JP2630800B2 - Water discharge device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water discharge device, and more particularly to a water discharge device used for an indoor or outdoor digestion plug or the like.

The fire hydrant, which has been widely used in the past, is a fire hose type hose with rubber lining on the inner surface of a tubular woven fabric, folded in a zigzag and stored in a fire hydrant box. When doing this, it was necessary to take out the entire length from the fire hydrant box and extend it, and if the hose was bent, it became impossible to pass water, making it difficult for inexperienced people to even satisfactorily pass water. .

Therefore, in recent years, there has been a demand for a fire hydrant which can be housed in a fire hydrant box in a state in which the hose is wound around a winder, and can be passed through the wind while being wound on the winder.

2. Description of the Related Art Fire hydrants of this type are generally wound around a hose, such as a rubber hose, that always keeps a circular cross section.
The hose is heavy, and the thickness of the hose is large, making it difficult to handle, and the fire hydrant becomes large, which is not preferable.

Therefore, if a conventional fire hose type hose can be wound around a winder and stored in a fire hydrant box, it will be light and easy to handle, and the fire hydrant will also be compact. Hose-type hoses are usually folded flat, and cannot be swollen even if you try to pass water while wound around the winder,
Can not be used.

As a solution to this problem, Japanese Patent Application Nos. 62-271500, 62-317152, and 62-317152, filed by the applicant earlier.
There are inventions of applications such as Japanese Patent Application No. 317153 and Japanese Patent Application No. 62-331771.

In these devices, the winding frame of the winder can be radially reduced, and the water pressure applied to the hose during water flow causes the winding frame to shrink radially, thereby expanding the hose into a cylindrical shape. It is designed to forgive.

Problems to be Solved by the Invention According to these inventions, it is possible to use a hose of the fire hose type, which has not been able to pass water while being wound on a reel, and to pass water while being wound on a reel. This has enabled the fire hydrant to be more compact and, at the same time, to be able to discharge water at high pressure, but this has created new problems.

That is, the hose of the fire hose type has a lining formed on the inner surface of a tubular woven fabric as described above, and the tubular woven fabric is formed by weaving a high-strength warp yarn and a weft yarn in a tubular shape. Therefore, when the hose is inflated into a cylindrical shape, it is difficult to bend, and tends to extend linearly when an internal pressure is applied. However, since the hose wound on the reel is curved, when water flows through the hose and an internal pressure is applied, and a force is exerted on the hose to extend linearly, the force draws the hose from the reel. Acting on the reel, the reel begins to rotate in the hose payout direction.

Therefore, when the water is discharged, the hose may be unreeled from the reel, and the hose may come off the outer periphery of the reel, or the hose may be entangled or bend locally to cause a kink phenomenon, thereby preventing water from flowing. is there.

As a means for solving these problems, it is possible to solve this problem to some extent by applying resistance to the rotation of the reel with brake means, but the hose once drawn out of the reel remains slack unless the reel is rotated again. Yes, hoses are easily entangled and kinked.

This tendency also exists in ordinary rubber hoses and the like, but is particularly remarkable in fire hose types. In recent years, as a hose with a special form of fire hose type that can be wound on a reel, weaving a metal wire or synthetic resin bristle into the weft of a tubular woven fabric to prevent it from flattening, Although a lined hose has been proposed and attracted attention, the above-mentioned phenomenon is remarkable in this type of hose.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and prevents a reel from rotating inadvertently when a water flows, and prevents a hose from being fed out, and also applies a rotational force to the reel in a hose winding direction. It is an object of the present invention to automatically return the hose to the reel even if the hose is slightly extended, and to prevent the hose from becoming entangled or kinked except for slack generated in the hose.

Means for Solving the Problems Accordingly, the present invention provides a water discharge device that rotatably mounts a reel on a base and passes water through a hose wound around the reel through a shaft of the reel. One end of the spring means is fixed to one side, the other end of the spring means is frictionally engaged with the other of the base or the reel via friction means, and the spring is rotated when the reel is rotated in a hose pulling-out direction. Elastic deformation is accumulated in the means, and when the amount of deformation exceeds a predetermined amount, the friction means slips to allow the hose to be pulled out, and the reel is rotated in the hose winding direction by the elastic deformation of the spring means. It is characterized in that force is applied.

In the present invention, since resistance is given to the rotation of the reel, the rotating reel does not rotate due to the force of the hose trying to extend linearly when water is passed through the hose.

When the reel rotates in the direction in which the hose is pulled out, the friction means is not given a rotational displacement due to frictional resistance, and elastic deformation is first accumulated in the spring means by rotation of the reel. Next, when the amount of deformation of the spring means exceeds a predetermined amount, the friction means slips, the reel can rotate while resisting the frictional resistance of the friction means, and the hose can be pulled out.

When the reel is stopped after the necessary length of the hose is pulled out, the reel rotates excessively due to the inertial force of the rotation of the reel and the force that causes the hose to extend linearly when internal pressure is applied to the hose. May have been withdrawn extra. At this time, the friction means does not cause relative rotation due to frictional engagement, rotation is given to the reel in the hose winding direction by the elastic force of the spring means, and the reel winds a loose hose, and the hose is slightly wound. To give a tensile force.

An embodiment of the present invention will be described below with reference to the drawings. 1 to 3 show one embodiment of the water discharge device of the present invention. Reference numeral 1 denotes a base, on which a shaft 2 is fixed, and on which a reel 3 is rotatably supported. The reel 3 has a pair of side plates 4a, 4b provided at both ends of the shaft 2 so as to face each other, and the side plates 4a, 4b.
A hose 6 is wound around the wound bed 5 attached between the wound floors. The shaft 2 is a hollow tube, and a fitting 7 for a hose 6 is provided between the side plates 4a and 4b.
Is provided, and a water pipe 8 is fixed between the base 1 and the side plate 4a. Then, the water is passed from the water supply pipe 8 to the inside of the shaft 2, and from the fitting 7 to the hose 6.

Reference numeral 9 denotes a rotary plate rotatably fitted to the shaft 2, and a spring means 10 is interposed between the rotary plate 9 and one side plate 4a. A friction member 12 is attached to the side surface of the base 1 via a helical spring 11, and the friction member 12 is pressed against the side surface of the rotating plate 9. Further, a restraining member 13 is fixed to the base 1 in proximity to the friction member 12.

When the reel 3 rotates in the hose pulling-out direction, a rotating force also acts on the rotating plate 9 via the spring means 10, but the friction member 12 acts on the rotating plate 9 by the action of the restraining member 13 as shown in FIG. As shown by the solid line, a strong frictional resistance is given, so that its rotation is suppressed. Therefore, only the reel 3 rotates in the direction of the arrow in FIG. 2 without rotating the rotating plate 9, and the spring means 10 is extended.

Further, when the reel 3 rotates and the amount of deformation of the spring means 10 exceeds a predetermined amount, the elastic force of the spring means 10 overcomes the frictional resistance between the friction member 12 and the rotating plate 9 and the rotating plate 9 Start to rotate with resistance. Thereby, the hose 6 can be pulled out from the reel 3.

When the hose 6 becomes slack and the tension applied to the hose 6 decreases, the reel 3 rotates in the direction opposite to the arrow due to the elasticity of the spring means 10, and the slack hose 6 is wound around the reel 3 to loosen the hose 6. Is removed.

After the hose 6 is used, when the reel 3 is rotated to wind the hose 6, the rotating plate 9 is also rotated in the direction opposite to the arrow via the spring means 10 with the rotation of the reel 3. At this time, as indicated by a chain line in FIG. 3, the friction member 12 swings in a direction away from the restraining member 13, so that the frictional resistance applied to the rotating plate 9 is reduced, and the reel 3 is easily rotated with a small force. Can be done.

4 to 7 show another embodiment of the present invention. In this embodiment, a shaft 2 is rotatably supported on a base 1, and a reel 3 is fixed to the shaft 2. A barrel 14 is fixed to the side surface of the base 1, and a spiral spring 15 as a spring means is accommodated in the barrel 14.

The vortex spring 15 has a through hole 16 at the inner end thereof, and the outer end thereof is pressed against the inner surface of the barrel 14.

On the other hand, a projection 18 having a taper 17 is provided on the outer periphery of the shaft 2 so that the projection 18
The engagement and disengagement of the through holes 16 of the 15 are possible.

When the reel 3 rotates in the direction in which the hose 6 is pulled out, the shaft 2 rotates in the same direction, that is, the direction of the arrow in FIG.
Engages. Therefore, the helical spring 15 is rotated by the shaft 2 at the inner end thereof while being frictionally engaged by being pressed against the inner surface of the barrel 14 due to its elastic force, and is wound up to accumulate elasticity.

When the rotation amount of the reel 3 exceeds a predetermined amount, the vortex spring
The elasticity of 15 overcomes the frictional resistance between the spiral spring 15 and the barrel 14, and the spiral spring 15 slips with respect to the barrel 14,
The hose 6 can be pulled out by rotating the reel 3 while giving the frictional resistance.

When the pulling out of the hose 6 is stopped and the hose 6 becomes slack, the reel 3 rotates in the winding direction of the hose 6 by the elastic force of the spiral spring 15 and winds the hose 6 to remove the slack.

When using the hose 6 and winding it around the reel 3,
When the reel 3 is rotated in the hose winding direction, the projection 18 is separated from the through hole 16 by the action of the taper 17 as shown in FIG.
Can be involved.

