JPH0653560B2 - Equipment for supporting materials such as ceiling boards - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for lifting and supporting a building material at a predetermined height at a construction site or the like. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a material lifting support device such as a ceiling plate that is suitable for a worker to stretch and fix the ceiling plate that is supported and fixed to a position by using nails or the like.

2. Description of the Related Art Conventionally, the work of stretching a ceiling plate or the like at a construction site of a building cannot be easily performed by one person because the ceiling plate is a considerably wide and long flat plate body. The ceiling plate is supported and fixed on the ceiling surface by a plurality of people by using a folded stepladder or by assembling and tensioning with a nail or a screw. In addition, when the ceiling position is low to some extent in a wooden house and the ceiling plate is a relatively lightweight material such as a boat version, a minimum of two people are required, and one person should use proper equipment in one direction. It was supported from below, and while another person was pushing up the other end from below using a stepladder etc., at the same time, nails and screws etc. were struck and stretched while facing upward.

Further, as a device for tensioning a large-sized ceiling tension material, Japanese Patent Publication No. Sho 62-21941, which is a ceiling panel placement device, has been proposed.

Problems to be Solved by the Invention Among the conventional technologies, a scaffold assembled by a plurality of people is used,
It is inefficient to use a stepladder to carry out the work of tensioning the ceiling plate, etc., because it is necessary to assemble a scaffold, carry or move the stepladder, and it is inefficient, and the construction period is long and the unit construction cost is high. There was a problem.

Also, in the work of tensioning ceiling boards in wooden houses, etc., at least two people are required for the work of tensioning the ceiling, which increases the unit price of construction work and requires support from below, which is inefficient. However, if it is supported from below for a long period of time, tiredness is severe, and dust such as wood chips may get in your eyes, which is a safety and health problem.

Further, in Japanese Examined Patent Publication No. Sho 62-21941, it can be used only when the mounting member for the ceiling panel is a fixed mounting member and the ceiling panel is mounted so as to be fitted between the mounting members. Yes, for example, it cannot be used for the work of tensioning the ceiling of a wooden house, etc., and it also changes the position by rotating the suspended ceiling panel from the vertical position to the horizontal position. There is a problem in that it cannot be used at a construction site where a space is required and a ceiling plate of a general building is usually installed.

Means for Solving the Problems The present invention is to propose the invention as a result of intensive research for the purpose of solving the problems in the prior art.

The present invention will be described with reference to the drawings.

Reference numeral 1 denotes an air cylinder, which is formed in a substantially cylindrical body made of metal, and a safety discharge port 2 of a small-diameter cylindrical body is provided in communication with the upper part of the air cylinder 1 in a protruding manner, and in the lower part thereof. A small-diameter cylindrical body supply / discharge port 3 is provided in a protruding manner.

As shown in FIG. 3, a ventilation pipe 4 is connected to the supply / discharge port 3, and the ventilation pipe 4 is bifurcated from the middle, and one end direction of the branched ventilation pipe 4 is directed. Supply section 5
Is provided, and a discharge part 6 is provided in the direction of the other end of the branched ventilation pipe 4.

The supply unit 5 is composed of a branched ventilation pipe 4 and a connection port 7 provided at an end of the ventilation pipe 4, and the connection pipe 8 connected to the connection port 7 is connected to a supply port of an appropriate air compressor. To supply air into the air cylinder 1.

The discharge part 6 includes a branched vent pipe 4, a cock 10 provided at a discharge port 9 in the end direction of the vent pipe 4, and the cock 10.
And an eject button 11 attached so as to be opened and closed. A pull bar 13 is connected to the opening / closing handle 12 of the cock 10 as shown in FIG.

As shown in FIG. 3, the safety discharge port 2 is provided in the upper direction close to the upper end of the air cylinder 1, and the piston 14 is pushed up in the air cylinder 1 by the compressed air to move up, and the safety discharge port 2 When excessive compressed air is supplied so as to rise further above the position of, the excessive compressed air comes from the inside of the air cylinder 1 from the safety discharge port 2 located below the lower end of the piston 14. It is discharged to the outside through the safety discharge port 2, the rise of the piston 14 is blocked, and the piston 14 descends at least to the position of the safety discharge port 2. That is, the safety outlet 2
Is a through hole of a small-diameter cylindrical body provided so as to connect the inside and the outside of the air cylinder 1, and serves as an upper limit of the piston 14 when excessive compressed air is supplied.

Reference numeral 14 denotes a piston, which is slidably provided by compressed air supplied into the air cylinder 1. A piston rod 15 is integrally connected to the piston 14, and the other end of the piston rod 15 is provided. A mount 16 is attached to the.

The mounting body 16 is made of a rigid material such as a metal rod and is formed into a substantially rectangular frame body from a substantially X-shaped diagonal rod 17 and four frame rods 18. The piston rod 15 is provided so as to be rotatable in the orthogonal direction.

As shown in FIG. 3, the air cylinder 1, the ventilation pipe 4, the discharge part 5, the supply part 6 and the like are pillars 19 having a substantially hollow rectangular prism shape.
The pillar body 19 is vertically installed inside, and the pillar body 19 is vertically installed on a base 21 provided with a caster 20 at a lower portion thereof.
It is surrounded and supported by a frame body 22 which is erected upright.

Reference numeral 23 denotes a connecting body, one end of which is connected to the diagonal bar 17 of the mounting body 16 and the other end of which is connected to the pulling bar 13 which is connected to the opening / closing operation handle 12 of the cock 10 of the discharging section 6.

The connecting body 23 is a tough and flexible material such as a cord or chain made of a suitable material, and is stretched to have a certain length, for example, in the case of a wooden house, a length of about 2 meters and 20 cm. The length is set in advance according to the height of the ceiling to be installed.

A buffer coil spring 24 is loosely fitted to the piston rod 15 as shown in FIGS. 1 to 3, and the piston rod 15 is vertically movable while the buffer coil spring 24 is inserted.

Reference numeral 25 is a rod cover, which is a substantially hollow prismatic body attached to the upper portion of the support column 19, and the piston rod 15 is provided so as to pass through the rod cover 25 and be vertically movable.

26 is a fixing screw, as shown in FIGS. 1 and 2,
The rod cover 25 is provided so as to be movable inward and backward in the upper direction of the rod cover 25 and capable of contacting the piston rod 15.

It is provided so that the piston rod 15 can be stopped and fixed at a position of an arbitrary height by tightening the fixing screw 26.

Reference numeral 27 denotes a gauge meter, which is provided so as to measure the air pressure supplied into the air cylinder 1 and display the meter.

By operating the supply unit 5 in the air cylinder 1, compressed air supplied from an air compressor provided separately is supplied,
The piston 14 and the piston rod 15 are moved upward, and the ceiling material A mounted on the mounting body 16 provided at one end of the piston rod 15 is lifted and supported at a predetermined height and fixed at a predetermined position. The ceiling material A is stretched using a hammer or the like. In this case, even if an excessive amount of compressed air is supplied from the air compressor, excess compressed air is discharged from the safety discharge port 2, and the connecting body 23 having a predetermined length is set so as not to exceed the predetermined height. Since one end of is connected to the cock 10, it does not exceed a predetermined height.

When the discharge button 11 is pulled upward, the cock 10 opens, the compressed air in the air cylinder 1 is discharged, and the mounting body 16 descends gently.

Embodiment FIG. 2 shows an embodiment of the present invention, in which the mounting body 16
The ceiling material A is placed on the top, the mounting body 16 is rotated to determine the mounting position of the ceiling material A, and the supply unit 5 is operated to supply compressed air from the separately provided air compressor to the inside of the air cylinder 1. Is supplied to the piston rod 15 to raise it to a predetermined position to support it by lifting, and an operator stretches the ceiling material A using a nailing machine or the like.

When the tensioning of the ceiling material A is completed, the discharge part 6 is operated to discharge the compressed air in the air cylinder 1 to gently lower the mounting body 16 and perform the next work.

EFFECTS OF THE INVENTION Since the present invention is configured as described above, in a construction site, in the work of stretching a building material, particularly a ceiling plate on the ceiling, even if only one person is used, the ceiling material is placed on the mounting body 16 of the present invention. When A is placed and the supply unit 5 is operated to supply compressed air from the air compressor provided separately into the air cylinder 1, the piston rod 15 is lifted to lift and support the ceiling material A at an arbitrary position. Since the ceiling material A lifted and supported by the mounting body 16 can be stretched by using nails or screws, one person can perform the work of tensioning the ceiling plate or the like, which was not possible conventionally by one person. However, it has an excellent effect that it can be easily done and there is no need to use a scaffold or a stepladder for lifting the ceiling material for the work of tensioning the ceiling plate or the like.

The present invention provides a ceiling material A by supplying compressed air from a separately provided air compressor of a nailing machine that uses compressed air called an air gun generally used at a construction site.
The effect that it can be easily used in a construction site of any place, for example, in a ceiling installation work at a construction site of a wooden house in an extremely limited space, since it can be lifted and supported by a simple operation. There is.

According to the present invention, the ceiling material A placed on the mounting body 16 is precisely positioned at a position where the ceiling material A is to be stretched in advance, and once the ceiling material A is lifted and supported, the discharge portion 6 cannot be operated to descend. As long as the ceiling material A is fixed at a fixed position and does not move, there is an effect that the work of stretching the ceiling material A can be performed extremely easily and efficiently. INDUSTRIAL APPLICABILITY The present invention has an effect that it can be used not only for tensioning a ceiling plate but also as a device for supporting materials and other objects while lifting them up to a certain height for all purposes.

Since the air cylinder 1 is provided with the safety discharge port 2, there is no risk of the air cylinder 1 itself being damaged even if excessive compressed air is supplied, and the connecting body 23 set to a predetermined length is used. Is connected to the mounting body 16 and the opening / closing operation handle 12 of the cock 10, the mounting body 1
When 6 rises above a predetermined length, that is, the length of the connecting body 23, the compressed air of the air cylinder 1 is automatically discharged to prevent the placing body 16 from rising, so that the placing body 16 is fixed. Since it is possible to stop and support at the height position, there is an effect that work can be performed extremely safely and efficiently.

Since the mounting body 16 attached to the piston rod 15 is rotatably provided, positioning of the ceiling material A does not require rotation while the ceiling material A is mounted on the mounting body 16.
There is an effect that the tensioned position can be easily positioned.

Since the casters 20 are provided on the base 21, there is an effect that the apparatus of the present invention can be easily moved.

[Brief description of drawings]

1 is a perspective view of the present invention. FIG. 2 is a perspective view showing a state in which the present invention is used to raise and support a ceiling material. FIG. 3 is a cross-sectional view of an essential part of the present invention. 1 ... Air cylinder, 2 ... Safety discharge port, 3 ... Supply / discharge port, 4 ... Vent pipe, 5 ... Supply part, 6 ... Discharge part, 7 ... Connection port, 8 ... Connection pipe, 9 ... Discharge port, 10 ... Cock , 11 ... Ejection button, 12 ... Opening / closing operation handle, 13 ... Tension rod, 14 ...
Piston, 15 ... Piston rod, 16 ... Mounting body, 17
... Diagonal support, 18 ... Frame support, 19 ... Support support, 20 ... Casters, 21 ... Base, 22 ... Frame support, 23 ... Linkage, 24 ...
Buffer coil spring, 25 ... Rod cover, 26 ... Fixing screw, 27 ... Gauge meter

Claims (2)

[Claims] 1. An air cylinder provided with a discharge part, a supply part, and a safety discharge port, and a piston rod connected to a piston slidably provided by air pressure supplied into the air cylinder, A mounting body provided at one end of the piston rod, and a connecting body having one end connected to the cock of the discharge part and the other end connected to the mounting body, the connecting body being a preliminarily formed body of the mounting body. A material lifting support device such as a ceiling plate, which is characterized in that the length is set to be equal to the set rising limit distance. 2. A safety outlet is located below the lower end of the piston that has risen in the air cylinder to a position close to the upper end of the air cylinder in the upper direction and at least close to the inner upper end of the air cylinder. The material lifting and supporting device for a ceiling plate or the like according to claim 1, which is provided so as to communicate the inside and the outside air.