JP2007151313A - Overhead line suspended moving fixture - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a small and lightweight moving fixture with a simple structure, capable of avoiding a support object along an overhead line, and attaining safe traveling without dropping off with a relatively small force. <P>SOLUTION: The overhead line suspended moving fixture 1 has a base 2, a gate support member 3, a gate member 4, a gate receiving member 5, and a simultaneous opening mechanism 6. The gate support member 3 has a roller 7 capable of rolling on the overhead line T. The three gate support members are laid on the overhead line T in an extending direction. The gate member 4 is supported at the gate support member 3 by a vertical shaft so as to be horizontally rotated freely, constantly rotates and energizes an upper portion of the overhead line T at a closed position crossing in an extending orthogonal direction to be pressed by a supporting object during moving on the overhead line T and rotates to an open position. The gate receiving member 5 has an engagement portion 12 engaged with the gate member 4 at the closed position. The simultaneous opening mechanism 6 has a simultaneous opening lever 13 and a link mechanism 14 linking the opening lever 13 and the vertical shaft so that all gates may be simultaneously rotated to the open position when the lever is turned to the open position. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a moving metal fitting that can be applied as a device or the like that suspends and moves a tool, a measuring device, or the like on an overhead line such as a trolley line during maintenance inspection work on an electric railway overhead line.

Conventionally, what was described in patent document 1 is known as a suspension type overhead wire traveling machine, for example. This suspension type overhead line traveling machine is a traveling machine that can be applied to the inspection work of the trolley line, and even if there are obstacles such as thick parts or other connections on the overhead line, it can travel over it.
This suspended overhead traveling machine is attached to two rotating shafts, an endless chain 30 hung around these rotating shafts, six suspended portions provided at predetermined intervals on the endless chain 30, and attached above the side wall. A pair of rail members. The suspension part includes a pair of claw members biased to an open state by a spring. The claw member is closed by the pressing force from the rail member when the suspended portion is on the linear path of the chain, and is opened when the suspended portion is not on the linear path.
JP 2001-218326 A

The conventional suspension type overhead overhead traveling machine has a problem that its mechanism is complicated, large and heavy, requires large energy for movement, and is expensive.
Therefore, according to the present invention, it is possible to travel along an overhead line such as a trolley line suspended from above by a support, safely and with a relatively small force without falling off, while avoiding these supports. It is an object to provide a movable metal fitting that is simple in structure, small and light.

  In the present invention, in order to solve the above problems, first, a base 2 disposed below the overhead line T, a gate support member 3 supported by the base 2, and a position between a closed position and an open position are provided. A gate member 4 supported by the gate support member 3 so as to be horizontally rotatable, a gate receiving member 5 supported by the base 2 so as to face the gate support member 3, and a collective opening mechanism 6 supported by the base 2. The overhead wire suspension mounting metal fitting 1 was configured. The gate support members 3 are supported by the base 2 so as to stand on one side of the overhead wire T in the direction orthogonal to the extension line, and at least three gate support members 3 are provided at intervals in the extension direction of the overhead line T. The gate member 4 is horizontally supported by the gate support member 3 by the vertical shaft 8 on the base end side, and is always urged to rotate so as to be in a closed position that crosses the overhead line T in the direction perpendicular to the extension line. The overhead wire T can be rotated to an open position that is pushed by the support H during the movement and is parallel to the overhead wire T. The gate receiving member 5 is opposed to the gate support member 3 across the overhead wire T, and includes an engagement portion 12 that can be engaged with the distal end side of the gate member 4 in the closed position. The collective release mechanism 6 includes a collective release lever 13 pivotally supported by a base so as to be rotatable between an open position and a closed position, and a gate member when the collective release lever 13 is rotated to the open position. 4 is provided with a connecting mechanism 14 for connecting the opening lever 13 and the vertical shaft 8 so that all of the four members are simultaneously rotated to the opening position. The gate member 4 is provided with a roller 7 that can roll on the overhead line T while crossing the overhead line T in the orthogonal direction.

  Secondly, in the present invention, the connecting mechanism 14 of the collective opening mechanism 6 is constituted by the slide member 17, the drive arm 16, and the engaging member 18. The slide member 17 is provided below the base 2 so as to be movable relative to the base 2 between a closed position and an open position in conjunction with the rotation of the collective release lever 13. The drive arm 16 is fixed to the lower portion of the vertical shaft 8 so as to rotate horizontally between the closed position and the open position integrally with the vertical shaft 8 of the gate member 4. The engagement member 18 is fixed on the slide member 17 so as to engage with the drive arm 16. The engaging member 18 is urged by the drive arm 16 in the closed position to place the slide member 17 in the closed position, and the drive arm 16 is moved when the slide member 17 moves to the open position in response to the opening operation of the release lever 13. Arrange to move to the open position.

  Thirdly, in the present invention, an interlock mechanism 19 is provided between two gate members 4 and 4 adjacent in the traveling direction. The interlock mechanism 19 prevents the gate member 4 at the rear in the traveling direction from rotating to the open position when the gate member 4 at the leading side in the traveling direction is at the open position.

  4thly, in this invention, the said interlock mechanism 19 is comprised with the lock operation lever 20, the lock lever 21, the link 22 which connects both, and the urging member 23 which urges | biases both. . The lock operating lever 20 is positioned below the vicinity of the driving arm 16 on the leading side in the advancing direction and pivotally supported by the slide member 17. When the driving arm 16 on the leading side in the advancing direction is in the closed position, the upper end is the driving member. The upper end of the arm 16 is in the unlocked position in contact with the lower surface of the arm 16, and when the drive arm 16 is in the open position, the upper end is disposed so as to be out of the lower surface of the drive arm 16 and in the locked position. The lock lever 21 is positioned below the vicinity of the drive arm 16 on the rear side in the traveling direction, is pivotally supported on the slide member 17, and when the lock lever 21 is in the unlocked position, the lock lever 21 moves to the open position of the drive arm 16 on the rear side in the traveling direction. When there is a lock position without hindering the rotation, the drive arm 16 on the rear side in the traveling direction is disposed so as to prevent the rotation to the open position. The link 22 connects the lower ends of the lock lever 21 and the lock operation lever 22 so as to rotate together between the lock position and the unlock position. The urging member 23 urges the lock operation lever 20 and the lock lever 21 to rotate toward the lock position.

  The present invention configured as described above is configured to travel along an overhead line such as a trolley line suspended from above by a support, while avoiding these supports and running with a relatively small force without falling off. It is possible to provide a movable metal fitting that is simple in structure and small and light.

  The present invention configured as described above is configured so that the connecting mechanism in the collective opening mechanism for collectively opening the gate members when the metal fittings are attached to and detached from the overhead wire can be simply and reliably operated. can do.

  The present invention configured as described in the third aspect reliably prevents the gate member at the rear in the traveling direction from rotating to the opening position when the gate member at the leading side in the traveling direction is at the open position by the lock mechanism. It is possible to provide a highly safe overhead wire suspension moving bracket that does not drop off from each line.

  In the present invention configured as described above, the interlock mechanism is reliably operated with a simple configuration.

  Embodiments of the present invention will be described with reference to the drawings. 1 is a perspective view of the overhead wire suspension moving metal fitting of the present invention, FIG. 2 is a front view of the overhead wire suspension moving metal fitting of the present invention, FIG. 3 is a plan view of the overhead wire suspension moving metal fitting of the present invention, FIG. Is a side view of the overhead wire suspension moving metal fitting of the present invention, FIG. 5 is a partial sectional view of the overhead wire suspension moving metal fitting of the present invention, FIG. 6 is a sectional view taken along VI-VI in FIG. FIG. 8 is a perspective view of a gate support member in the overhead wire suspension moving bracket of the present invention, and FIG. 9 is an interlock in the overhead wire suspension moving bracket of the present invention. It is a front view of a mechanism.

  In the figure, an overhead wire suspension moving metal fitting 1 is a metal fitting that can move in one direction while avoiding a support on an overhead wire such as a trolley wire that is suspended and supported from above by a support such as a hanger. For example, during construction work, it can be used to suspend tools and materials for easy movement.

