US2118955A - Power translating mechanism - Google Patents

Description

May 31; 1938 c. R. vlcK 2,118,955

POWER TRANSLATING MECHANISM Filed Maron 14, 1935 :www

Patented May 31, 1938 UNITED STATES PATENT oFFlcE 2 Claims.

'I'his invention relates to the class of power translating mechanisms and pertains particularly to an improved mechanism for translating a continuous rotary motion to oscillatory motion.

5 The primary object of the present invention is to provide an improved form of mechanical movement whereby continuous rotary motion may be smoothly translated into oscillatory movement and whereby the degree of oscillatory movement may be finely regulated without interfering with the rotating driving elements.

Another object of the invention is to provide a novel power translating mechanism of the character above set forth which has a minimum of moving parts and which is of such a character that it may be housed in an oil bath and changes made in the parts for altering the degree of oscillation, from the exterior of the housing.

The invention will be best understood from a consideration of the following detailed description taken in connection with the accompanying drawing forming part of this specification, with the understanding, however, that the invention is notconflned to any strict conformity with the showing of the drawing but may be changed or modified so long as such changes or modications mark no material departure from the salient features of the invention as expressed in the appended claims.

Figure 1 is a view in side elevation of the mechanism embodying the present invention.

Figure 2 is a view in longitudinal section through the structure, as illustrated in Figure i.

Figure 3 is a vertical transverse section taken on the line 8 3 of Figure 1.

In the illustration of the present invention, the same has been shown per se, that is, without connection with a driving means or any specinc mechanism to be driven by the oscillating element through which the power from the driving mechanism is transferred. The present invention is applicable to many types of machines, such as windmills, washing machines, pump jacks, or any other machine where it is desirable to operate an oscillating element from a continuously driven rotary element.

Referring more particularly to the drawing wherein like numerals of reference designate corresponding parts throughout the views, the mechanism is illustrated mounted upon a carrying bracket or frame, which is indicated as a whole by the numeral I, and which may represent portions of the walls of a housing or merely a supporting unit by which the mechanism may be attached to any support convenient to the machine in association with which it is to be used. The structure I, which will be referred to 'generally as a frame, comprises a horizontal portion 2 and parallel end portions 3 which may be either vertically or horizontally disposed according to the position in which the top part 2 of the frame is mounted.

The ends or walls 3 of thel frame are formed to provide or are provided with bearings 4 through which extends a shaft 5, one end of which ex- 10 tends beyond the frame structure i forv connection with a suitable driving mechanism, not shown. The rotatably mounted shaft-5 has slidably mounted thereon the sleeve 6 which at one end carries theV peripherlally grooved collar l. It The wall 3, adjacent 'the collar l, has a screw 8 threaded therethrough which carries the head 9 upon its outer end and at its inner end is swivelly coupled with the arm portion I0 forming-a lateral extension of a fork II which engages in the 20 grooved collar l. By rotating the threaded screw S so as to eilect its longitudinal movement, the sleeve 6 is caused to slide upon the shaft 5.

Encircling the shaft 5 is a wheel l2, the periphery of which is provided with the groove i3. 25

.The shaft 5 carries the alined radially extending spokes I 4 which are pivotally coupled with the wheel I2 so that the latter is maintained with the shaft extending through its axial center but is permitted oscillatory movement relative to the 3c shaft so that the plane in which it lies may be altered from a position at right angles yto the shaft 5 to an acute oblique position relative to the shaft. This alteration in the position of the grooved wheel l2 is e'ected through the medium as of the link I5 which couples an ear it carried by the sleeve t, with an ear il carried by the wheel i2.

Extending through the bearing i8, carried by the portion 2 of the frame i, is a shaft Iii which 40 constitutes the driven shaft of the mechanism and this connects with the large fork 2U which partially encircles the periphery of the grooved wheel I2 and which carries the inwardly directed fingers 2i, which slidably engage in the groove I3. These fingers may be in the form of rollers suitably rotatably mounted on the ends of the fork 20 so that the friction created through their contact with the wheel '2li will be reduced to a minimum when the parts are moving. 50

From the foregoing itL will be readily apparent that with the mechanism herein described, adjustment of the parts may be smoothly made from a point where theI shaft 5 may rotate without moving the driven shaft I9, to a point where 56 the driven shaft may be caused to alternately turn through substantially a half revolution.

It will be observed that a portion of the sleeve 5 is extended a substantial distance beyond the spokes Il of the wheel I2, as indicated by the numeral 22. 'I'his serves to prevent the wheel I2 from coming into contact with the rotating shaft 5 when the wheel is oscillated to the extreme oblique position relative to the shaft 5. When in this position the opposite side of the wheel will contact with the sleeve 6 at the inner end of the extended portion thereof.

From the foregoing it will be readily apparent that the degree of oscillation of the driven shaft I9 may be accurately controlled and changes made therein while the mechanism is in motion, merely by altering the position of the screw 8 so as to effect the sliding movement of the sleeve 5 on the driving shaft 5.

Having thus described the invention, what is claimed is:- i

1. A power translating mechanism, comprising a drive shaft, a driven shaft in angular relation therewith, a wheel having the drive shaft passing through its axial center, a pivot pin passing transversely through the drive shaft and connected at its ends with opposite sides of the wheel whereby oscillation of the wheel on the shaft is permitted, the wheel having a circumferential peripheral groove, a fork connected with said driven shaft and receiving said wheel between its ends, members carried by the ends of the fork disposed in said groove of the wheel permitting the rotation of the wheel in the fork, a sleeve mounted upon the drive shaft and having longitudinal movement thereon and having an integral semi-cylindrical end extension extending across and engaging the pivot pin whereby the pin effects rotation of the sleeve with the drive shaft, a, circumferentially grooved collar integral with the other end of the sleeve, a post formed integral with the sleeve and projectingradially therefrom, a relatively long link pivotally coupling the outer end of said post with the wheel adjacent the periphery of the latter whereby oscillation of the wheel may be effected to the pointv of bringing the periphery thereof in contact with said sleeve, a shifing fork engaged in the groove of said collar, and means free of connection with the drive shaft but movable in a path extending longitudinally thereof for effecting the shifting of the last mentioned fork and the oscillation of the wheel.

2. A power translating mechanism comprising, in combination, a drive shaft, a wobble plate mounted on said shaft for angular adjustment relative thereto, a driven shaft perpendicular to lar adjustment whereby a minimum force is required to hold said wobble plate in its adjusted position, and means eccentric of the drive shaft for adjusting said member longitudinally of the drive shaft.

CARL R. VICK.

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