|Publication number||US2415289 A|
|Publication date||4 Feb 1947|
|Filing date||24 Nov 1945|
|Priority date||24 Nov 1945|
|Publication number||US 2415289 A, US 2415289A, US-A-2415289, US2415289 A, US2415289A|
|Inventors||Jury Edward J|
|Original Assignee||Homer J Craft|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (4), Referenced by (7), Classifications (6)|
|External Links: USPTO, USPTO Assignment, Espacenet|
Feb. 4, 1947. E. J; JURY. 2,415,289
FOLDING STEP FOR LADDERS Origineil Filed June 25, 1941 2 Sheets-Sheet l Inventor DIVA/172 f Jmr he y Attorney Feb. 4, 1947. E, JURY 2,415,289
FOLDING STEP FOR LADDERS Original Filed June 25, 1941 2 Sheets-Sheet 2 Inventor fph APD JJZP? Patented Feb. 4-, 1947 FOLDING STEP FOR LADDERS Edward J. Jury, Clearfield, Pa., assignor to Homer 3. Craft, Akron, Ohio Substituted for abandoned application Serial No.
399,713, June 25, 1941. vember 24, 1945, Serial No. 630,659
3 Claims. 1.
My invention relates to improvements in folding steps for straight ladders, the principal object in view being to provide a simply constructed, safe, device of this character which may be easily attached to the rounds of a straight ladder to form a fiat, wide step, or platform, thereon, and which is adapted to be folded when not in use into compact form for storage or carrying.
The instant application is substituted for application Serial No. 399,713, filed June 2'5, 1941.
To the accomplishment of the above, and the subordinate objects presently appearing, a preferred embodiment of my invention has been illustrated in the accompanying drawings, set forth in detail in the succeeding description, and defined in the claims appended hereto.
in said drawings:
Figure l is a view in vertical section taken on the line l-i of Figure 2 and showing a ladder equipped with my improved folding steps,
Figure 2 is a fragmentary View in front elevation,
Figure 3 is a view in bottom plan of the folding steps detached,
Figure 4 is a fragmentary view in top pian, partly in section,
Figure 5 is a detail view in transverse section taken on the line 55 of Figure 7, and drawn to an enlarged scale,
Figure 6 is a View in perspective of one of the bails, and
Figure 7 is a view in top plan showing the balls folded.
Referring to the drawings by-numerals, ac.- cording to my invention a ladder step is provided i the form of a rectangular platform I of wood, or other suitable material, and of the proper size to fit, with a wide clearance, between the side members 2 of the ladder to project, when substantially centered relative to said members, for a substantial distance forwardly and rearwardly of said members. The bottom face of the plat..-
.form I has suitably formed thereon a series of transversely rounded, cross, cleats 3 extending parallel in laterally spaced relation and the purpose of which will presently be clear.
A pair of rodlike, ide, keeper bails 4 are provided for the platform I, each of which comprises a pair of front and rear legs 5, 6 having right angled feet 8 pivotally connected to the top of the platform adjacent what constitutes the front and rear corners thereof, and by hook-shaped bolts 9 having threaded ends extending downwith wing nuts In providing for loosening of said This application No- 2 bolts to detach the balls 4, should occasion require, and, for instance, in replacement of parts. The feet 8 and bolts 9 are adapted so that the bails 4 are swingable, on the one hand, upwardly of said platform to unfold the same into upstanding position on opposite sides of the platform, as shown in Figure 2, or, on the other hand, swingable downwardly and inwardly over said platform I into crossed folded relation, as best shown in Figure 7.
The bails 4 are substantially V-shaped and the outer ends of the legs 5, 6 of each bail are connected by a U-shaped bridge portion II designed when the platform is placed on top of one round 52 of the ladder, and said bails unfolded, to span and frictionally grip the next higher round 13, best shown in Figure 1, so that said platform is locked to said higher round in attached position against turning on the lower round. Also, the bridge portions II are proportioned so that when the platform I is attached, the closed ends of said portions are spaced from the platform a distance less than the distance between the rounds I2, I3, thereby said platform may be shifted forwardly and rearwardly, using the upper round I3 as a fulcrum, to cant the platform and thereby level the same when the ladder is stood at different angles. The described cleats 3 interlock in pairs with the lower rounds I2 to prevent the platform I from slipping in the different canted position thereof.
By unfolding the bails 4, in the manner already described, said bails may be easily displaced from gripping relation to detach the platform as will be clear.
The feet 8 of the rear legs 6 are provided with right angled, terminal extensions M for engaging the top of the platform I and establishing the unfolded positions of the bails 4. The feet 8 of the front legs 5 are similarly provided with extensions I 5 oppositely turned relative to extensions M and similarly engaging the platform I to lock the bails 4 in unfolded position. The balls 4 are formed of resilient metal and feet 8 of the front legs 5 are slidable forwardly and rearwardly, as represented in dotted lines in Figure 4-, in the bolts 9 so that when said bails 4 are unfolded the front legs 5 may be pulled forwardly with the extensions I5 clear of the front edge of the platform I and the bails 4 thus unlocked for folding. Since the balls 4 are of resilient material, the front legs 5 thereof will react when said bails are folded .to frictionally engage the locking extensions I5 with the front edge of the platform I, as indicated in Figure 7 and thus lock said bails folded.
The foregoing will, it is believed, suffice to impart a clear understanding of my invention without further explanation.
Manifestly, the invention, as described, is susceptible of modification without departing from the inventive concept, and right is herein reserved to such modifications as fall within the scope of the subjoined claims.
What I claim is:
1. A folding step for attachment to the rounds of a ladder between the side members thereof comprising a rectangular platform adapted to be imposed on one round of the ladder crosswise thereof, and a pair of keeper bails at opposite sides of said platform, respectively, swingably mounted thereon for unfolding upwardly into upright positions at said sides and for folding downwardly on said platform into crossed position, said bails comprising resilient U-shaped portions constructed and arranged to be swung upwardly beneath a round of the ladder under such upward swinging of said bails into straddling friction gripping relation to said round as an incident to unfolding of said bails.
2. A folding step for attachment to the rounds of a ladder between the side members thereof comprising a rectangular platform adapted to be imposed on one round of the ladder crosswise thereof, a pair of keeper bails at opposite sides of said platform, respectively, swingably mounted thereon for unfolding upwardly into upright positions at said sides 'and for folding downwardly on said platform into crossed position, said bails comprising resilient U-shaped portions constructed and arranged to span and frictionally grip a round of the ladder during such upward swinging of said bails, said bails being resilient and provided with extensions engageable with an edge of the platform by springing of the bails and interlocking with said edge to retain the bails folded.
3. Afolding step for attachment to the rounds of a ladder between the side members thereof comprising a rectangular platform adapted to be imposed on one round of the ladder crosswise thereof, a pair of keeper bails at opposite sides of said platform, respectively, swingably mounted thereon for unfolding upwardly into upright p0- vsitions at said sides and for folding downwardly on said platform into crossed position, said bails comprising resilient U-shaped portions constructed and arranged to span and frictionally grip an upper round of the ladder under such upward swinging of said bails, said bails being provided, respectively, with oppositely turned lateral extensions for engaging the top of the platform to lockthe bails in unfoldedposition against folding.
EDWARD J. JURY.
REFERENCES CITED The following references are of record in the file of this patent:
UNITED STATES PATENTS Number Name Date 2,282,133 Horton May 5, 1942 2,104,987 Harding Jan. 11, 1938 2,318,493 Johnson May 4, 1943 1,920,552 Dollerhide T Aug. 1, 1933
|Cited Patent||Filing date||Publication date||Applicant||Title|
|US1920552 *||26 Dec 1929||1 Aug 1933||Dollerhide Charles M||Detachable safety ladder step|
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|Citing Patent||Filing date||Publication date||Applicant||Title|
|US2439185 *||7 Dec 1945||6 Apr 1948||Conrad J Patt||Ladder attachment step|
|US4586586 *||13 Aug 1985||6 May 1986||Carlos Canals||Work-step for extension ladder|
|US4696373 *||25 Jul 1986||29 Sep 1987||Page Gerald R||Two-position ladder platform|
|US4909351 *||17 Jul 1989||20 Mar 1990||Johnson Charles E||Platform attachment for a ladder|
|US5842253 *||26 Nov 1996||1 Dec 1998||Ahl; Frank E.||Ladder supported holding tray for a paint roller|
|US6109392 *||9 Sep 1999||29 Aug 2000||Merrick; Harry G.||Split platform ladder stand|
|US8201661||5 Mar 2010||19 Jun 2012||O'connell Sr Denis J||Platform for extension ladder|
|U.S. Classification||182/121, 248/238|
|International Classification||E06C7/00, E06C7/16|