Wire fuse with connector

Abstract

To simplify the installation work on a wire and reduce the time required for the installation work while eliminating the need for a special tool.SOLUTION: A wire fuse with a connector includes a fuse body 11 and a connector 21 connected to the fuse body 11. The connector 21 includes a connecting state switching unit that switches to a state where a wire 2 is connected to the connector 21 as artificial manual operations are performed.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a connector-equipped electric wire fuse that is freely connectable to an electric wire. [Background technology]

[0002] Electric wire fuses such as those described above are installed, for example, at intermediate locations on service lines leading to consumers such as homes, and are used to protect the service lines to the consumers, electrical equipment, etc. (see, for example, Patent Document 1).

[0003] The wire fuse described in Patent Document 1 is provided with a connection terminal having a cylindrical wire connection hole as a connector, and the connection terminal is connected to a fuse main body such as a fuse element.

[0004] When installing an electric wire in a wire-with-connector fuse, the electric wire is inserted into the electric wire connection hole of the connection terminal and a compressive force is applied from the outer side of the connection terminal with a tool, thereby deforming the connection terminal and the electric wire and crimping the connection. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2009-87892 A Summary of the Invention [Problem to be solved by the invention]

[0006] Since the installation of a connector-equipped electric wire fuse on an electric wire is a high-altitude task performed at a high place, it is desired to simplify the installation work. Also, for example, at a branch point where a main line is branched into a plurality of drop lines, it is necessary to install a connector-equipped electric wire fuse on each of the plurality of drop lines, and since the number of connector-equipped electric wire fuses to be installed increases, in addition to simplifying the installation work, it is also desired to shorten the time required for the installation work.

[0007] In the wire fuse described in Patent Document 1, a compression work is performed in which a compressive force is applied from the outer side of the connection terminal with a tool while the electric wire is inserted into the electric wire connection hole of the connection terminal. In this compression work, an appropriate amount of compressive force must be applied, and the compressed state must be maintained for a desired period of time, making it difficult to simplify the installation work and reduce the time required for the installation work. Moreover, the tool used for the compression work is a special dedicated tool, and since the amount of compressive force required for connection varies depending on, for example, the type of drop line, preparing the dedicated tool is time-consuming and leads to increased costs.

[0008] In view of this situation, a primary object of the present invention is to provide a connector-attached electric wire fuse that does not require special tools, yet can simplify the installation work on the electric wire and shorten the time required for the installation work. [Means for solving the problem]

[0009] A first characteristic configuration of the present invention is a fuse body and a connector connected to the fuse body, The connector is provided with a connection state switching unit that switches the connection state for connecting the electric wire to the connector in response to an artificial manual operation.

[0010] According to this configuration, when an operator or the like performs a manual operation, the connection state switching unit can switch to the connected state in response to the manual operation. Therefore, when installing the connector-attached electric wire fuse on an electric wire, a dedicated tool is not required, and instead of performing an operation using a dedicated tool, a simple task of performing a manual operation is all that is required, thereby simplifying the installation work on the electric wire and shortening the time required for the installation work.

[0011] A second characteristic configuration of the present invention is a connector including an electric wire insertion portion into which an electric wire is inserted, and an operation portion that can be manually operated from a non-connection position to a connection position, The connection state switching unit switches from a non-connected state to the connected state in coordination with movement of the operation unit from a non-connected position to a connected position.

[0012] According to this configuration, when an operator moves the operating unit from the non-connection position to the connection position with an electric wire inserted into the electric wire insertion portion of the connector, the connection state switching unit switches from the non-connection state to the connection state in coordination with the movement of the operating unit. Therefore, as an artificial manual operation, it is sufficient to simply move the operating unit from the non-connection position to the connection position with an electric wire inserted into the electric wire insertion portion, so that it is possible to simplify the installation work for the electric wire and shorten the time required for the installation work.

[0013] A third characteristic configuration of the present invention is that the connection state switching portion switches to the connected state by applying a compressive force to the electric wire inserted into the electric wire insertion portion.

[0014] According to this configuration, the connection state switching unit applies a compressive force to the electric wire inserted into the electric wire insertion unit, and the compressive force causes the electric wire to be deformed and the electric wire to be crimped and connected to the connector. Therefore, the connection state in which the connector and the electric wire are connected can be properly maintained, and the connection between the connector and the electric wire can be properly and reliably performed.

