JP6965138B2 - Field connection hardware - Google Patents

Description

The present invention relates to a field edge connecting hardware that connects a plurality of field edges constituting a ceiling.

Japanese Patent Application Laid-Open No. 60-130914 describes a ceiling base material connecting metal fitting for connecting a plurality of rod-shaped channel members constituting the ceiling. A ceiling base material is attached to the end of each channel member, and the ceiling base material connecting metal fitting connects a plurality of ceiling base materials. The ceiling base material connecting metal fittings are provided with a plurality of holding portions, and each holding portion projects vertically and horizontally along each ceiling base material. A plate covering the ceiling base material connecting metal fittings is attached to the ceiling base material connecting metal fittings from below. The plate is provided with a flat plate-shaped substrate and a plurality of locking pieces protruding upward from the substrate. Further, the ceiling base material connecting metal fitting has a plurality of L-shaped holes on the upper surface thereof.

In the construction method using this ceiling base material connecting metal fitting, a ceiling base material is attached to the end of each channel member, and each ceiling base material is inserted and engaged with each holding portion to connect a plurality of channel members. NS. Then, a locking piece of the plate is inserted into each L-shaped hole of the ceiling base material connecting metal fitting from below, and each of the inserted locking pieces is bent at the upper part of the ceiling base material connecting metal fitting to form the plate. Is attached to the ceiling base material connecting bracket.

Jitsukaisho 60-130914

In the above-mentioned construction method, it is necessary to attach the ceiling base material to the end of each channel member, then attach each ceiling base material to the ceiling base material connecting metal fitting, and further attach the backing plate to the ceiling base material connecting metal fitting. .. Therefore, there is a problem that the workability is not good because the work is complicated and it takes time to attach each member. Further, particularly in recent years, safety against earthquakes and the like has been strongly demanded, and it is required that each member can be suppressed from falling even if an earthquake or the like occurs.

An object of the present invention is to provide a field edge connecting hardware capable of improving workability and suppressing falling.

The field edge connecting hardware according to the present invention is a field edge connecting hardware that connects the first field edge and the second field edge extending in the direction intersecting the first field edge from the first field edge. A base portion facing the first field edge and the second field edge, a first fitting portion extending from the base portion and fitting into the first field edge, and a second fitting portion extending from the base portion and fitting into the second field edge. It is located between the joint part, the first fitting part and the second fitting part, and can be bent with respect to the base part. In the bent state, the side surface of the first field edge and the second field A field edge side surface contact portion that contacts the side surface of the edge is provided.

The field edge connecting hardware has a base portion facing the first field edge and the second field edge, a first fitting portion extending from the base portion and fitting to the first field edge, and a second fitting portion extending from the base portion. It is provided with a second fitting portion that fits on the field edge. Therefore, the base portion is opposed to the first field edge and the second field edge, the first fitting portion extending from the base portion is fitted to the first field edge, and the second fitting portion extending from the base portion is second. By fitting to the field edge, the field edge connecting hardware can be easily attached to the first field edge and the second field edge. Therefore, it is possible to improve the workability of the work of attaching the field edge connecting hardware to connect the first field edge and the second field edge. Further, the field edge connecting hardware is provided with a field edge side contact portion that can be bent between the first fitting portion and the second fitting portion, and the field edge side contact portion is in a bent state in the first field. It abuts on the side of the edge and the side of the second field edge. Therefore, after fitting the first fitting portion to the first field edge and fitting the second fitting portion to the second field edge, the field edge side contact portion becomes the side surface of the first field edge and the second field. By abutting on the side surface of the edge, it is possible to suppress the opening of the first field edge and the second field edge after fitting. That is, since the field edge side contact portion abuts on each side surface of the first field edge and the second field edge from the outside, the first field edge and the second field edge can be pressed from the outside. The opening of the field edge and the second field edge is suppressed. Therefore, by suppressing the opening of the first field edge and the second field edge, the fitting of the first fitting portion with respect to the first field edge and the fitting of the second fitting portion with respect to the second field edge can be disengaged. The sex can be reduced. As a result, the strength of the intersection of the first field edge and the second field edge can be increased, and the fall of the first field edge and the second field edge can be suppressed.

