EP0633079A1 - Procédé et élément métallique pour former des crampons de fers à cheval - Google Patents

Procédé et élément métallique pour former des crampons de fers à cheval Download PDF

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Publication number
EP0633079A1
EP0633079A1 EP94304838A EP94304838A EP0633079A1 EP 0633079 A1 EP0633079 A1 EP 0633079A1 EP 94304838 A EP94304838 A EP 94304838A EP 94304838 A EP94304838 A EP 94304838A EP 0633079 A1 EP0633079 A1 EP 0633079A1
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EP
European Patent Office
Prior art keywords
base
lip
face
elongate
metal member
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.)
Granted
Application number
EP94304838A
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German (de)
English (en)
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EP0633079B1 (fr
Inventor
Simon Edward Dale
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Individual
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Individual
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Publication date
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Publication of EP0633079A1 publication Critical patent/EP0633079A1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K15/00—Making blacksmiths' goods
    • B21K15/02—Making blacksmiths' goods horseshoes; appurtenances therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H7/00—Making articles not provided for in the preceding groups, e.g. agricultural tools, dinner forks, knives, spoons
    • B21H7/12—Making articles not provided for in the preceding groups, e.g. agricultural tools, dinner forks, knives, spoons horse-shoes; articles of like shape, e.g. wear-resisting attachments for shoes

Definitions

  • the present invention relates to a method of forming clips on horseshoes and also to an elongate L-shaped metal member for use therewith.
  • Clips are upward projections extending from the upper surface of the horseshoe adjacent its outer edges which are conventionally fitted in recesses formed by the Farrier in the horn of the horses hoof to prevent backward movement of the shoe in use.
  • the front shoes normally have a single central clip whereas the rear shoes usually have two clips symmetrically disposed on each side of the fore and aft plane of symmetry of the shoe.
  • the preparation of the clips requires the use of a hot forge.
  • the operation involves heating the shoe to red heat and then punching an indentation in the undersurface of the shoe in the appropriate outer edge portion thereof to raise an appropriate volume of metal for the clip at the top surface. This is then beaten out on a anvil to form the clip.
  • the forming of the clips on the shoe therefore represents a significant proportion of the Blacksmiths working time.
  • an elongate L-shaped metal member of constant cross section for forming into a horseshoe said member comprising a base with an upstanding lip along one edge thereof, the base being thicker and wider than the lip and said lip having an inner face, an outer face and an upper face, one of said inner or outer faces providing a first face which is normal to the base and the other of said faces being inclined relative to the first face whereby the width of the lip where it joins the base is narrower than the width of the upper face of the lip.
  • the outer face of the lip is normal to the base and the inner face is inclined relative thereto.
  • the inner face of the lip is normal to the base and the outer face is inclined relative thereto.
  • the outer inclined face of the lip meets the front face of the base at a location slightly above the upper face of the base. The inclined face on the lip is important because it provides the necessary additional amount of metal which is needed to be cold rolled to provide the final pointed clip configuration.
  • the bottom surface of the base can be flat, concave or convex.
  • the elongate metal member is made of a rolled ferrous metal material but it can also be made from an extruded metal alloy material such as aluminium.
  • a method of cold forming a clip on a metal horseshoe comprising the steps of cold cutting material away from an upstanding lip on an elongate L-shaped metal member of constant cross section to leave an amount of metal which provides an initial clip configuration and subsequently cold rolling said initial clip configuration to work it into its final clip configuration ready for fitting to a horses hoof.
  • the cutting step is carried out using a power driven cropping tool and the rolling step is carried out using a hydraulic press.
  • Figure 1 an elongate L-shaped metal member of constant cross section which has been hot rolled at a rolling mill. It is however possible to form the metal member from an alloy material such as aluminium using an extrusion process.
  • the elongate metal member comprises a base 1 with an upstanding lip 8 at its front edge.
  • the base 1 has an upper surface 2 and a lower surface 3 and the lip comprises a rear face 4 a top face 6 and a front face 5.
  • the front face 5 is normal to the bottom face 3 and the rear face 4 of the lip is inclined relative thereto whereby the width of the top surface 6 is narrower than the root of the lip where it joins the base 1.
  • the rear face 4 of the lip is normal to the upper surface 2 of the base 1 and the front face 5 of the lip is inclined relative thereto.
  • the inclined front face 5 of the lip meets a vertical portion 5A of the front face at a location 7 which is slightly above the upper face 2 of the base 1.
  • the width of the top surface 6 of the lip is greater than the root of the lip where it joins the base 1.
  • metal 9 is cut away from the lip 8 to leave a configuration as shown in chained dotted line in Figures 1A and 1B and in solid line in Figure 2A which is a front view of the elongate members in Figures 1A and 1B after the metal 9 has been removed therefrom.
  • This cutting operation is achieved using the apparatus of Figures 3-6 which will be described hereafter.
  • the straight length of elongate metal member is then heated, fullered and nail holes 12 are formed in it. It is then finally bent into the required horseshoe shape. During the heating, fullering and nail hole forming steps, the tabs 10 are still in their initial clip configuration as shown in Figures 1 and 2.
  • Figures 7 and 8 show an apparatus which comprises a rolling head 140 with an inverted U-shaped base 141, the web of which is attached to a connecting piece 142 for attachment to the ram of a hydraulic press.
  • a rolling head 140 with an inverted U-shaped base 141, the web of which is attached to a connecting piece 142 for attachment to the ram of a hydraulic press.
  • Mounted between the limbs of the U-shaped base 141 are a pair of parallel rollers 143,144 each mounted on a spindle 145 which in turn are mounted in bearings in the limbs of the U-shaped base 141.
  • the roller 143 is an active roller and roller 144 is a reaction roller which prevents lateral displacement of the rolling head 140 during the rolling operation.
  • Figure 7 illustrates the rolling head 140 at the end of its rolling stroke.
  • the apparatus also includes a bed 150 in which a reaction tool 151 is integrated with an active tool or die member 152 through a base 153, brackets 153a,153b and tie bars 154,155.
  • a shoe supporting platform 156 slopes downwardly away from the die member 152.
  • the die member 152 comprises a vertical rolling surface 157, a support surface 158 continuous with the surface 156 and a die surface 159 which interconnects the surfaces 157 and 158 and has a vertical dimension corresponding to height of the clip above the top surface of the horseshoe and which subtends an angle with the vertical corresponding to the taper of the clip.
  • the surface 159 extends downwardly obliquely towards the rolling head.
  • the surface 156 can however by horizontal.
  • a rest 160 is mounted so as to project upwardly from the surface 156 for supporting the curved inner surface of the horseshoe and consists of a wheel slidingly mounted on a spindle 161 fitted to the platform 156 so as to be replaceable by wheels of different size to suit different dimensions of horseshoe.
  • the rest could alternatively be eccentrically mounted so as to swivel towards the length between the rest and the die surface, suitable clamping bolts being provided.
  • a horseshoe which has been formed into the shape shown in Figure 2B is located upside down on the platform 156 over the rest wheel 60 so that the tab portion 10 is located over and against the die surface 159 in which position the inside curved edge of the shoe should rest against the wheel 160.
  • the ram is then engaged to bring the rolling head down during which movement the active roller 143 rolls out the metal of tab 10 to displace it against the die surface 159 and form the tapered clip 11 as illustrated in Figure 2A or 2B, the clip 11 reducing in thickness from its root adjacent the top surface 2 of the shoe where the metal may for example be 1/8th of an inch thick (3.18mm) to substantially a knife edge at its apex.
  • the clip 11 has a smooth elipsoidal configuration from the front and rear.
  • the finished clip 11 has a much higher standard of finish and can be obtained by hand forging or hot rolling.
  • the horseshoe is removed from the rolling bed at the end of the downward rolling stroke and before the return stroke. Not only does this save time but there is no risk of the formed clip 11 being distorted during the return stroke. If a slow acting mechanical press is substituted, provision should be preferably arranged for a delay cycle to intervene when the head is in the bottom most position in order to allow time for removal of the shoe.
  • the elongate metal member shown in Figures 1 and 2 has a base which is planar, it will be appreciated that the base can be formed with an indentation therein or alternatively it can be formed with a convex bottom surface or with a outwardly projecting bead thereon.
  • the cutting apparatus comprises a base 15 with a plate 16 extending upwardly therefrom and attached to the base by means of bolts 18 (only one is illustrated).
  • the plate 16 supports a pair of pneumatic cylinders 17 each of which has a threaded shaft 19 connected to its operating piston (not shown).
  • the threaded shaft 19 is connected to a workpiece clamping member 25 by means of clamping elements 20 held in position by bolts 21 (only one is illustrated)
  • the clamping member 25 has a pair of elongate slots 23 therein which receive retaining bolts 22.
  • a cutting die 27 is bolted to the base 15 and is provided with laterally extending tabs 27A (see Figure 3) the purpose of which will be described hereafter.
  • the apparatus includes a top assembly 32 having a spigot 35 projecting therefrom which is connected to the power press assembly (not shown).
  • a cutter head mounting block 30 is attached to the top assembly 32 by means of bolts 31 and a cutting tool 28 is attached to the cutter head mounting block 30 by means of bolts 29.
  • the top assembly 32 moves up and down relative to the base 15 on guide posts 40 (see Figures 3 and 5) in bushes 41.
  • the base 15 has an inclined surface 32 in the region beneath the cutter 28 for the removal of scrap metal cut from the elongate member 1 during the cutting operation to be described shortly.
  • the right hand end of the base 15 is provided with a pair of rails 45 screwed to the base by bolts 47.
  • An end stop 46 is adjustably mounted on the rails 45.
  • the base also includes a slope 48 for removal of a cut length of elongate member 1.
  • Figures 5 and 6 show a cutter mounting block 51 attached to the top structure 32 by means of bolts 52 and a cutter head 54 is attached to the mounting block 51 by means of bolts 55.
  • a work piece support surface 33 is provided on the upper front edge of the die 27 and that the front face of the clamping bar 25 has a rebate formed therein facing the cutter 28 to receive the elongate metal member 1 (not shown).
  • the elongate metal member 1 can be fed through the cutting apparatus on the support surface 33, the feed direction being indicated by the arrow A in Figure 3.
  • the power press is then activated to move the cutter 28 downwardly and cut metal 9 away from the lip 8 leaving tabs 10 in the region supported by the die parts 27A.
  • the material cut away then falls down and out of the apparatus along the slope portion 32.
  • the end cutter 54 (see Figure 5) also moves downwardly to cut the elongate metal member 1 at the reference point 38. This severed piece of metal then falls downwardly and out of the apparatus along the slope 48.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Agronomy & Crop Science (AREA)
  • Forging (AREA)
EP19940304838 1993-07-05 1994-07-01 Procédé et élément métallique pour former des crampons de fers à cheval Expired - Lifetime EP0633079B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9313856 1993-07-05
GB9313856A GB2280586B (en) 1993-07-05 1993-07-05 Method and metal member for forming clips on horseshoes

Publications (2)

Publication Number Publication Date
EP0633079A1 true EP0633079A1 (fr) 1995-01-11
EP0633079B1 EP0633079B1 (fr) 1997-03-26

Family

ID=10738310

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19940304838 Expired - Lifetime EP0633079B1 (fr) 1993-07-05 1994-07-01 Procédé et élément métallique pour former des crampons de fers à cheval

Country Status (3)

Country Link
EP (1) EP0633079B1 (fr)
DE (1) DE69402258D1 (fr)
GB (1) GB2280586B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1002886C2 (nl) * 1996-04-17 1997-10-21 Kerckhaert B V Werkwijze voor het vervaardigen van een hoefijzer voorzien van ten minste één lip en een hoefijzer vervaardigd met behulp van de werkwijze.

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2673C (de) * J. RÜSSEL in Newark, J. J. REIMER & CHR. E. MÖLLER in Hoboken Neuerungen in der Herstellung von Hufeisen
DE189242C (fr) *
GB147795A (en) * 1918-08-12 1921-09-29 William Thomas Sheperdson An improved method of manufacturing horseshoes
US1710379A (en) * 1928-02-03 1929-04-23 Roland H Boutwell Method of making horseshoes
GB2053742A (en) * 1979-07-19 1981-02-11 Dale S E Forming clips on ferrous horseshoes

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB231364A (en) * 1924-07-05 1925-04-02 George William Green Stevenson Improvements in or relating to horse shoes and the like

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2673C (de) * J. RÜSSEL in Newark, J. J. REIMER & CHR. E. MÖLLER in Hoboken Neuerungen in der Herstellung von Hufeisen
DE189242C (fr) *
GB147795A (en) * 1918-08-12 1921-09-29 William Thomas Sheperdson An improved method of manufacturing horseshoes
US1710379A (en) * 1928-02-03 1929-04-23 Roland H Boutwell Method of making horseshoes
GB2053742A (en) * 1979-07-19 1981-02-11 Dale S E Forming clips on ferrous horseshoes

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1002886C2 (nl) * 1996-04-17 1997-10-21 Kerckhaert B V Werkwijze voor het vervaardigen van een hoefijzer voorzien van ten minste één lip en een hoefijzer vervaardigd met behulp van de werkwijze.
EP0802003A1 (fr) * 1996-04-17 1997-10-22 Kerckhaert B.V. Procédé de fabrication d'un fer à cheval ayant au moins un crampon et fer à cheval ainsi fabriqué
US5924274A (en) * 1996-04-17 1999-07-20 Kerckhaert B.V. Method for manufacturing a horseshoe provided with at least one clip, and a horseshoe made thereby

Also Published As

Publication number Publication date
GB2280586B (en) 1996-11-27
GB9313856D0 (en) 1993-08-18
EP0633079B1 (fr) 1997-03-26
DE69402258D1 (de) 1997-04-30
GB2280586A (en) 1995-02-08

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