JP2007021120A - Roller ball exercise instrument - Google Patents

Roller ball exercise instrument Download PDF

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JP2007021120A
JP2007021120A JP2005228793A JP2005228793A JP2007021120A JP 2007021120 A JP2007021120 A JP 2007021120A JP 2005228793 A JP2005228793 A JP 2005228793A JP 2005228793 A JP2005228793 A JP 2005228793A JP 2007021120 A JP2007021120 A JP 2007021120A
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roller ball
base
roller
spherical bearing
sole
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Tachio Hisagai
多千男 久貝
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a roller ball exercise instrument which trains a balance feeling of the body by standing with both legs fixed, enables movements of moving back and forth, moving left and right, reversing, turning or the like, and enables the exercises of adduction and abduction, expansion and contraction or the like of an ankle, a knee and a hip joint. <P>SOLUTION: The roller ball exercise instrument is equipped with a pedestal disposed at a lower side of a sole table fixed to the sole and the roller ball of which the top part is projected from the pedestal, and is equipped with a roller ball storing section formed by making a recess in the pedestal, two or more spherical bearing storing sections, the spherical bearings having elastic bodies in the bottom section of the storing sections and stored to have the top parts projected, the roller ball stored in the roller ball storing section, a roller ball stabilizer of which the aperture section is opened to protrude the top part of the roller ball, and a pressing member equipped with an annular receiving plate section and a fixing means. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は両足に装着するローラーボールを用いたローラーボール運動具に関するものであり、更に、詳細には、ローラーボールと複数の球状ベアリングとの特性を生かして平面上のあらゆる角度で、足首、膝、股関節の内外転、屈伸等の運動、又は、身体のバランス運動を容易に行うことができる簡易なローラーボール運動具に関するものである。  The present invention relates to a rollerball exercise tool using a rollerball worn on both feet, and more particularly, to an ankle, a knee at any angle on a plane by utilizing the characteristics of the rollerball and a plurality of spherical bearings. Further, the present invention relates to a simple roller ball exerciser that can easily perform exercises such as inversion and flexion of a hip joint, bending and stretching, or balance exercise of the body.

従来、この種の運動具としてはローラースケートがあり、ローラースケートは回転軸を中心に備えた車輪状のローラーを用いて、競技等も行われるものであるが、前後方向のみに移動が容易な構造と成っているもので、左右方向の移動や反転、回転運動や、前後左右の身体のバランスの鍛錬や運動を誰でもが容易に購入して使用でき且つ簡易な運動具は無かった。  Conventionally, as this type of exercise equipment, there is a roller skate, and the roller skate is used for a competition using a wheel-shaped roller with a rotation axis as the center, but it can be easily moved only in the front-rear direction. There are no simple exercise tools that anyone can easily purchase and use for left and right movement, reversal, rotational movement, and training and exercise of balance between the front and rear, left and right.

例えば、変形性膝関節症の予防のための訓練を的確に行うものとして、左右の足を載せるための左右一対のステップ４，４と、各ステップ４を夫々前後方向にスライド自在とするとともに鉛直軸回りの回転が自在となっている左右一対のスライダー３，３と、両スライダー３，３を前後方向に直進往復移動する移動手段とを備える。前後動に加えてスライダー３の鉛直軸回りの回転により内転・外転の動きを加えることができるもの（特許文献１参照）や、リハビリ運動を安全に行なうことが出来るダンパー付リハビリ装置を提供するものとして、負荷を与えてリハビリするリハビリ装置（３４）において、基台（７）に、バネ（６）等でなる収縮部材、又は重錘（２３）等でなる重力部材で構成された負荷抵抗（５）と、負荷抵抗（５）に連結され人が作用する装着具（２）とが設けられてなり、前記装着具（２）の移動速度を制動するダンパー又はブレーキが、負荷抵抗（５）の出力部位側と基台（７）側とに亘って設けられ、装着具（２）が往復動のうち復動する時にゆっくり復動し、ダンパーは、ピニオン（１３）と支持アーム（１２）とに亘って設けられるロータリーダンパー（１５）で構成されるダンパー付リハビリ装置であるもの（特許文献２参照）や、踏み板の角度調節を円滑に無段階に行うことができ、しかも身体を安定的に支承できる脚部ストレッチ具を得るものとして、フロア上に置くことができる基台１の後部に、左右の足をそれぞれ乗せることができる一対の踏み板３Ｌ，３Ｒを傾動可能に支持し、前記基台１及び前記踏み板３Ｌ，３Ｒの何れか一方に対して独立手動操作可能に設けた一対の送りねじ９Ｌ，９Ｒに可動コマ１０Ｌ，１０Ｒをねじ込み、これらの可動コマ１０Ｌ，１０Ｒがそれぞれ同時に接触できる固定側傾斜カム４Ｌ，４Ｒ及び可動側傾斜カム５Ｌ，５Ｒを前記基台１及び前記踏み板３Ｌ，３Ｒに設けた脚部ストレッチ具（特許文献３参照）等が開示されている。
特開２００３−１２６１９１号公報 特開２００３−２９０３８７号公報 特開２００３−２９９７４９号公報 For example, as an accurate training for the prevention of knee osteoarthritis, a pair of left and right steps 4 and 4 for placing the left and right feet and each step 4 are slidable in the front-rear direction and vertically It includes a pair of left and right sliders 3 and 3 that can freely rotate around an axis, and a moving means that reciprocally moves both sliders 3 and 3 back and forth. Providing a rehabilitation device with a damper that can add inward and outward motions by rotating the slider 3 around the vertical axis in addition to forward and backward movement (see Patent Document 1) and a rehabilitation exercise that can be safely performed In the rehabilitation device (34) that rehabilitates by applying a load, a load composed of a contracting member made of a spring (6) or the like or a gravity member made of a weight (23) or the like on the base (7) A resistance (5) and a mounting tool (2) connected to the load resistance (5) and acting by a person are provided, and a damper or a brake for braking the moving speed of the mounting tool (2) is provided with a load resistance ( 5) is provided across the output part side and the base (7) side, and when the mounting tool (2) moves back and forth in the reciprocating motion, it slowly moves backward, and the damper is moved to the pinion (13) and the support arm ( 12) A rehabilitation device with a damper composed of a reed damper (15) (see Patent Document 2) and leg stretch that can smoothly adjust the tread plate angle steplessly and can support the body stably As a tool for obtaining a tool, a pair of footboards 3L and 3R on which the left and right feet can be placed are supported in a tiltable manner on the rear part of the base 1 that can be placed on the floor, and the base 1 and the footboard 3L are supported. , 3R are screwed into a pair of feed screws 9L, 9R that can be independently operated manually, and fixed-side inclined cams 4L, 10R, 10R can be simultaneously contacted with the movable pieces 10L, 10R, respectively. A leg stretcher (see Patent Document 3) in which 4R and movable-side inclined cams 5L and 5R are provided on the base 1 and the footboards 3L and 3R is disclosed.
JP 2003-126191 A JP 2003-290387A JP 2003-299749 A

然し乍ら、前述の特許文献１では、前後方向にスライド自在とするとともに鉛直軸回りの回転が自在となっている左右一対のスライダー３，３とを備えており、前後方向と鉛直軸回りの回転は自在となっているものであるが、図１に図示されるように、パーツの数が多く大掛かりな装置であり、個人単位で備えることは困難なものであり、更に、特許文献２では、安全にリハビリ運動を行うことは可能であるが、足の往復運動のみであり、左右方向やバランス運動はできず、更には、大掛かりな装置であり、個人単位で備えることは困難なものであり、加えて、特許文献３では、踏み板３Ｌ，３Ｒを踏んで足首の上下運動を行うには好適なものであるが、前後左右の移動や、バランス運動を行うことはできないものである。  However, the above-described Patent Document 1 includes a pair of left and right sliders 3 and 3 that are slidable in the front-rear direction and are rotatable about the vertical axis. Although it is free, as shown in FIG. 1, it is a large-scale device with a large number of parts, and it is difficult to provide in individual units. It is possible to perform rehabilitation exercises, but it is only reciprocating movement of the foot, it can not perform left and right direction and balance movement, and it is a large device, it is difficult to prepare for individual units, In addition, Patent Document 3 is suitable for moving the ankle up and down by stepping on the footboards 3L and 3R, but cannot move back and forth and right and left or perform a balance exercise.

本発明のローラーボール運動具は、前述の課題に鑑み、鋭意研鑽の結果、足裏に固定する固定手段を有した足裏台と、足裏台の下方に膨出させて固定した基台と、基台に凹設したローラーボール収納部と、ローラーボール収納部に凹設した複数の球状ベアリング収納部と、複数の球状ベアリング収納部の底部に内置した弾性体を介装すると共に頂部が突出するように収納した球状ベアリングと、複数の球状ベアリングに当接させてローラーボール収納部に収納したローラーボールと、ローラーボールの回転を安定させると共に頂部が突出するように開口部を開口させたローラーボール安定板と、ローラーボール安定板を押圧するリング状の受け皿部と、受け皿部を基台に固定する固定手段を設けた押さえ部材と、を備えたものである。  In view of the above-described problems, the roller ball exercise tool of the present invention is a result of earnest study, and as a result of a keen study, a foot base having a fixing means for fixing to the sole, and a base that is swelled and fixed below the sole A roller ball storage part recessed in the base, a plurality of spherical bearing storage parts recessed in the roller ball storage part, and an elastic body placed in the bottom of the plurality of spherical bearing storage parts, and the top part protrudes A spherical bearing that is stored in such a manner, a roller ball that is in contact with a plurality of spherical bearings and that is stored in a roller ball storage portion, and a roller that has an opening so that the rotation of the roller ball is stabilized and the top protrudes A ball stabilizer, a ring-shaped saucer portion for pressing the roller ball stabilizer plate, and a pressing member provided with a fixing means for fixing the saucer portion to the base.

本発明のローラーボール運動具は、足裏に固定した足裏台の下方に基台を設け、該基台から頂部を突出させたローラーボールを備えたものであって、両足に固定して起立し身体のバランス感覚を鍛錬すると共に、前後、左右、反転、回転等の移動ができ、足首、膝、股関節の内外転、屈伸等の運動することを可能とするもので、画期的で実用性の高い発明である。  The roller ball exercise device of the present invention is provided with a base provided below the sole fixed to the sole and a roller ball having the top protruding from the base, and is fixed to both feet and stands upright. In addition to training the body's sense of balance, it can move back and forth, left and right, flip, rotate, etc., and can move ankles, knees, hip joints, flexion and extension, etc. It is a highly characteristic invention.

以下、本発明のローラーボール運動具の実施例の図面を用いて詳細に説明すると、図１は本発明のローラーボール運動具の実施例の装着状態の側面説明図であり、図２は本発明のローラーボール運動具の実施例の組立状態の断面説明図あでり、図３は本発明のローラーボール運動具の実施例の分解説明図である。  DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring now to the drawings of an embodiment of a rollerball exercise device of the present invention, FIG. 1 is a side view illustrating a mounted state of an embodiment of the rollerball exercise device of the present invention, and FIG. FIG. 3 is an exploded sectional view of an embodiment of the roller ball exercise tool of the present invention, and FIG. 3 is an exploded view of the embodiment of the roller ball exercise tool of the present invention.

本発明は両足に装着するローラーボールを用いたローラーボール運動具に関するものであり、更に、詳細には、ローラーボールと複数の球状ベアリングとの特性を生かして平面上のあらゆる角度で、足首、膝、股関節の内外転、屈伸等の運動、又は、身体のバランス運動を容易に行うことができる簡易なローラーボール運動具に関するものであり、足裏にずれないように固定する固定手段１ａを有した足裏台１と、該足裏台１の土踏まず位置の直下の下方に膨出させて固定した基台２と、該基台２の下面に開口させて凹設したローラーボール収納部３と、該ローラーボール収納部３に開口させて凹設した複数の球状ベアリング収納部４と、該複数の球状ベアリング収納部４の底部に上方に弾性を付与するように内置した弾性体４ａを介装すると共に開口から頂部が突出するように夫々収納した球状ベアリング５と、該複数の球状ベアリング５の頂部に当接させて前記ローラーボール収納部３に回転自在に収納したローラーボール６と、該ローラーボール６の回転を安定させると共に頂部が突出するように開口部を開口させたローラーボール安定板７と、該ローラーボール安定板７の周辺を押圧するリング状の受け皿部８と、該受け皿部８を前記基台２に固定する固定手段９ａを設けた押さえ部材９と、を備えたことを特徴とするものである。  The present invention relates to a rollerball exercise tool using a rollerball worn on both feet, and more particularly, to an ankle, a knee at any angle on a plane by utilizing the characteristics of the rollerball and a plurality of spherical bearings. Further, the present invention relates to a simple rollerball exercise device that can easily perform hip joint inward and outward rotation, bending and stretching exercises, or body balance exercise, and has a fixing means 1a for fixing it so as not to slip to the sole. A foot base 1, a base 2 bulging and fixed immediately below the arch position of the foot base 1, and a roller ball storage portion 3 opened and recessed in the lower surface of the base 2; A plurality of spherical bearing storage portions 4 that are open and recessed in the roller ball storage portion 3 and an elastic body 4a that is placed in the bottom of the plurality of spherical bearing storage portions 4 so as to give elasticity upward are interposed. A spherical bearing 5 that is housed so that the top part protrudes from the opening, a roller ball 6 that abuts against the top part of the plurality of spherical bearings 5 and is rotatably housed in the roller ball housing part 3, and the roller ball A roller ball stabilizing plate 7 whose opening is opened so as to stabilize the rotation of the roller 6 and the top portion protrudes, a ring-shaped receiving plate portion 8 that presses the periphery of the roller ball stabilizing plate 7, and the receiving plate portion 8 And a pressing member 9 provided with fixing means 9a for fixing to the base 2.

即ち、本発明のローラーボール運動具の足裏台１は一般的な靴底状のもので、足裏にずれないように固定する固定手段１ａを有したもので、固定手段１ａは靴のようにカバーにしたり、図１に図示するように、ベルトで固定して凹凸、立設リブ状のもの形成することにより、ずれないようにしたもので構わないものである。  That is, the sole 1 of the roller ball exercise tool of the present invention has a general shoe sole shape, and has a fixing means 1a for fixing so as not to be displaced to the sole. The fixing means 1a is like a shoe. As shown in FIG. 1, it is possible to prevent it from slipping by fixing it with a belt to form a concave-convex shape and a standing rib shape.

そして、基台２は円錐截台状のもので、底面を足裏台１の土踏まず位置の直下に接着や固定具により強固に固定させ、下方に膨出しているもので、後述するローラーボール収納部３や複数の球状ベアリング５収納部４を凹設しているものである。  The base 2 is in the shape of a truncated cone, and the bottom surface is firmly fixed to the bottom of the sole 1 by an adhesive or a fixture and bulges downward. The part 3 and the plurality of spherical bearings 5 housing part 4 are recessed.

次いで、ローラーボール収納部３は基台２の下面に開口させて凹設したものであり、後述するローラーボール６を複数の球状ベアリング５を介装させて収納するもので、略半球状に形成しても、図２に図示する如く、立方形状に形成しても構わないものである。  Next, the roller ball storage unit 3 is opened and recessed in the lower surface of the base 2 and stores a roller ball 6 to be described later with a plurality of spherical bearings 5 interposed therebetween, and is formed in a substantially hemispherical shape. However, it may be formed in a cubic shape as shown in FIG.

次に、複数の球状ベアリング収納部４はローラーボール収納部３に開口させて凹設しているもので、後述するローラーボール６をローラーボール収納部３に接触しないように下方及び側方から支持するもので３〜７ヵ所程度が良好なものである。  Next, the plurality of spherical bearing storage portions 4 are opened and recessed in the roller ball storage portion 3 and support a roller ball 6 described later from below and from the side so as not to contact the roller ball storage portion 3. About 3 to 7 places are good.

更に、夫々の球状ベアリング５は複数の球状ベアリング収納部４の開口から頂部が突出するように夫々収納されものであるが、球状ベアリング収納部４の底部には板バネ又はコイルスプリング等の弾性体４ａを内置することによって、夫々の球状ベアリング５を上方に位置させるように弾性を付与しているものである。  Further, each spherical bearing 5 is accommodated such that the top part protrudes from the openings of the plurality of spherical bearing accommodating parts 4, and an elastic body such as a plate spring or a coil spring is provided at the bottom of the spherical bearing accommodating part 4. By placing 4a, elasticity is imparted so that each spherical bearing 5 is positioned upward.

そして、ローラーボール６は前記複数の球状ベアリング５の頂部に球面を当接させてローラーボール収納部３に収納したことにより、全方向に回転自在としているものである。  The roller ball 6 is rotated in all directions by having a spherical surface abutted on top of the plurality of spherical bearings 5 and stored in the roller ball storage unit 3.

更には、ローラーボール安定板７はローラーボール６の直径より小径とした開口部７ａを開口させて、ローラーボール６の頂部が突出するようにしており、ローラーボール６の遊動回転を安定させるものである。  Further, the roller ball stabilizing plate 7 opens an opening 7a having a diameter smaller than the diameter of the roller ball 6 so that the top of the roller ball 6 protrudes, and the idle rotation of the roller ball 6 is stabilized. is there.

次に、受け皿部８はローラーボール安定板７の周辺を押圧するリング状のもので、中央にはローラーボール６の頂部が突出するように開口しているものである。  Next, the tray portion 8 is a ring-shaped member that presses the periphery of the roller ball stabilizing plate 7 and is open at the center so that the top portion of the roller ball 6 protrudes.

更に、押さえ部材９は受け皿部８を基台２に固定するもので、固定手段９ａは実施例では外周辺に複数のビス孔を穿設して複数のビスで固定しているものである。  Further, the pressing member 9 fixes the tray portion 8 to the base 2, and the fixing means 9a has a plurality of screw holes formed in the outer periphery in the embodiment and fixed by a plurality of screws.

本発明のローラーボール運動具は、ローラーボール６の頂部で体重を支えることになりアンバランスな状態と成り易いものであるが、足裏台１のつま先部や踵部を床面に着けることによりブレーキがかかり安全に使用できるものである。  The rollerball exercise device of the present invention tends to be in an unbalanced state because the weight is supported at the top of the rollerball 6, but by attaching the toes and buttocks of the sole 1 to the floor surface. The brake is applied and it can be used safely.

本発明のローラーボール運動具は、両足に装着して腰掛けた状態や起立して手摺り等を把持した状態で、足首、膝、股関節の内外転、屈伸等の運動ができ、更には、両手を離して身体のバランス運動を容易に行うことができ、また、平面上のあらゆる角度で走行することも可能で、前後左右方向の移動や反転、回転運動や、前後左右の身体のバランスの鍛錬や運動を誰でもが容易にできるものである。  The rollerball exercise device of the present invention is capable of exercising such as ankle, knee, hip joint inversion and extension, bending and stretching in a state of sitting on both feet and standing and gripping a handrail. The body can be easily balanced and can be driven at any angle on the plane, moving forward and backward, left and right, turning, rotating, and training the balance of the body. And anyone can easily exercise.

図１は本発明のローラーボール運動具の実施例の装着状態の側面説明図である。  FIG. 1 is an explanatory side view of a mounted state of an embodiment of the roller ball exercise tool of the present invention. 図２は本発明のローラーボール運動具の実施例の組立状態の断面説明図である。  FIG. 2 is a cross-sectional explanatory view of the assembled state of the embodiment of the roller ball exercise tool of the present invention. 図３は本発明のローラーボール運動具の実施例の分解説明図である。  FIG. 3 is an exploded explanatory view of an embodiment of the roller ball exercise tool of the present invention.

符号の説明Explanation of symbols

１ 足裏台
１ａ 固定手段
２ 基台
３ ローラーボール収納部
４ 球状ベアリング収納部
４ａ 弾性体
５ 球状ベアリング
６ ローラーボール
７ ローラーボール安定板
７ａ 開口部
８ 受け皿部
９ 押さえ部材
９ａ 固定手段DESCRIPTION OF SYMBOLS 1 Foot stand 1a Fixing means 2 Base 3 Roller ball storage part 4 Spherical bearing storage part 4a Elastic body 5 Spherical bearing 6 Roller ball 7 Roller ball stabilizer 7a Opening part 8 Sauce part 9 Holding member 9a Fixing means

Claims (1)

足裏にずれないように固定する固定手段を有した足裏台と、該足裏台の土踏まず位置の直下の下方に膨出させて固定した基台と、該基台の下面に開口させて凹設したローラーボール収納部と、該ローラーボール収納部に開口させて凹設した複数の球状ベアリング収納部と、該複数の球状ベアリング収納部の底部に上方に弾性を付与するように内置した弾性体を介装すると共に開口から頂部が突出するように夫々収納した球状ベアリングと、該複数の球状ベアリングの頂部に当接させて前記ローラーボール収納部に回転自在に収納したローラーボールと、該ローラーボールの回転を安定させると共に頂部が突出するように開口部を開口させたローラーボール安定板と、該ローラーボール安定板の周辺を押圧するリング状の受け皿部と、該受け皿部を前記基台に固定する固定手段を設けた押さえ部材と、を備えたことを特徴とするローラーボール運動具。  A foot base having a fixing means for fixing so that it does not shift to the sole, a base swelled and fixed immediately below the arch position of the foot base, and an opening on the lower surface of the base Recessed roller ball storage portion, a plurality of spherical bearing storage portions opened in the roller ball storage portion and recessed, and an elasticity installed in the bottom of the plurality of spherical bearing storage portions so as to give elasticity upward A spherical bearing that interposes the body and is housed such that the top protrudes from the opening, a roller ball that abuts against the top of the plurality of spherical bearings and that is rotatably housed in the roller ball housing, and the roller A roller ball stabilizer plate that stabilizes the rotation of the ball and has an opening so that the top protrudes, a ring-shaped saucer portion that presses the periphery of the roller ball stabilizer plate, and the saucer Roller ball sporting goods, characterized in that it and a pressing member provided with fixing means for fixing to the base a.
JP2005228793A 2005-07-11 2005-07-11 Roller ball exercise instrument Pending JP2007021120A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102716580A (en) * 2012-06-29 2012-10-10 四川大学 Bottom plate for skating shoe
US9242169B2 (en) 1999-04-01 2016-01-26 Heeling Sports Limited Heeling apparatus
US10945485B2 (en) 2012-08-03 2021-03-16 Heeling Sports Limited Heeling apparatus
US11576837B2 (en) 2019-10-03 2023-02-14 Jfxd Trx Acq Llc Multi-zonal roller and method of use thereof

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Publication number Priority date Publication date Assignee Title
JPS4895781U (en) * 1972-02-15 1973-11-14
JPS6191623U (en) * 1984-11-21 1986-06-13
JPS61130277U (en) * 1985-02-04 1986-08-14
JPS62147116A (en) * 1985-12-21 1987-07-01 メツセルシユミツト−ベルコウ−ブロ−ム・ゲゼルシヤフト・ミト・ベシユレンクテル・ハフツング Bearing device
JPH05502612A (en) * 1990-10-04 1993-05-13 エクストランド，ベングト ball roller skates
JP2001050293A (en) * 1999-06-30 2001-02-23 Nacam France Sa Ball coupling device for two sliding shafts
US6293565B1 (en) * 1998-12-04 2001-09-25 Netminders, Inc. Roller hockey goalie skate

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4895781U (en) * 1972-02-15 1973-11-14
JPS6191623U (en) * 1984-11-21 1986-06-13
JPS61130277U (en) * 1985-02-04 1986-08-14
JPS62147116A (en) * 1985-12-21 1987-07-01 メツセルシユミツト−ベルコウ−ブロ−ム・ゲゼルシヤフト・ミト・ベシユレンクテル・ハフツング Bearing device
JPH05502612A (en) * 1990-10-04 1993-05-13 エクストランド，ベングト ball roller skates
US6293565B1 (en) * 1998-12-04 2001-09-25 Netminders, Inc. Roller hockey goalie skate
JP2001050293A (en) * 1999-06-30 2001-02-23 Nacam France Sa Ball coupling device for two sliding shafts

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9242169B2 (en) 1999-04-01 2016-01-26 Heeling Sports Limited Heeling apparatus
US9776067B2 (en) 1999-04-01 2017-10-03 Heeling Sports Limited Heeling apparatus
CN102716580A (en) * 2012-06-29 2012-10-10 四川大学 Bottom plate for skating shoe
US10945485B2 (en) 2012-08-03 2021-03-16 Heeling Sports Limited Heeling apparatus
US11576837B2 (en) 2019-10-03 2023-02-14 Jfxd Trx Acq Llc Multi-zonal roller and method of use thereof

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