JP2591516B2 - How to join sections - Google Patents

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 join the shaped members as described above, generally, fixing means such as welding or bonding, rivets,
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, in connection by fixing means such as welding or bonding, it is difficult to increase the dimensional accuracy of the joint, 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, a first method for connecting a profile to a first profile is a method for connecting a second profile to a first profile in an intersecting manner. Assuming a joining method, 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 an 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 the insertion direction, thereby giving a prying deformation by the notch, and deforming the profile. 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 profile members are connected via a reverse rotation preventing 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
An angle is appropriately given to the state after the combination of the second section,
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).

[0009] After the torsion deformation is given by the notch, the reverse rotation stopping member is provided between the engaging portion provided at the engaging portion of the first section and the outside of the connecting section of the second section. The shape members can be more reliably joined by interposing the intervening member (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 joining structure of a profile according to the joining method of the present invention, FIG. 2 is a perspective view of a first profile in the present invention, and FIG. 3 is a second profile in the present invention. It is a perspective view of.

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.
In this case, a rotational load P is applied to the second shaped member 2 to give a deformation for joining.

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 the second section 2 is inserted into the hollow portion 3 of the first section 1 through the insertion hole 6, the insertion direction is inserted into the second section 2. When a rotational load P is applied in a direction intersecting (for example, perpendicularly to) the notch 15, the notch 15 rotates while prying the opening edge 6a of the insertion hole 6. In this way, by rotating the second section 2 by the angle θ, a twisting deformation 5 is given to the opening edge 6a, and the notch 15 and the opening edge of the insertion hole 6 are engaged by the twisting deformation 5, so that the second The first profile 1 and the second profile 2 can be combined.

In this case, if the second section 2 is reversely rotated after being deformed, the connected state may be released. Therefore, after the second section 2 is rotated and deformed, the reverse rotation preventing member 16 is connected to the upper and lower ends of the first section 1. It is preferable to interpose between the pair of L-shaped locking pieces 1b (locking portions) provided on the second member 2 and the second shaped 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 is provided in a concave groove 1c inside the locking piece 1b. Any of prismatic members may be used. Although the rotation angle of the second section 2 is arbitrary, the inclination angle θ of the insertion hole 6 is
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 section 1 is a hollow section having a closed cross section has been described. For example, the first section 1 is formed of a hollow section having a C-shaped open section. 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 profiles according to 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 the 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 according to 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

Claims (2)

(57) [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 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. ,
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.