Cart-type food processing equipment

Abstract

To prevent invasion of washing water from holes for member fastening to an internal space filled with a heat insulation material without using a caulking agent concerning a food processing device including a washing structure.SOLUTION: An inner box 13 constituting a device body 1 includes: an inner bottom wall 44 constituting a bottom surface of a storage 3; and a bottom frame 45 joined with a front edge of the inner bottom wall 44 and constituting an open edge on a lower side of the storage 3. The bottom frame 45 includes: a front frame body 46 on an upper side; and a rear frame body 47 arranged on a lower side of the front frame body 46. Through-holes 66 are formed in the front frame body 46. Fastening tools 68 for fixing a front wall 35 to the bottom frame 45 are inserted to the through-holes 66. An in-frame space 59 for permitting dropping of washing water entered the bottom frame 45 via the through-holes 66 is formed between the front frame body 46 and the rear frame body 47. A drain channel 60 for discharging the washing water entered in the in-frame space 59 to an in-storage space A of the storage 3 is formed between the in-frame space 59 and the in-storage space A.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a cart shelf type food processing apparatus that performs cooling or heating treatment on food on a food tray in a state where a cart loaded with a group of food trays is stored, and more particularly to a food processing apparatus provided with a cleaning structure for cleaning the inside of a storage chamber.

Background Art

[0002] This type of food processing apparatus is known from Patent Document 1 by the present applicant. The rapid cooling chamber (food processing apparatus) of Patent Document 1 includes a vertically long cooling chamber body, a cart that is inserted into and removed from the cooling chamber body, a cooling unit (processing air supply device) that supplies cold air to food stored in the storage chamber of the cooling chamber body, a cleaning structure that feeds cleaning water to the storage chamber, and the like. The cooling chamber body is composed of an outer box, an inner box that is housed at a distance from the outer box, a square frame-shaped decorative frame that joins the edges of these outer boxes and inner boxes, and a heat insulating material that is filled in the internal space surrounded by both boxes.

[0003] The opening on the front surface of the cooling chamber body is partitioned by columnar pillars into a relatively large right opening and a relatively small left opening. Doors are provided on the front surfaces of both openings, and both doors can be opened and closed in a double-leaf manner. The cart is inserted into and removed from the storage chamber through the open right opening. A notch that allows the frame portion to pass when the cart enters is provided at the lower edge of the right opening. This notch is partitioned by front walls disposed on the left and right of the lower edge of the right opening. A sealing packing for preventing the outflow of cold air in the storage chamber is provided on the front surface of the front wall.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] In the rapid cooling cabinet described in Patent Document 1, the pillars and front wall are fixed to the inner surface of the edge of the opening of the storage cabinet, specifically to the front end portion of the upper and lower wall surfaces constituting the inner box, by fasteners such as screws after the completion of the cooling cabinet body. Therefore, it is necessary to form holes for fastening members through which the fasteners are inserted into the wall surface of the inner box. However, when cleaning the storage cabinet, cleaning water is supplied to the storage cabinet from the cleaning structure. If holes are formed in the lower wall surface of the inner box, there is a risk that cleaning water may enter the internal space filled with insulation material through the gap between the holes and the fasteners. If cleaning water enters the internal space, the accumulated cleaning water may deteriorate the insulation material, leading to a decrease in insulation performance. On the other hand, if piping holes are formed in the lower wall of the outer box, there is a risk of water leaking from the piping holes to the floor. The entry of cleaning water into the internal space filled with insulation material can be prevented by sealing the gap between the fastening holes and the fasteners with a sealant during the assembly of the device body to provide waterproofing. However, the application of sealant can be difficult to achieve consistently due to variations in the worker's skill level, and there are concerns that the sealant's deterioration may reduce its waterproofing performance.

