JP2832593B2 - Apparatus for preventing hoisting wire and hoisting winch in pole type netting device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a hoisting winch in which a wire for lifting a surrounding net stretched between a number of poles erected around a baseball range, a golf range, etc. To a device for preventing the

[0002]

2. Description of the Related Art Conventionally, a pole is set up, a pulley is provided at the upper end of the pole, a net lifting wire is hung on the pulley, and the net is pulled up by the lifting wire by an electric winch. An enclosure net device such as a golf driving range is provided. When the wind speed increases, the enclosure net device automatically suspends the enclosure net that receives a large wind pressure to prevent the danger of the net falling down. By the way, when hanging the net like this,
If the wind direction is from the back side of the pole, the net will be separated from the pole by this wind pressure, and the net can be smoothly lowered.However, in the case of the wind direction from the front side of the net, In this case, the net is pressed against the guide wire and the pole, and it is difficult to lower the net with this resistance. And the higher the wind pressure, the greater the resistance, eventually making it impossible to lower.

[0003] The electric winch of the above type is set so as to automatically rewind when the wind speed becomes about 20 m for safety. However, it is impossible to lower the net depending on the wind direction. However, since the electric winch is automatically rewound, the net pulling wire is loosened and the wire of the electric winch is turbulently wound. As a solution to this, an attempt has been made to attach a metal rod-shaped weight to the upper part of the net tension wire fixed to the net pulling wire, and to apply a load to the net pulling wire to make it easier to drop. . In this technique, there is a problem that even if a certain degree of effect can be expected when the wind speed is low, the effect is almost lost when the wind speed is slightly increased.

[0004] In order to solve the problem, the inventor of the present invention has previously proposed a wire winch irregular winding prevention device (Japanese Utility Model Application No. 4-872078) in which a wire is tensioned by a weight to prevent irregular winding. is suggesting. Since this invention is incorporated in advance when constructing the net pulling wire, there is a problem that it cannot be easily retrofitted to the existing enclosure net device.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and always applies a load to the wire by smoothly lowering the net even in a strong wind to provide a wire to the electric winch. An object of the present invention is to provide a device for preventing turbulent winding, which can be easily retrofitted to a pole and a wire of an existing enclosure net device.

[0006]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention relates to a lifting method in which a fixed frame 2 held by a net lifting pole P is lifted from an upper portion of the pole P toward a winding winch. Bearing holder protruding so as to sandwich wire-1
A front pulley moving shaft 7 is erected in the horizontal direction via 3, 3 and the front pulley 6 is slidably pivotally mounted.

[0007] A pair of substantially L-shaped arms 8, 8 are arranged in a F shape above the bearing holder 3 toward the pole P, and base ends 8a, 8a are moved to the front pulley moving shaft. 7, a rear pulley moving shaft 11 is erected in parallel with the front pulley moving shaft 7 on the bent portions 8b, 8b, and the rear pulley 10 is pivotally mounted so as to be slidable. A substantially L-shaped arm is provided by arranging a spring locking shaft 13 in parallel with the pulley moving shaft 11 and interposing a tension spring 16 between the spring locking shaft 13 and the lower portion of the fixed frame 2. 8 applies downward biasing force. Further, the substantially L-shaped arm 8 is provided on the outer side of the substantially L-shaped arm 8.
A horizontal holding stopper 14 is provided, which stops when the leading end portion 8c is lowered and comes into contact with a part of the bearing holder-3.

Then, the lifting wire-1 is
Through the rear side of the rear pulley 10 and the front side of the spring locking shaft 13 from the upper side along the front P, to the front of the front pulley 6, and attach a weight 17 immediately behind the front pulley 6 of the lifting wire-1. Weight pulley 18 is suspended. Also, the front pulley 6 and the rear pulley 10 are provided with wire-fall prevention guides 19, respectively.
20 are provided.

Further, a wire detent 27 for preventing lateral deflection of the lifting wire 1 is attached to an intermediate portion of the net lifting pole P above the holding position of the fixed frame 2. It is.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings. In the present invention, in a surrounding net such as a baseball range or a golf range, a net is stretched and suspended on a pole P on a wire. A port for hanging the connected lifting wire-1 on a pulley provided at the upper end of a concrete pole P, driving an electric winch, winding the lifting wire-1 around the winch, and raising and lowering the net. It is used for a round enclosure net device.

As shown in FIGS. 1 and 2, a lifting wire-1 is provided at an intermediate portion of an upper pole P of an electric winch attached to a lower portion of a net lifting pole P, as shown in FIGS.
The fixing frame 2 having the two bearing holders 3 and 3 projecting horizontally with a gap therebetween is wound around the net lifting pole P and is tightened and fixed with bolts 4. .
Then, bearing portions 5 are provided at both end portions 3a of the bearing holders-3 and 3, respectively, and the front pulley moving shaft 7 is horizontally supported.
The front pulley 6 is pivotally mounted on the front pulley moving shaft 7 so as to be free to rotate and slidable to both sides. A wire-preventing guide 19 is provided on both sides of the front pulley 6, and a guide fixing shaft 19a is bridged at the tip of the wire-preventing guide 19 to lift the wire from the front pulley 6.
1 is prevented from falling off.

Further, a pair of substantially L-shaped arms 8, 8 are arranged in a F shape above the bearing holders 3, 3 toward the pole P, and the base end 8a is moved to the front pulley. It is pivotally supported at both ends of the shaft 7. A bearing 9 is provided at the bent portion 8b of the substantially L-shaped arm 8, and a rear pulley moving shaft 11 is erected on the bearing 9 in parallel with the front pulley moving shaft 7 to rotate the rear pulley 10. -And pivotably mounted. A wire-fall prevention guide 20 is provided on both sides of the rear pulley 10 and a guide fixing shaft 20a is bridged at the tip thereof to prevent the lifting wire-1 from falling off from the rear pulley 10.

Further, a tip portion 8c of the substantially L-shaped arm 8 is provided.
A spring engaging shaft 13 is mounted on the bearing 12 in parallel with the rear pulley moving shaft 11, and a spring engaging wheel 21 is fixed to the center of the spring engaging shaft 13. A spring mounting portion 15 extends below the fixed frame 2, and a tension spring 16 is interposed between the spring mounting portion 15 and the spring locking wheel 21 of the spring locking shaft 13. Then, the tip portion 8c of the substantially L-shaped arm 8 is formed by the tension spring 16.
Is urged downward. Further, the substantially L-shaped arm 8, 8
Horizontal holding stoppers 14 and 14 are provided at the outer portions of the horizontal holding stoppers 14 and 14 which stop when the distal end portion 8c of the substantially L-shaped arm 8 lowers.

The substantially L-shaped arm 8 has a front pulley moving shaft 7, a rear pulley moving shaft 11, and a spring locking shaft 13 at its base end 8a, bent portion 8b, and tip 8c, respectively. It suffices if the lines connecting the axes in parallel can be formed in a triangle. In addition to the L-shape as shown in FIG. 1, a right triangle as shown in FIG. 5 also forms a rectangle. May be.

Then, the lifting wire-1 is guided from above along the pole P to the front of the front pulley 6 via the rear side of the rear pulley 10 and the front side of the spring locking shaft 13 so as to be in the middle of the lifting wire-1. A weight pulley 18 with a weight 17 is suspended therefrom. Then, the tip of the lifting wire-1 is further directed to the electric winch mounted thereunder. The weight pulley 18 is provided with a weight pulley mounting guide 22 and a weight pulley mounting guide shaft 23 at the end thereof, and the weight 17 is hung on the guide shaft 23.

The front pulley 6 and the rear pulley 10 may be metal pulleys with bearings. The front and rear pulley moving shafts 7 and 11 made of stainless steel have low resistance such as rotation and sliding resistance. The use of a resin-based material is more preferable in terms of maintenance because lubricating oil does not need to be periodically added.

Further, as shown in FIGS. 4 and 5, a bearing holder 26 protrudingly provided at an intermediate portion of the net lifting pole P above the fixed frame 2 so as to sandwich the lifting wire-1. , 26 are attached and fixed with a pole holding band 25,
The bearing holders 26 and 26 are provided with a wire stopper 27 which is pivotally mounted with a lead drawer 24 for holding and lifting the lifting wire-1 from front and rear. The distance from the fixed frame 2 to the wire stopper 27 is preferably the same as the distance from the fixed frame 2 to the electric winch W, and is preferably about 2 to 5 m, respectively. If this distance is excessively short, the function of following the front pulley 6 and the rear pulley 10 with respect to the side reciprocating movement of the wire-1 may not be performed. In the drawing, the upper portions of the enclosure net and the pole are omitted.

[0018]

The present invention is constructed as described above. When the net is pulled up, the lifting wire-1 is wound around the drum of the electric winch, and as shown in FIGS. 1 and 3, the weight of the weight 17 hanging down on the lifting wire-1 is reduced. The weight pulley 18 is pulled up between the rear pulley 10 and the front pulley 6 by the force of the large electric winch. At this time, the horizontal holding stoppers 14 and 14 of the distal end portion 8c of the substantially L-shaped arm 8 riding on the bearing holders 3 and 3 are separated from the bearing holders 3 and 3 against the tension spring 16 at the same time. Rise.

When lowering the net, the lifting wire-1 is fed out from the electric winch, and the above state is reversed.
As shown in FIG. 2, a weight 1 hanging on a lifting wire-1
When the force retained by the electric winch becomes smaller than the load of 7, the distal end portion 8c of the substantially L-shaped arm 8 is pulled down by the contraction force of the tension spring 16, and the horizontal holding stopper 14 of the distal end portion 8c is used as the bearing holder. Stop at 3
Furthermore, when the net is pushed by the wind from the front side of the net and is pressed against the guide wire and the pole, and the resistance makes it difficult to lower the net and the net becomes difficult to lower, the lifting wire is used. 1 is reduced. Then, the weight pulley 18 between the rear pulley 10 and the front pulley 6 descends along the pole P under the load of the weight 17.
In other words, at least the lifting wire-1 is always held in a tension state by holding the load of the weight 17.

In addition, the lifting of the electric winch causes the width of the lifting drum 1 to fluctuate. At this time, the front pulley 6 is rotatably and slidably mounted on the front pulley moving shaft 7 and the rear pulley 11 is rotatably mounted on the rear pulley moving shaft 11, so that the electric winch of the lifting wire-1 is wound up. The front pulley 6 and the rear pulley 10 reciprocate following the lateral reciprocating movement of
The lifting wire-1 is smoothly moved up and down with 1 being at the center of the front and rear pulleys 6,10.

When the present invention is mounted on an existing pole-type enclosing net device, the pole P can be pinched at an intermediate portion and fixed by bolts 4 so that it can be retrofitted.
1 is to remove the guide fixing shafts 19a and 20a of the wire-fall prevention guides 19 and 20 of the front pulley 6 and the rear pulley 10, and to attach the rear pulley moving shaft 11 and the pulley shaft fixing bolt 18a of the weight pulley 18. Then, the lifting wire-1 is passed through the inside and the pulley shaft fixing bolt 18a and each guide fixing shaft 19a,
By assembling the 20a in its original state, it can be easily attached to the pole-type enclosure net device without touching it.

Further, if a wire damper 27 is provided at an intermediate portion of the net lifting pole P above the fixed frame 2, the portion of the lifting wire 1 above the fixed frame 2 can be increased. The wind pulls and forms a bow, causing the front pulley 6 and the rear pulley 10 to move toward the full width of the front pulley moving shaft 7 and the rear pulley moving shaft 11, and a lifting wire 1 by winding a drum of an electric winch. Can be prevented from losing the function of following the lateral reciprocation.

