JP3940510B2 - Fastening bracket - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a fastener used for joining plate members such as outer wall plates.
[0002]
[Prior art]
Recently, the exterior wall surface of a house or the like has been required to have a high design according to the preference of the customer, and a large number of decorative exterior wall plates with a surface pattern are on the market. Conventionally, a decorative outer wall plate has been constructed by arranging a plurality of plate materials vertically and horizontally and fixing them to a base material with screws or nails, etc., but if the decorative outer wall plate is fixed with screws or nails, the decorative outer wall plate The decorative surface of the board is scratched and the design properties are easily impaired. Therefore, as shown in FIG. 6, the substrate 31, the horizontal piece 32 erected on the substrate 31, the upward locking piece 33 </ b> A bent obliquely upward from the tip of the horizontal piece 32, and the horizontal piece 32 There has been proposed a fastener 30 including a downward locking piece 33B that is bent obliquely downward from the tip (see, for example, Japanese Patent Laid-Open No. 9-203184).
[0003]
As shown in FIG. 7, the fastener 30 is fixed to the base material 61 with screws 62 through the screw holes 34 of the base material 31. Four rounds of the outer wall plates 40A and 40B, which are building boards to be joined, are real parts, so-called lower solids are formed on the upper side and one side, and upper solids are formed on the lower side and the other side. . In FIG. 7, the lower side portion of the upper outer wall plate 40 </ b> A to be joined is made solid, and the upper side portion of the lower outer wall plate 40 </ b> B is made lower. That is, the upper solid part is the upper actual pattern forming part 41 on the front surface side, the upper actual mounting part 42 on the back surface side, and the concave groove that is a joint between the upper actual pattern forming part 41 and the upper actual mounting part 42. The lower solid part has a lower actual mounting part 44 formed so as to face the upper actual mounting part 42 on the back surface side.
[0004]
First, the front end portion of the lower mounting portion 44 of the lower outer wall plate 40B is formed by the lower fitting portion 50B (base member 31, horizontal piece 32, and downward locking piece 33B) of the fastener 30. The lower outer wall plate 40B is fixed to the base material 61, and then the upper mounting portion 42 of the upper outer wall plate 40A is fitted to the upper fitting portion 50A (base material) of the fastener 30. The upper outer wall plate 40A is fixed to the base material 61 by fitting to the base plate 61, the horizontal piece 32, and the upward locking piece 33A. Since the upper and lower outer wall plates 40A and 40B are joined in this manner, there is no risk of damaging the surface of the outer wall plate, and the fastening metal fitting 30 is not visible from the outside and is very preferable in appearance. is there.
[0005]
[Problems to be solved by the invention]
Incidentally, FIG. 8 is a view of the outer wall plate 40 in which the lower side is formed on the upper side and the right side, and the upper side is formed on the lower side and the left side, as viewed from the surface side (patterned side). A horizontal attachment 44A in the horizontal direction is formed on the side, and a solid attachment 44B in the vertical direction is formed on the right side. Then, caulking agents 45A and 45B are placed on the surface side of the lower actual attachment portions 44A and 44B at a predetermined distance from the inner corner portion. Also on the back side of the horizontal upper pattern forming portion 41A and the upper vertical pattern forming portion 41B constituting the upper side of the lower side and the left side of the outer wall plate 40, a predetermined distance from the inner corner portion, After all, a caulking agent may be placed.
[0006]
FIG. 9 is a partial perspective view for explaining a state in which the outer wall plate 40 shown in FIG. 8 is joined in the vertical direction. The lower solid side of the upper outer wall plate 40A is combined with the lower solid of the lower outer wall plate 40B. In this case, a horizontal gap S1 is formed at the joint. Further, an outer wall plate is further connected to each of the upper outer wall plate 40A and the lower outer wall plate 40B in the lateral direction (left-right direction). At that time, the solid on the left side of the outer wall plate and the upper outer wall plate 40A (and the lower outer wall plate 40B) are combined with the solid on the right side, and a vertical gap S2 is formed at the joint. As can be understood from the figure, the horizontal gap S1 and the vertical gap S2 are continuous gaps.
