JP6466808B2 - Tray stand - Google Patents

Description

  The present invention relates to a tray stand for leaning a tray on which a medical instrument or the like is placed.

  Japanese Patent Application Laid-Open No. 2004-228561 describes a medical instrument cleaning machine that cleans a medical instrument that has been put into a cleaning chamber by ejecting warm water in the cleaning chamber. The cleaning machine of the document performs a drying process of introducing air into the cleaning chamber and drying the medical instrument after the cleaning process of cleaning the medical instrument.

JP 2005-13511 A

  In the case of cleaning a thin tray on which a medical instrument is placed using a medical instrument washer, a tray stand that can stand a large number of trays side by side is used. Here, an example of a tray to be cleaned and a conventional tray stand will be described with reference to FIGS. 6, 11, and 12. 6 is an explanatory view of the tray, FIGS. 6A to 6D are a plan view, a front view, a bottom view, and a side view of the tray, and FIG. 6E is a cross-sectional view (FIG. 6A). Is a sectional view taken on line D-D of FIG. 11 is an explanatory view of a conventional tray stand, FIG. 11 (a) is a plan view of the tray stand, FIG. 11 (b) is a side view, and FIG. 11 (c) is a front view. . FIGS. 12A and 12B are explanatory views showing a state in which the tray is set up on a conventional tray stand. FIG. 12A is a side view, FIG. 12B is a front view, and FIG. 12 (a) is a partially enlarged view of region E, and FIG. 12 (d) is a partially enlarged view of region F of FIG. 12 (a).

  As shown in FIG. 6, the tray 100 to be cleaned is rectangular as a whole, and includes a recess 110 for placing a dental handpiece and the like, and an edge 120 protruding from the outer peripheral edge of the recess 110. The recess 110 has a rectangular shape, and the inner surface of the recess 110 includes a flat bottom surface 111 and an inclined surface 112 that rises from the outer peripheral edge of the bottom surface 111 toward the edge 120 (see FIG. 6E). On the other hand, the edge portion 120 includes a flange portion 121 that protrudes from the upper end of the inclined surface 112, and a folded portion 122 that is bent substantially at a right angle and protrudes backward is formed on two sides in the longitudinal direction of the flange portion 121. Has been. The folded portion 122 is not formed at the corner of the tray 100.

  As shown in FIGS. 11A to 11C, the conventional tray stand 900 includes a plurality of partition members 920 arranged at regular intervals, a rectangular upper frame 910 that supports the plurality of partition members 920, and a partition. Two support members 931 and 932 fixed to the lower end of the member 920 are provided. The plurality of partition members 920 are inclined at the same inclination angle θs with respect to the vertical direction Z (that is, the vertical direction). As shown in FIG. 12A, the conventional tray stand 900 leans the tray 100 in a posture inclined in the thickness direction L (see FIG. 6E). As shown in FIG. 12B, since the lower end of the tray 100 is supported by two support members 931 and 932 positioned at the same height, the tray 100 has a horizontal posture in the width direction.

However, since the concave portion 110 is formed in the tray 100 and the edge portion 120 has a folded shape, when the tray 100 stands in the posture as shown in FIG. 12, the tray 100 is cleaned. In addition, there is a risk that cleaning liquid may accumulate in these locations. For example, as shown in FIG. 12C, at the lower end edge of the tray 100, the edge 120 of the tray 100 has an upwardly concave shape. On the other hand, as shown in FIG. 12D, at the upper edge of the tray 100, the liquid does not accumulate if the inclined surface 112 of the tray 100 is inclined downward. However, when the inclination angle θt (see FIG. 6E) of the inclined surface 112 with respect to the thickness direction L of the tray 100 is smaller than the inclination angle θs of the partition member 920, the inclined surface 112 in FIG. The angle is indicated by a virtual line G. Therefore, the inclined surface 112 and the flange portion 121 have an upward concave shape, and water may accumulate here.
Alternatively, when the tray 100 is stood upside down, the lower edge of the concave portion 110 has an upward concave shape, and cleaning liquid may accumulate.

  When the cleaning liquid is accumulated in the tray 100, it takes a long time to dry completely, so that the drying efficiency is lowered. Further, if the drying process is finished in a state where the liquid is not completely dried, the tray stand 900 is tilted when the tray 100 is removed from the washing machine together with the tray stand 900, and the liquid accumulated in the tray 100 begins to spill out. . Therefore, the dried part may get wet again.

  In view of the above, it is an object of the present invention to provide a tray stand that is less likely to accumulate liquid in the tray when the tray is stood and washed with liquid.

In order to solve the above-described problems, the present invention is a tray stand that leans a rectangular tray, and is adjacent to a plurality of partition members arranged at regular intervals and a horizontal frame that supports the plurality of partition members. A first support member and a second support member that support the tray that is erected between the partition members at two points from below; each of the plurality of partition members is arranged in an arrangement direction of the plurality of partition members The first contact point where the first support member and the tray are in contact with each other, and the second contact point where the second support member and the tray are in contact with each other are located at different heights , In the case where the tray has a concave portion on which an article is placed and an edge portion protruding from the outer peripheral edge of the concave portion, and has an inclined surface that rises from the outer peripheral edge of the bottom surface of the concave portion toward the edge portion, Tray thickness direction Said than the inclination angle of the inclined surface [theta] t, wherein the direction of the inclination angle of the partition member with respect to the vertical direction θs is small against.

According to the present invention, the partition member on which the tray is leaned is inclined in the arrangement direction, and the first contact point and the second contact point that support the tray at two points from the lower side are located at different heights. Therefore, the tray can be tilted so as to be tilted in the thickness direction, and can be tilted so as to lift one side end. In this way, when the tray is tilted in two directions, the edge of the tray tilts up and down instead of being horizontal, so even if the liquid flows into the folded portion provided at the edge of the tray, the liquid will enter the corner of the tray. It flows down. Therefore, there is little possibility that the liquid will accumulate in the folded portion. Further, according to the present invention, the tray has a concave portion on which an article is placed and an edge protruding from the outer peripheral edge of the concave portion, and includes an inclined surface that rises from the outer peripheral edge of the bottom surface of the concave portion toward the edge. In this case, θs which is the inclination angle of the partition member with respect to the vertical direction is smaller than θt which is the inclination angle of the inclined surface with respect to the thickness direction of the tray. Therefore, when the tray is stood against the partition member, the inclined surface faces downward, so that liquid can be prevented from accumulating in the concave portion of the tray.

  In the present invention, the partition member includes a lower frame and a side frame that rises from an end of the lower frame, and the first support member is a rod-shaped member that intersects the plurality of lower frames, and the second support The member is preferably a rod-shaped member that intersects the plurality of side frames. If it does in this way, a bar-shaped member should just be attached so that the lower end (lower frame) of a plurality of partition members may intersect, and a bar-shaped member may be attached so that the side ends (side frames) of a plurality of partition members may intersect. Therefore, the tray can be stood with a simple structure and inclined in two directions.

  In the present invention, it is desirable that the second support member is a cylindrical member inclined up and down. If it does in this way, when a cylinder member is used as the 2nd support member, it can prevent that a liquid accumulates in the inside.

  In the present invention, a cleaning chamber, a cleaning mechanism that ejects liquid in the cleaning chamber and cleans an object to be cleaned, and air is supplied into the cleaning chamber after cleaning by the cleaning mechanism. When the object to be cleaned is a tray, the tray is leaned between the adjacent partition members when the object to be cleaned is a tray. It is desirable that it can be placed in the cleaning chamber in a state. If it does in this way, when washing a tray with a washing machine, there is little possibility that drying efficiency will fall. Further, when the tray is taken out of the cleaning chamber together with the tray stand after the drying process, there is little possibility that the liquid accumulated in the tray will flow down and the dried part will get wet.

According to the present invention, the tray can be tilted in two directions. Accordingly, the edge of the tray is tilted up and down without being horizontal, so that even if the liquid flows into the folded portion provided at the edge of the tray, the liquid flows down toward the corner of the tray. Therefore, there is little possibility that the liquid will accumulate in the folded portion. Further, when the tray has a concave portion for placing an article and an edge protruding from the outer peripheral edge of the concave portion, and includes an inclined surface rising from the outer peripheral edge of the bottom surface of the concave portion toward the edge, the partition member Since the inclined surface faces downward when the tray is stood against the liquid, it is possible to prevent liquid from being accumulated in the concave portion of the tray.

It is the front view and side view of a washing machine. It is a front view of the washing machine in the state where the open / close door is opened. It is a rear view of a washing machine in the state where a back cover was removed. It is sectional drawing in the AA line of FIG. 3, and sectional drawing in the BB line. It is explanatory drawing which shows the condition which arrange | positions the medical instrument of washing | cleaning object in a washing room. It is explanatory drawing of a tray. It is explanatory drawing of the tray stand to which this invention is applied. It is explanatory drawing which shows the state which stood the tray on the tray stand of FIG. It is explanatory drawing of the tray stand of another form to which this invention is applied. It is explanatory drawing of the tray stand of another form to which this invention is applied. It is explanatory drawing of the conventional tray stand. It is explanatory drawing which shows the state which stood the tray on the tray stand of FIG.

  Hereinafter, a tray stand to which the present invention is applied, a washing machine for washing a tray using the tray stand, and a washing operation thereof will be described with reference to the drawings.

(washing machine)
Fig.1 (a) is a front view of a washing machine, and FIG.1 (b) is a side view of a washing machine. FIG. 2 is a front view of the washing machine with the open / close door opened. The washing machine cleans and dries medical instruments such as dental handpieces and trays on which dental handpieces are placed. As shown in FIG. 1, the washing machine 1 includes a rectangular parallelepiped casing 2 as a whole. An opening / closing door 4 that opens and closes a cleaning chamber 3 (see FIG. 2) partitioned in the housing 2 is attached to an upper portion of the front surface of the housing 2. Hereinafter, the three directions orthogonal to each other will be described as the front-rear direction X, the width direction Y, and the up-down direction Z.

  As shown in FIG. 1, the open / close door 4 is disposed in a closed position in a standing posture. An operation panel 5 is provided at the upper end portion of the open / close door 4 arranged at the closed position. As shown in FIG. 2, when the opening / closing door 4 in the closed position is rotated forward to be horizontal, the cleaning chamber 3 partitioned in the housing 2 is opened.

  As shown in FIG. 1, a rack 6 is attached to the side surface of the housing 2. The rack 6 is equipped with a detergent tank 7 and a finishing agent tank 8. A detergent introduction pipe 9 and a finish introduction pipe 10 are connected to each of the detergent tank 7 and the finish agent tank 8. The distal ends of the detergent introduction tube 9 and the finishing agent introduction tube 10 are drawn into the inside from the side surface of the housing 2. A hot water supply pipe 11, a water supply pipe 12, and a drain pipe 13 are connected to the side surface of the housing 2.

  FIG. 3 is a rear view of the washing machine 1 with the back cover 14 constituting the housing 2 removed. 4A is a longitudinal sectional view of the cleaning machine 1 taken along the line AA of FIG. 3, and FIG. 4B is a longitudinal sectional view of the cleaning machine 1 taken along the line BB of FIG. As shown in FIGS. 3 and 4, the inside of the housing 2 is divided forward and backward by a vertical partition plate 15 extending in the vertical direction Z. Further, the interior of the housing 2 is partially partitioned vertically by a horizontal partition plate 16 extending forward from the lower end of the vertical partition plate 15. As shown in FIG. 4, the compartment on the front side of the vertical partition plate 15 and the upper side of the horizontal partition plate 16 is the cleaning chamber 3. As shown in FIGS. 3 and 4, the rear compartment of the vertical partition plate 15 is a piping chamber 17. A heating chamber 18 and a machine chamber 19 are provided in a section below the horizontal partition plate 16.

  As shown in FIG. 2, a net-like first rack 21 and a second rack 22 for housing medical instruments are arranged in the cleaning chamber 3. The first rack 21 and the second rack 22 are made of stainless steel. The first rack 21 is located below the second rack 22. The first rack 21 is supported by a pair of first rails (not shown) provided at the same height position on the left and right side wall surfaces of the cleaning chamber 3. The pair of first rails extends in the front-rear direction X. Wheels 23 running on the first rail are attached to both ends of the first rack 21 in the width direction Y, respectively. The first rack 21 is movable in the front-rear direction X along the pair of first rails. The second rack 22 is supported above the pair of first rails by a pair of second rails 24 provided at the same height position on the left and right side wall surfaces of the cleaning chamber 3. The pair of second rails 24 extend in the front-rear direction X, and the second rack 22 is movable along the pair of second rails 24 in the front-rear direction X. The medical instrument is placed on the first rack 21 and the second rack 22 and cleaned.

  FIG. 5 is an explanatory view showing a situation in which a medical instrument to be cleaned is placed in the cleaning chamber 3. FIG. 5A shows a first rack 21 and a first rack 21 on which the medical instrument is placed on the cleaning machine 1 with the open / close door 4 opened. It is a side view which shows the state in the middle of putting in / out 2 racks. FIG. 5B is a front view showing a state in which the first rack 21 and the second rack 22 on which medical instruments are placed are arranged in the cleaning chamber 3. As shown in FIG. 5, a tray stand 200 on which the tray 100 is leaned is placed on the first rack 21 disposed in the lower space of the cleaning chamber 3. The tray stand 200 can lean a large number of trays 100 in two directions. The detailed configuration of the tray stand 200 will be described later.

  In the second rack disposed in the upper space of the cleaning chamber 3, a mesh basket 300 containing a dental handpiece and the like is disposed. Note that the tray stand 200 and the mesh basket 300 may be placed on either the first rack 21 or the second rack 22. As shown in FIG. 5A, when the opening / closing door 4 is tilted forward, the first rail (not shown) in the cleaning chamber 3 and the opening / closing door 4 are positioned on the same plane. Therefore, the first rack 21 with the wheels 23 can be pulled out onto the door 4. Further, the second rack 22 can be slid in and out along the second rail 24.

As shown in FIG. 2, two air supply ports 25 are provided on the right side in the width direction Y of the lower end portion of the rear wall surface (vertical partition plate 15) of the cleaning chamber 3. The two air supply ports 25 are located below the first rack 21. An air discharge port 26 is provided on the left side in the width direction Y of the upper end portion of the rear wall surface of the cleaning chamber 3. The air outlet 26 is covered with a rectangular box-shaped inner cover 27 from the front. The inner cover 27 includes a cover opening 28 in a lower plate portion facing downward. Further, the inner cover 27 includes a plurality of rectangular openings 29 on the left side portion of the facing plate that faces the air discharge port 26. The cleaning chamber 3 and the air outlet 26 communicate with each other through the cover opening 28 and the plurality of rectangular openings 29.

  As shown in FIG. 4A, a first liquid ejector 31, a second liquid ejector 32, and a third liquid ejector 33 are disposed in the cleaning chamber 3. The first liquid ejector 31 is disposed below the first rack 21. The first liquid ejector 31 is rotatably supported by a first liquid supply pipe 35 extending horizontally in the front-rear direction X at a position close to the bottom surface of the cleaning chamber 3 and a front end portion of the first liquid supply pipe 35. A rotating nozzle 36 is provided. The first rotating nozzle 36 includes a plurality of nozzles 37 on the upper portion of the outer peripheral surface thereof. The rear end opening of the first liquid supply pipe 35 is connected to a first liquid supply port 38 provided at the center of the lower end portion of the rear wall surface (vertical partition plate 15) of the cleaning chamber 3. When a liquid such as water is supplied through the first liquid supply port 38 and the first liquid supply pipe 35, the first rotary nozzle 36 ejects the liquid upward from each nozzle, while the upper side of the first liquid supply pipe 35. To rotate horizontally.

  The second liquid ejector 32 is configured integrally with the second rack 22 at the lower portion of the second rack 22. The second liquid ejector includes a second liquid supply pipe 41 that extends horizontally in the front-rear direction X, and a second rotary nozzle 42 that is rotatably supported by the front end portion of the second liquid supply pipe 41. The second rotating nozzle 42 includes a plurality of nozzles 43 on the upper part and the lower part of the outer peripheral surface thereof. The rear end opening of the second liquid supply pipe 41 is detachably connected to a second liquid supply port 44 provided at the center of the rear wall surface of the cleaning chamber 3. When a liquid such as water is supplied through the second liquid supply port 44 and the second liquid supply pipe 41, the second rotary nozzle 42 ejects the liquid from each nozzle 43 in the vertical direction Z while the second liquid supply pipe. Rotate horizontally under 41.

  The third liquid ejector 33 is disposed above the second rack 22. The third liquid ejector 33 is rotatably supported by a third liquid supply pipe 46 extending horizontally in the front-rear direction X at a position close to the center of the ceiling of the cleaning chamber 3 and a front end portion of the third liquid supply pipe 46. A three-turn nozzle 47 is provided. The third rotating nozzle 47 includes a plurality of nozzles 48 at the lower portion of the outer peripheral surface thereof. The rear end opening of the third liquid supply pipe 46 is connected to a liquid circulation pipe 63 extending in the vertical direction Z through the pipe chamber 17. When a liquid such as water is supplied through the third liquid supply pipe 46, the third rotating nozzle 47 rotates in the horizontal direction below the third liquid supply pipe while ejecting the liquid downward from each nozzle 48. .

  As shown in FIG. 4A, a heating chamber 18 is provided below the cleaning chamber 3 with the horizontal partition plate 16 interposed therebetween. The heating chamber 18 extends in the front-rear direction X at the central portion in the width direction Y of the cleaning chamber 3. A liquid heating heater 51 is installed in the heating chamber 18. A bottom plate 52 that defines the bottom of the heating chamber 18 is inclined downward toward the front. A circular recess 53 is provided in front of the heating chamber 18. A strainer 54 is detachably attached to the opening of the circular recess 53 from above. Here, the hot water supply pipe 11 and the water supply pipe 12 are connected to the lower part of the heating chamber 18 or the cleaning chamber 3.

  A rectangular rear opening 55 is formed at a position overlapping the heating chamber 18 at the rear end portion of the horizontal partition plate 16. The heating chamber 18 and the cleaning chamber 3 communicate with each other through the rear opening 55. The rear opening 55 is covered from above by a lid member having a plurality of slits or nets. A rectangular front opening 56 is formed at the front end portion of the horizontal partition plate 16 at a position overlapping the circular recess 53 when viewed from above. The front opening 56 is detachably covered from above by a lid member having a plurality of slits or nets.

In the machine chamber 19, a circulation pump 62 is disposed below the heating chamber 18. The circulation pump 62 is connected to the circular recess 53 through the water absorption pipe 60. The circulation pump 62 is connected to the first liquid supply port 38, the second liquid supply port 44, and the third liquid supply via a liquid circulation pipe 63 that extends in the vertical direction Z on the rear side of the vertical partition plate 15 in the pipe chamber 17. A pipe 46 is connected. The circulation pump 62 pumps the cleaning liquid sucked from the circular recess 53 to the first liquid supply port 38, the second liquid supply port 44, and the third liquid supply pipe 46. That is, the circulation pump 62 circulates the cleaning liquid in the cleaning machine 1. Here, the water absorption pipe 60, the circulation pump 62, the liquid circulation pipe 63, and the first to third liquid ejectors 31 to 33 eject the water in the cleaning chamber 3 and are put into the cleaning chamber 3. A cleaning mechanism 64 for cleaning the instrument is configured.

  A drainage pump 66 is disposed in the machine room 19. The drain pump 66 is connected to the circular recess 53 via the in-apparatus drain pipe 61. The drain side of the drain pump 66 is connected to the drain pipe 13. Here, the circular recess 53, the in-apparatus drain pipe 61, and the drain pipe 13 constitute a drain path 67 that discharges the water in the cleaning chamber 3 to the outside. The drain pump 66 sucks the cleaning liquid that flows out of the cleaning chamber 3 and the heating chamber 18 and accumulates in the circular recess 53 and discharges the cleaning liquid to the outside through the in-device drain pipe 61 and the drain pipe 13.

  Further, a hot air blower 70 is disposed in the machine room 19. As shown in FIG. 4B, the hot air blower 70 is provided with a high-efficiency particulate air (HEPA) filter 71, a blower fan 72, and an air heating heater 73 from the upstream side to the downstream side in the air flow direction. Prepare in order. The hot air blower 70 is connected to the air supply port 25 of the cleaning chamber 3 through two blower pipes 74 disposed in the piping chamber 17. Each of the two air pipes 74 extends upward from the hot air blower 70 and then extends downward to suppress the liquid from flowing into the hot air blower 70 from the cleaning chamber 3, and its lower end. A portion is connected to the air supply port 25. The hot air blower 70 heats the air and sends it into the cleaning chamber 3. The hot air blower 70 and the blower pipe 74 constitute a blower mechanism 75.

  As shown in FIG. 3, an exhaust cooling mechanism 78 is installed in the piping chamber 17. The exhaust cooling mechanism 78 cools the exhaust discharged to the outside from the cleaning chamber 3 through the air discharge port 26. The exhaust cooling mechanism 78 includes a condensing tank 81 having a connection port 79 connected to the air discharge port 26 and an exhaust port 80 communicating with the connection port 79, a water spray nozzle 82 provided in the condensing tank 81, and a water supply tank 83. The water supply tank 83 is connected to the water supply pipe 12, and the water supplied from the water supply pipe 12 is supplied to the water spray nozzle 82 via the water supply tank 83. A valve mechanism 84 is provided between the water supply pipe 12 and the water supply tank 83. The water supply pipe 12, the water supply tank 83, and the valve mechanism 84 constitute a water supply mechanism 85 that supplies water to the watering nozzle 82.

(Control system)
The control system of the cleaning machine 1 is mainly configured by a control unit (not shown) including a CPU, a ROM, a RAM, and the like. An operation panel 5 and a sensor mechanism (not shown) are connected to the input side of the control unit. The sensor mechanism includes a temperature sensor that detects the room temperature of the cleaning chamber 3, a liquid temperature sensor that detects the temperature of hot water and hot water, an overflow sensor of the exhaust cooling mechanism 78, and the amount of detergent stored in the detergent tank 7. A detergent liquid level sensor for detecting, a finishing liquid level sensor for detecting the liquid amount of the finishing agent stored in the finishing agent tank 8, and the like are included. A liquid heating heater 51, a circulation pump 62, a drainage pump 66, a blower fan 72 of a hot air blower 70, an air heating heater 73, a valve mechanism 84, and the like are connected to the output side of the control unit. Yes. When the operation panel 5 is operated, the control unit performs a cleaning operation according to a program stored and held in a ROM or the like. The control unit drives and controls the liquid warming heater 51, the circulation pump 62, the drainage pump 66, the air warming heater 73 of the warm air blower 70, the blower fan 72, and the valve mechanism 84 to perform a cleaning operation.

(Cleaning operation)
When cleaning the medical instrument, the first rack 21 and the second rack 22 on which the medical instrument is placed are arranged in the cleaning chamber 3, the open / close door 4 is closed, and the operation panel 5 is operated. When the operation panel 5 is operated, the cleaning machine 1 performs a preliminary cleaning process, a main cleaning process, a rinsing process, a hot water disinfection process, and a drying process as cleaning operations.

  In the pre-cleaning step, the medical device is cleaned by ejecting water from the first liquid ejector 31, the second liquid ejector 32, and the third liquid ejector 33 in the cleaning chamber 3. After the preliminary cleaning, the drain pump 66 is driven to discharge water to the outside. Next, in this cleaning process, the detergent is introduced into the liquid circulation pipe 63 from the detergent tank 7 through the detergent introduction pipe 9, and a cleaning liquid in which the detergent is added to water or warm water is ejected in the cleaning chamber 3 to perform medical treatment. Clean utensils. The detergent is an enzymatic detergent. After the main cleaning, the cleaning liquid is discharged to the outside. Subsequently, in the rinsing process, the medical device is rinsed by performing the same operation as the pre-cleaning process using water or hot water. After the rinsing process is completed, water is discharged to the outside. In the hot water disinfection step (hot water washing step), the medical device is washed with a finishing liquid obtained by adding a finishing agent to hot water. In the drying process, the hot air blower 70 is driven, and air having a temperature lower than the temperature of hot water is introduced into the cleaning chamber 3 from the air supply port 25 to dry the medical instrument. When the drying process ends, the cleaning operation ends. Thereby, the cleaning of the medical instrument put into the cleaning chamber 3 is completed.

(Tray stand)
7 is an explanatory view of a tray stand 200 to which the present invention is applied. FIG. 7 (a) is a plan view of the tray stand, FIG. 7 (b) is a side view, and FIG. 7 (c) is a front view. It is. As described above, the tray 100 to be cleaned has the shape shown in FIG. That is, the tray 100 includes a concave portion 110 and an edge portion 120 protruding from the outer peripheral edge of the concave portion 110, and the edge portion 120 includes a flange portion 121 and a folded portion 122. Further, the inner surface of the recess 110 is constituted by a bottom surface 111 and an inclined surface 112. As shown in FIG. 6E, the inclination angle of the inclined surface 112 with respect to the thickness direction L of the tray 100 is θt.

  A front-rear direction X, a width direction Y, and a vertical direction Z shown in FIG. 7 are directions when the tray stand 200 is disposed in the cleaning chamber 3 (see FIG. 5). The tray stand 200 is formed by assembling rod-shaped members having a circular cross section made of a material such as stainless steel. The tray stand 200 includes a rectangular upper frame 210, a plurality of partition members 220 fixed to the upper frame 210, and two rod-shaped first support members 231 and 232 fixed to the plurality of partition members 220 from below. And a single bar-shaped second support member 233 fixed to the plurality of partition members 220 from the side.

  The upper frame 210 includes a pair of horizontal frames 211 and 212 extending in the longitudinal direction, and a pair of vertical frames 213 and 214 that connect ends of the horizontal frames 211 and 212. The pair of horizontal frames 211 and 212 are arranged in parallel with an interval larger than the longitudinal width H of the tray 100 (see FIG. 6A). Between the horizontal frames 211 and 212, a plurality of partition members 220 are arranged in the front-rear direction X at regular intervals. Both ends of the plurality of partition members 220 in the width direction Y are fixed to the horizontal frames 211 and 212, and are supported by the horizontal frames 211 and 212.

  The partition member 220 includes a lower frame 221, a pair of side frames 222 and 223 that rise from both ends of the lower frame 221, and arm portions 224 and 225 that extend outward in the width direction Y from the upper ends of the side frames 222 and 223. Since the distance between the side frames 222 and 223 is narrower than the distance between the horizontal frames 211 and 212, the arm portions 224 and 225 extend outward in the width direction Y toward the horizontal frames 211 and 212. The tip of the arm part 224 is joined to the horizontal frame 211, and the tip of the arm part 225 is joined to the horizontal frame 212.

The partition member 220 has a shape in which the lower frame 221, the side frames 222, 223, and the arm portions 224, 225 are positioned in the same plane, and is inclined in the front-rear direction X about the horizontal lower frame 221. The front-rear direction X is the arrangement direction of the partition members 220. As shown in FIG. 7B, the inclination angle θs of the partition member 220 with respect to the vertical direction Z (that is, the vertical direction) is the amount of positional deviation d between the upper and lower ends of the partition member 220. 7 (a)). Therefore, as shown in FIG. 7A, when the tray stand 200 is viewed from above, the upper and lower ends (that is, the arm portions 224 and 225 and the lower frame 221) of the adjacent partition members 220 overlap each other.

  The inclination angle θs of the partition member 220 is smaller than the inclination angle θt of the inclined surface 112 with respect to the thickness direction L of the tray 100 described above. With such an angle, the tray 100 is turned upside down, and as a result, even if the concave portion 110 of the tray 100 faces upward, the inclined surface 112 becomes a surface inclined downward. Therefore, it is possible to prevent the liquid that has flowed into the concave portion 110 during cleaning from collecting at the corner where the bottom surface 111 and the inclined surface 112 are connected.

  Here, since the arrangement interval d (see FIG. 7A) of the partition members 220 is larger than the thickness of the tray 100, when the tray 100 is leaned between the partition members 220, the inclination of the tray 100 with respect to the vertical direction Z is inclined. It is assumed that the angle is equal to or greater than the inclination angle θt of the partition member 220. The maximum value of the inclination angle of the tray 100 can be calculated based on the inclination angle θs of the partition member 220, the thickness of the tray 100, the arrangement interval d of the partition members 220, and the like. Therefore, the shape of the tray stand 200 can be set so that the inclination angle θt of the inclined surface 112 is smaller than the maximum value of the inclination angle of the tray 100.

  The first support members 231 and 232 extend below the plurality of lower frames 221 in a direction orthogonal to the lower frames 221, and are joined to the lower frames 221. The first support members 231 and 232 are positioned in the vicinity of the corner where the lower frame 221 and the side frames 222 and 223 are connected, and are disposed symmetrically with respect to the center in the width direction Y of the lower frame 221. The first support members 231 and 232 are rod-shaped members having a circular cross section that is thicker than the second support member 233. The first support members 231 and 232 function as legs of the tray stand 200 when the tray stand 200 is placed on a work table or in a rack. On the other hand, the second support member 233 is disposed inside the side frame 222 in the width direction Y. The second support member 233 extends in a direction orthogonal to the plurality of side frames 222 and is joined to each side frame 222.

  8A and 8B are explanatory views showing a state where the tray 100 is set up on the tray stand 200, FIG. 8A is a side view, and FIG. 8B is a front view. The trays 100 are arranged one by one between the adjacent partition members 220 in a posture in which the longitudinal direction faces the width direction Y. As shown in FIG. 8A, since the partition member 220 is inclined in the front-rear direction X, the tray 100 is also inclined in the front-rear direction X. The upper end side of the tray 100 is supported in contact with the arm portions 224 and 225 of the partition member 220. On the other hand, as shown in FIG. 8B, the lower end of the tray 100 is supported from the lower side at two points by a contact point P2 with the second support member 233 and a contact point P1 with the first support member 231. Is done. Since the second support member 233 is located above the first support member 231 and the contact point P2 is located above the contact point P1, the tray 100 lifts one end in the width direction Y above the other end. Tilt in the direction.

  Thus, when the tray 100 is stood on the tray stand 200, the tray 100 is tilted in the front-rear direction X, so that the tray 100 can be tilted in the thickness direction L. Further, the tray 100 is inclined in a direction in which one end in the width direction Y is lifted from the other end. As described above, when the tray 100 is tilted in two directions, the concave portion 110 formed in the tray 100 can be directed downward, so that there is little possibility that the cleaning liquid accumulates in the concave portion 110. Further, since the edge 120 of the tray 100 does not become horizontal but tilts up and down, even if the liquid flows into the folded portion 122 provided at the edge 120 of the tray 100, the liquid is directed toward the corner of the tray 100. Flowing. And since the folding | returning part 122 is not provided in the corner | angular part of the tray 100, a liquid flows outside outside without accumulating in a corner | angular part. Therefore, there is little possibility that the liquid will accumulate in the folded portion 122.

In the above embodiment, a structure in which the tray 100 is supported at two points by one rod-shaped second support member 233 and another rod-shaped first support member 231 is realized. The form of the support member supported by the points is not limited to this, and another form of support member may be used. For example, the first support member 231 and the second support member 233 may have a plate shape instead of a rod shape, or may be divided into a plurality instead of one.

  9 and 10 are explanatory views of another form of tray stand to which the present invention is applied. First, the form shown in FIG. 9 will be described. FIG. 9A is a side view of the tray stand, and FIG. 9B is a front view. The tray stand 200 </ b> A includes an upper frame 210, a partition member 220, and first support members 231 and 232. These structures are the same as the said form. On the other hand, the second support member 233A has a cylindrical shape and is disposed so as to be inclined up and down. In the case where a cylindrical pipe material is used as the second support member 233A, it is possible to prevent liquid from accumulating inside the pipe material by inclining the second support member 233A in this way.

  Next, the form shown in FIG. 10 will be described. 10A is a plan view of the tray stand, FIG. 10B is a side view, and FIG. 10C is a front view. The tray stand 200B includes an upper frame 210, a partition member 220, and first support members 231 and 232. These structures are the same as the said form. On the other hand, the tray stand 200B includes a second support member 233B disposed at a corner where the lower frame 221 and the side frame 222 are connected, and a first support member disposed at a corner where the lower frame 221 and the side frame 223 are connected. 234. In this embodiment, since the second support member 233B is thicker than the first support member 234, the contact point P2 between the second support member 233B and the tray 100 is greater than the contact point P1 between the first support member 234 and the tray 100. Located above. Therefore, the tray 100 can be tilted in two directions.

