JPH0853296A - Machine and material lifting device - Google Patents

Abstract

PURPOSE:To save manpower for lifting and lowering a machine and a material, improve work efficiency and reduce the cost of a device by arranging an upper frame and a lower fame so as to be slidable in a vertical direction, and detachably mounting a screw jack between the upper and lower frames for lifting and lowering the upper frame. CONSTITUTION:A machine and a material are placed on the upper side of holding members 11, and the gear box 41 of a screw jack 4 is mounted on the placement board of a lower frame 2. Also, while a motor-driven tool 45 is being operated to rotate a screw section 44, the head of a shaft 42 is kept in contact with the rotating support stopper of an upper frame 1. Furthermore, the screw section 44 is rotated and the shaft 42 is elevated, thereby installing the machine and material at the prescribed position. For demounting the screw jack 4 in this condition, pins 25 are inserted in the through-holes 25 of the pillars 13 and 24 of the upper and lower frames 1 and 2, thereby fixing the upper frame 1 to the lower frame 2. Then, the screw jack 4 is lowered and demounted from the placement board 22 of the lower frame 2. In this case, the adjustment jack 3 of the upper frame 1 is turned, when necessary to adjust the vertical position of the machine and material.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for raising and lowering materials and equipment.

[0002]

2. Description of the Related Art Conventionally, when a mold 73 or the like is demolded or lowered after pouring concrete, a forklift 72 is used to lift and lower a lifting device 71 (FIG. 5). In addition, when attaching a hollow beam having a formwork function, there is a lifting method using a lifting machine or a lifting method using a supporting structure having a lifting function. As another lifting method, there is a method using a hydraulic jack.

[0003]

Problems to be Solved by the Invention The prior art has the following problems. <a> Use of a forklift is suitable for large-scale, large-span buildings, but work efficiency is generally poor. <B> It is difficult to save labor when using a lifting machine. <C> The use of the hydraulic jack has a problem in that the hydraulic jack is expensive and the safety at the time of lowering it.

[0004]

[Purpose of the present invention]

<A> The present invention aims to save labor in lifting and lowering work of materials and equipment. <B> The present invention is intended to improve work efficiency in lifting work of materials and equipment. <C> The present invention is to provide an inexpensive device for lifting work of materials and equipment.

[0005]

SUMMARY OF THE INVENTION The present invention is an equipment lifting device having an upper frame and a lower frame, in which the upper frame and the lower frame are slidably arranged in the vertical direction, and the upper frame and the lower frame are combined. A screw jack can be detachably installed between them, and the screw jack is driven to raise and lower the upper frame.The equipment lifting device, or the upper and lower frames are slidably arranged in the vertical direction, Gear box of screw jack is detachably attached to the lower frame, the shaft head of the screw jack is non-rotatably abutted on the upper frame, and the screw jack is driven to raise and lower the upper frame. The device or the upper frame and the lower frame each have four columns, and the upper frame column and the lower frame column are arranged so as to be slidable in the vertical direction, and the screw jack gear box is provided in the central portion of the lower frame. Can be removed freely The equipment lifting device is characterized in that the shaft head of the screw jack is non-rotatably abutted on the upper frame and the screw jack is driven to raise and lower the upper frame. It has two columns, the upper frame column and the lower frame column are slidably arranged in the vertical direction.The screw jack gear box is detachably attached to the center part of the lower frame and the screw frame is attached to the upper frame. An equipment lifting device characterized by abutting the shaft head non-rotatably, arranging casters and adjustment jacks under the columns of the lower frame in an interchangeable manner, and driving the screw jack to raise and lower the upper frame. It is in.

[0006]

Embodiment 1 An embodiment of the present invention will be described below with reference to the drawings. <a> Equipment lifting device (Fig. 1) The equipment lifting device has a slidable upper frame 1 and a lower frame 2,
The upper frame 1 is moved up and down with the screw jack 4. Upper frame 1
Material and equipment are placed on the upper part of the screw jack 4
Is driven by the electric tool 45 to move up and down. The screw jack 4 is detachably attached to the central portion above the lower frame 2. The head portion of the shaft 42 of the screw jack 4 is in contact with the central portion of the upper frame 1 and can be easily removed, and has a structure for preventing rotation.

<B> Lower Frame, Upper Frame (FIGS. 1, 3, and 4) The lower frame 2 has, for example, four columns 24, and the columns 24 are hollow pipes. An adjustment jack 3 is provided at the lower portion of the support column 24, and the length of the leg can be adjusted so that it can be stably arranged at the installation location. In addition, if necessary, FIG.
As shown in FIG. 4, the casters 5 are attached to facilitate movement. Further, a large number of communication holes can be provided along the axial direction of the support column 24, and the support frame 13 can be held in the middle by fixing with pins with the communication holes of the support column 13 of the upper frame 1. Upper frame 1 also
It has four columns 13 corresponding to the columns 24 of the lower frame 2 and is structured to be inserted into the hollow pipe of the lower frame 2.
It has a communication hole fixed to the lower frame 2. Further, if necessary, the adjustment jack 3 is provided on the upper portion of the column 13 of the upper frame 1,
The height of the holding material 11 can be adjusted.

<C> Installation of screw jack (Fig. 1,
2) The screw jack 4 usually has a gear box 41 and a shaft 42, and when the screw portion 44 is rotated, the shaft 42 moves up and down depending on the rotation direction. At that time, it is necessary to prevent the shaft 42 from rotating so as not to rotate. If the screw portion 44 is rotated with a small electric tool 45 such as a battery-powered electric wrench, the lifting operation can be performed by a simple operation. The screw jack 4 can be attached by, for example, a gear box 4 at the center above the lower frame 2.
1 is placed, and a space is provided so that the shaft 42 can extend downward. For this purpose, two parallel mounting materials 21 are provided on the upper part of the lower frame 2, and a mounting plate 22 having a cut 23 up to the center is mounted on the central portion of the mounting material 21. When the gear box 41 of the screw jack 4 is placed on the mounting plate 22 and the shaft 42 is passed through the notch 23, the screw jack 4 can be easily attached to the lower frame 2. On the head of the shaft 42 of the screw jack 4, for example, a plate-like protrusion 43
To form. The rotation support stopper 14 is provided with a groove 15 at the center of the support member 12 of the upper frame 1 so as to correspond to the protrusion 43.
To provide. The protrusion 43 of the head of the shaft 42 is inserted into the groove 15 to prevent the shaft 42 from rotating, and the head of the shaft 42 and the rotation support stopper 14 support the upper frame 1.

<D> Operation of Equipment Lifting Device (FIGS. 3 and 4) In the equipment lifting device, for example, as shown in FIG. The box 41 is installed on the mounting plate 22 of the lower frame 2. While rotating the screw portion 44 with the electric tool 45, the head of the shaft 42 is brought into contact with the rotation support stopper 14 of the upper frame 1. Further, the screw portion 44 is rotated to raise the shaft 42, and the hollow beam 6
1 is set in place. When removing the screw jack 4 in this state, the columns 13 and 24 of the upper frame 1 and the lower frame 2
A pin is inserted into the through hole 25 of the lower frame 2, the upper frame 1 is fixed to the lower frame 2, the screw jack 4 is lowered, and the mounting plate 2 of the lower frame 2 is inserted.
Remove from 2. At this time, when the vertical position of the hollow beam 61 needs to be adjusted, the adjustment jack 3 of the upper frame 1 can be rotated for adjustment.

Further, as shown in FIG. 4, the beam form 62 is placed on the equipment raising / lowering device, the screw jack 4 is driven to install it at a predetermined position, and concrete is poured to form a beam. The mold is disassembled, the screw jack 4 is rotated, and the upper frame 1 is lowered. Lower the upper frame 1 to the lowest position and remove the screw jack 4 from the lower frame 2. When moving the equipment lifting device laterally, retract the adjustment jack 3 of the lower frame 2
The casters 5 can also be used.

[0011]

According to the present invention, the following effects can be obtained. <a> Since the screw jack is used, it can be easily moved up and down, and it is not excessively raised or lowered, and labor can be saved. <B> Since the screw jacks are arranged at one central location, a quick lifting operation can be obtained. <C> Since it can be raised and lowered with a simple battery-powered tool,
Work efficiency can be improved and quick work can be achieved. <D> Since the screw jack is removable, maintenance is easy and cost can be reduced. <E> Since the lifting work is simplified, the construction period can be shortened.

[Brief description of drawings]

[Figure 1] Perspective view of equipment lifting device

FIG. 2 is an explanatory diagram of a screw jack.

[Figure 3] Installation explanatory diagram of the hollow beam using the equipment lifting device

[Fig. 4] Illustration of use of beam formwork using equipment lifting device

FIG. 5 is an explanatory view of a conventional technique using a forklift.

[Explanation of symbols]

 1 ... Upper frame 2 ... Lower frame 3 ... Adjustment jack 4 ... Screw jack 42 ... Shaft

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Sumio Fukuda 1-16-14 Shibuya, Shibuya-ku, Tokyo Tokyu Construction Co., Ltd. (72) Inventor Junichi Watanabe 1-16-14 Shibuya, Shibuya-ku, Tokyo Tokyu Construction Co., Ltd.

Claims (4)

[Claims] 1. An equipment lifting device having an upper frame and a lower frame, wherein the upper frame and the lower frame are arranged slidably in the vertical direction, and a screw jack is detachably attached between the upper frame and the lower frame. An equipment lifting device characterized by driving a screw jack to lift and lower the upper frame. 2. An equipment lifting device having an upper frame and a lower frame, wherein the upper frame and the lower frame are arranged slidably in the vertical direction, and a screw jack gear box is detachably attached to the lower frame. An equipment lifting device characterized in that the shaft head of the screw jack is non-rotatably abutted on the shaft and the screw jack is driven to raise and lower the upper frame. 3. An equipment lifting device having an upper frame and a lower frame, wherein each of the upper frame and the lower frame has four columns, and the columns of the upper frame and the columns of the lower frame are slidable in the vertical direction. It is arranged so that the gear box of the screw jack is detachably attached to the center part of the lower frame, the shaft head of the screw jack abuts non-rotatably on the upper frame, and the screw jack is driven to raise and lower the upper frame. And equipment lifting device. 4. An equipment lifting device having an upper frame and a lower frame, wherein each of the upper frame and the lower frame has four columns, and the columns of the upper frame and the columns of the lower frame are slidable in the vertical direction. The gearbox of the screw jack is detachably attached to the central part of the lower frame, the shaft head of the screw jack is abutted on the upper frame in a non-rotatable manner, and the casters and adjustment jacks are replaced at the bottom of each column of the lower frame. Equipment for raising and lowering equipment, which is arranged freely and drives the screw jack to raise and lower the upper frame.