US1841734A - Windshield cleaner - Google Patents

Description

Jan. 19, 1932. H, HUEBER 1,841,734 I 'WINDSHIELD CLEANER A Filed March 2 0, 1930 Patented Jan. 19, '1932 UNITED STATES- l PATENT Vol-Fics H'ENBY OF BUFALO, NIW YORK, ASSIGNOB T0 TRIGO PBODUUIS CORPORATION, OIl BUFFALO, NEW YORK enum Application mcd latch 20, 1980. Serial lo. 487,573.

This inventionrelates to improvements in liuid pressure operated windshield cleaners of the type disclosed in my' Patent No. 1,697,358 grantedJ an. l, 1929.

.5 The construction of theV cleaner disclosed in this patent embodies a fixed piston over which moves a reciprocatory cylinder carrying to one side thereof a wiper supporting structure. Means are provided for guiding lo this structure and holding the cylinder from rotation about the piston. The drawings of the patent depict this means as comprising a taut wire or rod stretched substantially parallel to the path of the cylinder and pass- 16'ing through the tubular part of the structure whereby said part would slide along the wire as the cylinder reciprocated. `Being suby ject to rust and the collection of dust thereon, the wire required considerable attention in order to maintain the practical eiciency of the cleaner.

' The present invention has for its primary object to improve the cleaner construction resides in the proviion of guide means carried on the moving portion of the cleaner for acting in cooperation witha wall of the housing for dening the path of movement of such moving portion.

The invention will further be found to reside in the structural features of the cooperative guide elements, their association and mountings, as will appear more' fully hereinafter, reference being had to the aecompanying drawings wherein: Y

Fig. 1 is a perspective view with portions removed, depicting the improved windshiel cleaner construction.

Fi 2 is an enlarged fragmentary view showmg portions in section and other arts in elevation for a clearer disclosure o Athe structural features and arrangements.

Fig. 3 is a transverse vertical section 5, through the cleaner.

Fig; 4 is a detail sectional view throug one of the guide roller mountings. Y

Referring more in detailto the accompanying drawings. the numerals 1 and 2 designate respectively the atmospheric land .low pressure pipes leading to and supporting a cender and pipes, the latter bein with respect to its guided movement, and it trally disposed piston (not shown), and the numeral 3 designates the cylinder which encloses the piston and is slidably supported by the pipes 1 and 2X for reciprocatory movement as the source of low pressure or suction is alternately applied to the opposite ends ofthe e linder by the usual valve mechanism, all o which is more fully set forth' in said patent. v

hehousing or casing 4 encloses the cylinto extended through the ends of the housing or communication with the atmosphere and the source of low pressure. The lower side of the housing is provided with spaced depending flanges 5 constituting the walls of a slotV or guidewa 6.

, e wiper supporting structure comprises a carrier support 7 on which is mounted a pair of carriers 8, each provided with an '1o arm 9 for supporting a wiper blade 10. The carrier support 7 is suspended from the lower side of the cylinder by a pair of bracket arms 11. In practice the heads of the c linder 3 are locked in place by bayonet an slot 75 connections indicated generally by the reference numeral 12, the lugs of these connections being carried by the heads and the lower lug oi each head being extended to form the bracket arms 11 for suspending the support- 80 ing rod V7. Coiled springs 13 hold the wiper blades in firm wiping contact with the windshieldglass, and by reason of the torsional stresses of these s rings the cylinder is urged about its longitu "nal axis, which movement is resisted by the front wall 5 of the guideway 6. In other words, this front wall serves to define the path or course of the wiper carrying structure.

Tracking on this front wall 5 are one or 90 more rollers 14, two of such rollers being herein depicted. Each roller is journaled in a fork or yoke 15 which is attached to an end of the support 7 in a manner to secure the support to its suspension brackets l1. In

the preferred showing the brackets 11 are provided with openings of a suicient size to receive'the adjacent ends of the support and the forks 15 are then secured to the ends of the support, over the brackets 11, to prevent dis lacement of the support therefrom. The7 for are preferably connected to their shanks or stems 16 in a swivel-like manner and at the base of the shanks are collars 17 having a larger diameter than the adjacent ends of the su ort 7 so as to overlie the brackets 11 an impinge against the ends of the support. e s, In assembling the" guide rollers with the wiper carrying structure, 'the support 7 has its ends inserted in the brackets 11, and the shanks 16 are then attached to these ends as by being threaded thereinto, as shown in Fi 4. The guide rollers therefore serve a trip e oice in first guiding the wiper carrying structure in' its movement, second in securin this structure in its assembled relation, an'

` third in resisting rotary movement of the cylinder.

. In operation, the o rating pressure is alternate y applied to t e ends of the cylinder 3 at o posite sides of its inclosed piston so as to reciprocate the cylinder and its wiper carg structure, during which reciprocation gnguide rollers 14 track on the front wall of the housing slot 6. The wipers are therefore held firmly against the windshield glass throughout the extent of travel of the carmember will adjust and accommodate itself to any unevenness' in the track during reciprocatory movement of said support.

2. .A windshield cleaner comprising a reciprocatory member having ,spaced brackets depending therefromand formed with openings, an elongated supporting member hav-L ing. its ends engaged in the openings of said brackets for support, wiper carrying means on said supporting member, means engaging the ends of said supportin member for securing the same against displacement from the4 openings of said brackets, guide means carried by said securing means, and a housing enclosing said reciprocate member and having a guide surface on which said guide means havetracking engagement.

3. A windshield cleaner comprising a reciprocatery cylinder having a pair of depending brackets formed with open' therein, an elongated support having its en engaged in fthe openings of said bracket for being supported by and from said cylinder, a guide roller at each end of the support having a mounting shank threaded into the adjacent end of t e support and acting to secure the of the adjacent bracket, wi r ing means on said support, and a guipde moe for being tracke y said rollers.

4. A windshield cleanercomprising a re ciprocatory member, an elongated support carried thereby, wiper means arranged on the support adjacent each end thereo fixed alongside of the path of movement lof the support, and aguide roller`r arranged at each end of the support for trackingengagement with said track, each guide roller bein mounted tn swivel about an axis lengthwise of thepath of movement of said support.

5. A windshield'cleaner comprising a reciprocatory member having spacedtbrackets extending laterally and formed with re tering openings, a wiper supporting mem r interposed between the brackets, means connected through the bracket openings with the opposite ends of the sup rting member for securing the latter to the rackets, said means bein engaged `with the outer faces of said brac ets, guide rollers carried by said means for swiveling about an axis lengthwise of the path of movement of said .reci rocatory mema track r, and a track extending a ongside of said reciprocatoi'y member for tracking engagement by said ide rollers.

6. A windshield cleaner comprisin a reciprocatory member, a support carri there byand provided at its opposite ends with screw threaded opnin guide rollers for said sup rt, means or sup rting each guide ro ler for movement a ut an axis transversev tothe path of movement of said H reciprocatory member, said means includ a screw threaded shank engaged in the a jacent one of said screw threaded o nngs in said support, said screw thread shank being engaged in its o ning to permit swivelring movement of sai roller mounting means about the axis of said shank, atrack on which said rollers have tracking engagement, said track acting on said rollers to restrict and llimit said roller mounting means against shank-disloding movement, and wiper means carrie by said su rt.

HE Y HUEBER.

latter against displacement from the opening

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