US2150844A

US2150844A - Adjustable resilient seat

Info

Publication number: US2150844A
Application number: US160163A
Authority: US
Inventors: Albert F Raders
Original assignee: Individual
Current assignee: Individual
Priority date: 1937-08-20
Filing date: 1937-08-20
Publication date: 1939-03-14
Anticipated expiration: 1956-03-14

Description

March 14, 1939. A. FRADERS 2,150,844

ADJUSTABLE RPS [LTENI SEAT Fi-led Aug. 20, 1937 w 5 Sheets-Sheet 1 B I jizjuz Inventor J. ffladerd M an.

Afiorneys March 14, 1939. A. F. RA'DRs ADJUSTABLE RESIIJIENT SEAT Filed Aug. 20, 1937 5 Sheets-Sheet V In venior i ffladaz .4Horneys March 14, 1939. A F, RADERS 2,150,844

ADJUSTABLE RESILIENT SEAT Aiiorneys March 14, 1939. A F, RADERS ADJUSTABLE RES ILIENT SEAT Filed Aug! 20, 1937 5 Sheets-Sheet 4 Inventor .4 ffprneys March 14, 1939. A RADERS 2,150,844

ADJUSTABLE RESILIENT SEAT Filed Aug. 20, 1937 5 Sheets-Sheet 5 A iiomeys Patented Mar. 14, 1939 UNITED STATES PATENT OFFICE 1 Claim.

This invention relates broadly to seats and more particularly to an improved seat or stool designed and intended particularly for use by engineers and firemen in cabs of railroad loco- 6 motives.

An object of the present invention is to provide a seat of the character above mentioned that is both resilient and adjustable Vertically to the desired height.

The invention together with its objects and advantages will be best understood from a study of the following description taken in connection with the accompanying drawings wherein:

Figure 1 is a side elevational View of the seat,

a raised position of the seat being indicated by broken lines.

Figure 2 is a rear elevational view of the seat.

Figure 3 is a sectional view through the seat showing the adjustable support therefor.

Figure 4 is a perspective View of a foot rest.

Figure 5 is a perspective view of a cylinder or tube hereinafter more fully referred to.

Figure 6 is a top plan view of the seat proper with the seat cushion removed.

Figure 7 is a bottom plan view of the seat cushion.

Figure 8 is a perspective view of a floor plate, and

Figure 9 is a perspective view of the vertically shiftable section of the seat.

Referring to the drawings by reference numerals it will be seen that in the preferred embodiment thereof the seat comprises a pair of front and rear floor plates 5 respectively provided at their respective opposite ends with apertures 6 for the reception of screws or similar fastening devices through the medium of which the plates 5 are secured to the floor of a locomotive cab.

Each of the plates 5 have rising therefrom, and

inwardly from the ends thereof, standards 1.

Supported by the standards 1 for vertical sliding movement is a skeleton box-like frame structure indicated generally by the reference numeral 8.

As shown in Figure 9 the frame structure 8 comprises a plate 9 from the corners of which rise tubular members II) that have a sliding fit with the standards or posts I. At their upper ends the tubular members I!) have welded or otherwise secured thereto corner portions of a frame ll.

At the front and rear thereof plate 9 is provided with depending flanges l2 complemental to lugs or flanges l3 that extend upwardly from the floor plates 5.

For raising and lowering the frame structure 8, and for securing the latter at the desired elevation, there is provided an adjustable support consisting of coacting pairs of toggle links 14 and I 5.

The links 14 are pivoted to the lugs or flanges 5 [2 as at l6 While the links I5 are pivoted to the lugs or flanges I3 as at H.

The links I4 and 15 are pivotally connected by pivots I8 and 19.

The pivots l9 are provided on the respective opposite ends of a cross bar 20 while connected to the pivots 18 are the angular ends of a cross bar 2|.

An adjusting screw 22 has a threaded end 23 threadedly engaged with an intermediate portion 15 of the bar 20 and asecond end journaled in a suitable opening provided therefor intermediate the ends of the bar 2|. Screw 22 is secured against longitudinal movement through the medium of collars 24 pro-vided thereon at opposite sides of the bar 2 I.

On the collar-equipped end thereof screw 22 is also provided with a ratchet wheel 25 and a lever 26 has one end connected with the screw 22 to rotate about the latter as an axis. 25

Lever 26 is equipped with a detent structure 21 cooperable with the ratchet 25 so that obviously by oscillating the lever 26 movement of the lever through the medium of the detent 27 and rack wheel 25 will be transmitted to the screw 22 30 for turning the latter to cause the bar 2| to feed longitudinally of the threaded end of the screw for raising or lowering, as the case may be, the frame structure 8 and consequently the seat proper carried thereby. The seat proper indicated generally by the reference numeral 28 consists of a plurality, in the present instance, three laterally spaced straps 29 which at one end are upturned as at 30 to provide back rest extensions for supporting an upholstered back rest Si. 40

The straps 29 are secured in. laterally spaced relation through the medium of front and rear cross straps or bars 32.

The bars 32 are secured to the straps 29 through the medium of the upper ends of rods 45 33 that extend through apertures in the members 29 and cross bars 32 that have threaded thereon upper and

lower nuts

34, 35.

A cushion for the bottom of the seat is indicated by the reference numeral 36, and on the 50 underside thereof the cushion 36 is provided with angular elements 31 as shown in Figure '7 that engage the nuts 34 associated with the endmost rods 33 in a manner to secure the cushion 36 against lateral displacement. 55

The rods 33 work through openings 38 provided therefor in the front and rear ends of the frame element II and are received in the upper ends of tubes or cylinders 39. Cylinders 39 are secured in vertical position on the plate 9 at the front and rear edges of the plate through the medium of bolts and nut means 40.

Adjacent the lower ends thereof the rods 33 are provided with lateral pins 4| that are accommodated in longitudinal slots 42 provided in the tubes or cylinders 39.

Washers 43 have arsliding fit on the tubes or cylinders 39 and are engaged by the pins 4| as clearly shown in Figure 2.

Disposed about the tubes or cylinders 39 are coil springs 44 that at their lower ends impinge against the plates 9 and at their upper ends impinge against the washers 43.

I It will thus be seen that a resilient support for the seat 28, in addition to the adjustable support for the seat, is provided.

Also in accordance with the present invention there is provided a footrest 45 having at the opposite ends thereof rearwardly extending arms 46. At the free ends thereof arms 46 are pivoted as at 59 to eyes or sleeves 41 sleeved on the front posts or standards 1 whereby the rest 45 is mounted for vertical adjustment; .Sleeves'41 are provided with stops 5| to support the foot rest in horizontal position.

At the sleeve-equipped ends thereof arms 46 are provided with laterally extending lugs 48. Lugs 48 are equipped with threaded apertures. to accommodate adjusting screws 49, the lower ends of which bear on the front or forwardmost floor plate 5 at the ends of the latter. It will thus be seen that to raise or lower the foot rest 45 as found desirable screws 49 are turned causing the lugs 48 to feed vertically thereon and in the proper direction to raise or lower the foot rest 45.

When not used foot rest 45 may be swung upwardly to a substantially vertical out-of-the-way position.

From the above it will be seen that I have provided an adjustable resilient seat which may be used wherever a seat of such a character is desired, and which will especially be found desirable for use in a locomotive cab.

It is thought that a clear understanding of the construction, utility and advantages of an invention of this character will be had without a more detailed description.

Having thus described the invention what is claimed as new is:

In a seat of the class described, a frame including a lower plate, arectangular-shaped upper member, uprights connecting the plate and member together, said plate and rectangular-shaped member having a row of spaced holes adjacent each end thereof, the holes in the plate being aligned with the holes in the member, tubular members, bolts connected at the lower ends of the tubular members and passing through the holes in the plate, nuts engaging said bolts for holding the same in the holes of the plate, two rows of vertically arranged rods passing through the holes in the rectangular member and into the tubular members, a strap connecting the upper end of each rodgof one row with a corresponding rod of the other row, said straps being connected with the upper ends of the rods, each tubular member having a longitudinally extending slot therein, a pin carried by each rod and engaging the slot therein, a washer slidably arranged on each tubular member located under the pin and. a coil spring surrounding each tubular member and having one end bearing against the bottom plate and its other end engaging th-e washer and a strap connecting the upper ends of each row of rods together.

ALBERT F. RADERS.