TWI635001B - Power supply path and power supply system having the same - Google Patents

Abstract

The invention provides a power supply path and a power supply system having the same, which can not only reduce the width size of the power supply path itself but also the width size of the holding member. The power supply path (1) includes: a lead member (11); a covering member (12); and a held portion (13). The lead member (11) is composed of at least one core wire (111, 112) having conductivity and extending in the left-right direction. The covering member (12) has electrical insulation, and has a first surface (121) and a second surface (122) on both sides in the front-rear direction, and a lead wire is contained in the open portion (123) formed on the first surface (121). Building block (11). The held portion (13) protrudes from the second surface (122) of the covering member (12) in the front-back direction, and is held by the holding member (2) from both sides in the vertical direction. Both end surfaces in the vertical direction of the held portion (13) are located inside the end surfaces (outer top surface (126) and outer bottom surface (127)) in the vertical direction of the covering member (12) in the vertical direction.

Description

Power supply path and power supply system having the same

The present invention generally relates to a power supply path and a power supply system having the same. More specifically, the present invention relates to a power supply path to be mounted on an installation object by a holding member and a power supply system having the same.

Document 1 (JP2008-301577A) discloses a power collection device that transmits power to a mobile device such as a crane through a self-powered path. The current collecting device includes a current collecting arm and a fixing member. The current collecting arm includes a current collector and an arm. The arm is configured to hold the current collector at one end portion, and to the fixing member at the end portion opposite to the current collector. This current collecting device fixes a fixed member to a mobile device, thereby being mounted to the mobile device.

When the current collector is moved together with the mobile device, the current collector contacts the power supply path and moves. Thereby, the power is collected from the power supply path to the current collector, and the power of the power supply path is supplied to the mobile device via the current collector.

However, the power supply path (insulated sliding contact wire) described in Document 1 is fixed by suspending a holding member (hanger) from a building material such as a top plate, and is arranged along a moving path of a mobile device (load). In consideration of mounting such a power supply path on a long-shaped installation object such as a duct rail, it is desirable to reduce not only the width dimension of the power supply path itself but also the width dimension of the holding member holding the power supply path.

The present invention has been made in view of the above-mentioned circumstances, and an object thereof is to provide a power supply path and a power supply system having the same, which can reduce not only the width dimension of the power supply path itself but also the width dimension of the holding member.

According to one aspect of the present invention, a power supply path is mounted on an installation object by a holding member, which includes: a lead member; a covering member; and a held portion. The lead member is composed of at least one core wire having conductivity and extending in the first direction. The covering member has electrical insulation, has first and second faces on both sides of a second direction orthogonal to the first direction, and contains the lead member in an opening portion formed on the first face. The held portion protrudes from the second surface of the covering member along the second direction, and is held on both sides of the third direction orthogonal to both the first direction and the second direction. member. Both end surfaces in the third direction of the held portion are located inside the both end surfaces in the third direction of the covering member in the third direction.

A power supply system according to one aspect of the present invention includes: the power supply path described above; and the holding member having a pair of clamping pieces. The holding member is configured to hold the held portion by sandwiching the held portion with the pair of holding pieces from both sides in the third direction.

[Best Mode for Implementing the Invention] (1) Overview As shown in FIGS. 1 and 2, the power supply system 10 of this embodiment includes a power supply path 1, a holding member 2, and a tensioning device 3. In the examples of FIGS. 1 and 2, the power supply system 10 further includes a duct rail 4 as an installation target. However, the power supply system 10 may not include the installation target (the duct rail 4) as a component. The power supply system 10 may include at least the power supply path 1 and the holding member 2 as constituent elements, and the tensioning device 3 may not be included in the constituent elements.

The power supply system 10 is, for example, a so-called insulated trolley in a facility such as an automated warehouse or a factory, and is used to supply power to mobile equipment moving in the facility. An example of a mobile device is an electric trolley or the like that transports articles in a facility, and transports articles in and out of a rack. The mobile device operates by receiving power supply from the power supply system 10. Specifically, the power supply path 1 includes a lead member 11 composed of at least one core wire 111 and 112 electrically connected to a power source. The mobile device includes a current collector 5 (see FIG. 1) having a current collector. The current collecting device 5 is moved along the extending direction of the lead member 11 in a state where the current collector is in contact with the lead member 11. Thereby, the mobile device can receive power supply from the power supply path 1 using the power collecting device 5 and can move (walk) along the extending direction of the wire member 11. In FIG. 1, the outline shape of the power collection device 5 is shown by an imaginary line (two-point chain line).

In the present embodiment, a description will be given by taking a DC power supply system 10 for supplying power to a mobile device having a DC motor and operating to receive DC power supply. In order to supply the DC power to the current collector 5, the power supply system 10 uses a lead member 11 composed of a pair of (two) core wires 111 and 112 of a positive electrode and a negative electrode as the lead member 11 of the power supply path 1. Here, in the case of a mobile device, it is assumed to be a so-called light load device with relatively low power consumption, and it is assumed that the allowable current of the power supply path 1 is relatively small.

The power supply path 1 is attached to the object to be mounted by the holding member 2 (here, the duct rail 4). In this embodiment, as an example, it is assumed that power is supplied to a mobile device moving in a horizontal direction, and a power supply path 1 is installed in a duct rail 4 provided along the horizontal direction. In the following description, in a state in which the power supply path 1 is mounted on the duct rail 4, a direction perpendicular (orthogonal) to the horizontal plane is referred to as "up and down direction", and a downward direction (vertical direction) is referred to as "downward". In addition, the direction orthogonal to the up-down direction and the direction in which the power supply path 1 and the power collecting device 5 face each other will be referred to as the "front-rear direction", and the side of the power collecting device 5 viewed from the power supply path 1 will be described as "front". Furthermore, the longitudinal direction of the catheter track 4, that is, the moving direction of the mobile device is set to the “left and right direction”, the right side from the front view of the power supply path 1 is set to “right”, and the left side is set to “left” Side "to explain. The arrows showing the "up and down direction", "back and forth direction", and "left and right direction" in the drawings are for illustration only and have no substance. However, these directions are not intended to limit the use direction (installation direction) of the power supply path 1.

However, the power supply path 1 has two types: a tension type and a connection type (non-tension type). The pull-type power supply path 1 is used in a state where a pull force acts on the lead member 11 from both sides in the extension direction (left-right direction) of the lead member 11. The tensile force applied to the lead member 11 is generated by the tensioning device 3. The tensioning device 3 may be provided on one side of the extension direction of the lead member 11 with respect to the power supply path 1, or may be provided on both sides of the extension direction of the lead member 11.

In the case of a tension-type power supply path 1, it is used by cutting a necessary length from a sufficiently long power supply path 1. Therefore, in the pull-type power supply path 1, the power supply path 1 of a sufficient length (for example, 50 [m]) is rolled into a ring shape with a radius of several tens [cm] (hereinafter also referred to as a "stacked state"). ) Moved to the construction site (facility). On the other hand, the connected power supply path 1 is used in a state where a plurality of power supply paths 1 are connected in the extension direction (first direction) of the lead member 11 without pulling on the lead member 11. In the case of a connected power supply path 1, when a power supply path 1 is installed in a facility, a necessary number of power supply paths 1 of a predetermined length (for example, 3 [m]) are connected and used. Therefore, in the connected power supply path 1, a plurality of power supply paths 1 are carried into the construction site (facility) in an overlapping state (hereinafter also referred to as a "stacked state").

Comparing the tension type with the connection type, the tension type power supply path 1 has the following advantages: a relatively long power supply path can be realized without joints; and because it is not necessary to connect a large number of power supply paths 1 during construction, construction time can be saved. Furthermore, regarding the installation interval of the holding member 2 holding the power supply path 1, the power supply path 1 that is also a tension type can be wider than the power supply path 1 that is a connected type. In other words, since the tension-type power supply path 1 is provided in a state where the deflection of the power-supply path 1 is suppressed by tension, the connection type power-supply path 1 can be realized even if the holding member 2 is arranged at a wide interval. Same flex resistance. For example, when the installation interval of the connection-type holding members 2 is 50 [cm], the installation interval of the tension-type holding members 2 may be wide to about 2 [m]. Therefore, the tension-type power supply path 1 can reduce the construction effort for installing the holding member 2. On the other hand, if the connection type power supply path 1 is used, it is not necessary to apply tension to the wire member 11, and therefore it is not necessary to tighten the device 3.

In this embodiment, a case where the power supply path 1 is a tension type will be described as an example.

(2) Details Details of each part of the power supply system 10 according to this embodiment will be described below.

(2.1) Installation target In this embodiment, as shown in Figs. 1 and 2, the installation target is constituted by a long duct rail 4 extending in the left-right direction. The duct rail 4 is made of metal, for example. The duct rail 4 is bridged between, for example, a pair of pillars provided at a certain interval in the left-right direction.

The catheter track 4 includes: a rear wall 41 arranged along a plane orthogonal to the front-rear direction; an upper wall 42 protruding forward from an upper end edge of the rear wall 41; a lower wall 43 protruding forward from a lower end edge of the rear wall 41 And the front wall 44 protrudes downward from the front edge of the upper wall 42. Here, the rear wall 41, the upper wall 42, the lower wall 43, and the front wall 44 are integrally formed. In other words, the rear wall 41, the upper wall 42, the lower wall 43, and the front wall 44 are made of a single metal plate. Furthermore, the duct rail 4 has an opening 45 between the lower end edge of the front wall 44 and the front end edge of the lower wall 43. The opening 45 is formed over the entire length of the catheter rail 4 in the left-right direction. A rear wall 41 of the catheter track 4 is formed with a screw hole 411 for holding the member 2.

In such a duct rail 4, the power supply path 1 is mounted on the front side of the rear wall 41 by the holding member 2. In a state where the power supply path 1 is installed on the duct rail 4, as shown in FIG. 1, the power supply path 1 is accommodated in a space surrounded by the rear wall 41, the upper wall 42, the lower wall 43, and the front wall 44, and the power supply path 1 passes through. It is exposed forward through the opening 45. By using the duct rail 4, even if there is no structure such as a wall or a ceiling, the holding members 2 can be provided at a desired interval, so that the installation of the power supply path 1 becomes possible. The duct rail 4 also has a function of protecting the power supply path 1 by surrounding the power supply path 1.

(2.2) Power supply path As shown in FIGS. 3A, 3B, and 4, the power supply path 1 includes: a lead member 11; and a covering member 12.

The lead member 11 is composed of at least one core wire 111 and 112. In this embodiment, in order to supply the DC power to the power supply path 1 as described above, the lead member 11 is configured by using a pair of (two) core wires 111 and 112 of a positive electrode and a negative electrode.

Each of the core wires 111 and 112 is an elongated member having conductivity and extending in the first direction. In other words, the extension direction of each of the core wires 111 and 112 is defined as a "first direction". In this embodiment, for example, each of the core wires 111 and 112 is a flat wire made of a metal such as copper or a copper alloy and having a rectangular cross-sectional shape in a direction orthogonal to the extension direction (first direction). Hereinafter, among the directions orthogonal to the first direction, the short-side direction of the cross section of each core wire 111 and 112 is referred to as a "second direction", and the longitudinal direction of the cross section of each core wire 111 and 112 is referred to as a "third direction". . In other words, the second direction is the thickness direction of each core wire 111, 112, and the third direction is the width direction of each core wire 111, 112. In this embodiment, the left-right direction is the "first direction", the front-rear direction is the "second direction", and the up-down direction is the "third direction".

The covering member 12 has an electrical insulation property and is an elongated member that covers the lead member 11. In other words, the covering member 12 is an elongated member that extends in the first direction (left-right direction) similarly to the lead member 11. In this embodiment, as an example, the covering member 12 is made of synthetic resin such as rigid vinyl chloride. The covering member 12 has a first surface 121 (front surface) and a second surface 122 (rear surface) on both sides of the front-rear direction orthogonal to the left-right direction. The first surface 121 of the covering member 12 is formed along the left-right direction with an open portion 123 that opens forward, and the lead member 11 is housed in the open portion 123. Here, the open portion 123 is formed over the entire length of the covering member 12 in the left-right direction. Thereby, the lead member 11 passes through the opening of the opening portion 123 and is exposed forward. In other words, the covering member 12 covers the lead member 11 so that the lead member 11 is exposed through the opening of the opening portion 123.

In this embodiment, since the lead member 11 is composed of a pair of core wires 111 and 112, the covering member 12 is also formed with a pair of open portions 123 so as to correspond to the pair of core wires 111 and 112. The pair of open portions 123 are formed by being arranged at predetermined intervals in the up-down direction orthogonal to both the left-right direction and the front-back direction. That is, a pair of core wires 111 and 112 accommodated in a pair of opening part 123 are arrange | positioned in the up-down direction. Thereby, the current collecting device 5 is brought into contact with the power supply path 1 from the front, so that the current collector of the current collecting device 5 can contact the lead member 11 in the open portion 123, and the self power supply path 1 (the lead member 11) can be directed toward Power supply from the power collection device 5 becomes possible.

To explain in more detail, the covering member 12 has side walls 124 protruding forward from the first surface 121 on both sides in the vertical direction of each of the open portions 123. The first surface 121 is formed in such a manner that a pair of (two pieces) side walls 124 facing each other in the up-and-down direction are grouped into one group, and two groups (a total of four pieces) of side walls 124 are aligned in the up-down direction. The side wall 124 is formed over the entire length of the covering member 12 in the left-right direction. Thereby, an open portion 123 is formed between a pair of side walls 124 of each group. The width dimension (the vertical dimension) of each open portion 123 is connected to the rear end portion of each open portion 123, that is, the bottom portion is enlarged. The width dimension of the rear end portion of each of the open portions 123 is substantially the same as the width dimension of each of the core wires 111 and 112. An interval between the pair of side walls 124 is set to be smaller than a width dimension of each of the core wires 111 and 112. A pair of core wires 111 and 112 are accommodated in the rear-end part of a pair of opening part 123. Thereby, the core wires 111 and 112 are exposed between the pair of side walls 124, and the current collector of the power collecting device 5 passes between the pair of side walls 124 and contacts the lead member 11. Furthermore, in the present embodiment, the surface on the side of the open portion 123 in each of the side walls 124 is formed in a push shape so that the interval between the pair of side walls 124 is widened to the degree of the opening side (front) of the open portion 123.

In addition, the covering member 12 includes a pair of peripheral ribs 125 protruding rearward from both ends in the vertical direction of the second surface 122. The peripheral ribs 125 are formed over the entire length of the covering member 12 in the left-right direction. The protruding dimension of the peripheral rib 125 is considerably smaller than the protruding dimension of the side wall 124. The pair of peripheral ribs 125 has a function of preventing the winding deviation of the power supply path 1 in the "stacked state" as described above. That is, if the power supply path 1 is in a “stacked state”, as shown in FIG. 5, the side wall 124 of the power supply path 1 on the inner side (rear) in the overlapping direction is located between a pair of peripheral ribs 125 so that The positional deviation (winding deviation) of the stacked power supply path 1 in the up-down direction is unlikely to occur. In the case of the connected power supply path 1, the pair of peripheral ribs 125 has a function of preventing positional deviations of the plurality of power supply paths 1 in the "stacked state" in the up-down direction.

However, as shown in FIG. 3A, FIG. 3B, and FIG. 4, the power supply path 1 of this embodiment further includes: a held portion 13, and an opening portion 123 in the front-back direction from the covering member 12 as a surface on the opposite side. (Meaning second surface 122) protrudes in the second direction. That is, the held portion 13 projects rearward from the second surface 122 of the covering member 12. The power supply path 1 is held by the holding member 2 by the holding member 2, and is attached to the object to be mounted (the duct rail 4) by the holding member 2.

