1. Field of the System
The present invention relates to grips for hand railings or other hand support systems. More specifically, the present invention relates to grips which are releasably adhered to railings or other hand support systems.
2. Prior Art
Hand railings are in use throughout the world to assist in human activity such as standing, sitting down, ascending and descending a stairway, entering or exiting a moving vehicle, walking, etc. Maintaining a secure, comfortable grip is extremely important when operating or using various hand-held apparatuses or, more importantly, simply for safety purposes when grasping any type of railing. Bare railings are used for hand supports by users, standing, or sitting, or while entering or exiting a vehicle. Bare railings, whether they are constructed from any type of metal, plastic, wood, glass, concrete or composite material can be slippery, or coarse and inconvenient to hold onto with bare hands. Furthermore, uncovered railings located in moving vehicles such as subway train cars, light rail transit cars, transit buses, trams, street cars, trolley cars, recreational vehicles, etc., are unsafe when the vehicle is in motion and especially when turning. Typically, such railings are extruded shapes, such as a circular tube or another similar shape made for the human hand to grasp. Additionally, these railings are usually constructed from durable metal, such as stainless steel, but may also be constructed from wood or various other substances.
Such typical hand railings, however, do not provide a positive gripping surface, which would still further assist in the corresponding human activity associated with the hand railing. Some of the present gripping devices include molded plastic cylindrical grips which are installed and include cross-sectional sections designed to fit the human hand as in U.S. Pat. No. 5,584,096 to Auroura, rigid hand railings having a plurality of finger sized indentations, U.S. Pat. No. 5,190,267 to Schmitt, et al. and rail covering systems for outdoor decks as in U.S. Pat. No. 6,062,519 to Baldassarre. Still other gripping devices include removable foam grips that are wrapped around a bar each time a user wishes to use a bar as in U.S. Pat. No. 5,775,756 to Rozenich. This type of grip is typically used for weightlifting equipment. The grips to date involve either railings with built in grips or grips that are, for the most part, permanently attached to the railings, while other grips are not attached at all, rather they are easily removed and transferred from bar to bar.
To date, no grips have been designed which will conform to any railing surface or shape and which are releasably attachable to such railing surface. Hence, there is a need for a grip which will conform to any railing type and which will attach to any railing surface regardless of the type of surface or type of material used as the grip and a grip which is releasably attachable to the railing.
Further, to date no grips have been designed that have safety features incorporated into the grip, which will enable a user to use the grip to achieve safety even in the most detrimental conditions. Hence, there is a need for a grip which has textured surfaces to generate additional friction for gripping, some of which are readable to vision impaired persons, illuminated surfaces to guide the user to safety, sound emitting technology incorporated within the grip to guide the user to safety, and anti-bacterial agents to prevent the spread of disease.
The present invention is a method, system and device for providing a secure, resilient gripping surface on a railing or other hand support system. The grip of the present invention is designed to provide a secure, resilient gripping surface on any railing or hand support system surface that is grasped by a hand. The grip is preferably utilized on a railing or other hand support system. However, it is readily apparent that the grip could also be used on other structures, such as support poles and beams, etc.
In one aspect of the present invention, a flexible gripping pad is provided which is easily secured to a railing or hand support system by wrapping the grip around the railing or hand support system. The grip may fully cover the railing, or it may be artfully wrapped or it may be partially or fully folded. The grip of this invention will provide a comfortable, resilient gripping surface which will enhance the safety of a railing or hand support system by preventing slipping, hand abrasions or other dangers associated with railings or hand support systems.
In one aspect, the grip of the present invention comprises a skin layer having a top surface and a bottom surface, and a 4-way stretchable material layer having a top surface and a bottom surface. The top surface of the 4-way stretchable material layer is permanently adhered to the bottom surface of the skin layer. The bottom surface of the 4-way stretchable material layer is releasably attached to the railing or hand support system.
The skin layer may be formed from any material which will provide a safe and secure gripping surface. Some examples of possible skin materials include expanded vinyl, which is vinyl with a layer of foam that imparts a soft, textured feel, leather, plastic sheeting, plastic roll stock, any type of foam product, polyurethane, urethane, woven fabrics, rubber material and foil material. If a vinyl material is used, the vinyl may be supported or unsupported. Similarly, the 4-way stretchable material may comprise any material that can be simultaneously stretched in four directions, such as a polyester material.
