US20210355695A1 - Folding hand rail and walkway - Google Patents
Folding hand rail and walkway Download PDFInfo
- Publication number
- US20210355695A1 US20210355695A1 US16/876,481 US202016876481A US2021355695A1 US 20210355695 A1 US20210355695 A1 US 20210355695A1 US 202016876481 A US202016876481 A US 202016876481A US 2021355695 A1 US2021355695 A1 US 2021355695A1
- Authority
- US
- United States
- Prior art keywords
- walkway
- dust collector
- set forth
- support
- folding
- 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.)
- Abandoned
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G5/00—Component parts or accessories for scaffolds
- E04G5/14—Railings
- E04G5/142—Railings extensible or telescopic
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
- E04F11/18—Balustrades; Handrails
- E04F11/1865—Collapsible or portable balustrades
Definitions
- This device relates to hand rails that fold when not in use to provide safety, support and access for user walkways associated with mobile industrial equipment.
- Prior art devices of this type provide for a variety of upstanding hand rails, typically on staircases that collapse when not in use. See for example, U.S. Pat. Nos. 3,401,918, 4,006,564 and 4,014,486.
- U.S. Pat. No. 3,401,918 claims a foldable hand rail for telescopically extending rails pivoted to remove support posts on a stair.
- U.S. Pat. No. 4,006,564 is directed to a foldable hand rail and seating structure affording rail folding on a bleacher-like seating structure that can be opened or collapsed when not in use.
- An extensible access walkway for mobile industrial equipment with transportation height limits having multiple folding rail and post sections.
- Each rail and post section have multiple pivot post release and locking assemblies allowing for segmented folding from the walkway.
- a walkway portion is slidably disposed over another walkway for cantilever extension and retraction, allowing access to a service structure.
- FIG. 1 is a perspective view of the folding hand rail walkway assembly on a mobile dust collector.
- FIG. 2 is a perspective view of the walkway and hand rail independently.
- FIG. 3 is a perspective view of an extending walkway and hand rail portion independently.
- FIG. 4 is a top plan view on lines 4 - 4 of FIG. 2 of the drawings.
- FIG. 5 is an enlarged side elevational view of a walkway support wheel and beam assembly.
- FIG. 6 is a front elevational view thereof.
- FIG. 7 is a perspective view of the walkway and hand rail in folded transport position.
- FIG. 8 is a top plan view of the walkway and hand rail of the invention in folded position.
- FIG. 9 is an enlarged perspective view of the post and pivot locking assembly in folded position.
- FIG. 10 is an enlarged perspective view of the post and pivot locking assembly in upright locked post use position.
- a walkway folding hand rail assembly 10 of the invention can be seen positioned on industrial mobile continuous dust collector equipment 11 for dry bulk solids.
- An integrated transportation trailer 12 provides a mobile support platform 13 with wheel and axle assemblies 14 .
- a trailer hitch assembly 15 is provided with oppositely disposed deployable trailer frame stabilizer 16 , all which are well-known within the art.
- the continuous dust collection equipment 11 is mounted to and integral with the transportation trailer 12 .
- the walkway and folding hand rail assembly 10 is mounted above the dust collector equipment having a walkway 17 and multiple railing and support beams 18 with an access stair assembly 19 extending from one end thereof.
- the dust collection equipment 11 has a fixed inlet hose connection and piping assembly 21 , again well-known within the dust collection art.
- the walkway and hand rail assembly 10 has a main section 22 from which an overlying extending walkway and rail section 23 is movably positioned and deployed, as best seen in FIGS. 2,3 and 4 of the drawings.
- the main section 22 has a pair of spaced parallel support beams 24 A, 24 B with interconnecting walking floor panels 25 secured thereto, and hand rail section 22 A.
- Multiple wheel and bearing support assemblies 26 are mounted in a longitudinally space relation on the support frame beams 24 A, 24 B.
- a secondary walkway and hand rail section 27 extends at right angles from the end of the main section 22 forming a L-shaped walkway configuration, best seen in FIGS. 2 and 4 of the drawings.
- the movable walkway and hand rail assembly section 23 has a pair of space parallel support channel beams 28 A, 28 B, on which is secured a continuous rectangular walkway floor panel 29 .
- a corresponding pair of folding hand rail assemblies 30 A, 30 B are pivotally secured to the top edge of the support beam channels 28 A, 28 B.
- each of the support channels 28 A, 28 B has a wheel stop 31 at its respective end limiting through a predetermined sliding cantilever deployment from over the main section 22 , indicated by broken line deployment arrows in FIGS. 2 and 4 of the drawings.
- each of the respective hand rail assemblies have multiple pivot pin lock assemblies 32 corresponding to the hand rail post 33 of the sections in vertical upright use position.
- the pivot pin lock assemblies 32 best seen in FIGS. 9 and 10 of the drawings, have a pair of spaced aperture lugs 34 with a pivot pin 35 extending therethrough an aligned aperture in the respective post ends 33 and the support lugs 34 defining a pivot configuration therebetween.
- a L-shaped locking pin 36 is slidably positioned in a sleeve 37 on each post and aligned with for registration a pin retainment sleeve 38 on the respective walkway support beams.
- a similar aperture lug pivot pin post locking assembly 39 is mounted on the outside surface of the respective parallel space support beams 24 A, 24 B of the walkway sections 22 , 27 , in the same manner each allowing the respective pivoted hand rail post assemblies to fold “pivot” flat, as seen graphically in FIGS. 7 and 8 of the drawings. It is important to note that the hand rail folding sequence requires that the movable walkway section 23 first be retracted back over the main section 22 before beginning the folding sequence. The hand rail assemblies are folded sequentially outward as indicated by fold directional dotted arrows A in FIG. 2 of the drawings.
- the set of access stairs 19 can be seen having fixed oppositely disposed hand rails 40 with a pair of upper hand rail extensions 42 A, 42 B being foldable.
- Each of the hand rail sections 41 A, 41 B have a respective pivot pin and locking L-shaped pin assemblies allowing for respective oppositely disposed rail sections to be released and pivoted downward as indicated by the broken arrows into transport position, thereby maintaining the low profile height of the mobile continuous dust collector equipment 11 on its mobile support and transport platform 13 configuration with the hose support gantries shown in retracted position in broken lines.
- the multiple hand rail assemblies of the multiple sections are indicated in collapsed folded position in FIG. 8 of the drawings within containment areas 43 and 44 thus providing an overall low profile configuration for the transport of the mobile dust collector equipment 11 , defined by its mobile support platform 13 on its transportation trailer 12 , as herein and before described.
Abstract
An integrated hand rail structure which is foldable from a user engagement upright position into a flat transport position on mobile industrial equipment. The hand rail is supported on a walkway structure, including an extensible section having rail and post which are pivotally attached thereto. Selective release and locking pin assemblies provide for hand rail locking in upright user position and releasable for a folding flat transport position.
Description
- This device relates to hand rails that fold when not in use to provide safety, support and access for user walkways associated with mobile industrial equipment.
- Prior art devices of this type provide for a variety of upstanding hand rails, typically on staircases that collapse when not in use. See for example, U.S. Pat. Nos. 3,401,918, 4,006,564 and 4,014,486.
- U.S. Pat. No. 3,401,918 claims a foldable hand rail for telescopically extending rails pivoted to remove support posts on a stair.
- U.S. Pat. No. 4,006,564 is directed to a foldable hand rail and seating structure affording rail folding on a bleacher-like seating structure that can be opened or collapsed when not in use.
- An extensible access walkway for mobile industrial equipment with transportation height limits, having multiple folding rail and post sections. Each rail and post section have multiple pivot post release and locking assemblies allowing for segmented folding from the walkway. A walkway portion is slidably disposed over another walkway for cantilever extension and retraction, allowing access to a service structure.
-
FIG. 1 is a perspective view of the folding hand rail walkway assembly on a mobile dust collector. -
FIG. 2 is a perspective view of the walkway and hand rail independently. -
FIG. 3 is a perspective view of an extending walkway and hand rail portion independently. -
FIG. 4 is a top plan view on lines 4-4 ofFIG. 2 of the drawings. -
FIG. 5 is an enlarged side elevational view of a walkway support wheel and beam assembly. -
FIG. 6 is a front elevational view thereof. -
FIG. 7 is a perspective view of the walkway and hand rail in folded transport position. -
FIG. 8 is a top plan view of the walkway and hand rail of the invention in folded position. -
FIG. 9 is an enlarged perspective view of the post and pivot locking assembly in folded position. -
FIG. 10 is an enlarged perspective view of the post and pivot locking assembly in upright locked post use position. - Referring to
FIG. 1 of the drawings, a walkway foldinghand rail assembly 10 of the invention can be seen positioned on industrial mobile continuous dust collector equipment 11 for dry bulk solids. An integratedtransportation trailer 12 provides amobile support platform 13 with wheel andaxle assemblies 14. Atrailer hitch assembly 15 is provided with oppositely disposed deployable trailer frame stabilizer 16, all which are well-known within the art. - In this example chose for illustration, the continuous dust collection equipment 11 is mounted to and integral with the
transportation trailer 12. The walkway and foldinghand rail assembly 10 is mounted above the dust collector equipment having awalkway 17 and multiple railing andsupport beams 18 with anaccess stair assembly 19 extending from one end thereof. - A pair of vertically extensible
hose support gantries - The dust collection equipment 11 has a fixed inlet hose connection and
piping assembly 21, again well-known within the dust collection art. - The walkway and
hand rail assembly 10 has amain section 22 from which an overlying extending walkway andrail section 23 is movably positioned and deployed, as best seen inFIGS. 2,3 and 4 of the drawings. - The
main section 22 has a pair of spacedparallel support beams walking floor panels 25 secured thereto, andhand rail section 22A. - Multiple wheel and
bearing support assemblies 26 are mounted in a longitudinally space relation on thesupport frame beams - A secondary walkway and
hand rail section 27 extends at right angles from the end of themain section 22 forming a L-shaped walkway configuration, best seen inFIGS. 2 and 4 of the drawings. - The movable walkway and hand
rail assembly section 23, best seen inFIG. 3 of the drawings, has a pair of space parallelsupport channel beams walkway floor panel 29. A corresponding pair of foldinghand rail assemblies support beam channels - The extending deployable walkway
hand rail section 23 support channel beams are therefore registerably positioned on the corresponding wheel andbearing assemblies 26, as seen inFIGS. 2 and 5 of the drawings, providing movable orientation thereto. It will be noted that each of thesupport channels wheel stop 31 at its respective end limiting through a predetermined sliding cantilever deployment from over themain section 22, indicated by broken line deployment arrows inFIGS. 2 and 4 of the drawings. - It will be seen that each of the respective hand rail assemblies have multiple pivot
pin lock assemblies 32 corresponding to thehand rail post 33 of the sections in vertical upright use position. Accordingly, the pivot pin lock assemblies 32, best seen inFIGS. 9 and 10 of the drawings, have a pair of spacedaperture lugs 34 with apivot pin 35 extending therethrough an aligned aperture in therespective post ends 33 and thesupport lugs 34 defining a pivot configuration therebetween. A L-shaped locking pin 36 is slidably positioned in asleeve 37 on each post and aligned with for registration apin retainment sleeve 38 on the respective walkway support beams. - A similar aperture lug pivot pin
post locking assembly 39 is mounted on the outside surface of the respective parallelspace support beams walkway sections FIGS. 7 and 8 of the drawings. It is important to note that the hand rail folding sequence requires that themovable walkway section 23 first be retracted back over themain section 22 before beginning the folding sequence. The hand rail assemblies are folded sequentially outward as indicated by fold directional dotted arrows A inFIG. 2 of the drawings. - Next the
movable section 23 hand rails positions are indicated by B when folded. Themain walkway section 22 now defines a low profile folded flat hand rail profile, as seen inFIGS. 7 and 8 of the drawings. It will thus be evident from the above description that as noted, the respective support gantries will have been retracted in to transport position as indicated by broken lines and arrows. - Referring back to
FIG. 1 of the drawings, the set ofaccess stairs 19 can be seen having fixed oppositely disposedhand rails 40 with a pair of upperhand rail extensions 42A, 42B being foldable. - Each of the hand rail sections 41A, 41B have a respective pivot pin and locking L-shaped pin assemblies allowing for respective oppositely disposed rail sections to be released and pivoted downward as indicated by the broken arrows into transport position, thereby maintaining the low profile height of the mobile continuous dust collector equipment 11 on its mobile support and
transport platform 13 configuration with the hose support gantries shown in retracted position in broken lines. - The multiple hand rail assemblies of the multiple sections are indicated in collapsed folded position in
FIG. 8 of the drawings withincontainment areas mobile support platform 13 on itstransportation trailer 12, as herein and before described. - It will thus be seen that a new and novel walkway and folding
hand rail assembly 10 for mobile equipment applications has been illustrated and described. It will be apparent to those skilled in the art that various changes and modifications may be made thereto without departing from the spirit of the invention. Therefore,
Claims (10)
1. A walkway folding handrail system for mobile continuous dust collector equipment comprising,
first and second walkway sections mounted above said dust collector equipment,
a movable walkway section overlapping and extending from said second walkway section,
folding handrail assemblies pivotally secured to said first, second and movable walkway sections.
