JP2665943B2 - Construction method of building stairs and supporting column moving device - Google Patents

Description

Description: FIELD OF THE INVENTION The present invention relates to a method for constructing a staircase for a building for sequentially constructing a staircase of a building, and an apparatus for moving a support column used in the method for constructing the staircase. It is about.

(Conventional technology) Conventionally, as a method of constructing a staircase prior to a building, two columns are installed upright at a predetermined interval at a stair construction site, and frame beams are interposed between the columns at predetermined vertical intervals. After installing, the center part of the supporting beam supporting the upper end or the lower end of the stairs is horizontally installed on each of the columns, and then a tensile force is applied between the frame beams and the two columns and between the supporting beams. It has been proposed to adjust the distance between both ends of each support beam and the floor surface or between the support beams and to correct the outer shape of all the supporting members normally (Japanese Patent Publication No. 58-36142). Further, the stair members and other materials were all lifted using a crane.

(Problems to be Solved by the Invention) In the above-mentioned conventional construction method, although the work connected with the building is not required, a large number of members are required for self-reliance and stairs of a high-rise or super-high-rise building are required. In the case of (1), the assembling of the stair-building support material becomes a high-rise or super-high-rise building, requiring a large amount of materials and labor.

Further, the stair building support and the stair members are both suspended by using a large crane, but there is a problem that the construction method cannot be adopted without a crane. In the conventional method of simultaneous construction with a building, there are a number of problems, such as the need to temporarily build a scaffold for an upper floor in the field work, the demand for accuracy by simultaneous construction of stairs and floors, or the need for special technology. was there. Accordingly, the applicant has previously made a proposal to solve the above problem (Japanese Patent Application No. 63-63).
111978), there was a problem that the movement of the supporting column could not be motorized yet.

(Means for Solving the Problems) However, the present invention has solved all of the conventional problems by making it possible to sequentially move the support pillar or the guide pillar by utilizing the existing stair support pillar or the guide pillar. .

That is, according to the present invention, the support columns are erected at predetermined intervals at the stair construction position, the support columns are fixed to the existing floor and the existing stairs, and the stair members for at least one floor are arranged along the support columns at the existing stairs. After arranging in a row, a floor is constructed corresponding to the new stairs, and then the constraint between the support pillar and the stairs is released, and the support pillar is moved upward by at least one step length, The new stairs and support columns are fixed. Next, a construction method of a building staircase in which a staircase is constructed sequentially by repeating the above-mentioned operation. The support column is moved by using a transport device mounted on the guide column, or by moving the guide column using the support column. Furthermore,
The movement of the support column is a device in which a pinion of a driving device is engaged with a rack provided on the support column.

Next, the apparatus of the present invention is provided on one side of a support column which can be arranged at a stair building position to fix stair members for at least one floor.
This is a support column moving device in which a rack is provided along the support column, and a pinion interlocking with power is engaged with the rack. In another device, a guide column with a rack is installed in parallel with a support column that can be arranged at a stair construction position and can fix a stair member for at least one floor, and a common moving frame is provided for the support column and the guide column. A supporting column moving device in which a fixing device for fixing to a supporting column is attached to one side of the moving frame, and a pinion that meshes with a rack provided on the guide column is installed at the other end, and a driving device is connected to the pinion. It is. The number of the support columns is two or three.

As described above, the support columns are sequentially moved by power. At that time, the driving device is automatically lifted, and the supporting column is moved accordingly (the guiding column is required), or the driving device may be carried manually. The former uses the supporting column as the guiding column. Although it moves, the drive device automatically moves, and in the latter case, the drive device (motor and pinion, etc.) must be moved manually, but is appropriately selected according to the situation at the site.

(Operation) In other words, according to the present invention, since the support pillars are automatically moved sequentially, the support pillars have sufficient strength, and there is no danger of causing difficulty in operation even when using relatively heavy components. , The construction work can proceed smoothly.

In addition, since the rack and the pinion are used as main parts of the moving device, both safety and moving accuracy are high.

(Embodiment 1) Next, the present invention will be described based on an embodiment shown in FIGS. 1 to 4. FIG.

The support pillars 1, 2a, 2b are erected at intervals where stairs can be installed. The support column 1 is fixed to floor cross members 5a, 5b fixed to at least two floors 4a, 4b, respectively. In addition, the floor sides of the step members 3a and 3b are fixed to the floor cross members 5a and 5b, respectively. The support column 2a,
2b, landing members 6a, 6 connected to the stair members 3a, 3b
b, 6c are fixed to the horizontal wall 7a. In addition, the landing member 6b is supported by a support rod 8 erected from the floor.

Next, the driving machines 9a, 9b, 9c are installed on the floor 4a and the landing 6a, and the pinions 10 of the driving machines 9a, 9b, 9c and the support pillars 1, 2
The a and 2b racks 11 are engaged (shown in FIGS. 1 and 3). Next, the fixing of the support columns 1, 2a and 2b and the above-mentioned components is released. Then, when the driving machines 9a, 9b, 9c are started and rotated at the same speed, the support columns 1, 2a, 2b rise at a predetermined speed as indicated by arrows 12, 13 in FIG. Then, if the support column rises to the position shown by the chain line in FIG. 1, the support column 1 and the floors 4a, 4b
And the supporting columns 2a, 2b and the landings 6a, 6b.

Next, beams 14a, 1 connecting the upper ends of the support columns 1, 2a, 2b
The wire 17 is hung using the pulley 16 provided on the connecting member 15 of 4b, the lower end of the wire 17 is connected to the step members 3d and 3e, and the wire 17 is hung as shown by the arrow 18, and the stair member is To 3b,
Pull up from the position above 3c to the positions of 3d and 3e as shown by arrow 19.

After this, the floor 4c is constructed and the landing 6c is temporarily supported. When the supporting rod 1 is fixed to the floor cross members 5a and 5b, the landing is fixed and the landing 6a is fixed to the supporting columns 2a and 2b. Solve. Then, the drivers 9a, 9b, 9c are moved onto the floor 4b and the landing 6b. Similarly, the driving devices 9a, 9b, 9c are started to raise the support columns. By repeating the above operation, stairs up to the required height can be sequentially constructed. In the above, in order to raise the support column sequentially, a certain length is sufficient,
Materials used can be reduced.

In addition, any of the above driving machines can be manually moved using stairs.

Embodiment 2 Next, another embodiment of the present invention will be described with reference to FIGS.

In this embodiment, a support column and a guide column are arranged side by side with respect to the support column of the first embodiment, and the driving device automatically moves along with the support column along the guide column. Therefore, when the moving frame and the support column are hung and the pinion is rotated with the support column fixed, the guide column is raised, and when the pinion is rotated with the guide column fixed, the support column and the drive unit are integrated. Will be moved to.

The support columns 1 and 2 are erected at an interval where the stairs can be provided. The support column 1 is fixed to floor cross members 5a, 5b, 5c fixed to three floors 4a, 4b, 4c, respectively. Further, the floor sides of the step members 3a, 3b, 3c, 3d, 3e are fixed to the floor cross members 5a, 5b, 5c, respectively. The support columns 2 are fixed to the horizontal transverse rods 7a, 7b, 7c of the landing members 6a, 6b connected to the landings of the stair members 3a, 3b, 3c, 3d, 3e. Further, the landing member 6c is supported by a support rod 8. The supporting columns 1 and 2 are provided with guide columns 20 and 21 in parallel. The supporting columns 1 and 2 and the guiding columns 20 and 21 are fitted with moving frames 22a and 22b, respectively. 2 are fixed by mounting bolts 23a and 23b. On the other hand, moving frames 22a, 2
2b and guide columns 20, 21 are guide rollers 24a, 24b and pinion
25 and movably mounted. Therefore, when the pinion 25 is rotated while the moving frames 22a and 22b are fixed via the racks 28 with the support columns 1 and 2, the support columns 1 and 2
As shown in FIG. 5, with the rotation of 25, along with the moving frames 22a and 22b.
Rises like 26. When the support columns 1 and 2 are fixed to the slab, the guide columns 20 and 21 are in a free state, and the pinion 25 is rotated, the guide columns 20 and 21 can be raised as shown by arrow 27 in FIG. it can. By alternately lifting the support columns 1 and 2 and the guide columns 20 and 21 in this way, a next-step staircase can be newly installed above the general staircase. In the figure 29
Is a brake, and 30 is a connection.

According to the embodiment, for the heaviest member of the material used in the construction of the stairs, as a result of lifting using the power of the driving machine, the worker is released from heavy labor,
Work can be facilitated.

(Effects of the Invention) According to the present invention, since the support column or the support column and the guide column are lifted by power, there are various effects such as streamlining work, improving efficiency, and enhancing work safety. Further, according to the apparatus of the present invention, since the support columns and the like are raised by the rack and the pinion, the lifting speed and the lifting amount can be freely adjusted.

[Brief description of the drawings]

FIG. 1 is a partial front view of an embodiment of the present invention, FIG. 2 is a plan view of the same, FIG. 3 is a partially enlarged front view showing a relationship between a driving device and a support column, and FIG. Part enlarged plan view,
FIG. 5 is a partial front view of another embodiment, FIG. 6 is an enlarged view of a part showing the relationship between the guide column and the moving frame, and FIG. 7 is a partially enlarged plan view of the same. . 1, 2a, 2b Support pillars 3a, 3b Stair members 4a, 4b, 4c Floors 5a, 5b Floor cross members 6a, 6b, 6c Landing members

Claims (6)

(57) [Claims] 1. A support pillar is erected at a stair construction position at a predetermined interval, said support pillar is fixed to an existing floor and an existing stair, and a stair member for at least one floor is provided along said support pillar. After that, build a floor corresponding to the new stairs, then release the constraint between the support pillar and the stairs,
After moving the support column upward by at least one step, the new step and the support column are fixed. A method for constructing a staircase for a building, characterized by constructing a staircase sequentially by repeating the above operation 2. The method according to claim 1, wherein the supporting column is moved by using a transfer device mounted on the guiding column. 3. The method for constructing a staircase for a building according to claim 1, wherein the supporting column is moved by using a device for engaging a pinion of a driving machine with a rack provided on the supporting column. 4. A rack is provided along one side of a support post on which a stair member for at least one floor can be fixed by being disposed at a stair construction position, and a pinion interlocked with power is bitten on the rack. Combined support column moving device 5. A guide post with a rack is installed in parallel on a support post which is arranged at a stair construction position and can fix a stair member for at least one floor, and a common moving frame is provided for the support post and the guide post. Attaching, installing a fixing device with the support column on one side of the moving frame, erection of a pinion engaging with a rack provided on the guide column on the other side, and connecting a driving device to the pinion. Characteristic support column moving device 6. The support column moving device according to claim 4, wherein the number of the support columns is two or three.