US2785737A

US2785737A - Footrest

Info

Publication number: US2785737A
Application number: US280930A
Authority: US
Inventors: Norman E Lauterbach
Original assignee: Ritter Co Inc
Current assignee: Ritter Co Inc
Priority date: 1952-04-07
Filing date: 1952-04-07
Publication date: 1957-03-19
Anticipated expiration: 1974-03-19

Description

March 19, 1957 N. E. LAUTERBACH 2,785,737

FOOTREST Filed April 7, 1952 6 Sheets-Sheet l 1N1 'EXTOR. NORMAN E. LAUTERBAGH HIS A 7' TOR/YE Y FOOTREST 6 Sheets-Sheet 2 Filed April 7. 1952 INVENTOR.

NORMA/V E LAUTERBACH HIS 4 T7 ORNE Y 6 Sheets-Sheet 3 INVENTOR. NOR/JANE. LAUTERBAGH I-I/S ATTORNEY FOOTREST N. E. LAUTERBACH March 19, 1957 Filed April 7, 1952 March 19, 1957 N. E. LAUTERBACH 2,785,737

FOOTREST Filed April 7, 1952 e Sheets-Sheet 4 March 19 1957 N. E. LAUTERB'ACH FOOTREST 6 Sheets-Sheet 5 Filed April 7, 1952 INVENTOR. NORMAN E. LAUTERBACH dwom ew HIS ATTORNEY March 19, 1957 N. E. LAUTERBACH FOOTREST 6 Sheets-Sheet 6 Filed April 7,- 1952 I I I INVENTOR. NORMA/V E LAUTERBAGH HIS ATTORNEY United States Patent FOOTREST Norman E. Lauterbach, .NewarkQN. Y., assignor to 'Ritter Gompany, Inn, Rochester, N. Y., a corporation of "Delaware Application April 1, .1952, Serial No. 1805930 16 Claims. (Cl. 155-172) This. .invention relates to foot rest-s, and more particularly to foot tests for dental, surgical and chiropody nhairs, and the like, one object of the invention being to provide .an improved foot rest having a more simple, practical and economical construction.

Another object is to provide a foot rest that may be easilyadjusted both vertically and horizontally relative to the seat-of thechair.

Another object is to provide a foot rest of the above character in which the cushion or pad remains at constant inclination during said adjusting movements; morespecifically, a foot rest in which the-cushion or pad may he placed ina horizontalposition or a desired position of inclination, and regardless of how far it is raised above the foot platform or swung toward or' from the chair seat, the cushion will remain at a previously adjusted inclination.

Another object is. .to provide a foot rest having the above advantages which may be :readily locked in desired position .of adjustment by a single locking device.

Another object is to provide a foot rest in which the cushion may .be readily moved to :and from a position :of use.

Another object ,is to provide a foot rest in which the cushion .or pad may be readily tilted to desired inclination independently .of its supporting mechanism in any adjusted position thereof.

A further object is to provide a foot rest having :the above advantages which is provided with means for utilizingt-he used port-ion .of the sanitary protective coveras a disposable chip-tray.

Still a further object is to provide a foot rest having the above advantages requiring .a minimum of parts which may be economically and readily manufactured and assembled.

To these and other :ends the invention resides in certain improvements and combinations of parts, all as will be hereinafter more fully described, the novei features being pointed out inthe claims at the end of the specification.

In the drawings:

Fig. .1 is a side elevation of a chiropodist s chair having a foot rest embodying the present invention' mounted thereon;

Fig. 2 is an enlarged side elevation of the foot 'restin its uppermost position showing the cushion in horizontal position;

Fig. 3 is a front elevation of the foot rest in its uppermost position showing the cushion in horizontal position;

Fig. 4 is an enlarged side elevation of the foot rest showing the cushion in different positions of inclination;

Fig. 5 is a sectional view substantially along line 5-5 in Fig. 2;

Fig. 6 is a sectional view substantially :alongline in Fig. 2;

, 2,785,737 Patented Mai. 19,1957

.Fig. 7 is a sectional view substantially along line 7-1 in. Fig. 2;

.Fig. 8 is a sectional view substantially along in Fig. 2;

Fig. '9 is a side elevation substantially along line 99 in Fig. 3 showing the bails in position for forming a disposable chip-tray;

:Fig. 1 0 is a sectional elevation of the upper portion iof the foot rest 'alongthe line 10-10 in Fig. 2;

.Fig. 11 is a sectional elevation substantially along line 11-11 in Fig. 1 0;

.Fig. 12 is a perspective view showing the bottom closureplate ofthe foot rest cushion;

Fig. 133s a front elevation showing the cushion in a position .of non-use, and

Fig. 14 isiarsimilar view showing the foot rest cushion in a second position of non-use.

The preferred embodiment :of theinvention herein disclosed, by way-of illustration, is shown as applied to a chiropodists chair shown generally at 23 (Fig. 1). As shown in .Fig. .1, the .chair comprises a circular base 25 supporting an electrical motor 27 and a housing 29 for hydraulic mechanism for raising and lowering a chair supporting column .31 which is mounted forrotation with the housing :on base 25, as well understood in the art. A seatiframe .33 is mounted. on the upper end of column for vertical movement therewith by suitable means allowing ittojhave a controlled tilting movement relative to column .31. An elongated lever or pedal '35 extends forwardly from the chair base for actuating the seat frame tilting mechanism and a second lever or pedal .37 emends rearwardly for similarly controlling the tilting mechanism- The seat frame 33 has a cushion 39 mounted thereon and a pair of arm rests 41 pivotally mounted on opposite sides thereof adjacent tthe center of the. :seat frame. Chair 23 is provided with a back rest 43 mounted at the lower endthereof on a pair of brackets 45 extending upwardly from the seat frame and connectedto a third bracket 47 on the seat frame by a slide mechanism 49. as well understood in the art. A leg rest frame '51; is mounted at one end thereof on seat frame 33 and has a foot platform or step 53 fixed thereto adjacent the opposite end thereof. 7

. The; present foot .restmechanism shown generally at 55 (Fig. :1) is mounted; adjacent the forward or free end of foot platform .53 for pivotal movement relative thereto for raising and lowering the support means or foot rest cushion means shown generally at 57 (Figs. 2, 3 and 4) and swinging the same toward and from seat 39, by means hereafter more fully described, for moving the foot rest to the desired position of support for patients of. idifierent {height and physique.

The means for supporting the foot rest cushion above platform '53 preferably comprises a parallel motion supportingmeansor mechanism shown generally at 59- comprising essentially 'a hinged or jointed four-bar linkage pivotally connected at one end thereof to platform 53 and at the other end thereof to cushion means 57'. The linkage comprises a lower forward member or bar 61 which as shown in Fig. 5', is preferably U-shaped in cross section and whi'clt'is-fixed" at the lower end thereof to a trunnion 63 (Fig; 5 bywelding 64, orbyotherknown and suitable means. 'Trunnion 63 is supported in a journa'l of bearingbracket as (Fig. 5) mounted on platform 53..and is formed with a groove 67 which is engaged; by a retaining screw 69' (Fig. 3) for holding said trunnion and bar 61 in position on the platform. A lower rear link or bar 71 .(Figs. -4 and .SI), similarlv U-shaped in cross section, pivotally mounted :on'a stud or shaft 13 (Fig. 5):, which is th readetlly' seemed "to" el -depending" bracket 75 (Fig. 5) mounted on platform 53. Link or ice member 71 is releasably held in place on stud 73 by a snap ring 77 (Fig. and is connected at the upper end a transversely extending bolt 89 which is fixed at the head end thereof to a washer or collar 91 and which about trunnion 99 so am remain at constant inclination.

