US2826424A - Coasting device or sled - Google Patents

Coasting device or sled Download PDF

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Publication number
US2826424A
US2826424A US579215A US57921556A US2826424A US 2826424 A US2826424 A US 2826424A US 579215 A US579215 A US 579215A US 57921556 A US57921556 A US 57921556A US 2826424 A US2826424 A US 2826424A
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Prior art keywords
rim
body portion
thickness
approximately
sled
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Expired - Lifetime
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US579215A
Inventor
Arthur G Erickson
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KALAMAZOO SLED Co
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KALAMAZOO SLED Co
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Priority to US579215A priority Critical patent/US2826424A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B15/00—Other sledges; Ice boats or sailing sledges

Definitions

  • This invention relates to a coasting device or sled.
  • the main objects of this invention are:
  • Fig. 1 is an inverted view of the coaster or sled embodying my invention.
  • Fig. 2 is a vertical section on a line corresponding to line 2-2 of Fig. 1.
  • - Fig. 3 is an enlarged fragmentary section on a line corresponding to line 3--3 of Fig. 1.
  • Fig. 4 is an enlarged fragmentary inverted view.
  • Fig. 5 is a side elevational view partially broken away and a section illustrating the coasting device as engaging an obstruction such as a rock projecting through snow.
  • Fig. 6 is an enlarged fragmentary section corresponding generally to that of Fig. 3 with the sectioning indicating plastic as in Figs. 2, 3 and 5 omitted for more clearly showing structural details.
  • Fig. 7 is a plan view of the reinforcing mat of helter skelter disposed glass fibers.
  • Fig. 8 is a fragmentary sectional View of Fig. 7.
  • Fig. 9 is an enlarged fragmentary plan view conventionally illustrating the reinforcing mat.
  • the body designated generally by the numeral 1 is generally of spherically curved concavo-convex shape and is provided with an outturned downwardly facing rim 2 of U-section.
  • the depth of the body portion at the center is approximately three and three-fourth inches and the diameter about twenty-six inches.
  • the major portion 3 of the body is of approximately .070 of an inch in thickness. Thls ma or portion merges into an annular portion 4 of approximately of an inch thickness. The annular portion 4 merges into the rim which extends upwardly therefrom approximately one-half inch.
  • the device is molded of thermo-setting resin, polyester resin found to be satisfactory, and this is reinforced by glass fibers indicated at 5 in Figs. 6, 7, 8 and 9. These glass fibers are matted helter-skel ter to provide a reinforcing mat designated generally in these figures by the numeral 6.
  • This glass fiber mat varies in thickness as States Patent 0 2,826,424 Patented Mar. 11, 1958 does the body of the device, that is, the thickness of the mat or matted fibers generally corresponds in thickness to that of the finished device.
  • the mat of fibers has a rim portion 7 incorporated in the rim.
  • thermo-setting resin sprayed or otherwise applied to completely embed the fibers and the molds closed and subjected to the proper temperature for setting the particular thermo resin employed.
  • the rim is provided with a plurality of angularly spaced struts or gussets 8 formed integrally therewith.
  • the major portion of the body approximately the thickness specified it is substantially springable and at the same time is capable of sustaining loads and withstanding blows and distortion stresses to which it may be subjected in use.
  • the annular thickened portion 4 is relatively unyielding and is rendered further so by the fact that it merges into the rim.
  • This arrangement provides a structure which yieldably or springably withstands distortions such as may result from striking an obstruction such as a rock or other object indicated at 9 in Fig. 5, snow being conventionally illustrated at it]. Further, the structure springably withstands. such misuse, for example; as a person stepping or standing on the device when it is in inverted position and it is not ruptured or dented thereby as it is substantially springabie. However, it has a peripheral portion. of relative rigidity which provides the desired strength and maintains its shape when subjected to various distortion forces.
  • the body portion is desirably provided with holes it spaced to receive the attaching rivets 12 of the handholds 13. It is also provided with grommets 1d spaced to receive a propelling rope (not illustrated).
  • Coasters embodying my invention may be very economically produced and they are very strong and capable of withstanding shocks or blows and misuse such for example as l have indicated. It should be understood that the dimensions that I have given are such as l have found highly desirable in commercial use. However, I have not illustrated or described possible modifications as it is believed that the disclosure made will enable those skilled in the art to embody or adaptmy invention as may be desired.
  • a unitary coasting device comprising a circular spherically curved concave-convex body portion surrounded by a continuous downwardly facing outturned rim of U- .section and having a plurality of integral angularly spaced gussets, the rim being of approximately one-half inch in height its inner wall being inwardly inclined and merging into the spherically curved body portion, the depth of the body portion at the center thereof being approximately three .and three-fourth inches, the thickness of the body portion with the exception of an annular portion of approximately two inches in width which merges into the rim being approximately .070 of an inch in thickness, said annular thicker portion being of approximately of an inch in thickness and merging into the portion surrounded thereby, said device consisting essentially of a mat of glass fibers of substantial length generally conformed to the shape and thickness of the body portion and extending into the rim and a thermo setting resin embedding the glass fibers and having smooth inner and :outer surfaces, the portion of the body portion
  • rim being substantially rigid as compared to the thicker portion surrounded thereby.
  • a unitary coasting device comprising a circular spherically curved concave-convex body portion surrounded by a continuous downwardly facing outturned rim which merges into the spherically curved body portion, the thickness of the body portion with the exception of an annular portion of approximately two inches in width which merges into the rim being approximately .070 of an inch in thickness, said annular thicker portion being :of approximately of an inch in thickness and merging into the portion surrounded thereby, said device consisting essentially of a mat of glass fibers of substantial length generally conformed to the shape and thickness of the body portion and extending into the rim and a thermo-setting resin embedding the glass fibers and constituting the outer and inner surfaces, the portion of the body portion within said annular thickened portion being substantially springable, the rim being springable but substantially rigid as compared to the adjacent portion surrounded thereby.
  • a unitary coasting device comprising a spherically curved concave-convex body portion surrounded by a continuous downwardly facing outturned rim of U-section and having a plurality of integral angularly spaced gussets, the rim being of approximately one-half inch in height its inner wall being inwardly inclined and merging into the spherically curved body portion, the body portion with the exception of a relatively narrow annular portion which merges into the rim being of substantially uniform thickness, said annular portion being substantially thicker than the portion surrounded thereby, said device consisting essentially of a mat of glass fibers of substantial length generally conformed to the shape and thickness of the body portion and a thermo-setting resin embedding the glass fibers, the portion of the body portion within said annular thickened portion being substantially springable relative to said thicker annular surrounding portion.
  • a unitary coasting device comprising a circular spherically curved concavo-convex body portion surrounded by a continuous outturned rim of downwardly facing U-section .and having a plurality of integral angularly spaced gussets, the rim being relatively narrow vertically as compared to the depth of the spherically curved body portion, the inner wall of the rim merging into a relatively narrow annular portion of a thickness substantially exceeding that of the major portion of the body surrounded thereby which major portion is relatively springable, said device consisting essentially of matted glass fibers generally conformed to the shape and thickness of the body portion, and a thermo-setting resin embedding the glass fibers and constituting the outer surface of the device.
  • a unitary coasting device comprising a circular spherically curved concave-convex body portion surrounded by a continuous outturned rim of downwardly facing U-section and having a plurality of integral angularly spaced gussets, the rim being relatively narrow vertically ascompared to the depth of the spherically curved body portion, the inner wall of the rim merging into a relatively narrow annular portion of a thickness substantially exceeding that of the major portion of the body surrounded thereby which major portion is relatively springable, said device consisting essentially of helter skelter glass fibers, and a thermo-setting resin embedding the glass fibers and constituting the outer surface of the device.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Laminated Bodies (AREA)
  • Table Equipment (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Description

