JPH09109035A - Manual polishing tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a manual polishing tool provided with dust collecting function of simple constitution. SOLUTION: A grip part 2β is formed at the upper part of tool bodies 1, 2. Sand paper 4 forming sand faces 5 is stuck to the rear face of the tool bodies 1, 2. A dust storage part 3 is formed in a space in the tool bodies 1, 2 and opened to the sand face 5 side along the polishing direction of a manual sander through through-holes 8. Blades 9 are disposed corresponding to the respective through-holes 8, and the tip edges 9γ are slightly protruded onto the sand face 5 side.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a manual polishing tool.

[0002]

2. Description of the Related Art For example, when unevenness is present on the putty surface when a cloth is applied to a wall surface, not only is the fixation of the cloth material deteriorated, but also the surface of the pasted cloth material is affected. Unevenness appears and the finish becomes poor. Therefore, it is necessary to polish the putty surface to eliminate the unevenness as a pretreatment for attaching the cloth material.

Generally, an electric sander or a manual sander is used for this polishing process. However, the electric sander is expensive because it is equipped with a mechanism for driving the sander belt such as an electric motor, and its handling is inconvenient due to the weight of the drive mechanism and wiring. For this reason, at present, the manual sander is widely used due to its convenience.

By the way, dust is generated during the polishing process of the putty surface. However, since the manual sander does not have a dust collecting function, there are problems that dust is diffused around the worker to deteriorate the working environment and the work site is soiled.

Here, for example, in an electric sander,
Some include a dust collecting device that collects dust by the action of a suction pump. Therefore, in order to solve the above-mentioned problem, it is possible to apply this dust collector to a manual sander. However, in that case, the advantage of the manual sander is lost due to an increase in weight due to the dust collector and wiring.

The present invention has been made in view of the problems existing in the above-mentioned prior art, and an object thereof is to provide a manual polishing tool having a dust collecting function with a simple structure.

[0007]

In order to achieve the above object, in the invention of claim 1, a dust accommodating portion is formed in the tool main body, and the dust accommodating portion is opened on the polishing surface side, and the opening corresponds to the same. The manual polishing tool is configured to scrape dust generated during polishing into the dust container by disposing the scraping member.

According to a second aspect of the present invention, the dust container is opened at a plurality of locations at predetermined intervals along the polishing direction,
A scraping member is arranged corresponding to each opening. In the invention of claim 3, the scraping member is urged by the urging means in a direction projecting from the polishing surface.

(Operation) In the invention of claim 1 having the above structure, the polishing surface is polished by bringing the polishing surface into sliding contact with the surface to be polished while holding the gripping portion. The dust generated during the polishing process is scraped into the dust container by the scraping member and accumulated in the dust container.

In the invention of claim 2, the dust container is opened at a plurality of positions along the polishing direction, and the scraping member is arranged corresponding to each opening. Therefore, the dust scraping operation is performed for each scraping member unit, and the dust can be scraped effectively even when the polishing operation of the manual polishing tool is shortened.

In the invention of claim 3, the scraping member comprises:
It is biased by the biasing means in a direction projecting from the polishing surface side. Therefore, when the polishing surface is pressed against the surface to be polished, the scraping member is pressed against the surface to be polished by its urging force, and the scraping action of dust by the scraping member is enhanced.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment in which the manual polishing tool of the present invention is embodied in a manual sander will be described below. 1A, the left side is the front side and the right side is the rear side.

FIG. 1A is a vertical sectional view of a manual sander,
(B) is a cross-sectional view of the central portion of the manual sander,
FIG. 2 is an enlarged sectional view of an essential part showing a usage state.
As shown in these drawings, the base plate 1 made of an aluminum (including aluminum alloy) material has a rectangular shape. The body 2 is formed by cutting wood. The recess 2α is formed on the back side of the body 2,
The body 2 extends in the front-rear direction. The grip portion 2β is formed on the upper portion of the body 2, and both sides of the grip portion 2β are bulged to make it easy for an operator to grip.

The body 2 is adhesively fixed to the upper surface of the base plate 1. Therefore, the concave portion 2 of the body 2
The opening of α is sealed by the base plate 1 to form a closed space, and the closed space forms the dust container 3 in the present embodiment. The discharge port 2γ is formed on the front surface of the body 2 to open the dust container 3 to the front side. The base plate 1 and the body 2 form a tool body.

