US20090054211A1 - Trampoline having cushion mechanism - Google Patents
Trampoline having cushion mechanism Download PDFInfo
- Publication number
- US20090054211A1 US20090054211A1 US11/843,671 US84367107A US2009054211A1 US 20090054211 A1 US20090054211 A1 US 20090054211A1 US 84367107 A US84367107 A US 84367107A US 2009054211 A1 US2009054211 A1 US 2009054211A1
- Authority
- US
- United States
- Prior art keywords
- trampoline
- sleeve
- frame
- downward
- legs
- 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.)
- Abandoned
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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
- 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
- A63B21/023—Wound springs
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- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Rehabilitation Tools (AREA)
Abstract
The trampoline contains a flexible jumping bed enclosed by a closed frame supported by a number of legs on the ground. A cushion element such as a spring, a rubber block, or a hydraulic or air buffering device is provided at each connection between the frame and the legs. The cushion element absorbs part of the downward force exerted on the frame and the legs so that an extended operation life of the trampoline is achieved.
Description
- The present invention generally relates to trampolines, and more particularly to a trampoline having cushion mechanism for enhancing its operation life.
- Trampoline is a common exercise device. As shown in
FIGS. 1 and 2 , a conventional trampoline contains aflexible jumping bed 20 enclosed by acircular frame 10 and thejumping bed 20 is stretched around its rim by a number ofsprings 25 to theframe 10. - A number of
curved segments circular frame 10 by joining theends segments legs 15, each formed by twovertical beams 16 and abottom beam 17 into a U-like shape. Near the two ends of eachsegment 11, twodownward sleeves 12 are provided so as to receive twovertical beams 16 from twolegs 15, respectively, by joining theirends frame 10, and therefore thejumping bed 20, is supported by thelegs 15 above the ground for an appropriate height. - Conventionally, the design of the trampoline assumes that a user of an average weight jumps up and down in the center of the
jumping bed 20. Then, based on the force exerted on thejumping bed 20, an appropriate number ofsprings 25 and the strength of eachspring 25 are determined. As shown inFIG. 3 , during the exercise, eachspring 25 undergoes a diagonal force c1 with a horizontal component b1 and a vertical component a1. The horizontal component b1 is absorbed by thespring 25 while the vertical downward component a1 is completely borne by theframe 10 and thelegs 15. The included angle between c1 and b1 represents the amount of distortion to thespring 25. - As the
springs 25 undergo constant distortion after a period of usage, the flexibility of thesprings 25 begins to decay. Since the user sometimes would land on thejumping bed 20 near the rim, this will deteriorate thesprings 25 even faster. With less absorption by thesprings 25, the greater vertical downward components a1, on one hand, further distort thesprings 25 and, on the other hand, render stronger impact to theframe 10 and thelegs 15. All these will contribute to the shortened operational life of the trampoline as thespring 25 or theframe 10 or thelegs 15 are worn or broken down. - Accordingly, a novel trampoline is provided herein which is characterized by its extended operational life span.
- In order to achieve the extended operation life, the trampoline adopts a cushion mechanism at the connections between the frame and the legs to absorb the vertically downward force of the user jumping on the trampoline. As such, the springs will suffer less distortion and therefore will not decay or wear down easily and shortly. In addition, the cushion mechanism lessens the direct impact exerted on the frame and the legs to prevent their broken down from overloading. Besides the extended operation life, the trampoline further enjoys the advantage of requiring a less number of springs and less rigid springs, which is readily translated into a smaller production cost.
- The foregoing objectives and summary provide only a brief introduction to the present invention. To fully appreciate these and other objects of the present invention as well as the invention itself, all of which will become apparent to those skilled in the art, the following detailed description of the invention and the claims should be read in conjunction with the accompanying drawings. Throughout the specification and drawings identical reference numerals refer to identical or similar parts.
- Many other advantages and features of the present invention will become manifest to those versed in the art upon making reference to the detailed description and the accompanying sheets of drawings in which a preferred structural embodiment incorporating the principles of the present invention is shown by way of illustrative example.
-
FIG. 1 is a perspective diagram showing a conventional trampoline. -
FIG. 2 is a schematic diagram showing a connection between the frame and the legs of the trampoline ofFIG. 1 . -
FIG. 3 is a schematic diagram showing how a force is exerted on a spring of the trampoline ofFIG. 1 . -
FIG. 4 is a schematic diagram showing the joining of the frame and the legs according to an embodiment of the present invention. -
FIG. 5 is a perspective diagram showing a trampoline according to the present invention. -
FIG. 6 is a schematic diagram showing a cushion mechanism adopted inFIG. 4 . -
FIG. 7 is a schematic diagram showing a cushion mechanism adopted in another embodiment of the present invention. -
FIG. 8 is a schematic diagram showing how a force is exerted on a spring of the trampoline ofFIG. 5 . - The following descriptions are exemplary embodiments only, and are not intended to limit the scope, applicability or configuration of the invention in any way. Rather, the following description provides a convenient illustration for implementing exemplary embodiments of the invention. Various changes to the described embodiments may be made in the function and arrangement of the elements described without departing from the scope of the invention as set forth in the appended claims.
- As shown in
FIG. 5 , a trampoline according to the present invention contains aflexible jumping bed 60 enclosed by a closed frame 50 (circular in this embodiment) and thejumping bed 60 is stretched around its rim by a number ofsprings 65 to theframe 50. - As shown in
FIG. 4 , a number ofsegments frame 50 by joining theends segments legs 55, each formed by twovertical beams 56 on abottom beam 57 into a U-like shape. Please note that thebottom beam 57 is curved slightly upward to enhance its strength and reliability. Near the two ends of eachsegment 51, twodownward connectors 52 are provided so as to join twovertical beams 56 from twolegs 55, respectively, by joining theirends leg 55 has an appropriate span so that its twovertical beams 56 are joined to twodownward connectors 52 from twosegments 51, respectively, with asegment 53 sandwiched therebetween, to prevent the twosegments 51 from separation. As such, theframe 50, and therefore thejumping bed 60, is supported by thelegs 55 above the ground for an appropriate height. - As shown in
FIG. 6 , thetop end 560 of avertical beam 56 is plugged into thebottom end 520 of adownward connector 52, which is a sleeve in the present embodiment. Inside thebottom end 520, acushion element 58 is provided to interface with thetop end 560 of thevertical beam 56. In the present embodiment, thecushion element 58 is a spring but it can also be a rubber block, or a hydraulic or air buffering device. As shown in HG 7 which is another embodiment of the present invention, thebottom end 520 of adownward connector 52 is plugged into thetop end 560, which is a sleeve in the present embodiment, of avertical beam 56. Inside thetop end 560, ahorizontal blocker 59 is provided to support a cushion element 58 (i.e., a spring in the present embodiment) for interfacing with thedownward connector 52's bottom end 520. - The function of the
cushion element 58 is illustrated inFIG. 8 . As shown, when a user jumps on thejumping bed 60, eachspring 65 undergoes a diagonal force c1 with a horizontal component b1 and a vertical component a3. The horizontal component b1 is again absorbed by thespring 65. On the other hand, a part of the downward component a3 is absorbed by thecushion element 58 and only a remaining component a2 is borne by theframe 50 and thelegs 55. The included angle between the resulted diagonal force c2 and b1, representing the amount of distortion to thesprings 65, therefore will be significantly smaller compared to that of a trampoline of prior art (as shown inFIG. 3 ). As thesprings 65 undergo lesser distortion, the flexibility of thesprings 65 decays in a much slower rate. Together with the weaker impact being afforded to theframe 50 and thelegs 55, a lengthened operational life of the trampoline is achieved. - It will be understood that each of the elements described above, or two or more together may also find a useful application in other types of methods differing from the type described above.
- While certain novel features of this invention have been shown and described and are pointed out in the annexed claim, it is not intended to be limited to the details above, since it will be understood that various omissions, modifications, substitutions and changes in the forms and details of the device illustrated and in its operation can be made by those skilled in the art without departing in any way from the spirit of the present invention.
Claims (5)
1. A trampoline, comprising
a closed frame;
a plurality of legs beneath and joining to said closed frame by a plurality of connections so as to support said closed frame above the ground for an appropriate height;
a flexible jumping bed enclosed by said closed frame;
a plurality of springs between the rim of said jumping bed and said closed frame to stretch said jumping bed; and
a plurality of cushion elements provided at said connections, respectively.
2. The trampoline according to claim 1 , wherein said frame is formed by cascading end-to-end a plurality of first segments and a plurality of second segments alternately; each first segment comprises two downward connectors; and each leg comprises two vertical beams joining to two downward connectors from two first segments, respectively, with a second segment sandwiched between said first segments, to form two of said connections.
3. The trampoline according to claim 2 , wherein at least one downward connector is a sleeve; a vertical beam of a leg is plugged into said sleeve; and a cushion element is housed inside said sleeve to interface with said vertical beam.
4. The trampoline according to claim 2 , wherein the top end of at least one vertical beam is a sleeve, a downward connector of a first segment is plugged into said sleeve; a blocker is provided inside said sleeve; and a cushion element is housed inside said sleeve and supported by said blocker to interface with said downward connector.
5. The trampoline according to claim 1 , wherein said cushion element is one of a spring, a rubber block, a hydraulic buffering device, and an air buffering device.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/843,671 US20090054211A1 (en) | 2007-08-23 | 2007-08-23 | Trampoline having cushion mechanism |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/843,671 US20090054211A1 (en) | 2007-08-23 | 2007-08-23 | Trampoline having cushion mechanism |
Publications (1)
Publication Number | Publication Date |
---|---|
US20090054211A1 true US20090054211A1 (en) | 2009-02-26 |
Family
ID=40382734
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/843,671 Abandoned US20090054211A1 (en) | 2007-08-23 | 2007-08-23 | Trampoline having cushion mechanism |
Country Status (1)
Country | Link |
---|---|
US (1) | US20090054211A1 (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103170090A (en) * | 2013-04-09 | 2013-06-26 | 苏州益童游乐设备有限公司 | Exercise trampoline |
US20140148319A1 (en) * | 2012-04-26 | 2014-05-29 | Eileen Richter | Therapeutic integrator apparatus |
WO2017155555A1 (en) * | 2016-03-11 | 2017-09-14 | Luke Schueler | Trampoline suspension mount and connection system |
CN109499043A (en) * | 2019-01-04 | 2019-03-22 | 刘运伟 | A kind of trampoline with buffer unit |
USD894298S1 (en) * | 2019-01-17 | 2020-08-25 | Kankakee Spikeball, Inc. | Sports game |
USD925664S1 (en) * | 2020-01-07 | 2021-07-20 | Youping Wang | Trampoline with basketball board |
USD972647S1 (en) * | 2019-09-09 | 2022-12-13 | Hongyu Wang | Spike battle ball game |
USD1019837S1 (en) * | 2023-08-22 | 2024-03-26 | Ninghaichen Double Mold Plastic Factory | LED practice net |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US952871A (en) * | 1909-04-05 | 1910-03-22 | Thomas F Browder | Life-saving machine. |
US2430714A (en) * | 1945-05-21 | 1947-11-11 | Oscar D Geer | Life net |
US3677368A (en) * | 1970-09-25 | 1972-07-18 | Victor J Green | Trampoline |
US4339123A (en) * | 1981-06-10 | 1982-07-13 | Rich Rolland W | T-Joint structure for trampolines and the like |
US4386772A (en) * | 1981-04-23 | 1983-06-07 | Horng Meei Spring Enterprise Co., Ltd. | Trampoline with horizontal and vertical elastic force |
US6733420B1 (en) * | 2001-06-12 | 2004-05-11 | Herbert E. Schroeder | Exercise apparatus |
-
2007
- 2007-08-23 US US11/843,671 patent/US20090054211A1/en not_active Abandoned
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US952871A (en) * | 1909-04-05 | 1910-03-22 | Thomas F Browder | Life-saving machine. |
US2430714A (en) * | 1945-05-21 | 1947-11-11 | Oscar D Geer | Life net |
US3677368A (en) * | 1970-09-25 | 1972-07-18 | Victor J Green | Trampoline |
US4386772A (en) * | 1981-04-23 | 1983-06-07 | Horng Meei Spring Enterprise Co., Ltd. | Trampoline with horizontal and vertical elastic force |
US4339123A (en) * | 1981-06-10 | 1982-07-13 | Rich Rolland W | T-Joint structure for trampolines and the like |
US6733420B1 (en) * | 2001-06-12 | 2004-05-11 | Herbert E. Schroeder | Exercise apparatus |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20140148319A1 (en) * | 2012-04-26 | 2014-05-29 | Eileen Richter | Therapeutic integrator apparatus |
US9314389B2 (en) * | 2012-04-26 | 2016-04-19 | Eileen Richter | Therapeutic integrator apparatus |
CN103170090A (en) * | 2013-04-09 | 2013-06-26 | 苏州益童游乐设备有限公司 | Exercise trampoline |
WO2017155555A1 (en) * | 2016-03-11 | 2017-09-14 | Luke Schueler | Trampoline suspension mount and connection system |
CN109499043A (en) * | 2019-01-04 | 2019-03-22 | 刘运伟 | A kind of trampoline with buffer unit |
USD894298S1 (en) * | 2019-01-17 | 2020-08-25 | Kankakee Spikeball, Inc. | Sports game |
USD972647S1 (en) * | 2019-09-09 | 2022-12-13 | Hongyu Wang | Spike battle ball game |
USD925664S1 (en) * | 2020-01-07 | 2021-07-20 | Youping Wang | Trampoline with basketball board |
USD1019837S1 (en) * | 2023-08-22 | 2024-03-26 | Ninghaichen Double Mold Plastic Factory | LED practice net |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |