JP2001106486A - Automatic elevating and lowering device for temporary member and automatic elevating method for temporary member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an automatic elevating / lowering device for a temporary member and an automatic elevating / lowering device for a temporary member capable of easily raising and lowering a temporary member (31) (41) along an outer side surface of a building with a simple structure. Provide a way. SOLUTION: A guide frame (2) and an elevating base (3) are
A screw shaft (16) rotatably engaged with a motor (14) is supported on one side so as to be freely rotatable along the vertical direction, and the other screw shaft (16) is screwed on the other side. Fix the nut (20) to be inserted. Temporary members (31) (41) for either the guide frame (2) or the elevating base (3)
And one of them is locked to the frame (10), and the other is raised and lowered by forward and reverse rotations of the motor (14), and this is alternately repeated, whereby the temporary members (31) (4)
1) is raised and lowered along the outer surface of the building. Screw shaft (1
Since a simple lifting mechanism using 6) and the nut (20) is used, the entire apparatus can be reduced in size and weight, and fine adjustment of the installation positions of the temporary members (31) and (41) is facilitated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a net support frame,
The present invention relates to an automatic elevating device and a method for elevating a temporary member such as a scaffolding support frame along an outer surface of a building, and particularly to a temporary member suitable for use in building a high-rise building. And a method for automatically moving a temporary member.

[0002]

2. Description of the Related Art When constructing a building or repairing an outer wall surface of an already constructed building, temporary members such as a net support frame and a scaffold support frame are attached along the outer surface of the building. Has formed. The net support frame is used to stretch the curing net.The outer surface of the building is covered with the curing net to prevent scattering of sparks and to cure the work place. By providing a work scaffold, the work on the outer surface of a building without a scaffold is facilitated.

Conventionally, these temporary members are temporarily provided along the outer surface of the building from the ground. However, a large amount of work is required at high places such as a high-rise building or a super-high-rise building. Since a support member is required, the temporary member is not provided temporarily from the ground, but is provided only along the outer side surface of the work place, and the method of moving the temporary member up and down according to the movement of the work place has been adopted.

For example, according to Japanese Patent Application Laid-Open No. 7-4063,
A guide rail for sliding the guide groove is provided by using the guide groove for the gondola for guidance, and a slide panel which can be lifted and lowered by a hanging rope is provided as a curing net with respect to this guide rail, and the curing net can be raised and lowered. And

In addition, a temporary member such as a net support frame on which a curing net is stretched is simply suspended by a tower crane and raised or lowered, or the temporary member is lifted using independent lifting means instead of the tower crane. It is also known to move it upward.

[0006]

However, the method of using a guide rail for guidance and lifting the curing net with a hanging rope uses a guide groove for a gondola in the outer wall curtain wall construction, so that the existing building is repaired. It is not suitable for work, and it is difficult to finely adjust the ascending / descending position with a hanging rope, and there is a problem that it takes time and effort to elevate and lower the curing net.

In the method of suspending the temporary member with a tower crane, the temporary member can be easily moved up and down, but the tower crane cannot be used for other work while the temporary member is being installed.
Also, installing a tower crane on an existing high-rise building was inconvenient.

Further, in the method of moving the temporary member upward using independent lifting means such as a hydraulic jack,
As the construction work progressed, it was necessary to change the lifting means to the upper floor, which was a laborious operation. In particular, a large temporary member becomes a heavy structure, and a hydraulic jack is used as a lifting means.However, when finely adjusting the stop position of the temporary member, the temporary member is slightly lowered while reducing the oil pressure. Therefore, the operation is difficult, and the whole apparatus is expensive, such as providing a check valve.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and has a simple structure and can easily move a temporary member up and down along the outer surface of a building. And a method for automatically moving the temporary member up and down.

[0010]

In order to achieve the above object, an automatic elevating and lowering device for a temporary member according to the present invention has a first support arm portion which can be freely attached to and detached from a skeleton. A guide frame body having a vertically movable guide frame formed vertically along the outer side surface, and a second support arm portion which is detachable with respect to the skeleton; And a vertically movable slidable vertical base, and a screw shaft rotatably supported along the vertical direction on either the guide frame or the vertical base in conjunction with forward and reverse rotation of the motor. And a nut into which the screw shaft is screwed and which is fixed to the other of the lifting base or the guide frame which does not support the screw shaft, and which locks the first support arm portion and the second support arm portion to the frame. Guides that are released alternately and are slidable up and down The body or elevating base, positive motor, is raised and lowered by the reverse rotation, characterized in that elevating the temporary member fixed to the guide frame or the lift base.

A screw shaft is rotatably supported on one of the guide frame and the elevating base along the vertical direction.
Since the nut screwed to the screw shaft is fixed to the other, one of the screws slides up and down relatively to the other by the forward or reverse rotation of the screw shaft.

When the screw shaft of the first support arm or the second support arm is released alternately and the screw shaft interlocked with the motor is rotated forward or backward, it can slide vertically. Since the guide frame body or the elevating base that has become ascending and descending, by repeating this alternately,
The whole of the guide frame and the elevating base move up and down with respect to the skeleton like a scale insect.

Since the temporary member is fixed to the guide frame or the elevating base, the temporary member moves up and down together with the guide frame or the elevating base.

The temporary member can be raised and lowered with respect to the frame by itself without using other equipment such as a tower crane even at a high place or a work place of an existing building.

Since the automatic elevating device uses an elevating mechanism in which a screw and a nut are only screwed together, the configuration is simple, and the size and weight can be reduced. As a result, a large-sized temporary member can be raised and lowered using a plurality of automatic lifting devices.

Also, since it is a lifting mechanism using screws and nuts, fine adjustments in the up and down directions can be easily made by rotating the motor forward and backward, and the installation position of the temporary member can be easily adjusted.

According to a second aspect of the present invention, there is provided an automatic elevating and lowering device for a temporary member, wherein the first and second supporting arms are detachable from a frame, and a vertically elevating guide frame is formed along an outer surface of the building. A guide frame, a second support arm portion that is detachable from the skeleton, and a vertically movable base vertically slidable with respect to the guide frame by engaging with the vertically movable guide frame;
A nut rotatably supported on either the guide frame or the elevating base in conjunction with the forward or reverse rotation of the motor, and either a lifting base or a guide frame that is screwed into the nut and does not support the nut. On the other hand, a guide provided with a screw shaft fixed along the vertical direction, wherein the first support arm portion and the second support arm portion are alternately released from being locked to the frame, and are slidable in the vertical direction. The frame body or the elevating base is raised and lowered by forward and reverse rotations of the motor, and the temporary member fixed to the guide frame or the elevating base is raised and lowered.

A nut is rotatably supported on one of the guide frame and the elevating base, and a screw shaft screwed to the nut is fixed on the other. Slide up and down relative to the other.

[0019] When the locking of either the first supporting arm or the second supporting arm to the frame is alternately released and the nut interlocked with the motor is rotated forward and backward, it is slidable up and down. The resulting guide frame or lifting base moves up and down, so by repeating this alternately,
The whole of the guide frame and the elevating base move up and down with respect to the skeleton like a scale insect.

Since the temporary member is fixed to the guide frame or the elevating base, it moves up and down together with the guide frame or the elevating base.

According to a third aspect of the present invention, there is provided an automatic lifting device for a temporary member, wherein the screw shaft is supported by the lifting base, and the temporary member is fixed to the guide frame.

The temporary member is fixed to the guide frame, and the screw shaft is supported by the elevating base. Therefore, when the elevating base is locked to the frame and the guide frame is moved up and down, the nut of the guide frame is raised. , The load of the temporary member acts on the screw shaft as a tensile load. Since this tensile load acts in the vertical direction, which is the axial direction of the screw shaft, even if a large load is applied by the temporary member, the screw shaft is kept in the vertical direction parallel to the lifting guide frame. Therefore, the screw shaft is not subjected to the compressive load by the temporary member, the screw shaft bends in a direction different from that of the lifting guide frame, and the sliding between the guide frame and the lifting base is not hindered.

[0023] According to a sixth aspect of the present invention, there is provided an automatic elevating and lowering device for a temporary member, wherein the elevating and lowering guide frame is formed vertically along the outer surface of the building.
A first stopper which is slidably guided along the elevating guide frame and has a first stopper which can be freely disengaged from the guide rail;
An elevating base, a second elevating base that is slidably guided along an elevating guide frame and has a second stopper that is detachably engageable with a guide rail, and a first elevating base that is interlocked with forward and reverse rotations of a motor. A screw shaft rotatably supported in the up-down direction, a nut into which the screw shaft is screwed, and a nut fixed to the second elevating base. The first stopper and the second stopper are locked to the guide rail. The first lifting / lowering base or the second lifting / lowering base, which is alternately released and slidable in the vertical direction, is raised / lowered by forward and reverse rotation of the motor, and the temporary member fixed to the first lifting / lowering base or the second lifting / lowering base is removed. It is characterized by being raised and lowered.

A screw shaft is rotatably supported on the first elevating base along the vertical direction, and a nut screwed to the screw shaft is fixed to the second elevating base. By the reverse rotation, the first lifting base and the second lifting base slide along the lifting guide frame of the guide rail so as to approach or separate from each other.

When the locking of one of the first stopper and the second stopper to the guide rail is alternately released and the screw shaft linked to the motor is rotated forward and backward,
The first lifting base or the second lifting base that is slidable in the vertical direction moves up and down. By repeating this alternately, the entire first lifting and lowering base and the second lifting and lowering base are moved in the vertical direction like a scale insect. Up and down along the guide frame.

Since the temporary member is fixed to the guide frame or the lifting base, it moves up and down together with the first lifting base or the second lifting base.

[0027] According to a seventh aspect of the present invention, there is provided an automatic elevating and lowering device for a temporary member, comprising:
A first stopper which is slidably guided along the elevating guide frame and has a first stopper which can be freely disengaged from the guide rail;
An elevating base, a second elevating base that is slidably guided along an elevating guide frame, and has a second stopper that is detachably engageable with the guide rail, and a second elevating base that is interlocked with forward and reverse rotations of the motor. And a screw shaft screwed into the nut and fixed to the first elevating base along the vertical direction. The first stopper and the second stopper are engaged with the guide rail. Are alternately released, and the first lifting / lowering base or the second lifting / lowering base, which is slidable in the vertical direction, is raised / lowered by forward and reverse rotation of a motor, and is a temporary member fixed to the first lifting / lowering base or the second lifting / lowering base. Is raised and lowered.

A screw shaft is fixed to the first elevating base along the vertical direction, and a nut screwed to the screw shaft is rotatably supported by the second elevating base. Accordingly, the first elevating base and the second elevating base slide along the elevating guide frame of the guide rail so as to approach or separate from each other.

When either one of the first stopper or the second stopper is alternately released from being engaged with the guide rail, and the nut interlocking with the motor is rotated forward and backward,
The first lifting base or the second lifting base that is slidable in the vertical direction moves up and down. By repeating this alternately, the entire first lifting and lowering base and the second lifting and lowering base are moved in the vertical direction like a scale insect. Up and down along the guide frame.

Since the temporary member is fixed to the guide frame or the elevating base, it moves up and down together with the first elevating base or the second elevating base.

According to an eighth aspect of the present invention, there is provided an automatic elevating and lowering device for a temporary member, wherein the screw shaft is supported by the first elevating base, and the temporary member is fixed to the second elevating base.

The temporary member is fixed to the second elevating base, and the screw shaft is supported by the first elevating base. Therefore, when the first elevating base is locked to the guide rail and the second elevating base is raised and lowered. The load of the temporary member acts as a tensile load on the screw shaft via the nut of the second lifting base. Since this tensile load acts in the vertical direction, which is the axial direction of the screw shaft, even if a large load is applied by the temporary member, the screw shaft is kept in the vertical direction parallel to the lifting guide frame. Therefore, the screw shaft does not receive the compressive load of the temporary member, and the screw shaft bends in a direction different from that of the elevating guide frame, so that the sliding of the first elevating base or the second elevating base with respect to the guide frame is not hindered.

In the eleventh aspect, there is provided a method for automatically moving a temporary member up and down.
(B) A guide frame having a vertically movable guide frame formed along the outer side surface of the building is fixed to the frame by locking the first support arm of the guide frame, and the guide frame is fixed to the vertical frame. A first step in which the lifting base that is engaged and slidable vertically with respect to the guide frame is unlocked between the second support arm portion of the lifting base and the skeleton to be vertically movable with respect to the skeleton; (B) A screw shaft rotatably and vertically supported on one of the guide frame and the lifting base, and a nut fixed to the other of the lifting base and the guide frame which do not support the screw shaft. A second step of rotating in conjunction with the motor in a state of being screwed into the motor, and (c) fixing the lifting base raised and lowered by rotation of the screw shaft to the frame by locking the second support arm portion. 3 steps, and (d) the guide frame is A fourth step of the vertically movable relative to the skeleton by solving the engagement between the arm portion and the frame, the rotating and reverse rotation of the (e) the screw shaft in conjunction with the motor (b) 5
And (f) a sixth step of fixing the guide frame, which has been raised and lowered by the reverse rotation of the screw shaft, to the frame by locking the first support arm portion, and the steps (a) to (f). Is repeated to move the temporary member fixed to either the guide frame or the elevating base up and down along the building.

A screw shaft is rotatably supported on one of the guide frame and the elevating base along the vertical direction.
Since the nut screwed to the screw shaft is fixed to the other, one of the screws slides up and down relatively to the other by the forward or reverse rotation of the screw shaft.

Since the guide frame or the elevating base, which is slidable in the vertical direction, moves up and down by the rotation of the screw shaft, the first to sixth steps are repeated.
The whole of the guide frame and the elevating base move up and down with respect to the skeleton like a worm.

Since the temporary member is fixed to the guide frame or the elevating base, it moves up and down together with the guide frame or the elevating base.

The temporary member can be moved up and down at a high place or at a work place of an existing building because it can be moved up and down by itself.

Further, since it is a lifting mechanism using a screw and a nut, fine adjustments in the vertical direction can be easily made by rotating the motor forward and backward, and the installation position of the temporary member can be easily adjusted.

According to a twelfth aspect of the present invention, there is provided a method for automatically moving a temporary member up and down.
(B) A guide frame having a vertically movable guide frame formed along the outer side surface of the building is fixed to the frame by locking the first support arm of the guide frame, and the guide frame is fixed to the vertical frame. A first step in which the lifting base that is engaged and slidable vertically with respect to the guide frame is unlocked between the second support arm portion of the lifting base and the skeleton to be vertically movable with respect to the skeleton; (B) A screw shaft, which is fixed upright on one of the guide frame and the lifting base, is rotatably supported by the other of the lifting base or the guide frame which does not support the screw shaft. With the nut screwed into
A second step of rotating the nut in conjunction with the motor,
(C) a third step of fixing the lifting base raised and lowered by rotation of the nut to the frame by locking the second support arm, and (d) connecting the guide frame to the first support arm and the frame. A fourth step in which the latch is released to allow vertical movement with respect to the frame, (E) a fifth step in which the nut is interlocked with the motor to rotate in reverse to the rotation in (B), and (F) a reverse rotation of the nut And fixing the guide frame body raised and lowered by the first support arm portion to the frame body by repeating the steps (a) to (f). The temporary member fixed to one of them is moved up and down along the building.

A screw shaft is fixed upright on one of the guide frame and the elevating base, and a nut screwed to the screw shaft is rotatably supported on the other. By forward or reverse rotation, one slides up and down relatively to the other.

Since the guide frame or the elevating base slidable in the up and down direction is raised and lowered by the rotation of the nut, the first to sixth steps are repeated.
The whole of the guide frame and the elevating base move up and down with respect to the skeleton like a worm.

Since the temporary member is fixed to the guide frame or the elevating base, it moves up and down together with the guide frame or the elevating base.

According to a fourth aspect of the present invention, there is provided an automatic elevating / lowering apparatus for a temporary member, wherein the temporary member is a net support frame which is disposed along an outer surface of the building and stretches a curing net. I do.

According to a thirteenth aspect of the present invention, the temporary member is disposed along an outer surface of the building.
It is a net support frame on which a curing net is stretched.

According to the fourth, ninth and thirteenth aspects of the present invention, the net supporting frame on which the curing net is stretched moves up and down with respect to the frame together with the guide frame or the elevating base to which the net supporting frame is fixed. Can be easily moved up and down at the work place.

According to a fifth aspect of the present invention, there is provided an automatic elevating / lowering apparatus for a temporary member, wherein the temporary member is a scaffold support frame provided along the outer surface of the building.

According to a fourteenth aspect of the present invention, the temporary member is a scaffold support frame provided along the outer surface of the building.

According to the fifth, tenth, and fourteenth aspects of the present invention, the scaffold support frame is moved up and down with respect to the frame together with the guide frame or the elevating base to which the scaffold support frame is fixed. The scaffold can be easily raised and lowered.

[0049]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will now be described with reference to FIGS. 1 to 6. FIG.

1 to 3 show the structure of the automatic elevating device 1. FIG. 1 is a partially omitted front view of the automatic elevating device 1, FIG. 2 is a side view of the same, and FIG. FIG. 2 is a plan view of the lifting device 1. In the first embodiment, a net support frame 31, which is a temporary member, is fixed to a part of the automatic elevating device 1,
FIG. 4 is a front view of the net support frame 31 to which the two automatic elevating devices 1 and 1 are fixed, and FIG. 5 is a plan view of the same. . FIG. 6 is an explanatory view showing a process of moving the net support frame 31 and the curing net 30 up and down by using the automatic lifting device 1.

As shown in these figures, as shown in FIG.
Is provided with a vertically elongated guide frame 2 and an elevating base 3 which is slidable up and down relative to the guide frame 2.

The guide frame 2 is disposed at a predetermined interval (for example, 1
A pair of elevating guide frames 4, 4 standing up and down with a distance of about 400 mm) are connected by horizontal members 5, 5,... At predetermined vertical and intermediate positions. This horizontal member 5
A nut 20 is fixed at the center of the horizontal member 5a connected to a substantially intermediate position.

The length of the lifting guide frame 4 determines the upper limit of the lifting pitch of the guide frame 2 as described later. In the present embodiment, as shown in FIG. The length is slightly longer than the height of the floor. The lifting guide frame 4 has a U-shaped concave section as a guide groove 6 with a U-shaped cross section, and a pair of lifting guide frames 4, 4.
Are supported in parallel so that the opening surfaces of the guide grooves 6 face inward.

A pair of outer frame supporting arms 7 serving as outriggers are connected to the side of the elevating guide frames 4. As shown in FIG. 3, the outer frame support arm 7 has a base end rotatably supported in a horizontal direction by a support shaft 8 a of a support frame 8 fixed to the elevating guide frame 4 and the horizontal member 5. It is rotatable at an angle of 90 degrees from a retracted position opened outward and parallel to the horizontal member 5 to a locking position orthogonal to the horizontal member 5 and protruding toward the frame 10.

The outer frame support arm 7 is mounted on an H-beam 10 serving as a skeleton at a position orthogonal to the horizontal member 5,
A pair of positioning frames 7a for vertically holding the side surface of the beam 10 are vertically provided on the lower surface on the distal end side of the outer frame support arm 7 so as to be engaged with the beam 10 without play. See FIG. 6).

The pair of outer frame support arms 7, 7 are provided at two positions above and below the guide frame 2, respectively.
The vertical interval is sufficiently longer than the height of the elevating base 3, and is three times the height of the first floor of the building, as shown in FIG.

The elevating base 3 comprises a pair of vertical frame members 11, 11 standing upright, and vertical frame members 11, 11 above and below the vertical frame members 11, 11.
The upper connecting member 12 and the lower connecting member 13 that connect the space therebetween are formed in a vertically-long rectangular frame shape with a horizontal width slidable between the lifting guide frames 4, 4.

The left and right vertical frame members 11 and 1 are so arranged that the lifting base 3 and the guide frame 2 slide smoothly in the up and down direction with respect to each other.
1, a driven roller 11a that rolls in contact with the inner surface of the guide groove 6 of the lifting guide frames 4, 4, and a guide roller 11b that rolls in contact with the side surface of the guide groove 6,
Four of each are rotatably mounted. As the rollers 11a and 11b roll in the guide groove 6, the lifting base 3 is engaged with the lifting guide frame 4 without coming off from the guide groove 6, and is slidable along the lifting guide frame 4. Become.

An electric motor 14 driven by a power supply (not shown) and a coupling part 15 are mounted on the upper connecting member 12, and a screw shaft 16 having an external thread cut from the coupling part 15 over its entire length is suspended and supported. . The coupling unit 15 has a built-in coupling and a speed reducer. The coupling unit 15 connects the output shaft of the electric motor 14 to the screw shaft 16 and reduces the forward and reverse rotations of the output shaft to reduce the screw shaft 16.
To communicate.

As shown in FIGS. 1 and 2, the screw shaft 16
The upper connecting member 12 and the nut 20 attached to the horizontal member 5a are inserted, and the lower end thereof is connected to the bearing 1 of the lower connecting member 13.
3a. A female screw screwed into the screw shaft 16 is engraved on the nut 20, and the nut 20 whose rotation is restricted by the forward and reverse rotation of the screw shaft 16 moves up and down with respect to the screw shaft 16. . Thus, when the electric motor 14 is rotated forward and backward, the guide frame 2 slides up and down with respect to the lifting base 3 in accordance with the rotation direction.

In order to prevent the guide frame 2 or the elevating base 3 from falling off, an auxiliary nut 20 'is rotatably accommodated in the case fixed to the horizontal member 5a. If the female screw of the nut 20 is broken due to abrasion or the like and the screw with the screw shaft 16 is released, the guide frame 2 or the lifting base 3 on the side not locked to the frame 10 may fall due to its own weight. There is a screw shaft 1 on the auxiliary nut 20 '
6 is screwed into the screw shaft 16
Even if the screw between the nut 20 and the screw shaft 16 is released, the guide frame 2 or the elevating base 3 is supported via the auxiliary nut 20 '.

The length of the screw shaft 16 determines the upper limit of the elevating pitch of the elevating base 3, and at least the elevating guide frame 4 is moved up and down within the elevating guide frame 4.
In this embodiment, the length is slightly longer than the height of the first floor of the building, as shown in FIG.

In this embodiment, the bearing 13
“a” is for preventing the lower end of the screw shaft 16 from laterally shifting, and does not receive the load applied to the screw shaft 16 by the bearing 13a. Therefore, the screw shaft 1 is connected via the nut 20.
6 is applied to the guide frame 2 side by the coupling 1
It acts on the screw shaft 16 between the nut 5 and the nut 20 as tension. For this reason, as described later, even when the heavy load net support frame 31 and the curing net 30 are loaded on the guide frame 2 side, only the vertical tensile load acts on the screw shaft 16 at all times. 16 is bent due to buckling etc. and nut 20
Will not be difficult to move up and down.

A pair of inner frame support arms 17 serving as outriggers are also provided inside the vertical frame member 11 on the lifting base 3 side. The configuration of the inner frame support arm 17 is substantially the same as the configuration of the outer frame support arm 7, and as shown in FIGS. 1 to 3, the support shaft of the support frame 18 whose base end is fixed to the vertical frame member 11. 18a is rotatably supported in the horizontal direction, and is rotatable at an angle of 90 degrees from a retracted position accommodated in the elevating base 3 to a locking position protruding toward the skeleton 10. I have.

The inner frame support arm 17 is also used for the inner frame support arm 1.
A pair of positioning frames 17a that sandwich the side surface of the beam 10 are vertically provided on the lower surface on the distal end side of the beam 7, and are mounted on the H-beam 10 serving as a skeleton, and are engaged with the beam 10 without play.

As shown in FIGS. 1 and 2, the pair of inner frame support arms 17, 17 are rotatably mounted at two positions above and below the vertical frame member 11, respectively. As shown in FIG. 6, the vertical interval is the height of the first floor of the building.

A net support frame 31 on which a curing net 30 is stretched is fixed to the guide frame 2 side of the thus-configured automatic elevating device 1. As shown in FIG. 4, the net support frame 31 joins single pipes vertically and horizontally so as to cover the outer surface of the building at the height of the third floor of the building with the curing net 30, and forms a horizontally long plate. It is surrounded by a box truss 31a and reinforced with a brace 31c extending diagonally. The curing net 30 is stretched so that the surface facing the building is the back surface so that there is no slack on the entire front surface side of the net support frame 31 so that sparks and the like are not scattered in a high-rise work place.

The net support frame 3 on which the curing net 30 is stretched
1 is a large-sized heavy structure even if it is a temporary member, so in the present embodiment, it is raised and lowered by using the two automatic lifting devices 1 described above. For fixing to the automatic elevating device 1, the guide frame receiving reinforcing truss 31b is fixed to the box trusses 31a above and below the net supporting frame 31, and the guide frame receiving reinforcing truss 31b is tightened by bolts to the automatic elevating device 1.
Is fixed. Further, a support frame receiving bracket 32 using an angle bracket plate is attached to the lower end of the elevating guide frame 4, and the net supporting frame 31 is supported by being brought into contact with the bottom surface of the guide frame receiving reinforcing truss 31b.

Next, a net support frame 31 on which the curing net 30 is stretched (hereinafter, in the description of FIG. 6,
Each step of lifting and lowering the curing net 30 by the automatic lifting and lowering device 1 will be described in the order of FIGS.

FIG. 6A shows a state in which the curing net 30 covers the outer surface of the work place of the building under construction, for example, from the 20th floor to the 22nd floor. The frame body 2 includes upper and lower outer frame support arms 7, 20.
Engaged with the floor beams _{10 20} and 23 floor beams _{10 23} are fixed to the building frame 10. Also, in the elevating base 3, the upper and lower inner frame support arms 17, 17 are provided with beams 10 ₂₁ and 22 on the 21st floor.
Locked to the floor of the beams _{10 22} are fixed to the building frame 10.

In this state, the curing net 30 is moved upward as the work place moves to the upper floor. When moving upward, retracted position within the lift base 3 to release the locking, the inner frame support arms 17, 17 of the inner frame support arms 17, 17 and the beam _{10 21} and the beam _{10 22} of the elevating base 3 To rotate. By this unlocking, the lifting base 3 is supported by the nut 20 without being restrained by the frame 10, and can be slid vertically with respect to the guide frame 2.

Next, the electric motors 14 of the two automatic lifting / lowering devices 1 are respectively rotated forward. Electric motor 14
The rotation of the output shaft is reduced by the coupling unit 15 and transmitted to the screw shaft 16, and the screw shaft 16 rotates while being screwed to the nut 20 fixed to the guide frame 2. Since the nut 20 is fixed to the frame 10 via the guide frame 2, the screw shaft 16 side, that is, the entire elevating base 3 is
It rises along the lifting guide frame 4 (FIG. 6B). Hereinafter, in the elevating operation of the elevating base 3 and the guide frame 2,
The rotation of the electric motors 14 of the two automatic elevating devices 1 is controlled synchronously so that they do not tilt during elevating.

[0073] Further, by raising the elevating base body 3, the upper and lower inner frame support arms 17, 17, 22 floor beams _{10 22} and 23
Is stopped at a position reaching the floor beams _{10 23.} This stop may be performed by manually controlling the rotation of the electric motor 14 while checking the ascending position, or may be automatically stopped by providing a limit switch on the guide frame 2 side.

At this stop position shown in FIG. 6C, the upper and lower inner frame support arms 17, 17 are rotated to the locking positions protruding toward the frame 10, and the beams 10 ₂₂ and 10
₂₃ , and the lifting base 3 is fixed to the frame 10.

[0075] Then, release the engagement between the outer frame support arms 7, 7 and the beam _{10 20} and the beam _{10 23} of the guide frame member 2, to rotate the outer frame support arms 7, 7 to the retracted position. By this unlocking, the guide frame 2 side can be slid up and down in a state of being suspended by the screw shaft 16 with respect to the elevating base 3 without being restrained by the frame 10.

Thereafter, the electric motors 14 of the two automatic lifting / lowering devices 1 are rotated in reverse. Since the screw shaft 16 that rotates in the opposite direction to the above is rotatably supported by the elevating base 3 fixed to the frame 10, the nut 20 side screwed with the screw shaft 16, that is, the guide frame 2, The groove 6 is guided by the guide roller 11b of the elevating base 3, and is vertically pulled up (FIG. 6D). As the guide frame 2 rises, the curing net 30 attached to the guide frame 2 also rises.

[0077] Further, to raise the guide frame member 2, the upper and lower outer frame support arms 7, 7, and stops at the position to reach the 21 floor beams _{10 21} and 24 floor beams _{10 24} (FIG. 6
(E)).

At this stop position, the upper and lower outer frame support arms 7, 7 are rotated to the locking positions where they project again toward the frame 10, and are locked to the beams 10 ₂₁ and 10 ₂₄ , respectively, to guide them. The frame 2 is fixed to the frame 10.

FIG. 6 in which the guide frame 2 is fixed to the frame 10
The state (f) is a state in which the automatic lifting / lowering device 1 and the curing net 30 have moved to the upper floor by one floor of the building, as is apparent from comparison with FIG. Thus, by repeating the steps (a) to (f), the curing net 30 can easily follow the work place as the work place moves to the upper floor.

By repeating the steps (f) to (a), which are the reverse of the steps described with reference to FIG. 6, the whole can be lowered. The step of raising and lowering these curing nets 30 includes:
It is not always necessary to start from (a) or (f), but may start from any state, for example, the state shown in (c).

When the positioning frames 17a, 7a interfere with the frame 10 in the above-described locking and unlocking operations of the inner frame support arms 17, 17 or the outer frame support arms 7, 7 with respect to the frame 10, Before the work, the lifting base 3 and the guide frame 2 are slightly raised with respect to the frame 10,
Inner frame support arms 17, 17 or outer frame support arms 7, 7
May be rotated to the locking position or the retracted position.

As shown in FIG. 6, when the floors of the building have the same pitch, the inner frame support arms 17, 17 are provided.
The guide frame 2 and the elevating base 3 can be fixed to the frame 10 on any floor by setting the vertical interval between the outer frame support arms 7 and 7 to be an integral multiple of the height of each floor.

On the other hand, when the height of each floor is different, the inner frame support arm 17 or the outer frame support arm 7 is locked to one beam 10 or the upper and lower inner frame support arms 17 are used.
Alternatively, the distance between the upper and lower outer frame support arms 7 is changed, and the outer frame support arms 7 are locked to the beams 10 on the upper and lower two floors. Also,
The inner frame support arm 17 or the outer frame support arm 7 may be locked by projecting a temporary bracket or the like from the frame so that the frame portions to be locked have the same pitch.

FIGS. 7 to 11 show an automatic elevating / lowering device 40 for temporary members according to a second embodiment of the present invention.
In this embodiment, the temporary member to be moved up and down by the automatic elevating device is changed from the net support frame 31 to the scaffold support frame 41.

FIG. 7 is a front view of a scaffold support frame 41 to which two automatic elevating devices 40 are fixed, FIG. 8 is a plan view of the same, and FIG. 9 is a side view of the same. FIG. 10 is a cross-sectional view of a main part showing an outrigger of the automatic elevating device 40,
FIG.

The structure and operation of the automatic elevating device 40 are almost the same as those of the automatic elevating device 1 according to the first embodiment.
The common portions are denoted by the same reference numerals, and only different configurations will be described.

The scaffolding support frame 41, which is a temporary member, is supported along the outer surface of the building at a height of about 5 floors of the building, and connects a plurality of building frames with a horizontal single pipe. A plurality of combined scaffolding units are continuously arranged in the horizontal and vertical directions to form a temporary structure in the shape of a rectangular parallelepiped plate. The brace 41a is laid over a diagonal line of each scaffolding unit, and the lower side thereof is a box truss. 41b. The scaffold support frame 41 according to the present embodiment
A structure in which zero scaffold units are connected in the horizontal direction is vertically stacked in seven stages, and a cloth frame 41c (see FIG. 8) serving as a scaffold is laid between the building frames of each unit.
Elevating stairs are installed between each step so that workers can move freely over a wide range. Although not shown, the scaffolding support frame 41 is provided with handrails or stair guards for preventing a worker from falling down at necessary places.

The scaffold support frame 41 to which all of these accessories are attached is raised and lowered by using two automatic lifting devices 40. As shown in the figure, the automatic elevating device 40 includes a cloth frame 41c that is laid over the scaffolding unit from the lowermost stage to the upper three stages.
And housed in a square pillar-shaped space formed by removing. To fix the scaffold support frame 41 to the automatic elevating device 40, the elevating guide frame 4 is connected to the horizontal pipe of the surrounding scaffolding unit by a connecting pipe (not shown), and the lower box truss 41b is reinforced with the guide frame receiving member. Truss 41
Then, the lifting guide frame 4 of the automatic lifting device 40 is fixed to the guide frame receiving reinforcement truss 41d. Further, similarly to the first embodiment, a support frame receiving bracket 42 using an angle bracket plate is attached to the lower end of the elevating guide frame 4, and is brought into contact with the bottom surface of the guide frame receiving reinforcing truss 41d to thereby provide the scaffold support frame 41. I support.

It should be noted that the scaffold support frame 41 to the automatic elevating device 40
7 may be fixed to both sides of the scaffold support frame 41 (or between adjacent scaffold support frames 41) using a connecting pipe, a support frame receiving bracket 42, or the like, as shown by a broken line in FIG.

When the frame is made of a steel material such as an H-section steel, the automatic lifting device 40 is locked to the outer frame supporting arms 7, 7 or the inner frame supporting arms 17, 7 used in the first embodiment. 1
7 may be used, but at a work site that requires a scaffold, there are many skeletons 50 in which concrete is cast, and it is not suitable for locking to such a stage.

Therefore, in the present embodiment, instead of the outer frame support arm 7 or the inner frame support arm 17, the lock plate 43 shown in FIGS.
Is used. The lock plate 43 supports the support arm 7,
17, the base end thereof is rotatably attached to the support shaft 8a of the support frame 8 provided on the guide frame 2 or the support shaft 18a of the support frame 18 provided on the elevating base 3. As shown in FIG. 10, it rotates at an angle of 90 degrees between the stop position and the locking position.

At the tip of the lock plate 43, an insertion hole is formed through which an anchor bolt 44, which is buried by projecting an upper part from a skeleton 50 in which concrete is cast, is inserted. After the insertion, the nut is fastened to lock the frame 50. The lock plate 43 is formed with a flange that stands vertically on both wings so as not to bend under the load of the scaffold support frame 41.

The lifting and lowering of the scaffolding support frame 41 by the automatic lifting and lowering device 40 thus configured is the same as the lifting and lowering method described with reference to FIG. 6 in the above-described embodiment, and a description thereof will be omitted.

The elevating and lowering of the temporary members by the automatic elevating devices 1 and 40 is not limited to two automatic elevating devices, but one or a large number of automatic elevating devices 4 according to the total weight of the temporary members.
0 may be used.

The means for engaging and disengaging the guide frame 2 and the elevating base 3 with respect to the skeleton is not limited to the above-described example, and various engaging and disengaging means may be used according to the shape and structure of the skeleton. For example, FIGS. 12 and 13 show the guide frame 2
Alternatively, this shows another example in which a slide plate 45 that slides horizontally with respect to the elevating base 3 is used as an outrigger. When the slide plate 45 is locked to the skeleton 50, the slide plate 45 is slid toward the skeleton 50, Frame 50
The anchor bolt 44 with the lower part embedded in the U-shaped groove 45
a, and the nut is fastened. A lock pin 45b is inserted into the slide plate 45 that has been slid to the frame 50 to prevent the lock plate 45 from being retracted toward the automatic elevating device so that the lock is not accidentally released.

When the frame is a balcony 60, a locking plate 47 for inserting the clamping bolts 46, 46 is used as shown in FIG. The locking plate 47 is, like the lock plate 43 described above, a support shaft 8a of the support frame 8 provided on the guide frame 2 or a support shaft 18 of the support frame 18 provided on the lifting base 3.
The base end is rotatably attached to a so that it can rotate at an angle of 90 degrees between the stop position and the locking position.

When locking to the balcony 60, the locking plate 47 is rotated and inserted between the rising portion 60a and the handrail 60b of the balcony 60, and the rising portion 60a is clamped by the clamping bolts 46,46. Then, it is locked to the balcony 60. At the time of this locking, the holding bolts 46,
When a gap is formed between the rising portion 46a or the locking plate 47 and the rising portion 60a due to the shape thereof, the locking is performed without a shape by using a predetermined spacer 48.

In the above-described embodiment, the screw shaft 16 is rotatably supported on the lifting base 3 side. However, the screw shaft 16 is rotatably supported on the guide frame 2 and the nut is mounted on the lifting base 3. 20 may be fixed.

The lifting mechanism by screwing the screw shaft and the nut may be such that the screw shaft is fixed and the rotatably supported nut is rotated forward and reverse by a motor to raise and lower. .

FIGS. 15 to 21 show an automatic elevating / lowering device 70 for a temporary member according to a third embodiment of the present invention, showing an example of an embodiment in which the temporary member is raised and lowered by forward and reverse rotation of a nut side. Things.

FIG. 15 shows two automatic elevating devices 70, 70
Is a front view of the scaffold support frame 41 using FIG. 16, FIG. 16 is a plan view of the same main part, and FIG. 17 is a longitudinal sectional view of FIG. FIG.
8 is a front view of a main part of the automatic elevating device 70, FIG. 19 is a partial sectional view showing a coupling mechanism of the nut 82 and the electric motor 83, FIG. 20 is a longitudinal sectional view showing the configuration of the positioning mechanism 74, and FIG. , FIG. 22 is a side view showing an engaging / disengaging means for the skeleton.

In the present embodiment, the same reference numerals are given to components having the same or similar functions as those of the above-described embodiment, and description thereof will be omitted.

As shown in FIG. 15, in this embodiment, the scaffold support frame 41 is moved up and down by two automatic elevating devices 70, 70. Scaffolding support frame 4 on bracket 75
1 is moved up and down along with the elevating guide frame 78 of the guide rail 73 together with the elevating base 72.

The guide rail 73 raises four L-shaped steel members 73a so that the L-shape faces each other.
At a plurality of points between the horizontal connecting plate 76 and the locking bracket 77
(See FIG. 21), and the L-shape at the four corners is opposed to each other to form an elevating guide frame 78 having a rectangular cross section.

As shown in FIG. 17, the guide rail 73
Is perpendicular to the ground G along the outer surface of the frame 80 under construction.
And is connected to the frame 80 at a plurality of positions by rail support arms 79 shown in FIG. 22, and is vertically supported.

As shown in the figure, the rail support arm 79 is mounted on an upper pin 89a of a support frame 89 fixed in parallel with the guide rail 73, above the forked hinge plates 90a, 90b of the rail support arm 79. 90a is rotatably mounted so as to rotate up and down about the upper pin 89a. When not locked to the frame 80, the rail support arm 79 is pivoted upward as shown by a broken line in the figure to retract from the frame 80, and when locked to the frame 80, as shown by a solid line. The lower pin 89b is inserted horizontally into the other hinge plate 90b to restrict its rotation.

Arm receiving brackets 91 are fixed to the wall surface of the frame 80 facing the guide rail 73 at appropriate intervals in the vertical direction (for example, in accordance with the pitch of each floor of the building). The arm receiving bracket 91 supports the distal end side of a horizontally fixed rail supporting arm 79. The supported rail supporting arm 79 is inserted into a connecting bolt 92 at the distal end thereof, so that the arm receiving bracket 91 is attached to the arm receiving bracket 91. Detain. As a result, the guide rail 73
It is fixed to the frame 80 via the rail support arm 79 without rattling. After the erection work is completed, the arm receiving bracket 91 is removed.

In the first and second embodiments, when the frames 50, 60 in which concrete is cast are young concrete immediately after casting, the automatic lifting devices 1, 40 are used.
However, in the present embodiment, the main part of the automatic elevating device 70 and the temporary member are supported by the guide rail 73 placed on the ground G. Therefore, the temporary member can be safely moved up and down with respect to the skeleton 80 where concrete has just been cast. Therefore, here, the rail support arm 79 mainly functions to vertically support the guide rail 73, but the frame 80 has sufficient strength to secure the automatic elevating device 70 and the temporary member alone. The guide rail 7 with respect to the skeleton 80 using only the rail support arm 79.
Alternatively, the guide rail 73 may be self-standing only on the ground G without relying on the rail support arm 79.

As described above, since the rail support arm 79 acts as a means for engaging and disengaging with the frame 80, the rail support arm 79 is rotated in the vertical direction in place of the outer frame support arm 7 or the inner frame support arm 17 in the above-described embodiment. The rail support arm 79 may be used as a disengaging means.

Along with the elevating guide frame 78 of the erecting guide rail 73, the elevating head 71 serving as the first elevating base is provided.
Then, the lifting base 72 as the second lifting base is slidably guided. That is, the lifting head 71 and the lifting base 7
2, a plurality of sets of guide rollers 71a,
72a is rotatably mounted on the guide roller 71a.
a and 72a are rolled on the inner wall surface of the lifting guide frame 78,
The lifting head 71 and the lifting base 72 are slidable up and down along a lifting guide frame 78.

As shown in FIG. 18, the upper end of the screw shaft 81 is fixed to the center of the lower frame of the elevating head 71,
A nut 82 screwed to a screw shaft 81 suspended along the center of 8 is rotatably supported on the lifting base 72 side. The upper end of the screw shaft 81 is fixed to the lifting head 71 and does not rotate. Therefore, by rotating the nut 82 on the lifting base 72 forward and backward, the lifting head 71 and the lifting base 72 approach, Or leave.

FIG. 19 shows an interlocking mechanism that rotatably supports the nut 82 on the elevating base 72 and interlocks it with an electric motor 83 driven by a power supply (not shown).
Nut 8 in the gear case 84 attached to the upper frame 2
2 and an electric motor 83 are accommodated.

The nut 82 is rotatably supported between a pair of upper and lower bevel gears 85, 85 meshing with an internal gear in a gear case 84, and a screw shaft 81 vertically penetrating the gear case 84 is screwed therein. are doing. Further, on the outer peripheral surface of the nut 82, teeth meshing with a spur gear fixed to the output shaft 83a of the electric motor 83 are engraved, and the nut 82 rotates forward and reverse in conjunction with the electric motor 83 driven by a power supply (not shown). It is supposed to.

In the gear case 84, as in the first embodiment, the lifting head 71 or the lifting base 72 is provided.
Auxiliary nut 82 'for accommodating drop-off of the nut is accommodated. The auxiliary nut 82 ′ is also rotatably supported between a pair of upper and lower bevel gears 85 ′, 85 ′ meshing with the internal gear in the gear case 84, and the screw shaft 81 is screwed therein. Even if the female screw of the nut 82 is broken due to wear or the like and the screw with the screw shaft 81 is released, the auxiliary nut 82 'and the screw shaft 81 are screwed together. The lifting head 71 or the lifting base 72 on the side not locked to 77 is supported.

The elevating head 71 and the elevating base 72 slid up and down along the elevating guide frame 78 are provided with positioning mechanisms 86 and 74 for positioning the guide rail 73 at the sliding position. Since the positioning mechanism 74 and the positioning mechanism 86 have the same configuration,
Positioning mechanism 74 for lifting base 72 shown in FIGS.
And the description of the positioning mechanism 86 on the elevation head 71 side is omitted.

As shown in these figures, the positioning mechanism 7
4 includes a pair of symmetrically provided feed plates 87 corresponding to stoppers, and solenoids 88 connected to the feed plates 87 by plungers 88a.

The feed plate 87 has a side surface formed into a right-angled triangle, and has a window hole 72 b formed in a frame of the lifting base 72.
It is swingably supported in the interior. A forward end of a plunger 88a is rotatably connected to the back side of the feed plate 87, and a weight 87a that keeps the bottom surface of the feed plate 87 horizontal without any external force is fixed below the plunger 88a. I have.

The solenoid 88 is attached to the elevating base 72. When a control current (not shown) is supplied to the solenoid 88, the solenoid 88 operates to draw the plunger 88a.
As a result, the feed plate 87 is urged by the weight 87a to a locking position indicated by a two-dot chain line in FIG.
When a control current is supplied to the control line 8 in FIG.
1 (shown on the right side of FIG. 1) by a plunger 88a.

At the locking position, the feed plate 87 protrudes above the crossing locking bracket 77, and the rotation outward from the locking position is regulated by the connecting plunger 88a. A plurality of locking brackets 77 are attached at equal intervals along the vertical direction of the guide rail 73. Therefore, when the feed plate 87 is projected to the locking position on the locking bracket 77 at the position where the lifting base 72 is raised and lowered. The feed plate 87 is locked by the locking bracket 77,
Is positioned.

Next, a process of moving the scaffolding support frame 41 up and down by using the thus configured automatic elevating device 70 will be described.

To raise the scaffold support frame 41, the electric motor 83 is rotated forward and the nut 82 is rotated in the reverse direction with the respective feed plates of the lifting head 71 and the lifting base 72 protruding to the locking position. Let it. The reverse rotation of the nut 82 causes the lifting head 71 and the lifting base 72 to move away from each other, but since the feed plate 87 on the lifting base 72 side is locked by the locking bracket 77, the lifting head 71 is It rises along the frame 78. At the time of this ascent, the feed plate on the side of the elevating head 71 is pulled in to the rear side by the triangular oblique side abutting on the locking bracket 77 and gets over the locking bracket 77.

When the electric motor 83 is rotated in the reverse direction after the elevating head 71 is raised to a predetermined position, the nut 82
Rotates forward and acts to bring the lifting head 71 and the lifting base 72 closer to each other. At this time, since the feed plate on the side of the lift head 71 protrudes to the locking position by the weight, it is locked on the locking bracket 77 below it, and the lift head 7
1 is regulated. Therefore, the electric motor 83
Is continuously rotated in the reverse direction, the lifting base 72 and the lifting base 7
The scaffolding support frame 41 placed on 2 is raised along the elevating guide frame 78. At the time of this ascending, the feed plate 87 on the lifting base 72 side is retracted to the rear side by the triangular oblique side abutting on the locking bracket 77 and gets over the locking bracket 77.

When the electric motor 83 is rotated forward again, it acts to separate the lifting head 71 from the lifting base 72, and the lifting base 7 projecting to the locking position by the weight 87a.
The second feed plate 87 is connected to the lower locking bracket 7.
7 and the lowering of the elevating base 72 is restricted. As a result, the lifting head 71 rises, and this is repeated, and the scaffold support frame 41 is raised to a predetermined height.

On the other hand, when lowering the scaffold support frame 41, the electric motor 83 is rotated forward and the lifting head 71 is rotated.
Then, the solenoid on the lift head 71 side is energized to draw the feed plate to the release position.

Subsequently, the electric motor 83 is rotated in the reverse direction,
After lowering the lifting head 71 to a predetermined position, when the power supply to the solenoid on the side of the lifting head 71 is cut off, the feed plate protrudes to the locking position, and the lower locking bracket 7
Lock to 7. Further, when the electric motor 83 is continuously rotated in the reverse direction, the elevating base 72 rises, and at that position, the rotation of the electric motor 83 is stopped, and the solenoid 8 on the elevating base 72 side is rotated.
8, the feed plate 87 is drawn into the release position.

Subsequently, the electric motor 83 is rotated forward to lower the elevating base 72 to a predetermined position, and then the power supply to the solenoid 88 is cut off.
Is locked to the locking bracket 77 below it. As a result, the lifting head 71 rises, and this is repeated to lower the scaffold support frame 41 to a predetermined height.

As described above, at least the locking bracket 7
7 can be moved up and down simply by repeating the movement of the elevating head 71 and the elevating base 72 at intervals equal to or greater than the mounting pitch of the mounting bracket 7. It is sufficient if the length exceeds the mounting pitch. Therefore, the entire automatic elevating device 70 can be configured to be small and lightweight.

The lifting guide frame 78 is mounted on the guide rail 7.
3 can be extended by adding them, so that the temporary member can be moved up and down to an arbitrary height along the wall surface of the frame 80.

In this embodiment, the elevating head 71 and the guide rail 73 are integrally fixed, and the elevating base 7 is fixed.
If a base support arm (not shown) having the same configuration as the rail support arm 79 is provided on the second side, the screw shaft is fixed to the automatic elevating device 1 according to the first embodiment, and the nut is connected to the motor. Thus, the automatic elevating device is rotated forward and backward. That is, the integrated lifting head 71 and guide rail 73
Is attached to the guide frame 2 of the automatic elevating device 1
However, a rail support arm 79 corresponds to the outer frame support arm 7 and a base support arm corresponds to the inner frame support arm 17, respectively.
By automatically engaging and disengaging with respect to 0, an automatic elevating device that moves up and down with respect to the skeleton 80 is obtained. In this case, the positioning mechanisms 74 and 86 are not used.

In the above embodiment, the temporary member is moved up and down along one side of the building. However, the combination of the automatic lifting device and the temporary member, which are similarly configured, is used to construct the building. A plurality of side surfaces or the entire circumference may be surrounded by temporary members such as a net support frame and a scaffold support frame.

In the above embodiment, the screw shaft and the nut are in sliding contact with each other, but the ball screw with the ball interposed between the screw threads is used to connect the screw shaft and the nut by rolling friction. May be.

Further, the temporary member is not limited to the above-described net support frame and scaffold support frame, but may be other equipment such as equipment which needs to be moved up and down along the building during construction work.

[0133]

As described above, according to the present invention,
Since the guide frame or the elevating base to which the temporary member is fixed can be moved up and down by itself along the outer surface of the building, like the movement of a scale insect, it can be used even at high places or working places of existing buildings. The temporary member can be moved up and down.

Further, since the ascending / descending mechanism is moved up and down by using a simple ascending / descending mechanism in which a screw turned by a motor and a nut screwed to this screw are combined, the structure of the automatic elevating device can be reduced in size and weight. it can. Therefore, the temporary member can be easily integrated with the automatic elevating device only by providing a small mounting space on the temporary member side, and further, the large temporary member can be raised and lowered by using a large number of automatic elevating devices. Can be.

Further, as compared with the use of hydraulic lifting means such as a hydraulic jack, fine adjustment of the lifting can be performed simply by rotating the motor forward and backward without providing a check valve, and the installation position of the temporary member can be simplified. Can be adjusted.

In addition, according to the third and eighth aspects of the present invention, when the temporary member is pulled up, the load acts as a tensile load in the axial direction of the screw shaft. Even when the screw shaft is received, the screw shaft is kept in the vertical direction parallel to the lifting guide frame. Therefore, the screw shaft does not bend in the direction different from that of the lifting guide frame due to the compression load, and the sliding of the lifting base and the second lifting base is not hindered.

Further, according to the third, ninth, or thirteenth aspect of the present invention, the curing net can be easily moved up and down even at a high work place.

Further, according to the fourth, tenth, or fourteenth aspect of the present invention, the scaffold can be easily raised and lowered even at a high work place.

[Brief description of the drawings]

FIG. 1 is a partially omitted front view of an automatic elevating and lowering device 1 of a temporary member according to an embodiment of the present invention.

FIG. 2 is a partially omitted side view of the automatic elevating device 1 of FIG.

FIG. 3 is a plan view of the automatic elevating and lowering device 1 for temporary members.

FIG. 4 is a front view of a net support frame 31 to which two automatic elevating devices 1, 1 are fixed.

FIG. 5 is a plan view of the net support frame 31 of FIG.

FIGS. 6A and 6B show each step of raising and lowering the curing net 30 using the automatic lifting device 1. FIG.
Is fixed to the floor and the 23rd floor beams _{10 20} and the beam _{10 23,} a state where the lift base 3 is fixed to the beam _{10 21} Beam _{10 22} of the 21 floors and 22 floors, (b), the lifting base 3 Beam 10
To release the engagement of the ₂₁ and beam _{10 22,} a state in which increased, (c) is a lifting base 3 was raised beam _{10 22,}
The fixed state to the beam _{10 23,} (d), the guide frame member 2
To release the engagement of the beam 10 ₂₀ and the beam 10 ₂₃ of the state in which raised, (e) shows a state in which raised the guide frame member 2 to the upper floor, (f), the guide frame member , Beam 1 on the 21st floor
0 ₂₁ and the state of fixing on the 24th floor beams _{10 24} is an explanatory view showing, respectively.

FIG. 7 is a front view of a scaffold support frame 41 to which two automatic elevating devices 40 are fixed.

FIG. 8 is a plan view of the scaffold support frame 41 of FIG.

FIG. 9 is a side view of the scaffold support frame 41 of FIG.

FIG. 10 is a partial cross-sectional view showing an outrigger of the automatic lifting device 40.

FIG. 11 is a partial longitudinal sectional view of FIG.

FIG. 12 shows a slide plate 4 as a means for engaging and disengaging with a frame.
FIG. 14 is a partial plan view showing another embodiment using No. 5.

FIG. 13 is a side view of FIG.

FIG. 14 is a partial longitudinal sectional view showing still another embodiment in which a locking plate 47 that engages with and disengages from a balcony 60 is used as engaging / disengaging means.

FIG. 15 is a front view of a scaffold support frame 41 using two automatic elevating devices 70, 70.

FIG. 16 is a plan view of a main part of FIG.

FIG. 17 is a longitudinal sectional view of FIG.

FIG. 18 is a front view of a main part of the automatic elevating device 70.

FIG. 19 is a partial sectional view showing a coupling mechanism between a nut 82 and an electric motor 83.

FIG. 20 is a longitudinal sectional view showing a configuration of a positioning mechanism 74.

21 is a plan view showing a configuration of a positioning mechanism 74 and a rail support arm 79. FIG.

FIG. 22 is a side view showing the rail support arm 79.

[Explanation of symbols]

1, 40 Automatic elevating device 2 Guide frame 3 Elevating base 4, 78 Elevating guide frame 7 Outer frame support arm (first support arm portion) 10, 50, 60, 80 Frame 17 Inner frame support arm (second support arm portion) 14, 83 Electric motor (motor) 16, 81 Screw shaft 20, 82 Nut 30 Curing net 31 Net support frame (temporary member) 41 Scaffold support frame (temporary member) 71 First lifting base (lifting head) 72 Second lifting and lowering Base (elevating base) 73 Guide rail 87 Second stopper (feed plate) G Ground

Claims (14)

[Claims] 1. A guide having a first support arm (7) detachable from a frame (10) and having a vertically movable guide frame (4) formed along the outer surface of the building. The frame (2) and the second support arm (1) detachably attached to the frame (10).
7) and a vertically movable base (3) that is vertically slidable with respect to the guide frame (2) by engaging with the vertically movable guide frame (4); and forward and reverse rotation of the motor (14). A screw shaft (16) rotatably supported along the vertical direction and a screw shaft (16) are screwed into either the guide frame (2) or the elevating base (3). A nut (20) fixed to one of the lifting base (3) or the guide frame (2) that does not support the screw shaft (16), and a first support arm (7) and a second support arm. The locking of the portion (17) to the frame (10) is alternately released, and the guide frame (2) or the elevating base (3) slidable in the vertical direction is rotated forward and reverse by the motor (14). Up and down with
An automatic elevating and lowering device for a temporary member, wherein the temporary members (31) and (41) fixed to the guide frame (2) or the elevating base (3) are raised and lowered. 2. A guide having a first support arm (7) detachable from a frame (10), and a vertically movable guide frame (4) formed along the outer surface of the building. The frame (2) and the second support arm (1) detachably attached to the frame (10).
7) and a vertically movable base (3) that is vertically slidable with respect to the guide frame (2) by engaging with the vertically movable guide frame (4); and forward and reverse rotation of the motor (14). And a nut (20) rotatably supported on either the guide frame (2) or the elevating base (3), and screwed into the nut (20) to support the nut (20). A first support arm (7) and a second support arm, provided with a screw shaft (16) fixed along the up-down direction on one of the lifting base (3) and the guide frame (2), The guide frame (2) or the elevating base (3), which is slidable in the vertical direction by alternately releasing the locking of the (17) to the frame (10), is rotated by the forward and reverse rotation of the motor (14). Raise and lower,
An automatic elevating and lowering device for a temporary member, wherein the temporary members (31) and (41) fixed to the guide frame (2) or the elevating base (3) are raised and lowered. 3. The screw shaft (16) is supported by the lifting base (3), and is temporarily attached to the guide frame (2) by the temporary members (31) and (41).
3. The automatic elevating and lowering device of the temporary member according to claim 1, wherein the device is fixed. 4. The temporary member is a net support frame (31) which is disposed along an outer surface of the building and stretches a curing net (30). 2. The automatic elevating and lowering device for a temporary member according to claim 1. 5. The temporary member according to claim 1, wherein the temporary member is a scaffold support frame (41) arranged along an outer surface of the building. Automatic lifting device. 6. A guide rail (73) fixed to the building (80) and / or the ground (G), and formed with a vertical guide frame (78) along the outer surface of the building in a vertical direction; A first elevating base (71) having a first stopper slidably guided along a frame (78) and capable of engaging and disengaging from a guide rail (73); and slidable along an elevating guide frame (78). The second elevating base (72) having a second stopper (87) that is guided by the guide rail (73) and is detachable from the guide rail (73); the first elevating base is interlocked with forward and reverse rotation of the motor (83) A screw shaft (8) that is rotatable and supported in the vertical direction on (71)
1), and a nut (82) into which the screw shaft (81) is screwed and fixed to the second elevating base (72), and to the guide rail (73) of the first stopper and the second stopper (87). The first lifting / lowering base (71) or the second lifting / lowering base (72), which is alternately unlocked and slidable in the vertical direction, is raised and lowered by forward and reverse rotations of the motor (83), and the first lifting The base (71) or the second lifting base (7
An automatic elevating and lowering device for a temporary member, wherein the temporary member (41) fixed to 2) is moved up and down. 7. A guide rail (73) fixed to the skeleton (80) and / or the ground (G), and formed with a vertically movable guide frame (78) along the outer surface of the building; A first elevating base (71) having a first stopper slidably guided along a frame (78) and capable of engaging and disengaging from a guide rail (73); and slidable along an elevating guide frame (78). And a second elevating base (72) having a second stopper (87) that can be engaged and disengaged with respect to the guide rail (73). The second elevating base is interlocked with forward and reverse rotations of the motor (83). A nut (82) rotatably supported by the (72); and a screw shaft (81) screwed into the nut (82) and fixed to the first elevating base (71) along the vertical direction. Guy of the first stopper and the second stopper (87) The first lifting base (71) or the second lifting base (72), which is alternately unlocked to the rail (73) and is slidable in the vertical direction, is raised and lowered by forward and reverse rotation of the motor (83). The first lifting base (71) or the second lifting base (7
An automatic elevating and lowering device for a temporary member, wherein the temporary member (41) fixed to 2) is moved up and down. 8. The screw shaft (81) is connected to the first lifting base (7).
1), and the temporary member (4) is attached to the second lifting base (72).
8. The apparatus according to claim 6, wherein 1) is fixed. 9. The temporary member according to claim 6, wherein the temporary member is a net support frame that is disposed along an outer side surface of the building and extends a curing net. Automatic elevating device for temporary members. 10. The temporary member is a scaffolding support frame provided along the outer side of the building.
9. The automatic elevating and lowering device for a temporary member according to any one of claims 8 to 8. 11. A guide frame (2) in which an elevating guide frame (4) is formed vertically along the outer surface of the building.
Is fixed to the frame (10) by locking the first support arm (7) of the guide frame (2), and is engaged with the elevating guide frame (4) to be mutually connected to the guide frame (2). The elevating base (3) slidable in the up-down direction is attached to the second base of the elevating base (3).
A first step in which the support arm (17) and the frame (10) are unlocked and vertically movable with respect to the frame (10); and (b) the guide frame (2) or the lifting base (3). A screw shaft (16) that is rotatably supported in the up and down direction is fixed to one of the lifting base (3) and the guide frame (2) that do not support the screw shaft (16). A second step of rotating in conjunction with the motor (14) in a state of being screwed into the nut (20) to be screwed; and (c) raising and lowering the base (3) raised and lowered by rotation of the screw shaft (16); A third step of locking the second support arm part (17) and fixing the second support arm part (17) to the frame (10); (d) connecting the guide frame (2) to the first support arm part (7) and the frame (10). (E) screw shaft (16), a fourth step of releasing the locking of the shaft so as to be vertically movable with respect to the frame (10). A fifth step of interlocking the motor with the motor (14) to rotate in reverse to the rotation of (b), and (f) moving the guide frame (2) raised and lowered by the reverse rotation of the screw shaft (16) to the first support arm. A sixth step of locking the part (7) and fixing the same to the frame (10); and repeating steps (a) to (f) to select either the guide frame (2) or the elevating base (3). A method of automatically elevating and lowering temporary members, wherein the temporary members (31) and (41) fixed to one side are moved up and down along a building. 12. A guide frame (2) in which a vertically movable guide frame (4) is formed vertically along the outer surface of the building.
Is fixed to the frame (10) by locking the first support arm (7) of the guide frame (2), and is engaged with the elevating guide frame (4) to be mutually connected to the guide frame (2). The elevating base (3) slidable in the up-down direction is attached to the second base of the elevating base (3).
A first step in which the support arm (17) and the frame (10) are unlocked and vertically movable with respect to the frame (10); and (b) the guide frame (2) or the lifting base (3). Of the screw shaft (1)
6) is screwed into a rotatably supported nut (20) into either the lifting base (3) or the guide frame (2), which does not support the screw shaft (16), and (2) a second step of rotating the (20) in conjunction with the motor (14); and (c) engaging the second support arm portion (17) with the lifting base (3) raised and lowered by the rotation of the nut (20). A third step of fixing the guide frame (2) to the frame (10) by releasing the engagement between the first support arm (7) and the frame (10), and fixing the guide frame (2) to the frame (10). (E) a fifth step in which the nut (20) is rotated in reverse to the rotation of (b) by interlocking the nut (20) with the motor (14); and (f) a nut (20). The guide frame (2) raised and lowered by the reverse rotation is engaged with the first support arm (7) to form the frame (1). A temporary member (31) (fixed to either the guide frame (2) or the elevating base (3) by repeating the steps (a) to (f). 41) raising and lowering the temporary member along the building. 13. The temporary member is a net support frame (31) which is disposed along the outer surface of the building and stretches a curing net (30).
The method for automatically elevating and lowering the temporary member according to the above. 14. The method according to claim 11, wherein the temporary member is a scaffolding support frame (41) arranged along the outer surface of the building.