The present invention relates to a scraper that is used to scrape a paint or an attachment on the face of a workpiece.
A conventional scraper, as disclosed in U.S. Pat. No. 5,008,970, comprises a blade 1, a handle 2 and two covers 5. A plurality of holes 11 are formed in the rear end of the blade 1 so that the blade 1 and the front portion 22 of the handle 2 are rigidly molded together. The handle 2 substantially comprises a plate 20 and an outer perimeter wall 21 formed on an upper surface and a lower surface thereof. Two holes 23, 24 and an opening 25 are formed in the plate 20 in which the opening 25 in the rear end of the plate 20 is preferably larger in diameter than the two holes 23, 24. A perimeter recess 26 is formed in the upper and inner surface of each perimeter wall 21. The two covers 5 are substantially identical in shape and each has a shape corresponding to the recess 26 of the perimeter wall 21. The recess 26 and the covers 5 are arranged such that the covers 5 are rested in the recess 26 in order to form a smooth outer surface for the handle 2. Two retainers 52, 53 and a clamping device 54 are provided on the cover 5 and are arranged in accordance with the holes 23, 24 and the opening 25 of the plate 20 of the handle 2. However, the covers 5 are made of plastic material, so that the two retainers 52, 53 and the clamping device 54 easily become loosened due to rubbing during a long period of time. In addition, the front portion 22 of the handle 2 has two projections locked in the holes 11 of the blade 1. The handle 2 is made of plastic material, and the blade 1 is made of metal, so that the projections of the front portion 22 of the handle 2 are easily detached from the holes 11 of the blade 1 during a long period of time.
The present invention is to mitigate and/or obviate the disadvantage of the conventional scraper.
In accordance with the present invention, there is provided a scraper comprising two shells juxtaposed to each other, a blade combined with the two shells, and a connecting member combined with the two shells. Each of the two shells is made of metal and formed by stamping. Each of the two shells has a receiving space, a plurality of first soldering portions, a first opening and a first slot. The first opening is connected to the receiving space and has a second soldering portion. The first slot has a third soldering portion. The first soldering portions of the two shells are juxtaposed and combined together by soldering so that the two shells are combined integrally. The blade is made of material the same as that of each of the two shells and has an operation portion and a first mounting portion. The first mounting portion extends through the first opening into the receiving space and has a fourth soldering portion combined with the second soldering portions of the two shells by soldering. The connecting member is located in the receiving space and has a second slot aligning with the first slot. The connecting member has two ends each provided with a fifth soldering portion combined with the third soldering portion by soldering. The first soldering portions of the two shells are worked by polishing after the first soldering portions are soldered, and the two shells have a smooth face at the first soldering portions. The second soldering portions of the two shells and the fourth soldering portion of the blade are soldered and form two solders which are arranged on an intersection of the two shells and the blade.
Further benefits and advantages of the present invention will become apparent after a careful reading of the detailed description with appropriate reference to the accompanying drawings.
Referring to the drawings and initially to
Each of the two shells 10 is made of metal and formed by stamping. Each of the two shells 10 has a receiving space 11, a plurality of first soldering portions 111, a first opening 12 and a first slot 14. The first opening 12 is connected to the receiving space 11 and has a second soldering portion 13. The first slot 14 has a circular shape and has a third soldering portion 141. The first soldering portions 111 of the two shells 10 are juxtaposed and combined together by soldering so that the two shells 10 are combined integrally.
The blade 20 is made of material the same as that of each of the two shells 10 and has an operation portion 21 and a first mounting portion 22. The first mounting portion 22 extends through the first opening 12 into the receiving space 11 and has a fourth soldering portion 23 combined with the second soldering portions 13 of the two shells 10 by soldering.
The connecting member 30 is located in the receiving space 11 and has a second slot 31 aligning with the first slot 14. The connecting member 30 has two ends each provided with a fifth soldering portion 311 combined with the third soldering portion 141 by soldering. Preferably, the connecting member 30 has a cylindrical shape, and the second slot 31 is used for hanging.
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In another preferred embodiment of the present invention, the receiving space 11 of each of the two shells 10 has the maximum width and the maximum height relative to the first slot 14, so that the connecting member 30 is not movable in the receiving space 11, and the connecting member 30 and the two shells 10 do not need soldering.
In another preferred embodiment of the present invention, the at least one support member 50 has a receiving portion receiving the connecting member 30, so that the connecting member 30 is limited by the at least one support member 50 and is not movable in the receiving space 11, and the connecting member 30 and the two shells 10 do not need soldering.
In another preferred embodiment of the present invention, the connecting member 30 and the at least one support member 50 are formed integrally and are directly received in the receiving space 11.
In another preferred embodiment of the present invention, each of the two shells 10 has streaks to facilitate the user holding the two shells 10, and to enhance the appearance of the two shells 10.
Accordingly, the scraper has the following advantages.
1. The two shells 10 are combined to form a handle, and each of the two shells 10 is a thin shell, so that the scraper has a light weight.
2. The first soldering portions 111 are soldered so that the two shells 10 are combined integrally, and the soldering position of the two shells 10 is worked by polishing so that the two shells 10 have a smooth face and an enhanced appearance.
3. Each of the two shells 10 is made of metal and will not be contaminated by oil or dirt easily.
4. The at least one support member 50 is located in the receiving space 11 to enhance the strength of the two shells 10.
5. The at least one support member 50 has a second mounting portion 53 mounted with the first mounting portion 22, so that the two shells 10, the blade 20 and the at least one support member 50 have a better assembly structure.
6. The first receiving groove 61 of the receiving member 60 receives a hand tool, such as a nail puller or a screwdriver tip, so as to remove nails or screws on the wall.
Although the invention has been explained in relation to its preferred embodiment(s) as mentioned above, it is to be understood that many other possible modifications and variations can be made without departing from the scope of the present invention. It is, therefore, contemplated that the appended claim or claims will cover such modifications and variations that fall within the true scope of the invention.
Number | Name | Date | Kind |
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274318 | Hallstrom | Mar 1883 | A |
656757 | Hirsch | Aug 1900 | A |
2410572 | Echikson | Nov 1946 | A |
3018497 | Echikson | Jan 1962 | A |
Number | Date | Country | |
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20180333035 A1 | Nov 2018 | US |