JPS581198B2 - Hanger for plating - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a plating hanger in which a branch rod is firmly fixed to a main rod and has a metal coating layer.

Generally, this type of plating hanger hooks or clamps the object to be plated on the end of the branch rod, and also conducts current from the main rod to the branch rod, so the branch rod firmly adheres to the main rod without wobbling. It is required that the electrical resistance be as low as possible, that it be easy to manufacture, etc.

As a conventional plated hanger, a hole is drilled in the main rod,
After passing the branch rod through this, welding or crushing it is possible, but with this structure, if used for a long time, the branch rod may move in the axial direction and become loose, and the manufacturing process requires many steps. The drawback was that it required a lot of time and skill.

In addition, many branch rods are made of stainless steel that has a spring effect to hook or hold the object to be plated, but this has a relatively low electrical conductivity, which, combined with the wobbling of the fixed part, may cause problems with conventional plating. The disadvantage of hangers is that they have relatively high electrical resistance.

The present invention has been made to improve the above-mentioned conventional drawbacks, and by firmly fixing the branch rod to the main rod and providing a metal coating layer at predetermined locations, the present invention has low electrical resistance, no wobbling, and is easy to manufacture. The purpose of the present invention is to provide a hanger for plating that is easy to use.

Embodiments of the present invention will be described below with reference to the drawings.

In Figures 1 to 4, 1 has a hook-shaped portion 1a at the top.
2 is a stainless steel branch rod having a spring effect, and 3 is a stainless steel vertical rod with circular bent portions 4 and 5 formed at both ends.

A predetermined number of branch rods 2 intersect with the vertical rod 3, and are welded by spot welding or the like so that the center lines of the branch rods 2 and the vertical rod 3 are on the same plane at the intersection point P, as shown in Fig. 2. There is.

As shown in FIGS. 3 and 4, this vertical rod 3 and the portions of the branch rods 2 in the vicinity thereof are driven into the main rod 1 using a press or the like and fixed thereto.

The end portion 2a of the branch rod 2 is processed as appropriate depending on the shape of the object to be plated.

Reference numeral 6 denotes a copper coating layer, which is coated by thermal spraying on the upper surface 1b of the main rod 1 including the above-mentioned fixed portion and the portions of the branch rods 2 excluding the ends 2a.

Reference numeral 7 indicated by a dotted line is an insulating synthetic resin lining or coating layer that completely covers the copper coating layer and prevents corrosion of the copper and also prevents plating from being deposited on unnecessary areas.

According to the configuration of the embodiment described above, the following effects are achieved.

■ Since a predetermined number of branch rods 2 are welded to the vertical rods 3 in advance, all of the branch rods 2 can be driven and fixed to the main rod 1 in one driving operation, resulting in extremely high workability and work efficiency. There is.

■ Branch rod 2 and vertical rod 3 are welded so that their center lines are on the same plane, so even if a sudden large press is applied during driving, the welded part of branch rod 2 and vertical rod 3 will not change. If the branch rod 2 or vertical rod 3 is damaged, or the main rod 1
There is no decrease in strength.

As a result, the time required for driving can be considerably shortened, resulting in extremely good workability.

In addition, the branch rods 2 and vertical rods 3 can be driven uniformly and densely into the main rod 1, so-called good biting, so that the contact between the branch rods 2 and vertical rods 3 and the main rod 1 is good, and the solder buildup is improved. Work can also be saved.

■ In addition, all the branch rods 2 are welded to the vertical rod 3, and the mutual posture of the branch rods is fixed, so when driving, the branch rods 2
without moving independently or causing positional deviation.
They can be driven and fixed in a quiet position parallel to each other.

(2) Since bent portions are formed at least at both ends of the vertical rod, the branch rod can be firmly fixed to the main rod with little contact resistance.

That is, the bent portions 4 and 5 receive lateral force from the copper that enters the space surrounded by the bent portion during driving, and are firmly fixed with good contact, and the remaining copper swells upward and pushes against the bent portion. Since the upper part is covered, the contact with the main rod 1 becomes even better, and it is firmly fixed.

(2) Since bent portions 4 and 5 are formed at least on both ends of the vertical rod 3, there is no need to form bent portions on the branch rods, which simplifies processing operations.

In other words, since one vertical rod 3 is used for a large number of branch rods 2, the number of operations required to form a bent portion is far greater than when forming a bent portion for each branch rod. It takes less,
Further, the shape of the bent portion does not need to be unified, and may be formed into any shape, so rough processing is sufficient.

■ Since the copper is coated by thermal spraying, it is completely prevented that the branch rod 3 separates from the main rod 1, and it also eliminates the need to apply solder to improve the contact between the main rod 1 and the branch rod 3. .

Moreover, since copper has higher electrical conductivity than stainless steel, the electrical resistance of the plating hanger itself is also lower.

Therefore, a uniform plating layer can be provided on the object to be plated in a short time.

Note that the bent portions 4 and 5 at both ends of the vertical rod 3 may be formed in a triangular shape as shown in FIG. 5, for example, in addition to the circular shape described above.

Further, the bent portions only need to be formed at least at both ends of the vertical rod, and therefore, for example, a vertical rod that is entirely bent into a meandering shape as shown in FIG. 6 can be used.

Further, the material of the vertical rod is not limited as long as it is a metal material to which the branch rod can be welded.

Furthermore, the metal used for thermal spraying is not limited to copper, and any metal may be used as long as it has a higher electrical conductivity than that of the branch rod, for example.

As described above in detail, the present invention provides a plating hanger that exhibits excellent effects not seen in the prior art, such as having low electrical resistance, no rattling, and being easy to manufacture.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway overall perspective view showing an embodiment of the present invention, Fig. 2 A is a perspective view showing a welded portion of a branch rod and a vertical rod, Fig. 2 B
is a sectional view taken along the line X-X, FIG. 3 is a perspective view of the whole with a partial cutout showing the state before driving, FIG. 4A is a perspective view of the main part showing the state after driving, and FIG. The sectional view and FIGS. 5 and 6 are front views of main parts showing other embodiments of the present invention. 1... Main rod, 2... Branch rod, 3...
...Vertical rod, 6...Metal coating layer.

Claims (1)

[Claims] 1. A predetermined number of branch rods are welded so as to be on the same plane as the vertical rod, intersecting with a vertical rod having bent portions formed on at least both ends, and the vertical rod and the branch rod portions in the vicinity are mainly welded. A hanger for plating, which is driven and fixed to a rod, and at least the fixed part is provided with a metal coating layer by thermal spraying.