JPS6335087Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a human body private parts cleaning device used in a toilet, particularly to an improvement of a cylinder nozzle device.

Generally, this type of device is configured to perform anal cleaning after defecation (hereinafter referred to as "shower cleaning") and female genital cleaning (hereinafter referred to as "bidet cleaning"). The configuration will be explained below.

In FIG. 1, first, the water supply route will be described. Reference numeral 1 denotes a water supply tank, and the water supplied from the tank 1 passes through a filter 2, is sucked and discharged by a pump 3, passes through a water flow control valve 4, and reaches a switching valve 5. Reference numeral 6 denotes an operating lever, which is rotated between the positions shown by the solid line (shower cleaning) and the two-dot chain line (bidet cleaning) to change the water supply amount and its pressure according to the purpose. 7 is a hot water tank, which is equipped with a heater 8 and a thermostat 9. 10 is a rectifying plate, 11 is a discharge port, and 12 is a check valve connected to an overflow line 13.

A solenoid valve 14 is provided in a line 16 branching from the water supply line 15 from the discharge port 11, and the outlet of the solenoid valve 14 is connected to the line 17.

The solenoid valve 14 is electrically closed when the operating lever 6 is in the position shown by the solid line, ie, shower cleaning, and is opened when the operating lever 6 is in the position shown by the two-dot chain line, bidet cleaning.

Next, the description will move on to the cylinder nozzle device.

Reference numeral 18 is a ceramic wall of the toilet bowl, and the front end of the fixed cylinder 19 (on the right side in the figure; the same applies hereinafter) is the seat plate member 20, 2.
0' etc., and is fixed by a nut 21 and a tightening member 22 on the threaded portion. A cap member 23 having through holes 23a and 23b is screwed and fixed to the rear end (left side in the figure; the same applies hereinafter) of the fixed cylinder 19 via a seal member 24.

Thus, the through hole 23a of the cap member 23 is connected to the water supply system path 15, and the other through hole 23b
is connected to the line 17. Inside the recess of the cap member 23 is an elastic valve 2 having a central through hole.
The rear end of the elastic valve 6 is fixed, and a first piston body 27 is disposed so as to face the front of the elastic valve 26 .
The first piston body 27 has a large diameter portion loosely fitted into the fixed cylinder 9 via a seal member 28, and a small diameter cylindrical portion 2 at the front (right side in the figure; the same applies hereinafter).
7a is formed. 29 is a movable cylinder, and the rear end of the movable cylinder 29 is connected to the first piston body 2.
7, a nut 36 is fixed to the front end via a stopper 35, and the outer periphery is guided by a sleeve 30.

A first spring 31 is stretched between the small diameter cylindrical portion 27a of the first piston body 27 and the sleeve 30 at the outer circumference of the movable cylinder 29.

A seal member 32 is provided inside the movable cylinder 29.
A second piston body 33 having a small-diameter cylindrical portion 33a having an outer peripheral portion thereof is loosely fitted therein, and a rear end of a nozzle 34 is screwed and fixed to the small-diameter cylindrical portion 33a. The front end of the nozzle 34 is provided with a suitable number of jet ports 34a, and plugs 34b are firmly fixed thereto. A second spring 37 is stretched between the small diameter cylindrical portion 33a of the second piston body 33 and the stopper 35 at the outer circumference of the nozzle 34. Reference numeral 38 designates a poppet valve, which is pressed against the inner peripheral seat portion of the second piston body 33 by a small spring 39 at the rear portion within the nozzle 34 .

Next, the operation of such a conventional device will be described.

During shower cleaning, that is, when the operating lever 6 is in the solid line position shown in the first figure, the solenoid valve 14 is in the closed state, so water from the hot water tank 7 flows through one hole in the cap member 23 to 23a. will only be sent. During shower cleaning, the first piston body is in the retracted position, and the front end of the elastic valve 26 having a central through hole is in sealing engagement with the rear opening of the through hole formed in the first piston body. . As a result, the water pressure enters the space A formed between the first and second piston bodies 27 and 33 through the central through hole of the elastic valve 26, and pushes the second piston body 33 forward. Therefore, the piston body 33 moves forward together with the nozzle 34 while compressing the second spring 37. Then, the shoulder portion 34c contacts the stopper 35 via the second spring 37, and the forward movement is stopped. Almost simultaneously with this stop, poppet valve 3
Since the strength of the spring 39 is set so that the valve 8 opens, the water flows through the valve 38 into the space B in the nozzle 34.
and is vigorously ejected upward from the ejection port 34a at the front end. This allows desired shower cleaning.

