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BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention generally relates to a mounting structure for CB
radios, tape players, and other electronic equipment, so that such
equipment can be readily removed for storage in a safe place, and includes
a base and slide with beveled components mechanically interconnecting the
base and slide for precise alignment and easy insertion and removal and
pin and socket-type electrical connections to assure contact between
conductive components on the base and slide.
2. Description of the Prior Art
Many automotive vehicles are equipped with CB radios, tape players, and
other similar equipment which usually are mounted under the dashboard, on
the transmission hump, on the firewall, on the roof, or in other
accessible areas, so that the controls of such equipment are accessible to
the operator of the vehicle. Such equipment has been subject to a high
incidence of theft leading to the provision of slide mounts to enable such
equipment to be removed from a readily observable and accessible area for
safe storage in the home, in the trunk of the vehicle, or in any other
desired safe location. Prior U.S. Pat. Nos. 3,822,049 and 3,513,478
disclose exemplary developments in this field. Both of these patents
disclose a two-component mounting structure, including a base which may be
suspended under the dashboard of an automobile, or the like, and a slide
which is attached to the radio, tape player, or other equipment, with
contact arrangements being provided so that when the slide is slid into
mounting engagement with the base, electrical circuits will be completed.
One of the problems which has existed with equipment of this type is
difficulty in properly aligning the slide with the base which is
especially a problem when trying to assemble the slide onto the base when
the person performing this task is at an awkward position in relation to
the components or when light conditions interiorly of the vehicle are very
poor. Another problem which has existed is damage to the electrical
contact arrangements which renders them inoperative. In addition to not
making electrical contact, CB radios may be severely damaged if they are
operated without the antenna being connected to the radio. Thus, if the
contact assembly for the antenna on the base or slide is damaged so that
completion of the coaxial circuits is not satisfactory, operation of the
CB radio can severely damage the radio and require costly repairs.
SUMMARY OF THE INVENTION
An object of the present invention is to provide a quick disconnect slide
mount for CB radios, amateur radios, tape player units, or similar
electrical or electronic equipment, which includes a base and a slide
constructed of plastic material having characteristics of strength,
slidability and electrical insulation and constructed so that the mating
parts self-align precisely and have a minimum of play when assembled.
Another object of the invention is to provide a slide mount in accordance
with the preceding object in which the engaging surfaces of the base and
slide are beveled with the slide including wraparound gripping parts which
are omitted for a portion of the length thereof at the inner end to
provide for easy engagement without fumbling or groping to bring the parts
into alignment with the interengaging parts also being tapered from front
to back so that when fully engaged, there is a minimum of side play.
A further object of the invention is to provide a slide mount in accordance
with the preceding objects in which the base and slide are locked together
by a spring tab or lug engaged with a detent with the spring locking lug
or tab being retracted by a longitudinally slidable release plate which is
drawn forward in the direction of removal to release the spring locking
tab so that the same forward longitudinal force exerted to release the
spring locking tab will also move the slide into disengagement from the
base.
Still another object of the present invention is to provide a slide mount
including a base and slide having pin and socket electrical connectors
snapped permanently into shoulder holes molded into the base and slide to
assure perfect alignment for engagement of the pins and sockets.
Still another important feature of the invention is to provide a slide
mount with pin and socket connectors as set forth in the preceding object
in which one pair of the pins and sockets is of the coaxial type for the
purpose of connecting an antenna with the pins so arranged that the power
and ground pins do not make contact until after all the other pins have
made contact in order to prevent damage to the equipment resulting from
being placed under power with either the antenna or speaker circuits
disconnected.
Yet another important feature of the present invention is to provide a
slide mount having two adjustable brackets for accommodating equipment of
different widths with the slide mount being attractive in appearance and
compact in construction and adaptable for various uses in quickly and
easily installing a CB radio or similar equipment in an automobile or
other vehicle and quickly disconnecting such equipment for removal.
These together with other objects and advantages which will become
subsequently apparent reside in the details of construction and operation
as more fully hereinafter described and claimed, reference being had to
the accompanying drawings forming a part hereof, wherein like numerals
refer to like parts throughout.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a perspective view of the slide mount of the present invention
illustrating the invention in use for supporting a CB radio in underlying
relation to the dashboard of a vehicle.
FIG. 2 is a longitudinal, sectional view taken substantially upon a plane
passing along section line 2--2 of FIG. 1 illustrating the structural
details and association of the components of the slide mount.
FIG. 3 is a transverse, sectional view taken substantially upon a plane
passing along section line 3--3 of FIG. 2 illustrating further structural
details of the slide mount.
