JP7001440B2 - Jumper coupler lock device - Google Patents

Description

The present invention relates to a jumper coupler locking device, and more particularly to a jumper coupler locking device for connecting jumper wires connected across railcars.

Generally, in a railroad vehicle, for example, in order to transmit control signals for traveling, various information signals for Ethernet (registered trademark), etc. between the vehicles, jumper wires are connected across the vehicles. Jumper couplers are provided at both ends of the jumper line so that they can be attached and detached according to the train formation and the like. In the lock device of this jumper coupler, for example, a locking pin is arranged on the receptacle side fixed to the low-pressure tsunagi box of the vehicle, and the locking pin is formed on the plug side connected to the jumper wire so as to be able to be combined with the locking pin. A jumper coupler locking device is known in which an operating lever member having an engaged engagement claw is rotatably arranged. However, in such a lock device structure, it is possible to remove the engagement between the locking pin and the engaging claw by one action without using a tool, so that the lock is erroneously released due to an operation error. There was a risk and there were safety concerns.

As a measure for preventing the above-mentioned erroneous unlocking, for example, Patent Document 1 discloses a lock device 100 for a jumper coupler having a double lock structure. That is, as shown in FIGS. 5 to 7, the lock device 100 of the jumper coupler of Patent Document 1 has a plug 102 having a contact portion connected to the jumper wire 101 for a railroad vehicle and a plug 102 fixed to the vehicle body side. The receptacle 103 includes a receptacle 103 having a contact portion for energizing the battery, and the receptacle 103 has a lid 104 that rotatably closes the opening 103b of the receptacle body 103a into which the plug 102 is inserted. The plug 102 is configured to be connected in the open state.

Further, the lid body 104 has a pivot portion 104a rotatably supported by the receptacle main body 103a, and the receptacle main body 103a is provided with a rotation restricting member (cam metal fitting) 105. The lid 104 cannot be engaged with the pivot portion 104a of the lid 104 in the closed state and can be engaged in the open state, and the closing operation of the lid 104 is restricted by the engagement. Further, while the engaging protrusion 104b is formed on the lid 104, the engaging recess 102a with which the engaging protrusion 104b engages with each other in a connected state between the receptacle 103 and the plug 102 is formed on the plug 102. Has been done.

Further, the rotation restricting member 105 is configured by connecting an operation lever 105a on the outside in the sleeper direction and a shaft portion 105b on the inside, respectively, and the shaft portion 105b is rotatably supported by the receptacle main body 103a. The rotation restricting member 105 is constantly urged toward the center side of the receptacle main body 103a by a compression spring 105e mounted on the outer periphery of the shaft portion 105b.

The lock operation procedure in the lock device 100 of the jumper coupler having the above configuration is performed as follows. That is, after the plug 102 is completely inserted into the receptacle 103 with the lid 104 open, the operation lever 105a of the rotation restricting member 105 is moved to the axis of the receptacle body 103a with the lid 104 slightly lifted upward. Pull in the direction orthogonal to (outside in the direction of the pillow) to unlock the open state of the lid 104 by the rotation restricting member 105.

Next, while maintaining the state in which the operating lever 105a is pulled outward, the lid 104 is closed so as to push the engaging protrusion 104b of the lid 14 into the engaging recess 102a of the plug 102, and their engagement relationship is established. Lock the plug 102 with. Further, after locking the plug 102, while pulling the operation lever 105a outward, the operation lever 105a is rotated about the axis until the alignment marks 104c and 105c of the lid 104 and the rotation restricting member 105 are aligned. Stop at the position where the alignment marks 104c and 105c meet, and return the operation lever 105a to the inside.

As a result, the restricted surface 105d of the rotation restricting member 105 comes into contact with the regulated surface 104d of the pivot portion 104a of the lid 104, and the engaging protrusion 104b of the lid 14 comes off from the engaging recess 102a of the plug 102. It is also prevented from doing so, and it is in a double-locked state. Further, the double lock state can be visually confirmed by visually observing that the alignment marks 104c and 105c of the lid body 104 and the rotation restricting member 105 match.

Japanese Patent Application Laid-Open No. 2003-346980

However, in the lock device 100 of the jumper coupler, it is necessary to perform a complicated operation in order to form a double lock state. Specifically, "while maintaining the state in which the operation lever 105a is pulled outward, the lid 104 is closed so as to push the engaging protrusion 104b of the lid 104 into the engaging recess 102a of the plug 102, and the plug 102 It was necessary to simultaneously perform an operation of pulling the operation lever 105a and an operation of closing the lid 104 (two types of operations) as in the operation of locking the lid 104a.

Further, "while pulling the operation lever 105a outward, the operation lever 105a is further rotated about the axis until the alignment marks 104c and 105c of the lid 104 and the rotation restricting member 105 are aligned, and the alignment mark 104c, An operation of pulling the operation lever 105a, an operation of rotating the operation lever, and an operation of returning the operation lever 105a to a predetermined rotation position (three types of operations) are continuously performed, as in the operation of stopping at the position where the 105c is aligned and returning the operation lever 105a to the inside. I had to do it.

Therefore, in order to put the lock device 100 of the jumper coupler in the double lock state, there is a problem that the operator is forced to perform a troublesome and complicated operation. Further, it was not easy to visually judge from a distance whether or not the alignment marks 104c and 105c of the lid body 104 and the rotation restricting member 105 match. Further, there is a problem that the structure of the rotation restricting member 105 is complicated and easily breaks down.

The present invention has been made to solve such a problem, and an object of the present invention is to provide a highly safe jumper coupler locking device capable of a double lock state with a simple structure and operation.

In order to achieve the above object, the jumper coupler locking device according to the present invention has the following configuration.
(1) An operation lever member having a locking pin arranged on the receptacle side fixed to the connection portion of the vehicle and having an engaging claw formed so as to be compatible with the locking pin on the plug side connected to the jumper wire. It is a lock device for a jumper coupler that is rotatably arranged.
A second locking pin is formed on the tip of the operating lever member extending from the center of rotation to the side opposite to the center of rotation for a distance longer than the distance from the center of rotation to the engaging claw.
The connecting portion is rotatably provided with a restricting member that engages with the second locking pin to restrict the rotation of the operating lever member when the engaging claw is in a state of being aligned with the locking pin. It is characterized by that.

In the present invention, the operation lever member is formed with a second locking pin at a tip portion extending from the rotation center to the opposite side of the engagement claw from the rotation center to the engagement claw longer than the distance. The connection portion is rotatably provided with a restricting member that engages with the second locking pin to regulate the rotation of the operating lever member when the engaging claw is in the engaged state with the locking pin. After rotating the operation lever member so that the claw is in a state of being aligned with the locking pin, the regulating member is rotated to engage the second locking pin of the operating lever member with the regulating member (so-called two-action). Therefore, a double lock state in the lock device of the jumper coupler can be easily realized. In this case, since it is a two-action method, the risk of accidentally unlocking due to an operation error can be greatly reduced.

Further, the operating lever member rotates and the engaging claw is in a state of being aligned with the locking pin, so that the engaging claw is locked with the plug inserted in the receptacle. When the engaging claw is in the engaged state with the locking pin, the second locking pin formed at the tip of the operating lever member is stationary at a position where it can engage with the regulating member, and the hand is released from the operating lever member. But it doesn't move. Therefore, next, the locking device of the jumper coupler can be put into the double locked state only by rotating the regulating member to engage the second locking pin of the operating lever member with the regulating member. Therefore, the lock device of the jumper coupler can be put into a double-locked state without performing a complicated operation, and the safety can be enhanced.

Further, since the second locking pin is formed at the tip of the operation lever member arranged on the plug side and the restricting member that engages with the second locking pin is rotatably provided on the connecting portion side, the locking device is provided. The structure can also be simplified. Further, since the operation lever member has a second locking pin formed at the tip portion extending from the rotation center to the opposite side to the engaging claw for a distance longer than the distance from the rotation center to the engaging claw, the rotation is performed. The distance from the center of movement to the second locking pin is longer than the distance from the center of rotation to the engaging claw, and the load on the regulating member due to the rotation regulation of the operating lever member can be reduced by the principle of the lever. The structure of the regulating member can be simplified.

Therefore, according to the present invention, it is possible to provide a highly safe jumper coupler lock device capable of a double lock state with a simple structure and operation. It should be noted that the operation of rotating the operation lever member so that the engaging claw is aligned with the locking pin and the operation of inserting the plug into the receptacle may be configured to be interlocked, but they are performed separately. It may be configured to allow.

(2) In the jumper coupler locking device described in (1),
The second locking pin is arranged substantially parallel to the end surface of the connection portion, and the restricting member extends from a position where it stands upright with respect to the end surface of the connection portion via a hinge portion to a position where it falls down substantially parallel to the end surface. Mounted rotatably,
When the restricting member engages with the second locking pin, the second locking pin is sandwiched and held between the end surface of the connecting portion and the restricting member.

In the present invention, the second locking pin is arranged substantially parallel to the end surface of the connecting portion, and the restricting member is positioned to lie down substantially parallel to the end surface of the connecting portion from a position where it stands up via the hinge portion. When the restricting member engages with the second locking pin, the second locking pin is sandwiched and held between the end face of the connection portion and the restricting member, so that the jumper connector is mounted rotatably. In the double-locked state of the locking device, the end face of the connecting portion can regulate the movement of the second locking pin in a direction away from the state of being engaged with the regulating member. Therefore, the rotation of the operation lever member can be regulated by a simpler structure.

(3) In the jumper coupler locking device described in (2),
The regulating member comprises a long regulating plate in which a second engaging claw that engages with the second locking pin is formed in an intermediate portion in the longitudinal direction.
The long restricting plate is characterized in that it is detachably fixed by a catch clip held by a spring force with respect to the end surface of the connecting portion at a position facing the hinge portion.

In the present invention, the restricting member includes a long restricting plate in which a second engaging claw that engages with the second locking pin is formed in an intermediate portion in the longitudinal direction, and the long restricting plate faces the hinge portion. At the position, it is detachably fixed with a catch clip that is held by a spring force with respect to the end face of the connection part, so it is formed in the middle part of the long regulation plate corresponding to a lever that rotates around the hinge part as a fulcrum. The second locking pin can be regulated by the two engaging claws. Therefore, the spring force of the catch clip can be reduced by the principle of leverage, and the regulating member can be fixed with a simpler operation.

(4) In the jumper coupler locking device according to any one of (1) to (3).
The rotation locus of the operating lever member and the rotation locus of the regulation member are substantially orthogonal to each other.

In the present invention, since the rotation locus of the operating lever member and the rotation locus of the restricting member are substantially orthogonal to each other, the operation of inserting and removing the plug from the receptacle and the locking pin formed on the receptacle side can be used as the operating lever member. The restricting member can be easily retracted to a position where it does not interfere with the operation of engaging and disengaging the engaging claws. Therefore, it is possible to realize a double lock state of the lock device of the jumper coupler by a simpler operation without causing the restricting member to perform a complicated operation.

(5) In the jumper coupler locking device according to any one of (1) to (4).
The jumper coupler is a jumper coupler for Ethernet.

In the present invention, since the jumper coupler is an Ethernet jumper coupler, it is possible to realize a double lock state of the lock device of the Ethernet jumper coupler with a simpler structure and operation. Therefore, the safety of the jumper coupler for Ethernet can be further enhanced.

