JP2015043934A - Connection leg of net for sport - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make a storage bulk compact without separating a protection net, make an adjacent protection net surface rotatable in a range of equal to or less than 180 degrees, and bring no complicated work of separating or assembling.SOLUTION: A connection leg of a net for sports includes: a corner connection part 36a curved by 90 degrees, connecting a frame 35d of a vertical side of a ball-protection net 30, and making a frame 35a of a bottom side of the ball-protection net 30 connectable thereto; an integral leg part 40 whose lower side extends to the front side and reverse side of the surface of the ball-protection net 30, whose upper side extends upward so as to hold the corner connection part 36a, and which is integrally connected to the corner connection part 36a; an engagement receiving part 50 arranged on the frame 35d of the vertical side of the ball-protection net 30; an engagement fitting part 60 of a cylindrical hole rotatable within 180 degrees, arranged on a frame 25b of a vertical side of an adjacent tee net 20, and fitted into the engagement receiving part 50; and an another corner connection part 26b curved by 90 degrees, connected to the frame 25b of the vertical side of an adjacent net for sports, and connectable to a frame 25 of the adjacent tee net 20.

Description

  The present invention relates to a sports net for practicing ball games such as baseball, tennis, softball, and golf. For example, in baseball, when a ball thrown by a pitcher is hit, the ball collides with the pitcher. The present invention relates to a connecting leg of a sports net used for a sports net designed to prevent this.

For example, there is an invention of Patent Document 1 in a pitcher protection net device in baseball practice.
That is, a frame that extends in the vertical direction and is installed on the ground so as to cover the pitcher from the front side, and a net that is attached to the frame by closing the space surrounded by the outer edge of the frame are provided. Further, the frame includes a main frame that forms a side portion on one side in the width direction, and a sub-frame that protrudes from the lower portion of the main frame to the other side in the width direction to form the other side portion of the frame. Yes. The sub-frame includes a fixed frame attached to a lower portion of the main frame and a movable frame provided so as to protrude upward from the fixed frame, and the height of the upper edge portion of the sub-frame can be adjusted. Yes.
When baseball batting practice is performed using this pitcher protection net device, first, it is installed on the ground in the vicinity of the front of the pitcher. The pitcher may be tall or low, so that the ball thrown by each pitcher toward the batter's hitting zone is thrown forward through a higher or lower position. Therefore, the height of the upper edge portion of the sub frame is adjusted so that the pitched ball passes near the upper portion of the upper edge portion of the sub frame. The pitching operation of each pitcher is prevented from being disturbed by the sub-frame.
When the pitching operation is finished and the pitcher is bent forward, almost the entire pitcher is covered from the front by the pitcher protection net device. Therefore, even if the hit ball flies toward the pitcher immediately after the pitch, the ball collides with the pitcher protection net device and is prevented from colliding with the pitcher, and as a result, the pitcher is protected.
According to this pitcher protection net device, in order to be able to adjust the height of the upper edge portion of the sub-frame, the sub-frame has a fixed frame attached to the lower part of the main frame, and an upward direction from the fixed frame. And a movable frame provided so as to be able to protrude, and the number of parts of the frame is large, so that the configuration is complicated and the manufacturing is complicated. There is also a problem that the carrying work becomes complicated.

Therefore, in the pitcher protection net device of Patent Document 2, a frame that is installed on the ground so as to cover the pitcher from the front in a vertical direction and a space surrounded by the outer edge of the frame are closed and attached to the frame. A main frame in which the frame forms a side portion on one side in the width direction, and the other side portion of the frame that protrudes from the lower portion of the main frame to the other side in the width direction. In a pitcher protection net device for baseball practice comprising a subframe that closes, a corner space sandwiched between a side edge portion on the other side of the upper portion of the main frame and an upper edge portion of the subframe is closed. In addition, an extension net that can be bent downward is provided, and an adjusting means that enables adjustment of the amount of bending of the upper edge of the extension net is provided.
For this reason, when using the pitcher protection net device, regardless of the height of the pitcher's back, pitching is performed by adjusting the amount of deflection of the upper edge of the extension net by operating the adjusting means. The height of the upper edge is adjusted to a desired position so that the sphere to be passed passes through the vicinity of the upper edge. This prevents the upper edge of the extension net from interfering with the pitch and protects each pitcher against the hit ball.
In this pitcher protection net device, when the height of the upper edge of the extension net is adjusted according to the height of the pitcher's back, this adjustment is achieved by the deflection of the upper edge of the extension net. For this reason, the number of parts of the frame is reduced as compared with the conventional technique in which a movable frame is used with respect to the fixed frame for the adjustment. Therefore, the configuration of the pitcher protection net device is simplified and the manufacture thereof is facilitated. Further, when the number of parts of the frame is reduced, the weight is reduced correspondingly, and the carrying work such as carrying can be facilitated.

  In Patent Document 2, the number of parts of the frame is reduced compared to the technique using a movable frame with respect to the fixed frame, the configuration of the pitcher protection net device is simplified, and the manufacture thereof is facilitated. The weight becomes light and the carrying work becomes easy. However, since it is necessary to separate the protective net when removing each frame, the time required for separation and assembly becomes long, and even if the number of parts of the frame is reduced, it is not very advantageous from the viewpoint of workability.

  In view of these technical problems, the invention of Patent Document 3 makes it easy to perform operations when putting the pitcher protection net device into a storage state or a use state, and easily moves to a desired position through a narrow space. A technique for enabling this is disclosed. That is, the pitcher protection net device is provided in parallel with a plurality of leg portions that are arranged side by side on the ground and extend in one horizontal direction, and a virtual plane that is substantially perpendicular to the one direction above the leg portions. A frame to be disposed, a support for supporting the lower part of the frame on the middle part in the longitudinal direction of each leg, and a flying ball attached to the frame by closing a space surrounded by the frame A support net, and a support pipe that protrudes upward from a midway in the longitudinal direction of the leg, and a support pipe that protrudes downward from a lower part of the frame and is detachably fitted to the support pipe. The other support pipe and one end of the two support pipes are fitted and locked, and the other end of the other support pipe is removably fitted into the other support pipe. Provided with an elastic locking body pressed against the peripheral surface, the other support And the inner peripheral surface of the type, in which the other end portion of the engaging member in pressure contact with this inner surface was a relatively slidable in the axial around the other of the support pipe.

Therefore, when the frame body is attached to or detached from each leg portion in order to change the pitcher protection net device from one of the housed state and the used state to the other state, the locking body is attached to both support pipes. The one end and the other end may be simply fitted and detached. Therefore, the work for changing the pitcher protection net device from one of the stored state and the use state to the other state is easier than in the conventional case where the fastener is loosened and fastened. It becomes. Since the inner peripheral surface of the other support pipe and the other end portion of the latching body pressed against the inner peripheral surface can be slid relative to each other around the axis of the other support pipe, the pitcher is protected in plan view. If the angle of each leg portion with respect to the frame body of the pitcher net device is changed, the leg portion of the pitcher protection net device and the leg portion of another pitcher protection net device adjacent to the pitcher protection net device Each frame of both pitcher protection net devices can be brought close to each other while avoiding mutual interference, and the angle between these frames can be selected variously, so that the degree of freedom of installation of the pitcher protection net device Will improve.
When the pitcher protection net device is not used, when storing through a narrow space, the inner peripheral surface of the other support pipe and the other end portion of the locking body pressed against the inner peripheral surface are connected to each other. The legs are slid around the axis of the support pipe, that is, each leg is rotated around the axis with respect to the frame, and the legs are positioned substantially on the extension line of the frame in plan view. Let Then, the thickness dimension in the said one direction of the pitcher protection net apparatus becomes small, and the pitcher protection net apparatus can be moved through a narrow place.

No. 7-19487 JP 2001-204869 A JP 2001-79135 A

Thus, in Patent Document 1, when baseball batting practice is performed using a pitcher protection net device, the balls thrown by each pitcher toward the batting zone of the batter pass through a higher position or a lower position. Although the pitch is thrown forward, the height is adjusted so that the pitched ball passes near the upper edge of the upper edge of the sub-frame, and the pitching motion of each pitcher is prevented from being disturbed by the sub-frame. The technology is disclosed.
Patent Document 2 discloses a technique for disassembling the pitcher protection net device used therein, but the number of parts when disassembled is reduced, and the configuration of the pitcher protection net device is simplified. If the protective net is also separated from the frame, the time required for separation and assembly becomes longer, and efficient disassembly and assembly are not performed.
In Patent Document 3, since it is not necessary to connect each frame and the protective net at the time of separation and assembly, efficient separation and assembly can be performed. However, when the protective nets are arranged in a row, consideration has been given to overturning, but when two or more pitcher protection net devices are adjacent to each other, the legs cross each other or resistance to overturning to escape Became smaller and weaker.

  Therefore, the present invention can be made compact with the storage volume raised without separating the protective nets, the adjacent protective net surfaces can be rotated within a range of 180 degrees or less, and complicated separation and Therefore, it is an object to provide a connection leg for a sports net that does not involve assembly work.

  The connecting leg of the sports net according to the invention of claim 1 connects one frame end of the vertical side of the sports net and can freely connect to one frame end of the bottom of the sports net. A corner connecting portion that is curved, a lower portion that extends to the front and back sides of the surface of the sports net, and an upper portion that is connected so that the upper portion sandwiches the corner connecting portion, and the sports net An engagement receiving portion disposed on one frame of the vertical side and a lower portion of one frame of the vertical side of the adjacent sports net, and fitted with the engagement receiving portion, 180 degrees The bottom end of the adjacent sports net is connected to the engagement fitting portion of the bottomed cylinder which can freely rotate and one frame end of the vertical side of the adjacent sports net. Part and contact Those having a the other corner connecting portion that is bent 90 degrees and freely.

Here, the sports net and its vertical side frame are a net made of synthetic resin for practice of baseball, tennis, golf, etc., and functionally, a machine net, a tee net, It may be divided into ball-proof nets and the size of the nets is determined depending on the application. For example, when a ball thrown by a pitcher is hit, the frame prevents the ball from colliding with the pitcher and allows the tossed ball to fly at an angle within a specific range. It is a metal frame that can set an appropriate tension as a protective net for practicing baseball, tennis, golf and the like. Usually, it is a rectangle.
In addition, the corner connecting portion curved by 90 degrees is formed in a right angle in principle, but by chamfering the corners, the tension on the sports net is made uniform. Actually, it is only necessary that the end of the frame on the vertical side and the end of the frame on the low side can be connected by two freely connectable ends. This connection is made by welding a 15-20 cm steel bar (solid bar) approximately equal to the inner diameter to the end of the frame on the vertical side and the end of the frame on the low side and projecting it by 7-10 cm. Is preferably inserted into the opening of the corner connecting portion and connected by bolting.

The lower part extends to the front side and the rear side of the protective net surface of the sports net, and the upper part is integrally connected to one frame end of the vertical side of the sports net so as to sandwich the corner connecting part. The leg part makes it easy for the sports net to stand upright, and if it is disposed at an angle of 90 degrees with respect to the sports net, the legs may have casters at the bottom or at the end. It does not have to be attached.
In addition, the integrated leg part connected so that the upper part sandwiches the corner connection part has legs formed on both sides of the corner connection part, that is, on the front side and the back side of the protective net surface of the sports net. That's fine. Further, an auxiliary reinforcing bar or another pipe material may be added and welded to the integral leg in a bracing manner.
Still further, the engagement receiving portion and the engagement fitting portion are configured such that the engagement receiving portion is disposed on one frame on the vertical side of the sports net, and the frame is used because of the stability of mechanical strength. Those extending in the length direction are desirable. In addition, the engagement fitting portion is disposed at a lower portion of one frame on the vertical side of the adjacent sports net, is fitted to the engagement receiving portion, and is a cylinder that can freely rotate within 180 degrees. Any hole may be used. The cylindrical hole may have a structure in which water droplets or the like do not enter from above in the inserted state.

  In addition, the other corner connecting portion curved by 90 degrees is connected to one frame end of the vertical side of the adjacent sports net and the end of the frame on the bottom side of the adjacent sports net The sports net and the adjacent sports net are not basically different from each other, but in the present invention, a tee net for receiving a ball, a ball-proof ball with a net on the entire surface. A plurality of nets, machine nets that mechanically supply balls or the like are used to make a batting gauge, or a fence of a predetermined length, which is used for a multipurpose purpose as a sports aid.

  An engagement receiving portion disposed on one frame of the vertical side of the sports net, and an engagement receiving portion disposed on one frame of the vertical side of the adjacent sports net, and fitted with the engagement receiving portion. In addition, the description has been made on the assumption that the engagement fitting portion that can freely rotate within 180 degrees is provided on the frame, but it can also be provided on the corner connection portion. That is, an engagement receiving portion disposed in one frame or the corner connection portion of the vertical side of the sports net, and one frame or corner connection portion of the vertical side of the adjacent sports net. It can be set as the structure with the engagement fitting part which is provided, is fitted with the said engagement receiving part, and can freely rotate within 180 degree | times.

The connecting leg of the sports net according to the invention of claim 2 is such that a part of bar steel or the like is inserted and fixed to the frame end of the vertical side and the frame end of the bottom side of the sports net that can be bolted and the adjacent sports net And forming a protruding portion made of the steel bar by protruding the other portion, inserting the protruding portion into the corner connecting portion, and arranging a bolt for screwing the protruding portion into the corner connecting portion. is there.
Here, without depending on the type of sports net, the protruding portion made of steel bar or the like disposed at the frame end on the vertical side and the frame end on the bottom side is the end of the frame when screwed with a bolt. The force can be distributed without deforming the side and the end side of the corner connecting portion is not deformed, and can be firmly fixed. It is preferable that the depth of insertion of the steel bar or the like on the end side of the corner connecting portion is such that the end of the steel bar or the like can be stopped by a change due to the curvature.

According to a third aspect of the present invention, there is provided a sports net connecting leg comprising: an engagement receiving portion disposed on one frame of the vertical side of the sports net; and one frame of the vertical side of an adjacent sports net. The engagement fitting portion that is disposed in the lower portion of the frame and that engages with the engagement receiving portion includes a steel bar fixed to a frame end portion of a vertical side of the sports net or an adjacent sports net, and an end portion of the frame And welded together.
Here, the engagement receiving portion is provided on the frame on the vertical side of the sports net and may have a structure that does not separate in the horizontal direction. What to do is desirable. The engagement fitting portion is disposed at a lower portion of the frame on the vertical side of the adjacent sports net and is fitted with the engagement receiving portion. The engagement receiving portion and the engagement fitting portion are welded together with a steel bar fixed to a frame end portion of a vertical side of a sports net or an adjacent sports net and their frame end portions. It is desirable to weld together to increase mechanical strength.

The integrated leg connected so as to sandwich the corner connecting portion of the connecting leg of the sports net according to the invention of claim 4 has a steel bar inserted at an upper end thereof, and the integrated leg is formed around the corner connecting portion. One of the legs, the steel bar, and one of the other legs of the integrated leg farmland are welded through the steel bar and the steel bar.
Here, it is desirable that the steel bar inserted into the upper end of the integral leg portion should secure at least a distance for welding. Moreover, rainwater can be prevented from entering by welding the end portions.

The connecting leg of the sports net according to claim 1 is curved at 90 degrees so as to connect one frame end of the vertical side of the sports net and connect to one end of the bottom frame of the sports net. The corner connecting portion and the lower leg extend to the front side and the rear side with respect to the protective net surface of the sports net, and the upper leg is integrally connected so as to sandwich the corner connecting portion. It is used when setting up a business net. That is, one sports net is formed by one protective net, four frames for stretching the protective net, and four corner connecting portions.
On the other hand, if an engagement receiving portion disposed on the frame on the vertical side of the sports net is provided, the frame on the vertical side of the adjacent sports net can be used when the adjacent sports net is required. If the engagement fitting part of the bottomed cylinder which can be freely rotated by 180 degrees disposed at the lower part of the sports net is fitted, the sports net can be additionally connected. At this time, since it can be adjacent in an angle range of 180 degrees, two, three or more can be adjacently installed, and the angle between the adjacent sports nets varies ± 90 degrees. You can have it. At least a sports net is composed of one sports net, one protective net, four frames that stretch the protective net, and four corner connections, and two Since it has the basic structure which has the integral leg part which makes a pair, it can be set as the connection leg of a sports net with high safety | security. In other words, a sports net is integrally assembled with four corner connecting parts including one protective net, four frames for stretching the protective net, and two integral legs. Therefore, even when a plurality of sheets are installed or for each unit, installation is easy and the storage volume can be made compact. Further, the adjacent protective net surface can be freely rotated within a range of 180 degrees or less. And it can manage without separating the protective net.
Therefore, the storage volume can be made compact without separating the protective net, the adjacent protective net surface can be rotated within a range of 180 degrees or less, and complicated separation and assembly like the protective net can be performed. No work involved.

  The sports net connecting leg according to claim 2 is provided at a frame end portion and a bottom frame end portion of a vertical side of the sports net, and a frame end portion and a bottom frame end portion of a vertical side of the adjacent sports net. Is a protruding part formed by inserting and fixing a part of a steel bar to the frame end part of the vertical side and the base part of the bottom side of the sports net that can be bolted and the adjacent sports net and projecting the other part of the steel bar In addition to the effect of claim 1, the frame end portion of the vertical side and the frame end portion of the bottom side of the sports net, and the bolts for screwing the protruding portion are provided. The frame end of the vertical side and the frame end of the bottom side of the adjacent sports net are firmly fixed by bolting, the sports net and the adjacent sports Net can be firmly constructed.

  The connection leg of the sports net according to claim 3 includes an engagement receiving portion disposed at a lower part of one frame of the vertical side of the sports net, and one frame of the vertical side of the adjacent sports net. The engagement fitting portion that is disposed in the lower portion and engages with the engagement receiving portion includes a steel bar fixed to a frame end portion of the vertical side of the sports net or the adjacent sports net and the frame end portion thereof. Since it is welded, in addition to the effect according to claim 1 or claim 2, the engagement receiving portion and the engagement fitting portion are not only welded to a limited frame thickness, but also a frame. By welding with the internal steel bar, a solid weld finish is obtained.

