JPS594703Y2 - Basketball backboard extension mechanism - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a basketball backboard extension mechanism.

When the gymnasium is equipped with a basketball backboard, a board with a basket attached to the front, the support frame can be folded up when not in use so as not to interfere with other games, and the backboard should be mounted close to the wall. In many cases, the support frame is extended only when in use, and the backboard is mounted so that it faces a certain distance from the wall.

The present invention provides a backboard expansion/contraction mechanism configured so that such a so-called foldable backboard can be freely expanded/contracted by remote control from the ground.

In particular, the present invention is characterized in that it is constructed so that it can be operated fully automatically by button operation, making it suitable for installation and use in a gymnasium for the handicapped.

Hereinafter, the present invention will be described in detail based on embodiments shown in the drawings.

Figure 1 and subsequent figures show one embodiment of the present invention. In the figure, 1 is a backboard, and a basket 2
is fixed.

This backboard 1 is attached to a support frame 4 via metal fittings 3.
is fixed.

Along with the support frame 4, a guide tube 6 and a rod 7 are provided behind it.
A frame body 5 consisting of is arranged.

The rod 7 is fitted into the guide tube 6 so as to be movable up and down.

The upper end of the rod 7 is fixed to a horizontal frame 8 arranged horizontally, and a horizontal frame 9 that is horizontally suspended between this horizontal frame 8 and the lower part of the guide tube 6.
A hydraulic cylinder 10 is arranged between the two.

The hydraulic cylinder 10 has its head side fixed to the horizontal frame 9,
The tip side of the rod 11 is fixed to the horizontal frame 8.

Therefore, when the hydraulic cylinder 10 is actuated, the horizontal frame 9 rises, and the backboard 1 also rises via the rod 7 integrated therewith, so that the height position of the basket 2 can be freely adjusted.

The guide tube 6 has bearings 12, 12 on the upper and lower rear ends, and the guide tube 6 is supported by a support shaft 13 via these bearings 12.

Chain sprockets 14 are attached to the upper ends of the support shafts 13, respectively, and a chain 15 is stretched between these chain sprockets 14 in a crossed manner.

On the other hand, one ends of a pair of left and right support frames 15 are fixed to the support shaft 13.

As is clear from FIGS. 1 and 2, these support frames 15' are formed in the shape of a rectangular frame body, and the other end is pivoted to another set of support frames 17 and 17 via a hinge 16. freely connected.

The other end of the support frame 17.17 is fixed to a support shaft 21 rotatably supported by a bearing 20.20 of a support 19 fixed to the wall surface 18 side.

Further, chain sprockets 14 are fixed to these support shafts 21 and 21, respectively, in the same manner as the support shaft 13, and a chain 15 is stretched between the two in a state where the chain sprocket 15 intersects in the middle.

Each of these chains 15 rotates in the same phase when the support 15.17 rotates, as will be described later.
This is to enable synchronized rotation.

One end of an arm 22 is fixed to the upper end of the support shaft 21 of the left and right pair of wall-side support frames 17 and 17, respectively.
The other ends of 2 are the rods 24, 2 of the hydraulic cylinder 23, respectively.
It is connected to the tip of 5.

The hydraulic cylinder 23 is fixed on a bracket 26 whose cross section is formed into a substantially earthen shape, and casters 27 are attached to the lower end of the bracket 26, and the hydraulic cylinder 23 is placed on a flat part 28 formed on the wall surface 18. has been done.

A hydraulic unit 29 is fixed on the flat part 28 of the wall 18, and this hydraulic unit 29 is connected to the pipes 30 and 31.
One pipe 30 is connected to the hydraulic cylinder 10 on the backboard 1 side, and the other pipe 31 is connected to the hydraulic cylinder 23 on the wall surface 18 side.

Note that an operation panel 32 is provided on the wall surface 18.
This operation panel 32 is connected to the control box 33 of the hydraulic unit 29, and by pressing the operation button on the operation panel 32, the control box 33 is connected to the control box 33 of the hydraulic unit 29.
via which the hydraulic unit 29 can be controlled to actuate the hydraulic cylinder 10.23.

Although the operating panel 32 may be installed at any height, for example, if it is installed in a gymnasium for the handicapped, it is preferably placed at a height within reach of a handicapped person in a wheelchair.

By the way, as shown in Fig. 1, the left and right support frames 15 and 19
The base ends of the backboard 1 are supported by chains 34 and 35 stretched diagonally, and these chains 34 and 35 also serve as a stopper when the backboard 1 is fully extended.

Next, the operation of this embodiment configured as above will be explained.

When the user wants to practice basketball, the user can press the backboard 1 of the operation panel 32 located at a low position on the wall 18.
Press the button to extend the pipe 3 from the hydraulic unit 29.
Hydraulic oil is supplied to the hydraulic cylinder 23 through 1, and the rods 24 and 25 of the hydraulic cylinder 23 are retracted, and one of the support shafts 2
1 in the clockwise direction, and the other shaft 21 in the counterclockwise direction.
As a result, the support frames 17 and 17 on the wall surface 18 side, which have been in the folded state until now, are rotated to open outward, and in conjunction with this, the support frames on the backboard 1 side are rotated. 15', 15' open outwardly, as a result of which the backboard 1 is projected away from the wall 18, and when the chains 34, 35 are under tension, the support frame 15',
17 is a straight line, and the backboard 1 is set in a state extending from the wall surface 18 by a predetermined distance.

If you want to fold the backboard 1 toward the wall 18, press the folding button on the operation panel 32, and hydraulic oil is supplied to the hydraulic cylinders 23 in the direction of extending the rods 24, 25, and the support frames 17, 17 It is rotated inwardly via the arm 22, and in conjunction with this, the support frames 15', 15' are also rotated inwardly, the two support frames 15', 17 are folded, and the backboard 1 is folded toward the wall surface 18. It will be in a closed state.

By the way, during these operations, the chains 15 are stretched across each other between the sprockets L-14 and 14 fixed to the support shaft 13 and the support shaft 21, so that the rotation of the respective support shafts 13 and 21 is suspended. The movement is uniformly rotated with the same phase, and the support frames 15' and 17 are smoothly expanded and contracted.

On the other hand, if you want to adjust the height of the basket 2 by raising or lowering the backboard 1, press either button on the operation panel 32 for raising or lowering the backboard 1, and the hydraulic unit 2
Hydraulic oil is supplied from 9 to the hydraulic cylinder 10 via piping 30, the rod 11 expands and contracts, and the horizontal frame 8 moves up and down accordingly. moves up and down, allowing the height of the basket 2 to be set at a desired position.

In this way, we have adopted a structure with an operation panel that drives the hydraulic cylinder that advances and retreats the backboard to a position relatively close to the floor on the wall, so it is not necessary to use a ladder etc. at a high place on the wall as in the past. There is no need to climb up and turn the control bundle to move the backboard forward or backward, and it can be operated freely from the floor.For example, if a person with a disability wants to play basketball in a wheelchair, the operation is extremely easy and the height is low. Due to its location, it can be operated while in a wheelchair.

Further, in exactly the same way, the height of the basket can be freely adjusted by raising and lowering the backboard by operating the operation panel.

As is clear from the above explanation, according to the present invention, since a pressure cylinder is used as the drive source for moving the backboard forward and backward, even the operation panel can be mounted midway along the wall, close to the floor. By placing the backboard in place, the backboard can be moved forward and backward freely from the floor, making it possible for young children, the elderly, and disabled people to operate it freely. It has excellent effects such as being completely unnecessary.

[Brief explanation of drawings]

The drawings are for explaining one embodiment of the present invention; FIG. 1 is a plan view, FIG. 2 is a side view, and FIG. 3 is a front view showing the structure of the backboard installation. 1... Backboard, 2... Basquera), 4.15'. 17...Support frame, 5...Frame body, 6...
...Guide cylinder, 7, 11.24゜25 ... Rod, 8, 9 ... Horizontal frame, 10.23 ...
・Hydraulic cylinder, 13.21... Support shaft, 14.
...Chain sprocket, 15...Chain, 16...Hinge, 22...Arm,
29... Hydraulic unit, 30, 31...
・Piping, 32...Operation panel, 33...
·Control box.

Claims (1)

[Scope of utility model registration request] A pair of left and right support frames are rotatably connected via hinges, a backboard is attached to the side of the support frame located away from the wall, and the base end of the support frame on the side closer to the wall is connected via a spindle. In the basketball backboard extension mechanism, the backboard is rotatably supported on the wall side, and the backboard is extended and contracted by rotating the support shaft of the support frame on the wall side. One end of each arm is fixed to the upper end, and the other end of each arm is rotatably connected to the left and right rods of a hydraulic cylinder, and a hydraulic unit that supplies hydraulic oil to this hydraulic cylinder is connected to an operating unit installed at an appropriate location on the wall. A basketball backboard expansion/contraction mechanism configured to be controlled via a panel.