EP3074579B1 - Pole support system - Google Patents
Pole support system Download PDFInfo
- Publication number
- EP3074579B1 EP3074579B1 EP14863679.8A EP14863679A EP3074579B1 EP 3074579 B1 EP3074579 B1 EP 3074579B1 EP 14863679 A EP14863679 A EP 14863679A EP 3074579 B1 EP3074579 B1 EP 3074579B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- support
- lower support
- pole
- guide member
- support system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
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Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/18—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures movable or with movable sections, e.g. rotatable or telescopic
- E04H12/182—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures movable or with movable sections, e.g. rotatable or telescopic telescopic
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
- F21V21/14—Adjustable mountings
- F21V21/22—Adjustable mountings telescopic
Definitions
- the present disclosure relates generally to a telescoping pole system for industrial lightning with an internal passage for electrical wiring and configured for a telescoping function facilitating worker access to a remote fixture.
- Lighting systems are used in many applications, with different constructions provided for different environments. Lighting is particularly important in industrial applications, which often requires work in low light conditions (e.g., at night). However, due to environmental conditions, accessing pole-mounted lights can be difficult and often dangerous. Adjustable lighting systems have been developed for industrial applications. As a result of the perils of ladder use in industrial settings, systems have been developed to safely lower the remote end (top end) of a light pole. Attention is drawn to US 2 708 493 A , which shows telescoping masts. The exemplary embodiment illustrated is adapted for the support of a television antenna. The mast comprises a number of sections formed by a plurality of tubular members progressively reduced in diameter and disposed in telescoping engagement.
- WO2008/126340A1 , DE3434517A1 , CN201944559U and US2490125A disclose pole systems according to the state of the art.
- a pole support system as set forth in claim 1 is provided. Further embodiments are inter alia disclosed in the dependent claims. Aspects of the present disclosure relate to systems, methods, and devices for lighting fixture pole support.
- General embodiments may include a pole support system including a tubular lower support; a guide member interior to the lower support, the guide member extending substantially along a length of the lower support; a telescoping upper support inside the lower support and axially movable between an extended position and a retracted position, the upper support being at least partially received in an annular space between the lower support and the guide member; a biasing member biasing the upper support to the extended position; and a locking assembly partially surrounding the lower support at one end of the lower support.
- the locking assembly may include a body having a passage in which the upper support slides therethrough, the body attached to the lower support to enclose the passage at a first end while maintaining the passage in fluid communication with the interior of the lower support; and a lock configured to selectably engage the upper support to constrain axial motion of the upper support.
- the biasing member may include a spring in the annular space between the lower support and the housing.
- the body may be attached to the lower support by at least one selectably sealingly engageable fastener.
- the guide member may include fluid-tight tubular.
- the system may include a base configured for coupling with the fluid-tight tubular and the lower support at corresponding ends opposite the locking assembly and configured to isolate an interior of the fluid-tight electrical conduit from the annular space between the lower support and the housing.
- the base may include a channel between the first end of the base and a second end of the base in fluid-tight communication with the fluid-tight tubular.
- the passage may be an axial passage.
- the lock comprises a translational member configured to translate into the passage against the upper support through an opening transverse to the axial passage.
- the locking assembly may include a raised surface in the passage opposite the translational member.
- the raised surface may be a ledge.
- the system may include electrical wiring, wherein a portion of the electrical wiring within the upper support is configured to conform to a length of a portion of the upper support above the locking mechanism.
- the system may include a wiring seal.
- the guide member may be coaxial with a longitudinal axis of the lower support.
- a pole support system including a tubular lower support; a fluid-tight wiring chamber interior to the lower support, the wiring chamber extending substantially along a length of the lower support; a telescoping upper support inside the lower support and axially movable between an extended position and a retracted position, the upper support being at least partially received in an annular space between the lower support and the wiring chamber; a biasing member biasing the upper support to the extended position; and a locking assembly partially surrounding the lower support at one end of the lower support.
- the locking assembly may include a body having a passage in which the upper support slides therethrough, the body attached to the lower support to enclose the passage at a first end while maintaining the passage in fluid communication with the interior of the lower support; and a lock configured to selectably engage the upper support to constrain axial motion of the upper support.
- the tubular lower support may have an interior, an upper end, and a base end, with the base end having a connector configured to connect with a pre-existing feature.
- the fluid-tight wiring chamber may be disposed within the biasing member and may block fluid flow from the interior of the lower support to a location exterior to the lower support.
- the pre-existing feature may be an electrical enclosure, such as a junction box or electrical fitting for industrial electrical conduit.
- the pole support system may include a wiring assembly having a first portion disposed in the upper support and a second portion disposed in the lower support, wherein the tubular wiring chamber seals around the second portion at an opening in the lower support to prevent fluid flowing via the opening into the electrical enclosure.
- the pole support system may include an adaptor coupled to the tubular wiring chamber, and a wiring seal coupled to the adaptor, where the wiring seal and adaptor cooperate to block fluid flow to the interior of the fluid-tight tubular wiring chamber.
- the locking assembly may include a body having a passage configured for sliding transmission of an upper support therethrough, the body configured for selectable sealing engagement to a tubular lower support to enclose the passage at a first end while maintaining the passage in fluid communication with the interior of the lower support; and a lock configured to selectably engage the upper support to constrain axial motion of the upper support.
- Exposed wiring for lighting systems is susceptible to environmental hazards, such as moisture.
- Some known systems have a passage interior to the pole running to the remote end, and wiring (wires, cables, etc.) running through the passage to the light fixture.
- Known systems are inefficient in protecting the installed wiring. Normal movement of the components often damages internal wiring (e.g., "pinching").
- traditional industrial fixtures are configured for use on a pole with a particular operational axis (e.g., the axis while in use). Because most industrial fixtures are not designed for use with a lowerable pole, changing the operational axis introduces instability in the fixture.
- One reason for the instability is the introduction when lowering the fixture of additional forces that are not present during normal operation. Forces having a component normal to the operational axis may be particularly problematic.
- traditional lowered poles using joints or the like for lowering may result in instability of the fixture, particularly while the pole is deviated from its operational axis. This instability may result in fixtures detaching prematurely, and possibly falling from height, which is a safety hazard.
- embodiments of the present disclosure may relate to spring assisted telescoping industrial light poles.
- the upper support or upper pole
- the lower support or lower pole
- the telescoping supports along with the spring assist, allow the top mounted light fixture to be moved up and down.
- the light fixture can be raised or lowered to the position of a user in the identical operational axis.
- safety is increased, as there is less risk of accident when moving the light fixture in relation to a user.
- aspects of the present disclosure also relate to safeguards for the wiring providing power to the fixture.
- pole support system in environmental conditions likely to be experienced upon installation in an outdoor or marine industrial setting (e.g., mines, offshore oil rigs).
- an outdoor or marine industrial setting e.g., mines, offshore oil rigs.
- a 10-foot pole support system of the present design may be rated for winds of over 300 miles per hour.
- Embodiments of the disclosure include pole support systems and devices for incorporation within a pole support system.
- the pole support system may be configured for use with traditional light fixtures and enable height adjustment of a fixture via a telescoping upper pole. More specific example embodiments are described below.
- Embodiments relate to wired support systems (e.g., 'wired poles').
- a wired pole may include wiring or cabling operatively coupled with the lighting or other mounted item.
- Example embodiments were chosen and described in order to best explain the principles of the disclosure and their practical application, and to enable others of ordinary skill in the art to understand the disclosure for various embodiments with various modifications as are suited to the particular use contemplated.
- Those skilled in the art will understand, however, that the invention may be embodied as many other devices, systems, and methods.
- various aspects of the methods and devices may be combined in various ways or with various products, including existing products.
- Many modifications and variations will be apparent to those of ordinary skill in the art.
- the scope of the invention is not intended to be limited by the details of example embodiments described herein. The scope of the disclosure should be determined through study of the appended claims.
- FIGS. 1-3 illustrate a pole support system for industrial lighting in accordance with embodiments of the present disclosure.
- the pole support system 100 comprises a lower support 106, a telescoping upper support 102, and a locking assembly 104 attached to the locking assembly 104.
- the lower support 106 may be tubular. Tubular as used herein may include tubular with cylindrical, rectangular, elliptical, or irregular cross-sections.
- the pole support system supports at least one light fixture 122.
- Light fixture 122 may be a traditional light fixture.
- FIG. 3 shows a cross section of pole support system 100.
- pole support system 100 further includes a guide member 108 interior to the lower support 106.
- Upper support 102 lies inside the lower support 106 and is axially movable between an extended position and a retracted position.
- Locking assembly 104 at least partially surrounds the lower support 106 at one end of the lower support 106.
- the upper support 102 may be at least partially received in an annular space 109 between the lower support 106 and the guide member 108.
- the guide member 108 may be concentric with the lower support 106 and/or upper support 102.
- a biasing member 110 in the annular space 109 biases the upper support 102 to the extended position.
- the biasing member 110 may be implemented as a spring (as shown), an elastomeric member, a pneumatic or hydraulic system, and so on.
- an attached light fixture 122 is accessible by adjusting the pole support system height via the upper support 102 retracting into the lower support 106.
- the telescoping connection between the upper support 102 and the lower support 106 is aided by the "spring assist" from the biasing member 110.
- the spring assist reduces the amount of strength needed to raise or lower the upper support to a desired height.
- the light fixture 122 is secured at a desired height by the lock assembly 104.
- Locking assembly 104 includes a chamfer away from the upper support on the upper surface to resist standing water while maintaining structural strength.
- Other embodiments may include an arched upper surface, a level upper surface, or other designs.
- the lower surface may be the same or different than the upper surface. It is to be understood that varying designs may have associated advantages and disadvantages that recommend their use, and that all such variations are within the scope of the present disclosure.
- FIGS. 4A & 4B illustrate locking assemblies in accordance with embodiments of the present disclosure.
- Locking assembly 104 includes a body 114 having a passage 115 in which the upper support 102 ( FIG.3 ) slides therethrough.
- the passage 115 may be tailored to the upper support 102 to allow sliding translation of upper support 102 while discouraging ingress of moisture and particulates.
- the body 114 is attached to the lower support 106 to enclose the passage 115 at a first end while maintaining the passage 115 in fluid communication with the interior of the lower support 106.
- the body 114 may be attached to the lower support 106 by at least one selectably sealingly engageable fastener (e.g., via threaded connection or mechanical seal), by use of adhesives, epoxies, or resins, or using other fasteners.
- at least one selectably sealingly engageable fastener e.g., via threaded connection or mechanical seal
- adhesives e.g., epoxies, or resins
- Lock 116 is configured to selectably engage the upper support 102 to constrain axial motion of the upper support 102.
- the locking assembly 104 further includes a raised surface 124 in the passage. Lock 116 may be implemented using various fasteners or biasing mechanisms.
- the lock 116' may be a translational member 117 configured to translate into the passage 115 against the upper support 102 in response to tightening of threaded bolts 120 into corresponding threaded channels (not shown) in the body 114'.
- the locking assembly 104' further includes a raised surface 126 in the passage 115 opposite the translational member 117, implemented as a ledge (i.e., a flat surface against which the upper support 102 is held upon engaging the lock 116'.
- Other embodiments of lock 116, 116' may employ corresponding nuts or the like, use clasps or other fasteners, or operate using rotational versus translational motion. Any type of fastener may be used to engage the lock 116, 116'.
- the electrical system is routed through the lower and upper supports and provides power to the attached light fixture 122.
- Embodiments of the present disclosure may also include wiring 112 interior to the upper and lower support members and the guide member.
- Guide member 108 may be implemented as fluid-tight electrical conduit or similar fluid-tight tubular. Additionally or alternatively to guide member 108, wiring chamber 160 may be interior to the lower support 106, as described below with reference to FIG. 6 .
- FIGS. 5A-5D illustrate a base in accordance with embodiments of the present disclosure.
- Base 130 includes a channel 140 between the first end of the base 132 and a second end of the base 134.
- Base 130 is configured for coupling with fluid-tight tubular (e.g., electrical conduit) and the lower support 106 at their corresponding ends opposite the locking assembly 104.
- fluid-tight tubular e.g., electrical conduit
- Threaded connections 144 and 146 enable sealing engagement with the conduit and the lower support 106, respectively.
- base 130 is configured to isolate the interior of the fluid-tight electrical conduit from the annular space 109 between the lower support 106 and the guide member 108.
- Threaded connection 142 at the second end 134 enables sealing engagement with interior of junction box 150.
- Weep holes 136 allow condensation or other moisture to drain from the annular space 109.
- wiring chamber 160 may comprise electrical conduit or the like, but may not be necessary for guiding biasing member 110 or upper support 102.
- Wiring chamber may include an adaptor 162.
- the adaptor 162 and the wiring chamber 160 (or guide member 108) may be coupled through threaded engagement.
- Wiring seal 164 may be used to prevent ingress of moisture into wiring chamber 160 (or guide member 108).
- Wire 112 includes an elastically coiled portion 166, which is configured to conform to a length of a portion of the upper support above the locking mechanism. The elastically coiled portion 166 is configured such that, when the upper support 102 is lowered, the portion 166 will re-coil, thus preventing wiring 112 from bunching along the interior surface of the wiring chamber 160 (or guide member 108).
- the light fixture 122 is connected to the upper support 102.
- the illumination source of the light fixture 122 is powered through a connection to the electrical system, comprising a power source and wiring 112.
- the power source can be externally supplied or provided in a base, which may act as a support for the first pole.
- the wire is protected within the supports. More specifically, the wire is housed in the guide member or wiring chamber of the lower support and the interior chamber of the upper support. This positioning separates the wire from the spring assist system (e.g., biasing member 110).
- the provision of a separate housing for the wiring 112 is prevents the wire from interacting with or becoming damaged by the spring assist.
- the sealed conduit of the guide member or wiring chamber protects the wire from moisture, which can also be problematic.
- FIGS. 7A-7L illustrate various modes of use including wall mounting and spring mounting. As will be apparent, various means of mounting the pole support system described above will occur to those of skill in the art.
- FIG. 8 illustrates a pole support system for industrial lighting in accordance with embodiments of the present disclosure.
- Pole support system 800 comprises an upper support 806, a telescoping lower support 802 which retracts into the upper support 806 via the locking assembly. It is readily apparent that this configuration will have different associated advantages and disadvantages than the configurations above, but will operate in a similar manner by the telescoping support in conjunction with the spring assist.
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- General Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201361908540P | 2013-11-25 | 2013-11-25 | |
US14/175,666 US9732949B2 (en) | 2013-11-25 | 2014-02-07 | Industrial lighting support system |
US201461939215P | 2014-02-12 | 2014-02-12 | |
PCT/US2014/067194 WO2015077732A1 (en) | 2013-11-25 | 2014-11-24 | Industrial lighting support system |
Publications (3)
Publication Number | Publication Date |
---|---|
EP3074579A1 EP3074579A1 (en) | 2016-10-05 |
EP3074579A4 EP3074579A4 (en) | 2017-10-25 |
EP3074579B1 true EP3074579B1 (en) | 2020-09-16 |
Family
ID=56101814
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14863679.8A Active EP3074579B1 (en) | 2013-11-25 | 2014-11-24 | Pole support system |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP3074579B1 (zh) |
CN (1) | CN106414872B (zh) |
CA (1) | CA2931712C (zh) |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2490125A (en) * | 1945-04-13 | 1949-12-06 | Wilmot Castle Co | Adjustable lamp support |
US2708493A (en) * | 1949-07-23 | 1955-05-17 | Thomas Mold & Die Co | Portable antenna mast |
DE3434517A1 (de) * | 1984-09-20 | 1986-03-27 | Flammex Verschleißschutz- u. Instandhaltungs GmbH, 6056 Heusenstamm | Mobiler teleskopmast |
DE202006019627U1 (de) * | 2006-12-30 | 2007-03-22 | Lumpp, Hannelore | Teleskop-Rohr |
WO2008126340A1 (en) * | 2007-08-01 | 2008-10-23 | Light Boy Co., Ltd. | Telescopic supporting column and floodlight using the same |
CN201944559U (zh) * | 2011-01-02 | 2011-08-24 | 刘梦阳 | 便携式无绳无影灯 |
-
2014
- 2014-11-24 CA CA2931712A patent/CA2931712C/en active Active
- 2014-11-24 CN CN201480073906.4A patent/CN106414872B/zh active Active
- 2014-11-24 EP EP14863679.8A patent/EP3074579B1/en active Active
Non-Patent Citations (1)
Title |
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None * |
Also Published As
Publication number | Publication date |
---|---|
CN106414872A (zh) | 2017-02-15 |
CN106414872B (zh) | 2020-07-03 |
CA2931712C (en) | 2022-03-22 |
EP3074579A4 (en) | 2017-10-25 |
EP3074579A1 (en) | 2016-10-05 |
CA2931712A1 (en) | 2015-05-28 |
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