JP3450924B2 - Local cleaning equipment - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for cleaning a local area after use.

[0002]

2. Description of the Related Art In a device for cleaning a local area after use,
A nozzle in which a fluid oscillation element is incorporated into a nozzle for discharging cleaning water is known (see Japanese Patent Publication No. 63-60182). When the fluid oscillating element is incorporated into the nozzle that discharges the washing water, the air from the intake port of the fluid oscillating element becomes air bubbles and mixes with the washing water, so that a soft feeling can be obtained for the local area. Further, it is known that a small cylinder provided at the tip of the nozzle body can be rotated to switch the water discharge state (see Japanese Utility Model Publication 58-17824).

[0003]

However, it is not known that bubbles can be mixed in the wash water to switch the water discharge state. Also, if air bubbles are mixed into the wash water to give it a soft feel, the washing power will decrease. Also, some people prefer strong local stimulation. If two nozzles are provided, they can be switched, but the device becomes complicated. The present invention is
It is an object of the present invention to provide a local cleaning device in which bubbles are mixed in the cleaning water and the water discharge state can be switched. It is an object of the present invention to provide a local cleaning device capable of mixing bubbles or not mixing bubbles with one nozzle.

[0004]

According to the present invention, a cleaning nozzle comprises a nozzle body 10 and a nozzle cap 11 mounted at the tip of the nozzle body 10 so as to be rotatable around the axis of the nozzle body 10. Wash water spout 10
4 and an inlet port 101p for sucking air in the flow path of the wash water, and the nozzle cap 11 has a plurality of wash water outlets 114.
And an opening 124 communicating with the intake port is provided. The diameter (orifice diameter) of the water outlet 104 is equal to that of the water outlet 10.
It is preferable that the inside of the nozzle body and the inside of the nozzle cap be made to have a negative pressure by the cleaning water flowing through 4. This has the advantage that water will not leak from other water outlets or intake ports.

An opening may be provided corresponding to each of the plurality of cleaning water jets. However, when one of the cleaning water jets is coincident with the washing water spout, one of the other washing water jets is It is convenient for the processing of the nozzle cap if the two are located at the intake opening. Further, it is preferable that the plurality of cleaning water ejection ports have different shapes. By doing so, the wash water can be concentrated in a narrow area or dispersed in a wide area.

The nozzle cap can be rotated 180 degrees from the position where the intake port 124 coincides with the spout 104 to the position where the cleaning water spout 114b coincides with the spout 104, and the three cleaning water spouts are 9 between adjacent wash water outlets
If it is provided so as to be 0 degree, the intake port 124 can also be used for jetting the washing water, and when the intake port 124 is used as the jetting port for the washing water, air is not mixed and the feeling of washing can be varied.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A description will be given below with reference to the drawings. FIG. 1 is an exploded perspective view of a cleaning nozzle according to the present invention, FIG. 2 is a sectional view taken along the axis of the cleaning nozzle, and FIG. 3 is a sectional view taken along the line AA of FIG. This cleaning nozzle is provided around the nozzle body 10 and the axis of the nozzle body 10 and
The nozzle cap 11 is rotatably attached to the outer peripheral surface of the nozzle cap 11. The nozzle body 10 is provided with a channel 101 covered by a lid 103 via a packing 102. The nozzle cap 11 is the nozzle body 10.
To the water supply pipe 3, the cap holder 112 rotatably mounted on the outer peripheral surface of the receiving port 105, the screw 1
It is integrated with 12a. The O-ring 24 is fitted in the groove 106 provided on the outer peripheral surface of the nozzle body 10 to keep the nozzle cap 11 and the nozzle body 10 watertight.

The flow passage 101 communicates with a wash water passage 107, and the wash water is jetted into the flow passage 101 by water pressure and is discharged from a water spout 104 through a wash water spout 114 provided in the nozzle cap 11. The nozzle cap 11 is provided with a wide-mouthed cleaning water ejection port 114a and a cleaning water ejection port 114b composed of four pores in a positional relationship of 90 degrees.
Further, an opening 124 is provided in a positional relationship with the wash water jet 114b at an angle of 180 degrees (see FIG. 3). An O-ring 25 for maintaining watertightness between the nozzle cap 11 and the nozzle body 10 is fitted on the peripheral wall of the water discharge port 104.