According to the present invention, it is possible to provide a highly safe jumper coupler locking device capable of a double lock state with a simple structure and operation.

It is a side view of the lock device of the jumper coupler which concerns on embodiment of this invention. FIG. 1 is an arrow view taken along the line AA shown in FIG. FIG. 2 is a cross-sectional view taken along the line BB shown in FIG. It is operation explanatory drawing of the lock device of the jumper coupler shown in FIG. (A) shows a state before inserting the plug into the receptacle, and (B) shows a state where the locking pin is in contact with the receiving groove of the operating lever member at the stage of starting inserting the plug into the receptacle. (C) indicates a state in which the locking pin rotates the operation lever member while the plug is being inserted into the receptacle, and (D) indicates that the plug has been inserted into the receptacle and the operation lever member is rotated. Indicates the state in which is regulated by the regulating member. It is sectional drawing which shows the connection state of the jumper coupler described in Patent Document 1. FIG. It is a schematic block diagram of the rotation restricting member of the jumper coupler shown in FIG. It is a detailed view showing the relationship between the pivot part of the lid body shown in FIG. 5 and the rotation restricting member.

Next, the jumper coupler locking device according to the embodiment of the present invention will be described in detail with reference to the drawings. Specifically, the configuration of the jumper coupler locking device according to the present embodiment (mainly the configuration of the operation lever member and the regulation member) will be described in detail, and then the operation procedure will be briefly described.

<Configuration of lock device for this jumper coupler>
First, the configuration of the lock device for the jumper coupler according to the present embodiment will be described with reference to FIGS. 1 to 3. FIG. 1 shows a side view of a lock device for a jumper coupler according to an embodiment of the present invention. FIG. 2 shows an arrow view taken along the line AA shown in FIG. FIG. 3 shows a sectional view taken along the line BB shown in FIG.

As shown in FIGS. 1 to 3, the lock device 10 of the jumper coupler 20 according to the present embodiment has a locking pin 4 arranged on the receptacle 3 side fixed to the low-pressure tsunagi box (connection portion) 2 of the vehicle 1. A jumper coupler lock in which an operation lever member 7 having an engaging claw 711 formed so as to be in contact with the locking pin 4 is rotatably arranged on the plug 6 side connected to the jumper wire 5. It is a device. The jumper coupler 20 can be used, for example, as a jumper coupler for Ethernet, but is not limited thereto. Further, the low-voltage jumpsuit box (connection portion) 2 can be replaced with another terminal box, bracket, or the like.

The low-pressure jumpsuit box 2 is formed at the front end portion and the rear end portion in the rail direction of the vehicle 1. The receptacle 3 is fixed to the end surface (front end surface 21 or rear end surface 22) of the low-pressure jumpsuit box 2 and is connected to the communication wiring 23 in the vehicle. A pair of left and right locking pins 4 are radially projected from the annular wall 31 that protects the terminal portion in the receptacle 3. An operating lever member 7 having an engaging claw 711 that meshes with the locking pin 4 is attached to the plug 6 connected to the receptacle 3 so as to rotate in the longitudinal direction of the jumper wire 5.

Further, the operation lever member 7 includes a pair of left and right lever main body portions 70 formed in a substantially L shape in a side view. The lever main body 70 is formed in a plate shape, and is rotatably supported with respect to the left and right side walls of the main body case 61 of the plug 6. Further, each of the pair of left and right lever body portions 70 is formed with slit groove portions 75 that open in a beak shape from the base end portion 71 to the L-shaped bent portion.

Further, at the base end portion 71 of the lever main body portion 70, a hook-shaped engaging claw 711 that engages with the locking pin 4 of the receptacle 3 and the locking pin 4 are received as the plug is inserted, and the operation lever is operated. A receiving groove 712 for rotating the member 7 is formed with the slit groove portion 75 interposed therebetween. Further, the base end portion 71 is formed with a cam groove 713 adjacent to the receiving groove 712 to rotate the operation lever member 7 when the locking pin 4 comes into contact with the base end portion 71. The rotation center 74 of the lever main body 70 is provided at the base end 71 on the side where the receiving groove 712 and the cam groove 713 are formed.

Further, the operation lever member 7 has a second locking pin on a tip portion 72 extending from the rotation center 74 to the opposite side of the engagement claw 711 from the rotation center 74 to the engagement claw 711. 73 is formed. The second locking pin 73 is arranged so that the distance from the rotation center 74 to the second locking pin 73 is, for example, about 3 to 5 times longer than the distance from the rotation center 74 to the engaging claw 711. ing. The second locking pin 73 is located at a position facing the engaging claw 711, and is formed so as to connect the pair of left and right lever body portions 70 in parallel. Further, the second locking pin 73 is arranged at a position farthest from the main body case 61 of the plug 6 in a state where the locking pin 4 and the engaging claw 711 are in a state of being in contact with each other.

Further, in the low-pressure jumpsuit box 2, when the engaging claw 711 is in a state of being aligned with the locking pin 4, the regulating member 8 that engages with the second locking pin 73 to regulate the rotation of the operating lever member 7. Is rotatably provided. The second locking pin 73 is arranged substantially parallel to the end surface (front end surface 21 or rear end surface 22) of the low-pressure jumpsuit box 2, and the restricting member 8 is provided via the hinge portion 84 with respect to the end surface of the low-pressure jumpsuit box 2. It is rotatably mounted from a position where it stands up substantially vertically to a position where it lies down substantially in parallel. Further, when the regulating member 8 engages with the second locking pin 73, the second locking pin 73 is sandwiched and held between the end surface of the low-pressure jumpsuit box 2 and the regulating member 8.

Further, the restricting member 8 includes a long restricting plate 81 in which a second engaging claw 82 that engages with the second locking pin 73 is formed in an intermediate portion in the longitudinal direction, and the long restricting plate 81 has a hinge portion. It is formed so as to be detachably fixed by a catch clip 85 held by a spring force with respect to the end surface of the low pressure tuna box 2 at a position facing the 84 (tip portion 83). A U-groove 831 that engages with the catch clip 85 is formed on the tip portion 83 of the long regulation plate 81. The second engaging claw 82 extends along the width direction at the intermediate portion of the long restricting plate 81, and is formed by bending at a right angle. The second engaging claw 82 is formed to have substantially the same length as the shaft portion of the second locking pin 73, and engages with the shaft portion of the second locking pin 73.

Further, the catch clip 85 is fixed to the fastener 25 fastened to the side end surface 24 of the low-pressure jumpsuit box 2. The catch clip 85 includes a base body 851 fixed to the stopper 25, a lever body 852 that rotates with respect to the base body 851, a U-shaped arm body 853 connected to the lever body 852, and a U-shaped body. It is provided with a tension spring member 854 mounted on the arm body 853. The U-shaped arm body 853 is formed so as to engage with the U groove 831 of the long regulation plate 81.

Since the rotation locus P of the operation lever member 7 and the rotation locus Q of the regulation member 8 are substantially orthogonal to each other, the operation of inserting and removing the plug 6 with respect to the receptacle 3 and the locking pin 4 formed on the receptacle 3 side are performed. The long regulating plate 81 of the regulating member 8 can be easily retracted to a position where it does not interfere with the operation of engaging and disengaging the engaging claw 711 of the operating lever member 7. Further, in the second locking pin 73, the distance from the rotation center 74 to the second locking pin 73 is longer than the distance from the rotation center 74 to the engaging claw 711 (for example, about 3 to 5 times longer). Since it is arranged in such a manner, the load on the regulating member 8 due to the rotation regulation of the operating lever member 7 can be significantly reduced, and the structure of the regulating member 8 can be simplified.

<Operation procedure of the lock device of this jumper coupler>
First, the operation procedure of the lock device of the jumper coupler according to the present embodiment will be described with reference to FIG. FIG. 4 shows an operation explanatory diagram of the lock device of the jumper coupler shown in FIG. FIG. 4A shows a state before inserting the plug into the receptacle, and FIG. 4B shows the locking pin abuts on the receiving groove of the operating lever member at the stage of starting inserting the plug into the receptacle. FIG. 4C shows a state in which the locking pin rotates the operation lever member while the plug is being inserted into the receptacle, and FIG. 4D shows the state in which the plug is inserted into the receptacle. The state in which the rotation of the operating lever member is regulated by the regulating member is shown.

First, as shown in FIG. 4A, the axis of the plug 6 and the axis of the receptacle 3 are aligned with each other to hold the plug 6. At this time, the operation lever member 7 is rotated in advance to the axial center position where the receiving groove 712 comes into contact with the locking pin 4 on the receptacle side. Further, the regulating member 8 is held in a state of being substantially vertically upright with respect to the end surface of the low-pressure jumpsuit box 2 via the hinge portion 84.

Next, as shown in FIG. 4B, the plug 6 is moved along the axial direction, the plug 6 is brought close to the receptacle 3, and the insertion is started. When the plug 6 starts to be inserted into the receptacle 3, the receiving groove 712 of the operating lever member 7 comes into contact with the locking pin 4 on the receptacle side.

Next, as shown in FIG. 4C, when the plug 6 is further inserted into the receptacle 3, the operating lever member 7 is pushed by the receiving groove 712 and the cam groove 713 adjacent to the receiving groove 712 to the locking pin 4. Then, it rotates clockwise with the rotation center 74 as a fulcrum. By rotating the operating lever member 7 clockwise, the second locking pin 73 moves to a position close to the end surface 21 (22) of the low-pressure jumpsuit box 2 and the regulating member 8.

Next, as shown in FIG. 4D, when the plug 6 is completely inserted into the receptacle 3, the engaging claw 711 of the operating lever member 7 and the locking pin 4 are aligned with each other. When the engaging claw 711 is in a state of being engaged with the locking pin 4, the second locking pin 73 formed at the tip of the operating lever member 7 is stationary at a position where it can engage with the regulating member 8. ..

Next, the long regulation plate 81 of the regulation member 8 is rotated around the hinge portion 84 to a position where it falls down substantially parallel to the end surface (front end surface 21 or rear end surface 22) of the low-pressure jumpsuit box 2. Further, by rotating the lever body 852 of the catch clip 85, the U-groove 831 of the long regulation plate 81 is engaged with the U-shaped arm body 853, and the lever body 852 is returned so as to be parallel to the base body. The spring force of the tension spring member 854 presses the tip of the long regulation plate 81 against the tip 251 of the fastener 25. At this time, the second engaging claw 82 of the regulating member 8 is held in a state of being engaged with the second locking pin 73 of the operating lever member 7. As a result, the lock device 10 of the jumper coupler 20 is in a double lock state.

<Action effect>
According to the lock device 10 of the jumper coupler 20 according to the present embodiment described in detail above, the operation lever member 7 is engaged with the operation lever member 7 from the rotation center 74 to the opposite side to the engaging claw 711 from the rotation center 74. A second locking pin 73 is formed on the tip portion 72 extending longer than the distance to the mating claw 711, and the engaging claw 711 is in a state of being aligned with the locking pin 4 on the low pressure tsunagi box (connection portion) 2. Since the restricting member 8 that engages with the second locking pin 73 and restricts the rotation of the operating lever member 7 is rotatably provided, the engaging claw 711 is in a state of being aligned with the locking pin 4. After rotating the operation lever member 7 so as to be The double lock state in the lock device 10 of the coupler 20 can be easily realized. In this case, since it is a two-action method, the risk of accidentally unlocking due to an operation error can be greatly reduced.

