Cutting machine

Patent metadata

Field	Value
Publication number	US-11897044-B2
Application number	US-202117504704-A
Country	US
Kind code	B2
Filing date	Oct 19, 2021
Priority date	Dec 8, 2020
Publication date	Feb 13, 2024
Grant date	Feb 13, 2024

Abstract

A fine adjuster for finely adjusting the lateral tilt position of a cutting machine body has improved operability. A cutting machine includes a table, a cutting machine body, a tilting member supporting the cutting machine body in a manner laterally tiltable relative to the table, a tilting locking member, and a lever member to adjust the tilt position of the cutting machine body. The lever member includes a fulcrum coupled to the table in a manner rotatable about an axis, a load point coupled to the tilting member, and an effort point extending from the fulcrum and located at a distance from the fulcrum greater than a distance between the fulcrum and the load point.

First claim

What is claimed is:

1. A cutting machine, comprising:
a table on which a workpiece is placeable;
a cutting machine body vertically movable relative to the table, the cutting machine body capable of holding a blade;
a tilting body supporting the cutting machine body in a manner laterally tiltable relative to the table;
a tilting lock configured to lock the cutting machine body at a tilt position;
a lever member operable to adjust the tilt position of the cutting machine body in an unlocked state of the tilting lock, the lever member including
a fulcrum directly or indirectly coupled to the table in a manner rotatable about an axis,
a load point portion coupled to the tilting body, and
an effort point portion extending from the fulcrum and located at a distance from the fulcrum greater than a distance between the fulcrum and the load point portion; and

a tilting mount tiltably supporting the tilting body; and
an auxiliary member between the lever member and the tilting mount, the auxiliary member including an auxiliary fulcrum, an auxiliary load point portion, and an auxiliary effort point portion,
wherein one of the auxiliary fulcrum or the auxiliary load point portion is coupled to the tilting mount and another of the auxiliary fulcrum or the auxiliary load point portion is coupled to the lever member, and
wherein a distance between the auxiliary effort point portion and the auxiliary fulcrum is greater than a distance between the auxiliary load point portion and the auxiliary fulcrum.

2. The cutting machine according to claim 1 , wherein
the lever member includes
the fulcrum in a middle area of the lever member in a longitudinal direction,
the load point portion at a first end of the lever member in the longitudinal direction, and
the effort point portion at a second end of the lever member in the longitudinal direction, with the fulcrum between the load point portion and the effort point portion.

3. The cutting machine according to claim 2 , wherein
the effort point portion protrudes laterally from the fulcrum farther than a side of the tilting body and is vertically tiltable.

4. The cutting machine according to claim 2 , wherein
the tilting body has a relief, and
the fulcrum is coupled to the table through the relief.

5. The cutting machine according to claim 1 , wherein
the effort point portion protrudes laterally from the fulcrum farther than a side of the tilting body and is vertically tiltable.

6. The cutting machine according to claim 5 , wherein
the tilting body has a relief, and
the fulcrum is coupled to the table through the relief.

7. The cutting machine according to claim 1 , wherein
the auxiliary fulcrum is coupled to the tilting mount, and
the auxiliary load point portion is coupled to the effort point portion in the lever member.

8. The cutting machine according to claim 7 , wherein
the tilting body and the auxiliary member are located frontward from the lever member in a direction of a tilting axis of the tilting body.

9. The cutting machine according to claim 7 , wherein
the fulcrum and the auxiliary fulcrum each include a rotation axis, and the rotation axis of the fulcrum and the rotation axis of the auxiliary fulcrum are parallel to each other.

10. The cutting machine according to claim 7 , wherein
the tilting body has a relief, and
the fulcrum is coupled to the table through the relief.

11. The cutting machine according to claim 1 , wherein
the tilting body and the auxiliary member are located frontward from the lever member in a direction of a tilting axis of the tilting body.

12. The cutting machine according to claim 11 , wherein
the fulcrum and the auxiliary fulcrum each include a rotation axis, and the rotation axis of the fulcrum and the rotation axis of the auxiliary fulcrum are parallel to each other.

13. The cutting machine according to claim 1 , wherein
the fulcrum and the auxiliary fulcrum each include a rotation axis, and the rotation axis of the fulcrum and the rotation axis of the auxiliary fulcrum are parallel to each other.

14. The cutting machine according to claim 1 , wherein
the tilting body has a relief, and
the fulcrum is coupled to the table through the relief.

15. The cutting machine according to claim 14 , wherein
the relief includes an elongated slot along an arc having a center aligned with a tilting axis of the tilting body.

16. A cutting machine, comprising:
a table on which a workpiece is placeable;
a cutting machine body vertically movable relative to the table, the cutting machine body capable of holding a blade;
a tilting body supporting the cutting machine body in a manner laterally tiltable relative to the table;
a tilting lock configured to lock the cutting machine body at a tilt position;
a lever member operable to adjust the tilt position of the cutting machine body in an unlocked state of the tilting lock, the lever member including
a fulcrum coupled to the table in a manner rotatable about an axis,
a load point portion coupled to the tilting body, and
an arm extending from the fulcrum;

a tilting mount tiltably supporting the tilting body; and
an auxiliary member between the lever member and the tilting mount, the auxiliary member including an auxiliary fulcrum, an auxiliary load point portion, and an auxiliary effort point portion,
wherein one of the auxiliary fulcrum or the auxiliary load point portion is coupled to the tilting mount and another of the auxiliary fulcrum or the auxiliary load point portion is coupled to the lever member, and
wherein a distance between the auxiliary effort point portion and the auxiliary fulcrum is greater than a distance between the auxiliary load point portion and the auxiliary fulcrum.

Assignees

• Makita Corp

Inventors

• Suzuki Yukinori
• Kani Toshiyuki

Classifications

• B23D45/044 Primary

  the saw blade being adjustable according to angle of cut (B23D45/025 takes precedence) · CPC title

• B27B5/24

  the saw blade being adjustable according to depth or angle of cut · CPC title

• B27B5/29 Primary

  Details; Component parts; Accessories · CPC title

• B23D47/02 Primary

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

• B23D47/00

  Sawing machines or sawing devices working with circular saw blades, characterised only by constructional features of particular parts (constructional features of these parts per se B23Q; details or components, e.g. casings, bodies, of portable power-driven tools not particularly related to the operation performed B25F5/00) · CPC title