FR3085587A1 - CONSTRUCTION VACUUM DEVICE, RELATED METHOD AND SYSTEM - Google Patents

Abstract

The invention relates to a vacuum cleaner device comprising - a suction opening structure (2), - a casing (3), preferably mobile, associated with the suction opening structure (2), - a discharge line (5), and - a retention bag (6), characterized in that the casing (3) comprises a suction and blowing mechanism (7) associated with the discharge line (5) ending with the retention bag (6) external to the casing (3), the bag (6) being impermeable to debris and / or dust. The invention further relates to a corresponding method and system.

Description

SITE VACUUM DEVICE. ASSOCIATED METHOD AND SYSTEM

The present invention relates to the field of vacuum cleaners, in particular site vacuum cleaners or for any other professional workplace related to cutting or other machining of objects made of materials generating, as a result of machining, fragments of materials , and generally debris and / or dust. The invention finds a particular application in the cutting of tiles, pieces of wood or metal pieces; or more generally their machining.

During cutting or other machining of this type, fragments, debris and dust are rejected around the cutting site. For example, in a tile laying task, the operator needs to take, on a laying site, measurements of tiles to be cut to coincide with a corresponding laying space. To avoid spreading a large number of fragments, debris and dust around the installation site, the operator can move to a cutting site in order to cut the tile.

Unfortunately in the case of tasks in inhabited places, the place of cutting must, in this case, be outside the house, possibly after having gone down several floors in the case of a building.

For laying tiles requiring a large number of tile cuts, the operator generally opts for cutting at the place of installation, in particular to limit displacement and measurement errors, as well as the related inconveniences.

Cutting tiles at the installation site involves tedious cleaning of the installation site after installation. In addition, certain cutting dust is appreciably volatile and remains suspended in the air for several hours, and is then deposited on the installation site. Thus, despite the tedious cleaning at the end of the installation, the installation site is entirely covered with deposits of dust after the departure of the operator, which may require a new cleaning intervention to be carried out.

In addition, in addition to the projection of these elements on the face, dust can be inhaled by operators during several procedures and cause respiratory tract diseases and, probably, health problems affecting several organs, including the heart, stomach. and bones.

A first objective of the invention is to propose a device and a method suitable for cutting or other machining by limiting the constraints of movement of the operators, thereby improving their efficiency.

A second objective of the invention is to propose a device and a method suitable for cutting or other machining by limiting as much as possible the tedious cleaning of debris and dust.

A third objective is to propose a device and a process making it possible to better protect the health of operators.

To achieve these objectives, the invention provides a vacuum cleaner device comprising

-a suction opening structure,

- a casing, preferably mobile, associated with the suction opening structure,

- an evacuation pipe, and

- a retention bag.

According to a first aspect, the casing comprises a suction and blowing mechanism associated with the discharge pipe ending in the retention bag external to the casing, the bag being impermeable to debris and / or dust.

Advantageously, the vacuum cleaner device makes it possible to collect the fragments, debris and dust, and to transport / transport them away from the place of installation without the operator having to move repeatedly. This limits operator fatigue and increases efficiency.

In addition, the vacuum cleaner device makes it possible to significantly limit cleaning at the end of cutting, and even after, the fragments, debris and dust being sucked up during machining.

In addition, the suction limits the projections and inhalations of dust by the operators, which significantly preserves their health.

According to other aspects taken in isolation or combined according to all technically feasible combinations:

- The housing includes the suction opening structure; and or

- The suction opening structure is oriented substantially upwards; and or

- The device comprises a retention grid between the suction opening structure and the suction and blowing mechanism; and or

- The device comprises a suction enclosure opposite the suction opening structure, and a housing comprising the suction and blowing mechanism, and connected to the discharge pipe; and or

- the retention grid is arranged between the suction enclosure and the housing; and or

- The device comprises a fragment recovery structure, preferably a removable fragment recovery tank, more preferably a removable fragment recovery drawer; and or

- The device comprises an additional suction pipe connectable to the suction and blowing mechanism, associated with a suction nozzle, and optionally a substantially hermetic closure means of the suction opening structure.

The invention further relates to a method of machining an object made of material generating debris and / or dust, comprising steps of:

- implementing a vacuum device according to the invention having a suction opening near a machining,

- machine the object with the vacuum cleaner device in operation,

- transport the dust away from the machining site and the vacuum cleaner device casing via the vacuum evacuation pipe connected to the external retention bag.

Another object of the invention relates to a machining system comprising a vacuum device according to the invention, and a manual machining tool preferably comprising a motor operable in two opposite directions.

