Manual door release devices, railway vehicle door devices

Abstract

To maintain the lock even when a lever is operated by excessive force.SOLUTION: A manual door release device 100 includes a door leaf 10 moved to open / close a doorway 105 of a railroad vehicle by driving force from a driving source, a lock mechanism 110 locking the door leaf when the door leaf is positioned at a fully-opened position, an operation part 120 which is manually operated, a power storage part 130 storing a predetermined amount of operation force generated through the manual operation, and an unlocking part 150 releasing the lock of the lock mechanism by transmitting the predetermined amount of force stored in the power storage part.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to a manual door release device and a railway vehicle door device. [Background technology]

[0002] A door device for a railway vehicle includes a door body and a locking mechanism that locks the door body in a closed state. While the vehicle body is traveling, the door body controls and locks the locking mechanism to prevent the door device from being opened unexpectedly, thereby ensuring the safety of passengers. On the other hand, since it may be necessary to open the door body in an emergency, there are manual unlocking devices that manually unlock a locked locking mechanism. Such manual unlocking devices are sometimes called EVAC (emergency evacuation).

[0003] When a passenger presses a button or the like provided near the door body, a request signal requesting unlocking of the door body is sent to the door device. When the door device confirms that the vehicle speed is below a certain speed, it drives an actuator that had locked the operation of a lever provided near the door body, allowing the lever to be operated. Passengers use the lever to manually operate the locking mechanism to mechanically unlock the door. In this way, the EVAC is designed so that passengers can use the manual unlocking device only when it is safe to open the door. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 07-096834 Summary of the Invention [Problem to be solved by the invention]

[0005] With the above technology, if a desperate passenger in an emergency operates the lever with excessive force, the actuator locking the lever could be damaged, and in some cases, the door itself could become unlocked while the vehicle is moving.

[0006] The present invention is intended to achieve the object of solving the above-mentioned problems. [Means for solving the problem]

[0007] (1) A manual door release device according to one aspect of the present invention comprises: a locking mechanism that locks a door leaf that moves to open and close a boarding / alighting door of a railroad vehicle by a driving force from a driving source when the door leaf is in a fully closed position; An operation unit that is manually operated; a force accumulation unit that accumulates a predetermined amount of the operating force generated by the manual operation; an unlocking unit that transmits the predetermined amount of force stored in the force storage unit to unlock the locking mechanism; Equipped with The force storage unit includes a restricting unit that restricts the transmission of the predetermined amount of force to the unlocking unit, and when a release signal is received, the restricting unit is driven to release the restriction, allowing the predetermined amount of force to be transmitted to the unlocking unit, thereby unlocking the locking mechanism; The operation unit includes: An inside operation unit that can be operated from inside the vehicle; An exterior operation unit that can be operated from outside the vehicle; Including, The force storage unit is an interior force storing unit that stores a force generated when the interior operation unit is operated; an exterior force storing unit that stores a force generated when the exterior operation unit is operated; Including, the unlocking unit includes a cylinder and a piston, and the piston is connected to receive an output from the vehicle interior force storage unit and an output from the vehicle exterior force storage unit; a detection unit is provided that detects that a force is stored in the force storage unit by the operation of the operation unit, The detection unit issues a signal to request unlocking based on a detection result that force has been stored in the force storage unit of one or both of the independently operable interior operation unit or exterior operation unit. A manual door release device according to one aspect of the present invention includes a locking mechanism that locks a door leaf that moves to open and close a boarding / alighting door of a railway vehicle by a driving force from a driving source when the door leaf is in a fully closed position; An operation unit that is manually operated; a force accumulation unit that accumulates a predetermined amount of the operating force generated by the manual operation; an unlocking unit that transmits the predetermined amount of force stored in the force storage unit to unlock the locking mechanism; Equipped with.

[0008] According to the manual door release device of one aspect of the present invention, the force can be absorbed by the force accumulation section, so that the unlocking section will not break even if the operating section is operated with a strong force.

[0009] Above The manual door release device described is The force storage unit includes a restricting unit that restricts the transmission of the predetermined amount of force to the unlocking unit, and when a release signal is received, the restricting unit is driven to release the restriction, allowing the predetermined amount of force to be transmitted to the unlocking unit, thereby unlocking the lock mechanism. It is possible.

[0010] Above The manual door release device described is The operation unit includes: An inside operation unit that can be operated from inside the vehicle; An exterior operation unit that can be operated from outside the vehicle; Including, The force storage unit is an interior force storing unit that stores a force generated when the interior operation unit is operated; an exterior force storing unit that stores a force generated when the exterior operation unit is operated; Including, It is possible.

[0011] Above The manual door release device described is the unlocking unit includes a cylinder and a piston, and the piston is connected to receive the output of the vehicle interior force storage unit and the output of the vehicle exterior force storage unit. It is possible.

[0012] ( 2 )the above( 1 The manual door release device described in the unlocking unit has a synchronization mechanism that synchronizes a movement of the piston caused by the transmitted output of the vehicle interior force storage unit with a movement of the piston caused by the transmitted output of the vehicle exterior force storage unit. It is possible.

[0013] (3 )the above( 1) The manual door release device described in The force storing unit is capable of storing force by a biasing force of a spring. It is possible.

[0014] ( 4 )the above( 3 The manual door release device described in The unlocking unit includes a cylinder and a piston, and a spring is provided to return the position of the piston and the position of the spring of the force storing unit to positions before force storage. It is possible.

[0015] ( 5 )the above( 1 The manual door release device described in The regulating portion is a latch lever that restricts the transmission of the force stored in the force storage unit to the unlocking unit; an actuator that drives the latch lever to release the restriction on transmission to the unlocking unit; Including, It is possible.

[0016] ( 6 )the above( 5 The manual door release device described in The unlocking unit includes a piston to which the output of the force storing unit is transmitted, and a cylinder into which the piston is inserted so as to be capable of reciprocating motion. The piston is formed with a hook portion, A hook portion capable of being hooked onto the hooked portion is formed on one end of the latch lever. It is possible.

[0017] ( 7 )the above( 5 The manual door release device described in A roller is provided at the other end of the latch lever, and the actuator in contact with the roller rotates the roller to release the restriction on the transmission of the force stored in the force storage unit to the unlocking unit. It is possible.

[0018] ( 8 )the above( 7 The manual door release device described in The unlocking unit includes a piston to which the output of the force storing unit is transmitted, and a cylinder into which the piston is inserted so as to be capable of reciprocating motion. The piston has a first hook portion and a second hook portion, the latch lever is provided as a pair so as to be hooked to the first hook portion and the second hook portion so as to sandwich the piston, The rollers are provided at the other ends of the pair of latch levers so as to be in contact with the actuator so as to sandwich the actuator therebetween. It is possible.

[0019] (9) The manual door release device described in (1) above, The force storage unit includes a cylinder and a rod. The cylinder of the unlocking unit and the cylinder of the force storing unit are positioned in parallel. It is possible. ( 10 )From (1) above ( 9 The manual door release device according to any one of the following: A detection unit is provided that detects that a force is stored in the force storage unit by the operation of the operation unit. It is possible.

[0020] Drive A door leaf that moves to open and close a boarding / alighting door of a railway vehicle by a driving force from a power source; a locking mechanism that locks the door leaf when the door leaf is in a fully closed position; An operation unit that is manually operated; a force accumulation unit that accumulates a predetermined amount of the operating force generated by the manual operation; an unlocking unit that transmits the predetermined amount of force stored in the force storage unit to unlock the locking mechanism; Equipped with Railway vehicle door equipment.

