JP4294499B2 - Hanging tool - Google Patents

Description

  The present invention relates to a suspending tool used for suspending a material on a conveyance frame in a surface treatment apparatus that hangs a surface treatment material such as an aluminum mold on the conveyance frame.

  Although this type of conventional hanging tool is not specifically shown, a base that also serves as a current-carrying bar is fixed to the lower part of a support frame having a U-shaped cross section, and a cam-shaped rotation is provided on the upper end side of the support frame. The movable holding claw is pivotally supported so that the surface-treated material is held between the rotating holding claw and the tip holding portion of the base, while the operation lever is turned to the upper rear end side of the support frame. The shaft is movably supported, and the distal end portion of the operation lever and the rotation gripping claw are connected through a long hole and a connection pin, and the spring pressure of a spring member mounted between the base and the operation lever is used. The rotation gripping claw is configured to normally bias the rotation in the closing direction (see, for example, Patent Document 1).

When the surface-treated material is suspended from the conveyance frame using this conventional hanging tool, the operation lever is pressed against the base side against the spring pressure of the spring member. Since the rotary gripping claw connected to the tip of the long hole via the connecting pin rotates in the opening direction, an insertion space is created between the rotary gripping claw and the tip gripping part of the base body. After that, if the upper end portion of the surface treatment material is inserted into the insertion space and the pressing operation on the operation lever is released, the surface treatment material is held between the rotary gripping nail and the tip of the base according to the plate thickness. It will be held between clubs.
Japanese Utility Model Publication No. 61-3856

  However, it is not so much a problem when trying to hold a surface treatment material with a relatively thin thickness under a conventional hanging tool, but conversely, a surface treatment material with a relatively large thickness is used. If you are trying to grip it, you can't fully rotate the pivoting claw in the opening direction. In this case, you need to use a separate large hanging tool that is suitable for the plate thickness. Had to do. For this reason, conventional suspension tools have a lack of versatility due to their structure, and in particular, when the suspension tool is enlarged, the holding point of the surface treatment material is supported accordingly. Due to the movement to the back side of the frame, there was an increase in the number of parts that were not surface-treated, and there was a disagreement that the yield of materials deteriorated.

  The present invention has been developed in order to effectively solve the problems of such a conventional hanging tool, and the invention according to claim 1 includes a base having a tip gripping portion, and a tip gripping portion of the base. A first rotating holding claw that cooperates to hold the surface treatment material, an operation lever that opens and closes the first rotating holding claw, and a spring member that applies a holding force to the first rotating holding claw. A hanging tool that pivotally supports the second rotating holding claw on the first rotating holding claw, and has a long hole formed in either the second rotating holding claw or the operation lever. And a connecting pin that is loosely fitted in the elongated hole is provided on the other side, the operating lever is connected to the second rotating gripping claw by the connecting pin and the elongated hole, and the second rotating is performed by operating the operating lever. The holding claw and the first rotating holding claw are interlocked.

  According to a second aspect of the present invention, on the premise of the first aspect, a restriction groove for loosely fitting the restriction pin is formed in the first rotary gripping pawl, and the restriction pin collides with the edge of the restriction groove. The rotation position of the 1st rotation holding claw interlocked with 2 rotation holding claws is controlled, It is characterized by the above-mentioned.

  According to a third aspect of the present invention, on the premise of the second aspect, a stopper claw that engages with the first rotation gripping claw rotated to the rotation restriction position is provided at the tip of the operation lever, and the first operation of the stopper claw is provided. The occlusal action with respect to the movable holding claw is characterized in that the first rotating holding claw and the second rotating holding claw are restrained at a position away from the tip holding portion of the base.

  Therefore, in the first aspect of the present invention, the surface to be coated is thin because of the relationship between the first and second pivoting claws that rotate in conjunction with the operation lever. When holding the treatment material, first, the second rotating holding nail corresponds, and when holding the surface-treated material with a large plate thickness, the first rotating holding nail corresponds. As a result, the versatility of the hanger itself is remarkably improved, and the present economic requirements can be fully satisfied.

  In the invention according to claim 2, in addition to this, the operation of the control pin and the control groove is performed so as to control the rotation position of the first rotation holding claw that is linked to the second rotation holding claw. Even if the second rotation gripping claw is greatly rotated in the opening direction by the operation of the lever, the rotation position of the first rotation clamping claw in the opening direction is restricted, so the first rotation clamping claw is reversed. No worries to do.

  According to the invention of claim 3, in addition to this, a stopper claw that engages with the first rotation holding claw rotated to the rotation restriction position is provided at the tip of the operation lever, and the first rotation holding claw is provided. And the second rotating gripping claw are restrained at a position away from the tip gripping portion of the base body, the cleaning operation for removing and peeling the liquid residue and the coating film adhering to the tip gripping portion surface of the base body becomes easy.

  According to the present invention, the second rotary gripping claw is pivotally supported by the first rotary gripping claw so that the second rotary gripping claw can be rotated, and an operation lever connected to the second rotary gripping claw is operated. When the surface treatment material with a small plate thickness is held by interlocking the first rotation holding nail with the first rotation holding nail, first, the second rotation holding nail corresponds to the surface treatment material with a large plate thickness. In the case of gripping, this time, the first rotating gripping claw corresponds to provide a hanging tool with excellent versatility.

  Hereinafter, the present invention will be described in detail with reference to a preferred embodiment shown in the drawings. The hanging tool according to the embodiment basically has a cross-section U as shown in FIGS. A base 2 that also serves as a current-carrying bar is fixed to the lower part of the support frame 1 that is shaped like a letter, and a cam-shaped first rotary gripping claw 3 can be rotated via a shaft 4 on the upper end side of the support frame 1. A spring member 7 that pivotally supports the operating lever 5 on the lower rear end side of the support frame 1 via a shaft 6 and provides a clamping force between the operating lever 5 and the base 2. It is configured to be worn.

  In this embodiment, on the basis of such a structure, the upper part of the cam-shaped second rotary gripping claw 8 is rotated via the shaft 9 on the lower side surface of the first rotary gripping claw 3 described above. While being pivotally supported, a long hole 10 is formed in the second rotary gripping claw 8, and a connecting pin 11 that is loosely fitted in the long hole 10 is provided at the tip of the operating lever 5. The operation lever 5 is directly connected to the side surface of the second rotation gripping claw 8 by the pin 11 and the long hole 10, and the second rotation gripping claw 8 and the first rotation gripping by the operation of the operation lever 5. The structure which interlock | cooperates with the nail | claw 3 together is employ | adopted. The long hole 10 and the connecting pin 11 may be provided in reverse.

  In addition to this, an arc-shaped restricting groove 12 is formed in a penetrating state on the side surface of the first rotating gripping claw 3 where the circumferential row teeth 3a do not exist, and the restricting groove is formed on the top end side of the support frame 1. The regulation pin 13 that loosely fits in the inside 12 is fixed, and the regulation pin 13 collides with the edge of the regulation groove 12 in accordance with the rotation of the first rotation gripping claw 3 in the opening direction. The structure which regulates the rotation position of the 1st rotation holding claw 3 interlocked with the rotation holding claw 8 is employ | adopted.

  Furthermore, in the present embodiment, the peripheral row teeth of the first turning gripping claw 3 turned to the turning position restricted by the restriction groove 12 and the restriction pin 13 at the tip edge of the operation lever 5. A stopper claw 14 that engages with 3a is provided, and the first claw claw 3 and the second claw claw 8 are engaged with the claw action of the stopper claw 14 with respect to the circumferential surface row teeth 3a of the first claw claw 3; In addition, a configuration is adopted in which the base 2 is restrained at a position away from the tip holding portion 2a of the base 2.

  Therefore, even under the hanging tool according to the present embodiment, the hanging tool is directly or indirectly fixed to the transport frame (not shown) at a predetermined interval, and as shown in FIG. When the rear end of 5 is pressed against the rear end of the base member 2 against the spring pressure of the spring member 7, the second end connected to the front end of the operating lever 5 via the elongated hole 10 and the connecting pin 11 is provided. Simultaneously with the rotation of the rotation gripping claw 8 in the opening direction, the first rotation clamping claw 3 is also rotated in the opening direction, and the first rotation clamping claw 3 and the second rotation clamping claw Since the insertion space S is generated between the claw 8 and the tip gripping portion 2a of the base body 2, the upper end portion of the surface treatment material W is inserted into the insertion space S and the pressing operation on the operation lever 5 is performed thereafter. If this is solved, the surface treatment material is held.

  At this time, if the plate thickness of the surface-treated material W is 10 mm or 10 mm or less (when the plate thickness is relatively thin), first, as shown in FIG. Since the peripheral surface row teeth 8a of the claw 8 and the tip gripping portion 2a of the base 2 are gripped according to the plate thickness, the surface-treated material W having a relatively thin plate thickness is securely clamped. It becomes. In this case, the first rotation gripping claw 3 hardly rotates.

  Further, when the plate thickness of the surface-treated material W is 15 mm (when the plate thickness is relatively thick), as shown in FIG. Since the tooth 3a and the tip gripping portion 2a of the base 2 are gripped according to the plate thickness, even the surface-treated material W having a relatively thick plate thickness can be securely clamped. In this case, the second rotary gripping claw 8 rotates further in the opening direction than the above, and does not interfere with the surface treatment material W.

  Further, when the plate thickness of the surface-treated material W is 30 mm (when the plate thickness is considerably thick), as shown in FIG. 3a and the tip gripping portion 2a of the base body 2 can be gripped according to the thickness of the base 2, so that in the hanging tool of this embodiment, the plate thickness regardless of the thickness of the surface treatment material W Even if the surface treatment material W is thin or the surface treatment material W is thick, it can be securely held using a common hanging tool. Can be greatly expected. In this case as well, the second rotation gripping claw 8 further rotates in the opening direction and does not interfere with the surface treatment material W.

  In either case of gripping the surface-treated material W of any thickness, if the operation lever 5 is pressed strongly, the first rotation holding claw 8 greatly rotates in the opening direction as the second rotation holding claw 8 rotates greatly. The claw 3 also attempts to rotate in the opening direction in conjunction with this, but in this case, as shown in FIG. 7, the restriction pin 13 fixed to the support frame 1 is provided with the first rotation holding claw 3. Since it collides with the edge of the regulation groove 12 and restricts further rotation of the first rotation gripping claw 3, there is no fear that the first rotation clamping claw 3 is reversed in the direction of arrow A in the figure. Therefore, unlike the conventional case, when using the two rotary gripping claws 3 and 8, there is no concern that the bag will cause any trouble in use.

  Further, by repeated use, a liquid residue, a coating film, or the like is formed on the tip holding portion 2a of the base 2 that also serves as a current-carrying bar in a step of immersing the surface treatment material W in a treatment solution or a step of electrolytic treatment in the solution. If they adhere, cleaning work is required to remove and peel them off. At this time, as shown in FIG. 8, the operation lever 5 is provided at the front edge of the operation lever 5. The first claw claw 3 and the second claw claw that are rotated in the opening direction by engaging the stopper claw 14 with the peripheral surface row teeth 3a of the first claw claw 3 that has been rotated to the rotation regulation position. 8 can be locked locked in the opening direction, that is, at a position away from the tip gripping portion 2a of the base 2, so that the above-described cleaning operation is facilitated. In order to release the restraint lock state, if the operating lever 5 is further pressed slightly toward the rear end of the base body 2, the occlusal state of the stopper claw 14 with respect to the first rotation gripping claw 3 is automatically set. It can be easily released.

  The hanging tool according to the present invention is most suitable as a hanging tool for suspending a large number of aluminum molds on a conveyance frame in, for example, an anodizing apparatus for aluminum molds.

It is a perspective view which shows the hanging tool which concerns on the Example of this invention. It is a sectional side view of the hanging tool. In the hanging tool, it is a sectional side view showing a state in which the first rotation holding claw and the second rotation holding claw are rotated in the opening direction in conjunction with each other. It is a sectional side view which shows the state which clamped 10-mm surface-treated material with the hanging tool. It is a sectional side view which shows the state which clamped the surface treatment material of 15 mm with the hanging tool. It is a sectional side view which shows the state which clamped the 30-mm surface-treated material with the suspension tool. In the hanging tool, it is a sectional side view showing a state where the regulation pin collides with the edge of the regulation groove. It is a principal part expanded side sectional view which shows the state which the stopper nail | claw engaged with the peripheral row | line | column tooth of the 1st rotation clamping nail | claw in the said hanging tool.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Support frame 2 Base | substrate 2a The front-end | tip holding | grip part of a base | substrate 3 The 1st rotation clamping claw 3a The peripheral line row tooth of a 1st rotation clamping claw 4 Axis 5 Operation lever 6 Axis 7 Spring member 8 2nd rotation clamping claw 8a 2nd Peripheral row teeth of rotating holding claw 9 axis 10 long hole 11 connecting pin 12 regulating groove 13 regulating pin 14 stopper claw S insertion space W surface treatment material A reverse direction

Claims (3)

A base having a tip gripping portion; a first rotating gripping pawl that cooperates with the tip gripping portion of the base to grip the surface-treated material; an operation lever that opens and closes the first rotating gripping pawl; A suspension member provided with a spring member for applying a holding force to the rotating holding claw, wherein the second rotating holding claw is pivotally supported on the first rotating holding claw while the second rotation. A long hole is formed in one of the movable gripping claw and the operation lever, and a connection pin that is loosely fitted in the long hole is provided in the other, and the second rotation gripping claw is provided with the connection pin and the long hole. And a second pivoting nail and the first pivoting nail are interlocked by operating the operation lever. A restriction groove for loosely fitting the restriction pin is formed in the first turning gripping claw, and the restriction pin collides with the edge of the restriction groove, so that the first turning holding claw interlocked with the second turning gripping claw The suspension tool according to claim 1, wherein the rotation position is restricted. A stopper claw that engages with the first rotation holding claw rotated to the rotation restriction position is provided at the tip of the operation lever, and the first rotation holding claw is engaged with the first rotation holding claw by the engagement of the stopper claw with the first rotation holding claw. The suspension tool according to claim 2, wherein the second rotating holding claw is restrained at a position away from the tip holding portion of the base.

Images