Wrapper cutter

Patent metadata

Field	Value
Publication number	US-12312196-B2
Application number	US-202418900990-A
Country	US
Kind code	B2
Filing date	Sep 30, 2024
Priority date	Mar 10, 2023
Publication date	May 27, 2025
Grant date	May 27, 2025

Abstract

A wrapper cutter, including a shell having an axially penetrating hollow structure, an elongated slit extending along an axial direction further provided on one side edge of the shell, a cutting knife fixedly mounted on an inner bottom wall of the elongated slit; and a vertical plate arranged on an outer wall of the shell. The vertical plate extends along a circumferential direction of the shell and at least partially covers the elongated slit.

First claim

The invention claimed is:

1. A wrapper cutter, comprising:
a shell having an axially penetrating hollow structure;
an elongated slit extending from a first end of the shell along an axial direction of the shell, and the elongated slit formed between a first side edge and a second side edge of the shell;
a cutting knife fixedly arranged within the elongated slit, wherein a blade of the cutting knife faces the first end of the shell, and the cutting knife is configured to cut a section of paper passing through the elongated slit;
a vertical plate arranged on an outer wall of the shell, the vertical plate having a first surface facing the axially penetrating hollow structure and an opposing second surface facing away from the axially penetrating hollow structure, a height of the vertical plate extending along a circumferential direction of the shell, an upper edge of the vertical plate extending from an inner end of the second side edge of the shell, and the vertical plate at least partially covering the elongated slit to allow a gap formed between the vertical plate and the elongated slit for the section of paper to pass through; and
a fixed plate arranged on the second side edge of the shell and facing the first surface of the vertical plate; wherein the fixed plate narrows a width of the elongated slit and prompts the section of paper introduced into the elongated slit to approach the first side edge in a process of approaching the cutting knife.

2. The wrapper cutter according to claim 1 , wherein a grip is further arranged on the outer wall of the shell.

3. The wrapper cutter according to claim 1 ,
wherein a sidewall of the shell is defined with an open slot extending from the first end of the shell to a second end of the shell, two sides of the shell defining the open slot are a third side edge and a fourth side edge respectively, and the third side edge or the fourth side edge is configured to pull the section of paper out of the wrapper cutter.

4. The wrapper cutter according to claim 1 ,
wherein the first side edge facing an opening of the first end is defined with a first inclined guide edge, and the first inclined guide edge tilts toward the elongated slit; the first inclined guide edge narrows a width of the elongated slit from a top opening end of the elongated slit inward, so as to facilitate introducing the section of paper from outside into the elongated slit of the wrapper cutter.

5. The wrapper cutter according to claim 1 ,
wherein one end of the vertical plate away from the cutting knife is defined with a second inclined guide edge, the second inclined guide edge tilts toward the elongated slit, and the second inclined guide edge facilitates the section of paper to be introduced toward the cutting knife within the elongated slit.

6. The wrapper cutter according to claim 1 , wherein one protrusion is arranged on a sidewall of the shell, and the sidewall of the shell comprises a protruded portion, an edge of the protrusion and a tangent line of the protruded portion of the sidewall of the shell are coplanar.

7. The wrapper cutter according to claim 1 , wherein two guideways are arranged at intervals, the two guideways are arranged parallel to an axis of the shell, and the two guideways are two protruded portions of the shell.

8. The wrapper cutter according to claim 7 , wherein tangent lines of outer surfaces of the two protruded portions are coplanar.

9. The wrapper cutter according to claim 1 , wherein two protrusions are arranged on a sidewall of the shell, and edges of the two protrusions are coplanar.

10. The wrapper cutter according to claim 1 , further comprising:
an indwelling notch, wherein a lower edge of the fixed plate has a same slope as that of the blade of the cutting knife; and the lower edge, the blade of the cutting knife, the first side edge and the second side edge form the indwelling notch.

11. The wrapper cutter according to claim 10 , wherein the indwelling notch has a rhombus cross-section.

Assignees

• Liu Yong

Inventors

• Liu Yong

Classifications

• B65H2301/122

  for web or sheet handling processes wherein the sheets are cut from the web · CPC title

• B65H35/06 Primary

  from or with blade, e.g. shear-blade, cutters or perforators (from or with revolving blade B65H35/08) · CPC title

• B26B29/06 Primary

  Arrangements for guiding hand cutting tools (guiding equipment or arrangements for specific cutting tools, see the particular places, e.g. for hair trimming devices A45D24/36, for saw blades B27B11/02, B26B13/10) · CPC title

• B26B3/08

  specially adapted for cutting cardboard, or wall, floor, or like covering materials · CPC title

• B65H2701/1944

  Wrapping or packing material · CPC title