A removable center line structure that can be added to a tennis court.

Abstract

This invention provides a removable center line structure that allows players, such as the elderly, who have physical limitations in playing singles tennis, to perform a game with an intensity similar to that of a doubles match. [Solution] The detachable center line consists of a flat strip of rubber 5 approximately 3m long, rivets 6 with needles of a length suitable for clay, hard, or omni court surfaces at both ends of the rubber, and star lock washers 7 to secure the rivets to the rubber. In a standard tennis court, a new center line connecting the center mark and the center of the service line is added to both players' courts, allowing for singles play under the rule that each player uses diagonally diagonal halves of the court, including the alley court, with the net in between.

Description

Technical Field

[0001] The present invention relates to a structure of a center line that adds a new center line to an existing tennis court, applies a new singles tennis rule for playing, and is detachable.

Background Art

[0002] Tennis is a sport that is often selected as a means of moderate exercise and recreation because it can be played by a small number of people and the venue for playing can be obtained relatively easily.

[0003] In such tennis play, especially for the elderly, there are also situations where they have to make intense movements, and there are many general players who mainly play doubles with relatively little movement.

[0004] Also, in such tennis activities, there are cases where the number of people who can play doubles does not gather as expected, and one has no choice but to give up playing, or play singles which is physically difficult and causes excessive exhaustion, or harms health due to the recent severe heat.

[0005] Of course, even with a small number of people, there are ways to enjoy, such as hitting randomly or doing individual practice while managing one's physical condition, but there is a need for a means to reasonably satisfy the desire to play a game.

Summary of the Invention

Problems to be Solved by the Invention

[0006] Provide a new singles tennis rule and its means that can be played with an exercise amount close to that of a doubles game for those who are concerned about playing a singles tennis game, such as the elderly.

Means for Solving the Problems

[0007] In this version of tennis, a new center line (3) is added to both players' courts, connecting the center mark (1) and the center of the service line (2). The game is played under the rule that each player uses a diagonally diagonal half of the court, including the alley court (4), with the net in between.

[0008] The aforementioned center line (3) is installed on the court by riveting studs (6) attached to both ends of a flat, strip-shaped rubber (5) approximately 3m long, as shown in Figure 2, and then removing the studs and collecting the rubber after play. [Effects of the Invention]

[0009] By playing singles matches under the rules of this invention, the defensive area for each player is expected to be about 67% of that under normal rules, significantly reducing the amount of physical exertion required. This has the advantage of increasing the possibility of playing singles games even with small groups of people who may have concerns about their physical fitness.

[0010] A flat, strip-shaped piece of rubber, approximately 3 meters long, can be given appropriate tension by riveting it at a distance of 5.485 meters between the center mark (1) where it is installed and the center of the service line (2), thus ensuring straightness between the two points.

[0011] Furthermore, after inserting the rivet into the flat rubber, if it is secured with, for example, a Starlock washer (7), the rivet will not come off the flat rubber and can be handled safely. [Brief explanation of the drawing]

[0012] [Figure 1] Diagram explaining the rules of singles tennis [Figure 2] Appearance and components of the design product Centerline [Modes for carrying out the invention]

[0013] The center line (3) added to implement the play of this invention is made of white flat rubber about 20 mm wide to improve its visibility, the studs are fixed to the flat rubber with Starlock washers (7) or the like so that they do not easily come off, and the studs are made of a length suitable for the court surface such as clay, hard, or omni. [Examples]

[0014] A new center line (3) is added to both players' courts on a regular tennis court. Serves are hit alternately from the deuce and advantage sides as usual, and the normal service court area applies. However, until play on that serve is finished, the diagonal half of the court (the shaded area or unshaded area shown in Figure 1), including the alley on the side that served and returned, becomes valid. The aforementioned center line (3) should be collected after play by removing the studs. [Explanation of symbols]

[0015] 1 Center Mark 2 Service Line Center 3. Additional center line 4 Alley Court 5 Flat elastic 6 rivets 7 Star Lock Washers

Claims

1. In the standard tennis court layout shown in Figure 1, a new center line (3) is added to both players' courts, connecting the center mark (1) and the center of the service line (2). This new singles tennis rule involves each player using diagonally opposite halves of the court, including the alley court (4), across the net.

2. A detachable center line structure for playing according to claim 1, comprising a flat, strip-shaped rubber (5) approximately 3 meters in length, with rivets (6) having needles of a length suitable for the court surface such as clay, hard, or omni fixed to both ends of the rubber using starlock washers (7) or the like so as not to easily come off.

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