A spring-loaded mechanism is responsible for bringing the viral and cell membranes in close proximity that they will fuse.

It is attached with an elastic or spring-loaded mechanism.

Many riders also use some type of card holder cord with a spring-loaded mechanism to draw the cord back after use.

Each figure comes with an oversized blaster that transforms into a different weapon using a spring-loaded mechanism.

Traditional analog models relied on pendulums that turned a dial through a spring-loaded clockwork mechanism.

Now the Spirit is mounted on a spring-loaded mechanism, retractable on impact or by button.

The figure's main gimmick is a spring-loaded mechanism that spins the lower torso during transformation to robot mode.

Missile launchers are also commonplace in military and comic book figure lines and usually involve a spring-loaded mechanism.

Starting gates are simple spring-loaded mechanisms that raise two or three strands of tape to start the race.

One side of the aluminum frame provides the housing for the spring-loaded mechanism that rolls up the screening material.