2. The walkway and folding handrail system for mobile continuous dust collector equipment set forth in claim 1 wherein said second walkway section extends at right angles from said first walkway sections forming an L-shaped walkway configuration.
3. The walkway and folding handrail system for mobile continuous dust collector equipment set forth in claim 1 wherein said secondary walkway section has parallel support beams, walking floor panels extending between said beams and a pair of wheel and beam assemblies fixed within said respective support beams.
4. The walkway and folding handrail system for mobile continuous dust collector equipment set forth in claim 1 wherein said movable walkway section has oppositely disposed parallel support beam channels slidably disposed on said secondary walkway section.
5. A walkway and folding handrail system for mobile continuous dust collector equipment set forth in claim 1 wherein said folding handrail assemblies comprise,
pairs of upstanding handrail assemblies pivotally secured to respective walkway support sections along their respective spaced parallel support beams on said walkways.
6. The walkway and folding handrail system for mobile continuous dust collector equipment set forth in claim 1 wherein said mobile continuous dust collector equipment comprises, a fixed material inlet hose, hose support gantries for equipment access support and an integrated transportation trailer with a support equipment platform thereon.
7. The walking and folding handrail system for mobile continuous dust collector set forth in claim 1 wherein an access stair extends from said free end of said first walking section.
8. The walking and folding handrail system set forth in claim 5 wherein said pairs of folding handrail assemblies extend in oppositely disposed relation to one another and outwardly from said walking support beams when said folding flat therefrom.
9. The walking and folding handrail system set forth in claim 5 wherein said pairs of pivoted handrail assemblies overlie one another when in folded flat position.
10. The walking and folding handrail system set forth in claim 5 wherein said pairs of handrail assemblies pivotally secure to respective support section parallel spaced support beams further comprise,
pivot pin lock assemblies registerable in aligned pin retainment sleeves on said respective walkway support beams.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US16/876,481 US20210355695A1 (en) | 2020-05-18 | 2020-05-18 | Folding hand rail and walkway |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US16/876,481 US20210355695A1 (en) | 2020-05-18 | 2020-05-18 | Folding hand rail and walkway |
Publications (1)
Publication Number | Publication Date |
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US20210355695A1 true US20210355695A1 (en) | 2021-11-18 |
Family
ID=78513009
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US16/876,481 Abandoned US20210355695A1 (en) | 2020-05-18 | 2020-05-18 | Folding hand rail and walkway |
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US (1) | US20210355695A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20210131184A1 (en) * | 2017-08-30 | 2021-05-06 | Korea Institute Of Civil Engineering And Building Technology | Foldable balcony balustrade-combined fire/disaster evacuation facility |
US20210139303A1 (en) * | 2019-11-07 | 2021-05-13 | Oshkosh Corporation | Foldable rail assembly |
-
2020
- 2020-05-18 US US16/876,481 patent/US20210355695A1/en not_active Abandoned
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20210131184A1 (en) * | 2017-08-30 | 2021-05-06 | Korea Institute Of Civil Engineering And Building Technology | Foldable balcony balustrade-combined fire/disaster evacuation facility |
US11549310B2 (en) * | 2017-08-30 | 2023-01-10 | Korea Institute Of Civil Engineering And Building Technology | Foldable balcony balustrade-combined fire/disaster evacuation facility |
US20210139303A1 (en) * | 2019-11-07 | 2021-05-13 | Oshkosh Corporation | Foldable rail assembly |
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AS | Assignment |
Owner name: ARS RECYCLING, OHIO Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:LYRAS, GUY;REEL/FRAME:052990/0479 Effective date: 20200618 |
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Free format text: DOCKETED NEW CASE - READY FOR EXAMINATION |
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STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |