TWI824987B - Scraper and method for manufacturing the same - Google Patents

Abstract

A scraper is provided, including a blade head and a blade body. The blade head has a first hardness. The blade head has a cutting portion and a first main body. The first main body is defined a first thickness along a thickness direction. The first main body is defined a first width along a width direction. The blade body has a second hardness. The blade body has a second main body. The blade body is connected with the first main body along a length direction. The second main body is defined a second thickness along the thickness direction. The second main body is defined a second width along the width direction. The first thickness is bigger than the second thickness to facilitate scraping. The first thickness is different from the second thickness. The first width is different from the second width. The first main body and the second main body are joined together through silver soldering.

Description

Scraper and its manufacturing method

The present invention relates to scrapers, and in particular to a scraper whose blade head and blade body adopt different hardnesses and a manufacturing method thereof.

The scraper is a professional tool used for scraping. It can perform precision machining on the surface of the workpiece, scrape off the remaining material or glue on the surface, and smooth the surface. For example, the scrapers disclosed in Taiwan patents I743694, M597539, and I674348 fall into this category.

However, the blades of this type of scraper only focus on sharpness and ignore the strength and safety of use. Therefore, the blades used in the above-mentioned scrapers are very easy to break and cannot scrape harder items. The objects used here are more susceptible to damage. Restricted.

Therefore, it is necessary to provide a novel and progressive scraper and a manufacturing method thereof to solve the above problems.

The main purpose of the present invention is to provide a scraper and a manufacturing method thereof, which can perform scraping operations with better structural strength and scraping angle.

In order to achieve the above object, the present invention provides a scraper, which includes: a blade head and a blade body. The cutter head defines a first hardness. The cutter head includes a blade portion and a first body. The blade portion extends along a length direction from one end of the first body. The blade portion includes two blade surfaces. The two blades The surface clamp is provided with an included angle, the first body defines a first thickness along a thickness direction, the first body defines a first width along a width direction, and the length direction, the thickness direction and the width direction are perpendicular to each other. The blade defines a second hardness. The blade includes a second body. The second body is connected to the other side of the first body along the length direction. The second body defines a second thickness along the thickness direction. The second body defines a second width along the width direction; wherein, the included angle is between 40 degrees and 75 degrees, the first hardness is greater than the second hardness, the first thickness is different from the second thickness, and the third A width is different from the second width; wherein the first body and the second body are joined together through silver welding.

In order to achieve the above object, the present invention also provides a method for manufacturing a scraper, which includes the following steps: providing a blade head, the blade head including a blade portion; providing a blade body; welding the blade head to the blade body; The tip of the blade is blunted so that the tip of the blade has a non-sharp angle shape.

The following examples are only used to illustrate possible implementations of the present invention, but they are not intended to limit the scope of protection of the present invention. The "one" or "at least one" before the nouns mentioned in the article do not limit the quantity. It can also be "plural" according to the requirements. This change in quantity is also the scope of the desired protection, which will be explained first.

Please refer to FIGS. 1 to 4 , which show an embodiment of the present invention. The scraper of the present invention includes: a blade head 1 and a blade body 2 .

The cutter head 1 is defined with a first hardness. The cutter head 1 includes a blade portion 11 and a first body 14. The blade portion 11 extends from one end of the first body 14 along a length direction 41. The blade portion 11 includes There are two blade surfaces 12, and an included angle 13 is formed between the two blade surfaces 12. The included angle 13 is preferably between 40 degrees and 75 degrees. For example, but not limited to, the included angle 13 is 60 degrees to facilitate insertion, embedding, etc. Action to perform scraping operations.

The first body 14 defines a first thickness along a thickness direction 42 , the first body 14 defines a first width along a width direction 43 , and the length direction 41 , the thickness direction 42 and the width direction 43 are perpendicular to each other. . The blade 2 defines a second hardness. The blade 2 includes a second body 21 . The second body 21 is connected to the other side of the first body 14 along the length direction 41 . The second body 21 is connected along the thickness direction. 42 defines a second thickness, and the second body 21 defines a second width along the width direction 43; wherein the first hardness is greater than the second hardness. For example but not limited to this embodiment, the first hardness ranges from HRA85 to HRA94, to ensure that the structure of the cutter head 1 can withstand more stress and is not easily broken during the scraping process. The first thickness is different from the second thickness, and the first width is different from the second width.

Preferably, the first thickness is greater than the second thickness. When the scraper is used for scraping operation, friction and collision between the blade 2 and surrounding objects can be avoided, ensuring the integrity of the blade 2; and, the first width Greater than the second width, the blade 1 has a wider structure. When the scraper scrapes forward, the scraped material will expand outward without touching the blade 2 or the user. The finger part. In this embodiment, the ratio of the first width to the second width is between 1.02 and 1.1.

More preferably, the end of the blade portion 11 away from the first body 14 has a non-sharp angle shape. The non-sharp angle shape can create a larger contact area with the object to be scraped, which is helpful for smoothness of scraping and avoids the problem of scraping. Problems such as stress concentration fractures.

In this embodiment, the first body 14 and the second body 21 are joined together through silver welding. The first body 14 is in the shape of a rectangular block. The two blade surfaces 12 are obliquely connected to the first body 14. The second main body 21 is in the shape of a rectangular block, and the first main body 14 is structurally continued from the second main body 21. The first main body 14 serves as a transformation function to change the shape of the two-piece blade 2 and the blade head. 1 can present a sense of continuous unity; wherein, in the length direction 41, the ratio of the second body 21 to the cutter head 1 is between 4 and 7.

It is worth mentioning that the cutter head 1 is also defined with a first glossiness, and the blade body 2 is also defined with a second glossiness, and the first glossiness is different from the second glossiness. For example, but not limited to, the cutter head The outer surface of 1 is bright, and the outer surface of blade 2 is matte, so that the user can easily distinguish the blade 1 and blade 2. During use, if light is needed for fine and precise movements, the brighter The blade head 1 is easy for the user to grasp the position, and the matte surface of the blade 2 will not produce unnecessary reflective interference.

The scraper also includes a handle 3. The blade 2 also includes a handle 22. The handle 22 is connected to a side of the second body 21 away from the cutter head 1. The handle 22 is plugged and positioned on the handle. 3. The second body 21 protrudes from the handle 3; wherein, an anti-slip structure 31 protrudes from one end of the handle 3 adjacent to the second body 21. The handle defines a third hardness, and the third hardness The second hardness is smaller than the second hardness, so as to facilitate finger pressing and applying force and provide a more comfortable holding feeling. In this embodiment, the anti-slip structure 31 is a plurality of protruding ribs 311. With the knife handle 22 as a reference plane, the position of the plurality of protruding ribs 311 is located directly above the knife handle 22. The handle 3 is integrally molded by plastic injection. The handle 22 is molded and covered, and the handle 3 is provided with a through hole 32 so that it can be hung when not in use.

The present invention also provides a method for manufacturing a scraper, which includes the following steps: providing the cutter head 1, which includes the blade portion 11; providing the cutter body 2; welding the cutter head 1 to the cutter body 2; The tip of the blade portion 11 is blunted so that the tip of the blade portion 11 has a non-sharp angle shape.

1: Knife head 11:Blade part 12: Knife surface 13: included angle 14:First subject 2:Blade 21:Second subject 22: handle 3: Grip 31: Anti-slip structure 311:Protruding ribs 32:Through hole 41:Length direction 42:Thickness direction 43: Width direction

Figure 1 is a perspective view of an embodiment of the present invention. FIG. 2 is a partially enlarged front view of FIG. 1 . Figure 3 is a side view of Figure 1. Figure 4 is a partial enlarged view of Figure 3.

1: Knife head

2:Blade

3: Grip

31: Anti-slip structure

32:Through hole

41:Length direction

42:Thickness direction

43: Width direction

Claims (9)

A scraper including: A cutter head, defined with a first hardness, includes a blade portion and a first body. The blade portion extends along a length direction from one end of the first body. The blade portion includes two blade surfaces sandwiched between the two blade surfaces. There is an included angle, the first body defines a first thickness along a thickness direction, the first body defines a first width along a width direction, and the length direction, the thickness direction and the width direction are perpendicular to each other; and A blade defined with a second hardness, including a second body connected to the other side of the first body along the length direction, the second body defining a second thickness along the thickness direction, the second body The two main bodies define a second width along the width direction; Wherein, the included angle is between 40 degrees and 75 degrees, the first hardness is greater than the second hardness, the first thickness is different from the second thickness, and the first width is different from the second width; Wherein, the first main body and the second main system are joined together through silver soldering. The scraper as claimed in claim 1, wherein the first hardness is between HRA85 and HRA94. The scraper as claimed in claim 1, wherein the included angle is 60 degrees. The scraper as claimed in claim 1, wherein an end of the blade portion away from the first body is in a non-sharp angle shape. The scraper of claim 1 further includes a handle, the blade further includes a handle, the handle is connected to a side of the second body away from the blade head, and the handle is plugged and positioned on the handle. , the second body protrudes from the handle; wherein, the handle piece is protruding with an anti-slip structure adjacent to one end of the second body, and the handle is defined with a third hardness, and the third hardness is smaller than the second hardness. The scraper according to any one of claims 1 to 5, wherein the blade head is further defined with a first glossiness, the blade body is further defined with a second glossiness, and the first glossiness is different from the second glossiness. The scraper according to claim 6, wherein the outer surface of the cutter head is bright and the outer surface of the blade is matte. The scraper of claim 2, wherein the first hardness is between HRA85 and HRA94; the included angle is 60 degrees; the end of the blade away from the first body is in a non-sharp angle shape; the scraper also includes a grip The blade further includes a handle, the handle is connected to a side of the second body away from the blade head, the handle is inserted and positioned on the handle, and the second body protrudes from the handle; wherein , the handle piece is protruding with an anti-slip structure adjacent to one end of the second body, the handle is defined with a third hardness, and the third hardness is smaller than the second hardness; the blade head is also defined with a first glossiness, and the blade body It is also defined that there is a second glossiness, the first glossiness is different from the second glossiness; the outer surface of the blade head is bright, and the outer surface of the blade body is matte; the first thickness is greater than the second thickness, The first width is greater than the second width; the handle is integrally molded by plastic injection molding to cover the handle, and the handle is provided with a through hole; the first body is in the shape of a rectangular block, and the two blade surfaces are obliquely connected to the handle. The first body, the second body is in the shape of a rectangular block; the anti-slip structure is a plurality of protruding ribs, with the knife handle as a reference plane, and the plurality of protruding ribs are located directly above the knife handle; in the length direction, The ratio of the second body to the cutter head is between 4 and 7; the ratio of the first width to the second width is between 1.02 and 1.1. A method for manufacturing a scraper includes the following steps: A cutter head is provided, and the cutter head includes a blade portion; A blade is provided; Welding the blade to the blade through silver; The tip of the blade portion is blunted so that the tip of the blade portion has a non-sharp angle shape.

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