Set for playing a sport comprising a concave table
20260115560 ยท 2026-04-30
Inventors
Cpc classification
A63B2043/001
HUMAN NECESSITIES
A63B67/04
HUMAN NECESSITIES
A63B39/00
HUMAN NECESSITIES
International classification
A63B67/04
HUMAN NECESSITIES
Abstract
A set for playing a sport, designed for an exchange of shots between two players. The set includes: a ball; and a table having a playing surface longitudinally extending between opposite action edges, between which the players are caused to exchange shots with the ball. The playing surface has a curved longitudinal profile, between the action edges delimiting a concavity open above the table. The playing surface and the ball being configured to absorb bounces of the ball on the playing surface.
Claims
1. A set for playing a sport, designed for an exchange of shots between first and second players, comprising: a table comprising a playing surface longitudinally extending between first and second opposite action edges, between which the first and second players are caused to exchange shots with the a ball; wherein the playing surface has a curved longitudinal profile, between the first and second action edges, delimiting a concavity open above the table, and the playing surface is configured to absorb bounces of the ball on the playing surface the table comprising a frame carrying the playing surface, and means of absorbing the playing surface relative to the frame.
2. The set according to claim 1, wherein the frame comprises cross-members supporting the playing surface and extending perpendicular to the longitudinal profile of the playing surface, the cross members including: first and second end cross-members positioned in an immediate proximity of the first and second action edges of the playing surface, respectively; a central cross-member equidistant from the first and second end cross-members, the playing surface is unsupported between adjacent ones of the cross-members, at least at a longitudinal median section of the table, to form at least part of the means of absorbing.
3. The set according to the playing surface comprises a profile having: a primary arc section longitudinally centered on the playing surface, and having a primary radius of curvature; first and second secondary arc sections positioned on either side of the primary arc section, each having a secondary radius of curvature with a value less than the primary radius of curvature.
4. The set according to claim 1, wherein the table comprises a central obstacle extending perpendicular to the longitudinal profile of the playing surface, and overhanging the playing surface while providing a space for the ball to pass therethrough.
5. The set according to claim 4, wherein the central obstacle is height-adjustably mounted to the table relative to the playing surface.
6. The set according to claim 1, wherein the table comprises first and second side walls extending in height from first and second side edges of the playing surface, between the first and second action edges.
7. The set according to claim 6, wherein each side wall has a fixed central section and, in proximity to each action edge, a dismountable end.
8. The set according to claim 1, wherein the set further comprises the ball and wherein the ball has a rebound resilience from a height of 254 cm of less than or equal to 15% minimum of 23 C., and between 25% and 35% at 45 C.
9. The set according to claim 9, wherein the rebound resilience of the ball from a height of 254 cm is less than or equal to 12% at a minimum of 23 C., and is between 25% and
10. The set according to claim 1, wherein the means of absorbing comprises at least a portion of the playing surface being unsupported by the frame along a longitudinal median section of the table.
11. The set according to claim 1, wherein the table is flexible relative to the frame, the flexibility of the table relative to the frame forming at least part of the means of absorbing.
12. The set according to claim 1, wherein the table comprises: first and second side walls, each side wall comprising a groove in which a respective side edge of the playing surface is inserted, at least a portion of the groove having a width greater than a thickness of the playing surface to form a space allowing movement of the at least a portion of the playing surface relative to the side wall, the width of the groove, the thickness of the playing surface and the space forming at least part of the means of absorbing.
13. The set according to claim 1, wherein the means of absorbing comprises at least first and second elastically deformable studs, and wherein the table comprises: first and second side walls, which support first and second side edges, respectively, of the playing surface through the first and second elastically deformable studs, respectively.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
[0046] Further characteristics and advantages of one or more aspects of the present disclosure will become apparent upon reading the following description of different preferred embodiments of the disclosure, given as illustrative, non-limited examples, and the appended drawings, including:
[0047]
[0048]
[0049]
[0050]
DETAILED DESCRIPTION OF ILLUSTRATIVE EMBODIMENTS
[0051] With reference to
[0052] The set is designed for two players, or four players, to exchange shots with the ball.
[0053] The set thus comprises a ball that is especially specific to the set.
[0054] As detailed below, this ball is designed not to have a high bounceability on the table 1.
[0055] A reference frame XYZ is represented in these figures. Three axes are thus defined, including an axis X, an axis Y, and an axis Z. The axis X is orthogonal to the axis Y, and the axis Z is orthogonal to the axis X and the axis Y.
[0056] With reference to
[0057] The set is thus designed so that the ball rolls on this playing surface 2.
[0058] As is visible in
[0059] This playing surface 2 longitudinally extends between two action edges 21 opposite to each other.
[0060] Especially, the playing surface 2 longitudinally extends along axis X.
[0061] These two action edges 21 extend parallel to each other.
[0062] The two action edges 21 thus extend orthogonally to axis X and parallel to axis Y.
[0063] Between these two action edges 21, the players are caused to exchange shots with the ball above the playing surface 2.
[0064] The playing surface 2 also has two side edges 22.
[0065] These side edges 22 extend, in an orthogonal projection in a plane defined by axes X and Y, parallel to each other.
[0066] The side edges 22 thus extend in a plane orthogonal to axis Y.
[0067] These two side edges 22 join the two action edges 21 and each extend in a plane perpendicular to these action edges 21.
[0068] The side edges 22 have a greater length than that of the action edges 21.
[0069] According to one contemplatable embodiment, the side edges 22 may have a length less than that of the action edges.
[0070] The action edges 21 and the side edges 22 together form a border of the playing surface 2.
[0071] The playing surface 2, for example, is made of a 3 mm thick polypropylene plate.
[0072] With reference to
[0073] By longitudinal profile, it is understood the line formed by the playing surface in a plane defined by axis X and axis Z, and extending orthogonally to the two action edges 21 which each extend in a same plane.
[0074] With a curved profile, the playing surface 2 has a longitudinal profile comprised of at least one arc section with a radius of curvature whose point of origin is located above the playing surface.
[0075] It is also contemplatable that the curvature of the playing surface does not follow an arc of a circle with a constant radius in the vertical plane.
[0076] Playing surface 2 has this curved longitudinal profile between its two action edges 21.
[0077] Of course, along axis Y, the playing surface 2 has the same longitudinal profile.
[0078] The curved longitudinal profile of the playing surface 2 delimits a concavity open above the table 1.
[0079] With reference to
[0080] Furthermore, the profile of playing surface 2 has two secondary arc sections 202 positioned on either side of the primary arc section 201.
[0081] Each secondary arc section 202 has a secondary radius of curvature RS.
[0082] As is visible in
[0083] In an indicative and non-limited way, the main radius of curvature (RC) has a value of 5,687 mm, while the secondary radius of curvature (SC) has a radius of curvature value of 642 mm.
[0084] Each secondary arc section 202 is directly butted to the primary arc section 201.
[0085] Further, the longitudinal profile of the playing surface 2 has straight sections 203 directly extending from the secondary arc sections 202 to the action edges 21.
[0086] In other words, the playing surface 2 successively displays, from one action edge 21 to the other action edge 21, a straight section 203, one of the secondary arc sections 202, the primary arc section 201, the other secondary arc section 202, and then the other straight section 203.
[0087] With reference to
[0088] The frame comprises 3 cross-members that support the playing surface 2.
[0089] The three cross-members are especially comprised of: [0090] two end cross-members 31 positioned in proximity to the action edges 21 of the playing surface 2; [0091] a central cross-member 32 equidistant from the two end cross-members 31.
[0092] The frame also comprises a base 33.
[0093] The cross-members are integral with the base 33.
[0094] Each cross-member extends parallel to the action edges 21 of the playing surface 2.
[0095] Table 1 also comprises means of absorbing the playing surface 2 relative to the frame.
[0096] These means of absorbing the playing surface 2 make it possible to limit bounce of the ball on the playing surface 2, causing it to roll rather than bounce.
[0097] According to the embodiment represented, the playing surface 2 is not supported between the adjacent cross-members, at least at a longitudinal median section of the table 1.
[0098] In the absence of support, an absorption resulting from the flexibility of the playing surface between the adjacent cross-members is conferred on playing surface 2.
[0099] The way in which playing surface 2 is maintained relative to the frame forms the aforementioned means of absorption.
[0100] According to the present embodiment and with reference to
[0101] According to the present embodiment, the two side walls 5 are integrated into the frame.
[0102] Indeed, each side wall 5 has a groove into which the side edge 22 of the playing surface 2 is inserted.
[0103] According to one alternative, the playing surface 2 is restricted to the inside of the side walls 5 to have its curved shape.
[0104] According to another alternative, the playing surface 2 can be preformed and inserted into the grooves.
[0105] To participate in the absorption capacity of playing surface 2, the grooves provided in the side walls 5 have a width greater than the thickness of playing surface 2, allowing space for movement of playing surface 2 relative to side wall 5.
[0106] Alternatively, the playing surface 2 can be assembled to the side walls 5 and the assembly is designed to confer an absorption capacity on the playing surface, for example by implementing elastically deformable studs to support the playing surface.
[0107] By extending in height from the side edges 22 of the playing surface 2, each side wall 5 allows the ball 2 to be returned to the inside of the playing surface 2 when the same hits one of the side walls 5.
[0108] The side walls 5 extend between the action edges 21. The side walls 5 more precisely extend to the action edges 21.
[0109] According to the present embodiment, each side wall 5 has a fixed central section 51 and, in proximity to each action edge 21, a dismountable end 52 relative to the central section 51.
[0110] By dismounting the dismountable ends 52, a ball rolling on playing surface 2 is allowed to leave this playing surface 2 through the mounting location of the dismountable end 52.
[0111] With reference to
[0112] This central obstacle 4 overhangs the playing surface 2, while providing a space for the ball to pass therethrough.
[0113] This central obstacle 4 is especially height-adjustably mounted to the table 1 relative to the playing surface 2.
[0114] According to the present embodiment, the central obstacle 4 is especially height-adjustably mounted to the two side walls 5, and more specifically to the central section 51.
[0115] The central obstacle 4 especially takes the form of a small plate which could be made of wood, for example.
[0116] The ball in the set is comparable to a squash ball with a very low bounceability, such as the one used at professional levels.
[0117] This ball of the set takes the form of a hollow rubber sphere, for example.
[0118] The ball advantageously has a rebound resilience from a height of 54 cm of less than or equal to 15%, and preferably equal to 12%, at a minimum of 23 C., and between 25 and 35%, preferably between 25 and 30%, at 45 C.
[0119] The set according to an aspect of the disclosure may also comprise rackets enabling players to hit the ball back towards the playing surface after the same has left the playing surface via one of the action edges 21 or one of the side edges 22 at the location of a dismountable end 52 disassembled from the table 1.
[0120] An aspect of the present disclosure therefore overcomes the drawbacks of prior art.
[0121] More precisely, an aspect of the disclosure provides a set for playing a sport, of the type comprising a table and a ball to be used on the table, which is easy for a beginner to learn, and especially easier than table tennis.
[0122] An aspect of the disclosure provides such a set, wherein a beginner can more easily comprehend trajectories of the ball than in the aforementioned sports.
[0123] Although the present disclosure has been described with reference to one or more examples, workers skilled in the art will recognize that changes may be made in form and detail without departing from the scope of the disclosure and/or the appended claims.