U.S. patent number RE41,224 [Application Number 11/334,820] was granted by the patent office on 2010-04-13 for connector.
This patent grant is currently assigned to Japan Aviation Electronics Industry, Limited. Invention is credited to Yoshifumi Kubota, Yoshihide Kuroki, Masahide Watanabe.
United States Patent |
RE41,224 |
Kubota , et al. |
April 13, 2010 |
Connector
Abstract
A connector including a first connector element and a second
connector element that are coupled into a single unit, in which the
first connector element has an engagement projection that projects
interior of the first connector element and extends in the
direction of the depth of the first connector element so that the
front end of the engagement projection is spacedly apart from the
front edge of the first connector element, and the second connector
element is formed with an engagement slit that extends in the
direction of depth of the second connector element and engages with
the engagement projection of the first connector element.
Inventors: |
Kubota; Yoshifumi (Tokyo,
JP), Kuroki; Yoshihide (Tachikawa, JP),
Watanabe; Masahide (Akiruno-shi, JP) |
Assignee: |
Japan Aviation Electronics
Industry, Limited (Tokyo, JP)
|
Family
ID: |
32850714 |
Appl.
No.: |
11/334,820 |
Filed: |
January 18, 2006 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
Issue Date |
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Reissue of: |
10426218 |
Apr 30, 2002 |
06776660 |
Aug 17, 2004 |
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Current U.S.
Class: |
439/677;
439/680 |
Current CPC
Class: |
H01R
43/16 (20130101); H01R 13/629 (20130101); H01R
12/75 (20130101) |
Current International
Class: |
H01R
13/648 (20060101) |
Field of
Search: |
;439/680,681,677,607,609,610 |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
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1282124 |
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Jan 2001 |
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CN |
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1368768 |
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Sep 2002 |
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CN |
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10104288 |
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Apr 2002 |
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DE |
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0805523 |
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Nov 1997 |
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EP |
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7-176351 |
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Jul 1995 |
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JP |
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10-321302 |
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Dec 1998 |
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JP |
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10-334993 |
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Dec 1998 |
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JP |
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2000-223216 |
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Jun 2000 |
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JP |
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2000-223215 |
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Aug 2000 |
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JP |
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2000-223218 |
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Aug 2000 |
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JP |
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2001-35603 |
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Feb 2001 |
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JP |
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2001-196133 |
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Jul 2001 |
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JP |
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2001-230021 |
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Aug 2001 |
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JP |
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WO 97/39610 |
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Oct 1997 |
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WO |
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Other References
Derman, Glenda, "Monitors Make Net Connections", 1996, Electronic
Engineering Times, vol. 933, pp. 60 and 69. cited by other .
Lewis, Peter; "On Technology"; 2002, Fortune Magazine, p. 240.
cited by other .
"iPodDock/iPod Cradle"; www.bookendz/dock_cradle.htm, downloaded
Feb. 27, 2003, 2 pages. cited by other .
"Neuros MP3 Digital Audio Computer"; www.neurosaudio.com.
downloaded Apr. 9, 2003, 6 pages. cited by other.
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Primary Examiner: Gushi; Ross N
Attorney, Agent or Firm: Townsend and Townsend and Crew
LLP
Parent Case Text
.Iadd.Notice: More than one reissue application has been filed for
the reissue of U.S. Pat. No. 6.776,660. The reissue applications
are application Ser. Nos. 11/334,820 (present application),
29/318,045, 12/613,474, and 12/613,482 all of which are
continuation reissues of 11/334,820..Iaddend.
