JP6637721B2 - Cleaning equipment - Google Patents

Description

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

  In Japanese Patent Application Laid-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 a cleaning liquid is supplied through a liquid supply pipe provided in a cleaning tank. A technique of spraying the object to be cleaned from a rotary nozzle is described (especially, paragraphs [0020] to [0022] of the specification, FIGS. 1 and 2).

  Japanese Patent Laying-Open No. 2008-119591 (Patent Literature 2) discloses that in a cleaning apparatus, cleaning equipment is placed on a rack or the like and inserted between rotating jet nozzles provided at an upper portion and a lower portion in a cleaning tank. A technique in which a jet of a rotary jet nozzle is jetted to a cleaning device is described (in particular, paragraph [0008] of the specification, see FIG. 2).

JP-A-2005-24383 JP 2008-119591 A

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

  In this regard, it is conceivable to configure the shelf in a square shape or a shape close to a square in plan view. This makes it possible to relatively reduce the ratio of the area of the corner that does not fall within this area range to the circular discharge area formed by discharging the cleaning liquid while the nozzle rotates. However, when it is desired to increase the amount of the object to be cleaned without increasing the size of the frontage for accommodating the rack in the cleaning device, the shelf becomes a rectangular shape in plan view (the longer side in the depth direction). After all, when the loadability is taken into consideration, the ratio of the area of the corners of the rectangular shelf plate in plan view to the discharge area in circular view in plan view becomes large, the area where the cleaning liquid does not easily reach increases, and the cleaning effect decreases. Would.

  It is also conceivable to increase the number of steps on the shelf (increase the number of nozzles for each step) or to reduce the area where the cleaning liquid does not easily reach by using a plurality of nozzles with respect to the plane of the single shelf. However, the reliability of the apparatus may be reduced due to the increase in the number of nozzles as 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.

Of the inventions disclosed in the present application, the outline of a typical one will be briefly described. A cleaning device is provided in a processing tank, the processing tank, and a rectangular shelf in plan view, A rack having a pillar portion that is located at a corner and holds the shelf, and a cleaning liquid that is provided on the rack and that is discharged toward a center of a plane of the shelf in a circular discharge area in plan view. A central nozzle, a corner nozzle provided on the rack around the circular discharge area in a plan view, and a cleaning liquid discharged toward a planar corner of the shelf, and communicating with the central nozzle. A first circuit unit provided on the rack and having a first injection unit into which the cleaning liquid is injected, and a second circuit unit provided on the rack in communication with the corner nozzle and having a second injection unit into which the cleaning liquid is injected. The cleaning liquid is discharged from the circuit unit and the central nozzle. A control unit configured to execute at least one of a first function and a second function of discharging a cleaning liquid from the corner nozzle, or a control unit configured to alternately execute the first function and the second function, and provided outside the processing tank. A pump for sending out 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 a plurality of pipes. A circuit outside the tank, wherein the plurality of pipes are branched from the pump and communicate with the first inlet and the second inlet, respectively, the first outlet, the first outlet, A second pipe that communicates with the central nozzle through a first circuit, a third pipe that communicates the second outlet with the corner nozzle through the second circuit, and a third pipe. And a fourth pipe communicating between the outlet and the middle of the second pipe. When the flow path resistance of the fourth pipe is higher than the flow resistances of the first, second and third pipes and the control unit executes the first function and the second function, The opening and closing of the valve and the three-way valve are controlled .

  The effects obtained by typical ones of the inventions disclosed in the present application can be briefly described to improve the effect of cleaning an object to be cleaned.

It is a schematic structure figure of a washing device concerning one embodiment of the present invention. 1 is a schematic front view of a cleaning device according to an embodiment of the present invention. FIG. 3 is a schematic perspective view of the cleaning device shown in FIG. 2. FIG. 3 is a schematic perspective view of a main part of the cleaning device shown in FIG. 2. FIG. 3 is a schematic plan view of another main part of the cleaning device shown in FIG. 2. It is an outline top view of the rack concerning one embodiment of the present invention. It is a schematic perspective view of the rack shown in FIG. FIG. 7 is an enlarged schematic perspective view of a main part of the rack shown in FIG. 6. It is an outline top view of the rack concerning other embodiments of the present invention. It is a schematic perspective view of the rack shown in FIG. It is the schematic perspective view which expanded one principal part of the rack shown in FIG. It is an outline top view of the rack concerning other embodiments of the present invention. FIG. 13 is a schematic perspective view of the rack shown in FIG. 12. FIG. 13 is an enlarged schematic perspective view of a main part of the rack shown in FIG. 12. It is an outline perspective view of the rack concerning other embodiments of the present invention. FIG. 16 is a schematic perspective view of the rack shown in FIG. 15, showing a state where a detachable shelf is removed. FIG. 17 is a schematic perspective view from above of the detachable shelf shown in FIG. 16. FIG. 17 is a schematic perspective view of the detachable shelf shown in FIG. 16 as viewed from below. 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, if necessary, the description will be made by dividing into a plurality of sections, etc., but in principle, they are not independent of each other, and one is related to some or all of the other modified examples, details, etc. It is in. Therefore, in all the drawings, members having the same functions are denoted by the same reference numerals, and the repeated description thereof will be omitted. In addition, the number of components (including the number, numerical value, amount, range, etc.) is limited to a specific number, unless otherwise specified or limited to a specific number in principle. Instead, the number may be more than or less than a specific number. In addition, when referring to the shape of a component or the like, it is intended to include a shape substantially similar to or similar to the shape or the like, unless otherwise specified, and in cases where it is considered in principle not to be so. .

(Embodiment 1)
A cleaning device 10 according to a first embodiment of the present invention will be described with reference to the drawings. When the cleaning device 10 is used in the medical field, for example, it can clean medical instruments such as surgical scalpels and scissors as objects to be cleaned. FIG. 1 is a schematic configuration diagram of the cleaning device 10. FIG. 2 is a schematic front view of the cleaning device 10. FIG. 3 is a schematic perspective view of the cleaning device 10 shown in FIG. FIG. 4 is a schematic perspective view of a 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 external circuit section 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, a corner nozzle 28) of the rack 18 shown in FIG. FIG. 6 shows a state in which the pillar 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 processing tank 12 is configured to be hermetically sealable 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 inserted into and removed from an opening 12 a (see FIG. 2) of the processing tank 12. Thus, when the rack 18 is outside the processing tank 12, it is possible to load the object to be cleaned before cleaning and to take out the object to be cleaned after cleaning.

  In addition, the cleaning apparatus 10 includes an upper nozzle 70 provided at an upper portion and a lower nozzle 72 provided at a lower portion in the processing tank 12. Further, the cleaning apparatus 10 includes an external circuit section 68 which is provided outside the processing tank 12 in communication with the upper nozzle 70 and the lower nozzle 72 and through which the cleaning liquid flows. Accordingly, 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. Further, 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 causes a plurality of functions of the cleaning device 10 to be executed. For example, the control unit 48 controls the flow of the cleaning liquid in the circuit unit 68 outside the tank when executing the function of discharging (spraying) the cleaning liquid from the upper nozzle 70 and the lower nozzle 72.

  In the processing tank 12, a 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 rotary nozzles that rotate 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 (sprays) 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 (sprays) 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.

  Further, the cleaning apparatus 10 is provided outside the processing tank 12 so as to communicate with the inside of the processing tank 12, and includes a water supply circuit unit 78 through which water (cleaning liquid) flows. The water supply circuit unit 78 includes a two-way valve 80 (for example, a solenoid valve) whose opening and closing are 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 processing tank 12 with the two-way valve 80 opened.

  Further, the cleaning apparatus 10 includes a hot water supply circuit section 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, a solenoid valve) whose opening and closing are controlled by the control unit 48. The hot water supply circuit 82 controls the supply of hot water to the processing tank 12 by opening and closing the two-way valve 84. When using warm water as the cleaning liquid, the warm water is supplied into the processing 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, a solenoid valve) whose opening and closing are controlled by the control unit 48. The detergent supply circuit unit 86 controls the supply of the 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.

  Incidentally, the processing tank 12 has a bottom formed on the inclined surface 90, and a concave pot portion 92 formed at the lowest position (downstream) of the inclined surface 90. Thus, the cleaning liquid supplied into the processing tank 12 can be collected in the pot portion 92. Further, the outside circuit section 68 communicates with the pot section 92. Thus, the cleaning liquid can be supplied from the pot portion 92 to the upper nozzle 70 and the lower nozzle 72 via the external circuit portion 68. Here, the cleaning device 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 the heating of the heater 94, and can further improve the cleaning effect by performing cleaning using the cleaning liquid.

  Further, the cleaning apparatus 10 includes a drain circuit section 96 which is provided outside the processing tank 12 in communication with the pot section 92 and discharges the cleaning liquid. The drain circuit section 96 includes a two-way valve 98 (for example, a solenoid valve) whose opening and closing are controlled by the control section 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.

  Further, the cleaning device 10 includes an ultrasonic oscillation unit 100 provided in the processing tank 12 and controlled by the control unit 48. The ultrasonic oscillator 100 is provided, for example, with a vibration plate in contact with the outside of the bottom of the processing tank 12, and an ultrasonic vibrator is connected to the vibration plate. Thereby, ultrasonic waves can be applied to the cleaning liquid stored in the processing tank 12 and immersed in the object to be cleaned, and the cleaning effect can be further improved by performing ultrasonic cleaning in addition to discharge cleaning on the object to be cleaned. Can be improved.

  In addition, 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 air from 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 the heated air is distributed throughout the processing tank 12 by the fan unit 108. The heated air supply unit 102 can dry the object to be cleaned after the cleaning. Further, the exhaust circuit unit 104 can exhaust the air in the processing tank 12 that has absorbed moisture by drying the object to be cleaned with the heated air.

  As shown in FIG. 6 and FIG. 7, the rack 18 has a pillar portion 14 and a rectangular shelf portion 16 in a plan view (horizontal plane view), and has a quadrangular pillar-shaped skeleton structure. Specifically, the four pillars 14 extend (stand) in the vertical direction at respective positions of the four corners of the shelf 16 having a rectangular shape in plan view. The four pillars 14 are located at respective corners of the one-stage shelf 16 and hold the shelf 16. A plurality of (for example, five) shelves 16 (for example, open shelves formed in a lattice shape with skeletons) are provided in parallel with each other in a region surrounded by the four pillars 14.

  In the present embodiment, in order to increase the amount of the object to be cleaned loaded on the shelf 16 without increasing the width of the opening 12a for accommodating the rack 18 in the cleaning device 10, the shelf 16 is rectangular (in plan view). The depth direction is the long side). When the objects to be cleaned are stacked on the rack 18, for example, a mesh basket 110 arranged in a plurality of rows (for example, three 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 divided into small portions and stacked on the rack 18.

  Here, the cleaning device 10 includes a central nozzle 24 and a corner nozzle 28 provided to be held on the rack 18. The center nozzle 24 is provided on the rack 18 so as to be rotatable about a rotation axis 20 at the geometric center of the shelf 16 in a plan view. The central nozzle 24 is a rod-shaped shower nozzle having a discharge port 22 (first discharge port) that opens toward the plane central part 16 a of the shelf 16, and from which the cleaning liquid is discharged 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 having a diameter equal to the length of the central nozzle 24. In other words, the central nozzle 24 is located in the ejection area 24a in plan view. In FIG. 6, the maximum reaching discharge area 24 b (which is larger than the discharge area 24 a and has a circular shape in plan view) that can be adjusted by the direction (angle) of the discharge port 22 provided in the central nozzle 24 and reaches the farthest cleaning liquid. (Discharge area) is also shown. Note that the length of the central nozzle 24 held by the rack 18 which is taken in and out of the processing tank 12 is shorter than the lengths of the upper nozzle 70 and the lower nozzle 72 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 lowermost one. As a result, the object to be cleaned loaded on the shelf 16 is washed by the cleaning liquid discharged from the lower side of the shelf 16. The cleaning liquid is discharged from the lower nozzle 72 to the object to be cleaned loaded on the lowermost shelf 16 and is cleaned. Of course, the central nozzle 24 may be provided below the lowermost shelf 16.

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

  In the present embodiment, the corner nozzle 28 is a full-cone-shaped shower nozzle, and can discharge the cleaning liquid from one discharge port 26 in a conical shape. FIG. 6 shows the discharge area 28a of the corner nozzle 28. In the present embodiment, the corner nozzles 28 are provided on the upper sides (upper sides of the basket 110 arranged on the shelf 16) except for the uppermost one of the five stages of the shelf 16. As a result, the object to be cleaned loaded on the shelf 16 is cleaned by the cleaning liquid discharged from the upper side (oblique 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 be provided above the uppermost shelf 16.

  The corner nozzle 28 can discharge the cleaning liquid to the flat corner 16 b (the blind spot area of the central nozzle 24) that cannot reach the shelf 16 in the maximum reaching discharge area 24 b of the cleaning liquid by the central nozzle 24. For this reason, the cleaning device 10 can improve the effect of cleaning the object to be cleaned loaded on the shelf 16 having a rectangular shape in plan view. In particular, since the corner nozzles 28 are provided at each of the four corners with respect to the shelf 16, the cleaning liquid can be discharged to the four plane corners 16b. For this reason, the cleaning device 10 can uniformly clean even if the object to be cleaned is stacked on the entire flat surface of the shelf 16, and the cleaning effect can be improved.

  Further, the cleaning device 10 includes a circuit unit 32 (first circuit unit) provided on the rack 18 in communication with the central nozzle 24. The circuit section 32 has an injection section 30 (first injection section) into which the cleaning liquid is injected, and the cleaning liquid flows from the injection section 30 to the central nozzle 24. Here, the circuit section 32 has a tube 42 and a tube 44. The tube 42 extends parallel to the pillar portion 14 and is located on the side of the flat surface of the shelf 16 (see FIG. 6). In this embodiment, the injection part 30 is provided in each of two places of the pipe | tube 42 (refer FIG. 7). Further, 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 by a pipe 44. According to this, when 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 on the rack 18 in communication with the corner nozzle 28. The circuit section 36 has an injection section 34 (second injection section) into which the cleaning liquid is injected, and the cleaning liquid flows from the injection section 34 to the corner nozzle 28. Here, the circuit portion 36 has the tubular pillar portion 14. In other words, the pillar portion 14 is formed into a tubular shape and used for the circuit portion 36. Then, a corner nozzle 28 is provided in communication with the tubular pillar 14. In this embodiment, the two pillars 14 on the front side communicate with each other upward, and the two pillars 14 on the rear side communicate with each other upward. For this reason, the injection | pouring part 34 is provided in each of the front side and the back side (refer FIG. 7). And the corner part nozzle 28 is provided in the column part 14 so that attachment or detachment is possible. According to this, when the corner nozzle 28 is removed, the inside of the corner nozzle 28 can be easily cleaned.

  Further, the cleaning device 10 includes a supply unit 38 (first supply unit) and a supply unit 40 (second supply unit) provided in the processing tank 12 (see FIG. 4). The supply unit 38 supplies the cleaning liquid to the circuit unit 32 in a state where the cleaning liquid is communicated with the injection unit 30. Specifically, the supply unit 38 is a hollow inflatable body, and communicates with the injection unit 30 in a state where the supply unit 38 is 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 cleaning liquid is communicated with the injection unit 34. Specifically, the supply unit 40 is a hollow inflatable body, and is in communication 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 section 32 and the circuit section 36 provided in the rack 18. In addition, since the rack 18 can be attached to and detached from the processing tank 12, it is easy to load the object to be cleaned on the shelf 16 in a state where the rack 18 is taken out (separated state) from the processing tank 12, for example. . Specifically, in a state in which 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, so that attachment and detachment are easy. On the other hand, in a state in which 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, so that liquid leakage can be prevented.

  The circuit section 32 and the circuit section 36 are independent of each other (that is, separate systems), and can flow the cleaning liquid in different states (conditions). Thus, cleaning can be performed by discharging the cleaning liquid from at least one of the central nozzle 24 and the corner nozzle 28, and 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 of discharging the cleaning liquid from the central nozzle 24 and the second function of discharging the cleaning liquid from the corner nozzle 28, and alternates the first function and the second function. Can also be executed.

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

  The first pipe 66a is branched from the pump 50 and communicates with each of the inlet 52 and the inlet 58. In addition, the second pipe 66b communicates with the central nozzle 24 via the outlet 54 and the circuit section 32. The second pipe 66b also communicates with the upper nozzle 70 and the lower nozzle 72. The third pipe 66c communicates the outlet nozzle 60 with the corner nozzle 28 via the circuit unit 36. The fourth pipe 66d communicates the outlet 62 with a middle part of the second pipe 66b. Here, the flow path resistance (thickness) of the fourth pipe 66d is higher (thinner) 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 sending pattern by switching and combining the two-way valve 56 and the three-way valve 64. be able to. At that time, the cleaning device 10 can improve the cleaning effect by adding strength to the flow rate of the cleaning liquid discharged from the central nozzle 24.

  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 transfer pattern). When the cleaning liquid is weakly discharged only from the central nozzle 24, the cleaning liquid does not flow from the inflow port 52 to the outflow port 54 in the two-way valve 56, and the cleaning liquid flows from the inflow port 58 to the outflow port 62 in the three-way valve 64. 2 liquid feeding pattern). When the cleaning liquid is strongly discharged from the center 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. Flow (third liquid transfer pattern). When the cleaning liquid is strongly discharged only from the corner nozzle 28, the cleaning liquid does not flow from the inflow port 52 to the outflow port 54 in the two-way valve 56, and the cleaning liquid flows from the inflow port 58 to the outflow port 60 in the three-way valve 64 (No. 4 solution sending pattern). When the cleaning liquid is strongly ejected alternately from the center nozzle 24 and the corner nozzle 28, the above-described first liquid supply pattern and fourth liquid supply pattern may be performed alternately.

  It is also conceivable that the flow rate of the cleaning liquid to be discharged may be increased or decreased by giving an intensity to the liquid sending state from the pump 50 using an inverter. However, there is a possibility that electromagnetic noise is generated from the inverter, and the cleaning device 10 does not comply with EMC (electromagnetic compatibility) regulations. Therefore, the cleaning device 10 can prevent generation of electromagnetic noise by controlling the cleaning pattern by switching / 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 a second embodiment according to the present invention, a corner nozzle 28 having a configuration different from that of the first embodiment 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, a corner nozzle 28) of the rack 18 shown in FIG. FIG. 9 shows a state in which the pillar portion 14 of the rack 18 is cut.

  As shown in FIG. 9, also in the present embodiment, the central nozzle 24 is provided on the rack 18, and the cleaning liquid is discharged toward the planar central part 16 a of the shelf 16 in a circular discharge area 24 a in plan view. . The corner nozzle 28 is provided on the rack 18 around the discharge area 24a. Specifically, the corner nozzle 28 is fixedly provided on the pillar portion 14, and the cleaning liquid is discharged toward the planar corner portion 16 b of the shelf 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 upper side (side of the basket 110 arranged on the shelf 16) except for the uppermost one of the five stages of the shelf 16. As a result, the object to be cleaned 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 be provided above the uppermost shelf 16.

  The corner nozzle 28 can discharge the cleaning liquid to the flat corner 16b (dead area) that cannot reach the shelf 16 in the maximum reaching discharge area 24b of the cleaning liquid by the central nozzle 24. For this reason, the cleaning device 10 can improve the effect of cleaning the object to be cleaned loaded on the shelf 16. In particular, since the corner nozzles 28 are provided at each of the four corners with respect to the shelf 16, the cleaning liquid can be discharged to the four plane corners 16b (the dead area of the central nozzle 24). For this reason, the cleaning device 10 can uniformly clean even if the object to be cleaned is stacked on the entire flat surface of the shelf 16, and the cleaning effect can be improved.

  In the present embodiment, the circuit section 36 provided on the rack 18 in communication with the corner nozzle 28 has the tubular column section 14. In other words, the pillar portion 14 is formed into a tubular shape and used for the circuit portion 36. The two pillars 14 on the front side communicate with each other upward, and the two pillars 14 on the rear side communicate with each other upward. Then, a corner nozzle 28 is provided in communication with the tubular pillar 14. In the present embodiment, the corner nozzle 28 is detachably provided on the pillar 14. According to this, when 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 different configuration from 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, a corner nozzle 28) of the rack 18 shown in FIG. FIG. 12 shows a state in which the pillar portion 14 of the rack 18 is cut.

  As shown in FIG. 12, also in the present embodiment, the central nozzle 24 is provided on the rack 18, and the cleaning liquid is discharged toward the planar central part 16 a of the shelf 16 in a circular discharge area 24 a in plan view. . The corner nozzle 28 is provided on the rack 18 around the discharge area 24a. Specifically, the corner nozzle 28 is provided on the pillar 14, and the cleaning liquid is discharged toward the planar corner 16 b of the shelf 16.

  In the present embodiment, the corner nozzle 28 is a shower nozzle that can radially discharge the cleaning liquid linearly (beam-like) from each of the plurality of discharge ports 26 formed in the pillar 14. The corner nozzle 28 is provided above each of the five shelves 16 (side of the basket 110 arranged on the shelves 16). As a result, the object to be cleaned 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 area) that cannot reach the shelf 16 in the maximum reaching discharge area 24b of the cleaning liquid by the central nozzle 24. For this reason, the cleaning device 10 can improve the effect of cleaning the object to be cleaned loaded on the shelf 16. In particular, since the corner nozzles 28 are provided at each of the four corners with respect to the shelf 16, the cleaning liquid can be discharged to the four plane corners 16b (the dead area of the central nozzle 24). For this reason, the cleaning device 10 can uniformly clean even if the object to be cleaned is stacked on the entire flat surface of the shelf 16, and the cleaning effect can be improved.

  In the present embodiment, the circuit section 36 provided on the rack 18 in communication with the corner nozzle 28 has the tubular column section 14. In other words, the pillar portion 14 is formed into a tubular shape and used for the circuit portion 36. The two pillars 14 on the front side communicate with each other upward, and the two pillars 14 on the rear side communicate with each other upward. Then, a corner nozzle 28 is provided in communication with the tubular pillar 14. In the present embodiment, the circuit portion 36 has a cap portion 46 that is detachably provided on the tubular pillar portion 14. According to this, with the cap part 46 removed, a jig such as a brush can be inserted into the inside of the tubular pillar part 14 to easily clean the inside.

(Embodiment 4)
In the fourth embodiment according to the present invention, the corner nozzle 28 provided on the shelf 16 instead of the pillar 14 of 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 detachable shelf 16 removed. FIG. 17 is a schematic perspective view of the detachable shelf 16 from above. 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 a 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 rectangular shelf portion 16 in a plan view (horizontal plane view) to form a square pillar-shaped skeleton structure. Specifically, the four pillars 14 extend (stand) in the vertical direction at respective positions of the four corners of the shelf 16 having a rectangular shape in plan view. The four pillars 14 are located at respective corners of the one-stage shelf 16 and hold each shelf 16. A plurality of (for example, four) shelves 16 (for example, shelves that are opened in a lattice shape with bones) are provided in parallel with each other in a region surrounded by these four pillars 14. Then, a plurality of objects to be cleaned are subdivided and loaded on the rack 18 using the baskets 110 (see FIG. 6 and the like) arranged on the shelf 16.

  In the present embodiment, three of the four shelves 16 except for the lowest one are detachable shelves 16. For this reason, the rack 18 has a beam portion 120 for connecting the front pillar portion 14 and the rear pillar portion 14 on both side surfaces (connected via the pipe 42 on the side face on the pipe 42 side). The detachable shelf 16 has a hook 122 for hooking and holding the beam 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 device 10 includes a central nozzle 24 and a corner nozzle 28 provided to be held on the rack 18. The central nozzle 24 has a configuration in which the cleaning liquid is discharged from a discharge area 24 a (see FIG. 6 and the like) having a circular shape in plan view toward the center 16 a of the flat surface of the shelf 16. In the present embodiment, the central nozzle 24 is provided below each of the four shelves 16 except for the lowermost one. As a result, the object to be cleaned loaded on the shelf 16 is washed by the cleaning liquid discharged from the lower side of the shelf 16. In addition, the cleaning liquid is discharged from the lower nozzle 72 (see FIG. 4 and the like) to the object to be cleaned stacked on the lowermost shelf 16 and is cleaned. Of course, the central nozzle 24 may be provided below the lowermost shelf 16.

  The corner nozzle 28 is provided on the rack 18 around the discharge area 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 on the shelf 16 so that the cleaning liquid is discharged to each of the four planar corners 16 b of the shelf 16. The corner nozzle 28 has a plurality of discharge ports 26 (see FIG. 19) that open toward the plane corner 16 b of the shelf 16 and are formed by piercing a bone 124 that constitutes the shelf 16. That is, the corner nozzle 28 is a shower nozzle capable of radially discharging the cleaning liquid from each of the plurality of discharge ports 26 in a linear (beam) manner.

  Further, the cleaning device 10 includes a circuit unit 36 provided on the rack 18 in communication with the corner nozzle 28. The circuit section 36 has an injection section 34 into which the cleaning liquid is injected, and the cleaning liquid flows from the injection section 34 to the corner nozzle 28. As a specific configuration, on one side of the rack 18, an injection portion 34 is provided so as to communicate with the tubular pillar portion 14. Further, a corner nozzle 28 is provided in communication with the tubular bone 124 of the shelf 16. In the lowermost shelf 16 fixedly provided to the pillar 14, the tubular pillar 14 and the tubular bone 124 are provided in direct communication with each other.

  On the other hand, in another shelf 16 detachably provided on the pillar portion 14, the tubular pillar portion 14 and the tubular bone portion 124 are provided so as to communicate with each other via the tubular beam portion 120. For this reason, the tubular pillar 14 and the tubular beam 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 attaching the detachable shelf 16, the supply port 120 a of the beam part 120 on the side to supply the cleaning liquid via the sealing member 126 and the injection port 124 a of the bone part 124 on the side to which the cleaning liquid is injected are provided. Align and communicate. When the detachable shelf 16 is removed, the inside of the tubular bone 124 of the shelf 16 can be easily cleaned.

  As described above, in the present embodiment, the circuit portion 36 includes the tubular pillar portion 14, the tubular beam portion 120, and the tubular bone portion 124 that forms the shelf 16. In other words, the pillar part 14, the beam part 120, and the bone part 124 of the shelf part 16 become tubular and used for the circuit part 36. The corner nozzles 28 provided in communication with the circuit portion 36 are flat corner portions 16b (blind spots) that cannot reach the shelf 16 in the maximum reaching discharge area 24b of the cleaning liquid by the central nozzle 24 (see FIG. 6 and the like). Area) can discharge the cleaning liquid.

  For this reason, the cleaning device 10 can improve the effect of cleaning the object to be cleaned loaded on the shelf 16. In particular, since the corner nozzles 28 are provided at each of the four corners with respect to the shelf 16, the cleaning liquid can be discharged to the four plane corners 16b (the dead area of the central nozzle 24). For this reason, the cleaning device 10 can uniformly clean even if the object to be cleaned is stacked on the entire flat surface of the shelf 16, and the cleaning effect can be improved.

  In the bone part 124 of the lowermost shelf 16, the discharge port 26 is provided on the upper side, and in the bone part 124 of the other removable shelf part 16, the upper side and the lower side (see FIGS. 17 and 18). A discharge port 26 is provided. In particular, by providing the corner nozzle 28 above the bone portion 124 of the shelf 16, the washing liquid can be discharged from directly below the article to be washed loaded on the shelf 16 via the basket 110. It can be further improved.

  As described above, the present invention has been specifically described based on the embodiments. However, the present invention is not limited to the above-described embodiments, and it is needless to say that various changes can be made without departing from the spirit of the present invention as follows. Nor.

  In the first to fourth embodiments, the case where the shelf of the rack has a rectangular shape (rectangular shape) in plan view has been described. However, the present invention is not limited to this, and the present invention can be applied to a case where the rack 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, a case has been described in which a rotatable rod-shaped shower nozzle is used as a central nozzle located in a circular discharge area in plan view. The present invention is not limited to this, and a shower nozzle having a circular shape in plan view may be used as the central nozzle.

Reference Signs List 10 cleaning device; 12 treatment tank; 12a opening;
14 pillar part; 16 shelf part; 16a central part of plane;
16b flat corner; 18 rack; 20 rotation axis;
22 outlet; 24 central nozzle; 24a discharge area;
24b maximum reaching discharge area; 26 discharge ports; 28 corner nozzle;
28a discharge area; 30 injection section; 32 circuit section;
34 injection section; 36 circuit section; 38 supply section;
40 supply part; 42, 44 tube; 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 tube; 68 circuit outside the tank;
70 upper nozzle; 72 lower nozzle; 74 discharge port;
76 discharge port; 78 water supply circuit section; 80 two-way valve;
82 Hot water supply circuit section; 84 Two-way valve; 86 Detergent supply circuit section;
88 two-way valve; 90 inclined surface; 92 pot portion;
94 heater section; 96 drain circuit section; 98 two-way valve;
100 ultrasonic oscillation section; 102 heated air supply section; 104 exhaust circuit section;
106 heater section; 108 fan section; 110 basket;
120 Beam part; 120a Supply port; 122 Hook claw;
124 bone part; 124a inlet; 126 sealing member.

Claims (8)

A processing tank,
A rack provided in the processing tank and having a rectangular shelf in plan view, and a column located at a corner of the shelf and holding the shelf,
A central nozzle that is provided on the rack and that discharges the cleaning liquid in a circular discharge area in a plan view toward the center of the shelf.
A corner nozzle provided on the rack around the discharge area having a circular shape in a plan view, and a cleaning liquid is discharged toward a plane corner of the shelf.
A first circuit unit provided on the rack in communication with the central nozzle and having a first injection unit into which a cleaning liquid is injected;
A second circuit unit provided on the rack in communication with the corner nozzle and having a second injection unit into which a cleaning liquid is injected;
Control to execute at least one of the first function for discharging the cleaning liquid from the central nozzle and the second function for discharging the cleaning liquid from the corner nozzle, or to alternately execute the first function and the second function Department and
A pump provided outside the processing tank and for delivering 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, A plurality of pipes, and an extra-tank circuit section having:
A first pipe branching from the pump and communicating with each of the first inlet and the second inlet; and a central pipe via the first outlet and the first circuit unit. A second pipe communicating with the second nozzle, a third pipe communicating the second outlet with the corner nozzle via the second circuit portion, and a middle of the third outlet and the second pipe. And a fourth tube communicating with the part.
The flow path resistance of the fourth pipe is higher than the flow resistance of the first, second and third pipes,
The cleaning device according to claim 1, wherein the control unit controls the opening and closing of the two-way valve and the three-way valve when executing the first function and the second function . A first supply unit that is provided in the processing tank and is configured to supply a cleaning liquid to the first circuit unit in a state where the cleaning liquid is communicated with the first injection unit;
A second supply unit provided in the processing tank and configured to supply a cleaning liquid to the second circuit unit in a state in which the cleaning liquid is communicated with the second injection unit;
The first supply unit is a hollow inflatable body, and is communicated with the first injection unit in a state where the first supply unit is expanded by the inflow of the cleaning liquid,
The second supply unit, the cleaning device according to claim 1, characterized in that a hollow inflatable body communicates with said second injection unit in a state of being inflated by the inflow of the cleaning liquid. Cleaning apparatus according to claim 1 or 2, wherein said central portion nozzle is detachably provided in the first circuit portion. The cleaning device according to any one of claims 1 to 3 , wherein the corner nozzle is detachably provided in the second circuit unit. The cleaning device according to any one of claims 1 to 4 , wherein the second circuit portion has a cap portion detachably provided by the tubular pillar portion. The cleaning apparatus according to any one of claims 1 to 5 , further comprising an ultrasonic oscillation unit provided in the processing tank. The cleaning device according to any one of claims 1 to 6 , wherein the corner nozzle is provided in communication with the tubular column. The cleaning device according to any one of claims 1 to 7 , wherein the corner nozzle is provided so as to communicate with a tubular bone forming the shelf.

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