US3706957A - Fastening system - Google Patents

Fastening system Download PDF

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Publication number
US3706957A
US3706957A US46962A US3706957DA US3706957A US 3706957 A US3706957 A US 3706957A US 46962 A US46962 A US 46962A US 3706957D A US3706957D A US 3706957DA US 3706957 A US3706957 A US 3706957A
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US
United States
Prior art keywords
fastening element
socket
base
hole
cam surface
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
US46962A
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English (en)
Inventor
James Iantorno
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.)
Sealectro Corp
Original Assignee
Sealectro Corp
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 Sealectro Corp filed Critical Sealectro Corp
Application granted granted Critical
Publication of US3706957A publication Critical patent/US3706957A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/02—Arrangements of circuit components or wiring on supporting structure
    • H05K7/12—Resilient or clamping means for holding component to structure

Definitions

  • ABSTRACT A fastening system or device for general use in a variety of applications such as panels, doors, and general cover fastenings, but with special advantages in transistor sockets, bushings, terminals and spacer mountings.
  • the invention is also suitable for use in /4 turn fasteners.
  • the invention comprises an itregularly shaped opening in a base or mounting plate and a corresponding irregular shape in a complementary piece permitting the piece to pass through the opening securely locking the two elements together when relative motion occurs.
  • This invention is also suitable for use in V4 turn fasteners.
  • the invention comprises an irregularly shaped opening in a base or mounting plate and a corresponding irregular shape in a complementary piece permitting the piece to pass through the opening securely locking the two elements together when relative motion occurs between them.
  • tip jacks may be made up of (l) insulator (2) contact (3) threaded sleeve (4) terminal (5) nut and (6) lockwasher. This unit requires wrenching from both sides, or the nut is eliminated and the mount material threaded.
  • )4 turn fasteners sometimes supplied as two sub assemblies, are made of at least two pieces each and both usually require riveting at two or more points and possibly eyeletting. Size and weight are also objectionable in both the above examples.
  • One common type of transistor socket or bushing marketed is made up of contacts mounted in a molded insulated body held in place *by pressing a plated stamped metal retaining ring onto the minor diameter after the socket has passed through the mounting hole.
  • a second type of socket contains a threaded aluminum shell in addition to the contacts and insulation, and is fastened through the use of a threaded retainer nut.
  • a third type is a compression mounted socket which calls for countersunk holes in the chassis to avoid shaving, deforming or damaging the component.
  • the object of this invention is to provide a simple, low cost, light weight universal fastening device for mounting primarily into a "flattened round hole such as D shape, but is not limited to this configuration.
  • Other shapes such as square and triangular, 'etc., can be used, where rotating either the male or female member will pennit an interference and engagement such that they will resist parting when an axial force is applied.
  • the device which can be made of plastic or metal, is self locking and in the case of those containing the cam device, i.e., a cam surface, are self seating.
  • FIG. 1 is an exploded view showing a transistor socket being inserted into a mounting plate by a friction inserting tool.
  • FIG. 1A illustrates a modified mounting tool for use with flattened round or D sockets.
  • FIG. 2 shows the assembly prior to being rotated.
  • FIG. 3 illustrates the socket after being rotated and in completely secured position.
  • FIG. 4 is a view of the socket after being removed and illustrating, in exaggerated form, the integral securing channel or groove formed by the configuration mounting plate aperture.
  • FIG. 5 is a partial cross-sectional view of a socket multiple pin driving tool
  • FIG. SA is a bottom view thereof.
  • FIG. 6 is a partial sectional view of a single pin driving tool, while FIG. 6A is a bottom view thereof.
  • FIG. 7 is a socket upon which the tools illustrated in either FIG. 5 or FIG. 6 may be used.
  • FIG. 8 is a side view of the socket shown in FIG. 7.
  • FIG. 9 is a socket provided additionally with a positioning and tightening cam surface.
  • numeral 1 illustrates a socket or bushing body having a section 2 cut away to form a geometrical shape, such as a D shape, and having contacts 3 thereon.
  • Element 1 may be a socket as illustrated, or any other transistor holding form or general bushing form.
  • Socket 1 is forced by tool 4 having a serrated interior surface formed by inwardly extending teeth 5 which abut against and may slightly cold form and flow against the outside circumference of the shoulder on socket 1.
  • the socket when the socket is inserted into aperture 6 in mounting plate 7, the socket can be driven and will have a groove 27 formed therein (See FIG. 4) after A turning.
  • This groove will securely, but removably, lock the socket in the mounting plate. Reversing the direction of rotation will permit removal of the socket without unneccessary deformation so that it can be reinstalled.
  • FIG. 1A A modified tool, i.e., a matching D tool 9 is illustrated in FIG. 1A having a D head 8 therein.
  • FIG. 5 A further modified form of driving tool 10 having pin driving elements 11 therein is seen in FIG. 5.
  • Element 12 illustrates a still further modified form of driving tool having a side pin or abutment 13 around the circumference thereof.
  • either tool 10 or 12 could be equipped with the combination elements 11 and 13 to more effectively perform their driving functions.
  • either one or the other of the tools illustrated in FIGS. 5 and 6 could be used to drive the socket 14 having contacts 15 and cooperating notch 16 therein.
  • Notch 16 may also serve as an orienting element in order that the socket is correctly positioned.
  • the operation of the socket in FIG. 8 is the same as in FIG. 4, wherein a securing channel is turned beneath the head of the socket since the body of the socket has a D-shaped configuration 17.
  • the modified socket shown in FIG. 9, in addition to having the D flat 18 in body 19, has a cam surface comprising a vertical section 20 and an inclined plane surface -2l.
  • the inclined surface 21 will not only serve to position the socket, but will also serve to draw down and tighten the socket.
  • Parts may be made and, for example, mounted as follows:
  • An insulator is machined or molded b.
  • a conductor is either press-fit into the axial bore or molded in.
  • c. Punch a flattened round hole 6 into the mounting plate.
  • d. Place terminal 1 secure.
  • the assembling system being made up of fewer and simpler, more stable parts, automatic component assembly can be accomplished with a minimum of difinto hole 6 and rotate A turn to ficulty.
  • the completed component also has a desirable center of gravity that aids in feeding it into the chassis.
  • the best driving geometry can be selected for specific applications and include internal and external hex, single or double d, straight or angular screw driver slot, etc., in addition to pin driving tools that mate with the socket holes. Automation tooling design might also installed, retaining sufficient holding power to meet performance requirements.
  • a device comprising a fastening element having a D-shaped section; a base plate having at least one hole therein in which said fastening element is positioned, said hole formed with a D-shape to match the shape of the fastening element; said fastening element having an enlarged head portion to position and limit axial movement of the fastening element in one direction; the flat portion of the D-shaped hole having a limited thickness for erosion of the fastening element when it is turned relative to the base; said fastening element also formed with a cam surface which engages one side of the base for securely seating the head against the base; said cam surface including a vertical surface adjoining the head and a downwardly inclined bearing ledge terminating in the flattened portion of the base.
  • a device as claimed in claim 1 wherein the fastening element is a transistor socket formed of polytetrafluoroethylene.
  • a device as claimed in claim 1 wherein said fastening element is a socket for supporting circuit com-- ponents and includes conductive contacts for connection to an external circuit.

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Connection Of Plates (AREA)
  • Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
US46962A 1970-06-17 1970-06-17 Fastening system Expired - Lifetime US3706957A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US4696270A 1970-06-17 1970-06-17

Publications (1)

Publication Number Publication Date
US3706957A true US3706957A (en) 1972-12-19

Family

ID=21946315

Family Applications (1)

Application Number Title Priority Date Filing Date
US46962A Expired - Lifetime US3706957A (en) 1970-06-17 1970-06-17 Fastening system

Country Status (5)

Country Link
US (1) US3706957A (OSRAM)
CA (1) CA942398A (OSRAM)
DE (1) DE2130317A1 (OSRAM)
FR (1) FR2099189A5 (OSRAM)
GB (1) GB1317855A (OSRAM)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4389021A (en) * 1981-03-16 1983-06-21 Amp Incorporated Panel mounted connector for use in confined areas
US4703508A (en) * 1986-04-23 1987-10-27 Sony Corporation Loudspeaker terminal strip
US11513018B2 (en) * 2020-09-30 2022-11-29 Rosemount Inc. Field device housing assembly
US12218775B2 (en) 2022-12-19 2025-02-04 Rosemount Inc. Advanced physical layer (APL) adapter for legacy field devices
US12493315B2 (en) 2024-04-30 2025-12-09 Rosemount Inc. Ethernet-APL field device having reduced energy consumption

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR748021A (fr) * 1932-12-23 1933-06-27 Perfectionnements à l'assemblage des tubes
US2586696A (en) * 1948-12-09 1952-02-19 Colonial Radio Corp Radio tube socket mounting
US2889124A (en) * 1953-04-29 1959-06-02 Sylvania Electric Prod Means for mounting plastic parts
US3023473A (en) * 1958-11-26 1962-03-06 United Carr Fastener Corp Fastening device
US3253249A (en) * 1961-05-03 1966-05-24 Republic Ind Corp Bulb socket for panel mounting
US3298350A (en) * 1965-12-30 1967-01-17 Gen Electric Dial pointer assembly
US3388210A (en) * 1967-03-09 1968-06-11 Arvin Ind Inc Printed circuit board adapter
DE1429542A1 (de) * 1962-11-07 1969-01-23 Carr Fastener Co Ltd An bzw. in einem durchlochten Traeger loesbar einsetzbarer Halter aus elastischem synthetischem Kunststoff zum Halten und/oder Tragen eines Gegenstandes
US3559152A (en) * 1968-06-07 1971-01-26 Gen Motors Corp Lamp socket and panel assembly

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR748021A (fr) * 1932-12-23 1933-06-27 Perfectionnements à l'assemblage des tubes
US2586696A (en) * 1948-12-09 1952-02-19 Colonial Radio Corp Radio tube socket mounting
US2889124A (en) * 1953-04-29 1959-06-02 Sylvania Electric Prod Means for mounting plastic parts
US3023473A (en) * 1958-11-26 1962-03-06 United Carr Fastener Corp Fastening device
US3253249A (en) * 1961-05-03 1966-05-24 Republic Ind Corp Bulb socket for panel mounting
DE1429542A1 (de) * 1962-11-07 1969-01-23 Carr Fastener Co Ltd An bzw. in einem durchlochten Traeger loesbar einsetzbarer Halter aus elastischem synthetischem Kunststoff zum Halten und/oder Tragen eines Gegenstandes
US3298350A (en) * 1965-12-30 1967-01-17 Gen Electric Dial pointer assembly
US3388210A (en) * 1967-03-09 1968-06-11 Arvin Ind Inc Printed circuit board adapter
US3559152A (en) * 1968-06-07 1971-01-26 Gen Motors Corp Lamp socket and panel assembly

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4389021A (en) * 1981-03-16 1983-06-21 Amp Incorporated Panel mounted connector for use in confined areas
US4703508A (en) * 1986-04-23 1987-10-27 Sony Corporation Loudspeaker terminal strip
US11513018B2 (en) * 2020-09-30 2022-11-29 Rosemount Inc. Field device housing assembly
US12218775B2 (en) 2022-12-19 2025-02-04 Rosemount Inc. Advanced physical layer (APL) adapter for legacy field devices
US12493315B2 (en) 2024-04-30 2025-12-09 Rosemount Inc. Ethernet-APL field device having reduced energy consumption

Also Published As

Publication number Publication date
GB1317855A (en) 1973-05-23
FR2099189A5 (OSRAM) 1972-03-10
DE2130317A1 (de) 1972-01-20
CA942398A (en) 1974-02-19

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