JP2001271812A - Assembling pin for aluminum fittings - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an assembling pin for aluminum fittings to facilitate assembling, to enhance work efficiency, and to guarantee smooth operation after assembling. SOLUTION: This assembling pin is so-structured with an insertion introducing part 6r being provided at its tip, an expanded outer diameter part 6a, 6b are subsequently provided by forming an axial projecting bar by a knurling process, and a head part 6h is provided at its rear end. It is also so structured, that if necessary, subsequently to the insertion leading part 6r, the expanded outer diameter parts 6a, 6b are provided one by one at the front and back of a straight part 6s, so as to sandwich the straight part, and the length of the insertion leading part 6r gets longer than the length from the front of the expanded part 6a to the joint of the head part 6h. This assembling pin 6 for aluminum fittings is applied for assembling the fins of a louver.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pin used for assembling a fitting made of aluminum.

[0002]

2. Description of the Related Art A fitting material made of aluminum is provided with a ridge having a cross-sectional shape so as to enclose a screw or a pin as shown in FIG. The screw is screwed into this screw hole, and the window frame or louver is assembled.

[0003] Although assembling of a window frame does not seem so difficult, louvers, particularly louvers having ventilation and lighting adjustment functions, have many components and their structures are complicated, so that assembling becomes difficult.

[0004]

That is, as shown in FIG. 1, a screw hole 4 provided at a fulcrum of the fin 1 extends from the through hole 5a of the frame 2 as shown in FIG.
The screw is screwed into the screw hole 7 at the action point of the fin 1 via the through hole 21 of the connecting rod 3 and the arc-shaped long hole 8a of the frame 2.

[0005] This operation must be performed on all of the many swinging fins, and the above operation must also be performed on the opposite side that does not appear in FIG. 1. The adjusting means 10 must be mounted on the other side of the frame 2 with the screw 11, which is extremely difficult in an assembling operation using ordinary screws. Disappears.

[0006] In view of the above-mentioned problems of the prior art, the present invention provides an aluminum fitting assembling pin which facilitates assembling an aluminum fitting, improves work efficiency, and ensures smooth operation of the assembled fitting. Make it an issue.

[0007]

In order to solve the above-mentioned problems, the present invention provides an insertion leading portion at the tip, and subsequently forms an axially convex ridge by knurling to form an outer diameter bulging portion. At least one location is provided, and a head is provided at the rear end. Further, if necessary, the outer diameter bulging portion is provided before and after the straight portion with the straight portion interposed therebetween, following the insertion guiding portion, and the length of the insertion guiding portion is increased from the forward outer diameter bulging portion to the head. It is configured to be longer than the length to the base of the part.

Further, the aluminum fitting assembling pin having the above-described structure is applied to a louver fin assembly.

In the present invention configured as described above,
The plug-in introduction makes it easy to assemble many complex and tentative parts, and this tentative assembling makes it possible to check the alignment of the entire part assembly.
Since the outer diameter bulging portion of the axial ridge can be assembled and fixed without screwing, the assembly is completed without breaking the above alignment state, and after assembly, each part is well aligned, and the state is Assured, smooth movement of each part is guaranteed.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment in which the present invention is applied to louver assembly will be described with reference to the drawings.

In FIG. 1, 1 is a fin, 2 is a frame, 3
Is a connecting rod for transmitting motion to each fin 1, and 10 is a fin 1
Is angle adjustment means for adjusting the inclination angle of.

The angle adjusting means 10 comprises a lever 12, a handle 19, and a case provided with an arc-shaped long through hole 8b.
The frame 2 is mounted on the other side of the frame 2 by screws 11, and the frame 2 also has an arc-shaped long hole 8a.

Here, a pin 6 is fitted into the screw hole 4 at the fulcrum of the fin 1 through the through hole 5a of the frame 2, and
The pin 6 is fitted into the screw hole 7 at the point of action through the through hole 21 of the connecting rod 3 and the arc-shaped long through hole 8a. Here, an angle adjusting means 10 is interposed between the fin 1 a representing the group and the frame 2.

The screw holes 4 at the fulcrum of the fin 1 and the pins 6 to be driven into the screw holes 7 at the action point form a leading portion 6r having a straight (small outer diameter) tip, and then form a ridge 9 by knurling. A bulging portion 6a, a portion rotating with the frame 2 is a straight portion 6s which does not hinder rotation, and a portion fitted to the connecting rod 3 forms an axial ridge 9 on the outer peripheral surface. As the bulging portion 6b, the bulging portion 6a of the ridge 9 penetrates into the screw hole 4 at the fulcrum and the screw hole 7 at the action point, and the bulging portion 6b of the ridge 9 extends into the through hole 21 of the connecting rod 3. It is fixed by biting.

Here, the pin 6 is inserted into the insertion introduction portion 6.
Since r is long, it is temporarily inserted from the through hole 21 of the connecting rod 3 to the screw hole 7 at the action point of the fin 1 through the arc-shaped long hole 8a of the frame 2, and the same operation is performed for the other fins 1. The same operation is repeated for the fins 1a representative of the group with the angle adjusting means 10 interposed therebetween, and the tentatively inserted pins can be easily assembled in a state where the entire fins 1a are aligned.

Although the above embodiment has been described with respect to the example of assembling the louvers, the present invention can be appropriately utilized in other cases.

[0017]

As described above, according to the present invention,
When assembling a louver, the number of parts is large, the structure is complicated, and it is necessary to assemble the entire body without losing it.
After the alignment is confirmed, fixing is performed, so that it is possible to assemble easily, quickly, and without stiffness. In particular, since the protrusions are provided by forming ridges in the axial direction on the surface of the pin by knurling, the screwdriver operation is eliminated, and the state of the temporary assembly is not lost, and the assembly can be performed quickly.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a louver using a pin of the present invention.

FIG. 2A is a front view of a pin, and FIG.

FIG. 3 is a sectional view of a main part.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Fin 1a Fin (angle adjustment means side) 2 Frame 3 Connecting rod 4 Screw hole of fulcrum 5a Through hole of fulcrum of frame 5b Through hole of angle adjustment means 6 Pin 6a 6b Swelling portion 6h Pin head 6s Straight part 6r Insertion introduction part 7 Screw hole at action point 8a Arc-shaped long hole (frame side) 8b Arc-shaped long hole (angle adjustment means side) 9 Convex ridge 10 Angle adjustment means 11 Screw 12 lever 19 Handle

Claims (3)

[Claims] 1. An insertion introduction portion is provided at a front end, followed by forming an axial ridge by knurling to provide at least one outer diameter swelling portion and a head portion at a rear end. Aluminum fitting assembly pin. 2. The method according to claim 1, wherein the outer diameter swelling portion is provided before and after the straight portion with the straight portion sandwiched between the insertion introducing portion. The aluminum fitting assembling pin according to claim 1, wherein the length is longer than a length from the protruding portion to the base of the head. 3. A louver fin mounting structure, wherein the aluminum fitting assembling pin according to claim 1 or 2 is applied to louver fin assembly.