JP2743258B2 - Safety device for hanging basketball table - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gymnasium which is installed on the ceiling side of a gymnasium, and is hung on the ceiling side by a lifting rope when not in use and supported in a state of being folded in parallel. And a safety device for a suspended basketball table.

[0002]

2. Description of the Related Art In general, when the above-mentioned suspended basketball table is changed from an unused state to a used state or from a used state to a non-used state, an accident occurs in which a lifting cable is cut off. Sometimes. When such an accident occurs, there is a risk that the impact may cause the basketball table itself to fall and damage the floor of the gymnasium, or cause a personal injury when there are players and workers on the floor. Conventionally, various safety devices have been proposed to cope with such a danger, but none of them have been sufficiently satisfactory.

[0003]

SUMMARY OF THE INVENTION In view of the above-mentioned prior art, the present invention relates to a hanging basketball table, which is used when a lifting cable is suddenly cut during lifting or hanging.
An object of the present invention is to provide a safety device capable of receiving an impact generated thereby and preventing an accident from occurring.

[0004]

In order to solve the above-mentioned problems, the safety device of the present invention has a structure in which a base is fixedly suspended from a ceiling structure, and a goal plate is attached to one side of the base. A goal plate is attached to the lower end of the rod, and a reinforcement rod is pivotally attached to the other side, and a guide rod is connected to the mounting rod in parallel with the mounting rod, and the guide rod is attached to a tip end of the reinforcement rod. The lifting plate is lifted and suspended by winding and rewinding the lifting cable by attaching a sliding member that is slidable and fitted to the cable, and connecting one end of the lifting cable to the mounting rod. In the above-mentioned hanging basketball table, a shaft on which a stopper winding drum having a peripheral edge of one or both circular side plates formed in a tapered shape and a normal winding drum are slidably mounted on the case. Attach to the case and attach it to the circular side plate of the stopper winding cylinder. Then, a stopper device having a substantially V-shaped cross section is mounted, and a stopper device is suspended by a spring so that the shaft is normally urged and supported by a spring at a position where the side plate of the stopper winding cylinder does not interfere with the stopper member. While a stopper rope is connected to the lower part of the mounting cylinder and the mounting rod, one end of a forced winding rope is fixed to the normal winding cylinder, and the other end is disposed on the base or an indoor wall or other appropriate place. When the forcible take-up rope is loosened, the forcible take-up apparatus takes up the cable.If the stopper rope is tensioned, the shaft slides against the repulsion of the spring. The peripheral taper portion of the side wall of the stopper winding cylinder is pressed into the stopper member to stop the rotation of the stopper winding cylinder.

[0005]

According to the safety device of the present invention, when the lifting rope is cut while the basketball table is suspended, lifted, or in the lifting state, the stopper rope is tensioned, and its mounting shaft is opposed to the spring repulsion. Since the taper part of the side plate of the stopper winding cylinder is pressed against the stopper member to slide, the rotation of the stopper winding cylinder is stopped and the state is maintained. Can be prevented.

[0006]

Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a side view when a hanging basketball table is used, FIG. 2 is a front view thereof, FIG. 3 is a front view of a main part of a stopper device, FIG. 4 is a left side view of FIG. 3, and FIG. FIG. 6 is a right side view, and FIG. 6 is a cross-sectional view of the rope winding and rewinding device of the stopper device.

In the figure, 1 is a ceiling structure, and 2 is a base made of a rectangular parallelepiped frame, which is fixed to and suspended from the ceiling structure 1. 3 is a goal plate mounting rod having an upper end pivotally attached to one side (the right side in FIG. 1) of the base 2 and a goal plate 4 fixed to the lower end side.
5 is a reinforcing rod having its upper end pivotally attached to the other side of the base 2, 6 is a guide rod connected in parallel with the mounting rod 3, and 7 is fitted on the guide rod 6 and is attached to the lower end of the reinforcing rod 5. A sliding member 8 pivotally attached and sliding by the guide of the guide rod 6;
The lifting rope connected to a winding device 9 having one end fixed to the lower end and the other end provided on the base 2 or the like constitutes a suspended basketball table. Although the winding device 9 described above is provided on the base 2, the winding device 9 may be provided on the ceiling structure 1, or may be provided at another appropriate location.

The above-mentioned basketball table is used in a suspended state as shown in FIG. 1. When the hoisting rope 8 is wound up by the winding device 9 from this state, the goal plate mounting rod is used. 3 rotates counterclockwise, and at the same time
As the sliding member 7 pivotally attached to the lower end slides the guide rod 6, the ceiling structure 1
Folds parallel to Thus, if the lifting cable 8 is unwound from this folded state, the goal plate mounting rod 3 turns clockwise,
The use state shown in FIG. 1 is obtained.

