Shoulder protection device for use when carrying a ladder

Information

  • Patent Grant
  • 6685069
  • Patent Number
    6,685,069
  • Date Filed
    Tuesday, June 5, 2001
    23 years ago
  • Date Issued
    Tuesday, February 3, 2004
    21 years ago
  • Inventors
  • Examiners
    • Cronin; Stephen K.
    Agents
    • Bryan Cave LLP
Abstract
A shoulder protection device for carrying a ladder on the shoulder of a carrier. The protection device includes a resilient cushion having at least one slot extending therethrough and at least one releasable strap extending through the slot. The releasable strap may be wrapped around the ladder to secure the resilient cushion in place such that the resilient cushion is in contact with the shoulder of the carrier.
Description




FIELD OF THE INVENTION




The present invention relates generally to protective equipment and, more particularly, to a shoulder protection device for use when carrying a ladder.




BACKGROUND OF THE INVENTION




Ladders are heavily used in certain industries such as in construction and related trades. On certain construction sites, a person may be required to frequently carry the ladder from one location to the next, such as from a vehicle onto the construction site, or from place to place within the construction site. It is desirable to allow the carrier to transport the ladder in comfort and without injury. This may be difficult, especially with large extension or step ladders which, although formed from relatively light weight materials, nonetheless exert significant weight and pressure on the carrier's shoulder or collar bone and surrounding tissues and muscles. The weight of the ladder and the portions of the ladder which rest on the carrier's shoulder may cause discomfort and injury, especially if the ladder is large or must be transported over long distances.




When a person transports a ladder (e.g., a folding fiberglass or aluminum step ladder) from place to place, the person typically orients the ladder horizontally, puts an arm through the space between two of the ladder's rungs, and balances the ladder on his shoulder. Depending on the size and configuration of the ladder, it may be difficult to adequately balance the ladder and transport it without the risk of the ladder accidentally sliding on the carrier's shoulder.




A need exists, therefore, for a shoulder protection device that can be removably attached to ladders for protecting one's shoulder when carrying a ladder over the shoulder. The shoulder protection device preferably would aid the carrier in transporting the ladder with as little strain and discomfort as possible.




SUMMARY OF THE INVENTION




The present invention includes a shoulder protection device for carrying a ladder on the shoulder of a carrier. The protection device includes a resilient cushion having at least one slot extending therethrough and at least one releasable strap extending through the slot. The releasable strap may be wrapped around the ladder to secure the resilient cushion in place such that the resilient cushion is in contact with the shoulder of the carrier. In one embodiment of the invention, the resilient cushion is formed from an upper portion and a lower portion such that the at one or more slots are formed between the upper and lower portions. The shoulder protection device is preferably shaped for use with a ladder that has a pair of U-shaped side rails with rungs therebetween. The resilient cushion (e.g., a foam cushion) is preferably sized to fit snugly within one of the U-shaped side rails. The releasable straps then wrap around the ladder to secure the resilient pad in place within the U-shaped channel of the ladder.











BRIEF DESCRIPTION OF THE DRAWINGS




These and other features, aspects, and advantages of the present invention will become better understood with regard to the following description, appended claims, and accompanying drawings wherein:





FIG. 1

is a prospective view of a shoulder protection device in accordance with the present invention; and





FIG. 2

is a prospective view of the shoulder protection device of

FIG. 1

shown attached to a conventional ladder.











These drawings are provided for illustrative purposes only and should not be used to unduly limit the scope of the present invention.




DETAILED DESCRIPTION OF THE INVENTION





FIG. 1

illustrates one embodiment of a shoulder protection device


10


in accordance with the present invention. The protection device


10


includes a resilient cushion


11


that may be generally rectangularly shaped and formed from a lightweight material having sufficient strength to support the weight of the ladder on the carrier's shoulder. The cushion


11


may be formed, for example, from a foam material such as a conventional closed cell foam. In one embodiment, the cushion


11


may be dipped covered in vinyl in order to protect the cushion


11


from environmental damage, heat, spills, etc. The cushion


11


may be contoured to provide a concave surface for engagement with the shoulder of a carrier. The cushion


11


is generally sized to fit snugly within a channel of a side rail of a ladder, as discussed below.




The resilient cushion


11


includes one or more slots


16


through which straps


18


may pass to secure the protection device


10


onto the ladder. In one embodiment, the resilient cushion


11


may be formed from two separate portions, namely, upper portion


12


and lower portion


14


attached together at seam


15


. The upper portion


12


and lower portion


14


may be attached using any number of means including gluing using a construction grade adhesive. The slots


16


may be formed in the two-piece cushion


11


as areas where the surfaces of the upper portion


12


and lower portion


14


are not adhered together. Alternatively, if the cushion


11


is formed from a single piece of material, the slots may be cut through the resilient cushion


11


. The straps


18


may fit snugly within the corresponding slots


16


. Alternatively, the straps


18


may be fixedly attached to the cushion


11


such that the straps do not slide within the slots


16


during use.




The shoulder protection device


10


preferably includes means to selectively attach and detach the device


10


from the frame of a ladder. The straps


18


may include releasable fasteners


20


,


22


, such as, for example separable hook and loop type fasteners (e.g., Velcro® brand fasteners) so that the protection device


10


can be readily installed and removed as desired and so that the shoulder protection device


10


may be used with ladders having various dimensions and configurations. Preferably, the shoulder protection device


10


includes two straps


18


that are spaced apart from one another to accommodate a pivotally mounted cross brace of the ladder. The straps


18


allow the carrier to mount the protection device


10


in a variety of different positions on the ladder according either to the form of the ladder or the preference of the carrier. The straps


18


also allow the protection device


10


to be detached from the ladder. Of course, the user may also desire to leave the protection device


10


attached to the ladder while the ladder is in use.





FIG. 2

illustrates a section of a side rail


28


of a typical aluminum step ladder


24


having a generally U-shaped cross-sectional configuration defining an inwardly facing channel


26


. The side rails


28


have rungs


30


attached between one rail


28


and a corresponding rail


28


on the other side of the ladder (not shown). The resilient cushion


11


is preferably sized to fit within the channel


26


and the straps


18


wrap around the side rails


28


to secure the resilient cushion


11


in place within the U-shaped channel


26


as illustrated in FIG.


2


. When disposed within the U-shaped channel


26


of the ladder


24


, the upper portion


12


of the resilient cushion


11


extends sufficiently above the surface of the ladder


24


to enable the cushion


11


to deflect upon loading without having the ladder impinge upon the carrier's shoulder.




Thus, the present invention includes a lightweight shoulder protection device that is easy to manufacture and which eases the effort necessary to transport the ladder by distributing the weight of the ladder over a larger area of the carrier's shoulder. The protection device


10


described herein may be used on ladders of a wide variety of different constructions and designs. Although the present invention has been described in considerable detail with reference to certain presently preferred embodiments thereof, other embodiments are possible without departing from the spirit and scope of the present invention. Therefore the appended claims should not be limited to the description of the preferred versions contained herein.



Claims
  • 1. A ladder comprising a pair of U-shaped side rails with rungs therebetween and a shoulder protection device attached to the ladder for carrying the ladder on a shoulder of a carrier, wherein the protection device comprises a resilient cushion sized to fit snugly within one of the U-shaped side rails and having at least one slot extending therethrough and at least one releasable strap extending through the at least one slot for wrapping around the ladder to secure the resilient cushion in place such that the resilient cushion is in contact with the shoulder of the carrier.
  • 2. The ladder of claim 1 wherein the strap is fixedly attached to the cushion such that the strap does not slide within the slot during use.
  • 3. The ladder of claim 2 wherein the resilient cushion comprises an upper portion and a lower portion, the at least one slot is formed between the upper and lower portions, and the upper portion of the resilient cushion extends sufficiently above the side rail to enable the cushion to deflect without having the rail impinge upon the carrier's shoulder.
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2385315 Vanasse Sep 1945 A
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D302748 Dubeck et al. Aug 1989 S
4858801 Sameniego Aug 1989 A
4887318 Weinreb Dec 1989 A
5058789 Piper Oct 1991 A
5207364 Johnson May 1993 A
5620234 Gunby Apr 1997 A
6189753 Perry Feb 2001 B1
6267280 Silagy Jul 2001 B1
6378746 Miller Apr 2002 B1