JP3806863B2 - Profile connection device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a profile connecting device used when an extruded profile is connected via a connecting member to form a frame structure.
[0002]
[Prior art]
In order to connect hollow extruded shapes with connecting members, the Saddle-eye method has been conventionally used. In this case, however, the inserts of the connecting members are forcibly inserted into the extruded shapes as a dip. The method to do was common.
[0003]
[Problems to be solved by the invention]
In the above conventional shape member connection method, there is an error in the product dimensions, so that there is often a problem that it is difficult to insert at the time of connection and difficult to disassemble after connection, and conversely, a problem that the connection part easily comes off after connection. was there.
[0004]
SUMMARY OF THE INVENTION An object of the present invention is to provide a profile connecting device and an extruded profile in which a defect in the eyelash caused by a product dimensional error is eliminated.
[0005]
[Means for Solving the Problems and Effects of the Invention]
The profile connecting device according to the present invention is a device for connecting at least two hollow extruded profiles through a coupling member, and the coupling member is provided with an insertion portion to be inserted into the coupling end of each extruded profile. A protrusion that protrudes inward on the inner surface of the extruded profile, a groove that is provided adjacent to the protrusion and imparts an elastic force that deforms outwardly on the protrusion, and a protrusion that elastically deforms. A small ridge with a smaller protrusion amount is provided .
[0006]
According to the profile connecting device of the present invention, when the insertion part is inserted into the extruded profile, the protruding line is elastically deformed outward, so that the insertion force is small, and after the insertion, the protruding line returns to the original state. The elastic force to be prevented prevents the insertion portion from coming off. Since the force for preventing the insertion portion from coming off is an elastic force, the connection can be disassembled. Moreover, it is useful as a connection device for a structure in which the connection force is insufficient only with the elastic force and the frequency of decomposition is low.
The extruded profile according to the present invention has, on the inner surface, a protruding protrusion that protrudes inward, a groove that applies an elastic force to the protruding protrusion to deform outward, and a small protrusion that protrudes less than the protruding protrusion that elastically deforms. It is a hollow extruded section provided with a strip .
[0007]
According to the extruded profile of the present invention, when the extruded profiles having such a shape are connected to each other by the corresponding connecting members, when the insertion portion is inserted into the extruded profile, the ridge is elastically deformed outward. Therefore, the insertion force can be reduced, and after insertion, the insertion portion can be prevented from coming off by the elastic force that the ridge tries to return to its original position. And since the force which prevents the insertion part from coming off is an elastic force, it is possible to disassemble the connection. Moreover, it is useful as a connection device for a structure in which the connection force is insufficient only with the elastic force and the frequency of decomposition is low.
In the extruded profile connecting device and the extruded profile, the height of the small ridge is appropriately determined in consideration of the required coupling force and ease of disassembly.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
[0009]
As shown in FIG. 1, a profile connecting device according to the present invention is a device for connecting two hollow extruded profiles (1) via a coupling member (2), and each extruded profile (1) In addition, it is made of aluminum having a square cross section, and on its inner surface, a protruding strip (3) projecting inward, provided adjacent to the projecting strip (3) and deformed outward to the projecting strip (3). A groove (4) for applying an elastic force and a small protrusion (5) having a smaller protrusion than the elastically deforming protrusion (3) are provided, and the connecting member (2) is made of synthetic resin and is L-shaped. And has a cube-shaped corner portion (6) and two insertion portions (7) extending in a direction perpendicular to each other from the corner portion (6).
[0010]
