JP2002018810A5 - - Google Patents

Claims (9)

A main body having a built-in electric motor, a saw blade rotatably attached to the main body and driven by the electric motor, a base rotatably attached to the lower portion of the main body so that a lower portion of the saw blade protrudes from the lower surface, A gear cover provided on the main body and positioned on a side surface of the saw blade above the base, and a saw cover facing the gear cover and substantially covering a side opposite to the main body side of the saw blade above the base, the saw cover and the gear cover And a discharge passage formed on the outer peripheral extension line of the saw blade so that the chips generated during the operation are guided by the rotational force of the saw blade, and a circular cross section in communication with the discharge passage. In a portable dust collection circular saw with a discharge port,
The mounting portion that can be engaged with the chip discharge port, a curved surface portion that is continuous with the mounting portion, and side wall portions that are provided on both sides of the curved surface portion, and a portion that faces the curved surface portion is opened. A dust guide for portable dust collection circular saw characterized by its shape. 2. The dust guide for a portable dust collecting circular saw according to claim 1, wherein a cross-sectional shape formed by the curved surface portion and the side wall portion is substantially U-shaped. 2. The dust guide for a portable dust collecting circular saw according to claim 1, wherein a cross-sectional shape formed by the curved surface portion and the side wall portion has a substantially concave shape. 2. The dust guide for a portable dust collecting circular saw according to claim 1, wherein a length dimension from the upper end of the curved surface part to a lower end of the side wall part is made larger than an outer diameter dimension of the discharge port. 2. A dust guide for a portable dust collecting circular saw according to claim 1, wherein a cross-sectional shape of the mounting portion is circular. 2. The dust guide for a portable dust collecting circular saw according to claim 1, wherein a cross-sectional shape of the mounting portion is a circular shape with a part opened. 7. The portable device according to claim 5, wherein an inner diameter dimension of the attachment portion is made smaller than an outer diameter dimension of the discharge port, and the attachment portion is attached to the discharge port by an elastic force of the attachment portion. Dust guide for dust collecting circular saw. The dust guide for a portable dust collecting circular saw according to claim 1 or 5, wherein positioning means capable of adjusting an attachment position in a rotation direction is provided at the attachment portion and the discharge port. A main body incorporating an electric motor, a saw blade rotatably attached to the main body and driven by the electric motor, a base rotatably attached to the lower portion of the main body, and a lower part of the saw blade projecting from a lower surface; A gear cover provided on the main body and positioned on a side surface of the saw blade above the base; and a saw cover that faces the gear cover and substantially covers a non-main body side surface of the saw blade above the base, the saw cover and the gear cover A discharge passage which is formed on the outer peripheral extension line of the saw blade and is generated by the rotation of the saw blade and guided by the rotational force of the saw blade, and a circular cross section in communication with the discharge passage. In a portable circular saw with a discharge port,
The mounting portion engageable with the chip discharge port, a curved surface portion continuous with the mounting portion, and side wall portions provided on both sides of the curved surface portion, and a portion facing the curved surface portion is opened. A portable circular saw characterized in that a dust guide having a shape is detachably provided.