U.S. patent number 3,906,369 [Application Number 05/507,013] was granted by the patent office on 1975-09-16 for function switch arrangement for hand-held remote control unit.
This patent grant is currently assigned to R O Products, Inc.. Invention is credited to William T. Dale, Raymond F. Pitman.
United States Patent |
3,906,369 |
Pitman , et al. |
September 16, 1975 |
Function switch arrangement for hand-held remote control unit
Abstract
A portable, hand-held remote control transmitter unit comprises
a housing which provides a pair of spaced parallel handgrips.
Located forwardly of the handgrips and extending between them is a
console having a function switch mounting surface with a V-shaped
horizontal profile. The mounting surface comprises a pair of
vertically inclined planes which intersect at an apex and diverge
outwardly therefrom. An array of thumb actuated function switches
is located on the mounting surface, arranged in upper and lower
rows. The upper row of switches is offset from the lower row so
that each switch is positioned within vertical range of the
operator's thumb. Since the apex of the resultant V-shaped rows
faces the operator as he grips the unit with his hands, each
function switch is positioned within horizontal range of the
operator's thumb as well. A pair of trigger switches, which
effectuate proportional control of the functions initiated by the
aforementioned function switches, are mounted on the underside of
the handgrips within range of the operator's forefingers. Either
trigger switch may be operated simultaneously with the
aforementioned thumb operated function switches, and the operator's
hand need not be moved. A safety disabling switch, located beneath
the function switch rows, extends transversely between the handgrip
frame members so that it, too, can be activated by either thumb
without disturbing the operator's grip on the unit.
Inventors: |
Pitman; Raymond F. (Prairie
Village, KS), Dale; William T. (Euless, TX) |
Assignee: |
R O Products, Inc. (Olathe,
KS)
|
Family
ID: |
24016929 |
Appl.
No.: |
05/507,013 |
Filed: |
September 18, 1974 |
Current U.S.
Class: |
341/20; D14/218;
200/553; 341/176; 340/12.5; 340/12.55 |
Current CPC
Class: |
H01H
9/0235 (20130101); H01H 2300/026 (20130101); H01H
2009/0257 (20130101) |
Current International
Class: |
H01H
9/02 (20060101); H01H 009/06 (); H01H 013/08 ();
H04B 001/034 () |
Field of
Search: |
;325/111,118,15,16,37,361,309,165,183,390,391,352,119
;340/147R,147MT ;343/225 ;D26/13R ;178/DIG.15 ;200/157,5A,18
;317/99,112 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Griffin; Robert L.
Assistant Examiner: Hearn; Robert
Attorney, Agent or Firm: Lowe, Kokjer, Kircher, Wharton
& Bowman
Claims
Having thus described our invention we claim:
1. A portable remote radio frequency controller structure
comprising
two spaced, parallel handgrips having forward and rearward
ends,
a switch console at the forward ends of said handgrips, said
console having a horizontal profile in the form of a V with the
apex of the V extending toward the space between the handgrips,
said console further including switch mounting surfaces in the form
of a pair of inclined symmetrically diverging planes intersecting
on the apex and extending forwardly and upwardly relative to said
handgrips, and
an array of thumb actuated function switch operating members
mounted on and extending from said mounting surfaces, each switch
in the array being located within range of an operator's thumb
while the fingers hold the handgrips.
2. The structure as in claim 1 wherein said switch operating
members are located on said mounting surface in a row extending
between the handgrips.
3. The structure as in claim 2, wherein said switch operating
members are located in upper and lower rows, the operating members
in the upper row being offset horizontally relative to those in the
lower row.
4. The combination as in claim 1, including at least one trigger
switch for controlling variability of certain functions, said
trigger switch mounted on the underside of the handle grip within
range of the forefinger of an operator's hand gripping the handgrip
for simultaneous manipulation thereby with a switch operating
member.
5. The structure as in claim 1, including
a switch operating member adjacent the side of a handgrip for
manipulation by the thumb of an operator.
6. A portable, hand-held remote radio transmitter unit having
electronic circuitry for generating and modulating and RF remote
control signal, the unit comprising
handgrip means for manually grasping and holding said unit,
a switch mounting console with a V-shaped horizontal profile, the
console located on said unit and comprising a pair of mounting
surfaces arranged as vertically inclined planes which intersect
each other to form a centrally defined apex and which diverge
outwardly therefrom, said apex facing said handgrip means, and
an array of thumb actuated function switch is electrically
interconnected with said electronic remote control circuitry for
remotely controlling predetermined events, each function switch
having an operating member located within horizontal range of a
thumb when a operator grasps said handgrip means with his
hands.
7. The combination as in claim 6 wherein said function switches
vertically stacked thereon to form upper and lower rows, the upper
row being offset horizontally relative from the next lower row so
that each row is within range of vertical thumb movement.
8. The combination as in claim 6, including at least one trigger
switch for controlling predetermined functions, the trigger
switches mounted on the underside of said unit within range of the
forefingers of an operator's hands for simultaneous manipulation
thereby as the operator grasps said handgrip and while said
function switches are within range of the operator's thumbs.
9. The combination as in claim 8 wherein said remote control unit
comprises an electrical circuit housing structure having said
mounting surface thereon, and said handle means comprises a pair of
generally tubular, parallel members integral with said circuit
housing structure and extending therefrom, the parallel members
separated from each other by a predetermined distance to thereby
form an opening between said frame members.
Description
BACKGROUND AND SUMMARY OF THE INVENTION
This invention relates generally to remote control devices. More
particularly the invention relates to hand-held radio remote
control transmitter units.
Radio remote control devices have become increasingly popular in
recent years, and a wide variety of applications have been found
for such devices. Radio controlled model airplane flying is a
notable example. Industrial uses exist as well. For example, in the
electric utility industry remote control mechanization has been
successfully employed in conjunction with utility derricks or
cranes and related vehicles and equipment.
Electric utilities have found that the use of remote controlled
equipment helps in labor saving in that the director of the
operation can also perform the control functions, thereby making it
possible to operate the equipment with only one operator rather
than two. An additional advantage of remote control equipment is
that the operator can position himself wherever he can obtain the
best vantage point from which to control the machine involved.
Radio remote control systems typically consist of a radio control
transmitter which through telemetry and/or related modulation
schemes, transmits function commands to various electrohydraulic
valves, servomotors, torque motors, relays or solenoids associated
with the device to be controlled. The sending unit is typically a
portable battery operated device with a plurality of switches and
controls, often arranged haphazardly on a simple box structure.
It is a fundamental object of this invention to provide a remote
control sending unit in which the various function switches and
controls are mounted in a unique configuration to maximize
operative efficiency.
It is another object of this invention to provide a remote control
sending unit which may be easily operated while it is being
carried.
It is a further object of this invention to provide a compact and
lightweight remote control sending unit which is extremely durable
and shock resistant.
To accomplish these objects we have invented a remote control unit
comprising a transmitter housing which provides two spaced parallel
members which function as handgrips. On the upper surface of the
transmitter housing, a plurality of function switch operating
members are arrayed in a pair of stacked, V-shaped rows. The apex
of each row is directed toward the operator, so that as he holds
the unit, the apex of each V-shaped row will face him. Every
function switch operating member is thus positioned within the
horizontal arc of normal thumb movement, so that convenient
accessibility is insured. The upper row of function switches is
"offset" from the bottom row so that each row of switches is
located within the vertical arc of normal thumb movement as
well.
Located on the transmitter housing beneath the function switch rows
and between the handgrips is a safety switch operator. This spring
biased control enables operation when depressed, and it is located
within convenient range of either of the operator's thumbs.
Located beneath each of the handgrips is a "trigger" switch for
effectuating proportional control of the various machine functions.
As the operator grasps the control unit with his hands the trigger
switches can be easily manipulated with his forefingers. At the
same time the aforementioned function switches are accessible to
the operator's thumbs. Thus all of the functions of the remote
control system can be easily selected by the operator as he grasps
the sending unit. Ease of operation is insured even while the
operator moves around because, as he grasps the control unit each
switch is positioned within convenient range of either a thumb or
forefinger.
DESCRIPTION OF THE DRAWINGS
In the accompanying drawings, which form part of the specification
and are to be read in conjunction therewith, and in which like
reference numerals are employed to indicate like parts in the
various views:
FIG. 1 is a perspective view of the hand-held remote transmitter
unit;
FIG. 2 is a side view of the hand-held remote control unit showing
one hand of the operator in position to operate the unit, and
illustrating, in a schematic way, the trigger switch linkage;
FIG. 3 is a top plan view of the remote control unit showing one
hand of the operator in position to operate the unit;
FIG. 4 is a simplified schematic diagram of typical circuitry
utilized within the control unit; and
FIG. 5 is a simplified schematic diagram of the remotely located
electronic and hydraulic apparatus to be controlled by the
hand-held remote control unit.
FIG. 1, a portable hand-held remote control transmitter unit is
generally indicated by the reference numeral 10. The unit comprises
a circuitry housing 12 which is connected with a battery housing 14
by a pair of generally tubular, oppositely disposed parallel
handgrips 15 and 16, thereby defining a rectangular opening 18
therebetween. The handgrips 15 and 16 function as grips for the
hands of the operator.
The operator may grasp the unit with each hand substantially as in
FIG. 2 (only one hand is shown), resting the palm of each hand
against the upper surface of the corresponding frame member and
curling the fingers around same and through opening 18. When he
does so, the operator's thumbs and forefingers will be positioned
so that various switches may be conveniently actuated.
The housing 12 contains the electronic circuitry necessary to
generate an appropriate remote control signal in response to switch
manipulation. RF energy generated by a transmitter located
therewithin is radiated via antenna 20, which is attached via
suitable linkage to the rear of housing 12. Battery pack 14
supplies power to the unit from batteries located therein in
accordance with the setting of on-off switch 21.
A plurality of thumb actuated function switch operating members
30-40 are arranged in upper and lower mounting rows 24 and 25,
which are located on a mounting surface comprised of a pair of
generally inclined, intersecting planes 26 and 27. Each of the
function switches 30-40 is electrically connected to circuitry
within housing 12, and each switch initiates a predetermined
remotely controlled operation or function. Planes 26 and 27, which
are integral with housing 12, intersect to form apex 48, and they
diverge outwardly therefrom. As seen in FIG. 3 apex 48 faces the
operator as he holds the device, and the horizontal profile of the
mounting surface is V-shaped.
Mounting row 24, the upper row, is "offset" from the lower mounting
row 25, so that each row (and each switch therein) is located
within range of the vertical arc struck by normal thumb movement
(FIG. 2). Additional rows of function switches could be added to
effectuate control of additional functions.
Thus the operator's thumb 42 may reach either row of function
switches by simple vertical movement and his hand need not be
moved. Thus position 42a (FIG. 2) is rapidly and efficiently
achieved by the operator without weakening his grip on the
device.
As seen in FIG. 3, the "V" shape of the mounting rows enables each
switch therewithin to be located within convenient range of the
horizontal arc struck by the movement of one of his thumbs, as the
apex of the "V" in each case faces the operator. Thus in FIG. 3 the
operator may attain position 42b without shifting the position of
his hand as it grips the handgrip.
Proportional control (i.e., speed control) of the functions
initiated by switches 30-40 is effectuated by the trigger switches,
45 and 46. The trigger switches are located underneath the
hand-grip members near the housing box 12. Each trigger switch
actuates a potentiometer via linkage which is located interiorly of
the handgrip. In the illustrated embodiment, the linkage comprises,
for each switch, a longitudinally movable shaft 45a which is
coupled to the trigger by means of a yoke 45b extending from the
trigger. The shaft is based toward the "trigger down" portion by a
spring 45c. The shaft cam is a rack gear section which drivingly
engages a pinion 45c connected to a potentiometer later to be
described.
When the operator properly grasps the remote control unit each of
his forefingers will contact a corresponding trigger switch for
convenient manipulation thereof (FIG. 2). At the same time, of
course, the operator's thumbs will be in an appropriate position to
operate the desired function switches as previously discussed. Thus
both functions may be simultaneously controlled by the
operator.
Extending transversely between handgrips 15 and 16 immediately
below the function switches is a safety switch operator 50, which
is instantly accessible to either of the operator's thumb. The
switch operator 50 is in the form of a plate which is pivoted on an
axis defined by axles 50a and spring loaded in the "up" direction.
The plate actuates a conventional off-on switch (the "deadman"
switch of FIG. 4) to enable and disable the hydraulic control
system. When the switch operator 50 is in the held down position
(by one thumb or the other), and as will be later described, the
hydraulic control system is operable; if released, the system
becomes disabled. Switch operator 50 immediately stops the remotely
controlled device from functioning when it is not positively
engaged. From FIG. 1 it is seen that switch 50 is located such that
it, too, is within the vertical arc of the operator's thumbs.
Illustrative electrical circuitry for the remote control sending
unit is shown in FIG. 4. The particular configuration is designed
for remote control of an electric utility crane, which will be
equipped with the apparatus shown in FIG. 5.
Each of the function switches 30-40 are electrically wired to coder
and logic board 60, which contains appropriate circuitry to
modulate the RF output of transmitter 65 in accordance with the
desired function or functions. Power is supplied to the circuit via
batter power supply 64, and modulated RF energy is radiated by
antenna 20.
Potentiometers 61 and 62 are actuated via the earlier described
linkage driven by trigger switches 45 and 46 (FIGS. 1 and 2). The
intensity or rate of movement of the various boom functions
selected by function switches 38-40 is controlled by potentiometer
61, and proportional control of the capstan, auger, and winch
functions respectively selected by switches 35-37 are accomplished
via potentiometer 61. Safety switch 50 and the remaining switches
30-34 are similarly interconnected with the coder and logic
circuitry.
The apparatus of FIG. 5, located on the machinery to be controlled,
receives and deciphers the coded transmissions from the transmitter
65. Logic circuitry within circuit board 89 generates a plurality
of hydraulic motor control signals which are delivered to the
hydraulic valve control motors 70a-76a to actuate the desired crane
functions. The main blocking valve 76, which in effect is in series
with hydraulic pump 80 and the remaining hydraulic valves, is a
"safety valve," which is ultimately controlled by safety switch 50
in the remote control sending unit. When switch 50 (FIG. 3) is not
depressed, motor 76a closes hydraulic valve 76 to interrupt further
machine operation.
Receiver 87 and power supply 88 are comprised of conventional
circuitry. The vehicle engine control outputs and the clamp
outputs, which are ultimately controlled by remote control switches
31-34 (FIG. 4), actuate conventional electromechanical transducers
and linkages (not shown).
From the foregoing, it will be seen that this invention is one well
adapted to attain all of the ends and objects hereinabove set forth
together with other advantages which are obvious and which are
inherent to the structure.
It will be understood that certain features and subcombinations are
of utility and may be employed without reference to other features
and subcombinations.
As many possible embodiments may be made of the invention without
departing from the scope thereof, it is to be understood that all
matter herein set forth or shown in the accompanying drawings is to
be interpreted as illustrative and not in a limiting sense.
* * * * *