  An integrated leg connected so as to sandwich the corner connecting portion of the connecting leg of the sports net according to claim 4 has a steel bar inserted at an upper end thereof, and one of the integrated legs around the corner connecting portion. 4. The effect according to any one of claims 1 to 3, wherein the leg is welded via another leg of the steel bar and the integral leg, and the steel bar. In addition, since the steel bars inserted around the corner connecting portion, the integrated leg portion, and the upper end of the integrated leg portion are integrated by welding, the mechanical strength of the integrated welded portion is increased. Further, by welding the upper end of the integral leg portion, rainwater does not enter and it is difficult to rust.

FIG. 1 is an explanatory view of an example of use in which a set of three-surface nets using connection legs of a sports net according to an embodiment of the present invention is used. FIG. 2 is an explanatory diagram of a usage example showing the development of the three-sided net developed using the connection leg of the sports net according to the embodiment of the present invention shown in FIG. FIG. 3 is an explanatory diagram of a usage example of a three-surface net in which the connection legs of the sports net according to the embodiment of the present invention are deployed and arranged as a ball-proof net. FIG. 4 is an explanatory diagram of an example in which a batting area is secured by using a three-surface net for the connection leg of the sports net according to the embodiment of the present invention. FIG. 5 is a perspective view showing the development of the connecting leg of the sports net according to the embodiment of the present invention. FIG. 6 is a perspective view of the connection leg of the sports net according to the embodiment of the present invention. (A) is only a reference leg, and (b) is a leg when a frame is further assembled. Is shown. FIG. 7 is a perspective view showing the entire connection leg of the sports net according to the embodiment of the present invention. FIGS. 8A and 8B are explanatory diagrams for explaining the connection of the connecting leg of the sports net according to the embodiment of the present invention. FIG. 8A is a description of the corner connecting portion, and FIG. 8B is the description of the connecting leg of the sports net. FIG.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
Note that, in each embodiment, the same reference numerals and the same reference numerals shown in the drawings are the same or corresponding functional parts, and therefore, redundant description thereof may be omitted here. Moreover, although the connection leg of the sports net of the present invention is usually provided on one or both of the sports net, it will be described as an example in which it is formed only on one side. However, when the present invention is implemented, it can be installed on either one side or both sides, and it is desirable to have left-right symmetry for ease of use.

First, the connection leg of the sports net according to the embodiment of the present invention will be described.
FIG. 1 shows a set of three-surface nets in which a tee net 20 is arranged in the center, a ball-proof net 30 on one side, and a machine net 10 on the other side. The machine net 10 disposed on the right side of the figure is stretched over the entire surface by a protective net 11 attachment rope 14. A ball is supplied from a ball supply opening 12 at the center of the protective net 11 by a tossbatting machine (not shown), and the batter blows a hit ball to the tee net 20 side. In addition, the connecting leg of the sports net of the embodiment of the present invention is disposed on the corner connecting part 26a side and the corner connecting part 26b side on both sides of the tee net 20 of FIG.
Here, the machine net 10, the tee net 20, and the ball-proof net 30 may include the whole without distinction as a sports net when the type is not specified. For example, in the case of FIG. 2, the ball supply opening 12 is closed with another auxiliary net 13 and is substantially used as a ball-proof net 30.

A protective net 21 is stretched over the entire surface of the tee net 20, and a collection net 22 that receives and collects hit balls is disposed. In order to reduce the energy of the ball that has hit the ball, the ball flying at high speed collides with the net, rapidly reduces the velocity energy, and is collected in the bag-like portion 23. Therefore, even if the batter hits the tee net 20 side, it usually collides in the collection net 22 and loses its velocity energy and is collected in the bag-like portion 23, so that the ball does not rebound. . Even if it collides with the protective net 21 outside the collection net 22, since the restitution coefficient of the protective net 21 is small, the hit ball hit by the batter does not collide with the protective net 21 and bounce back to the batter.
Further, the ball-proof net 30 has a protective net 31 stretched over the entire surface, and since the coefficient of restitution of the protective net 21 is set small, the hit ball hit by the batter does not rebound greatly.

In the present embodiment, the configuration in which the machine net 10, the tee net 20, and the ball-proof net 30 can be installed in FIG. 1 is a set of three-surface nets, which is a general usage method and a name as a product. Is meaningless. For example, there are cases where three surfaces are constituted by the ball-proof net 30, and there are cases where only the tee net 20 is replaced by the ball-proof net 30. In addition, the opening (installation angle) of the standing machine net 10, tee net 20, ball-proof net 30, etc. is also perpendicular to the central sports net (machine net 10, tee net 20, ball-proof net 30). When a sports net adjacent to is arranged, it may be installed in a row.
In addition, when installing a sports net in a row, or when installing in a zigzag, it may be a small volume in the sense of storage.

In the set of three-sided nets in FIG. 1, the example in which the batter performs batting practice toward the tee net 20 has been explained. A machine net 10 can be installed and a batting practice can be performed on the open side where there is no three-sided net.
That is, the sports net including the machine net 10, the tee net 20, and the ball-proof net 30 can be installed as necessary. Moreover, it can also be enclosed by a sports net so as to protect the pitching machine.
One to three sports nets are installed behind the pitcher who is practicing pitching, and can be used not only for batters but also for protecting the pitcher. That is, the sports net of the present embodiment comprising the machine net 10, the tee net 20, and the ball-proof net 30 can protect batters, catchers and pitchers in the case of baseball or softball. When used for golf practice, the player only needs to hit the tee net 20 side. Thus, it can be used in the same manner as the conventional one for practicing ball games such as baseball, tennis, softball and golf.

  The sports net including the machine net 10, the tee net 20, and the ball-proof net 30 is formed by a quadrangular frame with four corners chamfered, and the quadrangular frame is a frame 15a, 15b, 15c, 15d composed of four straight lines. Frames 25a, 25b, 25c, 25d, frames 35a, 35b, 35c, 35d, corner connecting portions 16a, 16b, 16c, 16d, corner connecting portions 26a, 26b, 26c, 26d, corners The connection parts 36a, 36b, 36c, and 36d and the protection nets 11, 21, and 31 are configured, and the configuration excluding the ball supply opening 12 and the collection net 22 is basically the shape of the ball prevention net 30. Therefore, the following description will be made mainly on the case of the ball-proof net 30 with reference to the drawings.

