JP2549446B2 - Automatic step material manufacturing method - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a method for automatically manufacturing stair materials corresponding to circular stairs and straight stairs of a wooden building, and more specifically, assembling and fixing at a construction site. The present invention relates to an automatic method for manufacturing stair materials in which all the steps for forming the components of the stairs can be automatically performed in a factory so that only the work can be done.

[Problems to be Solved by Prior Art and Invention]

There are two types of stairs, a straight staircase and a surrounding staircase.These staircases are inked at the construction site according to the size of the building, cut, and processed. I try to assemble them as stairs according to the difference. Therefore, in recent years, in order to reduce the number of workings in the field as much as possible, a step material in which a main member is precut in a factory is manufactured. However, in such a conventional method for manufacturing a staircase, all the precut staircase members are aligned on site and dimensioned, and then the staircase material is assembled while appropriately cutting or the like. However, with such pre-cut staircase materials, at most, the side plates are cut to a required size at the factory at most, and partially processed at the factory such as groove processing where the treads and risers of the cut side plates engage. It was a thing. Therefore, when assembling a staircase using the staircase material processed by the conventional manufacturing method, the precut side plate is brought to the site, and after performing alignment at the site, further cutting treatment of mutual connection ends is performed. You have to go and assemble it with treads, risers, etc.

Therefore, when installing a round staircase consisting of a round staircase part and a straight staircase part, in the precut processing of the side plate in the conventional method for manufacturing staircase materials, on-site alignment, and a connection end part according to the alignment etc. Was very difficult to cut, and required considerable skill to assemble the precut side plates, and it was difficult to size such side plates in a factory independently from the building. In particular, since the staircase has a structure in which one end of a tread plate and a riser plate (and a landing plate, if necessary) that normally constitute the staircase part is supported by a pillar, each tread plate, riser plate, and in some cases, a landing strip It is necessary to machine the groove that the plate engages into a pillar and align each end, then dimension the outer side plate and cut the connecting end of each other. It was extremely difficult to assemble.

Therefore, an object of the present invention is to enable a revolving staircase consisting of a revolving staircase part and a straight staircase part to be assembled and fixed at the construction site without any cutting work at the construction site. It is an object of the present invention to provide an automatic method for manufacturing staircase materials that can process all staircase materials that form a staircase as finished parts at a factory.

[Means for solving the problem]

The present invention provides a unitized circular staircase consisting of a circular staircase portion and a lower straight staircase portion and an upper straight staircase portion that are respectively connected to the circular staircase portion.
It is composed of a stairway portion continuously connected to the lower straight staircase portion and a landing portion connecting the stairway portion and the upper straight staircase portion, and an outer side plate is disposed on the outer periphery thereof. An inner side plate is arranged to form a pair with a side plate, and a tread plate and a landing plate are engaged and supported between the outer side plate and the inner side plate. On the inner surface of each side plate,
A groove for engaging and supporting both ends of the tread plate and the landing plate is formed, and the outside connected to each connecting end of the straight side plate in each of the lower straight staircase portion and the upper straight staircase portion. Each connection end of the side plate and each connection end of the inner side plate, the center of the module of the building in the state where the above-mentioned staircase is assembled (module means the basic unit of architectural design, the center of the module is An automatic manufacturing method of a staircase member that constitutes a circular staircase that is vertically formed so as to coincide with the basic line of the basic unit), and provides the building structure information of the staircase member based on a design drawing of the building. Input the above building structure information to the stair material CPU and enter the stair material CPU
And the step information is converted into the processing information of the step material, and the converted processing information is input to the step material processing control CPU, and the step material processing machine is controlled by the step material processing control CPU based on the input processing information. By controlling the drive of the wood, it is possible to automatically cut and process the wood to manufacture the step material according to the step material of the above-mentioned design drawing, and to provide the above-mentioned object by providing an automatic manufacturing method of the step material. It has been achieved.

[Action]

According to the present invention, when the building structure information of the stair material is input to the stair material CPU from the design drawing of the building such as the wooden house, the stair material C
When the PU converts the building structure information to the processing information of the staircase material and inputs the converted processing information to the staircase material processing control CPU, the staircase material processing control CPU drives the staircase material processing machine based on the processing information. By controlling and driving the stair material processing machine, wood can be cut and processed in accordance with the stair material described in the design drawing, and automatically manufactured as a finished product of the stair material.

〔Example〕

The present invention will be described below with reference to FIGS. 1 to 10.
In each figure, FIG. 1 is a system configuration diagram showing a step material processing apparatus equipped with a computer and a step material processing machine for automatically processing step materials, and FIG. 2 is a flow chart showing the method of the present invention. .

First, a system configuration of a step material processing apparatus equipped with a computer and a step material processing machine, which is preferably used when carrying out the method of the present invention, will be described.

As shown in FIG. 1, the apparatus for processing stairs used in carrying out the method of the present invention is a computer 100 and is pre-cut under the control of the computer 100 by being driven based on a command from the computer 100. A step material processing device 200 for performing processing, groove processing and the like is provided.

Thus, the computer 100 relates to the staircase input device 120 for inputting building information regarding the staircase based on the design drawing 020 of the building such as a wooden house whose specifications are fixed by the CAD system 010, and the staircase inputted. Staircase CPU 130 that converts building information into processing information and staircase material interface
140, and the processing information converted by the staircase material CPU 130 is transmitted to the staircase material processing apparatus 200 installed in the factory via a communication line such as an optical fiber.

In addition, CAD system 010 is a CAD
Connected via interface 110, staircase CPU130
Is connected so as to transmit processing information to the staircase material processing control personal computer 210 via the staircase material interface 140.

Then, the CAD system 010 is a system that supports work such as floor plan and structural design when designing a building such as a wooden custom-built house, and when the specifications of the house designed by the CAD system 010 are confirmed, Building structure information of the house is constructed based on the confirmed design drawing 020, and the staircase information input based on the constructed building structure information is converted into processing information by the staircase material CPU 130 as described above, and converted. The processed information is the step material data.
The hard disk (HD) or the floppy disk (FD) is stored as the processing data 160 and the processing data 160, and is also stored in the parts specification file 170. Then, the processing information of the staircase material temporarily stored in the parts specification file 170 is stored in the staircase material processing control CPU of the factory through the staircase material CPU 130, the staircase material interface 140, and the communication line.
The data is transmitted to the (staircase material processing control personal computer) 210 and temporarily stored in a storage medium such as a RAM of the staircase material processing control personal computer 210. Further, the machining command corresponding to each component is stored in the machining command file 180, and the component label corresponding to each component is stored in the component label file 190.

The processing instruction of the processing instruction file 170 and the part label of the part label file 190 are configured to be transmitted to the step material processing control personal computer 210 via the step material CPU 130, the step material interface 140, and the communication line.

On the other hand, in the factory, the operator has a processing instruction file 17
When a processing command based on 0 is input to the staircase material processing control personal computer 210, based on the instruction command, the staircase material processing machine 220 is driven and controlled in accordance with the processing information stored in the storage medium, and the processing is input. It is designed to automatically perform pre-cut processing, groove processing, etc. on wood from stair materials.

And, the processed staircase material has a part label file.
Based on the information of 190, it is configured to sequentially attach a component management symbol and mark the mounting position, and is used for management such as packing and mounting.

The computer 100 used in the method of the present invention is also configured to collectively manage the packing, accumulation, delivery, and the like of stair materials.

Next, the method of the present invention will be described with reference to the flowchart shown in FIG.

First, input staircase information from the design drawing 020 of the wooden house confirmed by the CAD system 010 at the computer center 1
Stair information such as specifications and quantity of each stair material according to 20
When input to CPU130 (step S-1), staircase material CPU130
Then, the staircase material information is generated as the processing information of the staircase material (step S-2), and the generated processing information is once processed information 16
It is stored as 0 in the hard disk or the floppy disk in the computer 100 (step S-3). Further, the processing information is transmitted from the staircase material CPU 130 to the staircase material processing control personal computer 210 of the factory through the staircase material interface 140 and the communication line and stored in the storage medium (step S-4).

At the factory, the operator prepares wood for processing (S-
5), the processing lumber is installed in the line so as to be processed by the step material processing machine 220 (step S-6). Next, when a processing command based on the processing instruction file 180 is input to the staircase material processing control personal computer 210, the staircase material processing control personal computer 210
The following processing is performed according to the processing information already stored in the. That is, it is judged whether or not the processing information is related to the side plate (step S-7), and if it is judged that the processing information is related to the side plate, after performing the digging processing such as a groove based on the processing information ( In step S-8), a screw hole is processed (step S-9), and subsequently, based on the processing information, the end part such as the connecting end part of the side plate is cut and the side plate is processed (step S-9). S-10), and further parts label file 19
Based on 0, markings such as a part control symbol and a mounting position are made on the side plate (step S-11).

When it is determined in step S-7 that the processing information is not related to the side plate, it is determined that the processing information is related to the tread plate other than the side plate, and the process proceeds to step S-10, after which the end part processing according to the shape is performed. (Step S-10), marking on each step material (Step S-11).

Therefore, according to one embodiment of the method of the present invention, if the specifications of the stairs used for the custom wooden house are fixed, the pre-cut processing, the groove processing, etc. of the stairs are automatically performed, and the stairs required for the desired custom-built house are obtained. The material can be automatically factory-produced. Moreover, waste materials for processing wood are eliminated as much as possible to reduce waste, and all stair materials are marked with parts management numbers, etc., and only the required quantity of stair materials needs to be packed and transported to the site based on the marking. As in the past, it is possible to improve the yield without the need to prepare extra timber, and at the construction site, it is sufficient to assemble the stairs carried in based on each part management number, eliminating the shortage of skilled workers. can do.

Furthermore, since all the stair materials can be completely made into parts by pre-cutting, grooving, etc., there is no need for cutting work at high places at the construction site, improving the safety of construction work,
Further, it is possible to reduce noise and dust generation associated with the cutting work, and to reduce industrial waste generation.

Next, a third staircase manufactured by the method of the present invention is
A description will be given based on FIGS. In each figure, FIG. 3 is a partial perspective view showing a staircase manufactured by an embodiment of the method of the present invention, and FIG. 4 is a plan view showing the entire staircase shown in FIG. 3, and FIG. (A), (b), (c) is a figure which respectively shows the staircase part of the turning staircase part shown in FIG. 4, the same figure (a) is the top view, and the same figure (b) and (c) is respectively. Front view showing the inner surface of the outer side plate, FIG. 6 (a), (b)
4A and 4B are views showing the lowermost one of the inner side plates shown in FIG. 4, respectively. FIG. 7A is a front view showing the inner surface thereof, and FIG.
Is a side view thereof, and FIGS. 7 (a), (b), and (c) are views showing the landing part of the staircase section shown in FIG. 4, respectively, and FIGS. 5 (a), (b), (). Figure corresponding to c), 8th
6 (a) and 6 (b) are views corresponding to FIGS. 6 (a) and 6 (b), respectively, showing one of the inner stages of the inner side plates shown in FIG. A front view showing the inner surface of the remaining uppermost one of the rotating side plates, FIGS. 10 (a) and 10 (b) are views showing the straight staircase portion shown in FIG. 4, and FIG. A plan view and the same figure (b) are front views showing the inner surface of the straight side plate.

As shown in FIG. 3 and FIG. 4, the round staircase manufactured by one embodiment of the method of the present invention has a lower straight staircase section 2 and an upper straight staircase section 2 which are respectively connected to the round staircase section 1 so as to sandwich the landing. It is composed of the straight staircase portion 3, is formed in a U shape in a plan view, and is configured to rise in the direction of the arrow in FIG.

