JPS63247205A - Vertically storing method for transported article and device thereof - Google Patents

Abstract

PURPOSE:To reduce the dimension and weight of the captioned device and improve efficiency by traveling a transport device by an endless chain between an upper part delivery port and a lower part carrying-out port and releasing the engagement between the chain and the transport device at the carrying-out port and storing the transported articles between the delivery port and the carrying-out port, in the captioned device of a high storied type rotary rack. CONSTITUTION:When a tray C is pushed out onto an arm 20, a hook 40a retreats as shown by the two-point chained line, and slipped off from a carrier body 19, and a slip-off force acts onto the carrier body 19 by the load of the tray C and its dead weight, and the carrier body 19 is engaged with a chain 8a by a one-way clutch, and lowers together with the chain 8a, and delivered to a conveyor L for carrying out. When the excessive quantity of trays C is stored on the conveyor L at this time, an air cylinder 39c is operated to release the engagement of the hook 40c, and the carrier body 19 is released from the chain 8a. Therefore, the chain 8a idly revolves, and the tray C is put into wait ing above the conveyor L. With such constitution, efficiency can be improved.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a vertical unloading and conveying technology provided adjacent to, for example, a high-rise type horizontal rotating rotary rack.
In particular, a vertical storage method for conveyed items in which trays received by an automatic extraction device installed parallel to the outlet of a rotary rack are temporarily stored in the middle of the device and efficiently transported to a lower conveyor, etc. and regarding its equipment.

[Conventional technology]

In recent years, as part of FA (factory automation), automated warehouses that supply processed products and work-in-progress to production lines in a timely manner have become popular. A rotary rack system is installed that allows for loading and unloading.

The trays extracted from the rotary rack are usually sequentially delivered onto a horizontal conveyor line and transported to a work station or picking station. In this case, the so-called accumulation (
In order to shorten the waiting time for work, trays are temporarily stopped by creating storage sections.

However, providing an accumulation section on a conveyor line to store a large number of trays inevitably leads to an increase in the length of the conveyor line and an increase in the area occupied by the warehouse. Therefore, when it is desired to make effective use of warehouse space, or in a warehouse with a small space, in addition to the above-mentioned accumulation on the conveyor line, a vertical accumulation method using the surplus space above and below the warehouse is required.

Therefore, the applicant of the present application previously proposed in Japanese Patent Application No. 60-97866 that a plurality of trays are temporarily stored in an elevator frame while the trays are conveyed vertically and taken out to a conveyor from an outlet at the bottom. We have proposed a conveyed object storage device that can efficiently convey objects =4-.

[Problem that the invention seeks to solve]

In the conveyance storage device of the above-mentioned prior application, on both sides of the passage of the vertical frame,
A pair of endless chains running vertically was arranged, and the conveyed object was supported by both chains and lowered, so the entire device tended to be large and heavy, and the number of chains was large. The drive mechanism for driving the chain is complicated, and there are problems such as the cost required for assembly and manufacturing, and the cost of equipment for installing it.

In addition, since the endless chain is driven intermittently by the drive motor, it was not possible to improve conveyance efficiency.The present invention was developed in view of the above problems, and aims to reduce the size, weight, manufacturing cost, equipment cost, etc. It is an object of the present invention to provide a vertical storage method and device that can reduce the amount of damage caused by the oxidation process, rapidly and continuously transport and store trays, and improve work efficiency.

[Means for solving problems]

Specific means according to the present invention for solving the above problems are the following methods and devices.

(]) - A method of transporting goods from the unloading port 1 on the Jz side to the lower exit, in which an endless chain with an elliptical trajectory in the vertical direction is constantly rotated, and a plurality of When the preceding conveying device that has engaged the conveying device and rotated together with the chain and transferred the goods from the outlet comes into contact with the engaging mechanism f] provided at the outlet and stops, When the one-way meshing means provided in the device is released and disengaged from the chain, and the one-way meshing means provided in each device is brought into contact with a plurality of succeeding conveyance devices or a leading conveyance device in sequence, the one-way engagement means also provided in each device The meshing means is released, and the conveyance device carrying the transferred objects is stored vertically in a row between the exit port and the carry-out port, and the locking mechanism is released to sequentially carry out the objects from the carry-out port. A method for vertically storing conveyed objects, characterized in that:

(2) A device for transporting goods from one side of the warehouse to a lower loading port, in which sprockets installed at the top and bottom of the frame are used to move goods between the frames that are spaced apart from each other. A pair of endless chains that constantly rotate in an elliptical trajectory in the vertical direction, a pair of front and rear guide rails that are fixed perpendicularly to the frame along the chains, and a chain that is guided by the guide rails. a plurality of conveyed objects that rotate together with the chain and include means for engaging the chain; one-way engagement means for preventing falling when descending and disengaging from the chain when stopping; and means for preventing falling when ascending. a conveyance device; a locking mechanism installed on a frame near the exit and carry-out ports to stop the descent of the conveyance device; A vertical storage device for conveyed objects, characterized by comprising a detector for detecting.

[For production]

According to the vertical storage method and device configured as described above, the conveying device engaged with the endless chain is prevented from falling by the one-way engagement means when descending, and by the fall prevention means when ascending, so that it is integrated with the chain. When the transport device is stopped by each locking mechanism,
The one-way engagement means and fall prevention means operate, and only the chain continues to rotate.

On the other hand, when the locking mechanism installed below the frame near the exit is operated, the descending conveyance devices stop in a row with the conveyed items placed one after another, and are stored vertically and wait. can be put into a state. When the locking mechanism is released, the one-way engaging means engages with the chain again, and the stored conveying device is lowered, allowing the conveyed object to be quickly carried out.

〔Example〕

Hereinafter, one embodiment of the apparatus of the present invention will be described based on the drawings, and I believe that the method of the present invention will become clear from this.

1 and 2 show a side view and a front view of the entire storage device according to the present invention, and show a frame (1,) (
1) are erected in parallel with each other at a predetermined distance, with stays (2) (2) installed at predetermined positions above, below, and in the middle.
The frames (1) and (1) are reinforced by horizontally suspending them.

(3) is a side plate, which is fixed to the open part at the rear (right side in Figure 1) of the frame (1) (1), so that the frame (1) (]) has a U-shape in plan view. There is.

A guide rail (4a) is provided near the inner front and in the center of each frame (1) to guide the conveyance device (to be described later).
(4b) are vertically provided in pairs facing each other.

Frame (1) At the top and bottom of (1) are horizontal pivots (5
a).

(5b) are respectively pivoted, the upper pivot (5a) has a pair of left and right driven sprockets (6a) (6b), and the lower pivot (5b) has a pair of left and right drive sprockets (6b).
7a) and (7b) are pivoted to face each other.

Each opposing sprocket (6a) (7a) below these two
Between (6b) and (7b) is an endless chain (8a) for suspending and transporting a conveying device to be described later.
(8b) is stretched so as to run around in an elliptical trajectory.

The lower axis (5b) is connected to the drive motor (9) and the reducer (1).
A drive mechanism (11) consisting of a coupling (12
) are connected.

The upper pivot (5a) is the chain tensioner (13a)
(13b) so as to be movable up and down, making it possible to adjust slack during tensioning and use of the nin dress chains (8a) and (8b).

Next, the conveying device (15) will be explained with reference to FIGS. 3 to 5.

The conveyance device (15) is provided at the lower front side of a backward U-shaped carrier body (19) consisting of side plates (16a) (16b), a bottom plate (17a), a top plate (17b), and a front plate (J8). The arms (20) have an inward U-shaped cross section, and a pair of sprockets (21a) are provided symmetrically in the carrier body (19) and constitute means for engaging the chains (8a) and (8b). ) (21b), and two upper and lower idle rollers (22a) (22a), (22b) (2
2b), a one-way clutch mechanism (24) provided coaxially with the sprockets (21a) and (21b) and constituting a one-way meshing means, and the carrier body (19).
) is comprised mainly of a ratchet (25) that constitutes a fall prevention means and a lock lever (26) that engages with the ratchet (25).

The arm body (20), as shown in FIGS. 3 and 4,
There is a bottom hole (1) at the bottom of the front plate (18) of the carrier body (19).
7a) An angular support (
The arm body (20) is pivotably supported on the arm body (27) by means of stepped bolts (28) (28), and the arm body (20) is held horizontally with its lower surface abutting the support body (27).

Note that the arm body (20) may be attached by a hinge or the like other than by the stepped bolt (20).

The sprockets (21a) (21b) are fixed to a sprocket shaft (30) that is pivotally supported via bearings (29) (29) at approximately the center of the side plates (16a) (16b) of the carrier body (19). The mutual dimensions are the sprockets (6a) (6b), (7a) provided above and below the frame (1) (1).
(7b) is set equal to the dimension between.

