JP2009138353A - Object attached to building - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an object attached to a building allowing a base body supporting a member for walking to serve also as a brace to reduce the number of members. <P>SOLUTION: Step board members being the members for walking are arranged on an inner side of a spiral stair way being a square or substantially square structural body when viewed in a plane. These step board members are supported by the base body arranged on lower sides of these step board members, connected with the structural body, and formed by base members 51-53. Extended parts 52B, 53B having the direction of width being the vertical direction and the direction of length being the horizontal or substantially horizontal direction and being extended are formed on the base members 52, 53 of the base body. The direction of length of these extended parts 52B, 53B is the direction forming inclined angles for respective side parts D-G of the square or substantially square structural body. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a building accessory attached to a building, and includes, for example, an outer staircase and an outer corridor installed outside a building such as an apartment house, a balcony, and an emergency staircase installed inside the building. It can be used for indoor stairs.

Balconi, which is a building accessory attached to a building, generally has a structure having a quadrangular or substantially quadrangular structure in plan view, and as shown in Patent Document 1 below, Inside the structure, a deck member that is a walking member for walking or standing on the top is disposed, and this deck member is disposed on the lower side of the deck member. It is supported by joists that are the base body to which it is joined.
Japanese Patent Application No. 2006-70520

  In a balconi having a structure having a quadrangular or substantially quadrangular structure in plan view, in addition to a member such as a joist which is a base body, the structure is deformed into a rhombus shape in plan view by the action of an external load or the like. In order to prevent this, conventionally, a brace using a turnbuckle or the like is used, which increases the number of members used. Such a structure has a structure having a quadrangular or substantially quadrangular structure in plan view, for example, an external staircase or an external corridor installed outside a building such as an apartment house, Balconi, This also occurs for indoor stairs including emergency stairs installed inside.

  An object of the present invention is to provide a building accessory in which a base body that supports a walking member also serves as a brace, whereby the number of members can be reduced.

  The building accessory according to the present invention has a structure that is quadrangular or substantially quadrangular in plan view, and a walking member for walking or standing on the inside is disposed inside the structure, In the building accessory in which the walking member is disposed on the lower side of the walking member and supported by the base body coupled to the structure, the width direction of the base body is the vertical direction. An extension portion extending in a horizontal direction or a substantially horizontal direction is formed, and the length direction of the extension portion is a side of each of the square or the substantially square of the structure. It is the direction which makes the inclination angle with respect to.

  In this building accessory, the base body that is disposed below the walking member and is joined to the structure that is rectangular or substantially rectangular in plan view has a width direction that is the vertical direction. An extending portion is formed that extends in the horizontal direction or the substantially horizontal direction, and the length direction of the extending portion is relative to each side of the quadrangular or substantially quadrangular shape of the structure. Since it is a direction that forms an inclination angle, the extending part of the base body plays a role as a brace for preventing the structure body from being deformed into a rhombus shape in plan view. The base body also serves as a brace, and the number of members to be used can be reduced accordingly.

  In the present invention described above, the quadrangular or substantially quadrangular shape may be a square or a substantially square shape, or may be a rectangular or a substantially rectangular shape.

  In addition, the above-described extending portion may have a lower direction as a width direction, in other words, may protrude downward from a main body portion of the base body, and an upper direction as a width direction, in other words, a base body. It may protrude upward from the main body portion of the base body, or may protrude both downward and upward from the main body portion of the base body.

  In addition, the measures for providing the extension portion on the base body are arbitrary, and one example is to join the member to be the extension portion to the member to be the main body of the base body with a coupler such as welding or a bolt. In another example, the base body is formed to include a plate-like base member, and the extended portion is a bent portion that is bent in the vertical direction of the base member. is there.

  According to the latter example, since the extending portion of the base body can be formed by providing the plate-like base member with the bent portion bent in the vertical direction, the extending portion is easily provided on the base body. be able to. In this case, the bending direction may be the lower side or the upper side, and the base member may be provided with a bent portion bent downward and a bent portion bent upward.

  In addition, when a bent portion that is bent downward is formed on the base member, the base member on which the bent portion is formed is used as an upper base member, and the above-described base body is used as the upper base member. A lower base member disposed at a position lower than the upper base member and shifted laterally, and formed on the upper base member and the lower base member. While placing the aforementioned walking member, the bent portion of the upper base member may be supported by the lower base member.

  According to this, since the bent portion of the upper base member is supported by the lower base member, the upper base member is a plate-like member, and is placed on the upper base member. Even if the weight of the walking member or the weight of the person on the walking member acts on the upper base member, the lower base member prevents the upper base member from being bent downward and deformed. be able to.

  The lower base member may support the bent portion of the upper base member by combining the lower base member and the bent portion, or place the bent portion on the lower base member. Or both of them.

  Furthermore, not only the upper base member but also the lower base member may have a plate shape. When the upper base member and the lower base member are both plate-shaped in this way, the entire lower surface of the walking member placed on these base members by the lower base member and the upper base member. Or you may make it support substantially the whole lower surface.

  According to this, each base member can effectively support the walking member placed on these base members.

  The present invention can be applied to any building accessory having a structure that is quadrangular or substantially quadrilateral in plan view. For example, the building accessory is provided outside a building such as an apartment house. Outside staircases and outside corridors to be installed, Balconi, and indoor stairs including emergency stairs to be installed inside the building. , Staircases that are partly staircases.

  In the case where the present invention is applied to a staircase in which the whole is a turning staircase or a part of which is a turning staircase, and the above-described structure forms a turning staircase, the above-mentioned walking member is This is the tread board member of the surrounding stairs.

  In this way, when the structure forms a staircase, as described above, when the bent portion of the upper base member is supported by the lower base member, the lower base member is Of the first to fourth members forming the respective sides of the quadrangle or the substantially quadrilateral, the first member and the second member adjacent to the first member are coupled, and the upper base member is connected to the second member. A member and a third member that is adjacent to the second member and is disposed opposite to the first member, and the four of the four corners of the quadrangle or the substantially quadrangle, The corner formed by the second member and the third member is positioned diagonally with respect to the position of the center of the surrounding staircase. In the center of the staircase, the upper base member is connected to the center of the center of the staircase. Position and parts to support at the periphery of this position It may be not arranged.

  According to this, the upper base member is coupled to the second member and the third member which is a member adjacent to the second member and is disposed opposite to the first member, Among the four corners, the position of the corner formed by the second member and the third member is a diagonal position with respect to the position of the center of the surrounding staircase, Even if a member for supporting the upper base member around the center of the staircase and at the periphery of the staircase is not arranged for reasons such as the complexity of the structure of the staircase, the upper base member The bent portion is supported by the lower base member, and the lower base member is coupled to the first member and the second member adjacent to the first member, so that the upper base member is connected to the lower base member. It can be supported effectively using members. That.

  According to the present invention, the base body that supports the walking member also serves as a brace, thereby obtaining the effect that the number of members can be reduced.

  EMBODIMENT OF THE INVENTION Below, the form for implementing this invention is demonstrated based on drawing. The building accessory according to the present embodiment is an outer staircase installed outside the apartment house.

  FIG. 1 is a plan view of the outer staircase, FIG. 2 is a view taken in the direction of arrow S2 in FIG. 1, and FIG. 3 is a view taken in the direction of arrow S3 in FIG. As shown in these drawings, this outer staircase is formed to include six pillars 1 to 6, and among these pillars 1 to 6, the four pillars 3 shown in FIG. A portion surrounded by ˜6 is a portion of the surrounding stairs 20 which is a quadrangular or substantially quadrangular structure in a plan view among the outer stairs. An upper end of the first straight staircase 21 and a lower end of the second straight staircase 22 are connected to the turning staircase 20, and the straight staircases 21 and 22 form an angle of 90 degrees or substantially 90 degrees. The columns 1 and 2 are erected at the lower end of the first straight staircase 21.

  The first straight staircase 21 is a staircase for ascending and descending from the finishing concrete 19 (see FIGS. 2 and 3) where the outer staircase according to the present embodiment is installed to the surrounding staircase 20. The straight staircase 22 is a staircase for ascending and descending from the surrounding staircase 20 to the outer corridor of the apartment house where the outer staircase according to the present embodiment is installed outside.

  As shown in FIG. 1, the first straight staircase 21 is composed of a counter girder member 23 inside the circuit stair 20 and a counter girder member 24 outside the circuit stair 20. The member 23 is disposed between the pillar 1 and the pillar 3, and the counter girder member 24 is disposed between the pillar 2 and the pillar 4. Further, the second straight staircase 22 is constituted by a structural girder member 25 on the inner side of the rotating staircase 20 and a vertical girder member 26 on the outer side of the rotating staircase 20. The strut member 26 is disposed between the pillar 5 and a non-illustrated pillar installed in the outer corridor. .

  Further, the rotating staircase 20 is constituted by the first beam member 27 and the second beam member 28 arranged on the outer side of the rotating staircase 20, and the first beam member 27 includes the pillar 4 and the pillar 6. The first beam member 27 is disposed in the extending direction to the side of the staircase 20 around the outer girder member 24 around the staircase 20 that forms the first straight staircase 21. The second beam member 28 is disposed between the column 5 and the column 6, and the second beam member 28 is a spar member on the outer side of the surrounding staircase 20 that forms the second straight staircase 22. 26 is arranged in an extending direction toward the staircase 20 side.

  An inner member 29 that is L-shaped in a plan view and has a box shape is disposed on the inner side of the peripheral staircase 20, and is arranged at a position outside the inner member 29. Of the columns 1 to 6, a column 3 disposed on the inner side of the rotating stairs 20 is erected at a position farther from the rotating stairs 20 than the member 29 and on the inner side of the rotating stairs 20.

  In addition, the surrounding inner member 29 may be a single box-shaped member having an L-shape in plan view, and may be a combination of two box-shaped members manufactured corresponding to the first straight staircase 21 and the second straight staircase 22. It may be formed.

  As shown in FIG. 1, the staircase 20 is provided with three steps A to C. By these steps A to C, the staircase 20 according to this embodiment is shown in FIG. 1. It ’s going to rise counterclockwise. Further, the lowest step A is formed by two tread members 31, 32, the middle step B is also formed by two tread members 33, 34, and the highest step C is also two tread members 35. , 36. These tread board members 31 to 36 which are members for walking in the present embodiment are arranged in the direction of the surrounding stairs 20. In addition, each step portion of the first straight staircase 21 is formed by a tread plate member 37 arranged for each of these step portions, and each step portion of the second straight staircase 22 is also formed for each of these step portions. One tread board member 38 is formed. The upper end of the first straight staircase 21 is connected to the lowest step A of the rotating staircase 20, and the lower end of the second straight staircase 22 is connected to the uppermost step C of the rotating staircase 20.

  A kick plate member is disposed between the respective tread plate members 37 of the first linear staircase 21, and a kick plate member is also disposed between the respective tread plate members 38 of the second linear staircase 22. Yes.

  The walking direction at the lowest step A of the rotating staircase 20 matches the direction of the first straight staircase 21, and the walking direction at the uppermost step C of the rotating staircase 20 matches the direction of the second straight staircase 22. Yes. For this reason, the walking direction at the lowest step A and the walking direction at the highest step C make an angle of 90 degrees or approximately 90 degrees.

  In the present embodiment, as shown in FIG. 1, a plurality of tread members that form the lowest step A of the turning staircase 20 to form the stepped plate member 31 and the respective stepped portions of the first straight staircase 21. 37, an overhanging tread board member 39 having a small width dimension as a dimension in the walking direction is arranged between the tread board member 37A of the uppermost step portion, and is arranged at the same height position as the tread board member 31. Between the overhanging tread board member 39 and the tread board member 37A, a kick board member extending in the vertical direction is disposed. Further, among the plurality of step board members 38 that form the uppermost step C of the surrounding staircase 20 and form the respective step parts of the second linear staircase 22, An overhanging treadboard member 40 having a small width in the walking direction is disposed between the treadboard member 38A and the overhanging treadboard member 40 disposed at the same height as the treadboard members 35 and 36, and the treadboard. A kick plate member extending in the vertical direction is disposed between the member 38A and the member 38A.

  As shown in FIGS. 1 to 3, the staircase 20 includes a handrail 7 provided for each of the first and second beam members 27, 28, and the first and second beam members 27, 28. A decorative member 8 that covers the outer surface is arranged, and the handrail 9 provided for each of the spar girder members 23 and 24 and the decorative member 10 that covers the outer surface of the spar girder members 23 and 24 are also provided on the first straight staircase 21. The handrail 11 provided for each of the spar girder members 25 and 26 and the decorative member 12 that covers the outer surfaces of the spar girder members 25 and 26 are also disposed on the second straight staircase 22.

  FIG. 4 shows the step board members 31 to 36 of the surrounding staircase 20, the handrail 7, the decorative member 8, the step board member 37 of the first straight staircase 21, the handrail 9, the decorative member 10, and the step board member of the second straight staircase 22. FIG. 38 is a plan view of an outer staircase according to the present embodiment, in which 38, the handrail 11, the decorative member 12, the above-described surrounding inner member 29, and the overhang tread members 39 and 40 are omitted.

  As shown in FIG. 4, a base body 50 is disposed on the rotating staircase 20, and all the step board members 31 that form the respective step portions A to C of the rotating staircase 20 on the base body 50. The entire lower surface or substantially the entire lower surface of .about.36 is placed, whereby the tread board members 31 to 36 are supported by the base body 50. In addition, the base body 50 is formed by a combination of three base members 51 to 53 provided for the respective step portions A to C of the surrounding staircase 20, and the difference in height between the respective step portions A to C is determined. These base members 51 to 53 arranged with corresponding upper and lower steps are bent sheets of thick metal plates.

  L-shaped brackets 54 and 55 are attached to the first beam member 27 of the rotating staircase 20, and the end portion of the base member 51 of the lowest stepped portion A on the first beam member 27 side is placed on the bracket 54. The end of the intermediate step B on the first beam member 27 side of the base member 52 is placed and supported on the bracket 55. In addition, L-shaped brackets 56 and 57 are attached to the second beam member 28 of the staircase 20, and the end portion of the base member 52 of the middle step B on the second beam member 28 side is placed on the bracket 56. Thus, the bracket 57 has an end portion on the second beam member 28 side of the base member 53 of the uppermost step C placed on and supported by the bracket 57.

  In addition, a first horizontal member 58 is provided at the end of the surrounding staircase 20 on the first straight staircase 21 side so as to be orthogonal to or substantially orthogonal to the first straight staircase 21. A second horizontal member 59 arranged orthogonally or orthogonally to the second linear staircase 22 is also provided at the end of the linear staircase 22 side. The end of the base member 51 of the lowermost step A on the first linear staircase 21 side is placed on and supported by the first horizontal member 58, and the second straight line of the base member 53 of the uppermost step C is provided. The end portion on the staircase 22 side is placed on and supported by the second horizontal member 59.

  The brackets 54 to 57 are connected to the base members 51 to 53 and the horizontal members 58 and 59 are connected to the base members 51 and 53. The brackets 54 to 57, the base members 51 to 53, and the horizontal member 58 are supported. , 59 and the base members 51 and 53 are coupled by a coupling 90 such as a bolt.

  Further, as will be described later, the end of the middle step B on the base member 52 side of the base member 52 is bent downward and supported by the base member 51 (see FIG. 15). The end of the base member 53 side of the part C on the base member 52 side is bent downward and supported by the base member 52 (see FIG. 16).

  Therefore, the entire circumference or substantially the entire circumference of the base body 50 constituted by the base members 51 to 53 is the first and second that form the periphery of the rotating staircase 20 except for the inner portion of the rotating staircase 20. Of the base members 51 to 53 that are supported by the beam members 27 and 28 and the first and second horizontal members 58 and 59 and constitute the base body 50, the entire circumference or substantially the entire circumference of the base body 50. A portion adjacent to the base member 51 in the base member 52 and a portion adjacent to the base member 52 in the base member 53 are the base members 51, 53 which are lower than the base members 52, 53. 52.

  Note that these base members 51 to 53 are coupled with a coupling tool such as a bolt as will be described later with reference to FIGS. 15 and 16, but these base members 51 to 53 are coupled together by welding or the like in advance. It may be an assembled product.

  Further, as shown in FIG. 4, brackets 41 are attached to the spar members 23 and 24 of the first linear staircase 21 so that both ends of the tread plate member 37 of the first linear staircase 21 are mounted and supported. In addition, brackets 42 on which both end portions of the tread plate member 38 of the second linear staircase 22 are mounted and supported are also attached to the spar members 25 and 26 of the second linear staircase 22.

  FIG. 5 is a plan view of an outer staircase according to the present embodiment in which the base body 50 shown in FIG. 4 is omitted. FIG. 6 is a diagram showing a connection point between the rotating staircase 20 and the first straight staircase 21 shown in FIG. 7 is a cross-sectional view taken along line S7-S7 in FIG. As shown in FIG. 6, L-shaped brackets 60 and 61 are coupled to the columns 3 and 4, and these brackets 60 and 61 are connected to the upper ends of the spar members 23 and 24 of the first linear staircase 21. The parts are coupled by a coupling tool 62, and the first horizontal member 58 is also coupled by a coupling tool 63. In addition, a horizontal member 64 disposed on the first linear staircase 21 side with respect to the first horizontal member 58 is coupled to the brackets 60 and 61 by a coupler 63, and as shown in FIG. The overhanging tread board member 39 described with reference to FIG. 1 is placed on and supported by the upper surface of the horizontal member 64 that is coupled back to back with the horizontal member 58 by the coupling tool 65.

  Note that the lower ends of the spar members 23 and 24 of the first straight staircase 21 are coupled to the columns 1 and 2 shown in FIG.

  FIG. 8 is a view showing a connection portion between the first beam member 27 and the second beam member 28 of the turning staircase 20 shown in FIG. 5, and FIG. 9 is a sectional view taken along line S9-S9 in FIG. is there. As shown in FIGS. 6 and 8, L-shaped brackets 66 and 67 are coupled to the columns 4 and 6, and these brackets 66 and 67 are connected to both ends of the first beam member 27 of the rotating staircase 20. Are coupled by a coupling tool 68.

  FIG. 10 is a view showing a connection point between the surrounding staircase 20 and the second straight staircase 22 outside the surrounding staircase 20 shown in FIG. 5, and FIG. 11 is a sectional view taken along line S11-S11 of FIG. It is. As shown in FIGS. 8 and 10, L-shaped brackets 69 and 70 are coupled to the columns 6 and 5, and the brackets 69 and 70 are connected to both end portions of the second beam member 28 of the rotating staircase 20. Are coupled by a coupling tool 71.

  As shown in FIGS. 6 and 10, L-shaped brackets 72 and 73 are coupled to the columns 3 and 5. , 26 are coupled by a coupler 74, and the second horizontal member 59 is also coupled by a coupler 75. Further, a horizontal member 76 disposed on the second linear staircase 22 side with respect to the second horizontal member 59 is coupled to the brackets 72 and 73 by a coupling tool 75, and as shown in FIG. The overhanging tread plate member 40 described in FIG. 1 is placed on and supported by the upper surface of the horizontal member 76 that is coupled back to back by the coupling member 77 with the frame member 59.

