JPH0530213U - Windbreak net support device - Google Patents

Abstract

(57) [Summary] [Purpose] The support wire 6 supporting the windbreak net 7 is less likely to be damaged. [Structure] A pair of pulleys are axially supported adjacent to each other so that the support wire 6 is inserted between the circumferential grooves of both pulleys, and a vertical load is applied by a horizontal shaft type wire retainer 13 with the pulley shafts in the horizontal direction. The support wire 6 is held, and the support wire 6 to which a large amount of wind pressure is applied is held by the vertical wire retainer 14 with the pulley axis in the vertical direction.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a windbreak net particularly suitable for use in a place where a strong wind blows.

[0002]

[Prior Art]

 A device in which a plurality of columns are erected on the ground, a supporting wire is stretched laterally on the column, and a net is suspended by a fishing ring on the supporting wire is known from Japanese Utility Model Publication No. 57-33055. .. In the device disclosed in the publication, since the supporting wire tensioning means for the supporting column and the net suspending means for the supporting wire are simple, loosening or abrasion may occur during long-term use, and loosening occurs. And the wind makes it easier to flap and cause more damage.

[0003]

[Problems to be solved by the device]

 In ski areas with high altitudes or mountains, there are many places where strong winds blow, and even if some of the lifts are shaken by the strong winds, if there is a certain amount of sway, the lift will be operated for safety. Since it has to be suspended, it causes a large economic loss and is inconvenient for users.

Therefore, an object of the present invention is to provide 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]

[Means for Solving the Problems]

 The means for solving the problems of the present invention is to provide a windbreak net supporting 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 pair of sheaves are supported in parallel and adjacent to each other, and a horizontal shaft type wire retainer in which the shaft of the sheaves is in the front-rear direction and a vertical axis type wire retainer in which the shaft is in the up-down direction are attached to an intermediate strut Fix it so that the supporting wire is inserted between the circumferential grooves of each pair of pulleys, and the supporting wire that receives a large amount of upward and downward load is supported by the horizontal shaft type wire retainer, and supports that receives a large amount of horizontal load. The wire is supported by a vertical wire retainer.

[0006]

[Action]

 With the above-mentioned means, the weight of the supporting 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 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 retainer rotates and friction with the support wire does not occur, so that abrasion of the support wire is prevented.

[0008]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. In FIG. 1, reference numeral 1 is 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 column, 3 is an intermediate column, 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 and 3 is, for example, 5 m, and the distance between the beams 4 and 4 is, for example, 3 m.

Then, support wires 6, 6 ... Are stretched at equal intervals of 1 m across each of the columns 2, 3, 3 ... And a net 7 having a lateral width between the columns and a vertical width between the 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 a worker climbs on the back surface of the sub pillar 9. A large number of steps 11 for descending are welded, and on the front surface of the end column 2, supporting rollers 12, 12 ... For supporting the supporting wire 6 are pivotally supported.

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 14 is provided at the intermediate position. Is installed.

FIGS. 4 and 5 show a horizontal shaft type wire retainer 13, in which a pair of pulleys 16, 17 are adjacent to a pulley frame 15 and are supported by pulley shafts 18, 19 which are oriented in the front-rear direction or the lateral direction. 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. Then, the support arm 20 is welded to the rear surface of the pulley frame 15 and is welded to the base plate 22 together with the reinforcing plate 21, and the base plate 22 is welded to the intermediate support column 3. Further, a semicircular locking ring 23 is welded to the front surface of the pulley frame 15 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 the same as the circumferential groove 16 a of the pulleys 16 and 17 above and below the support wire 6. , 17a so that the supporting wire 6 can be prevented from moving up and down.

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 wind pressure is received by the circumferential groove 27a or 26a.

A reinforcing plate 30 is attached to the extension portion 25 a of the pulley frame 25 and welded to the base plate 31, and the base plate 31 is welded to the intermediate support column 3. A semicircular locking ring 32 is welded to the front surface.

In the vertical wire supporter 14, the inclination angles of the pulley shafts 28 and 29 are made 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 three wires 6 that support the upper and lower ends of the nets 7a and 7b are horizontal shaft type wire holders. The four wires 6 that pass through the holder 13 and support the intermediate portions of the nets 7a and 7b are bent downward from the support pulley 12 of the end strut 2 through the longitudinal wire retainer 14, and the end strut It is wound up by a winder 36 through a guide pulley 35 provided in the lower part of 2.

As shown in FIG. 9, the guide pulley 35 includes 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 35 a can be freely rotated. Each of the pulleys 35a is individually hung with seven support wires 6.

