Locking mechanism with one and two-stage locking verification

• US 10,238,184 B2
• Filed: 03/09/2016
• Issued: 03/26/2019
• Est. Priority Date: 06/30/2015
• Status: Active Grant

• Current Assignee: Control Dynamics, Inc.
• Original Assignee: Control Dynamics, Inc.
• Inventors: Moran, Eric M.
• Primary Examiner(s): Lavinder, Jack W
• Application Number:
  US15/065,582
• Publication Number:
  US 20170000220A1
• Time in Patent Office: 1,112 Days
• Field of Search: 297468
• CPC Class Codes: A44B 11/2519 with two buttons acting in opposite directions
• CPC Class Codes: A44B 11/2569 Safety measures buckles for releasing in a vehicle emergency B60R22/32; control, alarm, or interlock systems for the correct application of safety belt buckles in vehicles B60R22/48
• CPC Class Codes: A44B 11/2573 Locking means preventing an unauthorised opening, e.g. by children
• CPC Class Codes: A44B 11/26 with push-button fastenings A44B11/2507 takes precedence; press-button fasteners A44B17/00
• CPC Class Codes: A44B 11/263 with a push-button acting perpendicularly to the main plane of the buckle
• CPC Class Codes: A44B 11/266 with at least one push-button acting parallel to the main plane of the buckle and perpendicularly to the direction of the fastening action
• CPC Class Codes: A44B 17/0005 Fastening of press-button fasteners A44B17/0017 and A44B17/0035 take precedence
• CPC Class Codes: A44B 17/0041 Press-button fasteners consisting of two parts A44B17/0029 takes precedence
• CPC Class Codes: A44B 17/0076 Socket member
• CPC Class Codes: B60R 2022/4816 for sensing locking of buckle

Abstract

Apparatus and method of locking two devices to each other through a receiver base, a pair of pivoting locking tabs, each having first and second arms extending out from a pivot point, and an insert that is partially engaged within a cavity formed by the receiver base and locking tabs. The receiver base is configured to be engageable with a first device. The insert is configured to be engageable with a second device. An optional push button assembly that has a retractable lip is engageable with the receiver base to block rotational movement of the locking tabs unless the lip of the push button is retracted. The apparatus may also include magnetic actuators and corresponding electronic switches that provide two stage locking and, optionally, provide contact state signaling to an external controller and computer to verify locked/unlocked status of the insert relative to the receiver base cavity and locking tabs.

Claims

1. A locking mechanism, comprising:

a pair of locking tabs, each locking tab having a first arm and a second arm;

wherein each locking tab is spaced apart relative to a receiver base having an upper portion and a lower portion and each locking tab is configured to pivot about a respective pin operatively connected to the receiver base, and wherein a cavity is formed between the two locking tabs and the upper portion of the receiver base,

the lower portion of the receiver base configured to be engageable with a first device;

an insert having a lower portion configured with a leading edge and an upper portion;

the lower portion of the insert being configured to be received within the cavity and to be engaged by the first arm of each locking tab to keep the insert retained within the cavity;

the upper portion of the insert is configured to be engageable with a second device;

three magnetic actuators configured to be positioned respectively at a lower surface of the second arm and leading edge of the insert; and

an electronic switch for each magnetic actuator, wherein each electronic switch is positioned within the receiver base and configured to mate with its respective magnetic actuator.

2. The locking mechanism according to claim 1 wherein the upper portion of the insert defines an opening that is configured to be engageable with the first device and the lower portion of the receiver base defines an opening that is configured to be engageable with the second device and wherein the opening of the insert and the opening of the receiver base are aligned one above the other.

3. The locking mechanism according to claim 1 further comprising a push button assembly having a retractable lip that is configured to engage with an indentation within the receiver base to block rotational movement of the second arm of each locking tab when locked.

4. The locking mechanism according to claim 3 wherein the upper portion of the insert defines an opening that is configured to be engageable with the first device and the lower portion of the receiver base defines an opening that is configured to be engageable with the second device and wherein the opening of the insert and the opening of the receiver base are aligned one above the other.

5. A method of locking one device to another, the method comprising:

providing a first device having an engageable end;

providing a second device having an engageable end;

providing a receiver base having an upper portion and a lower portion having an engagement member;

providing a pair of locking tabs wherein each locking tab has a first arm and a second arm connected by a joint;

said locking tabs being spaced apart relative to the upper portion of the receiver base to form a cavity;

providing a pair of pivots and a pair of torsion springs;

positioning each locking tab joint between one of the torsion springs against the receiver base to pivot about one of the pivots;

providing an insert having lower portion with a leading edge and an upper portion having an engagement member;

the lower portion configured to be engageable with the first arms of the locking tabs;

inserting the lower portion of the insert into the cavity where the second arm of each locking tab is positioned below the leading edge of the insert;

engaging the lower portion of the insert by the first arm of each locking tab;

connecting the first device'"'"'s engagement end with the upper portion engagement member;

connecting the second device'"'"'s engagement end with the engagement member

providing three magnetic actuators;

positioning the magnetic actuators respectively at a lower surface of the second arm and leading edge of the insert;

providing an electronic switch to correspond to each magnetic actuator;

positioning each electronic switch within the receiver base to mate with its respective magnetic actuator; and

means for wirelessly controlling connection of the magnetic actuators to the electronic switches.

6. The method according to claim 5 wherein the upper portion of the insert defines an opening that is configured to be engageable with the first device and the lower portion of the receiver base defines an opening that is configured to be engageable with the second device and wherein the opening of the insert and the opening of the receiver base are aligned one above the other.

7. The method according to claim 5 further comprising:

providing a push button assembly having a retractable lip that is configured to engage with an indentation within the receiver base; and

blocking rotational movement of the second arm of each locking tab when the push button is not engaged.

8. A method of verifying when one device is unlocked from another device, the method comprising:

providing a receiver base having an upper portion and a lower portion having an engagement member that is operably engaged with a first device;

providing a pair of locking tabs wherein each locking tab has a first arm and a second arm connected by a joint that is rotatably connected to the upper portion of the receiver base;

said locking tabs being spaced apart relative to the upper portion of the receiver base to form a cavity, wherein when the joint of each locking tab rotates, the first arm of each locking tab extends past an outer edge of the receiver base;

providing an insert having lower portion with a leading edge and an upper portion having an engagement member;

the lower portion of the insert being engaged by the first arms of the locking tabs;

the upper portion having an engagement member that is operably engaged with a second device;

the insert being inserted;

applying a force to the first arm of each locking tab adjacent the joint of each locking tab where the second arm of each locking tab disengages the leading edge of the insert and making visible a portion of each first arm relative to the receiver base;

providing three magnetic actuators;

positioning the magnetic actuators respectively at a lower surface of the second arm and leading edge of the insert;

providing an electronic switch for each magnetic actuator;

positioning each electronic switch within the receiver base to mate with its respective magnetic actuators; and

controlling contact between the electronic switches and their respective magnetic actuators.

9. The method according to claim 8 wherein the upper portion of the insert defines an opening that is configured to be engageable with the first device and the lower portion of the receiver base defines an opening that is configured to be engageable with the second device and wherein the opening of the insert and the opening of the receiver base are aligned one above the other.

10. The method according to claim 8 further comprising:

providing a push button assembly having a retractable lip that is configured to engage with an indentation within the receiver base; and

blocking rotational movement of the second arm of each locking tab when the push button is not engaged.

11. The method according to claim 8 further comprising:

providing signaling means to convey status of contact between the electronic switches and their respective magnetic actuators;

providing an external controller; and

signaling status of contact between the electronic switches and their respective magnetic actuators to the controller.

12. The method according to claim 11 wherein the signal means is accomplished via a wireless antenna.

13. The method according to 11 further comprising providing a computer that is communicatively engaged with the controller and wherein command signals come from the computer to separate the contact between the electronic switches and their respective magnetic actuators.