BE1027829B1 - Cutting table for wood profiles - Google Patents

Abstract

The patent concerns the work of wood or sawable materials and is aimed at the market of craftsmen and handymen wanting precision work. It is based on a compact sawing table incorporating a particular system for holding the saw from above, allowing stable and precise sawing, as well as accessories to be able to make different types of cutting: adjustment of the cutting depth, 'angle, length.

Description

H 1 2156163 BE2019 / 0103 £ ° #. Cutting table for wood profiles The patent relates to the field of carpentry and cabinet-making, precision sawing of wood or similar materials. The device allows, with a suitable hand saw (commercially available), to cut wooden profiles of small and medium sections very precisely, from 0 ° (90 °) to 45 ° in the width of the profile, and from 0 ° to 45 ° in its thickness. Disassembled into 5 parts, it is very compact and can be stored in a 44 x 30 x 11 cm suitcase and can be quickly assembled using 6 ergonomic screws.

The essential principle is the confinement of the blade by its thickness between 2 anti-friction surfaces secured to each other with a spacer corresponding to the thickness of the blade (+ Very thin excess width for the play of the lome, type 5 / 100th).

Held on its upper side, the blade is free to move back and forth and down. The blade can be tilted along its length by 2 x 15 °, either on the handle side or on the tip side. Having no perpendicular play, the saw stays on course and performs a very clean cut, free of tooth marks and chips. In vertical section, the device remains very precise up to 4 cm deep, notwithstanding the cut line which itself helps guide the blade up to its 8 cm width available within confinement. It is easy to cut a thickness of 6 cm, even & cm by tilting the blade point down. It should count 1.41 times less thickness in a 45 ° cut (4.25 cm), although more can be done by tilting the blade, which can sometimes lead to a less perfect cut. The saw blade should be rust free and well maintained. NB: the specific information such as dimensions given in this description are examples of the prototype, but can be modified, while remaining within the scope of the patent.

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The saw-guide element, of nomenclature A (in diagrams 1 and 2) is coupled, by a tightening screw, to a vertical support on which it slides, which can move over 9 cm. This other element B (still in diagram | and 2}, maintained by two axes projecting from the width of the cutting table, ie 27 cm, a, apart from the advantage of conferring great stability on this element B that also of having the entire width of the table. The saw can thus cut into the profile over almost its entire length. The front axis of the same element B (on the side of the saw handle) extends vertically 12 cm below the surface (rubber) of the table in order to join the element C, to which it is screwed by B3. This frees the work surface of any mechanism which would reduce its available width in the event of horizontal cuts out of square. The element C (see diagram 3) is provided with a pre-positioning system which, with its graduations, facilitates the positioning accuracy of the element B, and therefore, of the angle of the saw via À. The cutting table, with a dimension of 43x27 cm (as indicated above, the measurements may be different) is equipped with a stop slat of the same length (D 'in diagram 1) as the table which can move axially by O at 45 ° and lock with screw D3, as well as move back and forth over 19cm. This leaves up to 22cm available in cutting width and leaving 4 as a minimum. This makes it possible to place the wood profile as close as possible to the front of the device - and therefore to the saw handle - to reduce the strain on the wrist and gain in amplitude of the saw's movement. The linear stopper is locked by tightening screw D2. An end stop is also part of element D: with a linear development from 43 to 75 cm and with a complement to this, this allows reproductions of length between & and 75 cm. Element E is used to support a wooden profile protruding from the table for non-square cuts (see diagrams 3 and 4).

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Another type of guide support: element F (see diagram 5): Like the first, it is fixed on support B and can slide from bottom to top but is distinguished by the fact that, in its lowest position, the blade It is forbidden to descend beyond the wood profile, not entering the cutting table. Ti allows, by positioning the element & at the desired height opposite a 60mm graduation, to stop the penetration of the blade below x "mm, perfectly parallel to the cutting table and, by repeating this maneuver, perform a notch at 90 ° in the thickness of the timber profile and from 0 ° to 45 ° in its width. Equipped with its F1 base, in addition to the possibility of making any type of notch in the length or at the end of the profile (interlocking ...), this element F allows you to truly sculpt medium and even very small pieces in wood (marquetry), plastic, rubber. The base F1, with a width available from 15 cm to 90 ° and maximum 7.5 cm to 45 °, allows to place the pieces to be cut, without restriction of length against the fixed stop, of the same length (30cm), cut at the level of the passage of the blade at 27cm, leaving 3 cm protruding from the vertical axis of the latter, which optimizes the blocking of small parts. This base Fl is fixed on D by Dice. Accessory n ° 1: G in diagrams 6, 7 and 8 A ‘height adjustable nylon casters (diagram 8). B: adjustment lever + biocage. (diagram 8).

C: millimeter graduation of the height of the castors. (diagram 8). D: screw fixing on element E4 of the device. (diagram 8). E: comparator composed of a jaw whose opening always corresponds to the difference in height between the top of the casters and the surface of the base E and E4, (diagram 8). This instrument is used to prevent the descent of the blade into the wood-section 40 below a desired thickness, It allows to make grooves, perpendicular or angular recesses to the section and interlocking halfway through the timber by combining it with the instrument 2. The height of the castors is a maximum of 4 cm in relation to E and move simultaneously.

Accessory n ° 2: MH, on diagrams 7 (general) and 9 (with details) To (diagram 9) 40mm Alu profile, one side of which is used to fix any profile using a clamp. wood of medium section and a maximum length of Im, in order to present it vertically to the saw blade in the direction of the grain of the wood. B: tightening screw for the mobile part of the instrument including the Alu A profile. Allows movement of the latter over 30mm in order to place the wood profile in the desired location relative to the vertical of the blade. C: 2 metal-rubber rollers, the height of which, identical, prevents the blade from exceeding a mark with a pencil or saw, so as to create a half-wood interlocking.

Hi and H2: fixing on the device Mode of use Choose the appropriate angles, insert the board in its guide and start the wood-section from the rear, then straighten the board little by little, starting the width of the section - drink. Then continue the cut from the front and join the starting point, inclined saw, the handle a little lower than the point. This way of preceding is efficient and ideal, giving a cut free of streaks in the thickness of the wood and avoiding small chips on its underside. The design of the system ensures a very clean cut. 40

Nomenclature of the elements and sub-elements: A: quide-saw 5 Al: clamping screw of the vertical slide B: vertical support of A Bi: vertical slide B2: fixing screw of B on its axes 83: fixing screw on C B4 : axis of B €: graduated longitudinal buttonhole slat + pre-positioning notches Cl: buttonhole tightening screw CZ: positioning mechanism C3: reading angles D: axial and linear movement stop DI: horizontal slide D2: screw linear locking D3: axial locking screw D4: buttonhole at 45 ° arc DS: end stop D6: fixing point of F1

E: protruding profile supports El: fixing of the assembly C-E F: quide back saw Fi: base for F (fixed on D6) &: accessory n ° 1 H: accessory n ° 2

I: appliance storage case which is dismantled by means of 6 ergonomic screws.

Suitcase dimensions: 44 x 30 x 11 em. 40

Claims (1)

III Claims: 1) The object of the patent is to improve conventional manual miter saws. All based essentially on the same principle, it differs from them in several points. The saw is passed flush with the right edge of the device (for right-handed people). This has the advantage: a} a great freedom of movement of the saw and of inclination of the latter giving more efficiency without losing precision, also avoiding a tedious end of horizontal cut, as in the case of a conventional saw b } the saw always remaining in the same plane, the position for sawing is always the same, ideal, even for cuts at 45 ° c) all angles are allowed, the saw never cutting into the cutting table d) it is then easy to incline the guide support (B in diagram 2) on its axes by means of the free rod C, or pre-positioned and to make angle cuts between O and 45 ° in the thickness of the wood e) to adapt accessories such as those belonging to the same patent 2) The saw guide (A in diagram 2) a) to the length of the width of the cutting table, the saw having no possible play on the 22 cm of available cutting space b) this is essential to make angle cuts in the thickness of the wood, or even to remove a drill bit. t low thickness (eg 2mm) at its end c} its height is adjustable by sliding on À depending on the thickness of the timber to be sawn, up to 8 cm 3) The stop (C in diagram 1) a) It allows by its principle to always have the saw in the same plane, by placing the wood against it (rubber coating) governed at the desired angle by D3 (diagram 1) b} Its forward-backward movement (+ tightening ) makes it possible to place the part to be sawed or closer to the saw handle: gain in amplitude of the saw and in effort of the wrist. 4} a) Accessory & allows partial cuts in the thickness; notches, interlocking (vertical cuts only). Diagram 7 b) Accessory H: allows to join a partial cut made with accessory &, this in the grain of the wood; half-wood end / tenon interlocking 40 c) Back saw guide: allows very precise marquetry-type cuts. Its height is adjustable on A allowing partial cuts (F on diagram 5)