JP3101131B2 - Mounting structure of pillars on stairs - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a column mounting structure for supporting handrails formed on both sides of a staircase.

[0002]

2. Description of the Related Art As shown in FIG. 3, handrails 9 are provided on both sides of a staircase 1 so that there is no danger of falling or the like. This handrail 9 is provided upright at the entrance of the staircase 1. Are supported by a pillar 6 and a pillar 10 formed in the middle of the stairs 1. The pillar 6 is what is called a main pillar, and is generally formed thicker than the pillar 10. This pillar 6 is shown in FIG.
It was attached to the staircase 1 as shown in (a), (b) and (c). 4A and 4B, the fixing plate 3 and the reinforcing plate 1 provided inside the recessed plate 2 of the stairs 1 are shown.
5, a tread plate 4, and a floor plate 11 are provided with through holes 12;
2, the lower end of the pillar 6 is fixed to a large pulley 13 formed below the floor plate 11. However, such a mounting method has to be performed under the floor to fix the pulley 13 to the pulley 13, which is very troublesome.

Therefore, as shown in FIG. 4C, a through hole 12 is provided in the reinforcing plate 15 and the tread plate 4 of the stairs 1, and the column 6 is inserted into the through hole 12, and the lower end of the column 6 is screwed to the fixing plate 3. 14
To fix the pillar 6 to the stairs 1.
With this mounting method, work under the floor is eliminated, and the pillar 6 can be easily mounted.

[0004]

However, in the case shown in FIG. 4B, it is necessary to fix the lower end of the pillar 6 to the lower side of the tread plate 4, and when the work of attaching the tread plate 4 is performed, Mounting must also be performed, and it has not been possible to select and mount the pillar 6 having the required height after the construction of the tread plate 4.

[0005] The present invention has been made in view of the above points, and an object of the present invention is to provide a structure for attaching a pillar to a stair, which can select and attach the pillar after the construction of the tread.

[0006]

According to the present invention, there is provided a structure for mounting a pillar on a staircase according to the present invention. A through-hole 5 is formed, the support rod 7 is inserted into the through-hole 5 of the tread plate 4, the lower end of the support rod 7 is fixed to the fixing plate 3, an insertion hole 8 is provided in the lower surface of the column 6, and the upper side of the upper surface of the tread plate 4 The insertion hole 8 is inserted into the upper part of the support rod 7 projecting from the support rod 7, and the column 6 is fixed to the support rod 7.

In the present invention, a female screw 16 is formed on the fixing plate 3, and a male screw 17 is provided at the lower end of the support rod 4. The support bar 4 can be fixed.

[0008]

The fixing plate 3 is provided inside the recessed plate 2 of the stair 1 and the through hole 5 is formed in the tread 4 of the stair 1 above the fixing plate 3, and the support rod 7 is inserted into the through hole 5 of the tread 4. Then, the lower end of the support rod 7 is fixed to the fixing plate 3, an insertion hole 8 is provided in the lower surface of the pillar 6, and the insertion hole 8 is inserted into the upper part of the support rod 7 projecting upward from the upper surface of the tread plate 4. Since the pillar 6 is fixed to the support plate 7, the lower end of the pillar 6 can be attached to the upper part of the support rod 7 projecting upward from the upper surface of the tread plate 4.

[0009]

The present invention will be described below in detail with reference to examples. FIG.
Shows a member constituting the staircase 1, and the recessed plate 2 is bent back at one side end of the front plate portion 2a to bend 2b.
The reinforcing plate 15 and the fixing plate 3 are mounted vertically inside the bent portion 2b. A through hole 12 is formed in a substantially central portion of the reinforcing plate 15, and an onion nut 18 is embedded as a female screw 16 in a substantially central portion of the fixing plate 3.

The step board 4 (starting step) of the staircase 1 is formed by bending one side end face of the flat board into the bent portion 2b of the board 2.
And a through-hole 5 is provided at an end on the curved surface portion 4a side. The pillar 6 may be a prism or a cylinder, but FIG. 2 shows a prism. An insertion hole 8 is opened in the lower surface of the pillar 6.

The support rod 7 has the same cross-sectional shape as the opening of the insertion hole 8, and its cross-sectional area is
It is formed slightly smaller than the opening. A bolt 19 is embedded and attached as a male screw 17 at the lower end of the support rod 7, and the tip of the bolt 19 projects from the lower end of the support rod 7. Then, the lowermost step of the stairs 1 is formed by mounting the depression plate 2 on the upper surface of the floor plate 11 and attaching the tread plate 4 on the upper side of the depression plate 2. At this time, the onion nut 18 provided on the fixing plate 3 of the burr plate 2 and the reinforcing plate 1
The through holes 12 provided in the step 5 and the through holes 5 of the tread plate 4 are vertically aligned. Next, the lower end of the support rod 7 is inserted from the through hole 5 of the tread plate 4 of the stairs 1 to penetrate the through hole 12 of the reinforcing plate 15, and the bolt 19 at the lower end of the support rod 7 is embedded in the fixing plate 3. The support rod 7 is fixed to the fixing plate 3 by screwing into the fixing plate 18. At this time, as shown in FIG. 1A, the upper part of the support bar 7 is made to protrude above the upper surface of the tread plate 4. Finally, the pillar 6 can be attached to the stairs 1 as shown in FIG. 1B by inserting the insertion hole 8 of the pillar 6 into the upper part of the support rod 7 and bonding it with an adhesive.

When the pillar 6 is attached to the stairs 1 as described above, the construction of the stairs 1 and the work of attaching the pillars 6 can be performed separately. That is, the stairs 1 are formed by mounting the treads 4 on the upper side of the recessed plate 2, and then the support rods 7 are inserted and fixed through the through holes 5 provided in the treads 4. The pillar 6 can be erected on the floor. If the column 6 is attached after the stairs 1 are formed in this way, even if the height of the column 6 has to be changed in accordance with the change in the height of the handrail 9, the column 6 can be removed from the support bar 7. The height of the column 6 can be easily changed only by extracting and inserting the column 6 of another height into the support rod 7.

[0013]

As described above, according to the present invention, a fixing plate is provided inside a baffle plate of a stair, a through hole is formed in a tread of the stair above the fixing plate, and a support rod is inserted into the through hole of the tread plate. The lower end of the support rod was fixed to the fixing plate with a, and an insertion hole was provided on the lower surface of the pillar, and the insertion hole was inserted into the upper part of the support rod projecting upward from the upper surface of the tread plate, and the pillar was fixed to the support rod. The pillar can be attached to the upper part of the support rod projecting above the upper surface of the tread, and the pillar can be selectively attached after the construction of the tread plate.

Further, since a female screw is formed on the fixed plate and a male screw is provided at the lower end of the support rod, and the male screw of the support rod is screwed into the female screw of the fixed plate to fix the support rod to the fixed plate. A support rod is inserted and fixed from a through hole provided in the tread plate, and a column can be attached to the support rod.

[Brief description of the drawings]

FIGS. 1A and 1B are cross-sectional views showing an embodiment of the present invention in the middle of construction, and FIGS.

FIG. 2 is an exploded perspective view showing the above members.

FIG. 3 is a perspective view of a conventional example.

FIG. 4A is a plan view, and FIGS. 4B and 4C are cross-sectional views.

[Explanation of symbols]

 DESCRIPTION OF REFERENCE NUMERALS 1 stairs 2 burr plate 3 fixing plate 4 tread plate 5 through hole 6 pillar 7 support rod 8 insertion hole 16 female screw 17 male screw

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

Claims (2)

(57) [Claims] 1. A stabilizing plate is provided inside a stairwell plate, a through hole is formed in a stair tread plate above the stabilizing plate, and a support rod is inserted into the through hole of the tread plate so that a lower end of the support rod is fixed to the stabilizing plate. Characterized in that a fixing hole is provided on the lower surface of the pillar, a supporting hole protruding above the upper surface of the tread plate is provided in the lower surface of the supporting plate, and the supporting hole is inserted into the upper portion of the supporting rod and the pillar is fixed to the supporting rod. Mounting structure. 2. A female screw is formed on a fixing plate, a male screw is provided at a lower end of a supporting rod, and a male screw of the supporting rod is screwed into the female screw of the fixing plate to fix the supporting rod to the fixing plate. The structure for attaching a pillar to a staircase according to claim 1.