| 摘要 |
A push button buckle for use in a safety restraint system in combination with a mating tongue plate connector whereby only a small force is required to release the buckle from the mating connector even when the restraint system is in tension through the application of a load. The buckle comprises the conventional base, pivotally mounted latch lever, spring for biasing the latch lever to the locking position, and with the improvement comprising a first push button lever pivotally mounted adjacent one end and in contact with the latch member at its opposite end and a second push button lever also pivotally mounted at one end at a spaced apart location from the pivotal mounting of the first push button lever and overlying the first push button lever, whereby the application of force on the second push button lever which is exposed through a cover of the buckle engages and pivots the first push button lever which moves the latch member to a release position and in which the first and second push button levers are so arranged and proportioned so as to provide a mechanical advantage to reduce the force required to release the buckle from the mating connector.
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