JP3025992B2 - Prevention device for hanging load - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for preventing a load from being lifted, and more particularly, to a device for preventing a load from being lifted and conveyed by a crane when the load is lifted and transported. It concerns the device.

[0002]

2. Description of the Related Art Conventionally, when a suspended load is lifted by a crane, the suspended load is only suspended by a wire rope. Therefore, an intervening rope or the like is provided on the suspended load for controlling the posture of the suspended load, and a point at which a person installs the suspended load. And the rotating suspended load was adjusted to the correct position. Further, as shown in JP-A 4-3334 92 JP sequentially the unit cylindrical body whose diameter housed telescopically and the wire rope is inserted through the telescopic cylinder body may issue Shin downward By transmitting the rotation of the crane to the telescopic cylinder by engaging the telescopic cylinder with a hook block having a hook for lifting lifting provided at one end of the wire rope, the rotation of the hook block is controlled. In addition, there has been proposed a device for preventing a load from being loaded.

[0003]

However, the work using the above-mentioned intermediary rope is dangerous because the person who operates the intermediary rope enters the lower part of the suspended load. There has been a drawback that the aim of unmanned operation, the hanged load of the crane that has been transported quickly reaching a predetermined position, and automatic setting cannot be achieved.

Further, the telescope type cylinder has the disadvantage that the body is large, the mechanism of the entire apparatus is complicated, and the weight increases.

SUMMARY OF THE INVENTION It is an object of the present invention to control the roll and rotation of a conveyed member, to quickly converge its movement, and to reduce the time required for the member to be conveyed and mounted. There is to get.

[0006]

SUMMARY OF THE INVENTION According to the present invention, there is provided an apparatus for preventing a load from hanging, comprising a swivel portion of a crane and a telescopic frame inserted between a hanger beam suspended from the swivel portion via a hanger rope. The telescopic frame has a plurality of horizontal members disposed above and below, and one end side of each of the upper and lower horizontal members adjacent to each other rotatably supporting the bases thereof,
One upper diagonal member and one lower diagonal member whose free ends are rotatably connected to each other, and the bases thereof are rotatably supported on the other ends of the upper and lower horizontal members, respectively. The upper and lower diagonal members are rotatably connected to each other, and the one and the other upper and lower diagonal members cross each other, and when the telescopic frame extends, the respective free end portions Approach and engage each other to prevent further extension.

[0007] Further, the apparatus for preventing the suspended load of a suspended load according to the present invention is interposed between a swiveling portion of a crane and a hanging beam suspended from the swiveling portion via two hanging ropes. A plurality of sets of pods fitted to the two hanging ropes, and a horizontal member arranged above and below for connecting between the sets of pods, Two upper diagonal members which are rotatably supported at their bases at one end of an upper first horizontal member and which are opposed to each other while being separated back and forth from each other; and are located below the first horizontal member. The base portion is pivotally supported on one end side of the second horizontal member to be rotatably supported, and the free end portion is rotatably supported between the free end portions of the one upper diagonal member. A lower diagonal member, one other upper diagonal member rotatably supporting a base thereof at the other end of the first horizontal member, and a second diagonal member; The base at the other end of the horizontal member and rotatably supported, a free end of the other of the upper oblique member rotatably two spaced one behind the other which is pivotally supported between its free end pair <br/> become more and other lower diagonal member for countercurrent Te, the one and on the other hand, inferior oblique material cross each other, when the telescopic frame is extended, approaching the free end portion of said respective one another And is adapted to be engaged to prevent further extension.

[0008]

Embodiments of the present invention will be described below with reference to the drawings.

In the present invention, as shown in FIG. 1, a boom tip rotating ring 1 of a traveling type boom shuttle type hook swiveling crane (not shown) provided on the lower surface of an erect beam assembly.
Vertical through-holes 2a and 2b are provided at one end and the other end in the diameter direction, respectively. Hanging ropes 3a and 3b are suspended from the through-holes 2a and 2b, respectively.
A hanging beam 5 having a hook 4 for hanging a suspended load is attached to the lower ends of a and 3b, and a telescopic frame 6 is inserted between the tip rotating ring 1 and the hanging beam 5.

As shown in FIGS. 1 to 3, the telescopic frame 6 includes a plurality of sets of sheath tubes 7a and 7b fitted to the ropes 3a and 3b, respectively, and a pair of sheath tubes 7a and 7b. a horizontal member 8, 8 allowed parallel opposed spaced around two mutually connecting horizontally, the first stage of the horizontal member 8,
Interposed between 8, via a pivot pin 9a at one end of their,
One upper end thereof is inserted between two upper diagonal members 10, 10, which are rotatably supported at their upper ends and are spaced apart from each other in front and rear and are opposed in parallel, and the second-stage horizontal members 8, 8. 1 has a lower end pivotally supported via a pivot pin 11a.
A lower diagonal member 12, a pivot pin 13 for rotatably pivoting the upper end of the one lower diagonal member 12 between the lower ends of the two upper diagonal members 10, 10; The other upper end of the ring 1 is rotatably supported by a pivot pin 9b at the upper end thereof via a pivot pin 9b. Two lower diagonal members 15, 15, which are rotatably supported at their lower ends via pivot pins 11 b at the end sides, are separated from each other in front and rear and are opposed to each other in parallel. The lower end of the upper diagonal member 14 is connected to the two lower diagonal members 1
5 comprises a pivot pin 16 pivotally supported between the upper ends, and a similar upper diagonal member, lower diagonal member and pivot pin connecting other horizontal members 8 disposed above and below. Let me know.

The one lower diagonal member 12 and the upper diagonal member 14 extend between the two lower diagonal members 15 and the upper diagonal member 10, respectively.

Since the apparatus for preventing a load from hanging from a suspended load according to the present invention is configured as described above, as shown in FIG. 1, when the suspended load is lifted, the telescopic frame 6 is attached to the ropes 3a and 3b by its gravity. Extending along the rope 3
When a and 3b are lifted and lifted relatively to the rotating ring 1, the telescopic frame 6 is sequentially reduced from the lower part as shown in FIGS.

When the rotary ring 1 is rotated in this state, the rotation is performed by the horizontal member of the telescopic frame 6 and the upper and lower members.
Mechanically transmitted to the suspension beam 5 via a lower oblique material,
The rotation of the suspension beam 5 can be controlled.

Further, the presence of the telescopic frame 6 can prevent the suspended load from rolling during horizontal transportation.

The upper diagonal member 10 and the lower diagonal member 15 are 2
One sheet may be used instead of one sheet.

In order to enhance the prevention of swinging in the direction perpendicular to the suspension beam 5, two sets of telescopic frames 6, 6 which are perpendicular to each other are provided as shown in FIG. Should be connected to

[0017]

As described above, according to the apparatus for preventing a suspended load from being lifted, the position of the suspended load by the crane operation can be quickly determined, the rotation control during lifting / transportation, and the control of the suspended load can be performed. The convergence effect is obtained, and there is no need to guide the lifting member by an intervening rope, etc., and therefore, the positioning is performed safely without working below the suspended load. There is a great benefit that it can be performed efficiently and automation can be achieved.

Further, since the rotation control and the prevention of unloading can be achieved by a light frame, economy and safety can be improved.

[Brief description of the drawings]

FIG. 1 is a front view of an apparatus for preventing a load from hanging according to the present invention.

FIG. 2 is an enlarged front view of a main part of a telescopic frame of the device for preventing a suspended load from hanging according to the present invention.

FIG. 3 is an enlarged plan view of a main part of the apparatus for preventing a load from hanging according to the present invention when the telescopic frame is closed.

FIG. 4 is a front view for explaining the operation of the apparatus for preventing a load from hanging according to the present invention.

FIG. 5 is a front view for explaining the operation of the apparatus for preventing a load from hanging according to the present invention.

FIG. 6 is a front view for explaining the operation of the apparatus for preventing a load from hanging according to the present invention.

FIG. 7 is a front view for explaining the operation of the apparatus for preventing a load from hanging according to the present invention.

FIG. 8 is an explanatory plan view of a telescopic frame according to another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF REFERENCE NUMERALS 1 boom tip rotating ring 2a through hole 2b through hole 3a rope 3b rope 4 hanging hook for hanging load 5 hanging beam 6 telescopic frame 7a sheath tube 7b sheath tube 8 horizontal member 9a pivot pin 9b pivot pin 10 upper oblique material 11a Pivot pin 11b pivot pin 12 lower diagonal 13 pivot pin 14 upper diagonal 15 lower diagonal 16 pivot pin

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A 2-13090 (JP, U) JP-A 55-27675 (JP, Y2) (58) Fields investigated (Int. Cl. ⁷ , DB name) B66C 13/00-15/06 B25J 18/02 B66F 7/06

Claims (2)

(57) [Claims] 1. A swivel portion of a crane and a telescopic frame inserted between suspension beams suspended from the swivel portion via a suspension rope, wherein the telescopic frame includes a plurality of telescopic frames arranged above and below. One of the upper and lower diagonal members having their bases pivotally supported on one end sides of upper and lower horizontal members adjacent to each other so as to be rotatable and their free ends pivotally connected to each other. The upper and lower horizontal members are rotatably supported at their bases at the other end sides thereof, and the other upper and lower diagonal members having free ends rotatably connected to each other, When the one and the other upper and lower diagonals cross each other, and the telescopic frame extends, the respective free ends come closer to each other and engage to prevent further extension. Characteristic device for preventing unloading of suspended loads. 2. A swivel portion of the crane and a telescopic frame interposed between suspension beams suspended from the swivel portion via two suspension ropes, wherein the telescopic frame includes the two suspensions. Plural sets of sheaths fitted to the rope, horizontal members arranged above and below to connect between the sheaths of each set, and a base portion rotatable on one end side of the upper first horizontal member while the upper slant members of opposing spaced one behind the other two were pivoted on, the base rotatably on one end side of the second horizontal member located on the lower side of the first horizontal member One lower diagonal member pivotally supported and having its free end rotatably supported between the free ends of the one upper diagonal member; and One other upper diagonal member pivotally supporting the base, and the base is rotatable on the other end of the second horizontal member. Pivoted, become more and other lower diagonal member which faces spaced two behind the other to the free end portion is rotatably supported in the other of the upper diagonal member between its free end, the one And the other upper and lower oblique members intersect with each other, and when the telescopic frame extends, the respective free ends approach each other and engage with each other to prevent further extension. Device to prevent unloading of suspended loads.