Note: Descriptions are shown in the official language in which they were submitted.
8 7
7~J~ JI ~e~ , *~ c~ l .icc~l t~
an~ ri~ .rl. y tc, an e.1.ec:t,ri.c.l1 t e.Lmi.na.l :Eor ma-ti.~ct w:i.t.h
a :~:.lat t..~ ;r~ le l.e:.ln~ l and ha~riry a receptac:Le po.cl,.ion
r~o,n,-;:L :i..~l.ng a ba~.~e ajld a pair of opposc~d ,si.de walls
5 l~psi ~ n(~ 3 f~ m t:he base, f.ree e~ e pnrtl.ons of tht~ E;:icl.e
a.1.:1.5 bein~; L:urne.tl.- i.n over t..hQ ~.~ase where.~.~y the ~.)ase, s;.de
wa]19 .-~nd ~ ee e~ Je por tions toyet-her de.~ e a pa-.sage, t o
rece1ve -,ron~ one end a flat t,ab l-na:le tc:rminal.
]:n }3ri.t ish ~r. ent Speci:Fi.c.t-tlon. 1;lo.. 1~ 3751 trl~re :is
10 descr~ ed such a te.YIl;:inal. which has the ac'lv;int.--~les t:hat-.
W]-le`ll mated W:' th a male tab i.t becomes loc}ced l:her:eto ac3a:insL
acc.iaent~t]. di.scc~nrlect:i..on, hut ~hich is provi.ded ~.~..it'n a
~ t:r!~,r~-tl re l ea5e r.l~ml~ex }~y operat-ion o~ which the ] c,c~inc~
can . ~,Q~ rele.ise~ hen recluired to allow for disconl~ect:i on ~ -
L5 Xn pcirt:ic~ ar, ti e, r eceptacle poLtion o:E t he t.er~ni.t.,21 has
an i.n ,.e~ cll ly f o1-rned. tOIlcJue ex tending froln t.he ta.~--er!t~y
~nd of. t;he ~a~e~ al~d w:ithin t-he :recept.~cle pc rtion, tl,e
tor f~e ha c3 a prole~-c:l.on arranyed to engage in a hol2 in
n!aLe ta~ w~en Itared with the te:rminal to ~ro-~.Jide ~he
lockiny, a ~ree enc7. portion of the torlgue projecting away
' from ~he base to ~rovide tl-le release membex, d~presc:io.rl of
ti~e relca~e meml~er towards the base sel^~inrJ to re1.e;lse the
project:ion on l-,}~e ,::ongl,le-~ f-rom t.he hole in the rnale tab ar.d
', t~nll~ ;3,], I.OT.17 cl~Lsi-071ner~t,io~
~5 Su(h ~;:noT.~Tn electri.aa1 terminal.. c; i~a~e achie~ed
con.si~exclbl~ ço~nerc:ia:L success t-~lrouglloltt the worl~ since
ti~ ' we~':i.n~ 7.c~ 0~ -e~rs a~o~
.. j .
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~ I71~8~
~ 3~,i^7~ ;. scil~?~ ..LI.~ u]tit~s ilclVr~ ~e~n ~nc~ nt:e~ a
w~len t'~ te~i,n:,.n-ils ,,re matl?d wltll male tac~s n{)t proYT.i.ded
-~}~ (Jl]-~ s~rv.i.n~ li E i.~ls~ti.c)l~r~:E th~ .Q t~)~
intn 'l-ie r~?cepl;;-l~le~ pol-tion o the te~rmi.~ l.. Many male tabs
are fcrrle?7 ii~ h shoulcle:r.s wili.c~h en-3a~3e ~.he s:i.de ~ s c~f
t.he rece~t~c7e porti.orl nn Irlati.ng of the male tab Wit:].l a
_errninal as ~escr:i~ed, tllis eng~-lcr2men-'- servincl tc l:im-lt
ertioll of the male tab into the receL,-l:acle por tion, and
~ th~l:-. pre~e~{l L ~la~nag2 to ;:he rece.ptacle porl:ioïl, an~.l i3~
; 1~ paxticu~Lar the ' OncJue ancl release mcmbex thQreof ~ If a m;l:Le
tab withc,ut EUCi- shoulde:l^s i.s u.;3ed therl :it i s ~oss i.ble or
the mclle ta~J tn be over in.serted into the recept,lcle portior
sllc:h that: tl-e ] a.clillcJ encl of the male tah ngages and bends
the rei ease 3nelil1?e:r l)ac]i to~7ards alignmelL-t with t,he r~7nainder
1~ Q t:'he tonglle ~hus causing l~)erini~lnent danla~Je to the release
rile,nbe~ and ]-e;~ldcex :lTlg t-he termi.na]. useless .
Acc:ordins to thi s in-vent::ion, in an electrical
t:errnina:L as sc~t out: a~ve t}~e rel~ase memher ~ s formec~ with
a prnjecl: i on directed tto~Jards the tab ent,ry end or the
reCePt,aC1e POrt:;On and POSitiOned SUCh ttlat the 1eaCt1ng end
of -1 mal?- tab heing 3'.iateC1 W:ith t~e termil1a1 Wi11. engage the
' reLeaSe mel~er l:et-~e-~l1 the ro~L o~f the ' onylle and t}3e
~L0jCeCti0n~ the ~ OjeCtjOI1 SerVj.ng CC) PreVent m0VemeI1t: Of
the l fee en~ OL i,he mclle ta~ a10r1Y the re1e~l~Se member
q5 t0W~rd5 the f~ee en~ ~.hel'-eOF and -t~US 1imit i11Ser!:iOn Of
the J~ 1e tah int0 t1Ie re~eP;~aC~1e Prtin~
ThUS, in t1~e t:er.ri~:ina1 C;; th.iS i~.Ve11Ci0n 0Ver~
,
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3 d71~87
:in~-,r-~^tit-~]1 o:E a r.~.1e ta1~ i.nt.o the xrce1?tclc::Le pc,rtion .is
pre.ven~ccl hy en-Jr,1yemel1t ]~r,t..wec~l t;he .~:~ee end of the ma.l.e
tab a1ld l_he p..ojec~ti.o1l on t~ e l~e~lease ~ m~er! si.nce r'or
inse~,-t:ic,-n oi' the male t.a~j heyonc'~ this po:int it is nec~essal-
~~or the f~re end of the male ta7~ to pas5 along t'ra~ release
n~ember t-owa~(1s the :~'rere end the:reof and ~uch mo~enlent i.s
p.reve1lted hy the~ projc-~ctlon on the xel-~ase member. Th~
release melnber cannot t,herefore be bent and da~nac,Jed by
over i.nsr.~rt:.ion of tne .~ale tal~, a1-lt~l tl1e -t.erminal can
succcss~'u~ be ~sed wi-tllnlale tabs with or wit11out.
sertion~limit:ing shou]ders as discussed ab~-i?e.
~ n electrical termil1al accordil-lg Lo thi.s in~Te,11tio11
wi.ll now be lescribed hy way of exa1nple with refer-ncr to
the drawi1l~3s, in whic~
Figu.1:e l is a top ~l an ~:i.ew of the -t.erminal;
F'igure 2 ls a sectiona.l vie~? on the line ~ II i.n
~igure i;
~ ure 3 is an underr1fath plan view of -the
terminal;
Fi~ure 4 is ~'1 vi,ew in the direction of the arrow IV
in Figure l; al~c1
Fi~ure 5 5hoWS tlle receptac1e portion of t}1e
terïlli.nal ~?ith a 111ale ta'b l~ated therewlth~
The ter~.1i.nal t~ be descri.bed i5 has.i.callY c~-f a well
~5 kno-~ rpe anc1 ~ill not t.lrleref~re L~e descr:i~ed ir-l ~reat
deta:il..
The ~erminal is f'Gr matln~ w'r.il a f.lca'. ~.a~)lt1a.le
terloi~a~ 0 ('l~i.g~ e S) o~ corl~ent:ic~na:L type ~iavlng a hol,e.
101 the.rei n, a1ld is stalnped ancl. :Eonned i'roln s~Jeet: metal to
cornp.r. :ise a r eceptclcle portior. 1 :Eor receiv1n~ Lhe ma:l e t a
100, and a ~ e connec tion porLion 2 o ~now7n IorIn and
S colnpri.C,ing i f:l.rst ~:'erl-ule 3 .~or crimping about t,he
colldllct~. ve coxe of an insu1clted wire and a se~cond i:'errul.e 4'
i:or crimpi,nc~ about the irlsu].at10n of -I:he wire, in kno~,~n
manner .
The rfec eptaclc-~ poxtlon 1. comprises a ha,se 5 and a
10 pair of opposed s:ide walls 6 upstanding :Erom the }~ase 5r
:Eree edge portion~ 7 of the side wa'~ ls 6 bein~ rol:l.ed in
over -the ~a c.;e S wherel-~y the base 5, sicle walls 6 ancl f ree
ed~e port:lons 7 tc-get.ller cléf ine a passaye to rece:ive i~rom
one etid. (le:Et.~lland end :in Figur2s 1 to 3) a f].at tal~ ~rale
:l 5 termina 1 ~100 in Fiyure 5 ) .
A -tongue 8 is stamped from the l~cise 5 and e~-tends
ax:ia'i 1~ from its rool: ~ att the tah~entJ-~7 end oi -t.he
rce~?t-aclc portion 1 rearward].~ wi.'.h.i.n the xeceptc.~.cle
portion 1, the tongue R havin~,r a lance pxojection 1~)
2Ci ~rranc3ed ,':o engaCJe i.n a hole ~1O:L in Figure 5~ :in a ma.Le
tal, when m.~-t~.d with the terminal to lock the m-ll e tab to
the termina.L and thus prevent acc:ldental. discc-nr~ect:i.c)n, as
de;,cribed more . ully in British Patent Specif icat~ on No O
3.~ 5~.751 .
r~'~.... e tor,~ue ~3 exte3,cl~: .rearwarclJ.y beyon3 tlle :rea,~ clrd
ends of tlle ree edge por~-.ions 7 and a :El-ee end por tion
the..reo~ i.c.. ~ he.JI berit to pro~e -'. awc~ rc.in the ~jase 5 to
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8 7
pro~7icle a re:Lc.~ase mf Illber :L1 by dcpresslon o:E which. to~ards
t.he. base 5 Iïle lance 10 c~n the tongue ~ can ~e released from
the hole in the male tab to allow disccnn--.ction aclain as
descri.becl :i.n B.rlti.sh Patent Spec:if.ication No. 1463751.
Ihf ~elease member 11 is formed ~ith a projecti.on 12
directecl towarcis the tab--entry end of the receptacl.e por-tion
1 and ~ositioned r as clearly show7rl in F:i.gure 5, such that
the lead.ing end o~ the male tab 100 bei.nc~ matect wi~h the
te~:min.ll en~ac3es the re1.ease me.rnb(r 11 between the root 9
o~ the t:oncjue ~ and tlle p.rojection 12~ The prOjeC-tiOJl 12
can be formed b~ a simple indentation in the release mf~mber
11, but :ls prererably formed with half-sheariny the material
of the release member 11 where~y a positive shoulcleL 13
facing the hac;e 5 of th receptacle porti.on 1 i.s for7lled on
the ~roject:ion 12.
Norma:l.l.y, and when a male tab 100 havillc~ insertion~
limiting slloulders is mated with the terminal -the leading
free end o~ the ma]e tab 100 will not eng~ye the re].ease
member 11 hut the male tab 100 wi.ll be inserted only until
the lance 10 OJI the tongue 8 engac3es in the hole 1.01 in the
male tab 100 as necessary to lock the term.inals together.
However, when ~. male tab 100 without. inserti.on-limitinc3
shoulders is m~ted wi.th the terminal lt is possible that the
male tab i(10 Wi:l.-L be over i7lserted such that the leacli.ng
25 free end tllereof engages the release menber 11, as shown in
Figure 5. Thus, the:release member: 11 must clC~ to li.mit
:i.nsel-tion of the ma:Le tah 100 and there :is in known
; ~ 6 ~
q ~ 7
tc-~rmir~als nc)t in acco:rdance Wi.tfl tllis :in-~entiGn~ the
possibil.it~ that the mal.e tab 100 wi].l continue to be
inserted, bendincJ t:l)e release membe:r 11 and thus damacJi.IIg
the te~minal and renderillg lt useless.
The l~ro-jection 1.2 oll the release member 11 of the
terminal of th:is invention ser~es to prevent such damage--
causiny ove-- irlsertion of the male tab 100. For the male
tab 100 to be further inserted beyond the position showrl i.n
Figure 5 it is necessclry for the free end of ;;he ma]e tah
100 to ride alon~ the release member 11 r aIld th' S is
pre~Tented b~ir engacJement o tlle free end of the male ..ab 100
with the projection 12 on the release memher ].:L, and in
particular 3.11 -the emboc1iJnel~t shown :in the drawings with tlle
shouldeL 13 provided b~ the projec~ion 12.
The termina] of this invention :is thus pro-tected from
damage caused by possib].e`Gver-;.nse.rtion of a malc tab into
the receptacle portiorl thereof.
Althoug]l in the embodiment descr.ibed abo~7e the tonyue
8 is stamped i~rom the base 5 of the receptacle portion 1, i.t
will be appreci.ated tha-t the tongue 8 can otherwise be
turne~-back from the tab-entr~ end of the base 5 as shown in
the terminal spec~ ically described in British Patent
Specifica-tion ~o. 1163651.
The t:erminal of this invention can be used in an
uninsulated condlt;on as shown in the drawi.n~s, or car
otllerwise be used in an insulating housing formed to
co-operat~.? with tile''release me:nber of the terminal to effect
8 7
re:Lea~e ~.f: th~ t:errn:in;~ 0171 a male tab rna~ed therewith,
a~ain ~ lescribed in ~:3riti~;h PaL-c-~t Specif:icat:ion. No.
1~ 637~1 .
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