JPH076362U - Handrail unit - Google Patents

Abstract

(57) [Abstract] [Purpose] To obtain a handrail unit that can secure a predetermined strength even when installed in an old building and a lower chord member of a handrail that is easy to assemble and adjust and has an excellent design. [Structure] Floors 1 are placed above and below the upright 6, 6a standing upright at equal intervals.
And the ceiling 2 respectively, the lower chord member 7 and the head tree 8 are fixed between the uprights 6 and 6a, and a plurality of vertical rails 9 are attached between the lower chord member 7 and the head tree 8 to attach the handrail 5. The horizontal load applied to the headstock 8 is supported by the fixing portions of the uprights 6, 6a and the floor 1 and the ceiling 2.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention is used, for example, for a handrail unit and a handrail unit when replacing the handrail made of aluminum with a handrail made of an aluminum alloy, because the strength of the handrail made of iron deteriorates due to corrosion etc. and becomes dangerous. It relates to lower chord material.

[0002]

[Prior art]

 For example, corridors and rooftops of schools, hospitals, apartments, etc. are often provided with iron handrails, but these handrails are exposed to rain and snow, and therefore cannot be rusted by long-term use. May occur and cause corrosion, resulting in reduced strength and a safety problem. In such a case, the iron handrail is often removed and replaced with an aluminum alloy handrail having excellent rain and snow resistance.

[0003]

[Problems to be solved by the device]

 In general, buildings where the handrails are replaced are often 20 to 30 years old after construction, and the concrete strength of the skeleton has been reduced. With a supporting method in which the entire railing is supported on the floor, the required strength as a handrail cannot be secured.

The present invention has been made to solve the above problems, and a handrail unit that can secure a certain strength even when installed in an old building and an assembly adjustment are convenient and excellent in design. The purpose is to obtain a handrail unit using lower chord material.

[0005]

[Means for Solving the Problems]

 The handrail unit according to the present invention is used for replacing an old handrail with a new handrail, and fixing the upper and lower sides of the uprights standing at equal intervals to the floor and the ceiling, respectively. The lower chord material and the headboard are fixed, and a plurality of vertical rails are attached between the lower chord material and the headboard to form a handrail, and the horizontal load applied to the headboard is fixed to the upright, floor and ceiling. It is designed to be supported by the department.

In the above handrail unit, a U-shaped fixing member including a bottom piece having a loose hole and a vertical piece having a screw hole, and a bottom portion of the lower chord member having a screw insertion hole are fitted. An L-shaped support member composed of a horizontal piece and a vertical piece having a loose hole, wherein the fixing member is fixed to a floor, the lower part of the upright is fitted into the fixing member, and the supporting members are provided on both side walls thereof. The vertical piece is fixed, and the bottom of the lower chord member is fitted and fixed to the horizontal piece.

[0007] Furthermore, a lower wall having a groove in the central portion in the longitudinal direction and having a reinforcing frame having a U-shaped cross section formed inside the groove, the lower end portion extending below the lower wall, A side wall having a locking portion, and a reinforcing wall having a U-shaped cross section formed inside the groove and having a groove in the longitudinal direction, and an upper wall bridged between the upper portions of the side walls. The lower chord member is composed of a frame member having a substantially rectangular cross section and a decorative frame having a substantially U-shaped cross section having a locking claw for locking the locking portion of the frame member at the free end of the side wall.

[0008]

[Action]

 Stands are set up at equal intervals, and the upper and lower sides are fixed to the ceiling and floor of the building respectively, and lower chords and headlines are fixed between the adjacent sides, and a plurality of vertical bars are placed between these lower chords and headlines. Install. As a result, the horizontal load applied to the headstock is supported by the four fixed parts of the vertical and floor and ceiling. In addition, insert the head of the bolt into the reinforcing frame of the lower chord member so that the leg protrudes from the groove and fix other members.

[0009]

【Example】

 The inventors of the present invention have conducted various researches on measures for solving the above problems, and as a result, as shown in FIG. 6a are erected at a predetermined interval, the lower chord member 7 and the head tree 8 are fixed between the uprights 6 and 6a, and a plurality of vertical bars 9 are arranged between them to form the handrail 5. It was found that the load applied to the building frame can be reduced by supporting the horizontal load applied to the headstock 8 at the four positions of the vertical 6, 6a and the floor 1 and the ceiling 2. The present invention relates to a handrail unit as described above, a lower chord member for the handrail unit, and a fixing means for fixing the upright and the floor.

FIG. 2 and FIG. 3 show an embodiment of a portion A in FIG. 1, that is, a structure in which the floor 1 of the building frame and the lower parts of the uprights 6, 6a and the uprights 6, 6a and the lower chord member 7 are connected. Is.

In both figures, 1 is a floor of a building frame, and 6 is a shape of an aluminum alloy, and is a rectangular cross section having a hollow shape. Reference numeral 7 is a hollow aluminum lower chord member having a substantially rectangular cross section, and a groove 27 is provided in the central portion of the lower wall 71 over the entire length as shown in FIG. A U-shaped reinforcing frame 73 having a width slightly wider than the groove 72 is formed inside the. Further, the lower portions of both side walls 74, 74a extend below the lower wall 71, and the upper portions thereof extend obliquely inward after locking portions 75, 75a are formed on the outside. Reference numeral 76 is an upper wall bridging between the side walls 74 and 74a above the locking portions 75 and 75a. A groove 77 is formed in the central portion over the entire length in the longitudinal direction. Is provided with a U-shaped reinforcing frame 78 having a width slightly wider than that of the groove 77, and the frame member 7a is constituted by these.

Reference numeral 79 is a frame made of an aluminum alloy and has a U-shaped cross-section with a width substantially equal to that of the frame member 7a. Inside the free ends of both side walls, the locking portions 75, 75a of the frame member 7a are provided. Locking claws 80, 80a for locking are provided. Reference numeral 81 is a screw insertion hole formed through the upper wall at an appropriate interval.

2 and 3, 10 is a U-shaped fixing member made of metal or synthetic resin, and the width W ₁ between the vertical pieces 102 and 102a is the inner width W of the vertical 6 on the minor axis side. Are formed substantially equal to each other and are provided with screw holes 104, respectively, and a bottom portion 101 is provided with a loose hole 103 extending in the width direction. Reference numerals 11 and 11a denote L-shaped support members made of metal or synthetic resin. Horizontal pieces 111 and 111a are provided with screw insertion holes 113, and vertical pieces 112 and 112a are provided with loose holes 114 that are long in the vertical direction. It is installed throughout.

FIG. 5 and FIG. 6 show an embodiment of the portion B in FIG. 1, that is, the connecting structure of the uprights 6, 6a and the ceiling 2. Reference numeral 15 is a bracket composed of a horizontal piece 151 and vertical pieces 152 and 152a hanging on both sides of the horizontal piece 151 at intervals matching the width of the short diameter side of the vertical 6, and the horizontal piece 151 and the vertical pieces 152 and 152a respectively include Loose holes 153, 153a, 154, 154a are provided. 62 is a screw insertion hole provided in the upper part of the upright 6. The bracket for fixing the upright 6 to the ceiling 2 is not limited to the structure described above, and for example, the vertical piece of two L-shaped brackets consisting of a horizontal piece and a vertical piece is set upright. 6 can be fixed to both side walls, and horizontal pieces of both brackets can be overlapped and fixed to the ceiling 2 to make appropriate changes.

FIG. 7 and FIG. 8 show an example of a connecting structure of the portion C in FIG. 1, that is, the floor 1, the lower chord member 7 and the vertical rail 9. The same parts as those shown in FIGS. 1 to 4 are designated by the same reference numerals, and the description thereof will be omitted. Reference numeral 12 is a substantially L-shaped first bracket made of metal or synthetic resin. Loose holes 123 and 124 are provided in the horizontal piece 121 and the vertical piece 122, respectively, and on both sides of the vertical piece 122. The arms 125 and 125a are provided in a protruding manner. Reference numeral 13 is a second bracket made of metal or synthetic resin. The horizontal piece 131 has a screw insertion hole 133, and the vertical piece 132 has a loose hole 134.

