JPS6334707Y2 - - Google Patents

Description

[Detailed explanation of the invention] This invention has a volleyball net that stands upright higher than the net on both sides of the net to detect fouls such as players over the net, and whether or not the ball that goes over the net or hits the net is within the effective range. This article relates to a volleyball antenna that is attached to the outside of the side marker of a net as a guide for determining the number of players.

Conventionally, the 5th antenna has been used as a volleyball antenna.
As shown in the figure, there is a hook 33 for hooking the upper edge of the net in the middle of the pole, a threaded cylinder fixed at a position lower than the hook 33, and a threaded cylinder that is externally fitted onto the threaded cylinder, and is attached to the hook side. A volleyball antenna (Showa 53-Jikko No.
43260) was proposed. However, in such a conventional antenna, the hook 33 and the tightening nut 44 are formed as separate members and each has its own rotation function, so when it is installed on the net, the contact surface of the tightening nut 44 In many cases, the bolt was not directly facing one side of the net, and the pushing part of the tightening nut had to be returned to its normal direction each time it was installed, which was extremely time-consuming and inconvenient. The problem was that the upper edge of the net held between the pole and the hook often became wedged in by over-tightening the pole, making removal extremely difficult.

This invention solves the inconvenience of conventional volleyball antennas where the tightening nut has to be returned to its normal direction each time it is installed, and the upper edge of the net is often bitten by the pole being over-tightened and removed. The aim is to overcome deficiencies such as difficulty in

The present invention is explained in accordance with the drawings.
As shown in the figure and FIG. 2, in a volleyball antenna to which a volleyball net is attached, a pole a is provided with a washer 1 having a male screw 2 at a desired location, a hook 3 is provided above the pole a, and a hook 3 is provided below as appropriate. A cylindrical fitting part b is provided in the length opening 4 and the cylindrical part 5 of the opening 4 with a female thread 6 that engages with the male thread 2 of the washer 1 of the pole a, and the pole a is inserted thereinto. Consisting of a pressing part c that integrally forms a bearing part 7 and a clamping plate 8, the bearing part 7 of the pressing part c is loosely fitted into the opening 4 of the mounting part b, and these mounting parts b and a pressing part c are communicated and supported by a pole a, and a washer 1 feeds a screw by rotation of the pole a, and a pressing part c and an L-shaped hook 3 that slide up and down accordingly. The main structure is that the upper edge portion 9 of the net is tightly fastened to the inner surface of the net. At this time, pressing part c
As shown in FIG. 4, it is integrally formed with a bearing part 7 through which the pole a is inserted and a flat clamping plate 8, and both ends 12 of the clamping plate 8 are connected to the mounting part b as shown in FIG. It has a structure that engages along the opening edge 11, and is configured to move up and down in parallel within the opening 4 of the fitting part b by screw feeding of the washer 1.

Next, as shown in FIG. 2, the hook 3 is located above the mounting part b and has a downward L-shape, and is formed integrally with the mounting part b.

To attach the upper clamping device of the volleyball antenna of the present invention to the net, rotate the washer 1 of the pole a to position it downward, and then attach the clamping plate 8 of the pressing part c to the upper edge portion 9 of the net. Place the upper hook 3 on the upper edge part 9 of the net.
When the pole a inserted into the mounting part b is rotated, the washer 1 is pushed up by the screw feed, and the pressing part c, which is loosely fitted on the upper part of the washer 1, is moved as the washer 1 rises. It slides upward along the opening 4 of the attachment part b, and the upper edge part 9 of the net is inserted between it and the hook 3 and fixed.
After the upper edge portion 9 of the net and the antenna are fixed in this manner, the lower edge portion 10 of the net is fixed using a clamping device previously attached to the lower end of the pole a. This completes the attachment of pole a to the net.

That is, as mentioned above, the upper edge portion 9 of the net
As shown in the figure, it is held between a hook 3 and a pressing part c that moves up and down within an opening 4 of a mounting part b. Therefore, the pressing part c is loosely fitted so that its bearing 7 does not rotate (not threaded) following the rotation of the washer 1, so it moves up and down following the screw feed caused by the rotation of the washer 1. the opening edge 11 of the fitting b;
Therefore, according to this invention, the washer 1 and the hook 3 are separated via the pressing part c, so that even if the upper edge part 9 of the net is separated from the pressing part c and the hook 3 Even if the washer 1 is strongly clamped between the nets and becomes wedged, it is possible to lower the washer 1 and release the pressing part c, so that the upper edge portion 9 of the net can be easily removed from the wedged state. can be made to leave. Furthermore, since the pressing part c is loosely fitted into the opening 4 of the mounting part b, the clamping plate 8 slides in parallel along the opening edge 11 by screw feeding of the washer 1, and the hook 3 is pushed into the net. When latching to the upper edge portion 9, the pressing part c does not shake from side to side and hindering latching. Furthermore, the clamping device of the present invention has a cylindrical attachment part b.
is integrally formed with an opening 4 having a pressing part c therein, a cylindrical part 5 at the bottom thereof, and a hook 3,
Since the pressing part c has a structure in which it moves up and down within the opening 4 of the attachment part b, the absolute width of the clamping device can be reduced as much as possible, and the competition requires the clamping device to be made narrow. It can fully comply with the rules, and there is no need to separately provide a stopper or a stopper, and the pressing part c will not fall off.

[Brief explanation of the drawing]

The drawings show an embodiment of the upper edge holding device of the volleyball antenna net of the present invention, FIG. 1 is a schematic perspective view thereof, FIG. 2 is a schematic sectional view of the main part, and FIG. 3 is a sectional view of the attachment part. 4 shows a pressing part, FIG. 4 is a schematic cross-sectional view thereof, and FIG. 4 is a schematic longitudinal cross-sectional view thereof. FIG. 5 is a perspective view of a conventional product. Explanation of symbols, a...Pole, b...Mounting parts,
c... Pressing part, 1... Washer, 2... Male thread, 3... Hook, 4... Opening, 5... Cylindrical part, 6... Female thread, 7... Bearing part, 8... ...Holding plate, 9... Upper edge of net, 10... Lower edge of net, 11... Edge of opening, 12... Both ends,
33...Hook, 44...Tightening nut.

Claims (1)

[Scope of utility model registration request] In a volleyball antenna attached to a volleyball net, a pole a has a washer 1 having a male screw 2 attached to a desired part of the ball a;
A hook 3 is provided above, an opening 4 of an appropriate length is provided below the hook 3, and a female screw 6 is provided in the cylindrical portion 5 below the hook 3 to be screwed into the male screw 2 of the washer 1 of the pole a.
It consists of a cylindrical mounting part b provided with a cylindrical mounting part b, and a pressing part c integrally formed with a bearing part 7 through which the pole a is inserted and a clamping plate 8 which clamps the upper edge of the net,
The pressing part c loosely fits into the opening 4 with its clamping plate 8 along the edge of the opening 4 and facing the hook 3, and the hook part and the cylindrical part 5 of the mounting part b. and the bearing part 7 of the pressing part c are connected and supported by a pawl a, and the pressing part moves up and down as the washer 1 is screwed and fed by the rotation of the pawl a. An upper edge clamping device for a pole antenna net, characterized in that the upper edge portion 9 of the net is tightly clamped by the hook 3 and the inner surface 8 of the hook 3.