|Publication number||US830826 A|
|Publication date||Sep 11, 1906|
|Filing date||Dec 30, 1905|
|Priority date||Dec 30, 1905|
|Publication number||US 830826 A, US 830826A, US-A-830826, US830826 A, US830826A|
|Inventors||Francis De Fontes|
|Original Assignee||Francis De Fontes|
|Export Citation||BiBTeX, EndNote, RefMan|
|Referenced by (8), Classifications (2)|
|External Links: USPTO, USPTO Assignment, Espacenet|
PATENTED SEPT. 1l, 1906.
F. DE FONTES.
APPLICATION FILED DBO. so. 1905.
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FRANCIS DE FONTES, OF BALTIMORE, MARYLAND.
Specification of Letters Patent.
Patented Sept. 11', 190.6.
Application filed December 30, 1905. Serial NO. 294,010.
To f//ZZ whom, it mty concern.'
Be it known that I, FRANCIS DE FoNTEs, a citizen of the United States, residing at Baltimore, in the State of Maryland, have invented certain new and useful Improvements in Head-Rests, of which the following is a specilication.
This invention relates to head-rests of that class which are supported on a standard that is vertically adjustable with respect to the back of the chair and which are also pivoted at the top of said standard, so as to be capable of tilting in a back and forward direction; and the object of this invention is to combine with the mechanism of such a head-rest a spring which will operate to allow of a yielding movement of the head-rest back and forward on the pivot after the head-rest has been adjusted approximately to a position to suit the individual.
The invention is illustrated in the accompanying drawings, in which- Figure l is a side elevation ofthe head-rest, a portion being shown in section. Fig. 2 is a vertical section of the head-rest and standard7 the section being taken on the line 2 2 of Fig. 3. Fig. 3 is a top view showing on a larger scale the segment-arm and the spring-supporting plate which is pivoted, this view illustrating those parts below the line 3 3 of Fig. 1. Fig. 4 is a top perspective view of the plate that, is rigidly attached to the under side of the hea -rest and carries the ears by which the latter is pivoted. Fig. 5 is a perspective view of the spring-latch. Fig. 6
is an inverted or bottom view of one end of the pivoted spring-supporting plate. Fig. 7 shows a bottom view of the guide-bar below the spring-latch.
The letter A designates the head-rest proper, and B the supporting-standard, having a straight rack c, by which the standard and head-rest may be vertically adjusted relative to the back of the chair, which latter is not shown in the drawings.
The letter 7L designates the pivots, by which the head-rest may be tilted in a back or forward direction. i
At the under side of the head-rest are two ears d, which are integral with a plate d, which is rigidly attached to the head-rest. These ears and the plate d are shown separately in Fig. 4.
The upper end ofthe standard B has a rigid arm e projecting rearward from the head-rest, and this arm on its outer vertical edge is provided with a segment-shaped rack e, having teeth e2. The segment-rack has at its top a proj ecting-tang f, and at its bottom a projecting tang f. In the present instance the arm with the segment-rack e has at its base a cross-piece or T-piece e3, which projects down on the side of the standard B and is secured thereto by a screw e4.
A plate G is pivoted to the same pivots 7L, on which the ears d of the head-rest tilt. This plate projects rearward fromthe pivots and supports the spring or springs I, interposed between it and the head-rest. In the present instance this plate G has a T-shaped slot y', which takes over the upper end of the standard and arm with the segment-rack, as shown in Fig. 3.
The pivoted plate G carries at its free end a latch 7c, separately seen in Fig. 5. The latch is shown in the present instance at the bottom side ofthe pivoted plate and one end of the latch has a hole c and is attached to the plate by a pivot-pin 762, inserted through said hole lc and also through a hole k3 in the pivoted plate. The latch has a thumb-piece c* at its free end to facilitate shifting. It also has on outer edge a flange or lug Z. This pivoted latch 7c engages the teeth e2 on the segment-rack and serves to sustain the pivoted plate G at any desired elevation. A guide-bar m is secured on the under side of the pivoted plate and below the latch and is seen separately in Fig. 7 and in broken lines in Fig. 3. This bar rests against two circular bosses n 'n' and is secured by pins or screws in holes n2, formed in said bosses. A lug o is also on the under side of the pivoted plate adjacent one of the bosses n. A steel-wire spring p is wound once around the circular boss n, and the short end of the wire is held by being bent in the space between the boss n and the lug o. The long end of the wire spring extends from the saidboss n alongside of the outer edge of the latch 7c and rests on the flange or lug Z, as shown in broken lines in Fig. 3. This lug keeps the wire from slipping off said edge. The elfect of the wire spring p is to keep the pivoted latch 7c pressed into engagement with the teeth e2 on the segmentrack. The free end of the pivot-plate G'is adjustable up and down on the segment-rack and is limited in its movement by the top and bottom tangsff on the stationary arm e.
As the guide-bar Im rests against the two bosses n n, which are on the under side ofthe pivoted plate G, a space is formed between IOO IIO
said bar and plate, in which the pivoted latch k may swingfreely. v z; s
The head-rest A comprises a block with a suitable 'pad 'qonttopI-,Land in itsglower side the block has a slot 7' to receive the" stationary arm e when the head-rest is tilted baol -v The lower side of the head-rest also has a sockets, which receives `theJl u upper end "oflthe spiral spi-in'g'I, the lower end of said. Spring being supported by the pivoted plate G and taking over a lu t on the upper surface ofsaid'plate. u; It; ist, o vious that, .either one or-two spiral ings: I may be .used ibetween. the pivoted spv .pl'aterGiandpivotedhead-rest'Aixu- 1: f
wgiBy--theiconstructon andi combination o parts ','her'e v,described the head-rest,` :after beving;ad iu*stendetofA a position that-,willsuitithe filgidfngzidual;4 iwrill have .z :ai: yielding L movement backward and forward on ,its pivots 7L;
f f, .Havngithus-described my invention, what I claincn asncwyand desire to secure by'Letters lPatentz, ia-e. ,A ai zu, j, ,e
f ,12.1..,The'combination of a supporting-standardyaheadi-restipivoted to ttilt backandl for- Ward onsaid standard; a pivoted plate below .the lieadfrestl` and with its free yend .movable up downriandlV a: spring. interposed between the said pivoted plate and pivoted head-rest whereby the 'head1-rest after it has been adjusted may have ayielding move- F mentback` andifor'wardl ongitsl pivot.
2. The combination of a supporting-standard having a stationary arm provided wlth a ,Y segment-shaped rack; a head-rest pivoted to rtilt back land forward on said standard; a pivoted plate belowvthe head-rest and with its free end movable'up and down, and carrying "a latch which engages saidrack and a vspring interposedbetween thesaid plate and head- Irest'.l v v 8; The combination of a supportin -standard having astationary arm provide with a segment-shaped rack; a head-rest and. a plate below'thefheadfest but independent of the head-rest and both pivoted on the same pivots; a latch attached to the pivoted plate Vand
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|US2812802 *||Aug 9, 1955||Nov 12, 1957||Nat Seating Co||Adjustable head rest|
|US2973029 *||Jun 16, 1958||Feb 28, 1961||Clifford F Schlosstein||Passenger safety equipment for automobile|
|US4221213 *||Jun 14, 1978||Sep 9, 1980||Gregory Ralph R||Headpiece (heat-support) having adjustable pads|
|US8231177 *||May 7, 2010||Jul 31, 2012||Lear Corporation||Folding head restraint mechanism|
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|US20100219670 *||May 7, 2010||Sep 2, 2010||Lear Corporation||Folding head restraint mechanism|
|US20110089738 *||Jul 19, 2008||Apr 21, 2011||Jen Li-Wen||Headrest Set for Office Chair|