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Publication numberUS2089047 A
Publication typeGrant
Publication dateAug 3, 1937
Filing dateMay 4, 1933
Priority dateMay 4, 1933
Publication numberUS 2089047 A, US 2089047A, US-A-2089047, US2089047 A, US2089047A
InventorsJohn Zrna
Original AssigneeJohn Zrna
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Automobile parking tower
US 2089047 A
Images(4)
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Description  (OCR text may contain errors)

Aug. 3, 1937. 1 ZRNA AUTOMOBILE PARKING'TOWER Filed May 4, 1935 4 Sheets-Sheet 1 rwezzor Weil.

Aug. 3, 1937. v J. 2RM 2,089,041

AUTOMOBILE PARKING TOWER Filed May 4, 1935 4 4 Sheets-Sheet 2 nvezz for.'

Aug. 3, 1937. J. ZRNA 2,089,041

AUTOMOBILE PARKING TOWER' Filed May 4, 1935 4 Sheets-Sheet 3 1 v enfer.-

L/BHN Z RM@ l Aug. 3, 1937. J. zRNA AUTOMOBILE PARKINGA TOWER Filed May 4, 1935 4 Sheets-Sheet 4 noel-Joh.' J/m/ZRNA Patented Aug. 3, `193'] UNITED STATES PATENT oFFlcE AUToMomLE mimmo 'rowlm l John Zrna, Chicago, lll.

Application May 4, 1933, serm'No. 669,389

' 15 claims. (ci. als-16.1)

This invention relates generally to automobile parking towers and has particular reference to new and useful improvements in conveyors and especially elevators having a plurality of movable cages, platforms or supports on which automobiles, or other articles may be stored or conveyed from one point to another.

One of the objects of my invention is to provide an elevator having a plurality of supports or platforms arranged for simultaneous movement in a pair of oppositely movable columns. The movement in said collunns being with a predetermined or constant velocity; said platforms being movable from one column to the other with accelerated speed or velocity attained through mechanical instrumentalities.

Another object of my invention is found in the provision of structural or stationary cam means cooperating with movable means associated with the platform-moving means to erect a predetermined acceleration and deceleration of the cages in their movement from one column to the other. Such structural or stationary cam means may be designed to move said platforms from one co1- umn to the other with a variable. uniformly, or progressively accelerated and decelerated speed, or the movement of the platforms in such transferring operationmay be accelerated to a maximum speed and then maintained at such maximum speed for a period of time and then decelerated to the speed of the platforms in the columns.

Still another object of my invention resides in the provision of intermediate means interposed between the cages and the drive chains or driving means which cooperate with fixed or stationary means so that the path of movement o'i said intermediate means will be guided and controlled to eect a variation in the speed or velocity of the cages in their transfer movement from one column to another, as for instance, the cages or platforms may be accelerated to a predetermined lmaximum. speed and then decelerated to the speed of the cages in the columns.

A further object of the invention is to provide means intermediate the platforms and their propelling chains which intermediate means are pivotally connected to the propelling chains and disposed for movement in a plane different from the plane oi' movement of said chains.

A still further object of the invention is found in the novel construction and arrangement of such intermediate means each of which consists of a member plvotally connected to the propelling chain and to the cages; the pivotal connection to the propelling member being intermediate the free ends of such member and the pivotal connection to the cage being oil'set to the chain pivotal connection; and the free ends of said member having rollers thereon which are adapted to engage deflecting cams to thereby control the speed or movement of the cages from one path to the other.

With the above and other objects in lview, my invention consists in the novel combination, construction and arrangement of the parts and members shown in preferred embodiment in the attached drawings, described in the following speciilcations and particularly pointed out in the appended claims.

Referring to the attached illustrations:

Figure l is a vertical section through a building or structure embodying my invention;

Figure 2 is a vertical section taken on line 2 2 of Figure 3:

Figure 3 is a vertical of Figure 2;

Figure. 4 is a crosssection taken on llne G t of Figure 2, showing the connection of the intermediate member to the cage and propelling chain;

Figure 5 is a cross-section taken on line tof Figure 2;

Figure 6 is a cross-section taken on line 5 6 of Figure 2;

Figure 7 is an enlarged end elevation of the inn termediate member; and

Figure 8 is an end view in reduced scale of a modified construction oi the intermediate member. f

Referring now to the drawings, i@ indicates a structure which includes my improved elevator or conveyor which is generally indicated by numeral I2.

In the illustrations, the invention is applied to an elevator which is disposed vertically and consists of a pair or two sets oi continuous link chains. a plurality of cages or platforms adapted to support automobiles and intermediate means for operatively connecting the cages or platforms to the propelling chains.

The cages move in a circuitous path which, in the present instance, may be considered as a pair of vertical columnsinterconnected at their upper and lower ends to permit the movement or transfer of the cages or platforms at such ends from one column to the other. and the movement of the cages is reversible so that a selected cage may section taken on line 3 3 be caused to move to a loading or unloading sta- 55 tion through the shortest route.

mechanism may be provided for automatically, semi-automatically or manually controlling the movement of the cages, but since such controls are not a part of the present invention, they 'are not illustrated in the drawings.4 v

The cage-propelling link chains I3 consist preferably of pivotally-interconnected links I3^ and rollers I3B to facilitate the movement of such chains in the channel chain guides I4. Each set of such chains I3 is continuously embraced or guided in the vertical colunm movements and in the transfer movements at the ends by a pair of continuous channel members I4.

It will be observed in Figures 1, 2 and 3, that the upper and lower ends of such chain guides I4 are curved, and that the curved ends and the two propelling chains are offset one to the other in the vertical plane.

The propelling flexible means or chains I3 are, in the present instance, provided with a driving mechanism which is operatively connected to such chains at their lower portions, and consists of a motor I5, the shaft of which is coupled with a speed reducer I6 having a drive pinion I1 in mesh'with a gear I8 which is fixed to shaft I9.

The shaft I9 is supported in suitable bearings 20 and at each end carries a bevel gear 2| which is fixed thereto.

The lowermost chain I3 is driven by a sprocket 22 which is fixed to shaft 23 supported in suitable bearings, as for instance, 24 and at one end of shaft 23 is a bevel gear 25 which is fixed thereto.

The gears 2| and 25 are operatively interconnected by a shaft 26 supported in bearings 21 and having fixed thereto a bevel gear 28 which meshes with gear 25, and a gear 29 which meshes with gear 2I.

The other chain I3 is driven by a sprocket 30 which is fixed to shaft 3| supported in suitable bearings, as for instance, 32 and at one end of shaft 3l is a bevel gear 33 which is fixed thereto.

The bevel gear 33 and the bevel gear 2l are operatively interconrected by a shaft 34 supported in suitable bearings 35 and having fixed thereto a bevel gear 36 which meshes with bevel gear 33, and a bevel gear 31 which meshes with bevel gear 2 I.

It will now be readily apparent that the operation of the motor I5 will, through its interconnected transmission mechanism hereinabove described, cause a rotation of the drive sprockets 22 and 30 to thereby propel the chains I3. Obviously, a ,reversible electric motor I5 may be provided ich selectively reversing the movement of chains I3 in their travel within the guides I4.

The cages 38 in the design shown embody a p platform 33A having channeled runways 38B to guide a motor-vehicle thereon. The platform 38A is provided at one end with a channel iron frame 38C and at the other end with a reinforcing, cross-channel 38D. Suitable gusset plates 38E are provided at the connection of the frame 33B to the platform 38A'. Likewise brace members 38F are provided between the platform 38A and a pair of depending angularly disposed supports 3BG. A similar pair of angularly disposed supports 38H is arranged to extend upwardly from the frame 38C.

The cages 38 are pivotally connected and supported at both ends thereof through intermediate means, generally indicated by numeral 40, to the driving or propelling chains I3.

The angularly disposed depending supports 9,089,047 Various types of control for the operating 33. and the upwardly extending angularly disposed supports IIH, are each arranged for common pivotal connection with a pin 4I!A which is securely held in an extended portion 4I)13 of a pivotal member 40. The intermediate member 40 also includes a companion pivotal member 40D of equal length.

The pivotal members 400 and 40D are interconnected at their ends with pins 40E, each having a roller 401' mounted thereon.

The pivotal member 40D is provided with an extended pin 40G reinforced with a pair of longitudinally extending rib portions 40H.

The pin 40G forms a pivotal support for one of the rollers |313 of the propelling chain I3. so that the intermediate member 40 is pivotally connected relatively to and with the propelling chain I3. l

The pivotal pins 40A and 4IlG are centrally disposed relatively to the members 49 and 40D and are offset and not aligned with one another longitudinally of the members 40C and 40D.

