be explained. Incidentally, the transfer distance of the cargo handling tool N is usually larger than the width W ₁ of the cargo handling tool N, and is often equal to the width W ₂ of the cart.

Furthermore, when operating the lateral movement type transfer device B, it is preferable for smooth transfer to have the cart side loading section A and the floor side pedestal 01 at the same or almost the same level.

(A) Operation during unloading. (See Figure 4 A) (b) The trolley detects the stop mark and stops automatically.

(b) The positioning device 5 determines the position of the cart. Due to the expansion of the cylinder 16, the locking tools 20, 20 are
Engages with the engaging portions 21, 21 of MC pallet _N1 .
Or it's already engaged from the beginning. That is, the egress/egress rail 19 is located at the home position, and the
The two locking tools 20, 20 are engaged with the two engaging portions 21, 21 of the cargo handling tool N, respectively.
(Refer to Figure 4 A) (C) Move the egress/egress rail 19 by the stroke St from the home position, and move the loading/unloading tool N.
Transfer about half of it onto pedestal 01. Thereafter, due to the contraction of the cylinder 16, the two locking tools 2
0 and 20 from the two engaging portions 21 and 21, and then the egress/egress rail 19 is moved back to the home position. (Refer to FIG. 4A) (d) By expanding the cylinder 16, the front locking tool 20 is engaged with the rear engaging portion 21 of the cargo handling tool N. (Refer to Fig. 4 A) (E) Once again, move the egress/egress rail 19 by the stroke St to completely place the cargo handling tool N on the pedestal 01.
Move it up. (Refer to FIG. 4A) (F) The locking tool 20 is disengaged from the engaging portion 21 by contraction of the cylinder 16, and then the egress/retreat rail 19 is moved back to the home position. (Refer to Figure 4 A) (B) Operation when loaded. (Refer to Figure 4 B) (a) The trolley detects the stop mark and stops automatically.

(b) The position of the cart is determined by the positioning device 5.

(c) Move the exit/exit rail 19 by a stroke St from the home position. after that,
Due to the extension of the cylinder 16, the front locking tool 2
0 is engaged with the rear engaging portion 21. (4th
(See Figure B) (d) Next, move the exit/exit rail 19 back to the home position. (Refer to FIG. 4B) (E) The locking tool 20 is separated from the engaging portion 21 by contraction of the cylinder 16. (Refer to Figure 4 B) (F) Move the egress/egress rail 19 again by the stroke St from the home position. Thereafter, by extension of the cylinder 16, the two locking tools 20 are engaged with the two engaging portions 21.
(See Figure 4 B) (G) Next, move the egress/egress rail 19 back to the home position. (Refer to Figure 4 B) The operation explained in Figure 4 A and B is as shown in the modeled movements in Figures 5 A and B. When the second protrusion stroke is c, this corresponds to the case where a=b=c=St.

L=a+c However, this is not limited to the above example, and various changes can be made, and one example will be explained.

That is, in all cases, on the condition that L=a+c St=a+c−b, there are cases in which a≠b, b≠c, and c≠a. Some of them are shown in Figure 6 A to D. In these cases, the locking tool pitch and the engaging portion pitch are different.

Next, another embodiment and supplementary matters when implementing the present invention will be described.

In FIG. 13, there are three locking tools 20 and three engaging portions 21.

In FIGS. 14 and 15, there is one locking tool 20. However, since the locking tool 20 locks at only one location, it is not possible to prevent the cargo handling tool N from turning unexpectedly even if it continues to be locked while traveling. However, if it is not circular but has a different diameter, rotation can be prevented, but there is a problem of stress concentration. If there are two or more locking tools 20, rotation can be prevented without stress concentration. However, this is not limited to the case where there are at least two locking tools 20 separated from each other in the direction of withdrawal and retraction (direction of lateral movement). Rotation can be stopped without stress concentration even when there is one location in the extension/retraction direction, at least two locations in the left/right direction, or one location long in the lateral direction. This is especially true when the group of rollers 15 around the vertical axis is prevented from rotating as in the examples shown in FIGS. 7 to 9.

When the cargo handling tool N is loaded on the cart, the cargo handling tool N is, in principle, locked by the locking tool 20, regardless of whether the cart is running or stopped.

The "lateral direction" in the present invention is often the left-right direction, but may also be the front-rear direction, and in short, is the lateral direction with respect to the vertical direction. In addition, in this document, the term "floor-side pedestal" includes those erected on the floor, those supported on walls, those suspended from the ceiling, and others. Furthermore, in this document, "cargo handling equipment" includes various pallets, skids, boxes, baskets, and others.

[Brief explanation of drawings]

Figure 1 is a schematic plan view of the factory during machining.
Fig. 2 is a side view showing the cart and the pedestal, Fig. 3 is an explanatory diagram of comparative operations, Fig. 4 is an explanatory diagram sequentially showing A or unloading operations, and Fig. 4 B is a schematic diagram of loading operations. Explanatory diagram, Figure 5 A and B are respectively No. 4
A simplified model diagram of the movements corresponding to figures A and B,
Figures 6 A to 2 are similar model diagrams showing other movement methods, Figures 7 to 9 are specific examples, and are a side view, top view, and front view, respectively, and Figure 10 is a front view of a comparative example. , FIG. 11 is a plan view of a comparative example, and FIG.
FIG. 2 is a front view of a comparative example, FIGS. 13 to 15 show other embodiments, FIG. 11 is a plan view, and the others are front views. 1...Body body, 17...Guide rail, 18
...Exit rail, 19...Tip rail, 20...
Locking tool, 21... recess, A... loading section, B... lateral movement type transfer device, N... cargo handling tool.

Claims (1)

[Claims] 1. A lateral movement type transfer device B is provided, which is equipped with a locking device 20 that can be freely engaged and detached from the cargo handling tool N on the loading section A of the truck body 1 or on the floor side cradle and can be operated in the lateral direction. The lateral movement type transfer device B is a guide rail 17 fixedly installed on the side of the cart.
and the exit/exit rail 18 that is operated to move along this.
and the tip rail 19 that is operated to move along this.
and the locking tool 20 is attached to the tip rail 1.
9, and the locking tool 20 is attached to the cargo handling tool N.
The transfer type trolley is formed in the shape of an upwardly projecting convex part that can be freely engaged with and detached from a concave part 21 formed on the lower surface of the carriage by going up and down, and the distal end of the locking tool 20 is formed in a tapered shape.