US2858946A - Cylinder head hoist - Google Patents

Description

Nov. 4, 1958 J. w. BREED 2,858,946

CYLINDER HEAD HOIST Filed April 30, 1956 3 Sheets-Sheet 1 INVENTOR.

JOHN M BRA-0 20% a PM Nov. 4, 1958 J. w. BREED CYLINDER HEAD HOIST s Shets-Sheet 2 Filed April 30, 1956 4 66, 6 2 6 4m 6 F 3 V 4 9 \A a a 3 INVENTOR.

' JOHN M. 5;?4'20- Nov. 4, 1958 JJWQ'BREED I 2,858,946

CYLINDER HEAD HOIST Filed April 30, 1956 3 Sheets-Sheet 3 INVENTOR.

JOHN W. 81?!!0 2w 6: PM

United States Patent CYLINDER HEAD HOIST John W. Breed, Jackson, Mich., assignor to Kent-Moore Organization, Inc., Detroit, Mich., a corporation of Michigan Application April 30, 1956, Serial No. 581,792

1 Claim. (Cl. 212-64) This invention relates to an improved cylinder head hoist.

An object is to provide a cylinder head hoist embodied in a compact easily shiftable and easily operable mechanism capable of use to be secured to the cylinder head of various makes of automobile engines to remove the head from the cylinder block and to swing the head clear of the vehicle and capable also of beingused to swing the cylinder head back into position and to lower the same upon the block.

A meritorius feature is that the mechanism is embodied in a device which is adaptable for use in a service station with the various makes and models of cars that will be brought thereinto for repair. The mechanism is embodied in a relatively compact easily portable device which may be readily moved from place to place for service use.

The mechanism is also adapted particularly for use with the modern type of motor vehicle wherein it is necessary to work underneath the hood which is incompletely elevated to expose the engine and where it is necessary to lift up the cylinder head and to swing it from the engine cavity outwardly underneath the partially elevated hood and through a relatively limited space. a

A further object is to provide mechanism of the character set forth which is readily adjustable to adapt itself for use with various makes and models of motor vehicles wherein the lift of the cylinder head and the swinging thereof is at difierent heights depending upon the particular make and model of automobile.

Another object is the provision of cylinder head hoist mechanism as hereinabove set forth wherein the mechanism or apparatus is adapted to be moved adjacent to one side of the engine compartment of an automobile and is provided with an arm which may be swung over the engine compartment underneath the elevated hood and which arm is extensible to enable the lift means of the hoist being coupled with the cylinder head.

A further object is the provision of apparatus as set forth in the immediately preceding paragraph wherein the mechanism embodies an upright standard the lower end of which is provided with a base having splayed apart feet adapted to be received underneath and on opposite sides of the vehicle road wheel to firmly position the mechanism alongside of the vehicle.

A further meritorious feature is that the upright standard has an upper end portion which is vertically adjustable with respect to the lower end portion to vary the height of the arm and the arm itself is swingable with respect to and about the axis of the upright standard.

A further feature of importance is that the upper end portion of the standard is provided with a surmounting tubular cap part rotatably and slidably supported thereupon and which cap part carries the aforesaid arm and a hoist cable and cable-winding mechanism is supported upon the arm. The cable extends to the outer end of the arm and is there provided with cylinder head attaching means.

Other objects, advantages, and meritorious features will 2,858,946 Patented Nov. 4, 1958 ICC appear from the following description, claim, and accompanying drawings wherein:

Fig. 1 is an upright perspective of my improved mechanism associated with the front end of a schematically illustrated motor vehicle;

Fig. 2 is a side elevation of the mechanism shown in Fig. l with the cable supporting a cylinder head;

Fig. 3 is a sectional view taken on the line 33 of Fig. 2;

Fig. 4 is a sectional view taken on the line 4-4 of Fig. 3;

Fig. 5 is a sectional view taken on the line 55 of Fig. 3;

Fig. 6 is a sectional view taken on the line 6-6 of Fig. 2; and y d Fig. 7 is a top plan view of the mechanism showing the relatively splayed feet of the base. i

In the drawings the front end portion of a motor vehicle is schematically illustrated in Fig. 1 wherein a portion of the radiator is indicated as 10, a front fender as 12, a front wheel as 14, the fire wall which separates the engine compartment from the interior of the body as 16, and the cylinder head as 18. The cylinder head hoist mechanism is embodied in portable apparatus which may be easily moved apart. It is shown in Figs. 1 and 2. It comprises an upright standard assembly having a base 20 at its lower end and an arm assembly 22 at its upper end. The upright standard is formed of a lower tubular section 24, and an upper tubular assembly 26 telescopically coupled with the lower tubular section 24- for vertical adjustment as hereinafter described.

The lower tubular section or end portion of the standard is mounted upon the base as shown in Fig. l. The base includes the axle portion 28 and a pair of feet 30. These feet are secured at one end to the axle and held in spaced relationship by a strut 32 and the tubular section 24 may be welded to the strut 32 and brace Wings 34 may be provided as shown. The axle 28 is provided at opposite ends with rollers or wheels 36. The feet 30 are splayed apart so that their outer ends may be thrust underneath of as shown in Fig. 1.

The upper end portion of the standard comprises a tubular section 38 which is telescopically received within the lower tubular section 24. This section 38 may be provided with a plurality of aligned apertures 40 adapted to receive a pin 42 as shown in Figs. 1 and 2 to support the section 38 at different positions of vertical adjustment with respect to the section 24. The pin may be secured to the lower tubular section by a chain 44 as shown. The upper end portion of the standard includes a tubular cap 46 which is slidably and rotatably supported upon and received over the upper end of the tubular section 38. This tubular section 38 may be provided with a plurality of bearings 48 as shown in Fig. 6 to provide a suitable slidable support for the cap and the upper end of the tubular section 38 is interiorly fitted with an internally threaded nut 50 as shown in Fig. 6.

A bar 52 has a threaded portion 54 which threadedly engages Within the nut 50. The upper end of the bar extends upwardly through the upper end of the cap as shown in Figs. 1, 2, and 6 and may there be fitted with a crank 56 as shown in Fig. 1 whereby the bar may be rotated. The bar is provided with a plate 58 fixed thereto as shown in Fig. 6 and supporting the cap 46. A pin 60 may be extended through the bar to hold it in position.

It will be seen that rotation of the bar will raise or lower the same together with the cap with respect to the tubular section 38. The tubular section 38 is, as has heretofore been set forth, telescopically adjustable with respect to the lower end portion of the standard. There are therefore two methods of adjusting the vertical height 3 of the cap with respect to the lower end portion of the standard. The cap also is freely rotatable upon the tubular section 38 so that the cap may not only be raised and lowered vertically but may be rotated about the vertical axis of the standard,

The cap itself carries the arm assembly 22. This arm assembly consists of an outer end portion 62 and an inner end portion 64. The inner end portion 64 is fixed to the cap by being welded or otherwise secured thereto and through the employment of a web or rib-like structure 66. The arnrextends away from the cap in opposite directions. In one direction it extends downwardly and outwardly away from the cap as a short arm. In the opposite direction it extends upwardly and outwardly therefrom as a long arm. This long arm is the one that includes the outer end portion 62. This outer end portion 62 is telescopically associated with the inner end portion 64. It is telescopically adjustable and may be maintained at adjusted positions by a pin 68 received in any one of a plurality of openings 70 as shown in Fig. 1.

A hoist lift cable 72 extends through the interior of the arm. The arm is here shown as being of a tubular construction. This cable extends beyond the outer end of the arm and is shown in Figs. 1 and 2 as terminating in a loop which engages a ring or clevis 74 that may carry a chain 76 which chain may be provided within fittings 78 which fittings are adapted to be secured to a cylinder head to support the same. The cable therefore terminates in an attachment or means adapted to support a cylinder head as shown for lifting the same from or placing the same on a cylinder block. The opposite end of the cable 72 is Wound about a drum or the like 80. The drum forms a part of the winding mechanism.

housing 82 shown in'Figs. 1 and 2 as mounted on the short end of the arm. This winding mechanism includes the drum 80 which is fixed in a shaft 84 which shaft is supported within the housing within a side wall thereof and a partition wall 86 for rotation. The shaft carries a gear 88 'as shown in Fig. 3. This gear is coupled through a worm 90 with a crank shaft 92 to be driven thereby. The end of the crank shaft is shown in Figs. 2 and 5 as extending through the casing 82 to a point exterior thereof. The outer end of the crank shaft is adapted to be '3;

fitted with a crank 94 whereby the winding mechanism may be manually actuated to wind the cable 72 upon the drum or to unwind the same therefrom for the raising and lowering of a cylinder head supported at the outer end of the cable.

It will be seen that the mechanism is a compact, easily portable unit. It normally occupies an upright position as shown in Figs. 1 and 2. When it is desired to move the same to a position of use, the standard may be swung rearwardly so as to throw the weight of the mechanism upon the wheels 36 and it may then be moved as desired.

When it is to be used to lift the cylinder head from the cylinder block of a motor vehicle, it is moved up alongside one of the front wheels of the vehicle. The splayed apart feet 36 are moved underneath the front tire as shown in Fig. 1 so that the mechanism is securely supported in the upright position. The arm may be adjusted as to height by telescopically adjusting the tube 36 within the lower portion 24 of the standard. The arm is then swung into place underneath the elevated hood of the vehicle and connection made with the head of the engine after the head has been loosened from the block. If further adjustment of the arm is necessary, such may be accomplished by means of the crank 56 which raises and lowers the cap 46 upon the tube 38. Such may be necessary to accomplish the swinging of the head from out of position over the engine cavity.

The arm may be swung rotatably about the axis of the standard due to the manner in which the cap 46 is mounted upon the tube 48 as heretofore described. It may be swung to bring the cylinder head clear of the vehicle. It is not ordinarily intended to move the head from one position 'to another through wheeling the mechanism but the head is dropped onto a suitable wheeled vehicle for movement. Replacement of the head involves the reverse operations.

What I claim is:

A cylinder head hoist comprising, in combination, a base consisting of an axle provided at opposite ends with supporting wheels and provided with two feet projecting outwardly away from one side of the axle to have opposite ends of the feet bear directly frictionally upon a floor upon which the wheels rest, said feet being splayed apart as they project away from the axle, a plate extending between the feet in proximity to the axle, an upright vertically extensible standard supported upon the plate, a longitudinally extensible arm swingably mounted upon the standard and adapted to project outwardly therefrom overhanging the feet, hoist mechanism supported upon the standard and including a cable supported to extend lengthwise of the arm and having its free end depending from the outer end of the arm, said feet adapted to be received under a vehicle wheel transversely thereof upon opposite sides of the point of support of the wheel upon the floor and adjacent to the point of support whereby the ends of the feet are held by the wheel directly'against the floor.

References Cited in the file of this patent UNITED STATES PATENTS 1,978,999 Jones Oct. 30, 1934 2,433,921 Nelson Jan. 6, 1948 2,571,858 Garland Oct. 16, 1951 2,575,564 Rinkel Nov. 20, 1951 2,708,374 Engh May 17, 1955

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