Lock structure

Patent metadata

Field	Value
Publication number	US-9890565-B2
Application number	US-201414582317-A
Country	US
Kind code	B2
Filing date	Dec 24, 2014
Priority date	Aug 26, 2014
Publication date	Feb 13, 2018
Grant date	Feb 13, 2018

Abstract

A lock structure includes a case, a first latch, a second latch, a transmission member, a transmission module, a swaying plate and a driving plate, wherein the transmission module is rotated to drive the swaying plate and the transmission member to perform swing action for making the swaying plate driving the first latch being hidden into the case. In addition, the driving plate moves upwardly by swing action of the transmission member, and the driving plate drives the second latch in operation for making the second latch being hidden into the case.

First claim

What is claimed is:

1. A lock structure comprising:
a case having an accommodating space;
a first latch disposed in the accommodating space, wherein a first head portion of the first latch protrudes to the case;
a second latch disposed in the accommodating space, wherein a second head portion of the second latch protrudes to the case;
a transmission member swingably disposed in the accommodating space comprises a first transmission portion, a second transmission portion and a third transmission portion;
a transmission module rotatably disposed in the accommodating space comprises a first transmission plate and a second transmission plate, wherein the first transmission plate and the second transmission plate are engaged as one piece, the first transmission plate abuts the first transmission portion to make the second transmission portion swinging toward a second direction opposite to a first direction and swinging from a first position to a second position when the transmission module rotates toward the first direction, and the second transmission plate abuts the third transmission portion to make the second transmission portion continuously swinging toward the second direction and swinging from the second position to a third position when the transmission module continues to rotate toward the first direction;
a swaying plate swingably disposed in the accommodating space is used for driving the first latch in operation, the first transmission plate drives the swaying plate to perform swing action for making the swaying plate driving the first latch in operation and making the first head portion being hidden into the case when the first transmission plate abuts the first transmission portion; and
a driving plate movably disposed in the accommodating space is used for driving the second latch in operation, the second transmission portion drives the driving plate to move upwardly for making the driving plate driving the second latch in operation and making the second head portion being hidden into the case when the second transmission portion swings from the second position to the third position,
wherein, the first transmission plate and the second transmission plate drives the first transmission portion and the third transmission portion respectively to enable the transmission member to achieve two-stage rotation and further to drive the first latch and the second latch with different strokes.

2. The lock structure in accordance with claim 1 further comprising a linking member, wherein the linking member is driven to be in operation by the driving plate when the driving plate moves upwardly.

3. The lock structure in accordance with claim 2 further comprising a knob moveably disposed in the accommodating space, wherein the linking member drives the knob to swing to drive the second latch in operation for making the second head portion being hidden into the case.

4. The lock structure in accordance with claim 1 , wherein the driving plate comprises a limiting portion having a limiting hole, the first latch comprises a latch body connected to the first head portion, the latch body comprises a limiting pillar which is constrained in the limiting hole.

5. The lock structure in accordance with claim 4 , wherein a first notch and a second notch are recessed into a lateral wall of the limiting hole, and the limiting pillar is selectively constrained in the first notch or the second notch.

6. The lock structure in accordance with claim 4 , wherein the limiting portion comprises a guiding slot, and the case comprises a guiding pillar, the guiding pillar penetrates through the guiding slot and restricts movement of the driving plate along a longitudinal direction.

7. The lock structure in accordance with claim 4 , wherein the latch body comprises a long slot, and the swaying plate comprises a protrusion pillar that penetrates through the long slot.

8. The lock structure in accordance with claim 1 , wherein the second transmission plate comprises a pushing portion, the second transmission plate pushes the third transmission portion by the pushing portion.

9. The lock structure in accordance with claim 1 , wherein the first transmission plate comprises a first protrusion portion and a second protrusion portion, the first protrusion portion pushes the swaying plate to make the swaying plate swinging toward the second direction to drive the first latch in operation and make the first head portion being hidden into the case when the transmission module rotates toward the first direction, the second protrusion portion pushes the swaying plate to make the swaying plate swinging toward the first direction to drive the first latch in operation and make the first protrusion portion protrude to the case when the transmission module rotates toward the second direction.

10. The lock structure in accordance with claim 1 further comprising a third latch disposed in the accommodating space, wherein a third head portion of the third latch protrudes to the case, the transmission module further comprises a third transmission plate, the third transmission plate drives the third latch in operation to make the third head portion being hidden into the case when the transmission module rotates in the first direction.

Assignees

• Taiwan Fu Hsing Ind Co Ltd

Inventors

• Shiu Jiun Nan
• Lu Shih Min

Classifications

• E05B63/08 Primary

  Mortise locks {(mortised work B27F5/12)} · CPC title

• E05B59/00 Primary

  Locks with latches separate from the lock-bolts or with a plurality of latches or lock-bolts · CPC title

• E05B65/1086

  Locks with panic function, e.g. allowing opening from the inside without a ley even when locked from the outside · CPC title

• E05C1/08

  with latching action · CPC title