JP4037073B2 - Joining bracket - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a joint fitting that is embedded in a structural material such as a wooden beam, a base, a fork, a pillar, or a bundle to form a structural body.
[0002]
[Prior art]
In the conventional shaft construction method, for example, when joining columns or bundles to beams or girders, or beams or girders, there are cases in which joining metal fittings are interposed between them regardless of the joint. As shown in FIGS. 14A to 14C, for example, a case where the column 52 is joined to the base 51 with the joining metal fitting 53 interposed therebetween will be described. The joint fitting 53 is composed of a pipe body 54 and an insertion plate 55 formed on one end side of the pipe body 54, and has a battledore shape as a whole. In the case where a shaft assembly is performed at a construction site, the pipe body 54 of the joint fitting 53 is inserted and embedded in the embedded hole 56 precut in the base 51, and the pipe body 54 is fixed by the drift pin D from the side. In a state where the pipe body 54 is fixed to the base 51, the insertion plate 55 protrudes upward from the base 51.
As shown in FIGS. 14B and 14C, a slit 58 is formed on the lower end end of the column 52. The column 52 is arranged so that the slit 58 corresponds to the insertion plate 55 on the base 51, and the column 52 is approached from the side so that the insertion plate 55 is inserted into the slit 58. With the insertion plate 55 inserted into the slit 58, the insertion plate 55 is fixed by the drift pin D from the side, and the joining of the base 51 and the column 52 by the joining metal 53 is completed.
The reason why the fitting 53 is constituted by the pipe body 54 and the insertion plate 55 is mainly because of a request for rationalization of the joining of the pillar 52 to the base 51. Even if the base 51 and the beam (not shown) are arranged in advance and the pillar 52 cannot be lowered onto the base 51 from above, the pillar 58 is formed by forming the slit 58 at the top of the pillar 52 in this way. This is because it is possible to advance 52 on the base 51 from the lateral direction and join them.
[0003]
[Problems to be solved by the invention]
By the way, such a conventional joint metal fitting 53 is manufactured by welding the pipe body 54 and the insertion plate 55. However, since the welding work is required, the high cost of the joint fitting 53 is caused, and the insertion plate 55 cannot be fitted into the slit 58 unless the insertion plate 55 is accurately welded to the pipe body 54. There was a hassle of having to adjust it with a hammer at the site. For this reason, there has been a demand for a cheaper one of this type of joint fitting that does not require welding work.
The present invention is for solving the above-mentioned problems. The purpose is to provide a joint fitting that does not require welding of the pipe body and the insertion plate.
[0004]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, the invention of claim 1 is constituted by a pipe body and an insertion plate formed on one end side of the pipe body, and the pipe body is embedded and fixed in the first structural member. both abutted the butt portion of the second structural member to the side of the first structural member by inserting and fixing the same insertion plate into the insertion groove formed in the butt portion of the second structural member A metal joint fitting for joining a structural material, comprising a metal piece formed by press-molding a single metal plate to halve the pipe body and the insertion plate, In the joint fitting used to form the pipe body by combining the same insertion plates of the same metal piece and combining the same halves , the insertion plate has a concave portion on one side formed by press molding as a slip prevention means. And a convex part on the other side Forming a convex body, the uneven member is disposed on the left and right equidistant across the center line of the insert plate, and gist that as irregularities direction of the left and right of the corresponding same uneven body is different.
In such a configuration, two metal pieces in which a half plate and an insertion plate are formed by press-molding a single metal plate are prepared, the pipes are combined with each other and the half plate is combined. By constructing, it is possible to assemble the fitting. Since the pipe body is cylindrical, it is difficult to manufacture by press molding, and it is even more difficult to press integrally with the insertion plate. However, if it is a halved part, it can be formed integrally with the insertion plate. The pipe body combined in such a joint fitting is embedded and fixed in the first structural member, and the overlapped insertion plate is inserted and fixed in the insertion groove formed in the end portion of the second structural member.