Next, let's talk about bidet cleaning. When the operating lever 6 in FIG.
It is sent to both through holes 23a and 23b of No.3. The water pressure in the through hole 23b acts on the first piston body 27, and the first piston body 2 in the shower cleaning position
7. Move the entire movable cylinder 29, second piston body 33, and nozzle 34 forward together. Then, a shoulder (not shown) of the movable cylinder 29 (similar to the shoulder 34c of the nozzle 34) comes into contact with the sleeve 30 via the first spring 31, and the forward movement of the first piston body 27 is stopped. The distance that the first piston body 27 moves forward from the first illustrated state is actually 100 mm.

As a result, the second piston body 33 and the nozzle 34
The integral body is at a position (bidet cleaning position) that is further advanced by the distance traveled by the first piston body 27 than the above-mentioned shower cleaning position, and at this position, cleaning water is jetted to perform the desired bidet cleaning. obtain.

In such a conventional device, when the operating lever 6 is at the solid line position, water flows through the large diameter hole 5a, and the water flows through the large diameter hole 5a.
When in the dot-dashed line position, water flows through the small-diameter hole 5b, and as a result, high-pressure water is sent during shower cleaning, and low-pressure water is sent during bidet cleaning. Various other methods can be considered as the method of change, such as a method of electrically controlling the rotation speed of the pump. Further, in this device, the power is turned off when the lever 6 is turned in the direction of the arrow d from the solid line position.

Therefore, when the user turns the lever 6 in the direction of arrow d from the shower cleaning position (solid line position),
The water pressure in the space A is discharged in the order of the through hole 23a, the system line 15, the tank 7, and the overflow line 13.

The conventional device has such a configuration and operation, and a sealing effect is achieved between the front end of the elastic valve 26 fixed in the recess of the cap member and the rear opening of the through hole formed in the first piston body 27. is made, and the through hole 23a
and 23b are communicated or blocked.

However, if the device is used for a long period of time, the elastic valve 26 will "sag" and the sliding resistance between the first piston body 27 and the inner peripheral surface of the fixed cylinder 19 will increase. Since the spring 31 "sags", a situation occurs in which the first piston body 27 does not return to the "completely restored state" as shown in FIG. 1.

Such a situation is a serious defect. That is, not returning to the complete return state means that the through holes 23a and 23b are always in communication, and therefore it is impossible to switch from the bidet washing position to the shower washing position. Therefore, when the bidet cleaning position is immediately switched to the shower cleaning position, the solenoid valve 14 is closed, but since the space A and the through hole 23b are in communication with each other, the high pressure water flowing in from the through hole 23a is It acts on the rear rear surface of the first piston body 27, and the piston body 27 remains in the bidet cleaning position. Therefore, even if the user intends to switch to the shower position, the user is actually sprayed with high pressure water at the bidet washing position.

As a result, in such conventional devices, it is not possible to immediately switch from the bidet cleaning position to the shower cleaning position (although it is possible, of course, to turn the lever 6 once in the direction d and turn off the power), and furthermore, The drawback was that water was sprayed under high pressure, which affected the user's feeling.

The present invention aims to eliminate the above-mentioned drawbacks, and its gist is to reduce the sliding resistance generated between the first piston body and the fixed cylinder, so that the first piston body It is designed to return the patient to a state of complete recovery.

Here, the above-mentioned "complete return state" means that the first piston body returns to the rear from the bidet cleaning position under the urging force of the first spring, and the rear opening of the through hole formed in the first piston body and the elastic valve The state in which the front end of the front end is in sealing engagement. Further, the position of the first piston body in the completely returned state is referred to as the retracted position.

Examples will be described below.

FIG. 2 is a partially broken sectional view of an embodiment of the present invention, in which the same parts as in FIG. 1 are given the same numbers and symbols. Further, the water supply line shown in FIG. 1, that is, the portion from the water supply tank 1 to the through holes 23a and 23b, is not shown because it can be similarly applied to the embodiment of the present invention shown in FIG.

The difference between Fig. 2 and Fig. 1 is that the fixed cylinder 1
An eccentric enlarged portion 191 is formed on the inner periphery of the rear end of 9. The axial length of this eccentric enlarged portion 191 is m, and the maximum eccentric gap is n, as is clear from FIG. 3, which is a sectional view taken along the - line.

The device of this embodiment is constructed as described above, and its operation is the same as that of the conventional device described above. However, in the case of the device of this embodiment, the eccentric enlarged portion 191
, the first piston body 27 completely returns to its original position (retracted position) from the bidet cleaning position, that is, the state in which the first piston body 27 is at the maximum forward position.
That is, when the first piston body 27 is returned from the maximum forward position, it is returned by the urging force of the first spring 31, but this urging force becomes weaker as it approaches the retracted position. However, when approaching this retracted position, the sliding resistance between the first piston body 27 and the fixed cylinder 19 decreases due to the presence of the eccentric enlarged portion 191.

