# US 2013/0152401 A1 · Tube cutting device with rapid separable handle

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- Number: US 2013/0152401 A1
- Document ID: US20130152401A1
- Status: Published application
- Kind: A1
- Application number: 13/424,317
- Filed: 2012-03-19
- Published: 2013-06-20
- Earliest claimed: 2011-12-20
- Inventors: Tai-Hung Lee
- Web page: https://patentgrep.com/patent/US20130152401A1

## CPC

- B23D 21/06: Hand-operated tube-cutters
- B26D 3/169: {Hand held tube cutters}
- B23D: PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR (making toothed gears or the like B23F; cutting metal by applying heat locally B23K; arrangements for copying or controlling B23Q)
- B26D: CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING (for growing crops or plants A01D, A01G; for fodder or straw A01F; for bulk butter A01J; for dough A21C; slaughtering A22B; for tobacco, cigars or cigarettes A24; marking-out, perforating or making buttonholes A41H25/00; manufacturing footwear A43D; brushmaking A46D; surgery A61B; disintegrating, mincing or shredding in general B02C; cutting wire, making pins or nails B21F, B21G; of the kind used formetal B23; cutting by abrasive fluid jets B24C5/02; hand-held cutting tools B26B; perforating, cutting-out, stamping-out or punching, or severing by means other than cutting B26F; for wood B27; for stone B28D; working of plastics or substances in a plastic state B29; making boxes, cartons, envelopes or bags, of paper or similarly worked materials, e.g. metal foil, B31B; article or web delivery apparatus incorporating cutting or line-perforating devices B65H35/00; for leather or upholstery B68, C14B; for glass C03B; making matches C06F; for peat C10F; for sugar C13B45/00; for textile materials D06H; civil engineering, building, mining, see Section E; for light guides G02B6/25; cutting processed photographic material G03D15/04)

## Abstract

A tube cutting device with a rapid separable handle comprises a tube cutter and a handle. The tube cutter comprises a C-shaped housing, a one-way rotation part, and a limit part. The handle comprises a grip part, a C-shaped guiding seat, a separation control part, and a control button. The C-shaped guiding seat is for unidirectional rotation of the C-shaped housing via the one-way rotation part. In a combination position, it engages with the limit part so that the tube cutter and the handle are mutually fixed. In a separation position, it is separated from the limit part so that the tube cutter and the handle are separable from each other for independently perform tube cutting. Therefore, this invention has advantages of the handle being separable from or combinable with the tube cutter as needed, and quick, easy and convenient switch between different usage modes of the tube cutting device.

## Claims

### Claim 1

A tube cutting device with a rapid separable handle, comprising:
a tube cutter, comprising a C-shaped housing, a first recess space, a one-way rotation part, and a limit part; and
a handle, comprising:
a grip part;
a C-shaped guiding seat located at the grip part for guiding unidirectional rotation of the C-shaped housing via the one-way rotation part;
a separation control part disposed at the grip part and capable of switching between a combination position and a separation position, when located in the combination position, the separation control part engaging with the limit part so that the tube cutter and the handle are mutually fixed to each other, when located in the separation position, the separation control part and the limit part being retracted away from each other so that the tube cutter and the handle are separated away from each other to independently perform tube cutting;
a control button disposed at the grip part and used to control the separation control part to switch between the combination position and the separation position; and
a second recess space corresponding to the first recess space.

### Claim 2 (depends on 1)

The tube cutting device as claimed in claim 1, wherein the C-shaped housing comprises a rotating cutter, a plurality of rollers, two side surfaces respectively with a C shape, the one-way rotation part and the limit part are located at one of the side surfaces.

### Claim 3 (depends on 1)

The tube cutting device as claimed in claim 1, wherein the one-way rotation part is a ring-like unidirectional gear tooth structure, and comprises a guiding inner surface in order to guide the one-way rotation part to engage with the C-shaped guiding seat.

### Claim 4 (depends on 1)

The tube cutting device as claimed in claim 1, wherein the limit part comprises a guiding groove and a limit flange, the guiding groove is in use of guidance of the separation control part and the tube cutter to mutually fix to and separate away from each other, the limit flange is in use of limiting the separation control part and the tube cutter to mutually fix to and separate away from each other.

### Claim 5 (depends on 1)

The tube cutting device as claimed in claim 1, wherein the one-way rotation part comprises a guiding inner surface, the grip part is equipped with an accommodation space, a control opening and a control button sliding channel, the C-shaped guiding seat comprises a top surface, a guiding outer surface, a sliding surface and at least a one-way rotation limit element, the separation control part comprises a linear motion part, an extension driving part, a C-shaped limit part, an engaging part, and a resilient element, an arc extension range of the C-shaped limit part is greater than 180 degrees to withhold the tube cutter, the one-way rotation part corresponds to the top surface, and engages with the one-way rotation limit element, the guiding inner surface engages with the guiding outer surface and is capable of sliding relative to the guiding outer surface, the limit flange engages with the sliding surface and is capable of sliding relative to the sliding surface, when the separation control part is located in the combination position, the engaging part is pushed by the resilient element, the C-shaped limit part engages with the guiding groove, and the limit flange is limited by the C-shaped limit part so that the tube cutter is capable of being rotated without being separated therefrom, when the separation control part is located in the separation position, the engaging part reversely squeezes the resilient element, the C-shaped limit part is separated out of the guiding groove, and the limit flange is free from being limited by the C-shaped limit part so that the tube cutter is capable of being separated therefrom.