LADDER EQUIPPED WITH SAFETY BAR
First Claim
1. A ladder equipped with a safety bar, the ladder comprising:
- a first support supported on the ground, including a plurality of horizontal bars;
a fixed bracket whose one end portion is fixed to the upper portion of the first support;
a second support which is rotatably combined with the other end portion of the fixed bracket;
a foothold that is placed between the first and second supports and is rotatably combined toward the second support on one side, thereby offering a working space;
a safety bar which is installed in a C-shaped fashion toward the front side from the fixed bracket, thereby securing a front-side safety of a worker by preventing the worker from falling down from the foothold to the front side; and
rotating devices which are installed in the first and second supports, respectively, and folds and unfolds the first and second supports, wherein each of the rotating devices comprises;
a first circular rotating unit along the outer circumferential surface of which a groove is formed;
a second circular rotating unit which is rotatably inserted into the groove of the first rotating unit; and
a hinge axis which penetrates centers of the first rotating unit and the second rotating unit and axially combines the first rotating unit and the second rotating unit each other.
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Accused Products
Abstract
A ladder equipped with a safety bar comprises a first support supported on the ground, including a plurality of horizontal bars. A fixed bracket has one end fixed to the upper portion. A second support is rotatably combined with the other end portion of the fixed bracket. A foothold is between the first and second supports and is rotatably combined toward the second support on one side. A safety is installed in a C-shaped fashion toward the front side from the fixed bracket. Rotating devices are installed in the first and second supports. Each of the rotating devices comprises a first circular rotating unit having a groove on the outer circumferential surface. A second circular rotating unit rotatably inserted into the groove. A hinge axis penetrates centers of the first rotating unit and the second rotating unit and axially combines the first and second rotating units.
25 Citations
8 Claims
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1. A ladder equipped with a safety bar, the ladder comprising:
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a first support supported on the ground, including a plurality of horizontal bars; a fixed bracket whose one end portion is fixed to the upper portion of the first support; a second support which is rotatably combined with the other end portion of the fixed bracket; a foothold that is placed between the first and second supports and is rotatably combined toward the second support on one side, thereby offering a working space; a safety bar which is installed in a C-shaped fashion toward the front side from the fixed bracket, thereby securing a front-side safety of a worker by preventing the worker from falling down from the foothold to the front side; and rotating devices which are installed in the first and second supports, respectively, and folds and unfolds the first and second supports, wherein each of the rotating devices comprises; a first circular rotating unit along the outer circumferential surface of which a groove is formed; a second circular rotating unit which is rotatably inserted into the groove of the first rotating unit; and a hinge axis which penetrates centers of the first rotating unit and the second rotating unit and axially combines the first rotating unit and the second rotating unit each other. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification