JPH11276404A - Dishwasher - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent large-sizing of an outer form of a dishwasher by eliminating protrusion of flanges for welding sideways of a washing chamber in case of a weld structure of the washing chamber in the dishwasher. SOLUTION: In a dishwasher, a washing chamber 20 is composed by seam- welding flanges of a top surface plate, side surface plates, and a bottom plate. The flange is provided with vertical parts 41h, 42h parallel to side surfaces of the washing chamber 20, so protrusion sideways are eliminated. An installation member 42i is disposed on the vertical part 42h. A support member 73 of an opening mechanism 70 to open an opening door 21 is fixed by screws with a bottom part structural member 26 to support the washing chamber 20 along a side surface of the washing chamber 20. On a bottom part of the bottom plate, a dent part 41a protruded toward the inside of the washing chamber 20 is formed as an escape space for a roller electrode for seam welding at the time of manufacture. Support rigidity and water tightness of the opening door are thus improved.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dishwasher for washing and rinsing dishes. In particular, the present invention relates to a box-shaped washing chamber for washing dishes having a welded structure.

[0002]

2. Description of the Related Art In a dishwasher, dishes are stored in a basket in a basket, and washing water is sprayed on the dishes to wash the dishes. As a structure of the cleaning room, there is a welding structure in which a plurality of sheet metal materials are welded. For example, a band-shaped flange is provided at an edge of each part of a bottom plate that partitions the bottom surface of the cleaning chamber, a side plate that is disposed above the bottom plate to partition the side surface of the cleaning chamber, and a top panel that partitions the top surface of the cleaning chamber. Are formed, and the flanges are overlapped and seam-welded to form a box. The above-mentioned flange extends in a direction perpendicular to the side surface of the cleaning chamber and is erected.

In such flange seam welding, a pair of roller electrodes roll while holding the pair of flanges while moving laterally of the cleaning chamber, and continuously perform resistance welding. Thereby, the washing chamber can be made to have a watertight structure. Incidentally, an opening / closing door is provided at the front opening of the cleaning room. The support member that supports the rotation axis of the door is
For example, it is provided on the side of the cleaning room.

[0004]

As described above, when the support member is provided on the side of the cleaning chamber, the support member may be arranged so as to overlap with the above-described welding flange in a side view. In such a case, the width of the dishwasher is increased because the support member is disposed further to the side than the front end of the flange. Then, an object of the present invention is to solve the above-mentioned technical problems and to provide a dishwasher which can be reduced in size with a washing room having a welding structure.

[0005]

In order to achieve this object, in a dishwasher according to the present invention, a washing chamber for washing dishes is formed in a box shape having a front opening.
A pair of flanges respectively formed on a bottom plate for partitioning the bottom surface and a side plate for partitioning the side surfaces are overlapped and welded, and outside the flanges, for opening and closing a door for covering a front opening of the cleaning chamber. In a dishwasher provided with an opening / closing mechanism, the pair of flanges is a vertical flange that projects in a vertical direction substantially parallel to the side surface of the washing room at the position where the opening / closing mechanism is arranged.

According to this configuration, when the opening / closing mechanism is disposed on the outer side surface of the cleaning chamber, the flange does not protrude laterally at the disposition position, so that the opening / closing mechanism can approach the side surface of the cleaning chamber. As a result, the width of the dishwasher can be reduced. Note that a part of the opening / closing mechanism may be provided on the side of the flange. A dishwasher according to a second aspect of the present invention is the dishwasher according to the first aspect, wherein the bottom plate has a recessed portion that is recessed from below toward the inside of the washing chamber near the vertical flange. .

According to this configuration, in addition to the operation of the first aspect of the present invention, a roller electrode for seam welding a pair of vertical flanges when forming the cleaning chamber is provided inside the recess. This allows the flange to be easily seam-welded without the roller electrode and the bottom plate coming into contact with each other. A dishwasher according to a third aspect of the present invention is the dishwasher according to the first or second aspect, wherein the pair of flanges is a horizontal flange that stands on the side of the washing room at the rear and protrudes in the horizontal direction. It is characterized by being twisted forward and connected to a vertical flange.

According to this configuration, in addition to the function of the first or second aspect of the invention, the following function is provided. That is, at the time of welding the horizontal flange at the rear of the cleaning chamber when manufacturing the cleaning chamber, the roller electrode can move to the side of the cleaning chamber and does not hit the bottom plate, so that the roller electrode does not hit the bottom plate. Thus, it is not necessary to make the bottom plate depressed, and it is possible to suppress a decrease in the inner volume of the cleaning chamber. Further, the continuous flange is easy to weld and has high watertightness.

According to a fourth aspect of the present invention, in the dishwasher according to any one of the first to third aspects, the bottom plate has a bottom portion defining a bottom surface of the washing room, and a front portion rising from a front edge of the bottom portion. Wherein the vertical flange includes a front flange extending forward from a front side edge of the bottom plate. According to this configuration, in addition to the operation of the invention according to any one of claims 1 to 3, the front flange extends forward, so that it is less likely to hinder the opening / closing mechanism.
The width of the cleaning chamber can be reliably reduced.

According to a fifth aspect of the present invention, in the dishwasher according to any one of the first to fourth aspects, the opening and closing mechanism includes a support member that rotatably supports the opening and closing door,
The support member is fixed to the vertical flange along the outer surface of the cleaning chamber. According to this configuration, in addition to the function of the invention described in any one of claims 1 to 4, the following function is provided. That is, since the support member is fixed to the cleaning chamber via the vertical flange and along the side surface of the cleaning chamber, the opening / closing door can be supported with high rigidity to the cleaning chamber via the support member. As a result, when the door is closed, the watertightness between the door and the cleaning chamber can be increased.

According to a sixth aspect of the present invention, in the dishwasher according to the fifth aspect, a bottom structural member for supporting the washing room below the washing room is further provided, and the bottom structural member and a vertical flange are provided. And the support member are fixed to each other. According to this configuration, in addition to the function of the invention described in claim 5, the opening / closing door can be supported with higher rigidity by the support member and the bottom structural member.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of the present invention will be described.
This will be described in detail with reference to the accompanying drawings. FIG. 1 is a side sectional view of a schematic configuration of a dishwasher according to an embodiment of the present invention. The dishwasher 1 includes a washing room 2 for washing dishes.
It has 0. In the washing room 20, a tableware basket 4 for holding tableware is arranged, and an arm-shaped nozzle 5 is provided below the tableware basket 4. Multiple injection ports 5a of nozzle 5
The washing water is sprayed from and sprayed on the tableware to wash the tableware.

The dishwasher 1 has a pipe 6 and a solenoid valve 7 behind the washing room 20, and can supply washing water into the washing room 20 from a water supply facility (not shown) such as a tap. The bottom of the cleaning chamber 20 is formed in a container shape, in which cleaning water can be stored. The bottom of the cleaning chamber 20 is
0 is connected to the cleaning pump 51. When the cleaning pump 51 is operated, the cleaning water is pressure-fed by the cleaning pump 51, sent to the nozzle 5 through the pipe 53, and jetted. The nozzle 5 is rotatably supported around the vertical axis in the washing chamber 20 and sprays washing water onto the dishes in the dish basket 4 while rotating by the reaction force of the washing water, so that the dishes are evenly distributed. Can be washed. In addition, a heater 10 is provided at the bottom of the cleaning chamber 20 to raise the temperature of the water in the cleaning chamber 20 so that cleaning can be easily performed with the warm water. Further, the heater 10 can heat the surrounding air and dry the dishes with warm air. Further, the washing water after washing is supplied from the bottom of the washing chamber 20 to the pipe 56, the drain pump 52,
The water is drained out of the machine through the drain hose 54.

The cleaning chamber 20 has a welding structure, and is formed in a box shape by welding and joining a plurality of metal plates. An opening is formed in the front surface. This front opening has a door 2
1 is supported and attached by the opening / closing mechanism 70. The opening / closing mechanism 70 is provided as a pair on the left and right.
The opening and closing mechanism 70 and the cleaning chamber 20 are formed of a resin bottom structural material 26 as a structural material for supporting the cleaning chamber 20 from below.
Around the washing room 20, a frame 25 made of a metal plate, which determines the outer shape of the dishwasher 1, is attached.

In the present embodiment, the front portion of the flange serving as the welding joint of the washing chamber 20 is provided in parallel with the side surface of the washing chamber 20, so that the width of the dishwasher 1 is reduced. Less than,
This will be described in detail. FIG. 2 is a perspective view of the cleaning chamber of FIG. Please refer to FIG. 1 and FIG. The cleaning chamber 20 includes a bottom plate 41 that defines a bottom surface thereof, and a side plate 4 that stands upright above the bottom plate 41 and integrally partitions the left, right, and rear surfaces of the cleaning chamber 20.
2 and a top plate 43 connected above the side plate 42 to partition the upper surface of the cleaning chamber 20. Also, the bottom plate 41
A water reservoir 44 is attached to the bottom of the water reservoir 44 to define a lower recess. Band-shaped flanges are formed at the edges of the bottom plate 41, the side plates 42, and the top plate 43, respectively. The surfaces of the flanges of the respective portions are overlapped with each other, and seam welding is continuously performed along the longitudinal direction of the flange at a substantially central portion in the width direction. The seam-welded portion is shown in FIG. 2 by a dashed line. In this manner, the bottom plate 41, the side plate 42, and the top plate 43
Are joined to each other in a watertight state.

The top plate 43 is formed with a band-like flange 43a along the left and right side edges and the rear edge. The flange 43a is formed in parallel with the upper surface of the cleaning chamber 20. The flange 4 of the top plate 43 is provided on the upper edge of the side plate 42.
A strip-like flange 42a having a plane parallel to the plane of 3a is formed. The upper surface of the flange 42a and the top plate 43
And the lower surface of the flange 43a are overlapped and seam-welded.

A band-like flange 42b is formed at the lower edge of the side plate 42. This flange 42b
The rear flange 42c at the rear end and the rear flange 4
It has a pair of bottom flanges 42d connected to the left and right ends of the side plate 2c at the left and right lower ends of the side plate 42, and a front flange 42e connected to the front ends of the bottom flanges 42d. These parts are formed continuously and integrally.

The rear flange 42c is provided upright on the rear surface 20a of the cleaning chamber 20, and the side plate 4 defining the rear surface 20a is provided.
Along the lower edge of the cleaning chamber 20, the width direction of the
A horizontal flange extends rearward, which is a direction orthogonal to 0a. The bottom flange 42d is provided along the lower edge of the side plate 42 that defines the left and right side surfaces 20b of the cleaning chamber 20 and has a surface near the rear connected to the rear flange 42c and parallel to the rear flange 42c. A horizontal portion 42f serving as a horizontal flange and a horizontal portion 4
Twisted portion 4 connected to the front of 2f and twisted
2g and a vertical portion 42h connected to the front of the torsion portion 42g and having a surface extending in the vertical direction. The surface of the vertical portion 42h is formed in parallel with the side surface 20b of the cleaning chamber 20 and serves as a vertical flange. The horizontal portion 42f, the twisted portion 42g, and the vertical portion 42h are formed continuously and integrally, and the upper surface of the horizontal portion 42f is twisted by the twisted portion 42g to form an outer surface of the vertical portion 42h (for example, a flange on the left side). If there is, it is connected to the left side).

The front flange 42e is connected to the bottom flange 42e.
It is formed continuously with the front end of the vertical portion 42h of d.
The front flange 42e is provided on the front end edge of the side plate 42 in an arc shape below a predetermined height. The front flange 42e has a surface parallel to the vertical portion 42h of the bottom flange 42d and is a vertical flange. A flange 41b is formed on the rear edge and the left and right edges of the bottom plate 41. The flange 41b is formed by a surface parallel to the surface of the flange 42b at the lower edge of the side plate 42. Bottom plate 4
The upper surface of the first flange 41b and the lower surface of the flange 42b at the lower edge of the side plate 42 are overlapped and seam-welded.

The flange 41b of the bottom plate 41 has a rear flange 41c which is a horizontal flange, a pair of bottom flanges 41d including a horizontal portion 41f which is a horizontal flange, a twisted portion 41g, and a vertical portion 41h which is a vertical flange.
And a pair of front flanges 41e which are vertical flanges, and each part of these flanges 41b is
Each of the flanges 42b at the lower edge of the side plate 42 is formed in the same manner as each of the portions having the same name, and is continuous.

The bottom plate 41 has a bottom portion 41m that defines the bottom surface of the cleaning chamber 20, and a front portion 41n that rises while curving upward from the front edge of the bottom portion 41m. Bottom plate 41
Along the left and right side edges of the front part 41n.
Are formed to extend forward. A rear flange 41c and a pair of bottom flanges 41d are formed along the edge of the bottom 41m of the bottom plate 41.

When the cleaning chamber 20 having such a configuration is manufactured, the vertical portion 41h of the bottom flange 41d and the front flange 41e extend in the direction along the side surface of the cleaning chamber 20, so that this flange portion is formed. When seam welding is performed, it is assumed that the roller electrode for seam welding and the bottom plate 41 collide. For this reason, in the present embodiment, the bottom plate 41 has a recess 41 a as an escape space for the roller electrode.
Is provided.

The recess 41a is provided on the bottom of the bottom plate 41 as a pair on the left and right. The recess 41a is provided in the cleaning chamber 20.
Is formed so as to project from the outside to the inside. The concave portion 41a is provided on the side of the vertical portion 41h and the twisted portion 41g of the bottom flange 41d, and is provided so as to be opened from directly below the cleaning chamber 20. The recess 41a is open forward. Bottom plate 41 and side plate 4
2 when welding the front flanges 41e, 42
e, flange vertical portions 41h and 42h and twist portion 4
When 1 g and 42 g are seam-welded, a pair of roller electrodes are arranged in a horizontal direction with a flange interposed therebetween. At this time, one of the roller electrodes located immediately below the cleaning chamber 20 is
Pass through 1a.

An attachment member 42i for fixing the support member 73 of the opening / closing mechanism 70 is formed integrally with the flange. FIG. 3 is an enlarged side view of a main part of the dishwasher of FIG. 1, and shows the periphery of an opening / closing mechanism of the dishwasher. FIG.
FIG. 4 is an exploded perspective view of a main part of the dishwasher in FIG. 3. The mounting member 42i is provided at the end of the vertical portion 42h of the bottom flange 42d of the flange 42b at the lower edge of the side plate 42. The mounting members 42i are arranged in a pair on the left and right near the front of the cleaning chamber 20. The attachment member 42i is provided at the end of the band of the flange so as to avoid a portion to be seam-welded, and when there is an insertion hole 42j or the like, watertightness by welding can be maintained.

The mounting member 42i includes an insertion hole 42j for a screw 76 and an engagement pin 26k provided on the bottom structural member 26.
And an engagement hole 42k. A mounting member 42i,
The support member 73 and the bottom structural member 26 are screwed and fixed by screws 76 passing through the insertion holes 42j in a state where the surfaces are in contact with each other. Further, the engaging pin 26k and the engaging hole 42k of the bottom structural member 26 are fitted to each other, and
0 is positioned in the front-rear direction with respect to the bottom structural member 26.

The bottom structural member 26 is formed of a resin material, and is a plate-shaped main portion 26a provided below the cleaning chamber 20.
And support columns 26b erected at four corners of the main body 26a. The cleaning chamber 20 is placed on the support pillar 26b. Further, on the side surfaces of the two support pillars 26b closer to the front, the above-described engagement pin 26k and a plurality of, for example, three female screw holes 26j are provided. A screw 76 is screwed into the female screw hole 26j, and the support member 73 of the opening / closing mechanism 70 is fixed to the support column 26b in a closely contacting state.

The opening / closing mechanism 70 is attached to the opening / closing door 21 by the mounting bracket 7.
A rotation center shaft 72 extending in the left-right direction attached via the first and 74, a helix spring 75 wound around the rotation center shaft 72 and biasing the opening and closing door 21 to close, and a rotation center. A support member 73 that rotatably supports the shaft 72 while engaging with the shaft 72 is provided. The support member 73 includes a plate-shaped main portion 73a, and a rotation center shaft 7 at the front end of the main portion 73a.
A shaft holding portion 73b for rotatably holding the shaft 2 and a hook engaging portion 73c to which one end of the helical spring 75 is hooked.
A locking portion 73d which comes into contact with an end portion 74a of a mounting bracket 74 formed in a bent shape at the top of the main body portion 73a; and a plurality of screws 7 for fixing to the bottom structural member 26.
3e. When the main body portion 73a is fixed to the bottom structural member 26, the support member 73 follows the side surface 20b of the cleaning chamber 20 and the vertical portion 42h of the flange. Also,
When the opening and closing door 21 is opened and closed in this state, the end 74 a of the mounting bracket 74 is displaced along the surface of the support member 73, and comes into contact with the locking portion 73 d in the opened state of the opening and closing door 21 to stabilize the opened state. Can be maintained.

As described above, according to this embodiment, the vertical portions 41h and 42h of the pair of flanges for joining the bottom plate 41 and the side plate 42 of the cleaning chamber 20 constitute the vertical flange.
Is inside the arrangement position of the support member 73 of the opening / closing mechanism 70,
Since it extends parallel to the side surface of the cleaning chamber 20, the vertical portion 41h,
42h can be kept out of the way and can be prevented from protruding from the side surface 20b of the cleaning chamber 20. As a result, the support member 73 on the side of the flange is moved to the side surface 2 of the cleaning chamber 20.
0b, and the width of the dishwasher 1 can be reduced.

The front flange 41e of the bottom plate 41 extending forward is formed as a vertical flange so as not to obstruct the support member 73, and is preferable for reducing the width of the dishwasher 1. Further, since the support member 73 supporting the opening / closing door 21 is fixed to the cleaning chamber 20 via the mounting member 42i of the flange and is along the side surface 20b of the cleaning chamber 20, the opening / closing door 21 is moved with respect to the cleaning chamber 20. And can be supported with high rigidity. As a result, when the door 21 is closed,
And the cleaning chamber 20 can have high watertightness.

The bottom structural material 2 supporting the cleaning chamber 20
6, the bottom flanges 41d and 42d of the cleaning chamber 20, and the support member 73 supporting the door 21 are connected to each other, so that the door 21 can be supported with higher rigidity. When manufacturing the cleaning chamber 20, the depression 41 of the bottom plate 41 is used.
When a roller electrode for seam welding passes through a, when the vertical portions 41h and 42h of the pair of flanges are seam-welded,
The flange can be easily seam-welded without the roller electrode and the bottom plate 41 colliding.

The pair of flanges are formed by vertical portions 41h and 42h.
From the rear side of the washing chamber 20 because it is twisted rearward from the
During welding of f and 42f, the roller electrode moves to the side of the cleaning chamber 20 and does not have to hit the bottom plate 41. Therefore,
The bottom plate 41 does not need to be depressed like the depression 41a so that the roller electrode does not collide with the bottom plate 41, and a decrease in the internal volume of the cleaning chamber 20 can be suppressed. Also, the bottom flanges 41d and 42d twisted in the middle are vertical portions 41h and 42h at the front of the cleaning chamber and horizontal portions 41f and 4 at the rear.
2f can be smoothly continued, so that it is easy to weld when manufacturing, and watertightness can be reliably ensured.

In the above-described embodiment, the opening / closing mechanism 7
0 supporting members 73 are vertical portions 41h and 42h of the flange.
, But is not limited to this. For example, when the engaging portion of the opening / closing mechanism 70 is displaced, the engaging portion may pass through the sides of the vertical portions 41h and 42h of the flange. Even in this case, the width of the dishwasher 1 can be reduced. Can be.

In the above embodiment, the cleaning chamber 20
Although the flanges are seam-welded in the manufacture of the steel, other welding methods may be used. In addition, various design changes can be made without changing the gist of the present invention.

[0034]

According to the first aspect of the present invention, the pair of flanges for joining the bottom plate and the side plate of the cleaning chamber extend in the direction along the side surface of the cleaning chamber at the position where the opening / closing mechanism is disposed. Therefore, the opening / closing mechanism can approach the side surface of the washing room without protruding to the side and without obstruction, so that the horizontal width of the dishwasher can be reduced.

