JPS612222A - Motor type time switch - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention aims to solve the following problems. This relates to a motor-type time switch used to operate a motor for a desired period of time.

(Prior art) In this type of motorized time switch, the cam for the washing time switch is operated by its own timer motor, and the cam for the dehydration time switch is operated by its own timer motor. There is something. This type of device requires two timer motors, which not only increases the size of the device, but also increases the cost of the time switch.0 (Problem to be solved by the invention) Except for the problem, the washing time switch cam and the dehydration time switch cam can each be operated for an arbitrary set time, and such operations can be performed using a single timer motor, making it an inexpensive method. The present invention aims to provide a motor-type time switch that can be used as a motorized time switch.

The configuration of the present invention is as follows.

(Means for Solving the Problems) The present invention takes the measures as described in the claims above, and its effects are as follows.

(Function) By manually turning each of the camshafts for the washing and dehydration time switches by an angle corresponding to the desired time period, energy is stored in the springs attached to the camshafts. After that, when you release your hands from those shafts, those shafts are rotated in the return direction by their respective springs. In this case, their rotational speeds are controlled to predetermined speeds by one timer motor that is connected to each other via a gear train. Then, when the set time period for each camshaft has elapsed,
A switch driven by each cam is activated. In the above case, if the set time period for either cam ends first,
The cam stops when its set time period expires. In this case, the unidirectional rotation transmission mechanism associated with the stopped cam cuts off the connection between the cam and the timer motor. Therefore, the timer motor stabilizes only the rotating speed of the cam that is still in operation (Embodiment) The drawings showing the embodiments of the present application will be described below. In the time switch A shown in FIG. 7 to FIG.
3a and the return direction Ob.

3 shows a cam for a washing time switch, which is exemplified as a first cam attached to the main shaft 2 so as to be integrally rotatable therewith. This cam 3 consists of two cams aa and 3b, and a stop portion 4 is provided around the cams aa and 3b.
Equipped with. Reference numeral 5 denotes a washing switch, which is brought into contact with the cam 3 so that it can be driven. As shown in FIG. 6, this switch 5 consists of a main switch 5a, an auxiliary switch 5b, and another notification switch 5C that operate in conjunction with each other. Reference numeral 6 denotes a mainspring attached to the main shaft 2, which urges the main shaft 2 in the return direction 43b. Reference numeral 7 denotes a stopper bin attached to the main shaft 2. By coming into contact with a stopper (not shown) provided on the case L, the main shaft 2 is brought into the state shown in FIG. 7, that is, the stop portion 4.
The main shaft 2 is prevented from rotating excessively in the return direction 43bK beyond the state in which the switch 5 is close to the main shaft 2. 8 is a first gear train connected to the main shaft 2 (including the first gear 8a attached to the main shaft 2), and a one-way rotation transmission mechanism 9 (hereinafter simply referred to as a one-way mechanism) t3 is located in the middle. It is an intervention. Next, the sum is a second main shaft, which is a main shaft for the dehydration time switch shown in FIG. The power of the dehydration time switch is illustrated as the second cam attached to the main shaft ball! , and a stop portion 14 is provided on a part of its periphery. Reference numeral 15 denotes a dewatering switch, which, as shown in FIG. 6, consists of a main switch 15a and an auxiliary switch 15b, which operate together in conjunction with phase 7qH. 16 is the mainspring, 17 is the stopper pin, and 18 is the second gear train (
It also includes the first gear 18a which is f1 placed on the main shaft. ) and 19 are one-way rotation transmission mechanisms, which have the same structure as those shown by the reference numerals 6-9, and therefore, redundant explanations will be omitted. Next, η is a reversing cam rotatably provided on the shaft portion 4 provided in the case 1, and two cams 22 are integrally formed.
It consists of a and 22b.

This cam B is connected to the middle part of the tooth train 8, and the tooth train from the middle part to the rotation shaft 5, which will be described later, is connected to a third tooth train (gear 22C integrally formed with the cam n). (Including.)
It is now used as a. As a result, this cam ρ
However, the cam 3 also rotates at a constant speed at an extremely high speed. The phantom is a reversing switch that can be moved by the cam ρ and is made up of two reversing switches Zlla and Z(b). It is designed to move.

5 indicates its rotation axis. The rotation shaft 5 has the gear train 8
One end and one end of the tooth gear train are connected respectively. As is clear from the drawing, in the time switch A having the above configuration, the cams 3, 13, 22 and the timer motors are
-r are arranged side by side on the same plane, and the gear train 8.18 is arranged on another plane, so that they are stacked in two stages.

The time switch A having the above structure can be installed and used in a very narrow space in a well-known washing machine, as shown in FIGS.

That is, in Fig. 1, Fig. 5', η is the casing of the washing machine,
79 is a washing tank, 79 is a dehydration tank, 3 is a dehydration motor, 31 is a dehydration basket, and 32 is an operation panel, to which the time switch A is attached.

Field and force are knobs, and the first main axis 2 and the second main axis ν are respectively
They are installed on the machine so that they can be operated manually. A well-known select switch for water flow selection is shown.

Next, the time switch A with the above configuration is the sixth one in the washing machine.
It is used with the circuit connections shown in the figure. In FIG. 6, rice is supplied from a conventional commercial power source through a conventional plug from an electrical outlet. The blade is a washing motor,
As is well known, it can be rotated in forward and reverse directions. The blade represents a buzzer, which is an example of an alarm, and the shame represents a lid switch in a dehydrator.

In addition, in the above circuit, the selection switch A and the current supply path to the washing motor blades are two reversing switches Ba and 23b.
By selectively switching only one or both of them in parallel, it is possible to select a longer or shorter supply time of the forward current and reverse current that are alternately and intermittently supplied to the washing motor. ing. As a result, the strength of the water flow can be selected in the washing tank path.

Next, the operation of the time switch A having the above configuration and the associated operation of the washing machine will be explained. First, a case will be explained in which it is desired to perform washing in the washing tub and dewatering in the dehydrating tub, respectively.

In this case, operate the knob to rotate the spindle 2 in the setting direction 4In until the desired washing time is obtained, and operate the knob to set the spindle U until the desired dehydration time is obtained. Rotate in direction 44 fi. As a result, a biasing force is accumulated in each mainspring 6.16 for returning each main shaft 2, 12 to the return direction 43b, 44b, respectively. In this case, the rotational force for rotating the main shafts 2, 12 in the setting directions 43a, 44a is blocked by the one-way mechanism 9.10 and is not transmitted to that side of the timer motor. Also, the main switch and auxiliary switch 5a for washing and dehydration are activated by the above operation.

5 b , 15 a , and 15 b are closed as shown in FIG. 1θ. As a result, current flows through the circuit shown by the thick solid line in FIG. 10, and the current motor, washing motor, and dewatering motor operate, respectively. During this operation process, the main shaft 2. ] 2 is a mainspring attached to each 6.
16 in the return directions 43b and 44b. When these main shafts are rotated in such a direction, each one-way mechanism 9, 19 is connected to each other.
The same direction 43b of the main shafts 2 and 12.

The rotation toward 44b is controlled by the timer motor U. That is, the return direction 43b of the main shafts 2, 12,
44b is rotated at a speed corresponding to the rotation speed of the rotation shaft 6 of the timer motor, and each main shaft 2, 12 rotates in the return direction at a respective predetermined speed. Also, in this case, the reversal force 1,
n is also rotated in conjunction, and the reversing switches zaa and zzb are respectively reversed. As a result, as is clear from FIG. 7θ, the washing motor A performs a well-known reverse operation, and the dewatering motor J continuously operates.

As the operation continues as described above, when the time limit set on the main shaft 2 elapses, the switch 5 comes into contact with the stop part 4 of the cam 3, and the main switch 5a and the auxiliary switch 5
Both are opened and the operation of the washing motor is stopped. In this case, although a detailed explanation will be omitted, the switch 5C is temporarily closed and the buzzer (support) sounds like the known time switch, before the main switch 5a and the auxiliary switch 5b for washing are opened.

Both switches 15b open and the dewatering motor stops operating.

In the above case, if the time limit set for either spindle 2 or 12 ends first, that spindle will stop due to the action of the stopper pin 7 or 17, but the constant speed rotation of the other spindle will remain as it is. be done. To explain this point in detail, in the above case, the timer motor continues to be energized via the main switch and auxiliary switch associated with the cam on the side where the set time has not elapsed, and the timer motor continues to operate. . In addition, in this case, even if the cam on the side whose set time period expires first stops, the transmission of rotational force from the timer motor to the main shaft on that side is cut off at the related one-way mechanism, and the rotational force is not transmitted to the motor. It will not be a burden. As a result, the main shaft and cam on the side where the set time period has not yet expired will continue to operate stably.

Next, if you want to operate only the washing machine without operating the dehydrator, operate the knob 3:3 to set only the main shaft 2. As a result, only the path shown by the thick solid line in FIG. 1 is energized, and only the washing motor and the timer motor operate. In this case, as shown in Fig. R, the rotation of the timer motor U is transmitted only to the path indicated by the thick curve in Fig. R, and only the main shaft 2, cam 3, and cam η rotate at a constant speed. (Transmission of the rotational force to the main shaft ν is interrupted by the one-way mechanism 19.) If the operation continues in this state and the set time period ends, the switch 5 will turn the cam 3 on as in the previous case. A switch 5a faces the stop part 4.

5b opens and the washing machine stops operating.

Next, if you want to operate only the dehydrator without operating washing machine #J, operate the knob to set only the main shaft ν. As a result, only the path shown by the thick solid line in FIG. 72 is energized, and only the timer motor and the dewatering motor (9) are operated. In this case, the rotational force of the timer motor example is transmitted only to the path shown by the large broken line in FIG. 9, and the main shaft 12 and cam 13 rotate at a constant speed, while the main shaft 2 and cam 3 remain stationary. When the set time period ends in this state, the switch 15 comes into contact with the stop part 14 of the cam 13,
(Effects of the Invention) As described above, in this invention, when it is desired to perform washing and dehydration respectively, the main shaft 2 for the washing time switch and the main shaft for the dehydration time switch are moved in the setting directions 43s and na, respectively. By turning the main shafts 2 and 12 by an angle corresponding to the desired time and storing energy in the mainsprings 6 and 16 attached to each, the main shafts 2 and 12 are rotated in the return direction by the energy, and the main shafts 2 and 12 are The rotational speed of each main shaft 2, 12 is controlled to a predetermined speed by means of a timer motor connected to the main shaft 2゜ν through a gear train 8.18, and a cam attached to each shaft 2, 12. 3.13), the laundry switch, rji 5, and spin-drying switch 15, which are operated respectively, can be activated after the above-mentioned desired time period ends, and the washing and spin-drying can be carried out for each desired time period. be.

Moreover, in the above case, if the set time for washing is longer than the set time for spin-drying, and the set time for spin-drying ends while the timer motor is in operation, one-way rotation transmission is performed using a gear train. The mechanism 19 can prevent the rotation of the timer motor from being transmitted to the main shaft, and has the advantage that only the washing time switch main shaft 2 can be operated independently.

On the other hand, in the opposite case, the one-way rotation transmission mechanism 9 interposed in the gear train 8 can block the rotation of the timer motor train from being transmitted to the main shaft 2. It has the advantage that only the main shaft ν can be operated independently.

The above means that one timer motor can play the role of controlling two individually set time limits, and even if the timer motor has two time setting functions, only one timer motor can control the time limits. This has the effect of making it possible to provide the device at a low cost and downsizing the device.

Furthermore, in the above case, even if the two main shafts 2, 12 are controlled by one timer motor train, each main shaft 2.12 is given rotational force by an individually attached mainspring 6.16. The driving force of the timer motor train only needs to be small (because it does not put a burden on the motor train), and there is also the effect that it is possible to use a small timer motor.

[Brief explanation of the drawing]

The drawings show an embodiment of the present application, and FIG. 1 is a front view of the time switch with the case opened, and FIG.
Figure 3 is a sectional view taken along line 1-1, Figure 3 is a sectional view taken along 9 to 9 are explanatory diagrams of the operation of the timer, and FIGS. 1O to 72 are explanatory diagrams of the operation of the washing machine circuit. 2...Main shaft for washing time switch, 3°°. ° Washing time switch cam, 5... Washing switch, 8... Tooth gear train, 9... One-way rotation transmission mechanism, Hill... Spindle for spin-drying time switch, 13... Spin-drying time Switch cam, ■... dehydration switch, slide...
Tooth gear train, 19...One-way rotation transmission mechanism, Timer...Timer motor, Plate...Washing motor, Oh...Dehydration motor. Figure 4V Figure 5Figure 6Figure 10Figure 11Figure 12Figure 7Figure 8Figure 9

Claims (1)

[Claims] A washing time switch cam is rotatably attached to the main shaft for the washing time switch, which can freely rotate in the setting direction and the return direction, and a washing switch is attached to the cam so as to be movable; One end of a gear train having a one-way rotation transmission mechanism is connected to the main shaft, and the other end of the gear train rotates the main shaft at a constant speed in a return direction via the gear train. Connected to the rotation shaft of the timer motor,
A cam for the dewatering time switch is rotatably attached to the spindle for the dewatering time switch, which can freely rotate in the setting direction and the return direction, and a dehydrating switch is attached to the cam so as to be movable, and further One end of a gear train having a one-way rotation transmission mechanism is connected to the main shaft, and the other end of the gear train rotates the main shaft at a constant speed in a return direction via the gear train. In a motor-type time switch connected to the rotating shaft of a timer motor, energy is stored in both main shafts by rotating each main shaft in the setting direction, and the energy is used to rotate each main shaft in the return direction. A motor-type timer characterized in that a mainspring that exerts a biasing force on each main shaft is individually attached to each main shaft, while the other ends of each gear train are respectively connected to the rotating shaft of one timer motor. switch.