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WO2005115557A1 - Trampoline - Google Patents

Trampoline Download PDF

Info

Publication number
WO2005115557A1
WO2005115557A1 PCT/NZ2005/000109 NZ2005000109W WO2005115557A1 WO 2005115557 A1 WO2005115557 A1 WO 2005115557A1 NZ 2005000109 W NZ2005000109 W NZ 2005000109W WO 2005115557 A1 WO2005115557 A1 WO 2005115557A1
Authority
WO
WIPO (PCT)
Prior art keywords
rods
mat
trampoline
rod
edge
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.)
Ceased
Application number
PCT/NZ2005/000109
Other languages
English (en)
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
Priority claimed from PCT/NZ2004/000111 external-priority patent/WO2004105885A2/fr
Application filed by Board and Batten International Inc filed Critical Board and Batten International Inc
Priority to AU2005247279A priority Critical patent/AU2005247279A1/en
Priority to CA2591007A priority patent/CA2591007C/fr
Priority to DK05747526.1T priority patent/DK1814635T3/da
Priority to EP05747526A priority patent/EP1814635B1/fr
Priority to AT05747526T priority patent/ATE517665T1/de
Publication of WO2005115557A1 publication Critical patent/WO2005115557A1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • 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 rods are less than about 0.45 metres in length
  • the rods are between about 0.1 and 0.45 metres in length.
  • the rods may be between about 0.1 and 0.3 metres in length.
  • the rods have a stiffness against bending within the range of about 25 to about 3000
  • the rod stiffness against bending is in the range 500 to 1500 N/m, more preferably about 600 to about 900 N/m and most preferably about 700 N/m.
  • 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, up to about 450 mm.
  • the rod deflection is in the range 50 to 200 mm.
  • the rods which support the mat are shorter than previously contemplated but surprisingly still enable construction of a trampoline which functions well. That is, the rods may still apply load radially or laterally outwards to tension the mat appropriately for normal functioning of the trampoline, and give 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
  • 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 prefeixed fonn 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 f ⁇ breglass 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 fi-ame 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 fi-ame of the trampoline of any other fonn, 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 3 a 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 fonn each have a ball-shaped upper end 12 which coimects 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, winch 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 fonns the fitting could be alternatively shaped.
  • the rods are less than about 0.45 metres in length. Typically the rods are between about 0.1 and 0.30-0.45 metres in length, and are pultruded glass reinforced plastic rods.
  • a trampoline with rods which are shorter than previously contemplated still provide a trampoline having a good 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.
  • Such shorter rods can still be deflected sufficiently so as to apply load radially outwards to tension the mat for good jumping performance of the trampoline, while at the same time giving 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.
  • Figure 5 plots these two measures.
  • the rod deflection x indicated as in Figure 4. This deflection may be up to about 450 mm, and will typically be between about 50 to 200 mm.
  • the rods preferably have a stiffness against cantilever bending in the range about 25 to about 3000 N/m, and typically 500 to 1500 N/m.
  • equation 5 is plotted in Figure 7 for the range of rod stiffnesses expected, being 500 N/m to 1500 N/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 performance for a trampoline edge in accordance with the invention. With the specified initial deflection x these combinations will at the same time also give optimum performance to the trampoline mat as well.
  • the figure shows the rod combinations required to achieve the two key functions of mat tension and edge stiffness. These two functions can be achieved with different materials in the same way as shown in the example, but using the appropriate Young's Modulous, E, and coefficient, C ⁇ .

