GN 810.4 vertical acting toggle clamps have a safety function whereby, during closing, a spring loaded safety hook latch ensures a secure locking connection. It prevents the inadvertent unlocking of the clamp due to vibrations or an accidental attempt of loosening / opening of the clamp. To open and release the clamp, pull up on the ﬁnger grip to disengage the safety hook latch mechanism (one hand operation).
They work according to the toggle principle: lever and clamping bar move in the same direction. In the clamped position the operating lever is in its vertical position.
Vertical acting toggle clamps in the U-bar version with two flanged washers (type BL) can accommodate an application speciﬁc clamping screw. A spindle assembly with neoprene rubber tip is also included for type BLC.
Type FL version can either be utilized by welding the clasp which can then accommodate an application speciﬁc hold-down fastener component, or by utilizing the bar in conjunction with the GN 809
clamp mounts to hold the work piece in place.