JPH0971173A - Panel coupling device - Google Patents

Abstract

(57) An object of the present invention is to enable members to be easily and surely connected to each other even if there is a slight difference in diameter of a through hole formed by a connecting groove in a member such as a panel. SOLUTION: Of the side edges of the adjacent members 1 and 2, which are opposed to each other, a fitting concave portion 3 is provided on a side edge portion of one member 1, and a fitting convex portion 4 is provided on a side edge portion of the other member 2. The fitting concave portion 3 and the fitting convex portion 4 are fitted to each other, and the coupling grooves 7 face each other on the inner surfaces of both sides of the fitting concave portion 3 and the outer surfaces of both sides of the fitting convex portion 4 and each member 1 and 2 Is provided over the entire length of
A tapping screw 9 is pressed into both ends of a through hole 8 formed by these coupling grooves 7.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coupling device for a panel used as a tailgate lifter in a truck bed or a sewer cover plate.

[0002]

2. Description of the Related Art As a joining device for panels constituting a tailgate lifter or the like in a truck bed, among side edges of adjacent panels, a fitting concave portion is provided on one side edge portion of the other panel. Fitting protrusions are provided on the side edges of the panel, and the fitting recesses and the fitting protrusions are fitted together.There are coupling grooves on the inner surfaces on both sides of the fitting recesses and on the outer surfaces on both sides of the fitting protrusions. It is already known that the connecting pin is press-fitted over the entire length of the through hole formed by these connecting grooves.

[0003]

However, in the above case, since the diameter of the through hole formed by the connecting groove in each panel is slightly different depending on the accuracy at the time of manufacturing each panel, In some cases, the panels cannot be easily and reliably joined together by press-fitting the joining pins.

Specifically, when the diameter of the through hole is smaller than the predetermined diameter, the connecting pin is difficult to enter into the hole, so that it takes a considerable time to press-fit the connecting pin. On the other hand, when the diameter of the through hole is larger than the predetermined diameter,
Although the press-fitting of the connecting pin can be easily performed, the connection between the panels becomes loose and both panels tend to be displaced from each other in the longitudinal direction.

Further, once the coupling pin was press-fitted into the through hole, the panels could not be separated from each other again.

The present invention has been made in order to eliminate such various inconveniences, and even if the diameter of the through hole formed by the coupling groove in the member such as the panel is slightly different, the member is It is an object of the present invention to provide a coupling device that can easily and surely couple each other.

[0007]

SUMMARY OF THE INVENTION In order to achieve the above object, the coupling device of the present invention has a fitting recess at the side edge of one of the opposing side edges of adjacent members and the other at the other side edge. The fitting convex portions are provided on the side edge portions of the member, the fitting concave portions and the fitting convex portions are fitted to each other, and the coupling grooves are formed on the inner surfaces on both sides of the fitting concave portions and the outer surfaces on both sides of the fitting convex portions. The tapping screws are pressed into both ends of the through holes formed facing each other and over the entire length of each member and formed by these coupling grooves.

The shape of the through hole is not limited to a circular shape, but may be any shape as long as the tapping screw can be pushed in.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments in which the present invention is applied to the joining of panels made of extruded aluminum profiles will be described below with reference to the drawings.

In the drawings, a fitting recess (3) is formed in the side edge of one panel (1) among the side edges facing each other of the adjacent panels (1), (2) and the other panel (2). Convex fitting on side edge (4)
Side walls (5) are provided on both sides of the fitting concave part (3), and side wall removal preventing ridges (6) are provided on both sides of the fitting convex part (4). Installed in parallel with (4), the fitting recess (3) of one panel (1) and the fitting projection (4) of the other panel (2) are fitted together, and the side wall (5) for insertion
Is inserted between the fitting protrusion (4) and the side wall disengagement prevention ridge (6), and is connected to both inner surfaces of the fitting recess (3) and both outer surfaces of the fitting protrusion (4). Grooves (7) are provided facing each other and over the entire length of each panel (1) (2).
The tapping screw (9) is pushed into both ends of the through hole (8) formed by (7), and the connecting pin (10) is previously inserted between both tapping screws (9) in the through hole (8). It is press-fitted.

Small protrusions (11) are provided on both side edges at the tip of the fitting convex portion (4) of the panel (2) over the entire length of the panel (2), and the fitting concave portion of the panel (1) ( A groove portion (12) into which the small protrusion (11) can be fitted is formed in 3).

In the case of the present embodiment, the adjacent panel (1) and panel (2) are brought close to each other in the directions of the arrows (A1) and (A2), and the fitting concave portion (3) and the fitting convex portion (4) are While fitting together, insert the side wall part (5) with the fitting convex part (4) and the convex part for preventing the side wall part from coming off.
Insert the small pin (11) into the groove (12), and then insert the connecting pin (10) into the through hole (8) formed by the facing connecting groove (7). Pressed into the through hole (8) where the connecting pin (10) is not pressed in tapping screws (9)
Both panels (1) and (2) can be joined by pushing.

A small protrusion (11) on the fitting protrusion (4) of the panel (2) is provided in the groove (12) of the fitting recess (3) of the panel (1).
Due to the structure in which the small projection (11) is pushed in when the tapping screw (9) is pushed in, the inner surface (1
It is received by 2a), and as a result, the small projection (11) is prevented from being deformed in the arrow direction (B).

In this embodiment, the connecting pin (10) is inserted in the through hole (8).
Was press-fitted, but without tapping the pin, tapping screw
In some cases, the members such as panels may be joined together only by (9).

[0015]

According to the joining device of the present invention, the fitting concave portion of one member and the fitting convex portion of the other member are fitted to each other, and both end portions of the through hole formed by the joining grooves of both members are fitted. Both members can be connected simply by pushing the tapping screw into. In this case, even if the diameter of the through hole is slightly larger or smaller than the predetermined diameter, tapping with the tapping screw is performed on the through hole, and the two members are joined together. Therefore, unlike the prior art, it does not take a long time to join the two members, or the two members are not loosely joined so that the two members do not shift in the longitudinal direction. Further, in the coupling device of the present invention, basically, since the members can be coupled only by the tapping screw without using the coupling pin which was indispensable in the past, once the tapping screw is removed, It is also possible to separate the joined members again.

[Brief description of drawings]

FIG. 1 is a vertical sectional view showing an embodiment of a coupling device of the present invention.

FIG. 2 is a sectional view taken along line II-II in FIG.

[Explanation of symbols]

 (1) (2): Panel (3): Mating recess (4): Mating projection (7): Coupling groove (8): Through hole (9): Tapping screw

Claims (1)

[Claims] 1. A fitting recess (3) is provided on a side edge of one member (1) of the side edges of the adjacent members (1) and (2) facing each other, and a side of the other member (2). Fitting protrusions (4) are respectively provided on the edges, and the fitting recesses (3) and the fitting protrusions (4) are fitted to each other, and both inner surfaces of the fitting recesses (3) and the fitting protrusions (4) are fitted. Grooves (7) facing each other are provided on both outer surfaces of each member over the entire length of each member (1) (2), and both end portions of the through hole (8) formed by these joining grooves (7). A coupling device such as a panel, in which the tapping screw (9) is pressed.