GB2556327A

GB2556327A - Universal eye bolt actuated leveller and extendable stabiliser system for ladders and small deck structures

Info

Publication number: GB2556327A
Application number: GB1614770.4A
Authority: GB
Inventors: Theobald Darchiville Martin
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-08-31
Filing date: 2016-08-31
Publication date: 2018-05-30
Also published as: GB201614770D0

Abstract

A ladder stabiliser has an upper elongate transverse channel 1 upon which the feet of a pair of ladders are placed between adjustable clamps 4 and 5. A pair of further channels 2 and Fig 2, 2 are located by and may extend and retract within channel 1. In use a ladder may be secured to the clamps via threaded eyebolts and the ladder lent against a building. Eye bolts 3 are screwed downwards to contact and displace the lower channel Fig 4 so they align with and rest firmly on the ground. Spikes Fig 4,17 may engage with the ground to prevent slippage. Locknuts may be used to secure all fastenings. A similar device may be used to secure a ladder on steps or a stair, Fig 7. A table or platform Fig 6, may have a plurality of similar adjustable devices Fig 9, 18, 19 attached to columns 26 located to the underside of the table.

Description

(54) Title of the Invention: Universal eye bolt actuated leveller and extendable stabiliser system for ladders and small deck structures

Abstract Title: Ladder levelling and stabilising device with sliding channels.

(57) A ladder stabiliser has an upper elongate transverse channel 1 upon which the feet of a pair of ladders are ξ placed between adjustable clamps 4 and 5. A pair of further channels 2 and Fig 2, 2 are located by and may extend and retract within channel 1. In use a ladder may be secured to the clamps via threaded eyebolts and the ladder lent against a building. Eye bolts 3 are screwed downwards to contact and displace the lower channel Fig 4 so they align with and rest firmly on the ground. Spikes Fig 4,17 may engage with the ground to prevent slippage.

Locknuts may be used to secure all fastenings. A similar device may be used to secure a ladder on steps or a stair, Fig 7. A table or platform Fig 6, may have a plurality of similar adjustable devices Fig 9, 18, 19 attached to _i -,- i| columns 26 located to the underside of the table. ¹ ί 2 Ί

Figure 1

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Figure 1

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Figure 4

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Figure 5

Figure 6

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Figure 7

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Figure 9

Universal eye bolt actuated leveller and extendable stabiliser system for ladders and small deck structures

There are many ladder levelling devices of one type or another and they are all well known, designed to be attached to the ladder rail at a low position near the ladder foot. The ladder levellers are used to extend the attached ladder rail and support the ladder foot while compensating for the uneven bearing surface that supports the other ladder foot to keep the ladder in the upright position.

They are also many ladder stabiliser devices which are also well known and they are utilised at the top or upper part of the ladder to help brace the ladder on a vertical bearing surface such as the wall on the side of a building.

This can mean that you may have to use two devices to have a ladder in an upright position that is truly safe to use on a sloped surface.

The present invention overcomes the need to have two devices to use a ladder truly safely, because the present invention not just levels one ladder rail but attaches to both ladder rails and levels the ladder using the universal leveller assembly with jacking eye bolt while the extendable stabiliser assembly that support the leveller assembly moves outwards on the bearing surface to support and stabilise the ladder.

Current ladder levellers cannot solely be used effectively on soft ground because of the weight of the ladder plus the ladder user on the small, narrow load bearing area of the ladder leveller base causing the ladder to sink in to the soft ground and making the ladder unsafe to use.

The present invention can be used on any type of ladder, wide or narrow, wood or metal and with different lengths and can be used more effectively, than current ladder levellers, on soft ground.

This is because the much wider and much longer and therefore much greater load bearing area of each support of the lower extendable stabiliser assembly under and which support the upper leveller assembly can prevent the weight of the ladder plus the ladder to sink into the soft ground, making the ladder more safer to use.

The optional incliner leveller can be used to support small deck structures.

If needed, the jacking eye bolt on the levellers can be actuated to position and adjust the ladder or small deck structures to the required position.

