EP1623801A1 - Eine zwischen einer Übertisch- und einer Untertischlage verschwenkbare Säge - Google Patents

Eine zwischen einer Übertisch- und einer Untertischlage verschwenkbare Säge Download PDF

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Publication number
EP1623801A1
EP1623801A1 EP05016702A EP05016702A EP1623801A1 EP 1623801 A1 EP1623801 A1 EP 1623801A1 EP 05016702 A EP05016702 A EP 05016702A EP 05016702 A EP05016702 A EP 05016702A EP 1623801 A1 EP1623801 A1 EP 1623801A1
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EP
European Patent Office
Prior art keywords
flip over
rotating position
main body
locking member
over saw
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.)
Granted
Application number
EP05016702A
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English (en)
French (fr)
Other versions
EP1623801B9 (de
EP1623801B1 (de
Inventor
Toshiyuki c/oMakita Corporation Kani
Syuji c/oMakita Corporation Aoyama
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.)
Makita Corp
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Makita Corp
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 Makita Corp filed Critical Makita Corp
Publication of EP1623801A1 publication Critical patent/EP1623801A1/de
Application granted granted Critical
Publication of EP1623801B1 publication Critical patent/EP1623801B1/de
Publication of EP1623801B9 publication Critical patent/EP1623801B9/de
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Anticipated expiration legal-status Critical

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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
    • B27B5/165—Convertible sawing devices

