JPH0986631A - Crate vertical conveyer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vertical conveying means for a crate surely performing its vertical conveyance also having large conveying power with a simple structure in lieu of an elevator conveyer. SOLUTION: A conveying path (c) of S-shaped side surface, enveloped by the first to third conveying guides 12, 13, 14, is formed, on the other hand, a top chain 20 is arranged along the first conveying guide 12, and this top chain is wound to a sprocket 17 to be made rotatable. Further, a boss of prescribed pitch is protrusively provided in the top chain 20, this boss is hook engaged with an irregular bottom surface of a crate so as to easily surely vertically convey it along the conveying path (c), so that a vertical conveyer A of fast conveying speed is constituted.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a conveyor, and more particularly to a crate vertical conveyor.

[0002]

2. Description of the Related Art Crate (carrying box) used for carrying goods
Collects it and, for example, washing it for reuse,
When the product is transferred to the product packaging process position, the transfer route from the collection position in the factory to the product packaging process position often needs to pass through, for example, an upper floor and a lower step. In this case, generally, an elevator conveyor which is well-known and widely used in various fields is used as a transfer means between them for vertical transportation so as to save space as much as possible.

[0003]

However, in this case, however,
An elevator conveyor, for example, vertically raises or vertically lowers a large number of horizontal mounting bases, while its operation is such that the crate is moved horizontally to be inserted into the mounting base and stopped while being mounted. There is a structural problem that the crate transfer cycle is slow and the transfer capability is low due to the time loss due to the stop of the crate insertion and transfer because it becomes an intermittent one that rises or descends after the mounting is completed, and it also operates intermittently. Since a large number of sensors are required, troubles due to sensor failures and malfunctions are likely to occur and the carrying capacity tends to be further reduced. Especially, using a carrying conveyor as a horizontal crate transfer means, If an intervening transfer system is configured, the transfer capacity is significantly inferior to that of a transfer conveyor, and this easily becomes a bottleneck in the transfer system.

The present invention has been made in view of the above circumstances, and a problem to be solved by the present invention is to make the structure as simple as possible to ensure the vertical conveyance of the crate, and to prevent troubles and as much as possible. It is an object of the present invention to provide a vertical transportation means of a crate which can secure a large transportation capacity.

[0005]

According to the present invention, in order to solve the above-mentioned problems, the crates to be conveyed generally have a downward protruding fitting rib (positioning leg) on the bottom surface thereof for positioning during vertical stacking and for preventing misalignment. The bottom plate is provided with a grid or coarse mesh for drainage or the like, or similar reinforcing ribs are arranged on the back surface of the bottom plate to form a synthetic resin integrated mold having an uneven bottom surface. The vertical bottom surface of the crate is used for its vertical transportation. To this end, the bottom surface of the crate is hooked and engaged, and it is tumbled. In order to complete the vertical conveyance, an S-shaped conveyance path is formed by a guide for guiding the crate, and a conveyor structure similar to a belt conveyor or a slat conveyor is formed on the conveyance path. On the other hand, the crate catching projections for catching engagement of the bottom surface of the crate are provided at a predetermined pitch on the endless carrier forming the endless carrier. Is for guiding the bottom side of the crate to be conveyed, which is arranged so as to form a sideways S-shaped conveyance path that is intermediately vertical and curved at both ends between the conveyance start end and conveyance end of the lower and front upper or upper and front lower. A first transport guide and a second transport guide for guiding the upper end of the crate to be transported, which is arranged in parallel with the first transport guide at a distance from the first transport guide, and one of the first transport guide and the first transport guide below the transport start end side and the transport end side. Upper and lower rotating bodies using a motor-driven vehicle, an endless transport body that is wound around the upper and lower rotating bodies and arranged, and is rotatable in the transport direction by the motor drive. Its head And a crate hooking projection that is hooked and engageable with the concave and convex bottom surface of the conveyed crate, with a predetermined pitch in the direction so as to project from the first conveying guide to the side of the conveying path. According to a second aspect of the present invention, there is provided a crate vertical conveyor, characterized in that the conveyor path is curved to form an S-shape on the side surface. The physical relationship becomes a state of line contact (or point contact), and there is a possibility that the crate catching projection may escape from the bottom surface of the crate uneven surface and come off depending on the embodiment, that is, the curvature radius of the curve and the projection length of the crate catching projection. Therefore, in any of the above-mentioned S-shaped curved portion and outside curved portion, the crate hooking engagement is performed at a plurality of points, and at least one of the hooking engagements is secured as much as possible. Secondly, in order to improve the certainty of the vertical transportation of the crate due to the passage of the crate, secondly, in the relationship between the transportation path and the crate, the guide of the crate has a play so that it can be smoothly curved. When the crate swings through the crate and the crate catching projection is disengaged to allow the crate to slip with respect to the endless carrier when the crate passes through the crate, the crate catches one or more of the succeeding or preceding crate. Thirdly, in order to improve the certainty of vertical transportation of crates by passing through the crates at the curved portion, the projection is hooked again at the intermediate position in the crates transportation direction and picked up again. When the uneven bottom surface in is relatively dense, the crate catching protrusion interval changes in the expanding direction or the contracting direction especially in the curved portion of the S-shaped conveyance path. In order to prevent the crate and the crate hooking protrusions from being damaged by the external force applied by the crate hooking protrusions on the convex bottom surface, the hooking engagement of the crate hooking protrusions is positively disengaged when the crates pass through the curved portion. When the crate is allowed to slip on the endless carrier in the same manner as described above, one of the succeeding or preceding crate catching projections again catches at the intermediate position in the crate carrying direction and picks up the same. In order to improve the reliability of the crate vertical transportation by passing the crate, the arrangement pitch of the crate hooking projections according to claim 1 is set to a pitch equal to or less than the length of the transported crate transportation direction in the crate hooking projections. A crate vertical transport conveyor, characterized in that hooking engagement is performed at a plurality of locations in the transport direction of the transported crate. , Claim 3
Further improves the certainty of vertical transport of the crate by the transport path, and prevents the swinging to the side and the disengagement of the crate catching protrusion due to the lateral swing.
Alternatively, in addition to the first and second conveyance guides, the third conveyance guide for guiding both sides of the conveyed crate to be separated from and in parallel with the second conveyance guide is provided. According to the present invention, the rotation feeding of the endless carrier and the crate transportation by this are ensured, and at the same time, the water resistance can be secured even in the vertical transportation of the crate immediately after cleaning, and the itself can be secured as necessary. In order to be washable, this is a crate vertical transport conveyor characterized in that the upper and lower rotary bodies of any one of claims 1 to 3 are sprockets and the endless transport body is a transport chain. As a conveyer for vertical lifting, precision is eliminated, and the rough construction is used to prevent troubles from occurring and to securely hold the crate to be conveyed for vertical movement. As can be fed, so as to place it made to have a sufficient margin in the transport chain length,
The upper sprocket of claim 4 is a motor-driven vehicle, the lower sprocket is a driven vehicle, and the transport chain has a length equal to or greater than the required length of upper and lower sprocket windings.
The carrying chain is meshed with a lower sprocket, and is hung and supported by the upper sprocket in a weight-suspended manner so as to hang down below the sprocket and float above the curved lower transport path. The above-mentioned crate vertical conveyors are used as means for solving the above problems as the gist of the invention.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described in more detail with reference to the drawings showing examples of the following embodiments. A is between the horizontal conveyors B on the upper and lower floors from the lower floor to the upper floor. It is a crate vertical transfer conveyor having a slat conveyor structure, which is provided so as to be used by connecting the two together. The conveyor A includes a first transfer guide 12, a second transfer guide 13, a rotating body, an endless transfer body, and Crate hooking protrusion 2
3, and in the present example, the first transport guide 1 is further provided.
The third transport guide 14 is provided in addition to the second transport guide 13.

First transport guide 12 and second transport guide 1
Numeral 3 is a guide for the bottom surface side of the conveyed crate 1 which is arranged so as to form a medium-vertical side-faced S-shaped conveying path c between the lower and upper upper conveying start ends a and the conveying end ends b, and the first and the second. The first transfer guide 12 is arranged in parallel with the first transfer guide 12 and is for guiding the upper end of the transfer crate 1.
Are for guiding both sides of the conveyed crate 1 which are arranged in parallel with each other.

That is, the first to third transport guides 12, 13,
Reference numeral 14 denotes a metal, particularly steel, frame 10 fixedly erected in a frame between the upper and lower floors, namely, the lower transporting end a on the lower floor, that is, the upper transporting end, that is, the transporting front side from the transporting start end to the front. In the present example, a pair of third and third conveyance guides 12 and 13 are fixedly arranged in a relative positional relationship in a spaced-apart parallel manner so as to extend between the deviated upper conveyance ends b. In FIG. 14, each side is formed by a single metal guide rail, especially steel guide rail. At this time, the first transfer guide 12 is used as a reference to set the transfer path c, and the bottom surface of the transferred crate 1 is set. The second contact guide 13 and the third transfer guide 13
The transport guide 14 defines the upper surface and the side surface of the transport path c,
The conveying path c is surrounded by the shape of the conveyed crate 1, and the second conveying guide 13 has the upper end (or upper surface) of the conveyed crate 1 and the third portion.
The transport guides 14 guide the side edges (or side surfaces) on both sides thereof in sliding contact with each other.
The first conveyance guide 12 is a guide base and the second conveyance guide 13 is a guide holding frame for preventing falling between the conveyance start end a and the conveyance end b by the surrounding conveyance path c. The 3 conveyance guide 14 serves as a guide holding frame for preventing lateral swinging so that it can be guided in the conveyance direction.

Further, the conveying path c formed by these is an intermediate vertical,
It has a curved side S shape with its both ends curved, whereby the lower transport start end a and the front upper transport end b are connected with as little space as possible, and the transport of the transported crate 1 is performed at the transport start end a. In this state, the equipment is made to fall sideways on its side, lifted up in that state, and then returned upward by falling on the side of the conveyance end b.

In order to form this S-shaped conveying path c in this example, the first to third conveying guides 12, 13, 14 are
Immediately at the transport start end a, the first transport guide 12 is maximized, the second transport guide 13 is minimized, and the third transport guide 14 is in the middle thereof. However, for example, after shifting vertically upright with a width of about 1 m, it reaches the vicinity of the conveyance end b, and outwardly bends a quarter circle so as to be located on a concentric circle with the same radius of curvature opposite to the above, and then A horizontal portion of several cm is formed on the final end side in the transport direction, and the curved member and the linear member are combined to constitute the first and second transport guides 12, 13 in this example. , 14 are made slightly larger than the outer diameter dimension of the crate 1 so that the guide of the crate 1 on the conveying path c has a play, which causes obstacles such as catching when guiding the crate 1. Smooth this without In addition, the conveyance path c of the present example including the above-mentioned horizontal portion has a total width of, for example, about 2 to 2.5 m. It is a space-saving product that fits in a small area.

The rotary body is located below the first transport guide 12 on the transport start end a side and the transport end b side, and is one of upper and lower parts of the motor 22 driven vehicle. The upper and lower rotating bodies are the sprocket 17, the upper sprocket 17 is a motor 22 driven vehicle, and the lower sprocket 17 is a driven vehicle.

That is, each sprocket 17 as the upper and lower rotating bodies
In this example, it is arranged so as to be located at the center position of the conveyance path c and is fixed to the shaft 18 erected on the frame 10. In the higher order, the shaft 18 is installed on the frame 10 and the torque limiter is set by the motor 22. 1
It is assumed that the upper sprocket 17 on one side is a driving wheel and the lower sprocket 17 is a driven wheel on the other hand, so that the above arrangement is performed.

The endless carrier is wound around the upper and lower rotating bodies and arranged so as to be rotatable in the carrying direction by the motor drive. In this example, the endless carrier is This is due to the transport chain, which meshes with the sprocket 17, which is the upper and lower rotating body, and rotates from the lower transport start end a toward the front upper transport end b in the transport direction by driving the motor 22. It is free.

At this time, the carrier chain of the endless carrier is
In addition to the top chain 20, a TP type top chain (plate top chain) is used from among various top chains, and the first transport guide 1
Two guide rails are arranged at a central position between the pair of guide rails so as to be substantially flush with the guide rails.
0 is in the conveyance path c and follows it.

Further, the top chain 20, which is a transport chain for an endless belt of this example, has a length longer than the required length for winding the upper and lower sprockets 17, and the top chain 20 is meshed with the lower sprockets 17 and below The upper sprocket 17 is hung and supported by the upper sprocket 17 in a weight-suspended manner so that it hangs down and floats above the curved conveying path c.

That is, in this example, the top chain 20 is
The relative length of the upper and lower sprocket has a margin of more than the required winding length of the 17 sprocket, that is, the required winding length along the conveyance path c, for example, 1.1 to 1.2 times as long as an endless length. In addition, the winding installation on the sprocket 17 meshes with the upper sprocket 17, suspends and supports the same, meshes with the lower sprocket 17, and hangs downward to the start of conveyance. The upper sprocket 1 is set so as to float above the conveyance path c at the a-side curved portion.
7 has a self-weight hanging shape. At this time, in this example, it is possible to ensure a good condition of the above-mentioned interdental descent and floating on the conveying path c, and to surely perform the crate conveyance by the top chain 20. Therefore, the top chain 20 partially guides the upper and lower endless guides, that is, the chain guides 21 installed in the vicinity of the upper and lower sprocket 17, in the upper and lower end, and the rest is a free state without a guide. The above-mentioned suspension support is provided in
At this time, the chain guide 21 of this example is in contact with the lower surface of the top chain 20 on the upper side of the top chain 20 on the side of the conveyance path c and the non-conveying side, and on the side of the lower side of the top chain 20 so as to support it on the lower side. Each side S to stop and support
At the curved portions on both sides of the transport start end a and the transport end b of the letter-shaped transport path c, the first transport guide 12, that is, the transport path c has the same radius of curvature of ¼ circle, and thus the top chain is formed. 20 is always supported on the lower surface by chain guides 21 on the upper conveyance path c side and the non-conveyance path side, while it hangs downward with its lower sprocket 17 on the non-conveyance path side by its own weight and is conveyed by its own weight. In the transport path on the side of the starting end a, the upper and lower chain guides 21 are floated on the curved transport path c so as to form a tangent line and partially project onto the first transport guide 12.

As a result, the vertical conveyor A drives the sprocket 17 on the upper side of the driving vehicle to make the sprocket 17 in the ascending direction, and the top chain 20 meshes with the sprocket 17 on the upper and lower sides. Then, when installed around them, the precision which causes factors such as poor meshing and misalignment due to elongation of the top chain 20 is eliminated, and the structure is made as rough as possible. When the upper sprocket 17 is driven by the motor 22 at this time, the top chain 20 in mesh with the upper and lower sprocket 17 and in the hanging state and the floating state of its own weight surely rotates in the ascending direction. When the transport path c receives the transported crate 1 transported by the horizontal transport conveyor B, the top chain 20 resists its own weight to the second position. By elastically pressing the conveyed crate 1 so as to exhibit a cushioning property in the direction of the feeding guide 13, the conveyed crate 1 is reliably held between the first conveying guide 12 and the second conveying guide 13 and the sliding thereof is performed. The contact guide is rotatably arranged along the first transfer guide 12, and thereby the transferred crate 1 can be vertically lifted while preventing its vertical swing.

The crate hooking projections 23 are integrally provided on the top chain 20 which is a transport chain of an endless transport body so as to project from the first transport guide 12 to the transport path c side at a predetermined pitch in the longitudinal direction. It is arranged so that it can be hooked and engaged with the uneven bottom surface of the transported crate 1,
Further, in this example, the arrangement pitch of the crate hooking projections 23 is set to a pitch equal to or smaller than the carrying length of the conveyed crate 1 and the engaging engagement of the crate hooking projections 23 is set in the conveying direction of the conveyed crate 1. It is supposed to be done in multiple places.

In this embodiment, the crate hooking projections 23 are made of tapered large diameter round steel vertically welded to the surface of the top chain 20 on the side of the conveying path c where six plates are placed, and are formed by short rod-shaped bosses. When receiving the crate 1 to be conveyed, the crate 1 is hooked and engaged with the uneven bottom surface of the crate 1 to be hooked and held on the top chain 20 to carry the crate 1.