[0023]

As described above, even when the lifting wire-1 is automatically drawn out from the electric winch in a strong wind, the enclosure net can be safely and securely lowered because it can be lowered. At this time, even if the net is kept pressed against the pole P by the wind pressure and the whole net does not descend, the weight 17 descends in a suspended state to the middle of the lifting wire-1. As a result, a load is always applied to the wire, and the wire-1 wound around the electric winch is maintained in a tensioned state, does not loosen at all, and falls smoothly without falling into a turbulent state. As a result, maintenance management such as inspection of turbulence can be easily performed, and the danger of falling over the net can be more reliably avoided. In particular, it is expected that it will be widely used because it can be easily attached to the pole P and the lifting wire 1 without putting a hand on the existing pole-type enclosure net device.

[Brief description of the drawings]

FIG. 1 is a perspective view of the present invention.

FIG. 2 is a side view of the present invention.

FIG. 3 is a front view of the present invention.

FIG. 4 is a front view showing another embodiment.

FIG. 5 is a side view showing the embodiment of FIG. 4;

[Explanation of symbols]

 P Net lifting pole 1 Lifting wire 2 Fixed frame 3 Bearing holder 3a Tip of bearing holder 4 Bolt 5 Bearing 6 Front pulley 7 Front pulley moving shaft 8 Approximately L-shaped arm 8a Base end portion of L-shaped arm 8b Bent portion of substantially L-shaped arm 8c End portion of substantially L-shaped arm 9 Bearing 10 Rear pulley 11 Rear pulley moving shaft 12 Bearing 13 Spring locking Shaft 14 Horizontal holding stopper 15 Spring mounting part 16 Tension spring 17 Weight 18 Weight pulley 18a Weight pulley shaft fixing bolt 19 Wire-fall prevention guide 19a Guide fixing shaft 20 Wire-fall prevention guide 20a Guide fixing shaft 21 Spring locking wheel 22 Weight pulley mounting guide 23 Weight pulley mounting guide shaft 24 Lead drawer 25 Pol holding band 26 Bearing holder

Claims (3)

(57) [Claims] A bearing projecting from a fixed frame (2) held by a net lifting pole (P) so as to sandwich a lifting wire (1) from the upper part of said pole (P) toward a winding winch. A front pulley moving shaft (7) is erected in the horizontal direction via the holders (3) and (3), and the front pulley (6) is slidably pivoted, and a pair of substantially L-shaped arms ( 8) and (8) are arranged in a F shape above the bearing holder (3) toward the pole P, and the base ends (8a) and (8a) of the front pulley moving shaft (7) are arranged. It is pivotally supported at both ends, and a rear pulley moving shaft (11) is erected on the bent portions (8b), (8b) in parallel with the front pulley moving shaft (7), and the rear pulley (10) is slidably pivoted. A spring locking shaft (13) is installed on the front end portions (8c) and (8c) in parallel with the rear pulley moving shaft (11), and the spring locking shaft (13) and the fixing flange are fixed. A tension spring (16) is interposed between the lower portion of the frame (2) and a downward biasing force to the substantially L-shaped arm (8), and further, the substantially L-shaped arm is provided. When the end portion (8c) of the substantially L-shaped arm (8) descends to the outside of (8), the horizontal holding stopper (14) stops against a part of the bearing holder (3). And a lifting wire (1) is attached to the rear side of the rear pulley (10) from above along the pole P, and the spring locking shaft (1) is provided.
After passing through the front side of 3) and leading to the front pulley (6), a weight pulley (18) with a weight (17) is hung right behind the front pulley (6) of the lifting wire (1). And a hoisting winch. 2. A hoisting wire in a pole-type enclosure net device according to claim 1, wherein the front pulley (6) and the rear pulley (10) are provided with wire-fall prevention guides (19) and (20), respectively. Winch turbulence prevention device. 3. A wire detent (27) for preventing the horizontal swing of the lifting wire (1) is provided at an intermediate portion of the net lifting pole P above the holding position of the fixed frame (2). An apparatus for preventing turbulence of a hoisting wire and a hoisting winch in the pole type net device according to claim 1 or 2.