WO2000040813A1

WO2000040813A1 - Timber connecting method and tenon fixing device used for the method

Info

Publication number: WO2000040813A1
Application number: PCT/JP1999/007000
Authority: WO
Inventors: Mitsuteru Saito
Original assignee: Mitsuteru Saito
Priority date: 1998-12-29
Filing date: 1999-12-13
Publication date: 2000-07-13
Also published as: AU1797600A; JP3048562B1; JP2000199272A

Abstract

A timber connecting method in which a tenon (16) of a second timber (15) is fitted into a mortice (14) of a first timber (13) and a tenon fixing device used for the method, the tenon fixing device (10) comprising a fixing cylindrical body (11) having, at its center part, a thick wall part (20) smaller in thickness than the tenon (16) and capable of projecting in radial outward direction and an outer notch (21) formed on the outside half opposed to the thick wall part (20) and longer than the thickness of the tenon (16) and a pin (12), wherein, when the tenon fixing device (10) is used, with the tenon (16) installed in the mortice (14), first and second through holes (17 to 19) passing the first timber (13) and tenon (16) therethrough are formed, the fixing cylindrical body (11) is installed in the through holes (17 to 19), the pin (12) is installed into the fixing cylindrical body (11), the thick wall part (20) is projected in the tenon fitting direction so as to pull the second timber (15) to the first timber (13) for securely fixing the first and second timbers (13) and (15) to each other.

Description

Akira Tsumugi

Wood joining method and tenon fixing device used for this

The present invention relates to a method for joining wood, in which an end of one piece of wood is connected to an intermediate portion of the other piece of wood in a substantially orthogonal state, and a tenon fixing device used for the method. More specifically, the present invention relates to a method for joining wood to improve seismic resistance by easily fixing a bayonet used in a combination of a tenon and a tenon of wood, and a tenon fixing device used for the same.

"Background technology"

Wooden buildings are widely used in our lives because they are lightweight, easy to process and construct. In the construction of buildings, various methods have been devised for the method of joining timber to each other.

Conventionally, for example, when installing a wooden pillar on a wooden base fixed on a foundation, the lower end of the pillar is processed to form a tenon with a rectangular cross section, and a tenon is formed in the base. Then, the pillar was connected to the base with the tenon inserted in the tenon. At this time, in order to improve the seismic resistance of the joint between the column and the base, the first and second square holes of the same shape with a rectangular cross section are respectively provided on the tenon formed on the column and the base on which it is mounted. It is provided. The second square hole formed in the base was formed at a position about 2.4 to 3 mm lower than the first square hole formed in the tenon of the column. Then, the mortise, which has been machined into a square cross-section, such as wrench and force, is driven into the first and second square holes to move the tenon in the tenon insertion direction, that is, downward, and the base and the pillar are moved. It was intended to be fixed firmly.

However, in the conventional method of joining wood, the first and second mortises formed at the end of the pillar and the mortise formed to connect to the tenon are formed on the base. Although it is necessary to pre-process the square holes, it is necessary to form the first and second square holes accurately at predetermined positions on the tenon and the base, respectively. If the position of the square hole is not at the proper position, the base and the column cannot be connected. was there.

In addition, since the first and second square holes are processed using a chisel after drilling holes with a drill or the like, there is a problem that a skilled carpenter is required and it takes time.

The present invention has been made in view of such circumstances, and an object of the present invention is to provide a method for joining wood, which has good dimensional accuracy and can be constructed in a short time, and a tenon fixing device used for the method.

"Disclosure of the invention"

A method of joining wood according to the present invention, which meets the above object, is a method of joining wood by fitting a tenon formed at an end of a second wood into a mortise of a first wood.

In a state where the tenon of the second wood is fitted into the tenon of the first wood, first and second through holes having a circular cross section penetrating the first wood and the tenon are respectively formed. A thick portion which is smaller than the thickness of the tenon (that is, the length of the second through hole) and can protrude outward in the radial direction; A fixing cylinder having an outer surface notch longer than the thickness at the center is prepared, the thick portion of the fixing cylinder is oriented in a tenon insertion direction, and the thick portion is formed into the second through hole. A second step of mounting the fixing cylinder by passing through the first and second through holes so as to be positioned inside; and a cross-section in which the fixing cylinder is closely fitted to the fixing cylinder. Inserting a circular pin, extruding the thick portion radially outward of the fixing cylinder, A third step of projecting the thick portion in the tenon insertion direction, drawing the second wood toward the first wood, and connecting the first and second woods.

Here, the mortise of the first piece of wood may penetrate the first piece of wood, but may not. The depth of the tenon of the notch on the outer surface in the tenon insertion direction should be such that the thickness of the main body of the fixing cylinder is subtracted from the thick part, that is, when the pin is inserted into the fixing cylinder, the thickness of the fixing cylinder is It protrudes from the body or is slightly deeper than this height. The cutout on the outer surface may partially penetrate the cylindrical wall of the fixing cylinder.

In addition, the tenon fixing device according to the present invention, which meets the above-mentioned object, comprises a tenon provided with an end of a second piece of wood in a tenon of a first piece of wood. Into the first and second through-holes having circular cross sections formed by passing through, and drawing the second wood toward the first wood, thereby fixing the first and second woods. A tenon fixing device, comprising: a thick portion having a length shorter than the thickness of the tenon and protruding radially outward; and an outer half formed opposite to the thick portion and longer than the thickness of the tenon. An outer surface notch provided at a central portion, a fixing cylinder having substantially the same length as the width of the first wood, and being tightly fitted into the first and second through holes; A pin that fits closely into the fixing cylinder and pushes the thick portion outward.

In the method for joining wood according to the present invention and the tenon fixing device used for the same, after the tenon formed on the second wood is inserted into the mortise formed on the first wood, the first and second mortises are fixed. Since the through holes are formed at the same time, it is possible to eliminate the displacement of the first and second through holes. Also, since the cross-sections of the first and second through holes are circular, for example, using a rotary blade tool such as a drill or a drill, The first and second through holes can be processed, and the processing time can be reduced. In addition, since the fixing cylinder has a thick part inside, the thick part protrudes by inserting a pin into the fixing cylinder, and the tenon of the second wood is attached to the first wood. The first and second timbers can be easily brought into close contact with each other by pulling in the direction of the tenon insertion of the mortise. In this case, since the outer side notch is provided on the side wall of the fixing cylinder on the side facing the thick part, half of the second through hole of the drawn second wood falls. However, the inserted fixing cylinder does not obstruct the tenon.

Here, it is preferable to provide a linear projection parallel to the axial direction of the fixing cylinder on the outer periphery of the fixing cylinder. As a result, when the fixing cylinder is pushed into the first and second through holes, the fixing cylinder becomes difficult to rotate, thereby holding the thick portion at a predetermined angular position. Thus, a fixing cylinder can be inserted.

Further, in the tenon fixing device of the present invention, a cross-sectional shape of the outer surface of the outer surface notch of the fixing cylindrical body is an arc equal to a radius of the second through-hole, and a cross-section of the inner surface of the thick portion. The shape is a circular arc equal to the radius of the pin, and when the pin is inserted, the upper half of the second through hole abuts against the outer surface of the fixing cylinder, and The inner surface preferably contacts the pin. By doing so, the deformation of the fixing cylinder during use can be prevented, and the pin can be inserted straight into the fixing cylinder.

In the tenon fixing device of the present invention, it is preferable that an annular positioning stop is provided at one end of the fixing cylindrical body. As a result, the fixing cylinder is pushed into the first and second through holes until the positioning stopper comes into contact with the end of the first wood, thereby fixing the fixing cylinder. The insertion position of the thick portion and the outer surface notch formed in the fixing cylinder can be set correctly for the second through-hole.

It is preferable that a mark indicating an attachment angle of the fixing cylinder is provided on an outer exposed surface of the positioning stove. Thus, after the fixing cylindrical body is mounted in the first and second through holes, the mounting angle of the thick portion of the fixing cylindrical body and the cutout of the outer surface can be confirmed.

"Brief description of the drawings"

FIG. 1 is a perspective view showing a use state of a tenon fixing device used in a method of joining wood according to one embodiment of the present invention, FIG. 2 is a side sectional view of the tenon fixing device before inserting a pin, and FIG. Fig. 4 (A) and (B) are side sectional views before and after pin insertion of the tenon mortise fixing device, and Figs. 5 (A) and (B) are front sectional views after pin insertion. It is the front view and front sectional view of the cylinder for fixation concerning other examples of the tenon fixing device, respectively.

