Barrel Bolt Lock Views

Tools & Home Improvement

However, there are instances where straight bolt locks are not viable as the door stop or frame does not lie flush with the door itself. In such instances, with reference to FIG. 1 which illustrates a prior art necked bolt, a necked bolt lock 10 is used. Such a lock 10 includes an attachment plate 12 for securing the lock 10 to a door, a hollow barrel body 14 through which slides the necked bolt 16 . As will be seen in FIG. 1, the bolt 16 includes an angled end 18 which is inserted through an aperture 20 of a lock plate 22 , or catch, attached to the door stop or door frame. A screw-in handle 24 enables the bolt 16 to be slid into and out of the lock plate to lock and unlock the door.

The present invention resides in a locking necked barrel bolt apparatus comprised of an attachment plate and a hollow barrel body attached to an upper surface of the attachment plate. A neck bolt is slidably disposed within the barrel body. The bolt has first and second sections which are rotatably connected to one another. Typically, the first section includes an externally threaded post extending from an end thereof, and the second section includes an internally threaded end which receive the threaded post. The second section has an angled portion configured to be inserted into an aperture of a locking plate or the like.

A locking notch is formed on the top surface of the attachment plate. For example, the locking notch may be formed by spaced relation between an end of the barrel body and post extending upwardly from the attachment plate. Thus, the apparatus is locked upon sliding the neck bolt such that the angled portion is inserted into the locking plate aperture. By turning the handle into the locking notch, the second section rotates relative to the first section and secondarily locks the lock.

As shown in the accompanying drawings for purposes of illustration, the present invention resides in a locking necked barrel bolt apparatus, generally referred to by the reference number 100 . The apparatus 100 , as shown in FIG. 2, includes an attachment plate 102 having a plurality of apertures 104 configured to receive screws or the like in order to attach the attachment plate 102 to a door surface. A hollow barrel body 106 extends from an upper surface of the attachment plate 102 and is configured to receive a necked barreled bolt 108 .