US3127816A - Feeler for key copying machine - Google Patents

Feeler for key copying machine Download PDF

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Publication number
US3127816A
US3127816A US163151A US16315161A US3127816A US 3127816 A US3127816 A US 3127816A US 163151 A US163151 A US 163151A US 16315161 A US16315161 A US 16315161A US 3127816 A US3127816 A US 3127816A
Authority
US
United States
Prior art keywords
shoe
key
profile
feeler
bearing face
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.)
Expired - Lifetime
Application number
US163151A
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English (en)
Inventor
Rossetti Charles
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.)
SIMECA SA
Original Assignee
SIMECA SA
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 SIMECA SA filed Critical SIMECA SA
Application granted granted Critical
Publication of US3127816A publication Critical patent/US3127816A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q35/00—Control systems or devices for copying directly from a pattern or a master model; Devices for use in copying manually
    • B23Q35/04—Control systems or devices for copying directly from a pattern or a master model; Devices for use in copying manually using a feeler or the like travelling along the outline of the pattern, model or drawing; Feelers, patterns, or models therefor
    • B23Q35/24—Feelers; Feeler units
    • B23Q35/26—Feelers; Feeler units designed for a physical contact with a pattern or a model
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C3/00—Milling particular work; Special milling operations; Machines therefor
    • B23C3/28—Grooving workpieces
    • B23C3/35—Milling grooves in keys
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T409/00—Gear cutting, milling, or planing
    • Y10T409/30—Milling
    • Y10T409/303416—Templet, tracer, or cutter
    • Y10T409/303472—Tracer

Definitions

  • the object of the present invention is to provide a feeler which slides easily over the profile of the key to be reproduced.
  • the feeler which is the subject matter of the invention, and has an inclined bearing face intended to slide along the rising parts of the profile of a key to be reproduced, is characterized by the fact that said face is formed on a tiltably mounted shoe so that the said face can assume an inclination corresponding to the inclinations of the rising parts of the profile followed.
  • FIG. 1 is a face view thereof.
  • FIGS. 2 and 3 are sections along the line 22 and 3-3 of FIG. 1.
  • FIG. 4 is a top view along the line 4-4 of FIG. 3.
  • FIGS. 5, 6, 7, 8 and 9 are detail views on a larger scale.
  • the feeler shown forming part of a key copying machine, comprises a shoe 1 having a bearing face 2 intended to slide on rising parts of the profile of a key to be reproduced upon relative displacement of said key and the feeler.
  • the shoe 1 comprises a central part 3, having the bearing face 2, and two pivot pins 4 and 5 located on opposite sides of said central part and pivoted in a support 6 (see FIG. 4).
  • These pivot pins the cross-section of which has approximately the shape of a circular sector slightly larger than half a circle (see FIG. 5) with a radius for instance of 2 mm., are extended on the two ends of the shoe by end parts 7 having a cross-section in the form of a circular sector smaller than half a circle (see FIGS. 4 and 6).
  • the shoe 1 bears a pin 11 on which there rests the free end of an elastic blade 12, the other end of which is fastened to the support 6 at 13 (FIGS. 1 and 3).
  • the blade 12 urges the shoe to turn in the direction indicated by the arrow A in the various figures.
  • the central portion 3 of the shoe comprises a cylindrical nose 14 included between the bearing face 2 and a stop face 15 which is inclined with respect to said face 2 (FIG. 8).
  • the angle B inscribed between these two faces is 60.
  • the cylindrical surface of the nose 14, as well as a rear surface 16, also of cylindrical shape, of the central portion 3 of the shoe are both coaxial to the pivot pins 4 and 5.
  • This rear surface 16 has the same radius as the pivot pins and the support 6 has a hollow, cylindrical seat 17 which constitutes a support for the surface 16 of the shoe (FIG. 8).
  • This seat 17 extends between surfaces 18 and 19 constituting the bottoms of two grooves 20 and 21 cut in the support 6 (see FIGS. 2 and 4).
  • the feeler shown operates in the following manner:
  • the key to be copied such as that shown at 24 for instance, placed in a clamp of the machine shown schematically at 25, is caused to rest via its profile to be reproduced against the central portion 3 of the shoe 1 (FIG. 2).
  • the feeler is itself fastened on a support 26 of the machine by means of a screw 26 and the clamp 25 is brought, by machine means not shown, to move longitudinally with respect to the support 26.
  • the vertical position of the clamp is determined by the profile of the key, resting against the feeler, so that the clamp rises and descends according to the shape of the profile fol lowed upon the displacement of the key with respect to the feeler.
  • the key is pushed all the way towards the left (FIG. 2), so that its axial starting position is determined precisely by the fact that a reference face 27 provided on a shoulder of the head of the key strikes against the stop face 15 of the shoe.
  • the key resting on the shoe 1 is then moved longitudinally from left to right in FIG. 2 during the operating stroke of the machine.
  • the shoe 1 first of all follows a flat portion 23 of the profile of the key and then a first downward portion 29 of said profile.
  • the shoe 1 re mains in its angular position of rest, shown in FIGS. 8 and 9, the key resting against the cylindrical nose 14 of the shoe.
  • said face 2 In the position of rest of the shoe, said face 2 is inclined by an angle X :40 with respect to the horizontal (FIG. 8) and as a result of a slight rotation of the shoe, this face 2 assumes an inclination corresponding to that of the profile of the key.
  • FIGS. 5 and 6 show the position assumed by the shoe 1 when it cooperates with a key such as that shown, having a 45 profile.
  • FIG. 7 shows the position which it assumes when it cooperates with a key having a 55 profile, which latter inclination can be considered a maximum for ordinary keys.
  • the shoe shown can withstand a very high load without appreciable deformation. As a matter of fact, it is not only supported by its end pivot pins 4 and 5, but its central portion 3 is also supported by the seat 17 of the support 6.
  • the bearing face automatically assumes an inclination which corresponds so that of the rising portions of the profile of the key so that the contact effected between the shoe and the key remains a surface contact for any key having notches the inclination of which is between 40 and 55.
  • a cutter guide for a key duplicating machine arranged slidably to scan the profile of the bitted edge of a pattern key to be duplicated, comprising a supporting body portion having mounted thereon a tiltably supported shoe, said shoe being provided with a bearing face arranged to contact a portion of the said profile of the bitted edge of said pattern key whereby said bearing face can assume an inclination conforming to the portion of the profile of the bitted edge of said pattern key in the relative sliding movement of said bearing face of the shoe and the bitted edge of the pattern key, said bearing face of said shoe being disposed substantially medially of said shoe between pivot pins providing the tiltable mounting for said shoe in said supporting body, said medial portion having a cylindrical nose coaxial to the pivot pins and constituting the apex of the cutter guide.
  • a cutter guide in accordance with claim 1 wherein said nose is included between two faces inclined to each other, one of the two said faces being arranged to provide the bearing face for contacting the rising surface of the bitted edge of the pattern key, the other of the two said faces being arranged to provide a stop face with a portion of the pattern key.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Push-Button Switches (AREA)
  • Machine Tool Copy Controls (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
US163151A 1961-01-19 1961-12-29 Feeler for key copying machine Expired - Lifetime US3127816A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH66761A CH367033A (fr) 1961-01-19 1961-01-19 Palpeur pour machine à copier les clés

Publications (1)

Publication Number Publication Date
US3127816A true US3127816A (en) 1964-04-07

Family

ID=4192321

Family Applications (1)

Application Number Title Priority Date Filing Date
US163151A Expired - Lifetime US3127816A (en) 1961-01-19 1961-12-29 Feeler for key copying machine

Country Status (6)

Country Link
US (1) US3127816A (fr)
BE (1) BE612430A (fr)
CH (1) CH367033A (fr)
DE (1) DE1185454B (fr)
FR (1) FR1313420A (fr)
GB (1) GB940098A (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5271698A (en) * 1988-10-21 1993-12-21 Axxess Entry Technologies Key cutting machine with a code selectable key duplicating system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2302506A (en) * 1941-03-11 1942-11-17 James H Richards Duplicating attachment for milling machines
US2484553A (en) * 1944-10-02 1949-10-11 Gen Motors Corp Duplicating machine
DE1009887B (de) * 1954-11-26 1957-06-06 Bbc Brown Boveri & Cie Einrichtung zur Entlastung des Tasters an Kopierfraesmaschinen
US2800838A (en) * 1954-06-11 1957-07-30 Harry L Johnson Tracer guide

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH334400A (fr) * 1957-03-27 1958-11-30 Simeca S A Machine à copier les clés
FR1241413A (fr) * 1958-11-27 1960-09-16 Machine à copier les clés plates

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2302506A (en) * 1941-03-11 1942-11-17 James H Richards Duplicating attachment for milling machines
US2484553A (en) * 1944-10-02 1949-10-11 Gen Motors Corp Duplicating machine
US2800838A (en) * 1954-06-11 1957-07-30 Harry L Johnson Tracer guide
DE1009887B (de) * 1954-11-26 1957-06-06 Bbc Brown Boveri & Cie Einrichtung zur Entlastung des Tasters an Kopierfraesmaschinen

Also Published As

Publication number Publication date
BE612430A (fr) 1962-05-02
DE1185454B (de) 1965-01-14
GB940098A (en) 1963-10-23
FR1313420A (fr) 1962-12-28
CH367033A (fr) 1963-01-31

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