Supports – With anti-theft or anti-tamper means
Patent
1986-06-24
1987-08-18
Machado, Reinaldo P.
Supports
With anti-theft or anti-tamper means
248 271, 248201, F16M 1300
Patent
active
046871721
DESCRIPTION:
BRIEF SUMMARY
The present invention relates to a combined handle and lock mechanism for a dashboard mounted apparatus such as a car radio or the like, comprising a latch member which can be moved into and out of engagement with a cooperating blocking means fixed relative to the dashboard.
With the increasing complexity and costliness of car radios, it has become common practice to mount the radio in a theft preventive cassette in the dashboard, so that the driver can take the radio with him when leaving the car. The requirements placed on such a cassette installation are firstly that the apparatus must be held securely in the cassette so that it does not vibrate and rattle, and secondly that the apparatus must, with a few simple manipulations, be able to be inserted and locked, as well as unlocked and removed, from the cassette.
In the cassette installation described in DE OS 2903176, the apparatus housing itself is provided on opposite sides with spring tongues and the cassette (the frame portion) mounted permanently in the dashboard is provided with recesses to fit the tongues, into which the tongues snap when the apparatus is inserted into the cassette. In order to remove the apparatus, the spring tongues must be moved out of the cassette recesses. This is done with the aid of a pair of separate U-shaped rods, which are inserted through openings in the front plate of the apparatus and thereby push the tongues out of the recesses at the same time as the rods hook on to the tongues, to then be used as handles to pull the apparatus out of the cassette. One of the disadvantages of this arrangement is however that one must always keep track of a pair of loose components, without which it is very difficult to remove the apparatus.
The purpose of the present invention is to achieve a mechanism of the type described above, without any loose or protruding parts, which is simple to handle and holds the apparatus securely and rattle-free in place in the dashboard.
This is achieved according to the invention by means of a mechanism, which has a slide guide to be securely fastened to the apparatus, a slide displacably mounted in the slide guide and having a handle shaped end portion, a latch member displacably mounted relative to the slide guide, and interacting portions of the slide and the latch member, said portions, in a predetermined inserted position of the slide, holding the latch member in a locked position and blocking the slide against being pushed out but permitting further insertion of the slide from said predetermined position to disengage the latch member and permit the slide to be pushed out past said predetermined position to the outer end position in which the handle protrudes outside the slide guide.
The invention will be described in more detail with reference to an example shown in the accompanying drawing, where the figure shows a side view of a car radio with partially cut away handle and locking mechanism according to the invention.
In the figure, 1 designates an apparatus case and 2 a front plate which in a conventional manner frames the front of the apparatus and forms a transition to the surrounding dashboard. A mechanism according to the invention (generally designated 4) is screwed to either side 3 of the apparatus case.
The mechanism 4 comprises a bottom plate 5 and a cover plate 6, which are screwed securely to each other. The bottom plate 5 has pressed raised portions 7, so that a space is formed between the plates. In the space, a pair of guides 8 and 9 of a low friction material, preferably a plastic material, are fixed and between them there is guided a slide 10. The slide 10, which is somewhat resilient and suitably consists of the same material as the guides 8 and 9, has a lower guide surface 11, which slides against a guide surface 12 on the lower guide 8, and upper guide surfaces 13, 14, which slide against guide surfaces 15, 16, respectively, on the upper guide 9. The slide 10 is guided with a slight clearance (not shown) between the guides 8 and 9 and is at its innermost end made with a cur
REFERENCES:
patent: 3352586 (1967-11-01), Hakason
patent: 4103983 (1978-08-01), Morrison
AB Volvo
Chin-Shue Alvin
Machado Reinaldo P.
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