JPH11285464A - Urging force adjuster for dishwasher and dishwasher - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a dishwasher that does not require a large space and whose urging force can be adjusted in a wide range. SOLUTION: The upper ends of springs 25 are engaged with shaft members 18 provided between plate members 17 attached to the horizontal portion 16A of an arm 16 arranged rotatably through a housing member 14 inside a door, through a hook member 24, and turnbuckles 28 are arranged between the lower ends of the springs 25 and engagement plates 31. To adjust the urging force of the springs 25, the first adjusting bolts 29 and the second adjusting bolts 30 are brought nearer or separated by turning the buckle members 32 of the turnbuckles 28 on the basis of cooperation between the first threaded holes 33 and the second threaded holes 34. The second adjusting bolts 30 are advanced or withdrawn while fitting into recesses 37 of the first adjusting bolts 29.

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 provided so as to be able to move up and down with respect to a main body of a washing machine, and has a bottom portion opened so as to facilitate opening and closing operations of a door body defining a washing room. A large space is required particularly for a dishwasher urging force adjusting device and a dishwasher in which the urging force of a spring stretched between a door body and a rear panel of the main body of the washing machine can be adjusted according to the weight. TECHNICAL FIELD The present invention relates to a dishwasher urging force adjusting device and a dishwasher capable of adjusting the urging force of a spring over a wide range without making any adjustment.

[0002]

2. Description of the Related Art Conventionally, in order to easily open and close a door for opening and closing a washing chamber of a dishwasher, a spring is provided between the main body of the washing machine and the door in consideration of the weight of the door. It has been carried out. Various methods have been adopted for mounting such a spring, and various urging force adjusting devices for adjusting the urging force of the spring have been proposed. For example, Japanese Patent Publication No. Hei 8-32257 discloses that an arm connected to the inner wall of a door body is rotatably supported by an arm support plate attached to a rear wall of a cleaning body, and an arm disposed on the arm. A configuration in which a coil spring is mounted between a plate and a mounting plate extending inward from a rear wall is described. At this time, a bolt is attached upward to the lower attachment plate, and a fixture attached inside 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.

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

[0004]

However, in the mechanism for adjusting the biasing force of the coil spring described in Japanese Patent Publication No. Hei 8-32257, when the coil spring is mounted between the upper and lower mounting plates, the spring is not moved. It is necessary to screw the fixing device crimped to the inside of the lower end portion into the bolt, and the screwing operation must be performed by rotating the bolt below the mounting plate. As described above, it is necessary to rotate the bolt simply to mount the coil spring between the mounting plates, and the mounting operation of the coil spring becomes complicated. In this adjusting mechanism, the urging force of the coil spring is adjusted by rotating the bolt below the mounting plate and changing the position of the fixture on the bolt, but the adjusting range is the characteristic of the adjusting mechanism. In addition, the length of the bolt is limited to the range, and it is difficult to adjust the biasing force of the coil spring over a wide range. At this time, the length of the bolt may be increased, but a special bolt is required, which leads to an increase in cost. Furthermore,
While adjusting the biasing force of the coil spring, there is also a possibility that the fixing tool may come off from the bolt. In this case,
It is necessary to rotate the bolt again to mount the coil spring between the mounting plates and adjust the urging force.

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

However, the turnbuckle used in the adjustment mechanism disclosed in Japanese Utility Model Publication No. 3-44132 is a turnbuckle having a general configuration having two adjustment bolts movably provided on both sides of a buckle member. In this type of turnbuckle, at present, no configuration is considered for preventing the two adjustment bolts used therefrom from coming off the buckle member. Therefore, if the buckle member is rotated carelessly, there is a possibility that the adjustment bolt may come off from the buckle member.

