US1612612A - Foot accelerator - Google Patents

Description

Dec. 28 1926.

H. J. COCKS FOOT ACCELERATOR Filed Now 5, 1926 2 Sheets-Sheet 1 Jwezzzfll' 257 a (543? My r FOOT ACCELERATOR 2 Sheets-Sheet 2 Filed Nov. 5, 1926 Patented Dec. 28, 1926.

HARRY'J'. ooo'iis', or EES'IJEOINES, IOWA, lrssrsuon no METAL PRonUo i-s COIVEIPANY, or

has norms, Iowa. l

room eoonnnnnron.

Application filed November The object of my invention is to provide a foot accelerator of simple, durable and inexpensive construction.

one or" the purposes of my invention to provide such a foot accelerator which can be installed on acar an accessory or installed in the factory during the original manufacture of the car.

Another object is'to provide s eh a structure as willaltord a positive actuation of the throttle valve.

Still another purpose is to provide a foot accelerator having its parts so constructed and arranged as to afford direct and positive connection between afoot actuated pedal or member and a throttle valve arm and to atford an auxiliary connection between the hand throttle control rod and the throttle valve of the carburetor, the parts beingso arrangedas to permit the control of the throttle valve directly from the foot pedal without actuating the hand throttle but which will permit the use oi the hand throttl'e' in the ordinary way;

an additional objectis t'o-provide a foot accelerator and means for mounting it which will not involve such wear on the toot board of a car aswill permit the parts to get out ot adjustment or to bind.

Another object is to provide such an" accelerator which is quickand easy to install;

Still another object of the present invention is to pro* ide atoot accelerator which can be readily and easily attached upon any Ford car employing the so-called Holley hot spot carburetor.

It is further my purpose to provide in such a foot accelerator, a number of novel features of structure in various parts of the device.

An additional and special object of the present invention is to provide a structure so arranged that the foot accelerator portion may be operated without actuating the hand accelerator portion and the hand accelerator portion may be operated without operating the foot accelerator portion.

With these and other objects in view, my

invention consists in the construction, ar-

5, 192 6. Seria1 No-.- 146,419.

rangeinent and combination otthe various parts of my device, whereby; the'objects contemplated are attained, as hereinat'ter'more fully set forth, pointed out in'my claims, and illustrated in the accompanying. drawings, in which:

Figure'l is apersPect-iveview of the' foot accelerator.

Figure 2 is-a-similar view of a: portion of another form of my accelerator which is the preferred form.

Figureil is a top or planview of the portion of an automobile equipped with' a foot accelerator, the dash being. shown in horizontal section.

Figure 4: is a side elevation of the engine equipped with a foot accelerator, the dash and floor board being shownin' vertical secion.

Figure 5 is an enlarged side" elevation, parts of the device beingv shown in section and parts being omitted, and taken on the line' 55 of Figure 4.

Figure 6 is a detail sectional-view of part of the mounting.

Fi -ure7 isa sectional view taken on the line (-4 of Figure 4, and

Figure 8' is a detail sectional view taken on the line 8+8 of Figure 5.-

ln the drawings herewith in whichI have illustrated my improved toot accelerator and portions of the automobile'upon which it is installed, I haveused the' reference numeral 10 to indicate generally the engine of an automobile such as a Ford.

The engine has the intake manifold 11 and the exhaust manifold 12.- The engine is equipped with what is known as the Holley hotspot carburetor which is indicated generally by the reference character A and has the float chamber 13, the hot plate let and the air iixing chamber 10 in which is the throttle valve.

Thethrottle'valve 15 is of ordinary construction and has the stem 16 on which is the usual arm 17 and the projecting: st'op or limiting" lug 18. The arm 17 has at its upper end, the opening19 from which projects the short sleeve 20asshown in Figure 7 Projecting from the arm between the hole 19 and the valve stem 16 is a flange 21 in which is mounted an adjustable stop screw 22. By actuating the arm 17 the throttle valve is controlled.

1 have shown in order to illustrate the environment in which my accelerator is used, the car dash 23 and foot board 2st. Extending through the foot board are the timer control rod 25, the steering rod 26 and the hand throttle control rod 27.

On the hand throttle control rod is an arm 28 as shown in Figures 3, at and 5. The parts just heretofore described are the usual equipment of the car and themselves do not form my present invention.

In the car as put out by the factory a connecting rod is extended between the arm 28 on the steering hand throttle control rod 27 and the throttle stem arm 17. This rod is indicated at 29 where my structure is connected with the arm 28 in the manner hereinafter to be described.

I will now describe my improved foot accelerator and explain the manner of its installation on the car.

I will describe first the means for actuating the throttle valve with the foot. 1 provide a bell crank lever 30 shown in Figures 1 and 4. This bell crank lever is pivoted on the carburetor in the following manner. The hot plate 14; is bolted in place by means of series of bolts 31.

One of these bolts is removed and inserted through a suitable bushing 31 in one arm of the bell crank lever 30 as illustrated in Figures 1 and 6 to permit free swinging movement of the bell crank lever in a substantially vertical plane.

A foot control rod 32 has one end bent as at 33 and extends through the other end of the bell crank lever 30 as shown in Figure 1. A cotter pin 3a is put through the end 33 of the rod 32 to hold it against accidental removal.

Instead of being straight the rod 32 is bent to clear the adjacent parts of the engine and is extended rearwardly and upwardly through a suitable hole 35 ano the floor board 24.

At its rear end the rod 32 is connected with a foot pedal which comprises a floor bracket 36 having the holes 37 to receive bolts or screws or the like 38 for fastening it to the fioor board. The bracket 36 has the parallel upstanding ears 38 receiving the pin or the like 39.

A. foot pedal member has a pair of downturned ears etl at one end overlapping the ears 38 and having the pin 39 extending through them. The foot pedal 40 may be provided with a rubber pad 41-2 if desired.

At its forward portion it has a clownturned ear or lug 43 provided with a hole i l to receive an offset end 45 of the rod 32. Through the end 15 is extended the cotter pin a5 for holding the rod in place.

The central portion of the bell crank lever 30 is connected with the valve stem arm 17 in the following manner. 1 provide a special fitting which is shown best in its preferred form in Figure 2, comprising a plate 17 having a hole 18 to receive the sleeve 20 on the arm 17.

The plate l? also has a pair of fingers 19 extending around the arm 17 for thus holding the plate against rotation on the sleeve 20. In the plate a? is formed a curved slot 50. Pivoted to the central portion of the bell crank 30 is the offset 51 and end of the rod 52. The other end of the rod 52 has an offset portion extended through the slot and bent over as at 54- to prevent accidental movement.

vl 'hen the throttle valve is closed, the plate 47 will be in the posit-ion shown in Figure 2 and will hold the rod 52 at its upper limit of movement for thereby holding the bell crank lever 30 and the rod 32 in such position as to maintain the foot pedal 10 in raised position.

i i? ien thereupon the foot pedal is pressed downwardly toward the foot board, it actu ates the rod longitudinally and rocks the bell crank lever on the bolt 31 for moving the rod 52 and thus actuating the plate 47 and the throttle valve stem 17 for opening the throttle valve.

It will be noted, however, that nothing has been described so far to return the plate 17 and the arm 17 to valve closing position. The means for accomplishing this and the means for providing for hand throttle operation will be described, after first describing the slightly modified form of the device shown in Figure 1.

in this foot accelerator instead of this plate 1'? I use a fitting 55 which has a hole 56 similar to the hole 43 for receiving the sleeve 20 and has the fingers 57 for fastening the fitting 55 to the arm 1?. a

The fitting 55 has an offset finger 53 through which the bent portion 54: and the offset portion 53 of the rod 52 are inserted as shown in Figure 1. bi lion either form of my device is used, I provide a spring 59.

The hooked end 60 is secured to the central portion of the bell crank lever 30 as by extending it around the end 51 of the rod 52 and is securely anchored to some support as to the bolt 61. where the form of fitting shown in F igure 5 is employed the connection between the rod 51 and the bell crank lever is pivotal instead of slidable.

The spring 59 tents to hold the throttle valve in closed position as well as to hold the foot pedal 40 in raised position.

here the plate at is used, the spring, 59 serves to=hold the foot pedal inraised position.

When the plate at is employed, it will be understood that the parts are so constructed and arranged that when the spring 59 is fully contracted and the foot pedal 40 is raised and the throttle valve is closed, the end 53 of the rod 52 will rest in the left hand end of the slot 50 as shown in Figure 2.

I will now describe the means for hand operat-ionof the throttle valve and connection therewith and will describe the means for holding the throttle valve normally closed under pressure when the plate l? is employed.

Extended through the arm 28 on the hand throttle rod 27 is a bolt or the like 62. I provide a bracket 68 having an offset arm 64 mounted on the bolt 62 as shown in Figure 1.

The offset portion G l is inthe same plane as the main body of the bracket The bracket 63 is provided with an elongated slot 65. In the end of the bracket 63 opposite the offset portion 64. is a short flange 66.

A hand actuating rod 29 is provided with a bent end 68 extended through the hole 19, sleeve 20 and the hole 56. A cotter pin 69 h his the end 68 against accidental removal. The other end of the rod 62 is extended slightly through a hole 70 in the flange 66 (see I igures 1, 2 and 8) and terminates in a bent portion 71 projecting through the slot 65. p

On the portion 71 is a washer 72 beyond which the cotter pin 73 is extended through such portion '71. To better hold the rod 6. and guide it on the bracket 63, I provide a fitting in the form of ashort plate 7 i shown in Figures 1 and 8. This plate 74 has at one end a hole 75 through which the bent portion 71 is extended and has at its other end the spacedfingers 76 receiving between them the rod 29.

The plate 74- is wide enough so that it will not slip through the slot 65. IVhen the plate 4'? is employed as a part of my foot accelerator and I prefer the form using it, I mount on the rod 29 between the flange 66 of the bracket 63 and the fingers 76, a coil spring 77 which tends to yieldingly hold the bent portion 71 at that end of the slot 65 nearest the arm 28.

The two forms herein described are the same except that in the preferred form I use the plate a? and the spring 77 whereas in the other form I use the fitting 55 and omit the spring 77.

I will now describe the practical operation of my foot accelerator first in the preferred form and then in the other form.

It will be understood that the hand throttle control is ordinarily carried in position where the throttle valve is closed. l/Vhen the hand throttle control rod 27is in'th is position the arm- 28 thereon will be in the po sitionshown in full lines in Figure 2 and as shown for instance in Figure 3 and Fig ure 5. I

The spring 77 will then hold the rod 6"? at the right hand limit of its movement as shown in full lines in Figure 2 and as shown in Figure 3 which will hold the throttle valve closed with the plate I? in the position shown in full lines in Figure 2.

When it is then desired to operate the throttle with the foot accelerator for opening the throttle valve and supplying more fuel tothe engine, the driver presses his foot on the pedal ac. The rod 32 is then moved downwardlyand forwardly thus imparting rocking movement to the bell crank lever 80.

The rod 52 is carried with the bell crank lever 30 and its end 52) engaging the plate a? in the left hand end of the slot 50 as shown in Fig. 2, pulls the plate at? and the arm 17 to a throttle opening position. This, o'l' course, moves the rod 67 longitudinally.

Such movement of the rod 67, however, imparts no motion to the hand throttle control rod b ause of the usual cooperation of the hen throttle control lever and sector on the steel .ng wheel but not here shown,

The tension onthe spring 7'? is not sutiicient to slide the bracket 63 against the resistance of the sector on the ordinary hand throttle lever. When the pressure on the foot pedal 40 isreleased, the spring 51') raises the foot pedal 40 and the spring 7'?" moves the'rod 6? from its dotted line position shown in Figure 2, to its full line position and thus actuates the throttle valve toward closing position.

If it is desired to operate the throttle valve from the hand control mechanism, it. will be noted that when the rod 27 is rotated in the ordinary and well known way, the bracket 63 will he moved toward the left from its full line position shown in Figure 2, by the rocking of the arm 28 carrying with it the rod 67 and actuating the throttle valve toward open position.

The plate will slide with relation to he rod 52 without actuating that rod and therefore without tensioning the spring 59 or eifectingthe foot throttle control mechani'sm other than the plate 47.

This feature of the operation of my de vice, I believe to be novel.

It is therefore, observed that my foot throttle control mechanism can be operated without rotating the rod 27 or affecting the arm 28 and that the hand throttle cont'oi. mechanism can be actuated without a feet the foot control orchanism.

When the fitting 55 used, the spring 77 is unnecessary. The operation of the accelerator is the same as that described for it when the plate 47 is used excepting that the fitting 55 always moves with the rod 52 and when the pressure on the foot pedal is released the spring 59 not only raises the toot pedal but also serves to actuate the rod 52 and the fitting for closing the throttle valve.

I claim as my invention:

1. in combination with a carburetor having a mixture control valve lever, a throttle control. rod having a throttle lever thereon and a rod connecting the levers, a foot accelerator comprising a foot pedal for actuating the valve lever, a slide member pivoted to said throttle lever, said slide member having a slot therein and a perforated ear on one end, the second rod being mounted. slidably through the ear and in the slot and means for maintaining said end in the slot.

In combination with a carburetor having a mixture control valve lever, a throttle control rod having a throttle lever thereon and. a rod connecting the levers, a foot accel orator comprising a fitting adapted to be cured to said valve lever whereby the fitting and the lever form a bell crank lever, a spring tor actuating the fitting in one direction and a toot pedal. for actuating it in an opposite direction, a slide member having a perforated ear and a slot, said second rod extending from the valve lever through the ear and into the slot whereby the spring maintains the portion of the rod in the slot at one end thereof and actuation ot the foot pedal will move that portion away from said end of the slot and means for pivoting said slide member on said throttle lever.

3. in combination with a carburetor having a mixture control valve lever, a throttle control rod having a throttle lever thereon and a rod connecting the levers, a foot accelerator com 'irising a fitting adapted to be se cured to said valve lever whereby the fitting and the lever form a bell crank lever, a spring for actuating the fitting in one direction and a foot pedal for actuating it in an opposite direction, a slotted slide member pivoted to said throttle lever, said second rod having one end bent at substantially right angles and extending through the slot, a keeper between sa d rod and the slide member, said keeper having er s for encircling the rod and a perforated end to receive the bent end of the rod.

in combination with a carburetor having a mixture control valve lever, a throttle control rod havinga throttle lever thereon and a rod connecting the levers, a toot accelerator comprising a fitting adapted to be s cured to said valve lever whereby the fitt ng and the lever "form a bell crank lever, said fitting having an enlarged opening and said valve lever having a hub which is received in said opening, ears on said fitting for encircling the valve lever, a spring for actuating the fitting in one direction and a foot pedal for actuating it in an opposite direction, a slide member having a perforated ear and a slot, said second rod extending from the valve lever through the ear and into the slot whereby the spring maintains the portion of the rod in the slot at one end thereof and actuation of the foot pedal will move that portion away from said end of the slot and means for pivoting said slide member on said throttle lever.

In combination with a carburetor having a mixture control valve lever, a throttle control rod having a throttle lever thereon and a rod connecting the levers, a foot accelerator comprising a fitting adapted to be d to said valve lever whereby the fittin and the l ver form a bell crank lever, fitting having an enlarged opening and said valve lever having a hub which is re ceived in said opening, ears on said fitting tor encircling the valve lever, a spring for actuating the fitting in one direction and a foot pedal ior actuating it in an opposite direction, a slotted slide member pivoted to said throttle lever, said second rod having one end bent at substantially right angles and extending through the slot, a keeper between said rod and the slide member, said keeper having ears for encircling the rod and a perforated end to receive the bent end of the rod.

o. in a structure of the class described, the combination of a throttle valve, valve stem and arm thereon, with a bell crank lever pivoted at one end, a foot pedal pivotally supported at one end, a rod pivoted to the other end of the pedal and to the other end of the lever, a link pivoted to the bell crank between its ends and to the arm and a spring arranged to normally hold the pedal raised.

7. in a structure of the class described, the combination of a throttle valve, valve stem and arm thereon, with a bell crank lever aivoted 21L one end, a foot pedal pivotally supported. at one end, a rod pivoted to the other end of the pedal and to the other end oi the lever, a link pivoted to the bell crank between its ends and pivoted to the arm for limiteal sliding movement, means for normally holding the pedal raised, a hand throttle control rod, an arm thereon and means for operatively connecting said last arm with the valve arm and a spring arranged to normally hold the pedal raised.

8. In a structure of the class described, the con'ibination ot a throttle valve, valve stem and arm thereon. with a bell crank lever pivoted at one end, a foot pedal pivotally supported at one end, a rod pivoted to the other end of the pedal and to the other end of the lover, a link pivoted to the bell crank between its ends and pivoted to the arm for limited sliding movement, means for normally holding the pedal raised, a hand throttle control rod, an arm thereon and means for operatively connecting said last arm With the valve arm and a spring arranged to normally hold the pedal raised by a yielding slidahle connection.

9. In a structure of the class described, the combination of a throttle valve, valve stem and arm thereon, with a hell crank lever pivoted at one end, a foot pedal pivotally supported at one end, a rod pivoted to the other end of the pedal and to the other end of the lever, a link pivoted to the bell crank between its ends and pivoted to the arm for limited sliding movement, means for normally holding the pedal raised, a hand throttle control rod, an arm thereon, a bracket pivoted to said last arm having an elongated slot and a perforated flange, a rod connected with said first arm, extended through said perforation andhaving an end slidahly mounted in said slot, and a spring tending to hold such end at one end of the slot.

Des Moines, Iowa, October 28, 1926.

HARRY J. COCKS,

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