US1692157A - Window-control mechanism - Google Patents

Description

Nov. zo, 192s. 1,692,151

E. J. COOKl WINDOW CONTROL MEGHANISM 2 Sheets-Sheet l Filed July 23, 1925 Nov. 20, 1.928.

E. J. COOK WINDOW CONTROL MECHANISM Filed July 23, 1923 ZSheets-Set 2 v Patented Nov. 20,1928.

unirti) a i Evnnnrr J. OooK, or TOLEDO, OHIO, AssIGNoR no 'rnnnrmn ooMrANsnoF TOLEDO,

' oH1o,'A CORPORATION or DELAWARE.

` i wrnnow-conmnor. Mncrmrrisirr.'v

Appncaucn med tJuiy sa,

The invention rela-tes to window control mechanisms and refers-particularly to mech#l anisms for adjusting windows of motor vehicles. One of the objects of the invention is to provide a lself-locking window control mechanism in which the control'arni is actu! ated by intermeshing internaland yexternal gears having diiferentnuihbers of teeth,` one gear having an orbital movement relative to the other and having .the controlv arm rigidly secured thereto. Another obj ect is to provide a control mechanism in whichithemeans forv counter-balancing the window is a spiral spring connected to the control arm land to the support for the control ari-n .in such a manner that its tension is practically unaltected by the longitudinal movement ot the control arm. A further object is the'provision' of a counter-balancing spiral spring` which is normally dished and which when assembled yin the control mechanismhas its convolutions resting against the support forthe control arm whereby rattling isl avoided.r 'K

With these as well as other objects in view the invention resides in the structural fea,- tures of construction and arrangements of parts as more fully hereinafter set forth.

In the drawings;

F'gure 1 is'an'interior view of a motor vehicle doorequipped with a Vwindow control mechanism embodying myv invention;

Figure 2 is an enlarged side elevation of the window control mechanism; p

Figure 3 is across section on the line 3-3 lof Figure 2; f

Figures a and 5 are respectively a side andv anfedge elevation of the internal vgear of the window control mechanism;

Figure is an edge elevation of the counterbalancing spiral spring of the'window control mechanism.

1 is a motor vehicle door having in its up-4 per portion a window opening 2 and in its lower portion a chamber 3. 4 is aclosure or window in the nature of a glass plate which is slidable in vertical guideways in-the door into and from the chamber 3. 5 is the usual lock board extending across the door Vjustv below the window opening, and 6 is the liner board also extending across the door but located below the lock board. I

7 is a plate secured at its upper' and lower edges respectively to the lock board and liner board and forming the support for the window control mechanism. 8 is a bushing ex- 1923. serial; Nd. @513,266

Atending transversely lof and rigidly secured to the plate, and Q'is a handle shaft Vextend,- ing through the bushing and journalled therein, this handle shaft having secured to its outer end the handle arm 10. 11 and 12 are respectively the internal andexternal gears for veffecting the driving connection between the handle shaft 9 and thewindowv control, arml 13, which latter has the roller 14 at its free or Outer end operatively connected to thewindow 4. Y

The gearsjll and r12 have different numbers A oi' teeth and ,one` has a bodily orbital movement relative to the other to effect the swinging ofthe control arm. Asshown, the inteinal gear 11 is rigidly secured to the support` ing plate 7 while the external gear 12 is rotatably mounted upon the eccentric 15 xedv y uponthe inner end of thehandle shaft'9, the

eccentricity of the eccentric being equal to one-half the difference in pitch diameters of the gears so that the latter are in mesh at all times, and when the handle shaft is rotated the points of engagement of their teeth rotate with the eccentric. The control arm 13 is also rotatably mounted upon the eccentric 15,but it is secured to the external gear 12 l by means of the rivets 16. With this arrange-k ment rotation of the handle shaft effects a bodily orbital'movement'ofthe external gear' to bring the teeth of the same successively into mesh with the teeth of the internal gear, thereby effecting a rotation of the external gear upon the eccentric. vSince the control arm is rigidly secured to the external gear, the same will be swung tol raise or lower tho window.I *Y

1,7' is a window counter-balancing springe spiral form having its inner end connected to tie supporting plate, and its outer end to the control arm. By reason of this arrangement, the longitudinal movement of the control arm caused by it being mounted upon 'the eccentric does not appreciably affect the tension of the counter-balancing means, and as a consequence, the raising and lowering of the window is more uniform. Apparently this is due to the fact that the longitudinal movement of the control arm effects a radial movement of the end of the spiral .spring connected thereto which varies the circumferential supporting plate.

do not engage each other at any time and as a For Vthe purpose of providing a window Y control mechanism in which the same parts may be used upon either a right hand or a left hand door,'tlie spiral spring has its opposite ends hooked with the return bent porti-ons in the plane of the sprino. Also, the means tor securing these hoolred ends to the supporting plate and control arm extend into the plane of the spring. As shown the control arm 13 extends beyond the eccentric 15 and has the transverse flange 18 at its end, the edge of which is engaged by the outer hooked end of the spiral spring, the portion ot the outer convolution adjacent this hooked end lying over the transverse flange. The internal gear 11 forms the connection between the inner hooked end of the spiral spring and the This internal gear as shown in Figures l and 5 particularly has the peripheral spaced transversely extending ears n 19 provided with shoulders 2O and tongues 21,

the latter extending through openings in the supporting plate and being riveted tliereover with the shoulders 20 against the inner side of the plate. The tongues are of such a length that the inner hooked end of the spiialspring may enter between the supporting plate andV body of the internal gear and engage an edge of one of the ears. Owing to the tact that a number of ears are provided tliat'are engageable with the inner hooked end of the spiral spring, the tension of the spring may be readily varied.l With this arrangement, if it is desired to convert the window control Vmech-V anism so thatit may be assembled in a right hand door instead of a left hand door, the spiral spring may be removed and reversed, at which time its hooked edges will engage the opposite edges of the transverse flange 18 upon the control arm and of one of the ears 19 upon the internal gear.

To avoid rattling occasioned by the transf verse movement or' the convolutions ot the spiral spring, I make `my spiral spring as shown in Figure 6 particularly'of dished form so'tliat when assembled in the window control mechanism and its convolutions are forced into the same plane they will exert pressure at all times upon the supporting plate 7 From the above description it will be readily seen that I have provided a simple construction of self-locking window control mechanism in which the internal gear and also the external gear and control arm as well as supporting plate may be formed or' stampings. It will also be seen that I have provided a window counterbalancing means which isk the connecting of the spiral spring formingthe window counter-balancing means to the supporting plate by means of the riveting portions of the internal gear secured to the supporting plate, and the disliing o t the spiral spring so that its convolutions will bear against the vsupporting plate to avoid rattling.

vThat I claim as my invention isfzf l. In a window control mechanism, the

combination with a support, of a control arm mounted upon said support, and a spiral count'eihbalancing spring connected to said support and arm, said spring having its convolutions tensioned to bear-against one of said members.

2. In a window Vcontrol mechanism, the combination with a supporting plate, of'a swinging control arm carried by said plate, and a spiral normally dished counter-balancing spring connected to saidplate and arm having each of its coiivolutions bearing resilieiitly against one of said members.

3. In a window control mechanism, the combination with a supporting plate, ot a control arin carried by said plate, means for ei'ecting a combined oscillatory and swinging movement of said arm, and a spiral normallyL dished countei'fbalancing spring having its convolutions bearing against one ot said members.

In testimony whereof I aj'lliX my signature.

nvnnnrfr J. Coon.

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