[0015] A fourth characteristic configuration of the present invention is a connector including a swinging body that is swingable from the non-connected position to the connected position around a swing axis that is adjacent to the wire insertion portion, The rocking body is provided with the operation unit and the connection state switching unit, The operating portion is provided as a lever-type operating portion extending on the outer diameter side of the oscillation axis of the oscillating body, the connection state switching portion is disposed at a position different from the lever-type operation portion in a circumferential direction of the swing body and is provided as a protruding portion protruding toward an outer diameter side of the swing axis, The protrusion is located in a retracted position retracted from the wire insertion portion when the rocking body is located in the non-connection position, and is located in a protruding position protruding into the wire insertion portion when the rocking body is located in the connection position.

[0016] According to this configuration, when an operator operates the operating part, the operator only needs to press the lever-type operating part that extends on the outer diameter side of the oscillation axis of the rocking body, so the operating force is small and the operating part can be easily operated. Moreover, since the connection state switching part is provided as a protrusion that protrudes on the outer diameter side of the oscillation axis, the connection state switching part can be simply configured by forming a protrusion on the rocking body.

[0017] Since the protrusion is located in the retracted position when the rocking body is located in the non-connection position, the protrusion is not present in the electric wire insertion portion and does not get in the way, making it possible to easily and smoothly insert the electric wire into the electric wire insertion portion. Since the protrusion is located in the protruding position when the rocking body is located in the connection position, the protrusion protrudes inwardly of the electric wire insertion portion to apply a compressive force to the electric wire inserted into the electric wire insertion portion, thereby enabling the electric wire to be properly crimped and connected to the connector.

[0018] A fifth characteristic configuration of the present invention is a rotating body provided in the connector, the rotating body being disposed adjacent to the electric wire insertion portion in a wire insertion / removal direction and being rotatable from the non-connection position to the connection position around a rotation axis offset from a central axis of the electric wire insertion portion, The rotating body is provided with the operation unit and the connection state switching unit, The operation unit is provided as a pressing type operation unit that can freely press the rotating body, the connection state switching portion is provided as a connection space forming portion that forms a connection space connected to the electric wire insertion portion in an insertion / removal direction of the electric wire, The connecting space forming portion forms an entire connecting space in the connecting space that is connected to the entire wire insertion portion when the rotating body is located at the non-connecting position, and forms a reduced connecting space in the connecting space that is connected to a reduced portion formed by reducing the wire insertion portion when the rotating body is located at the connecting position.

[0019] According to this configuration, when an operator or the like operates the operation unit, the operator only needs to press the pressing operation unit, and the operation unit can be easily performed. Since the connection state switching unit is provided as a connection space forming unit that forms a connection space, the connection state switching unit only needs to form a connection space forming unit in the rotating body, and a simple configuration can be achieved.

[0020] Since the connecting space forming portion forms the entire connecting space in the connecting space when the rotating body is located in the non-connecting position, the electric wire can be inserted between the electric wire insertion portion and the entire connecting space, and the work of inserting the electric wire can be easily and smoothly performed. Since the connecting space forming portion forms the reduced connecting space in the connecting space when the rotating body is located in the connecting position, when the rotating body is rotated from the non-connecting position to the connecting position, the connecting space connected to the electric wire insertion portion is switched to the reduced connecting space that is reduced from the entire connecting space. This allows a compressive force to be applied to the electric wire inserted into the entire connecting space by the connecting space that forms the reduced connecting space and the inner peripheral portion of the electric wire insertion portion, and the electric wire can be appropriately crimped and connected to the connector. [Brief description of the drawings]

[0021] [Figure 1] A schematic diagram showing a state in which a connector-equipped wire fuse is installed on each of a plurality of drop lines at a branch section. [Diagram 2] FIG. 1 is a perspective view showing a state in which a connector-equipped electric wire fuse is installed on a drop line in a first embodiment; [Diagram 3] (A) is a cross-sectional view showing the state before the drop line and the connector are connected, and (B) is a cross-sectional view showing the state after the drop line and the connector are connected. [Figure 4]FIG. 11 is a perspective view showing a state in which a connector-equipped electric wire fuse is installed on a drop line in a second embodiment; [Diagram 5] FIG. 1 is an exploded perspective view of a connector body and a rotating body; [Figure 6] FIG. 1A is a perspective view showing the connector body and the rotating body before the drop line and the connector are connected, and FIG. 1B is a perspective view showing the connector body and the rotating body after the drop line and the connector are connected. [Figure 7] FIG. 1A is a side view showing the connector body and the rotating body before the drop line and the connector are connected, and FIG. 1B is a side view showing the connector body and the rotating body after the drop line and the connector are connected. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0022] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a connector-attached electric wire fuse according to the present invention will be described with reference to the drawings. [First embodiment] As shown in FIG. 1, this connector-equipped electric wire fuse 1 is installed in a service line 2 (electric wire) in an electric power distribution line, and is used to protect the service line 2 and electrical equipment and the like connected to the service line 2.