As shown in FIGS. 2 and 3, the frames 35a, 35b, 35c, and 35d are made of metal pipe material, and 38 mm is used here. However, when the present invention is carried out, the frame 35a, 35b, 35c, and 35d is within the range of 20 to 50 mm. Is suitable for use. Although the length is 2.5 m, the length up to about 3 m, specifically 2.7 m is preferable in consideration of disassembly and installation. Further, the corner connecting portions 36a, 36b, 36c, 36d are bent on both sides of 15 cm when viewed as a right angle. In other words, the corners 35a, 35b, 35c, and 35d are connected to the corner connecting portions 36a, 36b, 36c, and 36d, and have a total frame configuration with four sides of 3 m. The protection net 31 stretched over the entire surface of the entire frame configuration has a length of 3 m on four sides in the stretched state. The protective net 31 is attached to the entire frame of the ball-proof net 30 by an attachment rope 34. The protection net 11 is attached to the frame of the machine net 10 by the attachment rope 14, and the protection net 21 is attached to the frame of the tee net 20 by the attachment rope 24.
The embodiment of the present invention shown in FIGS. 2 and 3 is disposed on the tee net 20 side of the ball-proof net 30 and on the tee net 20 side of the machine net 10. Further, the embodiment of the present invention shown in FIG. 4 is arranged on the machine net 10 side of the ball-proof net 30 and on the machine net 10 side of the tee net 20.

5 and 7 are examples in which the connecting legs of the sports net according to the embodiment of the present invention are disposed on the corner connecting portion 26b of the tee net 20 and the corner connecting portion 36a side of the ball-proof net 30 of FIG. FIG. 6 shows an example of the integrated leg portion 40 disposed on the corner connecting portion 36b side of the ball-proof net 30.
5 to 7, corner connecting portions 36a, 36b, 36c, and 36d are disposed at the corners of the sports net, and the frame ends of the upper frame 35c are connected to the corner connecting portions 36c and 36d. Is done. The corner connecting portions 36c and 36d are curved by 90 degrees so that the frame end portion of the frame 35c on the upper side of the sports net can be connected. Further, as shown in FIG. 1, the corner connecting portions 36c and 36d are connected to a distance setting member 70 that supports a specific distance. The corner connecting portions 36c and 36d have projecting members 15d2 and 35d1 (see FIG. 2) connected to the left and right setting holes 71L and 71R of the interval setting member 70. This interval setting member 70 is used when a regular cube is formed by the entire frame and has a function of preventing the opening angle of the sports net from changing and increasing the overall mechanical strength. It can also be adjusted to any angle by the fixing material that stops the operation.

A frame 35b is connected below the corner connecting portion 36c, a frame 35d is connected below the corner connecting portion 36d, and the other end of the frame 35b is a corner connecting portion 36b, and the other end of the frame 35d is a corner connecting portion 36a. The frame 35a is connected to the other end of the corner connection portion 36a and the other end of the corner connection portion 36b.
Here, as shown in the perspective view of the connecting leg of the sports net shown in FIG. 6 (a), the corner connecting portion 36b has a lower side on the front and back sides of the surface of the sports net, that is, the frame 35a. An integrated leg 40 comprising leg 41 and leg 42 integrally connected by welding with the corner connecting part 36b extending upward so that the upper part sandwiches the corner connecting part 36b. Yes. An integral leg 40 is disposed at one end of the frame 35 a of the ball-proof net 30. In addition, the integral leg part 40 is comprised from the leg part 41 and the leg part 42 which were welded to the corner connection part 36b, and it is difficult to connect with the adjacent sports net only by the function of the integral leg part 40. .

  The leg part 41 which comprises the integrated leg part 40 is comprised by the horizontal part 41a and the vertical part 41b, and the leg part 42 is also comprised by the horizontal part 42a and the vertical part 42b. Here, a steel bar (not shown) having an outer diameter equal to or substantially equal to the inner diameter is inserted into the straight vertical portion 41b and the vertical portion 42b (technically, refer to FIG. 8). The length is such that the inserted upper end is equal to the end surface of the vertical portion 41b or the vertical portion 42b, or protrudes several millimeters or more from the end surface. And the end surface of the vertical part 41b and the vertical part 42b is integrated by welding. At this time, preferably, the straight vertical portion 41b and the vertical portion 42b are slit so that the vertical portion 41b and the steel bar, and the vertical portion 42b and the steel bar are welded in the vertical direction so as to sandwich the corner connecting portion 36b. It is desirable to weld to a method for increasing the mechanical strength.

  Further, the leg portion 41 and the horizontal portion 41a of the leg portion 42 constituting the integrated leg portion 40 and the end portion of the horizontal portion 42a are covered with a cap 43 made of synthetic resin. The cap 43 made of synthetic resin has a high sealing performance so as to prevent the integrated leg portion 40 from corroding due to the intrusion of rainwater. Of course, steel bars may be welded to improve sealing performance, or only the leg portions 41 and the horizontal portions 41a of the leg portions 42 and the end portions of the horizontal portions 42a are compressed, and rainwater is compressed there. It can also be closed to prevent entry.

As shown in FIG. 7, the corner connecting portion 36a extends from the front and back sides of the protective net 31 of the sports net, that is, in a direction perpendicular to the frame 35a, and curves upward to sandwich the corner connecting portion 36a. Thus, an integrated leg 40 composed of a leg 41 and a leg 42 integrally connected to the corner connecting part 36a is formed. In this embodiment, the frame 35d is provided with an engagement receiving portion 50, and the adjacent sports net frame 25b is provided with an engagement fitting portion 60.
In addition, the connection leg of the sports net of the present embodiment is adjacent to the corner connection part 36a, the integrated leg part 40 including the leg part 41 and the leg part 42, and the engagement receiving part 50 disposed on the frame 35d. It is comprised by the engagement fitting part 60 arrange | positioned at the flame | frame 25b of the sports net.

