US 11,148,324 B2Granted

Manual cutting machine

AssigneeRomway(Zj) Machinery Manufacturing Co., Ltd.

InventorsXiaoyu Xu, Runze Zhu

Life of this patent

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Abstract

A manual cutting machine includes a base plate. A front support and a rear support are fixedly arranged at two ends of the base plate. Sliding rods are mounted between the front support and the rear support. A slider is disposed around the sliding rods. A connecting block is hinged to the slider. A blade and a presser foot are connected to the bottom of the connecting rod. A push rod is connected to the top of the connecting block. The tail of the push rod is angled relative to the push rod. When the manual cutting machine is used for cutting and fracturing a board, motions of arms are reduced, and the motion range of an operator is narrowed, so that the operator can use the machine more easily and effortlessly. Meanwhile, oil can be added into an oil can to lubricate the slider in the using process.

Claims9

Dependent claims

A manual cutting machine, comprising a base plate, wherein a front support and a rear support are fixedly arranged at two ends of the base plate, and sliding rods are mounted between the front support and the rear support;

and a slider is disposed around the sliding rods, a connecting block is hinged to the slider, a blade and a presser foot are connected to a bottom of the connecting block, a push rod is connected to a top of the connecting block, and an angle is formed between a tail of the push rod and the push rod;
wherein a second rotary shaft penetrates through the presser foot and the connecting block, the presser foot rotates around the second rotary shaft and is provided with magnets, the connecting block is provided with an iron sheet which is attracted by the magnets, and a limiting plate is arranged at a bottom of the slider, so that when the push rod is rotated upwards away from the base plate until the presser foot abuts against the limiting plate, the magnets are separated from the iron sheet and then the presser foot rotates downward around the second rotary shaft towards the bottom plate.

Dependencies are inferred from the claim text.

Facts

Application: 16/656,825Filed 18 Oct 2019
Published: US 2020/0376711 A13 Dec 2020
Granted: 19 Oct 2021
Term ends: Not estimatedThe source records don’t support an estimate.

Classification4 codes

B28D 1/223
By pressing, e.g. presses: hand-held or hand-operated tools for shearing or cleaving
B28D 1/225
By cutting, e.g. incising: for scoring or breaking, e.g. tiles
B28D 7/02
Accessories specially adapted for use with machines or devices of the preceding groups: for removing or laying dust, e.g. by spraying liquids; for…
B28D
Working stone or stone-like materials