WO2011071200A1

WO2011071200A1 - Mast head capable of adjusting tension of ropes

Info

Publication number: WO2011071200A1
Application number: PCT/KR2009/007381
Authority: WO
Inventors: 표옥근
Original assignee: (주)신흥이앤지
Priority date: 2009-12-10
Filing date: 2009-12-10
Publication date: 2011-06-16
Also published as: KR101003747B1

Abstract

The present invention relates to a mast head which is applied to a net structure for amusement. The mast head can adjust the tension of ropes by comprising: an adjusting shaft which is coupled and rotated at a top end of a mast by a coupling means and includes a screw thread formed partially on an outer surface thereof; and a moving body which includes a female screw formed at a center thereof so as to be coupled with the adjusting shaft and in which a combination part connected with ropes having one end fixed on a bottom is formed at an outer surface thereof so as to be moved upwardly and downwardly according to the rotation of the adjusting shaft.

Description

Adjustable mast head

The present invention relates to a technology that can be applied to the play net structure and the like to adjust the tension of the rope forming the net.

There is a variety of rides for children and one of them is a lot of play net structure that can be moved up and down in multiple directions at the same time.

Such a play net structure has the advantage of being able to be installed in various forms, and from the user's point of view, it can also be moved up and down while moving inside the entangled like a labyrinth.

The structure of the previously known play net structure will be described schematically, and FIG. 1 is a schematic cross-sectional view thereof.

As shown in the drawing, the mast 1 is installed in the center upward from the ground, and the connector for connecting the rope 3 is fixed around the mast 1 so as to be exposed on the ground. The mast 1 and the connecting body 2 are fixedly installed on a separate foundation, and a plurality of auxiliary ropes 4 are combined to form a net structure.

In order to allow children to climb up and down the net structure formed by the combination of rope and auxiliary ropes, the ropes must maintain proper tension. For this purpose, the connecting means installed on the ground is provided with a means of controlling tension such as turnbuckles. It is connected with the rope. And a rope is fixedly connected to the mast head formed in the upper end of the mast. Therefore, because the tension of the rope is made by means of a turnbuckle connected to a connecting body installed on the ground, the connecting body and the turnbuckle are exposed to the ground or made of elastic flooring material made of sand or waste tires. This causes many problems.

For example, there is a problem that a high risk of safety accidents, such as children jumping while hitting the connection or turnbuckle, or fall abrasion. In addition, there is a problem that there is a possibility that anyone can easily change the rope tension provided that the rope tension adjustment function is provided on the ground side that is easy to access. And when the connector is buried in the sand layer or elastic flooring material, it is inconvenient because the sand layer must be rolled out or the elastic flooring material must be pulled out every time the tension is adjusted. There was also a problem that can not be done.

Therefore, the present invention is to provide a mast head capable of adjusting the tension of the rope is formed on the top of the highest mast so that only the administrator can adjust the tension of the rope to prevent safety accidents.

The present invention for achieving the problem as described, relates to a mast head to which a plurality of ropes are connected, is installed to be coupled to the rotation by the restraining means at the upper end of the mast and adjustment to form a thread on the outer surface Axles; A female thread is formed in the center and is coupled to the adjusting shaft, and a fastening part is connected to one end of which ropes are fixed at the ground on the outer surface, and a moving body moves up and down as the adjusting shaft is rotated. It proposes a mast head which can adjust the tension, characterized in that to adjust the tension.

Preferably, the tension adjustable mast head proposes a mast head capable of adjusting tension, wherein a conical protective cap is installed on the moving body to prevent rain water from flowing into the inside.

Preferably, the restraining means includes: a support plate fixedly installed at the upper end of the mast and having a perforated insertion hole formed in the center thereof; The fixing shaft is fitted through the insertion hole and the flange formed on the outer surface of the adjusting shaft is in contact with the upper surface of the support plate and is fixed to the lower end of the adjustment shaft protruding more than the support plate; It proposes a mast head capable of adjusting the tension, characterized in that the shaft can be rotated.

Preferably, the fastening portion of the movable body, the rope is seated in the groove is formed recessed concave symmetrically on the upper surface side of the movable body, characterized in that the fixing body for preventing the separation of the rope is coupled to surround the rope We propose a mast head with adjustable tension.

Preferably, the movable body has a working space recessed to surround the mast top outer circumferential surface at a lower surface thereof, and a female screw portion is formed at a center thereof to be connected to the working space, and the fastening part is formed at an angle from the top of the movable body. It proposes a mast head capable of tension control, characterized in that formed on the slope surface.

The present invention should minimize the possibility of a safety accident due to the characteristics mainly used in children's play equipment, etc. For the connection of the rope inevitably install a connector on the ground, the tension control function through the mast head is installed on the top of the mast In this way, the connector or turnbuckle can be exposed to the ground.

In addition, since the tension control function is performed on the mast head, the rope tension can be changed only by the administrator, thereby preventing accidents caused by the rope tension change caused by intentional or accidental mischief.

1 is a schematic cross-sectional view of a play net structure according to the prior art;

Figure 2 is a schematic cross-sectional view of a play net structure using a mast head according to the present invention.

3 is a sectional view of the mast head.

4 is a plan view of a moving body.

5 is a front view of the adjustment shaft.

100: mast 200: mast head

210: adjusting shaft 211: thread

212 non-threaded 212a flange

213: tool fastening part 220: moving body

221: female thread portion 222: fastening portion

222a: groove 222b: fixture

223 operating space 224 slope surface

230: restraining means 231: support plate

231a: insertion hole 232: retaining ring

240: protective cap 300: rope

400: auxiliary rope 500: connecting member

Hereinafter, a detailed description of the present invention will be developed and reference will be made to related drawings according to preferred embodiments as a means to help understanding of the technical spirit of the present invention. However, it is to be understood that modified embodiments such as simple structural modifications made by others are also included in the technical scope of the present invention, since the drawings presented show only one possible example.

The present invention relates to a mast head capable of adjusting tension, and in particular, it can be applied to things such as a play net structure, but is not limited thereto, and the rope can be used as long as the tension control is required as needed. will be. In the preferred embodiment of the present invention will be described mainly with respect to the present invention is applied to the play net structure that is typically installed in a playground.

2 is a schematic cross-sectional view of a play net structure using a mast head according to the present invention, FIG. 3 is a cross-sectional view of the mast head, and FIG. 4 is a plan view of the moving body. 5 shows a front view of the adjustment shaft.

Play net structure is usually erected upright from the ground in the center of the mast 100, the mast head 200 is provided on the upper end of the mast 100 and a plurality of mast head 200 is installed from the ground Rope 300 is connected.

In the present invention, the main feature is that the tension control of the rope 300 is configured to be made in the mast head 200, not the ground, for this purpose, the mast head 200 is the adjustment shaft 210, the moving body 220 And restraining means 230.

As shown, the movable body 220 and the adjusting shaft 210 is installed at the upper end of the mast 100, the adjusting shaft 210 is installed so that the rotation operation is made at a predetermined position by the restraining means 230. The threaded portion 211 is partially formed on the outer surface of the adjustment shaft 210. The adjusting shaft 210 is erected upright on the mast 100 through the restraining means 230, the lower end portion of the adjusting shaft 210 is connected to the restraining means 230, the rotation operation is possible.

The adjusting shaft 210 is divided into a screw thread 211 region and a non-thread thread 212 region, and the screw thread 211 region is formed from an upper end to a predetermined height and is formed on a lower end of the adjusting shaft 210. The region will include a protruding flange 212a.

Constraining means 230 utilized in the present embodiment is to be largely configured to include a support plate 231 and a fixing ring 232, the support plate 231 is to be fixed to the upper end of the mast 100 The center is provided with a perforated insertion hole 231a. A fixing ring 232 is positioned on the lower surface of the support plate 231, and the fixing ring 232 is fitted with a non-screw part, which is a lower end of the adjustment shaft 210, through an insertion hole 231 a. Is coupled to the protruding part than the lower surface. That is, the flange 212a of the adjustment shaft 210 is erected to stand in contact with the upper surface of the support plate 231, and the lower end of the adjustment shaft 210 penetrating the insertion hole 231a is lower than the lower surface of the support plate 231. As the fixing ring 232 is protruded to be protruded, the adjusting shaft 210 may be rotatable with respect to the restraining means 230. It is preferable to have a tool fastening portion 213 for rotating the adjusting shaft using a tool at the top end of the adjusting shaft.

Various known methods may be used to connect the fixing ring 232 to the lower end of the adjustment shaft 210, and may be fixed by, for example, filling a bolt and engaging or welding.

The moving body 220 is moved up and down by the rotation of the adjusting shaft 210, for this purpose, a female threaded portion 221 is formed in the center of the moving body 220 and the thread 211 of the adjusting shaft 210 and A coupling part 222 to which a rope 300 is connected is provided on an outer surface of the movable body 220 to form a coupling. The ropes 300 extend upward while one end is fixed to the ground to be restrained by the fastening part 222. That is, since the plurality of ropes 300 are arranged at equal intervals around the mast 100 and fixed at the fastening part 222 of the moving body 220, when the adjustment shaft 210 is rotated, the moving body 220 is rotated. ) Is movable up and down.

The more detailed structure of the mobile body used in the present embodiment will be described.

A female screw part 221 is formed at the center of the moving body 220, and the female screw part 221 is connected to the working space 223 formed to be recessed to the lower surface of the moving body 220 and the working space 223. The part is combined in a form surrounding the top outer peripheral surface of the mast (100). Preferably, the moving part 220 is provided with a fastening part 222 recessed on an upper surface side thereof, and the rope 300 is seated on the groove 222a recessed concave in a symmetrical form to fix the rope. Fixing body 222b is wrapped around the rope to be fixed.

In the present exemplary embodiment, grooves 222a, which are recessed in a dish shape, are symmetrically provided on the left and right sides of the female screw part 221 of the moving body 220 to which the adjustment shaft 210 is coupled. In particular, the groove 222a is to be formed on the slope surface 224 formed obliquely from the top surface of the moving body 220. When one groove 222a is provided on the left and right sides of the female screw part 221 as in the present embodiment, each end of one rope 300 is fixedly connected to the ground and the middle portion of the rope 300 is grooved ( It is preferable that the rope is wrapped so as to be caught by the 222a so as not to be separated.

In addition, more preferably, by installing a conical protective cap 240 on the upper portion of the movable body 220 of the mast head configured as described above is configured to prevent rain water from flowing into the inside. If the protective cap 240 is installed on the upper portion of the movable body 220, since rainwater does not enter from the outside, durability can be increased.

Next, the play net structure in which the mast head having the above-described tension control function is used will be described.

As shown in FIG. 2, the play net structure of the present invention basically includes a mast 100, a mast head 200, a rope 300, an auxiliary rope 400, and the like. Unlike the present invention, the tension control function is provided to the mast head 200 installed on the top of the mast 100 to prevent the tension of the rope 300 from being adjusted from the ground.

More specifically, a long mast 100 is erected in the center and a mast head 200 having a tension control function is installed at the top of the mast 100. A plurality of connecting members 500 are formed on the ground around the mast 100, and a plurality of ropes 300 connecting the connecting members 500 and the mast head 200 are installed.

The rope 300 fixed on the ground is fixed to the groove 222a formed on the moving body 220 of the mast head 200, and the connection member 500 may use ones such as a known turnbuckle and simply The end of the rope may be looped and fixed to the connecting member.

In particular, the present invention is characterized in that the tension control is not controlled in the connection member 500, the tension control is made only in the mast head 200, and furthermore, the connection member 500 is installed so as to be buried below the ground It can be prevented from hitting this connecting member.

In addition, the secondary ropes 400 are formed to be directly or indirectly connected to the ropes 300 to form a net structure, which is well known, and thus a detailed description thereof will be omitted.

Structural configuration of the mast head 200 is as described above, largely comprises an adjustment shaft 210, the moving body 220 and the restraining means 230 to rotate the adjustment shaft 210 Accordingly, the tension of the rope 300 connected to the movable body 220 is adjusted by moving the movable body 220 up and down.

Mast head adjustable tension according to the present invention is applied to a play net structure, etc. can prevent safety accidents in advance and it is very likely to be used in children's play equipment because it is not easy to adjust the tension of the rope easily other than the manager. It will be high.

Claims

As for the mast head which a plurality of ropes are connected to,

An adjusting shaft coupled to the upper end of the mast by a restraining means and configured to rotate, and having a screw thread formed on an outer surface thereof;

A female thread is formed in the center and is coupled to the adjusting shaft, and a fastening part is connected to one end of which ropes are fixed at the ground on the outer surface, and a moving body moves up and down as the adjusting shaft is rotated. Tension adjustable mast head characterized in that the tension can be adjusted.
The method of claim 1,

Mast head capable of adjusting the tension,

The mast head is provided with a cone-shaped protective cap installed on the upper portion of the moving body to prevent rainwater from flowing into the inside.
The method of claim 1,

The restraining means,

A support plate fixed to the upper end of the mast and having a perforated insertion hole formed in the center thereof;

The fixing shaft is fitted through the insertion hole and the flange formed on the outer surface of the adjusting shaft is in contact with the upper surface of the support plate and is fixed to the lower end of the adjustment shaft protruding more than the support plate; Tension adjustable mast head, characterized in that the shaft can be rotated.
The method according to any one of claims 1 to 3,

Fastening portion of the moving body,

The rope is seated in a groove recessed in a concave and symmetrical symmetry on the upper surface of the moving body, the tension adjustable mast head, characterized in that the fixing body for preventing the separation of the rope is coupled to surround the rope.
The method of claim 4, wherein

The moving body,

An operating space is formed in the lower surface to surround the mast outer peripheral surface is formed, the female thread is formed in the center is connected to the operating space, the fastening portion is formed to be recessed in the oblique slope surface formed from the top of the moving body Mast head capable of adjusting the tension.