KR940000764B1 - Saw and manufacturing method thereof - Google Patents

Abstract

No content.

Description

Saws and manufacturing methods

1 is a partially enlarged view of a sawtooth row of saws used in a drawing as seen from the right according to one embodiment of the present invention.

FIG. 2 is a cross-sectional view taken along lines A-A, B-B and C-C in FIG.

3 is an explanatory diagram showing a conventional cutting state by a tooth and an explanatory diagram showing a cutting state by a tooth of an embodiment according to the present invention.

4 is a cross-sectional structural view of a tooth according to another embodiment of the present invention.

Figure 5 is a cross-sectional view of the saw tooth formed teeth formed in the applied tooth of the present invention in the direction of the tooth row.

6 is a view showing another embodiment of the present invention.

7 is a view showing another embodiment of the present invention.

FIG. 8 is a view for explaining a part of the process of manufacturing the embodiment shown in FIG.

9 is a view showing a modification of the blade attachment angle of the upper blade in the embodiment of the present invention.

FIG. 10 is a partially enlarged view of the bramble-shaped sawtooth according to another embodiment of the present invention.

* Explanation of symbols for main parts of the drawings

2: first tooth 3: 2nd tooth

4: surface blade 5: backside blade

6: upper blade 7: normal

10: cutting part

The present invention relates to a structure of a tooth, and in detail, relates to a saw with improved teeth and a method of manufacturing the saw.

The saw tooth has a so-called cutting function for cutting wood fibers to make sawdust and a sawdust discharge function for discharging the produced sawdust out of the cutting portion. In order for a saw to lift well, it is necessary to provide the tooth which fully exhibits these two functions.

In the prior art, methods such as forming auxiliary teeth on the teeth so as to fully exhibit the above two functions, or forming teeth of a special shape in a series of teeth at regular intervals are proposed. have.

The present invention is applicable to a tooth having an auxiliary tooth and a tooth having no auxiliary tooth, and an object thereof is to provide a new structure having a good cutting force and a method of manufacturing the saw.

The present invention relates to a saw having a top blade formed at the front end and a back blade formed in a direction pushing the saw, wherein all teeth having a series of teeth each have a surface blade formed toward a square for pulling a saw. There is a first tooth having an upper blade formed at the front side and the same surface formed on the surface of the rear blade, and a second tooth having an upper blade formed at the front end opposite to the surface on which the surface and the back surface are formed. Each of the predetermined unit teeth is arranged alternately with each other.

In the above-described saw, the present invention is characterized in that auxiliary teeth are formed in the first tooth and the second tooth, and the width of the auxiliary tooth is smaller than that of the first tooth. .

The present invention is also characterized in that, in the saw described above, the auxiliary tooth is formed in the first tooth, and the auxiliary tooth is not formed in the second tooth.

In addition, the present invention is characterized in that the upper blade is formed in the above-described saw so that the first teeth adjacent to each other along the direction of pushing the saw teeth of the second tooth is lower by a certain length than the other teeth. will be.

In addition, the present invention is a method of manufacturing a saw having a series of teeth, all teeth having a surface blade formed toward the direction of pulling the saw, the back blade formed toward the direction of pushing the saw and the upper blade formed on the tip end, The tooth is divided into a first tooth and a second tooth, and in forming the upper blades in each tooth, the first tooth forms an upper blade toward the same plane as the surface blade and the rear blade forming surface, and the second tooth has a surface blade and It is characterized in that the upper blade is formed toward the surface opposite to the forming surface of the back blade. In addition, the present invention is characterized in that the top blade is formed after the front blade and the back blade are formed in the above-described method for producing a saw.

In addition, the present invention includes a step of forming a surface blade, a back blade and an upper blade by machining using a rotary blade in the method of manufacturing the saw, when forming the upper blade on the second tooth, At the same time, the upper blade of the first tooth adjacent to the second tooth is formed in the direction of pushing the saw.

In addition, the present invention, in the above-described saw manufacturing method, the first blade is formed at the same time as the upper blade of the second teeth, the upper blade is formed so that the height of the saw is lower by a certain length than the other teeth. It is characterized by.

In addition, the present invention relates to a saw, there is a series of teeth, each tooth includes a surface blade formed toward the direction of pulling the saw and a back blade formed toward the direction pushing the saw, each tooth is a first tooth And a second tooth, wherein the second tooth has an upper blade formed on a surface opposite to a surface on which a front blade and a rear blade are formed at the distal end thereof.

The present invention is also characterized in that, in the saw described above, the second tooth is disposed for each predetermined unit tooth of the first tooth.

The present invention is also characterized in that, in the saw described above, the second teeth are arranged such that the upper blades formed are alternately directed toward the left or the right of the row of teeth.

In one saw according to the present invention, each tooth is composed of a surface blade, a back blade, and an upper blade, and the teeth are divided into a first tooth and a second tooth.

In the first and second teeth, the upper blade is formed toward the opposite surface. Therefore, when viewed in the direction of the normal tooth row positioned at the tip of the upper blade, it deviates from the center to the left and right.

Therefore, the cutting trace by the first tooth and the cutting trace by the second tooth are different from each other, so that the cutting trace is relatively larger than that of the conventional saw.

If the cutting trace is relatively large, it is easy to saw, so that the sawing can be performed smoothly, and the discharge function of sawdust is improved.

The other saw which concerns on this invention has the structure of a 1st saw tooth and the conventional bramble-shaped sawtooth, and a 2nd sawtooth has a structure in which the upper blade was formed with respect to a sawtooth saw tooth. The top of the second tooth is relatively lower than the top of the first tooth.

For this reason, the second tooth functions as an auxiliary tooth of the first tooth and is easier to saw than a thorn tooth, and sawing proceeds smoothly.

Next, the implementation of the present invention will be described in detail with reference to the drawings.

FIG. 1 relates to one embodiment of the present invention, and is a partial enlarged view of a sawtooth row of saws used to pull sideways as seen from the drawing.

In Fig. 1, reference numeral 1 denotes a main body of the saw, and (2) and (3) are teeth used for pulling a series of sideways formed in rows under the saw main body 1.

Here, 2 is a 1st tooth, 33 is a 2nd tooth, and the 1st tooth 2 and the 2nd tooth 3 are different in the formation surface of an upper blade.

In more detail, as shown in FIG. 1, each first tooth 2 has a surface blade 4 formed toward the square A1 for pulling the saw and a back surface formed toward the direction A2 for pushing the saw. A blade 5 and an upper blade 6 formed at the tip are included.

The tip end made of the surface blade 4 and the upper blade 6 forms the top 7 of the tooth 2.

The surface blade 4, the back blade 5 and the upper blade 6 are formed in the same plane side as shown in the figure.

Such a configuration of the first teeth 2 is not changed from the configuration of the teeth used by pulling conventionally.

The second tooth 3 is also provided with a surface blade 4, a back blade 5, and an upper blade 6, which are different from the first teeth 2, and in the second teeth 3, the surface blades. (4) and the back blade 5 are formed toward one side, and the upper blade 6 is formed toward the opposite surface.

In this way, in the second tooth 3, it is one of the features of this embodiment that the forming surfaces of the surface blades 4 and the rear blades 5 and the forming surfaces of the upper blades 6 are different.

With this configuration, when the saw main body 1 is viewed from the direction in which the saw is pulled, for example, as shown in the cross-sectional views of Figs. 2 (a), 2 (b) and 2 (c), the first saw tooth ( The tops 7 of 2) and the second tooth 3 do not overlap, and the tops 7 are arranged in four rows as viewed from the side.

As a result, when viewed from the direction in which the saw is pulled, the two left and right tops 7 by the first teeth and the two tops 7 by the second teeth 3 are positioned therebetween, and the top 7 is next to each other. Four rows in the direction.

The top (7) is written in four rows, has the following actions and effects on the cutting force of the saw blade.

That is, as shown in Fig. 3 (a), when viewed from the saw pulling direction, when there are only two tops 7 from side to side, the peak 11 has a triangular cross section at the bottom center of the cutout 10. This acid (11) will interfere with the cutting operation.

Therefore, it becomes difficult to pull the saw and the cutting force of the saw blade falls.

On the other hand, as shown in Fig. 3 (b), in the saw tooth according to the present embodiment in which the top 7 is arranged in four rows, no large triangular acid remains at the bottom center of the cutting portion 10, so that the cutting operation is easy. The cutting force of the saw blade will be good.

This embodiment has the following features.

That is, as shown in FIG. 1, the first tooth 2 alternates with each other when the surface on which the surface blade 4, the back blade 5 and the upper blade 6 are formed is viewed from the direction in which the saw is pulled, for example. It is arranged to face left and right.

On the other hand, one second tooth 3 is inserted into every four first teeth 2.

That is, in FIG. 1, the first tooth 2 facing the right side in order from the left side, the first tooth 2 facing the left side, the second tooth 3 facing the right side, and the first tooth facing left side. (2), the first tooth 2 to the right, the first tooth 2 to the left, the first tooth 2 to the right, the second tooth 3 (to the left), the agent to the right 1 tooth 2, 1st tooth 2 facing left,... It is arranged in order.

And when looking only at the 2nd tooth 3, it is right, left, right,. It is arranged in order.

In addition, four first teeth 2 as in the present embodiment. The first tooth 2 is not a predetermined number X, the second tooth 3 is a predetermined number Y, the first tooth 2 is a predetermined number X, The second tooth 3 has a predetermined number Y,... As described above, the first teeth 2 and the second teeth 3 may be arranged in order by any number.

For example, for example, (1) the first tooth to the right, the second tooth to the right, the first tooth to the left, the repetition of the second tooth to the left, (2) the first tooth to the right, the left First tooth facing, second tooth facing right, repetition of second tooth facing outward, (3) first tooth facing right, second tooth facing left, first tooth facing right, first facing left 2 teeth, 1st tooth to the left, 2nd tooth to the right, 1st tooth to the left, 2nd tooth to the right, back, arrangement of the 1st tooth 2 and the 2nd tooth 3 The relationship may be any arrangement relationship. In addition, the shape of the upper blade 6 in the second tooth 3 may be as shown in FIG.

4 is a diagram showing a cross-sectional structure of the same portion as in FIG. 2 (B).

As shown in FIG. 4, the upper blade 6 of the second tooth 3 does not sharpen the top 7, and the upper blade 6 may extend in the horizontal direction.

By doing in this way, the function which the 2nd tooth 3 cut | disconnects the bottom of a cut part will become high. In the saw main body 1 of the above-described embodiment, the teeth 2 and 3 are not formed with the auxiliary teeth. Instead, the saw main body 1 is polished, and the saw main body 1 is provided. The thickness gradually decreases toward the height of the saw body (upper side in the drawing) from the center portion (lower side where the teeth are formed in the drawing).

However, the present invention is not limited to the tooth having no auxiliary tooth formed, and the present invention can be similarly applied to the tooth having the auxiliary tooth formed.

5 is an example of a cross-sectional view of a saw tooth formed with an auxiliary tooth to which the present invention is applied in the direction of a tooth row.

As shown in FIG. 5, even if the auxiliary tooth is formed in the tooth, the position of the top 7 formed by the first tooth 2 and the position of the top 7 formed by the second tooth 3 are mutually different. The position of the top 7 formed by the second tooth 3 is different from that of the top 7 of the first tooth.

Therefore, the number of cutting traces is increased, and the cutting force of the saw blade is improved.

6 is another example of the present invention.

In the embodiment of Fig. 6, not all the teeth are formed in the auxiliary teeth, and the second tooth 3 is an example in which the auxiliary teeth are not formed.

In this way, the top 7 of the second tooth 3 can be arranged closer to the center, and the arrangement of the tops 7 arranged in four rows can be changed as shown in FIG. Accordingly, a saw having a good cutting force of the saw blade can be provided.

7 is a partial enlarged view of the sawtooth row of the saw used in the side showing another embodiment of the present invention seen from the right side.

As it is shown in the seventh degree, a second predetermined amount than the tooth 3, the first teeth (2) The height of the first teeth (2a) which are adjacent along the pushing direction (A _2), the top with respect to (2) As low as it is supposed to be.

In order to make the height of the first tooth 2a low, it is not necessary to increase the number of steps in particular.

As a result, as shown in FIG. 8, the upper blade 6 is formed on the first tooth 2a at the same time by the rotary blade C when the upper blade 6 of the second tooth 3 is formed. Because you can. In Fig. 7, the auxiliary teeth having a general width are formed in the first teeth 2, 2a, and the auxiliary teeth having a narrower width are formed in the second teeth 3, or the auxiliary teeth are formed. It is preferable not to.

In each of the above embodiments, the inclination angle θ of one side 8 with respect to the direction of the center axis of the tooth can be changed depending on the cutting edges of the surface blade 4 or the surface blade 4 and the back blade 5. have.

The inclination angle θ can be changed or the position of the top 7 formed by the second tooth 3 can be changed.

That is, as shown in FIG. 9, the inclination angle θ of one side 8 may be θ1, θ2, or θ3. The inclination angle of the saw according to the purpose of use is shown. By changing the degree θ, the position of the top 7 in the second tooth 3 may be set.

In each of the above embodiments, the blade attachment angle of the upper blade 6 in the first tooth 2 and the blade attachment angle of the upper blade 6 in the second tooth 3 are 180 degrees. However, the blade attachment angle of the upper blade 6 in the second tooth 3 may be set to an arbitrary angle regardless of the blade attachment angle of the upper blade 6 of the first tooth 2.

In each of the above-described embodiments, the upper blade 6 of the second teeth 3 can be simply implemented by machining, similarly to the formation of the upper blade 6 of the first teeth 2. That is, when forming the upper blade 6 of the second tooth 3, the blade attachment angle (cutting angle) of the blade attachment machine and the interval between the number of blade attachment may be set and corrected.

Therefore, in the formation of the second tooth 3, there is no particular inconvenience such as having to be formed by hand, and it is simply performed by machining.

In each of the above-described embodiments, all the teeth were used to pull sideways, including surface teeth, back teeth and upper teeth, but the present invention can also be applied to a so-called thorn tree saw tooth.

10 is a partially enlarged view of the bramble-shaped sawtooth according to the embodiment of the present invention seen from the right side.

As shown in FIG. 10, the thorn tooth 20 has surface teeth 21 formed toward the direction A1 for pulling the saw, and back teeth 22 formed for the direction A2 for pushing the saw. ), And the upper teeth are not provided.

In the present embodiment, in the saw formed by extending the thorn tooth 20, for example, the upper blade 23 is formed in succession of 25 across four.

The upper blade 23 is formed on the side opposite to the surface on which the surface teeth 21 and the rear teeth 22 are formed.

Thus, by forming the upper blade 23 selectively with respect to the thorn tooth 20, the cutting force of a saw blade improves.

Other patterns can also be freely employed for forming intervals of the upper blades in the thorn teeth.

Moreover, about the tooth | gear with which the upper blade was formed, it is not necessary to make the width | variety of an auxiliary tooth relatively small, or to form an auxiliary tooth.

In the above description, the hand-pulverized saw is taken as an example, and the present invention can be similarly applied to a band saw.

Since this invention is comprised as mentioned above, the cutting force of a saw blade is favorable and can provide the saw which can cut easily.

Further, according to the present invention, since the method of forming the upper blade is simply different when the first tooth and the second tooth are manufactured, machining of any tooth is easy and production is easy.

Claims (11)

In a saw having a series of teeth, each tooth has a surface blade 4 formed toward the direction of pulling the saw, a back blade 5 formed toward the direction of pushing the saw, and an upper blade 6 formed at the tip, A first tooth 2 having an upper blade 6 formed on the same side of the surface where the surface blades 4 and the rear blades 5 are formed, and a surface on which the surface blades 4 and the rear blades 5 are formed; There is a second tooth (3) having an upper blade (6) formed on the opposite end, characterized in that the first tooth (2) and the second tooth (3) are alternately arranged for each predetermined number of unit teeth . 2. The first tooth 2, 2a and the second tooth 3 are each provided with an auxiliary tooth, and the second tooth has a smaller width than that of the first tooth. Saw characterized in that. 2. A saw according to claim 1, wherein an auxiliary tooth is formed in the first tooth (2) and an auxiliary tooth is not formed in the second tooth (3). The first tooth 2a according to any one of claims 2 or 3, wherein the first tooth 2a adjacent to the second tooth 3 is directed toward the tooth 2 having a different tooth height. A top, characterized in that the upper blade (6) is formed so as to be lower than the predetermined amount (Z). There is a series of teeth, and each tooth has a surface blade (4) formed toward the direction (A1) for pulling the saw, a back blade (5) formed toward the direction (A2) for pushing the saw, and an upper blade (6) formed at the distal end. In the method of manufacturing a saw with a tooth, the teeth are divided into a first tooth 2 and a second tooth 3, and when the upper blade 6 is formed in each tooth, the first tooth 2 has a surface blade. (4) and the upper blade (6) is formed on the same side as the forming surface and the rear blade (5), the second tooth (3) has the upper blade toward the opposite side to the forming surface of the surface blade (4) and the rear blade (5) (6) The manufacturing method of the saw characterized by the above-mentioned. 6. Method according to claim 5, characterized in that the upper blade (6) is formed after the surface blades (4) and the back blades (5) are formed. The method according to any one of claims 5 and 6, further comprising the step of forming the surface blades 4, the back blades 5, and the upper blades 6 by machining using the rotary blades C. When forming the upper blade 6 in the second tooth 3, at the same time to form the upper blade 6 of the adjacent first tooth toward the direction (A2) to push the second tooth 3 The manufacturing method of the saw. The first tooth 2a according to claim 7, wherein the first tooth 2a on which the upper blade 6 is formed at the same time as the upper blade 6 of the second tooth 3 has a predetermined amount Z lower than that of the other teeth. Method of producing a saw, characterized in that the upper blade (6) is formed as possible. There is a series of teeth, and every tooth includes a surface blade 4 formed toward the direction A1 for pulling the saw and a back blade 5 formed toward the direction A2 for pushing the saw, and each tooth Is divided into a first tooth (2) and a second tooth (3), the second tooth (3) at the distal end portion, and the upper side toward the opposite side to the surface side on which the surface blades (4) and back blades (5) are formed A saw having a blade 6 formed thereon. 10. A saw according to claim 9, characterized in that it is arranged for every predetermined number of second teeth (3) and first teeth (2). 11. The saw according to claim 10, wherein the second teeth (2) are arranged such that the upper blades (6) formed are alternately directed to the left and right of the tooth row.

Images