JP2020159108A - Dust trowel - Google Patents

Abstract

To provide a dust trowel which facilitates handling, can reduce a physical burden on a worker, and can efficiently perform a leveling work around dust.SOLUTION: A dust trowel 10 includes a trowel plate material 1 having a rectangular shape with round corners in plan view, and a handle member 4 which is mounted on a reinforcement member 2 stuck to an upper surface 1a of the trowel plate material 1 through connection means 3. The rectangular flat plate-like reinforcement member 2 is stuck to a center portion of the trowel plate material 1 in a length L direction of the trowel plate material 1. In the dust trowel 10, a length L of the trowel plate material 1 is set at 350 mm, a width W thereof is set at 130 mm and a thickness T thereof is set at 0.5 mm, and a length of the handle member 4 is set at 1,500 mm.SELECTED DRAWING: Figure 1

Description

The present invention relates to a dust trowel used for leveling work of a peripheral portion of a concrete floor surface before solidification, so-called leveling work around dust.

In the construction work of the floor surface of a concrete building or a concrete structure, when the leveling work of the peripheral portion F1 of the concrete floor surface F, the so-called leveling work around the dust, is performed, it is conventionally solidified as shown in FIG. On the front concrete floor surface F, a skilled worker W takes a bent posture and works while moving the plasterer 100 held in one hand back and forth and left and right.

On the other hand, as the prior art related to the present invention, for example, there are "concrete floor finish leveling trowel" described in Patent Document 1 and "long handle tool" described in Patent Document 2.

Registered Utility Model No. 3109355 Japanese Unexamined Patent Publication No. 2007-92376

As shown in FIG. 5, in the conventional leveling work around the dust, the worker W keeps the posture of bending the waist and holds the plasterer 100 along the peripheral edge F1 of the concrete floor surface F for a long time. Since it is necessary to keep moving back and forth and left and right, the physical burden is heavy. In particular, when constructing a concrete floor surface having a vast area such as a large-scale factory, since the length of the peripheral portion thereof is long, it is necessary for a large number of workers W to perform the work for a long time. The physical burden on the worker W is also great, and the work efficiency is poor.

Further, as shown in FIG. 5, the manual leveling work using the plastering trowel 100 can be performed only by the skilled worker W, and therefore, in recent years, there is a shortage of skilled workers. In, the construction period is delayed due to labor shortage.

On the other hand, the "concrete floor finishing leveling trowel" described in the patent document and the "long handle tool" described in the patent document 2 have a relatively long handle (long handle), and therefore are general concrete floors. Although it is possible to reduce the labor of the operator in the surface leveling work, it is not suitable for the leveling work around the dust, and a good leveling work cannot be performed.

Therefore, the problem to be solved by the present invention is to provide a dust trowel that is easy to handle, can reduce the physical burden on the operator, and can efficiently perform the leveling work around the dust. is there.

The first trowel according to the present invention has a length of 150 mm to 500 mm, a width of 100 mm to 150 mm, and a thickness of 0.3 mm to 0.5 mm on a trowel plate material and an upper surface of the trowel plate material. It is characterized by including a handle member attached via a connecting means.

The second trowel according to the present invention has a trowel plate material having a length of 300 mm to 450 mm, a width of 150 mm to 400 mm, and a thickness of 10 mm to 40 mm, and a connecting means to the upper surface of the trowel plate material. It is characterized by having a handle member attached to the trowel.

In the first and second trowels, it is desirable that the length of the handle member is 1000 mm to 2000 mm.

In the first and second trowels, it is desirable that the connecting means have an angle adjusting mechanism for changing the attachment posture of the handle member with respect to the trowel plate material.

In the second trowel, it is desirable that at least a pair of opposite edge portions of the trowel plate material have a convex curved surface shape.

In the second trowel, a plurality of concave portions can be scattered on the lower surface of the trowel plate material.

According to the present invention, it is possible to provide a dust trowel that is easy to handle, can reduce the physical burden on the operator, and can efficiently perform the leveling work around the dust.

It is a partially omitted perspective view which shows the dust trowel which is the 1st Embodiment of this invention. It is a partially omitted enlarged view of the vicinity of the trowel plate material constituting the trowel shown in FIG. It is a partially omitted perspective view which shows the dust trowel which is the 2nd Embodiment of this invention. It is a bottom view of the trowel plate material which constitutes the trowel shown in FIG. It is a partially omitted perspective view which shows the conventional leveling work around dust.

Hereinafter, the dust trowels 10 and 20 according to the first and second embodiments of the present invention will be described with reference to FIGS. 1 to 4.

First, the dust trowel 10 according to the first embodiment of the present invention will be described with reference to FIGS. 1 and 2. As shown in FIGS. 1 and 2, the dust trowel 10 is attached to a trowel plate material 1 having a rounded quadrangular shape in a plan view and a reinforcing member 2 fixed to an upper surface 1a of the trowel plate material 1 via a connecting means 3. It is provided with a trowel member 4. The rectangular flat plate-shaped reinforcing member 2 is fixed to the central portion of the trowel plate member 1 along the length L direction of the trowel plate member 1.

The connecting means 3 includes a pedestal portion 3a fixed to the central portion of the reinforcing member 2, a rotating member 3b having one end detachably attached to the pedestal portion 3a via a screw N1, and a rotating member. An undulating member 3c, which is detachably attached to the other end of the 3b via a screw N2, is provided. The tip end portion of the handle member 4 is detachably connected to the base end portion 3d of the undulating member 3c via a connecting cylinder 5 and a screw N3.

If the screw N1 is loosened, the rotating member 3b can rotate around the pedestal portion 3a, and if the screw N2 is loosened, the undulating member 3c can undulate around the screw N2, and thus is connected to the undulating member 3c. The handle member 4 is rotatable and undulating around the connecting means 3. That is, the connecting means 3 has an angle adjusting mechanism for changing the mounting posture of the handle member 4 with respect to the trowel plate member 1.

As shown in FIG. 2, in the trowel 10, the length L of the trowel plate material 1 is 350 mm, the width W is 130 mm, the thickness T is 0.5 mm, and the length of the handle member 4 is 1500 mm. There is. The material of the trowel plate material 1 is preferably a metal plate (for example, a steel plate) similar to that of a general plasterer, but is not limited to this.

The usage of the trowel 10 is not limited, but for example, as shown in FIG. 1, the lower surface (opposite surface of the upper surface 1a) of the trowel plate material 1 of the trowel 10 brought to the peripheral edge F1 of the concrete floor surface F before solidification is used. When the worker (not shown) grasps the handle member 4 by hand and moves the trowel plate material 1 back and forth and left and right along the concrete floor surface F by bringing it into contact with the concrete floor surface F, the dust circumference (peripheral portion F1) Can perform leveling work.

Since the length of the handle member 4 of the trowel 10 is 1200 mm, the operator can level the handle member 4 of the trowel 10 in an upright posture by grasping an appropriate position of the handle member 4 of the trowel 10 according to his / her height. It is possible to carry out the work, and the physical burden on the worker can be reduced. Further, since the trowel 10 only needs to slide the trowel plate material 1 along the concrete floor surface F with the handle member 4 grasped by hand, it is easy to handle and the trowel circumference is efficiently leveled. It can be carried out.

As described above, in the trowel 10, the length L of the trowel plate material 1 is 350 mm, the width W is 130 mm, the thickness T is 0.5 mm, and the length of the handle member 4 is 1500 mm. Since the dimensions are not limited to these, the length L of the trowel plate material 1 is in the range of about 150 mm to 500 mm, the width W is in the range of about 100 mm to 150 mm, and the thickness T is in the range of 0.3 mm to 0.5 mm. The length of the handle member 4 can be arbitrarily set within the range of about 800 mm to 1600 mm.

Next, the dust trowel 20 according to the second embodiment of the present invention will be described with reference to FIGS. 3 and 4. In the dust trowel 20 shown in FIGS. 3 and 4, the parts common to the above-mentioned trowel 10 are designated by the same reference numerals as those in FIGS. 1 and 2, and the description thereof will be omitted.

As shown in FIGS. 3 and 4, the dust trowel 20 includes a trowel plate member 21 having a quadrangular plan view shape and a handle member 4 attached to the upper surface 21a of the trowel plate material 21 via a connecting means 3. There is. As described above, the connecting means 3 has an angle adjusting mechanism for changing the mounting posture of the handle member 4 with respect to the trowel plate member 21.

As shown in FIG. 3, in the trowel 20, the length L of the trowel plate member 21 is 400 mm, the width W is 300 mm, the maximum thickness T is 20 mm, and the length of the handle member 4 is 1200 mm. Further, the pair of peripheral edges 21c and 21c of the trowel plate 21 that face each other have a smooth convex curved surface shape. The material of the trowel plate material 21 is preferably synthetic resin, waterproofed wood, or the like, but is not limited thereto.

Further, as shown in FIG. 4, in the trowel 20, a plurality of concave portions 22, 23, 24 having different shapes are scattered on the lower surface 21b of the trowel plate material 21. The concave portions 22, 23, and 24 all have a U-groove shape that is recessed toward the upper surface 21a (see FIG. 3) of the trowel plate material 21. Since the shape, number, arrangement form, etc. of the concave portions 22, 23, 24 are not limited, they can be set arbitrarily.

The usage of the trowel 20 is not limited, but for example, as shown in FIG. 3, the lower surface 21b of the trowel plate material 21 of the trowel 20 brought to the peripheral edge F1 of the concrete floor surface F before solidification is placed on the concrete floor surface F. When the worker (not shown) grasps the handle member 4 by hand and moves the trowel plate member 21 back and forth and left and right along the concrete floor surface F, the dust circumference (peripheral portion F1) is leveled. be able to.

Since the length of the handle member 4 of the trowel 20 is 1500 mm, the operator can level the handle member 4 of the trowel 20 in an upright posture by grasping an appropriate position of the handle member 4 of the trowel 20 according to his / her height. It is possible to carry out the work, and the physical burden on the worker can be reduced. Further, since the trowel 20 only needs to slide the trowel plate 21 along the concrete floor surface F while holding the handle member 4 by hand, it is easy to handle and the trowel circumference is efficiently leveled. It can be carried out.

Further, in the dust trowel 20, a plurality of concave portions 22, 23, 24 having different shapes are scattered on the lower surface 21b of the trowel plate material 21, so that the lower surface 21b of the trowel plate material 21 is formed along the concrete floor surface F. When slid, the concave portions 22, 23, 24 level the unevenness of the concrete floor surface F, so that an excellent leveling function is exhibited.

As described above, in the trowel 20, the length L of the trowel plate 21 is 400 mm, the width W is 300 mm, the maximum thickness T is 20 mm, and the length of the handle member 4 is 1500 mm. Since the dimensions are not limited to these, the length L of the trowel plate material 1 is in the range of about 300 mm to 450 mm, the width W is in the range of about 150 mm to 400 mm, and the thickness T is in the range of about 10 mm to 40 mm. Further, the length of the handle member 4 can be arbitrarily set in the range of about 800 mm to 1600 mm.

The trowels 10 and 20 described with reference to FIGS. 1 to 4 exemplify the trowels according to the present invention, and the trowels according to the present invention are not limited to the above-mentioned trowels 10 and 20.

The dust trowel according to the present invention can be widely used in industrial fields such as the civil engineering and construction industry and the civil engineering and construction industry as a work tool for leveling the dust around the concrete floor surface before solidification.

1,21 Trowel plate material 1a, 21a Top surface 2 Reinforcing member 3 Connecting means 3a Pedestal part 3b Rotating member 3c Undulating member 3d Base end part 4 Handle member 5 Connecting cylinder 10,20 Dust iron 21b Bottom surface F Concrete floor surface F1 Peripheral part

Claims (6)

A trowel plate material having a length of 150 mm to 500 mm, a width of 100 mm to 150 mm, and a thickness of 0.3 mm to 0.5 mm, and a handle member attached to the upper surface of the trowel plate material via a connecting means. A trowel equipped with. A trowel plate material having a length of 300 mm to 450 mm, a width of 150 mm to 400 mm, and a thickness of 10 mm to 40 mm, and a handle member attached to the upper surface of the trowel plate material via a connecting means are provided. Trowel. The trowel according to claim 1 or 2, wherein the handle member has a length of 1000 mm to 2000 mm. The trowel according to any one of claims 1 to 3, wherein the connecting means has an angle adjusting mechanism for changing the attachment posture of the handle member with respect to the trowel plate material. The trowel according to claim 2, wherein at least a pair of opposite edge portions of the trowel plate material have a convex curved surface shape. The dust trowel according to claim 2, wherein a plurality of concave portions are scattered on the lower surface of the trowel plate material.

Images