Thus, as is clear from FIG. 4, the above-described round staircase portion 1 connects the staircase portion 11 connected to the lower straight staircase portion 2 to the staircase portion 11 and the upper straight staircase portion 3. Do landing part 12
And is formed by changing the traveling direction by 180 ° from the lower straight staircase portion 2 to the upper straight staircase portion 3. The turning staircase portion 1 is surrounded in a U shape by an outer turning side plate 13 arranged on the outer periphery thereof, and the outer turning side plate 13 is located at the center position thereof.
As described later, the inner side plate 14 is provided for engaging and supporting the step and the landing plate respectively. The inner side plate 14
Is formed as a substantially columnar member having a U-shaped cross section in the horizontal direction corresponding to the outer peripheral side plate 13.

In addition, a pair of straight side plates 21, 21 forming the lower straight staircase portion 2 is provided at the lower end of each of the outer side plate 13 and the inner side plate 14.
, And a pair of straight side plates 31, 31 constituting the upper straight staircase portion 3 are connected to the end portions of the side plates 13, 14 on the upper tier side, and these straight side plates 21, 21, 31 and 31 are connected. Supports the steps of the respective straight staircase portions 2 and 3.

As shown in FIGS. 4 and 5, the staircase portion 11 is surrounded by
The steps are formed to change the direction of travel by 90 °,
The steps are the same as the conventional steps 111A continuous from the lower step,
111B and 111C, and each riser plate 112 shown by the broken line in the figure.
It is composed of A, 112B and 112C. And each tread 111
Both ends of A, 111B, 111C and each of the riser plates 112A, 112B, 112C are engaged and supported by respective grooves formed in the outer rotation side plate members 131, 132 and the inner rotation side plate 14, which will be described later.

That is, the outer side plate member 13 on the lower side is formed with two lateral grooves 131A and 131B which are horizontal in the assembled state and are separated from each other by a kicking height, and the lower stepped plate is formed in the groove 131A.
One end of 111A is adapted to be engaged with one end of the middle step plate 111B fitted into the upper lateral groove 131B. The lower connecting end P of the lower outer rotation side plate member 131 is formed vertically along one end of the riser plate 112A of the lowermost step in the assembled state, and is formed on the inner surface of the end portion thereof. A vertical groove 131C with which one end of the riser plate 112A engages is formed along the connection end P, and one end of the riser plate 112A is sandwiched between the vertical groove 131C and the connection end P of the straight side plate 21 of the lower straight staircase portion 2. Has been done. In addition, the lower outer rotation side plate member 131 has two lateral grooves 131A and 131B.
And a vertical groove 131D reaching the lower edge is formed.
A middle riser plate 112B is inserted into 1D from the lower side edge and engaged.

Further, two lateral grooves 132A, 132B which are horizontal in the assembled state on the outer side plate member 132 on the upper side are formed so as to be spaced apart from each other by a lift height, and the lower lateral groove 132A has a middle step plate.
One end of 111B is placed in the upper lateral groove 132B, and the top tread 11
One end of 1C is fitted in and engaged with each other. Then, the lateral groove 132A, 1
A vertical groove 132C that connects the 32B and reaches the lower side edge is formed, and the uppermost riser plate 112C is inserted into and engaged with the vertical groove 132C. The lateral grooves 132 are formed on the inner surface of the connection end P of the outer peripheral side plate member 132 with the landing portion 12.
A short lateral groove 132D parallel to A and 132B is formed,
A tip corner portion of a landing plate 121, which will be described later, is fitted and engaged. Further, the lateral groove 132D is formed with a predetermined dimension from the upper end of the connecting end P. In other words, the height of the connecting end formed on the upper side of the landing plate 121 engaging with the lateral groove 132D is formed to be a predetermined height.

On the other hand, the inner rotation side plate 14 is the outer rotation side plate member 131, 132.
And inner side plate members 141 and 142 corresponding to (see FIGS. 6 and 8).
(See the drawing), the inner side plate member 141, 142 to the tread 111A, 11
The other ends of 1B, 111C and risers 112A, 112A, 112C are engaged. That is, the inner side plate member 141 is shown in FIG.
As shown in FIG. 2, two lateral grooves 141A and 141B which are horizontal in the assembled state are formed at a distance of a kick height from each other, and the other end of the lowermost step plate 111A is also formed in the lower groove 141A.
The other ends of the middle step plates 111B are fitted and engaged with the upper lateral grooves 141B, respectively. Further, a vertical groove 141C is formed in the inner side plate member 141 in the vicinity of the lower end thereof and along the side edge of the lower straight staircase portion 2 side, and the other end of the lowermost riser plate 112A is described above. As described above, the other end of the riser plate 112A is sandwiched by the connecting end P of the straight side plate 21 of the lower straight staircase portion 2 as described above. Also, the inner side plate member 14
1, a vertical groove 141D that connects the two grooves 141A and 141B and reaches the lower end is formed parallel to the vertical groove 141C, and the middle riser plate 112B is fitted into the vertical groove 141D. It is designed to engage. Further, the lateral groove 141B is formed so as to reach the end surface on the upper stage side of the inner side plate member 141,
The middle step plate 111B is adapted to engage with the rectangular notch. Further, a lateral groove 141E corresponding to the short groove 132D of the outer peripheral side plate member 132 is formed above the lateral groove 141B on the end face, and the tip end of the uppermost step plate 111C is fitted and engaged with the lateral groove 141E. It is done like this.

Further, in the landing section 12, as shown in FIGS. 4 and 7 (a), a landing board 121 is surrounded by outer side plate members 133 and 134. The inner surface of each of the outer peripheral side plate members 133 and 134 has a seventh
As shown in FIGS. (B) and (c), one lateral groove 133A, 134A that is horizontal in the assembled state is formed, and the outer end of the landing plate 121 is fitted and engaged. . Further, on the inner surface of the upper end of the outer peripheral side plate member 134, a short mechanism in which the corner portion of the tip of the lowermost step plate 32A forming the straight staircase part 3 following the landing part 12 is fitted above the lateral groove 134A. 134B is formed. The lateral groove 134B corresponds to the step portion 11
Like the outer rotation side plate member 132, it is formed at a position spaced from the upper end of the connection end of the outer rotation side plate member 134 by a certain dimension,
These two have the same size.

On the other hand, the inner rotation side plate 14 is the outer rotation side plate member 132, 133.
And inner side plate members 142, 143 corresponding to
(See FIG. 9), the other end of the landing plate 121 is engaged with the inner side plate members 142 and 143. That is, the inner side plate member 142
As shown in FIGS. 8 (a) and (b), the inner surface of the three horizontal grooves 142A, 142B and 142C in the assembled state are shown in FIG.
Are separated from each other by the rise height, and the uppermost groove
The rectangular notch formed at the inner corner of the landing board 121 is engaged with 142C, and the other two grooves 142A and 142B are the middle tread 111B and the top tread of the stair part 11. 111C are adapted to engage with each other. Further, of the inner side plate member 142, the vertical groove 142D reaching the lower end from the horizontal groove 142B is formed on the inner surface of the connection end with the inner side plate member 141, and the uppermost kick of the step portion 11 is formed. The insert plate 112C is inserted from the lower end and engaged. Further, on the inner surface of the inner side plate member 142, a vertical groove 142E reaching the lower end from the uppermost groove 142C is formed in parallel with the vertical groove 142D, and the riser plate 122 of the landing plate 121 is inserted from the lower end. It is designed to be engaged with each other. As is apparent from FIG. 4, the landing plate 121 also engages with the end face of the inner rotation side plate member 142 and is further connected to the other inner rotation side plate member 143 shown in FIG. Rectangular notch 121A (see FIG. 7 (a)) so as to also engage with the formed lateral groove 143A (see FIG. 9).
Are formed. As shown in FIG. 9, a groove 143B located above the lateral groove 143A is formed in the inner side plate member 143, and constitutes a lowermost step of the upper straight staircase portion 3 following the circular staircase portion 1. The corners of the tip of the tread 32A are adapted to engage with each other.

As is clear from the above description, the staircase section 1 is composed of a staircase section 11 and a landing section 12, and each tread 111
A, 111B, 111C, landing board 121 and riser boards 112A, 112B, 11
2C and 122 are engaged and supported by grooves provided in the outer rotation side plate 13 and the inner rotation side plate 14, respectively. Further, the step portion 11 and the landing portion 12 are arranged so as to coincide with the surface of the riser plate 122, and the surface coincides with the center of the module of the building. The same applies to each connection end described below. It is configured.

Next, the straight staircase portions 2 and 3 that are connected by the above-described round staircase portion 1 will be described. Since the upper straight staircase portion 3 is configured according to the lower straight staircase portion 2, only the lower straight staircase portion 2 will be described below with reference to FIGS. 10 (a) and 10 (b).

As shown in FIG. 10 (a), the straight staircase portion 2 includes a pair of straight side plates 21, 21 connected to the outer side plate 13 and the inner side plate 14.
And the tread 22 that is engaged with and supported by the groove formed in these
It is composed of A, 22B, 22C, 22D and riser plates 23A, 23B, 23C, 23D. The pair of straight side plates 21, 21 are the outer side plates.
The connection end is machined to be vertical in the assembled state so that it can be connected to the connection end of the inner side plate 13 and the inner side plate 14. Then, the lowermost riser plate 11 of the stair part 11 engaging with the connection ends of the outer side plate 13 and the inner side plate 14 respectively.
2A is sandwiched by the connecting ends of the straight side plates 21 and 21, and as described above, the connecting end and the surface of the riser plate 112A coincide with each other, and also coincide with the center of the module of the building.

Since the pair of straight side plates 21 and 21 are symmetrical, the description of one straight side plate 21 will be explained below.
As shown in FIG. 3B, a plurality of horizontal grooves 21A that are horizontal in the assembled state are formed according to the number of steps, and one end of the tread 22 is fitted into and engaged with each of the horizontal grooves 21A. There is. Further, on the inner surface of the connecting end of the straight side plate 21, a short lateral groove 21B positioned further above the uppermost lateral groove 21A is provided.
Is formed so that the corner portion of the tip of the lowermost step plate 111A of the staircase 1 is engaged. Further, the starting end of the straight side plate 21 is formed in parallel with the connecting end, and a vertical groove 21C with which the lowermost stepping plate 23 is engaged is formed on the inner surface of the starting end. In addition, the upper straight staircase part 3
Needless to say, the dimensions of the treads and risers are adjusted so that the connection end with the upper floor can be connected to the floor of the upper floor.

As described above, the swirl staircase manufactured by the embodiment of the method of the present invention is provided with the inner turning side plate 14, which is a support which is not existent in the past, and the outer turning side plate constituting the turning staircase 1.
13, for each unit of the inner side plate 14 and the straight side plates 21, 31, the mutual connection end is made vertical along the riser plate at the position of the riser plate, and the tip of the next step plate is connected to the connection end of each side plate. Since there is a certain relationship that the corners will have a groove to fit in, if the height of the upper floor of a building such as a house is decided, the staircase will be unitized according to the above relationship based on this height. The patterning of the units allows them to be designed independently of the building, and this embodiment allows each step material to be manufactured completely automatically as a finished part.
That is, since the stairs made of stair material as a finished part manufactured according to the present embodiment does not require actual measurement on the skeleton side, there is no need to wait for completion of the finishing floors on the upper and lower floors as in the conventional case, and Alternatively, the stairs can be installed immediately thereafter. Therefore, according to the staircase material manufactured according to the embodiment of the present embodiment, since the staircase material can be completely processed in the factory, it is possible to rationalize the workability and eliminate the processing at the installation site of the staircase at all. It is possible to achieve simplification of construction technology.

In addition, the straight staircase portions 2 and 3 can be entirely processed in the factory in the same manner as the revolving staircase portion 1 and can be assembled and fixed only on site. Of course, the staircase material manufactured by the method of this embodiment can be assembled at the factory and mainly fixed in the field to complete the mounting work.

In order to machine the staircase by the automatic staircase manufacturing method of the present invention, a dedicated program is used to determine the numerical values (set type, basic module size, floor height, number of steps, etc.) required for the computer. It goes without saying that the machining data of all the parts can be immediately generated and complete part machining can be performed simply by inputting based on the use of the stairs.

〔The invention's effect〕

According to the automatic manufacturing method of staircase material of the present invention, the revolving staircase including the revolving staircase portion and the straight staircase portion can be assembled and fixed at the construction site without any cutting work at the construction site. As possible, all the stair materials that make up the staircase can be machined as finished parts at the factory.

[Brief description of drawings]

FIG. 1 is a system configuration diagram showing a step material processing apparatus equipped with a computer and a step material processing machine for automatically processing step materials, and FIG. 2 is a flow chart showing steps in carrying out the method of the present invention. FIG. 4 is a partial perspective view showing a staircase manufactured by an embodiment of the method of the present invention, and FIG.
FIG. 5 (a) is a plan view showing the entire staircase shown in FIG.
(B) and (c) are views showing the staircase portion of the staircase part shown in FIG. 4, respectively. (A) of the figure is a plan view thereof, and (b) and (c) of FIG. The front view showing the inner surface, FIGS. 6 (a) and 6 (b) are views showing the lowermost one of the inner side plates shown in FIG. 4, and FIG. 6 (a) is a front view showing the inner surface thereof. FIG. 7B is a side view thereof, and FIGS. 7A, 7B, and 7C are views showing the landing part of the staircase section shown in FIG. 4, respectively, and FIG. 5A and FIG.
Drawings corresponding to (b) and (c), and Figures 8 (a) and (b) respectively show a middle one of the inner side plates shown in Figure 4 and a sixth.
FIGS. 9A and 9B correspond to FIGS. 9A and 9B. FIG. 9 is a front view showing the inner surface of one of the uppermost remaining inner side plates shown in FIG. 4, and FIGS. ) Are views showing the straight staircase portion shown in FIG. 4, respectively, and FIG.
[Fig. 4] is a front view showing the inner surface of the straight side plate. 1; Circular staircase 2, 3; Straight staircase part 13; External sideboard, 14; Inner sideboard 21, 31; Direct sideboard 010; CAD system 100; Computer 120; Staircase information input 130; Staircase material CPU 150; Staircase material Data (FD or HD) 200; Step material processing machine 210; Control PC for step material processing 220; Step material processing machine

Claims (1)

(57) [Claims] 1. A unitized revolving staircase comprising a revolving staircase part and a lower straight staircase part and an upper straight staircase part which are respectively connected to the revolving staircase part, wherein the revolving staircase part comprises:
It is composed of a stairway portion continuously connected to the lower straight staircase portion and a landing portion connecting the stairway portion and the upper straight staircase portion, and an outer side plate is disposed on the outer periphery thereof. An inner side plate is arranged to form a pair with a side plate, and a tread plate and a landing plate are engaged and supported between the outer side plate and the inner side plate. On the inner surface of each side plate,
A groove for engaging and supporting both ends of the tread plate and the landing plate is formed, and the groove is continuously provided to each connecting end of the straight side plate in each of the lower straight staircase portion and the upper straight staircase portion. The stairs forming a staircase in which each connection end of the outer side plate and each connection end of the inner side plate are vertically formed so as to coincide with the center of the module of the building in a state where the above-mentioned staircase is assembled. An automatic manufacturing method of material, inputting the building structure information of the stair material to the stair material CPU based on the design drawing of the building, and inputting the building structure information to the stair material CPU, processing information of the stair material. Along with converting into, by inputting the converted processing information to the step material processing control CPU, by driving control of the step material processing machine by the step material processing control CPU based on the input processing information, Automatically cuts and processes wood An automatic method for manufacturing a staircase material, characterized in that it is manufactured as a staircase material conforming to the staircase material in the design drawing.