Basketball stand

Abstract

The invention provides a basketball stand capable of easily adjusting the height of a basketball hoop. A basketball stand (1) is provided with: a first pillar (3) for supporting a first support arm (5) and a second support arm (6); a second pillar (4) that supports the second support arm (6); a first support arm (5) which has a backboard (71) attached to the front end thereof and which is rotatably connected to the second support arm (6) at a predetermined position relative to each other; a second support arm (6) axially supported at a predetermined position on the second support column (4); and a locking means for detachably locking the rear ends of the first support arm (5) and the second support arm (6) at a prescribed position above or below the first support column (3).

Description

Technical Field

[0001] The invention relates to a basketball stand capable of adjusting the height of a basketball frame. Background Art

[0002] In general basketball games, the height of the basketball hoop is set to 3050mm. On the other hand, in mini basketballs mainly for elementary school students and below, the height of the basketball hoop is set to 2600mm.

[0003] In this regard, in prior art documents 1 to 3, devices capable of adjusting the height of a basketball hoop are proposed. Prior art literature Patent Literature

[0004] Patent Document 1: Japanese Patent Application Publication No. 2004-180876 Patent Document 2: Japanese Patent Application Publication No. 2006-386 Patent Document 3: Japanese Patent Publication No. 03-503850 Summary of the invention Problems to be solved by the invention

[0005] However, although the devices described in the above patent documents are all provided with a height adjustment mechanism located near the basketball hoop, since the basketball hoop is originally located at a relatively high position, the adjustment work is not easy.

[0006] Therefore, one of the objects of the present invention is to provide a basketball stand that can conveniently adjust the height of the basketball frame. Means of solving problems

[0007] In order to achieve the above-mentioned purpose, the basketball stand of the present invention comprises: a first pillar, supporting a first supporting arm and a second supporting arm; a second pillar, supporting the second supporting arm; the first supporting arm, having a backboard installed at the front end portion, and being rotatably connected to the second supporting arm relative to each other at a specified position; the second supporting arm, being axially supported at a specified position of the second pillar; and a locking unit, which detachably locks the rear ends of the first supporting arm and the second supporting arm at a specified position above or below the first pillar.

[0008] The second supporting arm may be configured such that a length between a shaft supporting portion supported by the second support shaft and a locking portion locked to the first support is greater than a straight-line distance between the shaft supporting portion and the locking portion, and the second supporting arm may be freely bent between the shaft supporting portion and the locking portion.

[0009] There may further be a restriction portion provided on the first support arm and contacting the second support column from the front to restrict movement of the first support arm toward the rear end side.

[0010] There may be further provided a counterweight which is provided at a rear end side of the second support column and which hangs down in a vertically downward direction from the second support arm which is rotatably mounted.

[0011] A grip portion may also be provided, and the grip portion is arranged at the rear end portion of the second supporting arm. Effects of the Invention

[0012] According to the basketball stand of the present invention, the height of the basketball frame can be conveniently adjusted to a height suitable for general competitions or a height suitable for mini basketball. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a perspective view showing the appearance of a basketball stand according to an embodiment of the present invention, showing a state of general competition specifications. Figure 2 This is a side view of a basketball stand according to an embodiment of the present invention, showing a state of general game specifications. Figure 3 A top view of a basketball stand according to an embodiment of the present invention is shown. Figure 4 It is a partially enlarged view of a basketball stand according to an embodiment of the present invention. Figure 5 This is a perspective view showing the appearance of a basketball stand according to an embodiment of the present invention, showing a state of a mini basketball specification. Figure 6 This is a side view of a basketball stand according to an embodiment of the present invention, showing a state of a mini basketball stand. Figure 7 To illustrate a side view of the basketball stand according to the embodiment of the present invention, an example of the state when switching between the general game specification and the mini basketball specification is shown. Figure 8 To illustrate a side view of the basketball stand according to the embodiment of the present invention, an example of the state when switching between the general game specification and the mini basketball specification is shown. DETAILED DESCRIPTION

