JPS5912164Y2 - Chipsaw - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement of a tipped saw (rotary saw) used for cutting wood, etc.

As shown in Fig. 1, a conventional tip saw of this type has a large number of blades b around a tip saw body a. At the same time, a blade chamber e formed by a blade back C and a blade bottom d is formed between each blade body b, and a blade chamber e is formed between the blade bodies b. In this example, a tip f inclined at a positive rake angle is attached.

However, in a tipped saw having such a structure, the inclined surface of the blade back C forming the blade chamber e is shaped in the ■ direction with respect to the rotational direction of the tipped saw, and is further inclined in the direction of the blade bottom shape. Therefore, when cutting with this tip saw, it is difficult to remove the chips, and the chips tend to accumulate in the blade chamber e.

In addition, since the depth h of the blade chamber e in conventional chip saws is large, chips are likely to accumulate due to this depth h, which causes bending and the like, forcing the blade to be used under adverse conditions. The person being cut was a man, and there were problems with the workability of cutting.

The present invention was devised to solve these problems, and its main points are to reduce the depth of the blade chamber in the chip saw, and to add a part of the back of the blade to the blade in the direction of rotation of the chip saw. The object of the present invention is to provide a chipsaw which has an inclined surface inclined in the e direction so that the chips inside the cutting chamber can be easily removed.

The present invention will be explained in detail below based on the embodiment shown in FIG.

Reference numeral 1 denotes a tipping saw body, and a large number of blade bodies 2 are formed at regular intervals around the tipping saw body 1.

A blade chamber 3 is formed between each blade body 2, and this blade chamber 3 is formed by a blade back 4 and a blade bottom 5.

To describe the shape of the blade back 4 and the blade bottom 5 more specifically, the blade back 4 includes an upright portion 4 that is inclined in a direction opposite to the rotational direction of the chip saw 1 with respect to the radius r of the chip saw 1; Following the upright part 4, there is a sloped surface 4 that slopes in the rotation direction of the chipsaw, and a sloped surface 43 that has a gentle slope angle follows the sloped surface 4, and a blade bottom 5. Is it slightly tilted in the direction of rotation of the chipsaw? It is defined by an inclined surface 5 and, following the inclined surface 5, an upright portion inclined in a direction opposite to the rotating direction of the chip saw.

Therefore, the blade chamber 3 formed by the blade back 4 and the blade bottom 5
The central axis R of the tip saw 1 is inclined in the direction e with respect to the radius r of the tip saw 1.

6 is a tip (carbide blade) attached to the tip of each blade 2
It is.

The above is the structure of the tip saw according to this embodiment. According to this structure, the central axis R of the blade chamber 3 formed between each blade body 2 is relative to the radius r of the tip saw body 1. , is inclined in the opposite direction to the rotational direction of the chip saw, and the depth of this blade chamber is made shallow, so when cutting with this chip saw, it is difficult for chips to accumulate in the blade chamber 3, which improves cutting efficiency. We can provide high quality chipsaw.

That is, cutting the wood with a traditional chipsaw? In some cases, the chips tend to accumulate in the blade chamber of the chipsaw,
The chips (sawdust) accumulated in the blade chamber become stuck due to moisture or frictional heat, causing bending, etc., which reduces cutting efficiency. The placed chips are effectively discharged out of the blade chamber by the centrifugal force, and you can expect sharp cuts over a long period of time.

[Brief explanation of drawings]

Figure 1 is a side view of a part of a conventional chipsaw;
The figure is a partial side view showing an embodiment of the chipsaw according to the present invention. DESCRIPTION OF SYMBOLS 1... Chippso body, 2... Blade body, 3... Blade chamber, 4... Blade back, 4... Upright part, 4, 43... Inclined surface, 5... Blade Bottom, 5... Inclined surface, 5... Standing part,
r...Chipsaw radius, R...Blade chamber center axis, 6...
・Tip.

Claims (1)

[Scope of utility model registration request] A large number of blade bodies 2 are formed at regular intervals around the tipper body 1, and a blade chamber 3 is formed between each blade body 2, and this blade chamber 3 is connected to the blade back 4. This blade back 4 has an upright part 4 that is inclined in a direction opposite to the rotation direction of the chip saw 10 with respect to the radius r of the chip saw body 1, and a raised part 4 that is continuous with the upright part 4. It is formed of an inclined surface 4 which is inclined in the rotational direction of the chip saw, and an inclined surface 43 whose inclination angle is gentle following the inclined surface 4, and the blade bottom 5 is formed in the direction of rotation of the chip saw. an inclined surface 5 slightly inclined in the direction;
Following this inclined surface 5, the central axis R of the blade chamber 3 formed by the blade back 4 and blade bottom 5 is formed by an upright portion 5 that slopes in a direction opposite to the rotation direction of the chip saw. The tip saw has a blade chamber 3 inclined in the direction e with respect to the radius r of the tip saw body 1.