JP5244022B2 - Stair railing mounting unit - Google Patents

Description

  The present invention relates to a stair railing mounting unit used for an open staircase or the like.

  Conventionally, an open staircase in which the side of the staircase is open is known. In general, on the side of an open staircase, there is a handrail that has a pillar that also serves as a fence for preventing falling, and a handrail body that is supported by the pillar at an inclination angle substantially the same as the inclination angle of the staircase. Provided.

  At the design stage, the length of the handrail body, the inclination angle of the handrail body, the arrangement interval of the columns, etc. are specified based on various design conditions such as the number of steps of the staircase, the height of the stepping board, the depth of the tread board, and the staircase gradient. For example, Patent Document 1 discloses a stair railing and its handrail. Among these, the arrangement interval of the handrails (posts) is determined by the interval between two through holes formed in a step plate (stepping plate) having a predetermined depth, and the length of the first handrail portion (handrail body) and The inclination angle is determined based on the number of steps and the step gradient.

JP 2000-257232 A

  However, at the construction site, the number of steps, the height of the stairs, the depth of the tread board, etc. are often adjusted as appropriate. Therefore, for the handrail body and its fixtures, simply changing the specifications of the staircase even if a handrail unit that has been identified based on the number of steps, the height of the staircase, and the slope of the staircase at the design stage is brought into the construction site. There are many cases that cannot be supported. Therefore, the handrail attachment structure and the handrail attachment work are handled on a case-by-case basis at the construction site, and there is a problem that the work efficiency is very poor.

  The present invention has been made in view of the above-described conventional problems, and an object thereof is to provide a staircase handrail attachment unit that can flexibly cope with differences in the staircase slope and the depth of the treadboard while standardizing the handrail attachment structure. It is said.

  The stair railing mounting unit of the present invention is configured to be extendable and contracted, and is provided with an arrangement member fixed to the upper surface of the tread board, with the extension direction parallel to the depth direction of the tread of the staircase, and the extension direction And a pair of support pillars whose lower end portions are supported so as to be in an upright posture by the arrangement member, and an inclination corresponding to a separation distance between the pair of support pillars. And a handrail main body supporting member for supporting the handrail main body.

  According to the present invention, the attachment structure of the handrail body is modularized in units of one step plate based on the fact that the depth of the step plate and the step gradient are closely related to each other. In general, when the depth of the tread of the stairs is large, the stair gradient tends to be gentle, and when the depth of the tread of the stairs is small, the stair gradient tends to be steep. According to the stair railing mounting unit of the present invention, the pair of struts are supported by the arrangement member configured to be extendable and contractible in the depth direction of the tread plate, and the distance between them is adjusted in the depth direction of the tread plate. The inclination of the handrail main body supporting member that supports the handrail main body is determined in accordance with the separation distance of the column. In other words, even if there is a sudden change in the depth of the stairs or the slope of the stairs at the construction site, the separation distance between the columns can be adjusted by the arrangement member, and the separation distance between the columns can be determined. The slope of is naturally determined. Therefore, it is possible to flexibly cope with the difference in the staircase gradient and the difference in the depth of the footboard while standardizing the handrail mounting unit. As a result, it becomes easy to set up the handrail attachment work on site, and the work efficiency can be improved. Furthermore, since the staircase handrail mounting unit of the present invention can be standardized regardless of the difference in the staircase slope and the depth of the step board, mass production of the staircase handrail mounting unit can be realized.

  The handrail main body support member includes a support portion that supports the handrail main body, and a connecting portion that is rotatably provided at both ends of the support portion and is attached to the upper ends of the pair of support columns. It is preferable that the connecting portion is fixed to the support column while being inclined along the inclination.

  According to this invention, the inclination of the support portion is specified in accordance with the separation distance of the connection portion with a simple and simple configuration by the support portion and the connection portion that is rotatably provided at both ends of the support portion. . Therefore, the support portion can be inclined according to the separation distance of the pair of struts by attaching the connection portion to the upper end portions of the pair of struts so that the separation distance of the connection portion matches the separation distance of the pair of struts. .

  Further, it is preferable that the pair of support columns each have a hollow long shape, the disposing member is partially inserted into a lower end portion, and the connecting portion is inserted into an upper end portion.

  According to the present invention, the support column has a hollow long shape, and is assembled by partially inserting the arrangement member into the connection portion of the handrail body support member and the lower end portion inside the upper end portion. And by adopting such a form, the outer diameter of the column becomes thick to some extent, and it is possible to ensure the ease of assembling each member and the rigidity of the column.

  Moreover, it is preferable that each said connection part is comprised so that adjustment of the insertion length inserted in the upper end part of said pair of support | pillar is respectively possible.

  According to this invention, the height of the handrail main body supported by the support portion can be adjusted by adjusting the insertion length inserted into the upper end portion of the support portion of the coupling portion to adjust the height of the support portion. Can be adjusted.

  The arrangement member includes a pair of separate bases, and the pair of bases are provided with contact portions that face each other in a direction orthogonal to the expansion / contraction direction and extend in the expansion / contraction direction, respectively. The pair of base portions may be integrated by being sandwiched by a clip in a direction perpendicular to the expansion / contraction direction in a state in which the uneven surface is formed on the contact surface and the uneven surfaces of the respective contact portions mesh with each other. preferable.

  According to the present invention, the two base portions are integrated by the clip in a state where the concave and convex surfaces of the abutting portions are engaged with each other, so that an arrangement member having an expansion / contraction function can be obtained with a simple configuration, and on the tread plate The state which specified the length of the whole arrangement | positioning member to the desired length is maintained before fixing to.

  Moreover, it is preferable that a fixing member is provided to fix a support provided on the side closer to the upper step board to the tip of the upper step board among the pair of support pillars.

  According to the present invention, since one of the columns is fixed by the fixing member, the fixed column can be supplementarily supported.

  ADVANTAGE OF THE INVENTION According to this invention, it can respond flexibly to the difference in a staircase slope or the depth of a footboard, standardizing the attachment structure of a handrail.

It is a perspective view for demonstrating an open staircase. It is a side view for demonstrating a handrail attachment unit roughly. It is the III-III sectional view taken on the line of FIG. It is the IV-IV sectional view taken on the line of FIG. It is a perspective view for demonstrating a base member. It is a perspective view for demonstrating an arrangement | positioning member. It is a top view for demonstrating an arrangement | positioning member. It is a perspective view for demonstrating a support | pillar. It is a perspective view for demonstrating a handrail main body support member. It is a side view for demonstrating a handrail main body support member. It is a perspective view for demonstrating a fixing member. It is a side view of the staircase for demonstrating a handrail attachment unit roughly, (a) shows the state which attached the handrail attachment unit to the staircase with a steep slope and the depth of a footboard small, (b) is a medium slope and footboard The state which attached the handrail attachment unit to the stairs where the depth of is medium is shown, (c) shows the state where the handrail attachment unit is attached to the stairs where the depth of the tread is large.

  Hereinafter, the stair rail attachment unit of the present embodiment will be described in detail with reference to the drawings.

  FIG. 1 is a perspective view for explaining an open staircase. The handrail attached to the open staircase is supported at a predetermined position in the height direction with a predetermined inclination by a handrail mounting unit fixed to each footboard S and the entire handrail mounting unit fixed to each footboard S. A handrail body 15. The handrail main body 15 is a long headboard attached to the upper part of the handrail attachment unit.

  FIG. 2 is a side view for schematically explaining the handrail mounting unit. 3 is a cross-sectional view taken along line III-III in FIG. 4 is a cross-sectional view taken along line IV-IV in FIG.

  As shown in FIGS. 1 to 4, the stair railing attachment unit of the first embodiment is supported in an upright posture by the disposing member 11 fixed to the upper surface of the step board S of the staircase and the disposing member 11. The pair of support columns 13, the handrail body support member 14 installed on the upper end portions of the pair of support columns 13, and the foot plate S <b> 2 provided on one step of the foot plate S <b> 1 to which the disposing member 11 is fixed are fixed. A fixing member 12.

  Hereinafter, although one unit of the stair handrail mounting unit of the present embodiment will be described, the handrail main body 15 is supported by an assembly of stair handrail mounting units installed one unit at a time relative to each step board S of the staircase.

  FIG. 5 is a perspective view for explaining the base members 11a and 11b. FIG. 6 is a perspective view for explaining the disposing member 11. FIG. 7 is a plan view for explaining the arrangement member.

  The disposing member 11 is a member for supporting the pair of support columns 13 in an upright posture in a state where they are separated by a desired distance. The disposing member 11 is fixed to the upper surface of each tread plate S along the open side of the open staircase.

  Specifically, as shown in FIGS. 5, 6, and 7, the disposing member 11 includes a pair of base portions 11 a and 11 b and a clip 11 c that sandwiches and integrates the pair of base portions 11 a and 11 b. Including. The disposing member 11 is configured to be expandable / contractable, and is fixed with the extending / contracting direction parallel to the depth direction of the footboard S.

  Each of the bases 11a and 11b has a substantially L shape in a side view and a substantially L shape in a plan view (see FIGS. 5 and 6). The base portions 11a and 11b are formed so as to extend horizontally, and the bottom portions 11a1 and 11b1 that are fixed to the upper surface of the tread plate S and the upright portions 11a2 and 11b2 that support the lower ends of one of the pair of support columns 13, respectively. Including. The base part 11a and the base part 11b are arranged on the tread board S in such a manner that the upright part 11a2 and the upright part 11b2 face each other across the bottom parts 11a1 and 11b1.

  A slit OP for fitting a part of the clip 11c is formed in the bottom portions 11a1 and 11b1. The slits OP are formed at two locations on each of the bottom portions 11a1 and 11b1 so as to penetrate in the vertical direction and extend in the expansion / contraction direction of the arrangement member 11 (see the arrow in FIG. 7). In addition, abutting portions 11a3 and 11b3 where the base portion 11a and the base portion 11b are in contact are provided on the side portions of the bottom portions 11a1 and 11b1. The contact portions 11a3 and 11b3 are formed in a plate shape extending in the expansion / contraction direction, and an uneven surface in which minute unevenness is alternately arranged on the side surface. The uneven surfaces of the contact portions 11a3 and 11b3 are mutually connected. It is arranged to face each other. Then, the concave and convex surfaces of both contact portions 11a3 and 11b3 mesh with each other to prevent the base portion 11a from shifting in the expansion / contraction direction with respect to the base portion 11b, and by releasing the meshing, both contact portions 11a3 and 11b3 can move relative to each other. It is comprised so that it may become. Further, by adjusting the size of the unevenness, it is possible to finely adjust the position of the base portion 11a with respect to the base portion 11b.

  Further, a plurality of screw holes SCR for inserting screws for fixing the bottom portions 11a1 and 11b1 to the tread plate S are formed in the bottom portions 11a1 and 11b1 so as to penetrate in the vertical direction. The bottom portions 11a1 and 11b1 are provided with two upright ribs 11a4 and 11b4 that extend in a direction perpendicular to the expansion and contraction direction. The ribs 11a4 and 11b4 are portions for supporting the cover member C that covers the bottoms 11a1 and 11b1.

  The upright portions 11a2 and 11b2 are portions of the bottom portions 11a1 and 11b1 that extend vertically upward from the top surfaces of the bottom portions 11a1 and 11b1. The support | pillar 13 demonstrated later is mounted | worn with this lower end part in this upright part 11a2, 11b2. That is, when adjusting the expansion / contraction of the arrangement member 11, the separation distance L of the pair of support columns 13 is specified by adjusting the distance between the upright portions 11a2 and 11b2 to be a predetermined separation distance.

  As shown in FIG. 6, the clip 11c is a substantially U-shaped member that opens downward, and a pair of vertically provided leg portions 11c1 and upper ends of the pair of leg portions 11c1 are substantially horizontal. And a horizontal portion 11c2 connected to the. With the contact portions 11a3 and 11b3 formed on the base portions 11a and 11b being in contact with each other, both the leg portions 11c1 are fitted into the respective slits OP of the base portions 11a and 11b, whereby both base portions are formed by the clip 11c. The contact portions 11a3 of 11a and 11b are held together. As described above, the two base portions 11a and 11b are joined to each other by the clip 11c so that the contact surfaces 11a3 and 11b3 are engaged with each other, so that the arrangement member 11 having an expansion / contraction function can be obtained with a simple configuration. In addition, before being fixed on the tread board S, the state in which the entire length of the arrangement member 11 is specified to a desired length is maintained.

  FIG. 8 is a perspective view for explaining the pair of support columns 13a and 13b.

  As shown in FIG. 8, the pair of columns 13 includes a long column 13 a provided on the base end side of the tread plate S, a short column 13 b provided on the tip side of the tread plate S, and the long column 13 a and the short column 13 b, respectively. And a height adjusting member 13c that is detachably provided so as to be orthogonal to the longitudinal direction of the column.

  The long column 13a is a member having a hollow long shape with a rectangular cross section. A concave sliding portion 13a1 that extends linearly in the longitudinal direction of the long column 13a is formed on the outer peripheral surface of the long column 13a. The long column 13a is installed with the portion where the sliding portion 13a1 is formed facing the tip of the step plate S2 that is one step above. Further, a notch 13a2 is formed at the lower end of the long support 13a. When the upright part 11b2 of the base part 11b is inserted into the lower end part of the long column 13a, the bottom part 11b1 protrudes from the notch 13a2 (see FIG. 3). The long support 13a is formed with an insertion hole 13A for mounting the height adjusting member 13c in a horizontal posture at a predetermined height.

  The short struts 13b have the same configuration as the long struts 13a except that they are formed slightly shorter than the long struts 13a. In addition, the code | symbol 13b1 in FIG.8 (b) represents the sliding part.

  The height adjusting member 13c is a pin-shaped member, and is inserted into an insertion hole 13A formed at a predetermined height of the support columns 13a and 13b in a substantially horizontal posture, and is engaged with a handrail body support member 14 described later. The handrail body support member 14 is supported at a predetermined position in the height direction (see FIG. 2).

  FIG. 9 is a perspective view for explaining the handrail main body support member 14. FIG. 10 is a side view for explaining the handrail main body support member 14.

  As shown in FIGS. 9 and 10, the handrail main body support member 14 includes a rod-shaped support portion 14 a that directly supports the handrail main body 15, and rod-shaped connection portions 14 b provided at both ends of the support portion 14 b. The support portion 14a and the two connecting portions 14b are centered on a first shaft 14c1 provided at one end portion of the support portion 14a and a second shaft 14c2 provided at the other end portion of the support portion 14a. Both are configured to be rotatable.

  The length SP of the support portion 14a is set to a predetermined length in advance. Moreover, as for each connection part 14b, the edge part on the opposite side of the edge part attached to the support part 14a is a free end. Furthermore, a plurality of (for example, two) height adjustment holes 14b1 are formed in each connecting portion 14b side by side along the longitudinal direction of the connecting portion so as to penetrate in the horizontal direction. A height adjusting member 13c is selectively inserted into the height adjusting hole 14b1. That is, the insertion length of the connecting portion 14b with respect to the columns 13a and 13b is determined depending on which of the plurality of height adjusting holes 14b1 of the connecting portion 14b is inserted with the height adjusting member 13c. For example, when it is desired to place the support portion 14a in the height direction and at a slightly higher position, the height adjustment hole 14b1 formed on the lower end side of the connecting portion 14b is selected and the height adjustment member 13c is inserted. .

  When each connecting portion 14b is attached to the upper end portion of the pair of support columns 13, the distance L ′ (see FIG. 10) in a state of hanging from the end portion of the support portion 14a and being parallel to each other is determined. Is adjusted to correspond to the separation distance L (see FIG. 2). At this time, the inclination angle (inclination) α of the support portion 14a is naturally determined by the length SP of the support portion 14a and the separation distance L ′.

  As for the handrail main body support member 14, one side of the connection part 14b is inserted in the upper end part of the long support | pillar 13a, and the other of the connection part 14b is inserted in the upper end part of the short support | pillar 13b. The height adjusting member 13c is inserted into an insertion hole 13A formed at a predetermined position of the upper end portion of each support column 13a, 13b, and further, a height adjusting hole formed at a predetermined position of the connecting portion 14b. 14b1 is inserted, maintains a horizontal attitude | position, and supports the connection part 14b to predetermined | prescribed height. In this way, the insertion length of the connecting portion 14b with respect to the upper ends of the columns 13a and 13b is adjusted. Thus, by adjusting the insertion length of the connecting portion 14b with respect to the upper ends of the columns 13a and 13b, the position of the support portion 14a in the height direction can be adjusted, and the height direction of the handrail main body 15 can be adjusted. The position can be adjusted.

  FIG. 11 is a perspective view for explaining the fixing member 12.

  As shown in FIG. 11, the fixing member 12 includes a fastening portion 12a and an engaging portion 12b that engages with the sliding portion 13a2 of the long support 13a to keep the long support 13a in an upright posture.

  The fastening portion 12a is fixed to the tip surface (vertical surface) of the stepping plate S2 that is one step higher by screwing or the like. The engaging portion 12b is formed integrally with the fastening portion 12a. When the lower end portion of the long column 13a is attached to the upright portion 11b2 of the arrangement member 11, the engaging portion 12b is engaged with the sliding portion 13a1 (see FIG. 4) along the sliding portion 13a2. Relative sliding.

  FIG. 12 is a side view of a staircase for schematically explaining the handrail attachment unit, and FIG. 12 (a) shows a state in which the handrail attachment unit is attached to a staircase having a steep slope and a small depth D of the tread plate S. FIG. 12B shows a state in which the handrail mounting unit is attached to a staircase having a medium slope and a medium depth D of the footboard S, and FIG. 12C shows a handrail attachment to a staircase having a gentle slope and the footboard S having a large depth D. The unit is attached. In addition, the stair railing attachment unit shown in FIGS. 12A to 12C shows only the disposing member 11 in a plan view and other members in a side view.

  As shown in FIGS. 12A, 12B, and 12C, such a stair railing mounting unit can be flexibly adapted to the difference in the stair gradient θ and the difference in the depth D of the footboard S. Can respond.

  For example, the depth D1 of the footboards S1, S2, and S3 in FIG. 12A, the depth D2 of the footboards S1, S2, and S3 in FIG. 12B, and the depth of the footboards S1, S2, and S3 in FIG. The relationship of D1 <D2 <D3 is established with D3. Further, the step gradient θ1 in FIG. 12A, the step gradient θ2 in FIG. 12B, and the step gradient θ3 in FIG. 12C have a relationship of θ1> θ2> θ3.

  As shown in FIGS. 12A to 12C, in the stair rail unit according to the present embodiment, the distance L between the pair of support columns 13 is appropriately set to the distance L1, the distance L2, and the distance L3 (L1 <L2 <L3). The distance L ′ of the connecting portion 14b is adjusted so that the inclination angle α of the support portion 14a of the handrail body support member 14 is substantially the same as the step gradient θ. Even if the step gradient θ and the depth D of the tread plate S are different, the same standard product can be used flexibly. In addition, when the depth D of the footboard S is large, the separation distance L between the pair of struts 13 can be widened to avoid the pair of struts 13 being biased in the direction of the depth D of the footboard S. The support column 13 can be made to function sufficiently as a fall prevention fence.

  A method for attaching the stair railing attachment unit will be described below.

  The stair rail attachment unit of Embodiment 1 is installed on the side (open side) of the open stair in the following procedure.

  First, an operator fixes the fixing member 12 to each front end portion of each tread plate S in a state where the tread plates of the stairs are respectively installed at predetermined positions. Specifically, the fixing member 12 is attached to the distal end portion of the footboard S by the operator fixing the fastening portion 12a of the fixing member 12 to the kicked surface (vertical surface) with screws. At this time, the worker fixes the fixing member 12 to each tread plate S so that the entire staircase is arranged in a line in plan view.

  Next, the operator fixes the disposing member 11 to the upper surface of each tread plate S. Specifically, the operator adjusts the disposing member 11 so that the upright portion 11a2 of the base portion 11a and the upright portion 11b2 of the base portion 11b are at a predetermined interval corresponding to the depth D of the tread plate S. Furthermore, the operator inserts the clip 11c into the slit OP to integrate the base portion 11a and the base portion 11b. Then, the operator specifies the distance between the upright portions 11a2 and 11b2, and screws and fixes the bottom portions 11a1 and 11b1 of the arrangement member 11 in an integrated state to the tread surface (horizontal plane).

  Next, an operator installs a pair of support | pillars 13, respectively. Specifically, the operator lowers the lower end portion toward the upper surface of the tread plate S with the sliding portion 13a1 of the long support column 13a facing the fixed member 12 side fixed earlier, and the upright portion of the base portion 11a. 11a2 is mounted inside. At this time, the engaging portion 12b of the fixing member 12 is engaged with the sliding portion 13a1, and the posture of the long support column 13a is supplementarily supported.

  In addition, the operator inserts the upright portion 11b2 of the base portion 11b into the lower end portion of the short support 13b. Thus, the long struts 13a and the short struts 13b are supported by the arrangement member 11 and the fixing member 12 in an upright posture in a state of being separated according to the interval between the upright portions 11a2 and the upright portions 11b2.

  Next, the operator constructs the handrail body support member 14 on the upper ends of the short support 13b and the long support 13a. Specifically, the separation distance L ′ between the pair of connecting portions 14 b of the handrail body support member 14 is matched with the separation distance L between the short support 13 b and the long support 13 a. That is, while maintaining the parallel state of the pair of connecting portions 14b, both ends of the support portion 14a are rotated around the axes SH1 and SH2 of the upper end portions of the respective connecting portions 14b, thereby tilting the support portion 14a. adjust. And an operator inserts the lower end side of each connection part 14b inside the upper end part of the long support | pillar 13a and the short support | pillar 13b. At this time, the operator fixes the height adjustment member 13c horizontally through the insertion holes 13A of the support columns 13a and 13b and the height adjustment holes 14b1 of the inserted connecting portion 14b. The position of the support portion 14a is adjusted in the height direction.

  As described above, the support columns 13a and 13b have a hollow long shape, and are assembled by being inserted into the connection portion 14b of the handrail body support member inside the upper end portion and the upright portions 11a2 and 11b2 of the arrangement member 11 inside the lower end portion. It is done. By adopting such a configuration, the outer diameters of the columns 13a and 13b are designed to be thick to some extent, and it is possible to ensure the ease of assembling each member and the rigidity of the columns 13a and 13b.

  The above operation is applied to each step board S, and the installation operation of the stair railing mounting unit is completed. Finally, the operator attaches the handrail main body 15 on the support portion 14a of the handrail main body support member 14, and the installation work of the handrail on the open stairs is completed.

  According to the above embodiment, the stair railing attachment unit of the present embodiment attaches the handrail main body 15 based on the fact that the depth D of the stair tread plate S and the stair gradient θ are closely related. The structure is modularized in units of one stepping plate S. In general, when the depth D of the step board S of the staircase is large, the staircase gradient θ tends to be gentle, and when the depth D of the stepboard S of the staircase is small, the staircase gradient θ is steep. Tend. According to the stair railing mounting unit of the present embodiment, the pair of support columns 13 are adjusted in the distance D direction of the footboard S by the disposing member 11 configured to be extendable and contractable in the depth D direction of the footboard S. The inclination α of the support portion 14a of the handrail body support member 14 that supports the handrail body 15 is determined according to the separation distance L of the pair of support columns 13. That is, even if the depth D of the stair tread S and the stair gradient θ are suddenly changed in the field, the separation distance L of the support pillars 13 can be adjusted by the arrangement member 11, and the separation distance L of the support pillars 13 can be determined. Therefore, the inclination α of the support portion 14a of the handrail main body support member 14 is naturally determined. Therefore, it is possible to flexibly cope with the difference in the staircase gradient θ and the difference in the depth D of the footboard S while standardizing the handrail mounting unit. As a result, it becomes easy to set up the handrail attachment work on site, and the work efficiency can be improved. Furthermore, since the staircase handrail mounting unit of the present embodiment can be standardized regardless of the difference in the staircase gradient θ and the depth D of the footboard S, mass production of the staircase handrail mounting unit can be realized.

  In the above embodiment, each of the support columns 13a and 13b has a hollow long shape, the connection portion 14b of the handrail body support member 14 is inserted into the upper end portion, and the upright portion 11a2 of the arrangement member 11 is inserted into the lower end portion. Although the embodiment in which 11b2 is inserted has been described, the present invention is not limited to this. For example, the support columns 13a and 13b have a rod shape, the connecting portion 14b of the handrail body support member 14 has a hollow shape, the upright portions 11a2 and 11b2 of the arrangement member 11 have a hollow shape, and the connecting portion 14b has a support shape 13a and 13b. The upright part 11a2, 11b2 may be externally fitted to the lower end part of the support pillars 13a, 13b.

  Moreover, although the bottom part 11a1 of the base part 11a of the arrangement | positioning member 11 and the bottom part 11b1 of the base part 11b were clamped by the clip 11c and integrated in the said embodiment, this invention was limited to this. It is not something. For example, the bottom portion 11a1 and the bottom portion 11b1 may have hollow shapes with different diameters, and the base portion 11a and the base portion 11b may be integrated by inserting the other bottom portion into one bottom portion.

  In the above embodiment, the base 11a and the base 11b are integrated with one clip 11c. However, the present invention is not limited to this, and the base 11a and the base 11b are formed by a plurality of clips. And may be integrated.

  In the above-described embodiment, a plurality of height adjustment holes 14b1 are formed in the connecting portion 14b, and one insertion hole 13A is formed in each of the upper end portions of the support columns 13a and 13b. It is not limited to. For example, even in a form in which one height adjusting hole 14b is formed in the connecting portion 14b and a plurality of insertion holes 13A arranged in the longitudinal direction are formed in the upper end portions of the support posts 13a, 13b, the support posts 13a, The insertion length with respect to the upper end of 13b can be adjusted, and the position of the handrail body support member 14 in the height direction can be adjusted.

DESCRIPTION OF SYMBOLS 11 Arrangement member 11a, 11b Base part 11c Clip 12 Fixing member 13 Support | pillar 14 Handrail main body support member 14a Support part 14b Connection part 15 Handrail main body S, S1, S2, S3 Footboard L, L1, L2, L3 Separation distance D, D1, D2, D3 depth

Claims (6)

An arrangement member configured to be extendable and configured to be parallel to the depth direction of the tread of the staircase and fixed to the upper surface of the tread;
A pair of struts that are spaced apart in the telescopic direction and whose lower ends are supported so as to be in an upright posture by the arrangement member;
A staircase handrail attachment unit including a handrail body support member that is installed on an upper end portion of the pair of struts and supports a handrail body with an inclination according to a separation distance between the pair of struts.   The handrail main body support member includes a support portion that supports the handrail main body, and a connecting portion that is rotatably provided at both ends of the support portion and is attached to the upper end portions of the pair of support columns. The stair railing mounting unit according to claim 1, wherein the connecting portion is fixed to the column in a state of being inclined along.   The staircase according to claim 2, wherein each of the pair of support columns has a hollow long shape, the disposing member is partially inserted in a lower end portion, and the connecting portion is inserted in an upper end portion. Handrail mounting unit.   4. The stair railing attachment unit according to claim 3, wherein each of the connecting portions is configured such that an insertion length inserted into an upper end portion of the pair of support columns can be adjusted.   The arrangement member includes a pair of separate base portions, and the pair of base portions are provided with contact portions that face each other in a direction orthogonal to the expansion and contraction direction and extend in the expansion and contraction direction, respectively. A pair of base portions are integrated by being sandwiched by a clip in a direction perpendicular to the expansion and contraction direction in a state where a surface is formed and the concave and convex surfaces of the respective contact portions are engaged with each other. The stair railing mounting unit according to any one of 4.   The staircase according to any one of claims 1 to 5, wherein a fixing member is provided for fixing a support provided on a side closer to the step board on the upper step to the tip of the step board on the upper step. Handrail mounting unit.

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