JPH026838B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method for plating an adjustable spanner.

(Prior Art) A monkey spanner has a spanner main body 3 having an upper jaw 1 and a handle 2, as shown in FIGS. 10 to 12.
and a lower jaw 5 on which a rack 4 is formed. The jaw 5 is slidably assembled to the spanner body 3 so as to move toward and away from the upper jaw 1, and the rack 4 of the lower jaw 5 is attached to the opening window 10 of the spanner body 3.
The worm 11 is detachably attached to the screw shaft 12 so as to mesh with the screw shaft 12, and the lower jaw 5 is moved toward and away from the upper jaw 1 by rotating the worm 11 around the screw shaft 12. There is. Both surfaces of the upper jaw 1 side and the lower jaw 5 of this spanner body 3 in the thickness direction (the portions indicated by hatching in FIG. 12) are polished so as to be continuous with both.

Incidentally, the surfaces of the spanner main body 3 and the lower jaw 5 are electrogalvanized, but since electroplating is performed on a large number of spanner bodies 3 and the lower jaws 5 at the same time, the spanner main body 3 and the lower jaw 5 are If electroplating is performed while separated, the lower jaw 5 that corresponds to the spanner body 3 will not be able to be identified, and when combined, the polishing process applied to both the upper jaw 1 side and the lower jaw 5 of the spanner body 3 will be removed. Inconsistency occurs, and the appearance becomes very poor due to subtle differences in smoothness, gloss, etc. that appear on the polished surface. Therefore, conventionally, as shown in FIG. 10, the lower jaw 5 and worm 11 were attached to the spanner body 3 and electroplated.

(Problem to be Solved by the Invention) However, in the conventional case, as shown in FIG. , most of the shaft part 6 and neck part 7 of the lower jaw 5 are inserted into the insertion hole 8 and the groove 9, and in this case, as shown in FIG. By tightly fitting the thick portion 7a into the recessed groove 9, the lower jaw 5 is prevented from wobbling in the thickness direction with respect to the spanner body 3. A large amount of electric shadow is generated in the area where the main body 3 and the lower jaw 5 overlap,
There were many areas where the galvanizing did not adhere.

In view of the above-mentioned problems, the present invention is designed to reliably and effectively perform electroplating in a state where the spanner body 3 and the lower jaw 5 are connected and without creating any parts where plating does not adhere.

(Means for solving the problem) The technical means of the present invention for solving this technical problem includes a spanner main body 3 having an upper jaw 1, and a wrench main body 3 connected to the upper jaw 1. The lower jaw 5 and the lower jaw 5 are slidably assembled together so as to be separated.
A worm 11 is detachably attached to an opening window 10 of the spanner body 3 so as to engage with a rack 4 formed in the wrench, and by rotating the worm 11, the lower jaw 5 is brought into contact with the upper jaw 1. In a method of plating a monkey wrench configured to move away, both sides of the upper jaw 1 side and lower jaw 5 of the spanner body 3 are continuously polished, and then a lock is removably attached to the opening window 10. By engaging the member 15 with the trough 4a at the final end of the rack 4 on the upper jaw 1 side, only the trough 4a at the final end opens into the opening window 10.
With the lower jaw 5 spaced far apart from the upper jaw 1 so that the lower jaw 5 is located inside the wrench body 3,
Then, the spanner body 3 and the lower jaw 5 are placed in plating liquid 20 and electroplated on the surface thereof, and then the locking member 1 is connected to the spanner body 3.
5 and attach the lower jaw 5 and worm 11 to the main body 3.
The point is that it can be assembled.

(Example) The present invention will be described below with reference to the illustrated embodiments. In manufacturing a monkey spanner, first, the spanner body 3 and the lower jaw 5 are separately formed by casting or the like, and then the spanner body 3 and the lower jaw 5 are separately formed. Polishing is performed on both sides of the upper jaw 1 side and the lower jaw 5 in the thickness direction of 3 so as to be continuous with both.

Thereafter, as shown in FIG. 1, with the screw shaft 12 and worm 11 removed from the spanner body 3,
Valley 4 at the final end of the rack 4 on the upper jaw 1 side of the lower jaw 5
The lower jaw 5 is spaced apart from the upper jaw 1 by a large distance so that only the opening 10 of the spanner main body 3 is located, and in this state, the locking member 15 is removably attached to the opening 10, and the locking Locking part 1 of member 15
6 is engaged with the valley portion 4a at the final end. As a result, the lower jaw 5 is removably connected to the spanner main body 3 in a state where the lower jaw 5 is separated from the upper jaw 1 by a large distance so that only the valley portion 4a at the final end is located within the opening window 10. be. In this case, more than half of the shaft part 6 and neck part 7 of the lower jaw 5 protrude outward from the insertion hole 8 and the groove 9, and at this time, as shown in FIG. Meat part 7
Since a is removed outward from the concave groove 9, the lower jaw 5 can largely rattle against the spanner body 3 in the thickness direction. The locking member 15
is made by bending an elastic wire as shown in FIG.
A clamping part 1 that clamps the opening window 10 line part in the thickness direction.
7 and 18, and an engaging portion 19 that is inserted into and engaged with the insertion hole 8 from the opening window 10.

Next, with the spanner main body 3 and the lower jaw 5 connected by the locking member 15 as described above, the spanner body 3 and the lower jaw 5 are placed in a plating solution, and the surface thereof is electrolytically galvanized. In this electroplating, for example, as shown in FIGS. 4 and 5, a zinc plate 22 and a rotating cage 24 are arranged in a galvanizing solution 20, and the zinc plate 22 is placed between an anode electrode and a rotary cage 24.
At the same time, the rotating cage 24 is connected to the cathode electrode 26, and the rotating cage 24 accommodates a large number of spanner bodies 3 and lower jaws 5 connected to each other as a set, and the rotating cage 24 is rotated around the axis. While rotating, the surfaces of the spanner body 3 and lower jaw 5 are electrogalvanized. Further, as shown in FIGS. 6 and 7, by suspending the set of the spanner body 3 and the lower jaw 5 in the plating liquid 20 via a number of hanging tools 27 on the cathode electrode 26 side, these The spanner body 3 and the lower jaw 5 may be electrogalvanized. When electroplating is performed in such a connected state, the lower jaw 5 protrudes outward from the spanner body 3 to a large extent, and the lower jaw 5 is loose in the thickness direction relative to the spanner body 3, so that the spanner body 3 and the lower Even though the jaws 5 are connected to each other, there are almost no parts that are affected by electricity, and the entire surface of the spanner body 3 and the lower jaw 5 can be galvanized reliably and satisfactorily.

After that, the spanner body 3 was electrogalvanized.
Remove the locking member 15 from the wrench, and as shown in FIG.
Assemble 1.

FIG. 8 and FIG. 9 show another embodiment, in which the locking member 15 is connected to a holding cylinder 30, a locking shaft 31 held in the holding cylinder 30 so as to be able to move in and out, and an engagement shaft 31.
It consists of a pressing spring 32 that urges the holding cylinder 30 to protrude outward from the holding cylinder 30, and a locking ring 34 that is externally fitted into a fitting groove 33 of the holding cylinder 30. Then, by fitting the holding cylinder 30 into the opening window 10 and fitting the engagement shaft 31 into the mounting hole 36 for inserting the screw shaft 12 of the main body 3, the locking member 15
is detachably attached to the opening window 10, and in this state,
The locking ring 34 is engaged with the trough 4a of the rack 4 to connect the spanner main body 3 and the lower jaw 5. The other points are the same as those of the previous embodiment, and the entire surface of the spanner body 3 and lower jaw 5 can be reliably galvanized.

In the above embodiment, the spanner main body 3 and the lower jaw 5 are electrogalvanized, but the electroplating is not limited to zinc, and electroplating of nickel or other materials may be used.

(Effects of the Invention) According to the present invention, the spanner main body 3
Since the lower jaw 5 and the lower jaw 5 are electroplated, there is almost no part that will be in the shadow of electricity during electroplating.
The spanner body 3 and the lower jaw 5 can be reliably and well electroplated over the entire surface, and after electroplating, the lower jaw 5 corresponding to the spanner body 3 can be easily identified, and the upper jaw 1 of the spanner body 3 can be easily identified. There is no fear that there will be a discrepancy between the polishing processes performed on both sides and the lower jaw 5.

[Brief explanation of drawings]

1 to 7 show an embodiment of the present invention,
Figure 1 is a side view of the lower jaw connected to the spanner body, Figure 2 is a sectional view taken along line A-A in Figure 1, Figure 3 is a perspective view of the locking member, and Figure 4 is the electroplating tank. 5 is a sectional view of the same side, FIG. 6 is a front sectional view of another electroplating tank, and FIG. 7 is a sectional view of the same side. FIG. 8 is a side view of another embodiment in which the lower jaw is connected to the spanner body, and FIG. 9 is a side sectional view of the locking member. Fig. 10 is a side view of a monkey spanner for explaining a conventional example, Fig. 11 is a view taken along the line B--B in Fig. 10, Fig. 12 is an exploded side view of the monkey spanner, and Fig. 13 is a side view of the same monkey spanner. 10 is a sectional view taken along line CC in FIG. 10. FIG. 1... Upper jaw, 3... Spanner body, 4... Rack, 4
a... Valley portion, 5... Lower jaw, 10... Opening window, 11... Worm, 15... Locking member, 20... Plating liquid.

Claims (1)

[Claims] 1 A spanner main body 3 having an upper jaw 1, a lower jaw 5 assembled to the spanner body 3 so as to be able to freely move toward and away from the upper jaw 1, and a rack 4 formed on the lower jaw 5. A worm 11 is removably attached to the opening window 10 of the spanner body 3 so as to mesh with the opening window 10 of the spanner body 3.
In the method for fitting a monkey spanner, the lower jaw 5 is moved towards and away from the upper jaw 1 by rotating the worm 11, the upper jaw 1 side of the spanner main body 3 and the lower jaw 5 Both surfaces are polished continuously, and then the locking member 15 detachably attached to the opening window 10 is engaged with the trough 4a at the final end of the rack 4 on the upper jaw 1 side. With the lower jaw 5 separated from the upper jaw 1 by a large distance so that only the trough 4a is located within the opening window 10, the lower jaw 5 is removably connected to the spanner body 3, and then the spanner body 3 and The lower jaw 5 is placed in a plating liquid 20 and its surface is electroplated, and then the locking member 15 is removed from the spanner body 3 and the lower jaw 5 and the worm 11 are assembled to the body 3. How to use a monkey spanner.