JPH0868409A - Connecting method for structural angle - Google Patents

Abstract

PURPOSE: To easily and certainly cross-connect two structual angles to each other without using any fixing means such as welding, etc., or any fixing member such as a rivet, etc. CONSTITUTION: The cross sections of a second structual angle 2 connected to a first structual angle 1 is formed in non-circular shapes, and also notches 15 are provided to the other circumference part of a second structual angle 2. An insert hole 6 for fitting and inserting the second structual angle 2 thereto/ therein is opened in the connecting part of the first structual angle 1, and also an appropriate angle θ is made to have to the insert hole 6 for such a condition after the second structual angle 2 is connected to the first structual angle 1. A rotation load P in a direction crossed in an inserting direction is applied to the second structual angle 2 inserted in the insert hole 6 of the first structual angle 1 so that wrench deformation 5 is caused by the notches 15, and the first/second structual angles 1, 2 can be connected to each other.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of joining sections, and more particularly to a method of joining sections in which a second section is joined to a first section in a crosswise manner. .

[0002]

2. Description of the Related Art In recent years, there has been a tendency to reduce the weight of automobiles and other structures by using aluminum profiles, which are formed by crossing profiles in a T-shape, for example. It is often done to combine with.

Conventionally, in order to connect the shape members to each other as described above, fixing means such as welding and adhesion, rivets, and the like are generally used.
It is performed using fixing members such as bolts and nuts.

[0004]

However, the conventional joining method has a problem in that many man-hours are required.
That is, it is difficult to improve the dimensional accuracy of the joint in the joining by the fixing means such as welding or adhesion, and
There is a problem that skill is required for application of a brazing material or an adhesive. In addition, in a joining method using fixing members such as rivets and bolts and nuts, a fixing member such as a rivet is required, and a process for attaching these fixing members is required. There were problems such as time and labor required.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a method for joining shaped members that enables simple and reliable solid joining.

[0006]

In order to achieve the above-mentioned object, the first method for joining profile members according to the present invention is directed to a profile member for joining a second profile member to a first profile member in a cross shape. On the premise of the joining method, the second profile to be joined to the first profile is formed to have a non-circular cross section, and a cutout is provided on the outer peripheral portion thereof.
An insertion hole for inserting the second shape member is formed in the joint portion of the first shape member, and the insertion hole is appropriately inserted into the insertion hole for the state after the second shape member is connected. By giving a rotational load in a direction intersecting the insertion direction to the second shape member inserted into the insertion hole of the first shape member by giving an angle, prying deformation is imparted by the notch to form the shape member. It is characterized by coupling (Claim 1).

[0007] Also, a second method of joining shaped members according to the present invention is similar to the method of joining the first shaped material, wherein the second shaped member is joined to the first shaped member in an intersecting manner. Assuming the joining method of the above, the second section to be joined to the first section is formed in a non-circular cross section, and a notch is provided in the outer peripheral portion thereof,
An insertion hole for inserting the second shape member is formed in the connection portion of the first shape member, and the insertion hole is appropriately inserted into the insertion hole in a state after the second shape member is joined. An angle is applied to the second profile inserted into the insertion hole of the first profile by applying a rotational load in a direction intersecting with the insertion direction to give a twisting deformation by the notch, and then the second profile is subjected to the prying deformation. Between the engaging portion provided on the engaging portion of the first profile and the outside of the joint of the second profile;
It is characterized in that the shape members are joined together by interposing a reverse rotation stopping member (Claim 2).

[0008]

According to the present invention, the second section to be joined to the first section is formed to have a non-circular cross section, and a notch is provided in the outer periphery thereof, so that the joining section of the first section is formed. , An insertion hole for inserting the second section is inserted, and the insertion hole is
Make an appropriate angle with respect to the state after the second profile is joined,
Then, by applying a rotational load in a direction intersecting the insertion direction to the second section inserted into the insertion hole of the first section, the notch can be twisted to join the sections. (Claim 1).

As described above, after the twisting deformation is imparted by the notch, the reverse rotation stopping member is provided between the engaging portion provided on the engaging portion of the first shape member and the outside of the connecting portion of the second shape member. With the interposition of, it is possible to more reliably join the shape members (claim 2).

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 is a cross-sectional perspective view of an example of a joint structure of shapes by the joining method of the present invention, FIG. 2 is a perspective view of a first shape member of the present invention, and FIG. 3 is a second shape member of the present invention. FIG.

The above-mentioned connecting structure has a first section 1 formed of an aluminum extruded section having a closed rectangular cross section and a second section formed of an aluminum extruded section having a rectangular cross section.
This is a case where the shape member 2 and the shape member 2 are connected in a T shape, and a rotational load P is applied to the second shape member 2 to give a deformation for connection.

This joining method will be described with reference to FIGS. 2 to 4. First, as shown in FIG. 2, after joining the second section 2 to the joining side wall 1 a of the first section 1. A rectangular insertion hole 6 inclined by an angle θ with respect to the state is formed. As shown in FIG. 3, a notch 15 that engages with the opening edge 6 a of the insertion hole 6 of the first profile 1 is provided on the outer peripheral portion (specifically, a corner portion) of the second profile 2. . Then, as shown in FIGS. 1 and 4, after inserting the second profile 2 into the hollow portion 3 of the first profile 1 through the insertion hole 6, the second profile 2 is inserted in the insertion direction. When a rotational load P in a direction intersecting (for example, orthogonal to) is applied, the notch 15 rotates while twisting the opening edge 6 a of the insertion hole 6. In this way, by twisting the second profile 2 by the angle θ, a twist deformation 5 is applied to the opening edge 6a, and the twist deformation 5 engages the notch 15 with the opening edge of the insertion hole 6, The first profile 1 and the second profile 2 can be joined.

In this case, if the second shape member 2 is reversely rotated after being deformed, the coupled state may be released. It is desirable to interpose between the pair of L-shaped locking pieces 1b (locking portions) provided on the second profile 2 and the second profile member 2 (FIGS. 5 and 6).
reference). As shown in FIG. 6, the reverse rotation preventing member 16 may be provided with a locking groove 16a that engages with the locking piece 1b, or may be interposed in the concave groove 1c inside the locking piece 1b. It may be any of prismatic members. The rotation angle of the second profile 2 is arbitrary, but the inclination angle θ of the insertion hole 6
By rotating by the same angle as the first section 1 and the second section
Of the profile 2 can be the same.

In the above description, the case where the first profile 1 is a hollow profile with a closed cross section has been described, but the first profile 1 is formed by a hollow profile with a C-shaped open cross section, for example. You can also Further, the case where the cross-sectional shape of the second section 2 is square has been described, but by rotating the second section 2,
The cross-sectional shape of the second section 2 may be any non-circular shape, as long as the notch 15 causes the opening edge 6a of the insertion hole 6 to twist.

In the above embodiment, the case where the first section 1 and the second section 2 are joined in a T-shape has been described. However, the present invention is not necessarily limited to the case where the first section 1 and the second section 2 are joined in a T-shape.
The first section 1 and the second section 2 can also be connected in an intersecting manner at an appropriate angle.

[0017]

As described above, according to the method of joining the shape members of the present invention, the following effects can be obtained.

According to the first aspect of the present invention, the second section to be inserted into the joining section of the first section is formed to have a non-circular cross-section and is formed on the outer periphery thereof. Notch,
An insertion hole for inserting the second section is formed in the joint of the first section, and an angle is appropriately formed in the insertion hole with respect to the state after the second section is joined. In addition, by applying a rotational load in a direction intersecting the insertion direction to the second section inserted into the joining section of the first section, the notch can be twisted to join the sections. As a result, the two sections can be easily and reliably connected without using fixing means such as welding or fixing members such as rivets.

According to the second aspect of the present invention, after the notch is subjected to the torsion deformation by the notch, the locking portion provided at the engaging portion of the first shape member and the second shape material are joined together. Since the anti-rotation member is interposed between the outside of the connecting portion and the shape member, it is possible to further securely connect the shape members in addition to the above 1).

[Brief description of drawings]

FIG. 1 is a cross-sectional perspective view showing an example of a joint structure of a profile using the joint method of the present invention.

FIG. 2 is a perspective view showing a first profile according to the present invention.

FIG. 3 is a perspective view showing a second profile in the present invention.

FIG. 4 is a front view showing a state before the shapes are combined.

FIG. 5 is a front view showing a part of a joined state of the profile members in a cross section.

FIG. 6 is a side cross-sectional view of a joint state of the profile members.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 1st shaped material 1b Locking piece (locking part) 2 2nd shaped material 3 Hollow part 4 Hollow part 5 Deformation part 6 Insertion hole 6a Opening edge 15 Notch 16 Reverse rotation stopping member P Load θ angle

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[Procedure amendment]

[Submission date] August 31, 1995

[Procedure Amendment 1]

[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 6

[Correction method] Added

[Correction content]

[Figure 6]

Claims (2)

[Claims] 1. A method for joining cross sections of a second section to a first section, wherein the second section to be joined to the first section is non-circular in cross section. And a notch provided in the outer peripheral portion thereof. An insertion hole for inserting the second shape member is formed in the joint of the first shape member. By making a proper angle with respect to the state after the combination of the second section and by applying a rotational load to the second section inserted into the insertion hole of the first section in a direction intersecting the insertion direction. ,
A method for joining shapes, wherein the notches are subjected to twisting deformation to join the shapes. 2. A method for connecting a first shape member to a second shape member in a cross shape, wherein the second shape member to be connected to the first shape member has a non-circular cross section. And a notch is provided in the outer peripheral portion thereof, and an insertion hole for inserting and inserting the second shape member is formed in the coupling portion of the first shape member, and the insertion hole has a first shape. By making an appropriate angle with respect to the state after the two shape members are coupled, by applying a rotational load in a direction intersecting the insertion direction to the second shape member inserted into the insertion hole of the first shape member. ,
After the twisting is given by the notch, a reverse rotation preventing member is interposed between the locking portion provided on the engaging portion of the first profile and the outside of the coupling portion of the second profile, A method of joining sections, comprising joining sections.