Handrail device

Abstract

To provide a handrail device in which at least one of a first handrail and a second handrail is rotatable by a predetermined angle.SOLUTION: A handrail device is provided with a support 3 provided on a floor surface in a posture along the vertical direction, and a first handrail 4 and a second handrail 5 attached to two positions in the circumferential direction of the support 3 so as to extend radially outward from the support 3, and at least one of the first handrail 4 and the second handrail 5 is rotatable around the center axis of the support 3.SELECTED DRAWING: Figure 8

Description

[Technical Field]

[0001] The present invention relates to a handrail device. [Background technology]

[0002] For example, Patent Document 1 states that "a horizontal T-shaped bracket support hardware 2 is fixed to a pole 1 with a bolt 3, a decorative cover 4 is fixed to the bracket support hardware 2 with bolts 5, 5, a universal joint A consisting of a hollow sphere 9 and connecting pipes 10, 10 is fixed onto the bracket 6, and handrails 27, 27 are fixed to the connecting pipes 10, 10."

[0003] Furthermore, the above-mentioned Patent Document 1 states that "the lower hollow hemisphere 9a is attached so as to be freely rotatable upward, and the upper hollow hemisphere 9b is fitted onto the hollow hemisphere 9a so as to be freely rotatable downward, and the two hollow hemispheres 9a, 9b form the hollow sphere 9."

[0004] For example, Patent Document 2 describes a "handrail for a building in which first and second handrails are attached non-rotatably to two locations on a support pole that are 180 degrees apart in the circumferential direction."

[0005] Furthermore, Patent Documents 3 and 4 disclose handrail devices that can be installed with a single support in narrow spaces such as entrance approaches. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Patent No. 4974024 (JP 2007-192014) [Patent Document 2] Design Registration No. 1592727 [Patent Document 3] Patent No. 4974911 (JP 2009-167675) [Patent Document 4] Patent No. 6491541 (JP 2016-223151) Summary of the Invention [Problem to be solved by the invention]

[0007] In the above Patent Document 1, of the two handrails 27, 27, one handrail 27 attached to the lower hollow hemisphere 9a via a connecting pipe 10 is in a horizontal position, and the other handrail 27 attached to the upper hollow hemisphere 9b via a connecting pipe 10 is in an upwardly angled position, but Patent Document 1 does not give any insight into the technical idea of ​​making at least one handrail 27 rotatable by a predetermined angle.

[0008] Furthermore, in the above Patent Document 2, the first and second handrails are fixed so that they cannot be rotated, and therefore Patent Document 2 does not give any insight into the technical idea of ​​making at least one of the handrails 27 rotatable by a predetermined angle.

[0009] Furthermore, in Patent Document 3, the handrail support is supported so that it can tilt at a predetermined angle around an imaginary axis perpendicular to the central axis of the support post, but the handrail support is not supported so that it can rotate around the central axis of the support post.In Patent Document 4, the handrail bar is not supported so that it can rotate around the central axis of the support post.

[0010] Therefore, in the above Patent Documents 1-4, when installing a building handrail in a location very close to the boundary line between a building and a road or an adjacent building, or in a location where there is a shutter at the entrance or exit of a building, there is a risk that the first or second handrail will cross the boundary line or interfere with the shutter, making it difficult to install the building handrail.

[0011] In view of the above circumstances, an object of the present invention is to provide a handrail device in which at least one of the first handrail and the second handrail can be rotated by a predetermined angle. [Means for solving the problem]

[0012] The handrail device of the present invention comprises a support post that is installed on the floor surface in an up-and-down orientation, and a first handrail and a second handrail that are attached to the support post at two circumferential positions so as to extend radially outward from the support post, and at least one of the first handrail and the second handrail is rotatable around the central axis of the support post.

[0013] This configuration makes it possible to change the angle between the first handrail and the second handrail. The handrail device can be used, for example, by arranging the first handrail and the second handrail in a straight line when viewed from above, or by setting the angle between the first handrail and the second handrail 5 to a range of, for example, 45 degrees to 90 degrees.

[0014] As a result, when the first handrail and the second handrail are aligned in a straight line, their overall length increases, allowing the user to effectively grasp the entire length of the first and second handrails. On the other hand, when the angle between the first handrail and the second handrail 5 is set in the range of, for example, 45 to 90 degrees, the user can more easily grasp the handrail firmly than when they are aligned in a straight line, making it easier for the user to support their body, especially if the user is an elderly person with little strength.

[0015] In the above handrail device, one end of the first handrail and one end of the second handrail can be attached to the top of the support pole, and the one end of the first handrail and the other end of the second handrail can be attached to a midpoint in the vertical direction on the support pole.

[0016] Furthermore, the handrail device may be configured such that a joint is provided on an upper portion of the support post for connecting one end of the first handrail and one end of the second handrail.

[0017] Furthermore, in the handrail device, the joint can be configured to include a support member that is provided on the top of the support pole and to which one end of the second handrail is fixed, and a rotating member that is provided rotatably relative to the support member and to which one end of the first handrail is fixed.

[0018] Furthermore, in the handrail device, the attachment position of the other end of the first handrail relative to the support pole can be configured to be shifted lower or higher than the attachment position of the other end of the second handrail relative to the support pole. [Effects of the Invention]

[0019] According to the present invention, it is possible to provide a handrail device in which at least one of the first handrail and the second handrail can be rotated by a predetermined angle. [Brief explanation of the drawings]

[0020] [Figure 1] 1 is a perspective view of an embodiment of a handrail device according to the present invention, viewed obliquely from above. [Figure 2] FIG. 2 is a perspective view of the handrail device as seen from diagonally below. [Figure 3] FIG. [Figure 4] 10 is a cross-sectional view illustrating a manner in which the inner tube is attached to the outer tube and a manner in which the connecting shaft of the lower member is attached to the inner tube. FIG. [Figure 5] FIG. [Figure 6] This is a view seen from the direction of the arrow (6) in FIG. 5. [Figure 7] FIG. 2 is a side view showing the handrail device installed on a staircase. [Figure 8] FIG. 10 is a top view showing a state in which the first handrail of the handrail device has been rotated by a predetermined angle. [Figure 9] This is a view seen from the direction of the arrow (9) in FIG. [Figure 10] FIG. 10 is a top view showing a state in which the second handrail of the handrail device has been rotated by a predetermined angle. [Figure 11] FIG. 10 is a side view showing a state in which a handrail device according to another embodiment of the present invention is installed on a staircase. DETAILED DESCRIPTION OF THE INVENTION

[0021] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0022] An embodiment of the present invention is shown in Figures 1 to 10. As shown in Figure 1, the handrail device 1 in the illustration comprises a base 2, a support 3, a first handrail 4, a second handrail 5, and the like.

[0023] The base 2 is installed immovably on a floor surface (such as a horizontal surface), and as shown in Figure 3, is configured such that a left member 21 and a right member 22 are connected by fastening members such as a bolt 23 and a nut 24.

[0024] As shown in FIG. 3, the left member 21 and the right member 22 are both configured such that semicircular flanges 21b, 22b are integrally provided at one axial end (lower end) of semicylindrical tubes 21a, 22a.

[0025] When the semi-cylindrical tube 21a of the left member 21 and the semi-cylindrical tube 22a of the right member 22 are connected, they form a single cylindrical tube, and when the semi-circular flange 21b of the left member 21 and the semi-circular flange 22b of the right member 22 are connected, they form a single circular flange.

[0026] As shown in FIG. 7, both semicircular flanges 21b and 22b are placed on an appropriate floor surface (the upper surface of the lower step 81 of the stairs 8) and fixed immovably by fastening members such as bolts 25.

[0027] The bolts 23 are inserted into two through holes (reference numerals omitted) in the semi-cylindrical tube 21a of the left member 21 and protrude outward from two through holes (reference numerals omitted) in the semi-cylindrical tube 22a of the right member 22. Nuts 24 are threaded onto the protruding portions (threaded shaft portions, reference numerals omitted) of the bolts 23, thereby connecting the left member 21 and the right member 22. The bolts 23 and nuts 24 are also used when attaching the support 3 to the base 2.

