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Reply Brief in Support of KSR's Motion for Summary ... - Fried Frank

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5,063,8113-cønventional accele,rat~r peal assembly, hav<strong>in</strong>g ,thesame feel and basically function<strong>in</strong>g <strong>in</strong> the same ,manner,The general assembly <strong>of</strong> the accelerator pedal assemblywith<strong>in</strong> a vehicle cab is best shown <strong>in</strong> FIGS. 1 and 2.The accelerator pedal assembly, generally designated 510, is adapted to be mounted to the floor <strong>of</strong> the vehiclecab. The lower portion is mounted to the floor pan .1by several bolts 14. Likewise, at its upper end, it issecured by 'several bolts 16 to that part <strong>of</strong> the floorwhich is normally referred to as the toe board 18.The accelerator pedal assembly <strong>in</strong>cludes a base,bracket member 20, an accelerator pedal 22 h<strong>in</strong>gedlyconnected by h<strong>in</strong>ge p<strong>in</strong> 24 to the lower portion <strong>of</strong> thebase bracket member, an upper hous<strong>in</strong>g portion 26which is part <strong>of</strong> the base bracket member and <strong>in</strong>cludes IScertan electrical components affxed thereto <strong>in</strong>clud<strong>in</strong>ga potentiometer 28 and an idle validation switch 30, andan oscilat<strong>in</strong>g follower member 32 pivotally connected'to the free end <strong>of</strong> the accelerator pedal <strong>for</strong> translat<strong>in</strong>gthe motion <strong>of</strong> the accelerator pedal to the electrical 20components 28 and 30.More specificaly, it is seen that the base bracketmember 20 is <strong>in</strong> the <strong>for</strong>m <strong>of</strong> an elongated plate member.-It <strong>in</strong>cludes a lower portion 34 which is generally horizontalto the floor pan 12, and an upper porton 36 25arranged generally vertically. At the midpo<strong>in</strong>t <strong>of</strong> thebase bracket member 20, which is generally at thejuncture<strong>of</strong> the upper and lower portions there<strong>of</strong>, there islocated a stop member 38 which projects upwardly <strong>in</strong>the direction <strong>of</strong> the accelerator pedal 22 and acts as a 30stop <strong>for</strong> the accelerator pedal represent<strong>in</strong>g the wideopen-throttleposition. At the extreme upper end <strong>of</strong> the "base bracket membe, the hous<strong>in</strong>g portion 26 is <strong>for</strong>medby two laterally spaced and outwardly project<strong>in</strong>g walls40 and 42. Each <strong>of</strong> the Walls <strong>in</strong>clude a flange 44,46, 35respectively, at the free end there<strong>of</strong> which is stepped at,its lower portion as seen best <strong>in</strong> FIG. 3 to <strong>for</strong>m a stopshoulder 48,50, respectively, described <strong>in</strong> detail below.The accelerator peal 22 <strong>in</strong>cludes a h<strong>in</strong>ge 24 at itslower end, allow<strong>in</strong>g it to be fixed toa h<strong>in</strong>ge plate 52 40'which <strong>in</strong> turn is affxed to the bas bracket member bythe sae bolt 14 affx<strong>in</strong>g the bas bracket member tò thefloor pan. Oii the undersde <strong>of</strong> the accelerator pedal,there is secured a flat plate, member 54 extend<strong>in</strong>g be, yond the pedal portion <strong>of</strong> the accelerator pedal and 45provid<strong>in</strong>g a coupl<strong>in</strong>g member 56 <strong>for</strong> coupl<strong>in</strong>g the angularmovement <strong>of</strong> the acclerator pedal with that <strong>of</strong>oscilat<strong>in</strong>g follower membe 32 which <strong>in</strong> turn controlsthe position <strong>of</strong>the rotar <strong>in</strong>put shaft 70 received withpotentiometer 28. " 50The' coupl<strong>in</strong>gmember <strong>in</strong>cludes a laterally extend<strong>in</strong>gplate portiori 58 and a flange portion 60 extend<strong>in</strong>g therefrom<strong>in</strong> thé direction <strong>of</strong> the nasebracket member 20.The laterally éxtendÌiig porton 58 is curved generallyalong an axs parallel to tht <strong>of</strong> h<strong>in</strong>ge p<strong>in</strong> 24. The con- '55cave underside there<strong>of</strong> provides a carsurface Iii upon'which a ear follower <strong>in</strong> the, <strong>for</strong>m <strong>of</strong> a roller 66 isadapted to ride. The flange 60 .<strong>in</strong>cludes a generallycurved slot 68 to allow a means <strong>for</strong> fix<strong>in</strong>g the follower32 tothe coupl<strong>in</strong>g. tíLok<strong>in</strong>g parcularly at FIGS. 3, 4 and 5, the hous<strong>in</strong>g'portion 26 <strong>of</strong> the base bracket member is adapted toretan a rot3. potentiometer 28 ön the outboard side <strong>of</strong>one wall member 40 and an idle validation switch 30 onthe outboard side <strong>of</strong> the other wall 42. Each <strong>of</strong> the walls 65is bored alòng a, lateral axis to support arotary <strong>in</strong>putmeans are provided onshaft 70 on. bear<strong>in</strong>gs'SO. Suitablethe shaft 7¡Hor key<strong>in</strong>g it,to the rotary <strong>in</strong>put shaft <strong>of</strong> the4r.otary potentiometer 28; and to the oscillat<strong>in</strong>g followermember 32 and to an actuat<strong>in</strong>g lever 72 located <strong>in</strong> prox<strong>in</strong>lityto the idle validation switch and adapted to engagea trip lever 73 when <strong>in</strong> the idle position. For thispurpose, the rotary shaft can be flattened throughout itslength on a m<strong>in</strong>or arc portion <strong>of</strong> its circumference asshown at 74 <strong>in</strong> FIGS. 4 and 5. In this way, the shaft iskeyed to the follower member 32 and actuat<strong>in</strong>g lever72, each <strong>of</strong> which <strong>in</strong>cludes a correspond<strong>in</strong>gly shaped10 slot 76 and 78, respectively. Likewise, bear<strong>in</strong>gs 80which support the <strong>in</strong>put shaft on walls 40,42 <strong>in</strong>clude an<strong>in</strong>ner race member 82 hav<strong>in</strong>g a correspond<strong>in</strong>gly shapedslot 84.The manner <strong>in</strong> which the <strong>in</strong>put shaft 70 is keyed tothe potentiometer 28 is expla<strong>in</strong>ed below <strong>in</strong> connectionwith FIGS. 7 and 8.The oscilat<strong>in</strong>g follower member 32 is located with<strong>in</strong>the hous<strong>in</strong>g portion 26 and is supported by and adaptedto pivot about the rotary shaft 70. The follower member<strong>in</strong>cludes a laterally extend<strong>in</strong>g stop member 86.As seen- best <strong>in</strong> FIG. 4, the follower member 32 is, adapted' to be biased by a torsion coil spr<strong>in</strong>g 88 <strong>in</strong> aposition shown <strong>in</strong> phantom J<strong>in</strong>e<strong>in</strong> FIG. 4 which representsthe idle ,position <strong>of</strong> the accelerator pedaL. Tne stopmember 86 wil abut at both walls with stop shoulders48,50 <strong>for</strong>med <strong>in</strong> flanges 44 and 46, respectively. Thepreferred coil spr<strong>in</strong>g as seen <strong>in</strong> FIG. 3 is known as a"harp<strong>in</strong>" spr<strong>in</strong>g. It <strong>in</strong>cludes an <strong>in</strong>termediate portion 90between respective coils 92,94 and ends 96,98. It functionsas a dual spr<strong>in</strong>g. If one-half should break, the rema<strong>in</strong><strong>in</strong>ghalf provides a back-up and cont<strong>in</strong>ues to function.As seen, the coil spr<strong>in</strong>g is adapted to bear aga<strong>in</strong>stthe hous<strong>in</strong>g portion at <strong>in</strong>termediate portion 36 andaga<strong>in</strong>st the stop member 86 at its ends 96,98.At its opposite end, the oscilat<strong>in</strong>g follower member32 <strong>in</strong>cludes a p<strong>in</strong> ioo hav<strong>in</strong>g a roller 66 rotationallymounted thereon., The p<strong>in</strong> rides with<strong>in</strong> an arcuate slot68 <strong>for</strong>med <strong>in</strong> the flange portion 60. It is held with<strong>in</strong> theslot by any suitable means such ,as washer 106 and cotterp<strong>in</strong> 108 as shown.As noted below, the secur<strong>in</strong>g <strong>of</strong> p<strong>in</strong> 100 with<strong>in</strong> slot 68also serves to preclude undesirable spr<strong>in</strong>g back <strong>of</strong> theaccelerator pedal 22 when the operator _may abruptlyreleas the pedaL. Thus, the pedal 22 is restra<strong>in</strong>ed totraverse only the arc designated 116 <strong>in</strong> FIG. 1 betweenthe idle and wide open throttle positions. At the sal1etime, the roller 66 wil be aga<strong>in</strong>st the ea surface 62 <strong>of</strong>thè accelerator pedal member.It wil be noted that the rota potentiometer 28 issecurely fixed to the hous<strong>in</strong>g portion 26. Thus, regaidless<strong>of</strong> the movement <strong>of</strong> the accelerator pedal, the rotarypotentiometer will rema<strong>in</strong> fixed <strong>in</strong> position~ Thewire 110 which transmits the electrical output <strong>of</strong> thepotentiometer to alikewise rema<strong>in</strong> <strong>in</strong>' a fixed position. Thus,electrical wir<strong>in</strong>gcontrol means (not shown), wilthe ' entireassembly from the potentiometer 28 tothe ma<strong>in</strong> wig harness 112 with<strong>in</strong> the dash supportstructure 114 as seen <strong>in</strong> FIG. i wil rema<strong>in</strong> <strong>in</strong> a station-, ary position and be free from chafng and other conditionscaus<strong>in</strong>g, wear and premature failure:As an optional feature, the accelerator pedal can<strong>in</strong>clude a secondary pedal blade 120 fixed to the underside<strong>of</strong> the accelerator pedal and extend<strong>in</strong>g through aportion <strong>of</strong> the base bracket member and the floor pan atan open<strong>in</strong>g 122, to a terIn<strong>in</strong>al position outside the vehiclecab. At its opposite end. the secondary peal blade canbe affxed to a control rod 124. Upon actuation <strong>of</strong> thepedal from the 'idle position- as shown <strong>in</strong> solid l<strong>in</strong>e <strong>in</strong>

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