CA1262194A - Sub-assembly for electrical apparatus and electrical apparatus including such a sub-assembly - Google Patents

Sub-assembly for electrical apparatus and electrical apparatus including such a sub-assembly

Info

Publication number
CA1262194A
CA1262194A CA000519631A CA519631A CA1262194A CA 1262194 A CA1262194 A CA 1262194A CA 000519631 A CA000519631 A CA 000519631A CA 519631 A CA519631 A CA 519631A CA 1262194 A CA1262194 A CA 1262194A
Authority
CA
Canada
Prior art keywords
sub
assembly
area
pushbuttons
apertures
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
Application number
CA000519631A
Other languages
French (fr)
Inventor
Michael C. Goatman
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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
Application filed by Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of CA1262194A publication Critical patent/CA1262194A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers
    • H04M1/02Constructional features of telephone sets

Abstract

ABSTRACT
A sub-assembly (20) is constructed to form part of a housing for electronic equipment and to he capable of carrying electronic components. The sub-assembly (20) comprises an injection moulded plastics body having an area (21) in which a regular array of apertures (22) are formed, pushbuttons (23) being mounted in each aperture of the regular array of apertures. The pushbuttons (23) are shaped and dimensioned so that they cover the whole of the first area (21), the gaps between the pushbuttons (23) being limited to those required to allow clearance for operation of individual pushbuttons (23). Some of the pushbuttons are replaced by cover plates (24, 25) which are mounted in appropriate apertures of the array of apertures. The pushbuttons (23) operate on dome shape elastomeric switching elements (45) arranged between the pushbutton plungers (43) and the printed circuit hoard (40). The domes have an electrically conductive portion which bridges conductive tracks on the printed circuit board when the corresponding pushbutton is depressed. The sub-assembly (20) further comprises a second area (31) in which a single aperture (32) is provided which covers a major portion of the second area (31).

Description

~EP 23 '86 11:~0 PHILIPS P~rENTS P.2 PH~3~21~D

DII~CR~PT~0111 ~UB-ASSEM~I,y ~o~ E~eCTRI~AL kPPARATU8 AN~ ~LgCT~eAL APPARAl~
INCLUDINQ 8UCH ~ ~U~AS8~M~LY~
Th~ 1nvl~n~on r~l~t~ to ~ ~ub~s~ bly con~ruc~Qd to tor~
part o~ ~ hou~1n~ for ~lQ~tron;~ ~qu1p~n~ ~nd to b~ ~p~bl~ ot ~sPry~n~ el~6~ron14 co~pon~nto~ h~ ~u1~a~nbly ~on~plois1n~ an ~n~o~tlon mouldo~ pl~at1~ body h~ n~ ~ f~ t ~ a~ ~onatru~t~d to form part o~ tho ~t~rloP ~ur~aco o~ th~ houslln~.l Th2 ~nvun~10n ~urth~r r~ o ~laetr~oal ~ppar~tu~l ~n~ a ~n t~lephona 1n~rum~n~ ln~ud1n~ ch ~ ~ub-a~eomblY.
~r10u~ ~yp~ o~ c~r1c~ pp~ra1:u~ ~ro oon~trugt~ tn ~o~ular ~orm to aLLs~ 1I nu~b~P o1' ~Re1l~1e~ a,opropr13t# to ~ ~v~n ~ppl~o~lon ~o b~ proY1d~ 1n ~n ~e~no~1c~ m~nn~rt App~r~tl~s ~u~h a~ dae~ ~rmir~l~ or taL~phon~ ~natr~ nta n~y b~ pro~/1d~ 1n bo~le t~ ~orm or w~th ~ nu~brr o~ dl~terltn~ opt1on~a ~hile tho~ varlou~
optlon~ ~y b~ prov~dod by ~ddln~ ~t~nd~r~ h~od.~L~ ~o th~ b~
~I~p~r~tu~ th~ 0aY2~ ~h~ pPobl~ o~ ~h~ ph~
con~truc~lon o1~ th~ ~pp~P~u~ . ho~ to ~ll5~ ~or th~ v3ry1n~
qu~nt~ty o~ ~qu1pnlent ~o bo hou30d~. Thl~ c~n b~ l~¢h~w~d by h~vtn0 ~ custon~ ~J1~n~ hou~1ng ~or e~ch; varl~nt but sinGs th~ hou~ os ar~ fr~qu~ntly ~orml~d ~rom tni~ on Rauld-d pla~lt~Gs ~et10ns th~
~ool1n~ oo~ b~o~o h~h~ Qsp~c~ y ~nc~ ~In ~n~ro~31n~ nu~b~r o~
ol'f~r~d cpt~on~ n~ ~hl~ th~ qu~nt1ty o1' ~n~ ~n~ vers10n ~3 reduo~d.
2~ ~rm~n Pa~nt No. 1223~9 ~hoff~ u ta~aphon~ ln~trw~nt ~h10h ~o~pr1~ a ~n~rab~t3 a1~ ~o~uL~ wh~Gh ar~ 1n90rt~d ln 1~ b~ 'lon~
th~ upp~r ~urt~q~l ot ~h~ mo~ulo~ prov1d~n~ ~hl1 uppoP ~urf~ o~
~h~ hou~1n~l, Tho ~odul~ eomprli~ 1n~ hand~t modul~s~ L
~odul~, o~ltch ~o~ul~!~, lomp ~odulo~ h~lu nodul~ ~r~ ho~l~Y~r ~o ~ dl~r~nt ~thapo~ 0n~ a1~ h1ch ~noro~ h~9~ co~t o~
produ~g 1On~t ~ t 1~ an o~i~ce o~ ~he 1nv~n~1on to 6n~bl~ ~h~ productlon ~f ~u~-~o~lmbly wh~ch can b~ u~ to ~ornl p~rs o~ ~h~ hou~1n~ ~or Q~otr1oal ~pp~r~tu~ ~nd ~hlch u~o~ a ~lnql~ mould~n~ ~hloh ~n~ble~
36 ~ rtou~ tr10~ unctton~l to b~ 1noorpor~t ~ '.

