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Publication numberUS1606975 A
Publication typeGrant
Publication date16 Nov 1926
Filing date7 Jun 1926
Priority date7 Jun 1926
Publication numberUS 1606975 A, US 1606975A, US-A-1606975, US1606975 A, US1606975A
InventorsTobey Fred W
Original AssigneeTobey Fred W
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Typewriter desk or cabinet
US 1606975 A
Abstract  available in
Images(2)
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Claims  available in
Description  (OCR text may contain errors)

Nov. 16 1926.

F. W. TOBEY TYPEWRITER DESK 0R CABINET Filed June 7. 1926 2 Sheets-Sheet lNV/z'N TOR A Tyvlmim's Patented Nov. 16, 1926.

FRED, w. TQBEY, or GRAND RAPIDS, MICHIGAN.

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Applicationgfil ed am, 1926. gelim; 114,170;

i The main objects of this invention are: 7 First, to provide an improved typewriter desk or cabinet in which the typewriter is rigidly supported when in" erected position.

' writer cabinet from which the typewriter may be withdrawn and swung to erected position which is easily, operated toqerect or -Secon d,'to provide an improved. typeto 'col'lapsethe structure. I

.Objects pertaining to details and econoimies of'my invention willdefinitely appear from the detailed description to follow. efined and p'oi-nt--' The invention is clearly ed out in the claims. V V v A structure embodying the features of .myinvention is clearly illustrated in' the accompanying drawing forming a part of this application, in which:

i Fig. 1' is a front perspective view offa typewriter desk or cabinetembodying the features of w my invention with the desk closed.

Fig; 2 is -a fragmentary perspectiveview with the top of the desk removed showing the mechanisms in collapsed positioni" F g. 3 1s avertical section on a line corresponding to line 3 3 of Figs. 1, 2'and 5 n 22 which are pivoted to the actuatinglev'ers with the parts in collapsed position;

Fig. 4 is a vertical section with the parts extended or erected position.

Fi .5 is a. fra 'mentar view art-l in g b horizontal section wlth certain of the'parts shown in extended position by dotted lines.

Referring tothe drawing,the desk 1 is provided with a compartment'or;cabinet'2 adapted to receive a typewritingmachine. Within this compartment I mount slideways 3 which support the plate-like slides 4, the details of the mounting of the slides upon the ways, however, not'being shown.

The typewriter bed 5 is mounted upon the slidesby means of a pair of rear supporting posed rearwardly. The, rear links 6 are prolinks 6 and a pair of front-supporting links 7, the links being. pivoted on the slides at. 8 and 9, respectively, and, pivotally connected to the bed. .The front supporting links 7 arebent' or angled, their'angles being disvided with outwardly projecting stops 10 which are adapted toQswing int-o the'notches 11 in the slideswhen the parts are in erected position, thereby limiting the upward swing of the bed. i

The'movement of the slides is limited and controlled by the. 1inks'12 which are pivoted at 13 to coact with stop pins l l'on the gagement with the notches 15 in the links 12 on thefforward movement of the slides The links 12- are supported laterally b {5 01,1 he Slides. I I 1 a links 6,.the pins 14 being brought into en- 7 This arrangement allows the carriage to be brought well forward before the lifting or elevating movement begins, adapting the mechanism'to a. wider carriage machine and permitting it to raise without touching the top of the desk. I Asfthe bed is raised the links engagein the pins of the'le'vers holding the carriage from movingback duringthis elevating movement and at the same-time 'holding the bed in proper position, the car riagehaving a rearward movement as it raised instead of moving in a perfect arc.

The links also hold the carriage from being pushed back into the desk when the bed is in elevated position.

.A pair of actuating levers 17 is pivoted at 18; onthe front endsof the slides and connected by the 'links 19 to the actuating- '2 'springs'20, the springs'being connected at.

their rear ends to the cross piece- 21011 the to the supporting links 7 by means of links.

at-23 and to the supporting links at. 24.1

slides. Theactuatin-g levers are connected connecting the links 1'9 to the actuating levers "are arranged so that the. pivot 23 swings past'the line through thefpivots 18v ajnd24t when the parts are in 'erected'posn tion, thus providing a locking toggle. The.

pivots'18 are extendedto provide stops'cos actin awith the links. 22-limiting the "upward b movement of these parts.

One ofthe actuating levers isprovided with a handpiece 26by means of which'the toggle may be broken. The toggles are operatively connected by an equalizingmeans comprising a pair of equalizer bars 27 which are pivoted at 28 on a cross piece29 extending between the slides.Tl1ese equalizer bars engage the lugs 30 on .thelinks 19 thereby connecting the parts and also supporting the links 19. A link 31 connects v theinnerends of the equalizer bar;

With the'parts thus arranged springs of the required tension to lift the bulk of the load may be provided so that the structure is very easily operated, the movementof the parts being controlled by the hand piece so that there is no material shock. The parts are secured inerected position by the locking toggle described so that the support is very rigid and at the same time may be easily collapsed.

Ihave illustrated'and described my improvements in one embodiment which I have found satisfactory. I have not attempted to illustrate or describe other embodiments or adaptations as it is believed that this disclosure will enable those skilled in the art to embody or adapt my improvements as may be desired. 7

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

1. The combination with a cabinet, of a bed slideways within said cabinet, slides on said ways, a connecting cross piece forsaid slides, pairs of front and rear bed supporting links pivotally mounted on said slides and pivotally connected to said bed, the rear supporting links being provided with stops coacting with the slides to limit the upward movement of the bed and with stop pins, link-like stop members pivotally mounted at their rear ends and notched on their under sides to coact with said stop pins on said rear supporting links when the slides are in their forward position, actuating levers piv otally mounted onthe front ends 'of said slides, actuating springs secured at one end to said slides and connected by links to said actuating lever, coupling links connecting said actuating levers to the front bed sup porting links, the pivots for the actuating links and said coupling links being disposed to providelockingtoggles for the parts when in erected position, the pivots for said actuating links coacting with said coupling links to provide stops for the parts in erected position, one of said actuating levers being provided with a hand piece, and a pair of equalizer bars pivotally mounted on said cross piece of said slide and engaged with saidspring connecting links, the inner ends of said equalizing bars beingprovided with a link connection,

2. The combination with a cabinet, of a bed, slicleways within said cabinet, slides on said actuating levers being provided with a hand piece, and a pair of equalizer bars pivotally mounted on said cross piece of said slide and engaged with said spring connectpins, link-like stop members pivotally mounted at their rear ends and notched on their under side to coact with said stop pins on said rear supporting links when the slides are in their forward position, actuating levers pivotally mounted on the frontends of said slides, actuating springs secured at one end to said slides and connected by links to said actuating lever, coupling links connect-- ing said actuating levers to the front bed supporting links, the pivots for the actuating links and said coupling linksbeing disposed to provide locking toggles for the parts when in erected position, the pivots for said actuating links coacting with said coupling links toprovid-e stops for theparts in erected position, one of the said actuating levers,

being provided with a hand piece, and operating connections for said toggle -mechalllSlIlS;

a'rhe combination with a cabinet, of a bed, slideways within said cabinet, bed supporting slides'on said ways, a connecting cross piece for said slides, pairs of frontand rear bed supporting links pivotally mounted on said slides and pivotally connected to said bed, actuating levers pivotally mounted on the front ends of said slides, actuating springs secured at one end to said slides and connected by links to said actuatinglever, coupling links connecting said actuating levers to the front bed supporting links, the pivots for the actuating links and said coupling links beingdisposed to provide locking toggles for the parts when in erected position, and operating connections for said toggle mechanisms. 1

5. The combination with a cabinet, of a bed, bed supporting slides, bed supporting links pivotally mounted on said slides, the

rear supporting links being provided-with stops coacting with the slides when the bed is iii-erected position, link-like stop members pivoted at their rear ends, the rear 106d supporting links being provided with stop pins coacting with said link-like stop members for limiting the forward movement of the slides, actuating levers pivotally mounted on the slides, actuating springs for said levers, coupling links connecting said actuating levers to the front bed supporting links, the pivots for the actuating linksand coupling links being disposed to provide locking toggles for the parts when in erected position, thepivots. of the actuating links f coacting with said coupling links to provide stops, and an equalizing means. for sald actuating levers, one t said actuating levers being provided with a hand piece. 7

6.The combinatlonwlth a ca blnet, of a 'bed, bed supporting slides, bed supporting linkspivotally mounted on said slides, actuating levers pivotally mounted on the slides, actuating springs for said levers,cou-' pling links connecting said actuating levers toqthe front bed, support1ngl1nks,the p1v- 'ots for the actuating links and coupling links being disposed to provide locking toggles for the parts when in erected pos tion,

and an equalizing means forsaid'actuating' levers, one of said actuating levers being provided with a hand piece.

7. The combination with bed, a bed supporting carriage, bed supporting links pivotally mounted on said car- '--riage, actuating levers pivotally mounted on the carriage, actuating springs for saidlevers, coupling links connecting said actuating levers to the bed supporting links, the pivots for the actuating links and coupllng links being disposedto provide locking toggles for the parts when in erected position,

the pivots of the actuating links coacting.

' with said coupling links to provide stops, and an equalizing means for-said actuatmg for the actuating links and coupling links being disposed to provide 'lockingto'gg les for the partswhen in erected position, and

an equalizing means for said actuating levers, one of said actuating levers being pro vided with a hand piece. 1

bed, a reciprocating carriage, front and rear a cabinet, of a' bed supporting links for saidbed, the rear supporting" links being provided with stop pins, link-like mounted attheir rear ends to coact with said stop pins on said rear supporting links when the carriage isin its forwardpositio n, actuating levers pivotally mounted on said carriage, a'ctuatingvsprings for said levers,

coupling links connecting said actuating levers to the front bed supporting links, the I l v pivots for the actuating links and their coustop members pivotally Y pling links being disposed so that the parts constitute a locking toggle when in erected position, one of said actuating levers being provided w1th a handpiece, and an equaliz- 111g means on said carr age comprising equalizer bars operatively associated with said acv tuating toggle means. i p 7 a 10. The combination w1th a cabinet, of a bed, a reciprocating carriage, front and rear bed supportingilinks for said bed,'actuating levers pivotally mountedon said carriage,

actuating springs .for said levers, coupling links connecting said actuating levers to the" front bed supporting links, the pivots for the actuating links and their coupling links be mg disposed so that the parts constitute a locking toggle when in erected position, one 7 of said actuating levers being provided with a handplece, and an equalizing means on said carriage comprising equalize-r bars 0p, eratively assoc1ated-with said actuat ng tog- 'gle means.

'11. The combination with a cabinet, of a bed, a reciprocating carriage, supporting links for said bed, actuating levers 'plvotally mounted on said carriage, actuating springs for said levers, coupling links connecting said actuating levers to the front bed supporting links, the piv'otsfor the actuating links andtheir coupling links being disposed so that the parts constitute a locking toggle when in erected position, one of said actuating levers being provided with a handpiece.

FRED W. To EY.

In witness whereof Ihave hereunto set my I T hand. 9. The combination with a cabinet, of a

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2738247 *4 Dec 195213 Mar 1956Corry Jamestown Mfg CorpSuspension for extendable typewriter shelf
US2744805 *24 Nov 19528 May 1956Carl Mcmahan WalterLift mechanism for extending a horizontal support
US4616798 *26 Feb 198514 Oct 1986Haworth, Inc.Adjustable support for CRT keyboard
US4625657 *15 May 19842 Dec 1986Weber-Knapp CompanyAdjustable keyboard supporting mechanism
US4706919 *17 Dec 198617 Nov 1987Haworth, Inc.Keyboard support with automatic lowering mechanism
US5257767 *21 Jul 19922 Nov 1993Waterloo Furniture Components, Ltd.Adjustable support mechanism for a keyboard platform
US688376419 Jul 199926 Apr 2005Humanscale Corp.Keyboard support mechanism
US784156920 Mar 200630 Nov 2010Humanscale CorporationKeyboard support mechanism
US784157021 Oct 200830 Nov 2010Humanscale CorporationKeyboard support mechanism
US20060157628 *20 Mar 200620 Jul 2006George MileosKeyboard support mechanism
US20100200712 *7 Apr 201012 Aug 2010Humanscale CorporationKeyboard Support Mechanism
Classifications
U.S. Classification312/28
International ClassificationA47B21/02, A47B21/00
Cooperative ClassificationA47B21/02
European ClassificationA47B21/02