JP6270942B1 - Hanging bracket - Google Patents

Abstract

An object of the present invention is to provide a hanging metal fitting that can be adjusted in posture in a state where the baggage is lifted up. In a hanging metal fitting (1) used to engage a hook (2) of an elevating mechanism and lift a load via a rope (3), an engagement ring portion (12) provided on a side plate (10) and engaged with the hook (2) is provided. An inner cylinder member 13 provided with an engagement hole 12a and fixed, and an outer cylinder member 14 provided rotatably with respect to the inner cylinder member 13 fitted to the inner periphery and having an outer periphery that is a rope winding surface 14a. Further, the rotation position adjustment mechanism 40 for adjusting the rotation position of the outer cylinder member 14 relative to the inner cylinder member 13 and the operation means for operating the rotation position adjustment mechanism 40 are provided. [Selection] Figure 3

Description

  The present invention relates to a hanging metal fitting that is interposed between a lifting engagement portion of a lifting mechanism and a rope when the load is hung by a rope and lifted and moved by the lifting mechanism.

  When a heavy load is lifted and moved, a slinging operation is performed in which a hook (lifting engagement portion) of a lifting mechanism such as a crane holds a rope coupled to the load. When lifting and moving a load by a hook of the lifting mechanism, if the lifting position by the hook is eccentric from the center of gravity of the load, an unexpected accident such as inclination of the load or detachment of the rope from the hook may occur. In order to prevent such an accident, it is necessary to perform a rope adjustment work to match the center of gravity of the load with the lifting position by the hook, but this rope adjustment requires a complicated work, so the rope adjustment work is executed. There has been proposed a hanging metal fitting having a function of matching the center of gravity of a load with the lifting position (see Patent Document 1).

  In the prior art shown in this patent document example, in a hanging metal fitting having an automatic alignment function capable of automatically matching the center of gravity of the load with the lifting position by the hook, a mechanism for locking the rope in the aligned state is provided. By providing, the rope is prevented from slipping out of the alignment state at the contact portion with the hanging bracket. Furthermore, in this prior art, even when the load is lifted, the rope can be locked and unlocked by an operation from the ground, thereby enabling more accurate alignment work.

JP 2013-10631 A

  By the way, in the rope transport operation for lifting and transporting a load as described above, it may be necessary to adjust the posture of the load after being lifted once. In other words, when the baggage should be lifted horizontally, but the baggage is not in the correct horizontal position when it is ground-cut, or when the baggage is somewhat out of the initially set lifting posture For example, posture adjustment work for matching the posture of the load with a desired posture is required. In this posture adjustment, the relative positional relationship with the rope at the hanging position by the hook is adjusted. For this reason, even in the case of using a hanging bracket having an automatic alignment function as in the above-described prior art, a rope for matching the correct posture after releasing the lifting by the hook and landing the load once Adjustment work had to be done. After the adjustment work, it is necessary to check whether the posture is correct and desired by lifting the load again with the hook. As described above, the adjustment of the posture of the load in the prior art requires complicated labor and labor, and a new method for adjusting the posture in a state where the load is lifted is required.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a hanging metal fitting that can be adjusted in posture in a state where the baggage is lifted up.

The hanging bracket of the present invention is a hanging bracket that is attached to a rope that is coupled to a load at both ends, and is used to lift the load via the rope by engaging with a lifting engagement portion of a lifting mechanism. A pair of side plates arranged at a predetermined interval and an engagement hole with which the lifting engagement portion engages, and the engagement hole is disposed between the pair of side plates with the side plate being opened. An annular engagement ring portion provided with a rope winding surface around which the rope is wound in a loop shape, the engagement ring portion being provided with the engagement hole and being fixed to the side plate A cylindrical member, and an outer cylindrical member that is rotatably provided with respect to the inner cylindrical member fitted to the inner periphery, and whose outer periphery is the rope winding surface; and further, the outer cylindrical member with respect to the inner cylindrical member A rotational position adjusting mechanism for adjusting the rotational position, and an operation for operating the rotational position adjusting mechanism. And means, a sliding member is interposed between the inner periphery of the outer cylinder member and the outer periphery of the inner cylinder member.

  According to the present invention, posture adjustment can be performed in a ground-cut state where a load is lifted.

Explanatory drawing of the usage example of the hanging metal fitting of one embodiment of this invention The perspective view of the hanging metal fitting of one embodiment of the present invention The front view of the hanging metal fitting of one embodiment of the present invention The side view of the hanging metal fitting of one embodiment of the present invention The fragmentary sectional view of the hanging metal fitting of one embodiment of the present invention The fragmentary sectional view of the hanging metal fitting of one embodiment of the present invention The fragmentary sectional view of the hanging metal fitting of one embodiment of the present invention Explanatory drawing of the self-aligning function in the hanging metal fitting of one embodiment of the present invention Functional explanatory drawing of the rope lock mechanism in the hanging metal fitting of one embodiment of the present invention Functional explanatory drawing of the rotation position adjustment mechanism in the hanging metal fitting of one embodiment of the present invention

  Next, embodiments of the present invention will be described with reference to the drawings. First, with reference to FIG. 1, the usage example of the hanging metal fitting 1 of this Embodiment is demonstrated. FIG. 1 shows a slinging state when a heavy load 6 is lifted and transported via a wire rope 3 (hereinafter simply referred to as “rope 3”) by a hook 2 of a crane (not shown) which is a lifting mechanism. Is shown. Eyebolts 5 are implanted in the vicinity of both end portions on the upper surface of the luggage 6, and end portions 3 a at both ends of the rope 3 are fixed to the eyebolts 5 through shackles 4. In addition to the wire rope, the rope 3 may be a sling-like bundle in which a resin or fiber cord excellent in tensile strength is bundled.

  The rope 3 is attached with a hanging metal fitting 1 having the configuration described below, and the hanging metal fitting 1 is engaged with a hook 2 which is a lifting engagement portion. The luggage 6 is lifted via the rope 3 by operating the crane and raising the hook 2. That is, the hanging bracket 1 is attached to the rope 3 coupled to the load 6 at both ends, and is used to lift the load 6 via the rope 3 by engaging with the lifting engagement portion of the lifting mechanism.

  When lifting the load 6 via the rope 3 by the hanging bracket 1, the hanging bracket 1 is automatically moved above the center of gravity G of the load 6 by the self-aligning function as the hook 2 is lifted. The lifting operation is realized. In addition, although the example using the hook 2 is shown here as a lifting engagement part, the case where the bolt 1 of the shackle is inserted into the engagement hole 12a shown in FIG. Alternatively, the rope 3 may be directly inserted into the engagement hole 12a and lifted up.

  Next, the structure of the hanging metal fitting 1 will be described with reference to FIGS. 4 shows the right side of FIG. 3, and FIGS. 5, 6, and 7 show cross sections AA, BB, and CC, respectively, in FIG.

  First, the overall structure of the hanging bracket 1 will be described with reference to FIGS. As shown in FIG. 2, the hanging metal fitting 1 has a basic shape of a pair of side plates 10 arranged in parallel to each other, and each side plate 10 has a connecting shaft 11 and a fastening bolt 11a (see also FIGS. 4 and 5). ) Are coupled at a predetermined interval by a plurality of coupling portions. An annular engagement ring portion 12 having an engagement hole 12a with which the hook 2 engages is formed at the upper portion of the side plate 10 so that the engagement holes 12a are opened between the pair of side plates 10 in the respective side plates 10. (See FIGS. 5 and 6). When the hanging bracket 1 is in use, both ends of the rope 3 (see FIG. 3) wound in a loop around the outer periphery of the engagement ring portion 12 extend from both diagonally lower sides of the hanging bracket 1 and its end portions (FIG. 1). Terminal portion 3a) is coupled to a load 6 as a lifting object through a shackle 4, an eyebolt 5, and the like.

