Goal ring for basketball

Abstract

[Problem] To provide a goal ring for basketball which is unlikely to cause trouble even for outdoor use while suppressing shaking due to impact applied in play. [Solution] A goal ring 1 for basketball includes: a bracket 2 fixed to a backboard; a support body 3 rotatably supported by the bracket 2 and supporting a goal ring 4; a biasing means for biasing the support body 3 so that the goal ring 4 is in a horizontal state; and a magnetically fixing means for magnetically fixing the bracket 2 and the support body 3 to each other in a state where the goal ring 4 is in a horizontal state.

Description

Basketball hoop

[0001] The present invention relates to a basketball hoop.

[0002] In basketball, the hoop is maintained at a specified height, but sometimes a player's hand reaches the hoop due to excessive force, or they attempt a dunk shot by hanging from the hoop. Because the impact caused by this is not small, mechanisms are provided to absorb or release the impact to prevent damage to the hoop or injury to the player.

[0003] For example, in Patent Document 1, a goal ring is rotatably supported on a bracket fixed to a backboard, and shocks acting on the goal ring are absorbed by a coil spring.

[0004] Japanese Patent Application Laid-Open No. 2004-180876 Japanese Utility Model Application Laid-Open No. 7-15071

[0005] The goal ring described in Patent Document 1 returns to its original horizontal position after an impact is applied due to the restoring force of the coil spring. However, at that time, the goal ring swings up and down due to the expansion and contraction of the coil spring, and a mechanism to suppress such swinging is required.

[0006] Basketball is also sometimes played on outdoor courts, but the mechanical structure of the goal rings installed outdoors is prone to malfunction due to wind and rain.

[0007] Therefore, one of the objects of the present invention is to provide a basketball hoop that suppresses shaking caused by impacts during play and is also less likely to cause problems when used outdoors.

[0008] In order to achieve the above-mentioned object, the basketball goal ring of the present invention comprises a bracket fixed to a backboard, a support body rotatably supported on the bracket and supporting the goal ring, a biasing means for biasing the support body so that the goal ring is in a horizontal position, and a magnetic attachment means for magnetically attaching the bracket and the support body when the goal ring is in a horizontal position.

[0009] The magnetic attraction means may magnetically attract the bracket and the support body in a biasing direction of the biasing means.

[0010] The magnetic attachment means may comprise a first magnetic body provided on the bracket side and a second magnetic body provided on the support side, and the support may have a base that rotates in conjunction with the goal ring and a holder that holds the second magnetic body, and the holder may move freely relative to the base and direct the second magnetic body toward the first magnetic body.

[0011] The support body may further include a limiting member that limits the free movement of the holder to a certain range.

[0012] The magnetic attraction means may be composed of a first magnetic body provided on the bracket side and a second magnetic body provided on the support side, and either the first magnetic body or the second magnetic body may be a magnet, and the other may be a magnetic body.

[0013] The magnetic attraction means is composed of a first magnetic body provided on the bracket side and a second magnetic body provided on the support side, and both the first magnetic body and the second magnetic body are magnets, with their magnetic poles facing each other.

[0014] The magnet may be retained in a replaceable manner.

[0015] The basketball hoop of the present invention can suppress shaking caused by impacts during play, and is less likely to cause problems when used outdoors.

[0016] 1 is a diagram showing a basketball goal ring according to a first embodiment of the present invention, (a) a plan view and (b) a back view. FIG. 2 is a side view showing the basketball goal ring according to the first embodiment of the present invention. FIG. 3 is an exploded perspective view showing the basketball goal ring according to the first embodiment of the present invention. FIG. 4 is an exploded perspective view showing the magnets and holders that constitute the basketball goal ring according to the first embodiment of the present invention. FIG. 5 is a partial cross-sectional view showing the structure of the basketball goal ring according to the first embodiment of the present invention, (a) showing the goal ring in a horizontal position and (b) showing the goal ring in a pressed-down position. FIG. 6 is a perspective view showing a basketball goal ring according to a second embodiment of the present invention. FIG. 7 is an exploded perspective view showing the basketball goal ring according to the second embodiment of the present invention. FIG. 8 is a partial cross-sectional view showing the structure of the basketball goal ring according to the second embodiment of the present invention, (a) showing the goal ring in a horizontal position and (b) showing the goal ring in a pressed-down position. FIG. 9 is a perspective view showing a modified example of the basketball goal ring according to the second embodiment of the present invention.

[0017] Structure A basketball goal ring 1 according to a first embodiment of the present invention will now be described with reference to the drawings. As shown in Figures 1 to 3, basketball goal ring 1 has a bracket 2 fixed to the backboard, a support 3 rotatably supported by bracket 2, and a goal ring 4 supported by support 3 and suspending the net.

[0018] Bracket 2 The bracket 2 is fixed to the backboard and pivotally supports the support body 3. The bracket 2 has a plate-shaped back portion 21 that abuts against the backboard and is fixed to the backboard with bolts or the like, a pair of side portions 22 that extend from both the left and right ends of the back portion 21 toward the goal ring 4, a bridge portion 23 that is installed on the upper ends of the pair of side portions 22 on the goal ring 4 side, and a magnet 71 (see FIG. 4 ) that is magnetically attracted to a magnetic body 33 provided on the support body 3.

[0019] A holder 24 that holds the magnet 71 is attached to the inside of the rear surface portion 21. As shown in Figure 4, the holder 24 is bracket-shaped and includes a fixed piece 2411 that is fixed to the rear surface portion 21 and an extension piece 2412 that is bent inward at a right angle from the upper end of the fixed piece 2411 and extends horizontally.

[0020] A holding portion 242 that holds the magnet 71 is provided on the upper surface side of the extension piece 2412, i.e., on the support body 3 side. The holding portion 242 has a recess 242b on the upper surface side into which the magnet 71 is fitted. The recess 242b has a shape that matches the shape of the magnet 71. A threaded hole 242a into which a fixing screw 72 is threaded is provided in the center of the recess 242b. The magnet 71 is fixed to the recess 242b by fitting the magnet 71 into the recess 242b and threading the fixing screw 72 into the threaded hole 242a via a through hole 71a provided in the magnet 71.

[0021] The magnet 71 is held by a holder 242 provided on the extension piece 2412, and constitutes a first magnetic body that is magnetically attracted to the magnetic body 33 provided on the support body 3. In this embodiment, the magnet 71 is disk-shaped, and a through-hole 71a is provided in its center for inserting a fixing screw 72. In this embodiment, the through-hole 71a is provided with a step, so that when the fixing screw 72 is threaded into the threaded hole 242a, the head of the fixing screw 72 fits into the upper part of the through-hole 71a. At this time, the upper surfaces of the magnet 71 and the fixing screw 72 are flush with each other, or the fixing screw 72 is embedded below the upper surface of the magnet 71. As a result, when the surfaces of the magnet 71 and the magnetic body 33 are magnetically attracted to each other, the surfaces come into contact with each other.

[0022] The magnet 71 fitted into the recess 242b can be replaced with one having the desired magnetic force depending on the sport. In this embodiment, the magnet 71 is disk-shaped, but its shape, along with the shape of the recess 242b, can be other shapes, such as rectangular. The magnet 71 can also be fixed directly to the holder 24 without the holding portion 242. The holder 24 can also be configured as a plate extending horizontally from the inside of the back surface 21, or the holder 24 and holding portion 242 can be configured as an integrated member. Alternatively, a threaded hole corresponding to the threaded hole 242a may be provided in the extension piece 2412, and the fixing screw 72 may threadably engage with the threaded hole 242a of the extension piece 2412 via the through-hole 71a of the magnet 71 and the threaded hole 242a of the holding portion 242, thereby connecting them in a fixed manner. In this case, the threaded hole 242a of the holding portion 242 may be a through-hole. Furthermore, the magnet 71 and the holder 242 may be integrally configured.

[0023] The pair of side surface portions 22 extend from the back surface portion 21 at a right angle toward the goal ring 4, and near the tip end on the goal ring 4 side, an axial hole 22a is provided that penetrates the side surface portion 22 in the thickness direction, i.e., in the width direction of the bracket 2. The axial hole 22a is provided to correspond to an axial hole 32a of the support body 3, which will be described later.

[0024] A through-hole 23a that penetrates vertically is provided in the center of the bridging portion 23. A shaft bolt 51 is inserted into this through-hole 23a from the support body 3 side. The area between the back surface portion 21 and the bridging portion 23 is open in the vertical direction, and the magnet 71 and the magnetic body 33 are magnetically attracted to each other in this area.

[0025] Support body 3 The support body 3 has a base 30 that rotates in conjunction with the goal ring 4, and a side frame 34, and is rotatably supported on the bracket 2. The base 30 has a generally U-shaped cross section, and has a flat top surface 31 and a pair of side pieces 32 that hang down from both the left and right edges of the top surface 31. The width between the pair of side pieces 32 is slightly larger than the width of the pair of side surface pieces 22 of the bracket 2, and the base 30 is attached to the bracket 2.

[0026] A through hole 31a that penetrates vertically is provided in the top surface portion 31 at a position corresponding to the through hole 23a of the bracket 2. A shaft bolt 51 is inserted into this through hole 31a from above. The shaft bolt 51 is provided with a washer on the head side that has a diameter larger than the diameter of the through hole 31a, or the diameter of the head itself is larger than the diameter of the through hole 31a, so that the shaft bolt 51 inserted from above into the through hole 31a will not slip out downward.

[0027] Furthermore, the shaft bolt 51 inserted from above through the through hole 31a of the top surface portion 31 and the through hole 23a of the bracket 2 loosely penetrates the coil spring 52 below the mounting portion 23 of the bracket 2. Furthermore, below the coil spring 52, the tip of the shaft bolt 51 is fastened with a nut 54 via a washer 53, so that the coil spring 52 is sandwiched between the mounting portion 23 and the washer 53. This coil spring 52 contracts when the support 3 rotates upward away from the bracket 2 from a state in which the goal ring 4 is in a horizontal position, and expands and returns to its original position when the support 3, having separated from the bracket 2, rotates toward the bracket 2. The coil spring 52, which expands and contracts in this manner, constitutes a biasing means that biases the support 3 so that the goal ring 4 is in a horizontal position.

[0028] Furthermore, a magnetic body 33 is provided on the underside of the top surface 31, i.e., on the bracket 2 side, at a position corresponding in the vertical direction to the magnet 71 on the bracket 2. The magnetic body 33 constitutes a second magnetic body that is magnetically attracted to the magnet 71 on the bracket 2 side. This magnetic body 33 is provided to protrude downward from the underside of the top surface 31. In this embodiment, the magnetic body 33 has a T-shaped cross section and is composed of a rod-shaped support portion that threads into a threaded hole provided in the top surface 31 and extends to the underside of the top surface 31, and a disk-shaped magnetically attracted portion provided at the tip of the support portion. The surface shape of the magnetically attracted portion corresponds to the surface shape of the corresponding magnet 71, and is circular in this embodiment. The magnet 71 on the bracket 2 and the magnetic body 33 on the support body 3 are provided so that they are magnetically attracted to each other when the base 30 is attached to the bracket 2 and the goal ring 4 is in a horizontal position. On the other hand, when the support 3 rotates relative to the bracket 2 and the goal ring 4 moves down, the magnet 71 and the magnetic body 33 move away from each other despite the magnetic force that attracts them to each other.

[0029] The magnetic body 33 exhibits magnetism with respect to the magnet 71 and is a so-called ferromagnetic body such as iron, cobalt, nickel, or an alloy thereof. In this embodiment, the magnet 71 of the bracket 2 and the magnetic body 33 of the support body 3 are an example of a magnetic attraction means for magnetically attracting the bracket 2 and the support body 3, and the magnetic attraction means magnetically attracts the bracket 2 and the support body 3 along the biasing direction of the coil spring 52. In other examples of the magnetic attraction means, a magnetic body may be held on the bracket 2 side instead of the magnet 71, and a magnet may be held on the support body 3 side instead of the magnetic body. Alternatively, a magnet may be held on the support body 3 side instead of the magnetic body 33, so that the magnet 71 on the bracket 2 side and the magnet on the support body 3 side have opposite polarities. If the magnetic body 33 on the support body 3 side is a magnet, its structure may be the same as the structure for holding the magnet 71 on the bracket 2 side, and the magnet held on the support body 3 side may also be replaceable.

