JPH03112596A - Washing machine - Google Patents

Abstract

PURPOSE:To prevent object to be washed from sticking to the back side of a lid by forming the back side of the lid in the shape of a rugged surface. CONSTITUTION:So-called strike washing is performed in which objects to be washed are scraped up with a baffle and dropped from top to bottom in a washing drum 44 is repeatedly reversed by a washing motor at a low speed. At the same time, rub washing is performed with lateral ribs 54 and 80. During drying process, the washing drum 44 is rotated in one direction by a drying motor at a high speed so that the washing in the drum 44 is dried by centrifugal force. In either process, the washing is likely to come off the inner wall of the drum 44 because of the presence of the lateral ribs 54 and 80. The washing that has adhered to the upper portion of the drum 44 easily comes off and drops down.

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 tub is supported within a frame, a horizontal axis type washing drum is rotatably supported within the outer tub, and by rotating the washing drum, the washing drum is loaded into the drum. The outer tub and the washing drum are each provided with an input port for loading the laundry from above, and a lid is inserted into the drum to open and close the input port. A drum-type washing machine that is pivotally supported at the end of the spout is shown in Japanese Utility Model Publication No. 4312/1983 (D06F37728).

(c) Problems to be Solved by the Invention In the conventional example, small items such as handkerchiefs may adhere to the back side of the lid body, and in this case, the force of opening the lid body may cause the handkerchiefs etc. There is a risk that small items may fall between the outer tub and the washing drum.

Further, if the lid is of a sliding type, there is a risk that laundry attached to the back side of the lid may be caught between the lid and the washing drum when the lid is opened.

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 tub within a frame, rotatably supports a horizontal axis type washing drum within the outer tub, and rotates the washing drum. A washing machine for washing laundry loaded into a drum, wherein the outer tub and the washing drum are each provided with an input port for loading laundry from above, and a lid body for opening and closing the input port of the drum. , and an uneven surface is formed on the back side of the lid.

Note that "washing" in the present invention is a general term for cleaning operations such as washing, rinsing, spin-drying, drying, etc., and the concept of washing machine includes not only one that performs all of the operations but also one that only performs a single operation. included.

(e) Effect: By forming an uneven surface on the back side of the lid, laundry becomes difficult to adhere to the back side of the lid.

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

In Figures 1 to 4, 1 is a sheet metal frame;
3 is a horizontal support surface formed on the lower surface of the outer tank 2, and 4 is an iron mounting plate fixed to the support surface 3. .

5... is an upper support body for elastically suspending and supporting the outer 11y2 from the upper four corners of the frame 1;
. . . is a lower support provided between the plate 4 and the four corners of the bottom 1a of the frame 1 to which the outer tank 2 is attached, and 7 is a lower support that causes the upper part of the outer tank 2 to protrude upward in the shape of a rectangular tube. This is an integrally formed cylindrical body, and thereby a clothes input port B8 is formed in the upper part of the outer tub 2. Reference numeral 9 denotes a top plate made of synthetic resin fixed to the upper end of the frame l, with an operating section 9a for accommodating electronic components, etc. at the front edge, and an accommodating section 9b for accommodating a water supply device, etc. at the rear edge, respectively. It has a bulging shape, and a rectangular clothing input port AIO is provided in the center. 11・
... are 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 is a safety cover that opens and closes the clothing input port AIO; 14 is a top lid that opens and closes the top surface of this safety cover 13; and 15 is attached to the base of the top lid 14 in order to give a sense of movement when opening and closing the top lid 14. It is a screw recoil spring.

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. 16 is a cylindrical portion integrally formed inwardly projecting from the center of the rear wall 2a;
Reference numeral 17 denotes a ventilation duct A integrally formed on the outer surface of the rear wall 2a, which extends from the center of the upper part to the cylindrical portion 16, and a wall surface 18 covering the cylindrical portion 17 is located close to the cylindrical portion 16. The drum rear bearing 19 is fixed here. Further, a heater casing 20 is formed in the upper part of the air duct A17, and a sheathed heater A21 is installed therein. Reference numeral 22 denotes an iron plate surrounding the heater A21, and is used to prevent the resin material from catching fire even if a lump or the like ignites.

Reference numeral 23 indicates an overflow port provided at a height of 1/2 of the rear wall 2a; 24 indicates an overflow chamber integrally formed with the rear wall 2a for draining overflow water from the overflow port 23; 25.2
Reference numeral 5 designates a pair of electrodes disposed within the diving chamber 24 to detect abnormal foaming, and reference numeral 26 designates 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 27 via a pressure hose 28. A circulation duct 29 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 30. Reference numeral 31 denotes a blower fan disposed in the circulation duct 29, and 32 a connecting pipe connecting the circulation duct 29 and the blower duct A17.

33 is a drain port provided at the bottom of the outer tank 2; 34 is a drain hose for discharging waste water from the drain port 33 to the outside of the machine;
4 is connected via an overflow hose 35. 3
Reference numeral 6 denotes a drain electric valve that opens and closes the drain port portion 33. As is well known, the valve is opened by winding a wire with the rotational force of the drain motor 37, 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.

38 is a dual water supply solenoid valve device installed inside the housing part 9b, one water supply valve A38a is connected to the water supply hose A39.
The other water supply valve B58b is connected to a part of the upper front corner of the outer tank 2 via a water supply hose B41. That is, the water discharged from the water supply hose B41 falls along the inner surface of the front wall 2b of the outer lW2 and reaches the drain port 33.

42 is a sheathed heater B disposed at the inner bottom of the outer tank 2.
, 43 is a drum rear bearing fixed to the center of the front wall 2b of the outside WI2.

Now, reference numeral 44 is a horizontal shaft type washing/dehydrating/drying drum made of synthetic resin that is rotatably supported in the outer tank 2, and as shown in FIG. It is composed of a fluid balancer 46 attached to the rear side and a rear plate 47 fixed to the rear side of the balancer 46.

48... is a screw boss integrally formed protruding along the rear periphery of the balancer 46, 49 is each screw boss 18...
・It is a rib that is erected to connect between 1. The routes (dotted lines) are shown in Figure 5, but the details are as shown in Figure 6.
The upper end surface thereof is configured to be flush with each upper end surface of the screw bosses 48 . In this way, by making the screw bosses 48 protrude from the balancer 46, the degree of protrusion of the screw bosses 48 into the balancer 46 can be reduced, and the movement of the fluid inside the balancer 46 can be reduced. ... will not be excessively inhibited. Furthermore, the ribs 49 increase the strength of the balancer 46.

50, 51, and 52 are 12 along the inner circumferential surface of the body portion 45.
A rose with a triangular cross section that bulges out at every 0 degrees, full, 53
. . . indicates a large number of through holes drilled around the body portion 45, 5
4... are horizontal ribs A that are integrally provided along the inner circumferential surface of the body portion 45. The horizontal rib A54 is also formed on the upper surface of the baffle.

The balancer 46 is a hollow annular body filled with a predetermined amount of salt water, and resistance plates 55 are provided inside the balancer 46 at intervals of 30 degrees from the rear side inward. The distance between the resistance plate 55 and the inner peripheral surface of the balancer 46 is as follows:
The diameter is 5 mm or less, and the outer circumferential side is set smaller than the inner circumferential side. 56 are recesses formed along the inner circumferential surface of the balancer 46, and the recesses 56 also serve as a resistance plate. 57 is the central angle of the balancer 46 of about 1
The recess A is formed on the circumferential surface of the balancer 46 by reducing the diameter of the 50 degree arc portion.

A suction port 58 that is inserted into the cylindrical portion 16 is formed protruding from the center of the rear plate 47.
A support shaft 59 is fixed to the center of the. Further, an axial fan 60 that also serves as a filter is integrally formed in the suction port 58. 61 is the front plate 45 of the body portion 45;
This is a support shaft fixed at the center of a. That is, during drying, the drying air flows between the blower fan 31, the connecting pipe 32, and the heater A.
21-Blower duct A17-Suction port 58-Inside of drum 44-Circulation port 30-Circulation duct 29-Blower fan 31-...
・It cycles. Also, during this drying, the water supply valve B5
8b is driven to supply water along the inner surface of the front wall 2b of the outer tank 2, and the drying air is cooled and dehumidified by this water supply.

62 is a recess B formed by reducing the diameter of a circular arc portion having a central angle of approximately 150 degrees in the body portion 45; 63 is this recess B
A rectangular clothing input port C is opened at the bottom of the recess B62, and its size occupies approximately 1/2 of the area of the bottom of the recess B62. Reference numerals 64 and 65 denote slide grooves formed on the front and rear edges of the bottom of the recess B62, and the rear portion 64 is constructed by attaching a separate slide cover 66. Furthermore, the slide grooves 64 and 65 are as follows.

The distance W between the slide grooves 64 and 65 is as shown in FIG.
The input port C63 is formed in a letter shape such that it gradually becomes larger from one side edge to the other side edge (W 1 < W 2 in the figure).

Reference numeral 67 denotes a locking pawl formed to protrude upward from one side edge of the input port C63, and 68 is an abutment rib formed to protrude upward from the other side edge of the input port C63.

Reference numeral 69 denotes a synthetic resin lid for opening and closing the input port C63, which slides within the recess B62 by being supported within the slide grooves 64 and 65. That is, since the lid body 69 is housed in the recess B62 and is substantially flush with the circumferential surface of the drum 44, the circumferential surface of the drum 44 becomes substantially circular, and the balance effect of the drum 44 is improved. Moreover, the degree to which the detergent liquid is stirred by the lid body 69 is small.

A recess 70 is integrally formed along one edge of the lid 69 and has a length of at least 1/2 or more of the negative side edge. Reference numeral 71 designates a handhold portion pivotally supported within the recess 70, which has a locking claw 72 that locks on the locked claw 67 on one end side, and a handhold recess 73 on the other end side. A spring 74 normally biases the locking pawl 72 in the locking direction. 7
Reference numeral 5 denotes a regulating rib formed to protrude downward from the other side edge of the lid 69, and 77 and 78 denote a storage portion integrally recessed in the center of the upper surface of the lid 69, in which detergent and bleach are stored in advance. Laundry treatment agents such as detergents and fabric softeners are stored (79
80 is a lead weight attached along the other side edge of the lid 69, and 80 is a horizontal rib B integrally formed on the back surface of the lid 69, and the shape and protrusion are The direction is similar to that of the horizontal rib A54.

Then, the balancer 46 is fitted into the body 45 and screwed to the rear end of the body 45 when it comes into contact with the end face of the baffle 50, 51, 52, and then the rear plate 47 is screwed to the rear end of the body 45.
is applied to the rear side of the balancer 46 and screwed to the screw bosses 48 to complete the drum 44. At this time, the recess A57 of the balancer 46 fits into the recess B62 of the body 45, so that the balancer 46 is positioned and prevented from rotating.

Furthermore, the drum 44, with its support shaft 59.61, is connected to the drum rear bearing 19 and the drum front bearing 43.
It is rotatably supported. At this time, the support shaft 61
protrudes from the front wall 2b of the outside [2], and a drive pulley 81 is fixed thereto.

Now, 82 is the washing motor which is fixed to the plate 4 through the metal fitting A83, and 84 is the washing motor which is attached to the plate 4.
A dewatering motor is fixed to the motor via a metal fitting B85, and a brake drum 86 is fixed to the motor shaft. The washing motor 82 and the dewatering motor 84 are connected to each other via a pulley and a belt, respectively. Reference numeral 87 designates a brake lever whose base end is pivotally supported by the mounting bracket B85, and has a brake shoe 88. When the top cover 14 is opened, the brake shoe 88 is pressed against the brake drum by the bias of a spring (not shown). It is in pressure contact with 86. A wire 89 has one end connected to the brake lever 87 and the other end connected to the torsion coil spring 15. 90 is a guide and protection tube for the wire 89. and,
When the upper lid 14 is closed, the connecting portion 15a of the torsion coil spring 15 is displaced upward to pull the wire 89, rotate the brake lever 87, and separate the brake shoe 88 from the brake drum 86. Further, when the upper lid 14 is opened, the connecting portion 15a of the torsion coil spring 15 is displaced downward and the wire 8
9 is loosened, the brake shoe 88 comes into pressure contact with the brake drum 86 and applies braking force to the dewatering motor 84.

