JP2020012264A - handrail - Google Patents

Abstract

To provide a handrail which is installed by taking out from a skeleton and can be surely installed even if an upper surface or a lower surface of the skeleton is inclined.SOLUTION: A handrail attached to the front side of a skeleton, comprises: a support; an upper anchor attached to an upper surface of the skeleton and a lower anchor attached to a lower surface; and an upper fixture and a lower fixture. The upper fixture and the lower fixture sandwich the skeleton from above and below, and the upper fixture is fixed to the upper anchor. The lower fixture is fixed to the lower anchor. The support is fixed to the front side of the upper fixture and the lower fixture. The upper fixture and/or the lower fixture has a planar skeleton side abutting surface abutting on the skeleton. The skeleton side abutting surface is variable in angle with respect to a horizontal plane.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a handrail installed on a veranda or the like of an apartment house.

  Some handrails are installed on the verandas or passageways of condominiums and other condominiums, and the columns are taken out of the frame and attached. For example, the one shown in Patent Document 1 sandwiches the skeleton from above and below by two upper and lower fixing portions projecting from the support column toward the skeleton side, and the upper and lower fixing portions are anchor bolts embedded in the upper and lower surfaces of the skeleton, respectively. It is fixed.

JP-A-6-336762

  By the way, in the skeleton to which such a handrail is attached, the upper surface or the lower surface may be inclined with respect to the horizontal plane. However, in the handrail of Patent Literature 1, since the surfaces of the upper and lower fixing portions that contact the skeleton are horizontal, if the upper surface or the lower surface of the skeleton is inclined, a gap is generated between the skeleton and the fixing portion. However, there was a possibility that the fixing portion could not be securely fixed to the frame.

  The present invention has been made in view of such circumstances, and has an object to provide a handrail that is taken out of a skeleton and installed, and can be securely attached even if an upper surface or a lower surface of the skeleton is inclined. I do.

  The invention according to claim 1 of the present invention relates to a handrail attached to the front side of a skeleton, a support, an upper anchor attached to an upper surface of the skeleton and a lower anchor attached to a lower surface, an upper fixture and a lower anchor. Fixture, the upper fixture and the lower fixture sandwich the frame from above and below, the upper fixture is fixed to the upper anchor, and the lower fixture is fixed to the lower anchor. The support is fixed to the front side of the upper fixture and the lower fixture, and the upper fixture and / or the lower fixture is a planar skeleton-side abutment that abuts a skeleton. And the body-side contact surface has a variable angle with respect to a horizontal plane. When only one of the upper fixture and the lower fixture has a skeleton-side abutment surface whose angle is variable with respect to the horizontal plane, the other may have a skeleton-side abutment surface whose angle is invariable.

  In the invention according to claim 2 of the present invention, the upper fixing device and / or the lower fixing device may be configured such that a holding portion positioned in a vertical direction of the skeleton and an angle positioned between the skeleton and the holding portion. It has an adjusting tool, the angle adjusting tool has the skeleton-side abutting surface, and a fixture-side abutting surface that abuts on the holding portion, and the skeleton-side abutting surface is in a horizontal plane. The fixture-side contact surface can contact the holding portion in a plurality of postures at different angles with respect to each other. When only one of the upper fixing device and the lower fixing device has the holding portion and the angle adjuster, the other may have only the holding portion.

  In the invention according to claim 3 of the present invention, the fixture-side contact surface is formed of a rotation surface having a left-right direction as an axis, and the holding portion is formed of a rotation surface that is in close contact with the fixture-side contact surface. It has a contact surface. Note that the “rotational surface with the left-right direction as an axis” is a curved surface obtained by rotating a generatrix consisting of straight lines or curves around a certain straight line oriented in the left-right direction. For example, if the generating line is a straight line parallel to the axis, the rotating surface is a cylindrical side surface, and if the generating line is an arc having the axis as the diameter, the rotating surface is a spherical surface. Also, “closely contact” means that the surfaces come into contact with no gap.

  The invention according to claim 4 of the present invention is characterized in that the upper fixture and / or the lower fixture has a column side member attached to the column and a frame side member attached to the frame, and the frame side member is , Having the body-side contact surface, and being connected to the support-side member so as to be variable in angle around a left-right axis.

  The invention according to claim 5 of the present invention is characterized in that the lower anchor is located behind the upper anchor.

  According to the first aspect of the present invention, since the angle of the skeleton-side contact surface with respect to the horizontal plane is variable, even when the upper surface and / or the lower surface of the skeleton is inclined, the skeleton-side contact surface is inclined. The gap between the skeleton side contact surface and the skeleton can be eliminated or reduced by matching the angle of the surface to the inclination, or if it is not possible, to close it, so that the skeleton and the upper fixture and / or the lower fixture Can be securely fixed.

  According to the second aspect of the present invention, the angle of the body-side contact surface can be easily adjusted only by changing the attitude of the angle adjuster with respect to the holding portion.

  According to the invention of claim 3 of the present invention, since the fixture-side contact surface of the angle adjuster and the contacted surface of the holding portion are composed of rotating surfaces that are in close contact with each other, the skeleton side of the angle adjuster. The angle of the contact surface with respect to the horizontal plane can be adjusted steplessly. Therefore, the gap between the angle adjuster and the skeleton can be eliminated regardless of the inclination angle of the upper surface and / or the lower surface of the skeleton, so that the skeleton and the upper fixture and / or the lower fixture can be more securely fixed. it can.

  According to the invention of claim 4 of the present invention, the angle of the skeleton-side contact surface can be easily adjusted only by changing the angle of the skeleton-side member with respect to the column-side member.

  According to the invention of claim 5 of the present invention, when the column receives a load in the front-rear direction, a force acts in a direction in which the column rotates about the upper anchor, and the lower anchor is used by the lower fixture. However, since the lower anchor is located behind the upper anchor, the distance from the fixing part of the lower fixture to the support column to the fixing part to the lower anchor becomes longer, and the lever The principle reduces the pull-out force acting on the lower anchor. Therefore, it is possible to withstand a larger load, and the handrail has a sufficient strength. Further, since the mounting positions of the upper anchor and the lower anchor to the skeleton are shifted back and forth, the upper anchor and the lower anchor do not interfere even when the thickness of the skeleton cannot be sufficiently ensured.