[0006] This invention was made to solve the problems of conventional food processing equipment described above, and aims to prevent cleaning water from entering the internal space filled with heat insulation material through fastening holes for components in a food processing equipment equipped with a cleaning structure, without using a caulking agent. [Means for solving the problem]

[0007] The present invention relates to a cart shelf type food processing apparatus that includes a device body 1 equipped with a storage compartment 3 having an opening at the front, a door 22 for opening and closing the opening of the storage compartment 3, and a washing structure 5 for supplying washing water to the storage compartment 3, and performs cooling or heating treatment on food on food trays 31 of carts 2 that are put in and taken out of the device body 1. At the front lower end of the storage compartment 3, a notch 36 is formed to receive a part of the frame portion 29 that supports the tray storage portion 30 when the tray storage portion 30 is housed in the storage compartment 3, and front walls 35, 35 that partition the notch 36 are provided on the left and right sides of the front lower end of the storage compartment 3. The device body 1 consists of a rectangular box-shaped outer box 12 having an opening at the front, a rectangular box-shaped inner box 13 having an opening at the front and housed at a distance inside the outer box 12, a rectangular frame-shaped decorative frame 14 that joins the four periphery edges of both boxes 12, 13, and an insulating material 15 that fills the internal space surrounded by both boxes 12, 13. The inner box 13 consists of an inner bottom wall 44 that forms the bottom surface of the storage compartment 3, and a bottom frame 45 that is joined to the front edge of the inner bottom wall 44 and forms the lower opening edge of the storage compartment 3. The bottom frame 45 consists of an upper front frame body 46 and a back frame body 47 positioned below the front frame body 46. The front frame body 46 has through holes 66 through which fasteners 68 for fixing the front wall 35 to the bottom frame 45 are inserted. Between the front frame body 46 and the back frame body 47, there is a frame cavity 59 that allows cleaning water that has entered the bottom wall 45 through the through holes 66 to fall out. Furthermore, a drainage channel 60 is formed between the frame cavity 59 and the storage compartment A of the storage compartment 3 for discharging the cleaning water that has entered the frame cavity 59 into the storage compartment A.

[0008] The front frame 46 comprises a fastening plate 50 made of horizontally elongated plates with through holes 66 formed therein, and a front back plate 51 connected downward from the rear end of the fastening plate 50. The back frame 47 comprises a connecting plate 53 made of horizontally elongated plates joined to the fastening plate 50, a vertical plate 54 connected downward from the rear end of the connecting plate 53, a water receiving plate 55 connected rearward from the lower end of the vertical plate 54, and a back back plate 56 connected downward from the rear end of the water receiving plate 55. The water receiving plate 55 of the back frame 47 is arranged at a predetermined vertical distance from the fastening plate 50 of the front frame 46, and an internal frame space 59 is formed between the fastening plate 50 and the water receiving plate 55. The drainage channel 60 is formed by the gap E formed between the back back plate 56 and the front back plate 51.

[0009] A drain hole 80 is formed in the front back panel 51, which faces the back back panel 56, and connects the internal space A and the gap E, extending from front to back. [Effects of the Invention]

[0010] As in the present invention, if an internal frame space 59 is formed between the front frame body 46 and the back frame body 47 that constitute the bottom frame 45, even if cleaning water enters the bottom frame 45 through the through hole 66 of the front frame body 46, the cleaning water can be contained in the internal frame space 59, thus preventing the cleaning water from entering the internal space where the heat insulating material 15 is filled. Furthermore, as in the present invention, if a drainage channel 60 is formed between the internal frame space 59 and the internal space A of the storage compartment 3 for discharging the cleaning water that has entered the internal frame space 59 into the internal space A, the cleaning water can be discharged from the internal frame space 59 toward the internal space A, thus preventing the cleaning water from entering the internal space where the heat insulating material 15 is filled. In summary, according to the present invention, in a food processing apparatus equipped with a cleaning structure 5, it is possible to prevent cleaning water from entering the internal space where the heat insulating material 15 is filled from the through hole 66 for fastening members without using a caulking agent.

[0011] If a vertical plate 54 is formed in front of the water receiving plate 55 that forms the internal space 59, the flow of washing water received by the water receiving plate 55 toward the front can be blocked by the vertical plate 54 and directed toward the rear. Furthermore, if the drainage channel 60 is formed in the gap E formed between the back plate 56 and the front plate 51, the complexity of the structure of the drainage channel 60 can be suppressed, thus preventing an increase in the manufacturing cost of the food processing equipment due to the provision of the drainage channel 60.

[0012] If a drain hole 80 is formed in the front back panel 51 facing the back back panel 56, connecting the interior space A and the gap E, then even if the lower end of the drain channel 60 is submerged in the cleaning water accumulated in the interior space A, the cleaning water flowing through the drain channel 60 can be discharged into the interior space A through the drain hole 80. [Brief explanation of the drawing]

[0013] [Figure 1] This is a longitudinal cross-sectional side view of the main part of a cart-type food processing apparatus according to the present invention. [Figure 2] This is a front view of a food processing machine. [Figure 3] This is a longitudinal cross-sectional side view showing the relationship between the food processing equipment and the cart. [Figure 4] This is a disassembled perspective view of the main unit of the device. [Figure 5] This is a front view showing the cutout portion. [Figure 6] This is a longitudinal cross-sectional side view of the main section, showing the shutter in the rear position. [Figure 7] This is a cross-sectional view along line AA in Figure 5. [Figure 8] This is a disassembled perspective view of the inner bottom wall and bottom frame. [Figure 9] This is a longitudinal cross-sectional side view showing the bottom frame joined to the inner bottom wall, and corresponds to the position of line BB in Figure 7. [Modes for carrying out the invention]

[0014] (Embodiment) Figures 1 to 9 show an embodiment in which the cart shelf type food processing apparatus according to the present invention is applied to a rapid cooler (blast chiller). In this embodiment, front, back, left, right, and up and down refer to the intersecting arrows shown in Figures 1 to 3 and the front, back, left, right, and up and down indications written near each arrow. In Figures 2 and 3, the rapid cooler has a vertically elongated cooler body (device body) 1 as its base, and includes carts 2 that are inserted into and removed from the cooler body 1, a cooling unit 4 that supplies cold air to the internal space A of the storage compartment 3 of the cooler body 1, and a cleaning structure 5 that supplies cleaning water to the storage compartment 3. This rapid cooler can perform cooling treatments such as removing excess heat, rapid cooling, or rapid freezing on food mounted on the carts 2 and stored in the storage compartment 3.

[0015] The cooling unit 4 consists of an external unit 4a located outside the main body of the cooling cabinet 1 and an internal unit 4b located on the left side inside the internal space A of the storage cabinet 3. The external unit 4a includes a compressor, a condenser, and a cooling fan for cooling the compressor and condenser, while the internal unit 4b includes an evaporator and a blower fan. The compressor and condenser of the external unit 4a and the evaporator of the internal unit 4b are connected in a loop by refrigerant piping. The air in the internal space A of the storage cabinet 3 is circulated through the internal space A by the blower fan and cooled by heat exchange as it passes through the evaporator.

[0016] In FIG. 2, the cleaning structure 5 includes a sprinkler 6 provided on the top surface of the storage compartment 3 for spraying cleaning water toward the interior space A of the storage compartment 3, a water storage tank 7 disposed below the refrigerator body 1 for storing the cleaning water, a feed pump 8 for pressurizing and feeding the cleaning water in the water storage tank 7 to the sprinkler 6 via a cleaning water supply path, and the like. The sprinkler 6 sprays the cleaning water while rotating about a vertical axis by the ejection reaction force of the cleaning water. A water collecting port 9 is provided on the bottom surface of the storage compartment 3, and the water collecting port 9 and the water storage tank 7 are connected by a pipe. The cleaning water sprayed from the sprinkler 6 flows down from the water collecting port 9 to the water storage tank 7 and is again pressurized and fed to the sprinkler 6 by the feed pump 8. A water supply path and a water supply valve for supplying cleaning water from the outside are connected to the water storage tank 7. Further, the water storage tank 7 includes a drainage path and a drain valve for discharging the cleaning water used for cleaning.

[0017] The refrigerator body 1 is formed in a vertically long shape and is composed of a heat-insulating box body with an opening in the front. As shown in FIGS. 3 and 4, the heat-insulating box body constituting the refrigerator body 1 includes a rectangular box-shaped outer box 12 having an opening on the front side, a rectangular box-shaped inner box 13 having an opening on the front side and accommodated at an interval inside the outer box 12, a rectangular frame-shaped decorative frame 14 joining the peripheral edges of both boxes 12 and 13, and a heat-insulating material 15 filled in the internal space surrounded by both boxes 12 and 13. The decorative frame 14 joins a rectangular frame-shaped outer box end frame 16 formed on the peripheral edge of the opening of the outer box 12 and a rectangular frame-shaped inner box end frame 17 formed on the peripheral edge of the opening of the inner box 13 to integrally form both boxes 12 and 13.

[0018] As shown in FIG. 2, the opening on the front surface of the refrigerator body 1 is divided by a pillar-shaped pillar 21 provided on the opening edge of the storage compartment 3 into a relatively large right opening and a relatively small left opening, and these openings are opened and closed by a door 22. The door 22 is composed of a right door 22a covering the front surface of the right opening and a left door 22b covering the front surface of the left opening, and both doors 22a and 22b can be opened and closed in a double-leaf manner. Each of the doors 22a and 22b is composed of a heat-insulating door in which a heat-insulating material is filled inside a hollow outer body.

[0019] The left door 22b is held in the closed state by a locking structure and can be released by releasing the locking structure. On the other hand, the right door 22a is held in the closed state by the engagement of a latch lever 23 provided at the swinging tip of the door 22a with a latch receiver 24 fixed to the front right edge of the left door 22b. The closed right door 22a can be opened by operating the latch lever 23 to release the engagement between the lever 23 and the latch receiver 24. The cart 2 can be inserted into and removed from the refrigerator main body 1 with the right door 22a open. Also, by opening both doors 22a and 22b, access can be gained to the internal unit 4b that constitutes the cooling unit 4. In FIG. 2, reference numeral 25 indicates an operation panel provided on the front surface of the left door 22b. Various operation buttons such as mode selection buttons and start buttons are arranged on the operation panel 25, and by operating these operation buttons, the aforementioned cooling unit 4 and cleaning structure 5 can be operated.

[0020] In FIG. 3, the cart 2 includes a base portion 28 having a rectangular frame shape in plan view and provided with four casters, a horizontal L-shaped frame portion 29 formed of vertical and horizontal frame portions and fixed to the front portion of the upper surface of the base portion 28, and a tray storage portion 30 fixed to the upper surface of the horizontal frame portion of the frame portion 29. The tray storage portion 30 is formed of multi-stage shelves, and a group of food trays 31 can be placed on each stage of the shelves in a state where they can be inserted and removed back and forth. A closing plate 32 made of a horizontally long metal plate is fixed to the rear surface of the vertical frame portion of the frame portion 29. The left and right ends of the closing plate 32 protrude outward from the frame portion 29, and the upper end of the closing plate 32 protrudes upward from the upper edge of the frame portion 29.

[0021] As shown in Figure 5, a pair of left and right front walls 35-35 are provided at the front lower end of the storage compartment 3, specifically at both corners of the lower opening edge of the right opening of the storage compartment 3. A notch 36 is provided between this pair of front walls 35-35 to accommodate a portion of the frame 29. When the tray storage section 30 of the cart 2 is placed in the storage compartment 3, the horizontal frame of the frame 29 passes through the notch 36 and enters the interior space A of the storage compartment 3. A sealing packing 37 is fixed along the upper front edge of each front wall 35 and the periphery of the notch 36 to prevent the cold air from leaking out of the storage compartment 3. In Figure 5, reference numeral 38 denotes a long guide frame fixed to the lower surface of the cooling compartment body 1 that guides the cart 2 as it is pushed in and moved. By pushing the base section 28 along these guide frames 38, the tray storage section 30 of the cart 2 can be placed in the interior space A of the storage compartment 3 in the correct position. When the tray storage section 30 of cart 2 is placed in the internal space A of storage compartment 3, the base section 28 is placed in the space between the lower surface of the cooling compartment body 1 and the floor.

[0022] As shown in Figures 2 and 3, a rectangular door packing 39 is fixed to the back surface of the right door 22a. This door packing 39 adheres tightly to the sealing packing 37 on the upper periphery of the opening of the storage compartment 3, the right periphery of the opening, the pillar 21, and the upper edge of the front wall 35, sealing most of the right opening of the storage compartment 3 except for the notch 36. A frame housing section 40 is provided on the lower back side of the right door 22a, and a shutter 41 is provided in this frame housing section 40 so as to be displaceable in the front and back directions. When the right door 22a is closed without storing the cart 2, the shutter 41 is displaced backward, and the rear surface of the shutter 41 adheres tightly to the sealing packing 37 on the periphery of the notch 36, thereby sealing the portion of the notch 36 that is not sealed by the door packing 39 (see Figure 6).

[0023] As shown by the dashed line in Figure 6, when the tray storage section 30 is housed in the internal space A of the storage compartment 3, the vertical frame portion of the frame portion 29 of the cart 2 that protrudes from the storage compartment 3 is received inside the frame storage section 40. At this time, the shutter 41 comes into contact with the frame portion 29 and is displaced forward, positioned in the space between the right door 22a and the frame portion 29. When the cart 2 is housed and the right door 22a is closed, the rear surface of the closing plate 32 comes into close contact with the sealing packing 37 on the periphery of the notch 36, thereby sealing the portion of the notch 36 that is not sealed by the door packing 39 with the closing plate 32.

[0024] As shown in Figures 1 and 4, the inner box 13 comprises an inner bottom wall 44 that forms the bottom surface of the storage compartment 3 and a bottom frame 45 that forms the lower opening edge of the storage compartment 3. The inner bottom wall 44 is formed in the shape of a flat rectangular dish, and a water collection port 9 of the washing structure 5 is provided slightly to the left of the center of the inner bottom wall 44 in the front-to-back direction. The bottom frame 45 is provided across the entire width of the inner bottom wall 44 in the left-to-right direction and consists of a front frame body 46 positioned on the upper side and a back frame body 47 positioned below the front frame body 46. The lower end of the pillar 21 and the front wall 35 are fixed to the upper surface of the bottom frame 45.

[0025] As shown in Figures 1 and 8, the front frame 46 comprises a horizontal fastening plate 50 made of horizontally elongated plates, a vertical front back plate 51 connected downward from the rear end of the fastening plate 50, and a vertical weir plate 52 connected upward from the front end of the fastening plate 50. The weir plate 52 dams the cleaning water supplied from the cleaning structure 5 and flowing down onto the bottom frame 45, preventing the cleaning water from flowing out in front of the front edge of the bottom frame 45.

[0026] The back frame 47 consists of horizontally elongated plates and includes a horizontal joining plate 53 joined to the fastening plate 50, a vertical plate 54 connected diagonally downward from the rear end of the joining plate 53, a horizontal water receiving plate 55 connected backward from the lower end of the vertical plate 54, a vertical back plate 56 connected downward from the rear end of the water receiving plate 55, a vertical connecting plate 57 connected downward from the front end of the joining plate 53, and a pair of left and right side plates 58-58 provided at the left and right ends of the back frame 47 and connected to the vertical plate 54 and the water receiving plate 55. The connecting plate 57 constitutes the lower end frame portion of the inner box end frame 17 to which the decorative frame 14 is joined. The upper edge of each side plate 58 and the upper end surface of the joining plate 53 are formed flush.

[0027] As shown in Figure 1, the front frame 46 and the back frame 47 are arranged so that the front surface of the weir plate 52 and the front surface of the connecting plate 57 are flush, and the front back plate 51 is positioned at the rear and the back back plate 56 is positioned at the front, facing each other. In this state, the fastening plate 50 and the joining plate 53 are joined by spot welding or the like, so that the front and back frames 46 and 47 are formed as a single unit. The front surface of the bottom frame 45 is recessed backward by the thickness of the sealing packing 37 in the part corresponding to the right opening of the storage compartment 3 (the part to the right of the pillar 21) compared to the remaining part (see Figure 5).

[0028] The fastening plate 50 of the front frame 46 and the water receiving plate 55 of the back frame 47 are arranged at a predetermined distance from each other, and a frame interior space 59 is formed between these fastening plate 50 and water receiving plate 55 (between the front frame 46 and the back frame 47), allowing the cleaning water that has entered the bottom frame 45 through a through hole 66 (described later) to fall out. The front and rear of the frame interior space 59 are closed off by vertical plates 54 and the front back plate 51, and the left and right sides of the frame interior space 59 are closed off by a pair of side plates 58, 58. The front back plate 51 and the back back plate 56, which are located at the rear end of the frame interior space 59 and are arranged facing each other front and back, are arranged with a gap E formed between them. The upper end of this gap E is in communication with the frame interior space 59, and the lower end is open in the interior space A of the storage compartment 3, facing the upper surface of the inner bottom wall 44 (see Figure 1).

[0029] As shown in Figure 7, each front wall 35 is composed of a bracket 62 fixed to the bottom frame 45 and a cover block 63 provided to cover the bracket 62. The bracket 62 is formed in a partial box shape with lower, front, and left and right bracket walls, and its lower bracket wall 62a is fastened to the front frame 46 and fixed to the bottom frame 45 (see Figure 8). Specifically, as shown in Figure 1, a fastening block 65 having four fastening holes 64 with female threads formed on the inner surface is arranged in the frame space 59, and a through hole 66 is formed in the fastening plate 50 facing each fastening hole 64, which penetrates vertically and communicates with the frame space 59. This through hole 66 constitutes a hole for fastening members. The lower bracket wall 62a has screw holes 67 corresponding to the fastening holes 64, and by screwing fixing screws (fasteners) 68 into the fastening holes 64 from above through the screw holes 67 and through holes 66, the lower bracket wall 62a is fastened to the front frame 46, and the bracket 62 is fixed to the bottom frame 45.

[0030] As shown in Figures 5 and 7, the cover block 63 is formed in the shape of a rectangular box with an opening on the bottom, and has cover walls on the top, front, rear, and left and right sides. Its front cover wall 63a is fastened to the front bracket wall 62b of the bracket 62. In Figure 7, reference numeral 69 indicates a fixing screw for fixing the cover block 63 to the bracket 62. By screwing the fixing screw 69 into the front bracket wall 62b from the front through a screw hole formed in the front cover wall 63a, the front cover wall 63a is fastened to the front bracket wall 62b, and the cover block 63 is fixed to the bracket 62.

[0031] The pillar 21 is connected to a pillar fixing frame 70 fixed to the upper and lower opening edges of the storage compartment 3 and is provided in a columnar manner on the cooling compartment body 1. As shown in Figure 8, the lower pillar fixing frame 70 is formed in a partial box shape with lower, front, and left and right frame walls, and its lower frame wall 70a is fastened to the outer frame body 46. Specifically, the lower frame wall 70a has three screw holes 71, and the fastening plate 50 corresponding to the fixing position of the pillar 21 has a through hole 66 that penetrates vertically and communicates with the frame interior space 59. The pillar fixing frame 70 is fixed to the bottom frame 45 by fastening the lower frame wall 70a to the outer frame body 46 with a fastening body consisting of fixing screws 72 and nuts (not shown) via the screw holes 71 and through holes 66. The upper pillar fixing frame 70 is configured in the same way as the lower pillar fixing frame 70, but with the top and bottom reversed, and is fixed to the front edge of the top wall of the inner box 13. The pillars 21 are fixed to the front side of the pillar fixing frames 70, which are fixed to the upper and lower opening edges of these storage compartments 3, using a fixing structure (see Figure 7).

[0032] In Figure 9, reference numeral 74 indicates a rivet that joins the inner bottom wall 44 and the bottom frame 45, and reference numeral 75 indicates a rivet that fixes the fastening block 65 to the back frame 47. Multiple rivets 74 are provided at equal intervals in the left-right direction, and the joining wall 76, which is extended forward from the upper front end of the inner bottom wall 44, and the rear end of the water receiving plate 55 of the bottom frame 45 are fastened with these rivets 74, thereby integrally joining the inner bottom wall 44 and the bottom frame 45. When the inner bottom wall 44 and the bottom frame 45 are joined, the front surface of the back back plate 56 of the back frame 47 is in close contact with the inner surface of the inner bottom wall 44 (see Figure 1). The fastening block 65 is equipped with joining plates 77 that are extended outward from its left and right ends, and the fastening block 65 is fixed to the bottom frame 45 by fastening the joining plates 77 to the water receiving plate 55 with rivets 75.

[0033] The front frame 46 is fixed using screw fastening, while the back frame 47 is fixed using crimping. This is because the pillars 21 and front wall 35 are assembled after the formation of the cooler body 1, and may be disassembled and removed during maintenance of the rapid cooler. By adopting a fixing method consisting of removable screw fastening, assembly and disassembly can be easily performed. On the other hand, the inner bottom wall 44 and bottom frame 45, and the back frame 47 and fastening block 65 are assembled when the cooler body 1 is formed, and once assembled, they will not be disassembled. Furthermore, with crimping fastening using rivets 74 and 75, gaps are unlikely to form between the rivets 74 and 75 and the through holes through which the rivets 74 and 75 are inserted, resulting in excellent waterproofing of the fastened parts. For these reasons, the back frame 47 employs a fixing method consisting of crimping. In this embodiment, in case a gap is formed in the fastening portion by rivets 74 and 75, the rivet heads on the side of the internal space filled with insulation material 15 are covered with waterproof tape 78 to provide waterproofing.

[0034] When the cleaning structure 5 is driven, the cleaning water supplied to the storage compartment 3 flows over the bottom frame 45, and the cleaning water may enter (fall) into the internal space 59 through the through-hole 66. When cleaning water enters the internal space 59 through the through-hole 66, it is received by the water receiving plate 55, and because the flow of the received cleaning water is blocked by the vertical plate 54, it flows to the rear at the water receiving plate 55 and flows into the drainage channel 60, which is made up of a gap E. The cleaning water that flows into the drainage channel 60 is drained from the lower end of the drainage channel 60 into the internal space A (inner bottom wall 44). Therefore, even if cleaning water enters the internal space 59 through the through-hole 66, it is possible to prevent the cleaning water from entering the internal space filled with insulation material 15.

[0035] As shown in Figures 1 and 8, a drain hole 80 is formed in a through-hole configuration in the front back panel 51, which faces the back back panel 56, connecting the interior space A of the storage compartment 3 with the gap E. The cleaning water flowing into the drain channel 60 is also drained from the drain hole 80 to the inner bottom wall 44. By providing the drain hole 80, even if the flow of cleaning water from the water collection port 9 to the water storage tank 7 is obstructed and the lower end of the drain channel 60 is submerged in the cleaning water stored in the inner bottom wall 44, the cleaning water in the drain channel 60 can be drained from the drain hole 80 to the interior space A. Depending on the specifications of the rapid cooling storage compartment, sealant may be applied to the front corner of the inner bottom wall 44, and the lower end of the drain channel 60 may be blocked by the sealant. Even in this case, by providing the drain hole 80, the cleaning water that has flowed into the drain channel 60 can be drained from the drain hole 80. Furthermore, it is desirable that the water receiving plate 55 be formed to have a slight downward slope toward the rear in order to facilitate the flow guidance of the washing water into the drainage channel 60.

[0036] As described above, in the rapid cooling cabinet of this embodiment, an internal frame space 59 is formed between the front frame body 46 and the back frame body 47 that constitute the bottom frame 45. Therefore, even if cleaning water enters the bottom frame 45 through the through hole 66 of the front frame body 46, the cleaning water can be received in the internal frame space 59, preventing it from entering the internal space where the heat insulating material 15 is filled. Furthermore, as in this embodiment, a drainage channel 60 is formed between the internal frame space 59 and the internal space A of the storage cabinet 3 to discharge the cleaning water that has entered the internal frame space 59 into the internal space A. Therefore, cleaning water can be discharged from the internal frame space 59 towards the internal space A, which also prevents cleaning water from entering the internal space where the heat insulating material 15 is filled. Thus, according to this embodiment, in a food processing apparatus equipped with a cleaning structure 5, it is possible to prevent cleaning water from entering the internal space where the heat insulating material 15 is filled from the through hole 66 for fastening members without using a caulking agent.

[0037] Since a vertical plate 54 is formed on the front side of the water receiving plate 55 that forms the internal space 59, the flow of washing water received by the water receiving plate 55 toward the front is blocked by the vertical plate 54 and directed toward the rear. Furthermore, since the drainage channel 60 is formed in the gap E formed between the back plate 56 and the front plate 51, the structure of the drainage channel 60 is kept from becoming complicated, and the increase in manufacturing costs of the food processing equipment due to the provision of the drainage channel 60 can be suppressed.

[0038] The food processing apparatus according to the present invention is not limited to the rapid cooling chamber described in the embodiments, but can also be applied to heating chambers and the like that perform heat treatment on food. [Explanation of symbols]

[0039] 1. Main unit of the device (cooling cabinet unit) 2 carts 3 Storage room 5. Cleaning structure 12 Outer box 13 Inner box 14. Makeup frame 15. Insulation 22 doors 29 Frame section 30 Tray storage compartment 35 Front wall 36 notches 44 Inner bottom wall 45 Bottom frame 46 Table frame body 47 Back frame 50 Fastening plates 51 Front back plate 53 Joint plate 54 vertical boards 55 Water receiving plate 56 Back panel 59 Space within the frame 60 Drainage Channel 66 Through holes 68 Fasteners (fixing screws) 80 Drain hole A. Interior space of the storage room E gap

Claims

1. A cart shelf type food processing apparatus comprising a main body (1) with a storage compartment (3) having an opening at the front, a door (22) for opening and closing the opening of the storage compartment (3), and a washing structure (5) for supplying washing water to the storage compartment (3), wherein the apparatus performs cooling or heating treatment on food on food trays (31) of carts (2) that are inserted into and removed from the main body (1), At the front lower end of the storage compartment (3), a notch (36) is formed to receive a part of the frame portion (29) that supports the tray storage portion (30) when the tray storage portion (30) is housed in the storage compartment (3), and front walls (35, 35) that partition the notch (36) are provided on the left and right sides of the front lower end of the storage compartment (3). The main body of the device (1) consists of a rectangular box-shaped outer box (12) with an opening on the front, a rectangular box-shaped inner box (13) with an opening on the front that is housed inside the outer box (12) at a distance from each other, a rectangular frame-shaped decorative frame (14) that joins the four edges of both boxes (12 and 13), and an insulating material (15) that fills the internal space surrounded by both boxes (12 and 13). The inner box (13) consists of an inner bottom wall (44) that forms the bottom surface of the storage compartment (3), and a bottom frame (45) that is joined to the front edge of the inner bottom wall (44) and forms the lower opening edge of the storage compartment (3). The bottom frame (45) consists of an upper front frame body (46) and a back frame body (47) positioned below the front frame body (46). The front frame (46) has through holes (66), and fasteners (68) for fixing the front wall (35) to the bottom frame (45) are inserted through these through holes (66). Between the front frame (46) and the back frame (47), an internal frame space (59) is formed that allows the cleaning water that has entered the bottom frame (45) through the through hole (66) to fall. A cart shelf type food processing apparatus characterized in that a drainage channel (60) is formed between the frame space (59) and the storage space (A) of the storage compartment (3) for discharging the washing water that has entered the frame space (59) into the storage space (A).

2. The front frame (46) comprises a fastening plate (50) consisting of horizontally elongated plates with through holes (66) formed therein, and a front back plate (51) that is connected downward from the rear end of the fastening plate (50). The back frame (47) comprises a connecting plate (53) made of horizontally elongated plates joined to a fastening plate (50), a vertical plate (54) extending downward from the rear end of the connecting plate (53), a water receiving plate (55) extending backward from the lower end of the vertical plate (54), and a back back plate (56) extending downward from the rear end of the water receiving plate (55). The water receiving plate (55) of the back frame (47) is positioned at a predetermined vertical distance from the fastening plate (50) of the front frame (46), and a frame space (59) is formed between these fastening plates (50) and the water receiving plate (55). The cart shelf type food processing apparatus according to claim 1, wherein the drainage channel (60) is formed by a gap (E) formed between the back plate (56) and the front plate (51).

3. A cart shelf type food processing apparatus according to claim 2, wherein a drain hole (80) is formed in the front back plate (51) facing the back back plate (56) in a front-to-back manner, connecting the internal space (A) and the gap (E).

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