JP2011088467A - Window opening/closing device of cab in railroad vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a window opening/closing device of a cab in a railroad vehicle having a strong and durable opening/closing mechanism of a window of a driver's seat or a conductor's room, facilitating opening/closing action, and being hard to break down. <P>SOLUTION: A structure of the inside wherein an inner wall is removed is indicated. The window opening/closing device is assembled in a window frame 1a of a door 1, and a glass door 2g is fitted with a window 2 which opens/closes (vertically). A lateral direction guide 3 is fixed on a lower side of a lateral frame 2a provided on the lower side, and a vertical direction guide 4 making the lateral direction guide 3 slide in a vertical direction is provided in the vertical direction of the window frame 1a. A rotation arm 6 is rotatably disposed about an arm fixing shaft 5. A window balance apparatus 7 for balancing the window 2 which opens/closes (vertically) is installed near a center part of the window frame 1a. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a window opening / closing device for opening and closing a window of a driver's cab or a conductor's cab of a railway vehicle in a durable and long-lasting manner and smoothly.

  Railroad vehicles such as trains are equipped with openable windows on both sides in order to capture light from the outside in the cabin, change the air, or check the departure or stoppage of the vehicle in the driver's seat (conductor). . This open / close window is usually a “fall window” so that it can be easily opened and closed up and down, but this “fall window” is a balancer such as a spring, fluid cylinder, or actuator as a mitigation means so that it does not take too much weight when opening and closing. A device is used.

  As a conventional balancer device for opening and closing a window, the window can be moved up and down within a frame, an arm is arranged at the lower part of the window, the lower part of the window is supported by the upper end of the arm, and the lower end of the arm is attached. The frame is rotatably connected to one side of the frame, a support member is fixed to the frame portion below the arm, and a plurality of upper shaft holes are appropriately spaced in the longitudinal direction of the arm in the middle portion of the arm. The support member is formed with a long hole-like upper hole having a horizontal corrugated surface on the lower side, and an urging force for urging the arm upward between the arm and the support member A window balancer device has been proposed in which a means is engaged with the front end of the upper end and the lower end is engaged with the corrugated surface (Patent Document 1).

  As the most convenient weight reducing means, an electric window opening / closing device that can be operated by a weak woman or child is known. However, when an object or a part of the human body is caught in the middle, it is difficult to reverse the driving device because there is a reduction device for the driving device by an electric motor even if it is reversed by human power. Therefore, an apparatus that switches between electric drive and human drive using an electric clutch is disclosed (Patent Document 2).

  The window opening / closing mechanism using gas spring urging means, fluid cylinders, actuators, etc. cannot be repaired easily if a problem occurs due to gas leakage, etc., and it can also be used for many window opening / closing devices. If you do, the probability of failure will also increase. On the other hand, the window opening and closing mechanism of an electric drive mechanism using an electric clutch as a drive mechanism switching has a relatively complicated structure and a large number of parts, so that the installation becomes complicated. There is a problem in operability.

JP-A-2004-211497 JP 10-317798 A

  Conventionally, a window opening / closing device as shown in FIG. 4 may be used for a window of a driver's cab or a conductor's cabin (the figure shows a state in which the window 20 is closed). The opening / closing window 20 has an arm shaft fixing tool 25 fixed to one side of the central portion of the outer frame 22 of the door, and an upper arm 26a is pivotally mounted. A roller 29 is attached to the upper end of the upper arm 26a. The roller 29 is rotatably mounted, and the roller 29 moves in the groove 23 a in the lateral guide 23. Further, in the vicinity of the upper arm 26a of the arm shaft fixture 25, one end of the lower arm 26b is attached so as to pivot around the shaft 25a with respect to the upper arm 26a. Further, the other end of the lower arm 26b is rotatably attached to the link 21a by a shaft. The other side of the link 21a is connected to a link 21b that engages a hook 28a of a coil spring 28 installed at the lower part of the outer frame 22 of the door so as to be relatively rotatable.

  Further, on both sides of the end portion of the window 20, vertical guides 24, 24 are fixedly installed in the vertical direction provided with grooves similar to the lateral guide 23. That is, when a conductor or the like opens this window, the upper arm 26a rotates about the axis 25a of the arm shaft fixing tool 25 together with the descending window 20, and the roller 29 moves from the groove 23a of the lateral guide 23 to the vertical guide. It moves to the groove of 24 and descends. Then, the upper arm 26a descends to the lower end as shown by an imaginary line. On the other hand, in the lower arm 26b, when the upper arm 26a descends to the lower end portion, the link 21b that locks the hook of the coil spring 28 is locked in a state where the coil spring 28 is pulled (stretched state). In this case, the link mechanism plays a role of stopping and stabilizing at an arbitrary position of the descending window 20.

  As described above, the upper arm 26a reaches the lower end and the window is opened. On the other hand, when closing the window 20, when the lowered window 20 is raised, the upper arm 26 a is also raised together with the window 20. In this case, the urging force acts on the upper arm 26a from the expanded state to the contracted state through the link mechanism so that the coil spring 28 returns to the original state, so that the window closing force is easily assisted by assisting the window closing force. Can be closed.

  The window opening / closing mechanism as shown in FIG. 4 has a relatively simple configuration and is an extremely convenient opening / closing mechanism that does not require a large force even when the window is closed. However, there is a problem that the coil spring is fatigued and easily damaged while opening and closing repeatedly. Such breakage of the coil spring cannot be easily repaired, and it takes time to repair unless the vehicle is moved to the factory. In addition, there are problems that it takes time for inspection because there are at least four open / close windows in the driver's seat and the conductor's compartment on both sides of the train.

  The present invention has been made in order to cope with the above-described problems, and has a durable and long-lasting opening / closing mechanism for a driver's seat and a driver's compartment window, and an opening / closing operation of a railway vehicle's driver's cab that is easy and easy to operate. The object is to provide a device.

According to the first aspect of the present invention, a window opening and closing device for a cab of a railway vehicle includes a lateral guide 3 having a groove 3a, and a longitudinal guide 4 that is fixed to an inner wall by sliding the lateral guide 3 in the longitudinal direction. An arm fixing shaft 5 provided in the vicinity of the center portion of the window frame 1a on one side, and a roller 9 that rotates around the axis of the arm fixing shaft 5 and is fitted into the groove 3a of the lateral guide 3 at the end. A rotatable arm 6 rotatably attached, a window balancer 7 using a plurality of coil springs 8 provided near the center of the window frame 1a,
A link mechanism 11 in which the window balancer 7 and the rotary arm 6 are connected in the vicinity of the arm fixing shaft 5 is provided.

    If the window opening and closing device for the cab of the railway vehicle according to the present invention is used as the above-mentioned means, since a large number of coil springs are used, it becomes strong against repeated forces and does not break easily. Also, since it lasts longer, the number of failures can be greatly reduced, making maintenance easier. Furthermore, the structure is also a window balancer with a large number of coil springs attached, so that the assembly can be replaced and the replacement is easy. Furthermore, since the coil spring is closed from the opened state as in the prior art, the force to move up and down is not increased, and the coil spring can be opened and closed relatively easily.

It is a general | schematic front view of the window opening / closing apparatus of the cab of the railway vehicle of this invention. It is a partial enlarged view of the window balancer part of FIG. It is a figure of the state which lowered the raising / lowering window and opened the window in the driver's cab (conductor) which attached the window opening / closing apparatus of the driver's cab of the railway vehicle of the present invention. It is a general | schematic front view of the window opening / closing apparatus of the driver's cab of the conventional railway vehicle.

  Hereinafter, specific embodiments of the present invention will be described with reference to FIGS. In these drawings, the same reference numerals are given to constituent members having the same functions as those of the conventional example shown in FIG.

  FIG. 1 is a schematic configuration diagram of a window opening / closing device for a driver's cab of a railway vehicle according to the present invention, showing an internal configuration with an inner wall removed. This window opening / closing device is incorporated inside the window frame 1a of the door 1, but a glass door 2g is fitted to the window 2 that opens and closes (up and down), and a lateral guide is provided below the horizontal frame 2a provided on the lower side. 3 is fixed, and a vertical guide 4 for sliding the horizontal guide 3 in the vertical direction is provided in the vertical direction of the window frame 1a, and the rotary arm 6 is arranged to rotate around the arm fixing shaft 5. A window balancer 7 that balances the window 2 that opens and closes (up and down) is installed near the center of the window frame 1a.

  That is, the window opening / closing device includes a lateral guide 3 having a groove 3a, a longitudinal guide 4 fixed to the inner wall 10 by sliding the lateral guide 3 in the longitudinal direction, and a central portion of the one-side window frame 1a. An arm fixing shaft 5 provided in the vicinity, and a rotating arm 6 rotatably attached to a roller 9 that rotates about the axis of the arm fixing shaft 5 and is fitted into the groove 3a of the lateral guide 3 at the end; A window balancer 7 provided near the center of the window frame 1a and using a plurality of coil springs 8, and the window balancer 7 and the rotating arm 6 are connected to the window balance in the vicinity of the arm shaft fixed shaft 5. A link mechanism 11 connected to the container 7.

  With the above configuration, when the window 2 is opened, when the window 2 is pushed with a handle or the like (not shown), the rotating arm 6 rotates around the arm fixing shaft 5 and rolls the roller 9 at the end while laterally guiding it. 3 is moved downward in the longitudinal guide 4.

  FIG. 2 is a partially enlarged view of the window balancer 7 portion of FIG. The window balancer 7 is composed of a large number of coil springs 8, 8,... And spring fixtures 12, 13 for fixing these coil springs 8, 8,. Is fixed to a fixture 14 provided on the mounting plate by a male screw 15 and a nut 16, and the other spring fixture 13 is pivotally attached to the link 11b and the link 11c via the link 11a so as to be axially rotatable. The rotating arm 6 and the window balancer 7 are connected via a link mechanism 11 (11a, 11b, 11c). In this case, even if the tension changes according to the extension of the coil spring 8, the force for urging the rotary arm 6 upward by the action of the link mechanism 11 does not change much.

  FIG. 3 shows a state in which a window 2 to be opened / closed is opened and a window is opened in a driver's cab (conductor) equipped with a window opening / closing device for a driver's cab of the present invention. That is, when the window 2 is pushed downward, the end of the rotating arm 6 rotates around the arm rotation shaft 5 and the roller 9 at the tip of the rotating arm 6 rolls in the groove 3 a of the lateral guide 6. Next, the horizontal guide 3 descends while sliding on the vertical guide 4. In this case, the link 11a rotates counterclockwise and the coil springs 8, 8,... Of the window balancer 7 are extended. Further, the window balancer 7 converts the torque 11 of the link 11b by the rotating arm 6 and the arm fixing shaft 5, but the tensile force changes according to the extension of the coil springs 8, 8,. The force for urging the window 2 upward by the action of the link mechanism does not change much. On the other hand, when the window 2 is closed, the force that urges the coil springs 8, 8,... In this way, the window 2 can be closed without applying too much force.

  According to the window balancer 7 used in the present invention, since a large number of coil springs 8 are used, the durability is increased and it is not easily broken. Therefore, the number of failures is reduced, and the number of repairs and maintenance can be reduced.

DESCRIPTION OF SYMBOLS 1a Window frame 2 Window 3 Lateral guide 3a Groove 4 Vertical guide 5 Arm fixed shaft 6 Rotating arm 7 Window balancer 8 Coil spring 9 Roll 11 Link mechanism

Claims (1)

  A lateral guide having a groove, a longitudinal guide that is slid in the longitudinal direction and fixed to the inner wall, an arm fixing shaft provided near the center of the window frame on one side, and Window balance using a rotating arm that rotates about an axis and that is rotatably attached to a groove of the lateral guide at the end, and a plurality of coil springs 8 provided near the center of the window frame And a window opening / closing device for a cab of a railway vehicle, comprising: a linking device; and a link mechanism in which the window balancer and a rotating arm are connected in the vicinity of the arm fixing shaft.

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