JP2011019869A - Rice cooker conveyor, rice cooking apparatus provided therewith and method for conveying rice cooker - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a rice cooker conveyor not generating displacement of a rice cooker in conveying, a rice cooking apparatus provided therewith and a method for conveying the rice cooker. <P>SOLUTION: The rice cooker conveyor 1 includes at least one pair of gripping claws 11, a drive device for making the claws 11 approach to or be apart from each other and a shift device for vertically/horizontally shifting the claws 11 as a pair, wherein the front end of each claw 11 facing each other includes a recess 11w in which at least a part of the cooker P, the object to be conveyed, fits. The rice cooking apparatus provided with the conveyor 1 and the conveying method are provided as well. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a rice cooker transport device, a rice cooker equipped with the same, and a method for transporting the rice cooker, and more specifically, a rice cooker transport device capable of transporting the rice cooker without misalignment, and the rice cooker transport device. The present invention relates to a rice cooking device and a method for transporting a rice cooking pot that enables the rice cooking pot to be transported without being displaced.

  Conventionally, it has been equipped with a plurality of rice cookers cooked in one pot, and the rice cooker transporting the rice cooker containing uncooked rice and water by the rice cooker transport device, set it in each one pot rice cooker, Many rice cooking apparatuses which cook rice every time are proposed (for example, refer to patent documents 1 to 4). However, according to the experience of the present inventors, in the rice cooker equipped with these conventional one pot rice cookers, the rice cooker is being conveyed to the rice cooker by the rice cooker transport device. When the rice cooker is lowered and set in the rice cooker, the bottom of the rice cooker comes in contact with the rice cooker or the spacer installed on the top of the rice cooker, and the rice cooker or spacer is deformed or damaged. There was something to do. In addition, when the positional deviation is large, the rice cooker may come into contact with the side wall portion of the rice cooker, and it may not even be set in the rice cooker.

  Therefore, when the present inventors repeatedly investigated the cause of the misalignment of the rice cooker, it was found that the misalignment of the rice cooker occurred during the conveyance was due to the structure of the conventional rice cooker transport device. did. That is, in the conventional rice cooker transport apparatus, as shown in Patent Documents 1 and 2, for example, the rice cooker is simply inserted by inserting a pair of gripping claws below the buttocks of the rice cooker and raising it as it is. The pot is lifted and moved, or as can be seen in Patent Document 3, at most, a U-shaped fork is inserted from one side to the bottom of the bowl of the rice cooker and lifted and moved. No restrictions are imposed on the movement of the rice cooker during conveyance on the gripping claw or on the fork. For this reason, during the conveyance of the rice cooker, it was found that the rice cooker slips on the gripping claws or on the fork by its own inertia when the conveyance is started and stopped, and a positional deviation occurs.

  In particular, in recent years, the efficiency and speedup of rice cookers have been demanded, and the rice cooker transport speed by the rice cooker transport device tends to gradually increase. As a result, the speed difference between stop and transfer is large, and the distance that the rice cooker slides on the gripping claws or forks due to its own inertia at the start and stop of the transfer by the rice cooker transfer device is increased. It is considered that the size cannot be ignored to the extent that it cannot be set. Such knowledge is a knowledge that the present inventors have found for the first time based on many years of knowledge and experience.

  Moreover, in the conventional one pot rice cooker, as seen in Patent Document 4, for example, when the rice cooker is set at the rice cooking position, a temperature sensor that comes into contact with the bottom center of the rice cooker is provided inside the rice cooker. The heating means of each rice cooker is controlled based on the signal from this temperature sensor, but if a misalignment occurs in the rice cooker during transportation, it will allow it to be set in the rice cooker. Even if it is a thing, a rice cooker will be set to a rice cooker with the position shifted. As a result, the contact position of the temperature sensor is shifted from the bottom center of the rice cooker, making it impossible to measure the temperature accurately reflecting the cooking status inside the rice cooker, resulting in inconvenience that rice cooking abnormalities such as insufficient rice cooking and excessive rice cooking occur. is there. Such inconvenience is, for example, even if the temperature sensor is provided at a position facing a vent hole provided in the lid of the rice cooker and measures the temperature of the steam ejected from the vent hole. If a deviation occurs in the positional relationship with the vent hole, it is a disadvantage that may occur in the same manner.

