IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0734372
(2013-01-04)
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등록번호 |
US-8783534
(2014-07-22)
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발명자
/ 주소 |
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출원인 / 주소 |
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대리인 / 주소 |
Frijouf, Rust & Pyle, P.A.
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인용정보 |
피인용 횟수 :
1 인용 특허 :
19 |
초록
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A ladder support device is disclosed for engaging a ladder. The ladder supporting device comprises a base plate having a first hanger plate and a second hanger plate extending from the base support plate. A first retainer plate and a second retainer plate extend from the first hanger plate and the s
A ladder support device is disclosed for engaging a ladder. The ladder supporting device comprises a base plate having a first hanger plate and a second hanger plate extending from the base support plate. A first retainer plate and a second retainer plate extend from the first hanger plate and the second hanger plate respectively. A clip plate extends from the base plate for receiving the waistband and securing the base plate to the individual. The base plate, the first hanger plate and the first retainer plate define a first carriage for engaging the step of the ladder. The base plate, the second hanger plate and the second retainer plate define a second carriage for engaging the first stringer or the second stringer of the ladder.
대표청구항
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1. A ladder support device for engaging a ladder, the ladder including a first stringer and a second stringer coupled by a plurality of steps, the first stringer and the second stringer having a height, a width and a depth, the steps having a height, a width and a depth, an individual transporting t
1. A ladder support device for engaging a ladder, the ladder including a first stringer and a second stringer coupled by a plurality of steps, the first stringer and the second stringer having a height, a width and a depth, the steps having a height, a width and a depth, an individual transporting the ladder over a surface, the individual having a waistband encircling a waist of the individual, the ladder supporting device, comprises: a base plate having an exterior plate surface, an interior plate surface, an upper edge, a lower edge, a first side edge and a second side edge;a first hanger plate extending from said exterior plate surface of said base support plate and having an upper surface, a lower surface, an outer edge, a first side edge and a second side edge;a second hanger plate extending from said exterior plate surface of said base support plate and having an upper surface, a lower surface, an outer edge, a first side edge and a second side edge;a first retainer plate extending from said outer edge of said first hanger plate and having an exterior plate surface, an interior plate surface, an upper edge, a first side edge and a second side edge;a second retainer plate extending from said outer edge of said second hanger plate and having an exterior plate surface, an interior plate surface, an upper edge, a first side edge and a second side edge;a clip plate extending from said upper edge of said base plate and having an exterior clip surface, an interior clip surface, and an lower edge;said base plate and said clip plate defining a clip groove for receiving the waistband and securing the base plate to the individual;said base plate, said first hanger plate and said first retainer plate defining a first carriage for engaging the step of the ladder;said base plate, said second hanger plate and said second retainer plate defining a second carriage for engaging the first stringer or the second stringer of the ladder;said first hanger plate has a first plate length that is generally commensurate with the width of the step of the ladder;said second hanger plate has a second plate length that is generally commensurate with the width of the first stringer and the second stringer; andsaid second plate length greater than said first plate length. 2. A ladder support device for engaging a ladder as set forth in claim 1, wherein said first hanger plate has a generally intermediate position relative to said upper edge of said base plate and said lower edge of said base plate; said second hanger plate has a generally adjacent position relative to said lower edge of said base plate;said generally intermediate position and said generally adjacent position defining a guiding channel between said first retainer plate and said second retainer plate and a retainer channel between said first hanger plate and said second hanger plate;said guiding channel permitting inputting or outputting of the first stringer or the second stringer into or from said retainer channel only upon positioning the ladder in a general angled orientation; andsaid retainer channel permitting vertical displacement of the ladder relative to said base plate only upon positioning the ladder in a generally angled orientation. 3. A ladder support device for engaging a ladder as set forth in claim 1, wherein said first hanger plate has a first plate length that is generally commensurate with the width of the step of the ladder; said second hanger plate has a second plate length that is generally commensurate with the width of the first stringer and the second stringer; andsaid second plate length greater than said first plate length. 4. A ladder support device for engaging a ladder as set forth in claim 1, further including a first acute angle between said upper surface of said first hanger plate and said base plate for maintaining the step adjacent to said base plate; and a second acute angle between said upper surface of said second hanger plate and said base plate for maintaining the first stringer or the second stringer adjacent to said base plate. 5. A ladder support device for engaging a ladder as set forth in claim 1, further including a first acute angle between said upper surface of said first hanger plate and said base plate for maintaining the step adjacent to said base plate; a second acute angle between said upper surface of said second hanger plate and said base plate for maintaining the first stringer or the second stringer adjacent to said base plate; andsaid first hanger plate and said second hanger plate defining a parallel orientation. 6. A ladder support device for engaging a ladder as set forth in claim 1, further including a first acute angle between said upper surface of said first hanger plate and said base plate for maintaining the step adjacent to said base plate; a second acute angle between said upper surface of said second hanger plate and said base plate for maintaining the first stringer or the second stringer adjacent to said base plate;said lower surface of said first hanger plate and said exterior plate surface of said base plate defining an interior engaging angle;said upper surface of said second hanger plate and said interior plate surface of said second retainer plate defining an exterior engaging angle; andsaid interior engaging angle and said exterior engaging angle contacting with the first stringer or the second stringer for wedging the ladder within said second carriage. 7. A ladder support device for engaging a ladder as set forth in claim 1, further including a first obtuse angle between said upper surface of said first hanger plate and said first retainer plate for defining a first tapering passage between said first retainer plate and said base plate; and a second obtuse angle between said upper surface of said second hanger plate and said second retainer plate for defining a second tapering passage between said second retainer plate and said base plate. 8. A ladder support device for engaging a ladder as set forth in claim 1, wherein said first retainer plate has a first plate height that is generally commensurate with the depth of the step of the ladder; said second retainer plate has a second plate height that is generally commensurate with the depth of the first stringer and the second stringer; andsaid first plate height greater than said second plate height. 9. A ladder support device for engaging a ladder as set forth in claim 1, further including a primary acute angle between said first side edge of said first hanger plate and said exterior plate surface of said base plate and a secondary acute angle between said second side edge of said first hanger plate and said exterior plate surface of said base plate for defining a first narrowing plate width; and a primary acute angle between said first side edge of said second hanger plate and said exterior plate surface of said base plate and a secondary acute angle between said second side edge of said second hanger plate and said exterior plate surface of said base plate for defining a second narrowing plate width. 10. A ladder support device for engaging a ladder as set forth in claim 1, wherein said base plate, said first hanger plate, said first retainer plate, said second hanger plate, said second retainer plate and said clip plate being constructed from an integral one piece unit. 11. A ladder support device for engaging a ladder as set forth in claim 1, further including a first hangar polymeric layer coupled to said upper surface of said first hanger plate for increasing the coefficient of friction between the step and said first carriage and preventing displacement of the ladder relative to the ladder support device; and a second hanger polymeric layer couple to said upper surface of said second hanger plate for increasing the coefficient of friction between the first stringer or the second stringer and said second carriage and preventing displacement of the ladder relative to the ladder support device. 12. A ladder support device for engaging a ladder as set forth in claim 1, further including a first base polymeric layer coupled to said exterior plate surface of said base plate; a first hangar polymeric layer coupled to said upper surface of said first hanger plate;a first retainer polymeric layer couple to said internal plate surface of said first retainer plate;said first base polymeric layer, said first hangar polymeric layer and said first retainer polymeric layer defining a first generally U-shaped polymeric layer;said first generally U-shaped polymeric layer engaging with said step of said ladder for increasing the coefficient of friction between the step and said first carriage and preventing displacement of the ladder relative to the ladder support device;a second base polymeric layer couple to said exterior plate surface of said base plate;a second hanger polymeric layer couple to said upper surface of said second hanger plate;a second retainer polymeric layer couple to said internal plate surface of said second retainer plate;said second base polymeric layer, said second hanger polymeric layer and said second retainer polymeric layer defining a second generally U-shaped polymeric layer; andsaid second generally U-shaped polymeric layer engaging with the first stringer or the second stringer of the ladder for increasing the coefficient of friction between the first stringer or the second stringer and said second carriage and preventing displacement of the ladder relative to the ladder support device. 13. A ladder support device coupling to an individual, the individual having a waistband encircling a waist of the individual, the ladder supporting device, comprises: a base plate having an exterior plate surface, an interior plate surface, an upper edge, a lower edge, a first side edge and a second side edge;a first hanger plate extending from said exterior plate surface of said base support plate and having an upper surface, a lower surface, an outer edge, a first side edge and a second side edge;a second hanger plate extending from said exterior plate surface of said base support plate and having an upper surface, a lower surface, an outer edge, a first side edge and a second side edge;a first retainer plate extending from said outer edge of said first hanger plate and having an exterior plate surface, an interior plate surface, an upper edge, a first side edge and a second side edge;a second retainer plate extending from said outer edge of said second hanger plate and having an exterior plate surface, an interior plate surface, an upper edge, a first side edge and a second side edge;a clip plate extending from said upper edge of said base plate and having an exterior clip surface, an interior clip surface, and an lower edge;said base plate and said clip plate defining a clip groove for receiving the waistband and securing the base plate to the individual;a ladder including a first stringer and a second stringer coupled by a plurality of steps;said first stringer and said second stringer defining a height, a width and a depth;said plurality of steps defining a height, a width and a depth;said base plate, said first hanger plate and said first retainer plate defining a first carriage for engaging said step of said ladder;said base plate, said second hanger plate and said second retainer plate defining a second carriage for engaging said first stringer or said second stringer of said ladder;said first hanger plate has a generally intermediate position relative to said upper edge of said base plate and said lower edge of said base plate;said second hanger plate has a generally adjacent position relative to said lower edge of said base plate;said generally intermediate position and said generally adjacent position defining a guiding channel between said first retainer plate and said second retainer plate and a retainer channel between said first hanger plate and said second hanger plate;said guiding channel permitting inputting or outputting of said first stringer or said second stringer into or from said retainer channel only upon positioning said ladder in a general angled orientation;said retainer channel permitting vertical displacement of said ladder relative to said base plate only upon positioning said ladder in a generally angled orientation;a first acute angle between said upper surface of said first hanger plate and said base plate for maintaining said step adjacent to said base plate; anda second acute angle between said upper surface of said second hanger plate and said base plate for maintaining said first stringer or said second stringer adjacent to said base plate. 14. A ladder support device coupling to an individual, the individual having a waistband encircling a waist of the individual, the ladder supporting device, comprises: a base plate having an exterior plate surface, an interior plate surface, an upper edge, a lower edge, a first side edge and a second side edge;a first hanger plate extending from said exterior plate surface of said base support plate and having an upper surface, a lower surface, an outer edge, a first side edge and a second side edge;a second hanger plate extending from said exterior plate surface of said base support plate and having an upper surface, a lower surface, an outer edge, a first side edge and a second side edge;a first retainer plate extending from said outer edge of said first hanger plate and having an exterior plate surface, an interior plate surface, an upper edge, a first side edge and a second side edge;a second retainer plate extending from said outer edge of said second hanger plate and having an exterior plate surface, an interior plate surface, an upper edge, a first side edge and a second side edge;a clip plate extending from said upper edge of said base plate and having an exterior clip surface, an interior clip surface, and an lower edge;said base plate and said clip plate defining a clip groove for receiving the waistband and securing the base plate to the individual;a ladder including a first stringer and a second stringer coupled by a plurality of steps;said first stringer and said second stringer defining a height, a width and a depth;said plurality of steps defining height, a width and a depth;said base plate, said first hanger plate and said first retainer plate defining a first carriage for engaging said step of said ladder;said base plate, said second hanger plate and said second retainer plate defining a second carriage for engaging said first stringer or said second stringer of said ladder;a first acute angle between said upper surface of said first hanger plate and said base plate for maintaining said step adjacent to said base plate;a second acute angle between said upper surface of said second hanger plate and said base plate for maintaining said first stringer or said second stringer adjacent to said base plate;said first hanger plate and said second hanger plate defining a parallel orientation;said lower surface of said first hanger plate and said exterior plate surface of said base plate defining an interior engaging angle;said upper surface of said second hanger plate and said interior plate surface of said second retainer plate defining an exterior engaging angle; andsaid interior engaging angle and said exterior engaging angle contacting with said first stringer or said second stringer for wedging said ladder within said second carriage.
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