Claims
What is claimed is:
1. A connector comprising a first connector element and a second
connector element that are coupled together, wherein said first and
second connector elements are each formed with a metallic shell;
said first connector element is formed with an engagement
projection that projects toward an interior of said first connector
element and extends in a direction of depth of said first connector
element, a front end of said engagement projection being spaced
apart from a front edge of said connector element by a
predetermined distance; said engagement projection is formed by
cutting a C-shape slit in a top surface of said metallic shell of
said first connector element and bending a tongue formed
downwardly.Iadd., an engagement edge of the tongue extending by a
first length in the direction of depth of said first connector
element.Iaddend.; and said second connector element is formed with
an .Iadd.elongated .Iaddend.engagement slit in said metallic shell
.Iadd.the elongated engagement slit having a second length
.Iaddend.that .Iadd.starts at a front edge of the metallic shell of
the second connector element and .Iaddend.extends in a direction of
depth of said metallic shell of said second connector for engaging
with said engagement projection formed in said metallic shell of
said first connector element.Iadd., wherein, the engagement
projection and the elongated engagement slit are configured such
that when pushing the second connector element into the first
connector element, the engagement edge of the tongue of the
engagement projection engages the elongated engagement slit at the
front edge of the metallic shell of the second connector element to
provide for straight alignment, and wherein, the first length of
the engagement edge of the tongue slides along the second length of
the elongated slit to guide the sliding movement as the second
connector element is pushed in the direction of depth and toward a
rear of the first connector element.Iaddend..
2. The connector according to claim 1, wherein said engagement
projection is provided at two locations of said first connector
element so as to be parallel to side edges of said first connector
element, and said .Iadd.elongated .Iaddend.engagement slit is
provided at two location.Iadd.s .Iaddend.of said second connector
element so as to be parallel to side edges of said second connector
element and to correspond to said two locations of said engagement
projections of said first connector element.
3. The connector according to claim 1, wherein said engagement
projection has a predetermined length in said depth direction and
said .Iadd.elongated .Iaddend.engagement slit has a predetermined
length in said depth direction which is at said predetermined
length of said engagement projection.
.Iadd.4. An electrical connector system comprising: a first
electrical connector including: a body having a metallic top plate,
a metallic bottom plate, a first side and a second side, the body
having a width W1 and a depth D1, wherein the first and second
sides are smaller relative to the top and bottom plates providing a
substantially flat body; an array of electrodes extending in the
direction of the depth D1 inside the body; and first and second
projections, each projection being formed by cutting a C-shaped
slit in the metallic top plate and bending a tongue formed
downwardly, each projection longitudinally extending along the
depth D1, the first and second projections being formed at about
the same distance from the first side and the second side,
respectively; and a second electrical connector including: a body
having a metallic top plate, a metallic bottom plate, a first side
and a second side, the body having a width W2 and a depth D2,
wherein the first and second sides are smaller relative to the top
and bottom plates providing a substantially flat body; an array of
electrodes extending in the direction of the depth D2, the array of
electrodes being positionally secured by insulating material to an
interior surface of the body; and first and second elongated slits
formed on the metallic top plate of the body, the first and second
elongated slits starting from a front edge of the metallic top
plate and longitudinally extending in the direction of the depth
D2, the first and second elongated slits being formed at about the
same distance from the first side and the second side of the body,
respectively, wherein, the engagement projection and the elongated
engagement slit are configured such that when inserting the second
connector element into the first connector element, the engagement
projection engages the elongated engagement slit to provide for
straight alignment and to guide the sliding movement as the second
connector element is pushed in the direction of depth and toward a
rear of the first connector element. .Iaddend.
.Iadd.5. The electrical connector system of claim 4 wherein the
array of electrodes of the second electrical connector are
positionally secured to the metallic bottom plate of the body,
leaving an insertion cavity in the interior of the body of the
second electrical connector between the array of electrodes and the
metallic top plate. .Iaddend.
.Iadd.6. The electrical connector system of claim 4 wherein the
second electrical connector further comprises at least one raised
springy holder that is raised upwardly from the top plate of the
body of the second electrical connector, the raised springy holder
providing for compressive action against the body of the first
electrical connector when the first and second connectors mate.
.Iaddend.
.Iadd.7. The electrical connector system of claim 4 wherein each of
the first and second elongated slits in the second electrical
connector has a length that is about two thirds of the depth D2 of
the body of the second electrical connector. .Iaddend.
.Iadd.8. The electrical connector system of claim 4 wherein each of
the first and second projections in the first electrical connector
has a length that is about two thirds of the depth D1 of the body
of the first electrical connector. .Iaddend.
