JP6875786B1 - Freely adjust altitude Lifting device Badminton net support - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a multi-competition badminton net support for elementary and junior high schools. SOLUTION: A badminton net support post with a height of 141.925 cm for junior high school 1st graders and a badminton net support for 2nd graders of 148.785cm is added to the badminton net multi-role post, and the altitude can be freely adjusted. Is expanded with multi-competition functions. In addition, by providing 10 altitude adjustment holes at 5 cm intervals on the multipurpose extension support, the altitude can be freely adjusted, and it can be used for multiple competitions on simple badminton support other than the badminton support. [Selection diagram] Fig. 5

Description

The present invention relates to sports competition equipment, badminton net support equipment, and columns.

My invention was registered as a patent on June 19, 2015 (June 19, 2015) under the invention name of "Badminton net multi-role post height adjustment method".
As a technology, the badminton net support has been improved, the height of the support has been changed to multiple stages, a 6-stage part for elementary school students has been added, and a single item can be used for multiple purposes. Role post.

In addition, the net support of badminton on the general market has the technology to extend from the badminton altitude of 155 cm, but since it has a one-step 135 cm adjustment function to 155 cm or less, it does not have the altitude of multi-stage support for elementary school students and junior high school students.
In addition, most of the net struts that extend to other competitions are grafted with multipurpose extension struts above the badminton struts. The floor hole insertion type multipurpose extension support is extended to a height of 195 cm.

Patent No. 5763854 Japanese Patent Application Laid-Open No. 9-173519 Actual Kaihei 7-017267

Toei Light Prop ~ Badminton / Soft Valley / Multipurpose ~ | For floor fitting work, ball-proof net, flooring maintenance, and flooring work, Shiratori Co., Ltd. (yukakanagu.com) "Rakuten Ichiba" Soft Valley Auxiliary Support Mail Order --Genre Top List search.rakuten.co.jp › search › mall › Soft Valley + Supplement

The problem to be solved is that the badminton net multi-role post of my previous application Patent Document 1 corresponds to the height and age from the first and second grades of junior high school about 6 steps height for elementary school students and 1 step for adults in total 7 steps. I've been asked if I want a height net.
In addition, there was an opinion that the resistance bending strength was weakened by the whole board route cut into the outer tube support of the badminton net multi-role post of my previous application, and the support was weak for soft volleyball, mini volleyball, Indiaca, etc. Has been done.
Further, Patent Document 2 Japanese Patent Application Laid-Open No. 09-173519 describes that the structure of the net fixture and the rod fixture is too complicated, so that the manufacturing cost is high. If the structure is too complicated, the durability is not excellent.
Further, in the post telescopic structure for supporting the sports net described in Patent Document 3 Jitsukaihei 07-017267, the height adjustment method such as fixing by inserting bolts and pins into a plurality of adjusting holes and adjusting the expansion and contraction is too complicated for elementary school students. I think that the resistance bending strength is weak due to the opening of multiple guide grooves and engagement grooves in the auxiliary post of the adjustment device.
Furthermore, Non-Patent Document 1 is provided, and the badminton and the net support for other competitions are the one-step badminton 155 cm one-step altitude only support, which is not suitable for elementary school and junior high school.

In order to lock the inner pipe of the double pipe of a general commercially available vertical adjustment badminton net strut by using an eccentric roller, there is also a locking technique in which a rectangular opening is cut in the outer pipe wall and the eccentric roller directly presses the inner pipe.
However, since the contact surface between the semi-circular roller and the inner pipe strut is small, the locking performance is weak, or after many years of use, rust occurs due to surface wear of the inner pipe strut.
In addition, a rectangular stopper molded from plastic such as polyamide is used between the eccentric roller and the inner tube strut, which is loosened for locking and unlocking operations, and the inner tube strut is pulled out from the outer tube strut and is a stopper when reinserting. The inner surface angle of the upper end of the pipe is fixed, making it difficult to insert, and there is a risk that the stopper will fall into the outer pipe column.
Furthermore, most importantly, there was no multi-step function corresponding to the growth stage of elementary and junior high school students.

