US1553183A

US1553183A - Outboard motor

Info

Publication number: US1553183A
Application number: US748610A
Authority: US
Inventors: James A Mould
Original assignee: EVINRUDE MOTOR Co
Current assignee: EVINRUDE MOTOR Co
Priority date: 1923-03-05
Filing date: 1924-11-08
Publication date: 1925-09-08
Anticipated expiration: 1942-09-08

Description

Sept 8. 1925.

J. A. MOULD OUTBOARD MOTOR Origifial Filed March s 1933 45 l/nivama) Joint INVENTOR.

M M; 'a

. ATTORNEYS Improvements in Outboard Motors, which the following is a specification.

' the general Object tive' connection between as possible.

, in a vertical'plane Patented Sept. 8, 1925.

or MILWAUKEE, wrsconsm, Assmnoa 'ro nvrnnunn moron,

James A. MOULD,

U 1,553,183 PATENT OFFICE.

COMPANY, OF MILWAUKEE, WI SCONSII T, A CORPORATION OF WISCONSIN. OUTBOARD MO'IOR.

Original application filed March 5,

To all whom it may concern:

Be it known that 1, JAMES A. MoULn, a citizen of the United States, residin at Milwaukee, county of Milwaukee, and tate of Wisconsin,

This invention relates to improvements in outboard motors, and more particularly to steering and reversing mechanism therefor.

I This ap lication is a division of Iii E applifiled a cation rial No. 622,740, rch 5,

In common with the invention disclosed in the application above referred to, it is of this invention to provide positive means for locking the tiller handle in connection with the drive shaft housing during ordinary operation of the device, while permitting the drive shaft housing to be fmed from the tiller for separate rotation for reversing purposes. Heretofore the torflueof the driving connections to the prope e keep the drive shaft housing in abutting relation pith some part connected with the tiller.. en the engineis at rest in such a device the torque referred tois no longer in existence, and as a consequence, steering becomes impossible. It is the purpose of the present invention dirigible parts of the outboard motor irrespective of,whet her the engine is in opera, "tionor not. v

' The more particular object of theinven- .tion claimed in this divisional. application is the provision of a device in which a very simple" positively acting releasable mechanisin is employed Said,-. the connections between 'tll& tiller and suclimechanism being direct and as simple It isa the ,tiller grip and the locking mechanism for the d-irigible parts,

while permitting venting injury to the operator upon occa-' sions when the motor tilts.

In'the drawings:

[ motor, embodying this invention.

re '1 is'an elevation of an "outboard have invented new and useful disclosed in' the 1,001,260, August 22, 1911. The device instanding of the present invention, have r has been relied upon to tomaintaina osi-" the tiller an the bracket may transom of a boat with a clamping pressure.

= Immediately beneathcrankecase 10 is a for the purposes afore- 'and hereinafterto The casing 22 is preferably. secured by bolts P v further object of this. I invention to provide for the transmission of nbvement between the tiller, grip /to oscillate for the purposelof prethe two-part bearing sleeve' of the tillerv and latch mechanism forming the particular subject'matter of this application.

Like parts are identified by the same reference characters throughout thev several views. v

4 The outboard-motor which is shown complete in Figure 2 may be of the general t pe patent to Evinrude, o.

eludes-a crank case 10, cylinders 11, and fly wheels 12. The fly wheel is mounted u n a crank shaft 9' which leads downwar l y, as disclosed in said patent," through a dirigible shaft, housing 13 toa submersible gear housing 14, wherein suitable gearingconnects. the crank shaft with a propeller shaft upon which the pro eller 15 is mounted. Constructional details which are fully shown in the Evinrude patent named above, and which are unnecessary to an underbeen omitted from the drawings herein in order to simplify the disclosure.

The bracket 16 is adapted to support the entire motor including the internal com-- bustion engine, propulsion mechanism from the stern or boat or. other small craft. The bracket vis provided with spaced arms driving connections, and

transom of a row 17 and 18; the latter of which is elongated to extend downwardly outside of the transom to apointadjacent' the water line. -A setscrew 19 in theshorter arm 17 of the be turned up to engage the casing 22 which houses latch mechanism forming an important part of this invention H be described in detail.

to the crank case 10, or is otherwise made fast thereto A two-part bearing sleeve 24 supportsfor oscillation the latch casing 22. A pintle 31 connects bracket 16 with one part of sleeve 24, thereby .providing a hinged joint-permitting the motor to tilt;

I flange 33 of thebearing sleeve is in supporting relation to the latch I The peripheral casing '22.' bus, the bearing between sholder 3 1;, and the peripheral flange 33 of 4' 24 carries the entire weight of the engine and propulsion mechanism. Upon this hearing the engine and propulsion mechanism may be 110 ing the tiller with the dirigible tubular housing 13, and the attached submersible oscillated asa unit uponthe axis of crank shaft 9 for steering purposes. The vdirigible tubular housing 13 for the downwardly extended crank shaft 9 is rigidly connected with the submersible gear housor fins which are preferably integral with the submersible gear housing 14 and comprise; a rudder 'dirigible with said housing. 1' v The latch mechanism releasably connectgea'r housing 14 and rudder 35 will now be described. a

Thediri ible tubular housing 13 extends upwardly t rough the sleeve23 which forms an integral" part of the latch casing 22. The

annulus 36 disposed within the latch casing 22 is secured to shaft housin 13. This annulus carries upon; its perip iery a pair of symmetrically disposed radially projecting lugs 29 with which means is engageable to effect the latching operation.

