JP2022124611A - Plasterer trowel - Google Patents

Abstract

To provide a plasterer trowel easy to paint even when a surface to be painted is a curved surface.SOLUTION: A plasterer trowel 10 includes a trowel plate 1 formed of a plate-shaped elastic member, and two handle parts 2A, 2B provided on the trowel plate 1 so as to be spaced apart from each other.SELECTED DRAWING: Figure 1

Description

The present invention relates to a plastering trowel.

Conventionally, plastering trowels for intermediate coating or finishing have been known (see Patent Document 1, for example). In such a plastering trowel, a handle is provided on the upper surface of a flat mortar plate. The operator holds the handle by hand and applies the wall material to the surface to be painted with a mortarboard.

Japanese Unexamined Patent Publication No. 2016-014285

However, since the conventional plastering trowel has a flat mortar plate, it is difficult to coat a curved surface to be coated.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a plastering trowel that facilitates coating even when the surface to be coated is curved.

In order to achieve the above object, a plastering trowel according to an aspect of the present invention comprises a mortar board composed of a plate-like elastic member and two handles provided on the mortar board separated from each other. and

According to this configuration, for example, the worker holds the two stalks and moderately bends the portion of the mortarboard located between the two stalks, thereby coating the main surface of the portion of the mortarboard. It can be curved to match the curvature of the target surface. The curved surface of the mortar plate makes it possible to easily paint the surface to be coated, which is a curved surface.

The two handle portions may be provided on the upper surface of the mortar plate.

According to this configuration, the bottom surface (lower surface) of the mortar board prevents the handle from becoming an obstacle when the wall material is applied.

The mortarboard may be formed in a rectangular shape in a plan view, and the two handle portions may be provided at both longitudinal ends of the rectangular mortarboard.

A curved surface is formed between the two shanks by bending the mortar board. According to this configuration, since the two shanks are provided at both ends in the longitudinal direction of the rectangular mortar board, a curved surface formed between the two shanks can be effectively formed by bending the mortar board. can do.

Each of the handle portions may include a handle to be gripped by an operator and a connecting portion for connecting and fixing the handle to the mortar plate.

According to this configuration, the handle and the connecting portion have a suitable structure, thereby making it easier for the operator to hold the handle.

ADVANTAGE OF THE INVENTION This invention is effective in the ability to provide the plastering trowel which is easy to coat even when the surface to be coated is a curved surface.

FIG. 1 is a perspective view showing the configuration of a plastering trowel according to an embodiment of the present invention. 2 is a plan view of the plastering trowel of FIG. 1. FIG. FIG. 3 is a perspective view showing the appearance of the plastering trowel of FIG. 1 in use.

Hereinafter, specific embodiments of the present invention will be described with reference to the drawings. In the following description, the same reference numerals are given to the same or corresponding elements throughout all the drawings, and duplicate descriptions thereof will be omitted. In addition, the following figures are diagrams for explaining the present invention. Therefore, when elements unrelated to the present invention are omitted, when dimensions are not accurate due to exaggeration or the like, when simplified, when multiple In some cases, the forms of the elements corresponding to each other in the drawings do not match. Moreover, the present invention is not limited to the following embodiments.

(embodiment)

[Constitution]
FIG. 1 is a perspective view showing the configuration of a plastering trowel according to an embodiment of the present invention. 2 is a plan view of the plastering trowel of FIG. 1. FIG. In FIG. 1, the mortar plate 1 of the plastering trowel 10 is indicated by a single solid line because its thickness is thin. This is the same also in FIG.

Referring to FIGS. 1 and 2, the plastering trowel 10 of this embodiment includes a mortar board 1 and two handles 2A and 2B provided on the mortar board 1 so as to be separated from each other. These constituent elements are described in detail below.

<Mortarboard 1>
The mortarboard 1 is composed of a plate-like elastic member. The elasticity of the mortarboard 1 is obtained, for example, by an operator holding the two handles 2A and 2B with both hands to elastically bend the mortarboard 1 in the longitudinal direction (hereinafter referred to as "elastic bending"). " is simply called "bending"). As a guideline for the specific numerical value of the degree of bendability, for example, it is preferable that the bendability be achieved so that the radius of curvature is 1 m or less. Moreover, as shown in FIG. 3, it is more preferable that it can be bent in a U shape. In reality, appropriate elasticity of the mortar plate 1 can be obtained by appropriately selecting the material and thickness of the plate-like elastic member. Also, the elasticity of the mortar plate 1 is determined by actually bending it. Examples of materials for the elastic member include metals and plastics. The mortar plate 1 here consists of a thin plate made of stainless steel. The Young's modulus of stainless steel and carbon steel is 190 to 205 KN/mm ² and is suitable as the material for the mortar plate 1 . Since the Young's modulus of plastics (including reinforced plastics) varies greatly depending on the material, it is preferable to select a suitable material and thickness through trial production or the like.

The shape of the mortarboard 1 in a plan view (hereinafter referred to as "planar shape") is not particularly limited. The planar shape of the mortar plate 1 can be appropriately selected depending on the application of the plastering trowel 10 .

The planar shape of the mortar board 1 is rectangular here.

The size of the mortar board 1 is appropriately determined depending on the application. Here, the size of the mortar board 1 is, for example, length: 300 mm×width: 90 mm×thickness: 0.3 mm.

Also, the corners of the mortar board 1 may or may not be chamfered.

<Arrangement of Handles 2A and 2B>
The two shanks 2A and 2B are arranged on both sides of the portion of the mortarboard 1 to be bent. The distance between the two handle portions 2A, 2B is not particularly limited. The position and spacing of the two handles 2A, 2B are basically determined in consideration of the use of the plastering trowel 10. The two shanks 2A, 2B are arranged here at both ends of the mortarboard 1 in the longitudinal direction. By arranging in this way, by bending the mortar plate 1, a curved surface formed between the two handle portions 2A and 2B can be effectively formed.

<Structure of Handles 2A and 2B>
The handles 2A, 2B are provided with handles 3A, 3B and connection parts 4A, 4B for connecting and fixing the handles 3A, 3B to the mortar board 1 .

{pattern 3A, 3B}
The handles 3A and 3B are members that are manually gripped by the operator. The shape and arrangement of the handles 3A and 3B are not particularly limited as long as they can be gripped by the operator. Here, the handles 3A and 3B are formed in a columnar shape and arranged parallel to the main surface of the mortar board 1 and parallel to the width direction (transverse direction) of the mortar board 1 . The handles 3A and 3B may be arranged parallel to the longitudinal direction of the mortar board 1, for example.

The material of the handles 3A and 3B is not particularly limited. The material of the handles 3A and 3B is wood here.

{Connecting parts 4A, 4B}
The connection portions 4A and 4B may be configured so as to connect and fix the handles 3A and 3B to the mortar plate 1. As shown in FIG. The connecting portions 4A and 4B are composed of columns 5A and 5B that support the handles 3A and 3B, and fixing plates 6A and 6B that secure the lower ends of the columns 5A and 5B to the mortar board 1. As shown in FIG.

The struts 5A and 5B extend vertically, and central portions of the handles 3A and 3B are attached to the upper ends thereof. Materials for the struts 5A and 5B are not particularly limited. The material of the struts 5A and 5B is metal such as iron here. There is no particular limitation on means for attaching the handles 3A, 3B to the supports 5A, 5B. Fitting, engagement, screwing, welding, adhesion and the like are exemplified as this attachment means. Here, the handles 3A, 3B are attached to the posts 5A, 5B by a predetermined engagement structure.

The lower ends of the columns 5A, 5B are fixed to the center of the upper surfaces of the fixing plates 6A, 6B. The planar shape of the fixing plates 6A and 6B is not particularly limited. The fixing plates 6A and 6B are rectangular here, oriented so that their longitudinal direction coincides with the width direction of the mortar plate 1, and their lower surfaces are fixed to the upper surfaces of the ends of the mortar plate 1. It is

The material of the fixing plates 6A and 6B is not particularly limited. The material of the fixing plates 6A and 6B is metal such as iron here. There are no particular restrictions on the means for fixing the support columns 5A, 5B to the fixing plates 6A, 6B. Examples of this fixing means include fitting, engagement, screwing, welding, adhesion, and the like. Here, the struts 5A, 5B are fixed to the fixing plates 6A, 6B by welding.

The means for fixing the fixing plates 6A and 6B to the mortar plate 1 is not particularly limited. Examples of this fixing means include fitting, engagement, screwing, welding, adhesion, and the like. Here, the struts 5A and 5B are fixed to the mortar board 1 with an adhesive.