FIG. 4 is a vertical cross-sectional view (a cross-sectional view taken along line AA of FIG. 3) of the first embodiment of the handrail. FIG. 4 is a cross-sectional view (a cross-sectional view taken along line BB of FIG. 3) of the first embodiment of the handrail. It is a front view of a 1st embodiment of a handrail. It is a cross-sectional view of the corner part of the first embodiment of the handrail. It is explanatory drawing which shows the construction procedure of 1st embodiment of a handrail. (A), (b) is explanatory drawing in case the inclination of the upper surface of a skeleton differs. It is explanatory drawing when a handrail receives a load, (a) shows a 1st embodiment and (b) shows a comparative form. FIG. 11 is a longitudinal sectional view (a sectional view taken along line CC of FIG. 10) of the second embodiment of the handrail. It is a cross-sectional view (DD sectional drawing of FIG. 10) of 2nd embodiment of a handrail. It is a front view of a 2nd embodiment of a handrail. (A), (b) is a cross-sectional view of the corner part of the second embodiment of the handrail. FIG. 14 is a longitudinal sectional view (a sectional view taken along line EE of FIG. 13) of the third embodiment of the handrail. It is a front view of a 3rd embodiment of a handrail. It is a longitudinal section of a 4th embodiment of a handrail.

  Hereinafter, the specific contents of the handrail of the present invention will be described. The handrail is installed and used in various places. Here, as a first embodiment, a handrail is installed on a veranda of an apartment house for the purpose of preventing falling. In the following, the front-back direction is the direction in which the handrail is expected, and the outdoor side is the front side and the indoor side is the rear side when installed on the veranda.

  That is, this handrail is attached to the front side of the skeleton 100. Here, the frame 100 to which the handrail is attached is composed of a floor slab 101 protruding horizontally forward from the outer wall surface of the building and a rising wall 102 extending upward from the front end thereof, as shown in FIG. . The height of the rising wall 102 is approximately １ ／ of the thickness of the floor slab 101. The upper surface of the rising wall 102 is inclined rearward and downward so as to prevent rainwater from dripping downstairs, and the inclination is 4 degrees.

  First, the overall configuration of the first embodiment of the handrail will be described. As shown in FIGS. 1 to 3, the handrail includes a support 1, an upper anchor 2a and a lower anchor 2b, an upper fixture 3a and a lower fixture 3b, an upper rail 5, a lower rail 6, A vertical lattice 7 is provided, and the upper fixture 3 a has an angle adjuster 4. The columns 1 are erected on the front side of the frame 100, and the lower end thereof is below the lower surface of the floor slab 101, and a plurality of columns 1 are arranged at intervals on the left and right. The upper fixture 3a is attached to the upper surface of the skeleton 100 by the upper anchor 2a, and the lower fixture 3b is attached to the lower surface of the skeleton 100 by the lower anchor 2b. The column 1 is fixed by the fixture 3b. However, the angle adjuster 4 is provided between the upper surface of the frame 100 and the upper holding portion 31a of the upper fixture 3a. At the upper end of the column 1, an upper bar 5 extending across the columns 1 is attached. At the lower end of the column 1, a lower bar 6 extending across the plurality of columns 1 is provided. A plurality of vertical lattices 7 arranged on the left and right are attached between the adjacent columns 1 and between the upper beam 5 and the lower beam 6. Therefore, the frame 100 (the floor slab 101 and the rising wall 102) is located on the rear side of the column 1 and the vertical lattice 7 and is difficult to see from the front side, so that the design is good.

  Subsequently, each constituent member of the first embodiment of the handrail will be described. The column 1 is made of a substantially rectangular hollow extruded shape member whose cross section is long in the front-rear direction, and is erected so that its longitudinal direction is vertical. 101 and the front wall of the rising wall 102). A mounting groove 11 extending vertically is formed on the rear side surface of the column 1. The mounting groove 11 is substantially C-shaped and opens rearward.

  The upper and lower anchors 2a and 2b are embedded in the upper and lower surfaces of the frame 100, respectively. The upper anchor 2a is vertically embedded in the upper surface of the rising wall 102 of the skeleton 100, and the tip protrudes upward. The lower anchor 2b is vertically embedded in the lower surface of the floor slab 101 of the skeleton 100, and the tip protrudes downward. And the lower anchor 2b is located behind the upper anchor 2a. Regarding the positional relationship between the upper anchor 2a and the lower anchor 2b, in more detail, in the first embodiment, the length of the rising wall 102 in the front-rear direction is 100 mm, and the upper anchor 2a is located at the center in the front-rear direction, that is, the frame 100 Is provided at a position 50 mm from the front side surface of the vehicle. On the other hand, the lower anchor 2 b is provided at a position 85 mm from the front side surface of the skeleton 100.

  The upper fixing member 3a includes a substantially L-shaped metal fitting and an angle adjusting tool 4. More specifically, the substantially L-shaped metal fitting has a vertically flat upper mounting portion 32a and a rectangular flat metal fitting. An upper holding portion 31a extending rearward from the lower end of the upper mounting portion 32a, a locking piece 33a slightly projecting rearward from the upper end of the upper mounting portion 32a, and a rear end of the upper holding portion 31a It comprises a standing piece 34a projecting upward from a slightly forward position. The upper holding portion 31a has a curved portion 35a which is curved so that approximately 2/3 of the rear region is convex upward when viewed from the left and right directions. In other words, the rotation surface is a curved surface shape whose center axis coincides with a part of the side surface of a column parallel to the left-right direction, and is a contact surface 36a with which the angle adjuster 4 comes into contact. The standing piece 34a has a lower height than the upper mounting portion 32a and extends vertically. The left and right widths of the upper fixture 3a including the upper holding portion 31a, the upper attachment portion 32a, the locking piece 33a, and the standing piece 34a are longer than the left and right widths of the column 1. One bolt hole is formed in each of the upper mounting portion 32a and the upper holding portion 31a, and each of the bolt holes is located at the center in the left-right direction of each portion. Further, a screw hole is formed above the bolt hole of the upper mounting portion 32a. The periphery of the bolt hole on the upper surface of the upper holding portion 31a is a horizontal plane.

  The angle adjuster 4 is made of metal, has a substantially flat plate shape, and has a lateral width equal to the lateral width of the upper holding portion 31a. The upper surface of the angle adjuster 4 is a fixture-side abutting surface 42 that abuts on the upper holding portion 31a. The upper surface of the angle adjuster 4 is convex upward when viewed from the left and right, and matches the shape of the abutted surface 36a on the lower surface of the curved portion 35a. (A rotating surface having the left-right direction as an axis, that is, a curved surface shape whose central axis coincides with a part of a side surface of a cylinder parallel to the left-right direction). The lower surface of the angle adjuster 4 is a skeleton-side contact surface 41 that is in contact with the skeleton 100, and is a flat surface. Therefore, even if the front-rear position of the upper holding portion 31a with respect to the contact surface 36a is displaced, the angle adjuster 4 always makes the fixture-side contact surface 42 contact the contact surface 36a without any gap. When the position shifts, the attitude of the angle adjuster 4 changes, that is, the angle of the skeleton-side contact surface 41 with respect to the horizontal plane changes. Here, the skeleton-side abutting surface 41 is inclined backward and downward, has an angle of 4 degrees with respect to the horizontal plane, and abuts on the upper surface of the rising wall 102 without any gap. A long and long bolt hole 43 is formed at the center of the angle adjuster 4 in the left-right direction.

  The lower fixing member 3b is made of a substantially L-shaped metal fitting, and more specifically, a rectangular flat plate-shaped lower mounting portion 32b and a rectangular flat plate-shaped lower mounting portion 32b. It comprises a lower holding portion 31b extending toward the side. However, the lower holding portion 31b has a step portion 35b formed at the center in the front-rear direction, and the rear portion is one step higher than the front portion of the step portion 35b. The left-right width of the lower fixture 3b is longer than the left-right width of the column 1. One bolt hole is formed in each of the lower mounting portion 32b and the lower holding portion 31b (the rear portion of the stepped portion 35b). positioned.

  The upper fixture 3a and the lower fixture 3b sandwich the frame 100 from above and below. More specifically, a curved portion 35a, which is a rear portion of the upper holding portion 31a of the upper fixture 3a, is located above the rising wall 102 of the frame 100, and the rising wall 102 of the frame 100 and the curved portion of the upper holding portion 31a are curved. The angle adjuster 4 is provided between the portions 35a. That is, the upper holding portion 31a is brought into contact with the upper surface of the rising wall 102 of the skeleton 100 via the angle adjuster 4, and is inserted into the center of the bolt hole 43 of the angle adjuster 4 in the front-rear direction and the bolt hole of the upper hold portion 31a. The distal end of the upper anchor 2a is inserted, and a nut is screwed into the upper anchor 2a from above to fix the upper fixture 3a to the frame 100. Also, the lower holding portion 31b (the rear portion of the step portion 35b) of the lower fixing device 3b is brought into contact with the lower surface of the floor slab 101 of the frame 100, and the distal end of the lower anchor 2b is inserted into the bolt hole. The lower anchor 3b is fixed to the frame 100 by screwing a nut to the lower anchor 2b from below. At this time, the front surface of the upper mounting portion 32a of the upper fixing device 3a and the front surface of the lower mounting portion 32b of the lower fixing device 3b are flush with each other. In addition, the front part of the step part 35b of the lower holding part 31b of the lower fixing tool 3b is separated from the lower surface of the floor slab 101 of the skeleton 100, whereby the drainage property is improved.

  Further, the heads of two bolts are inserted into the mounting grooves 11 on the rear surface of the column 1, and the screw portions of each bolt project rearward from the column 1. Then, the rear surface of the column 1 is brought into contact with the front surface of the upper mounting portion 32a of the upper fixing device 3a and the front surface of the lower mounting portion 32b of the lower fixing device 3b, and two bolts are attached to the upper fixing device 3a. Are inserted into the bolt holes of the upper mounting portion 32a and the bolt holes of the lower mounting portion 32b of the lower fixing member 3b, respectively. The column 1 is fixed to the front side of the fixture 3b. At this time, since the bolt whose head is inserted into the mounting groove 11 can move up and down with respect to the column 1, the mounting height of the column 1 with respect to the upper fixture 3a and the lower fixture 3b can be adjusted freely. The upper fixing member 3a is further reinforced by inserting a screw into the screw hole of the upper mounting portion 32a from the rear side and screwing it to the column 1.

  In this way, the column 1 is fixed to the frame 100 via the upper fixture 3a attached to the upper anchor 2a and the lower fixture 3b attached to the lower anchor 2b. At this time, the left and right widths of the upper fixture 3a and the lower fixture 3b are both wider than the left and right width of the column 1, but the upper fixture 3a and the lower fixture 3b are located behind the column 1. Since it is hidden behind the column 1 from the front side and is not conspicuous, the design is good.

  The upper rail 5 is made up of two members, a board member 51 and a surface member 52. The perforated plate member 51 is formed of a substantially flat extruded profile, and extends left and right across the adjacent column 1. More specifically, one eyeboard member 51 straddles the two columns 1, and the left and right ends protrude outside the left and right columns 1, and these are arranged side by side and the end faces are abutted to each other so as to be continuously connected. The front and rear width is slightly longer than the front and rear width of the column 1. On an upper surface of the eye panel member 51, a claw portion 511 extending left and right along a front edge and a rear edge is formed. The claw portion 511 has a shape that tapers upward and has a barb that projects outward in the front-rear direction. Then, such a perforated plate member 51 is brought into contact with the upper end surface of each column 1 and is fixed by screws from above. The surface member 52 is formed of a substantially U-shaped extruded shape member that opens downward, and extends left and right similarly to the eye panel member 51 (the left and right lengths are not necessarily the same as the eye panel member 51). Good), the front-rear width is slightly longer than the front-rear width of the eye panel member 51. At the lower end of the front side and the rear side, a projection 521 is formed which protrudes inward and whose tip is bent upward. In addition, since the member is a member to be put on by a person, the upper surface has a rounded shape. The front and rear projections 521 of the front surface member 52 are engaged with the front and rear claws 511 of the front panel member 51, and the front panel member 51 is attached so as to cover the front panel member 51 from above. When the left and right lengths of the handrail are long, the surface member 52 is divided into a plurality of pieces, but the division position does not necessarily have to be the same as the eyeboard member 51. Then, at the division position, the surface member 52 is attached with its end faces facing each other.