Furthermore, a concave / convex body which is a concave portion on one surface and a convex portion on the other surface is formed by press molding on the front and back sides of the insertion plate, and the superimposed insertion plate does not shift due to the concave / convex relationship of the concave / convex body. And since the concavo-convex body is arranged at equal distances on the left and right sides across the center line of the insertion plate and the concavo-convex direction is different, the concavo-convex body of the superimposed insertion plates is concavo-convex with the concavo-convex body of the mating insertion plate. Will be engaged.
[0006]
【The invention's effect】
With the above configuration, in the above-described invention, a metal fitting piece in which a halved portion and an insertion plate are formed is formed by press molding, and a desired two pieces are selected from these metal fitting pieces and assembled to join the metal fitting. Can be obtained. Therefore, unlike the conventional case, it is not necessary to integrate the pipe body and the insertion plate by welding, so that cost reduction and work efficiency can be improved. In addition, it is possible to prevent the displacement by engaging the overlapping insertion plates by the concavo-convex relationship by the concavo-convex body when assembling in order to assemble the same-shaped metal piece into the joint metal fitting, and also during the storage Since the concavo-convex bodies on the front surface and the back surface are fitted in a concavo-convex relationship, this contributes to space saving.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
DESCRIPTION OF EMBODIMENTS Hereinafter, an embodiment in which a joining member of a structural material of the present invention is embodied will be described based on the drawings. In the present embodiment, the top, bottom, left, and right refer to the respective directions in FIG. 1, and the left in FIG.
As shown in FIG. 6, the joining bracket is constructed by assembling a pair of bracket pieces 11. As shown in FIGS. 1 to 5, the metal piece 11 includes a substantially rectangular insertion plate 13 and a half portion 15 having a semicircular cross section formed in the lower portion thereof. As shown in FIGS. 2, 4, and 5, the half portion 15 is formed in a state of bulging forward with respect to the insertion plate 13, and the half portion 15 formed in a tapered shape is formed. The upper part is gradually connected to the lower part of the insertion plate 13. As shown in FIGS. 2 and 5, the back surface of the insertion plate 13 is flush with the edge 15 a of the half portion 15. Let L be the extension of this surface.
[0008]
A first through hole 16 is formed in the insertion plate 13 on the upper side at the center position. A second through hole 17 is formed in the half portion 15 toward the lower side at the center position. Semicircular cutouts 18 that are the same height as the second through holes 17 and are cut out in a semicircular shape are formed in the left and right edge portions 15 a of the half portion 15. Since the metal piece 11 having such a structure is obtained by press-molding a single alloy plate, the insertion plate 13 and the half portion 15 are integrally formed. An uneven body 19 is formed on the insertion plate 13 at a position equidistant from the left and right center lines C (see FIG. 1). The left concavo-convex body 19 protrudes to the front side of the insertion plate 13 and is recessed on the back side. On the contrary, the concavo-convex body 19 on the right side is recessed on the front side of the insertion plate 13 and protrudes on the back side. Accordingly, the metal piece 11 is asymmetrical, and the insertion plate 13 has a concavo-convex body 19 on one metal piece 11 side and a concavo-convex body 19 on the other metal piece 11 side. To be engaged in a relationship.
As shown in FIG. 6, the two selected metal pieces 11 are arranged to face each other so that the back side faces, the insertion plate 13 is overlapped, and the half portions 15 are combined to form a pipe body 21 having a circular cross section. Thus, a joining metal fitting is comprised by assembling the two metal fitting pieces 11. In this assembled state, the concavo-convex body 19 of the one metal piece 11 is engaged with the concavo-convex body 19 of the other metal piece 11, so that the vertical and horizontal shifts of both metal pieces 11 are eliminated. In this state, a straight line M connecting the center lines of the second through holes 17 of both halves 15 is in a relationship orthogonal to the extension line L. As shown in FIGS. 1 and 4, the left and right semicircular notches 18 are integrated with the semicircular notch 18 of the other metal piece 11 to form a pair of left and right circular third through holes 22. A straight line N connecting the center lines of the third through holes 22 is in a relationship orthogonal to the extension line L and the straight line M. Either the second through hole 17 or the third through hole 22 is used depending on the orientation of the insertion plate 13.
[0009]
Next, a method of using the thus configured joint fitting will be described. In the present embodiment, a case where the pipe column 26 is joined to the base 25 will be described as an example.
As shown in FIGS. 9A to 9C, an embedding hole 27 for embedding the pipe body 21 combined with the half portion 15 is formed on the upper surface of the base 25 on which the pipe column 26 is set. ing. A through hole 28 for the drift pin D communicating with the buried hole 27 is communicated with the buried hole 27 from the side surface of the base 25. A slit 29 is formed in the pipe column 26 on the end face of the tube 25 that is in contact with the upper surface of the base 25, and a through hole 28 for a drift pin D communicating with the slit 29 is communicated with the slit 29 from the side of the tube column 26. Yes.
As shown in FIG. 9A, the pipe body 21 combined with the half portion 15 is embedded in the embedded hole 27, and the drift pin D is driven and fixed from the through hole 28. In this state, the overlapped insertion plate 13 is disposed so as to protrude upward on the upper surface of the base 25. As shown in FIG. 9B, the slit 29 of the tube column 26 is arranged on the side of the insertion plate 13 and inserted from the side. Then, the drift pin D is driven and fixed from the through hole 28 (FIG. 9C).
[0010]
As described above, by configuring as in the present embodiment, the following effects are achieved.
(1) Since the metal piece 11 is obtained by press molding, it is not necessary to join the pipe body and the insertion plate by welding unlike the conventional joint metal fitting. Therefore, the manufacturing cost of the joint fitting is reduced. In addition, since welding is not performed, there is no variation in products, and the pipe body and the insertion plate are not accurately joined due to welding defects, and adjustment work on site is not required.
(2) Joining metal fittings can be obtained by selecting and assembling two unspecified metal pieces from the plurality of metal fitting pieces 11 having the same shape, and it is not necessary to prepare a plurality of types of metal fitting pieces, so the same lot is mass-produced. Manufacturing costs can be reduced.
(3) The concavo-convex body 19 is formed at equal distances from the center line of the insertion plate 13, and the concavo-convex direction of the concavo-convex body 19 is opposite to the front and back. Therefore, the uneven body 19 formed on the insertion plate 13 of the adjacent metal piece 11 stacked when assembled as a joint metal fitting as described above can be engaged with the other uneven body 19 in an uneven relationship. It has become. As a result, since the shift between the two metal pieces 11 is prevented, handling of the assembled fitting is convenient and workability is improved.
(4) When many metal pieces 11 before use are stored in the same direction (that is, the surface of the insertion plate 13 of one metal piece 11 and the back surface of the insertion plate 13 of the other metal piece 11 face each other) ), The concave and convex bodies 19 of the insertion plate 13 of the adjacent metal piece 11 can be configured to fit together in a concave-convex relationship, and they are hard to collapse and fit properly, contributing to space saving in the storage space.
(5) Although the flat insertion plate 13 alone is slightly inferior in strength as compared with the arched half portion 15, the strength is improved as a whole of the joining metal fitting because it is double-layered. Furthermore, since the uneven body 19 for preventing deviation is formed on the insertion plate 13, this acts as a kind of reinforcing rib, and the strength of the insertion plate 13 is further improved.
[0011]
Further, the above embodiment can be implemented with the following modifications.
The shape of the above-described embodiment is slightly changed to make the insertion plate 13 wider in the left-right direction as shown in FIG. 10, and two first through holes 16 of the insertion plate 13 are arranged at symmetrical positions. You may make it do.
-As shown in FIG. 11, the metal piece 11 without the uneven | corrugated body 19 of the metal piece 11 as a 1st and 2nd engaging part may be sufficient.
-The shape of the uneven | corrugated body 19 of the metal piece 11 is not limited to the said embodiment.
-Although the uneven body 19 in the said embodiment formed only one set of right and left, you may make it shape | mold multiple sets. By doing so, the strength of the insertion plate 13 is further improved.
In the above embodiment, the half portion 15 is configured to have a semicircular cross section. However, it suffices if the half portion 15 of the two metal pieces 11 is combined into a pipe shape. The shape of the split portion is not limited to the above embodiment. For example, as shown in FIGS. 12 and 13, the half portion 15 may be formed in an L-shaped cross section. Further, as can be seen from FIGS. 12 and 13, the shape of the metal piece 11 need not be symmetrical.
In the above embodiment, the uneven body 19 is formed on the insertion plate 13 of the metal piece 11 as the first and second engaging portions. However, the formation position and shape of the concavo-convex body are not limited to this. In the embodiment shown in FIGS. 12 and 13, the engagement piece 31 and the engaged portion 32 are formed on the halved portion 15 side as a shift prevention means. The engagement piece 31 on the one metal piece 11 side is engaged with the engaged portion 32 on the other metal piece 11 side to prevent displacement.
In the above embodiment, the base 25 and the pipe column 26 are taken as examples. However, the present invention can be applied to all other situations where the side of the first structural material is in contact with the small edge of the second structural material. It is possible. Moreover, the structural material using this joining metal fitting may be a peeled material or a laminated material.
-The number and position of the 1st-3rd through-holes 16, 17, and 22 in each said embodiment can be changed suitably.
In the above embodiment, the joint fitting is fixed by the drift pin D, but may be fixed by other fixing means, for example, a screw bolt.
In addition, the present invention can be freely modified and implemented without departing from the spirit of the present invention.
[0012]
[Brief description of the drawings]
FIG. 1 is a front view of a metal piece that constitutes a joint metal according to an embodiment of the present invention.
FIG. 2 is a longitudinal sectional view of the metal piece of FIG.
FIG. 3 is a rear view of the metal piece of the same embodiment.
FIG. 4 is a side view of the metal piece of the same embodiment.
FIG. 5 is a bottom view of the metal piece of the same embodiment.
FIG. 6 is a plan view of a metal piece of the same embodiment.
FIG. 7 is a perspective view of a metal piece of the same embodiment.
FIG. 8 is an exploded perspective view of a joining metal fitting using a metal piece according to the same embodiment.
FIGS. 9A and 9B are diagrams illustrating a method of using the joint fitting according to the same embodiment, in which FIG. 9A is an explanatory diagram for explaining a fixing method to a base, and FIG. 9B is a method for fixing a tube column to the joint fitting fixed to the base; Explanatory drawing explaining (c), explanatory drawing explaining the state which joining was completed.
FIG. 10 is a perspective view of a metal piece of another embodiment.
FIG. 11 is a perspective view of a metal piece of another embodiment.
FIG. 12 is a perspective view of a metal piece of another embodiment.
13 is a perspective view of a joint metal fitting assembled from the metal piece pieces of FIG. 12. FIG.
FIGS. 14A and 14B are explanatory views of a conventional method of using a joint fitting, wherein FIG. 14A is an explanatory diagram for explaining a fixing method to a base, and FIG. 14B is a diagram for explaining a method of fixing a tube column to a joint fitting fixed to the base. Explanatory drawing to explain, (c) is explanatory drawing explaining the state which joining was completed.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 11 ... Metal fitting piece, 13 ... Insertion board, 15 ... Half part, 19 ... Uneven body, 31 ... Engagement piece, 32 ... Engaged part.

Claims (1)

The pipe body is composed of an insertion plate formed on one end of the pipe body, and the pipe body is embedded and fixed in the first structural material, and the insertion groove formed in the end portion of the second structural material. a metal junction fittings for joining the two structural members abutted the butt portion of the second structural member to the side of the first structural member by inserting and fixing the same insertion plate, single A metal piece is formed by press-molding a sheet of metal plate to form a half part obtained by halving the pipe body and the insertion plate, and the same half plate part is overlapped with the same insertion plate of the two metal parts. In the joint fitting to be used to compose the pipe body by combining
The insertion plate is formed with a concave portion on one side and a convex portion on the other side formed by press molding as a slip prevention means, and the concave and convex portions are formed on the left and right sides of the center line of the insertion plate. A joining metal fitting characterized in that the concave and convex directions of the corresponding concave and convex bodies on the left and right sides are different from each other and are arranged at a distance .

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