JPH0452135B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a shower device that reciprocates a shower nozzle up and down, and specifically relates to a technique for smoothly raising and lowering a shower nozzle over a long period of time.

[Prior Art] Recently, shower devices have been recognized as having features such as ease of preparation for bathing, water saving, and energy saving, and have become established as a convenient means of bathing. On the other hand, as social needs for health promotion have increased, attention has been focused on the skin irritation and thermal stimulation effects caused by the spray pressure of showers. In other words, a stimulating hot bath increases blood flow, activates various functions such as the circulatory system, respiratory system, and autonomic nervous system, and is effective for relaxing the mind and body, recovering from fatigue, and beautifying. has been recognized.

In order to increase these effects, the key is to make the stimulating effects of the jet water last as long as possible by varying the temperature and water pressure of the jet water. To this end, attempts have been made to move the shower head itself up and down and back and forth in order to avoid spraying water from hitting the same position on the body as much as possible, and conventionally a drive system using a hydraulic cylinder has been adopted.

As shown in Fig. 6a, this type of system attempts to change the direction of the water flow sent into the hydraulic cylinder 1' by passing it through a directional control valve 30, so that it can continuously move up and down. It is something to do. That is, the shower nozzle 6' is driven up and down by fixing a slider 5' to a wire 4' connected to a piston 2' in a hydraulic cylinder 1', and attaching the shower nozzle 6' to this slider 5'.

[Problems to be Solved by the Invention] In the conventional example as described above, as shown in FIG.
16' is operated to reverse the switching valve 30, tension is generated in one of the wires 4' connecting the piston 2' and the slider 5', and as a reaction, the other wire 4' becomes slack, and when the switch valve 30 is reversed, the wire 4' becomes slack. There was a problem that the slack could not be recovered instantaneously and the wire 4' came off the pulley 3'.

The present invention was made in view of these problems, and its purpose is to simplify the assembly work, obtain wire tension with a simple configuration, and
To provide a shower device that absorbs elongation and slack of the wire, obtains wire tension for stable drive, improves reliability and stability of slider drive, and allows smooth reversing operation. .

[Means for Solving the Problems] The shower device of the present invention is a shower device that uses a hydraulic cylinder 1 to reciprocate a shower nozzle 6 up and down. A wire 4 is connected between the upper and lower sides of the provided slider 5 via the upper and lower pulleys 3.
The slider 5 is fitted into the guide groove 10a of the guide rail 10 so as to be vertically movable, the guide rail 10 is provided with a notch 43, and a pulley fixing base 49 is provided for supporting the cap 40 of the hydraulic cylinder 1 and the pulley 3. A protrusion 45 and a wing 46 are respectively provided in the guide groove 1.
0a and cut out the protrusion 45 43.
It is configured by fitting and attaching it.

Further, tension is applied to the wire 4 in a loop formed by connecting the upper and lower pistons 2 in the hydraulic cylinder 1 and the upper and lower sides of the slider 5 provided with the shower nozzle 6 with the wires 4 via the upper and lower pulleys 3. A pulley fixing base 49 for supporting the pulley 3 is slid along the guide rail 10 and fixed.

[Function] In this way, the guide groove 10a of the guide rail 10
A notch 43 is provided in the guide rail 10, and a protrusion 45 and a wing 46 are attached to a pulley fixing base 49 for fixing the cap 40 and pulley 3 of the hydraulic cylinder 1, respectively. These protrusions 45 are cut out 4.
By fitting the wing portion 46 into the guide groove 10a and attaching it to the guide groove 10a, the tension of the wire 3 can be obtained with a simple structure.

Further, tension is applied to the wire 4 in a loop formed by connecting the upper and lower pistons 2 in the hydraulic cylinder 1 and the upper and lower sides of the slider 5 provided with the shower nozzle 6 to the wire 4 via the upper and lower pulleys 3. By arranging a spring material 34 for the purpose of the wire 4 and sliding and fixing the pulley fixing base 49 supporting the pulley 3 along the guide rail 10, the elongation of the wire 4 is absorbed and the slack of the wire 4 is reduced. It's gone.

[Examples] Examples of the present invention will be described in detail below with reference to the accompanying drawings.

As shown in Fig. 1, the shower device has a piston 2 arranged in a vertical hydraulic cylinder 1 so as to be able to move up and down in the vertical direction, and a wire 4 wound around wire pulleys 3, 3 is tightly tied to the piston 2. A slider 5 is connected to the wire 4, and a shower nozzle 6 is fixed to the center of the slider 5.
A drive mechanism section consisting of various components such as a hydraulic cylinder 1 for reciprocating the shower nozzle 6, a wire 4, and a four-way valve 7, which will be described later, is covered with a casing 8 as shown in FIG. 1c. , a long slit 9 is formed in the center of the casing 8. Along this slit 9, a pair of guard rails 10 are vertically disposed inside the casing 8 so as to face each other laterally. Guide grooves 10a are provided on opposing surfaces of the guide rail 10 so as to face each other. The left and right ends of the slider 5 are slidably fitted into the guide groove 10a of the guide rail 10, and the shower nozzle 6 provided at the center of the slider 5 is inserted into the slit 9 as shown in FIG.
I have made it to you. In the figure, 22 is a hose for supplying water and hot water to the shower nozzle 6.

As shown in FIG. 1a, the driving water passes through the four-way valve 7, enters the upper pressurizing chamber 11 of the hydraulic cylinder 1, pushes down the piston 2, and enters the lower pressurizing chamber 12 of the hydraulic cylinder 1. The water is drained through the four-way valve 7. Piston 2 like this
The shower nozzle 6 is raised via the wire 4 and the slider 5 by the downward movement of the slider 5 . When the shower nozzle 6 reaches the upper limit position, it kicks the height adjustment clamp 13 above the reversing mechanism, and the height adjustment clamp 13
The four-way valve 7 is switched by pushing up a slide rod 14 that is integrally attached to the four-way valve 7. By switching the four-way valve 7, the driving water enters the lower pressurizing chamber 15 of the hydraulic cylinder 1, pushes up the piston 2, and passes through the wire 4 and slider 5 to the shower nozzle 6.
is lowered, and the water in the upper pressurizing chamber 11 is drained via the four-way valve 7. When the shower nozzle 6 is lowered to the lower limit position, the lower height adjustment clamp 16 is kicked, the slide rod 14 is lowered, the four-way valve 7 is switched, and the initial state is returned.
The shower nozzle 6 is raised again. From now on, this kind of operation will be repeated.

As shown in Figure 4b, in its horizontal cross-sectional state,
A shower nozzle 6 is located in the center of the casing 8, and guide rails 1 are provided on both sides of the shower nozzle 6.
0 is arranged, and a slider 5 integrated with a shower nozzle 6 is slidably inserted into the guide rail 10. A wire 4 is connected to the slider 5. As shown in FIG. 2b, fittings 39 are provided at the top and bottom of the hydraulic cylinder 1 to guide water to the four-way valve 7, and a wire packing 41 is inserted and fixed to prevent water from leaking from the wire 4. The cap 40 of the hydraulic cylinder 1, to which a wire stopper 42 can be attached, is inserted. The cap 40 has a fitting shape that fits into the guide groove 10a of the guide rail 10, so that the hydraulic cylinder 1 and the guide rail 10 can be easily positioned. Here, the guide rail 10 is provided with the above-mentioned guide groove 10a and the notch 43. On the other hand, the cap 40 and the pulley fixing base 49, which will be described later, are each provided with a wing portion 46 for fitting into the guide groove 10a and a projection portion 45 for fitting into the notch 43. And cap 4
0, the wing part 46 is fitted into the guide groove 10a and the protrusion part 45 is fitted into the notch 43 for positioning, and the wing part 46 is fixed to the guide rail 10 by screws 50. By positioning the parts by fitting in this way, the parts can be installed without rattling, and work efficiency is improved. The piston 2 and the wire 4 are connected by providing a terminal fitting 38 at the end of the wire.
The terminal fitting 38 is fixed by screwing the wire stopper 44 to the piston 2. The wire 4 connected to the piston 2 passes through a wire packing 41 and a wire stopper 42 in the cap 40 to the pulley fixing base 4.
It is connected to the slider 5 via the pulley 3 which rotates around a pulley shaft 37 on the slider 9 . As shown in FIG. 5, the wire connection portion of the slider 5 is comprised of a wire hook 36, a spring shaft 35, and a spring material 34 such as a compression spring. Terminal fitting 3 at the end of wire 4
8 into the wire hook 36, the wire 4 and the wire connection portion are connected. In this case, the structure is such that the tension of the wire 4 is obtained by the restoring force of the spring material 34 built into the slider 5. The pulley fixing base 49 has a projection part 45 and a wing part 46 like the cap 40 described above, and also has a notch 43 of the guide rail 10 and a guide groove 1.
It has a shape that allows it to slide in the vertical direction along 0a. That is, the wing portion 46 is slidably fitted into the guide groove 10a, and the protrusion portion 45
It has a structure in which it is slidably fitted into the notch 43, so that it can slide smoothly in the vertical direction. When inserting the terminal fitting 38 of the wire 4 into the wire hook 36, do so with the pulley fixing base 49 and the cap 40 in contact (in this case, the cap 40 is fixed to the guide rail 10, and the pulley fixing base 49 is not fixed). After insertion, slide the pulley fixing base 49 against the notch 43 of the guide rail 10 in the direction of compression of the spring material 34 (in the direction of the arrow in FIG. 3A), and fix the wing part 46 with the screw 50. The wire 4 can be easily stretched with a constant tension. In this structure, cap 4
Since a lever jig such as a screwdriver can be inserted and fixed between the pulley fixing base 49 and the pulley fixing base 49, assembly is extremely easy.

[Effects of the invention] As described above, the upper and lower pistons in the hydraulic cylinder and the upper and lower sliders provided with shower nozzles are connected by wires via upper and lower pulleys, and the slider can be moved up and down in the guide groove of the guide rail. A notch is provided in the guide rail, a protrusion and a wing are provided on the pulley fixing base for supporting the cap and pulley of the hydraulic cylinder, respectively, and these wings are fitted into the guide groove and the protrusion is cut. Since it is installed by fitting into the notch, the cap can be easily positioned, and the pulley fixing base can be moved along the guide rail with a simple configuration, making it easy to tension the wire to drive the slider at a stable speed. This has the advantage of improving assembly workability.

In addition, a spring material is placed in the loop formed by connecting the top and bottom of the piston in the hydraulic cylinder and the top and bottom of the slider equipped with the shower nozzle with a wire via the top and bottom pulleys to apply tension to the wire. However, since the pulley fixing base that supports the pulley is configured to slide and be fixed along the guide rail, the stretch of the wire is absorbed by the spring material, eliminating slack in the wire and guiding the pulley fixing base. By sliding and fixing along the rail,
It is possible to set an appropriate wire tension by absorbing wire elongation and slack, and smooth up and down movement.

[Brief explanation of the drawing]

Figures 1 a, b, and c are schematic explanatory diagrams of the present invention, schematic explanatory diagrams and overall perspective views showing the four-way valve in an inverted state, and Figures 2 a, b are side views and partially cutaway views of the entire drive mechanism. Front view, Figures 3a and b are rear views and exploded perspective views of the attachment part of the hydraulic cylinder cap and pulley fixing base, and Figures 4a and b are plan cross-sectional views of the guide rail fixing base and a flat view of the slider part. 5 is a partially broken front view of the slider portion, and FIGS. 6a and 6b are a schematic explanatory view and a perspective view of a conventional example, in which 1 is a hydraulic cylinder, 2 is a piston, 3 is a pulley, 4 is a wire, 5 is a slider, 6 is a shower nozzle, 10 is a guide rail,
10a is a guide groove, 11 is an upper pressurizing chamber, 15 is a lower pressurizing chamber, 34 is a spring material, 40 is a cap, 43
45 is a notch, 45 is a projection, 46 is a wing, and 49 is a pulley fixing base.

Claims (1)

[Scope of Claims] 1. A shower device that uses a hydraulic cylinder to reciprocate a shower nozzle up and down, in which a wire is connected between the top and bottom of a piston in the hydraulic cylinder and the top and bottom of a slider provided with a shower nozzle via upper and lower pulleys. The slider is fitted into the guide groove of the guide rail so as to be movable up and down, the guide rail is provided with a notch, and the protrusion and wing portion are respectively attached to the pulley fixing base for supporting the cap and pulley of the hydraulic cylinder. A shower device characterized in that the wing portions are fitted into guide grooves and the protrusions are fitted into notches. 2. A spring material is arranged to apply tension to the wire in a loop formed by connecting the top and bottom of the piston in the hydraulic cylinder and the top and bottom of the slider provided with the shower nozzle with a wire via the top and bottom pulleys, 2. The shower device according to claim 1, wherein a pulley fixing base for supporting the pulley is slidably fixed along a guide rail.