JP3330312B2 - Steel plate staircase plate equipment - Google Patents

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 stepboard in the related art. First, a plywood base plate (2) is placed on a metal stepboard (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 girder (4), and (7) is an upper wooden step board (3) and a lower wooden step board (3). This is a buoyant board 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, according to the present invention, a wooden step board is fixed via an adhesive onto a metal step board attached to a slab, and the wooden step board is fixed. The stepboard was inserted from below the metal stepboard
It is characterized in that it is also fixed to bolts .

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 be connected 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. 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, when a wooden stepboard is attached to a metal stepboard, the wooden stepboard is bonded with an adhesive and a bolt without attaching a plywood base plate in advance as in the prior art.
Since it is fixed with a bolt , the work is simpler and the installation can be completed in a shorter time.

In addition, as described above, the wooden board is made of an adhesive and a bolt.
Because it is mounted in both of the door, without waiting until the adhesive is completely dried, there is an advantage that the ready-to-use as possible.

[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

Continuation of the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) E04F 11/02-11/18 F16B 39/02

Claims (1)

(57) [Claims] 1. A wooden stepboard is fixed on a metal stepboard attached to a sasara girder via an adhesive having a cushioning property in a solidified state .
A step board device for a steel staircase, wherein the step board is fixed to bolts inserted from below the metal step board.