JP7489837B2 - washing machine - Google Patents

Description

The present invention relates to a cleaning machine.

Patent Document 1 discloses a dishwasher in which a gas booster for supplying high-temperature water into the washing chamber is disposed on the side of the dishwasher body, and an exhaust pipe for discharging the exhaust gas from the gas booster is provided along the back of the dishwasher body. Such dishwashers are often installed with their backs facing a wall, and the Fire Service Act and other regulations stipulate that an appropriate distance must be secured between the exhaust pipe provided on the back and the wall or other object to be separated from it.

JP 2001-231736 A

However, the installation of dishwashers is currently left to the discretion of the installer, and there are cases where the appropriate distance is not ensured. For this reason, when installing a dishwasher that has an exhaust pipe on the exterior surface, that is, the side or back of the dishwasher body, it is required that the appropriate distance be ensured regardless of the installer.

The present invention aims to provide a cleaning machine that can ensure an appropriate distance when installing a cleaning machine with a gas booster exhaust pipe on the outer surface of the cleaning machine body.

The cleaning machine according to the present invention comprises a cleaning machine body having a cleaning chamber for cleaning the object to be cleaned, a machine chamber housing a gas booster for heating water to be supplied to the cleaning chamber, and a door that is movable for opening and closing the cleaning chamber; an exhaust pipe that is at least partially disposed along the outer surface of the cleaning machine body other than the door and extends vertically, discharging exhaust gas from the gas booster through an exhaust port at the upper end in the extending direction; and a spacer portion that is disposed in the exhaust pipe and protrudes on the side opposite the side on which the outer surface is disposed as viewed from the exhaust pipe.

In a cleaning machine with this configuration, a spacer portion is provided that protrudes in the opposite direction (direction) from the side (direction) on which the outer surface of the cleaning machine body is located when viewed from the exhaust pipe. Therefore, even if an installer installs a cleaning machine with an exhaust pipe on its outer surface close to a wall, the spacer portion comes into contact with the wall first, and the installer is unable to move the exhaust pipe, and therefore the cleaning machine, any closer to the wall. This ensures an appropriate separation distance when installing a cleaning machine with a gas booster exhaust pipe on the outer surface of the cleaning machine body.

In the cleaning machine according to the present invention, the spacer portion may be formed by bending a portion of the member that constitutes the exhaust pipe. In this configuration, the spacer portion can be formed integrally with the member that constitutes the exhaust pipe, making it easy to form the spacer portion.

In the cleaning machine according to the present invention, the exhaust pipe extends vertically above the cleaning machine body, and the exhaust port may be covered vertically above and open toward the cleaning machine body in a plan view from above in the vertical direction. This configuration can prevent foreign matter from entering from the upper end of the exhaust pipe. Furthermore, in this configuration, the exhaust gas is discharged toward the cleaning machine body, so the effect of the exhaust gas on objects to be separated, such as walls, can be suppressed.

In the cleaning machine according to the present invention, the exhaust pipe has a main body member that extends vertically from below to above in a straight line, and an exhaust port forming member that is detachably attached to the upper end of the main body member in the vertical direction and forms an exhaust port, and the spacer portion may be formed on the exhaust port forming member. The exhaust pipe has a surface temperature that is increased by the exhaust gas flowing inside, and the temperature increases the closer it is to the exhaust gas source, i.e., the lower it is in the vertical direction. In this configuration, the exhaust port forming member on which the spacer portion is provided is located relatively far from the exhaust gas source, and therefore has a lower temperature even within the exhaust pipe. This makes it possible to suppress the effect of the spacer portion on objects to be separated, such as walls.

In the cleaning machine according to the present invention, the cleaning machine body further includes two support pillars that hold and guide the door so that it can move vertically, and a rear panel that connects the two support pillars. When the direction in which the door is held by the support pillars is the front, the rear panel is provided in a state where it is offset forward with respect to the rear surface of the rear side of the support pillars. The exhaust pipe is arranged so as to straddle both one of the support pillars and the rear panel in the opposing direction of the two support pillars, and a part of the front part of the exhaust pipe is arranged in contact with the rear surface of one of the support pillars, and the remaining part of the front part may be arranged at a distance from the rear panel. In this configuration, by arranging the exhaust pipe so as to straddle both one of the support pillars and the rear panel that is offset forward from the support pillars in the opposing direction of the two support pillars, a part of the front part of the exhaust pipe can be provided with a part that does not come into contact with other parts (in other words, a part that comes into contact with outside air). This makes it easier for the part of the exhaust pipe that comes into contact with outside air to be cooled, and the temperature of the exhaust pipe surface can be reduced.

According to the present invention, when installing a cleaning machine in which a gas booster exhaust pipe is provided on the outer surface of the cleaning machine body, an appropriate separation distance can be ensured.

FIG. 1 is a perspective view of a dishwasher according to one embodiment, as viewed obliquely from the front. FIG. 2 is a perspective view of the dishwasher according to one embodiment, seen obliquely from behind. FIG. 3 is a cross-sectional view showing a schematic configuration of a dishwasher according to one embodiment. FIG. 4 is a perspective view showing the arrangement of the rinse tank, the gas booster, the rinse pump, the circulation pump, and the exhaust duct. FIG. 5 is an exploded perspective view of the members that constitute the exhaust stack. FIG. 6 is a perspective view showing the configuration of a member used when extending the length of the exhaust stack. FIG. 7 is a cross-sectional view of the external duct of FIG. 2 taken along line VII-VII when viewed from below to above. FIG. 8 is a perspective view of a dishwasher according to a modified example, as viewed obliquely from behind. FIG. 9 is a cross-sectional view of the external duct of FIG. 8 taken along line IX-IX when viewed from below to above.

A preferred embodiment of the present invention will be described in detail below with reference to the attached drawings. In the description of the drawings, the same or corresponding elements are given the same reference numerals, and duplicated descriptions will be omitted. The directions in the following description are the directions when the dishwasher (cleaning machine) 1 is viewed from the front, that is, the directions defined in FIG. 1 (up-down direction, front-rear direction, left-right direction).

As shown in Figures 1 to 3, the dishwasher 1 includes a washing machine main body 2. The washing machine main body 2 includes a washing chamber 3 for washing tableware (items to be washed) such as plates and bowls after eating and drinking (hereinafter simply referred to as "tableware"), and a machine chamber 4 for housing a gas booster 60 for heating water supplied to the washing chamber 3, etc.

The washer body 2 is divided into an upper part 2A and a lower part 2B. The washer body 2 has a stainless steel panel 5 that covers the washer body 2, a pair of stainless steel supports 6, 6 that are arranged at the corners on the rear (exterior) side of the washer body 2 and extend vertically between the upper part 2A and the lower part 2B, and a door 7 that is movable to open and close the cleaning chamber 3.

The cleaning chamber 3 is provided in the upper part 2A of the cleaning machine main body 2, and is formed by being partitioned by a stainless steel back panel 5A arranged between a pair of supports 6, 6, and a box-shaped door 7 supported and guided by the pair of supports 6, 6 so that it can move up and down freely. The machine chamber 4 is provided in the lower part 2B of the cleaning machine main body 2, and is formed by being covered by the back panel 5A, the front panel 5B, the left panel 5C, and the right panel 5D.

The door 7 moves up and down by a handle 8A that extends horizontally in front. The tips of a pair of left and right rotating arms 8B, 8B are fixed to both ends of the handle 8A, and the rotating arms 8B, 8B are arranged diagonally along the side surface 7A of the door 7. One end of a link portion 8C arranged along the side surface 7A of the door 7 is rotatably connected to the rotating arms 8B, 8B, and the other end of the link portion 8C is connected to the door 7 via an axle pin 8D, allowing the door 7 to move up and down in response to the rotational movement of the handle 8A.

Legs 9 are attached to the four corners of the bottom surface of the washer body 2. An operation panel 10 for operating the dishwasher 1 is provided on the side of the washer body 2.

A rack rail 11 on which a lattice-shaped dish rack capable of storing dishes is placed is detachably arranged at the bottom of the washing chamber 3. An upper washing nozzle 12A consisting of three radially extending arms and an upper rinsing nozzle 13A consisting of two arms are rotatably arranged at the top of the washing chamber 3. Similarly, a lower washing nozzle 12B consisting of three radially extending arms and a lower rinsing nozzle 13B consisting of two arms are rotatably arranged at the bottom of the washing chamber 3. Washing water is sprayed from above and below the dishes stored in the dish rack by the upper washing nozzle 12A and the lower washing nozzle 12B, and rinsing water is sprayed from above and below by the upper rinsing nozzle 13A and the lower rinsing nozzle 13B.

At the bottom of the cleaning chamber 3, a cleaning tank 15 is provided so as to protrude into the machine chamber 4. The cleaning tank 15 stores water supplied to the cleaning chamber 3. The cleaning tank 15 is made of a material such as stainless steel. A cleaning water heater 15A is installed in the cleaning tank 15 to heat (maintain) the cleaning water to a predetermined temperature. A filter 18 is detachably arranged between the cleaning chamber 3 and the cleaning tank 15. A cleaning pump 23 is connected to the front of the cleaning tank 15 via a cleaning water suction port. A cleaning water discharge pipe 21 is connected to the discharge port of the cleaning pump 23. The cleaning water discharge pipe 21 branches into a first cleaning water discharge pipe 21A and a second cleaning water discharge pipe 21B, and the first cleaning water discharge pipe 21A is connected to the upper cleaning nozzle 12A, and the second cleaning water discharge pipe 21B is connected to the lower cleaning nozzle 12B.

As shown in Figures 3 and 4, the machine room 4 is provided with the above-mentioned wash pump 23 and wash water discharge pipe 21, the rinse tank 25, the rinse pump 27, the rinse water discharge pipe 31, the circulation pump 71, the first circulation pipe 72, the second circulation pipe 73, the gas booster 60, a cover member 65 surrounding the gas booster 60, an internal duct 81, a power source 79 that supplies power to the wash pump 23, the rinse pump 27, and the circulation pump 71, and an electrical box 50A that incorporates a controller 50 that controls the overall operation of the dishwasher 1.

The rinse tank 25 stores water used for initial hot water supply or water used for rinsing in the rinsing process. The rinse tank 25 is connected to a water supply pipe 35 through which water is supplied from an external water source, a rinse water discharge pipe 31 through which water is supplied to the cleaning chamber 3 via a rinse pump 27, a first circulation pipe 72 through which water is supplied to the gas booster 60 via a circulation pump 71, and a second circulation pipe 73 through which heated water is supplied from the gas booster 60.

The gas booster 60 heats water supplied from the rinsing tank 25 and returns the heated water to the rinsing tank 25. The gas booster 60 heats the water with heat generated by mixing combustible gas supplied from the outside with combustion air and burning the mixture. The cover member 65 houses the gas booster 60 and is made of a heat-insulating material. A box-shaped connection part 67 that communicates with the exhaust port 60A of the gas booster 60 is provided on the upper surface of the cover member 65. The connection part 67 guides the exhaust gas discharged from the exhaust port 60A to the exhaust duct 80.

The exhaust duct 80 exhausts the exhaust gas generated in the gas booster 60 to the outside of the cleaning machine body 2. The exhaust duct 80 has an internal duct 81 arranged inside the machine room 4 (cleaning machine body 2) and an external duct (exhaust pipe) 90 arranged outside the cleaning machine body 2, which are connected in this order. The exhaust duct 80 is made of a material such as stainless steel. The internal duct 81 is arranged between the left panel 5C of the machine room 4 and the cleaning tank 15, and extends in the front-rear direction from the connection part 67 to the external duct 90 on the outside of the rear panel 5A. The external duct 90 will be described in detail later.

As shown in FIG. 3, a rinsing water discharge pipe 31 is connected to the discharge port of the rinsing pump 27. The rinsing water discharge pipe 31 branches into a first rinsing water discharge pipe 31A and a second rinsing water discharge pipe 31B, with the first rinsing water discharge pipe 31A connected to the upper rinsing nozzle 13A and the second rinsing water discharge pipe 31B connected to the lower rinsing nozzle 13B. The first rinsing water discharge pipe 31A is disposed within the first cleaning water discharge pipe 21A. In other words, the first cleaning water discharge pipe 21A and the first rinsing water discharge pipe 31A form a double pipe structure.

Next, the external duct 90 will be described. The external duct 90 is provided on the outer surface of the washer body 2 other than the door 7 and extends vertically, discharging exhaust gas from the gas booster 60 from an exhaust port 94 at the upper end in the extension direction. In this embodiment, as shown in Figures 1 to 3, the external duct 90 is provided on the back surface of the washer body 2 and extends vertically above the washer body 2 (the upper part of the door 7 when the cleaning chamber 3 is closed). The external duct 90 is provided with a spacer portion 95 that protrudes on the side opposite to the outer surface side of the washer body 2 on which the external duct 90 is provided.

As shown in FIG. 5, the external duct 90 has a main body member 92 that extends vertically in a straight line from below to above, a connection member 91 that connects the internal duct 81 and the main body member 92, and an exhaust port forming member 93 that is detachably attached to the upper end of the main body member 92 in the vertical direction and forms an exhaust port 94.

The connecting member 91 is a box-shaped member consisting of a rear surface 91a, a front surface 91b, a pair of side surfaces 91c, 91c, an upper surface 91d, and a lower surface 91e. The front surface 91b has an opening 91f that is a communication portion with the internal duct 81. The upper surface 91d has an opening 91g that is a communication portion with the main body member 92, and connection portions 91h, 91h that are connection portions with the main body member 92. The connecting member 91 has fixing portions 91i, 91i for fixing to the rear surface portion 6Bb (see FIG. 7) of the support 6 that constitutes a part of the rear surface of the cleaning machine main body 2. The connecting member 91 and the support 6 can be connected by a bolt or the like (not shown).

The main body member 92 is a cylindrical member consisting of a rear surface portion 92a, a front surface portion 92b, and a pair of side surfaces 92c, 92c. The lower end of the main body member 92 is formed with an opening 92e that is a communication portion with the connection member 91, and connection portions 92f, 92f that are connection portions with the connection member 91. The upper end of the main body member 92 is formed with an opening 92g that is a communication portion with the exhaust port forming member 93, and connection portions 92h, 92h that are connection portions with the exhaust port forming member 93. The main body member 92 is formed with fixing portions 92i, 92i for fixing to the rear surface portion 6Bb (see FIG. 7) of the support 6 that constitutes a part of the rear surface of the cleaning machine main body 2. The main body member 92 and the connection member 91 can be connected by a bolt or the like not shown. The main body member 92 and the support 6 can be connected by a bolt or the like not shown.

The exhaust port forming member 93 is a member that covers the upper end of the main body member 92 and is composed of a rear surface portion 93a, an upper surface portion 93b, and a pair of side surfaces 93c, 93c. The upper surface portion 93b extends obliquely upward from the upper end of the rear surface portion 93a along the upper ends of the pair of side surfaces 93c, 93c. The lower end of the exhaust port forming member 93 forms a communication portion with the main body member 92 when attached to the main body member 92. The portion of the exhaust port forming member 93 that faces the rear surface portion 93a forms an opening that becomes the exhaust port 94 when attached to the main body member 92. The exhaust port 94 is covered vertically upward and opens toward the washer main body 2 side (i.e., the front of the dishwasher 1) in a plan view seen from above vertically. The exhaust port forming member 93 and the main body member 92 can be connected by a bolt 96 or the like.

In this embodiment, a spacer portion 95 is provided on the rear surface 93a of the exhaust port forming member 93, protruding on the side opposite to the outer surface side of the cleaning machine body 2 on which the external duct 90 is provided. The spacer portion 95 is formed by bending a part of the member that constitutes the exhaust port forming member 93. More specifically, the spacer portion 95 is formed by bending the lower end of the rear surface 93a of the exhaust port forming member 93 horizontally backward. The amount of bending of the spacer portion 95 from the rear surface 93a, i.e., the rearward protruding width L, is, for example, 5 mm to 10 mm, and the protruding width of the spacer portion 95 is appropriately adjusted according to the separation distance required for the object to be separated.

The spacer portion 95 is the first member to come into contact with the object to be separated when the dishwasher 1 is brought close to the object to be separated with the back surface of the dishwasher 1 facing the object to be separated, such as a wall. Therefore, the spacer portion 95 is a member that ensures the required distance between the external duct 90 and the object to be separated when the dishwasher 1 is installed so that the back surface of the dishwasher 1 faces the object to be separated. The installer may install the dishwasher 1 so that the spacer portion 95 comes into contact with the object to be separated, or may install the dishwasher 1 close to the object to be separated so that the spacer portion 95 does not come into contact with the object to be separated. In this embodiment, the portion of the spacer portion 95 that may come into contact with the object to be separated extends horizontally, and the thickness of this portion is, for example, 0.5 mm to 2.0 mm.

When the connecting member 91, the main body member 92, and the exhaust port forming member 93 are connected, the rear surface 91a of the connecting member 91, the rear surface 92a of the main body member 92, and the rear surface 93a of the exhaust port forming member 93 are flush with each other. Therefore, if the spacer portion 95 maintains an appropriate distance between the rear surface 93a of the exhaust port forming member 93 and the object to be separated, an appropriate distance is also maintained between the rear surface 91a of the connecting member 91 and the object to be separated, and between the rear surface 92a of the main body member 92 and the object to be separated.

As shown in FIG. 6, the external duct 90 can be fitted with an extension member 97 for adjusting the height position of the exhaust port 94 in the external duct 90. The extension member 97 is a cylindrical member consisting of a rear surface portion 97a, a front surface portion 97b, and a pair of side surfaces 97c, 97c. The lower end of the extension member 97 is formed with an opening 97e that serves as a communication portion with the main body member 92. The upper end of the extension member 97 is formed with an opening 97g that serves as a communication portion with the exhaust port forming member 93, and connection portions 97h, 97h that serve as a connection portion with the exhaust port forming member 93. The extension member 97 and the main body member 92 can be connected by bolts or the like (not shown). The extension member 97 and the exhaust port forming member 93 can be connected by bolts 96 or the like.

Next, the configuration of the back surface of the upper part 2A of the cleaning machine main body 2 and the mounting configuration of the external duct 90 will be described with reference to FIG. 7. As shown in FIG. 7, the back surface of the upper part 2A of the cleaning machine main body 2 has a support 6 and a back panel 5A. The support 6 has a support portion 6A, a first frame 6B, and a second frame 6C. The support portion 6A is a member formed in a square tube shape, and a spring member (not shown) used for raising and lowering the door 7 is housed therein. The first frame 6B is a member that contains the support portion 6A, and forms the side portion 6Ba and the rear portion 6Bb of the support 6. The second frame 6C is connected to the first frame 6B, and forms a housing portion 6Ca that houses a roller (not shown) provided on the door 7, and is a member that holds and guides the door 7.

The rear panel 5A is a member that connects the pair of supports 6, 6, and more specifically, connects the second frames 6C of the pair of supports 6, 6. The rear panel 5A has a rear portion 5Aa that constitutes part of the rear of the cleaning machine main body 2, and a connection portion 5Ab that is a portion that is connected to the second frame 6C. The rear panel 5A is offset forward in the front-rear direction from the first frame 6B that forms the rear portion 6Bb of the support 6, and the offset amount G is, for example, 5 mm to 10 mm.

The external duct 90 is arranged so as to straddle both one of the pillars 6 and the rear panel 5A in the opposing direction (left-right direction) of the two pillars 6, 6, and a part of the front surface 92b of the main body member 92 of the external duct 90 is arranged in contact with the rear surface 6Bb of one of the pillars 6, and the remaining part of the front surface 92b is arranged at a distance from the rear surface 5Aa of the rear panel 5A.

The effect of the dishwasher 1 of this embodiment will be described. As shown in FIG. 5, in the dishwasher 1 of the above embodiment, the external duct 90 is provided with a spacer portion 95 that protrudes rearward. Therefore, even if an installer installs the dishwasher 1 with the external duct 90 provided on the back side thereof so as to be close to a separation object such as a wall, the spacer portion 95 comes into contact first, and the external duct 90, and therefore the dishwasher 1, cannot be brought any closer to the separation object. As a result, when installing the dishwasher 1 with the external duct 90 of the gas booster 60 provided on the back side of the washer body 2, the distance between the rear portion 92a of the external duct 90 and the separation object is maintained, and an appropriate separation distance can be ensured.

In the dishwasher 1 of the above embodiment, the spacer portion 95 is formed by bending the exhaust port forming member 93, which is a part of the member that constitutes the external duct 90. This allows the spacer portion 95 to be formed integrally with the member that constitutes the external duct 90, making it easy to form the spacer portion 95 and reducing the number of parts. In addition, since the side that is the lower end of the rear surface portion 93a that forms the exhaust port forming member 93 is bent, the width (size) in the left-right direction of the spacer portion 95 can be made the same as the width in the left-right direction of the exhaust port forming member 93, i.e., the width in the left-right direction of the external duct 90, so that the external duct 90 can be reliably prevented from coming into contact with the object to be separated. In addition, since it is formed integrally with the member that constitutes the external duct 90, it is possible to avoid forgetting to attach a part that occurs when the spacer portion is formed as a separate part from the external duct 90.

In addition, the surface temperature of such an external duct 90 rises due to the exhaust gas flowing inside, and the temperature becomes higher the closer to the exhaust gas source, i.e., the lower the position in the vertical direction. However, in the configuration of the above embodiment, the exhaust port forming member 93 on which the spacer portion 95 is provided is located relatively far from the exhaust gas source, so that the temperature is lower even within the external duct 90. This makes it possible to suppress the effect of the spacer portion 95 on objects to be separated, such as walls.

In the dishwasher 1 of the above embodiment, as shown in Figures 1 to 3, the external duct 90 extends vertically above the washer body 2, and the exhaust port 94 is covered vertically above and opens toward the washer body 2 side (the front in the above embodiment) in a plan view seen from above in the vertical direction. This configuration can prevent foreign matter from entering from the upper end of the external duct 90. Furthermore, in this configuration, the exhaust gas is discharged toward the washer body 2 side, so the impact of the exhaust gas on separated objects such as walls can be suppressed.

In the dishwasher 1 of the above embodiment, as shown in FIG. 7, the external duct 90 is arranged so as to straddle both one of the pair of pillars 6, 6 and the rear panel 5A in the opposing direction of the two pillars 6, 6, and a part of the front part 92b of the main body member 92 of the external duct 90 is arranged in contact with the rear part 6Bb of one of the pillars 6, and the remaining part of the front part 92b is arranged at a distance from the rear panel 5A. In this configuration, by arranging the external duct 90 so as to straddle both one of the two pillars 6, 6 and the rear panel 5A offset forward from the pillars 6 in the opposing direction of the two pillars 6, 6, a part of the front part 92b of the main body member 92 of the external duct 90 that does not contact other parts (in other words, a part that contacts the outside air) can be provided. As a result, the part of the external duct 90 that contacts the outside air is easily cooled, and the temperature of the surface of the external duct 90 can be lowered (cooling performance can be improved). If the external duct 90 is arranged offset from the back surface of the dishwasher 1, the cooling performance of the external duct 90 can be improved. Also, if the external duct 90 is arranged in contact with the back surface of the dishwasher 1, the stability of the external duct 90 can be improved. In this embodiment, a part of the front surface 92b of the main body member 92 of the external duct 90 is in contact with a part of the support 6 that constitutes the back surface of the dishwasher 1, and the remaining part of the front surface 92b of the main body member 92 of the external duct 90 is offset from the back panel 5A that constitutes the back surface of the dishwasher 1, so that both the cooling performance and the stability of the external duct 90 can be improved.

Although the embodiments of the present invention have been described above, the present invention is not necessarily limited to the above-described embodiments, and various modifications are possible without departing from the spirit of the present invention.

As shown in Figures 8 and 9, in addition to the configuration of the above embodiment, the dishwasher 1 may be configured to include a cover 100 for the external duct 90. The cover 100 is formed to be slightly larger than the size of the external duct 90, and when attached to the dishwasher body 2, it is attached with a gap between it and the outer surface of the external duct 90. Even when the cover 100 is attached, the spacer portion 95 maintains the distance between the rear surface portion 92a of the external duct 90 and the cover 100, thereby ensuring an appropriate distance between the external duct 90 and the object to be separated.

The cover 100 has a cross section perpendicular to the extension direction that is formed in a generally U-shape, with one end 100a attached to the first frame 6B, which is the rear surface 6Bb of the support 6, and the other end 100b attached to the front surfaces 91b, 92b of the external duct 90. The cover 100 and the external duct 90 can be connected by bolts 96 or the like. In this configuration, an air layer is provided between the external duct 90 and the cover 100, so that the heat of the external duct 90 can be prevented from being transferred to the cover 100. In other words, this configuration can be used to create a low-radiation dishwasher 1 that can suppress the radiant heat generated by the dishwasher 1.

In the above embodiment and modified example, an example was given in which the spacer portion 95 is integrally formed with the exhaust port forming member 93, but instead of or in addition to this configuration, the spacer portion 95 may be provided on at least one of the connecting member 91 and the main body member 92. In the above embodiment, an example was given in which the spacer portion 95 (the portion of the spacer portion 95 that may come into contact with the object to be separated) extends horizontally, but it may extend in a specific direction other than the horizontal direction, for example, it may extend vertically. In addition, the spacer portion 95 may be configured as a separate member from the member that constitutes the external duct 90, and may be provided on the member that constitutes the external duct 90.

In the above embodiment and modified example, an example was given in which the external duct 90 is provided on the rear surface (external surface) of the dishwasher 1, but it may be provided on the side surface (external surface) of the dishwasher 1. Even in this case, it is possible to ensure an appropriate separation distance between the external duct 90 and a separation object such as a wall that faces the side surface of the dishwasher 1.

In the above embodiment and modified examples, the external duct 90 is arranged along the outer surface, which is the back or side surface, of the dishwasher 1, and a part of the external duct 90 is fixed in contact with the external duct 90, but this is not limited to the above. For example, the external duct 90 may be arranged along the outer surface of the dishwasher 1 and may be partially in contact with the outer surface, but may not be fixed to the outer surface. Also, for example, the external duct 90 may be arranged along the outer surface with a gap from the outer surface of the dishwasher 1.

In the above embodiment and modified example, a circulation type heating configuration has been described as an example in which water stored in the rinse tank 25 is heated by the gas booster 60 and the heated water is returned to the rinse tank 25. However, a configuration in which water supplied from the outside is heated by the gas booster 60 and the heated water is supplied to the rinse tank 25 may also be used.

The above embodiment and modified example have been described using as an example a so-called door-type dishwasher 1 in which the washing chamber 3 is opened by the door 7 moving up and down, but the present invention can also be applied to other types of dishwashers, for example, in which a door is provided on the front side of the dishwasher body and the washing chamber is opened by rotating around a rotating shaft, or to conveyor-type dishwashers in which dishes are washed while being transported on racks for storing them.

