US1472101A - Gear lock for automobiles - Google Patents

Description

GEAR LOOK FOR AUTOMOBILES Filed Feb. 2'7. 1922 3 sheets Shet 1 a a I gnenta'; fiaws 65 750/2277 I 6 a a Q43 Z fifi wmsl w (filo/mu LAWZJWE C. G. TROSIEN GEAR LOOK FOR AUTOMOBILES Filed Feb. 27 1922 3 Sheets-Sheet 2 gja K F VA E .4.. 5* 6 5 Q V A 2 1,; fax

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' C. G. TROSEEN GEAR LOOK FOR AUTOMOBILES Filed Feb- 2'7 1922 3 Sheets-Sheet 3 Quanta-5 ii atenteoi A elf 511's MICHIGAN.

GEAR LOCK AUTOMQEILES.

Application filed February 2?, 1922. Serial Ho. 539,435.

To all whom it 'n'iay concern:

Be it known that I, (11mins G. Tnosnna, citizen of the United States. residing at Pontiac, county of ()akland, State of Michian, have invented a certain new and useful improvement in Gear Locks for Automohiles and declare the following to he a full, clear, and exact. description of the same, such as Will enable others skilled in the art to which it pertains to make and use the same. reference being had to the accompanying drawings, which form a part of this spec-id cation.

My invention relates automobiles and an object of my improve ments is to provide a means for locking the gears in a special form of construction here inafter distinguished.

In the drawings,-

Figure l is a. sectional elevation of a part of a. gear case and apparatus embodying my invention.

Fig. 2 is an end elevation of the same looking from the right of Fig. 1.

3 is sectional plan view, the section being taken on the line ill lli, Fig. 2.

Fig. i is a. partial view similar to Fig. 3 showing the parts in a different position.

Fig. 5 is a detail sectional view in elevation taken from the position indicated by the line V-V., Fi i.

Fig. 6 is a view similar to Fig. i showing a modified construction.

Fig. 7 is a detail showing two positions of She ope ing parts of the construction si '11 in rig. t3.

Fig. 2% is a detail MKilUil on the line VlH- -i'lil, Fig. 6.

Fig. 9 is a perspective view of the inching rod.

Fig. 10 is a detail end view showing the actuating pin for the locking rod of Fig. 9.

Fig. 11 is a sectional detail illustrating the construction of the iork'carr ving sleeve. the

section being taken on the line Xi-Xl,'

Fig. 1.

Fig. 12 is 2 view similar to Fig. .2 showing a means of locking the parts to prevent the removal of an one oi' said parts.

Fig. 13 is a section on the line Xlll Xll i Fig. 12. l

Fig. l'is a view similar to Fig. 15), illustrating the modified construction shown in Fig. 6. I

ais the casing for the change-speed gearing; Z), l) are guide rods fixed horizontally to gear locks for in said casin; pa railel to the line of movement in the gears and adjacent to said gears. c is a rod paraiiel to the rods F), i) and located between the same. The rod w is secured at one end in one wall of the casing" (z. and extends part wa through said casing. and a are sleeves carrying the forks for engaging and shifting the gearing. These sleeves slide upon the rods 71. ('1. indicated. b are grooves in the rods 5) into which pawls 313 are yieidingly pressed hr springs, as shown in Fig. to indicaie the various positions of the gears. c is a transverse diainetral aperture through the rod 0 between the sleeves (I and (1 c, are halls located and adapted to travel in the slot a.

As an alternative construction. the haiis may be replaced oy cji'lindriczii rods ft- (Fig. (3) (1 and (i are grooves in the sides of the sleeves (Z. n adiacent to the rod 0., into which the halls may et'tend. The diaincter of the balls 0" or the length cylindrical pieces 0%; with their inward e. tensions is such that n hen one oi said bails or cylinders is entirely within the ugerture 0 the other is extended therefrom and enin its respective apertures (3 a to pie wit the movement of the corresponding sleeve (I. in this way, only one of said sleeves ina v he moved at one time because when one is moved the adjacent hall or cylinder is pressed into the aperture and forces the other of said halls or c;v-in ;lei s out of said aperture, engaging it in its re spectivc groove F) or F). i

The ahove'is a known construction. 'io provide a lot-hing means for this type of gearing. l bore a cylindrical aperture all in from the inner end of the rod 0 to join with the transverse aperture .lnto this aperture his a locking rod e which, in the. form shown in Figs. 1 to i inclusive. re ciprocates axially to perform its fiunction. The casino (1 is provided with an aperture f" through which the ron e may be inserted and adjusted to place. i is a. vertically-ex tended rod adapted to oscillate or I'OtTi in hearings in the casing m. its lower end being provided with a cam f which engages the outer end oi the locking rod (1. The np'per end of the rod 7' is provided with. a barrel lot-l: which may be actuated by a. key. v i tThen. the sleeves a (I are in neutral position oi the gearing. the grooves (5 i are opposite u to each other. lion if the rod f inrn' n to the position shown in ae is. the iociing iii lit)

its

- that the gearing is locked from movement.

When the rod is turned to the position indicatcd in. Fig. 4, the rod 0 may be forced backward by the inward movement of one or the other of the balls 0 thus unlocking the sleeves and gearing. i

iltwill be observed that a rod 7) might be removed, thus unlocking the mechanism in the constructions shown in Figs. 1 to 4, inelusive. To prevent such removal. l provide apertures in the walls oi the sleeves (l, (1 adjacent to the rod (3 which apertures, when the gearing is in its neutral position are axially in line nith the apertures 12) and piace a ball r in each of said. apertures. I also provide a groove 1) (Figs. 13 and 14;) in the inner wall of the rods 71. 7), in such position that they shall be in line with the apertures in which the balls g rcciprocate when the gearing is in its neutral position. The size of these balls is such that when the balls 0 c are pressed outward into the locking position. as above describerh the halls g, will be thereby torced part way out of their grooves and thus engage in the slots 1). In this way; the rods b, the sleeves (Z, (Z and the rod 0 are .all

locked together and these parts, or any of them, cannot be removed.

In Figs. 6 to 1.0, i have illustrated a modified construction in which the cylindrical locking blocks 0 a, 0% are substituted for the halis a, and a rod m having a cam ca. on its inner ends is adapted to be rotated to force the block 0% out. 'ard into the locking position or to permit them to be forced in-v vvard, as above described. The rod 7 is adapted to actuate the rod m by means of an eccentric )in -71 which en a c in a slotea inthe periphery of the rod Mr. at its outer end. By turning the rod fto one po sition the mechanism is unlocked and by turning it to the other position the mechanism is locked. The two positions of the rods and the way in Wllit'll the pin actuates the rod we is illustrated in thr two views of Vhat I claim is:

1. in combination with change speed gearing having reciprocating parts and-a rod 0 extending between said parts, of a. lock mechanism on said rod adapted to be adjusted .on said rod at will to engage said parts to lock the same from motion or to disengage said parts.

In a change-speed gearing having reeiproeating parts, guides for said parts, a

rod extending between said parts and an apparatus on said rod adapted to lock said parts and apparatus on said parts adapted to engage the guides thcrfor when the up paratus on said rod is adjusted to locking position,

3. In a change-speed gearing, reciprocatin parts, a rod extending between said parts, guides for said reciprocating parts and means for binding together said. rod, reciprocating parts and guides at will.

4. In a change-speed gearing having rcciprocating parts and a rod 0 extending be tween said parts in the direction of motion of said parts and carrying an alternative locking mechanism for said parts, an actuating piece extending into a cavity in said rod, and means for operating said actuating piece whereby said alternative locking mechanism is caused to lock both of said reciprocating parts. a

5. in a changespeed gearing having two reciprocating parts a rod extending between said parts. in the direction of motion of said. parts and carrying an alternative locking mechanism for said parts, said rod. being provided with an aperture extending in from its end in the direction of the length of said rod, a locking part extending into said aperture adapted to actuate said alternative locking mechanism to lock both of said reciprocating parts.

6. In combination with the mechanism of claim 1, a casing enclosing said parts and means extending from the outside of said casing for operating said locking part.

7. in a change-speed gearing having reciprocating parts and a rod 0 extending be tween said parts and carrying an alterna tive locking mechanism for said sleeves, an. actuating piece extending into a cavity in said rod, and means for operating said actuating piece whereby said alternative locking mechanism is caused to lock both of said reciprocating P2.l'i S/,Sfll(l reciprocating parts being provided with grooves in their walls adjacent to said rod, reciprocating parts in each of the last-named grooves, a stationary part adjacent to said wall having a groove therein, the construction and relative arrangement being such that when an alternative locking part is actuated into locking position itshall force one of the parts in the groove in the reciprocating part into engagement in the groove in said stationary part, substantially asand for-the purpose described.

In testimony whereof I sign this specification. i

CHARLES G. TROSIEN.

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