FR3072317B1 - TOOL FOR CUTTING SLATE PLATES TO A COLLECTOR OF WASTE - Google Patents

Abstract

The invention proposes a cutting tool of a slate plate usable on a roof, safe and economical. The cutting tool according to the invention comprises: • a cutting table (110) carrying a cutting slot (111) above which is arranged a guide rail (120), • a cutting carriage (130) slidably mounted along the guide rail; • a cut waste collection chute (140) arranged under the cutting table (110), the collection chute comprising a bottom (141), two side walls (142) and two end walls (143), in which at least one of the end walls (143) of the trough is pierced by an evacuation window (144) and further comprises a trap (150). movable mounting between a collection position in which the hatch (150) closes the evacuation window (144) and a dump position in which the hatch (150) clears the evacuation window (144).

Description

TOOL FOR CUTTING SLATE PLATES TO WASTE COLLECTOR. The invention relates to a slate cutting tool or plates of similar material, in particular transportable and usable on a roof.

In the field of home coverage, several materials can be used: zinc, tile or stone, such as slate. Other synthetic materials can be used to mimic the appearance of the aforementioned materials. For example, fiber cement plates can be mentioned as a slate-like material.

In the field of slate roofing, there are many tools specific to this material and intended to cut the plates, to cut them into a chosen curved shape, to drill and fix them.

In general, the roofer cuts the slate slabs on the floor to the desired overall size, then mounts them on the roof to be covered and scrapes them finely with special pliers or hammers. He then pierces them (also called "punching") and fixes them by hooks on the roof battens. The latter are longitudinal cleats, usually made of wood, fixed transversely to the roof structure (usually rafters) and perpendicular to the slope of the roof.

Once the slates are installed, either the roofer is detached from the fall protection system and comes down from the roof to prepare new slates, or he is assisted by an assistant who can install new pre-cut slates to save time and avoid him. to come off. In the latter case, the labor costs are much higher. One of the best known slate cutting tools or fibro-cement slabs is the CA600 model from JOUANEL. This tool comprises a frame delimiting a cutting table carrying a cutting slot above which is arranged a guide rail. A carriage with a cutting disc engaged in the slot and a pull handle is slidably mounted on the rail. A first end of the rail has a reversible retainer (usually a ball screw) of the carriage and the other end has a shock absorbing buffer end of stroke. The tool also includes a support table preferably provided with squaring abutments. The support table is coplanar with the cutting table to support a portion of the plate during cutting. It can be attached to the right or left of the cutting table depending on whether the operator is left-handed or right-handed.

The latter then places the cutting plate on the cutting table and the support table. Then he unlocks the retainer and then pulls the cart towards him to cut the plate. Finally, it puts the cart back to the first end and locks it to prevent it from slipping by itself and hurts the user.

This tool is very heavy (more than 22 kg) and is not transportable on the roof by one person.

The cutting waste discharged through the slot falls directly onto the ground which must be swept thereafter.

To be moved, the tool comprises a gripping handle attached to the body of the tool in a plane perpendicular to the cutting plane. It also includes a device for locking the carriage at one end of the rail during transport to prevent it from rolling along the guide and creates a dangerous imbalance due to its weight while the user holds the handle in one or two hands.

To overcome these problems, it has already been proposed a similar design tool, much lighter, and intended to be mounted and used directly on the roof, called "Mini Cad" company DIMOS.

This tool includes a frame raised by toothed feet and a cut waste collection chute surmounted by the cutting table carrying the cutting slot. The collection chute is necessary to prevent the waste from damaging the roof. The tool also includes a guide rail, a cutting carriage, and a support table to be fixed to the right or left of the cutting table according to whether the user is right-handed or left-handed. The spacing of the feet is chosen so that they can be inserted between two battens in order to keep the tool on the roof and prevent it from slipping. Once the surface near the user is covered with slates, the latter slightly raises the tool to release the teeth of the batt and slides the tool near a new area to cover.

If this tool has the advantage of allowing slate cutting on the roof, that is to say on the place of use of the slates, it still has many disadvantages.

The presence of the collection chute between the cutting table and the feet makes the tool very unstable and the latter systematically tilts when the user leans on the support table. Tipping may be limited if the teeth of the feet bite strongly into the batt, but the latter is then deteriorated.

The collection chute comprises a bottom mounted to pivot vertically, so that to empty the chute, it is necessary to tilt the tool to the side and open the bottom of the chute. It is necessary to shake the tool thus opened to remove the waste, but given its size and weight in this position, it is common for the user to drop it. Moreover, it is common that the bottom of the chute is detached during transport, which empties the chute to an undesired location and may injure the user.

To be transported on the roof, this tool comprises on the one hand a transport strap attached to the frame and on the other hand a reversible locking device of the carriage at one end of the rail to prevent the latter from rolling along the guide during the trip. Thanks to the strap, the user can use both hands to get on the roof. Nevertheless, the tool is in a strong imbalance of fact of the locking arrangement and the tool weighs heavily on the shoulder of the user during the climb on the roof. Because of this imbalance, the tool can not be hoisted on the roof with a rope, as this may damage the tool and / or the house. The object of the present invention is to provide a slate cutting tool for use on a roof, lightweight, practical, safe and economical.

By practice we mean that the tool must be easy to handle, without the need for significant effort.

For sure, we mean that the tool must be stable (no tipping or imbalance), both in use and transport.

According to the invention, the tool comprises a system for collecting and removing waste that does not require tilting of the tool while being lockable automatically and easily during transport. The tool can therefore be easily used on a roof without the risk that the cutting waste will damage the roof and without risk that the tool will be emptied during transport.

Thus, the subject of the invention is a cutting tool for a slate plate or similar material comprising: a cutting table carrying a cutting slot over which is arranged a guide rail; cutter slidably mounted along the guide rail and provided with a cutting disk engaged in the slot and a gripping handle; a chute for collecting cutting waste arranged under the cutting table, the collection chute comprising a bottom, two side walls and two end walls,

According to the invention, at least one of the end walls of the chute is pierced with a waste disposal window and further comprises a trapdoor mounted movably between a collection position in which the trapdoor closes the window. evacuation and a dump position in which the hatch clears the window.

According to other embodiments: • the hatch can be slidably mounted parallel to the end wall that carries it; • the hatch can be pivotally mounted on the end wall that carries it; The hatch and the end wall which carries it can each be pierced with a safety hole arranged such that in the collection position, the safety hole of the hatch and the security hole of the wall of end are facing each other; The cutting tool may further comprise a safety member having an annular opening part reversibly able to pass through the security holes of the trapdoor and the end wall in the collection position and to prohibit a movement of the hatch relative to the end wall; • the safety member having a reversibly annular opening portion can be selected from a broken ring, a carabiner, a shackle and a quick link; • the cutting tool may comprise a carrying strap provided at each end of a safety member to be fixed in the security holes of the hatch (s) and the end wall or walls; and / or • Ια or each hatch and the or each end wall can be pierced each of a skylight, the dormers being arranged such that in the collection position, the skylight of a hatch and the skylight of the end wall carrying the hatch are facing each other to form a handling handle. Other features of the invention will be set forth in the detailed description below, made with reference to the accompanying drawings, which show, respectively: FIG. 1, a schematic perspective view of a preferred embodiment of a tool cutting device according to the invention in which the hatch of the waste collector is closed, in the closed position of waste collection; Figure 2 is a schematic perspective view of the embodiment of Figure 1 wherein the hatch of the waste collector is in the open position of emptying waste; and Figure 3 is a schematic perspective view of a partial enlargement of Figure 1 at one end of the tool comprising a safety member locking the hatch in the closed position.

Figure 1 illustrates an embodiment of a slate slab cutting tool, where similar material, according to the invention. The tool 100 is positioned between two battens A in the position of use.

It comprises a cutting table 1 10 carrying a slot 1 January 1 above which is arranged a guide rail 120. In this embodiment, the guide rail is constituted by two L-shaped profiles 1 21 (also called " angle ") arranged opposite one another and at a distance from one another to provide a passage for a cutting carriage 130 slidably mounted along the guide rail 120.

The cutting carriage 130 comprises a gripping handle January 31 fixed to a housing 1 32. The latter protects a cutting disc 1 33 engaged in the cutting slot January 1 and rotatably mounted in the housing by a shaft 1 34.

The casing comprises bearings (not visible in the figure) arranged above and below the horizontal tracks 122 of the angles 121 of the guide rail. The cutting tool 100 according to the invention also comprises a chute 140 for collecting cutting waste. This chute 140 is arranged under the cutting table 1 10 to collect cutting waste falling through the slot 111 of the cutting table January 1.

The trough 140 comprises a bottom 141, two side walls 142 and two end walls 143.

Each end wall 143 is extended, below the level of the bottom 141 of the chute 1 40 by feet 1 48 which allow the tool to abut against one of the battens A roof. Preferably, the feet 148 have teeth 1 49 directed towards the center of the tool so as to ensure better retention of the tool against the battens A by the simple weight of the tool 100 itself.

According to the invention, at least one of the end walls 143 is pierced with a waste disposal window 1 44. A hatch 1 50 is associated with the end wall 143 pierced by the window 144 and is mounted movable between a collection position in which the hatch 150 closes the evacuation window 1 44, and a dump position in which the hatch 150 clears the window to let the waste.

In the illustrated embodiment, the hatch 150 is slidably mounted parallel to the end wall 143 which carries it. Preferably, the hatch 150 is arranged between the end wall 143 and the brackets 121 so that it is held in a sliding position by the horizontal tracks 122.

Advantageously, the hatch 150 and the end wall 143 which carries it are each pierced with a safety hole, respectively 151 and 145. These safety holes 145 and 151 are arranged such that in the collection position. , the safety hole 1 45 of the end wall 1 43 and the safety hole 151 of the hatch 150 are opposite one another.

This arrangement makes it possible to thread into these two holes 1 45 - 151 facing each other an annular part that can be opened reversibly from a safety member 1 60 (see FIG. 3). In this way, in the collection position, that is to say when the hatch 1 50 occults the window 1 44, the safety member prohibits the relative movement of the hatch 150 relative to the end wall 143 The arrangement according to the invention therefore makes it possible not only to easily evacuate the waste by tilting the tool 100 when the hatch 150 is open while providing a locking system of the hatch in the closed position, simple, economical and very effective . The safety member 160 illustrated in Figure 3 is a carabiner but it is also possible to choose a broken ring, a shackle, a quick link, or any other device for inserting firmly into the holes 145 and 151.

Preferably, the safety member is arranged at one end of a strap 161 for carrying the tool.

To ensure great versatility of the tool, each end wall of the chute 140 is provided with a hatch 150, a window 144, a hole 145 and a hole 151. In this way, it It is possible to dispose of the waste regardless of the positioning of the tool 1 00 and it is also possible to use a strap 1 61 provided at both ends with a carabiner type safety member to block the doors 150 on the end walls 143 in the collection position.

In an advantageous embodiment, the or each hatch 150 and the or each end wall 143 is / are each pierced by a skylight, respectively 1 52 and 1 46. The skylights 1 46-1 52 are arranged in such a way in the collection position, the skylight 152 of a hatch 150 and the skylight 146 of the end wall 143 are opposite one another and constitute a handling handle.

This handle has a dual function: on the one hand it allows to grasp the tool 100 at each end with one hand to move it, and secondly it allows to enter the hatch 1 50 and slide it upwards for it releases the window 1 44 of the end wall 1 43 and that the user can empty the waste collection chute. The illustrated arrangement is particularly advantageous since it allows to empty the chute without having to completely return the tool and it is simple and economical.

In a non-illustrated embodiment, the hatch 150 may be pivotally mounted on the end wall which carries it. In this case, there will be provided security holes on the pivoting hatch and on the end wall to ensure the maintenance of the hatch against the wall by a carabiner 1 60 or any other safety member when carrying the tool with a strap 161.

Claims (8)

A cutting tool (100) of a slate plate or similar material comprising: a cutting table (1 10) carrying a cutting slot (111) above which is arranged a guide rail (1 20), • a cutting carriage (1 30) slidably mounted along the guide rail and provided with a cutting disc (1 33) engaged in the slot and a handle (131), • a chute (140) for collecting cutting waste arranged under the cutting table (1 10), the collection chute comprising a bottom (141), two side walls (142) and two end walls (143), characterized in that at least one of the end walls (143) of the trough is pierced by a discharge window (144) waste and further comprises a trap (150) mounted movably between a collection position in which the hatch (150) closes the evacuation window (144) and a dump position in which the hatch (150) releases the evacuation window (1). 44). 2. Cutting tool according to claim 1, wherein the flap (150) is slidably mounted parallel to the end wall (143) which carries it. 3. Cutting tool according to claim 1, wherein the hatch (150) is pivotally mounted on the end wall which carries it. 4. Cutting tool according to any one of claims 1 to 3, wherein the door (1 50) and the end wall (1 43) which carries it are each pierced with a safety hole (1 45- 1 51) arranged such that in the collection position, the safety hole (151) of the hatch (150) and the safety hole (145) of the end wall (143) are facing one another. the other. 5. Cutting tool according to claim 4, further comprising a safety member (160) having an annular opening portion reversibly able to pass through the safety holes (145-151) of the hatch (150) and the end wall (143) in the collection position and to prohibit a movement of the hatch relative to the end wall. 6. Cutting tool according to claim 5, wherein the safety member (160) having a reversibly openable annular portion is selected from a broken ring, a carabiner, a shackle and a quick link. 7. Cutting tool according to claim 5 or 6, comprising a carrying strap (161) provided at each end with a safety member (1 60) to be fixed in the safety holes (145-151) of the or hatches (s) and the end wall (s). 8. Cutting tool according to any one of claims 1 to 7, wherein the or each hatch (150) and the or each end wall (143) are each pierced by a skylight (146-152), the skylights being arranged such that in the collecting position, the skylight (152) of a hatch (150) and the skylight (1 46) of the end wall (1 43) carrying the hatch (1 50) are facing each other to constitute a handling handle.