JPH09126215A - Sheet metal member fastening fittings, sheet metal member fastening method using the fittings and sheet metal member fitting structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate looseness and rattling of a fastened part and to prevent a screw from falling off by buckling a part of the shaft with respect to the compressive force of a hollow rivet in the axial direction and screwing a screw through a through hole in the hollow rivet. SOLUTION: When a sheet metal worked article B3 of a separate body is fitted to sheet metals B1, B2 utilizing a tapping screw T, a through hole B3a large enough to insert a tapping screw T is formed on the worked article B3 of a separate body in advance. After abutting the worked article 3B upon a hollow rivet 3, the tapping screw T is screwed into a through hole 3c of the hollow rivet 3 from the through hole B3a. Thus there is no looseness or rattling on the fastened part and there is no chance for a tapping screw T to fall off.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to the field of architecture and construction,
In various industrial fields such as the electric / electronic field, the automobile industry field and the machine field, at least one thin plate or a processed product of the thin plate is buckled with a hollow rivet, and another member is superposed on the hollow rivet portion. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a thin plate member fastening metal fitting fastened with a screw, particularly a tapping screw, through a hollow rivet, a thin plate member fastening method using the same, and a thin plate member mounting structure.

[0002]

2. Description of the Related Art A tapping screw is known as a fastener for fastening thin plates to each other or to other members. This tapping screw is excellent in convenience and workability and is inexpensive, but has the following problems.

That is, when the thin plate has a thickness of 2.2 mm or less and is made of a soft material such as aluminum or copper, it is flexible and does not have a plate thickness enough to form a screw groove. , When fastening the thin plate, there is a possibility that the tapping screw idles and the thin plate is damaged.
Also, once damaged, it cannot be attached to the same location.

Further, a steel plate having a thickness of 1.0 to 1.5 mm is used for the pillars, girders, handrails, etc. of balconies, etc., but this is not so thick as to form a thread groove.
There is a problem similar to the above case.

Further, when fastening thin plates to each other or a thin plate and a processed product of thin plates in this way, the tapping screw cannot be screwed with sufficient strength, and is broken by slight shock or vibration, or wind pressure or load. There is a fatal defect that the fastening part is loosened due to the vibration accompanying the change of (1) and backlash occurs, and the tapping screw comes off.

For this reason, when attaching thin plates or the like, a back plate is applied to reinforce them, and they are fixed with screws or a small screw and its nut are used, but this takes time, convenience and construction. I don't like sex.

In order to deal with such a problem, fasteners called pop rivets and pop nuts have been conventionally proposed.

As a pop rivet, for example, a real Kaihei 4
As disclosed in Japanese Patent Publication No. 23810, a rivet main body having a head formed at one end of a tubular portion and a headed shaft rod inserted into the rivet main body. The shaft rod is inserted and supported from the side opposite to this side until this head comes into contact, and the rivet body together with this shaft rod is fitted into the caulking hole of the plate material, and the shaft is pressed while pressing the head of the rivet body. A pulling force is applied to the rod to buckle the tubular portion of the rivet body, and the plate member is fastened by pressure contact between the buckling portion and the head of the rivet body.

[0009] On the other hand, pop nuts are actually used in Shokai Sho 60-13.
As disclosed in Japanese Patent No. 1717, a locking collar is formed at one end of a cylindrical body in which a female screw is engraved on the inner peripheral surface of the lower half of a hollow hole, and a straight portion near the locking collar buckles. The nut is formed as thin as possible, and a bolt that is screwed into the cylinder from the locking flange side of this nut. A bolt is screwed into the cylindrical body and rotated to buckle the straight portion, and the buckling portion and the locking brim are pressed to fasten the plate material.

[0010]

However, the pop rivet described in Japanese Utility Model Laid-Open No. 4-23810 described above is suitable for fastening the stacked plate members from one direction. The structure is not such that other plate materials can be fastened, its use is extremely limited, and it cannot be exchanged with other plate materials, resulting in lack of flexibility.

By the way, when another plate is further attached to a structure in which a plurality of plate members are fastened with pop rivets, an insertion hole is provided at a position different from the position where the rivet is fixed, and the rivet body is inserted into the insertion hole. It is necessary to fit them and to buckle the tubular part of the rivet body in the same manner as described above, and to rivet-fasten other plate materials by press contact between the buckling part and the head of the rivet body, which is extremely uneconomical. In addition, there is a problem that the workability is extremely poor and the workability and convenience are lacking.

On the other hand, the crimping nut described in Japanese Utility Model Laid-Open No. 60-131717 has excellent fastening strength.
The manufacturing cost and thus the purchase price are high in that a nut with a thread groove formed on the inner peripheral surface of the cylinder and a bolt that matches this thread groove are required, and the cylinder is seated by rotating the bolt. In this construction method, in addition to lacking in workability and convenience, there is a restriction that a bolt matching the thread groove of the cylindrical body must be used, and as shown in FIG. 3 of the publication. When a plate material (corresponding to the L-shaped material) is attached later, the bolt that has been once screwed must be unscrewed and removed, and the plate material (corresponding to the L-shaped material) must be attached to the location and fastened again with the bolt. Inconvenient.

