JPH044000B2 - - Google Patents

Description

[Detailed description of the invention] (b) Industrial application fields The present invention relates to a washing machine.

(B) Prior Art Conventionally, the operation section of a washing machine has been constructed by covering the bottom plate with an operation cover, and electrical components such as a timer have been screwed to this operation cover. For example, it is disclosed in Japanese Utility Model Publication No. 1983-40311 (D06F39/12).

(C) Problems to be Solved by the Invention In cases where electrical components are fixed to the operating cover as in the conventional example, the fixing portion or the cover itself may be damaged by the pressure when operating the electrical components. Furthermore, sink marks from the bosses for screwing appeared on the surface of the operation cover, detracting from its aesthetic appearance.

Furthermore, since the electrical components are fixed to the operation cover and then the operation cover is attached to the bottom plate, assembly efficiency is poor, and the lead wires of the electrical components are connected to the main body, making it difficult to repair or inspect. In addition, the operation cover cannot be completely removed, and in order to do so, it is necessary to remove the electrical components from the operation cover.

In view of these conventional problems, the present invention makes it possible to easily perform the work of attaching electrical parts to the operating section and the work of repairing and inspecting the washing machine.

(d) Means for solving the problems The present invention has an operating section made of synthetic resin on the upper part of the main body, consisting of a bottom plate and an operating cover that covers the bottom plate,
The washing machine houses electrical components such as a timer and a switch in the operating section, and the bottom plate has at least two pins protruding from the bottom plate, an insertion hole is provided in the electrical component, and the pins are inserted into the washing machine. Fit the hole, and
A rib is formed on the back surface of the operation cover to restrict movement of the electrical component at least in the vertical direction.

(e) Operation That is, the installation work of the electrical component is completed by fitting the insertion hole of the electrical component into the pin of the bottom plate and covering it with the operation cover. The movement of the electrical component in the vertical direction (the direction in which the insertion hole is removed from the pin) is restricted by ribs.

(f) Examples Embodiments of the present invention will be described based on the drawings.

In FIGS. 1 to 4, 1 indicates a two-tub washing machine, 2 is a machine frame, 3 and 4 are a washing tub and an outer dehydration tub integrally molded from synthetic resin, and the machine frame is It is installed in 2. 5 is a dehydration top lid. The depth dimension of the washing tub 3 is set to be approximately the same as that of the machine frame 2, while the depth dimension of the dehydration outer tub 4 is set to approximately 2/3 of the dimension of the machine frame 2. Tank 4
A horizontal flange portion 6 is formed at the rear of the flange. Reference numeral 7 denotes an overflow chamber formed by bulging out the rear corner of the washing tub 3 in the direction of the outer dehydration tank 4, in which an overflow pipe 8 is installed, and an overflow cover (not shown) is attached to the front. ing. Reference numeral 9 denotes a rotary blade installed inside the washing tub 3, and 10 denotes a dehydration tank installed inside the outer dehydration tank 4.

Reference numeral 11 denotes a water pouring box provided at the rear of the upper end of the washing tub 3 for pouring water into the washing tub 3, and is set to have the same depth dimension as the horizontal flange portion 6. The water filling box 11 includes an injection channel A11a to the washing tub 3 and an injection channel B11b to the dewatering tank 10.
The water injection destination is switched by a water injection switching mechanism 12, which will be described later. 13 is a water inlet provided at the bottom of the water inlet A11a.

Flanges 14 and 15 are horizontally extended from the open end of the upper surface of the water filling box 11, and are formed in a shape that fills the gap between the water filling box 11 and the washing tub 3, respectively. Cover the top surface.
Further, the flanges 14 and 15 each have screw fixing portions 14a and 15 for fixing to the upper end of the washing tub 3.
A is provided. That is, the flange 14,
15 blocks moisture rising from below. If a thin tongue piece 16 is provided around the periphery of the water filling box 11 and the flanges 14 and 15 as shown in FIG. 11, this moisture blocking effect will be perfect.

Now, on the horizontal flange portion 6, a pair of pins 17, 17 are provided at front and rear positions and project upwardly, and similarly, two pins 17, 17 are provided at a predetermined interval in the lateral direction.
Pairs of pins 18, 18 and 19, 19 are provided protrudingly. Each of the pins 17... has a large diameter portion 17.
a, 18a, 19a (lower part) and small diameter part 17b, 1
8b, 19b (upper part), and pin 1
7 and 17 are formed across the overflow chamber 7.

Reference numerals 20, 21, and 22 designate a washing timer, a power switch, and a dehydration timer (hereinafter collectively referred to as electrical components), each of which is formed with a mounting arm 23 extending in the front-rear direction. The mounting arm 23...
An insertion hole 24 is formed in each of the pins 17, and the diameter of the insertion hole 24 is equal to that of the large diameter portion 1 of the pin 17.
7a..., and larger than the diameter of the small diameter portion 17b.... That is, the respective insertion holes 24, 24 of the washing timer 20 are loosely fitted into the small diameter portions 17b, 17b of the pins 17, 17, and the power switch 2
The insertion holes 24, 24 of the dehydration timer 22 are loosely fitted into the small diameter portions 18b, 18b of the pins 18, 18, and the insertion holes 24, 24 of the dehydration timer 22 are loosely fitted into the
It loosely fits into the small diameter portions 19b, 19b of No.9. Reference numeral 25 denotes a group of lead wires for the electrical components, which are connected to a drive motor circuit (not shown).

Reference numeral 26 denotes an operation cover with an opening on the bottom surface, which is placed on the rear upper part of the machine frame 2 so as to cover the horizontal flange portion 6 and the water injection box 11, and constitutes an operation section 27. When attached to the operation cover 26, the washing timer 20 and the dehydration timer 22 are installed.
Each timer axis 20a, 22a and power switch 2
Through holes 28 through which push buttons 21a and 21b of 1 are inserted
31 is opened, and each through hole 28 to 31
An inverted L-shaped rib 32 is integrally provided around the . The ribs 32... are the operation cover 26.
Simultaneously with the installation, each electrical component is positioned at a predetermined position by coming into contact with the main body of each of the electrical components 20, 21, and 22 and restricting the movement of each electrical component in the vertical and horizontal directions. Numerals 33 and 34 are knobs attached to the timer shafts 20a and 22a, respectively.

A water injection switching mechanism 12 is provided inside the operating section 27 on the side of the washing tub 3, and this will be explained below based on FIGS. 6 to 10.

A joint pipe 35 is integrally formed with the operation cover 26, and a water supply hose 37 from a water supply source is connected to a water inlet end 36a. The upper surface of the water filling box 11 is covered with a cover 38.
Water conduits 38a and 38b for guiding the supply water to the water injection channel A11a or the water injection channel B11b are integrally formed therein. 39 is a partition plate that partitions the water injection channel A11a and the water injection channel B11b.

Reference numeral 40 indicates the water conduit 3 by means of a container-shaped support portion 41.
8a, 38b, the water inlet end 36b of the joint pipe 36 is rotatably fitted to the water inlet side 40a, and the water outlet side 40b is bent forward. . Therefore, by rotating the water injection pipe 40, the water injection destination is switched to the water injection channel A11a or the water injection channel B11b. Reference numeral 42 denotes a stepped portion provided on the joint pipe 36 to restrict the downward movement of the joint pipe 36 into the water injection pipe 40 .

The joint pipe 36 has a water inlet end 36a.
An outer cylinder 43 is integrally formed to surround the outer cylinder 43, and an annular rib 44 is vertically provided from the outer bottom surface of the outer cylinder 43 into the support part 41.
The outer circumferential surface of the supporting portion 41 is close to the inner circumferential surface of the support portion 41 . Reference numeral 45 denotes an opening for draining water provided on the bottom surface of the outer cylinder 43.

46 is a drain hole provided at the bottom of the support part 41 for allowing water in the support part 41 to fall onto the water outlet side 40b of the water injection pipe 40;
A water drain passage 48 is formed by connecting both sides of the water drain hole 46 and the water injection pipe 40 with ribs 47, 47.

49... are engagement protrusions formed on the upper end of the support portion 41, while 50 are engagement protrusions 49...
It is an operating lever having a feed dog 51 that meshes with... An operating knob 52 of the operating lever 50 is slidably supported by the operating cover 26, and by sliding the operating knob 52, the operating lever 50 moves and the support portion 41 is rotated.

In the water supply operation, the operation knob 52 is slid to direct the water outlet side 40b of the water injection pipe 40 toward a desired water injection destination, and then water is supplied. At this time, if the water supply pressure is too strong, water may flow backwards and leak from the connection part 53 between the joint pipe 36 and the water injection pipe 40 as shown by the arrow in FIG. It is guided by the portion 42 and the annular rib 44, is accommodated in the support portion 41 without jumping upward from the opening 45, and falls into the drain passage 48 from the drain hole 46. Then, the water is guided by this drain passage 48 and discharged to the set water injection destination. That is, for example, when water is being injected into the dehydration tank 10 side, the water that leaks out due to the water supply pressure being too high will always be discharged to the dehydration tank 10 side, and the water will leak out to a side other than the water injection destination and cause damage to the user. does not arouse any sense of distrust.

With the above configuration, the washing machine of this embodiment has the following effects.

(a) There is no need to use screws or the like to attach the electrical components 20, 21, 22, and the ribs 32... can be easily integrally molded to the operation cover 26, so assembly work is easy and the cost is low. be.

(b) Since the electrical components 20, 21, and 22 are supported by the horizontal flange portion 6, which is strong in strength, the structure can sufficiently withstand pressure during operation.

(c) Pins 17, 17 are installed across the overflow chamber 7,
Since the structure is such that the washing timer 20 is installed,
It is possible to restrict the expansion of the overflow chamber 7 due to water pressure.

(d) The member that should originally serve as the bottom plate of the operating section 27 is omitted, and the horizontal flange section 6 and the water filling box 11 (flanges 14, 15) are used for the same purpose.
Costs can be reduced accordingly.

(e) The flanges 14 and 15 provided on the water filling box 11 prevent moisture from entering into the operating section 27, thereby preventing failure of electrical components due to moisture.

(G) Effects of the Invention The washing machine of the present invention is easy to assemble because the installation work of the electrical parts is completed by fitting the insertion holes for the electrical parts into the pins of the bottom plate and covering them with the operation cover. Furthermore, by supporting the electrical components on the bottom plate, the operation cover and the bottom plate can be easily separated when repairing or inspecting the inside of the operating section, making the work easier.

[Brief explanation of drawings]

Fig. 1 is a perspective view of the washing machine of the present invention, Fig. 2 is a plan view of the washing tub and the outer dehydration tank, Fig. 3 is an exploded perspective view of the operating section, and Fig. 4 is an overview showing the internal mechanism of the washing machine. FIG. 5 is a perspective view of the water injection box, FIG. 6 is an exploded perspective view of the water injection switching mechanism, and FIG. 7 is a sectional view of the main parts.
Fig. 8 is a plan view of the water injection pipe, Fig. 9 is a sectional view of the same side, Fig. 10 is a plan view of the joint pipe, and Fig. 11 is a sectional view of the operating section of a washing machine using another type of water injection box. It is. 6...Horizontal flange part (bottom plate), 17, 18,
19... Pin, 20, 21, 22... Electrical parts,
24...Insertion hole, 26...Operation cover, 27...
Operation section.

Claims (1)

[Scope of Claims] 1. An operating section made of synthetic resin consisting of a bottom plate and an operating cover covering the bottom plate is provided on the upper part of the main body, and electrical components such as a timer and a switch are housed within the operating section. At least two pins are provided protrudingly on the bottom plate, and an insertion hole is provided in the electrical component,
A washing machine characterized in that the pin is fitted into the insertion hole, and further a rib is formed on the back surface of the operation cover to restrict movement of the electrical component at least in a vertical direction. 2. The washing machine according to claim 1, wherein the pin and the insertion hole are loosely fitted.