A step portion 108a serving as a stopper is provided at the tip of the nozzle body 10, and a similar step portion 108b is also provided at the bottom of the nozzle cap 11 (a portion facing the tip of the nozzle cap 10). When the nozzles are in contact with each other, the water discharge port 104 of the nozzle body 10 and the cleaning water jet port 114 of the nozzle cap 11 are aligned with each other. That is, the stepped portion allows the nozzle cap 1 to be provided only between the position where the jet outlet 114a and the spout 104 coincide with each other and the position where the spout 114b coincides with the spout 104.
The rotation angle is limited so that 1 can rotate. For example, in the illustrated case, the step portion 108a at the tip of the nozzle body 10 has a fan shape with a central angle of 90 degrees, and the step portion 108b at the bottom of the nozzle cap 11 has a semicircular shape. By doing so, the step portion 108a at the tip of the nozzle body 10 and the nozzle cap 11
A fan-shaped space extending 90 degrees is formed between the stepped portion 108b and the bottom step 108b, and the nozzle cap 11 can be rotated by 90 degrees. Then, when the side walls of the stepped portions 108a and 108b are in contact with each other, the water discharge port 104 of the nozzle body 10 and the wash water ejection port 114 of the nozzle cap 11 coincide with each other.
The spout 104 and the flush water spout 114 can be surely aligned with each other.

In this embodiment, the nozzle cap 11 is 9
By rotating it by 0 degree, the position of any of the flush water jet ports and the spout 104 is aligned. First, wash water spout 1
When 14a is aligned with the spout 104, the opening 124
Is sucked into the air inlet 101p of the flow path. Next, when the nozzle cap 11 is rotated by 90 degrees so that the flush water spout 114b is aligned with the spout 104, the flush water spout 114a moves to the position of the opening 124, from which air is sucked in and suctioned. Inhaled into the mouth 101p.

Next, the nozzle cap 11 shown in FIG.
A case will be described in which the intake port 124 can be rotated from a position where it coincides with the water outlet 104 to a position where the wash water ejection port 114b coincides with the water outlet 104. in this case,
The step portion 108b at the bottom of the nozzle cap 11 has a fan shape of 90 degrees.

In this embodiment, the nozzle cap 11 is set to 1
By rotating 80 degrees, the position of any of the intake port 124, the wash water jet 114a or the wash water jet 114b and the spout 104 are aligned. First, when the intake port 124 coincides with the water discharge port 104, the intake port 101p is not in communication with the atmosphere, so that air is not sucked. Hereinafter, when the nozzle cap 11 is rotated by 90 degrees, the state shown in FIG.
Inhaled at 01p. Next, the nozzle cap 11 is further rotated by 90 degrees, and the flush water jet port 114b becomes the spout port 10.
4 is matched, the washing water jet port 114a is opened to the opening 12
4, the air is sucked from here, and is sucked into the intake port 101p.

Next, the rotating mechanism of the nozzle cap 11 will be described. Even if the rotation angle of the nozzle cap 11 is slightly deviated, the cleaning water will be sprayed to a portion other than the local portion. Therefore, it is important to accurately control the rotation angle. Figure 4
Figure 3 shows a perspective view of the simplest mechanism. Spur gear 46 configured to rotate with the nozzle cap holder
The nozzle cap 11 rotates by rotating the nozzle cap 11. As a result, the flush water jet port aligned with the spout 104 is switched. The spur gear 46 is rotated by transmitting the rotation of the nozzle cap drive motor 41 a by the transmission shaft 47 and the drive gear 42. After the nozzle cap 11 has rotated to a predetermined position, the nozzle driving motor 41b is rotated, the water supply pipe 3 is advanced, and the nozzle cap 11 is moved to the cleaning position. The transmission shaft 47 is supported by the support arm 48 of the water supply pipe 3 so as to be rotatable and immovable in the axial direction.
And the drive gear 42 move while meshing with each other. Since both the spur gear 46 and the drive gear 42 are spur gears, some error is allowed before and after the stop position of the water supply pipe 3, which is convenient. Further, since the nozzle cap can be rotated at the position where the nozzle is extended, it is possible to switch the washing water ejection port midway.

FIG. 5 shows a perspective view of another rotating mechanism, and FIG. 6 shows a front view excluding the water supply pipe. The mechanism shown in FIGS. 5 and 6 is an example using the Geneva gear 52. The Geneva gear 52 has a groove 52g into which the pin 51p can be inserted, and the pin gear 51 having one pin serves as a driving gear, and the pin 51p rotates into the groove 52g until it completely comes out. Then, the pin gear 51 rotates once and the pin 5
It is stopped until 1p enters the next groove 52g. Therefore, there is no possibility that the motor will rotate too much and the gear 46 will rotate too much. Normally, the motor rotates by a certain angle due to inertia even when the power is turned off, but the nozzle cap 11 can be accurately stopped at a predetermined position by adjusting the number and the intervals of the grooves 52g. In addition, the switch 41s that generates a pulse when the pin 51p pushes the switch 41s at a portion that abuts when the pin 51p rotates.
Is provided. Switch 41 operated by pin 51p
Instead of s, a device using a magnetic effect such as a Hall element may be used. Moreover, if a stepping motor is used, such a device is unnecessary. The spur gear 46
Is rotatably fitted in the water supply pipe 3. Then, the concave portion 46a is provided on the inner diameter side, and the convex portion 112t fitted in the concave portion 46t is provided on the nozzle cap holder 112.
When the water supply pipe 3 is retracted,
It fits in 6t and transmits the rotation of the spur gear 46 to the nozzle cap holder 112.

Next, the operation of this device will be described. The operator turns on the power after using the toilet (usually configured to be turned on by pressing the wash button on the control panel). At this time, the ejection port of the cleaning nozzle is selected as desired or when necessary (presses the selection button). Then, when the jet port at the steady position is selected, the control device (not shown) causes the nozzle drive motor 41
Power on b. On the other hand, when the ejection port that is not in the steady position is selected, the control device turns on the power of the nozzle cap drive motor 41a. Then, every time the pin 51p rotates once, the switch 41s is pushed to send a pulse to the control device. The controller counts this pulse,
When a predetermined number of pulses are received, the power of the nozzle cap driving motor 41a is turned off, and the nozzle driving motor 4a
Power on 1b. After the nozzle advances to the predetermined position, the nozzle drive motor 41b stops and the cleaning operation starts. When the operator presses the stop button after the cleaning is completed, the control device stops the spraying of the cleaning water and the nozzle drive motor 41b.
Rotate in reverse. Then, when the water supply pipe 3 retracts to the initial position, the control device causes the nozzle cap drive motor 41a.
Is rotated in the reverse direction to return the jet outlet to the steady position and stop.

The apparatus described above uses two motors for driving the nozzle cap and the nozzle. Next, a device that drives both the nozzle cap and the nozzle with one motor will be described with reference to FIGS. 7, 8, 9, 10, and 11. FIG. 7, FIG. 8 and FIG. 11A show a state in which the nozzle is driven (expanded and contracted). Also, FIGS.
11B shows a state in which the nozzle cap is driven (rotated). In FIG. 11, the gear Gc shown by the solid line meshes with the gear Gd also shown by the solid line, the gear Ga shown by the two-dot chain line meshes with the gear Gb shown by the two-dot chain line, and the gear Gt shown by the dotted line shows the same. Gear G shown by dotted line
mesh with u. Among them, the gear Ga and the gear Gb shown by the chain double-dashed line are always meshed with each other, and the other gears are separated from each other or meshed with each other depending on the position of the lever L. This operation will be described below. The rotation of the motor M is caused by the gear Ga.
It is transmitted to the gear Gb. The gear Gb is supported by a bearing at one end of a lever L that swings around the shaft of the gear Ga. At the other end of the lever L, a guide pin P fitted in the groove of the groove cam C is provided. The gear Gc and the gear Gt are also fitted into the shaft of the gear Gb, and the gear Gb, the gear Gc, and the gear Gt are integrated. Then, according to the swing of the lever L, the gear Gb moves up and down while meshing with the gear Ga, and when the gear Gb moves upward, the gear Gd moves to the position meshing with the gear Gc and the gear Gb moves downward. At this time, the gear Gu is attached at a position where it meshes with the gear Gt. The gear Gv is coaxial with the gear Gu, and the gear Gv meshes with the gear Gw. A rack is provided on the lower surface of the water supply pipe 3, and the gear Gw meshes with this rack (see FIGS. 7 and 8). The gear Gd, the gear Ge, the gear Gf, the gear Gg, the gear Gh, and the gear Gi form meshes in this order, and the rotation direction is changed between the face gear Gh integrated with the gear Gi and the gear Gk meshing with the face gear Gh. There is a gear Gl on the same axis as the gear Gk, the gear Gl and the spur gear 46 are always meshed (fixed), and when the nozzle contracts, the convex portion of the cap holder 112 fits into the concave portion 46t of the spur gear 46. It will be in the state of being enclosed (see FIGS. 9 and 10).

