US2398963A

US2398963A - Mechanical movement

Info

Publication number: US2398963A
Application number: US542670A
Authority: US
Inventors: Emile C Reutlinger
Original assignee: Individual
Current assignee: Individual
Priority date: 1944-06-29
Filing date: 1944-06-29
Publication date: 1946-04-23
Anticipated expiration: 1963-04-23

Description

E. c. REUTLINGER MECHANICAL MOVEMENT Filed June 29; 1944 April 23, 1946.

the cooperating parts in one position Patented Apr. 23, 1946 MECHANICAL MOVEMENT mile O. Reutlinger, Somerville, Mass, assignor of one-half to Joseph P. Hussar, Weymouth Landing, Mass.

App ication June 29, 1944, Serial No. 542,670

; Claims.

This inventionv relates to improvements in mechanical movements for convertinga contin-, uous rotary movement into intermittent rotary movements such as are employed in display stands where a rotating table carries a number of-articles and is so. actuated as to dwell atv uniform intervals at suflicient length of time to enable the articles to be inspected by an observer.

The. invention also is adapted to convert a continuous rotary movement into an intermittent movement which may be employed intermittently to driveother mechanisms or for any other purposes requiring uniform intermittent movements.

I am aware. that continuous rotary movements have been converted"v into intermittent rotary movements by the well-known Geneva stop mechanismand other devices such as, are employed inintermittently moving films :of moving picturecameras and projecting ap aratus which are .ofsomewhat delicate and complicated construction.

The object of the present invention is to provide a simple and economically constructed mechanism of rigid nd durable. character which insure practically uniform intermittent movements of either light orheavy mechanisms and accurate predetermined uniform periods of dwell.

These and other objects and features of the invention will more fully appear from th following description andthe accompanying drawing'and will be particularly pointed out in the claims. I

Anillustrative embodiment of the invention is shown in the accompanying drawing as applied to a rotating disk or table upon which articles of merchandise or the like are displayed.

In the drawing: a

Fig. 1 is a plan view of a rotating table, continuously driving mechanism therefor, and means for imparting .uniiorm intennittent rotary movements to the table, illustrating the position of during the transmission of rotary movement to the table;

2 is .a similar plan view illustratin the position of the parts during the period of dwell and the manner in which the table is locked against rotary movement during that period;

Fig. 3 is'a vertical sectional View on line 3-3 Fig. 1;

Fig. 4 is an end view of thecylindrical driving member having means adapted to cooperate successively with. studs arranged in equally space rotatable table; and.

relation upon andproiecting normall from the a vertical sectional ew on ine 5*5 in the-base 5 and is firmly clamped thereupon by a nut 1 preferably located in a recess countersunk from the under face of the base 5. 'In the construction illustrated the shaft 3 extends a suitable distance above the upper face of the table and is held in place by a sleeve 8 which fits upon the shaft with its lower end engaging the table and its upper end portion enga ing a collar 9 which is pinned to the shaft If desired suitable antifriction means, (not shown) may be introduced between the lower end of the sleeve-and the table and also between the hub 2 and the bearing 4., A circular series of equally spacedpreferably cylindrical studs III are fixedly secured to the table at equal radial distances from th axis of theshaft 3 and projectvperpendicularly therefrom. Desirably; the studs ID are provided with suitable tapered end portions I l forpurposes hereinafter described.

The continuously actuated driving mechanism comprises a cylinder l2. which-is mounted upon a shaft l3 which is parallel'to the plane of rotation of the rotatable driven member and has a recess or plurality of equally spaced transverse recesses l4 having walls l5 extending in parallelism with the axis of the driving member and projections IS on said cylinder extending beyond the fiat end I! of thecylinder in alinemcnt with the wall of said recess. The axis ofv rotation of the continuously rotating driving member is positioned in such angular relation to the axis of rotation of the driven member or table and at such distance therefrom that during the rotation of the driving member the projection 16 ofythe advancing wall will engage the stud l0 and thereby rotate the driven member at, a substantially other mechanisms projecting end l6 of the wall 15 of the slot 14 engages the stud at a distance below the crest of circular movement of the stud-engaging wall and during further movement travels upon the stud toward the plane of rotation of the driven member thereby tending to increase the speed of rotation of the driven member until the advancing wall reaches the crest of its movement and thereafter decreases the speed of movement of the driven member until the stud emerges from the slot in the driving member. However, during such movement the stud upon the driven member traverses inwardly upon the surface of the advancing wall l of the driving member partially across the length thereof as the wall approaches the crest of the arc of movement of said wall and thereafter traverses outwardly along said wall until the stud emerges from the slot in the driving member. As a consequence of these movements the intermittent rotation of the driven member is for all practical purposes uniform.

An important feature of the invention consists in providing means for positively locking the rotating table against movement during the periods of dwell. This is accomplished by so constructing the studs on the driven member and so spacing the studs that upon emergence of the stud which is engaged by the advancing wall l5 of the driving member from the recesses therein that the tapered end of the stud will engage the cylindrical surface of the driving member and at the same time the next succeeding stud of the driven member will engage the flat face H of the driving member, as shown in Fig. thereby locking the rotating driven member against overthrow and also against retrograde movement during the period of dwell.

