JPH04236986A - Drum type washing machine - Google Patents

Abstract

PURPOSE:To increase a vibration absorption property of an outer tank by a bellows-like rubber packing connecting the outer tank with a frame, and reducing occurrence of an abnormal sound by the rubber packing in absorbing vibration. CONSTITUTION:For a drum type washing machine, an outer tank resiliently sported in a frame and a clothing charging port in the upper surface of the frame are connected with each other by a rubber packing 13 having a V-letter shaped sectional surface, the thickness of a crest part 18 of the rubber packing 13 is set thicker than that of the other parts, and a plural ribs 19 are formed integrally to be perpendicular to the crest parts 18 in addition. The strength of the crest parts 18 is increased by this, the rubber packing 13 is less likely to be inverted if the outer tank is vibrated, and the thickness of the other parts than the crest parts 18 can be made thin to the utmost.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drum type washing machine.

0002

2. Description of the Related Art As a conventional example, a frame, a water tank elastically supported within the frame, a clothing inlet provided on the upper surface of the frame and an upper part of the water tank, and each of the clothing input ports are provided. A drum-type washing machine equipped with a bellows-shaped connecting member that connects the spout in a watertight manner is disclosed in Japanese Patent Application Laid-Open No. 2-25294 (D06F33/02).

0003

[Problems to be Solved by the Invention] In the conventional example, if the material of the connecting member is hard, the vibration of the water tank will be transmitted directly to the upper surface of the frame, causing the frame to rattle. It is necessary to use something as soft as possible.

On the other hand, when the connecting member is made soft in this way, as the water receiving tank vibrates up and down as shown in FIG. In this regard, it may cause noise.
It was difficult to select the material for the connecting parts.

[0005] The present invention relates to an improvement of a drum type washing machine.
This problem is solved.

[0006]

[Means for Solving the Problems] The drum-type washing machine of the present invention includes a water tank elastically supported within a frame, and a clothes loading tank provided on the top surface of the frame and the top of the water tank, respectively. and a bellows-shaped connecting member that connects each input port in a watertight manner, and the connecting member has a thickness at a peak or valley that is thicker than other parts, and A plurality of perpendicular vertical ribs are integrally formed.

[0007] The connecting member may have a V-shaped cross section, a W-shaped cross section, a U-shaped cross section, or any other type that can expand and contract in a bellows shape.

[0008]

[Operation] By making the thickness of the crest or trough in the connecting member thicker than other parts and by integrally forming a plurality of vertical ribs that are perpendicular to the crest or trough, the crest or trough can be Even if the strength of the water tank increases and the water tank vibrates, Figure 1
In addition to not inverting like 0, the thickness of parts other than the peaks and valleys can be made as thin as possible.

[0009]

Embodiments Examples of the present invention will be explained based on the drawings. 1 is a frame made of sheet metal, 2 is an outer tank made of synthetic resin and formed in the shape of a horizontal drum, 3 is a base made of synthetic resin that supports the lower part of the frame 1, and 4 is the outer tank 2. The frame
4 for elastic suspension support from the upper four corners of the frame 1.
5 is a lower support disposed between the lower part of the outer tank 2 and the base 3, and 6 is a lower support by making the upper part of the outer tank 2 protrude upward into a rectangular tube shape. It is an integrally formed cylindrical body, which allows a clothes input port B7 to be provided in the upper part of the outer tank 2.
is formed.

Reference numeral 8 denotes a top plate made of synthetic resin fixed to the upper end of the frame 1, and a recess 9 is formed in the center thereof, in which a clothes slot A10 is opened. 11
is the recess 9 in order to open and close the clothes input port A10.
The top cover 12 is pivotally supported on the rear edge, and 12 is a keyboard disposed on the top plate 8, which includes washing program selection keys,
A pause key and the like for temporarily stopping the program are arranged.

13 is a square tubular rubber packing, as shown in FIG.
As shown, the upper end portion 14 is clamped and fixed to the rim of the clothes input port A10 by a fixing member A15, and the lower end portion 16 is clamped and fixed to the rim of the clothes input port B7 by a fixing member B17. Thereby, the clothes input port A10 and the clothes input port B7 are connected in a watertight manner.

The structure of the rubber packing 13 will now be explained based on FIGS. 3 to 5. The rubber packing 13
is made of rubber with a hardness of 30 to 50 degrees and is formed into a bellows shape with a V-shaped cross section, and the wall thickness of the peak part 18 is 1 mm thicker than the other parts.
It is set to be thick (specifically, 3 to 5 mm). 19
is a vertical rib integrally formed at a position orthogonal to the mountain portion 18 of the rubber packing 13 so as to protrude inwardly and outwardly. There are four vertical ribs 19 on each side of the rubber packing 13.
Each book (total 16) is provided, and the width is 10 mm and the height is 3.
It has dimensions of mm.

FIG. 6 shows a cushioning material 2 formed of an elastic and flexible material such as urethane foam or non-woven fabric on the outer periphery of the rubber packing 13, excluding the vertical ribs 19.
This cushioning material 20 prevents the rubber packing 13 from rubbing against the top plate 8 and the like and from being torn.

Now, in FIG. 2, 21 is a drain port provided at the bottom of the outer tank 2, 22 is a drain hose for discharging the waste water from the drain port 21 to the outside of the machine, and 23 is a drain port provided at the bottom of the outer tank 2. This is an electric drain valve for opening and closing the mouth part 21. As is well known, the valve is opened by winding a wire using the rotational force of the drain motor 24, and the valve is opened by cutting off the rotational force of the motor. It returns to the closed state by the bias of a spring (not shown).

25 is a drum made of synthetic resin that is rotatably supported in the outer tank 2; 26 is a baffle having a triangular cross section that is bulged at every 120 degrees along the inner peripheral surface of the drum 25; Reference numeral 27 indicates a number of through holes bored around the drum 25, and reference numeral 28 indicates a number of lateral ribs A that are integrally provided along the inner peripheral surface of the drum 25.

Reference numeral 29 indicates a clothing input port C formed on the circumferential surface of the drum 25, and 30 indicates a clothing input port C for opening and closing the input port C29.
A lid made of synthetic resin is slidably provided along the circumferential surface of the drum 25, and reference numeral 31 denotes an engagement/disengagement mechanism formed between one side edge of the lid 31 and the mouth edge of the input port C29. ,3
Reference numeral 2 denotes a storage portion integrally recessed in the center of the upper surface of the lid 30, where detergent is stored in advance.

7 to 9 are shown on the back side of the lid 30.
As shown in the figure, vertical ribs B33 and horizontal ribs B34 are integrally formed in a lattice shape. This is to prevent clothes from adhering to the back side of the lid 30, not only from rubbing the clothes inside the drum during washing, but also from getting caught in the clothes when opening and closing the lid 30. It is most effective to make the side length of the lattice part 8 mm or less, and to make the horizontal ribs B34 lower in height than the vertical ribs B33 (ribs extending in the sliding direction of the lid 30).

A three-phase induction motor 35 is fixed to the outer bottom of the outer tank 2, and is connected to the drum 25 via a pulley and a belt. The induction motor 35 is driven by an inverter and rotates at low speed during washing and drying, and at high speed during dehydration.

Thus, the washing machine of this embodiment has the following steps: washing - intermediate dehydration - first rinse - intermediate dehydration - second rinse - final dehydration -
Perform each step of drying in sequence.

[0020] During the washing process, the motor 35
As a result, the drum 25 is repeatedly reversed at a low speed (approximately 50 rpm), and the laundry in the drum 25 is swept up by the baffle 26 and falls from above to below, which is what is called beating washing.

During the dewatering process, the motor 35 moves the drum 25 at high speed (approximately 800 rpm).
The laundry in the drum 25 is rotated in one direction, and the laundry in the drum 25 is dehydrated by centrifugal force.

[0022]

Effects of the Invention In the structure of the drum-type washing machine of the present invention, the thickness of the bellows-shaped connecting member that connects the outer tub and the frame is made as thin as possible to absorb vibrations of the connecting member against the outer tub. Can improve strength.

[0023] Furthermore, since the connecting member is reinforced at its peaks or valleys, the bellows portion is difficult to flip during expansion and contraction, and the generation of noise due to this flipping can be prevented.

[Brief explanation of the drawing]

FIG. 1 is a schematic perspective view of a drum-type washing machine of the present invention.

FIG. 2 is a longitudinal sectional view as well.

FIG. 3 is a perspective view of the connection body.

FIG. 4 is a sectional view taken along line AA in FIG. 3;

FIG. 5 is a cross-sectional view showing the attachment relationship of the outer tank, the top plate, and the connection body.

FIG. 6 is a diagram corresponding to FIG. 5 in another embodiment.

FIG. 7 is a longitudinal cross-sectional view of the lid.

FIG. 8 is a cross-sectional view of the lid.

FIG. 9 is a back view of the lid.

FIG. 10 is a diagram for explaining a problem with a conventional connection body.

[Explanation of symbols]

1 Frame 2 Outer tank (water tank) 7 Clothing slot B 10 Clothing slot A 13 Rubber packing (connection member) 18 Yamabe 19 Vertical rib A

Claims (1)

[Claims] Claim 1: A frame, a water tank elastically supported within the frame, clothing slots provided on the upper surface of the frame and the top of the water tank, and a watertight connection between each slot. a bellows-shaped connecting member that connects the connecting member, the thickness of the crest or trough in the connecting member is thicker than other parts, and a plurality of vertical ribs that are perpendicular to the crest or trough are integrated. A drum-type washing machine characterized by being formed.