SWIVELLING RECTANGULAR PADLOCKThis invention relates to a swivelling rectangular padlock body and mechanism that encases both ends of the swivelling bar.
Conventional rectangular padlocks are constructed from a solid block; a sliding bar is pushed into the block across a recess on one side of the body allowing the padlock to be affixed to either a padbar, or chain. It is locked into its position by a key that rotates an offset drum, which in turn pushes a ball bearing into a recess on the sliding bar. A proportion of this bar is left outside the padlock body to enable it to slide in and out, for attachment, which undermines its security, as a hammer attack will eventually push down the bearing allowing the bar to be released.
According to the present invention, there is provided a swivelling padlock body and locking mechanism that completely encases both ends of a swivelling bar, when in the locked position.
A specific embodiment of the invention will now be described, by way, of example. With reference to the accompanying drawings.
Figure 1 Shows in perspective the padlock in the locked positionFigure 2 Illustrates the padlock body separately swivelled in to the unlocked positionFigure 3 Shows cut away views of the body and locking mechanism in the lockedpositionFigure 4 Shows exploded views of the padlock body and mechanism With reference to the Drawings, the padlock comprises of :- Lock Barrel 3 is housed into the Body 1, which is retained by the Axle 4, using Screws 10.
Using Key 15, Lock Barrel 3 turns Cam Locking shaft 5, which is held captive in to Axle 5, byCam retain Plate 11.
The Cam Locking shaft 5 locks into a recess in Upper Body 2, thus unifying Lock Bodies 1 and 2, encasing both ends of Swivelling Bar 8.
When unlocked, Body 2, assisted by Spring 12, will move upward allowing rotation of Bodies 1 and 2. In this position, Retaining Screw 6 prevents total separation, and Swivelling Bar 8 is retained by Screw 7.
An O Ring 9 waterproofs the internals in the locked and unlocked positions, while the keyhole is waterproofed with Keyhole Bung 14 when locked.
An Anti Drill Shield 13 is fitted between Body 1 and Lock Barrel 3.