U.S. patent application number 09/912910 was filed with the patent office on 2001-11-29 for attachment device for ergonomically suspending a handheld scanner.
This patent application is currently assigned to PSC Scanning, Inc.. Invention is credited to Bontly, Craig H..
Application Number | 20010045466 09/912910 |
Document ID | / |
Family ID | 23024754 |
Filed Date | 2001-11-29 |
United States Patent
Application |
20010045466 |
Kind Code |
A1 |
Bontly, Craig H. |
November 29, 2001 |
Attachment device for ergonomically suspending a handheld
scanner
Abstract
A handheld data reader includes a head portion and an attachment
device mounted to the head portion for suspending the scanner from
an overhead retractor or the like such that the scanner is oriented
substantially vertically with its handle directed substantially
downward. The attachment device includes an arcuate member that may
be configured to pivot away from the head portion. The attachment
device may be recessed in the head portion such that the arcuate
member is substantially coplanar with the adjacent outer surfaces
of the head portion.
Inventors: |
Bontly, Craig H.; (Eugene,
OR) |
Correspondence
Address: |
LYON & LYON LLP
633 WEST FIFTH STREET
SUITE 4700
LOS ANGELES
CA
90071
US
|
Assignee: |
PSC Scanning, Inc.
959 Terry Street
Eugene
OR
97402
|
Family ID: |
23024754 |
Appl. No.: |
09/912910 |
Filed: |
July 25, 2001 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
|
|
09912910 |
Jul 25, 2001 |
|
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09268846 |
Mar 16, 1999 |
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Current U.S.
Class: |
235/472.01 |
Current CPC
Class: |
G06K 7/10881
20130101 |
Class at
Publication: |
235/472.01 |
International
Class: |
G06K 007/10 |
Claims
What is claimed is:
1. A portable data reader comprising: a head portion; a handle
portion linked to the handle portion; an attachment means for
coupling the data reader to a tether used to suspend the data
reader above a ground surface, the attachment means being mounted
to the head portion such that, when suspended from the attachment
means, the data reader is oriented in a substantially upright
position wherein the handle portion is directed substantially
downward toward the ground surface.
2. A data reader according to claim 1 wherein the data reader is
substantially gun-shaped, the head portion having a front end and a
rear end, the attachment means being mounted to the rear end.
3. A data reader according to claim 1 wherein the attachment means
is integral to the head portion.
4. A data reader according to claim 1 wherein the attachment means
includes an arcuate member.
5. A data reader according to claim 4 wherein the arcuate member is
adapted to pivot into an open position for receiving a
coupling.
6. A data reader according to claim 1 wherein the head portion
includes a rear end and a front end, a recess being formed in the
rear end for receiving a portion of the attachment means.
7. A data reader according to claim 1 wherein the attachment means
includes a first arm and a second arm interconnected via an arcuate
member.
8. A data reader according to claim 7 wherein the attachment means
is seated in the head portion such that the arcuate member is
substantially coplanar with the adjacent outer surfaces of the head
portion.
9. A data reader according to claim 8 wherein the first arm and the
second arm of the attachment means are integral to the head
portion.
10. A data reader according to claim 1 wherein the attachment means
includes a substantially L-shaped member and an arcuate member
pivotally joined to the L-shaped member.
11. A data reader according to claim 10 wherein the L-shaped member
is integral to the head portion.
12. A handheld scanner comprising: a housing including a head
portion and a handle portion joined substantially orthogonal
thereto; a recess formed in the head portion substantially opposite
the junction of the head portion and the handle portion; a coupler
having a portion thereof seated in the recess, the attachment
device for coupling to a tether.
13. A scanner according to claim 12 wherein the recess is defined
by an inner front wall, an inner bottom wall, and opposing side
walls, the inner front and bottom walls having a channel for
receiving the attachment device.
14. A scanner according to claim 13 wherein the attachment means
includes a substantially L-shaped member and an arcuate member, the
L-shaped member configured to frictionally engage the channel.
15. A scanner according to claim 14 wherein the arcuate member is
pivotally joined to the L-shaped member.
16. A scanner according to claim 12 wherein the attachment means
includes a substantially L-shaped member integral with the head
portion and an arcuate member integral with the L-shaped
member.
17. A scanner according to claim 16 wherein the arcuate member is
configured to be substantially coplanar with the adjacent outer
surfaces of the head portion.
18. A scanner according to claim 12 wherein the arcuate member is
adapted to pivot away from the recess for receiving a solid-ring
coupler associated with one end of the tether.
19. A data reader comprising: a housing including a handle and a
head, wherein the handle has a top portion and a bottom portion,
wherein the head has a rear end and a front end, the rear end being
defined by an end wall joining a top wall, a bottom wall, and
opposing side walls; a coupler for coupling the data reader to a
tether used to suspend the data reader above a ground surface, the
coupler being disposed about the rear end such that the bottom
portion of the handle is directed substantially downward toward the
ground surface when the scanner is suspended.
20. A data reader according to claim 19 wherein a recess is
centrally formed within the rear end at about the junction of the
top wall and the end wall, the coupler having a generally convexly
arcuate member that is substantially coplanar with the adjacent
outer surfaces of the head when the coupler is seated in the
recess.
21. A data reader according to claim 20 wherein the coupler
includes a substantially L-shaped member integral with the arcuate
member.
Description
CROSS-REFERENCE TO RELATED APPLICATION
[0001] This application is a continuation application of U.S.
application Ser. No. 09/268,846 filed Mar. 16, 1999.
BACKGROUND
[0002] The field of the present invention relates to optical
systems for data reading and particularly to handheld scanners.
[0003] Ideal for inventory management, material handling,
manufacturing and especially package sortation and transportation,
data reading devices are indispensable tools for commercial and
industrial environments as well as the front office. Whether
stationary, handheld, or combination stationary/handheld, data
reading devices are useful for reading a wide array of indicia
found on consumer and industrial products, such as traditional
linear or one-dimensional bar codes, two-dimensional symbologies,
matrix array symbols, patterns and logos, signatures, and other
images.
[0004] Due to such efficiency and accuracy of data input, data
readers, especially handheld scanners, have become an integral part
of an employee or user's everyday work routine. Standing at a
check-out line, for example, a clerk may lift, rotate, and
otherwise manipulate a handheld scanner dozens of times. Because
frequent and repetitive motions can cause a user to suffer from a
Repetitive Stress Injury (RSI) or a Cumulative Trauma Disorder
(CTD), or other physical maladies, it is desirable to minimize the
need to manipulate the scanner and/or object scanned and otherwise
make any required manipulations as efficient as possible.
[0005] Traditional suspended handheld scanners have an attachment
point located on the end of the handle. Typically, an overhead
retractor that includes a retractable hanging cable or tether,
which includes a key-ring style clip at one end thereof, is linked
to the attachment point on the handle. When left free to hang from
the overhead retractor, the traditional suspended handheld scanner
is inverted from its vertical, or right-side-up orientation. Each
time the user operates the suspended scanner, the user must first
rotate the device to its vertical orientation.
[0006] Thus, the present inventor has recognized the desirability
of an ergonomic scanner design that minimizes the motion necessary
to use a suspended handheld scanner.
SUMMARY OF THE INVENTION
[0007] Having recognized these conditions, the present invention is
preferably directed to a handheld scanner having a head portion and
an attachment device mounted to the head portion for suspending the
scanner from an overhead retractor or the like. In this manner, the
scanner is oriented substantially vertically or upright such that
when grasped, the user does not have to rotate the scanner before
using same. In one type of handheld reader (the "gun-shaped" type)
with a head portion and a handle portion attached to the bottom of
the head, when suspended via an attachment device located on the
head portion, the handle portion is directed substantially downward
such that the user does not have to rotate the handle of the
scanner before using same.
[0008] The attachment device preferably includes an arcuate member
for coupling with a coupler, such as a key-ring style coupler,
associated with one end of a tether or cable of an overhead
retractor. The arcuate member may be configured to pivot away from
the head portion for receiving a solid-ring style coupler or the
like. Moreover, the attachment device may be recessed in the head
portion such that the arcuate member is substantially coplanar with
the adjacent outer surfaces of the head portion. Other and further
objects and advantages will appear hereinafter.