The held portion 13 is fixed to the holding member 2 from both sides in the vertical direction orthogonal to both the left-right direction and the front-rear direction. Here, the held portion 13 is held by the pair of holding pieces 21 and 22 of the holding member 2 from both sides in the vertical direction, and is held by the holding member 2. The held portion 13 is formed over the entire length of the covering member 12 in the left-right direction. Thereby, the holding member 2 can hold the power supply path 1 at any position in the left-right direction of the covering member 12. The details of the holding member 2 are described in the field of "(2.3) Holding member".

The held portion 13 includes a pair of protruding pieces 131 and 132 facing each other with a gap therebetween in the vertical direction. Among the pair of projecting pieces 131 and 132, the upper projecting piece 131 has a first piece 131a protruding from the second surface 122 toward the rear, and a second piece 131b facing from the end (rear end) of the first piece 131a. Protrude from above. Similarly, among the pair of protruding pieces 131 and 132, the lower protruding piece 132 has a first piece 132a protruding rearward from the second surface 122, and a second piece 132b protruding from the end (rear end of the first piece 132a) Part) protruding downward. The second pieces 131b and 132b protrude toward each other away from the end portions of the first pieces 131a and 132a. Here, the outer corners between the first pieces 131a and 132a and the second pieces 131b and 132b are bent with a predetermined curvature radius. The pair of protruding pieces 131 and 132 are held by the pair of holding pieces 21 and 22 from both sides in the vertical direction, and the held portion 13 is held on the holding member 2. In this state, the hooks 21b and 22b (see FIG. 3A) of the holding pieces 21 and 22 are hooked to the second pieces 131b and 132b, so that the held portion 13 is restricted from facing forward with respect to the holding member 2. Move to prevent the power supply path 1 from falling off from the holding member 2.

Here, both end surfaces of the held portion 13 in the vertical direction (the end surfaces of the second pieces 131b and 132b) are located in the vertical direction on both end surfaces of the covering member 12 (the outer top surface 126 and the outer bottom surface). 127) the inside. In other words, the end surface (outer top surface) of the second piece 131 b of the upper side projection piece 131 among the pair of projection pieces 131 and 132 is located below the outer top surface 126 of the covering member 12. The end surface (outer bottom surface) of the second piece 132 b of the lower side projection piece 132 among the pair of projection pieces 131 and 132 is located above the outer bottom surface 127 of the covering member 12. In this embodiment, as shown in FIG. 3A, both end surfaces of the held portion 13 in the vertical direction (the end surfaces of the second pieces 131b, 132b) are located on both end surfaces of the covering member 12 in the vertical direction in the vertical direction. (The outer top surface 126 and the outer bottom surface 127) are retracted to the inside by a predetermined size L1. In other words, the vertical dimension of the held portion 13 is smaller than the vertical dimension of the covering member 12 by a “2 × L1” portion.

In this embodiment, the held portion 13 and the covering member 12 are integrally formed of the same material. Therefore, the held portion 13 also functions as a reinforcing rib that increases the rigidity of the covering member 12. However, the end portions (rear end portions) of the pair of protruding pieces 131 and 132 in the held portion 13 are separated from each other so as to face each other with a predetermined gap therebetween. Therefore, the rigidity of the to-be-held part 13 itself is reduced compared with the structure where the terminal parts of a pair of projection pieces 131 and 132 are mutually connected. Therefore, the held portion 13 can give the covering member 12 moderate rigidity, and the entire power supply path 1 may be deformed as described above in the "stacked state" even if a certain degree of flexure resistance is achieved.

In addition, the tip portions (rear ends) of the pair of protruding pieces 131 and 132 in the held portion 13 are separated with a gap therebetween, as long as the power supply path 1 is in a "stacked state", as shown in FIG. 5, The pair of protruding pieces 131 and 132 are accommodated in the pair of open portions 123. Therefore, in the “stacked state”, the overlapping direction (radial) dimension of the power supply path 1 can be reduced. Similarly, the size of the overlapping direction (front-rear direction) of the plurality of power supply paths 1 in the "stacked state" as described above can be reduced if the power supply paths 1 are connected.

In addition, the covering member 12 includes a support surface 128 in at least a part between the pair of protruding pieces 131 and 132 of the second surface 122 and abuts on a part of the holding member 2 in the front-rear direction. In the present embodiment, in a state where the power supply path 1 is held by the holding member 2, the support table 23 (see FIG. 3B) in the holding member 2 is in contact with the support surface 128. That is, a portion between the pair of protruding pieces 131 and 132 in the second surface 122 of the covering member 12 and facing the support table 23 in the front-rear direction functions as the support surface 128. Therefore, in a state where the power supply path 1 is held by the holding member 2, the support table 23 supports the support surface 128 of the covering member 12 from the rear, so that the power supply path 1 is prevented from being bent backward.

In addition, the support surface 128 is formed with a guide groove 129 extending in the left-right direction. In other words, the size of the guide groove 129 in the vertical direction is set smaller than the size of the support table 23 in the vertical direction. Therefore, it becomes as follows: The support surfaces 128 for the contact of the support table 23 are located on both sides in the vertical direction of the guide groove 129. The guide groove 129 inserts a guide protrusion 24 (see FIG. 3B) protruding from the end surface (front end surface) of the support table 23 of the holding member 2 to form a relative positioning of the holding member 2 and the power supply path 1 in the vertical direction. . That is, when an external force in the vertical direction acts on the power supply path 1, the guide protrusion 24 contacts the inner side surface of the guide groove 129, thereby restricting the movement of the power supply path 1 relative to the holding member 2 in the vertical direction. Therefore, deflection of the power supply path 1 in the vertical direction is suppressed. In addition, when a tensile force in the left-right direction acts on the power supply path 1 during construction of the power supply path 1 or the like, the guide protrusion 24 moves in the guide groove 129 along the extension direction (left and right direction) of the guide groove 129. Therefore, movement of the power supply path 1 with respect to the holding member 2 is permitted in the left-right direction, and movement of the power supply path 1 with respect to the holding member 2 is restricted in the vertical direction. Here, the support surface 128 and the guide groove 129 are formed over the entire length of the covering member 12 in the left-right direction.

(2.3) Holding member The holding member 2 includes: a base portion 25; a pair of holding pieces 21 and 22; a support table 23; a guide protrusion 24; a pair of mounting pieces 26; and a pair of hooking portions 27, as shown in FIG. 28. The holding member 2 is a member for attaching the power supply path 1 to an installation object (conduit rail 4). The holding member 2 has electrical insulation properties. Here, the holding member 2 is made of synthetic resin, and the base portion 25, a pair of holding pieces 21, 22, a supporting table 23, a guide protrusion 24, a pair of mounting pieces 26, and a pair of hooking portions 27, 28 are formed. One.

The base portion 25 is formed in a plate shape having a substantially square shape in front view. A pair of mounting pieces 26 protrude from both ends in the left-right direction of the base portion 25 to both sides in the left-right direction. Each mounting piece 26 is formed with a long hole 261 and penetrates each mounting piece 26 in the front-rear direction. The holding member 2 is fastened to the threaded hole 411 of the catheter track 4 by passing mounting screws through this long hole 261, and is fixed to the rear wall 41 of the catheter track 4.

The pair of holding pieces 21 and 22 protrude forward from both ends in the up-down direction among the front faces of the base portion 25. The upper clamping piece 21 of the pair of clamping pieces 21 and 22 includes: a main piece 21a protruding forward from the front side of the base portion 25; and a hook 21b, the end portion (front end portion) of the autonomous piece 21a protruding downward. . Similarly, the lower clamping piece 22 of the pair of clamping pieces 21 and 22 includes: a main piece 22a protruding forward from the front side of the base portion 25; and a hook 22b, an end portion (front end portion) of the autonomous piece 22a. ) Protruding upwards. The end surfaces of the hooks 21b and 22b are formed in a push-out shape so that the interval between the pair of hooks 21b and 22b becomes wider in the front direction. Here, the protruding size of the pair of holding pieces 21 and 22 from the base portion 25 is at least larger than the protruding size of the pair of protruding pieces 131 and 132 from the covering member 12.

In addition, the vertical dimension (thickness dimension) of the main sheets 21a, 22a among the clamp pieces 21, 22 is set to be smaller than the predetermined size L1. In particular, in the present embodiment, the size of each part is set such that the upper and lower end surfaces of the pair of holding pieces 21 and 22 are located in the upper and lower directions, and the upper and lower end surfaces (outer top surfaces) of the covering member 12 are located in the upper and lower directions. 126 and outer bottom surface 127) inside. Therefore, the pair of holding pieces 21 and 22 do not protrude from the covering member 12 in the front view and are hidden by the covering member 12. Therefore, the size of the holding member 2 in the vertical direction can be reduced compared to the configuration in which the pair of holding pieces 21 and 22 sandwich the covering member 12 itself instead of the held portion 13 from both sides in the vertical direction ( Width dimension).

The support stand 23 protrudes forward from the center portion in the up-down direction among the front faces of the base portion 25. That is, the support stand 23 is disposed between the pair of protruding pieces 131 and 132. The protruding size of the support table 23 from the base portion 25 is slightly larger than the protruding size of the pair of clamping pieces 21 and 22 from the base portion 25. The guide protrusion 24 protrudes from a distal end surface (front end surface) of the support table 23. The guide protrusion 24 is inserted into the guide groove 129 of the covering member 12 as described above, so that the relative positioning of the holding member 2 and the power supply path 1 in the vertical direction is performed.

The pair of hooking portions 27 and 28 protrude from the pair of holding pieces 21 and 22 in the up-down direction to the side opposite to the held portion 13. At least a part of the pair of hooking portions 27 and 28 is located on the outer side of both end surfaces (the outer top surface 126 and the outer bottom surface 127) of the covering member 12 in the up-down direction in the up-down direction. In this embodiment, the upper hook portion 27 of the pair of hook portions 27 and 28 includes a first protrusion 27a protruding upward from the outer top surface of the holding piece 21, and a second protrusion 27b from the first The tip (upper end) of the 1 protrusion 27a protrudes forward. Similarly, the lower hooking portion 28 of the pair of hooking portions 27 and 28 includes a first projection 28a protruding downward from the outer bottom surface of the holding piece 22, and a second projection 28b protruding from the first projection 28a. The lower end portion (lower end portion) protrudes forward.

Here, the outer bottom surface of the second protrusion 27 b of the upper hook portion 27 of the pair of hook portions 27 and 28 is located above the outer top surface 126 of the covering member 12. The outer top surface of the second protrusion 28 b of the lower hook portion 28 of the pair of hook portions 27 and 28 is located below the outer bottom surface 127 of the covering member 12. In this embodiment, as shown in FIG. 3B, the up-and-down facing surfaces of the pair of second protrusions 27b and 28b are both up-and-down ends of the self-covering member 12 (outer top surface 126 and outer surface). The bottom surface 127) protrudes to the outside by a position of a predetermined size L2. Thereby, between the outer top surface 126 of the covering member 12 and the second protrusion 27 b of the hooking portion 27, and between the outer bottom surface 127 of the covering member 12 and the second protrusion 28 b of the hooking portion 28 in the vertical direction. There is a gap of "L2".

3A and 3B, the procedure of attaching and detaching the power supply path 1 to and from the holding member 2 configured as described above will be described.

First, when the power supply path 1 is attached to the holding member 2, an operator pushes the power supply path 1 from the front of the holding member 2. Thereby, in the holding member 2, a pair of clamping pieces 21, 22 are flexed in a direction separated from each other, and the hooks 21b, 22b straddle the second pieces 131b, 132b, as shown in FIG. 3B. The clamp pieces 21 and 22 are in the state which clamped the to-be-held part 13. In this state, the end surfaces (front end surfaces) of the pair of holding pieces 21 and 22 do not contact the second surface 122 of the covering member 12, and the end surfaces (front end surfaces) of the support table 23 contact the covering member 12. Second surface 122 (supporting surface 128). At this time, since the holding member 2 makes the support table 23 contact the covering member 12 from the rear and the hooks 21b and 22b contact the second pieces 131b and 132b from the front, the power supply path 1 faces forward and backward with respect to the holding member 2. The movement in the direction is restricted, and the power supply path 1 is held on the holding member 2.

On the other hand, when the power supply path 1 is removed from the holding member 2, the operator releases the hooks 21 b and 22 b from the second piece 131 b and 132 b and pulls the power supply path 1 forward. At this time, since the pair of holding pieces 21 and 22 are hidden in the covering member 12 in front view, the operator uses the pair of hooking portions 27 and 28 to flex the pair of holding pieces 21 and 22 to thereby The hooks 21b and 22b are released from hooking to the second piece 131b and 132b. Specifically, the operator inserts a jig such as a screwdriver into the gap between the outer top surface 126 of the covering member 12 and the second protrusion 27b of the hooking portion 27, and moves the hooking portion 27 upward using the principle of leverage. . Thereby, the clamping piece 21 is bent upward together with the hooking portion 27, and the hooking of the hook 21b to the second piece 131b is released. Similarly, when the hooking portion 28 is used, the clamping piece 22 and the hooking portion 28 are bent downward together, and the hooking of the hook 22b to the second piece 132b is released.

Although only one holding member 2 is shown in FIGS. 1 and 2 and the like, a plurality of holding members 2 are actually provided at a desired interval (for example, 2 [m] intervals). The power supply path 1 is held by the majority of the holding members 2 and is mounted to the catheter rail 4 by the holding members 2. That is, the power supply path 1 is installed in a state of the wall 41 after leaving the duct rail 4 by being erected between the plurality of holding members 2. In this state, the deflection in the front-rear direction of the power supply path 1 is suppressed by the rigidity of the power supply path 1 itself and the pulling force acting on the power supply path 1.

(2.4) Tensioning device As shown in FIGS. 6 and 7, the tensioning device 3 includes: a main body 31; a cover body 32; a pair of first terminals 33 and 34; a pair of second terminals 35 and 36; and a tension generating portion 37. The tensioning device 3 is a device that applies a pulling force in the left-right direction to the lead member 11 of the power supply path 1. That is, the tensioning device 3 applies a force (tensile force) in a stretching direction to the lead member 11 from both sides in the extending direction (left-right direction) of the lead member 11.

The pair of first terminals 33 and 34 mechanically holds one end portion in the left-right direction of the pair of core wires 111 and 112 and is electrically connected to the pair of core wires 111 and 112. In this embodiment, each of the first terminals 33 and 34 is a screw-type terminal, and the core wires 111 and 112 are inserted into a metal plate formed into a square tube shape, and the fastening screws 331 and 341 are fastened. It is connected to the core wires 111 and 112. Here, two fastening screws 331 and 341 are used for each of the first terminals 33 and 34, and the pair of first terminals 33 and 34 firmly holds the pair of core wires 111 and 112. In addition, each of the fastening screws 331 and 341 is a screw with an overload protection function (torque limiter), and the head is broken when tightened with a torque of a predetermined torque or more.

The pair of second terminals 35 and 36 are electrically connected to the pair of first terminals 33 and 34. The pair of second terminals 35 and 36 are terminals for connecting the electric wire 38. The electric wire 38 referred to here is a two-wire type (two-core type) electric wire corresponding to a pair of second terminals 35 and 36. In this embodiment, each of the second terminals 35 and 36 is a screw-type terminal, and the terminal screws 351 and 361 are fastened to be mechanically and electrically connected to the electric wire 38. The electric wires 38 connected to the pair of second terminals 35 and 36 are connected to a power source. Thereby, the pair of core wires 111 and 112 are electrically connected to the power supply via the pair of first terminals 33 and 34, the pair of second terminals 35 and 36, and the electric wire 38. Here, the first terminal 33 and the second terminal 35 are integrally formed by a single metal plate. Similarly, the other first terminal 34 and the other second terminal 36 are integrally formed by a single metal plate.