  The lower crosspiece 6 is composed of two members, a board member 61 and a surface member 62. The surface member 62 is formed of a substantially U-shaped extruded shape member that opens downward, and extends left and right across the adjacent column 1. More specifically, as in the case of the panel member 51 of the upper crosspiece 5, one surface member 62 straddles the two columns 1, and the left and right ends protrude outward from the left and right columns 1, so that the left and right ends are left and right. The front and rear widths are slightly longer than the front and rear widths of the column 1. At the lower end portions of the front side surface portion and the rear side surface portion, a projection 621 that protrudes inward and whose tip is bent upward is formed. Then, such a surface member 62 is brought into contact with the lower end surface of each column 1 and is fixed by screwing from below. The perforated plate member 61 is formed of a substantially flat extruded profile, extends left and right similarly to the surface member 62 (the left and right lengths are not necessarily the same as the surface member 62), and the front-rear width is the surface member. 62 is slightly shorter than the front and rear width. On the upper surface of the eye panel member 61, a claw portion 611 extending left and right along the front edge and the rear edge is formed. The claw portion 611 has a shape that tapers upward and has a barb that protrudes outward in the front-rear direction. Then, the front and rear claws 611 of the eye panel member 61 are engaged with the front and rear protrusions 621 of the surface member 62, and are attached so as to close the opening of the surface member 62 with the eye panel member 61. In the case where the left and right lengths of the handrail are long, the eye panel member 61 is divided into a plurality of pieces, but the division position is not necessarily the same as the surface member 62. Then, at the division position, the eyeboard member 61 is attached with its end faces facing each other.

  The vertical lattice 7 is formed of a hollow extruded profile having a substantially rectangular cross section, and is erected between the upper beam 5 and the lower beam 6 so that the longitudinal direction thereof is vertical. It is in contact with the lower surface of the perforated plate member 51 and is fixed by screwing from above, and the lower end surface is in contact with the upper surface of the surface member 62 of the lower rail 6 and is fixed by screwing from below. It is. The front-rear width and the left-right width are equal to the front-rear width and the left-right width of the column 1. Therefore, when viewed from the front side, the column 1 and the vertical lattice 7 are indistinguishable, so that the design has a sense of continuity.

  A resin cover 8 is attached to the upper side of the rising wall 102 of the frame 100, and covers the upper anchor 2a and the bolt to improve the design. The cover 8 extends left and right, and has an upper surface portion 81 that extends horizontally horizontally, is bent in the middle, and is inclined downward, and a rear surface portion 82 that extends downward from the rear end of the upper surface portion 81. . However, the rear side surface portion 82 has a shape in which a lower portion protrudes one step backward from an upper portion. The front end of the upper surface 81 of the cover 8 is placed on the locking piece 33a of the upper fixing tool 3a, and the upper part of the rear side face 82 is brought into contact with the standing piece 34a of the upper fixing tool 3a from the rear. It is fixed by screwing from the rear side. A portion of the upper holding portion 31a behind the standing piece 34a is accommodated in a lower portion of the rear surface portion 82 of the cover 8. The cover 8 closes a gap between the column 1 and the skeleton 100. If there is a gap between the column 1 and the skeleton 100, the ground surface can be seen through the gap, so that the resident on the indoor side (rear side) may feel fear. However, the gap is prevented by closing the gap with the cover 8. In. Further, the cover 8 may be provided only at a portion corresponding to the column 1.

  In addition, as shown in FIG. 4, the first embodiment of the handrail may be provided at a corner portion by being bent at a right angle when viewed from above. In the corner portion, the end faces of the upper beam 5, the lower beam 6, and the cover 8 extending from the respective directions toward the corner portion are cut and butted at an angle of 45 degrees. Then, L-shaped corner fittings 63 are attached to the outer and inner peripheral sides of the corners inside the upper and lower rails 5 and 6, and are fixed by screws from the outer and inner peripheral sides of the corners, respectively. (FIG. 4 shows the lower rail 6).

Next, the construction procedure of the first embodiment of the handrail will be described with reference to FIG. Note that the circled numbers in the figure correspond to the following steps 1 to 7, respectively.
1. In the factory, the two columns 1, the panel member 51 of the upper crosspiece 5, the surface member 62 of the lower crosspiece 6, and the vertical lattice 7 are assembled to form a planar unit. At this time, two bolts are attached to the attachment groove 11 of the support 1.
2. At the site, the upper anchor 2a and the lower anchor 2b are embedded at positions corresponding to the columns 1 on the upper surface and the lower surface of the frame 100, respectively.
3. The upper fixture 3a and the lower fixture 3b are attached to the upper anchor 2a and the lower anchor 2b, respectively. As for the upper fixture 3a, first, the upper anchor 2a is inserted into the bolt hole 43 of the angle adjuster 4, the angle adjuster 4 is placed on the upper surface of the frame 100 (3 'in the figure), and then the upper clamp is carried out. The contact surface 36 a of the portion 31 a is brought into contact with the fixture-side contact surface 42 of the angle adjuster 4.
4. The bolts attached to the column 1 of the unit are fixed through the bolt holes of the upper fixture 3a and the lower fixture 3b. The upper fixture 3a is further screwed and reinforced (4 'in the figure).
5. Depending on the length of the handrail, the required number of units will be connected to the left and right.
6. The surface member 52 is attached to the face member 51 of the upper beam 5, and the face member 61 is attached to the surface member 62 of the lower beam 6.
7. The cover 8 is attached to the upper fixture 3a.
With the above, the construction of the first embodiment of the handrail is completed. In addition, the surface member 52 of the upper crosspiece 5 and the panel member 61 of the lower crosspiece 6 may be attached in advance at a factory (the above-described step 6 may be incorporated in step 1).

  According to the first embodiment of the handrail configured as described above, in the upper fixture 3a, the fixture-side contact surface 42 of the angle adjuster 4 and the contact surface 36a of the upper holding portion 31a are in close contact with each other. Since the rotating surface is formed, the angle of the skeleton-side contact surface 41 of the angle adjuster 4 with respect to the horizontal plane can be adjusted steplessly, and adjustment is easy. Therefore, the gap between the angle adjuster 4 and the skeleton 100 can be eliminated regardless of the inclination angle of the upper surface of the skeleton 100, so that the skeleton 100 and the upper fixture 3a can be more reliably fixed. More specifically, in the case shown in FIG. 1, the upper surface of the skeleton 100 (the rising wall 102) to which the handrail is attached is inclined backward and downward, and the inclination is 4 degrees. In the above, there are cases where there is a gradient and cases where there is no gradient, and there are various angles when there is a gradient. In the case shown in FIG. 1, the inclination of the upper surface of the rising wall 102 is 4 degrees. At this time, the fixture-side contact surface 42 of the angle adjuster 4 abuts on the approximate center of the abutted surface 36 a in the front-rear direction. (In this case, the upper anchor 2a penetrates through the center of the bolt hole 43 of the angle adjuster 4 in the front-rear direction), so that the inclination angle of the frame-side contact surface 41 is also 4 degrees, and the slope of the upper surface of the rising wall 102 is inclined. Was in contact with. On the other hand, FIG. 6A shows a case where the inclination of the upper surface of the rising wall 102 is 8 degrees. In this case, the fixture-side contact surface 42 of the angle adjuster 4 is brought into contact with the front-rear direction rear end of the contact surface 36a of the upper holding portion 31a (at this time, the upper anchor 2a is connected to the bolt of the angle adjuster 4). By penetrating the front end of the hole 43), the inclination angle of the skeleton-side abutting surface 41 is also 8 degrees, and the abutting surface 41 is in contact with the slope of the upper surface of the rising wall 102. FIG. 6B shows a case where the gradient of the upper surface of the rising wall 102 is 0 degree. In this case, the fixture-side contact surface 42 of the angle adjuster 4 is brought into contact with the front end in the front-rear direction of the contact surface 36a of the upper holding portion 31a (at this time, the upper anchor 2a is connected to the bolt hole of the angle adjuster 4). 43 penetrates through the rear end), the inclination angle of the frame-side contact surface 41 also becomes 0 degree, and the contact is made according to the gradient of the upper surface of the rising wall 102. In addition, since the inclination of the skeleton side contact surface 41 of the angle adjuster 4 matches the inclination of the upper surface of the rising wall 102, the load is evenly distributed over the entire contact surface, and the load does not concentrate on a part. Therefore, the load applied from the upper fixture 3a to the upper surface of the skeleton 100 is reduced, and in particular, when used as a refurbishment, the skeleton 100 can be protected even if the surface of the skeleton 100 to be attached is fragile. .

As shown in FIG. 7 (a), when the column 1 receives a load in the front-rear direction (FIG. 7 shows a case where the column 1 receives a load from the front side), the column 1 is clocked around the upper anchor 2a. A force acts in a direction to rotate around, and a pull-out force acts on the lower anchor 2b by the lower fixture 3b. At this time, since the lower anchor 2b is positioned rearward of the upper anchor 2a, the distance L ₁ from the fixed portion to the pillars of the lower fixture 3b to the fixed part relative to the lower anchor becomes longer. FIG. 7 (b) shows the lower anchor 2b at the same front and rear position as the upper anchor 2a for comparison. In this case, the distance L from the fixed portion to the support 1 to the fixed portion to the lower anchor 2b is shown. than _2, towards the distance L ₁ in the case of the first embodiment is seen longer. And since the distance from the fixing part to the support | pillar 1 to the fixing part to the lower anchor 2b is long in this way, the pull-out force which acts on the lower anchor 2b becomes small by leverage principle. Therefore, it is possible to withstand a larger load, and the handrail has a sufficient strength. When the upper anchor 2a and the lower anchor 2b are at the same front-back position, unless the thickness of the skeleton 100 is equal to or greater than the sum of the lengths of the upper anchor 2a and the lower anchor 2b, the upper anchor 2a and the lower anchor 2b become Will interfere. However, in the first embodiment, since the attachment positions of the upper anchor 2a and the lower anchor 2b to the skeleton 100 are shifted back and forth, the thickness of the skeleton 100 cannot be sufficiently secured, and the upper anchor 2a and the lower anchor 2b are not secured. Even if there is no more than the combined length, the upper anchor 2a and the lower anchor 2b do not interfere.

  Furthermore, since the left and right columns 1, the panel members 51 of the upper crossbar 5, the surface members 62 of the lower crossbars 6, and the vertical lattices 7 can be assembled in advance in a factory to form a unit, construction on site is easy and the construction period can be shortened.

  Next, a second embodiment of the handrail will be described with reference to FIGS. In the second embodiment, a glass panel 9 is attached instead of the vertical lattice 7 in the first embodiment. The glass panel 9 is fitted on the inner peripheral side of a frame formed by the upper crosspiece 5, the lower crosspiece 6, and the left and right columns 1, and the first embodiment differs from the first embodiment in that the glass panel 9 has the glass panel 9 and the column 1 , The upper cross 5 and the lower cross 6 have different shapes. Hereinafter, the description will be focused on the parts different from the first embodiment.

  The support 1 of the second embodiment is formed of a hollow extruded shape having a substantially rectangular cross section, and the front and rear widths, the left and right widths, and the mounting grooves 11 formed on the rear side surface are the same as those of the first embodiment, The rear side surface of the lower end portion faces the front side surface of the frame 100 (the floor slab 101 and the rising wall 102). A vertically extending fitting groove 12 is formed in the inner peripheral side surface of the right and left columns 1 with respect to the glass panel 9 (the right side of the left column 1 and the left side of the right column). is there. The fitting groove 12 has a substantially U shape and opens toward the inner peripheral side.

  The upper crosspiece 5 of the second embodiment is composed of two members, a perforated plate member 51 and a surface member 52, and the surface member 52 is the same as that of the first embodiment. The perforated plate member 51 is formed of a substantially flat extruded profile and extends left and right across the two columns 1, and the front-rear width is slightly longer than the front-rear width of the column 1. As in the first embodiment, a claw portion 511 extending left and right along the front edge and the rear edge is formed on the upper surface of the eye panel member 51. A fitting groove 512 extending left and right is formed on the lower surface of the eye panel member 51 at the center in the front-rear direction. The fitting groove 512 is substantially U-shaped and opens downward. Such a perforated plate member 51 is brought into contact with the upper end surface of each column 1, and is fixed by screwing from above. However, the left and right ends of the eye panel member 51 are flush with the outer peripheral side surfaces of the left and right columns 1. The front and rear projections 521 of the front surface member 52 are engaged with the front and rear claws 511 of the front panel member 51, and the front panel member 52 is attached so as to cover and hide the front panel member 51 from above.

  The lower crosspiece 6 of the second embodiment is composed of two members, a perforated plate member 61 and a surface member 62, and the perforated plate member 61 is the same as that of the first embodiment. The surface member 62 is formed of a substantially U-shaped extruded member that opens downward, and extends left and right across the two columns 1, and the front-rear width is slightly longer than the front-rear width of the column 1. As in the first embodiment, a projection 621 that protrudes inward and whose tip is bent upward is formed at the lower end of the front side surface portion and the rear side surface portion of the surface member 62. A fitting groove 622 extending left and right is formed on the upper surface of the surface member 62 at the center in the front-rear direction. The fitting groove 622 has a substantially U shape and opens upward. Such a surface member 62 is brought into contact with the lower end surface of each column 1, and is fixed by screwing from below. However, the left and right ends of the surface member 62 are flush with the outer peripheral side surfaces of the left and right columns 1. Then, the front and rear claws 611 of the eye panel member 61 are engaged with the front and rear protrusions 621 of the surface member 62, and are attached so as to close the opening of the surface member 62 with the eye panel member 61.

  The glass panel 9 is fitted on the inner peripheral side of the frame body which is formed by framing the left and right columns 1, the panel member 51 of the upper crosspiece 5, and the surface member 62 of the lower crosspiece 6 four times. The specific assembling procedure is as follows. After attaching the surface member 62 to the lower ends of the left and right columns 1, the left and right ends and the lower end of the glass panel 9 are fitted to the fitting groove 12 of the column 1 and the fitting groove 622 of the surface member 62. Then, the eye panel member 51 is attached to the upper ends of the left and right columns 1, and the upper end of the glass panel 9 is fitted into the fitting groove 512 of the eye panel member 51. At the time of construction, the frame in which one glass panel 9 is fitted as described above is formed as one unit, and a plurality of the frames are mounted on the left and right. As for adjacent units, the columns 1 are provided close to each other (the interval between the columns 1 is equal to the left and right width of the column 1), and as shown in FIG. 9, one upper fixture 3a and one lower fixture are provided. Two columns 1 are fixed to 3b. Then, the surface member 52 of the upper crosspiece 5 is attached across adjacent units.

  In addition, as shown in FIG. 11A, the second embodiment of the handrail can be bent at a right angle when viewed from above and provided at a corner. In the corner portion, similarly to the first embodiment, the end faces of the upper crosspiece 5, the lower crosspiece 6, and the cover 8 extending from the respective directions toward the corner portion are cut at a 45-degree angle and joined to form an L-shape. It is fixed by a corner fitting 63 (FIG. 11 shows the lower rail 6). Then, in the corner portion, the end of the glass panel 9 is held by two vertical bars 91 which are not fixed to the frame 100 instead of the support pillar 1. The vertical bar 91 includes a base material 911 having a substantially L-shaped cross section facing the end surface of the glass panel 9 and the outer surface of the corner portion, and a beveling member 912 facing the inner surface of the glass panel 9. Further, as shown in FIG. 11 (b), the two substrates 911 in FIG. 11 (a) were integrally formed into one substrate 911a, and two ridges 912 were attached to this. The vertical rail 91a may be used.

  The second embodiment of the handrail configured as described above has the same operation and effect as the first embodiment. Further, a glass panel 9 is attached in place of the vertical lattice 7 of the first embodiment. However, similarly to the first embodiment, the left and right columns 1, the panel member 51 of the upper rail 5, and the lower rail 6 Since the surface member 62 and the glass panel 9 can be assembled into a unit in a factory in advance, construction on site is easy and the construction period can be shortened.

  Next, a third embodiment of the handrail will be described with reference to FIGS. The third embodiment includes a glass panel 9 as in the second embodiment, but differs from the second embodiment in the shapes of the upper bar 5 and the lower bar 6. Hereinafter, the description will be focused on the parts different from the second embodiment.

  The upper crosspiece 5 of the third embodiment is made up of two members, a perforated plate member 51 and a surface member 52, and the perforated plate member 51 is the same as that of the second embodiment. The shape of the upper surface of the surface member 52 is different from that of the second embodiment, and the upper surface is planar and inclined backward and downward.

  The lower crosspiece 6 of the third embodiment is formed of a substantially U-shaped extruded shape member that opens downward, extends left and right between the adjacent columns 1, and has end faces that contact the left and right sides of the column 1. I have. The front-rear width is shorter than the front-rear width of the column 1. A fitting groove 622 extending left and right is formed on the upper surface at the center in the front-rear direction. The fitting groove 622 has a substantially U shape and opens upward. At a position slightly above the upper end of the rising wall 102 on the left and right side surfaces of the support 1, a substantially U-shaped locking member 64 is fixed by screwing (a direction extending left and right and opening upward), and The upper end of the fitting groove 622 is fitted into a substantially U-shaped locking member 64 attached to the left and right columns 1 from above, and the lower rail 6 is locked to the locking member 64.

  Then, the glass panel 9 is fitted into the inner peripheral side of the frame formed by forming the left and right columns 1, the crosspiece member 51 of the upper crosspiece 5, and the lower crosspiece 6 into four frames. At the lower end of the column 1, a flat cover 13 having the same shape as the cross section of the column 1 is attached, and the opening is closed. The specific assembling procedure is as follows. After attaching the lower beam 6 between the right and left columns 1, the left and right ends and the lower end of the glass panel 9 are fitted into the fitting groove 12 of the column 1 and the fitting groove 622 of the lower beam 6. Then, the eye panel member 51 is attached to the upper ends of the left and right columns 1, and the upper end of the glass panel 9 is fitted into the fitting groove 512 of the eye panel member 51. At the time of construction, as in the second embodiment, the frame body in which one glass panel 9 is fitted as described above is formed as one unit, and a plurality of the frames are mounted on the left and right.

  The third embodiment of the handrail configured as described above also has the same operation and effect as the second embodiment. Further, similarly to the second embodiment, since the left and right columns 1, the panel member 51 of the upper beam 5, the lower beam 6, and the glass panel 9 can be assembled in advance in a factory to form a unit, the construction on site is easy and the construction period is short. Can be shortened.

  In the first to third embodiments, the lower fixture may have an angle adjuster. Further, the angle adjuster may be capable of adjusting the angle stepwise with respect to the holding portion of the upper fixture and / or the lower fixture. For example, the fixture-side contact surface of the angle adjuster has a shape formed of a plurality of side surfaces of a regular prism having a central axis parallel to the left-right direction. At this time, the contact surface of the holding portion also includes a plurality of side surfaces of the same regular prism, and the plurality of fixing-device-side contact surfaces of the angle adjuster abut without any gap. Even in this case, since the angle of the skeleton-side contact surface of the angle adjuster with respect to the horizontal plane is variable, even when the upper surface and / or the lower surface of the skeleton is inclined, the angle of the skeleton-side contact surface is inclined. The angle between the angle adjuster and the skeleton can be eliminated or reduced by adjusting the angle to a close angle if it is not possible, so that the skeleton and the upper fixture and / or the lower fixture can be securely fixed. it can. Further, the angle of the angle adjuster with respect to the holding portion is easily determined, and the angle is not deviated from the once set angle, so that the frame and the upper and / or lower fixtures can be more reliably fixed.

  Next, a fourth embodiment of the handrail will be described with reference to FIG. The fourth embodiment is different from the first embodiment in the shapes of the upper fixture 3a and the lower fixture 3b, and the shapes of the support 1, the upper bar 5, the lower bar 6, and the vertical lattice 7 are different. Is the same. Hereinafter, the description will be focused on the parts different from the first embodiment.

  The upper fixture 3a of the fourth embodiment is composed of two metal fittings: a column-side member 37 attached to the column 1 and a frame-side member 38 attached to the frame 100. The support-side member 37 has a rectangular flat plate-shaped upper mounting portion 32a that is vertically oriented, and a lower end portion of the upper mounting portion 32a is bent rearward and downward. A shaft portion 371 is formed. Also, the first locking piece 331a protruding rearward from the upper end of the upper mounting portion 32a, and the first locking piece 331a protruding rearward from slightly lower than the upper end of the upper mounting portion 32a. It has a second locking piece 332a forming a gap therebetween, and a lower surface of the first locking piece 331a is formed with a substantially C-shaped cross-section opening downward. A beat 333 is attached to this groove. Further, the column side member 37 is a through member extending over the entire left and right length of the handrail, and at a position of the upper mounting portion 32a between the shaft portion 371 and the second locking piece 332a and corresponding to each column 1, Bolt holes are formed. On the other hand, the skeleton side member 38 has an upper holding portion 31 a extending in the front and rear direction in a rectangular flat plate shape, and a lower surface of the upper holding portion 31 a is a planar skeleton side contact surface 41 which comes into contact with the skeleton 100. The front end of the upper holding portion 31a is bent upward at the front side, and a bearing 381 having a C-shaped cross section extending left and right is formed at the front end. Furthermore, it has a standing piece 34a that protrudes upward from the rear end of the upper holding portion 31a, and the standing piece 34a is curved so that the upper part is convex rearward when viewed from the left and right directions. are doing. The skeleton side member 38 is provided at a position corresponding to each of the columns 1, and has a left-right width longer than the left-right width of the column 1. A hole is formed. The shaft portion 371 of the column-side member 37 is rotatably fitted to the bearing portion 381 of the frame-side member 38, and the frame-side member 38 rotates around the left-right axis with respect to the column-side member 37. It is connected to change the angle.

  The lower fixing member 3b of the fourth embodiment is formed of a substantially L-shaped metal fitting, and has a rectangular flat plate-shaped lower mounting portion 32b and a rectangular flat plate-shaped lower mounting portion 32b. It comprises a lower holding portion 31b extending toward the rear side, and a hanging piece 34b extending downward from the rear end of the lower holding portion 31b in a rectangular plate shape. The lower mounting portion 32b is longer than the hanging piece 34b. Further, a protruding piece 331b that extends rearward and bends and extends downward is formed on the rear side surface of the lower end portion of the lower mounting portion 32b. A substantially triangular cross section is formed on the front side surface of the lower end portion of the protruding piece 331b. The claw portion is formed. Further, a protruding piece 332b that extends forward and bends and extends downward is formed on the front side surface of the lower end portion of the hanging piece 34b, and a claw portion having a substantially triangular cross section is formed on the rear side surface of the lower end portion of the protruding piece 332b. Is formed. The lower fixture 3b is provided at a position corresponding to each of the columns 1, and has a lateral width longer than the lateral width of the column 1. One bolt hole is formed in each of the lower mounting portion 32b and the lower holding portion 31b, and each of the bolt holes is located at the center in the left-right direction of each portion.

  The upper fixture 3a and the lower fixture 3b sandwich the frame 100 from above and below. More specifically, the rear side portion of the upper holding portion 31 a of the frame-side member 38 of the upper fixture 3 a is located above the rising wall 102 of the frame 100. However, the upper surface of the rising wall 102 is inclined backward and downward, and the inclination is 8 degrees. Therefore, the skeleton side member 38 is tilted so that the inclination angle of the lower surface of the skeleton side member 38 with respect to the horizontal direction of the skeleton side contact surface 41 is also 8 degrees, and the skeleton side contact surface 41 is raised to the rising wall 102 of the skeleton 100. The upper end of the upper anchor 2a is inserted into the bolt hole, a nut is screwed into the upper anchor 2a from above, and the skeleton side member 38 of the upper fixture 3a is fixed to the skeleton 100. It is. The upper anchor 2a is provided in accordance with the inclination of the upper surface of the rising wall 102. Also, the lower holding portion 31b of the lower fixture 3b is brought into contact with the lower surface of the floor slab 101 of the frame 100, and the tip of the lower anchor 2b is inserted into the bolt hole. The lower fixture 3b is fixed to the frame 100 by screwing a nut from the side.

  Further, the heads of two bolts are inserted into the mounting grooves 11 on the rear surface of the column 1, and the screw portions of each bolt project rearward from the column 1. Then, the rear side surface of the column 1 is brought into contact with the front side surface of the upper mounting portion 32a of the column side member 37 of the upper fixing device 3a and the front side surface of the lower mounting portion 32b of the lower fixing device 3b. Here, in the upper fixing member 3a, the column side member 37 is rotated around the left-right axis with respect to the frame side member 38 fixed to the frame 100, and the front side surface of the upper mounting portion 32a of the column side member 37 is vertically Orientation is such that it is flush with the front side surface of the lower mounting portion 32b of the lower fixture 3b. Then, two bolts are inserted into the bolt holes of the upper mounting portion 32a of the column side member 37 of the upper fixing device 3a and the bolt holes of the lower mounting portion 32b of the lower fixing device 3b, respectively. The column 1 is fixed to the front side of the upper fixture 3a and the lower fixture 3b by screwing a nut from the side. At this time, since the bolt whose head is inserted into the mounting groove 11 can move up and down with respect to the column 1, the mounting height of the column 1 with respect to the upper fixture 3a and the lower fixture 3b can be adjusted freely.

  In this way, the column 1 is fixed to the frame 100 via the upper fixture 3a attached to the upper anchor 2a and the lower fixture 3b attached to the lower anchor 2b. At this time, as shown by an arc-shaped arrow in FIG. 14, the angle of the upper surface of the skeleton 100 is different because the angle of the skeleton side member 38 is variable about the left-right axis with respect to the column side member 37. However, after making the angle of the skeleton-side contact surface 41 of the skeleton-side member 38 coincide with the gradient, the front side surface of the upper mounting portion 32a of the column-side member 37 is vertically oriented, and the column 1 is vertically oriented. Can be attached.

  An upper cover 8a made of resin is attached to the upper side of the upper fixture 3a, and covers the upper anchor 2a and the bolt to improve the design. The upper cover 8a extends left and right, and has an upper surface portion 81a extending rearward and downward, and a rear side surface portion 82a extending downward from the rear end of the upper surface portion 81a. The front end of the upper surface 81 of the upper cover 8a is inserted between the beat 333 attached to the first locking piece 331a of the column side member 37 and the second locking piece 332a. The standing piece 34a of the skeleton side member 38 is abutted from the rear side, and is fixed by screwing from the rear side. The inclination angle of the frame-side member 38 of the upper fixture 3a changes according to the gradient of the upper surface of the frame 100, and accordingly, the mounting angle of the upper cover 8a with respect to the upper fixture 3a also changes. However, since the front end of the upper surface portion 81a is only inserted between the beat 333 attached to the first locking piece 331a of the column side member 37 and the second locking piece 332a, the front end portion can freely change in angle. Can respond to. Further, since the rear side surface portion 82a is curved such that the standing piece 34a of the skeleton side member 38 is convex toward the rear side, the standing piece 34a is always kept even if the inclination angle of the skeleton side member 38 changes. Abuts the rear end of the rear side. Note that the upper cover 8a may extend over the entire left and right length of the handrail, or may be provided only at a portion corresponding to the support column 1. When the upper cover 8a is provided only at a portion corresponding to the column 1, a cover member that covers and covers the column side member 37 may be separately attached to other portions.

  Further, a lower cover 8b made of resin is attached to the lower side of the lower fixture 3b, and covers the lower anchor 2b and the bolt to improve the design. The lower cover 8b extends right and left, and includes a lower surface portion 81b extending upward and rearward, a rear surface portion 82b extending upward from the rear end of the lower surface portion 81b, and a front surface extending upward from the front end of the lower surface portion 81b. It has a portion 83b, and a claw portion having a substantially triangular cross section is formed on the front side surface at the upper end of the rear side surface portion 82b and on the rear side surface of the upper end portion of the front side surface portion 83b. The front side 83b of the lower cover 8b is inserted into the gap between the lower mounting portion 32b of the lower fixture 3b and the protruding piece 331b, and the claw of the protruding piece 331b and the front side 83b are inserted. Are locked. Also, a rear side surface portion 82b of the lower cover 8b is inserted into a gap between the hanging piece 34b of the lower fixture 3b and the projecting piece 332b, and a claw portion of the projecting piece 332b and a claw of the rear side portion 82b are inserted. The part is locked. In addition, the lower cover 8b may extend over the entire left and right length of the handrail, or may be provided only at a portion corresponding to the support column 1.

  The fourth embodiment of the handrail configured in this manner is capable of changing the angle of the upper fixing member 3a with respect to the horizontal plane of the skeleton-side abutting surface 41 of the skeleton-side member 38, so that the upper surface of the skeleton 100 is inclined. Even so, the gap between the skeleton-side contact surface 41 and the skeleton 100 can be eliminated by matching the angle of the skeleton-side contact surface 41 with the inclination, so that the skeleton 100 and the upper fixture 3a are securely fixed. be able to. The angle of the frame-side contact surface 41 can be easily adjusted only by changing the angle of the frame-side member 38 with respect to the column-side member 37.

  In the fourth embodiment, the lower fixing device may be composed of a column-side member and a skeleton-side member. Further, the support side member may be formed integrally with the support. Further, the frame-side member may be capable of adjusting the angle of the support-side member stepwise. For example, the shaft portion of the support-side member has a shape formed by a plurality of side surfaces of a regular prism whose central axis is parallel to the left-right direction. At this time, the bearing portion of the frame-side member also includes a plurality of side surfaces of the same regular prism, and the plurality of surfaces of the shaft portion of the column-side member abut without any gap. Even in this case, since the angle of the skeleton side contact surface with respect to the horizontal plane of the skeleton side member is variable, even when the upper surface and / or lower surface of the skeleton is inclined, the angle of the skeleton side contact surface is inclined. The gap between the skeleton side member and the skeleton can be eliminated or reduced by adjusting the angle to a close angle if it is not possible, so that the skeleton and the upper fixture and / or the lower fixture can be securely fixed. it can. In addition, the angle of the frame-side member with respect to the column-side member is easily determined, and does not deviate from the once set angle, so that the frame and the upper fixture and / or the lower fixture can be more reliably fixed.

  The present invention is not limited to the above embodiment. For example, the shapes of the upper fixing device and the lower fixing device may be any shapes as long as the above requirements are satisfied. In addition, the configuration of the portion between the upper crosspiece and the lower crosspiece may be provided with a horizontal grid or a louver grid, in addition to the configuration in which the vertical grid or the glass panel is provided, and may be freely set in consideration of designability and the like. .

DESCRIPTION OF SYMBOLS 1 Prop 2a Upper anchor 2b Lower anchor 3a Upper fixture 3b Lower fixture 4 Angle adjuster 31a Upper clamping part (clamping part)
36a contact surface 37 support side member 38 skeleton side member 41 skeleton side contact surface 42 fixture side contact surface 100 skeleton

Claims (5)

A railing attached to the front side of the building,
Prop, comprising an upper anchor attached to the upper surface of the skeleton and a lower anchor attached to the lower surface, an upper fixture and a lower fixture,
The upper fixing device and the lower fixing device sandwich the skeleton from above and below, the upper fixing device is fixed to the upper anchor, and the lower fixing device is fixed to the lower anchor, The post is fixed to the front side of the upper fixture and the lower fixture,
The upper fixing device and / or the lower fixing device has a planar skeleton-side abutting surface that abuts on a skeleton, and the skeleton-side abutting surface has a variable angle with respect to a horizontal plane. And handrail. The upper fixing device and / or the lower fixing device include a holding portion positioned in a vertical direction of the skeleton, and an angle adjuster positioned between the skeleton and the holding portion,
The angle adjuster has the skeleton-side abutment surface and a fixture-side abutment surface that abuts on the holding portion, and the plurality of skeleton-side abutment surfaces have different angles with respect to a horizontal plane. The handrail according to claim 1, wherein the fixture-side contact surface is capable of contacting the holding portion in the posture. The fixture-side abutment surface is formed of a rotation surface having a left-right direction as an axis,
3. The handrail according to claim 2, wherein the holding portion has a contact surface formed of a rotating surface that is in close contact with the fixing-device-side contact surface. 4. The upper fixture and / or the lower fixture has a column member attached to the column, and a frame member attached to the frame.
2. The handrail according to claim 1, wherein the frame-side member has the frame-side contact surface, and is connected to the support-side member at an angle around a left-right axis. 3. The handrail according to claim 1, 2, 3, or 4, wherein the lower anchor is located rearward of the upper anchor.

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