DESCRIPTION OF SYMBOLS 1 ... Washing machine, 2 ... Housing, 3 ... Cleaning room, 4 ... Open / close door, 5 ... Operation panel, 6 ... Rack, 7 ... Detergent tank, 8 ... Finishing agent tank, 9 ... Detergent introduction pipe, 10 ... Finishing agent Introduction pipe, 11 ... Warm water supply pipe, 12 ... Water supply pipe, 13 ... Drain pipe, 14 ... Back cover, 15 ... Vertical partition plate, 16 ... Horizontal partition plate, 17 ... Piping chamber, 18 ... Heating chamber, 19 ... Machine room, 21 ... 1st rack, 22 ... 2nd rack, 23 ... Wheel, 24 ... 2nd rail, 25 ... Air supply port, 26 ... Air exhaust port, 27 ... Inner cover, 28 ... Cover opening, 29 ... Rectangular opening, 31 ... first liquid ejector, 32 ... second liquid ejector, 33 ... third liquid ejector, 35 ... first liquid supply pipe, 36 ... first rotating nozzle, 37 ... nozzle, 38 ... first 1 liquid supply port, 41 ... second liquid supply pipe, 42 ... second rotating nozzle, 43 ... nozzle, 44 ... second liquid supply Mouth, 46 ... third liquid supply pipe, 47 ... third rotating nozzle, 48 ... nozzle, 51 ... heater for liquid heating, 52 ... bottom plate, 53 ... circular recess, 54 ... strainer, 55 ... rear opening, 56 DESCRIPTION OF SYMBOLS ... Front side opening part, 60 ... Water absorption pipe, 61 ... Drain pipe in apparatus, 62 ... Circulation pump, 63 ... Pipe for liquid circulation, 64 ... Cleaning mechanism, 66 ... Drain pump, 67 ... Drainage path, 70 ... Hot air blower 71 ... HEPA filter, 72 ... Blower fan, 73 ... Air heater, 74 ... Blower pipe, 75 ... Blower mechanism, 78 ... Exhaust cooling mechanism, 79 ... Connection port, 80 ... Exhaust port, 81 ... Condensation tank, 82 ... Water spray nozzle, 83 ... Water supply tank, 84 ... Valve mechanism, 85 ... Water supply mechanism, 100 ... Tray, 110 ... Recess, 111 ... Bottom surface, 112 ... Inclined surface, 120 ... Edge, 121 ... Flange, 122 ... Folding Part, 20 , 200A, 200B ... tray stand, 210 ... upper frame, 211, 212 ... horizontal frame, 213, 214 ... vertical frame, 220 ... partition member, 221 ... lower frame, 222, 223 ... side frame, 224, 225 ... arm part , 231, 232, 234 ... 1st support member, 233, 233 A, 233 B ... 2nd support member, 300 ... mesh basket, 900 ... tray stand, 910 ... upper frame, 920 ... partition member, 931, 932 ... support member, d: arrangement interval, H: width in the longitudinal direction of the tray, L ... thickness direction of the tray, P1 ... first contact point, P2 ... second contact point, X ... longitudinal direction, Y ... width direction, Z ... vertical direction , Θs: the inclination angle of the partition member, θt: the inclination angle of the inclined surface of the tray

Claims (4)

A tray stand that leans against a rectangular tray,
A plurality of partition members arranged at regular intervals;
A lateral frame that supports the plurality of partition members;
A first support member and a second support member that support the tray, which is leaned between adjacent partition members, at two points from below;
Each of the plurality of partition members is inclined in the arrangement direction of the plurality of partition members,
The first contact point at which the first support member and the tray are in contact with each other, and the second contact point at which the second support member and the tray are in contact are located at different heights ,
In the case where the tray has a concave portion on which an article is placed and an edge protruding from the outer peripheral edge of the concave portion, and has an inclined surface that rises from the outer peripheral edge of the bottom surface of the concave portion toward the edge,
A tray stand, wherein θs which is an inclination angle of the partition member with respect to a vertical direction is smaller than θt which is an inclination angle of the inclined surface with respect to the thickness direction of the tray. The partition member includes a lower frame and a side frame that rises from an end of the lower frame,
The first support member is a rod-shaped member that intersects the plurality of lower frames,
The tray stand according to claim 1, wherein the second support member is a bar-shaped member that intersects with the plurality of side frames.   The tray stand according to claim 1, wherein the second support member is a cylindrical member that is inclined up and down. A cleaning chamber; a cleaning mechanism for jetting a liquid in the cleaning chamber to clean the target to be cleaned; and supplying the air into the cleaning chamber after cleaning by the cleaning mechanism; Is used for cleaning the object to be cleaned by a cleaning machine comprising:
Wherein when the object to be cleaned is tray, to any one of claims 1 to 3, characterized in that it is arranged in the cleaning chamber in a state of leaning against between said partition member adjacent said tray Tray stand as described.

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