Both the main body 31 and the cover body 32 are electrically insulating. Here, both the main body 31 and the lid body 32 are made of synthetic resin. The main body 31 has a front surface 311 (front surface) and a rear surface 312 (rear surface) on both sides of the front-rear direction orthogonal to the left-right direction. The cover body 32 is attached to the front surface 311 side of the main body 31, and the main body 31 and the cover body 32 are accommodated in the guide rail 4 in a state where the back surface 312 of the main body 31 contacts the front side of the rear wall 41 of the guide rail 4. The main body 31 functions as a hindrance for ensuring electrical insulation between the lead member 11 and the electric wire 38, and the guide rail 4 and the tension generating portion 37.

The front surface 311 of the main body 31 is formed with a receiving recess 313 to receive a pair of first terminals 33 and 34 and a pair of second terminals 35 and 36. The cover body 32 is attached to the main body 31 so as to cover the accommodation recess 313. That is, on the front surface 311 side (front) of the main body 31 in the front-rear direction, a receiving recess 313 is formed between the main body 31 and the cover 32 to receive a pair of first terminals 33 and 34 and a pair of second terminals. 35, 36 space.

In addition, the main body 31 further includes a partition wall 314 and divides the internal space of the receiving recess 313 into two halves in the vertical direction. Among the internal space of the receiving recess 313, the first terminal 33 and the second terminal 35 are accommodated in the space above the partition wall 314. Among the internal spaces of the receiving recess 313, the first terminal 34 and the second terminal 36 are accommodated in the space below the partition wall 314.

A pair of terminal holes 315 are formed on the right side of the receiving recess 313 and penetrate the body 31 in the left-right direction. The pair of terminal holes 315 are holes for passing a pair of core wires 111 and 112 as the lead member 11. A pair of terminal holes 315 are respectively opened above and below the partition wall 314. Thereby, a core wire 111 is introduced from a right side of the main body 31 through a terminal hole 315 to a space above the partition wall 314 in the internal space of the receiving recess 313. The other core wire 112 passes through another terminal hole 315 from the right side of the main body 31 and is introduced into the space below the partition wall 314 in the internal space of the receiving recess 313. In addition, one core wire 111 is connected to one first terminal 33 in the accommodation recess 313, and the other core wire 112 is connected to the other first terminal 34 in the accommodation recess 313.

Here, the pair of terminal holes 315 are formed in a size and shape that cannot be penetrated by the pair of first terminals 33 and 34. Therefore, the pair of first terminals 33 and 34 are held on the body 31 in a state of being accommodated in the receiving recess 313, and even if a rightward force is applied from the pair of core wires 111 and 112 to the pair of first terminals 33 and 34, one The first terminals 33 and 34 are also stopped in the receiving recess 313.

Furthermore, a groove 316 is formed on the front surface 311 of the main body 31 to allow the electric wires 38 connected to the pair of second terminals 35 and 36 to pass through. The groove 316 is connected to the receiving recess 313 and extends from the receiving recess 313 to the left.

The back surface 312 of the main body 31 is formed with a holding recessed portion 317 and a fixing portion 372 accommodating the tensile force generating portion 37. The fixing portion 372 will be described in detail later. In the present embodiment, the fixing portion 372 includes a first nut 372a. That is, a space for accommodating the fixing portion 372 including the first nut 372a is formed on the back surface 312 side (rear) of the main body 31 in the front-rear direction by holding the recessed portion 317.

A through hole 318 is formed on the left side of the holding recess 317 and penetrates the body 31 in the left-right direction. The through-hole 318 is a hole for penetrating the main shaft 371 of the tensile force generating portion 37. The main shaft 371 will be described in detail later. In this embodiment, the main shaft 371 is a full-screw (headless bolt). Thereby, the main shaft 371 passes through the through-hole 318 from the left side of the main body 31 and is inserted into the holding recess 317. The right end portion of the main shaft 371 is coupled to the fixing portion 372 (the first nut 372 a) in the holding recessed portion 317.

Here, the through hole 318 is formed in a size and shape that the fixing portion 372 cannot penetrate. Therefore, the fixing portion 372 is fixed to the main body 31 in a state of being accommodated in the holding recessed portion 317, and even if the main shaft 371 applies a leftward force to the fixing portion 372, the fixing portion 372 stops in the holding recessed portion 317.

The cover 32 includes a main plate 321 covering the receiving recess 313 and a hooking piece 322 protruding from the right end edge of the main plate 321. In a state where the hook piece 322 is hooked on the hook frame 319 provided on the right end portion of the front surface 311 of the main body 31, the left end portion of the main board 321 is fixed to the left side using a pair of mounting screws 391 and a pair of mounting nuts 392.体 31。 The body 31. Thereby, the cover body 32 is attached to the main body 31. A left end portion of the main board 321 is formed with a pair of through holes 323 for passing a pair of mounting screws 391 therethrough.

In addition, a facing surface (rear side) of the cover body 32 and the main body 31 is formed with a pair of partition walls 324 (see FIG. 7) facing up and down, and a wire groove 325 for passing the electric wire 38 therethrough. In a state where the lid body 32 is attached to the main body 31, the partition wall 314 is inserted between the pair of partition walls 324 (see FIG. 9). Thereby, the internal space of the accommodating recess 313 is reliably isolated in the vertical direction by the pair of partition walls 324 and the partition walls 314. The through-line groove 325 is formed between a pair of through-holes 323 in the left end portion of the main board 321, and is a position corresponding to the groove 316 formed on the front surface 311 of the body 31.

Here, at least one of the main body 31 and the cover body 32 further includes a restriction piece 326 that restricts movement of the electric wire 38 in the left-right direction by sandwiching the electric wires 38 connected to the pair of second terminals 35 and 36 (see FIG. 7). . In this embodiment, the restricting piece 326 is formed of a rib formed on the inner peripheral surface of the through-line groove 325 of the cover body 32. In a state where the cover body 32 is attached to the main body 31, the electric wire 38 passes through a space (hole) formed by the groove 316 and the through-line groove 325 between the front surface 311 of the main body 31 and the rear side of the cover 32, and from The receiving recess 313 is pulled out. Therefore, the restriction piece 326 formed on the inner peripheral surface of the through-line groove 325 contacts the electric wire 38, thereby sandwiching the electric wire 38 between the restriction piece 326 and the front surface 311 (the bottom surface of the groove 316) of the body 31, and as a result, In other words, movement of the electric wire 38 in the left-right direction is restricted. That is, the restriction piece 326 functions as a tension stopper for the electric wire 38. Further, in the present embodiment, the cover body 32 passes through a pair of through holes 323 located on both sides in the up-down direction of the through-line groove 325 and is fixed to the main body 31 with a pair of mounting screws 391. Therefore, by tightening the mounting screw 391, the restriction piece 326 can penetrate the electric wire 38, and the tension stopper of the electric wire 38 can be fulfilled more strongly.

The tension generating portion 37 includes a main shaft 371, a fixing portion 372, a fastening portion 373, an adjustment portion 374 (refer to FIGS. 1 and 2), and a compression coil spring 375. In this embodiment, the constituent elements of the tension generating portion 37 are all made of metal.

The main shaft 371 is cylindrical, and is connected to a male screw having a thread peak formed on its peripheral surface. Here, the main shaft 371 is a full-screw (headless bolt) having a thread peak formed over its entire length in the longitudinal direction (left-right direction). The main shaft 371 is supported by a backing metal member 6 (see FIGS. 1 and 2). The cushion metal 6 is made of a general metal such as an L-shaped angle iron. The backing metal piece 6 is fixed to the rear wall 41 of the catheter track 4, and the main shaft 371 is supported on the backing metal piece 6 in a state where it passes through the backing metal piece 6 in the left-right direction.