JP 2001-128850 A JP 2002-104646 A JP 2005-052432 A Japanese Patent Laying-Open No. 2005-069641

  The present invention was made to eliminate the disadvantages of the conventional rice cooker transport apparatus as described above, and includes a rice cooker transport apparatus that does not cause misalignment of the rice cooker during transport. It is an object of the present invention to provide a rice cooker and a method for conveying a rice cooker.

  As a result of further research to solve the above problems, the present inventors have found that in a rice cooker transport apparatus using at least a pair of gripping claws, a pair of gripping claws are provided with objects to be transported at respective tip portions facing each other. By providing a recess into which at least a part of a rice cooker fits, a part of the rice cooker fits into the recess during transportation and its movement is restricted, so that there is no misalignment of the rice cooker during transportation. As a result, the present invention has been completed.

  That is, the present invention solves the above-described problem by moving at least a pair of gripping claws, a drive device for moving the pair of gripping claws closer to or away from each other, and moving the pair of gripping claws in a vertical direction and a horizontal direction as a pair. And a pair of gripping claws having a recess into which at least a part of the rice cooker that is the object to be conveyed is fitted at each of the tip portions facing each other, and so on. It solves by providing the rice cooker provided with the rice cooker conveyance apparatus.

  In addition, the present invention provides a pair of gripping claws having a recess into which at least a part of a rice cooker that is an object to be conveyed is fitted at each tip portion facing each other. The problem is solved by providing a rice cooker transport method in which the pair of gripping claws are raised and the rice cooker is lifted and moved in a state where the rice cooker is fitted in each of the recesses. It is.

  The shape of the recess into which at least a part of the rice cooker is fitted can be an appropriate shape according to the shape and structure of the target rice cooker. For example, when the horizontal cross-sectional shape of the portion that fits into the recess of the rice cooker is square, the shape of the recess is a trapezoidal shape with a taper that has a taper that increases in distance toward the tip of the gripping claw Part of the rice cooker is guided by the taper part and enters the back of the trapezoidal recess, that is, the base of the gripping claw, and its tip fits in the deepest part of the trapezoidal recess. The movement is restricted.

  Further, when the horizontal cross-sectional shape of the portion that fits into the concave portion of the rice cooker is an arc shape, the concave portion may be an arc-shaped concave portion, and a part of the rice cooker is guided by the arc-shaped concave portion. However, it gets stuck in the deepest part and the movement of the rice cooker is restricted.

  In a preferred embodiment of the present invention, the recess into which at least a part of the rice cooker that is the object to be conveyed is fitted is a bottomed recess. When the concave portion has a bottom, by raising the gripping claws after a portion of the rice cooker gets stuck in the concave portion, the bottom surface of a part of the rice cooker in which the bottom portion of the concave portion is stuck in the concave portion The rice cooker can be lifted and transported.

  The rice cooker transport device of the present invention is typically a rice cooker transport cart provided with a pair of gripping claws, a driving device thereof, a lifting device, and traveling means. The rice cooker transport cart travels in the upper or side space of a plurality of one-pot rice cookers arranged in a row and moves horizontally with a pair of gripping claws as a pair, and at an appropriate position. At that position, the pair of gripping claws are moved up and down to move in the vertical direction with the pair of gripping claws as a pair, and the pair of gripping claws are moved closer to or away from each other to grip and transfer the rice cooker. Further, the rice cooker transport device of the present invention may be a rice cooker transport robot, extend or contract an arm provided with a pair of gripping claws, or rotate it in a vertical plane and a horizontal plane at an appropriate joint part, The pair of gripping claws are moved as a pair in the vertical direction and the horizontal direction, and the pair of gripping claws are moved closer to or away from each other at an appropriate position to grip and convey the rice cooker. When the rice cooker transport robot itself has traveling means, it can travel linearly or in a curved line and move a pair of gripping claws as a pair.

  According to the rice cooker transport device, the rice cooker, and the rice cooker transport method of the present invention, the rice cooker can be transported without causing a positional shift, so that the regular regular rice cooker can always be used. The rice cooker can be set at the position, and the bottom of the rice cooker is in contact with the side wall and spacer of the rice cooker at the time of setting, and there is no risk of deforming or breaking the rice cooker or spacer. Since the position of the rice cooker with respect to the temperature sensor provided in is always a predetermined regular position, accurate temperature measurement is possible, and the advantage of rice cooking abnormality such as insufficient cooking or excessive cooking is obtained. In addition, according to the rice cooker transport device, the rice cooker, and the rice cooker transport method of the present invention, the misalignment of the rice cooker does not occur during transport, so it is possible to transport the rice cooker at high speed, There is an advantage that the efficiency and speedup of the rice cooker can be realized.

It is a front view which shows an example of the rice cooker provided with the rice cooker conveyance apparatus of this invention. It is a left view of a rice cooker conveyance apparatus. FIG. 3 is a cross-sectional plan view taken along line X-X ′ of FIG. 2. It is a top view which shows the state which has a pair of holding nail | claw in the release position which mutually separated. It is a top view which shows the state which exists in the holding position which a pair of holding nail | claw approached mutually. It is a fragmentary sectional view which shows the state which set the rice cooker to the one pot rice cooker using the rice cooker conveyance apparatus of this invention. It is a top view which shows the state which has a pair of holding | grip nail | claw of another example in the releasing position spaced apart from each other. FIG. 8 is a Y-Y ′ sectional view of FIG. 7. It is a top view which shows the state which has a pair of holding nail | claw of another example in the holding position which mutually approached. It is a fragmentary sectional view which shows the state which set the rice cooker to the one pot rice cooker using the rice cooker conveyance apparatus of this invention. Furthermore, it is a top view which shows the state which has a pair of holding | grip nail | claw of another example in the release position which mutually separated. Furthermore, it is a top view which shows the state which exists in the holding position which a pair of holding nail | claw of another example approached mutually. It is a figure which shows the other example of the rice cooker conveyance apparatus of this invention.

  Hereinafter, the present invention will be described in detail with reference to the drawings, but the present invention is not limited to the illustrated one.

FIG. 1 is a front view showing an example of a rice cooker equipped with a rice cooker transport device of the present invention. In FIG. 1, 1 is the rice cooker conveyance apparatus of this invention, 2 is the rice cooker provided with the rice cooker conveyance apparatus 1 of this invention. Reference numerals 3a, 3b, 3c, and 3d are one-pot rice cookers arranged in a row constituting the rice-cooking apparatus 2, 4 is a rice-cooker receiving part, 5 is a rice-cooker carrying-out part, and P is a rice-cooker. Rice pot P in this example, the a horizontal cross-sectional shape is circular, and includes an upper flange portion P _U and the lower flange portion P _L thereon. In FIG. 1, only four cooker rice cookers 3 a to 3 d are shown, but it goes without saying that there may be five or more cooker rice cookers constituting the rice cooker 2.

  In this example, the rice cooker transport device 1 includes a cart body 6, traveling wheels 7 and 7 that are rotatably attached to the cart body 6, and an electric motor 8 that rotationally drives the traveling wheels 7 and 7. It is configured as a trolley. 9 is a traveling path of the traveling wheels 7, 7. The rice cooker transport device 1 rotates the traveling wheels 7, 7 forward or backward by the electric motor 8, and moves on the traveling path 9 in the left-right direction indicated by arrows in the figure. Moving.

  Reference numeral 10 denotes a gripping device. The gripping device 10 includes a pair of gripping claws 11 (shown in the figure) that move between a driving device (not shown) and a gripping position that is driven close to each other and a release position that is spaced apart from each other. Only the gripping claw on the front side is shown). Reference numeral 12 denotes a cylinder. A gripping device 10 is attached to the tip of the piston rod of the cylinder 12. When the cylinder 12 moves the piston rod between the protruding position and the retracted position, the gripping device 10 is accordingly moved. Moves up and down with the pair of gripping claws 11 in the vertical direction indicated by arrows in the figure. A cable bearer 13 accommodates a signal line, a power line, a pipeline for supplying a working fluid to the cylinder 12 and the like. 14 is a power source, 15 is a working fluid source, and 16 is a control device.

  The rice cooker transport device 1 of the present invention is configured as described above, and is controlled by the control device 16 so that a pair of grips are achieved by traveling by the traveling wheels 7 and 7 and by lifting and lowering the gripping device 10 by the cylinder 12. The claws 11 are moved as a pair in the vertical and horizontal directions, and the pair of gripping claws 11 are moved between a gripping position approaching each other and a release position spaced apart from each other by a driving device (not shown). Thereby, the rice cooker conveyance apparatus 1 grasps the rice cooker P containing the uncooked rice and the water to be conveyed in the rice cooker receiving unit 4, and any one of the one rice cookers 3a to 3d is free. The rice cooker P that has been cooked is taken out from the operation of setting the rice cooker P to the one pot rice cooker and the one pot rice cooker 3a to 3d, The operation | movement conveyed to the rice cooker carrying-out part 5 is performed.

  FIG. 2 is an enlarged left side view showing only the rice cooker conveying apparatus 1, and the same members as those in FIG. 1 are denoted by the same reference numerals. In FIG. 2, 7a is a rotating shaft of the traveling wheels 7, 7, 7b and 7b are bearings of the rotating shaft 7a, 7c is a driven pulley attached to the rotating shaft 7a, and 8a is a driving pulley attached to the output shaft of the electric motor 8. Thus, the rotational force of the electric motor 8 is transmitted from the driving pulley 8a to the driven pulley 7c via a timing belt stretched between them, and the traveling wheels 7 and 7 rotate. In addition, since the rotary encoder which is not shown in figure is attached to the rice cooker conveyance apparatus 1, and outputs the signal corresponding to the position of the rice cooker conveyance apparatus 1 on the traveling path 9, the control apparatus 16 is based on the signal. By controlling the traveling of the rice cooker transport apparatus 1, the rice cooker transport apparatus 1 can be traveled to an appropriate position and stopped at that position.

  10a is a top plate of the gripping device 10, and the piston rod of the cylinder 12 penetrates through the cart body 6, and its tip is coupled to the top plate 10a. Therefore, when the cylinder 12 is operated and the piston rod is protruded from the cylinder or pulled into the cylinder, the gripping device 10 in which the top plate 10a is coupled to the tip of the piston rod is lowered or raised. Incidentally, FIG. 2 shows a state where the piston rod of the cylinder 12 is most retracted into the cylinder. Reference numerals 20 and 20 denote guide bars for the gripping device 10 to guide the raising and lowering.

  10b is a bottom plate of the gripping device 10, and cylinders 17a and 17b and electromagnetic valves 18a and 18b for controlling the supply of the working fluid to the cylinders 17a and 17b are attached to the bottom plate 10b. Further, supports 11a and 11a are respectively attached to the tips of the piston rods of the cylinders 17a and 17b, and the supports 11a and 11a and the pair of gripping claws 11 and 11 are connected by the connecting bodies 11b and 11b. ing. Therefore, when the cylinders 17a and 17b move the piston rod between the protruding position and the retracted position, the gripping claws 11 and 11 move between the gripping position close to each other and the release position spaced apart from each other. become. Therefore, the cylinders 17a and 17b are drive devices that cause the pair of gripping claws 11 and 11 to approach or separate from each other. Reference numerals 19 and 19 denote guide bars for guiding the movement of the supports 11a and 11a.

  3 is a cross-sectional plan view taken along the line X-X ′ of FIG. 2. As shown in FIG. 3, the tips of the piston rods 21a and 21b of the cylinders 17a and 17b are connected to the supports 11a and 11a, respectively. As a result, when the cylinders 17a and 17b project or retract the piston rod, the grip claws 11 and 11 move between a grip position close to each other and a release position spaced apart from each other.

Next, operation | movement of a pair of holding claws 11 and 11 in the rice cooker conveyance apparatus 1 of this invention is demonstrated using FIG. 4, FIG. First, FIG. 4 shows a state in which the pair of gripping claws 11 and 11 are in a release position separated from each other. As shown in the figure, the pair of gripping claws 11 and 11 have arcuate recesses 11w and 11w at respective tip portions facing each other. The curvatures of the arc-shaped recesses 11w and 11w are set to be approximately the same as the curvature of the side wall of the rice cooker P that is the object to be conveyed. In this state, the rice cooker transport device 1 operates the cylinder 12 to lower the gripping device 10 so that the upper surface of the pair of gripping claws 11, 11 attached to the gripping device 10 is the upper bowl of the rice cooker P. becomes lower than the lower surface of the parts P _U, a lower surface is lowered to a position where the above the upper surface of the lower flange portion P _L of the rice pot P.

