JP5508176B2 - Connector - Google Patents

Description

  The present invention relates to a connector for electrically connecting an insulated trolley wire and an electric wire.

  Conventionally, as shown in FIG. 9, a system that supplies power to a mobile device 4 such as a hoist crane from an insulated trolley wire 2 installed indoors is known. In this power feeding system, when installing the insulated trolley wire 2, the trolley wire connecting device 1 for connecting the ends of the insulated trolley wires 2 arranged in the longitudinal direction is used.

  Patent Document 1 discloses a trolley wire connecting device. In Patent Document 1, an insulating trolley wire has a plurality of conductors arranged on the left and right, and each conductor is exposed at an end portion in the longitudinal direction of the insulating trolley wire. On the other hand, the trolley wire connecting device is provided with conductor joints arranged in a line in the left-right direction, and the conductor of one insulating trolley wire and the conductor of the other insulating trolley wire are connected by corresponding conductor joints. In Patent Document 1, power is supplied to the conductor at the end of the insulating trolley wire 2 on the construction material 44 side.

JP-A 61-125937

  By the way, in such a power feeding system, there is a case where power is supplied to the conductor at the end of the insulated trolley wire on the trolley wire connecting device side. Here, in Patent Document 1, in order to supply power at the end of the insulated trolley wire on the trolley wire connecting device side, for example, it is conceivable to electrically connect the power supply wire to the conductor joint. However, the conductor joints are arranged side by side on the left and right, and are disposed at relatively close positions. Therefore, the electric wires connected to the conductor joints easily interfere with each other and are difficult to construct. Moreover, in order to ensure sufficient insulation distance between electric wires or between an electric wire and an insulated trolley wire, it can be considered that the conductor joints are largely separated from each other in the left and right directions. In this case, however, the size of the connector is increased.

  The present invention has been made in view of the above circumstances, and while suppressing the increase in size, the wires are less likely to interfere with each other and have excellent workability, and the insulation distance between the wires and the insulation distance between the wires and the insulated trolley wire are sufficient. It is an object to provide a connector that can be secured.

  In order to solve the above-mentioned problems, the connector of the present invention is provided with L-shaped terminals arranged side by side protruding from the lower end of the electric wire connecting portion, and connecting the trolley wires of the adjacent terminals. The protruding direction of the part is reversed, and both wire connecting portions are separated in the front-rear direction.

  Moreover, it is preferable that an electric wire connection hole is provided in each electric wire connection portion of the adjacent terminals, and the electric wire connection holes are shifted in the vertical direction.

  Moreover, it is preferable to incline the said electric wire connection part toward the side above the said trolley wire connection part.

  Preferably, the base is provided with a base on which the terminal is provided and a cover that covers the terminal, and the base is formed with a slide holding portion that holds the cover in a horizontally slidable and non-movable manner.

  Moreover, it is preferable that the base is formed with a slide restricting portion that restricts the movement of the cover in the sliding direction when the cover is disposed at a position covering the terminal.

  Moreover, it is preferable that an electric wire receiving portion disposed between the electric wire connected to the terminal and the cover attached to the base is formed on the base.

  In the present invention, while suppressing the increase in size, the interference between the electric wires can be prevented to improve the workability, and a sufficient insulation distance between the electric wires can be secured.

It is a perspective view which shows the connector which removed the cover of this embodiment. It is a perspective view which shows the construction state of a connector. It is a front view same as the above. It is principal part side sectional drawing which shows the state which the conductor connected using the connector. It is a perspective view which shows a base and a cover. It is a side view of the connector which removed the cover. It is a principal part perspective view of a connector. It is a top view which shows the connector which removed the cover of the other example. It is a perspective view which shows the conventional electric power feeding system.

  The present invention will be described with reference to FIGS. The connector 1 of the present embodiment shown in FIGS. 1 to 7 electrically connects the insulated trolley wires 2 arranged in the longitudinal direction to each other and feeds both insulated trolley wires 2 to the feed line in the power feeding system of the mobile device 4 shown below. It is used for electrical connection to the electric wire 5 consisting of In the following, a configuration similar to that of a power feeding system using a conventional connector will be described with reference to FIG. Moreover, below, it demonstrates on the basis of the direction of a construction state, demonstrates the longitudinal direction of the insulated trolley wire 2 as the front-back direction, and the width direction of the insulated trolley wire 2 as the left-right direction.

  As shown in FIG. 9, the power supply system using the connector 1 of the present embodiment supplies electric power from the insulated trolley wire 2 installed in the building to the mobile device 4 formed of a hoist crane via the current collector 46. . Note that the mobile device 4 to be supplied with the insulated trolley wire 2 is not limited to a hoist crane, and the present invention may be applied to other fields such as an automatic warehouse and a multi-story parking lot.

  The insulating trolley wires 2 are sequentially connected in the longitudinal direction by the connector 1, and the insulating trolley wires 2 arranged at both ends are held by the insulators 43. The insulator 43 is connected to the construction material 44 in a state of being pulled toward the construction material 44 via the spring 45, whereby each insulating trolley wire 2 is installed in a tensioned state.

  As shown in FIG. 2 and FIG. 3, each insulating trolley wire 2 has a plurality of strip-like conductors 7 whose thickness direction is the vertical direction and a resin insulating material 8 that houses these conductors 7. A substantially U-shaped sheath portion 9 that opens downward is formed in the insulating material 8 so as to be arranged in a plurality of rows (three rows in the illustrated example) at a constant pitch on the left and right sides, and each sheath portion 9 extends in the longitudinal direction of the insulating material 8. Is formed.

  A conductor 7 is provided in the longitudinal direction in a groove formed in each sheath portion 9 and opening downward. These conductors 7 are exposed from the groove opening of the sheath portion 9 at the center in the width direction of the lower surface.

  The end of each conductor 7 of the insulated trolley wire 2 is electrically connected to the end of the corresponding conductor 7 of the adjacent insulated trolley wire 2 via the connector 1 as shown below. As a result, three power supply lines for the mobile device 4 including the front and rear conductors 7 are formed.

  As illustrated in FIG. 2, the connector 1 includes a main body 11 and a plurality of terminals 15 a to 15 c provided on the main body 11. The main body 11 is formed in a box shape having a substantially rectangular shape extending forward and backward and opening forward. The main body 11 includes a base 12 that forms the bottom surface of the main body 11 and a cover 13 that is detachable from the base 12 and that forms the top surface, both side surfaces, and the rear surface of the main body 11.

  As shown in FIG. 3, an insertion groove 16 that opens downward is formed in the front-rear direction at the center in the left-right direction on the lower surface of the base 12. Insulating trolley wires 2 on both the front and rear sides are inserted into the insertion groove 16, and support portions 17 that support both the inserted insulating trolley wires 2 are formed in the insertion groove 16.

  Through holes 19 penetrating vertically as shown in FIG. 5 are formed side by side as many as the power supply lines at the center in the front-rear direction of the base 12, and the partition wall 20 rising from between the adjacent through holes 19 is formed on the upper surface of the base 12. Is formed.

  As shown in FIG. 1, the same number of terminals 15 a to 15 c as the through holes 19 are arranged on the base 12. Each of the terminals 15a to 15c is made of metal and formed in an L shape in a side view, and includes a wire connecting portion 21 and a trolley wire connecting portion 22 protruding from the lower end portion of the wire connecting portion 21.

  A block-shaped conductor insertion portion 23 is formed at the distal end portion of the trolley wire connection portion 22, and an insertion hole 24 penetrating vertically is formed in the conductor insertion portion 23. The conductor insertion portion 23 is formed with a female screw hole 25 penetrating in the front-rear direction so as to allow the distal end surface of the conductor insertion portion 23 to communicate with the insertion hole 24. The female screw hole 25 has a wire connecting portion as shown in FIG. Bolts 26 are screwed in from the side opposite to 21.

  As shown in FIG. 1, the wire connection portion 21 is formed in a plate shape, and the lower end portion thereof is connected to the side end portion of the conductor insertion portion 23 via a connection piece portion 27 having the same thickness as the wire connection portion 21. That is, the trolley wire connecting portion 22 is composed of the connecting piece portion 27 and the conductor insertion portion 23.

  The terminals 15a to 15c are placed side by side on the base 12 so that the insertion holes 24 face the corresponding through holes 19 as shown in FIG. 1, and a partition wall 20 is disposed between the adjacent terminals 15a to 15c. To be insulated. These terminals 15a to 15c are placed so that the protruding directions of the trolley wire connecting portions 22 are alternately reversed. In the example of FIG. 1, the protruding direction of the trolley wire connecting portion 22 of the terminals 15a and 15c arranged on both outer sides is forward, and the protruding direction of the trolley wire connecting portion 22 of the terminal 15b arranged in the center is backward. .

  A wire connection hole 28 made of a female screw hole is formed in the wire connection portion 21 of each of the terminals 15a to 15c. Among these, in the terminals 15a and 15c, the portion of the electric wire connecting portion 21 that protrudes upward from the trolley wire connecting portion 22 is bent to the left and inclined, and the electric wire connecting hole 28 is formed in the inclined portion. Has been.

  In the terminal 15b, the entire wire connecting portion 21 is formed in a vertical vertical plate shape, and the wire connecting portion 21 is taller than the wire connecting portions 21 of the terminals 15a and 15c. The electric wire connection hole 28 of the terminal 15 b has an upper half portion disposed above the trolley wire connection portion 22 and a lower half portion disposed at the same level as the trolley wire connection portion 22. Therefore, in the state where the terminals 15a to 15c are arranged at the installation positions on the base 12 as shown in FIG. 1, the wire connecting hole 28 of the terminal 15b is replaced with the wire connecting holes of the terminals 15a and 15c as shown in FIG. 28 is arranged below 28.

  In order to connect the insulated trolley wires 2 with the connector 1, for example, the following is performed. First, the insulating material 8 at the end of the both insulated trolley wires 2 on the connector 1 side is peeled to expose the end of each conductor 7 on the connector 1 side.

  Next, as shown in FIG. 4, both insulated trolley wires 2 are inserted into the insertion groove 16 of the base 12 from below, and both insulated trolley wires 2 are supported by the support portion 17. Further, at this time, the end portions of the exposed conductors 7 of both insulated trolley wires 2 are folded upward as shown in FIG. It inserts into the through-hole 19 of terminal 15a-15c to perform from the downward direction. Thereafter, the terminals 15a to 15c are installed on the base 12 as described above.

  Then, the bolts 26 provided on the terminals 15 a to 15 c are tightened, and the two folded pieces 41 are sandwiched between the front end surface of the bolts 26 and the inner surface of the insertion hole 24. In this way, each conductor 7 of the insulated trolley wire 2 is electrically connected to the corresponding conductor 7 of the other insulated trolley wire 2. In addition, although each terminal 15a-15c in this connection state is only mounted on the base 12, it may be fixed so that it cannot move horizontally with respect to the base 12 by fitting or the like.

  As shown in FIG. 2, the electric wire 5 connected to the terminals 15 a to 15 c is a cable used as a feeder line, and a crimp terminal 5 a is provided at the end thereof. In FIG. 3, only the crimp terminal 5a crimped to the end of the electric wire 5 is shown, and the illustration of the cable is omitted.

  The electric wire 5 is connected to the electric wire connection part 21 of each terminal 15a-15c arrange | positioned on the said base 12 as follows, for example. First, the crimp terminal 5a of the electric wire 5 is placed along the side surface of the electric wire connection portion 21 of the corresponding terminals 15a to 15c as shown in FIG. Then, the bolt 42 is passed through the crimp terminal 5 a, and the bolt 42 is screwed into the wire connection hole 28 of the wire connection portion 21, thereby fastening the crimp terminal 5 a to the wire connection portion 21.

  The electric wire 5 connected to the electric wire connection portion 21 of each of the terminals 15a to 15c is guided forward from the electric wire connection portion 21 and drawn forward through the opening 40 for extraction.

  As described above, the ends of the electric wires 5 connected to the terminals 15 a to 15 c of the base 12 are covered with the cover 13 attached to the base 12.

  As shown in FIG. 5, horizontal piece-like slide holding portions 31 protruding outward are formed at the left and right ends of the base 12 in the front-rear direction. On the other hand, on the inner surfaces of the lower end portions of the left and right side portions of the cover 13, a plurality of held portions 34 that are slidable in the front-rear direction and are not movable up and down by the corresponding slide holding portions 31 are formed in the front and rear. Each held portion 34 is composed of ribs 32 and 33 projecting inward from two places spaced apart from each other on the side surface of the cover 13, and the slide holding portion 31 is a groove formed between the ribs 32 and 33. 46 is slidably inserted in the front-rear direction.

  As shown in FIGS. 6 and 7, a slide restricting portion 35 is formed at the center of the rear end portion of the base 12 so that the cover 13 disposed at a predetermined position shown in FIG.

  The slide restricting portion 35 includes a locking portion 36 that protrudes rearward from the base 12 and a rib 38 that protrudes upward from the rear end portion of the base 12. A claw portion 37 that protrudes upward and is disposed in front of the rib 38 is formed in the locking portion 36, and a groove 48 that opens upward is formed between the rib 38 and the claw portion 37. The lower end portion of the rear surface portion of the cover 13 constitutes a fitting portion 47 that is fitted into the groove 48 and cannot be moved back and forth when the cover 13 is disposed at the position shown in FIG.

  On both sides of the front end portion of the base 12, a wire receiving portion 39 formed in a wall shape protruding upward by a plurality of ribs is formed. Both wire receiving portions 39 are fitted inside the front end portion of the cover 13 arranged at a predetermined position shown in FIG. 2, and extend along the inner surface of the corresponding side surface portion of the cover 13. Further, a wire outlet 40 for drawing the wire 5 from the inside of the main body 11 is provided between the two wire receiving portions 39.

  In order to attach the cover 13 to the base 12, as shown in FIG. 5, the cover 13 disposed behind the base 12 is moved forward, and the left and right slide holding portions 31 of the base 12 are each provided with corresponding grooves in the held portions 34. 46. The movement of the cover 13 is performed until the fitting portion 47 is fitted into the groove 48 of the slide restricting portion 35 of the base 12. Specifically, when the fitting portion 47 of the cover 13 has moved to a position corresponding to the claw portion 37, the fitting portion 47 presses the locking portion 36 downward to cause elastic deformation. When the cover 13 further moves forward, the fitting portion 47 gets over the claw portion 37, the locking portion 36 elastically returns upward, and the fitting portion 47 fits into the groove 46. As described above, the cover 13 is held by the slide holding portion 31 so as not to move up and down, and held by the slide restricting portion 35 so as not to move back and forth, and is attached to a predetermined position of the base 12 shown in FIG. Thereby, the edge part of each electric wire 5 and terminal 15a-15c are stored in the space enclosed by the base 12 and the cover 13. FIG.

  As described above, the connector 1 of the present embodiment is provided with the L-shaped terminals 15a to 15c arranged side by side in the side view. And in adjacent terminal 15a-15c (namely, terminal 15a and 15b or terminal 15b and terminal 15c), the protrusion direction of the trolley wire connection part 22 is made reverse, and both electric wire connection parts 21 are the front-back direction. Are separated. For this reason, each electric wire connection part 21 of terminal 15a-15c can be spaced apart in the front-back direction, and the insulation distance of the electric wires 5 can fully be ensured. Moreover, it becomes difficult for the electric wires 5 to interfere with each other, and the workability is improved. Moreover, the space | interval in the left-right direction of the adjacent terminals 15a-15c can be made small, and the enlargement of the connector 1 can be suppressed. Moreover, since the terminals 15a-15c have the electric wire connection part 21 which protrudes upwards rather than the trolley wire connection part 22, the edge part of the electric wire 5 is kept away from the insulated trolley wire 2, and the edge part of the electric wire 5 and insulation trolley A sufficient insulation distance from the wire 2 can be secured. Moreover, it can prevent that the electric wire 5 interferes with the base 12 arrange | positioned at the insulated trolley wire 2 side, and also in this point, workability | operativity improves.

  In the adjacent terminals 15a to 15c, the wire connection holes 28 provided in the respective wire connection portions 21 are arranged so as to be shifted in the vertical direction. By doing in this way, the electric wire 5 connected to the terminals 15a-15c can be further spaced apart, suppressing the enlargement of the connector 1. FIG.

  Moreover, in the terminals 15a and 15c, the electric wire connection part 21 is inclined toward the side above the trolley wire connection part 22. Thereby, the protrusion amount to the upper direction of the electric wire connection part 21 can be suppressed, and it can prevent that the connector 1 becomes large upwards.

