JPH08424Y2 - Plasterer - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION This invention is a plastering trowel that allows the trowel plate to be freely attached to and detached from the handle and allows the trowel plate to be replaced.

[0002]

2. Description of the Related Art There are many inventions for plastering irons in which a conventional trowel plate can be replaced. For example, this is a tool such as a screwdriver which is provided with a stopper formed by separately forming a handle engaged with the trowel plate. However, this means that a special tool is required to replace the trowel plate and it is troublesome to perform the work. If this is not done, distortion will occur in the mortarboard and smoothing work will not be possible, and these means are difficult to remove once the mortarboard is fastened to the handle.

[0003]

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention As described above, in the conventional plaster trowel, the trowel plate in which the trowel plate is detachably attached to the handle and the trowel plate is fastened is replaceable. Since it is attached by screwing means, a screwdriver tool such as a screwdriver bit is required to operate the screw, and if the tool for operation is not prepared on the spot, the mortarboard can be replaced. What you cannot do, and when screwing the mortarboard to the handle, if you do not tighten each screw with accurate and uniform pressure, the mortarboard will be distorted and it will hinder the leveling work of concrete surface etc. It becomes difficult to do. Also, if the mortarboard is worn out after a long period of use and the screw is loosened in an attempt to replace the mortarboard, mortar etc. will be clogged with the screwdriver bit engaging part, and Since the screw cannot be loosened because it cannot be engaged and the mortarboard cannot be replaced, the plaster trowel must be discarded, or even if the screwdriver bit engages the screw well It is difficult to remove the screw from the plaster trowel by making it difficult to remove it from the plaster trowel by rusting the iron and not being able to loosen the screw and forcibly rotating the screw and damaging the engaging part of the screw with the driver bit. It is something. In view of the above, the present invention intends to provide a plaster trowel that allows the trowel plate to be replaced easily and easily without using a special tool, and allows the trowel plate to be accurately and surely attached to the handle. .

[0004]

In order to achieve the above-mentioned object, the present invention achieves the above object by connecting the trowel plate engaging portion 4 of the handle body 2 and the trowel plate 1 so that the handle body 2 is detachably engaged with the trowel plate 00. It is assumed that the handle body support portion 3 engages with a dovetail by a dovetail groove engagement, and a trowel plate engagement portion 4 capable of being bent at the groove end portion of the handle body support portion 3 of the trowel plate 1.
The locking piece 5 is provided, bent toward the engaging piece 5 over the鏝板engaging portion 4,鏝板engagement of the handle body 2 to engage the distal end portion 5 ₁ the handle body supporting portion 3 of the It is detachably engaged with the inside of the engaging hole 6 of the locking piece 5 provided on the upper surface of the portion 4.

[0005]

The present invention, when engaging the trowel plate 1 with the handle 2,
The dovetail-shaped trowel plate engaging portion 4 of the handle 2 is provided on the groove end portion of the handle body supporting portion 3 when it is fitted into the handle body supporting portion 3 having the dovetail groove on the upper surface of the mortar board 1 and positioned at a predetermined position. The locking piece 5 of the mortarboard engaging portion 4 that enables folding is bent upward of the mortarboard engaging portion 4 and the locking piece 5 is moved above the mortarboard locking portion 4 to the mortarboard locking portion. 4 by bending the tip end 5 ₁ of the engaging piece 5 into the engaging hole 6 of the engaging piece 5 provided on the mortarboard engaging part 4 to engage the iron body 2 of the handle 2. The plate engaging portion 4 is restricted in the handle body supporting portion 3 from moving in the upper opening direction of the dovetail groove of the handle body supporting portion 3 and in the groove end direction of the dovetail groove.

The locking piece 5 can be bent easily and easily without using a special processing machine, because the locking piece 5 itself is made of a soft iron plate or an easily deformable plate such as aluminum.鏝板engaging portion 4 Simply slide the folded tip 5 ₁ in the engaging hole 6 of鏝板engaging portion 4 so as to be in close contact with the opposing end surface and the upper surface of the locking piece 5 of the handle body supporting portion 3 Regulates its movement in the longitudinal direction.