According to the second aspect of the present invention, in addition to the effect of the first aspect of the present invention, a roller electrode for seam welding passes through the recessed portion of the bottom plate when the cleaning chamber is manufactured, so that the bottom plate and the bottom plate can be crushed. Without the need, the vertical flange can be easily seam-welded. According to the third aspect of the present invention, the following effects are obtained in addition to the effects of the first or second aspect of the invention. That is, since the pair of flanges are horizontal flanges erected on the side at the rear of the cleaning chamber, the recesses in the bottom plate for avoiding collision between the roller electrode for welding the flanges and the bottom plate at the time of manufacture are cleaned. It is not necessary to provide at the rear of the chamber, and as a result, it is possible to suppress a decrease in the internal volume of the cleaning chamber. In addition, the flange is twisted in front of the horizontal flange and connected to the vertical flange, and is easily welded, so that watertightness can be reliably ensured.

According to the fourth aspect of the present invention, in addition to the effects of the first to third aspects, the front flange of the bottom plate extends forward, so that it does not interfere with the opening / closing mechanism. The width of the washing chamber can be reliably reduced. According to the invention described in claim 5, in addition to the effect of the invention described in any one of claims 1 to 4, the support member supporting the opening / closing door is fixed to the flange along the side surface of the cleaning chamber. The opening / closing door is supported with high rigidity with respect to the cleaning chamber via the support member, so that the watertightness between the opening / closing door and the cleaning chamber can be increased.

According to the sixth aspect of the present invention, in addition to the effect of the fifth aspect, the bottom structural member for supporting the cleaning chamber, the flange, and the support member are connected to each other, so that the opening / closing door can be further improved. It can be supported with higher rigidity.

[Brief description of the drawings]

FIG. 1 is a side sectional view of a schematic configuration of a dishwasher according to an embodiment of the present invention.

FIG. 2 is a perspective view of a washing room of the dishwasher of FIG. 1;

FIG. 3 is an enlarged side view of a main part of the dishwasher of FIG. 1;

FIG. 4 is an exploded perspective view of a main part of the dishwasher of FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Dishwasher 20 Washing room 26 Bottom structural material 41 Bottom plate 41a Depression 41b, 42b Flange 41c, 42c Rear flange (horizontal flange) 41e, 42e Front flange (vertical flange) 41f, 42f Horizontal part (horizontal flange) 41h, 42h Vertical part (vertical flange) 41m Bottom part 41n Front part 42 Side plate 70 Opening / closing mechanism 73 Support member

Claims (6)

[Claims] A washing chamber for washing dishes is formed in a box shape having a front opening, and a pair of flanges respectively formed on a bottom plate for dividing the bottom surface and a side plate for dividing the side surface are formed. In a dishwasher provided with an opening / closing mechanism for opening and closing an opening / closing door that covers the front opening of the washing chamber outside the flange, the pair of flanges is provided at the position where the opening / closing mechanism is disposed. A dishwasher characterized by having a vertical flange projecting vertically in a direction substantially parallel to a side surface. 2. The dishwasher according to claim 1, wherein the bottom plate has a recess near the vertical flange and recessed from below toward the inside of the washing chamber. 3. The dishwasher according to claim 1, wherein the pair of flanges are horizontal flanges which are erected on the side of the washing room at the rear and protrude in the horizontal direction, and are twisted in front of the vertical. A dishwasher characterized by being connected to a flange. 4. The dishwasher according to claim 1, wherein the bottom plate includes a bottom portion defining a bottom surface of the washing chamber, and a front portion rising from a front edge of the bottom portion, and the vertical flange includes a bottom plate. A dishwasher comprising a front flange extending forward from a side edge of the front of the dishwasher. 5. The dishwasher according to claim 1, wherein the opening / closing mechanism includes a supporting member for rotatably supporting the opening / closing door, and the supporting member is provided along the outer surface of the washing room. A dishwasher characterized by being fixed to a vertical flange. 6. The dishwasher according to claim 5, further comprising a bottom structural member that supports the washing room below the washing room, wherein the bottom structural member, the vertical flange, and the support member are fixed to each other. Dishwasher characterized by that.