BRIEF DESCRIPTION OF THE DRAWINGS
[0009] FIG. 1 is a perspective view of a handheld scanner including
an attachment device according to a first preferred embodiment;
[0010] FIG. 2 is a perspective, detailed view of the rear end of
the handheld scanner shown in FIG. 1;
[0011] FIG. 3 is a perspective, detailed view of the attachment
device shown in FIG. 1;
[0012] FIG. 4 is a perspective view of an attachment device
according to a second preferred embodiment;
[0013] FIG. 5 is a perspective, detailed view of the rear end of a
handheld scanner including an attachment device according to a
third preferred embodiment.
DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS
[0014] Preferred embodiments will now be described with reference
to the drawings. For clarity of description, any element numeral in
one figure will represent the same element if used in any other
figure.
[0015] FIG. 1 illustrates an example of a data reading device such
as a bar code reader 10 configured as a handheld gun-shaped device
constructed of a lightweight plastic housing having a head portion
12 and pistol-grip type handle portion 14. Mounted inside the head
portion 12 is a removable scan module or assembly (not shown) that
contains a light source, a detector, and the optics and signal
processing circuitry.
[0016] In a common system, the light source, such as a gas laser
diode or semiconductor laser diode, generates a coherent light beam
which is repetitively scanned by a scanning mechanism and thereby
swept across the target indicia, such as a bar code symbol. The
detector senses light reflected or scattered from the code to
detect the bars and spaces of the code symbols and thereby derive
the encoded data. A variety of such moving-beam laser scanners and
their scanning mechanisms are known as described in, for example,
U.S. Pat. Nos. 5,475,206 and 5,629,510 or U.S. application Ser. No.
08/934,487, each of these disclosures hereby incorporated by
reference.
[0017] As an alternative to the laser-based scanner system, a
non-coherent light source, such as a light emitting diode (LED),
may be used to flood the target indicia with light. Solid state
imaging arrays, such as a one-dimensional imaging sensor (1D CCD or
CMOS sensor) or a two-dimensional imaging sensor (2D CCD or CMOS
sensor), detect the reflected or scattered light and determine the
presence of a bar or a space and thereby derive the encoded data.
Thus as used herein, a handheld scanner is any type of handheld
data reading device.
[0018] The present invention is particularly adapted for use with a
portable data reader such as handheld scanner 10 that is suspended
above a ground surface 16 when not being used by an employee or
operator. The scanner 10 may be suspended via an overhead retractor
(not shown) that includes a retractable hanging tether 11. As
referred to herein, a "tether" is a cable, rope, or chain that
typically includes a key-ring style clip 13 at one of its ends for
clipping onto the attachment point of a scanner and thereby suspend
same. Instead of a key-ring style clip 13, the tether 11 may
alternatively include a solid-ring style coupler for coupling with
a scanner 10.
[0019] Advantageously, the present invention permits the scanner 10
to be suspended above the ground surface 16 and hang via gravity in
a ready-to-use or right-side-up orientation. In other words, once a
scanner 10 including the present invention is coupled to a tether
11 and left free to hang in the air, gravitational forces will act
against the mass of the scanner 10 to the advantage of the user.
Thus, due to gravity, the freely suspended scanner 10 including the
present invention will be substantially "vertical" such that its
handle portion 14 is directed substantially downward (toward the
ground surface 16). Accordingly, in contrast to current handheld
scanners, a person using the present invention will not have to
make the frequent and repetitive motion of rotating the device 10
to its vertical orientation every time the user desires to operate
the data reader 10.
[0020] To achieve this ergonomic benefit, an attachment device 18
according to one aspect of the present invention is located on the
head portion 12 of the scanner 10. The attachment device 18 may be
disposed about any region of the head portion 12 as long as the
scanner 10, when freely suspended, has its handle 14 directed
substantially downward. For example, assuming the mass of the head
portion 12 is greater than the mass of the handle portion 14 and
the attachment point 18 is located on the head portion 12, gravity
would have a greater effect on the head 14 rather than the handle
12 such that the scanner 10 would be suspended in the desired
vertical orientation.
