JP3054813U - Net lifting device - Google Patents

Abstract

(57) [Summary] [Purpose] The present invention provides a net lifting device that can be used when lifting and lowering a ball-proof net at a golf driving range or the like, and that can raise and lower the net smoothly even on a particularly windy day. With the goal. [Structure] A lifting body between a pulley provided on a support and a net is provided with a weight for tensioning the lifting wire.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a device for raising and lowering a net, and more particularly to a net lifting device used for raising and lowering a ball-proof net at a driving range.

[0002]

[Prior art]

 For example, in a driving range, a ball-proof net is provided along a column around the driving range to prevent a hit golf ball from flying outside the driving range. This ball net is susceptible to wind resistance, and since the received resistance is transmitted directly to the strut, the strut may be damaged depending on the strength of the wind (wind pressure). Therefore, on a windy day, etc., the ball net must be lowered quickly along the columns to avoid wind resistance. At this time, a net raising device is used to move the ball-proof net up and down along the columns. In the conventional net raising device, a winch provided on the lower side of the column is operated, and a lifting wire connected to the upper portion of the ball-proof net is pulled out via a pulley provided on the upper side of the column to prevent the net from being lifted. The ball net is lowered from the support along the guide wire provided on the ground by the weight of the ball net. When ascending, the winch was actuated to wind up the elevating wire, thereby raising the ball-proof net along the pillar.

[0003]

[Problems to be solved by the invention]

 However, in the above-described net lifting device, when the ball-proof net is lowered, the ball-proof net receives the wind resistance when the ball-proof net is lowered. There was a danger that the column could not descend and this caused many damage to the columns. If the lowering speed of the ball net is reduced by the wind, the speed of the lifting wire will not be the same as the speed of sending out the lifting wire from the winch, and the lifting wire will be slackened. If the loosened state progresses further, the lifting wire wound around the drum in the winch will also loosen, and the lifting wire will eventually be in a turbulent state, making it impossible to lift and lower the ball net. State. Furthermore, such looseness and irregular winding of wires are often difficult to deal with without the help of specialists, and there are many problems in their maintenance.

An object of the present invention is to provide a net lifting device in which a lifting wire is always tensioned when a ball-proof net is raised and lowered, so that the wire is not loosened or turbulently wound. Another object of the present invention is to provide a net elevating device which eliminates troubles when elevating and lowering the ball-proof net, and which does not require as much maintenance as possible.

[0005]

[Means for Solving the Problems]

 That is, in order to solve the above-mentioned problem, the present invention connects a guide wire 2 provided on the ground side from the support column 1 and one end of the guide wire 2 to move up and down the net 4 along the guide wire 2. In a net elevating device comprising an elevating wire 5 connected to a winch 7 provided on the ground side via a pulley 6 provided on the pillar 1 at an end side, a lift between the pulley 6 and the net 4 is provided. The lifting wire 5 is provided with a weight 9 for tensioning the lifting wire 5. A guide wire 2 provided on the ground side from the support 21 and one end connected to the net 4 to move the net 4 up and down along the guide wire 2 and the pulley 6 provided on the support 1 at the other end. In a net lifting device comprising a lifting wire 5 connected to a winch 7 provided on the ground side via a wire, the net 4 is provided with a weight 9 for tensioning the lifting wire 5. It is characterized by. Specifically, a pulley 10 for suspending the lifting wire 5 is provided on the weight body 9. Also, a guide wire 2 provided on the ground side from the support 1, one end of the guide wire 2 is connected to the net 4 to move up and down the net 4 along the guide wire 2, and the other end is provided on the support 1. In a net elevating device comprising a lifting wire 5 connected to a winch 7 provided on the ground side via a net 6, a pulley 4a for suspending the lifting wire 5 is provided on the net 4 and is suspended. A weight 9 for tensioning the elevating wire 5 is provided on the tip side of the elevating wire 5. The weight 9 has an insertion hole through which the guide wire 2 is inserted in order to move up and down along the guide wire 2. The guide wire 2 is provided with a weight receiver 11 connected to the net 4 below the weight body 9.

[0006]

[Action]

 The above-mentioned net elevating device operates the winch 7 to send out the elevating wire 5 from the drum of the winch 7, and connects the net 4 connected via the pulley 6 to one end of the guide wire 2 fixed to the support 1 on the ground side. Lower along. At this time, by adding the weight of the weight body 9 provided between the pulley 6 and the net 4 to the own weight of the net 4, the lifting wire 5 is always sent out from the drum in a tensioned state without loosening. The Rukoto. Further, even when the descent of the net 4 is delayed, the lifting wire 5 is always in a state of tension due to the weight of the weight body 9, and the lifting wire 5 wound around the drum of the winch 7 does not loosen. .

When the weight body 9 is directly used for the net 4, the weight of the weight body 9 is added to the weight of the net 4, and the lifting wire 5 is always tightened and the lifting wire 5 is loosened. Does not occur. By attaching a pulley 10 for suspending the lifting wire 5 to the weight 9, the net 4 can be raised and lowered while moving the lifting wire 5 more smoothly. In addition, a pulley 4a is provided on the net 4 and a weight 9 for tensioning the lifting wire 5 is provided on the tip end side of the lifting wire 5, so that the lifting wire 5 can be moved by the weight of the weight 9. And the weight of the weight body 9 is added to the weight of the weight body 9 from a predetermined position, so that the net 4 can be raised and lowered smoothly. Further, since the weight body 9 moves up and down along the guide wire 2 through the insertion hole, the lifting and lowering can be performed more smoothly. When the weight body 9 descends along the guide wire 2 and moves downward by a predetermined distance, the weight body 9 comes into contact with the weight receiver 11 connected to the net 4 and the weight receiver 11 is lowered by its own weight. The net 4 can be reliably lowered along the guide wire 2.

[0008]

【Example】

 Hereinafter, an embodiment of the net lifting device according to the present invention will be described. In FIG. 1, a net 4 is connected via a ring body 3 to a guide wire 2 having one end fixed to a pillar 1 standing on the ground and the other end fixed to the ground. An elevating wire 5 whose tip is fixed to the upper end of the net 4 is wound around a drum 8 of a winch 7 provided on the ground side of the column 1 via a pulley 6 provided on the column 1. . A weight 9 is movably provided on a lifting wire 5 suspended between the net 4 and the pulley 6 via a fixed pulley 10. The weight body 9 is formed in a columnar shape, and an insertion hole 9a for allowing the guide wire 2 to be inserted with a margin is formed in the axis thereof. At the upper part of the ring body 3, a weight receiver 11 for receiving the weight body 9 connected to the net 4 and inserted through the guide wire 2 is provided.

As shown in FIG. 2A, when the net 4 is lowered, the net lifting device sends out the lifting wire 5 wound around the drum 8 of the winch 7 from the drum 8, and The weight 9 between the pulley 6 and the pulley 6 is lowered to the weight receiver 11 along the guide wire 2 with the lifting wire 5 being tensioned. Thereafter, as shown in FIG. 2 (b), the weight body 9 further moves the weight receiver 11 downward, thereby sequentially moving the ring body 3 inserted through the guide wire 2 downward, and the net 4 is also taken along. Will move downward. At this time, the weight of the net 4 also acts downward, so that the net 4 moves downward more smoothly. Therefore, even on a windy day, the net 4 can be descended while receiving wind resistance. When ascending the net 4, the lifting wire 5 pulled out to the drum 8 of the winch 7 is wound up, and thereby the net 4 is raised along the guide wire 2. Also at this time, since the weight of the weight body 9 works downward, the lifting wire 5 is always wound up in a tensioned state. Therefore, when the net 4 is moved up and down, the lifting wire 5 is not slackened, and the winding in the drum 8 due to the slack does not occur. For this reason, the net can be easily moved up and down even on windy days, and no maintenance is required because there are no troubles when going up and down.

In the above embodiment, the weight 9 is provided on the lifting wire 5 between the net 4 and the pulley 6, but as shown in FIG. 3, the net 4 is provided with the pulley 4a, and the lifting wire 5 is provided. By suspending the pulley 4a and providing a weight 9 at the tip thereof, the weight 9 is lowered along the guide wire 2 to the weight receiver 11, and the weight receiver 11 is further moved downward, so that the net 4 may be moved downward. Further, as shown in FIG. 4A, it is also possible to directly attach to the net 4 and move up and down together with the net 4.

Further, in the above-described embodiment, the weight 9 is made one. However, as shown in FIG. 4B, two weights 9 may be connected to each other. It is possible. It is also possible to attach the weight 9 without inserting it through the guide wire 2. Although the weight receiver 11 is provided in the above embodiment, the net 4 can be moved up and down without using the weight receiver 11.

[0012]

[Effect of the invention]

 The net lifting device according to the present invention is capable of raising and lowering the net with the tension wire always tensioned as compared with the conventional device. No troubles occur and the net can be raised and lowered smoothly even on windy days. This will also significantly reduce maintenance and other costs.

[Brief description of the drawings]

FIG. 1 is a schematic side view of a net elevating device showing one embodiment of the present invention.

FIGS. 2A and 2B are schematic side views showing the movement of a weight when the net descends.

FIG. 3 is a schematic side view showing another embodiment.

FIGS. 4A and 4B are schematic side views showing another embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Prop 2 ... Guide wire 4 ... Net 5 ... Elevating wire 6 ... Pulley 9 ... Weight body 11 ... Weight receiver

Claims (6)

[Utility model registration claims] A guide wire provided on the ground side of a support, and one end connected to the net to move up and down the net along the guide wire, and the other end connected to the support.
In a net elevating device comprising a lifting wire 5 connected to a winch 7 provided on the ground side via a pulley 6 provided on the ground, the lifting wire 5 between the pulley 6 and the net 4 Characterized in that a weight 9 for tensioning the wire 5 is provided. 2. A guide wire 2 provided on the ground side of the support 1 and one end connected to the net 4 to move the net 4 up and down along the guide wire 2.
And a lifting wire 5 connected to a winch 7 provided on the ground side via a pulley 6 provided on the ground, a weight 9 for tensioning the lifting wire 5 is attached to the net 4. A net lifting device. 3. The net lifting device according to claim 1, wherein the weight body is provided with a pulley for suspending the lifting wire. 4. A guide wire 2 provided on the ground side of the support 1; one end of the guide wire 2 is connected to the net 4 so as to move up and down the net 4 along the guide wire 2;
And a lifting wire 5 connected to a winch 7 provided on the ground side via a pulley 6 provided on the ground, a pulley 4a for suspending the lifting wire 5 is provided on the net 4. And a weight 9 for tensioning the elevating wire 5 is provided at the tip end of the suspended elevating wire 5. 5. The net according to claim 1, wherein the weight body 9 is provided with an insertion hole 2a through which the guide wire 2 is inserted in order to move up and down along the guide wire 2. lift device. 6. The net lifting device according to claim 5, wherein a weight receiver connected to the net is provided below the weight body on the guide wire.