has a threaded handle 93 on the opposite end thereof engaging a similar collar 95 for pressinglinks 61 and .87 and

transverse spacer bars

81 and 83 into tight engagement with one another for clamping the same together and preventing relative movement therebetween. In order to increase the frictional locking surface between said links, a series of spacing washers 96 are inserted, as shown in Fig. 6. Washers 96 and

collars

91 and 95 are thinner adjacent the center portions thereof so as to insure uniform frictional engagement along the edges thereof. Washers 96 are held against rotation relative to link 61 by a transversely extending pin 97 (Figs. 2, 3 and 4). Link 61 is provided with a stud 98 (Fig. 6) for engagement with the desired one of a series ofspaced openings or holes 100 (Figs. 2, 4 and 6) formed in collar 91' for preventing rotation of collar 91 and attached bolt 89 relative to link 61, but at the same time allowing said collar and bolt to be so positioned on link 61 that when handle 93 is fully tightened, it will be in a convenient position of angular rotation for the operator. Thus, it is evident that as handle 93 is rotated, tightening bolt 89,

links

61 and 87 and

transverse links

81 and 83 are brought into frictional engagement with one another and with spacing washers 96 and

external collars

91 and 95 thereby holding all of said members in fixed position and preventing any movement of the links or bars relative to one another or of the supporting mechanism relative to foot platform 53. I

Link, or member 87 has a transverse supporting member or trunnion 99 (Fig. 8) fixed thereto adjacent the upper end thereof by welding 101 (Fig. 8) or other known and suitable means. Link or member 79 has fixed thereto adjacent the upper end thereof a transversely extending stud or rod 103 which 'is reduced in diameter adjacent the outer end thereof as shown in Fig. Sand has a spring actuated sleeve or plunger 105 (Fig. 8) mounted thereon for a purpose to be hereafter described. As shown in Fig. 8, sleeve 105 is bored to loosely. fit the reduced portion of stud 103 andis counterbored from the outer end thereof part way therethrough to form a chamber 107 for the reception of a coil spring 109. A cap screw 111 closes the outer end of chamber 107 and holds spring 109 in place within said chamber, thereby yieldably holding plunger 105 on stud 103.

Links 79 and'87 are connected adjacent the upper end thereof by a transversely extending member or plate 113 (Figs. 2, 4, 8, l0 and 14) which is pivotally mounted on trunnion 99 adjacent the outer reduced portion thereof and which is formed adjacent the opposite end thereof with a plurality of holes 115 (Figs. 2 and 4) formed in an arcuate path and connected by a curved slot 117 (Figs. 2 and 4). Plunger 105 is removed from stud 103 and plate or tilting segment 113 placed in position onsaid stud and on trunnion 99, as shown in Fig. 8, and plunger 105 is thereafter replaced on stud 103. The inner end of plunger 105 is adapted to fit within holes 115 so that said plate may be releasably fixed tolink 79 in one of five positions, depending upon which one'of said holes is engaged by plunger 105; Plate 113 completes the parallel motion linkage, and it is evidentthat as the linkage is swung about platform 53, plate 113 will pivot Cushion means 57 preferably comprises a hollow frame 119 (Fig. 10) of wood or similar material having the top thereof closed by a panel of plywood 121 (Fig. 10) or other similar material upon which is mounted a support, preferably in the form of an upholstered pad or cushion member 123 (Figs. 10 and 11) covered with leather or plastic or other suitable and known material. An elongated plate or arm 125 is mounted on the underside of panel 121 as shown in Fig. .10. The right hand portion of arm 125 is bent downwardly and somewhat to the left as shown in Fig. 10 forming a gooseneck shape. Supporting arm 125 is pivotally mounted at the right end thereof on a bracket or hinge member 127 V (Fig. 8) which in turnis loosely mounted on trunnion 99 adjacent plate 113 as shown in Fig. 8. Bracket 127 is spaced from plate 113 by a suitable washer 129 (Fig.

8) and is held in position on the smaller end of trunnion 99 by a collar or washer 131 (Fig. 8) and a screw 133 (Fig. 8) threadedly engaging the end of said trunnion. When the cushion is in its normal position of 'use, as shown in Figs. 1-4 and 10, arm 125 rests on'the fiat upper surface 135 (Figs. 2 and. 4) of plate 113 and a bracket or hearing member137 (Fig. 10) fastened thereto which is formed with a depending portion 139 (Figs. 10 and 13) having a U-shaped seat formed therein, engages the left hand end of trunnion 99 as shown in Fig. 10. Thus, when the supporting linkage is moved to change the elevation or horizontal position of the foot rest, plate 113 is made to rotate about trunnion 99 thereby keeping its upper surface 135 at constant inclination, and as arm 125 rests on plate surface 135 said arm and cushion 123 are similarly held at constant inclination.

