JPH0647120Y2 - 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 up and down, and at the lower end of an adjacent vertical bar. 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 front and rear vertical bars, the operation of locking and unlocking the drop bar device can be performed from the side opposite to the vertical bar where the drop bar is provided. It is extremely troublesome, and the drop bar device that automatically locks and unlocks the drop bar when opening and closing the door does not have sufficient strength because the drop bar cannot be moved up and down significantly, and the structure is complicated. In combination with that, it has not been put to practical use.

Means for Solving the Problems Based on such circumstances, the present inventor has proposed an expandable gate having a pantograph expansion mechanism on a vertical surface and having a pair of vertical bars in front of and behind the door, on the site side and road side of the door. As a result of investigating a drop bar 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 the front and rear outside at the intersection position of the diagonal members. In a telescopic gate with a pair of U-shaped vertical bars arranged on one side and a pivot between the diagonal members and the vertical members, the upper part of the drop bar is bifurcated to form a pair of front and rear. It is vertically movably fitted to the lower end of the U-shaped vertical bar, and vertical holes are bored in the facing surfaces of the front and rear vertical bars, and the support shaft with the handle inserted in the vertical hole is attached to the top of the forked drop bar. It is fixed, and its end is projected from the inside of the vertical rail, and a pair of rollers is provided on the lower end of the scissors inside the vertical rail. By providing a roller catch that abuts both rollers with a spring interposed at the upper end and detachably engages the protruding part of the support shaft between the rollers of the roller catch, the intended purpose is achieved. is there.

In carrying out this plan, a roller catch may be attached to one of the front and rear vertical bars, in which case a support shaft having another handle may be inserted from the vertical hole of the vertical bar and fixed on the top of the drop bar. .

To fix the support shaft with the handle on the top of the drop rod, it is rational to form a screw hole in the drop rod and engrave a screw on the support shaft to screw them together. Others are also possible. In this case, the protrusion of the support shaft may be fixed to another member on the top of the drop rod.

In the implementation of the present invention, when the roller catch is attached to the vertical rail, the mounting metal fitting should be fitted to the inner surface of the U-shaped vertical rail, and the vertical position should be adjusted and fixed.

According to this invention, the upper part of the drop bar is formed into a bifurcated shape and is loosely fitted to the lower ends of a pair of front and rear vertical bars, and a vertical hole is formed in the facing surface of the U-shaped vertical bar, and a handle is provided in this vertical hole. Insert the supporting shaft to fix it on the top of the drop bar and integrate the drop bar and the handle, project the other end of the support shaft from the inside of the vertical bar, and attach the projecting part of the support shaft between the pair of roller catch rollers Since it is freely engaged, the support shaft engages or disengages with the roller of the roller catch by simply holding the handle on the front or rear of the door and moving the drop bar up and down, locking and unlocking the drop bar. Locking is done.

Example The drawings show an example of the device of the present invention, in which a pair of U-shaped vertical members are provided on the front and rear outer sides at the intersecting positions of the diagonal members (1), (1), ... Crosspiece (2)
The diagonal member (1) is provided by arranging (2) with the inside open.
(1) ··· and the cross member (1) (1) · · and the vertical rail (2) (2) at the intersection of the pin axis support, the vertical end of the door at the moving end and intermediate position ( Casters (3) on 2) (2)
(3) is attached, and in the expandable gate in which the door body is pivotally connected to the fixed support (4), the lower end of the vertical rail (2) (2) that is one pitch away from the vertical rail provided with the casters (3) (3) To the department
Drop bar (5) with screw holes formed on the bifurcated top
Is vertically movably fitted into a pair of front and rear U-shaped vertical rails, and vertical holes (6) and (6) are formed in the opposing surfaces of the U-shaped vertical rails.
The support shaft (8) having the handle (7) is inserted into the vertical hole (6) of the front or rear vertical bar (2), and the support shaft (8) is inserted into the screw hole formed at the top of the drop bar (5). Screw the screw part, project the end from the inside of the vertical bar (2), apply paired rollers (10) (10) to the lower end of the scissors (9) (9), The roller catch (11) in which the coil spring wound around the rotating shaft of the body (9) (9) is pressed against the upper end of the scissors-like body (9) (9) so that both rollers are constantly in contact, It is fixed inside the crosspiece (2) and at the upper end position of the vertical hole (6) through a mounting metal fitting (12) fitted to the inner surface of the vertical crosspiece (2), and the vertical holes of other vertical crosspieces (2) ( Insert the support shaft (8) having the handle (7) into 6),
The screw part of the spindle (8) is screwed into the screw hole formed on the top of the drop rod (5).

In the figure, (13) shows a door-supporting column, and (14) shows a drop rod support.

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]

The drawings show an example of the device of the present invention. Fig. 1 is an enlarged perspective view of a main part, Fig. 2 is a cross-sectional view of the same, and Fig. 3 is an elevation view of a telescopic gate to which the device of the present invention is applied. , (2) in the figure
Is a vertical rail, (5) is a drop bar, (6) is a vertical hole, (7) is a handle, (8) is a spindle, (10) is a roller, and (11) is a roller catch.

Claims (1)

[Scope of utility model registration request] 1. A slanting member is inclined at an equal angle in opposite directions, and a pair of U-shaped vertical rails are provided outside the front and rear at a crossing position of the slanting member. In an expandable gate with a pivot between the crossing and diagonal members and the vertical crosspiece, the upper part of the drop bar is bifurcated and the upper and lower ends of a pair of front and rear U-shaped vertical crosspieces are vertically movably fitted. A vertical hole is formed in the facing surface of the vertical bar, and a support shaft having a handle inserted through the vertical hole is fixed to the top of the forked rod and its end is projected from the inside of the vertical bar. A pair of rollers are attached to the lower end of the scissors, and a roller catch that abuts both rollers via a spring is provided on the upper end, and the protrusion of the support shaft is attached to and detached from the rollers of the roller catch. An extendable gate drop bar device that is freely engaged.