US 4,721,021 AGranted

Handle structure

OwnerPhillip S. Kusznirinventor

Life of this patent

Estimating the term…

Loading patent…

Abstract

An improved handle structure for manually engagable, manually manipulated implements and devices such as hammers, saws, hand power tools and the like. The handle structure is an elongate structure adapted to be comfortably gripped in a hand of a user. The handle is resilient and yieldingly compressable within the grip of a user on a plane which is normally substantially parallel to the mean plane of the palm of a user's hand and which provides a non-static, shock absorbing grip structure. The handle structure is substantially rigid and non-yielding on that plane which is normal to said plane of the user's hand. The handle further includes a soft resilient fingertip supporting pad that conforms with and yieldingly supports the user's fingers and soft resilient palm engaging parts that yieldingly conform with the palm of the user's hand at primary force transmitting points between the palm and the handle structure and which provides for circulation of air therebetween. The handle structure provides for a non-static yet stable and secure grip between the user's hand and the implement or device with which the handle structure is related.

Claims5

Dependent claims

An improved handle structure for manually manipulated devices comprising an elongate vertically extending handle of flexible elastic material, the handle has upper and lower ends, a central longitudinal axis, a central vertical plane with opposite inner and outer sides and intersecting with said axis, oppositely disposed elongate front and rear edge portions extending parallel with the central axis and on planes normal to said central plane, oppositely disposed elongate inner and outer sides spaced laterally outward from the inner and outer sides of and substantially parallel with said central vertical plane, a plurality of longitudinally extending through slot openings with upper and lower ends spaced below and above said upper and lower ends of the handle, said slot openings are in spaced relationship between the front and rear edge portions on planes normal to said central vertical plane, said slot openings open at said inner and outer sides of the handle and define a plurality of elongate thin, flat, longitudinally extending parallel webs with upper and lower ends, said webs are substantially rectangular in cross section with their major cross sectional axes normal to and with their minor cross sectional axes parallel with said central vertical plane, said webs are strong and substantially non-yielding in advance of forces directed laterally onto and through the handle and are yieldingly flexible in advance of forces directed forwardly and rearwardly onto and through the handle between the upper and lower ends thereof, a flat finger-supporting pad of resilient yieldingly compressible synthetic, rubber-like material secured to and substantially co-extensive with said outer side of the handle, and elongate resilient yieldingly compressible flanges of synthetic, rubber-like material in said slot openings between said webs and yieldingly transmitting forces between said webs and dampening vibratory movement thereof, said flanges.

An improved handle structure for manually manipulated devices comprising an elongate vertically extending handle of flexible elastic material, the handle has upper and lower ends, a central longitudinal axis, a central vertical plane with opposite inner and outer sides and intersecting with said axis, oppositely disposed elongate front and rear edge portions extending parallel with the central axis and on planes normal to said central plane, oppositely disposed elongate inner and outer sides spaced laterally outward from the inner and outer sides of and substantially parallel with said central vertical plane, a plurality of longitudinally extending through slot openings with upper and lower ends spaced below and above said upper and lower ends of the handle, said slot openings are in spaced relationship between the front and rear edge portions on planes normal to said central vertical plane, said slot openings open at said inner and outer sides of the handle and define a plurality of elongate thin, flat, longitudinally extending parallel webs with upper and lower ends, said webs are substantially rectangular in cross section with their major cross sectional axes normal to and with their minor cross sectional axes parallel with said central vertical plane, said webs are strong and substantially non-yielding in advance of forces directed laterally onto and through the handle and are yieldingly flexible in advance of forces directed forwardly and rearwardly onto and through the handle between the upper and lower ends thereof, elongate resilient yieldingly compressible flanges of synthetic, rubber-like material within said slot openings and between said webs, said flanges yieldingly transmit forces between said webs and dampen vibratory movement thereof, said flanges have longitudinally extending laterally inwardly and laterally outwardly projecting edge portions projecting from said slot openings and from said inner and outer sides of the handle and defining hand engageable, cleat-like beads on said sides of the handle.

Dependencies are inferred from the claim text.