JPS5912399Y2 - Fall prevention device for telescoping gates - Google Patents

Description

[Detailed description of the invention] The present invention relates to an overturn prevention device for a telescoping gate, and its purpose is to prevent the door from swinging laterally and to increase the self-sustaining stability of the door.

Conventionally, as this type of means, a method in which a drop bar attached to the door body is engaged with a receiving metal fitting buried in the road surface has been widely practiced.

However, with this method, there are many gaps in the fit between the drop bar and the receiving metal fitting, making it difficult to ensure sufficient steady rest, and the operation must be performed in a bent-down position, which is extremely problematic. It was complicated.

This project was devised based on these circumstances, and in a gate having a pantograph type expansion and contraction mechanism, a cylindrical guide connected to the crosspieces 1, 1, etc. that form the door body. 2, an operating rod 3 having an inverted T-shape at its lower end is loosely fitted, and a coil spring 4 is interposed between the cylindrical guide 2 and the operating rod 3.
Locking edges 7, 7 forming a guide groove 6 are provided on one side of the upper surface of the bottom-shaped receiving fitting 5, and the receiving fitting 5 is placed in the opening/closing track of the door body, and the locking edges 7, 7 of the receiving fitting are connected to the doorstop pillar 8. When the door body is completely opened, the operating rod 3 is buried in the road surface and the receiving metal fitting 5
The guide groove is arranged at the 6th position.

The illustrated gate has a cylindrical guide 2 that also serves as a pin shaft at the intersection of horizontal crosspieces that intersect in a pantograph shape, but other types of gates having a pantograph type expansion/contraction mechanism may also be used. For example, a pair of vertical crosspieces is provided at the intermediate position or the moving end of the door body, the lower ends of the crosspieces are connected by a horizontal member, and a cylindrical guide is fixed to the horizontal member. By doing this, you can easily attach the operating rod.

In the figure, 9 represents a fixed column, and 10 represents a caster.

This project has the structure as described above, and the crosspiece 1 that forms the door body,
An operating rod 3 having an inverted T-shape at its lower end is loosely fitted into a cylindrical guide 2 connected to a cylindrical guide 2 connected to a cylindrical guide 2, and a guide groove 6 is formed on one side of the upper surface of the bottom-shaped receiving fitting 5. A locking edge 7 is provided, and this is buried in the road surface with the locking edge facing toward the door stop pillar 8. When the door body is fully opened, the receiving fitting 5 of the operating rod 3 is inserted into the guide groove 6.
Therefore, rotate the operating rod 3 to the position where the inverted T-shaped portion at the lower end matches the guide groove 6, push it downward, and then push the operating rod 3 approximately 90' By rotating the operating rod 3 at an angle of When the T-shaped portion slides along the locking edges 7, 7 of the receiving metal fitting 5 and the fitting is released, the coil spring 4 interposed between the cylindrical guide 2 and the operating rod 3 reacts. Since the operating rod 3 is automatically pulled up by force, these series of operations are as follows.
The practical effects of this proposal are remarkable, as it is significantly simplified and can be carried out in a standing position.

[Brief explanation of the drawing]

Fig. 1 is a front view showing an example of a telescoping gate equipped with the proposed device, Fig. 2 is an enlarged vertical sectional view of the same main part, and Fig. 3 is an enlarged perspective view of the proposed receiving fitting. 2 is a cylindrical guide, 3 is an operating rod, 4 is a coil spring, 5 is a receiving metal fitting, 6
7 represents a guide groove, 7 represents a locking edge, and 8 represents a door stop column.

Claims (1)

[Scope of utility model registration request] In a gate with a pantograph type expansion and contraction mechanism, an operating rod with an inverted T-shape at the lower end is loosely fitted into a cylindrical guide connected to a crosspiece that forms the door body, and is placed between the operating rod and the cylindrical guide. A coil spring is interposed, a locking edge that creates a guide groove is provided on one side of the upper surface of the bottom-shaped receiving metal fitting, and the receiving metal fitting is buried in the road surface in the opening/closing track of the door body, and the locking edge is closed from the doorstop pillar. ,
A fall prevention device for a telescoping gate, characterized in that when the door body is completely opened, the operating rod is positioned in the guide groove of the receiving fitting.