U.S. patent application number 16/183304 was filed with the patent office on 2019-05-09 for frontloading arbor gate.
The applicant listed for this patent is Wenger Corporation. Invention is credited to Patrick J. Finn, Christopher D. Whaley, Paul W. Zagajeski.
Application Number | 20190134525 16/183304 |
Document ID | / |
Family ID | 66328108 |
Filed Date | 2019-05-09 |
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United States Patent
Application |
20190134525 |
Kind Code |
A1 |
Finn; Patrick J. ; et
al. |
May 9, 2019 |
FRONTLOADING ARBOR GATE
Abstract
A frontloading arbor apparatus for use in counterweight rigging
operations configured to enable individual counterweight load
adjustment within at least one of a plurality of discrete
compartments while the remaining compartments are secured by one or
more gate mechanisms, thereby limiting a potential inadvertent
separation of the entire counterweight load during use. The
frontloading arbor apparatus including a rigid support frame having
a plurality of laterally oriented shelf members extending between a
pair of sidewalls, a corresponding plurality of gate mechanisms for
each of the plurality of discrete compartments, the plurality of
gate mechanisms pivotably coupled to one of the sidewalls and
configured to pivot between an open position and a closed position,
and a corresponding plurality of latches for each of the plurality
of gates, each of the plurality of latches configured to
independently secure each of the corresponding plurality of gates
in the closed position.
Inventors: |
Finn; Patrick J.; (Syracuse,
NY) ; Whaley; Christopher D.; (Phoenix, NY) ;
Zagajeski; Paul W.; (Liverpool, NY) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
Wenger Corporation |
Owatonna |
MN |
US |
|
|
Family ID: |
66328108 |
Appl. No.: |
16/183304 |
Filed: |
November 7, 2018 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
|
|
62582638 |
Nov 7, 2017 |
|
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Current U.S.
Class: |
1/1 |
Current CPC
Class: |
A63J 1/028 20130101;
A63J 1/02 20130101 |
International
Class: |
A63J 1/02 20060101
A63J001/02 |
Claims
1. A frontloading arbor apparatus for use in counterweight rigging
operations configured to enable individual counterweight load
adjustment within at least one of a plurality of discrete
compartments while the remaining compartments are secured by one or
more gate mechanisms, thereby limiting a potential inadvertent
separation of the entire counterweight load during use, the arbor
apparatus comprising: a rigid support frame having a longitudinally
oriented pair of sidewalls and rear wall extending between a top
portion and a bottom portion, the rigid support frame further
having a plurality of laterally oriented shelf members extending
between the pair of sidewalls, thereby defining a plurality of
discrete compartments within the rigid support frame; a
corresponding plurality of gate mechanisms for each of the
plurality of discrete compartment, the plurality of gate mechanisms
pivotably coupled to one of the sidewalls and configured to pivot
between an open position enabling counterweight load adjustment
within a single discrete compartment of the plurality of discrete
compartments, and a closed position configured to inhibit removal
of the counterweight load from the plurality of discrete
compartments; and a corresponding plurality of latches for each of
the plurality of gate mechanisms, each of the plurality of latches
configured to independently secure each of the corresponding
plurality of gate mechanisms in the closed position, thereby
limiting a potential inadvertent separation of the entire
counterweight load during use.
2. The arbor apparatus of claim 1, wherein the rigid support frame
is constructed of sheet metal.
3. The arbor apparatus of claim 1, wherein the rigid support frame
includes at least two laterally oriented shelf members, defining at
least three discrete compartments.
4. The arbor apparatus of claim 1, wherein the rigid support frame
includes at least three laterally oriented shelf members, defining
at least four discrete compartments.
5. The arbor apparatus of claim 1, wherein each of the plurality of
discrete compartments is shaped and sized to receive a portion of
the counterweight load in a stacked arrangement.
6. The arbor apparatus of claim 1, wherein at least one of the
plurality of discrete compartments is positioned at a height
configured to enable adjustment of the counterweight load without
bending over or climbing.
7. The arbor apparatus of claim 1, wherein the plurality of gate
mechanisms are configured to enable a user to view the contents of
the plurality of discrete compartments when the gate mechanisms are
in the closed position.
8. The arbor apparatus of claim 1, wherein the plurality of gate
mechanisms are constructed of a heavy wire material.
9. The arbor apparatus of claim 1, wherein the plurality of gate
mechanisms are pivotably coupled to the side wall via one or more
hinges.
10. The arbor apparatus of claim 1, wherein the plurality of
latches are operably coupled to the corresponding plurality of
gates.
11. The arbor apparatus of claim 1, wherein the plurality of
latches are of a rotary pawl type latch.
12. The arbor apparatus of claim 1, further comprising a
corresponding plurality of second latches for each of the plurality
of gate mechanisms, each of the plurality of second latches
configured to further aid in securing each of the corresponding
plurality of gate mechanisms in the closed position.
13. A arbor configured to enable individual counterweight load
adjustment within one or more of a plurality of discrete
compartments while the remaining compartments are secured in a
closed position, thereby limiting a potential inadvertent
separation of the entire counterweight load during use, the arbor
comprising: a rigid support frame having a longitudinally oriented
pair of sidewalls extending between a top portion and a bottom
portion, the rigid support frame further having a plurality of
laterally oriented shelf members extending between the pair of
sidewalls, thereby defining a plurality of discrete compartments
within the rigid support frame; a plurality of gates for each of
the plurality of discrete compartment, each of the plurality of
gates configured to pivot between an open position enabling
counterweight load adjustment within a single discrete compartment
of the plurality of discrete compartments, and a closed position
configured to inhibit access to the single discrete compartment;
and a corresponding plurality of latches for each of the plurality
of gates, each of the plurality of latches configured to
independently secure each of the corresponding plurality of gates
in the closed position, thereby limiting a potential inadvertent
separation of the entire counterweight load during use.
14. The arbor of claim 1, wherein the rigid support frame includes
at least two laterally oriented shelf members, defining at least
three discrete compartments.
15. The arbor of claim 1, wherein the rigid support frame includes
at least three laterally oriented shelf members, defining at least
four discrete compartments.
16. The arbor of claim 1, wherein each of the plurality of discrete
compartments is shaped and sized to receive a portion of the
counterweight load in a stacked arrangement.
17. The arbor of claim 1, wherein the plurality of gate mechanisms
are configured to enable a user to view the contents of the
plurality of discrete compartments when the gate mechanisms are in
the closed position.
18. The arbor of claim 1, wherein the plurality of latches are
operably coupled to the corresponding plurality of gates.
19. The arbor of claim 1, wherein the plurality of latches are of a
rotary pawl type latch.
20. The arbor of claim 1, further comprising a corresponding
plurality of second latches for each of the plurality of gates,
each of the plurality of second latches configured to further aid
in securing each of the corresponding plurality of gates in the
closed position.
Description
RELATED APPLICATION INFORMATION
[0001] This application claims the benefit of U.S. Provisional
Application No. 62/582,638 (filed Nov. 7, 2017), the contents of
which are fully incorporated herein by reference.
TECHNICAL FIELD
[0002] The present disclosure generally relates to manual
counterweight rigging apparatuses and systems, and more
particularly to frontloading arbor apparatuses and methods of use,
having a plurality of gate mechanisms configured to independently
secure stacked counterweight bricks within discrete
compartments.
BACKGROUND
[0003] Performance rigging in stage environments, such as theaters,
studios, concert halls, arenas, television studios, casino
showrooms, and cruise ships often include numerous items of
equipment such as scenery, lighting, curtains and other performance
enhancements that must be moved up and down or in and out of the
performance space. Typically, counterweights, set to generally
match the weight or load of the equipment, are employed for ease in
maneuverability and balancing of the equipment during use. In some
cases, the counterweights can be releasably connected to carriage
frames or arbors, thereby enabling the counterweight load to be
adjusted to account for changing weights of the items, which can
become heavier or lighter as scenery or lighting fixtures are added
or removed.
[0004] One type of arbor apparatus commonly used has two vertical
arbor rods which receive elongated, roughly H-shaped counterweight
bricks. Such known counterweight rigging systems suffer from a
number of known drawbacks. In particular, the method in which the
counterweight bricks are installed and removed from the arbor
apparatus dictate that the apparatus be taller than is actually
required for the amount of counterweight bricks needed. Coupled
with the heavy weight and awkward shape of the H-shaped
counterweight bricks, maneuvering of the weights can be difficult;
particularly when it involves bending or climbing to load or unload
the counterweight bricks. Further, in the event of a "runaway"--an
accident involving falling suspended stage rigging or
counterweights--the arbor rods can be prone to bowing out under
stress, which can result in the counterweight bricks falling off
during use. To counter potential distortion of the arbor rods, some
arbor apparatuses can include so-called "spreader plates," which
serve as active safety devices.
[0005] Another type of arbor apparatus, for example that disclosed
in U.S. Published Patent App. No. 2010/0258699, can define a rigid
support frame shaped and sized to receive frontloading of
counterweight bricks in a stacked arrangement. In some cases, the
arbor apparatus can include a plurality of shelf members that
extend generally in a lateral direction and that are spaced apart
in a longitudinal direction between the top and bottom ends.
However, like other counterweight rigging systems, these arbor
apparatuses also suffer from a number of drawbacks. In particular,
the counterweight bricks can be prone to shifting out of the
respective shelf members of the rigid support frame during use,
potentially falling to the stage below.
[0006] The present disclosure addresses these concerns.
SUMMARY
[0007] Embodiments of the present disclosure provide a frontloading
arbor apparatus, and method of use, having a plurality of gate
mechanisms configured to independently secure stacked counterweight
bricks within discrete compartments. In some embodiments, the arbor
apparatus is configured to eliminate the use of rods and spreader
plates to secure the weights within the arbor apparatus. In some
embodiments, the arbor apparatus eliminates awkward bending or
climbing in order to properly position the weights within the arbor
apparatus. In one embodiment, the arbor apparatus is configured to
enable weights to be added to discrete compartments or sections,
while the remaining compartments are secured by one or more gate
mechanisms, thereby limiting the potential weight release to a
single compartment instead of the entire arbor in the event of an
uncontrolled release. In one embodiment, each of the plurality of
gate mechanisms can include a latch configured to secure the gate
mechanism closed, even when subjected to multidirectional forces.
In one embodiment, each of the plurality of gate mechanisms can
further include a secondary latch for improved engagement and
safety.
[0008] One embodiment of the present disclosure provides a
frontloading arbor apparatus for use in counterweight rigging
operations configured to enable individual counterweight load
adjustment within at least one of a plurality of discrete
compartments while the remaining compartments are secured by one or
more gate mechanisms, thereby limiting a potential inadvertent
separation of the entire counterweight load during use. The arbor
apparatus can include a rigid support frame, a plurality of gate
mechanisms, and a plurality of latches. The rigid support frame can
have a longitudinal oriented pair of sidewalls and a rear wall
extending between a top portion any bottom portion. The rigid
support frame can further have a plurality of laterally oriented
shelf members extending between the pair of sidewalls, thereby
defining a plurality of discrete compartments within the rigid
support frame. The plurality of gate mechanisms can correspond to
each of the plurality of discrete compartments. The plurality of
gate mechanisms can be pivotably coupled to one of the sidewalls,
and can be configured to pivot between an open position enabling
counterweight load adjustment within a single discrete compartment
of the plurality of discrete compartments, and a closed position
configured to inhibit removal of the counterweight load from the
plurality of discrete compartments. The plurality of latches can
correspond to each of the plurality of gate mechanisms. Each of the
plurality of latches can be configured to independently secure each
of the corresponding plurality of gate mechanisms in the closed
position, thereby limiting a potential inadvertent separation of
the entire counterweight load during use.
[0009] In one embodiment, the rigid frame support can be
constructed of sheet metal. In one embodiment, the rigid support
frame can include at least two laterally oriented shelf members,
defining at least three distinct compartments. In one embodiment,
the rigid support frame can include at least three laterally
oriented shelf members, defining at least four discrete
compartments. In one embodiment, each of the plurality of discrete
compartments can be shaped and sized to receive a portion of the
counterweight load in a stacked arrangement. In one embodiment, at
least one of the plurality of discrete compartments is positioned
at a height configured enable adjustment of the counterweight load
without bending over or climbing. In one embodiment, the plurality
of gate mechanisms can be configured to enable user to view the
contents of the plurality of discrete compartments when the gate
mechanisms are in the closed position. In one embodiment, the
plurality of gate mechanisms can be constructed of a heavy wire
material. In one embodiment, the plurality of gate mechanisms can
be pivotably coupled to the side wall via one or more hinges. In
one embodiment, the plurality of latches can be operably coupled to
the corresponding plurality of gates. In one embodiment, the
plurality of latches can be of a rotary pawl type latch. In one
embodiment, the arbor apparatus can further include a corresponding
plurality of second latches for each of the plurality of gate
mechanisms, each of the plurality of second latches configured to
further aid in securing each of the corresponding plurality of gate
mechanisms in the closed position.
[0010] The summary above is not intended to describe each
illustrated embodiment or every implementation of the present
disclosure. The figures and the detailed description that follow
more particularly exemplify these embodiments.
BRIEF DESCRIPTION OF THE DRAWINGS
[0011] The disclosure can be more completely understood in
consideration of the following detailed description of various
embodiments of the disclosure, in connection with the accompanying
drawings, in which:
[0012] FIG. 1A is a front perspective view depicting an arbor
apparatus in accordance with an embodiment of the disclosure.
[0013] FIG. 1B is a rear perspective view depicting the arbor
apparatus of FIG. 1A.
[0014] FIG. 1C is a front view depicting the arbor apparatus of
FIG. 1A.
[0015] FIG. 1D is a profile view depicting the arbor apparatus of
FIG. 1A.
[0016] FIG. 1E is a rear view depicting the arbor apparatus of FIG.
1A.
[0017] FIG. 1F is a profile view depicting the arbor apparatus of
FIG. 1A.
[0018] FIG. 1G is a top view depicting the arbor apparatus of FIG.
1A.
[0019] FIG. 1H is a bottom view depicting the arbor apparatus of
FIG. 1A.
[0020] FIG. 2A is a front view depicting a gate mechanism in
accordance with an embodiment of the disclosure.
[0021] FIG. 2B is a profile view depicting the gate mechanism of
FIG. 2A.
[0022] FIG. 2C is a top view depicting the gate mechanism of FIG.
2A.
[0023] FIG. 3 is a close-up front view depicting a latch of the
arbor apparatus of FIG. 1C.
[0024] FIG. 4 is a perspective view of a latch in accordance with
an embodiment of the disclosure.
[0025] FIG. 5A is a front perspective view depicting an arbor
apparatus in accordance with a second embodiment of the
disclosure.
[0026] FIG. 5B is a rear perspective view depicting the arbor
apparatus of FIG. 5A.
[0027] FIG. 6A is a front view depicting a gate mechanism in
accordance with a second embodiment of the disclosure.
[0028] FIG. 6B is a profile view depicting the gate mechanism of
FIG. 6A.
[0029] FIG. 6C is a top view depicting the gate mechanism of FIG.
6A.
[0030] FIG. 7 is a perspective view of a latch in accordance with a
second embodiment of the disclosure.
[0031] While embodiments of the disclosure are amenable to various
modifications and alternative forms, specifics thereof shown by way
of example in the drawings will be described in detail. It should
be understood, however, that the intention is not to limit the
disclosure to the particular embodiments described. On the
contrary, the intention is to cover all modifications, equivalents,
and alternatives falling within the spirit and scope of the subject
matter as defined by the claims.
DETAILED DESCRIPTION
[0032] Referring to FIGS. 1A-1H, an arbor apparatus 100 is depicted
in accordance with an embodiment of the disclosure. In one
embodiment, the arbor apparatus 100 can include a rigid support
frame 102, one or more gates 104A-D, and one or more latches
106A-D.
[0033] The rigid support frame 102 can include a longitudinally
oriented pair of sidewalls 108A/B extending between a top portion
110 and a bottom portion 112. In one embodiment, the rigid support
frame 102 can further include a rear wall 114, also extending
between the top portion 110 and the bottom portion 112. In one
embodiment, at least one of the sidewalls 108A/B and/or rear wall
114 can be constructed of a thin rigid material, such as low carbon
steel sheet-metal, or the like. For example, in one embodiment, the
rigid support frame 102 can be constructed of two sections of
sheet-metal spot welded, riveted, or otherwise adhered together, so
as to form the generally longitudinally extending rigid support
frame 102. In one embodiment, one or more apertures 116 can be
defined by the rear wall 114 and/or sidewalls 108A/B, thereby
enabling a user to view contents within the rigid support frame
102.
[0034] In one embodiment, the rigid support frame 102 can further
include one or more laterally oriented shelf members 118A-C
extending between the pair of sidewalls 108A/B, thereby defining a
plurality of discrete compartments 120A-D within the rigid support
frame 102. For example, in one embodiment, the rigid support frame
102 can include at least two laterally oriented shelf members. In
another embodiment, the rigid support frame 102 can include at
least three laterally oriented shelf members 118A-C. The plurality
of discrete compartments 120 can be shaped and sized to receive a
portion of the counterweight load, for example individual
counterweight bricks in a stacked arrangement, such that two or
more individual counterweight bricks can be stacked within each of
the plurality of discrete compartments 120.
[0035] In one embodiment, at least one of the plurality of discrete
compartments is positioned at a height configured to enable
ergonomic adjustment of the counterweight load. For example, the
positions of the laterally oriented shelf members 118 can be at a
height above the ground such that bending over or climbing in order
to position the individual counterweight brick within the discrete
compartment 120 is not necessary.
[0036] Referring to FIGS. 2A-C, a gate 104 is depicted in
accordance with an embodiment of the disclosure. In one embodiment,
the arbor apparatus 100 can include a plurality of gates 104A-D,
such that one gate 104 corresponds to each discrete compartment 120
defined by the rigid support frame 102. Each of the plurality of
gates 104A-D can be pivotally coupled to one of the sidewalls 108A,
and can be configured to pivot between an open position enabling
counterweight load adjustment within a single discrete compartment
120, and a closed position configured to inhibit removal of the
counterweight load from the single discrete compartment 120. For
example, in one embodiment, the gates 104 can be coupled to the
support frame 102 via one or more hinges 122. In one embodiment,
each of the gates 104 is coupled to the support frame 102 via a
pair of hinges 122A/B.
[0037] In one embodiment, the gates 104A-D can be configured to
enable a user to view the contents of the plurality of discrete
compartments 120 when the gates 104 are in the closed position. For
example, in one embodiment, the gates 104 can be constructed of a
heavy wire or rigid metal rod material; although other
configurations are also contemplated, including a panels
constructed of a perforated sheet of rigid material, or panels
constructed of a transparent, translucent or opaque material,
thereby enabling a user to view contents within the discrete
compartments 120.
[0038] Referring to FIGS. 3 and 4, exemplary latches 106 are
depicted in accordance with embodiments of the disclosure. In one
embodiment, the arbor apparatus 100 can include a plurality of
latches 106A-D corresponding to each of the plurality of gates
104A-D. Each of the plurality of latches 106 can be configured to
independently secure each of the corresponding plurality of gates
104 in the closed position, thereby limiting a potential
inadvertent separation of the entire counterweight load during use.
In one embodiment, the latches 106 can be fixedly coupled to the
corresponding plurality of gates 104, for selective coupling to the
rigid support frame 102. For example, each latch 106 can be
operably coupled to a top, middle or bottom portion of the gate
104. Alternatively, the latches 106 can be fixedly coupled to the
coupled to the rigid support frame 102, for selective coupling to a
corresponding gate 104.
[0039] In one embodiment, the latches 106 can be dual stage rotary
pawl type latches for releasably securing a striker 124 in a rotary
pawl 126. The latch assembly can include a housing 128, a rotary
pawl 126, and an actuator 130. The housing 128 can have a sidewall
132 defining a notch 134 for receiving the striker 124. A trigger
136 can be pivotably attached to the housing, such that the
actuator 130 releases the rotary pawl 126, thus opening the latch
106. In one embodiment, the latches 106 can be constructed of a
high carbon steel 1.81.times.0.31, manufactured to SAE J839;
although use of other materials and compounds are also
contemplated. In one embodiment, each gate 104 can further include
a second latch (not depicted) configured to further aid in securing
each of the corresponding plurality of gates 104 in the closed
position.
[0040] Accordingly, embodiments of the present disclosure enable
access to individual discrete compartments 120 through the use of
integrated gates 104 that are hinged on one side, thereby enabling
an opening and closing of the gates 104 to selectively permit
access to the discrete compartments 120. The latch 106 can be
utilized to secure the gates 104 in the closed position, thereby
inhibiting a potential inadvertent separation of the contents
within each of the discrete compartments 120. Closure and
securement of the gates 104 can be achieved via the latch 106,
which can be operably coupled to each of the gates 104.
Accordingly, each gate 104 and its associated components work
independently from the other gates 104 in order to retain the
contents of the discrete compartments during a runaway, impact, or
other inadvertent, uncontrolled assent or descent, thereby limiting
a potential inadvertent separation of the entire counterweight load
during use.
[0041] Referring to FIGS. 5A-B, an alternative embodiment of an
arbor 200 is depicted. Similar to the previous embodiment, the
arbor 200 can include a rigid support frame 202, a plurality of
gates 204A-C (as depicted in FIGS. 6A-C), and a plurality of
latches 206A-C (an example of which is depicted in FIG. 7).
[0042] The arbor apparatuses 100, 200 can be arranged in series and
suspended between operating lines or loft cables (not shown). For
clarity and convenience, the arbor apparatuses 100, 200 are
illustrated without operating lines or loft cables. The operating
lines can extend vertically upwards from the arbor apparatuses 100,
200 to a head block (not shown), and vertically downwards from the
arbor apparatuses 100, 200 to a foot block (not shown). The arbor
apparatuses 100, 200 can further include guide systems (shoes,
rollers, etc.) (not shown). Optionally, proximate to the top
portion 110 and bottom portion 112, a number of holes and/or tabs
can be included that are compatible with universal shoes and/or
rollers of guide systems that can be provided by various
manufacturers, which can enable the arbor apparatus to be
implemented as a retrofit product for existing installations.
[0043] Various embodiments of systems, devices, and methods have
been described herein. These embodiments are given only by way of
example and are not intended to limit the scope of the claimed
inventions. It should be appreciated, moreover, that the various
features of the embodiments that have been described may be
combined in various ways to produce numerous additional
embodiments. Moreover, while various materials, dimensions, shapes,
configurations and locations, etc. have been described for use with
disclosed embodiments, others besides those disclosed may be
utilized without exceeding the scope of the claimed inventions.
[0044] Persons of ordinary skill in the relevant arts will
recognize that the subject matter hereof may comprise fewer
features than illustrated in any individual embodiment described
above. The embodiments described herein are not meant to be an
exhaustive presentation of the ways in which the various features
of the subject matter hereof may be combined. Accordingly, the
embodiments are not mutually exclusive combinations of features;
rather, the various embodiments can comprise a combination of
different individual features selected from different individual
embodiments, as understood by persons of ordinary skill in the art.
Moreover, elements described with respect to one embodiment can be
implemented in other embodiments even when not described in such
embodiments unless otherwise noted.
[0045] Although a dependent claim may refer in the claims to a
specific combination with one or more other claims, other
embodiments can also include a combination of the dependent claim
with the subject matter of each other dependent claim or a
combination of one or more features with other dependent or
independent claims. Such combinations are proposed herein unless it
is stated that a specific combination is not intended.
[0046] Any incorporation by reference of documents above is limited
such that no subject matter is incorporated that is contrary to the
explicit disclosure herein. Any incorporation by reference of
documents above is further limited such that no claims included in
the documents are incorporated by reference herein. Any
incorporation by reference of documents above is yet further
limited such that any definitions provided in the documents are not
incorporated by reference herein unless expressly included
herein.
[0047] For purposes of interpreting the claims, it is expressly
intended that the provisions of 35 U.S.C. .sctn. 112(f) are not to
be invoked unless the specific terms "means for" or "step for" are
recited in a claim.
* * * * *