Scissors

Patent metadata

Field	Value
Publication number	US-10160124-B2
Application number	US-201414914024-A
Country	US
Kind code	B2
Filing date	Aug 25, 2014
Priority date	Aug 27, 2013
Publication date	Dec 25, 2018
Grant date	Dec 25, 2018

Abstract

Scissors include first and second body portions, and a pivot support portion that supports the first and second body portions. The scissors further include a movable transmission member attached to a handle of the first body portion, a spring provided between the handle of the first body portion and the movable transmission member, and rows of teeth configured to transmit urging force from the spring to the second body portion through the movable transmission member. The pivot support portion has a pivot and a pivot hole that enables the first and second body portions to be assembled and disassembled. The rows of teeth are provided on the movable transmission member and a handle of the second body portion, and can be attached to or detached from each other when assembling and disassembling the first and second body portions.

First claim

The invention claimed is:

1. Scissors comprising:
a first body portion and a second body portion each having a handle and a blade;
a pivot support portion that supports the first and second body portions in an openable and closable manner;
a movable transmission member attached to the first body portion;
an urging member arranged between the first body portion and the movable transmission member; and
an interlocking mechanism adapted to transmit urging force produced by the urging member to the second body portion through the movable transmission member;
wherein the movable transmission member is attached to the handle of the first body portion, the urging member is arranged between the movable transmission member and the handle of the first body portion, the pivot support portion has a coupling portion that enables assembly and disassembly of the first and second body portions, the interlocking mechanism has a first interlocking portion and a second interlocking portion arranged in the movable transmission member and the handle of the second body portion, respectively, and the first and second interlocking portions are attachable to and detachable from each other when the first and second body portions are assembled and disassembled;
wherein an accommodating portion is arranged between the movable transmission member and the handle of the first body portion, and the urging member is received in the accommodating portion; and
wherein the handle of the first body portion includes a recess serving as the accommodating portion, and the movable transmission member and the urging member are arranged inside an opening of the recess.

2. The scissors according to claim 1 , wherein
the handle of the first body portion has a grip portion, and
the movable transmission member is provided between the grip portion and the pivot support portion.

3. The scissors according to claim 1 , wherein the movable transmission member is pivotally supported by the handle of the first body portion.

4. The scissors according to claim 3 , wherein a pivot axis of the movable transmission member is set at a position spaced from a pivot axis of the pivot support portion of the first and second body portions.

5. The scissors according to claim 1 , wherein the first interlocking portion and the second interlocking portion are rows of teeth that are meshed with each other in a manner attachable to and detachable from each other.

6. The scissors according to claim 1 , wherein, when the first and second body portions are open at a predetermined angle, the coupling portion of the pivot support portion is capable of attaching and detaching the first and second body portions along a pivot axis of the pivot support portion of the first and second body portions.

7. The scissors according to claim 6 , wherein
the coupling portion is configured by a pivot arranged in one of the first and second body portions and a pivot hole formed in the other one of the first and second body portions, and
the pivot can be inserted into and detached from the pivot hole when the first and second body portions are assembled and disassembled.

8. The scissors according to claim 1 , wherein
each of the handles is arranged on a proximal side of the pivot support portion in the associated one of the body portions, and
each of the blades is arranged on a distal side of the pivot support portion in the associated one of the body portions.

9. The scissors according to claim 8 , wherein
a lock lever is attached to one of the handle of the first body portion and the handle of the second body portion,
a lock recess with which the lock lever is engaged is provided in the other one of the handle of the first body portion and the handle of the second body portion,
the lock lever and the lock recess are switchable between an unlocked state, in which the lock lever is detached from the lock recess, and a locked state, in which the lock lever is engaged with the lock recess,
in the unlocked state, the urging force of the urging member opens the handle of the second body portion with respect to the handle of the first body portion,
in the locked state, the handle of the second body portion is prevented from being opened with respect to the handle of the first body portion against the urging force of the urging member, and
cam surfaces are formed on the lock lever and the lock recess such that, when, in the locked state, the handle of the second body portion is pivoted in a closing direction with respect to the handle of the first body portion against the urging force of the urging member, the lock lever is detached from the lock recess to switch to the unlocked state.

Assignees

• Kai R&D Center Co Ltd

Inventors

• Wong Hung Tai

Classifications

• B26B13/12

  characterised by the shape of the handles · CPC title

• B26B13/06

  characterised by the shape of the blades · CPC title

• B26B13/04

  with detachable blades · CPC title

• B26B13/16 Primary

  spring loaded, e.g. with provision for locking the blades or the handles · CPC title