JPH09109068A - Log marking-off device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily mark a connecting line following the circular arc of log at the time of connecting two logs in an intersecting state by providing a rotary plate at a base fixed to either one of two logs, and providing a compass at the tip part of an arm, supported on the rotary plate, through a rod. SOLUTION: Logs Ma, Mb are disposed with a space, and a base 10 is fixed to one log Ma using a clamper 13. The upper face 22 of a rotary plate 20 is adjusted horizontally by levelness adjusting mechanism while looking at a level 27. In this state, screw adjusting mechanism 53 of a compass 50 is adjusted to adjust the tip of a marking-off leg 52 to a deepest point Q of the other log Mb and to adjust the tip of a copying leg 51 to the lower edge of one log Ma, thus setting the opening of the copying leg 51 and marking-off leg 52. The rotary plate 20 is then rotated to move and rotate an arm in an orthogonal direction to a rotation axis P of the rotary plate 20, and a rod 40 in a parallel direction to the rotation axis P, thus marking a connecting line S with the marking-off leg while making the copying leg 51 follow the curved surface of the log M.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention, in the construction of a log house using logs, etc., draws the connecting lines so that the connecting lines are formed following the arcs of the logs when connecting the logs. Regarding a log marking device.

[0002]

2. Description of the Related Art Conventionally, for example, in the construction of a log house, a log M and a log M are connected to each other as shown in FIGS. This connection, for example, as shown in FIG. 5, causes one log Ma to abut the end of the other log Mb. In this connection, for example, as shown in FIG.
The recess 1 into which the one log Ma fits is formed in the other log Mb. Reference numeral 2 is a hole formed in one log Ma, and 3 is a tenon projecting from the end of the other log Mb and fitted into the hole 2.

Further, as shown in FIG. 6, the logs M are crossed with each other. In this connection, for example, as shown in FIG. 8, one log Ma is formed with a concave portion 4 through which the other log Mb penetrates, and a longitudinal concave portion engaging with a stacked lower log Mc is formed. 5 is formed. In this way, similar recesses 4 and groove portions 5 are formed in each log M to be stacked, and the logs M are stacked so as to cross each other by penetrating and engaging the recess portions 4 and the groove portions 5. .

In this case, the connection lines S are made by marking the connection lines S one by one so that the connection lines S between the logs M are formed following the arcs of the logs M. In this ruled construction (marking with black) of the log assembly structure, the arcs of the log M must be matched, so the work is difficult, and a skilled carpenter repeatedly makes temporary assembly, rewrites the markings, and then grinds them. It was normal to do.

[0005]

By the way, there is a problem that the efficiency of the work is remarkably inferior because it is difficult for the marking work of the log group structure to require skill. In order to solve this, in the past, many methods have been used in which the curved surface of the log M is flattened and combined, but the cutting surface is exposed at the connection portion, so the appearance becomes poor. . That is, it was not possible to express the goodness of the building in the original log structure only by reducing the material feeling of the log structure, visual softness and natural simplicity.

The present invention has been made in view of the above problems. When connecting logs to each other, the connecting lines can be easily marked so that the connecting lines are formed following the arcs of the logs. It is therefore an object of the present invention to provide a log scoring device that can be easily operated by a skilled craftsman and can perform log scoring work.

[0007]

In order to achieve such an object, in a log marking device of the present invention, when connecting logs to each other, a connecting line on the outer periphery is formed following the arc of the log. In a log scoring device for scoring the connection line as described above, a base fixed to one of two logs arranged at intervals, a turntable provided rotatably with respect to the base, and the turntable An arm provided on the turntable having an axis in a direction orthogonal to the rotation axis of the turntable, and an axis parallel to the rotation axis of the turntable and movable in the direction. A rod rotatably provided around the tip of the arm, a follower leg rotatably attached to the rod and copying the surface of one of the logs, and a marking line on the surface of the other log. With a compass with a ruled leg We are trying to be.

If necessary, the base is provided with a clamper for holding the logs. In addition, if necessary, a top surface orthogonal to the axis of rotation is formed on the rotating disk, a leveling mechanism for adjusting the levelness of the top surface is provided, and a level for measuring the levelness of the top surface is provided. There is.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A log marking device according to an embodiment of the present invention will be described in detail below with reference to the accompanying drawings. As shown in FIGS. 1 and 2, in the log marking device according to the present embodiment, when connecting the logs M and M, the connecting line S on the outer periphery is formed following the arc of the log M. The connection line S is marked. As described above, the connection between the logs M and the logs M is performed, for example, as shown in FIGS. 5 and 7, by causing one log Ma to abut the end portion of the other log Mb. Alternatively, as shown in FIG. 6 and FIG.
The logs M to be stacked are crossed at right angles.

