Patent Application
20190142085
This application claims the benefit of India Patent Application No. 201711040388 filed on Nov. 13, 2017, the disclosure of which is herein incorporated by reference in its entirety.
This disclosure relates to electrical insulating sleeves worn by linemen and other users who work in proximity to power lines and other high power electrical equipment.
The current method for wearing electrical insulating sleeves consists of using either a rubber harness or set of straps with a choice of two buttons. This approach creates three main problem areas for the end user. The three main problem areas include adjustability, wear consistency and robustness.
Adjustability in the current designs are limited to a selected number of position changes that effectively raise or lower a sleeve on the arm. While this allows adjustability to various body builds, there is no means for fine tuning when other garments are being worn. Jackets, fall protection harnesses, etc. create a need for further adjustability.
Along with adjustability, the current designs do not stay in place as expected while being worn. The rubber sleeve harness and straps tend to ride up around the neck area during body and/or arm movements. This generates several rub points along with overall discomfort.
Lastly, the fasteners/buttons of the current designs generate a great deal of frustration for the end user. Some types of buttons are not robust and either break during use or separate from the harness/strap. End users frequently use auto body fasteners, electrical ties or similar to fasten sleeves to the harness/strap.
Sleeve usage is defined as secondary electrical protection according to ASTM. This means it is left to each individual utility to define whether they need to be used or not. Since the current offerings are not user friendly, many utilities shy away from using sleeves all together.
Fundamentally, the new sleeve harness concept disclosed herein utilizes a completely different approach to the current offering. The current sleeve harnesses or straps are stamped out of blanket material that would otherwise be scrap. Aside from moderate geometry, there are no body molding features or breathability. Also, the current fasteners/buttons do not withstand the rigors of daily use in the field.
One new sleeve harness concept disclosed herein moves away from a rubber stamped type offering to a fabric based offering. Contours and flexibility are built into the fabric harness to allow the harness to form a better shape with the end user. Unlike stamped designs, the addition of adjustable webbing straps can allow for fine adjustments of the harness to fit all users and around user worn garments or safety devices. Furthermore, a new robust fastener design disclosed herein guarantees everything is held in place and stays together during use.
The new sleeve harness and fasteners/buttons disclosed herein provide a fixed solution that self-centers on the users body. This is in contrast to the current offerings which allows the sleeves to move side-to-side on the body as well as roll on the shoulders during user movement. The new harness can better affix sleeves to a user set location on the shoulders. The quick snap lock/unlock feature can also allow the user to easily put on or take of the sleeve harness setup. This is in contrast to the current setup requires the user to pull the setup over the head.
The new harness is designed to be comfortable and user friendly. All design features that have been incorporated are intended to provide a fresh solution to the user. Since the harness is more comfortable and user friendly it can provide a positive incentive to help more users adopt sleeve usage.
In accordance with one feature of the invention, a harness is provided for securing a pair of electrical insulating sleeves to a user. The harness includes a pair of shoulder straps, each shoulder strap having a middle portion extending between opposite end portions, each middle portion including an array of fastener receiving openings, and each fastener receiving opening configured to receive a fastener for attaching an insulating sleeve. An adjustable chest strap is engaged with each of the opposite end portions of the shoulder straps and configured to extend around the torso of a user to secure the harness to a user. A shoulder adjustment strap extends between the shoulder strap to be located behind the neck of a user when the harness is worn by a user and configured to provide adjustment of the middle portions relative to each other.
As one feature, each of the fastener receiving openings is defined by a grommet.
In one feature, the fastener receiving openings in each shoulder strap are located to provide at least two different positions for securing an insulating sleeve to the shoulder strap.
According to one feature, a releasable buckle is fixed to opposite ends of the adjustable chest strap to allow the opposite ends to be selectively connected and disconnected.
As one feature, the adjustable chest strap includes a length of webbing.
In one feature, each of the opposite end portions includes a loop through which the adjustable chest strap extends.
According to one feature, the shoulder adjustment strap has a first end fixed to one of the shoulder straps and a second end fixed to the other shoulder strap.
As one feature, the shoulder adjustment strap includes third and fourth ends that are engaged with a strap adjuster.
In one feature, each shoulder strap is multi-layer construction.
According to one feature, each shoulder strap includes layer of foam sandwiched between two fabric layers.
As one feature, the layer of foam includes a closed cell foam.
In one feature, one of the fabric layers includes a mesh fabric.
In one feature, each middle portion has a first concave peripheral edge facing the other middle portion and a second concave peripheral edge facing away from the other middle portion when the harness is worn by a user.
According to one feature, each end portion of each shoulder strap has a convex peripheral edge and a concave peripheral edge facing in opposite directions.
As one feature, each shoulder strap has a convex peripheral edge adjacent the fastener receiving openings.
According to one feature, the harness includes four releasable fasteners, each fastener received in a corresponding one of the fastener receiving openings.
As one feature, each releasable fastener includes a base member and a clip member. Each base member has a base portion and a post extending from the base member. Each clip member has a relief that is configured for snap fit engagement with the post.
In one feature, each relief of each fastener includes a concave surface sized for snap fit engagement with a convex surface of the post of the base member of the fastener.
According to one feature, the convex surface of each post is defined by an annular groove located in an end portion of the post.
As one feature, each clip member has a slot that extends from an edge of the clip member to the relief.
It should be understood that this disclosure contemplates a harness including any combination of the above features and furthermore contemplates a harness including any one of the above features.
Other features and advantages will become apparent from a review of the entire specification, including the appended claims and drawings.
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The harness 10 further includes an adjustable chest strap 32 that is mounted to the opposite end portions 22 and 24 of each of the members 18 so as to extend horizontally around the middle portion (lower chest) of a user's torso 14 and to be tightened so as to secure the harness 10 to the user's torso 14. In the illustrated embodiment, a releasable buckle 34 is provided on the adjustable chest strap 32 and includes an integrated strap adjuster 36 that allows adjustments to the length of the strap 32 so that it can be tightened around the chest of a user 16. In this regard, in the illustrated embodiment, the releasable buckle 34 is in the form of a side release buckle 34 having a first part 38 of the buckle 34 fixed to an end 40 of the chest strap 32 and the other part 42 of the buckle 34 attached via the strap adjuster 36 to another end 44 of the strap 32. In the illustrated embodiment, loops 46 are provided on each of the end portions 22 and 24 of the shoulder straps 18, with the chest strap 32 slidably extending through each of the loops 46 to attach the chest strap 32 to the shoulder straps 18. The ability of the chest strap 32 to slide through the loops 46 allows for better adjustment and customization of the fit of the harness 10 to the torso 14. While any suitable construction and material may be used, in the illustrated embodiment, the chest strap 32 is provided in the form of a length of nylon webbing.
The harness 10 further includes an upper, shoulder adjustment strap 50 that is fixed to each of the shoulder straps 18 at a location that will extend across the back of the lower neck and upper shoulders of a user 16. In the illustrated embodiment, a suitable strap adjuster 52 is provided to adjust the length of strap 50. In this regard, the shoulder adjustment strap 50 has an end 54 fixed to one of the shoulder straps 18, such as by stitching or bonding, and another end 56 fixed to the other shoulder strap 18, again by any suitable means such as stitching or bonding. The shoulder adjustment strap 50 has another end 58 fixed to a loop in the strap adjuster 52, and another end 60 that is slidably received in the strap adjuster 52 to make adjustments in the length of the strap 50 in order to adjust the position of the middle portions 20 relative to each and to a user's neck and shoulders. Thus, it can be seen, that in the illustrated embodiment, the shoulder adjustment strap 50 is formed from two separate lengths of strapping that are engaged with the strap adjuster 52. While any suitable construction or material can be used for the shoulder adjustment strap 50, in the illustrated embodiment, the shoulder strap 50 is provided in the form of lengths of nylon webbing.
It should be understood that the grommets 30, the releasable buckle 34, the integrated strap adjuster 36, and the strap adjuster 52 can be of any suitable form and construction, many of which are known, and accordingly no limitation to a particular construction is intended unless expressly recited in an appended claim. In the illustrated embodiments, each of the components 30, 34, 36 and 52 are molded from a suitable plastic/polymer material.
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Once the harness 10 is assembled, the end user 16 can attach the insulating sleeves 12 to the harness 10 using the fasteners 28. The setup can then be worn and adjusted per end user preference. The end user 16 can use the setup while wearing gloves and sleeves for live work performed on electrical utility lines.
It should be understood that while the embodiment of the harness 10 shown and described herein has a particular configuration, this disclosure contemplates modifications and other forms for the harness 10. For example, while shoulder straps 18 having a contoured shape will be desirable in many applications, in some applications it may be advantageous for the shoulder straps 18 to not have a contoured outer perimeter 62 and/or to have a contoured outer perimeter 62 that is different from the specific contoured outer perimeter 62 illustrated in the drawings. As a further example, while the releasable buckle 34 will be desirable in many applications, in some applications it may be advantageous for the chest strap 32 to simply be provided with some means for length adjustment, without being provided with a releasable buckle. By way of further example, while specific forms of strap adjusters have been shown, and will be desirable in many applications, some applications may utilize other means for adjusting the lengths of the chest strap 32 and the shoulder adjustment strap 50. As yet another example, while the multi-layer construction of the illustrated shoulder straps 18 will be desirable in many applications, in some applications, a single layer construction for the straps 18 may be desirable, either in the form of a single layer of fabric or a single layer of any other suitable material. Similarly, in some applications, it may be desirable for the shoulder straps 18 to have more than the three illustrated layers 78-82, and/or for the layers 78-82 to be formed from different fabrics and materials than those specifically described. As yet a further example, while the illustrated fasteners 28 will be desirable in many applications, in some applications, other suitable types of fasteners may be desired for use with the harness 10. Furthermore, while the illustrated fasteners 28 are shown as having particular shapes and geometries, other shapes and geometries may be desirable in some applications, such as, for example, a non-cylindrical shape for any of the posts 100, the base surface 104 and the wall surface 106, and/or a non-rectangular shape for the base portion 98, and/or a central wall portion 108 that is not centered in the clip member 88 or that does not have a thickness that is less than the thickness of the remainder of the clip 88. Similarly, while in many applications it will be desirable for each of the openings 26 to be defined by a grommet 30, in some applications it may be desirable for the grommets to be eliminated and/or for other means to define the openings 26, such as by providing a stitched seam around the opening 26. As yet a further example, while attachment of the chest strap 32 to the shoulder straps 18 using the loops 46 will be advantageous in many applications, other suitable structure for attachment may be desirable depending upon the specific requirements of an application. Accordingly, it should be understood, that no limitation to a specific configuration or form is intended unless expressly recited in one of the appended claims.
| Number | Date | Country | Kind |
|---|---|---|---|
| 201711040388 | Nov 2017 | IN | national |
