JPH0246410B2 - IDOSHIKIGOTAIDENSHASENSOCHI - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to the structure of a mobile rigid overhead contact line device in which a portion of the overhead contact line is configured to be movable.

[Prior Art] For example, in a transportation system such as a subway that requires vehicles to run inside a tunnel, a structure is required that can shield the inside of the tunnel in preparation for an unexpected disaster. For example, in the case of a tunnel that passes under a riverbed, cracks may occur in the tunnel due to natural disasters such as earthquakes. In this case, river water may enter the tunnel due to the cracks, causing damage to the station premises and even the underground city. Similar problems can occur not only in tunnels that pass under rivers, but also in other tunnel sections due to groundwater gushing out.

Therefore, in the event of an unforeseen disaster, it is required to be able to partially shield the inside of the tunnel, but since rigid overhead contact lines are arranged in series, it is necessary to shield the affected area by, for example, doors or shutters. shielding is difficult. For this reason, conventionally, mobile rigid overhead contact line devices have been used that make it possible to move a part of the rigid overhead contact line that is fixed in series, thereby shielding the affected area with doors or shutters. has been done. In this conventional mobile rigid overhead contact line device, a part of the continuous rigid overhead contact line is replaced by a movable rigid overhead contact line placed on the side of the rigid overhead contact line, and this movable rigid overhead contact line is By moving the rigid overhead contact line, it is possible to shield the inside of the tunnel with doors, shutters, etc. In this type of mobile rigid overhead contact line system, the rigid overhead contact line that is normally movable is fixed with bolts, etc., and in the event of a disaster, a worker can move the mobile rigid overhead contact line suspended from the ceiling. The mobile rigid overhead contact line is moved by approaching the location, removing the bolts, etc., and then moving the mobile rigid overhead contact line by hand by the worker himself.
Furthermore, after moving, the mobile rigid overhead contact line was fixed again using bolts, etc.

[Problems to be Solved by the Invention] As described above, in the conventional mobile overhead contact line device, when moving the mobile rigid overhead contact line, the operator must go close to the rigid overhead contact line to be moved. Moreover, since rigid overhead contact lines are usually suspended from the tunnel ceiling, there were problems in terms of safety and workability. In particular, it is necessary to move this type of mobile rigid overhead contact line.
During disasters such as earthquakes, workers are forced to move and secure rigid contact lines under extremely dangerous conditions, so it is possible to move them even more safely and efficiently. It was hoped that a mobile rigid contact line device would appear.

Therefore, an object of the present invention is to solve the above-mentioned problems and to enable extremely safe movement.
It is an object of the present invention to provide a mobile rigid contact line device that can perform moving work quickly.

[Means for Solving the Problems] This invention was made as a result of intensive studies to achieve the above object, and its gist is to provide a guide and a movable device along the guide. A mobile rigid overhead contact line provided, a drive device for moving the mobile rigid overhead contact line, and a drive device and a mobile rigid overhead contact line for transmitting the driving force of the drive device to the mobile rigid overhead contact line. This is a mobile rigid overhead contact line device characterized by comprising a transmission mechanism connected between

The drive device may be equipped with a motor as a drive source, thereby making it possible to move the mobile rigid overhead contact line without input from an operator, and moving the rigid overhead contact line away from the affected area. Line driving is possible. However,
The drive device may be configured to be manually operated in addition to a motor, and may be configured to be driven either by a motor or manually.

Further, by providing a locking device, the movable rigid overhead contact line may be configured to be locked in a predetermined position after moving a predetermined distance. The rigid overhead contact line may be provided with a locking member that normally locks the rigid overhead contact line and releases the lock when the rigid overhead contact line is moved.

[Operation] In the present invention, a drive device is provided to move the mobile rigid overhead contact line, and the drive device and the mobile rigid overhead contact line are connected via a transmission mechanism. , the force required to move the mobile rigid overhead contact line is applied at a distance from where the mobile rigid overhead contact line is installed.

[Description of Embodiments] Fig. 1 is a bottom view schematically showing an embodiment of the present invention, and Fig. 2 is a partially cutaway perspective view showing a tunnel in which the embodiment shown in Fig. 1 is installed. It is a diagram.

Referring to FIG. 2, rails 2 are laid within the tunnel 1, and a vehicle 3 is configured to run on the rails 2. A rigid overhead contact wire 5 is suspended from the ceiling of the tunnel 1 via a support portion 4, and the vehicle 3 is supplied with electric power from the rigid overhead contact wire 5. The rigid overhead contact line 5 is provided in series inside the tunnel 1, but in order to make it possible to shield the inside of the tunnel 1 with a shielding door 6 at a position where it is necessary to shield, the door 6 is opened and closed. The wire is broken at the location where the wire is connected.

A movable rigid overhead contact line 11 extending parallel to the rigid overhead contact line 5 is provided at a position where the door 6 opens and closes. The mobile rigid overhead contact line 11 is also suspended from above by the support part 12;
It is also possible to move in the longitudinal direction of the rigid overhead contact line 11. This example concerns a device including this mobile rigid overhead contact line 11, and the following will be described below.
Figures 3 to 14 together with Figures 1 and 2.
This embodiment will be explained with reference to the drawings.

FIG. 3 is a cross-sectional view of the inside of the tunnel shown in FIG. 2. As is clear from FIG. 3, the movable rigid overhead contact line 11 is suspended on the side of the fixed rigid overhead contact line 5. The mobile rigid overhead contact line 11 is driven by a drive device 20 provided below, and the mobile rigid overhead contact line 11 and the drive device 20 are connected by a transmission mechanism 21. Transmission device 2
1 is provided to transmit the driving force obtained from the driving device 20 to the mobile rigid overhead contact line 11.

The drive device 20 includes a motor 201 as a drive source, as shown in a side view and a plan view in FIGS. 4 and 5. The drive shaft of the motor 201 is connected to a torque limiter coupling spring 202,
Further, via the switching clutch 203, the reduction gear 20
It is connected to 4. A manual handle 205 is also connected to the reducer 204 from the other side, and a link 21 of the transmission mechanism 21 is connected above the reducer 204.
1. Therefore, motor 201
The driving force or rotational driving force given by the manual handle 205 is reduced by the reducer 204,
The information is configured to be transmitted to link 211. Note that the switching clutch 203 is connected to the motor 201.
This is provided to intermittent the rotational driving force of the manual handle 205, and is disconnected when the manual handle 205 is used.

Returning to FIG. 3, the drive device 20 having the above configuration is connected to a link 211 of a transmission mechanism 21, and the link 211 is connected to a plurality of universal joints 212 that constitute the transmission mechanism 21.
and is connected to the mobile rigid overhead contact line 11 via links 213...215.

FIG. 6 is an enlarged front sectional view showing a connecting portion between the mobile rigid overhead contact line and the transmission mechanism. As is clear from FIG. 6, the link 215 of the transmission mechanism 21
is rotatably supported by a support part 216 suspended from the ceiling, and a pinion gear 217 is fixed to the tip thereof. Therefore, the rotational driving force from the drive device 20 described above is
This pinion gear 217 via the transmission mechanism 21
will be given to

A rack 22 is engaged with the pinion gear 217 above the pinion gear 217, and the rack 22 is provided so as to be movable together with the movable rigid overhead contact line 11. That is, a rack 22 is fixedly provided on the support part 12 of the mobile rigid overhead contact line 11 via angles 121 and 122. In addition, easy 22
7, which is a side view of the portion shown in FIG. 6, extends parallel to the movable rigid overhead contact line 11. Therefore, pinion gear 2
By the rotation of 17, the rack 22 is moved to the plane of the paper in FIG.
The movable rigid overhead contact wire 11 is driven in the direction of the paper back, thereby also being able to move in the longitudinal direction.

Note that the mobile rigid overhead contact line 11 is suspended from the support section 12 via an insulator 115. Above the support section 12, rollers 125 and 126 are provided which are rotatably attached to supports 123 and 124 that stand up on the upper surface of the support section 12. The rollers 125, 126 are connected to the guide 2 made of section steel.
4 is engaged. Therefore, the movable rigid overhead contact line 11 driven by the pinion gear 217
The rollers 125, 12 are attached to the fixed guide 24.
6 can be moved by contacting and rotating.

In the transmission mechanism 21, it is not necessarily necessary to use the universal joints 212 as described above, and as schematically shown in FIG. They may be connected by a link through the link.

Returning to FIG. 2, the mobile rigid overhead contact line system of this embodiment is provided with not only a mechanism for moving the mobile rigid overhead contact line 11 but also a locking device 30. As shown in a front sectional view in FIG. 9 and a plan view in FIG. include. The cylinder rod 303 of the electric cylinder 302 is connected to a link 304, which is rotatably supported by a linear ball bearing 305, and a locking member 306 is attached to the tip of the link 304. . The locking member 306 is a U-shaped member, as clearly shown in FIG. 10, and locks the angle 127 constituting the support portion 12. That is, at all times, the support portion 12 is locked by the locking member 306, so that the movable rigid overhead contact line 11 is locked so as not to move in its longitudinal direction. On the other hand, if it is necessary to open and close the shielding door 6 shown in FIG. 2 due to the occurrence of a disaster, etc., the mobile rigid overhead contact line 1
1 has to be moved, so by driving the electric cylinder 302, the locking member 30
6 and angle 127. Such a locking device 30 is
Since it is driven by an electric cylinder 302, the operator can operate the locking device 30 without approaching the location where the locking device 30 is installed.

Next, the end portion of the mobile rigid overhead contact line 11 will be explained. FIG. 11 is a side view showing one end of the mobile rigid overhead contact line, and FIG. 12 is a sectional view taken along - in FIG. 11. Figure 11 and 1
As is clear from Figure 2, the mobile rigid overhead contact line 11
A cable 41 is attached near the end of the cable 41 for electrical connection with the already fixed rigid overhead contact line 5 (see FIGS. 1 and 2).
The cable 41 has one end attached to the mobile rigid overhead contact line 11, and is connected from the ceiling above the mobile rigid overhead contact line 11 and further outside the rack 22, as shown in FIG. It is supported by a suspended cable support 42 . The cable 41 is a mobile rigid overhead contact line 11
It is connected to the rigid overhead contact line 5 at a predetermined length in consideration of the movement of the cable.

As is clear from the above description, in the mobile rigid overhead contact line device of this embodiment, the mobile rigid overhead contact line 1
1 is transferred to the drive device 20 via the transmission mechanism 21.
This can be done by Therefore, the worker does not have to go inside the tunnel 1 and use a ladder or the like to approach the mobile rigid overhead contact line 11 installed near the ceiling, and can work extremely safely. I know what I'm getting. In particular, when the motor 201 is used as the drive source of the drive device 20, the tunnel 1
It can be operated from the outside without having to go inside, further improving work safety. Also,
Since the locking device 30 enables fixation before and after movement, it can be seen that the fixation of the mobile rigid overhead contact line 11 before and after movement can also be remotely controlled.

In addition, as shown in the schematic side view in FIG.
In order to detect the movement of the mobile rigid overhead contact line 11,
Limit switches 51 and 52 are placed in advance at appropriate locations, and the limit switches 51 and 5
If the mobile rigid overhead contact line device is provided with a contact piece that can come into contact with the mobile rigid overhead contact line 11, even if the mobile rigid overhead contact line 11 is operated from the outside and moved, for example, in the direction of the arrow, the distance traveled can be reliably known. becomes possible. This can be done not only by the limit switches 51 and 52 but also by any suitable known detection means such as a phototube.

Furthermore, as shown in a partially cutaway side view in FIG. It becomes possible to reliably control the amount. That is, even if the mobile rigid overhead contact line 11 moves beyond the required distance for some reason, the movement of the mobile rigid overhead contact line 11 can be stopped by the stopper 241.

[Effects of the Invention] As described above, according to the present invention, a fixed guide, a mobile rigid overhead contact line movably provided along the fixed guide, and a drive for moving the mobile rigid overhead contact line are provided. Since it includes a device and a transmission mechanism connected between the drive device and the mobile rigid overhead contact line in order to transmit the driving force of the drive device to the mobile rigid overhead contact line, it has even better safety. Moreover, it is possible to obtain a mobile rigid overhead contact line device that can quickly move the mobile rigid overhead contact line. Therefore, even if an unexpected natural disaster such as an earthquake occurs, it is possible to minimize and reliably prevent the spread of damage to the subway station premises or underground mall.

[Brief explanation of the drawing]

FIG. 1 is a schematic bottom view of an embodiment of the present invention. FIG. 2 is a schematic perspective view showing a tunnel provided in an embodiment of the present invention. Figure 3 shows the first
FIG. 3 is a cross-sectional view of a tunnel in a portion where a driving device is provided in the embodiment shown in FIG. 3 and FIG. 2; FIG. 4 is a front view showing the driving device of the embodiment shown in FIGS. 1 and 2, and FIG. 5 is a plan view.
6 and 7 are a sectional view and a partially cutaway side view showing the structure of the drive section of the mobile rigid overhead contact line in the embodiment shown in FIGS. 1 and 2. FIG. FIG. 8 is a schematic front view showing another example of the transmission mechanism. FIG. 9 shows a front view of the locking device used in the embodiment shown in FIGS. 1 and 2, and FIG. 10 shows a plan view of the same. 11 and 12 are a side view and a front sectional view of the end of the mobile rigid overhead contact line. 1st
FIG. 3 is a schematic side view for explaining a device for detecting the amount of movement of a mobile rigid overhead contact line.
FIG. 14 is a partially cutaway side view showing a stopper for stopping the movement of the mobile rigid overhead contact line. In the figure, 11 is a mobile rigid overhead contact line, 12 is a support part, 20 is a drive device, 21 is a transmission mechanism, and 30
201 is a motor, 302 is an electric cylinder, and 306 is a locking member.

Claims (1)

[Scope of Claims] 1. A fixed guide, a mobile rigid overhead contact line provided movably along the fixed guide, a drive device for moving the mobile rigid overhead contact line, and a driving force of the drive device. A mobile rigid overhead contact line device, comprising: a transmission mechanism connected between the drive device and the mobile rigid overhead contact line for transmitting the information to the mobile rigid overhead contact line. 2. The mobile rigid overhead contact line device according to claim 1, wherein the drive device includes a motor as a drive source. 3. The mobile rigid overhead contact line device according to claim 1 or 2, further comprising a locking device for locking movement of the mobile rigid overhead contact line. 4. The locking device includes an electric cylinder and a locking member that is driven by the electric cylinder and that normally locks the mobile rigid overhead contact line and releases the lock when the mobile rigid overhead contact line is moved. A mobile rigid overhead line device according to claim 3.