US3376545A - Mechanical wire joint - Google Patents

Mechanical wire joint Download PDF

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Publication number
US3376545A
US3376545A US489663A US48966365A US3376545A US 3376545 A US3376545 A US 3376545A US 489663 A US489663 A US 489663A US 48966365 A US48966365 A US 48966365A US 3376545 A US3376545 A US 3376545A
Authority
US
United States
Prior art keywords
locking member
wire
cavity
spring
plug
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
US489663A
Other languages
English (en)
Inventor
Anzini Renato
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.)
Individual
Original Assignee
Individual
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
Priority claimed from CH1323964A external-priority patent/CH403912A/it
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US3376545A publication Critical patent/US3376545A/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
    • H01R4/52—Clamped connections, spring connections utilising a cam, wedge, cone or ball also combined with a screw which is spring loaded
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
    • F16G11/00—Means for fastening cables or ropes to one another or to other objects; Caps or sleeves for fixing on cables or ropes
    • F16G11/10—Quick-acting fastenings; Clamps holding in one direction only
    • F16G11/105—Clamps holding in one direction only
    • F16G11/108—Clamps holding in one direction only using a ball or a cylinder
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2101/00—One pole
    • 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
    • Y10T403/00—Joints and connections
    • Y10T403/60—Biased catch or latch
    • Y10T403/602—Biased catch or latch by separate spring

Definitions

  • a recess in the exposed surface of the locking member permits a pointed tool securely to engage the member for depressing the same against the spring to permit insertion of a wire or release of a clamped wire.
  • the preferred locking member is drop shaped having a hemispherical outer portion and a tapering inner portion.
  • a further inconvenience of the conventional devices consists in that contact between the ball and the conductor is limited to practically one point only.
  • the present invention provides a device which avoids the above mentioned difficulties and is also usable as a mechanical joint. It has a tubular shell whose cavity tapers toward an open end normally closed by a movable locking member under the urging of a resilient element. A recess in an outward face of the locking member is adapted to receive a pointed tool for releasing a wire, cable or the like that is clamped between the surface of the locking member and the inner wall of the shell.
  • the locking member preferably is drop-shaped, an essentially semi-spherical portion being directed outward, and an essentially conical portion being directed inward and partly surrounded by a spring which pushes the looking member into its closing position.
  • the semi-spherical portion of the member is formed with a central recess for receiving a pointed tool.
  • FIG. 1 shows another unipolar electric plug in an axially sectional view.
  • FIG. 2 illustrates an element of the plug shown in FIG. 1 in elevation.
  • FIG. 3 is a plan view of said element.
  • the plug has a brass shell 1 of cylindrical form whose cavity 5 has a cylindrical lower portion (El-F), an intermediate conically tapering portion (FH), a cylindrical throat (HI) and finally an outwardly open, conically flaring portion (IL).
  • El-F cylindrical lower portion
  • FH intermediate conically tapering portion
  • HI cylindrical throat
  • IL outwardly open, conically flaring portion
  • the lower cylindrical portion (EF) is seated by a States Patent 0 press fit on the cup shaped end 13' of the plug pin 13 which accommodates the lower end of a tapering helical spring 4 the upper end of which coaxially engages a conical inner portion CDA (FIG. 2) of a drop-shaped locking member 2 having an .outer semi-spherical portion A-B-C.
  • the semi-spherical portion A-B-C is provided with a central recess 2'.
  • the plug is operated as follows:
  • the wire is released by inserting a pointed tool (a needle, a nail or the like) into the recess 2 of the member 2 and pushing the same against the action of the spring 4.
  • a pointed tool a needle, a nail or the like
  • a wire or cable which is not sufliciently rigid for overcoming the spring 4 is inserted after displacement of the member 2 by means of a pointed tool. When the pressure on the member 2 is released, the wire is strongly held between the member 2 and the body 1.
  • the conical portion of the drop-shaped locking member 2 is restricted by the spring 4 in its swinging move ment and keeps its axial orientation even under stress. In other words, the locking member 2 cannot rotate about a transverse axis as the ball of a conventional device would do.
  • the device of the invention consists of very simple components capable of being manufactured by mass production methods without difficulty.
  • the shell 1 is fastened to the plug 13 by pressure applied as indicated by arrows 16-47.
  • a fastener having a tubular shell formed with an elongated cavity longitudinally tapering toward an open end, a locking member in the cavity, and yieldably resilient means biasing the locking member toward said open end for wedging engagement with the inner wall of said shell
  • the improvement of the locking member comprising an arcuate face of said locking member being formed with a recess therein, said face being exposed in said open end of the cavity during said engagement of the locking member with said inner wall andhaving a portion facing the inner wall for clamping an element thereagainst, and said locking member further having a rearwardly tapering end portion opposite said exposed face and positioned inside said resilient means.
  • said locking member being drop shaped, said face thereof being substantially hemispherical, and said locking member conically tapering inward of said cavity from said hemispherical face.
  • said yieldably 3 resilient means including a helical spring interposed between the other end of said cavity and said locking member, said conically tapering portion of said locking member being received in said spring.
  • said cavity 5 having a throat portion and flaring longitudinally from said throat portion in opposite directions, said throat portion and a terminal portion of said cavity adjacent the other end of said shell being substantially cylindrical, and a plug pin partly received in said terminal portion in sealing engagement, said pin being formed With a recess open toward said cavity, said yieldably resilient means including a spring partly received in the recess of said plug pin and engaging said locking member.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Clamps And Clips (AREA)
  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
  • Installation Of Indoor Wiring (AREA)
  • Suspension Of Electric Lines Or Cables (AREA)
US489663A 1964-10-12 1965-09-23 Mechanical wire joint Expired - Lifetime US3376545A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1323964A CH403912A (it) 1964-10-12 1964-10-12 Dispositivo per il fissaggio o il collegamento istantaneo, senza impiego di viti, di conduttori elettrici, di fili, cavi e corde
CH652265A CH422097A (it) 1964-10-12 1965-05-08 Dispositivo per il fissaggio o il collegamento istantaneo, senza impiego di viti, di conduttori elettrici, fili, cavi e corde

