1. Field of the Invention
The present invention relates generally to improvements in devices for enabling a user to climb up or down, forward or backwards relative to a surface. In particular, it relates to a new and improved system and method for providing a move-on ladder.
2. Description of the Related Art
The systems and methods of the present invention are particularly useful for enabling efficient, effective and increased mobility forward or backwards movements relative to a surface while the user is on the ladder. The present invention clearly saves production time, keeping the user on the ladder while relocating, and it definitely more convenient and time saving to the user.
A variety of systems and methods have been unsuccessfully developed over the years for providing alternatives to walking while on the ladder.
It would be desirable to provide a ladder which enables the user great forward or backwards mobility, on a non smooth surface floor, without requiring the user to step down from it.
It would be desirable to provide a rungless ladder which contains less material and parts for increased economy and efficiency, which is lighter in weight for greater forward or backwards mobility and which provides a place holder to necessary working tools and materials.
Therefore, the present invention provides improved systems and methods for providing and efficient, effective and increased mobility, without requiring the user to step down from it, ladder. The inventions described herein satisfy these and other needs.
Briefly and in general terms, the present invention provides a new and improved system and method for enabling the user forward and backwards mobility relative to a surface. The present invention can also be configured to facilitate an economical and efficient system.
More particularly, for example, in one embodiment—dual-ladder, of the present invention is provided to enable the user great forward or backwards mobility, on a smooth and non smooth surface floor, without requiring the user to step down from it. Further, the system includes pair of narrow ladders, one for each user foot, attached to the main frame and connected to each other by flat straps pivotally attaching pair of ladders to the pivotally rotating steering strap which attached to the pipe which is pivotally attached to the further legs of the system. To increase mobility the system further includes pair of wide rubber wheels which are attached to the bottom of each of the narrow ladders and pair of wheel which each of them attached to the further leg of the system. Weight on the narrow ladders prevent from wide rubber to function. The system allows the user to “Walk the ladder” by pushing one leg at a time.
Second embodiment—rungless ladder, of the present invention, a rungless ladder system, which contains less material and parts for increased economy and efficiency, is provided for enabling the user to climb up or down, forward or backwards movements relative to a surface and which provides a tray to necessary working tools and materials which telescopically expanded to required height. Further, the system includes a pair of pedals, each adapted to enable the user to slidably move along the track and to engage with or release from the track. Each of the pair of pedals includes a slidable-movement-enabling element, for enabling slidable movements of the pedal along the track responsive to user movement thereof.
Each pedal also includes a track-engaging element, for enabling the pedal to engage the track responsive to user movement of the pedal into a track-engaging position, and for enabling the pedal to release from engaging with the track responsive to user movement of the pedal to a track-releasing position.
The present invention is directed to an improved system and method for enabling a user to climb up or down and step forward or backwards for movement while the user is on the ladder, relative to a surface, in an efficient and effective manner. The invention has 3 different models; the 1st one is called a dual-ladder system which enables the user great forward or backwards mobility, also on a non smooth surface floor. The 2nd model is called the rungless ladder system, which contains less material and parts than conventional ladder for increased economy and efficiency, for enabling the user to climb with a pedal on a track, up or down, and which provides tools tray which telescopically expanded to required height. The 3rd model is called a poll wheel ladder, by placing the polls on the front of the ladder and then pulling them back in a “ski” like movement and by that moving the ladder forward. The preferred embodiments of the improved system and method are illustrated and described herein by way of example only and not by way of limitation.
In the drawing, wherein like reference numerals denote like or corresponding parts throughout the drawing figures, and particularly in the preferred embodiments in accordance with the invention as shown in
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Mobility of the ladder is provided by the fact that the system has plurality of wheels under every leg and privately connected hinge connectors systems. The system is foldable by releasing flat straps 8 from pins 9 and by pooling up middle lock 16.
Referring to
Referring to
In view of the above, it is apparent that the system and the method of the preferred embodiments of the present invention enhance substantially the effectiveness if enabling a user to be supported for enabling movement up, down, forward, and backwards in relation to a surface. The system and method further enable convenient.
While the present invention has been described in connection with the specific embodiments identified herein, it will be apparent to those skilled in the art that many alternatives, modifications and variations are possible in light of the above description. Accordingly, the invention is intended to embrace all such alternatives, modifications and variations as may fall within the spirit and scope of the inventions disclosed herein.
This is a continuation of appliction Ser. No. 10/171,100 fied Jun. 13, 2002, now abandoned
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Number | Date | Country | |
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20040245045 A1 | Dec 2004 | US |
Number | Date | Country | |
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Parent | 10171100 | Jun 2002 | US |
Child | 10890446 | US |