[0028] The support column 3 is configured so that the length along the axial direction is adjustable, and is attached to the base 2 so that the axial direction is vertical.

[0029] Specifically, the support column 3 is configured such that the inner tube 32 is fitted into the inner diameter side of one axial end opening (upper end opening) of the outer tube 31 so as to be relatively displaceable in the axial and circumferential directions. The other axial end (lower end) of the outer tube 31 is fixed to the base 2. As shown in Fig. 4, a cap member 33 is inserted between the outer tube 31 and the inner tube 32 so as to be adjustable in height, and the inner tube 32 is fixed to the outer tube 31 by threading a set screw 34 from the outside of a threaded hole 35 of the outer tube 31 into a threaded hole 36 of the cap member 33 and pressing it against the outer peripheral surface of the inner tube 32.

[0030] The outer pipe 31 is fitted into the inner hole formed by the two semi-cylindrical pipes 21 a and 22 a of the base 2 and is attached inseparably by a bolt 23 and a nut 24 .

[0031] Specifically, a total of four through holes 31a are provided at two locations spaced apart in the axial direction and two locations facing each other at 180 degrees in the circumferential direction on the other axial end (lower end) side of the outer pipe 31. The bolts 23 are inserted into one of the two circumferential through holes 31a spaced apart in the axial direction and project outward from the other remaining through hole 31a, and by screwing nuts 24 onto the projecting portions of the bolts 23 (threaded shaft portions, reference numerals omitted), the outer pipe 31 is attached to the base 2 in a non-separable manner.

[0032] The first and second handrails 4, 5 are both formed in a horizontal U-shape when viewed from the side, and include vertical shaft portions 41, 51, upper horizontal shaft portions 42, 52, and lower horizontal shaft portions 43, 53.

[0033] The upper horizontal shafts 42, 52 extend perpendicularly from the upper side of the vertical shafts 41, 51. The lower horizontal shafts 43, 53 extend perpendicularly from the lower side of the vertical shafts 41, 51. The length along the axial direction of the vertical shaft 41 of the first handrail 4 is set longer than the length along the axial direction of the vertical shaft 51 of the second handrail 5.

[0034] The first and second handrails 4, 5 are attached to the support pole 3 at predetermined angular positions in the circumferential direction thereof so as to be rotatable by a predetermined angle around the central axis of the support pole 3.

[0035] Specifically, as shown in Fig. 8, the first handrail 4 is fixed at a first angular position α1 in the circumferential direction of the outer tube 31 of the support pole 3, and can be arbitrarily displaced within a range from this first angular position α1 to a second angular position α2 in the circumferential direction of the support pole 3 (for example, 45 degrees to 90 degrees) and within a range (not shown) to a position rotated 90 degrees clockwise from α1. In this embodiment, when the first angular position α1 is set to 0 degrees, the second angular position α2 is set to a position 90 degrees counterclockwise from the first angular position α1.

[0036] On the other hand, as shown in Figure 10, the second handrail 5 is positioned at the third angular position β1 in the circumferential direction of the outer tube 31 of the support 3, and then the set screw 34 (see Figure 4) is tightened to fix the inner tube 32 to the outer tube 31, thereby preventing rotation. However, if the set screw 34 is loosened to make the inner tube 32 rotatable relative to the outer tube 31, it can be displaced to any position. In this embodiment, when the third angular position β1 is set to 0 degrees, the fourth angular position β2 is set to a position 90 degrees clockwise from the third angular position β1.

[0037] The tips of the upper horizontal shafts 42, 52 of the first and second handrails 4, 5 are attached to the upper end of the inner tube 32 of the support post 3 via joints 6. The tips of the lower horizontal shafts 43, 53 of the first and second handrails 4, 5 are attached to the outer tube 31 of the support post 3 via brackets 7, 7, respectively, at a midpoint in the axial direction of the outer tube 31.

[0038] The joint 6 is used to support the first and second handrails 4, 5 on the support 3 so that they can rotate at a predetermined angle around the central axis of the support 3, and as shown in Figure 3, it is configured so that an upper member 61 and a lower member 62 are connected to each other so that they can rotate relative to each other using fastening members such as bolts 63.

[0039] The upper member 61 is configured such that a bottomed cylindrical cup 61b is integrally provided at a predetermined angular position in the circumferential direction of an upper hemispherical portion 61a. The lower member 62 is configured such that a bottomed cylindrical cup 62b is integrally provided at a predetermined angular position in the circumferential direction of a lower hemispherical portion 62a, and a connecting shaft 62c is integrally provided at the lower apex of the lower hemispherical portion 62a so as to extend downward. The upper member 61 corresponds to the support member recited in the claims, and the lower member 62 corresponds to the rotating member recited in the claims.

[0040] The bolt 63 is inserted from above into the through-hole 61c in the upper hemispherical portion 61a of the upper member 61 and screwed into the threaded hole 62d in the lower hemispherical portion 62a of the lower member 62. A decorative cover 64 is removably fitted into the upper opening of the through-hole 61c in the upper member 61. The decorative cover 64 is used to enhance the design by hiding the bolt 63.

[0041] As shown in FIG. 3, the bracket 7 is configured such that a left member 71 and a right member 72 are connected by fastening members such as a bolt 73 and a nut 74.

[0042] The left member 71 has a semi-cylindrical bar 71a with a connecting portion 71b integrally formed at one end thereof, and the right member 72 has a semi-cylindrical bar 72a with a cylindrical cup 72b with a bottom integrally formed at one end thereof.

[0043] This bracket 7 is configured to be attached to the support 3 while combining a left member 71 and a right member 72 together.

[0044] Next, an assembly example of the handrail device 1 described above will be described with reference to FIG.

[0045] For example, the joint 6 is attached to the top of the support 3, and two brackets 7 are attached to the outer tube 31 of the support 3 at positions spaced apart vertically midway along the axial direction, and the tops of the first and second handrails 4, 5 are attached to the joint 6, and the bottoms of the first and second handrails 4, 5 are attached to the brackets 7, 7.

[0046] Specifically, the upper member 61 and the lower member 62 of the joint 6 are connected with the bolt 63, and then the connecting shaft 62c of the lower member 62 is fitted into the upper opening of the inner tube 32 of the support 3. As shown in FIG. 4 , a retaining metal fitting 37 is provided at the lower end of the connecting shaft 62c, and the connecting shaft 62c of the lower member 62 is fixed to the inner tube 32 by the elastic force of the retaining metal fitting 37. The outer diameter of the lower end of the connecting shaft 62c is set smaller than the inner diameter of the inner tube 32, and the outer diameter of the retaining metal fitting 37 is set larger than the inner diameter of the inner tube 32. Alternatively, the connecting shaft 62c of the lower member 62 of the joint 6 may be fitted into the upper opening of the inner tube 32 of the support 3, and then the upper member 61 may be connected to the lower member 62 with the bolt 63.

[0047] After this, the tip of the upper horizontal shaft portion 42 of the first handrail 4 is fitted into the cup 61b of the upper member 61 and the fitted portion is fixed with a fastening member such as a flat head screw 65 (see Figure 3), and the tip of the upper horizontal shaft portion 52 of the second handrail 5 is fitted into the cup 62b of the lower member 62 and the fitted portion is fixed with a fastening member such as a flat head screw 65 (see Figure 3).

[0048] Then, the concave surfaces of the semi-cylindrical bars 71a, 72a of the left member 71 and the right member 72 are pressed against each other at positions spaced apart above and below midway along the axial direction of the outer tube 31 of the support 3, and a bolt 73 is inserted through the through hole (symbol omitted) of the semi-cylindrical bar 72a of the right member 72 so that it protrudes outward from the through hole (symbol omitted) of the semi-cylindrical bar 71a of the left member 71. A nut 74 is screwed onto the protruding portion (threaded shaft portion, symbol omitted) of the bolt 73, thereby joining the left member 71 and the right member 72 inseparably and attaching them to the support 3.

