US1677175A - Mounting for windshield cleaners - Google Patents

Description

Ju1y17,192s. l C 1,617,175

A..E.DoMA|1 C MOUNTING FOR WINDSHIELD CLEANERS Filed May 22, 1925 2 sheets-sheet 1A rmn/vfys July 17, 1928. 1,677,175

' A. E. DoMAN MOUNTING FOR WINDSHIELD CLEANERS Filed May 22, 1925 L 2 sheeis-shet 2 l Y. l Mfg/wref? Y /7770 NEYS Patented July 17,1928. j l l i f UNITED sTATEsgPATENroFl-'lca ALBERT E. DOJYIAJI',V OF ELBRIDGE, NEW YORK.

MOUNTING FOR WINDSHIELD CLEANERS.

.Application led May 22, 1925. Serial No. 32,171.

This invention relates to a mounting for to the vertical width of the top rail a 55 motor driven wind shield cleaners in which of the wind shield to which it is attached. an oscillating motion is transmitted from The'side of the gear .case '-fladjacent the motor to the wiper through the medium the inner face of the rall -aF- 1s provided of speed-reducing gearing and in such manwlth an external threaded tubular nipple ner as to apply considerable force to the -5- of suliclent length to extend entirely operation of the wiper by the expenditure through and beyond the front face of the of a minimum amount of current energy. rail to be clamped thereto in a manner The main object is to produce a unitary presently described. article of manufacture of this character lin As illustrated more clearly in Figure 4,. which all the parts may be assembled in a metal plate -6- is interposed between 65 compact relation within a comparatively the rear 'face of the rail -a and adjacent small space and easily and quickly attached side of the gear case -4- and is provided to the top rail of the wind shield of any at its upper edge with a forwardly offset closed or open car without in any waybbflange 7- adapted to rest uponv the upper structing the forward vision of the river edge of said rail to hold the plate against 70 through the wind shield. lateral rocking' movement. Other objects and uses relating to specific This plate extends downwardly across the parts of the device will be brought out in inner face of the rail 05H and is provided the following description. with a vertically elongated slot -8- for" v In the drawings: i l V` receivlng the tubular nipple -5- and a 75 Figure l isa ma; fac view of a portion shallow boss -9- which projects forwardly of awind shield and my improved wiper from the front face of the gear case -4- operating mechanism mounted thereon. below the tubular nipple --5- to cooperate Figure 2 is an enlarged jhorrzontal secwith said nipple in holding the gear case tional view taken on line 2 2, Figure l. in a horlzontal position when adjusted for 80 Figure 3 isan enlarged yhorizontal sc cuse. I tional view through the gear case in a plane The object of the slot --8 is to permit below that shown inaFigur-e. 2 or rather in the plate -6- to be adjusted vertically rela plane below the bearing for the motor latively to the case -4- and' its boss e9- shaft. to conform to rails of different widths or 85 Figures 4, 5 and 6 are enlarged transverse heights without effecting the position of the vertical sectional views taken respectively gear case as determined by the opening in on lines 1 -4, 5--5,and 6-6, Figure 1. the `rail -ath-rough which the tubular Figure 7 is an venlarged front face View nipple -5- is passed.

of the device shown in igure l except that The front face ofthe gear case 4 is 9o the connections between the rock sha-ftl and brought into engagement with Lthe rear face wiper operatingl arm and also between said of the plate -6 with the boss -9-iproarm and the wiper supporting arm are jecting into the slot -8- and the tubular .40. shown in section. stem -5'- extending through the opening Figure 8 is a transverse vertical sectional as ,-a-` in the rail -a. 1 95 view taken in the planeof line 8-8, Fig- A vertically slotted plate 10 is then A' ure 4. f i placed over andnupon the front end 4 of the A s illustrated, the wiper-operating device .threaded stem 5 and against the front is mounted upon the top rail as 'aof a face of ythe rail -aand is held in place wind shield `A and comprises an electric by a nut 1lwhich engages the threaded 100 motor '-1- having its armature shaft 2fstem 5 and also serves to clamp the' extended a considerable distance from 'one plate `6- against the rear face of the rail end of the armature and journaled in a tu- -aand the gear case 4.- against the bular bearing 3 which forms apart of a rear vface ofthe plate.l

gear case oriousng The gear case is substantially rectangular a vertically elongated slot -10 for `reand is preferably comparatively shallow verceiving the threaded stem 5- a'nd permittically to correspond as closely as possible ting a limited adjustment of said plate ver- The frontl plate 10- is provided with 105` tically to conform to rails of different widths, said plate -10-- being provided with a shoulder l2- stem- 5w for engaging the underside of -the rail and thereby cooperating with gears, presentlv described, `to the armature shaft -2- of the motor while the Yfront end extends beyond the corresponding end of the threaded sleeve or bushing --5-` for receiving` a U-shaped hub --1 l of an 0S- cillating arln -15-.

The hub 14d is splined on the rock shaft -13- and is held in fixed relation thereto by a set screw -`-16- carrying one end of the oscillating arm --15.

The lower end of the plate -10 is provided with a forwardly projecting Stud -17- parallel with and somedistance below the rock shaft -13-- and upon which is journaled one end of a wiper supporting arm -18- carrying a flexible wiper -19- which bears directly against the front face of the wind shield glass as -A-, Figure 4.

The wiper supporting arm 18- is movable in a plane about the axis of the stud --17 between the plane of movement of the arm -15- and front face of the glass -A- and is adapted to be oscillated about said axis through the medium of suitable connections with the arm -15- and for this purpose the wiper supporting arm --18- is provided intermediate its ends with a bossl -21- having an aperture 22- through which the arm -\15- extends so that any oscillatory motion imparted to .the arm -15- will be transmitted to the wiper supporting armA -1&-.

The object of pivoting the Wiper supporting arm -18- to the plate -1044 below' Gear trai/n.

lThe portion of the armature shaft 2 extending into the gear case --lis provided with a gear worm -23- meshing with a worm gear 24.- which is mounted upon an upright tubular shaft -25 carbelow the threaded rying a pinion -26-, the lower end of the shaft -25- being journaled in a suitable bearing -27- on the bottom of the case -4- while its upper end may be journaled in a similar bearing -29- on ythe top of the case.

The pinion -26- meshes with a relatively larger gear -30- having an upright supporting shaft 431-- which isrjournaled in a bearing -32- on the bottom of the gear case --4-, said bearings -27- and -2- being closed at the bottom to permit the retention of oil 'in the case for lubricating the several gears and to lubricate the several rotating parts therein.

A gear segment -33- is pivotally journaled at eliain a suitable bearing -35- 4in the bottom of the gear case to swing horizontally in a plane between the gears Q4- and -30-, said gear being extended forwardly from its pivot -34 and provided at its forward end with a toothed segment -36- in mesh with a pinion -37- on the inner end of the rock shaft n13", said pinion being located within the gear case -4- and against the inner end of p the tubular bushing -5-.

The inner end of the bushing -5- is tapered and tightly fitted in a correspondingly tapered socket -38- in the front end of the gear case -4- to hold said bushing in. fixed relation to the gear case\and to permit saidgear caseto be easily and quickly removed or replaced from or upon the rail -aof thewind shield by simply removing or replacing the nut -1l-.

The oppositeends of the bearing -3- for the motor shaft -2- are also tapered and tightly fitted in correspondingly` tapered sockets -39- and -40- in the opposite endpwalls of the gear case -.4-- as shown more clearlyin Figure 2, the side of the bearing -3- adjacent the -worm gear 21lbeing cut away at 31- to permit'the meshing of the Worm and gear and also to permit lubrication of the intermfeshing teeth of those parts by the oil within the gear case.

i link -41- is' pivoted at one end 4Q- to the gear '-30- at one side of its axis and has its other end pivoted at -43- to the gearsegment S3- near the front end thereof for impartingl reciprocal motion thereto and, through the medium of the pinion -37-, causing the shaft .13- with the arm -15- thereon to oscillate the wiper supporting arm --18 through an arc of-substautially 180 degrees as previously explained.

'Ifhe gear case -1i-- is preferably divided horlzontally at 44:- in a plane above the gear Q4- to form a removable top section -4 which is normally secured to the lower'isection by screw bolts 415- so that lilll it may be removed when necessary for inspection or repairs of the parts within the gear case, the lower section being adapted to-re`ceive and retain a quantity of 'oil for lubricating `those parts and the 'bearings therefor.

The entire motor '1- including the armature and field magnetsl aresupported wholly outside of the gear case -lat one end thereof, the armature being supported Wholly by the shaft -2- and bearings -3- while the field magnet as 4S- is secured by bolts -47- to the adjacent end of the gear case.

The outer end of the armature shaft is provided with a commutator -48-' engaged by suitable brushes 4Q- Figure 6, said brushes being yieldingly held against opposite sides of the commutator bysupporting arms -50, said arms being mounted upon supporting posts -5lon'the field magnet --46- at one side ofthe armature of the motor and are connected by a spring 52- for yieldingly holding the brushes 4Q-'in contact with the commutator.

The entire motor including the field magnet -46-, commutator -48- and brush holders -50- are inclosed in a suitable housing 5S- having one end telescopically litted upon the adjacent end of the gear case 4.4- and secured thereto by screws -54 or equivalent fastening means whereby the motor housing may be removed when de,- sired, the outer end of sai-d housing being provided with a journal opening in which is journaled the 'intermediate portion of a lswitch lever -56- having one end extending to the outside of the adjacent end of the housing to form a handle by which it may be turned and its `other end provided with an oset -57- at the inside of the housing for engagin one of the brush holders -50- where y when the lever is rocked in one direction, the corresponding brush will be moved out of engagement with the commutator tobreak the motor circuit 'and thereby stop the operation of the motor when desired. v

The switchv lever -56-- is held in its adengaging respectively the outer and inner faces of the adjacent end wall of the housing 53 and connected to each other through an axial opening in the lever "by means 'of a screw or a rivet 60, Figure 2, the disk -59- being concavo-convex in slot 63 in theperiphery of the inner disk -59- to cause the latter to rotate withthe lever. I v

The periphery of the disk -59- is provided with circumferentially spaced shoulon the adjacent end wall of the cover -53- forlimiting the movement, .of the lever -56- and thereby limiting the opening movement of the brush holder actuated thereby as may be required vfor opening and closing the motor circuit as -C-, Figure 6.

During the operation of the gear train in the gear case 4fthe oil will be splashed about more or less therein and will be transferred to the gears and bearings therefor and to a suitable disk -67- andwick -68- of felt or. other absorbent material which ill retain more or less of the lubricant for )fufrther distribution to the gears and bearings in casethe oil supply in the reservoir of the gear case lslowered.

Operation Assuming that the switch member- 5G--Y 4is adjusted to close lthe motor circuit thereby transmitting 'rotary motion to the shaft -2- and Worm gear #-24- and through the pinion 2G- to the gear -30- which through the medium of the pitman link ,-4lwill impart an oscillatory motion to the gear segment -33- for rocking the shaft -13- lirst in one direction and then j in the opposite direction.

This rocking motion will be transmitted to the arm -l5- which in turn will impart similar rockingI motion to the wiper supporting arm -18- and its Wiper --19` across the surface of the glass -A- but about a different axis as that of the stud -17- some distance below the shaft -l3 and rail -a--, the ratio of gears of the lgear trainbeing arranged to cause the wiper `-l8- to move through an are of substantially 180 degrees and this oscillating movement will be maintained as long as the motor is in operation or until the switch lever -56- is adjusted to break the motor circuit by simply moving one `of the brush holders and its brush out of contact with the commutator.

,The particular arrangement of the gear transmission between t 1e continuously 'rotating shaft -24- and rock shaft --13 not only operates the wiper arm with considerable force by the expenditure of a very small amount of current but also renders this operation ractically noiseless and allows Iparts of t e gear train to be assembled within an extremely small gear case mainly within theheightV of the wind shield rail to which it'is attached and furthermore, by using the plates ,-6- and -10- against the inner and outer faces of lthe rail -a in the particular relation described enables the entire gear case and motor case with the various operating parts therein to be fastened in place by a single nut as -11, all of which greatly reduces the cost ot manufacture and installation.

that I claim is:

jl. ln a motor driven windshield cleaner, a langed plate adapted to be applied to the :tace ot' the windshield traine with its flange engaging one o'l` the edges thereot to hold it against turning relatively to the traine, said plate having a vertical slot therein, a gear ease having a post adapted to extend through said slot and through an opening in the frame when the cleaner isiadjusted for use, means on the'iront end ot the post for engaging the adjacent face of the frame to hold the gear case in engagement with said plate, said gear ease having a boss at one side of the axis ot the post engaging in the slot of the plate 'for holding the gear case against turning movement relatively to said plate, a rock shaft extending through the post, a wiper arm actuated by the rock slia'tt and means for oscillating the rock shaft.

2. .In a mounting for windshield"cleaners, a plate, means for securing the plate to the front face of the top i'ail of a windshield traine, said plate having a vertically elongated slot and a rearwardly projecting shoulder engaging the underside ot said rail to hold it against lateral turning movement7 a wiper pivotally mounted upon the lower end o't .the plate below said shoulder i'or a lateral swinging movement across the iaee of the windshield, a rock shaft adapted to extend through an opening in said rail and through the slot in said plate some distance above the wiper pivot, means actuated by the rock shaft for transmitting oscillatory motion to the wiper, and means for rotating the rock shait in reverse directions.

il. vIn a mounting i'or windshield cleaners, plates adapted to engage respectively the rear and front 'faces of the top rail of a windsliield trame, the rear plate having its upper edge. provided with a forwardly projecting flange for engaging the upper edge of the rail, the front plate being provided with a rearwardly projecting shoulder for engaging the lower edge of the rail, said plates being provided with vertically elongated slots, a motor support applied to the rear Jface of the rear plate and provided with a tubular post adapted to extend through the slots in both plates and through an opening in said rail, means engaging the front end ot' the post for clamping the support and plates to the rail, a boss on said supportl projecting into the slot ot the rear plate', a

rock shaft journaled in the post, a motor on the support for rocking the shaft in reverse directions7 a wiper pivoted to the rontplate to swing about an axis parallel with and Vsome distance below the rock shaft., and

means for transmitting motion from the rock shaft to the wiper.

4c. In a mounting for windshield cleaners, the combination with a motor supporting frame having a tubular post adapted to extend through an opening in the windshield trame, ot a clamping plate having a vertical slot for receiving saidA post and a shoulder for engaging the underside ot the windshield frame, said post having means tor pivotallysupporting a Windshield wiper, and means including a motor driven shaft extending through the tubular post ft'or osfeillating the windshield wiper.

5. 1n a mounting for windshield cleaners-r the combination with a motor supporting frame having a tapered opening in one. side, a tubular post having a tapered head engaged with the walls ot said opening and adapted to be mounted in an opening in the 'windshield trame shatt extending through said post and actuated by said motor, and means for drawing the post endwise. in the direction of its taper and for simultaneously clamping the motor supporting Jframe to a windshield frame.

ln witness whereof I have hereunto set my hand this 13th day of May, 1925.

ALBER'I Il. DOMAN'.

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