Scraper

Abstract

To provide a scraper that can perform long-term scraping work by using any of a plurality of blades formed on the outer peripheral surface of a main portion that is bent in a substantially arc shape.SOLUTION: In a scraper 1, a tabular main portion 2 including a grip portion 4 is bent into a substantially arc shape, and a plurality of blades 3 is formed erected upright in parallel to each other on an outer circumferential surface of the main portion 2.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a scraper having a plate-like main body bent into a substantially arcuate shape and having a plurality of blades formed in parallel and extending upright on the outer circumferential surface of the main body. [Background technology]

[0002] Scrapers with spatula-shaped blades at their tips are used as tools for scraping off old paint, rust, or accumulated dirt from surfaces such as metals and plastics. For example, as shown in Utility Model Registration No. 3228521 (Patent Document 1), this scraper has a flat spatula fixed to a handle, with a blade formed at the tip of the spatula. Furthermore, Japanese Patent Laid-Open Publication No. 9-23988 (Patent Document 2) discloses providing a hard cutting edge made of carbide, ceramic, or the like at the free end of a spatula made of steel plate attached to a handle.

[0003] Commonly used scrapers have a sharp edge formed at the tip of a metal or plastic spatula to remove old paint and rust. However, the tip of the blade wears with use, reducing its functionality as a scraper and necessitating the replacement of the scraper itself. To solve this problem, Japanese Patent Laid-Open Publication No. 2007-68609 (Patent Document 3) proposes breaking off the blade to create a new edge. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Utility Model Registration No. 3228521 [Patent Document 2] Japanese Patent Application Publication No. 9-23988 [Patent Document 2] Japanese Patent Application Laid-Open No. 2007-68609 DISCLOSURE OF THE INVENTION [Problem to be solved by the invention]

[0005] The scrapers disclosed in Patent Documents 1 and 2 use the tip of a spatula as a blade to remove paint and rust, but if the scraper is used for a long period of time, the blade wears out and loses its edge, making the scraping difficult. Thus, when the blade wears out, the scraper body must be discarded. Furthermore, the scraper disclosed in Patent Document 3 creates a new edge by breaking off the blade, but with a wide or thick blade, breaking the blade is difficult, limiting the scraper to small sizes.

[0006] The problem that the present invention aims to solve is to provide a scraper that can perform stripping work for long periods of time by using one of multiple blades formed on the outer surface of the main body, which is bent in an approximately arc shape. [Means for solving the problem]

[0007] In order to solve the above problems, the scraper of the present invention has a plate-shaped main body having a gripping portion bent into an approximately arc shape, and multiple blades formed upright in parallel on the outer peripheral surface of the main body.

[0008] The gripping portion and main body of the scraper are integrally formed from a metal plate, and the blades are formed by carving out the metal plate.

[0009] Furthermore, the blades have their sharply angled cutting edges facing in the direction of the front end opposite the grip portion. [Effects of the Invention]

[0010] According to the present invention, the plate-shaped main body is bent into a roughly arc shape, and multiple blades are formed upright in parallel on the outer periphery of the roughly arc-shaped main body, so that by changing the angle of the main body, any one of the multiple blades can be used to remove paint, rust, etc. In this way, since multiple blades are formed on one scraper, it is possible to perform long-term removal work for the number of blades.

[0011] Furthermore, because the scraper is made of metal plate, multiple blades can be carved into the metal plate to form them upright. By carving the blades upright, the cutting edge can be formed into a sharp knife-edge shape, which makes it easy to remove paint, rust, etc. Moreover, the main body portion with multiple blades formed upright can be easily bent into an arc shape. Furthermore, by forming the grip portion integrally with the main body portion with multiple blades from metal plate, the structure is simple, thereby reducing manufacturing costs.

[0012] Furthermore, the cutting edges of the multiple blades are formed at an acute angle and are oriented in the direction of the front end opposite the gripping portion, so the direction of the blades is the direction in which the stripping work is carried out, making it possible to strip paint, rust, etc. in a short amount of time using the sharp-angled blades. [Brief explanation of the drawings]

[0013] [Figure 1] FIG. 1 is a perspective view of a scraper according to the present invention. [Figure 2] FIG. 2 is a plan view of the scraper shown in FIG. [Figure 3] FIG. 2 is a side view of the scraper shown in FIG. [Figure 4] 10A and 10B are explanatory views showing the state of the peeling operation by the main body part. [Figure 5] 10 is an explanatory diagram showing a state in which a plurality of blades are formed upright on a metal plate. FIG. [Figure 6] 10 is an explanatory diagram showing a state in which the main body is bent into a substantially arc shape. FIG. [Figure 7] FIG. 10 is a plan view showing a modified example in which a plurality of blades formed on the main body are inclined. [Figure 8] FIG. 10 is a plan view showing a modified example in which the scraper is a wide type. BEST MODE FOR CARRYING OUT THE INVENTION

[0014] The scraper has a plate-shaped main body having a gripping portion bent into a substantially arc shape, and a plurality of blades formed on the outer circumferential surface of the main body in a parallel, upright manner.

[0015] The scraper according to the present invention will be described in detail below with reference to the drawings. As shown in FIGS. 1 and 3, the scraper 1 has a plate-shaped main body 2 bent into a generally arcuate shape, and a plurality of blades 3 are integrally formed in parallel on the outer peripheral surface 2a of the main body 2. The main body 2 is a bendable rectangular metal plate such as a stainless steel plate or a steel plate, and the thickness of this metal plate is approximately 0.5 mm to 5 mm. A grip 4 is integrally formed on one end of the main body 2. As shown in FIG. 1, the grip 4 is made of the same metal plate as the main body 2. However, to prevent pain in the hands of the operator performing the peeling operation, a wooden or plastic handle 5 may be attached as shown in FIG. 3.

[0016] The main body 2 is curved in a generally arcuate shape, and has multiple blades 3 formed upright in parallel on the outer circumferential surface 2a. The blades 3 are saw-toothed, with the sharply angled cutting edge facing the front end. This direction is ideal for peeling work, but they may also be formed in the opposite direction depending on the material to be peeled and workability.

[0017] In this embodiment, the blades 3 formed upright on the outer peripheral surface 2a of the main body 2 are six in number, numbered 1st blade 3a to 6th blade 3f, as shown in FIG. 2. The spacing between the blades 3 is set to a wide interval of approximately 3 mm to 10 mm so that each blade 3 can perform the peeling operation almost independently. Furthermore, this spacing allows for the swarf removed during the peeling operation to be quickly removed. The number of blades 3 is not limited to six, and may be several to several tens.

[0018] Next, the peeling operation of the scraper 1 described above will be explained with reference to FIG. 4. For example, a film 7 to be peeled, such as loose rust or old paint, adheres to the surface of a metal body 6. When peeling off this film 7 with the scraper 1, first, as shown in FIG. 4(A), the scraper 1 moves in the forward direction (left side of the drawing) while pressing the first blade 3a, which is the front end of the multiple blades 3, against the film 7 to be peeled off. Because the cutting edge of the first blade 3a, which is formed at an acute angle, faces the forward direction, the film 7 to be peeled off is peeled off by the first blade 3a.

[0019] If the film 7 to be peeled is wide or hard, the cutting edge of the first blade 3a may wear. In this case, as shown in Figure 4(B), tilting the scraper 1 in the direction of the arrow brings the second blade 3b closest to the metal body 6, and the worn first blade 3a separates from the film 7 to be peeled. From this state, the second blade 3b can be pressed against the film 7 and moved forward, allowing the film 7 to be peeled off by the second blade 3b. The peeled film 7 then moves toward the first blade 3a or laterally to the second blade 3b and is removed. In this way, by tilting or changing the angle of the scraper 1, six blades 3 (first blade 3a through sixth blade 3f) can be used, enabling six times the area of ​​the film 7 to be peeled off. Furthermore, by sequentially using the six blades 3, the scraper 1 can be used for up to six times longer.

[0020] In this way, the film 7 to be peeled can be peeled off by tilting the scraper 1 and sequentially using the first to sixth blades 3a to 3f. Alternatively, the scraper 1 can be tilted at different angles to peel off the film 7, allowing for uniform wear of the first to sixth blades 3a to 3f, allowing for a variety of peeling tasks. It can also be used to remove old, stuck-on stickers, wallpaper, dirt stuck to floors, or paint applied to furniture. Furthermore, when peeling off a film from a curved recess, the approximately arc-shaped outer peripheral surface 2a can be effectively utilized.

[0021] Figures 5 and 6 show an example of a means for forming multiple blades 3 upright on the main body 2 of the scraper 1. The main body 2 is made of a bendable metal plate 8, such as a stainless steel plate or a steel plate. The digging tool 10 shown in Figure 5 has a blade 10a formed on the bottom side, and the width of the blade 10a is set to the width of the scraper 1. When using a wide metal plate 8 for multiple cutting tools, the width of the digging tool 10 is set to the width of the metal plate 8. The digging tool 10 is attached to a driving device (not shown) at a predetermined angle θ1 so that the rear end is higher than one side of the metal plate 8. This angle θ1 is set to approximately 10 to 60 degrees. The angle θ2 between the sliding surface 10b of the digging tool 10 and the direction of movement is set to approximately 30 to 80 degrees.

[0022] First, the blade portion 10a of the excavation tool 10 is brought into contact with the metal plate 8 at a position where the sixth blade 3f will be formed. Then, the excavation tool 10 is driven by a drive unit to enter the metal plate 8 in the direction of the arrow at a predetermined angle θ1. The blade portion 10a of the excavation tool 10 bites into one side of the metal plate 8, forming the sixth blade 3f. The height of the sixth blade 3f is preferably approximately 0.1 mm to 0.5 mm. The subsequent fifth blade 3e to first blade 3a are also formed to the same height.

[0023] Next, the excavation tool 10 is returned to the origin position, and the metal plate 8 is advanced to a position where the next fifth blade 3e will be formed upright. After the excavation tool 10 is brought into contact with that position, the excavation tool 10 is inserted into the metal plate 8 in the direction of the arrow at a predetermined angle θ1 by the drive device, and the blade portion 10a of the excavation tool 10 bites into one side of the metal plate 8, forming the next fifth blade 3e upright at a position spaced apart from the sixth blade 3f. Thereafter, by repeatedly returning the excavation tool 10 to the origin position and advancing toward the metal plate 8, the fourth blade 3d to the first blade 3a are successively formed upright in parallel at the same intervals.

[0024] Thereafter, the scraper 1 having a predetermined width is bent into a substantially arc shape in the main body 2 so that the first blade 3a to the sixth blade 3f form the outer circumferential surface 2a, as shown in Fig. 6. At this time, the radius of bending the main body 2 is appropriately set depending on the size, use, or type of the scraper 1. The gripping portion 4 is not bent into an arc shape but is flat.

[0025] 7 shows another embodiment of the present invention, in which multiple blades 3 formed parallel to the outer peripheral surface 2a of the main body 2 are tilted relative to the stripping direction of the scraper 1. The front end of the scraper 1 is also tilted parallel to the first blade 3a. By tilting the six blades 3 from the first blade 3a to the sixth blade 3f in this way, it becomes possible to easily strip the film 7 to be stripped, such as rust or old paint, adhering to the surface of the metal body 6, even if it is hard.

[0026] 8 shows yet another embodiment of the present invention, a wide scraper 20. This scraper 20 is formed in a roughly fan-like shape, with the front end of the main body 21 being wide and narrowing toward the grip 22. The grip 22 is formed to the same width as the scraper 1 described above. The roughly fan-shaped main body 21 is bent into a roughly arc shape, and a plurality of blades 23 are formed upright and parallel to each other on the outer circumferential surface 21a.

[0027] This wide scraper 20 can also perform the same stripping work as the scraper 1 described above, but because the front end is wider, it can efficiently strip rust, old paint, etc. Also, since multiple blades 23 are formed upright in parallel on the outer circumferential surface 21a of the body 21, which is bent into an approximately arc shape, even if one blade 23 wears out, by tilting the scraper 20, the other blades 23 can be used to continue the stripping work, just like the scraper 1 described above.

[0028] The scraper 1 or scraper 20 described above has a blade formed on a metal plate, but it can also be formed by molding with plastic. In particular, in the case of the wide scraper 20 shown in Figure 8, it is desirable to manufacture it by molding because this affects the yield rate of the metal plate.

[0029] The present invention described above is not limited to these embodiments and may be modified in various ways without departing from the scope of the present invention. The scraper in the above-described embodiment is merely an example, and scrapers may be modified into various shapes according to various uses, such as for home use, DIY, art work processing, or industrial use. [Explanation of symbols]

[0030] 1 scraper 2 Main body 2a Outer surface 3 blades 4 Grip part 8 metal plate

Claims

1. A scraper characterized in that a plate-shaped main body having a gripping portion is bent into a substantially arcuate shape, and a plurality of blades are formed in parallel and erect on the outer peripheral surface of the main body.

2. 2. The scraper according to claim 1, wherein the grip portion and the main body portion are integrally formed from a metal plate, and the plurality of blades are formed by carving out the metal plate.

3. The scraper according to claim 1 , wherein the cutting edges of the blades are formed at an acute angle and point in a direction toward the front end opposite the grip portion.

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