GB2327973A - Multi - purpose three - legged stepladder - Google Patents
Multi - purpose three - legged stepladder Download PDFInfo
- Publication number
- GB2327973A GB2327973A GB9716553A GB9716553A GB2327973A GB 2327973 A GB2327973 A GB 2327973A GB 9716553 A GB9716553 A GB 9716553A GB 9716553 A GB9716553 A GB 9716553A GB 2327973 A GB2327973 A GB 2327973A
- Authority
- GB
- United Kingdom
- Prior art keywords
- legs
- stepladder
- leg
- purpose stepladder
- downwards
- 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.)
- Withdrawn
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C1/00—Ladders in general
- E06C1/02—Ladders in general with rigid longitudinal member or members
- E06C1/14—Ladders capable of standing by themselves
- E06C1/16—Ladders capable of standing by themselves with hinged struts which rest on the ground
- E06C1/20—Ladders capable of standing by themselves with hinged struts which rest on the ground with supporting struts formed as poles
- E06C1/22—Ladders capable of standing by themselves with hinged struts which rest on the ground with supporting struts formed as poles with extensible, e.g. telescopic, ladder parts or struts
Landscapes
- Ladders (AREA)
Abstract
A multi-purpose stepladder with three legs can be used when climbing stairs, on sloping and uneven ground, and unlike conventional stepladders, its widely splayed front legs 10 and its rear telescopic leg make it extremely stable. When not in use the stepladder can be folded for easy storage.
Description
MULTI-PURPOSE STEPLADDER
The invention relates to a multi-purpose stepladder.
Stepladders are well known for being dangerous because they are only stable when the ground is perfectly flat. My invention enables a step ladder to be used on sloping and uneven ground. It can also climb stairs, and is extremely stable, unlike conventional stepladders. When not in use the stepladder can be folded for easy storage.
The present invention is described as follows:
My stepladder has three legs, two in the front and one at the rear, the two front legs are joined together by the treads used for climbing the steps. The rear leg is joined between the two front legs at the top of the stepladder by the means of a hinge, thus enabling the leg to be moved back and forth when not in use. This rear leg is also telescopic and can be moved upwards and downwards by the means of a spring-loaded locking pin, which lengthens or shortens the leg as required. The two front legs of the steps are widely splayed at the base, creating a strong stability. The rake of the rear leg is fixed in one position by a check strap. One end is bolted to the tread on the steps, and the other end is bolted to the rear leg. For storage the check strap is released from the leg.
A specific embodiment of the invention will now be described by way of example with reference to the accompanying drawing in which :
Figure 1 shows front view of the steps on level ground;
Figure 2 shows side xiew of the steps on level ground;
Figure 3 shows telescopic legs extended and closed;
Figure 4 shows steps folded for storage;
Figure 5 shows side view of steps climbing stairs;
Figure 6 shows side view of steps on uneven or sloping ground.
Referring to the drawing Fig 1.
The multi-purpose stepladder comprises of two front legs 10 widely splayed at the base, joined together by the treads used for climbing the step treads 12.
As illustrated in Fig 2.
A hinge 13 fixed between both legs at the top of the step- ladder holds a rear leg 11, as shown in Figure 1. The leg is able to move back and forth, and when in use the rear leg 11 is locked in one fixed position by a check strap 17 which is bolted to a tread at one end, and to the rear leg 11 at the other end. This bracket is hinged 14 on the tread side, and can be moved out of use by releasing a wing nut 15 on the rear leg.
As illustrated in Fig 3.
This rear leg 11 is telescopic and can be moved upwards and downwards by means of a spring-loaded locking pin 18 which lengthens or shortens the leg as required. Attached to the base of the rear leg 11 is a swivel foot 16 which swivels back to front only, when placed on uneven ground. When not in use the stepladder can be folded for easy storage.
Claims (6)
1 A multi-purpose stepladder has three legs, two fixed legs at the front, and one telescopic leg at the rear. Both front legs are widely splayed at the bottom, creating a strong stability, which enables the stepladder to be used when climbing stairs or on uneven ground by simply releasing the spring4oaded bolt situated on the rear leg, and moving this leg either upwards or downwards as required. The rear leg is held by a check strap, thus keeping the distance between front and rear legs set in one position.
2 A multi-purpose stepladder with three legs, as claimed in claim 1 is unlike conventional stepladders because the two front legs are widely splayed at the base creating a strong stability.
3 A multi-purpose stepladder with three legs as claimed in claim 1 is simple to adjust to sloping ground by removing the springPloaded locking pin and moving the leg upwards or downwards to lengthen or shorten the leg as required.
4 A multi-purpose stepladder with three legs as claimed in claim 3 has its rear telescopic leg held in position by a check strap thus keeping the distance between the front and rear legs set in one position.
5 A multi-purpose stepladder with three legs as claimed in claim 1 or claim 3 is adjustable and stable when used for climbing stairs.
6 A multi-purpose stepladder with three legs as described herein with reference to
Figures 1-6 of the accompanying drawings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9716553A GB2327973A (en) | 1997-08-06 | 1997-08-06 | Multi - purpose three - legged stepladder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9716553A GB2327973A (en) | 1997-08-06 | 1997-08-06 | Multi - purpose three - legged stepladder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB9716553D0 GB9716553D0 (en) | 1997-10-08 |
| GB2327973A true GB2327973A (en) | 1999-02-10 |
Family
ID=10817026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9716553A Withdrawn GB2327973A (en) | 1997-08-06 | 1997-08-06 | Multi - purpose three - legged stepladder |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2327973A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1416117A1 (en) * | 2002-11-04 | 2004-05-06 | Etablissements Fournier, Sarl | Adjustable ladder |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB109502A (en) * | 1916-09-30 | 1917-09-20 | John Court | Tripod Safety Steps. |
| US4600080A (en) * | 1984-03-19 | 1986-07-15 | Forrester Charles R | Three-legged stepladder |
| GB2190419A (en) * | 1986-05-16 | 1987-11-18 | Arthur Albert Gould | Step ladders |
-
1997
- 1997-08-06 GB GB9716553A patent/GB2327973A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB109502A (en) * | 1916-09-30 | 1917-09-20 | John Court | Tripod Safety Steps. |
| US4600080A (en) * | 1984-03-19 | 1986-07-15 | Forrester Charles R | Three-legged stepladder |
| GB2190419A (en) * | 1986-05-16 | 1987-11-18 | Arthur Albert Gould | Step ladders |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1416117A1 (en) * | 2002-11-04 | 2004-05-06 | Etablissements Fournier, Sarl | Adjustable ladder |
| FR2846702A1 (en) * | 2002-11-04 | 2004-05-07 | Fournier Ets | ADJUSTABLE SCALE |
Also Published As
| Publication number | Publication date |
|---|---|
| GB9716553D0 (en) | 1997-10-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |