WO1993012686A2 - Studs for footwear - Google Patents

Studs for footwear Download PDF

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Publication number
WO1993012686A2
WO1993012686A2 PCT/GB1992/002391 GB9202391W WO9312686A2 WO 1993012686 A2 WO1993012686 A2 WO 1993012686A2 GB 9202391 W GB9202391 W GB 9202391W WO 9312686 A2 WO9312686 A2 WO 9312686A2
Authority
WO
WIPO (PCT)
Prior art keywords
stud
nose
stem
end portion
article
Prior art date
Application number
PCT/GB1992/002391
Other languages
French (fr)
Other versions
WO1993012686A3 (en
Inventor
Paul Andrew Kelly
Original Assignee
Trisport Limited
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
Priority claimed from PCT/GB1991/002315 external-priority patent/WO1992011781A1/en
Priority claimed from GB929212274A external-priority patent/GB9212274D0/en
Application filed by Trisport Limited filed Critical Trisport Limited
Priority to DE69321722T priority Critical patent/DE69321722T2/en
Priority to PCT/GB1993/001142 priority patent/WO1993025108A2/en
Priority to EP93913249A priority patent/EP0644731B1/en
Priority to JP50123494A priority patent/JP3311352B2/en
Publication of WO1993012686A2 publication Critical patent/WO1993012686A2/en
Publication of WO1993012686A3 publication Critical patent/WO1993012686A3/en
Priority to US08/563,869 priority patent/US5572807A/en

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
    • A43C15/162—Studs or cleats for football or like boots characterised by the shape
    • A43C15/164—Studs or cleats for football or like boots characterised by the shape having a circular cross section
    • A43C15/165—Studs or cleats for football or like boots characterised by the shape having a circular cross section pointed or conical, e.g. calks, spikes, pins
    • 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

Definitions

  • Shoes and other articles of footwear for use in various games, sports and other athletic activities are often provided with studs in their soles to reduce the tendency to slip on the ground.
  • the stud there described comprises a hardened steel pin member secured within a moulded plastics body.
  • the pin extends right through the body and a head of the pin forms a ground-engaging nose projecting beyond a wide sole-engaging flange of the body.
  • Adjacent to the flange the nose is of greater diameter than a bore in the body through which a stem of the pin extends, and the tail end of the stem is upset to secure the assembly by clamping the body against the enlarged nose of the pin.
  • the body is formed externally with a screw thread which enables the stud to be secured in a complementary threaded socket provided in a shoe sole. By unscrewing, the stud is replaceable should it become damaged or unduly worn.
  • the invention provides, in one of its aspects, a stud for an article of footwear comprising stud-mounting means enabling the stud to ' be secured in the underside of the article, a downwardly-projecting ground-engaging nose of a hard wear-resistant first material, and a stem of a strong but less brittle second material which extends from the nose upwardly through the stud-mounting means, the nose being secured to a lower end portion of the stem and an upper end portion of the stem having been deformed to retain the stud-mounting means between the upper end portion and upwardly-facing portions of the nose arranged about the stem.
  • the hard, wear-resistant, material of which the nose is formed may be tungsten carbide or any other such suitable material of particularly hard-wearing character, and the stem may be of steel.
  • the lower end portion of the stem is frusto-conical in form and is received into a correspondingly-shaped recess in the nose, the two being secured together by brazing.
  • the upwardly-facing portions of the nose about the recess may form a continuous annular abutment surface about the stem.
  • the stud may be of a replaceable or of a permanent kind.
  • the stud-mounting means may comprise an externally screw-threaded portion enabling the stud to be secured in a threaded socket in the underside of the article.
  • the stud-mounting means can comprise a body of suitable form adapted to be moulded-in in formation of a moulded portion of the article.
  • the invention provides a method of forming a stud, for securement in an article of footwear, which comprises a ground-engaging nose of a hard wear-resistant first material projecting downwardly from stud-mounting means adapted to enable the stud to be secured in the underside of the article, the method comprising securing the nose to a lower end portion of a stem of a strong but less brittle second material, passing an upper end portion of the stem through the stud-mounting means, and deforming the upper end portion of the stem to retain the stud-mounting means between the upper end portion and upwardly-facing portions of the nose arranged about the stem.
  • Figure 2 is a similar view of a stud for permanent retention.
  • Figure 1 shows a golf shoe stud which comprises an externally screw-threaded upper portion 10 enabling it to be secured in a complementary threaded socket housed within a golf shoe sole. It comprises also a disc-like intermediate portion 12 forming an encircling flange for engagement with an outer surface of the sole around the socket. Finally, it comprises a lower portion 1/4 in the form of a downwardly-projecting ground-engaging nose extending downwards from the intermediate portion.
  • the upper and intermediate portions form stud-mounting means which is in part provided by a unitary plastics moulding which forms an externally screw-threaded spigot 16 which at a lower end adjoins a relatively large diameter portion forming a flange body 18.
  • a pin member extends right through a central bore 19 of the moulding and comprises an enlarged head 20 at its lower end.
  • the head abuts the underside of the intermediate portion and forms the nose of the stud.
  • a hardened steel stem 22 of the pin which extends upwards from the head through the moulding, has a hollowed upper end portion 23 rolled outwards in a riveting operation which secures the moulding against the pin head.
  • the pin comprises a body of tungsten carbide forming the nose.
  • the nose is secured, adjacent to the intermediate portion 12, by brazing to a partially frusto-conical lower end " portion 24 of the steel stem 22 which forms a supporting portion in the form of a stump projecting downwards below the intermediate portion; the nose has an upwardly-facing recess 26 of corresponding shape in which the stump seats.
  • the whole of the supporting portion is accommodated within the nose, an upwardly-facing continuous annular end surface 28 of the nose, around the stem 22, abutting the underside of the intermediate portion.
  • the tungsten carbide body provides a nose of a hard, wear-resistant, material for ground engagement.
  • the steel stem which in use is not subjected to wear in the same way, is of a strong but less brittle material for lateral support and also is suitable for upsetting at its upper end in riveting the stud assembly together.
  • the intermediate portion 12 comprises also a thin metal covering element 30 forming a shield to protect the underside and edges of the plastics flange body 18.
  • the shield which is of a suitable steel, is formed with a central square aperture 32 which is located on a square boss 34 projecting downwards from the moulding around its central bore; the axial boss length is similar to, but not greater than, the thickness of the shield, and the shield so becomes clamped to the underside of the moulding by the end surface 28 of the nose in assembly of the stud.
  • each aperture 38 there are four circular recesses 36 moulded into the underside of the flange body 18, uniformly disposed abut the stud axis, and four apertures 38 are correspondingly formed in the shield 30.
  • the shield is formed with a shallow upturned lip 40 which is located in an opposing one of the recesses 36.
  • the four recesses 36 and corresponding apertures 38 provide keying formations enabling engagement by corresponding formations on a suitable tool for the transmission of torque to the stud for insertion and removal of the stud.
  • FIG. 2 shows a golf shoe stud of a non-replaceable kind.
  • This stud is of essentially the same construction as the first embodiment except that instead of the screw-threaded moulding forming the spigot 16 and flange 18 (and omitting also the metal flange-covering element 30) it comprises a moulded plastics stud-securing body 50 of a kind adapted to be moulded-in, in formation of a moulded portion of a footwear article, for permanent retention in the underside of the article.
  • Parts of the stud corresponding to those of the first embodiment are shown referenced in Figure 2 with the same reference numerals as hereinbefore used to described the equivalent parts of the first embodiment shown in Figure 1.

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

Abstract

A stud for a golf shoe comprises a nose (20) of tungsten carbide which is brazed to a lower end portion (24) of a steel stem (22) passing upwardly through a plastics stud-mounting body (16, 18). The lower end portion (24) of the stem is secured within a recess (26) in the nose, the two being of complementary frusto-conical forms. An out-turned upper end portion of the stem retains the plastics body (16, 18) between itself and an upwardly-facing annular surface (28) of the nose.

Description

STUDS FOR FOOTWEAR
Shoes and other articles of footwear for use in various games, sports and other athletic activities are often provided with studs in their soles to reduce the tendency to slip on the ground.
Just one example of many such studs is described in GB-A-2 028 102. The stud there described comprises a hardened steel pin member secured within a moulded plastics body. The pin extends right through the body and a head of the pin forms a ground-engaging nose projecting beyond a wide sole-engaging flange of the body. Adjacent to the flange the nose is of greater diameter than a bore in the body through which a stem of the pin extends, and the tail end of the stem is upset to secure the assembly by clamping the body against the enlarged nose of the pin. The body is formed externally with a screw thread which enables the stud to be secured in a complementary threaded socket provided in a shoe sole. By unscrewing, the stud is replaceable should it become damaged or unduly worn.
To militate against wear of the nose of such studs, it is known to introduce hard inserts into the nose. For example, as described in GB-A-1 277 694, US-A-3 766 670 and WO 92/02156 a ball of a hard wear-resistant material such as tungsten carbide may be secured at the tip of the stud nose, it being the tip that in practice usually suffers the greatest wear. A known alternative method of achieving a similar result is described in US-A-3 600 831 and US-A-3 552 043, a cylindrical stump of hard material there being housed within a tubular end portion of a steel pin which otherwise forms the stud nose. Both of these methods of increasing the wear-resistance of the stud nose can be partially satisfactory but undue wearing of the remainder of the nose may still occur and ultimately the hard tip insert can come loose and be lost.
It is an object of the present invention to provide improvements in the construction of hard-wearing shoe studs.
The invention provides, in one of its aspects, a stud for an article of footwear comprising stud-mounting means enabling the stud to' be secured in the underside of the article, a downwardly-projecting ground-engaging nose of a hard wear-resistant first material, and a stem of a strong but less brittle second material which extends from the nose upwardly through the stud-mounting means, the nose being secured to a lower end portion of the stem and an upper end portion of the stem having been deformed to retain the stud-mounting means between the upper end portion and upwardly-facing portions of the nose arranged about the stem.
It is to be understood that the terms "upper" and "lower" are used herein in relation to a stud in its normal orientation for use, in which the nose of the stud would project downwardly from the underside of the shoe sole.
The hard, wear-resistant, material of which the nose is formed may be tungsten carbide or any other such suitable material of particularly hard-wearing character, and the stem may be of steel. In a preferred construction the lower end portion of the stem is frusto-conical in form and is received into a correspondingly-shaped recess in the nose, the two being secured together by brazing. The upwardly-facing portions of the nose about the recess may form a continuous annular abutment surface about the stem.
The stud may be of a replaceable or of a permanent kind. For the former, the stud-mounting means may comprise an externally screw-threaded portion enabling the stud to be secured in a threaded socket in the underside of the article. For a permanent securement, the stud-mounting means can comprise a body of suitable form adapted to be moulded-in in formation of a moulded portion of the article.
In another of its aspects the invention provides a method of forming a stud, for securement in an article of footwear, which comprises a ground-engaging nose of a hard wear-resistant first material projecting downwardly from stud-mounting means adapted to enable the stud to be secured in the underside of the article, the method comprising securing the nose to a lower end portion of a stem of a strong but less brittle second material, passing an upper end portion of the stem through the stud-mounting means, and deforming the upper end portion of the stem to retain the stud-mounting means between the upper end portion and upwardly-facing portions of the nose arranged about the stem.
There now follows a description, to be read with reference to the accompanying drawings of two golf shoe studs which illustrate the invention by way of example.
In the accompanying drawings:- Figure 1 is a longitudinal cross-section through a replaceable stud; and
Figure 2 is a similar view of a stud for permanent retention.
Figure 1 shows a golf shoe stud which comprises an externally screw-threaded upper portion 10 enabling it to be secured in a complementary threaded socket housed within a golf shoe sole. It comprises also a disc-like intermediate portion 12 forming an encircling flange for engagement with an outer surface of the sole around the socket. Finally, it comprises a lower portion 1/4 in the form of a downwardly-projecting ground-engaging nose extending downwards from the intermediate portion. The upper and intermediate portions form stud-mounting means which is in part provided by a unitary plastics moulding which forms an externally screw-threaded spigot 16 which at a lower end adjoins a relatively large diameter portion forming a flange body 18. A pin member extends right through a central bore 19 of the moulding and comprises an enlarged head 20 at its lower end. The head abuts the underside of the intermediate portion and forms the nose of the stud. A hardened steel stem 22 of the pin, which extends upwards from the head through the moulding, has a hollowed upper end portion 23 rolled outwards in a riveting operation which secures the moulding against the pin head.
The pin comprises a body of tungsten carbide forming the nose. The nose is secured, adjacent to the intermediate portion 12, by brazing to a partially frusto-conical lower end" portion 24 of the steel stem 22 which forms a supporting portion in the form of a stump projecting downwards below the intermediate portion; the nose has an upwardly-facing recess 26 of corresponding shape in which the stump seats. The whole of the supporting portion is accommodated within the nose, an upwardly-facing continuous annular end surface 28 of the nose, around the stem 22, abutting the underside of the intermediate portion.
The tungsten carbide body provides a nose of a hard, wear-resistant, material for ground engagement. The steel stem, which in use is not subjected to wear in the same way, is of a strong but less brittle material for lateral support and also is suitable for upsetting at its upper end in riveting the stud assembly together.
The intermediate portion 12 comprises also a thin metal covering element 30 forming a shield to protect the underside and edges of the plastics flange body 18. The shield, which is of a suitable steel, is formed with a central square aperture 32 which is located on a square boss 34 projecting downwards from the moulding around its central bore; the axial boss length is similar to, but not greater than, the thickness of the shield, and the shield so becomes clamped to the underside of the moulding by the end surface 28 of the nose in assembly of the stud.
There are four circular recesses 36 moulded into the underside of the flange body 18, uniformly disposed abut the stud axis, and four apertures 38 are correspondingly formed in the shield 30. Around each aperture 38 the shield is formed with a shallow upturned lip 40 which is located in an opposing one of the recesses 36. The engagement of the lips 40 in the recesses 36, and the location of the shield on the square boss 34, together ensure that the shield is interlocked with the moulding against relative rotation. The four recesses 36 and corresponding apertures 38 provide keying formations enabling engagement by corresponding formations on a suitable tool for the transmission of torque to the stud for insertion and removal of the stud.
A second embodiment of the invention is illustrated by Figure 2 which shows a golf shoe stud of a non-replaceable kind. This stud is of essentially the same construction as the first embodiment except that instead of the screw-threaded moulding forming the spigot 16 and flange 18 (and omitting also the metal flange-covering element 30) it comprises a moulded plastics stud-securing body 50 of a kind adapted to be moulded-in, in formation of a moulded portion of a footwear article, for permanent retention in the underside of the article. Parts of the stud corresponding to those of the first embodiment are shown referenced in Figure 2 with the same reference numerals as hereinbefore used to described the equivalent parts of the first embodiment shown in Figure 1.

Claims

1. A stud for an article of footwear comprising stud-mounting means enabling the stud to be secured in the underside of the article, a downwardly-projecting ground-engaging nose of a hard wear-resistant first material, and a stem of a strong but less brittle second material which extends from the nose upwardly through the stud-mounting means, the nose being secured to a lower end portion of the stem, and an upper end portion of the stem having been deformed to retain the stud-mounting means between the upper end portion and upwardly-facing portions of the nose arranged about the stem.
2. A stud according to claim 1 in which the upwardly-facing portions of the nose form a continuous annular abutment surface about the stem.
3. A stud according to either of claims 1 and 2 in which the lower end portion of the stem is secured within an upwardly-facing recess in the nose.
4. A stud according to claim 3 in which the lower end portion of the stem and the recess in the nose are of corresponding frusto-conical form.
5. A stud according to any one of the preceding claims in which the stem is of steel.
6. A stud according to claim 5 in which the nose is of tungsten carbide.
7. A stud according to claim 6 in which the nose has been secured to the steel stem by brazing.
8. A stud according to any one of the preceding claims in which the stud-mounting means comprises an externally screw-threaded portion enabling the stud to be secured in a threaded socket in the underside of the article.
9. A stud according to claim 8 in which the stud-mounting means comprises a flange-forming portion which encircles the screw-threaded portion and the nose for abutment with outer surfaces of the underside of the article.
10. A stud according to any one of the preceding claims in which the stud-mounting means comprises a stud-securing body adapted to be moulded-in, in formation of a moulded portion of the article, for permanent retention in the article.
11. A method of forming a stud, for securement in an article of footwear, which comprises a ground-engaging nose of a hard wear-resistant first material projecting downwardly from stud-mounting means adapted to enable the stud to be secured in the underside of the article, the method comprising securing the nose to a lower end portion of a stem of a strong but less brittle second material, passing an upper end portion of the stem through the stud-mounting means, and deforming the upper end portion of the stem to retain the stud-mounting means between the upper end portion and upwardly-facing portions of the nose arranged about the stem.
12. A method according to claim 11 in which the lower end portion of the stem is secured within a recess in the nose.
13. A method according to either of claims 11 and 12 in which the stem is of steel.
14. A method according to claim 13 in which the nose is of tungsten carbide.
15. A method according to claim 14 in which the nose is secured to the stem by brazing.
16. A stud for an article of footwear substantially as hereinbefore described with reference to Figure 1 or Figure 2.
17. A method of forming a stud substantially as hereinbefore described with reference either to Figure 1 or Figure 2.
PCT/GB1992/002391 1991-12-23 1992-12-23 Studs for footwear WO1993012686A2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE69321722T DE69321722T2 (en) 1992-06-10 1993-05-28 THORNS FOR FOOTWEAR
PCT/GB1993/001142 WO1993025108A2 (en) 1992-06-10 1993-05-28 Studs for footwear
EP93913249A EP0644731B1 (en) 1992-06-10 1993-05-28 Studs for footwear
JP50123494A JP3311352B2 (en) 1992-06-10 1993-05-28 Footwear studs
US08/563,869 US5572807A (en) 1992-06-10 1995-11-29 Composite, wear-resistant stud for sport shoes

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
PCT/GB1991/002315 WO1992011781A1 (en) 1991-01-04 1991-12-23 Studs for footwear
GBPCT/GB91/02315 1991-12-23
GB9212274.6 1992-06-10
GB929212274A GB9212274D0 (en) 1992-06-10 1992-06-10 Studs for footwear

Publications (2)

Publication Number Publication Date
WO1993012686A2 true WO1993012686A2 (en) 1993-07-08
WO1993012686A3 WO1993012686A3 (en) 1994-02-03

Family

ID=26298387

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1992/002391 WO1993012686A2 (en) 1991-12-23 1992-12-23 Studs for footwear

Country Status (1)

Country Link
WO (1) WO1993012686A2 (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3552043A (en) * 1969-05-01 1971-01-05 Louis J Moffa Wear-resisting spikes for shoes
US3766670A (en) * 1971-07-26 1973-10-23 Sumitomo Electric Industries Spike for shoes and a method for manufacturing thereof
US3828364A (en) * 1973-08-29 1974-08-13 Miyata Metallic Mfg Calk for golf shoes
GB2028102A (en) * 1978-08-16 1980-03-05 Triman Ltd Studs for footwear
FR2532825A1 (en) * 1982-09-13 1984-03-16 Uhl Sportartikel Karl Sports shoe sole with studs or spokes
WO1992002156A1 (en) * 1990-08-01 1992-02-20 Macneil Engineering Company, Inc. Cleat with reinforced spike

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3552043A (en) * 1969-05-01 1971-01-05 Louis J Moffa Wear-resisting spikes for shoes
US3766670A (en) * 1971-07-26 1973-10-23 Sumitomo Electric Industries Spike for shoes and a method for manufacturing thereof
US3828364A (en) * 1973-08-29 1974-08-13 Miyata Metallic Mfg Calk for golf shoes
GB2028102A (en) * 1978-08-16 1980-03-05 Triman Ltd Studs for footwear
FR2532825A1 (en) * 1982-09-13 1984-03-16 Uhl Sportartikel Karl Sports shoe sole with studs or spokes
WO1992002156A1 (en) * 1990-08-01 1992-02-20 Macneil Engineering Company, Inc. Cleat with reinforced spike

Also Published As

Publication number Publication date
WO1993012686A3 (en) 1994-02-03

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