JPH0450226B2 - - Google Patents

Description

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

Such a transfer type trolley is capable of transferring cargo handling equipment from the loading section of the trolley body to the floor-side cradle, or from the floor-side cradle 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 tools and sent to the shipping side in the direction of the arrow (Y). 0
Reference numeral 12 denotes a storage loading platform for use during non-operation 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 Japanese Patent No. 35975, in the past, 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 have different sizes depending on the purpose of use, for example, different sizes are selectively used depending on the size of the workpiece. In other words, if you prepare only one type of large cargo handling tool, it can be used to transport small items, but in that case, it becomes necessary to store many large and heavy cargo handling tools, and the number of cargo handling tools increases. There is a disadvantage that the storage space is large, so it is desirable to selectively use large cargo handling tools and small cargo handling tools.

The present invention has been made in view of the above-mentioned circumstances, and its purpose is to enable handling of both large and small cargo handling tools.

A characteristic configuration of the transfer type cart according to the present invention is such that the loading section distributes and arranges lower guides that support the bottom surface of the cargo handling tool on both sides of the locking tool when viewed in the moving direction of the locking tool. At the same time, horizontal guides for regulating the lateral swing of the cargo handling tool are arranged on both sides of each of the lower guides, and the lower guide guides the idle roller around the horizontal axis along the moving direction of the locking tool. The horizontal guide is constructed by arranging a plurality of idle rollers around the upper and lower axes along the moving direction of the locking tool.
And the effects are as follows.

That is, the lower guide, which is equipped with rollers that rotate freely around the horizontal axis, supports the cargo handling equipment in a state that allows it to move easily in the lateral direction, and the horizontal guide, which has rollers that rotate freely around the vertical axis, supports the cargo handling equipment in a state that allows it to move easily in the lateral direction. This prevents the ingredients from swinging laterally. In particular, in the present invention, since the four horizontal guides are provided on each side of the two lower guides, the four horizontal guides are located on the outer side of each of the lower guides. A pair of horizontal guides guides large cargo handling equipment, and
By guiding the small cargo handling tool with the pair of lateral guides located on the inner side of both receiving parts, it is possible to prevent the large and small cargo handling tools from swinging sideways.

Therefore, while loading each large and small cargo handling tool on the loading section in a state in which it is easy to move laterally and in a state in which lateral vibration is prevented, the cart is transported and the lateral movement type transfer device is operated. Because it is possible to carry out transfers in conjunction with cargo handling, it has become possible to carry out operations efficiently while selecting cargo handling equipment of the size appropriate to the purpose of use.

Next, examples of the present invention will be described.

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

There are two sets of sensors at the front and back of the bottom of the device. Towpath wire or light reflective tape (aluminum tape) is laid on the floor to form main or sub lines. When using the optical guidance 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 as a carrier 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 truck body 1, which is provided with 14 groups of idling rollers around the front and rear axes of the truck and 15 groups of idling rollers around the top and bottom axes of the truck, and is used as a cargo handling tool exclusively for workpieces. Loading part A of pallet _N1
It consists of

Reference numeral 16 denotes a cylinder for raising and lowering the horizontal 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 loading device B includes a guide rail 1 fixed to a cylinder 16.
7. Exit rail 1 slidably fitted to this
8. A tip rail 19 is further slidably fitted to the egress/retreat rail 18. This tip rail 1
The pin-shaped locking tool 20 is fixedly installed on the top of the pin-shaped locking tool 20 as the tip rail 19 moves in and out.
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.

On the lower surface side of the MC pallet _N1 , pin hole-shaped engaging portions 21 into which the locking tools 20 are engaged and disengaged are formed at intervals in the lateral direction (see FIG. 4A). still,
The interval between the two engaging parts 21, 21 is the same as the interval 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.

That is, the loading section A of the MC pallet _N1 is
The lower guide G1 that supports the bottom surface of the MC pallet _N1 is arranged on both sides of the locking tool 20 when viewed in the direction of movement of the locking tool 20, and the horizontal guide G2 that restricts the lateral vibration of the MC pallet _N1 is placed on the lower guide G1. It is arranged on both sides of each.

The lower guide G1 is an idling roller 1 around the horizontal axis.
4 are arranged in a plurality along the moving direction of the locking tool 20, and the horizontal guide G2 is constructed by arranging a plurality of idle rollers 15 around the vertical axis in a row along the moving direction of the locking tool. .

Next, while transferring MC pallet N ₁ from the cart side to the pedestal on the floor side while referring to Figure 4 A and B,
In other words, we will explain the operations during unloading and when transferring the MC pallet _N1 from the pedestal on the floor to the cart, that is, the operations during 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. (See 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 Fig. 4 B) The operation explained in Fig. 4 A and B is as shown in the modeled movements in Fig. 5 A and B. (b) and the second protruding stroke (c) correspond 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.

In addition, as shown in FIG.
It is also possible to form a pin into a pin, but it is easier to manufacture if the cargo handling tool N is provided with a concave part that is easy to manufacture, rather than having each of the many cargo handling tools N have a pin with high precision. It is advantageous.

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

In FIG. 11, it is engaged with and disengaged from both left and right sides of the cargo handling tool N.

In FIG. 12, the cargo handling tool N is engaged with and disengaged from the upper surface.

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

In FIGS. 14 and 15, there is only 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 and has a different diameter, it can be prevented from rotating, 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 rollers 15 around the vertical axis are 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 H is, in principle, locked by the locking device 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. Furthermore, in this document, the term "floor-side pedestal" includes not only those erected on the floor, but also 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 the drawing]

Figure 1 is a schematic plan view of a factory for machining, etc.
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 views 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. , FIGS. 11 to 15 show other embodiments, with FIG. 11 being a plan view and the others being front views. 1... Cart body, 14, 15... Idle roller,
20...Locking tool, A...Loading section, B...Laterally moving transfer device, G1...Lower guide, G2...Horizontal guide,
N...Cargo handling equipment.

Claims (1)

[Claims] 1. A cargo handling tool N placed on the loading section A of the truck body 1
Or, it is a transfer type cart equipped with a lateral movement type transfer device B, which is equipped with a locking device 20 that can be freely operated to engage and disengage from the cargo handling tool N on the floor side pedestal and can be operated laterally. , the transfer section A distributes and arranges lower guides G1 that support the bottom surface of the cargo handling tool N on both sides of the locking tool 20 when viewed in the direction of movement of the cargo handling tool N, and Horizontal guides G2 for regulating the lateral vibration of N are arranged on both sides of each of the lower guides G1, and the lower guides G1 move the idle rollers 14 around the horizontal axis in the moving direction of the locking tool 20. The lateral guide G2 is a transfer type cart in which a plurality of free rollers 15 around the vertical axis are arranged side by side along the moving direction of the locking tool 20. 2. The lower guide G1 is configured by arranging the idle rollers 14 in two rows.
The transfer type trolley described in section.