Information
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Patent Grant
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6685069
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Patent Number
6,685,069
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Date Filed
Tuesday, June 5, 200123 years ago
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Date Issued
Tuesday, February 3, 200421 years ago
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Inventors
-
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Examiners
Agents
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CPC
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US Classifications
Field of Search
US
- 224 264
- 224 265
- 224 270
- 224 642
- 224 643
- 224 907
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International Classifications
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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.
US Referenced Citations (12)