Mason's hand tool

Information

  • Patent Grant
  • RE38093
  • Patent Number
    RE38,093
  • Date Filed
    Wednesday, April 4, 2001
    24 years ago
  • Date Issued
    Tuesday, April 29, 2003
    22 years ago
  • US Classifications
    Field of Search
    • US
    • 030 169
    • 030 340
    • 030 342
    • 030 343
    • 030 344
    • 016 1101
    • 016 1111
    • 016 421
    • 016 436
    • 016 DIG 19
    • 015 1431
    • 015 23601
    • 015 DIG 10
    • 081 489
    • 081 492
  • International Classifications
    • B26B300
Abstract
A mason's hand tool includes a blade, a handle, and a head cap. The blade is fastened with one end of the handle. The handle has a head end opposite to the one end of the handle. The head cap is fastened with the hand end. The handle and the head cap are made integrally of a plastic material by injection molding. The head cap has a plurality of protruding which are anchored in the head end of the handle.
Description




FIELD OF THE INVENTION




The present invention relates generally to a hand tool, and more particularly to a mason's hand tool.




BACKGROUND OF THE INVENTION




As shown in

FIGS. 1 and 2

, a mason's hand tool of the prior art comprises a blade


10



, a handle



20



, and a head cap



25








30


. The handle


20



is made of a plastic material and is devoid of a skidproof surface enabling the hand of a person to get a firm grip on the handle



20



. The head cap



25








30


is fastened with the head end of the handle


20



by rivet or adhesive and is therefore vulnerable to being detached from the head end of the handle



20



especially at the time when the head cap



25








30


is used by a mason to hit a nail or screw that is not completely fastened onto something.




SUMMARY OF THE INVENTION




The primary objective of the present invention is therefore to provide an improved hand tool which is free from the drawbacks of the prior art hand tool described above.




In keeping with the principle of the present invention, the foregoing objective of the present invention is attained by a hand tool comprising a blade, a handle, and a head cap. The handle is provided with a skidproof surface to enable the hand of a person to get a firm grip on the handle. The handle and the head cap are made integrally of a rigid plastic material by injection molding.




The foregoing objective, features, functions, and advantages of the present invention will be more readily understood upon a thoughtful deliberation of the following detailed description of a preferred embodiment of the present invention with reference to the accompanying drawings.











BRIEF DESCRIPTION OF THE DRAWINGS





FIG. 1

shows a perspective view of a hand tool of the prior art.





FIG. 2

shows an exploded view of the hand tool of the prior art.





FIG. 3

shows a perspective view of a hand tool of the preferred embodiment of the present invention.





FIG. 4

shows a perspective view of an embodiment of a head cap of the hand tool of the present invention.





FIG. 5

shows a perspective view of another embodiment of a head cap of the hand tool of the present invention.





FIG. 6

shows a side view, partly sectioned, of the hand grip of the present invention having the head cap in FIG.


4


.





FIG. 7

shows a side view, partly sectioned, of another partial grip of the present invention having the head cap in FIG.


5








4



.












DETAILED DESCRIPTION OF THE EMBODIMENT




As shown in

FIG. 3

, a hand tool embodied in the present invention is composed of a blade


10


, a handle


20


, and a head cap


30


.




The handle


20


is fastened at one end thereof with the blade


10


which is used in spreading cement mortar or things of that nature. The cap


30


is fastened with the head end of the handle


20


. In the preferred embodiment of the present invention, the handle


20


and the head cap


30


are made integrally of a rigid plastic material by injection molding. The handle


20


is provided on the outer surface of the one end thereof with a skidproof area


12


providing friction to enable the thumb and the index finger to hold the skidproof area


12


securely.




In order to enhance the fastening of the head cap


30


with the head end of the handle


20


, the head cap


30


may be provided with a plurality of protrusions


31


each having a retaining head


32


which is greater in diameter than the protrusions


31


, as shown in FIG.


5


and FIG.


