JP3136800B2 - Nozzle drive - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a nozzle driving device,
More specifically, the present invention relates to a nozzle driving device capable of moving a nozzle position back and forth.

[0002]

2. Description of the Related Art As a prior art related to the present invention, one disclosed in Japanese Utility Model Laid-Open No. Hei 4-22572 is known. As shown in FIG. 7, the hot water cleaning device has a nozzle device 2 provided in a casing 1 and a nozzle device 2
Comprises a nozzle 3 for ejecting washing water from the tip and a cylinder 4 for accommodating the nozzle 3. The cylinder 4 is fixed between the holding plate 5 and the fixed plate 6, and a rack gear 7 is formed on the lower surface of the fixed plate 6. A motor 8 is provided below the fixed plate 6, and a pinion gear 9 rotated by the motor 8 meshes with the rack gear 7.

[0003] When the washing water is supplied to the rear end of the cylinder 4 from the water supply pipe 10, the nozzle 3 advances by water pressure and jets the washing water from the tip. When the user instructs the mobile cleaning at this time, the motor 8 is operated to move the pinion gear 9 back and forth, and the pinion gear 9 is moved back and forth. Moves back and forth. Thus, the nozzle 3 moves back and forth with the cylinder 4.

[0004]

However, in the above-described apparatus, since the rotation direction of the motor 8 needs to be reversed, a problem occurs in the durability of the motor. Further, since the nozzle can be moved only in the front-back direction, the cleaning range is limited.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems, and an object of the present invention is to provide a nozzle driving device capable of moving a nozzle in the front-rear direction without reversing a motor. Shall be provided.

It is another object of the present invention to widen the moving direction of the nozzle so that more comfortable cleaning can be performed.

[0007]

Configuration of the Invention

[0008]

According to the first aspect of the present invention,
An apparatus main body disposed behind the toilet bowl, a cylinder disposed in the apparatus main body, a nozzle extending forward from the tip of the cylinder and ejecting washing water from the distal end, and a shaft member fixed to the cylinder A guide groove formed in the apparatus main body to extend in the front-rear direction, in which the shaft member is slidably inserted; a drive motor provided in the apparatus body; and rotation of the drive motor. Crank means for converting the reciprocating linear motion to the shaft member and transmitting the reciprocating linear motion to the shaft member is provided.

According to a second aspect of the present invention, in the first aspect of the present invention, there is provided a swinging means connected to the drive motor for swinging the guide groove together with the drive of the drive motor. Things.

[0010]

According to the first aspect of the present invention, by using the crank means, the drive of the drive motor is converted into a reciprocating linear motion by the crank means and transmitted to the shaft member. Thus, the shaft member slides in the guide groove and reciprocates linearly, and the cylinder and the nozzle also reciprocate linearly back and forth with the shaft member. Thus, even if the drive motor does not reverse the rotation,
The cylinder and nozzle can move back and forth.

According to the second aspect of the present invention, the guide groove swings with the driving of the driving motor. The shaft member that slides in the guide groove swings left and right by the swing of the guide groove, whereby the cylinder and the nozzle reciprocate in the left and right direction. Therefore, the movement direction of the nozzle is a combined movement of the movement in the front-back direction and the movement in the left-right direction, and the cleaning range is widened.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described with reference to FIGS. The first embodiment is based on the first aspect of the present invention.

The nozzle driving device 11 of the present embodiment is disposed in a device body (both not shown) of a local cleaning device disposed behind the toilet. A drive motor 13 for moving the cylinder 20 and a nozzle 21 housed in the cylinder 20 forward and backward is fixed to a lower surface of a base member 12 fixed in the apparatus main body, and a drive shaft 14 of the drive motor 13 is connected to the base member. 12 protrudes from the upper surface. A crank 19 is fixed to the drive shaft 14, and a pin 19 a formed on the upper surface of the crank 19 performs a circular motion by rotation of the drive shaft 14. In addition, the base member 12 includes
A first pivotal support 15 and a second pivotal support 16 are formed to protrude upward. The shaft 17 b of the cam 17 is fixed to the first pivot 15, and the shaft 18 c of the forked member 18 is pivotally supported to the second pivot 16. In the first embodiment, the cam 1
7 is fixed to the first pivot portion 15, so that the guide groove 17a formed on the upper surface of the cam 17 is positioned parallel to the direction in which the nozzle 21 advances and retreats and does not move. A shaft member 22 extending downward from the cylinder 20 is slidably inserted into the guide groove 17a. Bifurcated member 18 disposed on second pivot 16
A fork portion 18a is formed at an end opposite to the shaft portion 18c, and a cam groove 18b is formed substantially at the center of the second pivot portion 16. The cam groove 18b has a crank 19
Is inserted. The forked portion 18a is interposed between the cylinder 20 and the cam 17, and slidably holds the shaft member 22 of the cylinder 20.

The cylinder 20 is formed with vertically extending guide shafts 23 and 24. The guide shafts 23 and 24 extend through guide grooves 25a and 26a of guide members 25 and 26 fixed in the apparatus main body. It does not rattle in the left-right direction by sliding. The guide members 25 and 26 are disposed so as to come into contact with the cylinder 20.
When 0 moves back and forth, it slides on the guide members 25 and 26 so that it does not rattle in the vertical direction.

Next, the operation of the first embodiment will be described. When a cleaning instruction is input, cleaning water is supplied to a water supply port (not shown) at the rear end of the cylinder 20. As a result, the nozzle 21 extends from the cylinder 20 into the toilet,
When reaching the washing position, washing water is ejected from the ejection port 21a at the tip. At this time, when the user instructs the front and rear cleaning, the drive motor 13 operates to rotate the crank 19, and the pin 19 a of the crank 19 starts circular movement. The pin 19a slides in the cam groove 18b of the forked member 18, and the forked member 18 swings around the shaft 18c in the direction of arrow A (FIG. 2). Since the forked portion 18a of the forked member 18 holds the shaft member 22 of the cylinder 20, the swing causes the shaft member 22 to swing back and forth in the guide groove 17a, so that the cylinder 20 and the nozzle 21 swing back and forth. Move.

As described above, the rotational motion of the drive motor 13 in one direction is converted into the oscillating motion by the forked member 18.
Further, since the guide member 17 is converted into a linear motion by sliding the shaft member 22 in the guide groove 17a, the cylinder 20 and the nozzle 21 can perform a reciprocating linear motion even if the drive motor 13 does not reverse as in the related art. And the drive motor 13
Do not burden.

Next, a second embodiment of the present invention will be described with reference to FIGS. The second embodiment relates to the second aspect of the invention, and has a structure very similar to that of the first embodiment.

The difference from the first embodiment is that the cam 17
Instead of this, a rotating cam 27 is rotatably arranged on the first pivotal support 15. The rotating cam 27 has a guide groove 27 a formed on the upper surface thereof.
Are slidably inserted.

The drive shaft 14 of the drive motor 13 has
An eccentric cam 28 composed of a one-way clutch 28a and an eccentric portion 28b is fixed, and the outer periphery of the eccentric cam 28 is slidably held by a forked portion 27c extending from the rotating cam 27. The one-way clutch 28a is connected to the drive motor 1
3, the drive shaft 14 of the drive motor 13 and the eccentric portion 2
8b, and when idling is reversed, the connection is cut off.

Thus, when the drive motor 13 rotates forward,
By the rotation of the eccentric cam 28, the forked portion 27c swings in the direction of arrow B (FIG. 5) about the shaft portion 27b, and the guide groove 27a formed on the upper surface of the eccentric cam 28 also swings right and left. Also,
The forked member 18 swings in the same manner as in the first embodiment, and reciprocates the shaft member 22 of the cylinder 20 along the guide groove 27a. For this reason, the shaft member 22 starts to oscillate in a figure-eight shape by adding the left-right oscillating motion by the rotary cam 27 to the linear reciprocating motion by the forked member 18, and the tip of the nozzle 21 similarly. It swings like a figure eight.

When the drive motor 13 is reversed, the eccentric cam 28 does not rotate, and only the forked member 18 swings, causing the shaft member 22 of the cylinder 20 to reciprocate along the guide groove 27a. Therefore, as in the first embodiment, the nozzle 21 and the cylinder 20 reciprocate back and forth.

As described above, according to the second embodiment, the continuous forward rotation of the drive motor 13 causes the nozzle 21 to move not only in the front-back direction but also in the left-right direction, so that the cleaning range is further expanded. be able to. The drive motor 1
At the time of reversal of 3, the nozzle 21 can reciprocate back and forth, and two movements can be selected according to the rotation direction of the drive motor 13.

[0023]

According to the first aspect of the present invention, the cylinder and the nozzle can reciprocate linearly even if the drive motor does not reverse as in the prior art, so that no load is imposed on the drive motor. Therefore, the durability of the drive motor can be improved.

According to the second aspect of the present invention, since the cylinder and the nozzle make a combined movement of not only the front-back direction but also the left-right movement, the washing range by the nozzle is widened and more comfortable washing is performed. Can be provided.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a nozzle driving device according to a first embodiment of the present invention.

FIG. 2 is a plan view of the nozzle driving device according to the first embodiment.

FIG. 3 is a cross-sectional view of the nozzle driving device according to the first embodiment.

FIG. 4 is an exploded perspective view of a nozzle driving device according to a second embodiment of the present invention.

FIG. 5 is a plan view of a nozzle driving device according to a second embodiment.

FIG. 6 is a sectional view of a nozzle driving device according to a second embodiment.

FIG. 7 is a sectional view of a conventional nozzle driving device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Nozzle drive device 12 Base member 13 Drive motor 14 Drive shaft 17a Guide shaft 18 Bifurcated member 18a Bifurcated part 18b Cam groove 18c Shaft part 19 Crank 19a Pin 20 Cylinder 21 Nozzle 22 Shaft member 27 Rotating cam 27a Guide groove 27b Shaft part 27c Bifurcated Part 28 Eccentric cam

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-6-57805 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) E03D 9/08

Claims (2)

(57) [Claims] 1. An apparatus main body disposed behind a toilet bowl, a cylinder disposed in the apparatus main body, a nozzle extending forward from a distal end of the cylinder and ejecting washing water from the distal end, A shaft member to be fixed, a guide groove formed to extend in the front-rear direction within the apparatus main body, and the shaft member is slidably inserted therein; a drive motor provided in the apparatus main body; A nozzle driving device comprising crank means for converting the rotation of a driving motor into a reciprocating linear motion and transmitting the rotation to the shaft member. 2. The nozzle driving device according to claim 1, wherein the nozzle driving device includes a swinging unit that is connected to the driving motor and swings the guide groove when the driving motor is driven. .