JPS6316755Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) This invention relates to horizontally curved handrails used on balconies, window sills, building rooftops, etc., and particularly to an assembly device for vertical lattice-type handrails. .

(Prior Art) Generally, when handrails are erected around the edges of balconies, window sills, building roofs, etc., horizontally curved caps may be used depending on design requirements. By the way, in order to form such a handrail cap using a substantially rectangular cylindrical extruded material made of aluminum or its alloy, it is necessary to curve a straight material in a horizontal plane. Because the rectangular cylindrical wall material for the
When this extruded material is curved, a tensile force is applied to the side wall on the convex side of the Kasagi and it becomes dented. At the same time, a compressive force is applied to the side wall on the concave side, causing wrinkle-like distortion and reducing the product value. It had some drawbacks. On the other hand, in the case of a vertical lattice type handrail, it is necessary to connect the upper end of the muntin of each vertical bar to the cape in a T-shape, and to connect the lower end to an upright member such as a horizontal bar or anchor fitting. Therefore, when connecting the upper end of each muntin to the Kasagi in a T-shape, a cylindrical muntin is used, a long bolt is inserted into it, and the threaded portion of the upper end of this bolt is screwed to the Kasagi. In this conventional method, the upper threaded portion of each bolt is screwed into a single female threaded portion provided on the bottom wall of the Kasagi. However, if the upper end of each bolt is screwed into only one place on the kasagi, the threaded part is unstable, and the upper end surface of each muntin is in contact with the lower surface of the bottom wall of the kasagi. However, when an external force is applied to the cap, the connecting portion between the bolt and the cap is rotated, which causes the muntin to deform into an inclined shape, causing the T-shaped connection to the cap to collapse.

(Purpose of the invention) This invention was made in view of the above-mentioned circumstances, and when forming a cap by bending an extruded aluminum or aluminum alloy material in a horizontal plane, dents and wrinkles may occur on the side walls. It is difficult for distortion to occur, and the connection between the Kasagi and the kumiko that makes up the vertical beams is strong.
The object of the present invention is to provide a curved handrail that stably maintains a letter-shaped connected posture.

(Structure of the device) This device is made of aluminum or its alloy, which is formed into a substantially cylindrical shape with a top wall, a bottom wall, both side walls, and a horizontal intermediate wall that connects the intermediate portions of both side walls. An extruded material is curved in a horizontal plane to form a handrail cap, and an internal thread is provided that vertically passes through the bottom wall of the cap and the horizontal intermediate wall to form a vertical bar of the handrail. A long bolt is inserted into the inside of the cylindrical muntin, its upper end is screwed into both female threads of the bottom wall and the intermediate wall, and the lower end of the long bolt is inserted into the muntin. An assembly device for a curved handrail that integrates a handrail cap, a muntin, and the upright member by connecting them to the upright member.

(Embodiment) FIGS. 1 and 2 show a first embodiment of this invention. In the figure, 1 is a Kasagi, with a top wall 1a, a bottom wall 1b, both side walls 1c, 1d, and both side walls 1c, 1.
It is formed by bending a substantially rectangular cylindrical extruded aluminum or alloy material made of aluminum or its alloy in a horizontal plane, and has a horizontal intermediate wall portion 1e that connects intermediate portions of d and a horizontal intermediate wall portion 1e. However, screw holes 2a and 2b are formed at required intervals in the horizontal direction in the horizontal intermediate wall portion 1e and bottom wall portion 1b of the lever cap 1, respectively, so as to pass through both in the vertical direction. 3 is a polygonal cylindrical muntin that constitutes a vertical bar, 4
Similar to the Kasagi 1, it is a horizontal crosspiece with a downward U-shaped longitudinal section that is curved in the horizontal plane, and inside the muntin 3, long bolts 5 with threads cut at the upper and lower ends 5a and 5b are arranged. . The upper end 5a of this bolt 5 is screwed into both the screw holes 2a, 2b of the cap 1, and the lower end 5
By penetrating the horizontal beams 4 through the horizontal beams 4 and tightening them with nuts 6, the cap 1, the muntins 3, and the horizontal beams 4 are integrally connected to form a vertical lattice type handrail.

