EP1260249B1 - Appareil de gymnastique à vérin pneumatique. - Google Patents
Appareil de gymnastique à vérin pneumatique. Download PDFInfo
- Publication number
- EP1260249B1 EP1260249B1 EP20020358010 EP02358010A EP1260249B1 EP 1260249 B1 EP1260249 B1 EP 1260249B1 EP 20020358010 EP20020358010 EP 20020358010 EP 02358010 A EP02358010 A EP 02358010A EP 1260249 B1 EP1260249 B1 EP 1260249B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- actuator
- chamber
- pneumatic
- exercise apparatus
- tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 230000001133 acceleration Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
- A63B21/00181—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices comprising additional means assisting the user to overcome part of the resisting force, i.e. assisted-active exercising
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
- A63B21/00058—Mechanical means for varying the resistance
- A63B21/00069—Setting or adjusting the resistance level; Compensating for a preload prior to use, e.g. changing length of resistance or adjusting a valve
- A63B21/00072—Setting or adjusting the resistance level; Compensating for a preload prior to use, e.g. changing length of resistance or adjusting a valve by changing the length of a lever
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
- A63B21/008—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices using hydraulic or pneumatic force-resisters
- A63B21/0085—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices using hydraulic or pneumatic force-resisters using pneumatic force-resisters
- A63B21/0087—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices using hydraulic or pneumatic force-resisters using pneumatic force-resisters of the piston-cylinder type
Definitions
- the present invention relates to a gymnastic apparatus or rehabilitation comprising a pneumatic cylinder, and in particular to a device with mobile counterweight and pneumatic counterbalance compensation cylinder.
- the technical field of the invention is that of the manufacture of apparatus for gymnastics with pneumatic cylinder and with mobile counterweights.
- the invention applies in particular - but not exclusively - to the apparatus of gymnastics comprising a device resistant to weight mounted movable substantially vertically, and further comprising a pneumatic cylinder of compensation, partial or total, of the mass of the moving weights.
- US Patent 5,147,263 discloses such an apparatus wherein the pneumatic cylinder comprises, arranged inside, a double-walled cylindrical body, a piston suspended on a weight-lifting cable upwards, which is slidably mounted vertical cylindrical chamber, and a vacuum pump capable of in depression the lower part of the chamber under the piston for, attracting the piston down, exerting an effort offsetting part of the weight mass.
- a disadvantage of this device is its large size resulting from the need to use a large surface piston to compensate for the level generally low depression caused by a rotor pump, the weakness depression being accentuated by the leakage resulting from the clearance provided around the piston; Another disadvantage is that this jack can only be used in vertical position.
- An object of the invention is to provide an improved gymnastic apparatus and which remedies, in part at least, the disadvantages of known apparatus.
- the invention consists in proposing a device for gymnastics incorporating a pneumatic jack, the jack having a piston mounted sliding in a first cylindrical chamber which is in direct communication with a second chamber, called attenuation chamber, whose volume is greater to that of the cylindrical chamber.
- the presence and the large volume of the attenuation chamber combined with means of direct communication between the two chambers, allow strongly limit the pressure fluctuations of the air contained in these chambers, particular pressure fluctuations resulting from an acceleration or Sudden deceleration of the piston, due in particular to a sudden variation of the effort exercised by a user of the device; these means therefore make it possible to avoid the appearance of "hard points" during a piston stroke in the chamber cylindrical, or at least to strongly limit them compared to the devices of gymnastics having a remote reserve of compressed air which is connected to the jack by a conduit preventing such direct communication.
- the volume of the attenuation chamber is at least five times greater than that of the chamber receiving the piston; preferably the value of the ratio of the volume of the second bedroom to that of the first bedroom is located in a beach ranging from 5 to 30, in particular in a range from 8 to 20.
- each of the two chambers is cylindrical (circular section (3), or, for reasons of space, any shape such as square or rectangular section), the first chamber being delimited by a first section of tube arranged inside a second tube section delimiting the second chamber, said tube sections being coaxial; preferably, in this case, the ratio of the radius of the second tube to the radius the first tube is in a range from 3 to 6, for example about 4; this allows to limit the size of the cylinder.
