JP3229524B2 - Rail car lid opening and closing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a railway vehicle lid opening / closing device for supporting a lid closing an opening on a bottom surface of a railway vehicle body so as to be openable and closable.

[0002]

2. Description of the Related Art Conventionally, a hinge has been used as a support for opening and closing a cover closing an opening. The hinge is used to easily remove and attach the cover. As shown in FIG.
0 is fixed, and the other is formed with an insertion hole 102 into which the hinge pin 100 can be inserted. Further, as shown in FIG. 7, an inverted "J" -shaped bracket 106 is hooked on a fixed hinge pin 104 so as to be detachable.

[0003]

However, in the former case, the hinge pin 100 is inserted into the insertion hole 1.
In order to insert / remove the hinge pin 02, it is necessary to move a distance a corresponding to the length of the hinge pin 100 as shown in the figure. Therefore, there is a problem that it is not possible to insert and remove unless the space of the distance a is secured.

[0004] In the latter case, it always comes off in one direction in the direction of the arrow b in the figure. When holding the lid in the closed state, it is necessary to prevent the lid from swinging around the hinge pin 104 and to restrict the movement of the lid in this direction. The mechanism is complicated,
There was a problem that the operation became complicated.

An object of the present invention is to provide a lid opening / closing device for a railway vehicle which has a simple structure and can be attached / detached even in a narrow place.

[0006]

In order to achieve the above object, the present invention has the following structure as means for solving the problems. That is, in a lid opening / closing device for a railway vehicle that supports an openable / closable lid that closes an opening on the bottom surface of the railroad vehicle body, the fulcrum axis swings on one of the vehicle body side or the lid side and the other on the other side. An insertion hole to be inserted into the fulcrum shaft so that a part of the circumference of the fulcrum shaft is smaller than its diameter.
While forming a flat portion notched to a small width, the fulcrum shaft when the lid is opened at a predetermined angle,
Approach the vehicle body from a direction parallel to the flat part
A slit that can be inserted from the direction
A lid opening / closing device for a railway vehicle, wherein a latch member for restricting swinging of the lid around the fulcrum axis when the lid is closed is provided.

[0007] Further, a stopper mechanism may be provided for restricting swinging of the lid in a further opening direction when the lid is opened at a predetermined angle.

[0008]

Embodiments of the present invention will be described below in detail with reference to the drawings. As shown in FIG. 1, reference numeral 1 denotes a railway vehicle main body, and an opening 2 is formed on the bottom surface of the vehicle main body 1 toward the ground, and this opening 2 is used for maintenance and inspection of various devices in the vehicle main body 1. Used for etc.

Further, a cover 4 formed to have a size to close the opening 2 is provided. On the vehicle body 1 side, as shown in FIGS. Is attached. The fixed side fitting 6 includes a pair of side plates 8 and 10 that are vertically erected, and a fulcrum shaft 12 is fixed to the side plates 8 and 10 through the side plates 8 and 10.

A fulcrum shaft 12 protruding outward from both side plates 8, 10 is partially cut out on two parallel surfaces to form flat surfaces 14a, 14b, 16a (only a part is shown). Are formed, and both flat surfaces 14a, 14b, 1
The width between 6a is formed to be smaller than the diameter of the fulcrum shaft 12. A stop plate 18 extending downward is provided between the side plates 8 and 10 so as to protrude below the side plates 8 and 10.

On the other hand, hooking plates 20 and 22 are erected on the lid 4 in parallel with the side plates 8 and 10 at intervals such that the side plates 8 and 10 can be inserted therebetween, corresponding to the fixed side metal fittings 6. ing. In both hooking plates 20, 22, insertion holes 24,
Each of the insertion holes 24 and 26 has a diameter that allows the fulcrum shaft 12 to be swingably inserted when the fulcrum shaft 12 is inserted.

On both hooking plates 20, 22, slits 28, 30 are formed at intervals corresponding to the width of the flat surfaces 14a, 14b, 16a of the fulcrum shaft 12.
a, 14b, 16a and the direction of the slits 28, 30 so that the insertion hole 2 is inserted through the slits 28, 30.
The fulcrum shaft 12 can be inserted into each of the support shafts 4 and 26.

