JP6545041B2 - Dishwasher - Google Patents

Description

  BACKGROUND OF THE INVENTION Field of the Invention The present invention relates to a dish washer provided with noise countermeasures.

  BACKGROUND Conventionally, a built-in type dishwasher is known to be incorporated into a system kitchen. The built-in type dishwasher is comprised of a case with an open front, a cleaning vessel provided so as to be extractable from the case and having an open upper side, a drawer mechanism for guiding the withdrawal of the cleaning vessel, and a cleaning vessel. A front panel is provided with a predetermined gap on the outer surface of the front wall, and the front panel of the case is opened and closed by the pulling operation of the washing tank (see, for example, Patent Document 1).

  The dishes stored in the washing tank are washed with washing water jetted high pressure from a washing nozzle provided inside the washing tank. Washing water sprayed at high pressure from the washing nozzle scatters inside the washing tank and strikes the dishes to wash away dirt adhering to the dishes.

  However, washing water jetted at high pressure from the washing nozzle not only hits dishes but also reaches the inner peripheral wall of the washing tank in many cases. When the washing water hits the inner circumferential wall of the washing tank, a collision noise of the washing water is generated from the circumferential wall of the washing tank. When the collision noise of the washing water generated at the peripheral wall of the washing tank leaks to the outside of the machine, the collision noise at this time becomes noise, which is unpleasant for the user.

  The built-in type washing basin is drawn forward, and the periphery of the case excluding the front side is housed inside the system kitchen. For this reason, noise generated from the cleaning tank is considered to be relatively unlikely to leak to the outside, and no noise countermeasure has been taken.

Unexamined-Japanese-Patent No. 2007-275603

However, in the type of dishwasher to draw cleaning tank forward leakage noise is generated centrally from the front surface side is an open side of the housing. Therefore, when the user is positioned in front of the dishwasher, there is a disadvantage that he feels rather loud.

  Then, it is possible to connect and fix the shielding member which shields the sound which generate | occur | produces from the inside of a washing tank at the time of washing | cleaning of tableware in the front wall of a washing tank, and to block transmission of the sound to a front panel.

  However, in consideration of the influence of manufacturing variations in the cleaning tank, it is not possible to attach a shielding member having a large shape to the cleaning tank. That is, the cleaning tank is pulled out from the front open side of the housing. When the shielding member having a relatively large shape is attached to the cleaning tank, if the mounting position of the shielding member is shifted due to the manufacturing variation of the cleaning tank, the shielding member may interfere with the housing.

  As described above, in a built-in type dishwashing machine having a cleaning tank drawn forward, it is difficult to sufficiently reduce noise because the shielding member provided in front can not be made so large.

  In view of the above-mentioned point, the present invention aims to provide a dish washing machine which is suitably adopted for a washing tank drawn forward to surely reduce noise at the time of washing.

In order to achieve the above object, the present invention provides a housing having an open front, a cleaning tank which can be drawn out from the housing and has an upper opening, and a drawer mechanism for guiding the drawer of the cleaning tank. and parts, the front wall outer surface of the cleaning tank is provided with presence a predetermined gap e Bei a front panel for opening and closing the front surface of the housing by the extraction operation of the cleaning tank, the drawer mechanism section, wherein a plurality of fixed rails extending in the drawing direction of the cleaning tank is provided in the housing, is attached to the cleaning tank, Ru and a plurality of movable rail that is slidably guided in the longitudinal direction of the fixed rail In the warewashing machine, a plate-like shielding member is provided between the front wall of the washing tank and the front panel to shield the sound generated from the inside of the washing tank when the dishes are washed, and the shielding member is the drawer straight to the movable rail mechanism Characterized in that it is connected.

  The pullout mechanism has a highly accurate movable mechanism so that the pullout operation of the cleaning tank can be smoothly performed. Therefore, the shielding member can be provided without being affected by manufacturing variations of the cleaning tank by supporting the shielding member on the pullout mechanism. Thereby, the shielding member formed so as to cover the front wall outer surface of the cleaning tank as large as possible within the range not interfering with the housing can be provided, and the shielding member reliably reduces the noise during the cleaning. it can.

  Further, in the present invention, it is preferable that the shielding member is provided with a convex line for deflection prevention that protrudes from a surface on at least one side.

  By providing the convex member for deflection prevention in the shielding member, the rigidity of the shielding member is increased, and the vibration of the air emitted from the front wall of the cleaning tank can be reliably reflected by the shielding member. The sound generated from can be attenuated efficiently. According to this, even if the shielding member is formed relatively thin, it is possible to shield the sound generated from the inside of the cleaning tank. Therefore, the shielding member can be easily provided even if the space between the front wall and the front panel of the cleaning tank is narrow.

  Furthermore, the ridges are preferably provided along the outer peripheral edge of the shielding member. As a result, air between the front wall of the washing tank and the shielding member is less likely to flow to the outside of the outer peripheral edge of the shielding member, so that sound leakage from the outer peripheral edge of the shielding member to the outside can be suppressed.

Further, in the present invention, the movable rail of the pullout mechanism portion is attached to a leg wall portion extending in the pullout direction and provided so as to project downward from a bottom corner portion of the cleaning tank .

  The cleaning tank includes a leg wall extending downward from the bottom corner and extending in the pull-out direction, and the movable rail is provided on the leg wall. The movable rail supports the shielding member. As a result, the shielding member can be provided without being affected by manufacturing variations of the cleaning tank, and noise during cleaning can be reliably reduced.

The figure which shows typically the structure of the dishwasher of embodiment of this invention. BRIEF DESCRIPTION OF THE DRAWINGS The perspective view which shows the external appearance of the dishwasher of this embodiment. Explanatory sectional drawing which shows the structure of a drawing-out mechanism part typically. FIG. 4A shows the front space of the cleaning tank exposed. FIG. 4B is a view showing a front space of the cleaning tank closed by a shielding member. The perspective view which shows the connection state of a shielding member and a movable rail.

  An embodiment of the present invention will be described based on the drawings. As shown in FIG. 1, the dishwasher 1 is provided with a washable tub 3 that can be drawn out inside the housing 2. The front of the housing 2 is closed by a system kitchen (not shown) and a front panel 4 of a uniform design, as shown in FIG. The front panel 4 is attached to the front side of the cleaning tank 3 as shown in FIG.

  As shown in FIG. 1, the washing tank 3 is formed in a box shape with an open upper portion, and accommodates the dishes 5 inside. The tableware 5 is accommodated in the washing tank 3 while being supported by the tableware basket 6.

  Inside the cleaning tank 3, a cleaning nozzle 7 for applying cleaning water to the dishes 5 is provided. The cleaning nozzle 7 is composed of a tower nozzle 8 and a swing nozzle 9, and sprays washing water from injection ports 10 formed in each of the tower nozzle 8 and the swing nozzle 9.

  The swirl nozzle 9 is connected to the lower end of the tower nozzle 8 and swirls by the water pressure of the washing water. The turning of the turning nozzle 9 also rotates the tower nozzle 8.

  The tower nozzle 8 is composed of an upper nozzle 8a and a lower nozzle 8b, and the upper nozzle 8a extends upward from the inside of the lower nozzle 8b by water pressure. In FIG. 1, the tower nozzle 8 in the extended state is shown.

  Water is supplied to the cleaning tank 3 via the water supply pipe 12 prior to the cleaning operation, and water (tap water or the like) at this time is used as cleaning water. A heater 13 for heating washing water is provided at the bottom of the washing tank 3, and a suction recess 15 is provided at the bottom of the washing tank 3. The washing water in the suction recess 15 is sent to the washing nozzle 7 by the pump 16.

  The pump 16 rotates forward to send the cleaning water of the suction recess 15 to the cleaning nozzle 7, and reversely discharges the cleaning water of the suction recess 15. The washing water is drained out of the machine through the drain pipe 17 when the washing operation is finished.

  A cover plate 18 is provided above the cleaning tank 3. The cover plate 18 is opened and closed by an elevating mechanism (not shown), and is lowered when the cleaning tank 3 is accommodated in the housing 2 to close the cleaning tank 3 and the cleaning tank 3 is pulled out from the housing 2 And the upper part of the cleaning tank 3 is opened.

  A drying fan 19 is disposed behind the cleaning tank 3. The drying fan 19 sends drying air to the inside of the washing tank 3 through the air intake passage 20 to dry the dishes 5 during the drying operation performed after the end of the washing operation (including the rinse). Between the washing tank 3 and the front panel 4, an exhaust path 21 for leading the drying air sent from the drying fan 19 to the inside of the washing tank 3 is provided.

  As shown in FIG. 3, the cleaning tank 3 can be pulled out of the housing 2 by the drawer mechanism 22. The pullout mechanism portion 22 includes a fixed rail 23 provided in the housing 2 and a movable rail 24 provided in the cleaning tank 3.

  The fixed rail 23 and the movable rail 24 have an elongated shape extending in the drawing direction of the cleaning tank 3. The movable rail 24 is slidably guided by the fixed rail 23 to move in the longitudinal direction.

The cleaning tank 3 is formed of a synthetic resin. The fixed rail 23 and the movable rail 24 are made of metal and formed in a shape that is not easily deformed.
Thereby, even if manufacturing variations (errors) or distortion during use occur in the cleaning tank 3, the drawing operation of the cleaning tank 3 is smoothly performed by the drawing mechanism portion 22 by the fixed rail 23 and the movable rail 24. It will be.

  Furthermore, the movable rail 24 is attached to a leg wall 3 a that protrudes downward from the bottom corner of the cleaning tank 3 and extends in the withdrawal direction.

  As shown in FIG. 1, a plate-like shielding member 25 is provided between the front wall 3 b of the cleaning tank 3 and the front panel 4 to shield the sound generated from the inside of the cleaning tank 3 during the cleaning operation. More specifically, as shown in FIG. 4A, the cleaning tank 3 has a front space 26 formed via the front wall 3b. Inside the front space 26, a control unit 27 made of an electric component, an exhaust passage 21 and the like are accommodated. As shown to FIG. 4B, the shielding member 25 which obstruct | occludes the front space 26 is provided.

  The shielding member 25 is formed of a synthetic resin in a plate shape, and as shown in FIG. 5, is screwed to the front end of the movable rail 24 via a rail connecting portion 25a provided at the lower end. In addition, although the movable rail 24 is attached to the washing tank 3, the washing tank 3 is abbreviate | omitted in FIG. 5 for convenience of explanation.

  As shown in FIG. 5, on one surface of the shielding member 25 (in the present embodiment, the surface facing the front wall 3b of the cleaning tank 3), lattice-shaped beads 25b are formed to project in a lattice shape. Further, a frame-shaped bead 25 c is formed to project toward the front wall 3 b of the washing tank 3 along the contour of the shielding member 25. The lattice beads 25 b and the frame beads 25 c correspond to the ridges of the present invention.

  By providing the grid-like beads 25 b and the frame-like beads 25 c with the shielding member 25, the rigidity of the shielding member 25 becomes high, and the shielding member 25 reliably reflects the vibration of air emitted from the front wall 3 b of the washing tank 3. it can. Therefore, the shielding member 25 can efficiently attenuate the sound generated in the cleaning tank 3. In addition, the air in the front space 26 of the cleaning tank 3 does not easily flow to the outside of the outer peripheral edge of the shielding member 25 by the frame-shaped bead 25 c, and the ventilation between the front space 26 and the outside is suppressed. Sound leakage to the outside of the aircraft can be suppressed.

  Furthermore, the shielding member 25 is provided with the lattice bead 25b and the frame bead 25c, so it is difficult to bend even if it is formed in a relatively thin plate shape, and light is reliably reflected while lightening to prevent transmission of sound. it can.

  Further, the shielding member 25 is held between the front wall 3 b of the cleaning tank 3 and the front panel 4 by being connected to the movable rail 24. Since the movable rail 24 maintains high accuracy even if manufacturing variations or distortion during use of the cleaning tank 3 occur, the shielding member 25 is connected to the movable rail 24 so that the cleaning tank 3 to the shielding member 25 Can prevent the negative effects of Furthermore, the movable rail 24 is attached to the leg wall portion 3 a that protrudes downward from the bottom corner of the cleaning tank 3 and extends in the withdrawal direction, whereby the movable rail 24 is provided at a position separated from the inside of the cleaning tank 3. The transmission of sound from the movable rail 24 to the shielding member 25 can also be suppressed to a low level.

  In addition, in this embodiment, although the shielding member 25 provided with the lattice-like bead 25b and the frame-like bead 25c was shown, the shape of a bead (convex line) is not restricted to this. In addition, as long as the shielding member 25 has sufficient strength with little bending, only either one of the lattice bead 25b and the frame bead 25c may be provided, or the lattice bead 25b and It is not necessary to provide both of the frame-shaped bead 25c.

  DESCRIPTION OF SYMBOLS 1 ... Dishwashing machine, 2 ... Housing | casing 3, 3 ... Washing tank, 3a ... Leg wall part, 3b ... Front wall, 4 ... Front panel, 5 ... Tableware, 22 ... Drawout mechanism part, 23 ... Fixed rail, 24 ... Movable rail, 25: shielding member, 25b: lattice-like bead (convex line), 25c: frame-like bead (convex line).

Claims (4)

A housing whose front is open, a cleaning tank which can be drawn out from the housing and whose top is open, a drawer mechanism which guides the drawer of the cleaning tank, and a front wall outer surface of the cleaning tank Bei example a front panel for opening and closing the front of the provided presence of voids the housing by the extraction operation of the cleaning tank, the drawer mechanism section, pull-out direction of the cleaning tank provided in the housing a plurality of fixed rails extending, the attached to the cleaning tank, in a dishwasher Ru and a plurality of movable rail that is slidably guided in the longitudinal direction of the fixed rail,
Between the front wall of the washing tank and the front panel, there is provided a plate-like shielding member which shields the sound generated from the inside of the washing tank when washing dishes.
The dishwashing machine according to claim 1, wherein the shielding member is directly connected to the movable rail of the drawer mechanism. In the dishwasher according to claim 1,
The dishwashing machine according to claim 1, wherein the shielding member includes a deflection preventing ridge protruding from a surface on at least one side. In the dishwasher according to claim 2,
The said ridge is provided along the outer periphery of the said shielding member, Dishwasher characterized by the above-mentioned. In the dishwasher according to any one of claims 1 to 3,
Wherein said movable rail of the drawer mechanism section, dishwasher, characterized in that attached to the leg wall portions extending in the drawing direction which is provided projecting downwardly from the bottom corners of the front Symbol cleaning tank.