US1023423A

US1023423A - Seat.

Info

Publication number: US1023423A
Application number: US67827312A
Authority: US
Inventors: James R Graves
Original assignee: Individual
Current assignee: Individual
Priority date: 1912-02-17
Filing date: 1912-02-17
Publication date: 1912-04-16
Anticipated expiration: 1929-04-16

Description

Q J. R. GRAVES.

SEAT.

APPLIOAQION FILED FEB. 17, 1912;

Patented Apr. 16, 1912.

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Specification of Letters Patent.

SEAT.

Patented Apr. 16, 1912.

Application filed February 17, 1912. Serial No. 678,273.

T 0 all QU/LOIR it may concern:

lie it known that I, JAMES R. GRAVES, a citizen of the United States, residing at Amesbury, in the county of Essex, State of Islassachusetts, have invented a certain new and useful Improvement in Seats, of which the following is a specification, reference being had therein to ,the accompanying drawlngs.

In a certain type of seats employed principally as additional seats in automobiles, but in some cases used elsewhere, the. seat proper is in hinged connection with a seatframe provided with a horizontal cross-bar having a socket fitted to an upright journal upon a supporting arm, the seat-frame being adapted to swing in a horizontal plane around the said journal, and'the seat proper being adapted to swing in a vertical plane upon its connection with the seat-frame. A seat of such type is shown and described in II. S. Letters Patent to Graves and Benson,

No. 937,595, granted Oct. 19, 1909. When a seat of the said type is mounted in connection with the side of an automobile the seatframe may be swung around into a position in which the cross-bar stands at right angles to the said side with the seat facing forward, or the seabframe may be swung into a position in which the cross-bar extends parallel with the said side. \Vhen the seat-frame occupies this latter position the seat may be turned up out of the way.

The invention consists in a seat of the general construction just describedhavingcombined therewith improved locking devices for holding the seat-frame in either of the two positions just explained, at will.

The invention is illustrated in the drawing in which latter,

Figure l is a view mainly in elevation but partly in vertical section of a seat, seatlrame and supper-ting-arnr having my invention applied thereto, the top part of the seed-frame being broken away. Fig. 2 is a detail view in plan.

l'laving reference to the drawings,r\t A is shown the seat proper, and at 13 is shown the back, the seat-frame being formed of metal, usually in practice, with its opposite side-portions o, l), united at their lower ends with horizontally-extending side-arms b, b, which latter at their front ends are .joined together by the cross-bar If. The seat is hinged to the side-arms I)", I), by meansof pivotal pins c a engaging with the said side-arms and with depending lugs'a, a, carried by the seat The supporting arm is marked C. This supportingarm is in practice applied to or connected with the support, in general, for the seat.v In the Letters Patent aforesaid the said supporting arm is applied removably to a stand which is at-- tached to one side of an automobile. At 0 is 'the upright pin at the upper end of the supporting arm, constituting the journal for the seat-frame, and as shown in. Fig. 1 the cross-bar b of the seat-frame is formed with a socket'which receives the said pin. upper end of the said pin or journal 0 is reduced in diameter and screw-threaded and has screwed upon the same a nut 1 between which and the top of the cross-bar is confined a plate 1.

The plate lis held from turning relative to the pin or journal 0 by engaging it with the latter in convenient manner. Herein' the upper 'end of the pin or journal next below the screw-threaded portion thereof is formed of polygonal shape in cross-section, and the plate 1 has therein an opening which conforms to the exterior of the said polygonal portion of the pin or journal and tits the latter. Thesaid plate, held from tin-hing relative to the pin or journal of the supporting arm C, forms a part of the means-for locking the seat-frame in the desired position after having been turned into such position. It is furnished with holes or sockets 1 1, located at an angular distance apart corresponding in number of degrees with the diti'erent positions which the seatframe is required to have. In this instance .the two holes 1, 1*, shown in the drawing are )0 degrees apart. A locking pin 2 is movably combined with the cross-bar b by forming the said cross-bar adjacent its hub which tits upon the pin or journal (1 with a cylindrical hole extending vertically therethrough, the said pin being contained within the said hole and fitting the same with capacity to slide vertically therein. When the upper end of the said pin is projected into one of the holes or sockets of the plate 1,the seat-frame is locked thereby in the angular position then occupied by it, so as to [H'UVUHLt!Il'lllllglHUVOlllUllt of the seat-frame around the pin or journal (1. The locking pin or bolt. 2 is operatively engaged with an actuating lever 3, which is pivoted at '3 in connection with one or a pair of lugs de- The I ment is secured, in the present instance, by forming a transverse recess in the lower portion of the pin or bolt, and entering into such recess the rounded inner end of the lever 3. The lever 3 LS actuated with yielding force to turn the same so as to push the pin or bolt 2 upward, and to keep it up, as by means of a spring at which is confined between the lever and the under side of the cross-bar 12 The outwardly-extending portion or arm of the lever constitutes a handle by means of which the lever may be moved by hand to work the pin or bolt.

The pin or bolt 2 preferably fits closely and snugly within the hole in which it is contained in the cross-bar b and preferably also a close fit is provided for between the'engaging end of the said pin or bolt and the holes or sockets 1, l, in the plate 1. .l.hereby looseness or play of the seat-frame in a horizontal direction after being locked in position is prevented. The locking pin or bolt cannot become forced by strain or a blow of the socket or hole in plate 1 which is occupied by it at any given time. Consequently, the seat is held locked positively in the desired position. As in the Letters Patent aforesaid the pivotal pins a, a, connecting the seat with the side-arms b, b, are located at a short distance horizontally from the cross-bar 6 When the seat is turned down into position for use, as in Fig. 1, it extends over the said cross-bar and is supported in its horizontal position by the cross-bar.

lVhat I claim is: a

' The combination with a supporting arm and a seat-frame provided with a horizontal cross-bar having a socket fitted to an up right journal upon said supporting arm, of a locking plate held from turning movement relative to said supporting arm and provided with holes or sockets, a locking pin or bolt movable vertically through a hole in the said cross-bar which itfits and adapted to enter by one end thereof into either of the said holes or sockets. and an actuating lever pivoted to the said cross-bar and operatively combined with the said belt or pin. In testimony whereof I afliX my signature in presence of two witnesses.

JAMES GRAVES.

\Vitnesses JAMES DRUMMOXD, G. W. KINNE.