JP6417147B2 - Stairs and their assembly structure - Google Patents

Description

  The present invention relates to a staircase suitably used for, for example, a wooden indoor staircase in a general house or the like and an assembly structure thereof.

  In recent years, wooden indoor staircases constructed in ordinary houses such as detached houses have been assembled in advance at the factory, etc. before being brought into the assembly site, and the assembled staircase is brought into the site. It is becoming mainstream to install it.

  As such a wooden indoor staircase, a doll platform staircase, a makeup staircase, and the like are well known. For example, as shown in Patent Document 1, a conventional doll platform staircase extends in a diagonally upward direction and is paired in parallel with each other. Side plates (both side plates) are provided, and upper side edges of both side plates are formed in a stepped shape so that horizontal and vertical planes are alternately arranged. A step plate is fixed to the horizontal plane, and a squeeze plate is fixed to the vertical plane to form a stepped staircase.

  When assembling the hinadan staircase at a construction site, after fixing the hinadan staircase to the house structure, a floor material (construction floor) is formed by constructing a floor material on the lower floor. For this reason, when fixing the stairs to the house structure in order to improve the fit between the lower ends of both sides of the wooden indoor staircase and the dressing floor, the gap between the lower ends of both sides of the staircase and the floor floor The staircase is fixed in a state of floating from the floor base so that a gap corresponding to the thickness dimension of the flooring is formed, and after the stair construction, the flooring is laid on the floor base while being inserted into the above gap By doing so, the flooring material is beautifully stored at the lower end of the stairs to ensure a good aesthetic appearance.

Japanese Patent Laid-Open No. 2000-17806

  However, indoor staircases such as the above-mentioned staircase staircases are constructed in a state where they are slightly floated from the floor base in order to form a gap for inserting the floor material between the floor base and the floor. That is, since the indoor staircase is constructed in a non-contact state with respect to the floor base, positioning with respect to the floor base is difficult, and the stair assembly work becomes difficult. Furthermore, since the conventional indoor staircase is constructed in a non-contact state with respect to the floor base, it is difficult to adjust the floating dimension (lifting amount) from the floor base. For this reason, for example, the gap between the floor and the floor becomes small, the floor material cannot be inserted into the gap, and the flooring work becomes difficult, or the gap between the floor and the ground becomes large, There arises a problem that the aesthetics deteriorate.

  On the other hand, a construction method for assembling an indoor staircase with its lower end in contact with a floor base is also well known. In this case, when the flooring is constructed around the stairs after the stairs have been constructed, the portion of the flooring corresponding to the lower end of the stairs is cut out so as to conform to the shape of the lower end of the stairs, and the notched portion is formed at the lower end of the stairs. While adapting, the flooring is laid on the floor. In this construction method, since the staircase is in contact with the floor base, it is easy to ensure the positional accuracy of the staircase, and the staircase construction can be easily performed.

  However, in this construction method, when the flooring is constructed after the staircase construction, it is necessary to accurately form a notch that matches the lower end of the staircase in the flooring. Therefore, technically high ability and skill level are necessary, and the problem that the construction work of the flooring material cannot be performed easily occurs.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a staircase that can easily perform staircase construction work and flooring work work, and that can obtain a good beauty, and an assembly structure thereof. And

  In order to solve the above problems, the present invention comprises the following means.

[1] A staircase in which a staircase that extends obliquely upward and is supported by both side plates arranged parallel to each other is assembled in a state in which the lower edge of the front end of the side plate faces the floor base The assembly structure of
A concave step portion is formed on the front portion of the lower edge of the front end portion of the side plate so as to be recessed upward, and a raised portion that protrudes downward on the rear side of the concave step portion and contacts the floor base is formed, Between the inner peripheral surface of the concave step portion and the floor base, a floor material insertion gap that opens forward is formed,
An assembly structure of a staircase, wherein a floor material to be constructed on the floor base is inserted and arranged in the floor material insertion gap.

  [2] In the above item 1, the side plate is formed of a side plate for a step of the stairs where the upper edge is formed in a staircase shape, and the horizontal step plate mounting portion and the vertical folding plate mounting portion are alternately arranged. Assembling structure of the staircase described.

[3] While the rear side both side edges of the bottom dent plate are arranged along the front edge of the front end of the both side boards,
A mounting plate lower fixing bar is fixed to the bottom bottom edge of the back surface of the mounting plate,
The assembling structure of the staircase according to the preceding item 1 or 2, wherein notches for accommodating both ends of the scooping plate lower fixing bar are formed below the front edge of the front end of the both side plates.

  [4] The staircase assembly structure according to item 3 above, wherein a corner portion between a rear surface and a lower surface of the bottom plate fixing rail is chamfered to form a lower tapered surface.

  [5] The staircase assembly structure according to the above item 3 or 4, wherein a corner portion between the rear surface and the upper surface of the bottom plate fixing bar is chamfered to form an upper tapered surface.

[6] A staircase in which a step plate is supported by both side plates that extend obliquely upward and are arranged in parallel to each other,
A concave step portion is formed in the front portion of the lower edge of the front end portion of the side plate so as to be recessed upward, and a raised portion is formed on the rear side of the concave step portion so as to protrude downward and contact with the floor base. ,
In the state where the raised portion is grounded to the floor substrate, the floor material difference that can be inserted between the inner peripheral surface of the concave stepped portion and the floor substrate is opened forward and the floor material constructed on the floor substrate can be inserted. A staircase characterized in that a gap is formed.

  According to the staircase assembly structure of the invention [1], a concave step portion is formed in the front portion of the lower edge of the front end portion of the side plate, and a raised portion that is grounded to the floor base is formed on the rear side thereof. Since the floor material insertion gap is formed between the peripheral surface and the floor base, and the floor material is inserted into the gap, the floor material can be moderated naturally around the lower end of the stairs. And good aesthetics can be secured. In addition, since the raised portion of the side plate is grounded to the floor base, it is possible to easily and accurately align the staircase with respect to the floor base and adjust the raised amount, and the stairs can be easily constructed with high positional accuracy. . Furthermore, it is not necessary to apply special processing to the flooring material, and it can be easily constructed simply by laying the flooring material as it is.

  According to the staircase assembling structure of the invention [2], it can be applied to a staircase staircase.

  According to the staircase assembling structure of the invention [3], a notch is formed at the lower end of the front edge of the front end of the side plate, and the notch is fixed to the lower part of the rear side of the bottom plate. Since both end portions of the bottom plate fixing bar are accommodated, the bottom plate fixing plate can be securely attached while preventing the bottom plate fixing bar from interfering with the side plate.

  According to the assembling structure of the staircase of the invention [4], the lower corner portion of the rear surface of the fixing plate lower fixing bar is chamfered to form a lower tapered surface, so that the lowermost setting plate is fitted. The lower tapered surface functions as a guide surface with respect to the floor surface. Accordingly, it is possible to prevent problems such as the fixed rail of the bottom-stage squeeze plate sticking to the floor surface, and the bottom-stage squeeze board can be easily and reliably attached.

  According to the assembling structure of the staircase of the invention [5], the upper tapered surface is formed by chamfering the upper corner portion on the rear surface of the bottom fixing bar of the scooping plate, so that the upper tapered surface is used for fixing the fixing tool. Can be used as a fixed surface. Therefore, the fixing tool can be driven into the fixing bar at an appropriate inclination angle and fixed to the floor base, and the scraping plate can be fixed to the floor base in a stable state.

  According to the staircase of the invention [6], the stair construction work and the floor material construction work can be easily performed and a good aesthetic appearance can be obtained in the same manner as described above.

FIG. 1 is a side cross-sectional view for explaining a floor finishing operation in an assembly structure of a stepped stairs which is an embodiment of the present invention. FIG. 2 is a side cross-sectional view for explaining the construction work of the bottom step board in the assembly structure of the stepped stairs of the embodiment. FIG. 3 is a perspective view showing a stepped staircase applied to the embodiment in a partially disassembled state. FIG. 4 is a side view showing the side plate of the platform step of the embodiment. FIG. 5 is an enlarged cross-sectional view of the vicinity of the floor material insertion gap in the assembly structure of the stairs of the embodiment.

  1 and FIG. 2 are side sectional views showing the assembly structure of a doll platform staircase according to an embodiment of the present invention, FIG. 3 is a perspective view showing a doll platform stairs H applied to the embodiment, and FIG. It is a side view which shows the side plate 1 for use. In the present embodiment, in order to facilitate understanding of the invention, the direction (left side in FIGS. 1 and 2) facing when going down the stairs is defined as the “front side” and the direction facing when going up the stairs ( The right side of FIGS. 1 and 2 will be described as “rear side”.

  As shown in FIG. 1 to FIG. 4, the assembly structure of the doll platform staircase of this embodiment is a structure in which a doll platform staircase H and a decorative floor 6 are provided on the floor substrate 5. After assembling the doll bed staircase H, a decorative floor (floor) 6 is formed on the floor foundation 5.

  The hinadan staircase H includes a pair of left and right side plates (both side plates) 1, and a plurality of step plates 2 and a plurality of raised plates 3 attached to the both side plates 1.

  Both side plates 1 are formed in the same shape. That is, the both side plates 1 are arranged so as to be parallel to each other with an interval in the left-right direction (step width direction) and obliquely upward toward the rear side.

  The side plate 1 is formed such that horizontal cuts and vertical cuts are alternately arranged by cutting the upper edge from the front end to the rear end in a stepped shape. Among these, the horizontal cut is configured as a corrugated board mounting top 11, and the vertical cut is configured as an indented board mounting top 12. Further, the front edge (front surface) of the front end portion of the side plate 1 is configured as a cut-out plate mounting top 12 which is a vertical cut end.

  In the present embodiment, the corrugated plate attachment throat 11 is configured as a corrugated plate attachment portion, and the dent plate attachment lip 12 is configured as a dent plate attachment portion.

  As shown in FIG. 5, a notch recessed step portion 13 is formed at the lower edge of the front end portion of the side plate 1 so as to be recessed upward by notching the front half thereof. Further, a raised portion (spacer portion) 14 is formed on the rear half of the lower edge of the front end portion of the side plate 1 so as to protrude downward. The lower surface of the raised portion 14 is formed in a horizontal plane, and is configured such that the lower surface can be grounded (contacted) on the floor base 5.

  In the present embodiment, the notched concave step portion 13 constitutes a concave step portion, and details of the configuration will be described later.

  A cutout portion 15 is formed at the lower end portion of the front edge of the front end portion of the side plate 1, that is, at the lower end portion of the bottom plate mounting plate 12.

  Moreover, as shown in FIGS. 1-3, the corrugated board receiving frame 21 is each fixed to the position corresponding to the corrugated board top 11 in the inner surface of the both-sides board 1. As shown in FIG.

  In this embodiment, the side plate 1 is made of wood having a thickness of 20 mm to 30 mm. For example, a wood material such as a plywood, a single plate laminated material, a laminated material, or a medium fiber board is used alone or 2. A combination of two or more species can be suitably used.

  Furthermore, the length of the tread surface in the side plate 1 (length in the front-rear direction of the corrugated board attachment throat 11) is adjusted to about 180 mm to 270 mm, and the kick-up dimension (length in the vertical direction of the mounting board attachment clerk 12) is It is adjusted to 170 mm to 200 mm.

  As shown in FIG. 4, in this embodiment, the side plate 1 is formed of four step plate attachment tops 11, that is, a four-step side plate to which four step plates 2 are attached. As will be described later, in the present invention, the number of steps 2 attached to the side plate 1 is not limited.

  As shown in FIGS. 1 to 3, the step plate 2 extends continuously in the step plate length direction (step width direction) at the front end of the back surface (lower surface) and opens to the back side (downward). A dent plate mounting groove 22 is formed.

  In the present embodiment, as the corrugated board 2, for example, a plywood, a single board laminated material, a laminated material, a medium fiber board, a hard fiber board, a particle board, or other wood materials such as a single material or a combination of two or more kinds thereof are preferably used. Can be used.

  Further, behind the dent plate attachment groove 22 on the lower surface of the step plate 2, a dent plate upper fixing bar 23 is attached along the length direction of the step plate. The rake plate upper fixing bar 23 has a length dimension that can be disposed between the side plates 1, and when the step plate 2 is fixed to the side plate 1, The both ends of 23 do not interfere with both side plates 1.

  The corrugated board 2 configured as described above is arranged in the corresponding corrugated board tops 11 so as to be bridged between the both side boards 1, and in this state, the required parts of the corrugated boards 2 are It is fixed to the side plate 1 by screw nails (fixing tools) such as nails, screw nails, wood screws and screws. Note that an adhesive may be used in combination when fixing the step plate 2 to the side plate 1.

  The board 3 is made of, for example, wood materials such as plywood, medium fiber board, hard fiber board, or a combination of two or more.

  Of the rake plate 3, the rake plate 3a arranged at the lowermost stage is provided with a rake plate lower fixing bar 32 along the lower end edge on the back surface side (rear surface side). The length of the fixing plate lower fixing bar 32 is the same as the length of the holding plate 3 in the length direction. It is arranged so as to be flush with each other.

  Further, the bottom plate fixing bar 32 is formed in a substantially square cross section, and the lower tapered surface 33 is formed by chamfering the corner portion between the rear surface and the lower surface of the fixing bar 32. Further, the upper tapered surface 34 is formed by chamfering the corner portion between the rear surface and the upper surface of the bottom plate fixing bar 32.

  The corrugated board 2 which is arrange | positioned so that the both-sides edge part in the scoring board 3 comprised as mentioned above may correspond to each scoring board attachment mouth 12 which the both-sides board 1 respond | corresponds, and also an upper end part adjoins the upper side. In addition to being inserted into the recess plate mounting groove 22, the lower end portion is disposed along the rear end surface of the step plate 2 adjacent to the lower side, and in this state, the required portion of each recess plate 3 is screw nails ( It is fixed to the side plate 1 and the corrugated plate 2 by the fixing tool). Note that an adhesive may be used together when the scooping plate 3 is fixed to the side plate 1 or the step plate 2.

  In this embodiment, the assembly procedure of the stepped staircase H is not particularly limited, and may be assembled by any procedure. For example, the side plate 1 and the step plate 2 and the indentation plate 3 are arranged in order from the upper side. It can be assembled in a sequence of mounting alternately.

  The doll platform staircase H having the above configuration is assembled in advance at a factory or the like, and the assembled doll platform staircase H is carried into the construction site. It is customary to construct at the construction site.

  Hinadan staircase H carried into the construction site is assembled as follows. In the construction site, it is assumed that the floor foundation 5 has already been constructed in addition to the house structure to which the doll bed staircase H is fixed.

  First, the raised portions 14 on the lower surfaces of the lower ends of the side plates 1 in the hina step stairs H are grounded to a predetermined position of the floor base 5, and the side plates 1 are fixed to the house structure to be supported on the house structure.

  Here, in the present embodiment, the doll platform staircase H is fixed to the house structure with the raised portion 14 in contact with the floor substrate 5, so that the alignment of the doll platform staircase H with respect to the floor substrate 5 is accurate. The stepped staircase H can be assembled with high positional accuracy.

  After the hinadan staircase H is constructed, a large number of flooring materials 61 are laid and constructed on the floor foundation 5 to finish the floor, thereby forming a decorative floor (floor) 6.

  Here, in the present embodiment, the raised portion 14 provided at the lower end of the side plate of the staircase staircase H protrudes downward and is grounded to the floor base 5, so that the notch recessed step portion 13 formed on the front side of the raised portion 14. A floor material insertion gap 10 that opens forward is formed between the inner peripheral surface of the floor and the floor base 5. For this reason, when constructing the floor material 61, the floor material 61 is fixed to the floor base 5 in a state where a part of the floor material 61 is inserted into the floor material insertion gap 10 in the vicinity of the lower end portion of the side plate 1 in the stepped staircase H. . As a result, the condition of the floor material 61 is improved around the side plate 1 of the hina step stairs H, and a good aesthetic appearance can be secured.

  Furthermore, in this embodiment, since the raising part 14 is made to contact the floor base 5, the floor material insertion gap | interval 10 can be formed in the part of the notch recessed step part 13 easily and accurately by the contact. . That is, when the side plate lower end is not brought into contact with the floor base as in the prior art, it is difficult to adjust the raising amount of the stairs. On the other hand, in this embodiment, the raising amount of the staircase H can be ensured accurately only by bringing the raising portion 14 into contact with the floor foundation 5, and the raising amount can be set easily and accurately.

  Here, in this embodiment, as shown in FIG. 5, the distance A1 of the floor material insertion gap 10, that is, the height A1 of the notch recessed step portion 13 is set to be less than the thickness of the decorative floor 6 (floor material 61). It is preferable to form 5 mm to 1 mm larger. For example, in the case of a decorative floor 6 having a thickness of 12 mm, the interval A1 of the floor material insertion gap 10 is preferably set to 12.5 mm to 13 mm. That is, when the interval A1 of the floor material insertion gap 10 is too small, it becomes difficult to smoothly insert the floor material 61 into the floor material insertion gap 10, which may reduce the workability. . On the other hand, when the distance A1 of the floor material insertion gap 10 is too large, an inadvertent gap is formed between the floor material 61 inserted into the floor material insertion gap 10 and the inner peripheral surface of the notch recessed step portion 13. This is not preferable because it may cause a decrease in aesthetics.

  Furthermore, in the present embodiment, the depth (front-rear length) A2 of the floor material insertion gap 10, that is, the cutout length A2 of the cutout recess 13 is preferably set to 50 mm to 100 mm. That is, when the depth A2 of the floor material insertion gap 10 is too long, the front-rear length of the raised portion 14 becomes relatively short, and it is difficult to obtain sufficient strength for the raised portion 14, which is not preferable. Conversely, when the depth A2 of the floor material insertion gap 10 is too short, the amount of insertion of the floor material 61 is reduced, and the floor material 61 cannot be accommodated well and is not preferable.

  After the floor material 61 is constructed, the bottom ledge plate 3a is attached to the lower end of the stairs H. That is, as indicated by the imaginary line in FIG. 2, the upper end of the bottom plate 3a is inserted into the mounting plate mounting groove 22 of the bottom plate 2, and the bottom plate is mounted while using the insertion portion as a fulcrum. By pushing the lower side of the dent plate 3a rearward, both side ends on the back side of the lowermost dent plate 3a are arranged so as to be along the lower halves of the two halver plate attachment plates 12 of the both side plates 1. . In this state, on the back side (rear side) of the stepped staircase H, a screw nail 35 as a fixing tool is driven into the upper tapered surface 34 of the lower fixed beam 32 in the lowermost stepped-in plate 3a, and the lower fixed beam 32 is driven. Is fixed to the decorative floor 6 and the floor base 5. As a result, the bottom plate 3a is fixed.

  Here, in the present embodiment, a notch portion is formed at the lower end portion of the bottom plate mounting plate 12 on the both side plates 1 of the stairs H so as to correspond to the lower fixing bar 32 of the bottom plate 3a. 15 is formed, the bottom plate fixing bracket 32 is accommodated in the cutout portion 15 of the side plates 1 when the bottom plate 3 a is fitted into the side plates 1. For this reason, the bottom plate fixing plate 32 does not interfere with the both side plates 1, and the bottom bottom plate 3a can be attached smoothly and reliably.

  Furthermore, in the present embodiment, since the cutout portions 15 are formed in the both side plates 1, it is possible to easily manufacture the squeeze plate 3 a with the fixing bar 32 used as the bottom squeeze plate 3 a. it can.

  That is, if the notches 15 are not formed in the both side plates 1, in order to prevent the both ends of the fixed beam attached to the lowermost rake plate from interfering with the both side plates 1, It requires an extra excision work of excising both ends.

  On the other hand, in the present embodiment, as described above, even if both ends of the fixing bar 32 are aligned with both ends of the scooping plate 3a, the fixing bar 32 is prevented from interfering with the both side plates 1. Therefore, the extra work of excising the both ends of the fixed bar 32 is not required, and accordingly, the rake plate 3a with the fixed bar 32 can be easily manufactured.

  Here, in the present embodiment, the height B1 and the depth B2 of the notch 15 are preferably formed to be larger by 1 mm to 3 mm than the height and the depth (width) of the scoring plate lower fixing bar 32. By forming the notch 15 in such a size, the notch plate 15 can be securely accommodated in the notch 15 without making the notch 15 larger than necessary. The height B1 and the depth B2 of the notch 15 are usually about 20 mm to 30 mm.

  In the present embodiment, the lower taper surface 33 is formed by chamfering the lower corner portion of the lower fixing bar 32 attached to the lower end portion of the rear surface of the lowermost indented plate 3a by chamfering the corner portion. The lowermost squeeze plate 3a can be easily and reliably attached.

  That is, when attaching the bottom-stage scoring plate 3a, the top end of the scoring plate 3a is inserted into the scoring plate mounting groove 22 of the step plate 2, and the bottom end of the scoring plate 3a is connected to the decorative floor 6. Although it rotates so that it may slide back along an upper surface (floor surface), if the taper surface 33 is not formed in the lower corner part of the lower fixed rail 32 in that case, a lower corner part will become a floor surface There is a risk that it will be difficult to smoothly push the bumper plate 3a to a predetermined position.

  Therefore, in the present embodiment, since the tapered surface 33 is formed at the lower corner portion of the bottom plate fixing bracket 32, the tapered surface 33 serves as a guide surface for the floor surface when attaching the bottom plate 3a. Function. In other words, the tapered surface 33 moves smoothly along the floor surface when the mounting plate 3a is attached, so that the mounting plate 3a can be pushed into the predetermined position without difficulty, and the mounting plate 3a is easily and reliably attached. be able to.

  In addition, in the present embodiment, the upper tapered surface 34 is formed by chamfering the corner portion at the upper corner portion of the lower fixing bar 32 attached to the lower end portion of the rear surface of the lowermost stepped plate 3a. By configuring the tapered surface 34 as a fixing tool fixing surface when the screw nail 35 is driven, the screw nail 35 can be driven easily and reliably.

  That is, when the screw nail 35 is driven into the holding plate lower fixed beam 32, the screw nail 35 is driven obliquely downward. However, if the upper fixed surface 34 is not formed on the lower fixed beam 32, the screw nail 35 is screwed. It is necessary to drive the nail 35 into the upper surface and the rear surface of the lower fixing bar 32 in an oblique direction with respect to the surface. In that case, the driving angle of the screw nail 35 cannot be stabilized, and the screw nail 35 deviates from a desired inclination angle, for example, is driven at a driving angle close to vertical or is driven close to horizontal. It will be driven in at the insertion angle, and it will be difficult to fix the lower fixing bar 32 to the floor base 6 in a stable state.

  Therefore, in the present embodiment, since the tapered surface 34 is formed at the upper corner portion of the lower fixed bar 32, the tapered surface 34 can be disposed so as to face the driving direction of the screw nail 35. For this reason, if the screw nail 35 is driven in a direction substantially orthogonal to the upper tapered surface 34, the screw nail 35 can be driven at a desired inclination angle. Can be fixed easily and reliably in a stable state.

  In this embodiment, a four-stage side plate 1 to which four step plates 2 are attached is used as the side plate 1, but in addition to the four-stage side plate 1, a one-stage type, two-stage type, It is preferable to use a total of four types of side plates. That is, by using a combination of these four types of side plates as appropriate, side plates for straight staircases of any length can be formed, and versatility can be significantly improved. For example, in a detached house or the like, 13 steps are required from the lower level to the upper level, and the 13 types of side plates can be formed by appropriately combining the above four types of side plates.

  But in this invention, you may make it form 5 or more steps | paragraphs of side plates, for example, 13 steps | paragraphs of side plates with a single plate (one thing).

  In the above-described embodiment, the case where the staircase is constituted by the stepped staircase H has been described as an example. However, the present invention is not limited thereto, and the present invention can also be applied to other staircases such as a makeup staircase.

  Moreover, in the said embodiment, while notching the front part of the front-end part lower edge in the side plate 2 and forming a concave step part, the raised part remains on the back side of the concave step part, but it is not restricted to it. However, in the present invention, it is possible to leave the recessed step portion without cutting out the side plate 2. For example, a raised member may be separately attached to the rear portion of the lower edge of the front end portion of the side plate, and the raised member may be configured as the raised portion, and the front side of the raised portion may be configured as the recessed step portion.

  Moreover, in the said embodiment, although the screw nail 35 is used as a fixing tool for fixing the fixing bar 32 of the lowermost step board 3a, it is not restricted to it, In this invention, other fixing tools, for example, Nails, wood screws, screws, or the like may be used.

  The present invention is not limited to a straight staircase, but can be applied to a staircase other than a straight staircase, such as a turning staircase, a bent staircase, or the like.

  The staircase of the present invention can be applied to, for example, a wooden staircase assembled indoors such as a general house.

1: Side plate 10: Floor material insertion recess 11: Corrugated plate throat (step plate mounting portion)
12: Diagonal plate mounting clerk (distance plate mounting part)
13: Notch concave step (concave step)
14: Raised portion 15: Notch portion 2: Step plate 3: Kake plate 3a: Bottom plate Kake plate 32: Kake plate lower fixing bar 33: Lower tapered surface 34: Upper tapered surface 35: Screw nail (adhering Ingredients)
5: Floor foundation 61: Floor material H: Hinatadan staircase

Claims (5)

Assembling the staircase, which is assembled in a state where the stepboard is supported by both side plates that extend obliquely upward and parallel to each other, with the lower edge of the front end of the side plate facing the floor base. Structure,
A concave step portion is formed on the front portion of the lower edge of the front end portion of the side plate so as to be recessed upward, and a raised portion that protrudes downward on the rear side of the concave step portion and contacts the floor base is formed, Between the inner peripheral surface of the concave step portion and the floor base, a floor material insertion gap that opens forward is formed,
The floor material to be constructed on the floor base is inserted and arranged in the floor material insertion gap ,
While the lower side both side edges of the bottom plate are arranged along the front edge front edge of the both side boards,
A mounting plate lower fixing bar is fixed to the bottom bottom edge of the back surface of the mounting plate,
A staircase assembling structure , wherein notches for accommodating both ends of the scooping plate lower fixing bar are formed below the front edge of the front end portion of the both side plates .   2. The side plate according to claim 1, wherein an upper edge portion is formed in a step shape, and the side plate is configured as a side plate for a staircase staircase in which horizontal step plate mounting portions and vertical dent plate mounting portions are alternately arranged. Stair assembly structure. The staircase assembly structure according to claim 1 or 2 , wherein a corner portion between the rear surface and the lower surface of the bottom plate lower fixing bar is chamfered to form a lower tapered surface. The staircase assembly structure according to any one of claims 1 to 3, wherein an upper tapered surface is formed by chamfering a corner portion between a rear surface and an upper surface of the bottom plate fixing bar. A staircase that extends obliquely upward and is supported on both side plates arranged parallel to each other,
In front of the front end lower edge of the side plate, with recessed step portion is formed so as to be recessed upward, the recessed step projecting downward on the rear side of, or One possible contact with the floor base raised portion is formed ,
In the state where the raised portion is grounded to the floor substrate, the floor material difference that can be inserted between the inner peripheral surface of the concave stepped portion and the floor substrate is opened forward and the floor material constructed on the floor substrate can be inserted. Configured to form a gap ,
While the lower side both side edges of the bottom plate are arranged along the front edge front edge of the both side boards,
A mounting plate lower fixing bar is fixed to the bottom bottom edge of the back surface of the mounting plate,
A staircase characterized in that a notch for accommodating both ends of the scooping plate lower fixing bar is formed in the lower part of the front edge of the front end portion of the both side plates .

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