JP3158933U - Adjustable ball game net frame - Google Patents

Abstract

An adjustable ball game net frame capable of smoothly adjusting height is provided.
A stereotaxic unit is composed of an upper half and a lower half, and at least one recess is provided in the upper half, and an elastic localization unit 22 extends from the lower end of the recess, and is positioned on the inner surface of the localization unit. A protrusion 221 is provided, an inner bush having a slide groove 23 provided on the outer side surface of the upper half portion, and at least one convex portion 31 is provided on the inner side surface. Further, the convex portion is provided between the inner bush and the outer bush, and the convex portion of the outer bush is formed on the first or second positioning portion 232 of the sliding groove. A spring 40 to be held, an outer tube whose one end is fixed to the lower half of the inner bush, and a plurality of positioning holes are provided along the axial direction thereof, and are provided inside the inner bush and the outer tube 50 so as to be adjustable. And an inner tube 60 in which the localization hole corresponds to the localization projection of the localization unit.
[Selection] Figure 6

Description

The present invention relates to a ball game net frame, and more particularly to an adjustable ball game net frame.

After a conventional ball game net frame (for example, a tennis net frame or a volleyball net frame) is stretched, the height cannot be adjusted, and the net frame height of each type of ball game is different. It cannot be applied to all ball games with one net frame and is extremely inconvenient to use. A ball game net frame 10 shown in FIG. 1 and FIG. 2 includes an inner tube 11 and an outer tube 12 that can be adjusted, and a positioning tool 13 that can position the inner tube 11 and the outer tube 12. By moving the localization convex portion 131 of the localization tool 13 from the localization hole 121 of the outer tube 12 by pressing the localization projection 131, the outer tube 12 can be expanded and contracted with respect to the inner tube 11.

However, this has the following drawbacks.
The stereotaxic tool 13 does not have a stereotactic structure after being assembled in the inner tube 11, and when the stereotactic hole 111 of the internal tube 11 is aligned with the stereotactic hole 121 of the external tube 12, Since the inner tube 11 and the outer tube 12 are localized only by inserting the convex portion 131, when the total length of the inner tube 11 and the outer tube 12 is adjusted, the localization convex portion 131 of the localization tool 13 is inside the inner tube 11. When the retraction step is performed, the localization tool 13 can slide the inner tube 11, and the localization projection 131 may be locked to the wall surface of the inner tube, so that the original function of the localization tool 13 is lost. Thus, the inner tube 11 and the outer tube 12 cannot be localized. As described above, the conventional ball game net frame 10 has a drawback that the height cannot be adjusted smoothly.

The main object of the present invention is to provide an adjustable ball game net frame that can be smoothly adjusted in height.

According to the adjustable ball game net frame of the present invention, the stereotaxic unit is composed of an upper half and a lower half, and is provided with at least one depression in the upper half and having elasticity from the lower end of the depression. And a stereotactic projection is provided on the inner side surface of the stereotaxic unit, a slide groove is provided on the outer side surface of the upper half, and one end of the slide groove is a first stereotaxic part, and the other end is the stereotaxic unit. The inner bushing corresponding to the inner bushing, and at least one convex portion is provided on the inner side surface of the inner bushing, and the inner bushing is rotatably fitted, and the convex portion is provided in the slide groove of the inner bushing. An outer bush positioned, a spring provided between the inner bush and the outer bush, wherein the convex portion of the outer bush is held by the first localization portion or the second localization portion of the slide groove, and one end thereof Inner bush An outer tube fixed to the lower half, and a plurality of stereotaxic holes are provided along the axial direction of the outer tube, and are provided in the inner bush and the outer tube so as to be adjustable. In an adjustable ball game net frame comprising an inner tube corresponding to a stereotactic projection, when the convex portion is positioned at the first stereotaxic portion of the slide groove of the inner bush by rotating the outer bush The localization protrusion of the localization unit is detached from the localization hole of the inner tube, and when the convex portion is positioned in the second localization portion of the slide groove of the inner bush, the localization unit of the localization unit A protrusion engages with the stereotaxic hole of the inner tube, whereby the inner tube can be expanded and contracted by adjusting the outer tube.

According to the adjustable ball game net frame of the present invention, the outer bush is composed of an upper half portion and a lower half portion, and the convex portion is provided on an inner surface of the upper half portion of the outer bush. A grip portion is provided on an outer surface of the lower half portion of the outer bush.

According to the adjustable ball game net frame of the present invention, a reinforcing ring is fitted in the upper half of the outer bush.

According to the adjustable ball game net frame of the present invention, the reinforcing ring is made of an aluminum alloy.

According to the adjustable ball game net frame of the present invention, the slide groove of the inner bush is composed of a vertical groove step and a horizontal groove step, is L-shaped, and the first localization portion is at the end of the horizontal groove step. It is provided in the side surface which adjoins, The said 2nd localization part is provided in the upper end of the said vertical groove step, It is characterized by the above-mentioned.

According to the adjustable ball game net frame of the present invention, an annular protrusion is provided on the outer surface of the lower half of the inner bush, an annular shoulder is provided on the inner surface of the outer bush, and the spring is provided in the annular shape. It is provided between the projection and the annular shoulder.

According to the adjustable ball game net frame of the present invention, at least one positioning rib having elasticity is provided in the lower half portion of the inner bush, and the positioning rib has an engaging projection protruding inward. Provided, at least one engagement hole is provided at an end of the outer tube, and the engagement hole engages with the engagement protrusion.

According to the adjustable ball game net frame of the present invention, the height can be adjusted smoothly.

It is a schematic diagram of a conventional ball game net frame. It is a sectional view of a part of a conventional ball game net frame. 1 is an exploded perspective view of an adjustable ball game net frame according to an embodiment of the present invention. It is a perspective view of a combined state of an adjustable ball game net frame of one embodiment of the present invention. 1 is a side view of an adjustable ball game net frame according to an embodiment of the present invention. It is sectional drawing of the combined state of the net frame for adjustable type ball games of one Embodiment of this invention. It is a side view of an adjustable ball game net frame of one embodiment of the present invention, and shows the operation state of an outer bush. 1 is a cross-sectional view of an adjustable ball game net frame according to an embodiment of the present invention, showing a state in which an outer bush is operated. It is sectional drawing of the net frame for adjustable ball games of one embodiment of the present invention, and shows the state after adjustment. 1 is an exploded perspective view of an adjustable ball game net frame according to an embodiment of the present invention, and shows a state in which a reinforcing ring is fitted to an outer bush.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
First, FIG. 3 to FIG. 6 will be referred to. An adjustable ball game net frame according to an embodiment of the present invention is configured by combining an inner bush 20, an outer bush 30, a spring 40, an outer tube 50, and an inner tube 60.

The inner bush 20 is composed of an upper half and a lower half. The upper half has two recesses 21 corresponding to each other, and a stereotaxic unit 22 extending from the lower end of each recess 21 extends, and a stereotactic projection 221 is provided on the inner surface of the stereotaxic unit 22, and the upper half A slide groove 23 is provided on the outer surface of the slide groove 23. One end of the slide groove 23 is a first localization part 231, and the other end is a second localization part 232 corresponding to the localization unit 22. The slide groove 23 is composed of a longitudinal groove step 233 and a transverse groove step 234, has an L shape, the first localization portion 231 is provided on a side surface close to the end of the transverse groove step 234, and the second localization portion 232 is the longitudinal groove. Provided at the upper end of step 233. An annular protrusion 24 is provided on the outer surface of the lower half, and two localization ribs 25 having elasticity and corresponding to each other are provided in the vicinity of the annular protrusion 24, and each localization rib 25 extends inward. An engaging protrusion 251 is provided.

The outer bush 30 is composed of an upper half and a lower half. Two convex portions 31 corresponding to each other are provided on the outer surface of the upper half. On the outer surface of the lower half portion, two grip portions 32 extending outward and having an arcuate shape and corresponding to each other are provided. An annular shoulder 33 is provided on the inner surface of the outer bush 30, the outer bush 30 is rotatably fitted to the inner bush 20, and the convex portion 31 is located in the slide groove 23 of the inner bush 20.

The spring 40 is provided between the annular protrusion 24 and the annular shoulder 33, whereby the convex portion 31 of the outer bush 30 is held by the first localization portion 231 or the second localization portion 232 of the slide groove 23 of the inner bush 20. The

The outer tube 50 is hollow, and two engaging holes 51 corresponding to each other are provided at the upper end portion of the outer tube 50. Each engagement hole 51 engages with the engaging protrusion 251 of the localization rib 25 of the inner bush 20, whereby the outer tube 50 and the inner bush 20 can be localized.

The inner tube 60 is hollow, and its outer diameter is smaller than the inner diameter of the outer tube 50 and the inner bush 20. The inner tube 60 is provided with a plurality of localization holes 61 along the axial direction thereof, and is provided in the inner bush 20 and the outer tube 50 so as to be adjustable. The localization hole 61 corresponds to the localization projection 221 of the localization unit 22. .

By rotating the outer bush 30, when the convex portion 31 is positioned on the first localization portion 231 of the slide groove 23 of the inner bush 20, the localization projection 221 of the localization unit 22 is detached from the localization hole 61 of the inner tube 60, When the convex portion 31 is positioned on the second localization portion 232 of the slide groove 23 of the inner bush 20, the localization projection 221 of the localization unit 22 engages with the localization hole 61 of the inner tube 60, and thereby the inner tube 60. The outer tube 50 can be expanded and contracted by adjustment.

Next, the operation method and effect of the present invention will be described. Please refer to FIG. 5 and FIG. Before adjusting the expansion and contraction of the inner tube 60 with respect to the outer tube 50, the convex portion 31 of the outer bush 30 is positioned at the second localization portion 232 of the slide groove 23 of the inner bush 20, and at this time, the localization unit 22 of the inner bush 20. Is pressed against the convex portion 31 of the outer bush 30 and the positioning protrusion 221 of the positioning unit 22 to be pressed engages with the positioning hole 61 of the inner tube 60, so that the inner tube 60 is positioned relative to the outer tube 50.

Please refer to FIG. 7 and FIG. When adjusting the expansion and contraction of the inner tube 60 with respect to the outer tube 50, if the grip portion 32 of the outer bush 30 is gripped and turned downward while being pulled downward, as shown by the arrow in FIG. Slides from the second localization portion 232 of the slide groove 23 of the inner bush 20 to the first localization portion 231. At this time, the localization unit 22 of the inner bush 20 is not pressed against the convex portion 31 of the outer bush 30, and the localization unit 22 Due to its own elasticity, the localization protrusion 221 separates from the localization hole 61 of the inner tube 60, so that the inner tube 60 can be expanded and contracted with respect to the outer tube 50.

Please refer to FIG. 7 and FIG. After adjusting the total combined length of the outer tube 50 and the inner tube 60 to the required length, the grip 32 of the outer bush 30 is gripped and applied in reverse to the above operation, that is, the outer bush 30 is turned to an angle. The outer bush 30 is moved upward by the elastic force of the spring 40, whereby the convex portion 31 of the outer bush 30 slides from the first localization portion 231 of the slide groove 23 of the inner bush 20 to the second localization portion 232. At this time, the localization unit 22 of the inner bush 20 is pressed against the convex portion 31 of the outer bush 30, and the inner tube 60 is localized with respect to the outer tube 50.

In this way, the protrusion 31 provided on the outer bush 30 is aligned with the slide groove 23 provided on the outer surface of the inner bush 20 to change the position of the outer bush 30 relative to the inner bush 20 (that is, the inner bush 20 The projection 31 is moved to the first localization portion 231 or the second localization portion of the slide groove 23), and the inner tube 60 can be expanded and contracted with respect to the outer tube 50, and the outer tube 50 and the inner tube 60 can be expanded and contracted. After adjusting the total length of the combination, the outer tube 50 and the inner tube 60 can be localized, and the height of the ball game net frame can be adjusted smoothly.

As shown in FIG. 10, the upper half 34 and the lower half 35 of the outer bush 30 have different outer diameters, and a reinforcing ring 70 made of aluminum alloy is provided on the outer surface of the upper half 34 having a smaller outer diameter. May be. If it does so, the structural strength of the outer bush 30 will increase and the lifetime of the outer bush 30 can be extended.

The present invention can be applied to a ball frame for ball games.

10: Ball frame for ball game, 11: Inner tube, 12: Outer tube, 13: Positioning tool, 20: Inner bush, 21: Recess, 22: Positioning unit, 23: Slide groove, 24: Circular protrusion, 25: Positioning rib , 30: outer bush, 31: convex part, 32: grip part, 33: annular shoulder part, 34: upper half part, 35: lower half part, 40: spring, 50: outer tube, 51: engagement hole, 60 : Inner tube, 61: stereotactic hole, 70: reinforcing ring, 111: stereotactic hole, 121: stereotactic hole, 131: stereotactic convex part, 221: stereotactic projection, 231: first stereotaxic part, 232: second stereotaxic part, 233 : Vertical groove step, 234: horizontal groove step, 251: engaging protrusion.

Claims (7)

The upper half is composed of a lower half, and at least one recess is provided in the upper half, and a stereotaxic unit extending from the lower end of the recess extends, and a stereotactic projection is provided on the inner surface of the stereotactic unit. A slide groove is provided on the outer side surface of the upper half, and the slide groove has an inner bush whose one end is a first localization portion and the other end is a second localization portion corresponding to the localization unit;
At least one convex portion is provided on the inner side surface, the outer bush is rotatably provided on the inner bush, and the convex portion is positioned in the slide groove of the inner bush. The inner bush and the outer bush A spring that is provided between the first bushing and the projecting portion of the outer bush is held by the first or second localization portion of the slide groove;
An outer tube having one end fixed to the lower half of the inner bush;
A plurality of stereotaxic holes are provided along the axial direction, and are provided so as to be adjustable inside the inner bush and the external tube, and the stereotaxic holes include an internal tube corresponding to the stereotaxic projection of the stereotaxic unit. In the adjustable ball game net frame,
By rotating the outer bush, when the convex portion is positioned in the first localization portion of the slide groove of the inner bush, the localization projection of the localization unit is detached from the localization hole of the inner tube, When the convex portion is positioned at the second localization portion of the slide groove of the inner bush, the localization projection of the localization unit is engaged with the localization hole of the inner tube, thereby the inner tube. An adjustable ball game net frame that can be expanded and contracted by adjusting the outer tube. The outer bush is composed of an upper half and a lower half, and the convex portion is provided on an inner surface of the upper half of the outer bush, and on an outer surface of the lower half of the outer bush. The adjustable ball game net frame according to claim 1, wherein a grip portion is provided. The adjustable ball game net frame according to claim 2, wherein a reinforcing ring is fitted in the upper half of the outer bush. 4. The adjustable ball game net frame according to claim 3, wherein the reinforcing ring is made of an aluminum alloy. The slide groove of the inner bush is composed of a longitudinal groove step and a transverse groove step, has an L shape, the first localization part is provided on a side surface close to an end of the transverse groove step, and the second localization part is The adjustable ball game net frame according to claim 1, wherein the adjustable ball game net frame is provided at an upper end of the vertical groove step. An annular protrusion is provided on the outer surface of the lower half of the inner bush, an annular shoulder is provided on the inner surface of the outer bush, and the spring is provided between the annular protrusion and the annular shoulder. The adjustable ball game net frame according to claim 1, wherein the net frame is adjustable. The lower half of the inner bush is provided with at least one elastic positioning rib, and the positioning rib is provided with an engaging protrusion protruding inward, and an engagement hole is formed at the end of the outer tube. 2. The adjustable ball game net frame according to claim 1, wherein at least one is provided, and the engagement hole engages with the engagement protrusion.