7


. The head cap


30


is thus securely attached to the handle


20


, best shown in

FIGS. 5 and 7

. Now referring to

FIG. 4

, and

FIG. 6

, in another embodiment of the invention, the head cap


30


is provided with a plurality of threaded holes


35


and bolts


33


which are engaged with the threaded holes


35


. Each bolt


33


has a head


34


which provides a similar function the retaining head


32


of FIG.


5


. The head cap


30


is thus securely fastened with the handle


20


, thanks to the protrusions


31


or the bolts


33


which are securely anchored in the head end of the handle


20


. The head cap


30


of the present invention is not vulnerable to being separated from the head end of the handle


20


even if the head cap


30


is used to hit a nail or screw that is not completely fastened onto something.




The embodiment of the present invention described above is to be regarded in all respects as being merely illustrative and not restrictive. Accordingly, the present invention may be embodied in other specific forms without deviating from the spirit thereof. The present invention is therefore to be limited only by the scope of the following appended claims.



Claims
  • 1. A hand tool comprising a blade, a handle, and a head cap, said blade being fastened with a first end of said handle, said handle having a head end opposite to said first end, said head cap being fastened with said head end; wherein said handle and said head cap are made integrally of a plastic material by injection molding; and wherein said head cap has a plurality of protrusions each having a retaining head, said protrusions being anchored in said head end of said handle.
  • 2. A hand tool comprising a blade, a handle, and a head cap, said blade being fastened with a first end of said handle, said handle having a head end opposite to said first end, said head cap being fastened with said head end; wherein said head cap is provided with a plurality of threaded holes and bolts which are engaged with said threaded holes; wherein said head cap and said handle are made integrally of a plastic material by injection molding; and wherein said bolts are anchored in said head end of said handle.
  • 3. The hand tool as defined in claim 1, wherein said handle is provided with a skidproof area at an outer surface of said handle to provide friction between said handle and a hand holding said handle.
  • 4. The hand tool as defined in claim 2, wherein said handle is provided with a skidproof area at an outer surface of said handle to provide friction between said handle and a hand holding said handle.
  • 5. A hand tool comprising, in combination: a handle having a first end and a second end; a blade attached to the first end of the handle; and a head cap fastened with the second end of the handle, the handle being made of a plastic material, the handle and the head cap being made integral by injection molding, and the head cap having at least one protrusion anchored in the second end of the handle, wherein said at least one protrusion includes a retaining head.
  • 6. The hand tool as defined in claim 5, wherein the handle and the head cap are made integrally of a plastic material by injection molding.
  • 7. The hand tool as defined in claim 5, wherein said handle is provided with a skidproof area at an outer surface of said handle to provide friction between said handle and a hand holding said handle.
  • 8. A hand tool comprising, in combination: a handle having a first end and a second end; a blade attached to the first end of the handle; and a head cap fastened with the second end of the handle, the handle being made of a plastic material, the handle and the head cap being made integral by injection molding, and the head cap having at least one protrusion anchored in the second end of the handle, wherein said at least one protrusion comprises at least one bolt securely attached to the head cap, and said at least one bolt being anchored in the second end of the handle.
  • 9. The hand tool as defined in claim 8, wherein the head cap includes at least one threaded hole for engaging with said at least one bolt.
  • 10. The hand tool as defined in claim 8, wherein the handle and the head cap are made integrally of a plastic material by injection molding.
  • 11. The hand tool as defined in claim 8, wherein said handle is provided with a skidproof area at an outer surface of said handle to provide friction between said handle and a hand holding said handle.
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Foreign Referenced Citations (4)
Number Date Country
825778 Dec 1951 DE
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422254 Jan 1935 GB
WO 8602849 May 1986 WO
Divisions (1)
Number Date Country
Parent 09/280705 Mar 1999 US
Child 09/825773 US
Reissues (1)
Number Date Country
Parent 09/280705 Mar 1999 US
Child 09/825773 US