Cutting tool

Patent metadata

Field	Value
Publication number	US-2019118317-A1
Application number	US-201816219507-A
Country	US
Kind code	A1
Filing date	Dec 13, 2018
Priority date	Jun 30, 2016
Publication date	Apr 25, 2019
Grant date	—

Abstract

Provided is a cutting tool that includes a cutting head, a frame, a working table, a guiding rail assembly, and a fence. The cutting head is configured to perform a cutting function. The frame is configured to support the cutting head. The working table is configured to place an object to be cut. The guiding rail assembly is configured to enable the working table to slide along a first straight line relative to the frame. The fence is mounted to the working table, includes at least one fence surface extending in a direction perpendicular to the first straight line. The cutting tool enables a workpiece to be cut to be stably placed on the working table during a cutting operation.

First claim

What is claimed is:

1 . A cutting tool, comprising:
a cutting head configured to cut an object; a frame configured to support the cutting head; and a working table configured to place the object; a guiding rail assembly configured to enable the working table to slide along a first straight line relative to the frame; a fence mounted to the working table and comprising at least one fence surface extending in a direction perpendicular to the first straight line; and an extension table configured to be detachably mounted to a left side or a right side of the working table; wherein the working table comprises: a right mounting structure configured to mount the extension table to the right side of the working table; and a left mounting structure configured to mount the extension table to the left side of the working table.

2 . The cutting tool according to claim 1 , wherein the extension table is provided with a locking structure configured to mate with the right mounting structure and the left mounting structure to lock the connection of the working table and the extension table.

3 . The cutting tool according to claim 1 , wherein when the extension table is mounted to the right side of the working table, a front surface of the extension table faces upward; and
when the extension table is mounted to the left side of the working table, a rear surface of the extension table faces upward.

4 . The cutting tool according to claim 3 , further comprising:
an angle guide assembly detachably mounted to the working table; wherein the angle guide assembly comprises: a slider slidably mounted to the working table; and an angle guide body rotatably connected to the slider;
wherein the working table is provided with a main chute configured to guide the slider to slide;
wherein the front surface of the extension table is provided with a front chute configured to dock with the main chute to enable the slider to slide to the extension table when the expansion table is mounted to the right side of the working table with the front surface facing upward; and
the rear surface of the extension table is provided with a rear chute configured to dock with the main chute to enable the slider to slide to the extension table when the expansion table is mounted to the left side of the working table with the rear surface facing upward.

5 . The cutting tool according to claim 3 , wherein the extension table is connected or formed with:
an extension fence configured to stop the object on the extension table when the extension table is mounted to one side of the working table; wherein the fence is substantially aligned with the extension fence when the extension table is mounted to the one side of the working table.

6 . The cutting tool according to claim 5 , wherein the expansion fence has two mounting positions relative the extension table;
when the expansion fence is disposed in one of the two mounting positions, the extension fence protrudes from the front surface of the extension table; and when the expansion fence is disposed in the other of the two mounting positions, the extension fence protrudes from the rear surface of the extension table.

7 . The cutting tool according to claim 1 , wherein the fence is detachably connected to the working table.

8 . The cutting tool according to claim 7 , wherein the working table is provided with a threaded hole, and the fence is detachably mounted to the working table via fitting of a bolt with the threaded hole.

9 . The cutting tool according to claim 1 , further comprising:
a supporting assembly configured to support one side of the object at a higher position than the working table.

10 . The cutting tool according to claim 9 , wherein the supporting assembly comprises:
two supporting legs rotatably connected to the working table; and a contacting plate configured to directly contact the object; wherein the contacting plate is disposed between the two support legs.

11 . The cutting tool according to claim 1 , further comprising:
an angle guide assembly slidably disposed on the working table along a second straight line; wherein the angle guide assembly comprises: a guide disc provided with a guiding rail; a guide pin configured to slide along a guiding path of the guiding rail; a guide rule connected with the guide disc; wherein the guide rule is formed with a abutment surface, wherein the abutment surface is perpendicular to the second straight line when the guide pin is in a first position inside the guiding rail, and obliquely intersects with the second straight line when the guide pin is in a second position inside the guiding rail.

12 . The cutting tool according to claim 11 , wherein the guiding path of the guiding rail extends along a circular arc.

13 . The cutting tool according to claim 12 , wherein the working table is provided with a main chute extending along the second straight line; and
wherein the angle guide assembly comprises: a slider configured to slide along a direction in which the main chute extends.

14 . The cutting tool according to claim 13 , wherein the angle guide assembly further comprises:
an insert comprising an extension portion that protrudes in a direction perpendicular to the working table to contact one side of the working table when the slider slides to an edge of the working table.

15 . The cutting tool according to claim 14 , wherein the guide rule is disposed on a side of the fence surface adjacent to the cutting head; and
the gird further defines a notch, at which are formed a first auxiliary surface running parallel to or coinciding with the abutment surface and a second auxiliary surface perpendicular to the first auxiliary surface.

16 . The cutting tool according to claim 1 , further comprising:
a water basin configured to store water; a water tray at least partially disposed between the cutting head and the water basin; wherein the water tray at least partially runs beyond the water basin along a direction of the first straight line; and wherein the water tray is formed or coupled with a guide portion operative to guide the water tray to slide relative to the water basin in a direction parallel to the first straight line.

17 . The cutting tool according to claim 16 , wherein the water tray comprises:
a main water tray joined with the guiding rail assembly via a slidable connection; and an extension water tray joined with the main water tray via a rotatable connection; wherein an rotating axis of the extension water tray rotating relative to the main water tray is parallel to the first straight line.

18 . The cutting tool according to claim 1 , further comprising:
a water basin configured to store water; a movable member joined with the frame via a movable connection that enables the movable member to switch between a first movable position and a second movable position; a biased pressing member configured to press the movable member in a biased manner to move toward the first movable position; and an operating member configured to drive the movable member to overcome a biased press of the biased pressing member to move toward the second movable position when operated by a user; wherein the water basin is further formed with a jointing portion, which is coupled with the movable member when the movable member moves to the first movable position and is disengaged from the movable member when the movable member moves to the second movable position.

19 . The cutting tool

Assignees

• Nanjing Chervon Ind Co Ltd

Inventors

• Chen Zhifeng
• Pan Zhigang
• Cao Yang
• Xu Yu

Classifications

• B23Q3/005 Primary

  Guides for workpieces · CPC title

• B26D7/01

  Means for holding or positioning work · CPC title

• B26D7/0006

  Means for guiding the cutter (for hand knives B26B29/06; for band-knives B26D1/54) · CPC title

• B26D1/18 Primary

  mounted on a movable carriage · CPC title

• B23Q11/10

  Arrangements for cooling or lubricating tools or work · CPC title