JPH0433870Y2 - - Google Patents

Description

[Detailed explanation of the idea] Industrial applications The present invention relates to a folding basket stand.

Conventional Technology A foldable basketball stand is a structure in which the basketball stand is foldable so that it can be stored in the ceiling of a warehouse or gymnasium when not in use, in order to make effective use of the space where basketball games are held. be. In addition, there are foldable types that can be moved to the warehouse using rollers, and types that are fixed to the ceiling. A movable folding basket stand has a base with rollers, an arm for supporting a backboard, and a column for supporting the arm, and either these are configured to be collapsible, or a bow-shaped arm for supporting a backboard is configured as a base. It is configured to be extendable and retractable from the base.

Problems that the invention aims to solve By the way, when using the conventional folding basketball stand mentioned above in a gymnasium, in order to make effective use of the inside of the gymnasium, it is necessary to use the entire floor surface of the hall, but it is difficult to use it for practice etc. While the floor of the hall is often divided into two parts and competition practice is held on each half, there are also many cases where the structure of the hall is such that spectator seats, so-called gear rallies, are installed extending above the periphery of the floor, and equipment such as basketball stands are installed. It has become more common for people to have trouble using it. In other words, when the floor of the building is divided into two and one side is used for baskets, there is not enough space to fix the basket stand at both ends of the field, or the gear rally becomes an obstacle that makes it difficult to unfold or fold the folding basket stand. It is inconvenient that it cannot be operated, or even if it is unfolded and moved, it hits the gear rally or wall and cannot be placed properly.

Furthermore, since the folding and unfolding operations are performed manually or by using hydraulic or pneumatic equipment as the driving means, incorporating the driving means increases the overall size and weight, making it difficult to move and requiring less storage space. Coupled with the increase in the number of foldable baskets, the folding basket stand does not meet its original purpose. Moreover, when hydraulic equipment is used, care must be taken to prevent oil leaks and maintenance, while controlling the height of the goal ring to maintain an accurate floor height for both mini-competitions and formal competitions becomes troublesome. There was a fear that this would lead to an increase in the cost of the basket stand.

Means for Solving the Problems The present invention was devised to solve the above problems, and the gist of the invention is as follows: A column is rotatably supported on a movable base. An arm forming a parallel link is rotatably supported at the upper end of the column, and a back board having a goal ring is rotatably supported at the free end of the arm, while one end of one belt is attached to the column. An endless belt that is attached to the upper end, the other end is wrapped around a wheel that is pivotally supported on an arm, and then extends through the pillar and into the base via the wheel that is pivotally supported on the upper end of the support, and is rotatable endlessly. At the same time, another belt is hung endlessly between a wheel that is pivotally supported at the base of the column and a wheel that is rotatably supported on the base, and the endless belt and the other belt are rotated respectively. It has an electric rotation drive source mounted on the base, and a switch that stops the drive of the electric rotation drive source of the other belt and stops the arm at either the official height or the mini height. This is a folding basket stand characterized by the fact that when stored, the support and arms can be laid down in parallel to the base.

Effects According to the above structure of the present invention, the column can be raised and lowered by driving the other belt through the driving means, so that the column can reciprocate between vertical and horizontal positions with respect to the base. By rotating the belt, the arm can reciprocate between the folded position parallel to the support and the floor level position of the goal ring in formal or mini-competitions. By controlling this movement, the It is possible to set the prop, the arm and the backboard horizontally in a folded state, and from the folded state, the prop can be erected vertically and then the arm can be expanded to the required height.

Embodiments The present invention will be explained below based on illustrated embodiments.

Fig. 1 is a side view of the entire unfolded state, Fig. 2 is a front view thereof, Fig. 3 is a side view of the folded state, and Fig. 4 is a schematic perspective view showing the general configuration of the drive unit that performs the folding and unfolding operation. .

In the figure, 1 is a base, 2 is a support, 3 is an arm, 4 is a backboard, and 5 is a goal ring.

The base 1 is movable by having a roller 1b on the bottom surface of a rectangular underframe 1a, and has an outrigger 1c and its handle 1d, and can stabilize the underframe 1a by raising the roller 1b from the floor 6. A bracket 1e is provided at one end of the base 1, and a column 2 is attached to the bracket 1e via a shaft 1f so as to be rotatable in the front-rear direction of the base 1. The support column 2 is approximately equal in length to the longitudinal direction of the base 1, and has slight protrusions at the front and rear of the base 1, as shown in FIG. 3, so that it can be mounted on the base 1. The support column 2 has a substantially V-shape, and an upper link 3a and a lower link 3b are connected as a left and right pair so that one end is rotatably connected by shafts 3c and 3d so that an arm 3 forms a parallel link at the bent end of the support column 2. has been done. The end of the lower link 3b is bent into a substantially V-shape, and a telescopic air suspension 7 is connected to the support 2 at the end. At the free ends of the arms 3, backboard supports 8 are connected to shafts 3e and 3, respectively.
It is pivotably supported at f. A backboard 4 is fixed to the backboard support 8, and a member 8a perpendicular to the backboard 4 is attached to the arm 3 side of the backboard support 8. A goal ring 5 is also attached to the back board 4 orthogonally thereto. The goal ring 5 has a base 5a fixed to the backboard 4 and a base 5a.
a movable part 5c connected to via a hinge 5b;
It consists of a movable part 5c and a rod 5d connected between stays 3g connecting the ends of the lower link 3b. Both ends of the rod 5d are rotatably connected to the movable portion 5c and the stay 3g, respectively.

Next, as shown in FIGS. 1 and 4, the base 1
A driving means 9 for tilting the support column 2 from a vertical position to a horizontal position and a driving means 90 for folding the arm 3 are provided.
are provided respectively. The driving means 9 fixes the shaft 1f to the support column 2, and fixes the sprocket 9a to the shaft 1f, and the sprocket 9a and the sprocket 9a.
A chain belt 10 is connected between the sprocket 9b which is fixedly supported on the shaft 1h supported on the base 1.
A chain belt 12 is wound around endlessly between a sprocket 9c which is pivotally fixed to a shaft rod 1h and an output sprocket 9d of an electric motor 11 which is fixed to a base 1. Drive means 90
is the output shaft 1 of the electric motor 13 fixed to the base 1
A pair of sprockets 10a and 10b are pivotally fixed to the shaft 1h, and a pair of sprockets 10c and 10d are loosely fitted and rotatably supported on the shaft 1h, and an endless chain belt 14 is hung between the sprockets 10a and 10c. Then, one end of the chain belt 16 with an end is connected to a part of the chain belt 14 via the connecting tool 15. The other end of the chain belt 16 extends through the sprockets 10b and 10d within the column 2 toward the arm 3, and wraps around a sprocket 10g that is pivotally supported on the arm 3 via idler sprockets 10e and 10f as shown in FIG. It is rotated again until it reaches the end of the support column 2, where it is fixed with a fastener 17.

Note that a switch mechanism 18 for controlling the drive means 90 is provided on the base 1. This switch mechanism 18 has a sprocket 18a pivotally fixed to the output shaft 13a of the electric motor 13.
8a and a sprocket 18d which is rotatably supported on the base 1 via brackets 18b, 18b, and a sprocket 18d which is pivotally fixed to the end of the screw shaft 18c, and is moved to the screw shaft 18c. An actuating piece 21 that is movably screwed together with the block 20 and comes into contact with the block 20.
Three limit switches 21, 22, 23 having a, 22a, 23a are fixed on a base 1. The limit switch 21 is activated when the arm 3 is folded parallel to the support 2 (see imaginary line diagram in Figure 1).
The limit switch 22 is a switch that stops the drive of the electric motor 13 to stop the drive of the electric motor 13 in order to keep the goal ring 5 stationary at the height for mini-competition (see the imaginary line in FIG. 1). is goal ring 5
This is a switch that stops the ball at the official competition height (see the solid line in Figure 1). Therefore, since the inclination angle of the arm 3 is different between the mini-competition and the official competition, separate operating switches are provided to set the angle.
On the other hand, the drive means 9 can be controlled by two controls that allow the support 2 to rotate from a vertical position to a horizontal position about the axis 1f. A limit switch 25 (Fig. 2) is installed at the rotating base of the support 2, and a limit switch 25 (first
) is installed on the cradle 1g of the base 1, and when these limit switches 24 and 25 are activated, the electric motor 1
1 stops driving. Operation switches for this drive means 9 are also provided separately. Note that the operation of unfolding the support column 2 and arm 3 from the folded state is performed by first operating the driving means 9, and then
The first sequence in which the driving means 90 operates and the operation of folding from the unfolded state have electrical circuits in which the driving means 90 operates first and the second sequence in which the rear driving means 9 operates, respectively. .