The present invention has been completed in order to solve the above-mentioned technical problems, and a hollow rivet is buckled to at least one thin plate or a processed product of the thin plate, and another member is attached to this hollow rivet portion. The hollow rivet is securely fixed to the thin plate by stacking and screwing it through the hollow rivet, especially by using a tapping screw, and the hollow rivet has a fastening area with the screw. As a result of the increase, it is not always necessary to engrave a thread groove on the inner peripheral surface of the hollow rivet in advance, the fastening metal fitting is inexpensive, and when the thin plate is fastened, the screw does not run idle and the other plate materials are retrofitted. It is exchangeable and flexible, and convenience and workability are significantly improved, it is economical, and since the screws are screwed with sufficient strength, some shock and vibration may occur. Is not destroyed, and in addition there is no looseness or rattling of the fastening part due to vibration due to changes in wind pressure or load, and screws do not fall off. An object of the present invention is to provide a fastening method and a mounting structure for a thin plate member.

[0014]

In order to achieve the above object, a thin plate member fastening metal fitting according to the present invention comprises a tension breaking nail having a head portion formed at one end of a shaft portion and a through hole extending in the entire axial direction. And a screw screwed into a through hole of the hollow rivet, the hollow rivet having at least part of the shaft portion buckled against a compressive force in the axial direction. .

[Tension rupture nail] The tension rupture nail is formed of a metal material such as aluminum, copper, tin, zinc, or nickel, as well as an alloy containing these as main materials, soft iron, a hard resin, and the like. When fastening another thin plate or other member to one thin plate or a thin plate processed product, at least one thin plate or a thin plate processed product is provided with a hollow rivet in the insertion hole for a hollow rivet that penetrates from one to the other. Insert the tension breaking nail into the through hole of this hollow rivet,
The tension rupture nail is pulled out from the side opposite to the head to rupture the tension rupture nail, and at the same time, the buckling portion of the hollow rivet sandwiches and fastens at least one thin plate or a thin plate workpiece. To do.

For this reason, the length and the shaft diameter of the tension breaking nail differ depending on the length and size of the hollow rivet, but at least the length of the hollow rivet plus the holding portion of the tool, and the hollow rivet. It is required that the shank of the tension breaking nail can be inserted into the through hole of the rivet, and a head for pressing one end of the hollow rivet with a pulling force is formed at one end of the shank. The shaft portion has a strength capable of withstanding at least the force of buckling the hollow rivet, including the fractured portion, and the diameter of the head portion of the tension fracture nail is at least larger than the diameter of the through hole of the hollow rivet. Largely formed.

The breaking point of the tension breaking nail is not particularly limited, but considering that a screw is screwed into the through hole of the hollow rivet after buckling, the vicinity of the head of the shank is broken. It is desirable that the head part fall naturally, and it is most suitable that the fractured part is formed near the head part of the shaft part.
The fractured portion is formed by making the shaft diameter small and forming a recessed portion by pressing or the like so that the strength of at least the fractured portion is made weaker than other shaft diameter portions.

[Hollow rivet] As a hollow rivet,
There is no particular limitation as long as the through hole is formed in the entire axial direction and at least part of the shaft portion is configured to buckle with respect to the compressive force in the axial direction. The preferable material is aluminum, copper, in consideration of facilitating buckling and screwing a screw, particularly a tapping screw as described later.
In addition to metal materials such as tin, zinc, and nickel, alloys containing these as the main materials, soft iron, and the like, which have a certain degree of flexibility, are lightweight, and can be manufactured at low cost are desirable.

The length and the shaft diameter of the hollow rivet are not particularly limited, but after the buckling and fastening of the hollow rivet to a member such as a thin plate, a length such that a screw can be screwed with sufficient strength. And a shaft diameter with which a screw can be screwed.

The buckling portion of the hollow rivet may be the whole or a part of the shaft portion of the hollow rivet, and the portion corresponding to the buckling portion of the shaft portion is formed thin and the portion thereof is formed. May be easily buckled.

By the way, since the hollow rivet is fastened to a member such as a thin plate at a buckling point, the hollow rivet may have a simple tubular shape, but when it is buckled, it is joined to the member such as a thin plate. In order to further secure the clamping, it is preferable that the hollow rivet has a locking portion formed at one end of its shaft portion.

The locking portion is not particularly limited as long as it is in contact with one surface of a member such as a thin plate and further secures the buckling portion to the member such as a thin plate. However, in particular, the flange portion is preferable because it has a wide contact area with a member such as a thin plate, and further secures the fastening and fastening. The flange portion means a peripheral surface in which the peripheral edge of one end of the hollow rivet is widely projected, and includes not only a flat one like a brim but also a non-flat one like a head of a rivet.

By the way, the locking portion does not need to be a flange portion. For example, the locking portion has a shape in which the end portion of the shaft portion is pressed to project outward, and the peripheral end portion of the shaft portion. Part of or the whole of which has a raised shape such as a slope,
The shaft may have a protrusion formed on a part of the peripheral end thereof.
In short, it refers to a structure in which one side of a member such as a thin plate contacts.

Further, this hollow rivet is designed to buckle easily and surely against a compressive force in the axial direction.
It is desirable that the buckling portion be formed thin.

Further, as the hollow rivet preferably used in the present invention, the buckling portion of the hollow rivet is located near the locking portion in order to more securely clamp the buckling portion with a member such as a thin plate. Is desirable.

[Screw] By the way, although it is not always necessary to form a screw groove in the through hole of the hollow rivet, if a screw groove to be screwed into a screw to be used is formed, it is desirable. It is desirable because screws can be used.

That is, when a tapping screw (including a tapping screw; hereinafter the same) is screwed as the screw,
The inner peripheral surface of the through hole in the hollow rivet may be a smooth surface without a thread groove.

As described above, the tapping screw is most suitable for the screw because it can be screwed with an electric screwdriver or the like, and the shape and size may be slightly different. A screw including a tapping screw is used when a member such as a thin plate to which a hollow rivet is fastened is attached with another member.

[Assembly of Tension Breaking Nail and Hollow Rivet] The tension breaking nail and the hollow rivet are formed as separate bodies,
At the time of use, the tension breaking nail may be inserted into the through hole of the hollow rivet, but in order to eliminate this trouble and to improve the handling and workability, the tension breaking nail should be inserted through the hollow rivet in advance. However, it is desirable that the head of the tension breaking nail is fixed at a position where it comes into contact with the end surface of the hollow rivet, that is, a hollow rivet with a tension breaking nail.

By the way, when the hollow rivet is provided with the engaging portion, the head of the tension breaking nail is provided on the side opposite to the engaging portion side of the hollow rivet in order to bring the engaging portion into contact with a member such as a thin plate. Is configured to abut the end face of the.

[Thin Plate Member] In the present invention, the thin plate member is a member such as a thin plate or a processed product of a thin plate, and means not only a thin plate (thin plate) but also all the processed products. Therefore, for example, a hollow square member, an L-shaped member, a pipe member, a fitting, or another structural material can be used.

Generally used in the field of construction / construction, such as stanchions for balcony, girders, handrails, etc.
In addition to flexible metal materials such as aluminum, copper, tin or zinc, alloys containing these as the main materials, and soft iron, etc.,
Even when using a thin metal plate with a thickness of 2.2 mm or less, or a steel plate with a thickness of 1.5 mm or less, which is made of a flexible metal material, a screw, especially a tapping screw, with sufficient strength and stability. Particularly, the feature of the present invention can be effectively exhibited in that it can be screwed.

At least one (one) member such as a thin plate
I just need. That is, the hollow rivet may be fastened to a single member, or a plurality (a plurality) of these members may be stacked, or a single thin plate may be stacked with another member.

The thin plate and the like include not only thin metal plates, but also processed products thereof, engineering plastic plates such as FRP and polysulfone, plate materials such as punching metal plates, small members and mounting members. included.

[Thin plate member fastening method] In order to achieve the above object, the thin plate member fastening method uses at least one thin plate member fastening metal fitting described above, and at least one thin plate or a thin plate processed product. When fastening another thin plate or other member, the hollow rivet is inserted through the insertion hole for the hollow rivet that penetrates from at least one of the thin plate or the processed product of the thin plate to the other, and the hollow rivet is penetrated. The tension-breaking nail is inserted through the hole, the tension-breaking nail is pulled out from the side opposite to the head to break the tension-breaking nail, and the hollow rivet is buckled so that the buckling portion has at least one of the above-mentioned values.
A thin plate or a processed product of the thin plate is sandwiched, and then another thin plate or another member is superposed on the buckled hollow rivet portion, and at least one thin plate or the processed product of the thin plate, Screw other thin plate or other member with screws,
It is characterized by concluding.

A thin plate member fastening method according to the present invention is a method of fastening another thin plate or another member to at least one thin plate or a processed product of the thin plate by using each of the thin plate member fastening metal fittings described above. Therefore, as the thin plate or the processed product of the thin plate, the hollow rivet, the tension breaking nail, the screw, or the like used in this method, the same ones as in the case of the above-mentioned respective thin plate member fastening metal fittings are used, and therefore, in order to avoid redundant description. Omitted in.

By the way, a tension breaking nail is inserted through the through hole of the hollow rivet, the tension breaking nail is pulled out from the side opposite to the head to break the tension breaking nail, and the hollow rivet is buckled to cause the buckling. When the at least one thin plate or the processed product of the thin plate is clamped at the part, the tension breaking nail is broken and the shaft portion is pulled out, the head of the tension breaking nail comes off and the hollow rivet penetrates. Although remaining in the hole, another thin plate or other member is superposed on the buckled hollow rivet portion, and the at least one thin plate or a processed product of the thin plate and the other thin plate or other member are screwed. When screwed and fastened with a tapping screw, the head remaining in the through hole is pushed out and falls.

As described above, in the method for fastening a thin plate member according to the present invention, the tapping screw is not directly screwed into a member such as a thin plate, but a hollow rivet is buckled and fastened into an insertion hole of the member such as a thin plate. Since the thin plate or other member is screwed and fastened with screws via the hollow rivet that is buckled and fastened, both are securely connected.

In this case, when a screw, particularly a tapping screw, is used, the tapping screw is screwed with an electric screwdriver or the like while forming a thread groove in the through hole of the hollow rivet, so that the adhesion between the tapping screw and the hollow rivet is improved. Is very good, and the tapping screw used therefor can be freely screwed in regardless of the pitch of the thread, and the tapping screw can be easily and instantly screwed in.

Further, in the method of the present invention, after buckling the hollow rivet on at least one member such as a thin plate,
Since it is possible to assemble members such as separate thin plates using screws, it is excellent in workability, and it is easy to attach and remove members such as separate thin plates by attaching and detaching screws, and it is highly versatile. Of.

When a hollow rivet is inserted through the insertion hole of a member such as a thin plate and the hollow rivet is buckled and fastened at this position, when the tapping screw is screwed in, the hollow rivet may run idle. , For example, a hollow rivet does not have a round bar at a position corresponding to a member such as a thin plate, but its peripheral surface portion is formed into a square shape, or a protrusion or the like is formed on a part of the peripheral surface, It is also possible to prevent the hollow rivet from running around by forming notches or the like that match any of these peripheral surfaces in the through holes of such members.

Another thin plate member fastening method according to the present invention is
In order to achieve the above-mentioned object, at least one thin plate or thin plate is fastened to another thin plate or another member by fastening at least one thin plate or a thin plate processed product by using the above-mentioned respective thin plate member fastening metal fittings. Insert the tension rupture nail into the hollow rivet in advance into the insertion hole for the hollow rivet that penetrates from one of the processed products to the other, and fix the head of the tension rupture nail at the position where it abuts the end face of the hollow rivet. Insert the hollow rivet with the tension breaking nail, pull out this tension breaking nail from the side opposite to the head to break the tension breaking nail, and buckle the hollow rivet at least one buckle at the buckling portion. The thin plate or the processed product of the thin plate is sandwiched, and then another thin plate or other member is superposed on the buckled hollow rivet portion, and the at least one thin plate or the processed product of the thin plate and the other Plate or screwed to another member by screws, and is characterized in that the fastening.

According to the above-mentioned method, the hollow rivet is inserted into the through hole for the hollow rivet which penetrates from at least one thin plate or one of the processed products of the thin plate to the other, and the tension breaking nail is inserted through the through hole of the hollow rivet. While it does,
Another thin plate member fastening method according to the present invention is such that a tension breaking nail is inserted through a hollow rivet in advance, and the head of this tension breaking nail is fixed at a position where it abuts against the end face of the hollow rivet. The difference is that hollow rivets are used. Therefore, the thin plate or the processed product of the thin plate used in the other method is the same as that of the above-mentioned thin plate member fastening metal fittings, and therefore, the duplication. Omitted to avoid explanation.

As described above, when the tension rupture nail is inserted through the hollow rivet in advance and the head of the tension rupture nail is fixed at a position where it abuts on the end face of the hollow rivet, the hollow rivet with the tension rupture nail is used. It is desirable because it eliminates the trouble of inserting the tension breaking nail into the through hole of the hollow rivet at the time of use and improves the handleability and workability.

[Thin Plate Member Mounting Structure] A thin plate member mounting structure according to the present invention is inserted into an insertion hole for a hollow rivet formed in at least one thin plate or a processed product of the thin plate, and this thin plate or At least one thin plate or a processed product of the thin plate, which comprises a hollow rivet that is buckled so as to sandwich a processed product of the thin plate, and another thin plate or another member that is superposed on the hollow rivet portion. Another thin plate or another member is screwed and fastened with a screw.

That is, the mounting structure of the thin plate member of the present invention relates to the mounting structure in which the thin plate or the processed product of the thin plate and another thin plate or member are fastened as described above.

In the present invention, at least one thin plate or a processed product of a thin plate is inserted into an insertion hole for a hollow rivet, and the thin plate or the processed product of the thin plate is buckled so as to be clamped. The hollow rivet is not limited to the hollow rivet buckled by using the tension breaking nail as described above, and is buckled by the buckling tool of the hollow rivet without using the tension breaking nail, for example. In case,
Hollow rivets buckled by any means are acceptable.

The thin plate member mounting structure of the present invention is as follows.
It has a structure in which another thin plate or the like is superposed on the hollow rivet portion which is not buckled to the thin plate or the like, and is screwed through the hollow rivet with a screw, particularly a tapping screw, so that the hollow rivet is securely fixed to the thin plate. Moreover, as a result of this hollow rivet increasing the fastening area with the screw,
Since the screw is screwed with sufficient strength, it will not be destroyed by some shock or vibration, and in addition, the fastening part, that is, the mounting position of the thin plate member, due to vibration due to changes in wind pressure and load. There is no looseness or backlash,
The screws will not come off.

The thin plate member fastening metal fitting, the thin plate member fastening method using the same, and the thin plate member mounting structure according to the present invention have the above-mentioned structure. For example, in the field of construction, so-called exterior member assembly, aluminum, etc. Used for assembling sash products, attaching interior and exterior members, and assembling garages and barns.

Of course, the field of use of the present invention is not limited to the field of construction, but can be used in various fields of industry such as the field of construction, the field of electricity / electronics, the field of automobile industry or the field of machinery.

To give a concrete example, when it is used for assembling a construction temporary frame material, it can be easily assembled by simply screwing a screw, especially a tapping screw from one side. Can be decomposed and reused repeatedly, which is extremely versatile.

Further, when it is used for assembling a case of an electric device in the electric / electronic field, or assembling a board or the like, it is possible to easily and securely assemble them by screwing a screw such as a tapping screw from one direction. In addition, it is easy to repeatedly attach and detach, and the durability is remarkably improved.

In addition, when it is used for mounting interior materials in the automatic field, screwing a member for holding a bundle of electric wires to a metal plate, or mounting a mud-preventing plate around the top of a wheel, it is possible to use conventional resin. As a result of being able to be attached more reliably than the stopper, conventionally, due to vibration of the running or engine, loosening was likely to occur in the attaching portion due to long-term use, but in the present invention such a problem does not occur. is there. As described above, the present invention can be applied to various fields.

[0054]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A thin plate member fastening metal fitting, a thin plate member fastening method using the same, and a thin plate member mounting structure according to the present invention will be described in detail below with reference to the embodiments shown in the accompanying drawings. It is not limited to. By the way, in this embodiment, the tension rupture nail is inserted into the hollow rivet in advance,
A hollow rivet with a tension-breaking nail was used, in which the head of the tension-breaking nail was fixed at a position where it came into contact with the end face of the hollow rivet.

FIG. 1 is a front view showing a hollow rivet with a tension breaking nail which is preferably used in the present invention, and FIG. 2 is a sectional view thereof.
FIG. 3 is a cross-sectional view showing a state in which a hollow rivet with a tension breaking nail inserted through an insertion hole of two thin plates is sandwiched by a tool, and FIG.
3 is a sectional view showing a state where the hollow rivet is buckled using a tool from the state of FIG. 3, FIG. 5 is a sectional view showing a state of breaking the tension breaking nail from the state of FIG. 4, and FIG. Fig. 7 is a cross-sectional view showing a state in which a separate thin plate member is applied to the hollow rivet position which is buckled and fastened to the insertion hole part of the thin plate and screwed with a tapping screw; 8 is a cross-sectional view showing another example of a hollow rivet, FIG. 9 is a front view showing a hollow rivet formed in a shape that prevents idling,
10 is a sectional view taken along the line X1-X1 in FIG. 9, FIG. 11 is a front view showing a hollow rivet formed in a shape to prevent idling according to another example, FIG. 12 is a sectional view taken along the line X2-X2 in FIG. 11, and FIG. It is a perspective view which shows a part of structure assembled using the thin plate member fastening metal fittings.

First, referring to FIGS. 1 and 2, the structure of the hollow rivet 1 with a tension breaking nail suitably used in the present invention will be described.
It is composed of a tension rupture nail 2 and a hollow rivet 3, and the tension rupture nail 2 is inserted into the hollow rivet 3 in advance, and the head 2b of the tension rupture nail 2 is fixed at a position where it abuts on the end face of the hollow rivet 3. Has been done. Hereinafter, the hollow rivet 1 with the tension breaking nail will be described in more detail.

In this tension breaking nail 2, a head portion 2b is formed at one end of a shaft portion 2a, and a small diameter breaking portion 2c is formed near the head portion of the shaft portion 2a.

The hollow rivet 3 comprises a shaft portion 3a having a flange portion 3b at one end and a through hole 3c formed in the entire axial direction.

The diameter of the through hole 3c of the hollow rivet 3 is
The shaft 2a of the tension breaking nail 2 is formed so that the shaft 2a can be fitted therein, and the length of the shaft 3 of the hollow rivet 3 is not particularly limited. , B2 to which the B2 and B2 can be crimped, and a portion such as a tapping screw that can be securely screwed in a stable state. Further, in this case, the diameter of the head portion 2b of the tension breaking nail 2 is easily inserted into the through hole Ba formed in the thin plates B1 and B2 as shown in FIGS. The head portion 2b of the hollow rivet 3 is the flange portion 3
Hold the hollow rivet 3 so that it touches the end face on the side opposite to the b side.
It is formed to be larger than the diameter of the through hole 3c in and also smaller than the outer diameter of the shaft portion 3 of the hollow rivet 3.

The diameter and the wall thickness of the flange portion 3b are not particularly limited, but at least the end surface of the flange portion 3b is formed so that it can contact and press one surface of the thin plate B1. When buckling the rivet 3
It is formed to have a thickness that does not cause damage.

The inner side surface 3b 'of the flange portion 3b is concaved with a curved surface so that its peripheral edge faces the axial center direction. In other words, the central portion of the flange portion 3b is swollen. The buckling force when buckling the hollow rivet 3 by pulling out the tension breaking nail 2 while pressing the flange portion 3b is applied to the shaft portion 3 of the hollow rivet 3.
It can be added to a, and the flange part 3
It is configured such that the peripheral edge of b does not warp in the direction away from the surface of the thin plate B1 and its adhesion is improved.

The hollow rivet 3 shown in this figure has a step formed on the inner peripheral surface of the through hole 3c formed in the axial direction in order to facilitate buckling. That is,
From the length of about half in the axial direction, the head 2b of the tension breaking nail 2
The portion 3c ″ extending to the end portion on the side has an inner diameter that can be fitted into the shaft portion 2a of the tension breaking nail 2, and extends from about half the length in the axial direction to the end portion on the flange portion 3b side. The buckling points 3c 'up to this point are formed to be thin so as to be easily buckled. By the way, the through hole 3c may have no step.

A method of mounting the thin plate member fastening metal fitting according to the present invention will be described with reference to FIGS. It should be noted that, for convenience, in these drawings, the same parts as those in FIGS.

First, as shown in FIG. 3, the hollow rivet 1 with a tension breaking nail is inserted from the head portion 2b side into the insertion holes Ba of the two laminated thin plates B1 and B2, and the flange portion 3b surface of the hollow rivet 3 is inserted. After abutting against the thin plate B1, the shaft portion 2a of the tension breaking nail 2 is clamped by using the tool S.

Subsequently, as shown in FIG. 4, while the tension breaking nail 2 is strongly pulled in the direction opposite to the head 2b side by the holding end Sa of the tool S, the hollow rivet 3 is pushed by the pressing end Sb of the tool S. Of the thin plate B1, by pressing the flange portion 3b of
The buckling portion (corresponding to 3a ') of the shaft portion 3a of the hollow rivet 3 protruding from the through hole Ba of B2 is buckled so that the buckling portion corresponds to one surface side of the thin plate members B1 and B2 (corresponding to B2). ), And the flange portion 3b of the hollow rivet 3 is deformed to be flat.
It is pressure-bonded to one surface side (corresponding to B1).

As a result, the hollow rivet 3 is securely fastened to the thin plates B1 and B2 by the flange portion 3b and the buckling portion, and in this state, the non-buckling portion 3c '' of the shaft portion 3a of the hollow rivet 3 is used. There is a state in which about half the axial direction is projected, and this projecting portion serves as a screw hole for a tapping screw described later.

Next, as shown in FIG. 5, when the tension rupture nail 2 is further pulled, the rupture portion 2 of the tension rupture nail 2 having weak strength 2 is pulled.
c is fractured, the shaft portion 2a of the tension fracture nail after fracture is pulled out, and the head portion 2b is naturally dropped.

Although not shown, in the case of the tension breaking nail 2 in which the breaking portion 2c is located at a distance from the head portion 2b, the head portion 2b is part of the shaft portion 2a even after the breaking. Along with the hollow rivet 2, it will be described later.
It is pushed out by screwing in tapping screws.

By the way, in the figure, two thin plates B1 and B
2, the present invention is not limited to this number, and may be, for example, one thin plate or three or more thin plates.

Further, as shown in FIG. 6, a tapped screw T is used to separate the thin plates B1 and B2 into separate thin plate products B.
The structure and method of attaching 3 will be described. In the drawing, the through-hole B3a sufficient for inserting the tapping screw T is formed in advance in this separate thin plate processed product B3, and this processed product B3 is applied to the three hollow rivets. After that, the tapping screw T may be screwed into the through hole 3c of the hollow rivet 3 from the through hole B3a.

In the present invention, as shown in FIG. 7, the diameter d of the through hole 3c of the hollow rivet 3A may be constant, or, as shown in FIG. 8, the buckling portion 3c 'of the hollow rivet 3B. It is also possible to form a concave portion 3f for facilitating buckling on the inner peripheral surface in the through hole 3c corresponding to ".

By the way, when the tapping screw T is screwed in, if the hollow rivet 3 to which the thin plates B1 and B2 are fastened may run idle in the through hole Ba, as shown in FIGS. 9 and 10. In addition, the peripheral surface of the hollow rivet 3 in the vicinity of the flange 3b of the shaft 3a is formed into, for example, a square shape such as a square shape, and the through holes (not shown) of the thin plates B1 and B2 correspond to this square shape. It may be formed in a shape to surely prevent the idle rotation.

11 and 12 for the purpose of preventing the hollow rivet 3 from idling when the tapping screw T is screwed in.
As shown in FIG. 3, a ridge 3h is formed on at least the peripheral surface of the shaft portion 3a of the hollow rivet 3D in the vicinity of the flange portion 3b, and through holes (not shown) in the thin plates B1 and B2.
May be made to correspond to the shape, and the idle rotation may be surely prevented.

In the present invention, although not shown, a thread groove is formed on the inner peripheral surface of the through hole in the hollow rivet, and a screw corresponding to the pitch of the thread groove and the diameter of the through hole is screwed. It may be configured.

