Spatula for wall covering application

Abstract

Spatulas used for applying wall coverings are made of soft materials, such as resin, because they come into contact with the wallpaper. As a result, when using a wall covering spatula to remove air bubbles from the wallpaper, the spatula deforms, making it difficult to transmit force to both ends of the spatula, resulting in insufficient work efficiency. [Solution] A spatula for applying wall coverings, comprising a plate-shaped spatula plate portion and an edge portion whose cross-section, when cut perpendicular to the longitudinal direction of the spatula for applying wall coverings, has a constricted gourd shape, wherein the edge portion is provided at one end of the spatula plate portion, and the other end, the tip portion, is tapered.

Description

Technical Field

[0001] The present invention relates to a trowel for wall covering construction.

Background Art

[0002] A trowel for wall covering construction is mainly used when pasting wallpaper, and can perform various operations such as pasting wallpaper, venting air when the wallpaper is pasted, and pushing in the corner portions. Note that the trowel for wall covering construction is often made of a soft member, for example, resin, so as not to damage the wallpaper.

[0003] When squeezing the wallpaper and venting air etc. after pasting the wallpaper, since the trowel for wall covering construction is made of soft resin, the force concentrates on the central portion of the trowel for wall covering construction, and the force does not reach both end portions, resulting in a problem of poor efficiency.

[0004] Therefore, a trowel for wall covering construction with a part of the end portion being semi-cylindrical is known. Thereby, during the operation, the force can be transmitted to both end portions to a certain extent.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0006] However, even if a part of the end portion of the trowel for wall covering construction is semi-cylindrical, the force is not sufficiently transmitted to both end portions, and the efficiency is not sufficient.

[0007] The present invention has been made in view of the problems in such a conventional invention, and provides a trowel for wall covering construction in which the force is more surely transmitted to both end portions during construction. [Means for solving the problem]

[0008] To achieve the above objective, the present invention comprises at least the following configuration or performs the following procedure.

[0009] The present invention relates to a spatula for applying wall covering materials, characterized in that it has a plate-shaped spatula plate portion and an edge portion whose cross-section, when cut perpendicular to the longitudinal direction of the spatula for applying wall covering materials, has a constricted gourd shape, the edge portion is provided at one end of the spatula plate portion, and the other end, the tip portion, is tapered. With this configuration, when using the edge to remove air bubbles from wallpaper, the force is sufficiently transmitted to both ends of the edge, thereby improving work efficiency.

[0010] Preferably, the surface portion of the spatula plate is provided with multiple protrusions to improve slip resistance. This configuration makes it less likely to slip when working with a spatula used for wall covering application, thus improving work efficiency.

[0011] Preferably, the gourd shape is formed by two overlapping circles, and of the two circles, the far-circular portion of the circle further from the spatula plate is larger than the near-circular portion closer to the spatula plate. This configuration ensures that force is transmitted more reliably to both ends of the edge.

[0012] Preferably, the constricted portion is characterized by having a gentle curved surface. This configuration prevents force from concentrating at a single point in the constricted area, thereby improving durability.

[0013] Preferably, the distal portion of the two gourd-shaped circles has a diameter of 10 mm, and the near portion has a diameter of 8 mm. This configuration ensures that force is transmitted more reliably to both ends of the edge. [Effects of the Invention]

[0014] As described above, using the wall covering application spatula of the present invention allows force to be transmitted more reliably to both ends of the edges, thereby improving the efficiency of tasks such as wallpapering. [Brief explanation of the drawing]

[0015] [Figure 1] This is a perspective view showing the spatula 100 for applying wall coverings according to the present invention. [Figure 2] This is a plan view showing the spatula 100 for applying wall coverings according to the present invention. [Figure 3] This figure shows the cross-sectional shape of the wall covering application spatula 100 of the present invention when cut in a direction perpendicular to the longitudinal direction. [Modes for carrying out the invention]

[0016] The embodiments of the present invention will be described in detail below with reference to the drawings. The embodiments described below are merely examples of how to implement the present invention and are not intended to limit the scope of the invention.

[0017] Figure 1 is a perspective view showing the wall covering application spatula 100 of the present invention, and Figure 2 is a plan view showing the wall covering application spatula 100 of the present invention. The wall covering application spatula 100 has a plate-shaped spatula plate portion 120 and an edge portion 110 which has a gourd shape with a constricted portion 111 when cut in a direction perpendicular to the longitudinal direction of the wall covering application spatula 100. In addition, the edge portion 110 is provided at one end of the spatula plate portion 120, and the tip portion 121 at the other end has a tapered shape which becomes thinner towards the tip.

[0018] When using the spatula 100 for installing wall materials of the present invention to vent air from wallpaper or the like, the curved portion of the edge 110 is used. At this time, not only the central portion 112 of the edge 110 but also the force is evenly transmitted to both end portions 113. As a result of various experiments, it has been found that when the edge 110 is in a ladle shape, the force is transmitted not only to the central portion 112 but also to both end portions 113 without the edge 110 being distorted. In addition, when the edge 110 is spherical, semi-spherical or semi-cylindrical, the force is not sufficiently transmitted to both end portions 113 during construction like the spatula 100 for installing wall materials of the present invention.

[0019] Also, when using the spatula 100 for installing wall materials of the present invention to vent air from wallpaper or the like, not only the edge 110 but also the spatula plate portion 120 is used. That is, the spatula 100 for installing wall materials of the present invention enables two ways of use: a method of using the spatula plate portion 120 to firmly hold and vent air, and a method of using the edge 110 to smoothly press and vent air.

[0020] The material of the spatula plate portion 120 and the edge 110 of the spatula 100 for installing wall materials is synthetic resin, and the spatula plate portion 120 and the edge 110 are integrally formed. Preferred synthetic resins include polyacetal, polyethylene, polypropylene, fluororesin, etc. In addition, the spatula plate portion 120 and the edge 110 may be separately formed and then joined with an adhesive or the like. Also, as the material, it may be formed of a flexible material, for example, made of metal, wood, or bamboo.

[0021] A plurality of protrusions 122 are provided on the surface portion of the spatula plate portion 120 to improve anti-slip properties. The protrusions 122 are provided on both sides of the spatula plate portion 120, but only one side is also acceptable. Also, the protrusions 122 are provided near the center of the spatula plate portion 120 and a plurality of convex lines are formed. The protrusions 122 are formed by gathering processing, but may also be circular convex portions, square convex portions, etc.

[0022] The spatula plate section 120 has a small through-hole 123 through which a string or the like can be passed. This prevents the wall covering application spatula 100 from falling.

[0023] The rounded corner portion 124 of the spatula plate portion 120 has a rounded corner. This prevents the wall covering application spatula 100 from catching on the wallpaper.

[0024] Figure 3 shows the cross-sectional shape of the wall covering application spatula 100 when cut perpendicular to the longitudinal direction. The tip portion 121 of the spatula blade portion 120 is formed at an acute angle and is designed to be single-edged. However, the tip portion 121 of the spatula blade portion 120 may be formed at an acute angle to be double-edged instead of single-edged. Also, the tip portion 121 may be formed in a rounded shape. In other words, the tip portion 121 may have a tapered shape that becomes thinner towards the tip. This shape allows the wallpaper to be firmly pressed down even at corners and edges during application.

[0025] The gourd shape of the rim 110 is formed by two overlapping circles, with the far-circle portion (the circle further from the spatula plate portion 120) being larger than the near-circle portion (the circle closer to the spatula plate portion 120). The far-circle portion of the two circles in the gourd shape has a diameter of 10 mm, and the near-circle portion has a diameter of 8 mm. This size ensures that force is more reliably transmitted to both ends 113 of the rim 110. Preferably, the far-circle portion has a diameter of 8 to 12 mm, and the near-circle portion has a diameter of 6 to 10 mm, with the far-circle portion being larger than the near-circle portion. For example, a shape similar to that of a typical acoustic guitar is preferable.

[0026] Furthermore, the gourd shape of the edge 110 can be any shape with a constriction in the middle of an ellipse, and is not limited to a shape in which two circles overlap.

[0027] Furthermore, the gourd shape of the edge 110 has a constricted portion 111 and a gentle curve. The gentle curve improves durability. If the constricted portion 111 is formed at an angle, force will concentrate in that area, and there is a possibility that it will tear at that point. Also, if glue is used, it is preferable because the glue can be easily wiped off. However, although durability will be reduced, the constricted portion 111 may be formed at an angle.

[0028] As described above, by using the wall covering application spatula 100 of the present invention, force is uniformly transmitted to both ends 113 of the edge 110, allowing for efficient work. [Industrial applicability]

[0029] The wall covering application spatula 100 of the present invention is useful because it allows for efficient work when performing tasks such as applying wallpaper and removing air bubbles from wallpaper. [Explanation of symbols]

[0030] 100 Spatulas for wall covering application 110 Edge 111 Waist area 112 Central part 113 Both ends 120 Spatula plate section 121 Tip part 122 Protrusion 123 Through hole 124 Rounded corners

Claims

1. A spatula for applying wall coverings, It has a plate-shaped spatula section and an edge section whose cross-section, when cut perpendicular to the longitudinal direction of the spatula for applying wall covering materials, has a constricted, gourd-like shape. A spatula for applying wall coverings, characterized in that one end of the spatula plate portion is provided with the edge portion, and the other end, the tip portion, has a tapered shape.

2. The spatula for applying wall coverings according to claim 1, characterized in that the surface portion of the spatula plate is provided with a plurality of protrusions to improve slip resistance.

3. The gourd shape is formed by two overlapping circles, and the distal portion of the circle furthest from the spatula plate is formed to be larger than the periphery portion closer to the spatula plate, as described in claim 1 or 2.

4. The constricted portion is characterized by having a gentle curved surface, as described in claim 3, for the application of wall covering materials.

5. The spatula for applying wall coverings according to claim 4, characterized in that the far circular portion of the two gourd-shaped circles has a diameter of 10 mm and the near circular portion has a diameter of 8 mm.

Images