摘要:
To provide a cutting machine that suppresses swinging of the cutting portion when the battery pack is attached or detached, the cutting machine includes a cutting portion, a base, and a swing support mechanism. The cutting portion includes: a motor, a motor housing accommodating the motor, an output shaft configured to be rotated upon rotation of the motor, a battery pack serving as a power source of the motor, and a battery pack attaching portion including a pair of rail portions with which the battery pack is engageable, where a cutting blade is configured to be detachably attached to the output shaft. The base has a contact surface on which a workpiece is configured to be placed. The swing support mechanism is connected to the base and the cutting portion and includes a swing shaft extending in parallel to the output shaft. The swing support mechanism supporting the cutting portion such that the cutting portion is swingable about the swing shaft between a top dead center and a bottom dead center in a direction parallel to a side surface of the cutting blade. The pair of rail portions extend in a direction crossing the side surface of the cutting blade.
摘要:
A miter saw (10) includes a base assembly (15), a bevel arm (50) pivotably coupled to the base assembly, and a saw unit (20) pivotably coupled to the bevel arm about a horizontal chop axis (25). The saw unit (20) includes a saw blade (185) rotatable about a blade axis (190) and a motor (195) having an output shaft (200) inclined at an oblique included angle relative to the blade axis (190). The miter saw also includes a guide rail (160) coupling the saw unit (20) to the base assembly (15) and a battery (245) selectively electrically connectable with the motor (195) to provide power to the motor. The bevel arm (50) and saw unit (20) are pivotable relative to the base assembly (15), from an orientation in which the saw blade (185) is substantially vertical, in both a first direction about the bevel axis (55) by a bevel angle of at least about 45 degrees and an opposite, second direction by a bevel angle of at least about 45 degrees.
摘要:
A flip-over saw (10) is disclosed, which consists of a saw assembly (20) mounted on a table (16) through a pivot (28) on a pivot member (26) which is itself pivoted about an axis (92) to a pivot block (27) fixed on the table (16). Pivot (28) enables the saw assembly (20) to pivot up and down to cut work-pieces supported on the table (16) against a fence (17). To enable bevel cuts to be effected on the workpieces, the saw assembly (20), through its pivot member (26), is pivotable about the axis (92). The pivot member (26) has a projection (88) which is received in a semi-circular slot (90) in the table (16). The projection (88) is retained at the centre of rotation of the pivot member (26). The pivot member (26) is supported on a segment of the pivot block (27) and secured thereto by a bolt (170). The pivot member (26) has an arcuate slot (173) through which to receive the bolt (170). The axis (92) is located between the table's upper and lower surfaces, and the use of the bolt (170) and slot (173) combination together with the projection (88) provides improved stability of the bevel pivot.
摘要:
Procédé pour pratiquer, en particulier dans une pièce de bois 1, une découpe 2, soit en bout de bois, soit en plein bois, à l'aide de moyens, tels que scies circulaires 3,4,4ʹ, agencées, suivant l'axe longitudinal 5 de la pièce de bois 1 et transversalement à cet axe, pour entailler ladite pièce de bois, lorsque celle-ci entre en contact avec les scies, suivant au moins deux plans sécants 7, 8 et installation pour la mise en oeuvre de ce procédé.
摘要:
A miter saw (10) includes a base assembly (15), a bevel arm (50) pivotably coupled to the base assembly, and a saw unit (20) pivotably coupled to the bevel arm about a horizontal chop axis (25). The saw unit (20) includes a saw blade (185) rotatable about a blade axis (190) and a motor (195) having an output shaft (200) inclined at an oblique included angle relative to the blade axis (190). The miter saw also includes a guide rail (160) coupling the saw unit (20) to the base assembly (15) and a battery (245) selectively electrically connectable with the motor (195) to provide power to the motor. The bevel arm (50) and saw unit (20) are pivotable relative to the base assembly (15), from an orientation in which the saw blade (185) is substantially vertical, in both a first direction about the bevel axis (55) by a bevel angle of at least about 45 degrees and an opposite, second direction by a bevel angle of at least about 45 degrees.
摘要:
Procédé pour pratiquer, en particulier dans une pièce de bois 1, une découpe 2, soit en bout de bois, soit en plein bois, à l'aide de moyens, tels que scies circulaires 3,4,4ʹ, agencées, suivant l'axe longitudinal 5 de la pièce de bois 1 et transversalement à cet axe, pour entailler ladite pièce de bois, lorsque celle-ci entre en contact avec les scies, suivant au moins deux plans sécants 7, 8 et installation pour la mise en oeuvre de ce procédé.
摘要:
A cutting apparatus for cutting the tubes of a nuclear steam generator which has spaced apart cutters (55) which are disposed at one end of a boom (27) movable in a plane transverse to the longitudinal axis of a closely packed tube bundle (3) to cut out segments from the tubes (5) starting at the periphery and working through the tube bundle (3) while moving the cutters closer together to provide clearance as the cutters (55) move deeper into the tube bundle (3).