U.S. patent application number 11/443585 was filed with the patent office on 2006-12-28 for system for mounting wheels to vehicle.
Invention is credited to Hans-Juergen Bormuth.
Application Number | 20060288577 11/443585 |
Document ID | / |
Family ID | 37482238 |
Filed Date | 2006-12-28 |
United States Patent
Application |
20060288577 |
Kind Code |
A1 |
Bormuth; Hans-Juergen |
December 28, 2006 |
System for mounting wheels to vehicle
Abstract
An apparatus is adaptable for selectively assembling various
wheels to complementary hubs defining a radial mechanical
connection with the wheel. A tool is movable relative the vehicle
body and adaptable for moving the wheel to the hub. A tool of the
apparatus is adaptable for adjusting the radial mechanical
connection. A camera is connected to the tool to generate visual
image of the wheel or the hub. A controller operably communicates
with the tool and the camera for regulating operational movements
of the tool.
Inventors: |
Bormuth; Hans-Juergen;
(Novi, MI) |
Correspondence
Address: |
HOWARD & HOWARD ATTORNEYS, P.C.
THE PINEHURST OFFICE CENTER, SUITE #101
39400 WOODWARD AVENUE
BLOOMFIELD HILLS
MI
48304-5151
US
|
Family ID: |
37482238 |
Appl. No.: |
11/443585 |
Filed: |
May 31, 2006 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
|
|
60686030 |
May 31, 2005 |
|
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Current U.S.
Class: |
29/894 |
Current CPC
Class: |
B23P 19/10 20130101;
B62D 65/12 20130101; B23P 19/069 20130101; Y10T 29/49481 20150115;
B25J 11/00 20130101 |
Class at
Publication: |
029/894 |
International
Class: |
B21D 53/26 20060101
B21D053/26 |
Claims
1. An apparatus for selectively assembling wheels to complementary
hubs extending from a vehicle body movable along an assembly line
with each hub defining a radial mechanical connection with the
wheel, said apparatus comprising: a controller; a tool for
multi-axial movement relative the vehicle body for moving the wheel
relative to the hub and for adjusting the radial mechanical
connection as the wheel is engaged with the hub; a device for
scanning and generating three dimensional image of at least one of
the wheel and the hub as said device moves in unison with said tool
and signals said controller a configuration of at least one of the
wheel and the hub thereby aligning the wheel relative the hub for
making the radial mechanical connection in response to a signal
received by said tool from said controller.
2. An apparatus as set forth in claim 1 wherein said device is
further defined by a 3-dimensional camera connected to and movable
with said tool relative the hub.
3. An apparatus as set forth in claim 2 wherein said tool is
further defined by a robot having an arm and a wrist portion
multi-axially movable relative to one another.
4. An apparatus as set forth in claim 3 wherein said tool is
further defined by a plurality of spindle nut-runners and a front
plate engaging said spindle nut-runners around said 3-dimensional
camera.
5. An apparatus as set forth in claim 4 wherein said tool includes
a pair of arms movable relative to said tool for clamping the
wheel.
6. An apparatus as set forth in claim 1 including a comparative
software of said controller having a pre-programmed data of
different configurations of the wheels and the tires, said
comparative software adaptable for receiving an evaluation signal
from said controller and comparing said evaluation signal with said
pre-determined data to determine a match and signaling tool through
said controller to engage the wheel and to move the wheel to the
hub for adjusting the radial mechanical connection between the
wheel and the hub as the match between said evaluation signal and
said pre-determined data is identified.
7. An apparatus for selectively assembling wheels to complementary
hubs extending from a vehicle body movable along an assembly line
with each hub defining a radial mechanical connection with the
wheel, said apparatus comprising: a tool for multi-axial movement
relative the vehicle body for moving the wheel to the hub with said
tool having a plurality of mechanical devices radially spaced about
said tool for adjusting the radial mechanical connection as the
wheel is engaged with the hub; and a camera disposed between said
mechanical devices and movable in unison with said tool for
scanning and generating three dimensional image of at least one of
the wheel and the hub.
8. An apparatus as set forth in claim 7 including a controller
operatively communicating with said tool and said camera with said
camera signaling said controller configuration of at least one of
the wheel and the hub thereby aligning the wheel relative the hub
for making the radial mechanical connection in response to a signal
received by said tool from said controller.
9. An apparatus as set forth in claim 7 wherein said tool is
further defined by a robot having an arm and a wrist portion
multi-axially movable relative to one another.
10. An apparatus as set forth-in claim 9 wherein each of said
mechanical devices is further defined by a plurality of spindle
nut-runners.
11. An apparatus as set forth in claim 10 wherein said tool
includes a pair of arms movable relative to said tool for clamping
the wheel.
12. An apparatus as set forth in claim 11 including a comparative
software of said controller having a pre-programmed data of
different configurations of the wheels and the tires, said
comparative software adaptable for receiving an evaluation signal
from said controller and comparing said evaluation signal with said
pre-determined data to determine a match and signaling tool through
said controller to engage the wheel and to move the wheel to the
hub for adjusting the radial mechanical connection between the
wheel and the hub as the match between said evaluation signal and
said pre-determined data is identified.
Description
RELATED APPLICATIONS
[0001] This Application claims the benefit of the provisional
patent application 60/686,030 for a Apparatus and System for
Mounting Wheels to a Vehicle, filed on May 31, 2005, which is
hereby incorporated by reference in its entirety.
BACKGROUND OF THE INVENTION
[0002] 1. Field of the Invention
[0003] The subject invention relates to a method and an apparatus
for assembling automotive vehicles and, more particularly, to a
method and an apparatus for assembling a wheel to a body of the
automotive vehicle.
[0004] 2. Description of the Prior Art
[0005] In the assembly of automotive wheel rims and tires, the tire
is mounted onto the wheel rim and then inflated before the wheel is
mounted onto an automotive vehicle. Numerous vehicle assembly lines
for mounting the wheels are known in the prior art and are widely
used today in the automotive industry. These assembly lines are
taught by the U.S. Pat. No. 5,125,298 to Smith; U.S. Pat. No.
5,345,675 to Yamanaka et al.; and U.S. Pat. No. 5,640,750 to
Yoshida et al. The U.S. Pat. No. 5,345,675 to Yamanaka et al., for
example, teaches a nut supply robot and a wheel mounting robot
mounted on a mounting base. The nut supply robot holds nuts taken
out from a parts feeder, for fixing each wheel. The wheel mounting
robot grips a desired wheel placed on a wheel placement station and
mounts the wheel to its corresponding front and rear wheel hubs.
The wheel mounting robot has an arm and a chucking unit. A pair of
cameras is spaced from the wheel mounting robot and are fixed by a
tripod. One of these cameras takes an image of the front wheel hub
of the vehicle while the other camera takes an image of the rear
wheel hub. An image processing apparatus is adjacent the wheel
mounting robot for processing the image information outputted from
these cameras. Each of these cameras detects the center of each of
the front and rear wheel hubs. A second set of cameras are mounted
on the wheel mounting robot and are located in front of, and
symmetrically with respect to the center of the wheel hub of the
vehicle to approximately coordinate of the center of the wheel hub
calculated from the image of the wheel hub taken by the cameras
mounted on the tripod. Revised coordinates of the center of the
wheel hub, a rotational displacement from a standard rotational
position of the wheel hub, and a turning angle of the wheel hub
toward the right or left with respect to a progressive direction of
the vehicle are calculated from the images obtained by the cameras
mounted on the robot.
[0006] The wheel mounting robot taught by the U.S. Pat. No.
5,345,675 to Yamanaka et al. requires multiple cameras with two of
them positioned on the mounting robot and two of them being spaced
from the mounting robot. The method of mounting the wheel to the
vehicle taught by the U.S. Pat. No. 5,345,675 to Yamanaka et al.
requires multitude of cameras and additional space on a
manufacturing floor thereby diminishing flexibility of the modern
manufacturing environment. In addition, the U.S. Pat. No. 5,345,675
to Yamanaka et al. does not teach or suggest a tool adaptable for
fastening a nut on each hub bolt provisionally affixed to the hub
of the vehicle body for fitting and securing the wheel to the
vehicle body.