Definitions

  • the present invention relates to a flip over saw including a main body having a saw blade driven to rotate and a table at which the main body is held movable up and down, and a base at which the table and the main body are held rotatable 180 degrees.
  • the flip over saw can be used as a miter saw when the main body is positioned over the table, and can be used as a table saw when the main body is positioned under the table protruding the saw blade over the table.
  • a conventional flip over saw has a rectangular mounting base on which a table is horizontally supported rotatable 180 degrees around a center portion of the table and capable of being secured even if either one or the other surface of the table faces upwardly.
  • a main body is pivotally mounted movable up and down, and the main body has a saw blade which rotates driven by a motor.
  • the flip over saw can be used as a miter saw when the table is at the first rotating position that the main body is positioned over the table, in which the main body is lowered to cut a workpiece disposed on the table.
  • the flip over saw can be used as a table saw when the table is at the second rotating position that the main body is positioned under the table by rotating the table with a condition that the saw blade is secured at the bottom dead center to penetrate the table downwardly.
  • a table saw mode the workpiece on the table can be slid with respect to the saw blade and cutting is conducted.
  • an object of the present invention is to provide a flip over saw which enables locking and lock release of the table with a simple structure.
  • the first aspect of the present invention is characterized in that a locking member including a first engaging portion to engage with a table being at the first rotating position and a second engaging portion to engage with the table being at the second rotating position is provided on a base.
  • the locking member is movable between a locking position where the corresponding engaging portion engages with the table and a lock release position where the engagement is released in accordance with each rotating position of the table.
  • the second aspect of the present invention in addition to the object of the first aspect, is characterized in that, in order to improve operability of the locking member and reliability of locking, the locking position in which the first engaging portion of the locking member engages with the table is the same as that in which the second engaging portion of the locking member engages with the table. Moreover, a biasing means is provided to urge the locking member to the locking position.
  • the third aspect of the present invention in addition to the object of the first or second aspect, is characterized in that, in order to improve operability of the locking member, inclined guide portions are provided with the first engaging portion and/or the second engaging portion.
  • the inclined guide portions retract the locking member to the lock release position in abutment with the table moving to each rotating position, thereby permitting the table to be reversed to each rotating position.
  • locking and lock release of the table at each rotating position can be conducted by one locking member. Consequently, the structure of locking of the table rotation can be simplified, which reduces additional cost.
  • lock release of the table from either of the two rotating positions can be conducted through the same operation, so that the operability is excellent.
  • the biasing means ensures return to the locking position from the lock release position, which enables to keep the table in a locking state and thus operability is improved.
  • the locking member in addition to the effect of the first or second aspect, the locking member is automatically retracted when the table is reversed to each of the rotating positions. Therefore, the locking member requires no operation to prevent interference with the table, whereby operability is further improved.
  • FIG. 1 is an overall view showing an example of a flip over saw and Fig. 2 is a plain view thereof.
  • a flip over saw 1 has a base 2 which is a mounting in rectangular shape in a plain view and a table 3 placed on the base 2, and a saw blade unit 4 mounted on the table 3.
  • the table 3 is held rotatable 180 degrees around the rotating shafts 5, 5 extending in the lateral direction (in Figs. 1 and 2, the right is forward).
  • the table 3 can be secured in a horizontal state by means of a lock lever 6 provided with the base 2 as a locking member even if either one or the other surface of the table 3 faces upwardly as described later.
  • the table 3 also has a circular turntable 7 which is horizontally turnable, and a guide fence 8 parallel to the rotating shaft 5 so as to transverse on the turntable 7.
  • the saw blade unit 4 has a support arm 9 standing at the rear part of the turntable 7 and a main body 11 held to be movable up and down by a support shaft 10 at the upper end of the support arm 9.
  • a blade cover 12 which is a housing of the main body 11
  • a motor 13 and a handle 14 are provided at the left side of a blade cover 12 which is a housing of the main body 11.
  • a circular saw blade 15 driven to rotate by the motor 13 is provided at the left side of a blade cover 12 which is a housing of the main body 11.
  • a circular saw blade 15 driven to rotate by the motor 13 is provided.
  • the main body 11 is urged toward the top dead center as shown in Fig. 1 by a torsion spring (not shown) provided on the support shaft 10.
  • a torsion spring not shown
  • the main body 11 is lowered to the bottom dead center where it penetrates a slit (not shown) provided at the center of the turntable 7 when a handle 14 is held down.
  • the reference number 16 denotes a safety cover which is at the position of covering the saw blade 15 when the main body 11 is at the top dead center and rotated to expose the saw blade 15 in accordance with lowering of the main body 11.
  • the support arm 9 can be tilted with the main body 11 in the right direction on the turntable 7. Fixing the tilted support arm 9 and the main body 11 by a lever 17 at an arbitrary tilting position provides the saw blade 15 with an angle in the perpendicular direction. With the tilt of the main body 11, bevel cutting can be conducted with respect to the workpiece on the turntable 7. Moreover, the turntable 7 can turn in a horizontal direction with the main body 11 when a handle 14 is held down. In accordance with the selected angle of the horizontal turn of the turntable 7, orthogonal cutting and miter cutting can be conducted. In the orthogonal cutting, the saw blade 15 is perpendicular to the guide fence 8. On the other hand, in the miter cutting the saw blade 15 is horizontally slanted from the perpendicular position.
  • the main body 11 can be secured at the bottom dead center by means of a locking mechanism 18 provided between the support arm 9 and the main body 11. As shown in Fig. 4, by reversing the table 3 with this secured condition of the main body 11, a table saw mode can be obtained wherein only the saw blade 15 protrudes above the table 3 on which a workpiece is slid for cutting.
  • the rotating shafts 5, 5 of the table 3 are positioned on the table 3, so that there is a difference in height of the table 3 between at the first rotating position as shown in Figs. 1-3 (the miter saw mode) and at the second rotating position as shown in Fig. 4 (the table saw mode). (The table 3 in the table saw mode is higher.)
  • an opening 19 is provided at the center of the base 2 in the longitudinal direction.
  • a pair of first stopper rubbers 20, 20 which support the lower surface of the table 3 at the first rotating position are provided on the front side of the opening 19.
  • a pair of second stopper rubbers 21, 21 are provided on the rear side of the opening 19. The second stopper rubbers 21, 21 are positioned on the table 3 at the first rotating position, and support the lower surface of the table 3 at the second rotating position.
  • the table 3 can be reversed only in the direction in which the rear part of the table is flipped up (the direction of an arrow of Fig. 4) in converting from the table saw mode to the miter saw mode.
  • the rotating shafts 5, 5 are not positioned at the center of the table 3 in the longitudinal direction, but instead at a slightly rearward position in the first rotating position, so that the table 3 does not interfere with the first stopper rubbers 20, 20 upon conversion from the miter saw mode to the table saw mode.
  • the lock lever 6 is a plate-like body disposed in the longitudinal direction so as to be fit into between the base 2 and the table 3 at the left side of the rear part of the opening 19.
  • the lock lever 6 is provided with the base 2 pivotable around a stepped pin 22.
  • the position of the stepped pin 22 is at a corner portion of the lock lever 6, which is the front bottom end thereof.
  • the lock lever 6 has a slit 23 which is formed as an arc centered at the stepped pin 22 and which is penetrated by a stepped pin 24 threadedly mounted to the base 2. Because of this, the lock lever 6 is allowed to rotate only in the range that the stepped pin 24 can relatively move within the slit 23.
  • the lock lever 6 is urged by a torsion spring 25 which is used as a biasing means.
  • One end of the torsion spring 25 is engaged with the base 2 and the other end thereof is engaged with the lock lever 6, whereby in a normal state the lock lever 6 is at the upper locking position where the stepped pin 24 is positioned at the bottom end of the slit 23 (as shown in a solid line of Fig. 5).
  • the reference number 26 denotes an operating lever bent orthogonally toward the outer side of the base 2 at the upper end of the lock lever 6.
  • a hook portion 27 whose upper end is bent upward and the top surface of the upper end is an inclined guide portion 31, linearly inclining downward while moving toward the front.
  • stopper screws 28, 29 are threadedly provided in the front and the rear to interfere with the lock lever 6 in accordance with rotation of the table 3.
  • the turning radius (moving locus) of the stopper screw 28 is different from that of the stopper screw 29 because of the above-described location of the rotating shaft 5 of the table 3. That is, as shown in Figs. 2, 3 and 5, at the first rotating position of the table 3 the stopper screw 29 engages with an engaging corner 30 as a first engaging portion provided at the upper front end of the lock lever 6 from above.
  • Figs. 2 the stopper screw 29 engages with an engaging corner 30 as a first engaging portion provided at the upper front end of the lock lever 6 from above.
  • the table 3 in the miter saw mode where the table 3 is positioned at the first rotating position as shown in Figs. 1-3, the front lower surface of the table 3 is supported by the first stopper rubbers 20, 20 and the rear part of the table 3 is supported by the stopper screw 29 engaging with the engaging corner 30 of the lock lever 6. Consequently, the table 3 is prevented from rotating and retains the horizontal state. Then the handle 14 is held to lower the main body 11 in which the blade saw 15 is rotating, so that a workpiece disposed on the turntable 7 can be cut, specifically, the bevel cutting by tilting the main body 11 and the miter cutting by horizontally turning the turntable 7 are achieved.
  • the main body 11 is lowered to the bottom dead center to be secured by the locking mechanism 18. Then the operating lever 26 of the lock lever 6 is pressed to move the lock lever 6 to the lock release position. Then, as shown in a two-dot chain line of Figs. 3 and 5, the engaging corner 30 is retracted to the back position of the stopper screw 29 from the lower position thereof, allowing the stopper screw 29 to be lowered. As a result, the table 3 can be turned 180 degrees by flipping up the front part of the table 3 to the second rotating position. Here, when the lock lever 6 is released, the lock lever 6 again returns to the locking position.
  • the stopper screw 28 of the table 3 abuts the inclined guide portion 31 of the hook portion 27 from above the lock lever 6.
  • the lock lever 6 is pressed downward by the stopper screw 28 to allow the table 3 to be rotated until the table 3 abuts the second stopper rubbers 21, 21 at the rear.
  • the inclined guide portion 31 is separated from the stopper screw 28, and thus the lock lever 6 is released from the pressure of the stopper screw 28 to be rotated to the locking position urged by the torsion spring 25.
  • the hook portion 27 is engaged with the stopper screw 28. Consequently, the table 3 is prevented from rotating by the lock lever 6 and retains the horizontal state, whereby conversion into the table saw mode is completed.
  • the operating lever 26 is pressed to rotate the lock lever 6.
  • the hook portion 27 is released from the stopper screw 28, so that the table 3 is turned 180 degrees by flipping up the rear part thereof.
  • the stopper screw 29 abuts the inclined guide portion 32 of the engaging corner 30 of the lock lever 6 from below.
  • the stopper screw 29 once moves the lock lever 6 in the counterclockwise direction in Fig. 5 in a manner that pushes aside the lock lever 6, resulting that the stopper screw 29 moves above the engaging corner 30.
  • This operation allows the table 3 to rotate until it abuts the first stopper rubbers 20, 20. Consequently, return to the miter saw mode is completed with the rotating position in Fig. 3.
  • the base 2 includes one lock lever 6, which has an engaging corner 30 to engage with the table 3 at the first rotating position and a hook portion 27 to engage with the table 3 at the second rotating position.
  • the lock lever 6 is movable between the locking position and the lock release position where it engages either the engaging corner 30 or the hook portion 27 respectively in accordance with each rotating position of the table 3.
  • the lock lever 6 is positioned at the same locking position to engage with the table 3 even when either the engaging corner 30 or the hook portion 27 is engaged.
  • a biasing means is provided to urge the lock lever 6 to the locking position. Because of this, lock release of the table 3 from either of the rotating positions can be conducted through the same operation, that is, pressing the operating lever 26 downward, whereby the operability is excellent.
  • the biasing means ensures the return to the locking position from the lock release position, which enables to keep the table 3 in a locking state and thus operability is improved.
  • the engaging corner 30 and the hook portion 27 have inclined guide portions 31, 32 which retract the lock lever 6 to the lock release position in abutment with the table 3 moving to each rotating position, thereby permitting the table 3 to be reversed. Consequently, automatic setback of the lock lever 6 at each rotating position can be achieved. Therefore, the lock lever 6 requires no operation to avoid interference with the table 3, whereby operability is further improved.
  • the structure for engagement between a locking member and a table is not limited to the above embodiment, and may be modified arbitrarily.
  • a hook shape may be applied to both the first engaging portion and the second engaging portion of the locking member.
  • the table may be provided with a ring member, a hook or a hole instead of a stopper screw.
  • the structure of an inclined guide portion is not limited to be a linear inclination as described above, and a bulging or curved inclination may be applied. Further, either the first engaging portion or second engaging portion may have inclination, or both of them may be omitted.
  • the structure of the locking member may be changed, such as the pivot point of the locking member may be provided at the center thereof, the locking member may be formed in a rod shape and so on.
  • the locking member can be slid between a locking position and a lock release position linearly.
  • a biasing means a coil spring or a plate spring may be used, or alternatively, the locking position and the lock release position can be changed manually without a biasing means.
  • the locking structure may be disposed before or behind the table to engage with or disengage from the table, not limited to the above-described structure where the locking member is engaged with or disengaged from the lateral side of the table, being disposed on the corresponding side of the base.
  • the lock lever 6 is moved to the same locking position when the table 3 is engaged with either the engaging corner 30 as the first engaging portion or the hook portion 27 as the second engaging portion.
  • each engaging portion is moved in the different directions for engagement or disengagement in accordance with its position or shape.
  • the structure of the flip over saw itself is not limited to the above embodiment. That is, the following structures can be applied to the present invention, which are, the height of the table is constant at the first or second rotating position, the main body can be tilted to right and left, or bevel cutting and miter cutting are excluded.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Sawing (AREA)
EP20050016702 2004-08-04 2005-08-01 Eine zwischen einer Übertisch- und einer Untertischlage verschwenkbare Säge Active EP1623801B9 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004228421A JP2006044067A (ja) 2004-08-04 2004-08-04 フリップオーバーソー

