CA2476943A1 - Ladder jack having fall protection - Google Patents
Ladder jack having fall protection Download PDFInfo
- Publication number
- CA2476943A1 CA2476943A1 CA 2476943 CA2476943A CA2476943A1 CA 2476943 A1 CA2476943 A1 CA 2476943A1 CA 2476943 CA2476943 CA 2476943 CA 2476943 A CA2476943 A CA 2476943A CA 2476943 A1 CA2476943 A1 CA 2476943A1
- Authority
- CA
- Canada
- Prior art keywords
- ladder
- support member
- plank
- plank support
- coupling
- 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
Classifications
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C7/00—Component parts, supporting parts, or accessories
- E06C7/18—Devices for preventing persons from falling
- E06C7/185—Devices providing a back support to a person on the ladder, e.g. cages
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C7/00—Component parts, supporting parts, or accessories
- E06C7/16—Platforms on, or for use on, ladders, e.g. liftable or lowerable platforms
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C7/00—Component parts, supporting parts, or accessories
- E06C7/18—Devices for preventing persons from falling
- E06C7/181—Additional gripping devices, e.g. handrails
- E06C7/182—Additional gripping devices, e.g. handrails situated at the top of the ladder
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ladders (AREA)
Abstract
A ladder jack having fall protection includes a ladder attachment member having an upper end, a lower end. A plank support member is pivotally mounted to the ladder attachment member. The plank support member has a pivotal connection end and a remote end. An adjustable angular brace member extends from the lower end of the ladder attachment member to engage the plank support member. The plank support member has a plurality of brace attachment positions. When an appropriate one of the brace attachment positions is selected, the angular brace member maintains the plank support member in a substantially horizontal orientation. A coupling positioned at the remote end of the plank support member. The coupling is adapted to engage a vertical support and maintain the vertical support in a substantially vertical orientation. The coupling enables provision to be made for fall protection by adding components to form a ladder jack scaffold assembly.
Description
TITLE OF THE INVENTION:
Ladder jack having fall protection FIELD OF THE INVENTION
The present invention relates to a ladder jack having fall protection.
BACKGROUND OF THE INVENTION
Ladder jacks are used to support scaffolding planks, which extend between ladders.
Each ladder jack consists of a ladder attachment member having means for engaging a ladder and a plank support member pivotally mounted to the ladder attachment member.
An angular brace member extends between the ladder attachment member and the plank support member.
The angular brace member has a plurality of attachment positions. By selecting the appropriate one of the attachment positions, the angular brace member can be positioned to maintain the plank support member in a substantially horizontal orientation.
The ability to adjust the positioning of the angular brace is necessary, as the ladder attachment member will always reflect the angle at which the ladder is resting.
The present problem with ladder jacks, is that they provide no fall protection. This lack of fall protection limits the height at which they may be used safely.
SUMMARY OF THE INVENTION
What is required is a ladder jack having fall protection.
According to a first aspect of the present invention there is provided a ladder jack 2 5 having fall protection. The ladder jack includes a ladder attachment member having an upper end, a lower end and means for engaging a ladder. A plank support member is pivotally mounted to the ladder attachment member. The plank support member has a pivotal connection end and a remote end. An adjustable angular brace member extends from the lower end of the ladder attachment member to engage the plank support member.
The plank 3 0 support member has a plurality of brace attachment positions. When an appropriate one of the brace attachment positions is selected, the angular brace member maintains the plank support member in a substantially horizontal orientation. A coupling positioned at the remote end of the plank support member. The coupling is adapted to engage a vertical support and maintain the vertical support in a substantially vertical orientation. The coupling enables provision to be made for fall protection in a ladder jack scaffold assembly, as will hereinafter be further described.
According to a second aspect of the present invention there is provided a ladder jack scaffold assembly, which includes the above described ladder jacks. The ladder jack scaffold assembly also includes a pair of vertical supports. Each of the vertical support has a coupling adapted to engage the coupling on the plank support member of one of the pair of ladder jacks. A fall prevention side rail is provided which is adapted to be secured to and extend between the vertical supports in a substantially horizontal orientation. A
pair of end rail braces are provided; each of the end rail braces having a first end adapted to be secured to one of the vertical supports and a second end adapted to be secured to a building structure. The described ladder jack scaffold assembly is capable of being assembled to provide fall protection for workers using the ladder jacks.