  The metal fitting 1 is supported by the gate support member 3 so as to be horizontally rotatable between a base 2 disposed below the overhead line T, a gate support member 3 supported by the base 2, and a closed position and an open position. A gate member 4, a gate receiving member 5 supported by the base 2 so as to face the gate support member 3, and a collective opening mechanism 6 supported by the base.

  The gate support members 3 are supported by the base 2 at the lower part so as to stand on one side of the overhead wire T in the direction orthogonal to the extension, and at least three gate support members 3 are provided at intervals in the extension direction of the overhead wire T.

  The gate member 4 includes a roller 7 that can roll on the overhead wire T, and is supported on the gate support member 3 by the vertical shaft 8 on the base end side so as to be horizontally rotatable, and above the overhead wire T in the direction orthogonal to the extension. It can be rotated approximately 90 degrees horizontally between a horizontally closed position (solid line state in FIG. 3) and an open position (virtual line state in FIG. 3) substantially parallel to the overhead line T. The spring 9 is urged to rotate toward the closed position.

  As shown in FIGS. 5 and 8, the vertical shaft 8 is supported in the gate support member 3. The vertical shaft 8 causes the cylindrical gate member 4 to extend horizontally in the right-angle direction at the intermediate portion, and causes the driving arm 16 to extend horizontally in the right-angle direction at the lower end protruding downward from the base 2. The vertical shaft 8 is housed in a cylindrical portion of the gate support member 3 so as to be vertically movable and horizontally rotatable, and is urged to rotate in one direction by a spring 9 and urged downward by a spring 10. The The cylindrical portion of the gate support member 3 is provided with a notch hole 11 for projecting the gate member 4 over a rotation range of approximately 90 degrees.

  The notch hole 11 arranges the gate member 4 in the closed position on one end side, and arranges the gate member 4 in the open position on the other end side. The cutout hole 11 continues from the one end side to the other end side with the holding portion 11a, the flange portion 11b, and the inclined portion 11c. The holding portion 11a on the one end side has an elliptical shape in the vertical direction that allows the base end side of the cylindrical gate member 4 to be inserted so as to be movable in the vertical direction by a predetermined distance. The flange portion 11b is a portion at the boundary between the holding portion 11a and the inclined portion 11c and having a narrower vertical width than the holding portion 11a. The inclined portion 11c has the same vertical width as the flange portion 11b and extends so as to rise from the flange portion 11b toward the other end side at a predetermined angle. Therefore, the gate member 4 is positioned higher when it protrudes from the end of the inclined portion 11c and is in the open position than when it protrudes from the holding portion 11a and is in the closed position. Therefore, when the gate member 4 is in the closed position and abuts against the support H (FIG. 4) while moving on the overhead line T, the gate member 4 is slightly lifted to the open position that is pushed by this and parallel to the overhead line T. While rotating 90 degrees and passing through the support H, the spring 9 returns to the closed position while being momentarily lowered.

  The gate receiving member 5 has a plate shape, is supported by the base 2 at the lower portion, and is disposed so as to face the gate supporting member 3 with the overhead wire T interposed therebetween. The gate receiving member 5 includes a notch 12 as an engaging portion that can be engaged with the distal end side of the gate member 4 in the closed position. The notch 12 is formed so as to open to the counter-traveling direction (arrow direction) side of the gate receiving member 5. The notch 12 has a holding part 12a, a flange part 12b, and an opening part 12c. The holding portion 12a is an oblong hole that is in the back and is slightly longer in the vertical direction, and can receive the closed end of the cylindrical gate member 4 with a margin. The opening part 12c is connected to the holding part 12a via the flange part 12b, and is opened outwardly in the opposite direction.

  The collective release mechanism 6 includes a collective release lever 13 and a connecting mechanism 14 that couples the collective release lever 13 to the vertical shaft 8. The collective release lever 13 is pivotally supported by the lower extension 15 of the base 2 in the middle, and can be rotated between an open position and a closed position. The connection mechanism 14 is coupled to the upper end portion of the collective release lever 13 on one end side and is coupled to the vertical shaft 8 on the other end side. The coupling mechanism 14 includes a drive arm 16, a slide member 17, and an engagement member 18. When the collective release lever 13 is rotated to the open position, all the gate members 4 are simultaneously rotated to the open position.

  The slide member 17 is provided below the base 2 so as to be horizontally movable in parallel therewith. The slide member 17 is closed with respect to the base 2 in conjunction with the rotation of the collective release lever 13 (the position indicated by the solid line in FIGS. 1, 2 and 6). ) And an open position (the position of an imaginary line in FIGS. 1, 2 and 6). That is, the slide member 17 is moved horizontally by engaging the slider 27 with the slide rail 26 installed in the traveling direction horizontally below the base 2.

  The drive arm 16 is fixed to the lower part of the vertical shaft 8 below the base 2 so as to rotate horizontally between the closed position and the open position integrally with the vertical shaft 8 of the gate member 4.

  The engaging member 18 is fixed upright on the slide member 17 so as to engage with the drive arm 16. The slide member 17 is urged in one direction by the spring 9 via the vertical shaft 8 -drive arm 16 -engaging member 18 and is always disposed in the closed position, like the gate member 4. When the release lever 13 is opened, the slide member 17 moves to the open position against the biasing force of the spring 9, and at this time, the gate member 4 is moved to the open position via the drive arm 16-vertical shaft 8. Deploy.

  Interlock mechanisms 19 are provided between the two gate members 4 and 4 adjacent to each other in the traveling direction. That is, as shown in FIG. 7, two sets of interlock mechanisms 19 are provided. As shown in FIGS. 5 and 9, each interlock mechanism 19 is provided at the lower portion of the slide member 17, and is connected to the drive arm 16 of the adjacent two gate members 4 and 4, the lock operation lever 20 corresponding thereto, and the lock. When the gate member 4 on the leading side in the traveling direction is at the open position, the gate member is located on the rear side in the traveling direction. 4 is prevented from rotating to the open position.

In FIG. 7, each lock operating lever 20 is positioned in the vicinity of the drive arm 16 of the gate member 4 on the leading side in the traveling direction (left side of each set in FIG. 7), and is pivotally supported by a shaft 24 at the lower portion of the slide member 17. Is done. The lock lever 21 is positioned in the vicinity of the drive arm 16 (not shown) on the rear side in the traveling direction (the right side of each set in FIG. 7), and is pivotally supported by the lower portion of the slide member 17 with a shaft 25. The link 22 connects the lower ends of the lock operation lever 20 and the lock lever 21 together so as to rotate between the lock position and the unlock position. The spring 23 is interposed between the slide member 17 and the link 22 and urges the lock operation lever 20 and the lock lever 21 to rotate toward the lock position.
5 to 7, the driving arm 16 is in the closed position, and the upper end of the lock operating lever 20 is in contact with the lower surface of the driving arm 16 and is in the unlocked position. When the lock operating lever 20 is in the unlocked position, the lock lever 21 is also in the lying unlocked position and does not hinder the rotation of the drive arm 16 on the rear side in the traveling direction to the open position (states of FIGS. 6 and 7). . In FIG. 9, when the drive arm 16 is in the open position and the upper end of the lock operation lever 20 is detached from the lower surface of the drive arm 16, the lock operation lever 20 and the lock lever 21 are arranged at the lock position. Is done. When the lock lever 21 is in the lock position, the lock lever 21 stands up to prevent the drive arm 16 on the rear side in the traveling direction from rotating to the open position.

  When the overhead wire suspension moving bracket 1 is mounted on the overhead wire T, when the lower part of the collective release lever 13 is pulled leftward in FIGS. 1 and 2 and operated to the release position, the slide member 17 is moved to the right. After moving to the release position, the drive lever 16 is rotated (counterclockwise in FIG. 6) by the engagement member 18, and all the gate members 4 are arranged at the release position via the vertical shaft 8. In this state, when the overhead wire suspension moving metal fitting 1 is brought into contact with the lower portion of the overhead wire T and the collective release lever 13 is released, all the gate members 4 are simultaneously returned to the closed position by the force of the spring 9, and the gate receiving member 5 To get on the overhead line T. During this time, the slide member 17 returns to the closed position, and the lock operating lever 20 is pushed down by the drive arm 16 and placed in the unlocked position.