[0007] The U.S. Pat. No. 5,640,750 to Yoshida et al. teaches a
wheel assembling apparatus for assembling different types of wheels
to different types of vehicle bodies conveyed along a vehicle
assembling line has a robot for fastening a plurality of nuts to
hub bolts provisionally affixed to the wheel so as to assemble the
wheel held by the robot hand to the vehicle body. The robot is
provided with a center pin attachment to which different types of
center pins, having been prepared correspondingly to center holes
of the different types of wheels, are selectively and removeably
attached. The center pin attached to the robot hand is fitted into
the center hole of the wheel hub and locates the wheel in position
with respect to the robot hand. The wheel assembling apparatus
cooperates with a pair of cameras adaptable to visually inspect and
determine whether the wheels are properly assembled to the vehicle
body. The cameras are spaced from the robot which requires extra
space for practicing the wheel assembling apparatus.
[0008] Alluding to the above, the U.S. Pat. No. 5,125,298 to Smith
teaches a wheel mounting station that includes a hub orientation
sensing assembly defined by a vision guidance system comprising a
camera and a robot controller adaptable to receive a signal from
the camera and transmitting a guide signal to a robot. Similar to
the aforementioned wheel assembly apparatus, this camera is spaced
from a tire mounting device. This layout requires additional space
of a manufacturing floor which diminishes flexibility of the modern
manufacturing environment.
[0009] The opportunity remains for a new design of a wheel mounting
system for installation of various wheels into respective hubs of a
vehicle body at a low cost, reduced time, thereby improving
manufacturing process and reducing space in manufacturing
environment. As such, the present invention eliminates one or more
of the aforementioned problems associated with these prior art
designs.
SUMMARY OF INVENTION
[0010] An apparatus of the present invention is adaptable for
selectively assembling wheels to complementary hubs extending from
a vehicle body movable along an assembly line of an assembly plant.
A radial mechanical connection defined between each hub and the
wheel is adjusted before the vehicle body is released from the
assembly line. A tool adaptable for multi-axial movement relative
the vehicle body is utilized to move the wheel from a wheel storing
location and to place the wheel adjacent the hub thereby
mechanically engaging the wheel with the hub. The tool is defined
by a robot having an arm and a wrist portion multiaxially movable
relative to one another. A front plate of the wrist portion
includes a plurality of mechanical devices, such as, for example,
spindle nutrunners, which are radially spaced about the front
plate. These spindle nutrunners adjust the radial mechanical
connection as the wheel is engaged with the hub. A camera is
disposed in the front plate of the tool. Preferably, the camera is
surrounded by the spindle nut runners. The camera is adaptable for
scanning and generating three dimensional image of at least one of
the wheel and the hub before the wheel is placed on the hub and
before the radial mechanical connection is adjusted. A controller
operatively communicates with the tool and the camera. A
comparative software of the controller is pre-programmed with data
of different configurations of the wheels and the hubs. The
comparative software is adaptable to receive a signal generated by
and send from the controller and to compare the signal with the
pre-determined data to determine a match between the pre-determined
data and the required configuration of the wheel. And signaling
tool through said controller to engage the wheel and to move the
wheel to the hub for adjusting the radial mechanical connection
between the wheel and the hub as the match between the evaluation
signal and said pre-determined data is identified.
[0011] An advantage of the present invention is to provide for a
tool adaptable for mounting wheels to the vehicle body wherein the
tool includes a single 3-dimensional camera connected to and
movable with the tool relative to the vehicle body for wheel
pattern and brake disc studs recognition.
[0012] Another advantage of the present invention is to provide a
vehicle assembly system that increases mount and torque of nuts
against the wheel.
[0013] Still another advantage of the present invention is to
provide an improved design of the assembly of the wheels to the
vehicle body that is not extremely complicated, like aforementioned
prior art designs, and is quite practicable, particularly when
processing a variety of wheel sizes and designs.
[0014] Accordingly, the assembly, shown in the present invention is
new, efficient, and provides for an effective way for selectively
mounting the wheels of various configurations into the respective
hubs at a high speed thereby offering the flexibility needed in the
modern manufacturing environments and reducing space of the
manufacturing floor of the assembly plant.
BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Other advantages of the present invention will be readily
appreciated as the same becomes better understood by reference to
the following detailed description when considered in connection
with the accompanying drawings wherein:
[0016] FIG. 1 is a general view of an assembly station for mounting
wheels on an automotive body;
[0017] FIG. 2 is a front view of a robotic device illustrating a
front plate having a plurality of spindles radially spaced from the
center of the front plate and a 3-dimentional camera disposed in
the center of the front plate;
[0018] FIG. 3 shows a side view of a robotic device having an
inventive tool for gripping the wheel and mounting the wheel to the
automotive body;
[0019] FIG. 4 is a perspective view of an alternative embodiment of
the inventive tool adaptable to be operated by a technician;
[0020] FIG. 5 is a perspective view of another alternative
embodiment of the inventive tool slidable movable along an overhang
rail or track and adaptable to be manually operated by a
technician; and
[0021] FIG. 6 is a general view of an alternative embodiment of the
assembly station for mounting wheels on an automotive body having a
plurality of manually operated tool.
DETAILED DESCRIPTION OF THE INVENTION
[0022] Referring to FIG. 1, a system of the present invention,
generally shown at 10, is designed for selectively assembling
various wheels, shown in phantom at 12, to complimentary hubs (not
shown) extending from an axle (not shown) of a vehicle body 14. The
wheel 12 includes a rim and a tire disposed about the rim or the
rim without the tire. As appreciated by those skilled in the art,
each hub and the wheel 12 define a radial mechanical connection
therebetween, such as bolts (not shown) extending outwardly from
the hub and respective nuts (not shown) for fastening the wheel 12
to the hub. The system 10 includes a conveyance device, generally
indicated at 16, for moving the vehicle body 14 along an assembly
path A through a gated area 18. Preferably two or more carousels
20, 22 deliver the wheels 12 to the assembly path A. The carousels
20, 22 are located adjacent one another and are separated by the
assembly path A. Each carousel 20 and 22 are designed to supply the
wheels 12 having different configurations. Preferably two or more
robotic devices, generally indicated at 24 and 26, are positioned
in opposite relationship with respect to one another about the
assembly path A. Each robotic device 24, 26 is movable along a
track 28 extending parallel to the assembly path A. Each robotic
device 24, 26 is adaptable for multi-axial movement relative to the
vehicle body 14 and the conveyance device 16. Each the robotic
device 24 or 26 is manipulated by a controller, generally shown at
28. The controller 28 will be discussed in greater detail as the
description of the present invention proceeds.
[0023] Referring to FIG. 3, each robotic device 24 and 26 is
defined by a mounting tool, generally indicated at 32, a robot arm
34 pivotably engaged within a base support portion 36 by an elbow
joint 38 thereby facilitating multi-axial movement of the mounting
tool 32 connected to the robot arm 34. The robot arm 34 moves the
mounting tool 32 into position to mount the wheel 12 engaged by the
mounting tool 32 to the hub. The mounting tool 32 includes an end
effector connection 40 with a spring tension (not shown) extending
between the mounting tool 32 and the robot arm 34 to facilitate
multi-axial movement of the mounting tool 32 relative to the hub.
The mounting tool 32 includes an operational unit 44 extending
along a longitudinal axis I and a base plate 46 connected to the
operational unit 44. A plurality of spindles or spindle nut runners
50 are radially spaced around the longitudinal axis I at the base
plate 46 to complement with radial mechanical connection of the
hub. Preferably, the spindles 50 are Atlas Copco nutrunners, which
do not intend to limit the present invention.
[0024] A pair of arms 52 and 54 are operably connected to the
operational unit 44 for clamping the wheel 12 as the wheel 12 is
moved from the carousels 20 or 22 to be mounted to the hub. The
arms 52 and 54 are hydraulically or electrically operated and are
adaptable for multi-axially movement relative to the longitudinal
axis I with respect to different operational modes of the mounting
tool 32. A 3-dimensional camera, generally indicated at 56 in FIG.
2, is connected to the base plate 46 at the longitudinal axis I.
The camera 56 is disposed in the center of the base plate 46 with
the plurality of the spindle nut runners 50 being radially spaced
around the camera 56, as best shown in FIG. 2. The camera 56 is
adaptable to scan the wheel 12 and the hub to determine a size,
angle, and location of aperture defined within an edge of the wheel
12, location of the bolts extending from the hub, and the like. The
image of the wheel 12 or the hub generated by the camera 56
provides the perception of depth of the wheel 12, the depth of the
openings defined in the wheel 12 to receive the complementary pins
extending from the hub. The information about the size, angle, and
location of the aperture and the pins is further transmitted to the
controller 28 operably communicating with the camera 56.
[0025] Preferably, the controller 28 includes a computer (not
shown), which operably and electronically communicates with the
robotic devices 24, 26 and which is cooperable with the camera 56.
The computer has an input/output interface, a central processor
unit, a random access memory, i.e. RAM, and a read only memory,
i.e. ROM. The input interface is electrically connected with the
robotic devices 24, 26 and the camera. The controller is
pre-programmed with the various tire wheel size and types of the
hub the wheel is mounted to. The ROM stores a program, i.e. a
comparative software that determines proper mating order and mating
engagement between the particular wheel 12 and the hub. The
controller 28 compares the image received from the camera 56 with a
plurality of pre-stored data of various images stored in memory of
the comparative software and identifies the particular
configuration of the wheel 12 and location of the apertures defined
in the wheel 12 with the complementary location of the bolts or
pins extending from the hub. Each of the images stored in memory is
associated with structural characteristics and physical dimensions
of the corresponding wheel 12 and hub including the orientation of
the aperture. The comparative software is adaptable to receive a
signal generated by and send from the controller 28 and to compare
the signal with the pre-determined data to determine whether there
is a match between the wheel 12 scanned by the camera 56 and the
pre-determined data of the wheel 12 required to be installed on a
particular body style or type of the vehicle 14. The comparative
software generates an output signal identifying the match to the
controller 28, which then signals the tool 32 to clamp the wheel 12
and to move the wheel 12 to the hub for adjusting the radial
mechanical connection between the wheel 12 and the hub as the match
is identified. However, is the match is not determined, the
controller 28 will direct the tool 32 to cancel the operation until
correct type of the wheel 12 is delivered to the robotic device 24,
26 by the carousel 20 or 22.
[0026] Referring back to FIG. 1, two bowl feeders, generally
indicated at 60 and 62, respectively, are located adjacent each
robotic device 24, 26. Each bowl feeder 60 and 62 is included in
the present system 10 to deliver nuts of four and five pattern
diameters to assemble tires of different configuration. The bowl
feeders 60 and 62 are positioned adjacent the conveyance device 16.
As the vehicle body 14 leaves the gated area 18, a first back-up
station 64 and a second back-up station 66, adjacent each robotic
device 24, 26, respectively, are provided to fasten the nuts with
the bolts, remove the entire wheel 12 from the hub, if, for
example, an error is made, or for any other back up operation. Each
back-up station 64 and 66 is operated by technicians and includes
an overhead rail (not shown) and a pair of manually operated
mounting tool, each is generally shown at 70 in FIGS. 1 and 4. Each
tool 70 is slidably movable relative to the assembly path A along a
secondary track 72. The functional aspects of the tool 70 are
similar to the aforementioned mounting tool 32. The tool 70
includes an operational block, generally indicated at 72 defined by
a front plate 74 and a rear plate 76 interconnected by side panels
78. A plurality of spindles 80 are radially spaced around the front
plate 74 to complement with the radial mechanical connection of the
hub. Preferably, the spindles 80 are Atlas Copco nut-runners, which
do not intend to limit the present invention. At least two arms 82
having an L-shaped configuration are operably connected to the
operational block 72 at the front plate 74 for clamping the wheel
12. The arms 82 are hydraulically or electrically operated and are
multi-axially movable with respect to different operational modes
of the manually operated tool 70. Preferably the vision system,
i.e. 3-dimensional (not shown) is connected to the operational
block 72 and is adaptable to scan the wheel 12 and the hub to
determine a size, angle, and location of aperture defined within an
edge of the wheel, location of bolts extending from the hub, and
the like. The camera of the operational block 72 is disposed in the
center of the front plate 74 with the plurality of the spindle nut
runners 80 being radially spaced around the camera. The information
about the size, angle, and location of the aperture and the bolts
is further transmitted to a compact controller system 84 disposed
at the manually operated tool 70. The compact controller system 84
is operatively communicated with the controller 28. A handle 86 is
connected to the operational block 72 to be used by the technician,
as illustrated in FIG. 1.
[0027] FIG. 5 shows an alternative embodiment of the manually
operated tool 70, which is generally indicated at 90. Preferably,
several tools 90 are slidably movable relative to the assembly path
A along the respective overhead tracks (not shown). The functional
aspects of the tool 90 are similar to the aforementioned mounting
tool 32 and the tool 70. The tool 90 includes an operational block,
generally indicated at 92 defined by a front plate 94 and a rear
plate 96 interconnected by side panels 98. A plurality of spindles
100 are radially spaced around the front plate 94 to complement
with the radial mechanical connection of the hub. Preferably, the
spindles 100 are Atlas Copco nut-runners, which do not intend to
limit the present invention. At least two arms 102 having an
L-shaped configuration are operably connected to the operational
block 92 at the front plate 94 for clamping the wheel 12. The arms
102 are hydraulically or electrically operated and are
multi-axially movable with respect to different operational modes
of the manually operated tool 90. Similarly to the tools 32 and 70,
a vision system, i.e. 3 dimensional or 2 dimensional camera (not
shown) is connected to the operational block 92 and is adaptable to
scan the wheel 12 and the hub to determine a size, angle, and
location of aperture defined within an edge of the wheel, location
of bolts extending from the hub, and the like. The camera of the
operational block 92 is disposed in the center of the front plate
94 with the plurality of the spindle nut runners 100 being radially
spaced around the camera. The information about the size, angle,
and location of the aperture and the bolts is further transmitted
to a compact controller system 104 disposed at the manually
operated tool 90. The compact controller system 104 is operatively
communicated with the controller 28. A handle 106 is connected to
the operational block 92 to be used by the technician, as
illustrated in FIG. 1. The compact controller systems 104 and 84
operate similar to the controller 28. The controller systems 104
and 84 include a computer (not shown), which operably and
electronically communicates with the tools 32 and 70 and the
respective cameras. The computer has an input/output interface, a
central processor unit, a random access memory, i.e. RAM, and a
read only memory, i.e. ROM. The input interface is electrically
connected with the robotic devices 32 and 70 and the respective
cameras. The controller is pre-programmed with the various tire
wheel size and types of the hub the wheel is mounted to. The ROM
stores a program, i.e. a comparative software that determines
proper mating order and mating engagement between the particular
wheel 12 and the hub. The controller systems 104 and 84 compares
the image received from the cameras with a plurality of pre-stored
data of various images stored in memory of the comparative software
and identifies the particular configuration of the wheel 12 and
location of the apertures defined in the wheel 12 with the
complementary location of the bolts or pins extending from the hub.
Each of the images stored in memory is associated with structural
characteristics and physical dimensions of the corresponding wheel
12 and hub including the orientation of the aperture. The
comparative software is adaptable to receive a signal generated by
and send from the controller systems 104 and 84 and to compare the
signal with the pre-determined data to determine whether there is a
match between the wheel 12 scanned by the cameras and the
pre-determined data of the wheel 12 required to be installed on a
particular body style or type of the vehicle 14. The comparative
software generates an output signal identifying the match to the
controller systems 104 and 84, which then signals the tool 32 to
clamp the wheel 12 and to move the wheel 12 to the hub for
adjusting the radial mechanical connection between the wheel 12 and
the hub as the match is identified. However, is the match is not
determined, the controller systems 104 and 84 will direct the tool
32 to cancel the operation until correct type of the wheel 12 is
delivered. Each controller systems 104 and 84 include a screen 107
to facilitate interaction between the technician 69 and the
respective tools 32 and 70 by allowing the technician to monitor
the assembly process and intervene when necessary.
[0028] An effector connection 108 with a spring tension 110 extends
between the tool 90 and a post 112 cooperably with the overhead
track to facilitate multi-axial movement of the tool 70 relative to
the hub of the vehicle body 14. FIG. 6 illustrates an alternative
embodiment of the inventive system, generally shown at 100, wherein
a pair of the manually operated tools 70 or 90 are positioned on
each side of the assembly path A for mounting the wheels 12 to the
hub. This embodiment is practicable in an assembly facility of a
smaller scale, such as tire shops, and the like.
[0029] While the invention has been described with reference to an
exemplary embodiment, it will be understood by those skilled in the
art that various changes may be made and equivalents may be
substituted for elements thereof without departing from the scope
of the invention. In addition, many modifications may be made to
adapt a particular situation or material to the teachings of the
invention without departing from the essential scope thereof.
Therefore, it is intended that the invention not be limited to the
particular embodiment disclosed as the best mode contemplated for
carrying out this invention, but that the invention will include
all embodiments falling within the scope of the appended
claims.
* * * * *