EP1654098A1 - Scie utilisee dans le batiment - Google Patents

Scie utilisee dans le batiment

Info

Publication number
EP1654098A1
EP1654098A1 EP04748783A EP04748783A EP1654098A1 EP 1654098 A1 EP1654098 A1 EP 1654098A1 EP 04748783 A EP04748783 A EP 04748783A EP 04748783 A EP04748783 A EP 04748783A EP 1654098 A1 EP1654098 A1 EP 1654098A1
Authority
EP
European Patent Office
Prior art keywords
tabletop
saw blade
saw
building
cradle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP04748783A
Other languages
German (de)
English (en)
Norwegian (no)
Inventor
Yngvar Georg Karlsen
Svein Frydenlund
Jan Hansen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ernex AS
Original Assignee
Ernex AS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ernex AS filed Critical Ernex AS
Publication of EP1654098A1 publication Critical patent/EP1654098A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B5/00—Sawing machines working with circular or cylindrical saw blades; Components or equipment therefor
    • B27B5/16—Saw benches
    • B27B5/18—Saw benches with feedable circular saw blade, e.g. arranged on a carriage
    • B27B5/20—Saw benches with feedable circular saw blade, e.g. arranged on a carriage the saw blade being adjustable according to depth or angle of cut; Radial saws, i.e. sawing machines with a pivoted radial arm for guiding the movable carriage
    • B27B5/202—Saw benches with feedable circular saw blade, e.g. arranged on a carriage the saw blade being adjustable according to depth or angle of cut; Radial saws, i.e. sawing machines with a pivoted radial arm for guiding the movable carriage with the saw blade underneath a work-table
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D45/00—Sawing machines or sawing devices with circular saw blades or with friction saw discs
    • B23D45/06—Sawing machines or sawing devices with circular saw blades or with friction saw discs with a circular saw blade arranged underneath a stationary work-table
    • B23D45/061—Sawing machines or sawing devices with circular saw blades or with friction saw discs with a circular saw blade arranged underneath a stationary work-table the saw blade being mounted on a carriage
    • B23D45/062—Sawing machines or sawing devices with circular saw blades or with friction saw discs with a circular saw blade arranged underneath a stationary work-table the saw blade being mounted on a carriage the saw blade being adjustable according to depth or angle of cut
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B5/00—Sawing machines working with circular or cylindrical saw blades; Components or equipment therefor
    • B27B5/16—Saw benches
    • B27B5/18—Saw benches with feedable circular saw blade, e.g. arranged on a carriage
    • B27B5/20—Saw benches with feedable circular saw blade, e.g. arranged on a carriage the saw blade being adjustable according to depth or angle of cut; Radial saws, i.e. sawing machines with a pivoted radial arm for guiding the movable carriage
    • B27B5/207—Saw benches with feedable circular saw blade, e.g. arranged on a carriage the saw blade being adjustable according to depth or angle of cut; Radial saws, i.e. sawing machines with a pivoted radial arm for guiding the movable carriage the saw blade being fitted on a movable carriage
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
    • B27G19/00—Safety guards or devices specially adapted for wood saws; Auxiliary devices facilitating proper operation of wood saws
    • B27G19/02—Safety guards or devices specially adapted for wood saws; Auxiliary devices facilitating proper operation of wood saws for circular saws

