U.S. patent number 3,907,239 [Application Number 05/434,902] was granted by the patent office on 1975-09-23 for bracket for holding transducer.
This patent grant is currently assigned to C. G. Manufacturing Co.. Invention is credited to Harold P. Ehrlich.
United States Patent |
3,907,239 |
Ehrlich |
September 23, 1975 |
Bracket for holding transducer
Abstract
In a bracket for holding a transducer of the type useful for
emitting sonar waves for detecting underwater terrain or fish, the
bracket includes a first expansion clamp, and a fastening member
generally disposed oppositely from said first expansion clamp, and
a spacer designed for rigidly holding these two components a fixed
distance from each other. The first expansion clamp may be secured
to a support, such as the shaft of a trolling motor, while the
fastening member is designed for holding the transducer. The
fastening member may comprise either a second expansion clamp,
having approximately three pairs of vertically aligned expansion
grips, or it may include an angulated plate member, the upright
portion of which is secured to the spacers, while a permanent form
of transducer may be mounted through an aperture provided in the
bottom portion of the plate member.
Inventors: |
Ehrlich; Harold P. (Florissant,
MO) |
Assignee: |
C. G. Manufacturing Co.
(Florissant, MO)
|
Family
ID: |
23726172 |
Appl.
No.: |
05/434,902 |
Filed: |
January 21, 1974 |
Current U.S.
Class: |
248/229.26;
D8/373; 24/339 |
Current CPC
Class: |
F16B
2/245 (20130101); Y10T 24/3444 (20150115) |
Current International
Class: |
F16B
2/24 (20060101); F16B 2/20 (20060101); A47B
096/06 () |
Field of
Search: |
;248/229,230,231,204,226E,316D,313 ;24/81B,81CC |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Parsons, Jr.; Marion
Assistant Examiner: Hafer; Robert A.
Claims
Having thus described the invention what is claimed and desired to
be secured by Letters Patent is:
1. In a bracket for holding a transducer to the shaft for a
trolling motor or other support and which is useful for detecting
underwater objects such as terrain and location of fish, said
bracket including at least one clamp means for securing said
bracket to a support, said clamp means comprising a first expansion
clamp for removably securing said bracket to a support, said
expansion clamp including at least two pairs of integral expansion
grips vertically aligned, at least one fastening member extending
substantially oppositely away from said first expansion clamp and
designed for securing a transducer, said fastening member
comprising a second expansion clamp, said second expansion clamp
including a base member, a series of pairs of arcuately shaped
expansion grips integrally extending from said base member, at
least one spacer means arranged fixed intermediate each expansion
grip of the first expansion clamp and the base member of the second
clamp and providing clearance for a secured transducer away from
its support, each spacer comprising a length of sleeve, a fastener
arranged through each sleeve for holding to its ends the grips of
the first expansion clamp and the base member of the second clamp,
and each said fastener being seated within the base member to
provide clearance for support of a transducer by its series of
expansion grips.
2. The invention of claim 1 and wherein said bracket is rubber
coated.
3. The invention of claim 1 wherein said bracket is polymer
coated.
4. The invention of claim 1 and wherein said second expansion clamp
includes three pairs of vertically aligned expansion grips
integrally formed with the base member.
5. In a bracket for holding a transducer to the shaft of a trolling
motor or other support and which is useful for detecting underwater
objects such as terrain and location of fish, said bracket
including at least one clamp means for securing said bracket to a
support, said clamp means comprising a first expansion clamp for
removably securing said bracket to a support, said expansion clamp
including at least two pairs of integral expansion grips vertically
aligned, at least one fastening member extending substantially
oppositely away from said first expansion clamp and designed for
securing a transducer, said fastening member comprising an angular
shaped member, said angular shaped member having an upright
portion, there being an aperture formed through the other portion
of said angular shaped member and disposed for fixedly mounting to
transducer therethrough, at least one spacer means arranged fixed
intermediate each expansion grip of the first expansion clamp and
the upright portion of said angular shaped member for providing
clearance for a secured transducer away from its support, each
spacer comprising a length of sleeve, and a fastener arranged
through each sleeve for holding to its ends the grips of the first
expansion clamp and the upright portion of the angular shaped
member.
6. The invention of claim 5 and wherein said first expansion clamp
includes a series of pairs of vertically aligned expansion grips,
and said spacer means arranged for holding said grips a fixed
distance from the angular shaped member.
7. The invention of claim 6 wherein said spacer comprises a length
of sleeve for each pair of expansion grips, and a fastener arranged
through each sleeve for fixing each pair of expansion grips and the
angular shaped member a fixed distance from each other.
8. The invention of claim 7 and wherein said bracket is rubber
coated.
9. The invention of claim 7 and wherein said bracket is polymer
coated.
10. In a bracket for holding a transducer to the shaft of a
trolling motor or other support and which is useful for detecting
under water objects such as terrain and the location of fish, said
bracket including at least one clamp means for securing said
bracket to a support, said clamp means comprising a first expansion
clamp for removably securing said bracket to a support, said
expansion clamp including at least two pairs of integral expansion
grips vertically aligned, at least one fastening member extending
substantially oppositely away from said first expansion clamp and
desigend for securing a transducer, said fastening member
comprising a second expansion clamp, said second expansion clamp
including a base member, a series of pairs of arcuately shaped
expansion grips integrally extending from said base member, a
spacer means for each said pair of grips of the first expansion
clamp for holding the same a fixed distance from the second
expansion clamp, and a fastener holding said base member to a
contiguous spacer means.
Description
BACKGROUND OF THE INVENTION
This invention relates generally to a bracket, and more
specifically, to a bracket for securing a sonic transducer to a
shaft of a trolling motor.
As any member skilled in the piscatorial art knows, game fishing by
the sportsmen has almost reached the obsession state, in which any
method or means for enhancing the catch becomes a necessity, and
one such instrument that has now become a tackle box requirement is
the instrument for employing sonar in observing the geographics of
the bottom of the lake, and for detecting the likelihood of
locations of fish, if not actually observe schools of the same.
Sonar instruments, which are generally referred to in the trade as
transducers, are now being used for the foregoing purpose, and
generally while the meter showing the sonar readings is maintained
on board the boat to be retained within view of the fishermen, the
transducer itself must be located under water for emitting and
receiving the signals for transmission by electrical line to the
display meter. The method generally used for holding the transducer
submerged heretofore has been to use the crude technique,
comprising simply the taping of said transducer to the shaft of the
trolling motor, with the connecting electrical wire extending
upwardly therefrom and into the boat where its signals are
displayed upon the meter box or control center. One drawback of
this method is the fisherman is never sure when the instrument may
get loose, in addition that the mounting of the transducer to the
motor shaft usually causes some blockage to its transmitted signal
since the motor and prop of the trolling motor are of a greater
diameter than its supporting shaft.
It is, therefore, the principal object of this invention to provide
a portable typebracket that may be quickly clamped onto the shaft
of a trolling motor or other support, and dispose its held
transducer to the side providing adequate clearance for undisrupted
sonar detection.
It is another object of this invention to provide a transducer
bracket for a fish locater in which the said bracket includes a
pair of expansion clamps to either side and providing for facile
and quick removal or installation of its transducer to its trolling
motor shaft.
Another object of this invention is to provide a permanent mount
for a transducer that can be easily clamped onto or removed from
the shaft of a trolling motor.
Another object of this invention is to provide a bracket
incorporating a plurality of expansion clamps that securely support
a sonar transducer to the shaft of a trolling motor.
A further object of this invention is to provide a sonar transducer
bracket which is coated so as to make it noncorrosive.
These and other objects will become more apparent to those skilled
in the art upon reviewing the summary of this invention, and
studying the description of the preferred embodiment in view of its
drawings.
SUMMARY OF THE INVENTION
The bracket explained in this application basically contemplates a
two-fold purpose, first to provide resiliency in a bracket by
incorporating expansion clamps that may easily secure the bracket
to the shaft of a trolling motor or other support, while in the
first embodiment, utilize a similar type expansion clamp for snugly
embracing the cylindrically shaped sonic transducer, or in the
second embodiment provide means for securing the transducer
permanently. The second purpose is to incorporate spacer means
between that portion of the bracket which clamps to the aforesaid
shaft or support, and the clamp or other fastening means that
secures the transducer, so as to displace the mounting of the
transducer away from the bulk of the trolling motor located
therebelow so as to eliminate any interference with the sonic beams
being emitted and received by the transducer.
The bracket of the two embodiments provides means for stably
securing the transducer to it, with one structure of the bracket
incorporating, in the perferred embodiment, a series of three pairs
of expansion grips, being vertically aligned, and forming the
expansion clamp for snugly securing and holding the cylindrically
shaped transducer within its grasp. The resiliency of the grips in
adhering to the transducer provides for its secure retention, and
prevents the transducer from being dislodged from operation of the
trolling motor as when any impact is encountered as when either the
boat or its motor may encounter an obstacle. In the modified
embodiment of the invention the more permanent type of sonic
transducer is rigidly fixed to an angular shaped plate of the
bracket, being generally L-shaped, with the upright portion of the
member being secured to the aforesaid spacers, while the
horizontally disposed portion of the member is provided with an
aperture therethrough and into which the transducer may be rigidly
fixed by means of any form of fastening, such as by a threaded
engagement.
Regardless of which style of transducer and bracket is used, since
during operation of the transducer it and the bracket will always
be submerged under water, it is desirable to encapsulate or coat
the bracket with any form of rubber or polymer so as to prevent or
delay its oxidation, in addition to enhancing the grasp or
retention attributes of its expansion clamps in their grip about
the transducer and the support.
Transducers of this type disclosed in this application, and as
described herein, are readily available from many sources, and
designed particularly for usage during fishing. Both the
cylindrically shaped portable type transducer, or the transducer
which is formed for permanent mounting, can be acquired from
companies such as Lowrance Electronics of Tulsa, Okla., and Ray
Jefferson Division of Jetronic Industries, located in Philadelphia,
Pa., in addition to other companies. Whichever style of sonic
transducer or depth finder may be acquired by the fisherman, the
bracket described and claimed herein has been designed to provide
for its accommodating and mounting any such transducer during
usage.
BRIEF DESCRIPTION OF THE DRAWING
In the drawing,
FIG. 1 discloses a partial view of a trolling motor showing the
bracket of this invention mounting a transducer to its motor
shaft;
FIG. 2 provides a side view of the bracket of this invention;
FIG. 3 provides a sectional view of one of the expansion grips
disclosing its encapsulation in either rubber or a polymer;
FIG. 4 provides a front end view of the fastening member of this
bracket which secures a transducer;
FIG. 5 provides a top view of the bracket of this invention;
FIG. 6 discloses a side view of a modified bracket showing an
angulated plate member for fixedly retaining the more permanent
type sonic transducer;
FIG. 7 depicts a front view of the fastening member, or L-shaped
member, of the modified bracket of FIG. 6; and
FIG. 8 provides a top view of the bracket shown in FIG. 6.
DESCRIPTION OF THE PREFERRED EMBODIMENT
In referring to FIG. 1, there is disclosed a portion of a trolling
motor comprising its shaft S that supports the propeller P and its
motor housing M. Mounted to the shaft S, and preferably below the
waterline, is the bracket 1 of this invention, shown embracing the
sonic transducer T in operative position for emitting and receiving
signals representative of the underwater terrain or other things
such as bodies of fish, tree stumps, or the like. An electrical
line L normally connects with the transducer and extends to the
boat where it connects with some form of a meter or display that
provides readings representative of the objects detected by the
sonar waves.
Referring to FIGS. 2 through 5, the bracket is shown comprising a
series of expansion clamps 2 which are generally vertically
aligned, to facilitate its insertion and snug retention upon the
shaft of the trolling motor or other support. While an expansion
clamp is herein described, other types of fixed clamping means may
also be used. Extending away from the expansion clamps 2, and
arranged generally oppositely disposed from said clamps, is a
fastening member 3 also shown being formed as a series of expansion
clamps incorporating three integrally connected pairs of expansion
grips 4 that also are substantially vertically aligned to provide
snug retention for the transducer T after its insertion therein. To
provide adequate dimension between the clamp means 2 and the
fastening member 3 for the purpose of providing clearance for the
transducer as when mounted to a trolling motor, there are provided
a series of spacers 5, generally one spacer for each expansion
clamp 2, and said spacers are preferably formed as a sleeve, each
having a channel 6 formed therethrough and which accommodates a
fastener 7 useful for rigidly securing the clamp 2 to the member 3.
Obviously these spacers could just as easily be formed as a rod
having threaded apertures at each end to accommodate fasteners.
Each pair of expansion grips 4 are formed integral with each other,
and are designed of rather arcuate shape to accommodate the
cylindrical form style of transducer. These grips 4 join with a
base 8 which is channel shaped in configuration so as to provide an
inward seating of the nut 9 of each fastener 7, thereby providing
clearance for the unencumbered seating of the transducer T within
the grips of the expansion clamp 3. At the opposite end of each
spacer 5 there is secured a disc like member 10 which provides a
stable base for retention of each expansion clamp 2 and its
securement in a vertically aligned relationship with other clamps 2
as shown both in FIGS. 2 and 5.
FIG. 3 is provided for showing that once the entire bracket is
assembled, it is entirely encapsulated or coated with either a
rubber or polymer material, such as shown at 11, in order to retard
corrosion, but also to provide greater frictional adherence of the
bracket to both the support to which its expansion clamps 2 mount
and for the retention of the transducer T within its fastening
member 3. Many type of polymers are available for this purpose,
such as a polyvinyl chloride.
A modification in the construction of this bracket is shown in
FIGS. 6 through 8, and generally the modified style of bracket is
designed for accommodating the more permanent type of sonic
transducer, as shown at TT, and which are designed having a
threaded portion upon which a nut 12 may be turned until it fixes
the transducer to another member, such as the bracket of this
invention.
The expansion clamp and spacers of this modified form of bracket
are identical in structure to those previously described, and also
includes clamps 2, each fastened against a disc 10 to the spacers
5, and retained thereto by means of a fastener 7. The fastening
member 13 of this modified form of bracket incorporates an angular
shaped component which is formed in an L configuration having an
upright portion 14 and a bottom or horizontally disposed integral
portion 15. A series of apertures are provided through the upright
portion 14 to allow for the insertion of the fasteners 7 and their
retention by means of the nuts 9. The horizontally disposed portion
15 of the angular shaped member is provided with an aperture 16
therethrough, and through which the threaded portion of the
transducer TT inserts for its eventual retention by the nut 12.
In view of the previous description of both the double expansion
clamp member bracket, as shown in FIG. 2, and the bracket for more
permanent mounting of the transducer, as shown in FIG. 6, it can be
seen that adequate clearance in the mounting of such transducers is
provided by the arrangement of the spacers 5 between the expansion
clamps and the fastening members that support the respective style
of transducer. It can been seen, from this description, that where
the transducer is simply adhered by means of tape directly to the
shaft S of the trolling motor, that any beam transmitted by the
transducer downwardly is obstructed by the motor housing M and
hence does not provide a complete pattern of the terrain or other
objects located thereunder. This bracket is designed to obviate
this impediment, and provides means for rapidly securing either a
permanent type transducer or a portable type transducer to a
bracket and also to the shaft or other support of the trolling
motor. When the boat operator desires to operate either the
trolling motor at its highest speed, or propel the boat by its
other major motor power, the entire bracket and transducer may be
rapidly disengaged from the shaft S by a simple forceful pulling of
the expansion clamps from their embracement of the same. The
transducer and its bracket may then be simply deposited in the boat
until they are once again reapplied for use as when it appears a
likely location for fishing is found.
* * * * *