US3767192A - Trampoline - Google Patents

Trampoline Download PDF

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Publication number
US3767192A
US3767192A US00120537A US3767192DA US3767192A US 3767192 A US3767192 A US 3767192A US 00120537 A US00120537 A US 00120537A US 3767192D A US3767192D A US 3767192DA US 3767192 A US3767192 A US 3767192A
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US
United States
Prior art keywords
frame
sheet
rubber element
trampoline
end portion
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
US00120537A
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English (en)
Inventor
Nils E Eriksson
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.)
IDEMA INGF
INGENJORSFIRMAN IDEMA SW
Original Assignee
IDEMA INGF
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 IDEMA INGF filed Critical IDEMA INGF
Application granted granted Critical
Publication of US3767192A publication Critical patent/US3767192A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • A63B2208/00—Characteristics or parameters related to the user or player
    • A63B2208/12—Characteristics or parameters related to the user or player specially adapted for children

Definitions

  • ABSTRACT A trampoline having a mat spaced from the floor com- [56] References Cited prises a circular frame, the mat being resiliently at- UNITED STATES PATENTS tached to said frame centrally thereof.
  • This frame is built up from sections each forming a rigid unit tog fi gz g gether with a socket for connecting an adjacent sec- 1,521:422 12 1924 Boydm: 52/654 and a leg suppmting the frame 1,960,328 5/1934 Breines..
  • 52/643 X Straight struts interconnecting the legs at the lower 2,083,051 6/1937 Chapas 52/648 X ends thereof to form a polygonal lower frame.
  • This invention relates to play and gymnastics appliances and particularly to a trampoline of the type comprising a mat attached resiliently to a horizontal frame spaced from the floor, which is used by acrobates, gymnasts and children as a spring board in tumbling and playing.
  • a sheet of canvas, coated or rubberized fabric, plastic cloth or the like which is resiliently suspended in a rectangular frame. Due to the fact that the frame is rectangular resilient members connecting the sheet with the frame are non-uniformly loaded to a substantial degree the load being dependent on where the user of the trampoline hits the sheet and also on the resilience of the frame.
  • the elastic force exerted by the resilient members will be much more uniformly distributed if a circular frame is used due to the fact that all the resilient members will be substantially equally loaded and also due to the fact that the resilience of the frame will be negligable since it is counteracted by the forces exerted by the opposed resilient members. Furthermore, it has been found that a greater useful trampoline surface will be obtained at the same consumption of material for the sheet when this sheet is suspended in a circular frame than if it is suspended in a rectangular frame. In consideration of weight this is extremely advantageous if the frame is to be dismantled and moved from one place to another as is usual.
  • the invention provides a trampoline comprising a sectional upper circular frame, a leg on each frame section forming a rigid unit therewith, a socket on each frame section for connection with an end portion of an adjacent frame section, a sheet, resilient elements connectinga marginal portion of said sheet with said upper frame for mounting said sheet in said frame, and straight struts interconnecting said legs at the lower ends thereof and forming a polygonal lower frame taking up compression strains during the use of the trampoline.
  • FIG. 1 is a side view of the stand of the trampoline according to the invention.
  • FIG. 2 is a plan view of the trampoline
  • FIG. 3 is an enlarged fragmentary plan view of part of the stand at the region A in FIG. 1;
  • FIG. 4 is an enlarged fragmentary sectional view of one of the legs and the base plate thereof taken on line F-F in FIG. 3;
  • FIG. 5 is an enlarged fragmentary vertical sectional view of a frame section at a joint taken on line 8-8 in FIG. 3 the rigid connection between the several elements being clearly shown;
  • FIG. 6 is an enlarged vertical sectional fragmentary I view of a lock clamp and connecting parts of the mar- 'ginal portion of the sheet and of a rubber element;
  • FIG. 7 is a plan view of the lock clamp and adjacent parts of the marginal portion of the sheet and the rubber element shown in FIG. 6;
  • FIG. 8 is a cross-sectional view of the heavier end portion of the lock clamp, provided with recesses for the rubber element, taken on line D-D in FIG. 7.
  • the trampoline according to the invention comprises a stand including a circular supporting frame 1 having legs 2 provided with base plates 3 and interconnected by means of straight struts 4 forming a hexagonal lower frame of the stand.
  • the mat comprises a sheet 5 of canvas, coated or rubberized fabric, plastic cloth or the like, which is suspended centrally in frame l by means of resilient members each consisting of an elongated rubber element such as shown at 6a, 6b and 6c, such rubber elements being mounted between the sheet and the supporting frame by means of lock clamps 7.
  • FIGS. 6, 7 and 8 show that each clamp has a longitudinal sectional form substantially as the letter C with two opposite hook like end portions, the clamp tapering from one end to the other.
  • the thin end portion engages openings in the marginal portion of the sheet, such openings being provided with strengthening eyelets, the heavy end portions being embraced by one end of a rubber element 6.
  • said part of the rubber element is preferably thicker in cross section as shown than the rest of such element.
  • clamp 7 is provided with horizontal side recesses to receive therein the end of the rubber element as will be seen in FIG. .8. i
  • the edge portion of the sheet received by one end portion of the clamp extends so far into the clamp that it is close to the rubber element embracing the other end portion of the clamp, in order to prevent the marginal portion of the sheet and the rubber element to disengage the clamp unintentionally.
  • Frame 1 is made up of sections such as la and 1b in FIG. 3 which are detachably interconnected by means of a socket l0 fixedly connected with one of the adjacent ends of two sections.
  • a leg 2 is rigidly connected to each section.
  • Socket 10 may comprise a plastic material socket having pressure fit on the associated section.
  • the interconnection of legs 2 by means of struts 4 is important since the supporting frame and the legs thereby form a sturdy integral unit.
  • the struts may be detachably connected with the base plates by means of screw connections III as shown in FIGS. 3 and 4.
  • the tensile force in each rubber element is calculated to be about 32 pounds and the elongation about 70 percent when the person hits the sheet.
  • the total deflection of the sheet in the center thereof will be less than 2 inches in the circumstances described.
  • the strain in the connection between the supporting frame and the legs being substantial the legs tend to fold inwardly. However, this is effectively prevented by the rigid connection between each frame section and the associated leg and by the fact that the lower ends of the legs are each inserted in a base plate 3 and that such base plates are mutually braced by means of struts 4 forming the polygonal lower frame taking up compressive strains.
  • a trampoline comprising a sectional upper circular frame, a leg on each frame section forming a rigid unit therewith, a socket on each frame section for connection with an end portion of an adjacent frame section,

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Basic Packing Technique (AREA)
  • Tents Or Canopies (AREA)
  • Invalid Beds And Related Equipment (AREA)
  • Manipulator (AREA)
US00120537A 1970-09-04 1971-03-03 Trampoline Expired - Lifetime US3767192A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE03050/70*[A SE336546B (fr) 1970-09-04 1970-09-04

Publications (1)

Publication Number Publication Date
US3767192A true US3767192A (en) 1973-10-23

Family

ID=20261298

Family Applications (1)

Application Number Title Priority Date Filing Date
US00120537A Expired - Lifetime US3767192A (en) 1970-09-04 1971-03-03 Trampoline

Country Status (10)

Country Link
US (1) US3767192A (fr)
BE (1) BE763863A (fr)
CA (1) CA923516A (fr)
CH (1) CH532399A (fr)
ES (1) ES194491Y (fr)
FR (1) FR2084249A5 (fr)
GB (1) GB1302488A (fr)
NL (1) NL7102857A (fr)
NO (1) NO124414B (fr)
SE (1) SE336546B (fr)

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3948515A (en) * 1974-04-03 1976-04-06 Temple Baptist Church Round trampoline
USRE30344E (en) * 1978-04-04 1980-07-22 Temple Baptist Church Round trampoline
US4693466A (en) * 1984-07-10 1987-09-15 Donsco Inc. Oscillating device having improved support legs and demountable base
US5472390A (en) * 1994-06-27 1995-12-05 Faye; Karen A. Step exerciser having rebounding tread
US5795267A (en) * 1995-07-21 1998-08-18 Playsmart, Inc. Pre-tensioned floor system
US5967943A (en) * 1997-11-26 1999-10-19 Rich; Rolland Wayne Trampoline with elastic frame attachment system
US6223673B1 (en) 1999-07-30 2001-05-01 Rave Sports Inc. Floatable recreational park
US20050032609A1 (en) * 2003-08-04 2005-02-10 George Nissen Trampoline having a curved frame with better jumping characteristics
US7220218B1 (en) * 2005-12-19 2007-05-22 Arthur Chu Modified trampoline holder structure
US20090280961A1 (en) * 2008-05-06 2009-11-12 Funtek Usa, Inc. Mini-trampoline with support bar
USD712185S1 (en) 2014-02-28 2014-09-02 Idea Nuova, Inc. Trampoline chair
USD716574S1 (en) 2014-02-28 2014-11-04 Idea Nuova, Inc. Webbed saucer chair with central pad
USD718549S1 (en) 2014-06-11 2014-12-02 Idea Nuova, Inc. Trampoline saucer chair
USD720550S1 (en) 2014-06-11 2015-01-06 Idea Nuova, Inc. Webbed saucer chair with seat pad
USD752890S1 (en) 2015-01-08 2016-04-05 Idea Nuova, Inc. Foldable club chair
USD755549S1 (en) 2014-08-15 2016-05-10 Idea Nuova, Inc. Checkered saucer chair
USD755551S1 (en) 2014-12-02 2016-05-10 Idea Nuova, Inc. Wicker web chair
USD755552S1 (en) 2014-12-02 2016-05-10 Idea Nuova, Inc. Wicker saucer chair
USD756155S1 (en) 2014-10-15 2016-05-17 Idea Nuova, Inc. Woven chair
USD756156S1 (en) 2014-12-02 2016-05-17 Idea Nuova, Inc. Wicker saucer lounge chair
USD761605S1 (en) 2014-08-15 2016-07-19 Idea Nuova, Inc. Webbed saucer chair with seat pad
EP3028747B1 (fr) 2006-06-19 2017-07-05 Bellicon AG Trampoline
USD838329S1 (en) * 2017-04-03 2019-01-15 Joachim Heymans Trampoline
USD844730S1 (en) * 2017-02-17 2019-04-02 Bellicon Ag Hexagonal trampoline frame with bracket
USD844729S1 (en) 2017-02-17 2019-04-02 Bellicon Ag Round trampoline frame with bracket
USD853507S1 (en) * 2016-12-22 2019-07-09 Hammersport Ag Trampoline
USD884103S1 (en) * 2018-08-13 2020-05-12 Markus Hammer Trampolines

Citations (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US115837A (en) * 1871-06-13 Improvement in projectors
US408689A (en) * 1889-08-13 Whiffletree-clip
US1521422A (en) * 1923-07-23 1924-12-30 Boyd George Washington Pole or tower
US1960328A (en) * 1930-12-23 1934-05-29 Breines Simon Building structure
US2083051A (en) * 1936-09-26 1937-06-08 Steven J Chapas Airship
US2324970A (en) * 1940-11-12 1943-07-20 Louis A Woolley Exercising device
US2430714A (en) * 1945-05-21 1947-11-11 Oscar D Geer Life net
US2571753A (en) * 1945-10-06 1951-10-16 Esther K Pennington Storage crib
US2897013A (en) * 1954-08-30 1959-07-28 Preston P Delp Knockdown scaffold
US2930430A (en) * 1956-12-11 1960-03-29 Martin William E Multiple tilt chair, chaise lounge or hammock
US2977118A (en) * 1959-09-09 1961-03-28 Lucien L Farkas Gymnastic apparatus
US2991841A (en) * 1959-05-25 1961-07-11 Sampson Ben Easton Bouncing apparatus for children
US3031688A (en) * 1959-11-16 1962-05-01 Southwood Dewey Robert Convertible amusement and recreation device
GB919990A (en) * 1960-11-30 1963-02-27 Lodge Equipment Ltd An improved trampoline
DE1166065B (de) * 1961-01-20 1964-03-19 Heinz Dumeier Sprungauffanggeraet
US3137371A (en) * 1961-11-20 1964-06-16 Norman H Nye Building structure
US3356366A (en) * 1964-04-09 1967-12-05 Barthel Johann Collapsibly supported platform with adjustable tensioning means

Patent Citations (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US115837A (en) * 1871-06-13 Improvement in projectors
US408689A (en) * 1889-08-13 Whiffletree-clip
US1521422A (en) * 1923-07-23 1924-12-30 Boyd George Washington Pole or tower
US1960328A (en) * 1930-12-23 1934-05-29 Breines Simon Building structure
US2083051A (en) * 1936-09-26 1937-06-08 Steven J Chapas Airship
US2324970A (en) * 1940-11-12 1943-07-20 Louis A Woolley Exercising device
US2430714A (en) * 1945-05-21 1947-11-11 Oscar D Geer Life net
US2571753A (en) * 1945-10-06 1951-10-16 Esther K Pennington Storage crib
US2897013A (en) * 1954-08-30 1959-07-28 Preston P Delp Knockdown scaffold
US2930430A (en) * 1956-12-11 1960-03-29 Martin William E Multiple tilt chair, chaise lounge or hammock
US2991841A (en) * 1959-05-25 1961-07-11 Sampson Ben Easton Bouncing apparatus for children
US2977118A (en) * 1959-09-09 1961-03-28 Lucien L Farkas Gymnastic apparatus
US3031688A (en) * 1959-11-16 1962-05-01 Southwood Dewey Robert Convertible amusement and recreation device
GB919990A (en) * 1960-11-30 1963-02-27 Lodge Equipment Ltd An improved trampoline
DE1166065B (de) * 1961-01-20 1964-03-19 Heinz Dumeier Sprungauffanggeraet
US3137371A (en) * 1961-11-20 1964-06-16 Norman H Nye Building structure
US3356366A (en) * 1964-04-09 1967-12-05 Barthel Johann Collapsibly supported platform with adjustable tensioning means

Cited By (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3948515A (en) * 1974-04-03 1976-04-06 Temple Baptist Church Round trampoline
USRE30344E (en) * 1978-04-04 1980-07-22 Temple Baptist Church Round trampoline
US4693466A (en) * 1984-07-10 1987-09-15 Donsco Inc. Oscillating device having improved support legs and demountable base
US5472390A (en) * 1994-06-27 1995-12-05 Faye; Karen A. Step exerciser having rebounding tread
US5795267A (en) * 1995-07-21 1998-08-18 Playsmart, Inc. Pre-tensioned floor system
US5967943A (en) * 1997-11-26 1999-10-19 Rich; Rolland Wayne Trampoline with elastic frame attachment system
US6264583B1 (en) 1997-11-26 2001-07-24 Rolland Wayne Rich Trampoline with elastic frame attachment system
US6223673B1 (en) 1999-07-30 2001-05-01 Rave Sports Inc. Floatable recreational park
US20050032609A1 (en) * 2003-08-04 2005-02-10 George Nissen Trampoline having a curved frame with better jumping characteristics
US7331903B2 (en) * 2003-08-04 2008-02-19 Funtek Usa, Inc. Trampoline having a curved frame with better jumping characteristics
US7220218B1 (en) * 2005-12-19 2007-05-22 Arthur Chu Modified trampoline holder structure
EP3028747B1 (fr) 2006-06-19 2017-07-05 Bellicon AG Trampoline
US20090280961A1 (en) * 2008-05-06 2009-11-12 Funtek Usa, Inc. Mini-trampoline with support bar
US8197390B2 (en) 2008-05-06 2012-06-12 Funtek Usa, Inc. Mini-trampoline with support bar
USD712185S1 (en) 2014-02-28 2014-09-02 Idea Nuova, Inc. Trampoline chair
USD716574S1 (en) 2014-02-28 2014-11-04 Idea Nuova, Inc. Webbed saucer chair with central pad
USD737587S1 (en) 2014-02-28 2015-09-01 Idea Nuova, Inc. Webbed saucer chair with central pad
USD720550S1 (en) 2014-06-11 2015-01-06 Idea Nuova, Inc. Webbed saucer chair with seat pad
USD718549S1 (en) 2014-06-11 2014-12-02 Idea Nuova, Inc. Trampoline saucer chair
USD738640S1 (en) 2014-06-11 2015-09-15 Idea Nuova, Inc. Webbed saucer chair with seat pad
USD755549S1 (en) 2014-08-15 2016-05-10 Idea Nuova, Inc. Checkered saucer chair
USD761605S1 (en) 2014-08-15 2016-07-19 Idea Nuova, Inc. Webbed saucer chair with seat pad
USD756155S1 (en) 2014-10-15 2016-05-17 Idea Nuova, Inc. Woven chair
USD756156S1 (en) 2014-12-02 2016-05-17 Idea Nuova, Inc. Wicker saucer lounge chair
USD755552S1 (en) 2014-12-02 2016-05-10 Idea Nuova, Inc. Wicker saucer chair
USD755551S1 (en) 2014-12-02 2016-05-10 Idea Nuova, Inc. Wicker web chair
USD752890S1 (en) 2015-01-08 2016-04-05 Idea Nuova, Inc. Foldable club chair
USD853507S1 (en) * 2016-12-22 2019-07-09 Hammersport Ag Trampoline
USD844730S1 (en) * 2017-02-17 2019-04-02 Bellicon Ag Hexagonal trampoline frame with bracket
USD844729S1 (en) 2017-02-17 2019-04-02 Bellicon Ag Round trampoline frame with bracket
USD838329S1 (en) * 2017-04-03 2019-01-15 Joachim Heymans Trampoline
USD937376S1 (en) 2018-03-02 2021-11-30 Markus Hammer Trampoline
USD884103S1 (en) * 2018-08-13 2020-05-12 Markus Hammer Trampolines

Also Published As

Publication number Publication date
ES194491U (es) 1974-12-16
NL7102857A (fr) 1971-09-08
NO124414B (fr) 1972-04-17
BE763863A (fr) 1971-08-02
CA923516A (en) 1973-03-27
FR2084249A5 (fr) 1971-12-17
SE336546B (fr) 1971-07-05
CH532399A (de) 1973-01-15
ES194491Y (es) 1975-04-01
GB1302488A (fr) 1973-01-10

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