The present invention relates generally to handles, and more particularly to handles that are pliable.
Handles of devices, such as umbrellas, canes, walking sticks, sports equipment, garden equipment, tools, kitchen tools, cleaning equipment, writing instruments, beauty equipment, etc., have been known for many years. Users are often required to grip such handles for an extended period of time leading to discomfort.
Umbrellas, for example, which are used for protection from elements such as rain and sun, generally consist of a collapsible canopy mounted on one end of a central rod and a handle mounted on the other end. During inclement weather especially, users tend to grip the handle tightly. The stiff, rigid handle promotes finger fatigue. Also, plastic handles tend to become slippery when wet, and the user might lose grasp of the handle. And in high winds, this could lead to loss of the umbrella.
Other types of handles also suffer from similar problems of causing finger fatigue and becoming slippery when wet. It is therefore desirable to overcome the above disadvantages by providing a handle that will reduce hand fatigue and provide a more comfortable, secure grip.
A pliable handle for a hand-held device is provided. The handle includes a core member, an outer sheath disposed about the core member, and gel disposed between the core member and the outer sheath. The outer sheath is deformable, such that when a hand grips the pliable handle, the force applied causes the pliable handle to deform and conform to the shape of the hand, and the applied force causes load movement of the gel.
Further aspects and features of the exemplary apparatus disclosed herein can be appreciated from the appended Figures and accompanying written description.
The invention will be more fully understood by reference to the following drawings which are for illustrative purposes only:
One exemplary core member 110 is formed in a substantially cylindrical shape (but can be any other suitable shape) with proximal and distal threaded portions 111, 112 formed on an outer surface of proximal and distal ends, respectively. Proximal and distal annular flanges 113, 114, which partially define a gel-containing portion 115 therebetween, are provided on the outer surface of the core member 110 at a location slightly inward along the longitudinal axis of the core member 110 from the respective proximal and distal threaded portions 111, 112. The diameters of the proximal and distal annular flanges 113, 114 can be the same or different, depending on the desired shape of the pliable handle 100. A gel-directing through bore 116 is formed through the core member 110 at a position closer to the distal threaded portion 112 than the proximal threaded portion 111, and the longitudinal axis of the gel-directing through bore 116 is substantially perpendicular to the longitudinal axis of the core member 110. In other words, the gel-directing through bore 116 is formed proximate the distal annular flange 114 and within the gel-containing portion 115. It is appreciated by those skilled in the art that the position and size of the gel-directing through bore 116 may be modified provided that the modification results in a gel-directing through bore suitable for the intended purpose. A threaded bore 117 is formed in the proximal end of the core member 110 and is designed to threadingly mate with the pole 150 or other device to which the pliable handle of the present invention may be attached. Alternatively, the handle 100 may be designed to be attached to the pole 150 or other device by any other suitable attaching means, such as rivets, adhesive, tension fit, etc.
Referring again to
The outer sheath 120 is substantially cylindrical in shape and has at its ends a proximal shoulder 121 and a distal shoulder 122, respectively, which may or may not be flanged. The diameter of each of the proximal and distal shoulders 121, 122 corresponds with the diameter of the respective proximal and distal annular flanges 113, 114 of the core member 110, such that when the pliable handle 100 is assembled, the proximal and distal shoulders 121, 122 form gel seals with the proximal and distal annular flanges 113, 114, respectively, due to the intimate fit between these members. Finally, proximal and distal annular lips (rings) 123, 124 define holes provided at the proximal and distal ends, respectively, of the outer sheath 120. When the pliable handle 100 is assembled, the proximal and distal threaded portions 111, 112 of the core member 110 project through the holes defined by the annular lips 123, 124, respectively.
In one preferred embodiment, the outer sheath 120 is formed of vulcanized silicone. Alternatively, the outer sheath 120 may be formed of any other deformable material suitable for the intended purpose. The sheath 120 has a thickness that is great enough to resist breakage, but thin enough to be pliable and readily deformable under the normal handling of a user. Also, the sheath 120 may be colorless, or alternatively may be formed of any of a number of different colors, including a solid color or a multicolored pattern. The sheath 120 may also be transparent or alternatively, opaque. Moreover, the sheath 120 can contain a decorative pattern or other indicia, such as a company logo.
Distal end cap 140 is circular in shape and has an outer diameter that is substantially similar to the diameter of the shoulder 122 of the distal end portion of the outer sheath 120. The bottom end cap 140 has an open end and a closed end. Formed in the open end is a threaded bore 141 designed to secure the cap 140 to the distal threaded portion 112 of the core member 110.
Proximal end cap 130 is circular in shape and has two open ends. The proximal open end of the cap 130 has a shoulder 131. An annular lip 132, which has a diameter that is smaller than that of the shoulder 131, defines a hole and is located concentric with the shoulder 131. The diameter of the distal end of the proximal end cap 130 is larger than the diameter of the proximal end, and is substantially similar to the diameter of the proximal shoulder 121 of the outer sheath 120. Formed in the inner circumference of the distal open end of the proximal end cap 130 are threaded bores 131 designed to secure the cap 130 to the proximal threaded portion 111 of the core member 110.
After assembly, the pliable handle 100 can be secured to a device, such as pole 150 having a threaded end 151. The threaded end 151 is passed through the proximal end cap 130 hole defined by the annular lip 132 and through the outer sheath 120 hole defined by the proximal annular lip 123, and then the threaded end 151 of the pole 150 is screwed into the threaded bore 117 formed in the proximal end of the core member 110.
The distal end cap 140 and proximal end cap 130 may be modified in shape, color, or size, provided that the caps are suitable for their intended purpose. The caps 140, 130 may be made of ABS plastic or any other suitable material. Also, the caps 140, 130 may be colorless, or alternatively may be formed of any of a number of different colors, including a solid color or a multicolored pattern. The caps 140, 130 may also be transparent or alternatively, opaque. It should also be noted that the components of the handle may be modified such that the caps 140, 130 are secured to the handle by a means other than screwing.
One exemplary method for assembling the pliable handle 100 will now be described with reference to
During assembly, the outer sheath 120 is placed over the core member 110 such that the proximal and distal threaded portions 111, 112 of the core member 110 project through the holes defined by the annular lips 123, 124, respectively of the outer sheath 120. Gel seals are formed by the proximal and distal shoulders 121, 122 of the outer sheath 120 coupling with the respective shoulders 113, 114 of the core member 110. The gel-containing portion 115 is thereby defined at its ends by the proximal and distal annular flanges 113, 114 of the core member 110, and at its longitudinal faces by the base of the core member 110 and the outer sheath 120.
After the outer sheath 120 is placed over the core member 110, gel 700 is injected through the gel injection bore 118 of the core member 110 using an injection nozzle 600. The gel 700 travels through the gel injection bore 118 until it is forced through the gel-directing through bore 116 in a direction perpendicular to its original traveling direction and then into the gel-containing portion 115 so that the gel 700 is uniformly disposed about the core member 110. When the gel-containing portion 115 is filled with gel 700, the injection nozzle 600 is removed and the proximal and distal end caps 130, 140 are secured to the proximal and distal threaded portions 111, 112 of the core member 110. That is, the proximal end cap 130 is secured to the proximal threaded portion of the 111 of the core member 110, and the distal end cap 140 is secured to the distal threaded portion 112 of the core member 110. Cap 140 seals the bore 118. Alternatively, a plug may be used to seal the bore 118. At this point the pliable handle 100 is completely assembled and ready to be secured to a device, such as the pole 150 of an umbrella, a handle of any one of a cane, walking stick, sports equipment (e.g., baseball bat, golf club, tennis racket, fishing rod, hockey stick, etc.), tool (e.g., screwdriver, hammer, etc.), garden equipment (e.g., shovel, rake, shears, etc.), kitchen tool (e.g., knife, pot, pan, can opener, etc.), cleaning equipment (e.g., broom, mop, etc.), writing instruments, beauty equipment (e.g., cosmetic applicators, curling irons, hair dryers, etc.), etc.
The gel 700 may be formed of silicone or any other suitable material. The gel 700 may be colorless, or alternatively may be formed of any of a number of different colors, including a solid color or a multicolored (e.g., speckled) pattern. The gel 700 may also be transparent or alternatively, opaque.
This exemplary core member 810 is formed in a substantially oval shape (and alternatively may be cylindrical or any other suitable shape) with proximal and distal threaded portions 811, 812 formed on an outer surface of proximal and distal ends, respectively. Proximal and distal annular flanges 813, 814, which partially define a gel-containing portion 815 therebetween, are provided on the outer surface of the core member 810 at a location slightly inward along the longitudinal axis of the core member 810 from the respective proximal and distal threaded portions 811, 812. Gel injection through bores 816a, 816b are formed through the proximal annular flange 813 on opposing sides of the flange 813 and such that the longitudinal axes of the gel injection through bores 816a, 816b are substantially parallel to the longitudinal axis of the core member 810. A threaded bore 817 is formed in the proximal end of the core member 810 and is designed to threadingly mate with the pole 150 or other device to which the pliable handle of the present invention may be attached.
An exemplary method for assembling the pliable handle 800 will now be described with reference to
During assembly, the outer sheath 120 is placed over the core member 810 such that the proximal and distal threaded portions 811, 812 of the core member 810 project through the holes defined by the annular lips 123, 124, respectively of the outer sheath 120. Gel seals are formed by the proximal and distal shoulders 121, 122 of the outer sheath 120 coupling with the respective shoulders 813, 814 of the core member 810. The gel-containing portion 815 is thereby defined at its ends by the proximal and distal annular flanges 813, 814 of the core member 810, and at its longitudinal faces by the base of the core member 810 and the outer sheath 120.
After the outer sheath 120 is placed over the core member 810, holes 125, 126 are pierced through the outer sheath 120 to correspond with gel injection through bores 816a, 816b, respectively. As shown in
Further, a loop (or wrist strap) 1320 may be provided on the closed end of the distal end cap 140. Alternatively, the loop 1320 may be secured to the proximal end cap 130, between the pole 150 and the proximal end cap 130, or any other position suitable for its intended purpose. This loop 1320 may be used for hanging the handle along with the device to which it is attached, or for securing the handle and corresponding device to a wrist. The loop 1320 may be made of plastic or any other suitable material.
One exemplary core member 1710 is formed in a substantially cylindrical shape (but can be any other suitable shape) with a distal dome-shaped portion 1713. An annular flange 1711, which with the dome-shaped portion 1713 partially defines a gel-containing portion 1714 therebetween, is provided on the outer surface of the core member 1710 at the proximal end of the core member 1710. Gel injection through bores 1712a, 1712b, which are similar to gel injection through bores 816a and 816b shown in
The outer sheath 1720 is provided over the core member 1710 such that the sheath is uniformly disposed about the core member 1710. Together the outer sheath 1720 and the core member 1710 define the gel-containing portion 1714 therebetween. That is, the gel-containing portion 1714 is defined at its ends by the annular flange 1711 and the dome-shaped portion 1713 of the core member 1710, and at its longitudinal faces by the base of the core member 1710 and the outer sheath 1720.
The outer sheath 1720 is substantially cylindrical in shape and has a proximal open end 1721 having a shoulder defining a hole 1723 and a distal closed end 1722. The diameter of the shoulder of the proximal open end 1721 corresponds with the diameter of the annular flange 1711 of the core member 1710, such that when the pliable handle 1700 is assembled, the shoulder at the proximal open end 1721 forms a gel seal with the annular flange 1711 due to the intimate fit between these members.
After assembly, the pliable handle 1700 can be secured to a device, such as pole portion 1730 having a threaded end 1733 and an annular flange 1732 provided on the outer surface of the pole 1731 of the pole portion 1730 at a location adjacent to the threaded end 1733. The diameter of the annular flange 1732 is preferably, but not necessarily, the same as the diameter of the annular flange 1711 of the core member 1710. The threaded end 1733 is screwed into the threaded bore (not shown) formed in the proximal end of the core member 1710.
As may be appreciated, the pliable handle may be formed of any of a number of different sizes and/or shapes, such as curved, straight, contoured, or tapered, so long as the pliable handle is suitable for its intended purpose.
Throughout the description the words “proximal” and “distal” have been used to describe components or portions of components. These words were used merely to aid the reader in an understanding of the invention and are not intended to be limiting.
While this invention has been particularly shown and described with references to preferred embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the invention encompassed by the appended claims.
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