In the above-mentioned handrail, the horizontal beams 4 may be directly buried in the framework of a balcony, window sill, building roof, etc., or may be attached via an appropriate mounting member, or the horizontal beams 4 may be installed as lattice units at both ends of each unit. It is also possible to provide a handrail erecting support (not shown) so that the horizontal beam 4 is located above the handrail erecting surface.

3 and 4 show a second embodiment of this invention. The Kasagi 1 has almost the same structure as the first embodiment. Reference numeral 7 designates a cylindrical muntin, and 8 designates an embedded metal fitting corresponding to each muntin 7, which is made of iron or the like with both ends thereof bent so as to protrude downward in an L-shape. The upper end 5a of the long bolt 5 arranged inside the muntin 7 is screwed into both screw holes 2a and 2b of the cap 1, and the lower end 5b of the bolt 5 is passed through the embedded metal fitting 8 and the nut 6 By tightening the Kasagi 1, the Kumiko 7 and the embedded metal fittings 8
are integrally connected to form a vertical lattice-shaped handrail. This handrail is erected as shown in the third figure by embedding the embedded metal fittings 8 in the frame 9.

In the above embodiment, screw holes 5a and 5b are provided in the intermediate wall 1e and bottom wall 1b of the cap 1, but
This portion may be used as a through hole for a bolt, and a nut may be fixed to either the upper or lower portion thereof to form a female threaded portion. Further, it is also possible to use a long bolt in which only the upper end is a threaded portion and the lower end is a bolt head, or one in which a threaded portion is formed from the upper end to the lower end. Furthermore, it is possible to use structures and shapes other than those in the embodiment as the members for erecting the muntins (a unique effect of the invention). Since it is a substantially cylindrical extruded material consisting of a horizontal intermediate wall that connects the intermediate parts of the
When a straight extruded material is curved in a horizontal plane to form a curved cap, deformations such as dents in the convex side wall and wrinkles in the concave side wall due to the curved forming occur due to the resistance of the intermediate wall. greatly suppressed. In addition, the upper end of the long bolt that passes through the inside of the kumiko and connects the Kasagi, the Kumiko, and its erection member is screwed into two places, the middle wall and the bottom wall of the Kasagi. ,
Even if a large external force is applied to the kasagi, the connection between the long bolt and the kasagi, which are made up of these two threaded parts, will not rotate, so the T-shaped connection between the kasagi and the kumiko is very stable. Maintained strongly and stably.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of the first embodiment of the curved handrail assembly device according to this invention, Fig. 2 is a vertical sectional view thereof, Fig. 3 is a perspective view of the second embodiment, and Fig. 4 is FIG. 1...Kasagi, 1a...Top wall part, 1b...Bottom wall part, 1c, 1d...Side wall part, 1e...Intermediate wall part,
2a, 2b...screw hole (female thread), 3, 7...
Muntin, 4...Horizontal beam (member for erecting muntin), 5...Long bolt, 5a...Top end of long bolt, 5b...
...Lower end of the long bolt, 8...Embedded metal fitting (member for erecting muntin).

Claims (1)

[Scope of utility model registration request] An extruded material made of aluminum or its alloy, which is formed into a substantially rectangular cylindrical shape with a top wall, a bottom wall, both side walls, and a horizontal intermediate wall that connects the intermediate portions of both side walls, is curved in the horizontal plane. In addition to forming a handrail cap, a female thread is provided that passes through the bottom wall of the cap and the horizontal intermediate wall in the vertical direction, and a long thread is provided inside the tubular muntin constituting the vertical bar of the handrail. Inserting a long bolt and screwing its upper end into both internal threads of the bottom wall and intermediate wall, and connecting the lower end of the long bolt to the member for erecting the muntin. An assembly device for a curved handrail that integrates a handrail cap, a kumiko, and a member for its erection.