Publications (3)

Publication Number Publication Date
EP1623801A1 true EP1623801A1 (de) 2006-02-08
EP1623801B1 EP1623801B1 (de) 2008-10-08
EP1623801B9 EP1623801B9 (de) 2009-03-04

Family

ID=35045099

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20050016702 Active EP1623801B9 (de) 2004-08-04 2005-08-01 Eine zwischen einer Übertisch- und einer Untertischlage verschwenkbare Säge

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EP (1) EP1623801B9 (de)
JP (1) JP2006044067A (de)
CN (1) CN100352587C (de)
DE (2) DE602005010157D1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1842613A1 (de) 2006-04-05 2007-10-10 Black & Decker, Inc. Umschwenkbare Säge
CN113500348A (zh) * 2021-07-30 2021-10-15 泰和县鹏翔挂车制造有限公司 一种半挂车车厢焊接姿态调整装置

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101284318A (zh) * 2007-04-10 2008-10-15 张建江 复合台锯机头翻转结构
CN104175369B (zh) * 2014-08-29 2016-03-30 志邦厨柜股份有限公司 一种厨柜生产用立铣设备

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3570564A (en) * 1968-01-03 1971-03-16 Lutz Kg Maschf Eugen Convertible circular bench saw and mitering saw
US4531441A (en) * 1981-02-19 1985-07-30 Eugen Lutz Gmbh & Co. Maschinenfabrik Combination table and miter saw
EP0234215A1 (de) * 1986-02-28 1987-09-02 Black & Decker Overseas AG Rasteinrichtung für eine Tisch- und Gehrungssäge

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1233013A (de) * 1968-01-03 1971-05-26
DE7621408U1 (de) * 1976-07-07 1977-12-29 Gotthold Haffner Gmbh + Co, 7136 Oetisheim Werkstuecktisch zum wechselweisen anbau einer handkreissaege als tischsaege oder als kappsaege
DE4019222C2 (de) 1990-06-15 1996-06-13 Elektra Beckum Ag Sägeeinrichtung mit einer um 180 Grad wendbar gelagerten Grundplatte
GB9218388D0 (en) * 1992-08-28 1992-10-14 Black & Decker Inc Pivoting table with power tool
GB9218363D0 (en) * 1992-08-28 1992-10-14 Black & Decker Inc Pivoting power tool with table

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3570564A (en) * 1968-01-03 1971-03-16 Lutz Kg Maschf Eugen Convertible circular bench saw and mitering saw
US4531441A (en) * 1981-02-19 1985-07-30 Eugen Lutz Gmbh & Co. Maschinenfabrik Combination table and miter saw
EP0234215A1 (de) * 1986-02-28 1987-09-02 Black & Decker Overseas AG Rasteinrichtung für eine Tisch- und Gehrungssäge

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1842613A1 (de) 2006-04-05 2007-10-10 Black & Decker, Inc. Umschwenkbare Säge
EP1930110A2 (de) 2006-04-05 2008-06-11 Black & Decker, Inc. Umschwenkbare Säge
CN113500348A (zh) * 2021-07-30 2021-10-15 泰和县鹏翔挂车制造有限公司 一种半挂车车厢焊接姿态调整装置

Also Published As

Publication number Publication date
DE602005010157D1 (de) 2008-11-20
DE202005021524U1 (de) 2008-06-12
JP2006044067A (ja) 2006-02-16
CN100352587C (zh) 2007-12-05
EP1623801B9 (de) 2009-03-04
EP1623801B1 (de) 2008-10-08
CN1733404A (zh) 2006-02-15

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