US20170130470A1 - Scaffold and Method - Google Patents
Scaffold and Method Download PDFInfo
- Publication number
- US20170130470A1 US20170130470A1 US15/410,489 US201715410489A US2017130470A1 US 20170130470 A1 US20170130470 A1 US 20170130470A1 US 201715410489 A US201715410489 A US 201715410489A US 2017130470 A1 US2017130470 A1 US 2017130470A1
- Authority
- US
- United States
- Prior art keywords
- assembly
- end frame
- frame assembly
- rail
- side brace
- 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
Links
Images
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
- E04G1/00—Scaffolds primarily resting on the ground
- E04G1/28—Scaffolds primarily resting on the ground designed to provide support only at a low height
-
- 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
- E04G7/00—Connections between parts of the scaffold
- E04G7/02—Connections between parts of the scaffold with separate coupling elements
- E04G7/06—Stiff scaffolding clamps for connecting scaffold members of common shape
- E04G7/22—Stiff scaffolding clamps for connecting scaffold members of common shape for scaffold members in end-to-side relation
-
- 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
- E04G1/00—Scaffolds primarily resting on the ground
- E04G1/28—Scaffolds primarily resting on the ground designed to provide support only at a low height
- E04G1/30—Ladder scaffolds
-
- 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
-
- 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
-
- 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
- E04G1/00—Scaffolds primarily resting on the ground
- E04G1/24—Scaffolds primarily resting on the ground comprising essentially special base constructions; comprising essentially special ground-engaging parts, e.g. inclined struts, wheels
- E04G2001/242—Scaffolds movable on wheels or tracks
-
- 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
- E04G1/00—Scaffolds primarily resting on the ground
- E04G1/28—Scaffolds primarily resting on the ground designed to provide support only at a low height
- E04G1/30—Ladder scaffolds
- E04G2001/302—Ladder scaffolds with ladders supporting the platform
- E04G2001/305—The ladders being vertical and perpendicular to the platform
Definitions
- each side brace assembly has a locking pin that has a handle which has a length that extends below an associated guard on an interior side of the guard so the handle cannot be accidentally contacted, causing the pin to loosen and possibly the scaffold to come apart.
- Some portable scaffold units have locking pins that can rotate, leaving the handle portion exposed outside the envelope of the scaffold unit. When the handle portion of the locking pin is exposed, this allows the locking pin to be involuntarily disengaged.
- FIG. 1 is a detailed view of the area near a common locking pin assembly.
- the handle of the locking pin has been rotated to extend outside the envelope of the scaffold unit where it can accidentally be contacted, possibly causing disengagement.
- FIG. 6 shows a prior art solution of this problem.
- a spring and pin design for enabling the side braces to engage the end frames. They have a pin that goes through a guard, C-channel and the end frame. The pin is held in the engaged position by means of a spring. The spring is retained between the guard and a nut that is threaded onto the pin. The pin is in the engaged position at all times unless actuated by the user. The pin is actuated by means of a disk that is connected to the retaining nut. The user places their palm against the guard and places their fingers the nut side of the disk. They pull the disk towards their paint until the pin disengages.
- This design has all moving parts within the envelope of the scaffold.
- FIG. 7 shows another prior art solution of the aforementioned problem.
- a spring and pin design is used for enabling the side braces to engage the end frames. They have a pin that goes through a piece of angle, square tubing and a C-channel and the end frame. The pin is held in the engaged position by means of a spring. The spring is retained between the piece of angle and the square tubing. The pin is connected to the spring by means of a roll pin. The pin is actuated by means of a handle at one end. The pin is in the engaged position at all times unless actuated by the user. The user pulls the handle away from the end frame to disengage. The handle of the pin is free to rotate outside the envelope of the scaffold unless the user locks it in place. The handle is locked in place by pushing the handle towards the end frame and hooking it onto the piece of angle. This design locks all moving parts from being able to rotate outside the envelope of the scaffold.
