JP2001253680A - Suspending device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a suspending device causing no accident such as a drop of a building member during conveyance by a crane or in assembly. SOLUTION: This suspending device is constructed of an insertion shaft 3 passed through a hanging hole 15a in the building member 15 and provided with a fork end pivot arm 12 formed in the suspension side end part, a hanging arm 6 pivoted to the pivot arm 12, an inner shaft 4 inserted into the insertion shaft 3 slidably, a locking part 7 projected/retracted to the outward/inward of the insertion shaft 3 from the side face of the insertion shaft 3 interlockingly with axial reciprocation of the inner shaft 4, a projection pin 9 arranged on the suspension side end part of the inner shaft 4, and a stopper 6a engaged with the projection pin 9 in a standing state of the hanging arm 6.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a suspension device inserted into a suspension hole formed in a building member.

[0002]

2. Description of the Related Art When constructing buildings, it is necessary to transport and assemble building members such as roofs, floors, and wall materials, and most of the work largely depends on cranes. As a method of transporting a building member as described above by a crane, a hanging device is used in a hanging hole previously drilled in the building member.
After inserting (31) and confirming that the suspending device (31) does not come off by hanging the building member, the building member is lifted and transported by the crane via the suspending device (31). There is something.

[0003] The structure of the conventional suspension device (31) has an inner shaft (3).
4) The insertion shaft (33) having a through hole (33a) in which the shaft can be slidably accommodated in the axial direction, and a guide groove (39) formed at the insertion side end of the insertion shaft (33). A locking portion (37) pivotally mounted on the mounting shaft (40) so as to be freely tilted and provided slidably inside the insertion shaft (33), and the locking portion (37) is provided via a link (41). ), And an inner shaft (34) which is constantly urged in a pull-out direction by a spring (38), and a suspending arm (36) disposed at a suspended end of the insertion shaft (33). It is composed of

[0004] Next, a brief description will be given of the access mechanism of the locking portion (37) of this conventional example. When the operation lever (35) provided at the upper end of the inner shaft (34) is pressed by a finger against the elastic 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 so as to fit in the guide groove (39) of the insertion shaft (33).

Conversely, when the finger is released from the operating lever (35), the inner shaft (34) moves toward the spring (32) by the action of the spring (32).
The locking portion (37) is pulled up by the inner shaft (34) via the link (41) and projects out of the insertion shaft (33).

When the hanging device (31) having such a mechanism is inserted into a hanging hole formed in a building member, an operating lever is required.
(35) is pushed down to put the locking part (37) in the insertion shaft (33), and in this state, the insertion side part (31a) of the suspension device (31) is inserted into the suspension hole, Release the lever (35). Then, the operating lever (35) is pushed up by the spring force of the spring (32),
The locking portion (37) protrudes out of the insertion shaft (33) again, and the locking portion (37) is engaged with the hole edge of the suspension hole. As above,
By inserting the suspension device (31) into the suspension hole and supporting the building member with the locking portion (37), the preparation for lifting is completed.

Next, when the suspension device (31) attached to the building member is lifted and transported by a crane, another building member may touch the operation lever (35) during transportation or assembly. At this time, the operating lever (35) is pushed and the spring
When the (32) bends, the locking portion (37) rotates and fits inside the insertion shaft (33), and the locking member (37) is disengaged from the hole edge of the hanging hole and the building member is transported during transportation. It can fall, which is very dangerous for workers.

[0008]

The problem to be solved by the present invention is as follows.
An object of the present invention is to develop a suspension device that does not cause accidents such as falling off of building members during transportation or assembly by a crane.

[0009]

According to the first aspect of the present invention, there is provided a suspension device (1) comprising: (a) a suspension hole formed in a building member (15);
An insertion shaft (3) inserted through (15a) and having a forked pivot arm (12) formed at a suspended end thereof, and (b) a pivot arm (12)
Arm for mounting the transfer device, which is pivotally attached to the table
(6), (c) the inner shaft (4) slidably inserted through the insertion shaft (3) in the axial direction, and (d) the insertion shaft in conjunction with the axial reciprocation of the inner shaft (4). (3) a locking part (7) projecting and retracting from the side of the insertion shaft (3) into and out of the insertion shaft (3), and (e) a protruding pin (9) provided at the hanging end of the inner shaft (4). (F) a stopper (6a) formed at a free end of the suspension arm (6) and engaged with the protruding pin (9) when the suspension arm (6) is in an upright state. I do.

[0010] Claim 2 is a further embodiment of Claim 1, wherein (a) a hanging hole (15a) formed in a building member (15).
A long guide groove (10a) and a short guide groove (10b) are formed so as to oppose each other on the side surface of the insertion side end portion that is inserted into, and a bifurcated pivot arm (12) is formed at the other end. Cylindrical insertion shaft
(3), (b) Suspended arm (6) for mounting the transfer device pivotally attached to the pivotable arm (12), and (c) Slidable in the axial direction of the insertion shaft (3) Inner shaft (4) inserted through insertion shaft (3) at
(D) pivotally attached to the insertion end of the inner shaft (4) so that it can be turned upside down,
When the inner shaft (4) is pushed toward the insertion end, the inner shaft (4) projects out of the insertion shaft (3) from the long guide groove (10a) and the short guide groove (10b), and the inner shaft (4) When pulled out in the opposite direction, the projecting portion (7a) engages with the short guide groove (10b) and the projecting portion (7a) is pulled into the insertion shaft (3).
(E) a protruding pin (9) protruding from the pivot arm end of the inner shaft (4), and (f) a suspension pin (6) formed at the suspension end of the suspension arm (6). When the arm (6) is standing, the projecting pin
(9) and a stopper (6a) to be engaged.

In the suspension device (1) of the present invention, the engaging portion (7) is provided with the guide groove (7) in conjunction with the axial reciprocation of the inner shaft (4) disposed in the insertion shaft (3). 10a) (10b) project outside the insertion shaft (3) or, conversely, fit inside the insertion shaft (3), so the projecting locking part (7) supports the building member (15) And can be lifted and transported by a crane.
The hanging device (1) can be detached from the building member (15) by storing the device in the insertion shaft (3).

In addition to this, the hanging device (1) has, as important features, a protruding pin (9) formed on the hanging end of the inner shaft (4), and a hanging arm (6). ) And a stopper (6a) formed at the free end. That is, the suspension arm
When (6) is lifted by the transfer device, the stopper (6
(a) is located directly above the protruding pin (9), and even if the inner shaft (4) tries to come off to the suspension end due to any contact during transfer, the stopper (6a) becomes an obstacle and the protruding pin (9) Cannot be pulled out toward the suspension end. Therefore, no matter what force is applied during transportation, as long as the protruding pin (9) is engaged with the stopper (6a), the suspension device (1) can be used for other building members (15) during transportation or assembly. Hanging device (1)
The building member (15) does not fall off from the hanging hole (15a).

A third aspect of the present invention is that the stopper (6a) of the suspension device (1) according to the first aspect is limited, and the stopper (6a) is formed in a fan shape. I do.

In this way, even if an external force is applied to the building member (15) during transportation of the building member (15), and the suspension arm (6) swings with respect to the insertion shaft (3), or even if the suspension arm arm
Insert shaft attached to building member (15) for (6)
Even if (3) swings, since the stopper (6a) is formed in a fan shape, the stopper (6a) together with the suspension arm (6)
Even if is rotated about the pivoted part (16), any part of the arc of the stopper (6a) is located directly above the protruding pin (9), and the protruding pin (9) comes off the stopper (6a). Can be prevented.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described with reference to the illustrated embodiments. The suspension device (1) of FIG. 1 includes an insertion shaft (3), an inner shaft (4) disposed inside the insertion shaft (3), and a lower end of the inner shaft (4). Locking portion (7), a cylindrical portion (8) integrally formed on the upper end portion of the inner shaft (4), and a protrusion projecting at right angles to a central axis on a side surface of the cylindrical portion (8). A pin (9) and a handle ring (5) disposed at an end of the inner shaft (4) on the column (8) side.
And a lifting arm (6) for hooking a crane when lifted.

The cross-sectional shape of the insertion shaft (3) is hollow and circular, and two long and short guide grooves (10a) extend in the axial direction of the insertion shaft (3).
(10b) are formed facing each other. An inner shaft (4) is accommodated inside the insertion shaft (3) so as to be able to reciprocate in the axial direction, and a rotation stopper projection (11) formed 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 least the inner shaft (4) moves in the withdrawal direction at the upper end position,
The locking portion (7) rotates around the pivot shaft (17) and its protruding portion
(7a) is stored in the guide groove (10a) (10b) of the insertion shaft (3),
It is formed so that the position when the rotation stop projection (11) has risen to the highest point can be covered.

On the other hand, the length of the short guide groove (10b) is such that the projecting portion (7a) of the locking portion (7) is a pair of long and short guide grooves of the insertion shaft (3).
(10a) When the inner shaft (4) moves in the withdrawal direction while projecting from the (10b), one protruding portion (7a) abuts the short guide groove (10b) during the movement, and the pivot shaft ( It moves in the withdrawal direction while rotating around (17), and finally its protruding part (7a)
Are formed so as to be accommodated in a pair of long and short guide grooves (10a) (10b) of the insertion shaft (3). (FIG. 5) A locking portion (7) is provided in a split groove (18) formed at the insertion end of the inner shaft (4), and can be turned upside down by a pivot shaft (17). It is held in such a size that the entire locking portion (7) is housed when the locking portion (7) stands up in the axial direction. Although there is no particular limitation on the shape of the locking portion (7), in the present embodiment, a trapezoid in which the two oblique sides where the lower surface on the insertion side of the protruding portion (7a) is inclined is substantially equal and has a long and short guide grooves (10a) ) Respectively.

A stopper pin is provided at the lower end of the insertion shaft (3).
(19) is extended so that the protruding portion (7a) on the insertion end side of the locking portion (7) housed in the split groove (18) comes into contact. (20) is a closing member for closing the insertion end of the insertion shaft (3).

A cylindrical portion (8) thicker than the inner shaft (4) is formed continuously and integrally at the hanging end of the inner shaft (4).
And has a role of a stopper for the inner shaft (4) in contact with the suspension side end of the inner shaft. In addition, the ring mounting part (8
A handle ring (5) for moving the inner shaft (4) in the pulling-out direction is attached to a). A projecting pin (9) is press-fitted into the column portion (8) at right angles to the central axis, and projects from the side surfaces thereof at right angles in opposite directions.

A pivot arm (1) is attached to the hanging end of the insertion shaft (3).
2) is formed, and the suspension arm (6) is pivoted (1).
At the pivot point (16) with the bolt (13) and the nut (14)
Are rotatably coupled by Hanging arm (6)
A stopper (6a) is continuously and integrally formed at a free end beyond the pivot portion (16), and has a fan-like shape centered on the pivot portion (16). The central angle of the fan is not particularly limited, but if the angle is too small, the arm for suspension is used.
The stopper (6a) only needs a protruding pin
The projecting pin (9) is separated from the position immediately above (9).

On the other hand, if the angle is too large, the suspension arm
The protruding pin (9) is still a fan-shaped stopper even if (6) is greatly tilted.
(6a), and when the suspension device (1) is disengaged from the suspension hole (15a), the handle ring (5) is held and moved in the direction in which the inner shaft (4) is pulled out to engage the engagement portion ( This will be an obstacle to the operation of releasing the engagement of 7).

Next, the operation of the present invention will be described. First, as shown in FIG. 9, the handle ring (5) is held and the hanging 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
(3) is lowered by its own weight, the inner shaft (4) rises relatively, and the locking portion (7) is housed in the insertion shaft (3). (FIGS. 1 and 2) In this state, the insertion shaft (3) is inserted into the hanging hole (15a) formed in the building member (15).
Through.

Then, the pivot arm (1) at the upper end of the insertion shaft (3)
The handle ring (5) is released when the insertion shaft (3) is penetrated until the position (2) comes into contact with the building member (15). Then, this time the insertion axis
Since the pivot arm (12) of (3) is supported by the building member (15), only the inner shaft (4) descends due to its own weight, and with this descending, the inclination of the protruding portion (7a) on the insertion end side. The bottom surface is a stopper pin (1
9) and is forcibly rotated, and the protrusions (7a) (7a) on both sides of the locking portion (7) are inserted from the long and short guide grooves (10a) (10b) into the insertion shaft.
It protrudes out of (3) and engages with the penetrating side of the suspension hole (15a). Holding the handle ring (5) in this way, with the hanging device (1) inserted in the hanging hole (15a), and releasing the handle ring (5) automatically prepares the lifting device (1) for lifting. Is completed. (See FIG. 10) Subsequently, as shown in FIG. 11, when the hook (21) of the crane (22) is hung on the rope (23) stretched between the suspending arms (6) and lifted, (7) is building materials
(15) can be lifted up and transported to a predetermined place. At this time, the lifting arm (6) is
Because it is connected to (2), the stopper (6a) is located directly above the protruding pin (9) at the lowest point, and the suspension device (1) and the building member (15) are used for transportation and assembly. Colliding with the building components of
Even if the inner shaft (4) moves in the direction in which the inner shaft moves, the projecting pin (9) collides with the stopper (6a) immediately above, so that further movement in the direction of removal is hindered. Therefore, the suspending device (1) is connected to the suspending hole (1) while the engaging portion (7) remains protruding from the insertion shaft (3).
5a) will not leave.

The suspension arm (6) is adapted to rotate at the pivot portion (16), but the shape of the stopper (6a) is fan-shaped around the pivot portion (16). Therefore, even if the suspension arm (6) rotates within the arc of the fan, the stopper (6a) is located immediately above the protruding pin (9) and the inner shaft (4) does not come off. ing. Note that the suspension device (1) of the present embodiment is an insertion shaft of the suspension arm (6).
Even when the angle (θ) with respect to the central axis of (3) is inclined up to 30 °, the fan of the stopper (6a) does not separate from directly above the protruding pin (9).

When the building has been transported to a predetermined place in this manner, the operation for removing the suspension arm (6) is started. When the hook (21) of the crane (22) is removed from the rope (23) extending between the suspension arms (6), the suspension arm (6) rotates at the pivoted portion (16) and stops at the stopper (6a). ) Comes off from just above the protruding pin (9). Therefore, in this state, there is nothing to prevent the protrusion pin (9) from moving in the pull-out direction.
When (5) is pulled, the inner shaft (4) moves in the removal direction, and in conjunction with this, the locking portion (7) fits inside the insertion shaft (3), and the insertion shaft (3) moves from the hanging hole (15a). Can be removed.

[0026]

Since the suspension device of the present invention has a lock mechanism, the insertion shaft is inserted through the suspension hole formed in the building member, and the building member is locked by the locking portion. Even when an external force is applied to the building member due to some kind of accident while the member is being lifted and transported or assembled by the crane, the hanging device of the present invention does not fall out of the hanging hole.

[Brief description of the drawings]

FIG. 1 is a front view of a suspension device according to the present invention in which a locking portion is housed in an insertion shaft.

FIG. 2 is a side view of FIG. 1;

FIG. 3 is a front view of the suspension device of the present invention in a state where the locking portion is projected outside the insertion shaft.

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. 2;

FIG. 7 is a central sectional view of FIG. 3;

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 the hanging device of the present invention is inserted.

FIG. 11 is a perspective view of the lifting device of the present invention when it is lifted.

FIG. 12 is a front view of a conventional hanging device.

FIG. 13 is a side view of a conventional hanging device.

[Explanation of symbols]

 (1) Suspension device (3) Insert 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) Hanging holes

Claims (3)

[Claims] (1) An insertion shaft having a bifurcated pivot arm formed at a suspension end thereof, which is inserted into a suspension hole formed in a building member, and (b) a pivot arm. (C) an inner shaft inserted slidably in the axial direction through the insertion shaft, and (d) an interlocking movement of the inner shaft in the axial direction. (E) a protruding pin provided on the suspension side end of the inner shaft, and (f) a free end of the suspension arm. And a stopper that engages with the protruding pin when the suspension arm is in an upright state. (A) A long guide groove and a short guide groove are formed on the side surface of an insertion end inserted into a suspension hole formed in a building member so as to face each other, and a bifurcated shape is formed at the other end. A cylindrical insertion shaft having a pivot arm formed therein, (b) a suspension arm for mounting a transfer device pivotally mounted on the pivot arm so as to be capable of being raised and lowered, and (c) a slide in the axial direction of the insertion shaft. And (d) a long guide groove and a short guide when the inner shaft is pushed in the direction toward the insertion end so that the inner shaft is freely pivoted to the insertion end of the inner shaft. A locking portion that protrudes from the guide groove to the outside of the insertion shaft, the protruding portion engages with the short guide groove when the inner shaft is pulled out in a direction opposite to the insertion side end portion, and the protruding portion is drawn into the insertion shaft. (E) a protruding pin protruding from an end of the inner shaft on the pivot arm; and (f) a protruding pin formed on the hanging end of the suspending arm. Suspension device, characterized in that it is constituted by the said projecting pin engages to the stopper in. 3. The suspension device according to claim 1, wherein the stopper is formed in a sector shape.