SAFETY BELT BUCKLE

• US 20150089777A1
• Filed: 03/03/2014
• Published: 04/02/2015
• Est. Priority Date: 10/02/2013
• Status: Active Grant

• Current Assignee: Yoke Industrial Corp.
• Original Assignee: Yoke Industrial Corp.
• Inventors: HUNG, Wei-Chieh
• Granted Patent: US 9,521,882 B2
• Time in Patent Office: Days
• US Class Current: 24/593.1
• CPC Class Codes: A44B 11/2511 acting perpendicularly to the main plane of the buckle, e.g. placed on the front face of the buckle
• CPC Class Codes: A44B 11/2519 with two buttons acting in opposite directions
• CPC Class Codes: A44B 11/263 with a push-button acting perpendicularly to the main plane of the buckle
• CPC Class Codes: Y10T 24/45241 Slot and tab or tongue

Abstract

A safety belt buckle includes a buckle member, a hook, a stop member, and a latch member. The buckle member has a chamber therein, which is communicated with an opening. The latch member has a tongue plate which is inserted into the chamber through the opening. The stop member and the hook are provided in the chamber, and the latch member is not able to be detached from the buckle member because that the stop member stops the hook from moving to engage the tongue plate. By pressing a press button on the stop member, the stop member is moved to a predetermined position, and no longer stops the hook from disengaging the tongue plate. The latch member is able to be detached from the buckle member at this time.

Claims

1. A safety belt buckle, comprising:

a buckle member having a chamber therein and an opening, wherein the opening is communicated with the chamber;

a hook provided in the chamber of the buckle member to be moved between a first position and a second position, wherein the hook stays at the first position under a normal condition;

a stop member provided in the chamber of the buckle member to be moved between a third position and a fourth position, wherein the stop member stays at the third position under a normal condition, the stop member comprises a press button which has a bearing face outside the buckle member, and when the stop member is moved to the third position, a part of the stop member is on a moving trace of the hook to stop the hook from being moved to the second position from the first position; and

a latch member having a tongue plate to be inserted into the chamber of the buckle member through the opening, wherein the hook engages the tongue plate to let the latch member unable to be detached from the buckle member when the hook is moved to the first position;

whereby, by pressing the bearing face of the press button, the stop member is moved backward to the fourth position from the third position, and therefore the hook can be moved to the second position, which allows the tongue plate to be disengaged from the hook, so that the buckle member is detached from the buckle member.

2. The safety belt buckle of claim 1, wherein the stop member has a protrusion, and the tongue plate of the latch member has a recess, wherein the protrusion is received in the recess when the stop member is at the third position.

3. The safety belt buckle of claim 2, wherein the recess has a wall, and the protrusion has an engaging face;

when the stop member is at the third position, the engaging face of the protrusion touches the wall to stop the tongue plate from moving toward the opening of the buckle member.

4. The safety belt buckle of claim 2, wherein a side of the protrusion is a slope, and a thickness of the protrusion decrease gradually toward the opening of the buckle member.

5. The safety belt buckle of claim 1, wherein the stop member has a stop face, and the hook has an end face;

the end face moves along with the moving trace of the hook;

the stop face of the stop member is on the moving trace of the hook and touches the end face of the hook when the stop member is moved to the third position, and therefore stops the hook from being moved to the second position from the first position.

6. The safety belt buckle of claim 1, further comprising a first elastic member received in the chamber of the buckle member to urge the stop member toward the third position.

7. The safety belt buckle of claim 1, wherein the buckle member further has a ceiling and a base, and the ceiling is connected to the base to define the chamber therebetween;

the stop member is moved between the third position and the fourth position along a direction vertical to the ceiling.