8 to 10 show still another embodiment of the present invention. In this embodiment, the base 1 has the shaft 2
Are mounted rotatably, and a reel 3 is fixed to the shaft 2. A wheel 19 is fixed to the shaft 2, and a belt 20 is hung on the wheel 19. A restraining member 21 is attached to one end of the belt 20, and the restraining member 21 and a casing fixed to the base 1 are provided.
A spring member 23 is interposed between the spring member 22 and the spring 22. The expansion and contraction range of the spring member 23 is limited by stoppers 24 and 25 with which the restraining member 21 contacts.

A weight 26 is attached to the other end of the belt 20.

Thus, the restraining member 21 normally moves down due to the elasticity of the spring member 23 and contacts the lower stopper 25, and the weight 26 is pulled up via the belt 20.

Here, when the reel 3 rotates in the hose withdrawing direction, the wheel 19 also rotates in the same direction, that is, in the direction of the arrow, and the belt 20 moves in the same direction with the wheel 19 due to friction with the wheel 19, and the spring member 23 Extend and weight
26 moves down.

When the restraining member 21 moves upward and comes into contact with the stopper 24, the movement of the belt 20 stops, and thereafter, the wheel 19
The hose 6 can be pulled out of the reel 3 while rotating against the frictional resistance of the hose 3.

When the hose 6 is loosened after the hose 6 is pulled out, the wheel 19 rotates in the direction opposite to the arrow due to the elasticity of the spring member 23, and the reel 3 also rotates in the same direction.
Engulf.

When the reel 3 is rotated in the winding direction of the hose 6 after using the hose 6, the wheel 19 rotates in the direction opposite to the arrow, but the resistance at this time is only the friction between the wheel 19 and the belt 20 caused by the weight of the weight 26. Therefore, the resistance is small and the hose 6 can be easily wound.

According to the present invention, since resistance is given to the rotation of the reel 3, water pressure is applied to the hose 6 so that the hose 6 tries to extend linearly. Even if a rotational force acts, the rotational force is suppressed by the resistance, the reel 3 does not rotate and the hose 6 is not carelessly fed, and the hose 6 does not get entangled or kink. .

When the hose 6 is pulled out from the reel 3 while discharging water, if the hose 6 is pulled, the reel 3 is rotated against the frictional resistance applied to the reel 3, and the hose 6 can be pulled out over a required length. it can. In addition, the force required to pull out the hose 6 depends on the resistance to rotation of the reel 3 and the hose 6.
And the force corresponding to the difference between the rotational force of the reel 3 generated by pressurizing the hose 6 and the hose 6 can be easily pulled out with a small force without applying unnecessarily large resistance.

If the reel 3 excessively rotates after the hose 6 is pulled out and the hose 6 becomes loose, the reel 3 is rotated in the hose winding direction by the elastic force of the spring means, and the hose 6 is wound. Hose 6 to remove slack
Is not loosened and kinks are not generated.

Further, after the water discharge is completed, the reel 6 can be rotated and the drawn hose 6 can be wound around the reel 3 again. Further, in the structure shown in each embodiment, since the resistance to the reel 3 by the friction means is small in the hose winding direction, the winding can be easily performed.

[Brief description of the drawings]

1 to 3 show an embodiment of the present invention, wherein FIG. 1 is a central longitudinal sectional view, FIG. 2 is a II-II sectional view,
FIG. 3 is a sectional view taken along the line III-III. 4 to 7 show another embodiment of the present invention. FIG. 4 is a longitudinal sectional view at the center, FIG. 5 is a sectional view taken along the line VV, and FIGS. FIG. 6 is an enlarged view showing an operation state of a main part in FIG. 5. 8 to 10 show still another embodiment of the present invention, wherein FIG. 8 is a central longitudinal sectional view, FIG. It is an enlarged view of a principal part. 1 ... Base 2 ... Shaft 3 ... Reel, 6 ... Hose 10,15,23 ... Spring means 9,12,14,15,19,20 ... Friction means

Claims (1)

(57) [Claims] A reel (3) is rotatably mounted on a base (1), and water is passed through a shaft (2) of the reel (3) to a hose (6) wound around the reel (3). In the water discharging device, one end of a spring means (10, 15, 23) is fixed to one of the base (1) or the reel (3), and the other end of the spring means (10, 15, 23) is connected to a friction means. (9,12,14,15,19,20) through friction engagement with the other of the base (1) or the reel (3), and when the reel (3) is rotated in the hose pull-out direction Elastic deformation is accumulated in the spring means (10, 15, 23), and when the amount of deformation exceeds a predetermined amount, the friction means (9, 12, 14, 15, 19, 20) slips and the hose ( 6)
Characterized in that the reel (3) is energized with a rotational force in the hose winding direction by elastic deformation of the spring means (10, 15, 23).