JP2017113239A - Sterilization storage chamber - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sterilization storage chamber which facilitates maintenance such as repair and maintenance of a shutter device for opening and closing between a processing chamber and a cooling device.SOLUTION: There is provided a sterilization storage chamber 1 comprising: a processing chamber 2 for storing pieces of tableware, cooking tools, and small articles; a heating device 3 for sterilizing the pieces of tableware and the like; a cooling device 4 for cooling the pieces of tableware and the like; a control device 5; and a shutter device 6 for opening and closing an opening of a duct connected to the cooling device and being provided on an upper face of the processing chamber. When heating is performed by the heating device, when temperature in the processing chamber reaches set temperature, the shutter device is closed for preventing entry of hot air into the cooling device, then after heat is released from inside of the processing chamber, the cooling device cools the inside of the processing chamber.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a disinfecting storage for heating and cooling dishes after washing.

  Conventionally, facilities for heating and disinfecting and storing dishes after washing are known.

  The disinfecting storage shown in the following document 1 is provided with a processing chamber for storing tableware, a heating device for heating the inside of the processing chamber, and a cooling device for cooling the heated tableware. Is disclosed.

  Further, the cooling device is divided into a primary cooling device that cools air by taking outside air into the processing chamber, and a secondary cooling device that cools by a cooling unit. That is, it is shown that the burden on the secondary cooling device is reduced by performing secondary cooling after lowering the temperature in the processing chamber by primary cooling.

  The primary cooling device and the secondary cooling device are each provided with a damper that is intermittently connected to the processing chamber. During the heating operation, the damper is closed and heated air enters the primary cooling device and the secondary cooling device. In the cooling operation, the damper is opened to allow the cooled air to communicate with the processing chamber.

JP 2003-310527 A

  However, since the cooling device described in Patent Document 1 is provided with a damper inside each duct communicating with the processing chamber, the attachment and detachment becomes complicated when performing maintenance such as repair of the damper. Problems arise.

  The present invention has been made in view of such problems, and provides a sterilization storage that is easy to attach and detach a damper and excellent in maintenance.

  In order to solve the above-described problems, the disinfecting storage according to the present invention has the following means.

  The invention according to claim 1 is a processing chamber for storing tableware, a heating device for circulating hot air in the processing chamber and disinfecting the tableware, and after heating, cool air is circulated in the processing chamber, A disinfecting storage provided with a cooling device for cooling the kind, wherein the upper surface of the processing chamber is provided with a shutter device for opening and closing an opening of a duct connected to the cooling device.

  According to a second aspect of the present invention, in the disinfecting storage according to the first aspect, the shutter device includes a cover body provided with a shutter opening so as to cover the opening of the duct, and the shutter opening. A slide plate that opens and closes and a drive body that slides the slide plate are provided.

  According to a third aspect of the present invention, in the disinfecting storage according to the second aspect, the shutter apertures are formed in a plurality of elongated rectangular slit shapes and are arranged at equal intervals in a direction perpendicular to the longitudinal direction of the slit shapes. It has been established.

  According to a fourth aspect of the present invention, in the disinfecting storage according to the third aspect, the slide plate has a slide aperture having substantially the same shape and the same number as the shutter aperture and the same arrangement as the shutter aperture. And sliding in a direction perpendicular to the longitudinal direction of the slide aperture along a direction perpendicular to the longitudinal direction of the shutter aperture.

  According to a fifth aspect of the present invention, in the sterilization storage according to the second to fourth aspects, the driving body is driven by a shape memory alloy spring.

  In the first aspect of the invention, a processing chamber for storing tableware, a heating device for circulating hot air in the processing chamber, disinfecting the tableware, and after heating, cool air is circulated in the processing chamber, A disinfection storage with a cooling device for cooling dishes, wherein the upper surface of the processing chamber includes a shutter device that opens and closes an opening of a duct connected to the cooling device, so that the shutter device can be easily attached and detached. Thus, maintenance such as repair and maintenance becomes easy.

  According to a second aspect of the present invention, in the disinfecting storage according to the first aspect, the shutter device includes a cover body provided with a shutter opening so as to cover the opening of the duct, and the shutter opening. By providing a slide plate that opens and closes and a drive body that slides the slide plate, the shutter device can be opened and closed by driving the drive body.

  According to a third aspect of the present invention, in the disinfecting storehouse according to the second aspect, the shutter opening is formed of a plurality of elongated rectangular slits, and is equally spaced in a direction perpendicular to the longitudinal direction of the slits. By being arranged in parallel, the shutter aperture can be efficiently opened and closed.

  According to a fourth aspect of the present invention, in the disinfecting storehouse according to the third aspect, the slide plates are substantially the same shape and the same number as the shutter apertures, and the slide apertures are arranged in the same arrangement as the shutter apertures. And sliding the slide plate by a short width of the shutter opening by sliding the direction orthogonal to the longitudinal direction of the slide opening along the direction orthogonal to the longitudinal direction of the shutter opening. The shutter device can be fully opened and closed.

  According to a fifth aspect of the present invention, in the sterilization storage according to the second to fourth aspects, the driving body is driven by a shape memory alloy spring, whereby a low-cost and compact driving body can be provided.

It is a front view of the disinfection storage warehouse which concerns on embodiment of this invention, (a) is an external view, (b) is a principal part block diagram. It is a side view of the disinfection storage which concerns on embodiment of this invention, (a) is an external view, (b) is a principal part block diagram. It is a top view by the side of the processing chamber which concerns on embodiment of this invention. It is a figure at the time of open | release of the shutter apparatus (cold air inlet part side) which concerns on embodiment of this invention, (a) is a top view, (b) is a fragmentary sectional view. It is a figure at the time of closing of the shutter apparatus (cold air inlet part side) which concerns on embodiment of this invention, (a) is a top view, (b) is a fragmentary sectional view.

  Hereinafter, an embodiment of the disinfection storage 1 according to the present invention will be described with reference to the drawings.

  As shown in FIG. 1, the disinfection storage 1 includes a processing chamber 2, a heating device 3, a cooling device 4, a control panel 5, and a shutter device 6.

  The processing chamber 2 is a box-shaped space sealed with a heat insulating material for storing cleaned dishes, cooking utensils, small items, etc., and for loading and unloading tableware to the front of the processing chamber 2. A door 21 is provided. The door 21 may be provided not only on the front surface of the sterilization storage 1 but also on both the front surface and the back surface.

  A cart (not shown) can be accommodated in the processing chamber 2 and can be accommodated in the processing chamber in a state where food cans, cooking utensils, and the like are placed. Moreover, when accommodating tableware, a plurality of shelves may be arranged vertically in the processing chamber, and a basket accommodating the tableware may be placed.

  Moreover, the disinfection storage 1 of this invention WHEREIN: When a to-be-contained object is other than tableware (a cutting board, a kitchen knife, etc.), you may provide the partition member according to the shape of the to-be-contained object in the process chamber 2 separately.

  The heating device 3 includes a heater unit 31, an air duct 32, a sirocco fan 33, and a fan motor 34. The air duct 32 has a hot air inlet part 35 at one end and a hot air outlet part 36 at the other end, and communicates with the processing chamber 2.

  The air duct 32 is installed along the wall of the processing chamber 2 from the ceiling surface 22 in the processing chamber 2 to the lower portion of the side surface 23. The ceiling surface 22 has a hot air inlet 35 and a side surface. A hot air outlet portion 36 is provided at the lower portion of 23. A sirocco fan 33 driven by a fan motor 34 is installed in the air duct 32 located on the ceiling surface 22 so as to face the hot air inlet portion 35, and a heater unit is located in the air duct 32 located on the side surface 23. 31 is installed.

  In addition, a steam discharge cylinder 37 for discharging the steam accumulated in the processing chamber 2 to the outside is connected to the air duct 32 and is provided at the upper portion of the processing chamber 2 so that the inside of the air duct 32 communicates with the outside. ing. The hot air inlet portion 35 is provided with a net-like guard member 38 for preventing foreign matter from entering the heating device 3 so as to cover the hot air inlet portion 35.

  In order to efficiently increase the wind speed of the air sent out by the sirocco fan 33, the upper part of the air duct 32 may have a snail shape that matches the shape of the sirocco fan 33. The heater unit 31 may be either an electric type or a steam type.

