US3734236A - Adjustable ladder platform - Google Patents
Adjustable ladder platform Download PDFInfo
- Publication number
- US3734236A US3734236A US00208592A US3734236DA US3734236A US 3734236 A US3734236 A US 3734236A US 00208592 A US00208592 A US 00208592A US 3734236D A US3734236D A US 3734236DA US 3734236 A US3734236 A US 3734236A
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- US
- United States
- Prior art keywords
- platform
- ladder
- attaching
- ladders
- wall plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C7/00—Component parts, supporting parts, or accessories
- E06C7/48—Ladder heads; Supports for heads of ladders for resting against objects
Definitions
- ABSTRACT A stand off platform is attached to the top of a ladder 52 U.S.Cland....................182/121,182/214 51 Int. 7/16 [58] Field of Search.............................182/2l4,121
- the platform supports tools, paint cans, and the like.
- a suitable References Cited UNITED STATES PATENTS cushion on the edge of the platform keeps it from marring the wall.
- ADJUSTABLE LADDER PLATFORM My invention relates to an adjustable ladder platform, and more particularly to an adjustable means for giving the convenience of stepladders and the stability of conventional ladders.
- Stepladders conventionally have platforms which fold down and support paint cans, or the like. Usually, the length of these stepladders is limited, and they become unstable when their height exceeds, say, eight feet. Still, stepladders are very handy and convenient to use. Therefore, there is a need for a taller ladder which is stable and yet convenient.
- an object of my invention is to provide an adjustable ladder platform support, for engagement with a ladder of any conventional design.
- Another object of my invention is to provide a device of the character described, that is a separate and distinct accessory designed to be applied to a ladder.
- Still another object of my invention is to provide a device, that may be folded into a compact unit, that is easy to transport, and to apply the ladder.
- a further object is to provide a device that is as stable as a conventional ladder and as convenient as a stepladder.
- the invention provides an adjustably supported platform unit, that will fit any standard type of ladder, and both hold the ladder away from the wall and provide a stable support.
- the device is simple in construction, easy to manufacture, and highly efficient for the intended purpose.
- FIG. 1 is a perspective view of the device constituting my invention, applied to a portion of a ladder which is shown in phantom;
- FIG. 2 is a top view of the device as shown in FIG.
- FIG. 3 is a side view of a modified structure of the device, applied to a ladder shown in phantom;
- FIG. 4 is a cross-sectional view of the clamp arrangement shown in FIG. 3.
- the reference character identifies a wall plate equipped with a cushion material shown as 11.
- Cushion 11 may be attached to the wall plate 10 in any efficient manner. The cushions purpose is to keep the plate Hi from marring the adjacent wall.
- a pair of horizontally disposed members 12 and 12 are attached to the bottom of the platform and to angle irons 13.
- the angles 13 are equipped with an aperture to accommodate a bolt 14, which threadedly engages one of the apertures 15 in the wall plate 10. This bolt allows for the lateral adjustment of the members 12 and 12', to accommodate ladders of various widths.
- Platform 16 is horizontally disposed and rests on the top surfaces of the members 12 and 12.
- the platform 16 is provided with a plurality of apertures 17 which enables bolts 18 to be inserted into apertures in the top surface of the members 12 and 12, and also to accommodate the various widths of ladders shown in phantom as 19.
- the members 12 and 12' have open slots 20 closed by pins 21, to engage and capture one of the rungs shown as 22 and forming a part of the ladder l9.
- any other suitable means may also be employed to rigidly support the members 12 and 12' onto the rung of the ladder 19, thereby retaining the platform 16 in a horizontal position.
- a pair of brackets 23 and 23' are hingedly attached to the members 12 and 12' at the pivot point 24 by means of a bolt, as shown, or in any other efficient manner.
- I show the brackets 23 and 23' as being adjustable at 25 by means of a bolt 26, and a plurality of apertures 27.
- the lower ends of the brackets 23 and 23' are also equipped with open slots shown as 28, which slots 28 are also provided with a pin, or bolt 29, for capturing and retaining one of the rungs 22 of the ladder 19.
- FIG. 3 I show a modified construction, in which the lower end of the bracket 30 (which is of one piece construction) is clamped to the ladder 19 by means of a clamping member 31 (see FIG. 4), and fastened by means of a thumb-screw 32.
- This arrangement enables a varied adjustment for clamping the brackets 30 to the ladder 19.
- the horizontal platform may be adjustably mounted to the upper end of a ladder, to support paint, tools, or any other products for the convenience of the user.
- a ladder having a platform assembly attachment thereon
- said platform assembly attachment comprising a platform
- said platform comprising attaching means having one side thereof hingedly attached to the top rung of said ladder,
- a plurality of angular support means coupled to said attaching means and extending from the opposite side of said platform to a point on said ladder which is lower than said top rung,
- said cushioned means being interposed between said platform and an adjacent wall when said ladder is in place
- said means for adjustably fitting said platform on ladders of different widths comprising a series of apertures in said platform and in said cushioned wall plate means,
- said series of apertures being used to selectively couple said attaching means to different positions on said platform and on said wall plate
- the ladder of claim 1 and said attaching means including horizontal supports attached to bottom of said platform, said supports having open slots formed in the end thereof, and pins closing said slots to capture said rung in said slot.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ladders (AREA)
Abstract
A stand off platform is attached to the top of a ladder to hold it away from an adjacent wall. The platform supports tools, paint cans, and the like. A suitable cushion on the edge of the platform keeps it from marring the wall.
Description
[ 1 May 22, 1973 ted States Patent 1 outlet Malm [S4] ADJUSTABLE LADDER PLATFORM 2,722,360 11/1955 .....l82/214 2,806,642 9/1957 Miele ......182/214 3,057,431 10/1962 Ge0rge......... ......l82/2l4 .....182/214 lnvemorI e a 318M959Z ...W;...Ih l[ Avenue, Milwaukee, Wis. 53225 Dec. 16, 1971 2,680,554 6/1954 Dakin........... 2,908,345
[22] Filed:
Primary Examiner-Reinaldo P. Machado Att0rney-lrwin C. Alter et al.
21 Appl. No.: 208,592
[57] ABSTRACT A stand off platform is attached to the top of a ladder 52 U.S.Cl....................................182/121,182/214 51 Int. 7/16 [58] Field of Search...............................182/2l4,121
to hold it away from an adjacent wall. The platform supports tools, paint cans, and the like. A suitable References Cited UNITED STATES PATENTS cushion on the edge of the platform keeps it from marring the wall.
182/214 182/121 5 Claims, 4 Drawing Figures 1,004,284 Lehmann 2,606,079 8/1952 Patented May 22, 1973 3,734,236
INVENTOR GERALD HOUTLER ATTORNEYS FIG.2
ADJUSTABLE LADDER PLATFORM My invention relates to an adjustable ladder platform, and more particularly to an adjustable means for giving the convenience of stepladders and the stability of conventional ladders.
Stepladders conventionally have platforms which fold down and support paint cans, or the like. Usually, the length of these stepladders is limited, and they become unstable when their height exceeds, say, eight feet. Still, stepladders are very handy and convenient to use. Therefore, there is a need for a taller ladder which is stable and yet convenient.
Accordingly, an object of my invention is to provide an adjustable ladder platform support, for engagement with a ladder of any conventional design.
Another object of my invention is to provide a device of the character described, that is a separate and distinct accessory designed to be applied to a ladder.
Still another object of my invention is to provide a device, that may be folded into a compact unit, that is easy to transport, and to apply the ladder.
A further object is to provide a device that is as stable as a conventional ladder and as convenient as a stepladder.
It is manifest to those familiar with painting or the like, from a ladder that it is frequently inconvenient, or impossible to support the paint in a convenient manner. Hence, the invention provides an adjustably supported platform unit, that will fit any standard type of ladder, and both hold the ladder away from the wall and provide a stable support. The device is simple in construction, easy to manufacture, and highly efficient for the intended purpose.
Other and further objects of the invention will become more apparent as the description proceeds, when taken in conjunction with the drawings, in which:
FIG. 1 is a perspective view of the device constituting my invention, applied to a portion of a ladder which is shown in phantom;
FIG. 2 is a top view of the device as shown in FIG.
FIG. 3 is a side view of a modified structure of the device, applied to a ladder shown in phantom; and
FIG. 4 is a cross-sectional view of the clamp arrangement shown in FIG. 3.
Similar reference characters indicate corresponding parts and features throughout the several views. More particularly, the reference character identifies a wall plate equipped with a cushion material shown as 11. Cushion 11 may be attached to the wall plate 10 in any efficient manner. The cushions purpose is to keep the plate Hi from marring the adjacent wall.
A pair of horizontally disposed members 12 and 12 are attached to the bottom of the platform and to angle irons 13. The angles 13 are equipped with an aperture to accommodate a bolt 14, which threadedly engages one of the apertures 15 in the wall plate 10. This bolt allows for the lateral adjustment of the members 12 and 12', to accommodate ladders of various widths.
The members 12 and 12' have open slots 20 closed by pins 21, to engage and capture one of the rungs shown as 22 and forming a part of the ladder l9. Obviously, any other suitable means may also be employed to rigidly support the members 12 and 12' onto the rung of the ladder 19, thereby retaining the platform 16 in a horizontal position.
A pair of brackets 23 and 23' are hingedly attached to the members 12 and 12' at the pivot point 24 by means of a bolt, as shown, or in any other efficient manner. In FIGS. 1 and 2, I show the brackets 23 and 23' as being adjustable at 25 by means of a bolt 26, and a plurality of apertures 27. The lower ends of the brackets 23 and 23' are also equipped with open slots shown as 28, which slots 28 are also provided with a pin, or bolt 29, for capturing and retaining one of the rungs 22 of the ladder 19.
In FIG. 3, I show a modified construction, in which the lower end of the bracket 30 (which is of one piece construction) is clamped to the ladder 19 by means of a clamping member 31 (see FIG. 4), and fastened by means of a thumb-screw 32. This arrangement enables a varied adjustment for clamping the brackets 30 to the ladder 19.
From the above description, it will be apparent that the horizontal platform may be adjustably mounted to the upper end of a ladder, to support paint, tools, or any other products for the convenience of the user.
Although I have shown and described a specific structure of the parts and features constituting my invention, many changes may be made in the parts and features, without effecting their operativeness. Accordingly, the claims should be construed to cover all equivalent structures which do not depart from the spirit of my invention.
I claim:
1. A ladder having a platform assembly attachment thereon,
said platform assembly attachment comprising a platform,
said platform comprising attaching means having one side thereof hingedly attached to the top rung of said ladder,
a plurality of angular support means coupled to said attaching means and extending from the opposite side of said platform to a point on said ladder which is lower than said top rung,
a cushioned wall plate means attached to said opposite side of said platform,
said cushioned means being interposed between said platform and an adjacent wall when said ladder is in place,
means for adjustably fitting said platform on ladders of different widths,
said means for adjustably fitting said platform on ladders of different widths comprising a series of apertures in said platform and in said cushioned wall plate means,
said series of apertures being used to selectively couple said attaching means to different positions on said platform and on said wall plate, and
said positions depending on the width of said ladders.
2. The ladder of claim 1 and said attaching means including horizontal supports attached to bottom of said platform, said supports having open slots formed in the end thereof, and pins closing said slots to capture said rung in said slot.
3. The ladder of claim 2 wherein said angular support means have open slots formed in the end thereof and pins closing said slots. 4. The ladder of claim 3 and means whereby s gular support means are adjustable in length.
aid an-
Claims (5)
1. A ladder having a platform assembly attachment thereon, said platform assembly attachment comprising a platform, said platform comprising attaching means having one side thereof hingedly attached to the top rung of said ladder, a plurality of angular support means coupled to said attaching means and extending from the opposite side of said platform to a point on said ladder which is lower than said top rung, a cushioned wall plate means attached to said opposite side of said platform, said cushioned means being interposed between said platform and an adjacent wall when said ladder is in place, means for adjustably fitting said platform on ladders of different widths, said means for adjustably fitting said platform on ladders of different widths comprising a series of apertures in said platform and in said cushioned wall plate means, said series of apertures being used to selectively couple said attaching means to different positions on said platform and on said wall plate, and said positions depending on the width of said ladders.
2. The ladder of claim 1 and said attaching means including horizontal supports attached to bottom of said platform, said supports having open slots formed in the end thereof, and pins closing said slots to capture said rung in said slot.
3. The ladder of claim 2 wherein said angular support means have open slots formed in the end thereof and pins closing said slots.
4. The ladder of claim 3 and means whereby said angular support means are adjustable in length.
5. The ladder of claim 1 and clamp means for attaching said angular support means to the side rails of said ladder.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US20859271A | 1971-12-16 | 1971-12-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3734236A true US3734236A (en) | 1973-05-22 |
Family
ID=22775173
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US00208592A Expired - Lifetime US3734236A (en) | 1971-12-16 | 1971-12-16 | Adjustable ladder platform |
Country Status (1)
Country | Link |
---|---|
US (1) | US3734236A (en) |
Cited By (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2135378A (en) * | 1983-02-23 | 1984-08-30 | Brian Raymond Cook | Ladder tray |
GB2160570A (en) * | 1984-06-08 | 1985-12-24 | Henry John Frederick Crabbe | Ladder stabilizing devices |
US4696373A (en) * | 1986-07-25 | 1987-09-29 | Page Gerald R | Two-position ladder platform |
US4862994A (en) * | 1988-06-22 | 1989-09-05 | Hughes Sr Earl E | Ladder platform |
GB2221241A (en) * | 1988-07-27 | 1990-01-31 | Ronald Thompson | Platforms for ladders |
US5117941A (en) * | 1991-04-01 | 1992-06-02 | Eugene Gruber | Ladder bracket |
US5460241A (en) * | 1994-08-01 | 1995-10-24 | Labelle; James R. | Ladder accessory |
GB2301613A (en) * | 1995-06-03 | 1996-12-11 | Dennis Sydney Jenkins | Ladder platform |
US5647452A (en) * | 1995-09-15 | 1997-07-15 | Gauthier; Gilbert E. | Scafford jig |
US5862881A (en) * | 1996-12-02 | 1999-01-26 | Keith J. Jeffries | Safety scaffold and platform ladders |
US6715350B2 (en) * | 2002-07-12 | 2004-04-06 | Practical Tank Management, Inc. | Automatic tank gauge systems |
US20070205052A1 (en) * | 2006-02-22 | 2007-09-06 | John Dawson | Ladder attachment device |
US20120024630A1 (en) * | 2010-07-27 | 2012-02-02 | Vanlaningham Rodney | Ladder Supported Tree Stand |
US8881917B1 (en) * | 2012-06-28 | 2014-11-11 | Vajai Sooknanan | Scaffold tool rest |
US20180187486A1 (en) * | 2016-12-21 | 2018-07-05 | James B. Ford | Safety ladder |
US10047559B2 (en) * | 2016-09-07 | 2018-08-14 | Vare Invent AB | Platform ladder apparatus |
US10577863B2 (en) | 2017-09-20 | 2020-03-03 | John Garfield | Suspended work station |
US10619416B1 (en) * | 2017-10-25 | 2020-04-14 | Jim Snell | Attachment for an extension ladder |
US11280097B2 (en) | 2019-08-07 | 2022-03-22 | Brian Kenyon | Ladder-based winch-powered plank scaffold |
US11828107B1 (en) * | 2020-01-07 | 2023-11-28 | Robert P. Warunek | Ladder platform system |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1004284A (en) * | 1911-02-21 | 1911-09-26 | Ferdinand Lehmann | Adjustable ladder-support. |
US2606079A (en) * | 1950-07-10 | 1952-08-05 | White Mathew | Platform attachment for ladders |
US2680554A (en) * | 1949-10-15 | 1954-06-08 | Leonard F Dakin | Supporting means for ladders and scaffolds |
US2722360A (en) * | 1951-04-13 | 1955-11-01 | Clayton Mark & Company | Apparatus for supporting and bracing ladders |
US2806642A (en) * | 1955-07-13 | 1957-09-17 | Bernardo A Miele | Ladder offset apparatus |
US2908345A (en) * | 1956-03-09 | 1959-10-13 | Arthur W Lund | Combined ladder and scaffold sling support |
US3057431A (en) * | 1961-05-10 | 1962-10-09 | Grady F Quimby | Portable sportsman's seat |
-
1971
- 1971-12-16 US US00208592A patent/US3734236A/en not_active Expired - Lifetime
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1004284A (en) * | 1911-02-21 | 1911-09-26 | Ferdinand Lehmann | Adjustable ladder-support. |
US2680554A (en) * | 1949-10-15 | 1954-06-08 | Leonard F Dakin | Supporting means for ladders and scaffolds |
US2606079A (en) * | 1950-07-10 | 1952-08-05 | White Mathew | Platform attachment for ladders |
US2722360A (en) * | 1951-04-13 | 1955-11-01 | Clayton Mark & Company | Apparatus for supporting and bracing ladders |
US2806642A (en) * | 1955-07-13 | 1957-09-17 | Bernardo A Miele | Ladder offset apparatus |
US2908345A (en) * | 1956-03-09 | 1959-10-13 | Arthur W Lund | Combined ladder and scaffold sling support |
US3057431A (en) * | 1961-05-10 | 1962-10-09 | Grady F Quimby | Portable sportsman's seat |
Cited By (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2135378A (en) * | 1983-02-23 | 1984-08-30 | Brian Raymond Cook | Ladder tray |
GB2160570A (en) * | 1984-06-08 | 1985-12-24 | Henry John Frederick Crabbe | Ladder stabilizing devices |
US4696373A (en) * | 1986-07-25 | 1987-09-29 | Page Gerald R | Two-position ladder platform |
US4862994A (en) * | 1988-06-22 | 1989-09-05 | Hughes Sr Earl E | Ladder platform |
GB2221241A (en) * | 1988-07-27 | 1990-01-31 | Ronald Thompson | Platforms for ladders |
US5117941A (en) * | 1991-04-01 | 1992-06-02 | Eugene Gruber | Ladder bracket |
US5460241A (en) * | 1994-08-01 | 1995-10-24 | Labelle; James R. | Ladder accessory |
GB2301613A (en) * | 1995-06-03 | 1996-12-11 | Dennis Sydney Jenkins | Ladder platform |
US5647452A (en) * | 1995-09-15 | 1997-07-15 | Gauthier; Gilbert E. | Scafford jig |
US5862881A (en) * | 1996-12-02 | 1999-01-26 | Keith J. Jeffries | Safety scaffold and platform ladders |
US6715350B2 (en) * | 2002-07-12 | 2004-04-06 | Practical Tank Management, Inc. | Automatic tank gauge systems |
US20070205052A1 (en) * | 2006-02-22 | 2007-09-06 | John Dawson | Ladder attachment device |
US20120024630A1 (en) * | 2010-07-27 | 2012-02-02 | Vanlaningham Rodney | Ladder Supported Tree Stand |
US8881917B1 (en) * | 2012-06-28 | 2014-11-11 | Vajai Sooknanan | Scaffold tool rest |
US10047559B2 (en) * | 2016-09-07 | 2018-08-14 | Vare Invent AB | Platform ladder apparatus |
US20180347277A1 (en) * | 2016-09-07 | 2018-12-06 | Vare Invent AB | Platform ladder apparatus |
US10801262B2 (en) * | 2016-09-07 | 2020-10-13 | Ståsäker Ab | Platform ladder apparatus |
US20180187486A1 (en) * | 2016-12-21 | 2018-07-05 | James B. Ford | Safety ladder |
US10900282B2 (en) * | 2016-12-21 | 2021-01-26 | James B. Ford | Safety ladder |
US10577863B2 (en) | 2017-09-20 | 2020-03-03 | John Garfield | Suspended work station |
US10619416B1 (en) * | 2017-10-25 | 2020-04-14 | Jim Snell | Attachment for an extension ladder |
US11280097B2 (en) | 2019-08-07 | 2022-03-22 | Brian Kenyon | Ladder-based winch-powered plank scaffold |
US11828107B1 (en) * | 2020-01-07 | 2023-11-28 | Robert P. Warunek | Ladder platform system |
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