JPS5938237Y2 - Operation box for washing machines, etc. - Google Patents

Description

[Detailed description of the invention] The present invention is an operation box for a washing machine, etc., in which the main body of the control box, which consists of a bottom wall, a rear wall, and both side walls, is manufactured by integral molding of plastic, and the upper surface of the main body of the control box is closed with a panel. Regarding.

Conventionally, the operation box of a washing machine has a main body 1 of the operation box, which has an open upper surface and consists of a bottom wall 2, a rear wall 3, and a side wall 4, covered with the upper surface of an outer box M, as shown in FIGS. 1 and 2. It is provided by integral molding of plastic at the rear part of the lid 5 that has been attached, and a stepped part 6 as a panel mounting part for mounting the panel P is provided on the upper edge of the side wall 4. has a hollow shape with an open bottom surface, and an opening 7 that opens into the operation box main body 1 is provided in a part of the inner surface plate 4a of the side wall 4, and the opening 7 is separately provided as a plastic closing plate. 8 is closed by gluing.

The mold 9 for integrally molding the operation box main body 1 from plastic has a cross section taken along the line 1--n in FIG. 1 as shown in FIG. 3.

That is, the upper mold 10 is provided with a recess 11 and the lower mold 12 is provided with a relatively narrow protrusion 13, which corresponds to the opening 7 when the upper mold 10 and the lower mold 12 are matched. One side surface 11a of the concave portion 11 and one side surface 13a of the convex portion 13 are in contact with each other to prevent the convex portion 13 from collapsing due to the molding pressure acting as shown by arrow A during molding.

However, according to such a conventional configuration, since the relatively narrow convex portion 13 does not fall down, the operation box main body 1 can be formed well, but an opening 7 is inevitably formed, and the opening 7 is If it is not blocked, steam or moisture will enter the main body 1 of the operation box from the opening 7 when hot water is used for washing, damaging the electrical components inside, so a separate blocking plate 8 is provided. It is necessary to close the opening 7 by attaching it with adhesive or the like, which makes the assembly work troublesome and increases the cost, and also causes problems such as the closing plate 8 falling off due to poor adhesion.

The present invention was developed in view of the above circumstances, and its purpose is not only to prevent the convex part of the mold from collapsing and to perform good molding, but also to prevent the convex part of the mold from collapsing, and also to prevent the convex part of the mold from collapsing. To provide an operating box for a washing machine, etc., which can prevent moisture from entering, can be easily assembled and manufactured at low cost, and does not cause problems such as a closing plate falling off due to poor adhesion.

A first embodiment in which the present invention is applied to a dehydrating and washing machine will be described below with reference to FIGS. 4 to 8.

14 is an outer box, 15 is a water tank elastically suspended in the outer box 14, 16 is a rotating tank disposed inside the water tank 15 and serves as a washing tub and dewatering tank, and 17 is a water tank of the outer box 14. It is a plastic lid attached to the top surface.

An opening 18 for putting in and taking out laundry, which communicates with the rotary tub 16, is formed in the center of the lid 17, and an operation box main body 19 with an open upper surface is integrally provided in the rear part.

Now, the operation box main body 19 will be explained in detail below.

Namely, 20 is a bottom wall, 21 is a rear wall having a concave portion 22 for storing a hose on the back side, 23 is a front wall having a plurality of engaging convex portions 24 at the upper end, and 25 is a left and right side of the operation box main body 19. These are side walls provided on both sides, and these are the bottom wall 20, the rear wall 21,
The main body 19 of the operation box is constructed by integrally molding the front wall 23 and the side walls 25 from plastic.

On the other hand, the side wall 25 is provided with a hollow portion 26 whose lower surface is open, and a stepped portion 27 serving as a panel mounting portion is provided at the upper edge.

The side wall 25 is provided with a bulging portion 28 that bulges inward of the operation box main body 19 in the rear half of the inner surface side.
An opening 29 communicating with the hollow portion 26 is provided on the upper surface of the holder.

The mold 30 for molding the main body 19 of the operation box has an engaging recess 33 in the recess 32 of the upper mold 31, as shown in FIG. An engagement convex portion 36 that fits into the engagement recess 33 is provided in the convex portion 35 of the step portion 27 .
is opposed to the base end portion of the engagement convex portion 36.

During molding, the protrusion 35 of the lower die 34 is formed by the engagement protrusion 36 fitting into the engagement recess 33.
The convex portion 35 is reliably prevented from collapsing due to the molding pressure acting in the direction of arrow B or arrow C.

37 is a panel attached to the upper surface of the operation box main body 19;
Inwardly directed ribs 3 on both left and right edges and lower edge of this
7a and 37b are provided protrudingly (only the left edge and lower edge are shown).

37c is a rib provided on the panel 37 so as to be parallel to the rib 37a at a predetermined distance, 37b and 37e are ribs protruding from the panel 37 to connect the ribs 37a and 37c, and 37f is a rib provided on the rib 37b. This is a fitting hole that protrudes so as to face the engaging convex portion 24 .

Then, the fitting hole 37f is fitted into the engaging convex portion 24, and the rib 3
When the panel 37 is attached to the upper surface of the operation box main body 19 by bringing the tips of the ribs 7a and 37c into contact with the stepped portion 27, the tips of the ribs 37a, 37c, 37d, and 37e touch the periphery of the opening 29. (See Figures 6 and 8).

According to this embodiment configured in this way, when the panel 37 is attached to the top surface of the main body of the operation box, the rib 37a.

37c, 37d, and 37e can close the opening 29 and prevent moisture from entering the operation box main body 19 from the hollow part 26, so there is no need for a separate closing plate as in the conventional case, and Due to the engagement between the engaging concave portion 33 and the engaging convex portion 36, the convex portion 35 of the lower mold 34 does not fall even when subjected to molding pressure during molding, so the lid body 17 having the operation box main body 19 can be integrally molded in a good manner. can.

Further, in this embodiment, the panel 37 has ribs 37a to 37e.
Since the ribs 37a to 37d are provided, the panel 37 is reinforced and its strength is improved.
a, 37c, 37d.

The tip of the step 37e is pressed against the stepped portion 27, making it difficult to form a gap, thereby reliably preventing moisture from entering the main body 19 of the operation box.

A step 27 is provided on the upper edge of the side wall 25, and the step 27
Since 7 is used as a panel mounting part, when the panel 37 is installed, the panel 37 is positioned by the stepped part 27, making assembly easier. Also, the periphery of the panel 37 is flush with the upper end of the side wall 25, which improves the design. It also has the effect of easily achieving improvement in sexual performance.

FIG. 9 shows the second embodiment of the present invention, and shows the sixth embodiment.
Only the parts that differ from the figures will be explained.

That is, 38 is an opening provided in the upper part of the bulging part 28 in place of the opening 29, and specifically, it extends from the step part 27 which is the upper surface of the bulging part 28 to the side plate 28a of the bulging part 28. It is formed like this.

On the other hand, 39 is a rib provided on the panel 37 instead of the rib 37c, and when the panel 37 is attached to the operation box main body 19, this rib 39 comes into contact with the inner surface side of the side plate 28a, and the opening 38
ribs 37a, 37d, 37
Each tip of the opening 38 is configured to abut against the peripheral edge of the opening 38 to close the opening 38 in the same manner as in the first embodiment described above, and the same effect as in the first embodiment described above can be obtained. Of course, the panel 37 is also reinforced by the ribs 37a, 37b, 37d, 37e, and 39, which has the effect of increasing its strength.

FIG. 10 shows a third embodiment of the present invention, and parts different from FIG. 6 will be explained.

That is, the side wall 25 is provided with a step portion 40 serving as a panel mounting portion having a smaller step than the step portion 27 of the first embodiment.
0 is provided with an opening 41 similar to the opening 29, and the stepped portion 40
A panel 42 having no ribs is brought into direct contact with the upper part of the panel 42 to close the opening 41, and the same effect as in the first embodiment can be obtained. Since the panel 42 is brought into direct pressure contact with the panel 40, it is difficult to form a gap and it is possible to reliably prevent moisture from entering the operation box main body 19.

It goes without saying that the present invention can be applied not only to dehydrating and washing machines but also to ordinary washing machines and other dishwashers.

As is clear from the above description, the present invention not only prevents the convex part of the mold from collapsing and forms a good bottom shape, but also prevents moisture from entering the main body of the operation box without the need for a separate blocking plate. It is possible to provide an operating box for a washing machine, etc., which can be easily assembled and manufactured at low cost, and which does not cause problems such as the closing plate falling off due to poor adhesion.

[Brief explanation of the drawing]

Figures 1 to 3 show the conventional structure, with Figure 1 being a partially exploded perspective view, Figure 2 being a sectional view taken along the line ■-■ in Figure 1, and Figure 3 showing the molded structure. The vertical cross-sectional views of the mold, FIGS. 4 to 8, show a first embodiment in which the present invention is applied to a dehydrating and washing machine. FIG. 4 is a partially cutaway side view, and FIG. The figure is an enlarged exploded perspective view of the main parts, and Figure 6 is the V of Figure 5.
7 is a sectional view of the mold corresponding to FIG. 6, and FIG. 8 is an enlarged sectional view taken along the line ■-■ in FIG. 6; 9 is a view corresponding to FIG. 6 showing a second embodiment of the present invention, and FIG. 10 is a view corresponding to FIG. 6 showing a third embodiment of the present invention. In the drawing, 17 is a lid body, 18 is an opening, 19 is an operation box main body, 20 is a bottom wall, 21 is a rear wall, 25 is a side wall, 26 is a hollow part, 27 is a step part (panel mounting part), 29 30 is an opening, 30 is a mold, 33 is an engaging recess, 36 is an engaging protrusion, 37 is a panel, 37a to 37e are ribs, 38 is an opening, 39 is a rib, 40 is a step (panel mounting part) ), 41 is an opening, 42
is a panel.

Claims (1)

[Scope of utility model registration request] 1. An operation box main body is provided by integrally molding plastic with both side walls having a bottom wall, a rear wall, and a panel mounting section on the upper edge, and the upper surface of this operation box main body is placed on the panel mounting section. A washing machine, etc., which is closed by a panel, characterized in that the side wall is formed in a hollow shape with an open bottom surface, an opening is provided in the upper part of the side wall, and the opening is closed by the panel. operation box. (2) The operation box for a washing machine or the like as set forth in claim 1, wherein the opening in the side wall is formed in the panel mounting portion. 3. The operating box for a washing machine or the like according to claim 2, wherein the panel mounting portion is a stepped portion formed on the upper edge of the side wall.