US1360966A - Reversible car-seat - Google Patents

Description

R. B. MARSH.

REVERSIBLE CAR SEAT. Y

APPLICATION FILED .LULY 24,1919.

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said back at either position and inclination'of the seat may beV PATENT OFFICE.

RICHARD B. MARSIcL 0F PHILADELPHIA, PENNSYLVANIA,

REVERSIBLE CAR-SEAT.

Specification of Letters Patent. Patented NOV. 30 1920.

Application ledV July V24, 1919. Serial No. 313,084.

T 0 all li/wm t may concern.' 1 Be it known that I, RICHARD B. MARSH, a citizen of the United States, residing in Philadelphia, Pennsylvania, have invented Reversible Car-Seats, of which the following is a specification. Y One object of my invention is to provide a car seat with relatively simple and substantial back supporting means whereby the inclination of the backV may be readily adjusted, the arrangement and construction being such as to insure. a firm support for of its two extreme positions. Y 1 Y I further desire to provide a combination of parts for reversibly supporting a car Seat backin such manner as to make possible-the regulation of its movement with a view to braking or retarding it to a predetermined extent in order to prevent'the violent jars or shocks otherwise given to the Vwhole Seat structure when the backisshifted-from one position to another.

. I further desire to provide a device of the abo'venoted class with means for reducing the wear between certain of'its moving parts and permitting the quick and convenient renewal of certain fof them when this is necessary.` Y

I also desire Vto provide lsimple and substantial means for operatively I connecting the seat supporting rocker plates with the shaft connecting the side leversV so that the altered in unison vwith the shifting .of the ing theV inclination'ofV a car seat back as it is moved from one `of its extreme positions'to another, the mechanism being so assembled Y as to insure of such inclination being the Same on both sides of Va central' vertical plane. .4.5

These objects and other, advantageous ends I attain as hereinafter set forth, reference being had to the accompanying drawings, in 'which,- K

Figure 1 is a side elevation Ypartly in verti'cal section, illustrating the mechanismv at 'one end of the seat foraccom'plishing the fabove notedl objects in accordance with my invention, it being understood `that such l -mechanismand arrangement of parts is duplicated at the oppositeA end of said seat;V

Vas that shown in Fig. lat the other eXtreme Aof its path of move- Fig. 2 is a plan shown in Fig. l; y

Fig. 3 is an elevation` partly in section,

on the line 3-3, Fig l;

' Figs. 4 and 5 are Sections on the lines 4 4 and 5 5, Fig. l.

In the above drawings 1 represents one of the end plates of a car seat which is illustrated as of generally rectangular outline and made` of pressed metal with a peripheral flange. This end plate is rigidly connected to the Similar plate at the other end the seat by two transverse members 2 constituting connecting rails of inverted U- shaped Section, eachk flanged at its ends for the reception of the bolts 3 whereby it is held 1n place. Said members are rigidly connected adjacent each of therseat end plates by transverse braces eted in position. A rotatable Shaft 5 jourfixed to it adjacent each plate a segmental arm 6 ianged at its outerend concentrically with vthe shaft 5 and provided with a series of uniformly spaced pins 7 constituting teeth. These `are designed vto enter Slots in a link 8 pivotally connected to the transverse brace 4 and having a pin or stud 9 at its'. outer end operative in a channel shaped guideway 10 fixed to the lowerV edge of the rocker plate 11. The latter is slidable longitudinally across the connecting members 2 upon which it is guided by headed rivets 12 so set therein that their heads extend' over the lowerfflange of their coacting member which is movable between them g-it being noted that said rockerV plate has a substantially T-shaped section. This plate as is customary, 'has projecting from its upper lflange two pinsV or studs 13 designed to fit into suitable socketsl 14 in the under side of the seatproper..

flVith this arrangement of parts a partial rotation of the shaft 5, through the Segmental arin and the pivoted link 8 willcause longitudinal movement of the rocker-plate 11 upon the end plate-connecting members or rails 2, from one extreme position, such 1, to a Similar-position ment g--the plate 11 as is usual, having its flanged lower edgeso formed as to causeits Vtop edge and therefore the seat supported thereon, to be oppositely inclinedY when in Y its two extreme positions.

of certain of the parts 4 suitably riv- For supporting theseat back, I fix tol each end of the shaft close to the adjacent end plate 1 an elongated Var1n15 ordinarily known as aside lever and in accordance with my invention, the outer end of this vlever has formed in 1t a circular opening whose wall A is beveled for the reception of a correspondingly beveled or tapered hardened steel vao Washer 16. The standard 17, to which one end of the seat back is attached, has its `lower end circularly recessed (F ig. 4) and is` faced adjacent to said recessv for bearing upon one face of the side lever 15, to which 1t is held by a bolt 18 passing through it and'through said washerv 16. VThe head of this bolt iscounter-sunk in a boss 19 formed integral with the lower end of the standard 17 and its body is threaded into the washer 16 whose outer face is recessed for the reception of a vjam, or lock nut 20 ;--it being noted that by properly adjusting the bolt 18 any ldesired degree of frictional resist' ance may be causedl to oppose relative movement of the standard 1 7 and the side lever fao 15. To prevent relative rotation of the washer 16 and the standard 17, the first of these has `projections 16a fitting suitably placed depressions in the adjacent face of said standard. Y f

Each ofthe plates 1 has'relatively deep Y notches" or recesses 21 formed in its upper edge concentrically with the shaft 5, for the Yreception ofthe boss 19 of its particular seat standard 17, and the arrangement is such thatthe bottom of each recess forms a stop or abutment for firmly supporting the standard in one of its eXtreme positions.

`For`insuring that the standards 17 and therefore the seat back which they Vsupport shall make the same angle with the central verticalplane through the shaft 5 in both iof'its extreme positions, I form the lower end- 'of each standard with side projections land connect thesewith the seat end plate by Vtwo similar side links 22. The preferred Vformfof pivotal connection between each of the side levers and the eiidplate 1 is shown in-Fig. 3, and consists of a'bolt23 having onelend supported by said plate while its opposite end isgsimilarly supported by a VVbracket plate 24: parallel with but spaced away from said end plate. On this ,bolt is #mounted al hardened steel bossor collar 25 which is rigidly clamped by the nut 26 between the bracket plate 24 and the end plate '1,"a'nd on this Abushing theside link 22 is I 'f'rot'atably mountedv so Vthat owing Vto its nature the wear of this boss is relatively turn the standard 17 about its bolt 18 as a pivot and thus vary its inclination to the vertical. Y

T he upper end of each of the side links 22 is formed with a circular. pressed out portionn 28 fitting into a correspondingly formed recess in thelower end of the standard 17 where it is pivotally held by a bolt 29 whose head is countersunk in said standard and whose nut is likewise counter-sunk in the recess in the side link. Y f Y With the above described.arrangement of parts which as above noted, is the Vsame at each end of the seat, the standard 17 and therefore the seatY back carried thereby,'is firmly maintained in either of its eXtreme positions, since its lower end is supported in the recess 21 of the end plates and is held from turning on its pivot bolts 18 by the side links 22 whensaidjseat is inoved from one` extreme position to the other. The arrangement of each of theside levers 15 and links 22 isV such that the former swings on its pivot from a position in which it is inclined at the desired angle on one side of a vertical plane throughf the shaft 5, to a second position in whichit is inclinedat the 'same angle on the opposite sideofsaid plane. If the various parts were, loosely connected by pivots as is ordinarily the case,

it is .obvious that when so moved the seatv backv and its vassociated mechanism would be suddenly and violentlyV brought to rest at its other extreme position with a, possi,-

bility .of injur but by setting up the bolt i 18 and thereafter clamping it in the given position by the'jam nut 20, any desired braking force may be exerted to retard the movement of the seat, so thatit is prevented from being violently moved and then suddenly brought to rest. i i f `Iclaim: *y

1'. The combination .in a seat-'reversing means, of a seat end plate, a bearing bracket spaced from said plate, a shaft rotatably engaging said plate; bolts extending between the kend plate and the bracket, a seat back standard; a side levervXed to the shaft and pivoted to said standard; and two side links 'means', of a seat end plate, a-bearing Vbracket spaced from said plate, said lbracket and end .each pivoted to the ystandardvand having a ,Y

plate having aV plurality of slots therein, 1

shaft rotatably engaging said plate; bolts vextending between the end' plate and the bracket and having theinends adjustably mounted in the slots, a seatback standard ;a

side lever -fixedrto the shaft and pivoted to Y Y said standard;fand twoside links each pivoted to the standard and having their lower ends mounted on said bolts.

3. The combination in a seat back reversing means of a supporting structure; a side lever pivotally mounted thereon; a seatback standard pivoted to said sidelever; and two side links respectively connectingl said standard with the supporting structure; one

at least of said links having its lower end supported in a slot in the supporting structure to permit of its adjustment to vary the angular relation of the seat back standard and the side lever.

4. The combination in a seat reversing means of a seat end plate havingslots therein; a shaftrotatably engaging said plate; a side lever fixed to the shaft; a Vseat back standard pivoted to said side lever; two side links both pivoted to said standard; and bolts entering the slots of the end plate for adjustably connecting said side links thereto.

5. he combination in a seat reversing mechanism of a side plate; a shaft rotatably engaging the same; a side lever iiXed to the shaft; a seat back standard pivoted to saidV side lever; two links pivoted to the seat back standard; a hardened bushing rotatably mounted in each of the side links; and bolts clamping said bushing in openings in the end plate for pivotally connecting said side links thereto.

6. lThe combination in a seat reversing means of a seat end plate having a bearing bracket; a shaft rotatably engaging said plate; bolts extending between the end plate and the bracket; hardened bushings clamped by said bolts between the end plate and said bracket; a seat back standard; a side lever fixed to the shaft and pivoted to said standard; and two side links each pivoted to the standard and rotatably engaging one of said RICHARD B. MARSH.

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