Non-Patent Document 2 "Rakuten Ichiba" Soft Valley Auxiliary Strut Mail Order --There are many multipurpose extension strut advertisements as shown in the genre top list, but it can be extended to the maximum point of 195 cm for 7-step adjustment of floor hole insertion type extension strut. However, it was not possible to provide three steps of 200 cm (height used for soft volleyball) for Indiaca competition and 215 cm and 225 cm altitude.
In addition, the multipurpose strut attached to the top of the 40mm diameter badminton strut can adjust the height in 6 steps: 1800, 1850, 2000, 2050, 2100, 2150mm, but it can be used for advanced Indiana competitions.
However, the outer tube strut of the product of the present invention is set low based on the height of the first grader, and there is a problem that it cannot be dealt with due to the characteristics of the outer diameter 33 mm inner tube strut with a length of 53.975 cm at the top.

In view of the above-mentioned opinions of the users, the present invention was examined by the present inventors, and in my 2015 registration of Patent No. 5763854 (also submitted as a prior document this time) << Application There is a description in paragraph 0043 of "Also, it is possible to add one step height to the junior high school student section from the above 7-step adjustment device. However, considering the transition period for junior high school students to become adults physically, psychologically and technically. , You may use it by adding only one step for middle school 1. ”≫ This time, we added two steps, a height for junior high school 1st grade and a height for junior high school 2nd grade, to the badminton net multi-role post.
The altitude of the present invention is freely adjusted.
For badminton competition, 2 steps of altitude 141.925 cm 1 step for 1st grade junior high school and 148.785 cm 1 step for 2nd grade junior high school are added, and 9 steps of altitude can be freely raised and lowered from 1st grade to adults with one set support. And
In the freely adjustable elevating device, a 9-step height adjustment localization horizontal line and one vertical center line in the axial direction are provided on the vertical slide inner pipe support, and are provided at the intersection of the horizontal line and the vertical center line and the upper end of the outer pipe support. It is equipped with a method of determining the three-point alignment fixed position of the center line.
A badminton net stanchion is provided that features a freely adjustable altitude lift.

Eight altitude adjustment localization lines for competitions such as ball games, soft volleyball, and Indiaca are engraved on the back of the altitude adjustment localization line for badminton of the inner tube support.
In addition, it has a multi-purpose extension strut below the badminton strut, which can be used for various sports such as Indiaca in soft valley and mini valley by grafting.
In addition, the floor surface of the multipurpose extension column is provided with 10 adjustment holes at 5 cm intervals to increase the lifting function.
It features a freely adjustable altitude lift badminton net stanchion.

≪Actually, the one-touch lock technology using an eccentric roller has been applied to a wide range of life in the last 100 years, and with that hint, it is applied to various industrial fields, and the inner tube of the double tube is used with an eccentric roller. It was also developed for locking technology. It is the patent system that promotes new technological development. ≫
The free elevating adjustment device
A rectangular opening is cut open in the outer tube wall of the column, and the inner tube is locked by the one-touch lock method by passing through the cut using an eccentric roller and pressing the stopper.
Guard rails are provided on both ends of the rectangular cut end in the longitudinal direction of the outer pipe column, and the entrance has a wide, downwardly narrow funnel-like shape.
The one-touch lock has a stopper provided in a rectangular opening that is cut open in the outer tube support, and has.
The inner surface layer of the stopper is chamfered on the inner surface side of the upper end in the axial direction of the rectangle, and the outer layer lid is designed in a two-step shape with a reverse taper shape.
The altitude can be adjusted freely, and the badminton net support can be configured.

Freely adjusting the altitude of the present invention The badminton net strut can be equipped with the free elevating adjustment device, one-touch lock, and multipurpose extension strut. By applying it to various kinds of competitions, it is possible to omit the production of individual columns depending on the competition, save the cost of manufacturing, and save the user economically.

The altitude-adjustable elevating device badminton net prop of the present invention can make badminton more enjoyable by providing a good badminton environment for the first and second graders of junior high school, and the number of junior high school badminton athletes can be greatly increased. It is also effective in popularizing badminton.
Further, in the present invention, since the outer pipe support uses the metal pipe having a diameter of 40 mm and a wall thickness of 3.5 mm as it is, there is no risk of breaking or bending. Soft volleyball and mini volleyball can be used safely in Indiaca competitions.
In addition, it can be adjusted up and down in multiple stages by using a multi-purpose extension strut, which can be enjoyed by ball games, soft volleyball, mini volleyball, and Indiana players. It also plays a role in promoting sports and the health of the people.

FIG. 1 is an explanatory view showing a total height of 9 steps of 7 steps of the previously invented column and 2 steps added this time. (Example 1) FIG. 1-2 is a 6-stage altitude setting diagram of a sports net strut for other than badminton. (Example 1) FIG. 2 is a diagram showing the design of a 9-step altitude adjustment localization line above and below the inner pipe column. (Example 2) Fig. 2-2 is an explanatory diagram of the 9-step altitude adjustment localization line of the inner pipe strut, the 9-step age-step engraved characters, and other competition altitude adjustment localization line settings. (Example 2) FIG. 3 is an explanatory view of the outer pipe support design. (Example 3) FIG. 3-1 is an explanatory diagram of the configuration of the lock portion of the one-touch lock. (Example 3) Fig. 3-2 is an explanatory diagram of the roller part design of the one-touch lock of the height up / down adjustment device. (Example 3) FIG. 4 is an explanatory view of an enlarged outer diameter of the completed column. (Example 4) FIG. 5 is an explanatory diagram of a 9-stage advanced configuration of badminton net columns according to the growth stage of school children. (Example 4) FIG. 6 is an explanatory diagram of the multipurpose extension strut design. (Example 4) Fig. 6-2 is an explanatory diagram of the altitude configuration of other competition net columns (Example 4).

The altitude freely adjusting elevating device badminton net strut according to the embodiment of the present invention is carried out in 11 drawings, and the height setting of the strut, the inner pipe strut portion, the outer pipe strut portion, and the completed strut / expansion function portion are implemented. It is divided into four parts with (multipurpose extension strut design), and the first embodiment describes the height setting of the strut in FIGS. 1 and 1-2. The second embodiment shows the design of the inner pipe strut portion in FIGS. 2 and 2-2. The third embodiment shows the design of the outer pipe strut portion in FIGS. 3, 3-1 and 3-2. In the fourth embodiment, the function of the height of the completed strut portion or the multipurpose extension strut of FIGS. 6 and 6-2 will be described with reference to FIGS. 4 and 5.
In the following description of Example 1, first, the 9-step height setting of the badminton competition will be described in FIG. 1, and the other dual-purpose competition strut altitude settings will be described in FIG. 1-2. After that, the No. 10 inner pipe strut portion of FIGS. 2 and 2-2 will be described in Example 2, and then the No. 24 outer pipe strut portion of FIG. 3 and the one-touch lock portion and roller portion of FIG. 3-1 will be described in Example 3. Finally, in Example 4, FIGS. 4 and 5 and 6 and 6-2 will be described.

上表のように６歳・７歳・８歳・９歳・10歳・11歳・12歳・13歳・成人とバドミントンネット支柱の差同じ10.125cmとなって、差別をなくし、どうなの年齢の子供にも関わらずバドミントンの全般フライトを正確打つ事出来る。 Figure 1 is based on the conventional 155 cm high badminton net support, and two steps are added again to the 7-step high badminton net multi-role post, and as shown in Figure 1, No. 7 is suitable for the average height of the first grade of junior high school. A badminton net support with a height of 141.925 cm and a height of 8th 148.785 cm, which is suitable for the average height of second-year junior high school students, is added, and the height is adjusted by 9 steps up and down.
For the badminton competition, we submitted a list of altitudes for each badminton net strut that can adjust the altitude in 9 steps using the free elevating adjustment device.

As shown in the table above, the difference between 6 years old, 7 years old, 8 years old, 9 years old, 10 years old, 11 years old, 12 years old, 13 years old, adult and badminton net support is the same 10.125 cm, eliminating discrimination and what age Despite being a child, he can accurately hit general flights of badminton.

In Fig. 1-2, set the altitude of the other competition support that is also used.
When the elementary school gymnasium is open to society, it is necessary to extend the badminton support in multiple stages above the altitude of the badminton support for other sports.
In this application, the length of the outer tube strut is shortened based on the height of the first grader, and it cannot be extended by 185 cm or more. Therefore, the multipurpose extension strut currently on the market cannot be used due to the characteristics of the present invention. It is decided to make a multipurpose extension strut corresponding to the present invention with a hint of technology.

I will explain the altitude at which a 155 cm altitude strut was attached to the multipurpose extension strut P and the altitude free elevating adjustment device was used. (P is the symbol of the multipurpose extension support in Fig. 6 below.)
As shown in the figure, the meaning with the letter P is the height display number after installing the multipurpose extension support P, and the one without P is the altitude number that can be used as it is with the badminton support.
P225 is also at an altitude of 225 cm in Indiaca competition stanchions, P215 is 215 cm height stanchion for Indiaca, P200 is 200 cm height stanchion for soft volleyball and mini volleyball competition, P185 is 185 cm height stanchion for Indiaca competition, P180 Is a 180 cm high strut for soft volleyball and mini volleyball competitions, and No. 135 is a 135 cm high strut for ball game competitions. (135 is a multipurpose extension strut that does not use badminton strut itself can be extended.)

An embodiment will be described for the configuration of the inner pipe support portion 10 of FIG. 2. FIG. 2-1 of FIG. 2 shows the 9 of the inner pipe support based on the actual size and the reference height of the 9-age stage support shown in the above table. The length of the inner pipe strut is determined by setting the step height adjustment localization point and the sliding range of raising and lowering the inner pipe strut.
Regarding the structure of the inner pipe strut part 10, as shown in Fig. 2-1 of Fig. 2, the outer diameter of 10 is a little less than 33 mm (because the inner pipe strut needs to be loosened a little to slide up and down in the outer pipe strut with an inner diameter of 33 mm).
The u shown in 2-1 is attached to the outside of the tip of the inner pipe strut as a protective guard for the strut head 20, and may be screw-fixed by arc welding, laser welding, oxygen welding, or the like (sample of metal outer pipe).
In the enlarged view of 2-2 of Fig. 2, the head of the No. 20 strut and the outer diameter of the outer pipe strut are the same, and the net lobe groove No. 21 is currently provided according to the structure of the strut, and inside the inner pipe strut. An insertion portion 22 is provided.

As shown in 2-3 of FIG. 2, insert 22 of the head of the 20th column into the inner tube column 10 and fix it to the inner tube column using the screw L. Flatten the head of the screw and the outer wall of the inner tube. The strut head 20 and the head guard u are fixed side by side, and the inner pipe strut becomes the part of the hand grip when adjusting the elevation.
In 2-4 of Fig. 2, a 9-step altitude adjustment localization line is provided on the semicircular surface of the inner tube strut at one end of the net lobe groove 21 in the axial direction from the first grade of elementary school to the height for adults. Set the lower end of the guard u to the adjustment localization line 11 for the 1st grade 6 years old, down analogy 7 years old 12th, 8 years old 13th, 9 years old 14th, 10 years old 15th, 11 years old 16th, junior high school 1 A total of nine horizontal half-circle altitude adjustment localization lines were engraved: No. 17 for 12-year-old graders, No. 18 for 13-year-olds in middle school 2, and No. 19 for adults.
In addition, a vertical center line No. 23 is provided in the central axis direction of the 9-step elevating adjustment range provided on the inner pipe column, and the left and right sides of the coat 2 are aligned with the center line No. 29 attached to the upper end port of the outer tube column, which will be described later. Net lobe groove 21 of this support becomes a straight line.
The altitude of each of the 11th to 19th 9th steps of the adjustment localization line is separated + the basic altitude of the floor part 24 of the outer tube support, which will be described later, is higher for each of the 9 steps of the badminton support from the first grade of elementary school 6 years old to adults. These are the heights listed in the step-by-step height list of the badminton net columns in the previous paragraph 0016.

In addition, the age of use is engraved on each of the nine altitude adjustment localization lines provided on the inner tube column so that the role of each can be easily understood. As shown in 2-2-1 of Fig. 2-2, the letters 11-2, 6 years old, are engraved on the lower line 11 of the guard u of the strut head 20 (the 11th localization line is the guard u). A 6-year-old character was engraved on the guard u surface to fit the inner tube support.) Down analogy 12-2 7-year-old on 13-2 8-year-old on the 12th localization line 12. It was engraved with 14-2 9 years old, 15-2 10 years old, 16-2 11 years old, 17-2 12 years old, 18-2 13 years old, 19-2 adult.

2-2-2 As shown, another competition altitude localization adjustment line is provided on the opposite side (back side) of the badminton competition adjustment line surface, and the half-circle line of the badminton competition adjustment localization and the half-circle line of the other competition altitude adjustment localization are provided. You can check. Since 135 cannot be used as a multipurpose extension strut, it will go around the altitude adjustment localization line.
As shown in 2-2-3, one vertical center line within the adjustable range of the altitude adjustment localization line was engraved 23. The function is to align the net lobe groove 21 of the two pillar heads 20 on the left and right of the coat in a straight line.
Eight steps of altitude adjustment from top to bottom for multi-competition use Horizontal line engraved, P180 for soft valley / mini volleyball competition support 180 cm altitude adjustment, P185 for Indiaca competition support 185 cm altitude adjustment, P200 Soft volleyball / mini volleyball competition support 200 cm altitude adjustment, 135 for ball game competition support 135 cm altitude adjustment, P215 for Indiaca support 215 cm altitude adjustment, P225 for Indiaca competition support 225 cm altitude adjustment For, No. 185 without the letter P is for adjusting the altitude of the Indiaca competition support 185 cm, and No. 180 without the letter P is for adjusting the altitude of the soft volleyball / mini volleyball competition support 180 cm.
There are two ways to adjust the altitude of other competitions, and by extending the badminton strut itself to a maximum of 185 cm, the 185, 180, and 135 can be used without using the multipurpose extension strut. (Altitude adjustment localization line is in increments of one round)
P225, P215, P200, P185, and P180 are for the case where the multipurpose extension support P is attached to the badminton support. (Altitude adjustment localization lines are inscribed in half circumference) Eight altitude adjustment localization lines were engraved as shown in 2-2-3 of Fig. 2-2. Numbers may be engraved on each line. (Not shown)

The embodiment for the configuration of the outer pipe support according to 3-1, 3-2, 3-3-3, 3-4 in Fig. 3 will be explained. First, 3-1 in Fig. 3 will be set and the outer pipe support will be explained. The above-floor part of the pipe column shall have a foundation altitude of 24. (The underfloor part is outside the calculation of the column altitude.)
According to the regulation that the outer diameter of the badminton net strut is 40 mm and the wall thickness is 3.5 mm, the outer pipe strut 24 is designed according to the height applicable to the average height of a 6-year-old child. Set values of W, total length 116.025 cm, outer diameter 40 mm, wall thickness 3.5 mm, inner diameter 33 mm, set the altitude of 101.025 cm on the floor as the basic altitude 24, and increase the basic altitude 24 of the outer pipe support on the floor + Height adjustment of the inner pipe support The height of the localization line is the height of the badomin support (height on the floor).
For the plug-in type support under the floor, the insertion part No. 30 was provided under the floor with a length of 150 mm, but since the gymnasium also has the depth of the embedded metal fittings of 150 mm, 200 mm, 250 mm, etc., the length depends on the depth of the embedded metal fittings. Can be designed.

Next, the lock localization point No. 25 to be attached to the No. 24 strut outer pipe according to 3-2 in Fig. 3 is provided, and a rectangle of 30 mm x 20 mm with 15 mm each in the vertical direction from the 25 center point and 10 mm each in the horizontal and horizontal directions. Cut open the mouth 25-1, and use the sample outer tube wall to make a rectangular stopper 26 that is slightly smaller than the 25-1 rectangular mouth. It's an event.
Next, the structure of the outer pipe column will be described in 3-3 of FIG. As shown in the figure, a commercially available net lobe fixing device cleat 27 is attached from the upper end edge of the outer tube column to the bottom, and one-touch lock No. 28 is attached at an appropriate distance below it. The structure of the one-touch lock will be described in detail in FIGS. 3-1 and 3-2, which will be described later.
3-4 of Fig. 3 is the front view of No. 27 cleat and No. 28 one-touch lock, and the inner pipe strut can be slowly lowered by the action of the air cushion by attaching the rubber wrap W to the upper end opening of the outer pipe strut. If the high support is unlocked with a one-touch lock, the inner tube support may drop sharply, causing hand injuries to elementary school students. Rubber bakin W is required for safety.
In addition, a white vertical center line No. 29 was drawn at the center of the black rubber bagin W in the axial direction. Align 29 with the vertical center line No. 23 of the inner pipe column, and align the axial direction of the net lobe groove 21 on both sides of the coat.

An embodiment of the structure of the lock portion of the one-touch lock will be described with reference to FIG. 3-1.
As shown in Fig. A, the edge of the upper end of the stopper 26 in the inner surface axial direction is chamfered so that this slope is 31, which facilitates reinsertion after the inner pipe support 10 is pulled out from the outer pipe 24.
Subsequently, an embodiment of the lock portion 26-32 will be described with reference to FIG. Using the material of the outer tube support, cut 32 pieces of a rectangle of 30 mm x 20 mm, leave the inner surface of 32 as it is, and cut the convex shape of the outer surface flat. It becomes invariant in the short axis direction, the inner surface of 32 and the outer surface of 26 are joined and fixed, and the lock part is 26-32. A front view of 26-32 in Fig. C and a front perspective view of 26-32 in Fig. D are shown. For example, 26-32 may be manufactured using hard reinforced plastics such as polyamide other than metal.
Next, regarding Fig. E, 26-V is attached to both sides of the cut end 25-1 of the outer pipe column in the long axis direction, and the shape is like a funnel, the upper opening is wide, the lower is narrow, and the shape is 26-32. Exact match, even if the inner tube support is pulled out from the outer tube support, 26-32 can be prevented from falling into the outer tube 24. You can see the reverse taper front view of 26-32, which fits into the funnel shape of 25-1 and guard 26V formation like the vertical cross section of the outer pipe column in Fig. F.

Subsequently, the embodiment of the roller portion of the one-touch lock will be described with reference to FIG. 3-2.
Fig. 3-2 is drawn with a large number of parts drawings, and is distinguished from the Q, M, Z, S, X, Y, and K diagrams for distinction.
First, I will explain Fig. Q, No. 33 is the cross-sectional shape of the outer pipe support, 34 in Fig. M is a two-frame frame for attaching an eccentric half-rotation roller with a one-touch lock, and a thickness of 3-4 mm x 40 mm x 38 mm x two metal plates. Shaft hole 35 is drilled in, Z figure is the position shown in the frame plane, shaft hole 35 is drilled, and 34h is chamfered on both corners of the frame on the side to be attached to the outer tube support and the opposite side.
As shown in Fig. S, an eccentric roller 36 and a lever 37 are formed in an attributive form, and a shaft hole 25-2 is drilled in 36. G As shown in the figure, around the eccentric roller 36, the lock part 26n side is attached with a large, thin long lever 37 by the unlocking part 26t side, and when the lever 37 is raised or lowered, the unlocking part 36-t and the lock part 36- n changes position.
Y As shown in the figure, the eccentric roller 36 is thick and the lever 37 is thin.
As shown in Fig. X, assemble frame No. 34, and attach the 34-K side to the left and right sides of the guard 26v of 25-1 of the outer pipe column by welding. Eccentric roller No. 36 is set using shaft No. 38. In the locked state, 26-32 is slightly inside the pipe.
When the 37th lever is raised and turned half a turn, it goes inside the unlocking part 36-t to open a gap, 26-32 floats up, and the lock is unlocked.
As shown in the vertical cross-sectional view of Fig. K, lower the lever No. 37 and rotate it half a turn to enter the lock portion 36-n of the eccentric roller and strongly press the stopper portion 26-32 to lock the inner pipe column.

Subsequently, an embodiment of the completed drawing of the support column of FIG. 4 will be described. The 4-1 side view of Fig. 4 is an enlarged side view of the outer diameter, the locked state where the lever 37 is lowered by lowering to the head guard u of the inner pipe support, and the height of the support is 106.025 cm.
This is an adult badminton net support that is 9 steps higher than the front view of the 4-2 support and 4-1 in Fig. 4. R is the rubber lid at the bottom of the column.

上表のように小学1年生から中学2年生まで身長に適切なネット高さでバドミントン出来る。年令別支柱の高さによる、今まで小・中学生が、正確に打つ事出来ないようなフライトが、正しく打つ事が出来るようになり、楽しくバドミントンができて、希望者が増えって、小、中学校がバドミントンの部活動を成立する事になると、小、中学生のバドミントンとソフトバドミントン活躍者が大幅に増える。バドミントンの普及にも&#32363;がる
また、次代を担う子どもたちの心身の健全な発育・発達のために大きな役割を果たす。 As shown in Fig. 5, the bottom 1 is for the 1st grade, the 2 is for the 2nd grade, the 3 is for the 3rd grade, the 4th is for the 4th grade, the 5th is for the 5th grade, and the 6th is for the small grade. No. 6 and No. 7 are for middle school students, No. 8 is for middle school students, and No. 9 is for adults. The table below explains the breakdown of the constituent values of the 9-step height of the badminton net support that is adjusted up and down.

As shown in the table above, you can play badminton with a net height appropriate for your height from the first grade of elementary school to the second grade of junior high school. Due to the height of the pillars by age, it is now possible for elementary and junior high school students to hit the flight correctly, which makes it fun to play badminton, and the number of applicants increases. When junior high school establishes badminton club activities, the number of elementary and junior high school badminton and soft badminton players will increase significantly. It also contributes to the spread of badminton, and plays a major role in the healthy growth and development of children who will lead the next generation.

The structure of the multipurpose extension column will be described with reference to FIG.
In order to insert a badminton net support with an outer diameter of 40 mm inside the multipurpose extension support P, it is necessary to set the inner diameter of P to a little over 40 mm. The wall thickness of P is set to 4 mm to resist the collision force with the net such as soft volleyball. The outer diameter is 48 mm. Altitude 90 cm above the floor, 10 through 10 holes 5 cm above the floor, 61 through adjustment holes, fixed to the center of the adjustment range of the extension column P using one end metal fittings of the mooring chain 42, and the other end in the length direction is a lifting pin It is connected with 63.
Insert the lifting pin 63 into the 10th hole from the floor (at an altitude of 55 cm from the floor), the upper part of the 10th hole is the insertion part of the badminton strut, and the multipurpose extension strut to ensure the stability of the attached badminton strut. A one-touch lock 60 is attached to the upper part of P, and the structure is the same as that of the one-touch lock 28 implemented in FIGS. 3, 3-1 and 3-2.
In addition, the 10 pinning holes within the 55 cm range of this vertical adjustment can be grafted with a normal badminton strut at a height of 155 cm, and can be raised 10 steps from 165 cm to 5 cm to 225 cm, making it a simple badminton strut. Can be used for multiple competitions.
Multipurpose extension column The lower floor 64 has a length of 15 cm (a design that can be freely changed depending on the depth of the floor fittings) and an outer diameter of 40 mm.

各競技ネット支柱の高度は床面から上へ計算する。 At the altitude of the other competition net strut that was set in Fig. 1-2 of Example 1, the altitude of the 6-step adjustment localization line of other competition was set on the 2-2-3 inner pipe strut of Fig. 2-2 of Example 2. It was.
The following is an explanation based on Fig. 6-2 Altitude of other competition columns, and the altitude of the basic altitude + adjustment localization line is the desired altitude.
The basic altitude is the multipurpose extension support P adjustment altitude 55 cm + badminton outer pipe support 24 (including the altitude 15 cm of the lower floor 30) 116.025 cm = basic altitude 171.025 cm.

The altitude of each competition net support is calculated from the floor to the top.

If the badminton net support that adjusts the height of 9 steps up and down is commercialized, the badminton club activity in the school can be established by arranging the badminton net support that adjusts the height of 9 steps up and down at 20,095 elementary schools and 10,270 junior high schools all over Japan. Be sure. If the growth of children who will bear the future is important, it is an indispensable physical education equipment for elementary and junior high school students.
Furthermore, badminton is a common human culture in the world, and if the badminton net support that adjusts the height by 9 steps up and down is spread not only in Japan but also in the world, it will have a great economic effect due to the promotion effect of world badminton and innovation. Can also be expected.

1 1 to 9 are the altitudes of 9 steps of columns, 2 10 are the inner pipe columns, 3 u is the guard of the column head, 4 11 to 19 are the localization lines of 9 steps of altitude adjustment, 5 20 is the head of the columns, 6 L is the fixing screw of the strut head, 7 21 is the net lobe groove, 8 22 is the insertion part into the inner pipe of the strut head, 9 23 is the vertical center line, and 10 11-2 to 19-2 are 9 adjustment localization lines. 6 years old, 7 years old, 8 years old, 9 years old, 10 years old, 11 years old, 12 years old, adult characters engraved on the top, 11 135 is the localization line for net altitude adjustment for ball games, 12 P180 is for soft valley Net altitude adjustment localization line, 13 P185 for Indiaca net altitude adjustment localization line, 14 P200 for soft valley net altitude adjustment localization line, 15 P215 for Indiaca net altitude adjustment localization line, 16 P225 for Indiaca net altitude adjustment localization line Adjustment localization line, 17 24 is the basic altitude (outer tube support height), 18 25 is the position point of the lock provided on the outer tube support, 19 25-1 is the rectangular opening cut into the outer tube support, 20 26 is the outside of the rectangle. Stopper made of pipe wall, 21 27 is net lobe fixing bracket cleat, 22 28 is one-touch lock, 23 W is rubber bakin, 24 29 is white vertical center line, 25 30 is insertion part into the floor bracket of the support, 26 R is the support Lower end rubber lid, 27 31 is a chamfered surface on the inner surface side of the upper end in the axial direction of stopper 26, 28 32 is a 25-1 reverse taper lid, 29 26-32 is a lock part that holds down the inner pipe column of 26 and 32 composite. 30 26V is the guard rail at both ends of the rectangular mouth, 31 33 is the cross-sectional view of the outer pipe support, 32 34 is the frame for attaching the semicircular eccentric roller, 33 34h is the side part where the outer pipe support is attached to the frame, 34 35 is the shaft hole, 35 36 Is a semi-circular eccentric ruler, 36 36n is a large side holding part of an eccentric roller, 37 36t is a lock unlocking part, 38 37 is a one-touch lock lever, 39 38 is a semi-circular eccentric roller shaft, 40 39 is a vertical cross section of a column. , 41 P is the multipurpose extension strut, 42 60 is the one-touch lock part of the multipurpose extension strut 43 61 is the hole of the 10-step lifting pin, 44 62 is the mooring chain, 45 63 is the lifting pin, 46 64 is the multipurpose Insertion part into the floor fitting of the extension support.

Claims (3)

Freely adjust altitude Lifting device Badminton net support
For badminton competition, 2 steps of altitude 141.925 cm 1 step for 1st grade junior high school and 148.785 cm 1 step for 2nd grade junior high school are added, and 9 steps of altitude can be freely raised and lowered from 1st grade to adults with one set support. And
In the freely adjustable lifting device, a 9-step altitude adjustment localization horizontal line and one vertical center line in the axial direction are provided on the vertical slide inner pipe support, and are provided at the intersection of the horizontal line and the vertical center line and the upper end of the outer pipe support. It is equipped with a method of determining the fixed position of the three points of the center line.
It features a freely adjustable altitude lift badminton net stanchion. The back of the altitude adjustment localization line for badminton of the inner tube strut according to claim 1 is engraved with eight altitude adjustment localization lines for competitions such as ball games, soft volleyball, and Indiaca.
In addition, it has a multi-purpose extension strut below the badminton strut, which can be used for various sports such as Indiaca in soft valley and mini valley by grafting.
In addition, the floor surface of the multipurpose extension column is provided with 10 adjustment holes at 5 cm intervals to increase the lifting function.
It features a freely adjustable altitude lift badminton net stanchion. Claim 1 Free-adjusting elevating device
A rectangular opening is cut open in the outer tube wall of the column, and the inner tube is locked by the one-touch lock method by passing through the cut using an eccentric roller and pressing the stopper.
Guard rails are provided on both ends of the rectangular cut end in the longitudinal direction of the outer pipe column, and the entrance has a wide, downwardly narrow funnel-like shape.
The one-touch lock has a stopper provided in a rectangular opening that is cut open in the outer tube support, and has.
The inner surface layer of the stopper is chamfered on the inner surface side of the upper end in the axial direction of the rectangle, and the outer layer lid is designed in a two-step shape with a reverse taper shape.
It features a freely adjustable altitude lift badminton net stanchion.

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