FIG. 9 and FIG. 10 show an embodiment of the portion D in FIG. 1, that is, the connecting structure of the uprights 6, 6a with the head tree 8 and the vertical rail 9. Reference numeral 8 is a head tree, and a groove 83 is provided in the central portion of the lower wall 82 over the entire length in the length direction. Inside the groove 83, a U-shaped reinforcing frame having a width slightly wider than the groove 83 is provided. 84 is formed. Further, the lower portions of the side walls 85 and 85a extend below the lower wall 82, and the upper end portions are connected to the arc-shaped upper wall 86. The width of the head 8 is formed to be substantially equal to the width of the vertical 6 on the major axis side. The cross-sectional shape of the headstock 8 is not limited to the above-mentioned shape, but can be changed as appropriate.

Reference numeral 14 denotes an L-shaped bracket made of metal or synthetic resin. Loose holes 143 and 144 are formed in the horizontal piece 141 and the vertical piece 142, respectively. Reference numeral 16 is a mounting plate of the vertical rail 9 made of metal or synthetic resin.

Next, an example of the construction order of the repair handrail unit using the above-described members will be described. First, as shown in FIGS. 2 and 3, the anchor bolt 22 is screwed into the hole-in anchor 21 embedded in the floor 1, and the loose hole 103 of the fixing member 10 is fitted into the anchor bolt 22 to insert the nut 23. Fix with. Then, the hollow portion of the upright 6 is inserted into both the vertical pieces 102, 102a of the fixing member 10 and the lower end portion thereof is brought into contact with the floor 1. At this time, when the floor 1 is not horizontal, a spacer or the like is inserted between the floor 1 and the lower end of the upright 6 to vertically set up the upright 6.

Next, as shown in FIGS. 5 and 6, the bolt 24 is inserted into the loose holes 153 and 153 a provided in the horizontal piece 151 of the bracket 15 and screwed into the hole in anchor 21 embedded in the ceiling 2. Temporarily fix it. Then, the upper portion of the upright 6 is inserted between the vertical pieces 152 and 152a of the bracket 15, and the bolts 24 are inserted into the loose holes 154 and 154a of the vertical pieces 152 and 152a and the screw insertion holes 62 of the upright 6 to form a bag. Temporarily fix with the nut 25. In this state, the upright 6 is positioned vertically, and the bolt 24 and the cap nut 25 are tightened and fixed.

Next, as shown in FIGS. 2 and 3, the vertical pieces 112 and 112a of the supporting members 11 and 11a are brought into contact with both side walls of the upright 6, and the loose holes 114 are inserted into the insertion holes 61 of the upright 6. The bolt 24 is inserted and screwed into the screw hole 104 of the fixing member 10 to be fixed. At this time, the fixing position is adjusted by the loose hole 114 so that the horizontal pieces 111 of both the supporting members 11 and 11a are on the same horizontal plane.

Next, the heads of the plurality of bolts 24 are respectively inserted from the ends of the frame member 7 into the reinforcing frames 73 and 78, and the threaded portions thereof are projected from the grooves 72 and 77. Is fitted to the horizontal piece 111 of the support member 11, the bolt 24 is inserted into the screw insertion hole 113, and the nut 23 is tightened and fixed. Then, a decorative frame 79 having vertical bars 9 screwed on the upper surface at predetermined intervals is brought into contact with the upper portion of the frame member 7, the screw insertion hole 81 is inserted into the bolt 24, and the locking claws 80, 80a are attached. The both are coupled by being locked to the locking portions 75 and 75a, and the cap nut 25 is screwed into the bolt 24 and fixed.

Next, as shown in FIGS. 7 and 8, the bolt 24 inserted into the loose hole 123 of the first bracket 12 is embedded in the floor 1 at least at one place between the uprights 6 and 6a. The hole-in anchor 21 is screwed in and fixed. At this time, when the floor 1 is not horizontal, the horizontal piece 121 of the first bracket 12 is bent and the vertical piece 122 is held vertically. Then, the vertical piece 132 of the second bracket 13 is inserted between the both arm portions 125 and 125a of the first bracket 12, and the horizontal piece 131 is fitted to the lower part of the lower chord member 7 so that it is inserted into the reinforcing frame 73. The inserted bolt 24 is inserted into the screw insertion hole 133 and fixed with the nut 23. Then, the bolts 24 are inserted into the loose holes 124 and 134 of the first and second brackets 12 and 13 to adjust the height, and fixed with the nuts 23.

