US1850864A - Automobile window screen - Google Patents

Description

Ma-lch 22, 1932. E, 1. .QAMPBELL- Y 1,850,864

AUTOMOBILE WINDOW SCREEN Filed Oct. 29, 1930 2 SheeT-Shc-:etI l Mgg?.

March ,22, 1932. E 1. CAMPBELL 1,850,864

AUTOMOBILE vWI NDOW SCREEN Filed Oct. 29,v 193D 2 Sheets-Shee'f.- 2

'zmmfazw da, @5pm m M (Riot/wmp Patented Mar. 22,1 .1932

" ori-fica n ELMER J. CAMPBELL, OF LOGANSIEYR'I, INDIANA AUTOMOBILE WINDOW ksonnnn Application :filed October 29, 1930. 'Serial No. 492,077.`

The object of the invention is ytoprovide a screen for incorporation in the frame for the windows ofautomobiles, so that it may be raised and lowered, `just as are the Windows yand in this way permit the entrance of air for ventilation but exclude insects with their annoyance to the occupants; to provide an actuating means for the screen whereby the latter may be elevated and lowered and latched in either position, the former of which' will prevent unauthorized entrance to the car when locked; to provide an actuating mechanisml adaptable either to the use of screens or windows, so that any ydesired degree o-f opening of the same may be had, with the screen or window positively latched in that position; and to provide an actuating mechanism of the kind indicated which is of simple form, susceptible of cheap manufacture and possible of incorporation in the construe tion of an auto-vehicle body without material modification thereof.

With this object in view, the invention consists in a construction and combination of parts of which a preferred embodiment is illustrated in the accompanying drawings, wherein: f

Figure l is a side elevational view of an auto-vehicle door with the interior covering removed toeXpose the invention which is applied in operative position thereon.

Figure 2 is a sectional View on the plane indicated by the line 2-2o-f Figure 1.

Figure 3 is a sectional view on the Lplane indicated bythe line 3-3 of Figure 2, the latch being shown in retracted position.

Fig. 4 is a View similar to Fig. 3, showing the latch in engaged position.

Fig. 5 is a section on the line 4 4 of Fig. 3.

Fig. 6 is a section on the line 6-6 of Fig. 4.

Figure 7 is a detailed view partly in section and partly in elevation of the force arm of the screen actuating lever.

While the actuating mechanism comprised in the invention is adaptable to the use of either elevating and lowering a window or a screen, it is shown in the illustrated embodiment as the actuating means for a screen 10 vslidably mounted in guides 11, paralleling 5 the conventional window guides 12 but on Avframe 18.

the outside of the latter. The screen drops normally by gravity rinto the windowl pocket but is'raised or elevated by a lever structure of the nature of a bell crank lever, Whose Y resistance arm l2 and force arm 14are`con- 55 nected, as at 15,to the remote ends of a shaft v16 having its terminalsjournalled respectively inthe main frame 17 of the door and supplemental frame 18 which israpplied on the`V inner face of the window andv screen' pocket 60 thereof. The fulcrum stud 16-is positioned to one side of the screen l0 so that there may be no interference with the latter as it is raised and lowered, the lowering dependingkf on thedegree of movement of the resistance l arm'12..

Connection is madebetweenfthe resistance arm 12 of the lever andthe'screen by means of a hooked terminal 19 on the former which embraces the lower edge of the screen at the transverse center.

f Rocking movement is communicated to the actuating lever by means of a chain 2O trained over the upper sprocket 21 and lower sprockv et 22 whose axes of rotation are in the same 75m vertical plane by reason of the sprockets being carried in the spaced mounting bars 23 which span Aand are secured to, the supplemental One terminal of the force arm 14 is anchored to this chainby'means of a piv- A"80 otal connection 24 and sincethis anchored? terminal will move in a vertical plane in the actuation ofthe force arm thus constantly rchanging the distance between it and the gfulcrum stud 16, the force arm must been-F'85 tensible and contractible in length fand to this end it is composed of the tubular section 14a into which [the solid section 141 telescopes.

The sprocket 21 and, therefore,the chain 2O are actuated by the crank 25 on whose spin- *90 dle 26 the sprocket 21 is looselymounted, so that there may. be relative angular or turning movement between the crank and sprocketto first disengage the latch' 27 before turning movement is imparted to the sprocket.

The latch'27 is in the form of a block slidably mounted between guides 28 `on. the rear face ofthe sprocket and impelled inone direcltion bya compression spring 29 compressed between the rear end of 'the block and .an 2:1100

abutment 30 on the rear face of the sprocket. The spring tends to force the block in a direction to engage its nose 27 a between any pair of teeth of a keeper ring 31 which is in the form of an internal gear mounted on the inner face of one of the mounting bars 23. The keeper ring 31 being mounted on the fixed mounting bar and the latch being carried by the sprocket 21, turning movement of the latter and therefore actuation of the elevating lever is precluded if the latch be engaged with the keeper ring.

The crank 25, aside from constituting the means for actuating the sprocket 21, also constitutes the means for retracting the latch and to this end the spindle 26 is provided with a radial in 32 en ageable with either of the oppositell7 dispose abutment shoulders 33 or 34 disposed Within the spindle clearance o 80 opening 35 formed in the latch block. Thus if the crank be turned in one direction, the pin 32 will engage the shoulder 33 and retract the latch after which continued movement of the crank in that direction will impart 35 yturning movement to the sprocket 21-since the latch is precluded from angular or turning movement relative to the sprocket by reason of its mounting between the guides 28. If the crank be turned in the opposite direction, the l0 shoulder 34 will be engaged and the latch retracted as before after which turning movement of the sprocket 21 will take place in the then direction of movement of the crank.

By reason of the toothed form of keeper 3.5 ring 31, the sprocket 21 may be latched in any position to which the actuating lever for the screen is moved and the latter may be raised or lowered by turning the crank in the proper direction to carry the anchor point 24 of the force arm 14 either up or down.

The invention having been described, what is claimed as new andy useful is:

An operator for vertically acting screens of automobiles and the like, including a driving gear, an annular keeper concentric with the gear and held against rotation, said keeper being formed with internal teeth arranged wholly Within the periphery of the gear, guides formed on the rear face of the gear, o a latch slidable in said guides and movable diametrically of the gear, said latch having a nose to engage the teeth of the keeper and an internal opening formed to provide opposing shoulders, a spring carried by the gear to 5,5 hold the latch nose normally in engagement with the keeper, and a gear-operating shaft loosely arranged axially of the gear and keep er and formed with a projection operating in the latch opening under shaft movement to 00 engage one of the shoulders of the latch and disengage the latch and keeper and relatively fix the latch and gear to operate the latter.

In testimony whereof I affix my signature.

u ELMER J. CAMPBELL.

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