FIG. 4 is a plan view of the slide with portions of the release plate
broken away to illustrate the spring return mechanism.
FIG. 5 is a fragmental sectional view illustrating specific structural
details of the coaxial pin and socket connector.
FIG. 6 is a fragmental rear perspective view of the slide.
FIG. 7 is a side elevational view illustrating the movement of the slide in
relation to the base when removing the slide and radio attached thereto.
DESCRIPTION OF THE PREFERRED EMBODIMENT
Referring now specifically to the drawings, the quick disconnect slide
mount of the present invention is generally designated by numeral 10 and
is illustrated in use for supporting a CB radio generally designated by
numeral 12 in suspended underlying relation to the dashboard 14 of an
automobile or other similar vehicle which is normally provided with a
generally horizontally disposed flange 16 at the lower edge thereof which
extends toward the firewall of the vehicle. Various types of amateur
radios, stereo tape players, or the like, may be supported by the slide
mount 10 and the slide mount 10 may be utilized for supporting the CB
radio or other equipment from the vehicle on supporting surfaces other
than a dashboard. For example, the slide mount 10 may be utilized to
support the equipment from the firewall, roof, transmission hump, or
accessory devices enabling the equipment to be positioned in any desired
relationship within the vehicle or other supporting surface. For example,
the slide mount may be used in combination with the device disclosed in
the pending application of Bradley W. Johnson, U.S. Ser. No. 772,342, for
Roof or Floor CB Radio Mount, filed Feb. 25, 1977. Accordingly, while the
device is disclosed in association with the dashboard 14 of a vehicle for
supporting a CB radio therefrom for easy disconnection, the slide mount
may be used for supporting various types of equipment in various
orientations.
The slide mount 10 includes two components, namely, a base 18 and a slide
20, with the base 18 being attached to the dashboard flange 16, or other
supporting surface, and the slide 20 being attached to the CB radio 12, or
other electrical or electronic equipment.
The base 18 includes a cover plate 22 having parallel side edge mounting
flanges 24 offset upwardly by an offset portion 26 with the flange 24
including a plurality of longitudinally spaced apertures 28 for receiving
mounting screws 30 which may be secured to the flange 16 in any suitable
manner, such as by screw threading directly through an opening in the
flange 16, with the fastening screws 30 being sheet metal screws, and the
like. The plurality of apertures 28 enables the mounting of the base 18 in
any desired relation to the flange 16 on the dashboard 14 thereby
rendering the device substantially universal in installation.
The base 18 also includes a hollow body generally designated by numeral 32
which includes a bottom wall 34 generally paralleling and spaced from the
cover plate 22. The inner or rear edge of the bottom wall 34 is provided
with an end wall 36 perpendicular thereto and engaged with the cover plate
22, as illustrated in FIG. 2, and the outer or front end of the bottom
wall 34 is provided with an upstanding front end wall 38, with the bottom
wall 32 having a centrally disposed recessed area 40 at the forward end
thereof and a longitudinally extending recess 42 centrally in the rear
thereof, as illustrated in FIG. 2, with the forward end of the recess 42
being upwardly offset to define a detent or shoulder 44. Each side edge of
the bottom wall 34 is provided with a vertically extending wall 46
perpendicular to the bottom wall 34 and an outwardly and upwardly inclined
flange 48 outwardly of the wall 46 and terminating below the upper edge of
the wall 46 with the flange 48 being reinforced by gussets 50 between the
wall 46 and the flange 48. The beveled or inclined construction of the
flange 48 and the relationship of the upper edge thereof to the walls 46
and the cover plate 22 is best illustrated in FIG. 3. The interior of the
side walls 46 is provided with bosses 52 into which screw threaded
fasteners 54 extend, with the fasteners 54 also extending through suitable
apertures in the cover plate 22 thereby removably securing the cover plate
22 to the body 32.
Disposed transversely between the side walls 46, generally in the center
thereof, is a transverse terminal block 56 having a plurality of screw
threaded fasteners 58 extending into the top surface thereof and forwardly
extending electrical conductors 60 connected thereto. At one end of the
terminal block 56, a clip 62 is provided for securing a length of coaxial
cable 64 thereto with the cable extending through a notch in the rear wall
36. Additional electrical leads for connection with the conductors 60 by
engagement with the fasteners 58 may pass through a notch in the rear wall
36 remote from the notch which receives the cable 64. The conductors 60
extend forwardly and are connected to sockets 66 which are embedded in a
socket block 68 with the sockets 66 in horizontal position. Likewise, the
coaxial cable 64 extends forwardly and is connected to a coaxial socket
70, likewise embedded in the socket block 68 with the sockets 66 and 70
opening through the front wall 38 of the body 32. An adequate number of
sockets and electrical conductors is provided for the installational
requirements, including the coaxial cable for connection with an antenna
used in conjunction with a CB radio, a power supply, a ground and speaker
leads, if necessary. All of the sockets terminate flush with the forward
surface of the end wall 38 so that when the slide 20 is removed, there is
no possible way that the sockets can be damaged and the bottom surface of
the wall 34 is substantially smooth, except for the recesses 40 and 42 and
the flanges 48 define smooth external wall surfaces. The base 18 is
permanently mounted and the coaxial antenna cable 64 is connected to the
coaxial cable 72 which extends to the external antenna through a standard
and conventional screw threaded coaxial connector 74. Also, the power and
ground leads and speaker leads, if used, also are permanently connected to
the terminal block 56, so that once installed, the base 18 becomes a
permanent portion of the vehicle structure. The body 32 including all of
the walls, terminal block and socket block is of one piece plastic
construction formed in any desired manner with sufficient rigidity and
insulation characteristics, so that the terminal block fasteners and
sockets are connected directly into the plastic material. The plastic
material may be any suitable color and may be textured to eliminate glare
although the base, when installed is substantially concealed by the
forward edge of the dashboard.
The slide 20 includes a plastic body generally designated by numeral 76
which includes a bottom wall 80 disposed in overlying engagement with the
top wall 82 of the housing of the CB radio 12 with the forward end of the
bottom wall 80 including a front end wall 84 oriented substantially flush
with the forward end wall 86 of the CB radio 12 from which the controls 88
normally project, although this relationship may vary, i.e., the radio 12
may be spaced rearwardly of or forwardly from the front wall 84 depending
upon the locational position of the normally provided fastening screw or
screws 90 that are threaded into the side wall 92 at each side of the CB
radio. Centrally of the bottom wall 80, a transversely extending,
downwardly opening channel-shaped member 94 is provided, with the
channel-shaped member extending beyond the edges of the body 76, as
illustrated in FIG. 4. The outer ends of the channel-shaped member 94
receive L-shaped brackets 96 which are secured thereto by a fastener 98
extending through the channel-shaped member 94 and through a slot 100 in
the leg thereof which underlies the channel-shaped member 94. The
depending leg of the bracket 96 includes a pair of slots 102 for
adjustably and selectively receiving the screw fastener 90, thus enabling
the slide to be secured to CB radios or other units having various
dimensional characteristics. The fastener 98 includes a nut 104 on the
inner end thereof underlying the horizontal leg of the bracket 96 and a
sheet metal cage 106 secures the nut frictionally and longitudinally
adjustably to the slot 100 to facilitate assembly of the brackets 96 and
the fasteners 98 in adjusted position. Also, the channel-shaped member 94
may be provided with additional apertures, such as at 108, to receive the
fasteners 98 when it is desired to receive and support a relatively narrow
CB radio or other equipment. Also, as illustrated in FIG. 2, the bottom
edges of the channel-shaped member 94 are in the same horizontal plane as
the bottom surface of the bottom wall 80 for stabilizing the body 76 with
respect to the housing of the CB radio 12.
The side edges of the bottom wall 80 of the body 76 includes an upward
projection generally in the form of an inverted V-shaped side member 110,
the configuration of which is illustrated in FIG. 3, and includes an inner
wall 112 which inclines upwardly and outwardly and an outer wall 114 which
inclines downwardly and outwardly and which terminates in a vertical
bottom portion 116, as illustrated in FIG. 6. Where the channel-shaped
member 94 intersects the side members 110, the channel-shaped member is
continuous, as illustrated in FIG. 3. Also, reinforcing webs 118 are
provided for the interior of the hollow side members 110 with the web
members toward the rear of the side members not being complete to define
an opening 120 for a purpose hereinafter described.
At the upper edge of each of the hollow side members 110, an inwardly
extending wraparound flange 122 is provided which extend inwardly toward
each other in generally parallel relation and define a generally
horizontal surface facing downwardly for engaging the top edges of the
flanges 48 on the base 18, as illustrated in FIG. 2. The upper surface of
the flanges 122 are inclined downwardly and inwardly slightly and the rear
edge of the flange 122 is spaced forwardly from the rear edge of the side
members 110, as illustrated in FIGS. 4 and 6, with the rear edge of the
flange 122 being inclined or slanted as indicated by numeral 124. This
construction enables the rear edge of the slide 20 to be brought upwardly
into engagement with the forward edge of the base 18 so that the
downwardly and inwardly inclined surfaces defined by the rear end portions
of the walls 112 rearwardly of the flanges 122 will centralize and align
the slide 20 with the base, since the inclined surface of the flanges 48
will mate with and engage the inclined surfaces of the walls 112. The
inclined rear end edges 124 of the flanges 122 also facilitate such
alignment by engaging the ends of the side walls 46 on the base 18 if
misaligned. The inclined configuration of the flanges 48 and the walls 112
together with the flanges 122 provides a precise and quick alignment of
the slide and base and these surfaces are provided with a slight taper so
that when the slide is moved all the way rearwardly into mounting
engagement on the base, there is very little side or vertical play left,
thus providing a stable and substantially rigid connection between the
slide and base.
Adjacent the forward end of the side members 110, the walls 112 and 114 are
slanted downwardly and provided with an inclined top wall or connecting
wall surface 126, as illustrated in FIG. 1. Also, extending between but
terminating short of the side members 110 is a transversely extending pin
block 128 having a plurality of electrical connector pins 130 embedded
therein and projecting from the rearward surface thereof for telescoping
electrical connection with the sockets 66 when the slide is assembled onto
the base. The pin block 128 also includes a coaxial connector pin assembly
132 which coacts with and is telescopically engaged with the coaxial
socket 70 with both of these components including telescopic, concentric
contacts which are insulated from each other by an insulating sleeve. The
coaxial pin and socket connection 132 is connected with a coaxial cable
134 which extends through an opening 136 in the inner wall 112 of the side
member 110 adjacent thereto and extends through the openings 120 in the
reinforcing member 118 and out the rear of the side member 110 as,
illustrated in FIG. 6, with a conventional connector 138 on the terminal
end thereof for engagement with the female connection 140 on the rear of
the CB radio 12. Also, the pin 130 having the ground wire 142 connected
thereto extends rearwardly alongside of the coaxial cable 134 and is
connected to a screw threaded fastener or terminal 144 at the rear of the
side member 110, as illustrated in FIG. 6, with a negative symbol 146
formed in the plastic material indicating that the ground wire or black
wire from the CB radio is to be connected thereto, as indicated by numeral
148 in FIG. 7. The power conductor or red wire 150 extends through a
similar opening in the other side member 110 and is connected to a
terminal 152 at the rear thereof, as illustrated in FIG. 6, with a
positive symbol 154 formed in the plastic material so that the power lead
or red wire to the CB radio 12, as indicated by numeral 156, will be
connected thereto. Also, electrical leads 158 extending to an external
speaker plug 160 parallels the power lead 150 and is connected with
appropriate pins 130. Thus, if an external speaker is utilized, the
speaker plug 160 may be suitably plugged into the female external speaker
jack 162 on the rear of the CB radio in a well known manner, so that the
external speaker connected with the speaker terminal 58 in the base may be
actuated. The hollow side members 110 serve as conduits to carry the
cables and wires in a protected and visually concealed manner to the rear
of the slide where they will be in close proximity to the connections on
the rear of the radio. As illustrated in FIG. 5, a visor or ledge 164
extends rearwardly in slightly upwardly offset relation from the pin block
128 so that it is in overlying relation to the pins 130 and 132 and also
will be received in overlying relation to the socket block 68, as
illustrated in FIGS. 2 and 5, for protecting the pins when the slide is
disconnected from the base. The base 18 and cover plate 22 form a fully
enclosed junction box to protect connections from damage or shorting
especially when the radio and slide are removed. Also, the pin 130
connected with the power lead 150 is slightly shorter than the other pins
in order to assure that before the power connection is made to the CB
radio, all of the other pins will have made electrical contact, thereby
avoiding damage to the CB radio or other equipment which can occur if the
radio is powered prior to connection of the antenna or speaker unit.
For releasably securing the slide 20 in connected relation to the base 18
and retaining the pins and sockets in electrical contact, the bottom wall
80 is provided with a spring locking tab or lug 166 in the form of a flat
leaf spring member having one end anchored to a recess 168 in the bottom
wall 80 by a rivet 170 or other suitable fastening device and the free end
thereof projecting upwardly and forwardly through an opening 172 provided
in the recess 168 and engaged with the shoulder or detent 44 when the
slide 20 moves all the way to the rear in relation to the base 18, as
illustrated in FIG. 2, with the resiliency of the spring tab 166 enabling
the deflection of the free end thereof downwardly as the slide moves
rearwardly onto the base until the free end of the locking tab aligns with
the detent or shoulder 44 at which time it will spring upwardly into
engagement with the detent or shoulder 44, thus locking the slide in
place.