[0049] After this, the tip of the lower horizontal shaft portion 43 of the first handrail 4 and the tip of the lower horizontal shaft portion 53 of the second handrail 5 are fitted into the cups 72b of the brackets 7, 7 attached to the support 3, and then fastening members such as flat head screws 75 (see Figure 3) are inserted through the two through holes provided in the cups 72b (only one of the through holes is shown in Figure 2) and screwed into the cups 72b, thereby attaching the brackets 7 to the first and second handrails 4, 5, respectively.

[0050] Next, an example of installation of the handrail device 1 described above will be described with reference to FIGS.

[0051] As shown in FIG. 7, the handrail 1 can be installed vertically on the top surface of the lower step 81 of the staircase 8, near the front corner. For example, this installation method involves driving anchors 26 into predetermined positions on the top surface of the lower step 81, inserting bolts 25 into bolt insertion holes (see FIG. 1, reference numerals omitted) in the left member 21 and right member 22 of the base 2, and screwing the bolts 25 into the anchors 26. In this case, if the upper horizontal shaft 42 of the first handrail 4 is positioned at the angular position α1 indicated by the two-dot chain line in FIG. 8, and the central axes of the upper horizontal shaft 42 of the first handrail 4 and the upper horizontal shaft 52 of the second handrail 5 are aligned in a straight line as indicated by the two-dot chain lines in FIG. 5 and FIG. 8, the vertical shaft 41 of the first handrail 4 of the handrail device 1 may protrude outward from the riser surface of the lower step 81, as indicated by the two-dot chain line in FIG. 7.

[0052] Here, if, although not shown, the entrance to a house faces the road and a staircase 8 is installed between the entrance and the road, and the vertical axis portion 41 of the first handrail 4 protrudes outward from the riser surface of the lower step 81, as shown by the two-dot chain line in Figure 6 and the two-dot chain line in Figure 7, this is undesirable from various perspectives in terms of installing the handrail device 1.

[0053] Therefore, when the handrail device 1 is not being used by a user, for example, by rotating the upper horizontal shaft 42 of the first handrail 4 counterclockwise from the angular position α1 indicated by the two-dot chain line in FIG. 8 to the angular position α2 indicated by the solid line in FIG. 8, it becomes possible to retract the vertical shaft 41 of the first handrail 4 toward the entrance from the riser surface of the lower step 81, as shown by the solid line in FIG. 7. Note that, to rotate the first handrail 4, it is necessary to first loosen the bolt 73 of the bracket 7 for the first handrail 4, and then tighten the bolt 73 after rotating it to the desired angular position. This prevents the vertical shaft 41 of the first handrail 4 from protruding outward from the riser surface of the lower step 81, which is advantageous from various perspectives when installing the handrail device 1.

[0054] When a user leaves the entrance and descends the stairs 8, or when a user climbs the stairs 8 to enter the entrance, if the upper horizontal axis portion 42 of the first handrail 4 is positioned at the angle position α1 shown by the dotted lines in Figures 7 and 8, the vertical axis portion 41 of the first handrail 4 can be made to protrude toward the road beyond the riser surface of the lower step 81.

[0055] As a result, as shown by the dotted line in Figure 7, the upper horizontal shaft portion 42 of the first handrail 4 and the upper horizontal shaft portion 52 of the second handrail 5 are in a straight line, increasing the overall length.This makes it possible to effectively utilize the entire length of the upper horizontal shaft portions 42, 52 of the first and second handrails 4, 5 when the user goes up or down the stairs 8, and also allows the user to grab onto any position of the vertical shaft portions 41, 51 and the lower horizontal shaft portions 43, 53, thereby increasing the user's freedom in where to grab, and providing maximum assistance when going up or down the stairs.

[0056] Incidentally, when the upper horizontal shaft 42 of the first handrail 4 and the upper horizontal shaft 52 of the second handrail 5 are aligned in a straight line as shown by the dotted-dotted lines in Figures 5 and 7 and the dotted-dotted line in Figure 8, the straight-line distance from the center of the support post 3 to the tip of the upper horizontal shaft 42 of the first handrail 4 (L1 in Figure 8) is longer than the straight-line distance from the center of the support post 3 to the tip of the upper horizontal shaft 42 of the first handrail 4 when the upper horizontal shaft 42 of the first handrail 4 is rotated to the angle position α2 of the support post 3 as shown by the solid line in Figure 8 and measured parallel to the straight line (L2 in Figure 8).

[0057] That is, in the former case (see the two-dot chain line in FIG. 8), the range over which users can use the first handrail 4 as a handrail is longer than in the latter case (see the solid line in FIG. 8). On the other hand, in the latter case, the tip of the upper horizontal shaft portion 42 of the first handrail 4 does not get in the way of anything compared to the former case.

[0058] In this way, the handrail device 1 makes it possible to change the position of the upper horizontal axis portion 42 of the first handrail 4 to a state that is appropriate for when the user uses it as a handrail or when it is left unused as a handrail.

[0059] Furthermore, when the upper horizontal shaft 42 of the first handrail 4 and the upper horizontal shaft 52 of the second handrail 5 are rotated so that the angle between the upper horizontal shaft 42 and the upper horizontal shaft 52 is, for example, 90 degrees or more and less than 180 degrees, it becomes easier to firmly grasp the upper horizontal shaft 42 and the upper horizontal shaft 52 compared to when the central axes of the upper horizontal shaft 42 of the first handrail 4 and the upper horizontal shaft 52 of the second handrail 5 are arranged in a straight line, making it easier for the user to support their body, especially if they are an elderly person with little strength.

[0060] Incidentally, in the above embodiment, an example is given in which, from a state in which the central axes of the upper horizontal shaft portion 42 of the first handrail 4 and the upper horizontal shaft portion 52 of the second handrail 5 are aligned in a straight line as shown in FIG. 5, the upper horizontal shaft portion 42 of the first handrail 4 is rotated 90 degrees counterclockwise as shown in FIG. 8, or the upper horizontal shaft portion 52 of the second handrail 5 is rotated 90 degrees clockwise as shown in FIG. 10, thereby making the angle between the upper horizontal shaft portion 42 and the upper horizontal shaft portion 52 90 degrees. However, another way to use the handrail device 1 is to, for example, from a state in which the central axes of the upper horizontal shaft portion 42 of the first handrail 4 and the upper horizontal shaft portion 52 of the second handrail 5 are aligned in a straight line, as shown in Figure 5, rotate the upper horizontal shaft portion 42 of the first handrail 4 counterclockwise by 45 degrees and rotate the upper horizontal shaft portion 52 of the second handrail 5 clockwise by 45 degrees (not shown), thereby making it possible to set the angle between the upper horizontal shaft portion 42 and the upper horizontal shaft portion 52 to 90 degrees.

[0061] As described above, according to the embodiment of the present invention, the first and second handrails 4, 5 of the handrail device 1 can be rotated by a predetermined angle, thereby increasing the range in which the handrail device 1 can assist the user's walking, thereby improving the usefulness of the handrail device 1.

[0062] The present invention is not limited to the above-described embodiments, but can be modified as appropriate within the scope of the claims and the equivalents thereof.

[0063] (1) In the above embodiment, although not shown, the first and second handrails 4, 5 may be of the same size and shape, which is also included in the present invention.

[0064] (2) Although not shown in the drawings, in the above embodiment, the present invention also includes a handrail device 1 in which either the first handrail 4 or the second handrail 5 is rotatable and the other is non-rotatable.

[0065] (3) In the above embodiment, a fastening member such as a flat head screw 65 is used to secure the upper portions (upper horizontal shaft portions 42, 52) of the first and second handrails 4, 5 to the joint 6, but the means of securing the upper portions is not particularly limited. An example of a means that can be used in place of or in combination with a fastening member is an adhesive.

[0066] (4) In the above embodiment, a fastening member such as a flat head screw 75 is used to fasten the lower portions (lower horizontal shaft portions 43, 53) of the first and second handrails 4, 5 to the brackets 7, 7, but the fastening means is not particularly limited. An alternative to or a means to be used in combination with the fastening member is, for example, an adhesive.

[0067] (5) In the above embodiment, the shapes and configurations of the base 2, the joint 6, and the bracket 7 are not particularly limited.

[0068] (6) In the above embodiment, the handrail device 1 is provided with the base 2, but the present invention also includes a handrail device that does not have the base 2. Such a handrail device is installed, for example, as shown in Fig. 11, by embedding the lower part of the support post 3 from the top surface of the lower step 81 of the staircase 8, and attaching a two-piece decorative cover 9 to the outer diameter side of the support post 3 so as to hide the embedded part of the support post 3 on the top surface of the lower step 81.

[0069] (7) In the above embodiment, it is possible to fix the tip of the upper horizontal shaft 42 of the first handrail 4 to the upper end of the outer tube 31, and fix the tip of the upper horizontal shaft 52 of the second handrail 5 to the top of the inner tube 32, without using the joint 6. In this case, loosening the set screw 34 (shown in FIG. 4) and the bolt 73 of the bracket 7 makes it possible to rotate the second handrail 5 around the central axis of the support post 3.

[0070] (8) In the above embodiment, although not shown, the support 3 can be a single pipe, and the connecting shaft 62c of the lower member 62 can be fixed to the single pipe. In this case, only the first handrail 4 can rotate, and the second handrail 5 cannot.

[0071] (9) In the above embodiment, although not shown, the support 3 can be a single tube, the lower hemispherical portion 62a of the lower member 62 and the connecting shaft 62c are separated, and the connecting shaft 62c is fixed to the upper end of the single tube with a set screw 34 (see FIG. 4) or the like. Furthermore, the lower hemispherical portion 62a can be attached to the top of this connecting shaft 62c, and the upper hemispherical portion 61a of the upper member 61 can be attached to the top of the lower hemispherical portion 62a of the lower member 62 with a bolt 63 (see FIG. 3) so that they can rotate relative to each other, and the tip of the upper horizontal shaft portion 42 of the first handrail 4 can be attached to the cup 61b of the upper member 61. In this case, loosening the bolt 63 (see FIG. 3) and the bolt 73 of the bracket 7 makes it possible to rotate both the first handrail 4 and the second handrail 5 around the central axis of the support 3. [Industrial Applicability]

[0072] The present invention can be suitably used in handrail devices. [Explanation of symbols]

[0073] 1 Handrail device 2. Bass 3 pillars 31 Outer tube 32 Inner tube 4 First handrail 41 Vertical shaft 42 Upper horizontal shaft 43 Lower horizontal shaft part 5 Second handrail 51 Vertical shaft 52 Upper horizontal shaft 53 Lower horizontal shaft part 6 joints 61 Upper member 61a Upper hemisphere 61b Cup 62 Lower member 62a lower hemisphere 62b cup 62c connection shaft 63 volts 7 Bracket 8 stairs 81 Lower

Claims

1. The system comprises a support pillar installed on a floor surface in a vertical orientation, and a first handrail and a second handrail attached to two circumferential positions of the support pillar so as to extend radially outward from the support pillar, A handrail device, wherein at least one of the first handrail and the second handrail is rotatable around a central axis of the support post.

2. The handrail device according to claim 1, One end of the first handrail and one end of the second handrail are attached to the upper part of the support pole, The handrail device is characterized in that the other end of the first handrail and the other end of the second handrail are attached to the support post at a midpoint in the vertical direction.

3. The handrail device according to claim 2, A handrail device characterized in that a joint for connecting one end of the first handrail and one end of the second handrail is provided on an upper part of the support post.

4. The handrail device according to claim 3, The handrail device is characterized in that the joint comprises: a support member that is provided on the upper part of the support post and to which one end of the second handrail is fixed; and a rotating member that is provided rotatably relative to the support member and to which one end of the first handrail is fixed.

5. The handrail device according to any one of claims 2 to 4, A handrail device, characterized in that the attachment position of the other end of the first handrail to the support post is shifted lower or higher than the attachment position of the other end of the second handrail to the support post.

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