Definitions

  • the invention relates to a building saw comprising a stand, a tabletop, a cradle with a motor mounted on the cradle for rotating operation of a saw blade and a slot for the saw blade provided in the tabletop, where the stand comprises a frame, which is connected to the tabletop by means of distance brackets and collapsible legs, and the cradle with motor and saw blade are located substantially between the frame and the tabletop.
  • the building saw according to the invention has a wide range of applications, while being of such a size and provided with devices that enable it to be easily transported, with the result that it is mobile. In a building process it will be necessary to saw a large number of planks, sheets, boards, etc.
  • the object of the present invention is to achieve a saw which avoids the above- mentioned disadvantages involving the limited range of uses of smaller building saws and the ability to transport larger building saws.
  • the building saw according to the invention as it is defined in the following claims provides a building saw which is compact, i.e. relatively small in size and easy to move, but with a wide range of uses.
  • the building saw has a greater range of application than known mobile building saws due amongst other things to the saw blade's many degrees of freedom, while at the same time it is compact and equipped with devices that enable it to be easily transported and employed at the assembly site.
  • the building saw according to the invention is also easy for an operator to use since all the saw blade's degrees of freedom are operated by a single handle, where the saw blade can be raised, moved, tilted and/or rotated by this handle. All these degrees of freedom are also infinitely variable and provided with locking devices, thus enabling them to be locked in a desired position for the saw blade if required.
  • An upper protective device for the building saw is mounted in a hoop which is mounted on the building saw under the table top and the angle locator is attached to a track recessed in the table top, with the result that the table top is clear for the sawing operation. This means that there are no obstacles in the way when passing the workpiece over the table top, thus simplifying the work of an operator.
  • the saw also has wheels and handles attached to the stand and/or the tabletop, in addition to which the legs are collapsible, thus enabling the building saw to be transported more easily than conventional saws.
  • the fact that the saw can be wheeled in addition to its being substantially box-shaped in the transport position make the saw more suitable for transport than other known saws with an equally wide range of uses.
  • fig. 5 is a principle view of the saw blade's degrees of freedom in a building saw according to the invention
  • fig. 6 illustrates the building saw's cradle between the tabletop and the frame viewed at an angle from the side
  • fig. 7 is a view from the side of the building saw's cradle mounted on the bottom of the turntable in one position
  • fig. 8 illustrates the cradle in fig. 7 in a second position
  • fig. 9 illustrates the cradle in fig. 8 in a third position.
  • fig. 1 a mobile building saw according to the invention is illustrated in an upright position, ready for use.
  • the mobile building saw comprises a saw blade 1, a tabletop 2, a stand 3 and a cradle with a motor mounted on the cradle for rotating operation of the saw blade 1.
  • a turntable 15 with a slot 4 for the saw blade 1.
  • the stand 3 comprises a frame 5, which is connected to the tabletop 2 by means of distance brackets 6 and collapsible legs 7.
  • the cradle with motor and saw blade 1 are located substantially between the frame 5 and the tabletop 2.
  • the stand 3 has one or more extendable handles (not shown in the figures). These handles may be employed for carrying and lifting the building saw and such handles will be mounted on the frame 5, the tabletop 2 and/or the distance brackets 6 in an appropriate manner, so as to provide a good grip while not interfering with sawing.
  • the stand 3 may also have a handle designed for wheeling the building saw. This handle will be fixed to the frame 5, the tabletop 2 and/or the distance brackets 6 in a known manner, and may possibly be telescopic in order to attain a height suitable for wheeling.
  • the building saw also comprises at least one wheel 14 attached to the stand 3 and/or the table top 2 (see fig. 2 and fig. 4), thus enabling the saw to be moved on wheels.
  • the frame 5 and the tabletop 2 have an area of substantially similar shape, with the outer edges of the frame 5 and the tabletop 2 in alignment with each other.
  • the saw is easy to transport, being easy to handle and stack together with other equipment.
  • two of the corners of the tabletop 2 and the frame 5, which are facing the normal operator position are rounded to give the operator a better working position.
  • the edge of the tabletop with rounded ends is indicated as the front edge of the saw, while the opposite edge is indicated as the rear edge and the edges extending between the front and the rear edges are indicated as lateral edges of the saw.
  • the legs 7 of the stand 3 may also be provided with adjusting devices in order to adapt it to an uneven base.
  • the building saw's tabletop 2 comprises a track channel 9 extending from the front to the rear edge of the table top.
  • the track channel 9 is disposed in the tabletop 2, close to but at a distance from one lateral edge of the tabletop 2.
  • the track channel 9 may be achieved by means of a profiled groove in the tabletop or by a U-shaped groove in the tabletop with a track channel profile mounted in the groove.
  • a track 10 is mounted in the track channel 9.
  • the track 10 has a length corresponding to the length of the track channel 9 in the tabletop 2.
  • the track 10 is movably and lockably connected to the track channel 9, thus enabling the track 10 to be moved along the track channel.
  • the track 10 In a transport position the track 10 will be centred in the track channel as illustrated in fig. 1, while it can be pulled out to both sides during use.
  • An angle locator 11 is movably attached to the track 10 by a locking device 12 for locking the angle locator 11 in a desired position along the track 10. If so desired, the angle locator may also be made rotatable in order to adjust it at a desired angle. Since the track 10 can also be pulled along the track channel 9, the angle locator 11 can be given a position at a distance outside the tabletop 2. This provides the building saw according to the invention with a wider range of uses than the size of the actual tabletop would indicate, while still being compact, which is an advantage with regard to transport.
  • the building saw also has an upper protective device 40 mounted above the slot 4 in the tabletop 2.
  • the upper protective device 40 is attached to a hoop 41 which is affixed to the building saw beneath the tabletop 2. This gives the saw's tabletop 2 a "clear" surface which is advantageous for easy handling of the workpieces that have to be processed by the saw.
  • the hoop 41 extends in a deflected U-shape, with the bottom of the U-shape at a distance outside the tabletop 2.
  • one end of the hoop 41 is connected via a straight portion to the underside of the turntable 15, where the protective device 40 is attached to the other end of the hoop 41.
  • the shape of the hoop and the position of the distance brackets 6 between the tabletop 2 and the frame 5 are such that the turntable 15 with the hoop 41 can be rotated from -45 degrees to +90 degrees relative to a normal starting position, in which the saw blade 1 is at right angles between the front and rear edges of the tabletop 2.
  • Other designs may be envisaged here that enable the saw to be rotated from -90 degrees to +90 degrees.
  • the upper protective device 40 is attached to one end of the hoop 41 by an attachment device 42.
  • the attachment device is such that the upper protective device 40 can be moved between a position more or less in abutment against the tabletop 2 and a position at a distance from the tabletop 2.
  • An operating handle 43 and suction attachment 44 are also mounted on the upper protective device 40.
  • the legs of the hoop's 41 deflected U-shaped portion have a length that is longer than absolutely necessary in order to give the saw greater unobstructed space round the tabletop and thereby a wider range of uses for the saw.
  • the legs 7 will be folded up with the result that in a transport position the saw is essentially box-shaped.
  • the legs 7 are rotatably mounted on the frame with the result that in a folded up position the legs 7 are substantially located on a level with the frame 5.
  • the legs may be attached to the tabletop and folded up by means of hinges between the tabletop 2 and the frame 5.
  • the legs may be scissors-shaped or also possibly telescopic.
  • the upper protection 40 is mounted within the outer edges of the frame 5 and the tabletop 2 in a transport position, with the result that as little as possible of the saw protrudes outside the box shape in a transport position.
  • the turntable 15 with the cradle 20 and the saw blade will also be locked in a position rotated at 90° relative to the front edge of the tabletop.
  • the building saw according to the invention also has a number of devices for moving the saw blade.
  • five principle drawings are illustrated for the saw blade's degrees of freedom for a building saw according to the invention.
  • a direction of rotation for the saw blade is illustrated, 5b raising and lowering of the saw blade relative to the tabletop, 5c movement of the saw blade relative to the slot in the tabletop, 5d tilting of the saw blade relative to a horizontal plane and 5e rotation of the saw blade relative to a vertical plane by rotating the turntable. All of these movements of the saw blade are operated by means of a common movement device.
  • the saw blade 1 and the motor amongst other things are mounted in a cradle 20.
  • the cradle with the devices for moving the saw blade 1 are illustrated in figures 6-9, where the cradle 20 is viewed in various perspectives and where the saw blade 1 has different positions. All the saw blade's movements can be controlled by moving one single handle 35, as illustrated in fig. 1 and fig. 6.
  • the saw blade 1 in the building saw is rotated by a motor about an axis of rotation.
  • the saw blade 1 can be rotated in both directions about the axis of rotation, but in a preferred embodiment the saw blade 1 rotates about the axis of rotation in such a direction that a point on the saw blade 1 moves from a position closest to the normal operator position and the rounded corners of the tabletop, in a curve over the tabletop 2 to a point furthest away from the normal operator position.
  • the operator will push the elements that have to be cut away from him when the saw blade is at right angles to the front edge of the tabletop 2.
  • By rotating and pushing the elements in this manner greater safety is achieved when operating the saw. Should a tooth break loose from the saw blade, for example, as a result of the saw blade's rotation, the direction of travel of the tooth is away from the operator instead of being directed towards him, which will be the case if the saw blade rotates the other way.
  • the building saw also comprises a turntable 15 mounted in the tabletop 2, illustrated in fig 1.
  • Figs. 7-9 illustrate the turntable 15 viewed from the underside with the cradle mounted on the turntable 15.
  • the slot 4 for insertion of the saw blade 1 is provided in the turntable 15 and the cradle 20 is connected to the turntable 15, with the result that when the turntable 15 is rotated about a substantially vertical axis, the saw blade 1 will acquire an angle relative to a vertical plane.
  • the turntable 15 can be rotated from -45 to +90 degrees relative to a position where the saw blade 1 is at right angles to the front edge of the tabletop 2.
  • the cradle 20 is mounted on the underside of the turntable 15, as illustrated in figs. 7-9.
  • the cradle 20 is mounted in a steplessly tiltable manner on the turntable 15 by means of pivot hinges 32 as illustrated in figs. 7-9, thus enabling the cradle 20 with the saw blade 1 to be rotated about a substantially horizontal axis, with the result that the saw blade 1 can be set at an angle with a substantially horizontal plane.
  • the axis of rotation for this tilting motion of the saw blade 1 extends parallel to and close to the slot 4.
  • two pivot hinges 32 are mounted, one at each end of the slot 4, thus causing the whole cradle with the saw blade 1 and the motor to be tilted.
  • the cradle is illustrated at right angles to the tabletop in fig. 6 while in figs. 7-9 it is illustrated at an angle relative to the tabletop.
  • the cradle 20 further comprises movement devices for moving the saw blade in the direction of the slot's 3 longitudinal direction.
  • the movement device comprises a first substantially horizontally oriented guide rod 29 mounted on the cradle and a movement bracket 27 mounted in a steplessly movable manner on the guide rod 29.
  • the saw blade 1 and the motor are mounted in connection with the movement bracket 27.
  • a lock device 28 is also provided for securing the movement bracket 27 relative to the guide rod 29.
  • the saw blade is illustrated in one position along the first guide rod 29 in figures 6-8 and in a position at the opposite end of the first guide rod 29 in fig. 9.
  • the cradle 20 also comprises a raising device for the saw blade 1 in order to raise it upwards from a lower position under the tabletop to an operating position where a portion of the saw blade 1 is located above the tabletop 2 by the saw blade 1 being inserted in the slot 4.
  • the raising motion of the saw blade is a linear motion, which gives as precise a movement of the saw blade as possible. This raising motion may conceivably also be performed in a circular arc, but this produces a less precise movement of the saw blade and is therefore not advantageous.
  • the raising device comprises a second guide rod 24 mounted on the movement bracket 27, where the second guide rod 24 extends perpendicularly on the first guide rod 29 and parallel to the plane of the saw blade.
  • a motor bracket 22 is mounted in a steplessly movable manner on the second guide rod 24, where the motor with the saw blade are mounted on the motor bracket in such a manner that when the motor bracket is moved, the portion of the saw blade above the tabletop 2 will be adjusted.
  • the raising device also comprises a lock device 23 for locking the saw blade 1 in the desired position with regard to how large a portion of the saw blade 1 is required to be above the tabletop 2.
  • the motor bracket 22 is locked by the lock device 23 relative to the movement bracket 27.
  • the lock device 28 for the movement bracket 27 locks the movement bracket 27 relative to the cradle 20.
  • the lock device for the cradle 20 locks the cradle 20 relative to the turntable 15 and the lock device for the turntable 15 locks the turntable relative to the tabletop 2.
  • All these movements of the saw blade 1 can be performed by a common handle 35, and when all the lock devices are disengaged the saw blade 1 can be moved freely in four degrees of freedom.
  • the handle 35 for performing these movements of the saw blade 1 is linked at one point to an angular portion 25 of the handle of the movement bracket 27 and inserted in a groove guide 30 at a second point on the movement bracket 27, and furthermore it is linked at a point 31 to the motor bracket 22, with the result that a vertical movement of the handle 35 leads to a raising movement of the saw blade 1, a horizontal inward/outward movement results in movement of the saw blade 1, a circular arc movement in a substantially vertical plane results in tilting movement of the saw blade and a shift of the handle in a circular arc in a substantially horizontal plane results in a rotational movement of the saw blade 1.
  • the handle 35 may be arranged to be removable, thus enabling it to be placed between the tabletop 2 and the frame 5 when the saw is transported or alternatively used as a part of one of the transport handles.
  • a building saw according to the invention will also comprise in the known manner operating devices for operation of the saw blade and operation of the motor. This will be obvious to a person skilled in the art and therefore receives no further explanation here.
  • the legs of the stand may be constructed as telescopic legs or scissors legs and can be attached to the frame, the distance brackets or the tabletop in a number of ways, while still being collapsible, and the tabletop may have collapsible extensions.
  • the building saw may also include as extra equipment a laser sight, which is attached in such a manner that the light beam indicates the direction of cut.
  • the attachment of the handle and arrangement of the elements that give the saw blade its degrees of freedom may also conceivably be provided differently, for example by placing the horizontal guide near slots, etc.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Sawing (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Manufacture, Treatment Of Glass Fibers (AREA)

Abstract

La présente invention concerne une scie utilisée dans le bâtiment, comprenant un socle (3) présentant un châssis (5), qui est connecté à une table (2) au moyen d'éléments de fixation d'espacement (6), et des pieds (7). Selon l'invention, la table (2) présente une partie de table rotative (15) qui présente une fente (4), et un berceau (20) comprenant un moteur et une lame de scie circulaire (1) disposés sur la partie de table rotative (15), le berceau (20) étant disposé sensiblement entre le châssis (5) et la table (2). La lame de scie peut tourner autour de son axe de rotation dans un sens tel qu'un point de la lame de scie (1) se déplace d'un emplacement où il se trouve le plus proche de l'emplacement d'opérateur normal, en décrivant une courbe sur la table (2), jusqu'à un point plus éloigné de la position d'opérateur normal, et la lame de scie est suspendue de sorte qu'elle peut être élevée, déplacée, inclinée et/ou tournée de façon continue et en étant bloquée, et la scie comprend un dispositif de manipulation (35) qui sert à donner à la scie tous les mouvements correspondant à son élévation, son déplacement, son inclinaison et/ou sa rotation.
EP04748783A 2003-07-07 2004-07-06 Scie utilisee dans le batiment Withdrawn EP1654098A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO20033108A NO321975B1 (no) 2003-07-07 2003-07-07 Bygningssag
PCT/NO2004/000207 WO2005002813A1 (fr) 2003-07-07 2004-07-06 Scie utilisee dans le batiment

Publications (1)

Publication Number Publication Date
EP1654098A1 true EP1654098A1 (fr) 2006-05-10

Family

ID=27800786

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04748783A Withdrawn EP1654098A1 (fr) 2003-07-07 2004-07-06 Scie utilisee dans le batiment

Country Status (3)

Country Link
EP (1) EP1654098A1 (fr)
NO (1) NO321975B1 (fr)
WO (1) WO2005002813A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006014647B4 (de) * 2006-03-28 2016-06-09 Otto Martin Maschinenbau Gmbh & Co. Kg Bearbeitungsmaschine, insbesondere Kreissäge
CN107708946B (zh) * 2014-12-03 2021-07-13 罗伯特·博世有限公司 便携式台锯
JP7390953B2 (ja) 2020-03-26 2023-12-04 大和ハウス工業株式会社 電動丸鋸
CN111775225A (zh) * 2020-08-28 2020-10-16 衡阳嵘昇生物颗粒有限公司 一种木料加工用工作台

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3931751A (en) * 1974-11-13 1976-01-13 Simonson Paul A Collapsible mounting for power saw units
US4276799A (en) * 1979-04-18 1981-07-07 Black & Decker Inc. Power tool apparatus
WO1999044795A1 (fr) * 1998-03-06 1999-09-10 Ernex As Scie de menuisier

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2005002813A1 *

Also Published As

Publication number Publication date
NO321975B1 (no) 2006-07-31
WO2005002813A1 (fr) 2005-01-13
NO20033108D0 (no) 2003-07-07

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