Finally, as shown in FIGS. 9 and 10, the vertical piece 142 is mounted on the horizontal piece 141 of the bracket 14, which is fixed to the side wall of the upright 6, on the upper end of the vertical bar 9 with a screw. Both ends of the plate 16 are placed, and the lower part of the head tree 8 is fitted to the mounting plate 15 and the horizontal piece 141 of the bracket 14. Then, the screw portion of the bolt 24 arranged in the reinforcing frame 84 is inserted through the screw insertion holes of the horizontal piece 141 and the mounting plate 16 and fixed by the nut 23. Reinforcing plates may be abutted between the side walls 85 and 85a of the headstock 8 and the upright 6, and both the reinforcing plates, the upright 6 and the headboard 8 may be integrally fixed by bolts and nuts for reinforcement. Good.

As described above, the handrail 5 is attached to the building frame, and the horizontal load applied to the headstock 8 is firmly supported by the four fixed portions of the uprights 6, 6a and the floor 1 and the ceiling 2. It should be noted that the above-described assembly order is one example, and can be appropriately changed depending on the situation of the site.

[0025]

[Effect of device]

 As described above in detail, the handrail unit according to the present invention has a plurality of uprights fixed to the floor and the ceiling respectively, and a lower chord member and a headliner are fixed between the verticals so that the vertical direction is maintained between them. Since the rails are constructed by attaching the crosspieces and the horizontal load applied to the headstock is supported by the four fixed parts of the upright, floor and ceiling, it has excellent three-dimensional strength and its appearance is excellent. You can get a safer handrail.

Further, since the upright is fixed to the floor by the U-shaped fixing member, and the lower chord member is fixed upright by the supporting member having the loose hole, the construction is easy. The standing can be firmly fixed to the floor. Further, since the lower chord member is configured by the frame member on which the bolts can be arranged vertically and the decorative frame attached to the frame member, it is possible to obtain the lower chord member which is excellent in design and easy to install.

[Brief description of drawings]

FIG. 1 is a front view schematically showing an embodiment of the present invention.

FIG. 2 is a front view of a portion A of FIG.

FIG. 3 is a side view of FIG.

FIG. 4 is an exploded perspective view of a lower chord member.

5 is a front view of a B part in FIG. 1. FIG.

FIG. 6 is an exploded perspective view of FIG.

FIG. 7 is a front view of a C portion of FIG.

FIG. 8 is a side view of FIG. 7.

FIG. 9 is a front view of a portion D in FIG.

FIG. 10 is a side view of FIG. 9.

[Explanation of symbols]

 1 floor 2 ceiling 5 handrail 6, 6a cubic 7 lower chord material 7a frame material 79 decorative frame 8 Kasaki 9 vertical rail 10 fixing member 11, 11a supporting member 12 first bracket 13 second bracket 14, 15 bracket 16 mounting Board

Claims (3)

[Scope of utility model registration request] 1. When replacing an old handrail with a new handrail, the upper and lower sides of the upright standing upright at equal intervals are fixed to the floor and ceiling, respectively, and the lower chord member and the headboard are fixed between the uprights. Then, a plurality of vertical crosspieces are attached between the lower chord member and the headboard to form a handrail, and a horizontal load applied to the headboard is supported by a fixed portion between the upright and the floor and the ceiling. Handrail unit to do. 2. A U-shaped fixing member composed of a bottom piece having a loose hole and a vertical piece having a screw hole, a horizontal piece having a screw insertion hole and fitted to the bottom of the lower chord member, and a loose hole. An L-shaped support member formed of a vertical piece, the fixing member is fixed to a floor, the vertical lower portion is fitted into the fixing member, and the vertical pieces of the supporting member are fixed to both side walls thereof. The handrail unit according to claim 1, wherein the bottom portion of the lower chord member is fitted and fixed to the horizontal piece. 3. A lower wall having a groove in the lengthwise direction of the central portion and a reinforcing frame having a U-shaped cross section formed inside the groove, and a lower end portion extending below the lower wall to the upper outer side. It is composed of a side wall having an engaging portion, and a reinforcing frame having a U-shaped cross section formed inside the groove and having a groove in the longitudinal direction, and an upper wall bridged between the upper portions of the side walls. A lower chord member comprising a frame member having a substantially rectangular cross section and a decorative frame having a substantially U-shaped cross section having a locking claw for locking the locking part of the frame member at a free end of the side wall is used. Handrail unit to do.