[0021] According to the railway vehicle door device of one aspect of the present invention, the force can be absorbed by the force storage unit, so that the unlocking unit will not break even if the operating unit is operated with a strong force. Effect of the Invention

[0022] According to the present invention, the unlocking section, which releases the locking mechanism, can be operated and unlocked by the force stored in the force storage section through an emergency operation, so even if the operating section is pulled with a strong force, the force can be absorbed by the force storage section, and the unlocking section will not break. [Brief description of the drawings]

[0023] [Figure 1] 1 is a schematic diagram showing a door on which a first embodiment of a manual door unlocking device according to the present invention is arranged, viewed in the vehicle width direction. FIG. [Diagram 2] 1 is a top view showing a first embodiment of a manual door release device according to the present invention; [Diagram 3] 1 is a top cross-sectional view showing a first embodiment of a manual door release device according to the present invention; [Figure 4] FIG. 4 is a perspective view showing a cross section taken along line IV-IV in FIG. [Diagram 5] 3 is a perspective view showing a cross section taken along the line VV in FIG. 2. [Figure 6] FIG. 4 is an axial sectional view showing a second embodiment of a manual door release device according to the present invention. [Figure 7] FIG. 7 is a view showing FIG. 6 as viewed in the axial direction. [Figure 8] FIG. 4 is an axial sectional view showing a second embodiment of a manual door release device according to the present invention. [Figure 9] FIG. 4 is an axial sectional view showing a second embodiment of a manual door release device according to the present invention. [Figure 10] FIG. 10 is a view showing FIG. 9 as viewed in the axial direction. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0024] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of a manual door release device according to the present invention will be described below with reference to the drawings. Fig. 1 is a schematic diagram of the vicinity of the boarding / alighting door of a railway vehicle where a manual door releasing device of this embodiment is arranged, viewed in the vehicle width direction. Fig. 2 is a top view showing the manual door releasing device of this embodiment. Fig. 3 is a top sectional view showing the manual door releasing device in a plane parallel to Fig. 2 at a position deeper in the paper than Fig. 2. Fig. 4 is a perspective view showing the manual door releasing device of this embodiment, showing a cross section taken along the arrows IV-IV in Fig. 2. Fig. 4 is a perspective view showing the manual door releasing device of this embodiment, showing a cross section taken along the arrows VV in Fig. 2. In the figures, reference numeral 100 denotes a manual door releasing device.

[0025] In the following embodiment, an example of a railway door device having a pair of doors that open and close the entrance and exit of a railway vehicle (car) is described. In the following description, expressions indicating relative or absolute arrangements, such as "parallel," "orthogonal," "center," and "coaxial," do not only mean such arrangements strictly, but also include a state in which they are relatively displaced with a tolerance or an angle or distance that provides the same function. In the drawings used in the following description, the scale of each component has been appropriately changed to make each component large enough to be recognized.

[0026] The manual door release device 100 according to this embodiment is disposed above the entrance / exit 105, as shown in FIG. As shown in Figure 1, the manual door release device 100 of this embodiment has a door leaf 10 that moves to open and close the boarding and alighting entrance 105 of a railway vehicle by a driving force from a driving source not shown, a locking mechanism 110 that locks the door leaf 10 when the door leaf 10 is in the fully closed position, and an operating unit 120 that enables the lock by the locking mechanism 110 to be released by manual operation.

[0027] In the following explanation, an X, Y, Z Cartesian coordinate system is used as necessary. The Y direction coincides with the width direction of the vehicle. The X direction coincides with the front-rear direction of the vehicle. The Z direction indicates the height direction of the vehicle (gravity direction) perpendicular to the Y and X directions. In the following explanation, the Y, X, and Z directions are explained with the arrows in the figures as the plus (+) side and the opposite side to the arrows as the minus (-) side. The +Y side corresponds to the inside in the vehicle width direction, and the -Y side corresponds to the outside in the vehicle width direction. The +Z side corresponds to the upper side in the gravity direction, and the -Z side corresponds to the lower side in the gravity direction.

[0028] 1, the manual door release device 100 includes an operation unit 120 for manually releasing the lock of the lock mechanism 110. The operation unit 120 includes an interior operation unit 121 that can be operated from inside the vehicle, and an exterior operation unit 122 that can be operated from outside the vehicle. The interior operation unit 121 and the exterior operation unit 122 are operating handles that can be manually operated, and the operating force can be transmitted thereto by wires 123 and 124, respectively. The locations of the inside-car operation unit 121 and the outside-car operation unit 122 are not particularly limited as long as they are located in a position that allows operability to be maintained in possible situations, such as by passengers, crew members, and station staff in an emergency.

[0029] The manual door unlocking device 100 includes a force accumulation unit 130 and an unlocking unit 150, as shown in FIGS. The force accumulation unit 130 includes an interior force accumulation unit 131 that accumulates force produced by operating the interior operation unit 121, an exterior force accumulation unit 132 that accumulates force produced by operating the exterior operation unit 122, and a restriction unit 140. The interior force accumulation unit 131 accumulates a predetermined amount of force produced by manual operation within a range in which a spring 68 (described later) can accumulate force. The exterior force accumulation unit 132 accumulates a predetermined amount of force produced by manual operation within a range in which a spring 78 (described later) can accumulate force. 2 to 5 show a state in which the door leaf 10 is closed and the lock mechanism 110 locks the door leaf 10. In FIG.

[0030] As shown in Figures 2 to 5, the manual door release device 100 has a link 1, a block 2, a rod 3, a rod 4, a base 5, a cylinder 6, a cylinder 7, an actuator 14, latch levers 11 and 12, and switches 161 to 164. The link 1 is disposed such that its axial direction coincides with the X direction. One end of the link 1 is connected to an unlocking lever of the lock mechanism 110. The other end (end portion) 1b of the link 1 is connected to the block 2. The link 1 moves together with the block 2 in the -X direction to unlock the lock mechanism 110.

[0031] The block 2 is disposed in a position in the +X direction with respect to the base 5 . Block 2 has a central portion 21 extending in the X direction, and arm portions 22 and 23 each extending in the Y direction from the +X direction end of central portion 21. Block 2 has a T-shape when viewed in the Z direction.

[0032] The block 2 is capable of reciprocating in the X direction relative to the base 5 at a central portion 21 which is the central position in the Y direction. The block 2 is in contact with the rod 3 at its end position in the +Y direction at arm portion 22 so as to be able to move back and forth in the X direction. The end portion in the +Y direction of arm portion 22 is connected to base 5 via links 62a, 62b which serve as a synchronization mechanism for synchronizing movement in the X direction. Links 62a, 62b are rotatably connected to each other, arm portion 22, and base 5 by rotation shafts each having a rotation axis along the Y direction.

[0033] The block 2 is in contact with the rod 4 at the arm portion 23, which is the end position in the -Y direction, so as to be able to move back and forth in the X direction. The -Y direction end of the arm portion 23 is connected to the base 5 via links 72a and 72b, which serve as a synchronization mechanism that synchronizes movement in the X direction. The links 72a and 72b are rotatably connected to each other, the arm portion 23, and the base 5 by rotation shafts each having a rotation axis along the Y direction. The base 5 is provided with detection units (switches) 161-164 that detect when force is accumulated in the force accumulating unit 130 by operation of the operating unit 120. The switches 161-164 are fixed to the base 5, and are turned ON by the cylinder ends 65, 75 and wire fixing units 66, .

[0034] The axial direction of the rod 3 coincides with the X direction, and the rod 3 is capable of reciprocating in the X direction relative to each of the block 2 and the base 5. The rod 3 is disposed such that its axial direction is parallel to the X direction in which the central portion 21 extends. The end of the rod 3 in the +X direction passes through a through hole formed in the arm portion 22 of the block 2. The end of the rod 3 in the +X direction has a stopper 3a that is enlarged in diameter to prevent the rod 3 from coming out of the through hole of the arm portion 22. The −X direction end of the rod 3 is inserted into the cylinder 6. The −X direction end of the rod 3 is connected to a spring 68 as described later.

