US2065277A - Lifting jack - Google Patents

Description

Deca 22, 1936. N, G JENSE] 2,065,277

LIFTING JACK Filed Feb. 25, 1935 /nynton cnf-@2222 22W/ l vehicle is lifted to a height determined by the tical position so that the vehicle is raised so difference between the length 0f the jack body high that the W'IQel OI Wheels 23 EKG lifted IOIII the shorter intermediate member and by the the track distance between the point et which the eek In Order t0y prevent the different parts of the p body is suspended to the vehicle and the track. device flm Coming TIO Contact and causing An embodiment er the invention is illustrated disagreeable noise when the jack is in the inopby Way of example in the accompanying drawertVe DOSOrl, a Spring 22 may be inserted ing in whiclybetween the sleeve Eil and the intermediate Fig. 1 shows in side elevation the jack with member i3. A similar element may be inserted operating mechanism on a vehicle and in cpbetween the intermediate member 8 and the 25 erative position. .lack body l. The clip Zi may have an abutment Fig. 2 is a similar View to Fig. 1 showing the, 2i for eliminating the lifting oscillation of the jack in inoperative position. jack body. The movement of the jack body Fig. 3 is a perspective view of the jack. in the opposite direction can be limited for Patented Dec.. 22, 1.936'

LIF'IING JACK Niels Gade Jensen, Viborg, Denmark Application February 25, 1935, Serial No. 7,952 In Denmark January 16, 1935 7 Claims. (Cl. 254-86) This invention relates to a jack for vehicles, than the distance between the bolt 5 which especially for motor cars, of the type which rehingedly connects the intermediate member 8 mains permanently on the vehicle under the with the clip 3 and the track. When the spindle chassis and when required can be. actuated by I6 is rotated, the jack body 'E with the intermehand, by means: of which the vehicle can be diate members 3 and E3 can be lifted into the completely or partly raised sufficiently high, for normally inoperative position shown in Fig. 2. 5 example, to enable the exchanging of a wheel. When it is desired to raise the vehicle, the

The characteristic feature of the invention is spindle it is rotated in the opposite direction that the jack body is a U-shaped piece provided as before so that the screw sleeve 2li moves away with a foot and movably suspended on the vefrom the plate i5. As the sleeve is connected 10 hicle, at two points situated in the same horiby the bolt l! tothe U-shaped jack body 1, this zontal plane, by means of intermediate membody and the intermediate members 8 and I3, bers of different lengths. The jack body can be are shifted into the position shown in Fig. l. oscillated by hand so that the foot is pressed The jack body l and the intermediate member on the track and the corresponding end of the 8 are thus in the vertical or substantially ver- 3 The lifting jack consists of a U-shaped jack example by the springs 22 or by an abutment 30 body 'l of band iron which is attached by a' ring or nut arranged on the spindle It but not member 8 to a clip Si on the axle i of the vehicle shown in the drawing. 1n order to prevent the and by means of a longer member I3 to a clip individual parts of the lifting jack from coming d mounted at 2 on the chassis. The jack bod-Y into contact when, owing to the spring suspenl iS DVOtall'y Crlrlected With the member 3 by sion of the vehicle when travelling, the points of 35 bolts il and haS re'rWafrdlY DTOjeCtng and suspension 5 and t must be situated in the same downwardly inclined arms 9 to which by bolts horizontal plana i2 the longer member 13 is nii/Gialli mounted The individuel parts of the uiting jeek may be The Jack body 'F has 3^ foot m adapted to rest otherwise constructed than described and illus- 4o upon the tracktrated without departing from the scope of the 40 On the outer end of the intermediate member invention; for example the jack body 7 and the i3 a plate l5 is pivoted by means of pins Hi and L a spindle iii is journalled in this plate. This Elsegga'tges hnghlanfeag Ocfasu Spindle has abutments lg one on each side of pressed arm Under certain circumstances the the plate i5, so that it cannot shift in longith 1 l i 45 tudinal direction when rotated. The spindle I6 outer en@ of e S9111@ e 3 may carry a bevel has at its Eme end a hexagonal portion m de wheel which meshes with a second bevel wheel signed to receive a hand crank O1. when the keyed on an aXleso that the spindle can be jack is employed on a motor car, the starting rotated from the 51de 0f the Vh01ecrank. The other end of the spindle has a FurthermOre, the arrangement may be Such 50 screw threaded portion il screwed into an inthat the spindle can be driven by hydraulic or ternally screw-threaded sleeve 2i] iixed on the pneumatic power. In this instance a cylinder bolt il or the jack body l. and piston may be substituted for the sleeve 20 The length of the jack body l and the interand the spindle IB, liquid under pressure or com- 55 mediate member 8 together is slightly greater lpressed air being supplied in known Way as soon 55 as the lifting jack has to be operated to lift; the vehicle.

The jack of the type above described can be employed on any kind of vehicle and as many jacks as there are wheels or sets of wheels may be provided.

I claim:-

1. A jack especially for motor cars of the type permanently mounted on the chassis of the vehicle and adapted to be actuated by hand to lift at least a part of the vehicle, comprising in combination a jack body, a foot on said body, two intermediate members of different lengths pivotally connected at one end to said jack body, the short member to the upper end and the long member near the lower end of the same, means for pivoting the members to the vehicle, and a spindle pivotally connected to the upper end of said jack body and rotatably mounted in the longer of said intermediate members, said spindle adapted to be rotated to displace the upper end of said jack body to swing the same relatively to said long member to lower and raise said foot.

2. A jack as specied in claim l, in which the pivoting means are arranged substantially in the same horizontal plane.

3. In a jack as specified in claim 1 a bolt connecting the jack body to the short member and plate arranged at the end of the long member remote from the jack body and adapted to rotatably support the operating spindle.

4. A jack as specied in claim 1, in which a spring is arranged between the operating spindle and the long member adapted to mutually support said spindle and said member to prevent rattling when the vehicle is travelling.

5. A jack as specied in claim 1, in which a spring is arranged lbetween the operating spindle and the long member to mutually support said spindle and said long member to prevent rattling when the vehicle is travelling.

6. In a jack as specied in claim 1 a plate arranged at the end of the long member remote from the short member and adapted to rotatably carry the spindle, and abutments on the spindle one on either side of said plate adapted to prevent the longitudinal displacement of said spindle in said plate.

7. A jack as specied in claim 1, in which an abutment is provided on the member xed to the axle and carrying the pivot to limit the swinging movement of said member away from the other iixing means.

NIELS GADE JENSEN.

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