JP3640597B2 - Short-circuit device for circulation conveyance path - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a short circuit device for a circulating conveyance path that is installed at a counter of a restaurant, etc., and makes a U-turn on an object to be conveyed such as a food container placed and conveyed on the circulation conveyance path.
[0002]
[Prior art]
When a U-turn is made in the middle of conveyance of a transported object in the conventional circulation conveyance path, a belt conveyor is installed between the forward path and the return path of the crescent chain in the middle of the circulation conveyance path so as to be perpendicular to the forward path and the return path. .
[0003]
[Problems to be solved by the invention]
In the above-described conventional circulation conveyance path, the conveyance path changes to a right angle when the object to be transferred moving on the forward path is transferred from the forward path onto the belt conveyor, so that friction occurs between the forward path and the belt conveyor and the conveyance object. The belt had a problem of meandering, and the transition was not smooth.
[0004]
In view of the above, the present invention intends to provide a short circuit device for a circulating transport path that allows a transported object such as a food container placed and transported on the circulating transport path to be smoothly U-turned during the transport. Is.
[0005]
[Means for Solving the Problems]
In order to solve the above problems, the device of the present invention is configured such that when the guide member (13, 16) is not used , the object to be transported placed and circulated on the circulation conveyance path (1) is transferred to the guide member (13, 16). order to U-turn on the way conveyance when using), a middle of the circular path, intermediate with the turntable (4) is provided in the forward path of the circulation path (1A) and backward (1B), forward A forward guide member (13) that guides the object to be conveyed from the outward path to the turntable is provided on the side, and the object to be conveyed from the turntable to the return path side on the return path side is opposed to the outward guide member. A return-path-side guide member (16) for guiding is provided to be freely installed, and the turntable rotates on substantially the same plane as the forward path and the return path, so that the object to be transported travels along the rotation of the turntable. After changing from (1A) to the turntable (16) , turntable (1 It is configured to transfer to the return route (1B) along the rotation of 6) . Further, in the device of the present invention according to claim 1, the turntable is interlocked with a rotating sprocket that meshes with the roller portion of the crescent chain, and the chain that is in contact with the roller portion of the crescent chain on the opposite side of the sprocket across the crescent chain. A guide is provided. In the present invention, “the turntable rotates on substantially the same plane as the forward path and the backward path” means that the turntable rotates with respect to the forward path and the backward path in the positional relationship shown in FIGS.
[0006]
In the present invention, it is preferable that the top plate surface of the crescent chain is at a position where the forward path side is higher than the upper surface of the turntable and the return path side is lower than the upper surface of the turntable. It can also be inclined so that the forward path side is lower than the top plate surface and the return path side is higher.
Further, in the present invention, a rubber material having a large friction coefficient can be provided on the surface of the turntable, and it is preferable that grooves are provided radially or concentrically on the surface of the turntable.
[0007]
In the present invention having the above-described configuration, a turntable is provided in the middle of the circulating path between the forward path and the return path of the crescent chain, and when the object to be transferred that makes a forward path is U-turned, an outward path guide member is installed in the forward path. At the same time, if the return path side guide member is installed on the return path, the object to be transported is guided by the forward path side guide member and placed on the turntable, and is transported from the turntable to the return path.
[0008]
When the transported object on the turntable is transferred from the return path and when the transferred object is transferred from the turntable to the return path, the path is changed along the rotation of the turntable. Migration is possible.
Also, the turntable interlocked with the rotating sprocket that meshes with the roller portion of the crescent chain uses the power of the crescent chain, and therefore does not require a drive source dedicated to the turntable.
In this case, since the chain guide is provided on the opposite side of the sprocket across the crescent chain, the engagement of the crescent chain and the sprocket is ensured and stable.
[0009]
Also, if the top plate surface of the crescent chain is at a position where the forward path side is higher than the upper surface of the turntable and the return path side is lower than the upper surface of the turntable, it will shift from the high position to the low position. It becomes easy to transfer the transferred object from the forward path to the turntable and from the turntable to the return path.
Further, even if the turntable is inclined so that the forward path side is lower than the top plate surface of the crescent chain and the return path side is higher, the transfer of the transported object is facilitated as before. In this case, the inclination includes both the case where the top plate surface of the crescent chain is higher in the forward path than the return path, and the case where the top plate surface of the crescent chain is the same height in the forward path and the return path.
[0010]
Further, if a rubber material having a large friction coefficient is provided on the surface of the turntable, the conveyed object will not slide on the turntable.
Moreover, even if grooves are provided radially or concentrically on the surface of the turntable, as in the previous case, the object to be conveyed is prevented from slipping on the turntable, and both can be reliably transferred.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
Throughout the drawings, the same reference numerals indicate the same or corresponding parts.
FIG. 1 is a plan view showing an embodiment of the apparatus of the present invention, and FIG. 2 is a sectional view of the same.
[0012]
Thus, reference numeral 1 in the figure denotes a circulation conveyance path installed on a counter or the like of a restaurant or the like and having a plurality of plates 3 mounted on a circulating endless crescent chain 2. In this circulation conveyance path 1, 1A is The forward path, 1B is the return path.
4 is a turntable provided in the middle of the forward transfer path 1 </ b> A and the return path 1 </ b> B in the middle of the circulation conveyance path 1, and the bearing 5 of the turntable 4 is fixed to a fixed plate 6 provided below the turntable 4.
[0013]
A pulley 8 is attached to the shaft 7 of the turntable 4.
A drive motor 9 is attached to the fixed plate 6. A pulley 11 is attached to the shaft 10 of the drive motor 9, and a belt 12 is stretched between the pulley 11 and the pulley 8 on the turntable 4 side, and the turntable 4 is rotated by the drive motor 9.
[0014]
Reference numeral 13 denotes an outward path guide member provided at the rear portion of the turntable 4 between the outward path 1A and the return path 1B in the traveling direction on the outward path 1A side. The outward path side guide member 13 has an arm shape with a rectangular cross section, and its base portion is The upper plate 14 provided behind the turntable 4 is attached to the forward path 1A side by a pivot 15 so as to be horizontally rotatable.
Further, a base portion of a return path guide member 16 having the same structure as the forward path guide member 13 is attached to the forward path 1B side of the upper plate 14 so as to be opposed to the forward path side guide member 13 by a pivot 17 so as to be rotatable in the horizontal direction. Yes.
[0015]
The forward path side guide member 13 and the backward path side guide member 16 are located above the forward turntable 4 between the forward path 1A and the backward path 1B when not in use, but the transported object 18 such as a food container is forwarded. When making a U-turn by moving to the return path side in the middle of 1A, manually rotate the tip of the forward guide member 13 toward the forward path 1A, and above the forward path 1A on the side of the turntable 4 above the forward path 1A. The forward path side 1A is positioned so as to be obliquely blocked.
Further, it is manually rotated to the return path 1B side ahead of the return path side guide member 16, and is positioned so as to obliquely block the return path 1B above the return path 1B on the side of the turntable 4.
[0016]
The turntable 4 rotates in a direction so that the forward path 1A side is along the traveling direction of the forward path 1A and the return path 1B side is along the traveling direction of the backward path 1B.
In the U-turn, the object 18 is transported by being placed on the plate 3 of the outward path 1A and is prevented from advancing by the forward path side guide member 13 in the forward direction. It is guided on the turntable 4 along the rotation.
[0017]
The transported object 18 placed on the turntable 4 is moved by the turntable 4, and is placed on the plate 3 of the return path 1B along the rotation of the turntable 4 by the return path side guide member 16, and is turned back. .
In the figure, 19 is a chain rail.
[0018]
Next, FIG. 3 is a plan view showing an embodiment of the device of the present invention according to claim 2, and FIG. 4 is a sectional view of the same.
This apparatus uses a crescent chain 2 that circulates through a drive source of the turntable 4.
That is, 20 is a sprocket in the figure, and the sprocket 20 meshes with the roller 21 of the crescent chain 2 on the return path 1B side. The bearing 22 of the sprocket 20 is fixed to the fixed plate 6.
[0019]
A pulley 24 is attached to the shaft 23 of the sprocket 20, and a belt 25 is stretched between the pulley 24 and the pulley 8 on the turntable 4 side, and the turntable 4 is rotated by the sprocket 20.
A narrow plate-shaped chain guide 26 is provided on the opposite side of the sprocket 20 with the crescent chain 2 on the return path side 1B interposed therebetween. The chain guide 26 is connected to the crescent chain 2 at a position where the sprocket 20 and the crescent chain 2 are engaged. A central portion bulges out so as to come into contact with the roller 21 of the crescent chain 2, both sides are bent rearward, and are fixed to the side frame 27 with bolts 28.
