US3905671A - Clamping connector - Google Patents

Clamping connector Download PDF

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Publication number
US3905671A
US3905671A US448297A US44829774A US3905671A US 3905671 A US3905671 A US 3905671A US 448297 A US448297 A US 448297A US 44829774 A US44829774 A US 44829774A US 3905671 A US3905671 A US 3905671A
Authority
US
United States
Prior art keywords
clamping
prongs
conductor
connector
dome
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
US448297A
Other languages
English (en)
Inventor
Ernst-Friedrich Lechner
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.)
Siemens AG
Siemens Corp
Original Assignee
Siemens 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 Siemens Corp filed Critical Siemens Corp
Application granted granted Critical
Publication of US3905671A publication Critical patent/US3905671A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/50—Clamped connections, spring connections utilising a cam, wedge, cone or ball also combined with a screw
    • H01R4/5041—Clamped connections, spring connections utilising a cam, wedge, cone or ball also combined with a screw using a tapered groove
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/50—Clamped connections, spring connections utilising a cam, wedge, cone or ball also combined with a screw
    • H01R4/5016—Clamped connections, spring connections utilising a cam, wedge, cone or ball also combined with a screw using a cone
    • H01R4/5025—Clamped connections, spring connections utilising a cam, wedge, cone or ball also combined with a screw using a cone combined with a threaded ferrule operating in a direction parallel to the conductor

Definitions

  • This invention relates to connectors in general, and more particularly to an improved clamping connector for establishing an electricconnection between a rectangular connector pin and a wire type conductor..
  • Clamping connectors of this general nature are disclosed in German Auslegeschrift No. 1,290,211, particularly on FIG. 25. These connectors consist of an approximately U-shaped elastic electrically conductive clamp which can be pushed and pressed onto a rectangular connector pin, together with a, wiretype conductor, using a tool. The two free leg ends of the clamp are bent inward to form approximately a semicircle, and are braced against one of the faces of the pin, with the central portion of the clamp pressed onto the opposite pin face. A conductor which is inserted between the central portion and the face of the pin is held securely .in reliable contact therewith.
  • the central portion of the clamp has a dome-shaped, outward protruding portion, with the wire bundle inserted in the cavity formed thereby.
  • This previously known clamping connector which is of elongated, sleeve-like design, has within the channel formed by the dome-shaped bulge, a plurality of, inwardly directed creases extending crosswise to form projections and depressions to increase contact pressure with the wire when the clamping connector is clamped in place. While this arrangement does make it difficult to pull the conductor out of the dome-shaped cable channel after clamping, in use, it has been discovered thatafter apparently satisfactory clampingand possibly because during the course of time, the resilience of the clamping connector diminishes, lateral dis placement of the clamped wire bundle inside the domeshaped bulge occurs and therewith a loosening of the clamping.
  • the present invention provides such a clamping connector.
  • the present invention includes on each side of the dome, the cutting out of window portions from which prongs are directed toward the interior of the clamp. These prongs prevent the conductor or conductorbundle from turning aside or shifting during or after clamping.
  • the prongs are angled inwardly about the lower edgeof the cutout, i.e., the one away from the top of the dome, or can be bent inwardly with a curvature.
  • the window length on each side of the dome and thereby, the length of the prongs is particularly desirable to select the window length on each side of the dome and thereby, the length of the prongs, such that it can be pressed in, in such a manner that the ends of the prongs rest on the surface of the pin after clamping.
  • the ends of the prongs may be pointed, or a triangular window cutout used.
  • the prongs may be angled inwardly around the lower window edge as well as outwardly about a further edge lying transversely to the longitudinal axis of the prongs atabout half the length of the prongs, or can be curved in the shape of an S.
  • FIG. la is a perspective view of a first embodiment of the clamping connector of the present invention.
  • FIG. lb is a cross sectional view of the embodiment of FIG. 1.-
  • FIG. 2a is a perspective view of the second embodiment of the clamping connector of the present invention.
  • FIG. 2b is a cross sectional view of the embodiment of FIG. 2a.
  • FIG. 3a is a perspective view of a third embodiment of the present invention.
  • FIG. 3b is a cross sectional view of the clamping'connector of FIG. 3a.
  • a clamping connector 2 is pushed onto a rectangular shaped connector pin 1.
  • the clamping connector 2 has a shape which is approximately that of a U-shaped sleeve, including legs 3 and 4 which are bent inwardly at their free ends 5 and 6 to form respective semicircles which rest on the underside 7 of the connector pin 1.
  • the top portion of the clamping connector 2 has a dome-shaped central portion 8 which is arched outwardly and into which is inserted a conductor 9 made up of stranded wires 10. The dome portion 8 presses the stranded wires of conductor 9 onto the surface 11 of the connector pin.
  • the sides of the dome are provided with window cutouts 14 to form prongs which are directed inwardly and downward, with the ends 16 of the prongs resting on the surface 11 of pin 1.
  • the stranded wires 10 of the cable 9 are held from any lateral displacement within the dome 8, due to a clawing engagement between the ends of the prongs and the surface of the pin.
  • this is a result of the end 16a of the prongs resting on the surface 11 of pin 1.
  • This claw engagement of the prong ends 16 on the pin surface 11 canbe increased by sharpening the prong ends shown by the prong ends 16/) on the lefthand side of FIG. lb, or by providing instead of rectangular cutouts 14, triangular cutouts, to result in triangular prongs.
  • the prongs 15' are angled off or curved, first inwardly about the lower edge of cutout I4 and, at about half the prong length, then angled outwardly so that the end pieces I6" of the prongs will be approximately parallel to the pin surface II and will be wedged between the stranded wire 10 of cable 9.
  • FIG. 3- illustraterates a further embodiment of the invention in which the shape and length of the prongs are chosen so that the prong ends 16" meet after clamping.
  • the cutouts 14" must extend almost to the top 17 of the-dome 8, leaving only narrow webs l8.
  • a webless continuous opening extending across the sides 12 and 13 and the top of the dome 8 may be formed.
  • a plurality of such continuous cutouts may be provided, each having prongs 15" which grip the conductors I0 from below.
  • a Clamping connector according to claim I wherein said prongs are curved and bent inward. 3. A Clamping connector according to. claim 1 wherein the length of the prongs is chosen so that after clamping, the prong ends rest on the surface of the connector pin.

Landscapes

  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
  • Multi-Conductor Connections (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
US448297A 1973-03-07 1974-03-05 Clamping connector Expired - Lifetime US3905671A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2311295A DE2311295C3 (de) 1973-03-07 1973-03-07 Klemmverbinder

Publications (1)

Publication Number Publication Date
US3905671A true US3905671A (en) 1975-09-16

Family

ID=5874040

Family Applications (1)

Application Number Title Priority Date Filing Date
US448297A Expired - Lifetime US3905671A (en) 1973-03-07 1974-03-05 Clamping connector

Country Status (16)

Country Link
US (1) US3905671A (enrdf_load_stackoverflow)
JP (1) JPS50387A (enrdf_load_stackoverflow)
BE (1) BE811924A (enrdf_load_stackoverflow)
CS (1) CS168696B2 (enrdf_load_stackoverflow)
DE (1) DE2311295C3 (enrdf_load_stackoverflow)
DK (1) DK136286C (enrdf_load_stackoverflow)
FR (1) FR2220888B1 (enrdf_load_stackoverflow)
GB (1) GB1448522A (enrdf_load_stackoverflow)
IE (1) IE38919B1 (enrdf_load_stackoverflow)
IT (1) IT1003698B (enrdf_load_stackoverflow)
LU (1) LU69563A1 (enrdf_load_stackoverflow)
NL (1) NL7402822A (enrdf_load_stackoverflow)
NO (1) NO134075C (enrdf_load_stackoverflow)
PL (1) PL89870B1 (enrdf_load_stackoverflow)
RO (1) RO72369A (enrdf_load_stackoverflow)
SE (1) SE389946B (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4087149A (en) * 1975-11-28 1978-05-02 Karl Fischer Electrical plug connections

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0621329B2 (ja) * 1984-07-09 1994-03-23 三菱重工業株式会社 銅合金鋳物の製造法
JPS61113734A (ja) * 1984-11-08 1986-05-31 Mitsubishi Heavy Ind Ltd 銅合金鋳物の製造法
JPS6460496A (en) * 1987-08-31 1989-03-07 Mitsubishi Heavy Ind Ltd Marine propeller

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2783442A (en) * 1953-08-03 1957-02-26 Thomas & Betts Corp Method of and apparatus for forming electric terminals
US3251022A (en) * 1963-08-19 1966-05-10 Kemper M Hammell Electrical connector clip
US3283289A (en) * 1964-01-20 1966-11-01 Amp Inc Terminal clip
US3660806A (en) * 1970-10-07 1972-05-02 Thomas & Betts Corp Connector
US3828298A (en) * 1973-01-22 1974-08-06 Amp Inc Electrical terminal for a braided shield on a coaxial cable

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2783442A (en) * 1953-08-03 1957-02-26 Thomas & Betts Corp Method of and apparatus for forming electric terminals
US3251022A (en) * 1963-08-19 1966-05-10 Kemper M Hammell Electrical connector clip
US3283289A (en) * 1964-01-20 1966-11-01 Amp Inc Terminal clip
US3660806A (en) * 1970-10-07 1972-05-02 Thomas & Betts Corp Connector
US3828298A (en) * 1973-01-22 1974-08-06 Amp Inc Electrical terminal for a braided shield on a coaxial cable

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4087149A (en) * 1975-11-28 1978-05-02 Karl Fischer Electrical plug connections

Also Published As

Publication number Publication date
GB1448522A (en) 1976-09-08
BE811924A (fr) 1974-09-06
DK136286B (da) 1977-09-19
IT1003698B (it) 1976-06-10
PL89870B1 (enrdf_load_stackoverflow) 1976-12-31
IE38919L (en) 1974-09-07
FR2220888A1 (enrdf_load_stackoverflow) 1974-10-04
NO134075B (enrdf_load_stackoverflow) 1976-05-03
DE2311295A1 (de) 1974-09-19
NL7402822A (enrdf_load_stackoverflow) 1974-09-10
IE38919B1 (en) 1978-06-21
DE2311295B2 (de) 1975-01-02
DE2311295C3 (de) 1975-08-14
JPS50387A (enrdf_load_stackoverflow) 1975-01-06
RO72369A (ro) 1982-05-10
FR2220888B1 (enrdf_load_stackoverflow) 1979-01-26
DK136286C (da) 1978-03-13
LU69563A1 (enrdf_load_stackoverflow) 1974-06-21
CS168696B2 (enrdf_load_stackoverflow) 1976-06-29
NO134075C (enrdf_load_stackoverflow) 1976-08-11
SE389946B (sv) 1976-11-22

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