  The connector 1 includes a base 12 on which the terminals 15a to 15c are provided and a cover 13 that covers the terminals 15a to 15c. The slide holding unit that holds the cover 13 on the base 12 so as to be slidable in the horizontal direction and not vertically movable. 31 is formed. Accordingly, when a large space above the base 12 cannot be secured, such as when there is an obstacle above the base 12 at a high place, the cover 13 can be easily slid and attached to the base 12 in the horizontal direction.

  The base 12 is formed with a slide restricting portion 35 that restricts the movement of the cover 13 in the sliding direction when the cover 13 is disposed at a position covering the terminals 15a to 15c. Thereby, the cover 13 can be attached to the base 12 in a state where the movement in the horizontal direction is restricted by simply sliding the cover 13 with respect to the base 12. Therefore, it is not necessary to perform an operation such as screwing to fix the cover 13 to the base 12, and the cover 13 can be easily attached to the base 12 in a scene where it is difficult to perform an operation such as a high place.

  Further, the base 12 is formed with a wire receiving portion 39 disposed between the wire 5 connected to the terminals 15 a to 15 c and the cover 13 attached to the base 12. Thereby, when the electric wire 5 connected to the terminals 15 a to 15 c moves, the electric wire 5 can be received by the electric wire receiving portion 39. Therefore, it is possible to prevent the cover 13 from coming off the base 12 due to the electric wire 5 hitting the cover 13.

  In the above embodiment, the example in which the connector 1 is constructed with the base 12 down and the cover 13 up has been described, but the orientation of the connector 1 at the time of construction is not limited to this. For example, when the insulating trolley wire 2 is provided along the wall of a building, the cover 13 is disposed on the wall side of the base 12.

  Moreover, although the connector 1 of the said embodiment is a three-pole connector provided with the three terminals 15a-15c, the number of the said terminals is not limited, For example, as shown in FIG. It is good also as the connector 1 for four poles provided with these terminals 15a-15d.

  In the example of FIG. 8, the insulated trolley wire 2 to be connected has four conductors 7. The left and right outer terminals 15a and 15d are arranged on the base with the trolley wire connecting portion 22 facing forward, and the two central terminals 15b and 15c face the trolley wire connecting portion 22 rearward. It is arranged on the base 12 in a state. The electric wire 5 which consists of a feeder is connected to the electric wire connection part 21 of three terminals among these terminals 15a-15d similarly to the said embodiment. Moreover, the electric wire 5 which consists of a ground wire is connected to the electric wire connection part 21 of another one terminal, ie, one conductor 7 of the conductors 7 of the insulated trolley wire 2 is utilized as a grounding electrode. In the example of FIG. 8, the same effect as that of the above embodiment can be obtained.

DESCRIPTION OF SYMBOLS 1 Connector 5 Electric wire 12 Base 13 Cover 15a terminal 15b terminal 15c terminal 21 Electric wire connection part 22 Trolley wire connection part 28 Electric wire connection hole 31 Slide holding part 35 Slide regulation part 39 Electric wire receiving part

Claims (6)

  Side-view L-shaped terminals protruding from the lower end of the wire connecting portion are provided side by side, and the protruding direction of the trolley wire connecting portion of the adjacent terminal is reversed so that both wires are connected. The connector is characterized in that the parts are separated in the front-rear direction.   The connector according to claim 1, wherein a wire connection hole is provided in each of the adjacent terminal portions of the adjacent terminals, and the wire connection holes are shifted in the vertical direction.   The connector according to claim 1 or 2, wherein the electric wire connecting portion is inclined toward the side above the trolley wire connecting portion.   2. A base comprising a base on which the terminal is provided and a cover covering the terminal, wherein the base is formed with a slide holding portion for holding the cover in a slidable manner in the horizontal direction and in a non-movable manner. 4. The connector according to any one of 3 above.   The connector according to claim 4, wherein a slide restricting portion that restricts movement of the cover in a sliding direction when the cover is disposed at a position covering the terminal is formed on the base.   The connector according to claim 4 or 5, wherein an electric wire receiving portion disposed between an electric wire connected to the terminal and a cover attached to the base is formed on the base.

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