- the invention can be used with a vacuum pump arranged for being able to depress the said chambers, it is generally more advantageous to use an air compressor equipped with a compressed air buffer tank which is connected to said chambers by a conduit.
- the gymnastic apparatus comprises a divider device of stroke, such as a hoist, which is disposed between the user operated member and the device resistant to the cylinder and, if necessary, to the weight, this makes it possible to use a jack whose course and congestion are diminished; in addition, the displacement of air in the cylinder (in mass and in flow) is also decreased, which contributes to reducing the risk of sudden surges or depressions.
- a divider device of stroke such as a hoist
- the race divider may have a link, which may be a flexible link such as a cable or strap, which connects the organ to the device resistant.
- the cylinder of the apparatus according to the invention may be of the double-acting type, in order to constitute a jack resistant to the effort of the user or reducing the effort assistance;
- compressed air can be selectively cylinder chamber which is situated on the side opposite that of said first chamber, with respect to the cylinder piston; however, according to a preferred embodiment, the gymnastic apparatus comprises a single acting cylinder, at least two parts heavy sliding sliders substantially vertically along two guides, the cylinder rod extending parallel to the guides, equidistant from them, and the mobile heavy parts partly extending at least around the stem and the body cylinder; this provides a compact device and simple design.
- An advantage of the invention is to facilitate the implantation of the compressor to distance from the cylinder and the device, thanks to the effect of accumulation played by the chamber mitigation; this has the advantage of moving the noise source away from the user what is the compressor.
- FIG. 1 is a diagrammatic perspective view of an apparatus for gymnastics according to the invention which comprises two moving heavy parts vertically and a single jack effect adapted to compensate for the mass of these parts heavy.
- FIG. 2 is a diagrammatic sectional view of a simple jack the apparatus of Figure 1 and its compressed air supply circuit.
- FIG. 3 schematically illustrates another embodiment of an apparatus according to the invention.
- the apparatus 100 comprises an element 32 on which the user applies his effort; this bar-shaped element is mounted movably in rotation along the axis 99, via a bearing provided at its first end 98; the second end 97 of the bar 32 is integral with a first end a flexible transmission element 12, by a mechanical fastening 24.
- the element 12 consists of a cable or a strap, is secured to the structure fixed device 100 at its second end by a fastener 22; element 12 rolls and / or slides on two bearings or pulleys 96 integral with the fixed structure of the apparatus, and on a bearing or pulley 21 integral with the movable structure of the apparatus.
- the fixed structure of the apparatus comprises a base 95 able to rest on the ground, two vertical uprights 94 and an upper horizontal beam 93 receiving the fixing 22, these four pieces forming a kind of rectangular frame; two trees 92 are attached to this frame and serve to guide the mobile structure of the apparatus which is slidably mounted vertically with respect to the fixed structure.
- the mobile structure comprises two heavy parts 1a and 1b suspended by their respective upper end to a horizontal beam 28; the beam 28 is secured in the middle of the pulley 21 mounted free to rotate along the horizontal axis 91 thanks to a screed (not shown); the connection between the fixed structure and the structure mobile is ensured by two bushes or sliders 90 sliding respectively on the trees 92.
- the jack 2 comprises a body 2a resting by its base on the base 95, and a rod 2b whose upper end is secured to the beam 28 or in support against the lower face of it; when the cylinder is supplied with compressed air, the rod 2b exerts an ascending vertical force along the vertical axis 89 of symmetry of the part mobile device, so that the mass of the parts 1a and 1b is partly at least compensated, which requires less effort from the user to lift the parts heavy 1a, 1b; Moreover, the system constituted by the element 12, the pulleys 21, 96 and the fasteners 22, 24, form a kind of hoist which halves the effort of the user by comparison with the mass of weights 1a, 1b (after deduction of the assistance of the jack).
- This force splitter device also divides the stroke of the moving structure compared to the stroke of the end 24 linked to the bar 32, which causes also a doubled velocity of the moving structure - and hence the stem of the cylinder - in comparison with the speed of said end 24 of the element 12.
- the mass, the dimensions and the spacing on both sides of the axis 89 (according to which the cylinder exerts its force) parts 1a and 1b, are substantially identical, so that the mobile structure is substantially symmetrical and balanced with respect to this axis.
- the body 2a of the jack 2 comprises a section 40 of metal tube of axis 89, which is closed tightly at each end by two 41 and 42 dishes.
- the bottom bottom 41 is pierced with an orifice equipped with a device purge, while the upper bottom 42 is pierced with a central orifice 49 and two peripheral orifices: an orifice 43 for connecting a conduit 44 to a connection apparatus 45 for displaying the pressure prevailing in the chambers of the jack, and a port 46 allowing the entry into the cylinder chambers of compressed air by a compressor 48 and transported by a conduit 47.
- the rod 2b has at its upper end a connecting means 55 or bearing on the beam (28 FIG. 1), and is integral at its lower end with a piston 57 sliding in the tube 50 along the axis 89.
- Part 58 of the chamber delimited by the tube 50 which is located below of the piston 57 is in free communication, through the opening 51, with the chamber attenuation 59 delimited by the tube 40 and the funds 41, 42; this volume is filled compressed air delivered at 46 when the controls 61 or 65 are actuated.
- the portion 54 of the chamber defined by the tube 50 is located above the piston 57 is in free communication with the atmosphere thanks to the vents 56 whose cumulative area is preferably of the same order of magnitude as that of the section transverse of the chamber 54.
- a solenoid valve 60 allows, by action of the user on a command 61, supplying the chambers 58, 59 with compressed air delivered by the compressor 48, by through conduits 62, 63 and 47; conversely, the action of the user on a command 65 makes it possible to evacuate from these chambers the compressed air via the ducts 47, 66 and a solenoid valve 64.
- the height of the jack is chosen at a value close to that 18 of the heavy parts 1a, 1b ( Figure 1), and the end bottom of the tube 50 is positioned at a short distance (along the axis 89) of the bottom 41; however, this distance is chosen to be sufficient to avoid disrupting free movement between rooms 58 and 59.
- the tube 50 has an inside diameter of 45 mm and the tube 40 has an inside diameter of 180 mm; the cylinder has a height of 550 mm (including the rod in the retracted position) and a stroke of 400 mm, and the ratio of the volume of the chamber 59 to the volume of the cylindrical chamber 54, 58 in which the piston 57 slides, is about 15.
- a jack 2a, 2b similar to that of FIG. be used without moving weight to form a pneumatic resistant device of the apparatus, which opposes a vertical downward movement of the movable pulley 21 attached to the end of the rod 2b, when the user moves the operating member 32 according to the arrow 101.
- the flexible link 12 and its fixed fasteners 22 and mobile 24 form, with the fixed and movable pulleys 96 and 21, a device dividing by two the effort: the resistive force of the jack is twice that exerted by the user.
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biophysics (AREA)
- Orthopedic Medicine & Surgery (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Actuator (AREA)
- Manipulator (AREA)
- Rehabilitation Tools (AREA)
Description
Claims (10)
- Appareil (100) de gymnastique comportant un organe (32) de manoeuvre relié à un vérin pneumatique (2), le vérin comportant un piston (57) monté coulissant dans une première chambre (54, 58), caractérisé en ce que la première chambre est en communication directe avec une chambre d'atténuation (59) dont le volume est supérieur à celui de la première chambre.
- Appareil de gymnastique à vérin pneumatique selon la revendication 1, dans lequel la paroi de la première chambre comporte une ouverture (51) de communication avec la chambre d'atténuation, dont la section est au moins égale à celle de la première chambre.
- Appareil de gymnastique à vérin pneumatique selon la revendication 1 ou 2, dans lequel le volume de la chambre d'atténuation est au moins cinq fois supérieur à celui de la première chambre.
- Appareil de gymnastique à vérin pneumatique selon l'une quelconque des revendications 1 à 3, dans lequel chacune des deux chambres est cylindrique de section circulaire, la première chambre étant délimitée par un premier tronçon (50) de tube disposé à l'intérieur d'un deuxième tronçon de tube (40) délimitant la deuxième chambre, lesdits tronçons de tube étant coaxiaux.
- Appareil de gymnastique à vérin pneumatique selon la revendication 4, dans lequel le rapport du rayon du deuxième tube au rayon du premier tube est situé dans une plage allant de 3 à 6.
- Appareil de gymnastique à vérin pneumatique selon l'une quelconque des revendications 1 à 5, qui comporte un compresseur (48) d'air équipé d'un réservoir tampon d'air comprimé, qui est raccordé par un conduit (62, 63, 47) à ladite chambre (59) d'atténuation.
- Appareil de gymnastique à vérin pneumatique selon l'une quelconque des revendications 1 à 6, qui comporte un dispositif diviseur d'effort et de course entre l'organe (32) actionné par l'utilisateur et le dispositif résistant à vérin et le cas échéant à poids, lequel diviseur comporte un lien qui peut être un lien (12) flexible tel qu'un câble ou une sangle, qui relie l'organe (32) au dispositif résistant (1a, 1b, 2).
- Appareil de gymnastique à vérin pneumatique selon l'une quelconque des revendications 1 à 7, qui comporte au moins deux parties pesantes (1a, 1b) montées coulissantes sensiblement verticalement le long de deux guides (92), la tige (2b) du vérin s'étendant parallèlement aux guides, à égale distance de ceux-ci.
- Appareil de gymnastique à vérin pneumatique selon l'une quelconque des revendications 1 à 8, qui comporte au moins deux parties pesantes (1a, 1b) mobiles en translation verticale et qui s'étendent en partie au moins autour de la tige (2b) et du corps (2a) du vérin (2).
- Appareil de gymnastique à vérin pneumatique selon l'une quelconque des revendications 1 à 9, dans lequel le vérin (2) s'étend sous une poutre (28) à laquelle sont suspendues et/ou fixées deux parties pesantes (1a, 1b) mobiles en translation verticale.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0106692A FR2824741B1 (fr) | 2001-05-21 | 2001-05-21 | Appareil de gymnastique a verin pneumatique |
FR0106692 | 2001-05-21 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1260249A1 EP1260249A1 (fr) | 2002-11-27 |
EP1260249B1 true EP1260249B1 (fr) | 2005-12-21 |
Family
ID=8863516
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20020358010 Expired - Lifetime EP1260249B1 (fr) | 2001-05-21 | 2002-05-15 | Appareil de gymnastique à vérin pneumatique. |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1260249B1 (fr) |
DE (1) | DE60208112T2 (fr) |
FR (1) | FR2824741B1 (fr) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004062743A1 (fr) * | 2003-01-15 | 2004-07-29 | Greenhouse International Llc | Machine d'exercices |
WO2004062740A1 (fr) * | 2003-01-15 | 2004-07-29 | Greenhouse International Llc | Ensemble de resistance |
CN110652696A (zh) * | 2019-09-30 | 2020-01-07 | 宜春学院 | 一种多功能体育锻炼健身装置 |
CN113633925B (zh) * | 2021-08-13 | 2022-05-17 | 重庆医药高等专科学校 | 一种康复用墙壁拉力器 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH668193A5 (fr) * | 1986-04-24 | 1988-12-15 | Beat Dreier | Appareil de culture physique. |
GB2193901B (en) * | 1986-08-19 | 1990-10-24 | Wilson Sporting Goods | Exercise apparatus |
US5147263A (en) | 1990-07-30 | 1992-09-15 | Mueller King L | Pneumatic weight lift assist apparatus |
FR2686259A1 (fr) * | 1992-01-22 | 1993-07-23 | Therond Leon | Appareil pour exercices de musculation et procedes pour sa mise en óoeuvre. |
AU705011B2 (en) * | 1996-01-11 | 1999-05-13 | Hiroshi Kasuga | Kick type training equipment |
-
2001
- 2001-05-21 FR FR0106692A patent/FR2824741B1/fr not_active Expired - Fee Related
-
2002
- 2002-05-15 EP EP20020358010 patent/EP1260249B1/fr not_active Expired - Lifetime
- 2002-05-15 DE DE2002608112 patent/DE60208112T2/de not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
DE60208112D1 (de) | 2006-01-26 |
FR2824741A1 (fr) | 2002-11-22 |
EP1260249A1 (fr) | 2002-11-27 |
FR2824741B1 (fr) | 2003-07-04 |
DE60208112T2 (de) | 2006-09-14 |
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