JPS5817060B2 - Conveyance device equipped with dedicated conveyance carts for distribution and collection - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a self-propelled distribution vehicle equipped with a number of bangers capable of selectively removing hung articles at a destination;
The present invention relates to a conveyance device 1 which is capable of conveying even on vertical rails by using a self-propelled recovery conveyance vehicle equipped with a lifting device for raising and lowering a conveyed object storage container.

The running wheels of the self-propelled carrier are fitted onto the rails (which have a U-shaped cross section), and equipped with electric friction wheels or gear wheels so that they can run freely even on steeply inclined or vertical rails. If the conveyor device is configured by combining rails of both height and height, it is convenient to erect the rails of the traveling section at a high place and use a wide floor surface, which is suitable for conveying documents, etc. .

However, in order to load and unload goods at one low location, conventionally one branch rail was provided for each loading and unloading point via a rail branching device, which had the disadvantage of requiring one floor area.

On the other hand, for example, like in a conventional document delivery device, one or more transport carts are run on rails arranged in a loop, and at the loading point, the storage device of the cart [after storing the desired delivery destination code] In the case of a conveyance device that delivers to a destination (automatically), this means branching at one delivery destination and moving an empty trolley to one loading point.
If operations such as forwarding are not carried out quickly, problems such as congestion of trucks at the delivery destination or a shortage of trucks at the loading point will occur, so make sure that the branching device operates smoothly. This requires a complicated control device to operate the system, and also has the drawback of increasing the number of trucks used, as it requires waiting at one loading point and stopping the truck at the branch rail at the delivery destination.

The purpose of the present invention is to eliminate the above-mentioned drawbacks of the conventional method, and to provide a conveyance device that streamlines conveyance by using a dedicated conveyance vehicle for distributing to a large number of delivery destinations and a dedicated conveyance vehicle for returning goods from each destination. There is one thing that I would like to suggest.

Embodiments of the present invention will be described below with reference to the drawings.

The distribution cart A has running wheels 2 which are supported by one axis in the front and rear of the upper part of the cart frame 1, and one vertical shaft guide roller 3 provided at the outer end of each wheel, which is fitted into a rail 41 having a U-shaped cross section. The vertical and horizontal positions are regulated by the friction drive wheels 5, which are driven by a running electric motor 1 (not shown) provided in the frame 1, and are pressed against a spring (or track plate 6) and driven to run.

However, in the vertical rail, instead of the friction drive wheel 5, a toothed wheel (not shown) meshes with one fixed rack and runs.

The electric motor for driving is supplied with power via a known current collector (not shown).

Lower side of frame 1 (one side off to this side, banger board 7)
is fixed, and its outer surface 81 bears bearings 9, 9].Therefore, a large number of lever shafts 10a, 10b...10n are supported at equal intervals in the running direction.
The height of the detection lever 12 having a height of 1 is sequentially changed.

and fix it.

As shown in FIG. 4, each lever shaft is urged to rotate outward by a spring 13, and a stopper 14
The bent end portion of the lever 121 is engaged with the lever 121 to make the rotation angle of the lever 12 constant (100 to 45 degrees).

Each lever shaft 10a. 10b... Dobe 1 lever 12
The bushing lever 15 in approximately the same direction is fixed at the same height.

As shown in FIG. 5, the upper part of the inner surface 16 of the banger board 7 forms stepped mounting surfaces 17a, 17b, . are placed opposite to the tip of each Pushini lever 15.

As shown in FIG. 6, the outer surface 8 and each mounting surface 17a,
17b... and one sleeve 18, 19 are fixed, and the transmission rod 20 is supported slidably in the axial direction (2).

Each transmission rod 20 is an end rod 2 that fits into the sleeve 18, 19 +
1 and 22 are connected by a rod 23, and a spring 24 (therefore, the stepped portion of one end rod 22 is normally held at the retracted position 1 shown in the figure, where it abuts against the sleeve 19).

In the retracted position, the tip of the end rod 22 is close to the tip of the bushing lever 15 when the levers 12 and 5 stoppers 141 are locked, and the tip of the end rod 21 is close to the tip of the bushing lever 15.
There is a position slightly retracted from the outer edge of 8.

The upper part of the hook plate 26 is pivotally attached to each of the mounting surfaces 17a, 17b, . . . by a hinge 25, and a hook pin 27 is fixed to the lower part thereof.

The hook plate 26 is bent once so that the portion below the hinge 25 is pressed against the protruding outer end of the sleeve 18 by a coil spring 28 and hangs down. The inner end is the mounting surface 17
a etc. (fit into the hole 29 provided).

The guide plate 31 is fixed at a predetermined distance 30 from the mounting surface 17a of the sleeve 181, and its lower end is formed into a bifurcated shape through which the pin 27 is inserted, and the lower end is bent outward and inclined.

Using the knob 32 at the outer end of the hook pin 27, raise the hook plate 26 by one position shown by the chain line in FIG.
After inserting the hanging ring 34 of one of the transported goods storage bags 33,
When the knob 32 is released, the storage bag 33 is suspended from the pin 27+.

Since the suspended position is approximately one point below the hinge 25, the weight of the conveyed object acts to press the hook plate 26 against the sleeve 18, and holds the pin 27 one degree in the suspended position.

At each delivery destination I, a short striker 35 is moved along the rail 4I so as to engage the roller 11 at a predetermined height (
The height of each delivery destination is changed (Figure 4).

When the trolley A passes a delivery point, the roller 11 at the height corresponding to the delivery destination hits the striker 35 and the lever 1
2, rotate the bushing lever 15 (the transmission lever 20
Slide it forward one step.

From this, the transmission rod 20 tilts the hook plate 26 outward by one angle to move the pin 27 to the position indicated by the chain line in FIG.
Move it out of line from 7 and let it fall.

FIG. 8 shows the receiving facility at the delivery destination when the device of the present invention is used for document transport, and the trolley A runs above the ceiling 36.
The striker 35 is attached to a bracket 38 fixed to the suspension member 37) of the rail 4.

The fallen storage bag 33 passes through a guide chute 39 and enters a storage box 40 on the desk.

The collection carriage B also has the same running structure as the distribution carriage A, and in FIG. 9.10.11 I, the same reference numerals as in FIGS. 1 and 2 indicate the same structural parts.

A worm reduction motor 42 for lifting and lowering is fixed to a saddle 43 at one end of the lower side of the frame 41, and a take-up pulley 44 with a flange is attached to its output shaft, and a bracket 451 is protruded from the other end of the lower side of the frame. A play pulley 46 with flange is pivotally supported.

The pulleys 44° and 46 are aligned in the vertical center plane of truck A.
Two flat suspension belts 4 wrapped around a pulley 44
γ, 48 directly, and the other by the pulley 46, the bracket 50 of the container 49] and the binding tool 51
Fix it with.

A shaft 54 is pivotally supported by a support plate 521 fixed to the frame of the electric motor 42 for lifting, and a lever 55 is connected to one end of the shaft, and a cam plate 56 is connected to one end of the shaft.

When the pulley 44 is rotated by the electric motor 42 and the container 49 is raised close to the predetermined upper limit position, a striker 57 fixed to the hanging belt 47 engages with the lever 55 (to rotate the shaft 54, and the container 49 is moved to the predetermined upper limit position). When position 1 is reached, the cam plate 56 becomes a support plate.

521 or by opening the Mitswitch 58 to stop the electric motor 42.

When the container 49 is lowered, the lever 55 is restored by the spring 59, and the limit switch 58 is closed.

The hanging belt 47 is a forked tip of the lever 55.

60 and the two round bar members 61 fixed therebetween. Therefore, when the container 49 is hoisted up to the upper limit position, the trolley B is placed on a vertical path. Even if the hanging belt 47 changes its vertical position from the horizontal position shown in the figure by one degree, the hanging belt 47 remains a round bar member.

The short part below 61 is bent upward or downward to form the container 4.
Hold 9 well in a vertical position.

In order to control the electric motor 42, three sets of current collectors 64, 64a are mounted on an arm 63 protruding from the frame 411.

Attach 64b and 64c and connect them to each stopping point.

Three digit current collector rails 65, 65a, 65b, 65c
-ffi-'6b is brought into contact with the external control device C754 to form a power supply circuit to the electric motor 42 and a signal transmission circuit from the limit switch 58 to the external control device C.

The external control device C is provided with one stop point for each, and the 12th
It has the circuit configuration shown in the figure.

In FIG. 1, P and n are control power lines, KR is a keep relay, and Ta is a control power line.

Tb is a timer, Ca and Cb are auxiliary relays, and Mu.

Md is an electromagnetic contactor, and P and N are DC power supplies.

If you want to stop truck B at a certain stopping point, press button R.

At this time, keep relay KR is set and contact K r
1. Open Kr2 and close Kr3.

As a result, the relay Ca is deenergized, making it impossible for the bogie to travel in the section of the stop point, and when the bogie B arrives in the section, it is stopped.

Also, by opening the contact Kr2, the upward contactor Mu is prohibited from being energized, and by closing the contact Kr3, the downward contactor Md is prepared to be energized.

When truck B arrives at the section, a detection device (not shown) is activated and timer Ta is energized, and after the set time has elapsed, contact ta1
．． ta2 is closed, and the descending contactor Md and timer Tb are energized.

From this, contact md1 switches in the opposite direction as shown, and contact md2
is closed, the electric motor 42 starts rotating normally, and the container 49 is lowered.

The lowering operation may be started either before or after the trolley B stops.

When contact tb opens after the set time limit of timer Tb, contactor M
d is deenergized, and the contacts md l and md 2 are in the illustrated position 1.
After this return, the electric motor 42 stops.

At this time, the container 49 is at a predetermined lowered position, and the goods are loaded and unloaded here.

