| 摘要 |
A buckle assembly for a seat belt generally comprises a base having a horizontal plate and side plates, a latch means to be engaged with the side plates and supported thereby so as to be swingable between a latch locking position and a latch releasing position, a push button pivotally mounted to the side plates, a spring means to be engaged with the latch means so as to always urge the latch means towards the locking position thereof, and a tongue means to be inserted into a tongue insertion space formed between the horizontal plate and the side plates of the base and engaged with the latch means. The spring means is of a double tortional spring structure comprising double tortional portions, a central lock spring portion formed between the double tortional portions and adapted to urge the latch means to the locking position thereof, and cantilever portions formed outside the double tortional portions and adapted to be supported by the push button so as to urge the push button towards an original position thereof. The latch means is provided with an improved guide means for smoothly and safely inserting the tongue means into the tongue insertion space of the base. |
