JPH0754452A - Steel frame stair - Google Patents

Abstract

PURPOSE:To simplify construction of a wood finishing member at a steel frame stage and to improve decorative properties. CONSTITUTION:A plurality of plates 9 are caused to span in a stair-form state between a pair of inclined steel frame members and a wood tread 8 is arranged at each plate 9. At a steel frame stage wherein a wood riser plate 13 and a wood side plate 15 are combined together to effect wood finishing, the side plates are formed approximately in a triangular shape and erected at end parts on both sides of the tread 8 and the riser 13 and fixed to the plate 9. The tread 8 and the riser 13 are fixed through the side plate.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a steel frame staircase, and more particularly to a steel frame staircase in which the mounting and wood-based finishing methods are simplified and the workability and design are excellent.

[0002]

2. Description of the Related Art Generally, as a steel frame staircase in a building, a wood-based finishing plate is attached to a pair of staircase steel members. For example, a plurality of wood-based footboards are bridged in a stepwise manner between a pair of staircase steel members, and side plates (sasaraza) and risers are attached to the footboards. In the conventional type of steel frame staircase, the side plate is formed in a predetermined step shape or a folding table, and fitting grooves are formed at predetermined positions of the side plate and the riser plate. In addition, such a side plate may be largely inserted by hanging it over a beam or the like on the upper and lower floors.

[0003]

However, in the conventional wood-based finishing of steel frame stairs, it is necessary to accurately attach the footboard and the riser to the side plates and the like. It became worse and the construction process could not be simplified easily. Moreover, it was not easy to carry in and handle the side plate, and there was room for improvement. Therefore, an object of the present invention is to provide a steel-framed staircase that simplifies the construction of a wood-based finishing material on the steel-framed staircase and is excellent in design.

[0004]

According to the present invention, a plurality of plates are installed stepwise between a pair of inclined steel members for stairs, a wooden footboard is provided on each plate, and a wooden kicker is provided. In a steel frame staircase in which a wooden board and a wooden side board are combined to perform a wooden finish, the side boards are substantially right-angled triangular and are erected on both ends of the step board and riser board for each block of each step and fixed to the plate. The above object is achieved by providing a steel-framed staircase with a wood-based finish, characterized in that the footboard and riser board are fixed via the side plates.

Further, it is desirable that the side plate is cut from a strip-shaped plate material having a predetermined width, and that the cut side of the cut side plate of a substantially right triangle is shared with the cut side of the adjacent side plate.

Further, the plate is erected so that the side edge on the lower stage side along the bridge direction is bent downward to stand upright, and the side edge on the upper stage side is bent upwardly to stand upright, and the tread plate is attached to the plate. Arranged along the standing edge on the upper side, the riser plate is erected between the upper stepping plate and the lower stepping plate along the standing edge of the plate, and the substantially triangular side plate. The bottom edge and the vertical edge are thinly formed, the notch of the bottom edge is engaged with the upper surface of the end of the tread, and the notch of the vertical edge is engaged with the end surface of the riser. And the footboard and the riser are fixed together, a notch is formed substantially vertically from the bottom edge of the side plate, and the standing edge on the upper side of the plate is inserted into the notch to fix the side plate. can do.

[0007]

In the steel frame staircase according to the present invention, the footboard which is a wood-based member is sequentially attached from the lower stage, and the footboard attached in the lower stage is fixed by attaching side plates of substantially right triangular shape formed for each block. That is, the stepping plate is prevented from being removed by engaging the end portion thereof with the notch of the side plate during assembly. In addition, the respective joints of the step plate, the riser plate and the side plate can be combined easily and accurately. Furthermore,
The side plate is fixed to the plate through the notch, and the withdrawal is prevented due to the engagement relationship with the upper step plate. The side plate has a shape and form that can be easily constructed as a block material as shown in FIG. 5, which will be described later. Moreover, a gap or the like is unlikely to occur at each joint portion of the side plate, the step plate and the riser plate, which is excellent in design. There is.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A steel staircase according to the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of a steel frame structure of a building provided with a steel frame staircase according to the present embodiment. FIG. 2 is an exploded perspective view of the steel frame staircase according to the present embodiment. FIG. 3 corresponds to FIG.
It is a sectional view taken along the line II-II. FIG. 4 shows II of FIG.
It is a sectional view taken along the line I-III. FIG. 5 is a plan view of a side plate used in the steel staircase according to this embodiment.

As shown in FIGS. 1 to 5, in a steel frame staircase 1 according to this embodiment, a plurality of plates 9, 9, ... Are erected stepwise between a pair of inclined steel frame members 2 for staircases. The wooden stairs 8 and 8 ... Are provided on each plate 9 and the wooden stairs 13 and the wooden side plates 15 are combined to perform a wooden staircase. Then, the side plate 15 has a substantially right-angled triangular shape and stands on both ends of the step plate 8 and the riser plate 13 for each block of each step, and is fixed to the plate 9, and the step plate 8 and the riser plate 13 are fixed to the side plate 15. It is fixed via the side plate 15.

The present embodiment will be further described. As shown in FIGS. 1 to 5, a pair of staircase steel members 2, 2 of a steel staircase 1 are predetermined H steel beams 3, 3 ...
It is fixed by welding. The staircase steel member 2 has a predetermined width and is arranged so as to be inclined, and a slit 4 and an insertion hole 5 are formed at predetermined positions on the surface of the steel member 2. A seat washer 6 is attached to the slit 4 and the insertion hole 5, and the seat washer 6 is formed by bending a T-shaped metal plate into a substantially chair shape. An attachment hole 7 is formed in the back support portion 6A of the chair-shaped seat washer 6. The back support portion 6A is inserted into the slit 4, the entire seat washer 6 is raised, and a fastening member such as a bolt is inserted into the insertion hole 5 and the attachment hole 7. As a result, the seat washer 6 is attached to the steel frame member 2 at a predetermined position.

A bridge plate 9 for holding the tread plate 8 is attached to the seat washer 6. The bridging plate 9 is formed in a rectangular shape, and each end portion 9A of the bridging plate 9 is bent downward and brought into contact with the side wall surface of the steel frame member 2. Further, the lower end standing edge 9B along the longitudinal direction of the bridge plate 9 is bent downward, and the upper standing edge 9C is bent upward. A mounting hole 10 is formed in the end surface 9A of the bridge plate 9, and a fastening member such as a bolt 25 is inserted into the mounting hole 10 together with the insertion hole 5 and the mounting hole 7 described above. Thereby, the bridge plate 9 is attached to the steel member 2 integrally with the seat washer 6.

As shown in FIGS. 3 and 4, the bridge plate 9
A tread plate 8 is attached on the surface, and the tread plate 8 is made of wood and is made of an aggregate material. Further, the length of the tread plate 8 is formed shorter than that of the bridge plate 9, and the groove portion 11 is formed by the gap between the steel frame member 2 and the end surface of the tread plate 8. The width of the tread plate 8 is formed wider than the width of the bridge plate 9, and a part 8A of the tread plate 8 is formed so as to protrude from the standing end edge 9B on the lower side of the bridge plate 9. Further, a cutout portion 12 is formed at the upper end of the step plate 8 on the upper side, and the riser plate 1 is formed in the cutout portion 12.
The lower end of 3 is fitted. A groove portion 14 is formed on the lower surface of the protruding portion 8A of the step plate 8, and the upper end portion of the riser plate 13 is fitted into the groove portion 14. The riser plate 13 is abutted against the standing edge 9C of the lower bridge plate 9 and the standing edge 9B of the upper bridge plate 9 in an upright state.

As shown in FIG. 5, the side plate 15 is removed from one strip-shaped plywood 16 and cut into a substantially right triangle. That is, only the cutting line A in FIG. 5 meanders with respect to the imaginary line A ′, and has a shape different from the shape of a right triangle. Therefore, the cutting sides 15A and 15B of the side plate 15 are shared with the cutting sides 15A and 15B of the other adjacent side plates 15, respectively. That is, in the method of removing the side plate 15, it is possible to reduce the amount of cutting as much as possible and perform the plate removal without waste. The peripheral edge of the side plate 15 is thinly cut out, and when combined, the bottom edge 15A of the side plate 15 fits into the groove portion 11 in the gap between the steel frame member 2 and the step plate 8 as shown in FIG. Then, the cutout portion 17 abuts and engages with a corner portion of the upper surface of the step plate 8. Also, the vertical edge 15B of the side plate 15 when combined
The notch portion 18 is brought into contact with and engaged with the end edge surface of the riser plate 13. Further, the notch 1 formed at the upper portion of the vertical edge 15B.
The end surface of the protruding portion of the upper step plate 8 is brought into contact with and engaged with the upper portion 9. Further, a cut 20 from the bottom edge 15A is formed at the lower end of the vertical edge 15B of the side plate 15, and the cut 20
At the time of combination, a part of the standing edge 9C of the bridge plate 9 is inserted into.

The cutout portion 21 of the inclined side edge 15C of the side plate 15 is fitted to the tree 23 when the steel stairs 1 are combined, and the tree 23 sufficiently fixes the side plate 15 for each block. .

In order to construct the steel staircase 1 according to this embodiment, first, the back rest portion 6A of the seat washer 6 is inserted into the slit 4 of the steel member 2 and the seat washer 6 is raised. The bridge plate 9 is arranged on the seat washer 6, and bolts are inserted into the insertion holes 5 of the steel frame member, the mounting holes 7 of the seat washer 6 and the mounting hole 10 of the bridge plate 9 and fastened with nuts. Therefore, the insertion hole 5 and the slit 4 are pre-positioned in the steel frame member 2, and the seating washer 6 is attached at the time of assembly to form the shelf of the bridge plate 9, so that the bridge plate 9 can be easily positioned by placing it. Therefore, the mounting of the steel frame member can be simplified.

Next, the foot plate 8 and the bridge plate 9
Then, the riser plate 13 is attached. In this case, the lower end portion of the riser plate 13 is fitted into the cutout portion 12 of the tread plate 8,
The riser plate 13 is brought into contact with the standing edges 9B and 9C of the bridge plate 9. Next, a part of the standing edge 9C of the bridge plate 9 is inserted into the notch 20 of the side plate 15, and the bottom edge 15A is inserted into the groove 11 of the tread plate 8 and the steel member 2. Thereby, the footboard 8 can be pressed by the notch 17 of the bottom edge 15A. Further, the riser plate 1 is provided between the cutout portion 18 of the vertical edge 15B and the standing end edges 9B and 9C of the bridge plate 9.
3 can be fixed.

Furthermore, when the upper floor tread 8 is attached to the bridge plate 9, the protruding end 8A of the tread 8 is provided with the side plate 15.
It fits into the notch portion 19 of
Engages with the upper end of the riser plate 13. Therefore, the footboard 8
Is immovable in the horizontal direction. Therefore, the wood-based riser plate 13 and the side plate 15 can be easily mounted by sequentially mounting the footboard 8 which is a wood-based member from the lower stage. Further, in this case, the side plate 15 can be easily processed, and the side plate 15 is excellent in design without forming a gap or the like at each joint of the step plate 8 and the riser plate 13 for each block. . In addition, by attaching the tree 23 to each side plate 15, it is possible to make it more integrated.

[0018]

The steel staircase according to the present invention simplifies the construction of the wood-based finishing material on the steel staircase and is excellent in design.

[Brief description of drawings]

FIG. 1 is a perspective view of a steel frame structure of a building provided with a steel frame staircase according to the present embodiment.

FIG. 2 is an exploded perspective view of a steel frame staircase according to the present embodiment.

3 is a sectional view taken along line II-II of FIG.

FIG. 4 is a sectional view taken along the line III-III of FIG.

FIG. 5 is a plan view of a side plate used for the steel frame staircase according to the present embodiment.

[Explanation of symbols]

 1 Steel staircase 2 Steel frame member 2 H Steel beam 4 Slit 5 Insertion hole 6 Seat washer 6A Back rest part 8 Tread plate 9 Bridge plate 9B Standing edge on the lower side 9C Standing edge on the upper side 10 Mounting hole 11 Groove part 13 riser plate 15 side plate 15A bottom edge of side plate 15B vertical side edge of side plate 17, 18 notch portion 19 notch portion 20 notch

Claims (6)

[Claims] 1. A plurality of plates are installed stepwise between a pair of inclined steel members for stairs, a wooden footboard is provided on each plate, and a wooden riser and a wooden sideboard are combined. In a steel-frame staircase where wood-based finishing is performed, the side plates are formed into a substantially right-angled triangular shape, and are erected on both ends of the stepping plate and riser plate for each block of each stage and fixed to the plate, and A steel-framed staircase with a wood-based finish, characterized in that a siding board is fixed via the side board. 2. The lower side edge of the plate along the bridge direction is bent downward to stand upright, and the upper side edge of the plate is bent upward to stand upright, and the tread plate of the plate is raised. The riser is arranged along the standing edge on the upper side, and the riser plate is erected so as to abut on the standing edge of the plate between the upper stepping plate and the lower stepping plate. The bottom edge and the vertical edge of the side plate are thinly formed, the notch of the bottom edge is engaged with the upper surface of the end of the tread, and the notch of the vertical edge is the end surface of the riser. The side plate by fixing the step plate and the riser plate to each other, forming a cut substantially vertically from the bottom edge of the side plate, and inserting the standing end edge of the upper side of the plate into the cut. The steel frame stairs according to claim 1, wherein the steel stairs are fixed. 3. The steel frame according to claim 2, wherein the step plate is formed so as to project from a side edge of the plate, and the projecting portion is provided with an engaging portion that engages with upper ends of the side plate and the riser plate. Stairs. 4. The steel frame stairs according to claim 2, wherein a through tree is provided which engages with an inclined side edge of the side plate, and the through plate integrates the side plates of each step. 5. The method for manufacturing a side plate according to any one of claims 1 to 4, wherein the side plate is plate-cut from a strip-shaped plate material having a predetermined width, and the plate-cut edges are adjacent to each other. A method for manufacturing a stair side plate, which is formed as an edge of a side plate. 6. A steel frame staircase in which a plate is installed stepwise between a pair of inclined staircase steel members, wherein a slit hole and a mounting hole are formed at predetermined positions of the staircase steel member, and a substantially T-shape is formed. The seat washer formed by bending the member is inserted into the slit through the T-shaped rod portion, the plate is seated on the seat washer and held, and the mounting hole is provided at a predetermined position of the stair frame member. A steel frame staircase characterized in that the plate and the seat washer are attached via a fastening member that is inserted.