JPH0723202Y2 - Saw chain for chain saw - Google Patents

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to an improvement of a saw chain for a chain saw.

In particular, the present invention relates to a saw chain for a chain saw, which is used for discharging the excavated soil along with cutting the root of the tree or fruit tree vegetated in the ground when excavating it from the ground.

Furthermore, an excavating machine is used to take out relatively large pieces of wood or wood sunk in the ground at a construction site or the like. However, it is not uncommon for wood or the like to be caught on an excavating blade to make it difficult to take out the wood. In this case, however, the wood is also cut into relatively small pieces in advance by a saw chain to facilitate the work.

In addition, it is often difficult to introduce an excavating machine in a narrow place, so it is used even in this case.

And in orchards, it is inevitable that the roots of fruit trees will grow on the land adjacent to other people, but even in such cases, they are used for cutting the roots.

[Conventional technology]

 The inventor is unaware of this type of conventional example.

It has been widely practiced to transplant trees that have been vegetated into the ground, but the commonly used method is to dig up the circumference of the tree in a ring shape with a scoop and remove the roots of the tree exposed from the ground. It is traditionally practiced to cut using a hand-operated instrument such as a saw or a braces.

However, since the work is laborious and complicated for the traders, the saw chains for ordinary saw chains have been forcibly used without cutting for cutting tree roots (see Fig. 19).

However, as is clear with reference to FIG. 19, the structure is a cutter in which what is called a drive link 70 is connected endlessly, and the direction of the blade portions 72 is alternately opposed at regular intervals. Link 74 is connected to drive link 70 and side link between adjacent cutter links 74
Only 76 is provided.

[Problems to be solved by the device]

In a conventional chain saw saw chain, the saw chain is used exclusively for cutting trees exposed on the ground, and it is not expected to dig up underground or discharge excavated soil. Since it was not there, the structure of the saw chain is as described above, cutter link 74
Are just connected.

Therefore, although it is not the intention, there is a problem in that as far as the capability of excavating the ground by the cutter link 74 is concerned, the ability to discharge the excavated soil cannot be expected so much even if the process can be performed.

Therefore, there is a problem that not only the cutting efficiency is extremely poor because there is no soil discharging function, but also the damage due to short-term use cannot be avoided, so that it cannot be practically used for long-term use.

An object of the present invention is to provide a saw chain for a chain saw which has a function of cutting out excavated soil and a capability of cutting roots when cutting roots of trees in the ground.

Another object of the present invention is to significantly improve the cutting ability of roots and the like by providing a function of discharging excavated soil.

Furthermore, it is to contribute to the improvement of the cutting work efficiency of the roots in the ground.

[Means for Solving the Problems]

The first of the basic configurations of the present invention is that drive links are connected continuously and endlessly, cutter links are provided at regular intervals across a pair of adjacent drive links, and discharge links are provided between the cutter links. In a saw chain for a chain saw, the discharge link has a width d that is less than or equal to the blade width D formed by the blade portion of the cutter link and greater than or equal to the thickness of the discharge link, and has a discharge surface over substantially the entire width d. The discharging section provided is provided at one end of the discharging link, and No. 2 thereof is a saw chain for a chain saw in which adjacent driving links are continuously and endlessly connected through side links, and one side of the driving link is provided. 3 has a relatively small saw tooth and a discharge part having a function of discharging soil on the other side. A saw chain for a chain saw, which is connected in a circular shape, in which a cutter link having a relatively small saw tooth on one side and an ejecting portion on the other side is connected between drive links, and 4 is a drive link In a saw chain for a chain saw, which is continuously and endlessly connected, a discharge part having a depth provided on one side and a discharge part provided on the other side, and a blade part provided between the depth and the discharge part. The attached cutter links are provided across the drive links at regular intervals.

Further, the changes due to these designs are also described.

[Action]

As is well known, the saw chain of this invention is mounted on the peripheral edge of the main body of the guide bar and rotated by a drive source.

In this case, the depth of the cutter link of the saw chain, the discharge link, or the cutter link with the discharge member must be positioned in the traveling direction of the saw chain of the chain saw.

By driving this saw and pressing the rotating saw chain against the soil, the soil is excavated by the cutter links and saw teeth, and the excavated fine soil is discharged to the ground surface by the discharge links and discharge parts, thus the cutter links and saw teeth. Moves smoothly in the ground, and the roots of trees in the ground are cut by cutter links and saw teeth.

[Embodiment 1] This embodiment is shown in FIG. 1 to FIG. 5, and is an example in which a drive link 10, a cutter link 12, a connecting link 26, and a discharge link 20 described later are combined. The drive link 10 is not connected by the so-called side link 32 shown in Example 2.

However, compared to the conventional product, the configuration itself of the drive link 10, the cutter link 12, and the connection link 26 other than the discharge link 20 for discharging the soil excavated by the cutter link 12 does not change.

Therefore, a notch 14 is provided on one side of the drive link 10, and a connection mechanism with the guide bar main body is provided although not shown.

Like the conventional product, the cutter link 12 has depth 16 on one side.
Is provided on the other side, and a blade section 18 having a constant width and having a substantially L-shaped cross section is provided on the other side.

Further, the structure of the connecting link 26 is also substantially rectangular as shown in the drawing, a pair of caulking holes 28 are provided, and the purpose is to connect the adjacent drive links 10 and the cutter link 12 and the discharge link 20 to the drive link. It is intended to be connected to 10, and therefore has the same structure as the conventional product.

And, as will be described later in detail, the discharge link 20 having the function of discharging excavated soil showing the characteristics of this example.
The one is provided with the depth 22 similarly to the cutter link 12, and the other is provided with the soil discharging portion 24.

The height h of the discharge portion 24 of the discharge link 20 is set to be substantially the same as or slightly lower than the height H of the blade portion 18 of the cutter link 12 when connected to the drive link 10.

Further, the width d of the discharge portion 24 is equal to the two blade portions of the pair of cutter links 12 which are alternately coupled to both sides of the drive link 10.
It is provided within a width D of 18 and has a width d which is equal to or larger than the thickness of the discharge link and is provided with a discharge surface over substantially the entire width d (see FIGS. 2 to 5).

The width d of the discharge portion 24 described above means within the width D of the two facing blade portions 18 of these two cutter links 12.

By making the height h of the discharge part 24 within the height H of the cutter link 12 and the width d of the discharge part 24 within the width d of the two blade parts 18, excavating and cutting the roots of trees and the like during use. It will be readily understood that there is no load on the cutter link 12 in this case.

So these drive link 10, cutter link 12,
A combination of the connection link 26 and the discharge link 20 will be described.

In this embodiment, there are 6 drive links 10 and 4 cutter links 12, 5 (not visible in the drawing because 2 are shown on the back side) connecting link 26 and 1 discharge link 20. Are configured as a set.

In the six drive links 10 adjacent to each other, between the drive links 10, one cutter link 12 is hung from the left side to the right side in the drawing and straddles a pair of drive links 10,
1 more cutter link 12, 1 discharge link 20, 1
One cutter link 12 and one cutter link 12 are connected to the drive link 10 through a connecting link 26 in this order.

Depth of connection between cutter link 12 and discharge link 20
16 and 22 should be located in the running direction of the saw chain when in use.

In this case, the cutter links 12 are adjacent to each other.
It is the same as the conventional product, but the direction of the blade portion 18 is coupled to each other toward the opposite side, that is, the coupling to the one side and the other side of the drive link 10 is the same as the conventional product, but the directions are not necessarily alternated. It is not limited only to the provision.

For example, two or more adjacent cutter links 12 may be connected to one side of the drive link 10 and two or more cutter links 12 may be connected to the other side of the drive link 10.

However, it would be undesirable to bias all the cutter links 12 to one side of the drive link 10 and combine them.

What is necessary is that the cutter links 12 are connected to both sides of the drive link 10 in a well-balanced manner as a whole, though not limited to being adjacent to each other in the entire endless saw chain.

The drive link 10, the cutter link 12, and the discharge link 20 are caulked via a connecting link 26 so as to swing independently of each other as in the conventional product.

In this embodiment, the six drive links 10, the four cutter links 12, the five connecting links 26 and the one discharging link 20 are set as one set, but this configuration makes the set continuous and endless. The configuration is this embodiment.

In the example shown in the drawing, one discharge link 20 is provided between four cutter links 12 provided at alternate positions on one side and the other side of the drive link 10, but two adjacent cutter links 20 are provided. One discharge link 20 may be provided between the links 12.

Also, two or more discharge links 20 may be provided between the six cutter links 12.

One discharge link between two adjacent cutter links 12
When 20 is provided, the number of discharge links 20 is increased as a whole, and the soil discharge function can be improved.

However, increasing the number of the discharge links 20 puts a load on the cutting action at the time of use, and it is predicted that the cutting function such as the root of a tree will be decreased on the contrary.
The combination of the number or the ratio of the cutter link 12 and the discharge link 20 described above needs to be adjusted.

For example, the selection may be made according to the hardness of the soil to be excavated.

For soft soil, it is preferable to reduce the number of cutter links 12 and, on the contrary, when the soil is coin, increase the number of cutter links 12.

Explaining the number of combinations of the cutter link 12 and the discharge link 20, when the place where there are many tree roots or the wood piece buried in the soil is large, the number of cutter links 12 is good because the main purpose is cutting. . Even in the case of hard soil, the number of cutter links 12 is preferably large because the main purpose is to make it fine. When the number of roots and cuts is small, or when the geology is soft, it is preferable that the number of the discharge links 20 is large, because high discharge capacity enables efficient work. It is planned that the combination and total number of the cutter links 12 and the discharge links 20 will be changed depending on the magnitude of the output of the prime mover. For example, when the output is small, the total number of the discharge links 20 is reduced to reduce the total load, and when the output is large, the total number of the discharge links 20 is increased, so that efficient work can be performed.

If these saw chains are appropriately selected and combined and this saw chain is replaced and used according to the work site, very efficient work can be performed.

However, what is necessary for this device is the cutter link.
The discharge link 20 is provided between the two.

Furthermore, it is desirable that the attachment positions of the adjacent discharge links 20 with respect to the drive link 10 alternate between one side and the other side of the drive link 10, but there is no intention to limit the orientation thereof.

Incidentally, one of the discharge links 20 shown in the drawings is supported on one side of the drive link 10, and the other discharge link 20 is supported on the other side of the drive link 10. No restrictions.

The reason is that the cutter link 12 is provided on one side and the other side of the drive link 10 as described above.

The depths 16 and 22 of the cutter link 12 and the discharge link 20 are provided slightly lower than the heights of the blade portion 18 and the discharge portion 24, respectively, but the purpose of the depths 16 and 22 is to provide the blade portion 18 and the discharge portion described above.
It is to adjust the bite load applied to 24.

Therefore, if the height is too high, the work efficiency decreases, and if it is too low, it causes an overload, which causes damage and premature wear of the saw chain.

Next, details of the discharge link 20 in this embodiment and other examples will be described.

The discharge link 20 shown in FIG.
The discharge part 24 is integrally formed of steel.

The purpose of the depth 22 is similar to that of the depth 16 of the cutter link 12.

The discharge portion 24 provided so as to face the depth 22 bulges out larger than the wall thickness of the main body.

This is because the excavated soil can be easily discharged due to the bulging, but this does not necessarily mean that the discharging portion 24 is bulging only, and the discharging portion 24 evenly eats on both sides of the main body. It may be biased to one side without protruding,
The shape of the discharge part 24 is not limited to the rectangular shape.

What is needed is to provide a discharge part 24 on the opposite side of the depth 22 that has a discharge surface effectively over the entire width d and has a function of discharging soil effectively. It doesn't matter.

The two holes 28 provided in the discharge link 20 are drive links.
It is for caulking when connecting to 10.

The depth 22 is not essential in the discharge link 20.

Because the depth 16 is provided on the cutter link 12 on the saw chain during use, the depth 22 on the discharge link 20
This is because the provision of may be omitted.

The example shown in FIG. 3 is an example in which the discharge portion 24 and the scooping portion 30 are so-called brazed to the discharge link 20 main body.

The scooping portion 30 extends toward the depth 22 side and is provided in a direction perpendicular to the main body.

The scooping section 30 is designed to facilitate scooping the soil discharged during use.

Therefore, it will be easily understood that the provision of the scooping portion 30 further contributes to the improvement of the soil discharging function.

In the example shown in FIG. 4, the discharge link 20 main body and the depth 22,
This is an example in which the discharge portion 24 and the scooping portion 30 are integrally formed of steel.

The scooping portion 30 is provided with an acute angle on the side of the depth 22 to further improve the discharging function.

Reference numerals "28" shown in FIGS. 2 to 4 are holes for caulking.

The discharge link 20 shown in FIGS. 2 to 4 is not necessarily limited to one formed by integral molding. Discharge part 24 and scooping part 30
May be riveted or screwed separately from the main body.

Although illustration is omitted, the shape of the discharge part of the discharge link may be such that the central portion on the depth side is horizontal and both sides are tapered outwardly, and the depth side is from one side to the other side. The discharge portion may have a wedge shape when viewed from a plane, and the depth side of the discharge portion may hang downward from above in the drawing and be inclined toward the depth side.

[Embodiment 2] This embodiment is shown in FIG. 6, and the saw chain of the embodiment 1 is constituted by the drive link 10, the cutter link 12, the connecting link 26 and the discharge link 20 without the side link 32. However, in this example, the side link 32
This is an example in which adjacent drive links 10 are connected by.

The details of this embodiment will be described below with reference to the drawings.
As shown in FIG. 6, the drive links 10 are provided in an endless form, and a set of 6 drive links 10 is provided, and is provided between the 6 drive links 10 toward one side of the drive link 10. Cutter link 12, side link 32, discharge link 0, side link 32 provided with a blade portion 18 and so-called depth 16 and blade portion 18 and depth 16 provided toward the other side
The cutter links 12 with are combined in order.

The cutter link 12 straddles the adjacent drive links 10 and is caulked by a connecting link 26 as is known.

However, this connecting link 26 is rarely exposed on the front side in the drawing, and is on the back side in the drawing.

The side links 32 connected to the pair of adjacent drive links 10 are also caulked.

The discharge link 20 provided between the pair of cutter links 12 straddles the adjacent drive link 10 and cannot be seen in the drawing, but is caulked via the connecting link.

In this embodiment, as is clear from the above description, the cutter link 12, the side link 32, the discharge link 20, the side link 32 in which the blade portion 18 having an L-shaped cross section is directed to one side between the endless drive links 10. And a set of configurations in which the blade portions 18 are connected in the order of the cutter links 12 with the other side facing the other side, and are repeatedly combined.

However, although not shown, it is not limited to only providing one discharge link 20 between two pairs of adjacent cutter links 12, and the discharge link 20 is provided between two sets of cutter links 12. The inventor also plans to provide one or two discharge links 20 between three sets of cutter links 12.

As in the first embodiment, the difference in the number of the discharge links 20 and the cutter links 12 between the endless drive links 10 is determined by the flexibility of the discharged soil.

In other words, the number of cutter links 12 is small in the case of soft soil, and conversely, the number of cutter links 12 is preferably increased in the case of hard soil that is not flexible.

The inventor also plans that if the discharge links 20 are connected instead of the side links 32, the number of the discharge links 20 will be increased compared to the case shown.

Other configurations of this embodiment are the same as those of the first embodiment, and are omitted.

For example, the drive link 10 is provided with a notch 14, and the depth 16 of the cutter link 12 and the discharge link 20,
22 are respectively located in the traveling direction when the saw chain is used.

As for the structure of the discharge link 20, the structure of the first embodiment is used as a whole (see FIGS. 2 to 5).

Therefore, one of the discharge links 20 is provided with the depth 22, and the other is provided with the discharge portion 24.

[Third Embodiment] In the first and second embodiments, the discharge link 20 including the discharge portion 24 is coupled between the drive links 10 having a known structure. In this embodiment, the discharge link 20 is Although omitted, it replaces most of the known drive link 10 with depth.
Drive link 38 provided with a discharging portion 36 formed by bulging with 34
And a drive link 40 having only a bulging discharge part 36.

This embodiment will be described with reference to FIGS. 7 to 9 and, as shown in FIG. 7 on the drawing, it extends from the left side to the right side across two known drive links 10 and via a connecting link 26. The cutter link 12 having the depth 16 and the blade portion 18 described in the first and second embodiments is caulked to one side of the drive link 10.

And the depth shown in FIG. 8 through the side link 32.
Two drive links 38 having 34 and a discharge portion 36 are caulked to the other side of the adjacent side links 32.

Furthermore, on the other side between the side link 32 and the cutter link 12,
Another drive link 40 having only the discharge portion 36 shown in FIG. 9 is caulked.

The above-mentioned cutter link 12 is crimped to the other side across the other drive link 40 and the known drive link 10.

Further, the publicly known drive link 10 and the drive link 40 shown in FIG. 9 are connected via a side link 32.

In this example, the above-described configuration is repeatedly and continuously provided in an endless manner, and configurations not described in this example are the same as those in the first and second embodiments.

Example 4 This example is shown in FIG. 10 and is essentially Example 3.
Is not different from.

Briefly, the discharge portions 36 of the two types of drive links 38 and 40 used in the third embodiment are bulged, but the discharge portions of the two types of drive links 42 and 44 of this example are expanded.
46 does not bulge out, and is configured as a plate shape having the same thickness as the drive links 42, 44 main body.

Therefore, referring also to FIG. 7, most of the description is entirely incorporated.

More specifically, the drive link of the third embodiment on the drawing
A horizontal line is shown in the discharge portion 36 of 38 and 40 and is expanded (see FIG. 7), but a horizontal line is shown in the discharge portion 46 of each of the drive links 42 and 44 of the fourth embodiment. Indicates that it is a plate-like body integrated with the main body without being displayed. (See Figure 10).

Therefore, in this example, one drive link 42 is provided with the depth 48, and the other drive link 44 is provided with only the discharge portion 46 and is not provided with the depth.

[Embodiment 5] This is an example shown in FIG. 11 to FIG. 14, in which the drive link 50 having relatively small saw teeth is used as the side link 32.
In a saw chain configured to be connected endlessly through a drive link 50, a part of the drive link 50 is provided with a discharge part 52 (see FIG. 11).

Explaining this embodiment in detail with reference to the drawings, the structure of the saw teeth 54 of the drive link 50 itself is not different from the conventional product, but one side end on the same axis as the saw teeth 54 provided in a plurality of rows. The discharge part 52 is provided in a plate shape (see FIG. 12).

In this embodiment, the drive link 50 described above is endlessly provided via the side link 32, and the saw teeth 54 of the drive link 50 are located in the traveling direction during use.

In this example, each drive link 50 is provided with the discharge portion 52 in the drawing, but for some drive links 50 of the endlessly connected drive links 50, the provision of the discharge portion 52 may be omitted. The creator also plans.

The reason and purpose will be easily understood by the description of the first embodiment.

Explaining this example further, as described above in the above-described embodiment in which the discharging portion is swollen, the discharging portion 52 of this example may be swollen larger than the thickness of the drive link 50 main body.

As described above, it is desirable that the discharge portion 52 is bulged.

However, depending on the application, such as when the soil is flexible when used, it may not be necessary to bulge out, and by providing a thin plate-shaped discharge part 52 as shown in the figure, there is a benefit that the load during use is small. Will be understood.

Further, the drive link 50 including the discharging portion 52 shown in FIGS. 13 and 14 will be described.

The discharge portion 52 of the drive link 50 shown in FIG. 13 is an example biased to the front side in the drawing, and in the example shown in FIG. 14, the discharge portion 52 is biased to the back side.

The other structure is the same as that of the known drive link 10, and the notch 14 and the caulking hole 28 are provided.

Example 6 This example is shown in FIG. 15 and FIG.
A cutter link 60 having a saw tooth 56 and a discharge portion 58 straddling the drive link 10 is endlessly connected between the drive links 10 on one side and the other side of the drive link 10 via a connecting link 26. is there.

Explaining the details of the cutter link 60 of this embodiment with reference to FIG. 16, the discharge portion 58 is provided on one side by a steel material,
Saw teeth 56 are provided on the other side.

Reference numeral "28" in the drawing is a hole for caulking the drive link 10 as in the other embodiments.

Therefore, in this example as well, there is no essential difference from the other embodiments, and the description of the other embodiments is applied to the points not described.

[Embodiment 7] In this embodiment, the cutter links with a discharge portion shown in FIGS. 17 and 18 are joined endlessly.

This example is based on a combination of the drive link 10, the connecting link 26, the side link 32, and the cutter link 62 with a discharging portion.

However, the configurations of the drive link 10, the connecting link 26, and the side link 32 themselves, excluding the cutter link 62 with discharge, are the same as those known in the art.

As shown in the drawing, the structure of the cutter link 62 with a discharge part is that the depth 64 is provided on one side, the discharge part 66 is provided on the other side, and the blade part 68 is provided between the two.

Such a cutter link 62 with a discharge portion is connected to one side of the pair of drive links 10 via the connection link 26 across the adjacent drive links 10 between the endlessly connected drive links 10. A side link 32 is provided across a pair of adjacent drive links 10, and a cutter link 62 with a discharge portion is connected to the other side across the drive link 10 adjacent to the side link 32.

In this embodiment, the attachment positions of the cutter link 62 with a discharge portion to the drive link 10 are alternately provided on one side and the other side of the drive link 10, but they are not necessarily alternated.

For example, two adjacent cutter links 62 with an ejector may be provided on one side of the drive link 10, and two adjacent cutter links 62 with an ejector may be arranged on the other side of the drive link 10. .

In the example shown in the drawings, one side link 32 is provided between a pair of adjacent cutter links 62 with a discharge part and is connected across the drive link 10. However, this side link 32 is omitted. It is expected to do.

The point that this example is not described will be easily understood from the above description of the embodiment.

[Effect of device]

Since the present invention has the above configuration, it has the following operational effects.

Conventional saw chainsaws for saw chains were able to perform only the function of cutting trees on the ground, but in this invention, the function of discharging the excavated soil by the cutter link and the saw blade effectively discharges the entire surface d. Since the discharge link and the discharge section provided with are provided, the cutter link and the like can easily proceed even in the ground, and excavation and discharge of soil and cutting of roots can be performed at the same time.

Therefore, it is not necessary to dig up around the root with a scoop or the like and cut with a saw or a mortar as is conventionally practiced.

Also, the roots of trees in the ground can be cut as they are with a saw chain, which contributes to improvement in workability.

[Brief description of drawings]

FIG. 1 is a front view showing a part of Embodiment 1 of the present invention with a part omitted, FIGS. 2 to 4 are enlarged perspective views of a discharge link of Embodiment 1, and FIG. 5 is a main part of FIG. FIG. 6 is a schematic enlarged side view of FIG. 6, which is an explanatory view schematically showing the relationship between the height and width of the blade portions of a pair of opposing cutter links, and FIG. 6 omits a part of the second embodiment. FIG. 7 is a front view with a part of the third embodiment omitted, FIGS. 8 and 9 are enlarged perspective views of the drive link of the third embodiment, and FIG. 10 is the fourth embodiment. FIG. 11 is a front view with a part omitted, FIG. 11 is a front view with a part omitted of the fifth embodiment, and FIGS. 12 to 14 are enlarged perspective views of drive links of the fifth embodiment. Is a front view showing a part of the sixth embodiment omitted, FIG. 16 is an enlarged perspective view of a cutter link of the sixth embodiment, and FIG. 17 is a front view showing a part of the seventh link omitted. The illustration shows the ejector FIG. 19 is a perspective view of a cutter link with a mark, and FIG. 19 is a front view showing a part of the prior art omitted. (Explanation of symbols of main parts) 12 …… Cutter link 18 …… Blade section 20 …… Discharge link 24 …… Discharge section (Discharge link) D …… Blade width d …… Width (Discharge section) 50 …… Drive link 52 …… Ejection part 54 …… Sawtooth 56 …… Sawtooth 58 …… Ejection part 60 …… Cutter link 62 …… Cutter link with ejection part 64 …… Depth 66 …… Ejection part 68 …… Blade part

Claims (4)

[Scope of utility model registration request] 1. A chain saw in which drive links are continuously and endlessly connected, cutter links are provided at regular intervals across a pair of adjacent drive links, and discharge links are provided between the cutter links. In the saw chain, the discharge link 20 has a width d that is less than or equal to the blade width D formed by the blade portion 18 of the cutter link 12 and greater than or equal to the thickness of the discharge link 20,
A saw chain for a chain saw, wherein a discharging portion 24 having a discharging surface over substantially the entire width d is provided at one end of the discharging link 20. 2. A saw chain for a chain saw in which adjacent drive links are continuously and endlessly connected via side links, and a relatively small saw tooth 54 is provided on one side of the drive link 50.
A saw chain for a chain saw, which is provided with a discharge part 52 on the other side. 3. A saw chain for a chain saw in which drive links are continuously and endlessly connected to each other, and a cutter link 60 having a relatively small saw tooth 56 on one side and a discharge portion 58 on the other side is provided. A saw chain for a chain saw, characterized by being connected between 10 pieces. 4. A saw chain for a chain saw, in which drive links are continuously and endlessly connected to each other, a depth 64 is provided on one side, and a discharge portion 66 is provided on the other side, and the depth 64 and the discharge portion 66 are provided. A cutter link 62 with a discharge part, in which a blade 68 is provided between
A saw chain for a chain saw, which is provided by straddling 10.