The direction of the flat surfaces 14a, 14b, 16a and the direction of the slits 28, 30 match when the lid 4 is opened at a predetermined angle θ as shown in FIG. It is configured to be. In the present embodiment, the slits 28 and 30 are formed so as to be parallel to the lid 4 and the flat surfaces 14a, 14b and 16a are tilted 30 degrees downward from horizontal. This allows
Fits when the predetermined angle θ is 30 degrees. This predetermined angle θ is
The distance may be determined as appropriate in consideration of peripheral devices, the distance between the bottom surface of the vehicle body 1 and the track surface, and the like.

Further, when the fulcrum shaft 12 is inserted into the insertion holes 24 and 26 and the lid 4 is set at a predetermined angle θ, the regulating shaft 32 mounted on the hooking plates 20 and 22 is moved to the stop plate 18.
, So that the lid 4 does not swing any more. In the present embodiment, the stopper plate 33 and the regulating shaft 32 constitute a stopper mechanism 33.

On the other hand, as shown in FIG. 1, a cylindrical member 34 is attached to the lid 4 at the edge opposite to the hooking plates 20 and 22.
The latch member 36 is inserted into the cylindrical member 34 so as to be slidable in parallel with the lid 4. When the opening 2 is closed by the lid 4, a stopper 40 having a stopper hole 38 into which the latch member 36 can be inserted is attached to the vehicle body 1 so as to face the latch member 36. ing. The latch member 36 is configured to slide through a link member 44 by swinging a swingably supported lever 42.

Next, the operation of the above-described lid opening / closing device for a railway vehicle according to the present embodiment will be described. Opening 2 by lid 4
Is closed, the cover 4 is tilted at a predetermined angle θ, and the directions of the slits 28, 30 and the flat surfaces 14a, 14b, 16
Match with the direction of a. Then, the lid 4 is pushed up in the direction opposite to the arrow c in FIG. 1, and the fulcrum shaft 12 is passed through the slits 28 and 30, and as shown in FIG.
Insert into 6.

At this time, even if the distance between the bottom surface of the vehicle body 1 and the track surface is small, the fulcrum shaft 12 can be easily inserted into the insertion holes 24 and 2 by making the predetermined angle θ small.
6 can be inserted. Further, the cover 4 can be inserted by tilting the cover 4 at a predetermined angle θ and pushing up without requiring a special wide space.

Next, the cover 4 is swung around the fulcrum shaft 12 to close the opening 2, the lever 42 is operated, and the latch member 36 is slid and inserted into the stop hole 38. This allows
The swing of the lid 4 around the fulcrum shaft 12 is restricted, and the directions of the slits 28 and 30 and the flat surfaces 14a, 14b, 16
a, the fulcrum shaft 12 is inserted into the insertion holes 24, 2
It does not deviate from 6. Therefore, the lid 4 can be stopped with a simple structure and operation for inserting the latch member 36 into the stop hole 38.

On the other hand, when the cover 4 is opened, the lever 4
2 is operated to pull out the latch member 36 from the stop hole 38. Then, the cover 4 is moved around the fulcrum shaft 12 by an arrow d in FIG.
In the direction until the regulating shaft 32 comes into contact with the stopper plate 18. At this time, the lid 4 has a predetermined angle θ, and the directions of the slits 28 and 30 and the directions of the flat surfaces 14a, 14b and 16a match.

Therefore, the lid 4 can be easily pulled down in the direction of the arrow c in FIG. 1 without performing a troublesome operation of matching the directions of the slits 28 and 30 with the directions of the flat surfaces 14a, 14b and 16a. Thereby, the fulcrum shaft 12 is pulled out through the slits 28 and 30, and the lid 4 can be removed from the vehicle body 1.

In the above-described embodiment, the fulcrum shaft 12 is provided on the vehicle body 1 side, and the insertion holes 24 and 26 are provided on the lid 4 side. Conversely, the fulcrum shaft 12 is inserted on the lid body 4 side. Holes 24, 26
Can be implemented by providing the vehicle body 1 on the vehicle body 1 side. Such a second embodiment will be described with reference to FIG.

A support member 52 having an insertion hole 50 is provided on the vehicle body 1 side, and a slit 54 that opens downward is formed in the support member 52. A fulcrum shaft 56 parallel to the insertion hole 50 is fixed to the lid 4 via a mounting bracket 58. A pair of flat surfaces 58a, 5 which are perpendicular to the fulcrum shaft 56 when the lid 4 is inclined at a predetermined angle.
8b is formed by cutting out a part of the circumference of the fulcrum shaft 56, the width between the flat surfaces 58a and 58b is smaller than the diameter of the fulcrum shaft 12, and the slits 54 can be inserted therethrough.

In the second embodiment, the slit 54 and the flat surfaces 58a, 58b
The fulcrum shaft 56 is inserted into the insertion hole 50 through the slit 54. As a result, the cover 4 is supported by the fulcrum shaft 56.
, The direction of the slit 54 and the direction of the flat surfaces 58a and 58b are different.
The fulcrum shaft 56 does not pass through the slit 54, and the lid 4 does not come off.

Further, instead of the latch member 36 described above, the open / close shaft 6 is perpendicular to the lid 4 as in the third embodiment shown in FIG.
0 is rotatably supported, and a latch member 6
2 so that they rotate together. A metal fitting 64 is attached to the vehicle body 1 side when the lid 4 closes the opening 2. When the opening / closing shaft 60 is rotated, the latch member 62 is turned, and the fitting 64 can be sandwiched between the latch member 62 and the lid 4 by the urging force of the spring 66.

Thus, the opening / closing shaft 60 is rotated, the latch member 62 is pivoted to clamp the metal fitting 64, the swing of the lid 4 is restricted, the opening 2 is closed, and the latch member 62 is pivoted. The opening 2 can be opened by removing the lid 4 and releasing the lid 4 by releasing the clamp 64 and opening the lid 4 at a predetermined angle.

As described above, the latch member 36 is fixed to the stop hole 3.
8, or by interposing a bracket 64 between the latch member 62 and the lid 4 so long as the swing of the lid 4 around the fulcrum shafts 12 and 56 can be regulated. It is not necessary to fix it firmly. Therefore, the latch members 36, 62
It is possible to adopt a configuration in which the regulation can be released by a simple operation.

As described above, the present invention is not limited to such an embodiment, and can be implemented in various modes without departing from the gist of the present invention.

[0028]

As described in detail above, the lid opening / closing device for a railway vehicle according to the present invention can easily remove the lid with a small predetermined angle even if the distance between the bottom surface of the vehicle body and the track surface is small. And an effect that it can be attached. In addition, a special large space is not required for attachment / detachment. Furthermore, since the latch member only needs to be able to regulate the swing of the lid around the fulcrum axis, the configuration can be such that the regulation can be released by a simple operation. By providing the stopper mechanism, the stopper mechanism restricts the swing, so that the swing operation can be easily performed in a state where the lid is opened at a predetermined angle.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a lid opening / closing device for a railway vehicle as one embodiment of the present invention.

FIG. 2 is an enlarged perspective view of a state before a fulcrum shaft of a lid opening / closing device for a railway vehicle according to the present embodiment is inserted into an insertion hole.

FIG. 3 is an enlarged perspective view of a state after the fulcrum shaft of the lid opening / closing device for the railway vehicle of the embodiment is inserted into the insertion hole.

FIG. 4 is an enlarged perspective view of a state before a fulcrum shaft of a lid opening / closing device for a railway vehicle according to a second embodiment is inserted into an insertion hole;

FIG. 5 is an enlarged sectional view of a latch member according to a third embodiment.

FIG. 6 is a plan view of a conventional lid opening / closing device.

FIG. 7 is a sectional view of another conventional lid opening and closing device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Vehicle main body 2 ... Opening 4 ... Lid body 12, 56 ... Support shaft 24, 26, 50 ... Insert hole 28, 30, 54 ... Slit 33 ... Stopper mechanism 36, 62 ... Latch member

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int. Cl. ⁷ , DB name) B61D 17/00

Claims (2)

(57) [Claims] 1. A railway vehicle lid opening / closing device for supporting a lid closing an opening on a bottom surface of a railway vehicle body so as to be openable and closable, comprising: Is provided so as to be swingably inserted, and a part of the fulcrum shaft on the circumference thereof is smaller than its diameter.
A flat portion notched in width is formed, and the fulcrum shaft is flattened when the lid is opened at a predetermined angle.
From a direction parallel to the vehicle and approaching the vehicle body
A slit that can be inserted from the direction is connected to the insertion hole, and a latch member that regulates swinging of the lid around the fulcrum axis is provided when the lid is closed. Lid opening and closing device for railway vehicles. 2. The apparatus according to claim 1, further comprising a stopper mechanism for restricting swinging of the lid in a further opening direction when the lid is opened at a predetermined angle. Lid opening and closing device for railway vehicles.