JP2017080646A - Washing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a technology capable of improving effect of washing a washing object.SOLUTION: A washing device (10) comprises a rack (18) having a treatment tank (12), a plan view rectangular shelf part (16) arranged in the treatment tank (12)and a column part (14) positioned in a corner part of the shelf part (16) and holding the shelf part (16), a central part nozzle (24) provided in the rack (18) and discharging a cleaning liquid in a plan view circular discharge area (24a) toward a plane central part of the shelf part (16) and a corner part nozzle (28) provided in the rack (18) on the periphery of the plane view circular discharge area (24a) and discharging the cleaning liquid toward a plane corner part of the shelf part (16).SELECTED DRAWING: Figure 1

Description

  The present invention relates to a technique effective when applied to a cleaning apparatus for cleaning an object to be cleaned.

  In Japanese Patent Laying-Open No. 2015-24383 (Patent Document 1), in a cleaning apparatus, a basket containing an object to be cleaned is placed on a shelf, and the cleaning liquid passes through a liquid supply pipe disposed in a cleaning tank. A technique of spraying from a rotating nozzle to an object to be cleaned is described (in particular, paragraphs [0020] to [0022], FIGS. 1 and 2 of the specification).

  In Japanese Patent Application Laid-Open No. 2008-119591 (Patent Document 2), in a cleaning apparatus, a cleaning device is placed on a rack or the like and inserted between rotary spray nozzles provided at an upper part and a lower part in a cleaning tank, A technique is described in which a jet flow of a rotary jet nozzle is jetted onto a cleaning device (in particular, paragraph [0008] of the specification, FIG. 2).

Japanese Patent Laying-Open No. 2015-24383 JP 2008-119591 A

  In a cleaning apparatus as described in Patent Document 1, a rod-shaped nozzle provided in the vicinity of a shelf so that an object to be cleaned is loaded on a rack having a rectangular shelf in plan view and discharges cleaning liquid in a circular shape in plan view. Rotates around this center (circular motion). That is, the cleaning liquid is discharged in a circular shape in a plan view with respect to a shelf portion that is rectangular in a plan view. By the way, the cleaning tank has a space for accommodating the rack, but if the rod-shaped nozzle is too long, it collides with the inner wall surface of the cleaning tank. On the other hand, when the length of the nozzle becomes too short, the planar corner of the shelf becomes a blind spot area where the cleaning liquid from the nozzle does not reach. Therefore, it becomes difficult to clean the objects to be cleaned stacked on the flat corners of the shelf, and the cleaning effect may be reduced.

  In this respect, it is conceivable that the shelf is configured in a square shape or a shape close to a square shape in a plan view. Thereby, the ratio of the area of the corner portion that does not fall within this area range can be made relatively small with respect to the discharge area having a circular shape in plan view formed by discharging the cleaning liquid while the nozzle rotates. However, if the size of the frontage for accommodating the rack is not increased by the cleaning device and the amount of objects to be cleaned can be increased, the shelf is rectangular in plan view (the depth direction is the long side). After all, when considering the loadability, the ratio of the area of the corner of the shelf plate that is rectangular in plan view to the discharge area that is circular in plan view is increased, and the area where the cleaning liquid is difficult to reach increases and the cleaning effect decreases. End up.

  In addition, it is conceivable to increase the level of the shelf (the number of nozzles for each level also increases) or to reduce the area where the cleaning liquid is difficult to reach by using a plurality of nozzles on the plane of the level of the shelf. However, there is a possibility that the reliability of the apparatus is lowered due to an increase in the number of nozzles that are rotating parts.

  An object of the present invention is to provide a technique capable of improving the effect of cleaning an object to be cleaned.

  To briefly explain the summary of typical inventions among inventions disclosed in this application, a cleaning device is provided in a processing tank, the processing tank, a rectangular shelf in plan view, and the shelf A rack having a pillar portion that is positioned at a corner and holding the shelf, and is provided in the rack, and the cleaning liquid is discharged in a circular discharge area in a plan view toward the center of the plane of the shelf. A central nozzle, and a corner nozzle that is provided in the rack around the circular discharge area in plan view and discharges the cleaning liquid toward the flat corner of the shelf.

  Of the inventions disclosed in the present application, the effects obtained by typical ones will be briefly described, and the effect of cleaning an object to be cleaned can be improved.

It is a schematic block diagram of the washing | cleaning apparatus which concerns on one Embodiment of this invention. It is a schematic front view of the washing | cleaning apparatus which concerns on one Embodiment of this invention. It is a schematic perspective view of the washing | cleaning apparatus shown in FIG. It is a schematic perspective view of the principal part of the washing | cleaning apparatus shown in FIG. It is a schematic plan view of the other principal part of the washing | cleaning apparatus shown in FIG. It is a schematic plan view of the rack which concerns on one Embodiment of this invention. It is a schematic perspective view of the rack shown in FIG. It is the schematic perspective view which expanded the principal part of the rack shown in FIG. It is a schematic plan view of the rack which concerns on other embodiment of this invention. FIG. 10 is a schematic perspective view of the rack shown in FIG. 9. FIG. 10 is an enlarged schematic perspective view of a main part of the rack shown in FIG. 9. It is a schematic plan view of the rack which concerns on other embodiment of this invention. It is a schematic perspective view of the rack shown in FIG. FIG. 13 is an enlarged schematic perspective view of a main part of the rack shown in FIG. 12. It is a schematic perspective view of the rack which concerns on other embodiment of this invention. FIG. 16 is a schematic perspective view of the rack shown in FIG. 15, showing a state in which a detachable shelf is removed. It is a schematic perspective view from the upper direction of the detachable shelf part shown in FIG. It is a schematic perspective view from the downward direction of the detachable shelf shown in FIG. FIG. 16 is an enlarged schematic perspective view of a main part of the rack shown in FIG. 15.

  In the following embodiments of the present invention, the description will be divided into a plurality of sections when necessary. However, in principle, they are not irrelevant to each other, and one of them is related to some or all of the other modifications, details, etc. It is in. For this reason, the same code | symbol is attached | subjected to the member which has the same function in all the figures, and the repeated description is abbreviate | omitted. In addition, the number of components (including the number, numerical value, quantity, range, etc.) is limited to that specific number unless otherwise specified or in principle limited to a specific number in principle. It may be more than a specific number or less. In addition, when referring to the shape of a component, etc., it shall include substantially the same or similar to the shape, etc., unless explicitly stated or in principle otherwise considered otherwise .

(Embodiment 1)
A cleaning apparatus 10 according to a first embodiment of the present invention will be described with reference to the drawings. For example, when the cleaning apparatus 10 is used in the medical field, it can clean a medical instrument such as a surgical knife or scissors as an object to be cleaned. FIG. 1 is a schematic configuration diagram of the cleaning apparatus 10. FIG. 2 is a schematic front view of the cleaning apparatus 10. FIG. 3 is a schematic perspective view of the cleaning apparatus 10 shown in FIG. FIG. 4 is a schematic perspective view of one main part (mainly the processing tank 12) of the cleaning apparatus 10 shown in FIG. FIG. 5 is a schematic plan view of another main part (mainly the out-bath circuit part 68) of the cleaning apparatus 10 shown in FIG. FIG. 6 is a schematic plan view of the rack 18. FIG. 7 is a schematic perspective view of the rack 18 shown in FIG. FIG. 8 is an enlarged schematic perspective view of a main part (mainly the corner nozzle 28) of the rack 18 shown in FIG. FIG. 6 shows a state in which the column portion 14 of the rack 18 is cut.

  As shown in FIG. 1, the cleaning apparatus 10 includes a processing tank 12 (also referred to as a cleaning tank) and a rack 18 provided in the processing tank 12. The treatment tank 12 is configured to be hermetically sealed so that an object to be cleaned is cleaned inside. The rack 18 is configured to be detachable (separable) in the processing tank 12 and is taken in and out from the opening 12a (see FIG. 2) of the processing tank 12. Thereby, in the state in which the rack 18 is outside the processing tank 12, it is possible to load an object to be cleaned before washing or to take out an object to be cleaned after cleaning.

  In addition, the cleaning apparatus 10 includes an upper nozzle 70 provided in the upper portion and a lower nozzle 72 provided in the lower portion in the treatment tank 12. Further, the cleaning device 10 includes an outside circuit unit 68 that communicates with the upper nozzle 70 and the lower nozzle 72 and is provided outside the processing tank 12 and through which the cleaning liquid flows. As a result, the upper nozzle 70 and the lower nozzle 72 can receive the supply of the cleaning liquid from the circuit unit 68 outside the tank. Moreover, the cleaning apparatus 10 includes a control unit 48 (for example, a unit on which a CPU is mounted) provided outside the processing tank 12. The control unit 48 executes a plurality of functions that the cleaning device 10 has. For example, the control unit 48 controls the flow of the cleaning liquid in the outside circuit unit 68 when executing the function of discharging (injecting) the cleaning liquid from the upper nozzle 70 and the lower nozzle 72.

  In the processing tank 12, the rack 18 is provided between the upper nozzle 70 and the lower nozzle 72. The upper nozzle 70 and the lower nozzle 72 are, for example, rod-shaped rotating nozzles that are rotated by the discharge flow of the cleaning liquid to be discharged. The upper nozzle 70 has a discharge port 74 that opens downward (that is, the rack 18), and discharges (injects) the cleaning liquid from the discharge port 74 while rotating. That is, the upper nozzle 70 discharges the cleaning liquid from above to the object to be cleaned loaded on the rack 18. The lower nozzle 72 has a discharge port 76 that opens upward (that is, the rack 18), and discharges (injects) the cleaning liquid from the discharge port 76 while rotating. That is, the lower nozzle 72 discharges the cleaning liquid from below to the object to be cleaned loaded on the rack 18.

  Moreover, the cleaning apparatus 10 includes a water supply circuit 78 that is provided outside the processing tank 12 so as to communicate with the inside of the processing tank 12 and through which water (cleaning liquid) flows. The water supply circuit unit 78 includes a two-way valve 80 (for example, an electromagnetic valve) whose opening / closing is controlled by the control unit 48. The water supply circuit unit 78 controls the supply of water to the treatment tank 12 by opening and closing the two-way valve 80. When water is used as the cleaning liquid, the water is supplied into the treatment tank 12 with the two-way valve 80 opened.

  The cleaning apparatus 10 includes a hot water supply circuit unit 82 provided outside the processing tank 12 so as to communicate with the inside of the processing tank 12 and through which hot water (cleaning liquid) flows. The hot water supply circuit unit 82 includes a two-way valve 84 (for example, an electromagnetic valve) whose opening / closing is controlled by the control unit 48. The hot water supply circuit unit 82 controls the supply of hot water to the treatment tank 12 by opening and closing the two-way valve 84. When warm water is used as the cleaning liquid, the warm water is supplied into the treatment tank 12 with the two-way valve 84 opened.

  Further, the cleaning device 10 includes a detergent supply circuit unit 86 provided outside the processing tank 12 so as to communicate with the inside of the processing tank 12 and through which a liquid detergent (cleaning liquid) flows. The detergent supply circuit unit 86 includes a two-way valve 88 (for example, an electromagnetic valve) whose opening / closing is controlled by the control unit 48. The detergent supply circuit unit 86 controls the supply of detergent to the processing tank 12 by opening and closing the two-way valve 88. When a detergent is used as the cleaning liquid, the detergent is supplied into the processing tank 12 with the two-way valve 88 opened.

  By the way, as for the processing tank 12, the bottom part is formed in the inclined surface 90, and the concave pot part 92 is formed in the lowest position (downstream) of the inclined surface 90. FIG. Thereby, the cleaning liquid supplied into the processing tank 12 can be collected in the pot portion 92. In addition, the outside circuit unit 68 communicates with the pot unit 92. As a result, the cleaning liquid can be supplied from the pot portion 92 to the upper nozzle 70 and the lower nozzle 72 via the outside circuit unit 68. Here, the cleaning apparatus 10 includes a heater unit 94 provided in the pot unit 92 and controlled by the control unit 48. The cleaning device 10 can warm the cleaning liquid collected in the pot portion 92 by heating of the heater section 94, and the cleaning effect can be further improved by cleaning using the cleaning liquid.

  The cleaning apparatus 10 includes a drain circuit unit 96 that communicates with the pot unit 92 and is provided outside the processing tank 12 and discharges the cleaning liquid. The drain circuit unit 96 includes a two-way valve 98 (for example, an electromagnetic valve) whose opening / closing is controlled by the control unit 48. The drain circuit 96 controls the discharge of the cleaning liquid to the outside of the processing tank 12 by opening and closing the two-way valve 98. When the cleaning liquid collected in the pot portion 92 is unnecessary, the two-way valve 98 is opened and discharged.

  The cleaning apparatus 10 includes an ultrasonic oscillation unit 100 that is provided in the processing tank 12 and controlled by the control unit 48. The ultrasonic oscillator 100 is provided, for example, in contact with a diaphragm outside the bottom of the processing tank 12, and an ultrasonic vibrator is connected to the diaphragm. Thereby, an ultrasonic wave can be added to the cleaning liquid stored in the treatment tank 12 so that the object to be cleaned is immersed, and the cleaning effect can be further improved by performing the ultrasonic cleaning on the object to be cleaned in addition to the discharge cleaning. Can be improved.

  Further, the cleaning apparatus 10 includes a heated air supply unit 102 that is provided in the processing tank 12 and supplies heated air into the processing tank 12 and an exhaust circuit unit 104 that discharges the air in the processing tank 12. The heated air supply unit 102 includes a heater unit 106 and a fan unit 108 controlled by the control unit 48. The air in the processing tank 12 is heated by the heater unit 106, and this heated air is distributed throughout the processing tank 12 by the fan unit 108. The heated air supply unit 102 can dry the object after cleaning. Further, the exhaust circuit unit 104 can exhaust the air absorbed in the treatment tank 12 by drying the object to be cleaned with heated air.

  As shown in FIGS. 6 and 7, the rack 18 has a pillar portion 14 and a shelf portion 16 having a rectangular shape in plan view (horizontal view) and has a quadrangular prismatic skeleton structure. Specifically, the four pillar portions 14 extend (stand up) in the vertical direction at the respective positions of the four corner portions of the shelf portion 16 that is rectangular in plan view. The four column portions 14 are positioned at the respective corners of the one-stage shelf portion 16 and hold the shelf portion 16. A plurality of (for example, five) shelves 16 (for example, shelves configured in a lattice shape and opened by bones) are provided in parallel to each other in an area surrounded by the four pillars 14.

  In the present embodiment, the size of the opening 12a that accommodates the rack 18 in the cleaning device 10 is not increased, and the amount of the object to be cleaned loaded on the shelf 16 is increased. The depth direction is the long side). When loading an object to be cleaned on such a rack 18, for example, a net-like basket 110 arranged in a plurality of rows (for example, 3 rows) in the longitudinal direction of the shelf 16 can be used. By using the basket 110, a plurality of objects to be cleaned are subdivided and loaded on the rack 18.

  Here, the cleaning device 10 includes a central nozzle 24 and a corner nozzle 28 that are provided to be held in the rack 18. The center nozzle 24 is provided on the rack 18 so as to be rotatable about a rotation shaft 20 at the geometric center of the shelf 16 in plan view. The central nozzle 24 has a discharge port 22 (first discharge port) that opens toward the flat central portion 16a of the shelf 16, and is a rod-shaped shower nozzle that discharges cleaning liquid from the discharge port 22 while rotating. . As shown in FIG. 6, the rotation range of the central nozzle 24 is a discharge area 24a having a circular shape in plan view with the length of the central nozzle 24 as a diameter. In other words, the central nozzle 24 is located in the ejection region 24a in plan view. Further, in FIG. 6, it can be adjusted by the direction (angle) of the discharge port 22 provided in the central nozzle 24, and has a maximum arrival discharge area 24 b where the cleaning liquid reaches the farthest (circular in plan view larger than the discharge area 24 a A discharge area) is also shown. Note that the length of the central nozzle 24 held by the rack 18 that is taken in and out of the processing tank 12 is shorter than the length of the upper nozzle 70 and the lower nozzle 72 that are held in the processing tank 12.

  In the present embodiment, the central nozzle 24 is provided below each of the five shelves 16 except for the lowest one. As a result, the cleaning object loaded on the shelf 16 is cleaned by the cleaning liquid discharged from the lower side of the shelf 16. Note that the cleaning liquid is discharged from the lower nozzle 72 and cleaned with respect to the objects to be cleaned loaded on the shelf 16 at the lowest level. Of course, the central nozzle 24 may also be provided below the lowermost shelf 16.

  The corner nozzle 28 is provided in the rack 18 around the discharge region 24a. Specifically, the corner nozzle 28 is fixed to the column portion 14. The corner nozzle 28 is a shower nozzle that has a discharge port 26 (second discharge port) that opens toward the planar corner 16b of the shelf 16 and from which the cleaning liquid is discharged (see FIG. 8). . That is, the corner nozzles 28 are provided in each of the column portions 14 so that the cleaning liquid is discharged to each of the four planar corner portions 16b of the shelf portion 16.

  In the present embodiment, the corner nozzle 28 is a full cone shower nozzle and can discharge the cleaning liquid in a conical shape from one discharge port 26. The discharge area 28a of the corner nozzle 28 is shown in FIG. Further, in the present embodiment, the corner nozzles 28 are provided on the respective upper sides (above the basket 110 disposed on the shelf 16) excluding the uppermost one of the five shelf units 16. As a result, the cleaning object loaded on the shelf 16 is cleaned by the cleaning liquid discharged from the upper side (obliquely upper side) of the shelf 16. When an object to be cleaned is loaded on the uppermost shelf 16, it is cleaned by the upper nozzle 70. Of course, the corner nozzle 28 may also be provided above the uppermost shelf 16.

  The corner nozzle 28 can cause the cleaning liquid to be discharged to the planar corner portion 16b (dead angle region of the central nozzle 24) that does not reach the shelf portion 16 in the maximum cleaning discharge area 24b of the central nozzle 24. For this reason, the cleaning apparatus 10 can improve the effect of cleaning the objects to be cleaned loaded on the shelf 16 having a rectangular shape in plan view. In particular, the corner nozzle 28 is provided at each of the four corner portions with respect to the shelf portion 16 so that the cleaning liquid can be discharged to the four planar corner portions 16b. For this reason, the cleaning apparatus 10 can clean evenly even if an object to be cleaned is loaded on the entire plane of the shelf 16, and can improve the cleaning effect.

  Further, the cleaning device 10 includes a circuit unit 32 (first circuit unit) provided in the rack 18 so as to communicate with the central nozzle 24. The circuit unit 32 includes an injection unit 30 (first injection unit) into which the cleaning liquid is injected, and the cleaning liquid flows from the injection unit 30 to the central nozzle 24. Here, the circuit unit 32 includes a tube 42 and a tube 44. The tube 42 extends in parallel with the column portion 14 and is positioned on the planar side portion of the shelf portion 16 (see FIG. 6). In this embodiment, the injection | pouring part 30 is provided in each of two places of the pipe | tube 42 (refer FIG. 7). The tube 44 communicates with the tube 42 and extends orthogonally to the tube 42 (see FIG. 2). The central nozzle 24 is detachably provided with a tube 44. According to this, in the state where the central nozzle 24 is removed, the inside of the central nozzle 24 can be easily cleaned.

  Further, the cleaning device 10 includes a circuit unit 36 (second circuit unit) provided in the rack 18 in communication with the corner nozzle 28. The circuit part 36 has an injection part 34 (second injection part) into which the cleaning liquid is injected, and the cleaning liquid flows from the injection part 34 to the corner nozzle 28. Here, the circuit portion 36 has the tubular column portion 14. In other words, the column part 14 is tubular and used for the circuit part 36. A corner nozzle 28 is provided in communication with the tubular column portion 14. In the present embodiment, the two pillar portions 14 on the front side communicate with each other upward, and the two pillar portions 14 on the back side communicate with each other upward. For this reason, the injection | pouring part 34 is provided in each of a front side and a back side (refer FIG. 7). And the corner | angular part nozzle 28 is provided in the pillar part 14 so that attachment or detachment is possible. According to this, in the state where the corner nozzle 28 is removed, the inside of the corner nozzle 28 can be easily cleaned.

  Moreover, the washing | cleaning apparatus 10 is provided with the supply part 38 (1st supply part) and the supply part 40 (2nd supply part) provided in the processing tank 12 (refer FIG. 4). The supply unit 38 supplies the cleaning liquid to the circuit unit 32 in a state where the supply unit 38 communicates with the injection unit 30. Specifically, the supply unit 38 is a hollow expansion body and communicates with the injection unit 30 in a state of being expanded by the inflow of the cleaning liquid. The supply unit 40 supplies the cleaning liquid to the circuit unit 36 in a state where the supply unit 40 communicates with the injection unit 34. Specifically, the supply unit 40 is a hollow expansion body, and communicates with the injection unit 34 in a state of being expanded by the inflow of the cleaning liquid.

  According to this, the cleaning liquid can be supplied from the processing tank 12 to the circuit unit 32 and the circuit unit 36 provided in the rack 18. In addition, since the rack 18 can be attached to and detached from the processing tank 12, for example, it becomes easy to load an object to be cleaned on the shelf 16 in a state where the rack 18 is taken out (separated) from the processing tank 12. . Specifically, in a state where the cleaning liquid is not discharged, the connection between the injection unit 30 and the supply unit 38 and the connection between the injection unit 34 and the supply unit 40 are loosened and can be easily attached and detached. On the other hand, in the state where the cleaning liquid is discharged, the connection between the injection unit 30 and the supply unit 38 and the connection between the injection unit 34 and the supply unit 40 are sealed, and liquid leakage can be prevented.

  The circuit unit 32 and the circuit unit 36 are independent from each other (that is, different systems), and can wash cleaning liquids in different states (conditions). Accordingly, the cleaning can be performed by discharging the cleaning liquid from at least one of the central nozzle 24 and the corner nozzle 28 or by alternately discharging the cleaning liquid from the central nozzle 24 and the corner nozzle 28. Such a cleaning method (cleaning pattern) is appropriately selected and executed (controlled) by the control unit 48. That is, the control unit 48 executes at least one of the first function for discharging the cleaning liquid from the central nozzle 24 and the second function for discharging the cleaning liquid from the corner nozzle 28, or alternately performs the first function and the second function. It can also be executed.

  By the way, the outside circuit unit 68 includes a pump 50 controlled by the control unit 48. This pump 50 sends out the cleaning liquid to the circuit unit 68 outside the tank. Further, the outside circuit unit 68 includes a two-way valve 56 (for example, an electromagnetic valve) whose opening / closing is controlled by the control unit 48. The two-way valve 56 has an inlet 52 (first inlet) and an outlet 54 (first outlet). Further, the outside circuit unit 68 includes a three-way valve 64 (for example, an electromagnetic valve) whose opening / closing is controlled by the control unit 48. The three-way valve 64 has an inlet 58 (second inlet), an outlet 60 (second outlet), and an outlet 62 (third outlet). The outside circuit unit 68 includes a plurality of pipes 66 (66a, 66b, 66c, 66d) communicating with the pump 50, the two-way valve 56, and the three-way valve 64. In such an out-of-tank circuit unit 68, the control unit 48 performs the first function for discharging the cleaning liquid from the central nozzle 24 and the second function for discharging the cleaning liquid from the corner nozzle 28. The opening and closing of the valve 64 is controlled.

  The first pipe 66a branches from the pump 50 and communicates with each of the inlet 52 and the inlet 58. Further, the second pipe 66 b communicates with the central nozzle 24 via the outlet 54 and the circuit part 32. The second pipe 66 b communicates with the upper nozzle 70 and the lower nozzle 72. The third pipe 66 c communicates the corner nozzle 28 with the outlet 60 and the circuit part 36. In addition, the fourth pipe 66d communicates the outlet 62 and the middle part of the second pipe 66b. Here, the flow resistance (thickness) of the fourth pipe 66d is higher (thin) than the flow resistance (thickness) of the first pipe 66a, the second pipe 66b, and the third pipe 66c.

  According to this, the cleaning device 10 (the control unit 48) controls the cleaning pattern by the central nozzle 24 and the corner nozzle 28 from the cleaning liquid feeding pattern by switching / combination of the two-way valve 56 and the three-way valve 64. be able to. At that time, the cleaning device 10 can increase or decrease the flow rate of the cleaning liquid discharged from the central nozzle 24 to improve the cleaning effect.

  Specifically, when the cleaning liquid is strongly discharged only from the central nozzle 24, the cleaning liquid flows from the inlet 52 to the outlet 54 in the two-way valve 56, and the cleaning liquid flows from the inlet 58 to the outlet 62 in the three-way valve 64. (First liquid feeding pattern). Further, when the cleaning liquid is discharged weakly only from the central nozzle 24, the cleaning liquid does not flow from the inlet 52 to the outlet 54 in the two-way valve 56, and the cleaning liquid flows from the inlet 58 to the outlet 62 in the three-way valve 64 (first 2 liquid feeding pattern). When the cleaning liquid is strongly discharged from the central nozzle 24 and the corner nozzle 28, the cleaning liquid flows from the inlet 52 to the outlet 54 in the two-way valve 56, and the cleaning liquid flows from the inlet 58 to the outlet 60 in the three-way valve 64. Flows (third liquid feeding pattern). When the cleaning liquid is strongly discharged from only the corner nozzle 28, the cleaning liquid does not flow from the inlet 52 to the outlet 54 in the two-way valve 56, and the cleaning liquid flows from the inlet 58 to the outlet 60 in the three-way valve 64 (first 4 liquid feeding pattern). Further, when the cleaning liquid is strongly ejected alternately from the central nozzle 24 and the corner nozzle 28, the first liquid feeding pattern and the fourth liquid feeding pattern may be alternately performed.

  It is also conceivable to increase or decrease the flow rate of the discharged cleaning liquid by adding or decreasing the liquid feeding state from the pump 50 using an inverter. However, electromagnetic noise is generated from the inverter, and the cleaning device 10 may not conform to EMC (electromagnetic compatibility) regulations. Therefore, the cleaning device 10 can prevent the generation of electromagnetic noise by controlling the cleaning pattern by switching and combining the two-way valve 56 and the three-way valve 64 instead of the inverter. Further, using the two-way valve 56 and the three-way valve 64 instead of the inverter can reduce the product cost.

(Embodiment 2)
In Embodiment 2 according to the present invention, a corner nozzle 28 having a configuration different from that of Embodiment 1 will be described with reference to the drawings. FIG. 9 is a schematic plan view of the rack 18. FIG. 10 is a schematic perspective view of the rack 18 shown in FIG. FIG. 11 is an enlarged schematic perspective view of a main part (mainly the corner nozzle 28) of the rack 18 shown in FIG. FIG. 9 shows a state in which the column portion 14 of the rack 18 is cut.

  As shown in FIG. 9, also in the present embodiment, the central nozzle 24 is provided in the rack 18, and the cleaning liquid is discharged from the discharge region 24 a having a circular shape in plan view toward the flat central portion 16 a of the shelf 16. . The corner nozzle 28 is provided in the rack 18 around the discharge region 24a. Specifically, the corner nozzle 28 is fixed to the column portion 14, and the cleaning liquid is discharged toward the planar corner portion 16 b of the shelf portion 16.

  In the present embodiment, the corner nozzle 28 is a shower nozzle that can discharge the cleaning liquid in a fan shape from each of the plurality of discharge ports 26 in parallel with each other. The corner nozzles 28 are provided on the respective upper sides (sides of the basket 110 arranged on the shelf 16) excluding the uppermost one of the five shelf units 16. As a result, the cleaning object loaded on the shelf 16 is cleaned by the cleaning liquid discharged from the upper side (side upper side) of the shelf 16. When an object to be cleaned is loaded on the uppermost shelf 16, it is cleaned by the upper nozzle 70. Of course, the corner nozzle 28 may also be provided above the uppermost shelf 16.

  The corner nozzle 28 can discharge the cleaning liquid to the flat corner 16b (dead angle area) that does not reach the shelf 16 in the maximum discharge area 24b of the cleaning liquid by the central nozzle 24. For this reason, the cleaning apparatus 10 can improve the effect of cleaning the objects to be cleaned loaded on the shelf 16. In particular, the corner nozzle 28 is provided at each of the four corners with respect to the shelf portion 16, so that the cleaning liquid can be discharged to the four planar corner portions 16 b (the blind spot region of the center nozzle 24). For this reason, the cleaning apparatus 10 can clean evenly even if an object to be cleaned is loaded on the entire plane of the shelf 16, and can improve the cleaning effect.

  In the present embodiment, the circuit portion 36 provided in the rack 18 so as to communicate with the corner nozzle 28 includes the tubular column portion 14. In other words, the column part 14 is tubular and used for the circuit part 36. The two pillars 14 on the front side communicate with each other upward, and the two pillars 14 on the back side communicate with each other upwards. A corner nozzle 28 is provided in communication with the tubular column portion 14. In the present embodiment, the corner nozzle 28 is detachably provided on the column portion 14. According to this, in the state where the corner nozzle 28 is removed, the inside of the corner nozzle 28 can be easily cleaned.

(Embodiment 3)
In a third embodiment according to the present invention, a corner nozzle 28 having a configuration different from those of the first and second embodiments will be described with reference to the drawings. FIG. 12 is a schematic plan view of the rack 18. FIG. 13 is a schematic perspective view of the rack 18 shown in FIG. FIG. 14 is an enlarged schematic perspective view of a main part (mainly the corner nozzle 28) of the rack 18 shown in FIG. In addition, FIG. 12 shows the column portion 14 of the rack 18 in a cut state.

  As shown in FIG. 12, also in this embodiment, the central nozzle 24 is provided in the rack 18, and the cleaning liquid is discharged from the discharge region 24 a having a circular shape in plan view toward the flat central portion 16 a of the shelf 16. . The corner nozzle 28 is provided in the rack 18 around the discharge region 24a. Specifically, the corner nozzle 28 is provided in the column portion 14, and the cleaning liquid is discharged toward the planar corner portion 16 b of the shelf portion 16.

  In the present embodiment, the corner nozzles 28 are shower nozzles that can discharge the cleaning liquid radially from each of the plurality of discharge ports 26 formed in the column portion 14 in a linear shape (beam shape). The corner nozzles 28 are provided on the upper side of each of the five shelves 16 (the side of the basket 110 disposed on the shelves 16). As a result, the cleaning object loaded on the shelf 16 is cleaned by the cleaning liquid discharged from the upper side (side upper side) of the shelf 16. When an object to be cleaned is loaded on the uppermost shelf 16, it is also cleaned by the upper nozzle 70.

  The corner nozzle 28 can discharge the cleaning liquid to the flat corner 16b (dead angle area) that does not reach the shelf 16 in the maximum discharge area 24b of the cleaning liquid by the central nozzle 24. For this reason, the cleaning apparatus 10 can improve the effect of cleaning the objects to be cleaned loaded on the shelf 16. In particular, the corner nozzle 28 is provided at each of the four corners with respect to the shelf portion 16, so that the cleaning liquid can be discharged to the four planar corner portions 16 b (the blind spot region of the center nozzle 24). For this reason, the cleaning apparatus 10 can clean evenly even if an object to be cleaned is loaded on the entire plane of the shelf 16, and can improve the cleaning effect.

  In the present embodiment, the circuit portion 36 provided in the rack 18 so as to communicate with the corner nozzle 28 includes the tubular column portion 14. In other words, the column part 14 is tubular and used for the circuit part 36. The two pillars 14 on the front side communicate with each other upward, and the two pillars 14 on the back side communicate with each other upwards. A corner nozzle 28 is provided in communication with the tubular column portion 14. In this embodiment, the circuit part 36 has the cap part 46 provided in the tubular pillar part 14 so that attachment or detachment is possible. According to this, in a state where the cap portion 46 is removed, a jig such as a brush can be inserted into the tubular column portion 14 and the inside can be easily cleaned.

(Embodiment 4)
In the fourth embodiment according to the present invention, the corner nozzle 28 provided in the shelf portion 16 instead of the column portion 14 in the first, second, and third embodiments will be described with reference to the drawings. FIG. 15 is a schematic perspective view of the rack 18. FIG. 16 is a schematic perspective view of the rack 18 with the removable shelf 16 removed. FIG. 17 is a schematic perspective view from above of the detachable shelf 16. FIG. 18 is a schematic perspective view of the detachable shelf 16 from below. FIG. 19 is an enlarged schematic perspective view of a main part (mainly the corner nozzle 28) of the rack 18 shown in FIG.

  As shown in FIGS. 15 and 16, the rack 18 has a pillar portion 14 and a shelf portion 16 that is rectangular in plan view (horizontal view) and has a quadrangular prismatic skeleton structure. Specifically, the four pillar portions 14 extend (stand up) in the vertical direction at the respective positions of the four corner portions of the shelf portion 16 that is rectangular in plan view. The four column portions 14 are positioned at the respective corners of the one-stage shelf portion 16 and hold each shelf portion 16. A plurality of (for example, four) shelf portions 16 (for example, shelf plates opened in a lattice form at the bone portions) are provided in parallel to each other in an area surrounded by the four column portions 14. Then, using a basket 110 (see FIG. 6 and the like) arranged on the shelf 16, a plurality of objects to be cleaned are subdivided and loaded on the rack 18.

  In the present embodiment, the three tiers except the lowest tier among the four tiers 16 are detachable ledges 16. For this reason, the rack 18 has a beam portion 120 that connects the column portion 14 on the front side and the column portion 14 on the back side on both side surfaces (connects via a tube 42 on the side surface on the tube 42 side). The detachable shelf 16 has a hooking claw 122 to be hooked and held by the beam portions 120 on both sides of the rack 18. In this manner, the detachable shelf 16 is provided on the pillar 14 via the beam 120.

  Also in the present embodiment, the cleaning apparatus 10 includes the central nozzle 24 and the corner nozzle 28 that are provided to be held in the rack 18. The central nozzle 24 is configured such that the cleaning liquid is discharged from a discharge region 24a (see FIG. 6 and the like) having a circular shape in plan view toward the flat central portion 16a of the shelf portion 16. In the present embodiment, the central nozzle 24 is provided below each of the four shelves 16 except for the lowest one. As a result, the cleaning object loaded on the shelf 16 is cleaned by the cleaning liquid discharged from the lower side of the shelf 16. Note that the cleaning liquid is discharged from the lower nozzle 72 (see FIG. 4 and the like) to be cleaned with respect to the objects to be cleaned loaded on the bottom shelf 16. Of course, the central nozzle 24 may also be provided below the lowermost shelf 16.

  The corner nozzle 28 is provided in the rack 18 around the discharge region 24a. Specifically, the corner nozzle 28 is provided on the shelf 16, and the cleaning liquid is discharged toward the planar corner 16 b (see FIG. 6 and the like) of the shelf 16. That is, the corner nozzle 28 is provided in the shelf 16 so that the cleaning liquid is discharged to each of the four planar corners 16b of the shelf 16. The corner nozzle 28 opens toward the planar corner 16b of the shelf 16 and has a plurality of discharge ports 26 (see FIG. 19) formed by perforating the bone portion 124 constituting the shelf 16. That is, the corner nozzle 28 is a shower nozzle that can discharge the cleaning liquid radially from each of the plurality of discharge ports 26 in a linear shape (beam shape).

  In addition, the cleaning device 10 includes a circuit unit 36 provided in the rack 18 so as to communicate with the corner nozzle 28. The circuit unit 36 has an injection part 34 into which the cleaning liquid is injected, and the cleaning liquid flows from the injection part 34 to the corner nozzle 28. As a specific configuration, an injection portion 34 is provided in communication with the tubular column portion 14 on one side of the rack 18. A corner nozzle 28 is provided in communication with the tubular bone portion 124 of the shelf 16. And in the lowest shelf 16 provided fixed to the column 14, the tubular column 14 and the tubular bone 124 are provided in direct communication.

  On the other hand, in the other shelf part 16 provided in the column part 14 so that attachment or detachment is possible, the tubular pillar part 14 and the tubular bone part 124 are provided in communication via the tubular beam part 120. For this reason, the tubular column part 14 and the tubular beam part 120 are provided in direct communication. Further, the tubular beam portion 120 and the tubular bone portion 124 are provided in communication with each other via a seal member 126 (for example, a rubber bush) provided on the tubular beam portion 120. That is, when the detachable shelf 16 is attached, the supply port 120a of the beam portion 120 on the side where the cleaning liquid is supplied via the seal member 126 and the injection port 124a of the bone portion 124 on the side where the cleaning liquid is injected. Align and communicate. In addition, in the state where the detachable shelf 16 is removed, the inside of the tubular bone portion 124 of the shelf 16 can be easily cleaned.

  Thus, in this embodiment, the circuit part 36 has the tubular column part 14, the tubular beam part 120, and the tubular bone part 124 constituting the shelf part 16. In other words, the pillar portion 14, the beam portion 120, and the bone portion 124 of the shelf portion 16 are tubular and used for the circuit portion 36. Further, the corner nozzle 28 provided in communication with the circuit portion 36 has a planar corner portion 16b (dead angle) that does not reach the shelf portion 16 in the maximum reachable discharge region 24b (see FIG. 6 and the like) of the cleaning liquid by the center nozzle 24. The cleaning liquid can be discharged to the region.

  For this reason, the cleaning apparatus 10 can improve the effect of cleaning the objects to be cleaned loaded on the shelf 16. In particular, the corner nozzle 28 is provided at each of the four corners with respect to the shelf portion 16, so that the cleaning liquid can be discharged to the four planar corner portions 16 b (the blind spot region of the center nozzle 24). For this reason, the cleaning apparatus 10 can clean evenly even if an object to be cleaned is loaded on the entire plane of the shelf 16, and can improve the cleaning effect.

  Further, the discharge port 26 is provided on the upper side of the bone portion 124 of the lowermost shelf 16, and the upper and lower sides (see FIGS. 17 and 18) of the other bone portions 124 of the removable shelf 16. A discharge port 26 is provided. In particular, by providing the corner nozzle 28 on the upper side of the bone portion 124 of the shelf portion 16, the cleaning liquid can be discharged from directly under the object to be cleaned loaded on the shelf portion 16 via the basket 110, and the cleaning effect is improved. It can be improved further.

  The present invention has been specifically described above based on the embodiments. However, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the gist thereof as follows. Nor.

  In the first to fourth embodiments, the case where the rack shelf has a rectangular shape (rectangular shape) in plan view has been described. The present invention is not limited to this, and the present invention can also be applied to a case where the rack shelf has a square shape (rectangular shape) in plan view, and the cleaning effect can be improved by discharging the cleaning liquid to the planar corner portion.

  In the first to fourth embodiments, the case has been described where a rotatable rod-shaped shower nozzle is used as the central nozzle located in the circular discharge region in plan view. Not limited to this, a shower nozzle having a circular shape in plan view can be used as the central nozzle.

DESCRIPTION OF SYMBOLS 10 Cleaning apparatus; 12 Processing tank; 12a Opening part;
14 pillar parts; 16 shelves; 16a plane center part;
16b plane corner; 18 racks; 20 axis of rotation;
22 discharge port; 24 central nozzle; 24a discharge area;
24b Maximum discharge area; 26 discharge port; 28 corner nozzle;
28a discharge area; 30 injection part; 32 circuit part;
34 injection section; 36 circuit section; 38 supply section;
40 supply part; 42, 44 pipe; 46 cap part;
48 control unit; 50 pump; 52 inlet;
54 Outlet; 56 Two-way valve; 58 Inlet;
60 outlet; 62 outlet; 64 three-way valve;
66, 66a, 66b, 66c, 66d pipe; 68 circuit outside the tank;
70 Upper nozzle; 72 Lower nozzle; 74 Discharge port;
76 Discharge port; 78 Water supply circuit; 80 Two-way valve;
82 Hot water supply circuit part; 84 Two-way valve; 86 Detergent supply circuit part;
88 Two-way valve; 90 Inclined surface; 92 Pot part;
94 Heater part; 96 Drainage circuit part; 98 Two-way valve;
DESCRIPTION OF SYMBOLS 100 Ultrasonic oscillation part; 102 Heating air supply part; 104 Exhaust circuit part;
106 heater section; 108 fan section; 110 basket;
120 beam part; 120a supply port; 122 catching claw;
124 bone part; 124a inlet; 126 seal member.

Claims (11)

A treatment tank;
A rack that is provided in the processing tank and has a rectangular shelf in plan view, and a pillar that is positioned at a corner of the shelf and holds the shelf;
A central nozzle that is provided in the rack and from which a cleaning liquid is discharged in a circular discharge region in plan view toward the flat central portion of the shelf;
A corner nozzle that is provided in the rack around a circular discharge region in plan view, and that discharges cleaning liquid toward the planar corner of the shelf;
A cleaning apparatus comprising: A first circuit portion provided in the rack in communication with the central nozzle and having a first injection portion into which a cleaning liquid is injected;
A second circuit part having a second injection part which is provided in the rack in communication with the corner nozzle and is injected with a cleaning liquid, independent of the first circuit part;
The cleaning apparatus according to claim 1, further comprising: A first supply unit that is provided in the processing tank and in which the cleaning liquid is supplied to the first circuit unit in a state of being in communication with the first injection unit;
A second supply unit that is provided in the treatment tank and in which the cleaning liquid is supplied to the second circuit unit in communication with the second injection unit;
Further comprising
The first supply unit is a hollow expansion body, and is communicated with the first injection unit in a state in which the first supply unit is expanded by inflow of a cleaning liquid,
The cleaning apparatus according to claim 2, wherein the second supply unit is a hollow expansion body and communicates with the second injection unit in a state of being expanded by an inflow of cleaning liquid.   The cleaning apparatus according to claim 2 or 3, wherein the central nozzle is detachably provided in the first circuit portion.   The cleaning device according to any one of claims 2 to 4, wherein the corner nozzle is detachably provided in the second circuit portion.   The cleaning apparatus according to claim 2, wherein the second circuit portion includes a cap portion that is detachably provided on the tubular column portion.   Control for executing at least one of a first function for discharging the cleaning liquid from the central nozzle and a second function for discharging the cleaning liquid from the corner nozzle, or alternately executing the first function and the second function. The cleaning apparatus according to claim 1, further comprising a section. A pump that is provided outside the processing tank and delivers a cleaning liquid; a two-way valve having a first inlet and a first outlet; a three-way valve having a second inlet, a second outlet, and a third outlet; And further comprising an outside circuit unit having a plurality of tubes,
The plurality of pipes branch from the pump and communicate with the first inlet and the second inlet, respectively, and the second outlet communicates with the first outlet and the central nozzle. A pipe, a third pipe that communicates the second outlet and the corner nozzle, and a fourth pipe that communicates the third outlet and the middle part of the second pipe,
The flow resistance of the fourth pipe is higher than the flow resistance of the first, second and third pipes;
8. The cleaning apparatus according to claim 7, wherein when the control unit executes the first function and the second function, opening and closing of the two-way valve and the three-way valve are controlled.   The cleaning apparatus according to claim 1, further comprising an ultrasonic oscillation unit provided in the processing tank.   The cleaning device according to any one of claims 1 to 9, wherein the corner nozzle is provided in communication with the tubular column portion.   The cleaning device according to any one of claims 1 to 9, wherein the corner nozzle is provided in communication with a tubular bone portion constituting the shelf.

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