"Best mode for carrying out the invention"

As shown in FIG. 1, a tenon fixing device 10 used in a method of joining wood according to one embodiment of the present invention includes a fixing cylinder 11 made of, for example, plastic, wood, or metal, and a wood, It consists of pins 12 made of plastic or metal. The tenon fixing device 10 fits a tenon 16 formed at the lower end of a pillar 15 which is an example of the second wood into a tenon hole 14 of a base 13 which is an example of the first wood. In this state, the bases 13 and 18 are fitted into the first through holes 17, 18, and the second through hole 19 having a circular cross section formed through the base 13 and the tenon 16. Pillar 15 is fixed. The details are described below.

As shown in FIGS. 2 and 4 (A), the central portion of the fixing cylinder 11 is, for example, 0.5 to 1 cm shorter than the thickness L 1 of the tenon 16 formed on the column 15. A thick portion 20 protruding outward in the radial direction, and an outer notch 21 formed on the outside facing the thick portion 20 and having a thickness L 1 of tenon 16 that is, for example, 0.5 to 1 cm longer. have. Inclined portions 22 and 23 are provided at both inner ends of the thick portion 20, and the inclined portion 22 facilitates insertion of the pin 12.

The thick portion 20 is formed separately from the cylindrical main body 1 la of the fixing cylindrical body 11, and can be separated from the cylindrical main body 11 a by a temporary fixing means such as an adhesive so as to be separable therefrom. A force that can be fixed to the cylindrical main body 11a It is preferable to form a perforation or a cut groove (see FIG. 5) around the thick part 20 and integrally mold the cylindrical main body 11a.

The outer surface notch 21 is formed on the outer surface of the cylindrical main body 11a on the side opposite to the thick part 20. The cross-sectional shape of the outer surface notch 21 is an arc (semicircle) having a radius of curvature equal to the radius of the second through hole 19, and the depth thereof is cylindrical at the uppermost position. The height (T 1-T 2) protruding from the surface of the main body 11 a is the same. Then, the cross-sectional shape of the inner surface 27 of the thick portion 20 is an arc having the same radius of curvature as the radius of the pin 12, and the pin 12 is inserted as shown in FIG. 4 (B). In this case, the upper half of the second through hole 19 is in close contact with the outer surface of the outer notch 21, and the inner surface 27 of the thick portion 20 is in close contact with the pin 12. As a result, when the pin 12 is inserted as shown in FIG. 4 (B), an excessive load is applied to the thin portion 21 a provided with the thick portion 20 and the outer notch 21. It doesn't get started.

The length of the cylindrical body 11 a of the fixing cylinder 11 is substantially the same as the width L 2 of the base 13, but may be longer than the width L 2 of the base 13. This length is set because if the length of the cylindrical body 1 la is shorter than the width L 2 of the base 13, the supporting force of the cylindrical body 1 la on the base 13 is reduced. . The outer diameter of the cylindrical main body 11a is set to a dimension that allows the first and second through holes 17 to 19 to be tightly fitted when used, excluding the outer cutout 21. An annular positioning stop 24 having an enlarged diameter is provided at one end of the cylindrical main body 11a, whereby the axial direction of the thick portion 20 and the outer cutout 21 is provided. Is positioned.

In addition, a mark 29 indicating the mounting angle is formed on the exposed surface of the positioning stopper 24 as shown in FIG. This allows the fixing cylindrical body 11 to be inserted into the first and second through holes 17 to 19 while confirming the circumferential formation positions of the thick part 20 and the outer notch 21. Can be pushed in. Further, the mounting angle of the fixing cylindrical body 11 can be confirmed after being mounted on the first and second through holes 17 to 19. The mark 29 is formed as a convex arrow or a concave arrow, but a notch may be provided at one location in the circumferential direction of the positioning stopper 24, and a corresponding position may be provided later. A sticker or the like may be attached.

The pin 12 having a circular cross section is fitted into the fixing cylinder 11 and pushes the thick part 20 outward (see Fig. 3). The tip of the pin 12 is conical or truncated cone for easy insertion. A tapered tapered surface 25 is formed.

As shown in a fixing cylinder 30 according to another embodiment shown in FIG. 5, on the outer periphery of the cylindrical body 31 of the fixing cylinder 30, an axial direction of the fixing cylinder 30 is provided. It is also possible to provide linear projections 32 parallel to (length direction). The number of the linear projections 32 is not specified, but a plurality of linear projections are preferably provided. This prevents the outer cutout 21 from rotating when the fixing cylinder 30 is inserted, thereby preventing the angle of the outer cutout 21 from shifting, thereby simplifying the work. Also, the linear projections 32 bite into the first and second through-holes 17 to 19, and once attached, the fixing cylindrical body is inserted from the first and second through-holes 17 to 19. 30 is good It is not easy to get out. The fixing cylindrical body 30 is provided with a frusto-conical positioning stop 33 at the end of the cylindrical main body 31, and the through hole 34 into which the pin 12 is inserted is thin and eccentric downward. I have. The thick portion 35 is provided with an inclined surface 36 only on the insertion side of the pin 12. The other parts are substantially the same as those of the fixing cylinder 10, so that the same reference numerals are given and the detailed description is omitted.

Next, a method of joining wood according to an embodiment of the present invention using the fixing cylinder 10 and the pin 12 will be described.

As shown in FIG. 1, first, a tenon 16 formed at the end of a pillar 15 is inserted into a tenon hole 14 of a base 13. In the first step, the first and second through holes 17 to 19 having a circular cross section penetrating the base 13 and the tenon 16 are formed with the tenon 16 fitted in the tenon 14. . The first and second through holes 17 to 19 are formed by using, for example, a drill or a drill. Since it is a round hole, it can be easily processed, and the first and second insertion holes 17 to 19 can be formed in a short time.

As shown in FIG. 2, in the second step, a tenon 16 is formed on a thick part 20 which is shorter than the thickness L1 of the tenon 16 and can protrude outward in the radial direction, and is formed on an outer half opposite to the thick part 20. 16 A fixing cylinder 11 having an outer surface notch 21 longer than the thickness L 1 of 16 at the center is prepared, and the thick portion 20 of the fixing cylinder 11 is mortise-inserted, that is, downward. The cylindrical body 11a of the fixing cylindrical body 11 is hit into the first and second through holes 17 to 19 with a hammer or the like. Until the positioning stopper 24 touches the end face of the base 13, the cylindrical body

As shown in FIG. 4 (A), the outer notch 21 is located at the position where the thick portion 20 contacts the bottom of the second through hole 19 of the tenon 16 as shown in FIG. 1

It is installed so as to cover the ceiling of the second through hole 19 of 6. Positioning An arrow-shaped mark 29 shown in FIG. 1 is provided on the exposed surface on the outer side of the stove 24, facing upward, so that it is preferable to confirm this before and after fitting. When the fixing cylinder 30 is used, since the linear projection 32 is provided on the outer periphery of the cylindrical main body 31 in parallel with the axial direction, the fixing cylinder 30 is not used. It does not rotate when it is inserted, and ensures that the fixing cylinder 30 force at a predetermined angle \ It can be attached to the first and second through holes 17 to 19 o

In the third step, a pin 12 having a circular cross section that fits closely into the fixing cylinder 11 is inserted into the through-hole 11 b of the fixing cylinder 11, as shown in FIG. 4 (B). As described above, the thick portion 20 is pushed outward in the radial direction of the fixing cylinder 11 (ie, downward), the thick portion 20 is projected in the tenon insertion direction (ie, downward), and the pillar 15 is mounted on the base. Pull in the direction of 13 to perform close bonding of the base 13 and the pillar 15.

As shown in FIG. 3, when the pin 12 is inserted, the thick portion 20 protrudes downward, moving the tenon 16 downward. At this time, the ceiling of the second through hole 19 also moves downward, but since the outer surface notch 21 is formed in the fixing cylinder 10, it obstructs the movement of the tenon 16. Never. In this way, the tenon 16 is pulled downward and is tightly joined to the base 13.

As shown in FIG. 4 (A), since the cross-sectional shape of the outer surface of the outer notch 21 is an arc equal to the radius of the second through hole 19, the pin 12 is connected as shown in FIG. 4 (B). When the tenon 16 is inserted and moved downward, the upper half of the second through hole 19, that is, the ceiling, uniformly hits the outer surface of the outer notch 21. Also, since the cross-sectional shape of the inner surface 27 of the thick portion 20 is an arc equal to the radius of the inside 28 of the cylindrical body, that is, the radius of the pin 12, a stronger load is evenly distributed by the thick portion 20. Join. By configuring the fixing cylinder and the pin in this way, Improve the dimensional accuracy when joining wood, so that it can be installed in a short time.

The present embodiment has been described above. However, the present invention is not limited to this embodiment. For example, the tapered surface 25 a formed at the distal end of the fixing cylinder 11 and the pin 12 The taper surfaces 25 provided in the mortar can be omitted. By providing these forces, the workability of the tenon fixing device is improved.

