Current correcting device and arm

Abstract

To prevent displacement of a cable.SOLUTION: A current collecting device 1 comprises an arm 6 supporting a current collector 2. The arm 6 has a first surface 64a, a first rib 61, and a through-hole 641. The first surface 64a is in contact with a cable 8 for electrically connecting the current collector 2 to a mobile apparatus. The first rib 61 holds the cable 8 by sandwiching the cable 8 between itself and the first surface 64a. The cable 8 is passed through the through-hole 641.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present disclosure relates generally to current collectors and arms, and more particularly to a current collector and arm used with the current collector that transfers power from a contact wire to a moving device. [Background technology]

[0002] The current collecting device described in Patent Document 1 includes an attachment member, a current collector, a connecting arm, a cable, and a support member. The attachment member is attached to a mobile device. The connecting arm has one end connected to the current collector and the other end connected to the attachment member. The support member supports the end of the connecting arm. The support member is provided with a cable fixing portion to which the middle of the cable is fixed. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2010-252495 A Summary of the Invention [Problem to be solved by the invention]

[0004] In a current collector, if the cable becomes misaligned, the current collector pulled by the cable may tilt, which may cause the contact between the current collector and the contact wire to become unstable.

[0005] The present disclosure aims to provide a current collecting device and an arm that can suppress displacement of a cable. [Means for solving the problem]

[0006] A current collector according to one embodiment of the present disclosure transmits power from a contact wire to a mobile device. The current collector includes an arm that supports a current collector. The current collector contacts the contact wire. The arm has a first surface, a first rib, and a through hole. The first surface contacts a cable for electrically connecting the current collector to the mobile device. The first rib sandwiches the cable between the first surface and the first rib to hold the cable. The through hole allows the cable to pass through.

[0007] The arm according to one aspect of the present disclosure is used in the current collecting device. Effect of the Invention

[0008] The present disclosure has the advantage of being able to reduce displacement of the cable. [Brief description of the drawings]

[0009] [Figure 1] FIG. 1 is a perspective view of a current collector according to one embodiment. [Diagram 2] FIG. 2 is a front view of the current collector. [Diagram 3] FIG. 3 is a front cross-sectional view of the current collector. [Figure 4] FIG. 4 is an exploded perspective view of the current collector. [Diagram 5] FIG. 5 is an exploded perspective view of the current collector. [Figure 6] FIG. 6 is an exploded perspective view of the current collector. [Figure 7] FIG. 7 is a plan view of an arm of the current collector. [Figure 8] FIG. 8 is a perspective view showing a state in the middle of attaching a cable to an arm of the current collector. [Figure 9] FIG. 9 is a perspective view showing a completed state of attaching the cable to the arm of the current collector. [Figure 10] FIG. 10 is a side cross-sectional view of the current collector. [Figure 11]FIG. 11 is a side cross-sectional view of an arm of the current collector. [Figure 12] FIG. 12 is a front view showing the replacement work of the current collector of the current collector. [Figure 13] FIG. 13 is a front view showing the replacement work of the current collector of the current collector. [Figure 14] FIG. 14 is a front view showing the replacement work of the current collector of the current collector. [Figure 15] FIG. 15 is a perspective view of a current collecting device according to the first modification. [Figure 16] FIG. 16 is a front cross-sectional view of the current collector. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] (Embodiment) The current collector 1 according to the embodiment will be described below with reference to the drawings. However, the embodiment described below is merely one of various embodiments of the present disclosure. The embodiment described below can be modified in various ways depending on the design, etc., as long as the object of the present disclosure can be achieved. In addition, each figure described in the embodiment described below is a schematic diagram, and the ratio of the size and thickness of each component in the figure does not necessarily reflect the actual dimensional ratio.

[0011] (overview) FIG. 1 shows a current collecting device 1 of this embodiment. The current collecting device 1 is attached to a moving device 9 (see FIG. 3). The moving device 9 is a device that moves using electric power. The moving device 9 is, for example, a self-propelled cart or a hoist. The moving device 9 receives a supply of electric power from a trolley wire T1 (see FIG. 12) installed on a rail. The moving device 9 moves along the rail using the electric power obtained in this manner as a power source.

[0012] The current collector 1 of this embodiment transmits power from the trolley wire T1 to the mobile device 9. As shown in Figs. 1 to 4, the current collector 1 includes an arm 6 that supports a current collector 2. The current collector 2 contacts the trolley wire T1. The arm 6 has a first surface 64a, a first rib 61, and a through hole 641. The first surface 64a contacts a cable 8 for electrically connecting the current collector 2 to the mobile device 9. The first rib 61 holds the cable 8 by sandwiching it between the first surface 64a and the first rib 61. The through hole 641 allows the cable 8 to pass through.

[0013] According to the above configuration, the cable 8 is sandwiched between the first rib 61 and the first surface 64a and passed through the through hole 641, thereby making it possible to suppress displacement of the cable 8. Therefore, it is possible to suppress the cable 8 from becoming loose and being pulled.

[0014] The current collector 1 of this embodiment transmits electric power from the trolley wire T1 to the mobile device 9. As shown in Figs. 1 to 3, the current collector 1 includes a fixed part F1 and an arm 6. The fixed part F1 is attached to a base 7 fixed to the mobile device 9. The arm 6 has a first attachment part 66 attached to the fixed part F1 and a second attachment part 67 to which the current collector 2 is attached. The current collector 2 contacts the trolley wire T1. The fixed part F1 has a first hook part 41 and a second hook part 42 that can be hooked to corresponding parts of the base 7. The fixed part F1 can be removed from the base 7 by releasing the hooking of the first hook part 41 and the second hook part 42 from the base 7.

[0015] According to the above configuration, the fixing part F1 and the arm 6 can be removed from the base 7 and moved, and then work can be performed on the current collector 1. The work is, for example, replacement of components (such as the current collector 2) of the current collector 1. According to the above configuration, the fixing part F1 and the arm 6 can be moved to a location suitable for the work, such as a large space. This makes it easier to perform the work compared to performing the work with the fixing part F1 and the arm 6 still attached to the base 7.

[0016] (detail) (1) Overall structure In the following, in each figure, the X-axis direction is defined as the left-right direction, the Y-axis direction as the front-rear direction, and the Z-axis direction as the up-down direction. Furthermore, the positive direction in the X-axis direction is defined as the left side, the positive direction in the Y-axis direction as the front side, and the positive direction in the Z-axis direction as the top side. However, these directions are merely examples and are not intended to limit the direction in which the current collector 1 is used. For example, the current collector 1 may be used so that the positive direction of the Y-axis is the top side. Furthermore, the arrows indicating the various directions in the figures are merely shown for the purpose of explanation and do not have any substance.

[0017] 1, the current collector 1 includes two current collectors 2, two connector portions 3, two fixing portions F1, two compression springs S1, two arms 6, a base 7, and two cables 8. However, the base 7 and the two cables 8 do not necessarily have to be components of the current collector 1. Each of the two fixing portions F1 includes a base 4 and a holder 5.

[0018] (2)Electronic collector The two current collectors 2 have a common configuration. Here, the description focuses on one of the current collectors 2.

[0019] As shown in FIG. 4, the current collector 2 has a contact portion 21, a cover 22, an insertion portion 23, and a shaft portion 24.

[0020] The contact portion 21 is a conductor. The contact portion 21 is made of, for example, a metal material. The contact portion 21 is a member that comes into contact with the trolley wire T1 (see FIG. 12). The longitudinal direction of the contact portion 21 is aligned along the X-axis direction.

[0021] The cover 22 has electrical insulation properties. The cover 22 is made of, for example, a synthetic resin. The cover 22 covers a part of the contact portion 21. One end of the contact portion 21 (the positive side of the Y-axis) is exposed to the outside of the cover 22.

[0022] The insertion portion 23 is made of, for example, a synthetic resin. The insertion portion 23 includes a connecting portion 231, a pillar portion 232, and two protruding pieces 233.

[0023] The connecting portion 231 is connected to the cover 22. More specifically, the shaft portion 24 is passed through through holes provided in the connecting portion 231 and the cover 22, thereby connecting the connecting portion 231 to the cover 22. The cover 22 is rotatable together with the contact portion 21 around the connection point (shaft portion 24) with the connecting portion 231. The shaft portion 24 is, for example, a screw.

[0024] The shape of the pillar portion 232 is cylindrical. The longitudinal direction of the pillar portion 232 is along the Y-axis direction. The pillar portion 232 protrudes from the connecting portion 231. The pillar portion 232 has a slit 2320 at the tip (the negative side of the Y-axis) opposite the connecting portion 231 side. The slit 2320 is a recess that is recessed from the tip of the pillar portion 232 toward the connecting portion 231 side.

[0025] The two protrusions 233 protrude from the tip of the column portion 232 on the side opposite the connecting portion 231 in a direction intersecting the longitudinal direction of the column portion 232. The protrusion direction (leftward) of one of the two protrusions 233 is opposite to the protrusion direction (rightward) of the other protrusion 233. A slit 2320 is formed between the two protrusions 233.

[0026] (3) Connector The two connector portions 3 (first connector portions) correspond one-to-one to the two current collectors 2. Each connector portion 3 is formed integrally with the cover 22 of the corresponding current collector 2.

[0027] The two connector sections 3 have a common configuration. Here, the following description focuses on one of the connector sections 3.

[0028] As shown in Fig. 4, the connector portion 3 has an outer shell 31 and a terminal housed in the outer shell 31. The outer shell 31 has electrical insulation properties. The outer shell 31 is formed of, for example, a synthetic resin. The outer shell 31 protrudes from the cover 22 of the current collector 2. More specifically, the outer shell 31 protrudes from the cover 22 in the negative direction of the Y axis. The terminal is electrically connected to the contact portion 21 of the current collector 2.

[0029] The connector section 3 is configured so that a cable 8 can be connected thereto.

[0030] (4) Cable The two cables 8 correspond one-to-one to the two connector portions 3. Each cable 8 is connected to the corresponding connector portion 3.

[0031] The two cables 8 have a common configuration. Here, the following description focuses on one of the cables 8.

[0032] As shown in FIG. 4, the cable 8 has a cable main body 81 and a second connector portion 82. The cable main body 81 includes a linear conductor and an insulating coating 811 that covers the conductor. The cable main body 81 is flexible. The second connector portion 82 is connected to one end of the cable main body 81. The second connector portion 82 is configured to be connectable to the connector portion 3 (first connector portion). The second connector portion 82 is also configured to be disconnectable from the connector portion 3. More specifically, the second connector portion 82 and the connector portion 3 are connected to each other by pushing the second connector portion 82 into the connector portion 3. The second connector portion 82 is also disconnected from the connector portion 3 by pulling out the second connector portion 82 from the connector portion 3.

[0033] (5) Arm The two arms 6 correspond one-to-one to the two current collectors 2. To each arm 6, a corresponding current collector 2 is attached.

[0034] Moreover, the two arms 6 correspond one-to-one to the two cables 8. Each arm 6 holds a corresponding cable 8.

[0035] The two arms 6 have a common configuration. Here, the following description focuses on one of the arms 6.

[0036] As shown in Figures 3 and 4, the arm 6 has a first rib 61, two second ribs 62, a third rib 63, an arm body 64, a wall portion 65, a first mounting portion 66, a second mounting portion 67, a second guide portion 68, and a second spring arrangement portion 69.

[0037] The longitudinal direction of the arm body 64 is along the X-axis direction. The arm body 64 has a rectangular parallelepiped shape.

[0038] The arm body 64 has a first surface 64a and a second surface 64b. The first surface 64a is a surface on the positive side of the Y axis (front surface). The first surface 64a is a surface facing the trolley wire T1 (see FIG. 12). The second surface 64b is a surface on the opposite side to the first surface 64a (rear surface). The second surface 64b is a surface facing the base 7.

[0039] The arm body 64 has a through hole 641 (a first through hole) and a second through hole 642.

[0040] The through-hole 641 is provided in the first surface 64a and passes through the arm body 64 in the Y-axis direction.

[0041] The second through hole 642 is provided in the first surface 64a, and penetrates the arm body 64 in the Y-axis direction (see FIG. 7). The second through hole 642 is provided on the positive side of the X-axis with respect to the through hole 641.

[0042] Furthermore, the arm body 64 has a third through hole 643. The third through hole 643 passes through the arm body 64 in the Z-axis direction. The first attachment portion 66 passes through the third through hole 643.

[0043] The wall portion 65 protrudes from the first surface 64a along the normal direction of the first surface 64a. That is, the wall portion 65 protrudes from the first surface 64a along the positive direction of the Y axis. The wall portion 65 protrudes from the end of the arm main body 64 on the positive side of the Z axis. The thickness direction of the wall portion 65 is along the Z axis direction. The longitudinal direction of the wall portion 65 is along the X axis direction.

[0044] The first rib 61 protrudes from the wall portion 65. More specifically, the first rib 61 protrudes from the wall portion 65 in the negative direction of the Z axis. The shape of the first rib 61 is cylindrical. The tip of the first rib 61 is rounded and formed into a dome shape.

[0045] A portion 80d of the cable 8 (see FIG. 9) is sandwiched between the first surface 64a and the first rib 61. The cable 8 is disposed along the wall portion 65 (see FIG. 9). The longitudinal direction of the wall portion 65 is aligned with the extension direction (X-axis direction) of the cable 8 between the first surface 64a and the first rib 61.

[0046] Each of the two second ribs 62 protrudes from the first surface 64a along the normal direction of the first surface 64a. That is, the second rib 62 protrudes from the first surface 64a along the positive direction of the Y axis. The second rib 62 protrudes from the end of the arm body 64 on the negative side of the Z axis. The second rib 62 is shaped like a plate. The thickness direction of the second rib 62 is along the Z axis direction. The second rib 62 faces the wall portion 65.

[0047] The two second ribs 62 are aligned in the X-axis direction. Hereinafter, one of the two second ribs 62 will be referred to as the second rib 62a, and the other will be referred to as the second rib 62b. The second rib 62b is provided on the positive side of the X-axis with respect to the second rib 62a.

[0048] The first rib 61 is provided at a position visible through the gap between the two second ribs 62. Specifically, the first rib 61 is provided at a position visible through the gap between the two second ribs 62 when viewed from the negative side (lower side) of the Z axis.

[0049] 7 and 12, the distance L1 between the two second ribs 62 at the height position of the first rib 61 is longer than the shortest distance L2 between the wall portion 65 and the two second ribs 62. The distance L1 between the two second ribs 62 at the height position of the first rib 61 is the length of a line segment that overlaps the first rib 61 and connects the two second ribs 62 in the X-axis direction when viewed from the Z-axis direction.

[0050] As shown in Figs. 3 and 4, the third rib 63 protrudes from the wall portion 65. More specifically, the third rib 63 protrudes from the wall portion 65 in the negative direction of the Z axis. The third rib 63 has a plate-like shape. The thickness direction of the third rib 63 is aligned with the Y axis direction. The third rib 63 faces the first surface 64a.

[0051] The third rib 63 is provided between the first rib 61 and the through hole 641. The third rib 63 is provided between the second rib 62a and the through hole 641.

[0052] The first attachment portion 66 is, for example, a screw. The first attachment portion 66 is attached to the fixed portion F1. More specifically, the first attachment portion 66 is passed through the third through-hole 643 and the fourth through-hole 521 (see FIG. 4) of the fixed portion F1 to rotatably attach the arm body 64 to the holder 5 of the fixed portion F1.

[0053] The second mounting portion 67 is provided at the end of the arm body 64 on the negative side of the X-axis. The second mounting portion 67 is a portion to which the current collector 2 is attached. The second mounting portion 67 has a mounting hole 671. The current collector 2 is attached to the second mounting portion 67 by inserting the insertion portion 23 of the current collector 2 into the mounting hole 671. The width of the insertion portion 23 is larger than the width of the mounting hole 671, but when the insertion portion 23 receives a pinching force, the width of the insertion portion 23 becomes smaller than the width of the mounting hole 671. This makes it possible to insert the insertion portion 23 into the mounting hole 671.

[0054] More specifically, the width of the column portion 232 of the insertion portion 23 is smaller than the width of the mounting hole 671. The width of the tip portion of the insertion portion 23 where the two protrusions 233 are provided is larger than the mounting hole 671. By sandwiching the two protrusions 233 from both sides, the insertion portion 23 is elastically deformed so as to narrow the width of the slit 2320, and the width of the tip portion of the insertion portion 23 becomes smaller. By inserting the tip portion of the insertion portion 23 into the mounting hole 671 in this state, the current collector 2 is attached to the second mounting portion 67.

[0055] The mounting hole 671 penetrates the second mounting portion 67 in the Y-axis direction. The tip of the insertion portion 23 is inserted from the opening of the mounting hole 671 on the positive side of the Y-axis and protrudes from the opening on the negative side of the Y-axis (see FIG. 2). Then, the two protruding pieces 233 elastically return to their original position, and the width of the tip of the insertion portion 23 increases. Thus, the two protruding pieces 233 function as stoppers that prevent the insertion portion 23 from coming out of the mounting hole 671.

[0056] Furthermore, when the two protruding pieces 233 are pinched from both sides while the insertion portion 23 is inserted into the mounting hole 671, the insertion portion 23 is elastically deformed so as to narrow the width of the slit 2320, and the width of the tip of the insertion portion 23 becomes smaller. Then, by moving the insertion portion 23 (together with the entire current collector 2) in the positive direction of the Y axis, the insertion portion 23 can be pulled out of the mounting hole 671, and the current collector 2 can be removed from the arm 6. In this way, the current collector 2 can be removed from the arm 6 by moving in one direction. Therefore, the current collector 2 can be easily replaced.

[0057] 3 and 10, the second guide portion 68 protrudes from the arm main body 64. More specifically, the second guide portion 68 protrudes from the second surface 64b of the arm main body 64. The second guide portion 68 is provided on the positive side of the X-axis relative to the first attachment portion 66.

[0058] 3, the second spring arrangement portion 69 protrudes from the arm main body 64. More specifically, the second spring arrangement portion 69 protrudes from the second surface 64b of the arm main body 64. The second spring arrangement portion 69 is provided on the negative side of the X-axis relative to the first attachment portion 66.

[0059] The arm 6 is rotatable about the first mounting portion 66, and the distance L3 (see FIG. 7) between the first mounting portion 66 and the first rib 61 is shorter than the distance L4 (see FIG. 7) between the first mounting portion 66 and the second mounting portion 67. Therefore, even if a force is applied to the arm body 64 during the task of sandwiching the cable 8 between the first rib 61 and the first surface 64a, the displacement of the first rib 61 is relatively small. This makes the task easy to perform.

[0060] (6) Fixed part 1, the two fixed portions F1 correspond one-to-one to the two arms 6. The corresponding arm 6 is attached to each fixed portion F1.

[0061] Each fixing portion F1 has a holder 5 and a base 4 to which the holder 5 is attached.

[0062] The two fixed portions F1 correspond one-to-one to the two compression springs S1. Each fixed portion F1 holds a corresponding compression spring S1.

[0063] The two fixed parts F1 have a common configuration, and the following description focuses on one of the fixed parts F1.

[0064] (6.1) Holder As shown in FIGS. 3 and 4, the holder 5 has a support portion 51, a connecting portion 52, a first retaining portion 53, a spring rest 54, and a first spring arrangement portion 55.

[0065] The support portion 51 has a columnar shape. The axial direction of the support portion 51 is along the Y-axis direction. A connecting portion 52 protrudes from a tip portion 511 of the support portion 51 in the positive direction of the Y-axis. The connecting portion 52 is a portion to which the arm 6 is attached. The width of the connecting portion 52 in the Z-axis direction is smaller than the width of the support portion 51 in the Z-axis direction. The connecting portion 52 has a fourth through hole 521. The fourth through hole 521 penetrates the connecting portion 52 in the Z-axis direction. The support portion 51 has a recess 512 on the surface on the negative side of the Y-axis.

[0066] The first attachment portion 66 is attached to the holder 5. More specifically, the first attachment portion 66 is passed through the third through-hole 643 of the arm body 64 and the fourth through-hole 521 of the holder 5. In this way, the first attachment portion 66 rotatably attaches the arm body 64 to the holder 5. In addition, the arm body 64 faces the tip portion 511 of the support portion 51. The arm 6 is rotatable about the first attachment portion 66 to a position where the arm body 64 contacts the tip portion 511.

[0067] The first retaining portion 53 protrudes from a side surface of the support portion 51. More specifically, the first retaining portion 53 protrudes from the support portion 51 in the positive direction of the X-axis.

[0068] The spring rest 54 protrudes from a side surface of the support portion 51. More specifically, the first retaining portion 53 protrudes from the support portion 51 in the negative direction of the X-axis. The spring rest 54 has a recess 541 on its surface on the positive side of the Y-axis. The compression spring S1 is inserted into the recess 541.

[0069] The first spring arrangement portion 55 protrudes from the spring rest 54. More specifically, the first spring arrangement portion 55 protrudes from the bottom surface of the recess 541 of the spring rest 54.

[0070] More specifically, the compression spring S1 is a compression coil spring. As shown in FIG. 3, a first end of the compression spring S1 faces the spring stand 54 of the holder 5. A first spring arrangement portion 55 is inserted into the first end of the compression spring S1. A second end of the compression spring S1 faces the second surface 64b of the arm body 64. A second spring arrangement portion 69 is inserted into the second end of the compression spring S1. This holds the compression spring S1.

[0071] The compression spring S1 supports the arm 6. That is, the compression spring S1 applies a spring force to the arm body 64 in the positive direction of the Y axis.

[0072] The compression spring S1 is sandwiched between an area (where the second spring arrangement portion 69 is provided) between the first attachment portion 66 and the second attachment portion 67 of the second surface 64b and the spring base 54 of the holder 5 of the fixed portion F1. When the compression spring S1 presses the arm main body 64 in the positive direction of the Y axis, the arm 6 rotates about the first attachment portion 66 so that the second attachment portion 67 of the arm 6 moves in the positive direction of the Y axis. As a result, the current collector 2 receives a force in the positive direction of the Y axis, and the contact pressure between the current collector 2 and the trolley wire T1 (see FIG. 12) is ensured.

[0073] (6.2) Pedestal As shown in FIGS. 3, 5 and 6, the base 4 has a first hook portion 41, a second hook portion 42, a body 43, a stopper 44, a cylindrical portion 45, and a second retaining portion 46.

[0074] The body 43 includes a bottom portion 431 and a side portion 432 .

[0075] The bottom portion 431 has a plate-like shape. The thickness direction of the bottom portion 431 is along the Y-axis direction. The bottom portion 431 has a first outer surface 431a. The normal line of the first outer surface 431a is along the negative direction of the Y-axis. The bottom portion 431 includes a recessed portion 431e formed in the first outer surface 431a.

[0076] The side portion 432 protrudes from the bottom portion 431. More specifically, the side portion 432 protrudes from the positive side of the bottom portion 431 along the positive direction of the X-axis in the positive direction of the Y-axis. The side portion 432 has a first guide portion 47 at the tip facing the positive direction of the Y-axis. The first guide portion 47 is a V-shaped groove portion. The side portion 432 includes a second outer surface 432b. A normal to the second outer surface 432b is along the positive direction of the X-axis.

[0077] Thus, the body 43 includes a first outer surface 431a and a second outer surface 432b whose normal directions are different from each other. The first hook portion 41 protrudes from the first outer surface 431a, and the leaf spring-shaped second hook portion 42 protrudes from the second outer surface 432b.

[0078] The first hook portion 41 protrudes in the negative direction of the X-axis from a tip of the bottom portion 431 including the first outer surface 431a on the negative side of the X-axis. The first outer surface 431a has the above-mentioned recess 431e on the positive side of the X-axis with respect to the first hook portion 41.

[0079] The second hook portion 42 has a leaf spring portion 421 and a claw portion 422. The leaf spring portion 421 includes a first portion 421c and a second portion 421d. The first portion 421c of the leaf spring portion 421 protrudes from the second outer surface 432b in the positive direction of the X-axis, and the second portion 421d of the leaf spring portion 421 protrudes from the tip of the first portion 421c in the positive direction of the Y-axis. This forms the second hook portion 42 in an L-shape. The boundary portion between the first portion 421c and the second portion 421d (the portion corresponding to the corner of the L-shape) is R-shaped.

[0080] The second hook portion 42 has a leaf spring portion 421 and is easily elastically deformed. The elastic modulus of the second hook portion 42 is smaller than the elastic modulus of the first hook portion 41.

[0081] The claw portion 422 protrudes from the second portion 421d of the leaf spring portion 421. More specifically, the claw portion 422 protrudes in the positive direction of the X-axis.

[0082] The stopper 44 protrudes from the tip of the second portion 421d. More specifically, the stopper 44 protrudes in the positive direction of the X-axis. The stopper 44 is provided on the positive side of the Y-axis with respect to the claw portion 422. The stopper 44 is provided with a gap between it and the claw portion 422.

[0083] The cylindrical portion 45 protrudes from the bottom portion 431. More specifically, the cylindrical portion 45 protrudes in the positive direction of the Y-axis. The cylindrical portion 45 is provided on the negative side of the X-axis with respect to the side portion 432.

[0084] The second retaining portion 46 protrudes from the side portion 432. More specifically, the second retaining portion 46 protrudes in the negative direction of the X-axis.

[0085] As shown in FIG. 3, the holder 5 is attached to the base 4. That is, the holder 5 moves in the negative direction of the Y axis, and the cylindrical portion 45 of the base 4 is inserted into the recess 512 of the holder 5, whereby the holder 5 is attached to the base 4. At this time, the first retaining portion 53 of the holder 5 is disposed on the negative side of the Y axis with respect to the second retaining portion 46 of the base 4, and faces the second retaining portion 46, thereby preventing the holder 5 from coming off the base 4. More specifically, with the cylindrical portion 45 of the base 4 inserted into the recess 512 of the holder 5, the holder 5 rotates about the cylindrical portion 45, whereby the first retaining portion 53 is disposed on the negative side of the Y axis with respect to the second retaining portion 46.

[0086] (7) Bass The base 7 is made of, for example, a metal material. More specifically, the base 7 is formed by, for example, subjecting a metal plate to punching, bending, and the like.

[0087] As shown in FIGS. 3 and 5, the base 7 includes a bottom plate 71 and a side plate 72.

[0088] The bottom plate 71 has a bottom plate main body 710 , two third hook portions 711 , and two protrusions 712 .

[0089] The bottom plate body 710 is formed in a plate shape. The thickness direction of the bottom plate body 710 is along the Y-axis direction. The bottom plate body 710 includes two fifth through holes 7101 and two sixth through holes 7102.

[0090] The two third hook portions 711 correspond one-to-one to the two fifth through holes 7101. Each third hook portion 711 is provided at a position so as to cover a portion of the corresponding fifth through hole 7101. Each third hook portion 711 protrudes from the bottom plate main body 710. More specifically, each third hook portion 711 protrudes in the positive direction of the Y-axis.

[0091] The two third hook portions 711 correspond to the two bases 4 in a one-to-one relationship. The first hook portion 41 of the corresponding base 4 is hooked to each of the third hook portions 711. More specifically, as shown in FIG. 3, the first hook portion 41 is passed through the fifth through hole 7101 and disposed on the negative side of the Y axis with respect to the third hook portion 711. In the Y axis direction, the first hook portion 41 and the third hook portion 711 come into contact with each other. This restricts the movement of the base 4 in the positive direction of the Y axis. Furthermore, in the X axis direction, the base 4 and the third hook portion 711 come into contact with each other. This restricts the movement of the base 4 in the negative direction of the X axis.

[0092] The two fifth through holes 7101 are provided in an area facing the two first hook portions 41.

[0093] The two protrusions 712 correspond one-to-one to the two sixth through holes 7102. Each protrusion 712 is provided at a position so as to cover a portion of the corresponding sixth through hole 7102. Each protrusion 712 protrudes from the bottom plate main body 710. More specifically, each protrusion 712 protrudes in the positive direction of the Y axis.

[0094] The two protrusions 712 correspond one-to-one to the two pedestals 4. Each protrusion 712 is inserted into the corresponding recess 431e of the pedestal 4. In the X-axis direction, the protrusion 712 and the inner surface of the recess 431e come into contact with each other. This restricts the movement of the pedestal 4 in the negative direction of the X-axis.

[0095] As shown in FIG. 3, each of the two sixth through holes 7102 includes a bolt hole through which a fastening member 110 (bolt) that connects the base 7 and the movable device 9 is passed.

[0096] The side plate 72 has a side plate main body 721 and a fourth hook portion 722 .

[0097] The side plate main body 721 has a plate-like shape. The side plate main body 721 protrudes from the bottom plate main body 710 in the thickness direction of the bottom plate main body 710 (the positive direction of the Y axis). The thickness direction of the side plate main body 721 is along the X-axis direction.

[0098] The fourth hook portion 722 has a plate-like shape. The fourth hook portion 722 protrudes from the tip (the tip on the positive side of the Y-axis) of the side plate main body 721 in the negative direction of the X-axis. The thickness direction of the fourth hook portion 722 is along the Y-axis direction. The second hook portions 42 of the two pedestals 4 are hooked to the fourth hook portion 722. The second hook portions 42 are hooked to the fourth hook portion 722 with elastic deformation. That is, the second hook portion 42 is snap-fit ​​connected to the fourth hook portion 722.

[0099] The connection between the base 7 and the fixed portion F1 is realized only by hooking the base 7 and the fixed portion F1 (the first hook portion 41 and the second hook portion 42). Therefore, connection and disconnection are easier than when the base 7 and the fixed portion F1 are connected using a fastening member such as a bolt.

[0100] The side plate 72 has two through holes 73 (seventh through holes). The two through holes 73 correspond one-to-one to the two bases 4. Each through hole 73 is provided in an area facing the second hook portion 42 of the corresponding base 4. The two through holes 73 are provided across the side plate main body 721 and the fourth hook portion 722.

[0101] (8) Attaching the base to a mobile device 3, the base 7 is fixed to the movable device 9. The base 7 is fixed to the movable device 9 using, for example, two fastening members 110. That is, the movable device 9 has two through holes at positions overlapping with the two sixth through holes 7102 of the base 7, and the fastening members 110 are passed through each through hole of the movable device 9 and the sixth through hole 7102 overlapping with the through hole. Then, for example, a washer 120 and a nut 130 are attached to each fastening member 110.

[0102] (9) Removing the pedestal from the base Two pedestals 4 are attached to the base 7. Here, focusing on one of the two pedestals 4, an example of a procedure for removing the pedestal 4 from the base 7 will be described with reference to Figs. 12 to 14. Note that Figs. 12 and 13 show cross sections of a portion of each of the base 7 and the pedestal 4.

[0103] First, as shown in FIG. 12, the worker passes a tool 140 such as a flathead screwdriver through the through hole 73 of the base 7. Then, the worker operates to push the second hook portion 42 with the tool 140. That is, the worker operates to push the second hook portion 42 in the negative direction of the X-axis. Then, the second hook portion 42 is elastically deformed and displaced in the negative direction of the X-axis. This releases the hook between the second hook portion 42 and the fourth hook portion 722. More specifically, when the base 4 is pushed by the tool 140, it rotates around the contact point between the first hook portion 41 and the third hook portion 711 as shown in FIG. 13.

[0104] Thereafter, the worker separates the first hook portion 41 from the third hook portion 711, and removes the first hook portion 41 from the fifth through hole 7101 in which the third hook portion 711 is provided. This causes the pedestal 4 to be removed from the base 7, as shown in FIG.

[0105] (10) Attaching the stand to the base The pedestal 4 can be attached to the base 7 by reversing the procedure for removing the pedestal 4 from the base 7. An example of the procedure for attaching the pedestal 4 to the base 7 will be described below with reference to Figs. 12 and 13, focusing on one of the two pedestals 4.

[0106] 13, the first hook portion 41 of the base 4 is inserted into the fifth through-hole 7101 and disposed at a position where it contacts the third hook portion 711 from the negative side of the Y axis. At this time, the orientation of the base 4 is rotated around the contact point between the first hook portion 41 and the third hook portion 711 compared to the orientation after the base 4 is attached to the base 7.

[0107] In this manner, the second hook portion 42 can be hooked onto the fourth hook portion 722 of the base 7 by rotating the fixed portion F1 around the first hook portion 41 while the first hook portion 41 is hooked onto the third hook portion 711 of the base 7. That is, the operator applies force to the fixed portion F1 in a direction to rotate the fixed portion F1 from the state of FIG. 13 as shown in FIG. 12. As a result, the second hook portion 42 comes into contact with the fourth hook portion 722. More specifically, the claw portion 422 of the second hook portion 42 comes into contact with the fourth hook portion 722. The second hook portion 42 elastically deforms upon receiving a reaction force in the negative direction of the X-axis from the fourth hook portion 722, and the claw portion 422 of the second hook portion 42 climbs over the fourth hook portion 722. Therefore, as shown in FIG. 12, the fourth hook portion 722 moves between the claw portion 422 and the stopper 44.

[0108] The second hook portion 42 moves in a predetermined direction (a direction along the negative direction of the Y-axis) and is hooked on the fourth hook portion 722 of the base 7. The stopper 44 restricts the second hook portion 42 hooked on the fourth hook portion 722 of the base 7 from moving in the predetermined direction. In other words, even if a force in a direction that moves the second hook portion 42 in the predetermined direction is applied to the fixing portion F1 after the second hook portion 42 is hooked on the fourth hook portion 722, the stopper 44 comes into contact with the fourth hook portion 722, thereby preventing the second hook portion 42 from moving.

[0109] As described above, the elastic modulus of the second hook portion 42 is smaller than the elastic modulus of the first hook portion 41. Therefore, when attaching the seat 4 to the base 7, the first hook portion 41 is hooked onto the base 7, and then the second hook portion 42 is elastically deformed to hook the second hook portion 42 onto the base 7. In addition, when removing the seat 4 from the base 7, the second hook portion 42 is elastically deformed to remove it from the base 7, and then the first hook portion 41 is removed from the base 7. This makes the removal and attachment operations easier.

[0110] (11) Current collector replacement procedure Next, an example of a procedure for replacing the current collector 2 will be described with reference to Figures 12 to 14. The procedure for replacing the current collector 2 includes a task of disassembling the configuration of the current collector 1 and a task of assembling the configuration of the current collector 1.

[0111] First, a description will be given of the operation of disassembling the current collector 1. As shown in Fig. 12, the worker removes the cable 8 from the connector portion 3. More specifically, the worker removes the cable 8 from the connector portion 3 by pulling the second connector portion 82 of the cable 8.

[0112] 12, the worker performs an operation of pushing the second hook portion 42 with the tool 140. This releases the engagement between the second hook portion 42 and the fourth hook portion 722, and the fixing portion F1 rotates around the contact point between the first hook portion 41 and the third hook portion 711, as shown in FIG.

[0113] Thereafter, as shown in FIG. 14, the worker removes the fixed part F1 from the base 7. At this time, the fixed part F1, the arm 6, and the current collector 2 are integrally connected. The worker moves the fixed part F1, the arm 6, and the current collector 2 to a location where the work can be easily performed. Furthermore, the worker removes the current collector 2 from the second attachment part 67 as shown in FIG.

[0114] The above is the work of disassembling the current collecting device 1. Next, the worker performs the work of assembling the current collecting device 1. The work of assembling the current collecting device 1 includes the work of attaching a replacement current collector 2 to the second attachment portion 67. The work of assembling the current collecting device 1 is performed in the reverse order to the work of disassembling the current collecting device 1.

[0115] In the work of assembling the current collector 1, first, as shown in FIG. 13, the worker attaches the replacement current collector 2 to the second attachment portion 67. Next, as shown in FIG. 13, the worker hooks the first hook portion 41 to the third hook portion 711 of the base 7. Furthermore, the worker rotates the fixing portion F1 around the first hook portion 41, thereby hooking the second hook portion 42 to the fourth hook portion 722 of the base 7 as shown in FIG. 12. Finally, the worker connects the cable 8 to the connector portion 3. This completes the work of assembling the current collector 1.

[0116] As described above, the current collector 2 can be replaced without removing the base 7 from the mobile device 9. Furthermore, the task of removing the fixed part F1 from the base 7 can be achieved by the simple operation of pressing the second hook part 42, so that the current collector 2 can be easily replaced.

[0117] Moreover, the worker can move the fixing part F1, the arm 6, and the current collector 2 to a location where the work can be easily performed, and then replace the current collector 2. Specifically, the worker can move the current collector 2 away from the trolley wire T1, and then remove the current collector 2 from the second attachment part 67. Therefore, when removing the current collector 2 from the second attachment part 67, interference between the current collector 2 and the trolley wire T1 can be suppressed.

[0118] (12) Procedure for attaching the cable to the arm Each of the two arms 6 holds a corresponding cable 8. The cable 8 electrically connects the current collector 2 to a mobile device 9. The first surface 64a of the arm 6, the first rib 61, the two second ribs 62, the third rib 63, and the through hole 641 are an example of a fixing structure 600 (see FIG. 4) for fixing the cable 8.

[0119] The cable 8 can be held by the arm 6 even when the arm 6 is attached to the fixed part F1 and the current collector 2 is attached to the arm 6. The cable 8 can be held by the arm 6 even when the arm 6 is separated from at least one of the fixed part F1 and the current collector 2.

[0120] An example of a procedure for holding cable 8 on arm 6 will be described below with reference to FIGS.

[0121] First, the worker inserts the cable 8 into the through-hole 641 of the arm body 64. A first end of the cable 8 is pulled out to the second surface 64b side of the arm body 64 through the through-hole 641 (see FIG. 3). A second end of the cable 8 is disposed on the first surface 64a side of the arm body 64.

[0122] Next, the worker places the portion of the cable 8 on the first surface 64a side (including the portions 80b to 80e of the cable 8) on the positive side of the Y axis relative to the first rib 61.

[0123] Furthermore, the worker moves the portion of the cable 8 on the first surface 64a side in the negative direction of the Y axis. As a result, the worker arranges the cable 8 as shown in FIG. 8. That is, the worker passes the cable 8 through the gap between the third rib 63 and the second rib 62a, and arranges a part 80b of the cable 8 between the third rib 63 and the first surface 64a as shown in FIG. 8. The worker also arranges a part 80c of the cable 8 between the second rib 62a and the wall portion 65 as shown in FIG. 8. The worker also bends a part 80d of the cable 8 around the first rib 61, and arranges the part 80d of the cable 8 on the negative side of the Z axis with respect to the first rib 61. The worker also arranges a part 80e of the cable 8 between the second rib 62b and the wall portion 65 as shown in FIG. 8.

[0124] The portions 80b, 80c, 80d, and 80e of the cable 8 are arranged in this order in the X-axis direction.

[0125] In order to arrange the portion 80d of the cable 8 around the first rib 61, the distance from the first rib 61 to each of the two second ribs 62 is preferably, for example, 0.9 to 1.2 times the width of the cable 8. Furthermore, in order to arrange the portion 80d of the cable 8 around the first rib 61, the first rib 61 is preferably provided at a position that is visible through the gap between the two second ribs 62, as described above.

[0126] Next, the worker pushes the portion 80d of the cable 8 through the gap between the two second ribs 62, and inserts the portion 80d of the cable 8 between the first rib 61 and the first surface 64a. This removes the bend in the portion 80d of the cable 8, as shown in Fig. 9. The direction in which the worker pushes the portion 80d of the cable 8 is the positive direction of the Z axis (the direction of the arrow P1 in Fig. 8).

[0127] By the above procedure, the cable 8 can be held by the arm 6.

[0128] Here, the cable 8 is pressed between the first surface 64a and the first rib 61. More specifically, a portion 80d of the cable 8 is pressed between the first surface 64a and the first rib 61. That is, the diameter of the cable 8 is equal to or slightly smaller than the distance between the first surface 64a and the first rib 61, and the cable 8 is slightly compressed and fixed between the first surface 64a and the first rib 61. Therefore, the cable 8 is less likely to move in the extension direction of the cable 8. The movement of the cable 8 in the extension direction of the cable 8 corresponds to, for example, the movement of the portion 80d of the cable 8 that was between the first rib 61 and the first surface 64a before the movement to a position between the second rib 62a and the wall portion 65, or a position between the second rib 62b and the wall portion 65, or the like.

[0129] For example, even if a portion 80a (see FIG. 9) of the cable 8 on the second surface 64b side is pulled, the cable 8 is less likely to move in the direction of the pulling force. Also, for example, the cable 8 can be prevented from moving in the extension direction of the cable 8 due to its own weight.

[0130] If the cable 8 does not move in the extension direction, the length L5 (see FIG. 2) of the cable 8 from the through hole 641 to the connector portion 3 is constant. Therefore, the weight of the cable 8 from the through hole 641 to the connector portion 3 is also constant.

[0131] Therefore, it is possible to suppress the current collector 2 from being tilted due to the weight of the cable 8 as the length L5 increases (i.e., the cable 8 becomes slack). This makes it possible to suppress the current collector 2 from being tilted and the contact area between the current collector 2 and the trolley wire T1 (see FIG. 12) from being reduced.

[0132] In addition, when the cable 8 is pulled in a direction that decreases the length L5 (the positive direction of the X-axis), it is possible to suppress a force in the negative direction of the Y-axis from being applied to the current collector 2 via the cable 8. This makes it possible to suppress the current collector 2 from being displaced in the negative direction of the Y-axis and separated from the trolley wire T1.

[0133] Furthermore, the cable 8 is inserted between the wall portion 65 and the two second ribs 62. This can prevent the cable 8 from being displaced in the opposing direction between the wall portion 65 and the two second ribs 62 (the Z-axis direction). In particular, when the negative direction of the Z-axis coincides with the direction of gravity, it can prevent the cable 8 from being displaced by its own weight. This can prevent the cable 8 from coming into contact with surrounding structures (another cable 8, etc.).

[0134] Moreover, the cable 8 is inserted between the first surface 64a and the third rib 63. This makes it possible to suppress the cable 8 from being displaced in a direction away from the first surface 64a. This makes it possible to suppress the cable 8 from coming into contact with the surrounding components (the trolley wire T1, etc.).

[0135] (13) First guide portion and second guide portion 10, the base 4 of the fixed portion F1 has a first guide portion 47. The arm 6 has a second guide portion 68. The first guide portion 47 and the second guide portion 68 are configured to prevent the orientation of the arm 6 from deviating from a predetermined orientation.

[0136] The first guide portion 47 is a groove portion, and the second guide portion 68 is a protrusion portion that is inserted into the groove portion.

[0137] The groove (first guide portion 47) is recessed in the negative direction of the Y axis. The negative side of the groove along the Y axis corresponds to the depth of the groove. The width of the groove narrows toward the depth. More specifically, the groove is formed in a V shape.

[0138] The protrusion (second guide portion 68) faces the groove. The protrusion has a shape that protrudes in the negative direction of the Y axis. The protrusion has a narrower width toward the negative side of the Y axis. More specifically, the protrusion is formed in a V shape.

[0139] A compression spring S1 applies a spring force to the arm 6 at a portion to the right (negative side of the X-axis) of the first attachment portion 66, which is the rotation center of the arm 6. In addition, a second guide portion 68 is provided to the left of the first attachment portion 66. Therefore, when the compression spring S1 presses the arm 6, the second guide portion 68 moves toward the first guide portion 47. In other words, when the compression spring S1 presses the arm 6, the second guide portion 68 moves in the negative direction of the Y-axis.

[0140] 10 shows a state in which the orientation of arm 6 is correct. At this time, tip 471 of first guide part 47 on the negative side of the Y axis and tip 681 of second guide part 68 on the negative side of the Y axis face each other in the Y axis direction.

[0141] The holder 5 can rotate around the cylindrical portion 45 (see FIG. 3) of the base 4. The arm 6 can rotate around the cylindrical portion 45 together with the holder 5. It is assumed that the arm 6 rotates around an axis parallel to the Y axis in this way, causing the orientation of the arm 6 to shift as shown in FIG. 11. In this case, the tip 471 of the first guide portion 47 and the tip 681 of the second guide portion 68 face each other in a direction intersecting the Y axis. The tip 681 of the second guide portion 68 is in contact with the inclined surface of the first guide portion 47. The second guide portion 68 is biased (receives a force) in the negative direction of the Y axis by the spring force applied to the arm 6 from the compression spring S1. Therefore, the arm 6 rotates around the axis parallel to the Y axis so that the second guide portion 68 moves along the inclined surface of the first guide portion 47 (in the direction of the arrow P2 in FIG. 11). Finally, the arm 6 rotates to a position where the tip 681 of the second guide part 68 faces the tip 471 of the first guide part 47. That is, the orientation of the arm 6 becomes correct as shown in Fig. 10. In this manner, the misalignment of the orientation of the arm 6 can be corrected by using the spring force of the compression spring S1.

[0142] (Modification) Modifications of the embodiment are listed below. The following modifications may be implemented in appropriate combination. Hereinafter, the configuration of the embodiment described above will be referred to as a basic example.

[0143] (Variation 1) A current collecting device 1A according to the first modification will be described below with reference to Figures 15 and 16. The same components as those in the basic example are given the same reference numerals and the description thereof will be omitted.

[0144] The current collector 1A of this modified example 1 differs from the basic example in that it includes three current collectors 2, three arms 6, three fixing parts F1, three compression springs S1, and three cables 8. It also differs from the basic example in that each current collector 2 has two contact parts 21 and two covers 22.

[0145] The base 7 also has a structure for hooking and attaching each of the three fixing parts F1. Specifically, the base 7 has three third hook parts 711, and the first hook part 41 of the corresponding fixing part F1 is hooked to each of the third hook parts 711. The base 7 also has a fourth hook part 722, and the second hook part 42 of each of the three fixing parts F1 is hooked to the fourth hook part 722. The base 7 has three through holes 73 that face the three second hook parts 42, respectively.

[0146] The three current collectors 2 have a common configuration. Here, the description focuses on one of the current collectors 2.

[0147] The current collector 2 has two contact portions 21, two covers 22, an insertion portion 23 (first insertion portion), a shaft portion 24, a connection housing 25, a second insertion portion 26, and two shaft portions 27.