Formed integrally with latch housing 22 is the bearing sleeve 40 which, in the normal centered position of thelatch housing, is disposed at one side thereof and projects forwardly thereof, as is clearly shown in Figure 2. Rotatable in bearing 40 is a shaft 41, upon the end of which is supported a'worm 42 preferably having square threads 43 as indicated. These threads preferably project into. very close proximity to the annulus 36 so that the lugs 29 carried by such annulus cannotbe rotated by the Y annulus past the worm 42 without meshing with and passing between the threads.

' 'The"bearing member 40 terminates in a pair of spaced

ears

44 and 45 from which 'the aligned A pivot pins 46 projecting inwa'rdly to carrythe sleeve" extension 47 for pivotal movement about the horizontal axis.

represented by said pins. The'sleeve extension 47 rotatably supports the tiller proper designated by 'reference'character 48 and provided at 49 with the usual hand grip. The tiller proper comprises a rod or shaft which is rotatable in sleeve extension 47 and is movable therewith, in a vertical plane for oscillation about pins 46. The sleeve 47, however, is secured by said ears against rotation, whereas the tiller 48 may be rotated and is in universal connection at 49 with shaft 41.

A suitable set screw 50 may be threaded into casin member 22 for engagement with the end of shaft 41 to force the screw 42 axially into engagement with the end of bearing member 40, thereby to limit the possible end play of such shaft and to hold the universal oint in a centered "relation to the horizontal axis represented by pivot pins 46.

It will be noted particularlythat the tiller, in its normal position, is in axial alignment with the worm or screw 43 which comprises the latch. Rotation of the latch, therefore, is accomplished ,without the use of intermediate connections such as those employed in the parent application above referred to of. which this is a division. The

direct connection between the tiller and the latch results in great economy of manufacture and in a simplified construction.

In operation, one-of the lugs 29 will normally be engaged by worm 43 in the manner indicated in Figure 2. The threads 43 contacting said lug upon opposite sides thereof will obviously serve as a positive lock for engaging the tiller-oscillatory casing member 22 withthe shaft housing 13, whereby to transmit to the shaft housing and related parts all movements of the tiller irrespective of whether or not the engine is operative.

When it is desired to reverse the direction of operation of the outboard motor the tiller handle is rotated whereby to transmit rotative movement directly to the rotary latch or worm 43. By such rotative movement the lug 29 which is engaged by the worm is fed through the worm between threads 43 and is ultimately delivered from engagement by said threads. Immediately upon its delivery in this manner the torque developed by the engine and the drive to the propeller will cause the shaftwhousing l3 and annulus 36 and other parts connected therewith to rotate approximately 180 until the other of lugs 29 contacts with the threads 43 of the Worm and brings the shaft housing and related parts to rest. If the lug strikes an inclined portion of threads 43'the impact may be sufficient to cause the worm to rotate slightly to receive and positively to lock the lugs. Otherwise it may be necessary for the operator, upon feeling the impact, to rotate the worm slightly until the lug has been fed into thethreads of the worm to a position corresponding to the position of lug 29, as indicated in Figure 2. In such a position the propeller will be in.the

full line position in which it is shown in,

sections 41 and 48-is useful only where the said mechanism for the release of said parts motor is of the tiltable variety, in which oscillation occurs about a transverse horizontal axis to permit the submerged parts of the motor to swing upwardly when a submerged obstacle is encountered thereby; When the motor tilts as aforesaid, a rigidltiller handle will be oscillated into contact with the rear seat of the boat to which the motor is attached and serious injury to the hand ot-the operator might result. In the constuction herein illustrated the motor is free to tilt with respect to the tiller, due to the universal joint in the tiller and to the horizontal pivot by which the bearing 47 is mounted. This arrangement transmits to the steering parts of the motor all movements of the til ler in a horizontal plane while leaving the tiller free to swing about the axis of pins 46 in a vertical plane. Thus, when the motor tilts the hand of the operator will not be forced against the seat and nevertheless a positive connection will be maintained through the universal joint between the grip portion 49 lot the tiller'and the worm or latch member.