Next, to explain the operation of the above embodiment, in order to change from the state shown by the solid line in FIG. 1 to the folded state shown in FIG. 3, when the operation switch for the folding operation is pressed, the second sequence control drive means 9,
90 is driven. First, the drive means 90 operates and the electric motor 13 is started. electric motor 13
sprockets 10a, 1 through the output shaft 13a of
When 0b rotates clockwise, the chain belt 14 rotates, and the chain belt 16 is fed out via the connector 15 to the support 2 side via the sprockets 10b and 10d, and is connected to the support 2 and the arm 3 via the sprockets 10e and 10f of the support 2. The chain belt 16 between them stretches, and the distance between the sprockets 10f and 10g increases greatly. That is, the arm 3 is connected to the shafts 3c, 3
It tilts downward due to its own weight around d. At this time, the rod 7b of the air suspension 7 extends loosely from the cylinder 7a, stops the rapid movement of the arm 3, and gradually positions it parallel to the support column 2. When the arm 3 becomes parallel to the column 2, the backboard support 8 becomes parallel to the arm 3 by the links 3a and 3b, and the goal ring 5 becomes parallel to the hinge 5b by the displacement of the rod 5d connecting the arm 3 and the movable part 5c. They are each folded parallel to the backboard 4 with the center at the center. When the arm 3, backboard support 8 and goal ring 5 are folded in this way, the switch mechanism 18 is interlocked and the screw 18 is folded.
c rotates, the moving block 20 operates the limit switch 21 to turn off the electric motor 13, and
Next, power is supplied to the electric motor 11. Then, the electric motor 11 starts and the sprockets 9d, 9
When c is the chain belt 12 and the sprocket 9b rotates clockwise around the shaft 1h, the strut 2 tilts to the right around the shaft 1f supported by the bracket 1e via the chain belt 10, and moves horizontally parallel to the base 1. The electric motor 11 is powered off by operating the switch 25 on the pedestal 1g, and the entire body is compactly mounted on the pedestal 1 as shown in FIG. It fits.

Next, in order to change from the folded state shown in FIG. 3 to the unfolded state shown in FIG. , 90 are driven. In this case, the operation is opposite to that described above, in which the driving means 9 is operated first, and then the driving means 90 is operated, and the movements of each part are also in the completely opposite order to the above-mentioned operation. Therefore, the operation is switched from the drive means 90 to the drive means 9 by operating the switch 24 at the pivot base of the support 2 so that the support 2 is perpendicular to the base 1, and by operating the switch 24 at the pivot base of the support 2. The angle of inclination is the same for a mini operation switch, in which the block 20 of the switch mechanism 18 operates the limit switch 22 to stop the arm 3 in the state shown by the phantom line in FIG. For example, block 20 of switch mechanism 18 operates limit switch 23 to stop arm 3 in the state shown in solid lines in FIG. Further, since the arm 3 constitutes a parallel link, the backboard 4 and the backboard support 8 move upward in a parallel position, and the goal ring 5 connects to the backboard 4 via the rod 5d.
It gradually rotates from a position parallel to the backboard 4 to be perpendicular to the backboard 4, and is located on a horizontal plane completely perpendicular to the backboard 4 and at a constant height with respect to the floor 6 at the height for mini-competition.

Effects of the invention According to the invention explained above, the goal ring, back board, and support can be folded on the base parallel to each other, making it possible to store them compactly, so the storage space is small, and When unfolding from the folded state, the column first becomes vertical, and the rear arm and backboard rotate upward from the front of the column, while when folding from the unfolded condition, they can operate in the opposite direction, making it ideal for gymnasiums. Even if it is fixed in a gear rally or close to a wall, there is no problem in folding or unfolding, and it can be used and stored according to the space of the gymnasium. Moreover,
The folding and unfolding operations are performed by a drive such as a chain belt, and maintenance is easy without using means such as hydraulic equipment, and the weight is light and the structure is compact, making it easy to transport. Furthermore, since the arms are constructed with parallel links, the backboard can always be rotated in a vertical position and the goal ring can be raised and lowered, which has the effect of further improving compact folding.

[Brief explanation of drawings]

FIG. 1 is a side view, FIG. 2 is a front view, FIG. 3 is a side view in a folded state, and FIG. 4 is a perspective view showing an outline of a drive unit that performs folding and unfolding operations. 1... Base, 2... Support, 3... Arm, 4...
... Backboard, 5... Goal ring, 8... Backboard support, 9, 90... Drive means, 9a
~9d, 10a~10g, 18a, 18d... Sprocket, 10, 12, 14, 16, 19...
Chain belt, 15... Connector, 17... Fastener, 20... Moving block, 21-25... Limit switch.

Claims (1)

[Scope of utility model registration request] A support is rotatably supported on a movable base, an arm forming a parallel link is rotatably supported at the upper end of the support, and a back board having a goal ring is provided at the free end of the arm. While the belt is rotatably supported, one end of the belt is fixed to the upper end of the column, and the other end is hung around a wheel that is pivoted to the arm, and then the column is connected again through the wheel that is pivoted to the upper end of the column. It extends into the base and is attached to a part of the endless belt that is rotatable endlessly, and there is an endless belt between the wheel supported at the base of the column and the wheel supported rotatably on the base. An electric rotation drive source for rotating the endless belt and the other belts is mounted on the base, and the arm is used for official use by stopping the drive of the electric rotation drive source for the other belt. This folding basket stand is characterized by having a switch for stopping the basket at any of the heights for a mini basket, and allowing the support and arm to be sequentially lowered parallel to the base when stored.