JP3059660B2 - Round staircase - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a round staircase of a wooden building, and more particularly, to a structural member (hereinafter, also referred to as a staircase member), particularly an outer side plate of the staircase material, which can be easily used in a factory. It relates to a round staircase that can be manufactured automatically.

[0002]

2. Description of the Related Art Stairs include straight stairs and turning stairs. Both of these stairs are inked at the construction site after inking wood in accordance with the frame size.
It is cut and processed, and the processed parts are assembled as stairs according to the height difference between the upper floor and the lower floor. For this reason, recently, in order to minimize the on-site processing, the main constituent members (step materials) are precut at a factory. However, in such a conventional round staircase, all the precut staircase materials are aligned at the site and dimensioned, and then the staircase materials are assembled while appropriately performing processing such as cutting. In such precut stairs, at most the side plate is cut to the required dimensions at the factory, and the cut side plate is partially processed at the factory, such as groove processing where the tread and riser are engaged. there were. Therefore, when assembling the stairs using the stairs processed by the conventional manufacturing method, as shown in FIG. 10, the precut side plates 131 ', 21' are brought to the site and connected to the side plates 131 ', 21'. After aligning the connection ends of the 21 ′ with each other at the site, cutting processing of the connection ends and groove processing of the side plates 131 ′ and 21 ′ are further performed to perform the tread 1
It must be assembled with 11A ', 111B', riser plate 112B ', etc.

[0003] Therefore, when a round staircase including a round staircase section and a straight staircase section is installed, it is very difficult to align the site and cut a connection end or the like in accordance with the alignment, and the precut is performed. Assembling the side plates requires considerable skill, and it has been difficult to dimension such side plates in a factory independently of the building. In particular, since the turning stairs have a structure in which one end of a tread plate and a riser plate (or a landing plate if necessary) which constitutes a normal staircase portion is supported by a pillar, each tread plate, a riser plate, and in some cases, a landing hall It is necessary to process the groove to be engaged with the plate into a pillar and align each end, then size the outer side plate and cut the connecting end of each other. Was extremely difficult to assemble.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a turning staircase that can easily and automatically manufacture a component member (step material), in particular, an outer side plate of the stair material in a factory.

[0005]

According to the present invention, there is provided a turning staircase comprising a turning staircase portion and a lower straight staircase portion and an upper straight staircase portion connected to the turning staircase portion, respectively. consists of a landing portion for communicating the straight stair portion of contiguously stair portion and said stepped portion and said upwardly straight staircase portion of the lower, are arranged outer circumference side plates on their outer periphery, said Connection end of the upper end of the straight side plate in the lower straight staircase
Is connected to the connection end of the lower end of
The lower end of the straight side plate at the upper straight staircase.
The connecting end is one connecting end of the outer side plate in the landing area.
At these connection ends and at the stairs
At the connection between the outer side plate and the outer side plate in the landing area
Each of the connection ends in the center of the building module (the module
Refers to the basic unit of architectural design.
The above object has been achieved by providing a turning staircase characterized by being formed vertically so as to coincide with a reference line of a basic unit) .

[0006]

According to the turning staircase of the present invention, each connection end of the outer side plate is formed vertically so as to coincide with the module of the building in a state where the turning stairs are assembled, so that the building such as a house is constructed. Once the height of the upper floor of the object is determined, the stairs can be united based on this height, and each unit can be patterned to make it independent of the building. Processing can be eliminated.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of a round staircase according to the present invention will be described with reference to FIGS. FIG. 1 is a partial perspective view showing the turning staircase of this embodiment, FIG. 2 is a plan view showing the whole turning staircase shown in FIG. 1, and FIGS. 3 (a), (b) and (c) are shown in FIG. 4 (a) and 4 (b) are views showing a step portion of the turning staircase, wherein FIG. 4 (a) is a plan view thereof, FIGS. 4 (b) and 4 (c) are front views showing the inner surface of the outer side plate, respectively. ) Is a diagram showing one of the lowermost inner side plates shown in FIG. 2, wherein FIG. 5 (a) is a front view showing the inner surface, FIG. 5 (b) is a side view thereof, and FIG. (b) and (c) are views showing the landing portion of the turning staircase shown in FIG. 2, respectively, and are diagrams corresponding to FIGS. 3 (a), (b) and (c), respectively, FIGS. 6 (a) and 6 (a).
(b) is a view corresponding to FIGS. 4 (a) and 4 (b), each showing one of the middle steps of the inward side plate shown in FIG. 2, and FIG. 7 is a view of the remaining uppermost step of the inward side plate shown in FIG. FIG. 8 is a front view showing one inner surface.
(a) and (b) are diagrams showing the straight staircase portion shown in FIG. 2, respectively.
FIG. 2A is a plan view thereof, and FIG. 1B is a front view showing an inner surface of the straight side plate.

As shown in FIGS. 1 and 2, the turning staircase of this embodiment comprises a lower straight staircase portion 2 and an upper straight staircase portion 3 connected to the turning staircase portion 1, respectively, and has a planar shape. It is formed in a U shape and is configured to rise in the direction shown by the arrow in FIG. And the whole of the above-mentioned stairs is composed of a plurality of pillars 4, 4,.
Is fixedly installed.

[Explanation of the turning staircase 1] As is apparent from FIG. 2, the turning staircase 1 has a step portion 11 connected to the lower straight staircase portion 2 and a step portion 11 connected thereto. Landing 1 that connects the upper straight staircase 3
2 from the lower straight staircase 2 to the upper straight staircase 3
The direction is changed by 180 °. And
The turning staircase section 1 is surrounded in a U-shape by an outer side plate 13 disposed on the outer periphery thereof. It has an inner side plate 14 for engaging and supporting. 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 side plate 13. Further, the outer side plate 13 in the stair portion 11
Connecting section A between the outer side plate 13 and the landing section 12
1, each connection end P, P is a round floor of the present invention.
At the center of a building module with steps assembled
It is formed vertically to match.

[0010] A pair of straight side plates 21 constituting the lower straight staircase portion 2 are connected to lower end portions of the outer side plate 13 and the inner side plate 14, respectively. 1
4 is connected to a pair of straight side plates 31 constituting an upper straight staircase portion 3 at the upper end of the upper side.
1, 21 and 31, 31 support the steps of the straight staircase sections 2, 3, respectively. And in the above staircase part 11
The connection end P at the lower end of the outer side plate 13
Connected to the connection end P at the upper end of the straight side plate 21 in the portion 2
(The connecting portion A2 in FIG. 2), outside of the landing section 12
One connection end P of the turning side plate 13 is connected to the upper straight staircase 3
At the lower end of the straight side plate 31 at the connection end P.
(Connecting part A3 on FIG. 2), at each connecting part A2, A3
Each connection end P, P, P, P is a round staircase of the present invention.
In the center of the building module in the assembled state
It is formed vertically to match.

Description of Step 11 As shown in FIGS. 2 and 3, the step 11 is formed so that the steps change the traveling direction by 90 °, and the steps are continuous from the bottom as in the prior art. Treads 111A, 1
11B and 111C and respective risers 112A, 112B and 112C indicated by broken lines in FIG. Then, both ends of each tread plate 111A, 111B, 111C and each riser plate 112A, 112B, 112C are engaged with and supported by respective grooves described later formed in the outer plate members 131, 132 and the inner plate 14 respectively. ing.

That is, the lower outer side plate member 131 has two horizontal grooves 131A, 1
31B are formed so as to be separated from each other by the rising height, and one end of the lowermost tread plate 111A is fitted into the lower groove 131A, and one end of the middle tread plate 111B is fitted into and engaged with the upper lateral groove 131B. I have. The lower end of the lower outer plate member 131 is vertically formed along one end of the lowermost step riser 112A in an assembled state (see FIG. 9). A vertical groove 131C with which one end of the riser plate 112A is engaged is formed on the inner surface along the connection end, and one end of the riser plate 112A is connected to the connection end of the straight side plate 21 of the lower straight staircase portion 2 below. It is made to sandwich. Further, the lower outer side plate member 131 is connected with two lateral grooves 131A and 131B, and the vertical groove 1 reaching the lower edge.
31D is formed, and the middle riser 1 is inserted into the vertical groove 131D.
12B is inserted from the lower edge to engage.

The upper outer plate member 132 has two horizontal grooves 132A, 13 which are horizontal when assembled.
2B are formed so as to be separated from each other by the rising height, and one end of the middle step board 111B is fitted into the lower transverse groove 132A, and one end of the uppermost step board 111C is fitted into and engaged with the upper transverse groove 132B. It has been done. The outer side plate member 132 has the lateral grooves 132A and 132B.
And a vertical groove 132C reaching the lower edge is formed, and the uppermost riser plate 112C is inserted into and engaged with the vertical groove 132C. A short lateral groove 132 parallel to each of the lateral grooves 132A and 132B is formed on the inner surface of a connection end of the outer side plate member 132 with the landing section 12.
D is formed, and the corner of the tip of the landing plate 121 described later is fitted and engaged. The lateral groove 132D is formed at a predetermined distance from the upper end of the connection end. In other words, the height of the connection end formed above the landing plate 121 engaging with the lateral groove 132D is formed at a predetermined height.

On the other hand, the inner side plate 14 includes inner side plate members 141, 1 corresponding to the outer side plate members 131, 132.
42 (see FIGS. 4 and 6), and the inner side plate member 14
The other ends of the treads 111A, 111B, 111C and the risers 112A, 112B, 112C are engaged with 1, 142, respectively. That is, FIG. 4 (a)
As shown in FIG. 2, two horizontal grooves 141A and 141B which are horizontal in an assembled state are formed at a distance from each other by a kick-up height, and the lower groove 141A is provided with the other end of the lowest step plate 111A and the upper side. The middle step board 111 is provided in the lateral groove 141B.
The other ends of B are fitted and engaged with each other. The inner side plate member 141 has a vertical groove 141C along the side edge near the lower straight staircase portion 2 near the lower end thereof.
The other end of the lowermost riser plate 112A is fitted and engaged as described above, and the straight side plate 2 of the lower straight staircase portion 2 is formed.
The other end of the riser plate 112A is sandwiched between the first connection end and the first connection end. A vertical groove 141D connecting the two grooves 141A and 141B and further reaching the lower end is formed in the inner side plate member 141 in parallel with the vertical groove 141C. The insert plate 112B is fitted and engaged. In addition, the lateral groove 141
B is formed so as to reach the upper end surface of the inner side plate member 141, and the middle step board 111B is engaged with the rectangular notch. Further, a lateral groove 141E corresponding to the short groove 132D of the outer side plate member 132 is formed above the lateral groove 141B on the end face, and the corner at the tip of the uppermost step board 111C is fitted into and engaged with the lateral groove 141E. It has been made like that.

Description of the landing section 12 In the landing section 12, as shown in FIGS. 2 and 5, a landing board 121 is surrounded by outer side plate members 133 and 134. As shown in FIGS. 5 (b) and 5 (c), on the inner surfaces of the outer side plate members 133 and 134, one horizontal groove 133A, 134A which is horizontal when assembled is formed. Are fitted and engaged. Further, the inner surface of the upper side end of the outer side plate member 134 has the landing portion 12 above the lateral groove 134A.
A short lateral groove 134B is formed in which a corner at the tip of the lowermost tread plate 32A constituting the straight staircase 3 is fitted.
The lateral groove 134B is formed on the outer side plate member 1 of the step portion 11.
Similarly to 32, it is formed at a position separated from the upper end of the connection end of the outer side plate member 134 by a certain dimension, and these two dimensions are equal.

On the other hand, the inner side plate 14 has inner side plate members 142 and 143 corresponding to the outer side plate members 132, 133 and 134 (see FIGS. 6 and 7). , 143 is engaged with the other end of the landing plate 121. That is, the inner surface of the inner side plate member 142
As shown in (a) and (b), three grooves 142A, 142B and 142C, which are horizontal in the assembled state, are formed at a distance from each other by a kick-up height. The rectangular cutouts formed in the inner corners of the stairs engage with the other two grooves 142A and 142B, and the middle tread 111B and the top tread 111C of the stair portion 11 respectively engage with the other two grooves 142A and 142B. It has been made like that. Also, of the inner-side plate members 142, the inner-side plate members 1
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 step 41.
The first uppermost riser plate 112C is inserted from the lower end and engaged therewith. A vertical groove 142E extending from the uppermost groove 142C to the lower end thereof is formed on the inner surface of the inner side plate member 142 in parallel with the vertical groove 142D. It is adapted to be engaged by engaging. The landing board 121
As is apparent from FIG. 2, the inner side plate member 142
5A and a notch 121A (see FIG. 7) formed on another inner side plate member 143 (see FIG. 7) connected thereto. FIG. 5 (a)) is formed. The inner side plate member 143
As shown in FIG. 7, a groove 143B located above the horizontal groove 143A is formed, and a corner of the tip of a tread plate 32A constituting the lowest step of the upper straight staircase 3 following the turning staircase 1 Are adapted to engage.

As is apparent from the above description, the turning staircase 1 is composed of a staircase portion 11 and a landing portion 12, and the treads 111 A, 111 B, 111 C, and the landing plate 12 are provided.
1 and risers 112A, 112B, 112C, 122
Are engaged and supported by grooves provided in the outer side plate 13 and the inner side plate 14, respectively. Also,
Connection end of staircase portion 11 and riser 122 of landing portion 12
And the surface coincides with the module of the building, and is similarly configured at each connection end described below.

[Description of straight staircases 2 and 3] Next, the straight staircases 2 and 3 connected by the above-mentioned surrounding staircase 1 will be described. Since the upper straight staircase 3 is configured in accordance with the lower straight staircase 2, only the lower straight staircase 2 will be described below with reference to FIGS. 8 (a) and 8 (b).

As shown in FIG. 8 (a), the straight staircase portion 2 is engaged with a pair of straight side plates 21, 21 connected to the outer side plate 13 and the inner side plate 14, and the grooves formed in these. , Supported tread plates 22A, 22B, 22C, 22D and riser plates 23A, 23B, 23C, 23D. The pair of straight side plates 21 and 21 are machined so that the connection ends are vertical in an assembled state so that the connection ends can be connected to the connection ends of the outer side plate 13 and the inner side plate 14. Then, the lowermost riser plate 11 of the stair portion 11 which engages with the connection end of each of the outer side plate 13 and the inner side plate 14.
2A is sandwiched between the connection ends of the straight side plates 21 and 21 so that the connection end and the surface of the riser plate 112A coincide with each other and also coincide with the building module as described above.

Since the pair of straight side plates 21 and 21 are symmetrical, one of the straight side plates 21 will be described. On the inner surface of the straight side plate 21, as shown in FIG. A plurality of horizontal grooves 21A to be horizontal are formed in accordance with the number of steps, and one end of the tread plate 22 is fitted into and engaged with each of the horizontal grooves 21A. The straight side plate 2
A short lateral groove 21B located above the uppermost lateral groove 21A is formed on the inner surface of the connection end of the first stepped end 1 so as to engage the corner of the tip of the lowermost step board 111A of the turning staircase portion 1. Has been made. The start end of the straight side plate 21 is extended beyond the module to a place where the straight side plate 21 fits well with the wall, and is formed in parallel with the connection end. Needless to say, the dimensions of the tread and riser of the upper straight staircase 3 are adjusted so that the connection end to the upper floor can be connected to the floor of the upper floor.

As described above, the turning stairs of this embodiment are provided with an inner turning side plate 14 which is not provided in the related art, and the outer turning side plate 13 and the inner turning side plate 14 which constitute the turning stairs.
And a groove for each unit of the straight side plates 21 and 31 to make the connection end perpendicular to the riser plate at the position of the riser plate, and to be fitted with the tip corner of the next tread plate at the connection end of each side plate. Since the height of the upper floor of a building, such as a house, is determined because the fixed relationship is established, the stairs are unitized according to the above relationship based on this height, and each unit is patterned. This allows the design to be independent of the building and each staircase to be manufactured completely automatically as a finished part. In other words, since the turning staircase of the present embodiment does not require actual measurement on the skeleton side, the staircase should be attached at the time of construction or immediately thereafter without waiting for the completion of the finishing floors of the upper and lower floors as in the conventional case. Can be. Therefore, according to the turning staircase of the present embodiment, the staircase material can be completely processed at the factory, so that the workability can be rationalized, the processing at the stair installation site can be completely eliminated, and the construction technology can be simplified. Can be achieved.

The straight staircases 2 and 3 are also the same as the surrounding staircases 1.
As in the above, all the processing can be performed in the factory, and only the assembling and fixing work can be performed on site. Of course, the turning staircase of the present embodiment can be assembled at a factory, and can be completed only by fixing mainly at the site.

Next, a staircase equipped with a computer and a staircase material processing machine suitably used for manufacturing the staircase material of the round staircase of the present invention (the staircase material including the outer side plate 13 and other staircase materials). Regarding the system configuration of the material processing equipment,
A description will be given based on FIG. 11 and FIG. FIG. 11 is a system configuration diagram showing a staircase material processing apparatus provided with a computer and a staircase material processing machine suitable for automatically processing the staircase material of the turning staircase of the present invention, and FIG. 12 shows the system configuration shown in FIG. It is a flowchart which shows the process at the time of using this to automatically manufacture the step material of the surrounding stairs of this invention.

As shown in FIG. 11, a staircase processing apparatus used in the present system configuration includes a computer 100 and a computer 100 under the control of the computer 100.
And a staircase material processing device 200 that drives the staircase material based on the above-mentioned instruction to perform precut processing, groove processing, and the like.

Thus, the computer 100 inputs a building material input device 120 for inputting building information relating to building materials based on a design drawing 020 of a building such as a wooden house whose specifications have been determined by the CAD system 010. Staircase material CPU 13 for converting building information related to staircase materials into processing information
0 and a staircase material interface 140, and the processing information converted by the staircase material CPU 130 is provided to the staircase material processing apparatus 20 installed in the factory via a communication line such as an optical fiber.
0 is transmitted.

The CAD system 010 includes a step material C
The stair material CPU 130 is connected to the PU 130 via the CAD interface 110 and the stair material processing control personal computer 21 via the stair material interface 140.
0 is connected to transmit processing information.

The CAD system 010 is a system that supports work such as layout and structural design when designing a building such as a custom-built wooden house. The specifications of the house designed by the CAD system 010 are as follows. When determined, the building structure information of the house is constructed based on the determined design drawing 020, and the stair information input based on the constructed building structure information is the stair material CP as described above.
U130 is converted into the processing information, and the converted processing information is temporarily stored in the step material data 150 and the processing data 1
60 is stored in a hard disk (HD) or a floppy disk (FD) and is also stored in a parts specification file 170. And
The processing information of the stairs once stored in the parts specification file 170 is transmitted to the stairs processing control CP of the factory via the stairs CPU 130, the stairs interface 140, and the communication line.
The information is transmitted to a U (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 processing command corresponding to each component is stored in the processing command file 180, and the component label corresponding to each component is stored in the component label file 190, respectively.

The processing command of the processing instruction file 170 and the component label of the component label file 190 are transmitted to the stepping material processing control personal computer 210 via the stepping material CPU 130, the stepping material interface 140, and the communication line. ing.

On the other hand, in the factory, when the operator inputs a machining command based on the machining instruction file 170 to the staircase material machining control personal computer 210, the stairs are processed in accordance with the machining information stored in the storage medium based on the instruction command. Material processing machine 22
The stairs are automatically pre-cut, grooved, and the like from the processing wood fed by controlling the driving of the zero.

Based on the information in the part label file 190, the processed stairs are sequentially assigned a part management code to mark the mounting position, and are provided for management of packing, mounting and the like. Has been made.
Note that the computer 100 used in this system configuration
Is configured to collectively manage staircase packaging, totalization, and delivery.

Next, a method for automatically manufacturing a step material for a round staircase according to the present invention using the above system configuration will be described with reference to a flowchart shown in FIG. First, stairs information such as the specification and quantity of each staircase is input to the staircase CPU 130 from the design drawing 020 of the wooden house determined by the CAD system 010 at the computer center by the staircase input 120.
(Step S-1), the staircase material CPU 130
In the step information, the step information is generated as the processing information of the step material (step S-2), and the generated processing information is once processed information 1
60 is stored in a hard disk or a floppy disk in the computer 100 (step S-
3). The processing information is transmitted from the staircase material CPU 130 to the staircase material processing control personal computer 210 via the staircase material interface 140 and the communication line, and is stored in the storage medium (step S-4).

At the factory, the operator prepares processing wood (step S-5), and installs processing wood on the line so as to be processed by the staircase processing machine 220 (step S-).
6). Next, when a machining command based on the machining instruction file 180 is input to the staircase material machining control personal computer 210,
The following processing is performed in accordance with the processing information already stored in the step material processing control personal computer 210. That is, it is determined whether or not the processing information is related to the side plate (step S-7). If it is determined that the processing information is related to the side plate, a digging process of a groove or the like is performed based on the processing information ( Step S-
8) Processing of the screw hole is performed (step S-9), and subsequently, the end of the side plate, such as the connection end, is cut based on the processing information to finish the processing of the side plate (step S-1).
0) Further, based on the component label file 190, marking is performed on the side plate such as a component management symbol and a mounting position (step S-11).

If it is determined in step S-7 that the processing information does not relate to the side plate, it is determined that the processing information relates to a tread other than the side plate, and the process proceeds to step S-10, where the end processing according to the shape is performed. After performing (Step S
-10), marking is performed on each step material (step S-11).

Therefore, according to the automatic manufacturing method using the above system configuration, if the specification of the stairs used for the building of the custom-built wooden house is determined, the precut processing of the stairs is automatically performed.
Groove processing and the like can be performed to automatically produce a staircase material of the surrounding staircase of the present invention required for a desired custom-built house at a factory. In addition, waste materials are reduced by minimizing scraps of processing wood, and all stairs are marked with a part management number, etc. As in the past, it is not necessary to prepare extra wood, and it is possible to improve the yield, and at the construction site, it is only necessary to assemble the incoming stairs based on each part control number, eliminating the shortage of skilled workers can do.

Further, since the above-mentioned automatic manufacturing method can completely turn all the step materials of the surrounding stairs of the present invention into parts by precutting, groove processing, etc., there is no need for cutting work at high places at the construction site, and the construction is performed. It is possible to improve work safety, reduce noise caused by the cutting work, suppress generation of dust, and reduce industrial waste.

In order to machine the stairs of the round staircase of the present invention by the above-mentioned automatic manufacturing method, a special program is used to execute numerical values (set type, basic module dimensions, floor height, Needless to say, by simply inputting the number of steps based on the determined specifications of the stairs, it is possible to immediately generate machining data of all parts and perform complete part processing.
Needless to say, the above-described automatic manufacturing method can be similarly applied to a straight staircase.

The turning staircase of the present invention is not limited to the above embodiment. For example, the turning staircase in the above embodiment is:
Although the turning staircase 1 had a U-shaped configuration consisting of the staircase portion 11 and the landing portion 12, the turning staircase 1 was not in the U-shape, and the turning staircase 1 was either the staircase portion 11 or the landing site. It may consist of only the part 12 and have an L-shaped form. Further, the turning staircase 1 in the above embodiment.
Is a plurality of stairs 11 and a single landing 1
2, the landing section 12 may be formed as a plurality of steps similar to the step section 11. Other points can be appropriately changed without departing from the spirit of the present invention.

[0038]

According to the turning stairs of the present invention, each connection end of the outer side plate is formed vertically so as to coincide with the module of the building in a state where the turning stairs are assembled. The material, particularly the outer side plate of the step material, can be easily and automatically manufactured in the factory. Further, by making each connection end of the outer side plate coincide with the surface of the riser plate arranged at each connection end, the outer side plate can be more easily and automatically manufactured.

[Brief description of the drawings]

FIG. 1 is a partial perspective view showing one embodiment of a turning staircase of the present invention.

FIG. 2 is a plan view showing the entire turning staircase shown in FIG. 1;

FIGS. 3 (a), 3 (b) and 3 (c) are views showing steps of the turning steps shown in FIG. 2; FIG. 3 (a) is a plan view thereof, and FIGS. It is a front view which shows the inner surface of a turning side plate.

FIGS. 4 (a) and 4 (b) are views showing one of the lowermost inner side plates shown in FIG. 2; FIG. 4 (a) is a front view showing the inner surface;
(b) is a side view.

FIGS. 5 (a), (b) and (c) are views showing landing areas of the turning staircase shown in FIG. 2, respectively, and FIGS. 3 (a), (b) and
It is a figure corresponding to (c).

FIGS. 6 (a) and 6 (b) are views corresponding to FIGS. 4 (a) and 4 (b), respectively, showing one of the middle-stage inner plates shown in FIG.

FIG. 7 is a front view showing the inner surface of the remaining uppermost one of the inner side plates shown in FIG. 2;

8 (a) and 8 (b) are views each showing the straight staircase portion shown in FIG. 2, (a) is a plan view thereof, and (b) is a front view showing the inner surface of the straight side plate.

FIG. 9 is an enlarged perspective view showing a connecting portion between the outer side plate and the straight side plate in the round staircase of the present invention.

FIG. 10 is a diagram corresponding to FIG. 9 in a conventional round staircase.

FIG. 11 is a system configuration diagram showing a staircase material processing apparatus provided with a computer and a staircase material processing machine suitable for automatically processing staircase materials of a round staircase according to the present invention.

FIG. 12 is a flowchart showing a process of automatically manufacturing a step material of a round staircase of the present invention using the system configuration shown in FIG. 11;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Surrounding step part 11 Stair part 12 Landing part 13 Outer side board 14 Inner side board 2, 3 Straight stair part

Claims (2)

(57) [Claims] 1. A turning staircase comprising a turning staircase portion and a lower straight staircase portion and an upper straight staircase portion respectively connected to the turning staircase portion, wherein the turning staircase portion is connected to the lower straight staircase portion. A staircase portion connected to the staircase portion and a landing portion communicating the upper straight staircase portion, an outer side plate being disposed on the outer periphery thereof, and a straight side plate at the lower straight staircase portion At the top of
The connection end is the connection of the lower end of the outer side plate
Connected to the end, below the straight side plate in the upper straight staircase
The connection end of the end is one of the outer side plates in the landing section
It is connected to the connection ends,
Of the outer side plate at the landing and the outer side plate at the landing
The turning staircase , wherein each connection end of the contact portion is formed vertically so as to coincide with the center of the module of the building when the turning staircase is assembled. 2. The method according to claim 1, wherein the turning staircase has a riser plate, and each connection end of the outer side plate matches a surface of the riser plate disposed at each connection end. Item 2. The turning staircase according to item 1.