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WO1992011781A1 - Crampons pour chaussures de sport - Google Patents

Crampons pour chaussures de sport Download PDF

Info

Publication number
WO1992011781A1
WO1992011781A1 PCT/GB1991/002315 GB9102315W WO9211781A1 WO 1992011781 A1 WO1992011781 A1 WO 1992011781A1 GB 9102315 W GB9102315 W GB 9102315W WO 9211781 A1 WO9211781 A1 WO 9211781A1
Authority
WO
WIPO (PCT)
Prior art keywords
socket
stud
spigot
forming member
projecting
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.)
Ceased
Application number
PCT/GB1991/002315
Other languages
English (en)
Inventor
Paul Andrew Kelly
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Trisport Ltd
Original Assignee
Trisport Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Trisport Ltd filed Critical Trisport Ltd
Publication of WO1992011781A1 publication Critical patent/WO1992011781A1/fr
Priority to PCT/GB1992/002391 priority Critical patent/WO1993012686A2/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43C—FASTENINGS OR ATTACHMENTS OF FOOTWEAR; LACES IN GENERAL
    • A43C15/00—Non-skid devices or attachments
    • A43C15/16—Studs or cleats for football or like boots
    • A43C15/161—Studs or cleats for football or like boots characterised by the attachment to the sole
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00—Soles; Sole-and-heel integral units
    • A43B13/14—Soles; Sole-and-heel integral units characterised by the constructive form
    • A43B13/22—Soles made slip-preventing or wear-resisting, e.g. by impregnation or spreading a wear-resisting layer
    • A43B13/24—Soles made slip-preventing or wear-resisting, e.g. by impregnation or spreading a wear-resisting layer by use of insertions
    • A43B13/26—Soles made slip-preventing or wear-resisting, e.g. by impregnation or spreading a wear-resisting layer by use of insertions projecting beyond the sole surface

Definitions

  • This invention relates to studs and their securement in footwear, and to footwear incorporating studs.
  • stud is used herein in a generic manner, therefore including both blunt projections and sharp or sharper projections of the kind sometimes referred to as spikes.
  • a widely used kind of stud comprises a ground-engaging portion and an upwardly projecting spigot which is externally screw-threaded.
  • a stud of that kind is described and illustrated, for example, in GB-A-2 028 102. Studs of that kind are used with articles of footwear provided with downwardly opening sockets that are formed with internal screw-threads complementary to those on the spigots. Sockets for articles of footwear are described and illustrated in, for example, GB-A-1 564 903 and GB-A-2 115 683. Such studs are installed by screwing their spigots into the sockets.
  • An object of the present invention generally is to provide an improved stud-and-socket system for articles of footwear.
  • the present invention provides a socket-forming member for incorporation into an article of footwear and a complementary stud for permanent or semi-permanent retention in the socket, the stud comprising a downwardly-projecting ground-engaging portion and an upwardly-projecting spigot for insertion into the socket, and the spigot being provided externally with projecting formations which are arranged to bite into a deformable surrounding wall portion of the socket-forming member upon insertion into the member to achieve a tight interengagement between the spigot and the member which holds the stud firmly in place and prevents ready withdrawal of the spigot.
  • At least the deformable wall portion of the socket-forming member may be of a plastics material.
  • the member may be one of a plurality of such members formed by a single moulded plastics unit to be incorporated into an article of footwear.
  • the invention is based on the principle that the socket wall is not conformed, or is not fully conformed, into a complementary shape with the stud spigot until the spigot is inserted into it, the projecting formations on the spigot forming or completing complementary formations in the boundary surface around the socket.
  • the interior of the socket (prior to insertion of the spigot) is preferably bounded by a smooth and non-recessed boundary surface, which may be of substantially cylindrical shape.
  • the invention can also lead to the advantageous consequence that there is no need for the spigot and socket to be in any predetermined rotational relationship before the spigot is inserted into the socket.
  • At least the ground-engaging portion of the stud is preferably sufficiently wear-resistant to enable the stud to be usable throughout the life of the article of footwear.
  • at least the ground-engaging portion may be of a sintered, wear-resistant material, for example a material comprising tungsten carbide and/or cobalt.
  • the present invention provides a method of permanently or semi-permanently securing a stud in a socket of a socket-forming member for incorporation into an article of footwear in which the stud comprises a spigot which is provided externally v/ith projecting formations which are arranged to bite into a deformable surrounding wall portion of the socket-forming member upon insertion into the socket, a tight interengagement between the spigot and the socket-forming member being achieved which holds the stud firmly in place and prevents ready withdrawal of the spigot.
  • the formations on the stud spigot preferably comprise a plurality of projecting teeth or barbs which are distributed about the spigot and are shaped to bite into the socket wall to resist withdrawal of the spigot from the socket.
  • the spigot is adapted to be inserted into the socket by application of an axially directed force, substantially without rotation of the stud.
  • the present invention provides a stud for permanent or semi-permanent engagement in a complementary socket of a socket-forming member incorporated into an article of footwear, the stud comprising a downwardly-projecting ground-engaging portion and an upwardly-projecting spigot for insertion into the complementary socket, and the spigot being provided externally with projecting formations comprising a plurality of teeth or barbs which are distributed about the spigot and are shaped to bite into a smooth and un-recessed deformable socket wall to resist withdrawal of the spigot from the socket.
  • Figure 1 is a vertical section through part of an article of footwear showing a first arrangement of stud and socket
  • Figure 2 shows a similar arrangement to Figure 1 but in which an alternative form of stud is employed.
  • a shoe includes an outsole 1 made of leather.
  • a plurality of holes 2 are formed through the outsole, one such hole being illustrated.
  • the hole 2 houses a socket-forming member 3 which fits tightly within the hole.
  • the member 3 is initially provided with a plain (smooth and un-recessed) cylindrical bore, open at its lower end, and forms part of a socket unit which provides a plurality of such sockets, and a plate 4 from which the sockets depend.
  • the plate 4 may be imperforate or may be formed with openings, as desired.
  • the socket unit is formed as a unitary moulding of a suitable plastics material such as an acetal resin. As the bores of the sockets are initially cylindrical the unit can readily be moulded in a simple two-part mould.
  • each socket-forming member 3 fits tightly within a corresponding hole in the outsole.
  • the outsole may not be of exactly uniform thickness throughout but the arrangement is preferably such that the lower ends of the socket-forming members are substantially flush with the lower ends cf the holes 2, or just accommodated within the holes.
  • the assembled socket unit and outsole are covered by a thin insole (not shown) .
  • a stud 5 is illustrated as having been assembled with the socket.
  • the stud has a downwardly-projecting ground-engaging portion 6 of tapered shape with a rounded tip. It also includes an upwardly-projecting spigot 7 of generally cylindrical shape but formed on its outer surface with projecting retaining formations 8. Between the ground-engaging portion 6 and the spigot 7 there is an outwardly directed flange disc 9 of dished shape.
  • a central spike 10 is formed which provides both the ground-engaging portion 6 and an upwardly-extending cylindrical pin 11. At the upper end of the ground-engaging portion, the spike is flared outwardly to form an upwardly-facing annular shoulder 12 extending around the lower end of the pin 11.
  • the flange disc 9 of the stud is provided by a separate element having a central bore 13 which enables it to be slid down the pin 11 to abut the shoulder 12.
  • a tubular stud-retaining collar 14 is next assembled on to the pin to abut at its bottom end an upper surface 15 of the disc; the flange disc 9 and the collar 14 are both sliding fits with the pin 11.
  • an annular lip 16 around a hollowed upper end portion of the pin 11 is rolled over (radially outwards) to overlie a frusto-conical upper end face 17 of the collar 14, the flange disc 9 and the collar 14 so becoming secured axially between the shoulder 12 and the out-turned
  • the spike can be made in any suitable manner and of any suitable material or combination of materials, bearing in mind a need to give the ground-engaging portion 6 a high degree of wear-resistance whilst the lip 16 must be rollable over to secure the spike assembly.
  • Composite spike constructions are known in the art, for example as described in GB-A-1277684 wherein a tungsten carbide ground-engaging tip is cemented on to a steel body.
  • the flange disc 9 may be of metal or plastics, or any other suitable material.
  • the stud-retaining collar 14 is of metal, though it could be of any suitably hard material as compared with the plastics material of the socket-forming member 3.
  • the collar shown in Figure 1 comprises externally a series of axially-equispaced circumferential rings of uniform over all diameter. Each ring is formed by an upwardly-convergent frusto-conical portion 18 of the collar, presenting a flat annular under-surface 19 and a conical outer surface 20, the two surfaces meeting at a sharp circular edge 21. Notches 22 are cut into the rings to interrupt the edges 21 at regular intervals about the axis, so in effect dividing peripheral portions of the rings into discrete teeth or barbs 23 which form the stud-retaining formations 8.
  • the upper end of the spigot 7 is inserted into the lower end of the socket and the stud is pushed axially into the socket.
  • the stud is preferably introduced into the socket by cold insertion (rather than, for example, necessitating generating heat by ultrasound to cause localised softening of the plastics wall to ease insertion) .
  • the stud enters the socket substantially without rotation, no effort being made to cause rotation and the teeth or barbs 23 not be directed to induce rotation.
  • the stud is driven in until the rim of the flange disc 9 presses into the outsole 1 or until an inner part of the flange disc abuts the lower end of the socket-forming member.
  • the rings of the teeth or barbs 23 bite into the material of the plastics wall bounding the socket.
  • the material has some resilience and relaxes to fill (partially at least) the spaces behind the rings.
  • the stud so becomes locked into the socket, there being a tight interengagement between the stud spigot and the socket-forming member 3 which holds the stud firmly in place.
  • the teeth or barbs 23 are shaped to prevent withdrawal of the spigot and the stud is effectively permanently installed in the socket; if the stud were to be pulled out of the socket the teeth or barbs 23 would ordinarily do such damage to the socket wall as to render the socket non-reusable.
  • a stud comprising a different form of retaining collar 14 is shown in Figure 2.
  • the collar comprises externally a single helical flight 24, instead of the series of rings of the first embodiment.
  • the flight 24 acts in a self-tapping manner, deforming the boundary wall around the socket to form a corresponding thread.
  • the interengagement between the stud spigot and the socket member 3 is tight, and the stud is not provided with any formations which would ease removal by unscrewing.
  • suitably shaped notches or barbs may be formed to interrupt the flight 24.