To explain this point with reference to FIG. 4, the horizontal axis S represents the stroke of the first piston body 27, and the vertical axis F represents the load of the first spring 31 or the sliding resistance. Further, a straight line e indicates a change in the load on the spring 31, and a broken line f indicates a change in the sliding resistance. Conventionally, since the sliding resistance changed linearly as ○a → ○ro → ○c, it intersected the straight line e at ○2 points. In other words, after point ○2, the sliding resistance becomes greater, so the spring biasing force is lost, and the first piston body 27 stops just before the fully returned state. However, in the case of this embodiment, since the sliding resistance is reduced as described above, ○I→○RO→○Ho→
It becomes a broken line to ○ and does not intersect straight line e.
Therefore, the first piston body 27 always returns to its fully restored state.

In the above embodiment, the fixed cylinder 19
Although the eccentric enlarged portion 191 is provided on the inner periphery of the rear end, the entire inner periphery of the rear end may be expanded to reduce sliding resistance.

As described above, the present invention includes a first piston body that is reciprocally movable within a fixed cylinder, a cap member fixed to the rear end of the fixed cylinder, and a first piston body that biases the first piston body rearward. A first biasing means disposed on the outer periphery of a movable cylinder fixed to the piston body, and a second biasing means slidably disposed within the movable cylinder are biased rearward. a second piston body; a nozzle having a rear end fixed to the second piston body and having a jet hole formed in the front end and having a one-way valve means therein; a tubular resilient valve that is fixedly mounted and has a central through hole, the front end of which sealingly engages a rear opening of a through hole formed in the first piston body when the first piston body is in a retracted position;
A first pipe that communicates with the back surface of the second piston body through the interior of the cap member and the central through hole of the elastic valve.
and a second through hole communicating with the back surface of the first piston body.
In the cylinder nozzle device for cleaning human body private parts, the fixed cylinder has a recess provided on the inner circumferential surface near the retracted position when the first piston body returns and slides, and the recess allows the first piston body to Since the gap between the outer circumferential surface of the first piston body and the inner circumferential surface of the fixed cylinder is at least partially increased to reduce sliding resistance, the first piston body can be removed from the shower after bidet cleaning as in the conventional case. There is no possibility that it will not return completely to the cleaning position. Therefore, even if the user intends to switch from the bidet cleaning position to the shower cleaning position, the user will not be sprayed with high pressure water while actually staying in the bidet cleaning position, ensuring a good feeling for the user. be able to.

[Brief explanation of drawings]

FIG. 1 is an overall view including a sectional part showing a conventional device, FIG. 2 is a partially broken sectional view showing an embodiment of the device of the present invention, and FIG. 3 is a sectional view taken along the - line in FIG. FIG. 4 is a characteristic diagram of the first spring 31 and sliding resistance. 19... Fixed cylinder, 26... Rubber valve, 27... First piston body, 29... Movable cylinder, 31... First
Spring, 33...second piston body, 37...second
Spring, 191... Eccentric expansion part.

Claims (1)

[Claims for Utility Model Registration] (1) A first piston body that is reciprocally movable within a fixed cylinder, a cap member fixed to the rear end of the fixed cylinder, and urging the first piston body rearward. A first biasing means disposed on the outer periphery of a movable cylinder fixed to the first piston body, and a second biasing means slidably disposed within the movable cylinder bias the movable cylinder rearwardly. a second piston body which is energized; a nozzle whose rear end is fixed to the second piston body and whose front end has an ejection hole and has a one-way valve means therein; a tubular elastic valve having a rear end fixed to the valve and a front end sealingly engaging a rear opening of a through hole formed in the first piston body when the first piston body is in a retracted position; a first through hole communicating with the back surface of the second piston body through the inside of the cap member and the central through hole of the elastic valve; and a second through hole communicating with the back surface of the first piston body. In the cylinder nozzle device, the fixed cylinder has a recess provided on the inner circumferential surface near the retracted position when the first piston body slides back,
A cylinder nozzle device for cleaning a human body private part, wherein the concave portion at least partially increases the distance between the outer circumferential surface of the first piston body and the inner circumferential surface of the fixed cylinder, thereby reducing sliding resistance. (2) The human body private parts cleaning cylinder nozzle device according to claim 1, wherein the recess is an eccentric enlarged part provided on the inner peripheral surface of the fixed cylinder.