JP3831637B2 - dishwasher - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a dishwasher, and more particularly to a drawer-type dishwasher suitable for a built-in type for incorporation into a system kitchen.
[0002]
[Prior art]
In general, a dishwasher for home use introduces tap water into the washing cabinet and stores it at the bottom, and then operates the pump to suck in the stored water and feed it to the nozzle. The tableware stored in the washing cabinet is washed by spraying the water. In the conventional dishwasher of this type, a washing cabinet is fixedly arranged inside the housing, and a door that rotates downward is provided on the front surface of the housing. The tableware is pulled out horizontally from the front.
[0003]
On the other hand, a so-called drawer-type dishwasher is known separately from such a dishwasher. That is, in the drawer type dishwasher, the washing cabinet that houses the tableware for storing the dishes is configured to be able to be drawn forward together with the door that also serves as the front panel, and when the washing cabinet is pulled out, the upper surface of the washing cabinet is It is wide open so that tableware can be taken in and out from above, and the upper lid that was retracted to the upper space inside the housing is lowered while the washing cabinet is pushed into the housing to close the top opening of the washing cabinet It has a structure to do.
[0004]
Such drawer-type dishwashers have been known for a long time as disclosed in, for example, U.S. Pat. No. 2,661,750 and U.S. Pat. No. 2,668,091, but in recent years, with the spread of system kitchens to general households in Japan, It has begun to attract attention as a built-in type dishwasher for incorporation. Along with this, improvements in various aspects such as improved operability have been proposed for drawer-type dishwashers (see, for example, Japanese Patent Laid-Open No. 2000-139799).
[0005]
[Problems to be solved by the invention]
However, there are some problems in the conventionally known drawer-type dishwasher as described below.
[0006]
(1) The conventional dishwasher described in JP 2000-139799 A has a structure in which the upper lid is mechanically moved up and down in conjunction with the user's operation of pulling out and pushing in the washing cabinet. In such a structure, since a part of the force applied from the outside during the pulling / pushing operation is used as the force for moving the upper lid up and down, the pulling / pushing operation tends to be heavy. Especially when a large amount of tableware is stored in the washing cabinet, the weight of the washing cabinet itself is quite large, so if a part of the operation force is diverted to the vertical movement of the upper lid, for elderly people, etc. May be difficult to remove.
[0007]
On the other hand, in the conventional dishwasher described in the above U.S. Pat. No. 2,661,750, an upper lid pressing mechanism that rotates integrally with an operation lever provided on the front surface of the casing is disposed in the upper space of the upper lid, and is operated by the user. In accordance with the operation of the lever, the upper lid moves up and down to close the upper surface opening of the cleaning cabinet. However, in such a structure, a large space must be ensured in the upper part of the upper lid, and the volume of the cleaning cabinet must be reduced accordingly. Moreover, even if the upper lid pressing mechanism presses the center of the upper lid, it is difficult to ensure sufficient adhesion at a place where the upper lid around the upper lid and the upper edge of the cleaning cabinet are in contact with each other, and water leakage is likely to occur. There is also a problem.
[0011]
The present invention has been made to solve various problems related to the drawer-type dishwasher including the above-mentioned problems. The first object of the present invention is to provide a drawer in a drawer-type dishwasher. The upper lid can be opened and closed without using the force applied from the outside during pull-out / push-in operation, and the volume of the washing cabinet can be secured without occupying a large space. An object of the present invention is to provide a dishwasher having an upper lid opening / closing mechanism.
[0015]
[Means for solving the problems and effects]
  The first dishwasher according to the present invention, which has been made to solve the above-mentioned problems, is provided with a washing cabinet having an opening for storing and taking out dishes on the upper surface so that it can be pulled out forward from a housing having an open front. In the dishwasher,
  a) an upper lid for closing the upper opening of the cleaning cabinet;
  b) a pair of left and right upper lid holding means provided between the side wall of the housing and the upper lid to hold the upper lid so as to be movable up and down inside the housing;
  c) on the front plate attached to the front surface of the washing cabinet, and operating means that moves between two positions in response to a manual operation by the user;
  d) arranged in the gap between the left and right side walls of the washing cabinet and the left and right side walls of the housing facing each other;Including a wire rope pulled in response to an operation by the operation means;A pair of left and right operating force transmitting means for transmitting a force manually operated by the operating means to the upper lid holding means to move the upper lid up and down;Prepared,
  The operation means also serves as an operation of a latch means for preventing the cleaning chamber from being pulled out from a state accommodated in the housing or releasing the prevention.
  By manual operation to one position of the operation means in a state where the washing cabinet is housed in a housing, the wire rope is pulled, the upper lid is moved down and the upper surface opening of the washing cabinet is closed, and The latch means prevents the washing chamber housed in the housing from being pulled out,
  By manual operation of the operation means to the other position, the wire rope is released by pulling, the upper lid is moved upward, the upper surface opening of the washing cabinet is opened, and the blocking prevention of the washing cabinet by the latch means is released. ,
  It is characterized by that.
[0016]
In the first dishwasher, when the user applies a force to move the operating means from the first position to the second position in a state where the washing cabinet is completely accommodated in the housing, the mechanical force Is transmitted to the upper lid holding means via the operating force transmitting means disposed in the gap between the left and right side walls of the cleaning cabinet and the left and right side walls of the housing facing the cleaning cabinet. Close the top opening.
[0017]
Here, one aspect of the upper lid holding means includes two front and rear connecting members, one end of which is rotatably attached to the inner surface of the side wall of the casing and the other end of which is rotatably connected to the side portion of the upper lid. A parallel link mechanism may be included, and the two connecting members may be configured to move the upper lid in the vertical direction while rotating while maintaining a substantially parallel state to each other.
[0018]
Here, the rotatable linkage between the connecting body and the upper lid may be a shaft that is rotatably mounted, but the shaft is not completely fixed, and, for example, is movable within a predetermined narrow range in a substantially horizontal direction. It may be loosely attached. According to such a configuration, the upper lid does not move up and down by swinging while being supported by the connecting body, but can move up and down substantially vertically without moving back and forth.
[0019]
Also, one aspect of the operating force transmission means includes a linear member that is pulled in response to an operation by the operating means, and an operating force applying unit that operates the parallel link mechanism by pulling the linear member. It can be. Still further, the upper lid holding means includes first urging means for urging the upper lid in the upward direction, and the operating force application unit moves the parallel link mechanism to the first urging means by pulling the linear member. It can be set as the structure which descend | falls the said upper cover by operating in the direction which resists the urging | biasing force by.
[0020]
According to this configuration, when the user operates the operation unit as described above in a state where the cleaning cabinet is completely pushed into the housing, the linear member of the operating force transmission unit is pulled according to the operation, By the pulling operation of the linear member, the actuating force applying unit drives the connecting body of the parallel link mechanism almost simultaneously to lower the upper lid, and closes the upper surface opening of the cleaning cabinet. On the other hand, when the user operates the operation means in the opposite direction, the pulling of the linear member is released, and the connecting member of the parallel link mechanism is rotated in the opposite direction by the urging force of the first urging means. Then, the upper lid rises and the upper surface opening of the cleaning cabinet is opened. Therefore, in this state, it becomes possible to pull out the cleaning cabinet forward.
[0021]
As described above, according to the first dishwasher according to the present invention, the force is applied to the upper lid holding means via the operating force transmitting means respectively arranged in the narrow gap between the both side walls of the washing cabinet and the both side walls of the casing. Therefore, a large space is not occupied in the housing in order to move the upper lid up and down. Therefore, a large volume of the washing cabinet can be secured, and the number of tableware that can be accommodated in the washing cabinet can be increased. In addition, since the operating force transmission means is arranged on both the left and right sides, and the force is transmitted to the left and right upper lid holding means, the upper lid receives a pulling force at a position close to the periphery, that is, a contact portion with the cleaning cabinet. Thus, the adhesion with the upper edge of the cleaning cabinet is improved. Furthermore, in the first dishwasher of the present invention, since the force for pulling out and pushing in the washing cabinet is not used for the vertical movement of the upper lid, the washing cabinet pulling out and pushing in operation is smoothly applied with a large force. Can be done without.
[0022]
In the first dishwasher, it is further preferable that the operating force transmission means includes a second urging means having an urging force in a direction opposite to the traction force in the traction path via the linear member. . According to this configuration, even when the upper lid is tilted to the left or right due to an imbalance in the operation of the left and right upper lid holding means, the second biasing means is extended to be applied to the upper lid holding means. Since the power is adjusted, the entire upper lid is in close contact with the upper edge of the cleaning cabinet almost uniformly. Therefore, a high water sealing property can be ensured at the close contact portion between the cleaning cabinet and the upper lid.
[0023]
Furthermore, the operation means may be configured to also operate the latch means for preventing the washing chamber from being pulled out from the state where the washing cabinet is housed in the housing or releasing the prevention.
[0024]
According to this configuration, when the upper lid is closed, the drawer of the cleaning cabinet is surely prevented, and conversely, when the latch is released so that the drawer can be pulled out, the upper lid is surely raised. Therefore, it is possible to prevent an unnecessary load from being applied to the contact portion between the cleaning cabinet and the upper lid by forcibly pulling out the cleaning cabinet even though the upper lid is closed. It will be easy.
[0057]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, a dishwasher according to an embodiment of the present invention will be described with reference to the drawings. First, the overall configuration of the dishwasher of the present embodiment (hereinafter referred to as “first embodiment”) will be described with reference to FIGS. 1 and 2. 1 and 2 are schematic longitudinal sectional views showing the overall configuration of the dishwasher. FIG. 1 shows a state in which the washing cabinet is completely housed in the casing, and FIG. 2 shows a state in which the washing cabinet is being pulled out of the casing. is there.
[0058]
A cleaning cabinet 2 having an upper surface opening 3 is disposed inside the housing 1 whose front surface is open, and a table bowl 4 for arranging dishes is arranged inside the cleaning cabinet 2. In the upper space in the housing 1, an upper lid 5 for closing the upper surface opening 3 of the cleaning cabinet 2 is arranged to be movable up and down by a pair of left and right parallel link mechanisms including a pair of front and rear links 6 and 6 ′. Yes. A front panel 7 also serving as a door that closes the front opening of the casing 1 is detachably attached to the front wall 2a of the cleaning cabinet 2, and the front panel 7 and the cleaning cabinet 2 are integrated with the casing 1 as a unit. It can be pulled out forward along the guide rails 8 that are installed substantially horizontally on the inner sides of the two side walls.
[0059]
An upper portion of the front panel 7 has a slope portion 7a protruding like a bowl, and an operation panel 9 including various operation keys and a display is provided on the slope portion 7a. The lower side of the slope portion 7a is formed in a handle portion 10 that is recessed inward, and the handle portion 10 is provided with an operation lever 11 that can be rotated in the left-right direction as the operation means. The left and right pivoting operation of the operation lever 11 is linked to the latch bar 12 which is the latch means and projects upward between the front wall 2a of the cleaning cabinet 2 and the front panel 7, and is operated by the user. In conjunction with the operation of the lever 11, the drawer operation of the cleaning cabinet 2 can be blocked (that is, latched) or the blocking can be released.
[0060]
As will be described in detail later, in the present dishwasher, in addition to the latch bar 12, the upper lid 5 is moved up and down, that is, the upper surface opening 3 of the washing cabinet 2 is closed and opened in conjunction with the operation of the operation lever 11. Has been. That is, as shown in FIG. 1, when the operation lever 11 is rotated in the latch direction in a state where the cleaning chamber 2 is completely stored in the housing 1, the latch bar 12 is rotated and the cleaning chamber 2 cannot be pulled out. The upper lid 5 descends and comes into close contact with the upper surface of the cleaning cabinet 2 to close the upper surface opening 3 while being locked in the state. On the other hand, when the user rotates the operation lever 11 in the latch release direction, the upper lid 5 rises and does not come into contact with the upper surface opening 3 of the cleaning cabinet 2 as shown in FIG. Since it is cancelled | released, the washing | cleaning store | warehouse | chamber 2 can be freely drawn out from the inside of the housing | casing 1 now.
[0061]
A retractable water supply hose 13 having a water supply valve (not shown) is connected to the rear of the cleaning cabinet 2. When the water supply valve is opened, water supplied from an external water tap or the like passes through the water supply hose 13 and the cleaning cabinet 2. Poured into. A water tank 14 that is greatly depressed is communicated with the bottom surface of the front part of the washing chamber 2, and water poured into the washing chamber 2 flows into the water tank 14 and is stored therein. A mesh-like filter 15 is detachably provided on the upper portion of the water storage tank 14 for collecting food residues that flow down from the dishes when washing the dishes. A rotatable nozzle arm 16 having a plurality of water ejection holes formed on the upper surface is provided at the center of the bottom of the cleaning chamber 2, and a cleaning and draining pump 17 is disposed below the bottom surface of the cleaning chamber 2. The washing and draining pump 17 includes a motor that can be driven to rotate in both directions. When this motor rotates in the forward direction, the washing and draining pump 17 functions as a washing pump, and when it rotates in the reverse direction, it functions as a drainage pump. To do.
[0062]
As shown in FIG. 1, when the cleaning cabinet 2 is completely stored in the housing 1 and the cleaning operation or the rinsing operation is performed, a water supply valve (not shown) is opened and water is supplied into the cleaning cabinet 2 through the water supply hose 13. Is supplied. The water supplied into the cleaning chamber 2 is collected at the bottom of the cleaning chamber 2 including the water storage tank 14. This stored water is heated appropriately by the heater 18 disposed at the bottom of the washing chamber 2. When the washing and drainage pump 17 is driven as a washing pump in this state, the hot water sucked from the water storage tank 14 is pumped to the nozzle arm 16 and is injected into the washing chamber 2 from the water ejection hole. The nozzle arm 16 is rotated by the momentum of this injection. Thereby, water sprays on the tableware accommodated in the tableware bowl 4, and stain | pollution | contamination falls. The food residue adhering to the tableware is collected by the filter 15, and the water flows into the water storage tank 14 and circulates again.
[0063]
In addition, although description is abbreviate | omitted because a figure becomes complicated, between the front wall 2a and the front panel 7 of the washing | cleaning store | warehouse | chamber 2, the ventilation means and ventilation means containing a ventilation fan etc. are provided, and drying is carried out. During the stroke, the outside air is supplied into the cleaning cabinet 2 by the air blowing means, and the outside air is heated by the heater 18 to hit the tableware, and the air containing water vapor emitted from the tableware is discharged to the outside by the exhaust means. Yes.
[0064]
One of the main features of the dishwasher is the opening / closing drive mechanism of the upper lid 5. Next, this will be described in detail with reference to FIGS. 3 and 4 are side configuration views of the main part centering on the opening / closing drive mechanism of the upper lid 5, FIG. 3 is a state in which the cleaning cabinet 2 is completely stored in the casing 1, and FIG. It is in the state of being pulled out from the body 1. FIG. 5 is a front view of the main part centering on the opening / closing drive mechanism of the upper lid 5. 6 is a top view of the main part around the operating lever constituting the opening / closing drive mechanism of the upper lid 5, FIG. 7 is a front view of the same main part, FIG. 8 is an enlarged view of the vicinity of A part in FIG. 3, and FIG. 8 is a cross-sectional view taken along the line DD ′ in FIG.
[0065]
One link 6 (or 6 ') constituting the parallel link mechanism is a substantially L-shaped plate member, and the short side portion of the L-shape functions as a connecting body. As shown in FIGS. 8 and 9, an oblong hole 6a that is elongated in the front-rear direction is opened at the front end of the short piece, and a cylindrical shaft 5a that is screwed to the side surface of the upper lid 5 in the hole 6a. The upper lid 5 is slidable in the front-rear direction within a range determined by the length of the hole 6a. On the other hand, the other end portion of the short piece portion, that is, the center portion of the L-shape is rotatably supported by a screw 6b screwed to the inner surface of the side wall 1a of the housing 1.
[0066]
Further, the end portions of the long pieces of the two front and rear links 6, 6 'are pivotally attached to both end portions of the working plate 20 extending substantially horizontally by screws 6c, 6c', respectively. It functions as an operating force application unit included in the operating force transmission means. A position restricting plate 28 is fixed to the inner surface of the side wall 1a of the housing 1 in front of the cylindrical shaft 5a so as to protrude to a position in contact with the head of the cylindrical shaft 5a. Further, although not shown, a position restricting plate 28 'is fixed to the rear side link 6' in the same manner behind the cylindrical shaft corresponding to the cylindrical shaft 5a. That is, although the upper lid 5 is slidable in the front-rear direction as described above, the movement in the front-rear direction is actually restricted by the front-rear position restricting plates 28, 28 '. As a result, when the links 6 and 6 'rotate with respect to the housing 1 around the screw 6b, the upper lid 5 moves up and down substantially vertically. The operation plate 20 moves back and forth in a state where it is maintained substantially parallel to the upper lid 5 and horizontally.