The dimensions of each extruded profile (1) and connecting member (2) are such that, if there are no ridges (3) and (5), the Saddle-eye method is a gap, that is, the outer dimension of the insertion part (7) Is slightly smaller than the inner dimension of the extruded profile. Further, the outer dimension of the corner portion (6) of the connecting member (2) is determined in accordance with the outer dimension of the extruded shape member (1), and the insertion portion (7) of the connecting member (2) is the extruded shape material. When fitted into (1), both members (1) and (2) are dimensioned to be flush with each other.
[0011]
Each elastic deformation ridge (3) of the extruded shape (1) is provided in two symmetrically on each of the four surfaces, and each groove (4) is in contact with each ridge (3). It has the part opened inward and the part extended so that it might be located in the outward of each protrusion from this opening. These ridges (3) are arranged near the center of each surface, and the opening of each groove (4) is arranged inside the ridge (3). Each small protrusion (5) is arranged near the edge of each surface.
[0012]
When the insertion portion (7) of the connecting member (2) is inserted into the extruded profile (1), the elastically deformed ridge (3) is retracted into the groove (4) as shown in FIG. After insertion, the insertion portion (7) is prevented from coming out of the extruded shape member (1) by the elastic force to return to the original state. On the other hand, the small ridges (5) bite into the outer surface of the connecting member (2) and increase the difficulty of disconnection after connection. The height of these small ridges (5) is appropriately determined in consideration of the required connecting force and ease of disassembly.
[0013]
In addition, although the illustrated connecting member (2) is L-shaped, as the connecting member, in addition to this, an I-type in which insertion portions (7) are provided above and below the cube-shaped corner portion (6). The insertion part (7) is added to the L-shaped connecting member (2), and the insertion part (7) is added to the T-shaped or three-insertion part orthogonal type and the L-shaped connecting member (2). Various types such as a cross shape, a six insertion portion type in which the insertion portion (7) is provided on all surfaces of the cube-shaped corner portion (6) are used. And by using these connecting members properly and connecting a plurality of extruded shapes, a flat structure having one frame or a plurality of frames, a framework structure in which a large number of frames are combined three-dimensionally, etc. Various structures can be made.
[0014]
In addition to the combination that the extruded profile is made of aluminum and the connecting member is made of synthetic resin, both may be made of aluminum, or both may be made of synthetic resin.
[0015]
Furthermore, the extruded profile is not limited to a rectangular cross section, and may be a polygon other than a square or a circular cross section.
[0016]
An example in the case of a circular cross section is shown in FIG. In the figure, each extruded section (11) is made of aluminum or synthetic resin having a circular cross section, and on its inner surface, an inward projecting ridge (13) and adjacent to this ridge (13) And a groove (14) for applying an elastic force deforming outwardly to the ridge (13), and a small ridge (15) having a smaller projection than the elastically deformed ridge (13). ing. One pair of elastically deforming ridges (13), grooves (14) and small ridges (15) are arranged at 90 ° intervals. The action and effect when using the extruded section (11) having a circular cross section is exactly the same as when using the extruded section (1) having the square section. Of course, the number and interval of the ridges (13), grooves (14), and small ridges (15) may be other than this.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a profile connecting device according to the present invention.
FIG. 2 is a cross-sectional view of an extruded profile.
FIG. 3 is an enlarged cross-sectional view showing a main part of the profile connecting device.
FIG. 4 is a view corresponding to FIG. 2 showing another embodiment of the profile connecting device.
[Explanation of symbols]
(1) (11) Extruded profile
(2) Connecting member
(3) (13) Projection
(4) (14) Groove
(5) (15) Small ridge
(6) Insertion section

Claims (2)

An apparatus for connecting at least two hollow extruded shapes via a connecting member, wherein the connecting member is provided with an insertion portion to be inserted into a connecting end of each extruded shape, and is provided on the inner surface of the extruded shape. An inwardly projecting ridge, a groove provided adjacent to the ridge and imparting an elastic force to the ridge to deform outward, and a small ridge having a smaller projection than the elastically deformed ridge And a shape member connecting device. On the inner surface, a hollow provided with a protruding ridge projecting inward, a groove for applying an elastic force to the protruding ridge to deform outward, and a small ridge having a smaller protruding amount than the protruding ridge that is elastically deformed. Extruded shape.

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