[0014] The following is a description of an embodiment of the basketball stand 1 of the present invention in conjunction with the accompanying drawings. The basketball stand 1 of this embodiment has a mechanism for adjusting the height of the basketball frame 72 to a height suitable for general game specifications and mini basketball specifications. Through this mechanism, the height of the basketball frame 72 can be adjusted to a height of 3050 mm specified as a general game specification, or a height of 2600 mm specified as a mini basketball specification. However, the basketball stand 1 of this embodiment is characterized in that it can be adjusted to different heights, and through appropriate design, it can be configured to be adjustable to a height other than the above-mentioned specified heights. In the following description, the form of the basketball stand 1 in which the height of the basketball frame 72 can be adjusted to a height corresponding to general game specifications is referred to as the "first form", and the form of the basketball stand 1 in which the height of the basketball frame 72 can be adjusted to a height corresponding to mini basketball specifications is referred to as the "second form".

[0015] Structure Figures 1 to 6 The basketball stand 1 of this embodiment is shown, wherein: Figures 1 to 4 The first form is shown, Figure 5 and Figure 6 In the following description, the side where the basketball hoop 72 is provided is referred to as the front, and the opposite side thereof is referred to as the rear. Also, the direction perpendicular to the front-rear direction in the horizontal direction is referred to as the left-right direction. The basketball stand 1 mainly comprises a base portion 2 having a rectangular frame, a pair of first pillars 3 and a pair of second pillars 4 erected on the base portion 2 , and a first supporting arm 5 and a pair of second supporting arms 6 linked thereto.

[0016] Furthermore, the base 2, first support 3, second support 4, first support arm 5, second support arm 6 and other components are made by appropriately processing metal materials, for example, and have sufficient rigidity to withstand physical external forces applied at least during competition. In addition, a backboard 71 is installed at the front end of the first supporting arm 5. The backboard 71 is in the shape of a rectangular plate, and a ring-shaped basketball frame 72 is provided at the front position of the backboard 71, and a net 73 is held in the basketball frame 72.

[0017] ●Abutment 2 The base part 2 is a part for stably setting the basketball stand 1 on the setting surface. In the present embodiment, the basketball stand 1 is rectangular, but its shape is not particularly limited as long as the basketball stand 1 can be stably set. In the present embodiment, wheels 21 are provided at the four corners of the rectangular shape on the bottom side of the base part 2, so that the basketball stand 1 can be moved to a desired position. The wheels 21 may also be provided with a limiting unit, such as a brake or a locking mechanism, for limiting the rotation when the basketball stand 1 is set at a specified position. Regardless of the present embodiment, the first support 3 and the second support 4 may be directly fixed to the installation surface without providing the base portion 2. In this case, the basketball stand 1 cannot be moved, but there is no problem in adjusting the height of the basketball frame 72.

[0018] ●First Pillar 3 A pair of first pillars 3 are erected at the rear end of the base 2 and approximately at the center in the width direction. The pair of first pillars 3 are both rod-shaped members having a length in the vertical direction, and are prism-shaped in this embodiment. The pair of first pillars 3 are arranged side by side at a certain distance in the left-right direction.

[0019] A pair of locking holes 3a and 3b are respectively provided on the outer sides above the pair of first pillars 3. The locking holes 3a and 3b are provided separately up and down and penetrate in the width direction. The locking hole 3a is provided at the top, and the locking hole 3b is provided at the bottom. The locking holes 3a respectively provided at the top of the pair of first pillars 3 are provided at positions corresponding to each other, so that the rod-shaped locking pin 81 is inserted through the pair of locking holes 3a arranged in a straight line. Similarly, the locking holes 3b respectively provided at the bottom of the pair of first pillars 3 are also provided at positions corresponding to each other, so that the rod-shaped locking pin 81 is inserted through the locking holes 3b arranged in a straight line. Figure 1 The locking pin 81 is shown to be inserted into the locking hole 3a. Figure 5 The state where the locking pin 81 is inserted into the locking hole 3b is shown. The locking pin 81, together with the locking hole 3a of the first support column 3, the locking hole 52a of the first support arm 5, and the locking hole 63a of the second support arm 6 described later, constitutes a first locking unit for locking the first support arm 5 and the second support arm 6 to the first support column 3. In addition, the locking pin 81, together with the locking hole 3b of the first support column 3, the locking hole 52a of the first support arm 5, and the locking hole 63a of the second support arm 6 described later, constitutes a second locking unit for locking the first support arm 5 and the second support arm 6 to the first support column 3.

[0020] A rod-shaped hanger member 31 having a length in the width direction and connecting the pair of first pillars 3 is provided across the upper ends of the pair of first pillars 3. This prevents the first support arm 5 described later from slipping upward between the pair of first pillars 3. Furthermore, a rod-shaped restricting member 32 extending outward in the width direction is provided below the locking holes 3b of the pair of first pillars 3. This prevents the second support arm 6 from falling onto the installation surface during the switching operation of the form. Furthermore, a rod-shaped hanger member 33 is provided below the locking holes 3b of the pair of first pillars 3 to connect the pair of first pillars 3. This prevents the first support arm 5 described later from slipping downward between the pair of first pillars 3.

[0021] Second Pillar 4 A pair of second pillars 4 are erected at the front end of the base portion 2 and approximately at the center in the width direction. Like the first pillars 3, the pair of second pillars 4 are rod-shaped members having a length in the vertical direction, and in this embodiment, are prism-shaped. On the other hand, in this embodiment, the second pillars 4 are longer than the first pillars 3, and the upper ends of the second pillars 4 are located at a higher position than the upper ends of the first pillars 3.

[0022] Support shafts 41 extending outward in the width direction are provided above the pair of second support pillars 4. The support shafts 41 are inserted through through holes 61a provided in the second support arm 6 described later, and axially support the second support arm 6. In this embodiment, a pair of second pillars 4 axially support the second supporting arm 6 via a supporting shaft 41. Other structures may also be used as long as the second supporting arm 6 is rotatably supported at the position where the supporting shaft 41 is set. For example, corresponding recessed portions or convex portions may be respectively provided on the second supporting arm 6 and the second pillar 4 so that the second supporting arm 6 is pivotally supported by the second pillar 4 at this position.

[0023] As described later, the first support arm 5 passes through a pair of second pillars 4, and a rod-shaped hanger member 42 is provided between the pair of second pillars 4 as a limiting member for limiting the first support arm 5 from descending beyond a certain height. When the first support arm 5 is fixed at a predetermined position above or below, the hanger member 42 is provided at a position corresponding to the position of the first support arm 5 when it is fixed at the bottom, that is, in the second form, and plays a role in positioning. In addition, in this embodiment, as shown in the figure, a reinforcing member 43 is provided on the second support 4. The reinforcing member 43 is a rod-shaped member, obliquely arranged across the second support 4 and the base 2 at the approximate center of each, and supports the second support 4 against the external force acting on the basketball stand 1 from the front during a basketball game.

[0024] ●First support arm 5 The first support arm 5 is a rod-shaped component with a backboard 71 mounted on the front end, and in the present embodiment, it is a prism. The first support arm 5 has a length in the front-back direction. In addition, the width of the first support arm 5 is slightly smaller than the distance between the pair of first pillars 3 and the distance between the pair of second pillars 4, and the first support arm 5 is set to pass between the pair of first pillars 3 and the pair of second pillars 4. In addition, as described later, the first support arm 5 is designed to be fixed at a predetermined position above or below, and depending on which position it is fixed, the height of the backboard 71 mounted on the front end of the first support arm 5 can be adjusted, and the height of the basketball hoop 72 mounted on the backboard 71 can be adjusted.

[0025] The first supporting arm 5 is composed of a front arm portion 51 extending substantially horizontally forward, and a rear arm portion 52 bent from the rear end of the front arm portion 51 and extending rearward and obliquely downward.

[0026] The forearm portion 51 passes between the pair of second pillars 4 and extends forward. The back of the backboard 71 is fixed to the front end of the forearm portion 51, whereby the backboard 71 is supported by the first support arm 5. The fixing method is not particularly limited, and may be screw fixing, welding, etc. In addition, the backboard 71 is attached to the forearm portion 51 in such a manner that the front or back of the backboard 71 is at right angles to the horizontal plane.

[0027] A support shaft 511 extending outward in the width direction is provided substantially in the middle of the front arm portion 51. The support shaft 511 is inserted into a through hole 61b provided in the second support arm 6 described later, and axially supports the second support arm 6. In the present embodiment, the first supporting arm 5 axially supports the second supporting arm 6 via the supporting shaft 511. Other structures may also be used as long as the first supporting arm 5 and the second supporting arm 6 are rotatably connected at the position where the supporting shaft 511 is provided. For example, corresponding recessed portions or convex portions may be provided on the first supporting arm 5 and the second supporting arm 6, respectively, and at this position, the first supporting arm 5 and the second supporting arm 6 are rotatably connected relative to each other.

[0028] like Figure 4 As shown, a pair of tongue-shaped abutting pieces 512 are provided at the rear part of the forearm 51 and at the part where the forearm 51 intersects with the second pillar 4. The pair of abutting pieces 512 protrude outward in the width direction of the forearm 51. When the pair of abutting pieces 512 abut against the pair of second pillars 4, the first support arm 5 is restricted from moving backward. From this point of view, it can be said that the abutting piece 512 constitutes a restriction portion that restricts the first support arm 5 from moving backward. In addition, when the first support arm 5 and the second support arm 6 are fixed to the first pillar 3, the abutting piece 512 strongly abuts against the second pillar 4, thereby being pulled backward, and as a result, the forearm 51 is also restricted from falling.

[0029] The rear arm portion 52 passes between the pair of first pillars 3 , and a rear end portion thereof extends rearward beyond the pair of first pillars 3 . A locking hole is provided at the position where the rear arm portion 52 intersects with the pair of first pillars 3 and passes through in the width direction. Figure 1 or Figure 5 The locking hole 52a is provided on the axis of the locking pin 81 and is referred to as the "locking hole 52a" hereinafter for the convenience of description. The locking hole 52a has the same diameter as the locking holes 3a and 3b of the first pillar 3. By making the locking hole 3a arranged above the first pillar 3 correspond to the locking hole 52a of the rear arm 52, or making the locking hole 3a arranged below the first pillar 3 correspond to the locking hole 52a of the rear arm 52, the locking pin 81 is inserted through it, thereby fixing the rear arm 52 to the first pillar 3.

[0030] The rear end of the rear arm 52 is bent downward, and a pair of rod-shaped members 521 are provided on the outside of the rear end in the width direction. The pair of rod-shaped members 521 constitute a gripping portion for gripping when adjusting the first support arm 5 to a higher or lower position, and also constitute a limiting portion that limits the rear end of the first support arm 5 from slipping forward from between the pair of first pillars 3.

[0031] ●Second supporting arm 6 The second support arm 6 is a rod-shaped member provided in pairs on the outer sides in the width direction of the pair of first support pillars 3 and the pair of second support pillars 4, and in the present embodiment, is a prism-shaped member. The second support arm 6 has a length in the front-rear direction.

[0032] The pair of second support arms 6 each includes a front arm portion 61 extending substantially horizontally forward, a middle arm portion 62 bent from the rear end of the front arm portion 61 and extending rearward and obliquely downward, and a rear arm portion 63 connected to the rear end of the middle arm portion 62 via a connecting member 60 and extending rearward.

[0033] A through hole 61b extending in the width direction is provided at the front end of the front arm portion 61, and the support shaft 511 provided in the first support arm 5 is inserted through the through hole 61b. Thus, the first support arm 5 and the second support arm 6 are rotatably connected to each other.

[0034] A through hole 61a extending in the width direction is provided at the rear end of the front arm portion 61. The support shaft 41 of the second support column 4 is inserted through the through hole 61a, so that the second support arm 6 is axially supported.

[0035] A rod-shaped gripping portion 621 extending in the width direction is provided outside the rear end portion of the middle arm portion 62. When switching the form of the basketball stand 1, the operator grips the gripping portion 621 and lifts the second support arm 6 upward or presses it downward.