In order to open the lid 69, the handhold pushes down the recess 73 to release the locked state between the locking claw 72 and the locked claw 67, and then moves the lid 69 in the opening direction. At this time, the gravity of the weight 79 acts in the opening direction of the lid body 69 to assist the opening operation.
When the opening is completed, the recess 70 abuts against the abutment rib 68. Further, at this time, since the slide grooves 64 and 65 are formed in a U-shape, the sliding resistance of the lid 69 increases as the lid 69 is opened. Therefore,
Even if the lid body 69 is opened with force, the force is relaxed.

In addition, in order to close the lid 69, by sliding the lid 69 in the closing direction, the locking claw 72 is pushed up along the slope of the locking claw 67, and the locking claw 67 is pushed up.
Automatically locks at 7. At this time, if the lid 69 is not completely closed, the gravity of the weight 79 causes the lid 69 to close.
Since it opens immediately, it is easy to see that it is not closed.

In this embodiment, a weight 79 is provided on the other side edge of the lid body 69, but in addition to this, the thickness of the other side edge of the lid body B9 is set to one side edge. It may be made thicker (or the specific gravity of the other side line portion may be made larger).In short, the weight of the end of the lid body 69 in the opening direction may be made larger than the weight of the end of the lid body 69 in the closing direction.

Further, as a means for gradually increasing the sliding resistance of the lid body 69 in the opening direction, as shown in FIGS. 10 and 11,
The depth Pl of the slide groove 64 is in the opening direction of the lid 69 (
The depth P2 of the slide groove 65 may gradually become larger in the opening direction of the lid 69 (the direction of the arrow in the figure).

In such a configuration, during the washing process, the washing drum 44 is repeatedly reversed at low speed by the washing motor 82, and the laundry in the drum 44 is swept up by the baffle and falls from above to below. At the same time as washing is performed, the horizontal ribs A54..., horizontal ribs B80
It is scrubbed and washed by... Further, during the dewatering process, the washing drum 44 is rotated in one direction at high speed by the dehydrating motor 84, and the laundry in the drum 44 is dehydrated by centrifugal force. Also, during the drying process, the washing motor 82
As a result, the washing drum 44 is repeatedly reversed at a low speed, and drying air is introduced into the drum 44 from the air duct A17 and the suction port 58, thereby exchanging heat with the laundry in the drum 44. Also, at this time, the parantha 4
The ribs 49 provided on the screw holes 48 allow the drying air to
... is prevented from leaking out of the drum 44 through the gaps.

In any step, the horizontal ribs A54 and B80 provided in the drum 44 are used.
As a result, the laundry attached to the inner peripheral wall of the drum 44 is easily peeled off, and the laundry attached to the upper part of the drum 44 is quickly peeled off and falls downward.

(g) Effects of the Invention According to the configuration of the washing machine of the present invention, by forming the uneven surface on the back side of the lid, laundry becomes difficult to adhere to the back of the lid. Therefore, accidents such as laundry flying out when the lid is opened or laundry being caught between the lid and the drum can be prevented.

Moreover, the strength of the lid can be increased by the uneven surface.

[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 main parts cut away, and Fig. 5 is an exploded drum. 6 is a perspective view of the main part of the balancer, Fig. 7 is an exploded perspective view of the chest, Fig. 8 is an enlarged cross-sectional view of the main part of the drum when the lid is released, and Fig. 9 is a perspective view of the main part of the balancer.
The figure is a plan view of the chest, FIG. 10 is a sectional view taken along line AA' in FIG. 9, and FIG. 11 is a front view of the torso. 1...Frame, 2...Outer tank, 8...Clothing slot B, 4
4. Drum, 63. Clothing slot C169. Lid body,
80...Horizontal rib B (uneven surface).

Claims (1)

[Claims] (1) An outer tub is supported within the frame, a horizontal axis type washing drum is rotatably supported within the outer tub, and the laundry placed in the drum is washed by rotating the washing drum. The outer tub and the washing drum are each provided with an input port for loading laundry from above, a lid body is provided for opening and closing the input port of the drum, and an uneven surface is provided on the back side of the lid body. A washing machine characterized by forming.