Handrail pole unit

Abstract

Compared to a method that suppresses buckling of the handrail pole using a connection structure of elongated holes and pins, this method suppresses buckling of the handrail pole while also suppressing horizontal bending of the handrail pole when a horizontal force is applied to it. [Solution] The handrail pole unit comprises a columnar handrail pole extending from the upper surface of the floor slab toward the lower surface of the ceiling slab, and a columnar fitting member attached to the lower surface of the ceiling slab or the upper surface of the floor slab, which fits into the upper or lower end portion of the handrail pole so as to be movable relative to the handrail pole in the vertical direction.

Description

Technical Field

[0001] The present disclosure relates to a handrail pole unit.

Background Art

[0002] The handrail type care assistance unit described in Patent Document 1 includes: a pole portion composed of an upper fixing part to be brought into contact with a ceiling surface, a lower fixing part to be installed on a floor surface, an upper pole hanging down from the upper fixing part, and a lower pole rising from the lower fixing part; a lock mechanism portion that connects the opposing ends of the upper pole and the lower pole in series in a lockable and unlockable manner, and fixes and arranges the upper pole and the lower pole in an integrated upright state at a desired position between the ceiling surface and the floor surface; and a handrail portion arranged at an arbitrary position of the pole portion in parallel with the pole portion and detachably attached to the pole portion.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of Invention

Problems to be Solved by the Invention

[0004] Conventionally, the upper end portion of a handrail pole extending in the vertical direction is attached to the lower surface of a ceiling slab, and the lower end portion of the handrail pole is attached to the upper surface of a floor slab. Here, the upper end portion of the handrail pole adopts a connection structure of an elongated hole and a pin. With this structure, the handrail pole is prevented from buckling even when the ceiling slab moves downward due to creep deformation of the ceiling slab.

[0005] However, in such a configuration, when a horizontal force acts on the handrail pole, the handrail pole easily bends in the horizontal direction.

[0006] The problem addressed by this disclosure is to suppress buckling of the handrail pole, and to suppress horizontal bending of the handrail pole when a horizontal force is applied to it, compared to the case in which buckling of the handrail pole is suppressed by a connection structure of elongated holes and pins. [Means for solving the problem]

[0007] The handrail pole unit according to the first embodiment is characterized by comprising a columnar handrail pole extending from the upper surface of the floor slab toward the lower surface of the ceiling slab, and a columnar fitting member attached to the lower surface of the ceiling slab or the upper surface of the floor slab, which fits into the upper or lower end portion of the handrail pole so as to be movable relative to the handrail pole in the vertical direction.

[0008] According to the above embodiment, even if the ceiling slab moves downward, the fitting member fitted to the upper or lower end of the handrail pole moves relative to the handrail pole. As a result, compared to the case in which buckling of the handrail pole is suppressed by a connection structure of an elongated hole and a pin, it is possible to suppress buckling of the handrail pole and also suppress the bending of the handrail pole horizontally when a horizontal force is applied to the handrail pole.

[0009] The handrail pole unit according to the second embodiment is characterized in that, in the handrail pole unit according to the first embodiment, the handrail pole is formed in a tubular shape and the fitting member is inserted inside the handrail pole.

[0010] According to the above embodiment, a fitting member is inserted inside the handrail pole. This makes it possible to suppress scratches, abrasions, and other damage that may occur on the outer surface of the handrail pole when the fitting member moves relative to the handrail pole. [Effects of the Invention]

[0011] According to this disclosure, compared to the case in which buckling of the handrail pole is suppressed by a connection structure of elongated holes and pins, it is possible to suppress buckling of the handrail pole and also suppress the bending of the handrail pole horizontally when a horizontal force is applied to the handrail pole. [Brief explanation of the drawing]

[0012] [Figure 1] This is a front view showing the overall configuration of a handrail pole unit according to the first embodiment of this disclosure. [Figure 2] This is a perspective view showing the lower mounting unit of the handrail pole unit according to the first embodiment of this disclosure. [Figure 3] This is a perspective view showing the upper mounting unit of the handrail pole unit according to the first embodiment of this disclosure. [Figure 4] (A)(B) These are explanatory diagrams used to illustrate the installation sequence of the handrail pole unit according to the first embodiment of this disclosure. [Figure 5] (A)(B) A diagram showing the upper mounting unit of a handrail pole unit according to the first embodiment of the present disclosure, in which the ceiling slab has moved downward from its initial position. [Figure 6] This is a perspective view showing the upper mounting unit of the handrail pole unit according to the second embodiment of this disclosure. [Modes for carrying out the invention]

[0013] <First Embodiment> An example of a handrail pole unit according to the first embodiment of this disclosure will be described with reference to Figures 1 to 5. The arrow H shown in each figure indicates the vertical direction, which is the up-down direction of the handrail pole unit. The arrow W shown in each figure is perpendicular to arrow H and indicates the horizontal direction, which is the width direction of the handrail pole unit. The arrow D shown in each figure is perpendicular to arrows H and W and indicates the horizontal direction, which is the depth direction of the handrail pole unit.

[0014] (Overall configuration of the handrail pole unit 10) As shown in Figure 1, the handrail pole unit 10 includes a handrail pole 12. Further, the handrail pole unit 10 includes a lower mounting unit 20 for attaching the lower end portion of the handrail pole 12 to the floor slab 52, and an upper mounting unit 30 for attaching the upper end portion of the handrail pole 12 to the ceiling slab 62.

[0015] [Handrail Pole 12] As shown in Figure 1, the handrail pole 12 is formed into a circular tubular shape extending in the vertical direction, and is formed into a columnar shape extending from the upper surface 52a of the floor slab 52 toward the lower surface 62a of the ceiling slab 62. The upper end portion of the handrail pole 12 is spaced apart from the lower surface 62a of the ceiling slab 62.

[0016] [Lower Mounting Unit 20] As shown in Figure 1 and Figure 2, the lower mounting unit 20 has a mounting plate 22 placed on the upper surface 52a of the floor slab 52, and an inner pipe 26 for positioning the lower end portion of the handrail pole 12.

[0017] -Mounting Plate 22- The mounting plate 22 has a rectangular shape when viewed from above, and through-holes (not shown) penetrating in the vertical direction are formed at the four corners of the mounting plate 22. Anchor bolts 54 provided on the floor slab 52 are inserted into these through-holes. Further, by tightening nuts 56 onto the anchor bolts 54, the lower mounting unit 20 is attached to the floor slab 52.

[0018] -Inner Pipe 26- The inner pipe 26 is disposed to extend in the vertical direction, and the lower end portion of the inner pipe 26 is fixed to the mounting plate 22 by welding. Further, by inserting the inner pipe 26 into the interior of the lower end portion of the handrail pole 12, the inner pipe 26 is fitted to the lower end portion of the handrail pole 12. In this manner, the inner pipe 26 functions as a positioning member that determines the position of the handrail pole 12 in the horizontal direction.

[0019] Further, the lower end portion of the handrail pole positioned by the inner pipe is fixed to the mounting plate by welding. Here, the vertical overlap allowance (lap allowance) between the inner pipe and the handrail pole is set to be equal to or larger than the diameter of the handrail pole.

[0020] Note that, in the present embodiment, as shown in Figure 1, the plate-shaped floor material is provided spaced apart from the floor slab in the vertical direction, and the lower mounting unit is arranged below the floor material.

[0021] [Upper Mounting Unit] As shown in Figure 1 and Figure 3, the upper mounting unit includes a mounting plate that covers the lower surface of the ceiling slab from below, and an inner pipe that fits with the upper end portion of the handrail pole. The inner pipe is an example of a fitting member.

[0022] -Mounting Plate- The mounting plate has a rectangular shape when viewed from below, and through-holes (not shown) penetrating in the vertical direction are formed at the four corners of the mounting plate. Anchor bolts provided on the ceiling slab are inserted into these through-holes. Further, by tightening nuts onto the anchor bolts, the upper mounting unit is mounted to the ceiling slab.

[0023] -Inner Pipe- The inner pipe is arranged to extend in the vertical direction, and the upper end portion of the inner pipe is fixed to the mounting plate by welding. Furthermore, by inserting the inner pipe into the inside of the upper end portion of the handrail pole, the inner pipe is fitted to the upper end portion of the handrail pole.

[0024] Further, the upper end portion of the handrail pole with the inner pipe inserted therein is spaced apart from the mounting plate in the vertical direction. Thereby, the inner pipe is made movable relative to the handrail pole in the vertical direction.

[0025] Here, the vertical overlap (lap allowance) between the inner pipe 36 and the handrail pole 12 is set to be greater than or equal to the diameter of the handrail pole 12.

[0026] In this embodiment, the plate-shaped ceiling material 68 is provided at a vertical distance from the ceiling slab 62, as shown in Figure 1, and the upper mounting unit 30 is positioned above the ceiling material 68.

[0027] (Construction procedure, function) Next, the installation procedure and operation of the handrail pole unit 10 will be explained in order. First, the lower end of the handrail pole 12 shown in Figure 2 is welded to the mounting plate 22, and with the inner pipe 36 of the upper mounting unit 30 inserted into the upper end of the handrail pole 12, the lower mounting unit 20 is attached to the floor slab 52 as shown in Figure 4(A). Specifically, the anchor bolts 54 provided in the floor slab 52 are inserted into the through holes formed in the mounting plate 22, and nuts 56 are tightened onto the anchor bolts 54.

[0028] Next, as shown in Figure 4(B), the upper mounting unit 30 is lifted, and anchor bolts 64 provided in the ceiling slab 62 are inserted into the through holes in the mounting plate 32, and nuts 66 are tightened onto the anchor bolts 64.

[0029] In this manner, the handrail pole unit 10 attached to the floor slab 52 and ceiling slab 62 is configured such that the inner pipe 36 of the upper mounting unit 30 can move relative to the handrail pole 12 in the vertical direction.

[0030] Therefore, as shown in Figures 5(A) and (B), even if the ceiling slab 62 moves downward due to forced creep deformation, the inner pipe 36 moves relative to the handrail pole 12.

[0031] (summary) As explained above, in the handrail pole unit 10, even when the ceiling slab 62 moves downward, the inner pipe 36 moves relative to the handrail pole 12. Furthermore, the upper end portion of the handrail pole 12 overlaps with the inner pipe 36 of the upper mounting unit 30 in the vertical direction. Therefore, compared to the case where buckling of the handrail pole is suppressed by a connection structure of elongated holes and pins, it is possible to suppress buckling of the handrail pole 12 and also suppress the bending of the handrail pole 12 in the horizontal direction when a horizontal force is applied to the handrail pole 12.

[0032] Furthermore, in the handrail pole unit 10, the handrail pole 12 is tubular, and an inner pipe 36 is inserted inside the handrail pole 12. Therefore, when the inner pipe 36 moves relative to the handrail pole 12, it is possible to suppress scratches, abrasions, etc. from occurring on the outer surface of the handrail pole 12.

[0033] <Second Embodiment> An example of a handrail pole unit according to the second embodiment of this disclosure will be described with reference to Figure 6. Note that the second embodiment will primarily describe the differences from the first embodiment.

[0034] (Overall configuration of handrail pole unit 110) As shown in Figure 6, the handrail pole unit 110 comprises a handrail pole 12, a lower mounting unit 20 (see Figure 2), and an upper mounting unit 130 for attaching the upper end portion of the handrail pole 12 to the ceiling slab 62.

[0035] [Upper mounting unit 130] As shown in Figure 6, the upper mounting unit 130 includes a mounting plate 32 and an outer pipe 136 that fits with the upper end portion of the handrail pole 12. The outer pipe 136 is an example of a fitting member.

[0036] The outer pipe 136 is positioned to extend vertically, and its upper end is fixed to the mounting plate 32 by welding. Furthermore, the upper end portion of the handrail pole 12 is inserted into the outer pipe 136, thereby fitting the outer pipe 136 to the upper end portion of the handrail pole 12.

[0037] Furthermore, the upper end of the handrail pole 12, which has its upper end inserted into the outer pipe 136, is separated from the mounting plate 22 in the vertical direction. This allows the outer pipe 136 to move relative to the handrail pole 12 in the vertical direction.

[0038] Here, the vertical overlap (lap allowance) between the outer pipe 136 and the handrail pole 12 is set to be greater than or equal to the diameter of the handrail pole 12.

[0039] Although this disclosure has described specific embodiments in detail, it will be apparent to those skilled in the art that this disclosure is not limited to these embodiments, and that various other embodiments are possible within the scope of this disclosure. In the above embodiments, an inner pipe 36 or an outer pipe 136 is provided at the upper end of the handrail pole 12, but an inner pipe or an outer pipe may be provided at the lower end of the handrail pole 12. In other words, a fitting member may be provided at the lower end of the handrail pole 12.

[0040] Furthermore, in the above embodiment, an inner pipe 36 or an outer pipe 136 is provided at the upper end portion of the handrail pole 12, but an inner pipe or an outer pipe may be provided at both the upper and lower end portions of the handrail pole 12. In other words, fitting members may be provided at both the upper and lower end portions of the handrail pole 12.

[0041] Furthermore, in the first embodiment described above, the fitting member was a tubular inner pipe 36, but it may also be a solid member.

[0042] Furthermore, although the handrail pole 12 was tubular in the second embodiment described above, it may also be a solid member. In this case, the inner pipe 26 of the lower mounting unit 20 becomes the outer pipe.

[0043] Furthermore, although the handrail pole 12 had a circular cross-section in the above embodiment, its cross-section may be elliptical or polygonal, etc. In this case, the cross-section of the fitting member will also be elliptical or polygonal, etc.

[0044] Furthermore, in the above embodiment, the lower mounting unit 20 has a mounting plate 22 placed on the upper surface 52a of the floor slab 52 and an inner pipe 26 for positioning the lower end portion of the handrail pole 12, but the inner pipe 26 may be omitted.

[0045] Furthermore, in the above embodiment, the lower end of the pole 12 was fixed to the mounting plate 22 by welding, but other fixing methods such as bolts may be used instead of welding. [Explanation of symbols]

[0046] 10 Handrail pole units 12 Handrail poles 36. Inner pipe (an example of a fitting member) 52 Floor slab 52a Top side 62 Ceiling slab 62a Bottom side 110 Handrail pole unit 136 Outer pipe (an example of a fitting member)

Claims

1. A columnar handrail pole extending from the top surface of the floor slab to the bottom surface of the ceiling slab, A columnar fitting member is attached to the lower surface of the ceiling slab or the upper surface of the floor slab, and is fitted to the upper or lower end portion of the handrail pole so as to be movable relative to the handrail pole in the vertical direction, A handrail pole unit equipped with [a specific feature / feature].

2. The handrail pole is formed in a tubular shape, and the fitting member is inserted inside the handrail pole. The handrail pole unit according to claim 1.

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