Calking trowel

Abstract

The present invention provides a caulking spatula that enables delicate touch work in a natural posture during caulking work in a narrow space, and a backing (rigid sponge) formed in a flaring shape can be detachably attached to one flat side of the spatula. 【Solution means】In order to enable work with delicate force adjustment in a natural posture, a spatula plate 1 refracted at an appropriate angle in a substantially V shape with respect to the gripping portion 2, and a backing (rigid sponge) 3 formed in a flaring shape larger than the spatula plate 1 on one flat side of the spatula plate 1. The tip of the acute inclined surface of the surface of the backing (rigid sponge) 3 whose back surface can be detachably attached with a double-sided tape 4 is abutted so as to intersect at the joint, and along the joint groove, while being pressed and moved by the smooth transmission of force according to the bending angle of the spatula plate 1, internal air bubbles and voids are removed, and the caulking material is made smooth.

Description

Technical Field

[0001] The present invention relates to a caulking spatula used to level a caulking material. The spatula plate is bent at an appropriate angle to improve working efficiency, and by pressing and moving with the force adjustment due to the bending angle, air bubbles and voids inside the caulking material injected into the joint are removed.

Background Art

[0002] As a conventional technique, there are stainless steel spatulas and plastic spatulas as hard-type spatulas, which are formed linearly from the gripping part to the spatula plate, and the tip of the spatula plate is substantially flat and thin. As a soft-type spatula, there is a self-made sponge spatula with a backer (hard sponge) attached to the head using chopsticks, wooden spatulas, etc. Different-shaped spatulas were used according to the application.

Prior Art Documents

[0003]

Patent Documents

Patent Documents

Summary of the Invention

[0004] Conventional straight spatulas have difficulty in achieving a clean finish with a delicate touch because the force is transmitted straight to the sealing material. Especially in narrow spaces with limited construction space, such as the back side of a gutter, near the vertical axis of a scaffold, or where window sashes are close together, it is necessary to bend the spatula forcibly or insert the hand or arm unnaturally to perform the work. In such construction with forced postures and uneven application of force, there is a high risk that the spatula or hand will interfere with the construction area and its surroundings, soiling areas outside the construction area, resulting in claims and rework for the finishing work. The working posture is also poor, and the physical burden on the hands and waist is large. In addition, conventional hard-type spatulas are made of hard materials, and if there are irregularities on the surface of the object, the spatula will vibrate and form a chatter mark. Also, plastic spatulas are worn down at the tip with use, and the finish becomes uneven. On the other hand, with a self-made soft sponge spatula, it is necessary to make a spatula according to the width of the injection location of the caulking material, which is time-consuming. Also, when spreading the caulking material, while pushing the tip of the spatula along the joint groove and removing the extruded caulking material, it is difficult to perform stable construction with a large resistance with a flat tip shape. The present invention aims to provide a caulking spatula with a structure that can appropriately bend the spatula plate and is configured to be able to removably attach a backing (hard sponge) formed in a flaring shape to one flat side of the spatula plate in order to solve the above problems.

Means for Solving the Problems

[0005] The present invention first forms the spatula plate into a shape that is appropriately bent in advance, thereby enabling work in narrow spaces and free adjustment of the applied force. Furthermore, the surface of the backing (hard sponge) is formed in a flaring shape larger than the spatula plate, and it is removably attached to one flat side of the spatula plate with double-sided tape provided on the back surface of the backing (hard sponge). Note that the problem is solved by making the back surface of the backing (hard sponge) the same shape as the plane of the spatula plate.

Effects of the Invention

[0006] As described above, the spatula plate is provided with an angle in advance, enabling finishing work in a natural posture without the hand or spatula interfering with the construction site or its surroundings even in narrow spaces. This reduces dirt, claims, and the risk of rework, which are prone to occur during finishing. Furthermore, by reducing the need for forced postures during work, the burden on the operator's waist and wrists is also reduced, leading to a shortening of the cleaning time.

