JP3328182B2 - Metal fittings - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a metal fitting, and more particularly, to a metal fitting that can reduce interference with other building materials and the like and can be firmly fixed to a wooden material and beautifully in appearance.

[0002]

2. Description of the Related Art Various joining fittings are used for joining structural materials in a wooden building. Usually, the forming material is a hot-rolled raw material such as SGHC or SGH400 of JIS G 3302. The hot-dip galvanized steel sheet used was used.

[0003]

However, the conventional metal fittings have a thickness of 2.3 mm to 3 mm from the viewpoint of securing a predetermined strength.
When it has a thickness of about 0 mm and is fixed to a structural material, it tends to cause interference with other building materials due to the fact that the thickness of the joining bracket itself is large, and the heads of nails and screws project from the surface. However, in order to avoid this, a time-consuming operation is required separately.

[0004] For example, as shown in FIG. 10, in the case of the joint 20 used for joining the column 60 and the base 70, if the outer wall base material 30 is stuck on the fixed joint 20 as it is, other parts are formed. And a problem arises in that the finished thickness of the surface is reduced. Therefore, work such as notching the outer wall base material 30 along the outer peripheral shape of the joint fitting 20 has been required. In addition, the conventional joining metal fittings are liable to interfere with other structural metal fittings, and therefore, there has been a case where a countermeasure such as suddenly using other fittings in place of the planned structural fittings has been inevitable. In such a case, it is conceivable to avoid the interference with other building materials or the like by reducing the thickness of the hardware, but this time, the strength of the hardware itself is reduced, and it is difficult to firmly fix the hardware to a wooden material.

Accordingly, an object of the present invention is to provide a metal fitting which can reduce interference with other building materials and the like, and which can be firmly fixed to a wooden material and beautifully in appearance.

[0006]

As a result of various studies, the present inventors have found that a metal fitting having a specific projection fixing portion on a flat plate portion having a specific thickness can achieve the above object.

[0007] The present invention has been made based on the above findings, and the invention according to claim 1 is a metal fitting having a flat plate portion which is fixed to a wooden material by a fixing member such as a nail or a screw. The flat plate portion is made of a steel plate having a thickness of 0.3 mm to 0.8 mm, and has, on the back surface thereof, a plurality of projecting fixing portions having a through hole in a central portion, and the fixing member is disposed on the front surface side of the flat plate portion. is fixed by striking wear from the time of fixing, it to the protruding fixing portion is received in the fixed portion out projecting the head of the fixing member with sinks in the wooden material
The protruding fixing portion is provided around the through hole,
Projects in the direction opposite to the direction of projection of the projection fixing portion
It has a central inclined surface, so that it can be
The through-hole is reduced in diameter, and is fixed to the shaft peripheral surface of the fixing member.
The above object has been achieved by providing a metal fitting characterized in that a compression fixing force is applied thereto.

According to a second aspect of the present invention, the above-mentioned object is achieved by providing the metal fitting according to the first aspect, which is formed of a stainless steel strip for a spring.

According to a third aspect of the present invention, the flat plate portion includes:
The first flat part is fixed to the first structural member and the second flat part is fixed to the second structural member.
The metal fitting according to claim 1 or 2, wherein the first structural member and the second structural member are joined via a flat plate portion and the second flat plate portion. By doing so, the above object has been achieved.

According to a fourth aspect of the present invention, a screw fixing portion is connected to the flat plate portion, and the flat plate portion is abutted and fixed to the first structural member, and the screw fixing portion is fixed to the second structural member. The first structural member and the second structural member are fitted and fixed to the first structural member.
By providing the metal fitting according to claim 1 or 2, characterized in that it is adapted to be joined to the structural material of
The above object has been achieved.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the drawings. First, a first embodiment of the metal fitting of the present invention will be described with reference to FIGS. Here, FIG. 1 is a plan view (showing the front side) showing the metal fitting of the first embodiment, and FIG.
FIG. 2 is a cross-sectional view schematically showing a cross section taken along line AA of FIG.
(A) is a state before fixing the metal fitting to the structural material, FIG. 2 (b)
FIG. 4 is a diagram showing a state in which a metal fitting is fixed to a structural material.

The metal fitting 1 of the first embodiment is a metal fitting having a flat plate portion which is fixed to a wooden material by a fixing member 5 such as a nail or a screw. 0.
It is made of an 8 mm steel plate, and is provided with a plurality of protruding fixing portions 4 having a through hole in the center on the back surface thereof. The fixing member 5 is fixed by hitting it from the surface side of the flat plate portion. At the time of fixing, the protruding fixing portion 4 digs into the wood material and the head 5a of the fixing member 5 It is designed to be accommodated in the fixed part 4.

Hereinafter, the metal fitting 1A of the first embodiment will be described in more detail. The fitting 1A of the first embodiment is a joining fitting for joining structural materials of a wooden building, which are wooden materials, and more specifically, a pillar as a first structural material, and a second fitting. It is a joining metal fitting for joining a base as a structural material. As shown in FIG. 1, the metal fitting 1A is formed of a single inverted Y-shaped plate formed from a stainless steel strip for a spring, and the flat plate portion of the metal fitting is abutted and fixed to a first structural member. And a pair of second flat plate portions 3 and 3 which are fixed in contact with the second structural member.

Here, the stainless steel strip for spring is
It means a stainless steel strip for a spring mainly used for a thin plate spring and a mainspring spring, and includes austenitic, martensitic and precipitation hardening stainless steel strips for a spring.
These are stipulated in JIS G 4313. Among them, nickel and chromium-containing austenitic spring stainless steel strips are preferable from the viewpoint of easy formation and strength of the protruding fixing portion 4, and particularly SUS 304 -CSP is preferred. In the inverted Y-shaped plate, as shown in FIG. 1, a portion C existing in the pair of second flat plate portions 3, 3 is connected to the first flat plate portion 2 of another adjacent structural metal fitting. As it is formed, it is continuously cut out from a belt-shaped stainless steel band for a spring (in FIG. 1, both side edges are indicated by phantom lines P and P).

The metal fitting 1A according to the first embodiment comprises a single plate formed of a stainless steel strip for a spring. The thickness of the first flat plate 2 and the pair of second flat plates 3, 3 may be any one. Is the same as the plate. The thickness T of the first flat plate portion 2 and the pair of second flat plate portions 3 and 3 (thickness excluding the protruding portion of the protrusion fixing portion 4; see FIG. 2A) is 0.
3 mm to 0.8 mm, more preferably 0.6 m
m to 0.8 mm. When the thickness is less than 0.3 mm, it becomes difficult to secure the strength required for the joint fitting, and when the thickness is more than 0.8 mm, the inner and outer walls of the inner and outer walls are directly fixed on the fitting fixed to the structural material. It becomes practically difficult to attach the base material, and it is necessary to perform a troublesome process such as notching the base material as in the case of the above-mentioned conventional joint metal fittings.

The hardness of the above stainless steel strip for spring (JI
SZ 2244) is preferably 250 HV or more from the viewpoint of sufficient indentation of the protruding fixing portion, and its tensile strength (rolling direction, measured according to JIS Z 2241) is 780 N / mm ² or more.

The projecting and fixing portion 4 is provided with a plurality of same-shaped members on the first flat plate portion 2 and the pair of second flat plate portions 3 and 3, respectively. It is formed by processing. still,
The positions at which the protruding fixing portions 4 of the first flat plate portion 2 and the protruding fixing portions 4 of the second flat plate portion 3 are formed are set such that the wood fibers are oriented in such a manner that the pulling force is hardly generated in the structural material to be fixed. It is desirable to be provided at random in consideration of it.

As shown in FIG. 2A, each of the projecting fixing portions 4 has the first flat plate portion 2 or the second flat plate portion 3 protruding to the rear surface side so that the vertical cross-sectional shape becomes substantially W-shaped. A central inclined surface 42 surrounding the periphery of the through hole 41; and an outer inclined surface 43 further surrounding the central inclined surface 42.
The central inclined surface portion 42 projects in a direction opposite to the direction in which the projecting fixing portion 4 projects, and as shown in FIG. 2B, is pressed by the fixing member 5 at the time of fixing, as shown in FIG. Deforms slightly. Also, at the center of the protrusion fixing portion 4,
A concave portion 44 is formed surrounded by the central inclined surface portion 42.

The distal end portion 45 of each projecting fixing portion 4 is annular and sharp, so that it is easy to dig into the structural material. The angle formed between the central inclined surface portion 42 and the outer inclined surface portion 43 is about 90 degrees in the case of the present structural joint. However, the cross-sectional defect due to the through hole 41 is sufficiently reinforced, and the wooden material is sufficiently sunk. It is preferably from 30 to 120 degrees, particularly preferably from 30 to 90 degrees, from the viewpoint of ensuring the properties. Note that a slit or the like may be provided at the distal end portion 45 of the protruding fixing portion 4 so as to divide it into a plurality of sharper portions.

When the metal fitting 1A of the first embodiment is used for a joint between a column and a base, the first flat plate portion 2 and the second flat plate portion 3 are separated from the rear surfaces of the flat plate portions 2 and 3, respectively. The fixing member 5 such as a nail or a bolt is struck from the surface side of each flat plate portion through the through hole 31 in this state. The metal fitting 1A of the first embodiment is firmly fixed to the column and the base in this way and beautifully in appearance, and is fixed to the column and the base via the first flat plate portion 2 and the second flat plate portions 3 and 3. Are joined. When fixing, the tip 3 of the second flat plate 3
a and 3a are usually bent and inserted into the lower part of the base. With the attachment of the fixing member 5, the projecting fixing portion 4
Are designed to sink into the surface of the structural material 7 which is a wooden material. At the same time, the protruding fixing portion 4 is pressed and deformed, so that a concave portion 46 for accommodating the head 5a of the fixing member 5 is formed on the front surface side of the structural joint 1. . Then, at least a part of the head of the fixing member 5 is accommodated in the recess 46. FIG. 2 (b)
2 shows a state in which the protruding fixing portion 4 is sunk into the surface of the structural member 7 and the head 5a of the fixing member 5 is completely accommodated in the concave portion 46.

Further, the central inclined surface portion 42 is deformed in the axial direction of the fixing member 5 as the fixing member 5 is hit, so that the diameter of the through hole 41 is slightly reduced. Thus, a large compressive fixing force is applied to the peripheral surface of the shaft portion 5b of the fixing member 5.

As the fixing member 5 used for fixing to the structural material, it is preferable that the entire head 5a be accommodated in the concave portion 46 at the time of fixing. In particular, the upper end face of the head 5a accommodated in the recess 46 is flat or is flat when hit, and the upper end face and the surface of the metal fitting are shown in FIG. As shown in FIG.
In the present specification, the term “attachment” means not only driving a nail or the like but also screwing a bolt, inserting a bolt or the like into a fitting hole formed in a structural material in advance, and tightening with a nut or the like on the opposite side. Including.

Examples of the fixing member 5 include screw nails, screws, bolts, and the like. The material for forming the fixing member 5 is not particularly limited, and various commonly known materials can be used. . As the fixing member 5, a screw nail or a chrome molybdenum steel nail is preferable from the viewpoint of obtaining a stronger joining strength.

According to the metal fitting 1 of the first embodiment, it is thin,
Since it is formed using a stainless steel strip for a spring which has not been used in this type of metal fittings in the past, and the unevenness of the protruding fixing portion 4 reinforces a cross-sectional defect due to a through hole,
The metal fitting can be firmly fixed to the joint between the structural materials, and sufficient joint strength can be secured at the joint between the structural materials. Further, since the projecting fixing portion 4 is immersed and fixed in the structural material and the head of the fixing member is accommodated in the projecting fixing portion, the projecting amount (projecting thickness) from the surface of the structural material is minimized. And the appearance is beautiful. Therefore, after fixing the metal fittings to the joint between the structural materials,
Even if a base material such as a plywood or a lath plate as a structural surface material is stuck so as to cover the metal fitting 1 as it is, the thickness of the metal fitting 1 does not substantially matter, and a notch for avoiding the thickness is provided. No processing such as is required. This makes it possible to simplify the on-site work, shorten the construction period, and the like. In addition, in the case of external heat insulation, there is no gap between heat insulating materials.
High airtightness can be achieved.

Further, since the metal fitting 1 fixed to the structural material projects only slightly from the surface of the structural material, interference with other structural metal hardly occurs. It is unlikely that a situation where the user must use the metal fittings will be required. The metal fitting 1A according to the first embodiment includes a fixing member 5
Since the periphery of the through-hole 41 is deformed with the striking, and a compressive force is applied to the fixing member 5, the struck fixing member 5 is extremely unlikely to come off or loosen. Further, since the strength is secured around the through hole 41 by the protruding fixing portion 4, the joining strength is excellent.

Next, a second embodiment which is another embodiment of the fitting of the present invention will be described with reference to FIG. Here, FIG. 3 is a diagram showing a use state of the metal fitting of the second embodiment.

The metal fitting 1B of the second embodiment is a metal fitting for joining the first structural material 6 and the second structural material 7 in a wooden building, and is made of a wooden material by a fixing member such as a nail or a screw. And a screw fixing portion 9 connected to the flat plate portion. The flat plate portion 8 has a thickness of 0.3
It is made of a stainless steel strip for spring having a thickness of 0.8 mm to 0.8 mm, and is provided with a plurality of projecting fixing portions having a through hole in a central portion on the back side thereof. Then, the metal fitting 1B is fixed to the side surface of the first structural member by hitting a fixing member from the surface side of the flat plate portion 8. The screw fixing portion 9 is inserted and fixed in an insertion hole provided in the second structural member in advance. The protruding fixing part of the metal fitting of the second embodiment also has the same configuration as the protruding fixing part 4 of the metal fitting of the first embodiment. ) And the head 5a of the fixing member is accommodated in the protruding fixing portion.

To explain further, the metal fitting 1B of the second embodiment
Is usually referred to as a feather plate bolt, and includes the flat plate portion 8 and a screw fixing portion 9 connected to the flat plate portion 8 via a connecting portion 8a. It is composed of nuts and the like. Then, the flat plate portion 8 is
Abutting and fixing to the side surface of the structural member 6, and inserting the bolt portion of the screw fixing portion 9 into a through hole provided in the second structural member 7 and tightening it with the nut 10 on the opposite side.
And the second structural member 7 are joined.

According to the metal fitting 1B of the second embodiment, the first embodiment is provided with the flat plate portion 8 having the protruding fixing portion 4 similar to the first flat plate portion 2 and the second flat plate portion 3 in the first embodiment. The same effect as that of the structural metal fitting 1 of the embodiment can be obtained. still,
The preferable thickness of the flat plate portion 8 and the preferable mode of the protrusion fixing portion 4 are the same as those in the first flat plate portion of the first embodiment.

Next, still another embodiment of the metal fitting of the present invention will be described. The metal fitting of the third embodiment is a metal fitting including a flat plate portion which is vertically abutted and fixed to a wooden material, and a hook portion connected to the flat plate portion. As in the embodiment, the central portion has a mountain-shaped projecting and fixing portion that is depressed. The flat plate portion is made of a steel plate having a thickness of 0.3 mm to 0.8 mm, and the hook portion is formed by bending a metal rod into a J-shape to form a hook shape. It is fixed to the flat plate by welding.

In the metal fitting, with the hook portion positioned downward, the surface of the flat plate portion on which the protruding fixing portion protrudes is brought into contact with a vertical surface of a horizontal member or the like, and the opposite surface is provided. By driving a fixing member into the projecting fixing portion from above, the fixing member can be fixed to the horizontal member. At the time of this fixing, the protruding fixing portion is sunk into the wooden material, and the entire head of the fixing member is accommodated in the protruding fixing portion 4. Thereby, the amount of protrusion of the metal fitting from the surface of the wooden material is minimized. The preferred dimensions and shape of the projecting fixing portion in this case are also the same as those in the first embodiment.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above embodiments, and can be appropriately modified without departing from the spirit of the present invention. For example, as shown in FIGS.
It may be triangular, V-shaped, rectangular, or the like. The metal fittings shown in FIGS. 4 and 5 are structural metal fittings used for bonding between the pillar and the base, similarly to the metal fitting 1A of the first embodiment, and the metal fitting shown in FIG. What is called. These metal fittings have a first flat plate part and a second flat plate part, similarly to the metal fittings of the first embodiment, and one side of each metal fitting is centered on the center line M at the center in the longitudinal direction (left-right direction in each drawing) of each metal fitting. Is the first
The flat plate portion and the other side are a second flat plate portion.

Further, the shape of the protruding fixing portion in the present invention may be a shape as shown in FIGS. 7 (b) and 7 (c). The protruding fixing portion in FIG. 7A has a substantially V-shaped vertical cross section without a central inclined surface portion. As shown in FIGS. 7 (b) and 7 (c), the metal fitting of the present invention protrudes in the direction opposite to the projecting direction of the projecting fixing part 4, and has a central inclined surface part 42 which is deformed by being pressed by the fixing member during fixing. Having a protruding fixing part
It is provided. 7 (b) and 7 (c), the fixing member is strongly held by the deformation of the central inclined surface portion 42, and the fixing member does not fall off after fixing. The fixing member 5 in FIG. 7A is a screw nail.

The first flat plate portion 2 and the second flat plate portion 3 both have a thickness of 0.3 mm to 0.8 mm, and are both protruding fixing portions having a through hole in the center on the back surface side. Is preferably provided, but either one of the first flat plate portion 2 or the second flat plate portion 3 has such a thickness and is provided with such a protruding fixing portion. good. Further, the first flat plate portion 2 and the second flat plate portion 3
May be connected to each other at a predetermined angle as shown in FIG. In addition, one or both of the first flat plate portion 2 and the second flat plate portion 3 may have a claw portion 11 or the like that engages with a corner of the structural material. In FIG. 8, the direction of the claw portion 11 is on the back side of the first flat plate portion or the second flat plate portion.

Further, the first flat plate portion 2 and the second flat plate portion 3 are
It may be separated by interposing another member.
The structural joint shown in FIG.
This shows an example in which the flat plate portion 2 and the second flat plate portion 3 are connected. In addition, in addition to a first flat plate portion abutted and fixed to a vertical material and a second flat plate portion abutted and fixed to a horizontal member, like a box-type brace fixing bracket, a brace that is a diagonal material is also used. It may have a third flat plate portion to be fixedly contacted. The structural material in the present specification includes diagonal materials such as braces, studs, feathers, and the like.

[0036]

According to the present invention, it is possible to provide a metal fitting which can reduce interference with other building materials and the like and can be firmly fixed to a wooden material and beautifully in appearance.
In order to confirm the joining strength (tensile strength) of the metal fitting according to the present invention, a horizontal member is brought into contact with the lower part of the vertical member, and the metal fitting of the first embodiment is a structural metal fitting on both sides of the contact part. (JIS G 4313 SUS 304-CSPH, 0.8mm thick) was fixed with a chrome molybdenum steel nail, and the relative displacement (mm) to the load (kgf) was examined. The conventional structural fitting (JIS G 3302 SGHC.227, 2.3 mm thick) was confirmed to have a strength (tensile strength) equal to or higher than that obtained by similarly fixing with a normal screw nail. Also, at this time, when the height of the metal fitting according to the present invention protruding from the surface of the vertical member and the horizontal member was measured, it was about the same as the thickness of the metal fitting itself. Even if it was installed so as to cover the inner and outer walls, no problem occurred.

[Brief description of the drawings]

FIG. 1 is a plan view showing a fitting according to a first embodiment of the present invention.

FIG. 2 is a cross-sectional view schematically showing a cross section taken along the line AA of FIG. 1, and FIG.
(B) is a figure which shows the state after fixing of metal fittings.

FIG. 3 is a plan view showing a fitting according to a second embodiment of the present invention.

FIG. 4 is a plan view showing another embodiment of the present invention.

FIG. 5 is a plan view showing still another embodiment of the present invention.

FIG. 6 is a plan view showing still another embodiment of the present invention.

FIG. 7 is a schematic view showing an example of another protruding fixing portion and a fixing member according to the present invention.

FIG. 8 is a perspective view showing still another embodiment of the present invention.

FIG. 9 is a perspective view showing still another embodiment of the present invention.

FIG. 10 is an explanatory view showing a state of use of a conventional structural metal fitting.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Metal fitting 2 Flat plate part (1st flat plate part) 3 Flat plate part (2nd flat plate part) 4 Projection fixing part 5 Fixing member 5a Head 6 1st structural material 7 2nd structural material 8 Flat plate part 9 Screwing fixation Department

────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁷ identification symbol FI F16B 5/00 F16B 5/00 C (58) Field surveyed (Int.Cl. ⁷ , DB name) E04B 1/26 E04B 1 / 38-1/60 F16B 5/00-5/12

Claims (4)

(57) [Claims] 1. A metal fitting having a flat plate portion fixed to a wooden material by a fixing member such as a nail or a screw, wherein the flat plate portion is made of a steel plate having a thickness of 0.3 mm to 0.8 mm, and a back surface thereof. Side, a plurality of protruding fixing portions having a through-hole at the center portion are provided, and the fixing member is fixed by hitting the fixing member from the surface side of the flat plate portion. The fixing member is recessed and the head of the fixing member is accommodated in the protruding fixing portion , and the protruding fixing portion is provided around the through hole.
Central inclined surface projecting in the opposite direction to the direction of projection
And the through-holes are formed with the attachment of the fixing member.
The diameter is reduced, and the compression fixing force is applied to the peripheral surface of the shaft of the fixing member.
Metal fittings characterized by being added . 2. The metal fitting according to claim 1, wherein the metal fitting is made of a stainless steel strip for a spring. 3. The first flat plate, comprising: a first flat plate fixed to abut against a first structural member; and a second flat plate fixed to abut against a second structural member. Through the first portion and the second flat plate portion,
3. The metal fitting according to claim 1, wherein the structural material is joined to the second structural material. 4. 4. A screw fixing portion is connected to the flat plate portion, and the flat plate portion abuts and is fixed to a first structural member, and the screw fixing portion is fitted and fixed to a second structural member. The metal fitting according to claim 1, wherein the first structural material and the second structural material are joined by doing.