- the present invention involves a new locking pin design that will prevent the handle portion from rotating outside of the envelope of the scaffold.
- the present invention pertains to a scaffold.
- the scaffold comprises a first end frame assembly.
- the scaffold comprises a second end frame assembly.
- the scaffold comprises a first side brace assembly supported by the first end frame assembly and the second end frame assembly.
- the scaffold comprises a second side brace assembly supported by the first end frame assembly and the second end frame assembly.
- Each end frame assembly has a first rail with holes and a caster assembly and a second rail with holes and a caster assembly, and a horizontal that is attached to each rail.
- Each side brace assembly has a locking pin in proximity to each end which engages with hole in a respective rail, and an associated guard disposed about each pin.
- Each locking pin has a handle which has a length that extends below the associated guard on an interior side of the guard.
- FIG. 1 shows a prior art scaffold and a locking pin.
- FIG. 2 shows a scaffold of the present invention.
- FIG. 3 shows a locking pin guard relationship of the present invention.
- FIG. 6 shows a prior art solution to the problem the present invention also solves.
- the scaffold comprises a first end frame assembly 2 a.
- the scaffold comprises a second end frame assembly 2 b.
- the scaffold comprises a first side brace assembly 1 a supported by the first end frame assembly 2 a and the second end frame assembly 2 b.
- the scaffold comprises a second side brace assembly 1 b supported by the first end frame assembly 2 a and the second end frame assembly 2 b.
- Each end frame assembly has a first rail 19 with holes 17 and a caster assembly 23 and a second rail 21 with holes 17 and a caster assembly 23 and a horizontal 15 that is attached to each rail.
- Each side brace assembly has a locking pin 3 in proximity to each end which engages with a hole 17 in a respective rail, and an associated guard 8 disposed about each pin.
- Each locking pin 3 has a handle which has a length that extends below the associated guard 8 on an interior side of the guard 8 .
- the present invention pertains to a method for a scaffold.
- the method comprises the steps of placing a locking pin 3 in proximity to either end of a first side brace assembly 1 a into a hole 17 of a first rail 19 of a first end frame assembly 2 a and a hole 17 of a first rail 19 of a second end assembly, respectively, so the first end frame assembly 2 a and the second end frame assembly 2 b supports the first side brace assembly 1 a.
- the placing step can include the step of placing the locking pin 3 disposed in a bracket 25 in proximity to each end of the first side brace assembly 1 a into the hole 17 of the first rail 19 of the first end frame assembly 2 a and the hole 17 of the first rail 19 of the second end assembly, respectively, so the first end frame assembly 2 a and the second end frame assembly 2 b supports the first side brace assembly 1 a.
- FIG. 2 a simplified steel rolling scaffold is shown in FIG. 2 .
- FIG. 3 is a detailed view of the area near the locking pin 3 . Notice the length of the handle has been extended below the guard 8 .
- the locking pin 3 is assembled on the interior side of the guard 8 so that the handle of the locking pin cannot rotate beyond the guard 8 .
Abstract
Description
- This is a continuation of U.S. patent application Ser. No. 15/195,611 filed on Jun. 28, 2016, now U.S. Pat. No. 9,551,160, which is a divisional of patent application Ser. No. 12/660,417 filed on Feb. 26, 2010, now U.S. Pat. No. 9,388,588, both of which are incorporated by reference herein.
- The present invention is related to a scaffold where each side brace assembly has a locking pin that has a handle which has a length that extends below an associated guard on an interior side of the guard so the handle cannot be accidentally contacted, causing the pin to loosen and possibly the scaffold to come apart. (As used herein, references to the “present invention” or “invention” relate to exemplary embodiments and not necessarily to every embodiment encompassed by the appended claims.)
- This section is intended to introduce the reader to various aspects of the art that may be related to various aspects of the present invention. The following discussion is intended to provide information to facilitate a better understanding of the present invention. Accordingly, it should be understood that statements in the following discussion are to be read in this light, and not as admissions of prior art.
- Some portable scaffold units have locking pins that can rotate, leaving the handle portion exposed outside the envelope of the scaffold unit. When the handle portion of the locking pin is exposed, this allows the locking pin to be involuntarily disengaged.
-
FIG. 1 is a detailed view of the area near a common locking pin assembly. The handle of the locking pin has been rotated to extend outside the envelope of the scaffold unit where it can accidentally be contacted, possibly causing disengagement. -
FIG. 6 shows a prior art solution of this problem. A spring and pin design for enabling the side braces to engage the end frames. They have a pin that goes through a guard, C-channel and the end frame. The pin is held in the engaged position by means of a spring. The spring is retained between the guard and a nut that is threaded onto the pin. The pin is in the engaged position at all times unless actuated by the user. The pin is actuated by means of a disk that is connected to the retaining nut. The user places their palm against the guard and places their fingers the nut side of the disk. They pull the disk towards their paint until the pin disengages. This design has all moving parts within the envelope of the scaffold. -
FIG. 7 shows another prior art solution of the aforementioned problem. A spring and pin design is used for enabling the side braces to engage the end frames. They have a pin that goes through a piece of angle, square tubing and a C-channel and the end frame. The pin is held in the engaged position by means of a spring. The spring is retained between the piece of angle and the square tubing. The pin is connected to the spring by means of a roll pin. The pin is actuated by means of a handle at one end. The pin is in the engaged position at all times unless actuated by the user. The user pulls the handle away from the end frame to disengage. The handle of the pin is free to rotate outside the envelope of the scaffold unless the user locks it in place. The handle is locked in place by pushing the handle towards the end frame and hooking it onto the piece of angle. This design locks all moving parts from being able to rotate outside the envelope of the scaffold. - The present invention involves a new locking pin design that will prevent the handle portion from rotating outside of the envelope of the scaffold.
- The present invention pertains to a scaffold. The scaffold comprises a first end frame assembly. The scaffold comprises a second end frame assembly. The scaffold comprises a first side brace assembly supported by the first end frame assembly and the second end frame assembly. The scaffold comprises a second side brace assembly supported by the first end frame assembly and the second end frame assembly. Each end frame assembly has a first rail with holes and a caster assembly and a second rail with holes and a caster assembly, and a horizontal that is attached to each rail. Each side brace assembly has a locking pin in proximity to each end which engages with hole in a respective rail, and an associated guard disposed about each pin. Each locking pin has a handle which has a length that extends below the associated guard on an interior side of the guard.
- In the accompanying drawings, the preferred embodiment of the invention and preferred methods of practicing the invention are illustrated in which:
-
FIG. 1 shows a prior art scaffold and a locking pin. -
FIG. 2 shows a scaffold of the present invention. -
FIG. 3 shows a locking pin guard relationship of the present invention. -
FIG. 4 shows an end frame assembly. -
FIG. 6 shows a prior art solution to the problem the present invention also solves. -
FIG. 7 shows a prior art solution to the problem the present invention also solves. - Referring now to the drawings wherein like reference numerals refer to similar or identical parts throughout the several views, and more specifically to
FIGS. 2-5 thereof, there is shown a scaffold. The scaffold comprises a firstend frame assembly 2 a. The scaffold comprises a secondend frame assembly 2 b. The scaffold comprises a first side brace assembly 1 a supported by the firstend frame assembly 2 a and the secondend frame assembly 2 b. The scaffold comprises a secondside brace assembly 1 b supported by the firstend frame assembly 2 a and the secondend frame assembly 2 b. Each end frame assembly has afirst rail 19 with holes 17 and a caster assembly 23 and asecond rail 21 with holes 17 and a caster assembly 23 and a horizontal 15 that is attached to each rail. Each side brace assembly has a locking pin 3 in proximity to each end which engages with a hole 17 in a respective rail, and an associatedguard 8 disposed about each pin. Each locking pin 3 has a handle which has a length that extends below the associatedguard 8 on an interior side of theguard 8. - The scaffold may include
latch pins 5 which hold a deck 4 onto the side braces. Each side brace may have abracket 25 in proximity to each end through which the respective pin extends. Each side brace assembly may have achannel 27 at either end which contacts the respective rail. Each side brace assembly may have aknee brace 29 at either end that extends from thechannel 27. - The present invention pertains to a method for a scaffold. The method comprises the steps of placing a locking pin 3 in proximity to either end of a first side brace assembly 1 a into a hole 17 of a
first rail 19 of a firstend frame assembly 2 a and a hole 17 of afirst rail 19 of a second end assembly, respectively, so the firstend frame assembly 2 a and the secondend frame assembly 2 b supports the first side brace assembly 1 a. There is the step of positioning a handle of the pin on either end of the first side brace assembly 1 a having a length which extends below aguard 8 in proximity to either end of the first side brace assembly 1 a, respectively, on an interior side of theguard 8. There is the step of placing a locking pin 3 in proximity to either end of a secondside brace assembly 1 b into a hole 17 of asecond rail 21 of the firstend frame assembly 2 a and a hole 17 of asecond rail 21 of the second end assembly, respectively, so the firstend frame assembly 2 a and the secondend frame assembly 2 b supports the secondside brace assembly 1 b. There is the step of positioning a handle of the pin on either end of the secondside brace assembly 1 b having a length which extends below aguard 8 in proximity to either end of the secondside brace assembly 1 b, respectively, on an interior side of theguard 8. - The placing step can include the step of placing the locking pin 3 disposed in a
bracket 25 in proximity to each end of the first side brace assembly 1 a into the hole 17 of thefirst rail 19 of the firstend frame assembly 2 a and the hole 17 of thefirst rail 19 of the second end assembly, respectively, so the firstend frame assembly 2 a and the secondend frame assembly 2 b supports the first side brace assembly 1 a. - In the operation of the invention, a simplified steel rolling scaffold is shown in
FIG. 2 . There are two side,brace assemblies 1 a, 1 b connected to twoend frame assemblies -
FIG. 3 is a detailed view of the area near the locking pin 3. Notice the length of the handle has been extended below theguard 8. The locking pin 3 is assembled on the interior side of theguard 8 so that the handle of the locking pin cannot rotate beyond theguard 8. - Although the invention has been described in detail in the foregoing embodiments for the purpose of illustration, it is to be understood that such detail is solely for that purpose that variations can be made therein by those skilled in the art without departing from the spirit and scope of the invention except as it may be described by the following claims.
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15/410,489 US20170130470A1 (en) | 2010-02-26 | 2017-01-19 | Scaffold and Method |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/660,417 US9388588B2 (en) | 2010-02-26 | 2010-02-26 | Scaffold and method |