The winder 36 is attached to the side seats 40 of the end columns 2 by the number of the support wires 6. In FIGS. 10 and 11, a drive shaft 42 and a driven shaft 43 are supported by a box form 41, a pinion 43 and a ratchet wheel 44 are fixed to the drive shaft 42, and a polygonal handle coupling portion 45 and a screw 46 are sequentially provided. The ratchet wheel 44 is engaged with the claw 47 to prevent the reverse rotation. The handle 48 is fitted into the handle connecting portion 45 and is held by the nut 49. The driven shaft 43 is provided with a winding portion 50, and a gear 51 is fixed, and the end portion of the support wire 6 is coupled to the winding portion 50, and the gear 51 meshes with the pinion 43.

Therefore, when the handle 48 is turned clockwise, the support wire 6 is wound around the winding portion 50 and becomes tense, and the claw 47 prevents the net 7 from being reversed and loosened, so that the net 7 withstands its weight and wind pressure. Can be supported.

The net 7 has a constant lateral width corresponding to the strut spacing, as indicated by 7a and 7b. The number or vertical width of the nets mounted within the strut spacing varies depending on the windbreak condition. The distance between the lower end and the ground E is determined by the assumed snowfall amount.

As shown in FIGS. 12 and 13, the net 7 is made of a net material 55 roughly woven of fine filaments of synthetic resin, and in order to reinforce this, a rope 56 made of synthetic fiber is provided around the net material 55. A reinforcing edge 59 is provided which is sewn together and wrapped with a canvas 57 and sewn with a sewing thread 58. The reinforcing edge 59 includes an upper edge 59a, a side edge 59b, a lower edge 59c ...

Reinforcing strips 62a, 62b, etc. are provided at equal intervals so that the rope 56 is arranged along the net material 55 and the tape 60 of canvas is applied from the front and back and sewn with the sewing thread 61 so as to cross the middle portion of the net 7. Be done. The mutual spacing of the reinforcing strips or the spacing h between the reinforcing strips 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 stainless steel U-shaped locking metal fitting 63 shown in FIG. 14 is used, and as shown in FIGS. It is attached to every other reinforcing band 62b. The leg portion 63a of the locking fitting 63 is bent such that the reinforcing wire 59a penetrates the reinforcing bands 63b ... And holds the rope 56.

Further, 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 for closing the same. The stop spring 66 has different left and right leg lengths, thereby closing the opening 66a. This is a form that gives elasticity.

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

As described above, since the periphery of the net 7 is reinforced by the reinforcing edge 59 using the rope 56 and the intermediate portion is reinforced by the reinforcing bands 62a, 62b ..., The net 7 can withstand a strong wind. Since a large number of U-shaped engaging members 63 having a pair of leg portions 63a are attached to these reinforcing portions, the load generated at the connecting portion between one engaging metal fitting 63 and the net 7 is the leg portions 63a. , 63a, so that the joint can bear a large load.

Further, since each locking metal piece 63 is connected to the rope 6 or the locking rings 23, 32 by the C-shaped hook 65, the connection work is simple and the work at a high place can be facilitated. it can. The support 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 support 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, 27a of the pulleys 26, 27, the contact area is large and no large stress is generated on the contact surface of the support wire 6. Further, even if the supporting wire 6 expands or contracts in the longitudinal direction, the pulley does not rotate and friction does not occur, so that the supporting wire does not wear. Therefore, the support wire 6 is not damaged and can be used for a long time.

It should be noted that eyelet fittings and other engaging members can be used in place of the engaging fittings 63 in the above-described embodiment, and connecting members such as fishing rings and wires can be used in place of the hooks 65. ..

[0030]

[Effect of the device]

 As described above, according to the present invention, the supporting wire that receives the weight of the net or the load in the vertical direction and the supporting wire that receives the horizontal load based on the wind pressure are supported by the circumferential groove of the pulley in the radial direction of the pulley. Therefore, the support wire can be securely held, and an excessive force is not applied to the support wire. Furthermore, 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] Same as the front view

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 same as 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 part of the net are locked to the support wires. A horizontal shaft type wire retainer in which the shafts of the pulleys are adjacent to each other and supported in parallel in the front-rear direction and a vertical axis type wire retainer in which the shaft is in the vertical direction are fixed to an intermediate column, and each pair of A supporting wire is inserted between the circumferential grooves of the pulley, the supporting wire that receives a large amount of vertical load is supported by a horizontal shaft type wire retainer, and the supporting wire that receives a large amount of horizontal load is a 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 pivotally 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.