US1530480A - Foot rest - Google Patents

Description

March 24.1925. 1,530,480

, ,7 F. E. CASE FOOT nss'r J Filed Aug. 50, 1922- 2 Sheets-Sheet 1 March 24, 1925.

F. E. CASE FOOT REST Fil'e d Aug. 30, 1922 2 Shasta-Shoot; 2

[Pall/Z Z: 6666 Patented Mar. 24, 1925.

UNITED s- Ares;

Par I rnanxnacasn, or CANTON, OHIO, AssIeNoe'ro nnfnaawmnconmnr; or" CAN-TON, OHIO, A CORPORATION or'onioroo 'r ian's'r:

Ta'aZZMhom it may concern":- Y

Be it known that I, -,FRANK E. lGAsn; a citizen of the United statesyresidingXz-it Can-ton, in the county of Starlf 'andstate of @hio, have invented certain new and 3 useful Improvements in Foot lists, of which thefdllowing is a specification.

The inventionrelates 'to"' f'o ot rests for dental ch'airs' and'the like; comprising-Ia normally hem-Omar main section and a forward extensionsection hingedto the main section so asto be swung rinto' the: same plane therewith or to be rotated upward at an inclination thereto; and-thie objectof the improv'ement is to provide means" for readily securing and sustaining the-extended section"in= upwardly inclin'ed position; and for readily releasing the same fordropping the extension downward into alignment with 'the nain section."

The invention is illustrated in the accompanying drawings, forming jp'arthereof; in which. I

ig'ure 1is a perspective view of" a dental chair showing the improved foot rest; l

F i g.v 2, a fragmentaryside elevation showing' the main and extension"sections in'"horizontal' alignment;

Fig; a front'elevatio'n showing'th'e extension section swun'g upward into inclined position, and showing the improved locking bar in"locking'position, with one bearing bracket in section;

Fig. 4:, a fragmentary plan showing the main'and extension sections in horizontal alignment; I I

Fig. 5 a longitudinal section of the same, on line 5-5, Fig. 41:; y

Fig. 6, a similar section of the same, show ing the tension section swung upward into inclined position, and I a second extension section folded backward upon the first section;

Fig. one side bearing bracket; and

. Fig. 8, a fragmentary perspective view of the locking bar and lever.

Similar numerals refer to similar parts throughout the drawings.

The foot rest may include a main section 8, a forward extension section'lO, and a second extension section 11-; and the main section may include side bars 12 and 12 connected together by plates'13 securedto ears It on the bar as by means of rivets 15. Likewise 7, a fragmentary perspective view of the "side in-g- 16'" and" 16" of a..- extension section 10 may be -connected tegether by plates 17 secure'd 'to ears-18 on thebar,-as by rivets 19; 'lhe-forw'ardends offithe n'iai n side bars 12 'and'12t; terminate-in bearing compression spring located betweenoile swinging "bracket 21' and a'co11'ar-26' on-= the re dheld by a* cotter =p'iIi 27, asshow'ndn Fig. 3 of the drawings; e v

Each bearing bracket is provi'ded on its inner side with a =hig 28 extending 'dow-n- 'wa' rd and thenceforward term-11m finger 28" on its-lower end; -a nd ea*ch' bearing bracket is provided w-itha depending; arm 29 so positioned'tliat its end will abut the finger 28 when the extensionarms are iin horizontal-alignment with the-mainar'ms, as

shown in Fig. 5-; inwhichposition thereis an interval-between the 'body' ofthe" lug -"28 and the body of the arm 29. Another fingjer 28 may also be provided on the innerside' of I one or both bearing brackets; at spaced intervals-"in 'fro11t -o-f -the fingers 28, to serve asi'st o'ps for the''- ends of' the depending arms 29 when-theside 'bars 'ofthe extension section are swung upward into in-. clined positlon, as shown in Fig. 6.

Each bearing bracket isalso provided with a segmental socket 80, located below the bearings for the pivot rod 23, which'sockets I form bearings fo-r the ends of a locking bar 31 operating" between the lugs 28 on the bearing brackets and the arms 29 of the swinging brackets. The locking bar 31 has a substantial width as-compared with its thickness, and is preferably formed with flat sides and rounded edges. The bar is provided with an operating handle 32, which may be secured as by screws 33 at one end of the bar,'just insideithe swinging bracket,

whence it may curve downward and outward to be engaged by the foot or the hand of an operator. j I p The "width of the locking bar normally stands in upright position, with its thickof the bar along the bottoms of the ness between the depending lugs 28 and the depending arms 29, when the extension section is in horizontal alignment with the main section of the foot rest, as shown in Fig. 5; in which position the operating handle extends rearward under the main section, as shown in Fig. 2.

When it is desired to swing the extension section upward into inclined position, pressure is applied to the operating handle 32, as by the foot of the operator, which turns the bar in its socket bearings, so that its lower edge pushes the depending arms 29 forward and swings the extension upward, by a sliding of the lower edge at the ends segmental sockets 30.

In the turning of the bar its upper edge moves downward by a sliding of the same at the ends against the lugs 28 and along the rear sides of the sockets 30, until the width of the bar is interposed between the lugs and the depending arms so as to lock the extension in upwardly inclined position, as shown in Fig. 6; in which position of the locking bar the operating handle hangs downward, asshown by full lines in Fig. 3

and by broken lines in Fig. 2.

When it is desired to drop the extension section to horizontal position, it is only nec essary to swing the operating handle rearward and upward which is readily done by the foot, to the position shown in full lines in Fig. 2, which turns the locking bar and moves its rear edge upward and its forward edge rearward into normal position and permits the extension section to drop downward into horizontal position, as shown in Fig. 5.

I claim v 1. A foot rest, including a main section having a bearing bracket at each side of its forward end, anextension section having a bracket at each side of its rear end pivotally connected with the bearing brackets,

there being a socket in each of one pair of brackets spaced from the pivotal connection and an arm depending from one of the other brackets, a flat locking bar having ends hearing in the sockets and movable therein to interpose either its thickness or its width bet-ween the rear wall of the socket and the rear edge of the arm, and a finger on one socket bearing bracket to stop the arm when the extension section is aligned with the main section.

2. A foot rest, including a main section having abearing bracket at each side of its forward end, an extension section having a, bracket at each side of its rear end pivotally connected with the bearing brackets, there being a socket in each of one pair of brackets spaced from the pivotal connection and an arm depending from one-of the other brackets, a flat locking bar having ends bearing in the sockets and movable therein to interpose either its thickness or its width between the rear wall of the socket and the rear'edge of the arm, and a linger on one socket bearing bracket to stop the arm when the extension section is swung upward into inclined position.

3. A foot rest, including a main section having a bearing bracket at each side of its forward end, an extension section having a bracket at each side of its rear end pivotally connected with the bearing brackets, there being a socket in each of one pair of brackets spaced from the pivotal connection and an arm depending from one of the other brackets, a flat locking bar having ends bearing in the sockets and movable therein to interpose either its thickness or its width between the rear wall of the socket and the rear edge of the arm, and a handle on the bar for moving it from one position to another.

FRANK n. oasis.

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