[0023] FIG. 1 shows, for example, a state in which a connector-equipped electric wire fuse 1 is installed for each of a plurality of drop wires 2 at a branching section 4 where a main line 3 is branched into the plurality of drop wires 2.

[0024] When installing the connector-equipped electric wire fuse 1 on the drop wire 2, although illustration is omitted, a worker climbs up in a bucket of an aerial work vehicle or the like to the location where the drop wire 2 is to be installed, and installs the connector-equipped electric wire fuse 1 at a height by the worker. At this time, the connector-equipped electric wire fuse 1 can be installed, for example, by a direct installation method in which the worker directly touches the connector-equipped electric wire fuse 1, etc.

[0025] 2, the electric wire fuse with connector 1 includes a fuse body 11 and a connector 21 connected to the fuse body 11. The connectors 21 are connected to both ends of the fuse body 11. The electric wire fuse with connector 1 is installed midway along the drop wire 2 with the connectors 21 on both sides connected along the axial direction of the drop wire 2.

[0026] Fig. 3 basically shows the connection state between the drop wire 2 and the connector 21, but the left side of Fig. 3 shows the connection state between the fuse body 11 and the connector 21. As shown on the left side of Fig. 3(A), the end of the fuse body 11 facing the connector 21 is provided with a cylindrical fuse-side connection portion 12, and the end of the connector 21 facing the fuse body 11 is provided with a protruding connector-side connection portion 22. Both the fuse-side connection portion 12 and the connector-side connection portion 22 are made of a conductive material, and by connecting the fuse-side connection portion 12 and the connector-side connection portion 22, the fuse body 11 and the connector 21 are electrically connected in a state along the axial direction of the drop wire 2.

[0027] The connection between the fuse-side connection portion 12 and the connector-side connection portion 22 is performed, for example, as one of the manufacturing processes in a manufacturing factory or the like, and a connector-attached electric wire fuse 1 is manufactured in which the fuse body 11 and the connector 21 are connected. As shown by the arrow in Fig. 3(A), with the connector-side connection portion 22 inserted into the fuse-side connection portion 12, a compressive force is applied from the outer side of the fuse-side connection portion 12 using a tool or the like, whereby the fuse-side connection portion 12 and the connector-side connection portion 22 are deformed and crimped (crimped) connected.

[0028] In this way, since fuse side connection portion 12 and connector side connection portion 22 are connected in advance at a manufacturing factory or the like, when installing connector-equipped electric wire fuse 1 on drop wire 2, the installation work involves connecting drop wire 2 and connector 21 as shown in Figures 2 and 3. In Figure 2, connector 21 on the left side illustrates the state before drop wire 2 and connector 21 are connected, and connector 21 on the right side illustrates the state after drop wire 2 and connector 21 are connected.

[0029] Connector 21 is made of a conductive member, and includes connector body 23 and swinging body 24 that is swingable around swing axis P relative to connector body 23, as shown in Figures 2 and 3. Connector body 23 includes cylindrical electric wire insertion portion 25 into which drop wire 2 (electric wire) can be inserted, as shown in Figure 3. An end portion of drop wire 2 is exposed electric wire portion 2a from which the covering has been removed, and exposed electric wire portion 2a is inserted into electric wire insertion portion 25 to connect to connector 21. Figure 3 shows a state in which exposed electric wire portion 2a of drop wire 2 is inserted into electric wire insertion portion 25.

[0030] 3, the oscillation axis P is disposed at a position adjacent to the electric wire insertion portion 25. The upper portion of the connector body 23 is provided with a communication portion 27 that communicates with an insertion space 26 into which the exposed electric wire portion 2a of the drop wire 2 is inserted in the electric wire insertion portion 25, and the communication portion 27 is formed in a bulging shape that bulges upward. The oscillation axis P is disposed within the communication portion 27 at a position adjacent to the upper side of the insertion space 26.

[0031] The oscillating body 24 is provided so as to be able to swing from a non-connected position shown in Fig. 3(A) to a connected position shown in Fig. 3(B). The oscillating body 24 is provided with a circular base end portion 24a that swings around the oscillation axis P, and an extension portion 24b that extends from the base end portion 24a to the outer diameter side of the oscillation axis P. The oscillating body 24 is disposed in a state in which the base end portion 24a is located within the communicating portion 27, and the extension portion 24b extends outward from the communicating portion 27.

[0032] In order to connect the drop wire 2 to the connector 21, as shown in FIG. 3, the movable body 24 is provided with an operating unit 28 that can be manually operated by an operator, etc., and a connection state switching unit 29 that switches, in cooperation with manual operation of the operating unit 28, from a non-connected state before the drop wire 2 is connected to the connector 21 to a connected state in which the drop wire 2 is connected to the connector 21.

[0033] The operation unit 28 is configured by the extension portion 24b of the swinging body 24, and is provided as a lever-type operation unit 28 that can be swung from the non-connection position shown in Fig. 3(A) to the connection position shown in Fig. 3(B). When the lever-type operation unit 28 is located at the non-connection position shown in Fig. 3(A), it is in a position extending upward, and when it is located at the connection position shown in Fig. 3(B), it is in a position along the axial direction of the drop wire 2 (a position along the horizontal direction). When the lever-type operation unit 28 is swung to the connection position shown in Fig. 3(B), the upper outer side portion of the connector body 23 abuts against the lever-type operation unit 28, so that the upper outer side portion of the connector body 23 functions as a stopper portion that prevents the lever-type operation unit 28 from swinging further.

[0034] The connection state switching portion 29 is provided as a protrusion 30 that protrudes outward from the oscillation axis P formed at the base end portion 24a of the oscillator 24. The protrusion 30 is disposed at a position spaced a predetermined angle (e.g., 90 degrees) from the lever-type operating portion 28 in the circumferential direction of the oscillator 24.

[0035] 3(A), protrusion 30 is located at a retracted position retracted from insertion space 26 of electric wire insertion portion 25. On the other hand, when rocking body 24 and lever-type operation unit 28 are located at a connected position shown in Fig. 3(B), protrusion 30 is located at a protruding position protruding into insertion space 26 of electric wire insertion portion 25. In this way, when lever-type operation unit 28 is swung from the non-connected position (see Fig. 3(A)) to the connected position (see Fig. 3(B)), protrusion 30 as connection state switching unit 29 is changed in position from the retracted position (see Fig. 3(A)) to the protruding position (see Fig. 3(B)).

[0036] When the protrusion 30 is located in the protruding position, as shown in Figure 3 (B), the protrusion 30 protrudes into the insertion space 26 of the electric wire insertion portion 25, so that a compressive force is applied to the exposed electric wire portion 2a of the drop wire 2 inserted into the insertion space 26, thereby crimping and connecting the exposed electric wire portion 2a to the connector body 23.

[0037] The operation of connecting the drop wire 2 and the connector 21 will now be described. As shown by the outline arrow in (1) of Fig. 3(A) , in a state in which exposed electric wire portion 2a of drop wire 2 is inserted into insertion space 26 of electric wire insertion portion 25, an operator swings lever-type operation portion 28 from the non-connection position to the connection position as shown by the outline arrow in (2) . As lever-type operation portion 28 swings, protrusion 30 is repositioned from the retracted position to the protruding position as shown by the outline arrow in Fig. 3(B) , so that protrusion 30 protrudes into insertion space 26 of electric wire insertion portion 25 and applies a compressive force to exposed electric wire portion 2a of drop wire 2, thereby crimping and connecting exposed electric wire portion 2a to connector body 23.

[0038] The manual operation performed by the worker is simply to insert the exposed wire portion 2a into the insertion space 26 and then swing the lever-type operating unit 28 from the non-connected position to the connected position, thereby simplifying the installation work of the connector-equipped wire fuse 1 on the incoming wire 2 and shortening the time required for the installation work.

[0039] 3(A), when lever-type operation unit 28 is in the non-connected position, protrusion 30 is in the retracted position and is therefore not present in insertion space 26. Therefore, as shown by the outline arrow in (1), when inserting exposed electric wire portion 2a of drop wire 2 into insertion space 26 of electric wire insertion unit 25, protrusion 30 does not get in the way, and the insertion operation can be performed easily and smoothly.

[0040] Second Embodiment The second embodiment is an alternative embodiment of the operation unit 28 and the connection state switching unit 29 in the first embodiment. Below, configurations different from the first embodiment will be described with reference to Figs. 4 to 7, focusing on the configurations of the operation unit 42 and the connection state switching unit 43. Configurations similar to those in the first embodiment will be denoted by the same reference numerals and will not be described.

[0041] As compared with the first embodiment, as shown in Fig. 4, the configuration and shape of connector body 41 in connector 21 are different, so first, connector body 41 will be described. Incidentally, in Fig. 4, like Fig. 2, the left connector 21 is illustrated in a state before the drop wire 2 and connector 21 are connected, and the right connector 21 is illustrated in a state after the drop wire 2 and connector 21 are connected.

[0042] As shown in FIG. 5, the connector body 41 is U-shaped when viewed from the side (when viewed in the direction along the insertion / removal direction X of the drop wire 2) and has an upright wall portion 41a extending in the vertical direction, an upper side wall portion 41b extending horizontally from the upper end of the upright wall portion 41a, and a lower side wall portion 41c extending horizontally from the lower end of the upright wall portion 41a.

[0043] 4 and 5, a side wall 41d that closes the gap between the upper side wall 41b and the lower side wall 41c is provided on the fuse body 11 side of the connector body 41 in the insertion / removal direction X (axial direction of the drop wire 2) of the drop wire 2. In this second embodiment, although not shown, referring to Fig. 3 of the first embodiment, a protruding connector side connection portion 22 that is connected to the fuse side connection portion 12 of the fuse body 11 is provided on the side wall 41d.

[0044] As shown in Fig. 5, connector body 41 is formed with electric wire insertion portion 46 into which drop wire 2 can be freely inserted, similar to electric wire insertion portion 25 (see Fig. 3) of the first embodiment. Since the configuration and shape of electric wire insertion portion 46 are different, electric wire insertion portion 46 will be described. Incidentally, as in the first embodiment, exposed electric wire portion 2a (see Fig. 3) of drop wire 2 is inserted into wire insertion portion 46, but in the second embodiment, exposed electric wire portion 2a is omitted in Figs. 6 and 7, and drop wire 2 having a coating is illustrated.

[0045] As shown in Fig. 5, the connector body 41 has a plurality of electric wire insertion portion forming portions 45 arranged at regular intervals along the insertion / removal direction X of the drop wire 2. Each of the electric wire insertion portion forming portions 45 is formed of a rectangular wall-like body protruding horizontally from the upright wall portion 41a, similar to the upper side wall portion 41b and the lower side wall portion 41c. Each of the electric wire insertion portion forming portions 45 has a circular electric wire insertion portion 46 formed in its central portion and penetrating the wall-like body. Each of the circular electric wire insertion portions 46 is arranged in a line in a state where the entirety of the circular electric wire insertion portions 46 overlaps along the insertion / removal direction X of the drop wire 2, and the central axes of the respective electric wire insertion portions 46 are the same central axis C1 (see Fig. 7(A)) along the insertion / removal direction X of the drop wire 2.

[0046] As shown in Fig. 6, a rotating body 44 is attached to the connector main body 41 so as to be rotatable around a rotation axis C2 (see Fig. 7). The rotating body 44 is provided so as to be rotatable from a non-connected position shown in Fig. 6(A) and Fig. 7(A) to a connected position shown in Fig. 6(B) and Fig. 7(B). In the non-connected position shown in Fig. 6(A) and Fig. 7(A), the rotating body 44 is formed in a horizontally elongated rectangular parallelepiped shape extending in a direction perpendicular to the upright wall portion 41a of the connector main body 41, and one end of the horizontally elongated shape is attached to the connector main body 41.

[0047] 5 and 6, the rotating body 44 is provided with a connection space forming portion 48 which forms a connection space 47 connected to the electric wire insertion portion 46 in the insertion / removal direction X of the drop wire 2 when attached to the connector main body 41. This connection space forming portion 48 is provided as the connection state switching portion 43. The connection space forming portions 48 are provided at a portion of the rotating body 44 which is attached to the connector main body 41, and a plurality of connection space forming portions 48 are arranged at regular intervals along the insertion / removal direction X of the drop wire 2. The connection space 47 is formed in a circular shape having the same shape and size as the electric wire insertion portion 46.

[0048] 5 and 6, the interval between the electric wire insertion portion forming portions 45 in the connector body 41 is set to a length corresponding to the connecting space forming portions 48 in the rotating body 44. As a result, the interval between the electric wire insertion portion forming portions 45 in the connector body 41 forms a mounting space 49 into which the connecting space forming portions 48 in the rotating body 44 are inserted for mounting, as shown in Fig. 5. With the connecting space forming portions 48 inserted into the mounting space 49, the rotating body 44 is moved toward the connector body 41, whereby the rotating body 44 is mounted to the connector body 41.

[0049] In an attached state in which the rotating body 44 is attached to the connector main body 41, the lower side wall 41c abuts against and receives and supports the connection space forming portion 48, as shown in Fig. 6. The lower side wall 41c is disposed only on the outer side of the electric wire insertion portion forming portions 45 located at both ends in the insertion / removal direction X of the drop wire 2, as shown in Fig. 5, and the lower side wall 41c is not disposed between the electric wire insertion portion forming portions 45. As a result, the rotating body 44 is attached to the connector main body 41 with the connection space forming portions 48 located at both ends in the insertion / removal direction X of the drop wire 2 being placed and supported on the lower side wall 41c of the connector main body 41.

[0050] As shown in Fig. 7, the rotating body 44 is rotatable about a rotation axis C2 offset from the central axis C1 of the electric wire insertion portion 46 of the connector body 41. The rotating body 44 is rotated from the non-connected position shown in Fig. 6(A) and Fig. 7(A) to the connected position shown in Fig. 6(B) and Fig. 7(B) by manual operation by an operator or the like. For this purpose, the rotating body 44 is provided with a pressing type operating portion 42 as an operating portion that can be pressed to operate the rotating body 44.

[0051] The pressing type operation unit 42 is configured by the outer periphery of a horizontally elongated rotating body 44 that protrudes from the connector main body 41 in the disconnected position shown in Fig. 6(A) and Fig. 7(A). The outer periphery of the rotating body 44 has, in counterclockwise order from a position adjacent to the upright wall portion 41a of the connector main body 41 in the disconnected position shown in Fig. 7(A), a first curved portion 44a, a first straight portion 44b, a second straight portion 44c, a step portion 44d, a second curved portion 44e, and a third straight portion 44f.

[0052] The first curved portion 44a is formed in a semicircular shape that can freely come into contact with the standing wall portion 41a of the connector main body 41 in the non-connection position shown in FIG. 7(A). The first straight portion 44b is formed in a straight line extending from the end of the first curved portion 44a in a direction perpendicular to the standing wall portion 41a of the connector main body 41 (left-right direction in FIG. 7(A)). The second straight portion 44c is formed in a straight line bending at a right angle from the end of the first straight portion 44b and extending in a direction along the standing wall portion 41a (up-down direction in FIG. 7(A)). The step portion 44d is formed in a step shape by projecting the second straight portion 44c one step outward (to the side away from the standing wall portion 41a of the connector main body 41). The second curved portion 44e is formed in a curved shape that is curved at a right angle while connecting the step portion 44d and the third straight portion 44f. The third linear portion 44f is formed in a linear shape extending in a direction perpendicular to the standing wall portion 41a (the left-right direction in FIG. 7(A)).

[0053] 6(A) and 7(A), the pressing type operation unit 42 is composed of a plurality of parts, such as a first straight portion 44b, a second straight portion 44c, a step portion 44d, and a second curved portion 44e, on the outer periphery of the rotating body 44. When rotating the rotating body 44, the operator can select an easy-to-operate part from the plurality of parts and press it, so that the rotating operation of the rotating body 44 can be easily and appropriately performed.

[0054] The rotating body 44 is rotated about the rotation axis C2 from the non-connection position shown in Fig. 6(A) and Fig. 7(A) to the connection position shown in Fig. 6(B) and Fig. 7(B), and the rotation axis C2 at this time is disposed at a position offset from the central axis C1 of the electric wire insertion portion 46 of the connector main body 41 as shown in Fig. 7. As a result, with respect to the connection space 47 of the connection space forming portion 48 in the rotating body 44, when the rotating body 44 is located at the non-connection position shown in Fig. 7(A), an entire connection space 50 connected to the entire electric wire insertion portion 46 is formed in the connection space 47. On the other hand, when the rotating body 44 is located at the connection position shown in Fig. 7(B), a reduced connection space 51 (a region shown in gray in Fig. 7(B)) connected to a reduced portion obtained by reducing the electric wire insertion portion 46 is formed in the connection space 47.