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Laminated Bodies (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
  • Massaging Devices (AREA)
  • Liquid Crystal (AREA)
  • Silicon Polymers (AREA)
  • Woven Fabrics (AREA)

Abstract

Trampoline comprenant un tapis souple (1), plusieurs tiges souples et élastiques (2) tenues dans un cadre (3) et accouplée au tapis (1) sur leur périphérie, les tiges (2) ayant une longueur inférieure à environ 0,45 mètres.
PCT/NZ2005/000109 2004-05-31 2005-05-31 Trampoline Ceased WO2005115557A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
AU2005247279A AU2005247279A1 (en) 2004-05-31 2005-05-31 A trampoline
CA2591007A CA2591007C (fr) 2004-05-31 2005-05-31 Trampoline
DK05747526.1T DK1814635T3 (da) 2004-05-31 2005-05-31 Trampolin
EP05747526A EP1814635B1 (fr) 2004-05-31 2005-05-31 Trampoline
AT05747526T ATE517665T1 (de) 2004-05-31 2005-05-31 Trampoline

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
PCT/NZ2004/000111 WO2004105885A2 (fr) 2003-05-30 2004-05-31 Trampoline
NZPCT/NZ2004/000111 2004-05-31
NZ537111 2004-12-09
NZ53711104 2004-12-09

Publications (1)

Publication Number Publication Date
WO2005115557A1 true WO2005115557A1 (fr) 2005-12-08

Family

ID=44352411

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NZ2005/000109 Ceased WO2005115557A1 (fr) 2004-05-31 2005-05-31 Trampoline

Country Status (7)

Country Link
EP (1) EP1814635B1 (fr)
AT (1) ATE517665T1 (fr)
AU (1) AU2005247279A1 (fr)
CA (1) CA2591007C (fr)
DK (1) DK1814635T3 (fr)
ES (1) ES2370474T3 (fr)
WO (1) WO2005115557A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006062420A1 (fr) * 2004-12-09 2006-06-15 Board & Batten International Inc Trampoline
CN110292740A (zh) * 2019-07-16 2019-10-01 东莞市建嘉实业有限公司 一种蹦床的柔性杆

Citations (6)

* 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
WO2003043704A1 (fr) * 2001-11-20 2003-05-30 Board & Batten International Inc. Fixation de bord destinee a des trampolines a bords souples
WO2004062739A1 (fr) * 2003-01-15 2004-07-29 Board & Batten International Inc. Structure de cadre pour trampoline
WO2004105885A2 (fr) * 2003-05-30 2004-12-09 Board & Batten International Inc. Trampoline
WO2005035071A1 (fr) * 2003-10-15 2005-04-21 Board & Batten International Inc. Tapis de trampoline ameliore conçu pour des trampolines a bords souples
WO2005035070A1 (fr) * 2003-10-15 2005-04-21 Board & Batten International Inc. Construction de tiges ameliorees destinees a des trampolines a bords souples

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100355101B1 (ko) * 2000-12-26 2002-10-11 윤희선 안전트램프린

Patent Citations (6)

* 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
WO2003043704A1 (fr) * 2001-11-20 2003-05-30 Board & Batten International Inc. Fixation de bord destinee a des trampolines a bords souples
WO2004062739A1 (fr) * 2003-01-15 2004-07-29 Board & Batten International Inc. Structure de cadre pour trampoline
WO2004105885A2 (fr) * 2003-05-30 2004-12-09 Board & Batten International Inc. Trampoline
WO2005035071A1 (fr) * 2003-10-15 2005-04-21 Board & Batten International Inc. Tapis de trampoline ameliore conçu pour des trampolines a bords souples
WO2005035070A1 (fr) * 2003-10-15 2005-04-21 Board & Batten International Inc. Construction de tiges ameliorees destinees a des trampolines a bords souples

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006062420A1 (fr) * 2004-12-09 2006-06-15 Board & Batten International Inc Trampoline
AU2005312433B2 (en) * 2004-12-09 2010-12-16 Board & Batten International Inc A trampoline
CN110292740A (zh) * 2019-07-16 2019-10-01 东莞市建嘉实业有限公司 一种蹦床的柔性杆

Also Published As

Publication number Publication date
CA2591007A1 (fr) 2005-12-08
AU2005247279A1 (en) 2005-12-08
ES2370474T3 (es) 2011-12-16
EP1814635B1 (fr) 2011-07-27
ATE517665T1 (de) 2011-08-15
EP1814635A1 (fr) 2007-08-08
CA2591007C (fr) 2012-04-10
EP1814635A4 (fr) 2010-10-27
DK1814635T3 (da) 2011-11-14

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