JP2005220577A - Outer wall fixture - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an outer wall fixture for reducing extraction force acting on the fixture by wind pressure acting on an outer wall material, improving workability in a simplified shape, and capable of holding a stable outer wall material fixing state over a long period, by devising a fixing position by its shape and the fixture, in the outer wall fixture for fixing the outer wall material fixed to a backing material by the fixture such as a nail or a machine screw. <P>SOLUTION: This outer wall fixture 1 has a base board part 2 abutting on a reverse side surface of the outer wall material 51, a locking part 3, a rear back part 5 abutting on an obverse side surface of the backing material 50, a fixing hole 6 for inserting the fixture 10, and a lower support piece part 7 abutting on the backing material 50. The rear back part 5 is composed of a horizontal part 5a erected toward the backing material 50 side from the substantially same position as a base part position of a locking part 3 and a backing material abutting part 5b extended upward from the horizontal part 5a and abutting on the backing material 50. The outer wall fixture is constituted by arranging the fixing hole 6 in a lower part of the rear back part 5, and arranging an upper support piece part 8 in an upper end part of the rear back part 5. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a technique of an outer wall fixing tool that is fixed to a base material such as a plywood by a fixing tool such as a nail or a screw and fixes an outer wall material such as a siding.

Conventionally, when fixing an outer wall material (exterior material) such as a siding material to a housing via a base material such as a plywood, a fixing tool such as a nail or a screw used to fix the outer wall material to the base material In order to prevent the head from being exposed to the surface of the outer wall material and impairing the design appearance, a construction method using an outer wall material mounting bracket (hereinafter referred to as an outer wall fixture) is widely known. . The outer wall fixing tool is first fixed to the base material by a fixing tool such as a nail or a screw, and the outer wall material is locked to a locking portion formed on the outer wall fixing tool. In other words, the outer wall fixture is interposed between the base material and the outer wall material, and is disposed across the upper and lower outer wall materials at the joint portion between the upper and lower outer wall materials.
With regard to the outer wall fixture used in such construction, the outer wall material is destroyed by the wind pressure that is generated by the wind flowing in the direction parallel to the surface of the outer wall material and acts to lift the outer wall material from the base material. Techniques that exhibit effects such as preventing the occurrence of a wall or preventing the outer wall material from lifting are disclosed (see, for example, Patent Document 1 and Patent Document 2).

Japanese Patent Application Laid-Open No. 11-247397 Japanese Patent Laid-Open No. 10-280640

  The problems to be solved by the present invention are as follows. In other words, when the above wind pressure acts on the outer wall material, the outer wall fixing device is fixed to the base material by pulling the locking portion of the outer wall fixing device that locks the outer wall material by lifting the outer wall material. A pulling force acts on a fixing tool such as a nail or a screw, but this pulling force increases depending on the fixing position of the outer wall fixing tool by the fixing tool. And the pulling-out force which acts on a fixing tool becomes a point which needs to increase the fixing location by the fixing tool in each outer wall fixing tool, and the fixing location of the outer wall by an outer wall fixing tool. In addition, if an attempt is made to obtain sufficient strength of the outer wall fixture against the floating of the outer wall material due to wind pressure, the shape of the outer wall fixture may be complicated.

In the outer wall fixing tool disclosed in Patent Document 1, the distance between the fixing position of the outer wall fixing tool to the base material by a fixing tool such as a nail and the locking position of the outer wall material by the outer wall fixing tool is the outer wall fixing. Since they are separated from each other, the pulling force acting on the fixture is increased by wind pressure, as will be described later. In other words, the outer wall fixture shown in Patent Document 1 does not prevent the outer wall material from being lifted up by wind pressure, and the strength of the outer wall fixture is partially increased by providing a thin portion on the lower side of the outer wall fixture. Therefore, the outer wall fixture is deformed following the movement of the outer wall material, thereby avoiding partial concentration of stress acting on the joint portion of the outer wall material due to the rising of the outer wall material. This is intended to prevent the destruction of the outer wall material. Furthermore, by providing a locking portion having a substantially circular shape in cross-section at the upper end of the locking portion that locks the upper outer wall material, or by providing a protrusion on the upper end of the surface that contacts the base material, The effect of preventing destruction is about to be obtained.
However, with such a technique, the shape of the outer wall fixture becomes complicated, and the relationship between the strength of the thin wall portion formed on the outer wall fixture and the deformation of the thin wall portion due to the floating of the outer wall material. It is not always easy to adjust. In other words, if the thin wall portion is too thin, the outer wall material is lifted up, so that the outer wall fixture is broken from the thin wall portion. Conversely, if the thin wall portion is too thick, the effect of the present invention cannot be sufficiently obtained.

Further, in the outer wall fixture disclosed in Patent Document 2, in order to prevent deformation of the outer wall fixture due to nailing when fixing the outer wall fixture to the base material, the outer wall fixture is attached to the outer surface of the base material. In order to increase the strength of the outer wall fixing tool, various reinforcing ribs are provided on the outer wall fixing tool. When the fixing position of the outer wall fixing tool to the base material by the fixing tool such as a nail is close to the locking position of the outer wall fixing material by the outer wall fixing tool, the outer wall fixing tool of the outer wall fixing tool due to the wind pressure rising of the outer wall fixing tool It has been shown that lifting can be effectively prevented.
However, the effect of approaching the fixing position of the outer wall fixture to the base material and the locking position of the outer wall member by the outer wall fixture shown in Patent Document 2 is the deformation of the outer wall fixture by nailing. In order to prevent this, or to improve the strength of the outer wall fixing device itself, the intermediate leg portion can be obtained by providing an insertion hole for inserting a fixing device such as a nail in the intermediate leg portion. This is an incidental effect. Further, the outer wall fixture shown in Patent Document 2 is also complicated in shape by providing an intermediate leg portion and various reinforcing ribs. Furthermore, by providing an insertion hole in the intermediate leg portion, the number of nail holes and screw holes in one outer wall fixture may increase, leading to deterioration in workability.

  Therefore, in the present invention, in the outer wall fixing device for fixing the outer wall material fixed to the base material with a fixing tool such as a nail or a screw, the outer wall material is devised in terms of its shape and fixing position by the fixing device. The outer wall fixture that reduces the pulling force acting on the fixture due to the applied wind pressure, improves the workability with a simplified shape, and can maintain a stable fixed state of the outer wall material over a long period of time. It is an issue to provide.

  The problems to be solved by the present invention are as described above. Next, means for solving the problems will be described.

  That is, in claim 1, the substrate portion that contacts the back side surface of the outer wall material, the upper locking portion that is bent from the substrate portion toward the upper side of the outer wall material and locks the upper outer wall material, and the substrate A locking portion having a lower locking portion that is bent downward from the outer wall material side and locks the lower outer wall material, and extends upward from the substrate portion and contacts the front side surface of the base material. A back portion that comes into contact, a fixing hole that is drilled in the back portion and through which a fixture is inserted, and a lower support piece portion that is erected from the lower end portion of the substrate portion toward the base material side and contacts the base material. In the outer wall fixture, the back portion is provided with a horizontal portion standing from the substantially same position as the base position of the locking portion toward the base material, and a base material extending upward from the horizontal portion. It is comprised from the base material contact part contact | abutted to.

  According to a second aspect of the present invention, the fixing hole is provided in a lower portion of the base material contact portion of the back portion.

  According to a third aspect of the present invention, an upper support piece portion is provided on the upper end portion of the rear portion so as to stand from the rear portion toward the outer wall member and to contact the outer wall member.

  According to a fourth aspect of the present invention, a slope part rising toward the base material side is provided between the horizontal part of the back part and the base material contact part, and the fixing hole is provided in the slope part.

  As effects of the present invention, the following effects can be obtained.

According to the first aspect, since the contact area of the rear portion with the base material increases, the degree of freedom of the position where the fixing hole is provided, that is, the position where the outer wall fixing tool is fixed to the base material by the fixing tool is increased. As a result, the fixing position by the fixing tool can be brought close to the locking position of the outer wall material by the locking portion of the outer wall fixing tool, and the pulling out acting on the fixing tool generated by the wind pressure acting in the direction of raising the outer wall material Since the force can be reduced and the stress acting on the outer wall fixture itself can be reduced, the simplified shape eliminates the need to provide reinforcing ribs to improve the strength of the outer wall fixture itself. It can be.
In addition, since the contact surface of the back portion of the outer wall fixture with the base material increases, the force can be distributed against the wind pressure acting in the direction of pressing the outer wall material against the base material side. It is possible to prevent the support piece from sinking into the base material. As a result, it is possible to reduce the pulling force generated by the wind pressure acting in the direction of pressing the outer wall material and acting on the fixture, and the outer wall material can be stably fixed.

According to the second aspect of the present invention, since the pulling force acting on the fixture can be reduced by the wind pressure acting in the direction of lifting the outer wall material, the relative fixing force with respect to the pulling force of the fixture is improved. As a result, it is possible to reduce the number of fixing points by the fixing member in each outer wall fixing tool and to stabilize the fixing of the outer wall material by the outer wall fixing tool. Can do. As a result, construction can be simplified and workability can be improved.
In addition, since the stress acting on the outer wall fixture itself can be reduced, it is possible to obtain a simplified shape without the need for providing reinforcing ribs or the like in order to improve the strength of the outer wall fixture itself.

In claim 3, since the space between the base material and the outer wall material in the outer wall fixture is supported by the lower support piece part, the horizontal part of the back part, and the upper support piece part, The stable fixed state of the outer wall material can be maintained even against strong wind pressure acting in the pressing direction. As a result, even when a strong wind pressure is applied to the outer wall material due to a typhoon or a sudden gust of wind, the tip of the lower support piece of the outer wall fixture that is in contact with the base material sinks into the base material. In addition, the gap between the base material and the outer wall material is partially narrowed, and it is possible to prevent the loss of air permeability and the retention of rainwater, etc., and the design appearance is impaired. Can also be prevented. Further, the pulling force acting on the fixture can be reduced by the wind pressure acting in the direction in which the outer wall material is pressed.
That is, in the outer wall fixing tool of the present invention, the outer wall member is fixed by bringing the fixing position of the outer wall fixing tool to the base material by the fixing tool close to the locking position of the outer wall material by the locking portion of the outer wall fixing tool. The pulling force acting on the fixture is reduced by reducing the pulling force acting on the fixture due to the wind pressure acting in the direction of rising, and by providing the upper support piece, the pulling force acting on the fixture due to the wind pressure acting in the direction of pressing the outer wall material is reduced. Reduced. That is, the pulling force acting on the fixture can be reduced by both of these effects, so that the relative fixing force with respect to the pulling force of the fixture can be improved, rattling of the outer wall material can be prevented, and the outer wall material can be stabilized. It becomes possible to hold the fixed state for a long time.

  According to the fourth aspect, the fixing tool can be driven obliquely downward with respect to the base material. As a result, the fixing force of the fixing tool against the pulling force acting on the fixing tool is improved by the wind pressure acting in the direction in which the outer wall material is lifted, and the outer wall fixing tool can be more stably fixed by the outer wall fixing tool.

Next, embodiments of the invention will be described.
1 is a front view showing an outer wall fixture of the present invention, FIG. 2 is a plan view of the same, FIG. 3 is a right side view of the same, and FIG. 4 is a side view showing a fixed state of an outer wall material using the outer wall fixture of the present invention. 5 is an explanatory view showing the force acting on the outer wall fixture, FIG. 6 is a right side view showing another embodiment of the outer wall fixture of the present invention, FIG. 7 is a diagram showing an arrangement example of the outer wall fixture, FIG. Is a front view showing an example of a conventional outer wall fixture, FIG. 9 is a plan view, FIG. 10 is a right side view, and FIG. 11 is a state of fixing an outer wall material using the outer wall fixture shown in FIGS. FIG. In the following description, the side of the outer wall fixture that locks the outer wall material is referred to as “front”, and the side that is fixed to the base material is referred to as “rear”. The name of each part is defined and described with “up” as the fixing position side of the outer wall fixing tool to the base material and “down” as the opposite side.

  As shown in FIG. 4, the outer wall fixture 1 according to the present invention is used to fix an outer wall material (exterior material) 51 such as a siding material to a housing side via a base material 50 such as a plywood. Yes, between the base material 50 and the outer wall material 51, the joint portion of the upper and lower outer wall materials 51, 51, that is, the outer wall material 51 disposed on the upper side and the upper side of the outer wall material 51 disposed on the lower side. It is arranged across the lower side. In addition, when using this outer wall fixing tool 1, you may arrange | position it upside down, and arrange | position the outer wall fixing tool 1 sideways, and arrange | position at the junction part of the outer wall material 51 * 51 arrange | positioned at right and left. May be. The outer wall fixture 1 is formed by pressing a metal plate material such as a steel plate, a stainless steel plate, or an aluminum alloy plate, but the material constituting the outer wall fixture 1 of the present invention is limited to metal. However, the effect of the present invention can be obtained as long as the material has a strength equal to or higher than that of the various metals.

  As shown in FIG. 1 to FIG. 3, the outer wall fixture 1 of the present invention includes a substrate portion 2 that abuts on the back side surface of an outer wall member 51, and an upper outer wall member that is bent upward and forward from the substrate portion 2. A locking portion 3 provided with upper locking portions 3a and 3a for locking 51, and a lower locking portion 3b bent forward and downward from the substrate portion 2 to lock the lower outer wall material 51; A rear portion 5 that extends upward from the portion 2 and contacts the front side surface of the base material 50, and a fixture 10 that is formed in the rear portion 5 and that fixes the outer wall fixture 1 to the base material 50. The fixing hole 6 to be inserted is provided, and the lower support piece portion 7 is provided so as to stand rearward (from the base material 50 side) from the lower end portion of the substrate portion 2 and abut against the base material 50.

  Such an outer wall fixture 1 is fixed to the base material 50 by inserting the fixture 10 such as a nail or a screw into the fixing hole 6 provided in the back portion 5 of the outer wall fixture 1. Then, the lower locking portion 3b of the locking portion 3 is locked to the upper locking recess 52a formed on the upper side portion of the lower outer wall member 51, and the upper locking portions 3a and 3a of the locking portion 3 are moved upward. The outer wall material 51 is attached and fixed by being engaged with a lower locking recess 52b formed on the lower side of the outer wall material 51. That is, the outer wall fixture 1 is located at the joint portion between the outer wall members 51 and 51 where the locking portion 3 is arranged vertically, the substrate portion 2 abuts against the back side surface of the lower outer wall member 51, and the rear portion 5. In addition, the tip of the lower support piece 7 is in contact with the base material 50.

  The upper locking portions 3a and 3a of the locking portion 3 are bent at the left and right sides of the upper end portion of the substrate portion 2, and are inclined from the upper end of the substrate portion 2 to the front and lower direction, and upward from there. And is formed in a crank shape in a side view. Further, the lower locking portion 3b of the locking portion 3 is formed at a substantially central portion of the upper end portion of the substrate portion 2 and extends substantially horizontally from the substrate portion 2 toward the front (outer wall material 51 side). From there, the width in the left-right direction is widened toward the left and right sides and bent forward and downward. The upper locking portions 3a and 3a and the lower locking portion 3b have respective base portions as the upper end portions of the substrate portion 2, and the base positions of the locking portions 3 are substantially the same position in a side view, that is, the vertical direction. Are substantially the same height.

The back portion 5 includes a horizontal portion 5a erected rearward from substantially the same position as the base position of the locking portion 3, and a base that extends upward from the horizontal portion 5a and contacts the base material 50. It is comprised from the material contact part 5b.
The horizontal portion 5a is bent in a substantially horizontal direction toward the rear between the upper locking portions 3a and 3a provided on the left and right of the upper end portion of the substrate portion 2. A base material contact portion 5b that contacts the base material 50 is bent and extended upward from the rear end of the horizontal portion 5a. That is, the back portion 5 in the outer wall fixture 1 of the present invention extends from the upper end position of the substrate portion 2 to a horizontal portion 5a extending in a substantially horizontal direction and extends from the rear end position of the horizontal portion 5a in the vertical direction. The base material contact portion 5b is formed in a substantially L shape in side view.

In this way, by forming the back portion 5, the base material contact portion 5b comes into contact with the base material 50 over substantially the entire surface, so the contact area of the back portion 5 with the base material 50 increases. The degree of freedom of the position where the fixing hole 6 is provided, that is, the position where the outer wall fixing tool 1 is fixed to the base material 50 by the fixing tool 10 is increased. As a result, the fixing position by the fixing tool 10 can be brought close to the locking position of the outer wall material 51 by the locking portion 3 of the outer wall fixing tool 1 and acts in a direction to lift the outer wall material 51 as will be described later. The pulling force that acts on the fixture 10 caused by the wind pressure can be reduced.
Further, since the contact surface of the rear portion 5 of the outer wall fixture 1 with the base material 50 increases, the force is dispersed with respect to the wind pressure acting in the direction of pressing the outer wall material 51 toward the base material 50 side. It is possible to prevent the lower support piece 7 from sinking into the base material 50. As a result, the pulling force generated by the wind pressure acting in the direction of pressing the outer wall material 51 and acting on the fixture 10 can be reduced, and the outer wall material 51 can be stably fixed.

By the way, in the outer wall fixing tool 1 of the present invention, the fixing hole 6 through which the fixing tool 10 for fixing the outer wall fixing tool 1 to the base material 50 is inserted is formed in the base material abutting portion 5 b of the back portion 5. The position where the fixing hole 6 is provided is the fixing position of the outer wall fixture 1 with respect to the base material 50.
And in the outer wall fixing tool 1 of this invention, the fixing hole 6 is provided in the lower position of the base material contact part 5b, ie, the lower part of the back part 5. FIG.

Thus, by providing the fixing hole 6 which becomes the fixing position to the base material 50 of the outer wall fixing tool 1 in the lower part of the back part 5, the fixing position to the base material 50 of the outer wall fixing tool 1 by the fixing tool 10 is obtained. The vertical position of the locking portion 3, that is, the locking position of the outer wall member 51 by the outer wall fixture 1 is close, and acts on the fixture 10 generated by the wind pressure acting in the direction of lifting the outer wall member 51. The pulling force to be reduced can be reduced.
Hereinafter, the conventional outer wall will be described with respect to the relationship between the force acting on the outer wall fixture 1 by the wind pressure acting in the direction of raising the outer wall material 51 and the fixing position of the outer wall fixture 1 to the base material 50 by the fixture 10. A description will be given in comparison with a fixture.

First, the case of a conventional outer wall fixture will be described.
8 to 10 show an example of a conventional outer wall fixture. This conventional outer wall fixture 101 includes a base plate 102 that abuts the back side surface of the outer wall material, and an upper member that is bent from the substantially central portion of the base plate portion 102 toward the front upper side and that locks the upper outer wall material 51. A locking portion 103 including a locking portion 103a and lower locking portions 103b and 103b that are bent from the left and right sides of the substrate portion 102 toward the front and lower side and lock the lower outer wall material 51, and the rear from the substrate portion 102. A rear portion 105 that extends upward and contacts the front side surface of the base material 50, a fixing hole 106 that is drilled in the rear portion 105 and through which the fixture 10 is inserted, and from the lower end portion of the substrate portion 102 to the rear And a lower support piece 107 that is erected and abuts against the base material 50. The rear portion 105 includes a slope portion 105a extending rearward and upward from the substrate portion 102, and a base material contact portion 105b extending upward from the rear end of the slope portion 105a. The fixing hole 106 is provided in the base material contact portion 105b.

  As shown in FIG. 11, the outer wall fixing tool 101 is also provided with a fixing tool 10 such as a nail or a screw in a fixing hole 106 provided in the rear portion 105 of the outer wall fixing tool 101 in the same manner as the outer wall fixing tool 1 according to the present invention. While being inserted, the fixture 10 is fixed to the base material 50. Then, the lower locking portions 103b and 103b of the locking portion 103 are locked to an upper locking recess 52a formed on the upper side portion of the lower outer wall material 51, and the upper locking portion 103a is locked to the upper outer wall material 51. The outer wall 51 is attached and fixed by being engaged with a lower engaging recess 52b formed on the lower side. In other words, the outer wall fixture 101 is positioned at the joint between the outer wall members 51 and 51 where the locking portion 103 is arranged vertically, the substrate portion 102 abuts against the back side surface of the outer wall member 51, and the rear portion 105 and the lower support. The tip of the piece 107 comes into contact with the base material 50.

The wind pressure acting on the outer wall member 51 attached using the outer wall fixture 101 in this way, and the force in the direction of lifting the outer wall member as described above, is the joining of the outer wall members 51 and 51 arranged above and below. This acts in the direction that the outer wall material 51 is lifted at the portion. Thereby, the force pulled in the direction in which the outer wall material 51 is lifted acts on the locking portion 103 of the outer wall fixture 101 that locks the outer wall materials 51 and 51 at the joint portion. A force acting on the locking portion 103 of the outer wall fixture 101 by the wind pressure acting on the outer wall member 51 is defined as a wind pressure P. When the wind pressure P acts on the outer wall fixture 101, the outer wall fixture 101 is pulled in the direction of lifting with the upper end portion of the back portion 105 as a fulcrum N in a side view. As a result, a force (hereinafter referred to as a pulling force V) for pulling out the fixing tool 10 acts on the fixing tool 10. The wind pressure P and the drawing force V are the distance in the vertical direction between the fulcrum N and the point where the drawing force V acts (the action point), where p is the magnitude of the wind pressure P and v is the magnitude of the drawing force V. Where a is the vertical distance between the point where the pulling force V acts and the point where the wind pressure P acts (force point), the relationship of the following equation (1) is satisfied from the lever principle.
v = {(a + b) / a} × p (1)
When the wind pressure P acts on the outer wall fixture 101 as described above, in order to prevent the fixture 10 from being pulled out, the fixture 10 is fixed to the base material 50 in the direction opposite to the direction in which the pulling force V acts. Must be larger than the magnitude v of the pull-out force V (hereinafter referred to as a fixing force F). However, as shown in FIG. 11, in the conventional outer wall fixture 101, the fixing position of the fixing tool 10 to the base material 50 and the locking position of the outer wall material 51 by the locking portion 103 of the outer wall fixing tool 101 are separated. Since the distance b between the point where the pulling force V acts and the point where the wind pressure P acts is longer than the distance a between the fulcrum N and the point where the pulling force V acts, the above formula From (1), the pulling force V becomes large. That is, when a strong wind pressure acts on the outer wall member 51, the outer wall member 51 is lifted as indicated by a two-dot chain line in FIG. 11, and the fixture 10 is pulled out. That is, since the fixing force F of the one fixing tool 10 is limited, in order to cope with the pulling force V, the fixing points of the outer wall fixing tools 101 are increased by the fixing tools 10 or the outer wall fixing tools 101. It becomes necessary to increase the number of fixing points. This is not preferable in terms of cost because it takes time for construction and increases the number of outer wall fixtures and fixtures to be used.

Next, the case of the outer wall fixture 1 of the present invention will be described with reference to FIG.
In the outer wall fixing tool 1 of the present invention, since the fixing hole 6 is provided in the lower part of the back part 5 as described above, the fixing position of the outer wall fixing tool 1 to the base material 50 by the fixing tool 10 is the outer wall fixing. It is close to the locking position of the outer wall material 51 by the locking part 3 of the tool 1. If this is made to correspond to the above-mentioned formula (1), the point where the pulling force V acts and the point where the wind pressure P acts are compared with the distance a between the fulcrum N and the point where the pulling force V acts. Since the distance b is shortened, the pull-out force V acting on the fixture 10 is reduced.
That is, as in the case of the outer wall fixture 1 of the present invention, the fixing position of the outer wall fixture 1 to the base material 50 and the locking position by the locking portion 3 of the outer wall material 51 are brought closer to each other as described above. Compared with the outer wall fixture 101, from the formula (1), the magnitude v of the pulling force V acting on the fixture 10 becomes the magnitude p of the wind pressure P acting on the locking portion 3 of the outer wall fixture 1. The pulling force V acting on the fixture 10 is reduced by the wind pressure acting in the direction in which the outer wall material 51 is lifted up.

  As described above, in the outer wall fixture 1 of the present invention, the pulling force V acting on the fixture 10 can be reduced by the wind pressure acting in the direction in which the outer wall material 51 is lifted. The relative fixing force F with respect to the drawing force V is improved. As a result, it is possible to reduce the number of fixing points by the fixing tool 10 in each outer wall fixing tool 1 and to stabilize the fixing of the outer wall material 51 by the outer wall fixing tool 1. The number of fixing points can also be reduced. As a result, construction can be simplified and workability can be improved.

  In this embodiment, as shown in FIG. 1, three fixing holes 6 are provided at equal intervals in the substantially horizontal direction. However, by fixing only the fixing hole located in the center with the fixing tool 10. Sufficient strength can be obtained. That is, the fixing holes on both the left and right sides are auxiliary ones for arbitrary use depending on the material of the base material 50, and the fixing points by the fixing tool 10 can be increased or decreased as necessary.

On the other hand, the wind pressure in the direction of pressing the outer wall material 51 in the direction opposite to the wind pressure described above also acts on the outer wall material 51. When the wind pressure by the wind blown from the front acts on the outer wall material 51, the force which presses to the base material 50 side also acts on the outer wall fixture.
On the other hand, as shown in FIG. 11, the conventional outer wall fixture 101 supports the base material 50 and the outer wall material 51 between the slope portion 105 a and the lower support piece portion 107. In particular, a large force acts on the lower support piece 107 standing in the same direction as the wind pressure in the direction in which the outer wall material 51 is pressed. For this reason, when a strong wind pressure is applied to the outer wall material 51 due to a typhoon or a sudden gust of wind, the tip of the lower support piece 107 that is in contact with the base material 50 is sunk into the base material 50. Is also possible. When such a situation occurs, the gap between the base material 50 and the outer wall material 51 is partially narrowed, which impairs air permeability and causes stagnation of rainwater or the like, which is not preferable in terms of appearance. Furthermore, when the lower support piece 107 is sunk into the base material 50 in this manner, a pulling force with respect to the fixture 10 is generated using the bent portion at the upper end of the slope portion 105a as a fulcrum.
That is, the pulling force generated by the wind pressure in the direction in which the outer wall member 51 is pressed and the pulling force V generated by the wind pressure in the direction in which the outer wall member 51 is lifted as described above are respectively applied to the fixture 10. By acting, the fixture 10 may be pulled out in each direction so that the fixture 10 is gradually pulled out over time. If it becomes such a state, it will become easy to produce shakiness of the outer wall material 51, and the fixed fixation of the outer wall material 51 will not be hold | maintained.

Therefore, in the outer wall fixture 1 of the present invention, in addition to the lower support piece portion 7 provided at the lower end portion of the substrate portion 2, that is, the lower end portion of the outer wall fixture 1, the upper end portion of the rear portion 5, that is, the outer wall. An upper support piece 8 is provided at the upper end of the fixture 1.
The upper support piece 8 has a horizontal portion 8a erected forward from the upper end portion of the base material abutting portion 5b of the back portion 5, and an outer wall member 51 extending downward from the horizontal portion 8a. And a vertical portion 8b that comes into contact with.
The horizontal portion 8a is bent in a substantially horizontal direction from the upper end portion of the base material contact portion 5b to the front. A vertical portion 8b is bent from the front end of the horizontal portion 8a and extends downward. That is, the upper support piece 8 is formed in a substantially L shape in a side view by the horizontal portion 8a and the vertical portion 8b. The vertical portion 8b of the upper support piece 8 is formed by bending the horizontal portion 8a downward in the present embodiment, but as in another embodiment of the outer wall fixture 1 as shown in FIG. In addition, it may be formed by being bent upward, and the vertical portion 8b may be omitted.

  Thus, by providing the upper support piece 8 at the upper part of the outer wall fixture 1, the lower support piece 7 and the rear portion described above are provided between the base material 50 and the outer wall material 51 in the outer wall fixture 1. 5 is supported by the horizontal portion 5a and the upper support piece portion 8, so that the outer wall material 51 can be stably fixed against strong wind pressure acting in the direction of pressing the outer wall material 51. Can be held. Thereby, even when a strong wind pressure is applied to the outer wall member 51 due to a typhoon or a sudden gust of wind, the tip of the lower support piece 7 of the outer wall fixture 1 in contact with the base material 50 is It is possible to prevent the gap between the base material 50 and the outer wall material 51 from being partially narrowed without being sunk into the base material 50, thereby preventing air permeability from being impaired or retention of rainwater or the like from occurring. Moreover, it can prevent that the design external appearance is impaired. Further, the pulling force acting on the fixture 10 can be reduced by the wind pressure acting in the direction in which the outer wall material 51 is pressed as described above.

  That is, in the outer wall fixing tool 1 of the present invention, the fixing position of the outer wall fixing tool 1 to the base material 50 by the fixing tool 10 and the locking position of the outer wall material 51 by the locking portion 3 of the outer wall fixing tool 1 are approached. By doing so, the pulling force acting on the fixture 10 is reduced by the wind pressure acting in the direction in which the outer wall material 51 is lifted, and by providing the upper support piece 8, it acts in the direction in which the outer wall material 51 is pressed. The pulling force acting on the fixture 10 is reduced by the wind pressure. That is, since the pulling force acting on the fixture 10 can be reduced by both of these effects, the relative fixing force F with respect to the pulling force V of the fixture 10 can be improved, and rattling of the outer wall material 51 can be prevented. It becomes possible to maintain the stable fixed state of the outer wall material 51 for a long period of time.

Next, another embodiment of the outer wall fixture 1 of the present invention will be described with reference to FIG. In addition, about the part which has the function and shape similar to the said Example, the same code | symbol is attached | subjected and description is abbreviate | omitted.
In the outer wall fixture 1 of the present embodiment, the back portion 5 includes a horizontal portion 5a that is erected from substantially the same position as the base position of the locking portion 3 toward the rear, and from the horizontal portion 5a toward the rear upper side. And a base material abutting portion 5b that extends upward from the slope portion 5c and abuts against the base material 50.
The inclined surface portion 5c is formed to be bent rearward and upward from the rear end portion of the horizontal portion 5a. From the rear end portion of the inclined surface portion 5c, a base material contact portion 5b that contacts the base material 50 is bent and formed. It is extended upwards. In other words, in this embodiment, the slope portion 5c is provided between the horizontal portion 5a constituting the back portion 5 and the base material contact portion 5b in the above embodiment. And the said fixing hole 6 is provided in this slope part 5c.

  Thus, by providing the slope portion 5c between the horizontal portion 5a of the back portion 5 and the base material contact portion 5b, and providing the fixing hole 6 through which the fixture 10 is inserted in the slope portion 5c, FIG. As shown in FIG. 2, the fixture 10 can be driven obliquely downward with respect to the base material 50. As a result, the fixing force F of the fixing tool 10 with respect to the drawing force V acting on the fixing tool 10 is improved by the wind pressure acting in the direction in which the outer wall material 51 is lifted as described above, and the outer wall fixing tool 1 further improves the fixing force F. The outer wall material 51 can be stably fixed.