  When the pair of gripping claws 11 and 11 are lowered to the above position, the rice cooker transport device 1 operates the cylinders 17a and 17b, which are driving devices, so that the pair of gripping claws 11 and 11 are moved as shown in FIG. , Move to the gripping positions close to each other. Since the curvatures of the recesses 11w and 11w are set to be substantially the same as the curvature of the side wall of the rice cooker P that is the object to be conveyed, a part of the side wall protruding in an arc shape of the rice cooker P is shown in FIG. As shown, the pair of gripping claws 11 and 11 are fitted into the recesses 11w and 11w.

  In the gripping position, the tips of the recesses 11w and 11w of the pair of gripping claws 11 and 11 may be in contact with the side wall of the rice cooker P, but when the tips of the recesses 11w and 11w are in contact with the side wall of the rice cooker P, Since the side wall of the rice cooker P is damaged or noise is generated, the gripping position is preferably set to a position where a slight gap is left between the tip of the recesses 11w and 11w and the side wall of the rice cooker P. . The size of the gap depends on the size of the rice cooker P and the one-pot rice cookers 3a to 3d, but if it is too large, the effect of restricting the movement of the rice cooker P during transportation is not sufficient. It is good to set it as 10 mm or less, Preferably it is 7 mm or less, More preferably, it is 5 mm or less. The gripping position can be easily changed and adjusted by adjusting the strokes of the cylinders 17a and 17b or changing the mounting positions of the cylinders 17a and 17b on the bottom plate 10b.

When the pair of gripping claws 11 and 11 and the rice cooker P are in the state shown in FIG. 5, the rice cooker transport device 1 operates the cylinder 12 to raise the pair of gripping claws 11 and 11. Rising in the middle, the upper surface of the pair of gripping claws 11, 11 contact with the lower surface of the upper flange portion P _U of the cooking pot P, cooking pot P is lifted, moved in the vertical direction, further cooking pot feeder 1 is traveling When traveling on the road 9, it moves in the horizontal direction and is transported. At this time, as shown in FIG. 5, a part of the side wall protruding in the arc shape of the rice cooker P is stuck in the recesses 11w and 11w, so that the direction indicated by α in the figure is of course also indicated by β. The amount of movement of the rice cooker P is restricted to the size of the gap left between the tips of the recesses 11w and 11w and the side wall of the rice cooker P at most. Therefore, there is no misalignment that causes some trouble when the rice cooker 3a to 3d is set in the rice cooker P during conveyance.

  FIG. 6: is a fragmentary sectional view which shows the state which set the rice cooker P to the 1-pot rice cooker 3d using the rice cooker conveyance apparatus 1, for example. As shown in the figure, according to the rice cooker transport device 1 of the present invention, the rice cooker P is not in contact with the spacers 22 and 22 installed on the upper surface of the side wall of the one cooker 3d. It is set accurately at the regular regular rice cooking position, and the temperature sensor 23 comes into contact with the center of the bottom surface of the rice cooking pot P so that accurate temperature measurement reflecting the rice cooking state inside the rice cooking pot P is possible.

FIG. 7 is a diagram showing another example of the pair of gripping claws 11 and 11, and the position where the pair of gripping claws 11 and 11 can grip the rice cooker P as a pair by the rice cooker transport apparatus of the present invention (not shown). The state moved to is shown. As shown, rice pot P in this embodiment is rectangular, the short lower flange portion P _L is provided on the entire circumference of the cooking pot P, the upper flange portion P _U is facing the cooking pot P It is partially provided only at the center of the side. In response to the partial upper flange portion P _U, the pair of gripping claws 11 and 11, a tapered portion 11s extending spacing brought toward its tip, trapezoidal recesses flared with a 11s 11 w 11w are provided. Recess 11w, the length of the trapezoidal short sides of 11w is approximately the same set as the length in the direction along the short sides of the cooking pot P partial upper flange portion P _U, partial upper flange part _{P U} are tapered portion 11s, it is guided to the 11s recess 11 w, will get stuck in the 11 w. The grip claws 11 and 11 of this example have bottoms 11z and 11z at the concave portions 11w and 11w, and are bottomed. Incidentally, P _C is the lid of the cooking pot P, P _H is the vents for steam discharge provided in the lid P _C.

