Washing machine

Abstract

To provide a washing machine which can reduce an influence an operation part on an upper front surface of a washing chamber receives from the heat in the washing chamber.SOLUTION: A tool washing machine 100 includes: a body part 1; an upper door 23 slidably provided in the vertical direction with respect to the body part 1; an upper side front part panel 5C; and an operation display part 11. The upper side front part panel 5C includes: a front surface part 5Ca where the operation display part 11 is mounted; a first bent part 5Cb bent to the upper door 23 side from a lower end of the front surface part 5Ca; and a second bent part 5Cc bent to the upper side along the upper door 23 from an end part of the upper door 23 side of the first bent part 5Cb. Between a rear surface of the operation display part 11 and a front surface of the second bent part 5Cc, a first gap G1 is formed, and between a lower surface of the operation display part 11 and an upper surface of the first bent part 5Cb, a second gap G2 is formed.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to a washing machine. [Background technology]

[0002] There are known utensil washers for washing commercial utensils such as baking trays, various trays, and large pans. For example, Patent Document 1 discloses a washer having a washing chamber with a larger volume than that of a general washer for washing dishes and a door structure that allows the washing chamber to be opened widely. This type of washer sprays a larger amount of water from the nozzle than a general washer, so the washing chamber is likely to fill with steam during washing. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Utility Model Application Publication No. 7-37033 Summary of the Invention [Problem to be solved by the invention]

[0004] In the conventional cleaning machine described above, the operating unit for operating the cleaning machine is located on the front panel ahead of the vertically opening door, so it is susceptible to heat from steam that tends to accumulate in the upper part of the cleaning chamber. However, because the operating unit is a mechanical fixture, the heat described above can cause malfunctions and a shortened lifespan.

[0005] Therefore, an object of the present invention is to provide a cleaning machine that can reduce the influence of heat from the cleaning chamber even when the operating unit is located on the upper front surface of the cleaning chamber. [Means for solving the problem]

[0006] The cleaning machine of the present invention is a cleaning machine for cleaning objects to be cleaned, and comprises a main body having a cleaning chamber for accommodating the objects to be cleaned and an opening for putting the objects to be cleaned into and taking them out of the cleaning chamber; a door that is slidable in a vertical direction relative to the main body and is capable of opening and closing the opening corresponding to at least the upper region of the cleaning chamber; a front panel that is positioned on the opposite side of the cleaning chamber from the door when the opening is open in a front-to-back direction perpendicular to the opening plane of the opening; and an operating unit attached to the front panel for operating the cleaning machine, wherein the front panel has a front portion to which the operating unit is attached, a first bent portion that bends from the lower end of the front portion toward the door in the front-to-back direction, and a second bent portion that bends from the door-side end of the first bent portion toward the door in the vertical direction, and a first gap is formed between the rear surface of the operating unit in the front-to-back direction and the front surface of the second bent portion in the front-to-back direction, and a second gap is formed between the lower surface of the operating unit in the vertical direction and the upper surface of the first bent portion in the vertical direction.

[0007] In a cleaning machine with this configuration, even if a front panel is provided on the opposite side of the cleaning chamber from the door when the opening is open in the front-to-rear direction, the front panel has a second bent portion in addition to a first bent portion. Here, in a configuration in which the front panel is formed with a front portion and a first bent portion, if a user's fingers are pinched between the front panel and the door when the door is slid open or closed, the fingers may be pressed against the edge of the first bent portion, resulting in injury. In the present invention, the second bent portion is formed, so fingers are not pressed against the edge of the first bent portion, reducing the possibility of injury to the operator. Meanwhile, the operating unit is positioned above the second bent portion to avoid interference with the second bent portion, and a closed second gap is formed between the lower surface of the operating unit and the upper surface of the first bent portion. While this second gap tends to trap heat, the present invention has a first gap between the rear surface of the operating unit and the front surface of the second bent portion, thereby ensuring a path for heat to escape through the second gap. This makes it possible to reduce the influence of heat from the cleaning chamber, even when the operating unit is disposed on the upper front surface of the cleaning chamber.