March 11, 1958 A. G. ERIQKSON 2,826,424
' COASTING DEVICE'OR SLED Filed April 19, 1956 I i 2 Sheets-Sheet 1 INKENTOR.
m 5- WWW? 2 Sheets-Shae INVlgNTOR. firm/r50 March 11, 1958 A. G. ERICKSON I COASTING DEVICE OR SLED Fi ld April 19, 1956 I.\\ Am Q5 coAsrnso DEVICE R SLED Arthur G. Erickson, Kalamazoo, Mich., assignor to Kalamazoo Sled Company, Kalamazoo, Mich.
Application April 19, 1956, Serial No. 579,215
5 Claims. (Cl. 280-12) This invention relates to a coasting device or sled.
The main objects of this invention are:
First, to provide a coasting device or sled which is of relatively light weight and at the same time maintains its shape while being substantially resilient when subjected to distorting stresses.
Second, to provide a structure having these advantages which is capable of withstanding impacts such as might result from the coaster striking a stone or stump or other object and also distortion stresses such as a person standing on it when it is in inverted position.
Third, to provide a structure having these advantages which may be very economically produced.
Objects relating to details and economies of the invention will appear from the description to follow. The invention isdefined and pointed out in claims.
A preferred embodiment of the invention is illustrated in the accompanying drawing, in which:
Fig. 1 is an inverted view of the coaster or sled embodying my invention.
Fig. 2 is a vertical section on a line corresponding to line 2-2 of Fig. 1.
- Fig. 3 is an enlarged fragmentary section on a line corresponding to line 3--3 of Fig. 1.
Fig. 4 is an enlarged fragmentary inverted view.
Fig. 5 is a side elevational view partially broken away and a section illustrating the coasting device as engaging an obstruction such as a rock projecting through snow.
Fig. 6 is an enlarged fragmentary section corresponding generally to that of Fig. 3 with the sectioning indicating plastic as in Figs. 2, 3 and 5 omitted for more clearly showing structural details.
Fig. 7 is a plan view of the reinforcing mat of helter skelter disposed glass fibers.
Fig. 8 is a fragmentary sectional View of Fig. 7.
Fig. 9 is an enlarged fragmentary plan view conventionally illustrating the reinforcing mat.
In the embodiment of my invention illustrated the body designated generally by the numeral 1 is generally of spherically curved concavo-convex shape and is provided with an outturned downwardly facing rim 2 of U-section.
In the commercial embodiment of my invention the depth of the body portion at the center is approximately three and three-fourth inches and the diameter about twenty-six inches. The major portion 3 of the body is of approximately .070 of an inch in thickness. Thls ma or portion merges into an annular portion 4 of approximately of an inch thickness. The annular portion 4 merges into the rim which extends upwardly therefrom approximately one-half inch.
The device is molded of thermo-setting resin, polyester resin found to be satisfactory, and this is reinforced by glass fibers indicated at 5 in Figs. 6, 7, 8 and 9. These glass fibers are matted helter-skel ter to provide a reinforcing mat designated generally in these figures by the numeral 6. This glass fiber mat varies in thickness as States Patent 0 2,826,424 Patented Mar. 11, 1958 does the body of the device, that is, the thickness of the mat or matted fibers generally corresponds in thickness to that of the finished device. The mat of fibers has a rim portion 7 incorporated in the rim.
In manufacture a mat of the glass fibers, such as is shown in Fig. 7, is placed in one member of a mold and thermo-setting resin sprayed or otherwise applied to completely embed the fibers and the molds closed and subjected to the proper temperature for setting the particular thermo resin employed.
The rim is provided with a plurality of angularly spaced struts or gussets 8 formed integrally therewith.
With the major portion of the body approximately the thickness specified it is substantially springable and at the same time is capable of sustaining loads and withstanding blows and distortion stresses to which it may be subjected in use.
The annular thickened portion 4 is relatively unyielding and is rendered further so by the fact that it merges into the rim. This arrangement provides a structure which yieldably or springably withstands distortions such as may result from striking an obstruction such as a rock or other object indicated at 9 in Fig. 5, snow being conventionally illustrated at it]. Further, the structure springably withstands. such misuse, for example; as a person stepping or standing on the device when it is in inverted position and it is not ruptured or dented thereby as it is substantially springabie. However, it has a peripheral portion. of relative rigidity which provides the desired strength and maintains its shape when subjected to various distortion forces.
The body portion is desirably provided with holes it spaced to receive the attaching rivets 12 of the handholds 13. It is also provided with grommets 1d spaced to receive a propelling rope (not illustrated).
Coasters embodying my invention may be very economically produced and they are very strong and capable of withstanding shocks or blows and misuse such for example as l have indicated. It should be understood that the dimensions that I have given are such as l have found highly desirable in commercial use. However, I have not illustrated or described possible modifications as it is believed that the disclosure made will enable those skilled in the art to embody or adaptmy invention as may be desired.
Having thus described the invention, what is claimed to be new and is desired to be secured by Letters Patent is:
1. A unitary coasting device comprising a circular spherically curved concave-convex body portion surrounded by a continuous downwardly facing outturned rim of U- .section and having a plurality of integral angularly spaced gussets, the rim being of approximately one-half inch in height its inner wall being inwardly inclined and merging into the spherically curved body portion, the depth of the body portion at the center thereof being approximately three .and three-fourth inches, the thickness of the body portion with the exception of an annular portion of approximately two inches in width which merges into the rim being approximately .070 of an inch in thickness, said annular thicker portion being of approximately of an inch in thickness and merging into the portion surrounded thereby, said device consisting essentially of a mat of glass fibers of substantial length generally conformed to the shape and thickness of the body portion and extending into the rim and a thermo setting resin embedding the glass fibers and having smooth inner and :outer surfaces, the portion of the body portion within said annular thickened portion being substantially springa'ble relative to said thicker annular surrounding portion which is in turn reinforced and stiffened by the rim, the
rim being substantially rigid as compared to the thicker portion surrounded thereby.
2. A unitary coasting device comprising a circular spherically curved concave-convex body portion surrounded by a continuous downwardly facing outturned rim which merges into the spherically curved body portion, the thickness of the body portion with the exception of an annular portion of approximately two inches in width which merges into the rim being approximately .070 of an inch in thickness, said annular thicker portion being :of approximately of an inch in thickness and merging into the portion surrounded thereby, said device consisting essentially of a mat of glass fibers of substantial length generally conformed to the shape and thickness of the body portion and extending into the rim and a thermo-setting resin embedding the glass fibers and constituting the outer and inner surfaces, the portion of the body portion within said annular thickened portion being substantially springable, the rim being springable but substantially rigid as compared to the adjacent portion surrounded thereby.
3. A unitary coasting device comprising a spherically curved concave-convex body portion surrounded by a continuous downwardly facing outturned rim of U-section and having a plurality of integral angularly spaced gussets, the rim being of approximately one-half inch in height its inner wall being inwardly inclined and merging into the spherically curved body portion, the body portion with the exception of a relatively narrow annular portion which merges into the rim being of substantially uniform thickness, said annular portion being substantially thicker than the portion surrounded thereby, said device consisting essentially of a mat of glass fibers of substantial length generally conformed to the shape and thickness of the body portion and a thermo-setting resin embedding the glass fibers, the portion of the body portion within said annular thickened portion being substantially springable relative to said thicker annular surrounding portion.
4. A unitary coasting device comprising a circular spherically curved concavo-convex body portion surrounded by a continuous outturned rim of downwardly facing U-section .and having a plurality of integral angularly spaced gussets, the rim being relatively narrow vertically as compared to the depth of the spherically curved body portion, the inner wall of the rim merging into a relatively narrow annular portion of a thickness substantially exceeding that of the major portion of the body surrounded thereby which major portion is relatively springable, said device consisting essentially of matted glass fibers generally conformed to the shape and thickness of the body portion, and a thermo-setting resin embedding the glass fibers and constituting the outer surface of the device.
5. A unitary coasting device comprising a circular spherically curved concave-convex body portion surrounded by a continuous outturned rim of downwardly facing U-section and having a plurality of integral angularly spaced gussets, the rim being relatively narrow vertically ascompared to the depth of the spherically curved body portion, the inner wall of the rim merging into a relatively narrow annular portion of a thickness substantially exceeding that of the major portion of the body surrounded thereby which major portion is relatively springable, said device consisting essentially of helter skelter glass fibers, and a thermo-setting resin embedding the glass fibers and constituting the outer surface of the device.
References Cited in the file of this patent UNITED STATES PATENTS 2,219,905 Prickman Oct. 29,1940 2,389,729 Howland Nov. 27, 1945 2,464,341 Ostlund Mar. 15, 1949 2,493,315 Ruka Jan. 3, 1950 2,634,020 Bartholomew Apr. 7, 1953 2,688,580 Fingerhut Sept. 7, 1954 2,695,178 Rheinfrank Nov. 23, 1954 2,735,690 Paden et a1. Feb. 21, 1956 FOREIGN PATENTS 487,708 Canada Nov. 4, 1952
US579215A 1956-04-19 1956-04-19 Coasting device or sled Expired - Lifetime US2826424A (en)

