JPH0715558Y2 - Trampoline bed - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION INDUSTRIAL FIELD OF APPLICATION This invention relates to a trampoline bed.

BACKGROUND ART In a trampoline bed (registered trademark), a net-shaped knitted net is sewn with a peripheral edge portion of a net or the like to be edged, and one edge portion of a plurality of springs is connected to the edged portion at predetermined intervals. The other end of the spring is connected to a frame to form a trampoline bed, and when the athlete jumps on the net, the gymnastics equipment allows the athlete to fly high into the air by the tension of the net.

However, the tension (elasticity) between the central part and the peripheral part of the net is different, and even if the net jumps in the vicinity of the peripheral part, it cannot jump as high as the central part, and the net feels hard to the player. May be given, which may prevent the competition from running smoothly.

Then, this invention was made for the purpose of keeping the tension in the peripheral portion of the net as close as possible to that in the central portion.

Means for Solving the Problems In order to solve the above problems, the present invention provides a spring formed of a plate body having a plurality of through holes for inserting and locking a predetermined number of ends of a net cord for knitting a net. Hanging parts,
In a trampoline bed in which a plurality of the springs are arranged and connected to the peripheral portion of the net to lock one end of each spring, and the other end of each spring is locked to the frame, the through hole of the spring-loaded component is This is a trampoline bed in which substantially circular holes through which the mesh cord is inserted are formed in three rows in the front, middle, and rear.

Action According to the above configuration, since the peripheral portion of the net is connected to the frame by a plurality of spring-loaded parts aligned in the longitudinal direction of the net and no edging by sewing is performed, the peripheral portion of the net is relatively free in the longitudinal direction. Therefore, there is no great difference in tension between the central part and the peripheral part of the net, and there is no fear that the peripheral part gives the player a hard feel.

Embodiment An embodiment of the present invention will be described below with reference to the drawings.

1 and 2 are general views of a trampoline to which the present invention is applied, in which 1 is a frame, legs for holding the net 2 at a predetermined height from the floor, and 3 are springs, The frame 2 is connected to the peripheral portion of the net 2, and in particular, the spring-loaded component 4 is interposed between the spring 3 and the net 2, and 5 is a spring cover, which is connected to the frame 1 to cover the spring and covers the spring 2. It extends to the peripheral portion.

As shown in FIG. 3, the spring-loaded component 4 is composed of a pentagonal plate body in which a rectangle and a triangle are integrated, and has a bottom portion 6 having a substantially circular shape with a predetermined pitch of, for example, three vertical rows and twelve horizontal rows. The through hole 7 is provided, and the apex portion 8 is provided with the spring hooking hole 9. The spring-worn component 4 has a maximum width W of about 10 cm and a height H of about 4 cm, and the material of the plate body is preferably aluminum or plastic such as nylon, which is lightweight, but is not necessarily limited thereto. The pitch of the through holes 7 is set to be substantially the same as the pitch of the net string 10 having a substantially circular cross section,
Further, as shown in FIG. 4, the net string 10 of the net 2 is pierced through the front row and the last row and inserted into the middle row so as to be fixed by friction. Therefore, the tension of the mesh cord 10 at the peripheral portion can be made uniform while adjusting the tension of each mesh cord 10.

Therefore, according to the trampoline bed using the spring-loaded component 4, even when the player lands near the spring-loaded component 4, the net string 10 of the net 2 can expand and contract in the longitudinal direction thereof,
Since the peripheral portion of the net 2 can be expanded and contracted in the longitudinal direction, it does not give a hard feeling to the player, and moreover, it is possible to form a state having substantially the same elasticity as when landing on the central portion of the net 2.

Advantageous Effects of Invention According to the above-described invention, a plurality of circular holes for inserting and locking a predetermined number of ends of a braid for knitting a net are formed from plate bodies formed in three rows in the front, middle, and rear. It is a spring-loaded component and the net cord has a substantially circular cross section, so that the tension of the net cord connected to the spring-loaded component can be adjusted while adjusting the tension evenly one by one. The tension in the vicinity of the spring and the tension in the center of the peripheral part of the can be kept substantially even, and even if the athlete lands on the peripheral part,
Elasticity that is not much different from landing on the central part is obtained, and therefore, the tension of the trampoline bed can be appropriately adjusted according to the player's preference and weight. Further, unlike the conventional case, the work of edging with a cloth is not required, and the manufacturing process can be omitted.
Furthermore, the inertial force of the spring-loaded component acts to reduce the vibration or vibration of the peripheral portion of the net.

[Brief description of drawings]

1 is a partially cutaway plan view of a trampoline embodying the present invention, FIG. 2 is its front view, FIG. 3 is a perspective view of a spring-loaded component, and FIG. 4 is a perspective view showing the relationship between the spring-loaded component and a net. It is a figure. 1 ... frame, 2 ... net, 3 ... spring, 4
...... Spring hook parts, 7 ...... Through hole, 9 ...... Spring hook hole, 10
...... Net string

Claims (1)

[Scope of utility model registration request] 1. A spring-loaded component comprising a plate body having a through hole for inserting and locking a predetermined number of end portions of a net cord for knitting a net, a plurality of which are provided at a peripheral portion of the net. In a trampoline bed in which one end of each spring is locked and the other end of each spring is locked to a frame, the mesh cord has a substantially circular cross section, and the spring hooking component The trampoline bed is characterized in that the through holes are formed by forming substantially circular holes through which the mesh cord is inserted in three rows in front, middle, and rear.