JPS6311090B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for clinching a buttful for use in lighting fixtures such as fluorescent lamp fixtures.

As is well known, a large number of buttfuls are arranged side by side in a direction intersecting the fluorescent lamp and used so as to face each other. In order to arrange such buttfuls side by side, tongue pieces are provided at both ends of each buttfull, and these are inserted into a slit-shaped hole provided in one of the opposing side plates, and the tip of the tongue piece pulled out from this hole. caulk against the side plate by bending it along the outer surface of the side plate. In this way, the buttful is fixed to the side plate, but when bending and caulking the tongues, if you bend them one by one, it will take a long time to bend all the tongues. death,
It is inefficient, and if all the tongues are bent at the same time, the force required for the bending becomes extremely large, the bending mechanism becomes complicated, and a large driving mechanism is required. .

An object of the present invention is to save labor in caulking when fixing a buttful to a side plate.

Embodiments of the invention will be described below with reference to the drawings.
Reference numeral 1 denotes a full-length body, and tongue pieces 2 are integrally formed at both ends thereof. Reference numeral 3 designates a pair of side plates in which a slit-like small hole 4 is formed. Each tongue piece 2 is then inserted into the small hole 4 of each side plate 3, and the tip of the pulled out tongue piece 2 is bent and caulked along the outer surface of the side plate 3. These structures are as described above and are well known.

Incidentally, in order to facilitate caulking using a roller to be described later, it is preferable that the tongue portion 2 of each baffle 1 be slightly inclined with respect to the surface of the buffle 1 in advance. When inserting this into the small hole 4 of the side plate 3, as shown in FIG. Insert it so that it is opposite. In the example shown in the figure, 12 Boutful 1's are used, of which 6 Boutful 1's in the left half are arranged so that the tongue part 2 is inclined to the right, and 6 B'tuful 1's in the right half are arranged so that the tongue part 2 is inclined to the right.
are inserted so that the tongue part is inclined to the left.

Reference numerals 5 and 6 denote slide bars, each of which has a substantially U-shape, and is slidable along the longitudinal direction of the side plate 3. Specifically, the left slide bar 5 is driven to the right, and the right slide bar 6 is driven to the left by, for example, an air cylinder. Of course, it is also possible to slide to return in the opposite direction.

Each arm 7, 8 of each slide bar 5, 6 faces the outside of the side plate 3, and each arm 7, 8 of each slide bar 5, 6 faces the outside of the side plate 3.
8 supports a plurality of bending rollers 9 and 10 (half the number of bending rollers in the illustrated example) for bending the tongue portion so as to push it down. According to the invention, when the slide bar is slid, all the bending rollers are prevented from coming into contact with the tongue portion 2 at the same time and bending it. In the illustrated example, as the slide bar moves, two bending rollers contact the tongue portions one after another and bend the tongue portions.

To explain this more specifically, the bending rollers supported by the arm 7 in FIG.
When the 5th and 2nd bending rollers 9 are in a position approaching the tongue portions 2 of the 1st and 2nd thick full 1 from the back side, counting from the left, the 5th and 6th bending rollers 9 The rollers are placed on the fifth and sixth tongues at a sufficient distance from their back surfaces, and the third and fourth bending rollers are placed on the third and third tongues.
It is installed at a position that is halfway away from the back surface of the third and fourth tongue pieces. In other words, as shown in the figure, the first (second) bending roller
When the third (fourth) bending roller is in a position sufficiently close to the back surface of the third (second) tongue piece, the third (fourth) bending roller is closer than the third (fourth) bending roller.
The fifth (sixth) bending roller is further away from the back surface of the fifth (sixth) tongue portion than this distance. It is as it is.

If we organize the above configuration, one of the bending rollers
All the bending rollers are divided into a plurality of groups, with one or more bending rollers (two in the example shown) being considered as one group, and the distance between the bending rollers belonging to each group and the opposing tongue piece is It can be said that each bending roller is installed differently in each case. Furthermore, arm 8
It goes without saying that the bending roller 10 supported by the bending roller 10 is arranged in the same positional relationship as the bending roller 9.

In the above configuration, when the slide bars 5 and 6 are simultaneously pushed in the arrow directions (mutually opposite directions), the bending rollers 9 and 1
0, the first and second bending rollers are the first
Fold the second and second tongue pieces. This bending is performed along the outer surface of the side plate 3, whereby each tongue portion is caulked. Note that at this point, the third and subsequent bending rollers have not reached the position where they bend the third and subsequent tongue portions. However, the distance between them should be shorter than the distance before the slide bars 5 and 6 started pushing.

As the slide bars 5 and 6 continue to be pushed, the third and fourth bending rollers bend the third and fourth tongue portions. As the slide bars 5 and 6 continue to be pushed, the fifth and sixth bending rollers bend the fifth and sixth tongue portions. These folding steps will be easily understood from the foregoing description. According to this kind of bending, two tongues on one side and four tongues on both sides are bent in one bending process, so the driving force of the slide bar is small compared to bending many tongues at the same time. I'll try it. Furthermore, since the slide bars 5 and 6 are driven in opposite directions, the forces acting on the side plate 3 during the bending process cancel each other out. Therefore, it is not necessary to support the side plate 3 during processing, or it is sufficient to support it with a slight force.

Note that during this processing, the back side of the bent full 1 may be bent. In order to prevent this, it is preferable to install a support plate 11 on the back of each buttful. At the same time, a suitable presser plate may be pressed against the upper surface of the buttful.

As described in detail above, according to the present invention, the force required for caulking the buttful to the side plate can be reduced, and the mechanical support of the side plate can also be simplified.

[Brief explanation of the drawing]

Fig. 1 is a plan view showing the caulking process according to the present invention, Fig. 2 is an enlarged plan view of a part of Fig. 1, Fig. 3 is a front view of the buttful, Fig. 4 is a side view of the same, and Fig. 5 is an enlarged plan view of a part of Fig. 1. It is a perspective view of a side plate. 1... Batsuful, 2... Tongue piece, 3... Side plate,
5, 6...Slide bar, 9, 10...Bending roller.

Claims (1)

[Claims] 1 In a method of inserting the tongue pieces provided at both ends of the buttful into the pair of side plates, and bending and caulking the extracted tongue pieces by pressing down with a bending roller, A plurality of the bending rollers are installed on each pair of sliding bars that are driven to slide, and
One or more of the plurality of bending rollers installed are regarded as one group, and divided into a plurality of groups, and the bending rollers belonging to the group are sequentially selected for each group according to the slide of the slide bar. A full caulking method in which the tongue portion is bent and caulked.