JPS581404Y2 - Railroad boxcar sliding door stop device - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a sliding door locking device for a railroad boxcar.

Some railway boxcars have an entrance/exit on the side of the car body, a running rail laid on the bottom of the car body, and the entrance/exit can be opened/closed by a sliding door movably provided on the running rail.

A locking device is installed between the sliding doors and between the sliding door and the side edge of the vehicle body, and when the locking device is locked, the sliding door cannot normally be opened. If the locking device were to come off due to inertia caused by starting, stopping, etc., and the sliding door would be opened, the luggage inside the vehicle would be scattered outside, potentially causing unexpected damage or accidents.

The present invention was proposed in view of the above points, and has a simple structure and is easy to install, and the sliding door will not be opened even if the locking device of the sliding door of a railroad boxcar comes off. What?
The purpose is to share sliding door locking devices.

Hereinafter, one embodiment of the present invention will be explained with reference to the drawings. 1 is a railway boxcar, and the car body 2 has entrances and exits 3 on the side.
is open, and the bottom of the vehicle body 2 has a front opening.

Running rails in the back two rows 4. , 42 are installed.

On the front running rail 41 are two central sliding doors 51.5.
.

There are also two sliding doors 53.5 on the left and right ends on the rear running rail 42. Each of the door rollers 6 is mounted so as to be transferable, and a lower sliding door work 7 is fixed to the lower part of each of the sliding doors 51 to 54 so as to straddle the traveling rails 41 and 42, respectively.

A guide roller 8 is attached to the upper part of each sliding door 51 to 54, and each guide roller 8 is rotatably accommodated in two rows of guide grooves 9 in the front and rear rows of the vehicle body 2.

10 is a latch for a locking device for the sliding doors 51-54.

A sliding door stop device 11 is attached to each of the sliding doors 5, to 54, and these devices 11 have the same structure. First, the device 11 for opening the sliding door 51 on the left side of the center will be explained. In the lower part, the illustrated example includes a fixed stopper 12 welded to the outer surface of the lower sliding door workpiece 7, and 5.corresponding to the fixed stopper 12. The vehicle body 2 includes a movable stopper 13 provided on the outer surface of the front traveling rail 41 in the illustrated example so as to be able to collide with the fixed stopper 12 when the vehicle body 2 is opened.

The movable stopper 13 is pivotally attached to a pivot 15 on the outer surface of the substrate 14, and a rotation regulating member 16 for regulating the rotation of the movable stopper 13 is welded to the outer surface of the substrate 14. 16 and the substrate 14 are configured as a unit.

Therefore, by welding the substrate 14 to the outer surface of the front running rail 41, the movable stopper 13 and the rotation regulating member 16 can be easily attached to the front running rail 41.

The movable stopper 13 is pivoted to the outer surface of the substrate 14 at a position offset from its center of gravity toward the abutment surface 13a with the fixed stopper, and therefore, in the free state, the movable stopper 13 is centered about the pivot shaft 15 in FIG. However, by engaging the engagement surface 13b at the lower part of the abutting surface 13a of the movable stopper 13 with the end surface of the rotation regulating member 16, the abutting surface 13a is opposed to it. positioned substantially perpendicular to the moving direction of the fixed stopper 12;
The movable stopper 13 is held in a position where it abuts against the fixed stopper 12.

An intermediate engagement surface 13c between the abutting surface 13a and the lower engagement surface 13b of the movable stopper 13 is formed by the rotation regulating member 16 when the movable stopper 13 is rotated clockwise as shown by the chain line in FIG. This causes the abutment surface 13a to escape downward from the movement path of the fixed stopper 12, and the movable stopper 13 is stopped at a position where the abutment with the fixed stopper 12 is released.

A recess 17 is formed on the outer surface of the movable stopper 13, and the head 15a of the pivot 15 is inserted into the recess 17.

In the above-mentioned sliding door + L mechanism 11, the sliding door 5 on the left side of the center and the sliding door 54 on the right end have the same structure, while the sliding door 5□ on the right side of the center and the sliding door 53 on the left end have different structures due to the opening direction of the sliding door. The movable stopper is configured so that the direction is opposite to that described above.

In the above configuration, when each sliding door 51 to 54 is closed and each latch 10 is applied, the first. As shown in FIG.
3a face each other with a slight interval.

In this state, for example, the central latch 10 is removed, and each row F51
, 52 are opened even slightly to the left and right, the substantially vertical abutting surfaces 12a of each fixed stopper 12 abut the substantially vertical abutting surfaces 13a of the movable stopper 13, and each of the subsequent sliding doors 50, 5
2 is prevented from opening, and therefore an accident such as luggage inside the vehicle body 2 being scattered outside can be prevented from occurring.

For example, when opening the sliding door 51, the movable stopper 13 is manually rotated clockwise as shown by the chain line in FIG. Since the abutting surface 13a of the movable stopper 13 escapes downward from the moving path of the fixed stopper 12, the fixed stopper 12 does not abut against the movable stopper 13.

On the other hand, when closing the sliding door 51, the movable stopper 13 is automatically pushed by the fixed stopper 12 and rotates clockwise as shown by the chain line in FIG. 3, so that the sliding door 51 can be closed without any trouble.

As described above, according to the present invention, a fixed stopper is fixed to the outer surface of the lower part of the sliding door, and a movable stopper is provided on the outer surface of the vehicle body, which corresponds to the fixed stopper and can collide with the fixed stopper when the sliding door is opened. Due to this simple structure, even if the locking device should come off, the sliding door can be prevented from opening due to the collision between the fixed and movable stoppers, thereby preventing damage, accidents, etc.

In addition, the movable stopper and its rotation regulating member are provided on the board and are configured as one unit, so when attaching the movable stopper to the vehicle body, the board can be simply fixed to the vehicle body by welding or the like. Therefore, the installation of the movable stopper is extremely easy.

In addition, the head of the shaft that pivotally connects the movable stopper to the board is recessed into the recess of the movable stopper, so there is no need to unnecessarily widen the overall width of the freight car, and there is no need to worry about the shaft head being exposed. This eliminates the risk of collision with other objects while driving, and also has a good appearance.

[Brief explanation of drawings]

Fig. 1 is a side view of a railway boxcar to which an embodiment of the present invention is applied, Fig. 2 is an enlarged sectional view taken along the line ■-■ in Fig. 1, Fig. 3 is an enlarged view of section A in Fig. 1, and Fig. 4 The figure is a perspective view showing the attachment relationship between the movable stopper and the fixed stopper. DESCRIPTION OF SYMBOLS 1...Railway boxcar, 2...Car body, 3...Entrance/exit, 4...Front running rail, 42...Rear running rail, 51-54...Sliding door, 11... sliding door stop device,
12...Fixed stopper, 12a...Abutment surface, 13.
...Movable stopper, 13a...Abutment surface, 14...Base board, 15...Pivot, 15a...Head, 16...Rotation regulating member, 17...Recessed portion.

Claims (1)

[Scope of utility model registration request] In a railroad boxcar, in which an entrance is opened on the side of the vehicle body, a running rail is laid at the bottom of the vehicle body, and the entrance can be opened and closed by a sliding door provided so as to be able to run on the running rail, and fixed to the outer surface of the lower part of the sliding door. While the stopper is fixed, a movable stopper that corresponds to the fixed stopper and can abut against the fixed stopper when the sliding door is opened is provided on the outer surface of the vehicle body, and the movable stopper is moved from the center of gravity of the movable stopper to the fixed stopper. The movable stopper is pivoted to a pivot on the outer surface of the substrate at a position biased toward the abutment surface side of the substrate, and the movable stopper is placed on the outer surface of the substrate to restrict rotation of the movable stopper and to position the movable stopper at a position where it abuts against the fixed stopper. A rotation regulating member is integrally provided to hold the movable stopper at a position where the movable stopper is released from colliding with the fixed stopper, and the movable stopper, the rotation regulating member, and the substrate constitute a unit body. A sliding door stop device for a railroad boxcar, wherein the board is fixed to the car body, a recess is provided on the outer surface of the movable stopper, and the head of the pivot is inserted into the recess.