  The leg part 41 which comprises the integrated leg part 40 is comprised by the horizontal part 41a and the vertical part 41b, and the leg part 42 is also comprised by the horizontal part 42a and the vertical part 42b. Here, steel bars having an outer diameter equal to or substantially equal to the inner diameter are inserted into the linear vertical portion 41b and the vertical portion 42b. The length is equal to the end surfaces of the vertical portion 41b and the vertical portion 42b, or has a structure protruding several millimeters or more from the end surfaces. The end surfaces of the vertical portion 41b and the vertical portion 42b are integrated by welding, and preferably, a slit is formed in the straight vertical portion 41b and the vertical portion 42b, so that the vertical portion 41b, the steel bar, and the vertical portion are vertically arranged. It is desirable to weld 42b and a steel bar so as to sandwich the corner connecting portion 36b.

  As shown in FIG. 7, the engagement receiving part 50 is arrange | positioned in the lower part position of one flame | frame 35d of the perpendicular | vertical side of a sport net | network, normally an edge part side rather than about 10 cm from the edge part of the frame 35d. The engagement receiving portion 50 has an L-shaped basic shape, sets a separation distance from the frame 35d, and prevents a contact with the rotation angle and the engagement fitting portion 60, and the separation member 51. It is formed by a support member 52 made of a round bar (steel bar) connected to. Since the load from the engagement fitting portion 60 is applied to the spacing member 51, it is desirable to have a pointed shaft or a pivot shaft. However, if the spacing member 51 does not rotate frequently, it is necessary to consider it. There is no.

The engagement receiving portion 50 has a separation member 51 covered by the engagement fitting portion 60. The engagement receiving portion 50 is disposed on one frame 25b on the vertical side of the adjacent sports net, and is engaged with the separation member 51. In relation to the joint receiving unit 50, the sports net is a cylindrical hole that can freely rotate within 180 degrees with respect to the machine net 10, the tee net 20, and the ball-proof net 30 as the adjacent sports net. . That is, it changes ± 90 degrees with respect to the leg 41 and the leg 42 constituting the integrated leg 40.
Since the engagement fitting portion 60 is a bottomed cylinder and receives the load of the tee net 20 on the spacing member 51, it is desirable to have a rigid structure. In the present embodiment, the engagement receiving portion 50 and the engagement fitting portion 60 are also provided on the upper portion of the frame 35d of the ball-proof net 30 and the upper portion of the frame 25b of the tee net 20 to distribute the load on the tee net 20. ing.
The engagement fitting portion 60 has an L-shaped basic shape, and a separation distance from the frame 25b is set by a separation member 61, and a fitting member made of a round bar (steel bar) connected to the separation member 61. 62.

  The connection leg of the sports net of the present embodiment configured as described above is connected to the end of one frame 35d on the vertical side of the sports net as the ball-proof net 30 and one of the bottom sides of the ball-proof net 30 A corner connecting portion 36a that is curved at 90 degrees, with the end portion of the frame 35a being freely connectable, and the lower portion extends to the front side and the rear side with respect to the surface of the ball-proof net 30, and the upper portion sandwiches the corner connecting portion 36a. As an adjacent sports net, an integral leg portion 40 that extends upward and is integrally connected to the corner connection portion 36a, an engagement receiving portion 50 disposed on one frame 35d on the vertical side of the ball-proof net 30 The tee net 20 has a cylindrical hole engagement fitting portion 60 which is disposed on one frame 25b on the vertical side of the tee net 20 and fits with the engagement receiving portion 50 and is freely rotatable within 180 degrees. Yes.

  Here, the engagement receiving portion 50 disposed on the frame 35d on the vertical side of the ball-proof net 30 and the engagement receiving portion disposed on the frame 25b on the vertical side of the tee net 20 as an adjacent sports net. 50 is fitted, and the tee net 20 side can freely rotate within 180 degrees. At this time, the ball-proof net 30 is provided with the integral leg portion 40, and the bottom surface thereof and the bottom surface of the frame 25b on the vertical side of the tee net 20 are the same or substantially the same. When the tee net 20 as a sports net adjacent to the machine net is not in a straight line, the sports net consisting of the machine net 10, the tee net 20, and the ball-proof net 30 where the integral leg portion 40 is not disposed is the bottom frame 15a, 25a, 35a functions as a leg.

With this configuration, one of the ball-proof nets 30 can be erected only by the pair of integrated leg portions 40 shown in FIG. With respect to the standing ball-proof net 30, an engagement receiving portion 50 disposed on the frame 35d of the ball-proof net 30 and an engagement fitting portion 60 disposed on the frame 25b of the tee net 20 are provided. By setting the insertion state, one side of the tee net 20 is erected. Therefore, the front end disposed on the frame 25a on the other bottom side of the tee net 20 is erected by the integrated leg portion 40 shown in FIG. 6A, or this embodiment using the integrated leg portion 40 shown in FIG. It can be connected sequentially with the connecting leg of the sports net of the form.
If you connect with the sports net connection legs shown in Fig. 7 in order, you can also select the storage method to fold in zigzag, and set up several sports nets, some of them at a 90 degree angle Can also be erected. This is also one of the storage methods.

At this time, the ball-proof net 30 and the tee net 20 are freely rotatable by ± 90 degrees with respect to the frame 35 d of the ball-proof net 30, that is, within the range of 180 degrees with respect to the ball-proof net 30. Can be installed.
However, when the protruding portion 81 of the frame 35d is inserted into the vertical portion of the corner connecting portion 36a from the upper portion of the corner connecting portion 36a and is not tightened with the bolt 82, the bolt 82 of the corner connecting portion 26b of the tee net 20 is temporarily assumed. Even if the bolt 82 is tightened, the screwing depth of the bolt 82 is short, so that the bolt head collides and cannot freely rotate. Therefore, at the time of assembly, by confirming the rotation of the tee net 20, it is possible to confirm the tightening condition of the bolts 82 and the bolts 82.

In addition, when a sports net composed of the machine net 10, the tee net 20, and the ball-proof net 30 is installed adjacently, the distance between the adjacent sports nets is set to 15 to 30 mm or less, so that It is possible to prevent passage from the ball to the golf ball. The sports net including the machine net 10, the tee net 20, and the ball-proof net 30 has the bottom frames 15a, 25a, and 35a on the same plane as the horizontal portion 41a and the horizontal portion 42a of the integral leg portion 40. Therefore, the entire load is not applied to the connection portion between the engagement receiving portion 50 and the engagement fitting portion 60.
When the present invention is implemented, the adjacent sports net only needs to change within ± 90 degrees, so that the separating member 51 and the support receiving member 52 of the engagement receiving unit 50 and the engagement fitting unit 60 are separated. It can be set by the member 61 and the fitting member 62, in particular, the separation member 51 and the separation member 61.

And the sports net consisting of the adjacent machine net 10, tee net 20 and ball-proof net 30 can be installed at least at the end at right angles to the sports net, so that the integrated leg 40 can be installed, and the standing state is maintained stably. it can.
Furthermore, the ends of the vertical sides 35b and 35d of the sports net comprising the machine net 10, the tee net 20 and the ball-proof net 30 and the ends of the bottom frame 35a and the vertical side frame 25b of the adjacent tee net 20 are provided. 25d and the bottom of the frame 25a at the bottom, as shown in FIG. 8, the ends of the frames 25b and 25d on the vertical side of the sports net that can be fixed by the bolt 82 and the adjacent sports net A part of the steel bar is fixed to the end of the bottom frame 25a, a protrusion 81 is formed by protruding the other part, and a bolt 82 for screwing the protrusion 81 is provided. A sports net is constructed.
8A shows an example of connection of the corner connection portion 36a of the ball-proof net 30 of FIG. 1 according to the embodiment of the present invention, and FIG. 8B shows the corner connection portion 36a of the ball-proof net 30 and the tee. This is a connection example with the corner connection portion 26b of the net 20.

  The connecting legs of the sports net of the above embodiment are arranged on the frames 15b, 15d, 25b, 25d, 35b, and 35d on the vertical side of the sports net consisting of the machine net 10, the tee net 20, and the ball-proof net 30. The engagement receiving portion 50 and the engagement fitting portion 60 which is disposed on the frames 15b, 15d, 25b, 25d, 35b and 35d on the vertical side of the adjacent sports net and engages with the engagement receiving portion 50, Projections 81 made of steel bars fixed to the ends of the frames 15b, 15d, 25b, 25d, 35b, 35d on the vertical sides of these sports nets or adjacent sports nets, and their frames 15b, 15d, 25b, 25d, It welds with the edge part of 35b, 35d.

Therefore, the engagement receiving part 50 and the engagement fitting part 60 are not only welded to the limited thickness of the frames 15b, 15d, 25b, 25d, 35b, 35d, but also the frames 15b, 15d, 25b, 25d, 35b. , 35d is welded to the protruding portion 81 such as a steel bar, so that a solid welding finish can be obtained.
For the steel bars inserted into the frames 15b, 15d, 25b, 25d, 35b, 35d, through holes are provided so that the frames 15b, 15d, 25b, 25d, 35b, 35d can be welded to the steel bars, or the welding temperature is increased. It is desirable. The inventors provided through holes in the frames 15b, 15d, 25b, 25d, 35b, and 35d and welded from the periphery.

The connection leg of the sports net of the above embodiment has the ends of the frames 15b, 15d, 25b, 25d, 35b, 35d on the vertical side of the sports net consisting of the machine net 10, the tee net 20, and the ball-proof net 30. The bolt positions of the corner connecting portions 16a, 16b, 26a, 26b, 36a, 36b connected to the ends of the frames 15a, 25a, 35a at the bottom of the sports net are the vertical sides of the adjacent sports net The positions of the bolts 81 of the other corner connecting portions that connect the ends of the frames 15b, 15d, 25b, 25d, 35b, and 35d are the same height.
Accordingly, the rotation is allowed only when both bolts 82 are properly tightened, and when the bolts 82 are not properly tightened, the rotation is impossible due to the contact of both bolts 82. From the above, the tightening reliability can be confirmed.

The connecting leg of the sports net of the above embodiment is the integrated leg 40 connected so as to sandwich the corner connecting part 36a of the sports net comprising the machine net 10, the tee net 20, and the ball-proof net 30. A steel bar is inserted into the upper end, one leg 41 of the integrated leg 40 around the corner connecting part 36a, and the protruding part 81 from the steel bar and the other leg 42 of the integrated leg 40. In addition, the protrusion 81 is welded from the steel bar.
Therefore, since the protrusion 81 made of a steel bar inserted around the corner connecting portion 36a and the integrated leg 40 and the upper end of the integrated leg 40 is integrated by welding, the mechanical strength of the integrated welding is high. Become. Moreover, by welding the upper end of the integral leg part 40, rainwater does not enter and it is difficult to rust.

As shown in FIGS. 7 and 8, the connection leg of the sports net of the above embodiment includes the engagement receiving portion 50 and the engagement fitting portion 60 on the frames 15b, 15d, 25b, 25d, 35b, and 35d. As shown in FIG. 8, the frame 15b, 15d, 25b, 25d, 35b, 35d is not limited to being provided with the engagement receiving portion 50 and the engagement fitting portion 60. Instead, the engagement receiving portion 50 or the engagement fitting portion 60 may be provided at the position of the illustrated bolt 82 of the corner connection portions 16a, 26a, 36a and the other corner connection portions 16b, 26b, 36b.
That is, the present invention can be implemented by providing the engagement receiving portion 50 or the engagement fitting portion 60 at the position of the bolt 82 shown in FIG. 8B with respect to the corner connection portion 26b and the corner connection portion 36a. Of course, it is desirable that the bolt 82 to be disposed at this time is a position rotated 90 degrees.

  The connection legs of the sports net according to the present embodiment configured as described above are connected to the ends of the vertical sides 15b, 15d, 25b, 25d, 35b, 35d of the sports net as the ball-proof net 30, and A corner connecting portion 16a, 26a, 36a that is curved at 90 degrees and that can be connected to the end of one of the frames 15a, 25a, 35a on the bottom of a sports net as a ball-proof net 30, and the bottom is the surface of the tee net 20 The leg portion 40 extends to the front side and the rear side, and the upper portion extends upward so as to sandwich the corner connection portion 26b, and is integrally connected to the corner connection portion 36a, and one of the vertical sides of the ball-proof net 30 The engagement receiving portion 50 disposed in the corner connection portion 36a and the one corner connection portion 26b on the vertical side of the tee net 20 as the adjacent sports net are engaged and engaged. Mates with join the club 50 can be expressed in a configuration in which the rotation of 180 degrees to engage the fitting portion 60 of the movable cylindrical hole.

