Cutting device including cutter lever for moving cutter blade, and cutter cradle lever for moving both cutter blade and cutter cradle

Patent metadata

Field	Value
Publication number	US-11712909-B2
Application number	US-202117539071-A
Country	US
Kind code	B2
Filing date	Nov 30, 2021
Priority date	Dec 4, 2020
Publication date	Aug 1, 2023
Grant date	Aug 1, 2023

Abstract

A cutting device includes: a cutter blade configured to perform one of a half-cutting operation and a full-cutting operation with respect to a cut target; a cutter holder holding the cutter blade; a cutter cradle movable between a half-cutting position and a full-cutting position; and a cutter lever and a cutter cradle lever those operated by a user. When only the cutter lever is operated by the user, the cutter blade is moved so that the cutter blade and the cutter cradle at the half-cutting position perform the half-cutting operation with respect to the cut target. When both the cutter lever and the cutter cradle lever are operated by the user, the cutter cradle is moved to the full-cutting position and the cutter blade is moved so that the cutter blade and the cutter cradle at the full-cutting position perform the full-cutting operation with respect to the cut target.

First claim

What is claimed is:

1. A cutting device comprising:
a cutter blade configured to cut a cut target;
a cutter holder holding the cutter blade and movable together with the cutter blade;
a cutter cradle facing the cutter holder, the cutter cradle being movable between:
a full-cutting position where the cutter cradle and the cutter blade are configured to perform a full-cutting operation with respect to the cut target in cooperation with each other; and
a half-cutting position where the cutter cradle and the cutter blade are configured to perform a half-cutting operation with respect to the cut target in cooperation with each other;

a cutter lever configured to be operated by a user, the cutter lever being configured to make contact with the cutter holder to cause a movement of the cutter holder; and
a cutter cradle lever configured to be operated by the user, a movement of the cutter cradle lever causing a movement of the cutter cradle,
wherein, when only the cutter lever is operated by the user, the cutter blade is moved together with the cutter holder caused by a movement of the cutter lever so that the cutter blade and the cutter cradle positioned at the half-cutting position perform the half-cutting operation with respect to the cut target in cooperation with each other, and
wherein, when the cutter lever and the cutter cradle lever are operated by the user, the cutter cradle is moved to the full-cutting position caused by the movement of the cutter cradle lever and the cutter blade is moved together with the cutter holder caused by the movement of the cutter lever so that the cutter blade and the cutter cradle that has been moved to the full-cutting position perform the full-cutting operation with respect to the cut target in cooperation with each other.

2. The cutting device according to claim 1 ,
wherein the cutting device is for use with a printing device comprising a housing defining therein an accommodating portion for accommodating the cut target therein, the housing being formed with an opening opened in a prescribed direction and in communication with the accommodating portion, and
wherein the cutter lever is positioned further in a direction opposite the prescribed direction than the cutter cradle lever.

3. The cutting device according to claim 1 , further comprising an interlocking portion,
wherein the interlocking portion does not cause the cutter lever and the cutter cradle lever to be moved in interlocking relation to each other when only the cutter lever is operated by the user, whereas the interlocking portion causes the cutter lever and the cutter cradle lever to be moved in interlocking relation to each other when only the cutter cradle lever is operated by the user, and
wherein, when only the cutter cradle lever is operated by the user, the cutter cradle is moved to the full-cutting position caused by the movement of the cutter cradle lever and the cutter blade is moved together with the cutter holder caused by the movement of the cutter lever moved in interlocking relation to the movement of the cutter cradle lever so that the cutter blade and the cutter cradle that has been moved to the full-cutting position perform the full-cutting operation with respect to the cut target in cooperation with each other.

4. The cutting device according to claim 1 ,
wherein the cutter blade has a cutting edge extending in an extending direction and includes one end and another end in the extending direction, and
wherein the one end and the another end in the extending direction of the cutter blade are positioned further outward than one end and another end in the extending direction of the cutter cradle lever, respectively, both when the cutter cradle lever is positioned at the full-cutting position and when the cutter cradle lever is positioned at the half-cutting position.

5. The cutting device according to claim 1 , further comprising a support portion,
wherein the cutter cradle is movable in a first moving direction from the half-cutting position to the full-cutting position, the first moving direction crossing a moving direction in which the cutter holder is moved,
wherein the cutter cradle comprises:
a first wall facing the cutter blade and crossing the first moving direction; and
a second wall connected to the first wall and extending from the first wall away from the cutter holder, the second wall crossing the first moving direction,

wherein the support portion is positioned opposite to the cutter holder with respect to the first wall and positioned further in the first moving direction than the second wall, and
wherein, in accordance with the movement of the cutter cradle in the first moving direction, the support portion is relatively moved in a second moving direction opposite the first moving direction and is pressed against both the first wall and the second wall.

6. The cutting device according to claim 1 , further comprising a holding member for moving the cutter cradle from the half-cutting position to the full-cutting position,
wherein the cutter cradle comprises a contact portion extending in an extending direction in which a cutting edge of the cutter blade extends, the contact portion having a center in the extending direction configured to make contact with the holding member, and
wherein the cutter cradle is movable from the half-cutting position to the full-cutting position by receiving a force from the holding member at the contact portion.

7. The cutting device according to claim 1 , further comprising a holding member for moving the cutter cradle, the holding member extending in an extending direction including a first direction and a second direction opposite the first direction,
wherein the cutter cradle is formed with an insertion portion into which the holding member is inserted, the holding member penetrating the insertion portion and extending in the second direction in a state where the holding member is inserted into the insertion portion,
wherein the cutter cradle comprises a wall portion, the wall portion facing the holding member in an orthogonal direction orthogonal to the extending direction in the state where the holding member is inserted into the insertion portion, the orthogonal direction including a third direction and a fourth direction, the wall portion facing the holding member at a position further in the fourth direction than the holding member, and
wherein the wall portion comprises a first sloped portion positioned further in the first direction than the insertion portion, the first sloped portion being sloped with respect to the extending direction such that one end in the first direction of the first sloped portion is positioned further in the fourth direction than one end in the second direction of the first sloped portion.

8. The cutting device according to claim 7 ,
wherein the wall portion of the cutter cradle further comprises a first load portion positioned further in the second direction than the first sloped portion, and
wherein the holding member is configured to make contact with the first load portion and to impart a load on the first load portion in the state where the holding member is inserted into the insertion portion.

9. The cutting device according to claim 8 ,
wherein the first load portion is sloped with respect to the extending direction such that one end in the second direction of the first load portion is positioned further in the fourth direction than one end in the first direction of the first load portion.

10. The cutting device according to claim 7 ,
wherein the holding member does not make contact with the first sloped portion and does not impart a load on the first sloped portion in the state whe

Assignees

• Brother Ind Ltd

Inventors

• Iijima Shota
• Mizutani Hiromitsu

Classifications

• B41J11/68 Primary

  cutting parallel to the direction of paper feed · CPC title

• B26D1/30 Primary

  with limited pivotal movement to effect cut · CPC title

• B31D1/026

  Cutting or perforating (B31D1/022 takes precedence) · CPC title

• B41J2/315

  characterised by selective application of heat to a heat sensitive printing or impression-transfer material (B41J2/385, B41J2/435 take precedence) · CPC title

• B41J11/703

  Cutting of tape · CPC title