US3356366A - Collapsibly supported platform with adjustable tensioning means - Google Patents

Collapsibly supported platform with adjustable tensioning means Download PDF

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Publication number
US3356366A
US3356366A US445373A US44537365A US3356366A US 3356366 A US3356366 A US 3356366A US 445373 A US445373 A US 445373A US 44537365 A US44537365 A US 44537365A US 3356366 A US3356366 A US 3356366A
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US
United States
Prior art keywords
mat
rope
uprights
frame
platform
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
Application number
US445373A
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English (en)
Inventor
Barthel Johann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
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Individual
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Filing date
Publication date
Priority claimed from AT307964A external-priority patent/AT245463B/de
Priority claimed from AT835764A external-priority patent/AT267383B/de
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US3356366A publication Critical patent/US3356366A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B5/00—Apparatus for jumping
    • A63B5/11—Trampolines
    • 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
    • A63B21/02—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices using resilient force-resisters
    • A63B21/023—Wound springs
    • 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
    • A63B21/02—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices using resilient force-resisters
    • A63B21/055—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices using resilient force-resisters extension element type
    • A63B21/0552—Elastic ropes or bands

Definitions

  • trampolines are well known devices which propel the user upwards by means of a force exerted by the resiliency of the base. Such trampolines have found wide use in acrobatics, gymnastics and high diving as well as in ordinary exercise and entertainment.
  • trampolines now in use are large, heavy and expensive devices. Even when they are collapsed their bulk is such that they can be handled only with a considerable amount of difficulty.
  • the rigid frame of known trampolines presents the user with a constant threat of injury.
  • the tension of the mat base cannot be adjusted to suit the particular user or particular exercise, as the adjusting apparatus permits only one or two settings in most cases, these settings being made with the aid of hooks.
  • the tension in the numerous springs or rubber cords which carry the mat can be eased during periods of non-use only by unhooking the supporting hooks, a process which is complicated and thus often not performed at all, even though such easing of tension would be of benefit in increasing the useful life of the apparatus.
  • the method of securing the resilient mat to the frame reduces the weight of the apparatus while increasing the resiliency of the entire structure.
  • the present invention operates without generating noise and has a longer period of use than do existing trampolines and is more easily disassembled and adjusted.
  • the structure of the present invention also enables the use of rubber cords of different thicknesses which was not possible in the earlier trampolines.
  • the gymnastic catapult may be constructed of steel, aluminum, various alloys or plastics.
  • the present invention combines simplicity, compactness of size, lightness of weight, etc. and offers the possibility of a large number of combinations and uses.
  • the present invention may have dimensions up to approximately 16 feet by feet, yet it may be collapsed to a size by which it can be readily accommodated in the luggage compartment of an automobile. Thus, it can be readily carried to any training area or camping ground for use thereat.
  • the gymnastic catapult according to this invention is provided with floats and may be placed on any water surface. Depending on the materials used the gymnastic catapult, herein described, weighs about onethird to one-half as much as a trampoline of corresponding size.
  • the present invention may also be used as a base for a tent.
  • the tension on the mat may be adjusted to the weight of the user and to the exercise to be performed. It is also possible to relieve all tension in the mat.
  • the gymnastic catapult consists of a plastic mat which is connected by rubber cords to a tubular frame which is carried by four uprights.
  • the uprights consist of levers, having arms of unequal length which are mounted on a collapsible tubular frame providing for pivotal movement in the two vertical planes which include the two diagonals of the frame.
  • the uprights are provided at their top ends with hooks, or similar fasteners, for a mat rope forming a rope frame to which the mat is connected by rubber cords.
  • hooks or similar fasteners are provided at the other end of these uprights for engaging a tension rope which pulls the lower ends of the uprights together and which is operable by a winch mounted on one of the uprights.
  • FIG. 1 is a perspective view of the gymnastic catapult showing it in use
  • FIG. 2 is a side elevational view of the apparatus shown in FIG. 1;
  • FIG. 3 is an end elevation of the apparatus shown in FIG. 1;
  • FIG. 4 is a top plan view of the apparatus shown in FIG. 1;
  • FIG. 5 is an enlarged view showing a detail of FIG. 3;
  • FIGS. 6 through 10 are side elevations showing the uprights in the form of pivoted levers
  • FIGS. 11 through 18 are top elevational and partial sectional views showing various means for suspending the mat, respective sections for FIGS. 12, 14, 16 and 18 being taken along lines 12-12, etc., in FIGS. 11, 13, 15 and 17;
  • FIGS. 19 through 24 show means for connecting the ends of the cord.
  • a gymnastic catapult comprising a tubular frame 4 which is supported by four uprights 1 upon which a mat 10 of plastic material is resiliently mounted by means of rubber cords 9.
  • the rubber cords 9 are connected to mat rope 8 by clamp 13.
  • the uprights consist of levers 1 having unequal arms which are pivotably connected to a collapsible tubular frame 4, which is composed of sections of selected length.
  • the levers 1 are pivotably movable in the vertical planes which contain the two diagonals of the frame.
  • the frame is stiffened by welded corners 5.
  • hooks or similar fasteners are provided securing a mat rope 8 to levers 1 thereby forming a rope frame.
  • the mat 10 preferably made of plastic material, is detaohably secured to this rope by means of the rubber cords 9.
  • levers 1 are provided with hooks or similar fasteners for engaging thereto a tension rope 7 which exerts a force upon the lower, and preferably longer lever arms, thereby pulling these arms toward each other. This force may be varied by the operation of winch 6 whichis mounted on one of the levers.
  • Each upright lever 1 is connected to the tubular frame 4 by a turnbuckle 12, to enable an equalization of the deflection of the uprights, and of the tension in the mat.
  • a turnbuckle 11 is incorporated into mat r-ope 8 so that the tension in the mat rope can be varied.
  • An adjustment scale is provided with the turnbuckle 11.
  • the plastic mat is preferably made of a nylon woven fabric coated with polyvinylchloride and is provided with perforations therethrough for the reduction of air drag.
  • the tubular frame 4 which separates the uprights is constructed of replaceable tubes of differing lengths.
  • the upright levers 1 are provided with connecting means which can be threadably engaged thereto for a detachable connection to the foot portion thereof.
  • the foot portion of the unright levers 1 so connected may consist of a plug 16, a steel spike 17, a base plate 18 provided with bores for fastening screws, or a float 21. (See FIGS. 6-10).
  • Float 21 is connected to lever 1, by threaded stud 19 which threadably engages threadable member 20. Member 20 is then screwed to the lower end of lever 1 as shown in FIG. 10.
  • the gymnstic catapult may be floated, so that the catapult may be used as an adjunct to water sports.
  • the components of the catapult, according to this invention, are detachably connected so that the disassembled catapult can be readily transported in the luggage compartment of an ordinary sized automobile.
  • the levers 1 are provided with bores or similar fastening means, so that the levers may be detachably connected to tent poles 14 (see FIG. In this mode of operation, the gymnastic catapult may also be used in the pitching of tents, particularly when the mat has been rendered non-resilient.
  • the mat rope 8 is optionally provided with ropes 9a for a non-resilient support of the mat 10.
  • the tension of the tension rope 7 may be changed by operation of the winch 6 which is mounted on a lever 1.
  • the operation of the winch causes the lower arm of lever 1 to swing inwardly and the upper arm to swing outwardly around pivots 3 on frame 4 so that the rubber cords 9 suspending the mat are stressed.
  • the rope 8 is disposed above the frame 4 and constitutes a resilient guard for the frame.
  • the rubber cords 9 and their carrying means, as well as the entire area around the mat 10, are covered with a loose nylon netting 15.