The invention will now be described with reference to the accompanying drawings in which:

Figure 1 shows a universal eye bolt actuated leveller and stabiliser, not extended, with narrow ladder.

Figure 2 shows a universal eye bolt actuated leveller and stabiliser, extended, with wide ladder.

Figure 3 shows a universal eye bolt actuated leveller and stabiliser, extended, on an incline with rubber attachments and strap to tie ladder to extendable stabiliser.

Figure 4 shows a sectional view through a universal eye bolt actuated leveller and stabiliser, extended, on an incline with serrated attachment and eye screws.

Figure 5 shows a universal eye bolt actuated leveller and stabiliser, extended, on a slope with optional incline leveller assembly and eye screws.

Figure 6 shows a part sectional view of a universal eye bolt actuated leveller and stabiliser, extended, on a slope with optional incline leveller assembly.

Figure 7 shows a universal eye bolt actuated leveller and stabiliser primary support member in a vertical position with clamp brackets rotated adjusted and attached to the side and back of the ladder vertical rail.

Figure 8 shows incline levellers with temporary legs for supporting a small deck structure.

Figure 9 shows a detail of a single incline leveller supporting a temporary leg that share the supporting of a small deck structure.

In figure 1, the universal eye bolt actuated leveller and stabiliser comprised of an upper leveller assembly with primary support member 1 that is maintained in a horizontal position to the lower secondary support members 2 by actuated jacking eyebolt 3 to the primary support member 1 so that the threaded end of the eye bolt 3 is in contact with the lower support assembly extendable stabiliser secondary support member 2 inner face, when the outer face is at rest on an inclined or sloped surface.

Eye bolts can be actuated using a suitable sized screwdriver or metal rod.

The primary support member 1 with detachable, adjustable and rotatable clamp support brackets 4, attached to adjustable clamp brackets 5 by actuated eye bolts 6 in which each ladder rail can be attached to the adjustable clamp bracket 5 by actuated eye bolt 7. The clamp support brackets 4 are then secured in the required position by actuated eye bolts 8 to the primary support member 1 which also supports the secondary support member by actuated eye bolts 11.

In figure 2, the lower support assembly extendable stabilisers comprises secondary support members 2 which can slide outwards to the primary support member 1 held by lock-release attachments 9 with actuated eye bolt 11 to increase the effective length of the ladder leveller.

In figure 3, the universal eye bolt actuated leveller and stabiliser secondary support members 2 can have each a non-slip rubber attachment 12 and can support and secure the ladder with rope or ratchet strap to each ladder rail rung and then at attachment 13 with welded nut 14 and through an actuated eye bolt 15 at the upper side of each secondary support member 2.

In figure 4, the sectional view shows the lower extendable stabiliser assemblies of the universal eye bolt actuated leveller and stabiliser secondary support member 2 having a serrated or spiked attachment 16 to prevent or restrict movement when attached to the upper ladder leveller assembly primary support member 1 by lock-release attachments 9 with welded nut 10 with actuated eye bolt 11 and can be prevented from movement by driving eye screws 17 through holes 18 at lower part of the secondary support member 2 and secured to the ground.

In figure 5, the universal eye bolt actuated leveller and stabiliser with primary support member 1 and detachable, adjustable and rotatable clamp support brackets 4, attached to adjustable clamp brackets 5 and maintained horizontal by actuated jacking eyebolt 3 against extendable stabiliser with secondary support members 2, can be supported by the incline leveller upper support member 19 in relation to the incliner leveller lower support member 20 about pivot bolts 21, by the actuated jacking eye bolt 22, while secure to the ground by driving eye screws 24 through holes 25.

In figure 6, the part sectional view shows the incline leveller assembly which comprises of an upper support member 19 that can be inclined against the lower support member 20 by the actuated jacking eye bolt 22, in welded nut 23, with threaded end against the upper face of the incliner leveller lower support member 20.

The lower face of the incliner lower support member 20 rest on an extreme sloped surface and prevented from movement, and secure to the ground by driving eye screws 24 through holes 25 in the incliner lower support member 20.

In figure 7, the primary support member 1 of the universal eye bolt actuated leveller and stabiliser can be located in the vertical position with rotated clamp support brackets 4, attached to adjustable clamp brackets 5 by actuated eye bolts 6 are adjusted and attached by actuated eye bolts 7 to the side and back of the ladder vertical rail. The primary support member 1 with swivel end foot attachment 26 is attached to one ladder rail only which rest on a lower step, while the other ladder rail rest on a higher step of the stairs.

In figure 8, the incline leveller upper support member 19 position is adjusted in relation to the incliner leveller lower support member 20, about pivot bolts 21, by the actuated jacking eye bolt 22 when supporting the temporary legs 26, 27, 28 and 29 and are each raised to achieve the structure correct horizontal level or pitch to slope for drainage where required, and when the permanent vertical supports legs 30, 31, 32 and 33 are in place, the temporary legs 26, 27, 28 and 29 are removed.

In figure 9, the incliner leveller upper support member 19 position is adjusted in relation to the incline leveller lower support member 20, about pivot bolts 21, by the actuated jacking eye bolt 20 and secure to the ground by driving eye screws 24 through holes 25, when supporting the temporary leg 29 which is raised to achieve the structure correct horizontal level at the required location. When the permanent vertical support leg 33 is in place, the incliner leveller and temporary leg 29 are removed.

Claims

1. A universal eye bolt actuated leveller and extendable stabiliser system for ladders and small deck structures that constitutes an upper leveller assembly with clamp support bracket assembly and clamp bracket assembly, a plurality of lower extendable stabiliser assemblies together with optional eye bolt actuated incline leveller assembly; comprising a primary support member with eye bolt locating holes and holes with welded nuts to the underside of said primary support member for positioning adjustable, detachable and rotatable clamp bracket members that supports the adjustable clamp member and can enable the attachment of ladder lower rail base or feet and also comprising of a plurality of secondary support members that move laterally and outwards and parallel to and can be attached by lock-release members to locating holes with welded nut with eye bolts to primary support member; wherein said primary support member is maintained in horizontal position, before the ladder is attached and or after it is attached, by actuated levelling eye bolts against the stationery secondary support member inner face with outer face in contact and on a sloped or inclined load bearing surface and also wherein said primary support member with said adjustable clamp members and said rotatable bracket members and said extendable secondary support members with said optional incline leveller assembly attached together to become said universal eye bolt actuated leveller and extendable stabiliser system for ladders and small deck structures, resulting in the increased effective span or distance between ladder vertical rails and increased effective bearing surface area of the ladder rail feet and therefore greatly increasing the vertical stability of the attached ladder.

2. A universal eye bolt actuated leveller and extendable stabiliser system for ladders and small deck structures as set forth in claim 1 wherein the primary support member can be located in the horizontal position and can also be located in the vertical position with clamp brackets members rotated, adjusted and attached to the side and back of one ladder vertical rail at the required position on the primary support member with a minimum 15 degree slopped end supported on a lower step of the stairs in the upright position with the other ladder rail is supported on a upper step of the stairs.

3. A universal eye bolt actuated leveller and extendable stabiliser system for ladders and small deck structures as set forth in claim 1 wherein the primary support member can be maintained in a horizontal position against the location of the secondary support member at a sloped or inclined angle by turning and adjusting the levelling eyebolt located at the outer end of the primary support member, resulting in pressing the threaded end of the eye bolt against the inner surface of the secondary support member until the levelled position is found and secured with lock nut when confirmed by human eye or by using a level gauge before the ladder is mounted, or when the ladder is attached, by the clamp bracket members to the primary supported member.

4. A universal eye bolt actuated leveller and extendable stabiliser system for ladders and small deck structures as set forth in claim 1 wherein a plurality of primary support members can be supported upon a plurality of secondary support members and said plurality of primary support members can be positioned on said plurality of secondary support members in order to support a plurality of ladders of different distances between vertical rails and ladder feet.

5. A universal eye bolt actuated leveller and extendable stabiliser system for ladders and small deck structures as set forth in claim 1 wherein the adjustable, detachable and rotatable clamp bracket members with threaded eye bolts and nuts can be fitted or rotated and fixed into the clamp bracket positioning holes and attached by the eye bolts of the primary support member at the required locations in order to attach the ladders by tightening by hand, the horizontal eye bolts and lock nuts on opposite side of each clamp bracket member and then using a suitable sized screw driver or metal rod in order to finally press the clamp pads against each foot and firmly secure the supported ladder to the clamp bracket members.

6. A universal eye bolt actuated leveller and extendable stabiliser system for ladders and small deck structures as set forth in claim 1 wherein the adjustable, detachable and rotatable clamp bracket members can be placed in the outer positioning holes for attaching wide ladders or can be placed in the inner positioning holes to attach narrow width ladders or can be rotated and used in a combined arrangement to attached a plurality of ladders with different widths.

7. A universal eye bolt actuated leveller and extendable stabiliser system for ladders and small deck structures as set forth in claim 1 wherein the adjustable, detachable and rotatable clamp bracket members can use grip pads of different sizes and widths and material such as rubber to protect the outer surface of supported ladders and grip pads that can hold anti-slip safety shoe/feet and wheels of moveable ladders to grip and support the ladder.

8. A universal eye bolt actuated leveller and extendable stabiliser system for ladders and small deck structures as set forth in claim 1 wherein the secondary support member can be supported from the primary support member by lock-release members, loosen to allow free movement and positioning of the secondary support member and then tightening of by lock-release members eye bolts to secure said member in final position by lock nuts in order to support the primary support member which also supports the adjustable clamp members of which the ladder is also attached.

9. A universal eye bolt actuated leveller and extendable stabiliser system for ladders and small deck structures as set forth in claim 1 wherein a plurality of incline levellers can be used for temporary levelling small deck structures by placing temporary vertical support legs, each leg supported on said incline leveller and adjusting each of said incline leveller to achieve the structure required horizontal level or pitch to slope for drainage where required and then secure the permanent support legs into final locations under the deck or structure after which the temporary vertical support legs and said incliner levellers are removed.

10. A universal eye bolt actuated leveller and extendable stabiliser system for ladders and small deck structures as set forth in claim 1 wherein the secondary support member can have an eye bolt attachment at the end of the said member that can be used to attach a rope or ratchet strap through the eye and around the rung and each ladder vertical rail and tighten to further secure the ladder to the primary support member and extendable secondary support member.

11. A universal eye bolt actuated leveller and extendable stabiliser system for ladders and small deck structures as set forth in claim 1 wherein the secondary support members can have holes in the web of the secondary support member where eye nails can be driven through and into the ground to further secure the secondary support member and restrict the movement of the ladder leveller on grass and other permeable outdoor surfaces and said eye nail can be finally removed with the use of a suitable sized screw driver through the eye of the nail and pulled out.

12. A universal eye bolt actuated leveller and extendable stabiliser system for ladders and small deck structures as set forth in claim 1 wherein the secondary support member can have a serrated or spiked member that can be temporarily fitted to said secondary support member to prevent or restrict movement on outdoor surfaces such as grass and other permeable outdoor surfaces.

13. A universal eye bolt actuated leveller and extendable stabiliser system for ladders and small deck structures as set forth in claim 1 wherein the secondary support member can have a non-slip rubber member that can be temporarily connected to said secondary support member to prevent or restrict the movement of the member on low friction indoor surfaces.

14. A universal eye bolt actuated leveller and extendable stabiliser system for ladders and small deck structures as set forth in claim 1 wherein the secondary support member can be supported by an add-on incline leveller assembly which can have a serrated or spiked member that can be temporarily fitted to said optional incline leveller assembly to prevent or restrict movement on sloped or inclined outdoor surfaces such as grass and other permeable outdoor surfaces.

15. A universal eye bolt actuated leveller and extendable stabiliser system for ladders and small deck structures as set forth in claim 1 wherein the secondary support member can be supported by an incline leveller assembly that can have holes in the web of the lower support member where eye nails can be driven through and into the ground to further secure and restrict the movement of the incline leveller assembly on grass and other permeable outdoor surfaces and said eye nails can be finally removed with the use of a suitable sized screw driver through the eye of each nail and pulled out.

GB1614770.4

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