JP3032139U - Wooden shaft structure - Google Patents

Abstract

(57) [Abstract] [PROBLEMS] To reduce labor of a frame work by using a simple frame as much as possible without using a complicated frame and expensive equipment required therefor. Also, a large cross section and a wood shaft of 3640 mm or more are obtained. SOLUTION: The wooden shaft structure is a hollow quadrangular body in which plate-like natural wood or laminated wood is alternately crossed and the joints are bonded. In particular, the plate-shaped natural wood or laminated wood is two-by-four or two-by-six, and the joint portion is a finger joint or a step joint. [Effect] A simple framing is made possible without using expensive equipment for the framing, and the work is saved. A wooden shaft with a large cross section can be obtained, and the connection between wooden shafts is easy, and 3640 mm
The span above can be taken. Further, airtightness is easily obtained for the frame, heat insulation is easy, and energy saving is achieved.

Description

[Detailed description of the device]

[0001]

[Technical field to which the device belongs]

 The present invention relates to a wooden shaft structure.

[0002]

[Prior art]

 Conventionally, various woods have been used for the wooden shafts such as the foundation, pillars and beams of houses, and various sizes are available. For this reason, a tree of a size commensurate with those is required, and its resources are limited. Among the wooden axes, the beams differ in size depending on the skip width, and it is said that there is a problem for spans of 3640 mm or more. And, these frameworks are made by using the equipment that has been cut in advance by expensive equipment, but the construction method that stacks them vertically and horizontally is complicated and requires a lot of labor. ing. In addition, it is difficult to insulate the complicated gaps in the frame.

[0003]

[Problems to be solved by the device]

 The present invention makes it possible to reduce the number of types by using a simple shaft assembly without using a complicated shaft assembly and the expensive equipment required for this, and to enable the vertical and horizontal heights of the shaft assembly to be used for work. I want to save labor. In addition, we would like to make a span of 3640 mm or more by facilitating the strengthening of large cross-sections and connections. Therefore, the present invention intends to provide a structure for a wooden shaft that enables these.

[0004]

[Means for Solving the Problems]

 Here, the present inventor has found a structure for a wooden shaft in which a plate-shaped natural wood or laminated wood is alternately orthogonally crossed and bonded at a joint to form a hollow quadrangular body. In particular, the plate-shaped natural wood or It has been found that laminated wood is two-by-four or two-by-six and the joints are finger joints or step joints.

[0005]

[Embodiment of device]

 Recently, the remarkable development of adhesives has made it possible to obtain laminated wood with excellent strength. Therefore, laminated wood as well as natural wood can be used for the construction of the wooden shaft structure. As the plate-like natural wood or laminated wood that is a component of the wooden shaft structure, one having a shape suitable for the strength of the wooden shaft structure is used. These plate-shaped woods are also used in which one adhesive surface is inclined at a right angle to the plate surface or at another angle such as 45 degrees. According to these, the bonding surface of the other plate-shaped wood to be bonded becomes the plate surface or is inclined at another angle such as 45 degrees with respect to the plate surface, and forms a right angle intersection with each other.

Since the wooden shaft structure is a hollow quadrangle, the hollow portion also has a quadrangular shape. The cross-sectional shapes and the like of these plate-shaped timbers when they are joined are not particularly limited, but it is desirable to combine them so that the cross-sectional outer shape of the wooden shaft structure is a square or another regular quadrangle. As the plate-like wood, two-by-four (cross section 2 inches × 4 inches) or two-by-six (cross section 2 inches × 6 inches) can be used. Bonding is performed with an adhesive, but in order to increase the bonding area and increase the adhesive strength, the shape of the bonding surface should be a finger joint if the bonding is to be performed on the plate surface, or cut at 45 degrees to the plate surface. If this is the case, it is appropriate to use a staircase joint.

Since the hollow structure of the wooden shaft structure obtained by the present invention is a quadrangle having a constant shape, this structure can be utilized to a great extent to make connections for various metal specifications such as columns, beams, and iron cores on the base. The various frameworks can be configured with, and the construction work can be speeded up. In particular, these frameworks make it easier to maintain the airtightness inside the house and facilitate insulation.

[0008]

【Example】

 Hereinafter, the present invention will be described in more detail with reference to examples. As shown in Fig. 1, four pieces of plate-like natural wood 2 with a cut surface of 2 inches x 4 inches and a length of 3640 mm were used, and the joint portion 3 was bonded as a finger joint to form a square cross section. A shape 1 for a wood shaft is obtained.

FIG. 4 shows a case where the wooden shaft structure 1 is connected to each other by using a coaxial connecting fitting 5 made of a galvanized iron square pipe having a bolt hole. In addition, the case where the wooden shaft structure 1 is connected to the L-shape by using the right-angled connection metal fitting 6 made of a combination of galvanized iron square pipes having bolt holes and the zinc-plated iron accessory 7 for maintaining the right angle is illustrated. It is shown in FIG.

[0010]

[Effect of device]

 As described above, the structure for a wooden shaft of the present invention can save labor in a simple shaft assembly without using expensive equipment for preparing the shaft assembly. Also, the large cross section and connection are strengthened to enable spanning of 3640 mm or more. Since the frame is simple, it is easy to obtain airtightness against the wooden shaft, heat insulation is easy, and energy saving is achieved. Furthermore, various types of metal fittings can be used to construct the framework in various ways, which can be expected to speed up construction work.

[Brief description of drawings]

FIG. 1 is an explanatory view showing a wooden shaft structure obtained by adhering natural wood produced by two-by-fousing with finger joints.

FIG. 2 is an explanatory view showing a cross section of a wooden shaft structure obtained by adhering a laminated material of two-by-six with a finger joint.

FIG. 3 is an explanatory view showing a cross section of a wooden shaft structure obtained by adhering laminated lumber of two-by-six with a step joint.

FIG. 4 is an explanatory view showing a coaxial connecting fitting when the wooden shaft structures are coaxially connected to each other.

FIG. 5 is an explanatory view showing a right-angled connecting fitting when the wooden shaft structures are connected at right angles.

[Explanation of symbols]

 1 Wooden shaft structure 2 Plate-shaped wood 3 Joint part 4 Hollow part 5 Coaxial connecting metal fitting 6 Right angle connecting metal fitting 7 Attached metal fitting

Claims (3)

[Scope of utility model registration request] 1. A structure for a wooden shaft, which is a hollow quadrangular body in which plate-like natural wood or laminated wood is alternately crossed and bonded at a joint. 2. The wooden shaft structure according to claim 1, wherein the plate-shaped natural wood or laminated wood is two-by-four or two-by-six. 3. The wooden shaft structure according to claim 1, wherein the joint portion is a finger joint or a step joint.