JPH03284296A - Cover lock mechanism of washing and drying machine - Google Patents

Abstract

PURPOSE:To detect a lock mechanism of a cover always precisely, to close no switch when a lock operation is not surely made and to avoid a malfunction by providing a clothes charging cover, a switch for detecting the opening and closing of the cover and a lock mechanism of the cover and including an operation detecting switch of the lock mechanism. CONSTITUTION:When a lock lever 86 rotates in the direction of S, the opposite side of an axis operates a lock detecting switch 84 to detect the completion of a lock operation. Then, a basket is rotated to start a drying process. When the drying process finishes, the basket is rotated and returned to a perpendicular state. A magnet 85 is energized so that a plunger 96 is attracted to the direction of R. The lock lever 86 is also rotated about the axis to the direction of R to thereby release the engagement of a protruding portion 88 and the hole 92 of a cover 81. At this time, even when the energization of the magnet 85 is interrupted, a stopper 89 engages with the recessed portion of a heat cam portion so that the rotation of the lock lever 86 to the direction of S is prevented. Thus, a lock detecting switch 84 does not operate because the lock lever 86 is freed.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a lid lock mechanism for a washer/dryer.

[Conventional technology]

The conventional washer/dryer (hereinafter referred to as washer/dryer) was developed by Japanese Patent Application Publication No. 6
As described in Publication No. 1-196993, etc., the drum type is the mainstream, and the lid is generally front loading. This system is equipped with a lid open/close detection switch and a lid lock mechanism to prevent water leakage during washing.

In addition, the fully automatic washing machine is equipped with a switch that detects the opening and closing of the lid to prevent the spin-drying tank from rotating during spin-drying. The dryer is also equipped with a switch that detects whether the lid is open or closed, and controls the drum so that it does not rotate when the lid is open.

In either case, the lid does not have a locking mechanism, and the operation is controlled to stop when the lid is open (however, fully automatic washing machines only operate during spin-drying).

[Problem to be solved by the invention]

Among the conventional technologies mentioned above, the lid lock mechanism of the drum type washer/dryer can detect the opening and closing of the lid, but cannot detect the locked state of the lid. Therefore, even if the locking mechanism malfunctions, there is a possibility that the locking mechanism will move on to the next operation without functioning.

Furthermore, if a fully automatic washing machine or dryer only uses a lid opening/closing detection switch, a locking mechanism is required during the operation in order to perform the entire process from washing to drying.

An object of the present invention is to securely lock the lid.

[Means to solve the problem]

In order to achieve the above object, a lid opening/closing detection switch and a lid locking mechanism are provided, as well as a switch for detecting a locking operation.

[Effect]

The lock detection switch is a lock lever that locks the lid.
Since it is operated directly, it can always be detected on a one-to-one basis, and the switch will not turn on unless the locking operation is performed reliably, so there is no possibility of malfunction.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. 1 to 8.

3 to 5, a rotating base 4 is vibration-proofly supported within a box-shaped outer frame 1 made of a steel plate by a hanging rod 2 and a vibration-proofing spring 3. As shown in FIGS. The rotating base 4 is rotatably attached to the outer tank 6, and the rotating beam 5, like the rotating base 4, has one end rotatably attached to the outer tank 6, and the rotating beam 5 is rotatably attached to the outer tank 6. The other end of the beam 5 is attached to a rotation motor mechanism, which will be described later. Inside the outer tank 6, a basket 7 is provided which has a substantially circular cross-sectional shape and also serves as a washing tank, a dewatering tank, and a drying drum. A balance ring 8 is attached to the upper end of the basket 7 by means such as ultrasonic welding. The inner wall of the basket 7 is provided with a plurality of vertical rib-shaped glue lids 7a for picking up the cloth when the basket 7 is tilted for drying, and is also provided with a large number of vertical grooves 7b. A large number of dehydration holes 7c are provided in the vertical groove 7b. At the center of the inner bottom of the basket 7, a recess 7d is provided in which the pulsator 9 is rotatably mounted. A tub cover 10 is fixed to the upper end of the outer tub 6 to prevent laundry from falling between the outer tub 6 and the basket 7. A drain valve 1 is installed at the outer bottom of the outer tank 6.
1 is attached.

The rotation drive device 12 is attached to a base 13 made of a steel plate. The base 13 is formed into a box shape,
It is fixed 4 to the outer tank 7 by means such as screws.

One end of the internal drainage hose 15 is connected to the drainage valve 11, and the other end is opened onto a base 16 provided at the lower part of the outer frame 1. The base 16 has a plurality of legs 16 at its lower part.
a, Holding portion 16b of outer frame 1;

It has a water receiving portion 1-6c and a drain port portion 1.6d.

The water receiving portion 16c is configured to be inclined toward the center, and the water discharged from the drain hose 15 is drained from the drain port portion 16d.
is discharged from. Note that water from the drain port 16d is discharged to the outside via the external drain hose 20. Water receiver 1
A rib 16e is provided on the outer periphery of 6c to prevent water from overflowing.

Washing/dewatering motor 17. Drying motor 18° Washing speed reducer 19. The drying speed reducer 14 is attached to the bottom of the outer tank 6 via the base 13.

A rotating arm 22 is attached to the output shaft of the rotating motor 21, and one end of the rotating beam 5 is rotatably attached to the rotating arm 22. A shaft base 23 is provided in the outer tank 6 by means such as screws, and a beam receiver 24 is formed by extending a portion of the shaft base 23. The other end of the rotating beam 5 is rotatably supported by a locking portion 25 of a beam receiver 24 . The outer tank shaft 26 is attached to the shaft base 23, and the outer tank shaft 26 is rotatably supported by a bearing portion 27 of the rotating base 4.

The switch lever 40 is provided integrally with the outer tank @ 26, and the switch lever 40 is connected to a micro switch (H) 41. It is attached so as to engage with the microswitch (V) 42.

The duct 44 is for circulating hot air during the drying process, and one end of the duct 44 is connected to the exhaust section 6b of the outer tank 6, and the other end is connected to the exhaust section 6b of the outer tank 6.
It is airtightly connected to the air intake port 45a of the blower 45.

The central inner diameter portion 44a of the duct 44 is connected to
The size is increased to prevent washing water from entering the inside of the blower 45.

A nozzle 50 is installed inside the duct 44,
Water introduced via hose 49 is sprayed into duct 44 . That is, in order to prevent the circulation of air containing moisture from the clothes during the drying process, the hot air in the basket 7 is guided into the duct 44, and water is injected into the hot air passing through the duct 44. The moisture in the hot air is condensed and collected. One end of the blower guide 52 is attached to the exhaust side of the blower 45, and the other end is connected to the heating unit 51. Furthermore, the heating unit 51 has an in-tank exhaust port 53 .

In the above configuration, the washing process of washing and rinsing with water is carried out in the outer tank 6. Do this with the basket 7 upright.

Note that this position detection is performed when the switch lever 4o engages with the microswitch (V) 42.

Next, the drying process begins, and in this drying process, the basket 7 is tilted to a substantially horizontal position, as in a normal drum dryer. That is, this operation is performed by rotating the rotating arm 22 by the rotating motor 21 and moving the rotating beam 5, which is one element of a so-called link mechanism. Note that the rotation angle is detected when the switch lever 40 engages with the microswitch (H) 41. After the predetermined drying process has been carried out, the outer tank 6° and the basket 7 are returned to the upright position by the reverse operation.

A top cover 80 is provided on the upper part of the outer frame 1. The top cover 80 has an operation 9 display section 82 and a lid 81 whose one end is pivotally supported in the center and which can be opened and closed.

There is no problem with opening and closing the lid 81 when washing or rinsing, but
During dehydration, the washing/dehydration motor 17 is not energized because there is a risk of touching the basket 7 rotating at high speed with the lid 81 open. For this reason, a lid switch 93 is provided to detect whether the lid 81 is open or closed.

The lid switch 93 is connected to the lid 8 as shown in FIGS.
The arm portion 92 integrally protruding from the lid switch 93 engages with the lever 94 of the lid switch 93, the lever 94 is lifted, and the lid switch 93 is turned on.

8- When the lid 81 is opened, the lid 8 is opened centering on the hinge 95.
1 moves, the arm 92 rotates in the P direction, the lever 94 of the lid switch 93 goes down in the Q direction, and the lid switch 93
is in the OFF state, and opening/closing of the lid 81 can be detected.

On the other hand, during drying, the basket 7 is first tilted and rotated first, but the lid 81 must be closed in either state. Because basket 7
It is very dangerous while the outer tank 6 is rotating, and the side of the outer tank 6 is shown to the customer even during drying, which does not look good. Therefore, it is necessary to lock the lid 81.

The locking mechanism 83 of the lid 81 is provided on the front side of the top cover 80 as shown in FIGS. 1 and 2.

The locking mechanism 83 has a magnet 85 and a lock detection switch 84 disposed in a case 91, and a lock lever 86 is rotatably supported. A protrusion 88 that engages with the lid 81 is integrally formed at the tip of the lock lever 86, and includes a stopper 89 and a presser spring 87. Lock lever 8
6 engages a portion thereof with the plunger 96, and
The lock detection switch 84 is operated on the opposite side of the shaft. A heart cam portion 90 is integrally formed in a part of the case 91.

To explain the operation of the lock mechanism 83, first, before starting the drying process, the lid switch 93 detects the open/closed state of the lid 81, and if it is in the closed state, the magnet 85 is energized to attract the plunger 96 in the R direction. Since the plunger 96 and the lock lever 86 are partially engaged, they rotate about the shaft 98 in the R direction. At this time, the stopper 89 of the lock lever 86 is disengaged from the recess of the heart cam portion integrally provided in the case 91. A spring is contained in the magnet 85, and a plunger 96 is disposed to project in the S direction, and the lock lever 86 rotates in the S direction when the magnet 85 is de-energized. At this time, the protrusion 88
engages with a hole 92 provided in the lid 81 to lock the lid 81. Further, when the lock lever 86 rotates in the S direction, the opposite side of the shaft operates the lock detection switch 84, and it is detected that the locking operation is completed.

Then, the basket 7 is rotated and the drying process begins.

Next, when the drying process is finished, rotate the basket 7,
Return basket 7 to vertical position.

Then, the magnet 85 is energized to attract the plunger 96 in the R direction, and the lock lever 86 is also rotated in the R direction about the axis to release the engagement between the protrusion 88 and the hole 92 of the lid 81. At this point, even if the magnet 85 is de-energized,
The stopper 89 and the recessed portion of the heart cam portion engage to prevent the lock lever 86 from rotating in the S direction. Further, the lock detection switch 84 does not operate because the lock lever 86 escapes.

In this way, the lid 81 can be opened.

〔Effect of the invention〕

According to the present invention, since the lid is closed during the drying process and the white spot detection can be performed integrally with the locking operation, it is possible to detect and notify malfunction of the lid due to lock lever malfunction, magnet locking, etc. be able to.

[Brief explanation of the drawing]

FIG. 1 is a plan view of a locking mechanism according to an embodiment of the present invention, and FIG.
The figure is a side view of the locking mechanism, Figure 3 is a vertical cross-sectional view of the washer/dryer,
Figure 4 is a diagram of the internal structure from the back, Figure 5 is a diagram of the internal structure different from Figure 3 seen from the right side, Figure 6 is a plan view of the washer/dryer, and Figures 7 and 8 are the lid switch. FIG. 81... Lid, 83... Lock mechanism, 84-... Lock detection switch, 85... Magnet, 86... Lock lever 188... Projection. Figure 9 Procedural amendment (method) % formula % 2. Name of the invention Lid lock mechanism for washer/dryer 3° Relationship to the case of the person making the amendment Patent applicant name (510) Hitachi, Ltd. 4, Agent residence ( Address: 103) Nisshin Building 5, 2-9-5, Kayabacho, Nihonbashi, Chuo-ku, Tokyo Date of amendment order: July 31, 1990 (Shipping port) 6
, ``Brief explanation of drawings-1, column 7, contents of amendment'' of the specification subject to amendment

Claims (1)

[Claims] 1. A washing/drying machine that performs washing, rinsing, spin-drying, and drying in a washing/drying tub, the washing/drying machine having a lid for loading clothes, an opening/closing detection switch for the lid, and a locking mechanism for the lid. , A lid locking mechanism for a washer/dryer, characterized in that a switch for detecting operation of the locking mechanism is provided.