JPH0543740Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to a water leakage prevention structure for a dishwasher.

(Prior art) A commercial dishwasher has a built-in pump or the like in the base, and is equipped with a spray nozzle that sprays pressurized water, etc. onto the top surface of the base.The tableware is placed above the spray nozzle, and the lid is closed. The jet nozzle sprays pressurized water or the like to create a jet stream, and the jet stream is sprayed onto tableware for cleaning. Since such a dishwasher has a large lid, a structure as shown in FIG. 8 has been used to open and close the lid. That is, the front plate 21 is placed on the base 20.
a, a lid 21 composed of a top plate 21b and both side plates 21c is provided, a support 22 for guiding the lid 21 in the vertical direction is erected on a base 20, and the lid has a fulcrum on the support 22; An arm handle 23 for opening and closing the arm part 23 of the arm handle 23 is provided.
A link 24 is rotatably attached to the link 24, and the other end of the link 24 is attached to both side plates 21c of the lid part 21.
The structure is such that when the arm handle 23 is lifted, a link 24 attached to the arm portion 23a lifts the lid portion 21 along the support column.

However, in the structure of the conventional dishwasher described above, the arm handle 23 for opening and closing the lid 21 protrudes from the front and side sides of the dishwasher, which not only spoils the appearance of the dishwasher, but also When a plurality of dishwashers are used side by side, a large space must be provided around the installation floor area.

Therefore, in recent years, in order to place the arm portion 23a of the arm handle 23 inside the lid portion 21, a structure as shown in FIG. 9 has been developed. That is, the base 25 is provided with a washing section on the top surface of which dishes are placed and washed.
, a column 26 erected on both rear sides of the base 25, a back plate 27 provided between the columns 26 and fixed to the base 25 on the lower side, and a base plate 27 guided by the column 26. a front plate 28a that moves up and down on 25;
A lid part 28 formed in a box shape with a top plate 28b and both side plates 28c, a window part 29 made of glass or the like provided on the front plate of the lid part 28, and a front plate 28a provided below this window part 29. As shown in FIG. 10, a handle part 30 along both side plates 28c, a fixing base 31 for fixing this handle part 30 to both side plates 28c,
a second arm 32 whose one end is rotatably supported inside the lid part 28 on the back side of the fixed base 31;
A support shaft portion 33a that rotatably supports the other end of the second arm 32 is provided at the tip thereof, and a backrest that extends along the inside of the lid portion 28 and is fixed to the base 25. A first arm 33 protruding from the notch 27a of the face plate 27 and connected to each other and having a substantially U-shape, and a support portion 34 that rotatably supports the first arm 33 on the pillar 26 on both sides. , a hook portion 35 provided on a connecting portion 33b protruding from the back plate 27 of the first arm 33 and connected to each other; and a coil spring 3 stretched between the hook portion 35 and the base 25.
It was composed of 6.

(Problem to be solved by the invention) In the structure of the conventional dishwasher described above, the lid part 2
Even when cleaning is performed with back plate 8 closed,
In some cases, the jet flow from the injection nozzle was ejected from the gap between the notch 27a provided in the injection nozzle 7 and the first arm 33. Further, when the lid part 28 is opened after cleaning, the first arm 33 tilts backward, which causes the moisture attached to the first arm 33 to flow to the back side of the back plate 27.

The present invention was made in view of the above-mentioned circumstances, and its purpose is to prevent water from leaking out of the dishwasher during and after washing, even if the first arm is provided inside the lid of the dishwasher. The present invention aims to provide a water leakage prevention structure for the washer.

(Means for Solving the Problems) In order to achieve the above object, the water leakage prevention structure of the dishwasher of the present invention includes a base having a washing section on the top surface of which dishes are placed and washed; It consists of pillars erected on both sides of the rear of the base, a back plate fixed to the base between the pillars, and a front plate, top plate, and both side plates that move up and down on the base guided by the pillars. A lid part formed in a box shape, and a connecting part provided inside the lid part along both side plates of the lid part and partially protruding outward from the back plate to form a substantially U-shape. A first arm is formed, a holding part is provided on the pillar and rotatably holds the first arm, and one end of the first arm is rotatably attached to the tips of two parallel sides of the first arm. The second end is rotatably connected to both side plates of the lid part.
arm, and a coil spring tensioned at a connecting portion between the base and the first arm on the back side of the base, and the tableware is placed on the washing section on the base and the lid section is covered. In a dishwasher that washes dishes with a jet stream, the holding part provided on the support and holding the first arm has a part that covers the holding part to prevent the jet stream from entering due to washing and reaches the back plate. A waterproof case in the form of a housing is provided, and an elongated hole passing through the first arm is provided on the front side of the waterproof case, and
A shutter is provided to follow the vertical movement of the first arm to open and close the elongated hole portion, and a flange portion is provided in the holding portion to shut off moisture adhering to the first arm due to washing. This prevents leakage.