  In this state, when the overhead wire suspension moving metal fitting 1 is pulled along the overhead line T in the traveling direction indicated by the arrow in the drawing, the roller 7 of the gate member 4 is moved on the overhead line T while rolling. Can do. When it comes to a support position by a support H such as a hanger in the course of movement, the leading gate member 4 is first pushed by the support H and rotated counterclockwise in FIG. H passes through the gate member 4. During this time, the drive arm 16 at the left end in FIG. 6 rotates counterclockwise and reaches the position of the imaginary line. As a result, the lock lever 20 at the left end is released and erected by the force of the spring 23, and at the same time, the lock lever 21 is erected via the link 22 (the state shown in FIG. 9) and is adjacent to the rear in the traveling direction (the center in FIG. 6). The drive arm 16 is prevented from rotating to the open position, thereby preventing the gate member 4 from being opened.

  When the support H passes through the leading gate member 4, the gate member 4 is instantaneously returned to the closed position by the force of the spring 9, and at the same time, the lock lever 20 at the left end in FIG. Then, the lock lever 21 is laid down and returned to the unlocked position. When the support H passes through the intermediate gate member 4, the related operation similar to that of the gate member 4 adjacent in the rearward direction of the support H is repeated, and the overhead wire suspension moving metal fitting 1 is dropped from the overhead wire T. And can run smoothly.

  When the gate member 4 is in the open position, there is no support for the overhead line T at that location, so there is a possibility that the base 2 is slightly lowered with respect to the overhead line T. Even in this state, since the open portion 12c in the notch 12 of the gate receiving member 5 is spread outward, the upper portion of the open portion 12c is opened higher than the overhead wire T and is not closed. On the other hand, when the gate member 4 rotates from the closed position to the open position, the gate support member 3 is slightly raised with respect to the base because the gate member 4 is guided by the inclined portion 11c of the cutout hole of the gate support member 3. Therefore, when the gate member 4 in the open position and in the raised position returns from the open position to the closed position, it surely enters the upper part of the notch open part 12c that opens above the overhead line T and closes smoothly. Can return to position.

  Note that the spring 10 that pushes the vertical shaft 8 of the gate member 4 downward relative to the base 2 has a spring force that is not compressed within the allowable load range applied to the base 2. Therefore, when an excessive load is applied to the base 2 with the overhead wire suspension moving metal fitting 1 mounted on the overhead wire T, the spring 10 is compressed, so that the position of the base 2 is perpendicular to the gate member 4 and the vertical position. It will be lowered relative to the axis 8. Then, the base end side of the gate member 4 moves to the upper part of the holding part 11 a in the notch hole of the gate support member 3, and the distal end side moves to the upper part of the holding part 12 a in the notch of the gate receiving member 5. For this reason, the gate member 4 is blocked by the flange portions 11b and 12b on the proximal end side and the distal end side, respectively, and cannot be rotated to the open position. In order to rotate the gate member 4 to the open position, it is necessary to reduce the load or move the overhead wire suspension moving metal fitting 1 slightly upward from below.

  The overhead wire suspension moving metal fitting according to the present invention is used as a device for suspending and moving a tool, a measuring device, etc. on an overhead wire such as a trolley wire, for example, at the time of maintenance and inspection work of an electric railway overhead wire.

It is a perspective view of the overhead wire suspension moving metal fitting of the present invention. . It is a front view of the overhead wire suspension moving metal fitting of this invention. It is a top view of the overhead wire suspension moving metal fitting of this invention. It is a side view of the overhead wire suspension moving metal fitting of this invention. It is a partial cross section figure in the overhead wire suspension moving metal fitting of this invention. It is VI-VI sectional drawing in FIG. It is explanatory drawing of the interlock mechanism in the overhead wire suspension moving metal fitting of this invention. It is a perspective view of the gate support member in the overhead wire suspension moving metal fitting of this invention. It is a front view of the interlock mechanism in the overhead wire suspension moving metal fitting of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Overhead wire suspension moving metal fitting 2 Base 3 Gate support member 4 Gate member 5 Gate receiving member 6 Collective release mechanism 7 Roller 8 Vertical shaft 9 Spring 10 Spring 11 Notch hole 11a Holding part 11b Eave part 11c Inclination part 12 Engagement part ( Notch)
12a holding part 12b collar part 12c opening part 13 collective release lever 14 connecting mechanism 15 base lower extension part 16 drive arm 17 slide member 18 engaging member 19 lock mechanism 20 lock operation lever 21 lock lever 22 link 23 spring 24 shaft 25 Axis 26 Slide rail 27 Slider

Claims (4)

  A bracket that can be moved in one direction while passing over the support suspended from and supported by a support from above; a base disposed below the overhead line; and a direction perpendicular to the extension of the overhead line And at least three gate support members supported by the base so as to stand on one side and spaced apart from each other in the extending direction of the overhead wire; and horizontally rotated by a vertical axis on the base end side of the gate support member It is supported freely and is always urged to rotate so that it is in a closed position that crosses the overhead line in the direction orthogonal to the extension, and it is pushed by the support while moving on the overhead line so that it is parallel to the overhead line. A gate member pivotable to a position; an engagement portion supported by the base, opposed to the gate support member across the overhead wire, and engageable with a distal end side of the gate member in a closed position With gate receiving member A collective release lever pivotally supported by the base so as to be rotatable between an open position and a closed position, and when the collective release lever is turned to the open position, all of the gate members are simultaneously moved to the open position. A collective opening mechanism including a connecting mechanism that connects an opening lever and the vertical shaft so as to rotate, and the gate member crosses the overhead line in an orthogonal direction on the overhead line. An overhead wire suspension moving metal fitting comprising a roller capable of rolling.   A connecting member for the collective release mechanism; a slide member provided below the base so as to be relatively movable between a closed position and an open position relative to the base in conjunction with rotation of the collective release lever; A drive arm secured to the lower portion of the vertical shaft so as to rotate horizontally between a closed position and an open position integrally with the vertical shaft of the member; fixed on the slide member to engage with the drive arm; When the drive arm is in the closed position, the slide arm is urged by the drive arm to place the slide member in the closed position, and when the slide member moves to the open position in response to the opening operation of the release lever, the drive arm is moved to the open position. The overhead wire suspension moving metal fitting according to claim 1, further comprising an engaging member arranged as described above.   An interlock mechanism is provided between the two gate members adjacent to each other in the traveling direction to prevent the gate member at the rear in the traveling direction from rotating to the open position when the gate member on the leading side in the traveling direction is in the open position. The overhead wire suspension moving metal fitting according to claim 1, wherein The interlock mechanism is positioned below the vicinity of the drive arm on the leading side in the traveling direction, and is pivotally supported by the slide member; and positioned below the vicinity of the driving arm on the rear side in the traveling direction. A lock lever pivotally supported by the slide member; between the lock lever and the lower end of the lock operation lever for rotating the lock lever and the lock operation lever integrally between a lock position and an unlock position. A link connecting the lock lever and a biasing member that pivotally biases the lock operation lever toward the lock position; the lock operation lever is pivotally supported by the slide member in the middle, and the leading side in the traveling direction When the drive arm is in the closed position, the upper end contacts the lower surface of the drive arm and is in the unlocked position, and when the drive arm is in the open position, the upper end is in the drive position. The locking lever is pivotally supported by the slide member in the middle, and when in the unlocked position, the locking lever is moved to the opening position of the drive arm on the rear side in the advancing direction. 4. The overhead wire suspension according to claim 3, wherein the overhead wire suspension is disposed so as to prevent the rotation of the drive arm on the rear side in the traveling direction to the open position when it is in the locked position without hindering the rotation. Moving bracket.

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