JPH0513352Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field The present invention relates to a dehydrating washing machine equipped with a container for charging laundry treatment agents such as finishing agents.

(b) Conventional technology Conventionally, a washing machine that executes each process of washing, rinsing, and dehydration according to a program was developed in the Japanese Patent Publication No. 61-1160.
It is shown in the publication No. This washing machine is equipped with a finishing agent charging container above the washing and dehydrating tank, and the finishing agent is charged into the tank using the centrifugal force of the intermediate dehydration during the rinsing process.

A finishing agent inlet is formed in the upper part of the input container so that the container does not have to be removed when storing the finishing agent. Therefore, the loading container may be located at the rear (towards the back), and in this case, it is difficult to pour in the finishing agent for the next wash, and the container must be removed. There were cases where the finishing agent inside the container spilled due to the impact during installation.

(c) Problems to be solved by the invention The present invention facilitates the operation of pouring a laundry treatment agent into a laundry treatment agent input container in a dehydrating washing machine.

(d) Means for Solving the Problems The dehydrating washing machine of the present invention has an outer tub in which a washing and dehydrating tank is installed, a washing treatment agent loading container attached to the top of the dehydrating tank, and the loading container. an inlet for injecting the laundry treatment agent into the input container formed in a cover that covers the washing treatment agent, a rotational drive device for the dehydration tank, a braking device for rotation of the dehydration tank, and switching the operation of the driving device and the braking device. and a position detection device that detects the position of the input container in the low-speed circuit of the dehydration tank after the washing program ends,
The control device is characterized in that it has means for instructing the braking device to stop the input container at a location other than the rear, based on an input signal from the position detection device.

(e) Operation After the washing program is completed, the dehydration tank stops based on a signal from the position detection device, and the charging container stops at a location other than the rear, that is, from the front. This results in
At the time of the next washing, the work of injecting the laundry treatment agent into the input container becomes easy.

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

1 is a machine frame, inside which an outer tank 2 is elastically suspended and supported. Above the machine frame 1 is an operation section 4 that houses electrical components such as operation switches and a control board 3.
is listed. An inner tank 5 serving as a washing and dehydrating tank is disposed within the outer tank 2. Reference numeral 6 indicates a rotary blade disposed at the bottom of the inner tank 5, and 7... indicates dewatering holes bored in the side wall of the inner tank 3. Reference numeral 8 denotes a drive motor, which is connected to the rotary blade 6 and the inner tank 5 via a power transmission mechanism 9, and rotates the rotary blade 6 during washing, and rotates both the rotary blade 6 and the inner tank 5 at high speed during dewatering. let Now, reference numeral 10 denotes a balance ring, which is placed and fixed on the upper end of the inner tank 5 so that its outer peripheral side wall is in contact with the inner peripheral edge of the inner tank 5.
Reference numeral 11 denotes a finishing agent charging container detachably mounted in a recess 12 provided on the inner surface of the balance ring 10.

Here, the input container 11 will be explained in more detail based on FIGS. 3 and 4.

The input container 11 is divided into two storage chambers (a first storage chamber 13 and a second storage chamber 14) with an open top surface. In order to attach the charging container 11, a fitting hole 16, which extends inwardly from the lower end of the recess 12, has fitting protrusions 15, 15 protruding from both sides of the bottom thereof.
16 and rotated upward, so that the engaging piece 17 protruding from the outer peripheral side wall is elastically engaged with the engaging hole 18 formed in the recess 12. To remove it, do the opposite.

When the charging container 11 is attached, the outer wall 13a of the first storage chamber 13 of the balance ring 10 is formed by centrifugal force.
A first holding chamber 20 is integrally formed to temporarily store the finishing agent overflowing the upper end, and to transfer the finishing agent by its own weight from the gutter-shaped outlet 19 to the second storage chamber 14 when the centrifugal force disappears. There is. Also, the second
This storage chamber 14 is formed on the outside of the storage chamber 14 by centrifugal force.
A second holding device temporarily stores the finishing agent overflowing from the upper end of the outer wall 14a of the tank, and releases the finishing agent by its own weight from the supply port 21 through the supply path 22 into the space between the inner and outer tanks 5 and 2 when the centrifugal force disappears. A chamber 23 is integrally formed.

Further, in the upper part of the recess 12, first and second storage chambers 13 and 14 of the input container 11 installed are provided.
A cover 24 covering the top opening of is integrally extended,
An injection port 25 for injecting the finishing agent into the storage chamber 13 is provided above the first storage chamber 13 in the cover 24 .

Thus, the washing machine of this embodiment performs the rinsing process twice after the washing process (however, the second time is always a sample rinse), and finally performs the dehydration process. During the washing process, the finishing agent in the first storage chamber 13 is transferred to the outer wall 13 as shown by arrow A by centrifugal force during the first intermediate dehydration after washing and before rinsing.
a overflows and moves into the first holding chamber 20, and when dehydration is completed, moves from the gutter-shaped outlet 19 into the second storage chamber 14 as shown by arrow B, and during the first rinsing process, it moves into the second storage chamber 14. 14.

During the intermediate dehydration after the first rinsing process and before the second rinsing process, the finishing agent overflows the outer wall 14a as shown by arrow C due to centrifugal force and moves into the second holding chamber 23, where it is dehydrated. When finished, arrow D
It is discharged between the inner and outer tanks 5 and 2 through the supply port 21 and the supply path 22 as shown in FIG. It is then diluted and penetrated into the clothing during the second rinse step.

Next, the power transmission mechanism 9 will be explained based on FIGS. 5 to 7.

A mounting base 26 is screwed to the bottom of the outer tank 2, and the inner tank 5 is attached to the center of the mounting base 26.
A case 29 of an upper bearing 28 that pivotally supports a drive shaft 27 is integrally molded. The drive shaft 2
The case 31 of the lower bearing 30 of No. 7 is screwed onto flanges 32, 32 formed on both sides of the mounting base 26. In addition, the drive motor 8, the drain valve 33, and a solenoid 35 for opening and closing the drain valve 33 are screwed onto the flange portions 32, 32 via a connecting rod 34. 36 is the drive shaft 27
This is a clutch device that controls the transmission of power to.

A brake drum 37 is fixed to the drive shaft 27, and a brake band 38 having a brake lining attached to the inside is pressed against the outer periphery of the drum 37 by its own elasticity. One end of the brake band 38 is a bent piece bent outward. Reference numeral 39 denotes a brake lever, which is pivotally supported by a support shaft 41 hanging from a lever mounting flange 40 bent on the lower bearing case 31, and the bent piece is attached to one end of the lever 39 during braking. A square-shaped through hole 42 is formed into which the hole 42 fits, and the other end engages with a protrusion 43 provided on the connecting rod 34 that operates the drain valve 33, and is constantly biased toward the brake drum 37 by a spring 44. A bent piece is fitted inside 42. Then, during dehydration, the brake lever 39 is rotated via the connecting rod 34 against the bias of the spring 44 by the excitation of the solenoid 35, and the bent piece is removed from the through hole 42.

When the dewatering is finished, the excitation of the solenoid 35 is cut off, the drain valve 33 is closed, the brake lever 39 is rotated by the spring 44, and the bent piece at one end of the brake band 38 is inserted into the through hole 42.
It fits into the stopper 45 and applies a brake to the brake drum 37, that is, the drive shaft 27.

Now, in FIG. 2, reference numeral 46 denotes an outer tank cover attached to the upper end of the outer tank 2, and a reed switch 47 is attached to the rear back surface of the outer tank cover 46. On the other hand, a magnet 48 is located on the upper surface of the balance ring 10 on the rear side of the input container 11.
The reed switch 47 is closed when the magnet 48 approaches the reed switch 47, and opens when the magnet 48 moves away from the reed switch 47. The opening/closing signal of the reed switch 47 is inputted to the control device 50 in the operating section 4 via the lead wire 49.

The control device 50 is mounted on the control board 3, and the control mechanism of the washing machine centered on this control device 50 will be described below.

FIG. 8 shows a block circuit diagram of the control mechanism of the washing machine centered on the control device 50, in which 51 is a clock control that controls the frequency division ratio of the clock output from the clock generator, and 52 is the counter pulse input. A timer counter that has a comparator that compares the contents of a count register that is incremented every time the contents of the modulo register are used and outputs a match signal when they match, and 53 is an interrupt control that controls the selection of interrupt terminals and the acceptance and disabling of interrupts. , 54 is a serial interface for exchanging data with an external circuit, 55 is a program counter that holds program address information,
56 is an arithmetic logic unit that performs arithmetic processing such as binary addition, logical operation, increase/decrease, comparison, etc., and bit processing;
7 is a carry flag that is set by carrying from the most significant bit when an operation instruction is executed; 58 is an accumulator that stores operation results and exchanges data with memory, I/O ports, registers, etc.; 59 is a program memory for storing programs, data tables, etc.; 60 is an instruction recorder for decoding instructions; 61 is a general-purpose register; 62 is a stack pointer that holds information on the top address of the stack in the data memory;
63 constitutes an oscillation circuit together with an external circuit 64,
A clock signal generator that oscillates the clock, 65 a standby control that stops the clock,
66 is a data memory for storing processing data, etc.; 67 and 68 are input port buffers that relay input from an input key circuit 69 consisting of various operation buttons and a top lid safety switch 70 that is linked to opening and closing of the top lid; 73 and 71; consists of a group of LEDs
This is an output port latch buffer that relays output to the LED drive circuit 74, buzzer circuit 75, and load drive circuit 76. The load drive circuit 76 includes drive motor left and right rotation circuits 77, 78,
Controls the operation of supply and drain valve drive circuits 79 and 80.

81 is a power supply circuit that supplies voltage to the control device 50, 82 is a reset signal generation circuit, and 83 is a power frequency synchronous output generation circuit. A water level signal from the water level detector 84 and an open/close signal from the reed switch 47 are also input.

The operation based on such a configuration will be explained according to the flowchart of FIG.

When the entire washing program of washing, rinsing, and spin-drying is completed, the control device 50 releases the brake and energizes the drive motor 8 intermittently at a cycle of 0.5 seconds ON and 1.0 seconds OFF. Then, the inner tank 5 starts rotating at an extremely low speed. During this rotation process, the magnet 48 is connected to the reed switch 47.
When the reed switch 47 is closely opposed to the reed switch 47, the reed switch 47 is closed, and this closing signal is input to the control device 50. Then, the control device 50 immediately cuts off the power to the drive motor 8 and simultaneously cuts off the excitation of the solenoid 35 to apply a brake to the inner tank 5. Since the inner tank 5 was rotating at an extremely low speed, when braking was applied, after a slight rotation of inertia,
Stop immediately. Therefore, in this state, the input container 11 is located at the front (on the near side).

The point at which the braking is applied may be determined based on the expected load condition and braking ability, but
1 is located at least forward of the position P-P' in FIG. 2 (on the left side in the figure), the finishing agent injection operation is easy and there is no need to take the trouble to remove the charging container 11.

In this embodiment, a magnet 48 and a reed switch 4 are used as a position detection device for the inner tank 5 (input container 11).
7 was used, but a Hall element or a photoelectric switch may also be used.

(g) Effects of the invention In the dehydrating washing machine of the invention, after the washing program ends, the container for loading the laundry treatment agent is always stopped relatively near the front of the dehydration tank, so that the treatment agent is not poured into the container. This makes injection work easier and improves usability.

[Brief explanation of drawings]

Fig. 1 is a flowchart showing the operation of the dehydrating washing machine of the present invention, Fig. 2 is a cross-sectional view of the internal mechanism of the same main part, Fig. 3 is an exploded perspective view of the finishing agent injection device, and Fig. 4
Figure 5 is a sectional view of the main part of the power transmission mechanism, Figure 6 is a bottom view of the same, Figure 7 is a perspective view of the brake lever, and Figure 8 is a block circuit diagram of the control mechanism. be. 2...Outer tank, 5...Inner tank (washing and spin-drying tank), 8
... Drive motor, 36 ... Clutch device (8, 3
6: Drive device), 9... Power transmission mechanism (control device), 11... Input container, 24... Cover, 25
...Inlet, 47...Reed switch, 48...
Magnets (47, 48: position detection device), 50... control device.

Claims (1)

[Scope of utility model registration request] an outer tank with a washing/dehydration tank installed therein; a container for charging a laundry treatment agent attached to the top of the dehydration tank; and an injection port for the laundry treatment agent into the container formed on a cover that covers the container. a rotational drive device for the dehydration tank; a braking device for rotation of the dehydration tank; a control device for switching and controlling operations of the drive device and the braking device; a position detection device that detects the position of the input container, and the control device instructs the braking device to stop the input container at a location other than the rear, based on an input signal from the position detection device. A dehydrating washing machine characterized by having means.