JP3447556B2 - Urging force adjusting device for dishwasher and dishwasher - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door body which is arranged so as to be able to move up and down with respect to a main body of a washing machine and which has a bottom portion which opens and closes a door body for partitioning a washing chamber. Regarding the dishwasher biasing force adjustment device and dishwasher that can adjust the biasing force of the spring stretched between the door body and the rear panel of the washer body according to the weight, especially a large space is required The present invention relates to an urging force adjustment device for a dishwasher and a dishwasher that can adjust the urging force of a spring over a wide range without the above.

[0002]

2. Description of the Related Art Conventionally, in order to easily open and close a door body for opening and closing a washing chamber of a dishwasher, a spring is provided between the washer body and the door body in consideration of a balance with the weight of the door body. It is carried out. Various methods have been adopted for mounting such a spring, and various biasing force adjusting devices for adjusting the biasing force of the spring have been proposed. For example, in Japanese Examined Patent Publication No. 8-32257, an arm support plate attached to a rear wall of a cleaning main body rotatably supports an arm connected to an inner wall of a door body, and is mounted on the arm. A configuration in which a coil spring is mounted between the plate and a mounting plate that extends inward from the rear wall is described. At this time, a bolt is attached to the lower attachment plate in an upward direction, and a fixing tool attached to the inside of the lower end of the coil spring is screwed to the bolt so as to be vertically movable. The biasing force of the coil spring is adjusted by rotating the bolt and changing the position of the fixture on the bolt.

Japanese Utility Model Publication No. 3-44132 discloses that
At the back of the main body of the washing machine, a spring member is stretched via a turnbuckle between a pair of locking parts formed on the handle and a pair of projecting pieces provided at the back of the cleaning tank. The configuration in which the biasing force of the spring member is adjusted by each turnbuckle is described.

[0004]

However, in the biasing force adjusting mechanism of the coil spring described in the above Japanese Patent Publication No. 8-32257, when the coil spring is mounted between the upper and lower mounting plates, the spring It is necessary to always screw the fixture crimped to the inside of the lower end portion to the bolt, and such screwing work must be performed by rotating the bolt under the mounting plate. Thus, it is necessary to rotate the bolts simply to hang the coil spring between the mounting plates, which makes the work of hanging the coil spring complicated. In addition, in this adjusting mechanism, the bolt is rotated under the mounting plate to change the position of the fixture on the bolt to adjust the biasing force of the coil spring. In addition, the length of the bolt is limited to a range, and thus it is difficult to adjust the biasing force of the coil spring over a wide range. At this time, it is sufficient to increase the length of the bolt, but a special bolt is required, which causes an increase in cost. Furthermore,
While adjusting the biasing force of the coil spring, there is a risk that the fixture may come off the bolt. In this case,
It is necessary to rotate the bolt again to perform the work of mounting the coil spring between the mounting plates and the work of adjusting the urging force.

In this regard, in the adjusting mechanism disclosed in Japanese Utility Model Publication No. 3-44132, between the pair of locking portions formed on the handle and the pair of projecting pieces provided on the back of the cleaning tank. Since the spring member is stretched via the turnbuckle and the biasing force of the spring member is adjusted by each turnbuckle, as in the adjusting mechanism of Japanese Patent Publication No. 8-32257, the spring member is There is no fear that the mounting work of will be complicated.

However, the turnbuckle used in the adjusting mechanism of Japanese Utility Model Publication No. 3-44132 is a turnbuckle having a general structure having two adjusting bolts movably provided on both sides of the buckle member. However, in this type of turnbuckle, at present, no consideration is given to a structure for preventing the two adjusting bolts used for the turnbuckle from slipping out of the buckle member. Therefore, if the buckle member is carelessly rotated, there is a possibility that the adjusting bolt may come out of the buckle member.

Also in this adjusting mechanism, the range in which the biasing force of the spring member can be adjusted is limited to the performance of the turnbuckle used in the adjusting mechanism. Therefore, a general turnbuckle is configured to adjust the distance between the two adjustment bolts by rotating the buckle member, and the adjustable distance is not so large. The range in which the biasing force of the spring member can be adjusted is narrow. Therefore, also in the adjusting mechanism of Japanese Utility Model Publication No. 3-44132, the spring member may be disengaged from the turnbuckle as in the adjusting mechanism of Japanese Patent Publication No. 8-32257, and the spring member is attached. The power cannot be adjusted over a wide range.

The present invention has been made to solve the above-mentioned conventional problems and is for a dishwasher capable of adjusting the biasing force of a spring over a wide range without requiring a large space. It is an object to provide a biasing force adjusting device and a dishwasher.

[0009]

In order to achieve the above object, a biasing force adjusting device for a dishwasher according to the present invention includes a door body that is vertically movable in a washing machine body, and a back side of the door body. Washing
It is installed vertically between the machine body and the door body
Used in dishwashers with springs that bias towards
In the urging force adjusting device for a dishwasher that adjusts the urging force of the spring , the urging force adjusting device has an upper end of the spring.
To the back side of the door, and lower the bottom of the spring.
It is locked to the upper end of the first adjustment bolt, and the second
The lower end of the adjusting bolt is locked, and the first adjusting bolt and the second adjusting bolt
Connect the adjustment bolt with the buckle member to
The lower end of the first adjusting bolt and the upper end of the second adjusting bolt causes close-spaced upon rotation of the member, fitted to be able to structure <br/> forming one of the first adjusting bolt and the second adjusting bolt inside the other It is characterized by having done.

In the urging force adjusting device, when adjusting the urging force of the spring for urging the door body upward, the buckle member is rotated. When the buckle member is rotated in this manner, the lower end of the first adjustment bolt and the upper part of the second adjustment bolt are
The ends are close to or spaced from each other. The biasing force of the spring is adjusted within a predetermined range based on the mutual movement of the first adjustment bolt and the second adjustment bolt. Further, when the buckle member is further rotated, one of the first adjusting bolt and the second adjusting bolt is fitted inside the other, so that the range in which the biasing force of the spring can be adjusted is enlarged without requiring a large space. Thus, the biasing force of the spring can be adjusted over a wide range beyond the predetermined range.

Further, the dishwasher according to the present invention is provided with a door body which is arranged so as to be able to move up and down along a guide rail erected on the main body of the washing machine and has an open bottom, and a rear surface of the main body of the washing machine. A rear panel, a first spring locking part mounted on the door body, a second spring locking part mounted on the rear panel, the first spring locking part and the second bar.
It is hung in a vertical direction between the Ne locking portion, and a spring for biasing the door body upward, is connected continuously to the spring, the spring lower end of the second spring locking portion consists to be interposed <br/> with both spring dishwasher force adjustment device with a with a turnbuckle for adjusting the biasing force of between, said turnbuckle, said upper end of said spring first Engage in the spring lock
Stop and the lower end of the spring to the upper end of the first adjusting bolt.
Lock the lower end of the second adjusting bolt to the second spring locking portion.
Lock the first adjustment bolt and the second adjustment bolt together.
It is connected via a clue member, and when the buckle member rotates, the first
The lower end of the adjustment bolt and the upper end of the second adjusting bolt causes close-spaced, characterized in that one of the first adjusting bolt and the second adjusting bolt fitted capable constructed inside the other.

In the dishwasher, the urging force of the spring vertically mounted between the first spring retaining portion attached to the door body and the second spring retaining portion attached to the rear panel is applied. When adjusting, the buckle member of the turnbuckle is rotated. When the buckle member is rotated in this manner, the lower end of the first adjusting bolt and the upper end of the second adjusting bolt are
Close to or away from each other. The biasing force of the spring is adjusted within a predetermined range based on the mutual movement of the first adjustment bolt and the second adjustment bolt. Further, when the buckle member is further rotated, one of the first adjusting bolt and the second adjusting bolt is fitted inside the other, so that the range in which the biasing force of the spring can be adjusted is enlarged without requiring a large space. Thus, the biasing force of the spring can be adjusted over a wide range beyond the predetermined range.

Here, in the dishwasher, the buckle member is formed with a first screw hole into which a first adjusting bolt is screwed and a second screw hole into which a second adjusting bolt is screwed. It is preferable that the first adjusting bolt has a recess formed therein, and the second adjusting bolt is capable of moving forward and backward in the recess while being fitted in the recess. In such a case, when the buckle member is rotated, the first adjusting bolt cooperates with the first screw hole, and the second adjusting bolt moves to the second adjusting bolt.
By cooperation with the screw holes, they come close to or away from each other. Further, when the buckle member is rotated, the second adjustment bolt is
It moves forward and backward while being fitted in the recess of the first adjustment bolt. As a result, the biasing force of the spring can be adjusted over a wide range. Further, it is preferable that a retaining member fixed to the lower end of the first adjusting bolt and having a larger diameter than the first screw hole is provided. Thus, when the retaining member is fixed to the lower end of the first adjusting bolt, it is ensured that the first adjusting bolt will not come out of the first screw hole of the buckle member even if the buckle member is rotated too much. It becomes possible to prevent it.