In addition to providing that the foot rest pad 123 is maintained at constant inclination as it is moved to the desired position, the above mechanism also allows for easy adjustment of the inclination of the pad relative to foot platform 53. That is, it is only necessary to pull outwardly on plunger 105, and by means of a handle 141 (Figs. 2 and 4) which is fastened to arm 125, swing said arm, cushion 123 and plate 113 about trunnion 99 until the cushion is at the desired inclination, at which point plunger is released for engagement with the nearest one of holes 115, thereby securely holding plate 113, and therefore, cushion 123 in the desired'position.

Plate 113 is provided adjacent the lower edge thereof with-a bumper plate 143 (Fig. 4) against which the curved portion of arm strikes when the cushion is swung in a clockwise direction from its position of use shown in Fig. 10 to a position of non-use shown in Fig. 13. During this movement, arm 125 has pivoted about bracket 127. As bracket 127 in turn may pivot about trimnion 99, cushion 57 may be swung to-a second posi-' tion of non-use extending substantially vertically adjacent to the supporting linkage. Thissecond movement is accomplished by rotating bracket 127 through 180. and then swinging arm 125, relative thereto to its position shown in Fig. 14. A pin 145 (Fig. 10) prevents collar 131 from moving relative to trunnion 99 and prevents screw 133 from being loosened by the above pivotal movement of bracket 127.

Foot rest 57 is also preferably provided with means for holding a supply of sanitary'material or paper.147 (Fig. 11) in roll or folded form, and a series of rolls of adhesive tape 149 (Fig. 11) for ready access thereto by the operator. For this purpose, frame 119 is' provided with a bottom closure plate or pan 151 (Fig. 12) having a pair of upstanding brackets 153 and spring fingers 155. Brackets 153 are each formed with a hole 157 adapted to'receive a wooden rod or dowel 159 (Fig. 11) upon which rolls of tape 149 are mounted. As shown in Fig. 11, pan 151 is hingedly mounted to opposite sides of frame 119 by wood screws 161 adjacent the rearcorners thereof and is connected to arm 125 by a pair of coil springs 163 for releasably holding the pan in contact with the underside of frame 119 as shown in solid lines in Figs. and 11. Pan 151 frictionally engages paper 147 asit passes beneath the edge of frame 119, as shown in Fig. 11, thereby tensioning the paper and preventing wrinkling and inadvertent or excessive unwinding of the same. A cutting knife 165 (Figs. 2, 3 and'4) is slidably mounted adjacent the left hand side of frame 119 for cutting the adhesive tape to the desired length.

Roll 147 is held in place within cushion frame 119 by pan 151' and, as shown in Fig. 11, the free edge thereof is threaded downwardly and outwardly between pan 151 and frame 119, upwardly under a U-shaped member or bail 167, over the upper surface of pad 123 and under a second U-shaped member or bail 169. Bail 169 is pivotally mounted on the cushion frame by a pin 171 (Fig. 11) and hail 167 is pivotally mounted on bail 169 by a rivet or pin 173 (Fig. 11) so that said bails can be swung upwardly to allow paper 147 to be threaded thereunder. In addition, bail 167 may be swung from its position shown in Fig. 11 through 180 to its position shown in Fig. 9 and the free end of paper 147 may be continued downwardly beneath bail 169 and brought out under the end of bail 167 where it is held by forcing the same over spaced pegs or spurs 175 as shown in Fig. 9. Bail 167 is formed with a latching hole 177 (Fig. 9) which snaps over the head of a rivet or pin 179 (Figs. 2, 4 and 11) on bail 169 for releasably locking bail 167 in its extended position shown in Fig. 9. Thus, the operator may use the previously exposed portion of sanitary paper 147 to form a disposable chip-tray for the reception of toenail clippings, cotton and the like. However, if the operator does not desire such a tray, bail 167 may be swung to its normal position shown in Figs. 2, 4 and 11 in which position bail 167 engages and rests upon the upper surface of arm 125 and, in conjunction with the frictional tensioning of paper 147 by pan 151 and frame 119, holds the paper in position on pad 123. If desired, bail 167 may be swung in a counterclockwise direction from its position shown in Fig. 9 to a depending position of non-use. This position of non-use allows the operator to dispose of the chip-tray and drop bail 167 out of the way for ready access to the rolls of adhesive tape, without disturbing the patient whose feet may be in the desired position for treatment on pad 123.