[0007] Also, the surface of the backer (rigid sponge) is formed in a flaring shape larger than the spatula plate. That is, the side surface of the backer (rigid sponge) is inclined, and the shape of the tip is V-shaped. Therefore, when removing the excess caulking material injected into the narrow corner, the resistance received by the spatula tip is reduced. In addition, the force is transmitted smoothly by the pre-bent spatula plate, ensuring the removal of bubbles and voids, and enabling a stable operation to achieve a beautiful surface finish.

[0008] Furthermore, since the backer (rigid sponge) has flexibility, the V-shaped tip bends and deforms according to the amount of force applied by the operator, enabling it to adapt to objects of different widths. Therefore, even if the surface of the object is uneven, it is not significantly affected.

[0009] And, since a detachable double-sided tape or the like is provided on the back surface of the backer (rigid sponge) and attached to the spatula plate, the replacement work can be carried out smoothly, improving the work efficiency.

[0010] Also, since the backer (rigid sponge) can be selected from hard to soft products by combining a base material and synthetic rubber, by selecting the optimal backer with the preferred hardness, it is possible to respond to different objects.

[0011] As described above, the present invention contributes to the comprehensive improvement of the working environment, such as responding to narrow-space work, improving construction quality, improving work efficiency, and reducing the physical burden on workers.

Brief Explanation of Drawings

[0012]

Figure 1

Figure 2

Mode for Carrying Out the Invention

[0013] The present invention is composed of a spatula plate bent at an appropriate angle in a substantially V shape with respect to the gripping portion and a backing (rigid sponge) having a back surface with the same shape as the plane of the spatula plate. The surface of the backing (rigid sponge) is larger than the plane of the spatula plate and forms an acute inclined surface in a flaring shape, and a detachable double-sided tape or the like is provided on the back surface so that it can be attached to one plane side of the spatula plate. Hereinafter, an embodiment will be described with reference to the accompanying drawings.

Embodiment

[0014] FIG. 1 and FIG. 2 are a front view and an enlarged cross-sectional view of a partial cutout of the present invention. The spatula plate 1 is bent at an appropriate angle in a substantially V shape with respect to the gripping portion 2 of a substantially spatula-shaped flat plate formed by cutting a thin and elastic metal plate such as stainless steel. 3 is a backing (rigid sponge) having a surface formed in a flaring shape larger than that of the spatula plate 1. 4 is a double-sided tape attaching the spatula plate 1 and the backing (rigid sponge) 3.

[0015] Since the present invention has the above configuration, the spatula plate is provided with an angle in advance, so that the hand or spatula does not interfere with the construction site even in a narrow place, and the finishing work can be done with a natural movement without extra force or an awkward posture. In addition, the surface of the backer (hard sponge) 3 is formed in a flaring shape larger than the spatula plate 1. That is, the side surface of the backer (hard sponge) 3 is inclined, and the shape of the tip portion is V-shaped. It is detachably attached to one flat side of the spatula plate 1 with a double-sided tape 4 provided on the back surface of the backer (hard sponge) 3. Note that the back surface of the backer (hard sponge) 3 has the same shape as the flat surface of the spatula plate 1. To use this, hold the gripping portion 2 by hand, abut the tip of the backer (hard sponge) 3, which is in an acute V-shape on the surface, so as to intersect the joint, and along the joint groove, the force is smoothly transmitted by the bent spatula plate, and while moving the pressing process, the internal bubbles and voids are removed, and the caulking material is made smooth. Furthermore, since various backers (hard sponges) 3 from hard to soft are prepared, the optimal backer (hard sponge) 3 can be selected according to the use of the object. In addition, since the backer (hard sponge) 3 is detachably attached by a double-sided tape 4 or the like, it can be easily replaced.

Industrial Applicability

[0016] The present invention is used in the industry of manufacturing spatulas for caulking.

Explanation of Symbols

[0017] 1 Spatula plate 2 Gripping portion 3 Backer (hard sponge) 4 Double-sided tape

Claims

1. A caulking spatula comprising a grip and a spatula plate, the spatula plate being bent as required.

2. A caulking spatula as described in claim 1, characterized in that the surface of the backer (sponge and rubber) attached to the spatula plate is formed larger and fan-shaped than the spatula plate, and the back surface of the backer (sponge and rubber) is removably attached to one flat surface of the spatula plate.

Images