(Function) In the water leak prevention structure of the dishwasher configured as described above, the first arm is tilted to the front side during washing, so the shutter of the waterproof casing provided on the support is closed. This completely prevents the intrusion of jets caused by cleaning. In addition, when the lid is opened after cleaning, the first arm tilts backward, but the flange provided on the holder that holds the first arm prevents moisture adhering to the first arm. It can prevent water leakage by blocking the water.

(Example) Hereinafter, an example of the present invention will be described in detail with reference to FIGS. 1 to 7. Fig. 1 is a partially sectional side view of the dishwasher, Fig. 2 is a partially sectional side view when the lid of the dishwasher is open, and Fig. 3 is a partial sectional side view of the dishwasher. Figure 4 is an exploded perspective view of the waterproof casing, Figure 5 is a sectional view of the main parts showing the water leak prevention structure during cleaning, and Figure 6 is the main parts showing the water leak prevention structure after cleaning. The sectional view, FIG. 7, is a rear view of the automatic dishwasher.

In FIG. 1, 1 is a dishwasher. This dishwasher 1 includes a base 2 and a lid 3 provided on the base 2. The base 2 has built-in components necessary for cleaning, such as a pump, an injection nozzle, and a timer. The upper surface 2a of this base 2 is formed with a washing section on which tableware and the like are placed and washed, and columns 4 are erected on both rear side surfaces of this upper surface 2a. The support column 4 is provided with a guide section (not shown), which guides the vertical movement of the lid section 3 placed over the top surface 2a of the base 2.
Between these pillars 4 is a back plate 5 fixed to the base 2.
A notch hole 5a having a vertically long notch is provided at the upper end of the back plate 5 adjacent to the support column 4. The lid 3 provided on the base 2 is composed of a front plate 3a, a top plate 3b, and both side plates 3c, and a window 3d made of glass or the like is provided on the front plate 3a so that the inside of the lid 3 can be viewed directly. . A handle 6 is provided below the window 3d of the lid 3. This handle 6 is formed to be slightly longer than the width direction of the front plate 3a, and its both ends 6a are bent toward the lid 3 and attached to both side plates 3c via fixing bases 6b. A support shaft 6c projects inside the lid 3 on the back side of the fixed base 6b, and the support shaft 6c has a mounting hole 7a at one end, and a second arm 7 of a predetermined length rotates. An engagement hole 7b is provided at the other end of the second arm 7 to be rotatably attached to a first arm 8, which will be described later.

The first arm 8 is a round bar bent into a substantially U-shape as shown in FIG. The connecting portion 8b is formed by the connecting portion 8b. Support shafts 9 are provided at both ends of the arm portion 8a to slide into the engagement holes 7b of the second arm 7.
An arm holding portion 13, which will be described later, is provided on the connecting portion 8b side of the arm portion 8a, and a locking tool 10, which will be described later, is provided on the connecting portion 8b of the first arm 8. The arm holding portion 13 includes a cylindrical main body portion 13a that fits into the arm portion 8a of the first arm 8;
It consists of a boss portion 13b that is formed integrally with the main body portion 13a and projects from the main body portion to one side, and slots are provided in the longitudinal direction of the boss portion 13b and the main body portion 13a. The boss portion 13b is provided with a screw for tightening the main body portion 13a, so that the boss portion 13b can be fastened and fixed to the first arm 8 with the screw. Further, the boss portion 13
b is provided with a mounting hole 13c that passes through a shaft that rotatably supports the first arm 8. A main body portion 13a is provided on one end surface of the arm holding portion 13.
A flange 14 having a protruding shape is provided around the periphery of the flange.
When attaching the arm holding part 13 to the first arm 8, this collar part 14 is arranged so as to be closer to the arm connecting part 8b, and the boss part 13b and the arm part 8
It is attached to one end side of a.

The first arm 8 having such a configuration is inserted through the cut hole 5a side of the back plate 5 provided on the support 4, and the arm holding portion 13 is inserted into a waterproof casing 17 (described later) provided on the support 4. As shown in FIG. 1, the engagement hole 7b of the second arm 7 is slidably fitted to the support shaft 9 of the first arm 8. On the other hand, the locking tool 10 provided on the connecting portion 8b of the first arm 8 includes two flat plates 10b having locking holes 10a that engage with the connecting portion 8b,
A hook shaft 10c is provided between the flat plates 10b in parallel to the connecting portion 8b, and the hook shaft 10c is located above the connecting portion 8b with the tip side of the first arm 8 at its lowest point. The camera is fixed in a position slightly tilted forward (see Figure 3). As shown in FIG. 1, a coil spring 11 is attached to the hook shaft 10c via a chain 11a, and the lower end of the coil spring 11 is fixed to a fixture 12 provided on the base 2. The first
The connecting portion 8b of the arm 8 is urged downward. The chain 11a is used to adjust the strength of the coil spring 11, and can be replaced with the hook shaft 10c. Further, the protruding portion surrounding the coil spring 11 on the rear side of the base 2 is a wall portion 2b.

With the above configuration, when the handle 6 is pulled upward, the second arm pushes up the first arm 8, as shown in FIG. The waterproof housing 17 rotates as a fulcrum. At this time, the lid part 3 is guided by the support column 4 and opened onto the base 2 by the urging force of the coil spring 11 via the locking tool 10 provided on the connecting part 8b of the first arm 8. It's summery. In the above structure, as shown in FIG. 4, the waterproof casing 17 is a vertically long casing, and a front part 17a is provided with a longitudinal long hole 15, and the first The arm portion 8a of the arm 8 is inserted. A large opening (not shown) is provided in the rear part corresponding to the front part 17a, and this rear part is fixed to the inside of the back plate 5 provided between the pillars 4. It is attached so as to cover the notch 5a through which the provided first arm is inserted.
Further, a shaft hole 17c is provided in both side parts 17b, and the arm holding part 13 provided on the first arm 8 is rotatably supported between both side parts 17b.
This shaft hole 17c and the mounting hole 13 of the arm holding part 13
The same shaft that is attached to the support column 4 is inserted into c. A discharge hole 17d is provided on the lower surface side of the waterproof housing 17 to discharge moisture that has entered the housing. On the front side of the front face part 17a of such a waterproof casing 17, there is a notch 16 that is slightly smaller in width than the front face part 17a and has a cutout part 16 on the lower end side that is substantially the same as the elongated hole 15.
A shutter 16 is attached, and this shutter 16 is configured to open and close the elongated hole 15 of the waterproof housing 17 by a front cover 18 attached to the front part 17a of the waterproof housing 17 so as to wrap around the shutter 16. ing. A waterproof case 17 like this is attached to the support 4.
By attaching the arm holding part 13 provided on the first arm 8 to the support column 4 via the prevention housing 17 so as to be rotatable, the shutter 16 can be opened and closed by vertical movement of the first arm 8. It is becoming more and more common.

Hereinafter, the waterproof housing 17, the arm holding part 13, and the water leak prevention operation will be explained with reference to FIGS. 5 and 6. FIG. 5 shows the state of the first arm 8 with the lid part 3 placed on the base 2, and is in the state of being washed. In this state, the first arm 8 is in a state of forward downward movement (downward to the left in the figure), and the shutter 16 provided in the waterproof casing 17 is downward to the elongated hole 1.
It acts to almost seal 5. Therefore,
The jet stream (arrow line in the figure) during cleaning does not enter the waterproof casing 17. Even if a portion of the water enters through the gap between the first arm 8 and the shutter 16, none reaches the back plate 5, and leakage from the notch 5a is prevented. Furthermore, water that has entered the waterproof casing 17 falls into the lid 3 through the drainage hole 17d. The above-mentioned cleaning is performed by a preset timer, and when the handle 6 is pulled upward after confirming that the jet has stopped after the set time, the second arm 7 is moved to the first arm 8.
is pushed upward, and the lid part 3 is pulled up directly above the base 2 by the urging force of the coil spring 11 via the locking tool 10 of the arm connecting part 8b provided on the first arm 8. At this time, as shown in FIG. 6, the waterproof casing 17 is opened by the first arm 8, and the moisture adhering to the first arm 8 is removed from the flange 14 provided on the arm holding part 13. As a result, it falls into the waterproof casing 17 and is prevented from leaking to the arm connecting portion 8b. The water dripping into the waterproof casing 17 flows to the upper surface of the base 2 through the drainage hole 17d.

As described above, the dishwasher 1 of the present invention uses the shutter 16 provided on the waterproof casing 17 and the flange 14 provided on the arm holder 13 to prevent moisture from washing during or after washing. Water leakage outside the vessel was completely prevented.

Although the above description assumes that the dishwasher 1 is manually operated, as shown in FIG.
For example, even if the lid opening/closing device 19 formed by a cylinder and a piston is provided and the piston rod 19a is engaged with the arm connecting portion 8b of the first arm 8 to automate the operation, the effects of the present invention are the same. .

(Effects of the invention) As explained in detail above, the present invention includes a base provided with a washing section on the top surface of which tableware is placed and washed;
It consists of pillars erected on both sides of the rear of the base, a back plate fixed to the base between these pillars, and a front plate, top plate, and both side plates that move up and down on the base guided by the pillars. A lid portion formed in a box shape, and a lid portion provided inside the lid portion along both side plates of the lid portion,
A portion of the connecting portion protrudes outward from the back plate and is connected to the first arm, which is formed in a substantially U-shape, and the first arm provided on the pillar and rotatably holds the first arm. a second holding part, one end of which is rotatably attached to the tips of two parallel sides of the first arm, and the other end of which is rotatably connected to both side plates of the lid part. an arm, and a coil spring tensioned on the back side of the base to a connecting portion between the base and the first arm, and the tableware is placed on the washing section on the base, the lid section is covered, and the jet stream is applied. In a dishwasher for washing dishes by a first
The holding part that holds the arm is provided with a waterproof casing that covers the holding part and reaches the back plate to prevent the intrusion of jets due to cleaning. A shutter is provided to open and close the elongated hole according to the vertical movement of the first arm, and a shutter is provided in the holding part to block moisture that has adhered to the first arm due to cleaning. Since the flange is provided, there is an advantage that water leakage from the dishwasher can be completely prevented. This makes it possible to maintain a good aesthetic appearance in the kitchen, which has traditionally been viewed as unclean due to water leakage onto the floor.

[Brief explanation of the drawing]

Figures 1 to 7 show embodiments of the present invention, with Figure 1 being a partially sectional side view of the dishwasher, and Figure 2 being a side view of the dishwasher with the lid open. 3 is a perspective view of the first and second arms of the dishwasher, FIG. 4 is an exploded perspective view of the waterproof casing, and FIG. 5 is a main part showing the structure to prevent water leakage during washing. A cross-sectional view, Figure 6 is a cross-sectional view of the main part showing the water leakage prevention structure after cleaning, Figure 7 is a rear view of the automatic dishwasher,
FIGS. 8 to 10 are explanatory diagrams of conventional examples. 1... Dishwasher, 2... Base, 3... Lid,
4... Support column, 5... Back plate, 8... First arm, 13... Arm holding part, 14... Flange part, 16
...Shutter, 17...Waterproof casing.

Claims (1)

[Scope of utility model registration request] A base provided with a washing section on the top surface of which tableware is placed and washed, pillars erected on both rear sides of the base, a back plate fixed to the base between the pillars, and the pillars. The lid part is formed into a box shape with a front plate, a top plate, and both side plates that move up and down on the base while being guided by the lid. a first arm formed in a substantially U-shape and provided with a connecting portion that projects outward and is connected; a holding portion that is provided on the pillar and rotatably holds the first arm; a second arm whose one end is rotatably attached to the tips of two parallel sides of the first arm and whose other end is rotatably connected to both side plates of the lid; and the base. a coil spring tensioned between the base and the connection part of the first arm on the back side of the holder, the tableware is placed on the washing part on the base, the lid part is covered, and the tableware is washed by the jet stream. In the dishwasher, the holding part provided on the support and holding the first arm includes:
A housing-like waterproof casing is provided to cover the holding part and reach the back plate in order to prevent the infiltration of jets due to cleaning, and the front side of this waterproof casing is provided with a long notch that passes through the first arm. The tableware is characterized in that a shutter is provided to open and close the elongated part following the vertical movement of the first arm, and the holding part is provided with a flange part for blocking moisture adhering to the first arm during washing. Water leakage prevention structure for the washer.