US3635482A - Ski and method of manufacture - Google Patents

Ski and method of manufacture Download PDF

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Publication number
US3635482A
US3635482A US56089A US3635482DA US3635482A US 3635482 A US3635482 A US 3635482A US 56089 A US56089 A US 56089A US 3635482D A US3635482D A US 3635482DA US 3635482 A US3635482 A US 3635482A
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Prior art keywords
ski
core
assembly
plastic
layer
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
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US56089A
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English (en)
Inventor
Rudolph G Holman
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Sumitomo Bank Ltd
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AMF Inc
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Publication of US3635482A publication Critical patent/US3635482A/en
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Assigned to HEAD SPORTS, INC., A CORP. OF DE. reassignment HEAD SPORTS, INC., A CORP. OF DE. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: AMF INCORPORATED
Assigned to SUMITOMO BANK, LIMITED, THE reassignment SUMITOMO BANK, LIMITED, THE ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: HEAD SPORTS, INC.
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    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C5/00—Skis or snowboards
    • A63C5/04—Structure of the surface thereof
    • A63C5/048—Structure of the surface thereof of the edges
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C5/00—Skis or snowboards
    • A63C5/04—Structure of the surface thereof
    • A63C5/052—Structure of the surface thereof of the tips or rear ends
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C5/00—Skis or snowboards
    • A63C5/12—Making thereof; Selection of particular materials
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S273/00—Amusement devices: games
    • Y10S273/08—Urethane

Definitions

  • the ski comprises a plastic foam core surrounded by one [58] i /242 245 or more fiber glass layers and a predetermined fiber glass winding.
  • This invention relates to a new and improved snow ski and a method of making said ski.
  • the growing popularity of winter sports such as skiing caused manufacturers to devote more attention to technical problems affecting ski performance.
  • Considerable effort has, consequently, been devoted to developing new ski designs which represent a marked improvement over the prior art.
  • the manufacture of skis generally requires a great number of manual operations which necessarily increase product cost.
  • the characteristics or properties of commercially available skis are often deficient in one or more respects as attempts are made to compromise between various design factors.
  • the present invention relates to a new and improved ski which is superior in performance to present high-quality skis and also lower in cost.
  • the unique ski comprising this invention readily lends itself to mass production methods which permit further economies.
  • the object of this invention is to provide a new and improved ski and a method of manufacturing said ski.
  • the ski thus produced is light in weight and is of a predetermined strength and thickness.
  • the unique ski of the present invention comprises a plastic foam core having a predetermined fiber glass covering and a separate fiber glass winding to produce the desired properties in the finished product.
  • a top assembly including a coiled spring outer edge and a bottom assembly are then bonded to the core assembly to form the finished ski.
  • the invention in its various embodiments includes a number of novel top and bottom assemblies which are mounted about the core. Since the various manufacturing operations may be readily adapted to mass production techniques, the subject skis may be produced at a lower unit cost.
  • FIG. I is a top view of the unique ski comprising the present invention.
  • FIG. 2 is a side view of the subject ski illustrating the configuration of said ski
  • FIG. 3 is a cross-sectional view taken along the line 3--3 of FIG. 1 showing the tip section of the ski;
  • FIG. 4 is a cross-sectional view taken along the line 4-4 of FIG. I illustrating the tail section of the ski;
  • FIG. 5 is a cross-sectional view taken along the line 5-5 of FIG. ll showing the construction of the ski tip portion;
  • FIG. 6 is a cross sectional view taken along the line 66 of FIG. I showing the waist portion of the ski;
  • FIG. 7 is a cross-sectional view taken along the line 7-7 of FIG. 1 illustrating the construction of the tail portion of the ski;
  • FIG. 8 is a view showing the tip protector mounted on the tip portion of the ski
  • FIG. 9 shows the coil spring upper edge employed in the preferred embodiment of the ski
  • FIG. I is a top view of a typical L-shaped running edge employed in the preferred embodiment
  • FIGS. ill-l6 illustrate the unique core structure of the subject ski and its method of manufacture with the various views being as follows:
  • FIG. II is a cross-sectional view of the core assembly
  • FIG. 12 is a broken-away perspective view of the core assembly to better illustrate its various elements:
  • FIG. 13 is a view of the molded core prior to winding
  • FIG. MI is a view of a typical binding plate
  • FIG. 15 illustrates the positioning of the various core elements within a mold for forming the polyurethane core structure'
  • FIG. 16 illustrates the winding operation wherein a fiber glass thread is wrapped about the molded core in a predetermined pattern
  • FIGS. 17-24 illustrate various other embodiments of the invention employing the wound fiber glass: core illustrated in the foregoing figures. The different embodiments are described at length in the specification.
  • FIG. 25 is an isometric view of another embodiment of a ski according to the invention.
  • FIG. 26 is a sectional view of the ski shown in FIG. 25.
  • FIG. 27 is an isometric view of a reinforced core for the ski shown in FIGS. 25 and 26.
  • FIG. 28 is an exploded view of the ski shown in FIGS. 25 and 26.
  • FIG. 29 is an enlarged view of a portion of the ski shown in FIG. 28.
  • the present invention comprises a new and improved ski 10 which includes a core 1 l of material such as polyurethane foam having one or more binding plates 12 and a plurality of fiber glass layers 13 and 14 positioned thereover and a fiber glass winding 16 wrapped thereabout in a predetermined pattern.
  • the above components comprise the core assembly 17 which remains essentially the same for the various embodiments of the invention.
  • This core assembly 17 is combined with a top and side surface assembly and a bottom surface assembly to form the completed ski shown in FIGS. I and 2.
  • the core assembly 17, which is illustrated in greater detail in FIGS. III-l6, includes a lightweight polyurethane foam core 11 having one or more binding plates 12 mounted near the upper surface intermediate the end portions of the core 11.
  • the binding plates 12 may be of a fiber material or a metal such as aluminum.
  • the binding plates 12 are designed to anchor the connecting members or screws which secure the ski bindings (not shown) to the ski 10. It is to be understood, of course, that the binding plates 12 may differ somewhat from the configuration of FIG. 14 and may comprise one or more separate elements.
  • a generally Z-shaped anchor member I2 is disposed beneath one of the rear binding plates 12.
  • This anchor member 12' is for the purpose of receiving side screws or the like for anchoring ski bindings from along the side edge of the ski, whereas the plates 12 are adapted to receive top screws or the like.
  • the Z-shape imparted to the member 12' has the additional advantage that it can be readily used with skis having different widths. This is because the width of the member 12' can be readily varied merely by pinching or stretching its Z-shape.
  • An inner layer 113 of matted glass material and an outer layer 14 of unidirectional glass material are placed about the core 11 and over the binding plates 12 during forming of the core ill.
  • a treated fiber glass winding 16 is then wrapped about the glass layers 13 and M in a helical winding pattern which may be varied as desired to impart predetermined characteristics to the ski 10.
  • the separate elements of the core assembly 17 are bonded together in a subsequent molding operation.
  • Both the front and rear portions of the core II include formed winding tabs 21 in order to mount the ski 10 during the winding operation, the protruding tabs 21 being removed at a later time.
  • the core assembly 17 is formed by first placing a full-length unidirectional strip M of glass material :in the lower half of a mold 22 and placing a full-length strip 13 of glass mat on top of the unidirectional layer 14, see FIG. 15.
  • the glass mat 113 is tucked into the corners but extends over the parting line of the mold 22.
  • the binding anchor members 12 and 12 are located in the mold 22 and the components of the polyurethane foam 11 are then mixed and immediately poured into the mold 22.
  • a second strip 13 of glass mat is placed over the foam 1 1 and a second layer 14 of unidirectional glass is placed thereover.
  • the mold 22 is closed and the assembly is allowed to cure. After curing the excess of the fiber glass mat 13 along the parting line of the mold is trimmed.
  • the resultant core assembly comprises a complete envelope of glass mat enclosing the foam body 11 with the binding anchors 12 and 12 formed in place at the inner face of the mat 13.
  • the top and bottom core surfaces include a full-length strip 14 of unidirectional glass exposed at its outer surface.
  • the core assembly is mounted axially by means of the winding tabs 21 at each end on a winding apparatus.
  • One or more fiber glass threads 16, see FIG. 16, which are either pretreated or fed through a resin bath are wrapped about the core in a helical winding pattern along the length of the ski.
  • Means such as not shown spaced pins or staples inserted into the side edges of the mold formed core may be provided to prevent thread slippage as the filament 16 is wound about the core.
  • the thread or threads 16 are generally wound in a long helix at an angle of approximately 20 to the longitudinal axis of the ski at the waist or central portion of the ski, and at an angle of approximately 45 at the tail and tip sections, and at an angle of from 20 to 45 in the transitional areas between the waist section and the tail and tip sections.
  • the molded core rotates about its lengthwise axis during the winding operation illustrated in FIG. 16, and a carriage 15 which feeds or lays the filament 16 onto the rotating ski moves back and forth along the ski while the ski is being rotated.
  • the speedof rotation of the ski and the stroke of the carriage are programmed with respect to each other so that the same winding pattern can be successively repeated.
  • skis processed through the winding machine according to a given program tape will all have the same characteristics in the final product.
  • a different program tape is selected.
  • the invention makes it possible to repetitively produce a great variety of skis having predetermined characteristics, and this can be done at minimal labor cost and without the end product being subject to variations due to errors in human judgement. For example, if two skis run according to the same program are cut transversely at the same place, an examination of the cut sections will show that both skis have the same number of filament wound threads. Also, the invention makes it possible to uniformly control the desired build of filament along the length of the ski.
  • the program tape can uniformly vary the speed of the rotating ski and the lengthwise traveling carriage with respect to each other independent of human judgement.
  • the filament 16' is resin coated just before it is deposited on the molded ski form. After winding the filament wound molded ski form 17 is placed in a mold to cure the resin on the filament, to permanently band the filament to each other and to the molded ski form. This provides a ski structure which is completely enveloped or encapsulated by a glass fiber helical winding. After curing of the filament resin then the means, such as not shown side pins, for temporarily holding the heli cal filament turns in place during the actual winding operation can be removed.
  • the top surface assembly 20 comprises a plastic material 23 such as polyurethane which is molded in place over the sides and upper and lower portions of the core assembly 17 so as to completely surround and be banded thereto as well as a bottom subassembly to be described shortly.
  • the top surface member 23 may of course, be molded separately as a channelshaped member and then assembled to the core 17.
  • the top surface assembly 20 as thus described is a relatively simple, strong and low-cost structure. Since there are no separate side members and the entire top surface assembly 20 may be formed in a single-molding operation, an additional savings in manufacturing costs results.
  • a protective metal edge 24 is also molded in place along the upper edges of the top surface assembly 20 during mold-forming of the plastic 23.
  • the metal edge 24 is preferably a helically wound wire or coil which prevents top edge damage and has other advantageous characteristics such as a high-quality decorative effect.
  • the edge 24 may also comprise separate left-hand and right-hand coils to provide herring bone decorative effect.
  • the coil can extend the full length of the ski, or be only at the front portion since that part is more vulnerable to top edge damage.
  • the bottom surface assembly 25 comprises, in the embodiment of FIGS. 3-7, a polyethylene running or skiing surface or strip 26 and steel running edges 27 positioned along the outer edges of the plastic strip 26.
  • the parts 26 and 27 are bonded to each other by a suitable material 26 such as a soft resilient urethane plastic.
  • the material 26' completely covers the top of skiing strip 26 to be firmly bonded thereto. It also completely encapsulates the part 27 except for itsouter running edge comer, and fills to-be-described openings 31, 39 formed therein, so as to firmly lock the part 27 in place with respect to the part 26.
  • the running edges 27 may be essentially L-shaped in cross section and may also include a plurality of elongated apertures 39, see FIG.
  • the apertures 39 may include a slot 31, see FIG. 8, extending to the inner portion of the edge 27 at the tip and tail sections of the ski to facilitate bending.
  • the apertures 39 and slots 31 assist in anchoring the edge 27 in position. It is entirely possible, however, to use a continuous L-shaped running edge 27 without the refinements of FIGS. 8 and 10.
  • FIG. 3 discloses the tip portion 33 of the ski 10 in cross section including the foam core 11, the epoxy-resin-filled glass filament wound portion 34 of the molded core and the outer polyurethane molded cover and sides 23 having the integral helically wound wire form 24 to prevent top edge damage and the polyethylene base or running surface 26.
  • a bottom tip protector 36 is welded to the running edges 27 and bonded to the running surface 26 to form a separate subassembly which can be stored and rapidly assembled to the core assembly 17 and top surface assembly 20 during manufacture.
  • FIG. 4 shows a view of the ski tail portion 41 including the above-described elements and having a tail guard 42 formed at the end of the ski l0.
  • Tail guard 42 may be an integral formation on material 23.
  • FIGS. 5, 6 and 7 illustrate, respectively, cross-sectional views of the nose section 33, waist section 44 and the tail section 41 of the ski 10.
  • the sections 41, 33 and 44 vary both in width and in height in order to provide the ski configuration of FIGS. 1 and 2.
  • the waist section 44 is shown raised above the ground 46 due to the bottom camber of the ski 10.
  • the shown configuration of the ski is obtained during the mold operations fonned on the ski form 17 prior to winding and during curing of the resin on the winding.
  • the molded ski form comprising parts ll, l2, 12', 13 and 14 is formed in mold 22.
  • the filament 16 is wound on the molded ski form and the resin on the filament is cured in a mold.
  • the ski form 17 is given some additional shaping to finalize its basic configuration.
  • the bottom subassembly 25 comprising parts 26, 26', 27 and 36 will have been separately fon'ned in readiness to be united with the ski form 17 and its top assembly 20 into a finished product.
  • the unique ski ll) which is described above and is produced by the method of the present invention represents a considerable improvement over conventional skis.
  • the subject ski is light in weight and well dampened to minimize vibration.
  • the winding operation can be carefully controlled, it is possible to obtain the precise strength and thickness for particular conditions of use. For example, it is possible to vary the application of the winding in order to produce a ski having the desired flex."
  • a low polar moment of inertia also results and tends to improve the maneuverability of the ski since the weight distribution can be carefully controlled during the winding operation.
  • FIGS. ll7-24l illustrate various embodiments of the present invention employing the core assembly 117 in unique combinations with different top-surface assemblies and bottom surface assemblies.
  • the drawings represent typical cross section views across the waist of the ski.
  • FIG. ll7 proposes a core 17 surrounded by a shell of soft resilient polyurethane material and a polyethylene base 66 having a pair of metal running edges 49 embedded in the corner positions thereof.
  • a metal member may also be embedded in the upper corner portions of the polyurethane shell 47 as described in the preferred embodiment.
  • the particular polyurethane material may be selected to resist top edge damage without the use of protective metal edges.
  • the core assembly 17 is enclosed within a polyurethane envelope at.
  • the upper protective edges 52 and the bottom running edges 53 are embedded in the polyurethane material.
  • the ski also includes a polyethylene running surface 54 which is bonded to the polyurethane envelope 51.
  • a further modification may include a plastic inlay 55 along the upper surface as shown in FIG. H9.
  • the ski shown in FIGS. 20 and 2ll comprises a core assembly 117, a top surface assembly 56 and a polyethylene base 57.
  • the top surface assembly 56 comprises a vacuum-formed plastic shell having aluminum edges 56 with anchoring means 66 formed thereon.
  • the base 57 includes steel running edges 59 which provide the necessary holding capacity on ice or snow.
  • the ski of FIG. 21 also includes a plastic inlay strip 6i which may be a phenolic material bonded along the upper surface thereof.
  • FIG. 22 shows an embodiment of the invention wherein the ski walls 62 are formed integral with a base portion 63 to pro vide a simple, strong and low cost structure.
  • the box thus formed provides an ideal cavity for loading and curing the wound core 117.
  • the flexing of the ski is somewhat less influenced by the steel edges 66 since they are resiliently bonded together with the base 65.
  • the shell 62 and 63 may consist of polyethylene material which is bonded to a polyethylene base 65.
  • the base plastic material and the shell plastic material may be the same or different plastic and may be another color if desired.
  • An upper plastic strip 76 and metal edges 77 are also bonded over the upper portion of the ski.
  • the ski of FIG. 23 comprises a soft resilient polyurethane cap 66 and a polyethylene base 67 bonded thereto in order to encapsulate the core assembly 117.
  • a unique running edge 66 is molded into the base 67.
  • the edge 66 is of smaller cross section than conventional edges and does not impart its tensile strength to resist bending of the ski.
  • the edge 66 may also slide (with frictional restraint) lengthwise within its enclosure but it is locked in and cannot be removed laterally. It may, therefore, be readily replaced and it also dampens the vibration of the ski and insulates the shocks from the main body of the ski.
  • a similar edge could also be used along the upper portion of the ski and in several of the other previously described ski designs.
  • FIG. 2 shows a ski including the core 17, upper protective edges 69, separate die'cut side strips 71, an upper plastic strip 72 and a lower base strip 73 having running edges 74 bonded thereto, all of which are bonded to the core 17.
  • a tip protector and a tail bumper may be included in the various moldings where it proves advantageous. Otherwise, they may be separately mounted to the ski.
