JPH06623B2 - Water discharge device - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water discharger, and more particularly to a water discharger for use in indoor or outdoor fire hydrants.

A fire hydrant that has been widely used in the past is a fire hose with a rubber lining on the inner surface of a tubular woven fabric that is folded in a zigzag and stored in a fire hydrant box. Had to take the entire length out of the fire hydrant box and extend it, and if the hose was bent it would not be able to pass water, making it difficult for even an unfamiliar person to pass water.

Therefore, in recent years, there has been a demand for a fire hydrant that allows a hose to be stored in a fire hydrant box while being wound around the winder and allows water to pass through while being wound around the winder.

Conventional technology As this kind of fire hydrant, it is common to wind a hose such as a rubber hose that always holds a circular cross section, but the hose is heavy and the wall thickness of the hose is thick, making it difficult to handle.
In addition, 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 be compact, but A hose of a hose type is normally folded flat, and when it is wound around the winder as it is, it cannot be used because it cannot bulge in a circle when trying to pass water.

As a solution to this point, there is the invention of Japanese Patent Application No. 62-271500 filed by the applicant earlier.

This allows the winding frame of the winder to be reduced in the radial direction, and allows the hose to shrink in the radial direction due to the water pressure applied to the hose during water passage, allowing the hose to expand into a cylindrical shape. It is like this.

Problems to be Solved by the Invention Although the invention of this application was basically excellent, any of the specific examples described in the application had a complicated structure or a hose. The winding frame was easily shrunk due to the force of winding, and there was no room for shrinking when water was passed, so the desired effect could not be achieved.

Further, in these products, the hose can only be wound in a single layer or at most double layers on the bobbin, and the length of the hose that can be wound for the size of the winder is short.

The present invention has been made in view of the above circumstances, and it is possible to wind a sufficiently long hose on a compact winder while utilizing the basic principle of the invention, and to provide a simple structure at low cost. It is also an object of the present invention to provide a specific structure that allows the hose to be wound easily, and that the hose can be swollen by reducing the diameter when passing water, and that the hose can be passed. It is a thing.

Means for Solving the Problems The first aspect of the present invention rotatably supports a reel on a support, and the reel has a plurality of concentric annular winding beds centered on the rotation axis thereof. A hose that is foldable in a radial direction and has a roll bed other than the innermost part that is rotatable with respect to each other and with respect to the reel, and has one end connected to the water supply source via the rotary joint of the reel rotation shaft through a rotary joint. Is wound around the innermost bobbin, and is then wound around the outermost bobbin in a single layer, respectively.

A second invention is an invention of a more specific structure of the first invention, which rotatably supports a reel with respect to a support, and the reel includes a shaft supported by the support and a shaft supported by the support. Flanges attached to both sides of the shaft, plural pairs of concentric annular restraining portions are formed on opposite surfaces of the flanges, and a plurality of elastic plates are curved in a circular shape. And a side wall of each of the winding floors is fitted between the restraining portions so as to be movable in the radial direction of the flange, and is aligned with the outer restraining portions, and except the innermost side. Is freely rotatable with respect to the flange, and a flatly folded hose having one end connected to the water supply source from the shaft through the rotary joint is wound around the innermost reel,
It is characterized in that it is successively wound around the outer reels in a single layer.

1 and 2 show a water discharge device of the second invention. Reference numeral 1 is a base as a support, on which a reel 2 is rotatably supported. The reel 2 comprises a shaft 3 supported by the base 1 and flanges 4 and 4 provided at both ends of the shaft 3, and a water passage 5 is formed at one end of the shaft 3 along the central axis thereof. It is connected to the water supply port 6 formed on the outer circumference of the shaft 3. A water supply hose 8 is connected to the end of the water supply path 5 via a rotary joint 7, and the water supply hose 8 is connected to a water supply source. Then, while rotating the reel 2, water can be supplied from the water supply hose 8 to the water supply port 6 via the water supply passage 5.

A plurality of annular grooves 9a, 9b, 9c are concentrically formed on the surfaces of the flanges 4 and 4 facing each other, and the outer peripheral surface and the inner peripheral surface of each groove 9a, 9b, 9c are respectively formed. The restraining portions 10a, 11a, 10b, 11b, 10c, 11c are formed in pairs. The widths of the grooves 9a, 9b, 9c are the width of the winding floor 12 described later.
It is appropriate that the distance is sufficiently larger than the thickness of the plates 13a, 13b, 13c forming the a, 12b, 12c, and the intervals of the radius or diameter of the hose 14 are set.

Reference numerals 12a, 12b, 12c are rolls, and are plates 13a, 13b, made of elastic material such as metal or hard plastic.
13c is curved in an annular shape, and both side edges thereof are fitted into the grooves 9a, 9b, 9c of the flanges 4 and 4, respectively.
a, 13b, 13c are the restraining portions 10 of the grooves 9a, 9b, 9c, respectively.
It is movable in the radial direction between a, 11a, 10b, 11b, 10c, 11c, and forms a cylindrical winding floor 12a, 12b, 12c along the outer restraining portions 10a, 10b, 10c. ing.

The winding floor 12 is rotatable with respect to the flanges 4 and 4 except for the innermost one 12a.

A third invention is also a more concrete structure of the first invention, in which the reel is rotatably supported with respect to the support,
The reel has a shaft supported by the support and flanges attached to both side portions of the shaft, and is rotatable with respect to the flange to the outside in the circumferential direction of the flange with respect to each other by a single rotation or more. Rings are arranged, annular restraining portions forming concentric pairs are formed on opposing surfaces of the flange and each rotary ring, and a plurality of winding plates are formed by annularly bending an elastic plate, A flat plate in which both ends of each roll bed are fitted between the restraining portions so as to be movable in the radial direction of the flange, along the outer restraining portion, and one end of which is connected from the shaft to a water supply source via a rotary joint. It is characterized in that the hose folded in a single manner is wound around the innermost reel, and then sequentially wound around the outer reel.

FIG. 3 shows an example of the water discharger of the third invention. Reference numeral 1 is a base as a support, on which a reel 2 is rotatably supported. The reel 2 comprises a shaft 3 supported by the base 1 and flanges 4 and 4 provided at both ends of the shaft 3, and a water passage 5 is formed at one end of the shaft 3 along the central axis thereof. It is connected to the water supply port 6 formed on the outer circumference of the shaft 3. A water supply hose 8 is connected to the end of the water supply path 5 via a rotary joint 7, and the water supply hose 8 is connected to a water supply source. Then, while rotating the reel 2, water can be supplied from the water supply hose 8 to the water supply port 6 via the water supply passage 5.

The rotating rings 15, 15, 16, 16 having a thickness of 1 or more are fitted around the outer circumferences of the flanges 4, 4, and the bearings 17, 17, 18, 18 are provided to the flanges 4, 4 and the rotating ring 15 which are adjacent to each other. , 15, 16, 16 are rotatable.

The flanges 4, 4 and the rotating rings 15, 15, 16,
Concentric circular grooves 9a, 9b, 9c are engraved respectively on the surfaces of 16 facing each other, and the grooves 9a, 9b, 9c are formed.
The outer peripheral surface and the inner peripheral surface of the pair form a pair, and the restraining portion 10a,
11a, 10b, 11b, 10c and 11c are formed. The widths of the grooves 9a, 9b, 9c are the winding floors 12a, 12b, 12 to be described later.
It is appropriate that the distance is sufficiently larger than the thickness of the plates 13a, 13b, 13c forming c, and the intervals are about the radius or diameter of the hose 14.

Reference numerals 12a, 12b, 12c are rolls, and are plates 13a, 13b, made of elastic material such as metal or hard plastic.
13c is curved in an annular shape, and its both side edges are provided with the flanges 4, 4 and the rotary rings 15, 15, 16, 1.
6 are fitted in the grooves 9a, 9b, 9c, and the plates 13a, 13b,
Denoted by 13c are the restraining portions 10a, 11a of the grooves 9a, 9b, 9c, respectively.
It is movable in the radial direction between 10b, 11b, 10c and 11c, and forms cylindrical winding floors 12a, 12b and 12c along the outer restraining portions 10a, 10b and 10c.

FIG. 4 shows another example of the water discharger of the third invention. Reference numeral 1 is a base as a support, on which a reel 2 is rotatably supported. The reel 2 comprises a shaft 3 supported by the base 1 and flanges 4 and 4 provided at both ends of the shaft 3,
A water supply channel 5 is formed at one end of the
It is connected to a water supply port 6 formed on the outer circumference of the shaft 3. A water supply hose 8 is connected to the end of the water supply path 5 via a rotary joint 7, and is connected to a water supply source.

Two sets of rotating members 19, 19, 20, and 20 are provided on the sides of the flanges 4 and 4, respectively.
It is provided rotatably with respect to the shaft 3 via 1, 22, 22, and each of the rotating members 19, 19, 20, 20
The outer circumference of the rotating ring 15,15,16,1
6 is fitted.

The flanges 4, 4 and the rotating rings 15, 15, 16,
Concentric circular grooves 9a, 9b, 9c are engraved respectively on the surfaces of 16 facing each other, and the grooves 9a, 9b, 9c are formed.
The outer peripheral surface and the inner peripheral surface of the pair form a pair, and the restraining portion 10a,
11a, 10b, 11b, 10c and 11c are formed.

Then, the side edges of the winding floors 12a, 12b, 12c formed by bending the plates 13a, 13b, 13c in an annular shape have the flanges 4, 4 respectively.
And the grooves 9a, 9b, 9 of the rotating rings 15, 15, 16, 16.
It is fitted to c so as to be movable in the radial direction, and the outer restraining portion 1
Cylindrical winding bed 12a, 1 along 0a, 10b, 10c
2b and 12c are formed.

In each of the above drawings, 14 is a hose. The hose 14 is a fire hose type in which a rubber lining is applied to the inner surface of a tubular woven fabric, and is normally folded flat so that it cannot hold a cylindrical shape. One end of the hose 14 is connected to the water supply port 6, and the hose 14 is drawn out from between the both ends of the plate 13a of the innermost winding floor 12a to the outside of the winding floor 12a and is folded flat. Is wound around the outer surface of the winding floor 12a in a single layer. At this time, the hose 14 has a folding width of 1 mm as shown in FIG.
It is better to wind so that about / 3 overlaps.

The hose 14 is wound around the innermost winding floor 12a, and then the plate 13b on the second winding floor 12b from the inside.
Is drawn out to the outside of the winding floor 12b from between both ends of the winding and is wound around the outer surface of the winding floor 12b in a single layer. Further, in the same manner, the outer surface of the outer winding floor 12 is sequentially wound.

In addition, in the drawings in the above description, the winding floor 12 is provided in triple, but it may be double, or may be formed in multiple of four or more.

Action In the present invention, each winding floor 12a, 12b, 12c is always biased to the outer circumference of the groove 9a, 9b, 9c by the elastic force of the plates 13a, 13b, 13c, and along the outer restraining portions 10a, 10b, 10c. There is. Therefore, as shown by the solid line in FIGS. 1 to 4, the hose 14 can be wound around the outer circumference of the winding floor 12a, 12b, 12c, and the hose 14 can be wound appropriately without causing unnecessary looseness. can do.

Here, when water is supplied from the water supply hose 8 through the water supply path 5 and the water is sent into the hose 14, the hose 14 expands into a cylindrical shape as shown by a chain line in the drawing. The hose 14 does not extend in the length direction even if water pressure is applied because the hose 14 has a very small extension in the length direction. When the hose 14 is spirally wound and expanded into a cylindrical shape, the inner circumference of the spiral is inward. Swell. Therefore, in the usual winder, the hose cannot swell because it cannot swell inward or outward of the spiral, but in the present invention, the hoses 12a, 12b,
12c is a suppression unit 10a, 11a, 10b, 11b, 10c, 11
Since it is movable in the radial direction between c, the plates 13a, 13b, 13c are pushed by the hose 14 from the outside.
The diameter can be reduced against the elasticity of.

Therefore, the hose 14 is hydraulically pressured on the winding floors 12a, 12b, 12c.
Can be contracted and expanded into a cylindrical shape, allowing water to pass therethrough.

Further, the hose 14 expands so that the width of the hose 14 is reduced from the flat state to about 2/3. Therefore, as described above, even if the edges are wound so that the edges overlap with each other, the edges swell properly and line up on the outer surface of the winding floor 12a, 12b, 12c.

When the hose 14 is pulled out from the reel 2 in this state, the reel 2 rotates with respect to the base 1 while the outermost winding floor 12c is rotated.
The hose 14 wound around is sequentially fed out.

Next, when all the hoses 14 wound on the outermost winding floor 12c are drawn out, the hose 14 wound on the inner winding floor 12b is subsequently drawn out. At this time, hose 14
Is pulled out through the outermost winding floor 12c, the winding floor 12b and the winding floor 12 inside thereof are rotated as the hose 14 is pulled out, but the outermost winding floor 12c is rotated by the hose 14.
It is supported by and does not rotate, and is pulled out from the space between both ends of the plate 13c.

Further, in the same manner, the hose 14 wound around the inner winding bed 12 is sequentially drawn out. At this time, the winding bed 12 inside the winding bed 12 around which the hose 14 is wound rotates, and The outer winding bed 12 is supported by the hose 14 and does not rotate. Finally, the hose 14 wound around the innermost winding floor 12a can be pulled out, and all the hose 14 wound around the reel 2 can be pulled out.

Next, when the hose 14 is wound around the reel 2, the innermost winding floor 12a is rotated while the other winding floors 12b, 12c outside thereof are stopped, and the plates constituting those winding floors 12b, 12c are rotated. The hose 14 is fed from between both ends of 13b and 13c and wound around the innermost winding floor 12a. Then, when the winding floor 12a is fully wound, the winding floor 12c outside thereof is stopped while rotating the winding floor 12a and the winding floor 12b outside thereof, and the plate 13 constituting the winding floor 12c.
The hose 14 is fed from between both ends of c and wound on the outer surface of the winding floor 12b.

In this way, the hose 14 is sequentially attached to the outer surface of the winding bed 12.
Is wound around and wound around the outermost winding floor 12c to end the storage of the hose 14.

The operation of pulling out and winding up the hose 14 will be described with reference to FIGS. 1 and 2 for the second invention. When the hose 14 is pulled out from the reel 2, the shaft 3 and the flanges 4 and 4 are attached to the base 1. It rotates and turns, and each winding floor 12a, 12b, 1
The outermost winding floor 12c while 2c also rotates accordingly.
The hose 14 wound around is sequentially fed out.

Next, when all the hoses 14 wound around the outermost winding floor 12c are pulled out, the rotation of the outermost winding floor 12c is stopped.
The flanges 4, 4 are slid between the winding floor 12c and the groove 9c.
And the inner winding floors 12b and 12a continue to rotate, and the winding floor 12b
The hose 14 wound around is drawn out.

Further, in the same manner, the hose 14 wound around the inner winding bed 12 is sequentially drawn out. At this time, the winding bed 12 inside the winding bed 12 around which the hose 14 is wound rotates, and The outer winding bed 12 is supported by the hose 14 and does not rotate by slipping between it and the groove 9 of the flanges 4, 4. Finally, the hose 14 wound around the innermost winding floor 12a can be pulled out, and all the hose 14 wound around the reel 2 can be pulled out.

Next, when the hose 14 is wound around the reel 2, the innermost winding floor 12a is rotated together with the flanges 4 and 4 while the other winding floors 12b and 12c outside thereof are stationary, and those winding floors 12b, The hose 14 is fed from between both ends of the plates 13b, 13c constituting the 12c and wound on the innermost winding floor 12a. Then, if it is fully wound on the roll 12a,
The winding floor 12a and the winding floor 12b on the outer side thereof are rotated together with the flanges 4 and 4, and the winding floor 12c on the outer side thereof is rotated.
Is stopped, and the hose 14 is fed from between both ends of the plate 13c constituting the winding floor 12c and wound around the outer surface of the winding floor 12b.

In this way, the hose 14 is sequentially attached to the outer surface of the winding bed 12.
Is wound around and wound around the outermost winding floor 12c to end the storage of the hose 14.

The operation of pulling out and winding in the hose 14 will be described with reference to FIGS. 3 and 4 regarding the third invention. When the hose 14 is pulled out from the reel 2, the shaft 3 and the flanges 4 and 4 are attached to the base 1. Rotating, rotating ring 15,1
6 is also supported by flanges 4 and 4 in FIG.
In the figure, since the shaft 3 is supported by the rotating members 19, 19, 20, 20, it rotates together with these. And these flanges 4, 4 and the rotary ring 1
Each winding floor 12a, 1 fitted in the grooves 9a, 9b, 9c of 5, 16
The hose 14 wound around the outermost winding floor 12c is sequentially fed out while the 2b and 12c also rotate integrally with them.

Next, when all the hoses 14 wound around the outermost winding floor 12c are pulled out, the rotation of the outermost winding floor 12c and the rotary ring 16 supporting the winding floor 12c is stopped. And the flanges 4, 4 via the bearings 17, 17, 22, 22
The inner rotating rings 15 and 15 continue to rotate, the inner winding beds 12b and 12a also continue to rotate, and the hose 14 wound around the winding floor 12b is pulled out.

Further, in the same manner as above, the rotation of the winding bed 12 after the hose 14 has been drawn out sequentially is stopped, and the hose 14 wound around the inner winding bed 12 is drawn out in sequence, at which time the hose 14 is wound. The winding bed 12 on the inner side of the winding floor 12 rotates, and the winding floor 12 on the outer side of the winding floor 12 is supported by the hose 14, and the rotating rings 15 and 16 and the flanges 4 and 4 supporting them.
And a rotation difference occurs between them and the motor stops. And finally,
The hose 14 wound around the innermost winding floor 12a can be pulled out, and all the hose 14 wound around the reel 2 can be pulled out.

Next, when the hose 14 is wound around the reel 2, the innermost winding floor 12a is rotated together with the flanges 4 and 4 while the other winding floors 12b and 12c outside thereof are rotated.
The hoses 14 are fed from between both ends of the plates 13b, 13c constituting the winding floors 12b, 12c and wound around the innermost winding floor 12a. When the winding floor 12a is fully wound, the winding floor 12a outside the winding floor 12b is rotated while rotating the winding floor 12a together with the flanges 4 and 4.
While rotating the rotating ring 15 supporting the winding floor 12b together with the shaft 3 or the flanges 4 and 4, the rotating ring 16 and the winding floor 12c on the outer side of the rotating ring 16 are made stationary so that the plate 13c constituting the winding floor 12c is rotated. Hose 1 from both ends
4 is fed and wound on the outer surface of the winding floor 12b.

In this way, the hose 14 is sequentially attached to the outer surface of the winding bed 12.
Is wound around and wound around the outermost winding floor 12c to end the storage of the hose 14.

EFFECTS OF THE INVENTION According to the present invention, when the hose is not used, the hose 14 is wound in a state where the hose 14 has a flat cross section. However, the hose 14 is reduced in diameter by passing water. Can swell in a circular cross section, and can discharge water while the hose 14 is wound around the reel 2. Therefore, even when this is used as a water discharger for an indoor or outdoor fire hydrant, it is not necessary to take out the hose from the fire hydrant box over its entire length in advance or extend it before use.
Since it is possible to start water discharge with the wound state of 4 and further run to the fire source while pulling out the hose, even an inexperienced person can easily use it.

Further, since the fire hose type can be used as the hose 14, the hose can be light and have sufficient pressure resistance, and the workability is good.

In the water discharger of the present invention, the winding floor 12 of the reel 2 is a simple plate 13 made of an elastic material such as metal or hard plastic.
Since the plate 13 is bent into a cylindrical shape to form the winding floor 12, the structure is extremely simple, and the plate 13 has a reduced diameter due to its elasticity to facilitate the passage of water. The winding diameter of the hose 14 can be reduced, and the winding diameter reducing mechanism does not break down or operate properly.

Further, according to the present invention, a plurality of winding beds 12 are formed on the reel 2, and these winding beds 12 can move the hose 14 in the radial direction independently of each other,
Moreover, since the hoses 14 are wound around the winding floor 12 in a single layer, respectively, the hoses 14 can be wound around the reel 2 in a substantially multistage manner, and the reel 2 becomes compact and has a sufficiently long length. The hose 1 of the length can be wound and stored, and the hose 1 that overlaps at the time of water passage
4 It does not prevent the comrades from pressing each other and expanding.

[Brief description of drawings]

1 and 2 show a water discharger of the second invention, FIG. 1 is a central longitudinal sectional view, and FIG. 2 is a II-II sectional view in FIG. FIG. 3 and FIG. 4 are central longitudinal sectional views showing an example of the water discharger of the third invention. 1 ...... Base 2 ...... Reel 3 ...... Shaft 4 ...... Flange 7 ...... Rotating joint 10, 11 ...... Restraining part 12 ...... Rolling bed 13 ...... Plate 14 ...... Hose 15, 16 ...... Rotating ring

Claims (3)

[Claims] 1. A reel (2) is rotatably supported by a support (1), and the reel (2) has a plurality of concentric annular winding beds (12a, 12a, 12b, 12
c) are provided so that they can be respectively reduced in the radial direction, and the winding beds (12b, 12c) excluding the innermost side are mutually rotatable with respect to the reel (2), and one end is rotated from the rotation axis of the reel (2). The flatly folded hose (14) connected to the water source via the joint (7) is wound around the innermost reel (12a) in a single layer, and then sequentially wound on the outer reels (12b, 12c) in a single layer. Water discharge device characterized by being wound 2. A reel (2) is rotatably supported on a support (1), and the reel (2) has a shaft (3) supported by the support (1) and the shaft (3). And flanges (4, 4) attached to both sides of the flange (4, 4), and annular restraining portions (10a, 11a, 10b, 11b) forming concentric pairs on opposite surfaces of the flanges (4, 4). , 10c, 11
Plates (13a, 13b, 1) having a plurality of pairs of c) and having elasticity
3c) a plurality of winding beds (12a, 12b, 1) curved in an annular shape
2c) is formed, and both side edges of the respective winding floors (12a, 12b, 12c) are connected to the respective restraining portions (10a, 11a, 10b, 11b, 10c,
11c) movably fitted in the radial direction of the flanges (4, 4), and the outer restraining portions (10a, 10b,
10c) along the winding floor (12b,
12c) is rotatable with respect to the flanges (4, 4),
A flatly folded hose (14), one end of which is connected to a water supply source through a rotary joint (7) from the shaft (3), is wound around the innermost reel (12a) in a single layer, and the outer reel is sequentially wound. (12b, 12c) Wrapped in a single layer, respectively, water discharge device 3. A reel (2) is rotatably supported on a support (1), and the reel (2) has a shaft (3) supported by the support (1) and the shaft (3). And flanges (4, 4) attached to both side portions of the flange (4, 4). The rotating rings (15, 15, 16, 16) are arranged, and the flanges (4, 4) and the respective rotating rings (15, 15, 16, 1) are arranged.
6) The annular restraining portions (10a, 11a, 10b, 11b, 10c, 11c) forming concentric pairs are formed on the opposite surfaces of 6),
A plurality of winding floors (12a, 12b, 12c) formed by bending an elastic plate (13a, 13b, 13c) in an annular shape is formed, and both ends of each winding floor (12a, 12b, 12c) are connected to the restraining portions ( 1
0a, 11a, 10b, 11b, 10c, 11c) are fitted so as to be movable in the radial direction of the flanges (4, 4) and along the outer restraining portions (10a, 10b, 10c). Is wound around the innermost bobbin (12a) by a single winding of the flatly folded hose (14) connected to the water source from the shaft (3) through the rotary joint (7), and the outer bobbin ( 12
Water discharge device characterized by being wound around b, 12c) respectively