JP2008057219A - Staircase structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a staircase structure which can reduce a protrusion D of a staircase from an external wall surface of a building and at the same time sets a desired frontage dimension W, to thereby improve the appearance quality of the building. <P>SOLUTION: In the building formed of building units 11, 11, etc., the U-shaped staircase 13 located at the center of the building as viewed from the front is located at an opening section between the building units 11, 11 arranged on a front right side and a front left side as viewed from the front, and set such that a half dimension (about 900 mm) thereof overlaps each other in a depth direction. In the U-shaped staircase 13, the number of steps 22, 22, etc., on a right side 17 located on a lower portion of the staircase is set 6 steps inclusive of a lower corner landing 23 having an almost square shape in plan, the number of steps 21, 21, etc., on a front side 16 located at the center of the staircase is set to 5 inclusive of a landing 24 over a front entrance, and the number of steps 20, 20, etc., on a left side 15 located on an upper portion of the staircase is set to 4 inclusive of an upper-story entrance porch 18, respectively. In this manner the number (5 steps) of the steps 22, 22, etc., on the right side 17 is set larger than the number (3 steps) of the steps 20, 20, etc., on the left side (3). <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a staircase structure that can be used in a staircase portion of an apartment building such as a building, particularly a rental apartment, and can reduce the amount of protrusion from an outer wall portion.

  Conventionally, an external staircase structure of a building as shown in FIG. 5 is known (see, for example, Patent Document 1).

  First, in terms of the configuration, in the apartment house 1 as this building, the dwelling units 4 and 4 as two households are substantially symmetrical on both sides of the staircase 2 as the staircase part via the partition part 3. Are arranged as follows.

  In the staircase 2 having such a conventional outer staircase structure, all steps are provided on the side 6 along the outer wall surface 5 on the front side of the apartment house 1 in the direction orthogonal to the extending direction of the partition wall 3. 7 ... are formed.

  Next, the operation of this conventional outer staircase structure will be described.

  In the conventional outer staircase structure thus configured, 13 steps and all stepped portions 7 are formed on the side 6 along the outer wall surface 5 on the front side of the apartment house 1.

For this reason, the protrusion amount D from the outer wall surface 5 of the staircase 2 is suppressed.
JP-A-6-317031

  However, in such a conventional staircase structure, 13 steps and all stepped portions 7 are formed on the side 6 along the outer wall surface 5 on the front side of the apartment house 1 of the staircase 2.

  For this reason, when the apartment house 1 is viewed from the front, the width direction dimension W of the front of the staircase 2 needs to be about 4M or more.

  Then, this invention makes it a subject to provide the staircase structure which can improve external appearance quality by making the width direction dimension W of a frontage into a desired dimension, suppressing the protrusion amount D from the building outer wall surface of a staircase. Yes.

  In order to achieve the above object, the invention described in claim 1 is provided with a stepped portion, and is composed of a side located in the upper part, a side located in the center part, and a side located in the lower part in the vertical direction. It is a staircase structure provided with a U-shaped staircase having three sides, and in the vertical direction, the number of steps of the side step located on the lower side is larger than the number of steps of the side step located on the upper side. It features a set staircase structure.

  Further, according to the second aspect of the present invention, the side located at the center in the vertical direction is positioned at the opening of the building where the U-shaped staircase is installed, and the front view is left-right asymmetric. In addition, the stepped structure according to claim 1 is characterized in that the stepped portion of the side located in the central portion is formed close to the lower side.

  Further, in the third aspect, in the vertical direction, the number of steps of the side portion located in the lower portion is set to 5 to 7, and the number of steps of the side step portion located in the central portion is set as follows. The staircase structure according to claim 1 or 2, wherein the number of steps of the side portion located at the upper portion is 3 to 5 as 4 to 6 steps.

  And what was described in Claim 4 is located in the opening part of the building in which the side located in the center part in the up-and-down direction is installed in the building where the U-shaped staircase is installed, and the room part provided in the building And the side located in the upper part or the lower part is at least partially overlapped in the depth direction, and a step is formed on at least one of the sides located in the upper part or the lower part. The staircase structure according to any one of the above is characterized.

  Moreover, what is described in Claim 5 is that the building is a unit building, and the U-shaped stairs are sandwiched between building units constituting the unit building located on both sides of the opening. The step structure according to any one of claims 2 to 4 is characterized.

  According to the first aspect of the present invention, the number of steps of the side step located on the lower side is set to be larger than the number of steps of the side step located on the upper side in the vertical direction. Yes.

  For this reason, the number of steps of the side step located in the center can be reduced by dispersing it in the step located on the upper and lower sides, so that the amount D of protrusion of the stairs from the outer wall surface of the building is suppressed. However, the widthwise dimension W of the frontage is relatively small and can be set to a desired dimension.

  Moreover, the height position of the side located in the said center part can be set comparatively high.

  Therefore, even if a landing area is set on the side of the central portion, a height direction dimension is provided between the lower surface of the landing area and the ground so that a person can pass below the landing area. it can.

  Further, according to the second aspect, the side located in the center in the vertical direction is located in the opening of the building where the U-shaped staircase is installed, and the front view is asymmetrical left and right As described above, the step portion of the side located in the central portion is formed close to the lower side.

  For this reason, in the side located in the central part, it is possible to form a landing that allows a person to pass down toward the upper side, and by making the lower part of the landing a common entrance or the like, it becomes monotonous. It is possible to change the appearance of the housing complex.

  Further, in the third aspect, in the vertical direction, the number of steps of the side portion located in the lower portion is set to 5 to 7, and the number of steps of the side step portion located in the central portion is set as follows. As the 4 to 6 steps, the number of steps on the side located at the top is 3 to 5 steps.

  For this reason, by setting the step portion of the side located in the lower part to be relatively large, it is possible to provide the step portion of the side located in the central portion on the side located in the central portion without setting many steps. A height that allows a person to pass below the landing, for example, a vertical dimension of 1900 mm or more can be secured.

  Therefore, the width direction dimension W of the front edge of the central part where the landing is formed can be 3600 mm or less including the width direction dimension (about 900 mm or more) of the landing front.

  And what was described in Claim 4 is that the side located in the center part in the up-and-down direction is located in the opening part of the building where the U-shaped staircase is installed, and the living room part provided in the building The sides located in the upper or lower part are at least partially overlapped in the depth direction, and a step portion is formed on at least one of the sides located in the upper or lower part.

  As described above, the stepped portion is formed on the side overlapping in the depth direction, whereby the amount D of the stairs protruding from the outer wall surface of the building can be reduced.

  Furthermore, it is located in the opening part of the building where the U-shaped staircase is installed, and the dimension in the frontage direction of the side constituting the center part can be set as a desired dimension to improve the appearance quality.

  Further, according to a fifth aspect of the present invention, a unit building is configured by sandwiching the U-shaped stairs between the building units located on both sides of the opening.

  For this reason, in a housing complex, when providing a shared space composed of the stairs between households provided in each building unit distributed on both sides of the U-shaped stairs, the space efficiency is good, Planning with improved layout flexibility is possible.

  Embodiments of the present invention will be described below with reference to the drawings.

  1 to 4 show a staircase structure according to the preferred embodiment of the present invention. The same or equivalent parts as those in the conventional example will be described with the same reference numerals.

  First, in terms of configuration, the staircase structure of this embodiment is provided in a unit building 10 as a two-story building composed of a combination of a plurality of building units 11..., 12, 12 as shown in FIG. It is.

  That is, in this unit building 10, the housing units 4 and 4 distributed to the left and right are partitioned by the partition wall 3 at the approximate center of the building, and the building units 12 and 12 positioned in the center in front view A U-shaped staircase 13 as a staircase having substantially the same frontage dimension W1 is provided.

  This U-shaped staircase 13 is located in the opening between the building units 11, 11 located on the left and right front sides of the front of the building units 11, and is about half (about 900 mm) in the depth direction. Only duplicated and installed.

  For this reason, a dimension D1 (D1 = about 900 mm) and a center edge 13a are projected from the outer wall surface 5 of the building unit 11 located closest to the front.

  The U-shaped staircase 13 is formed with an opening 14 formed in the central portion for continuous space in the vertical direction, and the individual entrances of the dwelling units 4 and 4 so as to surround the periphery of the opening 14. Three parts comprising an entrance porch part 18 located in front of the parts 4a, 4a, a left side 15 located at the upper part in the vertical direction mainly constituting the staircase part, a front side 16 located at the center part, and a right side 17 located at the lower part. And have sides.

  Among these, in this embodiment, the number of steps 17... Of the right side 17 located at the lower part in the vertical direction is set to 6 steps including the lower corner landing 23 having a substantially square shape when viewed from above. At the same time, the number of steps 21 of the front side 16 located in the center is five, including the landing 24 on the front entrance, and the number of steps 20 of the left side 15 located above is By using four steps including the floor entrance porch portion 18, in the vertical direction, the number of steps 20 on the left side 15 located on the upper side (three steps), the number of steps 20 on the right side 17 located on the lower side. The number of stages (5 stages) is set to increase.

  In addition, in this embodiment, the stepped portion 21 of the front side 16 is formed close to the right side of the right side 17 as viewed from the front, and is adjacent to one side of the lower corner landing place 23, and FIG. Is covered so that it cannot be visually recognized by a front view.

  In addition, as shown in FIG. 1, the landing 24 on the front entrance of the front side 16 is extended to a part of the left side 15 so as to be substantially L-shaped in a top view, By setting the number of steps 22 of each of the right side 17 and the front side 16 to be relatively large, the front side entrance 16 has a front-side dimension W1 of 3600 mm or less. The front direction dimension of the upper landing 24 is about 900 mm or more, and in this embodiment, W2 = about 1800 mm.

  Moreover, the height dimension of the up-down direction from the lower surface side of this landing on the front entrance 24 to the ground is ensured 1900 mm or more.

  For this reason, as shown in FIG. 2, a two-door entrance door 28 is used as a front entrance shared by the dwelling units 4 and 4 provided below the landing hall 24 on the front entrance.

  And the periphery of these landing hall steps 21 on the front entrance is configured to be covered by a handrail portion 26 having a plurality of translucent blindfold board members 27... The left and right asymmetric shapes are different in structure and appearance.

  In addition, in this embodiment, since the end edge portion 13a protrudes from the outer wall surface 5 of the building unit 11 located at the foremost side only by the dimension D1 (D1 = about 900 mm), the inside of the front side 16 And the landing hall 24 on the front entrance are located outside the outer wall surface 5, and the atrium 14 is located inside the unit building 10 relative to the outer wall surface 5. It is configured as follows.

  Next, the effect of the staircase structure of this embodiment will be described.

  In the staircase structure of the embodiment thus configured, in the vertical direction of the U-shaped staircase 13, the number of steps of the step portion 22 of the right side 17 located at the bottom is the number of steps of the step portion 20 of the left side 15 located at the top. It is set to be larger than the number of stages.

  Therefore, the number of steps of the step portions 21 of the front side 16 located in the central portion is distributed to the step portions 21 of the left side 15 and the right side 17 of the upper side and the lower portion 17 and the step portions 22 of the right side 17 so that the lower The number of steps 21... From the side corner landing 23 to the landing 24 on the front entrance can be reduced.

  Therefore, while suppressing the protrusion amount D1 of the U-shaped staircase 13 from the outer wall surface 5 constituting the unit building 10, the width direction dimension W1 of the frontage is relatively small, and a desired dimension, in this embodiment, W1 can be set to about 3600 mm.

  For this reason, for example, the area of the entrance porch part 18 which is a shared part located inside the building of the U-shaped staircase 13 can be minimized, and the projecting area of the roof part 29 can be reduced, An increase in the number of building materials can be suppressed.

  In addition, the front side 16 located in the center portion can set the height position in the vertical direction of the lower corner landing 23 started in the upward direction to be relatively high.

  Therefore, even if the landing area 24 etc. on the front entrance is set on the front side 16 of the central portion subsequent to the step portion 16..., The height is such that a person can pass below the landing area 24 on the front entrance. The height dimension in the vertical direction from the lower surface side of the landing hall 24 on the front entrance to the ground can be set to 1900 mm or more.

  Furthermore, in this embodiment, the front side 16 located at the center in the vertical direction is located at the opening between the building units 11 and 11 of the unit building 10 where the U-shaped staircase 13 is installed, and the front side. The step portions 21 of the front side 16 are formed adjacent to the lower corner landing 23 so as to be asymmetrical left and right as viewed from the lower side right side 17.

  For this reason, the front side 16 has a large landing area 24 on the front entrance that allows a person to pass downward toward the left side on the upper side. In this embodiment, the front side dimension is W2 = about 1800 mm. It is possible to create a sense of luxury by changing the appearance of the apartment house, which tends to be monotonous, by using a two-door entrance door 28 suitable as a common entrance below the landing 24 on the front entrance. I can do it.

  That is, in this embodiment, the number of steps 22... Of the right side 17 located at the bottom in the vertical direction is set to 6 steps including the lower corner landing 23 in a substantially square shape when viewed from above. The number of steps of the step part 21 of the front side 16 located in the central part is five, including the landing hall 24 on the front entrance, and the number of steps of the step part 20 of the left side 15 located at the upper part is the upper floor. By including four steps including the entrance porch portion 18, in the vertical direction, the number of steps (3 steps) of the left side 15 located on the upper side (three steps) of the step portion 20 on the right side 17 located on the lower side The number of stages (5 stages) is set to increase.

  In this way, by setting a relatively large number of step portions 20 on the right side 17 located in the lower portion, the front portion 16 on the front side 16 located in the center portion can be set even without setting many. A height at which a person can pass below the landing 24 on the front entrance provided on the side 16, for example, a vertical dimension of 1900 mm or more is secured.

  Therefore, the width direction dimension W1 of the front edge 16 of the central portion where the lower corner landing area 23 is formed has a width direction dimension of about 900 mm, and the width direction dimension of the front edge landing area 24 on the front entrance ( Even including about 1800 mm), it can be made 3600 mm or less.

  And the front side 16 located in the center part in the up-down direction is located in the center opening part of the unit building 10 where the U-shaped staircase 13 is installed, and the dwelling units 4, 4 etc. provided in the unit building 10 The living room portion and the left side 15 and the right side 17 positioned in the upper part or the lower part are at least partially overlapped in the depth direction, and stepped portions 20.

  Thus, in the depth direction, the outer wall surface 5 of the unit building 10 of the U-shaped staircase 13 is formed on the left side 15 and the right side 17 overlapping with the building units 11, 11 by forming the step portions 20. Can be reduced to about 900 mm.

  Furthermore, the U-shaped staircase 13 is installed and positioned in the opening of the unit building 10, and the dimension W1 in the front direction of the front side 16 constituting the center part is a desired dimension W1 having a good balance as appearance quality. = Approximately 3600 mm, the appearance quality can be improved.

  Moreover, the U-shaped staircase 13 is sandwiched between the building units 11 and 11 located on both sides of the opening to constitute a unit building 10.

  For this reason, in the apartment house constituted by the unit building 10, the U-shaped staircase 13 is interposed between the household units 4, 4 provided in the building units 11, 11 distributed on both sides of the U-shaped staircase 13. Even when the front porch 18 is provided as a shared space composed of the size of the frontage, the dimension W1 = 3600 mm is narrow compared to the conventional opening, so that the area is minimized and the space efficiency is good. Can do.

  Moreover, in this embodiment, the end edge portion 13a of the U-shaped staircase 13 protrudes from the outer wall surface 5 of the building unit 11, 11 located at the foremost side only by the dimension D1 (D1 = about 900 mm). Therefore, only the step portions 21... Constituting the stairs in the front side 16 and the landing area 24 on the front entrance are located outside the outer wall surface 5, and the overhang area of the roof portion 29 and the handrail portion 26 The increase in the number of building materials can be suppressed by reducing the extension length and the like.

  Furthermore, in this embodiment, the atrium 14 is configured to be located inside the unit building 10 with respect to the outer wall surface 5.

  For this reason, while preventing the rain water intrusion by the protruding roof part 29 to the entrance porch part 18 in front of the individual entrances 4a, 4a of each of the dwelling units 4, 4 on the first floor through the atrium part 14, Daylighting from above can be reached.

  Therefore, even if the entrance porch 18 on the first floor exists inside the entrance door 28 of the front door having a good appearance quality, a sufficient amount of light extraction and a feeling of opening can be obtained, and the degree of freedom of layout is increased. Improved planning is possible.

  3 and 4 show the staircase structure of Example 1 of the embodiment of the present invention.

  Note that portions that are the same as or equivalent to those in the above-described embodiment are described with the same reference numerals.

  In Example 1, instead of the vertical wall portion 25 and the handrail portion 26 of the above-described embodiment, a left and right symmetrical tiled deck tone handrail portion 30 as shown in FIG. 3 is provided.

  The tiled deck handrail portion 30 has two blindfolded board members 27 symmetrically in the left-right width direction with the junction between the landing 24 portion on the front entrance and the step portion 21. Is provided.

  In the staircase structure of Example 1 configured in this way, the front side 16 of the U-shaped staircase 13 having a left-right asymmetric structure is covered by the tiled deck handrail portion 30, and the appearance quality is improved. It can be good.

  Other configurations and operational effects are the same as or equivalent to those of the above-described embodiment, and thus the description thereof is omitted.

  The embodiment of the present invention has been described in detail above with reference to the drawings. However, the specific configuration is not limited to this embodiment, and design changes that do not depart from the gist of the present invention are not limited to this embodiment. Included in the invention.

  That is, in the staircase structure of the above-described embodiment, the number of steps of the U-shaped staircase 13 is the same as that of the vertical direction, and the step portion 22 of the right side 17 located at the lower portion includes the lower corner landing 23 having a substantially square shape when viewed from above. 6 steps, the step portion 21 of the front side 16 located in the center portion, including the landing 24 on the front entrance, the step portion 20 of the left side 15 located on the upper side, 5 steps, is the upper floor entrance. Including the pouch portion 18, the number of steps is set to four. However, the present invention is not limited to this. For example, the number of steps 22 on the right side 17 is set to 5 to 7 and the step 21 on the front side 16. 4 to 6 and the number of steps 20 on the left side 15 may be 3 to 5, and the number of steps on the right side 17 located below the number of steps 20 on the left side 15 located on the top. What is necessary is just to set so that the step number of the step part 22 may increase.

In the staircase structure of the best mode of the present invention, a U-shaped staircase is a horizontal sectional view showing a unit building in which the U-shaped staircase is disposed at the center of an opening between building units. It is a perspective view explaining the external appearance of the unit building where the staircase structure of embodiment is used. It is a staircase structure of Example 1 of an embodiment, and is a front view of a staircase part. It is a stepwise structure of Example 1 of an embodiment, and is a horizontal sectional view of an important section. It is a horizontal sectional view explaining the composition of an apartment house with the conventional staircase structure.

Explanation of symbols

10 unit building (building)
11, 12 Building unit 13 U-shaped staircase
13a Edge 15 left side (upper side)
16 Front side (center side)
17 Right side (lower side)
20, 21, 22
Step 23 Lower corner landing 24 Front entrance landing

Claims (5)

Each step portion is formed, and is a staircase structure provided with a U-shaped staircase having three sides consisting of a side located at the top in the vertical direction, a side located at the center, and a side located at the bottom,
A staircase structure characterized in that, in the vertical direction, the number of steps of the side step located on the lower side is set to be larger than the number of steps of the side step located on the upper side.   The side located at the center in the vertical direction is positioned at the opening of the building where the U-shaped staircase is installed, making the front view left and right asymmetrical, and the step of the side located at the center The staircase structure according to claim 1, wherein the staircase is formed close to the lower side.   In the vertical direction, the number of steps on the lower side is set to 5 to 7, and the number of steps on the side located in the center is set to 4 to 6, and 3. The staircase structure according to claim 1 or 2, wherein the number of steps is 3 to 5.   The side located in the center in the vertical direction is positioned at the opening of the building where the U-shaped staircase is installed, and the living room portion provided in the building and the side located in the upper or lower part are deep. 4. The step according to claim 1, wherein a step is formed on at least one of the sides located at the upper part or the lower part at least partially overlapping in the direction. 5. Stair structure. The said building is a unit building, The said U-shaped staircase is pinched | interposed between the building units which comprise this unit building located in the both sides of the said opening part, The Claim 2 thru | or 4 characterized by the above-mentioned. A staircase structure according to any one of the above.

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