  • the top portions of the levers 1, the mat rope 8 and the other top portions of the gymnastic catapult are upholstered with leather-covered foamed plastic materials, in order to prevent accidents.
  • the flexible frame herein provided provides for a superiof resiliency of the mat.
  • the upwardly thrusting force exerted on the user is greater than that found in ordinary trampolines. This increased force enables the user to perform, with greater ease and skill, a series of complicated exercises such as a triple somersault.
  • Rubber cord 9 by which the mat is twice elastically connected to the mat rope 8, produces a resilient effect because of the material used in the cord and because of its suspension from the mat rope. As shown in FIGS. 11, 13, and 17, the rubber cord 9 forms a U-shaped bend. At its bight, this cord is directly or indirectly hooked into a holder 26 made of plastic material.
  • FIGS. 11 and 17 show a direct connection between the cord and the holder.
  • FIGS. 13 and 15 show an indirect connection using a looped leather strap 27.
  • the plastic holder may consist of a roller or may consist of a roller 26 having an extension 260 (see FIGS. 17, 18) or a collar 26b (see FIGS. 15, 16).
  • the holder so provided, carries a strap support in the form of a transverse rod 25, a tube 25a or a similar component, which supports mat 10 extending at right angles thereto.
  • a mat strap 10 additionally directly engages the plastic holder 26 or 26a (see FIGS. 13, 14), which is provided with an extension.
  • the two parallel ends of the rubber cord 9 are connected to each other by a connecting plate 23 which extends at right angles to them and is made preferably of a plastic material.
  • This plate 23 has two conical openings (see FIGS. 20 and 21), through which extend the two ends of the cord. These two conical openlngs are parallel to each other and have their narrow faces positioned toward the end of the cord.
  • FIGS. 12, 14, 16 and 18 are respective partial sectional views taken from FIGS. 11, 13, 15 and 17.
  • a ring 24 (see FIGS. 11 and 22-24), is mounted on the end portion of each cord and is disposed between the conical wall surface of the opening 23 and the cord 9.
  • Ring 24 preferably consists of rubber and has a circular cross section. The tension of the mat pulls the ring into the opening where it is clamped between the conical wall and the cord thereby providing a firm connection.
  • FIGS. 23 and 24 illustrate other possible means of connecting the ends of the cord 9.
  • plate 23a has threadably engageable surfaces so that the plates may be connected to one another to achieve a greater length of cord.
  • plate 23b has a hooked portion thereon adapted to directly engage mat rope 8.
  • a platform and support structure comprising: a tubular frame, four uprights supporting said frame, said upright comprising levers mounted to said tubular frame in a manner permitting pivotal movement in the two vertical planes which include the diagonals of said frame; a mat made of flexible material; a fastener connected to the top end of each of said uprights; a mat rope connected to said fasteners forming a rope frame to which said mat is connected; a plurality of cord-like means connecting said mat to said mat rope; a tension rope connected to the other end of said uprights; and means including a winch mounted on one of said uprights to vary the tension in said tension rope.
  • a platform and support structure according to claim 3 wherein said tubular frame comprises frame sides comprised of a plurality of telescoping sections.
  • a platform and support structure comprising rubber cords which are formed in the shape of a U, and further comprising a plastic holder provided with a strap support extending at right angles thereto; a mat strap connected to said mat and engaged to said holder; a connecting plate having two conical openings having the ends of said cord extending through said openings, a ring mounted on each cord end portion and disposed between said cord and said opening and a fastener to which said connecting plate is detachably connected.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Tents Or Canopies (AREA)
  • Manipulator (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
  • Laminated Bodies (AREA)
US445373A 1964-04-09 1965-04-05 Collapsibly supported platform with adjustable tensioning means Expired - Lifetime US3356366A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT307964A AT245463B (de) 1964-04-09 1964-04-09 Turnkatapult
AT835764A AT267383B (de) 1964-10-01 1964-10-01 Befestigung für Gummischnüre, insbesondere für Turngeräte