I claim:

1. In a device of the character described, the combination with an outboard motor having rotatably mounted dirigible parts, of a. manually operable shaft adapted for connection with said parts for steering purposes, and latch mechanism, directly connected with said shaft and o rative releasably to engage said shaft positively with one of said parts.

2. The combination in an outboard motor having rotatably mounted dirigible parts, of latch mechanism mounted for oscillation co-axiall with said parts, a manually operable sha t directly connected with said latch mechanism, and complementary latch mechanism connected with one of said parts and adapted for positive interoonnectlon with said oscillatory latch mechanism, said first mentioned latch mechanism being formed for releasable positive engagement with said complementary latch mechanism upon the rotation of said shaft.

3. The combination in an outboard motor having rotatably mounted dirigible parts, of

a controlling device for said parts supported for oscillation co-axially therewith and incasing about an eluding a latch casing, latch mechanism supported for non-restricted rotation in said axis substantially normal to the axis of rotation of said parts, and adapted upon rotation to engage said parts positively and during its continued rotation in the same direction subsequently to release said arts, and a manually operable shaft directly connected with .sai latch mechanism and projecting therefrom substantially upon' the axis of movement thereof, whereby to 'be adapted to actuate without requiring intermediate motion transmitting connections. 1

4. In a device of the character described, the combination with the rotatably mounted dirigible parts of an outboard motor, of a head carried by said parts and provided with lugs projecting radially, a casing mounted for oscillation co-axially with said parts, a shatt journaled in said casing for with and adapted releasably to engage said lugs 5. In a device of the character described, the combination with the rotatably mounted dirigible parts of an outboard motor, of a head carried by said parts and provided with lugs projecting radiall a casin mounted for oscillation coaxially with sai parts, -a shaft journaled in said casing for rotative movement/about its own axis, said shaft being disposed substantially tangentially with-reference to the path of movement of said lugs, and latch mechanism mounted on said shaft and movable therewith and releasably to engage said lugs, said mechanism including members adapted to engage each lug upon opposite sides thereof, whereby positively to look said cas ing to said head. i

6. In a device of the character described, the combination with rotatably "mounted dirigible parts of an outboard motor, or a head connected with said parts and provided with a radially projecting lug, a latch casing supported for oscillation co-axially with said head, and latch mechanism comrising a worm mounted insaid casing for intermeshing enga ement with said In 1 7. In a device 0 the character descri d, the combination with rotatably mounted dirigible parts of an outboard motor, of a head connected with said parts and provided with a radially projecting lug, a latch casing supported for oscillation co-axially with said head, and latch mechanism comprising a worm mounted in said casing for mtermeshing engagement with said lug, together with a manually engageable member operatively connected with said casing and said worm for controllin the oscillation of said casing and the rotation of said worm.

8. In a device of the character described, the combination with rotatably mounted dirigible parts of an outboard motor, of a head connected with said parts and provided with a radially projecting lug, a latch casing supported for oscillation co-axially with said head, and latch mechanism comrising a worm mounted in said casing for intermeshing engagement with said lug,

9. An outboard motor including the combination with a memberrotatably adjustable for steering and reversing purposes and provided with a radially projecting lug, of a tiller rotatable upon its axis, and latch means rotatable with said tiller for positively engaging said lug upon opposite sides, said means being operable by the rotation of said tiller to a lug releasing position.

10. In an outboard motor the combination with a member rotatably adjustable for steering and reversing purposes and bodily adjustable upon a transverse axis, of bodily rotatable latch mechanism adapted to be releasably engaged with said member and connected for bodily movement therewith, a tiller connected with said latch mechanism and having a grip portion independently adjustable vertically, and means operatively connecting said latch mechanism and said tiller for manually rotating said latch mechanism for the release ofsaid member.

ll. In an outboard motor the combina- I tion with a member rotatably adjustable for steering and reversing purposes, of lugs carried by said member, a casing enclosing the portion of said member which carries said lugs, a screw-threaded device rotatably mounted in said casing and adapted to act upon said lugs, a bearing sleeve integral with said casing and extending outwardly therefrom, said sleeve comprising two portions hinged upon a transverse horizontal axis, and a shaft connected With said screwthreaded device and extending through said sleeve and provided with a universal joint aligned with the axis upon which said sleeve is hinged.

12. An outboard motor including the combination with a member rotatably adjustable for steering and reversing purposes, of a radially projecting lug upon said member, a tiller rotatable upon its axis and universally jointed intermediate its ends, a bearing sleeve bodily movable about the axis upon which said member is adjustable and provided with journals upon each side of said universal joint, said sleeve being hinged for movement upon one axis passing through said universal joint but not upon another, and a latch mechanism connected to said tiller and bodily movable with said tiller sleeve and adjustable by the rotation of said tiller to and from a position for engagement with a lug upon said member.

JAMES A. MOULD.

(if) i