FR2506208A1 - Dust aspirator for circular saw - has pulsed dust carrying air from blade front returned by pipe to blade rear - Google Patents

Dust aspirator for circular saw - has pulsed dust carrying air from blade front returned by pipe to blade rear Download PDF

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Publication number
FR2506208A1
FR2506208A1 FR8024392A FR8024392A FR2506208A1 FR 2506208 A1 FR2506208 A1 FR 2506208A1 FR 8024392 A FR8024392 A FR 8024392A FR 8024392 A FR8024392 A FR 8024392A FR 2506208 A1 FR2506208 A1 FR 2506208A1
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France
Prior art keywords
dust
blade
circular saw
suction
pipe
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Granted
Application number
FR8024392A
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French (fr)
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FR2506208B1 (en
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Individual
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Priority to FR8024392A priority Critical patent/FR2506208A1/en
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Granted legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q11/00Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
    • B23Q11/0042Devices for removing chips
    • B23Q11/0046Devices for removing chips by sucking
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23DPLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D59/00Accessories specially designed for sawing machines or sawing devices
    • B23D59/006Accessories specially designed for sawing machines or sawing devices for removing or collecting chips

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sawing (AREA)

Abstract

The extractor is fitted above a circular saw blade and fixed on the dividing cutter behind the blade. It takes the place of a wooden sound baffle. It is fixed behind the rear of the dividing cutter to aspire dust at the blade exit. The dust carrying pulsed air in front of the blade passes the dust into an aspiration pipe, which returns to behind the blade. The dust return pipe has its inlet mouth on top of the sound deadener. The pipe can have several inlet mouths in the same position.

Description

Dans la rrajorité des cas , quand ils existent , les systèmes d'aspirations de sciures ou de poussières de bois , agglomérés ou autres , se trouvent installés au dessous de la lame de scie circulaire.In the majority of cases, when they exist, sawdust or wood dust extraction systems, agglomerated or otherwise, are installed below the circular saw blade.

Il est évident que les dimensions des panneaux a scier, sont de nature, a faire en srrte que l'on dispose de tables rases , d'où émerge un couteau diviseur , lame d'acier en forme de croissant . Sur ce dernier est fixé en morceau de bois ou pièce de métal léger appelé pare éclat. Emerge également la lame de scie circulaire . Si il y a éclat possible , il y a aussi poussières . Malgré une bonne aspiration , ces poussières sont encore plus abondantes lorsque la lame est inclinée à 450 pour des coupes d'onglets.It is obvious that the dimensions of the panels to be sawn are such as to make it safe to have clean tables, from which a dividing knife emerges, a steel blade in the shape of a crescent. On the latter is fixed in piece of wood or piece of light metal called splinter guard. Also emerges the circular saw blade. If there is possible shine, there is also dust. Despite good suction, this dust is even more abundant when the blade is tilted at 450 for cutting tabs.

Elles vo ] tigent à l'arrière de la lame ( sortie ) ainsi que sur le devant par propulsion . Après plusieurs heures de travail g les bronches et les poumons mis ainsi è épreuve s'en trouvent irrités , les alvéoles t fait reconnu médi- calmement parlant se bouchent petit h petit et sans rémission . La gorge et les cavités nazales sont aussi concernées.They stare at the back of the blade (exit) as well as on the front by propulsion. After several hours of work, the bronchial tubes and the lungs thus tested become irritated, the alveoli, which are medically recognized, become blocked little by little and without remission. The throat and the nazal cavities are also concerned.

L'objet de la présente invention qui sera bien comprise , en se reportant aux dessins schématiques ci annexés , a pour but de parer à ce grave inuonvénient pour une grande proportion , sans gèner l'accessibilité dessus et autour de la lame .ceci pour des exigences professionnelles d'exécutions.The object of the present invention which will be understood, with reference to the accompanying schematic drawings, aims to overcome this serious inuonvenience for a large proportion, without hampering accessibility above and around the blade. professional performance requirements.

FIG I s est une perspective du pare éclat , dont les dimensions courantes 40 cm x 7 cm x 4 cm se trouvent augmentées . Longueur : de par un dépassement à l'arrière de 20 cm (canotage des poussières à la sortie de la lame ).FIG I s is a perspective of the splinter guard, whose current dimensions 40 cm x 7 cm x 4 cm are increased. Length: due to a 20 cm overhang at the rear (canoeing of dust at the exit of the blade).

En hauteur par un tube ou couloir retour des poussières , l'épaisseur n'étant pas limitative . le pare éclat I se présente sous forme de U renversé dont l'embout 3 est obturé .- la base évidée permet le passage de la scie circulaire 4 , et du couteau diviseur 5 .- L'embout 2 comporte un trou d'admission 2 a des poussières aspirées à l'arrière de la lame par le tube 6 , sur lequel un embranchement 7 permet le retour des poussières admises à l'avant du pare éclat par le trou 8 .- le tube 9 réalise la jonction de 8 à 7
Un tuyau 10 relie alors le pare éclat ,soit à l'aspiration générale de l'usine , soit P un système auxiliaire moins onéreux pour petites installations (aspirateur) les flèches représentent 30 trajet des poussières à l'in t-rieur du pare éc ] at et des tubes d'aspi.r.ations.
In height by a dust return tube or corridor, the thickness not being limiting. the splinter guard I is in the form of an inverted U, the end piece 3 of which is closed. - the hollow base allows the passage of the circular saw 4, and of the splitting knife 5 .- The end piece 2 has an inlet hole 2 has dust sucked into the back of the blade by the tube 6, on which a branch 7 allows the return of dust admitted to the front of the splinter shield through the hole 8 .- the tube 9 joins 8 to 7
A pipe 10 then connects the splinter shield, either to the general suction of the factory, or to a less expensive auxiliary system for small installations (vacuum cleaner) the arrows represent 30 path of dust inside the screed ] at and vacuum tubes.

FIG 2 : représente une couse du pare éclat fixé sur le couteau diviseur , par un boulon tête orei ] ] e Il .Une clavette 12 (Fig I) assure la stabilité ho rizontaAe . les entretoises de fixations non numérotées , sont d'épaisseurs
inégales et de la même largeur que le couteau diviseur.
FIG 2: represents a splash of the splinter guard fixed on the dividing knife, by a head bolt ori]] e It. A key 12 (Fig I) ensures the stability ho rizontaAe. the unnumbered fastening spacers are thick
uneven and the same width as the riving knife.

FIG 3 s est une variante d'exécution ou 3e tube retour 9 est remplaçé par un couloir 9 a t présenté sous forme de caisson rapporté . le retour des pous- sières de l'avant, est assuré par Aes évidages d'admissions 13 et I4 qui déversent dans le tuyau d'aspiration générale constitue de 6 et 10 Fig I la joue 51 sise à gauche de la lames peut être prolongée vers la base (table) par une plaque de plexiglas I6 Fig 2 rapportée et déplaçable en hauteur au moyen d'encoches superposées 16 a , s'enclenchant sur des tétons appropriés.FIG 3 s is an alternative embodiment or 3rd return tube 9 is replaced by a corridor 9 has been presented in the form of an attached box. the return of dust from the front is ensured by Aes intake openings 13 and I4 which discharge into the general suction pipe constitutes 6 and 10 Fig I the cheek 51 located to the left of the blades can be extended towards the base (table) by a plexiglass plate I6 Fig 2 attached and displaceable in height by means of superimposed notches 16 a, snapping on appropriate nipples.

Cette addition favorise la captation des poussières et assure par surcroit une protection plus grande des éclats
FIG 4 : est également une variante. les poussières à l'arrière de la lame, sont toujours directement aspirées (en partie) , alors que les poussières projetées vers le haut et à l'avant, sont captées par un tube profilé spécialement étudié FIG 5 .Effectivement ces poussières sont projetées par la lame
sur des prismes I7 et I8, qui les séparent et les renvoient dans les joues
d'aspirations I9 . la sortie s'effectué en 20
FIG 5 ci dessus (mémoire)
FIG 6 s les flèches indiquent le circuit des poussières . une vanne 2I , de
hauteur variable augmente la force d'aspiration (rdpartition) sur les couloirs
Ces couloirs bénéfioent en outre de la poussée de l'air produit par la
vitesse de rotation de la lame, en direction de la sortie 20 qui s'ajoute
ainsi h la force d'aspiration.
This addition promotes the capture of dust and also provides greater protection against splinters.
FIG 4: is also a variant. the dust at the back of the blade, is always directly sucked (in part), while the dust projected upwards and at the front, is collected by a profiled tube specially studied FIG 5. Indeed these dusts are projected by the blade
on I7 and I8 prisms, which separate them and return them to the cheeks
of aspirations I9. the exit takes place in 20
FIG 5 above (memory)
FIG 6 s the arrows indicate the dust circuit. a 2I valve, of
variable height increases the suction force (distribution) on the corridors
These corridors also benefit from the thrust of the air produced by the
blade rotation speed, towards output 20 which is added
thus h the suction force.

FIG 7 s un autre profilé en matière pastique résistante , qui peut être uti
lisé dans les mêmes conditions qu'en FIG 5 .- le tube d'aspiration s'edboite
directement sur ce profil , de même que l'embout 3 porteur du cone I8
Enfin de façon plus générale , l'invention ne se limite aucunement aux seuls
modes d'exécutions indiqués , elle en embrasse au contraire toutes les va
riantes de réalisations.
FIG 7 s another profile made of resistant pastic material, which can be used
read under the same conditions as in FIG 5 .- the suction tube fits
directly on this profile, as well as the end piece 3 carrying the cone I8
Finally, more generally, the invention is in no way limited to only
modes of execution indicated, it embraces on the contrary all the va
laughing at achievements.

Claims (8)

REVENDI CÂT ION S  REVENDI CÂT ION S I : dispositif complémentaire d'aspiration pour scie circulaire g caractérisé en ce qu'il se fixe sur le couteau diviseur , situé à l'arrière de la lame s et remplace une pièce de bois simpliste appelée pare éclats.I: complementary suction device for circular saw g characterized in that it is fixed on the dividing knife, located at the rear of the blade s and replaces a simplistic piece of wood called splinter guard. 2 : dispositif selon la revendication I caractérisé en ce qu'il dépasse à l'arrière du couteau diviseurs pour aspirer les poussières à la sortie de la lame.2: device according to claim I characterized in that it projects beyond the rear of the dividing knife to suck up the dust at the outlet of the blade. 3 : dispositif selon les revendications I et 2 , caractérisé en ce que air pulsé à l'avant de la lame et porteur de poussières, envoie ces dernières dans un tube d'aspiration g qui les retourne à l'arrière de la lame. 3: device according to claims I and 2, characterized in that pulsed air at the front of the blade and carrying dust, sends the latter in a suction tube g which returns them to the rear of the blade. 4 : Dispositif selon la revendication 3 caractérisé en ce que le tube retour des poussières a sa bouche d'admission sur le toit du pare éclats.4: Device according to claim 3 characterized in that the dust return tube has its inlet mouth on the roof of the splinter guard. 5 : dispositif selon la revendication 4 caractérisé en ce que le tube retour des poussières g peut avoir plusieurs bouches d'admissions sur le toit ou plat supérieur du pare éclats.5: device according to claim 4 characterized in that the dust return tube g may have several intake openings on the roof or upper flat of the splinter guard. 6 : dispositif selon la revendication 5 caractérisé en ce que le tube retour des poussières , peut entre remplaçé , par une cage couloir avec des bouches d'admissions.6: device according to claim 5 characterized in that the dust return tube can be replaced by a corridor cage with intake openings. 7 s dispositif selon la revendication 3 t caractérisé en ce que le retour des poussières g peut être réalisé par les cotés internes du pare éclats , sortes de joues d'aspirations en forme de V ou autre -grâce b la mise en place de cônes et vannes de règlage . L'air pulsé par la lame s'ajoute à la force d'aspiration de par sa conduite forcée. 7 s device according to claim 3 t characterized in that the return of dust g can be achieved by the internal sides of the splinter guard, kinds of V-shaped suction cheeks or other -grace b the establishment of cones and control valves. The air blown by the blade adds to the suction force through its penstock. 8 : dispositif selon la revendication 4 s caractérisé en ce qu'un tuyau flexible passe au dessus de la table de scie circulaire et relie la bouche d'évacuation du tube retour des poussières située b ltarrière du pare éclats , soit à 1' aspiration générale de l'usine g soit à un aspirateur. 8: device according to claim 4 s characterized in that a flexible pipe passes over the circular saw table and connects the discharge mouth of the dust return tube located at the rear of the splinter guard, ie at the general suction from the factory g either to a vacuum cleaner.
FR8024392A 1980-11-13 1980-11-13 Dust aspirator for circular saw - has pulsed dust carrying air from blade front returned by pipe to blade rear Granted FR2506208A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8024392A FR2506208A1 (en) 1980-11-13 1980-11-13 Dust aspirator for circular saw - has pulsed dust carrying air from blade front returned by pipe to blade rear