The invention will be further detailed by the description of nonlimiting embodiments, and on the basis of the appended figures illustrating preferred embodiments of the invention, in which:

- Figure 1 is a view in space of a vacuum cleaner device according to a first preferred embodiment of the invention;

- Figure 2 is a schematic view of a section along Π-ΙΙ of Figure 1;

- Figure 3 is a schematic view of a section along III-III of Figures 1 and 2; and

FIG. 4 is a view in space of an evacuation pipe associated with a retention bag, for the device of FIGS. 1 to 3.

The invention relates to the field of vacuum cleaners, in particular site vacuum cleaners. The invention relates more generally to any professional workplace related to cutting or other machining of objects made of materials such that the machining generates fragments of materials, and generally debris and / or dust.

By "other machining" is meant surface work, such as in particular grinding, resulting in discharges of fragments, debris and / or dust.

The invention finds a particular application in the cutting of tiles, pieces of wood or metal pieces or their grinding. Tiles, like the other materials referred to above, have the particularity of generating significant quantities of fragments, debris and dust when they are machined, which generates dirty deposits on the machining site.

The invention aims in particular to provide a vacuum cleaner device 1 to be used during machining.

The vacuum cleaner device 1 comprises a suction opening structure 2, as well as a casing 3, preferably mobile, associated with the suction opening structure 2. The device 1 makes it possible to produce a suction flow, in particular air, through the opening structure 2, and through the casing 3. The suction opening structure 2 is a part or a part of a part, on which a suction opening 2a is formed .

A mobile casing 3 can be easily moved to a site and between several work sites. Alternatively, the movable casing 3 includes wheels 3a to facilitate movement. We can also consider a housing integrated into a workstation.

In particular, the casing 3 comprises the suction opening structure 2. In other words, the suction opening structure 2 is arranged on the casing 3. More particularly, the casing 3 forms a hermetic enclosure in which is formed an opening 2a through which suction can be carried out. The suction opening 2a can for example measure from 20 to 100 cm thick, in particular from the side. The square shape is preferred, but an opening structure 2 of another shape can be envisaged.

Preferably, the vacuum cleaner device 1 comprises a cover 4 cooperating with the suction opening structure 2 to close the suction opening 2a, for example at the end of use. The cover 4 may have a flat surface and be simply placed on the suction opening.

The vacuum cleaner device 1 also comprises an evacuation pipe 5 associated with the mobile casing 3 and with the suction opening structure 2. In particular, the evacuation pipe 5 is connected to the casing 3 in a substantially hermetic manner. , so that the suction flow can pass through the discharge pipe 5. A connection mouth 5a is preferably provided on the casing 3 for this purpose.

The vacuum cleaner device 1 further comprises a retention bag 6, associated with the discharge pipe 5. It is preferably a bag permeable to air. In particular, the bag 6 is connected to the discharge pipe 5 in a substantially hermetic manner, so that the suction flow can pass into the bag 6 through one end of the discharge pipe 5.

According to the invention, the casing 3 comprises a suction and blowing mechanism 7 associated with the discharge pipe 5 ending in the retention bag 6 external to the casing 3, the bag 6 being impermeable to debris and / or dust.

Advantageously, the vacuum cleaner device 1 makes it possible to collect the fragments, debris and dust, and transport them away from the place of installation without the operator having to move repeatedly. In addition, advantageously, the vacuum cleaner device 1 also makes it possible to collect debris and dust, and to transport them at a distance from the place of installation in the same way. This limits operator fatigue and increases efficiency.

In addition, the vacuum cleaner device 1 makes it possible to significantly limit cleaning at the end of cutting / machining.

The retention bag 6 is configured to retain debris and dust, in particular volatile dust. A microfiber bag 6 can be used in the context of the invention. The size of the pores of the retention bag 6 depends on the use that will be made, depending on the diameters of the dust particles generated by the cut objects. In the preferred variant, the microfiber retention bag makes it possible to have pores of satisfactory size.

The size of the retention bag 6 also depends on the use to be made, and on the desired emptying frequency. In the preferred variant, the retention bag 6 has a capacity of 40 liters.

The length and thickness of the discharge pipe 5 also depend on the use to be made. In the preferred variant, the discharge pipe 5 measures more than 40 cm in length, in particular from 4 to 6 m in length, and 10 to 100 cm in thickness, in particular in diameter.

Preferably, the suction and blowing mechanism 7 comprises a flow generation means 8, in particular a propeller, here with six blades, associated with a motor 9. The suction power can be that of known construction vacuum cleaners . It can be adapted to relevant debris and fragments. In the preferred variant, the motor 9 has a power of 3000 W and reaches 15,000 rpm. The air is sucked in at around 270 km / h at a rate of 13 m ³ / min.

