JPH042396A - Washing machine - Google Patents

Abstract

PURPOSE:To prevent vigorous agitation of detergent in a drum and to suppress excessive foaming at the time of washing by providing a cover for opening or closing clothes throwing port into the drum in a recess at part of the periphery of the drum, and forming an oblique surface at one of opposed sidewalls of the recess in a circumferential direction. CONSTITUTION:Since a cover 62 is contained in a recess 54 to be substantially in the same plane as the periphery of a drum 42 in a washing step, the periphery of the drum 42 is substantially circular to improve a balancing effect as the drum 42 and to reduce agitating degree of detergent by the cover 62. Particularly, since the sidewalls 55, 56 of a recess unit 54 are inclined, the degree of mixing the detergent by the sidewalls 55, 56 at the time of rotation of the drum 42 is small, and clothes to be cleaned are prevented from being engaged with the end of the recess 54 to cause them to be damaged in the drum 42.

Description

[Detailed description of the invention] (b) Industrial application field The present invention relates to a drum-type washer iJ1 machine.

(B) Conventional technology As a conventional example, an outer tank is supported within a frame, a horizontal shaft type drum is rotatably supported within the outer tank, and by rotating the drum, In a drum-type washing machine for washing laundry, a clothes input port is provided on the circumference of the drum, and an M body for opening and closing this input port is disclosed in Japanese Utility Model Publication No. 1986-1263 ( D06F
23. '02).

(c) Problems to be Solved by the Invention In this type of washing machine, if excessive foaming occurs during washing, the foam may remain in the tank even after draining and contaminate the laundry and rinse solution. In the conventional example, since the lid protrudes beyond the circular surface of the drum, the detergent liquid is vigorously stirred by the lid when the drum rotates (in other words, it is difficult to stir the detergent liquid while the encapsulation is being promoted). was there.

The present invention relates to improvements in washing machines and is intended to solve these problems.

(d) Means for Solving the Problems The present invention supports an outer tank within a frame, and has a horizontal axis type synthetic resin T# in the outer tank. A washing machine rotatably supporting a 1ζ ram, wherein a recess is formed in a part of the circumferential surface of the drum,
In this recess, an input port for clothes in the drum and an M body for opening and closing the input port are provided, and an inclined surface is formed on at least one of the circumferentially opposing side walls of the recess. This is what I did.

(E) Effect: Since the drum is provided with a recess and the lid is provided within this recess, the extent to which the lid protrudes from the circular surface of the drum is reduced.

Furthermore, by forming an inclined surface on at least one of the circumferentially opposing side walls of the recess, the degree of agitation of the detergent liquid at the end of the recess is reduced.

(f) Example Embodiments of the present invention will be described 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 horizontal support surface formed on the lower surface of the outer tank 2, and 4 is fixed to the support surface 3. The iron mounting is a board.

5 ・ is an upper support for elastically suspending and supporting the outer tank 2 from the upper four corners of the frame 1; 6 ・ is an upper support for elastically suspending and supporting the outer tank 2 from the upper four corners of the frame 1; A lower support 11 disposed at 7 is a cylindrical body integrally formed by projecting the upper part of the outer tank 2 upward into a rectangular cylindrical shape. is formed. Reference numeral 9 denotes a top plate made of synthetic resin fixed to the upper end of the frame 1, and the front edge has an operation part 9a for accommodating electronic components, etc., and the rear edge has an accommodating part 9b for accommodating a water supply device etc. It has a bulging shape, and a rectangular clothing input port AIO is provided in the center. Reference numeral 11 indicates various operation keys arranged on the upper surface of the operation section 9a. Reference numeral 12 denotes a bellows-shaped rubber gasket, which connects the clothes input port AIO and the clothes input port B8 in a watertight manner. 13
14 is a safety cover that opens and closes the clothing input port AIO, and 14 is an upper lid that opens and closes the top surface of the safety cover 13.

Now, the outer tub 2 is formed with only a rear wall 2a separately, and is fixed after a washing drum, which will be described later, is housed through the rear opening of the outer tub 2. ] 5 is an introduction opening integrally formed in the center of the rear wall 2a to protrude inward, 16 is a ventilation duct integrally formed on the outer surface of the rear wall 2a, and extends from the upper center to the introduction opening 15. It is formed by 17 is a drum rear bearing fixed within this air duct 16. Further, a heater casing 18 is formed in the upper part of the air duct 16, and a sheathed heater A19 is installed therein. Reference numeral 20 denotes an iron plate surrounding the heater A19, and is used to prevent the resin material from catching fire even if a lump or the like ignites.

21 is 1 of the rear wall 2a. An overflow port 22 opened at a height of /2 is integrally formed on the rear wall 2a, and a water landing chamber for draining overflow from the overflow port 21; 23.
Reference numeral 23 indicates a pair of electrodes disposed within the overflow chamber 22 for detecting abnormal foaming, and 24 indicates an air trap integrally formed at the lower part of the rear wall 2a, which is disposed within the accommodation portion 9b. It is connected to a water level sensor 25 via a pressure hose 26. 27 is a circulation duct integrally formed at a position above the overflow level of the front 5-pi rear wall 2a;
It communicates with the inside of the outer tank 2 via a circulation port 28. 29
3o is a ventilation fan disposed in the circulation duct 27, and 3o is a connecting pipe connecting the circulation duct 27 and the ventilation duct 16.

Reference numeral 31 indicates a drain port provided at the bottom of the outer tank 2, and 32 indicates a drain hose for leading out the waste water from the drain port 31 to the outside of the machine.
2 is connected via the R water hose 33.

3.1 is a drain electric valve that opens and closes the drain port portion 31, and as is well known, the valve is opened by winding a wire with the rotational force of the drain motor 35, and the rotational force of the motor is cut off. The valve returns to the closed state due to the bias of a spring (not shown).

36 is a dual water supply solenoid valve device installed inside the housing portion 9b, one water supply valve A36a is connected to a water supply hose A37.
The other water supply valve B56b is connected to a part of the front corner of the outer tank 2 through a water supply hose B39. That is, the water discharged from the water supply hose B39 falls along the inner surface of the front wall of the outer tank 2, and flows through the drain port 31 (
It's all over.

40 is a sheathed heater B disposed at the inner bottom of the outer tank 2.
, 41 is a drum rear bearing fixed to the center of the front wall of the outer tank 2.

Now, 42 is a horizontal shaft type washing/dehydrating/drying drum made of synthetic resin that is rotatably supported in the outer tank 2, and is attached to a rear open type body part 43 and a rear side of the body part 43. It consists of a fluid balancer 44 and a rear plate 45 fixed to the rear side of the balancer 44.

46, 47, 48 are 12 along the inner circumferential surface of the body 43.
Baffle with a triangular cross section, bulging at every 0 degrees, 49
50 are a number of through holes drilled around the body portion 45;
are horizontal ribs A that are integrally provided along the inner circumferential surface of the body portion 43. The horizontal rib A50 is also formed on the upper surface of the baffle.

A suction port 51 is formed protruding from the center of the rear plate 45 and is directed toward the introduction amount D 15, and this suction port includes:
)] A support shaft 52 is fixed to the center of the shaft. Further, the suction port 51 is integrally formed with a trickle fan that also serves as a filter. Reference numeral 53 denotes a support shaft fixed to the center of the front plate of the body 43. That is, during drying, the drying air flows through the air blower fan 29 - connection pipe 30 - heater, A
19-Blower duct 16-Suction port 51-Inside drum 42-
The air circulates through the circulation port 28, circulation duct 27, and blower fan 29. Further, during this drying, the water supply valve B56b is driven to supply water along the inner surface of the outer tank 2, and the drying air is cooled and dehumidified by this water supply.

Now, 54 is the medium, 0, and square pieces 120 in the body 43.
It is a recess formed by reducing the diameter of a circular arc portion of the degree, and the side walls 55, 56 and the bottom surface 57 that face each other in the circumferential direction
By setting the angles .alpha. to obtuse angles, the side walls 55 and 56 themselves form inclined surfaces.

Reference numeral 58 denotes a rectangular clothes input port C provided at the bottom of the recess 54, and is provided near one end of the bottom surface 57 of the recess 54, and its size is equal to that of the bottom of the recess 54. occupies approximately 1/2 of the area. Reference numerals 59 and 60 denote slide grooves formed on the front and rear edges of the bottom of the recess 54, and the rear portion 59 is constructed by attaching a separate slide cover 61.

Reference numeral 62 denotes a synthetic resin lid for opening and closing the input port C58, and it slides within the recess 54 by being supported within the slide grooves 59 and 60. Reference numeral 63 denotes an engagement/disengagement mechanism formed between one side edge of the lid 62 and the mouth edge of the input port C58, and 64.65 is an integral recess provided in the center of the upper surface of the lid 62. There are three storage areas where laundry treatment agents such as detergent, bleach, and fabric softener are stored in advance. Incidentally, on the back side of the lid body 62, as shown in FIG.
Lateral ribs B66 may be formed.

The drum 42 is connected to the drum rear bearing 17 and the drum front bearing 4 with its support shafts 52 and 53.
1 is rotatably supported. At this time, the support shaft 5
3 protrudes from the front wall 2b of the outer tank 2, and a driving boot 1) 67 is fixed thereto.

Now, 68 is attached to the root 4 and is attached to the metal fitting A 69
7o is a dewatering motor fixed to the base 4 via a metal fitting B71, and the washing motor 68 and the dehydrating motor 71 are driven by the dehydrating motor 71. Pulleys 67 are connected via pulleys and belts, respectively.

In such a configuration, during the washing process, the washing drum 42 is repeatedly reversed at low speed by the washing motor 68, and the laundry in the drum 42 is swept up by the baffle and falls from above to below, which is a so-called flop washing process. At the same time, the horizontal ribs A50 and (horizontal ribs B66
) is rubbed and destroyed.

Furthermore, in this washing process, the lid body 62 is housed in the recess 54 and is substantially flush with the circular surface of the drum 42, so that the circular surface of the drum 420 forms a substantially circular shadow. The drum 42 has a good balance effect, and the degree to which the detergent liquid is stirred by the lid 62 is small.

In particular, in this embodiment the side walls 55, 56 of said recess 54
Since the side wall 5 is inclined, when the drum 42 rotates, this side wall 5
5.56, the degree of stirring of the detergent liquid is small, and damage caused by laundry being caught at the end of this recess 54 in the drum 42 can also be reduced.

In addition, during the dehydration process, the dehydration motor 70 (from
The drum 42 is rotated in one direction at high speed, so that the drum 42
The laundry inside is dehydrated by centrifugal force. Further, during the drying process, the drum 42 is repeatedly reversed at low speed by the washing motor 68, and the air duct 16,
Dry air is introduced into the drum 42 from the suction port 51,
Heat exchange is performed with the laundry in the drum 12.

7 and 8 show another embodiment, in which instead of having the side walls 55,56 of the recess 54 sloped, the sloped surfaces 72...
It is a triangular rib 73 with plural bites.
be. With such a configuration, the ribs 73- rectify the detergent solution, the inclined surface 72 allows the detergent solution to escape, and the detergent solution is not vigorously stirred.

In addition, since the diameter of the drum 62 changes at the end of the recess 54 + the wall 35, stress tends to concentrate in this area when the drum 62 is rotated at high speed during dewatering, resulting in damage. Although there is some concern, the ribs 73 also have the effect of reinforcing this portion.

In the present invention, as in the embodiments to be described later, if at least one side wall of the recess 54 is formed with an inclined surface, the recess 54 will partially function.

(g) Effects of the Invention The washing machine of the present invention has a structure that prevents the detergent liquid from being violently stirred in the drum, so that excessive foaming during washing can be suppressed.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of the washing machine of the present invention, Fig. 2 is a side sectional view, Fig. 3 is a vertical sectional view, Fig. 4 is a rear view with the main parts cut away, and Fig. 5 is the same main parts. 6 is an exploded perspective view of the trunk, FIG. 7j is a view corresponding to the main part of FIG. 3 in another embodiment, and FIG. 8 is a view corresponding to the main part of FIG. 5. ]... Frame, 2... Outer tank, 42... Drum, 54...
・Recess, 56...Side wall (slanted surface), 58...Inlet C1
62...Lid body, 72...Slope surface. Figure 5

Claims (1)

[Claims] (1) An outer tank is supported within the frame, and a horizontal shaft type synthetic resin drum is rotatably supported within the outer tank,
A recess is formed in a part of the circumferential surface of the drum, and in this recess, an inlet for inserting clothes into the drum and a lid body for opening and closing the inlet are provided, and further, a recess is provided in the recess in a circumferential direction of the recess. A washing machine characterized by forming an inclined surface on at least one of the side walls facing the .