Further, the disengagement of the handle body support portion 3 from the mortar plate engagement portion 4 due to the lifting is caused by the trowel plate engagement portion 4 and the handle body support portion 3 being the dovetail engagement by the dovetail and the dovetail groove. The plate engaging portion 4 is restricted from floating above the handle body supporting portion 3.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the accompanying drawings. The drawing shows a plastering iron comprising a rectangular mortar plate called a square trowel. In addition to this, the front end portion of the above square trowel is also shown. There is also a plasterer with a triangle and a round shape. In the drawings, 1
Is a mortar plate made of a steel plate. The mortar plate 1 may be made of a steel plate, a plastic plate, an aluminum alloy plate, a stainless steel plate, a wooden plate, or the like. Then,鏝板1, there is provided a handle body supporting portion 3 having a dovetail 3 ₁ toward the longitudinal direction on the plate surface, strong adhesion in the examples and鏝板1 and the handle body support 3 Although it is joined by an agent, it may be joined by welding (electrical spot welding), tacks, screws or the like. The point is that the handle support portion 3 is attached to the mortar plate 1. Any material can be used as long as it can be joined without damaging the mortarboard 1.

The handle body supporting portion 3 may be formed by bending a soft iron plate which is easily bent, or formed by drawing a metal rod, cutting, casting or the like, and the material is iron or aluminum. It may be a num alloy, plastic or the like, as long as it can hold the trowel plate engaging portion 4 of the handle 2.

[0010] 2 in the handle body to be used in painting operations and gripped by the hand holding the鏝板1, made of iron, which was projected on the lower surface of the bunch handle 2 ₁ of wood or plastic of Eashi 2 ₂ and Eashi 2 ₂ It consists of a dovetail-shaped rod that was installed earlier.

[0011] The handle body 2 is detachably engaged with dovetail engagement鏝板engaging portion 4 of Eashi 2 ₂ to the handle body supporting portion 3 of鏝板1 by ants 4 ₁ and the dovetail groove 3 ₁ It was done. The engagement between the trowel plate engaging portion 4 and the handle body supporting portion 3 is a dovetail engagement in the embodiment,
In addition, the engagement may be the same as that of the dovetail engagement.

Numeral 5 is an ant 4 _{1 which is} engaged with a dovetail groove 3 ₁ of the handle support portion 3.
When the mortarboard engaging portion 4 forming the
Is a locking piece for preventing movement in the longitudinal direction of the handle body supporting portion 3. The locking piece 5 is provided at the groove end portion of the handle body supporting portion 3, and the embodiment is made of a soft metal. Although it is formed integrally with the handle body support portion 3, in addition to this, only the locking piece 5 is formed of a soft metal plate, for example, a soft iron plate or an aluminum alloy plate, and the like. The engaging piece 5 may be attached to the groove bottom at the groove end by tacks, screws, electric spot welding, or the like, and the locking piece 5 may be installed so as to project toward the outside of the handle body supporting portion 3.

After that, the engagement of the locking piece 5 with the trowel plate engaging portion 4 initially projects forward from the front end surface of the handle body supporting portion 3 as shown by the chain line in FIG. As shown in 2,
It is bent upward along the front end face of the mortarboard engaging portion 4 and is bent again at the upper corner of the front end face of the mortarboard engaging portion 4 so as to be attached to the upper surface of the mortarboard engaging portion 4 and the locking piece 5 the distal end portion 5 ₁鏝板engaging portion 4 by inserting into the engaging hole 6 provided on the upper surface of鏝板engaging portion 4 bent downward in the handle body support 3
Fixed to.

When removing the trowel plate engaging portion 4 from the handle body supporting portion 3, that is, when removing the trowel plate 1 from the handle body 2, the portion of the locking piece 5 corresponding to the upper surface of the mortar plate engaging portion 4 is removed. lifting the鏝板engaging portion 4 tip portion 5 ₁ is disengaged in the engaging holes 6 are the handle body support 3
When the regulation of the movement inside is released and the trowel plate engaging portion 4 is moved in the rearward direction of the handle body supporting portion 3, the trowel plate 1 is disengaged from the handle body 2. The locking piece 5 is provided on the front end surface side of the handle body support portion 3 in the embodiment, but it may be provided on the rear end surface side or the front and rear end surfaces on the contrary. By engaging the portion 5 ₁ with the engaging hole 6 of the trowel plate engaging portion 4, the distal end portion 5 ₁ of the locking piece 5 is bent and inserted into the engaging hole 6 to insert the trowel plate engaging portion 4 as in the embodiment. In addition to the means for preventing the handle body 3 from coming off, the tip 5 ₁ of the locking piece 5 may be provided with a protrusion that engages with the engagement hole 6.

[0015]

According to the present invention, in the plastering iron in which the trowel plate can be replaced, the trowel plate engaging portion 4 which is easily attached to and detached from the handle body 2 of the trowel plate 1 and which is engaged with the handle body supporting portion 3 is provided. By restricting the longitudinal movement of the handle support portion 3 and releasing it,
The movement of the trowel plate engaging portion 4 can be regulated and released, and its operation can be performed by engaging and disengaging the locking piece 5 of the handle support portion 3 with the mortar plate engaging portion 4 without using a special tool. This can be easily done only by bending and extending the engaging piece 5.

The trowel plate engaging portion 4 engaged with the handle body supporting portion 3 is fixed to the handle body supporting portion 3 by inserting the locking piece 5 into the trowel plate engaging portion 4 so that the handle body supporting portion 3 is accurately, surely and firmly fixed. Since the locking piece 5 is also plate-shaped, it is not particularly noticeable, and even if it is used, the coating material such as mortar does not adhere and the function of the locking piece 5 is impaired. It is possible to repeat the engagement and disengagement with respect to the trowel plate engaging portion 4 without being damaged and to smoothly replace the trowel plate.

Further, when manufacturing the plastering iron of the present invention, it is difficult to provide the engaging piece 5 on the handle support portion 3 and the engaging hole 6 of the engaging piece 5 on the trowel plate engaging portion 4. Because there is no
The plasterer trowel can be provided to the user at a low price without increasing the price, and because of its simple structure it does not break down, it can be used for a long time and the trowel plate can be easily replaced. The effect that can be swiftly produced.

[Brief description of drawings]

FIG. 1 is a perspective view of a plastering iron of the present invention,

FIG. 2 is an enlarged fractured sectional view of an engaging portion between a trowel plate and a handle,

FIG. 3 is a side view of the present invention,

FIG. 4 is a cross-sectional view showing a dovetail engagement between the handle support portion of the trowel plate and the trowel plate engaging portion of the handle.

FIG. 5 is a cross-sectional view showing another embodiment in which a locking piece is provided on the handle support portion.

[Explanation of symbols]

1 trowel plate 2 handle 2 ₁ handle 2 ₂ handle leg 3 handle support 3 ₁ dovetail groove 4 mortar plate engaging part 4 ₁ dove 5 locking piece 5 ₁ tip 6 engaging hole

Claims (1)

[Scope of utility model registration request] _{1. A} dovetail 41 and a dovetail groove between a trowel plate engaging portion 4 of the handle body 2 and a handle body supporting portion 3 of the trowel plate 1 so that the handle body 2 is detachably engaged with the trowel plate 1. In the _one engaged by the dovetail engagement by 31,
A locking piece 5 of a trowel plate engaging portion 4 which can be bent is provided at a groove end portion of the handle body supporting portion 3 of the mortar board 1, and the locking piece 5 is bent on the mortar plate engaging portion 4 and a tip portion thereof is provided. 5 ₁ is detachably engaged with the engaging hole 6 of the engaging piece 5 provided on the upper surface of the trowel plate engaging portion 4 of the handle 2 which engages with the handle supporting portion 3. Plasterer