JPH0632935Y2 - Hanging equipment such as shaped steel - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a H-shaped, I-shaped, etc. shaped steel hanging device such as a beam, a column, or a girder.

[Prior Art and its Problems] Conventionally, as the above-mentioned hanging tool, one shown in FIGS. 10 to 12 is generally used.

Fig. 10 shows a claw hacker clamp, in which two hook members are suspended on a wire having metal rings on both ends, and the hook portion of this hook member is manually hooked on the shaped steel, and then the winch wire The hook is hooked on the metal ring of the wire to hang the shaped steel, but such a means not only requires manpower, but there is concern about the engagement between the hook part of the hook member and the shaped steel. There is a problem.

Fig. 11 shows a wire large-turning means, in which a wire with ring metal fittings attached at both ends is manually wrung around a shaped steel, and then the metal wire fittings at both ends of the wire are hooked on the hooks of the crane wire. Although the shaped steel is hung up, there is no concern that the shaped steel will come off the wire, but in addition to requiring labor, the shaped steel is raised from above the foundation by means of an intermediate to roughly rotate the wire. It is necessary to support and there is a problem in workability.

In order to solve the above-mentioned problems, as shown in FIG. 12, unmanned members for clamping shaped steel by power are provided on the lower left and right sides of the horizontal frame by hook members that are mutually offset and separated by a moving mechanism. Shaped steel clamps have been developed. However, in order to operate the two hook members that clamp the shaped steels, power such as a motor is required, and the power supply mechanism is complicated. Not only becomes larger, but also has a weight problem.

The purpose of the present invention is to make use of the vertical sliding motion of the switching frame with respect to the main body frame so that the switching frame is fixed to the main body frame every time the hoisting tool is moved up and down and the slide is repeatedly moved. The object of the present invention is to provide a hoisting tool such as a shaped steel that can be properly hoisted and left unattended in a state and can solve the problems of the conventional technology with a simple configuration.

[Means for Solving the Problems] The configuration of the present invention for solving the problems of the prior art is to install two body frames 1a, 1b in a vertical posture in which the lower side is in contact with the upper surface of a suspended object such as shaped steel, The shaft 2 at the center of the upper part and the shafts 3 provided on both sides of the lower part are combined so that a required space is maintained,
A vertically movable slide switching frame 4 in which a crane wire is connected between the two main body frames 1a and 1b is provided so as to be vertically movable, and a vertically long guide slot 5 is provided at the center of the switching frame 4 to guide the guide wire. The shaft 2 is inserted into the long hole 5, and the inner ends of the upper and lower link rods 7a and 7b constituting the parallel link mechanism 7 are displaced on both lower sides of both sides of the switching frame 4 so as to be displaced inward and outward. Are symmetrically supported, and the outer ends of the link rods 7a, 7b are respectively supported on the upper portions of the hook members 8 oppositely provided with hook portions 8a. And the above axis 3
Is connected by a connecting rod 9 and the inner end of the link rod 7a is axially supported by the switching frame 4.
The shafts 10 are respectively inserted into the longitudinal guide slots 11 provided in both the main body frames 1a and 1b, and the switching frame 4 is provided with a single rod 12 at the front and rear ends at the center of the lower end thereof.
13 is rotatably inserted, and a cross-shaped switching member 14 having a side parallel to the working rod 12 is fixed to a shaft 13 portion between one working rod 12 and the switching frame 4. The shaft portion between the other action rod 12 and the switching member 14 has a square front shape, and an arc-shaped recess 15a is formed on each side corresponding to each side of the cross-shaped switching member 15. The rotation restricting plate 15 is fixed, and a rolling wheel 17 provided at the lower end of a lever 16 whose upper end is pivotally supported at a lower side of the switching frame 4 with a required interval is fitted in the recess 15a of the rotating restricting plate 15. A spiral ridge 18 that elastically presses the rolling wheel 17 against the recess 15a is provided between the intermediate portions of the levers 16 that are fitted together, while the action rod 12 in the vertical posture passes through and the horizontal posture is obtained. Two stopper members 19 having a gap 20 with which the operating rod 12 of the above-mentioned engages with the lower surface are respectively provided on the inner surfaces of the main body frames 1a and 1b. On the inner surface of the lower part of the rear main body frame 1b, the downward rotation is restricted by a stopper pin 21 which is rotated by contacting and separating the switching member 14, and a switching rod 22 pivoting only upward is pivotally supported. It is a thing.

[Embodiment] An embodiment of the present invention will be described in detail with reference to the drawings.

1 is an exploded perspective view, FIG. 2 is a front view of the main body frame and the switching frame in a fixed state, FIG. 3 is a partially cutaway front view of the main body frame removed, and FIG. 4 is a switching frame. Partially cutaway front view in the removed state, FIG. 5 is a partially cutaway front view showing the rearmost body frame, FIG. 6 is a side view, and FIG. 7 is a partially cutaway plan view of essential parts, FIG. a, b,
c and d are flow charts showing clamping and releasing of shaped steel,
9a to 9j correspond to the flow chart in FIG. 8 and show the relationship between the single-character operating rod and the stopper member, the relationship between the cross-shaped operating rod and the stopper member, and the cross-shaped switching member and the switching rod. It is explanatory drawing which shows a relationship.

As is clear from FIGS. 1 and 6, 1a and 1b are body frames having a two-piece structure, and the two body frames 1a and 1b are
A predetermined space is maintained by the shaft 2 at the center of the upper part and the shafts 3 provided on both sides of the lower part. 4 is the above body frame 1
A switching frame provided so as to be vertically slidable between a and 1b, and a long guide slot 5 is provided in the central portion of the switching frame 4 in the vertical direction. The shaft 2 bridged between 1a and 1b is inserted. Therefore, the switching frame 4 is configured to slide up and down with the shaft 2 as a guide, and the crane wire 6 is connected to the top of the switching frame 4.

On both sides of the lower part of both sides of the switching frame 4, the inner ends of the upper and lower link rods 7a and 7b that are displaced inward and outward to form the parallel link mechanism 7 are axially supported symmetrically, respectively. The outer ends of the link rods 7a and 7b are provided with hooks 8
The a is axially supported on the upper part of the hook member 8 provided oppositely. The middle portion of the link rod 7a and the shaft 3 are connected by a connecting rod 9, and the shaft 10 in which the inner end of the link rod 7a is pivotally supported with respect to the switching frame 4 is connected to both the main body frames. It is inserted into the longitudinal guide slot 11 provided in 1a, 1b.

In addition, a shaft 13 provided with a single-character-shaped operating rod 12 at the front and rear ends of the switching frame 4 at a right angle to the axis is rotatably inserted through the center of the lower end of the switching frame 4, and one of the functions is further provided. A cross-shaped switching member 14 having a side parallel to the operating rod 12 is fixed to a shaft 13 portion between the rod 12 and the switching frame 4. Further, a rotation restricting plate 15 having a square front shape is fixed to the shaft portion between the other action rod 12 and the switching member 14. Each side of the rotation restricting plate 15 is made to correspond to each side of the cross-shaped switching member 15, and an arcuate recess 15a is formed on each side.

Reference numeral 16 denotes a lever whose upper end is axially supported at a lower side of one side of the switching frame 4 with a required gap, and the lower ends of the both levers 16 are roller wheels which are appropriately fitted in the recesses 15a of the rotation restricting plate 15. A pivot spring 17 is rotatably supported, and a spiral spring 18 for elastically pressing the rolling wheel 17 against the recess 15a is elastically provided between the intermediate portions of the levers 16. The working rods 12 provided at both ends of the shaft 13 are arranged close to the front and rear body frames 1a and 1b, and when the working rods 12 are in the vertical posture as shown in FIG. 2 provided on the inner surface of the body frame 1a, 1b
When passing through the gap 20 between the individual stopper members 19 and the working rod 12 is in the horizontal posture as shown by the imaginary line, the lower surfaces of both stopper members 19 are engaged, that is, the switching frame 4 is connected to the main body frame 1a, It is fixed to 1b. In addition, on the lower inner surface of the rear body frame 1b,
The stopper pin 21 restricts downward rotation, and a switching rod 22 that rotates only upward is pivotally supported so that the switching member 14 comes into contact with and separates from the switching rod 22. The hanging tool A of the present invention is configured by the above-described configuration.

[Description of Action] Next, the action of the above-described embodiment will be described.

As shown in FIG. 8a, the lifting tool A is hoisted and descends in the direction of the shaped steel 23 to be conveyed, and the lower sides of the main body frames 1a and 1b are brought into contact with the upper surface of the shaped steel 23 (not shown) to make the crane wire. 6
When is loosened, the switching frame 4 descends by its own weight.
That is, as shown in FIGS. 9A and 9B, the operating rod 12 and the switching member 14 provided on the shaft 13 pivotally supported by the switching frame 4 are lowered, the operating rod 12 is separated from the stopper member 19 downward, On the other hand, one side of the switching member 14 descends while abutting against the switching rod 22, and the abutting action causes the shaft 13 to move as shown in FIGS.
When it is rotated 90 °, the posture shown by the solid line, that is, the working rod 12 takes a vertical posture. At this time, the rolling wheel 17 is press-fitted into the recess 15a of the rotation restricting plate 15 that rotates together with the shaft 13, and the free rotation of the shaft 13 is prevented.

In this state, as shown in FIG. 8b, when the crane wire 6 is pulled up, only the switching frame 4 rises, and the above-mentioned working rod 12 attached to this is the stopper member.
As shown in FIG.
As indicated by f, the switching member 14 rises and passes in the same posture while avoiding the switching rod 22 upward. In this way, when the switching member 14 passes through the switching rod 22, the switching rod 22 returns to its original position due to its own weight and is placed on the stopper pin 21. On the other hand, due to the lifting action of the switching frame 4, the shaft 10 of one link rod 7a of the link mechanism 7 causes the main frame 1a, 1
Ascending while being guided by the guide elongated hole 11 provided in b, the left and right hook members 8 come close to each other in a state where the posture shown in the drawing is maintained by a synergistic action with the connecting rod 9, and finally as shown in FIG. 8c. The hook member 8 abuts on both side edges of the shaped steel 23, and the hook portion 8a of the hook member 8 engages with the shaped steel 23. At this time, the switching frame 4 is prevented from rising, and the shaped steel 23 is lifted by the winding action of the crane wire 6 and conveyed at a predetermined position.

Next, as shown in Fig. 8d, when the suspended shaped steel 23 is left at a predetermined position, the crane wire 6 loosens, and the switching frame 4 descends by its own weight as shown in Figs. 9g and h. , The vertical operating rod 12 passes between the stopper members 19 and descends, and one side of the switching member 14 abuts on the switching rod 22 and is rotated, so that the shaft 13 is rotated by 90 ° and the operating rod 12 is rotated. Takes a horizontal position as shown by the solid line. On the other hand, the shaft 10 of the link rod 7a is the guide elongated hole 1 of the body frames 1a and 1b.
The hook member 8 is opened outward by the synergistic action with the connecting rod 9 while being guided by 1, and the shaped steel 23 is left unattended. Hanging equipment A
With this posture maintained, it is lifted again as shown in FIG. 9 i, j and is carried to the next lifting position of the shaped steel 23, and the same operation as described above is repeated. In this way, with respect to the main body frames 1a and 1b, the coupling and releasing of both frames are alternately performed every time the switching frames 4 are vertically arranged.

[Effect of the Invention] According to the configuration of the present invention as described above, the following effects can be obtained.

(a) Utilizing the self-weight lowering operation of the switching frame that is supported so that it can move up and down with respect to the main body frame, the action rod provided on this switching frame is engaged or disengaged with the lower surface of the stopper member of the main body frame. In addition, it is possible to maintain the lifting posture with respect to the object to be suspended at the time of engagement and the clamp posture at the time of non-engagement, and the problems of the conventional technology can be solved by a simple configuration.

(b) The engagement / non-engagement posture of the operating rod with respect to the stopper member is switched by the contacting / separating action of the cross-shaped switching member provided coaxially with the operating rod and the switching rod provided on the main body frame. Since only the upward rotation of the switching rod is restricted, the shaft can be rotated through the switching member only when the switching member is lowered, and the alternate switching between the horizontal posture and the vertical posture of the operating rod can be appropriately performed.

(c) The structure is simple and miniaturized without using a specific power, and in addition, unmanned operation can be rationalized.

[Brief description of drawings]

1 is an exploded perspective view, FIG. 2 is a front view of the main body frame and the switching frame in a fixed state, FIG. 3 is a partially cutaway front view of the main body frame removed, and FIG. 4 is a switching frame. Partially cutaway front view in the removed state, FIG. 5 is a partially cutout front view showing the rearmost body frame, FIG. 6 is a side view, and FIG. 7 is a partially cutaway plan view of essential parts. a, b,
c and d are flow charts showing clamping and releasing of shaped steel,
9a to 9j correspond to the flow chart in FIG. 8 and show the relationship between the one-character operating rod and the stopper member, the relationship between the cross-shaped operating rod and the stopper member, and the cross-shaped switching member and the switching rod. FIGS. 10 to 12 are explanatory views showing the relationship, and are explanatory views of a conventional example. A ... Lifting equipment, 1a, 1b ... Main body frame, 2 ... Shaft, 3 ...
… Axis, 4 …… Switching frame, 5 …… Guide slot, 6 ……
Crane wire, 7 ... Link mechanism, 7a, 7b ... Link rod, 8 ... Hook member, 8a ... Hook part, 9 ... Link rod, 10 ... Shaft, 11 ... Guide slot, 12 ... Action rod, 13 ……
Shaft, 14 …… Switching member, 15 …… Rotation control plate, 15a …… Recess, 16 …… Stopper member, 20 …… Gap, 21 …… Stopper pin, 22 …… Switching rod, 23 …… Shaped steel.

Claims (1)

[Scope of utility model registration request] 1. Two body frames (1a), (1b) in a vertical posture in which a lower side is in contact with an upper surface of a suspended object such as a shaped steel are provided on a shaft (2) at an upper center and both sides of a lower part. The shaft (3) is connected so as to maintain a predetermined distance, and the vertically movable slideable switching frame (4) connected to the crane wire is vertically movable between the main body frames (1a) and (1b). The guide frame (4) is provided with a vertically elongated guide slot (5) in the center of the switching frame (4), and the shaft (2) is inserted into the guide slot (5). 4) Both sides on the bottom both sides,
The inner ends of the upper and lower link rods (7a), (7b) that are displaced inward and outward to form the parallel link mechanism (7) are symmetrically pivoted respectively, and the link rods (7a), ( At the outer end of 7b), the hook portion (8a) is axially supported on the upper portion of the hook member (8) provided so as to face each other, and the middle portion of the link rod (7a),
The shaft (3) is connected to the shaft (3) by a connecting rod (9), and the shaft (10) pivotally supporting the inner end of the link rod (7a) with respect to the switching frame (4) is used for both the main body frames. (1
Inserted in the longitudinal guide slots (11) provided in (a) and (1b) respectively, and provided in the central portion of the lower end of the switching frame (4) at the front and rear ends with single-character operating rods (12). The shaft (13) is rotatably inserted, and further one working rod (12) and the switching frame (4)
A cross-shaped switching member (14) having a side parallel to the above-mentioned operating rod (12) is fixed to the shaft (13) portion between the other operating rod.
The shaft portion between (12) and the switching member (14) has a square front shape, and an arcuate recess (15a) is formed on each side corresponding to each side of the cross-shaped switching member (15). Formed rotation control plate (15)
The wheel is fixed to the concave portion (15a) of the rotation restricting plate (15) and is provided at the lower end of the lever (16) whose upper end is axially supported by the lower side of the switching frame (4) with a required space. (17) is fitted properly, and between the middle parts of the levers (16), the spiral ring (1) that presses the rolling wheel (17) against the recess (15a) is provided.
8) is installed elastically, and on the other hand, two stopper members (19) having a gap (20) through which the working rod (12) in the vertical posture passes and the working rod (12) in the horizontal posture engages with the lower surface. Are provided on the inner surfaces of the main body frames (1a) and (1b), respectively, and further, on the lower inner surface of the rear main body frame (1b), the stopper pin () which is rotated by contacting and separating the switching member (14). A hanging tool such as a shaped steel, which is pivotally supported by a switching rod (22) which is restricted from turning downward by (21) and turns only upward.