JPH0635409U - Wood connector - Google Patents

Abstract

(57) [Summary] [Purpose] Even skilled craftsmen should be able to easily join timbers in a short time. [Structure] Each joint portion 2 of two tied wood pieces 1
A metal connecting plate 3 that is inserted across the two parallel connecting plates 3 and two parallel plates that are fixed to both ends of the connecting plate 3 in the joining direction and that are inserted together with the connecting plate 3 into a fitting hole 4 formed in the wood 1. It is composed of a metal material 5.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a timber connector used to butt and join two timbers, and is particularly used when constructing a timber frame in a wooden house or the like.

[0002]

[Prior art]

 Conventionally, there are various structures for joining timbers. Among them, there are a general one called an ant joint shown in Fig. 4 and a one called a sickle joint shown in Fig. 5.

As shown in FIG. 4 (a), the dovetail joint of FIG. 4 has a tenon C that gradually widens from the root side to the tip side at the joint end B of one wood A to be joined. The dovetail groove F into which the tenon C is fitted is formed at the joining end E of the other wood D, and the tenon C is fitted from above the dovetail groove F to join the timbers A and D together. It is a thing. As shown in FIG. 3B, the tenon C and the dovetail groove F are formed on the upper half of the joining ends B and E, respectively, and the joining end E of the wood D having the dovetail groove F is formed. A stool G is formed on the lower half, and a tenon C is placed on the stool G so that the timbers A and D joined together do not move up and down.

The sickle joint of FIG. 5 is stronger than the tensile force of the dovetail joint of FIG. 4 in the axial direction (the direction in which the tenon is formed), and as shown in FIG. A sickle-shaped tenon C is formed at the joining end B of one of the timbers A to be joined, in which the root J is straight and the tip K is wider than the root J and is gradually tapered. A fitting groove H having a shape matching the tenon C is formed at the joining end E of the wood D, and the sickle-shaped tenon C is fitted from above the fitting groove H to join the wood A and D. It is the one. The sickle-shaped tenon C and the fitting groove H are formed in the upper halves of the joining ends B and E, respectively, as shown in FIG. 2B, and the joining end E of the wood D having the fitting groove H is formed. A stool G is formed on the lower half, and sickle-shaped tenons C are placed on the stool G so that the timbers A and D joined together do not move up and down.

[0005]

[Problems to be solved by the device]

 In the dovetail joint and the sickle joint, as described above, a tenon C and a dovetail groove F having a complicated shape, or a tenon C and a fitting groove H are formed on each of the joining ends B and E of the woods A and D. This has to be done and requires some skilled craftsmanship. However, in recent years, there has been a considerable shortage of skilled craftsmen, and this has created a problem that the burden on one craftsman has increased or housing construction has not proceeded as planned. In fact, even skilled craftsmen take about 25 minutes to make an ant-joint and about 40 minutes to make a sickle-joint. For these reasons, there was a need for a method that allows wood to be joined relatively easily.

[0006] An object of the present invention is to provide a timber connector that enables even a skilled craftsman to easily join timbers in a short time.

[0007]

[Means for Solving the Problems]

 As shown in FIG. 1, the wood connecting device of the present invention includes a metal connecting plate 3 which is inserted over each joint 2 of two pieces of tied wood 1 and a connecting method of the connecting plate 3. It is characterized in that it is composed of two parallel metal members 5 which are fixed to both ends in the same direction and which are inserted into the fitting holes 4 formed in the wood 1 together with the connecting plate 3.

[0008]

[Action]

 In the wood connector of the present invention, as shown in FIG. 1, a vertical groove 16 that can be inserted into each of the joints 2 of the timbers 1 to be joined so that the connecting plate 3 can be halved, and the same connection. If a fitting groove 10 including a fitting hole 4 into which the metal material 5 fixed to the plate 3 can be inserted is formed, and a wood connector is inserted into the fitting groove 10, both woods 1 are connected. Since the connecting plates 3 are connected to each other by the metal materials 5 fixed to both ends of the connecting plates 3, the two woods 1 are joined together.

[0009]

Embodiment 1 In FIG. 1 showing an embodiment of a wood connector of the present invention, 5 is a metal material prepared by cutting a metal pipe having a diameter of 21.7 mm into a length of 52.5 mm, and 3 is a thickness. It is a connecting plate in which a metal plate having a length of 4 mm is formed into a rectangle having a length of 40 mm and a width of 68.3 mm. The two metal materials (metal pipes) 5 are tapered at one end. Then, the metal pipes 5 are welded to both short sides of the connecting plate 3. At this time, both metal pipes 5 are of course parallel to each other, and the tapered ends of both metal pipes 5 are in the same direction.

As shown in FIG. 1, the fitting grooves 10 for joining the timber 1 by inserting the timber connecting tool are first drilled in the joining portions 2 of the timber 1 to be joined, respectively. A fitting hole 4 (for example, 21φ) slightly smaller than the diameter of the metal pipe 5 is opened. By doing so, the metal pipes 5 inserted into both the fitting holes 4 become difficult to come out, and at the same time, the joint portions 2 are pulled toward each other, and the gap between the joint surfaces 14 becomes small. Next, a vertical groove 16 having the same width as the thickness of the connecting plate 3 is formed by a saw or the like from the joint surface 14 of each wooden piece 1 toward the fitting hole 4, and the vertical groove 16 and the fitting hole 4 are communicated with each other. To make.

[0011]

[Embodiment 2] FIG. 2 shows another embodiment of the wood connector of the present invention. This was made on the assumption that it would be used in place of the dovetail joint shown in Fig. 4, and the whole body was made relatively small as shown in the figure, and the tension applied to the connecting direction of the timber 1 to be joined was applied. Used when the force is relatively weak. In this wood connector, the metal material 5 has a diameter of 21. A metal pipe having a length of 7 mm and a length of 30 mm was used, and a metal plate having a thickness of 4 mm and a length and width of 25 mm × 38.3 mm was used as the connecting plate 3. In this embodiment, the connecting plate 3 is welded by lowering it by 3 mm from the end of the metal pipe 5 where the taper is not formed. This is to prevent the connecting plate 3 from protruding onto the surface of the wood 1 when it is driven in and fitted, as shown in FIG.

[0012]

[Embodiment 3] FIG. 3 shows another embodiment of the wood connector of the present invention. This was made on the assumption that it would be used instead of the sickle joint shown in Fig. 5, and as shown in the figure, the whole was made large, and when the tensile force applied in the connecting direction of the wood 1 is strong. use. In this wood connector, the metal pipe 5 has a diameter of 21.7 mm and a length of 90 mm, and the connecting plate 3 has a thickness of 4 mm and a length and width of 65 mm × 98. 3 mm ones were used respectively. Also in this embodiment, the connecting plate 3 is welded by being lowered by 3 mm from the end of the metal pipe 5 where the taper is not formed.

[0013]

[Effect of device]

 The wood connector of the present invention has the following effects. The fitting groove 10 formed in the joint portion 2 of the wood to be joined may be formed by forming a vertical groove 16 with a saw or the like in the fitting hole 4 opened by a drill as shown in FIG. Even if you are not a skilled craftsman, it can be easily created by anyone with some training. Moreover, since the fitting groove 10 can be manufactured by an ordinary craftsman in about 5 minutes, the working time can be greatly shortened.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a wood connector according to the present invention.

FIG. 2A is a top view showing another embodiment of the wood connector of the present invention, and FIG. 2B is a cross-sectional view taken along line XX of FIG.

FIG. 3 (a) is a top view showing another embodiment of the wood connector of the present invention, and FIG. 3 (b) is a cross-sectional view taken along line XX of FIG.

FIG. 4A is a top view showing an example of a conventional timber connecting structure, and FIG. 4B is a sectional view taken along line XX of FIG. 4A.

5A is a top view showing another example of the conventional timber connecting structure, and FIG. 5B is a cross-sectional view taken along line XX of FIG.

[Explanation of symbols]

 1 Wood 2 Joined part 3 Connection plate 4 Insertion hole 5 Metal material

Claims (1)

[Scope of utility model registration request] 1. A metal connecting plate (3) inserted over each joint (2) of two butted timbers (1), and fixed to both ends of the connecting plate (3) in the joining direction, together with the connecting plate (3). A connector for wood, comprising: two parallel metal members 5 inserted into an insertion hole 4 formed in the wood 1.