That is, the conveyed crate 1 of this embodiment has downward protruding fitting ribs which conform to the rectangular bottom shape, leaving a stacking margin on the outer periphery for positioning for vertical stacking and displacement prevention on the bottom surface, that is, The crate hooking projection is made of a resin integrally formed with a synthetic resin having an outer peripheral positioning leg 2 and a relatively dense lattice-like or coarse mesh-like bottom plate 3 for drainage or the like in its surface. Numeral 23 is for engaging with the uneven surface by being inserted into the through holes of the lattice-like or coarse mesh-like bottom plate 3 of the conveyed crate 1, and at this time, the pitch of the crate engaging protrusions 23 is uniform. The crate catching projections 23 are provided at two places, a through hole of the bottom plate 3 located on the outer peripheral positioning leg 2 on the leading side of the conveyed crate 1 and a through hole in the middle of the bottom plate 3 located therebetween.
Is set so that the crate 1 is conveyed, that is, the pitch is equal to or less than the length of the conveyed crate 1, that is, the length of one side of the rectangular shape in the conveyed state along the conveying direction.
At the time of receiving on the side of the conveyance start end a of the conveyance path c, the leading crate hooking projection 23 catches and engages with the leading end of the conveyed crate 1 and then the subsequent next crate hooking projection 23. The relative positional relationship between the horizontal bottom surface of the conveyed crate 1 and the top chain 20 at the curved portion which is hooked to the corresponding middle portion and curved inward on the side of the conveying path c at the conveying start end a is the position of both ends of the conveyed crate 1. In the curved portion curved outward on the transport end b side, the line contact is made at the central position of the transported crate 1 while the transport path c is brought into the surface contact at the vertical portion and the horizontal portion. Also in 2 of the above-mentioned transported crate 1
It is possible to secure the hooking engagement at one place as much as possible, and to secure the hooking engagement for the other one as much as possible even if one of them comes out. With the above play in the guide of crate 1 to smoothly guide the crate 1, the uneven bottom surface of the grid or coarse mesh bottom plate of the crate 1 is relatively dense, and , It is prevented that the crate 1 or the crate hooking projections 23 are damaged due to the external force of the crate hooking projections 23 being applied to the uneven bottom surface by changing the interval between the crate hooking projections 23 in the expanding direction or the shortening direction particularly in the curved portion. Therefore, when the curved portion passes through the crate 1, the crate 1 swings to disengage the claw hooking projection 23 from the hooking engagement.
The crate 1 is allowed to slip with respect to the top chain 20 and is positively carried out, and at the time of this slip, the crate hooking projections 23 at the succeeding one to the next order are the crate 1 which slipped.
The catching engagement is performed again at the intermediate position in the conveyance direction so that it can be picked up. The crate 1 is reliably conveyed in the hooked engagement state.

The crate vertical conveyor A thus constructed is used so as to form a series of crate conveyor systems with the horizontal conveyors B on the upper and lower floors in this example.
By arranging them so as to partially overlap the transfer start end a side and the transfer end b side between the horizontal transfer conveyors B, the transferred crate 1 is received from the horizontal transfer conveyor B on the lower floor and the horizontal transfer conveyor B on the upper floor is received. It is possible to perform vertical conveyance of upper and lower floors, which is sent to the conveyor B.

At this time, the vertical conveyor A has a slat conveyor structure in which the top chain 20 is freely rotatable by the sprocket 17, so that the conveyor speed is as high as that of the horizontal conveyor B and the crate to be conveyed 1 Of the first to third transfer guides 12, 13 and 14 and the top chain 20
A simple structure can be provided with the crate hooking projection 23 arranged so as to project from the upper part of the crate, and the crate hooking projection 23 can be reliably and always secured by hooking and the second chain by the top chain 20.
By the slide contact guide between the first transfer guide 12 and the second transfer guide 13 under elastic pressure on the transfer guide 13 side and the slide contact guide under the lateral swing prevention of the third transfer guide 14, the conveyed crate 1 It is possible to perform reliable and smooth vertical conveyance in the conveyance path c having the side surface S shape.

In the figure, 11 is a support rod of the second transport guide 13, 15 is a lower water receiver on the transport start end a side, and 16 is a higher water receiver on the transport end b side.

Although the example of the illustrated embodiment has been described above, in the practice of the present invention, the first and second conveying paths are formed between the upper and lower front conveyance start ends and the conveyance end ends.
By arranging the transport guide and the second transport guide, the vertical transport crate is configured for vertical descent from the upper floor to the lower floor, the lower of the upper and lower rotating bodies is the motor driven vehicle, and the upper is the driven vehicle. The vertical conveyor has a belt conveyor structure by using the rotating body as a roller and the endless conveyor as an endless belt. When the rotating body is a sprocket and the endless conveyor is a conveyor chain, Other than the top chain, the transport chain shall be equipped with an attachment that allows the projection of the crate hooking protrusion to be arranged. When using the top chain, various top chains other than those listed above shall be used. Or, it should be guided by a series of belt guides or chain guides that follow the trajectory of rotation, endless conveyance. The use of intermediate pinch rollers as necessary to carry out the arrangement accompany the transport path,
The arrangement pitch of the crate hooking protrusions is set to a pitch of about 1/2 or less of the conveyed crate conveying length, and the hooking engagement of the crate hooking protrusions includes both end positions and the center position of the conveyed crate. As a place or more,
When the crates pass through a curved part, the crate hooking protrusions are always secured to engage with each other, and a plurality of crate hooking protrusions are provided in the width direction or configured as a block or plate along the bottom surface of the crate unevenness. It is also possible to do, etc., and the first transport guide, the second transport guide, the rotating body, the endless transport body, the crate hooking protrusion, and the third transport used as necessary, provided that these are not contrary to the gist of the invention. Specific shapes, structures, materials, numbers of these guides, sprockets, and conveying chains, their relations, additions to these, and specific forms of use of the crate can be various.

[0025]

As described above, according to the first aspect of the present invention, a side-S-shaped conveying path is formed between the lower and upper upper portions or the upper and lower portion of the conveying start end and the conveying end, which are intermediate vertical and curved at both ends. A first transport guide for guiding the bottom surface side of the transported crate, and a second transport guide for guiding the upper edge side of the transported crate, which is spaced apart and parallel to the first transport guide.
The upper and lower rotors, which are arranged under the first transport guides on the transport start end side and the transport end side and one of which is a motor-driven vehicle, and are wound around the upper and lower rotors, are disposed and are driven by the motor. An endless carrier which is rotatable in the carrying direction, and an endless carrier which is integrally projectingly arranged at a predetermined pitch in the longitudinal direction so as to project from the first carrier guide to the carrier path side, and to be transported. Since the crate catching projections are provided on the bottom surface of the unevenness of the crate, the crate catching protrusions being freely engageable with the crate, the first transport guide, the second transport guide,
The structure is as simple as possible with upper and lower rotating bodies, endless carriers, and crate catching protrusions, so that the conveying speed is fast and the crate conveying capacity is as large as possible. By directly utilizing it for vertical conveyance, a crate hooking protrusion having a predetermined pitch is hooked and engaged, and by the slidable contact guide of the first conveyance guide and the second conveyance guide, the crate is vertically conveyed by the side-S-shaped conveyance path. It is possible to provide a crate vertical transfer conveyor that is simple and reliable, saves space, has no transfer problems, and has excellent durability.

According to a second aspect of the present invention, the arrangement pitch of the crate hooking protrusions is equal to or less than the length of the conveyed crate in the conveying direction, and the crate hooking protrusions are engaged at a plurality of positions in the conveying direction of the conveyed crate. In addition to the above, in addition to the above, the side surface S
While the crate has a curved portion, the bottom surface of the crate is horizontal, which prevents the crate catching protrusion from escaping due to the radius of curvature of the curved part and the protruding length of the crate catching protrusion when passing through the bendable part. Corresponding to that possibility, it is possible to secure hooking engagement by one of the crate hooking protrusions as much as possible, and improve the reliability of the crate vertical transfer by passing the crate, and at the same time, realize the relationship between the transfer path and the crate. In relation to this, by providing play in the crate guide so as to perform this smoothly, when the crates pass through the curved portion, the crate swings disengage the catch engagement of the crate catching protrusions, resulting in the endless crate. When slipping is allowed on the carrier, the uneven bottom surface of the crate grid or coarse mesh bottom plate is relatively small. , The crate catching protrusion interval changes in an expanding direction or a shortening direction particularly in a curved portion of the S-shaped conveyance path, and an external force is applied to the bottom surface of the unevenness by the crate catching protrusion, and the crate or the crate catching protrusion is damaged. In order to prevent this from happening, when the crate catching projection is disengaged and the crate slips on the endless carrier in the same manner as described above when the crate passes through the curved portion, the crate catches the trailing or leading end. It is possible to improve the reliability of the crate vertical conveyance by passing the crate at the curved portion by picking up the crate hooking protrusions of one to the second order and catching them again at the intermediate position in the crate conveying direction.

According to a third aspect of the present invention, in addition to the first conveyance guide and the second conveyance guide, a third conveyance guide for guiding both sides of the crate to be conveyed is arranged in parallel with the first conveyance guide and the second conveyance guide. Therefore, in addition to the above, the rocking of the crate laterally is prevented and the possibility of the crate catching protrusion coming off due to this is eliminated, and the reliability of the crate vertical transfer by the transfer path is improved. You can

According to a fourth aspect of the present invention, the upper and lower rotating bodies are sprockets, and the endless conveyor is a conveying chain. Therefore, in addition to the above, rotational feeding of the endless conveyor and crate conveyance by the same are also provided. In addition, it is possible to ensure that the crate is vertically transported immediately after cleaning and that it is water resistant enough to clean itself.

According to a fifth aspect of the present invention, the upper sprocket is a motor-driven vehicle and the lower sprocket is a driven vehicle, and the transport chain has a length equal to or greater than a required length for winding the upper and lower sprockets. It is characterized in that the sprocket is meshed with the upper sprocket in a weight-suspended manner so as to hang down below the sprocket and float above the curved conveying path. In addition, as a vertical conveyor conveyor, precision is eliminated, and the rough construction is used to prevent problems and also to utilize the cushioning effect of the conveyor chain due to its own weight to make the second conveyor guide. Vertically transporting the crate securely and smoothly by guiding the crate slidingly between the first and second transport guides under elastic pressure on the side. It can be made to perform.

[Brief description of drawings]

[Figure 1] Side view of vertical conveyor

FIG. 2 is an enlarged side view of the vertical transport conveyor at the transport start end side.

FIG. 3 is an enlarged front view of the vertical transfer conveyor on the starting side of the transfer.

FIG. 4 is an enlarged side view of the vertical transfer conveyor at the end of transfer.

[Fig. 5] Enlarged rear view of the vertical end of the vertical conveyor.

FIG. 6 is a side view showing the arrangement state of the top chain.

FIG. 7 is a side view showing a state where the crate is vertically conveyed.

FIG. 8 is a perspective view of a vertical transport conveyor at the transport start end side.

FIG. 9 is a side view showing the relationship between the top chain and the crate when vertically climbing.

FIG. 10 is a side view showing the relationship between the top chain on the transport start side and the crate.

FIG. 11 is a side view showing the relationship between the crate and the top chain on the transport end side.

FIG. 12 is a side view showing the relationship between the top chain on the conveying end side and the slipped crate.

FIG. 13 is a rear view showing the relationship between the crate hooking protrusion and the crate.

[Explanation of symbols]

 A Crate Vertical Transport Conveyor B Horizontal Transport Conveyor a Transport Start End b Transport End 1 Crate 12 1st Transport Guide 13 2nd Transport Guide 14 3rd Transport Guide 17 Sprocket 20 Top Chain 22 Motor 23 Crate Hook Protrusion

Claims (5)

[Claims] 1. A guide for the bottom side of a crate to be conveyed, which is arranged so as to form a sideways S-shaped conveyance path which is intermediate vertical between the conveyance start end and the conveyance end of the lower and front upper or upper and front lower ends. Of the first transport guide and a second transport guide for guiding the upper end of the transported crate, which is arranged in parallel with the first transport guide, and below the first transport guide on the transport start end side and the transport end side. Upper and lower rotary bodies, one of which is a motor-driven vehicle, an endless transport body that is wound around the upper and lower rotary bodies and arranged, and is rotatable in the transport direction by the motor drive, and the endless transport body And a crate hooking protrusion that is hooked and engageable with the concave and convex bottom surface of the crate to be conveyed so as to project toward the conveyance path side from the first conveyance guide at a predetermined pitch in the longitudinal direction. To become a Crate vertical conveyor. 2. The crate hooking projections according to claim 1 are arranged at a pitch equal to or less than the length of the conveyed crate in the conveying direction, and the crate hooking projections are engaged at a plurality of positions in the conveying direction of the conveyed crate. A crate vertical conveyer characterized in that 3. The first transport guide and the second transport guide according to claim 1 or 2.
In addition to the transport guides, a crate vertical transport conveyor characterized in that it is provided with third transport guides for guiding both sides of the transported crate, which are spaced apart and parallel to each other. 4. A crate vertical conveyor comprising the upper and lower rotating bodies of any one of claims 1 to 3 as a sprocket and the endless conveyor as a conveyor chain. 5. The upper sprocket according to claim 4 is a motor-driven vehicle, the lower sprocket is a driven vehicle, and the transport chain has a length equal to or greater than a required length for winding the upper and lower sprockets, and the transport chain is a lower one. A crate vertical transfer conveyor, which meshes with a sprocket, hangs down below the sprocket, and is suspended and supported on the upper sprocket in a weight-suspended manner so that the sprocket floats above the curved transport path.