US3557668A - Elastic soft structure, and its application to the making of sporting tracks and runs - Google Patents

Elastic soft structure, and its application to the making of sporting tracks and runs Download PDF

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Publication number
US3557668A
US3557668A US801480A US3557668DA US3557668A US 3557668 A US3557668 A US 3557668A US 801480 A US801480 A US 801480A US 3557668D A US3557668D A US 3557668DA US 3557668 A US3557668 A US 3557668A
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United States
Prior art keywords
arc
row
members
strut
base
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US801480A
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English (en)
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Jacques Leon Alexandre See
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Assigned to SEE, JACQUES LEON ALEXANDRE reassignment SEE, JACQUES LEON ALEXANDRE ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: ROYALTY SA.
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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C13/00—Pavings or foundations specially adapted for playgrounds or sports grounds; Drainage, irrigation or heating of sports grounds
    • E01C13/10—Pavings or foundations specially adapted for playgrounds or sports grounds; Drainage, irrigation or heating of sports grounds for artificial surfaces for outdoor or indoor practice of snow or ice sports
    • E01C13/12—Pavings or foundations specially adapted for playgrounds or sports grounds; Drainage, irrigation or heating of sports grounds for artificial surfaces for outdoor or indoor practice of snow or ice sports for snow sports, e.g. skiing or ski tow track

Definitions

  • these elements are. made. up of flexible material eachof which has two struts from which project legs spaced out at regular intervals extending substantially at right angles in relation to said struts, said'legs being held together in pairs by crossmembers having medial projections or protuberances, saidtwo struts being brought nearer to each other so as to bring them into contact, whereby said. uprights are brought into alignment with each other and said crossmembers are bent into an arc of a circle, said struts then being locked together and the elements are assembledin series side by side by partially overlapping them. End; portions of the crossmembers thereuponlie: adjacent the arcuate portions of two adjacentelenients. 7
  • the process is characterized, furthermore, in that the crossmembers connected by the' legsto each ofthe two struts have,
  • FIG. 1 is a partial plan view of one of the constituent elemerits of the flexible structure 'of the invention.
  • FIG. 2 is an elevation seen along the line II-Il of FIG. 1.
  • FIG. 3 is a side elevation seenalong the line Ill-III of FIG. 2. These three FIGS. are shown in their original shape before being bent into shape for assembly into a ski run or track.
  • FIG. 4 is an elevation, showing the element inits assembled shape.
  • FIG. 5 is a side elevation seen along the line V-V of FIG. 4.
  • FIG. 6 is side elevation, similar to FIG. 4, showing several elements assembled to form the flexible structure.
  • FIG. 7 is a plan view corresponding to FIG. 6.
  • FIG. 8 is a plan view, showing an alternative embodiment.
  • FIG. 9 is an elevation similar to that of FIG. 6 but with the elements of the alternative embodiment of FIG. 8.
  • FIG. 10 is a diagrammatic illustration of a manner of assembling the elements.
  • each element formingthe structure comprises two parallel struts l and 2 from which there extend equidistant legs 3, 30,31: ..3n and 4, 4a,4b These legs are held together, at their top, by crossmembers 5, 50,5! ....5n. on which ball-shaped protuberances 6 are formed. These protuberances can be joined to each other or separated by a space as shown.
  • One of the struts, the strut 2 for instance, has hooks 7 at regular spaces which and which are directed downwards as shown in FIG. 2.
  • Rings 8 and 9 are formed integrally with crossmembers 5, 5a,etc., and
  • each ring 8,9 is spaced equidistantly I from its respective adjacent legs 3, 4.
  • the drawing shows that the rings 8 and 9 are formed on each of the crossmembers 5, 50,511.. 5n,b'ut this isnot necessary, as said rings need to be placed only at certain distances from said crossmembers,
  • FIG. 2 also showsthat it isadvantageous to join the legs 3 and crossmembers 5 by small gussets 10, so that the elements do not risk breaking at this point.
  • the elements described in the foregoing are preferably made by moulding in synthetic resin and, more particularly, of synthetic resin having good elasticity such as polyamides polycthylenes, etc.
  • the crossmembers 5, 5a,5b 5n are bent by bringingthe struts 1 and 2 closer together and the strut l is inserted in the hooks 7 made as from the strut 2, as shown in FIG. 4.
  • FIG. 4 shows that the deformation thus imparted to the crossmembers 5 brings the legs 3, 4 into a longitudinally aligned position where they form the base of said element, whereas said crossmembers become curved in an arc of a cirstance, by inserting pegs 11 in, said rings as shown by way of example in FIG. 6.
  • Other types of catches can be used, said peg 11 being shown only as one illustrative manner of making the connection.
  • each crossmembers 5 can bend slightly in the direction shown by the arrow f in FIG. 7, that is to say, crosswise to its plane before bearing on a following crossmember which can itself also bend. In this manner, we obtain a progressively damping flexibility effect, which is a function of the stress applied crosswisely to the crossmembers 5, 5a,etc.
  • one of the struts is always provided with hooks 7 for holding the two struts together and binds the crossmembers 5 in an arc of acircle.
  • the linking rings 8 and 9, however, are eliminated.
  • two rows of protuberances 6, the rows 6, and 6, are provided, these being connected by continuous small bars 12 and the rows of contiguous protuberances, namely the rows 6 and 6 comprise spurs 13 and I4 integral with each protuberance.
  • These spurs are made obliquely as shown in FIG. 8 and are preferably of triangular section as shown in FIG. 9. The obliqueness of the spurs and their triangular shape with a top directed towards the crossmembers of acontiguous element, when the latter are engaged between said spurs, greatly facilitates the introducing and locking of the elements together after they have been assembled.
  • FIG. 9 This method of assembling which is somewhat similar to that of a zip fastening imparts a certain amount of freedom to the assembled elements, said elements being able to have play between them in relation to the others,
  • FIG. shows that the method of assembling the elements of H05. 8 and 9 makes it possible to produce sheets of any extent; as a matter of fact, an element can be easily made connected to four elements a,, (1,, a, and a and elements a, and a acting as a link with an element b which is an extension of the element a,said element b,being able then to be used for positioning elements placed as an extension of elements a, and a, and so on.
  • a device for the assembly of artificial ski runs comprising a flexible element having:
  • each base member substantially in the plane of said base member
  • said strut members being substantially parallel to and in proximity to each other;
  • a device in which said upwardly extending member has a series of protuberances formed along the uppermost portion of its length.
  • a device in which at least one of said strut members has means for engaging and locking the adjacent strut member.
  • a device in which said upwardly extending arc member has means disposed on opposite ends of said arc for engaging an adjacent element when assembled therewith to form a ski track.
  • said means comprises an eye on each element aligned for the reception of a fastener when assembled.
  • a device in which said upwardly extending arcuate member and said base members are joined by a gusset at their juncture.
  • An artificial ski track comprising a series of interlocked flexible elements, each element comprising:
  • a strut member extending angularly outwardly of said are and substantially in the plane of said base members;
  • said elements being arranged in rows with the elements in one row staggered with relation to the elements of each adjacent row, the element of each row being locked to the adjacent element in said row, with the arcuate portion of the element of one row overlapping portions of the two adjacent elements of the adjacent row, and the strut members of each element of each row lying parallel to the strut members of each element of the next row.
  • An artificial ski track structure comprising a row of interlocked flexible elements:
  • each element comprising an upwardly extending arcuate rtion
  • each base member joining the ends of each base member and extending angularly outwardly of said are and substantially in the plane of said base members;
  • An artificial ski track comprising staggered rows of interlocked flexible elements according to claim 14:
  • each row being staggered and offset with respect to the elements of each adjacent row;
  • a device for the assembly of artificial ski runs comprising a flexible frame element having at least one longitudinal member adapted to be bent into the form of an arc;
  • a base member extending angularly from each end of said longitudinal member, said base members being substantially parallel to each other and adapted to be bent towards each other to form a base for said arc;
  • a strut member extending angularly outwardly from the end of each base member in substantially parallel relation to each other, and connecting the base members at each end of said frame;
  • a device for the assembly of artificial ski runs comprismg:
  • a flexible gridlike frame element having a series of parallel tracks forming bars adapted to be bent into the form of an arc;
  • said strut members being adapted to be brought into proximity to each other when said arms are bent into a base for said are;
US801480A 1968-02-21 1969-02-24 Elastic soft structure, and its application to the making of sporting tracks and runs Expired - Lifetime US3557668A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR140679 1968-02-21

Publications (1)

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US3557668A true US3557668A (en) 1971-01-26

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US801480A Expired - Lifetime US3557668A (en) 1968-02-21 1969-02-24 Elastic soft structure, and its application to the making of sporting tracks and runs

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US (1) US3557668A (xx)
AT (1) AT296116B (xx)
BE (1) BE728478A (xx)
CH (1) CH506306A (xx)
DE (1) DE1908077C3 (xx)
FR (1) FR1572252A (xx)
GB (1) GB1264152A (xx)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3809391A (en) * 1972-04-21 1974-05-07 Royalty Sa Flexible structure for ski tracks and the like
US3961751A (en) * 1974-03-29 1976-06-08 Societe Kessler S.A. Artificial cross-country skiing path

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990005004A1 (de) * 1988-11-12 1990-05-17 Walter Dewald Künstliche skipiste
CN107338698A (zh) * 2017-08-10 2017-11-10 西安健坤游乐设施有限公司 一种旱地滑雪地面砖及制造方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3465653A (en) * 1966-10-20 1969-09-09 Alwin Schipper Means providing a sliding surface

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3465653A (en) * 1966-10-20 1969-09-09 Alwin Schipper Means providing a sliding surface

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3809391A (en) * 1972-04-21 1974-05-07 Royalty Sa Flexible structure for ski tracks and the like
US3961751A (en) * 1974-03-29 1976-06-08 Societe Kessler S.A. Artificial cross-country skiing path

Also Published As

Publication number Publication date
BE728478A (xx) 1969-07-16
CH506306A (fr) 1971-04-30
AT296116B (de) 1972-01-25
DE1908077C3 (de) 1978-11-16
FR1572252A (xx) 1969-06-27
GB1264152A (xx) 1972-02-16
DE1908077A1 (de) 1969-09-04
DE1908077B2 (de) 1978-03-16

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Legal Events

Date Code Title Description
AS Assignment

Owner name: SEE, JACQUES LEON ALEXANDRE,CALIFORNIA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:ROYALTY SA.;REEL/FRAME:004599/0967

Effective date: 19860317

Owner name: SEE, JACQUES LEON ALEXANDRE, 10 800 VICENZA WAY-BE

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:ROYALTY SA.;REEL/FRAME:004599/0967

Effective date: 19860317