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
  • H01R4/24—Connections using contact members penetrating or cutting insulation or cable strands
  • H01R4/2416—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type
  • H01R4/242—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type the contact members being plates having a single slot
  • H01R4/2425—Flat plates, e.g. multi-layered flat plates
  • H01R4/2429—Flat plates, e.g. multi-layered flat plates mounted in an insulating base
  • H01R4/2433—Flat plates, e.g. multi-layered flat plates mounted in an insulating base one part of the base being movable to push the cable into the slot
• • 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
  • H01R43/01—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for connecting unstripped conductors to contact members having insulation cutting edges

Definitions

• the present invention relates to a self-stripping connection strip for insulated electrical wires.
• connection members making it possible to establish electrical contact without having to strip the insulated wires, (for example the "Scotch-Lock” system from the company 3M), but most of them between them ensure the simultaneous connection of only one or two wires, and none of them provides specific means to remove the established connections, which makes a modification of wiring very tedious, in particular when the connection concerns a ribbon cable formed of numerous wires, as is frequently the case in the electronic field. Most often, it is necessary to cut the multiconductor cable, then to remove with a pair of pliers the pieces of wire remaining in the connector or connectors, which results in significant loss of time.
• the device according to the present invention eliminates all these drawbacks. Indeed, it allows not only to perform, without stripping, the simultaneous connection of a large number of wires, but above all to undo the connection of all the wires in a single operation, by simple operation of a lever.
• It consists of a moving part provided with cylindrical holes each allowing the passage of an insulated wire, and which, thanks to a rotary cam actuated by a lever integral with it, can be approached or moved away from a base comprising blades of split metal constituting the contacts and determined so that the insulated wires can be forcefully inserted therein so as to cut the insulation and establish contact between each conductor and the corresponding metal blade by bringing the movable part closer to the base, and so that all the wires are released at the same time by removing these two elements.
• FIGS. 1 and 2 show the device as a whole, seen respectively from the front, in elevation and in plan
• Figures 3 and 4 show under the same conditions the base alone
• Figure 5 shows an enlarged contact seen from the front
• Figure 6 is a cross section along the arrows AA of Figure 1
• Figures 7 and 8 are two cross sections along the arrows AA in Figure 1 showing the bar with the movable part in the high and low position.
• FIGS. 1 to 8 consists of a base 1 carrying a variable number of contacts 2, depending on the model, and provided at its ends with two uprights 5 along which a movable part 3 can slide, actuated by a rotary cam 4 maneuvered using a lever 6.
• the base 1 comprises a series of housings intended to maintain the contacts 2. These consist of a thin metal blade having a vertical slot 7 flared upwards and whose width is determined so that the conductive element of an insulated wire 8 inserted by force into said slot is strongly clamped between its edges so as to establish a good electrical contact, the thinness of the metal blade ensuring the isolation of the insulation.
• the contacts will advantageously be staggered in order to reduce the overall width of the device ( Figure 4).
• the moving part 3 is equipped with as many guides 9 as there are contacts 2. These are cylindrical holes, with axes perpendicular to the contacts, each allowing the passage of an insulated wire 8 when the moving part is in the high position. , and ensuring the insertion of each wire into the slot 7 of a contact when it is applied against the base 1.
• the movements of the moving part 3 are controlled by the cam 4 consisting of a cylinder rotating around an eccentric axis 10, the ends of which are engaged in bearings provided for this purpose in the uprights 5 of the base 1.
• the lever 6 of operation being integral with the cam allows it to print a rotation of about 180 ° in both directions, limited by a rib 11 in relief on the cylinder of the cam, which causes either the application of the moving part 3 against the base, and therefore the connection of the wires 8, ie. on the contrary, its spacing and the simultaneous release of all the wires, which allows them to be easily removed from the guides 9.
• connection strip allowing the transmission of an electrical signal from one support to another.
• This set uses the principle of so-called "C.A.D.” connections. self-stripping.
• the insulated wires 8 to be connected are introduced into the guides 9 of the moving part 3.
• the cam 4 by a rotation of 180 ° using the lever 6 pushes the moving part 3 whose guides 9 overlap each contact 2 of the base 1, until complete integration of a room in the other.
• the wires held in the guides of the moving part 3 are forcefully inserted into the contacts 2.
• the opposite direction that is to say by tilting the cam 4 by 180 ° opposite the first operation, thanks to the right and left stops 12 which follow the movements of the cam, the moving part is raised and the wires 8 have thus been disconnected and released completely.
• the device described is especially designed to receive several contacts 2, but it may possibly only have one.
• One of the main applications targeted is the production of connectors for printed circuits.
• the base 1 will advantageously include elastic lugs 14 allowing the assembly of the assembly in holes provided for this purpose in the circuit board, the contacts 2 ending in a weldable tail 15.
• the base 1, the moving part 3 and the cam 4 may advantageously be made of insulating plastic injection molded, which allows a very competitive manufacturing cost.

Landscapes

• Details Of Connecting Devices For Male And Female Coupling (AREA)

Applications Claiming Priority (3)

Publications (1)

Family

ID=9465257

Family Applications (1)

Country Status (3)

Families Citing this family (9)

Family Cites Families (5)

• 1994
  • 1994-07-05 FR FR9408582A patent/FR2722342B1/fr not_active Expired - Fee Related
• 1995
  • 1995-07-04 EP EP95925002A patent/EP0721683A1/de not_active Withdrawn
  • 1995-07-04 WO PCT/FR1995/000888 patent/WO1996001510A1/fr not_active Application Discontinuation

Non-Patent Citations (1)

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