JP3044216U - Fittings for wooden buildings - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To reduce the amount of metal panel used per metal fitting to reduce the manufacturing cost, and at the same time, to facilitate the positioning at the time of joint connection and stably support the beam load. Let it. SOLUTION: It is provided with two opposing side walls, a back plate communicating an edge of the side wall, and a bottom plate supporting a bottom edge of the side wall and the back plate, and at least one of the side walls and the back plate have an appropriate number. Bolt holes. In addition, in order to suppress the amount of metal panels used, the amount of forward projection of the side wall from the back plate may be increased on one side and reduced on the other side, and the planar shape of the joint fitting may be substantially L-shaped. The second device has a bottom plate and a back plate,
An edge is joined to the bottom plate and the back plate, and a single side wall rising vertically from the bottom plate is provided.

Description

[Detailed description of the invention]

[0001]

[Industrial applications]

 The present invention relates to a fitting for a wooden building.

[0002]

[Prior art]

 There are various traditional joint structures and joint structures for joining members in wooden construction, but recently, for the purpose of reducing the work load and reducing the construction cost, joining fittings that do not require complicated member processing May be used.

FIG. 7 shows an example of a conventional joint fitting (joint fitting) for joining a column and a beam. The joint fitting 1 is formed by bending both sides of a metal plate at a substantially right angle to form a back plate 2 and two parallel side walls 3 and 4. The upper edge portion and the front edge portion of the side walls 3 and 4. The guide grooves 5 and 6 for the bolts are formed in each of them. Reference numerals 7 and 8 are pin holes.

As shown in FIG. 7, the guide grooves 5 and 6 guide the bolts 10 and 11 that are provided in advance in the joint portion of the beam 9, and the bolts 10 on the beam side are inserted into the guide grooves 5 and 6. , 11 are inserted and fixed to position and fix the beam. Incidentally, the beam joint is provided with slits 15 and 16 for inserting the side walls 3 and 4. Then, with the bolts 10 and 11 locked to the metal fitting 1, a pin (not shown) is driven into the pin holes 12 and 13 to complete the joining of the column 14 and the beam 9. This joint fitting 1 is characterized in that the bolts 10 and 11 provided on the beam joint are guided by the guide grooves 5 and 6 to facilitate positioning.

[0005]

[Problems to be solved by the device]

 By the way, such a conventional joint fitting has a problem that the molding cost increases. The reason is that the guide grooves 5 and 6 are formed in the two opposing side walls 3 and 4, and the bolts 10 and 11 of the beam joint are hung over, so the shape is inevitably U-shaped in plan view. This is because the opposed side walls 3 and 4 have substantially the same size and shape, and the amount of metal panel per piece cannot be reduced. For example, the metal fitting 1 cannot have an L-shaped planar shape. This is because if one side wall is omitted, one guide groove for supporting the bolts 10 and 11 will be lost. Moreover, since the guide grooves 5 and 6 are formed by shifting the positions in the front-rear direction, the wall panels 3 and 4 must have a certain size or more. A considerable number of fittings are used in wooden construction, but if the cost of metal fittings increases, it will be reflected in the construction cost, which will be an obstacle to lowering the construction cost.

Further, in the conventional fitting 1, the two bolts 10 and 11 provided in the beam joint are inserted into the guide grooves 5 and 6 which are the counterparts, but the bolts 10 and 11 are attached from the outside. Since it cannot be seen directly, the position is judged by the head of the bolt where the joint is exposed, and the bolt is fitted into the guide grooves 5 and 6. It is difficult to fit this work properly if you are not skilled. This is because the bolts 10 and 11 are not directly visible, and the guide grooves 5 and 6 are not visible when the side walls 3 and 4 enter the slits 15 and 16 formed in the joint. In addition, since the two bolts are locked to support the weight of the beam, there are some aspects that are not sufficiently stable.

Therefore, an object of the present invention is to reduce the amount of metal panel used per unit and to reduce the molding cost, and at the same time, to facilitate the positioning at the time of joining the joints, The point is that the weight can be stably supported.

[0008]

[Means for Solving the Problems]

 In order to achieve the above object, a joint fitting according to the present invention comprises two opposing side walls, a back plate that connects the end edges of the side walls, and a bottom plate that supports the side walls and the bottom edge of the back plate. An appropriate number of bolt holes are provided in at least one of the side walls and the back plate. In addition, in order to reduce the amount of metal panel used, the amount of front projection of the side wall from the back plate may be large in one side and small in the other side, and the joint metal fitting may have a substantially L-shaped planar shape. A second invention is provided with a bottom plate and a back plate, and is provided with one substantially rectangular side wall whose edges are joined to the bottom plate and the back plate and which stand vertically from the bottom plate.

[0009]

[Action]

 The joint fitting according to the first invention comprises two facing side walls, a back plate connecting the end edges of the side walls, and a bottom plate supporting the side walls and the bottom edges of the back plate. In this case, the shape of the metal fitting is a substantially U-shape in plan view or an L-shape, and the joint can be positioned by simply placing the beam joint on the bottom plate of the metal fitting. The bottom plate is always visible, and all you have to do is put a joint on it, so even beginners who are not familiar with carpentry work can easily position the connections. Also, since the bottom plate is provided, unlike the conventional two-bolt locking, the weight of the beam (including other horizontal members) can be stably supported by the bottom plate. In this respect, the metal fitting of claim 3 is also the same.

The joint fitting is usually fixed to the column. For this reason, bolt holes are provided in the back plate in advance. The bolt holes mentioned here are not necessarily limited to fixing the metal fittings by bolting. Of course, the fittings may be fixed to the pillars with screws or nails, in which case the bolt holes should be designed with a small diameter.

After the beam joint is placed on the metal fitting bottom plate and positioned, the beam and the joint metal fitting are fixed by driving a bolt (or pin) into the joint portion. Therefore, at least one of the side walls is provided with a predetermined number of bolt holes. The reason why the bolt holes are not provided on both of the side walls but only on one side is that it is possible that one of the side walls is made smaller to have a substantially L shape in a plane, and the metal fitting according to claim 2 corresponds thereto. To do.

According to a second aspect of the present invention, the fitting has a side wall that projects forward from the back plate such that one side is large and the other side is small, and the planar shape is substantially L-shaped. . The joint fittings that support the joint do not necessarily increase in rigidity and stability depending on the number of side walls. Therefore, in the joint fitting according to the second aspect, the bolt is inserted into only one side wall, and the beam and the fitting are fixed by only one side wall. The other small side wall functions as a guide member that suppresses lateral deflection of the beam during positioning. Therefore, it is not necessary to provide a bolt hole in this smaller side wall. According to this metal fitting structure, one side wall can be made smaller, so that the molding cost can be further reduced.

The joint fitting according to the third aspect is a simpler side wall, and is composed of only one side wall that stands upright from the bottom plate while being joined to the back plate and the bottom plate. Since the bottom plate is provided, the ease of positioning at the time of joining the joints is the same as that of the metal fitting according to the first and second aspects, and the point that the weight of the beam can be stably supported is also the same. However, since only one side wall is used, the amount of metal panel used is further reduced and the molding cost is reduced. The slit forming on the joint side is also easy because the shape of the metal fitting is simplified. It is fixed to the beam by driving bolts into the bolt holes provided on the side wall. The shape of the side wall will be approximately rectangular so that the number of bolts can be increased appropriately. The size of the side wall does not depend on the size of the bottom plate, and may be, for example, a size that protrudes forward of the bottom plate. This is because the position of the bolts that tighten and fix the joint is shifted back and forth to ensure stable support.

It is desirable that the bottom plate, the back plate, and the side wall are all formed into a square or a rectangle. This is because it is easy to form, and in the case of the side wall, there are advantages such as being able to shift and fix the position of the bolt.

The side wall of the metal fitting according to the third aspect may be erected on the center portion of the bottom plate or on the edge portion of the bottom plate. In either case, the lower edge of the side wall is joined to the bottom plate, and the rear edge of the side wall is joined to the back plate, so that the strength can be kept substantially the same.

It is needless to say that the joint fitting according to claim 1 or 2 can also be used as a connecting fitting for joining beams to each other. In that case, the back plates may be fixed to each other by appropriate means (eg welding), the side walls may be inserted into the slits formed in the beam joint, and the joints may be tightened and fixed by bolts (screws). is there. In the above description, the beam-to-column connection and the beam-to-beam connection are explained. However, the joint fitting according to the present invention is used in each part of a wooden construction, such as a connection between a column and a horizontal material, or a horizontal material. it can.

[0017]

【Example】

 Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. 1 and 2 are perspective views showing an example of a fitting according to the present invention. As shown in the figure, the metal fitting 21 includes two rectangular side walls 22 and 23 facing each other, a rectangular back plate 24 connecting the edges of the side walls 22 and 23, and the bottoms of the side walls 22 and 23 and the back plate 24. A rectangular bottom plate 25 that supports the edges is provided, and the side walls 22, 23 and the back plate 24 are provided with a predetermined number of bolt holes 26 to 31.

On the other hand, two slits 41 and 42 are formed in the upward and downward directions at the end of the joint of the horizontal member 36 which is joined to the column 35 by using the metal fitting 21, and these slits 41 and 42 are formed. The tip of the central portion 43 of the sandwiched member is cut off and retracted, and further, bolt holes 45 and 46 are formed to horizontally penetrate the horizontal member 36.

The metal fitting 21 is formed using, for example, a steel plate panel. In this embodiment, the height dimension from the upper surface of the bottom plate 25 to the upper edges of the side walls 22 and 23 is made to match the height dimension of the horizontal member 36. This is to improve the support strength of the metal fitting 21 within a range in which the metal fitting does not project from the upper surface of the horizontal member.

In this embodiment, two bolt holes 26 to 29 (45 to 46) are provided on each of the left and right side walls so that the horizontal member 36 can be supported by two bolts. Depending on the height of the metal fitting or the required joining strength, one or three or more pieces may be provided on each side wall, and the horizontal member 36 may be joined with the required number of bolts. The horizontal member 36 includes beams, members such as girders and body differences, and the joint fitting of the present invention can be used as a joint (joint) fitting for each of these horizontal members.

The spacing between the slits 41 and 42 formed in the joint of the horizontal member 36 is substantially the same as the spacing between the metal fitting side walls 22 and 23 so that the side wall 22 fits into the slit 41 and the side wall 23 fits into the slit 42, respectively. Width. The groove width of each slit 41, 42 is set to be substantially the same as the wall thickness of the side walls 22, 23. This is because the side walls 22 and 23 of the metal fittings are sandwiched in the slits 41 and 42 to reliably prevent the horizontal cross member 36 from lateral deviation.

The bolt holes 45 and 46 on the side surface of the horizontal member are formed so as to correspond to the bolt holes 26 to 29 on the side wall of the metal fitting. That is, when the member central portion 43 is placed on the metal fitting bottom plate 25 and the tips of the horizontal members 36 (left and right members 47, 48) are brought into contact with the side surfaces of the column as shown in FIG. It is possible to fit the bolt holes 45 and the bolt holes 26 and 28 of the metal fitting, and the bolt holes 46 and the bolt holes 27 and 29 so as to fit the joining bolts (not shown). Further, at this time, a gap S is formed between the tip of the member central portion 43 of the horizontal member 36 and the metal fitting back plate 24, and a bolt for fixing the metal fitting (the bolt holes 30, 31 of the back plate) is provided in the gap S. It is possible to house the head (not shown). The notch processing of the central portion 43 of the member forming the gap S and the formation of the slits 41 and 42 can be performed by using an ordinary electric tool or the like. Recently, tools that can perform both processes at the same time have been known.

FIG. 3 is a perspective view showing another embodiment of the joint fitting according to the present invention. Similar to the metal fitting 21, the metal fitting 51 has two side walls 52 and 53, a back plate 54, side walls 52 and 53, and a bottom plate 55 that supports the bottom edge of the back plate 54. The amount of front projection from the back plate is larger in one side (53) and smaller in the other side (52), and the flat shape of the metal fitting is substantially L-shaped. Bolt holes 56 and 57 for joining the horizontal member and the metal fitting 51 are provided in the long side wall 53. According to such a metal fitting structure, one side wall 52 is made small, so that the cost of forming the metal fitting is reduced.

FIG. 4 is a view showing an example of a joint fitting according to the second invention. The metal fitting 61 includes a bottom plate 64 and a back plate 63, and one side wall 62 whose edges are joined to the bottom plate 64 and the back plate 63 and which rises vertically from the central portion of the bottom plate 64. The side wall 62 is provided with a bolt hole 65 that enables connection with the horizontal member 36. On the left and right of the back plate 63 with the side wall 62 sandwiched, bolt holes for fixing the metal fitting 61 to the pillar 35 are formed. 66 is provided.

The joint of the horizontal member 36a using the metal fitting 61 has a slit 67 formed at the central position of the member corresponding to the position of the side wall 62, and a gap for accommodating the head of the metal fitting fixing bolt. In order to form S, the left and right sides of the joining-side end of the slit 67 are cut out so as to be set back from the left and right portions. The side wall 62 may be arranged at the side edge of the metal fitting as shown in FIG. However, in the case of such a metal fitting structure 71, the slits 77 of the horizontal bridge member 36b are formed by being laterally shifted corresponding to the side wall position. In FIG. 5, reference numeral 73 is a back plate, 74 is a bottom plate, and 75 and 76 are bolt holes.

FIG. 6 is a view showing another embodiment of the joint fitting according to the second invention. This metal fitting 81 constitutes a joint metal fitting for joining horizontal members, for example, beams, and is made by integrally fixing two metal fittings 51 shown in FIG. 3 back to back. In order to integrate the two metal fittings 51, 51a, the back plates 54, 54a of the two metal fittings are fixed, for example, by welding. According to the metal fitting 81, the side walls 52, 52a, 53, 53a are respectively inserted into the slits 41, 41a, 42, 42a formed at the end portions of the cross members 36c, 36d, and the bolt holes 82-85 are inserted. , 82a to 85a, the joints can be fixed by tightening and fixing the joint with bolts (or screws) or the like. It should be noted that, even if the metal fittings 21, 61, 71 shown in FIGS. 1 to 2, 4 and 5 are used, a joint metal fitting for joining the horizontal members can be similarly constructed.

[0027]

[Effect of the invention]

 As described above, according to the joint fitting for a wooden building according to the present invention, the amount of metal panel used per piece is reduced to reduce the manufacturing cost, and at the same time, the positioning at the time of joining joints is made easier. Therefore, it becomes possible to stably support the weight of the horizontal members.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an example of a joint fitting of a wooden building according to the present invention.

FIG. 2 is a perspective view showing a state in which a column and a horizontal member are joined using the joint fitting.

FIG. 3 is a perspective view showing another example of the joint fitting of the wooden building according to the present invention.

FIG. 4 is a perspective view showing still another example of the joint fitting of the wooden building according to the present invention.

FIG. 5 is a perspective view showing still another example of the joint fitting of the wooden building according to the present invention.

FIG. 6 is a perspective view showing still another example of the joint fitting of the wooden building according to the present invention.

FIG. 7 is a perspective view showing an example of a conventional fitting.

[Explanation of symbols]

21, 51, 61, 71, 81 Joint fitting 22, 23, 52, 53, 62 Side wall 24, 54, 63, 73 Back plate 25, 55, 64, 74 Bottom plate 26-31, 45, 46, 56, 57, 65,66,7
5,76,82-85,82a-85a
Bolt hole 35 Pillar 36, 36a to 36d Horizontal member 41, 42, 67, 77 Slit 43 Member central portion S Gap

Claims (3)

[Utility model registration claims] 1. An apparatus comprising: two opposing side walls; a back plate communicating an edge of the side wall; and a bottom plate supporting a bottom edge of the side wall and the back plate. A fitting for a wooden building, wherein a number of bolt holes are provided. 2. A wooden building according to claim 1, wherein the amount of forward projection of the side wall from the back plate is such that one is large and the other is small, and the plan shape of the joint fitting is substantially L-shaped. Fitting fittings. 3. A bottom plate and a back plate, wherein the bottom plate and the back plate each have an edge joined thereto and one side wall rising vertically from the bottom plate, the side wall having a substantially rectangular shape, and a predetermined number of side walls. A fitting for a wooden building, characterized by having bolt holes.