JP3371638B2 - Sanitary washing 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 cleaning nozzle position adjusting drive means mounted on a sanitary cleaning device for cleaning a human body part in a toilet.

[0002]

2. Description of the Related Art As a conventional sanitary washing device of this type, there is a nozzle driving means disclosed in Japanese Patent Application Laid-Open No. 61-229039. FIG. 6 shows a cross-sectional view of this conventional nozzle driving means, 1 is a nozzle support cylinder, 2 is a drum arranged at the rear of the nozzle support cylinder 1, and 3 is housed in the nozzle support cylinder 1. It is a nozzle that freely moves in and out from its tip. A connecting spring 4 is arranged at the rear part of the nozzle 3, one end side is fixed to the rear end part of the nozzle 3 and the other end side is fixed on the outer peripheral surface of the drum 2, and the drum 2 is a motor (not shown).
The nozzle 3 can be advanced in front of the nozzle support cylinder 1 and can be retracted into the nozzle support cylinder 1 by rotating the nozzle support cylinder 1.

[0003]

However, since the nozzle driving means of the conventional sanitary washing device is configured as described above, it has the following problems.

(1) Since the supporting body of the driven nozzle is constructed so as to wrap around the nozzle, it is difficult to assemble and it takes a long time to assemble.

(2) It takes a considerable amount of time to repair the nozzle such as clogging of the nozzle with dust. (3) Since the supporting body of the driven nozzle is configured to wrap around the nozzle, a sliding contact area becomes large, a driving load is large, and a motor having a large torque is required.

(4) When the posterior washing nozzle and the bidet washing nozzle are separately provided, the nozzle supporting cylinder becomes large and space is required.

(5) When the nozzle support cylinder is composed of upper and lower parts so that the nozzle can be assembled and repaired from the upper surface, there are two parts in sliding contact with the nozzle, so there is a large variation in sliding clearance. It was difficult to drive smoothly. That is, when the clearance is large, the nozzle meanders, and when it is small, the sliding load becomes very large.

The present invention is intended to solve the above problems,
It is an object of the present invention to provide a sanitary washing device that is easy to assemble and repair in a warm water washing toilet seat and that can smoothly drive a nozzle.

[0009]

In order to achieve the above object, a sanitary washing device of the present invention comprises a cylinder for accommodating a posterior washing nozzle and a bidet washing nozzle, and a rack gear provided on the lower surface of the cylinder. A brim portion provided on both side surfaces of the cylinder, a notch portion that cuts out a part of the brim portion, a nozzle support base that supports the cylinder so as to move forward and backward in the axial direction, and a slidable portion with the brim portion. A guide rail provided on the nozzle supporting base to be fitted, a sliding flat surface portion which forms a sliding surface with the lower surface of the brim portion and constitutes the guide rail, an upper surface and a sliding surface of the brim portion, and The pulse synchronization includes a plurality of claws that form a guide rail, a pulse synchronization motor that horizontally arranges an output shaft and drives the cylinder forward and backward, and a pinion gear that is fixed to the output shaft and meshes with the rack gear. The cylinder is formed by integrally forming a motor mounting portion for mounting the motor on the nozzle support base, fitting the cutout portion and the claw portion, and fitting the brim portion between the claw portions. The nozzle support base and the nozzle support base are detachable.

Further, the guide rail has a substantially U-shaped cross-sectional shape by a sliding flat surface portion, a side surface portion that is substantially perpendicular to the sliding flat surface portion, and a claw portion that is substantially perpendicular to the side surface portion. Corresponding to, the opening portion wider than the width of the claw portion is provided in the side surface portion in the advancing and retracting direction.

The brim portion has a sliding portion that slides on the guide rail, a joint portion that joins the sliding portion to the cylinder, and
The joint portion and a slime portion provided between the cylinder are provided, and the thickness of the joint portion at the portion to be joined to the cylinder is smaller than the average thickness of the cylinder.

[0012]

According to the sanitary washing device of the present invention having the above-described structure, the washing function portion having the nozzle and the driving function portion for driving the washing function portion can be easily separated, and the assembling and repairing can be facilitated. it can. Moreover, since the nozzle support structure can be configured by one part, the variation in the sliding clearance can be controlled to be small, and smooth sliding can be performed. In addition, since the driving force is transmitted by rotating the pinion gear in the vertical direction, eccentricity to the left and right is less likely to occur, and by directly mounting the pulse synchronous motor on the nozzle support base, there is variation in the distance between gears. It is possible to guarantee a small number of good meshes.

Further, an opening is provided on the side surface of the claw portion which constitutes the guide rail of the nozzle support base, and the die of the guide rail which serves as an undercut portion is slid so that it slides on the sliding flat surface portion. Smooth sliding is realized without burrs that cause dynamic resistance.

In addition, since the brim portions provided on both side surfaces of the cylinder are made thinner than the average wall thickness of the cylinder by providing a thin portion at the portion to be joined with the cylinder, molding of sink marks or the like on the inner peripheral surface of the cylinder is performed. The bottom washing nozzle and the bidet washing nozzle can be smoothly housed and projected from the cylinder without distortion. Furthermore, the sliding portion of the brim portion is not deformed by shrinkage or the like after molding, and the parallelism of the sliding portion can be guaranteed.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. In FIG. 1, a toilet bowl 20 is equipped with a hot water washing toilet seat body 21 as a washing means, and a water supply pipe 24 is connected to the hot water washing toilet seat body 21 from a water pipe 22 via a branch faucet 23. A warm water tank (not shown), a water supply control valve (not shown), a washing nozzle 25, and a controller 26 are built in the warm water washing toilet seat body 21.

In the above structure, the operation will be described. Tap water is taken from a branch faucet 23 connected to a water pipe 22 and warmed and stored in a hot water tank, and a cleaning nozzle is operated in response to an operation input from an operating means 27. The cleaning water is sprayed from 25 onto the human body part.

FIG. 2 shows a detailed structure of the cleaning nozzle 25. The washing nozzle 25 is a bottom washing nozzle 28 and a bidet washing nozzle 29 that slide and expand due to the washing water supply pressure.
And a cylinder 30 accommodating the bottom washing nozzle 28 and the bidet washing nozzle 29. The cylinder 30 is integrally formed with a flow rate control valve 32 that controls the amount of water supplied by a valve motor 31 by screwing. The cylinder 30 has a rack gear 33 formed on the lower surface in the same direction as the sliding direction of the posterior washing nozzle 28, and the flange portion 3 is formed on the side surface of the cylinder 30.
4 is forming. Further, the guide rail 36 is provided on the nozzle support base 35, and the flange portion 34 of the cylinder 30 is fitted to the guide rail 36 of the nozzle support base 35,
The cylinder 30 is held so as to be movable back and forth. Further, the pinion gear 38 is fitted and fixed to the output shaft 47 of the pulse synchronous motor 37, and the pulse synchronous motor 37 is fixed to the nozzle support base 35 in a direction orthogonal to the advancing / retreating direction of the cleaning nozzle 25 with the output shaft 47 being horizontal. The pulse synchronous motor 37 is mounted by mounting the motor mounting portion 4 below the guide rail 36 of the nozzle support base 35.
8 is provided so that the pinion gear 38 is located at a predetermined position. At this time, the pinion gear 38 and the rack gear 33 of the cylinder 30 mesh with each other. Further, the nozzle support base is fastened and fixed at a predetermined position inside the warm water washing toilet seat 21. With the above structure, the pinion gear 38 is rotated by rotationally driving the pulse synchronous motor 37, and the rack gear 33 in the meshed state moves linearly in the tangential direction with the pitch circle of the pinion gear 38, so that the integrally formed cylinder 30 Is driven back and forth along the guide rail.

Since the driving force is transmitted by the vertical rotation of the pinion gear 38, there is little eccentricity to the left and right. Further, since the motor is directly attached to the nozzle support base, the distance between the gears is determined only by the size of one component of the nozzle support base, and the meshing accuracy is improved.

Next, the guide rail 36 having the above structure
Will be described with reference to FIG. The guide rail 36 formed on the upper surface of the nozzle support base 35 has a sliding flat surface 39.
And a side surface portion 40 that is substantially vertical to the sliding flat surface portion 39 and a claw portion 41 that is substantially vertical to the side surface portion 40 form a substantially U-shaped cross-section, and the claw portion in the advancing / retracting direction corresponds to the claw portion 41. An opening 42 wider than the width of 41 is provided in the side surface portion 40. With this configuration, the undercut portion is eliminated, and it is possible to manufacture by resin molding. In addition, since the sliding flat surface 39 is free from burrs, the fitting with the brim portion is smoothed because the side surface direction is thinned, and there is little rattling when the cylinder 30 slides, enabling smooth forward / backward drive. There is.

The structure of the brim portion 34 will be described with reference to FIGS. 4 and 5. FIG. 4 is a plan view of a cylinder of the sanitary washing device,
FIG. 5 is a detailed view of the brim portion of the sanitary washing device. Head part 34
Are formed on both side surfaces of the cylinder 30, and the guide rail 36
And a joint portion 44 for joining the slide portion 43 to the cylinder 30 and a meat thin portion 45 provided between the joint portion 44 and the cylinder 30. The thickness of the portion joined to the cylinder 30 is configured to be thinner than the average thickness of the cylinder 30, and the sliding clearance between the cylinder 30 and the posterior washing nozzle 28 and the bidet washing nozzle 29 is predetermined by suppressing the deformation of the inner diameter surface of the cylinder 30. Since it can be secured to the value of, the slide expansion and contraction by the wash water supply pressure is smooth. Further, by providing the thinned-out portion 45, the molding strain of the sliding portions provided on both side surfaces is reduced, the parallelism can be increased, and smooth sliding is possible. Further, the notch portion 46 that cuts out a part of the brim portion 34 is configured to be wider than the width of the claw portion 41 of the guide rail 36, and the width of the brim portion 34 is the claw portion that configures the guide rail 36. Since it is smaller than the distance between 41, it can be assembled by positioning the claw portion 41 in the notch portion 46, fitting it, and sliding it backward.

With this, the cylinder including the posterior washing nozzle and the bidet washing nozzle can be easily attached to and detached from the nozzle supporting base, and the assembling and repairing are very simple.

According to the embodiments of the present invention as described above, (1) the assembling and repair can be easily performed, the variation in the sliding clearance can be controlled to be small, and the smooth sliding can be performed. .

(2) The output shaft of the pulse synchronous motor is arranged horizontally, and the pinion gear is fixed to the output shaft.
By directly mounting the pulse synchronous motor on the nozzle support base, the pinion gear rotates in the vertical direction to transmit the driving force, and the eccentric force to the left and right does not easily occur, and the meshing between gears is small with little variation in the distance between the gears. Good driving with less meandering can be realized.

(3) The guide rail has a substantially U-shaped cross section, and an opening wider than the width of the claw portion is provided on the side surface portion in the advancing / retracting direction so as to correspond to the claw portion, so that it slides on the sliding flat surface portion. It does not generate burrs that may cause resistance during resin molding, and enables smooth sliding.

(4) Since the wall thickness of the portion where the brim portion is joined to the cylinder is made thinner than the average wall thickness of the cylinder by providing the thinned portion, the parallelism of the sliding portion provided on the brim portion is increased, Sliding resistance is reduced and smooth nozzle position adjustment is realized.

[0026]

As described above, according to the present invention, the cylinder and the nozzle support base are detachable by fitting the notch portion and the claw portion and fitting the brim portion between the claw portions, Moreover, by configuring the nozzle support structure with one component,
It has the following effects.

(1) Assembling and repairing can be performed easily, variation in sliding clearance can be controlled to be small, and smooth sliding can be performed.

(2) The output shaft of the pulse synchronous motor is arranged horizontally, and the pinion gear is fixed to the output shaft.
By directly mounting the pulse synchronous motor on the nozzle support base, the pinion gear rotates in the vertical direction to transmit the driving force, and the eccentric force to the left and right does not easily occur, and the meshing between gears is small with little variation in the distance between the gears. Good driving with less meandering can be realized.

(3) The guide rail has a substantially U-shaped cross section, and an opening wider than the width of the claw portion is provided on the side surface portion in the advancing / retracting direction so as to correspond to the claw portion, so that the slide surface slides. It does not generate burrs that may cause resistance during resin molding, and enables smooth sliding.

(4) Since the thickness of the portion where the brim portion is joined to the cylinder is made thinner than the average thickness of the cylinder by providing the thinned portion, the parallelism of the sliding portion provided on the brim portion is increased, Sliding resistance is reduced and smooth nozzle position adjustment is realized.

[Brief description of drawings]

FIG. 1 is an external view of a sanitary washing device according to a first embodiment of the present invention.

FIG. 2 is a side view of a main part of a nozzle unit of the sanitary washing device.

FIG. 3A is a diagonal top view of a guide rail of the sanitary washing device, and FIG. 3B is a top view of a guide rail of the sanitary washing device.

FIG. 4 is a top view of a cylinder of the sanitary washing device.

FIG. 5 is a sectional view of a brim portion of the sanitary washing device.

FIG. 6 is a cross-sectional view of nozzle driving means in a conventional sanitary washing device.

[Explanation of symbols]

21 Hot water washing toilet seat body (sanitary washing device) 28 bottom washing nozzle 29 bidet cleaning nozzle 30 cylinders 33 rack gear 34 Head part 35 nozzle support 36 Guide rail 37 pulse synchronous motor 38 Pinion Gear 39 Sliding flat surface 40 side 41 Claw 42 opening 43 Sliding part 44 joint 45 Meat slime part 46 Notch 47 output shaft 48 Motor mounting part

Continuation of the front page (56) References JP 62-296023 (JP, A) JP 62-242030 (JP, A) JP 2-61231 (JP, A) JP 4-146341 (JP , A) Actual Kaihei 4-97981 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) E03D 9/08

Claims (3)

(57) [Claims] 1. A cylinder for accommodating a posterior washing nozzle and a bidet washing nozzle, a rack gear provided on the lower surface of the cylinder, a brim portion provided on both side surfaces of the cylinder, and a part of the brim portion. A cutout portion, a nozzle support base that supports the cylinder so as to move back and forth in the axial direction, a guide rail that is provided on the nozzle support base that slidably fits the collar portion, and a lower surface of the collar portion. A sliding flat surface portion that forms a sliding surface and forms the guide rail; a plurality of claw portions that form a sliding surface on the upper surface of the brim portion and that forms the guide rail; A pulse synchronous motor that moves forward and backward, and a pinion gear that is fixed to the output shaft and meshes with the rack gear, and a motor mounting portion for mounting the pulse synchronous motor may be integrally formed on the nozzle support base. In the fitted the cutout portion and the claw portion and the sanitary washing apparatus without detachable with said nozzle support base and the cylinder by the flange portion by fitting between the claw portions. 2. The guide rail has a substantially U-shaped cross-sectional shape by a sliding flat surface portion, a side surface portion that is substantially perpendicular to the sliding flat surface portion, and a claw portion that is substantially perpendicular to the side surface portion. The sanitary washing device according to claim 1, wherein an opening portion, which is wider than the width of the claw portion, is provided in the side surface portion in the advancing / retreating direction. 3. The brim portion has a sliding portion that slides on the guide rail, a joint portion that joins the sliding portion to the cylinder, and a meat thin portion provided between the joint portion and the cylinder. Then
The sanitary washing device according to claim 1, wherein the thickness of the joining portion of the portion joined to the cylinder is thinner than the average thickness of the cylinder.