In the design of elevators of the type shown herein, it is very desirable to mount the cages or platforms 38 as close together as possible and yet permit the transfer movement of the cages or platforms from one vertical column to the other without interference of the cage being transferred with either of the adjacent cages and therefore one of the important objects or features of this invention is found in the provision of the intermediate means 40 which are interposed between the cages or platforms 33 and the chains I3 which impart movement to the cages, and which intermediate means 49 cooperating with cams 39 permit such close mounting of the cal runs substantially parallelly with the chain guides I4.

In order to vary the speed and control the movement of the cages 33 in and during their transfer from one vertical column to the other, simultaneously with the movement of the cages in such vertical columns, the upper and lower portions 39A of the channels 39 are designed to function as cams for the intermediate means rollers 4BP to thereby cause pivotal movement of such intermediate means about the pins 40G whereby the speed and movement of the cages or platforms 38 will be varied and controlled. I

Such load supporting cams 39A may, obviously, be so designed or arranged or spaced to extend into suitable planes to so guide the rollers 4IIF to produce various predetermined speeds or movements of the cages during theirtransfer, and I, therefore, do not wish to be understood as limiting myself to the particular form or arrangement of such cams 39A shown for purposes of illustration in the attached drawings.

In the modification shown in Figure 8, the inl 1, A conveyor comprising a plurality of plat- 75 forms simultaneously movable in opposite directions in two interconnected paths, means for moving said platforms, intermediate means interposed between said platforms and said platformmoving means, said intermediate means being movable independently of saidplatform-moving means and being disposed for movement in a plane diilerent from the plane of movement of said platform-moving means, and means for controlling the movement of said intermediate means whereby said platforms will be moved from one path to the other path with a variable speed. l

2. A conveyor comprising a plurality oi platforms simultaneously movable in opposite directions in two interconnected paths,'means for moving said platforms, intermediatemeans interposed between said platforms and said platformmoving means, said intermediate means being movable independently of said platform-moving means and being disposed for movement in a plane different from the plane of movement of said platform-moving means, and means for controlling the movement of said intermediate means whereby said platforms will be moved from one path to the other path with an accelerated and then 'decelerated velocity.

3. A conveyor comprising a plurality of platforms simultaneously movable in opposite directions in two interconnected paths, means for moving said platforms, intermediate means interposed between said platforms and said platformmoving means, said intermediate means being movable independently of said platform-moving means and being disposed for movement in a plane different from the plane of movement of said platform-moving means, and cam-like guiding means for controlling the movement of said intermediate means whereby said platforms will be moved from one path to the other path with a velocity accelerated to a predetermined speed which is maintained for a period of time and then decelerated to the speed of the platforms in said paths.

4. A conveyor comprising a plurality of supports simultaneously movable in opposite directions in a pair of vertically disposed columns, flexible means for moving said supports, powerdriven means for propelling said flexible means, intermediate means interposed between said supports and said iiexible means and pivotaliy connected to said supports and to said flexible means, and means cooperating with said intermediate means -for causing said supports to move with an accelerated and decelerated velocity during their transfer movement from one column to the other column, said intermediate means being movable in a plane diierent from the plane of movement of said flexible means.

5. A conveyor as embodied in claim 4, wherein said means cooperating with said intermediate means comprises stationary means adapted to cause a movement of said intermediate means relatively to said supports during the transfer of said supports from one column to the other.

6. A conveyor comprising a plurality of supports arranged for simultaneous movement in a circuitous path, means for moving said supports, means including power-driven means for propelling said support-moving means, intermediate means having a single pivotal connection with,

said supports and with said support-moving means, and means adapted to be engaged by said intermediate means at a predetermined location in a circuitous path whereby the velocity of said supports will be increased and decreased during the movement of said supports in a predeter-` mined location in the path of movement of said supports.`

7. A conveyor as embodied in claim 6, wherein said pivotal connections of said intermediate means are offset transversely to the longitudinal axis of said intermediate means.

8. A motor-vehicle parking tower comprising a pair of endless chains, motor-driven means for propelling said chains, guiding means for said chains, a plurality of cages each adapted to support a motor-vehicle, said cages being movable in opposite directions in a pair of columns and from one column to the other, a plurality of movable instrumentalities, each oi said instrumentalities having a pivotal connection with one of said chains and a separate pivotal connection with one of said cages, and guiding means for said instrumentalities independent of said chain-guiding means, said guiding means for said instrumentalities being arranged to causev a movement of said cages from one column to the other with a velocity different from the velocity of the cages in said columns by controlling and changing the path movement of said instrumentalities.

9. A conveyor comprising a plurality of supports arranged for movement in a circuitous elongated path, means for moving said supports, intermediate means having a single pivotal connection with saidl supports and with saidsupport-moving means, guiding means for said support-moving means, and separate cam-like guiding means for said intermediate means for controlling the movement of said intermediate means whereby the speed of said supports is increased and decreased in their movement between their positions in the extreme ends of the elongated circuitous path.

10. A conveyor as embodied in claim 9, and including said separate guiding means for said intermediate means comprising stationary extended cam-like structures engaged by said intermediate means and adapted to gradually tilt said in. termediate relatively to said support-moving means to thereby cause the variations in the speeds of said supports.

11. A conveyor as embodied in claim 9, and including said separate guiding means for said intermediate means comprising stationary extended cam-like structures engaged by said intermediate means and adapted to gradually tilt said intermediate relatively to said support-moving means to thereby 'cause the variations in the speeds-of said supports, said stationary cam-like structures being so arranged that in each half of said circuitous elongated path, the distance oi said structures from said platform-moving means will be gradually increased to a maximum and then gradually decreased to the minimum.

12. A conveyor comprising a plurality of supports movable in a circuitous path, means for moving said supports comprising a pair of spaced endless chains having opposite portions moving in opposite directions in xed parallel paths, means for guiding said support-moving means in a fixed path, intermediate means comprising members pivotally mounted to said support-moving means, rollers at the ends of said members, extensions from said members disposed intermediate the ends of said members, each of said extensions being pivotally connected to one of said supports, said intermediate meansbeing movable relatively'to said supports and `to said-supportmoving means, and means cooperating with said intermediate means for causing the relative movement of said intermediate means in predetermined portions of said path including guides for guiding said rollers.

13. In a conveyor including a plurality of supports movable in a circuitous path, means for the movement of said platforms relatively( to the movement of said platform-moving means.

14. The combination in a conveyor as embodied in claim 13, and including rollers on the ends of said extensions which rollers engage said separate guiding means, and wherein said rollers are disposed on a straight line intersecting the connection of said intermediate means with said platform-moving means, and wherein the connections for said intermediate means with said platforms are oiset relatively to said connections for said intermediate means with said platformmoving means.

15. A conveyor comprising a plurality of supports movable in a circuitous path, means for moving said supports including a pair of spaced endless chains having opposite portions moving in opposite directions in fixed parallel paths, means for guiding said chains in a xed path, intermediate means comprising members pivotally mounted to said chains, rollers at the ends of said members, extensions from said members disposed intermediate the ends of said members, each of said extensions being pivotally connected to one of said supports, said intermediate means being movable relatively to said supports and to said chains, and stationary means cooperating with said intermediate means for causing the relative movement of said intermediate means in predetermined portions of said path comprising continuous guides for guiding said rollers.

JOHN ZRNA.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2619239 *Jul 14, 1947Nov 25, 1952Hild Jr Mark WElevator
US2713413 *Feb 24, 1948Jul 19, 1955Long CompanyConveyor drive
US2773609 *Oct 24, 1952Dec 11, 1956H E Beyster & Associates IncAutomobile parking machine
US2955718 *Dec 3, 1957Oct 11, 1960Frank G CampbellAutomobile hoists
US3014602 *Dec 19, 1960Dec 26, 1961Gronvold George BAutomobile parking and storage apparatus
US3197045 *Sep 12, 1962Jul 27, 1965Alan S AxelrodConveyor elevator apparatus
US3424321 *Jul 14, 1965Jan 28, 1969Harold G GobleStabilizing and drive means for a parking apparatus
US3593862 *Jun 27, 1968Jul 20, 1971Cutler Hammer IncInterfingering endless elevator and conveyor apparatus
US5425442 *Feb 25, 1994Jun 20, 1995Howard M. LawnDrive system for a vertical storage conveyor
DE1051483B *Nov 23, 1954Feb 26, 1959Mobile Parking S AGarage mit Stockwerken und an endlosen umlaufenden Foerderketten pendelnd aufgehaengten Kaesten oder Plattformen
DE1064711B *Nov 23, 1954Sep 3, 1959Mobile Parking S AFoerderkette mit in Abstaenden pendelnd aufgehaengten Gondeln fuer Garagen
WO1994016176A1 *Jan 12, 1994Jul 21, 1994Computower Tech CorpVertical storage conveyor with symmetrical motor drive system
Classifications
U.S. Classification414/251, 198/799
International ClassificationE04H6/14
Cooperative ClassificationE04H6/14
European ClassificationE04H6/14