Hot scraper
The hot scraper with an angle adjustment device and detachable cutter blade allows efficient peeling of coatings by adjusting the spatula angle and temperature, addressing the challenge of precise angling required by existing tools.
Patent Information
- Application Number
- JP2025069210
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2025-04-21
- Publication Date
- 2025-11-17
- Estimated Expiration
- 2045-04-21
AI Technical Summary
Existing coating removal tools require precise angling by experienced workers, making it difficult for inexperienced users to efficiently peel off coatings like paint.
A hot scraper equipped with an angle adjustment device to fix the spatula tip at a 20° to 30° angle, combined with a detachable cutter blade and temperature control, allowing efficient peeling of coatings.
Enables efficient and user-friendly peeling of coatings by adjusting the spatula angle and temperature, facilitating single-sheet separation of the coating from the base material.
Smart Images

Figure 0007770733000001_ABST
Abstract
Description
[Technical Field]
[0001] The present invention relates to a hot scraper that heats and peels off a coating film such as paint, and to a hot scraper that can perform the peeling work efficiently. [Background technology]
[0002] An electrically heated peeling spatula that heats and peels off coatings such as paint is described in Patent Document 1. This spatula has an electric heater 4 attached to the spatula plate 2 at the tip of the handle 1, and this electric heater 4 heats the spatula plate 2, softening the coating and peeling it off.
[0003] When the coating film is softened by heat, it becomes easy to peel off with a spatula, and even coating films that are difficult to peel off at room temperature can be easily peeled off. [Prior art documents] [Patent documents]
[0004] [Patent Document 1] Utility Model Registration No. 3153080 Summary of the Invention [Problem to be solved by the invention]
[0005] However, to peel off a coating film using the spatula described in Patent Document 1, it is necessary to apply the tip of the spatula at an appropriate angle to the coating film to be peeled off. That is, to peel off the coating film efficiently, it is preferable to apply the tip of the spatula at an angle of 20° to 30° from the surface of the coating film.
[0006] If the tip of the spatula is applied at an angle other than the correct angle, it becomes difficult to remove the paint film, and the same area will have to be removed repeatedly. Applying the spatula at the correct angle is easy for an experienced worker, but it is difficult for an inexperienced worker, and efficient work cannot be expected.
[0007] The present invention was created to solve the above-mentioned problems, and aims to provide a hot scraper that allows anyone to efficiently peel off coatings such as paint while heating them. [Means for solving the problem]
[0008] In order to achieve the above object, the first means of the present invention is a hot scraper that heats and peels off a coating film P such as paint, and is provided with an angle adjustment device 10 that fixes the contact angle of the tip of the spatula 1 with respect to the surface of the coating film P, The angle adjustment device 10 includes a slide rod 11 extending from the tip end side of the underside of the spatula 1 toward the rear end, and a roller 12 slidably provided on the slide rod 11. Adjust the position of The contact angle of the spatula tip to the coating surface is in the range of 20° to 30°. It is designed to be changed.
[0010] No. 2 The means is configured so that a strip-shaped cutter blade 2 is detachably attached to the tip side of the spatula 1.
[0011] No. 3 The spatula 1 of the above means is provided with two upper and lower clamping pieces 1A attached to the tip side of the handle 3, and a fixing screw 4 for fastening the cutter blade 2 clamped to the tip side of the clamping pieces 1A with the clamping pieces 1A. [Effects of the Invention]
[0012] According to the present invention, an angle adjustment device that fixes the contact angle of the tip of the spatula 1 with respect to the coating surface is attached to the underside of the spatula, and the position of the angle adjustment device can be adjusted back and forth to change the contact angle of the spatula tip, allowing anyone to efficiently peel off coatings such as paint. [Brief explanation of the drawings]
[0013] [Figure 1] FIG. 1 is a plan view showing an embodiment of the present invention. [Figure 2] FIG. 2 is a plan view showing a cutter blade and a clamping piece of the present invention. [Figure 3] FIG. 1 is a side view showing a state in which the present invention is used. [Figure 4]1 is a schematic diagram showing the angle between the cutter blade of the present invention and the coating film to be peeled off. DETAILED DESCRIPTION OF THE INVENTION
[0014] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention is directed to a hot scraper that heats and peels off a coating film P such as paint.
[0015] The main components of the present invention include a spatula 1, a cutter blade 2, and an angle adjustment device 10 (see FIG. 3). The spatula 1 is heated to a high temperature by an electric heater (not shown) housed inside the spatula 1, and the tip of the spatula 1 heats and peels off the coating film P.
[0016] To adjust the temperature of the spatula 1, the illustrated example is equipped with a temperature setting button 5 for setting the temperature of the electric heater and a temperature display window 6 for digitally displaying the set temperature (see FIG. 1). By allowing the temperature to be set within the range of, for example, 80°C to 300°C, it becomes possible to accommodate many coating films P.
[0017] The illustrated spatula 1 has two clamping pieces 1A, one above the other, attached to the tip of the handle 3, and a fixing screw 4 for fastening the clamping pieces 1A (see Figure 2). Then, a cutter blade 2 is clamped to the tip of the clamping pieces 1A, and the fixing screw 4 is tightened to fix the cutter blade 2 to the tip of the spatula 1 (see Figure 1).
[0018] In this way, by cutting into the boundary surface between the coating film P and the base material Q with the heated cutter blade 2, it becomes possible to efficiently peel off the coating film P, whose adhesion has decreased, from the base material Q (see Figure 4). In this case, by using a commercially available cutter blade 2, it becomes easy to replace the cutter blade 2 and it is possible to increase versatility.
[0019] The angle adjusting device 10 is attached to the underside of the spatula 1 to fix the contact angle of the tip of the spatula 1 with respect to the surface of the coating film P (see FIG. 3). The angle adjusting device 10 shown in the figure includes a slide rod 11 and a roller 12.
[0020] The slide rod 11 is a linear member that extends from the tip end of the spatula 1 toward the rear end (see FIG. 3). On the other hand, the roller 12 is a rotatable member that is slidably mounted on the slide rod 11. The illustrated roller 12 changes the contact angle of the tip of the spatula 1 by moving along the longitudinal direction of the slide rod 11. For this reason, a roller fixation / release switch 7 is provided that fixes or releases the position to which the roller 12 has moved.
[0021] The angle adjustment device 10 is configured to fix the contact angle of the tip of the spatula 1 with respect to the surface of the coating film P in the range of 20° to 30° (see FIG. 3). That is, when the tip of the spatula 1 and the roller 12 come into contact with the surface of the coating film P, the contact angle of the tip of the spatula 1 is fixed in the range of 20° to 30°, and when the cutter blade 2 is held in contact with the surface of the coating film P at this angle, the coating film P is peeled off by moving the spatula 1 in the direction of the tip.
[0022] In this way, when the heated cutter blade 2 at a certain angle separates and peels the coating film P from the base material Q, the coating film P separates into a single sheet (see Figure 3). At this time, the angle and temperature of the cutter blade 2 are adjusted as desired depending on the material and conditions of the coating film P.
[0023] The configurations of the illustrated spatula 1, cutter blade 2, handle 3, angle adjustment device 10, etc. are not limited to the illustrated examples, and can be freely changed within the scope that does not change the gist of the present invention. [Explanation of symbols]
[0024] P Paint film 1 Spatula 1A narrow piece 2 cutter blades 3 patterns 4 fixing screws 5 Temperature setting button 6 Temperature display window 7 Roller release switch 10 Angle adjustment device 11 Slide rod 12 Rollers
Claims
1. This hot scraper is characterized in that it is a hot scraper that peels off a coating such as paint while heating it, and is provided with an angle adjustment device that fixes the contact angle of the spatula tip with respect to the coating surface, and the angle adjustment device comprises a sliding rod that extends from the tip side of the spatula underside toward the rear end, and a roller that is slidably mounted on the sliding rod, and is configured so that the contact angle of the spatula tip with respect to the coating surface can be changed within a range of 20° to 30° by adjusting the position of the roller back and forth.
2. 2. The hot scraper according to claim 1, wherein a strip-shaped cutter blade is detachably attached to the tip of the spatula.
3. 3. The hot scraper according to claim 2, wherein the spatula comprises two upper and lower clamping pieces attached to the tip end of the handle, and a fixing screw for fastening the cutter blade clamped to the tip end of the clamping pieces with the clamping pieces.
Citation Information
Patent Citations
Method and machine for peeling floor material or wall material
JP1984024071A
JP1987187148U
Spatula for finishing filler
JP1998156270A
Electric heating peeling spatula
JP3153080U