JP2014070456A - Joint hardware - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide joint hardware which allows positioning work and fitting-in work of a side plate of a joint metal fitting and a slit of a horizontal member to be easily performed.SOLUTION: Joint hardware 1 comprises: a back plate 11 of which front side is brought into contact with a side face of a structural material, and which is fixed to the structural material 2 by passing bolts through bolt holes 11a respectively; and a pair of side plates 12, 12 in which pin holes 12a through which drift pins are inserted are provided, and which are inserted into slits 31, 31 machined in an end face of a horizontal member and are fixed to the horizontal member by the drift pins passed through the pin holes 12a. Inclined planes 12c1, 12c2 of which cross sections become smaller toward top edges thereof are provided on the outside surface and the inside surface of the upper part of each of the pair of side plates 12, 12.

Description

  The present invention relates to a metal joint used when joining end faces of horizontal members such as beams and girders to side surfaces of structural members such as columns and trunks in various tree structures.

  For example, as a conventional joint hardware used when joining the end face of a horizontal member such as a beam or a girder to the side surface of a structural material such as a column or torso, the front side contacts the side surface of the structural material, and the bolt hole has a bolt A back plate fixed to the structural material through and a pin hole into which the drift pin is inserted are provided, inserted into a slit machined in the end face of the horizontal member, and the drift pin is passed through the pin hole and installed horizontally A joint fitting having a pair of side plates fixed to the material (for example, refer to Patent Document 1) and a ring-shaped locking portion provided on the front side of the back plate, and the load acting on the horizontal member is joined to the metal fitting. There has been proposed a joint hardware that reduces the burden on the bolt by being transmitted to the structural material via the locking portion (see, for example, Patent Document 2).

JP 2001-336216 A JP 2001-207537 A

  However, in the joint hardware of Patent Documents 1 and 2 described above, when the structural material and the horizontal member are joined via the joint metal, the position of the slit of the horizontal member and the side plate of the joint metal fixed to the structural material. Since it is necessary to insert or fit the slit of the horizontal member in the side plate of the joint fitting fixed to the structural material and fixed to the structural material, there is a problem that it takes time to perform the alignment work and the fitting work. In particular, such alignment and insertion work is performed at a high place and in a state where a heavy horizontal member such as a beam or a girder is lifted by a crane or the like. It took time and effort to align the slits and fit them.

  In addition, if the side plate of the joining bracket is not bent within the allowable range with respect to the back plate due to manufacturing variations, etc., or if there is an error in the formation of the slit, the joining bracket can be replaced In the case of mounting on the side of the structural material, the joint bracket may not be mounted perpendicular to the structural material, or horizontal members such as beams and girders may be warped even if there is no error in slit formation. However, it took time and effort to align and fit the side plates of the fittings and the slits of the horizontal member.

  Therefore, the present invention has been made paying attention to such problems, and a metal joint that can easily perform alignment work and fitting work between the side plate of the joint fitting and the slit of the horizontal member, etc. The purpose is to provide.

In order to solve the above-described problems, a metal fitting according to the present invention is a metal fitting for bonding an end surface of a horizontal member such as a beam or a girder to a side surface of a structural material such as a column or a trunk, The front side is in contact with the side surface, the back plate fixed to the structural material through the bolt through the bolt hole, and the pin hole into which the drift pin is inserted are provided, inserted into the slit processed in the end surface of the horizontal member, The pin hole has a pair of side plates passed through the drift pin and fixed to the horizontal member, and at least one of the upper outer surface and the inner side surface of the pair of side plates, An inclined surface is provided so that the cross section is tapered.
Here, the lower limit for forming the inclined surfaces of the pair of side plates is preferably higher than the portion of the pin receiving groove where the drift pin fixed in advance on the upper portion of the horizontal member abuts and receives the load.
In addition, the pin holes provided in the pair of side plates are provided so as to protrude toward the outside or the inside of the side plates, respectively, while the inclined surfaces provided on the upper portions of the pair of side plates are provided on the protruding side of the pin holes. Should be provided on the opposite side.

  In the joint metal fitting of the present invention, since at least one of the upper side surface and the inner side surface of the pair of side plates is provided with an inclined surface whose cross section tapers toward the upper end, Positioning work and fitting work with the slit of the frame can be easily performed.

It is a front view which shows the use condition of the joining metal fitting of embodiment. It is a principal part cross-sectional front view in the use condition of the joint metal fitting of embodiment. It is a principal part top view in the use condition of the joint metal fitting of embodiment. (A), (b) is the top view (top view) and front view of the metal joint of embodiment, respectively. It is a right view of the joint metal fitting of an embodiment. (A), (b) is the sectional view on the AA line and sectional view on the BB line of the metal joint of an embodiment, respectively. It is a perspective view of the joint metal fitting of an embodiment. (A)-(c) is an enlarged view which shows the example of how to provide an inclined surface, respectively. (A), (b) is an enlarged view which shows the further another example of how to provide an inclined surface, respectively. (A), (b) is an enlarged view which shows the further another example of how to provide an inclined surface, respectively. (A), (b) is a front view which shows the further another example of how to provide an inclined surface, respectively. (A), (b) is a top view which shows the further another example of how to provide an inclined surface, respectively.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of a metal fitting according to the present invention will be described in detail with reference to the accompanying drawings. The embodiment described below is merely an example of the present invention including its dimensions and the like, and the present invention is not limited to the following embodiment, and can be appropriately changed within the scope of the technical idea of the present invention. is there.

  As shown in FIG. 1 to FIG. 3, this metal fitting 1 is used to join the end face of a horizontal member 3 such as a beam or a girder to the side surface of a structural member 2 such as a column or a trunk. The metal plate is cut and bent to provide a back plate 11 and left and right side plates 12 and 12.

  The back plate 11 is a portion that contacts the side surface of the structural material 2 such as a pillar, and as shown in FIG. 5 and FIG. 7 and the like, a plurality of back plates 11 are fixed to the structural material 2 through bolts 4 (here, four for convenience). Bolt hole 11a is provided. Here, the number and interval of the bolt holes 11a are arbitrary. In addition, the volt | bolt 4 is comprised from the axial part 4a by which the screw thread was formed in the front-end | tip as shown in FIG. 2, and the head 4b. On the front side of the structural member 2 such as a pillar, a countersunk part 21 is formed by shaving the periphery of the bolt hole 11a so that the head 4b of the bolt 4 does not protrude.

  On the other hand, the side plates 12 and 12 are provided on both sides of the back plate 11 as shown in FIGS. 4 to 7, and are processed into end surfaces of the horizontal member 3 such as beams and girders as shown in FIG. 3. As shown in FIG. 2, it is inserted into the slits 31, 31 and is fixed to the horizontal member 3 through the drift pin 5 in the pin hole 12 a.

  Here, on the periphery of the pin hole 12a provided in each of the pair of side plates 12, 12, as shown in FIG. 4 (a), FIG. 5, and FIG. 6 (a), from the inside to the outside of the side plate 12, For example, an annular convex portion 12a1 that is protruded from the outer surface of the side plates 12 and 12 by about 1 mm by extrusion processing such as press processing or embossing is provided. Therefore, the strength of the side plate 12 around the pin hole 12a is improved. However, in the present invention, since the annular convex portion 12a1 is not essential, it may be extruded in the opposite direction, that is, from the inner side to the outer side of the side plate 12, or may be omitted.

  A pin receiving groove 12b is formed above the pin hole 12a. The pin receiving groove 12b is configured to receive the drift pin 5 fixed in advance on the upper part of the horizontal member 3. This is because, before connecting the structural member 2 and the horizontal member 3 via the joint hardware 1, the drift pin 5 is inserted and fixed to the upper portion of the horizontal member 3 in advance. When connecting the frame 3 with the metal fitting 1, the drift pin 5 is positioned and positioned in the pin receiving groove 12 b, and then the drift pin 5 is inserted into the pin hole 12 a provided in the side plates 12 and 12. To pass through.

  And in this metal joint 1, as shown in FIGS. 4-7, it is the inclined surface 12c1 which the cross section tapers on the outer side surface and inner side surface of the upper part of the pair of side plates 12 and 12 toward the upper end. , 12c2 are formed. Here, the inclined surfaces 12c1 and 12c2 may be formed by crushing the upper outer surface and inner surface of the side plates 12 and 12 by crushing (pressing) to form the inclined surfaces 12c1 and 12c2. The inclined surfaces 12c1 and 12c2 may be formed by grinding.

  Therefore, in this metal joint 1, the positions of the slits 31, 31 processed on the end surface of the horizontal member 3 and the positions of the side plates 12, 12 of the metal fitting 1 fixed to the structural material 2 are aligned and fixed to the structural material 2. When the slits 31, 31 of the horizontal member are inserted or fitted into the side plates 12, 12 of the bonded metal fitting 1, the positions of the slits 31, 31 processed on the end surface of the horizontal member 3 and the bonding fixed to the structural member 2 Even if the positions of the side plates 12 and 12 of the metal fitting 1 are slightly deviated from each other, the inclined surfaces 12c1 and 12c2 of the pair of side plates 12 and 12 are brought into contact with the ends of the slits 31 and 31 and guided into the slits 31 and 31, respectively. Therefore, the alignment operation and the fitting operation are facilitated.

  As a result, when the side plates 12 and 12 of the joining metal fitting 1 are not bent within an allowable range with respect to the back plate due to manufacturing variations or the like, or when there is an error in the formation of the slits 31 and 31, Even when the metal fitting 1 is attached to the side surface of the structural material 2 such as a pillar or torsion, the joint metal fitting 1 cannot be attached perpendicularly to the structural material 2 or there is no error in the formation of the slits 31, 31. The horizontal member 3 may be warped, but even in such a case, it is possible to easily perform the alignment operation and the fitting operation between the side plates 12 and 12 of the fitting 1 and the slits 31 and 31 of the horizontal member. .

  Moreover, in this metal joint 1, the lower limit for forming the inclined surfaces 12c1 and 12c2 on the upper outer surface and the inner surface of both the side plates 12 and 12 is set horizontally in the pin receiving groove 12b as shown in FIGS. The drift pin 5 fixed in advance on the upper portion of the material 3 is in contact with the load and is located above the portion receiving the load. Therefore, even if the inclined surfaces 12c1 and 12c2 are formed on the upper outer surface and inner surface of both the side plates 12 and 12, the pin receiving groove 12b that contacts the drift pin 5 and receives the load does not decrease in strength. .

  Moreover, in this metal fitting 1, a thick steel plate of about 2 mm is used, and the vertical length of the inclined surfaces 12c1 and 12c2 is about 10 mm, and the inclined angle of the inclined surfaces 12c1 and 12c2 with respect to the vertical direction. Is 30 degrees or less. Therefore, also in this respect, the alignment work and the fitting work of the side plates 12 and 12 of the joint fitting 1 and the slits 31 and 31 of the horizontal member are facilitated.

  In addition, in the joining metal fitting 1 of this embodiment, as shown also to Fig.8 (a), the cross section is so that it goes to the upper end on both the outer side surface of both upper side of a pair of side plates 12 and 12, and an inner side surface, and goes to an upper end. In the present invention, the tapered inclined surfaces 12c1 and 12c2 have been described. However, the present invention is not limited to this, and as shown in FIG. 8B, only the upper inner surfaces of the pair of side plates 12 and 12 are provided. In addition, inclined surfaces 12c1 and 12c2 whose cross sections taper toward the upper end may be formed, or as shown in FIG. 8C, only on the upper outer surfaces of the pair of side plates 12 and 12, You may form the inclined surfaces 12c1 and 12c2 which the cross section tapers toward the upper end.

  As shown in FIGS. 4 to 7, in this joining metal fitting 1, the peripheral edge of the pin hole 12 a provided in the side plates 12, 12 is shown in FIGS. 4 (a), 5, 6 (a). Thus, since the annular convex part 12a1 protruded toward the outer side from the inner side of the side plate 12 is provided, the slits 31 and 31 formed in the horizontal member 3 also have a slit width larger than the case where the annular convex part 12a1 is not provided. The upper end portions of the side plates 12 and 12 are relatively located inside the slits 31 and 31 by the annular convex portion 12a1 protruding to the outer surface, and are sandwiched between the slits 31 and 31. It becomes easy to contact | abut to the center convex part 32 (refer FIG. 3) of the horizontal member 3 which it was. However, as shown in FIG. 8B, when the inclined surfaces 12c1 and 12c2 whose cross sections taper toward the upper end are formed only on the inner side surfaces of the upper portions of the pair of side plates 12 and 12, Since the inclined surfaces 12c1 and 12c2 are in contact with the central convex portion 32 (see FIG. 3) of the horizontal member 3 and guide the pair of side plates 12 and 12 into the slits 31 and 31, they protrude to the outer surface side of the side plate 12. Even if the annular convex portion 12a1 is provided, the alignment work or fitting work between the side plates 12, 12 of the fitting 1 and the slits 31, 31 of the horizontal member can be easily performed. On the other hand, when an annular convex portion that protrudes toward the inner side surface of the side plate 12 is provided, the upper ends of the side plates 12 and 12 are relatively slit 31 by the annular convex portion that protrudes toward the inner surface side. , 31, and easily abuts on both side convex portions 33, 33 (see FIG. 3) of the horizontal member 3 on both sides of each of the slits 31, 31. However, as shown in FIG. 8C, when the inclined surfaces 12c1 and 12c2 whose cross sections taper toward the upper end are formed only on the upper outer surfaces of both the pair of side plates 12 and 12, The inclined surfaces 12c1 and 12c2 come into contact with both side protrusions 33 and 33 (see FIG. 3) of the horizontal member 3, and are effective for alignment work and fitting work.

  In the present invention, the present invention is not limited to this. As shown in FIG. 9A, the left side plate 12 in the drawing is provided with inclined surfaces 12c1 and 12c2 on the upper outer surface, whereas the right side plate 12 in the drawing is used. In addition, inclined surfaces 12c1 and 12c2 may be provided on the inner surface of the upper portion. On the contrary, as shown in FIG. 9B, the side plate 12 on the left side in the drawing has an inclined surface on the inner surface of the upper portion. On the other hand, in the side plate 12 on the right side in the drawing, the inclined surfaces 12c1 and 12c2 may be provided on the upper outer surface.

  Furthermore, the present invention is not limited to this, and as shown in FIG. 10A, the inclined surfaces 12c1 and 12c2 may be provided only on the side plate 12 on the right side of the figure, or as shown in FIG. Thus, the inclined surfaces 12c1 and 12c2 may be provided only on the left side plate 12 in the drawing.

  In addition, when the side plates 12 and 12 have different heights before and after the pin receiving groove 12b, an inclined surface may be formed only on the upper portion of the higher side plates 12 and 12. For example, as shown in FIGS. 11A and 11B, when the side plates 12 and 12 on the back plate 11 side are high, only the side plates 12 and 12 on the plate 11 side are shown in FIGS. An inclined surface 12c2 may be provided. However, in this case, the lower limit of the inclined surface 12c2 is preferably higher than the upper ends of the side plates 12 and 12 having a lower front height than the pin receiving groove 12b. Moreover, as shown in FIG.11 (b), you may curve the upper end part of the inclined surface 12c2.

  Moreover, in the said embodiment, as shown in FIGS. 3-11, although inclined surface 12c1 and 12c2 were provided only in a pair of side plate 12 and 12, it demonstrated not only this but FIG. As shown in FIG. 12B, the inclined surfaces 12c1 and 12c2 may be provided so as to cover the back plate 11. Further, as shown in FIG. 11 may also be provided with inclined surfaces 12c1 and 12c2. In the case shown in FIG. 12 (a), there is an advantage that the inclined surfaces 12c1 and 12c2 are surely formed also in the bent portion between the pair of side plates 12 and 12 and the back plate 11. In the case shown in FIG. 12B, if the pair of side plates 12, 12 and the back plate 11 are in a state before being bent, the inclined surfaces 12c1, 12c2 are formed on the pair of side plates 12, 12 and the back plate 11 at a time. There is an advantage that can be formed.

  In the above example, as shown in FIGS. 1 to 7, the pair of side plates 12 and 12 are each described with two pin holes 12 a in the vertical direction (longitudinal direction), but in the present invention, This is not a limitation. That is, since the number of pin holes 12a and the lengths of the side plates 12, 12 in the vertical direction are determined according to the height of the horizontal member 3 to be joined by the joining bracket 1, as shown in FIG. Each pin 12 may be provided with only one pin hole 12a, and although not illustrated, it is of course possible to provide three or more pin holes 12a in each of the side plates 12 and 12 in the vertical direction (vertical direction).

DESCRIPTION OF SYMBOLS 1 Joining metal fitting 11 Back plate 11a Bolt hole 12 Side plate 12a Pin hole 12a1 Annular convex part 12b Pin receiving groove 12c1, 12c2 Inclined surface 2 Structural material 21 Countersink part 3 Horizontal member 31 Slit 4 Bolt 4a Shaft part 4b Head part 5 Nut 6 Drift pin

Claims (3)

A joining hardware for joining the end face of a horizontal member such as a beam or a girder to the side of a structural member such as a column or torso,
A back plate that comes into contact with the side surface of the structural material and is fixed to the structural material through a bolt through a bolt hole;
A pin hole for inserting the drift pin is provided, and it has a pair of side plates that are inserted into a slit machined in the end face of the horizontal member, and through which the drift pin is passed and fixed to the horizontal member. And
A metal joint, characterized in that an inclined surface is provided on at least one of the outer side surface and the inner side surface of the upper part of the pair of side plates so that the cross section thereof becomes tapered toward the upper end. The joint hardware according to claim 1,
The lower limit for forming the inclined surfaces of the pair of side plates is a metal joint characterized in that the drift pin fixed in advance on the upper part of the horizontal member in the pin receiving groove comes above the portion receiving the load. In the metal joint according to claim 1 or 2,
The pin holes provided in the pair of side plates are respectively provided so as to protrude toward the outside or the inside of the side plates,
The slanting surface provided on the upper part of the pair of side plates is provided on a side surface opposite to the protruding side of the pin hole.

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