JPH0717267U - Post stretch structure for sports net support - Google Patents

Abstract

(57) [Summary] [Purpose] To make it easy and convenient to adjust the height of the net and to ensure safety during the match. A rod-shaped member 11 is slidably and rotatably fitted in a tubular member 13, a guide groove 25 extending in the longitudinal direction is formed on an outer peripheral wall of the tubular member, and a direction intersecting the guide groove is formed. While forming an engaging groove 27 extending to the outside, a protrusion 21 engaged with the guide groove and the engaging groove is formed on the outer periphery of the rod-shaped member.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a post stretch structure for supporting sports nets such as Indiana, soft volleyball, and sepak takraw.

[0002]

[Prior art]

 In general, sports such as Indiana, soft volleyball, and sepak takraw are conducted using a badminton court, so the badminton net support posts are also diverted. The net height of each of these sports is as follows, and is different for each. Indiaka 2m (Men) 1.85m (Women) Soft Volleyball 2m Sepak Takraw 1.55m Badminton 1.55m Therefore, in order to match the net height of each eye above, badminton posts are used by adding grafts and the like.

[0003]

[Problems to be solved by the device]

 As described above, conventionally, the badminton post is treated by grafting or the like to adjust the net height, so that it takes time to support the net and the adjustment of the net height is complicated. Also, the connection between the badminton post and the graft could come off during the match, which was a safety issue. The present invention has been made in consideration of the above circumstances, and it is easy to adjust the height of the net and does not come off during the game, so it is possible to secure the safety. It is intended to provide a structure.

[0004]

According to a first aspect of the present invention, there is provided a sports net supporting post expanding / contracting structure, wherein a rod-shaped member is slidably and rotatably fitted to the tubular member to form the tubular member. A guide groove extending in the longitudinal direction is formed on the outer peripheral wall of the rod, and an engaging groove extending in a direction intersecting with the guide groove is formed, while the guide groove and the engaging groove are engaged on the outer periphery of the rod-shaped member. It is characterized in that a protrusion is formed.

Further, according to the second aspect of the sports net supporting post expansion / contraction structure of the present invention, a rod-shaped member is slidably fitted to the tubular member, and the rod is attached to the outer peripheral wall of the tubular member in the longitudinal direction. A plurality of adjustment holes are formed at intervals, while a reference hole is formed on the outer periphery of the rod-shaped member, and a pin is inserted from the adjustment hole into the reference hole to adjust the expansion and contraction.

[0006]

[Action]

 In the first configuration described above, the annular member is slid with respect to the rod-shaped member to expand and contract, the protrusion is moved along the guide groove, and the protrusion is engaged with the engagement groove, thereby forming a tubular shape. The expansion / contraction position of the rod-shaped member relative to the member is fixed. In the second configuration, the rod-shaped member is slid with respect to the tubular member, the reference hole and one of the adjustment holes are aligned with each other, and a pin is inserted from the adjustment hole into the reference hole to adjust expansion and contraction. .

[0007]

【Example】

 An embodiment of a sports net supporting post supporting structure according to the present invention will be described below with reference to the accompanying drawings. The first embodiment of the present invention is suitably applied to sports net supporting posts such as Indiana, soft volleyball, sepak takraw, badminton, etc., and as shown in FIGS. 1 and 2, a rod-shaped main post 11 and a covered cylindrical sub-portion. It has a post 13.

The main post 11 may be solid or hollow, and the under-floor insertion portion 19 is inserted into the insertion hole 17 formed in the floor surface 15 and is erected on both sides of the sports court. A pin 21 is provided on the outer periphery of the upper portion of the main post 11 and extends radially outward. The pin 21 may be screwed into the main post 11, fixed by welding or the like, or may be driven in and fixed.

The auxiliary post 13 is slidably and rotatably fitted to the main post 11, and a guide groove 25 extending in the longitudinal direction is formed on the outer peripheral wall thereof. Engagement grooves 27 are formed at a plurality of positions in the longitudinal direction of the guide groove 25, and the engagement groove 27 and the guide groove 25 are connected so that the pin 21 can move. The engagement groove 27 is formed in an L shape in order to ensure the engagement state with the pin 21 and ensure stability. A roller mounting groove 29 is provided at an upper end portion of the auxiliary post 13, and a roller 31 for tensioning a wire or a rope is axially supported in the roller mounting groove 29. 1 and 2 show an example of dimensions of each part of the sports net support post.

When the net height is adjusted by the above-mentioned sports net supporting posts, a pair of sports net supporting posts are erected on both sides of the coat so as to face each other, and the auxiliary post 13 is attached to the main post 11. And slide it to move the pin 21 along the guide groove 25. When the pin 21 reaches an appropriate height, the sub post 13 is rotated with respect to the main post 11 to move the pin 21 into the engaging groove 27. The sub-post 13 is fixed to the main post 11 by engaging the pin 21 with the L-shaped portion of the engagement groove 27. Then, a wire or rope is stretched on the roller 31 to adjust the net to a desired height.

As described above, according to the above-described embodiment, the sub-post 13 is slid with respect to the main post 11, and when the desired height is reached, the sub-post 13 is rotated with respect to the main post 11. Since the net height can be adjusted simply by engaging the pin 21 with the engaging groove 27, the adjustment of the net height is extremely easy and simple. Further, since the pin 21 surely engages with the engagement groove 27 formed in an L shape, it is possible to prevent the pin 21 from coming off the engagement groove 27 during the match and ensure safety. be able to.

FIG. 3 shows a second embodiment of the present invention, in which a main post 33 is formed in a tubular structure, and a guide groove 25 and an engagement groove 27 are formed in the main post 33. The sub-post 35 is formed in a rod shape and has the pin 21 below.

FIG. 4 shows a third embodiment of the present invention, in which the guide groove 25 A of the auxiliary post 13 extends to the lower end portion of the auxiliary post 13. Therefore, the pin 21 can be pulled out from the lower end of the guide groove 25A, and the auxiliary post 13 can be removed from the main post 11.

FIG. 5 shows a fourth embodiment of the present invention, in which an underfloor insertion portion 19 is provided in the lower portion of a main post 11A which is formed to be relatively short, and a pin 21 is provided in the upper portion of the main post 11A. . The auxiliary post 13A has a guide groove 25 and an engagement groove 27, and an insertion hole 39 into which the existing badminton post 37 can be inserted is provided at the upper end portion. That is, the auxiliary post 13A functions as an adapter.

FIG. 6 shows a fifth embodiment of the present invention, in which a stand 41 is attached to the lower portion of the main post 11B instead of the underfloor insertion portion. According to this embodiment, it is possible to stretch the net even in a coat having no insertion hole on the floor surface.

FIG. 7 shows a sixth embodiment of the present invention, which is an auxiliary post 13B (1,55m) for badminton sepak takraw, an auxiliary post 13C (2m) for Indiana men / soft volleyball, and an auxiliary post for Indiana girls. A secondary post suitable for various sports such as 13D (1,85 m) is prepared, and it can be fitted to the main post 11 to obtain a desired net height.

FIG. 8 shows a seventh embodiment of the present invention, in which the main post 11C has a single reference hole 43 formed in the upper portion thereof, and the sub-posts 13E are provided with an interval in the longitudinal direction. It has a plurality of adjusting holes 45. The height of the net is adjusted by aligning the reference hole 43 with one of the adjustment holes 45 and inserting the pin 47 into the reference hole and the adjustment hole 45. A bolt may be used instead of the pin 47.

The tips of the pins 21 and 47 may be provided with a handle 49 for securing safety (FIG. 9 (A)) or may be screwed with a wing nut 51 (FIG. 9 (B)). ), And may be bent in a hook shape (FIG. 9 (C)).

When bent in a hook shape, the pins 21 and 47 can be used as substitutes for hooks for binding the net. The same effects as those of the first embodiment are also obtained in the second to seventh embodiments.

[0020]

[Effect of device]

 As described above, in the sports net supporting post expanding / contracting structure according to the present invention, a rod-shaped member is slidably and rotatably fitted to the tubular member, and a guide extending in the longitudinal direction is provided on the outer peripheral wall of the tubular member. While forming the groove and the engaging groove extending in the direction intersecting with the guide groove, the guide groove and the protrusion engaging with the engaging groove are formed on the outer periphery of the rod-shaped member, so that the cylindrical shape is formed. The net height can be adjusted very easily and simply by sliding the member relative to the rod-shaped member, moving the protrusion along the guide groove, and engaging the engaging groove. Further, since the protrusion is securely engaged with the engagement groove, it is possible to prevent the protrusion from coming off during the match and ensure safety.

[Brief description of drawings]

FIG. 1 is an overall configuration diagram showing a first embodiment of a sports net supporting post expansion / contraction structure according to the present invention.

2 (A) is a front view showing the sports net supporting post expanding / contracting structure shown in FIG. 1, and FIG. 2 (B) is a side view.

FIG. 3 is a configuration diagram showing a second embodiment of the present invention.

FIG. 4 is a configuration diagram showing a third embodiment of the present invention.

FIG. 5 is a configuration diagram showing a fourth embodiment of the present invention.

FIG. 6 is a block diagram showing a fifth embodiment of the present invention.

FIG. 7 is a block diagram showing a sixth embodiment of the present invention.

FIG. 8 is a configuration diagram showing a seventh embodiment of the present invention.

FIG. 9 shows a structure of a tip portion of a pin in an embodiment of the present invention, (A) is a case where a handle is attached, (B)
Shows a case where a wing nut is attached, and (C) shows a case where it has a hook shape.

[Explanation of symbols]

 11 Main Post 13 Secondary Post 15 Floor 17 Insertion Hole 19 Underfloor Insertion 21 Pin 25 Guide Groove 27 Engagement Groove 29 Roller Mounting Groove 31 Roller

Claims (2)

[Scope of utility model registration request] 1. A rod-shaped member is slidably and rotatably fitted in a tubular member to form a guide groove extending in a longitudinal direction on an outer peripheral wall of the tubular member, and in a direction intersecting with the guide groove. A stretchable structure for a sports net supporting post, wherein an extending engaging groove is formed, and a protrusion engaged with the guide groove and the engaging groove is formed on the outer periphery of the rod-shaped member. 2. A rod-shaped member is slidably fitted in the tubular member, and a plurality of adjustment holes are formed in the outer peripheral wall of the tubular member at intervals in the longitudinal direction, while the outer periphery of the rod-shaped member is formed. A post net expansion / contraction structure for supporting a sports net, characterized in that a reference hole is bored in the post and a pin is inserted from the adjustment hole into the reference hole for expansion / contraction adjustment.