FR2686460A1 - FEMALE ELECTRIC CONTACT MEMBER. - Google Patents

Abstract

Female contact member of the type made from a metal blank having a certain elasticity, said blank being cut and bent in order to present, at one end, means for its connection to an electrical circuit, while at the other end, it is shaped to present a duct of rectangular section intended to receive a male electrical contact member (15), two opposite walls of the duct being extended to form resilient strips (10, 12) which are folded inside said duct in order to form an elastic clamp for gripping said male member (15) characterized in that each elastic blade (10, 12) has on its face turned facing the other elastic blade at least two projections (14), each projection one of the blades being arranged to coincide with the corresponding projection of the other blade, and the projections affecting the shape of a pyramid.

Description

The present invention relates to a

female electrical contact.

  The invention relates to an electrical contact member.

  that female which comprises, at one end, means of connection to an electrical circuit, for example, crimping lugs for an electric wire disposed axially

  or as a flag, legs for connection to a printed circuit

  mé etc and at the other end a conduit in which

  resiliently seres a male organ such as a connected tongue

  to an electric wire or to a circuit.

  The prior art knows a large number

  of female electrical contact members of the above type.

  Generally, to ensure a good electrical connection

  with the male organ this must be pinched with a

  pressure so that the engagement of the male organ requires a certain force; such an arrangement does not lend itself well to mechanization of the assembly of the two

contact bodies.

  One of the aims of the invention is to remedy

to this disadvantage.

  The female contact member according to the invention is of the type made from a metal blank having a certain elasticity, said blank being cut and folded

  in order to present, at one end, means for its connection

  sound to an electrical circuit, while at the other end

  it is shaped to present a duct with rectan section

  gular intended to receive a male electrical contact member, two opposite walls of the conduit being extended to form elastic blades which are folded inside

  of said conduit in order to form an elastic clamp for clamping

  rer said male member and is characterized in that each elastic blade has on its fa-this turned opposite the other elastic blade, at least two projections, each projection of one of the blades being arranged to coincide with the projection corresponding to the other blade, said projections affecting the shape of a pyramid. Thus, the effort necessary for the insertion of the male organ into the duct of the female organ is reduced while achieving good

electrical connection.

  Finally, each elastic blade comprises, in the vicinity

  swims from its free end, two ears folded to extend

  dre perpendicular to said blades and, on the side of the side walls, that said blades extend This limits the travel of the elastic blades and prevents them

can be forced.

  The invention will now be described in more detail with reference to an embodiment.

  particular given by way of example only and representing

  tee to the accompanying drawings, in which: Figure 1 is a plan view showing a blank

  from which a female contact member has been cut out

prepared according to the invention.

  Figure 2 is a perspective view showing

  the embodiment of the contact member of FIG. 1.

  Figure 3 is a perspective view of one

elastic blades.

  Figure 4 is a sectional view along the line

4-4 of figure 3.

  Figure 5 is a sectional view showing the engagement-

ment of a male contact member.

  Figures 1 to 5, there is shown a female electrical contact member which is formed from a metal blank good conductor of electricity and which is cut to present a body 1 with, at one end, two tabs 2 intended to be crimped on a conductor and two tabs 3 intended to be crimped on the end

stripped of said conductor.

  On the side opposite the legs 2, the body 1 is extended

  managed by a part 5 intended to form a section duct

rectangular.

  Part 5 includes a part 6 intended to form the core, two lateral bands 7 and 8 intended, after

  bending at right angles, to form the side walls of the con-

  duit and a band 9 adjacent to the band 8 and intended for

  be folded to form the ceiling wall of the duct, this

  the part being fixed by its free edge to the free edge of

the side wall 7.

  The side wall 7 is extended by an elastic blade 10 which has, near its end

free, two ears 11.

  The side wall 8 is extended by an elastic blade 12 provided, in the vicinity of its free end,

with two ears 13.

  As shown in Figure 2, the elastic blades

  ticks 10 and 12 are bent towards the inside of the conduit so as to constitute clamps for elastically enclosing a male electrical contact member 15 The ears 11 and 13 are bent, at right angles, to constitute stops

  likely to bear against the corresponding side walls

  to prevent the elastic blades from being able to be

  forced and that thus said blades no longer sufficiently enclose

the organ 15.

  As shown in Figures 3, 4 and, the elastic blade 10 comprises, on its face turned towards the side of the corresponding face of the elastic blade 12, a stamped shape determining two pyramids 14 whose vertices are located in a plane perpendicular to the longitudinal axis

of the blade.

  The elastic blade 12 also has a mouthpiece.

  ti on its face turned opposite the blade 10 to form two pyramids 14, the vertices of the latter coinciding with

  the vertices of the pyramids of blade 10.

  Thus, when the member 15 is inserted between the blades 10 and 12, it is clamped between four points of

  contact which promotes a good electrical connection, the ef-

  strong insertion of the member 15 is nevertheless decreased.

  Of course, the invention is not limited

  to the embodiment which has just been described and represented

  There are numerous modifications to detail that can be made without departing from the scope of the invention. Crimping lugs 2 and 3 are shown in the figures,

  but of course, these electrical connection means can

may be replaced by others.

R-E-V-E-N-D-I-C-A-T-I O-N-S

  1 Female contact member of the type produced

  from a metal blank having a certain elasticity

  ticity, said blank being cut and folded in order to present, at one end, means for its connection to an electrical circuit, while at the other end, it is shaped to present a conduit of rectangular section intended to receive an organ male electrical contact (15), two opposite walls of the conduit being extended to form elastic blades (10, 12) which are folded inside

  of said conduit in order to form an elastic clamp for clamping

  r said male member (15) characterized in that each

  elastic blade (10,12) has on its face turned in re-

  gard of the other elastic blade at least two projections (14), each projection of one of the blades being arranged to coincide with the corresponding projection of the other blade,

  each projection affecting the shape of a pyramid (14).

  2 Female contact member, according to the

  dication 1, characterized in that each elastic blade (10, 12) comprises, in the vicinity of its free end,

  two ears (11, 13) folded to extend perpendicularly

  rement to said blades and, on the side of the side walls,

that said blades extend.