JPH04366266A - Stair structure - Google Patents

Abstract

PURPOSE:To appropriately form an outdoor stair at a recessed corner of an outer wall of a house. CONSTITUTION:An outdoor stair B is formed at a recessed corner A of the outer wall B outside a house H. The house H has the first wall face W1 extending from the recessed corner A to the front, the second wall face W2 extending from the recessed corner A to the lateral direction, and the third wall face W3 forming the first protruded corner D with the first wall face W1. And the outdoor stair B is provided with a stair skeleton C connected by stair frames 9A, 9B, between landing frames 6A, 6B having different heights. An inside and an outside stair post 2, 3 are provided at the front edge of the front landing frame 6A and also an intermediate stair post 4 is erected at the outer edge side. The frame member 14 of landing frame 6A is connected to the post 5 of house arranged at the first protruded corner D by use of a jointing fixture 10.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a staircase structure that allows an outdoor staircase to be conveniently formed in a corner of an outer wall of a house.

0002

[Prior art and problems to be solved by the invention] In recent years,
Multi-story housing complexes made of lightweight steel structures or panel construction methods are becoming popular. In addition, in such a housing complex, for example, as shown in FIG. 6(A), the outer wall w is recessed and a stairway c having a staircase b is provided in the recessed part a, as well as a stairwell c as shown in FIG. 6(B). As shown in FIG. 2, there are some cases in which an outdoor staircase e is provided outside the upper-floor corridor d along the outer wall w and parallel to the upper-floor corridor d.

[0003] On the other hand, even in such housing complexes, there is a demand for configuring various floor plans depending on the tastes of the residents, location conditions, etc. One example is the layout shown schematically in FIG. , a multi-story house is provided with an entrance corner f where the outer walls w1 and w2 intersect at right angles, and an outer wall w3 that continues to the front end of the outer wall w1 and extends laterally, and the outer wall w2.
There are some that have an outer wall w4 that is connected to the lateral end and extends rearward, and that an entrance g such as a vestibule is provided in the outer wall w1 of each floor.

[0004] Also, in such an apartment complex, a staircase k is provided in the recess h formed by the outer walls w1 and w2, as shown by the dashed line in FIG. Therefore, there has been a strong demand for a new staircase structure that can conveniently form such stairs k.

[0005] The present invention provides a stair frame body in which the front and rear landing frames of different heights are connected by inner and outer stair frames having a pair of stringers, and is arranged at the front edge of the previous landing frame. The purpose of the present invention is to provide a staircase structure that can conveniently form an outdoor staircase at the inside corner of the exterior wall of a house, based on the fact that it is supported by the interior and exterior staircase pillars and the pillars of the house provided at the first protruding corner. .

[0006]

[Means for Solving the Problems] The present invention provides a staircase structure in which an outdoor staircase is formed at an inner corner of an outer wall of a house, wherein the house has a first wall surface extending forward from the inner corner; A second wall surface extends laterally outward from the entrance corner at right angles to the first wall surface, and a second wall surface extends laterally inwardly from the front end of the first wall surface to form a first exit corner with the first wall surface. 3 and the second wall.
The outdoor staircase has a fourth wall that extends rearward from the lateral end of the wall and forms a second protruding corner with the second wall, and the outdoor staircase has landing frames that are different in height from front to back. In between,
a stair frame body connected by inner and outer stair frames having a pair of parallel stringers extending upward and downward and extending over the step plates; and a front edge of the front landing frame of the stair frame body; In addition, an inner front stair pillar is provided on the inner end side, an outer front stair pillar is provided on the outer end side, and an intermediate stair pillar is arranged between the stair frame and the rear landing frame and on the outer end side. A frame material parallel to the first wall surface of the front landing frame of the stair frame body is connected to a pillar of the house provided at the first projecting corner using a connecting fitting, and further the outside front stair pillar, the middle The center of the stair pillar is located in a plane that passes through the center of the pillar of the house arranged at the second projecting corner and is parallel to the fourth wall surface.

[0007]

[Operation] A first wall surface extending forward from the inside corner, a second wall surface extending laterally outward from the inside corner, and the first wall surface and the first wall surface extending laterally outward from the inside corner.
An outdoor staircase is formed at an entrance corner of a house having a third wall surface forming a projecting corner, and a fourth wall surface forming a second projecting corner with the second wall surface. In this way, the present invention provides orthogonal first and second
Since the staircase is intended to be installed in a place surrounded by walls, it is possible to increase the degree of freedom in designing the house, and to implement a plan that meets the needs of the residents, location conditions, etc.

[0008] The outdoor staircase also includes a stair frame body in which the front and rear landing frames of different heights are connected by a stair frame having a pair of stringers. At the front edge and inner end of the landing frame, and at the outer end, the inner front,
By providing the outer front stair pillar and disposing the intermediate stair pillar between the stair frame and the rear landing frame, the front edge and outer end of the stair frame are supported, while the front landing frame is supported. The inner end of the stair frame body is supported by connecting the frame material to the pillar of the house provided at the first projecting corner using a connecting fitting. In this way, the stair frame has a simple configuration and can be conveniently placed in the corner of the house, improving construction efficiency, and since it uses the pillars of the house, it does not have a large impact on the house itself. It is possible to form an outdoor staircase without any need.

Furthermore, the front stair pillar and the middle stair pillar are erected with their centers passing through the centers of the pillars of the house arranged at the second projecting corner and parallel to the fourth wall surface. are doing. Therefore, it is possible to position the outer edge of the outdoor staircase inside the plane extending from the fourth wall surface, and the outdoor staircase can be formed to fit well in the corner, and its appearance can be improved. At the same time, the area for stairs can be reduced.

0010

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. In the figure, the structure of the staircase of the present invention is such that an outdoor staircase B is formed at an inside corner A of an outer wall W of a multi-story, in this example, three-story house H, and the outer wall W has first and second floors. 2, third, and fourth wall surfaces W1, W2, W3, and W4. , 3 and middle stair pillar 4
and the pillar 5 of the house provided at the first projecting corner D.

In this embodiment, the outer wall W is shown in FIGS. 3 and 5.
As shown in part, the wall panel P that forms the outer wall of each floor
…and the curtain panel P that connects the upper and lower floor wall panels P and P.
It is formed from M. The wall panel P consists of an upper frame member made of channel steel and a vertical frame member 21 with both ends of the lower frame member 20 facing each other with their grooves facing each other.
It is an integrally transportable panel body consisting of an interior board 22 and an exterior board 23 attached to the inside and outside of a rectangular frame joined together by It consists of a horizontally long rectangular panel body in which an exterior plate 27 is attached to the outer surface of a framework in which both ends of an upper frame member 24 and a lower frame member 25 are joined by side frame members 26. The wall panel P and curtain panel PM are:
As shown in FIG. 2, the outer surfaces are aligned and fixed alternately in the vertical direction to form the outer wall W.

[0012] The outer surface of the outer wall W has the first, second and third
, and has fourth wall surfaces W1, W2, W3, and W4. The first
The wall surface W1 extends forward from the entry corner A, that is, downward in FIG. 1, and the second wall surface W2 extends from the entry corner A.
It extends laterally outward at right angles to the first wall surface W1, that is, to the right in FIG. Furthermore, a third wall surface W3 extending laterally inward at right angles to the first wall surface W1, that is, to the left in FIG. 1, is connected to the front end of the first wall surface W1. A first projecting corner D is formed by the wall surface W1, and a second projecting corner D is formed at the lateral end of the second wall surface W2.
A fourth wall surface W4 extends rearward at right angles to the wall surface W2, that is, upward in FIG. 1, and a second protruding corner E is formed by the fourth wall surface W4 and the second wall surface W2. In addition, in this example, the first protruding corner D formed by the first and third wall surfaces W1 and W3 is a corner panel whose side portion is fixed to the wall panel P and the curtain panel PM, as shown in FIG. Formed by PC.

The corner panel PC is a vertically long rectangular frame P made by joining outer frame members made of channel steel with their grooves facing each other.
Two panel PCs with exterior plate PC2 attached to the outer surface of C1
a and PCb are joined at right angles by overlapping and bolting the projecting pieces PC3 protruding from the framework PC1 toward the first protruding corner D. Note that the second projecting corner E formed by the second and fourth wall surfaces W2 and W4 is also formed using the corner panel PC.

The first and second houses of the house H formed in this way
The outdoor staircase B is built in the recess F surrounded by the walls W1 and W2. The stair frame body C of the outdoor staircase B has landing frames 6A that are arranged in the front and rear, that is, in the lower and upper directions in FIG. 1 and at different heights.
, 6B are connected by inner and outer stair frames 9A and 9B having a pair of parallel stringers 7 and 7 extending upward and downward, respectively, spanning the step plates G. The front edge and outer end side are supported by the front stair pillars 2 and 3 and the intermediate stair pillar 4 arranged between the outer stair frame 9B and the rear landing frame 6B and on the outer end side.

In this example, each stair pillar 2, 3, 4 is formed from a square steel pipe rising from the foundation, and the inner front and outer front stair pillars 2, 3 are connected to the first stair pillar as shown in FIG. wall surface W1
It is erected with its center located within a plane extending forward and parallel to the third wall surface W3. The front stair pillar 3 and the middle stair pillar 4 pass through the center of the pillar 12 of the house, which is made of H-beam steel in this example and are arranged at the second projecting corner E, and are parallel to the fourth wall surface W4. Each stair pillar 3, 4 is arranged with its center located within plane I.

[0016] The front landing frame 6A is for forming a landing on the middle floor, and the front stair pillar 2 is provided at the front edge and inner end side of the front landing frame 6A, and the inner front stair pillar 2 is provided at the outer end side. A frame member 13 having a U-shaped cross section is horizontally spanned between the outer front stair pillar 3, and one end is fixed to the inner front stair pillar 2, and the groove portion is parallel to the first wall surface W1. A frame member 14 having a U-shaped cross section facing the first wall surface W1, an outer frame member 15 having a U-shaped cross section parallel to the frame member 14 and having one end fixed to the outside front stair pillar 3; , 15, and a frame member 16 having a U-shaped cross section.

As shown in FIG. 3, the frame member 13 has mounting pieces for L-shaped mounting brackets 30, 30 fixed by bolts or the like to the opposing sides of the inner and outer stair pillars 2, 3. 3
It is fixed to the stair pillars 2 and 3 by bolting the vicinity of both ends of the web 13A of the frame member 13 to 0A and 30A. Further, one ends of the frame members 14 and 15 are bolted to the stair pillars 2 and 3 using L-shaped mounting brackets 31, and the frame members 1
Both ends of the frame members 14 and 15 are connected to the opposing webs 14 of the frames 14 and 15.
The mounting pieces 32A and 32A of the L-shaped mounting bracket 32 fixed to A and 15A by welding etc. are attached to the web 16A of the frame material 16.
It is fixed to the frame members 14 and 15 by bolting to the frame members 14 and 15. Note that between the front and rear frame members 13 and 16, landing beams 33 made of square steel pipes are constructed parallel to the frame members 14 and at appropriate intervals. Also, the stair pillars 2 and 3 in front of the inside and outside
As shown in FIG. 2, the upper ends thereof are substantially aligned with the upper surfaces of the frame members 13, 14, 15 of the landing frame 6A on the upper floor.

Further, the frame material 14 parallel to the first wall surface W1 of the front landing frame 6A is connected to the pillar 5 of the house erected at the first projecting corner D using a connecting fitting 10. .

The column 5 is formed from an H-shaped steel having flanges 5B, 5B provided at both ends of a web 5A parallel to the third wall surface W3. As shown in FIG. 3, the connecting fitting 10 includes a rectangular fixing piece 10A that is bolted to the flange 5B, and a rectangular fixing piece 10A that protrudes vertically from the horizontal center of the fixing piece 10A, and also connects the wall panel P and the corner panel PC. A rectangular connecting piece 10B that is interposed between one panel PCa of
It is an I-shaped metal fitting consisting of a rectangular fixing piece 10C that is provided perpendicularly to the outer end of the frame member 14 and bolts the web 14A of the frame member 14.
are strongly connected.

Note that the connecting fitting 10 may be made of a steel section having a U-shaped cross section. Further, the joints, which are small gaps between the connecting piece 10B of the connecting fitting 10, the exterior plate 23 of the wall panel P, and the exterior plate PC2 of the panel PCa, are filled with a caulking agent K to make them watertight.

Further, the rear landing frame 6B is connected to the first wall surface W.
A frame material having a U-shaped cross section and having one end fixed to the intermediate stair pillar 4 and parallel to the second wall surface W2. 17, a frame member 18 having a horizontal U-shaped cross section that is at the same height as the frame member 17 and along the curtain panel PM, one end of which is fixed to the intermediate stair pillar 4, and the other end of which is joined to the frame member 18. The frame member 19 has a horizontal U-shaped cross section.

As shown in FIGS. 1 and 4, the other end of the frame member 17 is an I-shaped steel that connects the pillar 5 and a house pillar 35 made of H-shaped steel that stands in the corner A. It is fixed via a connecting fitting 37 to a horizontal floor beam 36 formed from.

The connecting fitting 37 includes a horizontal piece 37A1 that is bolted to the flange 36A on the floor beam 36 and extends outward beyond the upper end of the wall panel P, and a hanging piece that hangs down from the outer end of the horizontal piece 37A1. 37A2, and a vertical rectangular piece 37B1 bolted to the hanging piece 37A2 of the metal piece 37A, and the rectangular piece 37.
Web 17A of frame material 17 bent at a right angle from the rear end of B1
Mounting hardware 3 consisting of a fixing piece 37B2 for bolting the
It has 7B. The other end of the frame material 17 is connected to the mounting hardware 37B.
By bolting it to the fixed piece 37B2, it is firmly connected to the floor beam 36.

As shown in FIGS. 1 and 5, the frame member 18 is fixed to a floor beam 40 made of I-beam steel installed horizontally between the pillars 35 and 12 via fittings 41. .

The joint fittings 41 are bolted to the upper and lower flanges 40A and 40B of the floor beam 40, and are bolted to the floor beam 40.
It has upper and lower fixing pieces 42 and 43 extending forward at right angles. Further, an upper protruding piece 44 is raised from the front end of the upper fixing piece 42, and a lower protruding piece 45 is lowered from the lower fixing piece 43 in the same vertical plane as the upper protruding piece 44.

Furthermore, at the front ends of the upper and lower fixing pieces 42 and 43,
A U-shaped fitting portion 50 is provided in which the front ends of the upper piece 46 and the lower piece 47 are connected by a vertical connecting piece 49. The length h1 between the front surfaces of the upper and lower projecting pieces 44 and 45 and the front surface of the connecting piece 49 is set equal to the thickness of the curtain panel PM.

[0027] Vertical middle frame members 52, 52 with grooves oriented in opposite directions are spanned over the curtain panel PM, with the width h2 of the insertion portion 50 being separated therebetween. Further, the exterior plate 27 is
By discontinuing between the middle frame members 52, 52, a hole 53 into which the fitting portion 50 can be fitted is formed. The length between the upper frame member 24 and the lower frame member 25 of the curtain panel PM is set to a length that sandwiches the upper piece 46 and the lower piece 47.

Therefore, the fitting portion 50 can be fitted into the hole 53 relatively tightly, and the upper frame member 24,
By bolting the lower frame material 25, the connecting piece 49
The front surface of the frame member 18 can be aligned with the front surface of the exterior plate 27 of the curtain panel PM, and the frame member 18 is fixed to the connecting piece 49.

The frame member 18 is held firmly and horizontally by bolting its web 18A to the connecting piece 49. Note that between the frame material 18 and the frame material 17,
Landing beams 54 made of square steel pipes are installed at appropriate intervals, and a landing beam 55 having an inverted L-shaped cross section is installed between the inner ends of the frame members 17 and 18 adjacent to the first wall surface W1. will be bridged.

Furthermore, inner and outer stair frames 9A and 9B are constructed between the front and rear landing frames 6A and 6B. In this example, the inner stair frame 9A is connected to the first part of the previous landing frame 6A.
A stringer girder 7a which is formed integrally with the frame material 14 along the wall surface W1 and has a U-shaped cross section and has an inclined part 7A and a horizontal part 7B;
And the rear frame material 16 of the front landing frame 6A and the front frame material 17 of the rear landing frame 6B are connected, and the inclined part 7C and the horizontal part 7
A stringer 7b having a U-shaped cross section is provided.

[0031] The stringers 7a and 7b have their grooves facing oppositely to each other, and the rear end of the horizontal portion 7B of the stringer 7a is bolted to the web 17A of the frame member 17 via a mounting bracket (not shown). , by bolting the front end of the sloped part 7C of the crossbeam 7b to the web 16A of the frame member 16 and the rear end of the horizontal part 7D to the web 17A of the frame member 17 using the mounting brackets 59, respectively. The stringers 7a and 7b are constructed between the front and rear landing frames 6A and 6B.

The outer stair frame 9B includes a stringer 7c formed integrally with the frame member 15 of the previous landing frame 6A and having a U-shaped cross section and an inclined portion 7E, and a web 1 of the frame member 16.
6A is provided with a stringer girder 7d which is bolted at one end and has a U-shaped cross section and has an inclined portion 7F.

The rear end of the outer stair frame 9B has a vertical portion 7
G is fixed to the foundation M by a hole-in anchor or the like, and the rear end of the stair frame 9B on the upper floor is fixed to the side surface of the intermediate stair pillar 4 by using the mounting bracket 57, or The stringer girder 7d is used as the frame material 1 of the rear landing frame 6B.
It is fixed by bolting to the web 17A of No. 7 using a mounting bracket (not shown).

In this way, the outer stair frame 9B does not exceed the outer front stair pillar 3 and the middle stair pillar 4 outwardly, that is, to the right as shown in FIG. The outer edge can be located inside the fourth wall surface W4, and the outdoor stairs B can be formed in the recess F in a well-fitted manner.

[0035]

Effects of the Invention As described above, the structure of the staircase of the present invention has first and second wall surfaces extending perpendicularly from the corner of the house;
A house has a third wall that extends horizontally from the front end of the wall, and a fourth wall that extends rearward from the lateral end of the second wall. stair pillar,
The outdoor staircase is formed by supporting the staircase frame body on the pillars of the house provided at the first projecting corner. In this way, outdoor stairs can be arranged in the corner of a house according to the outer circumferential shape of the house, so it can conveniently respond to the diversification of the tastes of residents and contribute to expanding the degree of freedom of the house.

[Brief explanation of drawings]

FIG. 1 is a plan view showing one embodiment of the present invention.

FIG. 2 is a perspective view thereof.

FIG. 3 is a sectional view showing a connection structure between a pillar of a house provided at a first projecting corner and a frame member of a landing frame.

FIG. 4 is a perspective view showing a connection structure between a landing frame and a floor beam.

FIG. 5 is an exploded perspective view showing a connection structure between a landing frame and a floor beam.

FIG. 6A and FIG. 6B are both plan views illustrating a conventional technique.

FIG. 7 is a sectional view schematically showing a house in which the present invention can be adopted.

[Explanation of symbols]

2 Inner front stair pillar 3 Outer front stair pillar 4 Intermediate stair pillar 5 House pillar installed at the first protruding corner 6A Front landing frame 6B Rear landing frame 7, 7a, 7b, 7c, 7d String girder 9A Inner stair frame 9B Outer stair frame 10 Connecting fittings 12 House pillars 14 placed at the second out corner Frame material A parallel to the first wall Inner corner B Outdoor stairs C Stair frame D First out Corner E Second protruding corner G Step board H House I Plane parallel to the fourth wall W External wall W1 First wall W2 Second wall W3 Third wall W4 Fourth wall

Claims (1)

[Claims] 1. A staircase structure in which an outdoor staircase is formed at an inside corner of an outer wall of a house, wherein the house has a first wall surface extending forward from the inside corner, and a first wall surface extending from the inside corner. a second wall surface that extends laterally outward at right angles to the first wall surface; The fourth wall extends rearward from the side edge of the second wall and forms a second protruding corner with the second wall.
The outdoor staircase has an inner side and an outer side having a pair of stringers extending parallel to each other upwardly and downwardly and extending between landing frames of different heights at the front and back. a stair frame body connected by a stair frame, and an inner front stair column is provided at the front edge and inner end side of the front landing frame of the stair frame body, and an outer front stair column is provided at the outer end side. , and an intermediate stair pillar is disposed between the stair frame and the rear landing frame on the outer end side, and a frame member parallel to the first wall surface of the front landing frame of this stair frame body is Connect the pillars of the house located at the first projecting corner using connecting metal fittings, and further connect the stair pillars in front of the outside and the staircase pillars in the middle to the pillars of the house located at the second projecting corner, and A staircase structure whose center is located within a plane parallel to the wall of 4.