Further, the operation lever member 7 is rotated so that the engaging claw 711 is in a state of being engaged with the locking pin 4, so that the plug 6 is locked with the plug 6 inserted into the receptacle 3. When the engaging claw 711 is in the meshing state with the locking pin 4, the second locking pin 73 formed on the tip portion 72 of the operating lever member 7 is stationary at a position where it can engage with the regulating member 8. It does not move even if the hand is released from the operation lever member 7. Therefore, next, the locking device 10 of the jumper coupler 20 is put into a double-locked state only by rotating the regulating member 8 to engage the second locking pin 73 of the operating lever member 7 with the regulating member 8. Can be made to. Therefore, the lock device 10 of the jumper coupler 20 can be put into a double-locked state without performing a complicated operation, and the safety can be enhanced.

Further, a second locking pin 73 is formed on the tip portion 72 of the operation lever member 7 arranged on the plug 6 side, and the regulating member 8 that engages with the second locking pin 73 is rotated on the low-voltage jumpsuit box 2 side. The structure of the locking device 10 can be simplified because it is only prepared as possible. Further, the operation lever member 7 has a second locking pin on a tip portion 72 extending from the rotation center 74 to the opposite side of the engagement claw 711 from the rotation center 74 to the engagement claw 711. Since the 73 is formed, the distance from the rotation center 74 to the second locking pin 73 is longer than the distance from the rotation center 74 to the engaging claw 711, and the rotation of the operating lever member 7 is performed by the principle of the lever. The load on the regulating member 8 due to the regulation can be reduced, and the structure of the regulating member 8 can be simplified.

Therefore, according to the present embodiment, it is possible to provide a highly safe jumper coupler 20 lock device 10 capable of a double lock state with a simple structure and operation. Since the operation of rotating the operation lever member 7 so that the engaging claw 711 is in a state of being aligned with the locking pin 4 and the operation of inserting the plug 6 into the receptacle 3 are configured to be interlocked with each other. The operation has been further simplified.

Further, according to the present embodiment, the second locking pin 73 is arranged substantially parallel to the end faces 21 and 22 of the low-pressure jumpsuit box 2, and the regulating member 8 is arranged with respect to the end faces 21 and 22 of the low-pressure jumpsuit box 2. It is rotatably mounted from a position where it stands up substantially vertically via a hinge portion 84 to a position where it falls down substantially in parallel, and when the restricting member 8 engages with the second locking pin 73, the second locking pin 73 Is sandwiched and held between the end faces 21 and 22 of the low-pressure jumpsuit box 2 and the regulating member 8, so that the second locking pin 73 is regulated in the double-locked state of the locking device 10 of the jumper connector 20. The end faces 21 and 22 of the low-pressure jumpsuit 2 can be restricted from moving in a direction away from the state of being engaged with the member 8. Therefore, the rotation of the operation lever member 7 can be regulated by a simpler structure.

Further, according to the present embodiment, the regulating member 8 includes a long regulating plate 81 in which a second engaging claw 82 that engages with the second locking pin 73 is formed in an intermediate portion in the longitudinal direction, and is long. The restricting plate 81 is detachably fixed to the low-pressure tsunagi box 2 by a catch clip 85 held by a spring force at a position facing the hinge portion 84, so that the regulating plate 81 can be used as a lever that rotates around the hinge portion 84 as a fulcrum. The second locking pin 73 can be regulated by the second engaging claw 82 formed in the middle portion of the corresponding long regulation plate 81. Therefore, the spring force of the catch clip 85 can be reduced by the principle of leverage, and the regulating member 8 can be fixed with a simpler operation.

Further, according to the present embodiment, since the rotation locus P of the operation lever member 7 and the rotation locus Q of the regulation member 8 are substantially orthogonal to each other, the plug 6 is inserted and removed from the receptacle 3 and the receptacle 3 side is used. The restricting member 8 can be easily retracted to a position where it does not interfere with the operation of engaging and disengaging the engaging claw 711 of the operating lever member 7 with the formed locking pin 4. Therefore, the double lock state of the lock device 10 of the jumper coupler 20 can be realized by a simpler operation without causing the restricting member 8 to perform a complicated operation.

Further, according to the present embodiment, since the jumper coupler 20 is a jumper coupler for Ethernet, it is possible to realize a double lock state of the lock device of the jumper coupler for Ethernet with a simpler structure and operation. can. Therefore, the safety of the jumper coupler for Ethernet can be further enhanced.

<Modification example>
Although the locking device 10 of the jumper coupler 20 of the present embodiment has been described in detail above, the present invention is not limited to this, and various changes can be made without departing from the spirit of the present invention. For example, in the locking device 10 of the jumper coupler 20 of the present embodiment, when the plug 6 is inserted into the receptacle 3, the operating lever member 7 has a receiving groove 712 and a cam groove 713 adjacent to the receiving groove 712 as a locking pin 4. The structure is such that the insertion action of the plug 6 and the rotation action of the operation lever member 7 are interlocked so as to rotate clockwise with the rotation center 74 as a fulcrum. However, the structure is not limited to this, and for example, after the plug 6 has been inserted into the receptacle 3, the operating lever member 7 may be rotated to engage the engaging claw 711 with the locking pin 4. ..

The present invention relates to, for example, a jumper coupler locking device, and more specifically, the present invention can be used as a jumper coupler locking device for connecting jumper wires connected across railcars.

1 Vehicle 2 Low-pressure jumpsuit box (connection part)
3 Receptacle 4 Locking pin 5 Jumper wire 6 Plug 7 Operating lever member 8 Regulatory member 10 Locking device 20 Jumper coupler 21 End face (front end face)
22 End face (rear end face)
72 Tip part 73 Second locking pin 74 Rotation center 81 Long regulation plate 82 Second engagement claw 84 Hinge part 85 Catch clip 711 Engagement claw P, Q Rotation locus

Claims (4)

A locking pin is arranged on the receptacle side fixed to the connection portion of the vehicle, and an operation lever member having an engaging claw formed so as to be compatible with the locking pin on the plug side connected to the jumper wire is rotated. It is a lock device for a jumper coupler that is arranged so that it can be arranged.
A second locking pin is formed on the tip of the operating lever member extending from the center of rotation to the side opposite to the center of rotation for a distance longer than the distance from the center of rotation to the engaging claw.
The connecting portion is rotatably provided with a restricting member that engages with the second locking pin to restrict the rotation of the operating lever member when the engaging claw is in a state of being aligned with the locking pin. That ,
The second locking pin is arranged substantially parallel to the end surface of the connection portion, and the restricting member extends from a position where it stands upright with respect to the end surface of the connection portion via a hinge portion to a position where it falls down substantially parallel to the end surface. Mounted rotatably,
A jumper coupler characterized in that when the restricting member engages with the second locking pin, the second locking pin is sandwiched and held between the end face of the connecting portion and the restricting member . Locking device. In the jumper coupler locking device according to claim 1 ,
The regulating member comprises a long regulating plate in which a second engaging claw that engages with the second locking pin is formed in an intermediate portion in the longitudinal direction.
The jumper coupler locking device is characterized in that the long restricting plate is detachably fixed by a catch clip held by a spring force with respect to the end surface of the connecting portion at a position facing the hinge portion. .. In the jumper coupler locking device according to claim 1 or 2 .
A jumper coupler locking device characterized in that the rotation locus of the operating lever member and the rotation locus of the regulation member are substantially orthogonal to each other. The jumper coupler locking device according to any one of claims 1 to 3 .
The jumper coupler is a jumper coupler locking device, characterized in that it is a jumper coupler for Ethernet.

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