Classifications

• • 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
  • A63B49/038—Frames with head subframes for replacing strings
• • 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
  • A63B49/035—Frames with easily dismountable parts, e.g. heads, shafts or grips
• • A—HUMAN NECESSITIES
  • A63—SPORTS; GAMES; AMUSEMENTS
  • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
  • A63B60/00—Details or accessories of golf clubs, bats, rackets or the like
  • A63B60/54—Details or accessories of golf clubs, bats, rackets or the like with means for damping vibrations
• • A—HUMAN NECESSITIES
  • A63—SPORTS; GAMES; AMUSEMENTS
  • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
  • A63B2208/00—Characteristics or parameters related to the user or player
  • A63B2208/12—Characteristics or parameters related to the user or player specially adapted for children

Definitions

• the invention relates to a ball racket with a folding or separable frame or carcass. All snowshoes in one piece have a number of drawbacks. In fact, they have a considerable size for people called to move with their snowshoes. It is difficult to put a racket in a bag, often the handle sticks out. The covers provided for their storage often only wrap the pillow, leaving the handle sticking out.
• Ball rackets are known, the handle of which can be folded down over the sieve, as illustrated for example in Patent FR No. 1,423,709, or in US Patent No. 1,673,614.
• the present invention aims to remedy these drawbacks and to provide various advantages, by proposing a racket for ball games, formed of a handle and a sieve or the like, mounted relative to each other with articulation around an axis, characterized in that it comprises a device for blocking said articulation, located at a distance from the articulation axis, as well as a vibration damping device interposed between said handle and said screen.
• the handle folds over the sieve or vice versa, which allows easy storage in a cover provided for this purpose, having the shape of a sieve and wide enough to possibly contain several sieves and several sleeves. .
• the sieve and the sleeve therefore become two separate parts linked together by their articulation, separated by damping joints where, the articulation itself acting as a damper, the vibrations are no longer conducted to the player's arm, reducing the problems with the player's elbow joints.
• racket manufacturers it will be observed that the handle and the sieve being two distinct elements, it is possible to organize their manufacture according to different technologies, each element having a size and a weight clearly lower than those of a monoblock racket , which makes it possible to plan the production tool. Manufacturing defects will not result in the scrapping of an entire racket but only that of the two elements, handle or sieve, which is concerned. Finally, the packaging for transport, delivery and presentation can be simplified, and give rise to new original forms.
• Figure 1 is a schematic representation illustrating a racket according to the invention, in three different arrangements.
• Figures 2 and 3 illustrate a first embodiment of the articulation between the handle and the screen with latch locking.
• Figure 4 shows a telescopic racket handle.
• Figures 5 and 6 illustrate a second embodiment of the articulation between the handle and the sieve with locking by sheath.
• Fig. 7 illustrates a hinge blocking by pin.
• FIGS. 8 and 9 illustrate a device with double retractable articulation.
• FIG. 10 illustrates a variant of a device with double retractable articulation.
• Figures 11 and 12 illustrate a racket with half articulated handle.
• Figures 13 and 14 illustrate a variant racket with half-hinged handle.
• Figures 15 and 16 illustrate an articulated racket with articulation offset.
• FIG. 17 illustrates a variant of racket similar to that of FIG. 15.
• the racket 10 illustrated in Figure 1 is a tennis racket, but it will be understood that the present invention applies to any racket intended for ball games in general, or even games where a racket is used to strike a object.
• the racket 10 comprises a handle 12 and a sieve 14 formed by a rope 16 stretched over a frame 18.
• the handle and the sieve are two separate components, assembled by means of a hinge 20, so that The sieve can be brought into the extension of the handle in the normal use position (drawn in solid lines) or folded against the handle in the storage position (drawn in dashes 14 '), by pivoting around the axis XX of the hinge 20 (dotted line 14 ").
• the articulation can be achieved in various ways, as will be seen in the remainder of this description.
• the simplest embodiment consists in laterally fixing a flat hinge which will preferably be removable, which makes it possible to separate the handle from the sieve.
• FIGS. 2 and 3 illustrate a locking device 2 for the articulation 20, seen in plan in FIG. 2 and in section in FIG. 3.
• the hinge is here of the flat hinge type and allows the screen 14 to tilt to the right When considering FIG. 3.
• the screen 14 carries a rod 24 whose head 25 is embedded in the frame 18 and which projects towards the handle 12.
• the handle 12 has a cutout 26 in which the rod 24 is housed in the aligned position illustrated in the figures. At the bottom of the cutout is housed a sliding latch 28 guided in the cutout in the manner of a slide and pushed back in the direction of the air by a spring 30.
• the end of the latch has a re-entrant shoulder 32 under which engages the nose 34 of the rod, which locks the sieve in the extension of the handle.
• the handle Between the handle and the sieve, at the level of the articulation, there is interposed a plate 36 of vibration-absorbing material, intended to prevent the propagation of vibrations from the sieve to the handle, which avoids physiological disorders in the racket user.
• the handle carries positioning pins 38, which will also advantageously be made of vibration-absorbing material.
• the cutout 26 can be lined with vibration damping material to avoid the transmission of vibrations by the rod 24.
• the handle When the handle is particularly long, as is the case with squash rackets for example, the handle may protrude from the sieve once it is folded down. As illustrated in Figure 4, we can provide in this in the case of a handle made in two parts 12a and 12b mounted tee Léscopi cally one relative to the other, with a ratchet blocking device 40.
• FIGS. 5 and 6 illustrate a variant articulation with two axes XX, YY making it possible to house the axes substantially in the middle of the thickness of the handle and of the drum.
• the hinge pin is necessarily located on the surface, to allow the handle to be folded "flat" against the screen.
• the handle 12 and the sieve 14 end, at their opposite ends, with ear flanges 42 and 44 respectively, between which is embedded an intermediate plate 50 with two pivots 46 and 48, the first crossing the ears 42 of the handle and the second ears 44 of the sieve, sensiblem.ent in the middle of the thickness of the handle and the sieve.
• the longitudinal spacing of the axes (XX, YY) of the two pivots 46 and 48 is calculated so as to allow the sieve to fold down "flat" against the handle by rotating the sieve approximately 90 degrees relative to the intermediate plate 50 and of the latter by 90 degrees - about the handle.
• At least one of the pivots is removable to allow separation of the handle and the sieve.
• the trans ission of vibrations from ta ta is to the handle by making the intermediate plate itself in vibration absorbing material.
• the handle 12 is extended by a male tenon 56 which is housed in a female notch 57 between two wings 58 of the sieve.
• One of these wings carries a pin rod 60, loaded by a spring 62 and ending on the outside by an operating ring 64.
• the pin rod passes through the lug 56 of the handle and the two wings 58 of the sieve for ensure positive and effective blocking of the sieve and the handle in line with one another.
• a blade of vibration-absorbing material is interposed between the handle and the screen at the articulation.
• Figures 8, 9 and 10 illustrate two similar variants of articulation with two axes, in which the entire articulation device is erasable in the handle.
• the articulation device comprises a composite rod 66 formed of three successive sections 66a, 66b, 66c, the first being integral with the screen 14 and the handle 12 comprising a housing 68 capable of receiving the entire rod composite.
• the stem sections are connected by tenon and clevis to ear joints, of axes XX and YY, respectively, similar to that of the embodiment of FIGS. 5 and 6.
• the composite rod forms a threaded rod and Le Logement 68 is tapped, so that when the screen is brought into the extension of the handle the threaded rod is practically uninterrupted and can be screwed into the housing 68 until the screen and the handle come into tight contact with interposition of a blade of vibration-absorbing material 70.
• the accidental unscrewing of the rod 66 is prevented by means of a lug 72 with spring 74 mounted on the handle 12 and which engages in a transverse hole in the section of rod 66c.
• the rod 66 is smooth, as is the housing 68 which crosses the entire handle 12.
• the rod ends in a short threaded portion 66d onto which is tightened a tightening nut 76 surrounded by a knurled button 78.
• FIGS. 11-12 and 13-14 have the common characteristic that the handle is produced in two juxtaposed halves and which can be folded individually against the screen.
• the handle 12 consists of two identical halves 12g and 12d placed side by side, and held tight by means of a removable tubular handle 13.
• Each sleeve half is articulated (joints 80 and 82) on the sides of the screen frame and can thus be folded laterally in the plane of the screen itself.
• the two handle halves in the deployed position, are in contact with the screen frame over a certain length so as to maintain the screen.
• the sieve frame and the sleeve halves will preferably have complementary profiles so as to complete the effectiveness of maintaining the ta is.
• 84 pads for depreciation vibrations will be trapped between the handle and the sieve in these areas and the distance between the plates 84 and the hinge pins 80 and 82 can be varied so as to vary the damping characteristics.
• the handle 12 consists of two identical halves 12i and 12s superimposed and held tight one on the other using a removable tubular handle 13. Each half is articulated at the base of the screen frame and can therefore be folded down on either side of the screen.
• the sieve To ensure a firm hold of the sieve, it has an extension 15 sandwiched between the two sleeve halves 12i and 12s. In both cases, the articulation points of the handle halves are located at a distance from each other in order to obtain good resistance to torsion.
• the frame 18 of the racket sieve 14 is extended by two arms 86, 88 which end against the handle 12.
• the ends of the arms 86, 88 are notched and cooperate with pins 90, 92 protruding stop on the two sides of the handle.
• the handle 12 extends to contact with the base 94 of the frame, on which it is fixed by a removable means, for example a cam or eccentric device 96 fixed to the end of the handle and cooperating with a rod with head 98 set in the frame.
• a hinge pin 100 is mounted 'between the frame of the arm and the sleeve and ensures a joint offset to allow a handle folding "flat" against the sieve.
• the hinge pin 100 has substantially the shape of an omega, and has a central articulation section 100c crossing the handle and defining a first articulation axis XX, and two external articulation sections 100e crossing the arms of the frame and defining a second articulation axis culation YY.
• the handle 12 when the handle 12 is detached from the frame, by release of the cam device 96, the handle can be tilted in order to disengage the pins 90, 92 from the end notches of the arms 86, 88 at first, then continue tilting the handle until it is folded against the sieve 14.
• Figures 16a to 16d schematically illustrate the successive phases of tilting and folding the handle.
• Figure 16a start of tilting Figure 16b: nipple release Figure 16c: folding in progress Figure 16d: folding down completed.
• Figure 16a start of tilting Figure 16b: nipple release Figure 16c: folding in progress Figure 16d: folding down completed.
• FIG. 17 the arrangement of FIG. 15 has been reversed, that is to say that the handle ends in a fork with two arms 102 and 104 which join the frame of the sieve at two spaced points 106 and 108 and the frame has a longitudinal extension 110 which joins the handle at the junction of the two arms 102 and 104.
• This arrangement improves the torsional behavior of the handle relative to the sieves.
• the articulation is produced by means of a pin 100 of articulation with offset of axis identical to that which has just been described in relation to FIG. 15.
• Devices for removable fasteners, not shown are provided at the ends of the arms as well as at the end of the extension.
• the elements intended for damping vibrations in all the embodiments, can be produced interchangeably, the racket being provided with a set of pads or other vibration damping elements having characteristics. different and that the user can choose according to the desired result. In some cases, it may use several elements to combine their characteristics.

Landscapes

• Health & Medical Sciences (AREA)
• General Health & Medical Sciences (AREA)
• Physical Education & Sports Medicine (AREA)
• Toys (AREA)
• Pivots And Pivotal Connections (AREA)
• Purses, Travelling Bags, Baskets, Or Suitcases (AREA)

Priority Applications (1)

Applications Claiming Priority (4)

Publications (2)

Family

ID=26224345

Family Applications (1)

Country Status (7)

Families Citing this family (30)

Family Cites Families (9)

• 1986
  • 1986-01-24 AU AU53197/86A patent/AU590539B2/en not_active Ceased
  • 1986-01-24 CA CA000500369A patent/CA1260979A/fr not_active Expired
  • 1986-01-24 JP JP61500807A patent/JPH066178B2/ja not_active Expired - Lifetime
  • 1986-01-24 US US06/910,396 patent/US4746119A/en not_active Expired - Lifetime
  • 1986-01-24 EP EP86900791A patent/EP0211027B1/de not_active Expired
  • 1986-01-24 DE DE8686900791T patent/DE3665815D1/de not_active Expired
  • 1986-01-24 WO PCT/FR1986/000024 patent/WO1986004251A1/fr not_active Ceased

Non-Patent Citations (1)

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