The present invention may be modified in any suitable combination of the above-described embodiments, modifications, and other modifications without departing from the spirit of the invention.

1...Dishwasher (washing machine), 2...Washing machine main body, 3...Washing chamber, 4...Machine chamber, 5A...Rear panel, 6...Support, 7...Door, 60...Gas booster, 80...Exhaust duct, 81...Internal duct, 90...External duct (exhaust pipe), 91...Connecting member, 92...Main body member, 93...Exhaust port forming member, 94...Exhaust port, 95...Spacer part, 97...Extension member, 100...Cover.

Claims (4)

a cleaning machine body having a cleaning chamber for cleaning an object to be cleaned, a machine chamber for accommodating a gas booster for heating water to be supplied to the cleaning chamber, and a door movably provided for opening and closing the cleaning chamber;
an exhaust pipe that is disposed at least partially along an outer surface of the cleaning machine body other than the door and extends vertically, and that discharges exhaust gas from the gas booster from an exhaust port at an upper end in the extension direction;
a spacer portion that is provided in the exhaust tube and that protrudes toward an opposite side to a side on which the outer surface is disposed as viewed from the exhaust tube ,
A cleaning machine , wherein the spacer portion is formed by bending a part of a member constituting the exhaust stack . a cleaning machine body having a cleaning chamber for cleaning an object to be cleaned, a machine chamber for accommodating a gas booster for heating water to be supplied to the cleaning chamber, and a door movably provided for opening and closing the cleaning chamber;
an exhaust pipe that is disposed at least partially along an outer surface of the cleaning machine body other than the door and extends vertically, and that discharges exhaust gas from the gas booster from an exhaust port at an upper end in the extension direction;
a spacer portion that is provided in the exhaust tube and that protrudes toward an opposite side to a side on which the outer surface is disposed as viewed from the exhaust tube ,
The exhaust pipe extends vertically above the cleaning machine body,
The exhaust port is covered from above in the vertical direction and opens toward the cleaner body in a plan view seen from above in the vertical direction . a cleaning machine body having a cleaning chamber for cleaning an object to be cleaned, a machine chamber for accommodating a gas booster for heating water to be supplied to the cleaning chamber, and a door movably provided for opening and closing the cleaning chamber;
an exhaust pipe that is disposed at least partially along an outer surface of the cleaning machine body other than the door and extends vertically, and that discharges exhaust gas from the gas booster from an exhaust port at an upper end in the extension direction;
a spacer portion that is provided in the exhaust tube and that protrudes toward an opposite side to a side on which the outer surface is disposed as viewed from the exhaust tube ,
The exhaust pipe has a main body member that extends linearly from below to above in a vertical direction, and an exhaust port forming member that is detachably provided at an upper end of the main body member in the vertical direction and forms the exhaust port,
The spacer portion is formed on the exhaust port forming member . a cleaning machine body having a cleaning chamber for cleaning an object to be cleaned, a machine chamber for accommodating a gas booster for heating water to be supplied to the cleaning chamber, and a door movably provided for opening and closing the cleaning chamber;
an exhaust pipe that is disposed at least partially along an outer surface of the cleaning machine body other than the door and extends vertically, and that discharges exhaust gas from the gas booster from an exhaust port at an upper end in the extension direction;
a spacer portion that is provided in the exhaust tube and that protrudes toward an opposite side to a side on which the outer surface is disposed as viewed from the exhaust tube ,
The cleaning machine body further includes two support columns that hold and guide the door so that the door can move in a vertical direction, and a rear panel that connects the two support columns,
When the direction in which the door is held by the pillar is defined as the front, the rear panel is provided in a state offset forward with respect to a rear surface portion on a rear side of the pillar,
A cleaning machine in which the exhaust stack is positioned so as to straddle both one of the pillars and the rear panel in the opposing direction of the two pillars, with a portion of the front surface of the exhaust stack being positioned in contact with the rear surface of one of the pillars, and the remaining portion of the front surface being positioned at a distance from the rear panel .

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