Closure fasteners – Knobs
Patent
1987-04-15
1989-02-14
Moore, Richard E.
Closure fasteners
Knobs
2923363, E05C 2102
Patent
active
048042170
DESCRIPTION:
BRIEF SUMMARY
The present invention relates to anti-theft devices for motor vehicles, in particular such devices for addition to or replacement of existing security systems in said motor vehicles.
A great number of motor vehicles at present on the world's roads utilise a locking spindle and knob on the top sill of a doorway. It has been found that many thieves, by use of wire or package strapping and the like, can still gain access to the interior of a motor vehicle via these locking spindles and knobs.
It is an object of the present invention to provide a security device which substantially overcomes or ameliorates the disadvantages of locking devices on existing or new vehicles.
According to one aspect of the present invention there is disclosed a security device comprising: engage said sleeve member; said sleeve member adapted to engage a door frame of an existing motor vehicle, whilst said spindle member is adapted to replace a conventional spindle member.
According to a further aspect of the present invention there is disclosed a security device comprising: sill; said rotatable sleeve member adapted to fit into said relatively stationary sleeve member; said spindle member adapted to replace a conventional spindle; wherein said rotatable sleeve member is rotatable and lockable in said relatively stationary sleeve member whereby said spindle member when in a locked position, does not protrude over an upper rim of said rotating sleeve.
Another feature of the present invention is a security device comprising members having tapered surfaces which taper inwardly as the member extends upwardly and one of said members being a spindle member or rotatable sleeve which is locked in a second of said members being a relatively stationary sleeve member by firstly pushing said spindle member or said rotatable sleeve downwards against a bias then rotating same allowing said spindle member or rotatable sleeve to be moved in the direction of said bias to come to a locked rest position. This means to unlock this rotatable sleeve requires a positive downward motion to counteract the bias or spring then rotation of the rotatable sleeve will pop upwards by virtue of the bias or spring.
In its broadest form the present invention comprises a security device comprising: rotatably engages said door frame or sill; sleeve member; sleeve member and said spindle member is slidably located within said second sleeve member such that when the spindle is in its lower position, it does not substantially protrude above said second member.
In an alternative form of the invention the locking device comprises a security device comprising: frame or sill said first sleeve member non rotatably engages the said door frame or sill; substantial longitudinal motion in said first sleeve member such that the spindle when in any position of engagement with said first sleeve member protrudes above said sleeve member.
The present invention is useful not only for the purpose of anti-theft devices but also for child safety.
An embodiment of the present invention will now be described, by way of example only, with references to the accompanying drawings in which:
FIG. 1 illustrates a first locking means according to the present invention and comprised of components A, B and C;
FIG. 2 illustrates a second locking means being comprised of components A and B;
FIG. 3 illustrates the embodiment of FIG. 2 assembled and placed on an existing locking spindle;
FIG. 4 illustrates the components of FIG. 1 in assembled condition on an in place locking spindle; and
FIG. 5 illustrates a door lock protector to be used with said components of FIGS. 1 and 2 to complete the security system.
As illustrated in FIGS. 1 and 4, a security device comprises a door lock spindle 1 having a downwardly extending shaft 2 having a hollow portion 4 therewithin adapted to receive a threaded insert 3. The upper end of the spindle 1 having inwardly tapering surfaces 5.
A relatively stationary outer sleeve 6 has a tapering flange portion 7 and includes an angled surface 8 for fitting against the sill su
REFERENCES:
patent: 2865667 (1958-12-01), Schlage
patent: 3206956 (1965-09-01), Trammell, Jr.
patent: 3247691 (1966-04-01), Martin
patent: 3451164 (1969-06-01), Kappelman
patent: 3623758 (1971-11-01), Trinca
patent: 3999788 (1976-12-01), Livingston
patent: 4169620 (1979-10-01), Pacura
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