JP2001116059A - Manually switching device for automatic apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a manually switching device for an automatic apparatus for enhancing operability by constituting switching of automatic and manual operation out of a simple mechanical clutch. SOLUTION: A gear 14 is rotatably journalled by a driving shaft 11 so as to return from a rotary position by motor driving by a return spring 16, this gear is provided with a clutch recessed groove 14b for rotatably driving a driving shaft by driving a projecting part 11a arranged on the driving shaft, the clutch recessed groove is provided with a non-interlocked area of a prescribed range to the projecting part, and while a manual rotary shaft 13 is arranged for returning to an unoperated rotary position from an operation rotary position by manual operation by interlocking with a neutral holder 19 returning by a return spring 20, the manual rotary shaft is integrally connected to the driving shaft, the driving shaft is automatically rotated by motor driving, the manual rotary shaft is rotated by manually operating a knob 18, and the driving shaft is manually operated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a manual switching device for switching an automatic apparatus controlled by a motor drive to a manual drive to control the automatic apparatus. The present invention relates to a manual switching device for performing the above operation.

[0002]

2. Description of the Related Art Most toilets are provided with an automatic washing machine for washing with water after use. In this automatic washing machine, a motor is started in response to a control signal generated by pressing a push button. The running water valve is opened by the motor drive to discharge water into the toilet.

[0003] This type of automatic washer also has a manual operation knob, and has a manual operation mechanism for opening a water flow valve and discharging water by operating the operation knob.

[0004]

The above-mentioned automatic cleaning device is provided with an electromagnetic clutch for switching between automatic driving by motor driving and manual driving by manual operation.

That is, the motor driving system is connected during automatic driving, and the motor driving system is disconnected during manual driving, and the valve can be manually opened.

Therefore, the conventional automatic washer requires an electromagnetic clutch and its attached parts, so that the number of parts is increased, there is a problem in reducing the cost of the product, and the power consumption of the electromagnetic clutch is reduced. The improvement is also desired.

In view of the above-mentioned circumstances, the present invention provides a manual switching device for an automatic device which has a low cost and has improved operability by configuring automatic and manual switching by a simple mechanical clutch. The purpose is to do.

[0008]

SUMMARY OF THE INVENTION In order to achieve the above-mentioned object, the present invention provides an automatic device in which a gear provided on a control shaft is driven by a motor and operation and stop are controlled by rotation of the control shaft. In the manual switching device, the gear is rotatably supported by a control shaft so as to return by a spring force from a rotation position by motor drive, and the gear has an interlocking portion provided on the control shaft. A drive unit that rotates the control shaft in conjunction with the drive unit is provided, and the drive unit is provided with a non-interlocking area within a predetermined range with respect to the interlocking unit. A manual rotating shaft for returning by a spring force is provided at the position, and this manual rotating shaft is integrally connected to the control shaft. The gear is rotated by motor driving, and the gear is rotated by the driving unit. The control shaft is rotated in conjunction with the Axis is rotated by manual operation, proposes a manual switching device of an automatic device, characterized in that the arrangement for rotating the control shaft rotates the interlocking part in the breakaway regions.

In the manual switching device of the present invention, the manual rotating shaft is connected to the control shaft so as to slide without rotating, and the manual rotating shaft, which has been operated and rotated, slides. A structure may be provided in which a holding mechanism for holding at the moved position is provided, and the operation manually operated is continued.

[0010]

In the manual switching device described above, when the manual rotating shaft is rotated by manual operation, the control shaft is rotated integrally with the manual rotating shaft to operate the automatic equipment.

In the case of this manual operation, the interlocking portion of the control shaft rotates in the non-interlocking region of the driving portion provided on the gear. When the manual operating force is released, the manual rotating shaft returns by the repulsive force, so that the control shaft returns and rotates, and the automatic device stops.

When the motor is driven by an automatic operation, the rotation of the gear linked to the motor causes the drive unit to idle during the non-interlocked region, and then drives the interlock unit. Therefore, the control shaft rotates according to the rotation of the gear, and operates the automatic device.

When stopping the operation of the automatic equipment, the power supply to the motor is stopped. In this case, the gear is moved back by the spring force, and the driving portion of the gear moves the interlocking portion of the control shaft,
Return and rotate the control shaft. When the gear rotates backward by the spring force, the motor reversely rotates without power supply.

If the configuration is such that the manual rotation shaft is slid and moved at the operation position and held, the operation of the automatic equipment can be continued even when the manual operation is released. In this case, the operation of the automatic device can be stopped only by returning the manual rotating shaft.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of the present invention applied to a flush valve driving device for an automatic washing machine provided in a toilet will be described with reference to the drawings. 1 is a cross-sectional view of a running water valve driving device having a manual switching device, FIG. 2 is a partial cross-sectional view of the driving device taken along line AA in FIG. 1, and FIG. 3 is BB in FIG. FIG. 3 is a partial cross-sectional view of the driving device, taken along a line.

In these drawings, reference numeral 11 denotes a drive shaft (control shaft) for driving a flowing water valve of the automatic cleaning device.
Numeral 1 is rotatably supported on the middle of the case 12 on a case 12 and one end thereof is connected to a manual rotating shaft 13. The drive shaft 11 is rotated in one direction to perform valve driving for cleaning urine use, and is rotated in the other direction to perform valve driving for cleaning stool use.

Reference numeral 14 denotes a kind of clutch gear.
4 is rotatably supported by the drive shaft 11 described above.
The gear 14 is configured to transmit the output of the motor 15 via a reduction gear and rotate the gear. The gear 14 advances and rotates according to the forward rotation of the motor 15, and is returned to the initial position by a return spring. Retreat or move.

Further, the gear 14 has a shaft cylinder 1
4a is provided with a clutch groove 14b formed in a substantially semicircular shape. The clutch concave groove 14b has a thin convex portion 11a provided on the outer surface of the drive shaft 11 therein, and when the clutch concave groove 14b rotates, the convex portion 1a is formed by the groove edge.
1a is pushed to rotate the drive shaft 11.

The gear 14 is provided with an arc-shaped spring receiving portion 14c as shown in FIG. The spring receiving portion 14c receives the first return spring 16 with a fixed spring receiving portion 12a disposed inside in an arc shape.

That is, one end 16a of the first return spring 16 is attached to one end of each of the spring receiving portions 12a and 14c.
The other arm 16b of the first return spring 16 is hooked to the other end thereof, so that the spring receiving portion 1
A reverse power is applied to the gear 14 provided with 4c. The fixed spring receiving portion 12a is provided in a part of the case 12.

On the other hand, the manual rotary shaft 13 is rotatably supported by the cover 17 and has a horn-shaped hole 13a formed in the forward end thereof in the axial direction. (See FIG. 3) That is, the drive shaft 11 and the manual rotation shaft 13 are connected to each other by slidably inserting the horn-shaped portion 11b formed at one end of the drive shaft 11 into the horn hole 13a. Are connected.

A key projection 13b elongated in the axial direction is provided on the outer surface of the manual rotation shaft 13, and when the manual rotation shaft 13 is rotated, the key projection 13b is covered by the cover 17. Key
It faces the groove 17a. The key groove 17a is formed in a part of the cover 17 so as to be parallel to the manual rotation shaft 13.

That is, when the manual rotating shaft 13 is rotated to a predetermined position, the key projection 13b faces the key groove 17a. The key projection 13b enters the key groove 17a, and the manual rotary shaft 13 can be pulled out. The manual rotation shaft 13 is rotated and pulled out by a knob 18 fixed to the base.

As shown in FIG. 3, the outer peripheral surface of the manual rotating shaft 13 is formed as a horn 13c, and the horn 13c is inserted into the horn 19a of the neutral holder 19. It is. That is, the neutral holding body 19 is rotated together with the manual rotation shaft 13 by slidably fitting the square portion 13c into the square hole 19a.

The neutral holding member 19 is rotatably supported by the drive shaft 11, and includes an arc-shaped spring receiving portion 1.
9b is provided. (See FIG. 3.) The spring receiver 19b receives the second return spring 20 with the fixed spring receiver 17b disposed inside.

That is, one end of the second return spring 20 is attached to one end of each of the spring receiving portions 17b and 19b.
a at the other end thereof, a second return spring 2
The neutral holding body 19 is always returned to the neutral rotation position by hooking the other arms 20b of the zero. The spring receiving portion 17b is provided with a cover 1 attached to the case 12.
7 is formed in an arc shape.

Since the returning power of the neutral holding member 19 is transmitted to the manual rotating shaft 13, the manual rotating shaft 13 returns to the neutral position, which is the non-operation position, and the neutral holding member 19 returns to the neutral position. Since the power is transmitted to the drive shaft 11 via the manual rotation shaft 13, the drive shaft 11 returns to the neutral position.

When the drive shaft 11 moves back in this way, the convex portion 11a is moved to the rotational position shown in FIG.
A neutral position located in the middle of the groove edges 14b ₁ and 14b ₂ of the clutch grooves 14b. The rotational position of the clutch groove 14b is set to the initial position shown in FIG. 2 by the return power of the first return spring 16.

In addition, the motor 15 is mounted in the case 12, and the motor 15 is driven and rotated for a predetermined time by a control signal generated by an automatic button operation of flowing water.
After a certain period of time, the rotation is reversed by the spring force of the first return spring 16.

Next, the operation of the above-described driving device will be described with reference to the operation diagrams shown in FIGS. FIG.
FIG. 5 is an explanatory view of the operation of the automatic operation. FIG. 4 shows the valve drive for cleaning “use urine” and FIG. 5 shows the valve drive for cleaning “use urine”.

First, in the case of "use urine", the motor 15 is driven to rotate in accordance with the operation of the automatic button, and the gear 14 rotates in the direction of arrow 21 shown in FIG. In this operation, the gear 14 is moved from the initial position of FIG.
By rotating to the position shown in FIG. 4B and rotating to the position shown in FIG. 4B, the groove edge of the clutch concave groove 14b abuts on the convex portion 11a, and the rotation is performed thereafter. Push the convex part 11a around.

As a result, the protruding portion 11a turns as shown in FIG. 4 (c), so that the drive shaft 11 turns in the direction of the arrow 21 to open the flow valve.

When a certain period of time has elapsed after the operation of the automatic button, the motor 15 rotates the gear 14 as shown in FIG. 4C, and thereafter the power supply is stopped. The spring 16 rotates backward by the force of the spring, and reversely rotates (in the direction opposite to the arrow 21) from the position shown in FIG. 4C, and stops at the correct initial position shown in FIG.

Further, the drive shaft 11 receives the returning power of the neutral holding member 19 by the second return spring 20, so that
The convex portion 11a returns to the neutral position shown in FIG. 4A, and this operation closes the flush valve.

The operation shown in FIG. 5 is performed at the time of cleaning using "feces". That is, the motor 15 is driven to rotate in accordance with the operation of the automatic button for washing "use stool", and the gear 14 rotates in the direction of arrow 22 shown in FIG.

That is, the gear 14 idles from the initial position in FIG. 5 (a) to the position in FIG. 5 (b).
1a is pushed and turned to the turning position shown in FIG. Therefore, the drive shaft 11 rotates in the direction of the arrow 22 to open the flowing water valve.

When a certain period of time has passed since the operation of the automatic button, the power supply to the motor 15 is stopped, so that the gear 14 rotates in the direction opposite to the arrow 22 by the spring force of the first return spring 16. 5, the gear 14 returns to the initial position, and the drive shaft 11 returns to the neutral position.
The state of (a) is reached, and the flowing water valve is closed. In this case, the mode
The rotation of the rotor 15 is reversed by the spring force of the first return spring 16 in a state of no power supply.

6 and 7 are explanatory diagrams of the operation of the manual operation. FIG. 6 shows a valve drive for washing "use urine" and FIG. 7 shows a valve drive for washing "use urine". First, when cleaning "use urine", the knob 18 is operated to rotate the manual rotation shaft 13 in one direction from the non-operation rotation position.

By this operation, the drive shaft 11 rotates in the direction of arrow 23 as shown in FIG. 6B, and the flowing water valve opens. In this operation, the gear 14 receives the spring force of the first return spring 16 and maintains the initial position shown in FIG.
Turn inside.

After running water, the operation of the knob 18 is released. With this release, the manual rotating shaft 13 receives the returning power of the second return spring 20 via the neutral holding member 19 and rotates back to the non-operation rotating position, so that the drive shaft 11 returns and rotates. Then, the flowing water valve is closed, and the convex portion 11a is in the neutral position shown in FIG.

When cleaning "use stool", the operation knob 18 is operated to rotate the manual rotation shaft 13 in the other direction.
By this operation, the drive shaft 11 rotates in the direction of the arrow 24 as shown in FIG. 7B, and the water valve opens.

After the water flow, by releasing the operation of the knob 18, the drive shaft 11 returns and rotates in the same manner as described above to close the water flow valve, and the convex portion 11a returns to the neutral position shown in FIG. 7 (a).
In this case, also in this operation, the convex portion 11a turns in the clutch groove 14b.

On the other hand, in the case of manual operation as described above, if the operation knob 18 is pulled out as indicated by the chain line in FIG. It enters the groove 17a.

Accordingly, when the operation of the operation knob 18 is released in this state, the key projection 13b is pressed against the groove edge of the key groove 17a by the spring force of the second return spring 20, so that the manual rotation is performed. The pull-out movement position of the driving shaft 13 can be held.

In this pull-out operation, the manual rotary shaft 1 is also used.
3 is connected to the drive shaft 11, and the rotating position of the drive shaft 11 is maintained, so that the flowing water valve can be opened. By continuing the running water by operating in this manner, it is possible to prevent the running water valve from freezing on the tank in a cold region.

The continuous opening of the above-mentioned flowing water valve is controlled by the operation knob 1
By simply depressing 8, the drive shaft 11 automatically returns to the neutral position. In addition, the key groove 17 corresponding to the position of the key projection 13b that rotates when washing with “use urine” and the position of the key projection 13b that rotates when washing with “use urine”.
By providing a, the continuous opening of the water flow valve can be performed in each cleaning operation.
A groove 17a can be provided.

Although one embodiment has been described above, the present invention is not limited to an automatic flushing device for a toilet bowl, but can be similarly implemented as a manual switching device provided in other automatic devices.

[0048]

As described above, according to the present invention, the interlocking portion of the control shaft is rotated manually in the non-interlocking region of the driving portion provided on the gear, and the interlocking portion is rotated by the driving portion of the gear. Since it is configured to be an automatic operation, there is no need to provide a special configuration such as an electromagnetic clutch for switching between automatic and manual, and it is possible to configure with a simple mechanical clutch mechanism,
The structure is simplified, and the manual switching device is suitable for low cost.

Further, since the gear is not connected to the gear in the manual operation, the operation becomes lighter, and if the manual rotary shaft is slid and held, the freezing of the flowing water valve can be prevented. And a practically convenient manual switching device.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing an embodiment implemented as a drive device provided in an automatic cleaning device for a toilet.

FIG. 2 is a partial cross-sectional view of the driving device taken along a line AA in FIG.

FIG. 3 is a partial sectional view similar to FIG. 2, cut along the line BB in FIG. 1;

FIG. 4 is an operation explanatory view showing an automatic operation at the time of urine washing.

FIG. 5 is an operation explanatory view showing an automatic operation at the time of stool washing.

FIG. 6 is an operation explanatory view showing a manual operation at the time of urine washing.

FIG. 7 is an operation explanatory view showing a manual operation during stool washing.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Drive shaft 11a Convex part 11b Square forming part 13 Manual rotation shaft 13a Square hole 13b Key convex part 13c Square part 14 Gear 14b Clutch groove 15 Motor 16 First return spring 17a Key -Groove 18 Knob 19 Neutral support 19a Square hole 20 Second return spring

Claims (2)

[Claims] 1. A manual switching device for an automatic device in which a gear provided on a control shaft is driven by a motor and controlled by rotation of the control shaft, wherein the gear is driven by a spring force from a rotation position by the motor drive. The drive shaft is rotatably supported on the control shaft so as to return, and a drive unit for rotating the control shaft in conjunction with an interlocking unit provided on the control shaft is provided on the gear, and the drive unit includes A predetermined range of non-interlocking region is provided for the interlocking portion, and a manual turning shaft for returning from a manual operation turning position to a non-operation turning position by a spring force is provided. The shaft is integrally connected to the control shaft, the gear is rotated by motor driving, and the drive unit rotates the control shaft in conjunction with the interlocking unit, while the manual rotation shaft is manually operated. To rotate the interlocking section in the non-interlocking area to control A manual switching device for an automatic device, characterized in that a control shaft is rotated. 2. The holding device according to claim 1, wherein the manual rotating shaft is connected to the control shaft such that the manual rotating shaft is slidably moved in a non-rotating manner, and the manually rotated shaft that has been operated and rotated is held at the slidingly moved position. 2. The manual switching device for an automatic device according to claim 1, wherein a mechanism is provided to continue the manually operated operation.