JPS581197B2 - 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.

In general, 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 stiff, 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 is a main rod made of copper with a hook-shaped portion 1a formed on the upper part, 2 is a branch rod made of stainless steel having a spring effect, and 3 is a stainless steel rod bent in an S-shape. It is a member.

As shown in Fig. 2, two branch rods 2 are intersected by one member 3 and welded by spot welding or the like at the intersection P so that their center lines are on the same plane as the center line of the member 3. ing.

A plurality of units are arranged along the longitudinal force direction of the main rod 1 as shown in Fig. 3, and each unit is sequentially pressed and fixed to the main rod 1 as shown in Fig. 4. ing.

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 4 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.

5 indicated by the dotted line is an insulating synthetic resin lining or coating layer that completely covers the main rod and branch rods except for the ends and the copper coating layer, which prevents corrosion of the copper and also prevents unnecessary parts from being coated. Prevents plating.

The configuration of the embodiment described above provides the following effects.

■ Since the plurality of branch rods 2 are pre-welded to the member 3 as a set, there is no need to fix the posture of each branch rod or each individual so that they do not move during driving, which simplifies the driving work. be.

At the same time, the number of times of driving a predetermined number of branch rods can be done for each unit, so the number of times of driving is very small.

■ Since the branch rod 2 and member 3 are welded so that their center lines are on the same plane, the welded part of the branch rod 2 and member 3 will not be damaged even if a sudden large press is applied during driving. or the branch rod 2 or member 3 is broken, 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 rod 2 and the member 3 can be driven uniformly and densely into the main rod 1, and the so-called biting is good.
Also, the contact between the member 3 and the main rod 1 is improved, and soldering work can be omitted.

■ Branch rod 2 and member 3 of each unit always intersect,
Since they are integrally driven into the main rod 1, movement of the branch rod 2 in the axial direction is reliably prevented by the member 3.

Further, as shown by A in FIG. 2, the member 3 and the branch rod 2 form a closed loop, so that the copper is well-filled and firmly fixed during driving.

Therefore, the electrical contact resistance between the main rod 1 and the branch rods 2 is small, and the required current can be supplied from the main rod 1 to the object to be plated through the branch rods 2 without loss.

■ Since the copper is coated by thermal spraying, it is completely prevented that the branch rod 3 separates from the main rod 1, and the work of applying solder to improve the contact between the main rod 1 and the branch rod 3 can be omitted. .

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.

In addition, in the present invention, the members to which the branch rods are welded may be C-shaped members, as shown in FIG. It may be 4 pieces.

This member is not limited to any metal material as long as it can weld the branch rod.

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

As detailed above, according to the present invention, the electrical resistance is low;
To provide a plating hanger that exhibits excellent effects not found in conventional examples, such as being free from rattling and being easy to manufacture.

[Brief explanation of drawings]

Fig. 1 is a partially cutaway overall perspective view showing an embodiment of the present invention, Fig. 2A is a perspective view showing a welded part between a branch rod and a member, and Fig. 2B is a perspective view showing an embodiment of the present invention.
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 figure B is its Y-Y The sectional view and FIGS. 5 and 6 are front views of essential parts showing other embodiments of the present invention. 1... Main rod, 2... Branch rod, 3...
... Member, 4... Metal coating layer.

Claims (1)

[Claims] 1 Multiple branch rods are crossed over one member and welded so that they are on the same plane as this member, and each unit is arranged along the longitudinal direction of the main rod. A hanger for plating, in which the member and the branch rod portion in the vicinity thereof are driven into and fixed to the main rod, and at least the fixed portion is provided with a metal coating layer by thermal spraying.