[0007]
Rainwater enters such gaps S1 and S2. However, the caulking agent 45A driven into the surface side of the lower solid mounting portion 44A on the upper side of the lower outer wall plate 40B comes into contact with the back surface of the upper pattern forming portion 41A on the lower side of the upper outer wall plate 40A and seals it. Since the portion is formed, it is avoided that rainwater that has entered the horizontal gap S1 bypasses the back surface of the outer wall plate 40 by detouring in the vertical direction. Similarly, it is avoided that rainwater that has entered the vertical gap S <b> 2 circumvents the lateral direction and wraps around the back surface of the outer wall plate 40.
[0008]
On the other hand, rainwater that has entered the gap S1 moves in the horizontal direction, reaches the gap S2 in the vertical direction, and flows down the gap S2. By the way, as shown in FIG. 7, the fastener 30 is arranged at the joint portion of the outer wall plate 40, but the upward fitting of the fastener 30 is fixed to the inclined surface of the upper mounting portion 42 of the upper building plate 40 </ b> A. The inner surface of the piece 33A is almost in close contact, and rainwater flowing down the vertical gap S2 does not enter the inside of the upper fitting portion 50A (if there is a trace amount), the upward locking Overcoming the upper side of the piece 33A, it flows down further, and is formed by the surface side of the upward locking piece 33A, the surface side of the downward locking piece 33B, and the back surface side of the upper pattern forming portion 41 of the upper building board 40A. The cross section enters the space Sa having a substantially triangular shape.
[0009]
As described above, the back surface of the upper pattern forming portion 41A on the lower side of the upper outer wall plate 40A and the surface of the lower actual mounting portion 44A on the upper side of the lower outer wall plate 40B form a seal portion by the caulking agent 45. For this reason, the rainwater that has entered the space Sa having a substantially triangular cross section as described above does not flow down as it is, but temporarily stays in the space Sa. The accumulated rainwater moves in the horizontal direction in the space Sa, leaks from the side edges of the locking pieces 33A and 33B, and is placed on the surface side of the lower solid mounting portion 44 on the upper side of the lower building board 40B. It flows out into the space above the horizontal caulking agent 45A. Similarly, rainwater that has entered the upper fitting portion 50A leaks from the side edges of the locking pieces 33A and 33B or the horizontal piece 32 and flows out into the space. The space is a space communicating with the back side of the outer wall plate 40, and rainwater that enters the space enters the back surface of the building plate 40 and damages the building plate.
An object of the present invention is to provide an improved fastener that can positively avoid the sneaking of rainwater to the back surface of the building board as described above, which may occur in a conventional fastener. .
[0010]
[Means for Solving the Problems]
The fastening metal fitting according to the present invention for solving the above-mentioned problems includes a substrate, a horizontal piece standing on the substrate, an upward locking piece bent obliquely upward from the tip of the horizontal piece, And a downward locking piece bent obliquely downward from the tip, wherein at least the tip of the upward locking piece is a flat plate portion bent downward.
[0011]
In the fastening metal fitting according to the present invention having the above-described configuration, the rainwater flowing down the longitudinal gap S2 and over the leading edge of the upward locking piece is formed by bending the leading edge of the upward locking piece downward. It flows down along the surface of the formed flat plate part. The flat plate portion is in contact with the back side of the upper pattern forming portion of the upper building board, and does not spread laterally, but actively from the gap formed in the vertical joint of the left and right building boards. It is discharged toward the surface side. Therefore, it is avoided that rainwater that has entered from the gap in the horizontal direction and the vertical direction wraps around the back side of the building board.
