Handling: hand and hoist-line implements – Hand bars and hand barrows – Opposing jaws
Reexamination Certificate
2000-08-23
2001-08-07
Kramer, Dean J. (Department: 3652)
Handling: hand and hoist-line implements
Hand bars and hand barrows
Opposing jaws
C016S422000, C016S431000, C016SDIG001, C030S340000, C081S177100
Reexamination Certificate
active
06270134
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to dual layered hand grip coverings and a link for hand tool, and more particularly, to dual layered hand grip coverings made of synthetic rubber by ejection molding and a link universally applicable to all hand tools.
2. Description of the Prior Art
A popularly used hand tool, for example, a pliers, is made of metallic material having a pair of symmetrical tool shanks hinged together at an appropriate position thereby forming a pair of tool sections at upper half parts and a pair of hand grips at lower half parts, and is able to clip or clamp an object between the two tool section by applying a compressive force between two hand grips with respect to the hinged point as a fulcrum by an operator's hand.
However, a hand tool constructed as such is apt to cause an accident when it slips unexpectedly out of the operator's palm, in addition, a hand tool made of hard metallic material brings uncomfortable feeling to the operator's hand. In order to eliminate above mentioned shortcomings, hand grips of a conventional hand tool are enclosed with a layer of either hard or soft covering made of plastic or rubber materials. However, in the case that such a covering is made of a hard material, the feeling of the operator's hand is uncomfortable in spite of the fact that hard covering is able to fit tightly as a globe to the hand grip. On the contrary, in the case that covering is made of a soft material, the operator's feeling may be better at the price of sudden slipping away of the covering as it can not fit tightly and securely to the metal hand grip.
SUMMARY OF THE INVENTION
Aiming at the above depicted defects, the present invention is to propose a newly developed construction for coverings for the grips of a hand tool.
Accordingly, it is a first object of the present invention to provide a link for the hand tool with which to shackle two shanks of the hand tool together so that the hand tool can be conveniently put aside when it is not in use.
It is a second object of the present invention to provide dual layered hand grip covering which can be used securely and comfortably with double colored, distinct identification marking yet preferable visual feeling.
The above mentioned objects can be achieved by a hand tool provide with a link and dual layered synthetic rubber hand grip coverings of the present invention comprising a tool body composed of two symmetrical tool shanks hinged together each further divided into two parts, e.g., a tool section above the hinge, and a hand grip below the hinge; two layers of ejection molded synthetic rubber coverings for each hand grip, the inner one is made of a hard material, while the outer one is made of a soft material, the inner covering is clad in the outer covering directly at the time ejection mold process is carried out; and a link with its one end hinged to the inner covering of one hand grip, and its other end hinged to the inner covering of the opposite hand grip. The two coverings are formed of differently colored materials so that purposely exposed portions of the inner layer exhibit a strong color contrast with the outer layer.
REFERENCES:
patent: 486560 (1892-11-01), Dinkel
patent: 1503536 (1924-08-01), Klauke
patent: 2520808 (1950-08-01), Miller
patent: 4308762 (1982-01-01), Jannard
patent: 4829858 (1989-05-01), Kern et al.
patent: 5027511 (1991-07-01), Miller
patent: 5253557 (1993-10-01), Dolak
patent: 5591176 (1997-01-01), Henderson et al.
patent: 5809853 (1998-09-01), Hudson
patent: 6044734 (2000-04-01), Sellers et al.
patent: 6134994 (2000-10-01), Gomas
patent: 2935806 (1981-04-01), None
Chin Paul T.
Freiburger Thomas M.
Huey-Yea Lin
Kramer Dean J.
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