FIG. 13 shows an example of mounting a thin plate processed product (L-shaped member) B3 which is a separate plate from the thin plate by using the tapping screw T. The specific mounting method has already been described in detail. Therefore, it will be described briefly here, avoiding duplicate explanations.

In the example shown in FIG. 13, an L-shaped member B3 is attached to the upper end of a hollow rectangular column BP formed of a thin plate, similarly to FIG. 6, and a handrail BH is further attached via this L-shaped member. It shows a part M of the structure to be attached, and in this illustrated example, the lid member PF is detachably provided at the upper end opening of the square pole BP.

[0077]

The thin plate member fastening metal fitting according to the present invention is formed with a tension breaking nail having a head portion at one end of a shaft portion, a through hole formed in the entire axial direction, and a compressive force in the axial direction. At least a part of the shaft portion buckles, and a hollow rivet, and a screw screwed into the through hole of the hollow rivet.

Therefore, the hollow rivet is fastened to at least one thin plate or a processed product of the thin plate by buckling-proof,
Since other members are superposed on the hollow rivet portion and screwed through the hollow rivet, particularly by a tapping screw, the hollow rivet is securely fixed to a thin plate or the like. As a result of this hollow rivet increasing the fastening area with the screw, it is not always necessary to engrave the thread groove on the inner peripheral surface of the hollow rivet in advance, the metal fitting becomes cheaper, and when the thin plate is fastened, the screw idle It is possible to add or replace other plate materials, which allows flexibility, and is greatly improved in convenience and workability, which is economical, and because the screws are screwed with sufficient strength, some It will not be destroyed by shock or vibration, and in addition, there will be no looseness or looseness at the fastening part due to vibration due to changes in wind pressure or load, and the screw will not fall off. That.

The thin plate member fastening method according to the present invention uses the thin plate member fastening metal fitting according to the present invention to fasten at least one thin plate or a processed thin plate to another thin plate or another member. A hollow rivet is inserted through an insertion hole for a hollow rivet that penetrates from one of the at least one thin plate or a processed product of the thin plate to the other, and a tension breaking nail is inserted through the through hole of the hollow rivet. While pulling out from the side opposite to the head to break the tension breaking nail,
The hollow rivet is buckled and the at least one thin plate or a processed product of the thin plates is clamped at the buckling portion, and then,
Another thin plate or other member is superposed on the buckled hollow rivet, and at least one thin plate or a processed product of the thin plate and the other thin plate or other member are screwed and fastened with a screw. Is the way to do it.

That is, in this method, at least 1
After buckling the hollow rivet to a member such as a thin plate, a separate member such as a thin plate can be retrofitted using a screw,
Easy to install, excellent in workability and workability, economical, and easy to attach / detach a thin plate or other member by attaching / detaching screws. That is, the effect is produced.

Another thin plate member fastening method according to the present invention is as follows:
Using the thin plate member fastening metal fittings according to the present invention, at least 1
When fastening another thin plate or other member to one thin plate or a thin plate processed product, at least one thin plate or a processed product of the thin plate is previously inserted into a hollow rivet insertion hole for penetrating the other into a hollow rivet. Insert the tension rupture nail into the, and insert the hollow rivet with the tension rupture nail that is fixed at the position where the head of the tension rupture nail abuts the end face of the hollow rivet. And the buckling hollow rivet to pinch at least one thin plate or a processed product of the thin plate, and then the buckled hollow rivet location. Other thin plates or other members are superposed on each other, and at least one thin plate or a processed product of the thin plates and the other thin plates or other members are screwed and fastened with screws.

That is, in another fastening method of the thin plate member according to the present invention, the tension rupture nail is inserted into the hollow rivet in advance, and the head of the tension rupture nail is fixed at a position where it abuts the end face of the hollow rivet. Since the hollow rivet with a tension breaking nail is used, in addition to the effect of the above method, it is possible to eliminate the trouble of inserting the tension breaking nail into the through hole of the hollow rivet at the time of use and further improve the handleability and workability. Is desirable.

The mounting structure of the thin plate member according to the present invention is inserted into an insertion hole for a hollow rivet formed in at least one thin plate or a processed product of the thin plate, and the thin plate or the processed product of the thin plate is sandwiched. The hollow rivet buckled so that the hollow rivet and another thin plate or other member superposed on the hollow rivet portion, and the at least one thin plate or a processed product of the thin plate, the other thin plate or another member. It has a structure in which members are screwed and fastened with screws.

The thin plate member mounting structure of the present invention is as follows.
As a result of having such a structure, the hollow rivet is securely fixed to a member such as a thin plate, and since the hollow rivet increases the fastening area with the screw, the screw is screwed with sufficient strength. For this reason, it will not be destroyed by some shock or vibration, and in addition, there will be no looseness or looseness of the fastening part due to vibration due to changes in wind pressure or load, and the screw will not fall off, making it reliable. The effect is extremely high.

[Brief description of the drawings]

FIG. 1 is a front view showing a hollow rivet with a tension breaking nail which is preferably used in the present invention.

FIG. 2 is a cross-sectional view of a hollow rivet with a tension breaking nail that is preferably used in the present invention.

FIG. 3 is a cross-sectional view showing a state in which a hollow rivet with a tension breaking nail inserted into an insertion hole of two stacked thin plates is sandwiched by tools.

FIG. 4 is a cross-sectional view showing a state in which the hollow rivet is buckled from the state of FIG. 3 using a tool.

5 is a cross-sectional view showing a state in which the tension-breaking nail is broken from the state of FIG.

FIG. 6 is a cross-sectional view showing a state in which a separate thin plate member is applied to a hollow rivet portion which is buckled and fastened in the insertion hole portion of two stacked thin plates and screwed with a tapping screw.

FIG. 7 is a cross-sectional view showing another example of the hollow rivet.

FIG. 8 is a cross-sectional view showing still another example of the hollow rivet.

FIG. 9 is a front view showing a hollow rivet formed in a shape that prevents idling.

10 is a sectional view taken along line X1-X1 in FIG.

FIG. 11 is a front view showing a hollow rivet formed in a shape that prevents idling according to another example.

12 is a sectional view taken along line X2-X2 in FIG.

FIG. 13 is a perspective view showing a part of a structure assembled by using the thin plate member fastening metal fitting of the present invention.

[Explanation of symbols]

 1 Hollow rivet with tension breaking nail 2 Tension breaking nail 2a Shaft portion 2b Head portion 2c Breaking portion 3 Hollow rivet 3a Shaft portion 3b Flange portion 3c Through hole B1 Thin plate B2 Thin plate B3 L-shaped plate material T Tapping screw

Claims (13)

[Claims] 1. A tension rupture nail having a head portion formed at one end of a shaft portion, a through hole formed in the entire axial direction, and at least a part of the shaft portion buckles against a compressive force in the axial direction. A thin plate member fastening metal fitting comprising a hollow rivet and a screw screwed into a through hole of the hollow rivet. 2. The metal fitting for fastening a thin plate member according to claim 1, wherein the hollow rivet has an engaging portion formed at one end of its shaft portion. 3. The thin plate member fastening metal fitting according to claim 2, wherein the engaging portion is a flange portion. 4. The thin plate member fastening metal fitting according to claim 1, wherein the tension rupture nail has a rupture portion formed in the vicinity of the head of the shaft portion thereof. 5. The thin plate member fastening metal fitting according to claim 1, wherein the buckling portion of the hollow rivet is formed thin. 6. The thin plate member fastening metal fitting according to claim 2, wherein the buckling portion of the hollow rivet is near the locking portion. 7. The thin plate member fastening metal fitting according to claim 1, wherein a thread groove for screwing a screw is formed in the through hole of the hollow rivet. 8. The thin plate member fastening metal fitting according to claim 1, wherein the screw is a tapping screw. 9. The tension rupture nail is inserted into the hollow rivet, and the head of the tension rupture nail is fixed at a position where it abuts against the end face of the hollow rivet. Metal fittings for fastening thin plate members. 10. The metal fitting for fastening a thin plate member according to claim 9, wherein the head portion of the tension breaking nail is in contact with an end surface of the hollow rivet opposite to the engaging portion side. 11. When fastening another thin plate or another member to at least one thin plate or a processed product of the thin plate by using the thin plate member fastening metal fitting according to any one of claims 1 to 10, Insert the hollow rivet into the insertion hole for the hollow rivet that penetrates from one of the at least one thin plate or the processed product of the thin plate to the other, insert the tension breaking nail into the through hole of this hollow rivet, and head the tension breaking nail. The tension rupture nail is broken by pulling it out from the side opposite to the part, and the hollow rivet is buckled to clamp at least one thin plate or a thin plate workpiece at the buckling part, and then this buckling is performed. Another thin plate or other member is superposed on the hollow rivet portion, and at least one thin plate or a processed product of the thin plate is screwed and fastened to the other thin plate or other member with a screw. Thin Method of fastening plate members. 12. When fastening another thin plate or another member to at least one thin plate or a processed product of the thin plate by using the thin plate member fastening metal fitting according to any one of claims 1 to 10, The tension rupture nail is inserted into the hollow rivet in advance through the insertion hole for the hollow rivet that penetrates from at least one thin plate or one of the processed products of the thin plate to the other, and the head of this tension rupture nail contacts the end surface of the hollow rivet. Insert the hollow rivet with the tension-breaking nail fixed at the corresponding position, pull out the tension-breaking nail from the side opposite to the head to break the tension-breaking nail, and buckle the hollow rivet to cause the buckling. Part, at least one thin plate or a processed product of thin plates is sandwiched, and then another thin plate or other member is superposed on the buckled hollow rivet portion, and at least one thin plate or A method of fastening a thin plate member, which comprises screwing and fastening a thin plate processed product and another thin plate or another member with a screw. 13. An insertion hole for a hollow rivet formed in at least one thin plate or a processed product of a thin plate,
And at least one thin plate or thin plate comprising a hollow rivet buckled so as to sandwich the thin plate or a processed product of the thin plate, and another thin plate or another member superposed on the hollow rivet portion. The thin plate member mounting structure, wherein the processed product and another thin plate or another member are screwed and fastened with screws.