CA2305199A1 - Laterally assisting platform support - Google Patents
Laterally assisting platform support Download PDFInfo
- Publication number
- CA2305199A1 CA2305199A1 CA002305199A CA2305199A CA2305199A1 CA 2305199 A1 CA2305199 A1 CA 2305199A1 CA 002305199 A CA002305199 A CA 002305199A CA 2305199 A CA2305199 A CA 2305199A CA 2305199 A1 CA2305199 A1 CA 2305199A1
- Authority
- CA
- Canada
- Prior art keywords
- platform support
- laterally
- assisting platform
- ladder
- laterally assisting
- 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.)
- Abandoned
Links
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 239000000725 suspension Substances 0.000 claims description 2
- 238000005096 rolling process Methods 0.000 claims 2
- 230000007246 mechanism Effects 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 claims 1
- 239000007787 solid Substances 0.000 claims 1
- 230000009194 climbing Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
Classifications
-
- 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
- E06C7/484—Supports specially adapted for use with a wall opening, e.g. windows
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C7/00—Component parts, supporting parts, or accessories
- E06C7/16—Platforms on, or for use on, ladders, e.g. liftable or lowerable platforms
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C7/00—Component parts, supporting parts, or accessories
- E06C7/18—Devices for preventing persons from falling
- E06C7/181—Additional gripping devices, e.g. handrails
- E06C7/182—Additional gripping devices, e.g. handrails situated at the top of the ladder
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ladders (AREA)
Abstract
The novel side auxiliary platform support provides a surface for standing or walking on at the side of a simple ladder erected against a support or a free-standing extendible multipurpose double ladder. The support can be folded out and folded away and has rails which can also be folded away. The invention also prevents the ladder from tipping or slipping in the case of a simple ladder or rocking in the case of an extended double ladder. The support is configured in such a way that the side auxiliary platform can be completely folded out and folded away on the side of a ladder on which it is mounted.
Wall running rollers are also provided on the front surfaces of the side auxiliary platform in order to make it easier to push an extendible simple ladder on which the side auxiliary platform is mounted up a wall. Integrated wall supports prevent a simple ladder from canting when the side auxiliary platform is folded out.
Wall running rollers are also provided on the front surfaces of the side auxiliary platform in order to make it easier to push an extendible simple ladder on which the side auxiliary platform is mounted up a wall. Integrated wall supports prevent a simple ladder from canting when the side auxiliary platform is folded out.
Description
Laterally assisting platform support The invention relates to a laterally assisting platform support in accordance With the preamble of claim 1, as is disclosed in EPA-0 045 140.
With known ladders, the ascent and descent from the roof, out of window openings or from other high-lying standing areas onto a leant-to ladder is not without risk. A person climbing, for example, from a flat roof onto a lean-to ladder in order to descend, has first of all to go right up to the roof edge in order to hold onto the protruding head end of the ladder ~.5 and then has to rotate through 180° so that the foot finds grip on a ladder rung. Only then can the descent begin.
The risks include the unsecured standizig on the roof edge, the holding onto the laterally slipping ladder (which then also has to be held onto) and the 1.80° body rotation in order to climb dawn the ladder backward. The risk of falling is therefore very high.
The object of the invezltion is to eliminate the dangerous points of known ladders, namely the standing on the roof edge, the lateral slipping of the ladder and a body rotation of 180°
in the falling region.
Accordixig to the invention, this object is achieved by a laterally assisting platform support as claimed in claim ,Advantageous refinements of the invention are described in the subclaims.
L 'd 8169'~N Wd90~ti OOOZ '6Z'aeW
ess-air s«-a zo~d vs:~t oo-et-aa~
The laterally assisting platform support aGCOrding to the invex~.t~.on can be fitted retrospectively to every Conventional ladder. A standing area secured by railings is created next to the leant-to laddex d0.rectly in the falling region, and at the same time a means of securing the ladder against tilting and slipping is provided.
The invention is described in more detail below by means of an exemplary embodiment and reference to a drawing, in which 1. 0 Fig. 1 shows a laterally assisting platform support fitted to a ladder on both sides, Fig. 2 shows a ladder with a laterally assisting platform support during use on a roof, seen from the side, Fig. 3 shows a ladder with a laterally assisting platform support fitted on one side and a laterally assisting platform support folded in on one side, during use at a narrow window a0 opening, seen from the front, Fig. 4 shows a side view of a laterally assisting platform support fitted to a lean-to ladder and resting on a wall, Figs. 5, 6 and 'T show a front, side and plan view of an extended multipurpose double ladder with a fitted laterally assisting platform support as a self-supporting working p~.atfox~m.
Figs. 8 anal 9 snow a front and side view of a multipurpose double ladder with a retracted ladder and the laterally assisting platform support fitted and opened out, 8 'd 81~~'~N Wd90:ti OOOd '6Z'aeW
ess-aor s«-a eo~a ~s:~~ oo-ea-avw Fig. 10 shows a multipurpose double ladder which is completely pushed together and has a fitted, folded-in laterally assistizig platform support and folded-in supports and also a retracted and folded-in railing, and Fig. 11 shows an extended multipurpose double ladder being used as a lean-to ladder with the laterally assisting platform support opened out and having large wall running wheels, as it "moves over" obstacles on the wall.
At the two outersides of the ladder, supportir~g brackets (1) are fastened to the side rails. Displaceable arid lockable floor panels t2) are mounted on the supporting brackets (1).
One third of the length of the floor panel protrudes from the supporting brackets in the ladder direction and two thirds in the wall or roof direction. In the region of the two-thirds length of the floor panel is/are vne or more hinged struts (3) wha.ch are fastened in an articulated manner to the upper side-rail reg~.ons of the ladder and the longitudinal inner sides of the floor panels (2).
The supporting brackets (1) thus hold the f7.oor panel from the underside and the hinged stxwts from the upper side. This eli.minatee a rocking effect and achieves a stable support oz' suspension of the floor panel. In addition, with this design the floor panel can be displaced in the longitudinal direction, but at the same time can also be used safely as a support on a roo~ edge. Furthermore, an effective means of securing the ladder agaiz~st tilting and slipping has been produced. The floor panel razz be locked securely in every desired displacement position.
Cylindrical running rollers (4) are situated on the wall,side end side of the laterally assisting platform support (Fig. 1).
With known ladders, the ascent and descent from the roof, out of window openings or from other high-lying standing areas onto a leant-to ladder is not without risk. A person climbing, for example, from a flat roof onto a lean-to ladder in order to descend, has first of all to go right up to the roof edge in order to hold onto the protruding head end of the ladder ~.5 and then has to rotate through 180° so that the foot finds grip on a ladder rung. Only then can the descent begin.
The risks include the unsecured standizig on the roof edge, the holding onto the laterally slipping ladder (which then also has to be held onto) and the 1.80° body rotation in order to climb dawn the ladder backward. The risk of falling is therefore very high.
The object of the invezltion is to eliminate the dangerous points of known ladders, namely the standing on the roof edge, the lateral slipping of the ladder and a body rotation of 180°
in the falling region.
Accordixig to the invention, this object is achieved by a laterally assisting platform support as claimed in claim ,Advantageous refinements of the invention are described in the subclaims.
L 'd 8169'~N Wd90~ti OOOZ '6Z'aeW
ess-air s«-a zo~d vs:~t oo-et-aa~
The laterally assisting platform support aGCOrding to the invex~.t~.on can be fitted retrospectively to every Conventional ladder. A standing area secured by railings is created next to the leant-to laddex d0.rectly in the falling region, and at the same time a means of securing the ladder against tilting and slipping is provided.
The invention is described in more detail below by means of an exemplary embodiment and reference to a drawing, in which 1. 0 Fig. 1 shows a laterally assisting platform support fitted to a ladder on both sides, Fig. 2 shows a ladder with a laterally assisting platform support during use on a roof, seen from the side, Fig. 3 shows a ladder with a laterally assisting platform support fitted on one side and a laterally assisting platform support folded in on one side, during use at a narrow window a0 opening, seen from the front, Fig. 4 shows a side view of a laterally assisting platform support fitted to a lean-to ladder and resting on a wall, Figs. 5, 6 and 'T show a front, side and plan view of an extended multipurpose double ladder with a fitted laterally assisting platform support as a self-supporting working p~.atfox~m.
Figs. 8 anal 9 snow a front and side view of a multipurpose double ladder with a retracted ladder and the laterally assisting platform support fitted and opened out, 8 'd 81~~'~N Wd90:ti OOOd '6Z'aeW
ess-aor s«-a eo~a ~s:~~ oo-ea-avw Fig. 10 shows a multipurpose double ladder which is completely pushed together and has a fitted, folded-in laterally assistizig platform support and folded-in supports and also a retracted and folded-in railing, and Fig. 11 shows an extended multipurpose double ladder being used as a lean-to ladder with the laterally assisting platform support opened out and having large wall running wheels, as it "moves over" obstacles on the wall.
At the two outersides of the ladder, supportir~g brackets (1) are fastened to the side rails. Displaceable arid lockable floor panels t2) are mounted on the supporting brackets (1).
One third of the length of the floor panel protrudes from the supporting brackets in the ladder direction and two thirds in the wall or roof direction. In the region of the two-thirds length of the floor panel is/are vne or more hinged struts (3) wha.ch are fastened in an articulated manner to the upper side-rail reg~.ons of the ladder and the longitudinal inner sides of the floor panels (2).
The supporting brackets (1) thus hold the f7.oor panel from the underside and the hinged stxwts from the upper side. This eli.minatee a rocking effect and achieves a stable support oz' suspension of the floor panel. In addition, with this design the floor panel can be displaced in the longitudinal direction, but at the same time can also be used safely as a support on a roo~ edge. Furthermore, an effective means of securing the ladder agaiz~st tilting and slipping has been produced. The floor panel razz be locked securely in every desired displacement position.
Cylindrical running rollers (4) are situated on the wall,side end side of the laterally assisting platform support (Fig. 1).
6 'd 8169'~N Wd90~ti OOOZ '6Zw EW
ess-aer s«-a ao d rs:r~ oo-az-avw Running rollers (5) which can be adjusted in all directions are likewise fitted to the upper railing.
With the cylinder and running rollers (4 and 5), displacement along walls is made possible with the laterally assisting platform support entirely fitted. Extendable cross beams (6) which run transversely to the longitudinal direction and axe equipped with adjustable space retainers and running rollers, are likewise situated on that end side of the laterally l0 assisting platform support which faces the wall.
In addition, rode ( 7 ) or cross beams ( 7) which can be di~:placed in the longitudinal and lateral, direction are mounted on the lowex outer sides of the laterally assisting platform support, which rods or crags beams are designed such that they are bent at the lower ends and such that they can be adjusted vertically. The advantage of these arose beams (6 amd 7) of bent, a displaceable and adjustab~.e design resides in the fact that an alignment in terms of height is produced in the support region and, in addition, an adjustable support with respect to the wall is produced.
For uses in restricted regions (for example bathraom/fnTC
window), a laterally assist~.ng platform support can be folded 2S in on the ladder or puekxed back completely "on site" and locked, so that only the ladder head and one laterally assisting platform support protrude into the window 4per~.ing.
The laterally assisting p~.atform guppart for ladders is suitable ~.n particular far fire-department rescue uses, in which untrained and unsure people have to be evacuated at window openings or from roofs.
_q_ Ol 'd 8190'~N WdLO~ti OOOZ '6Z'aeW
sss-aor su-a and ~s:ti~ oo-st-avn For roofing work this appliance constitutes a safe option for gaining access from the roof to the ladder or vice versa.
ll 'd 81~~'~N WdLO~ti OOOZ '6Z'aFl'J
ess-aor s«-a and ~s:m oo-ez-avw
ess-aer s«-a ao d rs:r~ oo-az-avw Running rollers (5) which can be adjusted in all directions are likewise fitted to the upper railing.
With the cylinder and running rollers (4 and 5), displacement along walls is made possible with the laterally assisting platform support entirely fitted. Extendable cross beams (6) which run transversely to the longitudinal direction and axe equipped with adjustable space retainers and running rollers, are likewise situated on that end side of the laterally l0 assisting platform support which faces the wall.
In addition, rode ( 7 ) or cross beams ( 7) which can be di~:placed in the longitudinal and lateral, direction are mounted on the lowex outer sides of the laterally assisting platform support, which rods or crags beams are designed such that they are bent at the lower ends and such that they can be adjusted vertically. The advantage of these arose beams (6 amd 7) of bent, a displaceable and adjustab~.e design resides in the fact that an alignment in terms of height is produced in the support region and, in addition, an adjustable support with respect to the wall is produced.
For uses in restricted regions (for example bathraom/fnTC
window), a laterally assist~.ng platform support can be folded 2S in on the ladder or puekxed back completely "on site" and locked, so that only the ladder head and one laterally assisting platform support protrude into the window 4per~.ing.
The laterally assisting p~.atform guppart for ladders is suitable ~.n particular far fire-department rescue uses, in which untrained and unsure people have to be evacuated at window openings or from roofs.
_q_ Ol 'd 8190'~N WdLO~ti OOOZ '6Z'aeW
sss-aor su-a and ~s:ti~ oo-st-avn For roofing work this appliance constitutes a safe option for gaining access from the roof to the ladder or vice versa.
ll 'd 81~~'~N WdLO~ti OOOZ '6Z'aFl'J
ess-aor s«-a and ~s:m oo-ez-avw
Claims (27)
1. A laterally assisting platform support for mounting at the upper end of a ladder as an ascent and descent safety device, having a floor panel (2) which is coupled to the ladder, but is laterally fixed during use, and also having wall supports (6, 7) and wall running rollers (4, 5), with large wheels being present for moving over obstacles, characterized in that in the fitted state mounted on a ladder, the floor panel (2) is designed such that it can be displaced with respect to supporting elements mounted on the ladder, in such a manner in the longitudinal direction of the floor panel and such that it can be secured in turn in every displacement position that irrespective of the inclination arising during the particular use of the ladder leant against a horizontal roof edge, the floor panel (2) can be secured in a position in which it fits over the roof edge and is aligned essentially parallel thereto.
2. The laterally assisting platform support as claimed in claim 1, characterized in that cylindrical running rollers, steering rollers, rolling balls or large wheels are fastened to the end sides of the laterally assisting platform support.
3. The laterally assisting platform support as claimed in claim 1, characterized in that mounted on the end sides are extendable and retractable rods (6) or cross beams (6) which are equipped with adjustable space retainers and rollers (5) or cylindrical rollers (4).
4. The laterally assisting platform support ass claimed in claim 1, characterized in that cross beams (7) which can be displaced in the longitudinal and lateral direction and can be adjusted vertically are fastened to the underside or outerside, which cross beams can be bent at the lower end of the cross beam and have running rollers.
5. The laterally assisting platform support as claimed in claim 1, characterized in that one side is held by lengthwise adjustable hinged struts (3) and the opposite side rests in a displaceable and lockable or fixed manner on supporting brackets (1).
6. The laterally assisting platform support as claimed in claim 1, characterized in that the laterally assisting platform support rests an supporting brackets (1) and is supported only by the underside.
7. The laterally assisting platform support as claimed in one of claims 1, 5 or 6, characterized in that the laterally assisting platform support ie fastened to side rails and/or rungs of the ladder with Clamping devices, plug-in or hook-in devices.
8. The laterally assisting platform support as claimed in one of claims 1, 5, 6 or 7, characterized in that the laterally assisting platform support is fastened to supporting beams in a hanging manner and/or connected to the opposite laterally assisting platform support.
9. The laterally assisting platform support as claimed in claims 1 to 8, characterized by railings which can be retracted to approximately half of their height and can then be folded in onto the floor panel.
10. The laterally assisting platform support as claimed in claim 9, characterized in that the railings can be telescopically extended and retracted in the horizontal or vertical direction.
11. The laterally assisting platform support as claimed in claim 9 or 10, characterized in that at the ends the railings have individual, horizontal struts which can be retracted and extended and which can also be connected to one another.
12. The laterally assisting platform support as claimed in one of claims 1 to 11, characterized in that a peripheral rail or strip is fastened to the outer border of the floor panel as an end edge.
13. The laterally assisting platform support as claimed in one of claims 9 to 12, characterized in that rollers (5), rolling balls, cylindrical rollers or steering rollers, which can be adjusted in all directions, are fastened to the ends of the railings, and in that large wheels are fitted as a displacement aid.
14. The laterally assisting platform support as claimed in one of claims 1 to 13, characterized in that the shape of the floor panel is designed in such a manner that one end side has a smaller length than the opposite end side, so that one longitudinal side runs obliquely.
15. The laterally assisting platform support as claimed in one of Claims 1 to 14, characterized in that the laterally assisting platform support is fitted only to one side of the ladder and the other ladder side is secured to a wall support for ladders.
16. The laterally assisting platform support as claimed in one of claims 1 to 15, characterized in that the floor panel is designed such that it can be telescoped, rolled up or folded together.
17. The laterally assisting platform support as claimed in one of claims 1 to 16, characterized in that the floor panel has a solid or perforated surface, rests on a supporting frame, can be fastened to the ladder without a frame in an unsupported manner or is designed such that it can be pushed together.
18. The laterally assisting platform support as claimed in one of claims 1 to 17, characterized in that the entire laterally assisting platform support can be pulled up and locked retrospectively on the leant-to ladder by means of guiding and/or supporting rollers, which are arranged on the underside and such that they correspond to the setting angle of the ladder, running mechanisms in the form of chains and devices for protecting against sliding off, and also attached hauling-cable suspension means.
19. The laterally assisting platform support as claimed in one of claims 1 to 18, characterized in that between the two fitted laterally assisting platform supports is a foldable or displaceable hatch cover which is designed as a standing area or passage opening.
20. The laterally assisting platform support as claimed in one of claims 1 to 19, characterized in that the supporting brackets (1), floor panels (2), hinged struts (3) and railings ae individual parts which are not joined together can be fitted individually on site.
21. The laterally assisting platform support as claimed in one of claims 1 to 20, characterized in that one or both laterally assisting platform supports can be folded in or opened out.
22. The laterally assisting platform support as claimed in one of claims 1 or 5 to 9, characterized in that the lengthwise adjustable hinged struts (3) are fastened in an articulated manner to ladder rungs, the supporting brackets (1) are provided with supporting struts and can be fastened to ladder rungs with clamping devices.
23. The laterally assisting platform support as claimed in one of claims 1 to 21, characterized in that the shape of the floor panel is designed such that it is rectangular, oval, trapezoidal or in the form of a parallelogram.
24. The laterally assisting platform support as claimed in one of claims 1 to 21, characterized in that supports which are fastened in an articulated manner, can be displaced and locked in the longitudinal and lateral direction and can be extended and retracted vertically are arranged on the underside or outerside of the laterally assisting platform support, which supports are fastened to the ladder with connecting struts which can be folded in and can be pulled out telescopically.
25. The laterally assisting platform support as claimed in one of claims 9 to 13, characterized in that the railings are designed such that they can be plugged in and/or folded in.
26. The laterally assisting platform support as claimed in one of claims 5 to 25, characterized in that the supporting brackets are provided with rollers in the region of the area of support.
27. The laterally assisting platform support as claimed in one of claims 5 to 26, characterized in that the floor panel (2) is mounted rotatably and in an articulated manner on a supporting bracket (1), and the hinged strut (3) is fastened in a manner such that it can be adjusted lengthwise and laterally below or above the floor panel (2) and/or the supporting bracket (1), but is mounted in a manner such that it can be detached, or in an articulated manner on the ladder cross beam or the ladder rungs.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE29717717U DE29717717U1 (en) | 1997-10-04 | 1997-10-04 | Ladder with side auxiliary platform support |
| DE29717717.6 | 1997-10-04 | ||
| PCT/DE1998/002749 WO1999018321A1 (en) | 1997-10-04 | 1998-09-17 | Ladder with side auxiliary platform support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2305199A1 true CA2305199A1 (en) | 1999-04-15 |
Family
ID=8046854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002305199A Abandoned CA2305199A1 (en) | 1997-10-04 | 1998-09-17 | Laterally assisting platform support |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP1019610A1 (en) |
| AU (1) | AU1331699A (en) |
| CA (1) | CA2305199A1 (en) |
| CZ (1) | CZ20001191A3 (en) |
| DE (2) | DE29717717U1 (en) |
| HU (1) | HUP0003849A2 (en) |
| WO (1) | WO1999018321A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2471947A (en) * | 2009-07-16 | 2011-01-19 | Neil Ernest Baglin | Ladder platform with encircling guard rail |
| US10047559B2 (en) | 2016-09-07 | 2018-08-14 | Vare Invent AB | Platform ladder apparatus |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29822379U1 (en) * | 1998-12-02 | 1999-03-25 | Laug, Horst, 49809 Lingen | Multi-purpose wall support for ladders |
| DE20007712U1 (en) | 2000-05-01 | 2000-10-26 | Laug, Horst, 49809 Lingen | Security manager |
| DE10022006C2 (en) * | 2000-05-05 | 2001-12-13 | Horst Laug | Security manager |
| GB0105836D0 (en) * | 2001-03-09 | 2001-04-25 | Ultraframe Uk Ltd | Access ladder |
| NL1019069C2 (en) * | 2001-10-01 | 2003-04-02 | Philippus Johannes Kattouw | Ladder. |
| DE102007058761A1 (en) | 2007-12-06 | 2009-06-10 | Daimler Ag | Ladder, particularly for double ladder and multi-purpose double ladder, has two longitudinal spars, where step extends between longitudinal spars, and is formed as rungs or levels |
Family Cites Families (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE188117C (en) * | ||||
| US965712A (en) * | 1910-03-17 | 1910-07-26 | Ransom A Holdridge | Combined ladder and scaffold. |
| US1013751A (en) * | 1911-10-10 | 1912-01-02 | Thomas Francis Dougherty | Balcony for fire-ladders. |
| US1454750A (en) * | 1921-07-22 | 1923-05-08 | Flohic George Le | Adjustable ladder platform |
| US1444759A (en) * | 1922-04-13 | 1923-02-06 | Benjamin K Traylor | Ladder |
| GB268709A (en) * | 1927-01-11 | 1927-04-07 | Walter Chaloner | Improvements in or relating to attachments for ladders and the like |
| FR677501A (en) * | 1929-06-27 | 1930-03-11 | flying scaffolding fixed on all ladders | |
| US1969628A (en) * | 1933-10-31 | 1934-08-07 | Skeenes Allen | Ladder |
| US2080015A (en) * | 1936-01-30 | 1937-05-11 | Nat Tube Co | Safety device |
| DE653616C (en) * | 1936-02-21 | 1937-11-29 | Rudolf Meier | Workbench for attachment to stepladders |
| US2384939A (en) * | 1945-01-29 | 1945-09-18 | Byron C Lord | Portable ladder and adjustable platform assembly |
| US2641511A (en) * | 1950-01-26 | 1953-06-09 | Milton B Mcclure | Ladder work platform |
| US2881028A (en) * | 1957-10-11 | 1959-04-07 | James D Baird | Ladder platform |
| US3072218A (en) * | 1960-04-27 | 1963-01-08 | Peters John | Stand-off ladder bracket |
| US3318415A (en) * | 1966-03-15 | 1967-05-09 | Sr Aldis J Christie | Platform for ladders |
| US3664458A (en) * | 1971-01-20 | 1972-05-23 | Lorance E Sterns | Ladder scaffold vehicle |
| US3985203A (en) * | 1975-10-02 | 1976-10-12 | Walter Erlenbach | Ladder landing |
| FR2447453A1 (en) * | 1979-01-25 | 1980-08-22 | Tinca Jean | Working platform for single or double mobile ladders - has integral guard rail and fixing braces which are clamped to ladder rungs |
| GB2080869B (en) * | 1980-07-30 | 1984-08-15 | Smith Samuel David | Device for attachment to a ladder |
| US4754843A (en) * | 1987-10-30 | 1988-07-05 | Austin Anderson | Roller accessory for ladder |
| FR2632349A1 (en) * | 1988-06-07 | 1989-12-08 | Bougeault Andre | Working platform which can be adapted to ladders |
| GB8817923D0 (en) * | 1988-07-27 | 1988-09-01 | Thompson R | Step-ladder |
| DE19500705C2 (en) * | 1995-01-12 | 1997-03-06 | Eckhard Klein | Ladder-based work platform |
| DE29507711U1 (en) * | 1995-05-15 | 1995-08-17 | Kamal, Samy, Dipl.-Ing., 85055 Ingolstadt | Mobile scaffolding and ladder system with work platform |
| DE19723000C2 (en) | 1997-03-20 | 2001-08-09 | Horst Laug | Support for leaning ladders |
| DE29713715U1 (en) | 1997-08-01 | 1997-11-06 | Laug, Horst, 49809 Lingen | Fastening element for ladder supports |
-
1997
- 1997-10-04 DE DE29717717U patent/DE29717717U1/en not_active Expired - Lifetime
- 1997-10-17 DE DE19745978A patent/DE19745978C2/en not_active Expired - Fee Related
-
1998
- 1998-09-17 CA CA002305199A patent/CA2305199A1/en not_active Abandoned
- 1998-09-17 HU HU0003849A patent/HUP0003849A2/en unknown
- 1998-09-17 EP EP98956774A patent/EP1019610A1/en not_active Withdrawn
- 1998-09-17 CZ CZ20001191A patent/CZ20001191A3/en unknown
- 1998-09-17 WO PCT/DE1998/002749 patent/WO1999018321A1/en not_active Ceased
- 1998-09-17 AU AU13316/99A patent/AU1331699A/en not_active Abandoned
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2471947A (en) * | 2009-07-16 | 2011-01-19 | Neil Ernest Baglin | Ladder platform with encircling guard rail |
| GB2471947B (en) * | 2009-07-16 | 2014-06-11 | Easi Dec Access Systems Ltd | Ladder usage |
| US8869935B2 (en) | 2009-07-16 | 2014-10-28 | Easi-Dec Access Systems Limited | Ladder usage |
| US10047559B2 (en) | 2016-09-07 | 2018-08-14 | Vare Invent AB | Platform ladder apparatus |
| US10801262B2 (en) | 2016-09-07 | 2020-10-13 | Ståsäker Ab | Platform ladder apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| DE29717717U1 (en) | 1997-11-20 |
| DE19745978A1 (en) | 1999-04-29 |
| WO1999018321A1 (en) | 1999-04-15 |
| AU1331699A (en) | 1999-04-27 |
| DE19745978C2 (en) | 2001-06-21 |
| CZ20001191A3 (en) | 2001-12-12 |
| HUP0003849A2 (en) | 2001-03-28 |
| EP1019610A1 (en) | 2000-07-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Discontinued |