In yet another aspect of the present invention, the skin layer of the grip of the present invention has a luminescent quality. The luminescent skin layer glows in the dark to provide additional safety in cases of an emergency.
In another embodiment, the grip of the present invention comprises a skin layer having a top surface and a bottom surface, and a backing layer having a top surface and a bottom surface. The top surface of the backing layer is permanently adhered to the bottom surface of the skin layer. Furthermore, the backing layer is permanently attached to a 4-way stretchable material layer with a stretchable top surface and a stretchable bottom surface. The bottom surface of the 4-way stretchable material layer is releasably attached to the railing or hand support system.
The grip of the present invention may have tapered edges on its lengthwise sides so that when the grip is spirally wrapped around a railing or other hand support system and the edges overlap, the thickness of the grip remains constant. As an alternative to wrapping the grip such that the edges overlap, the grip may be wrapped so that the edges do not overlap, thus providing additional friction for the user.
One method of manufacturing the grip of the present invention comprises providing a skin layer which has a top surface for gripping and a bottom surface to which a permanent adhesive applied. Next, a 4-way stretchable material that has a top surface and a bottom surface is permanently attached to the bottom surface of the skin layer. Finally, the bottom surface of the 4-way stretchable material is releasably adhered to the railing.
Another method of manufacturing the grip of the present invention comprises providing a skin layer which has a top surface for gripping and a bottom surface to which a permanent adhesive is applied. Next, a backing layer is provided, which has a top surface and a bottom surface. The top surface of the backing layer is adhered to the bottom surface of the skin layer. Next, a 4-way stretchable material layer with a top surface and a bottom surface is permanently attached to the backing layer by adhering the backing layer bottom surface to the 4-way stretchable layer top surface. Finally, the 4-way stretchable material is releasably adhered to the railing.
The system of the present invention is designed for providing a secure, safe, releasably attachable grip on a railing. The system comprises a grip having a 4-way stretchable layer with an inner surface and an outer surface and a skin layer with an inner surface and an outer surface, the inner surface of the skin layer is adhered to the outer surface of the 4-way stretchable layer. The inner surface of the 4-way stretchable layer is releasably adhered to the railing.
Another system of the present invention is also designed for providing a secure, safe, releasably attachable grip on a railing. The system comprises a grip having a backing layer with an inner surface and an outer surface and a skin layer with an inner surface and an outer surface, the inner surface of the skin layer is adhered to the outer surface of the backing layer. The bottom surface of the backing layer is permanently adhered to a 4-way stretchable layer with an inner surface and an outer surface. The inner surface of the 4-way stretchable layer is releasably adhered to the railing.
As set forth above, the grip of the present invention may have tapered edges on its lengthwise sides so that when the grip is wrapped around a railing or other hand support system and the edges overlap, the thickness of the grip remains constant. As an alternative to wrapping the grip such that the edges overlap, the grip may be wrapped so that the edges do not overlap, thus providing additional friction for the user.
One method of placing the grip of the present invention on the railing comprises providing a railing and wrapping the tapered edge grip of the present invention spirally around the railing such that the tapered edges of the grip overlap. The length of the railing may be fully covered by the grip such that the thickness of the grip remains constant or, in the alternative, the edges may not overlap to provide additional friction for the user.
Another method of placing the grip of the present invention on a railing comprises providing a railing having a length and alignment targets in a parallel line along its length. Next, placing the grip so that the center lengthwise axis of the grip is centered on the axis parallel to the length of the railing. The grip of the present invention has alignment targets disposed along an axis parallel to the lengthwise edge of the grip and the grip folds around the railing such that the alignment targets of the grip align with the alignment targets of the railing and the edges of the grip abut when folded around the railing.
The grip of this invention will provide a positive gripping surface for any type of railing using any type of material as a grip and provide a safe, uniform gripping surface for the length of the railing's surface. Moreover, there is a need for a method of manufacturing for grips and a system for providing grips which are releasably adhered to a railing or hand support system. Finally, there is a need for a method of placing the grip of the present invention on to a railing or other hand support system.
a-7c show a method or procedure for manufacture of the grip of FIG. 1.
a-8e show a method or procedure for manufacture of the grip of FIG. 4.
FIG. 13A and
Four-way stretchable layer 112 has top surface 110 and a bottom surface 114, such that top surface 110 of 4-way stretchable layer 112 conforms to and is permanently affixed to bottom surface 106 of skin layer 104. 4-way stretchable layer 112 may be comprised of any material that can simultaneously stretch in four directions such as a polyester material. Bottom surface 114 of 4-way stretchable layer 112 is releasably attached to the railing or hand support system by a layer of releasable adhesive 116. Releasable adhesive 116 completely covers from edge to edge and is affixed to 4-way stretchable layer 112 and provides releasable adhesion to the railing or hand support system. Releasable adhesive 116 provides secure adhesion to the railing or hand support system but may be removed with a minimal amount of effort by peeling grip 100 off the railing or hand support system. Any adhesive having the characteristics of being secured to the railing as well as being easily removed can be utilized; a preferred example of a releasable adhesive is FLEXCON® V-58.
Skin layer 104 has a bottom surface 106 which is affixed to the top surface 110 of 4-way stretchable material layer 112 by a permanent adhesive 108 that completely covers skin layer 104 from edge to edge. The permanent adhesive 108 can be any permanent adhesive known in the art, which will permanently bond skin layer 104 to 4-way stretchable material layer 112. An example of such a permanent adhesive is FLEXCON® adhesive V-402. However, it will be clear to one skilled in the art that other similar sitable adhesives may be used.
In one embodiment of grip 100 disclosed in
Backing layer 212 has a top surface 210 and a bottom surface 214, such that top surface 210 of backing layer 212 conforms to and is affixed to bottom surface 206 of skin layer 204. Backing layer 212 may be comprised of any material suitable for providing support including open cell foam, closed cell foam, felt, paper or rubber. Bottom surface 214 of backing layer 212 is permanently adhered to the top surface 218 of 4-way stretchable material 220. The permanent adhesive attaching bottom surface 214 of backing layer 212 to top surface 218 of 4-way stretchable material 220 can be any permanent adhesive known in the art which will permanently bond the surfaces an example of which is FLEXCON® V-402. Four-way stretchable material 220 has the ability to stretch in all directions simultaneously. An example of a 4-way stretchable material is a polyester material. Bottom surface 222 of 4-way stretchable layer 220 is releasably attached to the railing or hand support system by releasable adhesive 224. Releasable adhesive 224 is affixed to and completely covers 4-way stretchable material 220 from edge to edge and provides releasable adhesion to the railing or hand support system. Releasable adhesive 224 provides secure adhesion to the railing or hand support system. but may be removed with a minimal amount of effort by peeling grip 200 off the railing or hand support system. Any adhesive having the characteristics of being secured to the railing as well as being easily removed can be utilized; a preferred example of a releasable adhesive is FLEXCON® V-58.
Skin layer 204 has a bottom surface 206 which is affixed to top surface 210 of backing layer 212 by a permanent adhesive 208 which completely covers bottom surface 214 backing layer 212 from edge to edge. The permanent adhesive 208 can be any permanent adhesive known in the art, which will permanently bond skin layer 204 to backing layer 212. An example of such a permanent adhesive is FLEXCON® adhesive V-402. However, it will be clear to one skilled in the art that other similar suitable adhesives may be used.
In one embodiment of grip 200 disclosed in
In one embodiment of the method of manufacture of grip 100 disclosed in
a-7c disclose a method or procedure for manufacture of grip 100. For convenience, the component parts of grip 100 are numbered as in
a-8e discloses a method or procedure for manufacture of grip 200. For convenience, the component parts of grip 200 are numbered as in
In one embodiment of the method of manufacture of grip 200 disclosed in
In another method of wrapping,
FIG. 13A and
An additional property of the textured grip is insulation effect. The thickness of the textured surface 802 acts as a natural insulator. This property makes the railing usable in extremely hot or cold weather conditions. In addition, fire retardants such as bromine based retardants, phosphate based retardants, or Tetrabromobisphenol A (TBBPA) epoxy can be added to the textured surface making the grip 800 fire resistant and safer for human use.
This application is a continuation-in-art of U.S. patent application Ser. No. 09/874,940, filed Jun. 4, 2001.
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Number | Date | Country | |
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Parent | 09874940 | Jun 2001 | US |
Child | 10145566 | US |