Electricity: circuit makers and breakers – Electric switch details – Cases and bases
Patent
1977-03-16
1979-07-31
Hornsby, Harvey C.
Electricity: circuit makers and breakers
Electric switch details
Cases and bases
174153G, H01H 1304
Patent
active
041631366
ABSTRACT:
The snap-in mounting means includes a snap-in grommet carried on the shank of a bushing which extends from a switch frame mounted on a switch base of an electrical toggle switch assembly and pivotally supports a toggle lever for actuating switch contacts housed in the switch base. The snap-in grommet includes a radially yieldable sleeve slidably mounted on the lower end portion of the bushing shank, a tapered locking collar carried on the outer end of the sleeve and having a radially extending shoulder which engages the front of the panel around the panel mounting hole, after the collar has been squeezed through the hole during mounting, and a pair of opposed resilient back-up elements which are biased against the back of the panel to keep the locking collar shoulder in tight engagement with the front side of the panel. The bushing is pulled back after the locking collar has been squeezed through the panel mounting hole. As the bushing is moved axially relative to the grommet, a camming section on the outer end portion of the bushing having the shape of an inverted truncated cone cams the grommet sleeve radially outwardly into tight engagement with the inner wall of the hole to firmly lock the switch assembly to the panel. The bushing shank preferably includes a portion of reduced diameter between the lower end portion and the camming section so that, as the bushing is pulled back, the grommet sleeve slides onto the reduced portion with an audible snap, thereby providing a positive indication of the proper positioning of the grommet on the bushing.
REFERENCES:
patent: 2592130 (1952-04-01), Erb et al.
patent: 3285548 (1966-11-01), Matto et al.
patent: 3453408 (1969-07-01), Mune
patent: 3941965 (1976-03-01), Piber
Cutler-Hammer, Inc.
Henderson Arthur O.
Hornsby Harvey C.
LandOfFree
Snap-in means for mounting electrical devices or the like in a s does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Snap-in means for mounting electrical devices or the like in a s, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Snap-in means for mounting electrical devices or the like in a s will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-23820