The arrangement example of the construction state of the outer wall fixture 1 of the present invention described above is shown in FIG. 7 in comparison with the case where the conventional outer wall fixture 101 is used.
FIG. 7 shows a state in which outer wall fixtures are arranged at the four corners of the outer wall material, and the outer wall material is continuously applied to the base material 50 in the vertical direction and the horizontal direction.
FIG. 7B shows a case where a conventional outer wall fixture 101 is used. In this case, the outer wall material that can be stably fixed to the base material 50 using the outer wall fixture 101 is an outer wall material having dimensions of height (vertical length) H and width (horizontal length) L. 151. That is, when the conventional outer wall fixture 101 is used, in order to obtain a sufficient fixing strength of the outer wall material 151 to the base material 50, the vertical direction is determined by the distance H and the left and right direction from the dimension of the outer wall material 151. Means that the outer wall fixture 101 needs to be arranged for each distance L.

  On the other hand, as shown in FIG. 7A, when the outer wall fixture 1 of the present invention is used to obtain substantially the same fixing strength as that shown in FIG. The dimensions of the outer wall material 51 are 2H in height and 2L in width. That is, sufficient fixing strength of the outer wall member 51 by the outer wall fixture 1 can be obtained only by arranging the outer wall fixture 1 every distance 2H in the vertical direction and every distance 2L in the horizontal direction. That is, by using the outer wall fixing tool 1 of the present invention, the area of the outer wall material when fixed in the same manner can be increased as compared with the case where the conventional outer wall fixing tool 101 is used. In other words, by using the outer wall fixing tool 1 of the present invention, the fixing position by the outer wall fixing tool within a certain area can be reduced as compared with the conventional outer wall fixing tool 101.

  As described above, the outer wall fixture 1 of the present invention has an outer wall material 51 by the fixing position of the outer wall fixture 1 to the base material 50 by the fixture 10 and the locking portion 3 of the outer wall fixture 1 depending on the shape of the outer wall fixture 1 of the present invention. Thus, the pulling force acting on the fixture 10 due to wind pressure can be reduced, and the stress acting on the outer wall fixture 1 itself can be reduced. That is, it is possible to obtain a simplified shape without the need to provide reinforcing ribs or the like in order to improve the strength of the outer wall fixture 1 itself. Moreover, since the relative fixing force with respect to the wind pressure in the outer wall fixing tool 1 is improved by reducing the pulling force acting on the fixing tool 10 by the wind pressure, the fixing tool 10 such as a nail in each outer wall fixing tool 1 is used. It is possible to reduce the number of fixing points to the base material 50 and the fixing points of the outer wall material 51 by the outer wall fixing tool 1 as compared with the conventional case, and it is possible to improve workability and to be stable over a long period of time. It becomes possible to hold the fixed state of the outer wall material 51.

The front view which shows the outer wall fixing tool of this invention. FIG. Similarly right side view. The side view which shows the fixed state of the outer wall material using the outer wall fixing tool of this invention. Explanatory drawing which shows the force which acts on an outer wall fixing tool. The right view which shows another Example of the outer wall fixing tool of this invention. The figure which shows the example of arrangement | positioning of an outer wall fixing tool. (a) is a figure which shows the case where the outer wall fixing tool of this invention is used. (B) is a figure which shows the case where the conventional outer wall fixing tool is used. The front view which shows an example of the conventional outer wall fixing tool. FIG. Similarly right side view. The side view which shows the fixed state of the outer wall material using the outer wall fixing tool shown in FIGS.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Outer wall fixing tool 2 Board | substrate part 3 Locking part 3a Upper locking part 3b Lower locking part 5 Back part 5a Horizontal part 5b Base material contact part 6 Fixing hole 7 Lower support piece part 8 Upper support piece part 10 Fixing tool 50 Base material 51 Exterior wall material

Claims (4)

A substrate portion that contacts the back side surface of the outer wall material, an upper locking portion that is bent upward from the substrate portion toward the outer wall material side, and that locks the upper outer wall material, and downward from the substrate portion toward the outer wall material side And a rear part that extends upward from the substrate part and contacts the front side surface of the base material, and the rear part. In the outer wall fixture having a fixing hole that is drilled in and a fixing tool is inserted, and a lower support piece portion that is erected from the lower end portion of the substrate portion toward the base material side and contacts the base material,
The rear portion has a horizontal portion standing from the substantially same position as the base position of the locking portion toward the base material side, and a base material contact extending from the horizontal portion and contacting the base material. An outer wall fixture characterized by comprising a contact portion.   The outer wall fixture according to claim 1, wherein the fixing hole is provided in a lower portion of the base material contact portion of the back portion.   3. The outer wall fixing according to claim 1, wherein an upper support piece portion is provided at an upper end portion of the rear portion so as to stand from the rear portion toward the outer wall member and abut against the outer wall member. Ingredients.   The inclined surface rising toward the base material side is provided between the horizontal portion of the back portion and the base material contact portion, and the fixing hole is provided in the slope portion. Exterior wall fixture.

Images