Cutting tool

Patent metadata

Field	Value
Publication number	US-11027453-B2
Application number	US-201816229811-A
Country	US
Kind code	B2
Filing date	Dec 21, 2018
Priority date	Jul 1, 2016
Publication date	Jun 8, 2021
Grant date	Jun 8, 2021

Abstract

Embodiments of the invention provides a cutting tool. The cutting tool includes a housing; a motor, accommodated in the housing; a transmission mechanism, connected to the motor and used for driving a saw blade, having a saw blade plane; and base plates, connected to the housing and comprising a first base plate provided with a first bottom surface and a second base plate provided with a second bottom surface, wherein at least one of the first base plate and the second base plate is provided with an abutting surface coplanar with the saw blade plane; the abutting surface is used for being matched with a guide surface, and the first base plate and the second base plate are movable to expose the abutting surface.

First claim

What is claimed is:

1. A cutting tool, used for cutting with a guide device being provided with a guide surface, the cutting tool comprising;
a housing;
a motor, accommodated in the housing;
a transmission mechanism being configured to be connected to the motor and used for driving a saw blade, wherein the saw blade is provided with a saw blade plane;
base plates connected to the housing, wherein the base plates comprise a first base plate provided with a first bottom surface and a second base plate provided with a second bottom surface;
a connecting mechanism disposed between the first base late and the second base plate; and
a mode switching mechanism comprising s topping member movable connected to one of the first base plate and the second base plate and a stopping matching portion selectively matched with the stopping member;
wherein at least one of the first base plate and the second base plate is provided with an abutting surface coplanar with the saw blade plane for being matched with the guide surface, and the first base plate and the second base plate are relatively movable to expose the abutting surface; and
wherein the first baseplate is provided with a saw blade groove for the saw blade to pass through; and
wherein the connecting mechanism is disposed between the first base plate and the second base plate, such that the first bottom surface has a first position coplanar with the second bottom surface and a second position staggered perpendicular to a rotational axis of the saw blade and non-coplanar with the second bottom surface; and
wherein when in the first position, the second base plate is flush with the first base plate to enclose the saw blade in the saw blade groove.

2. The cutting tool according to claim 1 , wherein the first base plate is translational relative to the second base plate by connecting mechanism.

3. The cutting tool according to claim 2 , wherein the connecting mechanism comprises a swing arm, one end of the swing arm is pivotally connected with the first base plate by a first pivoting shaft, the other end of the swing arm is pivotally connected with the second base plate by a second pivoting shaft, and the first pivoting shaft and the second pivoting shaft are perpendicular to the abutting surface.

4. The cutting tool according to claim 1 , wherein the first base plate is slidable relative to the second base plate.

5. The cutting tool according to claim 1 , wherein the blade is provided with an end surface away from the transmission mechanism, the end surface is defined as a first lateral cutting plane, and the first lateral cutting plane and the abutting surface are coplanar.

6. The cutting tool according to claim 1 , wherein the blade is provided with an end surface away from the transmission mechanism, the end surface is defined as a first lateral cutting plane, and the first lateral cutting plane is positioned between the transmission mechanism and the abutting surface.

7. The cutting tool according to claim 1 , wherein the first base plate is provided with a first abutting surface, the second base plate is provided with a second abutting surface, and the first abutting surface and the second abutting surface are alternatively matched with the guide surface. transmission mechanism is defined as a second lateral cutting plane, the first lateral cutting plane and the first abutting surface are coplanar and the second lateral cutting plane and the second abutting surface are coplanar.

8. The cutting tool according to claim 1 , wherein the mode switching mechanism can be set in two positions, when it is in the first position, the mode switching mechanism prevents the relative movement of the first base plate and the second base plate; and when it is in the second position, the mode switching mechanism allows the relative movement of the first base plate and the second base plate.

9. The cutting tool according to claim 8 , wherein a maximal distance that the saw blade extends out of the first bottom surface is defined as a maximal cutting depth, when the mode switching mechanism is in the first position, the cutting tool is set by a first maximal cutting depth, when the mode switching mechanism is in the second position, the cutting tool is set by a second maximal cutting depth, and the second maximal cutting depth is smaller than the first maximal cutting depth.

10. The cutting tool according to claim 8 , wherein when the mode switching mechanism is in the second position, it prevents the saw blade from being inclined relative to the first bottom surface.

11. A cutting tool, comprising:
a housing;
a motor, accommodated in the housing;
a transmission mechanism, connected to the motor and used for driving a saw blade;
base plates, connected to the housing, and comprising a first base plate provided with a first bottom surface and a second base plate provided with a second bottom surface;
a connecting mechanism; and
a mode switching mechanism comprising a stopping member movable connected to one of the first base plate and the second base plate and a stopping matching portion selectively matched with the stopping member;
wherein the first base plate and the second base plate are movably connected by the connecting mechanism, such that the base plates can be set in a first position where the first bottom surface and the second bottom surface are coplanar such that the first base plate is flush with the second base plate to enclose the saw blade in a saw blade groove, and a second position where the first bottom surface and the second bottom surface are staggered perpendicular to a rotational axis of the saw blade and non-coplanar.

12. A cutting tool, used tor cutting with a guide device being provided with a guide surface, the cutting tool comprising:
a housing; a motor, accommodated in the housing;
a transmission mechanism, connected to the motor and used tor driving a saw blade;
base plates comprising a first base plate provided with a first bottom surface and a second base plate provided with a second bottom surface;
a connecting mechanism; and
a mode switching mechanism, comprising a stopping member movably connected to one of the first base plate and the second base plate and a stopping matching portion selectively matched with the stopping member;
wherein the first base plate is connected to the housing and provided with a saw blade groove for the saw blade to pass through and an abutting surface; and
wherein the second base plate is movably connected to the first base plate by the connecting mechanism, and when the abutting surface is exposed to be matched with the guide surface, the first bottom surface and the second bottom surface are staggered perpendicular to a rotational axis of the saw blade and non-coplanar, and when the abutting surface is not exposed to be matched with the guide surface, the first bottom surface and the second bottom surface are coplanar such that the first base late is flush with the second base plate to enclose the saw blade in the saw blade groove.

Assignees

• Positec Power Tools Suzhou Co Ltd

Inventors

• Ma Yichun
• Zhang Shisong
• Zhong Hongfeng
• Zhang Xiangliang
• Xu Jingtao

Classifications

• B23D47/02 Primary

  of frames; of guiding arrangements for work-table or saw-carrier · CPC title

• B23D47/04

  of devices for feeding, positioning, clamping, or rotating work · CPC title

• B27B9/04 Primary

  Guiding equipment, e.g. for cutting panels {(circular sawing machines for dividing plates in parts of determined size, e.g. panels B27B5/06)} · CPC title