[0036] The rear end of the middle arm portion 62 is connected to the rear arm portion 63 via a thin plate-shaped connecting member 60. One end of the connecting member 60 is rotatably connected to the rear end of the middle arm portion 62, and the other end is rotatably connected to the front end of the rear arm portion 63. Thus, the middle arm portion 62 and the rear arm portion 63 can rotate with the connecting member 60 as a fulcrum. In addition, regardless of the present embodiment, the middle arm portion 62 and the rear arm portion 63 may be rotatably connected relative to each other without using the connecting member 60.

[0037] The upper end of the counterweight 82 suspended downward in the vertical direction is rotatably connected to the front end of the rear arm 63. Therefore, even if the height of the second support arm 6 changes due to the switching of the form and the angle between the second support arm 6 and the horizontal plane changes, the counterweight 82 will always be suspended in the vertical direction due to its own weight and be in a stable state. In the present embodiment, the counterweight 82 is composed of a pair of plate-shaped retaining members extending downward from a pair of second support arms 6, and a cylindrical weight disposed in a manner spanning between the pair of retaining members. For the weight, the prescribed number can be set as the upper limit and any number can be disposed, thereby adjusting the weight of the counterweight 82. As a result, the weight of the counterweight 82 can be adjusted according to the backboard 71 and basketball hoop 72 (generally, the basketball hoop 72 is roughly divided into two types, and the backboard 71 is roughly divided into three types, and the weight of each type is different), thereby stabilizing the basketball stand 1. Regardless of the present embodiment, a weight can be provided on the base portion 2, the first support 3, the second support 4, or the like to achieve weight balance.

[0038] The rear end of the rear arm portion 63 is bent upward, and a pair of rod-shaped members 631 are provided on the outside of the rear end portion in the width direction. The pair of rod-shaped members 631 constitute a gripping portion that the operator holds when moving the second support arm 6 to a higher position or a lower position. In addition, a connecting member 632 for connecting the pair of second support arms 6 is provided between the rear ends of the pair of second support arms 6. The connecting member 632 can be used to restrict the second support arm 6 from opening outward in the width direction or the rear end of the second support arm 6 from moving forward beyond the first support column 3. Furthermore, the rear arm portion 63 is provided with a locking hole 63a extending in the width direction at a position intersecting with the first pillar 3. The locking hole 63a has the same diameter as the locking holes 3a and 3b of the first pillar 3, and the locking hole 3a provided above the first pillar 3 corresponds to the locking hole 63a of the rear arm portion 63, or the locking hole 3b provided below the first pillar 3 corresponds to the locking hole 63b of the rear arm portion 63, and the locking pin 81 is inserted therethrough, so that the rear arm portion 63 can be fixed to the first pillar 3.

[0039] When the middle arm portion 62 and the rear arm portion 63 of the second support arm 6 are straightened, the length between the shaft support portion axially supported by the second support column 4 and the locking portion locked to the first support column 3 is greater than the straight line distance between the shaft support portion and the locking portion. In this regard, the second support arm 6 is configured so that the portion where the connecting member 60 provided between the shaft support portion and the locking portion is connected to the middle arm portion 62 or the rear arm portion 63 can be freely bent. Therefore, in the first form, the second support arm 6 is bent so that the middle portion where the middle arm portion 62 and the rear arm portion 63 are connected by the connecting member 60 is lifted upward, while in the second form, the middle portion is bent and hangs downward to support the first support arm 5.

[0040] In the basketball stand 1 having such a structure, the front arm portion 51 of the first support arm 5 with the backboard 71 mounted at the front end extends forward sufficiently longer than the second support column 4 provided at the front end of the base portion 2. This allows players to play the game safely and unhindered under the basketball hoop 72. Regardless of the present embodiment, the top of the base portion 2 may be covered by a cover, thereby preventing players or operators from accidentally touching the first support arm 5 or the second support column 4 and getting injured, while also improving the aesthetics.

[0041] ●General competition specifications (first form) For the basketball stand 1 mentioned above, Figure 1 , Figure 2 The first form is shown, that is, the structure when the basketball stand 1 is used under general competition specifications. In the first form, the locking hole 3a provided on the upper side of the first support column 3, the locking hole 52a of the first support arm 5, and the locking hole 63a of the second support arm 6 are arranged in a straight line, and the locking pin 81 is inserted therethrough. In addition, the first support arm 5 is located above the second support arm 6 and is supported upward by the second support arm 6. At this time, the position of the first support arm 5 is higher than that in the second form, and the height of the basketball hoop 72 is set to the height specified for general competitions.

[0042] ●Mini basketball specifications (second form) on the other hand, Figure 5 and Figure 6 The second form is shown, that is, the structure of using the basketball stand 1 in a mini basketball specification. In the second form, the locking pin 81 is inserted through the locking hole 3b provided below the first support column 3, the locking hole 52a of the first support arm 5, and the locking hole 63a of the second support arm 6 while being arranged in a straight line. In addition, the first support arm 5 is located below the second support arm 6 and is supported by the second support arm 6 so as to be suspended from above. At this time, the position of the first support arm 5 is lower than that in the first form, and the height of the basketball frame 72 is set to the height specified for the mini basketball.

[0043] ●Height adjustment process The process of switching the shape of the basketball stand 1 between the first shape and the second shape and adjusting the height of the basketball frame 72 will be described. First, when switching from the first form to the second form, Figure 1Starting from the state shown in FIG. 1 , the operator pulls out the locking pin 81 and releases the connection between the rear arm portion 52 of the first support arm 5 and the first support column 3, and the connection between the rear arm portion 63 of the second support arm 6 and the first support column 3. At this time, the operator appropriately grasps the rod-shaped member 521 of the first support arm 5, the rod-shaped member 631 of the second support arm 6, and the grip portion 621. Then, as shown in FIG. Figure 7 As shown, when the rod-shaped member 631 is tilted backward to lift the front end of the rear arm 63, the rear end of the middle arm 62 connected to the rear arm 63 is lifted through the connecting member 60, and the second support arm 6 is lifted upward. At the same time, the rod-shaped member 521 is pressed down to lower the rear arm 52 and the first support arm 5.

[0044] If the first support arm 5 and the second support arm 6 are moved in this way, Figure 8 As shown, the positions of the first support arm 5 and the second support arm 6 are cross-swapped, and the first support arm 5 is located below the second support arm 6. In this state, the first support arm 5 and the second support arm 6 are arranged so that the locking holes 3b, the locking holes 52a of the first support arm 5, and the locking holes 63a of the second support arm 6, which are respectively provided below the pair of first pillars 3, are arranged in a straight line. In this series of actions, the contact piece 512 of the first supporting arm 5 moves away from the second support column 4, and the movement trajectory of the first supporting arm 5 is an arc, which first protrudes forward once and then returns to the rear. Then, when the first supporting arm 5 and the second supporting arm 6 are arranged so that the locking hole 3b of the first support column 3, the locking hole 52a of the first supporting arm 5 and the locking hole 63a of the second supporting arm 6 are arranged in a straight line, the contact piece 512 contacts the second support column 4 again, restricting the first supporting arm 5 from moving backward. At this time, the lower surface side of the front arm portion 51 of the first supporting arm 5 contacts the hanger component 42, so that the downward movement of the first supporting arm 5 is also restricted.

[0045] When the locking pin 81 is inserted through the locking holes 3b, 52a, 63a arranged in a straight line, the first support arm 5 and the second support arm 6 are completely fixed, and the basketball stand 1 is in the second form in which the height of the basketball frame 72 is adjusted to a height suitable for the mini basketball.

[0046] When switching from the second form to the first form, the process is opposite to the process of switching from the first form to the second form. Figure 5 The operator pulls out the locking pin 81 and releases the connection between the rear arm 52 of the first support arm 5 and the first support column 3, and the connection between the rear arm 63 of the second support arm 6 and the first support column 3. At this time, the operator appropriately holds the rod-shaped member 521 of the first support arm 5, the rod-shaped member 631 of the second support arm 6, and the gripping portion 621. Then, as Figure 8As shown, when the front end of the rear arm 63 is lowered by pushing the rod-shaped member 631 upward, the rear end of the middle arm 62 connected to the rear arm 63 is pressed down by the connecting member 60, and the second support arm 6 is lowered. At the same time, the rear arm 52 is lifted by lifting the rod-shaped member 521, and the first support arm 5 is lifted.

[0047] If the first support arm 5 and the second support arm 6 are moved in this way, Figure 7 As shown, the positions of the first support arm 5 and the second support arm 6 are cross-swapped, and the first support arm 5 is located above the second support arm 6. In this state, the first support arm 5 and the second support arm 6 are arranged so that the locking holes 3a respectively provided below the pair of first pillars 3, the locking holes 52a of the first support arm 5, and the locking holes 63a of the second support arm 6 are arranged in a straight line. In this series of actions, the abutment piece 512 of the first supporting arm 5 moves away from the second pillar 4, and the movement trajectory of the first supporting arm 5 is an arc, which first protrudes forward once and then returns to the rear. Then, when the first supporting arm 5 and the second supporting arm 6 are arranged so that the stop hole 3b of the first pillar 3, the stop hole 52a of the first supporting arm 5 and the stop hole 63a of the second supporting arm 6 are arranged in a straight line, the abutment piece 512 abuts against the second pillar 4 again, restricting the first supporting arm 5 from moving backward.

[0048] When the locking pin 81 is inserted through the locking holes 3a, 52a, 63a arranged in a straight line, the first support arm 5 and the second support arm 6 are completely fixed, and the basketball stand 1 is in the first form in which the height of the basketball frame 72 is adjusted to a height suitable for general competitions.

[0049] According to the basketball stand 1 of the present embodiment described above, the height of the basketball frame 72 can be easily adjusted to a height suitable for general games or mini basketball. In particular, the adjustment work can be performed without preparing a ladder or the like, and since the backboard 71 is always at a right angle to the horizontal plane, there is no need to adjust the inclination of the backboard 71. In addition, a large space is ensured below the basketball frame 72, so that the game performed below the basketball frame 72 will not be hindered. Description of Reference Numerals

[0050] 1: Basketball stand 2: Abutment part 21: Wheel 3: The First Pillar 3a: Locking hole 3b: Locking hole 31: Hanger parts 32: Restricted components 33: Hanger parts 4: Second Pillar 41: Support shaft 42: Hanger parts 43: Strengthening parts 5: First support arm 51: Forearm 511: Support shaft 512: Abutment 52: rear arm 52a: Locking hole 521: Rod-shaped parts 6: Second support arm 60: Connecting parts 61: Forearm 61a: Through hole 61b: Through hole 62: Middle arm 621: Grip 63: rear arm 63a: Locking hole 63b: Locking hole 631: Rod-shaped parts 632: Connecting parts 71: Rebounds 72: Basketball hoop 73: Net 81: Card stop 82: Counterweight

Claims

1. A basketball stand, characterized in that: The basketball stand has: a first support column supporting the first support arm and the second support arm; a second support column, supporting the second supporting arm; The first support arm has a backboard mounted on a front end portion and is rotatably connected to the second support arm at a predetermined position relative to each other; The second support arm is axially supported at a predetermined position of the second support column; as well as The locking means detachably locks the rear end portions of the first support arm and the second support arm at a predetermined position above or below the first support column.

2. The basketball stand according to claim 1, characterized in that: The second support arm is configured such that the length between the shaft support portion axially supported by the second support column and the locking portion locked to the first support column is greater than the straight line distance between the shaft support portion and the locking portion, and the second support arm can be freely bent between the shaft support portion and the locking portion.

3. The basketball stand according to claim 1, characterized in that: The basketball stand further includes a limiting portion, which is provided on the first supporting arm and abuts against the second support column from the front to limit the movement of the first supporting arm toward the rear end side.

4. The basketball stand according to claim 1, characterized in that: The basketball stand further includes a counterweight, which is disposed at a rear end side relative to the second support column and is mounted on the second support arm.

5. The basketball stand according to claim 1, characterized in that: The basketball stand also has a gripping portion, which is arranged at the rear end of the second supporting arm.

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