5results about "Cross-cut reciprocating saws" patented technology

Device (100) for sawing logs to a predetermined length, comprising a rotatably mounted saw drum (110) which is non-rotatably connected to a driven rotating shaft (105), wherein the saw drum (110) has a plurality of feed slots (120) for feeding logs to be sawn, wherein the saw drum (110) together with each of the feed slots (120) is divided into two parts and an upper part of a feed slot (120) is arranged in an upper saw drum part (111) and a lower part of a corresponding feed slot (120) is arranged in a lower saw drum part (112) and the saw blade (131) of a circular saw (130) partially engages in a gap between the upper saw drum part (111) and a corresponding lower saw drum part (112), wherein by rotation of the saw drum (110) each feed slot (120) is brought into the effective area of ​​the saw blade (131) of the circular saw (130) is reached, characterized by that the rotating shaft (105) is arranged at an angle of 30° to 60° to the horizontal, and the upper saw drum part (111) has a lower stop (107) on its lower side, which is supported against an upper stop on the upper side of the lower saw drum part (112) forming the gap, wherein the upper saw drum part (111) is mounted so as to be displaceable upwards along the rotating shaft (105) against the force of gravity and the displacement of the upper saw drum part (111) is limited by an upper stop (106) of the rotating shaft (105), and the lower saw drum part (112) is mounted so as not to be displaceable along the rotating shaft (105), wherein, in the event of a larger saw chip falling in and becoming trapped between the upper saw drum part (111) and the saw blade (131) of the circular saw (130), the action of the saw chip causes a lower limiting edge of the upper saw drum part (111) to be moved upwards along the rotating shaft (105) against the force of gravity, thereby increasing the gap between the saw blade (131) of the circular saw (130) and the lower limiting edge of the upper saw drum part (111) and automatically freeing the saw chip from its jammed position.

A reciprocating power tool may include a driving system including a motor and a transmission received in a housing to drive a reciprocating mechanism. A selection mechanism may provide for selection of an operation mode of the reciprocating tool, including a linear mode of operation and at least one orbital mode of operation. Motion of a reciprocating shaft of the reciprocating mechanism may be guided by a guide bracket that is fixed in the housing and an orbit bushing that is movably coupled in the housing. In the linear mode of operation of the tool, the bushing is in a first position relative to the guide bracket. In an orbital mode of operation of the tool, the bushing is moved to a second position relative to the guide bracket.

A handheld cutting tool (1) is disclosed, comprising: a cutting member (3) configured to reciprocate along a reciprocating motion axis (Ra); and a power source (5) configured to provide power to the cutting member (3). The cutting tool (1) further comprises: a body portion (2) including a handle (6, 6'); and a tool portion (4) including the cutting member (3) and a first abutting member (10) having a first abutting surface (10') configured to abut against an object (30) during cutting of an object (30) using the cutting member (3). The tool portion (4) is pivotally attached to the body portion (2) about a pivot axis (Pa).

Surgical instruments, systems, and methods for performing an osteotomy are disclosed herein. A surgical system includes a body with a distal end, a proximal end, a first surface, and a second surface. The surgical system can include cutting blades positioned on the first surface and / or the second surface. The surgical system can include columns of cutting blades positioned on the first surface and / or the second surface. The surgical system can include rows of cutting blades positioned on the first surface and / or the second surface.

The present invention relates to a chain milling apparatus (1) for milling bag-shaped grooves (2) in furniture panels (3) to accommodate furniture fittings (4), comprising at least one chain milling machine (5) having at least one linear guide (6) and at least one height-adjustable worktable (7), the at least one height-adjustable worktable (7) comprising a stop (8), a mating stop (9) having a support surface (10) for arranging the furniture panel (3) on the support surface (10), the support surface (10) being arranged substantially parallel to the stop (8), and at least one adjusting device (11) by means of which the distance (12) between the stop (8) and the mating stop (9) can be adjusted, the at least one chain milling machine (5) being able to partially mill along, particularly manually or automatically. The at least one linear guide (6) moves, particularly in a direction extending perpendicular to the end face (13) of the furniture board (3), to mill out a bag-shaped groove (2), and the at least one adjusting device (11) includes at least two adjusting elements (14, 15) and at least one synchronizing device (16), the at least two adjusting elements (14, 15) being kinetically coupled to each other by the at least one synchronizing device (16) such that when adjusting at least one of the at least two adjusting elements (14), at least one other adjusting element (15) of the at least two adjusting elements (14, 15) moves together simultaneously, particularly synchronously, particularly rotating together, thereby adjusting the gap (12) between the stop (8) and the mating stop (9).