SEP Z3 '~6 11:41 PHILIPS P~TENTS ' P.3
3~
Z PH~21 a~

~ h~ lnventlon prov~de~ a sub~ o~bly ~a ~t to~ h In th~
opm1ns p~ræ~r~ph ch~r~et~ri~sd ln th~lt th~ ~ub-~3~mbly ha~ a s~oond, ln~ærlor, ~ur~c~ llh~oh i~ prov1d~d ~lth pro~octlon~ ~or moun~ln~ ~ printl~d clrc~ boar~ ~n~ oo~prl~s ~n ~re~ hlch o reaul~r ~rray ot ~p~rtllr~ ar~ l~orm~d~ pu3h~utton~ b~n~ mou~tecl ~n e~oh up~r~ur~ o~ thi~ r~ul~r ~rr~y o~ ~p-r~ur~9 th~ bu~ton~ baln~
sh~p~d ~nd ~ n~10red 30 ~ha~ th~y c~v0r ~h~ ~holql o~ the ~1r~
~re ha ~p~ ba~e~n th~ button~ bcln0 l~ d to tho~ r~qu1red to ~ w ~ r~n~o for op~r~t~on of ~f~d1vldu~l bultton~
The r~ula~ ~lPr~y ol' ~3p~PtU~'o~ al~a~o th~ mount1r~ ~
pu~hbuttons ~n sny ~locta~ ltlon ~n tho ~r~ ~r~ Any po31tions ~n ~h~ch pu~hbu~:~ono ~ro not r~qu~r~d ¢an b~ 60v~r~ by blarlk pl~t~ ~hlch can b~ loG~ n th~ corr@~pondln~ ~p~rtuP~
On~ or mor~ pu-hbutt~n~ m~y ~ rltpl~c~d by on~ or ~or~ ~ov~r 15 pl~t~ ~h1ch aro ~ountacl 1n ~ppropr1~t~ ~p~rt4r~s ot th~ ~nr~y ot ~pertura~" W~an ~ ~ln~l~ puahbutton ~ ræploe~d,. ~hll ~ov~r pl~ta mlly comp~ d~my pu~hbutton.
Th~ pu~hbu~ton~ noay op~rl~t~ on do~ ~hepo~ 0l~tomor~a s~ ehtns Ql~on~ ~rr~n~d ~t~ n ~h~ pu~hbutton plun~Ps and th~
prtn~tl olr~ult bo~rd~ ~h~ doml~ havlno 19fl eLacl:rle~lly e~n~u~t1v~
port1on ~h1~h bP~ o~ conduet~vo tr~ekg ~n t~\~ pr~ne~d elrGul~
bol~rd ~hQn th~ eorr~spon~ln~ pu~hbutton ~ dllpr~o~ed.
Th~ 3r~a m~y ~ur~hl~r ~o~pr~ ur~h~r ~rl~s ot ~p~Ptur~
tor loGal:ln~ lndle~ vlr~o~ Th~ G~ n0 d~Y1e~ m~
29 eompr1a~ h~ !~oure~ ~ount0d on th~ prln~od ~lreu1t bo~rd ~nd ll~ht gu1~ loe~tDd ln ~ oorr~pon~ln~ ~ur~h~r~ ~p~rturs to bo v~3~blQ ~rom th~ ~ir~t sur~c~.
Th0 ~lub~as~o~bLy ~y tu~th~P ~or~pP~ ond ~r~ 1n ~h~eh -~n~l~ epertur0 l~ ~orr~d, ~h~ ~;n~ rtur~ tondtn~ SIV9- 1 ~0 m~or port1an ot ~h~ soeond ~r~-~
Tho sub~a~s~Mbly ~ay ba r~o~n~u~r ln pLIon ~n~ ~0y b~ cl~ld~by R ~hlrd ar~o ln th~ tor~ a~ ~ r~d~ wh1~h ~t~nd3 p~rpond~oul~r to ~h~ lon~or ~Yil o~ ~h~ r~et~ng~R aCro~ h~ ~ulL ~1deh o~ th~
r~ot~n~loO
33 Th~ ~lub~ mbly ~y ~urth~r co~pr~ o~ h and ~1tth aro~, 3~
3 PHB 33218~

each of which is in the form of a ridge extending perpendicwlar to the longer sides of the rectangle across the full width of the rectangle, the fourth and fifth areas forming respective ends of the rectangle. The fourth and fifth areas may comprise means for locating the printed circuit board. m e third area may comprise means for locating the printed circuit board. m e fourth and fifth areas may comprise or carry means for connecting the sub assembly to a further assembly to form a housing for electrical apparatus.
m e invention further provides a telephone instrumen-t com-prising such a sub-asse~bly and a base section to which the sub-assembly is connected.
In such a telephone instrument the first area may locate digit pushbuttons and a further sub,assembly which includes a display device may be located in the aperture of the second area.
Embcdiments of the invention will now be described, by way of example, with reference to the accompanying drawings, in which:-Figure l shows a plan view of an embodiment of a sub-assembly according to -the invention, Figure 2 is a cross-sectional elevation of the sub assembly shown in Figure l, the section being taken on line A-A, Figure 3 is an exploded, perspective view of a telephone instrument according to the in~ention, Figure 4 is a plan view of an embodiment of a telephone instrument similar to that shown in Figure 3, Figure 5 is a plan view of a further telephone instrument according to the invention, and Figure 6 shows a handset subrassembly s~itable for use in a telephone instrumRnt as shown in Figures 3, 4 and 5, and Figure 7 is a perspective ~iew of a further telephone instru-ment acoording to the in~ention.
Figure l shows a plan view of an embodiment of a sub,section according to the in~ention. The sub~section comprises a first pclrt 21 defining a matrix of apertures 22 for locating an array of pushbuttons 23. In this ~nstance the matrix of apertures 22 com-prises four columns and five rows. These numbers are arbitraryc~nd may ke chcmged depending on the application. In the embodiment shcwn in Figure l the pushbuttons 23 are arranged to have a minimum C~p 23 ' 86 11: 50 PHILIPS Pf~TENTS P . 2 LC:1~
4 P~a332~18s spa~n~ ~o ~h~t th~ro ~ m~r~ly su~lc~nt cl~ar~rlc~ b3t~00n thl~s~
~o ~llo~ ~nd~pl~ncl~nt op~r~t~on. Wh~n purhbuttonu ~r~l no~ r~l~u~r~d 1n ~vory poJ1~10n ~n tho m~tr1~ of apart~lr~ ~ov~r pl~ 25D 24 ur~ ~t~ o m~k ~ho~ pGrtt.ll`l!~l~ Z;2 wh~r~ J~ p~hb-~t~n ~a n~t 6 roqulred and prov1d~ a ~n~sh0d 3ur~e~ ~o eh~ ~op ~t ~ho l~ phon~
1n~trum~n~, Th~ p~h~uet~ nd oov~r pl~ y b~ bl4hk or mo~
c~rry l~nd~ ~h10h m~y b~ produeod ~n ~ny &om~n~ont ~h14nO for QX~illp~ pr~tln@ or ~n~r~vln~aa Th~ ~r~ p~r~ nd ~ onel par~ 31 ~rg ~op~rated by ~
lD rld~ 2~ and 1~o ~ur~hsr rldg~ ~7 ~nd 2~ ormo~ ~e e~¢h ~nd o1 1;he i~ub~Gtlon Jlnd d~ no tho oxt~n~s o1' ~h~ ~1r~t p~rt 21 Qnd ~s~ond pdrt ~11. Th~ ~lr~t p~rt 21 13 11l80 provldo~ ~th ~ nu~bor o~ dl~piay devlooo ~ uhlch ar~ loc~ nsx1: to pu~hbul:ton po~lon~ ~dj~Gon~ ~o th0 rld~ 2~ ~nd ~7g lj The !~conb pArt 31 o~ ~h~ ~ub-s~tlon 20 d~i1'1n~ ~n ~p~rtu 32 ~h~ch 2xtend4 ov~ a m~jor por~ofl o~ ~h~ ~sond p~rt 31~ Th~
aplsrtur~ ~2 1~ pPovld~d w~th four pro~Qct~on~ 3~ 1:or oo~opo~tl~n lth ~prtn~ b~rb~ to loca~ eoY~r pl~tl~ or E~d~lon~l sub~ e~bly ;n ~h~ ~poctur~ 32~ Th~ ~p3rtur~ 32 ~x~nd~ r th~
2~ m2~r por~lon o1~ ~ho 8~cand p~rt to 3l~0~ ~cc~ o th~ un~ra~
o~ ~ ~ub~ bLy" wh~n provld~d, ~o ~n~blo ~l~o~r~c~L conR~cttor, be~2n the ~lub~so~nbly 3nd ~ pr1nt~d c~rcul~ ~o~r~ ~o b~ ~d~
~lthout lneonv~n~n~.
Fl~ure 2 19 ~ ero~ls~oet1e~nl~L vl~Y ~ th~ subo~oot~on on 1~1no 23 A-A o~ Fl~ur~ tl, ThQ hub-s~otlon 2a 1~ ~unt~d on ~ pl~nl:od clrcu1~ bo~rd ~0 by mo~ml ot b~rbY 4~ ~h~ch pro~Gt thl~o~h co~op~r~e~ng ~porturoa ~not sho~n~ 1n th~ pr1ne~d clr~Ltt bo~rd ~n. Th~ pu~h~ut~on ~op~ 2~ ~r~ Locat~ Sh~ p~P~ur~ 22 ~y m~na of plu~3 4Z ~h1ch aro 3 l'r~ce~on t1t ~1thln ~h~ holla~ ~t~m 30 4~ 0~ th~ pu~hbutt~n tops 23 and ~h~h ~n~sa ~g~lnst ~houldQr~ 4 of th~ ~p~rturo~ ~2 ~o prov~nt th~ p~hbu~orl ~op~ 23 bs~n0 d~la~d ~ror~ th~l apsr~ur~3. Th~ pr1ntod ~1rou1~ bo~rd ~hot~n brok~n ln th~ ral~10n o~ ~h~ plu~ 42 ~r~Ly to onabl~ thll ~tt1n~ o~ th~ p~l~hbut~ono to bQ el~rly ~d~e~ n~ 1n pr~to~ ~
35 ~h~ pr~nt~d ~l~r¢u~t bo~rd axt~nds cont~nu~uily, Th~ pluQ 42 SEP 23 '~16 ll:Sl PHILIP5 PRTEI'IT5 P,3 19 b1~ss~ld ~aln8t th~ ~houlclor 44 ~y 0e~n~ o1~ ~n al~ton~r1c do~
45 whloh 1noludo~ ~ conduc~v~ p1ll ~h1ch ~hort c~r¢u~t~ tPa~k~ on tho pr~ntod o1~oult bo~rd ~h~n ~h~ pu~hbut~on ~ npro~ . On~y one dom~ hown ~or r~ n~ o~ ol~r1ty bu~ ~Ll Op~ t~
pushbut~on~ ~r~t prov~d~d w1~h such doml~. Th~ ~ov~r pl~t~ 2~ i~
loo~t~d by m~n~ a~ b~rbs b,r ~hl~h ~nçla~ b~h~nd 1;h~ ~houLd~r~ 44 of ~pproprl~ 3p~r~urlt~ 22~ l~h~ ¢oY~r pl~t~ 25 1~,f o~ eourD~"
loo~t~d ~n th~ e m~nner~ Th~ pushbu~ton top~ ar~ 4qu~rs ~n~
h~Ye ~ t ~urtac~ hhtch 50nto~n5 a ~pr~sslon ~0 ~h1~h o~t~n~
ov~r ~ub~n~12lly h~l~ th~ top ~ur~a~a ~P~fl. ~ ¢0n b~ ~e~n ~ro~
I'l~ur~ 4 th~l p~sh~ue~on ~Op~l ~3 e~n ~ ountod ~ h ~h~ d~pro~laton 1n d1ffor~nt or~en~tlong ~he purpo~ o1' 3~h~0h ~ll b~ d~r1b~d h~P~n~l~tor,.
Th~ d1~pl~y dov~e3 30 Go~Pr1~ a ~urfsc~ ~oun~ed liqh~
19 q~1ttlng dlodl! 4~ ~nd ~ ht ~u~d~ 30, for ~x~pl~ A p~r~p~ rod~
~h~ch la 1n son~a~t w~th ~h~ h~ e~ 0 sur~a~* of thq d~od~ 4 ~t on~ ~n~ and ~hoso o~hf~r ~nd prsv1d~ ~h~ v~ual. d1~plAy at tho top 3ur1'~c~ of th~ app~r~l:u~n F~ur~ ~ sho~ an ~p~odl~d p~r~p~ot~v~ v~o~ o~ ~ tolephon 2G lnstrument ~ ~n ~llug~r4~ton o~ otr~c~l ~ppsr~u~ u~ th~
~ub-~ctlon o~ F~ur~ 1 snd Z ~ p3lr~ o~ ~h~ oon~truet10n to ~orm a hous1n~ ~or th~ ~pp~P~u~l. Th~ tel~phon~ 1n~tru~l~nt h~ ~
hou~lng compr~s~ng ~ 1"1r~t sect~on 5~ 1n ~he form o~ ~ b~o ~c~10n ~n~ ~ s~con~ soct1on ~2 1n tho hrr~l ot ~ top ~e~lon. rh~ top t~an ~2 1~ con~tru~d ~r~ ~our ~ub-r0et~0m S~54~55 and S~
~U~"'8~1~t~0n!11 5~SS ~nt 5~ b~ln9 ~d~nt~c~l to e~ch oth~P and o~ th~
for~ ~hown i~ u~ n~ 2. Th~ sub~o~10n 53 ~'d1f~or~nt ~ro~ tha othal~ ~u~-~Qe~t~on~ d~31~n~d to lo¢~o ~ h~nch~t sr. Dcp~nd1n~a ~m th~ h~l L;t1~o to b~ pro~ e~ by ~h~ ~laphon~
30 ~nl~t~ n~ ~ ~re~t~lr ~r L~ sr nu~b*l~ o~ ~ho ~u~ et~on~ 54, ~5 and Sb ar~ proYidsd ~h~l~ only on~ ~ub-o~c~10n 53 p~r 1n~tru~qnt ~-uEl~d~ It ~ t0rna~1v~Ly~ poa~1bl~ to d1~p~n~ h tho sub~ tlon ~ ~n~ r~unt ~h~l h~ t S~ on o hook ~lt~h pro~otin~
~ th~ ~do o~ ~h~ bao~ ~6tton S1 ~ ho~n 1n F1~UP~ 70 3~ .Tho sub-~oelor~ n~ 5b o~rrr ~ a~Lo~-d Drr~n~ nt " "''~''''.