Next, the operation of this device will be described. The operator turns on the power after using the toilet (usually configured to be turned on by pressing the wash button on the control panel). At this time, the ejection port of the cleaning nozzle is selected as desired or when necessary (presses the selection button). Then, when the ejection port in the steady position is selected, the control device (not shown) turns on the power of the motor M as it is. When the nozzle is contracted in the standby state,
The gear Gt meshes with the gear Gu, and the rotation of the motor M is transmitted to the gear Gw, moves the water supply pipe 3, extends the nozzle, and then starts the cleaning operation. On the other hand, when the ejection port that is not in the steady position is selected, the control device turns on the drive device of the groove cam C, swings the lever L, and moves the gear Gc to a position where it meshes with the gear Gd. Then, the power of the motor M is turned on and the nozzle cap 11 is rotated. When the nozzle cap finishes the predetermined rotation, the control device once turns off the power source of the motor M, reversely rotates the drive device of the groove cam C, meshes the gear Gt and the gear Gu, and rotates the motor M to the gear. The water supply pipe 3 is moved to Gw, the nozzle is extended, and the cleaning operation starts. After cleaning
When the operator presses the stop button, the control device stops the jet of washing water and causes the motor M to rotate in the reverse direction. And the water supply pipe 3
When the vehicle moves backward to the initial position, the control device turns on the drive device for the groove cam C, swings the lever L, and then the gear G
c is moved to a position where it meshes with the gear Gd. Then, the power of the motor M is turned on and the nozzle cap 11 is rotated. When the nozzle cap finishes the predetermined rotation and returns to the initial position, the control device turns off the power of the motor M, reversely rotates the drive device of the groove cam C, returns the lever L to the initial position, and stops.

[0018]

According to the present invention, since bubbles can be mixed in the wash water and the water discharge state can be switched, local washing can be performed according to the user's preference.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing an embodiment of a nozzle portion relating to the present invention.

FIG. 2 is a sectional view of a nozzle portion according to the present invention.

3 is a cross-sectional view taken along the line AA of FIG.

FIG. 4 is a perspective view showing an example of a mechanism for rotating a nozzle cap.

FIG. 5 is a perspective view showing another example of a mechanism for rotating a nozzle cap.

FIG. 6 is a front view of the main part of FIG.

FIG. 7 is a perspective view showing another example of a mechanism for rotating a nozzle cap.

FIG. 8 is a front view of the main part of FIG.

9 is a perspective view showing an operating state of FIG. 7. FIG.

FIG. 10 is a front view of the main part of FIG.

FIG. 11 is a diagram for explaining the operation of the mechanism of FIG. 7, where (a) shows the meshing of gears when the nozzle is driven, and (b).
Shows the meshing of gears when the nozzle cap rotates.

[Explanation of symbols]

10 nozzle body 11 nozzle cap 104 spout 101p intake 114a, 114b Wash water spout 124 Opening to the intake port

─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Mitsuru Iwai 1250 Shimoeden, Shimodate-shi, Ibaraki Prefecture Inside the Yuki factory of Hitachi Chemical Co., Ltd. (72) Go Noguchi 1250 Shimoeden, Shimodate-shi, Ibaraki Hitachi Chemical Co., Ltd. Yuki Factory Co., Ltd. (56) Reference JP-A-7-26611 (JP, A) JP-A-1-146031 (JP, A) JP-A-4-231528 (JP, A) Actual Development Sho 60-181474 ( (58) Fields investigated (Int.Cl. ⁷ , DB name) E03D 9/00-9/16

Claims (5)

(57) [Claims] 1. A cleaning nozzle comprises a nozzle body and a nozzle cap mounted at the tip of the nozzle body so as to be rotatable around the axis of the nozzle body, and the nozzle body is provided with a cleaning water spouting port and an air flow path for cleaning water. A local cleaning device, characterized in that an intake port for inhaling air is provided, and a plurality of cleaning water ejection ports and an opening communicating with the intake port are provided in the nozzle cap. 2. The cleaning water jet port, when one of the washing water spouts coincides with the washing water spout port, one of the other washing water spouts is located at a position for intake. Local cleaning equipment. 3. The local cleaning apparatus according to claim 1 or 2, wherein the plurality of cleaning water ejection ports have different shapes. 4. The cleaning nozzle comprises a nozzle body and a nozzle cap mounted at the tip of the nozzle body so as to be rotatable around the axis of the nozzle body, and the nozzle body is provided with a cleaning water spouting port and an air flow channel for cleaning water. 1. A local cleaning apparatus comprising: an intake port for inhaling air, and three nozzles for cleaning water, the nozzle cap being provided with three cleaning water nozzles such that the distance between adjacent cleaning water nozzles is 90 degrees. 5. The local cleaning apparatus according to claim 1, 2, 3 or 4, wherein the diameter of the water outlet is such that the inside of the nozzle main body and the inside of the nozzle cap have a negative pressure due to the wash water flowing through the water outlet.