JP4879544B2 - Reinforcement structure of wood joint and reinforcement of wood mouth - Google Patents

Description

  The present invention relates to a reinforcing structure for a wood joint portion and a reinforcing structure for a wood mouth portion used in a building having a wooden frame structure.

  For example, in a wooden frame structure, as shown in FIG. 5 (a), the beam 2 is joined to the column 1 so that the end face end 2a of the wooden beam 2 faces the side portion of the wooden column 1 on the joining side. As a structure, the pins 3 and 3 are passed through the flesh of the beam 2 in the horizontal direction perpendicular to the beam 2 at a position closer to the base end than the tree mouth 2a of the beam 2 and the side opposite to the beam 2 on the column 1 Threaded through the threaded rods 4, 4, and the threaded ends of the threaded rods 4, 4 are threaded into the flesh of the beam 2 through the mouth 2 a of the beam 2 and screwed into the pins 3, 3. 2. Description of the Related Art Conventionally known is a structure in which nuts 5 and 5 screwed to end portions are tightened to join the beam 2 in a state of being pulled toward the column 1 side.

  However, in the joining structure as described above, for example, as shown in FIGS. 5B and 5C, when a horizontal force due to an earthquake or the like acts and the screw rod 4 is pulled, an attempt is made to prevent the beam 2 from coming off. There is a possibility that split fracture or shear fracture may occur in the portion 6 that is shown deeply toward the lip 2a along the pin 3 on the side to be cut. In particular, in the case of the wooden beam 2, since the fiber extends in a direction orthogonal to the lip 2a, such destruction is likely to occur.

  In view of the above-described problems, the present invention can effectively prevent split fracture and shear fracture directed to a wood head by a pin, and can realize it easily and at low cost. It is an object of the present invention to provide a reinforcing structure for a joint portion and a reinforcing structure for a wood end.

  The above-mentioned problem is that the wood mouth faces the joining side, the pin is directed in a direction perpendicular to the wood at a position closer to the base end than the wood mouth, and is passed through the meat of the wood. In a wood joint that serves as a retaining material that prevents the wood from coming off, screws or nails are driven into the wood meat in a direction perpendicular to the pins and wood at a position between the wood mouth and the pins. The screw or nail is solved by a reinforcing structure of the wood joint, characterized in that the wood meat part on one side sandwiching the pin and the wood meat part on the other side are sandwiched (No. 1). 1 invention).

  In this reinforced structure, if a force is applied to the wood from the joining side to prevent the pin from being pulled out, splitting or shearing will occur in the wood flesh portion of the wood facing the mouth. The force to work is working, but the screw or nail is passed through the wood meat part on one side and the wood meat part on the other side sandwiching the pin. The nail works to prevent split fracture and shear fracture from occurring in the wood meat portion of the portion of the wood facing the pin, and can effectively prevent the occurrence of split fracture and shear fracture.

  Moreover, it can be realized simply by driving a screw or nail into the meat part of the wood, and the occurrence of split fracture or shear fracture can be prevented easily and at low cost.

  In addition, the above problem is that the pin that is located on the base end side of the wood mouth and on which the tensile force acts in the direction of the wood mouth is directed in the direction perpendicular to the wood and passed through the meat of the wood. The screw or nail is driven into the meat of the wood in a direction perpendicular to the pin and wood at a position between the wood mouth and the pin, and the screw or nail The same problem is solved by the reinforcing structure of the wood mouth part characterized in that the wood meat part on one side and the wood meat part on the other side are sandwiched (second invention). In 2nd invention, it is not ask | required whether the end of wood faces the joining side, and whether wood is joined to the joining side.

  Since the present invention is as described above, it is possible to effectively prevent split fracture and shear fracture toward the wood mouth by the pin for retaining, and realize it easily and at low cost. be able to.

  Next, the best mode for carrying out the present invention will be described with reference to the drawings.

  The reinforcing structure of the first embodiment shown in FIG. 1 is a case where it is used for a column beam joint in a wooden frame structure, and the basic structure is the same as the conventional one shown in FIG. In this embodiment, as shown in FIG. 1, the screws 7... Are perpendicular to the pins 3, 3 and the wooden beam 2 at a position between the tree mouth 2 a of the wooden beam 2 as the wood and the pins 3, 3. It is driven into the meat of the wooden beam 2 and is divided into the wooden beam meat part on one side and the wooden beam meat part on the other side sandwiching the pin 3.

  According to this reinforcing structure, as shown in FIGS. 2 (a) and 2 (b), a horizontal force due to an earthquake or the like acts, the screw rod 4 at the end of the wooden beam 2 is pulled, and the pin 3 is connected to the wooden beam 2. When it works to prevent it from coming off, the screw 7 is passed through that part so as to extend over the wooden beam meat part on one side and the wooden beam meat part on the other side across the pin 3 , The screws 7 ... work to prevent splitting and shear failure from occurring in the wood beam meat portion of the portion 6 shown deeply toward the lip 2a along the pin 3 and prevent the occurrence of splitting and shear failure. It is.

  As described above, the reinforcing structure described above can prevent splitting and shearing of the end of the wooden beam by the pins 3 and 3 simply by hitting the screw 7... In addition, it is possible to easily reinforce the existing column beam joints at a low cost.

  The reinforcing structure of the second embodiment shown in FIG. 3 is used when the wooden base 8 and the wooden pole 9 are joined, and the base 8 and the wooden pole 9 are made of wood as wood on the upper surface of the base 8. The bottom end of the pillar 9 faces the bottom end 9a, and the hoso pipe 10 is passed through the bottom end end 9a of the pillar 9 into the meat of the pillar 9 and the meat of the base 8, and the base end is lower than the bottom end end 9a of the pillar 9. The pin 3 is passed through the flesh of the pillar 9 in the horizontal direction perpendicular to the pillar 9 at the side, that is, the upper position, and the pin 11 is also passed through the base 8 so as to penetrate the hozo pipe 10. Is passed and the pillar 9 and the base 8 are joined.

  In this pillar / base joint, the screws 7 are directed in a direction perpendicular to the pins 3 and the wooden pillar 9 at a position between the tree mouth 9a of the wooden pillar 9 and the pin 3 on the pillar side. It is driven into the meat of No. 9 and is divided into the wooden pillar meat part on one side and the wooden pillar meat part on the other side sandwiching the pin 3 on the pillar side.

  According to this reinforcing structure, as shown in FIGS. 4 (A) and 4 (B), horizontal force due to an earthquake or the like acts, the hozo pipe 10 is pulled, and the pin 3 on the column side prevents the wooden column 9 from coming off. , The screw 7 is passed through the part so as to extend over the wooden pillar meat part on one side and the wooden pillar meat part on the other side sandwiching the pin 3. It acts to prevent split fracture and shear fracture from occurring in the wood pillar portion of the portion 6 shown darkly toward the butt 9a along the pin 3, thereby preventing the occurrence of split fracture and shear fracture.

  As described above, even with the above-described reinforcing structure, it is possible to prevent split fracture or shear failure of the end of the wooden pole 9 by the pins 3 by simply hitting the screws 7... Can be done.

  Although the embodiment of the present invention has been described above, the present invention is not limited to this, and various modifications can be made without departing from the spirit of the invention. For example, in the above embodiment, the case where the screw 7 is used for reinforcement is shown, but a nail may be used, or a screw or a nail may be used.

  In the above embodiment, the wooden beam 2 and the wooden pillar 9 are made of wood. However, the reinforcing structure of the present invention is not limited to the wooden beam 2 and the wooden pillar 9, and the wood mouth is the joining side. It can be widely used to reinforce wood at various joints that face each other and prevent the wood from coming off from the joint side with pins that pass through the wood meat so as to be orthogonal to the wood.

  Furthermore, the term “wood” is used to include materials of various materials that can cause split fracture or shear failure with a pin like the original wood, such as wood powder mixed resin material or resin material. In essence, the present invention can be widely used to reinforce the end portion of a material that can cause split fracture or shear failure toward the end by a pin.

The reinforcement structure of 1st Embodiment is shown, A figure (I) is a front view, A figure (B) is a cross-sectional top view, A figure (C) is a cross-sectional perspective view. FIGS. 1A and 1B are front views showing the operating state. The reinforcing structure of 2nd Embodiment is shown, A figure (A) is a front view, A figure (B) is a cross-sectional side view, A figure (C) is a cross-sectional top view, A figure (D) is a cross-sectional perspective view. FIGS. 1A and 1B are front views showing the operating state. FIG. 1A is a front view of a column beam joint, and FIGS. 2B and 2C are front views showing the behavior of the joint.

Explanation of symbols

2 ... Beam (wood)
2a ... Kiguchi 3 ... pin 7 ... screw 9 ... pillar (wood)
9a ... Kiguchi

Claims (2)

The wood's mouth is facing the joint side , a screw rod is passed from the joint side to the meat of the wood through the small edge , and the pin is oriented in a direction perpendicular to the wood at a position closer to the base end than the mouth, In a wood joint that is passed through meat and connected to the threaded rod , and the pin serves as a retaining material that prevents the wood from coming off from the joint side, a screw or nail is provided between the wood mouth and the pin. It is oriented in a direction perpendicular to the pin and the wood at the position and is driven into the meat of the wood so as to be located away from the screw rod and the pin, the screw or nail comprising both the screw rod and the pin A wood joining portion characterized by passing through the wood meat portion of the portion facing the fore edge along the pin, spanned by the wood meat portion on one side sandwiching the surface and the wood meat portion on the other side Reinforcement structure. The wood mouth faces the joint side, a hozo pipe is passed through the meat from the joint side through the small mouth, and the pin is directed in a direction perpendicular to the wood at a position proximal to the mouth, so that the meat of the wood In a wood joint where the screw or nail is connected to the hozo pipe and is used as a retaining material that prevents the wood from coming off from the joint side, a screw or a nail is positioned between the wood mouth and the pin. One of the screws or nails that are oriented in a direction perpendicular to the pins and the wood and are located in a position away from the hozo pipe and the pins, and the screws or nails sandwich the surface including both the hozo pipe and the pins. A reinforcing structure for a wood joint, which is divided between a wood meat portion on one side and a wood meat portion on the other side, and penetrates a portion of the wood meat portion toward the forehead along the pin.

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