[0020]
Next, FIG. 5 to FIG. 7 show the height relationship between the turntable and the top plate surface of the outward crescent chain and the top plate surface of the reverse crescent chain. FIG. 5 shows the plate of the crescent chain 2. Three surfaces are located on the forward path 1A side higher than the upper surface of the turntable 4, and the return path 1B side is located lower than the upper surface of the turntable 4.
As a result, the transported object 18 moves from a high position to a low position, so that it is easy to transfer from the forward path 1A to the turntable 4 and from the turntable 4 to the return path 1B.
[0021]
Further, in FIG. 6, the turntable 4 is inclined so that the forward path 1A side is lower than the top plate 3 surface of the crescent chain 2 and the return path 1B side is higher, so that the transfer object 18 can be easily transferred as before.
In this case, when the forward path 1A is at a high position and the return path 1B is at a low position as shown in FIG. 6, the forward path 1A side and the return path 1B side are inclined at the same height as shown in FIG. At times, it is inclined from the return path 1B side to the forward path 1A side.
In addition to this, by making the outer peripheral speed of the turntable faster than the speed of the crescent chain 2, the transfer from the forward path 1A to the turntable 4 and from the turntable 4 to the return path 1B can be made smooth.
In the embodiment, the ratio between the traveling speed of the crescent chain 2 and the outer peripheral speed of the turntable 4 is approximately 1 to 1.7.
[0022]
Next, FIGS. 8 to 10 show a turntable. In the figure, reference numeral 30 denotes a rubber material having a large friction coefficient adhered to the upper surface of the turntable 4, and silicon rubber, urethane rubber or the like is used.
Further, by providing a radial groove 31 on the surface of the turntable 4 as shown in FIG. 9 or by providing a concentric groove 31 as shown in FIG. 10, the conveyed object 18 slides on the turntable 4. Can be prevented.
[0023]
【The invention's effect】
According to the present invention, when the transfer object is transferred from the forward path onto the turntable and when the transfer object is transferred from the turntable to the return path, the path is changed along with the rotation of the turntable. Therefore, the maintenance such as the meandering adjustment of the belt is not required unlike the conventional belt conveyor, and the maintenance is easy.
The invention of claim 2 also has an economic effect of reducing the manufacturing cost and the operating cost because the power of the turntable is a crescent chain, so that the electric motor and electric wiring for the turntable are unnecessary.
[Brief description of the drawings]
FIG. 1 is a plan view showing an embodiment of a device of the present invention according to claim 1;
FIG. 2 is a sectional view showing an embodiment of the device of the present invention according to claim 1;
FIG. 3 is a plan view showing an embodiment of the device of the present invention according to claim 2;
FIG. 4 is a sectional view showing an embodiment of the device of the present invention according to claim 2;
FIG. 5 is a partial view showing an embodiment of the device of the present invention.
FIG. 6 is a partial view showing an embodiment of the device of the present invention.
FIG. 7 is a partial view showing an embodiment of the device of the present invention.
FIG. 8 is a sectional view of a turntable of the device of the present invention.
FIG. 9 is a plan view of a turntable of the device of the present invention.
FIG. 10 is a plan view of a turntable of the device of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Circulation conveyance path 1A Outbound path 1B Return path 2 Crescent chain 3 Plate 4 Turntable 9 Drive motor 13 Outbound side guide member 16 Return path side guide member 18 Conveyed object 20 Sprocket 21 Roller 26 Chain guide 30 Rubber material 31 Groove

Claims (1)

When the guide member (13, 16) is not used , the object to be transported placed on the circulation conveyance path (1) and circulated is to be U-turned during the conveyance when the guide member (13, 16) is used. A turntable (4) is provided in the middle of the circulation conveyance path and in the middle of the forward path (1A) and the return path (1B) of the circulation conveyance path ,
An outward guide member (13) that guides the object to be conveyed from the outward path to the turntable on the outward path side is provided freely,
A return path guide member (16) for guiding the object to be conveyed from the turntable to the return path side on the return path side facing the forward path side guide member is provided so as to be freely installed.
The turntable rotates on substantially the same plane as the forward path and the backward path, so that the object to be conveyed is transferred from the forward path (1A) to the turntable (16) along the rotation of the turntable. A short circuit device for a circulating conveyance path, which is configured to transfer to the return path (1B) along the rotation of (16) .

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