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, in a general turnbuckle, the distance between the two adjustment bolts is adjusted by rotating the buckle member, and the adjustable distance is not so large. The range over which the biasing force of the spring member can be adjusted is narrow. Accordingly, in the adjusting mechanism disclosed in Japanese Utility Model Publication No. 3-44132, there is a possibility that the spring member may come off the turnbuckle, as in the adjusting mechanism described in Japanese Patent Publication No. 8-32257. The power cannot be adjusted over a wide range.

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

[0009]

In order to achieve the above-mentioned object, a urging force adjusting device for a dishwasher according to the present invention urges a door, which is disposed on a main body of a washing machine, to be able to move up and down. In a urging force adjusting device for a dishwasher for adjusting an urging force of a spring, the urging force adjusting device has a first adjusting bolt having one end locked to a lower end of a spring and one end locked to a main body of the washing machine. A second adjusting bolt, the first adjusting bolt and the second
An adjusting bolt is connected, and the other end of the first adjusting bolt and the other end of the second adjusting bolt are moved toward and away from each other during rotation, and one of the first adjusting bolt and the second adjusting bolt can be inserted into the other. And a buckle member.

In the urging force adjusting device, when adjusting the urging force of the spring for urging the door upward, the buckle member is rotated. When the buckle member is rotated in this manner, the first adjustment bolt and the second adjustment bolt move toward 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 adjustment bolt and the second adjustment bolt is fitted into the other, so that the range in which the biasing force of the spring can be adjusted is increased without requiring a large space. Thus, the biasing force of the spring can be adjusted over a wide range beyond the predetermined range.

The dishwasher according to the present invention is provided with a door body which is disposed so as to be able to move up and down along a guide rail provided upright on the body of the washer and has an open bottom, and a back surface of the body of the washer. , A first spring engaging portion attached to the door body, a second spring engaging portion attached to the rear panel, the first spring engaging portion and the second engaging portion. And a spring that urges the door body upward and that is continuously connected to the spring and is interposed between a lower end of the spring and a second spring locking portion, and A turn buckle that adjusts the biasing force of the first buckle, the first buckle having one end locked to a lower end of a spring, and the second adjustment bolt having one end locked to a second spring locking portion. And the first adjustment bolt and the second adjustment bolt are connected, and A buckle member that moves the other end of the first adjustment bolt and the other end of the second adjustment bolt toward and away from each other, and allows one of the first adjustment bolt and the second adjustment bolt to be fitted into the other; It is characterized by.

In the above-mentioned dishwasher, when adjusting the urging force of the spring mounted between the first spring engaging portion attached to the door body and the second spring engaging portion attached to the rear panel. The buckle member of the turnbuckle is rotated. When the buckle member is rotated in this manner, the first adjustment bolt and the second adjustment bolt move toward 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. Also,
When the buckle member is further rotated, one of the first adjustment bolt and the second adjustment bolt is fitted into the other, so that the range in which the biasing force of the spring can be adjusted is increased without requiring a large space, The biasing force of the spring can be adjusted over a wide range beyond the predetermined range.

Here, in the dishwasher, the buckle member has a first screw hole into which the first adjustment bolt is screwed and a second screw hole into which the second adjustment bolt is screwed. It is preferable that the first adjustment bolt has a recess formed therein, and the second adjustment bolt is capable of moving forward and backward within the recess while being fitted into the recess. In such a case, when the buckle member is rotated, the first adjustment bolt cooperates with the first screw hole, and the second adjustment bolt rotates the second adjustment bolt.
Cooperate with the screw holes to approach or separate from each other. Further, when the buckle member is rotated, the second adjustment bolt
It moves forward and backward while being fitted into the recess of the first adjustment bolt. As a result, the biasing force of the spring can be adjusted over a wide range. In addition, it is preferable that a retaining member fixed to a lower end of the first adjustment bolt and having a diameter larger than that of the first screw hole is provided. In this manner, when the retaining member is fixed to the lower end of the first adjustment bolt, even if the buckle member is excessively rotated, it is ensured that the first adjustment bolt is removed from the first screw hole of the buckle member. This can be prevented.

Further, a washing tank provided in the washing machine main body and a washing tank arranged on one side of the washing tank on the rear panel side and formed corresponding to an arrangement position of the turnbuckle are provided by the washing machine main body. It is desirable to provide a cover member having a passage through which the washing water is passed to the turnbuckle when washing the dishes. According to this structure, a part of the washing water used for washing the tableware is poured into the turnbuckle through the passage of the cover member, whereby the food residue attached to the tableware is turned. It can be prevented from adhering to the buckle.

[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 embodying the present invention. First, a schematic configuration of a dishwasher will be described with reference to FIG. FIG. 1 is a perspective view of the dishwasher showing a state where an opening / closing door is opened. In FIG. 1, a dishwasher W includes a washer body 1. The washing machine main body 1 constitutes a lower portion of the dishwasher W, and includes therein an upper washing nozzle (not shown) and a lower washing nozzle 41.
A cleaning water supply pipe and a cleaning pump for supplying cleaning water to (see FIG. 7) are provided therein, and an upper rinsing nozzle (not shown) and a lower rinsing nozzle 42 (see FIG. 7).
A rinsing water supply pipe and a rinsing pump for supplying rinsing water thereto are provided internally. In addition, various devices necessary for the washing machine are also installed.

A rear panel 2 is provided at the back of the main body 1 of the washing machine, and a front side of the rear panel 2 (in FIG. 1,
A pair of left and right guide rails 3 are provided upright on the front side of the drawing).

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 with each of the guide rails 3.
Is provided so as to be able to ascend and descend along. Such a door 4
Is used to define a cleaning chamber R (see FIGS. 2 and 4) when the cleaning chamber R is closed. 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 a tableware rack 6 placed on a rack placement part comprising a plurality of pipes 5 arranged in parallel at the upper part of the machine body 1 is washed. FIG.
As shown in (2), the table rack 6 containing the tableware 7 is set into and removed from the washing room R with the opening and closing door 4 opened.

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

In the above configuration, to open the door 4, the handle 9 is rotated clockwise about the fulcrum 8.
As a result, the handle 9 is rotated clockwise around the fulcrum 8, and the link 12 is
Is also rotated clockwise. When the handle 9 is pushed upward in this state, the opening / closing door 4 is guided to move upward along each guide rail 3 and is opened to the state shown in FIG.
In order to close the door 4, when the handle 9 is pushed down, the reverse operation is performed, whereby the door 4 is set to the closed state. The operation panel 13 is attached to the upper side of the rear panel 2. By operating the operation panel 13, operations such as a cleaning operation and a rinsing operation can be performed.

Next, the back inner wall of the door 4 and the rear panel 2
FIG. 2 shows a spring mechanism disposed between the spring mechanism and the inner wall, and an adjustment mechanism for adjusting the urging force of the spring in the spring mechanism.
And FIG. FIG. 2 is a side view of a cleaning chamber schematically showing a spring mechanism and a spring urging force adjusting mechanism, and FIG. 3 is a rear view of the cleaning chamber schematically showing the spring mechanism and a spring urging force adjusting mechanism. Here, the spring mechanism attaches the opening / closing door 4 in the opening direction thereof 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 / closed. It is a mechanism that forces. The adjustment 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 door 4.

2 and 3, a pair of housing members 14 are fixed to the upper part of the inner wall of the rear panel 2,
The housing member 14 includes a semicircular arm support 1.
5 are formed. Further, inside the opening / closing door 4, a “U” -shaped arm 16 is arranged along the inner wall thereof, and the arm 16 is arranged on the horizontal portion 16 </ b> A based on the arrangement state.
And a rotating portion 16B. Horizontal part 16A of arm 16
Is rotatably supported by an arm support 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 provided between the plate members 17.

The lower end 16C of the rotating portion 16B of the arm 16
Is formed in a plate shape, and a long hole 16D is formed in the lower end portion 16C. A link 20 is connected to the long hole 16D via a fulcrum 19. At the other end of the link 20, a fulcrum 21 is provided. And the fulcrum 2 of the link 20
A reinforcing plate 23 is connected between 1 and a fixing member 22 formed on the side wall of the door 4. The link 20 cooperates with each other to rotate the arm 16 in the clockwise direction in FIG. 2 when the handle 9 is pushed up to open the opening / closing door 4 upward as described above, with the arm supporting portion 15 as a fulcrum. Perform the action. An upper hook portion 24A of the hook member 24 is locked to each shaft member 18 disposed between the plate members 17. A spring 25 is attached to the lower hook portion 24B of the hook member 24.
Is locked at the upper end.

Here, in the dishwasher W of this embodiment, five shaft members 18 are provided, and similarly, five springs 25 are arranged via five hook members 24. ing. The number of the springs 25 can be appropriately changed according to the weight of the door 4. In addition, five springs 2
5, a group of three springs 25 (springs 25 at the left end position, the center position, and the right end position (not shown) in FIG. 3) and the remaining two springs 25 (FIG. 3, The springs at the second position and the fourth position (not shown) from the left end position have different locking mechanisms at the 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,
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 for locking the lower hook portion 26B of the hook member 26. can do. Since there are three springs in a group, the total urging force of the five springs 25 mainly depends on the position of the locking hole 27A of the locking plate 27 in which the group of three springs 25 is locked. Adjusted.

The lower end of the other group of springs 25 is locked to a first adjustment bolt 29 of the turnbuckle 28.
Note that the turnbuckle 28 is connected to the locking plate 3 attached to the lower portion of the inner wall of the rear panel 2 via the second adjustment 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 that interconnects the buckle member and the buckle member, the biasing force of the spring 25 is finely adjusted.
The urging force of the other group of springs 25 is
8 so that each turn buckle 2
Reference numeral 8 is used to finely adjust the entire urging force by the spring 25. Further, each spring 25 has a certain urging force over a certain period from the start of using the dishwasher W until a certain period elapses. In such a case, each turnbuckle 28 is used to adjust the biasing force of each spring 25.

Here, the structure of the turnbuckle 28 will be described with reference to FIGS. FIG. 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 adjustment bolt 29 and the second adjustment bolt 30 are maximally separated, and FIG. 6 is a first adjustment. FIG. 4 is a front view of the turnbuckle showing a state in which a bolt and a second adjustment bolt are brought close to each other as much as possible.

In FIG. 4, the turnbuckle 28 is roughly composed of a buckle member 32, a first adjustment bolt 29, and a second adjustment bolt 30. The buckle member 32 has a first screw hole 33 into which the first adjustment bolt 29 is screwed, and a second screw hole 34 into which the second adjustment bolt 30 is screwed. Also, the first adjustment bolt 29
Has an engaging portion 35 at one end (the upper end in FIG. 4) for engaging the lower end of the spring 25, and a concave portion 37 inside the bolt portion screwed into the first screw hole 33. Is provided.
Further, a retaining member 38 is fixed to the other end (the lower end in FIG. 4) of the bolt portion. The retaining member 38 is formed to have a larger diameter than 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 is positioned at the lower end of the first screw hole 33. Will be locked. Thus, the first adjusting 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 falling off from.

The second adjusting bolt 30 has a locking portion 39 at the lower end thereof which is locked by the locking plate 31. The second adjusting bolt 30 has a bolt screwed into the second screw hole 34 of the buckle member 32. Having a part. When the buckle member 32 is rotated, the bolt portion is configured to be able to advance and retreat in the concave portion 37 while being fitted into the concave portion 37 formed in the first adjustment bolt 29.

As is apparent from the structure of the turnbuckle 28, when the urging 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 adjusting bolt 29 moves upward through the first screw hole 33, and the bolt portion of the second adjusting bolt 30
The second screw hole 34 is moved downward. Accordingly, as shown in FIG. 4, the lower end of the first adjustment bolt 29 and the second adjustment bolt 3
0 are separated from each other, and as a result, the biasing force of the spring 25 is reduced. At this time, if the buckle member 32 is excessively rotated, the first adjustment bolt 29 is
3, since the retaining member 38 is fixed to the lower end of the first adjusting bolt 29, the first adjusting bolt 29 is moved from the first screw hole 33 of the buckle member 32 as shown in FIG. 5. It is possible to reliably prevent slipping off.

When increasing the urging force of the spring 25, the buckle member 32 is rotated in a direction opposite to the predetermined direction. Thus, the bolt portion of the first adjustment bolt 29 moves down the first screw hole 33, and the bolt portion of the second adjustment bolt 30 moves up 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 biasing force of 5 becomes large. And further, the buckle member 3
When 2 is rotated, the bolt portion of the second adjustment bolt 30
The first adjustment bolt 29 is moved upward in the concave portion 37 while being fitted into the concave portion 37, and finally, as shown in FIG.
The adjustment bolt 30 stops in a state where the upper end of the bolt portion is in contact with the inner upper end of the concave portion 37 of the first adjustment bolt 29. In this state, the urging force of the spring 25 becomes maximum.
The adjustment of the urging force of the spring 25 by the turnbuckle 28 is performed by raising the open / close door 4 as shown in FIG.
This is performed after a first inner cover 44 and a second inner cover 46, which will be described later, are removed. As described above, if the first inner cover 44 and the second inner cover 46 are removed,
The adjustment of the urging force of each spring 25 can be easily adjusted from the front side of the cleaning machine main body 1.

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

A first inner cover 44 is mounted on the lower wall 40 above the back of the washing tank 43, and the first inner cover 44 corresponds to the position of the turnbuckle 28. Thus, a recess 45 is formed. Further, a second inner cover 46 is disposed 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 inwardly from the upper end 48 of the first inner cover 44, whereby the first inner cover 4
4 and a lower end 47 of the second inner cover 46.
Between them, a passage 49 is formed based on the concave portion 45. The passage 49 serves to pass the washing water jetted from the lower washing nozzle 41 and the rinse water jetted from the lower rinsing nozzle 42 when washing and rinsing the tableware 7 in the washing room R. Therefore, as is clear from FIG. 7, the washing water and the rinsing water enter the inside of the rear panel 2 through the passage 49, and then are poured into the turnbuckle 28, and thus adhere to the tableware 7. It is possible to prevent food residues from adhering to the turnbuckle 28. The recess 45 formed in the first inner cover 44 is provided with a lower cleaning nozzle 41 and a lower rinsing nozzle 42.
When rotating is performed, an operation for enabling the rotation is also performed. Further, the washing water and the rinsing water poured into the turnbuckle 28 are returned to the washing tank 43.

As described in detail above, in the dishwasher W according to the present embodiment, each plate attached to the horizontal portion 16A of the arm 16 rotatably disposed via the housing member 14 inside the opening / closing door 4. The spring 2 is connected to a shaft member 18 provided between the members 17 via a hook member 24.
5 locks the upper end, the lower end of the spring 25 and the locking plate 3
When the turnbuckle 28 is interposed between the first screw hole 33 and the second screw hole 34 by rotating the buckle member 32 of the turnbuckle 28 when adjusting the urging force of the spring 25. The first adjustment bolt 29 and the second adjustment bolt 30 are moved closer to or away from each other, and the second adjustment bolt 30 is
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 extended over a wider range. Can be adjusted.

At the lower end of the first adjusting bolt 29,
Since the retaining member 38 having a larger diameter than the first screw hole 33 of the buckle member 32 is fixed, even if the buckle member 32 is excessively rotated, the first adjustment bolt 29 is kept in the first screw hole 33 of the buckle member 32. Can be reliably prevented from falling off.

Further, a first inner cover 44 having a concave portion 45 corresponding to the position of the turnbuckle 28 is placed on the lower wall 40 above the back of the cleaning tank 43, and the first inner cover 44 is provided. The second inner cover 46 is disposed above the top 44 and the passage 49 is formed between the upper end 48 of the first inner cover 44 and the lower end 47 of the second inner cover 46. When washing, rinsing, the washing water injected from the lower washing nozzle 41, the rinsing water injected from the lower rinsing nozzle 42 will be poured into the turnbuckle 28 after passing through the passage 49, Thus, it is possible to prevent the food residue adhering to the tableware 7 from adhering to the turnbuckle 28.

It should be noted that the present invention is not limited to the above-described embodiment, and it is needless to say that various improvements and modifications can be made without departing from the gist of the present invention.

[0037]

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

[Brief description of the drawings]

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

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

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

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

FIG. 5 is a front view of the turnbuckle showing a state where the first adjustment bolt and the second adjustment bolt are separated from each other to the maximum extent.

FIG. 6 is a front view of the turnbuckle showing a state where the first adjustment bolt and the second adjustment bolt are brought close to each other as much as possible.

FIG. 7 is an enlarged cross-sectional view showing a configuration of a bottom portion and a back portion of the cleaning chamber with a part thereof omitted.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Cleaning machine main body, 2 ... Rear panel, 3 ... Guide rail, 4 ... Opening / closing 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 adjustment bolt, 30
Second adjusting bolt, 31 locking plate, 32 buckle member, 33 first screw hole, 34 second screw hole, 37 recess, 38 locking member, 41 lower washing nozzle, 42 lower rinse nozzle, 43 cleaning tank, 44 first inner cover, 45 recess, 46 second inner cover, 49 ·aisle,
W: dishwasher

Claims (5)

[Claims] 1. A dishwasher urging force adjusting device that adjusts an urging force of a spring that urges a door body disposed upward and downward in a main body of a washing machine upward, wherein the urging force adjusting device includes: A first adjustment bolt having one end locked to the lower end of the spring; a second adjustment bolt having one end locked to the main body of the washing machine; and the first adjustment bolt and the second adjustment bolt being connected. A buckle member that moves the other end of the first adjustment bolt and the other end of the second adjustment bolt toward and away from each other, and allows one of the first adjustment bolt and the second adjustment bolt to be fitted into the other; A biasing force adjusting device for a dishwasher, characterized in that: 2. A door body disposed so as to be able to ascend and descend along a guide rail erected on a main body of the cleaning machine and having an open bottom, a rear panel provided on a back surface of the main body of the cleaning machine, and the door. A first spring engagement portion attached to a body, a second spring engagement portion attached to the rear panel, and a door hooked between the first spring engagement portion and the second engagement portion; A spring for urging the body upward, a turnbuckle continuously connected to the spring, interposed between the lower end of the spring and the second spring engaging portion, and adjusting the urging force of the spring; A first adjustment bolt having one end locked to a lower end of a spring; a second adjustment bolt having one end locked to a second spring locking portion; 2 adjustment bolt, and the other end of the first adjustment bolt and the second A dishwasher, comprising: a buckle member that moves the other end of the adjustment bolt toward and away from the other end and allows one of the first adjustment bolt and the second adjustment bolt to be fitted into the other. 3. The buckle member has a first screw hole into which a first adjustment bolt is screwed, and a second screw hole into which a second adjustment bolt is screwed. The dishwasher according to claim 2, wherein a recess is formed in the inside of the dishwasher, and the second adjustment bolt is capable of moving forward and backward within the recess while being fitted into the recess. 4. A fixing device fixed to a lower end of the first adjusting bolt,
The dishwasher according to claim 3, further comprising a retaining member having a larger diameter than the first screw hole. 5. A cleaning tank provided in the cleaning machine main body, and disposed on one side of the cleaning tub on the rear panel side, and formed corresponding to a position where the turnbuckle is disposed. The dishwasher according to any one of claims 2 to 4, further comprising: a cover member having a passage through which washing water is passed to the turnbuckle when washing the tableware.