[0067]
One end of a coil spring 21 installed substantially horizontally as a first biasing means is connected to the long piece of the link 6 'on the rear side, and the other end of the coil spring 21 is connected to the inner side surface of the side wall 1a of the housing 1. It is fixed. The coil spring 21 is biased so that the link 6 ′ rotates in the clockwise direction in FIG. 3 around the screw 6b ′, so that the upper lid 5 is lifted upward around the screws 6b and 6b ′. It is energized.
[0068]
One end of a wire rope constituting a wire 23 as a linear member which is a part of the operating force transmission means is inserted into the front end portion of the operating plate 20 through a small coil spring 22 as a second urging member. It is fixed. The wire 23 has a configuration in which a wire rope is slidably inserted through the tube, and one end 23a of the tube has a side wall 1a of the housing 1 on the rear side of the connection portion between the operation plate 20 and the wire rope. It is fixed to the inner surface. The wire 23 extends rearward from the connecting portion and is arranged downward in a large arc, and is sent forward along a wire guide groove 24 formed substantially horizontally on the outer side surface of the side wall of the cleaning cabinet 2. Furthermore, it is led to the gap between the front panel 7 and the front wall 2a of the cleaning cabinet 2. In addition, the wire 23 'is similarly arrange | positioned on the opposite side surface of this dishwasher which does not appear in FIG. 3, FIG.
[0069]
As shown in FIGS. 6 and 7, the operation lever 11 is fixed to a rotating member 25 extending in the vertical direction, and both are integrally centered on a shaft 25 a with respect to an attachment member 26 fixed to the front panel 7. It is freely rotatable within a predetermined range. A coil spring 27 is installed between the rotating member 25 and the mounting member 26. Since the coil spring 27 extends more in the center than at both ends of the rotation range of the operation lever 11, the coil spring 27 is urged to rotate in both directions when the operation lever 11 is substantially in the center of the rotation range. Therefore, for example, when the operation lever 11 in the latch release position is to be rotated in the latch direction, the operation lever 11 must first be rotated against the urging force of the coil spring 27, so that a certain amount of force is applied. Although it is necessary, when the operation lever 11 passes through the approximate center of the rotation range, the urging force of the coil spring 27 acts to assist the rotation, so that the operation lever 11 can reach the latch position without applying a large force. Moving.
[0070]
As shown in FIGS. 5 and 7, the other ends 23 b and 23 b ′ of the tubes of both wires 23 and 23 ′ are fixed to the mounting member 26, and the ends of the wire ropes are fixed to the rotating member 25. ing. Accordingly, when the operation lever 11 is in the latch position, the wire rope is pulled by the rotating member 25 that rotates integrally with the operation lever 11, and when the operation lever 11 is returned to the latch release position, the pulling of the wire rope is released. The
[0071]
As described above, when the operation lever 11 is rotated to the latch position and the wire rope is pulled, the operation plate 20 is pulled backward against the compression biasing force of the coil spring 21. Since the rotating member 25 simultaneously pulls the wire ropes of the left and right wires 23 and 23 'by substantially the same length, the left and right actuating plates 20 move rearward in the same manner, whereby the upper lid 5 is substantially vertical. The upper surface opening 3 of the cleaning cabinet 2 is closed. Even when there is an imbalance due to an imbalance in the operation of the parallel link mechanisms on the left and right sides due to an imbalance in the assembly process and parts, the coil spring 22 interposed between the wire rope and the operation plate 20 is used. The imbalance is corrected by the action of. That is, when such an imbalance causes the upper lid 5 to descend while tilting left and right, and when the lower surface of the upper lid 5 first contacts the upper edge of the cleaning cabinet 2 on either the left or right side, the coil spring 22 The traction force is absorbed by the extension, and the traction force acts on the other side as it is, and the upper lid 5 is lowered. Then, after the entire upper lid 5 closes the upper surface opening 3 of the cleaning cabinet 2, a pressing force acts almost uniformly on the entire surface, so that the entire area of the contact between the upper lid 5 and the upper edge of the cleaning cabinet 2 extends over the entire circumference. High water-sealing property.
[0072]
When the operation lever 11 is rotated from the latch position to the latch release position, the rotation member 25 is rotated integrally to release the pulling of the wire ropes of the left and right wires 23, 23 ′. Then, the left and right operation plates 20 move forward by the compression force of the coil spring 21. As a result, the upper lid 5 rises substantially vertically and opens the upper surface opening 3 of the cleaning cabinet 2.
[0073]
Thus, in this dishwasher, the drawer | drawing-out of the washing | cleaning store | warehouse | chamber 2 can be prevented according to the turning operation of the operation lever 11 by a user, or it can cancel | release, and the upper cover 5 can be closed or opened. Such an opening / closing driving operation of the upper lid 5 is performed via wires 23 and 23 ′ disposed in a narrow gap formed between the outer side wall of the cleaning cabinet 2 and the inner side wall 1 a of the housing 1. Therefore, it does not occupy a large space in the housing 1 and is advantageous in securing a large volume of the cleaning cabinet 2.
[0074]
Next, the water sealing structure of the contact part of the upper cover 5 and the washing | cleaning store | warehouse | chamber 2 which is the other characteristic of this dishwasher is demonstrated with reference to FIGS. 10 and 11 are longitudinal sectional views showing a detailed configuration of a contact portion between the upper edge of the cleaning cabinet 2 and the upper lid 5, FIG. 10 is a state where the upper lid 5 is raised, and FIG. 11 is a state where the upper lid 5 is lowered. It is. FIG. 12 is a top view of the cleaning cabinet 2.
[0075]
At the upper edge end of the cleaning cabinet 2, a groove comprising an inner wall 2c and a higher outer wall 2d is provided. A gasket 31 as a water seal member is fitted in the groove. The gasket 31 has a two-step upper and lower hollow structure, and the upper hollow portion 31a communicates with the outside through a small hole provided at an appropriate location in the circumferential direction, and is shown by a dotted line in FIG. As shown, it has a shape protruding outward. On the other hand, as shown in FIG. 12, the lower hollow portion 31b has cuts on both sides across the corners of the four corners, and a reinforcing metal fitting 32 having a substantially L-shaped cross section can be inserted into the inside from the cuts. It has become. The reinforcing metal fittings 32 are attached in the circumferential direction with almost no gap, and a short linear member 32b corresponding to the front and rear sides of the cleaning cabinet 2, and a long linear member 32c corresponding to the left and right sides, And a corner-shaped member 32a covering the four corner portions. Screw holes are perforated at appropriate portions of the bottom of each groove and each reinforcing metal fitting 32. When the gasket 31 having the reinforcing metal fitting 32 inserted into the lower hollow portion 31b is inserted into the groove, a screw is formed from below the bottom of the groove. The screw that penetrates the hole is screwed into the screw hole of the reinforcing bracket 32 and fixed.
[0076]
The reinforcing metal fitting 32 has a function of fixing the gasket 31 to the groove and a function of reinforcing the upper edge of the cleaning cabinet 2. That is, the upper edge of the cleaning cabinet 2 is easily deformed so as to be curved inward near the center of the left and right side walls and near the center of the front and rear walls. However, such a deformation can be prevented by passing the metal-made high-rigidity reinforcing metal fitting 32.
[0077]
As described above, the gasket 31 has a shape in which the upper hollow portion 31a projects outward in a state where the gasket 31 is not inserted into the groove. Therefore, when the gasket 31 is inserted into the groove, the overhanging portion is pushed in a contracting direction, and is in close contact with the inner peripheral surface of the outer wall portion 2d of the groove. At this time, the upper end of the gasket 31 is lower than the upper end of the outer wall 2d. Further, the gasket 31 has a step portion 31c on the inner peripheral side. When the gasket 31 is attached to the groove, the step portion 31c rests on the upper edge of the standing wall portion 2c. When the upper lid 5 is lowered, the projecting portion 5b on the outermost periphery of the upper lid 5 crushes the upper hollow portion 31a of the gasket 31 and adheres without gaps due to the repulsive force, thereby exhibiting high water sealing.
[0078]
As described above, the upper end of the gasket 31 is lower than the upper end of the outer wall 2d, the upper surface of the gasket 31 is inclined downward from the outside toward the inside, and the inner peripheral surface of the gasket 31 is the upper edge of the inner wall 2c. It is on the edge. Therefore, even if water falls on the gasket 31, the water flows along the gasket 31 to the inside of the cleaning cabinet 2 and does not spill out to the outside.
[0079]
Furthermore, the upper lid 5 is provided with a flange 30 which is a synthetic resin molded product having a substantially J-shaped cross section on the inner peripheral side of the protruding piece 5b. However, the flange 30 is not provided over the entire circumference of the upper lid 5 but is provided only on the rear side of the position B shown in FIG. 2, and the flange 30 is interrupted at the position B. Yes. The position B is a position where the position directly below the cleaning chamber 2 even when the cleaning chamber 2 is pulled out to the maximum. Such a structure has the following effects.
[0080]
That is, when the upper lid 5 is closed and the washing operation is started, the water sprayed from the nozzle arm 16 reaches the lower surface of the upper lid 5. The suspended water flows along the lower surface of the upper lid 5 and flows into the flange 30. And it flows along the collar part 30, and flows down in the washing | cleaning store | warehouse | chamber 2 from the said cut | interruption. Even if the operation is temporarily stopped during the washing operation and the washing cabinet 2 is pulled out from the housing 1, the water just below the cut 30 is always in the washing cabinet 2 because the portion immediately below the cut is in the washing cabinet 2. It is possible to prevent the inside of the housing 1 from getting wet or leaking to the outside.
[0081]
Next, the structure of the housing | casing 1 which is the other characteristic of this dishwasher is demonstrated in detail with reference to FIGS. 13 is a front view showing a state in which the dishwasher is attached to the system kitchen, FIG. 14 is a side view of the same, FIG. 15 is an external perspective view of a table on which the dishwasher is placed, and FIG. It is C 'cut line sectional drawing.
[0082]
Since this dishwasher is a built-in type, it needs to be stored in a predetermined dimension (for example, a width of 450 mm). Currently, a table 81 as shown in FIG. 14 is generally used. That is, both side walls 82 of a box used as a drawer or the like have a structure that protrudes upward from the mounting plate 83 (protruding portion 82a). As shown in FIG. 13, the mounting table 81 is housed between both side plates 80 of the system kitchen, and the protruding portion 82a and the side plate 80 are fixed with fixing brackets such as bolts in order to prevent displacement.
[0083]
The dishwasher is placed on the placement plate 83 of the table 81. In the present dishwasher, the width of the casing 1 is slightly smaller than the inner width of the side plates 80 of the kitchen. The corner portions 1c on both sides of the bottom portion 1b are formed in a curved shape, thereby avoiding interference with the protruding portion 82a. In the conventional built-in type pull-out dishwasher compatible with a system kitchen with a width of 450 mm, the width of the housing was adjusted to the inner dimensions of the side walls 82 of the table 81, but it was only about 410 mm. The lateral width of the housing can be increased to a level slightly smaller than 450 mm. Accordingly, the maximum width of the washing cabinet 2 can be increased.
[0084]
In addition, since the washing | cleaning storage cover which equipped the washing | cleaning and drainage pump etc. was attached to the bottom part of the washing | cleaning storage 2 and this can make a width | variety smaller than the washing | cleaning storage 2, the corner of the housing | casing 1 is mentioned above. There is no problem even if the portion 1c is formed in a curved shape.
[0085]
As described above, when the dishwasher is incorporated in the system kitchen, the gap between the side wall 1a of the housing 1 of the dishwasher and the side plate 80 of the kitchen is very small. However, if the dishwasher vibrates, it may come into contact with the side plate 80 to generate noise, so the following structure is adopted. That is, as shown in FIG. 16, the front edge portion of the side wall 1a of the casing 1 is bent inward substantially perpendicularly, and a stopper 33 is provided in the gap between the bent portion and the front panel 7. A soundproof gasket 34 made of an elastic member such as rubber is attached to 33. The soundproof gasket 34 closes the gap between the front panel 7 and the metal backing 33, and a projecting piece 34 a protruding sideways is in contact with the side plate 80 of the kitchen. Accordingly, it is possible to prevent the dishwasher from shifting laterally, and even if the dishwasher vibrates, the vibration is not easily transmitted to the side plate 80 of the kitchen, and noise can be reduced. Further, since the gap between the front panel 7 and the housing 1 is closed by the soundproof gasket 34, it is effective for preventing invasion of unpleasant pests and the like, and various operation sounds generated in the housing 1 during the washing operation. Is less likely to leak to the outside and is useful for noise reduction. In addition, it is preferable that an elastic member having a protruding piece that contacts the side plate 80 is also provided on the rear side of the housing 1.
[0086]
By the way, in FIG.5 and FIG.13, although both the side walls 1a and the bottom part 1b of the housing | casing 1 are described as what shape | molded one board | plate material so that the corner part 1c might curve, in this dishwasher, this is It is not originally a single plate member. That is, as shown in FIG. 17, two substantially symmetrical plate members 100a and 100b divided by a vertical vertical plane are butted at the center of the bottom and joined by welding or the like. The reason why the center of the bottom portion 1b is used as the joining portion is to avoid the corner portion 1c where the joining portion is curved in order to ensure strength (rigidity).
[0087]
When the side walls 1a and the bottom 1b of the housing 1 are formed by a single plate member, a considerably large metal plate having a size of about 1600 × 600 mm is required. Such a plate member is cut out from a roll-shaped steel plate. However, the larger the size, the lower the yield rate, and the higher the proportion of steel plates discarded. Further, if there is a flaw in the cut plate member even at one place, it is discarded, but the probability that there is a flaw increases as the size increases, and the amount of discard also increases in this respect. On the other hand, in this dishwasher, since both the side walls 1a and the bottom 1b of the casing 1 are formed from the two plate members 100a and 100b, the size of one plate member is about 1/2, and it can be taken. The rate of steel sheets that are discarded with an increased rate is greatly reduced. In addition, the probability of having a flaw decreases, and even if there is a flaw, the amount discarded is halved. Thus, this dishwasher is excellent in terms of effective use of resources because the use efficiency of materials can be increased.
[0088]
Next, the structure of the tableware bowl 4, which is another feature of the dishwasher, will be described in detail with reference to FIGS. 18 is a top view of the tableware bowl 4 of the dishwasher, FIG. 19 is a top view showing a state in which the post-housing storage bowl 45 is lifted, and FIG. 20 is a front view.
[0089]
In the tableware bowl 4, an upper shelf 41 is provided for placing cups so as to be rotatable about a shaft 40 extending in the front-rear direction, and a shaft 42 is provided at the foremost portion of the upper shelf 41. A detergent container 43 is rotatably provided at the center. The detergent container 43 has a dish shape with the entire upper surface opened, and an outflow hole 43a through which the detergent flows is opened at the bottom of the bottom surface inclined in one direction. On the other hand, the front porridge housing rod 45 of the lower rod is rotatable about a shaft 44 extending in the front-rear direction, similar to the shafts 40 and 42.
[0090]
As shown in FIG. 12, a filter 15 is arranged on the front right side of the bottom of the cleaning cabinet 2, and in order to discard the residue collected in the filter 15, the knob 15 a of the filter 15 is picked and taken out from the cleaning cabinet 2. There is a need. The tableware bowl 4 is provided immediately above the filter 15, and the filter 15 cannot be taken out as it is. However, when the bowl containing bowl 45 is rotated as shown in FIG. The upper part of the knob 15a of the filter 15 is greatly opened. Therefore, in this state (or in a state where the upper shelf 41 is also rotated), the user can easily lift the knob 15a of the filter 15 from above by picking it with a finger and shifting it sideways.
[0091]
In this dishwasher, in particular, since the shaft 44 of the rotary type food container 45 is extended in the front-rear direction, the food container 45 is not easily rotated by the force applied when the washing cabinet 2 is pulled out. Therefore, rattling of tableware can be prevented. In addition, since all the shafts 40, 42, and 44 extend in the same direction, when the user performs an operation, the understanding is easy and the operability is high.
[0092]
Next, a dishwasher which is another embodiment of the present invention (hereinafter referred to as “second embodiment”) will be described with reference to the drawings. The dishwasher according to the second embodiment is different from the dishwasher according to the first embodiment in the configuration of the upper lid opening / closing drive mechanism. FIG. 21 is a side configuration diagram of the main part of the upper lid opening / closing drive mechanism of the dishwasher according to the second embodiment, and FIG. 22 is a front view. In addition, the same code | symbol is attached | subjected to the component which is the same as that of the said 1st Example, or is equivalent, and description is abbreviate | omitted.
[0093]
In the dishwasher of the second embodiment, instead of moving the upper link 5 up and down by operating the parallel link mechanism by pulling / relaxing the wire in conjunction with manual operation of the operation lever, the left and right parallel link mechanisms are combined, The upper lid 5 is opened and closed by pulling or relaxing the portion with the driving force of the torque motor.
