Classifications

• • A—HUMAN NECESSITIES
  • A63—SPORTS; GAMES; AMUSEMENTS
  • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
  • A63B69/00—Training appliances or apparatus for special sports
  • A63B69/38—Training appliances or apparatus for special sports for tennis
• • A—HUMAN NECESSITIES
  • A63—SPORTS; GAMES; AMUSEMENTS
  • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
  • A63B49/00—Stringed rackets, e.g. for tennis
  • A63B49/02—Frames
  • A63B49/03—Frames characterised by throat sections, i.e. sections or elements between the head and the shaft
• • A—HUMAN NECESSITIES
  • A63—SPORTS; GAMES; AMUSEMENTS
  • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
  • A63B2209/00—Characteristics of used materials
  • A63B2209/10—Characteristics of used materials with adhesive type surfaces, i.e. hook and loop-type fastener
• • A—HUMAN NECESSITIES
  • A63—SPORTS; GAMES; AMUSEMENTS
  • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
  • A63B2220/00—Measuring of physical parameters relating to sporting activity
  • A63B2220/40—Acceleration
• • A—HUMAN NECESSITIES
  • A63—SPORTS; GAMES; AMUSEMENTS
  • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
  • A63B2220/00—Measuring of physical parameters relating to sporting activity
  • A63B2220/80—Special sensors, transducers or devices therefor
  • A63B2220/83—Special sensors, transducers or devices therefor characterised by the position of the sensor
  • A63B2220/833—Sensors arranged on the exercise apparatus or sports implement

Definitions

• the present invention relates to the field of measuring devices associated with sports equipment such as a racket and in particular a tennis racket equipped with a handle, a sieve, two branches connecting the handle of the racket to sieve of the racket.
• Measuring devices for tennis rackets are known and come in different forms. These measuring devices are intended to measure physical parameters, such as, for example, the speed of rotation or even the acceleration of the racket.
• the present invention more particularly relates to a measuring device which comprises a housing which comprises:
• a first portion having a front face and a rear face having a flat surface configured to abut against at least the lateral edges of the branches, and
• the housing having a longitudinal direction which is parallel to the handle when said device is mounted on said racket, said housing comprising a battery and an electronic circuit electrically connected to the battery.
• Such a device is described in particular in document FR 2829700. It describes the use of a housing that is housed between the two branches.
• the housing comprises on its rear face a pad integral with a block of foam.
• the foam block is disposed between the branches and has deformation properties.
• This device has several disadvantages. Indeed, first of all the foam block having deformation properties will have the drawback of being worn during its use.
• the housing is connected to the foam block by means of a stud located on the rear face.
• the housing is likely to rotate when using the measuring device. As a result, measurement by the device is disturbed. The effectiveness of the measuring device is therefore greatly reduced since it does not provide accurate and reliable measurements.
• An object of the invention is to provide a measuring device overcoming the aforementioned drawbacks.
• the object of the invention is in particular to improve the measurement of the measuring device.
• the second portion has an upper end, a lower end and opposite lateral faces shaped to bear against the inner edges of the branches, the width of the second portion. being decreasing towards the lower end, and the plane surface has two plane zones arranged on either side of the lateral faces of the second portion, said flat zones being shaped to bear against the lateral edges of the branches when the measure is mounted on the racket.
• the side faces of the second portion are positioned against the inner edges of the branches of the racket when the device is mounted on the racket.
• the support provided by each of the opposite side faces of the second portion against the inner edges of the branches and the support provided by each of the flat areas of the flat surface against the edges Lateral branches provide increased stability of the case relative to the racket.
• the casing is locked in rotation relative to the racket along an axis perpendicular to the longitudinal direction.
• Another advantage is that the side faces and the flat areas allow the housing to be positioned quickly and reliably. Yet another advantage of the device according to the invention is that it can be mounted on different models of racket.
• the housing is easily positioned, properly wedged so that the quality of the measurements taken by the measuring device is improved.
• the two planar zones extend along the length of the second portion.
• the two planar zones border the lateral faces of the second portion, which further improves the behavior of the housing.
• the two planar zones are perpendicular to the opposite side faces of the second portion.
• the interest is to obtain two flat areas that will achieve maximum support with the side edges of the branches of the racket.
• greater stability of the housing is obtained when the device is mounted on the racket.
• the first portion has an upper portion and a lower portion, and the second portion projects from the upper portion of the first portion.
• the lower portion has a flat face intended to bear against the upper edge of the handle of the racket.
• the second portion projecting from the upper portion of the first portion, makes it possible to position and wedge the housing between the two branches of the racket, while the lower part, resting against the racket, offers a surface of additional support to further improve the stability of the device.
• the lower portion of the first portion has a thickness less than the thickness of the upper portion of the first portion, whereby when the user place his hand on the upper part of the handle and on the lower part of the case, it is not bothered by the presence of the case.
• the length of the second portion, considered in the longitudinal direction of the housing is at most equal to half the length of the housing. It is thus understood that a surface of the rear face of the lower part is available to come, in particular, bearing against the side edges of the branches of the racket.
• the upper portion has a width greater than the width of the lower portion, so that the lateral edges of the housing are inclined relative to the longitudinal direction.
• the inclined lateral edges can be made, for example, to conform to the shape of the branches of the racket.
• the space occupied by the housing does not cause discomfort in the movement of the racket. The case disturbs little the penetration of the racket in the air. It is the same for the sensations of the user compared to a racket not equipped with the measuring device.
• the flat surface has a flat lower zone located at the lower portion of the first portion.
• the lower zone is shaped to abut against at least the lateral edges of the branches. It will be understood that the flat lower zone is distinct from the two aforementioned flat zones, the latter being in the upper part of the first portion, on either side of the second portion.
• the flat lower zone of the flat surface provides a greater bearing surface against the lateral edges of the branches.
• the housing further comprises at least one fastening strip bearing on at least one of the upper or lower portions of the first portion, and intended to be fixed to at least one of the branches or the handle racket when the device is mounted on the racket.
• fastening strips may be Velcro type, elastic material or a fastening strip may comprise a notch system.
• the fastening strip reinforces the stabilization of the case vis-à-vis the racket.
• the fastening strip improves the maintenance of the box mounted on the racket and thus the measurement accuracy of the measuring device is improved.
• the first portion further comprises at least one passer disposed on the front face of the housing to receive the fastening strip.
• the cooperation of the band with the passer still allows to improve the maintenance of the racket box.
• the housing is provided with at least one pair of loops disposed on the upper part.
• the fastening strip may be secured by means of an adhesive to the housing.
• the electronic circuit comprises at least one accelerometer, which is preferably arranged in the lower part of the first portion.
• the accelerometer thus disposed has the advantage of being positioned stably.
• the interest is to obtain a minimum of variations of movement of the accelerometer with respect to its reference system and thus obtain effective measurement by the measuring device.
• the area of the second portion is less than the area of the flat surface, whereby the device has on the rear surface a relatively important to bear against the side edges of the branches and also on the upper part of the handle.
• the second portion has the shape of a block and the two opposite side faces are inclined relative to the longitudinal direction of the housing.
• each of the opposite side faces of the second portion forms an angle with the longitudinal direction of the housing, this angle being between 10 ° and 30 °.
• the opposite side faces are likely to be compatible with many rackets equipped with a handle, a sieve, two branches connecting the handle of the racket sieve of the racket.
• the block further has a lower face, oriented transversely to the flat surface, said lower face being curved.
• the interest of the convex underside is to come to comply with the upper part of the handle of the racket having the join of the branches of the racket.
• the convex shape bears against the join branches.
• support of the underside further improves the stability of the device so as to improve the measurement by the device.
• the block is made of a rigid material, for example plastic.
• the block is made of the same material as the first portion.
• At least one of the faces of the block further comprises a non-slip coating.
• a non-slip coating is to obtain an increase in frictional forces.
• each of the opposite side faces has a non-slip coating whereby a very good retention of the case vis-à-vis the racket is obtained.
• At least one of the flat areas is provided with a non-slip element.
• a non-slip element on at least one of the flat areas, the housing gets a better grip on the support zone.
• the height of the second portion is at least equal to half the length of the housing.
• the second portion has a height large enough to provide a greater support surface against the inner edges of the branches of the racket.
• the transmission of forces is better distributed over the entire surface of the opposite side faces of the second portion.
• the second portion comprises a recess formed inside said second portion.
• the block is hollow.
• the electronic circuit and / or the battery are housed in the recess.
• the electronic circuit is housed in the first portion, while the battery is housed in the second portion.
• the battery is thus housed in the recess of the second portion.
• the housing according to the invention has the advantage of not creating an imbalance of the racket during use.
• the second portion is formed in one piece with the first portion.
• the entire housing provides increased rigidity and helps maintain the position of the housing when used when mounted between the branches of the racket.
• the invention also relates to a racket equipped with a handle, a sieve, two branches having internal and lateral edges, said branches connecting the handle to the sieve, and comprising a measuring device according to the invention, in which flat areas bear against the lateral edges of the branches, and wherein the second portion is housed between the two branches so that the lateral faces of the second portion bear against the inner edges of the branches.
• FIG. 1 is a front perspective view of the measuring device according to the invention installed on a tennis racket;
• - Figure 2 is a rear perspective view of the device installed on a tennis racket;
• FIG. 3 is a rear view in the plane of the device installed on a tennis racket
• FIG. 4 is a perspective view of the device according to the invention.
• FIG. 5 is a rear perspective view of the device
• FIG. 6 is a side view of the device
• FIG. 7 is a rear view in the plane of the device in a variant
• FIG. 8 is a front perspective view of the device
• FIG. 9 is a front view in the plane of the device.
• FIG. 10 is a front perspective exploded view of the housing. Detailed description of the invention
• FIGS. 1 to 10 show an example of a measuring device 10 according to the invention mounted on a racket 12 provided with a handle 14, a sieve 16 and two branches 18 comprising inner edges 20 and side edges 22.
• the branches 18 are used to connect the handle 14 of the racket sieve 16 of the racket. In this non-limiting example, it is a tennis racket.
• the measuring device 10 is configured to measure at least the acceleration of the racket.
• it comprises at least one accelerometer.
• the accelerometer is part of an electronic circuit that will be described below.
• snowshoes have a large hollow portion located between the sieve 16, the inner edges 20 of the branches 18 and the upper portion 14a of the handle where the branches 18 of the racket 12 meet.
• the measuring device 10 comprises a housing 24 which firstly comprises a first portion 26 having a front face 28, a rear face 30 which has a flat surface 32
• the housing 24 comprises a cover 29.
• the flat surface 32 of the rear surface 30 is configured to bear against the side edges 22 of the legs 18, and in this example against the upper edge of the handle 14a.
• the housing 24 extends in a longitudinal direction D which is parallel to the handle when the housing 24 is mounted on the racket 12.
• the housing 24 has a second portion 34 projecting from the rear face 30 of the first portion 26.
• the second portion 34 is rigid.
• the first and second portions 26, 34 are made, in this example, in a rigid material such as plastic.
• the second portion 34 consists of an upper end 40 and a lower end 42. It can be seen that the width of the second portion decreases when moving towards the lower end of the second portion 34.
• width of the second portion 34 is meant the dimension which is perpendicular to the longitudinal direction D.
• the second portion 34 has two opposite lateral faces 44 which bear on the inner edges 20 of the branches 18.
• the opposite lateral faces 44 are inclined with respect to the longitudinal direction D of the housing 24 following the decrease of the width of the second portion 34.
• the user positions the second portion 34 of the housing by sliding the along the inner edges of the branches of the racket until the displacement in the longitudinal direction to the upper portion 14a of the handle 14 is no longer possible.
• the opposite lateral faces 44 each form an angle ⁇ with respect to the longitudinal direction D of the housing 24 which is between 10 ° and 30 °.
• the opposite lateral faces 44 bear against the inner edges 20 of the branches 18. Consequently, the second portion 34 will be unable to pivot about an axis X perpendicular to the plane P of the racket 12 and located substantially in the center of the second portion 34. Thus, the rest of the housing is also unable to pivot in the plane parallel to the plane P of the racket 12.
• planar areas 32a are arranged on each side of each of the opposite side faces 44. It is understood that the flat areas 32a will bear against the lateral edges 22 of the branches 18. Consequently, it can be seen that the planar zones 32a will make it possible to reduce the possibility of the second portion 34 and the first portion 26 of pivoting about an axis Y parallel to the plane P and perpendicular to the axis X located substantially in the center of the second portion.
• planar zones 32a are perpendicular to the opposite side faces 44 of the second portion 28.
• the first portion 26 consists of an upper portion 26a and a lower portion 26b.
• the upper portion 26a extends between the upper end of the housing and the lower end of the second portion, while the lower portion 26b extends below the upper portion 26a until at the lower end of the housing 24.
• the upper portion 26a has a thickness e1 greater than the thickness e2 of the lower portion 26b.
• the lower portion 26b of the housing 24 offers a stall which hinders the least possible user who positions his hand on the upper part of the handle and on the lower part 26b of the housing 24.
• the second portion 34 has a length L1, considered in the longitudinal direction D of the housing, which is less than half the length L2 of the housing.
• the two planar zones 32a extend along the length L1 of the second portion 34.
• the plane zones 32a line the lateral faces 44 of the second portion 34.
• the upper portion 26a of the first portion has a width 11 greater than the width 12 of the lower portion of the first portion.
• the lateral edges 46 of the housing 24 are inclined. In the illustrated example, the lateral edges 46 adapt to the convergent shape of the branches 18 of the racket 12 in order to bring a pleasant aesthetic appearance to the user. In Figures 1 to 3, the housing 24 is mounted on the racket.
• the flat surface 32 of the rear face 30 comprises in the upper part 26a two flat areas 32a bearing against the lateral edges 22 of the branches 18 of the racket 12.
• the second portion 34 projecting between the two branches 18.
• the flat surface 32 furthermore has a flat lower zone 32b which is located at the lower part 26b of the first portion 26. In FIGS. 1 to 3, it can be seen that the flat lower zone 32b bears against the upper part of the handle 14a. , in order to allow the locking in rotation of the housing around the axis Y.
• the device comprises a fastening strip 48 which bears on the upper part of the front face of the first portion of the housing and also surrounds the branches of the racket.
• the front face 28 of the first portion 24 of the housing has two pairs of loops 50a, 50b.
• a first pair 50a is located on the upper portion 26a of the front face 28 and a second pair 50b of loops is located in the lower portion 26b of the front face 28 of the first portion 26.
• the two loops 50a located in the upper part 26a of the front face 28 are arranged face to face on opposite side edges 46 of the cover 29 of the housing 24.
• the fastening strip 48 passes through the two loops 50a of the upper portion 26a of the 28. Then the fastening strip surrounds the branches 18 of the racket 12.
• the fastening strip 48 When a force F is exerted in the longitudinal direction D facing the sieve of the racket, the fastening strip 48 rests against the branches 18 of the racket 12, so that the casing 24 undergoing the force F is substantially maintained in position by means of the fastening strip 48 which against the force F.
• the housing 24 and the fastening strip 48 are connected to one another, thus, thanks to the supports made by the fastening strip 48 against the branches 18, the housing 24 will remain substantially in its housing located in the upper portion 14a of the handle 14 of the racket 12.
• the loops 50b located in the lower portion 26b are capable of receiving another fastening strip similar to the strip of fixation 48 located in the upper portion 26a of the first portion 26.
• Such fastening strip in one embodiment, passes through the two loops 50b located in the lower part and surrounds the upper portion 14a of the handle.
• the electronic circuit 38 comprises an accelerometer 52.
• the accelerometer 52 is disposed in the lower part 26b of the first portion 26.
• the accelerometer 52 is able to perform precise measurements as soon as it is located in a very stable part of the device 10.
• the circuit comprises an inertial unit comprising at least the aforementioned accelerometer and other measuring means.
• the inertial unit is disposed in the lower part of the first portion. So when the case is mounted on the racket, the inertial unit takes the various measures of movement. The measurements are then passed to a local or remote storage space.
• the height defined in a direction perpendicular to the plane surface 32 is of a length equal to about half the length L2 of the housing 24.
• the upper portion 14a of the handle comprises the joint between the branches 18 and whose shape of the joint is a complementary shape of the convex lower face 54, the convex lower face 54 bears against the surface 55 of the complementary shape.
• anti-slip coatings 56 are arranged on the opposite lateral faces 44 of in order to prevent slippage of the opposite lateral faces with respect to the inner edges 20 of the branches 18 of the racket.
• the flat surface comprises non-slip elements 58.
• non-slip elements 58 are arranged at least in the plane zones 32a located on either side of the lateral faces 44 of the second portion 34.
• anti-slip elements 58 are disposed on the flat surface 32b located in the lower part of the first portion.
• the non-slip elements located on the flat surface 32 abut with the side edges 22 of the arms 18 of the racket 12 so as to increase the friction and thus the non-slip elements 58 participate in improving the maintenance of the housing compared to the branches of the racket.
• first portion 26 and the second portion 34 have recesses located inside the housing 24.
• first portion 26 and the second portion 34 form a single piece, the cover 29 constituting an insert.
• the device 10 comprises the first portion, the second portion projecting from the rear face of the first portion and comprises a third portion symmetrical to the first portion along the plane P of the racket .
• the third portion is also attached to the second portion by a back face.

Landscapes

• Health & Medical Sciences (AREA)
• General Health & Medical Sciences (AREA)
• Physical Education & Sports Medicine (AREA)
• Pulmonology (AREA)
• Casings For Electric Apparatus (AREA)
• Details Of Measuring And Other Instruments (AREA)
• Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=47505161

Family Applications (1)

Country Status (4)

Families Citing this family (2)

Family Cites Families (5)

• 2012
  • 2012-11-15 FR FR1260858A patent/FR2997865B1/fr active Active
• 2013
  • 2013-11-08 CN CN201380059862.5A patent/CN104797307A/zh active Pending
  • 2013-11-08 WO PCT/FR2013/052676 patent/WO2014076393A2/fr active Application Filing
  • 2013-11-08 EP EP13801643.1A patent/EP2919872A2/de not_active Withdrawn

Non-Patent Citations (1)

Also Published As

Similar Documents

Legal Events