JPH0613825Y2 - Pad structure of suction type orbital sander - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Use of the Invention] The present invention relates to a dust suction device such as an orbital sander.

[Background of the Invention] The prior art will be described with reference to FIGS. 5, 6, and 7. FIG. 5 is a partial cross-sectional view showing the internal structure of the dust absorption type orbital sander, FIG. 6 is a side view of the pad used in the dust absorption type orbital sander, and FIG. 7 is a bottom view of the pad shown in FIG. Is. 1 is a rotor shaft of a dust absorption type orbital sander, 2 is a dust suction fan which is fixed to the rotor shaft 1 and rotates at high speed, 3 is a polishing plate which swings during operation of the dust absorption type orbital sander, 4 is a polishing plate 3 A plurality of communication holes 5 formed in the upper surface of the polishing plate 3 to form the dust suction passage A; 6 a pad fixed to the lower surface of the polishing plate 3; 7 a communication hole 4; A plurality of suction holes are formed in the communicating pad 6, and 8 is the outer peripheral side surface of the pad 6 that sucks the polishing powder that has not been sucked from the suction hole 7 (polishing powder that has leaked to the side of the pad). It is a side groove communicated with the suction hole 7. The side groove 8 is set to a depth up to about half of the thickness of the pad 6 in order to secure the strength of the pad 6 itself, but when a sponge material or the like is used as the material of the pad 6, the degree of firing is uniform. Therefore, it is impossible to mold the pad 6. Therefore, the pad 6 is generally molded by a rubber material or the like, or a felt plate or the like is stamped by a pressing technique.
In the pad 6 thus formed, when a rubber material or the like is used as the material of the pad 6, the weight of the pad 6 which is the vibration source becomes heavy and the weight of the balance weight 9 corresponding to the pad 6 also becomes heavy. It had a drawback that the weight of the orbital sander was heavy. Further, when a felt material is used as the material of the pad 6, since the shape of the side groove is permanently deformed by pressing, a special felt impregnated with metal powder is used, which is very expensive. Had.

[Object of the Present Invention] An object of the present invention is to provide an inexpensive dust absorption type orbital sander with reduced weight by eliminating the above-mentioned drawbacks of the prior art.

[Outline of the Invention] The pad is divided into a first pad and a second pad,
The first pad is provided with a first dust suction hole, the second pad is provided with a second dust suction hole at a position where it can be communicated with the first dust suction hole, and the second dust suction hole is provided. A side groove communicating with the dust suction hole is also formed in the second pad. Then, by bonding the divided first and second pads using an adhesive or the like, a pad with a side groove similar to the conventional one can be formed at low cost.

[Embodiment] The present invention will be described with reference to FIGS. 1 to 4. FIG. 1 is a side view of the pad 6 used in the present invention, FIG. 2 is a bottom view of the pad 6 shown in FIG. 1, and FIG. 3 is a plan view showing the first pad which is divided and formed. FIG. 4 is a plan view showing a divided second pad. The pad 6 is made of a lightweight material such as a sponge material and has a plurality of suction holes 7a, 7b.
And the side groove 8 is bored. The pad 6 is the first pad 6
a and the second pad 6b are divided and molded, and the first pad 6a has a communication hole 4 formed in the polishing plate 3.
A first dust collecting hole 7a communicating with the first pad 6a is formed in the second pad 6b, and a first dust collecting hole 7a formed in the first pad 6a is formed in the second pad 6b.
A second dust suction hole 7b communicating with a is formed. The second
A side groove 8 communicating with the second dust suction hole 7b from the outer peripheral side surface is also formed in the pad 6b. Here, the first and second dust suction holes 7a and 7b and the side groove 8 formed in the first and second pads have a shape that can be easily die-cut from a sponge plate material or the like by a pressing technique. There is. These divided and molded first and second pads become the pad 6 with the side groove shown in FIG. 1 and FIG. 2 by pasting each with an adhesive material or an adhesive agent, etc. The pad 6 having the same function as the pad 6 can be manufactured.

Therefore, in the present invention, since a lightweight sponge material or the like can be used as the material of the pad 6, the weight of the balance weight 9 facing the pad 6 can be reduced, and as a result, the weight of the orbital sander can be reduced. . Further, since the sponge material and the like can be easily die-molded by the pressing technique, the molding time can be shortened. Furthermore, the pad 6 can be manufactured at low cost by using a sponge material or the like as the material of the pad 6.

[Advantages of the Invention] According to the present invention, since a pad with a side groove can be easily formed by molding, a lightweight material such as a sponge material can be used and an inexpensive pad with a side groove can be used. Can be provided.

[Brief description of drawings]

FIG. 1 is a side view of a pad used in the present invention, FIG. 2 is a bottom view showing the pad of FIG. 1, FIG. 3 is a plan view showing a first pad which is divided and formed, and FIG. FIG. 5 is a plan view showing the divided second pad, FIG. 5 is a partial sectional view showing the internal structure of the dust-absorbing type orbital sander, and FIG. 6 is a side view of the pad used in the dust-absorbing type orbital sander. FIG. 7 is a bottom view of the pad shown in FIG. In the figure, 1 is a rotor shaft, 2 is a dust suction fan, 3 is a polishing plate, 4 is a communication hole, 5 is a cover, 6 is a pad, 6
a is a first pad, 6b is a second pad, 7 is a suction hole, 7a is a first suction hole, 7b is a second suction hole, 8
Is a gutter, 9 is a balance weight, and A is a dust suction passage.

Claims (1)

[Scope of utility model registration request] 1. A polishing plate having a communication hole, and a first plate fixed to the lower surface of the polishing plate and communicating with the communication hole.
A first pad having a dust suction hole formed therein and a second pad fixed to the lower surface of the first pad and communicating with the first dust suction hole
In a pad structure of a dust absorption type orbital sander having a second pad having a dust suction hole formed therein, the second pad communicates with the second pad from the outer peripheral side surface of the second pad. A pad structure for a dust absorption type orbital sander characterized by having a side groove.