Landscapes

  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)

Abstract

Crampon constitué d'une partie destinée à se trouver en contact avec le sol (6) et d'un emboîtement (7) qui est conçu pour être fixé à demeure, après son introduction, dans une cavité cylindrique simple formée d'un élément en plastique (3) incorporé dans une chaussure. Le crampon comprend plusieurs anneaux (8) en forme de cônes tronqués qui présentent des bords pointus (21) et des entailles (22) qui forment des dents ou des barbes discontinues (23). Lorsqu'on insère axialement l'emboîtement dans la base, le plastique de la paroi de la base se déforme tout en se détendant suffisamment pour remplir les espaces existant entre les anneaux, les dents ou les barbes (23) s'opposant alors au retrait du crampon. Le crampon est formé d'un assemblage d'éléments comprenant une pointe centrale en acier (10), un disque à embase (9) et un collier de retenue (14), ainsi qu'une lèvre d'extrémité supérieure (16) de pointe qui est retournée pour fixer l'assemblage.
PCT/GB1991/002315 1991-01-04 1991-12-23 Crampons pour chaussures de sport Ceased WO1992011781A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/GB1992/002391 WO1993012686A2 (fr) 1991-12-23 1992-12-23 Crampons pour chaussures

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB919100112A GB9100112D0 (en) 1991-01-04 1991-01-04 Studs for footwear
GB9100112.3 1991-01-04

Publications (1)

Publication Number Publication Date
WO1992011781A1 true WO1992011781A1 (fr) 1992-07-23

Family

ID=10687938

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1991/002315 Ceased WO1992011781A1 (fr) 1991-01-04 1991-12-23 Crampons pour chaussures de sport

Country Status (2)

Country Link
GB (1) GB9100112D0 (fr)
WO (1) WO1992011781A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9833044B2 (en) 2015-01-02 2017-12-05 Nike, Inc. Cleated article of footwear

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2652638A (en) * 1952-02-23 1953-09-22 John H Shoemaker Shoe calk assembly
GB1082517A (en) * 1963-06-10 1967-09-06 Coker & Sons Improvements in or relating to studs for boots or shoes
GB2115683A (en) * 1982-02-17 1983-09-14 Triman Ltd Studded footwear
EP0171228A1 (fr) * 1984-07-27 1986-02-12 Trisport Limited Crampons pour chaussure

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2652638A (en) * 1952-02-23 1953-09-22 John H Shoemaker Shoe calk assembly
GB1082517A (en) * 1963-06-10 1967-09-06 Coker & Sons Improvements in or relating to studs for boots or shoes
GB2115683A (en) * 1982-02-17 1983-09-14 Triman Ltd Studded footwear
EP0171228A1 (fr) * 1984-07-27 1986-02-12 Trisport Limited Crampons pour chaussure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9833044B2 (en) 2015-01-02 2017-12-05 Nike, Inc. Cleated article of footwear

Also Published As

Publication number Publication date
GB9100112D0 (en) 1991-02-20

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