However, if only the above configuration is used, when the hoisting rope 8 is cut when the hoisting rope 8 is hoisted or unwound, or when the basketball table is in use or in a folded state, the stand itself is damaged. It may fall or be damaged,
Especially when there is a person on the floor, there is a danger of causing a personal injury. Therefore, in the present invention, the following stopper device is attached to prevent an accident due to the cutting of the lifting cable 8 beforehand.

That is, in FIGS. 3 to 5, reference numeral 10 denotes a stopper device suspended from the ceiling structure 1 and attached thereto.
Roller cylinder 1 for stopper in which the peripheral edge of a is formed as a tapered edge 11b
1 and a normal winding drum 12 are mounted on a shaft 13,
Is installed in a long hole 14a provided in the case 14 to form a long hole 14a.
And the tapered edge 1 of the circular side plate 11a of the stopper winding cylinder 11 in the case bottom plate 14b.
1b, a V-shaped stopper member 14c is provided, and a spring 15 is disposed on a portion of the case 14 on both sides of the stopper winding cylinder 11, so that the shaft 13 is normally wound with the stopper winding. A position where the side plate 11a of the body 11 is not interfered by the stopper member 14c, in other words, the shaft 1
3 is configured to be biased and supported at a position where it is in contact with the upper part of the long hole 14a. In the drawing, 15a is a bearing member, 15b is a guide cylinder of the spring 15, 15c is a receiving cylinder of the guide cylinder 15b, and 15d is a screw for adjusting the repulsive force of the spring 15.

In the stopper device 10, one end of a stopper cable 16 having a higher strength than the lifting cable 8 is attached to the stopper winding drum 11, and the other end of the cable 16 is attached to the goal plate attaching rod 3.
To a rolled state when the basketball table is folded, and a rolled state when the basketball table is hung. On the other hand, one end of a forced take-up rope 17 having a lower strength than that of the lifting rope 8 is attached to the winding drum 12, and the other end of the rope 17 is connected to a forced take-up device 18 attached to the base 2 in the drawing. It is. In this forced winding device 18, two pulleys 18b are provided on the upper part of the cylindrical body 18a, and two pulleys 18d are mounted on the upper part of the weight 18c housed inside the cylindrical body 18a. , 18d to fix the end to the upper part of the cylindrical body 18a.

When the basketball table is suspended, the stopper rope 16 is in a state of being rewound from the winding cylinder 11, while the forcible winding rope 17 is in the winding cylinder 12.
In a state of being wound up. When the suspension state is shifted from the suspended state to the folded state and the lifting cable 8 is wound, the stopper cable 16
And the forcible winding cable 17 tends to be loosened, but the forcible winding cable 17 is pulled by the weight of the weight 18c and
b and 18d, the stopper rope 16 is wound on the stopper reel 11 which rotates integrally with the reel 12, and both ropes 16 and 17 are pulled without being loosened. When the basketball table shifts from the folded state to the suspended state, when the lifting cable 8 is rewound from the winding device 9, the stopper cable 16 is simultaneously moved to the stopper winding cylinder 11.
The rotation of the stopper winding drum 11 due to the unwinding also causes the winding drum 12 to rotate integrally therewith, and winds the forced winding rope 17 against the weight of the weight 18c. That is, when the stopper rope 16 is wound on the stopper winding cylinder 11, the forced winding rope 17 is unwound from the winding drum 12, and conversely, when the stopper rope 16 is unwound, the rope 17 is wound. It is taken.

In this embodiment, a weight is used for the forcibly winding device 18. However, a spring may be used instead of the weight, or another suitable winding device may be used. Alternatively, a rewind operation may be performed by computer control.

Next, the operation of the safety device of the present invention will be described. In the suspended state of the basketball table shown by the solid line in FIG. 1, the lifting rope 8 and the stopper rope 16 are in a state of being unwound from the winding device 9 and the stopper winding drum 11,
In addition, the forcible winding rope 17 is in a state of being wound around the winding drum 12. When shifting from this state to the folded state shown by the broken line, when the hoisting rope 8 is wound up by the winding device 9, the goal plate mounting rod 3 turns clockwise, and the rope 17 is moved to the forced winding device 18. Since the shaft 13 rotates by being wound up,
The stopper winding drum 11 is also rotated, and the stopper rope 16 is wound on the winding drum 11, and the winding device 9 is stopped when it is folded as shown by a broken line in the drawing. In this case, the rope 17 is unwound from the winding drum 12, while the stopper rope 16 is wound on the winding drum 11.

When the lifting cable 8 is cut during the above operation, the goal plate mounting rod 3 attempts to return to the original suspended state, but the stopper cable 16 reduces the load to the stopper. Since the shaft 13 is slid downward against the repelling force of the spring 15b, the tapered edge 11b of the side plate 11a of the winding cylinder 11 is pressed into the V-shaped stopper member 14c. Then, the rotation is stopped, the restoration of the goal plate mounting rod 3 is prevented, and the impact due to the cutting of the lifting cable 3 is received to prevent the occurrence of an accident.

The same operation as described above is performed when the basketball table shifts from the folded state to the suspended state, or when the lifting cable 3 is cut off in the folded state. Therefore, as described above, the rope 16 for the stopper is assumed to use a rope having higher strength than the lifting rope 3.

[0017]

As described above, the present invention is as described above. When the lifting rope is cut during the suspension operation, the lifting operation, or the lifting state of the basketball table and the stopper rope receives the load, Since the stopper cable is taut and slides the mounting shaft of the stopper winding cylinder against the repulsive force of the spring, the tapered portion of the peripheral edge of the side plate of the stopper winding cylinder press-fits to the stopper member, and the stopper Since the rotation of the bobbin is stopped and the state is maintained, an accident caused by the cutting of the lifting cable can be prevented beforehand. Therefore, the present invention is extremely useful as a safety device for a suspended basketball table.

[Brief description of the drawings]

FIG. 1 is a side view when a hanging basketball table is used.

FIG. 2 is a front view of a hanging basketball table.

FIG. 3 is a front view of a main part of the stopper device.

FIG. 4 is a left side view of FIG. 3;

FIG. 5 is a right side view of FIG. 3;

FIG. 6 is a cross-sectional view of a forcible winding device for a rope of a stopper device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Ceiling structure 2 Base 3 Goal plate attachment rod 4 Goal plate 5 Reinforcement rod 6 Guide rod 7 Sliding member 8 Lifting rope 9 Winding device 10 Stopper device 11 Stopper cylinder 11a Circular side plate of stopper cylinder 11b Taper Edge 12 Winding cylinder 13 Shaft 14 Case 14a Long hole 14b Case bottom plate 14c Stopper member 15 Spring 15a Bearing member 15b Spring guide tube 15c Guide tube receiving tube 15d Spring repulsion adjusting screw 16 Stopper cable 17 Forced winding Cable 18 Forced winding device for cable 17

Claims (3)

(57) [Claims] 1. A base is fixedly suspended from a ceiling structure, a goal plate mounting rod is pivotally mounted on one side of the base, a goal plate is mounted on a lower end thereof, and a reinforcing rod is pivotally mounted on the other side. The guide rod is connected to the mounting rod in parallel with the mounting rod, and a sliding member fitted to the guide rod and slidable is attached to the distal end of the reinforcing rod. In the hanging basketball table, which is connected to the mounting rod and lifts and rewinds the goal plate by winding and rewinding the lifting rope, a peripheral edge of one or both circular side plates is provided on a ceiling structure. A shaft having a tapered stopper winding cylinder and a normal winding cylinder attached thereto is slidably mounted on the case, and the case has a substantially V-shaped cross section facing the circular side plate of the stopper winding cylinder. A stopper member is attached and the shaft is normally A stopper device configured to urge and support the side wall of the stopper winding cylinder so that the side plate does not interfere with the stopper member, and connect the stopper rope to the lower part of the mounting rod and the mounting rod, When one end of a forced winding line is fixed to the winding drum and the other end is connected to a forced winding device provided on the base or an indoor wall or other appropriate position, the cable is loosened when the forced winding line is loosened. When the forcible winding device is wound up and the stopper rope is tensioned, the shaft slides against the repulsion of the spring, and the peripheral tapered portion of the side wall of the stopper winding cylinder is pressed into the stopper member, and A safety device for a hanging basketball table, wherein the rotation of a stopper winding cylinder is stopped. 2. The safety device according to claim 1, wherein the stopper rope is a rope having a greater strength than a lifting rope and a forced winding rope wound by a forced winding device. 3. A forced winding device for forcibly rewinding and winding a forced winding line wound by a normal winding drum, and operates by a weight and a pulley or a spring and a pulley, or by computer control to operate the forcing. 3. The safety device according to claim 1, wherein the safety device is a device for winding and rewinding a winding rope.