[0148] The configuration of the insertion portion 23 is the same as that of the basic example.

[0149] The shaft portion 24 rotatably connects the connection housing 25 to the insertion portion 23. That is, the connection housing 25 is rotatable around the shaft portion 24.

[0150] The longitudinal direction of the connecting housing 25 is aligned along the X-axis direction. The connecting housing 25 has third attachment portions 251 on both ends in the longitudinal direction. That is, the connecting housing 25 has two third attachment portions 251.

[0151] The structure of each of the two third mounting portions 251 is similar to that of the second mounting portion 67 of the arm 6. That is, the third mounting portion 251 has a mounting hole 2511.

[0152] The structure of each of the two second insertion portions 26 is similar to that of the insertion portion 23. The two second insertion portions 26 correspond one-to-one to the two covers 22. Each second insertion portion 26 connects the corresponding cover 22 and the connection housing 25.

[0153] More specifically, the second insertion portion 26 includes a connecting portion 261 , a pillar portion 262 , and two protruding pieces 263 .

[0154] The connecting portion 261 is connected to the cover 22. More specifically, the shaft portion 27 is passed through through holes provided in the connecting portion 261 and the cover 22, respectively, thereby connecting the connecting portion 261 to the cover 22. The cover 22 is rotatable together with the contact portion 21 around the connection point with the connecting portion 261 (shaft portion 27).

[0155] The shape of the pillar portion 262 is cylindrical. The longitudinal direction of the pillar portion 262 is along the Y-axis direction. The pillar portion 262 protrudes from the connecting portion 261. The pillar portion 262 has a slit 2620 at the tip (the negative side of the Y-axis) opposite the connecting portion 261 side. The slit 2620 is a recess that is recessed from the tip of the pillar portion 262 toward the connecting portion 261 side.

[0156] The two protrusions 263 protrude from the tip of the column portion 262 on the side opposite the connecting portion 261 in a direction intersecting the longitudinal direction of the column portion 262. The protrusion direction (leftward) of one of the two protrusions 263 is opposite to the protrusion direction (rightward) of the other protrusion 263. A slit 2620 is formed between the two protrusions 263.

[0157] The width of the tip of the second insertion portion 26, where the two protrusions 263 are provided, is greater than that of the column portion 262. By sandwiching the two protrusions 263 from both sides, the second insertion portion 26 is elastically deformed so as to narrow the width of the slit 2620, and the width of the tip of the second insertion portion 26 becomes smaller. By inserting the tip of the second insertion portion 26 into the attachment hole 2511 in this state, the cover 22 is attached to the connecting housing 25 via the second insertion portion 26.

[0158] In this first modification, it is possible to remove and replace a configuration consisting of the second insertion portion 26, the cover 22, and the contact portion 21 by removing the second insertion portion 26 from the mounting hole 2511 of the connecting housing 25. It is also possible to remove and replace the current collector 2 by removing the insertion portion 23 from the mounting hole 671 of the arm 6.

[0159] (Other Modifications of the Embodiments) Other variations of the embodiment are listed below.

[0160] In the configuration in which the recess and protrusion are fitted together in the basic example, the recess and protrusion may be interchanged. For example, in the basic example, the first guide portion 47 is a groove portion (recess) and the second guide portion 68 is a protrusion inserted into the groove, but on the other hand, the second guide portion 68 may be a groove portion (recess) and the first guide portion 47 may be a protrusion inserted into the groove. Also, for example, in the basic example, the cylindrical portion 45 (protrusion) of the base 4 is inserted into the recess 512 of the holder 5, but on the other hand, the protrusion of the holder 5 may be inserted into the recess of the base 4.

[0161] In the basic example, the second hook portion 42 is configured so that its engagement with the base 7 is released by an operation of pressing the second hook portion 42. In contrast to this, in one modified example, at least one of the first hook portion 41 and the second hook portion 42 may be configured so that its engagement with the base 7 is released by an operation of pressing at least one of the first hook portion 41 and the second hook portion 42. Thus, for example, the first hook portion 41 may be configured to have a spring property.

[0162] In the basic example, the second hook portion 42 is pushed and elastically deformed, and the hooking between the second hook portion 42 and the base 7 is released. In contrast to this, in one modified example, at least one of the first hook portion 41 and the second hook portion 42 may be configured to be pushed and elastically deformed, and the hooking between the first hook portion 41 and the base 7 is released. Therefore, for example, the first hook portion 41 may be pushed and elastically deformed through a fifth through hole 7101 provided in an area of ​​the base 7 facing the first hook portion 41, and the hooking between the first hook portion 41 and the base 7 may be released. Therefore, the base 7 may have a through hole in an area facing at least one of the first hook portion 41 and the second hook portion 42.

[0163] The current collector 1 of the basic example includes two current collectors 2, two connector parts 3, two fixing parts F1, two compression springs S1, two arms 6, a base 7, and two cables 8. However, the number of each of these components can be changed as appropriate.

[0164] The arm 6 in the basic example has two second ribs 62. However, the number of the second ribs 62 may be one or three or more.

[0165] The multiple members described as separate members in the basic example may be one member as appropriate. For example, the holder 5 and the base 4 may be configured as one member.

[0166] A plurality of components described as one member in the basic example may be manufactured as separate members and then joined together as appropriate. For example, the wall portion 65 and the first rib 61 may be manufactured as separate members and then joined together.

[0167] The first rib 61 does not have to protrude from the wall portion 65, but may protrude, for example, from a columnar member protruding from the first surface 64a.

[0168] The first hook portion 41 and the second hook portion 42 may be formed on the same surface. For example, the first hook portion 41 and the second hook portion 42 may be formed on the bottom portion 431 of the base 4.

[0169] The current collector 1 may include a tension spring instead of the compression spring S1. The tension spring applies a force to the arm 6 in a direction that displaces the second mounting portion 67 of the arm 6 in the positive direction of the Y axis. This ensures contact pressure between the current collector 2 and the trolley wire T1.

[0170] (summary) The above-described embodiments and the like disclose the following aspects.

[0171] The current collector (1;1A) according to the first embodiment transmits power from a contact wire (T1) to a mobile device (9). The current collector (1;1A) includes an arm (6) that supports a current collector (2). The current collector (2) contacts the contact wire (T1). The arm (6) has a first surface (64a), a first rib (61), and a through hole (641). The first surface (64a) contacts a cable (8) for electrically connecting the current collector (2) to the mobile device (9). The first rib (61) holds the cable (8) by sandwiching it between the first surface (64a) and the first rib (61). The through hole (641) passes the cable (8).

[0172] According to the above configuration, it is possible to suppress displacement of the cable (8) by sandwiching the cable (8) between the first rib (61) and the first surface (64a) and passing the cable (8) through the through hole (641). This makes it possible to suppress the cable (8) from becoming loose or being pulled.

[0173] In the current collector (1; 1A) according to the second embodiment, the cable (8) is press-fitted between the first surface (64a) and the first rib (61) in the first embodiment.

[0174] According to the above configuration, the positional deviation of the cable (8) can be further suppressed.

[0175] In the current collecting device (1; 1A) according to the third aspect, in the first or second aspect, the arm (6) further includes a wall portion (65) protruding from the first surface (64a) along a normal direction of the first surface (64a). The first rib (61) protrudes from the wall portion (65).

[0176] According to the above configuration, the cable (8) can be held on the surface of the wall portion (65).

[0177] In addition, in the current collecting device (1;1A) according to the fourth embodiment, in the third embodiment, the longitudinal direction of the wall portion (65) is aligned with the extension direction of the cable (8) between the first surface (64a) and the first rib (61).

[0178] According to the above configuration, the cable (8) can be arranged along the longitudinal direction of the wall portion (65).