Further, the field edge side contact portion has a rectangular plate shape, and one of the pair of sides of the field edge side contact portion facing each other abuts on the side surface of the first field edge and the other is in contact with the side surface of the first field edge. It may come into contact with the side surface of the. In this case, since the field edge side contact portion has a rectangular plate shape, the shape of the field edge connection hardware can be simplified. Further, of the sides of the field edge side contact portions facing each other, one side contacts the side surface of the first field edge, and the other side contacts the side surface of the second field edge. Therefore, the opening of the first field edge and the second field edge can be reliably suppressed by pressing the first field edge and the second field edge by each side of the field edge side contact portion. Therefore, it is possible to reliably suppress the fall of the first field edge and the second field edge while maintaining a simple configuration.

According to the present invention, workability can be improved and dropping can be suppressed.

It is a perspective view which shows the field edge connection hardware, the 1st field edge and the 2nd field edge which concerns on 1st Embodiment. It is a perspective view which shows the field edge connection hardware of FIG. FIG. 5 is a cross-sectional view showing a state in which the fitting portion of the field edge connecting hardware of FIG. 1 is fitted to the first field edge or the second field edge. It is an enlarged view of the field edge side contact portion of the field edge connection hardware of FIG. It is a perspective view which shows the state which the field edge connecting metal fitting is fitted in the 1st field edge and the 2nd field edge. It is a perspective view which shows the field edge connection hardware which concerns on 2nd Embodiment. FIG. 6A is a plan view showing the field edge connecting hardware, the first field edge, and the second field edge of FIG. (B) is a vertical cross-sectional view showing a protruding piece of a field edge connecting hardware and a first field edge. It is a perspective view which shows the field edge connection hardware which concerns on 3rd Embodiment. It is a top view which shows the field edge connection hardware of FIG.

Hereinafter, embodiments of the field edge connecting hardware according to the present invention will be described with reference to the drawings. In the description of the drawings, the same or corresponding elements are designated by the same reference numerals, and duplicate description will be omitted as appropriate.

(First Embodiment)
FIG. 1 is a perspective view showing a field edge connecting hardware 1 according to the first embodiment. As shown in FIG. 1, the field edge connecting hardware 1 is provided in, for example, a ceiling structure provided with a plurality of ceiling surface materials 2, and the ceiling structure includes a first field edge 3 and a first field edge. It has a second field edge 4 that intersects with 3. The first field edge 3 and the second field edge 4 are arranged in the same plane, for example, and the height of the first field edge 3 is the same as the height of the second field edge 4.

Hereinafter, the direction in which the first field edge 3 extends is referred to as the first direction D1, and the direction in which the second field edge 4 extends is referred to as the second direction D2. For example, both the first field edge 3 and the second field edge 4 are screwed to the ceiling surface material 2, and each ceiling surface material 2 has a square shape. As an example, the ceiling surface material 2 may be a ceiling material provided with a non-woven fabric base material made of polyester, and in this case, the weight can be reduced as compared with the conventional ceiling material.

The field edge connecting hardware 1 is arranged at the intersection of the first field edge 3 and the second field edge 4. The field edge connecting hardware 1 is capable of exerting a function as a flint of the first field edge 3 and the second field edge 4, and can reinforce the first field edge 3 and the second field edge 4. It is possible. Therefore, even if the lightweight ceiling surface material 2 as described above is used, the effect of increasing the surface rigidity of the ceiling structure can be obtained by the field edge connecting hardware 1.

The field edge connecting hardware 1 connects the first field edge 3 and the second field edge 4 at the intersection of the first field edge 3 and the second field edge 4. For example, the first field edge 3 is a through field edge extending in the first direction D1, and the second field edge 4 is divided into two at the intersection. In this case, the end portion of each second field edge 4 in the second direction D2 faces the side surface 3a of the first field edge 3, and the field edge connecting hardware 1 is the end portion of the first second field edge 4 and the second field edge 4. The 1 field edge 3 and the end of the other 2nd field edge 4 are connected.

The cross section of the first field edge 3 when cut along a plane orthogonal to the longitudinal direction thereof has a shape that opens upward. That is, the first field edge 3 has a pair of side surfaces 3a and a bottom surface 3b that connects the pair of side surfaces 3a to each other, and has a U-shape that is opened upward by the pair of side surface 3a and the bottom surface 3b. .. Further, the first field edge 3 includes a folded-back portion 3c that is folded back inside and downward in the width direction of the first field edge 3 at the upper end thereof. The folded-back portions 3c are provided in pairs in the width direction of the first field edge 3. The shape of the second field edge 4 is, for example, the same as the shape of the first field edge 3, and the second field edge 4 has the same side surface 4a, bottom surface 4b, and folded portion 4c as the first field edge 3. Be prepared.

The field edge connecting hardware 1 includes a base portion 11 located above the first field edge 3 and the second field edge 4, a plurality of holes 12 penetrating the base portion 11, and a plurality of holes bent from the base portion 11. It includes a first fitting portion 13 and a second fitting portion 14, and a plurality of field edge side contact portions 15 that are bendable with respect to the base portion 11. The base portion 11 forms a plane extending in the first direction D1 and the second direction D2, and extends along the ceiling surface material 2. For example, the base portion 11 may have a shape that does not have a protruding portion. In this case, the shape of the field edge connecting hardware 1 can be simplified.

Further, in the present specification, the field edge side contact portion refers to a portion that abuts on the side surface of the field edge and a portion that can abut on the side surface of the field edge (for example, the side surface of the field edge through a slight gap). Includes both parts). That is, the field edge side contact portion may not only contact the side surface of the field edge during construction, but also contact the side surface of the field edge during construction and may contact the side surface of the field edge when vibration occurs. Includes parts.

As shown in FIGS. 1 and 2, the base portion 11 has a flat plate shape. The base portion 11 has an octagonal shape, and the four end sides 11a of the base portion 11 are inclined in both the first direction D1 and the second direction D2. The other four end edges 11b of the base portion 11 extend in the width direction of the first field edge 3 and the second field edge 4. The end side 11a is a side straddling between the first field edge 3 and the second field edge 4, and the end side 11b is inserted between the pair of side surfaces 3a and 4a. The end side 11a extends longer than the end side 11b, and the angle formed by the end side 11a and the end side 11b is, for example, 135 °.

Four holes 12 are formed in the base portion 11, and for example, each hole 12 has a right-angled isosceles triangle shape with rounded corners. The hole portion 12 is a through hole penetrating the base portion 11, and is provided for reducing the weight of the field edge connecting hardware 1. The right-angled portion 12a of each hole portion 12 is directed toward the center 11c of the base portion 11, and the hypotenuse portion 12b of each hole portion 12 extends along the end side 11a. Each equal side 12c of the hole portion 12 extends along the first field edge 3 or the second field edge 4, and the upper ends of the side surfaces 3a and 4a face each other below the equal side 12c. Of the four holes 12, two holes 12 located on a straight line passing through the center 11c are provided at positions symmetrical with respect to the center 11c, and the remaining two holes 12 are also provided with respect to the center 11c. It is provided at a position symmetrical to each other.

The first fitting portion 13 or the second fitting portion 14 extends downward from each end side 11b of the base portion 11. The base portion 11 is provided with two first fitting portions 13 and two second fitting portions 14. Each first fitting portion 13 fits into the first field edge 3. Further, of the two second fitting portions 14, one second fitting portion 14 is fitted to one second field edge 4, and the remaining one second fitting portion 14 is the other second field edge. Fits in 4.

