JPH0236692Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a disk sander, and more specifically, a disk sander body equipped with a dust collection port connected to a vacuum source, and a dust collection port provided on the disk sander body. A drive motor, a sander disk rotated by the drive motor, a brush surrounding the dust collection port and the sander disk, and at least a portion of the disk sander body that covers the sander disk. This invention relates to a disk sander partially made of transparent material.

Prior Art One method of pre-painting treatment of steel frames, bridges, ships, automobiles, etc. is to remove dust such as rust using a disk sander to clean the painted surface.

However, the dust generated during processing with a disk sander is scattered around and contaminates the environment at the processing site, and is also unfavorable from a health and safety standpoint for workers. There was a need for a disk sander that could quickly collect this.

Considering the above situation, the inventor of the present invention first covered the sander disk with the disk sander body, provided a dust collection port on the disk sander body, and thereby, the sander disk and the disk sander body We proposed a disk sander that can quickly collect dust from the space between the two.

Furthermore, a disk sander is also known in which the disk sander body is made of a transparent material so that the treated surface and the sander disk can be directly viewed (Utility Model Application No. 43980/1983).

Problems to be Solved by the Invention However, even if the disc sander main body is made of a transparent member as described above, this transparent member will quickly become contaminated with dust, making it difficult to clearly see the processing surface and sander disc. The problem is that it becomes impossible to do so.

Means for Solving the Problems According to the present invention, the above problems are solved by the following: a disc sander main body equipped with a dust collection port connected to a vacuum source, a drive motor provided in the disc sander main body, and a drive motor provided with the The sander includes a rotatable sander disk, a brush surrounding the dust collection port and the sander disk, and at least a part of the portion of the disk sander body that covers the sander disk is made of a transparent material. In the disc sander, the disc sander body is provided with a hole that communicates the outside and the inside thereof, and a portion of the disc sander body made of a transparent material is provided with a hole formed by the action of a vacuum source. The problem is solved by providing a disk sander characterized in that it is located on the air flow from the dust collection port to the dust collection port.

Function Since the disc sander of the present invention is constructed as described above, the hole communicating between the outside and the inside of the disc sander main body sucks clean air containing almost no dust. Then, under the action of the vacuum source, an air flow is created that flows from the hole along the section made of transparent material to the dust collection port.

The air flow from the hole formed in this way to the dust collection port prevents dust from coming into contact with the part made of the transparent material, thereby preventing the dust from coming into contact with the part made of the transparent material. prevents it from adhering to or damaging it, and maintains clear visibility.

Practical Example Next, with reference to the attached drawings Figures 1 and 2,
A preferred specific example of the present invention will be explained.

The disk sander of this specific example includes a disk sander main body 10, a drive motor 12, a sander disk 14, and a brush 16.

The disk sander main body 10 has a dust collection port 18.
is provided, and the dust collection port 18 communicates via a conduit 20 and a flexible hose 22 to a vacuum source (not shown). A general electrostatic precipitator can be used as a vacuum source. It is preferable that the disc sander main body 10 is provided with a side handle (not shown) to facilitate manual operation. The disc sander main body 10 includes a frame 21 that covers the sander disc 14, and the frame 21 is composed of an upper plate 25 made of a transparent material and a side plate 27 made of a non-transparent material. . One or more holes 29 are formed in the side plate 27 to communicate the inside and outside.

A drive motor 12 is installed in the disc sander body 10. In this embodiment, drive motor 12 is an electric motor and is connected via lead 23 to a power source (not shown). Instead of this,
As the drive motor 12, an air motor rotatably driven by pressurized air can also be used.

The sander disk 14 is installed on the drive shaft 24 of the drive motor 12. As the sander disk 14, ordinary ones such as a general disk-shaped grindstone, a resinoid wheel, a flexible wheel, etc. can be used.

The brush 16 includes four brush support parts 26 and a brush part 28 supported by these parts. As the brush portion 28, a paint brush, a brush made of synthetic resin (for example, nylon), a brush made of synthetic resin mixed with an abrasive, etc. can be used. It is preferable that the brush support part 26 is arranged so that it can only move in the vertical direction in FIG. 1 by means of an annular guide member 30 installed on the inner surface of the side plate 27 of the frame 21. An elastic member, for example a coil spring 34, is disposed between each of the brush supports 26 and the upper wall 32 of the annular guide member 30.
The two brush supports 26 are each independently and elastically forced downward. A stopper 36 is provided on the annular guide member 30, and a stopper 36 is provided on the annular guide member 30.
6 is restricted from moving downward. Instead of providing the annular guide member 30, only an elastic member may be provided between the inner wall of the disc sander main body 10 and the upper part of the brush support portion 26. The brush support section 26 can be composed of a single ring-shaped support section, but it can be composed of a plurality of ring-shaped support sections, such as the one described above, so that each support section can move up and down independently depending on the unevenness of the processing surface. It is preferable that the brush supporting portion 26 is composed of four brush supporting portions 26 in total.

The disk sander 10, the sander disk 14 and the brush 16 are as shown in FIGS. 1 and 2,
An annular space 38 is formed. Thereby, dust can be efficiently collected from the dust collection port 18.

Next, the operation of the disk sander of this specific example will be explained.

First, the drive motor 12 is connected to a power source and operated to rotate the sander disk 14, and the dust collection port 18 is communicated with a vacuum source to apply a vacuum force. Grip this disc sander, bring the sander disc 14 into contact with the surface to be treated, and perform the sanding process. As mentioned above, in this specific example, since the upper plate 25 is made of a transparent material, the sander disk 14 and the area to be processed can be visually seen during the sanding process.
The sander disc 14 can be accurately pressed against a desired part.

Furthermore, in this specific example, the side plate 27 includes:
One or more holes 29 are formed that connect the inside and the outside. By this,
It is possible to reduce or prevent dust from adhering to the inner surface of the upper plate 25 made of a transparent material and from scratches caused by dust collisions. Specifically, dust is mainly generated at the contact portion between the sander disk 14 and the processing surface, and is sucked into the dust collection port 18.

If the holes 29 are provided in the side plate 27 as described above,
Air from outside the side plate 27 enters inside through these holes 29, flows along the inner surface of the top plate 25 made of transparent material, and is sucked into the dust collection port 18. in this way,
Due to the presence of air flow along the inner surface of the upper plate 25, dust generated at the contact area between the sander disk 14 and the processing surface, etc., hardly comes into contact with the inner surface of the upper plate 25, and the dust is removed. The dust is sucked into the collection port 18, thereby reducing dust adhesion and scratches on the inner surface of the upper plate 25.

In the specific example described above, only the top plate 25 was made of a transparent material, but the top plate 25 and the side plate 2
7 can also be constructed from transparent materials, and other members, such as the conduit 20, can also be constructed from transparent materials so that the sander disk 14 and the processing surface can be seen more clearly. .

Further, in the above-described specific example, the holes 29 are provided in the side plate 27, or (and) even if they are provided in the upper plate 25, they are configured to prevent dust from adhering to the upper plate 25, etc. be able to. Further, from the outside, air flows through the guide member 3 having an annular groove.
A hole is provided in the member supporting the guide member 30 so that the air flows between the guide member 30 and the side plate 27 to the inner surface of the upper plate 25. It can also be configured to flow along the inner surface of the plate 25.

Effects According to the present invention, since it is configured as described above, it is possible to prevent dust from adhering to or damaging the transparent member of the disc sander body, and to make it clear. can maintain a clear field of vision.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a disk sander according to a preferred embodiment of the present invention. FIG. 2 is a plan view of the disk sander shown in FIG. 1. 10... Disc sander body, 12... Drive motor, 14... Sander disc, 16... Brush, 18... Dust collection port, 21... Frame, 2
5... Top plate, 27... Side plate, 29... Hole, 34...
...Coil spring.

Claims (1)

[Claims for Utility Model Registration] 1. A disc sander body equipped with a dust collection port connected to a vacuum source, a drive motor provided on the disc sander body, and a sander disc rotated by the drive motor. , a disk sander comprising the dust collection port and a brush surrounding the sander disk, and at least a part of the portion of the disk sander body that covers the sander disk is made of a transparent material. The main body is provided with a hole that communicates the outside and the inside thereof, and the portion of the disc sander main body made of the transparent member is formed by the action of a vacuum source.
A disk sander positioned above the air flow from the hole to the dust collection port. 2. The disc sander main body includes a disc-shaped upper plate and a side plate installed around the upper plate, the sander disk is covered by the upper plate and the side plate, and the upper plate The disc sander according to claim 1, wherein the disk sander is made of a transparent material. 3. The disc sander main body includes a disc-shaped upper plate and a side plate installed around the upper plate, the sander disk is covered by the upper plate and the side plate, and the upper plate The disc sander according to claim 1, wherein both the side plate and the side plate are made of transparent material. 4. The disc sander main body includes a disc-shaped upper plate, a side plate disposed around the upper plate, a guide member that movably supports the brush, and a member that connects the guide member to the side plate. A disc sander according to claim 1, wherein a hole is provided in a member connecting the guide member to the side plate.