JP2005290775A - Trowel for plasterer - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To inexpensively provide a trowel for a plasterer, which has proper usability and high quality, and which enables the degree of deflection of a back metal, necessary for the simple working of the back metal, to be obtained without a change in the thickness of the trowel for the plasterer. <P>SOLUTION: In this trowel 1 for the plasterer, the back metal 2, where a column base 5 is erected, is mounted at the center of a top surface of a trowel plate 1 via an adhesive 3, and a cut 6, which passes through a plate surface, is provided in an appropriate area from a front end of the back metal 3 in such a manner as to have a planar stretch. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to improvement of a plasterer, and more particularly to a plasterer in which a back plate made of an elastic metal is attached to the center of the upper surface of a thin plate made of a thin steel plate.

  Conventionally, as this kind of plasterer (referred to as a slag iron), a column base is erected on a back metal made of an elastic metal and is gradually extended from the column base to the front end and the rear end. The thickness of the back metal is reduced to make the end of the back metal easier to bend, and this back metal is bonded to the base plate using an elastically deformable adhesive. However, there has been proposed a bag having a configuration that bends and follows. (For example, refer to Patent Document 1).

However, as described above, when the thickness is gradually reduced from the middle part to the both ends of the back metal, the surface of the back metal is usually thinned by cutting. In addition to being subjected to heat treatment, thermal distortion is likely to occur during cutting, and it is difficult to make the quality performance of the back metal constant.
Japanese Utility Model Publication No. 22-24424.

  The present invention has been made in view of such a situation. The thickness of the back metal of the plasterer is kept as it is, and the bending degree of the back metal required by simple processing on the back metal can be easily obtained. The purpose is to provide an easy-to-use high-quality plasterer at low cost.

  To achieve the above object, a plasterer according to the present invention is a plasterer in which a back metal provided with a column base is attached to the center of the top surface of the base plate through an adhesive. In this range, the slits penetrating the plate surface are provided with a surface expansion.

  According to the plasterer of the present invention configured as described above, when using the coffin, when the tail end of the coffin plate is lifted and the wall surface is pressed by the coffin plate tip, the front end portion of the coffin plate is bent. As the base plate is bent, the back metal is also appropriately bent integrally with the base plate. As a result, the base plate is flexed and an easy-to-use plasterer is obtained, thereby improving workability.

  Further, in the above-mentioned configuration, the notch is provided through the plate surface of the back metal in order to reduce the strength of the plate body of the back metal and make it easy to bend with respect to the bending force applied to the tip of the back metal from the outside. belongs to.

  Therefore, as a specific example of the cut provided at the tip of the back metal, it can be formed by a plurality of perforations provided in an aligned manner. Since the drilling in this case can be performed using a general-purpose drill, the operation is simple and the production cost can be reduced.

  As another specific example of the cut provided at the tip of the back metal, it can be formed by a linear continuous cut by laser processing or the like. In this case, when the linear continuous cut extends in the width direction and the longitudinal direction of the back metal and is bent into a continuous linear cut, the back metal and the base plate are separated depending on how the linear cut is made with respect to the back metal. A predetermined degree of bending can be obtained integrally.

  According to the present invention, in a plasterer that requires the bending of the cover plate from the viewpoint of work, the back plate is also appropriately bent integrally with the cover plate by a simple process on the front end portion of the back plate on the cover plate. Since the bending of the plate can be improved, an easy-to-use plasterer can be obtained and workability can be improved. In addition, the processing of the front end of the back metal can be done simply by using a general-purpose device, so that the production cost can be reduced and the thermal performance is not caused. High quality plasterer can be provided.

  Hereinafter, a plasterer according to an embodiment of the present invention will be specifically described with reference to the drawings.

  FIG. 1 is a perspective view of a plasterer according to the present invention, FIG. 2 is a perspective view showing a part of a plaster board, FIG. 3 is a side view of the plasterer with a main portion enlarged, and FIG. It is sectional drawing which shows a bending condition.

  As shown in FIG. 1, the gutter plate 1 is made of an elastic thin metal plate, for example, a steel plate or a stainless steel plate having a thickness of about 0.5 to 1 mm. It is formed in a V shape or the like.

  A back metal 2 that is elongated and has a strip shape in the longitudinal direction is attached to the center of the upper surface of the plate 1 via an adhesive 3. A column base 4 is erected on the back metal 2 at a position slightly rearward from the central portion, and a wooden handle 5 is attached to the column base 4.

  The plate 1 and the back metal 2 described above are bonded with an adhesive 3, and the adhesive 3 layer existing between them is used when the plaster plate 1 and the back metal 2 are bent together at the work site. The three layers of adhesive are elastically deformed to absorb mismatch caused by the difference in curvature radius between the two. The basic structure of the plasterer described above is well known.

  The back metal 2 of the plasterer according to the present invention is provided with a notch 6 penetrating the plate surface in an appropriate range from the front end 2a of the back metal 2 with a surface expansion. The tip of the back metal 2 is also allowed to follow the bending without difficulty.

  As a specific example of the notch 6 provided at the front end portion of the back metal 2, as shown in FIG. 1, a perforation 6 a opened in the back metal 2 may be used, or as shown in FIG. 2, by laser processing or the like. It may be a linear cut 6b penetrating the plate surface. In any case, the notch 6 is provided through the plate surface of the back metal 2 so that the strength of the plate body is reduced with respect to the bending force applied to the tip of the back metal 2 from the outside so that it can be bent easily. It is.

  Further, as shown in FIG. 1, when the plate surface strength is reduced by the perforations 6a, the plate surface strength of the perforated portion is proportional to the hole diameter, and therefore, stepwise from the front end side of the back metal 2 where a large degree of bending is required. A plurality of perforations 6a with small hole diameters are provided in an aligned manner so that the back metal 2 and the saddle plate 1 are integrated to obtain a predetermined degree of bending. In addition, as shown in FIG. 2, in the case of a linear cut 6 b penetrating the plate surface, both ends of a linear portion extending in the back metal width direction at a predetermined interval and a linear part adjacent in the back metal longitudinal direction A linear incision is formed between the back metal 2 and the back metal 2 so as to obtain a predetermined degree of flexure by integrating the back metal 2 and the saddle plate 1.

  Thus, according to the plasterer of the present invention having the above-described structure, as shown in FIG. 4, when using the scissors, if the tail end of the scissors is lifted and the wall surface is pressed by the tip of the scissors 1 As the front end of the base plate 1 is bent and the base plate 1 bends, the back metal 2 provided with a plurality of perforations 6a in an aligned manner integrally with the base plate 1 is also appropriately bent and plastered. It is intended to improve the usability.

  There are many types of plasterers according to the present invention. However, according to the plasterer according to the present invention, the structure is simple and the usability of the plasterer can be greatly improved. It is extremely useful in practical use that can expand sales range and increase sales.

It is a perspective view of the plasterer according to the present invention. It is a perspective view which shows a part of saddle plate. It is the side view of the plasterer which expanded and showed the principal part in the cross section. It is sectional drawing which shows the bending condition of a saddle plate.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Plate 2 Back metal 2a Front end 3 Adhesive 4 Column base 5 Handle 6 Notch 6a Perforation 6b Linear cut

Claims (3)

In a plasterer with a back metal stand with a column base installed in the center of the top surface of the plate with an adhesive, a notch penetrating the plate surface is provided in a suitable area from the front end of the back plate with a surface spread. A plasterer characterized by that. 2. The plasterer according to claim 1, wherein the notches are formed by a plurality of perforations provided in an aligned manner. The plasterer according to claim 1, wherein the cut is formed by a linear continuous cut by laser processing.

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