"Industrial applicability"

The method for joining wood according to the present invention and the tenon fixing device used for the same are preferably applicable to the connection construction of a foundation and a column of a wooden building connected by using a tenon and a tenon, or the connection construction of a column and a beam, This makes it possible to build wooden buildings with strong earthquake resistance.

Then, the first and second holes penetrating across the mortise of the first wood and the mortise of the second wood while the mortise of the second wood is fitted in the mortise of the first wood. The holes can be formed using a rotary tool such as a drill or a drill, and the first and second through holes can be formed at the same time, so that the work can be performed easily without skill.

Also, after passing the fixing cylindrical body through the first and second through-holes so that the thick portion thereof faces the mortise-fitting direction, a predetermined pin is pushed into the fixing cylindrical body, so that the thickness is reduced. The thick part jumps out and the second wood is attracted to the first wood. In this case, the ceiling of the second through-hole formed in the tenon escapes into the outer notch formed in the outer half opposite to the thicker part of the fixing cylinder, so that the second wood can be safely inserted. Can be drawn to the first timber. In particular, in the tenon fixing device of the present invention, when a linear projection is provided on the outside of the fixing cylinder, it does not rotate when the fixing cylinder is inserted. Thus, the thick portion and the notch on the outer surface can be prevented from being displaced from the regular position of the second through hole, and the workability of the fixing cylinder can be improved.

Also, in the tenon fixing device of the present invention, when a positioning stop is provided at the end of the fixing cylindrical body, it is possible to prevent the displacement between the thick portion and the outer surface notch, and to further improve the dimensional accuracy. Can be better.

In the tenon fixing device of the present invention, when a mark indicating the mounting angle is provided on the fixing cylinder, the fixing cylinder is attached to the first and second through-holes, and the thick portion is formed. It is possible to confirm the mounting angle of the notch and the outer surface notch, and to confirm whether or not the fixing cylinder is attached to the first and second insertion holes at a correct angle.

Claims

The scope of the claims

1. A method of joining wood by fitting a tenon formed at an end of a second wood into a tenon of a first wood,

In a state where the tenon of the second wood is fitted into the tenon of the first wood, first and second through holes having a circular cross section penetrating the first wood and the tenon are respectively formed. One process,

A fixing cylinder having a thick portion which is smaller than the thickness of the tenon and protrudes outward in the radial direction, and an outer cutout formed in an outer half opposite to the thick portion and longer than the thickness of the tenon at a central portion. The fixing cylinder is oriented in the tenon insertion direction, and the thick section is positioned in the second through-hole. A second step of mounting by passing through the first and second through holes;

Inserting a pin having a circular cross section that fits closely to the fixing cylinder, extrudes the thick part radially outward of the fixing cylinder, and projects the thick part in the tenon insertion direction. And a second step of drawing the second wood toward the first wood and connecting the first and second woods to each other.

2. With the tenon provided at the end of the second piece of wood inserted into the mortise of the first piece of wood, the first piece of wood has a circular cross section formed through the tenon and the tenon. A tenon fixing device that fits into a second through hole, draws the second wood toward the first wood, and fixes the first and second woods, wherein a thickness of the tenon is provided. A thicker portion having a shorter length and protruding outward in the radial direction, and an outer cutout formed in an outer half facing the thicker portion and longer than the thickness of the tenon at a central portion, and Fixing to have a length substantially the same as the width of the first wood, and to fit tightly into the first and second through holes. A cylindrical body for

A tenon fixing device, comprising: a pin that is closely fitted into the fixing cylinder and pushes the thick portion outward.

3. The tenon fixing device according to claim 2, wherein a linear projection parallel to an axial direction of the fixing cylinder is provided on an outer periphery of the fixing cylinder. apparatus.

4. The tenon fixing device according to claim 2, wherein a cross-sectional shape of an outer surface of the outer cutout is an arc equal to a radius of the second through hole, and a cross-sectional shape of an inner surface of the thick portion is the same. When the pin is inserted and the arc is equal to the radius of the pin, the upper half of the second through hole closely contacts the outer surface of the outer cutout, and the inner surface of the thick portion is A tenon fixing device, which is in close contact with the pin.

5. The tenon fixing device according to claim 2, wherein an annular positioning stop is provided at one end of the fixing cylindrical body.

6. The tenon fixing device according to claim 5, wherein a mark indicating a mounting angle is provided on an exposed surface of the positioning stove.