JPH0415090A - Washing machine - Google Patents

Abstract

PURPOSE:To improve efficiencies of washing, dehydration, and drying by inclining the axial lines of a number of through holes provided on the circumference of the drum of a drum type washing machine to the normal of the drum. CONSTITUTION:A washing machine has a constitution in which an outer tank 2 is supported in a frame 1, a horizontal shaft type drum 42 having a number of through holes 49 on the circumference is rotatably supported in the outer tank 2, and the drum 42 is reversed. The axial line of each through hole 49 is inclined to the normal of the drum 42 by an angle theta in the positive rotating direction of the drum 42. At the time of washing, replacement of washing water in the drum is promoted, and at the time of drying, a dry air is shut in the drum at the time of positive rotation to promote drying, and the dry air containing moisture after heat exchange is discharged out of the drum at once at the time of reverse rotation.

Description

[Detailed description of the invention] (b) Industrial application field The present invention relates to a drum type washing 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 that washes and dehydrates clothes, a large number of holes are drilled around the drum in order to allow washing water to enter and exit the drum during washing, and to release water from the clothes to the outside of the drum during spin-drying. The set was published in Utility Model Publication No. 58-9570 (D0
6F37/36).

(c) Problems to be Solved by the Invention In the conventional example, since the through holes are formed in the same direction as the normal direction of the drum (direction perpendicular to the drum), when washing It was not possible to allow washing water to flow in and out of the drum or to release water from clothes to the outside of the drum during spin-drying, and no improvement in washing or spin-drying effects could be expected.

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, rotatably supports a horizontal shaft type drum having a large number of through holes around the outer tank, and This washing machine performs washing, drying, etc. operations by reversing the drum, and the axis of the through hole is inclined with respect to the normal line of the drum.

Further, in the present invention, operations such as dehydration and drying are performed by rotating the drum in one direction, and the axis of the through hole is set in the rotational direction of the drum with respect to the normal line of the drum. It is tilted in the opposite direction.

In addition, in the above invention, among operations such as washing, dehydration, and drying,
Any device that performs at least one operation is sufficient.

Further, the dryer of the present invention dries clothes in the drum by introducing hot air into the drum while rotating the drum in one direction, and the axis of the through hole is aligned with the direction of the drum. It is inclined with respect to the line in the same direction as the rotational direction of the drum.

(E) Effect: For example, if the axis of the through hole is inclined in the normal rotation direction of the drum with respect to the normal line of the drum, when the drum rotates forward, washing water flows into the drum according to the inclination of the through hole. When the drum rotates in the opposite direction, the washing water and drying air inside the drum tend to be discharged outside the drum according to the inclination of the holes.

Therefore, during washing, the exchange of washing water inside and outside the drum is facilitated, and during drying, the drying air is trapped inside the drum during forward rotation to promote drying, and during reverse rotation, the drying air containing moisture after heat exchange is accelerated. Air is expelled out of the drum all at once.

In addition, by tilting the axis of the through hole in the opposite direction of the drum rotation with respect to the normal line of the drum, when the drum rotates, water and drying air inside the drum will flow to the drum according to the inclination of the through hole. Easily discharged outside.

Therefore, during spin-drying, the water from the clothes is smoothly released outside the drum, and during drying, when the so-called cool-down operation in which cold air is introduced into the drum to prevent the clothes from wrinkling, the inside of the drum cools down. It is effective because it has good ventilation.

Furthermore, by tilting the axis of the through hole in the direction in which the drum rotates in one direction with respect to the normal line of the drum, when the drum rotates, air outside the drum will be drawn into the drum according to the inclination of the through hole. As a result, hot air inside the drum tends to stay inside, promoting heat exchange with clothing.

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

1 is a sheet metal frame, 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 [2], and 4 is a horizontal support surface 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 member 7 disposed between the outer tank 2 and the lower support member 7 is a cylindrical body integrally formed by projecting the upper part of the outer tank 2 upward into a rectangular cylindrical shape. B8 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 A1.0 is provided in the center. 11... are various operation keys arranged on the upper surface of the operation section 9a. 12
is a bellows-shaped rubber gasket, which connects the clothes input port AIO and the clothes input port B8 in a watertight manner.

13 is a safety cover for opening and closing the clothes input port AIO 1
Reference numeral 4 denotes an upper lid that opens and closes the upper surface of the safety cover 13.

Now, only the rear wall 2a of the outer tub 2 is formed separately, and the rear wall 2a is fixed after a washing drum, which will be described later, is housed through the rear opening of the outer tub 2. Reference numeral 15 denotes an introduction opening integrally formed in the center of the rear wall 2a to protrude inward, and 6 denotes a ventilation duct integrally formed on the outer surface of the rear wall 2a, extending 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, the air duct 16
A heater casing 18 is formed in the upper part of the heater casing 18, 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.

Reference numeral 21 indicates an overflow port provided at a height of 1/2 of the rear wall 2a, 22 indicates an overflow chamber integrally formed with the rear wall 2a, and is used to drain out water from the overflow port 21; 23.2
3 is a pair of electrodes arranged in the overflow chamber 22 to detect abnormal foaming; 24 is an air trap integrally formed in the lower part of the rear wall 2a; and 24 is an air trap arranged in the housing part 9b It is connected to a water level sensor 25 via a pressure hose 26. A circulation duct 27 is integrally formed at a position above the overflow level of the rear wall 2a, and communicates with the inside of the outer tank 2 through a circulation port 28. Reference numeral 29 is a blower fan disposed in the circulation duct 27, and 30 is a connecting pipe connecting the circulation duct 27 and the blower 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 an overflow hose 33. 3
Reference numeral 4 designates a drain electric valve that opens and closes the drain port portion 31. As is well known, the valve is opened by winding a wire with the rotational force of the drain motor 35, and the valve is opened by cutting off the rotational force of the motor. It returns to the closed state due to the bias of the spring.

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 upper front corner of the outer 11F2 via 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 outside 1i12, and reaches the drain port 31.

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

Now, 42 is a horizontal shaft type washing/dehydration/drying drum made of synthetic resin that is rotatably supported in the outer tank 2, and is attached to the rear open body part 43 and the rear side of the printing 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.
Panfur with a triangular cross section, bulging at every 0 degrees, 49
* is a large number of through holes drilled around the body portion 45;
The axis of the through hole 49 (line P in FIG. 7) is aligned with the normal to the drum 42 (line Q in FIG. 7) in the forward rotational direction of the drum 42 (
It is tilted by an angle θ in the direction of arrow A in FIGS. 7 and 8). 49a... is the baffle 46, 47, 48
The axes of the through holes 49a are substantially parallel to the rotational direction of the drum 42. 50
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 that faces the introduction opening 15 is formed protrudingly in the center of the rear plate 45.
A support shaft 52 is fixed to the center of the. Further, a trickle fan that also serves as a filter is integrally formed in the suction port 51. A53 is a support shaft fixed to the center of the front plate of the body 43. In other words, when drying, the drying wind
The ventilation fan 29 - the connection pipe 30 - the heater A 19 - the ventilation duct) 16 - the suction port 51 - the inside of the drum 42 - the circulation port 28
-Circulation duct 27-Blower fan 29-... Also, during this drying, the water supply valve B56b is driven to supply water along the inner surface of the outer tank 2,
The dry air is cooled and dehumidified by this water supply.

Now, 54 is a recess formed by reducing the diameter of a circular arc portion with a central angle of about 120 degrees in the body portion 43,
By setting the angle α between the circumferentially opposing side walls 55 and 56 and the bottom surface 57 to be obtuse angles, this side wall 5
5.56 itself constitutes an inclined surface.

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 a locking/disengaging mechanism formed between one side edge of the lid 62 and the mouth edge of the input port C58, and 64 and 65 denote a storage recessed integrally in the center of the upper surface of the lid 62. This is the place where laundry treatment agents such as detergent, bleach, and fabric softener are stored in advance. Incidentally, a horizontal rib B66 may be formed on the back surface of the lid 62, as shown in FIG.

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 drive pulley 67 is fixed thereto.

Now, 68 is the washing motor which is fixed to the plate 4 through the metal fitting A69, and 70 is the washing motor which is attached to the plate 4.
The washing motor 68 and the dewatering motor 70 are connected to each other via a pulley and a belt, 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... (horizontal ribs B66
...) to be scrubbed and washed.

At this time, since the axis P of the through hole 49 is inclined in the forward rotation direction of the drum with respect to the normal Q of the drum 42, in FIG. 8, when the drum 42 rotates forward, the through hole 49
The washing water is easily drawn into the drum according to the inclination of the holes 49, and when the drum 42 rotates in the reverse direction, the washing water in the drum 42 is easily discharged according to the inclination of the through holes 49.

Therefore, the exchange of washing water inside and outside the drum 42 is facilitated.

Further, during the dewatering process, the drum 42 is rotated at high speed in the forward direction and the reverse direction by the dehydration motor 70,
The laundry in the drum 42 is dehydrated by centrifugal force.

At this time, the water coming out of the clothes is smoothly discharged out of the drum according to the inclination of the through holes 49, and moisture is less likely to accumulate inside the drum.

Further, during the drying process, the drum 42 is repeatedly reversed at low speed by the washing motor 68, and drying air is introduced into the drum 42 through the air duct 16 and the suction port 51, so that the washing inside the drum 42 is Heat exchange occurs with objects.

At this time, when the drum 42 rotates forward, the air outside the drum tends to be drawn in according to the inclination of the through hole 49, making it difficult for the drying air inside the drum to escape, and the drying air gets trapped inside the drum 42, causing heat generation. Exchange is promoted, and when the drum rotates in reverse, the dry air containing moisture after heat exchange is discharged out of the drum at once.

Then, when this operation is performed for a predetermined period of time, the heater A
19 is turned off, and a so-called cool-down operation is performed in which the drum 42 is continuously rotated in the forward and reverse directions.

In this cool-down operation, the air inside the drum 42 is easily discharged to the outside of the drum 42 according to the inclination of the through holes 49, so that the air inside the drum 42 is improved, and the effect of preventing wrinkles due to the cold air is good.

The drying process described above consists of a main operation in which hot air is introduced into the drum while rotating the drum, and a cool-down operation in which cold air is introduced into the drum while rotating the drum in the normal direction.In the main operation, instead of inverting the drum, It may be rotated continuously in the forward direction. In this way, during the main operation, hot air can be sufficiently trapped within the drum to further promote heat exchange with clothing.

Further, in this embodiment, since the drum 42 is formed by resin molding, the through holes 49 have a thickness sufficient to guide washing water and drying air inside and outside the drum. If the through holes 49 are made of a metal plate and have no thickness, it is preferable to provide an inclined wall 72 such that the axis of the through holes 49 is inclined, as shown in FIG.

(G) Effects of the Invention The washing machine of the present invention can improve the efficiency of washing, dehydration, drying, etc. due to the unique configuration of the through holes provided in the drum.

[Brief explanation of drawings]

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 body, FIG. 7 is an enlarged view of the main part in FIG. 3, FIG. 8 is a sectional view of the through hole, and FIG. This is a diagram equivalent to Figure 8. 1. Frame, 2. Outer tank, 42. Drum, 49.
・Through hole.

Claims (3)

[Claims] (1) An outer tank is supported within the frame, and within the outer tank, a horizontal shaft type drum with many through holes around the periphery is rotatably supported, and by reversing this drum, washing and drying etc. A washing machine, characterized in that the axis of the through hole is inclined with respect to the normal line of the drum. (2) An outer tank is supported within the frame, and within the outer tank, a horizontal axis type drum with many through holes around the periphery is rotatably supported, and by rotating this drum in one direction, dewatering can be carried out. 1. A dehydrator for performing operations such as drying, characterized in that the axis of the through hole is inclined in a direction opposite to the rotational direction of the drum with respect to the normal line of the drum. (3) An outer tank is supported within the frame, and within the outer tank, a horizontal axis type drum with many through holes around the periphery is rotatably supported, and while the drum is rotated in one direction, The apparatus dries the clothes in the drum by introducing hot air, and is characterized in that the axis of the through hole is inclined in the same direction as the rotational direction of the drum with respect to the normal line of the drum. dryer.