JP2018062220A - Handrail on double folding door for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a hand rail adaptable to a use standard as a passenger vehicle in terms of effective width of an entrance, even if installed to a hand door of a double folding door for a vehicle.SOLUTION: A fixed handrail 1 is provided at an upper part on the inner face D1 of a hand door Da, the fixed handrail 1 being downwardly and obliquely disposed when a folding door is opened, and a movable handrail 2 is provided which is continuous to the bottom end of the fixed handrail 1 and of which upper end 2a is pivoted on the inner face D1 of the hand door Da so as to be vertically swayed while keeping a parallel state to the inner face D1. On the inner face D1 of the hand door Da, beyond the movable range of the movable handrail 2, a drum is attached being energized in a winding direction of a wire 7, the drum fixing one end of the wire 7 of which other end is fixed to a suspending door, swaying so as to be able to freely wind up and unwind the wire 7 in a linked manner to an opening/closing operation of the folding door. The movable handrail 2 and the drum are linked via a link mechanism 22 which vertically suspends the movable handrail 2 corresponding to the sway of the drum when the folding door is in a closed state, and which vertically sways the movable handrail 2 so that the bottom end 2b side is externally projected and tilted in a downwardly inclined direction from the open side edge part a of the hand door Da.SELECTED DRAWING: Figure 8

Description

  The present invention relates to a handrail in a two-fold door provided at an entrance of a vehicle such as a bus.

  In Patent Document 1, in a two-fold door provided at the entrance of a vehicle, it is arranged in parallel with the inner surface of the hand door, and is moved up and down while maintaining the parallel state with the inner surface in conjunction with the opening / closing operation of the folding door. There is a handrail that moves vertically, and the balustrade stands upright in the closed state of the folding door, and in the opened state of the folding door, the lower end of the standing door protrudes obliquely downward from the open side end of the hand door and tilts. It is disclosed.

  According to this handrail, when the folding door is opened, the balustrade is tilted on the inner side surface of the hand door, and the lower end of the balustrade protrudes to the outside of the entrance / exit, thereby allowing the balustrade to pass through the entrance / exit from the inside of the vehicle. It can be slanted to the outside downward, so that the balustrade can always be used as a support for walking when getting on and off the vehicle, and it is safe to get on and off.

Japanese Patent No. 5265990

  However, in the handrail having the above structure, the folding door is in a use state in which the folding door is opened, and has a length enough to hang the balustrade obliquely from the inside of the vehicle through the entrance to the outside and below the inside of the hand door in the closed state of the folding door. In order to stand upright in the vertical direction, the folding door has a wide movable range, and the balustrade had to be attached to the outside of the balustrade sunk device that swings the balustrade up and down according to the opening degree of the folding door.

  Then, the balustrade device and balustrade will be placed on the inner side of the hand door, so the effective width of the entrance / exit when the folding door is open (the width of the part that can be used effectively as the entrance / exit) depends on the vehicle type. Some passenger cars cannot be adapted to the standard of use of 600 mm or more as a passenger vehicle, and the handrail having the above-described configuration cannot be attached.

  Therefore, in the present invention, it is intended to provide a handrail capable of adapting the effective width of the entrance to the use standard as a passenger vehicle by attaching the balustrade and its haunting device to the hand door without superposition. Yes.

In view of the above problems, the handrail in the two-fold door of the vehicle of the present invention is a two-fold door comprising a hand door and a fishing door provided at the entrance of the vehicle, and the folding door is opened above the inner side surface of the hand door. On the inner surface of the hand door so that it swings up and down while maintaining a parallel state with the inner side surface while being continuous with the lower end of the fixed railing and being inclined downwardly toward the entrance A movable balustrade pivoted at the upper end is provided, and on the inner surface of the hand door, outside the movable range of the movable balustrade, one end of the wire fixed to the fishing door is fixed and the folding door is opened and closed. A drum that swings so that the wire can be wound and unwound in conjunction with it is urged in the winding direction of the wire, and the movable balustrade and the drum are in the closed state of the folding door according to the swing of the drum. Hanging vertically down, with the folding door open, the lower end when drooping Characterized in that the the interlocking via the link mechanism for vertically swinging so as to tilt with outwardly projecting obliquely downward from the open end portion of the hand door.
In addition, it is desirable that the movable balustrade is inclined obliquely downward while the folding door is open, and the lower end is bent downward with a predetermined obtuse angle.

