US3091838A - Method for securing terminals - Google Patents

Method for securing terminals Download PDF

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Publication number
US3091838A
US3091838A US844100A US84410059A US3091838A US 3091838 A US3091838 A US 3091838A US 844100 A US844100 A US 844100A US 84410059 A US84410059 A US 84410059A US 3091838 A US3091838 A US 3091838A
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Prior art keywords
terminal
casing
punch
wall
aperture
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Expired - Lifetime
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US844100A
Inventor
Henry F Hild
Siegfried E Manecke
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Robertshaw Controls Co
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Robertshaw Fulton Controls Co
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Priority to US844100A priority Critical patent/US3091838A/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
    • H01R9/16—Fastening of connecting parts to base or case; Insulating connecting parts from base or case
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/20—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for assembling or disassembling contact members with insulating base, case or sleeve
    • H01R43/205—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for assembling or disassembling contact members with insulating base, case or sleeve with a panel or printed circuit board
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
    • H01R13/405—Securing in non-demountable manner, e.g. moulding, riveting
    • H01R13/415—Securing in non-demountable manner, e.g. moulding, riveting by permanent deformation of contact member
    • 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
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49117—Conductor or circuit manufacturing
    • Y10T29/49204—Contact or terminal manufacturing
    • Y10T29/49208—Contact or terminal manufacturing by assembling plural parts
    • Y10T29/49218—Contact or terminal manufacturing by assembling plural parts with deforming
    • 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
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49908—Joining by deforming
    • Y10T29/49915—Overedge assembling of seated part
    • 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
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49908—Joining by deforming
    • Y10T29/49938—Radially expanding part in cavity, aperture, or hollow body
    • Y10T29/49943—Riveting

Definitions

  • This invention relates to method for securing terminals to a casing and, more particularly, to securing flat plate male terminals to a molded plastic casing.
  • sharp-edged punch is used to overlap a portion of the body of the terminal, closely adjacent to the periphery of the aperture in the casing wall, so as to form outwardly extending flanges which secure the terminal to the wall.
  • the terminal is generally made of a malleable metal, such as brass, it is relatively soft and easily split when subjected to shearing stresses.
  • the sharp-edged punch used for peeling the terminal is not resiliently mounted and, therefore, transmits a high impact shock to the terminal when the sharpedged punch is actuated.
  • the punch has at least two edges that engage substantially oppositely disposed side portions of the terminal. If the punch is not properly positioned, one edge will engage the associated side portion of the terminal; while the other edge will engage the surface of the wall of the casing. In this event, the casing can easily be broken by the impact. Also, should the punch initially be positioned to unevenly engage opposite sides of the terminal, then uneven stresses will be imposed upon the terminal upon impact. These uneven stresses will be transmitted to the casing to crack the thin wall upon which the terminal is mounted.
  • An object of this invention is to secure terminals to a thin-walled casing by peening a portion of the terminal onto the surface of the casing.
  • Another object of this invention is to spin a shoulder portion of a terminal onto the upper surface of a thinwalled casing under a relatively light, uniformly distributed impact operation.
  • a further object of this invention is to fasten electrical terminals to a thin-walled casing in a rapid, inexpensive manner.
  • FIG. 1 i an elevation view, partly in section, of a terminal positioned in a thin-walled casing
  • FIG. 2 is a view similar to FIG. 1 of the terminal and punch;
  • FIG. 3 is a view of the terminal and punch in operative relationship
  • FIG. 4 is an end view, partly in section, of the terminal and punch after the spinning and peening operation.
  • FIG. 5 is a plan view of the terminal after the spinning and peening operation.
  • FIG. 1 there is shown a flat terminal post inserted and positioned in a slit aperture 12 of a thin-walled casing 14.
  • Thin-walled casing 14 can be molded from any known phenolic plastic having good structural and electrical insulation properties.
  • the terminal 10 is stamped out of a flat sheet material,
  • the terminal 10 shown in FIG. 1 has a male connector portion 16 extending upwardly of the aperture 12 in the casing 14.
  • the male connector 16 has a length and width of suitable dimensions, which dimensions are primarily determined by the female connector (not shown) that will be used in the electrical circuit.
  • a main body portion 18 of the terminal 10 is located beneath the male connector portion 16 of the terminal 10 and substantially between the sidewalls 20 of the aperture 12.
  • the main body portion 18 has a width which is slightly greater than the base width of the male connector portion 16.
  • the depth of the main body portion 18 of the terminal 10 is greater than the thickness of the wall of the casing 14.
  • a small area on each side of the main body portion 18 extends above the upper surface 22 of the wall of the casing 14, to form shoulders 24.
  • flange portions 26 Beneath the main body portion 18 of the terminal are oppositely disposed flange portions 26 which extend outwardly from the longitudinal length of the terminal 10.
  • the flange portions 26 of the terminal '10 are of sufiicient width and depth to prevent the terminal 10 from being inserted completely through the aperture 12 in the thin wall of the casing 14.
  • the terminal connector 28 can have numerous configurations, but for representative purposes is substantially rectangular.
  • a jig 30 is shown by dotted line configuration in FIG. 1.
  • the jig 30 can be of any known type and is used primarily to support and position the terminal 10 in the aperture .12 so that the upper edges 32 of the flanges 26 of the terminal abut against the lower surface 34 of the thin-walled casing 14.
  • a cylindrical punch 36 having a concentric cylindrical cavity 38 bored in the central portion of the punch 36, is depicted as being partially lowered over the male connector portion 16 of the terminal 10.
  • Edge 40 is formed at the junction of a cylindrical surface 39 of the cavity 38 and a bottom beveled surface 42 of punch 36.
  • Beveled surface 42 is of frusto-conical form being inclined at a slight angle relative to a plane normal to the axis of rotation of the punch 36. The angular inclination of the beveled surface 42 will depend upon the material from which the terminal is made.
