JP2023008027A - Singles stick for tennis - Google Patents

Abstract

To provide a singles stick for tennis that can be easily carried.SOLUTION: A singles stick 1 comprises pole units 5 and 6, a head part 22, and a leg part 39. The pole units 5 and 6 are extendably/contractibly formed of a plurality of poles 10, 11, 12, and 13. The head part 22 is provided on the pole 10 in an uppermost part, and a groove 22a to be engaged with a cord of a net is formed. The leg part 39 is provided on the pole in a lowermost part, and is installed on a court.SELECTED DRAWING: Figure 1

Description

The present invention relates to tennis singles sticks.

In general, tennis courts for singles and tennis courts for doubles are commonly used. However, the spacing of the netposts is different for singles and doubles. When a singles match is played on a tennis court for doubles, the height of the position corresponding to the net post for singles is lower than the predetermined height (1.07 m). Therefore, a singles stick is attached to the net at a position corresponding to the net post of the singles court, and the net is set at a predetermined height (1.07 m) (see Patent Document 1, for example).

JP 2003-250945 A

However, few tennis courts always have singles sticks, and it is necessary for court users to prepare their own singles sticks. In addition, the singles stick is formed long in order to push the net up to a predetermined height (1.07 m), making it difficult to carry the singles stick in, for example, a bag.

In view of the above problems, it is an object of the present invention to provide a tennis singles stick that can be easily carried.

In order to solve the above problems, tennis singles sticks are installed on tennis doubles courts. Also, the singles stick has a pole unit, a head, and legs. The pole unit is formed to be extendable by a plurality of poles. The head is provided on the uppermost pole among the plurality of poles and has grooves that engage with the cords of the net provided on the court. The legs are provided on the lowermost pole among the plurality of poles and installed on the court.

According to the tennis singles stick having the above configuration, it can be easily carried by reducing the size of the entire stick.

It is a front view showing a singles stick according to an embodiment. 1 is an exploded view showing a singles stick according to an example embodiment; FIG. FIG. 4 is an explanatory diagram showing a state in which the pole unit of the singles stick according to the embodiment is extended; FIG. 3A shows the first pole unit and FIG. 3B shows the second pole unit. FIG. 4 is an explanatory diagram showing a state in which the pole unit of the singles stick according to the embodiment is contracted; FIG. 4A shows the first pole unit and FIG. 4B shows the second pole unit. FIG. 10 is an explanatory diagram showing a state in which the singles stick according to the embodiment is installed; It is an explanatory view showing a method of installing a singles stick according to the embodiment.

An embodiment of a tennis singles stick will be described below with reference to FIGS. 1 to 6. FIG. In addition, the same code|symbol is attached|subjected to the member which is common in each figure.

1. Embodiment 1-1. Configuration Example of Singles Stick First, the configuration of a singles stick according to an embodiment (hereinafter referred to as "this example") will be described with reference to FIGS. 1 to 4. FIG.
FIG. 1 is a front view showing a singles stick, and FIG. 2 is an exploded view showing the singles stick.

A singles stick 1 shown in FIG. 1 is installed on a tennis court for doubles in a tennis match to play a singles match. As shown in FIG. 1, the singles stick 1 comprises a first pole unit 5 and a second pole unit 6. As shown in FIG. The first pole unit 5 and the second pole unit 6 are detachably connected.

As shown in FIGS. 1 and 2 , the first pole unit 5 has an upper first pole 10 and an upper second pole 11 . The second pole unit 6 also has a lower first pole 12 and a lower second pole 13 . Each pole 10, 11, 12, 13 is formed in a hollow cylindrical shape. Although an example in which the poles 10, 11, 12, and 13 are formed in a cylindrical shape has been described, the poles 10, 11, 12, and 13 are not limited to this, and may be formed in various cylindrical shapes such as a square cylinder, a hexagonal cylinder, or an elliptical cylinder. may

As shown in FIG. 1, the upper first pole 10 is the top pole of the singles stick 1 . As shown in FIG. 2 , a head portion 22 is provided at one axial end of the upper first pole 10 . The head portion 22 of the upper first pole 10 is the upper portion of the singles stick 1 in the vertical direction. A groove 22 a is formed in the head 22 . The groove 22a is recessed from the head portion 22 toward the other end portion of the upper first pole 10 in the axial direction. Further, the groove 22a passes through the center of the upper first pole 10 and extends in the diametrical direction. This groove 22a engages the cord 202 of the net 201 (see FIG. 5). Further, an installation line 21 is provided at an intermediate portion in the axial direction of the upper first pole 10 .

A fitting portion 23 is formed at the other axial end of the upper first pole 10 . The fitting portion 23 is open along the axial direction of the upper first pole 10 . An upper second pole 11, which will be described later, is inserted into the fitting portion 23. As shown in FIG. A first engaging hole 24 is formed in the vicinity of the fitting portion 23 at the other axial end of the upper first pole 10 . The first engaging hole 24 is a through hole penetrating from the inner wall to the outer wall of the outer peripheral surface of the upper first pole 10 . A first engagement pin 25 of the upper second pole 11 described later is removably inserted into the first engagement hole 24 .

The upper second pole 11 is thinner than the upper first pole 10 . A diameter-reduced portion 27 is provided at both ends of the upper second pole 11 in the axial direction. The diameter-reduced portion 27 is configured such that its outer diameter can be reduced toward the center in the radial direction. The reduced diameter portion 27 is reduced in diameter when inserted into the upper first pole 10 or the lower first pole 12 described above. Thereby, the connection work of each pole 10, 11, 12, 13 can be easily performed.

In addition, the reduced diameter portion 27 is provided with a spring that biases it radially outward. When the reduced diameter portion 27 is inserted into the upper first pole 10 or the lower first pole 12, it expands radially outward. As a result, after the upper second pole 11 is connected to the upper first pole 10 or the lower first pole 12, it is possible to prevent the upper second pole 11 from slipping out of the upper first pole 10 or the lower first pole 12. can.

Also, the upper second pole 11 is provided with a first engagement pin 25 and a second engagement pin 26 . The first engaging pin 25 is formed at one axial end of the upper second pole 11 , that is, at the end on the upper first pole 10 side. The second engaging pin 26 is formed at the other axial end of the upper second pole 11 , that is, at the end on the lower first pole 12 side.

The first engaging pin 25 and the second engaging pin 26 protrude radially outward from the outer peripheral surface of the upper second pole 11 . A biasing spring is provided on the inner side of the upper second pole 11 in the first engaging pin 25 and the second engaging pin 26 . The first engaging pin 25 and the second engaging pin 26 are biased radially outward by a biasing spring. Also, the first engaging pin 25 and the second engaging pin 26 move radially inward of the upper second pole 11 by being pressed.

Fitting portions 33 and 34 are formed at both ends of the lower first pole 12 in the axial direction. The fitting portions 33 and 34 are open along the axial direction of the lower first pole 12 . The first insertion portion 33 is formed at one axial end of the lower first pole 12 , and the second insertion portion 34 is formed at the other axial end of the lower first pole 12 . The upper second pole 11 is inserted into the first insertion portion 33 , and the lower second pole 13 is inserted into the second insertion portion 34 .

A second engagement hole 31 and a third engagement hole 32 are formed in the lower first pole 12 . The second engaging hole 31 is formed near the first fitting portion 33 at one axial end of the lower first pole 12 , and the third engaging hole 32 is formed at the other axial end of the lower first pole 12 . It is formed in the vicinity of the second insertion portion 34 at the part. The second engaging hole 31 and the third engaging hole 32 are through holes penetrating from the inner wall to the outer wall of the outer peripheral surface of the lower first pole 12 , like the first engaging hole 24 .

The lower second pole 13 is the lowest pole of the singles stick 1 . The second lower pole 13 is thinner than the first lower pole 12 . A reduced diameter portion 27 is provided at one axial end of the lower second pole 13 . Since the configuration of the diameter-reduced portion 27 is the same as that of the diameter-reduced portion 27 provided on the upper second pole 11, a description thereof will be omitted.

A leg portion 39 is provided at the other axial end portion of the lower second pole 13 . The leg portion 39 of the lower second pole 13 forms the lower portion of the singles stick 1 in the vertical direction. The legs 39 are placed on the tennis court 101 (see FIG. 5). As a result, the singles stick 1 stands on the tennis court 101 .

A third engagement pin 36 is provided in the vicinity of the diameter-reduced portion 27 at one axial end of the lower second pole 13 . The third engagement pin 36 protrudes radially outward from the outer peripheral surface of the lower second pole 13 . The configuration of the third engagement pin 36 is the same as that of the first engagement pin 25 and the second engagement pin 26 . The direction in which the first engaging pin 25, the second engaging pin 26, and the third engaging pin 36 protrude is parallel to the direction in which the groove 22a formed in the head portion 22 extends.

Here, the total length of the singles stick 1, that is, the length from the leg portion 39 to the groove 22a provided in the head portion 22 is set to 1.07 m, which corresponds to the height of the net post of a singles court. Also, the length from the leg portion 39 to the installation line 21 provided on the upper first pole 10 is set to 0.914 m, which corresponds to the length from the side line of the singles court to the net post.

3 is a diagram showing the state in which the first pole unit 5 and the second pole unit 6 are extended, and FIG. 4 is a diagram showing the state in which the first pole unit 5 and the second pole unit 6 are contracted. 3A and 4A show the first pole unit 5, and FIGS. 3B and 4B show the second pole unit 6. FIG.

As shown in FIG. 3A, the first pole unit 5 is configured by connecting a first upper pole 10 and a second upper pole 11 . The reduced diameter portion 27 of the upper second pole 11 is inserted into the fitting portion 23 of the upper first pole 10 . Then, the first engagement pin 25 of the upper second pole 11 is inserted into the first engagement hole 24 of the upper first pole 10, and the first engagement hole 24 and the first engagement pin 25 are engaged. As a result, it is possible to prevent the second upper pole 11 from coming off the first pole 10 and the first pole unit 5 from shrinking against the user's intention.

As shown in FIG. 3B, the second pole unit 6 is configured by connecting a lower first pole 12 and a lower second pole 13 together. The reduced diameter portion 27 of the lower second pole 13 is inserted into the second insertion portion 34 of the lower first pole 12 . Then, the third engaging pin 36 of the lower second pole 13 is inserted into the third engaging hole 32 of the lower first pole 12, and the third engaging hole 32 and the third engaging pin 36 are engaged. As a result, it is possible to prevent the lower second pole 13 from falling off from the lower first pole 12 and the second pole unit 6 from shrinking against the intention of the user.

By connecting the upper second pole 11 of the first pole unit 5 and the lower first pole 12 of the second pole unit 6, the singles stick 1 is assembled as shown in FIG. The reduced diameter portion 27 of the upper second pole 11 is inserted into the first insertion portion 33 of the lower first pole 12 . At this time, the upper second pole 11 can be easily inserted into the lower first pole 12 by reducing the diameter of the diameter-reduced portion 27 toward the center in the radial direction.

Furthermore, the second engaging pin 26 of the upper second pole 11 is inserted into the second engaging hole 31 of the lower first pole 12, and the second engaging pin 26 and the second engaging hole 31 are engaged. Also, the diameter-reduced portion 27 expands within each of the poles 10 and 12 due to the spring provided in the diameter-reduced portion 27 . As a result, it is possible to prevent disconnection of the upper second pole 11 and the lower first pole 12 against the intention of the user.

1-2. Method for Storing Singles Stick Next, a method for storing the singles stick 1 will be described.
First, the user presses the second engagement pin 26 to release the engagement between the second engagement hole 31 and the second engagement pin 26 . Then, the upper second pole 11 is pulled out from the lower first pole 12 . Thereby, the singles stick 1 can be divided into two members, the first pole unit 5 and the second pole unit 6 .

Next, the first engaging pin 25 is pressed to release the engagement between the first engaging hole 24 and the first engaging pin 25 . Then, the upper second pole 11 is pushed into the tubular hole of the upper first pole 10 . As a result, the first pole unit 5 can be contracted as shown in FIG. 4A. At this time, the diameter-reduced portion 27 is biased within the upper first pole 10 by the spring. As a result, it is possible to prevent the second upper pole 11 from being pulled out from the first upper pole 10 against the user's intention, thereby preventing the first pole unit 5 from extending.

Also, the third engagement pin 36 is pressed to release the engagement between the third engagement hole 32 and the third engagement pin 36 . Then, the lower second pole 13 is pushed into the tubular hole of the lower first pole 12 . Thereby, as shown in FIG. 4B, the second pole unit 6 can be contracted. At this time, in the second pole unit 6 , the reduced diameter portion 27 of the lower second pole 13 protrudes outward from the first insertion portion 33 of the lower first pole 12 . However, the third engagement pin 36 is inserted into the second engagement hole 31 and the third engagement pin 36 and the second engagement hole 31 are engaged. As a result, in the second pole unit 6 as well, it is possible to prevent the second pole unit 6 from being pulled out from the lower first pole 12 against the intention of the user and extending the second pole unit 6 .

As described above, according to the singles stick 1 of this example, the first pole unit 5 and the second pole unit 6 are formed by a plurality of poles 10, 11, 12, and 13, and are configured to be extendable, so that the singles stick 1 shown in FIG. And as shown in FIG. 4B, it can be put together compactly at the time of carrying. Also, by shortening the first pole unit 5 and the second pole unit 6, the total length of the singles stick 1 can be reduced to less than half the length (for example, 0.368 m) when used. As a result, the singles stick 1 can be stored in the user's bag, rucksack, or the like, and the singles stick 1 can be easily carried.

2. Method of Installing Singles Stick Next, a method of installing the singles stick 1 having the above-described configuration will be described with reference to FIGS. 5 to 6. FIG. In the following description, an example of installation on the tennis court 101 for doubles will be described. Also, the net 201 is stretched over the tennis court 101 via net posts 204 erected outside the doubles sideline 102 of the tennis court 101 .
FIG. 5 is a diagram showing a state where the singles stick 1 is installed, and FIG. 6 is a diagram showing the installation position of the singles stick 1. As shown in FIG.

First, the user stretches the first pole unit 5 and the second pole unit 6, and connects the first pole unit 5 and the second pole unit 6 as shown in FIG. Next, as shown in FIG. 6, in the vicinity of the net 201, the installation line 21 of the singles stick 1 is aligned with the singles side line 103. Then, as shown in FIG. At this time, the axial direction of the singles stick 1 is perpendicular to the singles sideline 103 . Also, the singles stick 1 is arranged so that the leg portion 39 of the singles stick 1 faces the doubles sideline 102 .

As described above, the length x from the installation line 21 to the leg portion 39 is set to a predetermined length (0.914 m). Thereby, the installation position of the singles stick 1 can be easily adjusted.

Next, the singles stick 1 is set up with the leg 39 as a fulcrum. As shown in FIG. 5, a groove 22a (see FIG. 1) provided in the head 22 of the singles stick 1 is hooked onto the cord 202 of the net 201. As shown in FIG. Then, the singles stick 1 is placed between the tennis court 101 and the cord 202 of the net 201, and the singles stick 1 is vertically erected from the tennis court 101. - 特許庁This completes the installation work of the singles stick 1 , and the net 201 is pushed up to a predetermined height (1.07 m) by the singles stick 1 .

As described above, the directions in which the first, second, and third engagement pins 25, 26, and 36 protrude are parallel to the direction in which the groove 22a that engages with the cord 202 extends. . Therefore, as shown in FIG. 5 , when the singles stick 1 is installed, each of the engaging pins 25 , 26 , 36 faces the direction parallel to the surface of the net 201 . This makes it difficult for a batted ball to hit the engagement pins 25, 26, 36 during a match, and prevents the engagement of the engagement pins 25, 26, 36 from being released.

Furthermore, the upper part of the net 201 is a place where a relatively fast hit ball hits during a match. Therefore, in the singles stick 1 of this example, the upper first pole 10 of the first pole unit 5 installed on the upper side is formed thicker than the upper second pole 11 . As a result, the strength of the upper first pole 10 that hits a relatively fast ball can be increased.

Also, the lower first pole 12 connected to the upper second pole 11 is formed thicker than the upper second pole 11 and the lower second pole 13 . Both ends of the upper second pole 11 are inserted into the lower first pole 12 and the upper first pole 10 . Thereby, the length of the upper second pole 11, which is thinner than the other poles 10 and 12, can be shortened. Thereby, the durability of the whole singles stick 1 can be improved.

The present invention is not limited to the embodiments described above and shown in the drawings, and various modifications can be made without departing from the gist of the invention described in the claims.

In the above-described embodiment, an example in which the singles stick 1 is divided into the first pole unit 5 and the second pole unit 6 has been described. It may be configured with a pole unit that Alternatively, it may be divided into three or more telescopic pole units.

Furthermore, although an example in which the pole unit is configured with two balls has been described, the present invention is not limited to this, and the pole unit may be configured with three poles so as to be extendable.

In consideration of portability and ease of assembly, it is preferable that the singles stick is divided into two pole units as in the above-described embodiment, and each pole unit expands and contracts with two poles.

In this specification, words such as "parallel" and "perpendicular" are used, but these do not strictly mean only "parallel" and "perpendicular", but include "parallel" and "perpendicular". Furthermore, it may be in a "substantially parallel" or "substantially orthogonal" state within the range where the function can be exhibited.

1 Singles stick 5 First pole unit (pole unit) 6 Second pole unit (pole unit) 10 Upper first pole (pole) 11 Upper second pole (pole) 12 Lower part First pole (pole) 13 Lower second pole (pole) 21 Installation line 22 Head 22a Groove 23, 33, 34 Fitting part 24 First engagement hole 25 First engagement pin 26 Second engagement pin 27 Reduced diameter portion 31 Second engagement hole 32 Third engagement hole 36 Third engagement pin 39 Leg 101 102: Doubles sideline 103: Singles sideline 201: Net 202: Code

Claims (5)

In the singles stick installed on the tennis doubles court,
a pole unit formed by a plurality of poles so as to be able to expand and contract;
a head provided on the uppermost pole among the plurality of poles and formed with a groove that engages with the cords of the net provided on the court;
a leg portion provided on the lowest pole among the plurality of poles and installed on the court;
singles stick with The singles stick according to claim 1, wherein the uppermost pole among the plurality of poles is formed thicker than the pole connected to the uppermost pole. 3. The singles stick according to claim 2, wherein the pole connected to the lowermost pole among the plurality of poles is formed thicker than the lowermost pole. The singles stick according to claim 3, wherein the pole that connects with the top pole and the pole that connects with the bottom pole are detachably connected. The pole unit is
a first pole unit having a pole formed with the head and formed to be extendable;
a second pole unit having a pole on which the legs are formed and formed to be extendable;
The singles stick according to claim 1, wherein the first pole unit and the second pole unit are detachably connected.

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