.Iadd.9. The electrical connector system of claim 4 wherein the
first elongated slit in the second electrical connector is formed
adjacent to and at a predetermined distance form the first side of
the second electrical connector, and the second elongated slit is
formed adjacent to and at a predetermined distance from the second
side of the second electrical connector, and wherein the outermost
electrodes in the array of electrodes in the second electrical
connector are formed between the first elongated slit and the
second elongated slit. .Iaddend.
.Iadd.10. The electrical connector system of claim 4 wherein the
first projection in the first connector is formed adjacent to and
at a predetermined distance form the first side of the first
connector, and the second projection is formed adjacent to and at a
predetermined distance from the second side of the first connector,
and wherein the outermost electrodes in the array of electrodes in
the first electrical connector are formed between the first
projection and the second projection. .Iaddend.
Description
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a connector and more particularly
to an electrical connector used in, for instance, small size
electrical appliances.
2. Prior Art
In for instance, computer related electronic appliances, the
electrical connections including connections to an AC adapter, to
interfaces, etc. are made in many different ways. Such electrical
connections are typically made by connectors that substantially
comprise a receptacle (female) side connector element and a plug
(male) side connector element that is brought into the receptacle
side connector and coupled thereto for making electrical connection
in between so that pin-shaped electrodes installed in the connector
elements are connected.
More specifically, connectors typically include in their metal
shells a plurality of pins (or terminals) that are arranged in
parallel in their longitudinal directions and positionally secured
by insulator material such as polyamide, LCP (liquid
crystallization polymer), etc. The pins in the receptacle and plug
side connector elements are spacedly arranged side by side in the
direction in which the connector elements are made together.
Upon making connection of the plug side connector element into the
receptacle side connector element, it is necessary that responsive
pins in two connector elements be aligned to be on a straight line.
In other words, it is necessary to avoid the connector elements
from being oblique to each other when they are brought together at
their front edges for connection. If the plug side connector
element in an oblique posture with reference to the receptacle side
connector element, as shown in FIG. 10, is pushed into the
receptacle side connector element, an irregular pin connection is
made (as at 100) as seen from the enlarged view shown in the circle
in FIG. 10, and this would cause several problems including
short-circuiting.
In addition, when the plug side connector element is connected to
the receptacle connector element in a slanted posture (which can
easily occur when there is size differences between the receptacle
and plug side connector elements), removing of the plug side
connector element from the receptacle side connector element is not
easily done and occasionally requires forcibly and repeated twists
on the shell of the plug side connector element. This would cause
damage to the pins and the shells of both connector elements.
Thus, though pin alignment is essential when connection is made
between the two connector elements, such a pin alignment is not
obtained easily and this difficulty can occur often when the
connector is small in size and used in small size electrical
devices such as a personal digital assistance (PDA), digital
cameras, camcorders, etc.
SUMMARY OF THE INVENTION
Accordingly, the object of the present invention is to provide an
electrical connector that allows accurate and secure connections or
coupling between connector elements to be made easily without
causing pin or electrode misalignment.
The above object is accomplished by a unique structure of the
present invention for a connector that comprise a first connector
element and a second connector element that are coupled together
when the second connector element is fitted in the first connector
element, and in the present invention: the first connector element
is formed with an engagement projection that extends in the
direction of the depth of the first connector element, the front
end of the engagement projection being spacedly apart from the
front edge of the first connector element; and the second connector
element is formed with an engagement slit or slot that extends in
the direction of the depth of the second connector element so that
the engagement slit receives therein the engagement projection of
first connector element when the first and second connector
elements are connected.
With the structure above, upon connecting the second connector
element to the first connector element, the front end of the
engagement slit of the second connector element engages with the
engagement projection of the first connecting element after the
front end of the engagement slit has advanced the distance between
the front edge of the first connector element and the front end of
the engagement projection, and then the second connector element is
pushed all the way to back of the first connector element in the
depth of the first connector element while being guided by the
engagement slit engaging with the engagement projection.