Then, when pushbutton B is pressed, keep relay KR is reset and contacts Kr1. Kr2 closes and Kr3 opens, which energizes the contactor Mu, causing the contact mu1 to switch in the opposite direction to that shown in the figure, and the contact mu2 to close, the motor 42 is started in reverse, and the container 47 is raised.

When the container 49 reaches the predetermined upper limit position l, the limit switch 58 opens and deenergizes the relay Cb, its contact cbi closes and the relay Ca is energized, and when the truck starts traveling, the relay Cb is deenergized.
At this time, contact cb2 opens and deenergizes the contactor Mu.

This causes contact md1. md2 returns to the illustrated position by one position, and the electric motor 42 stops.

When the trolley B leaves the section of the stopping point, the timer Ta is deactivated.

As described above, by operating the push button R2S at each stop point, it is possible to automatically stop the cart B, lower the container 49, raise the container, and start the cart.

The bogies A and B may run on the same rail or on separate dedicated rails, and in either case, each bogie is provided with a well-known collision prevention device.

The present invention has the above-mentioned configuration, and can produce the following remarkable effects.

(1) Even if one rail is installed at a high place, there will be no problem in loading and unloading goods to the trolley except when loading into trolley A, and it is necessary to install a branching device or a branch/rail at each loading/unloading point as in the past. Since there are no holes, a wide floor space can be used.

(2) Separate dedicated trolleys are used for distributing and collecting goods, and distribution trolley A delivers the goods without stopping, while collection trolley B starts and stops at each stopping point and lifts and lowers containers. Since these steps are automatically performed in conjunction with each other, the entire transport work can be carried out efficiently using a relatively small number of carts.

(3) Since each truck does not have a control device, the truck is lightweight, and the carrying capacity can be increased accordingly.

This point is particularly advantageous when transporting lightweight items such as documents.

(4) Since there is no problem in holding articles even if each truck is mounted on a vertical rail, it is possible to convey articles even on a conveyance path I in which multiple floors are connected by vertical rails.

(5) It would be extremely convenient in terms of appearance and indoor air conditioning if the trolley could be driven across the ceiling and an automatic door installed in the ceiling at the stopping point.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, and FIGS. 1 to 8 relate to a distribution carrier, and FIG. 1 is an elevational view, and FIG.
The figure is a side view, Figure 3 is a partial rear view, and Figure 4 is A of Figure 2.
- An enlarged plan view taken along the line A, Fig. 5 is an oblique view taken as seen from the B arrow in Fig. 2, Fig. 6 is an enlarged sectional view taken along the line C-C in Fig. 1, and Fig. 7 A 20 is a storage The elevation view and side view of the bag, and FIG. 8 are longitudinal cross-sectional views at the delivery point of the conveyance device of the present invention. FIGS. 9 to 12 are the collection conveyance cart. 9 is an elevational view, FIG. 10 is a side view, FIG. 11 is a bottom view taken along line D--D in FIG. 9, and FIG. 12 is a circuit diagram of the external control device. A...Distribution carrier, B...Collection carrier, C...External control device, 2...
・Travel wheels, 4...Rail, 8...-
(L 10a~10n... Lever shaft, 12.
...Detection lever, 13, 28... Spring,
16...Other side, 17a-17n...Mounting surface, 20...Transmission means, 26...Hook plate, 27...Hook pin , 29...
... Hole, 30 ... Spacing, 35 ...
Striker, 44... Winding pulley, 47, 4
8...Flat suspension belt, 49...Container, 54-58...Predetermined upper limit position detection device, 64
, 54... Current collector.

Claims (1)

[Scope of Claims] 1. A conveyance device having a rail with a U-shaped cross section and a next distribution conveyance vehicle and a collection conveyance vehicle into which traveling wheels are fitted. A plurality of lever shafts are arranged one side apart in the traveling direction on one side of the distributing transport trolley, and each lever shaft 1 is set at a different height from each other and is biased and held at a limited rotation position outward. A detection lever is fixed on the other side of the trolley, and a mounting surface is formed on the other side of the trolley, which corresponds to each detection lever shaft, and whose protruding dimension toward the other side is different in a stepwise manner by one step in the running direction. The upper part of the hook plate to which the hook pin is fixed on the mounting surface (1) and the lower part (1) can be rotated outward from the other side. and a hole with one hook pin on the mounting surface (inserted into the hole between each corresponding lever shaft and each hook plate for rotation of the lever shaft)
child. A transmission means is provided to rotate the hook plate outward by one angle, and while the trolley is running, a striker installed at the delivery point engages a specific detection lever corresponding to the height and rotates it. Then, the corresponding hook plate is rotated outward to move the hook pin within the above-mentioned interval and disengage the hook pin from the suspended article. a winding pulley, each of the two flat suspension belts wound one over the other (a container suspended from the front and back, and a predetermined upper limit position detection device for the container,
It has a current collector that receives the detection signal of the detection device and the electric power for electric drive from each stop point to an external control device.