JP2008120066A - Guiding device for chain saw, chain saw and method for cutting material to be cut - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To achieve precise sawing by stably supporting a material to be cut by a guide bar and by smoothly moving the guide bar even if the surface of the material to be cut is not flat. <P>SOLUTION: A guiding device for chain saw has a roller 9 which rolls on the surface of the material 6 to be cut along a plane direction of the guide bar 1 when the material 6 is cut, and a supporting body 10 fitted to the guide bar 1 for rotatably supporting the roller 9. The supporting body 10 has a holding part 13 for holding the roller 9 so that the roller 9 faces the chain saw teeth 2 and that a rotating shaft 12 of the roller is orthogonal to the plane direction of the guide bar 1, and a pair of legs 14 extended from the holding part 13 and fixed to a lateral face of the guide bar 1 by bestriding the chain saw teeth 2. The supporting body is removably provided on the guide bar 1. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a chain saw guide device that is attached to a chain saw that cuts a material to be cut such as wood and facilitates the movement of the chain saw during cutting, a chain saw provided with the chain saw guide device, and a method for cutting the material to be cut. .

  In general, as shown in FIG. 12, a chain saw Ca includes a chain blade 2 for cutting a material 6 made of wood, a guide bar 1 protruding from a main body 8 and wound around the periphery of the chain blade 2, and a main body. 8, a handle 4 provided with a switch trigger 3 and a grip 5 are provided. When the workpiece 6 is cut with the chain saw Ca, the operator moves the chain saw Ca while holding the handle 4 with one hand and the grip 5 with the other hand. At this time, since the chainsaw Ca is moved by hand, an operator with a low level of skill may not be able to cut the workpiece 6 by accurately moving the guide bar 1 because of the wobble due to the weight of the chainsaw Ca. . In particular, when the material to be cut 6 is a log, and when this is cut in the longitudinal direction, it is difficult to cut straight, and the cutting accuracy is impaired.

  Therefore, in the prior art, as shown in FIG. 12, the main body 8 is provided with a projection 7 that is slidably contacted with the material 6 to be cut, and during operation, the protrusion 7 is slidably contacted with the material 6 to be cut. Is supported by the material 6 to be cut, and rattling is suppressed so that the guide bar 1 can be moved smoothly (for example, disclosed in JP-A-8-267401).

JP-A-8-267401

  However, in this conventional chainsaw Ca, since the projection 7 is a flat surface, when the material 6 to be cut is a curved surface such as a log, the projection 7 is on the surface of the material 6 to be cut. There is a problem that it is easy to be caught and it is difficult to move the guide bar 1 smoothly, resulting in poor operability.

  The present invention was made in view of such a problem, and even if the surface of the material to be cut is not flat, the support of the guide bar to the material to be cut is stabilized, and the guide bar can be moved smoothly, An object of the present invention is to provide a chain saw guide device capable of producing lumber with high accuracy and a chain saw provided with the chain saw guide device.

  In order to achieve such an object, the chain saw guide device of the present invention is formed by winding an endless chain blade for cutting a material to be cut around the periphery of a plate-shaped guide bar protruding from the main body. In a chain saw guide device attached to a chainsaw that cuts the material to be cut by moving the chain blade along the surface direction of the guide bar with respect to the material to be cut, the surface direction of the guide bar when the material to be cut is cut And a support that is attached to the guide bar and supports the roller in a rollable manner.

  Thus, for example, when the material to be cut is a log, and when cutting this in the longitudinal direction, the guide bar is moved while the roller is rolled to the surface of the material to be cut and the chain saw is supported by the material to be cut. Move. In this case, the roller rolls on the surface of the material to be cut along the surface direction of the guide bar, and unlike the case of the conventional flat projection, it is difficult to be caught on the surface of the material to be cut and the support is stabilized. Therefore, the guide bar can be moved smoothly, and therefore, the lumber can be made with high accuracy.

  And it was set as the structure which made the said support body detachable with respect to the said guide bar as needed. Thereby, since a support body can be attached only when needed, when cutting a standing tree, for example, a support body can be removed and it can use for normal cutting. Further, the position of the support can be easily changed, the length of the guide bar can be adjusted to the size of the material to be cut, and a stable operation can be performed without touching other contact objects.

Further, if necessary, the support body is extended to the holding portion and a holding portion for holding the roller so that the roller faces the chain blade and the rotation axis of the roller is orthogonal to the surface direction of the guide bar. It was set as the structure provided with a pair of leg part fixed to the side surface of the said guide bar across the said chain blade. As a result, the roller can also move on the moving line of the guide bar during work, so that the balance is good and the support is further stabilized. Further, since the leg portion is attached across the chain blade, the roller and the chain blade are not in contact with each other, and the rotation of the roller and the rotation of the chain blade are not hindered.
Furthermore, it was set as the structure provided with the locking mechanism which locks the said leg part releasably with respect to the said guide bar as needed. Accordingly, the support body is attached and detached by locking and unlocking the lock mechanism, so that the attachment and detachment work can be easily performed.

  In addition, if necessary, the holding unit may include a base member, an arm that holds the roller at one end and is pivotally supported by the base member at the other end, and swings. The base member and the base member A spring provided between the arm and biasing the arm in the direction opposite to the movement of the roller in the direction of the base member is provided, and a stopper that defines the swing range of the roller. Thereby, when cutting, the guide bar is advanced while the chain saw is manually pushed or pulled in the longitudinal direction of the guide bar to bring the roller into contact with the material to be cut. In this case, even if the chain saw moves in the longitudinal direction of the guide bar due to subtle movements of the hand or the unevenness of the material to be cut, the roller is elastically contacted with the material to be cut by the spring. The followability with respect to can be improved and stable cutting can be performed. Further, since the stopper is provided, the roller swings within a predetermined swing range, so that it does not come into contact with the holding portion and the rotation of the roller is not hindered.

  Moreover, it was set as the structure provided with the level for visually confirming the inclination of the said guide bar at the time of the movement of the said chainsaw as needed. Thereby, when moving the guide bar vertically, the operator can easily know whether or not the guide bar is in a vertical posture with respect to the workpiece, since the posture can be appropriately corrected, Even in this respect, the lumber can be accurately produced.

  Further, if necessary, a laser marking device for sending a laser beam for projecting a cutting line of the material to be cut to the material to be cut, and a reference line located on a virtual plane through which the guide bar passes are drawn and It was set as the structure provided with the light-receiving plate which reflects a laser beam. Thereby, when putting a cutting line in a cutting part, the place where it is difficult to use a tape measure, such as a place with unevenness and a place out of reach, can easily make the cutting line clear. In addition, a reference line located on a virtual plane through which the guide bar passes is drawn on the light receiving plate, and it is only necessary to advance the guide bar so that the cutting line is located on this virtual plane. Since the guide bar can be moved so that the laser beam reflected on the light receiving plate matches the reference line when viewed from the light receiving plate, the posture of the guide bar can be easily corrected. You can lumber. In addition, when the operator looks at the cutting line, it is not necessary to look at the contact portion between the guide bar and the material to be cut, and the operator can work in a situation where the laser beam can be easily seen.

  The technical means of the present invention for achieving the above object is a chain saw provided with any of the above-described chain saw guide devices. The support of the guide bar with respect to the material to be cut is stabilized, the guide bar can be moved smoothly, and the lumber can be made with high accuracy.

  Furthermore, the method for cutting a material to be cut according to the present invention for achieving the above object is the method for cutting a material to be cut using a chain saw provided with the above-mentioned chain saw guide device. The guide device is attached to the tip of the guide bar of the chainsaw, the cutting line is marked on the surface of the material to be cut, and the cutting material is cut along the cutting line marked on the tip of the chain saw guide bar. A groove in which the roller of the chain saw guide device is movably engaged is formed, and when the material to be cut is cut by the chain saw, the roller of the chain saw guide device is engaged in the groove, and the groove It is made to cut while rolling.

  Thus, for example, when the material to be cut is a log, and when cutting this in the longitudinal direction, the guide bar is moved while the roller is rolled into the groove of the material to be cut and the chain saw is supported by the material to be cut. Move. In this case, since the cutting line marked on the operator side can be visually observed, the guide bar can be moved so as not to remove the cutting line. In addition, the cutting line marked on the opposite side of the operator cannot be visually observed, but the roller rolls in a groove along the cutting line, so that the cutting operation is performed without the tip of the guide bar being off the cutting line. Can do. Therefore, it can be made with high accuracy, and even a person with low skill level can easily perform the cutting operation.

  According to the chain saw guide device of the present invention, the roller that rolls on the surface of the material to be cut along the surface direction of the guide bar when the material to be cut is cut is attached. The surface of the material to be cut can be rolled, so even if the surface of the material to be cut is a curved surface like a log, it is difficult to be caught on the surface of the material to be cut, and the support of the chain saw is stabilized and smooth. Therefore, the guide bar can be moved to the lumber, so that the lumber can be made with high accuracy.

Hereinafter, a chain saw guide device according to an embodiment of the present invention will be described with reference to the accompanying drawings. In addition, the same code | symbol is attached | subjected and demonstrated to the same thing as the above.
1 to 4 show a chain saw guide device according to a first embodiment of the present invention. This is attached to the chainsaw C. The chain saw C is formed by winding an endless chain blade 2 around the periphery of a plate-shaped guide bar 1 projecting from a main body 8. The chain saw C is formed by providing a grip 5 formed in a U shape on the operator side from the main body 8 and a handle 4 on the opposite side.

The chain saw guide device includes a roller 9 that rolls on the surface of the workpiece 6 along the surface direction of the guide bar 1 when the workpiece 6 is cut, and a roller 9 that is attached to the guide bar 1 so as to be able to roll. And a support 10 that is configured.
The support 10 includes a holding portion 13 that holds the roller 9 so as to face the chain blade 2 and that the rotation shaft 12 of the roller 9 is orthogonal to the surface direction of the guide bar 1, and extends to the holding portion 13 to extend the chain blade 2. And a pair of leg portions 14 fixed to the side surface of the guide bar 1. The holding portion 13 is formed in a U-shaped cross section and holds the rotary shaft 12 so that the roller 9 is pivotally supported on the rotary shaft 12.

  The support body 10 includes a lock mechanism 16 that releasably locks the leg portion 14 with respect to the guide bar 1. The lock mechanism 16 includes a female screw 11 that is formed on the leg portion 14 and whose axis is orthogonal to the side surface of the guide bar 1, and a screw 15 that is screwed into the female screw 11. A pair of female screw 11 and screw 15 is provided. Thereby, the support body 10 is attached and fixed to the guide bar 1 at an arbitrary place with the two screws 15. At this time, the one leg portion 14 is brought into contact with the guide bar 1, the screw 15 is screwed into the female screw 11 of the other leg portion 14, and the one leg portion 14 and the screw 15 are held and fixed. Therefore, the lock can be released simply by removing the screw 15 and the attachment / detachment is possible.

  The chain saw guide device also includes a level 17 for visually checking the inclination of the guide bar 1 when the chainsaw C is moved. The level 17 is configured by sealing one bubble in a glass container containing alcohol or a nonflammable special solution. Since the horizontal plane of the container is a very delicate curved surface, the position of the bubble changes depending on the angle of the surface on which the level 17 is placed, and if it is tilted a little, the bubble moves away from the center of the container. Above, the bubble comes to the center and stops. The level 17 is attached and fixed to an arbitrary place where an operator can easily see during the work.

  In addition, the present apparatus includes a laser marking device 20 that sends a laser beam that projects a cutting line 19 to the workpiece 6. The laser marking device 20 can emit a linear laser beam in the horizontal and vertical directions. In addition, the apparatus includes a light receiving plate 22 that is attached to the main body 8 and reflects a laser beam on which a reference line 21 is drawn on the virtual plane S through which the guide bar 1 passes. The light receiving plate 22 is attached and fixed at a location where the reference line 21 is positioned on the center plane (virtual plane S) of the guide bar 1 and is easily visible to the operator.

  Therefore, when the cutting operation is performed using the chain saw guide device according to the first embodiment, the operation is as follows. This cutting is a case where the material 6 to be cut is a log and is cut in the longitudinal direction. First, the support 10 is attached to the guide bar 1. For attachment, one leg portion 14 is brought into contact with the guide bar 1, a screw 15 is screwed into the female screw 11 of the other leg portion 14, and the one leg portion 14 and the screw 15 are held and fixed. If the screw 15 is removed, the lock can be released and it can be detached. Therefore, the position of the support 10 can be easily changed, and the length of the guide bar 1 can be adjusted to the size of the workpiece 6.

