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Publication numberUS2876047 A
Publication typeGrant
Publication dateMar 3, 1959
Filing dateAug 31, 1956
Priority dateAug 31, 1956
Publication numberUS 2876047 A, US 2876047A, US-A-2876047, US2876047 A, US2876047A
InventorsLa Plante Romeo F
Original AssigneeLa Plante Romeo F
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Auxiliary ladder step assembly
US 2876047 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

March 3, 1959' R. F. LA PLAN'TE 2,876,047

' AUXILIARY LADDER .STEP ASSEMBLY Filed Aug. 31, 1956 INVENTOR.

ROMEO F- LA DLANTE BY P A-r-roznevs is moved upwardly United States Patent 2,876,047 AUXILIARYLADDER STEP ASSEMBLY Romeo F. La Plante, Oneida, N. Y.

Application August 31, 1956, Serial No. 607,305 3 Claims. (Cl. 304-315 The present invention relates generally to ladders, and specifically to an auxiliary ladder step assembly for use with an extension ladder, or the like.

An object of the present invention is to provide an auxiliary ladder step assembly. which may be, attached to the upper section of an extension ladder and may be left attached to the upper section .while the upper section or downwardly relative to the ladder lower section. j j

,Another object of the present invention is to provide an auxiliary ladder step assembly which lends itself to easy portability, rapid erection upon a ladder portion, safe support of. the individual using the ladder, and speedy adjustment of the assembly to extension ladders, or the like, having various lengths between their rungs.

, A further object of the present invention is to provide an auxiliary ladder step assembly which is simple in construction, one sturdy in structure, and economical to manufacture in quantity, and one which is highly effective in action.

These and other objects and advantages of the present invention will be fully apparent from the following description when taken in connection with the annexed drawing, in which:

Figure 1 is a perspective view of an extension ladder I with the auxiliary ladder step assembly of the present invention secured thereto,

Figure 2 is a sectional view on an enlarged scale, with a portion broken away, taken on line 2-2 of Figure 1,

Figure 3 is a sectional view on an enlarged scale, taken on line 33 of Figure 1, and

Figure 4 is a sectional view taken on line 4-4 of Figure l, and on an enlarged scale.

Referring in greater detail to the drawing in which like numerals indicate like parts throughout the several views, the auxiliary ladder step-assembly according to the present invention comprises a pair of upright support members and 11 each of angle configuration arranged in parallel spaced relation and adapted for use with either a single ladder section or with the upper or lower ladder section of an extension ladder, as shown in Figure 1.

The support members 10 and 11 are arranged with respect to each other so that one leg 12 of the member 10 faces the one leg 13 of the member 11 with the other leg 14 of the member 10 parallel to the other leg 15 of the member 11.

When the auxiliary ladder step assembly of the present invention is used with'a ladder 16, the outer faces of the one legs 12 and 13 of the members 10 and 11 respectively,

abuttingly engage the rungs 17 and 18 of the ladder 16, and the outer faces of the other legs 14 and 15 of the members 10 and 11 respectively, abuttingly engage the inner faces of the rails 19 and 21 of the ladder 16.

A plurality of horizontally disposed plates 22 are arranged in superimposed spaced relation and are positioned so that each has its rearward half portion extending between the support members 10 and 11 and has its forward half portion positioned forwardly of the support members 10 and 11. Each plate 22 has the end edges of its rearward half portion fixedly secured by welding, or other means, to the inner faces of the other legs 14 and 15 of the support members 10 and 11 respectively, and has the adjacent parts, of the side edge of the rearward portion fixedly secured by welding, or other suitable *means to the inner faces of the legs 12 and 13 of the support members 10 and 11 respectively.

Means is provided on the members 10 and 11 for detachably securing the members 10 and 11 to the ladder rungs 17 and 18. Specifically, this means comprises a pair of brackets 23 secured by bolt and wingnut assemblies 24 to the upper end of each of the support members 10 and 11, although only the bracket 23 associated with the support member 11 is illustrated in Figures 1 and 2.

The upper end portions of the support members 10 and 11 are provided with closed slots in which the bolts of the bolt andwing nut assemblies24 are slidable so that the brackets 23 may be adjusted vertically relative to the support members 10 and 11. The lower end portions of the support members 10 and 11 have, on the outer faces of the legs 12 and 13, outwardly projecting L-shaped brackets 25 which rest upon the rung 18 and is held inplace by a third bracket 26 which is slidably mounted upon the outer face of the leg 13 of the support member 11. upon the leg 12 of the support member 10 and is similarly movable to receivingly engage the other end of the rung 18 against another bracket 25 serving as a stop for the latter. Other bolt and wing nut assemblies 27 form the means for releasably securing the brackets 25 and 26 in their rung embracing positions.

Base means embodying a gusset plate 28 extends between and is fixedly secured to each end of each of the plates 22 on the under side of the ladder and to the adjacent portion of each of the legs 13 and 14 of the members 10 and 11.

The forward edge of each of the plates 22 is bent downwardly to form a lip 29, the under side of which engages the for-ward upper corner of the respective gusset plates 28 for securely holding the gusset plate 28 in the assembled and welded position.

In use, the auxiliary ladder step assembly of the present invention is quickly and easily attached to any ladder by loosening the bolt and wing nut assemblies 27 and dropping down the brackets 26. The brackets 23 are then hooked over the appropriate one of the rungs 17 and adjusted to the distance between the rungs 17 and 19, so that the bracket 25 rests upon and forms a stop for the rung 18. The bracket 26 is then moved into the position embracing the rung 18 and the bolt and wing nut assembly 27 tightened, so that the auxiliary ladder step assembly of the present invention is securely fastened to the ladder 16 and may be transported therewith.

It is intended that the assembly of the present invention be constructed of lightweight metal so that it is of easy portability and also of economical construction.

What is claimed is:

1. For use with a ladder including spaced side rails and at least two rungs connecting the rails together, an auxiliary ladder step assembly comprising a pair of upright support members each of angle configuration arranged in spaced relation so that one leg of one member faces one leg of the other member with the other leg of said one member parallel to the other leg of said other member, said members being adapted to have the outer faces of said one legs abuttingly engage the rungs of said ladder and the outer faces of said other legs abuttingly engage the inner faces of said ladder rails, a plurality of horizontally disposed plates arranged in superimposed spaced relation and positioned so that each has Patented "Mar. 3, 1959' Another bracket 26 is similarly mounted j a r 2,878,047

its rearward portion between said members and its forwardportion. forwardly of said members, each of said N plates having the end edges of its rearward portion fixedly secured to the inner faces of said parallel other legs of said- -m cmbers andthe adjacent parts ofthe sideedge of saidg-nearward portion fixedly securedto-the inner faces of: said facing one- Iegsofsaidmembers, and means on Said facingzone. legs of said members inwardly of the ends of said members for detachably securing said members tosaid, ladder rungs;

2. For use, with a ladder including spaced side rails and at, least two rungsconnecting' the rails together, an auxiliary ladder step assembly comprising a pair of upright support members each of angle configuration arranged, in spaced relation so that one leg of one member faces;one leg of the othermemberwith-the other leg of said one, member parallel to the other leg of said other member; said membersbeing adapted to have the outer faces of. said one legs-abuttingly engage the rungs of saidladder' and the outer facesof said other legs abuttingly engage the inner faces of said ladder rails, a plurality of horizontally disposed: plates arranged in superimposed spaced relation and positioned so that each has :its rearward half portion between said members and itsforwa-rd half portion forwardly of said members, each of said plates having the end edges of its rearward half portionfixedly secured to the inner faces of parallel other legs of said members and the adjacent parts of the side-edgeof; said rearward half portion fixedly secured to the inner faces of said facing one legs of said members, means on said facing one legs of said members inwardly of the ends of said members for detachably securing said members to, said ladder rungs, and brace means extending between and fixedly secured to each end of each of said plates on the under side of the ladder andthe adjacent portion of said parallel other leg.

3. For-use With-a ladder including spaced side rails and at least two rungs connecting the rails together, an

"auiiiiar' iaaasr step assembly comprising a' pair 'of 'up right support members eacli of angle configuration arranged in spaced relation so that one leg of one member faces one leg of the other member with the other leg of said one member parallel to the other leg of said other member, said members being adapted to have the outer faces of said one legs abuttingly engage the rungs of said ladder and the outer faces of said other legs abuttingly engage the inner faces of said ladder rails, a plurality of horizontally disposed plates arranged in superimposed spacedrelation and positioned so that each has its rearward half portion between said members and its forward half portion forwardly of said members, each of said plates having the end edges of its rearward half portion fixedly secured to the inner faces of said parallel other legs of said members and adjacent parts of the sideedge of said rearward half portion fixedly secured to the inner faces ofsaid facing one legs of said members, and base means embodying a plate extending be tween and fixedly secured to each end of each of said plates von the under side of the ladder and the adjacent portion of said parallel other leg.

' References Cited in the file of this patent UNITED STATES PATENTS 221,780 Clark Nov. 18, 1879 966,852 Norton Aug. 9, 1910 1,045,099 Walker Nov. 19, 1912' 2,174,891 Maran Oct. 3, 1939 2,439,185 Patt Apr. 6, 1948 2,684,193 Buckley July 20, 1954

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US221780 *Oct 4, 1879Nov 18, 1879 Improvement in adjustable ladder-steps
US966852 *Apr 23, 1909Aug 9, 1910Alfred G CarleyLadder brace and bracket.
US1045099 *Jul 1, 1911Nov 19, 1912William J StrayerLadder-bracket.
US2174891 *Jan 7, 1939Oct 3, 1939Alfred MaranLadder attachment
US2439185 *Dec 7, 1945Apr 6, 1948Conrad J PattLadder attachment step
US2684193 *Feb 26, 1952Jul 20, 1954Francis G MedleyStepladder
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2945549 *Dec 1, 1958Jul 19, 1960Gagnon Paul LDetachable ladder step
US2948349 *Oct 6, 1958Aug 9, 1960Reddy John WFoot rest and work platform attachment for ladders
US2948350 *Feb 6, 1959Aug 9, 1960Hillory BohannanAdapter step for ladders
US3256954 *Mar 31, 1965Jun 21, 1966Brown William HSelf-propelled means for scaffolds
US3276543 *Oct 15, 1964Oct 4, 1966Bernard KanozaDetachable foot support for ladders
US3372772 *May 9, 1966Mar 12, 1968Murray SingerSafety guard
US3503468 *Jul 22, 1968Mar 31, 1970Earl W SolomonPlatform attachment for ladders
US4100999 *May 6, 1977Jul 18, 1978Joe Derrell ConnerDeer hunting stand attachment
US4181195 *Feb 13, 1978Jan 1, 1980Clarke Clifford RLadder lock
US4804063 *Jul 18, 1988Feb 14, 1989Farris Ben JAuxiliary safety step for round ladder rungs
US5005668 *Jul 20, 1990Apr 9, 1991Nowlan Bud CLadder step support
US5052515 *Aug 3, 1990Oct 1, 1991Nowlan Bud CLadder step support
US6189652Jul 29, 1999Feb 20, 2001Current Products, Inc.Ladder platform
US7434661 *Jun 7, 2005Oct 14, 2008Storey Robert DPortable ladder
US8201661Mar 5, 2010Jun 19, 2012O'connell Sr Denis JPlatform for extension ladder
US8596212 *Apr 29, 2011Dec 3, 2013Wag Products, LlcApparatus and method for boarding animals onto a boat
US20120273303 *Nov 1, 2012James M. PerkinsApparatus and Method for Boarding Animals onto a Boat
Classifications
U.S. Classification182/206, 182/121
International ClassificationE06C7/00, E06C1/38, E06C1/00, E06C7/16, E06C1/12
Cooperative ClassificationE06C7/16, E06C1/38, E06C1/12
European ClassificationE06C7/16, E06C1/12, E06C1/38