8 is a cross-sectional view taken along line YY ′ of FIG. As shown in FIG. 8, a pair of gripping claws 11 and 11, the recess 11 w, 11 w is located at a height which can accept a partial upper flange portion _{P U} of the cooking pot P, bottom 11z, 11z, the upper in height between the flange portion P _U and the lower flange portion P _L. Moving to a gripping position close to each other a pair of gripping claws 11, 11 in this state, a partial upper flange portion P _U of the cooking pot P would recess 11 w, get stuck in 11 w. The bottom 11z of gripping claws 11, 11, 11z will enter between the upper flange portion _{P U} and the lower flange portion _{P L.}

FIG. 9 shows a state in which the pair of gripping claws 11 and 11 have been moved from the state shown in FIG. As shown in FIG. 9, a partial upper flange portion _{P U} of the cooking pot P is tapered portions 11s, while being guided by the 11s, the recess 11w of the pair of gripping claws 11, 11, and fitted into 11w, rice pot P movement, even in any of the figures in the horizontal direction and the vertical direction, the recess 11 w, is regulated in a range of the gap between the tip portion and the upper flange portion P _U of 11 w. Also in the gripping claws 11, 11 of the present embodiment, the gripping position, the recess 11w, in a position to leave a slight gap between the tip portion of the trapezoidal short side and the distal end portion of the upper flange portion P _U of 11w The size of the gap is preferably set, and the size of the gap depends on the size of the rice cooker P or the one-pot rice cooker in which the rice cooker P is set, but is usually 10 mm or less as in the above example. The thickness is preferably 7 mm or less, more preferably 5 mm or less.

Further, in the state shown in FIG. 9, the recess 11 w, 11 w of the bottom 11z, 11z, so than the upper flange portion _{P U} is below, the pair of gripping claws 11, 11 is increased in this state, the bottom 11z, 11z top partial upper flange portion P _U bottom surface abuts in, rice pot P is lifted, moved in the vertical direction, it is moved in the horizontal direction by a not further shown cooking kettle conveying device, to be carried . At this time, as shown in FIG. 9, a partial upper flange portion P _U recess 11w of rice pot P, because it fits in 11w, the amount of movement of the cooking pot P in the vertical direction in the left-right direction in FIG. 9 Are also regulated. Therefore, there is no misalignment that causes any trouble when the rice cooker P is set in the one rice cooker during conveyance.

FIG. 10 shows a state in which the rice cooker P is set in the one cooker 3z using the rice cooker transport device of the present invention having the pair of gripping claws 11 and 11 as shown in FIGS. It is a fragmentary sectional view. As shown in the figure, according to the rice cooker transport apparatus of the present invention provided with the gripping claws 11 and 11 as described above, the rice cooker P is the same as the spacers 22 and 22 installed on the upper surface of the side wall of the one cooker 3z. Without touching, it is accurately set at the regular rice cooking position in the center of the one-pot rice cooker 3z. As a result, no shift in the positional relationship between the vent hole P _H provided in the lid P _C of the temperature sensor 23 and the cooking pot P, temperature sensor 23, precisely the temperature of the steam ejected from the vent hole P _H It is possible to measure and guess the rice cooking state inside the rice cooker P.

FIGS. 11 and 12 are plan views showing still other examples of the pair of gripping claws 11 and 11. As shown in FIG. 11, rice pot P in this embodiment is rectangular, both of the lower flange portion P _L and an upper flange portion P _U is provided over the entire circumference of the cooking pot P. A pair of holding claws 11 and 11 are provided with recesses 11w and 11w corresponding to the short side portion of the rectangular rice cooker P, and when moved to the holding position as shown in FIG. The side portion on the side is guided by the tapered portions 11 s and 11 s of the pair of gripping claws 11 and 11 and fits into the concave portions 11 w and 11 w. Therefore, the movement of the rice cooker P is restricted, and there is no possibility that the position shift occurs during the conveyance.

  In the gripping claws 11 and 11 of this example, the gripping position is preferably set to a position where a slight gap is left between the tip of the recesses 11w and 11w and the side wall of the rice cooker P. The size depends on the size of the rice cooker P or the one-pot rice cooker in which the rice cooker P is set, but as in the above example, it is usually 10 mm or less, preferably 7 mm or less. More preferably, it is 5 mm or less.

