JPS6124256Y2 - - Google Patents

Description

[Detailed explanation of the idea] (Technical field) This invention relates to a bathtub whose bottom plate can be raised and lowered.

(Prior Art) In a conventional bathtub, a side plate and a bottom plate are integrally formed, and the distance from the upper end of the side plate to the bottom plate is constant.

Therefore, when the amount of hot water is large, you can take a relaxing bath with your head up to your shoulders and resting your head on the top of the side panel. However, when the amount of hot water decreases due to the use of hot water, the water depth becomes shallow and the bottom of the bathtub becomes shallow. I had to bury my body in the hot water in a cramped position, and I couldn't feel a sense of freedom.

Furthermore, when a child or the like takes a bath, if the distance from the top of the side plate to the bottom plate is long, there is a danger that the child may fall when stepping over the side plate, which is dangerous.

(Purpose of the invention) This invention allows the bottom plate to be moved up and down, so that even when the amount of hot water is low, you can take a bath with a sense of freedom without having to boil or add new water.
To provide a bathtub capable of eliminating danger when children, such as infants, step over the side plates by raising the bottom plate when taking a bath.

(Structure of the invention) The gist of this invention resides in a bathtub that is connected to a lifting device and can be raised and lowered freely, and that includes a bottom plate that is provided with water leakage prevention means.

(Example) Fig. 1 shows a sectional view of the bathtub of the first example.
In the bathtub 1 of this first embodiment, a side plate 3 with a heat insulating material 3a provided inside a decorative board 3b is vertically hung from a frame plate 5 in a circular or polygonal shape, and the inside of the side plate 3 has a shape corresponding to the inner peripheral shape of the side plate 3. The bottom plate 2 has water leak prevention means 4 such as a scraper 4a and a seal packing 4b on its outer periphery.
is arranged so as to be able to slide up and down with respect to the side plate 3 without water leakage.

A piston cylinder 7 is located below the bottom plate 2.
A lifting device 6 consisting of a piston rod 7a and a control unit 8 thereof is provided, and the upper end of a piston rod 7a in a piston cylinder 7 passes through the frame plate 5 and is connected to the lower surface of the bottom plate 2.

The control unit 8 includes a manual directional switching valve 8a and a flow rate adjustment valve 8b, the P port of the manual directional switching valve 8a is connected to a water faucet, the A port is connected to the I chamber of the cylinder 7b, and the B port is connected to the RO of the cylinder 7b. Each chamber is connected to the other, and the R port is for drainage.

A stopper 9 is provided on the bottom plate 2, and when the stopper 9 is removed, the hot water in the bathtub 1 is drained through a drain pipe 10.

Therefore, in this bathtub 1, if the manual direction switching valve 8a is operated to connect the P port and the A port, and the R port and the B port, the cylinder 7
Pressure water from the water supply from the P port flows into the A chamber of b, while water from the B chamber is drained from the B port through the R port, so the piston rod 7a rises.
The bottom plate 2 can be raised without hot water leaking, and the bottom plate 2 can be stopped at a desired position by operating the manual direction switching valve 8a again and closing each port, so even if the amount of hot water is low, a new The water level rises without adding water to boil it or adding new hot water, allowing the user to rest their head on the top of the side plate 3 and soak up to their shoulders, allowing them to bathe with a sense of freedom. Furthermore, when bathing an infant, by raising the bottom plate 2, the distance from the upper end of the side plate 3 to the bottom plate 2 can be shortened, thereby eliminating the risk of falling when stepping over the side plate 3.

When lowering the raised bottom plate 2, operate the manual direction switching valve 8a to connect the P port and the B port, and the R port and the A port, and the P port is connected to the R chamber of the cylinder 7b. Pressure water from the tap water flows in, and water in chamber A is drained from the A port through the R port, so the piston rod 7a descends and the bottom plate 2 can be lowered without hot water leaking.

Note that if the water drained from the R port is allowed to flow into the bathtub 1, water can be used without wasting it.

FIG. 2 shows a partial sectional view of the bathtub of the second embodiment, and this bathtub 11 has the same bottom plate 2, side plates 3, water leak prevention means 4, frame plate 5, etc. as the bathtub 1 of the first embodiment. In addition, the bathtub 1 of the first embodiment has a bottom plate 2.
The elevating device 16 for elevating and lowering is different.