In order to release the slide, a release plate 174 is disposed in overlying
relation to the bottom wall 80 with the release plate sliding along the
upper surface of the channel-shaped member 94 and upwardly offset portions
of the bottom wall 80. The release plate 174 includes an opening 176
through which the spring locking tab or lug 166 passes. The release plate
174 is provided with a plurality of slot-like openings 178 therein having
an oval-shaped configuration with the major access thereof extending
longitudinally for receiving fastening screws 180 which are threaded into
the bottom wall in a manner which will enable longitudinal sliding
movement of the release plate 174 within the limits defined by the slots
178. The forward end of the release plate is downwardly offset, as at 182,
with a forward offset portion 184 engaging the upper surface of the
forward end portion of the bottom wall 80. The forward end of the slide
portion 184 terminates in an upwardly extending end wall 186 spaced from
and generally parallel to and slightly longer than the front wall 84 with
the upwardly facing area 188 providing a finger grip for receiving the
fingers 190 of the hand 192 of a person releasing the spring lock tab 166
by sliding the release plate 174 forwardly so that the rear edge of the
opening 176 will engage the upwardly and forwardly inclined upper surface
of the spring lock tab 166, thus biasing or deflecting the spring lock tab
downwardly for disengaging it from the detent or shoulder 44 thus enabling
the slide to be moved forwardly for quick disconnection from the base 18.
The upstanding member 186 defines a release bar or hand gripping element
to facilitate forward movement of the release bar by engaging the fingers
therewith and pulling forwardly so that a single force will be utilized to
move the release bar forwardly, thus releasing the locking tab 166 and at
the same time moving the CB radio forwardly along with the slide to the
position illustrated in FIG. 7, thus facilitating release of the slide.
The rear of the upwardly offset portion 168 of the bottom wall 80 is
provided with a centrally disposed pin 194 which has a terminal rear end
extending through an aperture 196 in the depending rear end 198 of the
release plate 174. A coil compression spring 200 encircles the pin 194
with one end engaging the downturned rear end 196 of the release plate and
the other end engaging the offset 168, thus spring biasing the release
plate 174 rearwardly in the manner illustrated in FIG. 4, so that the
screw fasteners 180 are in the forward portions of the slot-like openings
178 and the release bar 186 is disposed rearwardly of the forward wall 84
and the rear edge of the opening 176 does not retain the locking tab 166
in a downwardly deflected position. Thus, the normal position of the
release plate 174 is such that when the slide is moved rearwardly onto the
base, the locking tab 166 will be operative to lock the slide in position
when it is fully assembled onto the base.
In order to protect the pin block 128 and the pins and associated
electrical wiring, the release plate 174 is provided with a generally
L-shaped protector plate 202 having an angulated flange 204 secured to the
offset portion 182 by fasteners 206 with the horizontal portion of the
protector plate 202 overlying and slidable along the top surface of the
pin block 128 slightly rearwardly of the offset flange or visor 164, as
illustrated in FIG. 5, so that even when the release plate 174 is moved
forwardly, the rear edge of the protector plate 202 will still overlie the
forward edge of the pin block 128 in order to protect the electrical
conductors, coaxial cable and socket and pin assemblies.
The beveled or inclined surfaces guide the radio or other equipment into
position for easier insertion and provides precise alignment. The
slide-type latch is released by movement in the same direction as removal
of the radio for easy withdrawal. The power connections, including the pin
and socket connections, eliminate damage to the radio which sometimes can
result from damaged or corroded leaf spring type contacts and all of the
connectors are permanently encapsulated in the base and slide to prevent
damage and misalignment of these components. The spring tab and release
plate are constructed of metal, as is the cover plate on the base. The
other components, except for the screw fasteners and electrical
conductors, are constructed of plastic material, thus rendering the device
relatively inexpensive to manufacture and neat and attractive in
appearance with the base which remains on the vehicle being devoid of any
sharp edges or protuberances which could possibly cause injury.
The foregoing is considered as illustrative only of the principles of the
invention. Further, since numerous modifications and changes will readily
occur to those skilled in the art, it is not desired to limit the
invention to the exact construction and operation shown and described, and
accordingly, all suitable modifications and equivalents may be resorted
to, falling within the scope of the invention.
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