JP3305229B2 - Simple wood cutting equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a simple wood cutting apparatus for cutting wood such as logs.

[0002]

2. Description of the Related Art In order to cut logs into appropriate dimensions, a saw mill uses a device in which a circular saw is mounted on a large table so that it can be moved up and down and moved horizontally, and the logs are placed on the table. I had to slice it. Such an apparatus is large and expensive, although the cutting operation is easy.

A simple device for cutting logs is proposed in Japanese Patent Application Laid-Open No. 59-54501. This device is composed of a gripping frame for gripping a log, and an engine-driven chain saw mounted on the frame so as to be able to move up and down. The cutting frame is attached to the log, and the cutting operation is performed by pushing down the chain saw. .

[0004]

However, since the apparatus disclosed in Japanese Patent Application Laid-Open No. 59-54501 is intended to be used at a logging site, the saw blade of a chain saw remains exposed, and a sawmill is used. It was hard to say that it was safe to use. In addition, wood chips are scattered,
There was a problem in use indoors. Furthermore, when the blade of the chain saw enters the lumber, the cut end of the wood bites the blade,
The resistance to the blade increased, and it was necessary to push down the chain saw with strong force during cutting. Conversely, when raising the chain saw upward, the heavy chain saw was lifted as it was. That is, power is required to raise and lower the chain saw, and workability is poor.

The present invention has been made to solve the above-mentioned problem, and an object of the present invention is to provide a simple wood cutting device having a simple structure capable of safely cutting wood.

[0006]

According to a first aspect of the present invention, there is provided a simple wood cutting apparatus, comprising: An electric chain saw that cuts the cut wood, and a bag-shaped member that is attached to the mount so as to be able to move up and down and that can cover the blade of the chain saw and that has a released bottom surface that can hold down the wood . The top side of the wood
A technical feature is that the carry-out side is inclined forward.

[0007]

Furthermore, according to claim 2, in claim 1, with respect to weight of the chain saw, and technical features in that a biasing device which urged upward.

Further, claim 3 is claim 1 or claim 2
In the above, a technical feature is that a duct for carrying out wood chips is provided on the gantry.

[0010] A fourth aspect of the present invention is characterized in that, in the first to third aspects, a lock device for stopping the elevation of the chain saw is provided.

According to the first aspect of the present invention, the blade of the chain saw can be covered with the bag-shaped member, so that it is safe and the scattering of chips can be prevented. Further, by holding the wood with the bag-like member, displacement of the wood during cutting can be eliminated, and the target portion can be cut accurately.

[0012] In addition, since the upper surface of the frame are tilted forward,
When the blade of the chain saw enters the timber, the cut end of the wood
Since the blade is not bitten by being inclined in the opening direction of the cut, the cutting operation is easy.

According to the second aspect of the present invention, since the urging device for urging the chain saw upward with respect to the weight is provided, the chain saw can be easily moved up and down.

According to the third aspect of the present invention, since the duct for carrying out the wood chips is provided on the mount, the chips are not scattered.

According to the fourth aspect of the present invention, the chain saw can be fixed by the lock device for stopping the vertical movement, which is safe.

[0016]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a simplified wood cutting apparatus according to an embodiment of the present invention. FIG. 1 is a perspective view showing the appearance of the simple wood cutting device according to the present embodiment, FIG. 2 is a side view seen from the arrow A side in FIG. 1, and FIG. 3 is a view from the arrow B side in FIG. It is the rear view seen.

As shown in FIG. 1, a simple wood cutting device 10
Is composed of a gantry 20 for mounting logs, a transport roller 30 for carrying the logs into the gantry 20, and an electric chain saw 40 for cutting the logs. Transport roller 3
0 is a roller 32 for rolling logs as shown in FIG.
Are arranged side by side at a pitch of 100 mm. The upper end surface 22 on which the log of the gantry 20 is placed is located on the carrying side 22a.
0, and is formed horizontally at substantially the same height as the upper end surface of the zero, and the carry-out side 22b is formed to be inclined forward.

A holding cover 50 for covering the blade 42 of the chain saw 40 is provided on the gantry 20 so as to be vertically movable. The holding cover 50 is a cubic metal member with its lower end released. A slit (not shown) for penetrating the blade 42 of the chain saw 40 is formed on the left side surface of the holding cover 50 shown in FIG. The right end of the holding cover 50 in FIG. 2 is slidably supported by a holding bracket 54 having a U-shaped cross section, and the left end is supported by a guide column 56.

Regarding the support structure by the guide column 56,
This will be described with reference to FIG. The guide column 56
A cylinder 58 having a built-in damping mechanism is erected at the upper end thereof, and a pole 60 from the cylinder 58 is connected to the upper end of the holding cover 50. As shown in FIG. 2, two linear guides 62 are provided on the side surface of the guide column 56, and support the holding cover 50 so as to be able to move up and down.

As shown in FIG. 2, an opening 54a is formed in the center of the holding metal fitting 54 for supporting the holding cover 50, and a laser irradiator 64 is provided in the opening 54a. I have. This laser irradiator 64 is
By irradiating the log with laser light along the portion where the zero blade hits, the operator can confirm the cut end.

As shown in FIG. 2, a through hole 20a is formed in the upper surface of the gantry 20 so as to communicate with the lower end of the holding bracket 54, and a duct 66 is provided on a side surface of the gantry 20. . Chips generated at the time of log cutting are guided from the holding cover 50 formed in a bag shape to the inside of the gantry 20 via a holding metal fitting 54 having a U-shaped cross section, and an external chip storage tank ( (Not shown).

As shown in FIG. 1, a dustproof wall 68 is provided on the side of the gantry 20 on the worker side so that chips are not scattered to the worker side during log cutting. The dustproof wall 6
8 is provided with a slit 68a through which the blade 42 of the chain saw 40 is inserted.

As shown in FIG. 2, the chain saw 40 is fixed to an L-shaped support plate 72, and the inverted L
The support pillar 70 is shaped like a letter so as to be able to move up and down. A spring balancer 74 is suspended from the support column 70. Wire 76 from spring balancer 74
Are connected to the support plate 72. In other words, the spring balancer 74 urges the chain saw 40 in a direction to lift the chain saw 40, thereby making it easy for the operator to lift the chain saw 40.

As shown in FIG. 2, a lock 80 is mounted at the center of the support plate 72. Lock 80
Cylindrical key 82 slidable in the horizontal direction (perpendicular to the paper)
The chain saw 40 can be locked by fitting the key 82 into a through hole 72 a formed in the support plate 72.

Next, a log cutting operation by the simple wood cutting apparatus 10 of the present embodiment will be described with reference to FIGS. The log M is placed on the transport roller 30 and transported to the gantry 20 side. Then, a laser beam is emitted from the laser irradiator 64 to align the position with the cut end of the log M. Then, the holding cover 50 is lowered as shown in FIG.
By suppressing the log M, the displacement of the log during cutting is eliminated, so that the log can be cut accurately at a target position. Here, the lock 80 (see FIG. 2) is removed, and the chain saw 4 is removed.
At the same time, the start switch (not shown) of the chain saw 40 is turned on, and the rotation of the blade 42 is started.

Then, the chain saw 40 is lowered to start cutting logs. Simple wood cutting device 10 of the present embodiment
Then, the blade 42 of the chain saw is connected to the bag-shaped holding cover 50.
, It is safe and can prevent chips from scattering. As described above with reference to FIG. 2, the chips in the holding cover 50 are guided from the holding cover 50 formed in a bag shape to the inside of the gantry 20 through the holding metal fitting 54 having a U-shaped cross section, and the It is accumulated in an external chip storage tank (not shown) via 66.

As shown in FIG. 4, when the blade 42 of the chain saw enters the log M, the upper end surface 22b on the carry-out side of the gantry 20 is tilted forward. The cut end M1 of the log is tilted in the direction along C and the log is opened. Therefore, the cutting operation is easy.

When raising the chain saw 40 after the cutting operation, the chain saw is urged upward by the spring balancer 74.
Can be easily lifted.

[0029]

As described above, according to the first aspect, since the blade of the chain saw can be covered with the bag-shaped member, it is safe.
In addition, scattering of chips can be prevented. Further, by holding the wood with the bag-like member, displacement of the wood during cutting can be eliminated, and the target portion can be cut accurately.

According to the second aspect of the present invention, since the upper surface of the gantry is tilted forward, when the blade of the chain saw enters the timber, the cut end of the wood is tilted in the opening direction of the cut so as not to bite the blade. Therefore, the cutting operation is easy.

According to the third aspect of the present invention, since the urging device for urging the chain saw upward with respect to the load is provided, the chain saw can be easily moved up and down.

According to the fourth aspect of the present invention, since a duct for carrying out the wood chips is provided on the mount, the chips are not scattered.

According to the fifth aspect of the present invention, the chain saw can be fixed by the lock device for stopping the elevation, which is safe.

[Brief description of the drawings]

FIG. 1 is a perspective view showing the appearance of a simple wood cutting device according to the present embodiment.

FIG. 2 is a side view of the simple wood cutting device of the present embodiment.

FIG. 3 is a rear view of the simple wood cutting device according to the embodiment.

FIG. 4 is a rear view of the simple wood cutting device of the embodiment.

[Explanation of symbols]

 Reference Signs List 10 simple wood cutting device 20 gantry 30 transport roller 40 chain saw 50 holding cover 54 holding bracket 56 guide column 62 linear guide 70 support column 80 lock

Claims (4)

(57) [Claims] 1. A gantry on which wood is placed, an electric chain saw which is attached to the gantry so as to be able to move up and down, and which cuts the wood laid on the gantry; A sack-shaped member having a released bottom surface capable of covering the blade of the chain saw and holding down the wood , wherein the upper surface of the gantry is tilted forward with the carry-out side of the wood. Cutting device. Relative wherein weighting of said chain saw, characterized in that a biasing device which upwardly biases claim 1
Simple wood cutting equipment. 3. A process according to claim 1 or claim, characterized in that a duct for conveying the chips of wood on the frame
3. The simple wood cutting device according to 2. 4. A simple wood cutting apparatus according to any one of claims 1 to 3, characterized in that a locking device for stopping the lifting of the chain saw.