JPH07224398A - Hanger of material to be surface treated - Google Patents

Abstract

PURPOSE:To provide a hanger of a material to be surface treated which permits easy assembly operation and permits exchange of only the turning clamping pawl, CONSTITUTION:This hanger has a base body 1, the turning clamping pawl 2, an operating lever 3 and a spring member 4 and is constituted to connect the turning clamping pawl 2 and the operating lever 3 via a long hole 8 bored at the turning clamping pawl 2 and a connecting pin 9 fixed to the operating lever 3. The top end of this long hole 8 is successively provided with an opening 10 communicating with outside and a guide part 11 for guiding insertion of the connecting pin 9 is formed on the outer edge side of this opening 10. As a result, the connecting pin 9 is securely fitted into the long hole 8 of the turning clamping pawl 2 and the turning clamping pawl 2 and the operating lever 3 are easily connected when the connecting pin 9 is previously fixed to the operating lever 3 side and the pointed connecting pin 9 is inserted into the opening 10 from behind. Conversely, the turning clamping pawl 2 and the operating lever 3 are easily disconnected simply by pulling the connecting pin 9 fitted into the long hole 8 from the opening 10.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a surface treatment apparatus for suspending a large number of surface treated materials such as aluminum molds on a carrier frame, and to an improvement of a hanging tool for suspending the surface treated material on the carrier frame. It is a thing.

[0002]

2. Description of the Related Art As a conventional hanging device of this type, there is, for example, one disclosed in Japanese Utility Model Laid-Open No. 4-135961. As shown in FIG. 5, the conventional hanging device includes a base 21 that also serves as a current-carrying bar, and a cam-shaped rotary holding claw 22 that holds a surface-treated material in cooperation with a tip portion 21a of the base 21. And a spring member 24 for applying a holding force to the rotating and holding claw 22 via the operating lever 23, and an operating lever 23 for opening and closing the rotating and holding claw 22. 21
To the support wall 25 having a U-shaped cross section provided on the side
And the mounting shaft member 26
A long hole 28 is bored at a constant inclination angle on a radial line centering on the center of the control lever 23, and a substantially intermediate portion of the operating lever 23 is pivoted on the supporting wall 25 via a mounting shaft member 27. The pivot pin is rotatably supported, and a connecting pin 29 fitted in the elongated hole 28 of the rotary holding claw 22 is provided at the bifurcated distal end portion thereof. When such a connecting pin 29 is provided at the tip of the operating lever 23, normally, both ends of the connecting pin 29 are fitted in the long hole 28 of the rotary holding claw 22. Is firmly fixed to the operation lever 23 side by welding or caulking.

Therefore, when using the conventional suspending tool, a large number of suspending tools are attached to the carrier frame at regular intervals, and the rear end of each operating lever 23 is attached to the spring member 24.
When rotated while pressing in the direction of the base body 21 against the spring pressure of, the connecting pin 29 provided at the tip of the operation lever 23 moves in the elongated hole 28 in a predetermined direction, and the rotating holding claw 22 Since it is rotated in the opening direction, the end of the surface treated material (not shown) is inserted between the rotation-holding claw 22 and the tip 21a of the base 21 to push the operation lever 23. If it is unwound, the surface treated material is held between the rotary holding claw 22 and the tip 21a of the base body 21 according to the thickness thereof.

[0004]

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention
Compared with the type in which the rotary holding claw 22 and the operating lever 23 are connected via independent single or plural link members, the number of parts is reduced and the rotary range of the rotary holding claw 22 is large. However, on the other hand, under the conventional hanging tool, on the other hand, in the process of assembling, both ends of the connecting pin 29 are fitted into the long holes 28 of the rotary holding claw 22, and the two ends of the operating lever 23 are fitted. Since it has to be fixed to the fork-shaped tip portion by welding, caulking, etc., in particular, the work of connecting the rotary holding claw 22 and the operation lever 23 becomes troublesome, which causes a big problem that the product cost rises. Have

Further, in the surface treatment hanging device, the part that is most worn is the rotary holding claw 22 in terms of its function. In this case, in this case, like the conventional hanging device. At the time of assembling, if the connecting pin 29 fitted in the elongated hole 28 is firmly fixed to the tip end side of the operation lever 23, even if it is desired to replace only the worn rotating holding claw 22, the rotation of the rotating holding claw 22 may be changed. Since it becomes very difficult to disassemble the movable holding claw 22 and the operating lever 23, it is unavoidable to replace the suspension kit when replacing it, which is extremely unreasonable from the economical point of view. ing.

Therefore, in order to solve the problem of the conventional hanging device, for example, as shown in FIG. 6 (A), the lower end portion side (holding) of the elongated hole 28 formed in the rotary holding claw 22 is held. A straight opening 30a communicating with the outside is continuously provided on the cam surface side), or, as shown in FIG. 6B, is bent in the front direction toward the lower end side of the long hole 28 of the rotary holding claw 22. After that, the opening 30b communicating with the outside is continuously provided, the connecting pin 29 is first fixed to the tip end portion of the operation lever 23, and then the connecting pin 29 is extended from the openings 30a and 30b to the long hole 28. It is conceivable that it is configured so as to be retractably fitted inside.

Certainly, the rotary holding claw 22 and the operating lever 23
Although it can be said that each of the above-mentioned configurations is effective if only the connection and separation of the above are taken into consideration, on the other hand, in the case of the former, the presence of the straight opening 30a causes the connecting pin 29 to rotate the holding pin 22. When the connection pin 29 is rotated in the opening direction,
Has a big problem that it accidentally comes off from the inside of the long hole 28. On the contrary, in the case of the latter, there is almost no danger of the connecting pin 29 coming off, but this time it bends to the front side. Due to the presence of the opening 30b, the holding cam surface of the rotary holding claw 22 is reduced, and there is a big problem that the holding force for the surface-treated material is reduced, which is a practical problem. , These improvements are essential.

[0008]

The present invention was developed in order to effectively solve various problems relating to these hanging devices, and includes a base body attached to the carrier frame side and a tip end portion of the base body. A rotary holding claw that works to hold the surface-treated material, an operating lever that opens and closes the rotary holding claw, and a spring member that applies a holding force to the rotary holding claw via the operating lever; The upper end of the long hole is premised on a suspending tool configured to connect the rotary holding claw and the operating lever via a long hole formed in the rotary holding claw and a connecting pin fixed to the operating lever. A configuration is adopted in which an opening that communicates with the outside is continuously provided in the portion, and a guide portion that guides the insertion of the connecting pin is formed on the outer edge side of the opening. Further, in this case, the opening connected to the upper end of the elongated hole is continuous with the upper end of the elongated hole at a position beyond the movement range of the connecting pin in the elongated hole, or
It is preferable to use a configuration in which a stopper portion that prevents the connecting pin from coming off is formed on the inner edge side of the opening, either alone or in combination.

[0009]

Therefore, when assembling the suspending tool according to the present invention, first, the connecting pin is previously fixed to the distal end side of the operation lever by using welding or caulking, and the tip mounting is performed. If the connecting pin is inserted later from the opening of the rotary holding claw, the connecting pin is smoothly guided into the long hole with the help of the guide portion on the outer edge side and surely fits into the long hole. Therefore, by this, the rotation holding claw and the operation lever are easily connected. Also, if the rotating holding claw is worn out and the replacement is unavoidable due to repeated use of the hanging tool, it is necessary to forcibly pull out the connecting pin fitted in the long hole from the opening. Since the movable holding claw and the operating lever can be easily disassembled, after that, fit the connecting pin of the operating lever up to that point into the long hole of the new rotating holding claw and assemble it to the entire hanging device. In this case, it is possible to sufficiently reuse the suspending tool currently in use by only exchanging the rotating and holding claw.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to one embodiment shown in the drawings. The hanging device according to this embodiment is basically similar to the conventional one as shown in FIG. A base 1 that also serves as a current-carrying bar, a cam-shaped pivoting claw 2 that cooperates with a tip 1a of the base 1 to clamp a surface treatment material, and an operating lever 3 that opens and closes the pivoting claw 2. And a spring member 4 for applying a holding force to the rotary holding claw 2 via the operation lever 3, the rotary holding claw 2 being provided on a support wall 5 provided on the base body 1 side and having a U-shaped cross section. The operation lever is pivotally mounted via a mounting shaft member 6, and a long hole 8 is bored at a constant inclination angle on a line L in the radial direction with the mounting shaft member 6 as a center. 3 is a mounting shaft member 7 attached to the support wall 5 at the substantially middle portion thereof.
It is premised that the connecting pin 9 is rotatably pivoted through the connecting pin 9 and is fitted into the long hole 8 of the rotating holding claw 2 at its forked end. The feature is that the following configuration is adopted.

That is, in this embodiment, as shown in FIG. 2, an opening 10 communicating with the outside is provided at the upper end portion side (the mounting shaft member 6 side) of the elongated hole 8 so as to intersect at a substantially right angle. A guide portion 11 is formed continuously on the outer edge side of the opening 10 for guiding the insertion of the connecting pin 9 smoothly, and a stopper portion 1 for preventing the connecting pin 9 from coming off from the inner edge side of the opening 10.
2 is formed. Explaining this concretely, the intersection of the opening 10 and the upper end of the long hole 8 is defined by the long hole 8
In order to ensure the normal forward / reverse movement of the connecting pin 9 inside, it is set so as to be continuous with the upper end of the elongated hole 8 at a position beyond the movement range, and is formed on the outer edge of the opening 10. As shown in the figure, the guide portion 11 formed is provided as a tapered surface that gradually expands outward in an arc shape, and the stopper portion 12 formed at the inner edge of the opening 10 is
The distance between the inner edges is given with a dimensional difference that is slightly smaller than the diameter of the connecting pin 9. However, the guide portion 11 and the stopper portion 12 are not limited to those of the above-described embodiment, and may be changed to other effective shapes depending on the implementation as long as the respective objects can be achieved. Is.

Therefore, when the hanging tool according to the present embodiment is assembled, first, the connecting pin 9 is previously fixed to the bifurcated distal end side of the operating lever 3 by welding or caulking. Then, if the tip-end connecting pin 9 is inserted into the opening 10 of the rotary holding claw 2 later, the connecting pin 9 is smoothly guided into the elongated hole 8 with the help of the guide portion 11 on the outer edge side. Since they are fitted to each other, unlike the conventional ones, the rotary holding claw 2 and the operation lever 3 are connected very easily. Therefore, after that, it suffices to pivotally attach the rotary holding claw 2 and the operation lever 3 to the corresponding portions of the support wall 5 via the respective mounting shaft members 6 and 7. At this time, Regarding 6 and 7,
Although not specifically shown, by positively using detachable means such as split pins, bolts and nuts, not only the assembling work of the suspending tool but also the disassembling work thereof can be easily performed. As for the spring member 4, if a torsion spring mounted on the mounting shaft member 7 is used as shown in the drawing, it is possible to contribute to simplification of the assembling work and the disassembling work of the suspension.

When various kinds of surface-treated materials are hung on the carrier frame by using such a hanging tool, although not specifically shown, a large number of hanging tools are provided as in the conventional one. Is directly or indirectly attached to the conveyance frame side, and the rear end side of each operation lever 3 is rotated while pressing in the direction of the base body 1 against the spring pressure of the spring member 4 to rotate the holding pin 2. Is rotated in an opening direction away from the tip 1a of the base body 1, a surface treatment material is inserted between the rotary holding claw 2 and the tip portion 1a of the base 1, and the pressing operation of the operation lever 3 is performed. If unraveled, this time, the spring pressure of the spring member 4 causes the operating lever 3 and the rotary holding claw 2 to automatically rotate in opposite directions, respectively, and the surface treated material is rotated according to its thickness. Holding pin 2 and tip portion 1a of base body 1
It will be possible to hold it securely between them.

In this operation process, even under the present embodiment, the connecting pin 9 on the operating lever 3 side is provided with the elongated hole 8 of the rotary holding claw 2 in accordance with the rotary position of the rotary holding claw 2. However, in this case, as described above, the opening 10 intersecting the elongated hole 8 is continuous at a position beyond the moving range of the connecting pin 9, For example, as shown in FIG. 3, even if the connecting pin 9 is in the state where the connecting pin 9 is closest to the opening 10 in the elongated hole 8, there is no fear that the connecting pin 9 will accidentally come out of the elongated hole 8. In addition to this, in the present embodiment, further, a stopper portion 12 having a small diameter is formed on the inner edge of the opening 10.
Since the connecting pin 9 reaches the opening 10 due to an unexpected trouble or the like, it is possible to reliably prevent the connecting pin 9 from coming off. It never becomes. Moreover, under the present embodiment, the opening 10 that allows the connecting pin 9 to be taken in and out.
Is connected to the upper end side of the long hole 8, that is, the mounting shaft member 6 side, it is not necessary to limit the holding cam surface of the rotating holding claw 2, so that the rotating holding claw 2 can be held. There is no worry that the power will decrease.

Also, by repeatedly using the hanging device, in particular,
When the rotary holding claw 2 is worn out and must be replaced, the above-mentioned mounting shaft members 6 and 7 are removed, and the rotary holding claw 2 and the operating lever 3 are removed from the support wall 5, By forcibly pulling out the connecting pin 9 fitted in the hole 8 from the opening 10, the rotary holding claw 2 and the operating lever 3 can also be easily disassembled by this. The connecting pin 9 of the operation lever 3 up to now is fitted into the long hole 8 of the rotary holding claw 2 through the opening 10 thereof, and the entire hanging device is assembled through the same working process as described above. For example, it is possible to reuse the suspending tool that is currently used by only exchanging the rotating and holding claws 2, so that it is much more economical than the conventional suspending tool. When the connecting pin 9 is pulled out from the elongated hole 8, since the stopper portion 12 having a small diameter is formed at the inner edge of the opening 10, the stopper portion 12 or the vicinity thereof is forcibly pulled out. Although it may be damaged, in this case the rotary holding claw 2
Are exchanged, so there is no problem.

Further, in the above-mentioned embodiment, when the elongated hole 8 is formed on the side of the rotary holding claw 2, the inclination is constant on the radial line L centering on the mounting shaft member 6 as in the conventional case. Although the holes are formed at an angle, the present invention is not limited to this, and if possible, the holes are formed on a line completely parallel to the radial line L or on a slightly inclined line. Even if the same effect can be expected, if the openings 10 are continuously provided on the upper end side of these elongated holes 8,
Provided to cross the position beyond the movement range of the connecting pin 9,
Needless to say, the guide portion 11 is formed on the outer edge side and the stopper portion 12 is formed on the inner edge side.

Further, under the above-mentioned embodiment, when the opening 10 is provided on the upper end side of the elongated hole 8, the both 8 and 10 are continuously arranged so as to intersect each other at a substantially right angle. However, the present invention is not limited to the embodiment, and, for example, as shown in FIG. 4, it is also optional to continuously connect the both 8 and 10 inclining and intersecting with each other. However, also in this case, it is the same as the above case that the opening 10 is crossed at a position beyond the movement range of the connecting pin 9 and the guide portion 11 is formed on the outer edge side thereof and the stopper portion 12 is formed on the inner edge side thereof. Is.

[0018]

As described above, according to the present invention, by adopting the above-mentioned structure, it becomes easy to assemble the suspending tool even under the suspending tool adopting the connecting structure of the long hole and the connecting pin. In addition to being able to greatly contribute to cost reduction of the hanger itself, especially when it is necessary to replace the rotating holding claw that is heavily worn, it is possible to sufficiently replace only the rotating holding claw. This also makes it possible for the first time to provide a very economical hanging device. Moreover, since the opening for allowing the connecting pin to be taken in and out is continuously provided on the upper end side of the elongated hole, it is not necessary to limit the holding cam surface of the rotating holding claw, so that the holding force of the rotating holding claw is increased. At the same time, there is no need to worry about lowering, and the opening connected to the upper end of the long hole is continuous with the upper end of the long hole at a position beyond the range of movement of the connecting pin within the long hole. Alternatively, by adopting a configuration in which a stopper portion is formed on the inner edge side of the opening in combination with or independently of the same configuration, it is possible to completely prevent the connecting pin from accidentally coming off from the elongated hole under any circumstances. The presence of the opening never causes any inconvenience in use.

Furthermore, under the present invention, the connection and disassembly of the rotary holding claw and the operating lever are facilitated, and in addition to the above-mentioned advantages, various combinations of the rotary holding claw and the operating lever can be used. As a result, it is possible to freely configure hanging devices having different standards, and thus the practicality and versatility thereof are greatly expanded.

[Brief description of drawings]

FIG. 1 is a front view showing a partial cross section of a hanging device according to an embodiment of the present invention.

FIG. 2 is an enlarged exploded view showing a relationship between a rotary holding claw and a connecting pin.

FIG. 3 is a principal part explanatory view for explaining a state in which a connecting pin is closest to an opening in a long hole of a rotary holding claw.

FIG. 4 is a front view of a rotary holding claw showing another example of the present invention.

FIG. 5 is a front view showing a part of a conventional hanging device in section.

6 (A) and 6 (B) are explanatory views of a rotary holding claw which is a modification of the conventional hanging device.

[Explanation of symbols]

 1 Base 1a Same tip 2 Rotating holding claw 3 Operating lever 4 Spring member 6 Mounting shaft 7 Mounting shaft 8 Long hole 9 Connecting pin 10 Opening 11 Guide 12 Stopper

Claims (3)

[Claims] 1. A base body mounted on the side of a carrying frame, a rotary holding claw for holding a surface-treated material in cooperation with a tip portion of the base body, and an operation lever for opening and closing the rotary holding claw. And a spring member for applying a gripping force to the rotating holding claw via the operating lever, and the rotating holding claw via a long hole formed in the rotating holding claw and a connecting pin fixed to the operating lever. In the hanging tool configured to connect the control lever and the operating lever, an opening communicating with the outside is continuously provided at the upper end of the elongated hole, and a guide portion for guiding the insertion of the connecting pin is formed on the outer edge side of the opening. A hanging tool for a surface treated material, which is characterized in that 2. An opening connected to the upper end of the elongated hole,
The suspending tool for a surface treated material according to claim 1, wherein the suspending tool is continuous with the upper end of the elongated hole at a position beyond the range of movement of the connecting pin within the elongated hole. 3. The suspending tool for surface-treated material according to claim 1, wherein a stopper portion for preventing the connecting pin from coming off is formed on the inner edge side of the opening.