Publications (1)

Publication Number Publication Date
US3356366A true US3356366A (en) 1967-12-05

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
US445373A Expired - Lifetime US3356366A (en) 1964-04-09 1965-04-05 Collapsibly supported platform with adjustable tensioning means

Country Status (6)

Country Link
US (1) US3356366A (ko)
BE (1) BE660504A (ko)
CH (1) CH427607A (ko)
FR (1) FR1450459A (ko)
GB (1) GB1056195A (ko)
NL (1) NL6502642A (ko)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3635471A (en) * 1969-02-17 1972-01-18 Charles D Caron Controlled trampoline structure
US3767192A (en) * 1970-09-04 1973-10-23 Idema Ingf Trampoline
US4569515A (en) * 1979-05-16 1986-02-11 Gordon Donald W Exercise structure and ball game
FR2811901A1 (fr) * 2000-07-20 2002-01-25 Gymnova Ensemble de systemes d'ameliorations pour trampoline a usage sportif
US6648799B2 (en) * 2001-04-26 2003-11-18 David Hall Foldable trampoline
US20050130804A1 (en) * 2001-04-26 2005-06-16 David Hall Transportable trampoline system
US20090090060A1 (en) * 2007-10-01 2009-04-09 Kennett Gmbh Doorvalbeveiliging
US20140057758A1 (en) * 2012-08-27 2014-02-27 Anthony Mack Device for strengthening, improving range of motion, improving flexibility in ankle joints and rehabilitating injured ankle joints
US20170043211A1 (en) * 2012-08-27 2017-02-16 Prism Alliance Group Inc. Device and method for strengthening and rehabilitating the ankle joint
US20170050064A1 (en) * 2014-05-06 2017-02-23 Masato Ikegami Trampoline assembly having adjustable resilient members
WO2017127899A1 (en) * 2016-01-27 2017-08-03 Action Sports Equipment Pty Ltd Trampoline equipment and methods
WO2017191119A1 (de) * 2016-05-02 2017-11-09 Angehrn Ag Umformtechnik Befestigungsvorrichtung für trampolin
USD817157S1 (en) 2016-08-15 2018-05-08 Angehrn Ag Umformtechnik Cable hook
USD851190S1 (en) 2016-12-09 2019-06-11 Action Sports Equipment Pty Ltd. Trampoline tensioner
US10617901B2 (en) 2014-12-16 2020-04-14 Angehrn Ag Umformtechnik Frame structure for a mini trampoline

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0106184A1 (de) * 1982-09-20 1984-04-25 Cosimo Salis Ballspieltor mit Zielübungsvorrichtung
GB8804782D0 (en) * 1988-03-01 1988-03-30 Sutcliffe Group Ltd Structures for supporting load in tension
FR2684882B1 (fr) * 1991-12-16 1994-02-18 Gymnova Liaison souple pour trampoline encastre dans une fosse de reception destinee aux sports acrobatiques.
DE10018865A1 (de) * 1999-04-14 2000-11-09 Eurotramp Trampoline Kurt Hack Fuss für Trampoline
EP2535088A1 (en) * 2011-06-14 2012-12-19 Bounz BV io Trampoline
PT3072560T (pt) 2015-03-26 2022-05-02 Fun Spot Mfg Llc Sistemas de trampolim e métodos de fabrico e utilização dos mesmos

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US527594A (en) * 1894-10-16 Safety-net
US978447A (en) * 1910-05-19 1910-12-13 Kasimir Glawatzky Life-saving fire-escape.
GB724186A (en) * 1951-07-06 1955-02-16 Olympic Gymnasium Company Ltd Improvements relating to gymnastic apparatus of the spring board type
US3004623A (en) * 1958-06-09 1961-10-17 George P Nissen Bounding bed
US3047294A (en) * 1961-12-08 1962-07-31 Robert H Maxwell Water-borne trampoline
DE1137660B (de) * 1956-11-19 1962-10-04 Karl Heinz Verpoorten Zusammenklappbares Sprungauffanggeraet
GB937087A (en) * 1961-04-28 1963-09-18 Nissen Corp Improvements in or relating to protective pads
US3116809A (en) * 1961-06-01 1964-01-07 Nissen Corp Supporting stand for rebound tumbling apparatus
DE1166065B (de) * 1961-01-20 1964-03-19 Heinz Dumeier Sprungauffanggeraet
US3233895A (en) * 1961-10-13 1966-02-08 Albert C Grelle Trampolines

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US527594A (en) * 1894-10-16 Safety-net
US978447A (en) * 1910-05-19 1910-12-13 Kasimir Glawatzky Life-saving fire-escape.
GB724186A (en) * 1951-07-06 1955-02-16 Olympic Gymnasium Company Ltd Improvements relating to gymnastic apparatus of the spring board type
DE1137660B (de) * 1956-11-19 1962-10-04 Karl Heinz Verpoorten Zusammenklappbares Sprungauffanggeraet
US3004623A (en) * 1958-06-09 1961-10-17 George P Nissen Bounding bed
DE1166065B (de) * 1961-01-20 1964-03-19 Heinz Dumeier Sprungauffanggeraet
GB937087A (en) * 1961-04-28 1963-09-18 Nissen Corp Improvements in or relating to protective pads
US3116809A (en) * 1961-06-01 1964-01-07 Nissen Corp Supporting stand for rebound tumbling apparatus
US3233895A (en) * 1961-10-13 1966-02-08 Albert C Grelle Trampolines
US3047294A (en) * 1961-12-08 1962-07-31 Robert H Maxwell Water-borne trampoline

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3635471A (en) * 1969-02-17 1972-01-18 Charles D Caron Controlled trampoline structure
US3767192A (en) * 1970-09-04 1973-10-23 Idema Ingf Trampoline
US4569515A (en) * 1979-05-16 1986-02-11 Gordon Donald W Exercise structure and ball game
FR2811901A1 (fr) * 2000-07-20 2002-01-25 Gymnova Ensemble de systemes d'ameliorations pour trampoline a usage sportif
US6648799B2 (en) * 2001-04-26 2003-11-18 David Hall Foldable trampoline
US20050130804A1 (en) * 2001-04-26 2005-06-16 David Hall Transportable trampoline system
US7094181B2 (en) 2001-04-26 2006-08-22 David Hall Transportable trampoline system
US20090090060A1 (en) * 2007-10-01 2009-04-09 Kennett Gmbh Doorvalbeveiliging
US10434365B2 (en) * 2012-08-27 2019-10-08 Secure linx Corporation Device and method for strengthening and rehabilitating the ankle joint
US20140057758A1 (en) * 2012-08-27 2014-02-27 Anthony Mack Device for strengthening, improving range of motion, improving flexibility in ankle joints and rehabilitating injured ankle joints
US20170043211A1 (en) * 2012-08-27 2017-02-16 Prism Alliance Group Inc. Device and method for strengthening and rehabilitating the ankle joint
US20170050064A1 (en) * 2014-05-06 2017-02-23 Masato Ikegami Trampoline assembly having adjustable resilient members
US10245457B2 (en) * 2014-05-06 2019-04-02 Masato Ikegami Trampoline assembly having adjustable resilient members
US10617901B2 (en) 2014-12-16 2020-04-14 Angehrn Ag Umformtechnik Frame structure for a mini trampoline
GB2561791A (en) * 2016-01-27 2018-10-24 Action Sports Equipment Pty Ltd Trampoline equipment and methods
WO2017127899A1 (en) * 2016-01-27 2017-08-03 Action Sports Equipment Pty Ltd Trampoline equipment and methods
US10806958B2 (en) 2016-01-27 2020-10-20 Action Sports Equipment Pty Ltd. Trampoline equipment and methods
GB2561791B (en) * 2016-01-27 2021-04-14 Action Sports Equipment Pty Ltd Trampoline equipment and methods
WO2017191119A1 (de) * 2016-05-02 2017-11-09 Angehrn Ag Umformtechnik Befestigungsvorrichtung für trampolin
CN109416065A (zh) * 2016-05-02 2019-03-01 安格恩Ag金属成型技术公司 用于蹦床的固定装置
US10898748B2 (en) 2016-05-02 2021-01-26 Angehrn Ag Umformtechnik Fastening device for a trampoline
USD817157S1 (en) 2016-08-15 2018-05-08 Angehrn Ag Umformtechnik Cable hook
USD851190S1 (en) 2016-12-09 2019-06-11 Action Sports Equipment Pty Ltd. Trampoline tensioner

Also Published As

Publication number Publication date
FR1450459A (fr) 1966-08-26
BE660504A (ko) 1965-07-01
NL6502642A (ko) 1965-10-11
GB1056195A (en) 1967-01-25
CH427607A (de) 1966-12-31

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