JP2825454B2 - Nozzle mechanism in sanitary washing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a washing nozzle for installing a casing body in which a related device for washing a local part of a user is installed at a rear portion of a toilet seat of a toilet bowl, and for ejecting washing water to a front side of the casing body. The present invention relates to a nozzle mechanism in a sanitary washing device configured to support a nozzle.

[0002]

2. Description of the Related Art Conventionally, in this type of sanitary washing apparatus, a single motor is used to extend and retract a washing nozzle for ejecting hot water, and to finely adjust an extending position (an end washing position and a bidet washing position). A nozzle mechanism that performs a move operation (fine forward / backward movement) by belt driving is generally known. Such a nozzle mechanism does not have a structure that can switch the water path between the tail cleaning water and the bidet cleaning water in one water path. Therefore, two water paths are formed in the nozzle, and each of the water paths is formed. A total of two water supply tubes were separately connected. Further, in order to selectively supply hot water from the one water supply source to each of the two water supply tubes, an associated device such as a dedicated water channel switching valve is separately provided.

In another sanitary washing apparatus, only one water supply port is provided for the cleaning nozzle, and only one water supply tube is connected. The water supply passage in the nozzle depends on the extension position of the nozzle. There is also known a nozzle mechanism which can be operated to switch between a butt washing and a bidet washing. In such a nozzle mechanism, a drive system such as a motor for performing fine adjustment of the extension position of the nozzle and a move operation is provided separately from a motor for performing the expansion and contraction operation of the nozzle and a drive mechanism thereof. Had been.

[0004]

However, in the nozzle mechanism of the sanitary washing device described above, two water supply tubes are connected to the cleaning nozzle, so that two water supply tubes are operated when the nozzle is operated. , And there are many restrictions on the component layout of the entire apparatus, which is a problem from the viewpoint of design and miniaturization. Also,
Related devices such as two water channels, two water supply tubes, and a dedicated water channel switching valve were required, so that the number of parts was large and the number of assembly steps was large, which was disadvantageous in cost.

Further, the nozzle mechanism in the sanitary washing device described later requires two drive system motors for operating the nozzles in a predetermined manner, which causes an increase in cost and a demand for space saving which has been increasing in recent years. There was a problem that was also contrary. The above problems cannot be solved at all by simply combining the nozzle mechanisms of the two sanitary washing devices described above. A completely new type of nozzle mechanism having only the advantages of the conventional nozzle mechanism is not attainable. Development has long been desired in the sanitary washing equipment industry.

The present invention has been made in view of such a conventional problem. By unifying the drive motor and the water supply port, the number of parts can be reduced, and the cost and space can be reduced. It is an object of the present invention to provide a nozzle mechanism in a sanitary washing apparatus which can meet a request and can surely switch the jet of washing water between ass washing and bidet washing with a simple configuration.

[0007]

The gist of the present invention to achieve the above-mentioned object lies in the following items.

[1] A casing body (10a) is provided at a rear portion (2) of a toilet seat of a toilet (1), and a washing nozzle (20) for jetting washing water is supported on the front side of the casing body (10a). In the sanitary washing device (10), the nozzle mechanism is supported so as to extend back and forth in the casing body (10a), and its position can be adjusted in the axial direction by a drive motor (50), and the inside thereof is adjusted. A nozzle main body (21) serving as a first washing water passage (21a) connected to a water supply source; and an outer fitting on the outer periphery of the nozzle main body (21), and the drive motor (5) extending along the axial direction thereof.
By means of 0), separately from the nozzle body (21), it is movable to a retracted standby position, a buttocks washing position extending forward of the casing body (10a), and a bidet washing position further forward, and the inside is movable. Nozzle head which becomes a second washing water passage (31a) communicating with the first washing water passage (21a), and has a buttocks ejection hole (32) and a bidet ejection hole (33) formed before and after the front end side, respectively. (31) and an inner space that is movable in the axial direction without blocking the passages over the washing passages (21a, 31a) of the nozzle body (21) and the nozzle head (31), and is provided with an urging means ( 44), and is biased forward by the nozzle body (2).
Stopper (42) engaging with front end opening (23) of 1)
The front end side closes the bidet ejection hole (33) when the nozzle head (31) is at the buttocks washing position, while the nozzle body (21) is at the buttocks washing position when the nozzle body (21) is at the bidet washing position. A nozzle (41) provided with a cap (43) for closing the ejection hole (32), the nozzle mechanism in the sanitary washing device (10).

[2] When the nozzle head (31) is in the standby position, the cap (43) of the cylinder (41) has the buttocks ejection hole (32) and the bidet ejection of the nozzle head (31). Each of the ejection holes (3) on the tip side of the nozzle head (31) at the standby position is disposed at a position where the hole (33) is not closed.
[1] characterized in that a washing cover (60) is provided to cover the second and 33) with a gap for washing water outflow.
A nozzle mechanism in the sanitary washing device (10) according to the above.

[0010]

When the sanitary washing device (10) is not used, the nozzle body (21) constituting the nozzle mechanism is at the rearmost initial position in the casing body (10a). Then, the nozzle head (3) fitted externally to the nozzle body (21)
1) is at a standby position in a state of being retracted relatively to the nozzle body (21).

When the user sitting on the toilet (1) cleans the buttocks, the nozzle head (31) is moved by the drive motor (50) to the buttocks washing position extending forward of the casing body (10a). . Then, each of the washing water passages (2) of the nozzle body (21) and the nozzle head (31) is formed.
Cylinder (41) movable within 1a, 31a)
Is moved forward by the urging force of the urging means (44).
When the stopper (42) at the rear end of the cylinder (41) engages with the front end opening (23) of the nozzle body (21), the cap (43) at the front end of the cylinder (41).
Closes the bidet ejection hole (33) at the tip end of the nozzle head (31).

As a result, the first in the nozzle body (21)
The washing water supplied from the water supply source to the washing water passage (21a) passes between the cylinders (41) and passes through the nozzle head (3).
After flowing into the second washing water passage (31a) in 1), it is ejected from the unoccupied buttocks ejection hole (32). At the time of such ass cleaning, the drive motor (50) adjusts the position of the entire nozzle including the nozzle body (21), that is, the nozzle head (31) extended from the nozzle body (21) in the axial direction. Therefore, the fine adjustment of the jetting position of the washing water and the moving operation (fine front-back operation) can also be performed by the one drive motor (50).

On the other hand, when the user cleans the bidet,
Nozzle head (31) by the drive motor (50)
Is moved to a bidet washing position further forward than the buttocks washing position. Then, due to a change in the relative positional relationship between the nozzle head (31) and the cylinder (41), the cap (43) on the front end side of the cylinder (41) is just at the front end side of the nozzle head (31). The buttocks outlet (32) will be closed.

Therefore, the washing water flowing into the nozzle head (31) is jetted from the open bidet jetting hole (33). In such bidet cleaning, the drive motor (50)
The nozzle body (21), that is, the nozzle body (2)
1) The entire nozzle, including the nozzle head (31) that extends further, may be moved further forward in the axial direction.

As described above, the first cleaning water passage (21a) in the nozzle body (21) and the second cleaning water passage (31a) in the nozzle head (31) are integrally connected to each other to supply one water. In order to form a path, only one location on the nozzle body (21) side needs to be connected to the water supply source. Moreover, one drive motor (5
In 0), the expansion and contraction operation of the nozzle head (31) constituting the nozzle mechanism, the fine adjustment of the extended position of the entire nozzle (the butt washing position, the bidet washing position) and the moving operation can be performed.

Further, in the case where the cleaning cover (60) is provided, when the cleaning water is supplied from the nozzle body (21) while the nozzle head (31) is in the standby position, the cleaning water is supplied to the nozzle head (31). 31), each of the jet holes (32,
33). However, the jetted washing water hits the inner wall of the washing cover (60) and rebounds, while flowing down the gap for washing water outflow.
The tip side is cleaned and can be kept clean.

[0017]

An embodiment of the present invention will be described below with reference to the drawings. 1 to 3 show one embodiment of the present invention. As shown in FIG. 3, the sanitary washing device 10 includes a casing body 10a which is attached to the rear part 2 of the toilet seat 1 and in which related equipment for washing a local part of a user is installed. The nozzle mechanism in the sanitary washing device 10 includes a washing nozzle 20 for ejecting washing water to the front side of the casing body 10a.
It consists of supporting.

In the front portion 11 of the casing body 10a, cleaning-related equipment such as a water supply mechanism is provided in addition to the nozzle mechanism described below. Also, on one side 12 of the casing body 10a, related equipment such as a hot water storage tank, a heater, and a temperature control means, which mainly constitute a feed water heating device, are installed. On the other side 13, a dryer is provided as necessary. , A deodorizer, a heater or the like are installed. The casing body 10
To a, a toilet seat 14 and a toilet lid 15 are pivotally connected so as to be openable and closable.

As shown in FIGS. 1 (a) to 1 (c) and FIG.
The cleaning nozzle 20 of the nozzle mechanism includes a nozzle body 21 and
It has a nozzle head 31 and a cylinder 41, and is capable of performing a nozzle expansion / contraction operation, a fine adjustment of an extension position and a move operation (fine front-back operation) by one drive motor 50. In addition, the water passage in the nozzle can be switched between for tail washing and bidet washing depending on the extension position of the nozzle.

The nozzle body 21 includes a casing body 10a.
As shown in FIG. 3, it is supported so as to extend downward from the rear to the front, and is provided so as to be adjustable in its axial direction by the drive motor 50.
The inside of the nozzle body 21 is a first washing water passage 21a, and a water supply port 22 for connecting a tube for communicating and connecting to a water supply source (not shown) is provided at the rear end side thereof. An opening 23 is formed in the front end surface of the nozzle body 21.

The nozzle head 31 is provided with the nozzle body 21.
Is externally fitted to the outer circumference of the
It is configured to expand and contract. Nozzle head 31
Is separated from the nozzle body 21 by the drive motor 50, and the standby position in the retracted state, and the casing body 10
The position is set to move to a buttocks washing position extending forward from a and a bidet washing position extending further forward.

More specifically, as shown in FIG. 1A, the standby position is when the nozzle head 31 is externally fitted to the rear end of the nozzle body 21, and as shown in FIG. 1B. Next, when the nozzle head 31 is extended with respect to the nozzle main body 21 by the dimension A, the butt cleaning position is established. As shown in FIG.
(> A) It is configured to be the bidet cleaning position when the dimension is extended.

As shown in FIG. 1B, after the nozzle head 31 is extended to the buttocks washing position, the nozzle body 21, that is, the entire washing nozzle 20 is further moved forward by the dimension B. The tip side of the nozzle head 31 is set so as to be able to match the reference point of the tail cleaning position. Further, as shown in FIG. 1C, after extending the nozzle head 31 to the bidet cleaning position, the normal nozzle body 21, that is, the entire cleaning nozzle 20 is further D (>).
B) When the nozzle head 31 is moved forward by the dimension, the tip side of the nozzle head 31 can be set to the reference point of the bidet cleaning position.

The inside of the nozzle head 31 is a second washing water passage 31a communicating with the first washing water passage 21a in the nozzle body 21, and the first washing water passage 21a and the second washing water passage 21a are connected to each other.
The washing water passage 31a forms one water supply passage. In the upper surface of the front end of the nozzle head 31, a buttocks ejection hole 32 is formed, and further, a bidet ejection hole 33 is formed at a front position thereof.

The cylinder 41 is provided inside the washing water passages 21a, 31a of the nozzle body 21 and the nozzle head 31 so as to be movable in the axial direction without closing the passages. The cylinder 41 is urged forward by a coil spring 44 as urging means. Here, the urging means is not limited to the coil spring 44, and may be, for example, a rubber material.

