JP3349220B2 - Self-elevating jack device and self-elevating method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a self-raising jack device used for a lift-up method in construction and civil engineering and a self-raising method.

[0002]

2. Description of the Related Art At present, with regard to the construction of automatic buildings, with the use of robots for construction, the upper part of the building frame is covered with a large roof, and this is lifted up with a jack, and the construction floor is connected and the construction floor is constructed. Have been proposed and some have been implemented.

[0003] Above all, when the large roof is lifted by a jack in order to have a space for constructing the construction floor, the large roof is received by a support, and the main pillar of the construction floor is set between the lower construction floor and the large roof. See what you do.

The self-raising jack used in the above-described embodiment is configured such that a main body, a reaction force receiving beam, and a load receiving beam provided immediately below the device main body and the reaction force receiving beam are connected to a column having a plurality of pin holes on an outer peripheral portion. And a support jack is provided between the apparatus main body and the reaction force receiving beam. Immediately below the device body and the reaction force receiving beam, a load receiving beam with pin holes is provided, and the pin insertion and pulling out are performed while matching each pin hole with the pin hole of the column alternately up and down. Repeatedly rising.

[0005]

However, in the above-described conventional self-lifting jack, the column is inclined, or the insertion pin is slightly displaced from the right angle of the column hole, so that the load on the pin hole of the reaction force receiving plate is reduced. There is a drawback that the pin hole of the receiving beam does not match and it is difficult to insert the pin. Further, when a load is applied to the pin via the apparatus main body, there is a disadvantage that the pin is difficult to pull out.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned drawbacks of the prior art, and has an object to provide a self-raising jack device and a self-raising jack device capable of improving workability and improving efficiency with a simple structure and mechanism. It is to provide a method.

[0007]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned object, and has as its gist a column having a reaction force piece provided at an outer periphery in a circumferential direction and an axial direction; An apparatus main body mounted on the support so as to be able to move up and down, a reaction force receiving beam positioned below the apparatus main body and mounted on the support so as to be able to move up and down, and extending and contracting between the reaction force receiving beam and the apparatus main body; It has a support jack freely connected and an inner peripheral portion along the shape of the outer peripheral portion of the column, and is located at a lower portion of each of the apparatus main body and the reaction force receiving beam, and is rotatably mounted on the column. And a self-elevating jack device comprising an upper and lower lock plate.

Another aspect of the present invention is a self-elevating method using the self-elevating jack device, wherein a step of unlocking an upper lock plate provided on an upper portion of the main body of the device, and a step of extending a support jack are provided. Raising the apparatus body together with the lock plate, locking the raised upper lock plate, unlocking the lower lock plate provided at the lower part of the reaction force receiving beam, and contracting the support jack to lower the lower part. The self-elevating method includes a step of raising the reaction force receiving beam together with the lock plate and a step of locking the raised lower lock plate.

[0009]

According to the present invention, the apparatus main body and the reaction force receiving beam are fixed to the column by rotating the lock plate provided below the device main body and the reaction force receiving beam to the left and right, that is, unlocking or unlocking the lock plate. Release it. The device body is lifted by releasing the fixation of the device main body, fixing the reaction force receiving beam and extending the support jack, and also fixing the device body and releasing the reaction force receiving beam from the support jack. The contraction causes the reaction force receiving beam to rise.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a self-raising jack device and a self-raising method according to the present invention will be described below with reference to the accompanying drawings, but the present invention is not limited to this.

In FIG. 1, reference numeral 10 denotes a self-raising jack device according to the present invention. The device 10 comprises a device main body 13 provided on a column 12 so as to be able to move up and down, and the column 12 below the device main body 13.
A main part is constituted by a reaction force receiving beam 14 provided so as to be movable up and down and two support jacks 15 provided so as to extend and contract between the apparatus main body 13 and the reaction force receiving beam 14.

The outer periphery of the column 12 is provided at equal intervals in the circumferential direction.
A plurality of C-channels 11 are provided by welding as reaction force pieces at locations and at equal intervals in the axial direction. In addition, besides the C channel 11, various types of convex or concave (reactive force pieces) can be used as the reactive force pieces, and a desired number can be provided.

At the lower part of the apparatus main body 13, a notch 18 is formed in the inner peripheral portion along the outer peripheral shape of the column 12 in order to fix the main body 13 between the C-channels 11 provided in the column 12 in the axial direction. The upper lock plate 16 provided is rotatably provided, and the upper lock plate 16 is rotated by a known hydraulic means such as applying hydraulic pressure with a hose (not shown). A lower lock plate 17 similar to the upper lock plate 16 is provided below the reaction force receiving beam 14.

As shown in FIG. 2 (a), the upper and lower lock plates 16 and 17 have notches 1 provided on the inner peripheral portion thereof.
The upper and lower lock plates 16 and 17 are rotated left and right by hydraulic pressure so that the notch 18 is located between the C channels in the circumferential direction. The main body 13 and the reaction force receiving beam 14 are placed on the column 12 (see FIG. 2B).

Next, the self-elevating method of the present invention will be described with reference to FIGS.
This will be described with reference to FIG.

In the self-elevating method of the present invention, normally, the self-elevating jack device 10 is configured such that the upper and lower lock plates 16 and 17 have C as a reaction force piece as shown in FIG.
It is placed in contact with the top of the channel 11. In self-elevation, first, the support jack 15 is slightly extended (within the margin between the upper and lower C channels) to slightly raise the apparatus main body 13 and the upper lock plate 16, thereby releasing the frictional resistance between the upper lock plate and the C channel. The upper lock plate 16 is turned to the left by hydraulic pressure, and the C channel 11 is inserted into a notch 18 on the inner peripheral portion thereof.
Are brought into a state where the apparatus main body 13 and the upper lock plate 16 can be inserted (b). Again, the support jack 15 is extended to the stroke end to raise the apparatus main body 13 and the upper lock plate 16 (c). Then, the upper lock plate 16 is rotated rightward by hydraulic pressure to be placed on the C channel 11 and locked (d). Next, the support jack 15 is slightly contracted (within the margin between the upper and lower C-channels) to slightly raise the reaction force receiving beam 14 and the lower lock plate 17 to release the mutual resistance, and the lower lock plate 17 is hydraulically moved. Rotate counterclockwise to match the C channel in the notch 18 and
4 and a state in which the lower lock plate 17 can be inserted (e). Again, the support jack 15 is contracted to the stroke end, and the reaction force receiving beam 14 and the lower lock plate 1 are contracted.
7 is raised (f). And the lower lock plate 17
Is rotated rightward by hydraulic pressure to be mounted on the C channel 11 and locked (g). By repeating the above steps (a) to (g), it is possible to ascend to a desired height by itself.

The upper and lower lock plates 16 and 17
Is not limited to the above-described hydraulic means, and other appropriate means such as a motor or a gear drive can be used.

[0018]

According to the self-elevating jack device and the self-elevating method of the present invention, the reaction piece is provided on the column, and the lock plate provided immediately below the device body and the reaction force receiving beam. By easily engaging or disengaging the device main body and the reaction force receiving beam, an object to be lifted such as a large roof can be smoothly lifted.

[Brief description of the drawings]

FIG. 1 is a side view of an embodiment of a self-raising jack device of the present invention.

FIG. 2A is a top view showing a state in which lock plates at upper and lower portions in FIG. 1 are unlocked. FIG. 2B is a top view showing a state where the upper and lower lock plates of FIG. 1 are locked.

FIGS. 3A to 3G are process explanatory diagrams showing a self-elevating method.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Self-elevating jack device 11 C channel (reaction piece) 12 Post 13 Device body 14 Reaction force receiving beam 15 Support jack 16 Upper lock plate 17 Lower lock plate 18 Notch

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-61-51497 (JP, A) JP-A-54-62601 (JP, A) JP-B-46-21417 (JP, B1) (58) Field (Int.Cl. ⁷ , DB name) B66F 1/08

Claims (2)

(57) [Claims] 1. A support having reaction force pieces provided at intervals on an outer peripheral portion in a circumferential direction and an axial direction, a device main body mounted on the support so as to be able to move up and down, and a device positioned below the device main body. A reaction force receiving beam mounted on the column so as to be able to move up and down, a support jack connecting the reaction force receiving beam and the apparatus main body so as to be extendable and contractible, and an inner peripheral portion conforming to the shape of the outer peripheral portion of the column. A self-elevating jack device comprising a rotatable upper and lower lock plate mounted on the support and located at a lower portion of each of the device main body and the reaction force receiving beam. 2. A self-elevating method using the self-elevating jack device, wherein a step of unlocking an upper lock plate provided on an upper part of the main body of the device, a step of extending a support jack and the main body of the device together with the lock plate. Raising the
A step of locking the raised upper lock plate, a step of unlocking the lower lock plate provided below the reaction force receiving beam, and a step of retracting the support jack to raise the reaction force receiving beam together with the lower lock plate. Locking the raised lower lock plate.