[0094]
In this dishwasher, the left and right actuating plates 20 rotatably attached to the links 6 and 6 ′ including the connecting portions constituting the parallel link mechanism by screws 6 c are disposed below the bottom wall of the washing cabinet 2. The torque motor 54 pulls the wire rope 51 connected to the approximate center of the bottom of the connecting plate member 50 via the two pulleys 52 and 53. That is, here, the operation plate 20 and the connecting plate member 50 function as the coupling means, and the wire rope 51, the pulleys 52 and 53, and the torque motor 54 function as the driving means.
[0095]
When the torque motor 54 is turned on and the wire rope 51 is pulled, the working plates 20 on both sides move substantially horizontally rearward against the biasing force of the coil spring 21 via the connecting plate member 50. As a result, in the same manner as when the operation lever 11 is rotated in the latch direction in the first embodiment, the upper lid 5 is lowered substantially vertically by the action of the parallel link mechanism, and the upper lid 5 is moved to the upper surface opening 3 of the cleaning cabinet 2. Stop at the position where the valve is closed.
[0096]
When the cleaning cabinet 2 is pulled out, the torque motor 54 is turned off prior to that. Then, the wire rope 51 relaxes and the traction of the connecting plate member 50 is released, so that the connecting plate member 50 moves to the front side by the biasing force of the coil spring 21, and the upper lid 5 is almost moved by the parallel link mechanism. Ascend vertically and move away from the washing chamber 2.
[0097]
In this configuration, the upper lid 5 closes the upper surface opening 3 of the cleaning cabinet 2 only when the torque motor 54 is on. Therefore, it is desirable to shorten the operating time of the torque motor 54 as much as possible in order to save power and extend the life of the torque motor 54. Therefore, for example, the torque motor 54 may be turned on when the cleaning operation start switch is operated, and may be turned off immediately after an appropriate time margin is obtained after the operation is completed. That is, as a procedure for the operation, after the user stores the tableware in the tableware bowl 4 in the washing cabinet 2, the user completely pushes the washing cabinet 2 into the housing 1 and rotates the operation lever 11 to the latch position. In this state, the drawer of the cleaning cabinet 2 is blocked by the latch bar 12, but the upper lid 5 still remains at a position away from the cleaning cabinet 2. Then, after the user performs a predetermined operation on the operation panel 9 to operate the operation start switch, the torque motor 54 is turned on and the upper lid 5 is closed as described above. Thereafter, water is introduced into the washing cabinet 2 and the washing operation is started.
[0098]
Furthermore, the dishwasher of the second embodiment can be modified as follows. FIG. 23 is a side view of the main part of the upper lid opening / closing drive mechanism of the dishwasher according to the third embodiment, and FIG. 24 is a top view of the main part around the operation lever 11. In addition, the same code | symbol is attached | subjected to the component which is the same as that of the said 1st, 2nd Example, or an equivalent, and description is abbreviate | omitted.
[0099]
In the dishwasher of the third embodiment, the opening / closing drive mechanism of the upper lid 5 is the same as that of the second embodiment. In the third embodiment, the end portion of the wire rope of the wire 23 is fixed to the front end portion of the working plate 20 via the coil spring 22 and the pulley 55. The wire 23 is fed forward through the wire guide groove 24 as in the first embodiment, but the structure around the operation lever 11 is different from that in the first embodiment. That is, as shown in FIG. 24, the operation lever 11 is rotatable about the shaft 25a, but the latch position and the release position are completely opposite to those of the first embodiment. The coil spring 27 urges the rotating member 25 so that the operation lever 11 comes to the release position.
[0100]
When the torque motor 54 is turned off and the upper lid 5 is at a position away from the cleaning cabinet 2, the wire rope of the wire 23 is relaxed and does not exert a force on the rotating member 25. The operation lever 11 is in the release position. As described above, when the torque motor 54 is turned on, the operation plate 20 moves backward. Then, the wire rope of the wire 23 is pulled, the rotating member 25 rotates against the urging force of the coil spring 27, and the operation lever 11 reaches the latch position. As a result, the latch bar 12 prevents the cleaning cabinet 2 from being pulled out. That is, according to this configuration, the upper lid 5 can be opened and closed according to the on / off of the torque motor 54, and the operation lever 11 can also be rotated to latch or release the cleaning cabinet 2. Therefore, it is possible to reliably prevent the washing cabinet 2 from being pulled out during the washing operation without depending on the operation of the operation lever 11 by the user.
[0101]
Further, in the dishwasher of the first embodiment, the corner portion 1c of the housing 1 is formed in a curved shape in order to avoid the protruding portion 82a of the side wall 82 of the pedestal 81, but the bottom cover of the inner washing cabinet 2, etc. Various shapes can be used as long as they do not come into contact with each other. FIG. 25 shows an example in which the corner portion 1c is chamfered so as to be cut off obliquely. FIG. 26 shows an example in which the protrusion 82a is bent inward so as to avoid the protrusion 82a. It is clear that the same effect as that of the first embodiment can be obtained by such a configuration.
[0102]
In the dishwasher of the first embodiment, the reinforcing metal fitting 32 inserted into the lower hollow portion 31b of the gasket 31 has an L-shaped cross section. However, as shown in FIG. Good.
[0103]
Moreover, since each said Example is only an example, it is clear that you may change and correct suitably in the range of the meaning of this invention besides the above-mentioned thing.
[Brief description of the drawings]
FIG. 1 is a schematic longitudinal sectional view of a dishwasher according to one embodiment (first embodiment) of the present invention in a state where a washing cabinet is completely stored in a housing.
FIG. 2 is a schematic longitudinal sectional view of the dishwasher according to the first embodiment in a state where the washing cabinet is being pulled out from the housing.
FIG. 3 is a side configuration diagram of a main part centering on an opening / closing drive mechanism of an upper lid in a state in which a washing cabinet is completely housed in a housing in the dishwasher according to the first embodiment.
FIG. 4 is a side configuration diagram of a main part centering on an opening / closing drive mechanism of an upper lid in a state in which the washing cabinet is being pulled out from the housing in the dishwasher according to the first embodiment.
FIG. 5 is a front view of a main part centering on an opening / closing drive mechanism of an upper lid in the dishwasher according to the first embodiment;
FIG. 6 is a top view of a main part around an operation lever constituting an upper lid opening / closing drive mechanism in the dishwasher according to the first embodiment;
FIG. 7 is a front view of a main part around an operation lever constituting an opening / closing drive mechanism of the upper lid in the dishwasher according to the first embodiment.
FIG. 8 is an enlarged view of the vicinity of part A in FIG. 3;
FIG. 9 is a cross-sectional view taken along the line D-D ′ in FIG. 8;
FIG. 10 is a longitudinal sectional view showing a detailed configuration of a contact portion between the upper edge of the washing cabinet and the upper lid in a state in which the upper lid is raised in the dishwasher according to the first embodiment.
FIG. 11 is a longitudinal sectional view showing a detailed configuration of a contact portion between the upper edge portion of the washing cabinet and the upper lid when the upper lid is lowered in the dishwasher according to the first embodiment.
FIG. 12 is a top view of a washing cabinet in the dishwasher according to the first embodiment.
FIG. 13 is a front view showing a state in which the dishwasher according to the first embodiment is attached to the system kitchen.
FIG. 14 is a side view showing a state in which the dishwasher according to the first embodiment is attached to the system kitchen.
FIG. 15 is an external perspective view of a table on which a dishwasher is placed.
16 is a sectional view taken along line C-C ′ in FIG. 11;
FIG. 17 is a cross-sectional view showing the assembly structure of the housing.
FIG. 18 is a top view of a tableware bowl in the dishwasher according to the first embodiment.
FIG. 19 is a top view of a tableware bowl in a state where the bowl containing the bowl is lifted in the dishwasher according to the first embodiment.
FIG. 20 is a front view of a tableware bowl in the dishwasher according to the first embodiment.
FIG. 21 is a side view of a main part centering on an opening / closing drive mechanism of an upper lid in a dishwasher according to another embodiment (second embodiment) of the present invention in a state where the washing cabinet is completely housed in the housing. .
FIG. 22 is a front view of the main part centering on the opening / closing drive mechanism of the upper lid in the dishwasher according to the second embodiment;
FIG. 23 is a side view of the main part of the upper lid opening / closing drive mechanism of the dishwasher according to another embodiment (third embodiment) of the present invention.
FIG. 24 is a top view of the main part around the operation lever in the dishwasher according to the third embodiment.
FIG. 25 is a front view showing another modification of the shape of the housing.
FIG. 26 is a front view showing another modification of the shape of the housing.
FIG. 27 is a view showing another example of the reinforcing metal fitting inserted into the gasket provided around the upper edge of the cleaning cabinet.
[Explanation of symbols]
1 ... Case
1a ... sidewall
1b ... Bottom
1c ... Corner
2 ... Cleaning cabinet
2a ... Front wall
2c ... Internal wall
2d: outside wall
3. Top opening
4 ... Tableware bowl
40, 42, 44 ... axis
41 ... Upper shelf
43 ... Detergent container
45 ..
5 ... Upper lid
5a ... Cylindrical shaft
5b ... Projection piece
6, 6 '... link
6a ... Oval hole
6b, 6c ... Screw (shaft)
7 ... Front panel
7a ... Slope part
8 ... Guide rail
9 ... Control panel
10 ... handle part
11 ... Control lever
12 ... Latch bar
14 ... Water tank
15 ... Filter
15a ... Picking part
20 ... Operating plate
21, 22, 27 ... coil spring
23 ... Wire
24 ... Wire guide groove
25 ... Rotating member
25a ... axis
26: Mounting member
28, 28 '... position regulating plate
30 ... Buttocks
31 ... Gasket
31a ... Upper hollow portion
31b ... Lower hollow part
31c ... Step part
32 ... Reinforcing metal fittings
32a ... Corner-shaped member
32b, 32c ... linear member
33 ... the deposit
34 ... Soundproof gasket
34a ... Projection
50. Connecting plate member
51 ... Wire rope
52, 53, 55 ... pulley
54 ... Torque motor
80 ... side plate of system kitchen
81 ... Stand
82 ... sidewall
82a ... protrusion
83. Mounting plate

Claims (1)

In the dishwasher provided with a washing cabinet with an opening for storing and taking out dishes on the upper surface, so that it can be pulled out forward from the housing with the front open,
a) an upper lid for closing the upper opening of the cleaning cabinet;
b) a pair of left and right upper lid holding means provided between the side wall of the housing and the upper lid to hold the upper lid so as to be movable up and down inside the housing;
c) on the front plate attached to the front surface of the washing cabinet, and operating means that moves between two positions in response to a manual operation by the user;
d) each of which is disposed in a gap between the left and right side walls of the cleaning cabinet and the left and right side walls of the casing facing the cleaning cabinet, and includes wire ropes that are pulled according to the operation by the operation means, A pair of left and right operating force transmission means for transmitting a force by manual operation to the upper lid holding means to move the upper lid up and down ;
The operation means also serves as an operation of a latch means for preventing the cleaning chamber from being pulled out from a state accommodated in the housing or releasing the prevention.
By manual operation to one position of the operation means in a state where the washing cabinet is housed in a housing, the wire rope is pulled, the upper lid is moved down and the upper surface opening of the washing cabinet is closed, and The latch means prevents the washing chamber housed in the housing from being pulled out,
By manual operation of the operation means to the other position, the wire rope is released by pulling, the upper lid is moved upward, the upper surface opening of the washing cabinet is opened, and the blocking prevention of the washing cabinet by the latch means is released. ,
A dishwasher characterized by that.

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