  The cooling device 4 is provided above the processing chamber 2, and includes a cooling unit 41 that cools the inside of the processing chamber 2, a cooling fan 42 that sucks and exhausts air, and an intake duct 45 that communicates the cooling unit 41 and the processing chamber 2. And an exhaust duct 46.

  In the cooling device 4, the lower end portion of the intake duct 45 is a cold air inlet portion 43 and the lower end portion of the exhaust duct 46 is a cold air outlet portion 44, which opens to the ceiling surface 22 of the processing chamber 2. Communicate with the inside.

  The air in the processing chamber 2 is cooled by heat exchange in the cooling unit 41 from the cold air inlet 43 through the intake duct 45 by the cooling fan 42, and then discharged into the processing chamber 2 through the exhaust duct 46. The

  In addition, by providing the cool air inlet portion 43 at the lower end portion of the intake duct 45 of the cooling device 4 and the cool air outlet portion 44 at the lower end portion of the exhaust duct 46 in the upper portion of the process chamber 2, It can be efficiently circulated from the upper part to the lower part.

  The control panel 5 is installed in the upper part of the sterilization storage 1 and electrically connects the heating device 3 and the cooling device 4 respectively. The control panel 5 is an operation panel that automatically or manually controls the operation of the heating device 3 and the cooling device 4, and controls the operation start time and operation time for each week, the temperature in the processing chamber 2, and the like.

  The shutter device 6 is disposed so as to cover the entire opening of the cold air inlet portion 43 and the cold air outlet portion 44. The shutter device 6 has a structure in which a cover body 61 having a vent hole and a slide plate 62 for opening and closing the vent hole of the cover body 61 are overlapped, and driven by a driving body 7 engaged with the slide plate 62. The slide plate 62 slides inside the cover body 61.

  The shutter device 6 may have a configuration in which the entire opening of the cold air inlet portion 43 and the cold air outlet portion 44 is covered with one cover body 61 with one slide plate 62, but one drive body 7 makes 1 The slide plate 62 is sized so that the slide plate 62 can be slid, and a plurality of slide plates 62 are installed in one cover body 61, and each slide plate 62 is engaged with the drive body 7 to be slid. May be.

  The cover body 61 has a box shape with an upper opening, and is fixed to the ceiling surface 22 in the processing chamber 2 so that the bottom surface 616 is substantially horizontal and covers the cold air inlet portion 43 and the cold air outlet portion 44 at the upper portion of the processing chamber 2. Has been. A flange surface 614 bent in a Z shape is formed on the outer surface of the cover body 61, and a screw hole 615 formed in the flange surface 614 and the ceiling surface 22 are screwed together.

  The bottom surface 616 of the cover body 61 has a plurality of elongated shutter openings 611 that are ventilation holes, and these shutter openings 611 are arranged in parallel along a direction perpendicular to the longitudinal direction of the rectangular shape. Has been. The plurality of shutter apertures 611 arranged side by side are adjacent to each other at an equal interval, and the interval 613 between the shutter aperture 611 and the length 612 in the short width direction of the shutter aperture 611 is adjacent. It is the same.

  Furthermore, an insertion hole 617 for inserting a shaft 72 of the driving body 7 to be described later is provided on one side surface of the cover body 61 on the side where the plurality of shutter openings 611 are arranged side by side.

  It is desirable that the number of the shutter apertures 611 arranged side by side extend to the openings of the cold air inlet portion 43 and the cold air outlet portion 44.

  Also, it is preferable to provide a plurality of shutter openings 611 in the cover body 61 with a short hole pitch. The shutter opening 611 of the cover body 61 has an elongated rectangular shape, and the slide of the slide plate 62 is in the short width direction of the shutter opening 611.

  The slide plate 62 has approximately the same shape and the same number of slide apertures 621 as the shutter apertures 611, and the slide apertures 621 have the same arrangement as the shutter apertures 611. That is, the slide opening 621 extends in the direction perpendicular to the slide direction of the slide plate 62 and the short width direction length 622 is the same as the short width direction length 612 of the plurality of shutter openings 611 in the slide direction. And the same number is provided at equal intervals.

  Then, the slide plate 62 slides in a direction orthogonal to the longitudinal direction of the slide aperture 621 along a direction orthogonal to the longitudinal direction of the shutter aperture 611.

  A plurality of slide openings 621 in the slide plate 62 are provided at the same hole pitch as the shutter openings 611 in the cover body 61, and the short width direction length 622 is the short width direction length of the shutter opening 611. 612 and the distance 613 between adjacent shutter apertures are the same length, and the length in the long width direction of the shutter aperture 611 and the length in the long width direction of the slide aperture 621 are also the same length.

  In the embodiment described later, the cover body 61 has a quadrangular outer shape, but is not limited thereto, and may be a polygonal shape of pentagon or more, or a circular shape.

  The slide plate 62 has a flat plate shape, is stacked on the bottom surface 616 inside the cover body 61, and is slidably installed along a direction perpendicular to the longitudinal direction of the parallel shutter apertures 611. The slide plate 62 is provided with a bent portion 623 in which a part of one side of the cover body 61 is bent upward, and an insertion hole 624 through which a shaft 72 described later can be inserted.

  The bottom surface 616 of the cover body 61 and the slide plate 62 are slidably overlapped. When the slide plate 62 is slid in the slide direction, the shutter opening 611 of the cover body 61 and the slide opening 621 of the slide plate 62 are slid. And the vent hole of the shutter device 6 is fully opened. From this state, the slide plate 62 is slid by the length 612 in the short width direction of the shutter opening 611 so that the air hole of the shutter device 6 is fully closed.

  In the embodiment described later, the slide plate 62 has the same quadrangular shape as the cross section of the cover body 61, but is not limited to this, and may be a polygonal shape of a pentagon or more, or a circular shape.

  The driving body 7 is a member for sliding the slide plate 62, is outside the cover body 61, and is fixed to the ceiling surface 22 inside the processing chamber 2. The drive body 7 includes a frame 71, a shaft 72, a shape memory alloy spring 74, and a bias spring 75.

  The frame 71 is made of a plate-like body in which both ends in the sliding direction of the slide plate 62 are bent in the same direction, and the insertion hole 713 and the insertion hole 714 of the shaft 72 are formed in the bent part 711 and the bent part 712, respectively. Provided.

  The shaft 72 is a metal rod for sliding the slide plate. A partition plate 73 as a spring action point is fixed to the center of the length, and the end portion 721 and the end portion 722 of the shaft 72 are connected to the frame 71. The bent portion 711 and the bent portion 712 respectively penetrate the insertion hole 713 and the insertion hole 714.

  The shape memory alloy spring 74 is a coil spring that changes from a contracted state to an extended state when the temperature exceeds a set temperature, and is interposed between the bent portion 711 on the side far from the slide plate 62 of the frame 71 and the partition plate 73. The shaft 72 is ring-mounted.

  The bias spring 75 is a coil spring that expands and contracts in conjunction with the expansion and contraction of the shape memory alloy spring 74. The bias spring 75 is interposed between the bent portion 712 on the side close to the slide plate 62 of the frame 71 and the partition plate 73. It is in the ring. The partition plate 73 is biased in a direction away from the bent portion 712 of the frame 71.

  On the shaft core of the shaft 72, there are an insertion hole 617 provided on the side surface of the cover body 61 and an insertion hole 624 provided in the bent portion 623 of the slide plate 62. An end portion 722 of the shaft 72 close to the slide plate 62 and the insertion hole 624 of the slide plate 62 are screwed through the insertion hole 617 slidably.

  By such a driving body 7, the slide plate 62 connected to the shaft 72 is slid by the short width of the shutter opening 611 by expansion and contraction of the shape memory alloy spring 74.

  Next, the operation and operation of the embodiment of the disinfecting storage 1 according to the present invention will be described.

  The tableware that has been cleaned is placed on the shelf in the processing chamber 2 as a basket, the door 21 is closed, and the heating operation is started. In the heating operation, a predetermined start time, temperature, operation time, and the like are set on the control panel 5 in advance.

  The air in the processing chamber 2 is sucked into the hot air inlet 35 by the rotation of the sirocco fan 33 and flows through the air duct 32. The sucked air passes through the heater unit 31 and is heated, and is discharged from the hot air outlet portion 36 into the processing chamber 2. The heated air rises in the processing chamber 2 while heating and disinfecting the tableware placed in the processing chamber 2, is sucked into the hot air inlet 35 again, and repeats circulation.

  After starting the heating operation, the inside of the processing chamber 2 is raised to a certain temperature (for example, 90 ° C.) and heated for a certain time (for example, 60 minutes). When the temperature in the processing chamber 2 reaches a predetermined temperature (for example, 60 ° C.), the valve of the steam discharge cylinder 37 is opened, and the steam filled in the processing chamber 2 is discharged, thereby reducing the humidity in the processing chamber 2.

  The operation of the shutter device 6 after the start of the heating operation will be described.

  As shown in FIG. 4, after reaching the predetermined temperature (for example, 60 ° C.) after the heating operation, the shape memory alloy spring 74 maintains the contracted state, and the bias spring 75 is extended by the biasing force. At this time, the shutter opening 611 and the slide opening 621 provided in the cover body 61 and the slide plate 62 overlap with each other, and the processing chamber 2 and the cooling device 4 are in communication with each other.

  When the temperature in the processing chamber 2 exceeds a predetermined temperature (for example, 60 ° C.), the shutter device 6 is closed to prevent the heated air from entering the cooling device 4.

  Specifically, the shape memory alloy spring 74 in the driving body 7 extends to overcome the biasing force of the bias spring 75 and pushes the shaft 72 in one direction (right side in FIG. 4B). The slide plate 62 engaged with the shaft 72 slides in one direction (right side in FIG. 4B) by the length 612 of the shutter opening 611 in the short width direction, and the shutter opening 611 of the cover body 61 is closed. The cold air inlet portion 43 and the cold air outlet portion 44 are closed.

  Thereby, the intrusion of hot air into the intake duct 45 and the exhaust duct 46 can be prevented, and deterioration of the duct and malfunction of the cooling device 4 can be prevented. Further, by providing the shutter device 6 in the processing chamber 2, a temperature change in the processing chamber 2 can be directly sensed by the shape memory alloy spring 74 of the shutter device 6, so that no sensor or control means is required and the equipment cost is reduced. Furthermore, the shutter device 6 can be easily attached and detached, and maintenance such as repair and maintenance becomes easy.

  Further, when the shutter device 6 is installed on the ceiling surface 22 of the processing chamber 2, the bottom surface 616 of the cover body 61 is substantially horizontal, and the slide plate 62 superimposed on the bottom surface 616 is slid in the horizontal direction. The load of the slide plate 62 is received by the bottom surface 616 of the cover body 61, and the load of the slide plate 62 is not applied to the expansion / contraction action of the shape memory alloy spring 74, so the slide of the slide plate 62 is not loaded. Can be made. Furthermore, even if the shape memory alloy spring 74 is small in expansion and contraction, the shutter plate 611 can be reliably closed by sliding the slide plate 62.

  FIG. 4 shows the operation of the shutter device 6 that covers the cold air inlet portion 43, but the same operation is performed in the shutter device 6 that covers the cold air outlet portion 44.

  After the heating operation is finished, the inside of the processing chamber 2 is radiated naturally until the temperature falls to a predetermined temperature (for example, 50 ° C.). By reducing the temperature of the air in the processing chamber 2 by natural heat dissipation and then cooling with the cooling device 4, the burden on the cooling device 4 can be reduced and the power cost can be reduced.

  Specifically, when the temperature in the processing chamber 2 falls below a set temperature (for example, 60 ° C.) due to natural heat dissipation, the shape memory alloy spring 74 contracts and the bias spring 75 extends due to the biasing force, causing the shaft 72 to move in one direction. (Left side in FIG. 5B) is pushed out. The slide plate 62 engaged with the shaft 72 slides in one direction (left side in FIG. 5B) by the length 612 in the short width direction of the shutter opening 611, and again the shutter opening 611 and the slide opening 621. And the processing chamber 2 and the cooling device 4 communicate with each other.

  As described above, a plurality of shutter apertures 611 each having an elongated rectangular shape are juxtaposed in the short width direction of the shutter apertures 611, and the interval 613 between the adjacent shutter apertures 611 is defined in the short width direction of the shutter apertures 611. By making the length 612 the same, and making the slide apertures 621 of the slide plate 62 the same in shape, number and arrangement of the shutter apertures 611, the slide plate 62 due to the expansion and contraction of the shape memory alloy spring 74 is disposed in the shutter apertures 611. The cold air inlet portion 43 and the cold air outlet portion 44 can be effectively opened and closed by sliding for 612 minutes in the short width direction.

  FIG. 5 shows the closed state by the operation of the shutter device 6 that covers the cold air inlet portion 43, but the same operation is performed in the shutter device 6 that covers the cold air outlet portion 44.

  Subsequently, the cooling device 4 is operated to perform a cooling operation. In the cooling operation, a predetermined start time, temperature, operation time and the like are set in advance on the control panel 5.

  The air in the processing chamber 2 cooled by natural heat radiation enters the intake duct 45 by the cooling fan 42, is heat-exchanged by the cooling unit 41, and is discharged from the exhaust duct 46 into the processing chamber 2.

  The cooled air descends to the lower part of the processing chamber 2 while cooling the dishes in the processing chamber 2, convects in the processing chamber 2, is sucked into the intake duct 45 again, and repeats circulation.

  In this way, by cooling the tableware after heat disinfection, it is possible to arrange cold ingredients on the cold tableware.

  In this embodiment, as shown in FIGS. 3 to 5, three slide plates 62 are installed in one cover body 61 as the shutter device 6, and three drive bodies are slid on each of the slide plates 62. 7, the cover body 61, the slide plate 62, and the drive body 7 may be provided one by one.

  Further, the opening / closing mechanism of the shutter device 6 is a sliding mechanism by sliding of the slide plate 62, but is not limited to this. For example, a butterfly mechanism that opens and closes by rotating the valve by using the driving body 7 as a driving body that can be driven to rotate. It is also good.

DESCRIPTION OF SYMBOLS 1 Disinfection storage 2 Processing chamber 21 Door 22 Ceiling surface 23 Side surface 3 Heating device 31 Heater unit 32 Air blow duct 33 Sirocco fan 34 Fan motor 35 Hot air inlet part 36 Hot air outlet part 37 Steam discharge cylinder 38 Guard member 4 Cooling device 41 Cooling unit 42 Cooling fan 43 Cooling air inlet 44 Cooling air outlet 45 Intake duct 46 Exhaust duct 5 Control panel 6 Shutter device 61 Cover body 611 Shutter opening 612 Short width direction 613 Interval between adjacent shutter openings 614 Flange surface 615 Screw hole 616 Bottom surface 617 Insertion hole 62 Slide plate 621 Slide opening 622 Short width direction length 623 Bending portion 624 Insertion hole 7 Driving body 71 Frame 711 Bending portion (the side far from the slide plate)
712 Bent part (side near slide plate)
713 Insertion hole (the side far from the slide plate)
714 Insertion hole (side near slide plate)
72 Shaft 721 end (the side far from the slide plate)
722 end (side closer to slide plate)
73 Partition Plate 74 Shape Memory Alloy Spring 75 Bias Spring

Claims (5)

A processing chamber for storing tableware; a heating device for circulating hot air in the processing chamber to disinfect the tableware; and a cooling device for circulating cold air in the processing chamber after heating to cool the tableware A disinfecting storage,
An upper surface of the processing chamber includes a shutter device that opens and closes an opening of a duct connected to the cooling device.   2. The disinfecting storage according to claim 1, wherein the shutter device includes a cover body provided with a shutter opening so as to cover an opening of the duct, a slide plate that opens and closes the shutter opening, and the slide. A disinfecting storage comprising a drive for sliding a plate.   The disinfection storage according to claim 2, wherein the shutter apertures are formed in a plurality of elongated rectangular slit shapes, and are arranged in parallel at equal intervals in a direction orthogonal to the longitudinal direction of the slit shapes. Disinfection storage.   4. The disinfecting storage according to claim 3, wherein the slide plate has the same shape and the same number as the shutter apertures, and has slide apertures arranged in the same arrangement as the shutter apertures, and the slide apertures. A disinfection storage, wherein a direction perpendicular to the longitudinal direction of the hole is slid along a direction perpendicular to the longitudinal direction of the shutter opening. 5. The sterilization storage according to claim 2, wherein the driving body is driven by a shape memory alloy spring.

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