EP1633446A2 - Trampoline - Google Patents

Trampoline

Info

Publication number
EP1633446A2
EP1633446A2 EP04735534A EP04735534A EP1633446A2 EP 1633446 A2 EP1633446 A2 EP 1633446A2 EP 04735534 A EP04735534 A EP 04735534A EP 04735534 A EP04735534 A EP 04735534A EP 1633446 A2 EP1633446 A2 EP 1633446A2
Authority
EP
European Patent Office
Prior art keywords
rods
mat
trampoline
rod
upper ends
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.)
Granted
Application number
EP04735534A
Other languages
German (de)
English (en)
Other versions
EP1633446B1 (fr
EP1633446A4 (fr
Inventor
Keith Vivian Alexander
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.)
Board and Batten International Inc
Original Assignee
Board and Batten International Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Board and Batten International Inc filed Critical Board and Batten International Inc
Publication of EP1633446A2 publication Critical patent/EP1633446A2/fr
Publication of EP1633446A4 publication Critical patent/EP1633446A4/fr
Application granted granted Critical
Publication of EP1633446B1 publication Critical patent/EP1633446B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • A63B71/00—Games or sports accessories not covered in groups A63B1/00 - A63B69/00
    • A63B71/0054—Features for injury prevention on an apparatus, e.g. shock absorbers
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B71/00—Games or sports accessories not covered in groups A63B1/00 - A63B69/00
    • A63B71/0054—Features for injury prevention on an apparatus, e.g. shock absorbers
    • A63B2071/0063—Shock absorbers
    • 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
    • A63B21/026—Bars; Tubes; Leaf springs
    • 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
    • A63B2209/02—Characteristics of used materials with reinforcing fibres, e.g. carbon, polyamide fibres

