Патент USA US2128878код для вставки
Aug. 30, 1938. I E.‘ c. HORTON 2,128,373 WINDSHIELD CLEANER CONTROL MECHANISM Filed Marfch 22, 1955 Fig). 1 . § 24 49 12' asma?s; INVENTO'R ‘- Patented Aug-3o, f 2,128,878 ' UNITED STATES ‘PATENT OFFICE 2.128.818 wmpsmnnn CLEANER coNraoL MECH ~ ANISM Y Erwin O. Horton, Hamburg, N. Y., assignor to Trico Products Corporation, Bu?alo, N. Y. Application March 22, 1935, Serial No. 12,522_ 2Glaims. This invention relates to an automatic wind; shield cleaner and primarily to an improved con trol for the motor of the same. The present day motor vehicle is equipped with (.01; 121-142) passage I2 being connected to the source of suc tion, such as the intake manifold of the motor vehicle engine, by suitable tubing. The chamber Ibis provided with a movable wall M which is 5 a windshield cleaner which is mounted within the subjected at its inner' side to the low pressure in fabricated structure of the body so that anyreg ?uence in thechamber and at its outer side to ulation in the speed of operation of the cleaner , the outside atmospheric pressure, such communi necessitates the removal of a body panel and requires the services of a mechanic. 10, = The object of the present invention is to pro vide a windshield cleaner which is more satis ‘ facto'ry in operation. It comprehends bringing cation with the'outside atmosphere being estab lished through ports I 5 in a cover plate l6.- The movable wall is thus acted upon by a pressure dif-' 10 ferential and, when the pressure in the chamber -II is of a predetermined low value, responds the regulation of the cleaner speed under the con . thereto by moving toward the valve seat ‘l3 to trol of the motorist, so that he may adjust the throttle and restrict the )passageltherethrough. 15 speed of operation of the wiper back and forth This results in the modi?cation ‘of the degree of 15’ across his line of vision to suit his particular de low pressure available at the control valve 3 for sire; and further, the invention comprehends the - the operation of the windshield cleaner motor. embodiment'of such regulator in a common con To insure a more accurate valve action by the trol unit with the means for rendering operative _ movable wall, a valve plate I‘! is interposed be 20 and inoperative the cleaner.‘ tween the sameand the valve seat, such plate In the drawing depicting. one embodiment of being adapted for movement with the movable the invention, Fig. 1 is a fragmentary showing in wall toward the seat. The composite valve thus ' plan of a windshield cleaner embodying the pres formed is urged away from the seat by a spring l8 which is conveniently disposed in the outlet ent invention; a ' Fig“. 2 is a front elevation thereof, and ‘passage l2 and bears at its outer end on the 26 25 Fig. 3-is a detailed sectional view of the regu ‘valve plate l'l, while its opposite end is seated lator or governor. _ ' Referring more particularly to the drawing wherein is illustrated'by preference a ?uid oper 30 ated windshield cleaner of a well-known con struction, the numeral l designatesthe cleaner motor embodying a piston (not shown) movable back and forth in a chamber by a ?uid pressure ' differential which is alternately reversed through upon a regulating screw l9. This screw is threaded into the housing III of the regulator for adjustment and therefore, by turning the screw l9 clockwise orv counter-clockwise, the tension of 30 the spring I 8 will be correspondingly increased or decreased. The spring therefore will urge more orless upon the valve plate IT to! resist Con- » 36 ‘ valve mechanism contained in a housing 2, the - sequently the'pressure differential required to 35 mechanism being opened to a source of low pres throttle the suction passage through the regu sure through a shut-off valve generally indicated at 3. Such’ a windshield cleaner motor con struction is shown in Patent No. 1,840,233, grant 40 ed January 5th, 1932 to. Henry Hueber. Accord-_ ing to the present disclosure the stem 4 of the shut-01f valve 3 is connected to one arm of a bell movement of the latter toward the seat I 3. lator may be varied and determined to regulate the speed of the windshield cleaner for faster wiping or slower, as the motorist may desire. The adjustment of the regulator, as well as 40 the on-and-oif movement of the shut-off valve, is. brought under a single control and vrendered crank lever 5 by a pin and slot connection ‘SJ accessible to the motorist so that by a simple The bell crank lever, being pivoted at 'l on the manipulation, the windshield cleaner may be 45 motor casing, has its opposite arm 8 extended to started, stopped or regulated to the desired speed be rocked by the control hereinafter referred-to. of operation vas the motorist may dictate. Ac Fluid communication between the shut-oi! cording to the present disclosure this control is valve and the source of suction or. low pressure illustrated as being of ‘the remote type, and '50 is established by passage 9 which leads through embodies a push-‘pull wire 20 housed within a ' a speed-regulator or governor member generally ?exible armor 2| and provided at its outer end indicated at M. This regulator may be of any _ with ya knob or button “by which the wire may suitable construction and is herein illustrated as have longitudinal movement imparted thereto, as , comprising a casing having a chamber ll into ‘ which passage 8. opens and from which leads'a as second passage I! through a valve seat It, the well as rotational movement. , Rotary movement of the wire is utilized to turn the regulating screw II and thereby adjust the 55 2,128,878 ~ 2 urge of the spring l8. 'To this end, the control obvious that the regulation of the cleaner opera tion will be more satisfactory to the particular wire is provided with a tubular end coupling or sleeve 23 which receives the outer end of the regulating screw l9 and is keyed thereto by a radial pin 24 on the screw ?tting into a longi motorist and that the changes in the operation readily may be accomplished. tudinal slot 25 in the sleeve. This arrangement connects the regulating screw to the wire for imparted rotational movement but permits axial or longitudinal movement of the wire independ 10 ently of such screw for rocking the bell crank lever 5, ‘I. For this purpose the coupling mem actuating part and the companion means having a rotatable actuating part, a. control common to 10 ‘ both means whereby the cleaner may be regulated ber 23 is provided with an annular groove 26 to receive the outer end of the arm 8, which may be forked if desired, so that .endwise movement to 15 the wire 20 will rock the bell crank lever and in its speed of operation as well as started and stopped therefrom, said common control embody ing a rotatable member mounted for bodily movement, means connecting the member to the 15 accordingly move the shut o?f valve 3 to a closed or open position. The outer end of the ?exible armor 2| may be given substantial sup port from the motor casing by a bracket 21 or 20 it may be otherwise supported in an accessible second actuating part for imparting rotational movement thereto, said connecting means per mitting limited bodily movement of said member independently of the second actuating part and connected to the ?rst actuating part for moving 20 the latter during such bodily movement whereby the operation of the motor may be concurrently regulated and controlled,‘ and means supporting the control from the motor for mounting and position. The inner end of the ?exible armor is secured to the motor casing by an anchor clip 28. ‘ This assemblage adapts the entire cleaner as a unit for convenience in mounting and installa 25 tion in the motor vehicle body. demounting as a unit therewith. In operation, the normal or imposition of the 2. A windshield cleaner unit having a wiper operating motor with a power shut-01f member and a speed regulating member, both of said members being mounted on said motor and one of said members being rotatable and the other 30 reciprocable, a ?exible push-pull control mounted also for rotatable movement, a pin and slot con nection between said control and the rotatable member connecting the two elements for rota knob 22 preferably will be‘the shut-off position for the windshield cleaner. Therefore to start the cleaner in operation, it is simply necessary 30 to pull out on the control knob and thereby rock the bell crank lever clockwise, in Fig. 1, to open the shut-off valve 3. The cleaner operation may be adjusted faster or slower by'simply turning the knob 22 clockwise or counter-clockwise until 35 the desired speed is obtained without disturbing the shut-o? valve. ' What is claimed is: 5 1. A windshield cleaner unit having a motor with power shut-off means and speed regulating means, one of the means having a reciprocable tional movement and permitting relative lineal The pin and slot connection movement, and an armor for the ?exible control permits lineal movement of the push-pull control for guiding the latter in its rotary and longitudi ‘nal movements, said armor being rigidly sup for actuating the shut-off valve and also lineal movement of the adjusting screw during rota ' ported at both ends from the motor, whereby the unit may be mounted and demounted as an 40 40 tion of the latter. Thus placing the two regu lating instrumentalities under a single control entirety. . which is readily accessible to the motorist, it is ' ' ERWIN C. HORTON.