Publications (1)

Publication Number Publication Date
US3376545A true US3376545A (en) 1968-04-02

Family

ID=25699709

Family Applications (1)

Application Number Title Priority Date Filing Date
US489663A Expired - Lifetime US3376545A (en) 1964-10-12 1965-09-23 Mechanical wire joint

Country Status (10)

Country Link
US (1) US3376545A (enrdf_load_stackoverflow)
AT (1) AT263108B (enrdf_load_stackoverflow)
CH (1) CH422097A (enrdf_load_stackoverflow)
DK (1) DK115932B (enrdf_load_stackoverflow)
ES (1) ES318226A1 (enrdf_load_stackoverflow)
FI (1) FI43749B (enrdf_load_stackoverflow)
FR (1) FR1449333A (enrdf_load_stackoverflow)
GB (1) GB1064084A (enrdf_load_stackoverflow)
NL (1) NL147589B (enrdf_load_stackoverflow)
NO (1) NO116920B (enrdf_load_stackoverflow)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3512122A (en) * 1968-02-19 1970-05-12 Richard J Hughes Test connector for electrical equipment
US3604876A (en) * 1968-12-23 1971-09-14 Max Pasbrig Electrical contact device
US3628221A (en) * 1968-05-02 1971-12-21 Max Pasbrig Device for clamping and tightening cables and the like
CN104577402A (zh) * 2015-01-22 2015-04-29 中山市英利莱电气科技有限公司 电气连接自锁端子

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4240919C2 (de) * 1991-12-09 1997-05-15 Instron Corp Greifvorrichtung
GB2348920A (en) * 1999-04-15 2000-10-18 Robert Christopher Walton Shoe lace clamp fastener
EA034798B1 (ru) 2015-02-13 2020-03-23 Вайэ-Холдер Кфт Устройство для протяжки кабеля
CN109193185A (zh) * 2018-08-13 2019-01-11 郑州泰恩科技有限公司 一种便捷电线接口及电机保护器

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1061330A (en) * 1912-06-07 1913-05-13 George L Self Twine-holder.
GB397935A (en) * 1933-01-20 1933-09-07 James Morrison Brown Improvements in plug and socket connectors, ceiling roses and like electric fittings
GB504915A (en) * 1937-07-31 1939-05-01 David Wallis Improvements relating to wire gripping devices, particularly for use in electrical connectors, wire fencing equipment, wiring machines, and the like
US2524649A (en) * 1945-06-08 1950-10-03 Buhler Heinrich Wire clamp
CH307114A (fr) * 1952-11-18 1955-05-15 Mouttet Leon Borne de connexion pour conducteur électrique.
US2770794A (en) * 1949-03-30 1956-11-13 Hofmann Erich Electrical connecting device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1061330A (en) * 1912-06-07 1913-05-13 George L Self Twine-holder.
GB397935A (en) * 1933-01-20 1933-09-07 James Morrison Brown Improvements in plug and socket connectors, ceiling roses and like electric fittings
GB504915A (en) * 1937-07-31 1939-05-01 David Wallis Improvements relating to wire gripping devices, particularly for use in electrical connectors, wire fencing equipment, wiring machines, and the like
US2524649A (en) * 1945-06-08 1950-10-03 Buhler Heinrich Wire clamp
US2770794A (en) * 1949-03-30 1956-11-13 Hofmann Erich Electrical connecting device
CH307114A (fr) * 1952-11-18 1955-05-15 Mouttet Leon Borne de connexion pour conducteur électrique.

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3512122A (en) * 1968-02-19 1970-05-12 Richard J Hughes Test connector for electrical equipment
US3628221A (en) * 1968-05-02 1971-12-21 Max Pasbrig Device for clamping and tightening cables and the like
US3604876A (en) * 1968-12-23 1971-09-14 Max Pasbrig Electrical contact device
CN104577402A (zh) * 2015-01-22 2015-04-29 中山市英利莱电气科技有限公司 电气连接自锁端子

Also Published As

Publication number Publication date
AT263108B (de) 1968-07-10
NO116920B (enrdf_load_stackoverflow) 1969-06-09
GB1064084A (en) 1967-04-05
CH422097A (it) 1966-10-15
NL6512479A (enrdf_load_stackoverflow) 1966-04-13
NL147589B (nl) 1975-10-15
DK115932B (da) 1969-11-24
ES318226A1 (es) 1966-04-16
FR1449333A (fr) 1966-08-12
FI43749B (enrdf_load_stackoverflow) 1971-03-01

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