[0021] The attachment device 18 is preferably located about the
rear end 20 of the head portion 12 opposite the front end 22
thereof. This preferred location is due to the scanner's weight
distribution relative to the attachment point 18. As the mass of
the head portion 12 is typically greater than the mass of the
handle portion 14 and the handle portion 14 is attached to the
bottom of the head portion 12, an attachment point 18 located on
the rear end 20 enables the unit 10 to hang in the air in the most
ergonomically desirable orientation.
[0022] The rear end 20 is defined by a top wall 24, bottom wall 26,
opposing side walls 28, and adjoining end wall 30. As shown in FIG.
1, the attachment device 18 is centrally disposed about the upper,
rear end 20 of the head 12 near where the top wall 24 joins the end
wall 30. This attachment point is substantially opposite the
junction of the handle portion 14 and the head portion 12. The
present inventor has found this location ideal for maintaining the
handle 14 in a substantially downward direction when the scanner 10
is suspended via a tether 11.
[0023] FIGS. 1 and 2 illustrate that the attachment device 18 may
be recessed in the rear end 20 of the head portion 12 of the
scanner 10. The recess, defined by an inner front wall 34, an inner
bottom wall 36, and two opposing side walls 38, includes a channel
40. The channel 40 is formed in the inner front wall 34 and inner
bottom wall 36 and is configured to receive a portion of the
attachment device 18. In particular, the channel 40 is configured
to frictionally engage the first and second arms 42, 44 of an
L-shaped member 46 of the attachment device 18.
[0024] Referring to FIG. 3, the attachment device 18 includes a
first arm orthogonally joined to a second arm to define an L-shaped
member. A generally convexly arcuate member 48 joins the respective
free ends of the L-shaped member 46. The attachment device 18 is
dimensioned such that the arcuate member 48, when the attachment
device 18 is seated in the channel 40 of the recess 32, is
substantially coplanar with the adjacent walls 24, 30 of the
scanner 10.
[0025] Although the attachment device 18 illustrated in FIGS. 1-3
is shown as a separate, removable unit, the attachment device 18
may be integral with or permanently fixed to the head portion 12.
For example, the attachment device 18 and the head portion 12 may
be formed during a single molding process, such as injection
molding or the like, commonly known to those of skill in the
art.
[0026] FIG. 4 illustrates an alternate embodiment wherein the
attachment device 50 may be configured to pivot away from the head
portion 12 of the scanner 10. Referring to FIG. 4, an arcuate
member 52 is connected to an arm 54 of an L-shaped member 56 via a
living hinge 58. Other means of pivoting the arcuate member 52,
such as via a standard hinge, key-ring style clip, or the like
commonly known to those skilled in the art, may also be employed.
Moreover, the arcuate member 52 may be adapted to pivot away from
the second arm 60 of the L-shaped member 56, rather than the first
arm 54 of the L-shaped member 56. Advantageously, such a pivoting
arrangement enables the attachment device 50 to open and receive a
greater array of couplers associated with the tether 11. For
example, the attachment device 50 can receive a solid-ring style
coupler, as well as a key-ring style clip 13. Once received, the
arcuate member 52 may be closed and held in place against the head
portion 12 or the L-shaped member 56 via a detent mechanism, a
fastener, a key-ring style clip element, or the like commonly known
to those skilled in the art.
[0027] FIG. 5 illustrates an alternate embodiment of an attachment
device 62 that is not seated in a recess, such as recess 32 shown
in FIGS. 1 and 2. Referring to FIG. 5, this coupler 62 includes an
arcuate member 64 that is fastened against the head portion 12 of
the scanner 10. As was the case with the embodiments shown in FIGS.
1-4, the attachment device 62 is preferably located about the rear
end 20 of the head portion 12. The attachment device 62 may be
fastened at one or both of its ends via fasteners 66, such as
detents, bands, or any other means commonly known in the art.
[0028] Thus while embodiments and applications of the present
invention have been shown and described, it would be apparent to
one skilled in the art that other modifications are possible
without departing from the inventive concepts herein. The
invention, therefore, is not to be restricted except in the spirit
of the claims that follow.
* * * * *