The one-way clutch mechanism (24) is connected to the sprocket shaft (
30), and is fixed to the bottom hole (17a) via the support (31).

This one-way clutch mechanism (24) is a known mechanical one-way clutch, and although not shown, a large number of cams arranged on the circumference between the inner and outer rings engage and mesh depending on the relative rotational direction of the inner and outer shafts. By performing a sliding action, driving force is transmitted in only one direction.

In this embodiment, when the sprocket shaft (30) or the sprocket (21b) rotates in the direction of arrow A (clockwise) in FIG. It is designed so that it spins idly when it rotates.

The ratchet (25) is a disc-shaped cam in which a part of the circumference is stepped in the centripetal direction to form a locking part (25a), and the radius is continuously changed.
0).

A lock lever (26) that engages with this ratchet (25)
) is bent into a dogleg shape, and the bent part is connected to the bottom plate (17
A pin (32) is attached to the bracket (32) fixed to the
It is pivotably supported at a). Further, the lock lever (26) is located approximately in the middle of the upper arm of the lock lever (26).
) is attached to a tension spring (33) that always urges the sprocket shaft (30).

As shown in FIG. 4, the tip of the lower arm of the lock lever (26) is connected to the ratchet (25).
), the bottom plate (1
It is designed to protrude slightly downward from the air space (D) formed in 7a).

Two upper and lower idle rollers (22a) (22b) are provided symmetrically within the carrier body (19).
is installed as follows.

That is, as shown in FIGS. 3 to 5, the left and right side plates (16a) are located above and below the rear of the sprocket shaft (30).
(16b), roller shafts (3
4a) (34a), (34b) (34b), and insert bearings (35a) (35
The idle rollers (22a) and (22b) are fitted through the rollers a), (35b) and (35b), and each is prevented from being removed using a lock nut (36).

The ends of the roller shafts (34a) (34b) projecting outward from the side plates (16a) (16b) are connected to the guide rails (4a) (4) erected on the frames (1) (1).
a) , (4b) (4b), guide roller CI)
7a) (:37aL (37b) Supported via (37b).

The left and right opposing idle rollers (22a) (22b
) are the dimensions between sprocket (2], a) (21, b
) is equal to the dimension between the endless chain (8a)
(8b) consists of two upper and lower idle rollers (22a) (22b), a sprocket (2), and a
) (21b) in a horizontal U-shape, that is,
The sprockets 1 to (21a) (21, b) are wound around half a turn and stretched.

Here, the mutual relationship between the left and right sprockets, the upper and lower idle rollers, and the upper and lower idle rollers will be explained in detail with reference to FIG. 6.

For convenience, to explain the sprocket and idle roller on one side as an example, eye 1 roller (22a) (2za)
The dimension (L, ) between the sprocket (2]-a) and the dimension (L2) between the eye 1 and the roller (22a) are determined as prescribed dimensions based on empirical rules for the following reason.

That is, as shown in FIG. 6, the chain (8a) wound in an approximately 11-shape between the sprocket (21a) and the lower eye 1 to the roller (22a) is connected to the driven sprocket 1.
- When engaging with the sprocket (6a) and rotating in the counterclockwise direction of the arrow in the figure with the sprocket (6a), moving to linear rotation,
The front (rotation direction side) guide roller (22a) has a radius (A) of the rear guide roller (22a).
It tries to move away from the sprocket (6a) with the trajectory of the sprocket (6a) and the guide roller (2).
2a) The chain (8a) in between also has a radius (R) (
The chain (8a) and the sprocket (6a) tooth tips will interfere if the dimensions L and (L2) in item 1 are not the specified dimensions. This will prevent smooth rotation.

Next, referring again to FIGS. 1 and 2, the conveying device (
15) The locking mechanism will be explained.

Stays (38a) (38b) (38c) are installed horizontally at the upper and lower key points of the frames (1) and (1), respectively, and air cylinders (39a) (39b) are installed on these, respectively.
(39c) is fixed. Air cylinder (39a) (
The rod of 39c) has hook-shaped hooks (40a) (40c) that come into contact with the lower surface of the carrier body (19) to stop the carrier body (19) from descending. installed as possible.

Furthermore, a hook (40b) for stopping the rise of the carrier body (19) is attached to the rod of the air cylinder (3'9b) in the opposite direction to the hooks (40a) and (40c), and is also swingable. ing.

These hooks (40a) (40b) (40c) are
Each lock lever (2) protrudes from the lower end surface of the carrier body (19) when in contact with the carrier body (19).
6) At the same time, contact the tip of the lower arm and lock each lock lever.
(26) is forcibly swung against the tension spring (33).

Next, the operation of the above embodiment will be explained.

First, with reference to Figure 7, the endless chain (8a)
The transfer state of the transfer device (15) according to (8b) will be explained.

In the downward stroke of the carrier body (19), the weight of the carrier device (15) causes the sprocket (2], a) (or sprocket shaft (30)) to rotate in the direction of the arrow shown in the figure, and the chain (8a) ) (only one side shown) attempts to slide down. However, the sprocket "(2
1, a) 1b - (only one shown) is fixed to the sprocket shaft (30), which is connected to the aforementioned one-way clutch mechanism (24).
As a result of this action, the rotation in the direction indicated by the arrow in the figure (clockwise) is locked, and therefore the rotation of the sprocket (2], a), which is used to rotate the chain (8a), is also prevented.

As a result, the carrier body (19) is attached to the chain (8a).
Together with this, they begin to descend as one.

On the other hand, when the carrier body (19) reverses and moves to the upward stroke, the carrier body (19) moves the sprocket (21a) and sprocket shaft (30) in the opposite direction due to its own weight.
It rotates counterclockwise and tries to fall.

At this time, the sprocket shaft (30) tries to idle due to the reverse action of the one-way clutch mechanism (24), but the locking part (25a) of the lock flange ratchet (25) fixed to the sprocket shaft (30) , the sprocket shaft (30) is prevented from rotating in the counterclockwise direction because it immediately comes into contact with the tip of the lock lever (26).

As a result, the carrier body (19) comes to rise together with the chain (8a) in the same manner as described above.

At this time, since the arm body 20 is folded by its own weight, it does not interfere with the side plate (3).

Next, the vertical storage device of the present invention will be explained.

This device is installed next to an automatic extraction device installed in parallel with the exit of a high-rise type rotary rack (not shown), and the tray (C) dispensed by the automatic extraction device is as shown in Fig. 1. The pusher (pushing device) (P) then moves the arm (
20) Automatically placed on top.

While the carrier body (19) is on standby, the hook (40a) supports the carrier body (19) and also comes into contact with the lower end of the lock lever (2G) and pushes it upward, so that the ratchet (25) and is disengaged (see Figure 9), and the one-way clutch mechanism (24) allows the sprocket (21a) to idle counterclockwise, so the chains (8a) and (8b) can rotate without stopping. Continue running around.

In this state, when a signal indicating completion of transfer of the tray (C) to the arm body (20) is issued from the pusher (P) etc. to the air cylinder (39a), the hook (40a) moves as shown in the figure.
It retreats as shown by the dotted chain line and comes off the carrier body (19).

At this time, the carrier body (19) tries to slide down due to the load of the tray (C) and its own weight, but as mentioned above, this is prevented by the one-way clutch mechanism (24), and the chain (8a) ( 8b) and descend together. Then, it is usually transported to a predetermined work station or picking station by a conveyor line (L) that faces the exit at the bottom of the device.

However, due to the conveyor line (L) stopping or work stagnation occurring at work stations and picking stations, many trays (C) are placed on the conveyor line (L).
If a situation occurs in which it is not possible to store the hook (40c), a signal is sent to the air cylinder (39c) to project the hook (40c) into a locked state.

As a result, the carrier body (19) that has descended remains on standby on the conveyor line (L) with the tray (C) placed thereon, and the chains (8a) (8b)
) only runs idle (see Figure 9).

On the other hand, the hook (40a) is connected to the air cylinder (39a).
), for example, a photo sensor or a proximity sensor (
When the carrier body (19) detects that the carrier body (19) has descended, it immediately returns to the locked state and prepares for stopping the next empty carrier body (19).

The hook (40b) is used to temporarily stop the empty carrier bodies (19) that are inverted and ascending, and transfer them one by one to the locking position of the hook (40a), and the air cylinder (39b) is It is activated by the signal from the sensor (S), and at the same time as the carrier body (I9) descends after transferring the tray (C), the hook (40b) is released and one carrier body (19) is transferred. .

After the transfer, the hook (40b) is immediately returned to the locked state upon detection by the sensor (S2).

FIG. 9 shows the carrier body (19) attached to the hook (40b).
) shows the stopped state of the carrier body (I9), which has risen integrally with the chain (8a) as shown in Figure 7.
) comes into contact with the hook (40b), the lock lever (26) and ratchet (25) are disengaged and only the chain (8a) continues to rotate.

Also, when the following carrier body (19) comes into contact with the preceding carrier body (19), the lock lever (26) will similarly come off from the ratchet (25), causing the chain (8a) to come off. ) continues to run.

By the way, ratchet (25) and lock lever (2G)
When the engagement with the sprocket (21a) (2
1b) and the sprocket shaft (30) are temporarily free, and the carrier body (19) temporarily lowers slightly due to its own weight, but the lock lever (26) is held in the axial direction by the tension spring (33). Since the ratchets (25) are biased, they engage again when the ratchet (25) rotates once, and further lowering is prevented.

In this way, as long as the lower hook (40c) is in the locked state, the carrier body (19) on which the tray (C) has been transferred will be transferred one by one to the preceding carriers as shown by the two-dot chain line in Figure 1. A predetermined number of hooks (40a) overlapping each other
(40c) is stored (accumulated).

Figure 9 shows that the carrier body (19) (19) is attached to the hook (
40c) and is in a storage state.

Either the carrier body (19) has descended with the chain (8a) or the carrier body (19) has stopped in advance.
), the lock lever (26) will move from ratchet 1 to
(25) from the locking part (25a), the sprocket (21,a) immediately moves to the one-way clutch mechanism (24).
The carrier body (19), which has descended together with the chain (8a), is stopped in advance of the carrier body (19).
), the lock lever (26) engages the ratchet (
25), the sprocket (21a) immediately rotates in the direction of the arrow shown in the figure by the action of the one-way clutch, causing only the chain (8a) to rotate.

And workstations and conveyor lines (I4)
etc., the air cylinder (39) starts to move normally.
c), the hook (40c) moves back as shown by the two-dot chain line in Figure 1, and the carrier body (40c), which had been waiting until then,
19), the trays (C) can be successively transferred to the conveyor line (L).

In addition, if the line speed is slow, intermittent transfer is also possible. In this case, the sensor (S3) detects that the leading carrier body (19) has descended, and the hook (40c) is immediately locked. , the subsequent carrier body (
19). Then, the hook (40c) is released by a request signal from a workstation or the like, and the next carrier body (19) is lowered.

As described above, according to this device, a plurality of conveying devices (15) can be placed at arbitrary intervals between the continuously rotating chains 1 to 8 (8a) and 8b, depending on the scale or purpose of use of the device. Depending on the conditions of the conveyor line (1,), workstation, etc., the plurality of carrier bodies (19) after being transferred to the tray (C) can be stored vertically and left on standby.

Note that the present invention is not limited to the above embodiments,
Various modifications and embodiments may be made without departing from the spirit of the invention.

For example, the one-way clutch mechanism, which is a one-way engagement means, may be used as an electromagnetic clutch to electrically prevent the transport device from falling and engage/disengage from the chain, and the air cylinders that operate each hook may be replaced with electromagnetic solenoids. You can also do that.

Furthermore, by providing a plurality of locking portions formed on the ratchet on the circumference -I-, it is possible to minimize the phenomenon of the carrier body temporarily descending when stopped by the hook.

〔Effect of the invention〕

According to the vertical storage method and device of the present invention, the following effects can be obtained.

(+) If the conveyor line facing the 17rt exit stops, or if conveyed items accumulate at a work station, etc., the locking mechanism installed near the exit can be used to lock the And for unloading! Multiple transport devices that have transferred and loaded dredged materials can be lined up and stored. Therefore, it is possible to restart the operation of the container line, or to receive a request for transported materials from a work station, etc. If there is a conveyor, the conveyed items can be carried out one after another, so there are no empty spaces on the conveyor, and the conveyance efficiency is significantly improved.

(2) Since the chain is constantly running, not only during storage of conveyed objects but also during transfer of conveyed objects, the transfer efficiency is much higher than that of general intermittent transfer. Work efficiency can be improved.

(3) A pair of endless chains are constantly running between frames that are spaced apart from each other, and a conveying device equipped with chain engagement means, one-way engagement means, and fall prevention means is engaged with the endless chains. Since the structure is simple compared to the conventional one, it is possible to significantly reduce the size and weight and reduce the loss.

(4) The means for engaging the conveyance device and the chain is provided by the chain being passed around in a horizontal U-shape between the upper and lower idle rollers and the sprocket that is provided with different rotation axes between the idle rollers. , the engagement length of the chain with respect to the sprocket i is increased, and the load acting on the teeth of the sprocket is reduced.

[Brief explanation of the drawing]

FIG. 1 is a side view of the entire device according to the present invention with the frame partially cut away, FIG. 2 is a front view of the entire device, and FIG. 3 is an X-X line of the transport device in FIG. 1. 4 is a vertical sectional side view taken along the Y-Y line in FIG. 3, FIG. 5 is a view taken along the line 2-2 in FIG. 4, and FIG. 6 is a U-shaped wound FIGS. 7 to 9 are explanatory diagrams showing the state in which the chain rotates together with the sprocket, and FIGS. 7 to 9 are explanatory diagrams showing the transporting and stopped states of the transporting device. (1) Frame (3) Side plate (4a)
(4b) Guide rail (6a) (6b) Driven side sprocket (7a) (7b) Drive side sprocket (8a) (8b) Endless chain (11) Drive mechanism (15) Conveying device (1, 6a)
(] 6b) Side plate (17a) Bottom removal (18
) Front plate (19) Carrier body (2
0) Arm body (21a) (21b)
Sprocket (22a) (22b) Idle roller
(24) One-way clutch mechanism (25) Ratchet 1
~ (26) Lock lever (27) Support (28) Step bolt (29) Bearing (30) Sprocket shaft (31) Support (33) Tension spring (34)
a) (34b) Roller shaft (36) Lock nuts 1 to (37a) (37b) Guide roller (3
9a) (39b) (39c) Air cylinder (40a
) (40b) (40c) Hook (C) Tray (1,) Conveyor line (P) Butsusha (
S□) (S2) C83) Written amendment to sensor procedure (voluntary) October 72, 1985 Kunio Ogawa, Commissioner of the Patent Office 1, Indication of the case 1988 Patent Application No. 78771-2, Title of the invention Vertical storage method and device for conveyed objects 3, relationship with the case of the person making the amendment Patent applicant name: Okamura Seisakusho Co., Ltd. 4, attorney 5, amendment order voluntarily issued 6, number of inventions increased by amendment (1) On page 18, lines 14 to 15 of the specification, "lock flan ratchet" is corrected to "ratchet." (2) On page 21, line 14, "Figure 9" is corrected to "Figure 8." (3) Page 23, lines 4 to 9, “Che...
・Delete up to ``Clutch...''. (4) On page 25, line 4, after "...can be done.", add the following sentence on a new line. "Furthermore, the phenomenon of temporary descent can be completely prevented by providing the following fall prevention means. In other words, as shown in Fig. 10, the carrier body (19)
Extending the sprocket shaft (30) outward from the - side of the
On this shaft (30), the above-mentioned one-way clutch mechanism (
When the mechanical one-way clutch (50) whose locking direction is opposite to 24), that is, the sprocket shaft (30), rotates in the direction of arrow B (counterclockwise) in FIG. 4, the rotation is locked, Conversely, in the direction of arrow A (clockwise)
A mechanical one-way clutch (50) that idles when rotated is installed, and a sprocket with an outer diameter of 1" (21a) is attached to this one-way clutch (50).
A sprocket (51) having approximately the same size as (21b) is externally fitted integrally. Similarly, upper and lower roller shafts (34a) on the negative side of the carrier body (19) extend outward, and each of these has an idle roller (52) parallel to the sprocket (51).
) is inserted so that it can rotate freely. On the other hand, a pivot (5a) (
Each axis of 5b) has a sprocket (6a) (6b
) and (7a) A sprocket (not shown) of the same size as (7b) is provided unrotatably, and an endless chain for locking (not shown) is fixedly stretched between the sprockets. Then, this locking endless chain is used for transporting the carrier main body (19) with a sprocket (21).
, a) (2], b) and each of the upper and lower idle rollers (2
2a) (22b) Endless chain wound between (
8a) Similarly to (8b), it is wound in a horizontal U-shape between the sprocket (51) and the upper and lower idle rollers (52). In the drop prevention means configured as described above, the sprocket (51) integrated with the one-way clutch (50) idles clockwise with respect to the sprocket shaft (30), so that the carrier body (19) can be lowered and raised without any problems. During the lifting process of the carrier body (19), when the ratchet (25) and the lock lever (26) are disengaged, the carrier body (19) moves while rotating the sprocket shaft (30) counterclockwise. It tries to descend due to its own weight, but the one-way clutch (50) immediately activates.
A state in which the carrier body (19) is brought into contact with the hook (40b) by preventing rotation of the sprocket shaft (30) in the counterclockwise cutting direction and by meshing the sprocket (51) with the endless chain for locking. Make sure to keep it as it is. In addition, even when the following carrier body (19) comes into contact with the preceding carrier body (19), it can be stopped sequentially by the same action as described in item 1, and the phenomenon of temporary descent is completely prevented. Ru. When this drop prevention means is used, by making the arm body (20) a fixed type that cannot be folded, it becomes possible to transport, for example, an empty tray (C) or the like from below to above. In addition, in this example, the endless chain for the lock is not endless, but one chain is stretched only on the rising side.
This may be meshed with a sprocket (51) fitted onto the one-way clutch (50) without using the idle roller (52). In this case, in order to increase the engagement of the sprocket (51) with the chain, the chain is preferably stretched as close to the axis of the sprocket shaft (30) as possible. (5) On page 27, line 7, ``It is an explanatory drawing.'' is corrected to ``An explanatory drawing.'' (6) On page 27, line 7, after "...", add a line break and write -4= "Figure 1O is an explanatory diagram showing another embodiment of the present invention. .” is added. (7) Figure 10 will be added to the drawings as shown in the attached sheet. (that's all)

Claims (7)

[Claims] (1) A method of transporting goods from an upper outlet to a lower outlet, in which an endless chain with an elliptical trajectory in the vertical direction is constantly rotated, and multiple conveying devices are attached to this endless chain. When the preceding conveyance device that has engaged the chain and rotated together with the chain to transfer the goods from the outlet comes into contact with the locking mechanism provided at the outlet and stops, the device equipped with a When the one-way engagement means is released to disengage the chain, and when the following plurality of conveyance devices successively abut the preceding conveyance device, the one-way engagement means provided in each device is also released. , between the exit port and the carry-out port, a conveyor device carrying objects to be transported is stored vertically in a row, and the locking mechanism is released to sequentially carry out the objects from the carry-out port. A vertical storage method for transported objects, characterized by: (2) A plurality of empty conveyance devices are brought into contact with a locking mechanism provided at a predetermined position on the ascending side of the endless chain in a row to temporarily store the conveyance devices, and the detection means detects the conveyance devices at the exit. When it is detected that there is no locking mechanism, the locking mechanism is released,
A method for vertically storing objects to be transported according to claim (1), characterized in that the transport devices are used to transport objects one by one. (3) A device that transports objects from an upper outlet to a lower outlet, and uses sprockets installed above and below the frames to extend vertically between frames that are spaced apart from each other. A pair of endless chains that constantly rotate in a circular trajectory, a pair of front and rear guide rails fixed perpendicularly to the frame along the chains, and a chain that is guided by the guide rails and together with the chain. A conveying device for a plurality of conveyed objects, which includes a rotating means for engaging the chain, a one-way engaging means for preventing falling when descending and disengaging from the chain when stopping, and a means for preventing falling when ascending. , a locking mechanism installed on the frame near the exit and carry-out ports to stop the descending of the transport device; and a detector installed near the locking mechanism to detect the presence or absence of the transport device. A vertical storage device for conveyed objects, comprising: (4) A locking mechanism for stopping the lifting of the conveying device and a detector for detecting the presence or absence of the conveying device are provided in the upper part of the frame on the rising side of the endless chain. A vertical storage device for conveyed objects as described in item (3). (5) The means for engaging the endless chain is a sprocket that is provided with different rotational axes between the upper and lower idle rollers and between both idle rollers, and is engaged by passing the chain around in a horizontal U-shape. A vertical storage device for conveyed objects as set forth in claim (3). (6) The vertical storage device for conveyed objects according to claim (3), wherein the one-way engagement means is a mechanical one-way clutch. (7) Claim (3), characterized in that the fall prevention means comprises a ratchet fixed to the sprocket shaft of the chain engaging means and a lock lever pivotally supported on the conveying device. Vertical storage device for conveyed items as described in paragraph.