The lifting device 16 for the bathtub 11 is composed of a bellows pump 17 interposed between the bottom plate 2 and the frame plate 5 and a control unit 18 thereof.

This control unit 18 is a manual directional switching valve 18a.
and a flow rate adjustment valve 18b, the manual direction switching valve 1
The P port of 8a is connected to a water faucet, the A port is connected to each bellows pump 17,
The B port is closed and the R port is for drainage.

Therefore, in this bathtub 11, if the manual directional switching valve 18a is operated to connect the P port and the A port, and the R port and the B port, respectively, the water pressure from the P port is transferred into the bellows pump 17. When water flows in, the bottom plate 2 can be raised without hot water leaking, and by operating the manual direction switching valve 18a again and closing each port, the bottom plate 2 can be stopped at a desired position. Operate 18a and press R.
By connecting the port to the B port and the R port to the A port, the bellows pump 17 contracts and the bottom plate 2 can be lowered without leaking hot water, which is similar to the bathtub 1 of the first embodiment. be effective.

FIG. 3 shows a partial sectional view of the bathtub of the third embodiment, and this bathtub 21 is equipped with a lifting device 26 that is different from the bathtubs 1 and 11 of the first and second embodiments.

This elevating device 26 passes through the frame plate 5 and the bottom plate 2
A rod 27 whose upper end is connected to the lower surface and a male thread is threaded on the outer periphery is rotatably supported by a support 31 of a holder 30 provided on the lower surface of the frame plate 5, and is connected to the rod 27 at its center of rotation. Engaging pulley 2
8 and a drive pulley 29 connected to the pulley 28 via a belt 32 and driven by a motor M.

Therefore, in this bathtub 21, when the motor M is rotated in the forward and reverse directions, the pulley 28 rotates via the drive pulley 29 and the belt 32, so the rod 27 that engages with the pulley 28 moves up and down, and the bottom plate 2 is rotated. It can be moved up and down freely without leaking hot water.
The same effects as the bathtubs 1 and 11 of the first and second embodiments are achieved.

Note that the third device is used to raise and lower the bottom plate 2.
In addition to transmitting the driving force of the motor M to the pulley 28 via the belt 32 of the embodiment, a spur gear is used for the pulley 28, and this spur gear is rotated by a worm gear or the like connected to the motor M to rotate the bottom plate 2. It may be configured to be raised and lowered, and various types can be applied.

In addition, in the first to third embodiments, the scraper 4a, the seal packing 4b, etc. are used as the water leak prevention means 4 between the bottom plate 2 and the side plates 3, but the bathtub formed by the bottom plate 2 and the side plates 3 It is also possible to prevent water leakage by disposing a bag-shaped waterproof sheet or the like having a bellows shape at a portion disposed on the side plate 3 on the inner circumferential surface. In this case, the connection pipe from the bathtub may be connected to, for example, a corner of the bottom plate using a telescopic bellows pipe or the like.

(Effects of the invention) The bathtub according to this invention is equipped with a bottom plate that can be raised and lowered freely by connecting the lifting device and is equipped with water leakage prevention means, so even when the amount of hot water is low, it is easy to add new water. By raising the bottom plate without boiling or adding new water, the water level of the hot water can be raised, and the user can rest his head on the upper end of the side plate and soak up to his shoulders, allowing him to take a bath with a sense of freedom.
Additionally, when bathing an infant, etc., the bottom plate can be raised to shorten the distance from the top of the side plate to the bottom plate, eliminating the risk of falling when stepping over the side plate. This has the advantage of being convenient because it can be done by raising the bottom plate.

[Brief explanation of the drawing]

Fig. 1 is a sectional view showing a bathtub according to the first embodiment of this invention, Fig. 2 is a partial sectional view showing a bathtub according to the second embodiment, and Fig. 3 is a partial sectional view showing a bathtub according to the third embodiment. be. 1, 11, 21...bathtub, 2...bottom plate, 4...
Water leak prevention means, 6, 16, 26...lifting device.

Claims (1)

[Scope of utility model registration request] A bathtub that is connected to a lifting device so that it can be raised and lowered freely, and that has a bottom plate that is equipped with water leakage prevention means.