JPH0712409Y2 - Windproof net support device - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a windbreak net suitable for use in a place where a strong wind blows.

[0002]

2. Description of the Related Art A device in which a plurality of columns are erected on the ground, a supporting wire is laterally stretched on the column, and a net is suspended on the supporting wire with a fishing ring is disclosed in Japanese Utility Model Publication No. 57-33055. Are known. In the device disclosed in the publication, since the supporting wire tensioning means for the support column and the net suspending means for the supporting wire are simple, there is a risk of loosening or abrasion during long-term use. It is apt to flap due to wind and increase damage more easily.

[0003]

[Problems to be Solved by the Invention] In a ski resort in a high altitude or in a mountainous area, there are many places where strong winds are blown, and the strong winds cause a certain amount of sway even in a part of the lift. For that reason, the lift has to be suspended for safety reasons, resulting in large economic loss and inconvenience to users.

Therefore, it is an object of the present invention to obtain a durable device which is provided at a position where a strong wind is blown in a lift or the like and can reliably support a windbreak net.

[0005]

According to the means for solving the above problems of the present invention, a plurality of supporting wires are stretched laterally on a plurality of columns, and the upper and lower edges and the intermediate portion of the net are connected to the supporting wires. In a windbreak net support device that is locked to, a horizontal shaft type wire retainer in which a pair of pulleys are axially supported adjacent to each other in parallel and the shafts of the pulleys are in the front-rear direction, and a vertical axis type in which the shafts are in the vertical direction The wire retainer is fixed to the middle column, and the supporting wire is inserted between the circumferential grooves of each pair of pulleys.The supporting wire that receives a large amount of vertical load is supported by the horizontal shaft type wire retainer, The supporting wire that receives a large amount of load is supported by the vertical wire retainer.

[0006]

With the above-mentioned means, the weight of the support wire and the net is supported by the horizontal axis wire retainer, and the wind pressure is supported by the vertical axis type wire retainer. It is pressed against the circumferential groove of the pulley in the radial direction and securely held.

Even if the support wire expands or contracts due to the force or vibration applied from the net, the pulley of the wire holder rotates and friction with the support wire does not occur, so that the support wire is prevented from being worn.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. In FIG. 1, reference numeral 1 denotes a windbreak net of the present invention installed at a ski resort, which is provided along a lift L on the ground E on the lower side thereof. 2 is an end support, and 3 is an intermediate support, which are erected at regular intervals, are connected to each other by three beams 4, and braces 5 are provided as necessary. The distance between the columns 2, 3, 3 is, for example, 5 m, and the distance between the beams 4, 4 is, for example, 3 m.

Then, crossing each of the columns 2, 3, 3 ...
Support wires 6, 6 ... Are stretched at equal intervals of m, and a net 7 having a lateral width between columns and a vertical width between beams is attached.
The net 7 damps the wind to be blown and prevents the lift L on the leeward side from swinging. For convenience of explanation, the upper one of the nets 7 is denoted by 7a, and the lower one is denoted by 7b.

As shown in FIGS. 2 and 3, the stanchions 2 and 3 are made by connecting a main pillar 8 and a sub pillar 9 made of square tube material with a stay 10, and an operator climbs on the back surface of the sub pillar 9. A large number of steps 11 for descending are welded, and support rollers 12, 12, ... For supporting the support wire 6 are pivotally supported on the front surface of the end support 2.

The intermediate support column 3 has the same structure as the end support column 2, but a horizontal axis type wire retainer 13 is attached to the front surface at the same position as the beam 4, and a vertical axis type wire retainer 1 is provided at the intermediate position.
4 is attached.

FIGS. 4 and 5 show a horizontal shaft type wire retainer 13, which is pivotally supported by pulley shafts 18 and 19 which face the front and rear direction, that is, the lateral direction with a pair of pulleys 16 and 17 adjacent to a pulley frame 15. The supporting wire 6 is inserted between the opposing circumferential grooves 16a and 17a to support the vertical load F ₁ applied from the supporting wire 6. And the pulley frame 15
The support arm 20 is welded to the rear surface of the base plate 22 together with the reinforcing plate 21, and the base plate 22 is welded to the intermediate support column 3. In addition, a semicircular locking ring 23 is provided on the front surface of the pulley frame 15.
Are welded to connect the locking tool of the net 7. The support wire 6 is, for example, a steel stranded wire having a diameter of 9 mm and a resin coating having a thickness of 1 mm.

In FIG. 4, the inclination angle θ ₁ of the support wire 6
Is substantially equal to the inclination angle of the ground, and the inclination angle θ ₂ of the pulley frame 15 is such that the support wire 6 is above and below the circumferential groove 1 of the pulleys 16 and 17.
The inclination angle for contacting the bottoms of 6a and 17a,
By doing so, the vertical movement of the support wire 6 is prevented.

Next, FIGS. 6, 7 and 8 show a vertical wire retainer 14 in which pulleys 26 and 27 are supported on a pulley frame 25 by pulley shafts 28 and 29 which are oriented in the vertical direction and transmitted from the net 7. The force F ₁ or F ₂ due to the wind pressure is received by the circumferential groove 27a or 26a.

A reinforcing plate 30 is provided on the extension 25a of the pulley frame 25.
Is attached and welded to the substrate 31, and the substrate 31 is welded to the intermediate support column 3. In addition, a semicircular locking ring 3 on the front
2 is welded.

In the vertical wire supporter 14, the pulley shafts 28 and 29 are made to have an inclination angle substantially equal to the inclination angle θ ₁ of the support wire 6, as shown in FIG.

One end of the support wire 6 is fixed to an end column not shown in FIG. 1, and the nets 7a and 7b among them are fixed.
The three wires 6 supporting the upper and lower ends of the wire pass through the horizontal wire retainer 13, and the four wires 6 supporting the middle part of the nets 7a and 7b pass through the vertical wire holder 14. And the winder 3 is bent downward from the supporting pulley 12 of the end strut 2 and passes through a guide pulley 35 provided in the lower portion of the end strut 2.
Take up to 6.

As shown in FIG. 9, the guide pulley 35 has a shaft support frame 38 connected to an arm 37 extending laterally from the front end of the end support 2, and a pulley 39 on which seven pulleys 35a can be freely rotated. Each of the pulleys 35a is individually supported by seven supporting wires 6.

The winders 36 are attached to the side seats 40 of the end columns 2 by the number of support wires 6. 10 and 11
The box form 41 supports the drive shaft 42 and the driven shaft 43.
A pinion 43 and a ratchet wheel 44 are fixed to the drive shaft 42, a polygonal handle coupling portion 45 and a screw 46 are sequentially provided, and a pawl 47 engages with the ratchet wheel 44 to prevent reverse rotation. The handle 48 is fitted into the handle coupling portion 45 and is held by the nut 49. Driven shaft 43
The take-up portion 50 is provided at the same time, the gear 51 is fixed, the end portion of the support wire 6 is coupled to the take-up portion 50, and the gear 51 meshes with the pinion 43.

Therefore, when the handle 48 is rotated clockwise, the supporting wire 6 is wound around the winding portion 50 and becomes tense, and the claw 47 prevents the support wire 6 from being reversed and loosened, and the net 7 is prevented.
Can bear and support their weight and wind pressure.

The net 7 has a certain lateral width corresponding to the column spacing, as indicated by 7a and 7b. The number of sheets or the vertical width mounted within the column spacing varies depending on the windproof conditions, and the lower end of the net 7 The distance between the ground and the ground E is determined by the assumed snowfall amount.

As shown in FIGS. 12 and 13, the net 7 includes:
Using a net material 55 roughly woven with fine lines of synthetic resin,
In order to reinforce this, a rope 56 made of synthetic fiber is added to the periphery thereof, and a reinforcing edge 59 wrapping with a cloth 57 and sewn with a sewing thread 58 is provided. The reinforcing edge 59 includes an upper edge 59a, a side edge 59b, a lower edge 59c ...

Reinforcing belts 62a, 62, in which a rope 56 is placed along the net material 55 so as to cross the middle portion of the net 7 and a tape 60 of canvas is applied from the front and back and sewn with a sewing thread 61.
b ... Are provided at equal intervals. The mutual spacing between the reinforcing bands or the spacing h between the reinforcing bands and the upper edge 59a and the lower edge 59c is 1/2 of the spacing between the ropes 6,6.

In order to connect the net 7 to the ropes and the stanchions 2 and 3, a U-shaped locking metal fitting 63 made of stainless steel shown in FIG. 14 is used, and as shown in FIGS. It is attached to every other reinforcement band 62b. The leg portion 63a of the locking fitting 63 has a reinforcing wire 59a, a reinforcing band 63b, ...
And is bent so as to grip the rope 56.

A C-shaped hook 65 is used to connect the locking fitting 63 to the support wire 6 and the like. As shown in FIGS. 16 and 17, the hook 65 has an opening 66a into which the wire 6 is inserted and a stop spring 66 that closes the opening 66a. The stop spring 66 has different left and right leg lengths.
This is a type in which the elasticity for closing a is imparted.

As shown in FIG. 18, the upper edge 59a and the lower edge 5 are
9c, the locking metal fitting 63 of the reinforcing band 62b is connected to the support wire 6 by the hook 65, and the locking metal fitting 6 of the side edge 59b.
3 is connected to the locking ring 23 of the retainer 13 and the locking ring 32 of the retainer 14 using one or two hooks 63.

In this way, the rope 56 is wound around the net 7.
Is reinforced by a reinforcing edge 59 using
Since it is reinforced with 62b, the net 7 can withstand strong winds. Then, a pair of legs 63a are provided on these reinforcing portions.
Since a large number of U-shaped locking metal fittings 63 having the above-mentioned structure are attached, the load generated at the connecting portion between one locking metal fitting 63 and the net 7 is bisected by the leg portions 63a and 63a. Can withstand heavy loads.

Further, each locking metal piece 63 is attached to a C-shaped hook 65.
Since it is connected to the rope 6 or the locking rings 23 and 32 by means of, the connecting work is easy and the work at a high place can be facilitated. The supporting wires 6 located at the upper and lower ends of the net 7 are held by the horizontal shaft type wire retainer 13, and the weight or the vertical load applied from the net 7 to the supporting wire 6 is applied to the circumferential grooves 16a of the upper and lower sheaves 16 and 17. , 17a in the diametrical direction, and the supporting wire 6 located in the middle portion of the net 7 is held by the vertical wire retainer 14, and the horizontal load generated on the supporting wire 6 by the wind pressure applied to the net 7. Since they are diametrically received by the circumferential grooves 26a and 27a of the pulleys 26 and 27, the contact area is large and a large stress is not generated on the contact surface of the support wire 6. Further, even if the support wire 6 expands or contracts in the longitudinal direction, the pulley does not rotate and friction does not occur, so that the support wire is not worn. Therefore, the support wire 6 is not damaged and can withstand long-term use.

Incidentally, the locking fitting 63 in the above-mentioned embodiment.
Instead of this, eyelet fittings or other locking members can be used, and instead of the hooks 65, connecting members such as fishing rings and wires can be used.

[0030]

As described above, according to the present invention, the supporting wire which receives the weight of the net or the load in the vertical direction and the supporting wire which receives the load in the horizontal direction based on the wind pressure are arranged in the circumferential groove of the pulley in the diameter direction of the pulley. Since the support wire is supported, the support wire can be reliably held, and an excessive force is not applied to the support wire. Further, even if the supporting wire repeatedly expands and contracts or reciprocates in the lengthwise direction due to fluctuations in wind pressure, the pulley rotates and friction with the supporting wire does not occur.

Therefore, the support wire has an effect of enduring long-term use without being damaged.

[Brief description of drawings]

FIG. 1 is a front view of an embodiment of the present invention.

[Fig. 2] Plan view of the column

[Fig. 3] Side view of the above

FIG. 4 is a front view of a horizontal axis type wire retainer.

[FIG. 5] Side view of the above

FIG. 6 is a plan view of a vertical wire retainer.

[Fig. 7] Side view of the above

FIG. 8 is a front view of the same as above.

FIG. 9 is a plan view of a guide pulley.

FIG. 10 is a side view of the wire winder.

FIG. 11 is a front view of the same as above.

FIG. 12 is a front view of the net.

FIG. 13 is a sectional view of the same as above.

FIG. 14 is a front view of the locking metal fitting.

FIG. 15 is a side view of the locking structure.

FIG. 16 is a partially enlarged side view of the above.

FIG. 17 is a plan view of the same as above.

FIG. 18 is a front view of the same as above.

[Explanation of symbols]

2, 3 Support 6 Support wire 7 Net 13 Horizontal axis type wire support 14 Vertical axis type wire support 16, 17, 26, 27
Pulley 35 Guide pulley 36 Winder

Claims (2)

[Scope of utility model registration request] 1. A windbreak net support device in which a plurality of support wires are laterally stretched on a plurality of columns, and upper and lower edges and an intermediate portion of the net are locked to the support wires. A horizontal shaft type wire retainer in which the shafts of the pulleys are oriented in the front-rear direction and adjacent to each other in parallel support, and a vertical axis type wire retainer in which the shaft is in the vertical direction are fixed to an intermediate strut, and each pair of The support wire is inserted between the circumferential grooves of the pulley, the support wire that receives a large amount of vertical load is supported by the horizontal shaft type wire retainer, and the support wire that receives a large amount of horizontal load is the vertical axis type wire retainer. A windbreak net support device characterized by being supported by. 2. A support arm protruding laterally is fixed to a column at an end position, a guide pulley for individually hanging each support wire is rotatably supported on the support arm, and a winder is provided below the guide pulley. The windbreak net support device according to claim 1, wherein one end side of the support wire is wound around the winder through the guide pulley.