Furthermore, a cleaning tank provided in the washing machine body, the lower the definitive one side of the cleaning tank at the rear panel
Wash the first cover member that is placed and the rear panel side.
It is placed on the upper side of one side of the tank and below it.
The end is displaced inward from the upper end of the first cover member.
Above the first cover member and the arranged second cover member
The biasing force adjusting device between the end and the lower end of the second cover member.
And a passage formed corresponding to the arrangement position of
When washing the dishes with the purifier body, wash water is
It is desirable to pour into the urging force adjusting device as it passes through . According to this structure, a part of the wash water used when washing the dishes is separated from the upper end of the first cover member and the second cover.
-Biasing force adjustment via a passage formed between the lower end of the member
Since it is poured into the leveling device , it is possible to prevent the food residue attached to the tableware from attaching to the biasing force adjusting device .

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, a dishwasher according to the present invention will be described in detail with reference to the drawings based on an embodiment in which the present invention is embodied. First, the schematic configuration of the dishwasher will be described with reference to FIG. FIG. 1 is a perspective view of a dishwasher showing a state in which an opening / closing door is opened. In FIG. 1, the dishwasher W includes a washing machine body 1. The washing machine main body 1 constitutes a lower portion of the dish washing machine W, and has an upper washing nozzle (not shown) and a lower washing nozzle 41 inside thereof.
A washing water supply pipe for supplying washing water and a washing pump are provided inside (see FIG. 7), and an upper rinse nozzle (not shown) and a lower rinse nozzle 42 (see FIG. 7).
A rinsing water supply pipe and a rinsing pump for supplying rinsing water are installed therein. In addition, various devices required for the washing machine are installed inside.

A rear panel 2 is disposed on the back of the main body 1 of the washing machine, and the front side of the rear panel 2 (in FIG. 1,
A pair of left and right guide rails 3 are erected on the front side of the paper surface.

Above the main body 1 of the washing machine, an opening / closing door 4 formed in a box shape with an open bottom is provided on each of the guide rails 3.
It is installed so that it can be moved up and down. Opening / closing door 4
Is for partitioning the cleaning chamber R (see FIGS. 2 and 4) at the time of closing, and cleaning is performed by spraying cleaning water from the upper cleaning nozzle and the lower cleaning nozzle 41 with the opening / closing door 4 closed. The tableware 7 stored in the tableware rack 6 placed on the rack placement part made up of a plurality of pipes 5 arranged in parallel at the upper part of the machine body 1 is washed. Also, FIG.
As shown in FIG. 5, with the opening / closing door 4 opened, the tableware rack 6 accommodating the tableware 7 is set in and removed from the washing room R.

On the outside of the opening / closing door 4, there is attached a handle 9 rotatable about two fulcrums 8 (only one fulcrum 8 is shown in FIG. 1) formed at the upper end of the rear panel 2. Has been. The handle 9 is formed in a substantially “U” shape so as to surround the opening / closing door 4. On the front side (left side in FIG. 1) of the handle 9, fulcrums 10 (only one fulcrum 10 is shown in FIG. 1) are provided at two locations facing each other, and similarly, A fulcrum 11 is provided on side walls 4A (only one of which is shown in FIG. 1) of the opening / closing door 4 facing each other. A link 12 is connected between each fulcrum 10 and fulcrum 11.

In the above structure, in order to open the opening / closing door 4, the handle 9 is rotated clockwise around the fulcrum 8.
As a result, the handle 9 is rotated in the clockwise direction around the fulcrum 8, and the link 12 corresponds to the rise of the handle 9.
Is also rotated clockwise. When the handle 9 is pushed upward in this state, the opening / closing door 4 is guided upward along the guide rails 3 and opened to the state shown in FIG.
To close the open / close door 4, the handle 9 is pushed downward, and the reverse operation is performed, whereby the open / close door 4 is set to the closed state. The operation panel 13 is attached to the upper side position of the rear panel 2. By operating the operation panel 13, it is possible to perform operations such as a cleaning operation and a rinsing operation.

Next, the back inner wall of the opening / closing door 4 and the rear panel 2
2 shows a spring mechanism arranged between the inner wall and the inner wall of the
And FIG. 3 will be described. 2 is a side view of the cleaning chamber schematically showing the spring mechanism and the spring biasing force adjusting mechanism, and FIG. 3 is a rear view of the cleaning chamber schematically showing the spring mechanism and the spring biasing force adjusting mechanism. Here, the spring mechanism attaches the opening / closing door 4 in its opening direction through a plurality of springs in consideration of the balance with the weight of the opening / closing door 4 so that the opening / closing door 4 can be easily opened and closed. It is a vibrating mechanism. The adjusting mechanism is a mechanism that allows the urging force of each spring used in the spring mechanism to be flexibly adjusted according to the weight of the opening / closing door 4.

2 and 3, a pair of housing members 14 are fixed to the upper portion of the inner wall of the rear panel 2,
The housing member 14 includes a semicircular arm support 1
5 is formed. Further, inside the opening / closing door 4, an "U" -shaped arm 16 is arranged along the inner wall thereof, and the arm 16 has a horizontal portion 16A based on the arrangement state.
And a rotating portion 16B. Horizontal part 16A of arm 16
Is rotatably supported by the arm supporting portion 15 of the housing member 14, and a plurality of plate members 17 are fixed to the horizontal portion 16A as shown in FIG. A shaft member 18 is arranged between the plate members 17.

Lower end portion 16C of rotating portion 16B of arm 16
Is formed in a plate shape, and an elongated hole 16D is formed in the lower end portion 16C. A link 20 is connected to the long hole 16D via a fulcrum 19. A fulcrum 21 is provided at the other end of the link 20. And fulcrum 2 of link 20
A reinforcing plate 23 is connected between 1 and a fixing member 22 formed on the side wall of the opening / closing door 4. When the handle 20 is pushed up to open the opening / closing door 4 as described above, the link 20 cooperates with each other to rotate the arm 16 in the clockwise direction in FIG. 2 with the arm support portion 15 as a fulcrum. To act. An upper hook portion 24A of the hook member 24 is locked to each shaft member 18 disposed between each plate member 17. The lower hook portion 24B of the hook member 24 has a spring 25
The upper end of is locked.

Here, in the dishwasher W of the present embodiment, five shaft members 18 are provided, and similarly, five springs 25 are arranged via five hook members 24. ing. The number of springs 25 can be appropriately changed according to the weight of the opening / closing door 4. Also, 5 springs 2
Of the five, one group of three springs 25 (springs 25 at the left end position, the central position, and the right end position (not shown) in FIG. 3) and the remaining two springs 25 of the other group (in FIG. 3, The spring 25) at the second position and the fourth position (not shown) from the left end position has different locking mechanisms at their lower ends.

For example, the lower ends of the group of springs 25 are engaged with the upper hook portion 26A of the hook member 26, and
The lower hook portion 26B of the hook member 26 is locked in a locking hole 27A of a locking plate 27 fixed to the lower inner wall of the rear panel 2. A plurality of locking holes 27A are formed in the locking plate 27, and the biasing force of the spring 25 is adjusted by changing the position of the locking hole 27A that locks the lower hook portion 26B of the hook member 26. can do. Since there are three springs 25 in one group, the total biasing force of the five springs 25 mainly depends on the position of the locking hole 27A of the locking plate 27 in which the three springs 25 in one group are locked. Adjusted.

The lower end of the spring 25 of the other group is locked to the first adjusting bolt 29 of the turnbuckle 28.
The turnbuckle 28 is provided with the locking plate 3 attached to the lower part of the inner wall of the rear panel 2 via the second adjusting bolt 30.
1 (see FIG. 5). Here, the turnbuckle 28 includes a first adjusting bolt 29 and a second adjusting bolt 30.
By rotating the buckle member 32 interconnecting and, the urging force of the spring 25 is finely adjusted.
The biasing force of the spring 25 of the other group is the turnbuckle 2
Since it is finely adjusted via 8, each turnbuckle 2
8 is used for fine adjustment of the overall biasing force of the spring 25. Further, each spring 25 has an urging force of a certain amount or more from the start of using the dishwasher W until a certain period of time elapses, but if the use is continued for a certain period or more, the urging force of each spring 25 is increased. In this case, the turnbuckle 28 is used to adjust the urging force of each spring 25.

The structure of the turnbuckle 28 will now be described with reference to FIGS. 4, 5 and 6. 4 is an enlarged front view of the turnbuckle 28, FIG. 5 is a front view of the turnbuckle 28 showing a state where the first adjusting bolt 29 and the second adjusting bolt 30 are separated from each other to the maximum extent, and FIG. 6 is a first adjusting diagram. FIG. 9 is a front view of the turnbuckle 28 showing a state in which the bolt 29 and the second adjustment bolt 30 are brought close to each other to the maximum extent.

In FIG. 4, the turnbuckle 28 is roughly composed of a buckle member 32, a first adjusting bolt 29, and a second adjusting bolt 30. The buckle member 32 is formed with a first screw hole 33 into which the first adjusting bolt 29 is screwed and a second screw hole 34 into which the second adjusting bolt 30 is screwed. Also, the first adjustment bolt 29
Has a locking portion 35 that locks the lower end of the spring 25 at one end (upper end in FIG. 4), and a recess 37 is provided inside the bolt that is screwed into the first screw hole 33. It is provided.
Further, a retaining member 38 is fixed to the other end (lower end in FIG. 4) of the bolt portion. The retaining member 38 has a diameter larger than that of the first screw hole 33 of the buckle member 32. Therefore, even when the buckle member 32 is rotated too much, the retaining member 38 has a lower end of the first screw hole 33. Will be locked in. As a result, the first adjustment bolt 29 is connected to the first screw hole 33 of the buckle member 32 via the retaining member 38.
It can be reliably prevented from coming off.

Further, the second adjusting bolt 30 has a locking portion 39 which is locked to the locking plate 31 at the lower end thereof and which is screwed into the second screw hole 34 of the buckle member 32. Parts. When the buckle member 32 is rotated, such a bolt portion is fitted in the recess 37 formed in the first adjustment bolt 29, and is movable back and forth in the recess 37.

As is apparent from the structure of the turnbuckle 28, when the biasing force of the spring 25 is reduced, the buckle member 32 is rotated in a predetermined direction. This allows
The bolt portion of the first adjustment bolt 29 moves upward in the first screw hole 33, and the bolt portion of the second adjustment bolt 30 is
The second screw hole 34 is moved downward. Therefore, as shown in FIG. 4, the lower end of the first adjustment bolt 29 and the second adjustment bolt 3
The upper end of 0 is separated from each other, and as a result, the biasing force of the spring 25 is reduced. At this time, when the buckle member 32 is rotated too much, the first adjustment bolt 29 is not attached to the first screw hole 3
3, the retaining member 38 is fixed to the lower end of the first adjusting bolt 29, so that the first adjusting bolt 29 is removed from the first screw hole 33 of the buckle member 32 as shown in FIG. It can be reliably prevented from coming off.

When the biasing force of the spring 25 is increased, the buckle member 32 is rotated in the direction opposite to the predetermined direction. As a result, the bolt portion of the first adjusting bolt 29 moves downward in the first screw hole 33, and the bolt portion of the second adjusting bolt 30 moves upward in the second screw hole 34. Therefore, the lower end of the first adjusting bolt 29 and the upper end of the second adjusting bolt 30 are brought close to each other, and as a result, the spring 2
The urging force of 5 becomes large. Further, the buckle member 3
When 2 is rotated, the bolt portion of the second adjusting bolt 30 becomes
The first adjustment bolt 29 is fitted into the recess 37 and moves upward in the recess 37, and finally, as shown in FIG.
The adjustment bolt 30 stops with the upper end of the bolt portion abutting the inner upper end of the recess 37 of the first adjustment bolt 29. In this state, the biasing force of the spring 25 becomes maximum.
The adjustment of the biasing force of the spring 25 by the turnbuckle 28 is performed by raising the opening / closing door 4 as shown in FIG.
This is performed after the first inner cover 44 and the second inner cover 46, which will be described later, are removed. In this way, if the first inner cover 44 and the second inner cover 46 are removed,
The biasing force of each spring 25 can be easily adjusted from the front side of the main body 1 of the washing machine.

Next, regarding the internal structure of the cleaning room R, FIG.
A description will be given based on FIG. 7. FIG. 7 is an enlarged cross-sectional view showing the structure of the bottom portion and the back portion of the cleaning chamber R with some parts omitted.
In these drawings, the front side (FIG. 2,
Lower wall (slope) inclined toward the left side in Fig. 7.
A lower cleaning nozzle 41 and a lower rinsing nozzle 42 are arranged above 40. A cleaning tank 43 is formed below the lower wall 40.

A first inner cover 44 is placed on the lower wall 40 above the back of the cleaning tank 43. The first inner cover 44 corresponds to the position of the turnbuckle 28. A recess 45 is formed. Further, a second inner cover 46 is arranged above the first inner cover 44 so as to partition the back of the cleaning chamber R. The lower end portion 47 of the second inner cover 46
Are arranged to be displaced inward from the upper end portion 48 of the first inner cover 44, whereby the first inner cover 4 is
4 and the lower end 47 of the second inner cover 46.
A passage 49 is formed between the and, based on the recess 45. When the tableware 7 is cleaned and rinsed in the cleaning chamber R, the passage 49 has a function of passing the cleaning water sprayed from the lower cleaning nozzle 41 and the rinse water sprayed from the lower rinse nozzle 42. Therefore, as is clear from FIG. 7, after the cleaning water and the rinse water enter the inside of the rear panel 2 through the passage 49, they are poured into the turnbuckle 28 and adhere to the tableware 7 from this. It is possible to prevent food waste from adhering to the turnbuckle 28. The concave portion 45 formed in the first inner cover 44 includes the lower cleaning nozzle 41 and the lower rinsing nozzle 42.
When rotating, it also has the effect of enabling that rotation. The wash water and rinse water poured into the turnbuckle 28 are returned to the wash tank 43.

As described above in detail, in the dishwasher W according to the present embodiment, each plate attached to the horizontal portion 16A of the arm 16 rotatably arranged inside the opening / closing door 4 via the housing member 14. With respect to the shaft member 18 provided between the members 17, the spring 2 is provided via the hook member 24.
5 The upper end is locked, and the lower end of the spring 25 and the locking plate 3
When the turnbuckle 28 is interposed between the turnbuckle 28 and the first buckle 1, the buckle member 32 of the turnbuckle 28 is rotated to adjust the urging force of the spring 25. Based on the cooperation of the first adjusting bolt 29 and the second adjusting bolt 30, the second adjusting bolt 30 is moved toward or away from each other, and the second adjusting bolt 30 is moved to the recess 3 of the first adjusting bolt 29.
Since it is configured to move forward and backward while being fitted into the inside of 7, the range in which the biasing force of the spring 25 can be adjusted is expanded without requiring a large space, and the biasing force of the spring 25 is spread over a wider range. Can be adjusted.

At the lower end of the first adjusting bolt 29,
Since the retaining member 38 having a diameter larger than that of the first screw hole 33 of the buckle member 32 is fixed, the first adjustment bolt 29 causes the first screw hole 33 of the buckle member 32 even when the buckle member 32 is rotated too much. It can be reliably prevented from coming off.

Further, above the back of the cleaning tank 43, a first inner cover 44 having a recess 45 corresponding to the position of the turnbuckle 28 is placed on the lower wall 40, and the first inner cover is placed. Since the second inner cover 46 is arranged above 44, and the passage 49 is formed between the upper end portion 48 of the first inner cover 44 and the lower end portion 47 of the second inner cover 46, the tableware 7 in the washing chamber R is formed. When cleaning and rinsing, the cleaning water sprayed from the lower cleaning nozzle 41 and the rinse water sprayed from the lower rinse nozzle 42 are poured into the turnbuckle 28 after passing through the passage 49, As a result, it is possible to prevent the food waste attached to the tableware 7 from attaching to the turnbuckle 28.

The present invention is not limited to the above embodiment, and it goes without saying that various improvements and modifications can be made without departing from the spirit of the present invention.

[0037]

As described above, the present invention can provide a dishwasher capable of adjusting the biasing force of a spring over a wide range without requiring a large space.

[Brief description of drawings]

FIG. 1 is a perspective view of a dishwasher showing a state in which an opening / closing door is opened.

FIG. 2 is a side view of a cleaning chamber schematically showing a spring mechanism and a spring biasing force adjusting mechanism.

FIG. 3 is a rear view of a cleaning chamber schematically showing a spring mechanism and a spring biasing force adjusting mechanism.

FIG. 4 is a front view showing an enlarged turnbuckle.

FIG. 5 is a front view of the turnbuckle showing a state in which the first adjusting bolt and the second adjusting bolt are maximally separated from each other.

FIG. 6 is a front view of the turnbuckle showing a state in which the first adjusting bolt and the second adjusting bolt are brought close to each other to the maximum extent.

FIG. 7 is an enlarged cross-sectional view showing a structure of a bottom portion and a back portion in the cleaning chamber, with some parts omitted.

[Explanation of Codes] 1 ... Washer main body, 2 ... Rear panel, 3 ... Guide rail, 4 ... Open / close door, 7 ... Tableware, 9 ...
Handle, 14 ... Housing member 16 ... Arm, 17 ... Plate member, 18 ... Shaft member, 24 ...
Hook member, 25 ... Spring, 26 ... Hook member,
27 ... Locking plate, 27A ... Locking hole, 28 ... Turnbuckle, 29 ... First adjusting bolt, 30 ...
Second adjusting bolt, 31 ... locking plate, 32 ... buckle member, 33 ... first screw hole, 34 ... second screw hole, 37 ... recess, 38 ... 41 ... Lower cleaning nozzle, 42 ... Lower rinsing nozzle, 43 ... Cleaning tank, 44 ... First inner cover, 45 ... Recessed portion, 46 ... Second inner cover, 49 ... ·aisle,
W: Dishwasher

─────────────────────────────────────────────────── ─── Continuation of front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) A47L 15/00-15/42

Claims (5)

(57) [Claims] 1. A door body which is vertically movable in a washing machine body.
And vertically arranged between the back side of the door and the main body of the washing machine
And a spring that biases the door upward.
In a dishwasher biasing force adjusting device for use in a dishwasher having , wherein the biasing force adjuster locks the upper end of the spring to the back side of the door body.
The lower end of the spring is locked to the upper end of the first adjusting bolt, the lower end of the second adjusting bolt is locked to the main body of the washing machine, and the first adjusting bolt and the second adjusting bolt are connected to the buckle member.
, The lower end of the first adjusting bolt and the upper end of the second adjusting bolt can be brought close to or separated from each other when the buckle member is rotated, and one of the first adjusting bolt and the second adjusting bolt can be fitted inside the other. An urging force adjusting device for a dishwasher, which is configured as described above. 2. A door body that is vertically movable along a guide rail provided upright on the main body of the washing machine and has an open bottom, a rear panel provided on the back surface of the main body of the washing machine, and the door. A first spring locking part mounted on the body, a second spring locking part mounted on the rear panel, and a vertical direction between the first spring locking part and the second spring locking part <br / > is hung on a spring that urges the door body upward, is connected continuously to the spring, the spring while being interposed between the lower end and a second spring engaging portion of the spring A dishwasher biasing force adjusting device having a turnbuckle for adjusting a biasing force, wherein the turnbuckle locks the upper end of the spring with the first spring locking portion.
The lower end of the spring is locked to the upper end of the first adjusting bolt, the lower end of the second adjusting bolt is locked to the second spring locking portion, and the first adjusting bolt and the second adjusting bolt are buckled together.
, The lower end of the first adjusting bolt and the upper end of the second adjusting bolt can be brought close to or separated from each other when the buckle member is rotated, and one of the first adjusting bolt and the second adjusting bolt can be fitted inside the other. A dishwasher characterized by being configured as. 3. The buckle member is formed with a first screw hole into which a first adjusting bolt is screwed and a second screw hole into which a second adjusting bolt is screwed, 3. The dishwasher attachment according to claim 1 or 2, wherein a concave portion is formed inside thereof, and the second adjustment bolt is adapted to be fitted into the concave portion and movable back and forth within the concave portion. Power adjustment device. 4. The first adjustment bolt is fixed to a lower end of the bolt,
The biasing force adjusting device for a dishwasher according to claim 3, further comprising a retaining member having a diameter larger than that of the first screw hole. 5. A cleaning tank provided in the washer main body, disposed under the definitive one side of the cleaning tank at the rear panel
The first cover member and the rear panel side above the cleaning tank.
And the lower end is the upper end of the first cover member.
A second cover member disposed so as to be displaced inward from the first cover member, and an upper end of the first cover member and a lower end of the second cover member.
Formed corresponding to the arrangement position of the biasing force adjusting device between
When the tableware is washed by the main body of the washing machine,
The dishwasher according to any one of claims 2 to 4, wherein the dishwasher passes through the passage and is poured into the biasing force adjusting device .