[how to use]
Next, how to use the plastering trowel 10 configured as described above will be described with reference to FIG. FIG. 3 is a perspective view showing the appearance of the plastering trowel 10 of FIG. 1 in use.

{Surface to be painted}
Referring to FIG. 3, the plastering trowel 1 of the present embodiment is used for painting a curved surface to be painted (not shown). The curved surface may be convex or concave. The curved surface is not particularly limited. However, the plastering trowel 10 of the present embodiment can be particularly suitably used for a surface to be coated which is a cylindrical or partially cylindrical curved surface.

Examples of curved surfaces to be painted include pillars of buildings, walls designed to have curved surfaces, and the like. The surface to be painted may be a pillar of a structure (bridge, road retaining wall, etc.), a curved wall, or the like.

{wall material}
A known wall material is used. Examples of wall materials for buildings include plaster, diatomaceous earth, Juraku earth, mortar, and Jolypad. Concrete etc. are illustrated as a wall material of a structure.

{Standard use case}
Referring to FIG. 3, when the surface to be coated is, for example, a curved surface in a convex, partially cylindrical shape extending in the vertical direction, the operator first uses an ordinary plastering trowel (not shown) to cut the surface to be coated. Prime the wall material.

Next, the operator holds the handles 3A and 3B of the two handles 2A and 2B of the plastering fixture 1 with both hands, and bends the mortarboard 1 so that the mortarboard 1 protrudes forward (flexibly bends). cause). At this time, the degree of curvature (curvature) of the mortar plate 1 is adjusted to the degree of curvature of the surface to be coated. As a result, the mortarboard 1 is generally bent into a partial columnar shape.

In this state, the plastering trowel 10 is vertically moved to extend the wall material by the lower surface (bottom surface) of the mortar plate 1 for finishing. Also, at this time, the plastering trowel 10 may be moved in the left-right direction in accordance with the curvature of the surface to be coated.

When the surface to be painted is a curved surface in a concave, partially cylindrical shape extending in the vertical direction, the operator moves the mortarboard 1 so that the mortarboard 1 protrudes inward (the front side becomes a concave portion). bend. Other than this, paint is performed in the same manner as described above.

Further, when the surface to be coated is a cylindrical or partially cylindrical curved surface extending in a direction other than the vertical direction (for example, horizontal direction or oblique direction), the plastering trowel 10 can be used to form a cylindrical or partially cylindrical curved surface. Intermediate coating or finishing is performed by moving in the extending direction. Also, at this time, the plastering trowel 10 may be moved in a direction perpendicular to the extending direction of the cylindrical or partially cylindrical curved surface while adjusting to the degree of curvature of the surface to be coated.

The undercoat may be a rough coat or an intermediate coat, and the finish may be a finish coat.

{Special use case}
The bending method of the mortar board 1 is arbitrary. Therefore, in addition to the standard bending method of bending the mortar board 1 into a partial cylindrical shape as described above, for example, the mortar board 1 may be used by being twisted by the left and right handles 2A and 2B.

As described above, according to the plastering trowel 10 of the present embodiment, it is easy to paint even when the surface to be painted is a curved surface.

(Other embodiments)
Although the handle portions 2A and 2B are provided on the upper surface of the fixed plate 1 in the above embodiment, the handle portions 2A and 2B may be provided on both end surfaces of the mortar board 1 or side surfaces of the mortar board 1.

Many modifications and other embodiments will be apparent to those skilled in the art from the above description. Accordingly, the above description should be construed as illustrative only.

INDUSTRIAL APPLICABILITY The plastering trowel of the present invention is useful as a plastering trowel that facilitates painting even when the surface to be painted is curved.

1 Mortarboards 2A, 2B Handles 3A, 3B Handles 4A, 4B Connections 5A, 5B Supports 6A, 6B Fixing plate 10 Plastering trowels

Claims (4)

a mortarboard composed of a plate-like elastic member;
and two shanks provided on the mortar plate at a distance from each other. The plastering trowel according to claim 1, wherein the two shanks are provided on the upper surface of the mortar plate. The mortar plate is formed in a rectangular shape in plan view,
The plastering trowel according to claim 1 or 2, wherein the two handle portions are provided at both longitudinal ends of the rectangular mortar plate. The plastering trowel according to any one of claims 1 to 3, wherein each of said handle portions comprises a handle to be gripped by an operator, and a connecting portion for connecting and fixing said handle to said mortar plate.

Images