US15/195,611 US9551160B2 (en) | 2010-02-26 | 2016-06-28 | Scaffold and method |
US15/410,489 US20170130470A1 (en) | 2010-02-26 | 2017-01-19 | Scaffold and Method |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US15/195,611 Continuation US9551160B2 (en) | 2010-02-26 | 2016-06-28 | Scaffold and method |
Publications (1)
Publication Number | Publication Date |
---|---|
US20170130470A1 true US20170130470A1 (en) | 2017-05-11 |
Family
ID=44502266
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/660,417 Active US9388588B2 (en) | 2010-02-26 | 2010-02-26 | Scaffold and method |
US15/195,611 Active US9551160B2 (en) | 2010-02-26 | 2016-06-28 | Scaffold and method |
US15/410,489 Abandoned US20170130470A1 (en) | 2010-02-26 | 2017-01-19 | Scaffold and Method |
Family Applications Before (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/660,417 Active US9388588B2 (en) | 2010-02-26 | 2010-02-26 | Scaffold and method |
US15/195,611 Active US9551160B2 (en) | 2010-02-26 | 2016-06-28 | Scaffold and method |
Country Status (2)
Country | Link |
---|---|
US (3) | US9388588B2 (en) |
CA (1) | CA2732054C (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5897935B2 (en) * | 2012-03-02 | 2016-04-06 | アルインコ株式会社 | Telescopic leg locking device for workbench |
MX2021007206A (en) * | 2018-12-17 | 2021-12-15 | Terex South Dakota Inc | Access deck assembly and handle assembly for an aerial work platform of a vehicle. |
US20210062580A1 (en) * | 2019-08-30 | 2021-03-04 | Grady F. Smith | Stabilization of Multi-Purpose Scaffold |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4262774A (en) * | 1979-11-26 | 1981-04-21 | Roman Chez | Adjustable scaffold |
US4793438A (en) * | 1986-09-16 | 1988-12-27 | Perry Eugene D | Scaffold latch means |
US5069309A (en) * | 1989-09-28 | 1991-12-03 | Emerson Electric Co. | Rolling tower scaffold and method and tooling apparatus for manufacturing the same |
US5368126A (en) * | 1993-03-29 | 1994-11-29 | Woodward; Wilbur W. | Adjustable work platform |
US5390761A (en) * | 1993-09-21 | 1995-02-21 | Perry; Eugene D. | Latch for scaffolding |
US5988317A (en) * | 1998-09-21 | 1999-11-23 | Riding; Gary | Modular hinged scaffold unit |
US20080310910A1 (en) * | 2007-06-12 | 2008-12-18 | Chick Mark C | Scaffold securement device |
US20040188176A1 (en) * | 2001-01-19 | 2004-09-30 | Wyse Steven J. | Utility scaffolding having safety features |
US6471003B2 (en) * | 2001-01-19 | 2002-10-29 | Steven J. Wyse | Utility scaffolding having safety features |
US6832666B2 (en) * | 2001-11-30 | 2004-12-21 | Bil-Jax, Inc. | Mobile utility scaffold having a platform locking and securing device |
US6823965B2 (en) * | 2001-11-30 | 2004-11-30 | Bil-Jax, Inc. | Locking and securing device |
US6863155B2 (en) * | 2002-10-15 | 2005-03-08 | Steven J. Wyse | Mobile scaffolding brake |
-
2010
- 2010-02-26 US US12/660,417 patent/US9388588B2/en active Active
-
2011
- 2011-02-22 CA CA2732054A patent/CA2732054C/en active Active
-
2016
- 2016-06-28 US US15/195,611 patent/US9551160B2/en active Active
-
2017
- 2017-01-19 US US15/410,489 patent/US20170130470A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
US9551160B2 (en) | 2017-01-24 |
US20160305137A1 (en) | 2016-10-20 |
US20110209945A1 (en) | 2011-09-01 |
US9388588B2 (en) | 2016-07-12 |
CA2732054A1 (en) | 2011-08-26 |
CA2732054C (en) | 2017-10-31 |
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Owner name: WERNER TECHNOLOGIES, INC., PENNSYLVANIA Free format text: RELEASE OF SECURITY INTEREST IN PATENTS AT R/F 043328/0001;ASSIGNOR:JPMORGAN CHASE BANK, N.A., AS COLLATERAL AGENT;REEL/FRAME:063957/0231 Effective date: 20230609 Owner name: WERNER CO., ILLINOIS Free format text: RELEASE OF SECURITY INTEREST IN PATENTS AT R/F 043328/0001;ASSIGNOR:JPMORGAN CHASE BANK, N.A., AS COLLATERAL AGENT;REEL/FRAME:063957/0231 Effective date: 20230609 Owner name: KNAACK LLC, ILLINOIS Free format text: RELEASE OF SECURITY INTEREST IN PATENTS AT R/F 043328/0001;ASSIGNOR:JPMORGAN CHASE BANK, N.A., AS COLLATERAL AGENT;REEL/FRAME:063957/0231 Effective date: 20230609 |