US3465653A - Means providing a sliding surface - Google Patents

Means providing a sliding surface Download PDF

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Publication number
US3465653A
US3465653A US676181A US3465653DA US3465653A US 3465653 A US3465653 A US 3465653A US 676181 A US676181 A US 676181A US 3465653D A US3465653D A US 3465653DA US 3465653 A US3465653 A US 3465653A
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Prior art keywords
bed
teeth
sliding
rows
elements
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Expired - Lifetime
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US676181A
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English (en)
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Alwin Schipper
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Individual
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Individual
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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

  • a bed which provides a surface on which objects may slide, in a generally preferred direction, e.g., for use on a ski-slope.
  • the bed is comprised of a number of structural elements arranged in a series of rows, the rows being interconnected one behind the other to form a flexible mat.
  • the structural elements abut each other side-by-side within the rows, and the line of abutment so formed is staggered from row to row.
  • the structural elements are comb-like articles having a number of elastically deformable teeth extending upwardly from a base.
  • the elements also include tubular lugs which extend in the preferred direction from the base through which wires may be passed to interconnect rows of elements.
  • the present invention relates to a bed made of elastic material which provides a surface on which objects such as skis or sleds may slide.
  • the surface is made up of a number of structural elements having upwardly extending elastically deformable teeth.
  • the structural elements are connected together in a series of rows by means of wires in such a way that the lines separating side-by-side abutting elements are staggered with respect to each other from row to row.
  • One of the prior art beds which provides a sliding surface serves as a ski mat and is made of rectangular plates having a side dimension ratio of approximately 2:1.
  • the surfaces of the plates are provided with pins which extend upwardly and which are arranged in a number of rows, one behind the other.
  • On the lower side of each plate there is a keyhole-shaped groove running near to and parallel to each narrow side.
  • Each plate thus forms a structural element which can be bound into a mat with wires disposed in the grooves running transverse to the sliding direction.
  • the structural elements are arranged checkerboard fashion with corners of neighboring elements abutting each other so that, between every four elements, there is an empty space the size of a single structural element.
  • Beds for providing a sliding surface for skiing have also been made of brush-shaped strips, having metal zigzag or wave-shaped moldings with a U-type configuration.
  • the bristles here stand vertical on the foundation and there is a considerable distance between the metal moldings.
  • One object of the present invention is to design a bed for providing a sliding surface in a given preferred direction which has good sliding properties in the preferred direction, yet upon which changes of direction may be undertaken as desired.
  • Another object of the present invention is to design a bed for providing a sliding surface, for example, for skiing or tobogganing upon which a person may fall without danger of injury.
  • Another object of the present invention is to design a bed for providing a sliding surface comprised of structural elements which make the bed easy to manufacture, transport and install.
  • the bed for providing a sliding surface out of comb-like structural elements having a plurality of upwardly extending elastically deformable teeth with tubular lugs extending in the preferred sliding direction connected at the base of the teeth.
  • the structural elements can be arranged abutting each other side-by-side to form rows, and the rows can be arranged one behind the other so that the lines of abutment are staggered from row to row.
  • the structural elements in this configuration are held together by means of wires which pass through the tubular lugs which may also serve as spacers between the individual rows of elements.
  • This bed as so constructed achieves good sliding properties since the teeth of the individual structural elements are made to lean away from the vertical in the preferred sliding direction. Because the teeth elastically deform beneath an object, leaving the teeth not supporting weight higher than those beneath the object, an object sliding over the teeth forms a kind of groove.
  • This arrangement makes it possible, for example, when skiing, to execute Christies and stem turns for an instantaneous change of direction. No injuries can occur in case of a fall since first, the teeth project all the way to the base making a soft mat, and second, the base includes no projecting parts.
  • An additional particular advantage of the bed according to the present invention is that once the structural elements are arranged in rows, they form a kind of carpet which can be easily roller and so transported. When this bed is brought to the place where it is to be used it can, for example, be simply attached at the top of the slope.
  • the comb-like construction of the individual structural elements affords an especially high elasticity and flexibility since not only the teeth but also the base of the element which joins the teeth yields under a load.
  • the tubular lugs which guide the wire and the wire itself are also flexible permitting movement of the structural element as a whole relative to the neighboring elements.
  • the bed according to the present invention is continuous, it further eliminates injuries which might occur with the checkerboard-type mat. There is no danger that the individual structural elements be torn from this bed, even under high loads, since the lugs or spacers completely surround the supporting wire.
  • the lugs as spacers between the rows, the distance between rows can be matched to the corresponding load requirement by proper selection of the lug length. The higher the load the shorter can be made the row-to-row distance.
  • the sliding bed according to the present invention can also find use in medicine.
  • the bed may be used, for example, for massage-type treatment of parts of the body over which it is made to slide.
  • FIGURE 1 is a face view of a section of the sliding bed according to the present invention.
  • FIGURE 2 is a front view of a section of a structural element of the sliding bed according to the present invention.
  • FIGURE 3 is a side view of two structural elements arranged and connected one behind the other. One of the structural elements is shown in cross section.
  • FIGURE 4 is a side view of another embodiment of a structural element of the sliding bed according to the present invention.
  • FIGURE 5 is a bottom view of two larger constructional sliding bed units joined together, each unit being comprised of a number of individual structural elements.
  • FIGURE 6 is a face view of two rows of structural elements illustrating how the line of abutment between two srtuctural elements is displaced from row to row.
  • FIGURE 2 a section of the comb-like structural element, according to the present invention, consisting of the teeth 1 connected together by means of a strip 2 serving as a base.
  • a number of tubular lugs 3 running in the preferred sliding direction are constructed, for example, as bushings, and are molded onto the base 2, as may best be seen in FIGURES 3 and 4. These lugs lie directly on a foundation, such as the ground, not shown.
  • the lugs 3 serve as practical spacers between the structural elements arranged in rows, one rowbehind the other.
  • the teeth may be arranged so as to angle in the preferred sliding direction. It is practical to make the teeth project in the foundation or ground plane a distance greater than the length of the tubular spacers 3. This insures that the teeth 1 of structural elements connected together in rows, one row behind the other, with connecting wires 4 overlaps, like shingles on a roof, as shown in FIGURE 3.
  • the connecting wires 4 which are passed through the tubular spacers 3 provide a strong simple connection between the individual structural elements.
  • the wires also insure a softness and flexibility of the bed as a whole; they permit the bed to be rolled like a carpet for shipping and, at the place where the bed is to be placed in use, to be easily unrolled for installation.
  • the teeth 1 are preferably made thicker or reinforced with ribs at their lower extremities. They are constructed in the form of a thin wedge 9 tapering towards the tip, a shape that exhibits a 4 special elastic deformability and protects against accidents.
  • FIGURE 1 shows a number of structural elements, according to the present invention, arranged side by side in rows, one row behind the other so that the teeth 1 of one row overlap the teeth of the previous row. Consecutive rows are laterally displaced so that gaps between individual teeth are covered.
  • the teeth 1 point in the preferred sliding direction which is marked by the arrow 6.
  • the boundary lines 5 are drawn continuously along the top of the teeth to better illustrate the roofing shingle-like overlapping as well as the lateral displacement of the teeth. These boundary lines 5 are in no way intended to represent elements connecting the individual teeth, however. Rather, each tooth is completely independent of its neighboring teeth and, therefore, elastically deformable.
  • the preferred sliding direction given by the arrow 6 is the main direction of travel of objects sliding over the bed.
  • this direction should be aimed down the slope.
  • the designation of the preferred sliding direction should not be understood to place any limitation on the use of the mat since, in theory, it is possible even to slide in the direction opposite to that indicated by the arrow, although the sliding properties, in such a case, would be considerably worsened. In directions which deviate from the direction of the arrow 6 less than toward the left or toward the right, however, the change in the sliding properties is only slight. Within this angular range it is possible to execute all the usual skiing turns and figures including the wedel.
  • FIGURE 6 is a view, similar to the view of FIGURE 1, which illustrates how the individual structural elements are arranged and connected together in rows, by means of the wires 4, so as to abut other elements side by side.
  • the lines of abutment in a given row are displaced with respect to the lines of abutment of the rows in front of, and behind, the given row as shown.
  • FIGURE 5 illustrates a sliding bed composed of a number of individual structural elements joined together by means of wires 4.
  • the ends of the wires 4 are bent into eyelets 8 through which a transversely running wire 7 is passed forming a complete unit of construction.
  • the length and width of this unit of construction can be arbitrarily chosen to suit the purpose for which the sliding bed is employed.
  • FIGURE 5 illustrates one way in which such a connection can be accomplished.
  • the structural elements according to the present invention can be made of any suitable elastically deformable material such as plastic.
  • the tubular lugs 3 may be designed, as with the embodiments described above, to serve as spacers between the individual rows of structural elements.
  • the sliding bed is not limited in its purpose to sports, such as skiing and tobogganing. It may also be employed, for example, as a sliding chute or may serve to transport objects, such as boxes, containers, etc. No additional elements, such as plates or the like, are required when the bed is used for sliding.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Paving Structures (AREA)
  • Carpets (AREA)
US676181A 1966-10-20 1967-10-18 Means providing a sliding surface Expired - Lifetime US3465653A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DESC039708 1966-10-20

Publications (1)

Publication Number Publication Date
US3465653A true US3465653A (en) 1969-09-09

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ID=7435292

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US676181A Expired - Lifetime US3465653A (en) 1966-10-20 1967-10-18 Means providing a sliding surface

Country Status (9)

Country Link
US (1) US3465653A (fr)
AT (1) AT273765B (fr)
BE (1) BE705388A (fr)
CH (1) CH467087A (fr)
DE (1) DE1578933A1 (fr)
FR (1) FR1552962A (fr)
GB (1) GB1181899A (fr)
NL (1) NL6714057A (fr)
SE (1) SE308683B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3557668A (en) * 1968-02-21 1971-01-26 Jacques Leon Alexandre See Elastic soft structure, and its application to the making of sporting tracks and runs
US3581630A (en) * 1968-08-09 1971-06-01 Francis F Del Piano Plastic ski track

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3339553C2 (de) * 1983-11-02 1987-03-26 Walter 6053 Obertshausen Kempe Bodenbelag für Tennisplätze

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1526267A (en) * 1924-09-03 1925-02-10 Dessau Morland Micholl Rubber article
US1766073A (en) * 1929-03-15 1930-06-24 Hartzler Yielding upright traffic marker
US2082563A (en) * 1935-05-21 1937-06-01 Bauer William Stanley Mat for the use of golfers
US2174716A (en) * 1938-05-26 1939-10-03 Hugh F Bethell Amusement device
US2327640A (en) * 1941-05-29 1943-08-24 Adolph R Hendry Surfacing mat for landing fields

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1526267A (en) * 1924-09-03 1925-02-10 Dessau Morland Micholl Rubber article
US1766073A (en) * 1929-03-15 1930-06-24 Hartzler Yielding upright traffic marker
US2082563A (en) * 1935-05-21 1937-06-01 Bauer William Stanley Mat for the use of golfers
US2174716A (en) * 1938-05-26 1939-10-03 Hugh F Bethell Amusement device
US2327640A (en) * 1941-05-29 1943-08-24 Adolph R Hendry Surfacing mat for landing fields

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3557668A (en) * 1968-02-21 1971-01-26 Jacques Leon Alexandre See Elastic soft structure, and its application to the making of sporting tracks and runs
US3581630A (en) * 1968-08-09 1971-06-01 Francis F Del Piano Plastic ski track

Also Published As

Publication number Publication date
NL6714057A (fr) 1968-04-22
FR1552962A (fr) 1969-01-10
GB1181899A (en) 1970-02-18
DE1578933A1 (de) 1972-04-13
SE308683B (fr) 1969-02-17
CH467087A (de) 1969-01-15
AT273765B (de) 1969-08-25
BE705388A (fr) 1968-03-01

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