  Next, in this state, the chainsaw C is driven to perform a cutting operation. In this case, a laser beam is applied to the object to be cut 6 from the laser marking device 20 to clarify the cutting portion. Then, the guide bar 1 is brought into contact with the end of the workpiece 6 so that the laser beam overlaps the reference line 21 of the light receiving plate 22. The handle 4 is held with one hand and the grip 5 is held with the other hand, and the chain blade 2 is driven to rotate. In this state, the cutting operation is performed so that the guide bar 1 passes through the path of the laser beam. The guide bar 1 is moved while rolling so that the roller 9 is brought into contact with the workpiece 6 and the guide bar 1 can move smoothly. At this time, if the guide bar 1 is tilted during the operation, the path of the laser light is removed, so the operation is performed while visually checking the level 17 attached to the chainsaw C. A reference line 21 is drawn on the light receiving plate 22 on the virtual plane S through which the guide bar 1 passes, and the guide bar 1 can be advanced so that the cutting line 19 is positioned on the virtual plane S. Therefore, the operator only has to move the guide bar 1 so that the laser beam reflected on the light receiving plate 22 and the reference line 21 coincide with each other when viewing the light receiving plate 22. It can be easily corrected, so that it is possible to produce lumber with high accuracy in this respect. For this reason, even a less skilled person can easily perform the cutting operation.

  At this time, the roller 9 is not easily caught even if the surface of the material 6 to be cut is uneven or a curved surface such as a log, so that the support of the chainsaw C is stabilized and the guide bar 1 is moved smoothly. Can do. Further, since the length of the guide bar 1 can be adjusted to the size of the material 6 to be cut, the chain blade 2 does not touch a contact object such as a stone or other cut object during the operation, and the guide bar 1 can be moved. It can go smoothly. For this reason, even a less skilled person can easily perform the cutting operation.

  Further, since the roller 9 and the support 10 can be attached only when necessary, for example, when cutting a standing tree, the roller 9 and the support 10 can be removed from the guide bar 1, and the work can be performed only with the chainsaw C. Can be done. If the work accuracy does not change even if there is no device for supporting the guide bar 1 such as cutting a standing tree, the work can be performed with the rollers 9 and the support 10 removed and the chainsaw C lightened.

5 and 6 show an example of another cutting method performed using the chain saw guide device according to the first embodiment of the present invention.
When the cutting operation is performed by this other cutting method, the operation is as follows. This is a cutting method when the laser marking device 20 is not used. First, the support 10 is attached to the guide bar 1. At this time, the support 10 is attached to the tip 7 of the chainsaw C. Attachment and removal are the same as the cutting method of the above embodiment. In this case, the position of the support 10 can be easily changed, and the cutting width of the guide bar 1 can be adjusted to the size of the material 6 to be cut.

  In addition, the cutting line 19 is marked on the workpiece 6 to clarify the cutting location. Then, a groove 30 is formed along the cutting line 19 of the workpiece 6 so that the roller 9 of the chain saw guide device can be rolled. At this time, the groove 30 may be formed only in the cutting line 19 in the direction along the cutting line 19 marked on the tip 7 side of the guide bar 1 of the chainsaw C, that is, the cutting line 19 on the side opposite to the operator. . In this state, the chainsaw C is driven to perform a cutting operation. In this case, the guide bar 1 is brought into contact with the cutting line 19 and the roller 9 is engaged in the groove 30. Holding the handle 4 with one hand and the grip 5 with the other hand, the guide bar is moved so that the guide bar 1 passes the cutting line 19, and the cutting operation is performed. The guide bar 1 is moved while rolling the roller 9 so that the guide bar 1 can move smoothly. In this case, since the cutting line 19 on the operator side can be seen, the guide bar 1 can be moved so as not to remove the cutting line 19. Further, although the cutting line 19 on the side opposite to the operator cannot be visually observed, the roller 9 rolls in the groove 30 formed along the cutting line 19, so that the tip 7 of the guide bar 1 deviates from the cutting line 19. The cutting operation can be performed without any problems. Therefore, it can be made with high accuracy, and even a person with low skill level can easily perform the cutting operation. At this time, the roller 9 is not easily caught even if the contact surface between the roller 9 and the groove 30 is uneven, so that the support of the chainsaw C is stable and the guide bar 1 can be moved smoothly.

  7 to 9 show a chain saw guide device according to a second embodiment of the present invention. In this configuration, the holding unit 13 includes a base member 40, an arm 43, a spring 44, and a stopper 45. Other configurations are the same as those of the first embodiment.

The base member 40 includes a base 41 and a support column 42.
As shown in FIGS. 7 to 9, the base 41 is formed in a rectangular parallelepiped shape, and a pair of leg portions 14 are extended.
As shown in FIGS. 7 to 9, the support column 42 is provided on the opposite side of the base 41 from the side on which the leg portion 14 is extended, and an arm 43 described later is provided at the tip thereof.

As shown in FIGS. 7 to 9, the arm 43 rotatably holds the roller 9 at one end 43 a, and the other end 43 b is pivotally supported by the column 42 of the base member 40. A pair of the arms 43 are provided with the roller 9 and the column 42 interposed therebetween.
7 to 9, the spring 44 is provided between the support column 42 and the arm 43, and urges the arm 43 in the direction opposite to the movement of the roller 9 in the base member 40 side direction. . The spring 44 is provided on the outer periphery of a fixed portion 46 having one end sandwiched between a pair of arms 43 and the other end fixed to the base portion 41.
As shown in FIGS. 7 and 9, the stopper 45 includes a stopper 45 a that stops the movement of the arm 43 in the direction of the base member 40, and a stopper 45 b that stops the movement of the arm 43 in the direction opposite to the direction of the base member 40. Each of which is provided on the support 42. The stopper 45 a is provided at a predetermined position so that the roller 9 does not contact the base member 40.

  Therefore, when cutting operation is performed using this chain saw guide device, the operation is as follows. This is a cutting method when the laser marking device 20 is not used. First, the support 10 is attached to the guide bar 1. At this time, the support 10 is attached to the tip 7 of the chainsaw C. Attachment and removal are the same as in the other cutting method of the first embodiment. In this case, the position of the support 10 can be easily changed, and the cutting width of the guide bar 1 can be adjusted to the size of the material 6 to be cut.

  In addition, the cutting line 19 is marked on the material 6 to be cut to clarify the cutting location. And the groove | channel 30 in which the roller 9 of the guide apparatus for chain saws engages so that rolling is possible is formed along the cutting line 19 of the to-be-cut material 6. FIG. At this time, the groove 30 may be formed only in the cutting line 19 in the direction along the cutting line 19 marked on the tip 7 side of the guide bar 1 of the chainsaw C, that is, the cutting line 19 on the side opposite to the operator. . In this state, the chainsaw C is driven to perform a cutting operation. In this case, the guide bar 1 is brought into contact with the cutting line 19 and the roller 9 is engaged in the groove 30. The handle 4 is grasped with one hand and the grip 5 is grasped with the other hand, and the guide bar 1 is moved so that the guide bar 1 passes the cutting line 19 to perform the cutting operation. The guide bar 1 is moved while the roller 9 is brought into contact with the material to be cut 6 by manually pushing or pulling the chain saw C in the longitudinal direction of the guide bar 1 so that the guide bar 1 can move smoothly. I will move.

  In this case, since the cutting line 19 on the operator side can be seen, the guide bar 1 can be moved so as not to remove the cutting line 19. Further, although the cutting line 19 on the side opposite to the operator cannot be visually observed, the roller 9 rolls in the groove 30 formed along the cutting line 19, so that the tip 7 of the guide bar 1 deviates from the cutting line 19. The cutting operation can be performed without any problems. Further, even if the chainsaw C moves in the longitudinal direction of the guide bar 1 due to a slight movement of the hand or the unevenness of the workpiece 6, the roller 9 is elastically contacted with the workpiece 6 by the spring 44. The followability of the roller 9 to the workpiece 6 is improved, and stable cutting can be performed. Further, since the stopper 45 is provided, the roller 9 swings within a predetermined swing range, and therefore does not come into contact with the holding portion 13 and the rotation of the roller 9 is not hindered. Therefore, it can be made with high accuracy, and even a person with low skill level can easily perform the cutting operation.

  FIG. 10 shows a modification of the chain saw guide device according to the first embodiment of the present invention. This is because a roller 9 that rolls on the surface of the material to be cut 6 along the surface direction of the guide bar 1 when the material to be cut 6 is cut, and one end is attached to the guide bar 1 and the roller 9 is rotatable at the other end. And a lock mechanism 16 that releasably locks the other end of the support 10 with respect to the guide bar 1. The lock mechanism 16 includes a screw 15 inserted through a hole provided in the guide bar 1 and a hole provided at one end of the support 10, and a nut 18 screwed into the screw 15. A pair of screws 15 and nuts 18 is provided. Further, the guide bar 1 is provided with a plurality of holes, which are appropriately selected according to the size of the material 6 to be cut, and the mounting position of the support 10 is adjusted.

  FIG. 11 shows another modification of the chain saw guide device according to the first embodiment of the present invention. This is provided with a pair of rollers 9 and supports 10 shown in FIG. 7 and these are provided on both sides of the guide bar 1, respectively.

  The number of rollers 9, the number of supports 10, and the form of the lock mechanism 16 are not limited to those described above, and can be changed as appropriate. In the above embodiment, the workpiece 6 is made of a log, but is not necessarily limited to this, and any material may be used as long as it is a wood such as a square.

It is a perspective view which shows the guide apparatus for chainsaws concerning 1st embodiment of this invention with the attachment state to a chainsaw, and its use state. It is an expansion perspective view which shows the attachment state of the roller and support body of the guide apparatus for chainsaws concerning 1st embodiment of this invention. It is front sectional drawing which shows the roller and support body of the chain saw guide apparatus which concern on 1st embodiment of this invention. It is a side view which shows the attachment state of the chain saw guide apparatus which concerns on 1st embodiment of this invention. It is a perspective view which shows another cutting method using the guide apparatus for chainsaws concerning 1st embodiment of this invention. In another cutting method using the chainsaw guide device according to the first embodiment of the present invention, it is an enlarged perspective view showing the attached state of the roller and the support body of the chainsaw guide device. It is an expansion perspective view which shows the roller and support body of the guide apparatus for chainsaws concerning 2nd embodiment of this invention. It is a perspective view which shows the guide apparatus for chainsaws concerning 2nd embodiment of this invention with the attachment state to a chainsaw, and its use state. It is an expansion perspective view which shows the attachment state of the roller of the chainsaw guide apparatus which concerns on 2nd embodiment of this invention, and a support body. It is sectional drawing which shows the roller and support body of the modification of the guide apparatus for chainsaws concerning 1st embodiment of this invention. It is sectional drawing which shows the roller and support body of another modification of the chain saw guide apparatus which concerns on 1st embodiment of this invention. It is a figure which shows an example of the conventional chain saw.

Explanation of symbols

C Chain saw S Virtual surface 1 Guide bar 2 Chain blade 4 Handle 5 Grip 6 Material 7 Cutting end 8 Body 9 Roller 10 Support 11 Female thread 12 Rotating shaft 13 Holding part 14 Leg 15 Screw 16 Locking mechanism 17 Level 18 Nut 19 Cutting line 20 Laser marking device 21 Reference line 22 Light receiving plate 30 Groove 40 Base member 41 Base portion 42 Support column 43 Arm 44 Spring 45 Stopper 46 Fixing portion

Claims (9)

An endless chain blade that cuts the material to be cut is wound around the periphery of a plate-shaped guide bar protruding from the main body, and the chain blade is cut along the surface direction of the guide bar with respect to the material to be cut. In a chain saw guide device attached to a chain saw that moves and cuts the material to be cut,
A roller that rolls the surface of the workpiece along the surface direction of the guide bar when the workpiece is cut;
A chain saw guide device comprising: a support body attached to the guide bar and supporting the roller in a rollable manner.   2. The chain saw guide device according to claim 1, wherein the support is detachable from the guide bar.   A holding portion that holds the support so that the roller faces the chain blade and the rotation axis of the roller is orthogonal to the surface direction of the guide bar; and the support member is extended to the holding portion and straddles the chain blade The chain saw guide device according to claim 2, further comprising a pair of legs fixed to a side surface of the guide bar.   The chain saw guide device according to claim 3, further comprising a lock mechanism that releasably locks the leg portion with respect to the guide bar.   The holding portion is provided between a base member, an arm that holds the roller at one end and pivotally supports the other end rotatably on the base member, and the base member and the arm. 5. The apparatus according to claim 1, further comprising a spring that urges the arm in a direction opposite to the movement of the roller in the direction toward the base member, and a stopper that defines a swing range of the roller. The chain saw guide device according to any one of the above.   The chain saw guide device according to any one of claims 1 to 5, further comprising a level for visually confirming the inclination of the guide bar when the chain saw moves.   A laser marking device that emits a laser beam that projects a cutting line of the material to be cut, and a light receiving light that reflects the laser light drawn on a reference line that is located on a virtual plane through which the guide bar passes. A chain saw guide device according to any one of claims 1 to 6, further comprising a plate.   A chain saw comprising the chain saw guide device according to any one of claims 1 to 7. In the cutting method of the cut material which cuts the cut material using the chainsaw provided with the chain saw guide device according to any one of claims 1 to 7,
The chain saw guide device is attached to the tip of the chain saw guide bar, a cutting line is marked on the surface of the material to be cut, and the cutting material is cut along the cutting line marked on the tip of the chain saw guide bar. Forming a groove in which the roller of the chain saw guide device is movably engaged in a direction, and when cutting the material to be cut with the chain saw, the roller of the chain saw guide device is engaged in the groove; A method for cutting a material to be cut, wherein the groove is cut while rolling.

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