In the log marking apparatus according to the embodiment of the present invention, 10 is a base fixed to one of two logs M arranged at a predetermined interval. The base 10 has a horizontal bottom surface 11 that contacts the log M and a horizontal surface 12. The base 10 is provided with a clamper 13 that holds the log M while the bottom surface 11 is in contact with the log M. The clamper 13 includes a U-shaped frame 14 that encloses the log M, a screw shaft 15 that is screwed into one leg portion 14a of the frame 14 and that can move forward and backward with respect to the other leg portion 14b, The screw shaft 15 is provided with a gripping rod 16 for rotating the screw shaft 15 provided at a rear end portion thereof. Further, the log M is held between the holding plate 17 provided at the tip of the screw shaft 15 and the holding portion 18 provided at the end of the other leg 14b.

Reference numeral 20 is a turntable which is rotatably provided on the base 10 via a support base 21. This turntable 2
0 is formed in a cylindrical shape having an upper surface 22 orthogonal to the rotation axis P, and a disk-shaped support base 21 is provided via a bearing device 28.
Is bound to. Reference numeral 23 is a leveling mechanism for adjusting the levelness of the upper surface 22 of the turntable 20.
And a female screw portion 24 provided on the back surface of the base 10 and having an axis parallel to the rotation axis P, and a female screw portion 24 rotatably provided on the base 10.
And a rotary knob-type externally threaded portion 25 that is screwed to the three legs 26 arranged in an equiangular relationship (two of them are shown in the figure).
One is shown). On the upper surface 22 of the turntable 20, a level 27 for measuring the levelness of the upper surface 22 is provided.

Reference numeral 30 denotes an arm which has an axis in a direction orthogonal to the rotation axis P of the rotary disc 20 and is provided on the rotary disc 20 so as to be movable in the direction. A lower end edge in the longitudinal direction of the arm 30 is a slide rail 31 having a groove, and the slide rail 31 is slidably engaged with a well-known ball circulation type slider block 32 provided on the upper surface 22 of the rotary disc 20. Has been made. Reference numeral 33 is a stopper that prevents the arm 30 from coming off the slider block 32.

Reference numeral 40 denotes a rod which has an axis line in a direction parallel to the rotation axis P of the turntable 20 and is movable in that direction and rotatable about the axis line at the tip of the arm 30. This rod 40 is slidably and rotatably engaged with a well-known ball screw type ball screw block 41 provided at the tip of the arm 30. A stopper 42 is provided on the upper portion of the rod 40 to prevent the ball screw block 41 from coming off.

Reference numeral 50 denotes a compass provided below the rod 40 so as to be able to open the legs. The compass 50 includes a copying leg 51 with a sharp tip that imitates the surface of one of the logs M and a marking leg 5 that puts marking lines on the surface of the other log M.
2 is provided. Reference numeral 53 is a well-known screw adjusting mechanism that is installed between the copy leg 51 and the scribe line leg 52 to adjust the opening degree of the copy leg 51 and the scribe line leg 52, and 54 is a pencil for the scribe line attached to the scribe line leg 52. The compass 50 is attached to the rod 40 by a bolt 55 so that the copying leg 51 and the ruled leg 52 can be positioned upside down.

Therefore, when the ruled marking apparatus for the log M according to the embodiment of the present invention is used, the marking is performed as follows. Now, as shown in FIGS. 1 and 7, a description will be given of the case where the connection between the logs M and the logs M causes one log Ma to abut the end of the other log Mb. First,
One log Ma and the other log Mb are arranged with an appropriate interval, the other log Mb is arranged at a predetermined position with respect to the reference line X, and the deepest point where one log Ma enters the other log Mb. Q is defined by the distance D from the reference line X. In this state, the base 10 is fixed to one log Ma. In this case, the base 10 is placed on one of the logs Ma so as to be horizontal to some extent, the screw shaft 15 of the clamper 13 is gripped by the grip rod 16 and rotated, and the pressing plate 17 of the screw shaft 15 and the other leg are rotated. Holding portion 18 of portion 14b
Hold log M with and. At this time, since the base 10 can be attached to the log M only by holding the base 10 with the clamper 13, the operation is easily performed.

Next, while looking at the level 27, the male screw portion 25 of the leg portion 26 of the levelness adjusting mechanism 23 is rotated to rotate the support base 2
1 is moved up and down so that the upper surface 22 of the turntable 20 becomes horizontal. That is, the rotation axis P of the turntable 20 is made vertical,
The axis of the arm 30 orthogonal to the rotation axis P is made horizontal. In this state, the screw adjusting mechanism 53 of the compass 50 is adjusted so that the tip of the pencil 54 of the ruled leg 52 is aligned with the deepest point Q of the other log Mb, and the tip of the copying leg 51 is aligned with the lower edge of one log Ma. In addition, the opening degrees of the copy leg 51 and the ruled leg 52 are set.

When this setting is completed, the tip of the copy leg 51 is moved along the curved surface of one log Ma, and the tip of the ruled leg 52 marks the surface of the other log Mb. Thus, the connecting line S connecting the logs M and the logs M is marked on the other log Mb. In this case, the turntable 20 rotates with respect to the base 10, the arm 30 moves in the direction orthogonal to the rotation axis P of the turntable 20, the rod 40 moves in the direction parallel to the rotation axis P, and the rod 40 moves. Since the axis of rotation rotates about the axis, the tip of the copy leg 51 can easily be a log M.
The curved surface can be traced, and therefore, the tip of the scribe line leg 52, which moves together with the copy leg 51, easily follows, so that the scribe line can be easily written. After that, if the log M is cut as shown in FIG.
A recess 1 is formed. Then, when the logs M and the logs M are connected, the connection line S is formed following the arc of the logs M, so that the fitting of the recesses 1 is extremely good, and the joint portion has no gap, The appearance quality is improved.

Next, as shown in FIG. 3 and FIG. 8, a ruled line in the case where stacked logs M are crossed at right angles will be described. In advance, mount the compass 50 on the rod 4 so that the copying leg 51 and the marking leg 52 are upside down.
Attach it to 0. First, one log Ma and the other log Mb are arranged with an appropriate interval, one log Ma is arranged at a predetermined position with respect to the reference line X, and the other log Mb enters one log Ma. The deepest point Q is defined by the distance D from the reference line X. In this state, the base 10 is fixed to one log Ma. In this case, the base 10 is placed on one of the logs Ma so as to be horizontal to some extent, the screw shaft 15 of the clamper 13 is gripped by the grip rod 16 and rotated, and the pressing plate 17 of the screw shaft 15 and the other leg are rotated. The log M is held by the pressing portion 18 of the portion 14b. At this time, just by holding the base 10 with the clamper 13, the log M
Since it can be attached to, the operation is easy.

Next, while looking at the level 27, the male screw portion 25 of the leg portion 26 of the levelness adjusting mechanism 23 is rotated to rotate the support base 2
1 is moved up and down so that the upper surface 22 of the turntable 20 becomes horizontal. That is, the rotation axis P of the turntable 20 is made vertical,
The axis of the arm 30 orthogonal to the rotation axis P is made horizontal. In this state, the screw adjusting mechanism 53 of the compass 50 is adjusted so that the tip of the pencil 54 of the ruled leg 52 is aligned with the deepest point Q of one log Ma, and the tip of the copy leg 51 is aligned with the upper edge of the other log Mb. In addition, the opening degrees of the copy leg 51 and the ruled leg 52 are set.

When this setting is completed, the tip of the copying leg 51 is moved along the curved surface of the other log Mb, and the surface of one log Ma is marked by the tip of the ruled leg 52. As a result, the connecting line S connecting the logs M and the logs M is marked on one of the logs Ma. In this case, the turntable 20 rotates with respect to the base 10, the arm 30 moves in the direction orthogonal to the rotation axis P of the turntable 20, the rod 40 moves in the direction parallel to the rotation axis P, and the rod 40 moves. Since the axis of rotation rotates about the axis, the tip of the copy leg 51 can easily be a log M.
The curved surface can be traced, and therefore, the tip of the scribe line leg 52, which moves together with the copy leg 51, easily follows, so that the scribe line can be easily written. After that, if the log M is cut as shown in FIG.
Since the concave portion 4 is formed and the connecting line S is formed following the arc of the log M when the logs M and the log M are connected to each other, the fitting is extremely good and the appearance quality is improved.

Further, as shown in FIG. 4 and FIG. 8, when the above-mentioned recessed line portion 5 is formed, the base 1 is also similarly to the above.
0 is fixed to one log Ma, and the upper surface 22 of the turntable 20 is adjusted to be horizontal. In this state, the screw adjusting mechanism 53 of the compass 50 is adjusted so that the tip of the scribing leg 52 is attached to one log Ma. In accordance with the deepest point Q of Ma, the tip of the copying leg 51 is aligned with the upper edge of the other log Mb, and the copying leg 51 and the ruled leg 5
Set the opening of 2. Then, after this setting is completed, the tip of the copying leg 51 is moved along the curved surface of the other log Mb, and the tip of the ruled leg 52 is used to mark the surface (tree edge) of one log Ma. As a result, the connecting line S connecting the logs M and the logs M is marked on one of the logs Ma.

In the above-described embodiment, the ruled lines in the case where the logs M to be stacked are crossed at right angles are not limited to the above-described mode, but the vertical relationship between one log Ma and the other log Mb is reversed. Then, the concave portions 4 may be scored so that the concave portions face upward, and may be changed appropriately. Further, the connection mode of the log M is not limited to the one described above, and it is needless to say that various connections such as the connection of the inclined log Md shown in FIG. 5 can be applied. Furthermore, in the above-described embodiment, the log M for attaching the device to the log M so that the rotation axis P (the axis of the rod 40) is oriented vertically is used for marking.
However, when connecting the logs M horizontally or diagonally, the rotation axis P (rod 40
It suffices to mount the device so that the axis) of the device faces, and the setting direction of the device may be changed appropriately. In this case, for example, a so-called water thread may be stretched along the log M, and the device may be set by aligning the axis of the rod 40 with the water thread.

[0023]

As described above, according to the log marking device of the present invention, the base is fixed to one of the logs, and the compass is adjusted to set the opening of the copying leg and the marking leg. Move the tip of the copy leg along the curved surface of one of the logs from the specified position and use the tip of the ruler leg to mark the surface of the other log, and the connecting line connecting the log to the log will become a log. You can draw lines. Therefore, even an unskilled craftsman can easily operate, workability is greatly improved, and connection lines can be easily marked so that the connection lines are formed following the arc of a log. Even curved surfaces, curved surfaces, and uneven surfaces can be handled, so even an unskilled craftsman can perform accurate log marking work.

Further, when the base is provided with a clamper for holding logs, the installation of the apparatus becomes extremely easy and the workability can be further improved. In addition, when the upper surface orthogonal to the axis of rotation is formed on the turntable and a leveling mechanism that adjusts the levelness of the upper surface is provided, and a level that measures the levelness of the upper surface is provided, the positioning of each part is ensured. It is possible to make even more accurate connecting lines on a log.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a log marking device according to an embodiment of the present invention together with a mode of the marking.

FIG. 2 is a side sectional view showing a log marking device according to the embodiment of the present invention.

FIG. 3 is a perspective view showing a log marking device according to the embodiment of the present invention together with another mode of the marking.

FIG. 4 is a perspective view showing the log marking device according to the embodiment of the present invention together with other aspects of the marking.

FIG. 5 is a diagram showing a connection example of logs and logs.

FIG. 6 is a diagram showing another connection example of logs and logs.

FIG. 7 is an exploded perspective view showing an example of connecting logs and logs.

FIG. 8 is an exploded perspective view showing another connection example of logs and logs.

[Explanation of symbols]

 M log Ma One log Mb Other log S Connection line 1 Recess 2 Hole 3 Mortise 4 Recess 5 Recess 10 Base 13 Clamper 20 Turntable P Rotating shaft 21 Support 22 Upper surface 23 Leveling mechanism 27 Leveler 30 Arm 31 Slide rail 32 Slider block 40 Rod 41 Ball screw block 50 Compass 51 Copying leg 52 Scribe leg 53 Screw adjusting mechanism

Claims (3)

[Claims] 1. A log scoring device for scoring connecting lines so that the connecting lines on the outer periphery are formed following the arcs of the logs when connecting the logs to each other.
Base fixed to any one of the two logs, a turntable provided rotatably with respect to the base, and a turntable having an axis in a direction orthogonal to the rotation axis of the turntable and movable in that direction. An arm provided on the arm, a rod having an axis line in a direction parallel to the rotation axis of the turntable and movable in the direction, and rotatable about the axis line, and a rod provided at the tip of the arm and opened on the rod. A log scribing device, comprising a copying leg which is provided so as to be capable of legging and imitates the surface of one of the logs, and a compass having a scribing leg for marking lines on the surface of the other log. 2. The log marking device according to claim 1, wherein the base is provided with a clamper that holds the log. 3. An upper surface orthogonal to the axis of rotation is formed on the rotating disk, and a leveling mechanism for adjusting the levelness of the upper surface is provided, and a level for measuring the levelness of the upper surface is provided. The log marking device according to claim 1 or 2.