[0008] In the washer according to the present invention, the size of the first gap in the front-rear direction may be at least half the size of the operating unit in the front-rear direction, thereby more reliably dissipating heat from the second gap through the first gap. [Effects of the Invention]

[0009] According to the present invention, even when the operation unit is disposed on the upper front surface of the cleaning chamber, the influence of heat from the cleaning chamber can be reduced. [Brief explanation of the drawings]

[0010] [Figure 1] FIG. 1 is a perspective view of an implement washer according to one embodiment, seen obliquely from the front. [Figure 2] 2 is a perspective view of the instrument washing machine of FIG. 1 with the upper door and the lower door open, as seen obliquely from the front. [Figure 3] FIG. 3 is a cutaway view of the machine chamber of the utensil washer of FIG. [Figure 4] 4 is a cross-sectional perspective view of the front panel, the upper door, and the upper part of the cleaning chamber of FIG. 1, as viewed obliquely from the front. [Figure 5] Fig. 5(A) is a cross-sectional view of the front panel, upper door, and upper part of the washing chamber as seen from the left and right in Fig. 1. Fig. 5(B) is a diagram explaining the effects of the instrument washer having the configuration of Fig. 5(A). [Figure 6] Fig. 6(A) is a cross-sectional view of the front panel, upper door, and upper part of the washing chamber of the tool washer according to Modification 1, as seen from the left and right. Fig. 6(B) is a diagram illustrating the effects of the tool washer having the configuration shown in Fig. 6(A). [Figure 7] Fig. 7(A) is a perspective view of the front panel of an implement washer according to Modification 2, seen obliquely from the front. Fig. 7(B) is a diagram illustrating the effects of the implement washer having the configuration shown in Fig. 7(A). DETAILED DESCRIPTION OF THE INVENTION

[0011] Hereinafter, an instrument washer (washing machine) 100 according to one embodiment will be described with reference to the drawings. For ease of explanation, in Figs. 1 to 3, the direction perpendicular to the opening surface of opening 1C through which instruments (objects to be washed) A can be put into and taken out of washing chamber 1B is defined as the front-rear direction, the direction perpendicular to both the front-rear direction and the vertical direction is defined as the left-right direction (width direction), and the vertical direction is defined as the up-down direction. The front-rear direction, left-right direction, and up-down direction are mutually orthogonal. In this specification, the front-rear direction, left-right direction, and up-down direction refer to the directions shown in Figs. 1 to 3.

[0012] One embodiment of the utensil washer 100 is a washer for washing relatively large utensils (objects to be washed), such as baking trays, various trays, and large pans. As shown in Fig. 1, the utensil washer 100 is characterized by having a lower door 21 and an upper door 23 provided at the front of the washing chamber 1B, allowing the washing chamber 1B to be opened wide to allow relatively large utensils to be loaded and unloaded. As shown in Figs. 1 to 3, the utensil washer 100 includes a main body 1, an upper washing nozzle 13, a lower washing nozzle 15, an upper rinsing nozzle 14, a lower rinsing nozzle 16, the lower door 21, the upper door 23, a washing water tank 31, a washing pump 33, a rinsing water tank 37, a rinsing pump 39, and a controller 40.

[0013] The main body 1 is formed by a frame 3, a stainless steel exterior panel 5, and an interior panel 7. The exterior panel 5 has a pair of side panels 5A, 5A that form the left and right sides, an upper panel (top surface) 5B, an upper front panel (front panel) 5C, a lower front panel 5D, and a rear panel 5E. Legs 9 are attached to the four corners of the lower part of the main body 1. The upper front panel 5C is provided with an operation display unit (operation unit) 11 that can be used to operate various operations of the utensil washer 100 and displays the status of the utensil washer 100. The upper front panel 5C and the operation display unit 11 will be described in detail later.

[0014] A machine chamber 1A is formed in the lower region of the main body 1, accommodating a washing water tank 31, a washing pump 33, a rinsing water tank 37, and a rinsing pump 39. A washing chamber 1B is formed in the upper region of the main body 1, accommodating a rack R on which instruments A are set.

[0015] The cleaning chamber 1B is composed of interior panels 7. The interior panels 7 mainly include a pair of side panels 7A, 7A, an upper panel 7B, and a rear panel 7C. Rack rails (not shown) that support the rack R are formed on the inner surfaces of the pair of side panels 7A, 7A. The upper panel 7B slopes downward from the center position in the left-right direction toward the side panels 7A, 7A arranged on the left and right. The main body 1 has an opening 1C facing forward, through which the rack R on which the instruments A are set is inserted into and removed from the cleaning chamber 1B.

[0016] As shown in Fig. 3, an upper washing nozzle 13 and an upper rinsing nozzle 14 are rotatably arranged above the washing chamber 1B. The upper washing nozzle 13 has a main body 13a extending radially from the center of rotation and a nozzle 13b formed on the underside of the main body 13a for spraying washing water toward the appliance A housed below the main body 13a. The upper rinsing nozzle 14 has a main body 14a extending radially from the center of rotation and a nozzle 14b formed on the underside of the main body 14a for spraying rinsing water toward the appliance A housed below the main body 14a.

[0017] Similarly, a lower washing nozzle 15 and a lower rinsing nozzle 16 are rotatably arranged below the washing chamber 1B. The lower washing nozzle 15 has a main body 15a extending radially from the center of rotation and a nozzle 15b formed on the upper surface of the main body 15a for spraying cleaning water toward the appliance A stored above the main body 15a. The lower rinsing nozzle 16 has a main body 16a extending radially from the center of rotation and a nozzle 16b formed on the upper surface of the main body 16a for spraying rinsing water toward the appliance A stored above the main body 16a.

[0018] The tools A stored in the rack R are sprayed with cleaning water from above and below by the upper washing nozzle 13 and the lower washing nozzle 15. The tools A stored in the rack R are sprayed with rinsing water from above and below by the upper rinsing nozzle 14 and the lower rinsing nozzle 16.

[0019] As shown in FIGS. 1 to 3, the lower door 21 is a door that is disposed on the lower side when the cleaning chamber 1B is closed. The lower door 21 is fixed to the main body 1 so as to be rotatable between a closed position where the opening 1C is closed and an open position where the opening 1C is open. The lower door 21 is provided so as to be rotatable about an axis that extends in the left-right direction at the lower end of the lower door 21. The upper door 23 is a door that is disposed on the upper side when the cleaning chamber 1B is closed. The upper door 23 is fixed to the main body 1 (frame 3) so as to be slidable in the vertical direction between a closed position where the opening 1C is closed and an open position where the opening 1C is open. The upper door 23 is provided so as to be slidable in the vertical direction along the frame 3, which are the left and right side edges of the opening 1C.

[0020] The lower door 21 and the upper door 23 are connected to each other via a link mechanism (not shown). Specifically, by pulling the handle 21A provided on the lower door 21 toward you, the upper end of the lower door 21 rotates so that it falls toward you, and in conjunction with this rotation, the upper door 23 slides upward. As a result, both the lower door 21 and the upper door 23 move to the open position, and the opening 1C is fully opened. That is, the rack R on which the instruments A are set is placed in the cleaning chamber 1B, allowing it to be stored (taken in and out). Furthermore, by pushing the handle 21A provided on the lower door 21 upward, the upper end of the lower door 21 rotates so that it stands upright toward the rear, and in conjunction with this rotation, the upper door 23 slides downward. As a result, both the lower door 21 and the upper door 23 move to the closed position, and the opening 1C is fully closed. The configuration of the upper door 23 will be described in detail later.

[0021] Separator 1D is disposed between machine chamber 1A and cleaning chamber 1B so as to separate machine chamber 1A from cleaning chamber 1B. Separator 1D is disposed so as to surround cleaning water tank 31 in a plan view seen from above.

[0022] The flush water tank 31 is provided below the washing chamber 1B. The flush water tank 31 stores flush water used to wash the instruments A and the like stored in the washing chamber 1B. The flush water tank 31 is provided with a flush water detection unit, a flush water heater, and a flush water temperature sensor, none of which are shown. The flush water detection unit detects whether the level of the flush water stored in the flush water tank 31 is at a constant level. The flush water heater heats the flush water stored in the flush water tank 31 to improve sterilization ability and washing ability. The flush water temperature sensor detects the temperature of the flush water stored in the flush water tank 31.

[0023] The flush water tank 31 opens upward, and a tank filter 31A is provided at the opening. The flush water sprayed by the upper flushing nozzle 13 and the lower flushing nozzle 15, and the rinsing water sprayed by the upper rinsing nozzle 14 and the lower rinsing nozzle 16 are collected in the flush water tank 31 via the tank filter 31A. The water collected in the flush water tank 31 is recycled and reused as flush water for washing the appliances A.

[0024] The flush pump 33 is located in the machine room 1A. The flush pump 33 sends out flush water stored in the flush water tank 31 to the washing room 1B which houses the appliances A. The flush pump 33 takes in flush water from the flush water tank 31 via the pump filter 31B and sends it out to the upper flush nozzle 13 and the lower flush nozzle 15 via the washing piping 1E. The flush water tank 31 is provided with an overflow pipe 35 which extends in the vertical direction. The overflow pipe 35 allows water that exceeds a high water level, which is a water level higher than the constant water level, to flow in from its upper end and drain it outside the flush water tank 31, thereby regulating the level of flush water stored in the flush water tank 31.

[0025] The rinsing water tank 37 is located in the machine room 1A. The rinsing water tank 37 stores rinsing water used to rinse the appliances A. Water is supplied to the rinsing water tank 37 from an external water source via a water supply pipe (not shown). The water supply pipe is provided with a water supply valve (not shown) that switches the supply of water to the rinsing water tank 37 on and off. The rinsing pump 39 is located in the machine room 1A. The rinsing pump 39 delivers cleaning water stored in the rinsing water tank 37 to the cleaning chamber 1B that houses the appliances A. The rinsing pump 39 takes in rinsing water from the rinsing water tank 37 and delivers the rinsing water to the upper rinsing nozzle 14 and the lower rinsing nozzle 16 via the rinsing pipe 1F. The rinsing pipe 1F is contained within the cleaning pipe 1E. In other words, the rinsing pipe 1F and the cleaning pipe 1E form a double pipe configuration. In this embodiment, an example has been described in which most of the cleaning chamber 1B is formed as a double pipe, but the range of double pipes or whether or not to form a double pipe can be modified as appropriate.

[0026] The rinse water tank 37 is equipped with a rinse water detection unit, an overflow unit, a rinse water heater, and a rinse water temperature sensor. The rinse water detection unit detects whether the water stored in the rinse water tank 37 is at a constant water level. The overflow unit discharges water that exceeds a high water level in the rinse water tank 37, which is a water level higher than the constant water level. The rinse water heater heats the rinse water stored in the rinse water tank 37 to improve sterilization and rinsing capabilities. The rinse water temperature sensor detects the temperature of the rinse water.

[0027] The controller 40 is placed in the machine room 1A. The controller 40 is a computer system or processor implemented in an integrated circuit. The controller 40 is composed of a CPU (Central Processing Unit), ROM (Read Only Memory), RAM (Random Access Memory), an input / output interface, etc. Various programs and data are stored in the ROM.

[0028] Here, the upper door 23 will be described in detail. As shown in Figures 4 and 5(A), the upper door 23 is provided to be slidable in the vertical direction relative to the main body 1, and is provided to be able to open and close an opening 1C corresponding to an upper region in the cleaning chamber 1B. The upper door 23 has a front panel 23a, an upper side panel 23b, a bent portion 23c, a rear panel 23d, a lower side panel (not shown), and a side panel 23e.

[0029] The front panel 23a is a surface perpendicular to the front-rear direction and forms an outer surface in the closed position in which the opening 1C (see FIG. 2) is closed. The upper side panel 23b is a portion that bends from the upper end of the front panel 23a toward the cleaning chamber 1B. The upper side panel 23b forms the upper side surface of the upper door 23. The bent portion 23c is a portion that bends vertically downward from the end of the upper side panel 23b on the cleaning chamber 1B side. A labyrinth-structured gap is formed between the upper door 23 in the closed position and the partition section 2, which will be described in detail later, to prevent water and / or water vapor from leaking out of the cleaning chamber 1B. The rear panel 23d is a surface perpendicular to the front-rear direction and forms an inner surface in the closed position in which the opening 1C is closed. Each of the pair of side panels is a surface perpendicular to the left-right direction and forms the left and right side surfaces of the upper door 23.

[0030] A partition section 2 is provided on the cleaning chamber 1B side (rear side) of the upper door 23, opposite the upper front panel 5C. The partition section 2 defines an upper door movement area 2R in which the upper door 23 moves up and down. The partition section 2 is arranged to face the upper front panel 5C in the front-to-rear direction. The partition section 2 has a main body section 2a, a first bent section 2b, and a second bent section 2c. The main body section 2a is a section that defines the cleaning chamber 1B and is a surface perpendicular to the front-to-rear direction. The first bent section 2b is a section that bends from the lower end of the main body section 2a toward the front in the front-to-rear direction. The second bent section 2c is a section that bends from the end of the first bent section 2b on the upper door 23 side toward the upward direction in the vertical direction. The first bent section 2b and the second bent section 2c form a restricting section that restricts the lower limit position of the upper door 23. The restricting portion formed by the first bent portion 2b and the second bent portion 2c locks the locked portion formed by the bent portion 23c and a part of the upper side panel 23b of the upper door 23. The upper door movement area 2R formed between the upper front panel 5C and the main body portion 2a has an opening OP formed therein that allows the upper door 23 to move upwardly through the upper panel 5B.

[0031] 2, 4, and 5(A), the upper front panel 5C of this embodiment is disposed on the opposite side of the upper door 23 from the cleaning chamber 1B in the front-rear direction (i.e., forward in the front-rear direction) when the opening 1C is open. The upper front panel 5C has a front surface 5Ca, a first bent portion 5Cb, a second bent portion 5Cc, a third bent portion 5Cd, and a fourth bent portion 5Ce. The front surface 5Ca, the first bent portion 5Cb, the second bent portion 5Cc, the third bent portion 5Cd, and the fourth bent portion 5Ce are formed by bending a plate-shaped member.

[0032] The front surface 5Ca is a surface perpendicular to the front-rear direction and is the surface on which the operation and display unit 11 is attached. More specifically, a through-hole 5Cf is formed in the front surface 5Ca, and the front surface 11a of the operation and display unit 11 is positioned so that it is exposed through the through-hole 5Cf. A display unit showing the status of the utensil washer 100, various buttons for operating the utensil washer 100, and the like are arranged on the front surface 11a of the operation and display unit 11. The operation and display unit 11 is an electronic device. The first bent portion 5Cb bends from the lower end of the front surface 5Ca toward the upper door 23 in the front-rear direction. The second bent portion 5Cc bends from the end of the first bent portion 5Cb facing the upper door 23 and bends upward in the vertical direction along the upper door 23 side. The third bent portion 5Cd bends from the upper end of the front surface 5Ca toward the upper door 23 in the front-rear direction. The fourth bent portion 5Ce bends downward in the vertical direction from the end of the third bent portion 5Cd facing the upper door 23.

[0033] As shown in Figures 4 and 5(A), in the upper door 23 and upper front panel 5C configured as above, a first gap G1 is formed between the rear surface 11b of the operation display unit 11 in the front-rear direction and the front surface of the second bent portion 5Cc in the front-rear direction. The size of the first gap G1 in the front-rear direction is, for example, half or more of the size of the operation display unit 11 in the front-rear direction, for example, 15 mm to 30 mm. Furthermore, a second gap G2 is formed between the bottom surface 11c of the operation display unit 11 in the vertical direction and the top surface of the first bent portion 5Cb in the vertical direction. The size of the second gap G2 in the vertical direction is, for example, 15 mm to 25 mm.

[0034] The effects of the tool washer 100 of the above embodiment will be described. In a configuration in which the upper front panel 6 is provided on the opposite side of the upper door 23 from the washing chamber 1B when the opening 1C is open, i.e., the upper front panel 6 is located forward of the upper door 23, there is a possibility that a user's fingers or the like may be pinched between the upper front panel 6 and the upper door 23 when the upper door 23 is slid open or closed. Therefore, as shown in FIGS. 6(A) and 6(B), a conventional tool washer 100 employs an upper front panel 6 provided with a first bent portion 6c and a second bent portion 6d. With this upper front panel 6, the second bent portion 6d prevents a user's fingers or the like from being pressed against the edge of the first bent portion 6c, even if the user's fingers or the like are pinched between the upper front panel 6 and the upper door 23. This reduces the risk of injury to the user's fingers or the like.

[0035] On the other hand, by forming the second bent portion 6d, the operation and display unit 11 is positioned above the upper end of the second bent portion 6d to avoid interference with the second bent portion 6d. As a result, a gap is formed between the lower surface 11c of the operation and display unit 11 and the upper surface of the first bent portion 6c. Here, the area above the cleaning chamber 1B will be described. As shown in FIG. 6(A), heat H tends to accumulate above the cleaning chamber 1B due to the movement of water vapor generated during the cleaning operation. The heat H accumulated above the cleaning chamber 1B is then conducted to the upper door movement area 2R and the periphery of the operation and display unit 11 via the upper door 23 and the partition 2. In other words, the space surrounded by the upper front panel 6 is in an environment susceptible to the influence of heat H from the cleaning chamber 1B. In such an environment, the area between the lower surface 11c of the operation and display unit 11 and the upper surface of the first bent portion 6c is closed as shown in FIG. 6(B), creating a space where heat H tends to accumulate.

[0036] Therefore, in the instrument washer 100 of the above embodiment, as shown in FIGS. 4 and 5(A), a first gap G1 is formed between the rear surface 11b of the operation and display unit 11 in the front-rear direction and the front surface of the second bent portion 5Cc in the front-rear direction. This allows heat H to escape through the first gap G1 formed between the rear surface 11b of the operation and display unit 11 in the front-rear direction and the front surface of the second bent portion 5Cc in the front-rear direction, even if heat H enters the second gap G2 between the bottom surface 11c of the operation and display unit 11 and the upper surface of the first bent portion 6c. This prevents the temperature around the operation and display unit 11 from rising due to the influence of heat H from the washing chamber 1B. As a result, even if the operation and display unit 11 is disposed above and in front of the washing chamber 1B, the influence of heat H from the washing chamber 1B can be reduced. In other words, the possibility of damage or a shortened lifespan of the operation and display unit 11, which is made of electronic components, being affected by heat H can be reduced.

[0037] In the instrument washer 100 of the above embodiment, the size of the first gap G1 in the front-to-rear direction is set to be at least half the size of the operation display unit 11 in the front-to-rear direction. This allows heat to be more reliably released from the second gap G2 through the first gap G1.

[0038] Although one embodiment has been described above, the present invention is not limited to the above embodiment, and various modifications are possible without departing from the spirit of the invention.

[0039] In the above embodiment, an example was described in which the first folded portion 5Cb of the upper front panel 5C was formed from a flat plate-like member, but the first folded portion 5Cb may be formed in a mesh shape or have slits, for example. Also, in the above embodiment, no mention was made of the side surface portion (surface perpendicular to the left-right direction) of the upper front panel 5C, but like the first folded portion 5Cb, it may be formed in a mesh shape or have slits to allow air to be taken in from outside the main body 1 into the area surrounded by the upper front panel 5C.

[0040] As shown in FIG. 7(A), the configuration in which the first folded portion 5Cb or the side portion 5Cg of the upper front panel 5C is formed in a mesh shape or has slits can also be applied to the upper front panel 6. Specifically, the upper front panel 6 has a first main body portion 6a, a second main body portion 6b, a first folded portion 6c, a second folded portion 6d, a third folded portion 6e, a fourth folded portion 6f, and a pair of side portions 6g, 6g. The first main body portion 6a has a surface perpendicular to the front-to-rear direction. The second main body portion 6b has a surface that slopes downward from the lower end of the first main body portion 6a toward the rear. A through-hole 6ba is formed in the second main body portion 6b, and the front surface 11a of the operation display unit 11 is positioned so as to be exposed through the through-hole 6ba.

[0041] The first bent portion 6c bends from the lower end of the second main body portion 6b toward the upper door 23 in the front-to-rear direction. The first bent portion 6c is formed in a mesh shape. The second bent portion 6d bends from the end of the first bent portion 6c on the upper door 23 side toward the upper door 23 and vertically upward along the upper door 23. The third bent portion 6e bends from the upper end of the first main body portion 6a toward the upper door 23 in the front-to-rear direction. The fourth bent portion 6f bends from the end of the third bent portion 6e on the upper door 23 side toward the lower vertical direction. The pair of side portions 6g, 6g have surfaces that are perpendicular to the left-to-right direction and have a plurality of slits 6ga formed therein.

[0042] By employing such an upper front panel 6, even if the gap between the rear surface 11b of the operation / display unit 11 in the front-rear direction and the front surface of the second bent portion 6d in the front-rear direction becomes narrow, as shown in FIG. 7(B), air can be introduced from outside the main body 1 into the area surrounded by the upper front panel 6, thereby suppressing a rise in the temperature around the operation / display unit 11. More specifically, when the lower door 21 and the upper door 23 are opened after the washing operation of the instrument washer 100 is completed, heat H (high-temperature water vapor) inside the washing chamber 1B is guided through the upper door movement area 2R. When the heat H guided through the upper door movement area 2R escapes to the outside of the main body 1 through the opening OP, negative pressure is created in the area surrounded by the upper front panel 6, and air EA from outside the main body 1 is drawn into the area surrounded by the upper front panel 6 through the multiple slits 6ga formed in the pair of side surfaces 6g, 6g. This reduces the temperature around the operation / display unit 11, thereby suppressing a rise in the temperature of the operation / display unit 11. Such an effect can also be obtained by forming the first folded portion 5Cb or the side surface portion 5Cg of the upper front panel 5C in a mesh shape or by forming slits therein, as shown in FIG.

[0043] The utensil washing machine 100 of the above embodiment and the above modified example has been described as having a configuration including a lower door 21 and an upper door 23, but it may also be configured to have only a sliding door such as the upper door 23. [Explanation of symbols]

[0044] 1...main body portion, 1B...washing chamber, 1C...opening, 2...compartment portion, 2R...upper door movement area, 5...exterior panel, 5A...side panel, 5B...upper panel, 5C...upper front panel, 5Ca...front portion, 5Cb...first folding portion, 5Cc...second folding portion, 6...upper front panel, 6a...first main body portion, 6b...second main body portion, 6c...first folding portion, 6d...second folding portion, 6g...side portion, 6ga...slit, 7...interior panel, 11...operation display portion, 11a...front surface, 11b...rear surface, 11c...bottom surface, 21...lower door, 23...upper door (door), 100...utensil washer (washing machine), A...utensil (item to be washed), G1...first gap, G2...second gap, H...heat, OP...opening.

Claims

1. A washing machine for washing an object to be washed, a main body having a cleaning chamber for accommodating the object to be cleaned and an opening for inserting and removing the object to be cleaned into the cleaning chamber; a door that is slidable in a vertical direction relative to the main body and that is capable of opening and closing the opening corresponding to at least an upper region of the cleaning chamber; a front panel disposed on the opposite side of the door from the cleaning chamber when the opening is open in a front-rear direction perpendicular to the opening plane of the opening; an operating unit attached to the front panel for operating the cleaning machine, The front panel includes: a front surface portion to which the operation unit is attached; a first bent portion bent from a lower end of the front surface portion toward the door in the front-rear direction; a second bent portion that is bent upward in the vertical direction along the door from the door-side end of the first bent portion, a first gap is formed between a rear surface of the operation portion in the front-rear direction and a front surface of the second bent portion in the front-rear direction; A second gap is formed between a lower surface of the operating portion in the vertical direction and an upper surface of the first bent portion in the vertical direction.

2. The washer according to claim 1 , wherein the size of the first gap in the front-rear direction is equal to or greater than half the size of the operating portion in the front-rear direction.

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