  Also in this configuration, one of the ball-proof nets 30 can be erected only by the pair of integrated leg portions 40 shown in FIG. Engagement fitting part 50 arranged in corner connection part 36a of ball prevention net 30 and engagement fitting arranged in corner connection part 26b of tee net 20 with respect to the standing ball prevention net 30 By setting the portion 60 in the inserted state, one side of the tee net 20 is erected. Therefore, the tip disposed on the frame 25a on the other bottom side of the tee net 20 can be sequentially connected by the connection leg of the sports net of the present embodiment using the integral leg portion 40 shown in FIG.

  Further, in the present embodiment, as shown in FIG. 8B, the engagement receiving portion 50 disposed in the corner connection portion 36 a of the ball-proof net 30 and the corner connection portion 26 b of the tee net 20 are disposed. If the engagement fitting portion 60 is in the inserted state, the sports net including the machine net 10, the tee net 20, and the ball-proof net 30 can be continuously arranged and disposed at the corner connection portion 36d of the ball-proof net 30. If the engagement receiving portion 50 thus made and the engagement fitting portion 60 disposed in the corner connection portion 26b of the tee net 20 are separated, and the integrated leg portion 40 shown in FIG. The machine net 10, the tee net 20, and the ball-proof net 30 can be made independent as sports nets. Since it can become independent in this state, it can be stored independently.

  An engagement receiving portion 50 disposed on the frame 35 d of the ball-proof net 30, an engagement fitting portion 60 disposed on the frame 25 b of the tee net 20, and a corner connection portion 36 a of the ball-proof net 30. In the engagement receiving portion 50 and the engagement fitting portion 60 disposed in the corner connection portion 26b of the tee net 20, the load of the sports net including the machine net 10, the tee net 20, and the ball-proof net 30 is applied. Since it is added to the corner connecting portion 36d and the corner connecting portion 26b, the mechanical strength can be improved only by reinforcing the corner connecting portion 36d and the corner connecting portion 26b.

The sports net in the case of carrying out the present invention is used for connecting the machine net 10, the tee net 20, the ball-proof net 30, etc., and the target is the machine net 10, the tee net 20, and the ball-proof net 30. It is not specified and can be used for any net. In addition, the connection legs of the sports net according to the present embodiment can be arranged on one side of the machine net 10, the tee net 20, and the ball-proof net 30, or on both sides.
The sports net is free by providing a pair of the engagement receiving portion 50 and the engagement fitting portion 60 at the lower end of the vertical sides 15b, 15d, 25b, 25d, 35b, and 35d of the sports net. Multiple cards can be connected adjacent to each other. That is, without being limited to the machine net 10, the tee net 20, the ball-proof net 30, etc., the engagement receiving portion 50 and the lower end of the vertical sides 15b, 15d, 25b, 25d, 35b, 35d of the sports net A pair of engagement fitting portions 60 may be provided.

For example, in the embodiment of FIG. 1, if the target is provided with the sports net connecting leg of the present embodiment on the side of the tee net 20 of the machine net 10 and the ball-proof net 30, Is a connection in which the integral leg portion 40 is not provided. Further, only one of the sports nets of the present embodiment is used as the integrated leg 40 on the tee net 20 side of the machine net 10 and the ball-proof net 30, and the other is used as the connecting leg of the sports net of the embodiment. You can also
And in this Embodiment, although the pair of the engagement receiving part 50 and the engagement fitting part 60 is provided in the upper and lower ends of 15b, 15d, 25b, 25d, 35b, 35d, one side is a commercially available clamp. You can also

10 Machine net (Sport net)
11, 21, 31 Protective net 20 Tea net (Sport net)
22 collection net 30 ball-proof net (sport net)
15a, 15b, 15c, 15d Machine net frames 16a, 16b, 16c, 16d Machine net corner connections 25a, 25b, 25c, 25d Tea net frames 26a, 26b, 26c, 26d Tea net corner connections 35a, 35b, 35c, 35d Frames 36a, 36b, 36c, 36d of ball-proof nets Corner connection parts 50 of ball-proof nets Engagement receiving parts 51 Separating members 52 Supporting receiving members 60 Engaging fitting parts 61 Separating members 62 Fitting members 81 Protrusion 82 bolt

Claims (4)

A corner connecting portion that is curved at 90 degrees and that connects one frame end of the vertical side of the sports net and is freely connectable to one frame end of the bottom side of the sports net;
An integral leg connected integrally with the corner connecting portion, the lower portion extending to the front side and the back side with respect to the surface of the sports net, and the upper portion extending upward so as to sandwich the corner connecting portion;
An engagement receiving portion disposed on one frame of the vertical side of the sports net or the corner connecting portion;
An engagement fitting portion which is disposed on one frame on the vertical side of the adjacent sports net or the corner connection portion, engages with the engagement receiving portion, and is freely rotatable within 180 degrees;
The corner connecting portion and the integral leg portion that are integrally connected are not integrally connected, but are connected to one frame end of a vertical side of the adjacent sports net, and the adjacent sports net A connecting leg for a sports net, comprising: another corner connecting portion curved at 90 degrees that can be connected to one end of the frame on the bottom side.   Insert a part of a steel bar that can be bolted into the frame end of the vertical side and the frame end of the bottom side of the sports net and the frame end and the frame end of the vertical side of the adjacent sports net. A projecting portion made of the steel bar that is fixed and projecting the other portion is formed, the projecting portion is inserted into the corner connecting portion, and a bolt for screwing the projecting portion is disposed in the corner connecting portion. The connection leg of the sports net according to claim 1.   An engagement receiving portion disposed on one frame of the vertical side of the sports net, and an engagement portion disposed on one frame of the vertical side of the adjacent sports net and fitted to the engagement receiving portion. The fitting portion is welded together with a steel bar inserted and fixed to a frame end portion of a vertical side of the sports net or the adjacent sports net and the frame end portion thereof. Connecting legs of the described sports net.   The integrated leg portion connected so as to sandwich the corner connecting portion has a bar steel inserted at the upper end thereof, and the two leg portions of the integrated leg portion and the bar steel are integrally welded around the corner connecting portion. The connecting leg of the sports net according to any one of claims 1 to 3.

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