CA1281310C - Attachment to stabilize and expand the use of ladders constructed with hollow rungs - Google Patents
Attachment to stabilize and expand the use of ladders constructed with hollow rungsInfo
- Publication number
- CA1281310C CA1281310C CA000569613A CA569613A CA1281310C CA 1281310 C CA1281310 C CA 1281310C CA 000569613 A CA000569613 A CA 000569613A CA 569613 A CA569613 A CA 569613A CA 1281310 C CA1281310 C CA 1281310C
- Authority
- CA
- Canada
- Prior art keywords
- ladder
- roof
- ladders
- attachments
- rungs
- 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.)
- Expired - Lifetime
Links
- 229910052751 metal Inorganic materials 0.000 claims abstract description 13
- 239000002184 metal Substances 0.000 claims abstract description 13
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 229910000831 Steel Inorganic materials 0.000 abstract 2
- 239000010959 steel Substances 0.000 abstract 2
- 239000002023 wood Substances 0.000 abstract 2
- 238000010276 construction Methods 0.000 abstract 1
- 230000000284 resting effect Effects 0.000 abstract 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C7/00—Component parts, supporting parts, or accessories
- E06C7/16—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
- E06C7/48—Ladder heads; Supports for heads of ladders for resting against objects
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ladders (AREA)
Abstract
ATTACHMENTS TO STABILIZE AND EXPAND
THE USE OF HOLLOW RUNG LADDERS
ABSTRACT OF THE DISCLOSURE
A pair of attachments for use with ladders constructed with hollow rungs to stabilize the ladder and to protect the gutter.
These attachments when used with ladders also provide for a scaffold plank. The attachments when used with a ladder on a pitched roof allows the ladder to be used to access that roofs peak. Previously the ladder would rest on the rain gutter when the user was to access the roof of a building. Previously a work platform had to be built from wood or metal resulting in time consuming construction. Previously when accessing the roof peak of a building a means of providing a positive foothold had to be constructed from rope and ladder or from wood. The present invention provides steel flat bars bent to fit the rung spacing of the ladder with a steel tube welded at each end sized to fit snuggly into the opening of any two consecutive rungs in that ladder. The ladder can now be used to access the roof of a building without resting on the gutter. The ladder can be used as part of a scaffold and to provide a positive foothold when on a pitched roof.
THE USE OF HOLLOW RUNG LADDERS
ABSTRACT OF THE DISCLOSURE
A pair of attachments for use with ladders constructed with hollow rungs to stabilize the ladder and to protect the gutter.
These attachments when used with ladders also provide for a scaffold plank. The attachments when used with a ladder on a pitched roof allows the ladder to be used to access that roofs peak. Previously the ladder would rest on the rain gutter when the user was to access the roof of a building. Previously a work platform had to be built from wood or metal resulting in time consuming construction. Previously when accessing the roof peak of a building a means of providing a positive foothold had to be constructed from rope and ladder or from wood. The present invention provides steel flat bars bent to fit the rung spacing of the ladder with a steel tube welded at each end sized to fit snuggly into the opening of any two consecutive rungs in that ladder. The ladder can now be used to access the roof of a building without resting on the gutter. The ladder can be used as part of a scaffold and to provide a positive foothold when on a pitched roof.
Description
~2~3~3~ 0 ATTACHL~T TO STABILI~ AM~ EXP~
T~E USE OF HOLL~^I R~NC. LA~rERS
EACKGRDU~D OF I~E I~ ~ION
The invention relates to the field of ladders and scaffolds.
Mbre particularly, the invention relates to expanding the use of a ladder. Ladders are used extensively in ard about the home and ir.dustry. Many users for example use the ladder to access the roof of a building. The ladder is also used to gain access to the side of a building. Currently when the ladder is used to access the roof of that building it in many cases must rest on the rain gutter. Currentl~
~Jhen on the roof ~te user usually relies on his foot wear for his footing. Currently when a platfcLm is required for a work project it must be fabricated from material brought into the wor~ area in place of the ladder already present.
The ladder related to this invention is a ladder fahricated frc~.t aluminum with holl~^r rungs. It is apparent that ~Ihen the ladder is rested on the light weight aluminu~ or ~inyl gutter, that rain gutter presents both a smooth surface for which the ladder to slide off as ~rell as weak oonstruction for support of the ladder and its a load. ~^~ten working on a pitc~ned roof the surface ma~ be slippery due to sno~, ice or rain. It may afford poor footing by virtue of its steep pitch or construction material. Many jobs are attempted from a poor platform because the building of a suitable platform is considered to large a task for tne job at hand. Many people have fallen with ladders tmsecured, from roofs affording poor footing and from make-shift platform, to serious injury. me problem is p æticularly prominent æound the home wtere the user is un~^7are of the dangers involved with the use of a ladder and where ln many cases safety is left to chance for lack of a convenient safety device.
.
~L~8~:~10 SUM~gY OF INVENTION
The present invention provides for a set of attachements to fit into the ladder all~ing part of the load placed o~ the ladder to be transfered to the roof over the gutter thus protecting the gutter and stabilizing the ladder. Ihe present invention allows the ladder to bec~me part of a scaffold. The present invention allcws the ladder to be used as a positive foothold when on the pitched roof of a building. It comprises a set of flatbars bent through a radius to an angle with tubing welded at right angles at either end allowing these brackets to fit into ladders with hollow rungs.
q lZ~3~
BRIEF ~ESCRIPTION OF TIIE D~ r,~IMGS
Fig. 1 is a perspective view of ~y invention showing the ccmponents of the invention.
Fig. 2 is a perspective view of ~le ladder showing my invention in place to stabilize the lad~er on the roof over and away from the gutter.
Fig. 3 is a perspective view of the ladder showing my invention in place over the roof peak and all~ring the ladders to become part of a scaffold.
Fig. 4 and 5 are a perspective view of two folding ladders with my invention in plaoe supporting part of a scaffold.
Referring specifically to the drawings in which like numerals refer to like parts, numeral 1 is a conventional ladder with hollow rungs ; Detachably connected with any of the ladder having a ~etal tubing7 welded at a right angle to each end of the bar 5. The metal tubing 7 having a diameter less that the insider diameter of the hollow rungs 2. The brackets 3 and 4 are mirror image of each other.
The length 8 of one leg of the flat bar 5 differs frcm the length 9 of the other leg to all~r for various use of the device.
e distance "~" between the metal tubing 7 or each bracket is greater than the distance bet~een a pair of adjacent hollow rungs 2.
The problem with designing an attac~ ent of this nature is designing it free of moving parts to fit all ladders with hollcw rungs while performing all the embodl~ints depicted by the accomDanying illustrations. The present invention does, however, perform all the embodiments illustrated herein.
In operation the attendant will grasp each of the two pieces of the attachment at the welded ends and spring them sliahtly. This will allow for a snug fit of the metal tubing into each opposite ends of a pair of hollow run~f the ladder at the desired loca-tion.
As well be apparent to persons skilled in the art, various modifications and adaptions of the structure above-described are possible without de~arture fram the spirit of ~he invention. The scope of which is defined in the appended claims.
.~
T~E USE OF HOLL~^I R~NC. LA~rERS
EACKGRDU~D OF I~E I~ ~ION
The invention relates to the field of ladders and scaffolds.
Mbre particularly, the invention relates to expanding the use of a ladder. Ladders are used extensively in ard about the home and ir.dustry. Many users for example use the ladder to access the roof of a building. The ladder is also used to gain access to the side of a building. Currently when the ladder is used to access the roof of that building it in many cases must rest on the rain gutter. Currentl~
~Jhen on the roof ~te user usually relies on his foot wear for his footing. Currently when a platfcLm is required for a work project it must be fabricated from material brought into the wor~ area in place of the ladder already present.
The ladder related to this invention is a ladder fahricated frc~.t aluminum with holl~^r rungs. It is apparent that ~Ihen the ladder is rested on the light weight aluminu~ or ~inyl gutter, that rain gutter presents both a smooth surface for which the ladder to slide off as ~rell as weak oonstruction for support of the ladder and its a load. ~^~ten working on a pitc~ned roof the surface ma~ be slippery due to sno~, ice or rain. It may afford poor footing by virtue of its steep pitch or construction material. Many jobs are attempted from a poor platform because the building of a suitable platform is considered to large a task for tne job at hand. Many people have fallen with ladders tmsecured, from roofs affording poor footing and from make-shift platform, to serious injury. me problem is p æticularly prominent æound the home wtere the user is un~^7are of the dangers involved with the use of a ladder and where ln many cases safety is left to chance for lack of a convenient safety device.
.
~L~8~:~10 SUM~gY OF INVENTION
The present invention provides for a set of attachements to fit into the ladder all~ing part of the load placed o~ the ladder to be transfered to the roof over the gutter thus protecting the gutter and stabilizing the ladder. Ihe present invention allows the ladder to bec~me part of a scaffold. The present invention allcws the ladder to be used as a positive foothold when on the pitched roof of a building. It comprises a set of flatbars bent through a radius to an angle with tubing welded at right angles at either end allowing these brackets to fit into ladders with hollow rungs.
q lZ~3~
BRIEF ~ESCRIPTION OF TIIE D~ r,~IMGS
Fig. 1 is a perspective view of ~y invention showing the ccmponents of the invention.
Fig. 2 is a perspective view of ~le ladder showing my invention in place to stabilize the lad~er on the roof over and away from the gutter.
Fig. 3 is a perspective view of the ladder showing my invention in place over the roof peak and all~ring the ladders to become part of a scaffold.
Fig. 4 and 5 are a perspective view of two folding ladders with my invention in plaoe supporting part of a scaffold.
Referring specifically to the drawings in which like numerals refer to like parts, numeral 1 is a conventional ladder with hollow rungs ; Detachably connected with any of the ladder having a ~etal tubing7 welded at a right angle to each end of the bar 5. The metal tubing 7 having a diameter less that the insider diameter of the hollow rungs 2. The brackets 3 and 4 are mirror image of each other.
The length 8 of one leg of the flat bar 5 differs frcm the length 9 of the other leg to all~r for various use of the device.
e distance "~" between the metal tubing 7 or each bracket is greater than the distance bet~een a pair of adjacent hollow rungs 2.
The problem with designing an attac~ ent of this nature is designing it free of moving parts to fit all ladders with hollcw rungs while performing all the embodl~ints depicted by the accomDanying illustrations. The present invention does, however, perform all the embodiments illustrated herein.
In operation the attendant will grasp each of the two pieces of the attachment at the welded ends and spring them sliahtly. This will allow for a snug fit of the metal tubing into each opposite ends of a pair of hollow run~f the ladder at the desired loca-tion.
As well be apparent to persons skilled in the art, various modifications and adaptions of the structure above-described are possible without de~arture fram the spirit of ~he invention. The scope of which is defined in the appended claims.
.~
Claims
ARE EXCLUSIVE PROPERTY OR PRIVILEGE IS
CLAIMED ARE DEFINED AS FOLLOWS:
1. A bracket attachment for a ladder having a plurality of spaced hollow rungs, said bracket attachment having a flat metal bar bended at an angle, a pair of metal tubes, each one of said metal tubes being attached at one end to each end of said flat metal bar, the other end of said metal tubes extending a distance from an edge of said flat metal bar, the opposite distance between each metal tube being greater than the distance between a pair of adjacent hollow rungs whereby upon compression of each end of said flat metal bar toward each other, the metal tubes could be inserted into the hollow rungs of the ladder with a spring action providing a positive locking of said bracket within the ladder rungs and without the use of any other fastening means.
*************
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Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000569613A CA1281310C (en) | 1988-06-16 | 1988-06-16 | Attachment to stabilize and expand the use of ladders constructed with hollow rungs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000569613A CA1281310C (en) | 1988-06-16 | 1988-06-16 | Attachment to stabilize and expand the use of ladders constructed with hollow rungs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1281310C true CA1281310C (en) | 1991-03-12 |
Family
ID=4138216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000569613A Expired - Lifetime CA1281310C (en) | 1988-06-16 | 1988-06-16 | Attachment to stabilize and expand the use of ladders constructed with hollow rungs |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1281310C (en) |
-
1988
- 1988-06-16 CA CA000569613A patent/CA1281310C/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKLA | Lapsed |