of spring 50 together determine exactly how much force must be exerted on the hook 32 by the catch element 24 to move the toggle arm to the left of the line of action 52 by tailoring this force accidental displacement of the hook 32 is reduced and resistance to accidental displacement of the hook 32 does not rely on the varying influence of friction referring now to fig5 when the toggle arm 46 moves clockwise so that the pivot 44 crosses the left of the line of action 52 the track 56 no longer constrains rotation of the toggle arm 46 accordingly the toggle arm 46 may move fully 90 degrees in a clockwise direction allowing full retraction of the hook 32 to a capture position as driven by the spring 50 to pull the catch element 24 inward releasing the force of spring 50 to compress the gasket 22 it will be appreciated that all forces affecting motion of the hook 32 are concentrated on relatively small contact areas of pivots 44 34 and 48 reducing the effective frictional resistance by the mechanical advantage of the levers that connect to the pivots this is in contrast to the more substantial sliding friction between a hook cam and a stop in prior art designs generally spring 50 may be recompressed and the hook 32 returned to its receiving position by pulling outward on the door to withdraw the catch element 24 from the slot 27 generally energy used in opening the door of the appliance is recycled to help close the door of the appliance through the agency of the spring 50 referring now to fig6 it will be appreciated that if the hook 32 is inadvertently released to its de energized state capture state while not.