JP4799193B2 - Corrugated plate support structure and inner side plate - Google Patents

Description

  The present invention provides a step plate support structure in a turn staircase provided on a support column installed inside a turn-around portion of a turn staircase to support the inner end of the step plate, and an inner turn side plate used in the step plate support structure About.

  For example, in a wooden house building, when a staircase is formed by attaching a plurality of step boards or kick boards to a portion sandwiched between walls on both sides such as a handrail wall, a support plate whose upper end surface is formed in a staircase shape A step plate support structure is generally employed in which (sarasara girders) are attached along the side surfaces of the wall bodies on both sides, and both end portions of the step plate are fixed and supported on the upper end surface of the support plate.

  On the other hand, for example, in a staircase of a wooden house building, a staircase is formed by arranging a plurality of step plates so as to go around, for example, 90 degrees or 180 degrees around a support pillar provided at an end of a wall. There is a case. According to such a surrounding staircase, the inner end portion of the narrow step plate is supported on the side surface of the support column having a narrow width inside the surrounding portion. For example, the insertion groove is provided on the side surface of the support column. Even if the inner end is inserted and fixed, the support length is short, and the corrugated plate may not be supported stably with sufficient support force. For this reason, step plate support structures in various surrounding stairs for obtaining a sufficient support force have been developed (see, for example, Patent Document 1, Patent Document 2, and Patent Document 3).

Here, in the unit staircase of Patent Document 1, a step plate support member in which a groove for supporting and fixing the inner end portion of the step plate is attached along the side surface of the support column, and the step plate support member is connected via the step plate support member. The inner end is supported by the support column. Further, the step plate mounting device for the staircase around Patent Document 2 is to attach a step metal bracket without providing a groove in the support column, and to support the inner end of the step plate to the support column via the metal plate. is there. Further, in the surrounding staircase structure of Patent Document 3, a step plate support member having an upper end surface formed in a step shape is attached along the side surface of the support column, and is projected so as to protrude from the step plate support member. A receiving metal fitting is attached to each height position, and the inner end portion of the corrugated board is supported by the corrugated board supporting member and the receiving metal fitting.
Japanese Patent No. 2506204 Japanese Patent No. 3408959 Japanese Patent No. 3348161

  In the corrugated plate support structure described in each of the above patent documents, the inner end of the corrugated plate can be stably supported by the narrow portion around the support column, while the corrugated plate in the narrow portion is supported. Since the fixing work takes time, development of a support structure for the inner end of the corrugated plate that can be performed more easily and smoothly is desired. In addition, in the narrow part around the support column, the installation work of the skirting board provided at the joint part between the support column and the step board or the kick board is also a troublesome work. Development of a support structure that facilitates the development is desired.

  The present invention has been made paying attention to such a conventional problem, and can be easily and smoothly applied in a narrow portion around the support column, and stably supports the inner end portion of the corrugated plate. And a stair plate support structure in a staircase where a baseboard can be easily attached to a joint portion between a support column and a step plate or a kick plate without requiring labor-intensive work, and the stair step plate An object is to provide an inner side plate used in a support structure.

  The present invention is a step plate support structure that is provided on a support column installed inside a turn-around portion of a surrounding staircase and supports an inner end portion of the step plate, and is provided along the side surface of the support column. A step plate support member comprising a side plate and an overhanging bracket is attached, and the inner end portion of the step plate is positioned and supported by the step plate support member. The inner side plate includes the step plate and the kick plate. Including a strip-shaped thick plate portion on the upper side sandwiching a stepped positioning step portion for positioning the embedded plate, and a cut-out thin plate portion on the lower side, and the overhang metal fitting is formed from the positioning step portion of the step plate portion. The inner end portion is attached to the notched thin plate portion with an interval corresponding to the thickness of the step plate downward, and the inner end portion of the step plate is sandwiched between the strip-shaped thick plate portion. Positioning and supporting the strip-shaped thick plate portion, By providing a stepped plate support structure in around stairs are arranged in strip form along the joint to the supporting pillar of write plate to form a skirting, it is obtained by achieving the above object.

  Further, the stepped plate support structure of the present invention includes a umbilical portion in which the positioning step portion of the step plate portion protrudes forward from the positioning step portion of the kick plate portion, and the inner end of the step plate is provided in the umbilic portion. It is preferable that the tip portion of the portion is positioned and locked.

  Furthermore, in the corrugated board support structure of the present invention, the strip-like thick board portion arranged along the upper surface of the corrugated board is formed with a width of 5 mm or less, whereby the baseboard having a height of 5 mm or less is It is preferable to be provided along the upper surface of the step plate.

  Furthermore, the stepped plate support structure of the present invention attaches the inward side plate of the stepped plate support member along the side surface of the support column with a wall base material interposed between the side surface of the support column. You can also.

  Further, the present invention provides an inner side plate that is used by being attached to a support column installed inside a turning portion of the turning staircase in the stepped board supporting structure according to any one of the above-described steps, An upper strip-shaped thick plate portion sandwiching a stepped positioning step portion for positioning the kick plate, and a lower cut-out thin plate portion, and the step plate and the kick plate along the positioning step portion An inner end portion of the inner plate is positioned, and the strip-shaped thick plate portion is disposed in a strip shape along a joint portion of the step plate and the kick plate to the support pillar to form a baseboard. By providing the above, the above object is achieved.

  According to the step plate support structure in the surrounding staircase of the present invention or the inner side plate used in the step plate support structure, it is possible to easily and smoothly construct the narrow portion around the support column. The baseboard can be stably supported, and the baseboard can be easily attached to the joint portion between the support column and the step board or the kick board without requiring laborious work.

  A stepboard support structure 10 in a surrounding staircase according to a preferred embodiment of the present invention shown in FIG. 1 is a support pillar 11 installed at an end of a staircase partition wall which is a wall around a staircase, for example, in a wooden house building. The inner ends of the plurality of step plates 12a, 12b, and 12c that constitute a rotating staircase that is provided so as to go around 180 degrees are centered on the support pillar 11 in a narrow portion around the support pillar 11 efficiently and sufficiently. It was adopted to enable stable support and fixing with support force.

  That is, the corrugated board support structure 10 of this embodiment is a support structure that is attached to the support pillar 11 installed on the inner side of the turning portion of the turning staircase and supports the inner end portions of the corrugated boards 12a, 12b, and 12c. Then, along the side surfaces 11a and 11b of the support column 11, step plate support members 13a and 13b including inner side plates 14a and 14b and an overhang fitting 15 are attached, and the step plate 12a is attached by the step plate support members 13a and 13b. , 12b, and 12c are positioned and supported while being positioned. Further, the inner side plates 14a, 14b are upper strip-like thick plate portions 18a, 18b sandwiching stepped positioning step portions 17a, 17b for positioning the step plates 12a, 12b, 12c and the kick plates 16a, 16b, 16c. And the notched thin plate portions 19a and 19b on the lower side, and the overhang fitting 15 has a space corresponding to the thickness of the step plates 12b and 12c below the positioning step portions 17a and 17b of the step plate portion. Are attached to the notched thin plate portions 19a and 19b, and the inner end portions are positioned and supported so as to sandwich the inner end portions of the step plates 12b and 12c between the thick plate portions 18a and 18b. The plate portions 18a and 18b are arranged in a strip shape along the joint portions of the step plates 12a, 12b, and 12c and the kick plates 16a, 16b, and 16c to the support pillar 11 so as to form the baseboard 20. To have.

  Further, in the present embodiment, the positioning step portions 18a and 18b of the step board portion are provided with the umbilical portion 21 protruding forward from the positioning step portions 18a and 18b of the kick plate portion. The front end portions of the inner end portions of the plates 12a, 12b, and 12c are positioned and locked.

  In the present embodiment, the support pillar 11 that is arranged inside the surrounding portion of the surrounding staircase and serves as the center of the surrounding portion is a wooden square member having a square square cross-sectional shape with a side of about 60 to 150 mm, for example. As a framework member of the staircase partition wall, it is vertically arranged at the end of the staircase partition wall. The support pillar 11 includes a first inner side plate 14a of the first step plate support member 13a and a second inner side plate 14b of the second step plate support member 13b along a pair of adjacent side surfaces 11a and 11b. It is attached.

  The first inner side plate 14a is a side plate that is attached along one side surface 11a of the support column 11 that is the tip surface of the staircase partition wall, and as shown in FIGS. 2 (a) and 2 (b), the step plate 12a, 12b, 12c and the upper plate-like thick plate portion 18a sandwiching the stepped positioning step portion 17a for positioning the kick plates 16a, 16b, and the lower cut-out thin plate portion 19a. Along the positioning step portion 17a of the first inner side plate 14a, the inner end portions of the step plates 12a, 12b, 12c and the kick plates 16a, 16b are notched at the edges, and the strip-like thick plate from the thin plate portion 19a side. By pressing toward the portion 18a, the positioning step 17a is used as a guide for smooth positioning. And the strip | belt-shaped thick board part 18a is arrange | positioned in strip | belt board shape on the outer side of the said junction part along the junction part to the support pillar 11 of the step board 12a, 12b, 12c and the kick board 16a, 16b. 20 will be formed.

  Further, the first inner side plate 14a is made of a thick plate member having a thickness of the strip-shaped thick plate portion 18a of, for example, about 10 to 40 mm, and the upper end thereof is a step plate attached along the one side surface 11a of the support column 11. It has the shape cut | disconnected in step shape according to the step number of 12a, 12b, 12c. The first inner side plate 14a has a lower portion sandwiching the positioning step 17a as a notched thin plate portion 19a so as to have a thickness of, for example, about 4 to 30 mm. It is divided into a notched thin plate portion 19a that is covered and a strip-shaped thick plate portion 18a that is exposed to the upper front side of the surrounding staircase and becomes the baseboard 20. The positioning step portion 17a has a shape along these front side contour shapes at the attachment positions of the inner end portions of the step plates 12a, 12b, and 12c and the inner end portions of the kick plates 16a and 16b to the support column 11. Yes. While the side end surfaces of the inner end portions of the step plates 12a, 12b, 12c and the kick plates 16a, 16b are notched so as to face the thin plate portion 19a, the edges of these inner end portions are turned around and below the stairs. By abutting the positioning stepped portion 17a from the back side, these inner end portions can be positioned on the one side surface 11a of the support column 11 easily and accurately.

  In the present embodiment, the second inner side plate 14b is a side plate that is attached along the adjacent side surface 11b adjacent to the lower floor side of the one side surface 11a of the support pillar 11, as shown in FIG. The upper strip-shaped thick plate portion 18b sandwiching the stepped positioning step portion 17b for positioning the 12c and the kick plate 16c, and the lower notched thin plate portion 19b. The edge portions of the inner end portions of the step plate 12c and the kick plate 16c are pressed from the notched thin plate portion 19b side toward the strip-shaped thick plate portion 18b side along the positioning step portion 17b of the second inner side plate 14b. As a result, these inner end portions are positioned. And the strip | belt-shaped thick board part 19b is arrange | positioned in strip | belt board shape on the outer side of the said junction part along the junction part to the support pillar 11 of the step board 12c and the kick board 16c, and is strip | belt-shaped of the 1st inward side board 14a. The baseboard 20 is formed continuously with the thick plate portion 18a.

  Similarly to the first inner side plate 14a, the second inner side plate 14b is disposed on the upper front side of the step around the positioning step 17b and has a thickness of, for example, about 10 to 40 mm. 18b and a notched thin plate portion 19b having a thickness of, for example, about 4 to 30 mm, which is disposed on the lower back side of the staircase around the positioning step portion 18b.

  As the overhang bracket 15 attached at intervals corresponding to the thickness of the step plates 12a, 12b, 12c below the positioning step portions 17a, 17b of the step plate portion, for example, an L shape bent into a right-angled L shape. A bracket member made of a steel material 15a and a reinforcing diagonal material 15b can be used. For example, in a state where one side portion of the L-shaped steel material 15a is arranged so as to protrude to a predetermined height along the lower surfaces of the step plates 12a, 12b, 12c, the other side portion is arranged on the inner side plates 14a, 14b. The overhang bracket 15 is firmly fixed to the inner side plates 14a and 14b by closely contacting the notched thin plate portions 19a and 19b and driving a screw or the like from the side toward the notched thin plate portions 19a and 19b and the support column 11. Will be. In addition, one side portion with the inner end portion of the step plates 12a, 12b, 12c sandwiched between one side portion of the L-shaped steel material 15a and the strip-shaped thick plate portions 18a, 18b in the positioning step portions 17a, 17b. By inserting a screw or the like toward the step plates 12a, 12b, and 12c from below, the step plates 12a, 12b, and 12c are firmly positioned and fixed to the support column 11.

  In the step board supporting structure 10 of the present embodiment having the above-described configuration, before the step boards 12a, 12b, and 12c are installed in the wraparound portion of the staircase, the one side surface 11a and the adjacent side surface 11b of the support column 11 are provided. Then, the first inner side plate 14a and the second inner side plate 14b are attached at predetermined height positions corresponding to the height positions of the step plates 12a, 12b, 12c. When the first inner side plate 14a and the second inner side plate 14b are attached, the inner end portions of the step plates 12a, 12b, 12c are positioned using these positioning step portions 17a, 17b as guides, and the positioning step portions 17a, The inside of the step plates 12a, 12b, and 12c is attached by attaching the overhang fitting 15 from below so that the inner end portions of the step plates 12a, 12b, and 12c are sandwiched between the strip-shaped thick plate portions 18a and 18b of the 17b. The end portion can be firmly supported and fixed to the support column 11 via the step plate support members 13a and 13b.

  In addition, for example, a sasara girder whose upper end surface is formed in a staircase shape is attached to the wall surface of the outer wall opposite to the support column 11 sandwiching the step plates 12a, 12b, and 12c in the surrounding portion of the surrounding staircase. Thus, the outer end portions of the step plates 12a, 12b, and 12c can be supported and fixed by a support structure similar to the conventional one. Further, along the wall surface of the outer wall body, the outer end portions of the step plates 12a, 12b, and 12c and the outer end portions of the kick plates 16a, 16b, and 16c having the same configuration as the inner side plates 14a and 14b are provided. Corrugated plate support installed on the support column 11 by installing an outer side plate composed of an upper strip-shaped thick plate portion sandwiching a positioning step portion having a shape along the front profile and a lower cut-out thin plate portion. Similar to the members 13a and 13b, the outer end portions of the step plates 12a, 12b and 12c are sandwiched between the overhang fittings attached to the notched thin plate portions and the strip-like thick plate portions of the positioning step portions, The end can also be supported and fixed.

  In addition, the straight staircases on the upper floor side and lower floor side of the surrounding staircase have a support structure that supports both end portions of the corrugated board by attaching, for example, a sasara girder to the wall surface of the wall. In the same way as the outside of the surrounding staircase, the positioning stepped portion of the shape along the front side contour shape of the outer end portion of the step plate and the outer end portion of the kick plate is formed on the wall surfaces of the both sides of the straight staircase portion. Install a straight part side plate consisting of the upper strip-shaped thick plate part sandwiched between and the lower cut-out thin plate part, between the overhanging bracket attached to the cut-out thin plate part and the strip-shaped thick plate part of the positioning step part It is also possible to support and fix the step plate so as to sandwich both end portions of the step plate. In the configuration of such a straight staircase part, in particular, by pressing the both ends toward the belt-like thick plate part side from the back side of the staircase through the notch thin plate part on both sides of the lower floor side first-stage kick plate, The positioning step 17a can be used as a guide for smooth positioning, and the mounting work of the step board and the kick board is facilitated, and the first stage kick board is attached after the side board and the step board are attached. This makes it possible to increase the degree of freedom of the construction procedure.

  And according to the corrugated board support structure 10 of this embodiment provided with the above-mentioned structure, it is possible to construct easily and smoothly in a narrow part around the support pillar 11, and the inner end portions of the corrugated boards 12a, 12b, and 12c. Can be stably supported, and the skirting board 20 can be easily formed without requiring laborious work at the joint between the support column 11 and the step plates 12a, 12b, 12c and the kick plates 16a, 16b, 16c. Can be attached to.

  That is, according to the present embodiment, the positioning stepped portions 17a and 17b of the inner side plates 14a and 14b attached prior to the support pillar 11 are used as guides and the inner end portions of the step plates 12a, 12b and 12c are rotated around the staircase. Positioning can be accurately performed from below, and the step plates 12a, 12b, and 12c are smoothly inserted and arranged at predetermined positions via the notched thin plate portions 19a and 19b below the positioning step portions 17a and 17b. It becomes possible. Further, by attaching one of the side portions of the L-shaped steel material 15a to the lower surfaces of the positioned step plates 12a, 12b, and 12c and attaching the overhang fitting 15 to the inner side plates 14a and 14b, the step plates 12a, It becomes possible to support and fix the inner end portions of 12b and 12c easily and firmly. Further, since the strip-like thick plate portions 18a and 18b of the inner side plates 14a and 14b that can be processed and manufactured in advance before being attached to the support pillar 11 can be used as the baseboard 20 as they are, the step plates 12a and 12b are used. , 12c and after the installation of the kick plates 16a, 16b, 16c, it is possible to easily attach the skirting board 20 as compared with the case where the skirting board is provided at the joint with the narrow support pillar 11 at the construction site. Become.

  In addition, according to the present embodiment, the positioning step portions 17a and 17b of the step plate portion include the umbilical portion 21 protruding forward from the positioning step portions 17a and 17b of the kick plate portion. 21 is inserted into the end portions of the inner end portions of the step plates 12a, 12b, and 12c to be positioned and locked, and in combination with the overhang fitting 15, the step plates 12a, 12b, and 12c are more strongly and stable. It becomes possible to support and fix the inner end of the.

  Further, according to the present embodiment, the inner side plates 14a and 14b are arranged on the back side portion of the surrounding stairs which are covered with the step plates 12a, 12b and 12c and the kick plates 16a, 16b and 16c. The notch thin plate portions 19a and 19b are attached to the side surfaces 11a and 11b of the support column 11 by driving a screw or the like toward the support column 11, but the thickness of the notch thin plate portions 19a and 19b is reduced. Therefore, it is possible to easily and reliably fix a short screw or the like, and it is possible to reduce the cost and improve the workability. Furthermore, the step plates 12a, 12b, and 12c can be positioned and fixed by driving screws or the like toward the step plates 12a, 12b, and 12c from below one side of the L-shaped steel member 15a of the overhang fitting 15. Therefore, by driving the required number of screws, etc. without limitation, even if the holding force of the screws is relatively small, for example, in the case of step plates 12a, 12b, 12c made of plywood, etc., these can be securely fixed. Is possible.

  FIG. 3 shows the step board support structure 10 in the surrounding staircase of the present embodiment as viewed from the side of the upper floor side adjacent side surface 11c adjacent to the upper floor side of the one side surface 11a of the support pillar 11, A third corrugated plate support member 13c composed of a third inner side plate 14c and an overhang fitting 15 is attached to the upper floor side adjacent side surface 11c. The inner end portion of the step plate 12a is supported and fixed to the support column 11 via the first step plate support member 13a and the third step plate support member 13c, and is disposed on the step plate 12a. The inner end of 12d is supported and fixed to the support column 11 via a third step plate support member 13c.

  As described above, the step plate support structure in the surrounding staircase of the present invention has the inner side plates 14a. Step plate support members 13a, 13b, and 13c including 14b and 14c and the overhang fitting 15 can be appropriately attached to efficiently support and fix the step plates 12a, 12b, 12c, and 12d. It is possible to easily cope with not only the 90-degree staircase but also a staircase with an intermediate turning angle.

  The present invention is not limited to the above-described embodiment, and various modifications can be made. For example, the number of steps of the positioning step provided on the inner side plate can be appropriately designed according to the shape of the staircase or the step plate, and the overhang fitting is made of an L-shaped steel material and a reinforcing diagonal material. In addition to the above, for example, angle steel or groove steel can be cut into a desired length and used.

  Furthermore, since the inner side plate and the outer side plate can be processed and manufactured in advance at a factory or the like with precision, for example, as shown in FIG. 4, the strip-like thick plate portion 40 of the step plate portion has a small width of, for example, 5 mm or less. Can be easily formed. As a result, it is possible to keep the height of the baseboard provided along the upper surfaces of the stepped plates at the inner end portion and the outer end portion as low as 5 mm or less, which is not considered when converting the effective width of the stairs. Therefore, it is possible to efficiently form the stairs with a wide effective width of the stairs.

  Furthermore, in addition to the case where the inner side plate of the corrugated plate support member is directly attached along the side surface of the support column, a wall base material 51 is interposed between the side surface of the support column 50 as shown in FIG. In the state where the inner side plate 52 of the step plate support member is attached along the side surface of the support column 50 and the step plate support member is supported by the support column 50 via the wall base material 51, the present invention is also applied. It is possible to apply.

  6 (a) to 6 (g) show one preferred embodiment of the inner side plate used in the present invention. 6 (a) to 6 (g), in the step board support structure in the surrounding staircase of the present invention, the function is effectively exhibited, and the unique shape is caused by the novel shape. Yes.

It is a schematic perspective view explaining the structure of the corrugated board support structure which concerns on preferable one Embodiment of this invention. (A) is a front view which illustrates the inner side board used in the corrugated board support structure which concerns on preferable one Embodiment of this invention, (b) is sectional drawing along AA of (a). FIG. 2 is a schematic perspective view of a corrugated board support structure according to a preferred embodiment of the present invention, as viewed from a direction different from FIG. 1. It is a front view which illustrates other forms of an inner circumference side board and an outer circumference side board. It is a schematic sectional drawing explaining the other attachment state to the support pillar of an inner side side board. (A) is a front view, (b) is a left side view, (c) is a right side view, (d) is a rear view, (e) is a plan view, and (f) shows a preferred embodiment of the inner side plate. Is a bottom view, and (g) is a sectional view taken along line BB.

Explanation of symbols

10 Step plate support structure 11, 50 Support column 11a One side surface 11b of support column Adjacent side surfaces 12a, 12b, 12c, 12d of support column Step plates 13a, 13b, 13c Step plate support members 14a, 14b, 14c, 52 Inner side plates 15 Overhang brackets 16a, 16b, 16c Kicking plates 17a, 17b Positioning stepped portions 18a, 18b, 40 Strip-like thick plate portions 19a, 19b Notched thin plate portion 20 Skirting board 21 Umbilical portion 51 Wall base material

Claims (5)

It is a step support structure that is provided on a support column installed on the inner side of the surrounding staircase and supports the inner end of the step board,
Along with the side surface of the support column, a step plate support member composed of an inner side plate and an overhang fitting is attached, and the inner end portion of the step plate is positioned and supported by the step plate support member.
The inner side plate includes an upper strip-shaped thick plate portion sandwiching a stepped positioning stepped portion for positioning the step plate and the kick plate, and a lower notched thin plate portion,
The overhang bracket is attached to the notched thin plate portion at a distance corresponding to the thickness of the step plate from the positioning step portion of the step plate portion to the lower portion thereof, and between the strip-shaped thick plate portion. Positioning and supporting the inner end so as to sandwich the inner end of the corrugated plate,
The band-shaped thick plate portion is a step plate support structure in a staircase that is arranged in a band plate shape along a joint portion of the step plate and the kick plate to the support column to form a baseboard.   The positioning step portion of the step plate portion includes a umbilical portion protruding forward from the positioning step portion of the kick plate portion, and the distal end portion of the inner end portion of the step plate is positioned and locked to the umbilical portion. The step board support structure in the surrounding staircase of claim | item 1.   The strip-shaped thick plate portion disposed along the upper surface of the step board is formed with a width of 5 mm or less, whereby a baseboard having a height of 5 mm or less is provided along the upper surface of the step board. The step board support structure in the surrounding staircase of 1 or 2.   The inward side plate of the stepped plate support member is attached along the side surface of the support column with a wall base material interposed between the side surface of the support column and the side surface of the support column. Corrugated plate support structure in the surrounding stairs. In the step board support structure in the surrounding stairs in any one of Claims 1-4, it is an inner side board used by attaching to the support pillar installed inside the surrounding part of the surrounding stairs,
An upper strip-shaped thick plate portion sandwiching a stepped positioning stepped portion for positioning the step plate and the kick plate, and a lower cut-out thin plate portion,
The inner end portions of the step plate and the kick plate are positioned along the positioning step portion, and the strip-shaped thick plate portion is formed along the joint portion of the step plate and the kick plate to the support column. An inner side plate that is arranged like a strip and forms a skirting board.

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