Sawing machine having control handle featuring three-stage adjustment function
AssigneeRexon Industrial Corp., Ltd.
InventorsThing-Tai Chou, Cheng-Hsun Tsai
Life of this patent
Estimating the term…
Abstract
A sawing machine includes a base, a pivot mount connected with the base, a support post rotatably connected with the pivot mount, a rocker arm pivotally connected with the support post, a saw blade rotatably mounted to the rocker arm, and a bevel angle control mechanism including a control handle pivotally disposed with a front side of the base and rotatable at different angles, a pull rod unit, a positioning pin unit, a positioning turntable, and a retaining block. With the collaboration among the control handle, the pull rod unit, the positioning pin unit, the positioning turntable, and the retaining block, a three-stage adjustment functions of locking, unlocking, and disengaging at specific angles can be achieved.
Claims8
A sawing machine, comprising:
- a base assembly including a base and a pivot mount connected with a rear side of the base;
- a sawing assembly including a support post rotatably connected with the pivot mount and rotatable about a rotation axis, a rocker arm pivotally connected with the support post and swingable towards the base assembly, a saw blade rotatably mounted to the rocker arm, and a driving device disposed with the rocker arm to drive the saw blade to rotate;
- and
- a bevel angle control mechanism, comprising:
- a control handle pivotally disposed with a front side of the base and rotatable among a locked position, an unlocked position, and a disengaged position;
- a pull rod unit disposed with the base and provided with a pull rod connected with the control handle in a way that the pull rod is driven by the control handle to move along an axial direction of the pull rod;
- a positioning pin unit disposed with the base, connected with the pull rod, and provided with a positioning pin in a way that the positioning pin moves along with the pull rod in a direction parallel to the axial direction of the pull rod and opposite to a moving direction of the pull rod;
- a positioning turntable mounted to the support post and rotatable with the support post, the positioning turntable including an arc groove and at least one positioning hole, wherein the pull rod passes through the arc groove;
- and
- a retaining block mounted on an end of the pull rod remote from the control handle;
- wherein when the control handle is in the locked position, the retaining block firmly presses against the positioning turntable, and an end of the positioning pin is stopped against a front side of the positioning turntable or inserted into the at least one positioning hole;
- wherein when the control handle is in the unlocked position, the retaining block is disengaged from the positioning turntable, and the end of the positioning pin is stopped against the front side of the positioning turntable or inserted into the at least one positioning hole;
- and
- wherein when the control handle is in the disengaged position, the retaining block is disengaged from the positioning turntable, and the end of the positioning pin is disengaged from the at least one positioning hole.
Dependencies are inferred from the claim text.