Upstream of the flow generation means 8 is provided a flow inlet 10, and downstream is provided a flow outlet 11. In the preferred variant, the inlet 10 and the outlet 11 are oriented orthogonally one by relative to each other, in particular substantially horizontally. The flow outlet 11 is preferably lateral to the flow generation means 8. In the preferred variant, the flow outlet 11 is substantially below the flow inlet 10.

The casing 3 preferably comprises a ventilation opening 12, here behind the suction and blowing mechanism 7.

According to a variant, the suction opening structure 2 is oriented substantially upwards. In particular, the suction opening structure 2 is at least on the upper face of the mobile casing 3.

Advantageously, an upwardly oriented suction opening structure 2 forms a good support for cutting or other manual machining, for example with a grinding wheel. The suction can be done simultaneously below the machining.

According to a variant, the vacuum cleaner device 1 comprises a retention grid 13 between the suction opening structure 2 and the suction and blowing mechanism 7.

Advantageously, the retention grid 13 makes it possible to retain the fragments of large size upstream of the suction mechanism. This results in protection of the system because the fragments have less risk of damaging the flow generation means, the evacuation pipe or the retention bag.

The size of the pores of the grid 13 depends on the use that will be made, depending on the diameters of the fragments and debris generated by the cut objects. The grid can be covered, in particular outside, with a net delimiting specific pores. In the preferred variant, the pore size is from 4 to 5.5 mm, for example squares with a side of 4 mm or a side of 5.5 mm. The net is preferably made of nylon fibers, but may be made of metal.

More particularly, the vacuum cleaner device 1 comprises a suction enclosure 1a facing the suction opening 2a, and a housing 1b comprising the suction and blowing mechanism 7. The housing 1b, in particular the portion housing 1b, is connected to the exhaust pipe 5.

More particularly, the retention grid 13 is disposed between the suction enclosure la and the housing lb. The grid 13 is preferably fixed to the casing 3, more preferably on the housing 1b.

In the preferred variant, the vacuum cleaner device 1 is of parallelepiped shape. Advantageously, this makes it possible to provide a work surface 3a behind the suction opening 2a. The suction enclosure 1a is preferably of the parallelepiped type, for example cubic.

According to a variant, the vacuum cleaner device 1 comprises a fragment recovery structure 14, preferably a removable fragment recovery tank, more preferably a removable fragment recovery drawer.

The fragment recovery structure 14 is preferably arranged below the suction enclosure la. Thus, the heavy fragments which are not in the flow fall into the recovery structure, as do the fragments or debris which do not pass through the retention grid 13.

The preference goes to the recovery drawer because it is easily removed to pour the contents, and replaced in position. The drawer (or the structure 14) preferably comprises a grip portion 14a, more preferably a handle, to facilitate handling.

In the illustrated variant, the device 1 requires an electrical supply. A power plug 16 is therefore provided to be connected to the mains. The device 1 can be used with a manual machining tool 17 also requiring an electrical supply 15.

Thus, in a preferred variant, the device comprises an electronic system 18 for electrical connection to an additional tool (17), in particular a manual machining tool 17 such as a grinder or a saw. This electronic system comprises for example an electrical outlet (18) on the casing 3.

Preferably, said electronic system 18 further comprises a switch mechanism 19 configured to activate both the additional tool (17) and the device 1 when the additional tool (17) is put into operation. This type of mechanism 19 is known to those skilled in the art and will not be discussed further. Advantageously, this mechanism 19 makes it possible to avoid switching on a switch of the device 1 then a switch of the tool 17. Putting the tool 17 into operation triggers the supply and the operation of both the tool 17 and the device 1.

According to a variant, the vacuum cleaner device 1 comprises an additional suction pipe 15 connectable to the suction and blowing mechanism 7. In particular, the pipe 15 can be connected to the suction enclosure la to simplify the layout. A connection port is provided for this purpose. It is preferably resealable, for example by a cover. The pipe 15 is associated, in particular connected, with a suction nozzle at the distal end. The tip is known in itself and will not be further exposed. In this variant, it is also possible to provide a substantially hermetic closure means for the suction opening or a corresponding valve. The closing means can be the cover 4 described above. It increases the suction through the pipe 15.

Alternatively or in combination, the distal end of the pipe 15 can be associated with a tool suction mechanism 20, for example that of the manual machining tool 17.

Alternatively or in combination, the device 1 may comprise a rigid suction line 21 connected or connectable to the suction and blowing mechanism 7, preferably also opening into the suction enclosure la. The suction line 21 comprises an inlet disposed substantially opposite the suction opening 2. Thus it allows to have suction on both sides, in particular below and above the machining.

The invention further relates to a method of machining an object of material generating debris and / or dust.

The method comprises a step of implementing a vacuum cleaner device 1 as described above having a suction opening near a machining, in particular a cutting. This stage allows for an aspiration to the right of machining.

The method further comprises, preferably then, a step of machining, in particular cutting out, the object with the vacuum cleaner device 1 in operation. This step makes it possible to vacuum debris and dust and collect the fragments simultaneously with the machining.

The method further comprises, preferably then, a step of conveying the debris and dust away from the place of machining and from the casing 3 of the vacuum cleaner device.

1. Debris and dust are transported by the suction flow via the discharge pipe 5 which is connected to the external retention bag 6. This step allows you to accumulate debris and dust remotely in the retention bag 6.

The length of the evacuation pipe 5 is chosen to put the retention bag 6 outside, for example on the floor or on a window. The retention bag 7 has a mesh for retaining dust and debris but lets the carrier fluid 30 pass, in particular air.

In the preferred variant, the suction enclosure can accommodate the discharge pipe 5, preferably foldable in accordion, the retention bag 6 and optionally at least the additional pipe 15 and the tool 17.

In use with a circular machining tool, the direction of rotation of the working portion of the tool can be decisive, it being understood that the working portion is preferably oriented substantially vertically. In the context of the invention, it is preferable that the working portion in contact with the machined object turns downwards.

For example, for a cutting of a tile held with the left hand placed on a support, and a rotary grinding wheel held with the right hand used arranged, originally, between the object to be cut and the operator's body (cutting when pushing), it is preferable that the grinding wheel turns anti-clockwise so that the portion in contact with the object turns downwards. Thus, fragments, debris and dust are projected downwards into the vacuum cleaner device 1. For the same use for a left-handed person, the direction of rotation must be reversed. The two situations are also visible for a “pulled” cut, that is to say when the object to be cut is initially placed between the body of the user and the tool. The situation is the same for machining instead of cutting.

Thus, in order to propose a system suitable for both left-handers and right-handers, and both in "pull" and "push" machining, the invention relates to a machining or cutting system comprising a vacuum cleaner device 1 as described above, and a manual rotary machining tool comprising a motor operable in two opposite directions. It is in particular a grinding wheel suitable in particular for cutting tiles.

Thus, the device and the system according to the invention make it possible to limit soiling at the place of cutting or machining, caused by dust and debris, in particular volatile dust which is deposited several hours after machining. It also helps to protect the health of operators.

In addition, the vacuum cleaner device 1 according to the invention makes it possible to limit the suction losses, in particular because the debris and dust are not accumulated in the casing 3 but outside in the retention bag 6.

In addition, it is not necessary to disassemble the casing 3 to clean it and remove dust and debris.

All of this results in a vacuum cleaner having a significantly increased service life compared to construction site vacuum cleaners of the prior art, and significantly reduced maintenance.

Claims (10)

1. Vacuum cleaner device comprising -a suction opening structure (2), a casing (3), preferably mobile, associated with the suction opening structure (2), - an evacuation pipe (5), and - a retention bag (6), characterized in that the casing (3) comprises a suction and blowing mechanism (7) associated with the discharge pipe (5) ending with the retention bag (6) external to the casing (3), the bag (6) being impermeable to debris and / or dust. 2. Vacuum cleaner device according to the preceding claim, characterized in that the casing (3) comprises the suction opening structure (2). 3. A vacuum cleaner device according to one of the preceding claims, characterized in that the suction opening structure (2) is oriented substantially upwards. 4. A vacuum cleaner device according to one of the preceding claims, comprising a retention grid between the suction opening structure (2) and the suction and blowing mechanism. 5. A vacuum cleaner device according to one of the preceding claims, comprising a suction enclosure (la) facing the suction opening structure (2), and a housing (1b) comprising the suction mechanism and blowing (7), and connected to the discharge pipe (5). 6. A vacuum cleaner device according to claims 4 and 5, wherein the retention grid (13) is disposed between the suction enclosure (la) and the housing (1b). 7. A vacuum cleaner device according to one of the preceding claims, including at least claim 5, comprising a fragment recovery structure, preferably a removable fragment recovery tank, more preferably a removable fragment recovery drawer. 8. A vacuum cleaner device according to one of the preceding claims, comprising an additional suction pipe connectable to the suction and blowing mechanism, associated with a suction nozzle, and optionally a substantially hermetic closure means of the structure. opening (2). 9. Method for machining or cutting an object from material generating debris and / or dust, comprising steps of: - implement a vacuum cleaner device according to one of the preceding claims having a suction opening near a machining or a 5 cutting, - machine or cut the object with the vacuum cleaner device in operation, - transport the dust away from the place of machining or cutting and from the vacuum cleaner device housing via the evacuation pipe connected to the external retention bag. 10. Machining or cutting system comprising a vacuum device according to one of claims 1 to 8, and a cutting or manual machining tool preferably comprising a motor operable in two opposite directions.