JPH06146375A - Nozzle driving gear - Google Patents

Abstract

PURPOSE:To provide a nozzle driving gear capable of moving a nozzle in the longitudinal direction without inverting a motor. CONSTITUTION:A shaft member 22 is formed on a cylinder 22, and a cam 17 with a guide groove 17a, in which the shaft member 22 is slid, is fixed to a device body. A crank 19 is fastened to the shaft 14 of a driving motor 13 forward moving and retreating a nozzle 21 in the longitudinal direction, and the pin 19a of the crank 19 is held slidably to the groove section 18b of a forked member 18 while the shaft member 22 is retained by the forked section 18a of the forked member 18. Accordingly, when the driving motor 13 is operated, the forked member 18 is rocked by the pin 19a, and the shaft member 22 is reciprocated along the guide groove 17a.

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 drive device that can move the position of a nozzle back and forth.

[0002]

2. Description of the Related Art As a prior art relating to the present invention, one disclosed in Japanese Utility Model Laid-Open No. 4-22572 is known. As shown in FIG. 7, this hot water washing device has a nozzle device 2 arranged in a casing 1, and the nozzle device 2
Is composed of 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 pressing 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 disposed below the fixed plate 6, and a pinion gear 9 rotated by the motor 8 meshes with the rack gear 7.

When the cleaning water is supplied from the water supply pipe 10 to the rear end of the cylinder 4 in this manner, the nozzle 3 advances by water pressure and jets the cleaning water from the front end. When the user gives an instruction to move and wash at this time, the motor 8 is operated to move the pinion gear 9 back and forth, the pinion gear 9 is moved back and forth, and because the pinion gear 9 and the rack gear 7 mesh with each other, the fixing plate 6 Moves back and forth. Thus, the nozzle 3 is moved back and forth together with the cylinder 4.

[0004]

However, in the above-mentioned device, since it is necessary to reverse the rotation direction of the motor 8, there is a problem in durability of the motor. Moreover, since the nozzle can be moved only in the front-back direction, the cleaning range is limited.

An object of the present invention is to solve the above problems, and an object of the present invention is to provide a nozzle driving device which can move a nozzle in the front-back direction without reversing the motor. Will be provided.

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

[0007]

[Constitution of the invention]

[0008]

The invention according to claim 1 is
A device main body disposed behind the toilet bowl, a cylinder disposed in the device main body, a nozzle extending forward from the cylinder tip and ejecting cleaning water from the tip, and a shaft member fixed to the cylinder A guide groove that extends in the front-rear direction in the device body and in which the shaft member is slidably inserted; a drive motor provided in the device body; and rotation of the drive motor. It is characterized by comprising crank means for converting into reciprocating linear motion and transmitting it to the shaft member.

According to a second aspect of the present invention, in the first aspect of the present invention, there is provided swinging means that is coupled to the drive motor and that swings the guide groove as the drive motor is driven. It is a thing.

[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. Accordingly, the shaft member slides in the guide groove to make a reciprocating linear motion, and the cylinder and the nozzle together with the shaft member also make a reciprocating linear motion in the front-rear direction. 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 invention, the guide groove swings as the drive motor is driven. The swinging of the guide groove causes the shaft member that slides in the guide groove to swing to the left and right, whereby the cylinder and nozzle also reciprocate in the left and right direction. Therefore, the movement direction of the nozzle is a combined movement of the front-rear direction and the left-right direction, and the cleaning range is expanded.

[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 according to the invention described in claim 1.

The nozzle drive device 11 of the present embodiment is provided in the device body (both not shown) of the local cleaning device provided at the rear of the toilet bowl. A drive motor 13 for moving the cylinder 20 and a nozzle 21 housed in the cylinder 20 back and forth is fixed to the lower surface of the base member 12 fixed in the apparatus main body, and the drive shaft 14 of the drive motor 13 is a base member. It projects from the upper surface of 12. A crank 19 is fixed to the drive shaft 14, and a pin 19a formed on the upper surface of the crank 19 makes a circular motion by the rotation of the drive shaft 14. In addition, the base member 12 includes
A cylindrical first pivotally supporting portion 15 and a second pivotally supporting portion 16 are formed so as to project upward. A shaft portion 17b of a cam 17 is fixed to the first pivot portion 15, and a shaft portion 18c of a bifurcated member 18 is pivotally supported to the second pivot portion 16. In the first embodiment, the cam 1
Since 7 is fixed to the first pivotal support portion 15, the guide groove 17a formed on the upper surface of the cam 17 is positioned parallel to the advancing / retreating direction of the nozzle 21 so as not to move. Further, a shaft member 22 extending downward from the cylinder 20 is slidably inserted into the guide groove 17a. Bifurcated member 18 disposed on the second pivot portion 16
Has a bifurcated portion 18a formed at the end opposite to the shaft portion 18c, and a cam groove 18b formed substantially at the center of the second pivotally supporting portion 16. The crank 19 is provided in the cam groove 18b.
Pin 19a 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.

Vertically extending guide shafts 23 and 24 are formed in the cylinder 20, and the guide shafts 23 and 24 are guided in guide grooves 25a and 26a of guide members 25 and 26 fixed in the apparatus main body. It does not slide in the left-right direction after sliding. Further, the guide members 25 and 26 are arranged 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 toward the inside of the toilet,
When reaching the cleaning position, cleaning water is ejected from the ejection port 21a at the tip. At this time, when the user instructs the front-back washing, the drive motor 13 operates to rotate the crank 19, and the pin 19a of the crank 19 starts circular movement. The pin 19a slides in the cam groove 18b of the bifurcated member 18, and the bifurcated member 18 swings around the shaft portion 18c in the arrow A direction (FIG. 2). Since the bifurcated portion 18a of the bifurcated member 18 holds the shaft member 22 of the cylinder 20, this pivoting rocks the shaft member 22 back and forth in the guide groove 17a, so that the cylinder 20 and the nozzle 21 rock back and forth. Move.

As described above, the rotational movement of the drive motor 13 in one direction is converted into the swing movement by the bifurcated member 18.
Further, since the shaft member 22 slides in the guide groove 17a to be converted into a linear motion, the cylinder 20 and the nozzle 21 can reciprocate linearly even if the drive motor 13 does not reverse as in the conventional case. And drive motor 13
Does not burden

Next, a second embodiment of the present invention will be described with reference to FIGS. The second embodiment relates to the invention described in claim 2, and the configuration is very similar to that of the first embodiment.

First, the cam 17 is different from the first embodiment.
Instead of the above, the rotation cam 27 is rotatably disposed on the first pivot portion 15. The rotating cam 27 has a guide groove 27 a formed on the upper surface thereof, and the shaft member 22 of the cylinder 20 is provided.
Is 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 an outer circumference of the eccentric cam 28 is slidably held by a forked portion 27c extending from a rotating cam 27. The one-way clutch 28a is the drive motor 1
3 in the normal rotation, the drive shaft 14 of the drive motor 13 and the eccentric portion 2
8b is connected, and at the time of reversal, idling is performed to cut off the connection.

Thus, when the drive motor 13 rotates normally,
Due to the rotation of the eccentric cam 28, the bifurcated portion 27c swings in the arrow B direction (FIG. 5) around the shaft portion 27b, and the guide groove 27a formed on the upper surface of the eccentric cam 28 also swings to the left and right. Also,
The bifurcated member 18 swings in the same manner as in the first embodiment to reciprocate the shaft member 22 of the cylinder 20 along the guide groove 27a. Therefore, the shaft member 22 is added with the linear reciprocating motion of the bifurcated member 18 and the oscillating motion in the left-right direction by the rotating cam 27 to start the oscillating motion in the shape of a figure 8, and the tip of the nozzle 21 is also the same. It oscillates in a figure eight shape.

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

As described above, according to the second embodiment, the continuous normal rotation of the drive motor 13 causes the nozzle 21 to move not only in the front-rear direction but also in the left-right direction, so that the cleaning range is further expanded. be able to. Also, the drive motor 1
When reversing 3, the nozzle 21 can be reciprocated back and forth, and two movements can be selected depending on 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 is not reversed as in the conventional case, and the drive motor is not burdened. Therefore, the durability of the drive motor can be improved.

Further, according to the second aspect of the invention, since the cylinder and the nozzle perform a combined motion in which not only the front-back direction but also the left-right direction is combined, the cleaning range by the nozzle is widened and the cleaning is more comfortable. Can be provided.

[Brief description of 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 of the first embodiment.

FIG. 3 is a cross-sectional view of the nozzle driving device of 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 shows a cross-sectional view of a conventional nozzle driving device.

[Explanation of symbols]

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

Front Page Continuation (72) Inventor Tomio Oguma 2-1-1 Asahi-cho, Kariya City, Aichi Prefecture Aisin Seiki Co., Ltd.

Claims (2)

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