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8024392A FR2506208A1 (en) 1980-11-13 1980-11-13 Dust aspirator for circular saw - has pulsed dust carrying air from blade front returned by pipe to blade rear

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FR2506208A1 true FR2506208A1 (en) 1982-11-26
FR2506208B1 FR2506208B1 (en) 1983-09-16

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2543873A1 (en) * 1983-04-05 1984-10-12 Mugnier Joachim Improvements to suction devices for circular saws
US4638695A (en) * 1983-05-09 1987-01-27 Striebig Ag Board saw with sawdust exhaust
EP0512640A2 (en) * 1991-05-06 1992-11-11 Elcon Machinefabriek B.V. Board sawing apparatus.

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1764634A (en) * 1929-08-24 1930-06-17 Kerner Incinerator Company Saw guard
US2499582A (en) * 1945-12-12 1950-03-07 Millard F Harrison Combined safety guard and dust collector
DE1189698B (en) * 1960-10-01 1965-03-25 Paul Schroeer Protective hood for deflecting and removing the chips-air flow, especially for circular saws
FR2203693A1 (en) * 1972-10-24 1974-05-17 Mey Kg Maschf Mafell
DE2404872A1 (en) * 1974-02-01 1975-08-14 Black & Decker Gmbh PORTABLE MACHINE TOOL WITH ROTATING CUTTING TOOL
US4063478A (en) * 1976-10-20 1977-12-20 Diebold Incorporated Saw enclosure construction

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1764634A (en) * 1929-08-24 1930-06-17 Kerner Incinerator Company Saw guard
US2499582A (en) * 1945-12-12 1950-03-07 Millard F Harrison Combined safety guard and dust collector
DE1189698B (en) * 1960-10-01 1965-03-25 Paul Schroeer Protective hood for deflecting and removing the chips-air flow, especially for circular saws
FR2203693A1 (en) * 1972-10-24 1974-05-17 Mey Kg Maschf Mafell
DE2404872A1 (en) * 1974-02-01 1975-08-14 Black & Decker Gmbh PORTABLE MACHINE TOOL WITH ROTATING CUTTING TOOL
FR2272801A1 (en) * 1974-02-01 1975-12-26 Black & Decker Mfg Co
US4063478A (en) * 1976-10-20 1977-12-20 Diebold Incorporated Saw enclosure construction

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2543873A1 (en) * 1983-04-05 1984-10-12 Mugnier Joachim Improvements to suction devices for circular saws
US4638695A (en) * 1983-05-09 1987-01-27 Striebig Ag Board saw with sawdust exhaust
EP0512640A2 (en) * 1991-05-06 1992-11-11 Elcon Machinefabriek B.V. Board sawing apparatus.
EP0512640A3 (en) * 1991-05-06 1993-01-13 Elcon Machinefabriek B.V. Board sawing apparatus

Also Published As

Publication number Publication date
FR2506208B1 (en) 1983-09-16

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