  • Edge 40 will engage the upper edge 44 of the shoulder 24 immediately adjacent to the base width of the male connector portion 16, when there is a downward motion of punch 36. Edge 40 will cut into shoulder 24, and beveled surface 42 will peel the cut metal outwardly.
  • the cavity 38 of the punch 36 must be cylindrical in form.
  • the diameter of the cavity 38 is determined by the amount of material to to be peeled from the shoulder 24 of the terminal 110, and the width of the male connector 18 of the terminal 10.
  • the circular punch 36 is diagrammatically shown as being resiliently mounted by means of spring 46.
  • Punch 36 is mounted to a drive mechanism (not shown) that will rotate or spin punch 36 at variable speeds; and, in addition, the drive mechanism impartsv a rectilinear reciprocating motion to punch 36 so that: the punch has rapid longitudinal movement in two direc-- tions.
  • the spring 46 will limit the impact pressure of punch 36 in the downward direction to a constant value.
  • the jig 30 will force the flange 26 of the terminal into engagement with the lower surface 34 of the thinwalled casing 14 to insure proper engagement with the lower surface 34 of the wall.
  • the peeling and spinning action of the punch 36 will draw as much of the shoulder portion 24 of the main body 18 of the terminal 10 out'of the aperture 12 as is exposed to further insure a tight engagement between the upper surface 32 of the terminal flange 26 and. the lower surface '34 of the thin-walled casing 14.
  • the action of the resilient spring 46 on the punch will equalize the pressure on the bevelededge 42 to thereby insure that each peened shoulder 48 will be subjected to the same light oscillatory impact motion of the punch 36; and, in addition, to the spinning motion of the punch.
  • the male terminal .10 is shown in FIG. 4, with the punch 36 partially withdrawn from its. lowermost stroke. It is to be noted that the peened shoulder 48, due to the spinning action, overlaps the upper surface 22 of the casing 14 immediately adjacent to the aperture 12 so as to form a tab 50 which is not in alignment with the flat surface of the terminal 10.
  • the peened shoulders in FIGS. 3 and 4 have been enlarged relative to their true representations. In actuality, the uppermost portion 52 of the peened shoulder is substantially level with the upper surface 22 of the casing 14 and could be considered as being flared into the upper surface of the casing.
  • the peened shoulder 48 is spread out over'the adjacent surface of the thin-walled casing 14, and is, in eflect, twisted slightly from the flat plane of terminal 10 so that the terminal 10 cannot be withdrawn from the aperture 12.
  • a substantially circular terminal having a circular shoulder about the male connector portion of the terminal could also be subjected to the action of the punch as previously described.
  • the circular terminal will have its shoulder spread out to overlap the area immediately adjacent to a circular aperture in the thinwalled casing.
  • the method of securing a flanged terminal post in an apertured casing wall which comprises, positioning the terminal with the flange abutting against the easing wall and the terminal post projecting through the aperture and outwardly of the wall, simultaneously cutting and spinning the projecting portion of the terminal post away from the main body thereof until the spun portion engages the casing wall, and further cutting and spinning the projection portion while simultaneously peening the spun portion into evenly stressed engagement with the casing wall.
  • the method of securing a flat plate flanged terminal post in a slit aperture in a casing wall which comprises, positioning the terminal with the flange abutting against the casing wall and the terminal post projecting through the aperture and outwardly of the wall, simultaneously cutting and spinning oppositely disposed projecting portions of the terminal post until the spun portions engage said casing wall, to overlap the longitudinal ends of the slit aperture, and further cutting and spinning the projecting portions while simultaneously peening the spun portions of the terminal post into evenly stressed engagement with the casing wall closely adjacent to the longitudinal ends and sides of the slit aperture.
  • the method of securing a flat plate flanged terminal post in a slit aperture in a casing wall which comprises, positioning the terminal with the flange abutting against the casing wall and the terminal post projecting through the aperture and outwardly of the wall, simultaneously cutting and spinning oppositely disposed shoulder portion of the terminal post until the spun portions curl toward and engage the casing wall, to overlap the longitudinal ends of the slit aperture, and further cutting and spinning the projecting portions while simultaneously peening the spun and curled portions of the terminal post into evenly stressed engagement with the casing wall.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Connector Housings Or Holding Contact Members (AREA)

Description

June 4, 1963 H. F. HILD ETAL 3,091,838
METI-IOD FOR SECURING TERMINALS Filed Oct. 2, 1959 2 Sheets-Sheet 1 34 32 20 a 5 7 30-; v I i l I m O l I o: l N L June 4, 1963 H. F. HILD ETAL METHOD FOR SECURING TERMINALS 2 Sheets-Sheet 2 Filed 000- 2, 1959 United States Patent M 3,091,838 METHQD FOR SECURING TERMINALS Henry F. Hild and Siegfried E. Manecke, Indiana, Pa., as-
signors to Robertshaw-Fulton Controls Company, Richmond, Va., a corporation of Delaware Filed Oct. 2, 1959, Ser. No. 844,100 4 Claims. (Cl. 29-15555) This invention relates to method for securing terminals to a casing and, more particularly, to securing flat plate male terminals to a molded plastic casing.
It has been the practice to secure a flanged electrical terminal to a relatively thin-walled casing by overlapping portions of the terminal so as to engage one surface of a wall. Generally, this practice of securing a terminal to a casing has been referred to as staking.
To secure the flanged terminal to an aperture in the casing, 21 sharp-edged punch is used to overlap a portion of the body of the terminal, closely adjacent to the periphery of the aperture in the casing wall, so as to form outwardly extending flanges which secure the terminal to the wall. However, as the terminal is generally made of a malleable metal, such as brass, it is relatively soft and easily split when subjected to shearing stresses. In addition, the sharp-edged punch used for peeling the terminal is not resiliently mounted and, therefore, transmits a high impact shock to the terminal when the sharpedged punch is actuated.
Another difliculty in staking terminals to a thin-walled casing is the extreme accuracy with which the sharpedged punch must be positioned prior to actuation. Generally, the punch has at least two edges that engage substantially oppositely disposed side portions of the terminal. If the punch is not properly positioned, one edge will engage the associated side portion of the terminal; while the other edge will engage the surface of the wall of the casing. In this event, the casing can easily be broken by the impact. Also, should the punch initially be positioned to unevenly engage opposite sides of the terminal, then uneven stresses will be imposed upon the terminal upon impact. These uneven stresses will be transmitted to the casing to crack the thin wall upon which the terminal is mounted.
An object of this invention is to secure terminals to a thin-walled casing by peening a portion of the terminal onto the surface of the casing.
Another object of this invention is to spin a shoulder portion of a terminal onto the upper surface of a thinwalled casing under a relatively light, uniformly distributed impact operation.
A further object of this invention is to fasten electrical terminals to a thin-walled casing in a rapid, inexpensive manner.
Other objects and advantages will be apparent from the following description of the invention taken in connection with the accompanying drawings wherein:
FIG. 1 i an elevation view, partly in section, of a terminal positioned in a thin-walled casing;
FIG. 2 is a view similar to FIG. 1 of the terminal and punch;
FIG. 3 is a view of the terminal and punch in operative relationship;
FIG. 4 is an end view, partly in section, of the terminal and punch after the spinning and peening operation; and
FIG. 5 is a plan view of the terminal after the spinning and peening operation.
Referring more particularly to FIG. 1, there is shown a flat terminal post inserted and positioned in a slit aperture 12 of a thin-walled casing 14. Thin-walled casing 14 can be molded from any known phenolic plastic having good structural and electrical insulation properties. The terminal 10 is stamped out of a flat sheet material,
3,091,838 Patented June 4, 1963 such as brass, and may have various configurations, one of which is shown in FIG. 1. The terminal 10, shown in FIG. 1, has a male connector portion 16 extending upwardly of the aperture 12 in the casing 14. The male connector 16 has a length and width of suitable dimensions, which dimensions are primarily determined by the female connector (not shown) that will be used in the electrical circuit.
A main body portion 18 of the terminal 10 is located beneath the male connector portion 16 of the terminal 10 and substantially between the sidewalls 20 of the aperture 12. The main body portion 18 has a width which is slightly greater than the base width of the male connector portion 16. The depth of the main body portion 18 of the terminal 10 is greater than the thickness of the wall of the casing 14. A small area on each side of the main body portion 18 extends above the upper surface 22 of the wall of the casing 14, to form shoulders 24.
Beneath the main body portion 18 of the terminal are oppositely disposed flange portions 26 which extend outwardly from the longitudinal length of the terminal 10. The flange portions 26 of the terminal '10 are of sufiicient width and depth to prevent the terminal 10 from being inserted completely through the aperture 12 in the thin wall of the casing 14.
Beneath the main body portion 18 and the flanged portions 26 of the terminal '10, there is a downwardly extending projection. This projection of the terminal 10 is the terminal connector 28 to which electrical conductors (not shown) can be secured by numerous means, one of which is soldering. The terminal connector 28 can have numerous configurations, but for representative purposes is substantially rectangular.
A jig 30 is shown by dotted line configuration in FIG. 1. The jig 30 can be of any known type and is used primarily to support and position the terminal 10 in the aperture .12 so that the upper edges 32 of the flanges 26 of the terminal abut against the lower surface 34 of the thin-walled casing 14.
As shown in FIG. 2, a cylindrical punch 36, having a concentric cylindrical cavity 38 bored in the central portion of the punch 36, is depicted as being partially lowered over the male connector portion 16 of the terminal 10.
Edge 40 is formed at the junction of a cylindrical surface 39 of the cavity 38 and a bottom beveled surface 42 of punch 36. Beveled surface 42 is of frusto-conical form being inclined at a slight angle relative to a plane normal to the axis of rotation of the punch 36. The angular inclination of the beveled surface 42 will depend upon the material from which the terminal is made. Edge 40 will engage the upper edge 44 of the shoulder 24 immediately adjacent to the base width of the male connector portion 16, when there is a downward motion of punch 36. Edge 40 will cut into shoulder 24, and beveled surface 42 will peel the cut metal outwardly.
It will also be apparent that the cavity 38 of the punch 36 must be cylindrical in form. The diameter of the cavity 38 is determined by the amount of material to to be peeled from the shoulder 24 of the terminal 110, and the width of the male connector 18 of the terminal 10.
In FIG. 2, the circular punch 36 is diagrammatically shown as being resiliently mounted by means of spring 46. Punch 36 is mounted to a drive mechanism (not shown) that will rotate or spin punch 36 at variable speeds; and, in addition, the drive mechanism impartsv a rectilinear reciprocating motion to punch 36 so that: the punch has rapid longitudinal movement in two direc-- tions. The spring 46 will limit the impact pressure of punch 36 in the downward direction to a constant value..
As shown in FIG. 3, a quick, rapid, light impact blow of punch 36 in the downward direction combined with the spinning action of punch 36 will evenly peel and peen the shoulder portion 24 of the main body 18 of the terminal .10 away from the male connector portion 16. The beveled edge 42 of the punch 36 will curl the peeled shoulder portion 24over so as to form an upper flange 48 to the main body 24 of the terminal 10. It is to be noted that the curled and peened shoulder 24 will form a flange 48 on the upper surface 22 of the wail of the casing 14.
The jig 30 will force the flange 26 of the terminal into engagement with the lower surface 34 of the thinwalled casing 14 to insure proper engagement with the lower surface 34 of the wall. In addition, the peeling and spinning action of the punch 36 will draw as much of the shoulder portion 24 of the main body 18 of the terminal 10 out'of the aperture 12 as is exposed to further insure a tight engagement between the upper surface 32 of the terminal flange 26 and. the lower surface '34 of the thin-walled casing 14. The action of the resilient spring 46 on the punch will equalize the pressure on the bevelededge 42 to thereby insure that each peened shoulder 48 will be subjected to the same light oscillatory impact motion of the punch 36; and, in addition, to the spinning motion of the punch.
The male terminal .10 is shown in FIG. 4, with the punch 36 partially withdrawn from its. lowermost stroke. It is to be noted that the peened shoulder 48, due to the spinning action, overlaps the upper surface 22 of the casing 14 immediately adjacent to the aperture 12 so as to form a tab 50 which is not in alignment with the flat surface of the terminal 10. For purposes of representation, the peened shoulders in FIGS. 3 and 4 have been enlarged relative to their true representations. In actuality, the uppermost portion 52 of the peened shoulder is substantially level with the upper surface 22 of the casing 14 and could be considered as being flared into the upper surface of the casing.
As shown in FIG. 5, the peened shoulder 48 is spread out over'the adjacent surface of the thin-walled casing 14, and is, in eflect, twisted slightly from the flat plane of terminal 10 so that the terminal 10 cannot be withdrawn from the aperture 12.
Although not shown in the drawings, it will readily be apparent that a substantially circular terminal having a circular shoulder about the male connector portion of the terminal could also be subjected to the action of the punch as previously described. The circular terminal will have its shoulder spread out to overlap the area immediately adjacent to a circular aperture in the thinwalled casing.
In addition, it is to be realized that numerous terminals can be mounted in a single jig, so that each terminal is inserted through an appropriate aperture in the casing. In this manner, several punches can be mounted on one drive mechanism so that the numerous terminals can be fastened to the casing in one operation.
While only one embodiment of the invention has been shown and described herein, it will be apparent that numerous modifications and changes can be made without departing from the scope of the invention as defined in,
the appended claims.
We claim:
1. The method of securing a flanged terminal post in an apertured casing wall which comprises, positioning the terminal with the flange abutting against the easing wall and the terminal post projecting through the aperture and outwardly of the wall, simultaneously cutting and spinning the projecting portion of the terminal post away from the main body thereof until the spun portion engages the casing wall, and further cutting and spinning the projection portion while simultaneously peening the spun portion into evenly stressed engagement with the casing wall.
2. The method of securing a flanged terminal post in an a ertured casing wall which comprises, positioning the terminal with the flange abutting against the casing wall'and the terminal post projecting through the aperture and outwardly of the wall, simultaneously cutting and spinning the projecting portion of the terminal post until the spun portion curls toward and engages the casing wall and further cutting and spinning the projecting portion while simultaneously peening the spun and curled portion of the terminal post into evenly stressed engagement with the casing wall. 7
3. The method of securing a flat plate flanged terminal post in a slit aperture in a casing wall which comprises, positioning the terminal with the flange abutting against the casing wall and the terminal post projecting through the aperture and outwardly of the wall, simultaneously cutting and spinning oppositely disposed projecting portions of the terminal post until the spun portions engage said casing wall, to overlap the longitudinal ends of the slit aperture, and further cutting and spinning the projecting portions while simultaneously peening the spun portions of the terminal post into evenly stressed engagement with the casing wall closely adjacent to the longitudinal ends and sides of the slit aperture.
4. The method of securing a flat plate flanged terminal post in a slit aperture in a casing wall which comprises, positioning the terminal with the flange abutting against the casing wall and the terminal post projecting through the aperture and outwardly of the wall, simultaneously cutting and spinning oppositely disposed shoulder portion of the terminal post until the spun portions curl toward and engage the casing wall, to overlap the longitudinal ends of the slit aperture, and further cutting and spinning the projecting portions while simultaneously peening the spun and curled portions of the terminal post into evenly stressed engagement with the casing wall.
References Cited in the file of this patent UNITED STATES PATENTS a ....i.. .h

Claims (1)

1. THE METHOD OF SECURING A FLANGED TERMINAL POST IN AN APERTURED CASING WALL WHICH COMPRISES, POSITIONING THE TERMINAL WITH THE FLANGE ABUTTING AGAINST THE CASING WALL AND THE TERMINAL POST PROJECTING THROUGH THE APERTURE AND OUTWARDLY OF THE WALL, SIMULTANEOUSLY CUTTING AND SPINNING THE PROJECTING PORTION OF THE TERMINAL POST AWAY FROM THE MAIN BODY THEREOF UNTIL THE SPUN PORTION ENGAGES THE CASING WALL, AND FURTHER CUTTING AND SPINNING THE PROJECTION PORTION WHILE SIMULTANEOUSLY PEENING THE SPUN PORTION INTO EVENLY STRESSED ENGAGEMENT WITH THE CASING WALL.
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Cited By (12)

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US3212176A (en) * 1960-11-03 1965-10-19 Sylvania Electric Prod Apparatus for staking and forming tabs
US3275974A (en) * 1964-04-06 1966-09-27 Amp Inc Electrical stirrup connector
US3330027A (en) * 1962-12-27 1967-07-11 Gen Electric Method for making a laminated shunt for electrical measuring instruments
US3382566A (en) * 1963-07-02 1968-05-14 Stewart Warner Corp Chair construction
US3422395A (en) * 1966-10-17 1969-01-14 Ark Les Switch Corp Embossed male tab for use with quick connect terminals
US3436803A (en) * 1966-02-07 1969-04-08 Stanley J Sarnoff Uniting parts by the use of vibrational and positive material deforming forces and article made thereby
US3704441A (en) * 1970-08-03 1972-11-28 Amp Inc Panel mounted electrical terminal
US3984913A (en) * 1974-02-07 1976-10-12 Aktiebolaget Electrolux Method of constructing an electrical fitting through a passage in a non-conductive wall
US4069571A (en) * 1976-05-26 1978-01-24 General Motors Corporation Wheel cylinder piston having a flared boss end and a method of flaring a boss end
US4411061A (en) * 1981-06-26 1983-10-25 Emerson Electric Co. Method of making a thermal switch having a lead interlocked thereto by a skived part of the lead
DE4215600A1 (en) * 1991-05-13 1992-11-19 Alps Electric Co Ltd Structure and caulking jig
US6288469B1 (en) * 1997-07-02 2001-09-11 Mitsuba Corporation Fixing device and method for a brush holder

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US1234395A (en) * 1917-01-18 1917-07-24 Champion Ignition Co Method of forming spark-plugs.
DE625654C (en) * 1933-09-30 1936-02-13 Geis G M B H Process for the non-cutting production of electrode pins with collars by means of a blade-shaped roller
US2396082A (en) * 1942-07-27 1946-03-05 Kenly C Bugg Riveting or fastening mechanism
US2404051A (en) * 1943-11-03 1946-07-16 Aro Equipment Corp Blind riveter
US2524420A (en) * 1947-09-20 1950-10-03 Earle A Blampin Spinning-in the ends of tubes
US2682849A (en) * 1952-02-12 1954-07-06 Gen Motors Corp Forming tool for reducing stock
US2692422A (en) * 1948-03-10 1954-10-26 Aircraft Marine Prod Inc Method of applying connectors
US2779998A (en) * 1952-01-30 1957-02-05 Lockheed Aircraft Corp Method of forming a mechanical and electrical connection
US2782392A (en) * 1954-12-29 1957-02-19 Int Register Co Electrical terminal post having means to secure it to a panel
US2802257A (en) * 1949-02-01 1957-08-13 Amp Inc Method of forming an electrical connection
US2914745A (en) * 1957-12-06 1959-11-24 Malco Mfg Co Terminal lug

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US1234395A (en) * 1917-01-18 1917-07-24 Champion Ignition Co Method of forming spark-plugs.
DE625654C (en) * 1933-09-30 1936-02-13 Geis G M B H Process for the non-cutting production of electrode pins with collars by means of a blade-shaped roller
US2396082A (en) * 1942-07-27 1946-03-05 Kenly C Bugg Riveting or fastening mechanism
US2404051A (en) * 1943-11-03 1946-07-16 Aro Equipment Corp Blind riveter
US2524420A (en) * 1947-09-20 1950-10-03 Earle A Blampin Spinning-in the ends of tubes
US2692422A (en) * 1948-03-10 1954-10-26 Aircraft Marine Prod Inc Method of applying connectors
US2802257A (en) * 1949-02-01 1957-08-13 Amp Inc Method of forming an electrical connection
US2779998A (en) * 1952-01-30 1957-02-05 Lockheed Aircraft Corp Method of forming a mechanical and electrical connection
US2682849A (en) * 1952-02-12 1954-07-06 Gen Motors Corp Forming tool for reducing stock
US2782392A (en) * 1954-12-29 1957-02-19 Int Register Co Electrical terminal post having means to secure it to a panel
US2914745A (en) * 1957-12-06 1959-11-24 Malco Mfg Co Terminal lug

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3212176A (en) * 1960-11-03 1965-10-19 Sylvania Electric Prod Apparatus for staking and forming tabs
US3330027A (en) * 1962-12-27 1967-07-11 Gen Electric Method for making a laminated shunt for electrical measuring instruments
US3382566A (en) * 1963-07-02 1968-05-14 Stewart Warner Corp Chair construction
US3275974A (en) * 1964-04-06 1966-09-27 Amp Inc Electrical stirrup connector
US3436803A (en) * 1966-02-07 1969-04-08 Stanley J Sarnoff Uniting parts by the use of vibrational and positive material deforming forces and article made thereby
US3422395A (en) * 1966-10-17 1969-01-14 Ark Les Switch Corp Embossed male tab for use with quick connect terminals
US3704441A (en) * 1970-08-03 1972-11-28 Amp Inc Panel mounted electrical terminal
US3984913A (en) * 1974-02-07 1976-10-12 Aktiebolaget Electrolux Method of constructing an electrical fitting through a passage in a non-conductive wall
US4069571A (en) * 1976-05-26 1978-01-24 General Motors Corporation Wheel cylinder piston having a flared boss end and a method of flaring a boss end
US4411061A (en) * 1981-06-26 1983-10-25 Emerson Electric Co. Method of making a thermal switch having a lead interlocked thereto by a skived part of the lead
DE4215600A1 (en) * 1991-05-13 1992-11-19 Alps Electric Co Ltd Structure and caulking jig
US5323632A (en) * 1991-05-13 1994-06-28 Alps Electric Co., Ltd. Calking structure and jig intended for calking
DE4215600C2 (en) * 1991-05-13 1998-01-22 Alps Electric Co Ltd Caulking device
US6288469B1 (en) * 1997-07-02 2001-09-11 Mitsuba Corporation Fixing device and method for a brush holder

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