EP2317063B1 - Device for ladder stabilisation and roof gutter protection - Google Patents

Abstract

The device has lower stabilization devices (3, 3') actuated by control units (4, 4') by an assembly composed of control rods (15, 15') and a flexible cylindrical baffle plate (18). The plate is in contact with an arm (12) when an user triggers the control unit towards outside for causing rotation of the control rods and the control units around an axle (19) so as to allow the stabilization devices to pivot around the axle and to have contact with a roof or one of studs to adapt to different thicknesses of the roof.

Description

The present invention aims to provide improvements to existing devices that are intended to improve the stability and anti-slip of the ladder against the roof.

In many cases, the user has to go to a roof using an access ladder. To work safely the user must first secure this ladder to the roof.

A second objective of the user is to avoid damaging the roof sewer system often flexible or fragile material such as zinc, aluminum or plastic.

Our ladder stabilizer device ensures that the roof is secured to the roof and this sewer protection.

There is a French patent n ° 2898934, GAUTHIER Michel , which has such a system but which, on the one hand does not adapt to the irregularities of the roof and on the other hand has a locking system deported down which requires the user to mount two systems on its scale . In 2004 203 632 B2 describes a scale stabilizing device according to the preamble of claim 1.

The model described below is composed of a superior stabilization means that will come on the roof positioning itself above the gutter and thus avoid lateral sliding during the rise of the user.

A second lower stabilization means will come, through two independent controls manipulated by the user, to position and tighten under the roof so as to avoid tilting the ladder back during the descent from the roof to the ladder.

Both of these means are dimensioned and pivoted so as to prevent the ladder from coming into contact with the gutter during use.

These two means are part of a single product that will be installed on all types of ladders with hollow bars using the free space inside each bar allowing a very fast assembly to the height desired by the user.

• La figure 1 présente le produit en perspective
• La figure 2 présente le produit vu du dessus du dispositif de stabilisation supérieur
• La figure 3 présente le dispositif en serrage sur un toit positionné sur une échelle
• La figure 4 présente le produit en perspective avec un écorché présentant le mécanisme intérieur qui permet la mise en place du dispositif de stabilisation inférieur.
• La figure 5 présente le produit en serrage sur un toit vu de dessous.
• Les figures 6 et 7 présentent le mécanisme de cliquet.
• La figure 8 présente le produit en position ouverte (desserré).
• La figure 9 présente la liaison à l'échelle.
• La figure 10 présente la mise en place d'un verrou sur l'échelle.

The present invention is illustrated below with the aid of an exemplary embodiment in the accompanying figures.

• The figure 1 presents the product in perspective
• The figure 2 presents the product seen from above the upper stabilizer
• The figure 3 presents the device in clamping on a roof positioned on a ladder
• The figure 4 presents the product in perspective with a skinned presenting the internal mechanism that allows the establishment of the lower stabilization device.
• The figure 5 presents the product in tightening on a roof seen from below.
• The figures 6 and 7 present the ratchet mechanism.
• The figure 8 presents the product in the open (loosened) position.
• The figure 9 shows the link to scale.
• The figure 10 presents the setting up of a lock on the scale.

According to figure 1 the product is composed of a frame (1) on which the upper stabilizing device (2) is fixed. On the frame (1) pivot two independent stabilizing devices (3) (3 ') symmetrical and independent operated by two controls (4) (4'). Four sliding and pivoting locks (5) (5 ') (5 ") (5"') integral with the frame (1) serve to connect the ladder.

According to figures 1 and 2 the upper stabilizing device (2) is composed of two integral arms (6) (6 ') and a support bar (7), on which is fixed a section of flexible ribbed material (8) for protecting roofing materials and by its friction, limit the lateral movements of the device relative to the roof.

According to figures 1 and 3 the device is assembled on the ladder and supported on the roof (11). The four sliding and pivoting bolts (5) (5 ') (5 ") (5"') are introduced into the recesses of the bars (28) of the ladder (9). The controls (4) (4 ') are raised to allow the lower stabilizers (3) (3') to pinch the roof (11) and one of its rafters (10).

According to figures 3 , 4 and 5 the lower stabilizers (3) (3 ') are formed for each arm side (12) (12') pivotally relative to the frame (1) via pins (19) (19 '). At the end of the arms (12) (12 ') support pieces (13) (13') integral with the arms (12) (12 ') and covered with flexible ribbed pieces (14) (14') making the system non-slip and allowing it to adapt to any form of roofing. The arms (12) (12 ') are respectively driven by the controls (4) (4') through identical sets each composed of two racks (15) (15 ') similar, a flexible cylindrical pad (18), all linked to the control (4) via a riveted axis system (21) (21 ') (21 ") (21"'). The user pulling the control (4) towards the outside of the building will rotate the racks assembly (15) (15 ') and control (4) about the axis (19) and the flexible cylindrical buffer ( 18) will thus come into contact with the arm (12) of the device lower stabilizer (3), rotate the latter about the axis (19) and allow the flexible ribbed piece (14) to come into contact with the underside of the roof (11) or one of its rafters (10). ). A pawl (16) is in contact with the two racks (15) (15 ') preventing them from returning to their initial state when the user no longer acts on the control (4) thus allowing pinching of the roof and therefore securing the product to the roof (11).

According to figures 3 , 4 and 6 the pawl (16) pivots about the axis (22) then pressing against the teeth of the racks (15) (15 ') by the action of a spring (23). The pawl (16), in the closed position, is in contact with the two racks (15) (15 ') and, thanks to the action of the flexible cylindrical pad (18), is always in contact with a tooth of the assembly consisting of two racks (15) (15 ') allowing the device to tighten various roof thicknesses (11) without play, because the flexible cylindrical pad (18) crushes if the pawl (16) comes between two teeth racks (15) (15 ').

According to figures 4 , 5 , 7 and 8 to allow the user at the end of his task to undo his lashing the roof (11) it must press the operating plates (17) (17 ') symmetrical. The operating plate (17) is pivoted relative to the frame (1) via an axis (24). It drives the pawl (16) via its protrusion (25) by compressing the spring (23), thus releasing the racks (15) (15 '). The lower stabilizer (3) is released by its own weight combined with the position of the shaft (19). The user can then remove the ladder from its support on the roof (11).

According to figures 1 , 9 and 10 the four sliding and pivoting bolts (5) (5 ') (5 ") (5"') are assembled in pairs (5 ') (5 ") and (5) (5"'). They are connected by an elastic means (20) in tension via a hook (29) and its opposite hook. These four sliding and pivoting bolts (5) (5 ') (5 ") (5"') are each composed of two tubes (26) (26 ') and a plate (27).

Still according to figures 1 , 9 and 10 for setting on the ladder, the user pulls the four sliding and pivoting bolts (5) (5 ') (5 ") (5"') successively; in doing so, it stretches the resilient means (20), rotating the sliding and pivoting bolt (5) relative to the frame (1) via the tube (26) to position itself in the axis of the hollow of the bar (28). the scale (9). It can then release the sliding and pivoting latch (5) allowing the tube (26 ') to come into the hollow of the bar (28) thanks to the tensile force generated by the elastic means (20).

Our invention makes it possible, thanks to the pivoting of these two pairs of sliding and pivoting bolts (5) (5 "') and (5') (5"), to be compatible between different bars depending on the type of l 'ladder.

Claims (5)

1. A device for ladder stabilisation and roof gutter protection made up of an upper stabilisation device (2) integral with a frame (1), itself made up of two arms (6) (6') and a support bar (7) integral with each other, to which is fastened a section made of soft ribbed material (8) for protecting the roofing material and limiting the sideways movements of the device in relation with a roof (11), characterised in that two symmetrical and independent lower stabilisation devices (3) (3') turn on the frame (1), wherein the lower stabilisation devices (3) (3') are made up of arms (12) (12'), with support pieces (13) (13') at their ends, and are activated by two controls (4) (4') through identical assemblies, each made up of two similar racks (15) (15') and a soft cylindrical buffer (18), the whole being linked to the control (4) via a riveted axis system (21) (21') (21") (21"'), the soft cylindrical buffer (18) comes into contact with the arm (12) when the user pulls the control (4) outward, thus making both racks (15) (15') and the control (4) rotate around the axis (19), allowing the lower stabilisation devices (3) (3') to turn in turn around the axis (19) and come in contact with the roof (11) or one of the rafters (10) to adapt to different roof thicknesses and be properly supported and effectively clamped.
2. A device for ladder stabilisation and roof gutter protection according to claim 1 characterised in that a ratchet (16) is in contact with the two racks (15) (15'), and thanks to the action of the soft cylindrical buffer (18), in the closed position, is always in contact with a tooth of the assembly made up of the two racks (15) (15') allowing the device to clamp different roof thicknesses (11) with no gap, because the soft cylindrical buffer (18) is pressed if the ratchet (16) comes between two teeth of the racks (15) (15').
3. A device for ladder stabilisation and roof gutter protection according to claim 1 characterised in that the support pieces (13) (13') are covered by soft ribbed pieces (14) (14'), thus making the device non-slipping and enabling it to adapt to different shapes of roofs.
4. A device for ladder stabilisation and roof gutter protection according to claims 1 and 2 characterised in that at the end of the task, the user must press the symmetrical control plates (17) (17'), which are pivotally connected to the frame (1), via an axis (24) thus driving the ratchet (16) via its protrusion (25), by compressing the spring (23), releasing the racks (15) (15'), then the lower stabilisation system (3), by the combined action of releasing the two racks (15) (15'), of its own weight and the position of the axis (19), thus allowing the user to remove the ladder from the roof safely, with no hazardous manoeuvre.
5. A device for ladder stabilisation and roof gutter protection according to claim 1 characterised in that four sliding and turning locks (5) (5') (5") (5"'), integral with the frame (1), made up of tubes (26) (26') and a flat (27), assembled in pairs (5) (5"') and (5') (5"), act as the connection with the ladder (9) by the insertion of the four sliding and turning locks (5) (5') (5") (5"') in the hollows of the rungs (28) of the ladder (9); the pairs of sliding and turning locks (5) (5"') and (5') (5") are connected by elastic tensioning means (20) via a hook (29) and its opposite hook to allow, when the user successively pulls the four sliding and turning locks (5) (5') (5") (5"'), to tension the elastic means (20), making the sliding and turning lock (5) turn in relation with the frame (1) via the tube (26) and be positioned in line with the hollow of the rung (28) of the ladder (9); at the end of that action, the user releases the sliding and turning lock (5) and allows the tube (26') to move into the hollow of the rung (28) thanks to the pulling force generated by the elastic means (20), allowing fast and safe assembly with ladders with different rung distances.

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