[0035] The axial direction of the cylinder 6 coincides with the X direction, and the cylinder 6 is supported by the base 5 so as to be capable of reciprocating in the X direction. The cylinder 6 is arranged in the base 5 so as to be movable in the axial direction within an X-direction through hole formed in a portion 5a located in the +Y direction. A spring 68 is housed inside the cylinder 6 so that their axial directions coincide with each other. A cylinder end 65 is fixed to the −X direction end of the cylinder 6, closing the axial end. A wire fixing portion 66 is provided on the cylinder end 65 at a position further toward the −X direction in the axial direction of the cylinder 6.

[0036] A through hole is provided at the +X direction end of the cylinder 6, and the rod 3 passes through this through hole. The rod 3 is inserted into the inside of the cylinder 6 from the through hole in the -X direction. The cylinder 6 and the rod 3 are capable of reciprocating in the X direction so that their axial directions coincide. The +X direction end of the rod 3 protrudes axially from the inside of the cylinder 6 to the outside, and passes through the block 2. A spring 68 is connected inside the +X direction end of the cylinder 6.

[0037] The arm portion 22 of the block 2, the rod 3, the cylinder 6, the spring 68, the cylinder end portion 65, and the wire fixing portion 66 constitute an interior force storing portion 131 which receives the operating force from the interior operation portion 121 and stores it. In the force accumulating section 130 , the vehicle interior force accumulating section 131 is capable of accumulating force by the biasing force of the spring 68 .

[0038] The axial direction of the rod 4 coincides with the X direction, and the rod 4 is capable of reciprocating in the X direction relative to each of the block 2 and the base 5. The rod 4 is disposed such that its axial direction is parallel to the X direction in which the central portion 21 extends. The end of the rod 4 in the +X direction passes through a through hole formed in the arm portion 23 of the block 2. The end of the rod 4 in the +X direction has a stopper 4a that is enlarged in diameter to prevent the rod 4 from coming out of the through hole of the arm portion 23. The −X direction end of the rod 4 is inserted into the cylinder 7. The −X direction end of the rod 4 is connected to a spring 78 as described later.

[0039] The axial direction of the cylinder 7 coincides with the X direction, and the cylinder 7 is supported by the base 5 so as to be capable of reciprocating in the X direction. The cylinder 7 is arranged so as to be movable in the axial direction inside a through hole in the X direction formed in a portion 5b of the base 5 located in the -Y direction. A spring 78 is housed inside the cylinder 7 so that their axial directions coincide with each other. A cylinder end 75 is fixed to the −X direction end of the cylinder 7, closing the axial end. A wire fixing portion 76 is provided on the cylinder end 75 at a position further toward the −X direction in the axial direction of the cylinder 7.

[0040] A through hole is provided at the +X direction end of the cylinder 7, and the rod 4 passes through this through hole. The rod 4 is inserted into the inside of the cylinder 7 from the through hole in the -X direction. The cylinder 7 and the rod 4 are capable of reciprocating in the X direction so that their axial directions coincide. The +X direction end of the rod 4 protrudes axially from the inside of the cylinder 7 to the outside, and passes through the block 2. A spring 78 is connected inside the +X direction end of the cylinder 7.

[0041] The arm portion 23 of the block 2, the rod 4, the cylinder 7, the spring 78, the cylinder end portion 75, and the wire fixing portion 76 constitute an exterior force storing portion 132 which receives the operating force from the exterior operating portion 122 and stores it. In the force accumulation section 130 , the vehicle exterior force accumulation section 132 is capable of accumulating force by the biasing force of the spring 78 .

[0042] When the force storage unit 130 receives a release signal, which may be a signal transmitted from a higher-level device or a conductor, etc., or which includes a state during a power outage, it drives the restricting unit 140 to release the restriction, allowing a predetermined amount of force to be transmitted to the unlocking unit 150, thereby unlocking the locking mechanism 110.

[0043] The restricting portion 140 includes latch levers 11, 12 that restrict the transmission of the force stored in the force storing portion 130 to the unlocking portion 150, and an actuator 14 that drives the latch levers 11, 12 to release the restriction on the transmission to the unlocking portion 150.

[0044] The unlocking unit 150 transmits a predetermined amount of force stored in the force storing unit 130 to unlock the lock mechanism 110 . The unlocking section 150 includes a rod 3, a rod 4, a block 2, and a link 1. The unlocking unit 150 also includes a cylinder 151, a piston 152, and a spring 153. In the unlocking unit 150, the cylinder 151 and the piston 152 are provided coaxially. The piston 152 can reciprocate in the X direction relative to the cylinder 151. The reciprocating movement of the piston 152 in the X direction relative to the cylinder 151 enables the block 2 to reciprocate in the X direction relative to the base 5.

[0045] The cylinder 151 is formed in the base 5. The cylinder 151 is formed in a central position in the Y direction of the base 5. A spring 153 is housed inside the cylinder 151. A piston 152 is coaxially inserted into the cylinder 151. Cylinder 151 is provided in parallel to cylinders 6 and 7. Cylinder 6 is positioned parallel to cylinder 151 in the +Y direction. Cylinder 7 is positioned parallel to cylinder 151 in the -Y direction. Cylinder 6 and cylinder 7 are each independently movable in the X direction relative to cylinder 151.

[0046] The piston 152 is formed in the block 2. The piston 152 connects the vehicle interior force storing unit 131 and the vehicle exterior force storing unit 132 so that force can be transmitted to the link 1. The piston 152 is disposed such that its axis direction is parallel to the X direction in which the central portion 21 of the block 2 extends. A spring 153 is in contact with the end of the piston 152 in the −X direction. The unlocking unit 150 has link portions 62, 72 as a synchronization mechanism that synchronizes the movement of the piston 152 due to the transmitted output of the vehicle interior force accumulating unit 131 and the movement of the piston 152 due to the transmitted output of the vehicle exterior force accumulating unit 132.

[0047] The piston 152 has a first hooked portion 152a and a second hooked portion 152b. The piston 152 has grooves 152a and 152b as hooked portions formed on the outer periphery. The grooves 152a and 152b are symmetrically disposed at positions above and below in the Z direction on the outer periphery of the piston 152. The grooves 152a and 152b extend in the circumferential direction of the piston 152. In other words, the grooves 152a and 152b are formed on the outer periphery of the piston 152 in such a manner that recessed ridges are intermittently formed in the circumferential direction. The grooves 152a and 152b have a smoothly inclined slope shape so that the claws 11b and 12b of the latch levers 11 and 12 are pushed up by the movement of the piston 152 in the X direction, as described later.

[0048] The latch levers 11 and 12 are provided above and below the cylinder 151 on the base 5 in the Z direction. The latch lever 11 is provided along the X direction at an upper position in the Z direction of the cylinder 151 on the base 5. The latch lever 12 is provided along the X direction at a lower position in the Z direction of the cylinder 151 on the base 5. The latch lever 11 and the latch lever 12 have the same shape and are disposed at positions symmetrical to each other in the Z direction with respect to the axis of the cylinder 151 .

[0049] The latch levers 11 and 12 are installed on the base 5 so as to be rotatable by the rotation shafts 11a and 12a. The rotation shafts 11a and 12a are both disposed in a position slightly in the -X direction from the center position in the X direction of the latch levers 11 and 12. The rotation shafts 11a and 12a extend in the Y direction and are disposed parallel to each other. The rotation shafts 11a and 12a are perpendicular to the axis of the cylinder 151 when viewed in the Z direction. The rotation shafts 11a and 12a are disposed so as to overlap when viewed in the Z direction. The latch lever 11 and the latch lever 12 are capable of rotating symmetrically about rotation axes 11a and 12a.

[0050] The latch levers 11 and 12 are provided as a pair such that a first hooking portion (claw) 11b and a second hooking portion (claw) 12b can be hooked onto a first hooked portion (groove) 152a and a second hooked portion (groove) 152b so as to sandwich the piston 152. At the end (one end) in the +X direction of the latch levers 11 and 12, claws 11b and 12b are formed as hooking portions to be hooked into the grooves 152a and 152b as hooked portions.

[0051] Rollers 13a, 13b are provided at the ends (other ends) in the -X direction of the latch levers 11, 12. In the latch lever 11, the claw 11b and the roller 13a are provided at the ends opposite to each other with respect to the rotation shaft 11a. In the latch lever 12, the claw 12b and the roller 13b are provided at the ends opposite to each other with respect to the rotation shaft 12a.

[0052] The rollers 13a and 13b are provided at the ends (other ends) of the pair of latch levers 11 and 12 in the -X direction so as to be able to come into contact with the actuator rod 14a so as to sandwich the actuator rod 14a. Rollers 13a and 13b have the same shape and are disposed at positions symmetrical in the Z direction with respect to the axis of cylinder 151. Rollers 13a and 13b face each other. Rollers 13a and 13b are spaced apart from each other by a distance that allows actuator rod 14a of actuator 14 to be inserted.

[0053] The actuator 14 can reciprocate the actuator rod 14a in the X direction, which is the axial direction. The actuator 14 is, for example, an electric solenoid. The actuator rod 14a moved in the +X direction by the actuator 14 comes into contact with the rollers 13a and 13b. The actuator rod 14a moved in the -X direction by the actuator 14 moves away from the rollers 13a and 13b. When the actuator rod 14a moves in the X direction, the rollers 13a and 13b rotate in opposite directions.

[0054] The actuator 14 extends and lengthens the actuator rod 14a so that it moves in the +X direction. The actuator rod 14a is positioned between the rollers 13a and 13b and is in contact with them. At this time, the angles of the latch levers 11 and 12 around the rotation axes 11a and 12a are determined so that the rollers 13a and 13b are spaced apart from each other. Then, the claws 11b and 12b approach each other.

[0055] As a result, claw 11b enters and comes into contact with groove 152a. Claw 11b is hooked into groove 152a. Similarly, claw 12b enters and comes into contact with groove 152b. Claw 12b is hooked into groove 152b. In this state, piston 152 is pressed down from both sides in the Z direction by claws 11b and 12b, and neither claw 11b nor claw 12b comes out of grooves 152a, 152b. Therefore, the movement of the piston 152 in the X direction is restricted, and therefore the movement of the block 2 integrated with the piston 152 in the X direction is also restricted.

[0056] The actuator 14 retracts and retracts the actuator rod 14a so that it moves in the -X direction. Then, actuator rod 14a, which has moved in the -X direction, shifts in the -X direction from the position between rollers 13a and 13b and is no longer in contact with them. The rollers 13a and 13b are no longer restricted by the actuator rod 14a, and the latch levers 11 and 12 rotate about the rotation shafts 11a and 12a so as to approach each other. Then, the claws 11b and 12b move away from each other.

[0057] As a result, claw 11b moves outward from groove 152a in the +Z direction and is released from contact. Similarly, claw 12b moves outward from groove 152b in the -Z direction and is released from contact. In this state, claw 11b and claw 12b are both out of grooves 152a and 152b. Also, piston 152 is separated from claw 11b and claw 12b. Therefore, the movement of the piston 152 in the X direction is not restricted and the block 2 integrated with the piston 152 is also not restricted in the X direction.

[0058] In this manner, the actuator 14 releases the restriction on the transmission of the force stored in the force storing unit 130 to the unlocking unit 150 by rotating the roller with the actuator rod 14a.

[0059] In the manual door release device 100 of this embodiment, the link 1, the tip of which is connected to the unlocking lever of the lock mechanism 110, is pulled in the -X direction to unlock the door leaf 10. Here, the movement of the link 1 is linked to the movement of the block 2 of the EVAC to which the other end 1b is connected. The rods 3, 4 penetrating the block 2 receive the spring forces of springs 68, 78 inside cylinders 6, 7 guided by a base 5.

[0060] Cylinder ends 65, 75 are fixed to the cylinders 6, 7, and are moved by being pulled in the -X direction by wires (wire cables) 123, 124 connected to an inside-vehicle operating unit 121 or an outside-vehicle operating unit 122, respectively, which are connected to the cylinders 6, 7 via wire fixing parts 66, 76.

[0061] Here, as the interior force storing unit 131, the cylinder 6 is pulled and moved in the -X direction via a wire (wire cable) 123 by operation of the interior operation unit 121. As the exterior force storing unit 132, the cylinder 7 is pulled and moved in the -X direction via a wire (wire cable) 124 by operation of the exterior operation unit 122. The interior force storing unit 131 and the exterior force storing unit 132 can operate independently.

[0062] In the restricting portion 140, the latch levers 11 and 12 located at the center of the base 5 rotate on the rotary shafts 11a and 12a, and can switch between a restricted state and a non-restricted state depending on the degree of engagement between the claws 11b and 12b and the grooves 152a and 152b. This switching is possible depending on whether the actuator rod 14a, which is advanced and retreated by the electric actuator 14, abuts against the rollers 13a and 13b.

[0063] <Normal state> In a normal state, such as when the vehicle is traveling, the locking mechanism 110 locks the door leaf 10. At the same time, the electric actuator 14 cannot be unlocked, and the actuator rod 14a is in the extended position as shown in Fig. 5. The claws 11b and 12b are engaged with the grooves 152a and 152b. The block 2 and the link 1 are in a restricted state in which they cannot move relative to the base 5.

[0064] <Unlocking action> For example, in an emergency, when the vehicle interior operation unit 121, such as a handle, is operated, the manual door release device 100 is pulled in the -X direction as a unit via the wire cable 123, i.e., the wire fixing unit 66, the cylinder end portion 65, and the cylinder 6, as shown in FIG. 3.

[0065] Here, when the inboard operation unit 121 cannot be unlocked (the vehicle is moving or passengers cannot get on or off at the door opposite the platform), the actuator rod 14a is in the extended position and contacts the rollers 13a, 13b, restricting the movement of the latch levers 11, 12. The claws 11b, 12b at the ends of the latch levers 11, 12 are hooked on the grooves 152a, 152b of the piston 152, restricting the movement of the block 2 integrated with the piston 152. Therefore, the block 2 maintains the same position relative to the base 5 as it was before the operation of the operation unit 120.

[0066] The rod 3, which is caught on the block 2 by the stopper 3a, does not move together with the cylinder 6 and its stroke is restricted, so that the rod 3 maintains its position in the X direction. Therefore, as shown in Fig. 3, the stroke of the cylinder 6 compresses the spring 68. This stroke of the cylinder 6 stores an operating force in the spring 68. During emergency unlocking, first, the handle of the interior operation unit 121 is held in the pulled position, and the spring force of the spring 68 is stored in the interior force storage unit 131.

[0067] At this time, as shown in Fig. 3, the wire fixing unit 66 presses the switches 161, 163, which then issue a signal requesting unlocking. The signal is transmitted to a higher level vehicle control unit, such as a driver or a command center, to request a decision on whether or not to unlock the vehicle. Two switches 161, 163 are provided in order to send signals to separate higher level controls and to ensure operational reliability.

[0068] At this time, since the exterior operation unit 122 is not operated, the exterior force storing unit 132 does not change from its normal state as shown in Fig. 3. In other words, the interior force storing unit 131 can store force independently of the exterior force storing unit 132.

[0069] When it is determined by the higher level (vehicle, ATC) that the door can be unlocked (vehicle stopped, platform side boarding / alighting gate 105), the actuator 14 is demagnetized by an unlocking signal issued from the higher level command, and the actuator rod 14a moves in the -X direction to the retracted position. Considering the need for emergency escape in the event of an emergency, the actuator 14 is also demagnetized in the event of a power outage.

[0070] The actuator rod 14a, which has moved in the -X direction to the retracted position, does not come into contact with the rollers 13a, 13b, and the movements of the latch levers 11, 12 are not restricted. The claws 11b, 12b at the ends of the latch levers 11, 12 can be separated from the grooves 152a, 152b of the piston 152, and the movement of the block 2 integrated with the piston 152 is not restricted and is in an unrestricted state. Therefore, the piston 152 can move from the position before the operation of the operation unit 120 relative to the base 5. In other words, the block 2 can move in the -X direction relative to the base 5.

[0071] Then, the rod 3 moves in the -X direction due to the spring force stored in the compressed spring 68. The block 2 moves in the -X direction together with the rod 3. The block 2 moves in the -X direction relative to the base 5 as a piston 152. When the block 2 moves in the -X direction due to the spring force of the spring 68, the claws 11b, 12b of the latch levers 11, 12 and the slope-shaped grooves 152a, 152b are pushed up and disengaged by the movement of the piston 152 in the -X direction.

[0072] When block 2 moves in the +X direction, its posture is controlled by piston 152. At the same time, the movement of block 2 in the X direction is synchronized with respect to base 5 via links 62a and 62b as a synchronizing mechanism in arm portion 22 and links 72a and 72b as a synchronizing mechanism in arm portion 23.

[0073] As a result, the link 1 connected to the block 2 moves in the +X direction, and the locking of the door leaf 10 by the locking mechanism 110 is released. Furthermore, the unlocking operation causes the spring 153 to contract and a spring force is stored in the spring 153. At this time, a spring force that balances the spring force of the spring 153 is stored in the spring 68.

[0074] Here, unlocking is normally performed from either the vehicle interior operating unit 121 or the vehicle exterior operating unit 122, which raises concerns that the block 2 will be pulled by one of the cylinders 6, 7, generating a moment and causing malfunction. However, in this embodiment, the links 62a, 62b, 72a, 72b can mechanically synchronize the movement of both ends of the block 2 in the Y direction, allowing for a smooth unlocking operation.

[0075] In this unlocking operation, a method of unlocking by operating the inside operation unit 121 has been described, but the same operation is performed when unlocking by operating the outside operation unit 122. In this case, the inside operation unit 121, wire cable 123, wire fixing unit 66, cylinder end 65, cylinder 6, spring 68, switches 162, 164, rod 3, arm portion 22, and links 62a, 62b should be read as the outside operation unit 122, wire cable 124, wire fixing unit 76, cylinder end 75, cylinder 7, spring 78, switches 161, 163, rod 4, arm portion 23, and links 72a, 72b, respectively.

[0076] In addition, even if both the inside operation unit 121 and the outside operation unit 122 are operated before the unlocking signal reaches the actuator 14, the inside force storage unit 131 and the outside force storage unit 132 can operate independently, so that unlocking can be performed smoothly. Furthermore, even in the event of a power outage, the actuator 14 is demagnetized in the same manner as when the unlocking signal arrives, so that unlocking can be performed without waiting for the arrival of the unlocking signal.

[0077] <Return operation> When the door is to be closed, for example when the vehicle starts to travel, the manual door release device 100 performs a reset operation. Furthermore, the unlocking operation causes the spring 153 to contract and a spring force is stored in the spring 153. At this time, a spring force that balances the spring force of the spring 153 is stored in the spring 68.

[0078] In the return operation, first, the unlocked state of the latch on the handle of the operation unit 120 is released. Then, the wire cable 123 returns to its original position. With this operation, the block 2 moves in the +X direction due to the spring force stored in the spring 153 by the unlocking operation. The cylinder 6 similarly moves in the -X direction due to the spring force of the spring 68, and returns to its original position together with the wire cable 123.

[0079] Furthermore, when the actuator 14 is excited by a higher-level command, the actuator rod 14a extends in the +X direction and contacts the rollers 13a and 13b. As the rollers 13a and 13b rotate, the latch levers 11 and 12 rotate so that the rollers 13a and 13b move away from each other in the Z direction. Then, the claws 11b and 12b of the latch levers 11 and 12 engage with the grooves 152a and 152b of the block 2, and the EVAC returns to its initial state.

[0080] In this way, the return operation can be performed by simply returning the handle of the operating unit 120 to its original position and exciting the actuator 14, so that even if the door lock is released in an emergency, it can be quickly returned to its original position.

[0081] The manual door release device 100 of this embodiment can be unlocked by operating the unlocking unit 150, which releases the lock mechanism 110, using the force stored in the force storage unit 130 through emergency operation. Therefore, even if the operating unit 120 is pulled with a strong force, the force can be absorbed by the force storage unit 130, so the unlocking unit 150 will not break. In addition, when the actuator 14 is unlocked, the unlocking unit 150 operates to unlock the door using the force stored in the force storage unit 130, so the operator does not need to perform any additional operations other than operating the handle (lever) of the operating unit 120. In addition, after the passenger or the like operates the operation unit 120, the upper regulating unit 140 can determine whether or not to unlock the door, so the door opening to unlock the door can be selected after the decision by the crew, station staff, train control unit, etc. is made. This can improve safety.

[0082] In reality, it is ordinary passengers who manually perform the unlocking operation on the door leaf 10, and such an unlocking operation is performed in an emergency. For this reason, it is desirable that the unlocking operation of the door leaf 10 is simple and has a small number of steps so that passengers can intuitively understand it. The manual door unlocking device 100 of this embodiment does not require the two-stage operation of signal transmission and unlocking that was necessary in the conventional technology. The manual door unlocking device 100 of this embodiment can solve the problem that it may take a long time for the door leaf to be opened in the conventional configuration. Furthermore, the manual door unlocking device 100 of this embodiment can solve the problem that the door may not be opened unless the second stage operation is performed.

[0083] In addition, the manual door release device 100 in this embodiment solves the problem that, in the conventional configuration, the lever is locked by an actuator so that it cannot be operated while the vehicle is moving, and therefore, there is a possibility that a signal to notify the crew in the event of an emergency escape cannot be output. In addition, the manual door release device 100 of this embodiment solves the requirement that unlocking operation must be possible from both the inside and outside of the vehicle, and further, that it must be possible to reliably operate independently from both the inside and outside of the vehicle. Since the two-step operation of signal transmission and unlocking is not required, the time required to open the door can be shortened, resulting in improved reliability and safety.

[0084] In the manual door release device 100 of this embodiment, the force accumulation unit 130 includes a restricting unit 140 that restricts the transmission of a predetermined amount of force to the unlocking unit 150, and when a release signal is received, the restricting unit 140 is driven to release the restriction, allowing the predetermined amount of force to be transmitted to the unlocking unit 150, and unlocking the lock mechanism 110. This makes it possible to determine whether or not to unlock the door. Therefore, safety can be improved.

[0085] The operation unit 120 includes an inside operation unit 121 that can be operated from inside the vehicle, and an outside operation unit 122 that can be operated from outside the vehicle, and the force storage unit 130 includes an inside force storage unit 131 that stores the force when the inside operation unit 121 is operated, and an outside force storage unit 132 that stores the force when the outside operation unit 122 is operated, thereby making it possible to independently operate the unlocking of the door leaf 10 from either inside or outside the vehicle.

[0086] The unlocking unit 150 is equipped with a cylinder 151 and a piston 152. The piston 151 is connected so that the output of the inside force storage unit 131 and the output of the outside force storage unit 132 are transmitted thereto, thereby enabling independent storage of force for operations outside the vehicle and for unlocking the vehicle without interfering with each other.

[0087] The unlocking unit 150 has link sections 62, 72 as a synchronization mechanism that synchronizes the movement of the piston 151 due to the output of the inside-side force storage unit 131 and the movement of the piston 151 due to the output of the outside-side force storage unit 132, thereby preventing operations inside and outside the vehicle from interfering with each other, improving the operational reliability of the manual door release device 100 in an emergency and improving safety.

[0088] Since the force accumulating unit 130 is capable of accumulating force by the biasing force of the springs 68, 78, the amount of stored force can be set by adjusting the biasing force of the springs 68, 78, and a drive power source or the like can be eliminated.

[0089] The unlocking section 150 includes a cylinder 151 and a piston 152, and is provided with a spring 153 that returns the position of the piston 151 and the position of the springs 68, 78 of the force accumulation section 130 to their positions before force accumulation, thereby enabling a rapid return operation.

[0090] The restriction unit 140 includes latch levers 11, 12 that restrict the transmission of the force stored in the force storage unit 130 to the unlocking unit 150, and an actuator 140 that drives the latch levers 11, 12 to release the restriction on the transmission to the unlocking unit 150, thereby making it possible to easily unlock and lock the door.

[0091] The unlocking section 150 comprises a cylinder 151 and a piston 152. The piston 152 is formed with hook portions (grooves) 152a, 152b, and one end of the latch levers 11, 12 is formed with hook portions (claws) 11b, 12b that can be hooked onto the hook portions (grooves) 152a, 152b, thereby making it possible to improve the reliability of preventing malfunction.

[0092] Rollers 13a, 13b are provided on the other ends of latch levers 11, 12, and by rotating rollers 13a, 13b with actuator rod 14a of actuator 14 in contact with rollers 13a, 13b, the restriction on the transmission of the force stored in force storage unit 130 to unlocking unit 150 is released, thereby improving ease of operation in the contact between actuator rod 14a of actuator 140 and rollers 11, 12 and enabling actuator 140 to be made smaller.

[0093] The piston 152 has a first hooked portion (groove) 152a and a second hooked portion (groove) 152b. At one end of each of the pair of latch levers 11 and 12, a pair of a first hooked portion (claw) 11b and a second hooked portion (claw) 12b are provided so as to sandwich the piston 152 and to be hooked with the first hooked portion (groove) 152a and the second hooked portion (groove) 152b. At the other end of each of the pair of latch levers, rollers 11 and 12 are provided so as to be in contact with the actuator rod 14a of the actuator 140 and to sandwich the actuator rod 14a. This makes it possible to smooth the movement of the latch levers 11 and 12, improve the ease of operation in the contact between the actuator rod 14a of the actuator 140 and the rollers 11 and 12, and make it possible to smoothly transmit the operation to the unlocking unit 150.

[0094] By providing detection units 161-164 which detect when force is stored in the force storage unit 130 by operating the operation unit 120, it becomes possible for the higher-level regulation unit 140 to determine whether or not to unlock the door based on the detection results of the detection units 161-164, so that it is possible for a crew member, station staff, train control unit, etc. to determine whether or not to release the lock.

[0095] Hereinafter, a second embodiment of a manual door release device according to the present invention will be described with reference to the drawings. Fig. 6 is a schematic diagram showing a manual door release device in this embodiment. Fig. 7 is a view in the axial direction of Fig. 6. This embodiment differs from the first embodiment described above in terms of the number of force accumulation units. Other configurations corresponding to those in the first embodiment described above are denoted by the same reference numerals and will not be described. In the following description, configurations that "correspond" to the configuration of the first embodiment refer to the corresponding operations, such as unlocking operation, and the shapes, etc. may differ between the first and second embodiments.

[0096] In this embodiment, the force accumulating unit 130 has only one force accumulating unit 230 corresponding to the vehicle interior force accumulating unit 131, and for example, the vehicle exterior force accumulating unit 132 is not provided. As shown in FIG. 7, in the manual door release device 200 of this embodiment, a spring 268 corresponding to the spring 68 of the vehicle interior force accumulator 131 and a spring 253 corresponding to the spring 153 performing the return operation are arranged in a straight line.

[0097] Also, a cylindrical cylinder 202 is provided as a configuration corresponding to block 2, and is coaxially housed in a cylindrical cylinder 251 formed in base 205 as a configuration corresponding to base 5. Rod 203 corresponding to rod 3 is located coaxially inside cylinder 202. Rod 203 extended further in the -X direction is located coaxially inside cylindrical cylinder 251 of base 205.

[0098] An end portion in the +X direction of the cylinder 202 is connected to an end portion 201b corresponding to the end portion 1b of the link 1. A protrusion portion 211b corresponding to the claw 11b which is a hooking portion of the regulating portion 140 is formed on the end portion 201b. The protrusion portion 211b is hooked on a latch 252a which corresponds to the groove 152a which is a hooked portion. The latch 252a is driven by an actuator 214 which corresponds to the actuator 14 of the regulating portion 140 so as to be disengaged from the protrusion portion 211b.

[0099] Furthermore, rod 203 is positioned coaxially in cylinder 251 formed in base 205, and rod 203 extends in the -X direction to form rod 265 corresponding to cylinder end 65. Wire fixing part 266 corresponding to wire fixing part 66 is connected to rod 265 at its -X direction end and extends in the -X direction. Wire fixing part 266 is connected to operation part 120 via wire (wire cable) 123.

[0100] Inside cylinder 251 formed in base 205, cylinder 202 is coaxially arranged so as to be movable in the X direction. Rod 203 penetrates the -X direction end of cylinder 202. Enlarged diameter portion 252 corresponding to piston 152 is formed in a portion of rod 203 that can come into contact with the -X direction end of cylinder 202 in the +X direction. Spring 268 corresponding to spring 68 is coaxially arranged inside cylinder 202, which is closer to the +X direction than the -X direction end of cylinder 202.

[0101] The +X direction end of the rod 203 is connected to an expanded diameter end 206 corresponding to the cylinder 6. The expanded diameter end 206 reciprocates in the X direction inside the cylinder 202. The +X direction end of the spring 268 is in contact with the -X direction of the expanded diameter end 206. The spring 253 is disposed in the -X direction of the expanded diameter portion 252 and is in contact with the -X direction end of the cylinder 251. The spring 253 and the spring 268 are in contact with the expanded diameter portion 252 such that the pressing force is in the opposite direction. Here, the spring 268 has a stronger restoring force than the spring 253. Specifically, it is preferable that the spring 268 has a larger winding diameter or wire diameter and a larger elastic force than the spring 253.

[0102] In the restricting portion 140, the actuator 214 is disposed so as to move the actuator rod 214a in the Y direction. Also, the actuator rod 214a drives the latch 252a via links 214b and 214c as shown in Fig. 7. Note that the actuator rod 214a is locked in the retracted position, and is unlocked when driven in the extending direction.

[0103] <Normal state> In the manual door release device 200 of this embodiment, the lock mechanism 110 also locks the door leaf 10 in a normal state, such as when the vehicle is moving. At the same time, the electric actuator 214 is not allowed to unlock, and the actuator rod 214a is in the extended position as shown in Figs. 6 and 7. The protrusion 211b is hooked on the latch 252a. The cylinder 202 and the link 1 are in a restricted state in which they are allowed to move relative to the base 205.

[0104] <Unlocking action> Fig. 8 and Fig. 9 are schematic diagrams showing the manual door release device in this embodiment, and Fig. 10 is a view of Fig. 9 as viewed in the axial direction. In the manual door unlocking device 200 of this embodiment, for example, in an emergency, the operating unit 120, which is a handle or the like, is operated. Then, in the manual door unlocking device 200, the wire fixing part 266, the rod 265, the expanded diameter part 252, the rod 203, and the expanded diameter end part 206 are pulled together in the -X direction via the wire cable 123 as shown in FIG.

[0105] Here, when the operation unit 120 cannot be unlocked (the vehicle is moving or passengers cannot get on or off at the door on the opposite side of the platform), the actuator rod 214a is in the retracted position and restricts the movement of the protrusion 211b. The protrusion 211b is hooked on the latch 252a and restricts the movement of the cylinder 202 integrated with the end portion 201b. Therefore, the cylinder 202 maintains the same position relative to the base 205 as it was before the operation of the operation unit 120.

[0106] The -X direction end of cylinder 202 does not move together with cylinder 202, and therefore maintains its position in the X direction. For this reason, as shown in Fig. 8, spring 268 is compressed by the stroke of enlarged diameter end 206. This stroke of enlarged diameter end 206 accumulates operating force in spring 268. During emergency unlocking, first, the handle of operating unit 120 is held in the pulled position, and the spring force of spring 268 is held in the accumulated state in force accumulation unit 230 (130). At this time, the wire fixing unit 266 pushes a switch (not shown) to issue a signal to request unlocking. The signal is transmitted to a higher level vehicle control unit, such as a driver or a traffic control center, to request a decision on whether or not to unlock the vehicle.

[0107] When it is determined by the higher level (vehicle, ATC) that the door can be unlocked (vehicle stopped, platform side boarding / alighting gate 105), the actuator 214 of the restricting unit 140 is demagnetized by an unlocking signal issued from the higher level command, and the actuator rod 214a moves in the +Y direction to the extended position. Considering the need for emergency escape in the event of an emergency, the actuator 214 is also demagnetized in the event of a power outage.

[0108] The actuator rod 214a, which has moved in the +Y direction to the extended position, drives the latch 252a, disengaging the protrusion 211b. This allows the protrusion 211b to separate from the latch 252a, and the movement of the cylinder 202 integral with the end portion 201b is unrestricted. Therefore, the cylinder 202 can move relative to the base 205 from the position before the operation of the operation unit 120. In other words, the cylinder 202 can move in the X direction relative to the base 205.

[0109] 9 and 10, the spring force stored in the compressed spring 268 causes the cylinder 202 to move in the -X direction. At this time, the rod 203 does not move relative to the base 5. When the cylinder 202 moves in the -X direction due to the spring force of the spring 268, the link 1 also moves in the -X direction. As a result, the movement of the link 1 causes the door leaf 10 to be unlocked by the locking mechanism 110. Furthermore, the unlocking operation causes the spring 253 to contract and a spring force is stored in the spring 253. At this time, a spring force that balances the spring force of the spring 253 is stored in the spring 268.

[0110] <Return operation> When the door is to be closed, for example when the vehicle starts to travel, the manual door release device 200 performs a reset operation.

[0111] In the return operation, first, the unlocked state of the latch on the handle of the operation unit 120 is released. Then, the wire cable 123 returns to its original position. With this operation, the spring force stored in the spring 253 by the unlocking operation moves the enlarged diameter portion 252 in the +X direction. At this time, the wire fixing part 266, the rod 265, the rod 203, and the expanded diameter end 206 move integrally from the -X direction to the +X direction. At the same time, the cylinder 202 is also moved in the +X direction by being pressed by the expanded diameter part 252 and the expanded diameter end 206. The wire fixing part 266 and the rod 265 also move in the X direction by the spring force of the spring 253, and return to their original positions together with the wire cable 123. The protrusion 211b moves in the +X direction together with the cylinder 202, and returns to its original position together with the latch 252a.

[0112] At the same time, the actuator 214 is excited by a higher-level command, the actuator rod 214a retracts in the -X direction, the latch 252a engages with the protrusion 211b, and the EVAC returns to its initial state.

[0113] In this embodiment, it is possible to achieve the same effects as the above-described embodiment.

[0114] In the manual door release device 200 of this embodiment, since the force can be absorbed by the force accumulation unit 230, the unlocking unit 140 will not break even if the operating unit 110 is operated with a strong force.

[0115] The force storage unit 230 includes a regulating unit 140 that regulates the transmission of a predetermined amount of force to the unlocking unit 150, and when a release signal is received, the regulation is released by driving the regulating unit 140, allowing the predetermined amount of force to be transmitted to the unlocking unit 150 and unlocking the locking mechanism 110, making it possible to determine whether or not to unlock, thereby improving safety.

[0116] The unlocking section 150 is equipped with a cylinder 251 and an expanding section 252. The expanding section 252 is connected to transmit the output of the power storage section 230, thereby enabling power to be stored in an emergency and the lock to be released.

[0117] Since the force accumulating unit 230 is capable of accumulating force by the biasing force of the spring 268, it is possible to set the amount of accumulated force and to eliminate the need for a drive power source or the like.

[0118] The unlocking section 150 is equipped with a cylinder 251 and an enlarged diameter section 252, and is provided with a spring 253 that returns the position of the enlarged diameter section 252 and the position of the spring 268 of the force accumulation section 230 to the positions before force accumulation, thereby enabling a rapid return operation.

[0119] The restriction unit 140 includes an actuator 214 that releases the restriction on the transmission of the force stored in the force storage unit 230 to the unlocking unit 150, thereby making it possible to easily lock and unlock the door.

[0120] The unlocking unit can be operated by the force stored in the power storage unit through emergency operations, so the operator does not need to perform a two-step operation. At the same time, the higher-level regulating unit can determine whether or not to unlock, so the door can be opened after the driver, station staff, train control unit, etc. have determined whether or not to unlock the door. This improves safety. Even if the operating unit is pulled with great force, the force can be absorbed by the power storage unit, so the unlocking unit will not break.

[0121] The force storage unit includes a regulating unit that regulates the transmission of the specified amount of force to the unlocking unit, and when a release signal is received, the regulation is released by driving the regulating unit, allowing the specified amount of force to be transmitted to the unlocking unit, thereby unlocking the locking mechanism. This allows a stage to be set up for determining whether or not the door can be unlocked, improving safety.

[0122] The operating unit includes an interior operating unit that can be operated from inside the vehicle and an exterior operating unit that can be operated from outside the vehicle, and the force storage unit includes an interior force storage unit that stores force produced when the interior operating unit is operated, and an exterior force storage unit that stores force produced when the exterior operating unit is operated. This allows the door locks to be unlocked independently from either inside or outside the vehicle. It becomes possible.

[0123] The unlocking section includes a cylinder and a piston, and is connected to the piston so that the output of the vehicle interior force accumulator and the output of the vehicle exterior force accumulator are transmitted to the piston. This allows the outside and inside of the vehicle to store power independently, allowing the locks to be released without interfering with each other.

[0124] The unlocking section has a synchronization mechanism that synchronizes a movement of the piston caused by the transmitted output of the vehicle interior force accumulator with a movement of the piston caused by the output of the vehicle exterior force accumulator. This prevents operations inside and outside the vehicle from interfering with each other, improving operational reliability in an emergency and improving safety.

[0125] The force accumulating section is capable of accumulating force by the biasing force of a spring. This makes it possible to set the amount of stored energy and eliminates the need for a drive power source or the like.

[0126] The unlocking section includes a cylinder and a piston, and is provided with a spring that returns the position of the piston and the position of the spring in the force storing section to their positions before force storage. This enables a quick return operation.

[0127] The regulating portion includes a latch lever that regulates the transmission of the force stored in the force storage portion to the unlocking portion, and an actuator that drives the latch lever to release the regulation of the transmission to the unlocking portion. This makes it possible to easily lock and unlock the door.

[0128] The unlocking part includes a cylinder and a piston, the piston is formed with a hook part, and one end of the latch lever is formed with a hook part that can be hooked onto the hook part, thereby improving the reliability of preventing malfunction.

[0129] A roller is provided at the other end of the latch lever, and the actuator in contact with the roller rotates the roller to release the restriction on the transmission of the force stored in the force storage unit to the unlocking unit. This improves the ease of operation in contact between the actuator and the roller, and allows the actuator to be made smaller.

[0130] The piston has a first hook portion and a second hook portion, the latch lever is provided as a pair so as to be hooked to the first hook portion and the second hook portion so as to sandwich the piston, The rollers are provided at the other ends of the pair of latch levers so as to be in contact with the actuator so as to sandwich the actuator, thereby smoothing the movement of the latch levers, improving ease of operation in contact between the actuator and the rollers, and enabling smooth transmission of operation to the unlocking section.

[0131] A detection unit is provided that detects that force is stored in the force storage unit by the operation of the operation unit. This enables a stage in which a higher-level regulating unit determines whether or not to unlock the vehicle based on the detection result of the detection unit, so that a crew member, station staff, train control unit, etc. can determine whether or not to release the lock.

[0132] The manual door release device of the present invention can be applied by appropriately selecting and combining the individual configurations in the above-described embodiments. Furthermore, the individual configurations in the above-described embodiments can be modified as appropriate. For example, the force accumulating unit 130 may accumulate force using an elastic member other than the springs 68, 78. For example, air may be used as the elastic member. In this case, a configuration may be considered in which the cylinders 6, 7 of the force accumulating unit 130 have high airtightness, and the -Y direction ends of the rods 3, 4 act as pistons. Alternatively, a configuration may be considered in which the elastic member has high elasticity, such as rubber.

[0133] For example, the operation unit 120 may be rigidly connected to the force accumulation unit 130 without using the wires 123, 124 to the wire fixing units 66, 76. Here, when the wires 123, 124 are used, the degree of freedom in arranging the operation unit 120 relative to the force accumulation unit 130 can be increased.

[0134] Alternatively, a configuration is possible in which when the force stored in the force storing unit 130 reaches a certain level or more, the force is transmitted to the unlocking unit 150, thereby enabling the door to be unlocked. In this case, a configuration in which the restriction unit 140 is not provided can be adopted.

[0135] Furthermore, it is also possible that the operation unit 120 does not include both the interior operation unit 121 and the exterior operation unit 122. In this case, only one of the interior operation unit 121 and the exterior operation unit 122 can be provided.

[0136] Moreover, the manual door release device 200 in the second embodiment can be provided on both the inside and outside of the vehicle.

[0137] Alternatively, the actuator 14 of the unlocking unit 140 may be configured so that the actuator rod 14a can be extended and retracted in a direction other than the -X direction. In this case, it is preferable to change the rotation axis of the rollers 13a and 13b according to the extension and retraction direction of the actuator rod 14a.

[0138] Furthermore, in the manual door release device 200 in the second embodiment, as in the unlocking unit 140 in the first embodiment, a first hooked portion (groove) 152a and a second hooked portion (groove) 152b are provided on the cylinder 202, a pair of latch levers 11, 12 having a first hooked portion (claw) 11b and a second hooked portion (claw) 12b hooked thereon are installed on the base 5 so as to be rotatable by the rotation shafts 11a, 12a, and rollers 13a, 13b are provided on the ends (other ends) in the -X direction of the latch levers 11, 12, and the rollers 13a, 13b can contact the actuator rod 14a so as to sandwich it. In this case, the actuator 214 can reciprocate the actuator rod 14a in the X direction. The manual door release device may be rotated by any angle around the X-axis. As long as the direction of the rod 1 connected to the lock mechanism 110 coincides with the direction required for driving the lock mechanism 110, the direction of the arrangement is not particularly limited. [Explanation of symbols]

[0139] 100,200…Manual door release device 2…Block 2a,2b…Groove 3,4…Rod 5. Bass 6,7…Cylinder 10…Door leaf 11,12…Latch lever 11a, 12a...Rotation shaft 11b, 12b…Claws (hooks) 13a, 13b…Laura 14...Actuator 14a...Actuator rod 21...Central part 22,23...Arm part 62,72…Link section 62a,62b,72a,72b...Link 65,75...Cylinder end 66,76…Wire fixing part 68,78…Spring 105…Platform 110...Lock mechanism 120...Operation unit 121…Inside operation unit 122...Vehicle outside operation section 123, 124...Wire (wire cable) 130...Power storage section 131…Inside energy storage unit 132…Vehicle outside power storage section 140…Regulation Department 150…Unlocking section 151...Cylinder 152…Piston 152a, 152b...Groove (hooking portion) 153…Spring 161~164…Detection unit (switch) 201b...end 202...Cylinder 203…Rod 205…base 206...Expanded diameter end 211b...Protrusion 214...Actuator 214a...actuator rod 214b,214c...Link 230…Power storage section 251…Cylinder 252...Expanded diameter part 252a…Latch 253…Spring 265…Rod 266…Wire fixing part 268…Spring

Claims

1. a locking mechanism that locks a door leaf that moves to open and close a boarding / alighting door of a railroad vehicle by a driving force from a driving source when the door leaf is in a fully closed position; An operation unit that is manually operated; a force accumulation unit that accumulates a predetermined amount of the operating force generated by the manual operation; an unlocking unit that transmits the predetermined amount of force stored in the force storage unit to unlock the locking mechanism; Equipped with The force storage unit includes a restricting unit that restricts the transmission of the predetermined amount of force to the unlocking unit, and when a release signal is received, the restricting unit is driven to release the restriction, allowing the predetermined amount of force to be transmitted to the unlocking unit, thereby unlocking the locking mechanism; The operation unit includes: An inside operation unit that can be operated from inside the vehicle; An exterior operation unit that can be operated from outside the vehicle; Including, The force storage unit is an interior force storing unit that stores a force generated when the interior operation unit is operated; an exterior force storing unit that stores a force generated when the exterior operation unit is operated; Including, the unlocking unit includes a cylinder and a piston, and the piston is connected to receive an output from the vehicle interior force storage unit and an output from the vehicle exterior force storage unit; a detection unit is provided that detects that a force is stored in the force storage unit by the operation of the operation unit, The detection unit detects that a force has been stored in the force storage unit of one or both of the vehicle interior operation unit and the vehicle exterior operation unit, which are independently operable, and issues a signal for requesting unlocking. Manual door release device.

2. the unlocking unit has a synchronization mechanism that synchronizes a movement of the piston caused by the transmitted output of the vehicle interior force storage unit with a movement of the piston caused by the transmitted output of the vehicle exterior force storage unit.

2. The manual door release device of claim 1.

3. The force storing unit is capable of storing force by a biasing force of a spring.

2. The manual door release device of claim 1.

4. The unlocking unit includes a cylinder and a piston, and a spring is provided to return the position of the piston and the position of the spring of the force storing unit to positions before force storage.

4. The manual door release device of claim 3.

5. The regulating portion is a latch lever that restricts the transmission of the force stored in the force storage unit to the unlocking unit; An actuator that drives the latch lever to release the transmission restriction to the unlocking unit.

2. The manual door release device of claim 1.

6. The unlocking unit includes a piston to which the output of the force storing unit is transmitted, and a cylinder into which the piston is inserted so as to be capable of reciprocating motion. The piston is formed with a hook portion, A hook portion capable of being hooked onto the hooked portion is formed on one end of the latch lever.

6. The manual door release device of claim 5.

7. A roller is provided at the other end of the latch lever, and the actuator in contact with the roller rotates the roller to release the restriction on the transmission of the force stored in the force storage unit to the unlocking unit.

6. The manual door release device of claim 5.

8. The unlocking unit includes a piston to which the output of the force storing unit is transmitted, and a cylinder into which the piston is inserted so as to be capable of reciprocating motion. The piston has a first hook portion and a second hook portion, the latch lever is provided in pair so as to be hooked to the first hook portion and the second hook portion so as to sandwich the piston, The rollers are provided at the other ends of the pair of latch levers so as to be in contact with the actuator so as to sandwich the actuator therebetween.

8. The manual door release device of claim 7.

9. The force storage unit includes a cylinder and a rod, The cylinder of the unlocking unit and the cylinder of the force storing unit are positioned in parallel.

2. The manual door release device of claim 1.

10. A manual door release device according to any one of claims 1 to 9, The door leaf; Equipped with Railway vehicle door equipment.

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