US1828913A

US1828913A - Automobile jacking device

Info

Publication number: US1828913A
Application number: US392458A
Authority: US
Inventors: Jeremiah F Toomey; Joseph F Mcnally
Original assignee: Individual
Current assignee: Individual
Priority date: 1929-09-13
Filing date: 1929-09-13
Publication date: 1931-10-27
Anticipated expiration: 1948-10-27

Description

Oct. 27, 1931.A J. F. TooMEY ETAL AUTOMOBILE JACKING DEVICE Filed Sept. 13. 1929 Z/ LY v nvmtoz yA-WM. 7'. Dmm y M i. menta.,

3513 MW @lum/mmf 30 showing the thrust-rod in cross section.

Petented Oer. 27, 1931 PATENT OFFICE UNITED STATES r. roomy, onnnw Yoan, am) .Tosnrx r. ucNALLY, ornnooxmm, Naw Yonx v .'Aurouonrnn Jacxmc Davrcn Appuemen med september 1s,"1s2s .^"ser1a1ne. 392,458.

This invention relates more es eciallyto lifting jacks for automobiles and as for its objectto rovide a device of this character of improv construction to adapt it to engage g the art to which it is applied with a positive y interlocking connection.

One of the objects of our invention is ,to provide a lifting jack of the character herelnafter described with an improved interv locking connection of which all of the parts Certain subsidiary eatures of construction y au are described in'the followin specification and recited in the appended c aims in reference to the accompanying drawings which show a preferred embodiment of our invention.

j. In the drawings Figure 1 is a combined side elevation and vertical section of our improved device as applied to a vehicle such as an automobile.

Fi 2 isa top plan view of the same Referring more particularly to the drawings, in the embodiment of our invention shown therein, an extension 1 of the side bar of an automobile is connected by a pin 2 with one end of a sprin 3. A transverse buffer bar 4 may be hel in a recessed bracket 5 by means of a flat plate or flange of a socket member 6 which is secured to the bracket 5 by means of screws 7. The socket member 6 is provided with a socket opening'iS around the bottom end of which extends an annular pasrt-spherical bearing) surface 9. As shown t inFigure 2, .the Y racket or socket member 6 is also provided with a longitudinalslot 10 which opens inwardly into the socket opening 8 and outwardly through the outer edge of the bracket 6. Movable laterally through `the slot 10 is the up r shank ortion 11a of a thrust rod 11 whlc is provi ed on its lower end with exterior screw-threads 12. Said vided with an annular 27 which is interposed between said ball an thrust rod is thus adapted to be threaded into matching screw-threads 13 which are formed mteriorly in the upper portion of a tubular base or pedestal 14, saidbase or pedestal bein provided with a bottom flange or foot 15 an a top flange or shoulder 16, Secured to the lower end of the thrust-rod '11 by means of a pin 17 isa collar 18 which is adapted to come into abutment with an annularshoulder 19 formed on the inner' wall ofthe tubular pedestal 14 at the lower end of screw-threads 13. The upper end 11a ofthe thrust-rod is made with a reduced diameter and at the top carries a cross-bar or handle 20 which is releasably secured thereto b a pin 21. A circular bearing block 22 is swlveled upon the reduced `upper end of thrust-rod 11 and provided ex.

` teriorly with a part-spherical bearing surface 22a in movable engagement with the bearing surface 9 ofthe socket member 6..

Suitable and effective means for releasably retaining the bearing block in bearing engagement with the socket member 6 may e provided b means of a tubular neck or extensionk 23 w ich in its outer wall is progroove 24. Seated in the annular oove 24 1s a ball 25, said ball being movab y axially within a socket-opening .26 under the pressure of a coil spring 80 a plug 26a which lis threaded into anfenlarged bore at the inner end` of socket' 26. The threaded plug26a may be adjusted axially for regulating the pressure of spring 27.

The ball or dog 25 is retained agamst outward dis lacement from its socket-opening by upsettln the metal around the outer edge of Isaid soc et. The tubular neck or extension 23 of the bearing-block 22 is made somewhat smaller in diameter than the socket-o ening 8 for permitting a slight an`v gular a justment of t e thrust-rodfll. Said bearing block 22 is provided with an annular recess 28 withln which are mounted balls 27 said balls being confined between the 95 annular race-way at the inner end of said recess and a ball bearing ring 30 which is secured in position within the recess 28 b upsetting the lower annularedge of the aring block into engagement with the'ball-bearing 100 ring 30. Slidable onto and oi of the reduced upper end of the thrust rod, is a collar sleeve 31, the cross-bar or handle being first removed for this purpose. If desired, said collar or sleeve may be provided with opposite coaxially-arranged openn 31a in its cylindrical wall to bar 20 after shlfting the sleeve to dotted-imc osition shown inFigure 1. It will be unerstood, of course, that one or more of these collars may be employed to secure the desired vertical position of the bearin block 22. In this way, the ljack may be a apted for different uses such as in the lifting of various makes of cars upon which corresonding parts are arranged at different heights from the ground.

The advantages of our improved construction will now be readil understood and briefly explained are as ollows. When for any reason it is desired to elevate a part such as one end of the side bar 1 of an automobile, the thrust-rod 11 is screwed into the base or pedestal 14 for a sufficient distance to permit said thrust rod to be moved laterally through the slot 10. With the pedestal resting upon the ground, a rotation of the thrust-rod at first elevates the bearingblock 22 into bearing engagement with .the socket-member 6 and then produces an upward lift to the art to be lifted. During this movement, `t e` part-spherical bearing surfaces 9'and 22a, in cgnjunction with th'e reduced size of tubular neck 23, permits an angular adjustment of the jack. It will be seen that all of the parts related to the lifting jack are permanently connected either to the vehicle frame or to the liftingpj ack proper in `such a way as to practically eliminate all danger of losing any ofthe essential parts of the device. .The tubular -pedestal 14 is provided With a bore 32 ofuniform diameter extendingfrom the lower end of the screw threads 13 through the bottom end thereof to permit the attachment and removalof co1- lark18 for assembling and Idisassembling the )ac f 1. In a device of the character described, the 1combination of a socket member provided with a slot therethrough `on one side, an abutment member provided with a neck presented upwardly into said socket member, an axially-movable thrust rod rotatable in said abutment member, and means interengaging between said abutment member and thrust rod for rotatably holding the former against axial displacement on the latter, the diami eter of said thrust-rod being less than the width of said slot for permitting the lateral ably engaging said abutment member.

2. In a device of the character described, the combination of a bracket adaptedto enrmit the insertion of crossgage a' with a socket opening, an abutment member movably mounted in said socket opening, ai. pedestal, and a thrust rod threaded into said pedestal and movably engaging said abutment member.

3. In a device of the character described, thecombination of a bracket ada ted to be secured to a part to be lifted, said bracket being provided with a socket opening extending therethrough and with a slot opening outwardly `through one side of said socket opening, an abutment releasably mounted in said socket opening and having a diameter greater than the width of said slot, a pedestal,

and a thrust rod threaded into said pedestal and movably engagin said abutment, said thrust rod having a iameter less than the width of said slot.

4. Ina device of the character described,785

the combination of a bracket adapted to be secured to a part to be lifted, said bracket being provided with a socket opening and with a rounded annular bearing surface extending around and at the bottom of saidrg0 socket opening, an upwardly contracted bearing block presented upwardly through the lower end of said socket opening and bearing against said rounded annular bearing surface, an axially movable thrust rod-iiour-i5 nalled in said abutment. and a pedestal with which said thrust-rod hasV threaded connect1ons.

5. In a lifting jack,- the combination of a 4 pedestal provlded with an upwardly-presentl 100 ed abutment. a thrust-rod threaded into said abut-ment, a bearing block swiveled 'upon said thrust-rod, and a sleeve interposable between said bearing block and the upwardly-present; 1,05

bearing surface adapted to engage the part '11 to be lifted, said thrust-rod being freely rotatable 1n sald bearing block, a bearing Aring mounted upon said'thrust-rod and rotatably l `engaging said bearing block, and means'for 1-15' holding said bearing ring against axial displacement on said thrust rod.

7. A lifting jack vfor vehicles, said lifting -I jack comprising a bearing block adapted to be detachably connected to the vehicle frame, ign

a thrust-rod freely rotatable in said bearing block,l a bearing ring mounted on said thrustrod and rotatably engaging said bearing block with an upward thrust thereon, said -bearing ring and thrust-rod beingprovided retraction of said thrust rod, said thrust-rod bemg provided with a thrust-bearing. rotatnections with said pedestal whereby an axial 13 movement of the thrust-rod may be produced by a rotary movementl with respect to said pedestal.

8. In a device of the character described, the combination of a bracket arm provided with a socket opening extending therethrough, a bearing block removabl mounted in said socket opening, a thrust ro rotatably mounted in said bearing block, a pedestal into which said thrust-rod is threaded, and means interengaging between said bearing block and thrust-rodfor permitting relative rotation and preventing relative axial movement of the thrust-rod in said'bearngblock.

9. In a device of the ch'aracterdescribed, the combination of a pedestal, a thrust-rod threaded into said pedestal and movable axially by its threaded connection therewith,

a bearing rin mounted on said thrust-rod and held against axial movement thereon, and a bearing block freely 'journaled-on said thrust-rod and rotatably supported by said bearing ring.

10. In a device of the character described, the combination of a bracket adapted to be secured to a part to be lifted, said bracket bei ing provided with a socket opening, a bearing lock provided with an upwardly-contracted portion adapted to be removably inserted into said socket opening, a thrust-rod rotatable freely in said bearing block, a pedestal into which said thrust-rod is threaded,

a bearing ring on said thrust-rod for Irotatably engaging said bearing block, said bearing ring and thrust rod being provided with interengaging portions for preventingirelative axial displacement, and a sleeve interposable between said-interengaging' portions of the thrust-rod and bearing ring for p ositioning'the bearing ring at a higher point on said thrust-rod.

11. In a device of the character described, v

the combination of abracket adapted to be secured to a part to be lifted, and having a socket provided with a vertical slot opening outwardly therefrom, a bearing block mounted in said socket, a thrust-rod journalled in 'said bearing block, said thrust-rod being of smaller diameter than the width of said vertical slot, a pedestal into which the lower end of said thrust-rod is threaded, and a journaling su port for said bearing block mounted on sai thrust-rod, said bearin block being removable axially from said soc et to permit a lateral withdrawal'of the thrust-rod.

JEREMIAH F. TOOMEY. JOSEPH F. MONALLY.