JP2527131Y2 - Bathtub drainage - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the technology of a drainage device provided in a bathtub.

[0002]

2. Description of the Related Art Some recent bathtubs are provided with a drainage device which alternately opens and closes a drainage plug via a flexible shaft every time a button is pressed. FIG. 3 shows an example of the drainage device. The drainage device 1 includes a push button unit 2, a drain plug 6, and a flexible shaft 10 connecting the button body 5 of the push button unit 2 and the drain plug 6. The push button unit 2 includes upper and lower cases 3 and 4 and a button body 5.
And is provided on the upper edge surface 12 of the bathtub. The drain plug 6 includes a case 7, a plug 8, and a plug holder 9,
It is provided on the bottom surface 13 of the bathtub. The plug holder 9 includes a ratchet mechanism or the like, and stops the plug 8 at the raised position or the lowered position, and opens and closes the drain plug 6. The flexible shaft member 10 is made of a wire cable or the like, and its surface is covered with an outer tube 11. One end of the flexible shaft member 10 is connected to the button body 5, and the other end is connected to the plug holder 9. Each time the button body 5 is pressed, the flexible shaft 1
0 slides forward and the plug 8 stops at the raised position or the lowered position via the plug holder 9, and the drain plug 6 alternately opens and closes.

[0003]

Since the push button section 2 is provided on the upper edge surface 12 of the bathtub, there are the following drawbacks. When entering or leaving the bathtub, the upper edge surface 12 may be assisted by hand. Also, during bathing, the upper edge 12 may be relaxed with both arms. In the case described above, the hand may be put on the button body 5 and the drain plug 6 may be opened. If the drain plug 6 is opened during additional firing, there is a risk of empty firing. In addition, when several persons take a bath in order, the person who took a bath first puts his hand on the button body 5 to open the drain plug 6 and then goes out to take a bath. In some cases, hot water is extremely low or missing, and you may not be able to take a bath.

[0004]

Means for Solving the Problems The present invention has been made in view of the above problems. Thus, the means adopted by the present invention is that each time the button body of the push button portion provided on the upper edge surface of the bathtub is pressed, a drain plug provided on the bottom surface of the bathtub via a flexible shaft member. In a drainage device that opens and closes alternately, a play gap is provided between a button body and a flexible shaft by an elastic member.

[0005]

According to the drainage device of the present invention, a play gap is provided between the button body and the flexible shaft by an elastic member. Therefore, the flexible shaft does not slide forward if the hand touches the button body excessively when entering or leaving the bathtub. That is, the drain cock does not open and close excessively. In addition, when opening and closing the drain cock, the button body may be pushed in for at least the stroke of the play gap.

[0006]

An embodiment will be described below with reference to the drawings.

The essential part of the drainage device according to the present invention is that a play gap is provided between the button main body and the flexible shaft member. The connection state with the flexible shaft will be described. Drain cock
The description is omitted because it is the same as the conventional technology.

First, a first embodiment will be described with reference to FIG. The drain device 21 includes a push button unit 22 and a drain plug (not shown).
And the flexible shaft 27. The push button portion 22 includes upper and lower cases 23 and 24 and a button body 25, and is provided on an upper edge surface 34 of the bathtub. A plunger 26 is attached to the back surface of the button body 25. Flexible shaft 27
Consists of a wire cable or the like, and the surface is
8 is covered. A receiving plunger 29 is attached to one end of the flexible shaft 27. A guide cylinder 30 for guiding one end of the plunger 26 and the receiving plunger 29 is attached to the upper case 23. A spring 31, which is an elastic member, is provided between the plunger 26 and the receiving plunger 29, and a play gap 32, which is a play space of the button body 25, is provided. In addition, also between the back surface of the receiving plunger 29 and the bottom of the guide cylinder 30,
A return spring 33 is provided. The return spring 33 is provided to push the button body 25 to slide the flexible shaft 27 forward and thereafter return the flexible shaft 27 to its original position. According to this embodiment, when the button body 25 is slightly touched, the button body 25 only moves within the play gap 32, and the movement is not transmitted to the flexible shaft 27. Therefore, there is no need to open and close the drain cock unnecessarily.

Next, a second embodiment will be described with reference to FIG. The drain device 41 includes a push button portion 42 and a drain plug (not shown).
And a flexible shaft member 48. The push button portion 42 includes upper and lower cases 43 and 44 and a button body 45, and is provided on an upper edge surface 55 of the bathtub. A plunger 46 is attached to the back side of the button body 45. Flexible shaft 47
Has a surface covered with a skin tube 48, and a receiving plunger 49 is provided on one end side. The upper case 43 is provided with a guide cylinder 50 for guiding the plunger 46 and the receiving plunger 49. Mounting part 51 of guide tube 50
A rubber member 52 as an elastic member is provided between the button body 45 and the back side of the button body 45. The rubber material 52 is made of soft rubber or the like having appropriate elasticity, and has a hollow cylindrical shape. By the rubber material 52, a play gap 53 which is a play space of the button body 45.
Is provided. Reference numeral 54 denotes a spring for returning the flexible shaft 47. According to this embodiment, the rubber material 52
Thereby, it is possible to prevent water droplets from entering the inside of the guide cylinder 50. If the rubber material 52 is attached with an adhesive, the prevention effect can be further enhanced.

The drainage device according to the present invention is not limited to the above embodiment. For example, the size of the play gap may be determined based on the relationship between the elasticity of the elastic member. Further, the guide cylinder may be formed integrally with the upper case. As detailed above,
The drainage device according to the present invention can be appropriately changed according to the embodiment.

[0011]

According to the drainage device of the present invention, a play gap is provided between the button body and the flexible shaft by an elastic member. Therefore, even if the button body is touched during entering or exiting the bathtub during bathing, the movement of the button body is absorbed in the play gap. That is, the drain cock does not open. After all, there is no danger of empty firing when reheating,
Also, the amount of hot water stored in the bathtub does not extremely decrease or disappear.

[Brief description of the drawings]

FIG. 1, showing a first embodiment, is a cross-sectional view showing a connection state between a button main body and a flexible shaft.

FIG. 2, showing a second embodiment, is a cross-sectional view showing a connection state between a button body and a flexible shaft.

FIG. 3 is a partial cross-sectional view of a drainage device, showing a conventional technique.

[Explanation of symbols]

 1, 21, 41 ... drainage device 2, 22, 42 ... push button part 5, 25, 45 ... button body 9, 27, 47 ... flexible shaft material 32, 53 ... play gap

Claims (1)

(57) [Scope of request for utility model registration] 1. A drain device wherein a drain plug provided on a bottom surface of a bathtub is alternately opened and closed via a flexible shaft every time a button body of a push button portion provided on an upper edge surface of the bathtub is pressed. A drainage device for a bathtub, wherein a play gap is provided between the button body and the flexible shaft by an elastic member.