摘要:
An accessory tool for an oscillating power tool includes a blade portion including a first lateral edge portion, a second lateral edge portion, and a leading edge portion, the leading edge portion defining a cutting edge. A reinforcement structure extends linearly across the blade portion from a first position located on the leading edge portion proximate the first lateral edge portion to a second position located on the second lateral edge portion and spaced apart from the leading edge portion. The reinforcement structure defines a cutting zone that encompasses a leading region of the blade portion between the reinforcement structure and the leading edge portion, the reinforcement structure being configured to increase a stiffness of the blade portion.
摘要:
According to one embodiment of the present invention, an electric knife is provided that includes a blade that is adapted to cut the pulp and shell of pumpkins and other fruits and vegetables but not readily cut the skin and flesh of humans. According to a preferred embodiment of the present invention, the electric knife also includes a shield that that is adapted to prevent fruit or vegetable matter from entering the housing of the electric knife.
摘要:
To floatingly support a saw blade in a frame, the frame is formed, at its free ends, with forked elements; clamping elements are clamped to the saw. The engagement between the forked element (the blade fitting between the gap in the fork) and the clamping element is by means of a depression-projection fulcrum engagement, so that the clamping element, to which the saw blade is attached, can rock or tilt with respect to the forked element, attached to the frame, thus avoiding holding stresses on the saw blade which lead to breakage of the blade at the attachment or clamping points.
摘要:
A powered coping and profile cutting and/or sanding apparatus is able to impart any shape to the surface of a body of material (17) at any angle, simple or compound, relative to the body of material. The apparatus comprises a reciprocating "frame"(36) encasing thin stacking metal sheets (42) which are adjustable in a forward/backward direction for allowing multiple shape setups. The sheets (42), which are oriented vertically, have saw teeth at their top sections (42a) and no teeth at their bottom sections (42b). Adhesive-backed sandpaper (78) is affixed to the bottom section (42b) after the shape is set. This allows a cutting phase and a sanding phase with the same profile. The entire reciprocating frame (36) pivots multidirectionally within two planes, and may be locked at any angle. The reciprocating frame (36) is movable in a forward/backward direction. The body of material (17) being cut is immovably clamped, and the frame (36) is moved into the body of material (17) for the cutting and/or sanding operation.
摘要:
A power saw has a sword having side walls which form a groove-shaped guide, and two parallel oppositely reciprocable saw blades having one longitudinal side provided with saw teeth and another longitudinal side provided with backs which are guided in the groove-shaped guide. The groove-shaped guide is interrupted by a plurality of recesses.
摘要:
To floatingly support a saw blade in a frame, the frame is formed, at its free ends, with forked elements; clamping elements are clamped to the saw. The engagement between the forked element (the blade fitting between the gap in the fork) and the clamping element is by means of a depression-projection fulcrum engagement, so that the clamping element, to which the saw blade is attached, can rock or tilt with respect to the forked element, attached to the frame, thus avoiding holding stresses on the saw blade which lead to breakage of the blade at the attachment or clamping points.
摘要:
A vertical saw machine includes a column with upper and lower supports carrying a motor to drive a saw blade. A table is disposed between the upper and lower supports for supporting a workpiece. The saw blade intersects the table with an included angle. The column is turnable between normal and inclined positions to vary the included angle. A frame post is mounted under the table to be positioned on the ground surface. A key slot and a key member are disposed respectively in and on the frame post and the column, and confine an arcuate guiding route to retainingly guide the column to move between the two positions.
摘要:
A saw blade connector (20) for a hand tool is provided. The saw blade connector includes a shaft (34) having a first end (36) adapted to be releasably attached to a hand tool, and a lock mechanism (32). The lock mechanism is operatively coupled to the shaft for reciprocating movement between a locked position, where at least a portion of the lock mechanism engages a saw blade (22) when the saw blade is coupled to the saw blade connector, and an unlocked position.