  • the overall arrangement for the front and rear portions of the various designs is primarily the same as the preferred embodiment with the necessary changes to reflect the different structures.
  • a ski 75 includes a lightweight urethane foam core ill fabricated in the general shape of a ski and reinforced by one or more fiber glass layers, such as unidirectional layers M, as most clearly shown in FIG. 27.
  • a binding plate 112 is embedded in the core intermediate the ends thereof and near the upper surface thereof.
  • the reinforced core is then wound with a resin treated fiber glass filament l6 in a helical winding pattern, which may be varied as desired to impart predetermined characteristics to the ski '75.
  • a bottom assembly 25 which includes a pair of L-shaped running edges 27 joined adjacent the tips thereof, as at 36, are bonded to a polyethylene running surface 26 by a layer of soft resilient urethane plastic.
  • the bottom assembly is formed by laying the metal running edges 27 over the polyethylene running surface 26.
  • the running edges are L-shaped in cross section (FIG. 29) such that when laid over the running surface 26 a portion thereof will extend on top of the sides of the running surface.
  • a plurality of elongated apertures 39 are formed on the top surface of the running edges.
  • the soft urethane material is placed completely over the top of the as Sild metal running edges and running surface assembly with the material filling in the elongated apertures 39 to aid in forming a secure bond between the metal and the polyethylene.
  • the thus formed bottom assembly is joined to the wound reinforced core by an envelope of polyurethane 23 which, when reacting with the urethane layer used in bonding the bottorn assembly together, forms a firm bond therebetween.
  • This latter process is done in a mold such that the polyurethane envelope 23 is formed to a desired contour such as to form the sides and top of a ski.
  • a layer of plastic material 6i is placed on the top of the ski for decorative and appearance purposes.
  • the various portions of the ski are shown in cross section in FIG. 26 and in an exploded view, FIG. 26.
  • a snow ski comprising:
  • a core assembly including a lightweight and elongated preformed inner core member having a contour including a turned-up nose and bottom camber, and a filament positioned about the preformed core member in a helical pattern along the length of the core member,
  • a bottom surface assembly including :a plastic running surface and a metal running edge positioned along opposite edges of said running surface, and
  • a layer of urethane material positioned around said filament wound core assembly, said layer of urethane material forming at least part of the outer surface of the ski and bonding said bottom assembly to the filament wound core assembly.
  • a snow ski comprising:
  • a preformed core assembly including a lightweight inner core having a contour including a. turned-up nose and bottom camber, a layer of matted fiber glass reinforcing positioned at least partially around the preformed core assembly and a layer of unidirectional fiber glass material reinforcing positioned at least partially around the layer of matted fiber glass reinforcing, and a filament posi tioned over the reinforced preformed core in a helical pattern,
  • top and side assembly including an upper portion and downwardly extending side portions positioned on the core assembly
  • a bottom surface assembly including a plastic running surface and a metal running edge mounted along each edge the filament comprises a fiber glass thread applied about the 10 reinforcing material in a predetermined helical winding along the total length of the ski. 6.
  • the helical winding is applied about the reinforcing layer at an angle ranging from approximately to 45 to the longitudinal axis of the ski. 7.
  • the bottom surface assembly comprises a polyethylene base and a pair of metal running edges each having a pair of legs arranged in a substantially L-shaped configuration, said running edges being mounted'along the outer edges of the base with one leg of the L mounted along the upper surface of the polyethylene base and the other leg extending downwardly along the edge of the base to provide a gripping edge for the ski.
  • the metal running edge comprises a steel running edge having a shorter lower leg and a longer upper leg, said upper leg being mounted along the upper portion of the polyethylene base, said upper leg including a plurality of apertures extending therethrough and slotted portions connecting said apertures to the inner portion of said edge to permit flexing of said metal edge.
  • a snow ski comprising: 7 i an elongated foam core contoured in the general shape of a finished ski, a layer of fiber glass reinforcing mounted about at least part of said foam core, a bottom assembly including a pair of metal running edges and a running surface therebetween, and a layer of urethane plastic material at least partially enveloping the reinforced core, said layer of urethane plastic forming at least part of the outer surface of the ski and bonding the bottom assembly to the reinforced core.
  • the core is reinforced with fiber glass.
  • a snow ski according to claim 10 further comprising: a plastic top surface layer afiixed to the upper surface of the urethane layer.
  • a metallic binding plate is embedded in the reinforced core.
  • a snow ski comprising:
  • a bottom assembly including:
  • a layer of urethane plastic or the like at least partially encapsulating the core assembly and forming at least part of the outer surface of the ski, said layer of urethane plastic being in contact with the adhesive placed on top of the bottom assembly to bond the bottom assembly to the core assembly.
  • a snow ski according to claim 16 wherein the flanges of the metal running edges are provided with apertures and portions of the urethane plastic are placed in the apertures.
  • a method of making a snow ski comprising the steps of:
  • a method of making a snow ski according to claim 18, wherein said step of bonding the bottom surface assembly to the filament-wound reinforced foam core comprises forming a layer of plastic at least partially around the filament-wound reinforced foam core.
  • a method of making a snow ski comprising the steps of:

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US56089A 1967-03-30 1970-06-29 Ski and method of manufacture Expired - Lifetime US3635482A (en)

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Application Number Priority Date Filing Date Title
GB04485/67A GB1173199A (en) 1967-03-30 1967-03-30 Ski and Method of Manufacture

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US3635482A true US3635482A (en) 1972-01-18

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US (1) US3635482A (de)
AT (1) AT293239B (de)
CH (1) CH474275A (de)
DE (1) DE1703078A1 (de)
FR (1) FR1570564A (de)
GB (1) GB1173199A (de)

Cited By (45)

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US3776563A (en) * 1972-09-01 1973-12-04 A Tigert Ski and core construction
US3823956A (en) * 1970-12-22 1974-07-16 Maschf Augsburg Nuernberg Ag Ski
US3844576A (en) * 1973-07-18 1974-10-29 Olin Corp Vibration damped ski
US3894745A (en) * 1971-05-14 1975-07-15 Hoechst Ag Ski body made of plastics
US3901522A (en) * 1973-07-18 1975-08-26 Olin Corp Vibration damped ski
US3949988A (en) * 1972-06-08 1976-04-13 Fischer Gesellschaft M.B.H. Racket
US3958810A (en) * 1974-01-21 1976-05-25 Walter Bohm Ski with top edge portions of plastic material and device for securing the edge portions during manufacture
DE2555497A1 (de) * 1974-12-13 1976-06-16 Gunnar Bjertnaes Ski mit torsionsgehaeuse
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US4093218A (en) * 1976-11-26 1978-06-06 Burchers Samuel A Modular ball rebound apparatus
US4115506A (en) * 1976-12-17 1978-09-19 Nissei Plastics Industrial Co., Ltd. Method for producing injection molded ski
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US4261778A (en) * 1976-11-23 1981-04-14 A/S Norske Skiprodukter Method of producing skis
US4293142A (en) * 1979-07-16 1981-10-06 K-2 Corporation Vibration damped ski
US4313614A (en) * 1978-06-26 1982-02-02 Trak Incorporated Ski and its manufacture
FR2515524A1 (fr) * 1981-11-04 1983-05-06 Olin Corp Ski a armature pour descente
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US4498686A (en) * 1981-11-04 1985-02-12 Olin Corporation Laminated ski reinforcement members
US4511148A (en) * 1980-06-10 1985-04-16 Brunswick Corporation Scoop and cup device for playing a game
US4545597A (en) * 1981-11-04 1985-10-08 Olin Corporation Reinforcing ribs in a snow ski with a wood/foam core
US4679814A (en) * 1984-01-27 1987-07-14 Tristar Sports Inc. Randomly oriented reinforcing fibers in a snow ski
US4897063A (en) * 1985-11-14 1990-01-30 Wellington Leisure Products, Inc. Reaction injection molded recreation boards with spaced rectangular reinforcing rods
EP0411478A1 (de) * 1989-08-01 1991-02-06 Franz Völkl GmbH & Co. Ski und Tennis Sportartikelfabrik KG Ski mit einer Halteplattenanordnung zum Halten der Bindung
US5000475A (en) * 1987-05-22 1991-03-19 Salomon S.A. Ski having improved shock absorption and vibration resistance
US5002301A (en) * 1987-05-22 1991-03-26 Salomon S.A. Ski having improved shock absorption and vibration resistance
FR2658090A1 (fr) * 1990-02-15 1991-08-16 Salomon Sa Procede d'assemblage d'un ski par surmoulage, et structure de ski obtenue par ce procede.
US5160158A (en) * 1990-03-09 1992-11-03 Atomic Skifabrik Alois Rohrmoser Multi-ply ski
US5232241A (en) * 1992-02-24 1993-08-03 K-2 Corporation Snow ski with integral binding isolation mounting plate
AT398040B (de) * 1990-01-22 1994-08-25 Kaestle Ag Ski
AT400307B (de) * 1990-09-12 1995-12-27 Head Sport Ag Verfahren zur herstellung eines skis oder eines skiähnlichen sportgerätes und nach dem verfahren hergestellter ski oder skiähnliches sportgerät
US5687983A (en) * 1994-10-27 1997-11-18 Gsi, Inc. Light weight ballet skis and method of manufacture
US6059308A (en) * 1996-03-27 2000-05-09 Salomon S.A. Gliding board surrounded with a continuous running edge, and method of making same
FR2832933A1 (fr) * 2001-11-30 2003-06-06 Salomon Sa Planche de glisse
US20050077704A1 (en) * 2001-11-30 2005-04-14 Salomon S.A. Gliding or rolling board, such as a snowboard or skateboard, or the like
US20050206130A1 (en) * 2004-03-16 2005-09-22 Keith Parten Recreation board with high-definition graphics
US20060142184A1 (en) * 2002-06-20 2006-06-29 Pacific Biolink Pty Limited Protein based oral lubricant
US20060280927A1 (en) * 2005-06-13 2006-12-14 The Boeing Company Lightweight composite fairing bar an method for manufacturing the same
US20070018431A1 (en) * 2000-10-06 2007-01-25 Atomic Austria Gmbh Ski and method of manufacturing the ski
US20080248261A1 (en) * 2007-04-05 2008-10-09 Bonnett Robert A Printed article
US20090045605A1 (en) * 2007-08-17 2009-02-19 Pat Keane Snow ski
CN105288988A (zh) * 2015-09-23 2016-02-03 沈爱甫 一种运动滑板的制作方法
US20180185736A1 (en) * 2016-12-29 2018-07-05 Völkl Sports GmbH & Co. KG Lower flange having a bracketing effect
US20190329121A1 (en) * 2018-04-27 2019-10-31 K2 Sports, Llc Ski with composite structure having arcuate fibers
US20230241488A1 (en) * 2022-01-31 2023-08-03 The Moss Companies Device and method of manufacturing for a snow and water sport sliding device with a pneumatic core