For convenience in manufacture and lightness in construction the cylindrical driving member is of hollow cylindrical form having at one end a web l8 which is fixedly secured upon the shaft l3 and is parallel to the fiat cylindrical surface of the end ofthe cylinder which is engaged by the stud next succeeding the driven stud during the period of dwell. V

Any suitable means may be provided for rotating the driving member ata desirable speed of revolution. As illustrated in the accompanying 1 drawing the shaft of the driving member is mounted in suitable bearings in a gear casing l9 and is driven through suitable: gearing, preferably reduction gearing (not shown), from an actuating shaft 20 which desirably is rotated by a suitable electric motor or by any other source of power.

The driving member may be provided with any desirable number of diametrically opposite recesses as illustrated in Fig. 4, or any other suitable number of recesses with the studs of the driven member suitably positioned and spaced to provide for the desired intermittent rotation of the driven member.

While the invention is herein illustrated and described asapplied to a rotating display table it is obvious that the driven member may be of any other kind such as a gear for intermittently driving other mechanisms or for actuating such for which the invention is adapted.

It will be understood therefore that the particular embodiment of the invention herein shown and described is of an illustrative character and that various changes in construction and arrangement of parts may be made within the spirit and scope of the following claims.

said driving member and Having thus described the invention, what is claimed as new, and desired to be secured by Letter Patent, is:

1. A mechanical movement comprising a uniformly rotatable cylindrical driving member having a transverse recess provided with a wall extending in approximate parallelism with the axis of the driving member and a projection on said cylinder extending beyond the endthereof in alinement with the wall of the recess, a driven member rotatable in a plane parallel to the axis of provided with a circular series of studs, theaxis of rotation of said driven member being so positioned in offset angular relation to the axis of the driving member as to cause said studs to be successively engaged by said projection and caused to traverse inwardly and outwardly along said projection and the wall of said recess during the continuous rotation of said driving member thereby to impart substantially uniform intermittent rotative movements to said driven member. q

2. 'A mechanical movement comprising a uni formly rotatable cylindrical driving member having 'a fiat endv and a transverse recess provided with a wall extending in approximate parallelism with the axis of the driving member and an integral projection on said cylinder extending beyond the end thereof in alinement with the wall of said recess, a driven member rotatable in .a plane parallel to the axis of said driving member and provided with a circular series of studs, the axis of rotation of said driven member being so positioned in offset angular relation to the axis of the driving member as to cause said studs to be successively engaged by said projection and caused to traverse inwardly and outwardly along said projection and the wall of said recess during the continuous rotation of said driving member thereby to impart substantially uniform intermittent rotative movements to said driven'member, said studs being so constructed as to engage the cylindrical surface of the driving member upon emergence from said recess thereby preventing retrograde movement ofthe driven member.

3. A mechanical movement comprising a uni-- formly rotatable cylindrical driving member having a flat end and a transverse recess provided with a wall extending in approximate parallelism with the axis of the driving member and anfintegral projection on said cylinder extending'beyond the end thereof in alinement with the wall of said recess, a driven member rotatable in'a plane parallel to the axis of said driving member and provided with a circular series of studs, the axis of rotation of said driven member being so positioned in ofiset angular relation to the axis of the driving member as to cause said studs to be successively engaged by said projection and caused to traverse inwardly and partly outwardly along said projection and the wall of said recess during the continuous rotation of said driving member thereby to impart substantially uniform intermittent rotative movements to said driven member, said studs being so constructed as to engage the cylindrical surface of the driving member upon emergence from said recess thereby preventing retrograde movement of the driven member, and said studs being so spaced apart that the next'succeeding stud will engage the hat end of the cylinder and lock the driven member against rotation during the dwell of said intermittent movement.

4. A mechanical movement comprising a uniformly rotatable cylindrical driving member having a fiat end and a plurality of uniformly spaced recesses each provided with a wall extending in parallelism with the axis of the driving member and a projection on said cylinder extending beyond the flat end thereof in alinement with the wall of said recess, a driven member rotatable in a plane parallel to the axis of the driving member provided with a circular series of equally spaced studs with the axis of rotation of the driven member so positioned in offset angular relation to the axis of the driving member as to cause successive studs to be engaged by said projection and caused to traverse inwardly and outwardly along said projections and the walls of the respective recesses during the continuous rotation of the driving member and thereby impart substantially uniform intermittent rotative movements to said driven member, the studs being so constructed and spaced apart that upon emergence of a driven stud from the recess it will engage the cylindrical surface of the driving member and the next succeeding stud will engage the flat end of the driving member thereby locking the driven member from rotative movement during each dwell of said intermittent movement.

5. A mechanical movement comprising a uniformly rotatable cylindrical driving member having a fiat end and diametrically opposite transverse recesses each provided with a wall extending in parallelism with the axis of the driving member and a projection on said cylinder extending beyond the fiat end thereof in alinement with the wall of said recess, a driven member rotatable in a plane parallel to the axis of said driving member and provided with a circular series of five studs with the axis of rotation of said driven member so'positioned in offset angular relation to the axis of the driving member as to cause successive studs to be engaged by said projections and caused to traverse inwardly and outwardly along the projections and the wall of the recess during the continuous rotation of the driving member and thereby impart substantially uniform intermittent rotative movements to said driven member, each stud being of such length and so tapered that upon emergence from the recesses of the driving member it will engage the cylindrical surface of the driving member and the next succeeding stud will engage the flat end of the driving member thereby locking the driven member against rotative movement during each dwell of said intermittent movement.

EMILE C. REUTLING ER.