JPS5912398Y2 - Fall prevention device for telescoping gates - Google Patents

Description

[Detailed description of the invention] This invention relates to an overturn prevention device for a retractable gate, and its purpose is to prevent the retractable gate from swinging laterally and to improve the self-supporting stability of the door body.

Conventionally, as a method of this kind, a drop bar is attached to the door body so as to be movable up and down, and the drop bar is engaged with a receiving metal fitting provided on the road surface. Not only is it difficult to expect a sufficient steady rest, but the operation is extremely troublesome because it must be performed in a bent-down position.

This proposal was made in view of the above circumstances, and in a telescoping gate having a pantograph type telescoping mechanism, a pair of vertical bars 1, 1 at the intermediate position or the moving end of the door body are installed in the front and rear.
are provided, and the cylindrical guide 2 is vertically suspended between the vertical bars,
The long-legged operating rod 3 is inserted into the cylindrical guide 2 and the compression spring 4 is inserted.
The operating rod 3 is attached so as to be movable up and down with
The upper end of the bottom-shaped receiving bracket 7 is rotatably fixed at the lower end via a bifurcated pressing spring 6 that elastically presses the locking bracket 5 outward, and is laid on the road surface that forms the opening/closing track of the door body. form an inwardly bent edge 8, 8 on a part of the door body, open the door body to a predetermined position,
When the operating rod 3 is operated downward, the upper end edge of the locking metal fitting 5 is elastically fitted into the inwardly bent edges 8, 8 of the receiving metal fitting 7.

In addition, in carrying out the present invention, if the inwardly bent edges 8, 8 are formed at the upper end on one side of the bottom-shaped receiving fitting 7,
A boat-bottom shaped receiving fitting 7 is provided so that the inwardly bent edges 8, 8 are closer to the doorstop pillar 9.

In the figure, 10 represents a fixed column, and 11 represents a caster.

The present invention has the above structure, and a pair of vertical bars 1, 1 is provided at the intermediate position or the moving end of the door body, and the cylindrical guide 2 is vertically suspended between the vertical bars. Long-legged operating rod 3
is inserted and the compression spring 4 is interposed, so when lowering the operating rod 3, it can be carried out in the normal posture.
When the locking metal fitting 5 and the inner bent edges 8, 8 of the receiving metal fitting 7 are disengaged, the reaction force of the compression spring 4 automatically restores the fit, and the lower end of the operating rod 3 Since the locking metal fittings 5 and 6 are rotatably fixed via the pressing springs 6, when the locking metal fittings 5 and 6 are fitted onto the inwardly bent edge of the upper end of the bottom-shaped receiving metal fitting 7, both metal fittings 5 and 6 will be elastic. The bottom-shaped receiving fitting 7 installed on the road surface has the inner bent edges 8, 8 attached to a part of its upper edge. Since the shape is limited, the inwardly bent edges 8 of the locking metal fitting 5 and the receiving metal fitting 7 when operating in the direction of closing the door body.
, 8 are automatically released, and the operation is extremely simple.

The proposed device has great practical effects, such as suppressing the lateral swing of the pantograph-type telescoping gate, increasing the self-supporting stability of the door, and allowing the door to be used with a longer length. .

[Brief explanation of the drawing]

1. Figure 1 is a front view showing an example of a telescoping gate equipped with the proposed device, Figure 2 is an enlarged vertical sectional view of the main parts, and Figure 3 is an enlarged plan view of the proposed receiving bracket. 2 is a cylindrical guide, 3 is an operating rod, 4 is a compression spring, 5 is a locking metal fitting, 6 is a pressing spring, 7 is a receiving metal fitting, and 8 is an inwardly bent edge.

Claims (1)

[Scope of utility model registration request] In a telescoping gate with a pantograph-type telescoping mechanism,
A pair of front and rear vertical bars is provided at the intermediate position or the moving end of the door body, a cylindrical guide is vertically suspended between the vertical bars, and a long-legged operating rod is inserted into the cylindrical guide to provide compression springing. is fixed to the lower end of the operating rod so as to be movable up and down, and is rotatably fixed to the lower end of the operating rod via a pressing spring that elastically presses the locking fitting outward;
An overturn prevention device for a telescoping gate, characterized in that a part of the upper end of a bottom-shaped receiving metal fitting laid on a road surface has an inwardly bent edge, and a locking metal fitting and a receiving metal fitting are removably fitted together. .