JP3636630B2 - Hanging device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a suspension device that is inserted into a suspension hole that is formed in a building member.
[0002]
[Prior art]
When constructing buildings, it is necessary to transport and assemble building members such as roofs, floors, and wall materials, but most of the work relies on cranes. As a method of transporting a building member as described above with a crane, the suspension device (31) is inserted into a suspension hole previously drilled in the building member, and the suspension device (31) hooks the building member. After confirming that it does not leave, the building member is lifted and transported by a crane via the suspension device (31).
[0003]
The structure of the conventional suspension device (31) includes an insertion shaft (33) in which a through hole (33a) capable of slidably storing the inner shaft (34) in the axial direction and an insertion of the insertion shaft (33). A locking portion (37) pivotably mounted on a pivot shaft (40) in a guide groove (39) formed in a side end portion, and slidable inside the insertion shaft (33) An inner shaft (34) attached to the locking portion (37) via a link (41) and constantly biased in the extraction direction by a spring (38), and a suspension of the insertion shaft (33) And a suspension arm (36) disposed at the lower end.
[0004]
Next, the entrance / exit mechanism of the locking portion (37) of this conventional example will be briefly described. When the operating lever (35) provided at the upper end of the inner shaft (34) is pushed with a finger against the spring force of the spring (32), the inner shaft (34) moves to the insertion end side and the link (41 ), The locking portion (37) rotates around the pivot shaft (40), and the locking portion (37) falls down and fits in the guide groove (39) of the insertion shaft (33).
[0005]
Conversely, when the finger is released from the operation lever (35), the inner shaft (34) moves to the spring (32) side by the action of the spring (32), and the locking portion (37) is moved via the link (41). The mechanism is pulled up by the inner shaft (34) and protrudes out of the insertion shaft (33).
[0006]
When the suspension device (31) having such a mechanism is inserted into the suspension hole drilled in the building member, the operation lever (35) is pushed down so that the locking portion (37) is accommodated in the insertion shaft (33). In this state, the insertion side portion (31a) of the suspension device (31) is inserted into the suspension hole, and the operation lever (35) is released when penetrating. Then, the operating lever (35) is pushed up by the elastic force of the spring (32), the locking portion (37) protrudes out of the insertion shaft (33) again, and the locking portion (37) is located at the edge of the suspension hole. Engage. As described above, the suspension device (31) is inserted into the suspension hole, and the building member is supported by the locking portion (37), so that the preparation for lifting is completed.
[0007]
Next, the suspension device (31) attached to the building member is lifted and transported by a crane, and another building member may touch the operation lever (35) during transportation or assembly. At this time, when the operating lever (35) is pushed and the spring (32) is bent, the locking portion (37) is rotated and fits in the insertion shaft (33), and the locking portion (37) is suspended. There is a possibility that the building members fall out of the hole edge during transportation, which is very dangerous for the operator.
[0008]
[Problems to be solved by the invention]
The problem to be solved by the present invention is to develop a suspension device that does not cause accidents such as building members falling off during transportation or assembly by a crane.
[0009]
[Means for Solving the Problems]
The suspension device (1) described in "Claim 1"
(a) an insertion shaft (3) inserted through a suspension hole (15a) drilled in the building member (15) and having a bifurcated pivot arm (12) formed at its suspended end;
(b) a suspension arm (6) for mounting a transfer device pivotably attached to the pivot arm (12) from the suspension side end of the insertion shaft (3) ;
(c) an inner shaft (4) inserted through the insertion shaft (3) so as to be slidable in the axial direction;
(d) a locking portion (7) that protrudes and immerses into and out of the insertion shaft (3) from the side surface of the insertion shaft (3) in conjunction with the axial reciprocation of the inner shaft (4);
(e) a protruding pin (9) provided at the suspended end of the inner shaft (4);
(f) A fan-shaped stopper centered on the pivoting portion (16) that is formed at the free end of the suspension arm (6) and engages with the protruding pin (9) in the standing state of the suspension arm (6) (6a) and is composed.
[0010]
“Claim 2” is a more specific example of “Claim 1”.
(a) The long guide groove (10a) and the short guide groove (10) b are arranged so as to face each other at the side surface of the insertion side end inserted through the suspension hole (15a) drilled in the building member (15). A cylindrical insertion shaft (13) formed with a bifurcated pivot arm (12) at the other end;
(b) a suspension arm (6) for pivotally mounting on the pivot arm (12) for mounting the transfer device;
and (c) the insertion shaft (3) hanging lower end insertion axis from (3) the inner shaft (4) which is inserted axially into the insertion axis at slidably (3) of,
(d) It is pivotally attached to the insertion side end of the inner shaft (4) so that it can be tilted up and down, and when the inner shaft (4) is pushed toward the insertion side end, the long guide groove (10a) and the short guide groove (10b ) Protrudes out of the insertion shaft (3), and when the inner shaft (4) is pulled out in the direction opposite to the insertion end, the protruding portion (7a) engages with the short guide groove (10b) and the protruding portion A locking portion (7) in which (7a) is pulled into the insertion shaft (3);
(e) a projecting pin (9) projecting from the end of the inner shaft (4) on the side of the pivot arm;
(f) Centered on the pivoting portion (16) formed at the suspension side end of the suspension arm (6) and engaged with the protruding pin (9) in the standing state of the suspension arm (6) It is characterized by comprising a fan-shaped stopper (6a).
[0011]
In the hanging device (1) of the present invention, the locking portion (7) interlocks with the axial reciprocation of the inner shaft (4) disposed in the insertion shaft (3) and the guide groove (10a) ( 10b) protrudes out of the insertion shaft (3), or conversely fits in the insertion shaft (3), so that the construction member (15) is supported by the protruding locking portion (7) and the crane The suspension device (1) can be detached from the building member (15) by storing the locking portion (7) in the insertion shaft (3).
[0012]
In addition to this, the suspension device (1) has an important feature in that the protruding pin (9) formed on the suspension side end side of the inner shaft (4) and the suspension arm (6) are free. And a stopper (6a) formed at the end. That is, when the suspension arm (6) is lifted by the transfer device, the stopper (6a) is directly above the protruding pin (9), and the inner shaft (4) is suspended by contact with something during transfer. Even if the stopper (6a) tries to come out to the end side, the protruding pin (9) cannot come out to the suspended end side. Therefore, no matter what force is applied during conveyance, the suspension device (1) is connected to other building members (15) during transportation or assembly as long as the protruding pin (9) is engaged with the stopper (6a). Even if it touches, the suspension device (1) is not detached from the suspension hole (15a) and the building member (15) does not fall.
[0014]
In this case, if the stopper (6a) is fan-shaped around the pivot (16 ), an external force is applied to the building member (15) during transportation of the building member (15) to the insertion shaft (3). On the other hand, even if the suspension arm (6) is shaken or the insertion shaft (3) attached to the building member (15) is detached from the suspension arm (6), the stopper (6a) is fan-shaped. Therefore, even if the stopper (6a) rotates together with the suspension arm (6) around the mounting part (16), any part of the arc of the stopper (6a) It is directly above and can prevent the protruding pin from coming off the stopper (6a).
[0015]
DETAILED DESCRIPTION OF THE INVENTION
The present invention will be described with reference to the illustrated embodiments. The suspension device (1) of FIG. 1 is disposed at an insertion shaft (3), an inner shaft (4) disposed inside the insertion shaft (3), and a lower end of the inner shaft (4). A locking portion (7), a cylindrical portion (8) formed integrally with the upper end portion of the inner shaft (4), and a protrusion protruding at right angles to the central axis on the side surface of the cylindrical portion (8) A pin (9), a handle ring (5) disposed at the end of the inner shaft (4) on the cylindrical portion (8) side, and a suspension arm (6) for hooking the crane when it is lifted Consists of
[0016]
The cross-sectional shape of the insertion shaft (3) is a hollow circle, and two long and short guide grooves (10a) and (10b) are formed facing each other in the axial direction of the insertion shaft (3). An inner shaft (4) is housed in the insertion shaft (3) so as to be able to reciprocate in the axial direction, and a rotation stop projection (11) configured by a set screw screwed to the inner shaft (4). ) Is slidably fitted in the long guide groove (10a). The long guide groove (10a) is formed from the intermediate portion of the insertion shaft (3) to the insertion end, and at the upper end position, at least the inner shaft (4) moves in the pulling direction, and the locking portion (7) Rotating around the pivot shaft (17), the protruding part (7a) is housed in the guide groove (10a) (10b) of the insertion shaft (3), and the anti-rotation projection (11) reaches the highest point. It is formed to the place where the position when it is raised can be covered.
[0017]
On the other hand, the length of the short guide groove (10b) is such that the protruding portion (7a) of the locking portion (7) protrudes from the pair of long and short guide grooves (10a) (10b) of the insertion shaft (3). When (4) moves in the pulling direction, one projecting part (7a) abuts the short guide groove (10b) during the movement and moves in the pulling direction while rotating around the pivot shaft (17). Finally, the projecting portion (7a) is formed so as to be accommodated in the pair of long and short guide grooves (10a) and (10b) of the insertion shaft (3). (Figure 5)
In the split groove (18) formed at the insertion end of the inner shaft (4), there is a locking portion (7), which is held up and down by the pivot shaft (17). When the locking portion (7) stands up in the axial direction, the locking portion (7) is formed in a size that can be accommodated. Although there is no particular limitation on the shape of the locking portion (7), in this embodiment, the inclined surface of the protruding portion (7a) on the insertion side is a trapezoid having substantially the same two oblique sides, and the thickness thereof is long and short guide grooves (10a) (10b ).
[0018]
A stopper pin (19) is stretched around the lower end of the insertion shaft (3), and a protruding portion (7a) on the insertion end side of the locking portion (7) housed in the dividing groove (18) is formed. It comes to contact. (20) is a closing member for closing the insertion end of the insertion shaft (3).
[0019]
A cylindrical part (8) thicker than the inner shaft (4) is continuously and integrally formed at the suspended end of the inner shaft (4), and is in contact with the suspended end of the insertion shaft (3). And serves as a stopper for the inner shaft (4). Furthermore, a handle ring (5) for moving the inner shaft (4) in the direction of pulling out is attached to the ring mounting portion (8a) protruding from the cylindrical portion (8). The cylindrical portion (8) is press-fitted with a projecting pin (9) at a right angle to the central axis, and projects from the side surface at a right angle in the opposite direction.
[0020]
A pivoting arm (12) is formed on the suspension side end of the insertion shaft (3), and the suspension arm (6) is a bolt ( 13) and a nut (14) are rotatably connected. A stopper (6a) is continuously and integrally formed at the free end of the suspension arm (6) beyond the pivot part (16), and its shape is centered on the pivot part (16). It is fan-shaped. The center angle of the fan is not particularly limited, but if the angle is too small, the suspension arm (6) will only rotate a little, the stopper (6a) will move away from the position directly above the protruding pin (9), and the protruding pin (9) will break away.
[0021]
On the other hand, if the angle is too large, the projecting pin (9) is still engaged with the fan-shaped stopper (6a) even if the suspension arm (6) is largely tilted, and the suspension device (1) can be removed from the suspension hole (15a). When detaching, it becomes an obstacle to the work of releasing the engagement of the engaging portion (7) by moving the handle ring (5) in the direction of pulling out the inner shaft (4).
[0022]
Next, the operation of the present invention will be described. First, as shown in FIG. 9, the handle ring (5) is held and the suspension device (1) is hung. Since the handle ring (5) is arranged at the upper end of the inner shaft (4), if the handle ring (5) is held, the insertion shaft (3) is lowered by its own weight, and the inner shaft (4) is relatively raised. The locking part (7) is accommodated in the insertion shaft (3). (FIGS. 1 and 2) In this state, the insertion shaft (3) is inserted into the suspension hole (15a) formed in the building member (15).
[0023]
Then, when the insertion shaft (3) is penetrated to a position where the pivot arm (12) at the upper end of the insertion shaft (3) contacts the building member (15), the handle ring (5) is released. Then, since the pivoting arm (12) of the insertion shaft (3) is now supported by the building member (15), only the inner shaft (4) is lowered by its own weight, and the protrusion on the insertion end side is projected along with this lowering. The inclined lower surface of the portion (7a) contacts the stopper pin (19) and is forcibly rotated, and the protruding portions (7a) (7a) on both sides of the locking portion (7) are both long and short guide grooves (10a) (10b ) Protrudes out of the insertion shaft (3) and engages the penetrating side of the suspension hole (15a). Holding the handle ring (5) in this way and putting the suspension device (1) into the suspension hole (15a), when the handle ring (5) is released, the suspension device (1) is automatically prepared for lifting. Is in a completed state. (See Figure 10)
Next, as shown in FIG. 11, when the hook (21) of the crane (22) is hung on the rope (23) suspended between the suspension arms (6) and lifted, the locking portion (7) is built. The member (15) can be supported and lifted and transported to a predetermined place. At this time, since the suspension arm (6) is connected to the crane (22), the stopper (6a) is located directly above the projecting pin (9) at the lowest point and is suspended during transportation and assembly. Even if the device (1) or building member (15) collides with another building member and the inner shaft (4) moves in the direction of removal, the protruding pin (9) collides with the stopper (6a) directly above. Further movement in the removal direction is hindered. Accordingly, the locking portion (7) remains protruding from the insertion shaft (3), and the suspending device (1) is not detached from the suspending hole (15a).
[0024]
The suspension arm (6) is adapted to rotate at the pivot part (16), but the stopper (6a) has a fan shape centered on the pivot part (16). If the suspension arm (6) rotates, the stopper (6a) is positioned directly above the protruding pin (9) so that the inner shaft (4) does not come off. Note that the suspension device (1) of the present embodiment is such that the fan portion of the stopper (6a) does not move even if the angle (θ) with respect to the central axis of the insertion shaft (3) of the suspension arm (6) is inclined to 30 °. There is no separation from directly above the protruding pin (9).
[0025]
In this manner, when the building is transported to a predetermined place, the operation moves to the removal of the suspension arm (6). When the hook (21) of the crane (22) is removed from the rope (23) that is stretched between the suspension arms (6), the suspension arm (6) rotates at the pivoting portion (16) and stops (6a ) Is released from directly above the protruding pin (9). Therefore, in this state, there is nothing to prevent the movement of the protruding pin (9) in the removal direction, so when the handle ring (5) is pulled, the inner shaft (4) moves in the removal direction. (7) is accommodated in the insertion shaft (3), and the insertion shaft (3) can be detached from the suspension hole (15a).
[0026]
【The invention's effect】
Since the suspension device of the present invention has a lock mechanism, an insertion shaft is inserted into a suspension hole drilled in the building member, the building member is locked by the locking portion, and then the building member is lifted to lift the crane. Even when an external force is applied to a building member due to some contact accident during transportation or assembly by the above, the suspension device of the present invention does not come off the suspension hole.
[Brief description of the drawings]
FIG. 1 is a front view showing a state in which a locking part is housed in an insertion shaft in the hanging device of the present invention. FIG. 2 is a side view of FIG. FIG. 4 is a side view of FIG. 3. FIG. 5 is a central sectional view of FIG. 1. FIG. 6 is a central sectional view of FIG. 8 is a central sectional view of FIG. 4. FIG. 9 is a perspective view when the hanging device of the present invention is inserted. FIG. 10 is a perspective view after insertion of the hanging device of the present invention. FIG. 12 is a front view of a conventional suspension device. FIG. 13 is a side view of a conventional suspension device.
(1) Suspension device
(3) Insertion shaft
(4) Inner shaft
(6) Suspension arm
(6a) Stopper
(7) Locking part
(9) Protruding pin
(10a) Long guide groove
(10b) Short guide groove
(15) Building materials
(15a) Suspension hole

Claims (2)

(a) an insertion shaft that is inserted into a suspension hole drilled in a building member, and a bifurcated pivot arm is formed at the suspended end;
(b) a suspension arm for mounting the transfer device pivotably attached to the pivot arm, and
(c) an inner shaft that is slidably inserted in the axial direction from the suspension side end of the insertion shaft;
(d) a locking portion that protrudes / immerses in / out of the insertion shaft from the side surface of the insertion shaft in conjunction with the axial reciprocation of the inner shaft;
(e) a protruding pin provided at the suspended end of the inner shaft;
(f) A suspension device characterized in that the suspension device is formed by a fan-shaped stopper centered on a pivotal portion that is formed at the free end of the suspension arm and engages with the protruding pin in the standing state of the suspension arm. . (a) A long guide groove and a short guide groove are formed so as to face each other on the side surface of the insertion side end inserted through a suspension hole drilled in the building member, and a bifurcated pivot arm is formed at the other end. A cylindrical insertion shaft formed;
(b) a suspension arm for mounting the transfer device pivotably attached to the pivot arm, and
(c) an inner shaft inserted through the insertion shaft so as to be slidable in the axial direction of the insertion shaft from the suspension side end of the insertion shaft;
(d) pivotally attached to the insertion side end of the inner shaft so that it can be tilted up and down, and protrudes out of the insertion shaft from the long guide groove and the short guide groove when the inner shaft is pushed toward the insertion side end,
A locking portion in which the protruding portion engages with the short guide groove when the inner shaft is pulled out in the direction opposite to the insertion side end, and the protruding portion is pulled into the insertion shaft;
(e) a projecting pin projecting from the end of the inner shaft on the side of the pivot arm;
(f) It is formed of a fan-shaped stopper centered on a pivoting portion that is formed at the suspension side end of the suspension arm and engages with the protruding pin in the standing state of the suspension arm. Hanging device.

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