The sand paper 4 has a sand surface 5 which is a polishing surface on the back surface side. The sandpaper 4 is attached and fixed to the back surface side of the base plate 1 via a double-sided tape material 6 (only shown in the enlarged view of FIG. 2) attached to the upper surface side. The sandpaper 4 is shorter than the length of the base plate 1, and a plate 7 made of a synthetic resin material is adhesively fixed to a rear space on the back surface of the base plate 1 which is vacant by the difference. The thickness of the plate 7 is substantially the same as the thickness obtained by adding the double-sided tape material 5 to the sand paper 4, and the back surface of the plate 7 and the sand surface 5 are flush with each other.

The three through holes 8 are arranged at a predetermined equal interval along the polishing direction (forward direction) of the manual sander, and penetrate the base plate 1 and the sand paper 4 or the plate 7, respectively. The through holes 8 open the dust container 3 to the sand surface 5 side at the formation position thereof. Of the three through holes 8, two on the front side are opened on the sand surface 5 and divide the sand surface 5 into three equal parts. The partitioned sand surfaces 5 and the through holes 8 are in one-to-one correspondence from the front side in order.

The blade 9 as a scraping member
Are arranged corresponding to the through holes 8 and the sand surfaces 5 of each set. That is, the blade 9 is formed by bending a plate material made of an elastic material. The blade 9 is screwed and fixed to the opening edge portion of the through hole 8 on the upper surface of the base plate 1 by the fixing portion 9α. The inclined portion 9β is inclined downward from the front end edge of the fixed portion 9α toward the front side. Therefore, the inclined portions 9β extend in the corresponding through holes 8, and the tip edges 9γ thereof are slightly projected to the sand surface 5 side. The tip edge 9γ is sharpened so that the tip edge of the blade 9 is folded back to form a cutting edge.

Next, the operation of this embodiment will be described with reference to FIG. In addition, in the same figure, 11 has shown the indoor wall erected in the perpendicular direction. The interior wall 11 is in the middle of cloth construction, and a veneer surface 11α is coated with a putty agent and dried to form a putty surface 11β. The operator faces the putty surface 11β by holding the grip portion 2β of the manual sander, and the sand surface 5 with the discharge port 2γ facing upward.
Is pressed against the putty surface 11β. Then, by moving the manual sander vertically upward (direction of arrow A) which is the polishing direction in this pressing state, each sand surface 5 and putty surface 1 are moved.
The putty surface 11β is polished by sliding contact with 1β.

The dust F is generated by the polishing process of the putty surface 11β, and most of the dust F is adhered to the putty surface 11β (the thickness of the dust F is exaggerated in FIG. 2). . However, in the manual sander of this embodiment, the blades 9 are arranged corresponding to the respective sand surfaces 5 and the through holes 8. Therefore, at the time of the polishing process, the blade 9 is moved by its elastic force to the tip edge 9γ.
Are pressed against the putty surface 11β, and the tip edge 9γ is slid subsequently to the sanded surface 5 and the polished putty surface 11β. As a result, the dust F attached to the putty surface 11β is scraped off by the tip edge 9γ.

The dust F scraped off by the blade 9 in the above-described manner is the inclined portion 9β and the through hole 8 of the blade 9.
Being guided by the inner wall surface of the dust container 3 and taken into the dust container 3. As described above, the manual sander has a vertical relationship with the discharge port 2γ facing upward, and the dust F taken in falls and accumulates at the rear end side of the dust container 3 as shown by the dotted line.
The dust F accumulated in the dust container 3 can be arbitrarily discharged through the discharge port 2γ by turning the manual sander upside down from the use state.

As described above, by providing the manual sander with the dust collecting function, it is possible to prevent the dust F from diffusing around the worker and deteriorating the working environment, and the work site from becoming dirty.

As described above, the length of the sand paper 4 is shorter than the length of the base plate 1, and the plate 7 is arranged in the empty space on the back surface of the base plate 1. That is,
For example, even if a sand surface is provided instead of the plate 7, since the blade 9 and the through hole 8 that follow the sand surface do not exist during the polishing process, the dust F generated on the sand surface is contained. This is because it cannot be scraped into the portion 3.

The present embodiment having the above-mentioned structure has the following effects. (1) The dust F attached to the putty surface 11β is scraped into the dust container 3 by the blade 9 that slides on the putty surface 11β during the polishing process. With such a simple configuration, the manual sander can be provided with a dust collecting function, and it is possible to prevent deterioration of maneuverability and an increase in cost due to the provision of a large-scale dust collecting device.

(2) The dust container 3 is in the polishing direction (arrow A)
The blade 9 is opened at a plurality of positions, and the blade 9 is arranged corresponding to each opening. Therefore, the dust F is scraped off by each blade 9 unit, and the dust F is effectively scraped even when the manual sander is used with a short polishing distance.

(3) The blade 9 presses its tip edge 9γ against the putty surface 11β by its own elastic force. Therefore, the followability of the tip edge 9γ to the putty surface 11β is improved, and the scraping effect of the dust F is enhanced. Further, since the elastic member itself has an elastic force, it is not necessary to separately provide a biasing means, and the number of parts can be reduced.

(4) The tip edge 9γ of the blade 9 is sharpened so that the tip edge of the blade 9 is folded back and a cutting edge is formed at the folded back portion. Therefore, the blade 9 as a whole is secured in flexibility and the tip edge 9γ is secured in rigidity. Therefore, the scraping effect is enhanced.

The following embodiments can be carried out without departing from the spirit of the present invention. (1) Change the blade 9 to make it a brush body. (2) The blade 9 is made of a spring material such as a coil spring.
Biasing in the direction of protruding from the sander surface 5 side.

(3) Only one set of divided sander surface 5, through hole 8 and blade 9 is provided. (4) In the above-described embodiment, it is embodied as a putty leveling tool for cloth construction. However, the present invention is not limited to this, and may be embodied as, for example, unevenness treatment of the wall surface (the veneer surface 11α in the above-described embodiment), unevenness adjustment of the floor surface, or leveling of the mortar surface. .

(5) The double-sided tape material 6 is changed so that the concave or convex side of the surface fastener is provided on the back surface of the base plate 1 and the sand paper 4 is used.
The opposite side is attached to the upper surface of and the sand paper 4 is detachably attached to the base plate 1 by a double-sided fastener.

The technical idea that can be understood from the above embodiment will be described. The manual polishing tool according to claim 3, wherein the scraping member 9 is made of an elastic material, and the elastic force of the scraping member 9 serves as a biasing means.

By doing so, it is not necessary to separately provide a spring material or the like, and the number of parts can be reduced.

[0032]

According to the invention of claim 1 having the above structure, the manual sander can be provided with the dust collecting function with a simple structure, and the maneuverability is deteriorated by providing a large-scale dust collecting device, and the cost is reduced. It can be prevented from becoming high.

According to the second aspect of the present invention, the dust can be effectively scraped off even when the manual sander is used with a short polishing distance. According to the invention of claim 3, the dust scraping effect is improved.

[Brief description of the drawings]

FIG. 1A is a vertical sectional view of a manual sander, and FIG. 1B is a lateral sectional view of a manual sander.

FIG. 2 is a diagram showing a use state of the manual sander, which is an enlarged sectional view of a main part.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Base plate which comprises a tool main body, 2 ... Body which comprises a tool main body, 3 ... Dust accommodating part, 8 ... Through hole which opens a dust accommodating part to the polishing surface side, 9 ... Blade as a scraping member, F …dust.

Claims (3)

[Claims] 1. A manual polishing tool having a tool body having a gripping portion and a polishing surface, wherein a dust accommodating portion is formed in the tool body, and the dust accommodating portion is opened on the polishing surface side. A manual polishing tool configured to scrape dust generated during polishing into the dust container by disposing a scraping member correspondingly. 2. The manual polishing tool according to claim 1, wherein the dust accommodating portion is opened at a plurality of positions at predetermined intervals along the polishing direction, and a scraping member is arranged corresponding to each opening. 3. The manual polishing tool according to claim 1, wherein the scraping member is biased by a biasing means in a direction projecting from the polishing surface side.