PRY BAR HANDLE
20200298389 ยท 2020-09-24
Assignee
Inventors
Cpc classification
B25G1/102
PERFORMING OPERATIONS; TRANSPORTING
B25G1/10
PERFORMING OPERATIONS; TRANSPORTING
B25F1/00
PERFORMING OPERATIONS; TRANSPORTING
E04G2023/085
FIXED CONSTRUCTIONS
International classification
B25G1/10
PERFORMING OPERATIONS; TRANSPORTING
Abstract
A pry bar has a transversely disposed generally triangular cross-section handle grip portion having surfaces formed of a soft elastomeric over-molded material. The handle is formed with an inner hard thermoplastic core and molded over outer elastomeric cover. A metal tether receiving element and impact cap are fixedly secured at the handle proximate end.
Claims
1. A plurality of pry bars comprising: a first pry bar comprising a handle having a first length and comprising a first plurality of spacedly disposed recessed grip elements; and a second pry bar comprising a handle having a second length and comprising a second plurality of spacedly disposed recessed grip elements, wherein the number of grip elements in each plurality is greater in the handle of greater length, and wherein; each handle having a distal end, a proximate end and a grip portion disposed between the ends, each grip portion comprises an upper surface, a lower surface and outwardly disposed curved side surfaces, said grip portion in transversely disposed sectional view comprises a generally triangular cross-section, said upper surface defining one side and the outwardly disposed side surfaces defining two sides of the generally triangular cross-section: each handle further comprises an inner thermoplastic core and an outer integrally bonded elastomeric material; said elastomeric material being disposed on the grip portion thermoplastic core; and a longitudinally extending bore disposed in said thermoplastic core; a blade disposed in said bore, said blade having a proximate end and a distal end; said blade distal end comprises a tapered pry end; and said blade distal end and pry end being in angular disposition with the blade proximate end.
2. The plurality of pry bars of claim 1, each grip element is disposed on the lower surface and extends upwardly in the outwardly disposed curved side surfaces.
3. The plurality of pry bars of claim 2, each grip element comprises a combination comprising said thermoplastic core and a peripheral outwardly disposed portion comprising said elastomeric material.
4. The plurality of pry bars of claim 1, wherein at least one triangular cross-section comprises a lower surface comprising an apex of the triangle.
5. The plurality of pry bars of claim 4, wherein sectional view the pry bar blade is disposed more adjacent the apex than the upper surface in a portion of the grip surface adjacent the proximate end of the handle.
6. The plurality of pry bars of claim 1, wherein each handle comprises a centerline and each respective pry bar blade comprises a centerline, and wherein the respective centerlines are spacedly disposed in sectional view.
7. The plurality of pry bars of claim 6, each handle comprises a metal impact cap fixedly disposed at the proximate end.
8. The plurality of pry bars of claim 7, each impact cap comprises a plurality of radially disposed prongs grippingly engaging the handle thermoplastic core.
9. The plurality of pry bars of claim 4, said lower surface comprises a larger degree of curvature than the upper surface and further comprises the apex of the triangle.
10. The plurality of pry bars of claim 9, wherein each handle comprises a centerline and each respective pry bar blade comprises a centerline, and wherein the respective centerlines are spacedly deposed in sectional view.
11. The plurality of pry bars of claim 10, each handle comprises a metal impact cap fixedly disposed at the proximate end, and each impact cap comprises a plurality of radially disposed prongs grippingly engaging the handle thermoplastic core.
12. The plurality of pry bars of claim 1, each triangular cross-section comprises a lower curved surface having a curvature greater than the other surfaces that comprise the triangular cross-section, wherein said lower curved surface comprises an apex of the respective triangle.
13. The plurality of pry bars of claim 12, each plurality of grip elements is disposed adjacent a respective apex.
14. The plurality of pry bars of claim 13, said upper surface being upwardly curved.
15. The plurality of pry bars of claim 14, each said pry end is disposed upwardly from the upwardly curved upper surface.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
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DESCRIPTION OF THE PREFERRED EMBODIMENT
[0031] Referring to
[0032] A metal impact cap 50 is fixedly disposed or molded into the distal end of the handle 11. Cap 50 is secured within the handle core 17 by means well known in the thermoplastic molding art. Cap 50 is used, by way of example, to impact screw heads prior to driving same. The proximate end of core 17 is cooperatively formed with a serrated hole 92 for fixedly securing serrated portion 93 of metal cap 50 in the handle proximate end.
[0033] Blade distal end 16 is formed with a pry end 53. Pry end 53 has outwardly tapered sides 54, and upper and lower surfaces 56 and 57. Surfaces 56 and 57 are tapered and extend towards sharpened edge or tip 58. Tip 58 is upwardly angularly disposed with respect to shank 12.
[0034] The elastomeric material cover 18 does not cover the entire core 17. Elastomeric material cover 18 is molded over hard thermoplastic core 17 peripherally in the triangular sectional shaped handle grip portion 95. Generally triangularly shaped cross-section grip portion 95 is formed of the upper or top upwardly cured first surface 81, and outwardly curved side surfaces 82 and 33, with bottom curved portion or apex 84 (
[0035] A series of four transversely disposed oval recesses 88 (typical) are formed at the bottom curved portion 84 and extend upwardly along the sides of over-molded elastomeric grip portion 85. The oval elastomeric recesses 88 extending upwardly from apex 84 and provide improved finger gripping functionality. Three to four elastomeric grip oval finger receiving recesses are provided commensurate with the length of the handle.
[0036] A series of parallel ridged elements 89 is formed in the upper exposed hand thermoplastic core to provide a thumb receiving and holding recess, in combination with the finger receiving oval recesses 88, for improved ergonomic grip.
[0037] A metal tang 71 with tether hole 72 is fixedly disposed between metal impact cap 50 and handle planar proximate end 13.
[0038] Handle 11 is formed with centerline 61, and metal impact cap is formed with axis or centerline 62. As best shown in
[0039] Referring to
[0040] Referring to
[0041] Referring to
[0042] As demonstrated in the FIGS., the vertical spatial disposition between the handle centerline and the end cap centerline or axis is commensurately proportioned to the length of the handle. This end cap and grip portion disposition, and in further combination with the generally triangular grip portion, provides improved grip functionally in both the pry bar and end cap operational modes.
[0043] The upper curved surfaces of handles 11, 111, 211 and 311 are shown with intermittent exposures of the thermoplastic core to provide in situ permanently legible trademarks and logos MAYHEW and DOMINATOR. This construction prevents the wearing away or distortion of imprinted prior art markings or trademarks as is common in prior art constructions.
[0044] In the aforesaid manner of construction, the user grips the outwardly disposed thermoplastic portion and the upper elastomeric triangles contoured portion and places the thumb on one of the distally disposed ridged surfaces for an ergonomic grip.
[0045] The core may be molded of hard thermoplastic using and the cover may be molded of with elastomeric material by well-known molding methods.
[0046] The afore-described handle surfaces and contours, and in conjunction with the pry bar configuration and disposition with respect to the handle, provide an ergonomic pry bar.
[0047] While the foregoing describes certain embodiments of the invention, various modifications and changes may be made within the spirit and scope of the invention, as defined by the adjoined claims.