JPH0547177U - Indoor stair treads - Google Patents

Abstract

(57) [Summary] [Purpose] When assembling the treads to the sasara girder, each tread can be easily assembled by bolting at one place and welding at one place, and the mounting piece can be attached to the next tread. The present invention aims to provide a tread for indoor stairs with less noise and a good appearance by using a damping steel plate by using it for placing the tread. A mounting portion 2 extending downward from the horizontal direction is formed at an upper end portion of the riser portion 1, and a lower end side of the riser portion is bulged and curved to store a welding margin / vibration damping steel plate and a finish material. Part 6 and the rear end of the tread receiving part 7 is inclined downward to form an inclined part 8 and a rising part 9 is formed from the end, and a mounting piece 10 is provided between the inclined part and the rising part. An indoor stair tread plate that is welded and has the next-stage mounting part mounted on the mounting piece and the damping steel plate 4 and the finishing material 5 bonded to the tread receiving part.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a tread for indoor stairs that is continuously assembled to a sasara girder.

[0002]

[Prior Art]

 A metal tread plate in which a kicking part and a tread receiving part, which are continuously assembled to a girder to form a staircase, are integrally formed in a substantially L shape, and an inserting part extending horizontally in the upper end part of the kicking part. In addition, a checkerboard and a finishing material storage section are formed on the lower end side of the riser section, and two fixing nuts are arranged on the lower surface of the tread receiving section. It is known as disclosed in Japanese Utility Model Laid-Open No. 3-2124.

[0003]

[Problems to be solved by the device]

 By the way, in the above-mentioned prior art, there are two bolt fixing positions for one tread, and there is this for each tread. Therefore, it is necessary to make the positional relationship accurate with each other. There is a problem that the device is stable and complicated, and noise is generated due to the use of the checker plate.

The present invention has been made in view of the above problems of the prior art, and an object thereof is to attach each tread to one bolt when assembling the tread to the sasara girder. It can be easily assembled by welding at one place, and by using the mounting piece for mounting the next step plate, it is possible to connect the step plates with ease and certainty. It is intended to provide a beautifully-looking indoor stair tread with less noise by using it.

[0005]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, an indoor stair tread according to the present invention has a mounting portion extending downward from the horizontal direction at the upper end of the kicking portion, and the lower end side of the kicking portion is bulged and curved. As a storage part for the welding allowance and damping steel plate and finish material, and further tilting the rear end part of the tread receiving part downward to form a rising part and forming a rising part from that end, and rising part with the inclined part. It is characterized in that a mounting piece is welded between the parts, the mounting portion of the next stage is mounted on the mounting piece, and a damping steel plate and a finishing material are attached to the tread receiving portion. is there.

[0006]

[Action]

 When the tread plate is mounted on the sasara girder, the tread plate is mounted sequentially from the upper side to the lower side. That is, when the upper step plate is stopped on the girder by bolts and welding, the placing part of the lower step plate is placed on the upper mounting piece and the tip of the placing part is spot-welded to the upper step plate. Then, the bolt is inserted from the girder side into the nut fixed to the mounting piece to stop the tread plate in place, and the bulging and curved welding margin on the lower end side of the riser is fixed. Welded to sasara girder.

When the tread plate is assembled to the sasara girder in this manner, the damping steel plate and the finishing material are attached to the tread receiving portion. At this time, the tips of the damping steel plate and the finishing material are accommodated in the bulging and curved welding margin and damping steel sheet and the finishing material storage area on the lower end side of the riser. It does not appear on the surface.

[0008]

【Example】

 An embodiment of the present invention will be described with reference to FIGS. 1 and 2. In FIG. 1, reference numeral 1 denotes a riser portion, and the riser portion 1 has a mounting portion 2 formed at the upper end thereof extending downward from the horizontal direction, and the lower end side of the riser portion 1 has a welding margin. The portion 3 is formed and is bulged and curved so as to become the storage portion 6 for the damping steel plate 4 and the finishing material 5. The lower end of the welding margin portion 3 is continuous with the tread receiving portion 7, and the riser portion 1 and the tread receiving portion 7 are substantially L-shaped and integrated.

The rear end portion of the tread receiving portion 7 is inclined downward to form an inclined portion 8, and a rising portion 9 that rises upward from the end portion of the inclined portion 8 is continuously formed.

A mounting piece 10 is welded between the inclined portion 8 and the rising portion 9, and a nut 11 is welded to the mounting piece 10.

A damping steel plate 4 and a finishing material 5 such as a synthetic resin tile are attached to the tread receiving portion 7, and 12 is a non-slip material.

With the above-described structure, when the tread plate is assembled to both sasara girders (not shown) to manufacture the stairs, the tread plate is assembled from the upper part to the lower part in order. That is, when the upper tread plate 13 (shown in phantom) is stopped by the bolt 14, the mounting portion 2 of the lower tread plate is mounted on the upper mounting piece 15 and then the mounting piece 10 A bolt is inserted from the side of the girder into the nut 11 fixedly attached to the tread plate to stop it at a predetermined position. After that, the welding margin portion 3 is welded to the sasara girder.

When each tread plate is assembled to the sasara girder in this manner, the damping steel plate 4 is bonded to the upper surface of the tread receiving portion 7, and the non-slip material 12 and the finishing material 5 are further bonded to the upper surface thereof. At this time, the tips of the damping steel plate 4 and the finishing material 5 are accommodated in the storage portion 6 of the bulging curved welding margin portion 3 and the damping steel plate 4 and the finishing material 5 on the lower end side of the riser 1. Become so. The welding margin 3 is hidden by the damping steel plate 4 and the finishing material 5 so that it does not appear on the surface, and the rising surface of the finishing material 5 is flush with the riser 1 to improve the appearance. ..

FIG. 2 shows another embodiment according to the present invention, which is substantially the same as the first embodiment except that a non-slip material is not used, and therefore the same reference numerals are given and the description thereof is omitted. I will omit it. When the damping steel plate 4 is attached to the upper surface of the tread receiving portion 7 and the finishing material 5 is attached to the upper surface of the damping steel plate 4, the rear ends of the damping steel plate 4 and the finishing material 5 are connected to the next step plate. It is designed to be extended to a part of the kicking part and to be attached.

[0015]

[Effect of the device]

 The tread for indoor stairs according to the present invention can be assembled easily and accurately because each tread can be attached by bolting at one place and welding at one place when assembling the tread to the sasara girder. In addition, since the mounting piece can be used for placing the tread in the next stage, the treads can be connected easily and securely and the parts can be saved.

Further, by using the vibration damping steel plate, a staircase with very little noise can be obtained, and the welded portion is a tread plate for indoor stairs which is concealed by the vibration damping steel plate and the finishing material and has a good appearance.

[Brief description of drawings]

FIG. 1 is a side cross-sectional view of an indoor stair tread according to the present invention.

FIG. 2 is a side sectional view of another embodiment of the indoor stair tread according to the present invention.

[Explanation of symbols]

 1 Raising part 2 Placement part 3 Welding margin part 4 Damping steel plate 5 Finishing material 6 Storage part 7 Tread receiving part 8 Inclined part 9 Rising part 10 Mounting piece

Claims (1)

[Scope of utility model registration request] 1. A metal tread plate having a substantially L-shaped integrally formed kicking portion and tread receiving portion that are continuously assembled to a sasara girder to form a staircase. From the lower end side of the riser to form a storage portion for the welding allowance / vibration damping steel plate and the finishing material, and the rear end portion of the tread receiving portion downward. To form a rising part from the end of the sloped part, and attach a mounting piece between the sloped part and the rising part,
An indoor stair tread, characterized in that the next-stage mounting part is mounted on the mounting piece and a damping steel plate and a finishing material are attached to the tread receiving part.