[0055] The rotation axis C2 of the rotor 44 may be offset from the central axis C1 of the electric wire insertion portion 46, and the manner in which it is offset may be changed as appropriate. In Fig. 7, for example, the rotation axis C2 of the rotor 44 is offset from the central axis C1 of the electric wire insertion portion 46 to the side away from the two perpendicular wall portions, the upright wall portion 41a and the lower side wall portion 41c of the connector main body 41.

[0056] 7(A), the entire circular connecting space 47 in the connecting space forming portion 48 is disposed in a state where it overlaps with the entire circular electric wire insertion portion 46, so that the connecting space 47 forms an entire connecting space 50. At this time, the central axis C1 of the electric wire insertion portion 46 and the central axis C3 of the connecting space 47 are the same central axis.

[0057] When the rotating body 44 is located at the connection position shown in Fig. 7(B), the rotating body 44 rotates around the shifted rotation axis C2, so that the connecting space 47 rotates eccentrically with respect to the electric wire insertion portion 46, and the central axis C1 of the electric wire insertion portion 46 and the central axis C3 of the connecting space 47 are in different positions. As a result, the overlapping portion of the electric wire insertion portion 46 and the connecting space 47 is reduced (reduced in diameter), and a reduced connecting space 51 (a region shown in gray in Fig. 7(B)) is formed in the connecting space 47.

[0058] In Fig. 7, for example, since connection space 47 is offset diagonally downward to the right with respect to wire insertion portion 46, a reduced connection space 51 (area shown in gray in Fig. 7(B)) is formed by reducing the diagonally upper left portion from overall connection space 50 in Fig. 7(A) as shown in Fig. 7(B). Since the inner peripheral portions of wire insertion portion 46 and connection space 47 abut against the outer peripheral portion of drop wire 2 inserted into wire insertion portion 46 and apply a compressive force pressing inward, drop wire 2 can be crimped and connected to connector body 41 with drop wire 2 sandwiched between inner peripheral portions of wire insertion portion 46 and connection space 47.

[0059] In the disconnected position shown in Fig. 7(A), the first curved portion 44a, which is the outer periphery of the rotating body 44, abuts against the standing wall portion 41a of the connector main body 41. When the rotating body 44 is rotated, the first curved portion 44a is rotated while successively abutting against the standing wall portion 41a, so that the rotating body 44 can be rotated smoothly and appropriately while maintaining a stable posture of the rotating body 44 during the rotation. In the connected position shown in Fig. 7(B), the first curved portion 44a abuts against the lower side wall portion 41c of the connector main body 41, and the third straight portion 44f abuts against the standing wall portion 41a of the connector main body 41.

[0060] An engagement portion 52 is provided on the upper side wall portion 41b of the connector main body 41, which engages with a step portion 44d that is the outer periphery of the rotor 44 when the rotor 44 is located in the connection position shown in Fig. 7(B). The engagement portion 52 is provided with a curved portion 52a that curves and protrudes downward as it approaches the upright wall portion 41a, and a linear abutment portion 52b that extends upward from the lower end of the curved portion 52a.

[0061] The curved portion 52a of the engagement portion 52 is provided so as to be elastically deformable by abutting against the second curved portion 44e of the rotor 44 during rotation of the rotor 44. Due to the elastic deformation of the curved portion 52a, the step portion 44d of the rotor 44 passes through the curved portion 52a, and is engaged in a state in which the step portion 44d and the abutment portion 52b abut against each other, as shown in Fig. 7(B). Due to the engagement between the step portion 44d and the abutment portion 52b, the rotor 44 is held in the connected position.

[0062] The operation of connecting the drop wire 2 and the connector 21 will now be described. 6(A), with the drop wire 2 inserted across the electric wire insertion portion 25 and the entire connecting space 50, the operator presses the push-type operating portion 42 to rotate the rotating body 44 from the non-connected position to the connected position. As the rotating body 44 rotates, the connecting space 47 connected to the electric wire insertion portion 46 is reduced from the entire connecting space 50 to the reduced connecting space 51. This allows the drop wire 2 to be crimped and connected to the connector body 41 with the drop wire 2 sandwiched between the electric wire insertion portion 46 and the inner periphery of the connecting space 47.

[0063] The manual operation performed by the worker is simply to insert the drop wire 2 into the insertion space 26, and then to press the push-type operating portion 42 to rotate the rotating body 44 from the non-connected position to the connected position, thereby simplifying the installation work of the connector-equipped electric wire fuse 1 on the drop wire 2 and shortening the time required for the installation work.

[0064] [Another embodiment] Other embodiments of the present invention will be described below. Note that the configurations of the embodiments described below are not limited to being applied alone, but may also be applied in combination with the configurations of other embodiments.

[0065] (1) In the above first embodiment, an example was given of a case in which a oscillating body 24 having a lever-type operation unit 28 and a protrusion 30 (connection state switching unit 29) was provided as the connection state switching unit, and in the above second embodiment, an example was given of a rotating body 44 having a push-type operation unit 42 and a connecting space forming portion 48 (connection state switching unit). However, the present invention is not limited to these configurations, and the connection state switching unit may be one that switches from a non-connected state to a connected state in response to an artificial manual operation.

[0066] (2) In the above embodiment, the operation unit (the lever-type operation unit 28 or the pressure-type operation unit) and the connection state switching unit (the protrusion 30 or the connecting space forming portion 48) are integrally provided, but the operation unit and the connection state switching unit can also be provided separately.

[0067] (3) In the above embodiment, an example was given of a connector-equipped electric wire fuse 1 in which the fuse body 11 and the connector 21 are separately provided and are pre-connected. However, for example, it is also possible to make an electric wire fuse with a connector in which the fuse body and the connector are integrally provided, and the manner in which the fuse body and the connector are provided can be changed as appropriate. [Explanation of symbols]

[0068] 1 Wire fuse with connector 2. Service line (electric wire) 11 Fuse body 21 Connector 24 Rocking Body 25 Wire insertion part 28 Lever-type operation unit (operation unit) 29 Connection status switching section 30 Protrusion 42 Press-type operation unit (operation unit) 43 Connection status switching unit 44 Rotating Body 46 Wire insertion part 47 Connected space 48 Connected space forming part 50 Overall communication space 51 Reduced communication space C1 Central axis of wire insertion part C2 Rotation axis of the rotor P Oscillation axis X Insertion / removal direction of drop line

Claims

1. A fuse body and a connector connected to the fuse body are provided, The connector is provided with a connection state switching unit that switches the connection state in which an electric wire is connected to the connector in response to an artificial manual operation.

2. The connector includes an electric wire insertion portion into which an electric wire is inserted, and an operation portion that can be manually operated from a non-connection position to a connection position, The wire fuse with connector according to claim 1 , wherein the connection state switching portion switches from the non-connected state to the connected state in coordination with movement of the operation portion from the non-connected position to the connected position.

3. The connector-attached electric wire fuse according to claim 2 , wherein the connection state switching portion switches to the connected state by applying a compressive force to the electric wire inserted in the electric wire insertion portion.

4. the connector is provided with a swinging body that is swingable from the non-connected position to the connected position around a swing axis that is positioned adjacent to the wire insertion portion, The rocking body is provided with the operation unit and the connection state switching unit, The operating portion is provided as a lever-type operating portion extending on the outer diameter side of the oscillation axis of the oscillating body, the connection state switching portion is disposed at a position different from the lever-type operation portion in a circumferential direction of the swing body and is provided as a protruding portion protruding toward an outer diameter side of the swing axis, 4. The wire fuse with connector according to claim 3, wherein the protrusion is located at a retracted position retracted from the wire insertion portion when the rocking body is located at the non-connected position, and is located at a protruding position protruding into the wire insertion portion when the rocking body is located at the connected position.

5. the connector is provided with a rotor that is disposed adjacent to the electric wire insertion portion in a wire insertion / removal direction and is rotatable from the non-connection position to the connection position about a rotation axis that is offset from a central axis of the electric wire insertion portion, The rotating body is provided with the operation unit and the connection state switching unit, The operation unit is provided as a pressing type operation unit that can freely press the rotating body, the connection state switching portion is provided as a connection space forming portion that forms a connection space connected to the electric wire insertion portion in an insertion / removal direction of the electric wire, 4. The wire fuse with connector according to claim 3, wherein the connection space forming portion forms an entire connection space in the connection space that is connected to the entire wire insertion portion when the rotating body is located at the non-connection position, and forms a reduced connection space in the connection space that is connected to a reduced portion obtained by reducing the wire insertion portion when the rotating body is located at the connection position.

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