JPH07124902A - Carriage - Google Patents

Abstract

PURPOSE:To rotate, position, and lumber a log in a full automatic operation by a method wherein a log is again held and positioned between a pair of rotating clampers that can move into/out of contact with each log and grippers provided between the clampers. CONSTITUTION:Rotating clampers 2, 3 fixed on a bogie 1 can move in the direction of its center axis. A log 7 is clamped between the clampers 2, 3. Namely, the log 7 is aligned vertically and longitudinally by a charger and clamped by clamping plates 26, 36 of the clampers 2, 3 to be rotated. At the time of positioning, the log 7 is gripped by claws 83, 85 attached to upper and lower arms 82, 84 of a pair of grippers 8, 8 which can move between the clampers 2, 3 in the direction of its center axis. After the clampers 2, 3 are retracted, the log 7 is positioned as required by expanding/shrinking the arms 82, 84 crosswise. Therefore, the log 7 can be rotated by the clampers and again held and positioned by the grippers in a full automatic operation.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a feeding vehicle capable of automatically rotating and starting a raw wood such as a log when lumbering the raw wood.

[0002]

2. Description of the Related Art When performing lumber cutting from raw wood, the raw wood mounted on a feeding vehicle is clamped from the top and bottom, and a predetermined number of plate materials are ground from one side along the central axis of the raw wood. , Rotate the log 90 degrees or 180 degrees, re-clamp it, grind a specified number of pieces from the other side, and then
It was necessary to repeat the work of rotating 90 degrees, re-clamping and cutting out at least 4 times, and it was necessary to perform positioning every time. Although a material feeding vehicle equipped with a device for rotating a log is also provided, the final positioning clamp has to be done manually and is inefficient. In particular, if the log is heavy, it is difficult to handle and there are many dangers. Moreover, it was difficult to standardize and automate a series of operations, and unmanned driving was impossible.

In order to solve such a problem, the applicant of the present application has previously filed Japanese Patent Application Nos. 4-176985 and 5-0681.
No. 40 discloses a feeding vehicle capable of automatically performing a series of operations such as rotation and stepping of raw wood, unmanned operation, and efficient timber lumbering.

That is, the material feeding vehicle is provided with a pair of clamp units, which are arranged to face each other in the longitudinal direction with the mounted raw wood sandwiched therebetween, and which can be brought into contact with and separated from the mouth of the raw wood. In each case, a clamp for holding a log that can move between an operating position where the log is held in contact with the log to hold the log, and a retracted position where the log can be released, and a log is held in contact with the log when the log is held. And an evacuation position capable of releasing the log and provided with a rotary clamp rotatable about a central axis, and further, the both clamps are relatively perpendicular to the central axis. It was characterized in that it was movable in any direction.

According to the material feeding vehicle equipped with such a clamp device, the mounting, rotation and stepping of the raw wood can be completely automated. However, in this material feeding vehicle, there is a problem in that the drive mechanism of the rotary stepping clamp is complicated and there are many restrictions in design.

[0006]

SUMMARY OF THE INVENTION The present invention relates to an improvement of the material feeding vehicle disclosed in Japanese Patent Application No. 4-176985 and Japanese Patent Application No. 5-068140, and its object is to provide a mechanism. An object of the present invention is to provide a feeding vehicle that is relatively simple, has few design restrictions, and is easy to manufacture.

[0007]

The above objective is accomplished by the use of a glazing device in place of the log holding clamp used in the prior art. More specifically, the above-mentioned object of the present invention is to be provided in a feeding vehicle for a sawmill, facing each other in the longitudinal direction with the mounted raw wood sandwiched therebetween, in contact with the mouth of the raw wood. And a revolving movable between an operating position capable of holding and a retractable position releasable, and a rotating clamp device rotatable around its central axis, and close to the central axis of the rotating clamp device. ,
It is provided in two places in pairs so as to face each other with the log placed between the clamp devices for rotation, sandwiching the log and advancing and retreating towards each other, holding the log by abutting the sides of the log. At least two pairs of grazing devices for stepping, which have a claw that can be reciprocated between an operative position that can be obtained and a retracted position that can be released, and that has a pawl that can be moved in a direction perpendicular to the central axis of the rotating clamp device. It is achieved by providing and.

[0008] The above-mentioned object is further provided in a feeding vehicle for a lumber machine so as to face each other in the longitudinal direction with a mounted raw wood sandwiched therebetween, and the raw wood can be held by abutting the mouth of each raw wood. Reciprocating movable between an operating position and a releasable retractable position, rotatable about its central axis, and movable in a direction orthogonal to the central axis, for rotation and walking. A pair is formed at two positions close to the central axis of the clamp device and the clamp device for rotation and stepping, and at positions opposite to each other with a log placed between the clamp device for rotation and stepping, respectively. And a grazing device having a claw capable of reciprocating between an operating position in which the logs move forward and backward toward each other and can abut the side faces of the logs to hold the logs, and a retracted position in which the logs can be released. It is achieved by providing.

[0009]

With the above-mentioned structure, the clamp device for holding the log is only a single rotary clamp device, and the structure of the clamp device is extremely simplified. The rotation of the raw wood is performed by a rotary clamp device, and for holding and starting the raw wood when starting a walk, a glazing device can be used instead of the clamp device for holding the raw wood of the prior invention. Since this glazing device is provided at a position completely different from that of the clamp device, the design of each part is extremely easy.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described in detail below with reference to the drawings. FIG. 1 is a front view showing an embodiment of the material feeding vehicle according to the present invention, and FIG. 2 is an explanatory view showing the configuration of the material feeding vehicle as seen from the direction AA in FIG.

In the figure, 1 is a carriage, 2 is a rotation clamp device fixed on the carriage, and 3 is provided on the carriage coaxial with the rotation clamp device 2 and movable in the direction of its central axis. Clamp device for rotation 4 is a clamp device for rotation 3
A motor for moving the screw, 5 its feed screw, 6 an air cylinder, 7 a log supported by the air cylinder 6,
Reference numerals 8 and 8 are a glazing device, and 9 is a band saw. The position of the movable rotating clamp device 3 is appropriately set by using the motor 4 and the feed screw 5 according to the length of the raw wood 7, and when performing lumbering, the movable clamp device 3 can be moved with the fixed clamp device 2. A log 7 is sandwiched between the clamp devices 3.

The structures of the clamp device 2 on the fixed side and the movable clamp device 3 are the same, except that the latter is movable in the direction of its central axis by the motor 4 and the feed screw 5, and therefore the former is used here. Only the structure of will be explained.

The clamp device 2 has a bearing 22 supported by an abutment 21, and a hollow cylindrical main shaft 23 slidably supported by the bearing 22 along its central axis and rotatably supported around the central axis. A motor box 24 provided at one end of the main shaft 23, a rotary shaft 25 rotatably provided inside the main shaft 23, a clamp plate 26 provided at one end of the rotary shaft 25, a frame 27, and the frame 27 are attached. An air cylinder 28 for reciprocating the main shaft 23 with a motor box 24 in the direction of its central axis, a motor box 24
A brake motor 29 provided with an encoder for rotating the rotary shaft 25 and a control device (not shown), a power source and other auxiliary devices.

The air cylinder 28 is attached to a frame 27 fixed to the abutment 21, and the main shaft 23 can be reciprocated in the left-right direction in FIG. 1 via a motor box 24. A rotary shaft 25 is rotatably provided inside the main shaft 23, and the rotary shaft 25 is rotated by a brake motor 29 whose operation is controlled by a controller (not shown). The brake motor 29 is provided with an encoder (not shown), and the measured value is fed back to a controller (not shown).
A clamp plate 26 is attached to the tip of the rotary shaft 25, and the log 7 is clamped by the clamp plate 26.

The operation of the feeding vehicle according to the present invention having the above-described structure will be described. First, the log 7 is preset in a separately provided charger to center the top, bottom, left and right, and then the log 7 is charged into the charger. By means of the clamp plates 26 and 36 of the pair of rotating clamping devices 2 and 3.
Between the two, and actuating the air cylinder 28 and the air cylinder of the rotating clamp device 3 (not shown),
The log 7 is clamped by the clamp plates 26 and 36. In this state, the log 7 can be rotated around the central axes of the rotating clamp devices 2 and 3.

Thus, when starting a walk from this state, a pair of glazing devices 8 are used.
The glazing devices 8 and 8 are configured so that they can be moved to appropriate positions on the trolley 1 along the central axis direction of the rotation clamp devices 2 and 3, and along the columns 81 and 81, respectively. The upper arm 82 and the lower arm 84 are attached to the upper arm 82 and the lower arm 84, which are held so as to be able to move up and down independently of each other and are movable back and forth along the center axis of the arm. Nail 83
And 85 and an arm driving device (not shown).

Thus, the arms 82 and 84 of these glazing devices 8 and 8 are normally retracted to the position where the log 7 is opened, that is, the former is at the maximum movement limit position and the latter is at the minimum movement limit position. However, when stepping out, as shown in FIG. 2, the upper arm 82 and the lower arm 84 respectively have the tips of the claws 83 and 85 held by the upper arm 82 and the lower arm 84 hit the log 7, and a predetermined force is applied. Then, the log 7 can be moved to a position where it can be held by scissors.

These upper arm 82 and lower arm 8
4 are configured so that they can be controlled and moved independently of each other, and the log 7 can be moved without changing the position of the log 7 held between the rotating clamping devices 2 and 3.
It can be grasped between 3,85. Therefore,
It is held by the rotation clamp devices 2 and 3, and the plate log 7 is held.
When the clamp plates 26 and 36 of the rotation clamp devices 2 and 3 are retracted after being held by the scribing devices 8 and 8, the log 7 is held only by the scribing devices 8 and 8. Arm 8 of the glazing device 8
A desired step can be performed by expanding and contracting 2, 84 in the front-back direction.

When the walking is finished,
Alternatively, again with the raw wood 7 held by the rotating clamp devices 2 and 3, the feeding vehicle is made to travel and cut by the band saw 9, and then, if necessary, the raw wood 7 is rotated by the rotating clamp devices 2 and 3. It is rotated about the central axis by 90 ° or 180 °, and again, as described above, the raw wood 7 is replaced by the grazing devices 8 to carry out the desired stepping and lumbering.

Since the present invention is constructed as described above, according to the present invention, the mounting, stepping, rotation, and lumber of the material can be performed fully automatically. In the above embodiment, only the rotation of the log 7 is performed by the rotation clamp devices 2 and 3, and the scraping device 8 for changing the holding of the log 7 and stepping on it.
It was carried out by 8 but the clamp device 2 for rotation,
It is also possible to configure 3 so as to be able to move at a right angle to the traveling direction of the material feeding vehicle, and thereby to rotate the log 7 and start the step.

In this case, the glazing devices 8, 8 are the raw wood 7
It is used for changing the grip when re-clamping the rotation clamp devices 2 and 3. In this case, the arms of the glazing devices 8 and 8 may be configured to be able to move forward and backward, but may be those that can only move up and down.

[0022]

Since the present invention is constructed as described above, according to the present invention, it is not necessary to manually re-clamp the log 7, and the log can be automatically rotated, stepped on, and the like. Since a series of movements can be patterned, unmanned operation can be performed, wood cutting can be performed efficiently, and the glazing device is provided separately from the rotating clamp device. It is easy to manufacture and control, and therefore the material delivery vehicle can be provided at a relatively low cost.

In the above description, the wood-cutting lumber from the raw wood is mainly described, but the lumber of the present invention can also be used for lumber such as timber and plate. Also,
The configuration of the present invention is not limited to the above embodiment,
Within the scope of the object of the present invention, all the modified embodiments which can be easily conceived by a person skilled in the art from the above description are included in the above description.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of a material feeding vehicle according to the present invention.

FIG. 2 is an explanatory diagram showing a configuration of a material feeding vehicle as seen from a direction AA in FIG.

[Explanation of symbols]

 1 Cart 2, 3 Rotation Clamping Device 21 Abutment 22 Bearing 23 Spindle 24 Motor Box 25 Rotating Axis 26 Clamp Plate 27 Frame 28 Air Cylinder 29 Brake Motor 4 Motor 5 Feed Screw 6 Air Cylinder 7 Log 8 Grazing Device 81 Column 82 Upper arm 83, 85 Claw 84 Lower arm

─────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] November 17, 1993

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] Full text

[Correction method] Change

[Correction content]

[Document name] Statement

[Title of Invention] Feeding vehicle

[Claims]

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a feeding vehicle capable of automatically rotating and starting a raw wood such as a log when lumbering the raw wood.

[0002]

2. Description of the Related Art When performing lumber cutting from raw wood, the raw wood mounted on a feeding vehicle is clamped from above and below by a well-known glazing device or other clamping device to carry out a well-known step. Drive the car back and forth, cut out a specified material from one side of the log, then once release the clamp of the log, rotate the log 90 degrees or 180 degrees around its center axis, and re-clamp it. It is necessary to repeat at least 4 times to grind a specified material from the other side, release the clamp again by the same procedure, rotate the raw wood 90 degrees, re-clamp again, and grind the material. There is.

That is, when a predetermined number of plate materials are ground from one side of the raw wood, it is necessary to position the raw wood each time. Although a material feeding vehicle equipped with a device for rotating a log is also provided, the clamp for final positioning has to rely on manpower and is inefficient. In particular, if the log was large and heavy, it was difficult to handle and there were many dangers. Moreover, since the shape of the log is not constant, it is difficult to standardize and automate a series of operations, and unmanned operation is impossible.

In order to solve such a problem, the inventors of the present invention previously disclosed Japanese Patent Application No. 4-176985 and Japanese Patent Application No. 5-0681.
No. 40 discloses a feeding vehicle capable of automatically performing a series of operations such as rotation and stepping of raw wood, unmanned operation, and efficient timber lumbering.

That is, the material feeding vehicle is provided with a pair of clamp units, which are provided to face each other in the longitudinal direction with the raw wood to be mounted therebetween, and which can be brought into contact with and separated from the mouth of the raw wood. Each of them has a clamp device for holding a log that can move between an operating position where the log comes into contact with the log and hold the log, and a retracted position where the log can be released. And an evacuation position capable of releasing the log, and a rotary clamp device rotatable about a central axis is provided. It is characterized in that it can move in a direction perpendicular to.

According to the material feeding vehicle provided with such a clamp device, the mounting, rotation and stepping of the raw wood can be completely automated. However, in this material feeding vehicle, there is a problem that the driving mechanism of the rotary stepping clamp is complicated and there are many restrictions in design.

[0007]

SUMMARY OF THE INVENTION The present invention relates to an improvement of the material feeding vehicle disclosed in Japanese Patent Application No. 4-176985 and Japanese Patent Application No. 5-068140, and its object is to provide a mechanism. An object of the present invention is to provide a feeding vehicle that is relatively simple, has few design restrictions, and is easy to manufacture.

[0008]

The above-mentioned object is to separately provide a clamp device for holding a log and a rotary clamp device, which constitute the above-mentioned clamp unit used in the above-mentioned prior art, separately, and This is achieved by using a clamp device that holds the raw wood at its side instead of the clamp device that holds the raw wood at the wood mouth.

More specifically, the above-mentioned object of the present invention is
In the feeding vehicle for the sawmill, there are provided an operating position that is provided so as to face the mouth of the raw wood that is mounted, and that can hold the raw wood by abutting the mouth, and an evacuation position that can separate the raw wood and release the raw wood. A rotation clamp device having a rotation shaft that is reciprocally movable between the rotation clamp and is rotatably supported around its center axis, and a pair so that the raw wood mounted between the rotation clamp devices can be sandwiched from both the upper and lower sides thereof. Provided so as to reciprocate between an operating position in which they move forward and backward toward each other and can hold the log by abutting the sides of the log, and a retracted position in which they can be separated from each other to release the log, and , Having a holding arm movably supported in a direction perpendicular to the central axis of the rotating clamp device, and sandwiching the clamping arm arranged at two positions along the central axis of the rotating clamp device at an appropriate distance from each other. Clamping device for stepping It is achieved by providing a.

Still further, the above-mentioned object of the present invention is to provide an operating position which is provided in a feeding vehicle for a sawmill so as to oppose the mouth of raw wood to be mounted and which can abut the raw wood and hold the raw wood. , A rotating shaft supported so as to be able to reciprocate between the retracted positions where they can be separated from each other and release the raw wood, rotatable about the central axis thereof, and movable in a direction orthogonal to the central axis. The rotation / stepping clamp device having and the pair of raw logs attached between the rotation / stepping clamp device are provided so as to be able to be sandwiched from the upper and lower sides thereof, respectively.
A pair of upper and lower logs that are reciprocally supported between an operating position in which they move toward and away from each other and can hold the logs by abutting the sides of the logs, and a retracted position in which they can be separated from each other to release the logs. This is achieved by providing a sandwiching clamp device which has sandwiching arms and is arranged at two places along the central axis of the rotation / stepping clamp device with a proper distance therebetween.

[0011]

With the above-mentioned structure, the clamp device for holding the raw wood at the mouth end thereof is only a single rotary clamp device, so that the structure is extremely simple.
The rotation of the log is performed by a rotary clamp device, and in order to change the log of the log when stepping out, a clamp device for holding the log on the side can be used instead of the clamp device for holding log of the prior invention. However, since this clamp device is provided at a completely different position from the rotary clamp device, the design of any part is extremely easy. In the device according to the present invention, the stepping can be performed by a rotating clamp device that holds the raw wood at its wood mouth, or by a clamp device that holds the raw wood by the side surface.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described in detail below with reference to the drawings. FIG. 1 is a front view showing an embodiment of the material feeding vehicle according to the present invention, and FIG. 2 is an explanatory view showing the configuration of the material feeding vehicle as seen from the direction AA in FIG.

In the figure, 1 is a carriage, 2 is a rotation clamp device fixed on the carriage, and 3 is provided on the carriage coaxial with the rotation clamp device 2 and movable in the direction of its central axis. Clamp device for rotation 4 is a clamp device for rotation 3
A motor for moving the screw, 5 its feed screw, 6 an air cylinder, 7 a log supported by the air cylinder 6,
Reference numerals 8 and 8 denote clamp devices for holding and walking the raw wood 7 on its side surface, and 9 denotes a band saw.

The position of the movable rotating clamp device 3 is appropriately set by using the motor 4 and the feed screw 5 according to the length of the raw wood 7, and when performing lumbering, the fixed rotating clamp device 3 is used. A log 7 is sandwiched between the movable clamp 2 and the movable clamp device 3. Fixed side rotation clamp device 2 and movable rotation clamp device 3
Since the latter is the same as the latter except that the latter can be moved in the central axis direction by the motor 4 and the feed screw 5, only the former will be described here.

The rotating clamp device 2 includes a bearing 22 supported by an abutment 21, and a hollow cylindrical main shaft slidably supported by the bearing 22 along its central axis and rotatably supported around the central axis. 23, a motor box 24 provided at one end of the main shaft 23, a rotary shaft 25 rotatably provided inside the main shaft 23, a clamp plate 26 provided at one end of the rotary shaft 25, a frame 27 and its frame 2
7, an air cylinder 28 for reciprocating the main shaft 23 with a motor box 24 in the direction of its central axis, a brake motor 29 provided inside the motor box 24 with an encoder for rotating a rotary shaft 25, and not shown. It consists of a control unit, power source, and other auxiliary devices.

The air cylinder 28 is attached to a frame 27 fixed to the abutment 21, and the main shaft 23 can be reciprocated in the left and right directions in FIG. 1 via a motor box 24. A rotary shaft 25 is rotatably provided inside the main shaft 23, and the rotary shaft 25 is rotated by a brake motor 29 with a reduction gear whose operation is controlled by a controller (not shown). The brake motor 29 is provided with an encoder (not shown), and the measured value is fed back to a controller (not shown). A clamp plate 26 is attached to the tip of the rotary shaft 25, and the log 7 is clamped by the clamp plate 26.

The operation of the feeding vehicle according to the present invention having the above-described structure will be described. First, the log 7 is preset in a separately provided charger to perform centering in the vertical and horizontal directions, and then the log 7 is charged into the charger. By means of the clamp plates 26 and 36 of the pair of rotating clamping devices 2 and 3.
Between the two, and actuating the air cylinder 28 and the air cylinder of the rotating clamp device 3 (not shown),
The log 7 is clamped by the clamp plates 26 and 36. In this state, the log 7 can be rotated around the central axes of the rotating clamp devices 2 and 3.

When stepping out from this state, the clamping / stepping clamp devices 8, 8 that can clamp the raw wood between the upper and lower side surfaces thereof are used. In the present embodiment, the clamp devices 8 and 8 are each provided with a claw 8 at the tip.
Upper clamping arm 82 and lower clamping arm 84 provided with 3 and 85
It is a so-called grazing type clamping device.

Clamping device 8 for holding and stepping these,
8 is configured so that it can be moved to an appropriate position on the carriage 1 along the central axis direction of the rotation clamp devices 2 and 3, and can be moved up and down independently of each other along the columns 81 and 81. In addition, the upper holding arm 82, the lower holding arm 84, and the holding arm driving device (not shown), which are held so as to be movable back and forth in the front-rear direction along their own central axes.

The clamping arms 82 and 84 of these clamp devices 8, 8 are normally retracted to the position where the log 7 is opened, that is, the former is at the maximum movement limit position and the latter is at the minimum movement limit position. However, when stepping out, as shown in FIG. 2, the upper and lower clamping arms 82 and 84 respectively have the tips of the claws 83 and 85 held by the upper and lower clamping arms 82 and 85 contact the log 7, and a predetermined distance. With the force of, the log 7 can be moved to a position where it can be scissored.

These upper and lower clamping arms 82 and 8
4 are configured so that they can be controlled and moved independently of each other, and the log 7 can be moved without changing the position of the log 7 held between the rotating clamping devices 2 and 3.
It can be grasped between 3,85.

Therefore, when the plate raw wood 7 held by the rotating clamp devices 2 and 3 is held by the clamp devices 8 and 8 and the clamp plates 26 and 36 of the rotating clamp devices 2 and 3 are retracted, Since 7 is held only by the clamp devices 8 and 8, the desired walking can be performed by expanding and contracting the holding arms 82 and 84 of the clamp devices 8 and 8 in the front-rear direction.

When the walking is completed,
Alternatively, again with the raw wood 7 held by the rotating clamp devices 2 and 3, the feeding vehicle is made to travel and cut by the band saw 9, and then, if necessary, the raw wood 7 is rotated by the rotating clamp devices 2 and 3. It is rotated about the central axis by 90 ° or 180 °, and again, as described above, the raw wood 7 is held by the clamp devices 8 to carry out the desired stepping and lumbering.

Since the present invention is constructed as described above, according to the present invention, the mounting, stepping, rotation, and lumber of the material can be performed fully automatically. In the above embodiment, only the rotation of the log 7 is performed by the rotation clamp devices 2 and 3, and the side faces of the log 7 are clamped and the stepping is performed by the clamp device 8.
It was carried out by 8 but the clamp device 2 for rotation,
It is also recommended that the rotary shaft 25 of No. 3 be configured to be movable at a right angle to the traveling direction of the material feeding vehicle, so that the log 7 can be started.

In this case, the clamp device for holding the opening of the log 7 is a rotating / stepping clamp device, and the clamp device for gripping the side surface of the log 7 is a simple clamping device. That is, the clamping device for clamping is used for re-holding when the raw wood 7 is re-clamped on the rotating / stepping clamping device. In this case, the sandwiching arms of the sandwiching clamp device may be able to move forward and backward along their central axes, but they may only be able to move up and down.

[0026]

Since the present invention is constructed as described above, according to the present invention, it is not necessary to manually re-clamp the log 7, and the log can be automatically rotated, stepped on, and the like. Since a series of movements can be patterned, unattended operation is possible, wood cutting can be performed efficiently, and the clamping device that clamps the raw wood between its upper and lower sides is different from the rotating clamping device. Since it is provided, it is easy to design, manufacture, and control, and therefore, the feeding vehicle can be provided at a relatively low cost.

In the above description, the wood-cutting lumber from the raw wood is mainly described, but the lumber of the present invention can also be used for lumber such as timber and plate. Also,
The configuration of the present invention is not limited to the above embodiment,
For example, the clamp device that clamps the log on its side surface may be any device as long as it is provided differently from the clamp device for rotation and that the log can be held by a part other than the wood mouth. The design of the rotating clamp device and other components can be freely modified within the scope of the object of the present invention, and the present invention includes all the modified embodiments. .

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of a material feeding vehicle according to the present invention.

FIG. 2 is an explanatory diagram showing a configuration of a material feeding vehicle as seen from a direction AA in FIG.

[Explanation of Codes] 1 Car 2, 3 Rotation Clamping Device 21 Abutment 22 Bearing 23 Main Spindle 24 Motor Box 25 Rotating Shaft 26 Clamp Plate 27 Frame 28 Air Cylinder 29 Brake Motor 4 Motor 5 Feed Screw 6 Air Cylinder 7 Log 8・ Clamping device for stepping 81 Column 82 Upper clamping arm 83, 85 Claw 84 Lower clamping arm

Claims (2)

[Claims] 1. An operating position in which the raw wood (7) to be mounted is sandwiched between them so as to face each other in the longitudinal direction thereof, and the raw wood (7) can be held by being brought into contact with the mouth of the raw wood (7), respectively. Clamping device (2, 3), which can reciprocate with respect to a retractable position and is rotatable about its central axis.
And the rotation clamp devices (2, 3) are respectively provided at two positions on the carriage near the central axis of the rotation clamp devices (2, 3).
3) are provided in a pair so as to face each other with the log (7) attached between them, and move toward and away from each other toward the log (7), and abut the side surface of the log (7) to contact the log ( 7) Reciprocable between an operating position capable of gripping and a retracted position capable of releasing, and a rotating clamp device (2, 3).
At least two pairs of stepping glazing devices (8, 85) having pawls (83, 85) movable in a direction perpendicular to the central axis of
8) and a delivery vehicle. 2. An operating position in which the raw wood (7) to be mounted is sandwiched between them so as to be opposed to each other in the longitudinal direction, and the raw wood (7) is held in contact with the mouth of the raw wood (7), respectively, and released. A rotation and stepping clamp device that is reciprocally movable to and from the retracted position that is obtained and that is rotatable about its central axis and that is movable in a direction orthogonal to the central axis. Proximity to the central axis of the stepping clamp device,
Pairs are provided at two positions opposite to each other with a log (7) attached between a clamp device for rotation and a stepping device, respectively, and move forward and backward toward the log (7). At least two pairs of glazing devices having a claw capable of reciprocating between an operating position for holding the log (7) in contact with the side surface of (7) and a retractable position where the log can be released. A material delivery vehicle.