The present disclosure relates to the field of ladders. More particularly, but not exclusively, the present disclosure relates to safety and stabilizing devices for ladders.
Ladder safety is an ever-growing concern in the construction industry, as well as for individual home-owners who use ladders. Once an individual is up on a ladder, the ladder can become unstable in a variety of ways potentially injuring the individual or causing damage to the surrounding structure. Additionally, ladders positioned up against gutters can cause damage to the gutters due to the force the ladder exerts on the gutter and the direct contact between the items.
Accordingly, there exists a need for improved safety and stabilizing devices for ladders which may also provide gutter protection during use of the ladder.
In broad terms, a first aspect of the present disclosure provides for a gutter hook for engaging a ladder and a gutter installed upon a structure, typically a building. When properly utilized, the gutter hook is positioned between the ladder and the gutter, preventing contact between the ladder and the gutter. Use of the gutter hook prevents structural and surface damage to the gutter and increases ladder stability. The gutter hook is made from a polymeric material to cushion contact with the gutter. The gutter hook comprises a member having a ladder portion, an adjacent gutter portion and a cut-out-portion proximate the gutter and ladder portions adapted to engage at least one edge of the gutter. The ladder portion has a ladder engaging channel opposite the gutter portion to receive and maintain a single ladder beam therein. Proper use of the gutter hook requires two units, one for each of the two ladder beams.
For one embodiment of the gutter hook, the cut-out-portion is a narrow channel substantially conforming to a front edge of the gutter and the gutter portion is adapted to fit within and fill the gutter. This embodiment is particularly suited for use with gutters that do not have leaf guards installed. For this embodiment, the weight of the ladder and its occupant is born by the front, back, and bottom of the gutter and deflection of the front edge of the gutter is minimized because the gutter is substantially filled with the gutter portion of the gutter guard.
For a further embodiment of the gutter hook, the cut-out-portion is a broad channel conforming substantially to a front edge and an upper surface of the gutter and the gutter portion is adapted to fit over a leaf guard fitted onto the gutter. This embodiment is particularly suited for use with gutters that have leaf guards installed. For this embodiment, the weight of the ladder and its occupant is born by the front of the gutter and the leaf guard fitted over the top of the gutter. Proper use of this embodiment of the gutter hook requires two units, one for each of the two ladder beams.
A further aspect of the current disclosure involves a ladder extender for engaging a ladder and a gutter board to provide an offset to the ladder and protect shingles from contact with a ladder in the absence of a gutter. Preferred ladder extenders are made from a polymeric material. One embodiment of the ladder extender involves a member having a ladder portion and an adjacent gutter board portion, the ladder portion having a ladder engaging channel opposite the gutter board portion for receiving and maintaining a single ladder beam therein. When properly installed the gutter board portion is adapted to fit against the gutter board and position or offset the ladder away from the shingles while providing proper support and stability for the ladder. Proper use of the ladder extender requires two units, one for each of the two ladder beams.
A further aspect of the current disclosure involves a ground spike for positioning against the bottom of a ladder beam to add stability to the ladder. Although the ground spike can be made from a variety of materials, polymeric materials are preferred, particularly rigid and hard polymeric materials. The ground spike is particularly useful for safely positioning a ladder on soft surfaces such as the ground in a yard. Aspects of the preferred ground spike are described in detail below.
A further aspect of the current disclosure involves a ladder shoe for positioning against the bottom of a ladder beam to add stability to the ladder placed on a hard surface such as concrete, a wood deck, or a driveway surface. Although the ladder shoe can be made from a variety of materials, polymeric materials are preferred, particularly rigid and hard polymeric materials having non-skid properties. The ladder shoe is particularly useful for safely positioning a ladder on hard surfaces. Aspects of the preferred ladder shoe are described in detail below.
Finally, a still further aspect of the present disclosure involves a kit having members for stabilizing a ladder. Preferred kits include at least two members selected from the group consisting of (a) a gutter hook; (b) a ladder extender; (c) a ground spike; and (d) a ladder shoe. Preferred kits are packaged in a bubble wrap manner allowing the kit's contents to be visible without opening the packaging.
For the purpose of promoting an understanding of the principles of the disclosure, reference will now be made to the embodiments illustrated in the drawings and specific language will be used to describe the same. It will nevertheless be understood that no limitation of the scope of the disclosure is thereby intended. Any alterations and further modifications in the described embodiments, and any further applications of the principles of the disclosure as described herein are contemplated as would normally occur to one skilled in the art to which the disclosure relates.
The present disclosure describes a plurality of ladder safety devices. Each of the ladder safety devices will be described as a single item; however, it should be appreciated that each of the devices is designed to be utilized as one item in a pair of items corresponding to the two ladder beams of a ladder. The various devices described herein may be used separately or in combination as desired. Additionally, two or more of the different ladder safety devices described herein may be combined as a kit. The devices seek to add stability to a ladder during use. Additionally, a few of the devices provide protection to a gutter which the ladder may contact during use.
Referring generally to
Portion 26 defines a slot or channel 30 extending along a beam axis B in which a ladder beam is positioned. Accordingly, hook 20 protects the gutter from direct contact with the ladder beam, provides weight distribution, and further provides safety to the user on the ladder as the ladder is engaged with the gutter. Channel 30 may be sufficiently deep such that the entire ladder beam is positioned within the channel or the channel may be designed such that only a part of the ladder beam rests within the channel. Beam axis B and channel 30 form an angle A with respect to bottom surface 31 of hook 20. In certain embodiments, it is desirable to position ladders at around a 15 degree angle with the vertical surface that that the ladder contacts near its top end. Accordingly, in certain embodiments, angle A is around 75 degrees. However, it should be appreciated that hook 20, including channel 30, can be sized, shaped, configured, orientated and proportioned differently as would generally occur to one skilled in the art.
To further increase the safety for a user on the ladder, hook 20 may optionally include a system, mechanism or device to assist in retaining the ladder beam within channel 30. An example retaining mechanism is illustrated in
Specifically referring to
It should be appreciated that gutter hooks 20, 120, 220, and/or 320 may be provided in a variety of different sizes. In certain embodiments, the gutter hooks may be sized to correspond to a typical 5 inch gutter. Additionally, in certain embodiments the gutter hooks may be sized to correspond to a typical 6 inch gutter. In a particular embodiment, the distance between the innermost surface of the channel and the outermost top edge of the gutter wall is around ¾ of an inch. In other words, the gutter hook functions to offset the ladder beam a distance of about ¾ of an inch from the top edge of the outer gutter wall. Additionally, in certain embodiments use of the gutter hooks functions to position the ladder a distance of around 5 inches from the roof line for a typical 5 inch gutter and a distance of around 6 inches from the roof line for a typical 6 inch gutter.
Positioning the hooks or extender devices discussed above in the desired positions may occur in a variety of possible ways as would generally occur to one skilled in the art. In certain embodiments, the hooks or extender devices may be positioned in the desired positions up against the surface upon which the ladder is reaching. Thereafter, the ladder beams are positioned in the appropriate channels of the devices. In other embodiments, the hooks or extender devices may first be positioned adjacent the ladder beams, with the ladder beams positioned in the channels as desired, prior to use of the ladder. In other embodiments, the ladder may be positioned up against the surface, the user may climb the ladder carrying the hooks or extender devices, may position the hooks or extender devices as desired offset from the ladder beams, and then may move the ladder by slightly pulling the ladder away from the surface and slightly over so that the ladder beams fall into place into the channels. In some embodiments, rather than moving the ladder slightly to the side, the user may slide the hooks or extender devices straight down the ladder beams and then slightly pull the ladder out from the surface, place the hooks or extender devices in position, and then return the ladder to the surface so that the ladder beams are positioned in the channels. The previous examples are just a few of the numerous possible ways to position the hooks or extender devices as desired.
Illustrated in
Ground spike 520 defines a channel 530 configured to receive the end of the ladder beam. Spike 520 includes a bottom channel surface 536 at least partially defining channel 520. In certain embodiments, the bottom end of the ladder beam is configured to contact or rest on or abut surface 536 when the ladder beam is received in channel 530. As illustrated, ground spike 520 may be generally triangular in shape, with a spike end 534 configured to be driven into the ground. End 534 may be planar as illustrated or fully triangular. However, it should be appreciated that spike 520 may be configured different as would generally occur to one skilled in the art, so long as the ground spike is capable of being driven at least partially into the ground and positionable against the bottom of the ladder beam to provide additional support and stability to the ladder. It is additionally contemplated that the ground spike could include a securing mechanism to secure the ground spike and the bottom of the ladder beam together. There are various types of securing mechanisms which could be used as would generally occur to one skilled in the art. As an example, a strap attached to the spike could be used to wrap around the bottom of the ladder beam and secure the components together. To use ground spike 520, the ground spike may be driven into the ground either before or after the ladder beam is placed in the desired position.
While the disclosure has been illustrated and described in detail in the drawings and foregoing description, the same is to be considered illustrative and not restrictive in character, it being understood that only certain embodiments have been shown and described and that all changes, equivalents, and modifications that come within the scope of the disclosure described herein or defined by the following claims are desired to be protected. In reading the claims, words such as “a”, “an”, and “at least one” are not intended to limit the claims to only one item unless specifically stated to the contrary.
This application claims the benefit of U.S. Provisional Application No. 61/061,742, filed Jun. 16, 2008, which is hereby incorporated by reference.
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61061742 | Jun 2008 | US |