JPS5815217Y2 - Folding door opening/closing device for car 6598 - Google Patents

Description

[Detailed description of the invention] This invention is a three-panel folding door that can be used as the entrance/exit door of a bus, the passenger or cargo door of a railway vehicle, the door for dropping cargo from the fuselage of an aircraft, or the entrance/exit door of a building. This relates to improvement of the door interlocking mechanism.

Tri-folding doors have existed for a long time.

In other words, when this type of three-panel folding door is used for passenger entrances and exits of vehicles, especially buses, in addition to widening the opening width, the width of each field that makes up the three-panel folding door is narrower. This has advantages such as being able to set the intermediate steps completely between the entrance and exit, but on the other hand, there are various problems with the interlocking mechanism.

For example, what is described in Japanese Utility Model Publication No. 50-36347 has a roller 20 attached to the inner upper end of the other end, as shown in FIGS. 3 and 4 of the drawings attached to this application.
One end of the intermediate folding door 6 is attached to one wall of the entrance/exit opening 1 through a hinge 7 so that one end of the intermediate folding door 6, which has a guide fitting 22 attached to its lower end that engages with a holding frame 23 provided on the floor surface 10 when the door is closed, can be bent inward of the vehicle body. The opening/closing door 3 is attached to the opening/closing door 5 attached to the body 2, and the opening/closing door 3 is attached to the other wall 2 of the entrance/exit opening 1 in correspondence with the intermediate folding door 6. axis 1
4, 15 to the lintel 11, and its lower end supported on the floor surface by pivot hinges 8, 9, so that the opening/closing door 5, which includes the opening/closing door 3 and the intermediate folding door 6, opens inward of the vehicle. Attach turnbuckles 19 to the suspension hinge shafts 14 and 15 of 3°5 so that the ends thereof face toward the outside and inside of the vehicle body, respectively.
The gist is that levers 16 and 17 connected by links 18 are fixed, and a rail 21 for guiding the roller 20 is provided on the lintel 11 so as to follow the trajectory of the roller 20 as the folding door opens and closes. However, the folding door opening/closing device described in this publication has the following drawbacks.

(1) Lever 16 connected to hanging hinge shafts 14 and 15
The tip of the lever 17 is directed toward the outside of the vehicle body, and the tip of the lever 17 is directed toward the inside of the vehicle body, and the tip becomes a dangerous protrusion.

(2) In order to eliminate the above-mentioned protrusion to the outside of the car body, the door must be moved inward to the car body. In order to solve this problem, unnecessary space is required, and the link mechanism must be mounted at a high place, which requires a wasteful design.

(3) Even when the door is completely closed, a door without a lock tends to wobble in the opening/closing direction.

(4) If the above-mentioned rattling is to be eliminated, locking devices must be installed in two or more locations, which causes operational inconvenience, or an interlocking mechanism for the locking device must be provided in addition to the interlocking mechanism for the door. However, the mechanism becomes complicated.

Therefore, the present invention was developed in view of the above-mentioned conventional problems.It eliminates the protrusions facing outward from the vehicle body, ensures the safety of passengers getting on and off the vehicle, secures a wide space for getting on and off the vehicle, and has a triple-folding door type. Regarding doors, by simply installing a locking device on one door, it is possible to prevent rattling of not only that door but also the other two doors, and to simplify the locking operation without requiring a complicated locking mechanism. There is no problem with opening/closing the door due to muddy water, etc., and the opening/closing operation is extremely easy.

Therefore, in the present invention, a shaft formed protruding from the upper and lower edges of one of the two opening/closing doors on both sides is fitted to the upper and lower edges of the entrance/exit opening of the vehicle body on both sides, so that both opening/closing doors can be freely rotated. none,
One end of the intermediate folding door is hinged to the free end side of one of the opening/closing doors, and a guide roller attached to the upper edge of the intermediate folding door near the other end is guided by a guide rail provided along the upper edge of the entrance/exit opening. The intermediate folding door follows the rotation of one of the opening and closing doors, and the angle between the free end side and the upper or lower edge of the opening and closing door is set at an angle α from the entrance/exit opening to the axis of the opening and closing door. The base end of link a formed inside the body is fixed, and the base end of link d, which extends on the free end side or along the upper or lower edge of the other door, is fixed to the shaft of the other door. The free end of a and one end of link b are pivotally connected at pivot joint A, the other end of link b and the free end of link C are pivotally connected at pivot joint B, and the base end of link C is connected to the entrance/exit opening. Pivotally connected at the pivot point P of the vehicle body located at the
The free end of link d and one end of link e are pivotally connected at a pivot joint, the other end of link e and the free end of f are pivotally connected at pivot joint E, and the base end of link f is connected to an entrance/exit opening. An intermediate link h is pivotally connected to a pivot point R of the vehicle body located inward from the vehicle body, its base end is located at the entrance/exit opening, and the intermediate link h is pivotally connected to a pivot point Q of the vehicle body. One end of the link g is pivotally connected to the pivot point C, the other end of the link g is coaxially connected to the pivot point E, and the intermediate link h
One end of the link i is pivotally connected at the pivot point V in the middle of the link i.
The other end is pivotally connected to the middle of the link C by a pivot point U, and each link a=i is arranged in the ceiling formed above the entrance/exit opening or under the footboard of the entrance/exit opening, Said 2
One of the two opening/closing doors and the intermediate folding door is provided with a locking device that can engage with the upper edge or the lower edge of the entrance/exit opening, and the two opening/closing doors and the intermediate folding door are located on both sides of the entrance/exit opening. When the shafts are in a straight line and the entrance/exit opening is closed, the pivot parts E and R are in a straight line, and the shaft of one opening/closing door and the pivot parts A and B are in a straight line. By providing such an opening/closing device for a vehicle folding door, the intended purpose is achieved.

The present invention will be described below with reference to illustrative embodiments.

Reference numeral 31 denotes an opening/closing door provided on one wall 35a of the entrance/exit opening 34 so as to open inward of the vehicle body, and shafts 36a and 37a provided on the upper and lower edges of the door close to the wall 35a are connected to the vehicle body. It is pivotably attached to the.

Reference numeral 32 denotes an opening/closing door provided on the other wall 35b of the entrance/exit opening 34 so as to open inward of the vehicle body, and shafts 36b, 37b provided on the upper and lower edges of the door near the wall 35b.
is pivotally attached to the vehicle body.

33 is an intermediate folding door, one end of which is attached to the free end side of the opening/closing door 32 by a hinge 38, and a guide rail 3 provided along the upper or lower part of the entrance/exit opening 34.
A guide roller 40 that rotates and slides while fitting into the
It is rotatably attached to the upper edge or lower edge of the other end of the intermediate folding door 33, and is folded inward following the movement of the opening/closing door 32,
Alternatively, the opening/closing door 32 is configured to open and close as an extension of the opening/closing door 32.

41 is provided on the vehicle interior 44 side of the intermediate folding door 33,
It is a locking rod equipped with a locking lever 42 that can be raised and lowered and can hold the raised position, and when the three-folding door type field is closed, the guide rail 3
It is adapted to be engaged with a lock closing portion 43 provided at 9.

45 is a handle, and the handle 45 and the locking rod 41. The locking lever 42 and the locking portion 43 constitute a locking device.

46 is a magnet, 47 is a step board at the entrance and exit, and 48 is a floor surface.

The shafts 37a and 37b provided below the husband and wife of the opening/closing door 31, 32 configured as described above are made to protrude below the footboard 47 of the entrance/exit.

The base end of a link a is fixed to the shaft 37b of one of the opening/closing doors 32, and the link a forms an angle α with the opening/closing door 32.

A link d is fixed to the shaft 37a of the other opening/closing door 31 so that the base end of the link d is in the same plane as the lower edge of the base end of the opening/closing door 31.

At the free end of the link a, one end of the link b is connected to the pivot point A.
The other end of the link B is pivotally connected to a pivot point B at the free end of the link C, and the base end of the link C is pivotally connected to a pivot point P on the vehicle body, for example, the bottom plate of the vehicle body. ing.

The pivot portion P is provided at a position where the link C can freely rotate about the pivot portion P as a fulcrum.

Further, one end of the link e is pivotally connected to the free end of the link d by a pivot joint, and the other end of the link e is coaxially connected to the pivot joint E of the free end of the link f with the other end of the link g. It is pivoted to.

The base end of the link f is attached to the pivot point R of the vehicle body, for example, the bottom plate of the vehicle body.
It is pivoted to.

The pivot portion R is located at a position where the link f can freely rotate about the pivot portion R as a fulcrum.

Further, one end of the link g is pivotally connected to a pivot portion C at the free end of the intermediate link h.

The base end of the intermediate link h is pivotally connected to a pivot point Q of the vehicle body, for example, the bottom plate of the vehicle body.

The pivot portion Q is provided at a position where the intermediate link h can freely rotate about the pivot portion Q as a fulcrum.

Further, one end of a link i is pivotally connected to the intermediate portion of the intermediate link h at a pivot portion V, and the other end of the link i is pivotally connected to a pivot portion U at the intermediate portion of the link C.

As a result, links a and b, links b and C, link g and intermediate link h, links d and e, links e and f, link C
and i, link i and intermediate link h are rotatable within the same plane.

The above link mechanism is located below the footboard 47 of the entrance.
The footboard 47 is formed so as not to protrude from the entrance/exit opening 34 to the outside of the vehicle.

In addition, in order to absorb manufacturing errors of the link, adjustment lengths are provided in the longitudinal direction of the link at the positions of the pivot joint U and the position of the pivot joint ■ of the link i, and the position of the pivot joint C of the link g. A hole (not shown) is provided so that the length and pivot position of the link can be adjusted, and after adjustment, the link is fixed in its longitudinal movement and is movable only in the rotational direction.

Next, the operation of the present invention will be explained.

The locking rod 41 is operated by operating the locking lever 42.
is pulled down to release the locked state between the rod 41 and the lock closing portion 43.

A force in the opening direction is applied to the opening/closing door 32 or the intermediate folding door 33 manually or mechanically.

(This can be done from inside the car or from outside the car.

) The opening/closing door 32 rotates around shafts 36b and 37b, the intermediate folding door 33 is interlocked with a hinge 38, and the guide roller 40 attached to the upper edge of the intermediate folding door 33 moves around the guide rail 39.
The intermediate folding door 33 is also opened by rotating and sliding along the steps, and is folded onto the step board 47 of the entrance and exit in a state shown by the chain line in FIG. 2, overlapping with the opening/closing door 32.

At this time, as shown in FIG. 2, link a rotates around the shaft 37b, and its pivot point A moves to point X indicated by the dotted line, pulling link b, which is pivoted to link a, and The pivot point B with respect to the link C moves to B' indicated by the dotted line, centering on the pivot point P at the proximal end of the link C.

Therefore, the pivot point U between link C and link i also moves to U'.

This movement is transmitted to the pivot point (2) by the link i, and the pivot point V rotates around the pivot point Q to the position V.

Therefore, the pivot point C between the intermediate link h and the link g is also C'
Move to.

This movement pushes the link g, giving the pivot point E a force to move in the N direction, causing it to move to E'.

Due to this force, the links e and f, which were in a straight line, move in the direction of being folded at the pivot joint E', and the link d, which is connected at the pivot joint, rotates around 37a, and the pivot joint Riha D
′ is located.

This rotation opens the door 31, which has been locked by the magnet 46 attached to the upper edge of the door 31, toward the inside of the vehicle.

In other words, when the three-panel folding door is fully opened, the pivot points of each link are A', B', C'C', E and E'.
ni, U HaU'ni, ■HaV'ni move respectively.

The operation of each link when closing the three-panel folding door is the opposite of the operation described above.

That is, a force in the closing direction is applied to the opening/closing door 3L32 or the intermediate folding door 33 manually or mechanically.

The opening/closing door 32 rotates around the upper shaft 36b and the lower shaft 37b to the end face of the opening, and the intermediate folding door 33 is also interlocked by a hinge 38, and the guide roller 40 attached to the upper edge of the intermediate folding door 33 is attached to the guide rail. 39, the intermediate folding door 33 is also closed, and the intermediate folding door 33 is positioned at the entrance/exit opening 34 in a straight line with the opening/closing door 32 along the outer surface of the vehicle body.

At this time, the link a having an α angle with the opening/closing door 32 is the axis 37b.
The pivot point X moves to A.

As a result, link b, which is pivotally connected to link a, is pulled,
Link C, which is pivotally connected to link b, rotates around a pivot point P of the vehicle body, pivot point B' moves to B, and links a and b are positioned in a straight line.

Due to the rotation of the link C, the pivot point V' of the link i, which is pivotally connected to the link C, moves to V, and as a result, the intermediate link h pivots around the pivot point Q of the vehicle body. The wearing part C' is C
Therefore, the link g is pulled and the pivot point E' moves to E, and the link f, which is coaxially connected to the pivot point E', also rotates around the pivot point R of the vehicle body.

As a result, the link d rotates around the shaft 37a,
The pivot point D' moves to D, and the opening/closing door 31 also rotates around the shafts 36a and 37a to close the entrance/exit opening 34.
In this state, the pivot parts E and R on the opening/closing door 31 side are located in a straight line.

Entrance/exit opening 34 with opening/closing doors 31, 32 and intermediate folding door 33
If the door is fully closed and locked with the locking device provided on the intermediate folding door 33, the closed state will be maintained, and the opening/closing door 31 will also have its shaft 37a fixed to the link d, and the link d will be connected to the links e and f. Rotation is prevented by the pivot point R of the vehicle body,
The pivot points E of the links e, f, and g are also connected to the link g and the intermediate link h.
, since movement is blocked by link C2b,a,
The closed state is maintained.

