JP3023260U - Ant washer - Google Patents

Abstract

(57) [Summary] (Modified) [Problem] Dovetail washer to be used when bolting a through column, a girder or a striking beam with a precut construction method for a wooden building. SOLUTION: A hole 4 which is made of hard rubber and is formed into a quadrangular pyramid having a quadrangular cross section, and which penetrates from a central portion of an upper surface 2 to a central portion of a lower surface 3.
Ant washer 1 Further, a dovetail washer made of hard rubber and having a vertical cross section forming a right-angled triangle, and having a hole parallel to the bottom face, which penetrates from the center of the end face perpendicular to the bottom face to the center of the slope. [Effect] The dovetail washer is made of hard rubber that has elasticity and is resistant to compression and tension. Therefore, if the dovetail washer is fastened in a compressed state at the time of initial fastening, the wood will dry and shrink or warp. Even if a gap is created in the fastening portion, the ant washer extends and fills the gap, and holds the fastening that does not deviate over a long period of time, thus providing a wooden construction that is resistant to earthquakes and wind damage.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a dovetail washer used for fastening a through column, a body difference, or a striking beam with bolts when constructing a wooden structure by a precut method.

[0002]

[Prior art]

 Conventionally, for bolting, a □ -shaped hole is dug in the barrel difference and a fastening method using a steel flat washer is used.

[0003]

[Problems to be solved by the device]

 In the above-mentioned conventional method, the bolts and nuts that were tightened when the shaft was assembled were loosened as the timber was dried, but the bolts and nuts that had been tightened loosened, and the tightened parts such as the pillars, the body gaps, and the striking beams loosened. If these frameworks, which are the center of wooden construction, become loose, the building may become unbearable against earthquakes and strong winds and may collapse. Therefore, as the timber gradually dries after the completion of the wooden construction, it is an important issue how to keep the joints such as the columns where the loosening occurs without loosening and maintaining the proper tightening.

[0004]

[Means for Solving the Problems]

 The object of the present invention is to eliminate the above-mentioned drawbacks, and to form a dovetail made of hard rubber into a quadrangular pyramid having a square cross-section and having a hole penetrating from the center of the upper surface to the center of the lower surface. It's a washer. Also, it is a pentahedron made of hard rubber and having a right-angled triangular cross-section, and is a dovetail washer having a hole parallel to the bottom that penetrates from the center of the end face perpendicular to the bottom to the center of the slope. .

[0005]

[Action]

 Since the dovetail washer according to the present invention is constructed as described above and is made of hard rubber that has elasticity and is resistant to compression and tension, it can be used as a pillar and a four-way body difference, a body difference and a striking beam, and a bridge. If the dovetail washer is fastened to the pillar and the three-sided body difference in a compressed state during the initial fastening, the dovetail will expand even if the wood dries and contracts or warps, creating a gap in the fastening part. It fills the gap and keeps a tight connection for a long time.

[0006]

【Example】

 1 is a perspective view of a dovetail washer 1 according to the first embodiment, and FIG. 2 is a perspective view of a dovetail washer 5 according to the second embodiment. In FIG. 1, the dovetail washer 1 is made of hard rubber and is formed into a quadrangular pyramid having a quadrangular cross section, and is provided with a hole 4 penetrating from the central portion of the upper surface 2 to the central portion of the lower surface 3. In FIG. 2, the dovetail washer 5 is made of hard rubber and is a pentahedron whose vertical section is a right triangle, and penetrates from the center of the end face 7 which is perpendicular to the bottom face 6 to the center of the slope 8. A hole 9 parallel to the above is provided.

FIG. 3 shows a construction example in which the dovetail washer 1 according to the first embodiment is used for the combination of the pillars 10 and the four-sided barrel difference 11, where (a) is a plan view and (b) is AA. FIG. The four cylinders 11 are factory-machined by pre-cutting to dig a hole 13 with a trapezoidal cross section for burying the dovetail washer 1 in the upper surface, and a bolt hole 14 from the hole 13 toward the tip. I am doing it. At the construction site, after inserting the body difference 11 into which the pulling bolts 15 have been inserted from the four sides of the precut truss 10, insert the dovetail washer 1 with the upper surface 2 on the wall side 16 at both ends of the pulling bolt 15. A plain washer 18 is provided on the lower surface 3 of the dovetail washer 1 and fixed with a nut 19. A woodworking bond is injected from the pulling bolt hole where the tips of the body difference 11 intersect to fix the column 10 and the body difference 11 together.

FIG. 4 is a plan view showing a construction example using the dovetail washers 1 and 5 of Example 1 and Example 2 in combination with the body difference 11 and the striking beam 20. A stake beam 20 is obliquely attached to the side surface of the body difference 11 orthogonal to each other, and a bolt hole 21 penetrating the body beam 20 and the body difference 11 and a bolt hole 22 penetrating the stile beams 20 on both sides sandwiching the body difference 11 are formed. To provide. After inserting the inquiry bolts 23 and 24 into the bolt holes 22, the slant surface 8 of the dovetail washer 5 is provided on the slant surface side of the striking beam 20, and the lower surface 3 of the dovetail washer 1 is provided on the flat surface side of the body difference 11. Install the flat washer 18 on the outer side of each dovetail washer 1 and 5, and fasten it with the nut 19.

FIG. 5 is a perspective view showing a construction example in which the dovetail washer 1 of the first embodiment is used in the combination of the pillar 10 and the three-sided body difference 11. A hole 13 having a trapezoidal cross-section for burying the dovetail washer 1 is dug in the upper surface of the three body gaps 11 by factory machining by precutting, and a bolt hole 14 is penetrated from the hole 13 toward the tip. I am doing it. At the construction site, after inserting the body difference 11 into which the contact bolts 15 have been inserted from three sides of the pillars 10, insert the dovetail washer 1 with the upper surface 2 on the wall side 16 at the end of the contact bolts 15, A flat washer 18 is provided on the lower surface 3 of the washer 1 and fixed with a nut 19. A woodworking bond is injected from the contact bolt hole where the tips of the body difference 11 intersect to fix the pillar and the body difference together.

[0010]

[Effect of device]

 The present invention is configured as described above, and since the dovetail washer is made of hard rubber that is elastic and resistant to compression and tension, when the dovetail washer is fastened in a compressed state at the time of initial fastening, Even if the wood dries and contracts or warps to create a gap in the joint, the ant washer stretches and fills the gap, maintaining a stable joint over a long period of time, and It is possible to provide a wooden construction that is resistant to wind damage.

[Brief description of drawings]

FIG. 1 is a perspective view of a dovetail washer according to a first embodiment.

FIG. 2 is a perspective view of a dovetail washer according to a second embodiment.

3A and 3B show an example of construction in which the dovetail washer of Example 1 is used in a combination of a pillar and a four-sided barrel difference, FIG. 3A is a plan view, and FIG. 3B is a sectional view taken along line AA.

FIG. 4 is a plan view showing an example of construction in which the dovetail washers of Example 1 and Example 2 are used in a combination of a pillar and a three-way body difference.

FIG. 5 is a perspective view showing a construction example in which the dovetail washer of the first embodiment is used in a combination of a pillar and a three-sided barrel difference.

[Explanation of symbols]

 1,5 Dovetail washer 2 Upper surface 3 Lower surface 4,9 Hole 6 Bottom surface 7 End surface 8 Slope 10 Through column 11 Body difference 13 Cross-section trapezoidal hole 14 Bolt hole 15,23,24 Inquiry bolt 18 Plain washer 20 Fire hammer

Claims (2)

[Scope of utility model registration request] 1. A hole made of hard rubber having a rectangular cross section and a square pyramid with a square cross section, and a hole (4) penetrating from the center of the upper surface (2) to the center of the lower surface (3). Ant washer. 2. A hard rubber member having a right-angled triangular cross section.
An ant characterized by having a hole (9) which is a face body and which extends from the center of the end face (7) perpendicular to the bottom face (6) to the center of the slope (8) and which is parallel to the bottom face. Washer.