In short, the present invention is a two-fold door composed of a hand door and a fishing door provided at the entrance of the vehicle, and is inclined downward toward the entrance with the folding door open above the inner surface of the hand door. Because there is a fixed balustrade and a movable balustrade that is pivotally attached to the inner side surface of the hand door so as to swing up and down while maintaining a parallel state with the inner side surface while continuing to the lower end of the fixed balustrade Because the movable part of the handrail is only a movable balustrade shorter than the conventional one, the movable part (movable balustrade) can be reduced in size, and the movable range can be reduced as compared with the conventional one, and therefore the movable balustrade intruder device can be reduced in size. Aside from the conventional arrangement of the haunting device and the movable balustrade on the inner surface of the hand door, the haunting device can be placed outside the movable range of the movable balustrade, which is different from the arrangement location of the movable balustrade. Effective width of entrance / exit in open state It can be extended compared to the conventional.
And on the inner surface of the hand door, outside the movable range of the movable balustrade, as one of the movable balustrades, the other end is fixed to one end of the wire fixed to the fishing door, and the folding door is opened and closed. The drum that oscillates freely to wind and unwind the wire is urged in the winding direction of the wire, and the movable balustrade and the drum are vertically long with the folding door closed according to the oscillation of the drum. Because it is suspended and connected via a link mechanism part that swings up and down so that the lower end side when drooping is tilted downward and tilts downward from the open side end part of the hand door when the folding door is open The drum is swung by pushing and pulling the wire according to the opening / closing operation of the folding door, and the movable balustrade can be swung up and down via the link mechanism.
Therefore, there is no need for a dedicated drive source for moving the movable balustrade at the entrance and exit, and the above described hauling device for operating the movable balustrade can be configured more simply than before, and the movable balustrade and its hauling device can be connected to the inner surface of the hand door. Without being projected so much, it can be flat and fit in a compact arrangement, and the effective width can be further expanded.
Also, when the folding door is in the open state, the movable balustrade can be protruded obliquely outward from the inside of the vehicle to the outside of the entrance / exit continuously from the fixed balustrade fixedly arranged on the inner surface of the hand door. The movable balustrade and the fixed balustrade can be obliquely passed down to the outside through the entrance and exit, and can be used as a handrail for supporting walks at all times when getting on and off the vehicle and can be safely boarded and exited.
Moreover, according to the present invention, the movable balustrade can be configured as a handrail that is easier to use by making the slope different from that of the fixed balustrade, and the movable balustrade that can be operated can be downsized as described above. In comparison, it is possible to reduce the weight, and it is difficult for unpleasant noises due to vibrations during traveling of the vehicle to occur.

  In addition, the movable balustrade is slanted obliquely downward with the folding door open, and the lower end is bent downward with a predetermined obtuse angle, so that the lower end of the movable balustrade is projected at an angle that is easier to grip from the entrance and exit when getting on and off, It is possible to get on safely as a support for walking by tilting upward slowly continuously, and on the other hand, when getting off, the movable balustrade gently tilts downward to the ground below the entrance Its practical effect, such as smooth and safe getting off, is significant.

It is a plane sectional view in the closed state of a folding door provided with the handrail concerning the present invention. FIG. 2 is a view taken in the direction of arrow X in FIG. 1. FIG. 3 is a view on arrow Y in FIG. 2. It is AA sectional drawing of FIG. It is a plane sectional view in the half open state of the folding door. FIG. 6 is a view on arrow X in FIG. 5. It is a plane sectional view in the fully opened state of the above folding door. FIG. 8 is a view taken in the direction of arrow X in FIG. 7.

An embodiment of the present invention will be described below with reference to the drawings.
The handrail according to the present invention is a hand door Da of a two-fold door FD composed of a hand door Da and a fishing door Db provided at an entrance G of a vehicle such as a bus, and is located above the inner surface D1 of the hand door Da. A fixed balustrade 1 that is inclined downward toward the entrance G in the opened state of the folding door FD (only the lower end side is shown for convenience of explanation in FIGS. 1, 5, and 7) and the lower end of the fixed balustrade 1 is continuous. In addition, a movable balustrade 2 having an upper end 2a pivotally mounted on the inner side surface D1 of the hand door Da so as to swing up and down while maintaining a parallel state with the inner side surface D1 is provided.