At the rear end of the cylinder 41, there is provided a stopper 42 which engages with the front end opening 23 of the nozzle body 21 without blocking the water passage, while at the front end, the nozzle head 31 is provided. When the nozzle body 21 is at the bidet cleaning position, the cap 4 closes the bidet ejection hole 33 when the nozzle body 21 is at the bidet cleaning position.
3 are provided. Such a cylinder 41 is moved by the urging force of the coil spring 44 so that the front end cap 4
3 is configured to be able to move forward to a position where it engages with the front end surface of the nozzle head 31 or the position where the stopper 42 at the rear end engages with the front end opening 23 of the nozzle body 21.

As shown in FIG. 2, the drive motor 50 alone serves as a drive source for performing the above-described expansion / contraction operation of the cleaning nozzle 20, fine adjustment of the extension position, and move operation (fine front-back operation). And is fixed in the casing body 10a so as to be located below the base end side of the nozzle body 21. A drive pulley 52 for expanding and contracting the head and a drive gear 53 for adjusting the entire nozzle are fixed to an output shaft 51 of the drive motor 50, and in the middle of the output shaft 51 between the drive pulley 52 and the drive gear 53. Disconnectable / connectable clutch 51
a is provided.

Although the construction of the clutch 51a is general, its description is omitted. However, when power is supplied to the drive motor 50 while the clutch 51a is connected, the drive pulley 52
And the drive gear 53 rotate synchronously while the clutch 5
When power is supplied to the drive motor 50 in a state where 1a is turned off, only the drive pulley 52 rotates and the drive gear 53 does not rotate.

A driven pulley 54 is pivotally supported on the tip side of the nozzle body 21, and an endless belt 55 is stretched between the driven pulley 54 and the driving pulley 52. The endless belt 55 is disposed along the side of the nozzle body 21, and the middle of the endless belt 55 is engaged with the locking piece 35 protruding from the rear end side of the nozzle body 21 so as to be able to be pushed and pulled. ing. That is, the rotation of the driving pulley 52 allows the nozzle head 31 to perform the expansion and contraction operation on the nozzle body 21. Note that a wire drive may be used instead of the belt.

At the rear end of the nozzle body 21, a rack 56 is provided which extends in the axial direction and meshes with the drive gear 53. The rack 56 has an L-shaped cross section to avoid interference with the endless belt 55. Further, a guide groove 36 for preventing interference with the rack 56 is formed in the nozzle head 31.

The rotation of the driving gear 53 causes the nozzle body 21 to move in the axial direction. When the drive gear 53 rotates as shown in FIG. 2, the drive pulley 52 always rotates, so that not only the nozzle body 21 but also the cleaning nozzle 20 including the nozzle head 31 is provided.
The whole can be finely adjusted and moved in the axial direction. At this time, the nozzle body 21 and the nozzle head 3
The relative positional relationship with 1 is set so as not to change.

As shown in FIG. 3, the casing body 10a
A cleaning cover 60 is fixed to the front part 11 of the printer.
As shown in FIG. 1A, when the nozzle body 21 is at the rearmost initial position and the nozzle head 31 is at the standby position, as shown in FIG.
1 is disposed so as to cover each of the ejection holes 32 and 33 on the distal end side with a gap 61 for washing water outflow.

Next, the operation will be described. In FIG. 1A, when the sanitary washing device 10 is not used, the nozzle body 21 constituting the washing nozzle 20 is at an initial position on the rearmost side in the casing body 10a (see FIG. 3). And the nozzle head 31 which is fitted to the nozzle body 21 is
It is in a standby position in a state of being retracted relatively to the nozzle body 21. At this time, the cylinder 41 is
Of the nozzle head 31 by the urging force of
The nozzle head 31 is located at a position in contact with the inner wall of the front end face of the nozzle head 31.
The washing water passages 21a and 31a are open without being closed by the cap 43.

In this state, when the washing water is supplied from the water supply port 22 on the nozzle body 21 side into the washing water passages 21a, 31a, the washing water is supplied to the ejection holes 32, 3 of the nozzle head 31.
It gushes from 3. However, the flushing water that has jetted out hits the inner wall of the cleaning cover 60 and rebounds, and flows down the clearance 61 for flushing water, so that the tip side of the nozzle head 31 is cleaned and can be kept clean. As described above, by performing the self-cleaning of the nozzles by rebounding from the ejection holes 32 and 33, the cleaning performance can be further improved as compared with a conventional Y-packing seal system, for example.

When a user sitting on the toilet bowl 1 cleans the buttocks, the drive head 50 moves the nozzle head 31 to a buttocks washing position extending forward of the casing body 10a. In other words, when the clutch 51a is disengaged and power is supplied to the drive motor 50 in FIG. 2, only the drive pulley 52 rotates, so that the nozzle head 31 is moved forward by a dimension A with respect to the casing body 10a in FIG. You only have to extend it.

Subsequently, when the drive motor 50 is operated with the clutch 51a connected, the drive gear 53 rotates together with the drive pulley 52, so that the nozzle body 21 having the rack 56 meshed with the drive gear 53 is moved in the front-rear direction. Go to Further, at this time, the nozzle head 31 also moves by the same stroke together, so that the relative positional relationship between the nozzle body 21 and the nozzle head 31 does not change, and the entire cleaning nozzle 20 is finely adjusted in the axial direction. Move operation can be performed. Specifically, as shown in FIG. 1B, first, only the nozzle head 31 is extended forward by the dimension A, and then the entire cleaning nozzle 20 is further moved forward by the dimension B. Can be adjusted to the reference point of the ass washing position.

When the tip end side of the nozzle head 31 coincides with the reference point of the buttocks washing position, the cylinder 41
Is extended by the urging force of the coil spring 44 to a position where the rear end stopper 42 engages with the front end opening 23 of the nozzle body 21. At this time, the cap 43 of the cylinder 41
This closes the bidet ejection hole 33 of the nozzle head 31.

Accordingly, the washing water supplied to the first washing water passage 21a in the nozzle body 21 flows into the second washing water passage 31a in the nozzle head 31 through the space between the cylinders 41, and then is blocked. It blows out from the buttocks outlet 32 which is not. At the time of such ass cleaning, the position of the nozzle body 21, that is, the entire nozzle including the nozzle head 31 extending from the nozzle body 21 can be adjusted in the axial direction by the drive motor 50. And the moving operation (fine front-back operation) can be performed by one drive motor 50.

On the other hand, when the user cleans the bidet,
As shown in FIG. 1C, the drive motor 50 first moves the nozzle head 31 by a dimension C to a bidet cleaning position further forward than the buttocks cleaning position. Subsequently, when the entire cleaning nozzle 20 is further moved forward by the dimension D,
The tip side of the nozzle head 31 can be adjusted to the reference point of the bidet cleaning position. In this state, the nozzle body 21
The washing water supplied to the first washing water passage 21a in the inside flows into the second washing water passage 31a in the nozzle head 31 through the space between the cylinders 41, and then passes through the insertion hole 43a of the cap 43.
And is ejected from the bidet ejection hole 33. Also in such bidet cleaning, the fine adjustment of the cleaning water ejection position and the moving operation can be performed by one drive motor 50.

As described above, the first washing water passage 21a in the nozzle body 21 and the second washing water passage 31a in the nozzle head 31 are integrally connected to each other to form one water supply passage. It is sufficient to connect and connect to the water supply source only at one place on the side. Thus, only one water supply tube is required, and the movement of the water supply tube due to the expansion and contraction of the nozzle can be reduced. In addition, there is no need for a dedicated switching valve or the like for switching the water path between the buttocks washing and the bidet washing. Moreover, one drive motor 50
Thus, the expansion / contraction operation of the nozzle head 31 forming the nozzle mechanism, the fine adjustment of the extension position of the entire nozzle, the bottom cleaning position, and the bidet cleaning position, and the move operation can be performed.

The nozzle mechanism in the sanitary washing device according to the present invention is not limited to the specific configuration of the above-described embodiment. For example, in the above-described embodiment, a rack and pinion is used as a drive mechanism for finely adjusting the extension position of the cleaning nozzle 20 and performing a move operation using one drive motor 50, as shown in FIG. Alternatively, a cam mechanism may be used.