[0179] In the current collecting device (1; 1A) according to the fifth aspect, in the third or fourth aspect, the arm (6) further includes a second rib (62) protruding from the first surface (64a) along a normal direction of the first surface (64a). The second rib (62) faces the wall portion (65). The cable (8) is inserted between the wall portion (65) and the second rib (62).

[0180] According to the above-described configuration, it is possible to prevent the cable (8) from being displaced in the direction opposite to the wall portion (65) (the negative direction of the Z axis).

[0181] In addition, in the current collecting device (1; 1A) according to the sixth aspect, in the fifth aspect, the arm (6) has two second ribs (62). The first rib (61) is provided at a position visible through a gap between the two second ribs (62).

[0182] According to the above configuration, by passing a portion of the cable (8) through the gap between the two second ribs (62), the cable (8) can be easily inserted between the first rib (61) and the first surface (64a).

[0183] In addition, in the current collecting device (1;1A) according to the seventh aspect, in the sixth aspect, the distance (L1) between the two second ribs (62) at the height position of the first rib (61) is longer than the shortest distance (L2) between the wall portion (65) and the two second ribs (62).

[0184] According to the above configuration, it is easy to pass a portion of the cable (8) through the gap between the two second ribs (62).

[0185] In addition, in the current collector (1;1A) according to an eighth aspect, in any one of the first to seventh aspects, the arm (6) further has a third rib (63) facing the first surface (64a). The cable (8) is inserted between the first surface (64a) and the third rib (63).

[0186] According to the above-described configuration, it is possible to prevent the cable (8) from being displaced in a direction away from the first surface (64a).

[0187] The current collector (1;1A) according to a ninth aspect is any one of the first to eighth aspects, and further includes a fixed portion (F1) and a compression spring (S1). The fixed portion (F1) has a coupling portion (52) to which the arm (6) is attached. The arm (6) further has a first attachment portion (66) attached to the fixed portion (F1), a second attachment portion (67) to which the current collector (2) is attached, and a second surface (64b) that is the surface opposite to the first surface (64a). The arm (6) is rotatable about the first attachment portion (66). The compression spring (S1) is sandwiched between the fixed portion (F1) and a region of the second surface (64b) between the first attachment portion (66) and the second attachment portion (67).

[0188] According to the above-mentioned configuration, the spring force of the compression spring (S1) can ensure contact pressure between the current collector (2) and the trolley wire (T1). In addition, the current collector (1; 1A) can be easily made smaller than when a tension spring is used instead of the compression spring (S1).

[0189] In addition, in the current collecting device (1;1A) according to the tenth aspect, in the ninth aspect, the fixing portion (F1) and the arm (6) further include a first guide portion (47) and a second guide portion (68), respectively. The first guide portion (47) and the second guide portion (68) prevent the orientation of the arm (6) from deviating from a predetermined orientation. One of the first guide portion (47) and the second guide portion (68) is a groove portion, and the other is a protrusion that is inserted into the groove portion.

[0190] According to the above configuration, deviation of the orientation of the arm (6) can be suppressed.

[0191] In addition, in the current collecting device (1; 1A) according to the eleventh aspect, when the compression spring (S1) presses the arm (6) in the tenth aspect, the second guide portion (68) moves toward the first guide portion (47). The groove portion is narrower in width as it goes deeper.

[0192] According to the above-mentioned configuration, the spring force of the compression spring (S1) can be used to correct any deviation in the orientation of the arm (6).

[0193] The current collector (1;1A) according to a twelfth aspect is any one of the first to eleventh aspects and further includes a fixed portion (F1). The arm (6) further includes a first mounting portion (66) attached to the fixed portion (F1) and a second mounting portion (67) to which the current collector (2) is attached. The arm (6) is rotatable about the first mounting portion (66). A distance (L3) between the first mounting portion (66) and the first rib (61) is shorter than a distance (L4) between the first mounting portion (66) and the second mounting portion (67).

[0194] According to the above configuration, since the distance (L3) between the first rib (61) and the first attachment portion (66), which is the center of rotation, is relatively short, it is possible to reduce the displacement of the first rib (61) when clamping the cable (8) between the first rib (61) and the first surface (64a), making the work easier to perform.

[0195] In addition, in the current collector (1; 1A) according to the thirteenth aspect, in any one of the first to twelfth aspects, the through hole (641) through which the cable (8) passes is provided in the first surface (64a).

[0196] According to the above configuration, the cable (8) can be arranged in a region overlapping with the arm (6) when viewed from the direction facing the first surface (64a), thereby reducing the possibility that the cable (8) will come into contact with the surrounding structure of the current collector (1; 1A).

[0197] The configurations other than those of the first embodiment are not essential to the current collecting device (1; 1A) and may be omitted as appropriate.

[0198] The arm (6) according to the fourteenth aspect is used in the current collector (1; 1A) according to any one of the first to thirteenth aspects.

[0199] According to the above configuration, it is possible to prevent the cable (8) from shifting out of position. [Explanation of symbols]

[0200] 1;1A current collector 2 Electronic collector 6 Arm 8 Cable 9 Mobile equipment 47 First guide section 52 Joint 61 First Rib 62 Second Rib 63 The Third Rib 64a First Face 64b Second Face 65 Wall 66 First mounting part 67 Second mounting part 68 Second guide part 641 Through hole F1 fixed part L1 distance L2 Shortest distance S1 Compression Spring T1 Contact Line

Claims

1. A current collecting device that transmits power from a contact wire to a moving device, an arm supporting a current collector in contact with the contact wire; The arm is a first surface in contact with a cable for electrically connecting the current collector to the mobile device; a first rib that sandwiches the cable between the first surface and the first rib and holds the cable; and a through hole through which the cable passes. Current collector.

2. The cable is press-fit between the first surface and the first rib. The current collector according to claim 1 .

3. the arm further includes a wall portion protruding from the first surface along a normal direction of the first surface, The first rib protrudes from the wall portion. The current collector according to claim 1 .

4. A longitudinal direction of the wall portion is aligned with an extension direction of the cable between the first surface and the first rib. The current collector according to claim 3.

5. the arm further includes a second rib protruding from the first surface along the normal direction of the first surface, The second rib faces the wall portion, The cable is inserted between the wall and the second rib. The current collector according to claim 3.

6. The arm has two second ribs, The first rib is provided at a position visible through a gap between two of the second ribs. The current collector according to claim 5.

7. A distance between the two second ribs at a height position of the first rib is longer than a shortest distance between the wall portion and the two second ribs; The current collector according to claim 6.

8. the arm further includes a third rib facing the first surface; The cable is inserted between the first surface and the third rib. The current collector according to claim 1 .

9. a fixed portion having a coupling portion to which the arm is attached; a compression spring; the arm further includes a first mounting portion attached to the fixed portion, a second mounting portion to which the current collector is attached, and a second surface that is a surface opposite to the first surface, The arm is rotatable around the first attachment portion, The compression spring is sandwiched between a region of the second surface between the first mounting portion and the second mounting portion and the fixed portion. The current collector according to claim 1 .

10. the fixed portion and the arm further include a first guide portion and a second guide portion that regulate the orientation of the arm from deviating from a predetermined orientation, One of the first guide portion and the second guide portion is a groove portion, and the other is a protrusion portion to be inserted into the groove portion. The current collector according to claim 9.

11. When the compression spring pushes the arm, the second guide portion moves toward the first guide portion, The groove portion has a narrower width toward the back. The current collector of claim 10.

12. Further comprising a fixing portion, The arm further includes a first mounting portion attached to the fixed portion and a second mounting portion to which the current collector is attached, The arm is rotatable about a first attachment portion, A distance between the first mounting portion and the first rib is shorter than a distance between the first mounting portion and the second mounting portion. The current collector according to claim 1 .

13. The through hole through which the cable passes is provided on the first surface. The current collector according to claim 1 .

14. Used in the current collector according to any one of claims 1 to 13, arm.

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