JPH11148212A - Tread device for steel frame step - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate the fitting work of a wooden tread by fixing the wooden tread on a metallic tread fitted to a string through the adhesive, and fixing the wooden tread by screw members inserted from a lower side of the metallic tread. SOLUTION: A steel tread 20 is mounted on strings 16, 16. The adhesive 35 is applied to the steel tread 20 in its longitudinal direction. A wooden tread 36 is placed thereon, and fixed by screwing a bolt 37 inserted from a back side of a tread body 23 of the steel tread 20 into a back side of the wooden tread 36 and fixed thereto. A nut 38 provided with a screw on its outer circumference in advance is screwed in the wooden tread 36, and the bolt 37 is screwed into the nut 38, and fixed. A riser 42 is fitted to a groove 41 formed on a back side of a projecting part of the wooden tread 36 through a cushioning material 43. A plywood substrate is not fitted in advance like in a conventional practice, but the wooden tread is fixed by the adhesive and the screw members, and the work is simplified, and the fitting can be completed in a short time.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stepboard device for a steel staircase mainly used as an indoor staircase in a house.

[0002]

2. Description of the Related Art In steel frame stairs using iron step boards,
It has been practiced to attach a wooden stepboard on the stepboard to give an appearance suitable for an indoor staircase of a house.

FIG. 10 shows a cross section of a mounting portion of such a wooden step board in the related art. First, a plywood base plate (2) is placed on a metal step board (1) made of an iron plate material. Screws (not shown) are attached, and a wooden step board (3) is attached to the base board (2) by bonding. In the figure, (4) is the sasara girder,
(5) and (6) are bolts and nuts for fixing the metal step board (1) to the slab (4), and (7) is an upper wooden step board (3) and a lower wooden step board (3). This is a buried plate interposed between the two.

[0004]

As described above, in the prior art, two stages of mounting work are required: mounting of the base plate (2) and mounting of the wooden step board (3). There was a drawback that required effort. Further, since the wooden stepboard (3) is attached with an adhesive, there is a disadvantage that the wooden stepboard (3) cannot be used as a work floor until the adhesive is dried.

SUMMARY OF THE INVENTION An object of the present invention is to solve such a conventional drawback and to facilitate the work of mounting a wooden stepboard on a metal stepboard. It is.

[0006]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a method in which a wooden stepboard is fixed via an adhesive onto a metal stepboard attached to a sasara girder.
The wooden stepboard is also fixed to a screw member inserted from below the metal stepboard.

In the above, it is conceivable that the adhesive has a cushioning property in a solidified state, and has a height of about 1 mm between a wooden board and a metal board. .

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described.
According to the construction order, in FIG. 3, (11) is a wall frame of an outer wall or a partition wall of a building, (12) is a beam mounted on the wall frame (11), and (13) is a beam of the beam.
The second floor beam parallel to (12) is shown.

The staircase of this embodiment is a curved staircase. First, a staircase is provided between a support frame (15) erected on a first-floor foundation concrete (14) and an intermediate portion of the wall frame (11). A pair of girders (16) and (16) are bridged. The upper ends of these girder beams (16) (16) are bent horizontally,
Sasara girders (17) and (18) are attached between the bent portions in the horizontal direction and the upper end, respectively. In addition, the tip side of the horizontal bent portion is a two-step bent portion, and one end of the tip of the sasara girder (18) is the same as the tip of the saber girder (16) on the bend direction side. Is bent so as to be one step higher through the steps (19) and (19) to form a second step.

As shown in FIG. 4, iron step boards (20), (20)... Of straight sections and iron step boards (21) of bend sections are attached to the above-mentioned sasara girs (16), (16). Further, as shown in FIG. 5, the second floor side girder (22) (22) inclined in the opposite direction so as to connect to the girder (16) (16) is connected to the wall frame (11).
It is installed by bridging with the floor beam (13).

As shown in FIGS. 1 and 2, the iron stepped plate 20 of the straight portion is formed on a lower surface of both ends of a stepped plate main body 23 made of a strip-shaped iron plate, and has a V-shape as viewed from the side. The mounting plates (24) and (24) which are bent in a fixed manner are fixed, and one inclined portion (25) of the mounting plates (24) is placed on the upper surface of the slab girder (16) and bolts (26) are attached. ).

The stepped steel plate 21 at the bent portion is shown in FIGS.
As shown in the figure, the first stage plate portion (28) is moved to the second stage plate portion (29).
Are integrally formed in advance by an iron plate, and are installed so as to cover from above the space between the sasara girder joints (17) and (18), and are fixed by bolts (26) in the same manner as described above.

As shown in FIG. 5, the first and second girders are formed so that the lower end thereof forms a two-step bent portion, as shown in FIG. 5. The joint (30) is bent in two steps. At this portion, as shown in FIG. 6, an iron plate is bent in the same manner as described above, and the third step plate part (31) of the bent part and the fourth An iron step board (33) integrally formed with the step board section (32) of the step is attached, and iron step boards (20) (20) similar to the first floor side are attached to the straight section.

The step board (20) mounted as described above
(21) On the upper surface of (33), adhesive (35) is partially applied as shown in FIG.
Then, wooden steps (36) and (40) are attached as shown in FIG.

FIGS. 1 and 2 show the structure of the mounting portion of the stepped plate (20) of the straight portion. As described above, in the straight portion, the length of the iron stepped plate (20) in the longitudinal direction is changed. Adhesive (35) is applied in two rows along both ends, and wooden board
(36) is placed and adhered, and the bolt (37) inserted from the back of the step board body (23) of the iron step board (20) is inserted into the wooden step board.
Screw it into the back of (36) and fix it.

A nut (38) having a screw formed on its outer periphery is screwed into the wooden step board (36), and the bolt (37) is screwed into the nut (38) and fixed. The bolts (37) are fixed at a plurality of places, for example, about three places at intervals in the longitudinal direction of the wooden step board (36). The iron plate (20) is provided with a bolt hole (39) in advance.

Further, the wooden step board (36) protrudes from the iron step board (20) in the distal direction, and the upper end of the dent plate (42) is inserted into the groove (41) formed on the back surface of this protruding portion. The lower end of the lower plate (36) is fixed to the lower end of the wooden step board (36) by screws.

At the bend, wooden steps (40) are attached to the steps (28) (29) (31) (32) of the iron steps (21) (33), respectively. Is the same as the linear part.

At this stage, the first floor side girder (16)
Partition frame (43) between the floor girder (22) and the second floor side girder (22)
Is attached. (44) is a central pillar erected at the corner of the bent portion. Then, as shown in FIG. 9, a wall plate (45) is attached to both sides of the partition wall frame (43), and a vertical portion along the center pillar (44) and a sasara girder (22) on the second floor are provided. Kasagi (46) and (47) are attached to the handrail at the upper end of the parallel partition wall, respectively.

In the above description, the skirting (46) attached to the vertical portion has its lower end adapted to the projection of the wooden step board (40) and the outer surface of the recessed board (42) as shown in FIG. It is notched in advance so that it can be quickly mounted without any additional processing on site.

[0021]

According to the present invention, in the case of attaching a wooden board to a metal board, a wooden board is fixed with an adhesive and a screw member without attaching a plywood base board in advance as in the prior art. Therefore, the work is simple and the installation can be completed in a short time.

Further, since the wooden stepboard is attached with both the adhesive and the screw member, there is an advantage that the wooden stepboard can be used immediately without waiting for the adhesive to completely dry.

[Brief description of the drawings]

FIG. 1 is a sectional view of a mounting portion of a wooden step board according to an embodiment of the present invention.

FIG. 2 is an exploded perspective view of the same.

FIG. 3 is a perspective view of a stair in a state where a first floor side slab is attached.

FIG. 4 is a perspective view of the stairs in a state where an iron step board is attached to the first floor side girder.

FIG. 5 is a perspective view of a stair in a state where a second floor side slab is attached.

FIG. 6 is a perspective view of a stair in a state in which an iron step board is attached to a sasara girder on the second floor.

FIG. 7 is a perspective view of a stair in a state where an adhesive is applied to an iron step board.

FIG. 8 is a perspective view of a stair with a wooden step board and a stair partition wall attached.

FIG. 9 is a perspective view showing a mounting structure of a bridge on a stair partition.

FIG. 10 is a cross-sectional view of a mounting portion of a conventional wooden stepboard.

[Explanation of symbols]

 (16) (22) Sasara girder (20) (21) (33) Metal step board (35) Adhesive (36) (40) Wooden step board (37) Screw member

Claims (2)

[Claims] 1. A wooden stepboard is fixed via an adhesive onto a metal stepboard attached to a slab, and the wooden stepboard is a screw member inserted from below the metal stepboard. A stepboard device for a steel frame staircase, wherein the stepboard device is also fixed. 2. The adhesive has a cushioning property in a solidified state, and has a thickness of 1 mm between a wooden board and a metal board.
2. The stepboard device of a steel staircase according to claim 1, wherein the height is about millimeter.