Definitions

  • the invention relates to improvements to a trampoline for sporting and/or recreational use which is soft-edged relative to conventional trampolines which support the mat of the trampoline via a solid peripheral frame and exposed springs between the frame and the mat.
  • US patent 6,319,174 discloses a form of soft-edged trampoline in which the mat of the trampoline is supported by a plurality of resiliently flexible rods received in a frame of the trampoline at the lower ends of the rods and coupled to the periphery of the bouncing mat of the trampoline at their upper ends, and which avoids the need for a solid frame about the exterior of the bouncing mat and exposed springs between the frame and periphery of the mat.
  • the invention provides an improved or at least alternative form of such a soft-edged trampoline.
  • the invention comprises a trampoline including a flexible mat, a plurality of resiliently flexible rods the lower ends of which are retained in a frame of the trampoline and the upper ends of which are coupled to the mat about a periphery of the mat to support the mat, in which the rod stiffness against bending is within the range of about 400 to about 1200 N/m.
  • the rod stiffness against bending in the range 600-900 N/m, and most preferably is about 700 N/m.
  • the invention comprises a trampoline including a flexible mat, a plurality of resiliently flexible rods the lower ends of which are retained in a frame of the trampoline and the upper ends of which are coupled to the mat about a periphery of the mat to support the mat, in which the rods are deflected at their upper ends, from a natural state of rest when the rods are in position in the frame at their lower ends but before connection with the mat edge at their upper ends, to connection with the mat, by between about 100 and about 300mm.
  • the rod deflection is in the range 150 to 250 mm and most preferably about 220mm.
  • the rods which support the mat are deflected so as to apply an optimum load radially or laterally outwards to tension the mat appropriately for normal functioning of the trampoline, while at the same time the rods are of a length and diameter which gives the mat edge a vertical stiffness that is sufficiently resilient, impact-absorbing and safe for a jumper who might land on the edge out of control.
  • Trampolines of the invention may be circular, square, rectangular, or of other shapes such as octagonally shaped in plan view for example.
  • Figure 1 is a perspective view of a preferred form trampoline
  • Figure 2 is a side view of the trampoline of Figure 1
  • Figure 3 is similar to Figure 1 but of one side of the trampoline only and showing a portion of the edge of the mat of the trampoline cut away, and
  • Figure 3 a is an enlarged view of the cut away edge portion of the trampoline
  • Figure 4 shows the rod deflection measurement at the trampoline edge
  • Figure 5 shows the range of rod stiffnesses and rod deflections that achieve the edge and mat properties required in accordance with the invention
  • Figure 6 illustrates the cantilever rod notation for the equations given subsequently
  • Figure 7 shows rod length vs diameter for GRP rods to achieve the shown stiffnesses.
  • a preferred form trampoline comprises a flexible mat 1 on which users may bounce, a plurality of resiliently flexible rods 2, and a base frame 3.
  • the preferred form trampoline shown is circular in shape but the trampoline could be of any other desired shape such as oval, square, rectangular or similar.
  • the base frame of the preferred form trampoline comprises a circular beam 4 typically formed of steel or aluminium for example, which may be supported from the ground by legs 5.
  • the rods 2 are typically fibreglass rods and may be pultruded glass reinforced plastic rods, but may alternatively be formed of spring steel for example.
  • the lower ends of the rods are retained by the base frame 3 and the upper ends of the rods connect to fittings 6 as will be further described, which are coupled to the mat 1 about the periphery of the mat.
  • the lower ends of the rods 2 enter into tubular holders 7 fixed to the circular beam as shown, but the lower ends of the rods may be coupled to the circular beam, or a base frame of the trampoline of any other form, in any suitable way.
  • the mat which is typically heavy canvas or a woven synthetic material, is doubled back upon itself and fixed by stitching for example about the periphery of the mat to form a continuous pocket 8 extending about the periphery of the mat
  • a number of the fittings 6 are positioned within this pocket in the peripheral edge of the mat as shown in Figures 3 and 3a in particular.
  • the fittings may be loosely captured within the pocket or alternatively may be stitched to the mat within the edge pocket, or mechanically fastened to the mat via rivets for example.
  • the rods in the preferred form each have a ball-shaped upper end 12 which connects to a socket cavity in the underside of one of the fittings 6.
  • the fittings 6 will be formed from a plastics material, by injection moulding for example.
  • the fittings may optionally include a slight dome on the body of the fitting over the socket cavity, on the underside of the fitting.
  • the fittings have an outer edge which in use is closest to the outer peripheral edge of the mat, which edge is wider in the planar than in the inner edge of fittings, so that the fittings have an approximate truncated triangular shape and plan view, with concave sides, but this is non-limiting and in other forms the fitting could be alternatively shaped.
  • 170217-1 about 400 to about 1200 N/m, preferably in the range 600-900 N/m, and most preferably about 700 N/m.
  • the rods will be between about 0.5 and 1.5 metres in length, and more typically between about 0.45 and 1 metre in length.
  • pultruded glass reinforced plastic rods are about 620 mm in length.
  • the trampoline will then have optimum the balance of properties of, first, sufficient vertical stiffness at the mat edge so that that the edge will not "collapse" when a jumper lands on the edge, and second tension of the mat laterally to provide good jumping performance when a jumper is jumping centrally on the mat. That is, within these parameters, the rods are deflected so as to apply optimum load radially outwards to tension the mat for optimum jumping performance of the trampoline. At the same time, the rods are of a length and diameter which gives the mat edge a vertical stiffiiess that is sufficiently resilient, impact-absorbing and safe for a jumper who might land on the edge out of control. Figure 5 plots these two measures, defining the ranges of the invention.
  • stiffiiess k can be derived from equation 1 as:
  • equation 5 is plotted in Figure 7 for the range of rod stiffnesses expected, being 400N/m to 1200N/m, but nominally 700N/m. This is for glass reinforced pultruded rods. Other materials need another plot to define the length to diameter.
  • Figure 7 shows the combinations of rod length and rod diameter that will give

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Laminated Bodies (AREA)
  • Woven Fabrics (AREA)

Abstract

L'invention concerne un trampoline qui comprend une toile flexible et une pluralité de barres à flexion élastique dont les extrémités inférieures sont fixées dans un châssis associé, et dont les extrémités supérieures sont assemblées à la toile, le long de la périphérie de cette dernière. La rigidité des barres à la flexion se situe dans un intervalle de 400 à 1200 N/m approximativement, et les barres sont fléchies au niveau de leurs extrémités supérieures, de manière à passer d'une position naturelle de repos dans laquelle l'extrémité inférieure des barres sont placées dans le châssis, mais leurs extrémités supérieures n'entrent pas en contact avec la toile, à une position dans laquelle les extrémités supérieures entre en contact avec la toile, sur une distance comprise entre 100 et 300 mm environ.
EP04735534.2A 2003-05-30 2004-05-31 Trampoline Expired - Lifetime EP1633446B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NZ52621103 2003-05-30
PCT/NZ2004/000111 WO2004105885A2 (fr) 2003-05-30 2004-05-31 Trampoline

Publications (3)

Publication Number Publication Date
EP1633446A2 true EP1633446A2 (fr) 2006-03-15
EP1633446A4 EP1633446A4 (fr) 2008-04-16
EP1633446B1 EP1633446B1 (fr) 2014-03-12

Family

ID=33488017

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04735534.2A Expired - Lifetime EP1633446B1 (fr) 2003-05-30 2004-05-31 Trampoline

Country Status (4)

Country Link
EP (1) EP1633446B1 (fr)
AU (1) AU2004243127A1 (fr)
CA (1) CA2527745C (fr)
WO (1) WO2004105885A2 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK1814635T3 (da) * 2004-05-31 2011-11-14 Board & Batten Int Inc Trampolin
AU2005312433B2 (en) * 2004-12-09 2010-12-16 Board & Batten International Inc A trampoline
KR102098411B1 (ko) 2011-11-15 2020-04-07 티코나 엘엘씨 콤팩트 카메라 모듈
WO2013074475A1 (fr) 2011-11-15 2013-05-23 Ticona Llc Composition de polymère cristal liquide pour des composants électroniques à haute tension
US9353263B2 (en) 2011-11-15 2016-05-31 Ticona Llc Fine pitch electrical connector and a thermoplastic composition for use therein
US11027164B2 (en) * 2018-12-29 2021-06-08 Yongqi Wang Easy-to-assemble trampoline

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6319174B1 (en) * 1999-11-02 2001-11-20 Keith Vivian Alexander Soft-edged recreational trampoline
NZ513331A (en) * 2001-11-20 2005-01-28 Board & Batten Int Inc Edge fittings for soft-edged trampolines

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
No further relevant documents disclosed *
See also references of WO2004105885A2 *

Also Published As

Publication number Publication date
EP1633446B1 (fr) 2014-03-12
WO2004105885A3 (fr) 2005-01-06
CA2527745A1 (fr) 2004-12-09
CA2527745C (fr) 2012-03-13
EP1633446A4 (fr) 2008-04-16
AU2004243127A1 (en) 2004-12-09
WO2004105885A2 (fr) 2004-12-09

Similar Documents

Publication Publication Date Title
AU2005312433B2 (en) A trampoline
US9656110B2 (en) Edge fittings for soft-edged trampolines
US7708667B2 (en) Trampoline and enclosure system
US7678024B2 (en) Trampoline
US20050148433A1 (en) Water trampoline
EP2359912A2 (fr) Trampoline doté d'un ensemble formant enceinte pliable
US20120149534A1 (en) Fighting trainer
CA2527745C (fr) Trampoline
CA2591007C (fr) Trampoline
AU2011250686B2 (en) A Trampoline
AU2011204903B2 (en) A Trampoline
WO2024094918A1 (fr) Trampoline réglable

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20051222

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): DE FR GB IT

DAX Request for extension of the european patent (deleted)
RBV Designated contracting states (corrected)

Designated state(s): DE FR GB IT

A4 Supplementary search report drawn up and despatched

Effective date: 20080314

17Q First examination report despatched

Effective date: 20091009

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20131025

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB IT

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602004044580

Country of ref document: DE

Effective date: 20140424

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602004044580

Country of ref document: DE

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20141215

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602004044580

Country of ref document: DE

Effective date: 20141215

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 13

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 14

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 15

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230512

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20230525

Year of fee payment: 20

Ref country code: FR

Payment date: 20230530

Year of fee payment: 20

Ref country code: DE

Payment date: 20230526

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20230516

Year of fee payment: 20

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 602004044580

Country of ref document: DE

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

Expiry date: 20240530

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20240530