[0012]
The flat plate portion may be a flat surface parallel to the substrate, or may have a shape in which the longitudinal sectional shape bulges on the opposite side of the substrate. In the latter case, it is possible to further ensure the contact of the flat plate portion with the back side of the western part of the upper actual pattern meter, and the wraparound of rainwater to the back side is more reliably avoided.
In a preferred aspect, the substrate is provided with urging means for urging the plate material to be clamped toward the back surface of the downward locking piece. Thereby, attachment of a board | plate material and a fastener can be stabilized. In a preferred embodiment, the substrate is provided with rising pieces extending to the back surface at the upper edge and the lower edge. Thereby, it becomes easy to form an air circulation space between the fastened building board and the support on the housing side, and it is possible to easily prevent the occurrence of condensation.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, with reference to the drawings, a preferred embodiment of a fastener according to the present invention will be described.
FIG. 1 is a perspective view showing an embodiment of a fastening bracket. The fastening bracket 10 is made of a metal material such as iron or stainless steel, and the lower end edge of the rectangular substrate 11 is on the back side. A bent up rising piece 1 is formed, and an upper end edge thereof is formed as a rising piece 2 inclined obliquely toward the back side and a horizontal piece 3 at the tip thereof. Holes 4 and 5 are provided in the rising piece 2 and the horizontal piece 3 and are used to nail the base material 61 of the building.
[0014]
The central portion of the substrate 11 is cut and raised in a U-shape, and the cut and raised piece is first bent 90 degrees forward to form a horizontal piece 12A, and then bent obliquely upward to be an upward locking piece 13A. Next, the flat plate portion 14 is formed by bending downward from the tip of the upward locking piece 13A. The horizontal piece 12A and the upward locking piece 13A perform the same function as the horizontal piece 32 and the upward locking piece 33A in the conventional fastener 30 shown in FIG.
[0015]
The left and right portions of the substrate 11 are also cut and raised in a U-shape, and the cut and raised pieces are bent 90 degrees forward at substantially the same height as the horizontal pieces 12A to form horizontal pieces 12B. It is bent downward diagonally to form a downward locking piece 13B. The horizontal piece 12B and the downward locking piece 13B perform the same function as the horizontal piece 32 and the downward locking piece 33B in the conventional fastener 30 shown in FIG.
[0016]
Below the left and right cut-and-raised parts, cut-and-raised pieces 6 and 6 extending in the lateral direction functioning as urging means are formed in a cantilever shape, and the cut-and-raised pieces 6 and 6 are formed more than the lower edge 6a. The upper edge 6b is twisted so as to be in the front position. Further, a concave portion 7 directed toward the back surface is formed above the central cut and raised portion, and a hole 8 is formed on the bottom surface. The depth of the recessed portion 7 is substantially the same as the height of the rising piece 1 of the substrate 11. In the figure, 9 is a concave groove for securing the strength of the substrate 11.
[0017]
FIGS. 2 and 3 are views for explaining a state in which the outer wall plate 40 shown in FIG. 8 is fastened using the fastening metal fitting 10, and the outer wall plates 40A and 40B are the same as described with reference to FIG. Is fastened. Further, the relationship between the outer wall plates 40A and 40B in the fastened state is the same as described based on FIG. Therefore, here, the same reference numerals are given to the same members, and detailed description is omitted.
[0018]
As shown in FIG. 2, in the fastening bracket 10, the tip of the upward locking piece 13 </ b> A is bent downward to form a flat plate portion 14, and when the outer wall plate 40 is fastened, the flat plate portion 14 is in contact with the back surface of the upper pattern forming portion 41A of the upper outer wall plate 40A. Therefore, the space Sa having a substantially triangular cross section as described with reference to FIG. 7 is not formed, and the rain water flowing down the vertical gap S2 existing at the joint portion of the left and right outer wall plates is not covered by the flat plate portion. 14 flows down to the surface side. Therefore, there is no stagnation of rainwater near the locking piece, which tends to occur with the conventional fastening bracket, and it is reliably avoided that the rainwater wraps around the back surface of the outer wall plate.
[0019]
Further, the outer wall plate 40 is pressed toward the back surface of the downward locking piece 13B by the laterally extending cut and raised pieces 6 and 6 functioning as urging means, and the outer wall plate 40 and the fastening bracket 10 are connected to each other. Installation is stabilized. Further, since the cut and raised pieces 6 and 6 are twisted so that the upper edge 6b is at the front position with respect to the lower edge 6a, it is easy to insert the fastener 10 into the outer wall plate 40. Furthermore, since the upper end edge and the lower end edge of the substrate 11 are provided with rising pieces 1 and 2 extending to the back surface side, the air circulation space Sc (FIG. 2) between the fastened building board 40 and the housing 61 side. Therefore, it is possible to easily prevent the occurrence of condensation on the back surface of the outer wall plate 40.
[0020]
FIG. 4 is a perspective view showing another embodiment of the fastener according to the present invention. Here, a single U-shaped cut and raised piece is provided at the center of the substrate 11, and the cut and raised piece is First, it is bent 90 degrees forward to be a horizontal piece 12A, then bent obliquely upward to be an upward locking piece 13A, and then bent downward from the tip of the upward locking piece 13A. After the flat plate portion 14 is formed, the lower end of the flat plate portion 14 is further bent obliquely upward on the back side to form a downward locking piece 13B. Other configurations are almost the same as those of the fastener 10 shown in FIG. Here, the downward locking piece 13B performs the same function as the downward locking piece 33B in the conventional fastening member 30 shown in FIG.
[0021]
The manner of use of the fastener is substantially the same as that shown in FIG. 1, and rainwater flowing down the vertical gap S2 existing at the joint between the left and right outer wall plates described above is the outer wall plate. In the same way, it is surely avoided that it wraps around the back surface.
[0022]
FIG. 5 is a perspective view showing still another embodiment of the fastener according to the present invention. The fastener 10 is widely cut out below the left and right cut-and-raised portions. As a result of the wide cut-out, the laterally extending cut-and-raised pieces 6 and 6 that function as the urging means in the fastener shown in FIG. 1 are not formed, but are formed by cut-and-raised pieces on the left and right portions of the substrate 11. In the horizontal piece 12B and the downward locking piece 13B, the strength of the downward locking piece 13B is increased by forming a portion 13C in which the vicinity of the lower end side of the downward locking piece 13B is partially bent inward. Stabilization of the attachment between the plate 40 and the fastener 10 is ensured.
[0023]
Further, the recessed portion 7 formed on the upper side of the central cut-and-raised portion and directed toward the back surface is made longer in the lateral direction, thereby enhancing the resistance of the entire fastener 10 to twisting and pressing force. In this way, since the nail is actively carried out at a position close to the center part of the fastening bracket, the strength is greatly increased as compared with the conventional method of piling mainly on the horizontal piece 3 part. Therefore, it is possible to fix the fastening bracket to the trunk edge or the like. As a result, the holding strength of the outer wall plate is greatly improved. Further, as a result of being horizontally long, a plurality of (three in the figure) holes 8 can be formed therein, and the degree of freedom of fastening the fastening bracket 10 to the base material 61 is increased. . Moreover, it becomes unnecessary to provide the hole 5 for a nail | claw in the horizontal piece 3 of a front end, and a process is facilitated.
[0024]
The manner of use of this fastener is also substantially the same as that shown in FIG. 1, and rainwater flowing down the vertical gap S2 existing at the joint between the left and right outer wall plates described above is the outer wall plate. In the same way, it is surely avoided that it wraps around the back surface. In the fastening bracket according to the present invention, a fastening hole (for example, in the illustrated case, a hole provided in the rising piece 2 inclined obliquely and the horizontal piece 3 at the tip thereof for attaching the fastening bracket to the base material). 4, 5 and the number of holes 8) provided in the recessed portion 7 and the formation positions thereof are arbitrary, and may be appropriately determined according to the fastening strength required for the fastening hardware. It is also arbitrary which hole is used for nailing.
[0025]
【The invention's effect】
In the fastening bracket according to the present invention, rainwater flowing down through the vertical gap where the joint portions of the left and right outer wall plates are present surely flows out to the surface side at the fastening bracket portion. Therefore, there is no stagnation of rainwater in the vicinity of the locking piece of the fastening bracket, which is likely to occur with the conventional fastening bracket, and it is avoided that the rainwater wraps around the back surface of the outer wall plate.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an embodiment of a fastener according to the present invention.
FIG. 2 is a cross-sectional side view illustrating a usage mode of the fastener shown in FIG.
FIG. 3 is a perspective view for explaining a usage mode of the fastener shown in FIG. 1;
FIG. 4 is a perspective view showing another embodiment of the fastener according to the present invention.
FIG. 5 is a perspective view showing still another embodiment of the fastener according to the present invention.
FIG. 6 is a perspective view illustrating a conventional fastener.
7 is a cross-sectional side view illustrating a usage mode of the fastener shown in FIG. 6. FIG.
FIG. 8 is a perspective view showing an example of an outer wall plate.
9 is a view for explaining an assembled state of the outer wall plate shown in FIG. 8. FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 ... Fastening metal fitting, 11 ... Board | substrate, 12A, 12B ... Horizontal piece erected on board | substrate, 13A ... Upward locking piece bent diagonally upward from the front-end | tip of a horizontal piece, 13B ... Diagonally downward from the front-end | tip of a horizontal piece Bending downward locking piece, 14 ... Flat plate portion formed at the tip of the upward locking piece, 6 ... Cut-and-raising piece as urging means

Claims (6)

A cut-and-raised piece formed by cutting and raising the central portion of the substrate into a U-shape is bent 90 degrees forward to be a horizontal piece, the horizontal piece is bent obliquely upward to be an upward locking piece, The tip of the upward locking piece is bent downward to form a flat plate part,
A cut and raised piece formed by cutting and raising each of the left and right portions of the central portion of the substrate in a U-shape is bent 90 degrees forward at substantially the same height position as the horizontal piece to form a separate horizontal piece, The separate horizontal piece is bent obliquely downward to be a downward locking piece,
Two plate members are locked to the upward locking piece in a posture in which the two plate members are connected in the left-right direction, and a vertical gap between the joint portions of the two plate members is formed on the horizontal piece of the cut and raised piece in the central portion. Fastening metal fittings characterized by that. A cut-and-raised piece formed by cutting and raising the central portion of the substrate into a U-shape is bent 90 degrees forward to be a horizontal piece, the horizontal piece is bent obliquely upward to be an upward locking piece, The tip of the upward locking piece is bent downward to be a flat plate portion, and the lower end of the flat plate portion is bent obliquely upward on the back side to be a downward locking piece,
Two plate members are locked to the upward locking piece in a posture in which the two plate members are connected in the left-right direction, and a vertical gap between the joint portions of the two plate members is formed on the horizontal piece of the cut and raised piece in the central portion. Fastening metal fittings characterized by that. The fastening plate according to claim 1 or 2, wherein the flat plate portion is a flat surface parallel to the substrate. The fastening member according to claim 1 or 2, wherein the flat plate portion has a shape in which a longitudinal sectional shape bulges to the opposite side of the substrate. The said board | substrate is provided with the urging means for urging | biasing the board | plate material which is to be fastened toward the back surface of the said downward locking piece, The fastening in any one of Claim 1 thru | or 4 characterized by the above-mentioned. Mounting bracket. The said board | substrate is equipped with the standing piece extended to the back surface side at the upper end edge and the lower end edge, The fastening bracket in any one of Claim 1 thru | or 5 characterized by the above-mentioned.

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