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US3758126A (en) * 1971-05-21 1973-09-11 Graves Corp Ski construction and method of forming the same
FR2237655A1 (en) * 1973-07-20 1975-02-14 Michal Paul Ski of composite construction with metal corners - has square section thermoplastic body with edge wear strips
US4044083A (en) * 1973-10-29 1977-08-23 Amf Incorporated Method of making plastic ski
FR2402730A1 (fr) * 1977-09-08 1979-04-06 Serofim Articles en forme a base de fibres de carbone
AT390196B (de) * 1985-10-28 1990-03-26 Fischer Gmbh Verfahren zur herstellung eines ski nach und vorrichtung zur durchfuehrung dieses verfahrens
US4690850A (en) * 1986-06-06 1987-09-01 K-2 Corporation Fiber reinforced braided ski core and method and apparatus for making same
AT400400B (de) * 1987-02-27 1995-12-27 Salomon Sa Ski
DE3822900C2 (de) * 1988-07-06 1993-10-14 Danubia Petrochem Deutschland Verfahren zur Herstellung eines Skis oder eines skiähnlichen Sportgeräts
DE4325091A1 (de) * 1993-07-27 1995-02-02 Uwe Emig Aus mehreren Elementen zusammengesetzter Ski
CN110104322B (zh) * 2019-06-10 2023-08-29 内蒙古包钢安力金属科技有限公司 一种避免钢带裸卷损坏包装的包装结构及护罩

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US3687469A (en) * 1969-06-18 1972-08-29 Iwao Wada Method for producing ski-edge
US3823956A (en) * 1970-12-22 1974-07-16 Maschf Augsburg Nuernberg Ag Ski
US3894745A (en) * 1971-05-14 1975-07-15 Hoechst Ag Ski body made of plastics
US3949988A (en) * 1972-06-08 1976-04-13 Fischer Gesellschaft M.B.H. Racket
US3776563A (en) * 1972-09-01 1973-12-04 A Tigert Ski and core construction
US4077652A (en) * 1973-01-26 1978-03-07 Westinghouse Electric Corporation Plastic ski surfacing system
US3844576A (en) * 1973-07-18 1974-10-29 Olin Corp Vibration damped ski
US3901522A (en) * 1973-07-18 1975-08-26 Olin Corp Vibration damped ski
US3958810A (en) * 1974-01-21 1976-05-25 Walter Bohm Ski with top edge portions of plastic material and device for securing the edge portions during manufacture
DE2555497A1 (de) * 1974-12-13 1976-06-16 Gunnar Bjertnaes Ski mit torsionsgehaeuse
US4005875A (en) * 1974-12-13 1977-02-01 Gunnar Bjertnaes Ski construction of the torsion box type
US4203596A (en) * 1976-11-04 1980-05-20 Nippon Gakki Seizo Kabushiki Kaisha Racket and a method for manufacturing same
US4261778A (en) * 1976-11-23 1981-04-14 A/S Norske Skiprodukter Method of producing skis
US4093218A (en) * 1976-11-26 1978-06-06 Burchers Samuel A Modular ball rebound apparatus
US4115506A (en) * 1976-12-17 1978-09-19 Nissei Plastics Industrial Co., Ltd. Method for producing injection molded ski
US4313614A (en) * 1978-06-26 1982-02-02 Trak Incorporated Ski and its manufacture
US4293142A (en) * 1979-07-16 1981-10-06 K-2 Corporation Vibration damped ski
US4511148A (en) * 1980-06-10 1985-04-16 Brunswick Corporation Scoop and cup device for playing a game
US4449712A (en) * 1980-06-10 1984-05-22 Brunswick Corporation Method of playing a cestaball game with a scoop device
FR2515524A1 (fr) * 1981-11-04 1983-05-06 Olin Corp Ski a armature pour descente
US4498686A (en) * 1981-11-04 1985-02-12 Olin Corporation Laminated ski reinforcement members
US4455037A (en) * 1981-11-04 1984-06-19 Olin Corporation Laminated ski reinforcement members
US4545597A (en) * 1981-11-04 1985-10-08 Olin Corporation Reinforcing ribs in a snow ski with a wood/foam core
US4679814A (en) * 1984-01-27 1987-07-14 Tristar Sports Inc. Randomly oriented reinforcing fibers in a snow ski
US4897063A (en) * 1985-11-14 1990-01-30 Wellington Leisure Products, Inc. Reaction injection molded recreation boards with spaced rectangular reinforcing rods
US5000475A (en) * 1987-05-22 1991-03-19 Salomon S.A. Ski having improved shock absorption and vibration resistance
US5002301A (en) * 1987-05-22 1991-03-26 Salomon S.A. Ski having improved shock absorption and vibration resistance
EP0411478A1 (de) * 1989-08-01 1991-02-06 Franz Völkl GmbH & Co. Ski und Tennis Sportartikelfabrik KG Ski mit einer Halteplattenanordnung zum Halten der Bindung
AT398040B (de) * 1990-01-22 1994-08-25 Kaestle Ag Ski
FR2658090A1 (fr) * 1990-02-15 1991-08-16 Salomon Sa Procede d'assemblage d'un ski par surmoulage, et structure de ski obtenue par ce procede.
US5171509A (en) * 1990-02-15 1992-12-15 Salomon S. A. Process for assembling a ski by duplicate molding and ski obtained by use of this process
EP0442262A1 (de) * 1990-02-15 1991-08-21 Salomon S.A. Verfahren zur Herstellung eines Skis durch Abguss und nach diesem Verfahren hergestellter Ski
US5160158A (en) * 1990-03-09 1992-11-03 Atomic Skifabrik Alois Rohrmoser Multi-ply ski
AT400307B (de) * 1990-09-12 1995-12-27 Head Sport Ag Verfahren zur herstellung eines skis oder eines skiähnlichen sportgerätes und nach dem verfahren hergestellter ski oder skiähnliches sportgerät
US5232241A (en) * 1992-02-24 1993-08-03 K-2 Corporation Snow ski with integral binding isolation mounting plate
US5687983A (en) * 1994-10-27 1997-11-18 Gsi, Inc. Light weight ballet skis and method of manufacture
US6059308A (en) * 1996-03-27 2000-05-09 Salomon S.A. Gliding board surrounded with a continuous running edge, and method of making same
US20070018431A1 (en) * 2000-10-06 2007-01-25 Atomic Austria Gmbh Ski and method of manufacturing the ski
US7275756B2 (en) 2000-10-06 2007-10-02 Atomic Austria Gmbh Ski and method of manufacturing the ski
FR2832933A1 (fr) * 2001-11-30 2003-06-06 Salomon Sa Planche de glisse
US20050077704A1 (en) * 2001-11-30 2005-04-14 Salomon S.A. Gliding or rolling board, such as a snowboard or skateboard, or the like
US20060142184A1 (en) * 2002-06-20 2006-06-29 Pacific Biolink Pty Limited Protein based oral lubricant
US20050206130A1 (en) * 2004-03-16 2005-09-22 Keith Parten Recreation board with high-definition graphics
WO2005089395A2 (en) * 2004-03-16 2005-09-29 Nash Manufacturing, Inc. Recreation board with high-definition graphics
WO2005089395A3 (en) * 2004-03-16 2009-04-09 Nash Mfg Inc Recreation board with high-definition graphics
US8034268B2 (en) 2005-06-13 2011-10-11 The Boeing Company Method for manufacturing lightweight composite fairing bar
US20060280927A1 (en) * 2005-06-13 2006-12-14 The Boeing Company Lightweight composite fairing bar an method for manufacturing the same
US7416401B2 (en) * 2005-06-13 2008-08-26 The Boeing Company Lightweight composite fairing bar and method for manufacturing the same
US20080314516A1 (en) * 2005-06-13 2008-12-25 The Boeing Company Method for manufacturing lightweight composite fairing bar
US20080248261A1 (en) * 2007-04-05 2008-10-09 Bonnett Robert A Printed article
US20090045605A1 (en) * 2007-08-17 2009-02-19 Pat Keane Snow ski
CN105288988A (zh) * 2015-09-23 2016-02-03 沈爱甫 一种运动滑板的制作方法
US20180185736A1 (en) * 2016-12-29 2018-07-05 Völkl Sports GmbH & Co. KG Lower flange having a bracketing effect
US10780339B2 (en) * 2016-12-29 2020-09-22 Völkl Sports GmbH & Co. KG Lower flange having a bracketing effect
US20190329121A1 (en) * 2018-04-27 2019-10-31 K2 Sports, Llc Ski with composite structure having arcuate fibers
US10857445B2 (en) * 2018-04-27 2020-12-08 K2 Sports, Llc Ski with composite structure having arcuate fibers
US20230241488A1 (en) * 2022-01-31 2023-08-03 The Moss Companies Device and method of manufacturing for a snow and water sport sliding device with a pneumatic core
US11883736B2 (en) * 2022-01-31 2024-01-30 The Moss Companies Device and method of manufacturing for a snow and water sport sliding device with a pneumatic core

Also Published As

Publication number Publication date
DE1703078A1 (de) 1971-12-23
CH474275A (fr) 1969-06-30
GB1173199A (en) 1969-12-03
AT293239B (de) 1971-09-27
FR1570564A (de) 1969-06-13

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