  FIG. 13 is a diagram showing another example of the rice cooker transport device 1 of the present invention. The rice cooker transport device 1 of this example is connected via a base 24, a revolving drum 25 that is rotatable about the vertical axis direction with respect to the base 24, and a joint that is rotatable with respect to the revolving drum 25. The two working arms 26a and 26b, the gripping device 10 attached to the tip of the work arm 26b, and a pair of gripping claws 11 and 11 are provided. The rice cooker transport apparatus 1 of this example rotates the swivel drum 25 and the work arms 26a and 26b to move the gripping device 10 including the pair of gripping claws 11 and 11 in the vertical direction and the horizontal direction. Carry P and set to rice cooker (not shown). Since the pair of gripping claws 11 and 11 are provided with the recesses 11w and 11w as described above, some of the rice cookers to be gripped and transported fit into the recesses 11w and 11w, and the rice cooker is moved. Therefore, there is no risk of misalignment of the rice cooker during transportation.

  In the above example, only one pair of gripping claws 11 and 11 is provided. However, for example, two pairs may be provided in a direction orthogonal to each other, and the rice cooker may be gripped from four directions. Moreover, in the above example, a part of the rice cooker which fits into the recesses 11w and 11w of the pair of gripping claws 11 and 11 was the side wall or the bowl of the rice cooker, but the rice cooker has a handle. In this case, the handle may be fitted into the recesses 11w and 11w.

  As described above, according to the rice cooker transport device, the rice cooker, and the rice cooker transport method of the present invention, there is no possibility of misalignment in the rice cooker during transport, so efficient rice cooking is possible. Since the rice cooker transport speed can be increased by the rice cooker transport device, the speed of the rice cooker can be increased. The present invention is an invention having great applicability in the restaurant industry, the lunch box industry, the canteen industry, etc. that require a large amount of rice.

DESCRIPTION OF SYMBOLS 1 Rice cooker conveying apparatus 2 Rice cooker 3a, 3b ... One pot rice cooker 4 Rice cooker receiving part 5 Rice cooker unloading part 6 Carriage body 7 Traveling wheel 8 Electric motor 9 Traveling path 10 Gripping apparatus 11 Holding claw 11w Recessed part 11s Taper part 11z Bottom 12 Cylinder 13 Cable bear 14 Power source 15 Working fluid source 16 Control device 17a, 17b Cylinder 18a, 18b Solenoid valve 19, 20 Guide bar 21a, 21b Piston rod 22 Spacer 23 Temperature sensor 24 Base 25 Rotating body 26a, 26b Working arm P Rice cooker P _U Upper collar P _L Lower collar

Claims (9)

  A pair of gripping claws; a drive device for moving the pair of gripping claws close to or away from each other; and a moving device for moving the pair of gripping claws in a vertical direction and a horizontal direction as a pair. However, the rice cooker conveyance apparatus which has the recessed part which at least one part of the rice cooker which is a to-be-conveyed object fits in each front-end | tip part which mutually opposes.   The rice cooking according to claim 1, wherein the recessed portion into which at least a part of the rice cooking pot as a transported object is fitted is a tip-shaped trapezoidal recessed portion provided with a tapered portion whose interval increases toward the tip end portion of the gripping claw. A hook conveyor.   The rice cooker transport apparatus according to claim 1, wherein the concave portion into which at least a part of the rice cooker that is the object to be transported is an arc-shaped concave portion.   The rice cooker transport apparatus according to any one of claims 1 to 3, wherein the recessed portion into which at least a part of the rice cooker that is a transported object is fitted is a bottomed recessed portion.   The rice cooker receiving part which accepts the rice cooker of uncooked rice, a plurality of one cooker rice cookers, and the rice cooker conveyed from the rice cooker accepting part to each one cooker rice cooker. Rice cooker having a rice cooker transport device.   The rice cooker according to claim 5, wherein the one-pot rice cooker includes a temperature sensor that comes into contact with the bottom center of the rice cooker when the rice cooker is set at the rice cooking position.   The rice cooker according to claim 5, wherein the one-pot rice cooker includes a temperature sensor at a position facing a vent hole provided in the lid of the rice cooker when the rice cooker is set at the rice cooking position.   A pair of gripping claws having recesses into which at least a part of the rice cooker as the object to be conveyed is fitted at the respective front ends facing each other are brought close to the rice cooker, and the rice cooker is placed in each of the recesses. A method of transporting a rice cooker, wherein the pair of gripping claws are lifted and the rice cooker is lifted and moved in a state where a part of the claws is caught.   The method for conveying a rice cooker according to claim 8, wherein a part of the rice cooker that fits into the recess is a side wall, a buttock, or a handle of the rice cooker.

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