JPS6233864Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a formwork support device used for assembling and dismantling formwork formed when pouring concrete on a ceiling surface, and is related to a formwork support device that was previously filed by the applicant. This is an improved version of the support device for formwork made of butter, etc., as disclosed in Utility Model Publication No. 53-44838. The formwork support device according to this earlier application has a self-supporting column, a lower column, an intermediate column,
The upper support is divided into sections, and the length of the intermediate support, which is unrelated to other auxiliary equipment, is selected as appropriate, and the free-standing support is adjusted according to changes in the height of the floor and ceiling surfaces at the construction site. Although the length is adjusted, this formwork support device has the disadvantage that it is inconvenient to attach and detach the intermediate support, and the longer the self-supporting support is, the more difficult it is to erect it.

In view of the above-mentioned points, the present invention allows the length of the pillars of the formwork support device to be adjusted freely using power.

Hereinafter, an embodiment of the present invention will be described based on the drawings. Reference numeral 1 denotes a frame on which a winch 2 is mounted. At the bottom of the frame 1 are wheels 3 for movement and a base jig 4 for self-sustaining stability. is arranged. Reference numeral 5 denotes a guide column, which is extendable and retractable by an upper tube 5' and a lower tube 5'', and the lower end of the lower tube 5'' is attached to the frame 1.
is fixed to. Reference numeral 6 denotes a support column, which is extendable and retractable by a male spiral tube 6' and an outer tube 6'' into which the male spiral tube 6' is loosely fitted, and the lower end of the outer tube 6'' is fixed to the frame 1. ing. Reference numeral 7 denotes a ceiling surface support member that abuts and supports the ceiling surface, and the upper tube 5' of the guide column 5 and the male spiral tube 6' of the support column 6 are fixed to each other. Reference numeral 8 denotes an elevating frame, which is supported so as to be movable up and down relative to the guide column 5, and is raised and lowered by the operation of a wire 9 in the winch 2. Reference numeral 10 denotes a guide roller, which is provided on the elevating frame 8 and is used to stably and easily move the elevating frame 8 up and down. Reference numeral 11 is a pulley, which is provided on the lifting frame 8 and over which the wire 9 is passed. Reference numeral 12 denotes a formwork holder having a tightening wedge 13, which is provided integrally with the elevating frame 8. Reference numeral 14 denotes a pulley provided on the ceiling support member 7, through which the wire 9 is passed. Reference numeral 15 denotes a claw, which is installed on the upper surface of the ceiling support member 7, and is provided to securely fix the column to the floor and ceiling. Reference numeral 16 denotes a base provided at the upper end of the outer tube 6'', and an electric motor 17 is provided on the base 16 so as to be rotatable in forward and reverse directions. It is a gear having a mating female thread, which engages with the gear 19 of the electric motor 17 and rotates forward and backward to raise and lower the male threaded pipe 6'.A thrust bearing is provided at both ends of the gear 18. 20, 20 and washers 21, 21 are interposed, and the bolt 23 inserted into the hole in the pressing plate 22 is inserted into the base 16.
The gear 18 is rotatably fixed by being screwed into the thread. 24 is a reinforcing material for the base 16.

Therefore, in order to dismantle the formwork that supports the ceiling surface after pouring and curing concrete on the ceiling surface, first place the formwork support device of the present invention at the desired position on the floor surface (below both ends of the main pipe). The formwork support device is fixed by extending the base jack 4. Therefore, after loosening the wire 9 to a desired length, the electric motor 17 is driven to rotate the gear 18, and the male screw tube 6' screwed into the female screw portion of the gear 18 is moved upward to move the ceiling support member 7. is brought into contact with the concrete panel 25 on the ceiling surface to support it. Therefore, the large underwriting pipe 26 is hung over the formwork holder 23 of the lifting frame 8 of the opposing formwork support device, the winch 2 is driven, the wire 9 is wound in, and the lifting frame 8 is moved to the position of the large pulling pipe 27. The formwork is raised so that the entire formwork is received by the large underwriting pipe 26. Therefore, after removing all the pipe supports that had been supporting the formwork, the winch 2 was driven to let out the wire 9, the lifting frame 8 was lowered, and the large pulling pipe 27,
Lowering the entire formwork consisting of the joist pipe 28,
Stop when it has descended to about 160 to 180 cm, and then support the entire formwork again with pipe supports.
Using this as a stage, the concrete panel 25 is removed. After removing the concrete panel 25, the pipe support is removed, the entire formwork is lowered to the bottom, and the joist pipe 28, the main pipe 27, and the large support pipe 26 are removed in this order. When assembling, the process can be done in reverse.

As described above, the formwork support device of the present invention is easy to use because the height of the support column can be freely adjusted using an electric motor that can be rotated in forward and reverse directions according to changes in the height between the floor and ceiling surfaces at the construction site. It will be good.

[Brief explanation of the drawing]

FIG. 1 is a front view of the device of the present invention, FIG. 2 is a left side view thereof, and FIG. 3 is an enlarged partial cross-sectional view of a drive section consisting of an electric motor 17. The symbols in the figure are as follows. 1... Frame, 2... Winch, 3... Wheels, 4... Base jack, 5... Guide strut, 6... Support strut,
7...Ceiling surface support member, 8...Elevating frame, 9
...Wire, 10...Guide roller, 11...
...Pulley, 12...Formwork pedestal, 14...Pulley, 16
... Base, 17 ... Electric motor, 18 ... Gear, 20
... Thrust bearing, 21 ... Washer, 2
2...Press plate.

Claims (1)

[Scope of utility model registration request] A guide column that is extendable and retractable using an upper tube and a lower tube and a support column that is extendable and retractable by loosely fitting a male spiral tube into the outer tube are erected on a frame equipped with wheels. The male spiral pipe of the support column is fixed and integrated with the ceiling support member, the guide column is equipped with an elevating frame having several guide rollers, the elevating frame is equipped with a formwork cradle, and the frame is equipped with a winch. The lifting frame is supported in a vertically movable manner by a winch wire stretched through a pulley provided on the ceiling surface support member, and a gear is formed with a female screw portion to be screwed into the male screw tube of the support column. The guide column is rotatably mounted on a base provided at the upper end of the outer tube, and the length of the guide column is adjusted by rotating the gear in the forward and reverse directions with the forward and reverse operation of the electric motor to raise and lower the male spiral tube. A formwork support device characterized by: