JPH0716880Y2 - Expansion gate drop bar device - Google Patents

Description

[Detailed Description of the Invention] Field of Industrial Application This invention relates to a drop bar device for an expansion gate.
In particular, the invention relates to a telescopic gate having a pantograph telescopic mechanism on a vertical surface and having paired vertical bars in front of and behind the door.

2. Description of the Related Art A drop rod device for an expandable gate of this type employs a method of attaching a rod-shaped drop fitting to one of front and rear vertical bars of a pair of vertical bars. (For example, Japanese Utility Model Laid-Open No. 54-39293) In Japanese Utility Model Laid-Open No. 1-151600, a drop bar with a forked upper part is provided at the lower end of a vertical bar so that it can be moved vertically, It is described that a locking rod is automatically locked and unlocked when a door is opened and closed by providing an engaging projection.

However, in the case where the drop bar is attached to one of the vertical bars arranged inside and outside the door body, the locking of the drop bar device is performed from the opposite side of the vertical bar where the drop bar is provided.・ The operation of unlocking is extremely troublesome, and the drop bar device that automatically locks / unlocks the drop bar when the door is opened / closed has sufficient strength because the drop bar cannot be moved up and down significantly. It has not been put to practical use due to the fact that it is not obtained and the structure is complicated.

Means for Solving the Problems Under the circumstances, the inventor of the present invention has an expandable gate having a pantograph expansion mechanism on a vertical surface and having a pair of vertical rails inside and outside the door, on the site side and road side of the door. As a result of investigating the drop rod device that can be easily locked and unlocked from all of the above, the diagonal members are inclined at equal angles in opposite directions, and both diagonal members A pair of vertical bars with an inward U-shaped cross section that sandwich the frame from the inside and outside of the door body are arranged facing each other, and a pivot shaft is provided at the intersection of the diagonal frame and between the diagonal frame and the vertical frame. In the expandable gate, the upper part of the drop bar is bifurcated and vertically movably fitted inside the lower ends of a pair of U-shaped vertical bars, and vertical holes are drilled in the facing surfaces of the pair of vertical bars. , The screw rod inserted between the vertical holes of both vertical bars is screwed onto the top of the forked drop bar, and both ends of the screw rod are removed from the vertical bar. The intended purpose is achieved by projecting the inside and outside of the body, fixing the grips to both ends of the screw rod, and separating at least one grip from the vertical rail.

In carrying out the present invention, instead of engraving the screws over the entire length of the threaded rod, screws having the same direction may be formed at both ends of the threaded rod.

According to the present invention, the upper part of the drop bar is formed into a bifurcated shape and is vertically loosely fitted inside the lower ends of the pair of U-shaped vertical bars, and the vertical holes are formed in the facing surfaces of the pair of vertical U-shaped bars. The threaded rod inserted through the vertical holes of both vertical bars is screwed onto the top of the forked rod, and the handles attached to both ends of the threaded rod are separated from the outside of the vertical bar. Therefore, the drop bar is integrated with the handle of the threaded rod protruding inside and outside the door body, and the drop bar can be easily moved up and down from inside and outside the door body. If the root portion is tightly brought into contact with the outside of the vertical rail, the drop rod can be held at a desired height position due to its contact resistance.

Example The drawings show an example of the device of the present invention, in which an inward opening is made inside and outside the door body at the intersection position of the diagonal members (1), (1), ... A pair of vertical U-shaped vertical bars (2) and (2) are provided, and the diagonal member (1)
(1) ··· and vertical bar (2) (2) at the intersection is supported by a pin shaft,
In a telescopic gate in which casters (3) and (3) are attached to the vertical bars (2) and (2) at the moving end and the intermediate position of the door body and the door body is pivotally connected to the fixed support column (4), the caster (3) ( At the lower end of the vertical bar (2) (2), which is one pitch away from the vertical bar provided with 3), a drop bar (5) having a bifurcated apex with a screw hole is formed. A screw that fits inside vertically movable and has vertical holes (6) and (6) on opposite surfaces of a U-shaped vertical bar, and has screw parts (8) and (8) in the same direction at both ends. Vertical hole (6) (6) in the rod (7)
The threaded portion (8) of the threaded rod (7)
(8) are respectively screwed onto the tops of the forked drop bars (5), and the handles (9) (9) (9) are attached to both ends of the threaded rod (7) projecting from the vertical bars (2) (2) into and out of the door body. ) Are fixed so that their roots are slightly separated from the outside of the vertical bar (2).

In the figure, (10) is a door post, (11) is a drop rod support, (12)
Is a width determining bush, (13) is a washer, and (14) is a packing material.

Effect of the Invention The drop bar device for the expansion / contraction gate of the present invention can be locked / unlocked extremely easily from both inside and outside the door body.

[Brief description of drawings]

FIG. 1 is an enlarged vertical sectional view of a main part of the device of the present invention, and FIG. 2 is an elevational view of a telescopic gate to which the device of the present invention is applied.
Is a U-shaped vertical bar, (5) is a forked drop bar, (6) is a vertical hole,
(7) represents a screw rod, and (9) represents a handle.

Claims (1)

[Scope of utility model registration request] 1. A U-shaped cross section in which the diagonal members are inclined at equal angles in opposite directions, and the diagonal members are sandwiched from the inside and outside of the door at the intersection of the diagonal members. In a telescopic gate with a pair of vertical bars facing each other and a pivot between the diagonal members and the vertical bars, the upper part of the drop bar is bifurcated and a pair of cross sections It is vertically movably fitted inside the lower end of a U-shaped vertical bar, and a vertical hole is made in the facing surface of a pair of vertical bars, and a fork-shaped drop rod with a screw rod inserted between the vertical holes of both vertical bars. In addition to being screwed to the top of the rod, both ends of the screw rod are projected from the vertical bar to the inside and outside of the door body, the handles are fixed to both ends of the screw rod, and at least one handle is separated from the vertical bar. Stretchable gate drop bar device.