'-P 23 '86 11:56 PHILIPS Pf~TENTS P.l 6 ~H1~3218~

pu~hbutton~ sa, ~nd ~ovor pl~s 59 ~nd ~0 whlch moy b~ bl~nk or may b~ prov~dod ~th le~nd~. A ~ur~h~r ~ub~oeHb~y 61 c~rry1n~
pu~hbu~ons ~2 ond ~ d1~pl~y dev~c~ 63 ~ mount~ on th~?
sub-s~ on~ 54,SS ~n~ 5~ by n)lt~n~ o~ b~rbl~ b5 ~hl6h en~s~ w~th 9 ~h~ ap~rture~ 64 1n ~h~ ~ub~ec~10n~.
Th~ r~13r o~ th~ ~9~ c~on 51 l~ pr~v1d~d ~1eh ~ plur3ll~y of cut o~t~ 6~ throu~h ~h~ch cabl~ ~ntry m~y ~o ll?tfect~d. Th~ eu~
out~ May h~v~ p~u~ ~nd/or llock~ moun~d ln th~RI or b~ ~ov~red by bl~nk~n~ pl~lte~ d~p~nd1n~ on cflblQ ontry ro~u1r~m~nt~ ~ql~phon~
lG ~nd d~t~ c1rcu1~a and componQn~l may b~ r~ount~ on prin~;~ e1rcu~
bo~rds loc~t0d by pro~ct1Onqs ~9.
Th~ ~ub sQc~1on~ S4,5~,g6 ~ro ~ oh~ ~o th~ ~îr~t or b~
~o~ion 1 by me~8 ot ~rews p~s~n~ ~hrou~h b~s~ nd p1ll~r~
~7 ~FiguP~ ~9 în th~ b~ia ~ct10n 1nto thr~ d 1m~rt~ ~no~ sho~n) 1~ loc~ted 1n eh~ r~g~ 26 ~nd 27 of ~h~ ~ub s~ct10na. Var~lou~
addi~onal ol~ ~le~rn~1Ye mo~hod~ o~ conlloc~ th~ b~ls~ llnd tup s~et10n~ lcl bQ r3~d~r appar~nt ~o tho~e sklll~d ~n th~ ~rt"
~or ~mpLo hori~ontxlly e~ n~1n~ luo~l coul~ b~ ~orma~ on th~
rld~Q 2~ ~hl~h ~n~a~ ~n Ellot~ prov~cled ln th~ r~P ~ eh~ b~o 20 ~Itc~lsn. Al~ern~tl~/~ly o~hea1v~:coul~ b~ UBOdl" p~rtlGulsrly ~lth s1rnplo ~ns~rum~nt3 ~h~r~ ~ r~pl~eM~nt rath~r th~n r~pslr phllosophy ~a~ ~plo)~d.
~ hus ~ t~lophon~ 1n~trumQnt r~n~u o~r~no 9 Y~rle~ey 0 d1f~r~n~ tl~ e&n b~ oonlatructQd u~ng on-l or mare 25 ~ub-3-~tlonll a~ d~crlb~d ~lth retePonc~ to F~ures 1 an~ ~. SY
~rr~n~ln~ th~ pul~hbu~ono ~o eov~l~'th~ ~p~co~ ~ot~n th~ ~p~r~ur~
o~ ~h~ arr~y and by ~ount1n~ ¢ov~r pl3tl~3 ln th~ ~p~rtur~s uh~r~ no pu~hbul:~on~ ~r~ r2qulr0d 1~ ~1n~sh~d, vl~u~lly ~r~c~v~, hou~lno ~n b~ prov1dlld usln~ ~I m~n'lMu~ numb~r o~ b~1G p-rto..
3~ t1~Ar~ 4 ~ho~a ~ plon Y~ o- a ~a~phon~ ~n~tru~nt ~ r ~o th~t shol~n ~n Fl~ur~ ~. Th~ tQ~phon- ~n3tru~on~ ah~n 1n F1~ur0 4 co~pr~ h~nd~e 107 ~ount~d ln ~ h~nd~ u~e~lon n~ ~h~d~ ~n~n~ l sub-~o~lon~ tOS~ 10~ ~nd 10~ ~hleh c~rry a plural1ty o1` pu~hbut~ong 108~ ~ ~oY~r pl~t~ 110 ha~ sp~o~s 120 ~5 ~or wrltlng ~ddr~ a~ ~or r~p~rtory d1~ n~ or caLL tr~n~r ~nd Sl:P 23 'E~6 11:57 PHILIPS PRTENTS P.2 7 ~H~33Z1 83 ~ndicator di~v1~o~ 121 ~or lndleat1n~ tho ~d~r~ operll~od by ~
pushbutton depr~jon or of u r~co1vqd c~l~o 1~ bl~nk ~ov~r pl~to 1229 flnd ~ ~ur~hor ~ub-3ss~m~ly 111 ¢~rry1n~ furthQr pu~hbut~n~
192 ~nd ~ dtsplay u~ Th~ pu~hbut~on~ 108 ~rG o~ th~ 3~1~8 ~orm 1l~ th~ pu~hbutton~ 23 and the~ ~wo column~ imme~1~t~ly eO th~
L~f~ ~f ~h~ covQr p~t~ 110 h~vo th~lr top~ ~urnod ~hrouoh 180 w1~h ~e~p~o~ to o~:h oth~r. Th1s en~bl~3 ~h~ ~d~r~ r1tten on - th~ oov~r pl~t~ ~o b~ ~p~ood ~t h~lf th~ ~p~c~n~ oll ~ho p-l~hbut~Qn~
~hlch rPLo~ to ~ho~ oddr0~ th~ dopr~ lona S0 in~1cat1n~ th~
~ddr~ o¢la~t~d ~ h ~ p~rtlcul~r pushbutton. A ~1~tl~r ~rran~mant 1~ u~ n th~ ts~o ~oltlmn~ t~ th~ r1~ht o~ ~h- ~ov~r pla1:~ 1'tO for th~ ~m~ purpas~., Th~ tel~phono ~n~rum0n1: dæ~or~b~d u~eh rof~r~nc~ to ~l~ur~ 4 ss6Q~ llu~r~t~d ~n P~ur~ ~ and ~ 3 th~
1~ ~ub-a~ctlon h~l lllu~tr~d in ~1~ure~ n~ Z., Fl~ur~ ~ thow~ ~ pl.~n vle~ o1' a e@l~phOnfl ~ngtrum~nt h~v~nq ~aw~ clllel~ th~n th3t sh~n 1n F~gur~ 4. Th~ ln3trum~nt: ~ho~n In Ft~ur~ ~I compr1~e~ ~ h~nd~ ¢~on ~ carry~n~ ~ h~nd~t 207 and t~o ld~ntlc3l sub-~ect10n~ 2~4 3n~ 205~ Th~ ~;rs~ ~ub~ e~0n 204 c~rr~e ~n 3rr~y of push~ on~ 2Q~ wh1~s ~ho s~cond ~ub-~ct10n e~rP~ numb~r o~ puah~LIt~on~ 208, ~ cov~ plat~ a10 ~h~oh h~a 3pll~0011 for 0ddr~a~ 220 ~nd lnd~c~tor6 22~ pl~ln ~p~a~r 2~20 Th~ t~L~phon~ ln~ltl~u~onl: sho~n 1n 1~3ur~ S ~ oon~tructRd ~ro~
th~ ~iam~ sub~ot10n~ ~r th~t ~h~wn ln F1~ur~ 4.
z~ Fl~uro IS ~ho~ ~ pl~n v~ ot ~ h~nds~ ub~ on au1tabl~ ~
for u~ ln th~ ~ol~phon- 1n~trum~nt~ ~Ihob~n ln r1~ur~ll 3, ~ ~n~ 5,.
Th~ hand~t ~ub ~lod~10n 3~ co~pr1~e~ ~I r~ct~n~ul~r ,~l~t~ 304 pro~1de~ ~1th ts~o r~qo~ WS 4n~ ~06. Tho r~o~ 05 an~ 30 ~r~ ~p~c~d ~n~ d1~n~10n~ o r~c~lvo th~- mou~h o~ ~ar p1~ o1' th~ t~l~phon~ h~ndsot~ Thl~ ~n~tPuR~nt~ ~ho~ ~r~ d~ n~ for d-3k top mount~no ~n~ th~ h~nd~ k~pt ~r~ po~lt10n by ~r~ tyO
~lo~ov~rO 1~ ~alL r~loun~lna ~a~ d~lr~d ~1th t~ h~nd~ y1n~
~ub~tan~ ly wr~ lly rnth~P th~n hor1~ont~lly ~hl~ ~ould b~
~h~ov~:l hy ~ppropr1~ d~ n o~ ~h~ ~hap~ o~ th~ mouth ~r l~r 33 plo~o ~nd tho r~a~ " Tho r~c~# ~n5 l. prov1~d wl~h an '`-'P 23 '86 11: 58 PHILIPS PRTENTS P. 3 P~3321~

~p~rturq 307 throu9h wh~eh ~ho hook ~WltGh pro~a~c~9 30 thet 1t ~n b~ opor~tod by r~pl~n~ th~ h2nds~e on th~ ~ub ~t1on.
F10ur~ ~ ~how~ a p~r~poc~1v~ v~w o~ a t~phon~ ~n~ru00nt ~h~eh co~prlsa~ a ~a~ ~gc~on ~01, ~ bo~ ot~on 702O ~nd ~ hllnd 80t 703 wh1ch rRs~ts on ~ hoak ~w;~oh 7~., Th~ top ~t~on 701 eompr~es a ~ ge~or~ hown ln ~q~ur~ ~I snd a 0~ 1~ p~ovl~
w~l:h an ~I~rlly o~ pu~hbut~on~ 7US ~h~ eov~r th~ ~eon~ p~rt 31 o~
th~ aub-~c~on~ Th~ ~1rl~t p~r~ ~1 o~ th~ ~uboo~ctlon Ig eo~tore~
~y 3ub-a~m~ly wh~h co~pr19~ ovar pl~ 706 ~h~ch c~rrl~
19 t~o pu~hb~tton~ 707 and 70a ~ ~ dl~pl~y dwlc~ ~09.
Xf æ ba~ phon~ l~e r~qU~r~ ~h~n ~h~ oov~r pl~e~ 7011S
wlll no~ c~rry th~ pu~hbuteon~ or dl~pl2y d~ c~9 b~Jt ~Ry for ox~mpl~ c~ry ~ b~L ~nd~c~in~ thç ~ phon~ nur~b~rc ~ lon th~ ~rr~y of pu~hbu~on~ 705 ~Ill eomprl~ n pu~hb~tton~. th~
l6 \~ean~ Po~ On~ o~ ~h~ ~rr~y o~ ap~Ptur~ th~n b~lno co~t~P~d by cov~r plElt~ ~h1~h ~nay b~ 1~ormod ~y ~u~y pu~hbut~:on he~d~ 01' ~I-y b~ ~ sln~l~ p1o~o pl~ cov~rln~ tw~ or ~ora 0p~rturos, Conaoquontl~ e r~r,~ of co~pact t~lophorl~ ~n~tru~n~ o~tar1n0 ~ r~n~ o1' t~c~llt~ sush ~ ~ di~pl~y ~n~1cst~n~ th~ r 20 nsl~bor ~ d, pl~n s~ n~lL~n~ ~nd r~p~r~ory ~ ~ &~n b~
oon~ru~d u~1~a a w~-~oct~on ~uch ~ ~h~ gho~n ~n ~1~ur~ 1 and 2 as th~ top s~tion ol' th~ ~oual1l~ lto moun~ ~h~ v~rtou~ pu3hbutton ~nd coyQr pl~t~ ~o~ nfltlona r~qu1rqd.
Clo~r~y m~lny ~ rn~elv~ a~r~n~ n~ u~ln~ ~ ~ub~a~ot1On 23 ~xe~pll~1~d by that 3how~ ln Fl~u~ nd ~ G~n b~ ~on~tPuet-d, tha layou~ of ~ho cov~r pl~t~ and puahb~t~ono b~ v~r1~bl~ ~o ~v~ a ~ r~d ~h~ o ~f~et ~nd to p~o~ acco~ to ~h-f~c1ll~ prov~d. Th~- by ugin9 ~ ~ub~ elon prov~ h ro~ula~ 3rPay 0~ sp~rturo~ ~or ~oe~ln~ puRh~ut~o~ n~ ~y 30 ~Irran~1n~ th-~ button~ of ~33~n~ pu~hbut~on~ ~ covor tho li~Pl~
bol~ n ths 3d3acon~ ~p~rtur~ ln1~h~d llpp~ar~no~l c~n bc~ ~lu~n to s t~l~phon~ ~nstrunl~ h~lo ~llo~ ny d~1'f~r~ne opt10n~ to b0 o~f~rod u3lna ~h~ top ~ulr3l-ct~0n. Cla~rly wh~r~
isolllt~d pu~h~ut~onl~ ~rt not roqu~P~ ~or ~ p~rg~sulaP 1n~tru~lnt 9~ ~he ~ov~lr p~llt6~ h~lt ~oc~ n ~ou~ on9tr~e~d to h~Ya th~

SEP 23 '86 11:59 PIIILIPS PRTE~`ITS p,4 9 P~3~2
5~1M~ app~r~nc~ ~8 ~ pu~lhbut~:on ~op.
~ le~trie~ opplaratus o~h~r ~h~n t0lsphon~ lnRtrum~ntll ~4n b~
eun~truct~d us1n~ ~ ~ub~-itg~3~nbly 80~0rd~n~a lo tho 1nv~ntlon ~horev~r ~ var1~ty o~ ~uncttons mæy b~ r~qu1r~d ~o provl~Q 3 r4n~
5 of ~pp-r~tu~, Ex~m~ o~ ~uch ~pp~r~u~ lnclud~ p~r~on~l comput~r~O d3t9 ~rm~n~l~, c~loula~ors, r~d1O3.

ZO

a~

Claims (13)

THE EMBODIMENTS OF THE INVENTION IN WHICH AN EXCLUSIVE
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A sub-assembly constructed to form part of a housing for electronic equipment and to be capable of carrying electronic components, the sub-assembly comprising an injection moulded plastics body having a first surface constructed to form part of the exterior surface of the housing characterised in that the sub-assembly has a second, interior, surface which is provided with projections for mounting a printed circuit board and comprises an area in which a regular array of apertures are formed, pushbuttons being mounted in each aperture of the regular array of apertures, the buttons being shaped and dimensioned so that they cover the whole of the first area, the gaps between the buttons being limited to those required to allow clearance for operation of individual buttons.
2. A sub-assembly as claimed in Claim 1, in which one or more pushbuttons is/are replaced by one or more cover plates which are mounted in appropriate apertures of the array of apertures.
3. A sub-assembly as claimed in Claim 2, in which when a single pushbutton is replaced, the cover plate comprises a dummy pushbutton.
4. A sub-assembly as claimed in any of Claim 1, 2 or 3, in which the pushbuttons operate on dome shape elastomeric switching elements arranged between the pushbutton plungers and the printed circuit board, the domes having an electrically conductive portion which bridges conductive tracks on the printed circuit board when the corresponding pushbutton is depressed.
5. A sub-assembly as claimed in Claim 1, in which the area further comprises a further series of apertures for locating indicating devices.
6. A sub-assembly as claimed in Claim 5, in which the indicating devices comprise a light source mounted on the printed circuit board and a light guide located in a corresponding further aperture to be visible from the first surface.
7. A sub-assembly as claimed in Claim 1, in which the sub-assembly further comprises a second area in which a single aperture is formed, the single aperture extending over a major portion of the second area.
8. A sub-assembly as claimed in Claim 7, in which the sub-assembly is rectangular in plan and the first and second areas are divided by a third area in the form of a ridge which extends perpendicular to the longer sides of the rectangle across the full width of the rectangle.
9. A sub-assembly as claimed in Claim 8 and further comprising fourth and fifth areas, each of which is in the form of a ridge which extends perpendicular to the longer sides of the rectangle across the full width of the rectangle, the fourth and fifth areas forming respective ends of the rectangle.
10. A sub-assembly as claimed in Claim 9, in which the fourth and fifth areas comprise means for locating the printed circuit board.
11. A sub-assembly as claimed in Claim 10, in which the third area comprises means for locating the printed circuit board.
12. A sub-assembly as claimed in Claims 9, 10 or 11, in which the fourth and fifth areas comprise or carry means for connecting the sub-assembly to a further assembly to form a housing for electrical apparatus.
13. A telephone instrument comprising a sub-assembly as claimed in Claim 1 and a base section to which the sub-assembly is connected.
CA000519631A 1985-10-09 1986-10-02 Sub-assembly for electrical apparatus and electrical apparatus including such a sub-assembly Expired CA1262194A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8524843 1985-10-09
GB858524843A GB8524843D0 (en) 1985-10-09 1985-10-09 Telephone instrument

Publications (1)

Publication Number Publication Date
CA1262194A true CA1262194A (en) 1989-10-03

Family

ID=10586392

Family Applications (2)

Application Number Title Priority Date Filing Date
CA000519631A Expired CA1262194A (en) 1985-10-09 1986-10-02 Sub-assembly for electrical apparatus and electrical apparatus including such a sub-assembly
CA000519630A Expired CA1267739A (en) 1985-10-09 1986-10-02 Telephone instrument

Family Applications After (1)

Application Number Title Priority Date Filing Date
CA000519630A Expired CA1267739A (en) 1985-10-09 1986-10-02 Telephone instrument

Country Status (6)

Country Link
US (2) US4773090A (en)
EP (3) EP0218294A3 (en)
JP (3) JPS6292557A (en)
CA (2) CA1262194A (en)
DE (1) DE3688351T2 (en)
GB (1) GB8524843D0 (en)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01319349A (en) * 1988-06-21 1989-12-25 Matsushita Graphic Commun Syst Inc Replacement cover of picture communication equipment and replacement method
US5237608A (en) * 1989-01-30 1993-08-17 Siemens Aktiengesellschaft Telephone station having a housing with electrostatic protection
US5144302A (en) * 1989-04-04 1992-09-01 Apple Computer, Inc. Modular keyboard
JPH0756529Y2 (en) * 1989-10-21 1995-12-25 株式会社東芝 Desktop / wall-mounted phone
EP0713314B1 (en) * 1990-02-15 2003-05-07 Hitachi Telecom Technologies, Ltd. Dealing board
DE9016975U1 (en) * 1990-12-17 1991-03-07 Deutsche Fernsprecher Gesellschaft Mbh Marburg, 3550 Marburg, De
FR2690589B1 (en) * 1992-04-24 1994-06-10 Alcatel Business Systems ELECTRONIC APPARATUS WITH ASSOCIATED KEYS AND DISPLAY.
EP0575767B1 (en) * 1992-06-25 1998-10-14 Siemens Business Communication Systems, Inc. (a Delaware corp.) High visibility lightpipe in close proximity to function key
US6111207A (en) * 1999-06-30 2000-08-29 Hewlett-Packard Company Kit for multi-configurable control panel design for office equipment
KR100359519B1 (en) * 2000-03-16 2002-10-31 주식회사 동남 실리콘 Front-cover for communication equipment
DE20021326U1 (en) * 2000-12-16 2001-05-31 Qiagen Gmbh Device for taking samples
DE10140337B4 (en) * 2001-08-16 2005-02-24 Siemens Ag Electronic terminal
JP2004235736A (en) * 2003-01-28 2004-08-19 Nec Infrontia Corp Key telephone set and key telephone system
US7054700B2 (en) * 2003-11-17 2006-05-30 Lenovo Pte. Ltd. Method and system for efficient order processing in a manufacturing environment
US7284120B2 (en) 2003-11-17 2007-10-16 Lenovo (Singapore) Pte. Ltd. Method and system for allowing a system under test (SUT) to boot a plurality of operating systems without a need for local media
GB0405790D0 (en) * 2004-03-15 2004-04-21 Mitel Networks Corp Universal microphone array stand
US7853926B2 (en) * 2005-11-21 2010-12-14 International Business Machines Corporation Automated context-sensitive operating system switch
JP4585499B2 (en) * 2006-08-30 2010-11-24 株式会社東芝 Panel mounting structure, panel mounting method and telephone

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1223889B (en) * 1964-04-24 1966-09-01 Siemens Ag Telephone subscriber device
DE1487428C3 (en) * 1966-05-10 1974-06-27 Siemens Ag, 1000 Berlin Und 8000 Muenchen Telephone subscriber device
US3521008A (en) * 1966-10-31 1970-07-21 Northern Electric Co Telephone instrument
AT297807B (en) * 1969-03-06 1972-04-10 Kapsch Telephon Telegraph Telephone according to a modular system
CA970086A (en) * 1973-04-06 1975-06-24 Northern Electric Company Interconnector for telephone units
US3916103A (en) * 1973-04-09 1975-10-28 Northern Electric Co Interconnector for telephone units
US3941951A (en) * 1974-05-14 1976-03-02 Bell Telephone Laboratories, Incorporated Telephone stand
US4072840A (en) * 1974-10-31 1978-02-07 Litton Business Systems, Inc. Removable keyboard switch
US4092527A (en) * 1977-01-31 1978-05-30 Texas Instruments Incorporated Calculator with interchangeable keyset
CA1102767A (en) * 1978-03-15 1981-06-09 Decca Limited Illuminated panels
US4291201A (en) * 1979-04-09 1981-09-22 American Telecommunications Corporation Push-button dial assembly for telephones
US4284855A (en) * 1979-08-22 1981-08-18 Northern Telecom, Inc. Base for telephone set, for alternative desk and wall mounting
DE3007239C2 (en) * 1980-02-27 1985-02-07 Standard Elektrik Lorenz Ag, 7000 Stuttgart Keyboard with a large number of key sections
US4394545A (en) * 1980-03-11 1983-07-19 Bell Telephone Laboratories, Incorporated Construction of a telephone instrument
JPS6052758B2 (en) * 1980-09-20 1985-11-21 参天製薬株式会社 Heterotricyclic compounds
US4375584A (en) * 1980-10-06 1983-03-01 Siemens Corporation Modular telephone keyset structure
GB2086804B (en) * 1980-11-04 1984-08-22 Standard Telephones Cables Ltd Keyblock assembly
US4385212A (en) * 1981-10-05 1983-05-24 Bell Telephone Laboratories Incorporated Expandable communication terminal housing
DE3142414A1 (en) * 1981-10-26 1983-05-05 Siemens AG, 1000 Berlin und 8000 München KEYBOARD FOR COMMUNICATION TERMINALS
US4481587A (en) * 1981-12-24 1984-11-06 Pitney Bowes Inc. Apparatus for providing interchangeable keyboard functions
DE3211479A1 (en) * 1982-03-29 1983-09-29 Siemens AG, 1000 Berlin und 8000 München Keypad for telephone sets
US4517420A (en) * 1983-04-20 1985-05-14 Northern Telecom Limited Integral cup and hookswitch actuator for a telephone set
JPS6089228A (en) * 1983-10-19 1985-05-20 Matsushita Electric Ind Co Ltd Keyboard
US4581495A (en) * 1984-05-02 1986-04-08 Buscom Systems Inc. Modular telephone housing

Also Published As

Publication number Publication date
JPS6292557A (en) 1987-04-28
EP0218295B1 (en) 1993-04-28
EP0218294A2 (en) 1987-04-15
EP0218296A3 (en) 1989-02-22
US4868875A (en) 1989-09-19
DE3688351T2 (en) 1993-10-28
JPS62161239A (en) 1987-07-17
EP0218296A2 (en) 1987-04-15
US4773090A (en) 1988-09-20
CA1267739A (en) 1990-04-10
EP0218295A3 (en) 1989-02-22
DE3688351D1 (en) 1993-06-03
EP0218295A2 (en) 1987-04-15
JPS62142447A (en) 1987-06-25
EP0218294A3 (en) 1989-02-15
GB8524843D0 (en) 1985-11-13

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