  A cross-sectional view taken along line S12-S12 in FIG. 6 is shown in FIG. As shown in FIG. 12, the first horizontal member 58 on the first straight staircase 21 side and the second horizontal member 59 on the second straight staircase 22 side in the surrounding staircase 20 shown in FIG. There are upper and lower steps corresponding to the difference in height between the three steps A to C of the surrounding staircase 20.

  1 has a vertical length as shown in FIG. 12, and the vertical length corresponds to the three steps of the staircase portion 20. As shown in FIG. The surrounding inner member 29, which exceeds the height difference between the parts A to C and is formed in a box shape having an L shape in plan view as described above, is provided on the column 3 with the first straight staircase 21 further. The bracket 60 that couples the beam member 23 and the first horizontal member 58 and the bracket 72 that couples the vertical beam member 25 of the second linear staircase 22 and the second horizontal member 59 to the column 3. What is covered, in other words, hides these brackets 60 and 72 (see also FIG. 1).

  13 is a cross-sectional view taken along line S13-S13 in FIG. 5 showing the first beam member 27 of the surrounding staircase 20, and FIG. 14 is a cross-sectional view taken along line S14-S14 in FIG. FIG. As shown in FIG. 13, there is an upper and lower step between the L-shaped bracket 54 and the L-shaped bracket 55 attached to the first beam member 27, and FIG. As shown in FIG. 5, there is an upper and lower step between the L-shaped bracket 56 and the L-shaped bracket 57 attached to the second beam member 28, and the L-shaped bracket 55 and There is no upper or lower step between the L-shaped bracket 56.

  FIG. 15 shows a state in which the base members 51 and 52, which are the bent products of the above-described sheet metal, are coupled and supported to the brackets 54 and 55 by the coupling tool 90, and FIG. A state is shown in which the base members 52 and 53 which are bent products are coupled and supported by the coupling tool 90.

  As shown in FIG. 15, the base member 51 includes a horizontal main body 51A placed on the bracket 54 and the first horizontal member 58, and an end of the main body 51A on the base member 52 side. And a rising portion 51B rising from the main body 51A. As shown in FIGS. 15 and 16, the base member 52 includes a horizontal main body 52A placed on the brackets 55 and 56, and an end on the base member 51 side of the main body 52A. It consists of an extended portion 52B that bends downward and reaches the main body 51A of the base member 51, and an upright portion 52C that is provided at the end of the main body 52A on the base member 53 side and rises from the main body 52A. Further, as shown in FIG. 16, the base member 53 includes a horizontal main body 53A placed on the bracket 57 and the second horizontal member 59, and the base member 52 side of the main body 53A. The extending portion 53B is bent downward from the end portion and reaches the main body portion 52A of the base member 52.

  These raised portions 51B and 52C and the extending portions 52B and 53B which are bent portions are those whose width direction is the vertical direction and whose length direction is the horizontal direction or the substantially horizontal direction, This length direction is the above-mentioned first and second beam members 27 and 28 and the horizontal member 64 that form the respective sides of the rotating staircase 20 that is a quadrangular or substantially quadrangular structure in plan view. It is in a direction that forms an inclination angle with respect to 76.

  Further, as shown in FIG. 15, the extended portion 52 </ b> B that is a bent portion of the base member 52 is placed on the main body 51 </ b> A of the base member 51 that is lower than the base member 52. In addition, the extending portion 52B is coupled to the rising portion 51B of the base member 51 by a coupling tool 91 such as a bolt. For this reason, the extension part 52 </ b> B is supported by the base member 51. Further, as shown in FIG. 16, the extended portion 53 </ b> B that is a bent portion of the base member 53 is placed on the main body portion 52 </ b> A of the base member 52 that is lower than the base member 53. In addition, the extending portion 53B is coupled to the rising portion 52C of the base member 52 by a coupling tool 92 such as a bolt. For this reason, the extension part 53 </ b> B is supported by the base member 52.

  By placing the above-described tread plate members 31 to 36 of the surrounding staircase 20 on the base members 51 to 53, the lowermost step A shown in FIG. The members 33 and 34 form the middle step B of the turning staircase 20, and the tread plate members 35 and 36 form the uppermost step C of the turning staircase 20, respectively.

  And when each step part AC of the surrounding staircase 20 is formed in this way, the extension part 52B of the base member 52 shown in FIG. 15 is the lowest step part A and the middle step part B. The extension portion 53B of the base member 53 shown in FIG. 16 becomes a kick plate member between the middle step portion B and the uppermost step portion C.

  The tread board members 31 to 36 of the rotating staircase 20, the tread board member 37 of the first straight staircase 21, the tread board member 38 of the second straight staircase 22, and the overhanging tread board members 39 and 40 described above are mounted. 17 and 18, FIG. 17 is a plan view of the footboard member, and FIG. 18 is a cross-sectional view taken along line S18-S18 in FIG. 17. . 17 and 18 show the case of the foot plate member 31 of the turning staircase 20 as a representative example of each of the foot plate members 31 to 40.

  A hollow portion 80 that communicates from one end portion of the tread plate member 31 to the other end portion is provided inside the tread plate member 31 that is mainly composed of concrete or the like and has a relatively large thickness. A hole 81 reaching the cavity 80 is formed in the lower surface of the tread plate member 31. A nut 82 is inserted into the hollow portion 80. The nut 82 includes a main body portion 82A that is formed in a polygonal shape that prevents rotation with respect to the hollow portion 80, and a convex portion 82B that protrudes from the main body 82A toward the hole 81. And have. Further, a leaf spring member 83 is coupled to the nut 82, and the leaf spring member 83 is provided with a facing portion 83A that faces the surface of the main body portion 82A of the nut 82 opposite to the convex portion 82B side. .

  The nut 82 is inserted into the cavity 80 from one end of the tread plate member 31, and the nut 82 is pushed and moved in the cavity 80 by a finger. When the nut 82 reaches the position of the hole 81, The projecting portion 82B is fitted into the hole 81 by the spring force of the facing portion 83A of the leaf spring member 83, whereby the nut 82 is positioned and arranged at a predetermined position of the tread plate member 31.

  As shown in FIG. 18, a hole 85 into which the shaft portion 84A of the bolt 84 is inserted into the base member 51 on which the tread plate member 31 is placed and serves as a member that supports the tread plate member 31. The shaft portions 84A of the respective bolts 84 are inserted into the respective two holes 85 corresponding to the number of the nuts 82 from below the base member 51, and the bolts 84 are rotated. The tread board member 31 is coupled to the base member 51 with bolts 84 and nuts 82.

  In the present embodiment, as shown in FIG. 1, one column 3 arranged inside the surrounding staircase 20 and the step board members 31 to 31 forming the step portions A to C of the surrounding staircase 20. The surrounding inner member 29 having the L-shape in plan view described above is disposed in the space between the surroundings 36, and the surrounding inner member 29 serves as a spacer for filling the space. The surrounding inner member 29 serving as a spacer is attached to the column 3 with a bracket or the like (not shown). This attachment is performed using brackets 60 and 72 shown in FIGS. You may go.

  In addition, in this embodiment, the pillar 3 and the surrounding inner member 29 are separate members. However, as a pillar instead of the pillar 3, the pillar 3 and the surrounding inner member 29 are integrated in a square or substantially rectangular shape in plan view. May be used.

  FIG. 19 is a view similar to FIG. 5 in which the respective base members 51 to 53 that are constituent members of the base body 50 are indicated by two-dot chain lines. The rotating staircase 20 has a quadrangular or substantially quadrangular structure in plan view. In this structure, the horizontal member 64, the first and second beam members 27 and 28, and the horizontal member 76 are in plan view. The first side D is formed by the horizontal member 64, the second side E is formed by the first beam member 27, and is a member that forms each side D to G of the quadrangle or the substantially square. The three side portions F are formed by the second beam member 28, and the fourth side portion G is formed by the horizontal member 76.

  The horizontal member 64 is the first member of the structure, the first beam member 27 is the second member of the structure, the second beam member 28 is the third member of the structure, and the horizontal member. Reference numeral 76 denotes a fourth member of the structure.

  In this embodiment, as can be seen from the above description, the base members 51 to 53 forming the base body 50 are provided with the horizontal member 64 via the brackets 54 to 57 and the first and second horizontal members 58 and 59. And the first and second beam members 27, 28 and the horizontal member 76. The horizontal member 64, the first and second beam members 27, 28, and the horizontal member 76 are rectangular or substantially rectangular in plan view. Accordingly, the base members 51 to 53 are coupled to the structure.

  As described above, the extending portions 52B and 53B, which are bent portions, are formed on the base members 52 and 53 with a width dimension in the vertical direction, and the length directions of these extending portions 52B and 53B are formed. As can be seen from FIG. 19, since it is a direction that forms an inclination angle with respect to each side portion D to G of the structure, an external load or the like acts on the surrounding staircase 20 that is the structure. Even if the surrounding staircase 20 is deformed into a rhombus shape in plan view due to an external load or the like, the extending portions 52B and 53B function as braces that resist the deformation.

  Since these extension parts 52B and 53B form the base body 50 for placing and supporting the tread board members 31 to 36 on top, the brace is formed by the base body 50. Therefore, according to the present embodiment, the members are shared, and it is not necessary to prepare a separate brace, so the number of members to be used can be reduced.

  Further, since the extending portions 52B and 53B are bent portions formed by bending the end portions of the base members 52 and 53 made of sheet metal, the extending portions 52B and 53B serving as braces can be easily formed. Can do.

  Furthermore, since each base member 51-53 has a large area which supports the whole lower surface of the tread board members 31-36 shown by FIG. 1, or substantially the whole lower surface, these base members 51-53 are Even if it is made of sheet metal, the tread plate members 31 to 36 can be effectively supported by the base members 51 to 53.

  Furthermore, the extension part 52B provided in the upper base member 52 than the base member 51 in the lowest step part is the main body part 51A of the base member 51 in the lower part than the base member 52 as described in FIG. The extension portion 52B is coupled to the upright portion 51B of the base member 51 by the coupler 91, so that the extension portion 52B is supported by the base member 51. . For this reason, even if the base member 51 is formed of sheet metal, the base member depends on the weight of the footboard members 33 and 34 placed on the base member 52 and the weight of the person riding on the footboard members 33 and 34. The base member 51 can prevent the 52 from being bent and deformed downward.

  Further, as described with reference to FIG. 16, the extension portion 53 </ b> B provided on the base member 53 above the middle step base member 52 is the main body portion 52 </ b> A of the base member 52 below the base member 53. The extending portion 53B is coupled to the rising portion 52C of the base member 52 by the coupling tool 92, and thus the extending portion 53B is supported by the base member 52. . For this reason, even if the base member 53 is also formed of a sheet metal, the base member 53 depends on the weight of the footboard members 35 and 36 placed on the base member 53 and the weight of the person riding on the footboard members 35 and 36. The base member 52 can prevent the 53 from bending downward and deforming.

  Further, in the present embodiment, the base member 51 includes the horizontal member 64 and the first and second beams that are the first to fourth members that form the sides D to G of the quadrangle or the substantially quadrilateral of the rotating staircase 20, respectively. Of the members 27, 28 and the horizontal member 76, the base member 52 is coupled to the horizontal member 64 serving as the first member and the first beam member 27 serving as the second member adjacent to the first member. Is a first beam member 27 that is a second member, and a second beam member 28 that is a member adjacent to the second member and is a third member disposed opposite the first member. And the position of the corner formed by the second member and the third member among the four corners of the quadrangle or the substantially quadrilateral is the position of the center of the turning staircase 20 The diagonal staircase 20 has a base line A member for supporting the material 52 around the center of the staircase 20 and at the periphery of this position is not disposed. However, the base member 52 has an extension supported by the base member 51 as described above. Since the protruding portion 52B is provided, the base member 52 is effectively supported by the first and second beam members 27 and 28 and the base member 51 supported by the horizontal member 64 and the first beam member 27. Will be able to do it.

  In other words, the position of the central part of the rotating staircase 20 and the peripheral part of this position have a large level difference between the upper and lower parts, resulting in a complicated structure. A member for supporting the base member 52 cannot be disposed at the position and the peripheral portion of this position. However, in the present embodiment, the base member 52 is supported by the first and second beam members 27 and 28. Since the base member 51 is supported by the horizontal member 64 and the first beam member 27, the base member 52 can be effectively supported.

  In addition, according to the present embodiment, braces and joists that are members different from the base members 51 to 53 are provided in the lower floor portion of the staircase 20, in other words, in the lower portions of the base members 51 to 53. Therefore, it is possible to improve safety and appearance.

  In the embodiment described above, the base body 50 of the surrounding staircase 20 is formed by three base members 51 to 53, and the extended portions 52 </ b> B and 53 </ b> B of the base members 52 and 53 are braces of the surrounding staircase 20. Therefore, the number of braces is two, but the number of braces may be one or three or more by making the number of base members forming the base body 50 other than three. Further, the extension direction of the braces may be set to an arbitrary direction different from the direction shown in FIG. 19 by setting the arrangement position of the base member forming the base body.

  Moreover, the extension direction of the brace by the extension part of the base member is set between the pillar cores of the pillars 3 and 6 arranged in the diagonal position among the four pillars 3 to 6 of the turning stairs 20 or in the vicinity of the pillar cores. It is good also as the direction which connects between the column cores of the pillar 4 and the pillar 5 which are arrange | positioned in the diagonal position, or between the column core vicinity, and according to this, the surrounding staircase which uses the extension part of the base member as the brace The strength of 20 can be further improved.

  Further, as shown in FIG. 19, the horizontal member 64 which is the first member of the rotating staircase 20 which is a quadrangular or substantially quadrangular structure in plan view, and the extending portion 52B of the base member 52 are formed. The angle, the angle formed by the extending portion 52B of the base member 52 and the extending portion 53B of the base member 53, and the extending portion 53B of the base member 53 and the horizontal member 76 which is the fourth member of the surrounding staircase 20 are formed. It is preferable that each of the angles is the same or substantially the same size, and according to this, the magnitude of the load supported by the horizontal member 64, the extending portions 52B and 53B, and the horizontal member 76 is equalized. Or it can be made substantially equal.

  The present invention has a quadrangular or substantially quadrangular structure in plan view, and is used for, for example, an indoor staircase including an outer staircase, an outer corridor, a balconi, and an emergency staircase inside a building such as an apartment house. be able to.

FIG. 1 is a plan view showing an outer staircase for an apartment house that is a building accessory according to an embodiment of the present invention. FIG. 2 is a view taken in the direction of arrow S2 in FIG. FIG. 3 is a view taken in the direction of arrow S3 in FIG. FIG. 4 is a view similar to FIG. 1 in which the tread members and the like forming the turning step, the first straight step, and the second straight step shown in FIG. 1 are omitted. FIG. 5 is a view similar to FIG. 1 with the base body shown in FIG. 4 omitted. FIG. 6 is a diagram showing a connection point between the circuit staircase and the first straight staircase shown in FIG. 7 is a cross-sectional view taken along line S7-S7 in FIG. FIG. 8 is a diagram showing a connection point between the first beam member and the second beam member in the surrounding staircase shown in FIG. 5. 9 is a cross-sectional view taken along line S9-S9 in FIG. FIG. 10 is a diagram showing a connection point between the turning staircase and the second straight staircase on the outside of the turning staircase shown in FIG. 11 is a cross-sectional view taken along line S11-S11 in FIG. 12 is a cross-sectional view taken along line S12-S12 of FIG. FIG. 13 is a cross-sectional view taken along line S13-S13 of FIG. 5 showing the first beam member of the surrounding staircase. FIG. 14 is a cross-sectional view taken along line S14-S14 in FIG. FIG. 15 is a view similar to FIG. 13 showing a state in which the base member forming the base body is coupled and supported to the first beam member of the staircase via the bracket. FIG. 16 is a view similar to FIG. 14 showing a state in which the base member forming the base body is coupled and supported to the second beam member of the staircase via the bracket. FIG. 17 is a plan view of the foot board member for showing a coupling structure of the foot board member and the member on which the foot board member is placed. 18 is a cross-sectional view taken along line S18-S18 in FIG. It is the same figure as FIG. 5 which entered the base body with the dashed-two dotted line.

Explanation of symbols

20 stairs around 21 first straight staircase 22 second straight staircase 27 first beam member that is second member 28 second beam member that is third member 31 to 36 tread member that is a walking member 50 base body 51 to 53 base Member 52B, 53B Extension part which is bending part 64 Horizontal member which is 1st member 76 Horizontal member which is 2nd member DG Each side part of quadrangle or quadrangle in planar view

Claims (8)

  The structure has a quadrangular or substantially quadrangular structure in a plan view, and a walking member for walking or standing on the inside is disposed inside the structural body, and the walking member is used for the walking. In the building accessory provided below the member and supported by a base body coupled to the structure body, the base body has a vertical direction in the width direction and a horizontal direction in the length direction. An extending portion extending in a substantially horizontal direction is formed, and the length direction of the extending portion is a direction in which an inclination angle is formed with respect to each side of the square or the substantially quadrilateral of the structure. A building accessory characterized by being.   The building accessory according to claim 1, wherein the base body is formed to include a plate-like base member, and the extending portion is a bent portion that is bent in the vertical direction of the base member. A building accessory characterized by   3. The building accessory according to claim 2, wherein the bent portion is bent downward, the base member on which the bent portion is formed is an upper base member, and the base body is the upper base. And a lower base member disposed at a position lower than the upper base member and shifted laterally, and formed on the upper base member and the lower base member. The building accessory is characterized in that the walking member is placed on a base member, and the bent portion is supported by the lower base member.   4. The building attachment according to claim 3, wherein the bent portion is supported by the lower base member by combining the lower base member and the bent portion. Ancillary items.   The building accessory according to claim 3, wherein the bent portion is supported by the lower base member by placing the bent portion on the lower base member. .   The building attachment according to any one of claims 3 to 5, wherein the lower base member is also plate-shaped, and the lower base member and the upper base member are placed on these base members. A building attachment characterized by supporting the entire lower surface or substantially the entire lower surface of the walking member.   The building accessory according to any one of claims 3 to 6, wherein the structure forms a rotating staircase, and the walking member is a step board member of the rotating staircase.   The building accessory according to claim 7, wherein the lower base member is a first member of the first to fourth members that form the side portions of the square or the substantially square of the surrounding stairs, The upper base member is coupled to the second member adjacent to the first member, and the upper base member is a member adjacent to the second member and disposed opposite to the first member. Of the four corners of the quadrangle or the substantially quadrangle, the corner formed by the second member and the third member is positioned at the center of the turning stairs. A member for supporting the upper base member at the position of the center of the rotating staircase and the peripheral portion of the position is disposed on the rotating staircase. Building features characterized by not

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