Male connector equipped with lock mechanism

Patent metadata

Field	Value
Publication number	US-9775979-B2
Application number	US-201314391349-A
Country	US
Kind code	B2
Filing date	Apr 5, 2013
Priority date	Apr 13, 2012
Publication date	Oct 3, 2017
Grant date	Oct 3, 2017

Abstract

A lock mechanism includes a hood ( 20 ) that is arranged so as to surround the periphery of a male member ( 10 ) and is for insertion of a female connector ( 100 ), and a single lock lever ( 30 ) having a cantilever support structure capable of elastic displacement. The lock lever ( 30 ) includes a claw ( 34 ) for engaging with the female connector ( 100 ), and an operation portion ( 35 ) for elastically displacing the lock lever ( 30 ) in a direction of separation from the male member ( 10 ). The claw ( 34 ) and the operation portion ( 35 ) are provided on the free end side of the lock lever ( 30 ).

First claim

The invention claimed is:

1. A male connector with a lock mechanism, comprising:
a bar-shaped male member for insertion into a female connector; and
a lock mechanism for maintaining a state in which the male member is inserted into the female connector,
wherein
the lock mechanism includes:
a hood that is arranged so as to surround a periphery of the male member and is for insertion of the female connector;
a single lock lever having a cantilever support structure capable of elastic displacement; and
a base to which the hood and the lock lever are directly attached and from which the hood and the lock lever extend in the same direction,

the lock lever includes:
a fixed end at which the lock lever is fixed to the base;
a free end that is an opposite side end of the fixed end of the lock lever;
a claw that protrudes toward the male member to be engaged with the female connector;
an operation portion that is provided on a same side as the free end relative to the fixed end; and
an elastic portion that is capable of elastic bending deformation and is provided between the fixed end and the operation portion,

an elongate opening is formed in the hood, a length of the opening extending parallel to the male member, the lock lever being located opposite to the male member via the opening,
the claw is provided on a free end side of the lock lever relative to the elastic portion, and
the lock lever is configured such that if the operation portion is displaced in a direction opposite to the male member, the elastic portion undergoes elastic bending deformation so as to increase a distance between the claw and the male member to cancel the engagement between the claw and the female connector.

2. The male connector with a lock mechanism according to claim 1 , wherein a stopper of the lock lever and the base cooperate with each other to set an upper limit of an elastic displacement amount of the lock lever.

3. The male connector with a lock mechanism according to claim 1 ,
wherein the opening is configured to allow engagement of the claw to the female connector.

4. The male connector with a lock mechanism according to claim 3 ,
wherein the hood includes a bridge portion on a side on which the female connector is inserted relative to the opening, the bridge portion connecting portions of the hood that sandwich the opening in a circumferential direction.

5. The male connector with a lock mechanism according to claim 1 ,
wherein a channel is formed in the male member, and a lateral hole in communication with the channel is open at an outer circumferential face of the male member.

6. The male connector with a lock mechanism according to claim 1 , wherein the operation portion is configured to be activated by a force in a radially outward direction.

7. The male connector with a lock mechanism according to claim 1 , wherein a free end of the cantilever support structure is not biased by another structural member of the lock mechanism in a radial direction.

Assignees

• Jms Co Ltd
• Jms Co Ltd

Inventors

• Okiyama Tadashi

Classifications

• A61M39/1011 Primary

  Locking means for securing connection; Additional tamper safeties (A61M39/16 takes precedence) · CPC title

• A61M39/12

  for joining a flexible tube to a rigid attachment · CPC title

• A61M39/045 Primary

  pre-slit to be pierced by blunt instrument · CPC title

• A61M2039/1027

  Quick-acting type connectors · CPC title

• A61M2039/1016

  Unlocking means providing a secure or comfortable disconnection · CPC title