JPS6348297Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a metal fitting for stretching a table tennis net.

In the past, table tennis competitions were usually played using hardballs, but in recent years, softball-style table tennis competitions have also begun to be held. However, between hard and soft balls,
There is a difference in the height of the nets spread over the table, with the height of the nets being stretched over the table 2 times higher for soft balls than for hard balls.
The current rule is to increase the height by cm.

Therefore, the object of the present invention is to provide a netting fitting that can easily and reliably adjust the height of the support post in response to such competitions involving both hard and soft balls.

The structure and operation of the present invention will be explained based on the drawings.

Reference numeral 1 denotes a base mounting bracket that is attached and fixed to the base plate a by any means, and 2 represents a support that is pivotally attached to the left and right side pieces 1' of the outer end of the base mounting bracket 1, and the support supports stand vertically as shown in the figure. At the same time, the base mounting bracket 1 is attached from the outside.
It can be rotated and stored on the back side. Reference numeral 3 designates a cap that fits into the tip of the support 2, and this cap fits into the tip of the support 2 with an auxiliary tube 4 interposed therebetween. That is, the elastic synthetic resin cap 3 is fixed in the auxiliary tube 4 via its lower end protrusion. Reference numeral 5 denotes an adjustment hole provided on one side of this auxiliary pipe 4, and this adjustment hole has stop holes 5', 5', and 5', respectively, for fixing a projection 6, which will be described later, at its lower and upper limits.
5", and the center of this vertical stop hole is the pillar 2.
The upper and lower stop holes are connected by a groove that is aligned in the vertical direction of the net and is offset in the direction in which the net is stretched.
Therefore, the modified L-shaped adjustment hole 5 shown in FIG.
In both cases, and in the case of the U-shaped adjustment hole 5 shown in FIG.
is on a vertical line. Reference numeral 6 denotes a protrusion projecting inward from one side of the tip end of the support column 2, and this protrusion engages with the adjustment hole 5.

For soft balls, the net must be positioned higher, so when the cap 3 is rotated together with the auxiliary tube 4 and pulled up, the protrusion 6 is inserted into the lower limit stop hole 5' of the adjustment hole 5. It is stopped and fixed at (see Fig. 1 and Fig. 4). Therefore, it is sufficient to spread the net in this state.

In addition, in the case of hard balls, the position of the net must be lowered, so after rotating the cap 3 and disengaging the protrusion 6 from the lower limit stop hole 5' of the adjustment hole 5, the cap 3 is removed. When pulled down and rotated, the protrusion 6 is stopped and fixed in the upper limit stop hole 5'' of the adjustment hole 5 (see FIG. 3).

In this way, the present invention pivots the support 2 to the outer end of the base mounting bracket 1, provides an adjustment hole 5 at one location on the side of the auxiliary pipe 4 that fits into the tip of the support, and the adjustment hole 5. is provided with stop holes 5' and 5'' for the protrusion 6 described below at its lower and upper limits, respectively, and the centers of these upper and lower stop holes are:
The upper and lower stop holes are connected to each other by a groove that is on a line in the vertical direction of the support and is shifted in the direction in which the net is stretched, and a protrusion 6 protruding from one side of the support is engaged with this adjustment hole. Cap 3 on the auxiliary pipe
The structure features that the height of the support can be adjusted, so the height position of the net, which varies depending on the soft and hard type of table tennis, can be easily and reliably changed with a single metal fitting. It is extremely rational and convenient, and has great practical effects.

[Brief explanation of the drawing]

Figure 1 is a partially cutaway side view of the whole, Figure 2 is a sectional view taken along line A-A of the same as above, Figure 3 is a side view of the whole, and Figure 4 is a side view of the whole.
The figure is a partially cutaway side view of another example. 1 is the base mounting bracket, 2 is the pillar, 3 is the cap, 4
is an auxiliary pipe, 5 is an adjustment hole, 5' and 5'' are stop holes, and 6 is a protrusion.

Claims (1)

[Scope of utility model registration request] A support post is pivotally attached to the outer end of the base mounting bracket, and an adjustment hole is provided at one location on the side of the auxiliary pipe that fits into the tip of the support support, and this adjustment hole has the lower and upper limits where the protrusions described below stop, respectively. The center of the upper and lower stop holes is located on a line in the vertical direction of the support, and the upper and lower stop holes are connected by a groove that is offset in the direction in which the net is stretched. 1. A table tennis net tensioning fixture, characterized in that the height of the support can be adjusted by engaging a protrusion protruding from the support pipe and fitting a cap into the auxiliary pipe.