US1537221A - Ladder stool - Google Patents

Description

G. H. BUG ENHAGEN LADDER STOOL Filed April 17, 1924 INVENTOR Q &\E\

ATTORNEY Patented May 1 2, 1925.-

UNITED STATES GEORGE H. BUGENHAGEN, QEIVIIFSTOT, DAKOTA.

LADDER STOOL.

Application filed April 17, iaie. No, 707,218.

To all whom it may concern:

Be it known that I, GEORGE H. BUGELL HAGEN, a citizen of the United States, and a resident oi Minot, in the county of Ward and State oi North Dakota, have invented a new and useful Improvement in Ladder Stools, or" which the following is a full, clear, and exact description. I I

My invention relates to improvements in ladder stools, and it consists in the combinations, constructions, and a-rrangementsherein described and claimed.

An object of my invention is to provide a ladder stool of the type described, which when in operative position is-rigidly braced so as to prevent the collapsing of the device.

A further object of my invention is to provide a device-of the type describe in which the seat portion and the auxiliary legs maybe folded into a compact position so as to permit the device to be disposed in, a: small out-of-the-way place. I V

A further object of my invention is to provide a device of the type-described, which is simple in construction, and which is durable and efficient for the purposeintended.

Other objects and advantages will appear in the following specification, and the novel features of the invention will be particularly pointed out in the appended claims.

My invention is illustrated in the accompanying drawings, forming part of this application, in which Figure 1 is a perspective view of the device, and

Figure 2 is a vertical section through the device a-s'shown in foldedposition.

In carrying out my invention, I provide a step ladder portion A, a seat B, and sup-,

porting legs 0. The step ladder portion A consists of side members 1 and steps 2. The steps also act as reenforcing members for the 7 step ladder.

The seat B comprises a body portion 3 and angle irons 4. As clearly shown in Figure 2, the angl e irons 4 are pivotally secured to the upper ends of the side pieces 1. The

supporting legs 5 are operatively connected to the pieces 1 by means of a mechanism shown inFigure 2. The bars composing this mechanism are arranged so as to provide a solid support-to the device when the device is in operative position. The supporting legs 5 when inextended position bear against the under side of the horizontal 'io'the supporting legs 5 ()if connecting members, each set being comthe upper end of ii: ges of the angle irons porting the seat portion 3.

The n'iechanism that connects the pieces 1 4 and" aid in sup posed of a link 6 that is pivotally secured to cured at its other endto a link 8 at 9. The link 8 in turn is pivotally secured to the rear leg 5. Itshould be noted that twoiinks (3 and two links 8 are provided, these links connecting the pieces 1. with the legs 5 in the manner just described. An arm'9 is pivotally secured to the angle irons ,4 at 10 and has its free end pivotally secured to, a

link 11 at 12. The pins are carried by the comprises two sets L118 piecel at 7 and is serear legs 5 and therefore connect the links 9 and 11 to the rear legs 5. The links 6 and 11 are in turn pivot-ally secured to each other at 13. A link 14 connects the link 11 to the piece 1 in the same manner as the link 8 connects the link 6 to the leg 5. The link 14 is pivotally secured to the link 11 at 15' and is pivotally secured to the piece 1 at 16.

From the foregoing description of the various parts of the device, the operation there'- of may be readily understood. When the device is in folded position, the mechanism that connects the legs 5 to the ladder portion A assumes the position shown by the full lines in Figure 2 of the drawings. When the legs I 5 are swung away from the ladder portion A, the various arms'and legswill swing into the dotted line position shown in Figure 2, and thus rigidly support the device in operative position. It will be noted from the drawing that the links 8 and 14are disposed substantially in alignment with eachother when the device is in operative position, This construction prevents thelegs 5 from accidental movement inwardly toward the ladder portion 8. In like mannenthe arms 9 are disposed substantially parallelwith' 5 from moving toward the plane parallel with the plane of the ladder portion A. It will therefore appear that the device when in inoperative position takes up very little space. The legs are held apart by the rungs 17 in the same manner as the pieces 1 are held apart by the steps 2.

The steps 2- and the seat 3 permit the device to be used as an ordinary step ladder. The device is also of snoh a height that it is adapted to be used as a kitchen stool. The device is very simple in construction and makes use of a novel means for bracing the legs 5 so as to prevent the accidental movement of the legs while tiie device is being used.

I claim:

1 A ladder stool comprising a ladder portion, a seat pivotall; secured to said ladder portion, supporting legs for said seat and means including links connecting said ladder portion, seat, and legs together, said means being adapted to swing said ladder port-ion, seat, and logs into parallel relation with respect to each other, and to swing said legs away from said ladder portion, and into a position to support said seat, certain of said links being disposed in alignment with each other when said legs are in extended position, whereby said legs are locked in extended position.

2. A ladder stool comprising a ladder portion, a seat pivotally secured to said ladder portion, supporting legs for said seat, links pivotally secured to each other intermediate their ends and having one of their ends pivotally secured to said ladder portion and one oi said legs respectively, a second set of links pivotally secured to the free ends of said first named links and having their free ends lpivotally secured to said ladder portion and said leg respectively, said las named links adapted to be swung into substantial. alignment with each other when said le s in extended position, whereby said I are locked in extended position.

3. A ladder stool comprising a ladder portion, a seat pivot-ally secured to said ladder portion, supporting legs for said seat, links pirotally secured to each. other intermediate their ends and having one of their ends pivotally secured to said ladder portion and one of said legs respectively, said second set of links pivotally secured to the free ends of said first named links and having their free ends pivotally secured to said ladder portion and said leg respectively, said last named links adapted to be swung into substantial alignment with each other when said legs are in extended position, whereby said legs are locked in extended position, and irons connecting said seat to said legs, whereby said seat is swung into operative posit-ion when said legs are swung away from said ladder portion.

GEORGE H. BUGENHAGEN.

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