JPH0344891Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Field of Application) This invention relates to a connection device for connecting the supports and horizontal frames of handrails installed on balconies, balconies, building rooftops, outdoor passages, etc.

(Prior art) Generally, this type of handrail, as shown in Fig. 1,
Supports 2 are erected vertically at appropriate intervals along the periphery of the base 1, and a cap 3 is erected between the upper ends of these supports 2, and the lower end sides of the supports 2 are connected by a horizontal frame 4. , and has a structure in which a large number of vertical bars 5 are arranged between the cap 3 and the horizontal frame 4.

As a conventional and suitable connection structure for right-angled connection between the support column 2 and the horizontal frame 4 in such a handrail, there is a connection device shown in Japanese Utility Model Publication No. 12709/1983.
That is, this connecting device uses a horizontal frame that has a substantially downward U-shaped vertical section and has a plurality of upper and lower engagement ribs protruding from the inner surfaces of opposing hanging walls, and the ends of the horizontal frame A vertical notch is provided in the above-mentioned ribs for engagement on both sides, a coupling plate is fitted into the notch, and a coupling bolt fixedly protruding from the side surface of the column is inserted into the bolt insertion hole of the coupling plate and tightened with the nut. be. According to this connecting device, the column and the horizontal frame are firmly connected without creating a gap between them, and the connecting bolts are not exposed to the outside, so there is an advantage that the external appearance is excellent.

(Problem to be solved by the invention) However, in the above-mentioned conventional coupling device, since the coupling plate is fitted into the longitudinal notch from below, the engagement rib at the lower end is used to prevent the coupling plate from falling. It is necessary to insert the stop plate horizontally using the groove formed between the holes to prevent it from coming out, which increases the number of parts and increases the cost. Since the connecting bolts are passed through the bolt insertion holes of the connecting plate while the bolts are butted against each other and invisible from the outside, it is not easy to align the ends of the connecting bolts with the bolt insertion holes, and there is a problem in that it takes time and effort to connect them. .

This invention was made to solve the above-mentioned problems, and aims to provide a coupling device that does not require the coupling plate to be prevented from coming off and that allows the coupling bolt to be easily positioned with respect to the coupling plate. .

(Means for Solving the Problems) In order to achieve the above object, the device for connecting the handrail supports and the horizontal frame according to this invention consists of a support that is upright on the base, and a vertical section that is substantially downward U-shaped. and a horizontal frame having a plurality of upper and lower engagement ribs protruding from the inner surfaces of the opposing hanging walls, a connecting bolt fixedly protruding from the side surface of the support column, and a connecting bolt fixedly protruding from the side surface of the support column, and the above-mentioned both sides at the end of the horizontal frame. Vertical notches of a required width are formed opposite to each other in the engagement rib, and a connecting plate having a generally U-shaped bolt insertion notch that opens downward between both vertical notches and having a warp as a whole is pressed. The coupling bolt is inserted into the bolt insertion notch of the coupling plate and tightened with a nut.

(Example) Hereinafter, an example of this invention will be described based on the drawings.

As shown in FIGS. 2 and 3, the support column 2 is made of a square pipe made of extruded aluminum or its alloy, and bolt insertion holes 6 are drilled in the side wall 2a at the connecting positions of the horizontal frames. A connecting bolt 7 is inserted through the connecting bolt 7 from the inside, and is fixed by screwing and tightening a lock nut 8 to the externally protruding portion of the connecting bolt 7. The horizontal frame 4 is made of an extruded material made of aluminum or its alloy, and has a generally downward U-shaped vertical section.
On the inner surface of a, there are engaging ribs 9, 9 with a linear cross section close to the top wall portion 4b, and engaging ribs 10, which are located near the lower ends of each of the hanging wall portions 4a and 4a and have an L-shaped cross section and whose tip side stands up. , 10 and engaging ribs 11, 11 each having a linear cross section are provided in opposing rows. Thus, vertical notches 12 are formed in the vicinity of the ends of the horizontal frame 4 to face each other by removing the engaging ribs 9, 10, 11 on both sides with the same width.
A connecting plate 14 made of stainless steel or the like, which has a substantially U-shaped bolt insertion notch 13 that opens downward and has a curved shape in plan view as a whole, is fitted between the connecting plate 12 and the connecting plate 14 . Notch 1 for bolt insertion
The column 2 and the horizontal frame 4 are connected by screwing and tightening a nut 15 onto the connecting bolt 7 inserted through the column 3.

In the case of the connecting device having the above-mentioned configuration, in connection construction, the connecting plate 14 is first fitted from the lower side between the both vertical direction notches 12, 12 of the horizontal frame 4, as shown in FIG. At this time, the warpage of the coupling plate 14 and the elasticity of the material of the horizontal frame 4 are used to press fit. Therefore, as shown in FIG. 6, the coupling plate 14 after fitting is in pressure contact with each of the engagement ribs 9, 10, 11 in a warped state, so there is no risk of it falling under its own weight, and there is no need to prevent it from coming off. It is. Furthermore, when connecting the horizontal frame 4 to which the connecting plate 14 is attached to the support column 2, since the connecting plate 14 is formed with a substantially U-shaped bolt insertion notch 13 that opens downward, as shown in FIG. Simply place the end of the horizontal frame 4 over the coupling bolt 7 from above, thereby allowing the coupling bolt 7 to fit into the bolt insertion notch 1.
3, it is guided by the rounded portions 13a, 13a on both sides, and is automatically positioned. By screwing the nut 14 onto the coupling bolt 7 and tightening it, a pulling force is applied to the horizontal frame 4 in the direction of the support column 2 via the coupling plate 14 and the ribs 9, 10, and the horizontal frame 4 has its end face It is connected and fixed to the outer surface of the support column 2 strongly and without any gaps. In this connected state, the coupling bolt 7 and nuts 8, 15 are covered by the horizontal frame 4 and are not exposed to the outside.

In the above embodiment, the connecting plate 14 is curved in a plan view, but in this invention, as shown in FIG. 7, a connecting plate 14a having a curve in a side view is used. There is no problem.

(Effects Unique to the Invention) According to the connecting device according to this invention, the connecting plate fitted into the horizontal frame in order to connect the horizontal frame to the support via the connecting bolts and nuts protruding from the support is itself a connecting plate. Since it has a structure that does not fall, there is no need for a stop plate to prevent the connecting plate from falling out, which reduces the number of parts and reduces material costs.Moreover, it is possible to insert a roughly U-shaped bolt that opens downward into the connecting plate. Since the universal notch is formed, simply by placing the end of the horizontal frame over the connecting bolt position from above, the connecting bolt will fit into the notch and be automatically positioned, making the connection construction operation extremely simple. Further, according to this connecting device, the column and the horizontal frame are firmly connected without creating a gap between them, and the connecting bolts and nuts are not exposed to the outside, resulting in a good appearance.

[Brief explanation of the drawing]

Fig. 1 is an external view showing an example of a handrail, Fig. 2 is a partially cutaway side view showing an embodiment of the connecting device of this invention, Fig. 3 is a sectional view taken along the line - in Fig. 2,
FIG. 4 is a perspective view showing the fitting operation of the coupling plate to the horizontal frame, FIG. 5 is a partially cutaway side view showing the connecting operation between the support and the horizontal frame, and FIG. 6 is the arrow indicated by the - line in FIG. The cross-sectional view and FIG. 7 are a cutaway side view of a main part of a horizontal frame fitted with a coupling plate of another configuration. 2... Support column, 4... Horizontal frame, 4a... Hanging wall part, 7
... Connection bolt, 9, 10, 11 ... Engagement rib, 12 ... Vertical notch, 13 ... Bolt insertion notch, 14, 14a ... Connection plate, 15 ... Nut.

Claims (1)

[Scope of utility model registration request] It is equipped with a column that stands upright on a base, and a horizontal frame that has a substantially downward U-shaped longitudinal section and has a plurality of upper and lower engagement ribs protruding from the inner surfaces of opposing hanging walls, and a connecting bolt is attached to the side surface of the column. a substantially U-shaped bolt insertion notch that protrudes in a fixed manner and has longitudinal notches of a required width formed opposite to each other in the engaging ribs on both sides at the ends of the horizontal frame, and that opens downward between both the longitudinal notches; A handrail support column and a horizontal frame are press-fitted together, and the coupling bolt is inserted into the notch for bolt insertion in the coupling plate and tightened with a nut. Coupling device.