Portable band saw
AssigneeMakita Corporation
InventorsYuta Okuhira, Yukinori Suzuki, Yuki Fujiwara
Life of this patent
Estimating the term…
Abstract
A portable band saw reduces the overall size increase when a larger controller is included. A portable band saw includes a first saw wheel, a second saw wheel, a band saw blade placed on the first and second saw wheels, a motor that drives the first saw wheel and has a rotation axis in a front-rear direction, a controller that controls the motor, and a housing including a first housing accommodating the first saw wheel, a second housing accommodating the second saw wheel, and a bridge housing accommodating the motor between the first and second housings. The band saw blade is at least partly in an opening below the bridge housing. The controller is in the bridge housing with its maximum surface facing upward.
Claims9
A portable band saw, comprising:
- a first saw wheel;
- a second saw wheel;
- a motor (i) configured to drive the first saw wheel and (ii) having a motor rotation axis defining a front-rear direction of the portable band saw;
- a band saw blade that (i) engages the first saw wheel and the second saw wheel and (ii) is configured to be driven by the first saw wheel;
- a housing including
- a first housing accommodating the first saw wheel,
- a second housing (i) accommodating the second saw wheel and (ii) spaced from the first housing in the front-rear direction;
- and
- a bridge housing (i) directly between the first housing and the second housing in the front-rear direction, (ii) connecting the first housing and the second housing and (iii) accommodating the motor in an internal space of the bridge housing;
- and
- a controller (i) configured to control the motor, (ii) in the internal space and (iii) having a maximum surface that is inclined in an up-down direction of the portable band saw relative to the motor rotation axis, the up-down direction being perpendicular to the front-rear direction;
- wherein:
- the first housing, the second housing and the bridge housing define an opening (i) between the first housing and the second housing in the front-rear direction and (ii) below the bridge housing in the up-down direction;
- the maximum surface of the controller is a surface of the controller that has a largest area when viewed perpendicular to the surface;
- an entirety of the controller is above the motor rotation axis;
- and
- the controller at least partly overlaps the motor in the front-rear direction,
- the controller includes a first portion outside a largest diameter portion of the motor and a second portion inside the largest diameter portion of the motor in a radial direction of the motor rotation axis,
- the first housing is behind the bridge housing,
- the second housing is in front of the bridge housing, and
- the entire second portion is frontward from the motor.
Dependencies are inferred from the claim text.