JPH10311074A - Handle device of low tank - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the handle device of a low tank in which a spindle motor- driven device is arranged. SOLUTION: The housing 12 of a handle device of a low tank 10 is arranged in the low tank 10, and a spindle 44 is passed through the housing. The rear end of the spindle 44 is projected to the outside of the low tank 10, and the handle 50 is installed onto it. A float valve is pulled up by the top end of the spindle 44 through a chain. Then the lower part of the housing 12 in which a spindle driving motor 20 is installed on the underside is covered with insulator 18.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a handle device for a low tank for supplying flush water to a toilet bowl, and more particularly to a low tank configured so that water outflow from the low tank can be started by either manual operation or switch operation. The present invention relates to a handle device.

[0002]

2. Description of the Related Art A conventional example of a handle device for a low tank of this type is disclosed in Japanese Patent Publication No. 1-121818. In this conventional low tank handle device, a thin rod-shaped second shaft is slid with respect to a cylindrical first shaft for pulling up a valve (a water discharge control valve at the bottom of the low tank) rotated by a manual handle. The valve is freely fitted inside, and the second shaft is rotated by a motor outside the low tank, and the valve can be pulled up by the rotation of the second shaft.

[0003] In the handle device disclosed in Japanese Patent Publication No. 1-18218, a case containing a motor is provided on the outer surface of the low tank, and a spindle penetrating the side wall of the low tank is inserted into the case. An operation piece for manually rotating the spindle is disposed below the case.

In Japanese Utility Model Laid-Open No. 6-76473, a handle and a motor are configured to drive a common spindle, and an engagement posture of the handle with respect to the spindle is made the same as that of a conventional low-tank type handle device for manual operation. A low tank handle arrangement is described.

[0005]

All of the above-mentioned conventional low tank handle devices have disadvantages such as poor appearance and susceptibility to mischief because the spindle motor is disposed outside the low tank.

An object of the present invention is to provide a low tank handle device in which a spindle motor is disposed inside the low tank in order to solve such problems.

[0007]

According to the handle device for a low tank of the present invention, a front end projects outside the side wall of the low tank, a rear end is located inside the low tank, and a linear member for pulling up a valve is provided at the rear end. A spindle to be coupled, a handle for turning the spindle fixed to the tip of the spindle,
In a low tank handle device including a motor and a spindle electric device having a power transmission mechanism for transmitting rotation of the motor to the spindle, and a housing surrounding the spindle electric device, the housing is disposed inside the low tank, A heat insulating material is provided at least at a lower portion of the housing.

In such a low tank handle device, since the spindle motor is disposed in the low tank, the appearance of the low tank is good in appearance, and the spindle motor is free from mischief.

In the present invention, since the heat insulating material is provided at least at the lower part of the housing surrounding the spindle motor, even when the lower part of the housing comes into contact with water in the low tank, dew condensation does not occur inside the housing. . Further, the operating noise of the motor provided in the housing is hardly transmitted to the outside.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a longitudinal sectional view showing a low tank handle device according to an embodiment, and FIG. 2 is a structural view of the inside of a housing of the low tank handle device.

An opening 10a is provided in a side wall surface of the raw tank 10, a threaded column 14a of a housing cover 14 is inserted through the opening 10a, and a nut 14b is screwed into the threaded column 14a, whereby the housing 12 of the handle device is formed. It is fixed to the low tank 10.

The housing 12 is formed by facing the housing cover 14 and the housing base 16 and connecting them with screws 15. A packing 17 is interposed between the two.

The outside of the lower part of the housing 12 is surrounded by a heat insulating material 18.

The housing 12 is installed in the low tank 10, and only the tip of the threaded column 14 a projects outside the low tank 10. A stopper ring 14c is engaged with the tip of the threaded column 14a, and the stopper ring 14c is locked on the outer surface of the raw tank 10.

The motor 20 is mounted on the housing base 16.
The worm 22 fixed to the drive shaft of the motor 20 is engaged with the worm wheel 24. The pinion 26 integral with the worm wheel 24 is
9 to the housing 12. The pinion 26 meshes with the teeth of the inter gear 30 having teeth all around. The intergear 30 and the drive-side missing gear 32 integral therewith are pivotally supported on the housing 12 by pivots 34 and 35.

A spindle 44 is inserted into a driven-side missing gear 36 which has teeth meshable with the teeth of the driving-side missing gear 32 on a part of the outer periphery.

The spindle 44 has its tip end protruding outside the raw tank 10 through the threaded column 14a, and has a boss 50a of a handle 50 mounted thereon. The rear end of the spindle 44 penetrates the toothless gear 36 and protrudes from the housing base 16. This housing base 1
A lip seal 48 is provided between the spindle 6 and the spindle 44. The rear end of the spindle 44 is bent into an L shape, and a linear body such as a float valve pulling chain is connected to the foremost part.

As shown in FIG. 2, a cam 52 is provided on the back surface of the inter gear 30. This cam 52
Are ring-shaped, and a recess 54 is formed in a part of the outer peripheral surface.
Is provided. The switch 56 whose contact is separated or separated by the cam 52 is connected to the housing base 16.
Attached to. As shown in FIG. 2, when the concave portion 54 faces the switch 56, the contacts of the switch 56 are separated. When the recess 54 moves away from the switch 56, the contacts of the switch 56 come into contact with each other and the switch 56 is turned on.

The harness 58 connected to the switch 56 and the motor 20 is connected to the opening 60 of the housing cover 14.
Through the housing and connected to a power source and a push button switch (not shown).

The opening 60 is sealed by resin molding. A groove extends in the longitudinal direction of the column 14a on the lower surface side of the threaded column 14a, and a harness 58 is passed through the groove. The harness 58 is drawn out of the raw tank 10 and routed along the outer surface of the raw tank 10.

When the water is stored in the low tank 10, the rear end of the spindle 44 faces downward, and the float valve closes the outlet at the bottom of the low tank 10. In this state, when the motor 20 is operated by turning the handle 50 by hand or operating a push button switch, the spindle 44 is rotated, the float valve is pulled up, and water flows out of the low tank. When the hand is released from the handle 50, the spindle 44 returns to the original position, and the water is stopped.

When the motor 20 is rotated by pressing the push button switch, the rotational power is transmitted in the order of the worm wheel 24, the pinion 26, the inter gear 30, and the drive side missing gear 32 in this order. Meshes with the teeth of the driven side missing gear 36. In this case, the intergear 30
When a little rotation is made, the concave portion 54 moves away from the switch 56, and the contacts come into contact. Therefore, even if the hand is released from the push button switch, power is supplied from the power supply to the motor 20 via the switch 56, and the rotation of the motor 20 is continued.

As the motor 20 continues to rotate, the toothless gears 32 and 36 mesh with each other, and the toothless gear 36 rotates. With the rotation of the toothless gear 36, the spindle 44 rotates,
Water is discharged from the low tank 10 toward the toilet.

The rotation of the motor 20 continues, and the toothless gear 36
Is further rotated clockwise so that the trailing side of the tooth row of the toothless gear 36 engages with the teeth of the drive-side toothless gear 32, the driven-side toothless gear 36 no longer rotates any further. In this state, the spindle 44 is kept rotated by about 90 ° for a while.

The motor 20 and the toothless gear 32 continue to rotate further. Eventually, the last tooth of the toothless gear 32 separates from the last tooth of the toothless gear 36, and the driven side toothless gear 3
6 is free from the drive-side toothless gear 32 and can be freely rotated. For this reason, when the meshing of the tooth rows of the toothless gears 32 and 36 is released, the spindle 44 returns to the state in which the rear end portion shown in FIG.

In the low tank handle device thus configured, since the housing 12 is disposed in the low tank 10, the appearance is good and no mischief is received. Further, since the lower portion of the housing 12 is surrounded by the heat insulating material 18, even if the water level in the low tank 10 is higher than the lower end of the housing 12 and the lower end of the housing 12 is immersed in the low tank stored water,
2 is prevented, and the motor 20 and each gear always operate normally. Further, since the heat insulating material 18 is arranged so as to surround the motor 20, a sound insulation effect that the operation sound of the motor 20 and the like are hardly transmitted to the outside can be obtained.

[0027]

As described above, according to the present invention, since the handle device of the low tank is arranged in the low tank,
It looks good and the housing is not mischievous. Further, dew condensation in the housing is prevented, and the durability of the low tank handle device is good. In addition, it is also possible to prevent propagation of motor operation noise, gear meshing noise, and the like to the outside.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing an embodiment.

FIG. 2 is a configuration diagram of the inside of a housing of a low tank handle device according to the embodiment;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Low tank 12 Housing 14 Housing cover 14a Threaded column 16 Housing base 18 Insulation material 20 Motor 44 Spindle 50 Handle

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Hiroshi Kumada 1-15-2 Higashi Mizumoto, Katsushika-ku, Tokyo (72) Inventor Makoto Ikemi 5-1-1-1, Higashikawaguchi, Kawaguchi City, Saitama Prefecture

Claims (1)

[Claims] 1. A spindle having a front end protruding outside a side wall of a low tank, a rear end positioned inside the low tank, and a rear end connected to a valve pulling linear body; and a spindle fixed to a front end of the spindle. A low-tank handle device, comprising: a spindle manual handle; a motor; and a spindle motor having a power transmission mechanism for transmitting rotation of the motor to the spindle; and a housing surrounding the spindle motor. A handle device for a low tank, wherein a heat insulating material is provided at least in a lower portion of the housing.