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Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3123374A (en) * 1964-03-03 Snow coaster rudder
US4613131A (en) * 1983-03-02 1986-09-23 Anderson Erma N Exercise device for physical therapy
US4735423A (en) * 1986-11-28 1988-04-05 Lynn Foss Sliding rump shield
US5951403A (en) * 1998-06-08 1999-09-14 Trzos; Irene Wanda Hemispherical rolling toy
USD481655S1 (en) 2002-03-08 2003-11-04 Wham-O, Inc. Saucer sled
US20040242390A1 (en) * 2003-05-29 2004-12-02 Willliams Julian David Walk simulation apparatus for exercise and virtual reality
USD518865S1 (en) * 2005-06-06 2006-04-11 Palziv Ein Hanatziv Agricultural Co-Operative Society Ltd. Concaving float
US20070176376A1 (en) * 2004-02-19 2007-08-02 Maier Georg N Snow glider
US20080039304A1 (en) * 2006-08-10 2008-02-14 Mattox E Michael Balance Training and Exercise Device
US20090186539A1 (en) * 2008-01-18 2009-07-23 American Disk Water Skiing Disk
US20100207338A1 (en) * 2006-02-02 2010-08-19 Peter Sulzenbacher Bobsleigh
US8142305B2 (en) * 2010-08-30 2012-03-27 Jimmy Hack Golf, Llc Sports activity swing trainer
US8202172B1 (en) 2008-10-03 2012-06-19 Lejeune Francis E Child rocking toy
US9950241B2 (en) * 2014-12-22 2018-04-24 John Pfeifer Snow ski assemblies
US11786799B2 (en) * 2014-12-22 2023-10-17 J&M Sports Enterprises Llc Snow ski assemblies

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2219905A (en) * 1939-04-17 1940-10-29 Louis E Prickman Coasting device
US2389729A (en) * 1943-11-12 1945-11-27 Levi S Howland Surfboard
US2464341A (en) * 1945-12-20 1949-03-15 Henning I Ostlund Coasting device
US2493315A (en) * 1946-08-16 1950-01-03 Ruka William Coaster pan
CA487708A (en) * 1952-11-04 Ann Dysthe Kari Coasting device
US2634020A (en) * 1948-05-19 1953-04-07 Doehler Jarvis Corp Tote box
US2688580A (en) * 1950-11-04 1954-09-07 Zenith Plastics Co Method of forming fiber glass reinforced resin sheet
US2695178A (en) * 1950-06-15 1954-11-23 Jr George B Rheinfrank Laminated ski and method of making same
US2735690A (en) * 1956-02-21 Sled with detachable runner

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA487708A (en) * 1952-11-04 Ann Dysthe Kari Coasting device
US2735690A (en) * 1956-02-21 Sled with detachable runner
US2219905A (en) * 1939-04-17 1940-10-29 Louis E Prickman Coasting device
US2389729A (en) * 1943-11-12 1945-11-27 Levi S Howland Surfboard
US2464341A (en) * 1945-12-20 1949-03-15 Henning I Ostlund Coasting device
US2493315A (en) * 1946-08-16 1950-01-03 Ruka William Coaster pan
US2634020A (en) * 1948-05-19 1953-04-07 Doehler Jarvis Corp Tote box
US2695178A (en) * 1950-06-15 1954-11-23 Jr George B Rheinfrank Laminated ski and method of making same
US2688580A (en) * 1950-11-04 1954-09-07 Zenith Plastics Co Method of forming fiber glass reinforced resin sheet

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3123374A (en) * 1964-03-03 Snow coaster rudder
US4613131A (en) * 1983-03-02 1986-09-23 Anderson Erma N Exercise device for physical therapy
US4735423A (en) * 1986-11-28 1988-04-05 Lynn Foss Sliding rump shield
US5951403A (en) * 1998-06-08 1999-09-14 Trzos; Irene Wanda Hemispherical rolling toy
USD481655S1 (en) 2002-03-08 2003-11-04 Wham-O, Inc. Saucer sled
US20040242390A1 (en) * 2003-05-29 2004-12-02 Willliams Julian David Walk simulation apparatus for exercise and virtual reality
US7470218B2 (en) * 2003-05-29 2008-12-30 Julian David Williams Walk simulation apparatus for exercise and virtual reality
US20070176376A1 (en) * 2004-02-19 2007-08-02 Maier Georg N Snow glider
USD518865S1 (en) * 2005-06-06 2006-04-11 Palziv Ein Hanatziv Agricultural Co-Operative Society Ltd. Concaving float
US20100207338A1 (en) * 2006-02-02 2010-08-19 Peter Sulzenbacher Bobsleigh
US8678985B2 (en) * 2006-08-10 2014-03-25 E. Michael Mattox Balance training and exercise device
US20080039304A1 (en) * 2006-08-10 2008-02-14 Mattox E Michael Balance Training and Exercise Device
US20090186539A1 (en) * 2008-01-18 2009-07-23 American Disk Water Skiing Disk
US8202172B1 (en) 2008-10-03 2012-06-19 Lejeune Francis E Child rocking toy
US8142305B2 (en) * 2010-08-30 2012-03-27 Jimmy Hack Golf, Llc Sports activity swing trainer
US8360896B2 (en) 2010-08-30 2013-01-29 Jimmy Hack Golf, Llc Swing trainer
US9950241B2 (en) * 2014-12-22 2018-04-24 John Pfeifer Snow ski assemblies
US20180207510A1 (en) * 2014-12-22 2018-07-26 John Pfeifer Snow Ski Assemblies
USD882009S1 (en) 2014-12-22 2020-04-21 John Pfeifer Snow ski
US11007421B2 (en) * 2014-12-22 2021-05-18 John Pfeifer Snow ski assemblies
USD994812S1 (en) 2014-12-22 2023-08-08 J&M Sports Enterprises Llc Snow ski
US11786799B2 (en) * 2014-12-22 2023-10-17 J&M Sports Enterprises Llc Snow ski assemblies

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