In the embodiment, an example is shown in which the door opening/closing link mechanism is provided at the bottom of the footboard 47 of the entrance/exit, but it may be installed on the ceiling of the room.

As described above, the present invention allows a three-panel folding door to be opened and closed in conjunction with a link mechanism, and the link mechanism is disposed under the footboard of the entrance or exit or on the ceiling of the vehicle body, and Since the door does not protrude outward from the doorway opening side beyond the rotation axis of the door, it is possible to secure as wide a space for getting in and out of the doorway as possible, and to ensure the safety of passengers getting in and out of the vehicle. It can be measured.

Further, a locking device is provided on either the opening/closing door or the intermediate folding door, and when the opening/closing door connected by the link mechanism is closed, the locking device locks the opening/closing door, and the intermediate folding door side link is connected from the intermediate link to the intermediate folding door side. The link connected to the link is one link on the opening/closing door side, and the link connected from the intermediate link to the opening/closing door side link regulates the movement of each link, so the movement of each link is controlled in the opening direction in each field. The fully closed state is maintained even if external force is applied.

Therefore, the three-panel folding door is connected by a link, and the entire three-panel folding door can be locked by simply installing one locking device on either of the opening/closing doors, making locking operations easy. can.

Furthermore, since no sliding mechanism is provided in the area where muddy water is present, there is no malfunction due to muddy water, etc., and the opening/closing operation of the three-panel folding door is easy.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing the three-panel folding door of the present invention as seen from the inside of the car, Fig. 2 is a plan view of the same link mechanism, and Fig. 3 is a plan view of the same link mechanism.
The figure is a front view of a conventional folding door opening/closing device, and FIG. 4 is a plan view of FIG. 3. 31. 32 is an opening/closing door, 33 is an intermediate folding door, and 36a. 36b, 37a, 37b are axes, a, b, c, d. e, f, g, i are links, h is intermediate link, A. B, C, D, E, U, V are the pivot points of the link, P. Q and R are the pivot points between the link and the vehicle body.

Claims (1)

[Scope of utility model registration request] A shaft protruding from one of the upper and lower edges of the opening/closing door 31.32 on both sides is fitted to the upper and lower edges on both sides of the entrance/exit opening 34 of the vehicle body, thereby making the opening/closing door 31.32 rotatable; One end of the intermediate folding door 33 is hinged to the opening/closing door 32, and the intermediate folding door 33
A guide rail 3 provided along the upper edge of the entrance/exit opening 34 with a guide roller 40 attached to the upper edge near the other end.
9, so that the intermediate folding door 33 follows the rotation of the opening/closing door 32, and the entrance/exit opening is made so that the free end side or the upper edge or the lower edge of the opening/closing door 32 forms an angle α with the axis of the opening/closing door 32. The base end of link a formed inside the vehicle body from 34 is fixed, and the base end of link d extending along the free end side or the upper edge or lower edge of the openable door 31 is fixed to the axis of the openable door 31. , link a
The free end of link b and one end of link b are pivotally connected at pivot joint A, the other end of link b and the free end of link C are pivotally connected at pivot joint B,
The base end of the link C is pivotally connected to the pivot joint P of the vehicle body located at the entrance/exit opening 34, the free end of the link d and one end of the link e are pivotally connected to the pivot joint, and the other end of the link e is and the free end of the link f are pivotally connected at the pivot joint E, the base end of the link f is pivotally connected to the pivot joint R of the vehicle body located inside the vehicle body from the entrance/exit opening 34, and the base end is connected to the entrance/exit opening 34. The intermediate link h located in the section 34 and pivotally connected to the pivot point Q of the vehicle body has its free end pivotally connected to one end of the link g at the pivot point C, and the other end of the link g is coaxial with the pivot point E. one end of the link i is pivotally connected to the middle of the intermediate link h at the pivot joint part (2), the other end of the link i is pivotally connected to the middle of the link C at the pivot joint part (U), and each The link a=i is arranged in the ceiling formed above the entrance opening 34 or under the footboard of the entrance opening 34, and one of the opening/closing doors 31, 32 and the intermediate folding door 33 is connected to the entrance opening 34. When a locking device that can be engaged with the upper edge or the lower edge is provided, and the opening/closing door 3132 and the intermediate folding door 33 are arranged in a straight line between the shafts located on both sides of the entrance/exit opening 34, the entrance/exit opening 34 is closed. , pivot joint, E, and R are in a straight line, opening/closing door 3
1. An opening/closing device for a folding door for a vehicle, characterized in that the shaft of No. 2 and pivot parts A and B are arranged in a straight line.