Thus, it will be seen that the above invention provides an improved foot rest structure in which the foot rest pad when set at any desired inclination may be thereafter raised and lowered or moved toward or from the seat of the chair to accommodate patients of difierent height, without, however, changing the angle of inclination of the foot rest pad. When the foot rest pad is in its desired position, it may be readily locked in said position by merely tightening a single locking handle 93 which, in clamping the parallel motion linkage members together, also locks said members against rotation relative to the foot platform of the chair and relative to the foot rest pad. The weight of the pad and the supporting linkage is counterbalanced by means of a coil spring 181 (Figs. 4 and 7) which is connected at one end thereof to a pin 183 (Fig. 7) extending transversely of link 87, and at the other end thereof to stud 103. Thus, the operator may with a minimum of exertion quickly and easily move the foot rest to any of a great number of positions to accommodate the patient.

In addition, the above foot rest pad may be independently tilted to any of its positions shown in Fig. 4 without affecting the supporting linkage and without loosening locking handle 93. Pan 151 and foot rest frame 119 provide a substantially dirt and dust proof receptacle for the roll of sanitary covering paper 147 and similarly provide a handy receptacle for the rolls of adhesive tape 149. To replace the rolls of adhesive tape, it is only necessary to move rod 159 longitudinally against one of the spring fingers 155 until the opposite end of the rod has cleared 3 V opening 157 in the opposite bracket 153. T he new rolls of tape are inserted on saidv rod and the above procedure reversed, returning the rod to its normal position as shown in Fig. 11. Knife which is slidable between a pair of spaced bars (Figs. 3 and 4) provides a safe and easily operated means for cutting the tape to the desired lengths. In addition, bail 167 may be swung forwardly to its position shown in Fig; 9 for forming with sanitary paper 147 a disposable chip-tray.

If the operator does not desire to-use the foot rest, it may be readily swung to either of its positions of non-use shown in Figs. 13 and 14, or if desired, the entire foot rest assembly may be easily removed from foot platform 53 by merely loosening retaining screw 69 and removing snap ring 77, thereby allowing trunnion 63 to be pulled longitudinally out of bearing 65 and at the same time allowinglink 71 to move out of engagement with pin 73.

It will thus be seen that the invention accomplishes its objects and while it has been herein disclosed by reference to the details of a preferred embodiment, it is to be understood that such disclosure is intended in an illustrative, rather than a limiting sense, as it is contemplated that various modifications in the construction and arrangement of the parts will readily occur to those skilled in the art, Within the spirit of the invention and the scope of the appended claims.

I claim:

1. A foot rest mechanism for a chair having a seat frame, a seat on said frame and a foot platform fixed to said frame, said foot rest comprising support means, parallel motion supporting members connecting said support means and foot platform, said members being pivotally connected at one end thereof with said foot platform, a transverse supporting member fixed to one of said parallel motion members adjacent the opposite end thereof, means for mounting said support means on said transverse supporting member for pivotal movement relative thereto, and means connected with the opposite end of the other of said parallel motion members and engaging said transverse supporting member and support means for moving said support means about said transverse sup.- porting member for maintaining said support means at predetermined inclination as it is raised and lowered above said platform and moved toward and from said seat, and means for locking said supporting means relative to said platform for holding said support means in adjusted position.

2. A foot rest for a chair having a seat frame, a seat on said frame and a foot platform fixed to said frame, said foot rest comprising support means, an arm fixed to said support means, parallel motion supporting members connecting said support means and foot platform, said members being pivotally connected at one end thereof to said foot platform, a transverse supporting member fixed to one of said members adjacent the opposite end thereof, said arm being pivotally mounted on said transverse supporting member for swinging movement relative thereto, plate means releasably connected with the free end of the other of said parallel motion members and engaging said transverse supporting member and said arm fixed to said support means for moving said support means about said transverse supporting member for maintaining said support means in adjusted inclination as it is raised and lowered above said platform and moved toward and from said seat, means for releasing said plate means for pivotal movement about said transverse supporting member relative to said supporting members for moving said arm and support means about said transverse supporting member to desired position of inclination independent of the movement of said supporting means, and means for locking said supporting means relative to said platform for holding said support means in adjusted position.

3. A foot rest as specified in claim '2 in which the means for releasing said plate means for pivotal movement about said transverse supporting member relative to said parallel motion supporting members comprises a spring actuatedplunger on said other of said supporting members releasably connecting said plate means to said other supporting member.

4. A foot rest for a chair having a seat frame, a seat on said frame and a foot platform fixed to said frame, said foot rest comprising support means, parallel motion linkage connecting said support means and foot platform for supporting said support means in spaced relationship with said platform and maintaining said support means in adjusted inclination as it is raised and lowered above said platform and moved toward and from said seat, said linkage comprisingupper and lower portions hingedly connected for pivotal movement relative one to the other, spring means connectedto the opposite members of one of said supporting linkage portions for counterbalancing the weight of the same and said support means, and a locking means for clamping said portions together for preventing movement thereof relative one to the other and to said platform for holding said support means in adjusted position.

5. A foot rest for 'a chair having a seat frame, a seat mounted on said frame and a foot platform fixed to said frame, said footrest comprising support means, a parallel motion linkage pivotally mounted at. one end thereof on said platform, a second parallel motion linkage connected at one end thereof to said first linkage and pivotally connected at the opposite end thereof to said support means for supporting the same in spaced relationship with said platform and maintaining said support means at predetermined inclination as it is'raised and lowered above said platform and moved toward and from said seat, said second linkage having one of the members thereof movable independently of and relative to the remaining members thereof for moving said support means relative to said remaining members to desired inclination, and means for clamping said linkages together for locking the same against movement relative to said platform for holding said support means in adjusted position.

6. A foot rest for a chair having a seat frame, a seat mounted on said frame and a foot platform fixed to said frame, said foot rest comprising support means, an arm fixed to said support means, a pair of supporting links pivotally connected at one end thereof to said platform, a spacer member pivotally connected at the opposite ends thereof to the opposite ends of said links for forming a parallel motion linkage, a second pair of supporting links pivotally connected at one end thereof to the opposite ends of said spacer, a transverse supporting member fixed to one of said second links adjacent the opposite end thereof, said arm being pivotally mounted on said transverse supporting member for swinging movement relative thereto, plate means pivotally connected to the other one of said second supporting links adjacent the opposite end thereof and engaging said transverse supporting member for forming with said second links a second parallel motion linkage and engaging said arm and moving the same relative to said transverse supporting member as said foot rest is raised and lowered above said platform and moved toward and from said seat for maintaining said arm and said support means at constant inclination, and means for clamping said spacer member to one of said first links and the respective one of said second links for locking all of said links against movement relative to one another and to said platform for releasably securing said support means in adjusted position.

7. A foot rest as specified in claim 6 in which said. other one of said second supporting links is providedwith means for releasing said plate'means for pivotal movement relative to said transverse supporting member for swingingsaid support means about said transverse supporting member to desired inclination independent of the movement of said supporting linkages while saidv linkages are clamped together.

. 8. A foot rest as specifiel in claim 7 in which the means for releasing said plate means for pivotal movement relative to said transversesupportingmember comprises a spring actuated plunger mounted on said other one of said supporting links and releasably engaging said plate means in a plurality of predetermined positions.

9. A foot rest for a chair having a seat frame, a seat mounted on said frame and a foot platform fixed to said frame, said foot rest comprising support means having a pad, means for adjustably mounting said support means on said platform, dispensing means for holding a supply of sanitary material for covering said pad, and

means mounted on said support means and having one position for holding a portion of said material in position on said pad for covering the same and a second position for supporting in spaced relationship with said pad a portion of said material for forming therewith a disposable chip-tray.

, 10. A foot rest for a chair having a seat frame, a seat mounted on said frame and a foot platform fixed to said frame, said foot rest comprisingsupport means .comprising a pad, means for adjustably mounting said support means on said platform, dispensing means for hold-. ing a supply of sanitary material for covering said pad, and means mounted on said support .means and having one position for supporting in spaced relationship with said pad a portion of said material for forming therewith a disposable chip-tray, said last means being move able to a position of non-use substantially coincident with said support means.

11. A foot rest for a chair having a seat frame, a seat mounted on said frame and a foot platform fixed to said frame, said foot rest comprising support means having a pad, means for adjustably mounting said support means on said platform, dispensing meansfor holding a supply of sanitary material for covering said pad, and means mounted on said support means and having one position for supporting in spaced relationship with said pad a portion ofsaid material for forming therewith'a disposable chip-tray, said last means being movable to a position of non-use depending from said support means.

12. A foot rest for a chair having a seat frame, a seat mounted on said frame and a foot platform fixed to said frame, said foot rest comprising support means having a pad, means for adjustably mounting said support means on said platform, means for holding a'supply of'sanita'ry material for covering said pad, and a, member pivotally mounted on said support means for supporting in spaced relationship with said pad a portion of said material for forming therewith a disposable chip-tray, said member being movable to a position of non-use depending from said support means.

13. A foot rest for a chair having a seat frame, a seat mounted on said frame and a foot platform fixed to said frame, said foot rest comprising support means having a pad, means for adjustably mounting said support means on said platform, means for holding a supply of sanitary'material for covering said pad, and a U-shaped bail movably mounted on said support means for supporting in spaced relationship with said pad a portion of said material for forming therewitha disposable chip: tray, said bail being movable to a position of non-use depending from said support means. 7

, 14. A foot rest for a chair having a seat frame, a seat mountedon said frame and a foot platform fixed to [said frame, said foot rest comprising support meanshaving a pad, means for adjustably mountingv said support means on said'platform, means for holding asupply of sanitary material for covering said'pad, a membermovably mounted onsaid support means for holdingone portion of said material in'position on said pad, and a second member on said support means movable to one position for holding said material in covering position on said pad, said second member being movable to a second position for supporting in spaced relationship with said support means a portion of said material for forming therewith a disposable chip-tray.

15. A foot rest for a chair having a seat frame, a seat mounted on said frame and a foot platform fixed to said frame, said foot rest comprising support means having a pad, means for adjustably mounting said support means on said platform, means for holding a supply of sanitary material for covering said pad, a U-shaped bail mounted on said support means for holding one portion of said material in position on said pad, and a second U-shaped bail on said support means movable to one position for supporting in spaced relationship with said support means and said first bail a portion of said material for forming therewith a disposable chip-tray, said second bail being movable to a position of non-use depending from said support means.

16. A foot rest for a chair having a seat irame, a seat mounted on said frame and a foot platform fixed to said frame, said foot rest comprising support having a pad, means for adjustably mounting said support means on said platform, means for holding a supply of sanitary material for covering said pad, a U-shaped bail mounted on said support means for holding one portion of said material in position on said pad, and a second U-shaped bail on said support means movable to one position for supporting in spaced relationship with said first bail and pad a portion of said material for forming therewith a disposable chip-tray, said second bail being movable to a position of non-use substantially coincident with said support means.

References Cited in the file of'this patent UNITED STATES PATENTS 553,572 Statford Ian. 28, 1896 1,125,155 Nunn Jan. 19, 1915 1,529,138 Kuentzel Mar. 10, 1925 1,810,134 Emmert June 16, 1931 2,131,693 Smith Sept. 27, 1938 2,151,156 Saunders et a1. Mar. 21, 1939 2,213,780 Chambers Sept. 3, 1940 2,474,265 Lorenz June 28, 1949 2,491,793 Anderson Dec. 20, 1949 2,519,771 Lacore Aug. 22, 1950 FOREIGN PATENTS 38,240 Germany May 9, 1866 273,182 Great Britain June 30, 1927