According to a third aspect of the present invention there is provided a method of providing fall protection on a ladder jack scaffolding assembly. A pair of ladders are positioned leaning them against a building structure in spaced apart relation.
The ladder 2 0 attachment members of each of the ladder jacks are mounted to one of the pair of ladders.
The angular brace members of each of the ladder jacks is adjusted by selecting the appropriate brace attachment position on each plank support member to maintain each plank support member in a substantially horizontal orientation. A plank is positioned so that the plank extends between a.nd is supported by the plank support members. Vertical supports are 2 5 coupled with the coupling on each plank support member of each of the ladder jacks, so that the vertical supports are maintained in a substantially vertical orientation.
A fall prevention side rail is secured to each of the vertical supports, so that the side rail extends between the vertical supports in a substantially horizontal orientation and at a height to provide fall protection. The first end of each of the end rail braces is secured to one of the vertical 3 0 supports. The second end of each of the end rail braces is secured to the building structure at a height to provide stability to each the vertical supports while concurrently providing fall protection.
BRIEF DESCRIPTION OF THE DRAWINGS
These and other features of the invention will become more apparent from the following description in which reference is made to the appended drawings, the drawings are for the purpose of illustration only and are not intended to in any way limit the scope of the invention to the particular embodiment or embodiments shown, wherein:
FIGURE 1 is a perspective view of a ladder jack having provision for fall protection in accordance with the teachings of the present invention.
FIGURE 2 is a perspective view of a ladder jack scaffolding assembly utilizing the ladder jack illustrated in FIGURE 1.
FIGURE 3 labelled as PRIOR ART is a perspective view of a ladder jack that does not have provision for fall protection.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
The preferred embodiment, a ladder jack with fall protection generally identified by reference numeral 10, will now be described with reference to FIGURES 1 through 3.
Referring to FIGURE 3, labelled as PRIOR ART, there will first be described a 2 0 prior art form of ladder jack, generally identified by reference numeral 100. Ladder jack 100 includes a ladder attachment member 12 having an upper end 14, a lower end 16 and means for engaging a ladder 18 such as a pair of spaced apart rung engaging bodies 19 on ladder attachment member 12. A plank support member 20 is pivotally mounted to ladder attachment member 12. Plank support member 20 has a pivotal connection end 22 and a 2 5 remote end 24. An adjustable angular brace member 26 extends from lower end 16 of ladder attachment member 12 to engage plank support member 20. Plank support member 20 has a plurality of brace attachment positions which are defined by a plurality of openings, or slots 28 as shown, on plank support member 20. A common channel 32 connects the bottom of each slot 28. Other openings may be used in the art. Angular brace member 26 is secured by 3 0 fasteners 30 into the selected slot 28. Once an appropriate brace attachment position is selected, angular brace member 26 maintains plank support member 20 in a substantially horizontal orientation.
Ladder jack having fall protection FIELD OF THE INVENTION
The present invention relates to a ladder jack having fall protection.
BACKGROUND OF THE INVENTION
Ladder jacks are used to support scaffolding planks, which extend between ladders.
Each ladder jack consists of a ladder attachment member having means for engaging a ladder and a plank support member pivotally mounted to the ladder attachment member.
An angular brace member extends between the ladder attachment member and the plank support member.
The angular brace member has a plurality of attachment positions. By selecting the appropriate one of the attachment positions, the angular brace member can be positioned to maintain the plank support member in a substantially horizontal orientation.
The ability to adjust the positioning of the angular brace is necessary, as the ladder attachment member will always reflect the angle at which the ladder is resting.
The present problem with ladder jacks, is that they provide no fall protection. This lack of fall protection limits the height at which they may be used safely.
SUMMARY OF THE INVENTION
What is required is a ladder jack having fall protection.
According to a first aspect of the present invention there is provided a ladder jack 2 5 having fall protection. The ladder jack includes a ladder attachment member having an upper end, a lower end and means for engaging a ladder. A plank support member is pivotally mounted to the ladder attachment member. The plank support member has a pivotal connection end and a remote end. An adjustable angular brace member extends from the lower end of the ladder attachment member to engage the plank support member.
The plank 3 0 support member has a plurality of brace attachment positions. When an appropriate one of the brace attachment positions is selected, the angular brace member maintains the plank support member in a substantially horizontal orientation. A coupling positioned at the remote end of the plank support member. The coupling is adapted to engage a vertical support and maintain the vertical support in a substantially vertical orientation. The coupling enables provision to be made for fall protection in a ladder jack scaffold assembly, as will hereinafter be further described.
According to a second aspect of the present invention there is provided a ladder jack scaffold assembly, which includes the above described ladder jacks. The ladder jack scaffold assembly also includes a pair of vertical supports. Each of the vertical support has a coupling adapted to engage the coupling on the plank support member of one of the pair of ladder jacks. A fall prevention side rail is provided which is adapted to be secured to and extend between the vertical supports in a substantially horizontal orientation. A
pair of end rail braces are provided; each of the end rail braces having a first end adapted to be secured to one of the vertical supports and a second end adapted to be secured to a building structure. The described ladder jack scaffold assembly is capable of being assembled to provide fall protection for workers using the ladder jacks.
According to a third aspect of the present invention there is provided a method of providing fall protection on a ladder jack scaffolding assembly. A pair of ladders are positioned leaning them against a building structure in spaced apart relation.
The ladder 2 0 attachment members of each of the ladder jacks are mounted to one of the pair of ladders.
The angular brace members of each of the ladder jacks is adjusted by selecting the appropriate brace attachment position on each plank support member to maintain each plank support member in a substantially horizontal orientation. A plank is positioned so that the plank extends between a.nd is supported by the plank support members. Vertical supports are 2 5 coupled with the coupling on each plank support member of each of the ladder jacks, so that the vertical supports are maintained in a substantially vertical orientation.
A fall prevention side rail is secured to each of the vertical supports, so that the side rail extends between the vertical supports in a substantially horizontal orientation and at a height to provide fall protection. The first end of each of the end rail braces is secured to one of the vertical 3 0 supports. The second end of each of the end rail braces is secured to the building structure at a height to provide stability to each the vertical supports while concurrently providing fall protection.
BRIEF DESCRIPTION OF THE DRAWINGS
These and other features of the invention will become more apparent from the following description in which reference is made to the appended drawings, the drawings are for the purpose of illustration only and are not intended to in any way limit the scope of the invention to the particular embodiment or embodiments shown, wherein:
FIGURE 1 is a perspective view of a ladder jack having provision for fall protection in accordance with the teachings of the present invention.
FIGURE 2 is a perspective view of a ladder jack scaffolding assembly utilizing the ladder jack illustrated in FIGURE 1.
FIGURE 3 labelled as PRIOR ART is a perspective view of a ladder jack that does not have provision for fall protection.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
The preferred embodiment, a ladder jack with fall protection generally identified by reference numeral 10, will now be described with reference to FIGURES 1 through 3.
Referring to FIGURE 3, labelled as PRIOR ART, there will first be described a 2 0 prior art form of ladder jack, generally identified by reference numeral 100. Ladder jack 100 includes a ladder attachment member 12 having an upper end 14, a lower end 16 and means for engaging a ladder 18 such as a pair of spaced apart rung engaging bodies 19 on ladder attachment member 12. A plank support member 20 is pivotally mounted to ladder attachment member 12. Plank support member 20 has a pivotal connection end 22 and a 2 5 remote end 24. An adjustable angular brace member 26 extends from lower end 16 of ladder attachment member 12 to engage plank support member 20. Plank support member 20 has a plurality of brace attachment positions which are defined by a plurality of openings, or slots 28 as shown, on plank support member 20. A common channel 32 connects the bottom of each slot 28. Other openings may be used in the art. Angular brace member 26 is secured by 3 0 fasteners 30 into the selected slot 28. Once an appropriate brace attachment position is selected, angular brace member 26 maintains plank support member 20 in a substantially horizontal orientation.
Referring to FIGURE 1, ladder jack 10 differs from ladder jack 100 only to the extent that a coupling 34 is positioned at remote end 24 of plank support member 20.
Coupling 34 is adapted to engage a vertical support 36 as shown in FIGURE 2 and maintain vertical support 36 in a substantially vertical orientation. Coupling 34 enables provision to be made for fall protection in a ladder jack scaffold assembly, generally identified by reference numeral 40, as will hereinafter be further described.
Referring to FIGURE 1, it will be appreciated that coupling 34 on plank support member 20 can be either a male member or a female member. We have chosen to illustrate coupling 34 on plank support member 20 as a male member.
Refernng to FIGURE 2, the other components of ladder jack scaffolding assembly are illustrated. Ladder jack scaffold assembly 40 also includes a pair of vertical supports 36.
Each vertical support 36 has a coupling 42 adapted to engage coupling 34 on plank support member 20 of ladder jack 10. A fall prevention side rail 44 is provided which is adapted to be secured to and extend between vertical supports 36 in a substantially horizontal orientation.
A pair of end rail braces 46 are provided; each end rail brace 46 having a first end 48 adapted to be secured to one of the vertical supports 36 and a second end 50 adapted to be secured to a 2 0 building structure 52. The described ladder jack scaffold assembly 40 is capable of being assembled to provide fall protection for workers using ladder jacks 10.
Referring again to FIGURE 2, there is illustrated a method of providing fall protection with the components of ladder jack scaffolding assembly 40. A pair of ladders 54 2 5 are positioned leaning them against a building structure 52 in spaced apart relation. Ladder attachment members 12 of each ladder jack 10 are mounted to the ladders 54.
The angular brace member 26 of each ladder jack 10 is adjusted by selecting the appropriate brace attachment position on each plank support member 20 to maintain each plank support member 20 in a substantially horizontal orientation. A plank 58 is positioned so that plank 58 3 0 extends between, and is supported by, plank support members 20. Coupling 42 of vertical supports 36 are coupled with coupling 34 on each plank support member 20 of each ladder jack 10, so that vertical supports 36 are maintained in a substantially vertical orientation. Fall prevention side rail 44 is secured to each vertical support 36, so that side rails 44 extend between vertical supports 36 in a substantially horizontal orientation and at a height to provide fall protection. The first end 48 of each end rail brace 46 is secured to one of the vertical supports 36. The second end 50 of each end rail brace 46 is secured to building 5 structure 52 at a height to provide stability to each vertical support 36 while concurrently providing fall protection.
In this patent document, the word "comprising" is used in its non-limiting sense to mean that items following the word are included, but items not specifically mentioned are not excluded. A reference to an element by the indefinite article "a" does not exclude the possibility that more than one of the element is present, unless the context clearly requires that there be one and only one of the elements.
It will be apparent to one skilled in the art that modifications may be made to the illustrated embodiment without departing from the spirit and scope of the invention as hereinafter defined in the Claims.
Coupling 34 is adapted to engage a vertical support 36 as shown in FIGURE 2 and maintain vertical support 36 in a substantially vertical orientation. Coupling 34 enables provision to be made for fall protection in a ladder jack scaffold assembly, generally identified by reference numeral 40, as will hereinafter be further described.
Referring to FIGURE 1, it will be appreciated that coupling 34 on plank support member 20 can be either a male member or a female member. We have chosen to illustrate coupling 34 on plank support member 20 as a male member.
Refernng to FIGURE 2, the other components of ladder jack scaffolding assembly are illustrated. Ladder jack scaffold assembly 40 also includes a pair of vertical supports 36.
Each vertical support 36 has a coupling 42 adapted to engage coupling 34 on plank support member 20 of ladder jack 10. A fall prevention side rail 44 is provided which is adapted to be secured to and extend between vertical supports 36 in a substantially horizontal orientation.
A pair of end rail braces 46 are provided; each end rail brace 46 having a first end 48 adapted to be secured to one of the vertical supports 36 and a second end 50 adapted to be secured to a 2 0 building structure 52. The described ladder jack scaffold assembly 40 is capable of being assembled to provide fall protection for workers using ladder jacks 10.
Referring again to FIGURE 2, there is illustrated a method of providing fall protection with the components of ladder jack scaffolding assembly 40. A pair of ladders 54 2 5 are positioned leaning them against a building structure 52 in spaced apart relation. Ladder attachment members 12 of each ladder jack 10 are mounted to the ladders 54.
The angular brace member 26 of each ladder jack 10 is adjusted by selecting the appropriate brace attachment position on each plank support member 20 to maintain each plank support member 20 in a substantially horizontal orientation. A plank 58 is positioned so that plank 58 3 0 extends between, and is supported by, plank support members 20. Coupling 42 of vertical supports 36 are coupled with coupling 34 on each plank support member 20 of each ladder jack 10, so that vertical supports 36 are maintained in a substantially vertical orientation. Fall prevention side rail 44 is secured to each vertical support 36, so that side rails 44 extend between vertical supports 36 in a substantially horizontal orientation and at a height to provide fall protection. The first end 48 of each end rail brace 46 is secured to one of the vertical supports 36. The second end 50 of each end rail brace 46 is secured to building 5 structure 52 at a height to provide stability to each vertical support 36 while concurrently providing fall protection.
In this patent document, the word "comprising" is used in its non-limiting sense to mean that items following the word are included, but items not specifically mentioned are not excluded. A reference to an element by the indefinite article "a" does not exclude the possibility that more than one of the element is present, unless the context clearly requires that there be one and only one of the elements.
It will be apparent to one skilled in the art that modifications may be made to the illustrated embodiment without departing from the spirit and scope of the invention as hereinafter defined in the Claims.
Claims (9)
1. A ladder jack having fall protection, comprising:
a ladder attachment member having an upper end, a lower end and means for engaging a ladder;
a plank support member pivotally mounted to the ladder attachment member, the plank support member having a pivotal connection end and a remote end;
an adjustable angular brace member which extends from the lower end of the ladder attachment member to engage the plank support member, the plank support member having a plurality of brace attachment positions such that when an appropriate one of the brace attachment positions is selected, the angular brace member maintains the plank support member in a substantially horizontal orientation; and a coupling positioned at the remote end of the plank support member, the coupling being adapted to engage a vertical support and maintain the vertical support in a substantially vertical orientation.
a ladder attachment member having an upper end, a lower end and means for engaging a ladder;
a plank support member pivotally mounted to the ladder attachment member, the plank support member having a pivotal connection end and a remote end;
an adjustable angular brace member which extends from the lower end of the ladder attachment member to engage the plank support member, the plank support member having a plurality of brace attachment positions such that when an appropriate one of the brace attachment positions is selected, the angular brace member maintains the plank support member in a substantially horizontal orientation; and a coupling positioned at the remote end of the plank support member, the coupling being adapted to engage a vertical support and maintain the vertical support in a substantially vertical orientation.
2. The ladder jack as defined in Claim 1, wherein the coupling is a male member.
3. The ladder jack as defined in Claim 1, wherein the means for engaging a ladder are a pair of spaced apart rung engaging bodies on the ladder attachment member.
4. The ladder jack as defined in Claim 1, wherein the plurality of brace attachment positions are defined by a plurality of openings on the plank support member, the angular brace member being secured by fasteners in a selected one of the plurality of openings.
5. The ladder jack as defined in Claim 4, wherein the openings are angled slots, a common channel connecting a bottom of each of the slots.
6. A ladder jack scaffold assembly, comprising:
a pair of ladder jacks, each ladder jack having:
a ladder attachment member having an upper end, a lower end and means for engaging a ladder;
a plank support member pivotally mounted to the ladder attachment member, the plank support member having a pivotal connection end and a remote end;
an adjustable angular brace member which extends from the lower end of the ladder attachment member to engage the plank support member, the plank support member having a plurality of brace attachment positions such that when an appropriate one of the brace attachment positions is selected, the angular brace member maintains the plank support member in a substantially horizontal orientation; and a coupling positioned at the remote end of the plank support member, the coupling being adapted to engage a vertical support and maintain the vertical support in a substantially vertical orientation.
a pair of vertical supports, each vertical support having a coupling adapted to engage the coupling on the plank support member of one of the pair of ladder jacks;
a fall prevention side rail adapted to be secured to and extend between the vertical supports in a substantially horizontal orientation;
a pair of end rail braces, each of the end rail braces having a first end adapted to be secured to one of the vertical supports and a second end adapted to be secured to a building structure.
a pair of ladder jacks, each ladder jack having:
a ladder attachment member having an upper end, a lower end and means for engaging a ladder;
a plank support member pivotally mounted to the ladder attachment member, the plank support member having a pivotal connection end and a remote end;
an adjustable angular brace member which extends from the lower end of the ladder attachment member to engage the plank support member, the plank support member having a plurality of brace attachment positions such that when an appropriate one of the brace attachment positions is selected, the angular brace member maintains the plank support member in a substantially horizontal orientation; and a coupling positioned at the remote end of the plank support member, the coupling being adapted to engage a vertical support and maintain the vertical support in a substantially vertical orientation.
a pair of vertical supports, each vertical support having a coupling adapted to engage the coupling on the plank support member of one of the pair of ladder jacks;
a fall prevention side rail adapted to be secured to and extend between the vertical supports in a substantially horizontal orientation;
a pair of end rail braces, each of the end rail braces having a first end adapted to be secured to one of the vertical supports and a second end adapted to be secured to a building structure.
7. The ladder jack scaffolding assembly as defined in Claim 6, wherein the coupling on the plank support member is one of a male member or a female member and the coupling on the vertical support is another of the male member or the female member.
8. The ladder jack scaffolding assembly as defined in Claim 7, wherein the coupling on the plank support member is a male member and the coupling on the vertical support a female member.
9. A method of providing fall protection on a ladder jack scaffolding assembly, comprising:
providing a pair of ladder jacks, each ladder jack having:
a ladder attachment member having an upper end, a lower end and means for engaging a ladder;
a plank support member pivotally mounted to the ladder attachment member, the plank support member having a pivotal connection end and a remote end;
an adjustable angular brace member which extends from the lower end of the ladder attachment member to engage the plank support member, the plank support member having a plurality of brace attachment positions such that when an appropriate one of the brace attachment positions is selected, the angular brace member maintains the plank support member in a substantially horizontal orientation; and a coupling positioned at the remote end of the plank support member, the coupling being adapted to engage a vertical support and maintain the vertical support in a substantially vertical orientation;
providing a pair of ladders and leaning them against a building structure in spaced apart relation;
mounting the ladder attachment members of each of the ladder jacks to one of the pair of ladders;
adjusting the angular brace members of each of the ladder jacks by selecting the appropriate brace attachment position on each plank support member to maintain each plank support member in a substantially horizontal orientation;
positioning a plank so that the plank extends between and is supported by the plank support members;
coupling vertical supports with the coupling on each plank support member of each of the ladder jacks, so that the vertical supports are maintained in a substantially vertical orientation;
securing a fall prevention side rail to each of the vertical supports so that the side rail extends between the vertical supports in a substantially horizontal orientation and at a height to provide fall protection;
providing a pair of end rail braces having a first end and a second end, securing the first end of each of the end rail braces to one of the vertical supports and the second end of each of the end rail braces to the building structure at a height to provide stability to each the vertical supports while concurrently providing fall protection.
providing a pair of ladder jacks, each ladder jack having:
a ladder attachment member having an upper end, a lower end and means for engaging a ladder;
a plank support member pivotally mounted to the ladder attachment member, the plank support member having a pivotal connection end and a remote end;
an adjustable angular brace member which extends from the lower end of the ladder attachment member to engage the plank support member, the plank support member having a plurality of brace attachment positions such that when an appropriate one of the brace attachment positions is selected, the angular brace member maintains the plank support member in a substantially horizontal orientation; and a coupling positioned at the remote end of the plank support member, the coupling being adapted to engage a vertical support and maintain the vertical support in a substantially vertical orientation;
providing a pair of ladders and leaning them against a building structure in spaced apart relation;
mounting the ladder attachment members of each of the ladder jacks to one of the pair of ladders;
adjusting the angular brace members of each of the ladder jacks by selecting the appropriate brace attachment position on each plank support member to maintain each plank support member in a substantially horizontal orientation;
positioning a plank so that the plank extends between and is supported by the plank support members;
coupling vertical supports with the coupling on each plank support member of each of the ladder jacks, so that the vertical supports are maintained in a substantially vertical orientation;
securing a fall prevention side rail to each of the vertical supports so that the side rail extends between the vertical supports in a substantially horizontal orientation and at a height to provide fall protection;
providing a pair of end rail braces having a first end and a second end, securing the first end of each of the end rail braces to one of the vertical supports and the second end of each of the end rail braces to the building structure at a height to provide stability to each the vertical supports while concurrently providing fall protection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2476943 CA2476943A1 (en) | 2004-07-19 | 2004-07-19 | Ladder jack having fall protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2476943 CA2476943A1 (en) | 2004-07-19 | 2004-07-19 | Ladder jack having fall protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2476943A1 true CA2476943A1 (en) | 2006-01-19 |
Family
ID=35637018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2476943 Abandoned CA2476943A1 (en) | 2004-07-19 | 2004-07-19 | Ladder jack having fall protection |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2476943A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2536611A (en) * | 2014-12-15 | 2016-09-28 | Bisset James | An improved ladder jack and associated ladder securing bracket |
| US11015391B1 (en) * | 2020-02-20 | 2021-05-25 | Ayed Kanaan | Ladder seat assembly |
-
2004
- 2004-07-19 CA CA 2476943 patent/CA2476943A1/en not_active Abandoned
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2536611A (en) * | 2014-12-15 | 2016-09-28 | Bisset James | An improved ladder jack and associated ladder securing bracket |
| US11015391B1 (en) * | 2020-02-20 | 2021-05-25 | Ayed Kanaan | Ladder seat assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |