JP5707298B2 - Joint - Google Patents

Description

  The present invention relates to a connector used for connecting two members in a wooden building.

  In the floor structure of a wooden building, joists are arranged at equal intervals, and a floor board is often laid on the floor joists. The joist is a bar that extends horizontally, and is connected to a horizontal member that constitutes the skeleton of the building, and receives a vertical load acting on the floor board. The floor must be sufficiently rigid so that it does not sink greatly due to daily loads, such as the movement of residents, and the joists are placed at relatively narrow intervals.

  The role of the joist is simply to receive the vertical load, and the strength against the horizontal load may be the minimum necessary. Therefore, I-shaped cross-section wood called I-shaped joist or the like may be used for the purpose of reducing the joist weight. This wood has a structure in which upper and lower flanges are integrated with a plate-shaped web, and has high rigidity against a vertical load with respect to weight. After the lumber and the web are separately produced, they are integrated by bonding.

  FIG. 8 shows an example of the shape of a connector for connecting a joist to a horizontal member. The horizontal member has a simple rectangular cross section, but I joist is used for joists. This joist has about twice the height of the horizontal member in order to ensure rigidity, and protrudes downward from the horizontal member. The joint is U-shaped when viewed from above, the front plate contacting the side surface of the horizontal member, two side plates projecting at right angles from both side edges of the front plate, and two side plates The front plate is provided with two tops and bottoms that fit into the side holes of the horizontal member. Bolts are inserted into the hoses and the joint is attached to the horizontal member, and then joists are inserted between the two side plates, and nails are driven in to fix the joists.

  The following patent documents are listed as prior art related to the present application. In patent document 1, the invention which makes the underfloor space and the inside of a wall communicate and smoothes the flow of air is disclosed, and an I-shaped joist is used for the joist member that supports the floor board. In order to support the joist member with a large beam, a coupling hardware is incorporated between the end of the joist member and the side surface of the hanging member. Patent Document 2 and Patent Document 3 disclose an invention that can divide a hardware that connects two members, and can suppress the protrusion of the hardware attached to the member during transportation and storage, and increase the loading capacity. There are effects such as prevention of cargo collapse.

Japanese Patent Laid-Open No. 10-280598 JP 2005-146835 A JP 2005-273237 A

  The joint tool shown in FIG. 8 is preferably attached to the horizontal member at the lumbering stage in order to reduce the amount of work at the site. However, this connector extends in the vertical direction corresponding to the height of the joist, and after being attached to the horizontal member, it protrudes in a wide area from the side surface to the obliquely lower side. In the figure, the height of the joists is drawn for the sake of space, but the actual joists may have a height about three times that of the horizontal member. It becomes a big obstacle during storage. However, this point can be solved by making it possible to divide the connector as in Patent Document 2 and Patent Document 3.

  In the hardware of Patent Document 2, a plurality of locking holes are provided in the basic hardware, and a claw portion that is inserted into the locking hole is provided in the accessory hardware. The locking holes and the claw portions have a complicated shape in which a large number of them are continuously arranged, and it is inevitable that the work of cutting out from the steel plate is complicated at the time of manufacture, and it is difficult to suppress the cost. Further, in the hardware of Patent Document 3, the basic hardware attached to the vertical member has a multi-layer structure, which requires work such as welding at the time of manufacture, and it is difficult to suppress the cost. The hardware as described in both documents can be used to connect the horizontal member and joists as shown in FIG. However, many jota are arranged at a narrow interval, and it is important to suppress the manufacturing cost of the joint.

  The present invention has been developed on the basis of such circumstances, and an object thereof is to provide a connector that can be used for attachment of joists, etc., has a structure that can be divided, and that can also suppress the manufacturing cost.

The invention according to claim 1 for solving the above problem is used to connect the side surface of the trunk member and the end surface of the branch member, and is fixed to the side surface of the trunk member via a fixture, A cage body that accommodates an end portion of the branch member, and the support body includes a front plate that contacts a side surface of the trunk member, and two side plates that protrude from both side ends of the front plate. The cage body has a substantially U shape surrounding the lower surface and both side surfaces of the branch member, and a lateral hole for inserting a locking tool for fixing the branch member into the cage body. In order to place the basket body on the support body, a holding groove into which the upper part of the side plate can be inserted is provided at both ends of the cage body. in addition to providing the hanging piece projecting, said the side plates of the support, provided with a slit for inserting the hooking piece A bonding tool according to claim Rukoto.

  The present invention is a joint for connecting a joist to a horizontal member or the like in a wooden building, but it can be used other than the attachment of joists, and the horizontal member is called a trunk member in order to ensure versatility. The joists are referred to as branch members. By connecting the end surface of the branch member to the side surface of the trunk member, a T-shaped or L-shaped connecting portion is configured, and the branch member is supported by the trunk member. Note that both the trunk member and the branch member can have any cross-sectional shape, and an I-shaped joist can be used for the branch member.

  The joint is formed by forming a steel plate and is composed of two elements, a support and a basket. The support body is attached to the side surface of the trunk member and is for receiving the branch member. The rectangular front plate contacting the side surface of the trunk member and two sides projecting at right angles from both side ends of the front plate. An end portion of the branch member is accommodated between the two side plates. In addition, description about a support body and a cage | basket body is based on the attitude | position with which both the front board and the side board stood upright. The fixture is for fixing the support to the trunk member, and is a bolt, a screw nail or the like, and is inserted from the front plate toward the trunk member.

  The cage body is for accommodating the end portion of the branch member, and is U-shaped surrounding the lower surface and both side surfaces of the branch member, and is placed on the support body by hanging both ends thereof on the side plate of the support body. The Moreover, after accommodating a branch member in a cage body, in order to integrate both, a locking tool such as a nail is driven from the cage body toward the branch member. Therefore, a lateral hole for inserting a locking tool is provided on the surface of the cage body. Note that it is not necessary to bring the entire inner side of the cage body into contact with the branch member, and there may be a partial gap. Therefore, even when an I-shaped joist is used as the branch member, it is not necessary to match the shape of the cage body with the outer shape of the I-shaped joist.

  The holding groove is a groove opened downward, and is provided for inserting the side plate of the support, and is provided at both ends of the cage body. Therefore, the holding groove ensures a width that allows the side plate to be inserted without difficulty. Then, when the upper portion of the side plate is inserted into the holding groove, the cage body is received by the support body. The holding groove is formed by a method such as turning back the vicinity of both ends of the cage body by 180 degrees.

  Naturally, the distance between the two side plates of the support and the holding grooves at both ends of the cage body is equal, one side plate is inserted into one holding groove, and the other holding groove is inserted into the other holding groove. Therefore, the support body and the cage body are integrated with the centers aligned, and the end portions of the branch members are accommodated therein. However, the shape of the support body and the basket body can be freely determined. In addition to the configuration in which the cage body enters between the two side plates, the side plate can also enter in the cage body.

  In this way, by providing a holding groove by a method such as turning back the vicinity of both ends of the cage body, inserting the side plate of the support body into it, and receiving the cage body with the support body, the structure of the detachable connector is obtained. Simplify. Therefore, both the support body and the basket body do not require complicated processing, and the manufacturing cost can be suppressed. Further, when the trunk member is sawed, only the support body can be attached to the trunk member, and the protrusion from the trunk member can be suppressed, which is excellent in terms of transportation and storage.

  The invention according to claim 2 is for more securely integrating the support body and the cage body, and the side plate has side holes that are concentric with the lateral holes when the cage body is placed on the support body. It is provided. Since a common joist is sandwiched between horizontal members or the like at both ends, it is not necessary to consider the horizontal load, and the means for regulating the horizontal movement of the car body may be simple. However, depending on the use conditions of joists, it is necessary to consider the horizontal load.

  In order to receive the horizontal load acting on the joists, the support body and the cage body may be firmly integrated. In this invention, a locking tool (nail) for integrating the cage body and the branch member is also inserted into the support body so that the support body, the cage body and the branch member can be integrated with the side plate of the support body. A hole is provided. The side holes are positioned concentrically with the lateral holes of the cage body when the cage body is placed on the support.

As in the first aspect of the invention, the connecting member for connecting the side surface of the trunk member and the end face of the branch member is structured by two elements of the support body and the cage body, so that only the support body can be attached to the trunk member. The protrusion of the connector is suppressed, and many effects such as reduction of space and prevention of collapse of goods are obtained during transportation and storage. In addition, the holding groove for placing the cage body on the support can be easily formed by folding the vicinity of both ends of the cage body 180 degrees, and there is no need for welding or complicated cutouts during manufacturing. Can be suppressed. Therefore, even when the joists lined up at a narrow interval are attached, a large number of the joining tools according to the present invention can be used without difficulty. Further, by providing a hanging piece on the upper portion of the cage body, providing a slit on the side plate of the support, and inserting the hanging piece into the slit, movement and deformation of the cage body can be regulated.

  When the cage body is placed on the support plate as in the invention described in claim 2, the side plate of the support body is provided with a side hole at a position aligned with the lateral hole of the cage body. By inserting a nail or the like so as to penetrate the side hole, the support body, the cage body and the branch member can be integrated. Therefore, even when a horizontal load acts on the branch member, the branch member does not fall off from the trunk member, and in addition to the effect of the invention of claim 1, it is excellent in terms of safety and versatility.

It is a perspective view which shows the example of a shape of the connector by this invention. It is a perspective view which shows the intermediate stage which connects the trunk member and branch member of FIG. It is a perspective view which shows the state which connected the trunk member and branch member of FIG. It is a perspective view which shows the method of connecting the four joists to one pillar in the shape of a cross using the four joining tools of FIG. It is a perspective view which shows the connector of a shape different from FIG. FIG. 6 is a perspective view showing an intermediate stage of connecting the trunk member and the branch member of FIG. 5. It is a perspective view which shows the state which connected the trunk member and branch member of FIG. It is a perspective view which shows the example of a shape of the connector which connects a joist to a horizontal member, and I-shaped joist is used for the joist.

  FIG. 1 shows an example of the shape of a connector according to the present invention. This figure depicts a connecting portion between a side surface of a horizontally extending horizontal member and an end face of a joist in a wooden building, and a connector is interposed between the horizontal member and the joist. In addition, since a joining tool can be used universally besides the connection of a horizontal member and a joist, the horizontal member is called the trunk member 31 and the joist is called the branch member 41. The trunk member 31 is a member constituting the skeleton of the building, and the branch member 41 is a member that is supported by the trunk member 31 in an aerial manner.

  The trunk member 31 is a wood having a simple rectangular cross section, but the branch member 41 is a wooden I-shaped joist, and upper and lower flanges 42 and 44 are connected by a wall-shaped web 43, and each element is sawn individually. After that, it is integrated by bonding. The branch member 41 is taller than the trunk member 31. However, the trunk member 31 and the branch member 41 need to have the same upper surface, and the branch member 41 protrudes from the lower part of the trunk member 31.

  A connector for connecting the trunk member 31 and the branch member 41 includes the support body 11 and the cage body 21. The support 11 is formed by cutting out a steel plate, and is composed of a front plate 12 that contacts the side surface of the trunk member 31 and two side plates 15 that project at right angles from both ends of the front plate 12. It is a letter shape. Further, the front plate 12 is provided with two columnar ridges 13 projecting upward and downward on the side of the trunk member 31, and correspondingly, the side holes of the trunk member 31 are machined with ridge holes 33, The movement of the support body 11 is regulated by fitting the side wall 13 into the side hole 33.

  After the tenon 13 is fitted into the tenon hole 33, the support 11 is attached to the trunk member 31 using a fixture such as a bolt 36. The bolts 36 are inserted from the hoses 13 toward the trunk member 31, and their heads are accommodated inside the hoses 13. In addition, in order to allow only the shaft portion of the bolt 36 to be inserted, a center hole 14 is provided in the center of the horn 13. Further, in order to insert the shaft portion of the bolt 36 in the back of the side hole 33 of the trunk member 31, a lower hole 34 is processed, and a counterbore hole 35 whose inner diameter is enlarged is processed at the tip. When the bolt 36 is inserted from between the two side plates 15, the tip thereof reaches the counterbore hole 35, the washer 38 is assembled, and the nut 37 is screwed and tightened, the support 11 is fixed to the trunk member 31. Is done. The nut 37 and the washer 38 are accommodated in the counterbore hole 35.

  At the upper and lower ends of the side plate 15, guides 18 that are open in an inverted C shape are provided. The guide 18 serves as a guide when inserting the branch member 41 and regulates the movement of the cage body 21. In this figure, the guides 18 on the lower end side are not necessary, but are provided at both upper and lower ends assuming that the support 11 is turned upside down. Further, the side plate 15 is provided with a stepped portion 16 having a part of the region protruding outward, and a slit 17 is formed above and below the stepped portion 16. The step portions 16 are also lined up and down on the assumption that the support 11 is turned upside down.

  The cage body 21 is for accommodating the end portion of the branch member 41, and is a deep bottom U-shape formed from a strip-shaped steel plate, and connects two horizontal plates 22 extending vertically by a bottom plate 23. Further, a bent piece 26 folded outward is provided at the upper ends of the left and right horizontal plates 22, and a holding groove 25 into which the side plate 15 of the support 11 can be inserted between the bent piece 26 and the horizontal plate 22. Is formed. At the center of the tip of the bending piece 26, a hanging piece 27 protruding downward is provided. By inserting the hanging piece 27 into the slit 17 of the support body 11, the movement of the basket body 21 is restricted.

  The basket body 21 and the branch member 41 are integrated by a locking tool such as a nail 49. Therefore, the horizontal plate 22 is provided with a plurality of horizontal holes 29 for inserting the nails 49. In order to prevent the tips of the nails 49 from contacting each other, the positions of the horizontal holes 29 are changed by the left and right horizontal plates 22. In addition, the horizontal holes 29 in the figure are provided only in the horizontal plate 22, but may be provided in both the horizontal plate 22 and the bottom plate 23.

  The pressing portion 51 is a portion where the horizontal plate 22 is extruded in a hemispherical shape, and pushes the lower flange 42 downward to prevent the branch member 41 from rattling. In addition, in order to firmly integrate the cage body 21 and the branch member 41, a wooden pad 46 is sandwiched between the upper and lower flanges 42 and 44 to fill the gap between the horizontal plate 22 and the web 43.

  After attaching the support body 11 to the trunk member 31 and further attaching the cage body 21 to the branch member 41, moving the cage body 21 onto the support body 11 and then lowering the cage body 21 gradually, The cage body 21 is guided by the guide 18 on the upper end side and is inserted into the support body 11. In addition to the step portion 16 and the guide 18 of the support body 11, the bent piece 26, the hanging piece 27, and the pressing portion 51 of the cage body 21 are provided symmetrically.

  FIG. 2 is a step in the middle of connecting the trunk member 31 and the branch member 41 of FIG. By tightening the bolt 36 and the nut 37, the support 11 is fixed to the trunk member 31, and the front plate 12 is in close contact with the side surface of the trunk member 31. Note that the guide 18 on the upper end side is located below the upper surface of the trunk member 31. Further, the end portion of the branch member 41 is accommodated in the basket body 21, and both are integrated by a nail 49 driven from the horizontal plate 22. The lowermost nail 49 is driven into the lower flange 42, but the upper nail 49 is driven into the web 43 through the contact plate 46.

  At the stage of sawing the trunk member 31 and the branch member 41, the support body 11 is attached to the trunk member 31 and the cage body 21 is further attached to the branch member 41 as shown in this figure. The connection of the trunk member 31 and the branch member 41 is completed only by mounting on the support body 11. In the figure, the difference in height between the trunk member 31 and the branch member 41 is not large, but the actual branch member 41 may be about three times as high as the trunk member 31, and the joint can be divided. This greatly improves convenience during transportation and storage.

  FIG. 3 shows a state in which the trunk member 31 and the branch member 41 in FIG. 1 are connected. The side plate 15 of the support body 11 is inserted into the holding groove 25 of the cage body 21, and the basket body 21 is placed on the support body 11. The hanging piece 27 of the cage body 21 is inserted into the slit 17 of the support body 11, and the bending piece 26 is sandwiched between the front plate 12 and the guide 18. Therefore, the basket body 21 is restricted from moving in the horizontal direction.

  FIG. 4 shows a method of connecting four joists to one pillar in a cross shape using four joints of FIG. Assuming that the support 11 in FIG. 1 is turned upside down, the guide 18 and the stepped portion 16 are provided up and down, and the side plate 13 of the front plate 12 is provided to be biased upward. Therefore, when the support body 11 is turned upside down, the height of the tenon 13 changes, but the arrangement of the guide 18 and the stepped portion 16 does not change. In FIG. 4, two of the four supports 11 are turned upside down, and the four supports 11 can be fixed at the same height while avoiding the interference of the orthogonal bolts 36. it can.

  In FIG. 4, the vertically extending pillars are used as the trunk members 31, and the joists connected to the side surfaces thereof are used as the branch members 41. The four branch members 41 are connected at the same height of the single trunk member 31. In addition, the height of the side hole 33 and the lower hole 34 is adjusted corresponding to the two support bodies 11 being turned upside down. In addition, the point which attaches the cage body 21 to the edge part of the branch member 41, and the point which mounts the cage body 21 in the support body 11 are the same as FIG.

  FIG. 5 shows a connector having a shape different from that of FIG. The connector shown in this figure uses a screw nail 39 as a fixture, and the cage body 21 is arranged so as to surround the outside of the support body 11. The support 11 has a U-shape composed of the front plate 12 and the side plate 15, but the front plate 12 does not have the tenon 13 and has six inner holes 14 into which the screw nails 39 are inserted. The car body 21 has a U-shape with a deep bottom formed by connecting two horizontal plates 22 with a bottom plate 23, and bent pieces 26 that are folded inward are provided at the upper ends of the left and right horizontal plates 22. A holding groove 25 into which the side plate 15 of the support 11 can be inserted is formed between the horizontal plate 22 and the horizontal plate 22. In order to accommodate the bent piece 26 and the like, a pocket 50 protruding outward is provided at the upper end of the side plate 15 of the support 11.

  The cage body 21 is disposed so as to surround the outside of the support body 11. However, the lateral plate 22 can be brought into contact with the branch member 41 in terms of stability in a range protruding below the support body 11. preferable. Therefore, a narrowed portion 28 is provided in the middle of the horizontal plate 22 to narrow the lower width. The side plate 15 of the support 11 is provided with a side hole 19 at a position concentric with the lateral hole 29 of the cage body 21, and a nail 49 is driven from the lateral hole 29 through the side hole 19 into the branch member 41. Thus, the support body 11, the cage body 21, and the branch member 41 can be integrated. Of the six horizontal holes 29 provided in one horizontal plate 22, the upper three are concentric with the side holes 19.

  FIG. 6 is a step in the middle of connecting the trunk member 31 and the branch member 41 of FIG. After attaching the support body 11 to the trunk member 31 with the screw nails 39, only the cage body 21 is placed on the support body 11. In this state, the bent piece 26 of the cage body 21 enters the pocket 50 of the support body 11, and the side plate 15 of the support body 11 is inserted into the holding groove 25 of the cage body 21. Further, a contact plate 46 is bonded to the end of the branch member 41 so as to connect the upper and lower flanges 42 and 44. Then, after the branch member 41 is moved above the support 11, the branch member 41 is gradually lowered and inserted between the two side plates 15 to come into contact with the bottom plate 23, whereby the temporary placement of the branch member 41 is completed. To do.

  FIG. 7 shows a state in which the trunk member 31 and the branch member 41 of FIG. 5 are connected. After temporarily placing the branch member 41 on the connector, the nail 49 is driven through the lateral hole 29. The three upper horizontal holes 29 are concentrically aligned with the side holes 19 of the support body 11, and the support body 11, the cage body 21, and the branch member 41 are integrated by driving a nail 49 therein. . Therefore, it can withstand a tensile load acting between the trunk member 31 and the branch member 41. The branch members 41 shown in FIGS. 1 to 7 are all I-shaped joists, but instead of this, square bars having a simple rectangular cross section may be used.

DESCRIPTION OF SYMBOLS 11 Support body 12 Front plate 13 Hoso 14 Middle hole 15 Side plate 16 Step part 17 Slit 18 Guide 19 Side hole 21 Basket body 22 Horizontal plate 23 Bottom plate 25 Holding groove 26 Bending piece 27 Hanging piece 28 Constriction part 29 Horizontal hole 31 Trunk member (Horizontal material)
33 Horizontal hole 34 Pilot hole 35 Counterbore hole 36 Bolt (fixing tool)
37 Nut 38 Washer 39 Screw nail (fixture)
41 Branch member (Jaw)
42 Flange (lower side)
43 Web 44 Flange (upper side)
46 Batting plate 49 Nail (locking tool)
50 pocket 51 pressing part

Claims (2)

Used to connect the side surface of the trunk member (31) and the end surface of the branch member (41),
A support body (11) that is fixed to a side surface of the trunk member (31) via a fixing tool (36, 39), a cage body (21) that accommodates an end of the branch member (41), and
With
The support (11) includes a front plate (12) that contacts the side surface of the trunk member (31), and two side plates (15) that protrude from both side ends of the front plate (12). U-shaped,
The cage body (21) has a substantially U shape surrounding the lower surface and both side surfaces of the branch member (41), and the cage body (21) has a locking tool (21) for fixing the branch member (41). 49) is provided with a lateral hole (29) for inserting,
In order to place the basket body (21) on the support body (11), a holding groove (25) into which the upper part of the side plate (15) can be inserted is provided at both ends of the cage body (21) .
To the left and right of the upper part of the basket body (21), a hanging piece (27) protruding in a tongue shape is provided, and the hanging piece (27) is inserted into the side plate (15) of the support body (11). A slit is provided with a slit (17) . The side plate (15) is provided with a side hole (19) that is concentric with the lateral hole (29) when the cage (21) is placed on the support (11). The connector according to claim 1.

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