US1362772A - Accessory for motor-vehicles - Google Patents

Description

J. BIJUR. ACCESSORY FOR MOTOR VEHICLES.

APPLlCATlON FILED AUG 10, 1917. 1,362,772. Patented Dec. 21,1920.

2 SHEETS-SHEET I.

INVENTOR Y I Bi AGO R NEYJ I Jx BLUR.

FOR MOTOR VEHHILES.

ABC SSURY INVENTOR JOSEPH IBIJ'UR, OF NEW YORK, N. Y., ASSIGNOR, BY MESNE ASS MOTOR APPLIANCE COMPANY,

PATENT OFFICE.

IG-NMENTS, T0 BIJUR A CORPORATION OF DELAWARE.

ACCESSORY FOR MOTOR-VEHICLES.

Application filed August 10, 1917. Serial No.

To all whom it may concern.

Be it known that I, JOSEPH BIJUR, a citizen of the United States, and a resident of the borough of Manhattan, in the city, county, and State of New York, have invented an Improvement in Accessories for Motor-Vehicles, of which the following is a specification.

This invention relates to electrical apparatus and with regard to certain more specific features, to the mounting of a dynamo electric-machine and related powertransmitting parts.

One of the objects thereof is to provide apparatus of the above type of enhanced simplicity and effectiveness. Another object is to provide a simple, secure and inexpensive mounting for an electric, starting motor with relation to an internal combustion engine. Another object is to provide a mounting of the above type in which the apparatus is readily assembled ordismounted and is nevertheless rigidly held assembled in condition for eflicient action.

Other objects willsbe in part obvious and in part pointed out hereinafter.

The invention accordingly consists in the features of construction, combinations of elements and arrangement of parts which will be exemplified in the construction hereinafter set forth, and the scope of the application of which will be indicated in the following claims.

In the accompanying drawings in which is shown one embodiment of this invention, Figure 1 is a side view partly in section showing the mounting of the apparatus on an automobile engine, part of the construction being broken away.

Flg. 2 is a View similar to-Fig. 1 with the device in position to be withdrawn from the engine.

Fig. 3 is a fragmentary end view of the device showing a preferred mounting of the motor relative to the flywheel. Similar reference characters refer to similar parts throughout the difierent views of the drawings.

Referring now to the figures of the drawing, there is shown a fragmentary portion of an engine having a circular opening 2, the edges 3-4 of said opening only being machined to form a mounting in which the apparatus may be rotated by hand. The

Specification of Letters Patent.

Patented Dec. 21, 1920.

machined portions shown for only a short distance thus dispenslng with the necessity for machining the inner port on 5 of this opening, which inner portion 15 preferably made of larger diameter.

The starting motor 6 of usual construction, which need not be described in detail, has an end head 7 preferably having a flange overlapp ng the yoke 8. Preferably integral with the end head 7 and eccentric with respect thereto there is a circular pilot 13, the edges 17 and 18 of which are accurately machined to fit within the machined surfaces 3 and 4 above described. The intermediate portion of said pilot is preferably made of smaller diameter for convenience of manufacture and assembly. Coaxial with the armature shaft and therefore eccentric with respect to the pilot is the bearing 23 the washer 24 and lockring 25 maintaining the bearing, the armature shaft and the hub in proper relative position. A screw 14 preferably extends from a tapped opening 15 in casing 1 into an opening 16 in the hub 13, securely maintaining the apparatus in position. An oil well 22 extends from the outside of the casing to bearing 23.

On the extension 9 of the armature shaft there is mounted a transmitting mechanism preferably of the screw shift type which need not here be described in detail as it is the subject matter of the co-pending application of Joseph Bijur, Serial No. 145,839 filed February 1, 1917. It may be briefly noted that the screw shift consists of a pinion 10 adapted to cooperate with the flywheel gear 11, the inertia of a nut 19 threaded upon shaft 9 as at 20 and located within the barrel 12 transmitting longitu- (linal movementto the pinion 10 through the spring 21 to cause it to cooperate with gear 11 tostart the engine. started it imparts such 10 as to transmit to the nut an angular velocity greater than that ofthe shaft so that it will override the screw-threaded portion and draw the pinion out of mesh with the flywheel. By referring to F ig. 1, .it will be seen that the barrel 12 is larger in diameter than the pinion 10 and extends to a point within the contour of the flywheel gear 11 so that it would be very diflicult if not impossible, without special arrangements, to

speed to the pinion withdraw the motor and its attached screw shift from the casing as the pinion 10 or the barrel 12 would strike the flywheel 11.

Further detailed description of the screwshift is not necessary as this element in itself does not constitute a part of the present invention. It is to be understood that other forms of power-transmitting devices may be used to advantage but there are particularly beneficial features in the use of the specific form of screw shift shown.

The construction of the apparatus having thus been described and the shift being assumed to be already mounted on the extended motor shaft, the manner of attaching the unit to the engine is substantially as follows:

With the portion of the hub nearest the flange 7 brought into alinement with that portion of the opening 2 nearest the flywheel, the end of the shift is inserted into this opening and the pilot will follow, the machined surfaces 17 and 18 fitting snugly in the machined surfaces 3 and 4:. The device is now in the position shown in Fig. 2. The motor is now grasped and the casing rotated through an angle of approximately 180 degrees. This, as is readily understood, will cause the axis of the motor and its extended shaft to move through an arc of a circle with the center of the pilot as its axis from the position shown in Fig. 2 to that shown in Fig. 1 until the screw shift is in proper position relative to the flywheel gear as shown in Fig. 1, when opening 16 in the hub will register with the tapped opening 15 in the casing and screw ll may be inserted and the device secured in position.

If, for any reason, it be desired to remove the motor this may be done by simply reversing the operations above described. The screw s is removed, the motor casing is turned through 180 degrees, thus movin the shift and its barrel out of alinement with the edge of flywheel 11 when the motor and its attached shift may be withdrawn from the engine casing as a unit by a simple longitudinal movement.

If the pilot instead of being made eccentric as above described were made concentric with the shaft or if any concentric form of mounting be provided. more particularly with an inboard shift of the type disclosed. it is obvious that it would be very inconvenient. if not impossible, to remove the motor from the casing without detaching the shift or some part thereof from the motor. In addition to the greater amount of time consumed in doing this it is to be noted that. there would be great difficulty" in getting at the shift, particularly in the case of an inclosed casing.

There are some designs of engine on the 's a circular opening engine casing havmarlret in which there like opening 2. in ti e anaem a ing a fixed relation to the flywheel. In such cases if the axes of the pilot, screw shift and the flywheel were arranged in a single plane the bearing of the armature, of course, being within the pilot it frequently happens that the rotation of the motor in the manner above described would not remove the screw shift sufliciently from the flywheel to enable the barrel member 12 to clear the edge of the flywheel.

In such cases the arrangement shown in Fig. 3 is preferably employed. In this figure similar parts bear the same reference numerals as in Figs. 1 and 2, except that they are primed. Instead of arranging the three axes in a single plane, it is noted that the axis E of the pinion is offset from the line A-ll connecting the axis of the pilot with that of the flywheel. The diameter of the pinion having a definite value to procure the power ratio desired. this axis must obviously be located upon arc C-D concentric with the flywheel. In the preferred form the axis of the shift is located at the point of intersection of this arc with the perpendicular dropped from the pilot axis A. With the arrangement just described if it is desired to remove the motor from the casing it is only necessary, after taking out the fastening screw to rotate the device in a clockwise direction until the pinion axis E is on the continuation of line A-B. By this process it is seen that the axis of the screw shift has been displaced from the flywheel by the distance F-G which is sufficient to enable the barrel 12 to clear the flywheel 11.

If the axis of the screw shift were located at the point F on the line A-B. it is obvious that a rotation of the device would effect only a displacement of the shift with respect to the pinion by a distance equal to twice tr-F. In the device shown this would not be sufficient to enable the barrel to clear the flywheel edge.

It is, of course, obvious that the axis of the shift need not be located at the point E, but may be positioned at any point on the arc (-D. If located below point Fl shown in Fig. 3. an even greater displacement of the pinion from the flywheel would be secured than. in the case shown.

It will thus be seen that thereis herein described apparatus in which the several features of this invention are embodied. and which apparatus in its action attains the various objects of the invention and is well suited to meet the requirements ofpractical use.

As many changes could be made in the above construction. and many apparently widely different embodiments of this invention could be made without departing from the scope thereof, it is intended that all matter contained in the above description or shown in the accompanying drawings shall be interpreted as illustrative and not in a limiting sense.

Having described my invention, what I claim as new and desire to secure by Letters Patent is:

1. In starting apparatus for motor vehicles in combination, an engine, a driven gear connected therewith, a circular support associated with said engine, a member cooperating with said circular support, power transmitting mechanism having a bearingin said member eccentric thereof, whereby by rotating said member, said power transmitting mechanism may be brought into and out. of mesh with said driven gear.

2. In apparatus of the character described, in combination, an engine having a geared flywheel and a casing, a circular opening in said casing adjacent said flywheel, a pilot within said opening, a motor supported by said pilot, an eccentric bearing within said pilot, and a screw shift passing 'through said eccentric bearing and including a pinion adapted to mesh with said flywheel to deliverpower from said motor, whereby manual turning of said pilot will move said shift, to clear the periphery of said flywheel.

3. As an article of manufacture, a starting motor, including a shaft, a yoke and two end heads, an'inboard screw shift projecting beyond one of said heads, and on an extension of said shaft, and a circular motor supporting pilot integral with said latter head, and eccentric with respect to said shaft.

4. In starting apparatus for motor vehicles, in combination, an engine casing, a flywheel, a starting motor mounted on said casing, said starting motor having a directacting inboard shift for cooperation with said flywheel, said shift including pinion teeth and an element larger in diameter than that determined by said pinion teeth, said teeth being between said flywheel and said element, and means whereby said shift may be moved parallel to itself in a direction to cause the periphery of said larger element'to clear the rim of said flywheel.

5. In starting apparatus for motor vehicles, in combination, an engine, a driven gear connected therewith, a support having a circular opening therein, a starting motor, an inboard direct-acting drive, having a portion beyond said driven gear, which overlaps the periphery of the same, and a pilot rigid with the casing of said motor eccentric with respect to said drive and cooperating with said circular opening, whereby different sizes of driving gears may be employed With one and the same size and location of opening in the support, and whereby said overlapping periphery of the drive may be made to clear said driven gear for ready application and removal of said starting motor with its drive.

6. In starting apparatus for motor vehicles, in combination, an engine casing, a flywheel, a circular opening in said casing adjacent said flywheel, a starting motor having an eccentric pilot fitting in said circular opening, said starting motor having a direct acting inboard screw shift, for cooperation with said flywheel, said screw shift including a pinion, and a concentric barrel member larger in diameter than said pinion, said pinion being intermediate said flywheel and said barrel member, whereby said barrel member may be made to clear said flywheel for ready application of said motor together With its shift as a unit, and whereby different sizes of driving gears may be employed With one and the same size-and location of the opening in the engine casing.

7. In engine starting apparatus of the type in which the motor has an extended shaft upon which is mounted a driving gear for cooperation with a driven gear upon the engine and in which the motor has a pilot integral therewith for fitting in a corresponding opening in an engine casing; the arrangement of said pilot eccentric of said shaft, whereby different sizes of driving gears may be employed with one and the same size and location of the opening in the engine casing.

8. In engine starting apparatus of the type in which the motor has an extended shaft upon which is mounted an inboard direct acting drive having a portion beyond the driven gear on the engine, periphery of which portion overlaps the periphery of said driven gear and in which the motor has a pilot integral therewith for fitting into a corresponding opening in the engine casing; the arrangement of said pilot eccentric of said shaft, whereby the overlapping periphery of the drive may be made to clear the periphery of the driven gear for ready application and removal of the starter with its drive.

In testimony whereof I have signed my name to this specification.

JOSEPH BIJ UR.

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