The problem of traversing the offset area between the fly section and the base section of an extension ladder is solved by a step adaptor of the subject invention. A step adaptor can have two or more steps which can be progressively narrower in depth. The step adaptor can be placed on the first available rung just below the fly section. The progressively narrower depth of the steps of a step adaptor create a transition zone in the offset area that reduces the abrupt change in distance between the rungs in the fly section and the rungs in the base section.

A collapsible marine ladder has a stowed configuration and a deployed configuration. The collapsible marine ladder has a first rail, a second rail, and rungs. Each rung has a rung length spanning between the first rail and the second rail. A rung attachment is attached to each of the plurality of rungs, wherein the rung attachment comprises a rung attachment body, a recess along a bottom section of the rung attachment body for receiving the rung, and a top surface of the rung attachment body. A first section of the top surface is above the rung when the rung attachment is attached to the rung and the collapsible marine ladder is in the deployed configuration. A second section is cojoined with a front side of the first section and wherein the second section is downwardly angled such that an angle is formed between the first section and the second section.

Attachments for a collapsible marine ladder including a rung attachment for attaching to the ladder rungs. Each rung attachment includes an upper part having a first channel defined along a downward facing side of the upper part. The first channel receives an upward facing side of the rung. A downwardly angled section of the upper part extends below the rung when the upper part is attached to the rung. A pad is received on top of an upward facing side of the upper part and interfaces with a user's foot. A second channel on an upward facing side of a lower part receives a downward facing side of the rung such that the upper part attaches to the lower part. A rail attachment attaches to a rail of the ladder and receives a rail extension for extending the length of the rail. The rail extension has a handgrip.

A rung which can be installed in a ladder is disclosed which comprises a first plate having first and second ends, each of the first and second ends having a relief tab and an opening, and a second plate, the second plate being identical to the first plate, the first and second plates being nestable such that the relief tabs of the first plate insert through the openings of the second plate to form the rungs.

A ladder having a first fiberglass rail. The ladder having a second fiberglass rail. The ladder having a one-piece composite rung which is hollow and made of carbon fiber or glass. The rung has a middle and a first end and a second end. The ladder having rivets that extend through the first end and the second end of the rung to attach the rung to the first rail and the second rail. No portion of the rung penetrates any portion of the first or second rails. A method for producing a ladder. A method for forming a one-piece composite rung for a ladder. A method for using a ladder.

The invention relates to a scaffold stairway (10) having two spaced-apart side rails (12, 14; 12.sup.(I), 14.sup.(I); 12.sup.(II), 14.sup.(II); 12.sup.(III), 14.sup.(III); 12.sup.(IV), 14.sup.(IV)) designed as hollow profiles (43; 43.sup.(I); 43.sup.(II); 43.sup.(III); 43.sup.(IV)) and a plurality of separate steps (16). The steps (16) can be fastened by their free ends (17) in holding devices for holding the steps that are designed as grooves (18; 18.sup.(I); 18.sup.(II); 18.sup.(III); 18.sup.(IV)) on the mutually facing lateral faces (19) of the side rails (12, 14; 12.sup.(I), 14.sup.(I); 12.sup.(II), 14.sup.(II); 12.sup.(III), 14.sup.(III); 12.sup.(IV), 14.sup.(IV)). The free ends (17) of the steps (16) lie on a groove flank (96a, 96b) or a groove flank portion (60a, 60b). As a result, the side rails (12, 14; 12.sup.(I), 14.sup.(I); 12.sup.(II), 14.sup.(II); 12.sup.(III), 14.sup.(III); 12.sup.(IV), 14.sup.(IV)) can be coupled.

A ladder having a first fiberglass rail. The ladder having a second fiberglass rail. The ladder having a one-piece composite rung which is hollow and made of carbon fiber or glass. The rung has a middle and a first end and a second end. The ladder having rivets that extend through the first end and the second end of the rung to attach the rung to the first rail and the second rail. No portion of the rung penetrates any portion of the first or second rails. A method for producing a ladder. A method for forming a one-piece composite rung for a ladder. A method for using a ladder.

A rung mounting structure used for a ladder includes supporting legs, a rung and a connecting plate, wherein upper ends of the two supporting legs are connected through the connecting plate, the rung is arranged between the supporting legs, the supporting legs are made of metal sections, concave parts are arranged on inner sides of the supporting legs and each are provided with an opening allowing the rung to be inserted therein, and the sides, opposite to the openings, of the concave parts are sealed; and after the rung is inserted into the concave parts, the rung and the supporting legs are circumferentially limited and are fixedly connected.

A rung which can be installed in a ladder is disclosed which comprises a first plate having first and second ends, each of the first and second ends having a relief tab and an opening, and a second plate, the second plate being identical to the first plate, the first and second plates being nestable such that the relief tabs of the first plate insert through the openings of the second plate to form the rungs.

Attachments for a collapsible marine ladder including a rung attachment for attaching to the ladder rungs. Each rung attachment includes an upper part having a first channel defined along a downward facing side of the upper part. The first channel receives an upward facing side of the rung. A downwardly angled section of the upper part extends below the rung when the upper part is attached to the rung. A pad is received on top of an upward facing side of the upper part and interfaces with a user's foot. A second channel on an upward facing side of a lower part receives a downward facing side of the rung such that the upper part attaches to the lower part. A rail attachment attaches to a rail of the ladder and receives a rail extension for extending the length of the rail. The rail extension has a handgrip.