JPH08303012A - Lifting member bending prevention device for building unit canopy - Google Patents

Abstract

PURPOSE: To facilitate horizontal motion of a lifting member for a building unit canopy without any bend, and flexibly cope with different sizes of building units for the lifting thereof in a good balance. CONSTITUTION: A bending prevention device 10 for a building unit canopy 1 is laid along the lengthwise direction of the vibratable four arms 5 of a freely opened and closed shade 2 to form the canopy 1, and provided with two long- sized rollers 11 and 11 laid in parallel. Also, the rollers 11 and 11 is freely rotatable, and chains 16 to form the canopy 1 are led through space between the rollers 11 and 11.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for preventing bending of a suspension member in an umbrella device for a building unit, and can be used for an umbrella device that can be opened and closed to cover a building unit used when constructing a unit type building in rainy weather.

[0002]

BACKGROUND ART A unit-type building is built by combining a plurality of building units produced in a factory in advance at a construction site. Generally, it is difficult to construct such a unit-type building in rainy weather because the building unit gets wet when the building unit is hung by a crane. There is a need for a device that can carry out hanging work in the field. Therefore, the present applicant has already proposed a building unit umbrella device that enables construction of a unit-type building even in rainy weather (Japanese Patent Application No. 6-294551).

This umbrella device extends radially from the center side,
And, an umbrella having a plurality of umbrella frame members capable of swinging in the vertical direction with the end portion on the center side as a base point is attached to a hanging member made of a chain or the like for hanging a building unit,
In order to prevent the suspension member and the umbrella frame member from coming off, the suspension member is inserted through the inside of the umbrella frame member and is regulated by the umbrella frame member. A hook is attached to the tip of such a hanging member, and the hook is hooked and lifted by hanging bolts attached to the four corners of the upper surface of the building unit.

[0004]

By the way, a building unit has a predetermined size (for example, length × width dimension is 4M × 1.5) based on a certain standard dimension (module; M).
M, 6M × 2.5M, etc.), and a unit-type building is built by combining a plurality of such building units. When building such a unit building in rainy weather, open an umbrella and hang multiple building units of different sizes, and move the hanging members horizontally each time to accommodate the size of the building unit to be hung. I have to let you.

However, in the above-mentioned umbrella device, the hanging member is inserted into the inside to regulate the hanging member so that the hanging member does not come off from the umbrella frame member. As a result, when suspending a plurality of building units of different sizes, the suspension member moves horizontally while being regulated by the umbrella frame member that is also the regulation member. Then, at this time, the hanging member made of a chain comes into contact with the umbrella frame member to be entangled, does not move horizontally smoothly, and is lifted while being bent. Therefore, there is a problem that the support by the four hanging members becomes unbalanced. .

It is an object of the present invention that a hanging member of an umbrella-shaped device of a building unit can be easily moved horizontally without bending and a building can be lifted in a well-balanced manner flexibly corresponding to building units of different sizes. An object is to provide a bending prevention device for a unit suspension member.

[0007]

A bending preventing device for a hanging member in an umbrella device for a building unit according to the present invention is a hanging member for hanging a building unit constituting a unit type building, and the hanging member provided on the hanging member. An umbrella device for a building unit is configured with an umbrella covering the unit, and the umbrella extends radially from the center side, and a plurality of vertically swingable with the end portion on the center side as a fulcrum. It is characterized in that it has an umbrella framework member, and that these umbrella framework members are provided with a friction reducing member for guiding the horizontal movement of the hanging member.

In the bending prevention device for the hanging member in the umbrella device of this building unit, the hanging member is formed of a chain, and the friction reducing member is provided along the longitudinal direction of the umbrella frame member, and is parallel and rotatable with respect to each other. It may be formed by including the two long roller members, and the chain may be inserted between the two roller members. A friction reducing member may be provided on one side surface of each umbrella frame member.

[0009]

According to the present invention as described above, the suspension member moves horizontally while being guided by the friction reducing member provided on the umbrella frame member, so that the suspension member is smoothly moved, whereby the suspension member does not bend. It can be easily moved horizontally and can be lifted in a well-balanced manner by flexibly responding to building units of different sizes.

In the bending prevention device for the hanging member in the umbrella device of this building unit, the hanging member is formed of a chain, and the friction reducing member is provided along the longitudinal direction of the umbrella frame member and is rotatable in parallel with each other. If the chain is a long roller member and the chain is inserted between the two roller members, when the chain horizontally contacts the two roller members, the rotation of the roller members causes friction. It is reduced, which enables smooth movement of the chain. Moreover, when the friction reducing member is provided on one side surface of each umbrella frame member, the friction reducing member can be attached by using the existing umbrella device as it is.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows an umbrella device 1 of a building unit provided with a bending member bending prevention device 10 of the present embodiment, and a building unit 20 lifted by this umbrella device 1. As shown in this figure, the umbrella device 1 is configured to include an umbrella 2 that can be opened and closed, a chain sling 3 that is a hanging member to which the umbrella 2 is attached, and a drive unit 4.

The umbrella 2 is composed of four arm members 5 which are swingable umbrella frame members, and an opening / closing mechanism 6 for opening and closing the arm members 5 and a chain sling 3. The waterproof sheet 7 which covers the arm member 5 is provided. The chain sling 3 is composed of a suspension ring 15 and four chains 16 connected to the suspension ring 15. The chain sling 3 can be hung from the crane by hooking the suspension ring 15 on the hook 8 on the crane side. . Further, hooks (not shown) are attached to the ends of the four chains 16, and the hooks and the hanging bolts 21 provided at the four corners of the upper surface of the building unit 20 are engaged with each other.

As shown in FIGS. 2 and 3, the opening / closing mechanism 6 is provided with a horizontal frame member 30. The horizontal frame member 30 is formed in a quadrangular frame shape, and a short wire 31 connects the chain sling 3 to the chain sling 3. It is connected to the chain 16. The horizontal frame member 30 includes four connecting plates 3 extending obliquely downward.
A vertical pipe member 36 is fixed by 7, and a slide pipe 38 is provided in the pipe member 36 so as to be vertically slidable. A link center 60 having a link portion 60A radially extending from the center of the slide pipe 38 is formed on the upper portion of the slide pipe 38. The link center 60 also serves as a stopper that restricts the downward movement of the slide pipe 38 by a predetermined amount or more.

On the lower surface of the horizontal frame member 30, the horizontal frame member 3
Arm brackets 61 are provided respectively on extension lines connecting the center of 0 and its four corners, and the four arm members 5 are attached to the arm brackets 61 so as to extend radially on the extension lines. There is. The direction in which these arm members 5 extend is substantially the same as the direction in which the link portions 60A extend radially.

Each of these arm members 5 is sandwiched on both sides by an arm bracket 61, and a proximal end arm 6 whose end portion close to the center is connected by a horizontal pin 34.
2 and a tip arm 63 connected to the base arm 62
It is comprised including. Each of these arms 62, 6
3 is formed of, for example, a square pipe, and the base end arm 62 and the tip end arm 63 are connected to each other via a pair of connecting plates 64 arranged so as to sandwich the side surfaces on the opposite end sides. .

The link section 6 in the link center 60
At the tip of 0A, a connecting arm 5 is connected via a horizontal pin 52.
One end 53A of 3 is rotatably attached, and the other end 53B of the connecting arm 53 is sandwiched between the connecting plates 64 of the arm member 5 and the horizontal pin 54
It is rotatably attached. Therefore, the vertical movement of the link center 60, that is, the vertical movement of the slide pipe 38 causes one end 53A and the other end 53 of the connecting arm 53 to move.
B and oscillate, whereby each arm member 5 can oscillate. Here, the opening / closing mechanism 6 is configured by including the horizontal frame member 30, the pipe member 36, the slide pipe 38, the connecting arm 53 and the like.

As shown in detail in FIG. 4, each arm member 5
The bending prevention device 10 is provided on one side surface in the horizontal direction. That is, the bending prevention device 10 is configured to include two long rollers 11, 11 arranged in parallel with each other along the longitudinal direction of the arm member 5, and these long rollers 11, 11 are supported. It is rotatably supported by a support shaft 13 attached to the members 12A and 12B.
Further, the support member 12A is attached to the connecting plate 64 and the support member 12B is attached.
Is a base plate 14 fixed to the side surface of the arm member 5.
Are attached to each.

The chain 16 is inserted between the two long rollers 11 and 11 as described above, and is horizontally slidable within the length of the rollers 11 and 11. There is. Therefore, the long rollers 11, 11 are
It is a regulating member that regulates the chain 16 so as not to come off the arm member 5. As a result, the arm member 5 does not come off from the chain 16 even when swinging.
In other words, the arm member 5 is in a state of being guided by the chain 16 of the chain sling 3, and the opening / closing mechanism 6, the chain sling 3, and the building unit 10 are suspended from the same center as the starting point. Then, as shown in FIG. 5, when the chain 16 of the chain sling 3 slides and comes into contact with the long rollers 11, 11, the rollers 11, 11 rotate about the support shaft 13, so that the chain 16 is not anywhere. You can move smoothly without getting tangled.

As shown in FIG. 3, the lower end of the slide pipe 38 is connected to the drive means 4 via a connecting member 44. That is, the drive means 4 is provided with a hydraulic cylinder 40, which is arranged parallel to and vertically to the slide pipe 38, and the upper end portion of which is attached to the bracket 41 which is erected on the upper surface of the horizontal frame member 30 with a cross section L. It is fixed via a V-shaped upper mounting member 42, and the lower end is a lower mounting member 4
It is fixed to the lower portion of the pipe member 36 via the connector 3. The tip of the rod 40A of the hydraulic cylinder 40 is connected to the slide pipe 38 by the connecting member 44. The bracket 41 is fixed on a horizontal member (not shown) that is mounted on the horizontal frame member 30.

A pressure oil supply unit 47 is provided on the upper surface of the horizontal frame member 30 via a base plate 46. Inside the pressure oil supply unit 47, although not shown, an oil tank, a hydraulic pressure switching valve, An operation source for operating the hydraulic pressure switching valve is provided. Further, a receiving device 48 is attached to the hydraulic pressure supply unit 47, and this receiving device 48 is capable of exchanging signals with the starting device 49 shown in FIG. By operating an internal hydraulic pressure switching valve or the like, pressure oil is supplied from the hydraulic pressure supply unit 47 to the hydraulic cylinder 40 through the reciprocating pipes 50A and 50B, and the rod 40A is expanded and contracted. Reference numeral 51 is an electric wire that is connected to the on-site power supply and that supplies electricity to the hydraulic pressure supply unit 47.

The relationship between the hydraulic cylinder 40 and the opening / closing mechanism 6 will be described below. When pressure oil is supplied to the hydraulic cylinder 40 to extend the rod 40A, the slide pipe 38 slides down in the pipe member 36 along with it. Then, the other end portion 53A of the connecting arm 53 rises, and the tip end side of the arm member 5 rises accordingly. In other words, the umbrella 2 will open, and as a result,
The state shown in FIG. 1 is obtained. If the rod 40A of the hydraulic cylinder 40 is contracted and retracted, the reverse of the above occurs, and the arm member 5 is folded and the umbrella 2 is closed, as shown by the phantom line in FIG.

The waterproof sheet 7 is a chain slinger 3-4.
The chain 16 and the four arm members 5 are fixed and covered at predetermined places, and an opening 7A is formed in the upper part. Further, the lower end portion has a shape that hangs down from the tip of the tip arm 63. The waterproof sheet 7 is made of a waterproof material such as polyvinyl chloride, and is transparent or colored blue or the like. Further, on the upper part of the chain slinger 3, an upper waterproof sheet 9 which covers the four chains 16 and prevents rain and the like from entering the opening 7A is provided.

Next, a procedure for suspending the building unit 20 in the rain by the above umbrella device 1 will be described. When opening the umbrella 2, the operator operates the transmitter 49 to supply pressure oil from the pressure oil supply unit 47 to the hydraulic cylinder 40 to extend the rod 40A. Then, the slide pipe 38 slides down in the pipe member 36 as the rod 40A extends. Accordingly, the one end portion 53A of the connecting arm 53 supported by the pin 52 descends, but the pin 52
The other end side 53B supported by is raised, and further the tip end side of the arm member 5 is raised. In other words, the umbrella 2 will be opened.

With the umbrella 2 open, the chain slinger 3
The hook at the tip of the chain 16 is locked to the hanging bolt 21 of one building unit 20, and the building unit 20 is lifted by a crane. Then, this building unit 20 is arranged at a predetermined position. Next, when the building unit 20 'having a length longer than that of the building unit 20 is lifted, the chain 16 slides in the horizontal direction corresponding to the building unit 20'. At this time, if the chain 16 comes into contact with the two long rollers 11, 11, the rollers 11, 11 rotate, so that the chain 1
6 slides easily without getting entangled anywhere. Thereafter, the same operation as described above is repeated to complete the planned work of suspending the building unit 20 and the like. After the lifting work of all the building units 20 and the like is completed, the worker operates the transmitting device 49 to close the umbrella 2 by the action opposite to the above, and loads the umbrella device 1 on the truck.

According to this embodiment as described above, the following effects can be obtained. The chain 16 of the chain slinger 3 is regulated by the two long rollers 11 and 11 so as not to come off from the arm member 5. However, when the chain 16 slides in the horizontal direction, the chain 16 comes into contact with the long rollers 11 and 11. Then, since the rollers 11 and 11 rotate, the chain 16 is not entangled anywhere, and can be easily moved horizontally without bending.

The chain 16 of the chain slinger 3 is
The bending prevention device 10 provided on the side surface of the arm member 5 is inserted between the two long rollers 11 and 11, and the building unit 20 and the umbrella 2 are hung below the same center line of the chain 3. Therefore, the positional relationship between the umbrella 2 and the building unit 20 does not shift, and thus the building unit 20 can be protected from rain.

The building unit 20 is a chain slinger 3
The chain slinger 3 is attached with an umbrella 2 which can be freely opened and closed. Therefore, the umbrella 2 may be opened and the building unit 20 may be lifted, so that the building unit 20 can be hung up even in rainy weather.

The present invention is not limited to the above-mentioned embodiments, but includes the following modifications as long as the object of the present invention can be achieved. For example, in the above embodiment, the two long rollers 1 of the bending prevention device 10 are used.
Although 1 and 11 are provided on the side surface of the arm member 5, the present invention is not limited to this. Two long rollers may be arranged.

In the above embodiment, the bending prevention device 10 is also provided.
Although the two long rollers 11 and 11 are used as the friction reducing members of the above, the present invention is not limited to this, and for example, the rollers have a height approximately equal to the width dimension of the side surface of the arm member 5 and are orthogonal to the longitudinal direction. A large number of rollers are arranged side by side to form a roller group,
Two groups of these rollers may be provided in the longitudinal direction of the arm member 5, and the chain 16 may be inserted between these groups of rollers. Even in this case, each of the above effects can be obtained.

Further, in the above embodiment, the bending prevention device 1 is used.
Two long rollers 11 and 11 were used as the friction reducing member of No. 0, but the present invention is not limited to this.
The long pipe members of the book are arranged such that the semicircular portions face each other along the longitudinal direction of the arm member 5, and are arranged in parallel to each other at a predetermined interval, and between the pipe members. Alternatively, the chain 16 may be inserted therethrough. Even in this case, when the chain 16 slides, friction is reduced because the contact area between the chain 16 and the pipe member is small, so that the chain 16 does not get entangled anywhere and can be easily bent without bending. Can move horizontally.

[0031]

As described above, according to the bending prevention device of the suspension member in the umbrella device for a building unit of the present invention, the suspension member is guided horizontally by the friction reducing member provided on the umbrella frame member. Since it moves, the movement is performed smoothly, whereby the hanging member can be easily moved horizontally without bending and can be lifted in a well-balanced manner flexibly corresponding to building units of different sizes.

[Brief description of drawings]

FIG. 1 is a diagram showing a state in which a building unit is lifted by an umbrella device for a building unit according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a main part of this embodiment.

FIG. 3 is a side view showing a main part of the present embodiment.

FIG. 4 is a perspective view showing a bending prevention device of the present embodiment.

5 is a view taken along line VV in FIG.

[Explanation of symbols]

 1 Umbrella device of building unit 2 Umbrella 3 Chain slinger which is a hanging member 5 Arm member which is an umbrella frame member 10 Bending prevention device of a hanging member 11 Long roll 20 Building unit

Claims (3)

[Claims] 1. A umbrella unit of a building unit is configured by including a suspending member that suspends a building unit that constitutes a unit-type building, and an umbrella that is provided on the suspending member and covers the building unit. Has a plurality of umbrella frame members that extend in a radial direction from the side and can swing in the up-and-down direction with the end portion on the center side as a fulcrum, and these umbrella frame members have a horizontal direction of the hanging member. A bending prevention device for a hanging member in an umbrella device of a building unit, wherein a friction reducing member for guiding movement is provided. 2. The bending prevention device for a hanging member in the umbrella device for a building unit according to claim 1, wherein the hanging member is formed of a chain, and the friction reducing member extends along a longitudinal direction of the umbrella frame member. A building unit, characterized in that it is provided with two long roller members that are parallel to each other and are rotatable, and that the chain is inserted between the two roller members. A bending prevention device for a hanging member in an umbrella device. 3. The bending prevention device for a suspension member in the umbrella device for a building unit according to claim 1, wherein the friction reducing member is provided on one side surface of each umbrella frame member. Device for preventing bending of a hanging member in an umbrella device of a building unit.