  The configuration of the engagement ring portion 12 will be described. As shown in FIGS. 3 and 5, the engagement ring portion 12 has the outer cylinder member 14 rotatably fitted on the outer periphery of the inner cylinder member 13 fixed to the side plate 10 with a sliding member 15 interposed. It has a configuration. In this structure, the outer periphery of the outer cylinder member 14 is a rope winding surface 14a (see also FIG. 5) on which the rope 3 is wound in a loop shape. An engagement hole 12a with which the hook 2 engages is provided on the inner periphery of the inner cylinder member 13, and a portion of the engagement hole 12a with which the hook 2 abuts when being lifted is a stacked cylinder in order to reinforce rigidity. The portion 13 a is mounted so as to overlap the inner periphery of the inner cylinder member 13.

  That is, the engagement ring portion 12 has an engagement hole 12a with which the hook 2 which is a lifting engagement portion is engaged, and is arranged with the engagement hole 12a being opened in the side plate 10 between a pair of side plates 10. The rope winding surface 14a around which the rope 3 is wound in a loop shape is provided on the outer periphery. With the configuration of the engagement ring portion 12 as described above, the above-described self-aligning function is realized. Further, in the present embodiment, a rope lock mechanism 20 is provided for pressing and fixing the rope 3 that is automatically aligned in the hanging bracket 1 from the outer peripheral side, and the position of the rope 3 is shifted during the lifting operation. Try to prevent.

  As described above, the outer cylinder member 14 is allowed to rotate relative to the inner cylinder member 13, and the sliding member 15 is interposed between the inner cylinder member 13 and the outer cylinder member 14. The sliding member 15 is made of a self-lubricating resin or oil-impregnated metal material formed into a cylindrical shape, and reduces frictional resistance when the outer cylinder member 14 is rotated relative to the inner cylinder member 13. Has the function of In the inner cylinder member 13 and the outer cylinder member 14 constituting the engagement ring portion 12, the outer cylinder member 14 can be rotated with respect to the inner cylinder member 13, so that the outer cylinder member 14 is rotated by a rotation position adjusting mechanism 40 described later. The rotation position with respect to the inner cylinder member 13 can be adjusted, and the posture adjustment work for matching the posture of the load 6 with a desired posture in the ground cutting state where the load 6 is lifted is possible.

  Next, the configuration of the rope lock mechanism 20 and the rotational position adjusting mechanism 40 will be described with reference to FIGS. 2 and 3 and FIGS. First, the rope lock mechanism 20 will be described. The rope lock mechanism 20 is provided on the side plate 10 and presses the rope 3 wound around the rope winding surface 14a of the engagement ring portion 12 against the rope winding surface 14a from the outer peripheral side, whereby the rope 3 is engaged with the engagement ring portion 12. It has a function to fix the position with respect to.

  As shown in FIGS. 3 and 4, the rope lock mechanism 20 includes a lock lever 21, a lock drive mechanism 27, a lock on / off mechanism 25, and a sprocket 26 as an operation means. The lock lever 21 is a deformed lever-shaped member having a function of transmitting a driving force by the lock driving mechanism 27 and pressing the rope 3 wound on the rope winding surface 14a of the engagement ring portion 12. 21 a is pivotally supported on the side plate 10 by a pivotal support member 22.

  Further, the upper end portion 21b of the lock lever 21 is provided to extend to the outer peripheral surface side of the engagement ring portion 12, and the rope 3 wound on the rope winding surface 14a is provided on the outer peripheral surface of the one end portion 21b. A lock fixing member 24 for pressing from the side is pivotally supported by a pivot pin 24a. Here, the one end portion 21b and the lock fixing member 24 are provided at a position that does not hinder the engagement of the hook 2 into the engagement hole 12a, and good workability during the slinging operation is ensured.

  The other end 21d is coupled to the lower part where the lock lever 21 extends downward through a branch part 21c that branches laterally to the outside of the pair of side plates 10. That is, the other end portion 21 d is disposed outside the pair of side plates 10, and the lock driving mechanism 27 and the lock on / off mechanism 25 described above are disposed on the outer surface sides of the pair of side plates 10. Thus, by providing the two lock drive mechanisms 27 and the lock on / off mechanism 25, it is possible to ensure a stable lock drive force.

  In the rope lock mechanism 20 having the above-described configuration, the other end portion 21d of the lock lever 21 is disposed so as to extend to the drive position 23 set apart from the engagement ring portion 12. In this way, the lock lever 21 is extended downward, and the other end portion 21d is positioned at the drive position 23 set apart from the engagement ring portion 12, whereby the lock drive mechanism 27 is removed from the shaft support member 22. The lever ratio that is the ratio of the distance from the shaft support member 22 to the drive position 23 with respect to the distance up to can be set as large as possible. Thereby, the lock driving force of the lock drive mechanism 27 described below can be efficiently transmitted to the lock fixing member 24 by the lock lever 21.

  At the drive position 23, a lock drive mechanism 27 that applies a lock drive force to the other end 21d is disposed. The lock driving mechanism 27 has a configuration in which an inner cylinder 32 is slidably fitted to an outer cylinder 33 and a spring member 34 that is a compression spring is mounted in the inner cylinder 32. The inner cylinder 32 is coupled to the outer side surface of the side plate 10 by a bracket 31, and the distal end portion of the outer cylinder 33 is in contact with the side surface of the other end portion 21d.

  The elastic force of the spring member 34 used as the lock driving force acts on the other end portion 21d via the outer cylinder 33, so that the lock fixing member 24 causes the rope 3 to the rope winding surface 14a in the engagement ring portion 12. Press. That is, in the rope lock mechanism 20, the lock driving mechanism 27 is disposed at the driving position 23 and is provided at the one end 21 b via the lock lever 21 by applying the lock driving force of the spring member 34 to the other end 21 d. It has a function of pressing the lock fixing member 24 against the rope 3 wound around the rope winding surface 14a.

  A lock on / off mechanism 25 is provided on the opposite surface of the lock drive mechanism 27 at the other end 21 d of the lock lever 21. The lock on / off mechanism 25 has a function of turning on / off transmission of the elastic force of the spring member 34 as a lock driving force to the lock fixing member 24. In the example shown here, the lock-on / off mechanism 25 rotates the cam member 36 that is in contact with the cam contact surface 21e of the other end 21d around the cam shaft 35, whereby the direction of action of the spring force of the spring member 34 is applied. The displacement of the other end portion 21d toward is restricted.

  As shown in FIG. 4, an operation sprocket 26 is coupled to one end of the camshaft 35, and an operation chain 26a is attached to the outer periphery of the sprocket 26 as shown in FIG. ing. By moving the operation chain 26 a up and down, the sprocket 26 is rotated, whereby the cam member 36 can be rotated via the cam shaft 35. Therefore, the sprocket 26 and the operation chain 26 a are operation means for operating the lock on / off mechanism 25.

  2 and 3, the sprocket 26 is shown by a chain line for convenience of display, and the operation chain 26a is not shown in FIG. In addition to the combination of the sprocket 26 and the operation chain 26a, various mechanisms such as a method of rotating the cam shaft 35 by an operation lever or a handle can be used as the operation means for operating the lock on / off mechanism 25.

  The cam member 36 used here has a configuration in which the cam shaft 35 is eccentric to the small arc side in a shape in which two large and small arcs are combined. The spring characteristic of the spring member 34 is a free length L0 in a state where no compression force is applied, and in the state where the first cam portion 36a on the large arc side is in contact with the cam contact surface 21e as shown in FIG. The first length L1 (= L0−ΔL1) where the amount of compression ΔL1 of the spring member 34 is the largest is obtained. As shown in FIG. 9, when the second cam portion 36b on the small arc side is in contact with the cam contact surface 21e, the second length L2 (= L0−ΔL2). Here, ΔL2 is a compression amount smaller than ΔL1.

  That is, the spring member 34 has the maximum force to press the other end 21d at the first length L1 (= L0−ΔL1) shown in FIG. 3, and in this state, the lock driving force is transmitted to the lock fixing member 24. Turns off. In other words, the lock on / off mechanism 25 includes a cam member 36 that restricts the displacement of the other end 21d in the acting direction of the lock driving force, and the spring member 34 is displaced by a predetermined amount (shrinkage amount ΔL1) by the cam member 36. In this state, the transmission of the lock driving force to the lock fixing member 24 is turned off. Also in the second length L2 (= L0−ΔL2) shown in FIG. 9, the spring member 34 is in a state of being compressed by a compression amount ΔL2 rather than the free length L0. Thereby, a resilient force corresponding to the amount of compression ΔL2 acts on the other end portion 21d, and this resilient force becomes a lock driving force when the lock fixing member 24 is pressed against the rope 3.

  When designing the hanging bracket 1, the spring constant of the spring member 34, the amount of compression ΔL 2 and the lever ratio of the lock lever 21 are appropriately set according to the lock fixing force required to fix the rope 3. To do. Thus, since the spring member 34 is in a compressed state in both the on and off states of the lock driving force, a state in which no elastic force acts on the spring member 34 in the lock driving mechanism 27, so-called A play state does not occur and a stable locked state is realized. In this embodiment, an example in which the spring member 34 that is a compression spring is used as the lock driving force is shown. However, the lock driving force can be applied to the other end 21d of the lock lever 21. For example, a drive source other than the spring member 34 may be used for the lock drive mechanism 27.

  Next, the configuration of the rotation position adjustment mechanism 40 that adjusts the rotation position of the outer cylinder member 14 relative to the inner cylinder member 13 will be described. In the side plate 10 shown in FIG. 3, a side plate extending portion 10 a extending partially to the side is provided on one side (left side in the drawing) of the engagement ring portion 12. As shown in FIG. 3 and FIG. 6, the side plate 10 is placed in a range corresponding to the side plate extending portion 10 a in the circumferential range corresponding to the outer cylindrical member 14 of the engagement ring portion 12 in the side plate 10 on one side. A cutout portion 10b that is partially cutout is formed.

  As shown in FIG. 6, a drive member 41 having a shape obtained by partially cutting an arc extends to the outside of the side plate extending portion 10a on the side surface of the outer cylinder member 14 exposed through the notch portion 10b. In this state, they are coupled by the coupling bolt 41b. As shown in FIG. 3, a meshing tooth portion 41a is provided on the outer edge of the drive member 41, and the meshing tooth portion 41a constitutes a gear mechanism 42 and is conductively supported by a fixed shaft 43a. The gear 43 is engaged.

  The configuration of the gear mechanism 42 will be described. As shown in FIG. 7, a gear box 42 a is provided on the outer surface of the side plate extending portion 10 a at a position adjacent to the conduction gear 43. The gear box 42a is provided with a rotatable rotating shaft 45 that penetrates in the lateral direction, and a pinion 44 that is housed in the gear box 42a and meshes with the conductive gear 43 is coupled to the rotating shaft 45. That is, the rotational position adjusting mechanism 40 includes a drive member 41 coupled to the outer cylinder member 14 and extending to the outer surface of the side plate 10, and a gear mechanism 42 that meshes with a meshing tooth portion 41 a provided on the drive member 41. It has become.

  A brake shoe 48 and a sprocket 49 having a function as an operation handle for fine adjustment of the rotational position are coupled to the rotary shaft 45, and an operation chain 49a is attached to the sprocket 49 with both ends hanging down ( (See FIG. 2). By operating the operation chain 49 a in the vertical direction, the rotation shaft 45 rotates, and this rotation is transmitted to the conduction gear 43 through the pinion 44. Further, the rotation of the transmission gear 43 is transmitted to the driving member 41 that meshes with the meshing tooth portion 41 a, whereby the rotation is transmitted to the outer cylinder member 14 coupled to the driving member 41.

  At this time, since the drive member 41 is coupled to the outer cylinder member 14 via the notch 10b, the drive member 41 rotates together with the outer cylinder member 14 only within the range where the notch 10b is formed. It is acceptable. The sprocket 49 and the operation chain 49 a are operation means for operating the rotational position adjusting mechanism 40.

  2 and 3, the sprocket 49 is shown by a chain line for convenience of display, and the operation chain 49a is not shown in FIG. In addition to the combination of the sprocket 49 and the operation chain 49a, various mechanisms such as a method of rotating the rotation shaft 45 by an operation lever or a handle can be used as the operation means for operating the rotation shaft 45.

  Further, as shown in FIG. 7, the lower end portion of the brake shoe 48 is clamped by a pair of brake pads 50 provided in the brake mechanism 47, and this clamping force acts as a braking force that restrains the rotation of the rotating shaft 45. To do. When the rotation of the rotation shaft 45 is restricted, the outer cylinder member 14 to which the drive transmission is coupled via the rotation shaft 45, the pinion 44, the transmission gear 43, and the drive member 41 is prevented from rotating and is rotated to the rotation position. The braking force that fixes That is, the gear mechanism 42 is provided with a brake mechanism 47 for fixing the rotational position of the outer cylinder member 14.

  As an example of the configuration of the brake mechanism 47, in the example shown in the present embodiment, the brake shoe 48 is sandwiched by a brake pad 50 that is biased by a biasing mechanism such as a spring or an elastic member, so that friction is generated. A constant braking force is always applied by force. In the present embodiment, the drive member 41 is configured to be coupled to the rotation shaft 45 via the gear mechanism 2 (meshing tooth portion 41a, transmission gear 43, pinion 44) having a large gear ratio, so that the brake shoe Even if a relatively small braking force is applied to 48, a large braking force can be applied to the outer cylinder member 14 coupled to the drive member 41.

  Here, as the constant braking force, after fine adjustment of the rotation position of the outer cylinder member 14 with respect to the inner cylinder member 13, the braking force is sufficient to fix the rotation position of the outer cylinder member 14 and rotate. The configuration of the brake pad 50 and the urging mechanism is selected so that the operating means for operating the position adjusting mechanism 40, that is, the braking force that does not inhibit the sprocket 49 from being manually rotated by the operation chain 49a is realized. . Of course, an externally controllable drive mechanism such as an electromagnetic solenoid can also be used as a brake drive source for the brake mechanism 47.

  Next, with reference to FIG. 8, the self-aligning function at the time of lifting by the hanging bracket 1 will be described. In FIG. 8, the rope lock mechanism 20 and the rotation position adjustment mechanism 40 are not shown. 8A, the rope 3 in a state where the terminal is fixed to the load 6 (see FIG. 1) is wound around the engagement ring portion 12 in a loop shape, and the hook 2 is engaged with the engagement hole 12a. Indicates the state.

  At this time, the hook 2 is merely engaged with the engagement hole 12a, and the rope 3 is not subjected to tension due to the suspension load. For this reason, the rope 3 wound around the engagement ring portion 12 is in contact with the rope winding surface 14a on the upper surface side, but between the rope winding surface 14a on the lower surface side of the engagement ring portion 12. The gap g is in a loose state. In this state, since the rope 3 is not in a tight state with respect to the engagement ring portion 12, when the hanging bracket 1 is moved in the horizontal direction (arrow a), the rope 3 with respect to the engagement ring portion 12 is The relative position changes according to the movement of the hanging bracket 1.

  And if the hook 2 is raised from this state (arrow b), the tension | tensile_strength by a suspension load will act on the rope 3. FIG. As a result, the hanging bracket 1 automatically moves above the gravity center position G shown in FIG. 1, and the rope 3 is in a tightly bound state with respect to the engagement ring portion 12, and extends over the entire circumference of the engagement ring portion 12. Thus, it is pressed against the rope winding surface 14a. Lifting of the load 6 shown in FIG. 1 is performed in such an automatic alignment state.

  Next, the function of the rope lock mechanism 20 will be described with reference to FIG. As shown in FIG. 8 (b), when the suspension fitting 1 is automatically aligned and the position of the rope 3 with respect to the engagement ring portion 12 is fixed, the lock on / off mechanism 25 operates the operation chain 26 a. The sprocket 26 is rotated by performing an operation (arrow c) to move the cam member up and down, and the cam member 36 is further rotated through the cam shaft 35. At this time, in the state shown in FIG. 3, the cam member 36 is in a state where the first cam portion 36a is in contact with the cam contact surface 21e, and the second cam portion 36b is in contact with the cam contact surface 21e. Then, the cam member 36 is reversed.

  By the reversal of the cam member 36, the spring member 34 expands by the cam displacement difference between the first cam portion 36a and the second cam portion 36b, and the other end 21d is displaced in the direction of the arrow d by the extension. In response to the displacement of the other end portion 21d, the lock lever 21 rotates around the shaft support member 22 (arrow e), and the one end portion 21b moves in the direction close to the engagement ring portion 12 side together with the lock fixing member 24. (Arrow f). The lock fixing member 24 presses the rope 3 against the rope winding surface 14a with a pressing force F corresponding to the elastic force of the spring member 34. As a result, the rope 3 is pressed against the engagement ring portion 12 to enter a rope lock state in which the rotational position is fixed, and the self-aligning state is correctly maintained.

  Next, the function of the rotational position adjusting mechanism 40 will be described with reference to FIG. This rotational position adjustment is performed when the rope 3 needs to be finely adjusted when the load 6 is lifted via the rope 3 attached to the hanging bracket 1 as shown in FIG. This is executed when the outer cylinder member 14 wound in a loop shape needs to be rotated by a required adjustment angle with respect to the inner cylinder member 13, and the rope lock state by the rope lock mechanism 20 described above is executed. It is done in the released state.

  In this rotational position adjustment work, the rotational position adjustment mechanism 40 performs an operation (arrow g) for moving the operation chain 49a up and down in a direction corresponding to a desired rotational adjustment direction. At this time, the operation force against the braking force by the brake mechanism 47 is applied to rotate the sprocket 49 (arrow h), and the pinion 44 is further rotated through the rotation shaft 45. This rotation is transmitted to the transmission gear 43, and the rotation of the transmission gear 43 is transmitted to the drive member 41 via the meshing tooth portion 41a, thereby rotating the drive member 41 in a desired direction (arrow i).

  By this rotation position adjustment operation, the outer cylinder member 14 rotates with respect to the inner cylinder member 13 together with the rope 3 wound around the rope winding surface 14a (arrow j). In this rotational position adjustment, since the brake shoe 48 braked by the brake mechanism 47 is coupled to the rotational shaft 45, the rotational position of the outer tubular member 14 relative to the inner tubular member 13 after the rotational position adjustment is displaced. Is maintained correctly without causing any problems.

  As described above, in the hanging metal fitting 1 shown in the present embodiment, the hook 2 engages the hanging metal fitting 1 used to engage the hook 2 of the elevating mechanism and lift the load via the rope 3. A ring-shaped engagement ring portion 12 provided with a rope winding surface 14a around which the rope 3 is wound in a loop shape, and an engagement ring portion by pressing the rope 3 from the outer peripheral side. The rope lock mechanism 20 is fixed to the position 12. The rope lock mechanism 20 is pivotally supported by the intermediate portion 21a so that the one end portion 21b extends to the outer peripheral surface side of the engagement ring portion 12. The other end 21d is extended to a drive position 23 separated from the engagement ring portion 12, and a lock lever 21 provided at the drive position 23 is applied to the other end 21d. Via the lock lever 21 A configuration including a lock driving mechanism 27 that presses the lock fixing member 24 provided at the one end 21b against the rope 3, a lock on / off mechanism 25 that turns on / off transmission of the lock driving force, and an operating means that operates the lock on / off mechanism 25. It is what.

  Thereby, the following excellent effects are obtained as compared with the prior art. That is, in the prior art, after the rope lock operation is performed, the rope lock state may gradually loosen due to vibration or impact, and the rope may be misaligned during the lifting operation, which may cause the alignment state to shift. there were. On the other hand, in the hanging metal fitting 1 shown in the present embodiment, by adopting the rope lock mechanism 20 having the above-described configuration, it is possible to reliably prevent the displacement of the rope in the middle of the lifting work and to perform a stable lifting work. It can be carried out.

  Furthermore, the hanging metal fitting 1 shown in the present embodiment is the same as the above-described hanging metal fitting 1 used for the same purpose as described above, except that the engagement ring portion 12 is provided with an inner cylinder member 13 provided with an engagement hole 12a and fixed to the side plate 10. The outer cylinder member 14 is provided so as to be rotatable with respect to the inner cylinder member 13 fitted to the inner circumference, and the outer circumference is an outer cylinder member 14 having a rope winding surface 14a. The rotation position adjustment mechanism 40 for adjusting the rotation position and the operation means for operating the rotation position adjustment mechanism 40 are provided.

  Thereby, the following excellent effects are obtained as compared with the prior art. That is, in the prior art, even when using a hanging metal fitting having an automatic alignment function, after lifting the hook 2 and landing the load once, the rope adjustment work for matching the correct posture is performed. There was a need to do. On the other hand, in the hanging metal fitting 1 shown in the present embodiment, the posture adjustment can be performed in the ground cutting state where the load is lifted without requiring the troublesome labor and labor required in the prior art.

  The hanging bracket of the present invention has an effect that the posture can be adjusted in a state where the baggage is lifted up, and is useful in the field of transport work in which the baggage is roped and lifted and moved by an elevating mechanism. .

DESCRIPTION OF SYMBOLS 1 Hanging bracket 2 Hook 3 Rope 6 Luggage 10 Side plate 12 Engagement ring part 12a Engagement hole 13 Inner cylinder member 14 Outer cylinder member 14a Rope winding surface 15 Sliding member 20 Rope lock mechanism 21 Lock lever 24 Lock fixing member 25 Lock On-off mechanism 27 Lock drive mechanism 34 Spring member 36 Cam member 40 Rotation position adjustment mechanism 41 Drive member 42 Gear mechanism

Claims (3)

Both ends are attached to a rope coupled to the load, and are hanging brackets used for lifting the load via the rope by engaging with a lifting engagement portion of a lifting mechanism,
A pair of side plates arranged at predetermined intervals;
A rope winding having an engagement hole with which the lifting engagement portion is engaged, and being arranged between the pair of side plates with the engagement hole being opened in the side plate, and the rope is wound around the outer periphery in a loop shape An annular engagement ring portion provided with a turning surface,
The engagement ring portion is
An inner cylinder member provided with the engagement hole and fixed to the side plate;
An outer cylinder member that is rotatably provided with respect to the inner cylinder member fitted to the inner circumference, and whose outer circumference is the rope winding surface;
Furthermore, a rotation position adjustment mechanism that adjusts the rotation position of the outer cylinder member relative to the inner cylinder member;
Operating means for operating the rotational position adjustment mechanism ,
A hanging bracket comprising a sliding member interposed between an outer periphery of the inner cylinder member and an inner periphery of the outer cylinder member . The rotational position adjusting mechanism includes a driving member coupled to the outer cylinder member and extending to an outer surface of the side plate;
The suspension bracket according to claim 1, further comprising: a gear mechanism that meshes with a meshing tooth portion provided on the driving member. The suspension gear according to claim 1 or 2 , wherein the gear mechanism is provided with a brake mechanism for fixing a rotation position of the outer cylinder member.

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