[0030] The pair of side pieces 32 are provided with axial holes 32a near their tips on the goal ring 4 side, corresponding to the axial holes 22a provided in the side surface portions 22 of the bracket 2. The support body 3 is rotatably supported by the bracket 2 at the side surface portions 22 and the side pieces 32 via the axial bolts 6. That is, the axial bolts 6 pass loosely through the axial holes 32a provided in the side pieces 32 of the base 30 and the axial holes 22a provided in the side surface portions 22 of the bracket 2, and the axial bolts 6 are fastened with nuts. This allows the support body 3 to rotate within a certain range around the axial bolts 6.

[0031] A side frame 34 extending in an arc in the width direction of the support body 3 is provided on the goal ring 4 side of the support body 3, and the base 30 moves in conjunction with the movement of the goal ring 4. The annular goal ring 4 is fixed to the inside of the side frame 34, thereby supporting the goal ring 4 on the support body 3. The side frame 34 and the goal ring 4 may be fixed by screws or welding, or may be configured as an integrated member.

[0032] Goal ring 4 The goal ring 4 is held inside the side frame 34. The goal ring 4 is composed of an annular goal ring body 41, and on the underside of the goal ring body 41, rings 42 for suspending and supporting the net are provided at regular intervals around the circumference.

[0033] Operation The operation of the basketball goal ring 1 configured as described above when used in a basketball game will be described with reference to Figure 5. Figure 5(a) shows the goal ring 4 held horizontally. When no external force is applied, the basketball goal ring 1 maintains this position by the biasing force of the coil spring 52, which acts to attract the base 30 toward the bracket 2, and the magnetic force acting between the magnet 71 and the magnetic body 33, which are magnetically attracted to each other.

[0034] When a player slams down on the goal ring 4 by dunking or touching it, the goal ring 4 and the support 3 are supported without rotating relative to the bracket 2 unless the impact reaches a predetermined value. On the other hand, if the impact exceeds the predetermined value, the coil spring 52 expands, the magnet 71 and the magnetic body 33 separate, and the goal ring 4 and the support 3 rotate relative to the bracket 2, as shown in Figure 5(b). As a result, the goal ring 4 tilts downward as if being pushed down, and the impact on the goal ring 4 can be absorbed.

[0035] The impact required to rotate the goal ring 4, i.e., the predetermined set value, is determined by the spring constant of the coil spring 52 and the magnetic force acting between the magnet 71 and the magnetic body 33. Therefore, it is advisable to adjust the predetermined set value by using coil spring 52 and magnet 71 with appropriate specifications depending on the content or intensity of the game.

[0036] When the impact is absorbed and the goal ring 4 is released from the impact, the base 30 rotates in the opposite direction to when the impact was applied due to the compressive force of the extended coil spring 52. As a result, the magnet 71 and the magnetic body 33 are magnetically attracted to each other again, and the goal ring 4 returns to its original horizontal position.

[0037] With the basketball goal ring 1 according to this embodiment, after the goal ring 4 wobbles in response to the expansion and contraction of the coil spring 52 due to the impact applied during play, the wobbles are quickly suppressed by the magnetic attraction between the magnet 71 and the magnetic body 33. Furthermore, unlike a mechanical structure, the magnetic force acting between the magnet 71 and the magnetic body 33 functions without being affected by wind and rain, so the basketball goal ring 1 is unlikely to be affected when used outdoors.

[0038] Second Embodiment Next, a basketball goal ring 8 according to a second embodiment of the present invention will be described. As shown in Figures 6 and 7, the basketball goal ring 8 according to this embodiment has a support body 9 that is configured differently from the support body 3 described above, and this support body 9 differs from the support body 3 in the mechanism for holding the magnetic body 93 that corresponds to the magnetic body 33 described above. Note that the same components and mechanisms as those in the basketball goal ring 1 described above will be assigned the same reference numerals and will not be described again.

[0039] The support body 9 has a base 30 that rotates in conjunction with the goal ring 4, a side frame 34, and a holder 90, and is rotatably supported by the bracket 2. The holder 90 is made up of a first holder 91 provided on the support body 3 side and a second holder 92 provided on the bracket 2 side.

[0040] The first holding body 91 is a member with a substantially U-shaped cross section, and has a flat top surface 911 and a pair of side pieces 912 hanging down from both left and right edges of the top surface 911. The width between the pair of side pieces 912 is at least slightly smaller than the width of a pair of side pieces 922 of the second holding body 92, which will be described later, and the first holding body 91 fits inside the second holding body 92.

[0041] The top surface portion 911 has a pair of through holes 911a formed in a direction perpendicular to the direction from the backboard toward the goal ring 4. In this embodiment, the top surface portion 911 constituting the base 30 of the support body 9 has a pair of through holes formed on a position closer to the backboard than the position where the axle bolts 51 are provided, and axle bolts 55 are inserted into the pair of through holes from above. The axle bolts 55 inserted from above into the pair of through holes formed in the top surface portion 911 are each screwed into the through holes 911a formed in the top surface portion 911 of the first holder 91. In this way, the first holder 91 is fixed to the lower surface side of the top surface portion 31 of the base 30. The top surface portion 911 and the top surface portion 31 are fixed in positions where the upper surface of the top surface portion 911 and the lower surface of the top surface portion 31 are spaced apart from each other by the axle bolts 51 screwed into the through holes 911a. Furthermore, the tip of the shaft bolt 51 threaded into the through hole 911a may be fastened and fixed with a nut on the underside of the top surface portion 911. Furthermore, as long as the upper surface of the top surface portion 911 and the lower surface of the top surface portion 31 are fixed in positions spaced apart from each other, the top surface portion 911 and the top surface portion 31 may be fixed to each other by other attachment means instead of the shaft bolt 51.

[0042] The pair of side pieces 912 are provided with through holes 912a approximately in the center thereof at positions corresponding to through holes 922a provided in side pieces 922 of the second holding body 92, which will be described later. The height of the pair of side pieces 912 is determined by the height at which the lower ends of the pair of side pieces 912 are spaced upward from the bottom surface portion 921 of the second holding body 92 when the second holding body 92 is attached to the first holding body 91.

[0043] The second holding body 92 is a member with a substantially U-shaped cross section, and has a flat bottom surface portion 921 and a pair of side pieces 922 hanging upward from both left and right side edges of the bottom surface portion 921. The width between the pair of side pieces 922 is at least slightly larger than the width of the pair of side pieces 912 of the first holding body 91 described above, and the second holding body 92 can accommodate the first holding body 91 inside it.

[0044] The pair of side pieces 922 have through holes 922a formed in the approximate centers thereof at positions corresponding to the through holes 912a formed in the side pieces 912 of the above-described first holding body 91. The depth of the pair of side pieces 912 is determined so that, when the second holding body 92 is attached to the first holding body 91, the upper ends do not protrude above the top surface 911 of the first holding body 91, and the lower ends of the side pieces 912 do not abut against the bottom surface 921.

[0045] A pair of magnetic bodies 93 are attached to the underside of the bottom portion 921. These magnetic bodies 93 are an example of the second magnetic body corresponding to the magnetic body 33 described above, and in this embodiment, are disk-shaped corresponding to the surface shape of the magnet 71 and are attached to the underside of the bottom portion 921. As with the basketball goal ring 1 described above, the magnet 71 of the bracket 2 and the magnetic body 93 of the support body 9 are arranged so as to be magnetically attached when the base 30 is attached to the bracket 2 and the goal ring 4 is in a horizontal position. On the other hand, when the support body 9 rotates relative to the bracket 2 and the goal ring 4 is lowered, the magnet 71 and the magnetic body 93 separate despite the magnetic force that attracts them to each other.

[0046] In addition to the examples of the material of the magnetic body 93, the above-mentioned configurations applied to the magnetic attraction means constituted by the magnetic body 33 and magnet 71 can also be applied to the magnetic body 93 and magnet 71 in this embodiment.

[0047] The first holder 91 and the second holder 92 are connected by an axial bolt 56 inserted through a through hole 912a and a through hole 922a provided in each side piece 912 and 922. The axial bolt 56 loosely passes through the through holes 912a and 922a and is prevented from coming loose by having its tip secured with a nut or the like. The first holder 91 and the second holder 92 rotate relative to each other around the movable portion, which is the connecting portion formed by the axial bolt 56 and the through holes 912a and 922a. As a result, the second holder 92 moves freely relative to the base 30 due to its own weight and the gravity acting on the magnetic body 93, regardless of the rotation of the base 30 linked to the goal ring 4, and faces the magnetic body 93 toward the magnet 71 so that the lower surface of the magnetic body 93 faces the upper surface of the magnet 71.

[0048] As long as the second holder 92 is configured to be rotatable relative to the first holder 91 around the movable part formed by the axial bolt 56 and the through holes 912a, 922a, the first holder 91 and the second holder 92 may have other shapes, and for example, the second holder 92 may be configured to fit within the width of the first holder 91. Furthermore, in this embodiment, the first holder 91 is connected to the base 30 by the axial bolt 55, but regardless of this, the first holder 91 and the base 30 may be integrated to form a single member.

[0049] Operation The operation of the basketball goal ring 8 configured as described above when used in a basketball game will be described with reference to Figure 8. Figure 8(a) shows the goal ring 4 held horizontally. When no external force is applied, the basketball goal ring 8 maintains this position by the biasing force of the coil spring 52, which acts to attract the base 30 toward the bracket 2, and the magnetic force acting between the magnet 71 and the magnetic body 93, which are magnetically attracted to each other.

[0050] When a player slams down on the goal ring 4 by dunking or touching it, the goal ring 4 and the support 9 are supported without rotating relative to the bracket 2 unless the impact reaches a predetermined value. On the other hand, if the impact exceeds the predetermined value, the coil spring 52 expands, the magnet 71 and the magnetic body 93 separate, and the goal ring 4 and the support 9 rotate relative to the bracket 2, as shown in Figure 9(b). As a result, the goal ring 4 tilts downward as if being pushed down, and the impact on the goal ring 4 can be absorbed.

[0051] Here, when the magnet 71 and the magnetic body 93 separate, the support body 3 moves in a rotational manner around the axial bolt 6, so that the base 30 and the first holding body 91 connected to the base 30 are lifted upward at an angle. In contrast, the second holding body 92, to which the magnetic body 93 is attached, is rotatably connected to the first holding body 91 via the axial bolt 56. Therefore, even when the first holding body 91 is lifted obliquely, the force that separates the magnetic body 93 and the magnet 71, which is applied to the surface where the magnetic body 93 and the magnet 71 are magnetically attracted to each other, is not biased and acts approximately uniformly over the entire surface. As a result, the magnetic attraction force is not released from the portion of the magnetic body 93 that magnetically attracts the magnet 71 far from the axial bolt 6, and the magnetic attraction force can be fully exerted.

[0052] When the impact is absorbed and the goal ring 4 is released from the impact, the compressive force of the expanded coil spring 52 causes the base 30 to rotate in the opposite direction from when the impact was applied. As a result, the magnet 71 and the magnetic body 93 are magnetically attracted to each other again, and the goal ring 4 returns to its original horizontal state. Even at this time, because the second holder 92 is rotatably connected to the first holder 91 via the axial bolt 56, the magnetic body 93 attached to the second holder 92 is magnetically attracted to the magnet 71 while maintaining a horizontal state. As a result, the surface of the magnetic body 93 that is magnetically attracted to the magnet 71 is magnetically attracted to the magnet 71 while receiving a uniform magnetic force from the magnet 71 across the entire surface. As a result, even when the magnetic body 93 and the magnet 71 are magnetically attracted to each other, the magnetic attraction force is fully exerted without the magnetic attraction occurring from the portion of the magnetic body 93 that magnetically attracts the magnet 71 closest to the axial bolt 6.

[0053] In the basketball goal ring 8 described above, the first holder 91 and the second holder 92 are configured to rotate relative to each other by a movable part formed by the axial bolt 56 and the through holes 912a, 922a, but as shown in Figure 9, a limiting member 94 may be provided to limit the range of rotation to a certain range.

[0054] In the illustrated example, the restricting member 94 is made up of a pair of rod-shaped members, and is provided in parallel to the direction from the backboard toward the goal ring 4 at approximately the center of the upper surface of the bottom surface 921 of the second holder 92, on the first holder 91 side. The restricting member 94 stands on the upper surface of the bottom surface 921 of the second holder 92. The upper end of the restricting member 94 is spaced apart from the lower surface side of the top surface 911 of the first holder 91.

[0055] As a result, even if the magnetic material 93 separates from the magnet 71 during a game and the second holder 92 swings around the shaft bolt 56 relative to the first holder 91, the second holder 92 will not rotate any further once the upper end of the limiting member 94 abuts against the underside of the top surface 911 of the first holder 91. This makes it possible to prevent the second holder 92 from rotating so much that it becomes difficult for the magnetic material 93 to be magnetically attached to the magnet 71 again.

[0056] The above-described configuration of the limiting member 94 is one example, and other configurations may be adopted as long as they are able to limit the rotation of the second holder 92 within a predetermined range. For example, the limiting member 94 may be provided on the underside of the top surface 911 of the first holder 91, with its lower end spaced apart from the bottom surface 921 of the second holder 92. The limiting member 94 may also be made of a cushioning material such as urethane foam. The pair of limiting members 94 may be connected to each other, or may be integrally configured.

[0057] DESCRIPTION OF SYMBOLS 1: Basketball goal ring 2: Bracket 20: Base 21: Back portion 22: Side portion 22a: Shaft hole 23: Mounting portion 23a: Through hole 24: Holder 2411: Fixing piece 2412: Extension piece 242: Holder 242a: Screw hole 242b: Recess 3: Support 30: Base 31: Top surface 31a: Through hole 32: Side piece 32a: Shaft hole 33: Magnetic material 34: Side frame 4: Goal ring 41: Goal ring body 42: Ring fitting 51: Shaft bolt 52: Coil spring 53: Washer 54: Nut 6: Shaft bolt 71: Magnet 71a: Through hole 72: Fixing screw 8 : Basketball hoop 9 : Support body 91 : First holder 92 : Second holder 93 : Magnetic body 94 : Restriction member

Claims

1. A basketball goal ring comprising: a bracket fixed to a backboard; a support body rotatably supported on said bracket and supporting a goal ring; a biasing means for biasing said support body so that said goal ring is in a horizontal position; and a magnetic attachment means for magnetically attaching said bracket and said support body when said goal ring is in a horizontal position.

2. The basketball hoop according to claim 1, wherein the magnetic attachment means magnetically attaches the bracket and the support body in the biasing direction of the biasing means.

3. A basketball goal ring as described in claim 1, wherein the magnetic attachment means comprises a first magnetic body provided on the bracket side and a second magnetic body provided on the support side, the support having a base that rotates in conjunction with the goal ring and a holder that holds the second magnetic body, and the holder moves freely relative to the base and directs the second magnetic body toward the first magnetic body.

4. The basketball hoop according to claim 3, wherein the support body further comprises a limiting member that limits the free movement of the holder to a certain range.

5. A basketball hoop as described in claim 1, wherein the magnetic attachment means is composed of a first magnetic body provided on the bracket side and a second magnetic body provided on the support side, and either the first magnetic body or the second magnetic body is a magnet, and the other is a magnetic body.

6. A basketball hoop as claimed in claim 1, wherein the magnetic attachment means comprises a first magnetic body provided on the bracket side and a second magnetic body provided on the support body side, and both the first magnetic body and the second magnetic body are magnets, with their magnetic poles facing each other.

7. The basketball hoop according to claim 5 or 6, wherein the magnet is retained in a replaceable manner.

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