In the driving mechanism shown in FIG.
A boss 52a protrudes from a side surface of the drive pulley 52 around which an endless belt 55 that performs a zero expansion / contraction operation is stretched. A cam 70 is pivotally supported by a pivot 71 beside the driving pulley 52, and one end of the cam 70 is connected to the rear end of the nozzle body 21 via a link 73 so as to be able to be pushed and pulled. I have. The cam 70 has an engaged groove 72 with which the boss 52a of the drive pulley 52 can be engaged.

According to such a cam mechanism, when the drive motor 50 is operated in both the forward and reverse directions with the boss 52a engaged with the engaged groove 72 of the cam 70 as shown in the figure, the cleaning nozzle It is possible to cause the entire 20 to perform a move operation (fine front-back operation) and the like.

[0044]

According to the nozzle mechanism of the sanitary washing apparatus according to the present invention, the first washing water passage in the nozzle body and the second washing water passage in the nozzle head are integrally connected to each other to form one water supply passage. Therefore, since it is sufficient to connect and connect the water supply source only at one place on the nozzle body side, only one water supply tube is needed, the number of parts can be reduced, and the movement of the water supply tube due to the expansion and contraction of the nozzle is small. As a result, the degree of freedom in design and miniaturization is increased due to reduced restrictions on component layout. Further, a dedicated switching valve for switching the water path between the buttocks washing and the bidet washing is not required, so that the cost can be reduced and the demand for space saving can be satisfied.

In addition, since one drive motor performs the expansion / contraction operation of the nozzle head constituting the nozzle mechanism, the fine adjustment of the extension position of the entire nozzle, the tail cleaning position, and the bidet cleaning position, and the move operation, the number of parts can be further increased. , And can respond to requests for cost reduction and space saving.

[Brief description of the drawings]

FIG. 1 is a sectional view for explaining the operation of a nozzle mechanism of a sanitary washing device according to one embodiment of the present invention.

FIG. 2 is a perspective view showing a nozzle mechanism of the sanitary washing device according to one embodiment of the present invention.

FIG. 3 is a perspective view showing a toilet provided with a sanitary washing device according to an embodiment of the present invention.

FIG. 4 is a side view showing a drive system of a nozzle mechanism of a sanitary washing device according to another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Toilet bowl 10 ... Sanitary washing device 10a ... Casing main body 20 ... Washing nozzle 21a ... First washing water passage 31 ... Nozzle head 31a ... Second washing water passage 32 ... Butt ejection hole 33 ... Bidet ejection hole 41 ... Cylinder 44: Coil spring (biasing means) 50: Drive motor 60: Cleaning cover

Claims (2)

(57) [Claims] 1. A nozzle mechanism in a sanitary washing device comprising: a casing main body provided at a rear portion of a toilet seat of a toilet bowl; and a washing nozzle for ejecting washing water is supported on a front side of the casing main body. A nozzle body that is supported so as to extend in the front-rear direction, is position-adjustable in the axial direction thereof by a drive motor, and has a first cleaning water passage whose inside is connected to a water supply source; Along with the nozzle body, the fitting motor can be moved along the axial direction thereof to a standby position in a retracted state, a buttocks washing position extending to the front of the casing body, and a bidet washing position further forward, separately from the nozzle body. Yes,
And a nozzle head having an inside serving as a second washing water passage communicating with the first washing water passage, and a butting ejection hole and a bidet ejection hole formed before and after a front end side, respectively; Along the inside of each cleaning passage, the passage is axially movable without closing the passage, and is urged forward by an urging means. On the rear end side, the front end opening of the nozzle body is engaged. A stopper that closes the bidet ejection hole when the nozzle head is at the buttocks washing position, and a cap that closes the buttocks ejection hole when the nozzle body is at the bidet washing position is provided at the front end side. A nozzle mechanism in a sanitary washing device, comprising: a cylinder provided. 2. When the nozzle head is at a standby position,
The cylinder is disposed at a position where the cap does not block the buttocks ejection holes and the bidet ejection holes of the nozzle head. Each of the ejection holes at the tip end side of the nozzle head at the standby position is provided on the casing body side. The nozzle mechanism according to claim 1, further comprising a cleaning cover that covers a state in which there is a gap for washing water outflow.