As shown in FIG. 3, each first fitting portion 13 has a shape of fitting between a pair of folded portions 3c of the first field edge 3. Specifically, each of the first fitting portions 13 includes a pair of straight portions 13a extending downward from the base portion 11, an expansion portion 13b extending from the lower end of each straight portion 13a, and a semicircle downward from each expansion portion 13b. It includes a curved portion 13c that curves in a circular shape. Each of the first fitting portions 13 is fitted to the first field edge 3 from above by the expansion portion 13b and the curved portion 13c entering below the pair of folded portions 3c.

Each second fitting portion 14 has a shape of being fitted between a pair of folded portions 4c of the second field edge 4. The shape of the second fitting portion 14 is, for example, the same as the shape of the first fitting portion 13. In this case, the second fitting portion 14 includes a pair of straight portions 14a, a pair of expansion portions 14b, and a curved portion 14c, as in the case of the first fitting portion 13, and each expansion portion 14b and the curved portion 14c are paired. By entering below the folded-back portion 4c, the second field edge 4 is fitted from above.

As shown in FIGS. 1, 2 and 4, the base portion 11 is provided with four field edge side contact portions 15. Each field edge side surface contact portion 15 is provided on each end side 11a. Each field edge side contact portion 15 is provided to suppress the opening of the first field edge 3 and the second field edge 4. Specifically, when the fitting portions 13 and 14 are fitted to the U-shaped field edges 3 and 4 that open upward, the fitting portions 13 and 14 are inserted between the pair of side surfaces 3a and 4a. Therefore, an opening may occur between the pair of side surfaces 3a and 4a. If the degree of this opening is large, the first field edge 3 or the second field edge 4 may come off from the fitting portions 13 and 14 and fall off after fitting. In order to avoid such a situation, the field edge connecting hardware 1 includes a field edge side contact portion 15 that suppresses the opening between the pair of side surfaces 3a and 4a.

Each field edge side contact portion 15 projects in a rectangular shape from the end side 11a of the base portion 11. A bent portion 16 is provided between the field edge side surface contact portion 15 and the base portion 11, and the field edge side surface contact portion 15 is bendable along the bent portion 16. The bent portion 16 extends linearly along the end side 11a. The bent portion 16 has, for example, a perforation. As a specific example, the bent portion 16 has a plurality of slits 16a extending along the end side 11a and a plurality of connecting portions 16b extending along the end side 11a. The slits 16a and the connecting portions 16b are formed alternately.

Each field edge side contact portion 15 has a rectangular plate shape. The field edge side surface contact portion 15 has a contact end portion 15a which is a pair of sides extending from the bent portion 16 and a connection end portion 15b which connects between the pair of contact end portions 15a. Each contact end portion 15a forms a rectangular short side of the field edge side contact portion 15, and the connection end portion 15b and the bent portion 16 form a rectangular long side of the field edge side surface contact portion 15. There is. The contact end portion 15a is a portion that abuts on the side surface 3a of the first field edge 3 or the side surface 4a of the second field edge 4 in a state where the field edge side surface contact portion 15 is bent. The length of the contact end portion 15a is shorter than the height of the side surfaces 3a and 4a, for example.

Next, a field edge connection method for connecting the first field edge 3 and the second field edge 4 using the field edge connection hardware 1 will be described. In the present embodiment, the field edge connecting hardware 1 connects two second field edges 4 and one first field edge 3 passing between two second field edges 4. First, as shown in FIG. 5, the field edge connecting hardware 1 is fitted into the first field edge 3 and the second field edge 4 from above in the vertical direction. At this time, the two first fitting portions 13 are fitted to the first field edge 3. Then, one of the two second fitting portions 14 is fitted to one second field edge 4, and the other one is fitted to the other second field edge 4.

Specifically, the expansion portions 13b, 14b and the curved portions 13c, 14c of the fitting portions 13, 14 enter below the folded portions 3c, 4c of the first field edge 3 and the second field edge 4, respectively. The fitting portions 13 and 14 are fitted to the first field edge 3 and the second field edge 4, respectively. At the time of fitting each of the fitting portions 13 and 14, the field edge side contact portion 15 is not bent and extends on the same plane as the base portion 11, so that the field edge side contact portion 15 contacts. Part 15 does not get in the way. Further, when the fitting portions 13 and 14 are fitted, the fitting portions 13 and 14 are inserted between the pair of side surfaces 3a and 4a, so that an opening may occur between the pair of side surfaces 3a and 4a.

Next, as shown in FIG. 1, each field edge side surface contact portion 15 is bent to bring each field edge side surface contact portion 15 into contact with the first field edge 3 and the second field edge 4. Specifically, each field edge side surface contact portion 15 is bent downward with respect to the base portion 11, and each of the pair of contact end portions 15a is brought into contact with the side surfaces 3a and 4a. By bringing the contact end portions 15a into contact with the side surfaces 3a and 4a in this way, it is possible to suppress the opening that occurs between the pair of side surfaces 3a and 4a. As described above, by bending each field edge side contact portion 15 downward from the bent portion 16, the work of attaching the field edge connecting hardware 1 to the first field edge 3 and the second field edge 4 is completed. The installation work of the field edge connecting hardware 1 can be performed only by hand without using a tool or the like.

Next, the action and effect obtained from the field edge connecting hardware 1 according to the present embodiment will be described in more detail. The field edge connecting hardware 1 includes a base portion 11 facing the first field edge 3 and the second field edge 4, a first fitting portion 13 extending from the base portion 11 and fitting to the first field edge 3, and a base. A second fitting portion 14 that extends from the portion 11 and fits into the second field edge 4 is provided. Therefore, the base portion 11 is opposed to the first field edge 3 and the second field edge 4, and the first fitting portion 13 extending from the base portion 11 is fitted to the first field edge 3 and extends from the base portion 11. 2 By fitting the fitting portion 14 to the second field edge 4, the field edge connecting hardware 1 can be easily attached to the first field edge 3 and the second field edge 4. Therefore, it is possible to improve the workability of the work of attaching the field edge connecting hardware 1 and connecting the first field edge 3 and the second field edge 4.

Further, the field edge connecting hardware 1 includes a field edge side contact portion 15 that can be bent between the first fitting portion 13 and the second fitting portion 14, and the field edge side contact portion 15 is bent. In this state, it abuts on the side surface 3a of the first field edge 3 and the side surface 4a of the second field edge 4. Therefore, after fitting the first fitting portion 13 to the first field edge 3 and fitting the second fitting portion 14 to the second field edge 4, the field edge side contact portion 15 becomes the first field edge 3 By abutting on the side surface 3a and the side surface 4a of the second field edge 4, the first field edge 3 and the second field edge 4 can be pressed from the outside, so that the first field edge 3 and the second field edge 4 can be pressed. Opening is suppressed.

Therefore, by suppressing the opening of the first field edge 3 and the second field edge 4, the first fitting portion 13 is fitted to the first field edge 3 and the second fitting portion 14 is fitted to the second field edge 4. It is possible to reduce the possibility that the mating will be disengaged. As a result, the strength of the intersection of the first field edge 3 and the second field edge 4 can be increased, and the fall of the first field edge 3 and the second field edge 4 can be suppressed.

Further, in a state where the field edge side contact portion 15 is bent, the field edge side contact portion 15 is interposed between the first field edge 3 and the second field edge 4. Therefore, by interposing the field edge side surface contact portion 15 between the first field edge 3 and the second field edge 4, the field edge side surface contact portion 15 can exert a function as a flint. That is, the field edge side contact portion 15 contributes to the improvement of the rigidity at the connecting portion between the first field edge 3 and the second field edge 4. Therefore, the crossing angle between the first field edge 3 and the second field edge 4 can be maintained by the field edge side contact portion 15, and the rotation of the first field edge 3 and the second field edge 4 can be suppressed. can.

Further, the field edge side surface contact portion 15 has a rectangular plate shape, and one of the contact end portions 15a, which are a pair of opposite sides of the field edge side surface contact portion 15, is the side surface of the first field edge 3. It abuts on 3a and the other abuts on the side surface 4a of the second field edge 4. Therefore, since the field edge side surface contact portion 15 has a rectangular plate shape, the shape of the field edge side surface contact portion 15 can be simplified. Further, of the contact end portions 15a of the field edge side contact portions 15 facing each other, one contact end portion 15a abuts on the side surface 3a of the first field edge 3, and the other contact end portion 15a is the first. 2 It abuts on the side surface 4a of the field edge 4. Therefore, each contact end portion 15a of the field edge side contact portion 15 presses the first field edge 3 and the second field edge 4 to surely suppress the opening of the first field edge 3 and the second field edge 4. can do. Therefore, it is possible to reliably suppress the fall of the first field edge 3 and the second field edge 4 while maintaining a simple configuration.

(Second Embodiment)
Next, the field edge connecting hardware 20 according to the second embodiment will be described with reference to FIGS. 6, 7 (a) and 7 (b). The field edge connecting hardware 20 includes a base portion 21 having a shape different from that of the base portion 11, and the number of the first fitting portion 13 and the field edge side surface contact portion 15 is different from that of the first embodiment. In the following description, the description overlapping with the first embodiment will be omitted as appropriate.

The field edge connecting hardware 20 is the first at a portion where one first field edge 3 extending in the first direction D1 and two second field edges 4 extending in the second direction D2 intersect in a T shape. The field edge 3 and the second field edge 4 are connected. The base portion 21 has a hexagonal shape, and the two end sides 21a of the base portion 21 are inclined in both the first direction D1 and the second direction D2. The three end edges 21b of the base portion 21 extend in the width direction of the first field edge 3 and the second field edge 4, and the remaining one end edge 21c extends in the second direction D2. Two holes 12 are formed in the base portion 21. In FIG. 6, the hole 12 is not shown for simplification. The hypotenuse portion 12b of each hole portion 12 extends along the end side 21a, and each equilateral side 12c of the hole portion 12 extends along the first field edge 3 or the second field edge 4. From each end side 21b of the base portion 21, one first fitting portion 13 and two second fitting portions 14 extend downward.

The base portion 21 is provided with two field edge side contact portions 15 and one projecting piece 25. Each field edge side surface contact portion 15 is provided on each end side 21a, and the protruding piece 25 is provided on the end side 21c. The projecting piece 25 is connected to the base portion 21 via the bent portion 16 as well as the field edge side surface contact portion 15. The projecting piece 25 has a first plane 25a extending on the same plane as the base portion 21, and a second plane 25b extending downward from the first plane 25a.

The projecting piece 25 is provided to penetrate under the first field edge 3 and suppress the bending of the end portion of the first field edge 3. When the projecting piece 25 is bent along the bent portion 16, the second plane 25b faces the lower surface 3d of the first field edge 3, and the first plane 25a faces the end surface 3e of the first direction D1 of the first field edge 3. Facing. In this way, in the protruding piece 25, the second plane 25b faces the lower surface 3d of the first field edge 3, and the first plane 25a faces the end face 3e of the first field edge 3. As a result, the bending of the end portion of the first field edge 3 is prevented by the protruding piece 25. The protruding piece 25 may enter under the second field edge 4 to suppress the bending of the end portion of the second field edge 4. FIG. 7A shows an example in which the protruding piece 25 enters under the first field edge 3 and the two second field edges 4 to suppress bending.

A field edge connection method for connecting the first field edge 3 and the second field edge 4 using the field edge connection hardware 20 will be described. The field edge connecting hardware 20 connects one first field edge 3 extending in the first direction D1 and two second field edges 4 extending in the second direction D2. In this field edge connecting method, as in the first embodiment, the first fitting portion 13 is fitted to the first field edge 3 from above in the vertical direction, and each second fitting portion 14 is fitted to the second field from above in the vertical direction. Fits on edge 4. Next, each field edge side contact portion 15 is bent downward to bring each field edge side contact portion 15 into contact with the first field edge 3 and the second field edge 4, and the projecting piece 25 is bent downward to project. By making the piece 25 face the ends of the first field edge 3 and the second field edge 4, the installation work of the field edge connecting hardware 20 is completed.

As described above, in the field edge connecting hardware 20 according to the second embodiment, after each of the first fitting portions 13 is fitted to the first field edge 3 and the second fitting portion 14 is fitted to the second field edge 4. , Each field edge side surface contact portion 15 abuts on the side surface 3a of the first field edge 3 and the side surface 4a of the second field edge 4. As a result, the first field edge 3 and the second field edge 4 can be pressed from the outside, so that the same effect as that of the first embodiment can be obtained.

(Third Embodiment)
Subsequently, the field edge connecting hardware 30 according to the third embodiment will be described with reference to FIGS. 8 and 9. The field edge connecting hardware 30 is the first at a portion where the end of the first field edge 3 extending in the first direction D1 and the end of the second field edge 4 extending in the second direction D2 intersect in an L shape. The field edge 3 and the second field edge 4 are connected. The base portion 31 of the field edge connecting hardware 30 has a pentagonal shape, and one end side 31a of the base portion 31 is inclined in both the first direction D1 and the second direction D2. The two end edges 31b of the base portion 31 extend in the width direction of the first field edge 3 and the second field edge 4, one of the remaining two end sides 31c extends in the first direction D1, and the other extends. It extends in the second direction D2.

One hole 12 is formed in the base 31. In FIG. 8, the hole 12 is not shown for simplification. The hypotenuse portion 12b of the hole portion 12 extends along the end side 31a, each equilateral side 12c of the hole portion 12 extends along the end side 31c, and the first fitting portion 13 downwards from each end side 31b. And each of the second fitting portion 14 extends. The base portion 31 is provided with one field edge side contact portion 15 and two projecting pieces 25. The field edge side surface contact portion 15 is provided on the end side 31a, and each protruding piece 25 is provided on each end side 31c.

The field edge connection method for connecting the first field edge 3 and the second field edge 4 using the field edge connection hardware 30 is the same as in each of the above-described embodiments. That is, the first fitting portion 13 is fitted to the first field edge 3 from above, the second fitting portion 14 is fitted to the second field edge 4 from above, and the field edge side contact portion 15 is bent. It is brought into contact with the first field edge 3 and the second field edge 4. Then, by bending the projecting piece 25 so that the projecting piece 25 faces the end of the first field edge 3 or the second field edge 4, the installation work of the field edge connecting hardware 30 is completed. As described above, in the field edge connecting hardware 30 according to the third embodiment, the first fitting portion 13 is fitted to the first field edge 3, and the second fitting portion 14 is fitted to the second field edge 4. When the edge side surface contact portion 15 abuts on the side surfaces 3a and 4a, the first field edge 3 and the second field edge 4 can be pressed from the outside. Therefore, the same effect as that of each of the above-described embodiments can be obtained.

Although the embodiment of the field connection hardware according to the present invention has been described above, the present invention is not limited to the above-described embodiment, and the present invention is modified or modified without changing the gist described in each claim. It may be applied to other things. That is, the field edge connecting hardware according to the present invention can be variously modified without changing the gist of each claim.

For example, in the above-described embodiment, the fitting portions 13, 14 having an octagonal base portion 11, a right-angled triangular hole portion 12, straight portions 13a, 14a, expansion portions 13b, 14b, and curved portions 13c, 14c. The field edge connection hardware 1 provided with the above was described. However, the shapes, sizes, numbers, and arrangement modes of the base portion, the hole portion, and the fitting portion can be appropriately changed. Further, the shape, size, number and arrangement mode of the field edge side contact portion, the bent portion and the protruding piece can be appropriately changed. For example, in the above-described embodiment, the bent portion 16 having the slit 16a and the connecting portion 16b has been described, but the bent portion may be a portion having no slit and the connecting portion. That is, even if the bent portion is a portion that is easier to bend than other peripheral portions (for example, a portion that is thinner than other peripheral portions or a portion that has lower flexural rigidity than other peripheral portions). Alternatively, it may be a portion scheduled to be bent (for example, a portion where the planned bending line is displayed). In this way, the mode of the bent portion can be changed as appropriate.

For example, in the example shown in FIG. 1, the contact end portions 15a located at both ends of the field edge side surface contact portion 15 are in contact with the side surfaces 3a and 4a of the field edges 3 and 4, respectively. However, the field edge side surface contact portion 15 may have a portion extending from each contact end portion 15a along the side surfaces 3a, 4a of the field edges 3, 4. In this case, by extending the portion of the field edge side surface contact portion 15 along the side surfaces 3a and 4a of the field edges 3 and 4, the portion and the side surface 3a and 4a can be screw-fixed and flinted. It is possible to further strengthen the fixing by.

Further, in the above-described embodiment, a field edge connection including a first fitting portion 13 that fits into the first field edge 3 from above and a second fitting portion 14 that fits into the second field edge 4 from above. The hardware 1 has been explained. However, the field edge connecting hardware according to the present invention may include, for example, a fitting portion that slides from the side and fits in instead of the first fitting portion 13 and the second fitting portion 14. .. That is, the fitting direction to be fitted to the field edge is not limited to the vertical direction and can be changed as appropriate.

Further, in the above-described embodiment, the ceiling structure in which the first field edge 3 extends in the first direction D1 and the second field edge 4 extends from both sides of the first field edge 3 in the second direction D2 has been illustrated. However, the field edge connecting hardware according to the present invention can also be applied to various other ceiling structures. The shape, size, number, and arrangement of the field edges may be different from each of the above-described embodiments. For example, at the intersection, the first field edge may be divided into two, or the second field edge may pass between the two first field edges. Further, the shape, size, number, material and arrangement mode of the ceiling surface material are not limited to the above-described embodiment and can be appropriately changed.

1,20,30 ... Field connection hardware, 2 ... Ceiling surface material, 3 ... First field edge, 3a, 4a ... Side surface, 3b, 4b ... Bottom surface, 3c, 4c ... Folded part, 3d ... Bottom surface, 3e ... End face 4, ... 2nd field edge, 11,21,31 ... base part, 11a, 11b, 21a, 21b, 21c, 31a, 31b, 31c ... edge, 11c ... center, 12 ... hole part, 12a ... right angle part, 12b ... Hypotenuse, 12c ... Equal side, 13 ... First fitting part, 13a, 14a ... Straight part, 13b, 14b ... Expansion part, 13c, 14c ... Curved part, 15 ... Field edge side contact part, 15a ... Contact end, 15b ... Connection end, 16 ... Bend, 16a ... Slit, 16b ... Connection, 25 ... Projection piece, 25a ... First plane, 25b ... Second plane, D1 ... First direction, D2 ... First Two directions.

Claims (2)

A field edge connecting hardware that connects the first field edge and the second field edge extending in the direction intersecting the first field edge from the first field edge.
The base portion facing the first field edge and the second field edge,
A first fitting portion that extends from the base portion and fits into the first field edge,
A second fitting portion that extends from the base portion and fits into the second field edge,
It is located between the first fitting portion and the second fitting portion and is bendable with respect to the base portion. In the bent state, the side surface of the first field edge and the second fitting portion. The field edge side contact part that contacts the side surface of the field edge,
Field connection hardware equipped with. The field edge side contact portion has a rectangular plate shape and has a rectangular plate shape.
One of the pair of opposite sides of the field edge side contact portion abuts on the side surface of the first field edge, and the other abuts on the side surface of the second field edge.
The field connection hardware according to claim 1.

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