Accordingly, even when the second connector element is obliquely
pushed into the first connector element at the initial stage of
coupling process, such oblique posture is corrected by the
engagement projection of the first connector element as the second
connector element is pushed and advanced to the back of the first
connector element, and a connection between the first and second
connector elements with the pins (electrodes) inside both of them
being adapted straight can be made assuredly.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a perspective view of the first connector body (first
connector element) of the connector according to the present
invention;
FIG. 2 is a perspective view of the second connector body (second
connector element) of the connector according to the present
invention;
FIG. 3 is a schematic top view of the first connector body,
FIG. 4 schematically shows the cross section of the first connector
body taken along the line 44 in FIG. 3;
FIG. 5 is a schematic top view of the second connector body,
FIG. 6 schematically shows the cross section of the second
connector body taken along line 6--6 in FIG. 5;
FIG. 7 illustrates the second connector body which is combined with
a plug assembly,
FIG. 8 illustrates the manner of connecting the second connector
body to the first connector body,
FIG. 9 illustrates the first connector body to which the second
connector body (not seen) is connected; and
FIG. 10 illustrates the manner of oblique connection of the first
and second connector elements in prior art connector.
DETAILED DESCRIPTION OF THE INVENTION
The connector of the present invention is comprised of a first
connector body 20 (a receptacle side connector element) and a
second connector body 40 (a plug side connector element).
As seen from FIGS. 1 and 2, the first and second connector bodies
20 and 40 comprise respectively a relatively flat box shape shell
22 and 42 made of a metal and include therein a plurality of pins
or elongated electrodes, which are collectively referred to by the
reference numerals 24 and 44 respectively, and an insulating
material (not shown) is filled therein so as to positionally secure
the pins 24 and 44.
The shell 22 of the first connector body 20 comprises, as best seen
from FIG. 4, a top shell plate 22A and a bottom shell plate 22B as
well as side shell plates 22C, thus forming a box shape that has a
predetermined depth 22D (see FIG. 3) that extends from the front
edge 20A to the rear edge 20B of the first connector body 20. The
pins 24 of the first connector body 20 are arranged parallel to the
direction of the depth 22D.
The shell 22 of the first connector 20 is formed in its top shell
plate 22A with engagement projections 30. Each of the projections
30 is formed by cutting the top shell plate 22A in an angled C
shape, and the resulting tongue pieces 22E are bent inward toward
the interior of the shell 22. The tongue pieces 22E are in the
shape of elongated parts of the shell 22 that extend in the
direction of the depth 22D of the first connector body 20, and they
are parallel to the side shell plates 22C of the first connector
body 20 or to the side edges 22A' of the top shell plate 22A.
The tongue pieces 22E are bent at locations of distance 22W from
the side shell plates 22C or from the side edges 22A' of the first
connector body 20 to make the engagement projections 30. The
engagement projections 30 are provided with a space of a distance L
apart from the front edge 20A of the first connector body 20. In
other words, the front ends 32 of the engagement projections 32 are
spaced apart from the front edge 20A of the first connector body
20. The engagement projections 30 have a length 30L which is, in
the shown embodiment, about two third the depth 22D of the first
connector body 20.
On the other hand, the shell 42 of the second connector body 40
comprises, as best seen from FIG. 6, a top shell plate 42A and a
bottom .[.shall.]. .Iadd.shell .Iaddend.plate 42B as well as side
shell plates 42C, thus forming a box shape with a predetermined
depth 42D (see FIG. 6) that extends from the front edge 40A to the
rear edge 40B of the second connector body 40. The overall size of
the shell 42 of the second connector 42 is slightly smaller than
the shell 22 of the first connector body 20 so that the second
connector body 40 is fitted in the first connector body 20 from the
first side of the first connector body 20. The pins 44 of the
second connector body 40 are arranged so be parallel to the
direction of the depth 42D.
The shell 42 of the second connector body 40 is formed in its top
shell plate 42A with engagement slits 50. Each of the engagement
slits 50 is formed by cutting away parts of the top shell plate 42A
linearly so that the engagement slits 50 are parallel to and
adjacent to the side plates 42C or to side edges 42A' of the top
shell plate 42A. An alternate construction would be to mold the
slits 50 into the shell 42 when the shell 42 is made. The
engagement slits 50 are provided so as to extend in the direction
of depth 42D of the shell 42 of the second connector body 40. In
other words, the front end ends 52 of the engagement slits 50 are
on the front edge 40A of the second connector body 40. The
engagement slits 50 have a length 50L which is, in the shown
embodiment, about two thirds of the depth 42D of the second
connector body 40 and is slightly larger in length than the
engagement projections 30 of the first connector body 20.
The engagement slits 50 are opened at locations of distance 42W
from the side shell plates 42C or from the side edges 42A' of the
top shell plate 42A of the second connector body 40, the distance
42W being substantially the same as the distance 22W of the
engagement projections 30 of the first connector body 20. Thus, the
engagement slits 50 positionally correspond to the engagement
projections 30 of the first connector body 20. The width W of the
engagement slits 50 is substantially the same as (or slightly
larger than) the thickness of the tongue pieces 22E (engagement
projections 30) which is the thickness of the metal material of the
shell 22 of the first connector body 20.
The reference numerals 60 shown in FIG. 2 are raised springy
holders formed by notching the top shell plate 42A of the second
connector body 40 and raised outwardly.
The first and second connector bodies 20 and 40 structured as
described above are connected by way of mating together at the
front ends of the shells 22 and 42.
More specifically, as shown in FIG. 7, the second connector body
40, which is attached at its rear edge 40B to, typically, a plug
assembly 60 that is connected to, for instance, an electrical cable
(not shown), is held by hand, and then is brought to the vicinity
of the first connector body 20 which is installed in a casing body
of, for instance, a PDA (not shown).
The front edge 40A of the second connector body 40, which is a plug
side connector element, is set so as to face the front edge 20A of
the first connector body 20, which is a receptacle side connector
element, so that the first and second connector bodies 20 and 40
are aligned in the direction of the depth thereof (which brings an
alignment of the pins 24 and 44 installed in such connector bodies
20 and 40). In this positioning, since the distances 22W and 42W of
the first and second connector bodies 20 and 40 are substantially
equal, the engagement projections 30 of the first connector body 20
and the engagement slits 50 of the second connector body 40 are
also aligned on imaginary straight lines.
Then, the second connector body 40 is pushed into the first
connector body 20 as shown by arrow in FIG. 8. During the initial
pushing movement, the outer surfaces of the shell 42 of the second
connector body 40 are guided by the inner surfaces of the shells 22
of the first connector 20. After advancing the distance L which is
the distance from the front edge 20A to the front ends 32 of the
engagement projections 30 in the first connector body 20, the
engagement slits 50 of the second connector body 40 come into
engagement with the engagement projections 30 of the first
connector body 20. As a result, the sliding movement of the second
connector body 40 in the depth 22D of and toward the rear edge 20B
of the first connector body 20 is guided by the engagement
projections 30. The second connector body 40 is thus pushed into
the first connector body 20 straight with the pins inside both
connector bodies aligned straight as well and connected to the
first connector body 20 (see FIG. 9, in which the second connector
body 40 is unseen since it is inside the first connector body 20).
The second connector body 40 is held inside the first connector
body 20 by the raised springy holders 60 that press against the
inside surface of the top shell plate 22A of the first connector
body 20.
The width W of each engagement slit 50 is substantially the same as
(or slightly larger than) the thickness of the engagement
projection 30, and thus the engagement projections 30 have
substantially no space for play in the direction perpendicular to
the direction of the length of the engagement slits 50 or to the
direction of the connecting direction of the first and second
connector bodies 20 and 40. Accordingly, the engagement slits 50 of
the second connector body 40 make no lateral movements during the
sliding movement, keeping the straight alignment obtained by the
engaged engagement projections 30 and engagement slits 50.
As a result, even when the second connector body 40 is slanted with
reference to the first connector body 20 during the initial
connecting stage, such a slanted positional relationship is
automatically corrected to a straight relationship as the second
connector body 40 is pushed into deep in the first connector body
20, and a snug and secure engagement of the first and second
connector bodies 20 and 40 is accomplished, and pins 24 and 44 of
the first and second connector bodies 20 and 40 are connected
properly. The engagement projections 30 and the engagement slits 50
are formed near the side edges 22A' and 42A' of the first and
second connector bodies 20 and 40, respectively; accordingly, the
connection of the connector bodies 20 and 40 can be made in a
stable fashion, and a separation of the connected connecting bodies
can be made easily.
* * * * *
References