The folding door FD connects the hand door Da and the fishing door Db so as to be able to bend and stretch at the hinge H on the step S of the entrance / exit G, and pivotally attaches one side edge (fishing source) of the fishing door Db to the vehicle. Then, by connecting an automatic opening / closing device (not shown) mounted on the vehicle to the fishing door Db and swinging the fishing door Db, the fishing door Db and the hand door Da are bent and extended, and the entrance G is opened. Open and close.
Although not shown in the drawings, the upper and lower ends (step S) of the entrance / exit G are formed with concave grooves that are vertically parallel to the lateral sides thereof, and the open side end (one side edge) a of the hand door Da is formed in each of the concave grooves. 1 and 5 and 7, the open side end a side of the hand door Da is always on the same line (corresponding to the axis of the groove). The open / close state of the folding door FD is regulated so that it moves back and forth linearly.

Note that the folding door FD is not limited to the illustrated example, and may be provided on both the left and right sides of the entrance / exit G so as to be double-opened. In this case, of course, the handrail is attached to each hand door Da of the left and right folding doors FD. Provided.
The folding door FD may be manually opened and closed.

The fixed balustrade 1 is formed in the shape of a hollow round bar having a predetermined length, and downwards with a predetermined gradient from the hinge side end a1 side at the predetermined height position to the open side end a side on the inner surface D1 of the hand door Da. The upper end thereof is fixed to a fixing fitting 3 provided on the hinge side end a1 side on the inner surface D1.
Further, in the base 4 fixed on the inner surface D1 so as to cover the lower part of the window W, there is a protrusion on the upper part of the oblique side 4a inclined downward from the open side end a side to the hinge side end a1 side on the window W. The piece 4b is bent outward and the lower end surface of the fixed balustrade 1 is fixed to the protruding piece 4b.

The movable balustrade 2 is formed by bending and forming one end 2b side of a hollow round bar having a predetermined length into a “h” shape with a predetermined obtuse angle by a predetermined length, and forming the other end 2a with an upper end 2a. In Fig. 1, the axis of the fixed balustrade 1 is suspended at a suitable position on the extended line with a pivot 2c.
Thus, the movable balustrade 2 is mounted on the inner side surface D1 of the hand door Da so as to swing up and down while always maintaining a parallel state with the inner side surface D1.

  Further, a torsion coil spring 5 (hereinafter simply referred to as a spring 5) is externally fitted to the pivot 2c, and one end (not shown) of the spring 5 is hooked at an appropriate position of the movable balustrade 2 and the other end. Is hooked at an appropriate position of the base 4 and is biased in a direction (left-handed in FIG. 2) to maintain the hanging state of the movable balustrade 2.

The movable balustrade 2 is moved up and down in accordance with the opening of the folding door FD below the window W outside the movable range of the movable balustrade 2 on the inner side surface D1 of the hand door Da (inside the fan-shaped frame indicated by the one-dot chain line in FIG. 8). A retracting device 6 for the movable balustrade 2 to be operated is attached.
The retracting device 6 fixes the one end 7a of the wire 7 whose other end 7b is fixed to the fishing door Db, and swings the wire 7 so that the wire 7 can be wound and unwound in conjunction with the opening / closing operation of the folding door FD. Is urged in the winding direction of the wire 7 (clockwise in FIG. 2).

  On the inner surface D1 to which the drum 8 is attached, a flat box-shaped spring cover 10 containing a torsion coil spring 9 (hereinafter simply referred to as a spring 9) for urging the drum 8 is connected to the lower edge of the base 4. Fixed.

The spring cover 10 has a support shaft 11 projecting from the center of the front face arranged parallel to the inner surface D1, and passes through the center of the drum 8 formed in a fan-like plate shape close to a semicircle. The drum 8 can swing freely.
In the drum 8, one end 7a is fixed to the arc end 8a on the side close to the open end a of the hand door Da, and the end 7a side of the wire 7 is attached to a groove 8b formed in the arc peripheral surface. .

One end (not shown) of the spring 9 is hooked at an appropriate place (not shown) of the spring cover 10, and the other end (not shown) of the spring 9 enters the spring cover 10 from the back surface facing the inner surface D 1 in the drum 8. Hanging on 8c.
Since the spring retaining pin 8c swings together with the drum 8, an arc groove 10a corresponding to the track of the spring retaining pin 8c is formed in the front surface of the spring cover 10.

  The other end 7b side of the wire 7 extends to the fishing door Db side along the same horizontal line as the groove 8b located at the bottom of the drum 8, and the other end 7b is the hinge-side end b of the fishing door Db. It is fixed to a bracket 13 on a bracket base 12 joined in place on the inner surface D2 on the side.

  On the bracket base 12, a pair of upper and lower parallel plates 12a (for the convenience of explanation, only the front end side of the upper parallel plate 12a is shown and the rear side is broken) is horizontal. The base portion 13a of the bracket 13 is bolted on the bracket base 12 at the rear between the parallel plates 12a so that the position of the base portion 13a can be adjusted back and forth with a fixing bolt 14 that passes through a long hole provided in the base portion 13a. The other end 7b of the wire is fixed to the front protrusion 13b bent at the front end of 13a, and the rear protrusion 13c bent at the rear end of the base portion 13a has a support plate 15 installed between the rear ends of the parallel plates 12a. The tip of the adjusting bolt 16 to be inserted is screwed.

  Then, by loosening the fixing bolt 14 and moving the bracket 13 back and forth with the adjusting bolt 16, the tension state of the wire 7 can be adjusted, and after the adjustment, the other end 7b of the wire is positioned by tightening the fixing bolt 14. ing.

  The parallel plate 12a is disposed at a position where the front end protrudes slightly forward from the hinge side end a1 of the fishing door Db, and between the front ends, the wire 7 guides and supports the wire 7 corresponding to the bending and stretching of the folding door FD. The rear end of the guide 17 is pivotally attached.

The wire guide 17 is formed by arranging a pair of guide plates 17a formed in a curved shape with the bent portions protruding outward, and the wire 7 can be inserted through the front and rear end portions between the guide plates 17a. A pair of guide pulleys 18, 18 a, 19, 19 a are provided, and a guide pulley 20 for bending and guiding the wire 7 to the outside corresponding to the bent portion is also arranged at the bent portion between the guide plates 17 a. Yes.
The wire guide 17 is pivotally connected between the front ends of the parallel plates 12a by extending the shaft of the pulley 19 arranged inside the rear end portion thereof in the vertical direction.

The front end portion of the wire guide 17 is slidably mounted on a pair of upper and lower guide plates 21 that are horizontally arranged at the same height as each of the parallel plates 12a on the inner surface D1 of the hand door Da.
A long hole 21a is formed in the guide plate 21 at the front and rear thereof, and a trochanter (not shown) that protrudes above and below the front end of the wire guide 17 is disposed in the long hole 21a so as to be able to roll. The horizontal plate 12a and the guide plate 21 are connected via the wire guide 17.

  The movable balustrade 2 and the drum 8 are suspended vertically by the movable balustrade 2 in the closed state of the folding door FD according to the swing of the drum 8, and the lower end 2b side at the time of the drooping is opened at the folding door FD. It is linked via a link mechanism portion 22 that swings up and down so as to tilt outwardly and tilt outwardly from the open end a of Da.

  In the opened state of the folding door FD, the movable balustrade 2 formed in a “h” shape as described above is slanted obliquely downward with a gradient of about 10 degrees in the illustrated example, and the movable balustrade 2 protruding outward at this time The lower end 2b of the base plate is bent downward at a predetermined obtuse angle (about 130 degrees).

  The link mechanism 22 protrudes rearward of the upper end 2a of the drum 8 in a state where the arm 23 and the movable balustrade 2 are suspended in the drum 8 in a direction opposite to the arc circumferential surface formed with the groove 8b from the center. It comprises a link 25 that is pivotally connected to the projecting piece 24 provided.

  The link 25 and the arm 23 are connected by slidably attaching a trochanter 23a provided at the tip of the arm 23 to a long hole 25a drilled over a predetermined length from the lower end to the upper end of the link 25. doing.

  In addition, at the appropriate place on the inner side D1 of the hand door Da, the stop 26 that abuts and supports the upper end 2a side of the movable balustrade 2 that tilts (slowly tilts) when the folding door FD is fully opened, and hangs down when the folding door FD is closed. An abutment 27 is provided for abutting and supporting the rear part of the middle part of the movable balustrade 2.

  Note that reference numeral 28 shown in the figure indicates that the protruding piece 29 projecting outward at a suitable position of the inner flange constituting the groove 8b on the back side of the drum 8 is supported so as to abut when the folding door FD is fully opened. This is a stopper provided on the track and by cutting out the rear of the spring cover 10.

  Further, reference numeral 30 shown in the drawing indicates that the cylindrical body 31 protruding upward at a proper position of the upper guide plate 17a of the wire guide 17 is brought upright on the rear end of the upper guide plate 21 so as to contact and support when the folding door FD is fully opened. This is a stopper protruding rearward from the bent piece.

Next, the operation of the handrail configured as described above will be described with reference to the drawings.
First, in the closed (extended) state of the folding door FD, the hand door Da and the fishing door Db are on the same line, the parallel plate 12a and the guide plate 21 are in series, and the front end of the wire guide 17 is the front end of the long hole 21a. The drum 8 has the arc end 8a positioned at the upper limit, winds the wire 7, the arm 23 is moved backward, and the trochanter 23a at the tip is positioned at the lower end of the long hole 25a so that the link 25 is moved backward. The movable balustrade 2 is suspended vertically along the inner surface D1 via the link 25 (see FIGS. 1 to 3).

  At this time, the hanging movable balustrade 2 is abutted and supported by the stopper 27 by the urging force of the spring 5, and is firmly held so as not to be rattled by vibrations during traveling or the like.

  Then, when the fishing door Db is rotated in the opening direction to open the folding door FD by an automatic opening / closing device or the like, the wire 7 is pulled together with the wire guide 17 according to the rotation position of the fishing door Db, and the spring 5, The arm 23 is rotated counterclockwise together with the drum 8 against the urging force of 9, and the trochanter 23a at the tip of the arm 23 is slid toward the upper end of the long hole 25a. When it comes into contact, the movable balustrade 2 is swung upward through the arm 25 (see FIGS. 5 and 6).

  Thereafter, when the folding door FD is fully opened (bent), the front end portion of the wire guide 17 is located at the rear end of the long hole 21a, most of the wire 7 is fed out from the drum 8, and the arc end portion 8a is located at the lower limit. The eight protruding pieces 29 are supported by stoppers 28.

  At this time, the link 25 which has been bent with respect to the arm 23 so far extends along the extension line of the arm 23 and tilts (slowly) the movable balustrade 2 with a predetermined gradient, and the upper end 2a side of the movable balustrade 2 The upper part is abutted and supported by the stopper 26, and the cylindrical body 31 on the wire guide 17 is abutted and supported by the stopper 30, and the slanted state is firmly maintained (see FIGS. 7 and 8).

  Thus, the movable balustrade 2 is continuously connected to the fixed balustrade 1 that is inclined downward with a predetermined gradient from the hinge side end a1 side at the predetermined height position to the open side end a side on the inner side surface D1 of the hand door Da. A handrail can be configured to project outwardly and obliquely downward from the inside of the vehicle to the outside of the entrance / exit G, and to support the walk when getting on and off the vehicle by the continuous movable rail 2 and fixed rail 1 in this way.

  And the passenger can step into the step S of the entrance G without difficulty by grasping the lower end 2b that protrudes downward at an angle that is easier to grip than the entrance G, and follow the movable balustrade 2 that gently slopes upward after that. By making it easy to step into the car, you can enter the car safely by snuggling up to the fixed balustrade 1 that follows.

  Also, when getting off the train, walk along the fixed rail 1 from the inside of the car as the starting point of the support, and walk along the movable rail 2 that gently slopes down along the way. It is possible to safely get off from step S.

  In addition, when the folding door FD is closed from the fully opened state, the retracting device 6 and the link mechanism 22 operate in the reverse procedure to interlock with the closing operation of the folding door FD, and the folding door FD extends to close the entrance / exit G. In this state, the movable balustrade 2 hangs vertically along the inner surface D1 of the hand door Da, and the state is maintained as described above.

1 fixed balustrade 2 movable balustrade
2a Top edge
2b Lower end 7 Wire
7a one end
7b The other end 8 drums
22 Link mechanism
FD Orito
Da hand door
D1 Inner side a Open end
Db fishing door G boarding gate

Claims (2)

  In a two-fold door composed of a hand door and a fishing door provided at the entrance of the vehicle, a fixed rail that is inclined downwardly toward the entrance with the folding door open above the inner side surface of the hand door; A movable balustrade with an upper end pivotally mounted on the inner side surface of the hand door so as to swing up and down while maintaining a parallel state with the inner side surface is provided on the inner side surface of the hand door. In the movable range of the movable balustrade, one end of the wire fixed to the fishing door is fixed to the other end of the movable balustrade, and the drum that swings freely to wind and unwind the wire in conjunction with the opening / closing operation of the folding door The movable balustrade and the drum are vertically suspended with the folding door closed according to the swing of the drum, and the lower end side when the hanging is opened with the folding door open. Tilt by protruding outward and obliquely downward from the open end of the hand door Handrail in the two folding door of the vehicle, characterized in that tandem through the vertical swing is to linkage mechanism as that.   The handrail for a two-fold door of a vehicle according to claim 1, wherein the movable balustrade is slanted obliquely downward while the folding door is open and the lower end is bent downward with a predetermined obtuse angle.

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