The fixing portion 372 includes a first nut 372a and a flat washer 372b. The fixing portion 372 is received in the holding recessed portion 317 of the main body 31 and is attached to one end portion (right end portion) in the longitudinal direction (left-right direction) of the main shaft 371. In other words, the first nut 372a functions as a separation preventing member for the main shaft 371 from the main body 31. The fastening portion 373 includes a second nut 373a, a spring washer 373b, and a flat washer 373c. The fastening portion 373 is mounted on the main shaft 371 at a position slightly inside (left side) from the fixing portion 372. The fastening portion 373 sandwiches a part of the main body 31 (the left side wall of the holding recessed portion 317) between the fixing portion 372 and the main shaft 371 without being shaken.

As shown in FIGS. 1 and 2, the adjustment portion 374 includes a double nut 374 a and a flat washer 374 b. The adjustment portion 374 is provided at an end portion (left end portion) on the opposite side of the main shaft 371 from the left and right sides of the main shaft 371 opposite to the fixed portion 372. The compression coil spring 375 is combined with the main shaft 371 so that the main shaft 371 penetrates the inside of the compression coil spring 375. The compression coil spring 375 is arranged between the cushion metal member 6 and the adjustment portion 374 in the left-right direction. A flat washer 376 is disposed between the compression coil spring 375 and the support metal piece 6.

According to this configuration, the adjustment portion 374 can be moved in the left-right direction by operating the adjustment portion 374 (double nut 374a), and the self-tension generating portion 37 can adjust the force acting on the pair of core wires 111 and 112 by the body 31. Rally size. That is, for example, when the adjustment portion 374 moves in a direction close to the cushion metal member 6, the compression coil spring 375 is compressed between the adjustment portion 374 and the cushion metal member 6, and the elastic force of the compression coil spring 375 causes The adjustment portion 374 receives a force in a direction away from the support metal piece 6. At this time, the adjusting portion 374 is subjected to a leftward force by the self-compressing coil spring 375, and the main shaft 371 is pulled together with the adjusting portion 374 to the left. Therefore, the pulling force (the force that pulls the body 31 to the left) by the self-tension generating portion 37 on the body 31 becomes larger. Conversely, when the adjustment portion 374 is moved in a direction away from the cushion metal member 6, the elastic force of the compression coil spring 375 is reduced, and the leftward force of the self-compressed coil spring 371 on the adjustment portion 374 is reduced. Therefore, the pulling force (the force that pulls the body 31 to the left) by the self-tension generating portion 37 on the body 31 becomes smaller.

However, as shown in FIGS. 8A and 8B, the accommodating recessed portion 313 and the holding recessed portion 317 are respectively opened on the front surface 311 side (front) of the body 31 and the rear surface 312 side (rear) of the body. In addition, the receiving recessed portion 313 formed on the front surface 311 of the main body 31 and the holding recessed portion 317 formed on the back surface 312 of the main body 31 are not connected to each other with holes or the like, but are physically isolated by a part of the main body 31. Therefore, electrical insulation between the pair of first terminals 33 and 34 and the pair of second terminals 35 and 36 accommodated in the accommodation recessed portion 313 and the fixing portion 372 accommodated in the holding recessed portion 317 is ensured.

Further, the tensile force generating portion 37 has a male screw and a female screw coupled to each other. In this embodiment, the "male thread" is the main shaft 371, and the "female thread" is the fixing portion 372 (the first nut 372a). Therefore, the fixed portion 372 surrounds the central axis C1 (refer to FIG. 9) along the axial direction (left-right direction) of the main shaft 371, and relatively rotates relative to the main shaft 371 and is coupled to the main shaft 371. Here, as shown in FIG. 9, the inner side surface of the holding recessed portion 317 is constituted by a rotation restricting portion 317 a that contacts the fixed portion 372 (the first nut 372 a) and restricts the surrounding of the fixed portion 372 (the first nut 372 a) Rotation of the central axis C1. Specifically, the holding recessed portion 317 is formed in a hexagonal shape that has a cross section orthogonal to the left-right direction that conforms to the outer shape (hexagonal shape) of the first nut 372a and is opened to the rear. Accordingly, in a state where the first nut 372a is accommodated in the holding recess 317, the inner side surface of the holding recess 317 is in surface contact with the first nut 372a, and serves as a rotation restricting portion 317a that restricts the rotation of the first nut 372a. Function.

Therefore, when the fixing portion 372 (the first nut 372a) is mounted on the main shaft 371 and the fixing portion 372 is housed in the holding recess 317, the main shaft 371 is rotated by being screwed into the fixing portion 372. However, it is not necessary to use a jig to prevent the rotation of the fixing portion 372.

In addition, the central axis C1 along the axial direction (left-right direction) of the main shaft 371 is located at substantially the same position as the center of the pair of core wires 111 and 112 in the front-rear direction, and the center of the pair of core wires 111 and 112 in the vertical direction. . Thereby, the pulling force acting on the main body 31 by the main shaft 371 becomes acting on the pair of core wires 111 and 112 in a direction drawn straight to the left, and it is possible to prevent unnecessary torque from acting on the main body 31.

According to the above-mentioned tensioning device 3, the front surface 311 of the main body 31 is provided with a receiving recess 313 for accommodating a pair of first terminals 33, 34 and a pair of second terminals 35, 36, and a back surface 312 of the main body 31 is provided with a receiving tension generating The holding recess 317 of the fixing portion 372 of the portion 37. In short, a receiving recess 313 that accommodates a pair of first terminals 33 and 34 and a pair of second terminals 35 and 36 and a retaining recess 317 that receives a fixing portion 372 of a tensile force generating portion 37 are opened in the front-rear direction of the body 31. On both sides. Therefore, in the tensioning device 3, even if the insulation distance between the tension generating portion 37 and the pair of first terminals 33 and 34 and the pair of second terminals 35 and 36 is sufficiently ensured, the tension generating portion 37 and one The first terminals 33 and 34 and the pair of second terminals 35 and 36 are aligned in the front-rear direction. Therefore, in the tensioning device 3, the width dimension (the size in the vertical direction) of the main body 31 can be reduced.

Furthermore, the tensioning device 3 of this embodiment has only one tension generating portion 37 (the main shaft 371, the fixing portion 372, the fastening portion 373, the adjusting portion 374, and the compression coil spring 375), so it can be reduced. The dimensions of the tensioning device 3 in the vertical direction. That is, in a tensioning device having a pair of tension generating portions, a structure having a pair of tension generating portion joints at both ends in the up-and-down direction of the body is generally used. Since the 37 series is one, the size of the main body 31 in the vertical direction can be reduced.

Furthermore, in the tightening device 3 of this embodiment, since the holding recessed portion 317 that accommodates the fixing portion 372 of the tension generating portion 37 is provided on the back surface 312 of the main body 31, a cover body that can be mounted on the front surface 311 side of the main body 31 32. It is screwed and fixed to the body 31. That is, by accommodating the fixing portion 372 on the back surface 312 side of the body 31, the cover body 32 mounted on the front surface 311 side of the body 31 can be fixed to the body 31 with a pair of mounting screws 391 without interfering with the fixing portion 372. .

(3) Modification Example The power supply system 10 of the above embodiment is just an example of the present invention. The present invention is not limited to the above embodiment. Even outside the above embodiment, as long as it does not depart from the scope of the technical idea of the present invention, it can be adapted to the design. Wait for various changes. Examples of the modification of the above embodiment will be described below.

The mobile device that operates by receiving power supply from the power supply system 10 is not limited to an electric trolley, and may be, for example, a crane or a vehicle for carrying a person. Moreover, the facilities to which the power supply system is applied are not limited to automatic warehouses or factories, and may be, for example, game facilities and shops. Furthermore, the power supply system 10 is not limited to indoor use, and may also be used outdoors for use outside the building.

In addition, the power supply system 10 is not limited to the supply of DC power, for example, it can also be used for the supply of AC power such as a single-phase two-wire type or a three-phase three-wire type. Furthermore, the power supply system 10 can also be used for communication such as transmitting control signals with a load (here, a mobile device). In other words, the power supply path 1 is not limited to the two-wire type having a pair (two) of core wires 111 and 112, and may also have one core wire or three or more core wires as the lead member 11.

Moreover, in the said embodiment, although the case where the power supply path 1 was extended linearly was demonstrated, the power supply path 1 may be extended along a curve. For example, when the moving path of the mobile device that receives power supply from the power supply system 10 is a curved path, the power supply path 1 is curved along this moving path. Even in this case, the power supply path 1 is subdivided into the extension direction of the power supply path 1 so that the extension direction of the power supply path 1 is defined as a linear first direction. That is, in the curved power supply path 1, the wiring direction among the parts of the subdivided power supply path 1 becomes the first direction.

The cross-sectional shape of each of the core wires 111 and 112 orthogonal to the extension direction (first direction) is not limited to a rectangular shape. For example, a V-shaped or U-shaped groove may be formed on the front side of each of the core wires 111 and 112.

Regarding the holding member 2, the upper and lower end surfaces of the pair of holding pieces 21 and 22 are not necessarily located inside the upper and lower end surfaces (outer top surface 126 and outer bottom surface 127) of the covering member 12 in the up and down direction. Composition. In other words, at least one of the upper and lower end surfaces of the pair of clamping pieces 21 and 22 may be located outside the upper and lower end surfaces (outer top surface 126 and outer bottom surface 127) of the covering member 12 in the up and down direction. At this time, at least one of the pair of holding pieces 21 and 22 protrudes from the covering member 12 in a front view. Even in this case, the holding in the vertical direction can be reduced compared to the configuration in which the pair of holding pieces 21 and 22 sandwich the covering member 12 itself instead of the held portion 13 from both sides in the vertical direction. The dimension (width dimension) of the component 2.

In the above-mentioned embodiment, the guide groove 129 is formed on the support surface 128 of the power supply path 1 and the guide protrusion 24 is formed on the holding member 2. However, the uneven relationship between the guide groove 129 and the guide protrusion 24 may be reversed. That is, a guide groove may be formed in the holding member 2, and a guide protrusion inserted into the guide groove may be formed in the support surface 128 of the power supply path 1.

In addition, the tensioning device 3 is not limited to the structure described in the above embodiment, and can be appropriately changed. For example, the flat washer and the spring washer are not necessary in the tension generating portion 37, and the flat washer and the spring washer may be appropriately omitted. The adjusting portion 374 may be a single nut instead of a double nut. Furthermore, the tensile force generating portion 37 is not limited to a configuration in which a tensile force is applied to the lead member 11 by compressing the elastic force of the coil spring 375, and the tensile force may be applied to the lead member 11 by other methods. For example, the tensioning device 3 may include a plurality of tension generating portions 37. The pair of second terminals 35 and 36 may be electrically connected to the pair of first terminals 33 and 34. For example, the pair of second terminals 35 and 36 and the pair of first terminals 33 and 34 may be used. Formed as a separate metal plate.

The restriction piece 326 functioning as a tension stopper for the electric wire 38 may be provided on at least one of the main body 31 and the cover body 32. For example, the restriction piece 326 may be provided on the front surface 311 (the bottom surface of the groove 316) of the main body 31. There are limiting pieces 326. Alternatively, restriction pieces 326 may be provided on both the body 31 and the cover body 32. In addition, the cover body 32 is not limited to a structure that is screw-fixed to the main body 31. For example, the cover body 32 can also be mounted to the main body 31 by a quick latch.

The installation target is not limited to the duct rail 4 and may be a structure such as a wall or a ceiling. In other words, the power supply path 1 may be directly attached to a structure such as a wall or a ceiling by the holding member 2 without passing through the duct rail 4.

The power supply path 1 is not limited to a tension type, and may be a connection type. At this time, the same configuration as the power supply path 1 described in the above embodiment is applied to each of the plurality of power supply paths 1 used in connection. However, since the tensioning device 3 is not necessary in the connected power supply path 1, the tensioning device 3 is omitted from the constituent elements of the self-powered system 10.

(4) Consolidation As explained above, the first power supply path 1 is a power supply path that is mounted to the installation object (conduit rail 4) by the holding member 2 and includes: a wire member 11; a covering member 12 ; And being held 13. The lead member 11 is composed of at least one core wire 111 and 112 that has conductivity and extends in the first direction (left-right direction). The covering member 12 has electrical insulation, and has a first surface 121 and a second surface 122 on both sides of a second direction (front-rear direction) orthogonal to the first direction (left-right direction). The open portion 123 contains the lead member 11. The held portion 13 protrudes from the second surface 122 of the covering member 12 along the second direction, and is held on both sides of the third direction (up and down direction) orthogonal to both the first direction and the second direction. Component 2. Both end surfaces in the third direction of the held portion 13 are located inside the both end surfaces (outer top surface 126 and outer bottom surface 127) in the third direction of the covering member 12 in the third direction.

According to this configuration, the held portions 13 held on the holding member 2 from both sides in the third direction (the up-down direction) are located inside both end surfaces (the outer top surface 126 and the outer bottom surface 127) of the covering member 12 in the third direction. Therefore, the size (width dimension) of the holding member 2 in the third direction can be reduced compared to the configuration in which the holding member 2 holds the covering member 12 itself rather than the held portion 13 from both sides in the third direction. . This has the advantage that, depending on the power supply path 1, not only the width dimension of the power supply path 1 itself but also the width dimension of the holding member 2 can be reduced. Therefore, even when the power supply path 1 is mounted on a long-shaped mounting object such as the duct rail 4, the degree of freedom of the mounting position of the holding member 2 in the duct rail 4 can be increased. That is, if the size of the catheter track 4 in the third direction is fixed, the smaller the size of the holding member 2 in the third direction is, the smaller the size of the holding member 2 in the third direction, the smaller the size of the holding member 2 in the third direction. The higher the degree of freedom of the mounting position of the holding member 2. As a result, the degree of freedom in the mounting position in the third direction of the power supply path 1 held by the holding member 2 is also improved.

The power supply path 1 of the second aspect is in the first aspect, and the held portion 13 preferably includes a pair of protruding pieces 131 and 132 facing each other with a gap in the third direction (up and down direction). According to this configuration, even if the held portion 13 functions as a reinforcing rib that increases the rigidity of the covering member 12, the held portion 13 itself is compared with a configuration in which the tip portions of the pair of protruding pieces 131 and 132 are connected to each other. The rigidity becomes lower. Therefore, the held portion 13 can impart moderate rigidity to the covering member 12, and the entire power supply path 1 can be deformed as described above in the “stacked state” even if a certain degree of flexure resistance is achieved. However, this configuration is not necessary in the power supply path 1, and for example, the end portions of the pair of protruding pieces 131 and 132 may be connected to each other.

The power supply path 1 of the third aspect is in the second aspect, and it is preferable that at least a part of the covering member 12 between the pair of protrusions 131 and 132 in the second surface 122 has a support surface 128, It is in contact with a part of the holding member 2 in two directions (front-rear direction). According to this configuration, since the supporting surface 128 of the covering member 12 can be supported by a part of the holding member 2 (the supporting table 23), the deflection of the power supply path 1 in the second direction can be suppressed. However, such a configuration is not a necessary configuration in the power supply path 1, and the support surface 128 may be appropriately omitted.

The power supply path 1 of the fourth aspect is in the third aspect, and the support surface 128 should be formed with a guide groove 129 extending in the first direction (left-right direction). According to this configuration, for example, by inserting the guide protrusion 24 of the holding member 2 into the guide groove 129 to form the relative positioning of the holding member 2 and the power supply path 1 in the third direction (up and down direction), the power supply path 1 can be suppressed. Deflection in the third direction. However, this configuration is not necessary in the power supply path 1, and the guide groove 129 may be appropriately omitted.

The power supply path 1 of the fifth aspect is in any one of the first to fourth aspects, and the lead member 11 is configured as follows: A pulling force in the first direction (left-right direction) functions. This structure has the following advantages: because the power supply path 1 is a tension type, a relatively long power supply path can be realized without a joint, and there is no need to connect a majority of the power supply paths 1 during construction, so construction can be saved. Time. Furthermore, the interval between the holding members 2 holding the power supply path 1 is also a tension type power supply path 1 which can be wider than the connected power supply path 1. However, this configuration is not a necessary configuration in the power supply path 1, and the power supply path 1 may be a connection type.

The power supply system 10 according to the sixth aspect preferably includes: the power supply path 1 according to any one of the first to fifth aspects; and a holding member 2 having a pair of holding pieces 21 and 22. At this time, it is preferable that the holding member 2 be configured to hold the held portion 13 by sandwiching the held portion 13 with a pair of holding pieces 21 and 22 from both sides in the third direction (up and down direction). With this configuration, the held portion 13 that is sandwiched by the pair of holding pieces 21 and 22 is located inside both end surfaces (the outer top surface 126 and the outer bottom surface 127) in the third direction (up and down direction) of the covering member 12. Therefore, compared to the configuration in which the pair of holding pieces 21 and 22 sandwich the covered member 12 itself rather than the holding portion 13 from both sides in the third direction, the number of holding members 2 in the third direction can be reduced. Dimensions (width dimensions). Therefore, according to the power supply system 10, there is an advantage that not only the width dimension of the power supply path 1 itself can be reduced, but also the width dimension of the holding member 2 can be reduced.

The power supply system 10 of the seventh aspect is in the sixth aspect, and the holding member 2 should further include: a pair of hook portions 27 and 28, starting from a pair of holding pieces 21 and 22, in the third direction (up and down direction) ) Protrudes upward from the side opposite to the held portion 13. At this time, it is preferable that at least a part of the pair of hooking portions 27 and 28 is located outside both end surfaces (the outer top surface 126 and the outer bottom surface 127) of the covering member 12 in the third direction in the third direction. With this configuration, the pair of hooking portions 27 and 28 can be used to flex the pair of holding pieces 21 and 22, and the operation of removing the power supply path 1 from the holding member 2 becomes easy. Therefore, it is possible to improve workability when it is necessary to remove the power supply path 1 from the holding member 2 due to, for example, a construction error or a layout change. However, this configuration is not necessary in the power supply system 10, and the pair of hooking portions 27 and 28 may be appropriately omitted.

1‧‧‧Power supply channel
2‧‧‧ holding member
3‧‧‧Tightening device
4‧‧‧ Catheter rail (object to be installed)
5‧‧‧ current collector
6‧‧‧ metal parts
10‧‧‧ Power Supply System
11‧‧‧ lead member
12‧‧‧ Covering member
21, 22‧‧‧ Clamping piece
21a, 22a‧‧‧ Main film
21b, 22b ‧ ‧ ‧ card hook
23‧‧‧Support Desk
24‧‧‧Guide protrusion
25‧‧‧ base
26‧‧‧Mounting piece
27, 28‧‧‧ Hook Department
27a, 28a ‧‧‧ 1st protrusion
27b, 28b‧‧‧ 2nd protrusion
31‧‧‧ Ontology
32‧‧‧ cover
33, 34‧‧‧ first terminal
35, 36‧‧‧ 2nd terminal
37‧‧‧Rally generating section
38‧‧‧Wire
41‧‧‧ rear wall
42‧‧‧ Upper wall
43‧‧‧ lower wall
44‧‧‧ front wall
45‧‧‧ opening
111, 112‧‧‧ core wire
121‧‧‧Part 1
122‧‧‧Part 2
123‧‧‧ Open Department
124‧‧‧ sidewall
125‧‧‧ Peripheral ribs
126‧‧‧ outer top surface
127‧‧‧ outsole
128‧‧‧ support
129‧‧‧Guide groove
131、132‧‧‧
131a, 132a
131b, 132b‧‧‧ 2
261‧‧‧ long hole
311‧‧‧front
312‧‧‧Back
313‧‧‧ receiving recess
314‧‧‧ next door
315‧‧‧Terminal hole
316‧‧‧Trench
317‧‧‧ holding recess
317a‧‧‧rotation restriction
318‧‧‧through hole
319‧‧‧Hanging frame
321‧‧‧Motherboard
322‧‧‧Hanging film
323‧‧‧through hole
324‧‧‧ partition
325‧‧‧through groove
326‧‧‧Limited
331, 341‧‧‧ tightening screws
351, 361‧‧‧Terminal screws
371‧‧‧ spindle (male thread)
372‧‧‧Fixed part (female thread)
372a‧‧‧The first nut
372b‧‧‧Flat gasket
373‧‧‧Fastening section
373a‧‧‧Second nut
373b‧‧‧Spring washer
373c‧‧‧Flat gasket
374‧‧‧ Regulation Department
374a‧‧‧Double nut
374b‧‧‧flat gasket
375‧‧‧Compression coil spring
376‧‧‧flat gasket
391‧‧‧Mounting screws
392‧‧‧Mounting nut
411‧‧‧Threaded hole
C1‧‧‧center axis
L1, L2 ‧‧‧ predetermined size

FIG. 1 is a perspective view of a power supply system according to an embodiment of the present invention. FIG. 2 is an exploded perspective view of the power supply system of FIG. 1. FIG. 3A is a cross-sectional view of a state where the power supply system of FIG. 1 separates a power supply path from a holding member, and FIG. 3B is a cross-sectional view of a state where the power supply system of FIG. 1 installs a power supply path to the holding member. FIG. 4 is a partially cutaway perspective view of the power supply system of FIG. 1. FIG. FIG. 5 is a cross-sectional view of the power supply path of the power supply system of FIG. 1 in a "stacked state". FIG. 6 is an exploded perspective view of the tensioning device of the power supply system of FIG. 1 as viewed from the upper left front. FIG. 7 is an exploded perspective view of the tensioning device of FIG. 6 as viewed from the left rear and the top. FIG. 8A is a front view of the tensioning device of FIG. 6 with the cover removed, and FIG. 8B is a rear view of the tensioning device of FIG. 6. 9 is a cross-sectional view of the tensioning device of FIG. 6.

Claims (5)

A power supply path is mounted to an installation object by a holding member, and includes: a lead member composed of at least one core wire having conductivity and extending in a first direction; and a covering member having electrical insulation. Both sides of the second direction orthogonal to the first direction have a first surface and a second surface, and the lead member is contained in an open portion formed on the first surface; and a held portion is from the covering member. The second surface protrudes along the second direction, and is fixed to the holding member from both sides of the third direction orthogonal to both the first direction and the second direction; and the first The two end surfaces in three directions are located inside the two end surfaces in the third direction of the covering member in the third direction, and the held portion includes a pair of protruding pieces, and a gap is provided in the third direction. Opposite to each other; and at least a part of the covering member between the pair of protruding pieces in the second surface has a supporting surface that abuts a part of the holding member in the second direction. For example, the power supply path of the first scope of the patent application, wherein a guide groove extending in the first direction is formed on the support surface. For example, the power supply path of the first scope of the patent application, wherein the tensile force in the first direction acts on the wire member. A power supply system includes: a power supply path as in any of claims 1 to 3 of the scope of patent application; and the holding member having a pair of holding pieces; and the holding member is configured as follows: from the third direction Both sides of the held portion are held by the pair of holding pieces to hold the held portion. For example, the power supply system of the fourth scope of the patent application, wherein the holding member further includes: a pair of hooking portions protruding from the pair of holding pieces toward the opposite side of the held portion in the third direction; and At least a part of the pair of hooking portions is located outside the both end surfaces of the covering member in the third direction in the third direction.