JP2010069960A - Bolt-fastening type hanger ear for electric train railway - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a hanger ear having large strength in a pulling direction and being not destroyed even if large rocking in a vertical direction is generated on a cable at an earthquake. <P>SOLUTION: The hanger ear 1 is provided with a hanger bar 2 hooked on a hanging cable M; a pair of first and second ear pieces 3, 4 mounted to a lower end part and grasping a trolley wire T between both members; and a bolt 5 for fastening both ear pieces. The hanger bar 2 is formed by bending a round rod material made of metal to an approximately U shape and has a hook part 6 on an upper part. One end part 7 is linearly hung down and is fixed to a connection part 10 of the first ear piece 3, and an engagement part 8 bent in a horizontal direction and having a distal end directed to an outer side is provided on the other end part. The ear piece 4 is provided with a corresponding engagement part 14 for engaging the engagement part 8 of the hanger bar. If the bolt 5 is loosened, the engagement part 14 can release engagement with the engagement part 8 by removing the engagement with the engagement part 8. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a hungier for suspending a trolley line on a suspension line installed above the trolley line in a train track.

2. Description of the Related Art Conventionally, for example, those described in Patent Document 1 are known as railroad rail hanger. This Hangaiya is shown in FIG.
The hungier H described in Patent Document 1 includes a hanger bar 91 having a hook portion 92 at an upper portion for hooking on a suspension line M, a pair of opposed ear pieces 93 and 93 attached to the lower end of the hanger bar 91, and an ear. It has a bolt 94 for fastening between the pieces 93, 93 and a protective cover 96 made of an elastic synthetic resin fixed along the inside upper part of the hook portion 92. The hanger bar 91 is formed by bending a metal wire.
The hook portion 92 of the hanger bar 91 is curved three-dimensionally, and forms a loop that surrounds the suspension line M when viewed in the axial direction of the suspension line M when attached to the suspension line M (FIG. 4A). Further, the hanger bar 91 is lowered 95 so as to be hooked to the suspension line M by being lowered while rotating approximately 90 ° around the axis while maintaining the substantially vertical state (FIGS. 4A and 4B). B)). In order to remove the hook portion 92 from the suspension wire M, it is necessary to lift the hungier H upward while rotating the hanger 120 approximately 90 °.
A protective cover 96 made of elastic synthetic resin is attached to the hanger bar 91. The protective cover 96 includes an attachment member 96a and a flange member 96b. The attachment member 96 a is curved in a substantially U shape along the inside of the hook portion 92, and has a plurality of engaging portions 96 c that snap-engage with the hook portion 92. The flange member 96b is coupled to the attachment member 96b and is bent in a substantially U shape so as to straddle the suspension line M in the mounted state.
JP 2003-159968 A

In the conventional hungier, since the bottom of the hook part is open, the strength in the pulling direction is not sufficient, and if a large vertical swing occurs in the overhead line during an earthquake, the hanger bar may be deformed and destroyed. .
Accordingly, an object of the invention according to this application is to provide a hanger that does not break even if the strength in the pulling direction is large and the overhead wire is greatly shaken in the vertical direction during an earthquake.

A hanger 1 according to the present invention for solving the above-described problems is provided with a hanger bar 2 that is hung on a suspension wire, and a first and second hanger bar 2 that are attached to the lower end portion of the hanger bar 2 and grip the trolley wire T therebetween. A pair of ear pieces 3, 4 and a fastening bolt 5 that passes through between the pair of ear pieces 3, 4 and is fastened to be openable and closable between the two ear pieces are provided.
The hanger bar 2 is formed by bending a metal round bar in a substantially U shape, and has a hook portion 6 for hanging on a suspension line M on the upper part. One end portion 7 of the hanger bar 2 hangs down in a straight line and is fixed to the upper portion of the first ear piece 3. The other end of the hanger bar 2 is provided with an engaging portion 8 that is bent in a substantially horizontal direction when viewed from the extending direction of the trolley wire T and whose tip is directed outward (opposite to the one end portion 7).
The first ear piece 3 includes an ear piece main body 9 that grips the trolley wire T, and a connection portion 10 that is provided on the upper portion of the ear piece main body and to which one end of the hanger bar is fixed.
The second ear piece 4 includes an ear piece main body 13 that grips the trolley wire T, and a corresponding engagement portion 14 that is provided on the upper portion of the ear piece main body 13 and engages with the engagement portion 8 of the hanger bar. It comprises. The engagement portion 14 is engaged with the engagement portion 8 of the hanger bar in a state in which the tightening bolt 5 is tightened (solid line state in FIG. 2), and the tightening bolt 5 is loosened so as to be between the first ear pieces 3. When opened, the engagement with the engagement portion 8 is released. When the engagement with the engagement portion 8 is released, the engagement portion 14 can rotate around the axis of the tightening bolt 5 integrally with the ear piece main body 13 to release the engagement portion 8.

According to the hanger 1 of the invention according to this application, both ends of the hanger bar 2 are coupled to the respective ear pieces 3 and 4 in the installed state on the train line, so that the strength in the pulling direction is large, and the hanger bar 2 is vertically Even if the direction shakes greatly, it will not be destroyed.
While the present invention has been described above with reference to the accompanying drawings, the present invention is not limited to this.

  Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view of the hanger according to the present invention, FIG. 2 is a front view of the hunger of FIG. 1, and FIG. 3 is a side view of the hunger of FIG.

  The hanger 1 is attached to a lower end portion of the hanger bar 2 that is hung on the hanging wire, and a pair of first and second ear pieces 3 and 4 that hold the trolley wire T therebetween, and a pair of A fastening bolt 5 is provided which penetrates between the ear pieces 3 and 4 and fastens the ear pieces so as to be freely opened and closed.

  The hanger bar 2 is formed by bending a metal round bar in a substantially U shape on a plane, and has a hook portion 6 for hanging on a suspension line M on the upper portion. One end portion 7 of the hanger bar 2 hangs down in a straight line and is fixed to the upper portion of the first ear piece 3. At the other end of the hanger bar 2, there is an engaging portion 8 that is bent in a substantially horizontal direction (as viewed from the direction in which the trolley wire T is extended) and whose tip is directed outward (opposite to the one end portion 7). Provided.

  The first ear piece 3 includes an ear piece main body 9 that holds the trolley wire T and a connection portion 10. The connection part 10 is provided in the upper part of an ear piece main body, and the one end part of a hanger bar is fixed. The connection part 10 includes an extension part 11 and a connection cylinder part 12. The extension portion 11 extends upward and obliquely outward from the upper end portion of the ear piece body 9 when viewed from the direction in which the trolley wire T extends. The connecting cylinder portion 12 rises vertically from the tip of the extending portion 11, receives the one end portion 7 of the hanger bar, and is compressed and connected thereto.

  The second ear piece 4 includes an ear piece main body 13 that grips the trolley wire T and an engaging portion 14. The engaging part 14 is provided on the upper part of the ear piece main body 13 and is engaged with the engaging part 8 of the hanger bar. The engagement portion 14 is engaged with the engagement portion 8 of the hanger bar in a state where the tightening bolt 5 is tightened (in the state of the solid line in FIG. 2), and the tightening bolt 5 is loosened between the first ear piece 3. When opened, the engagement with the engagement portion 8 is released. When the engagement with the engagement portion 8 is disengaged, the engagement portion 14 rotates around the axis of the fastening bolt 5 integrally with the ear piece main body 13 as shown by the phantom line in FIG. Can be opened. The engaging portion 14 further includes an extending portion 15 and an eye portion 16. The extension portion 15 is formed from the upper end portion of the ear piece main body 13 and the extension portion 11 of the first ear piece with respect to the joint surface of the two ear pieces 3 and 4 when viewed from the extending direction of the trolley wire T. It extends substantially diagonally outward and obliquely outward. The eye part 16 stands vertically from the tip of the extension part 11 and receives the engagement part 8 of the hanger bar in a detachable manner.

  A synthetic resin protective cover 17 that is interposed between the hanger bar and the hanger bar M to protect the hanger wire M is detachably attached. The protective cover 17 is attached to the hook unit 6 in advance at the factory.

  The protective cover 17 includes an attachment member 18 and a flange member 19. As shown in FIG. 2, the attachment member 18 is curved in a substantially U shape along the inside of the hook portion 6, and has a plurality of engaging portions 20 that snap-engage with the hook portion 6. The eaves member 19 is coupled to the attachment member 18 and is curved in a substantially U shape so as to straddle the suspension line M in the mounted state. Unlike the conventional hanger bar that bends in three dimensions, the hanger bar 2 is bent on a flat surface. Therefore, the protective cover 17 attached to the hanger bar 2 is simplified in shape, easy to manufacture, and easy to attach.

  When the hanger 1 of this embodiment is mounted on a train line, as shown by a virtual line in FIG. 2, the fastening bolt 5 is loosened to open the first and second ear pieces 3 and 4, and the second The engagement between the ear piece 4 and the engagement portion 8 of the hanger bar is released, and the second ear piece 4 is rotated around the axis of the bolt 5 to release the engagement portion 8. The hook portion 6 is hung on the suspension wire M through the open portion, the second ear piece 4 is returned, the trolley wire T is inserted between the first ear piece 3, and the bolt 5 is tightened to grip the trolley wire T. To do.

  According to the hanger 1 of this embodiment, since both ends of the hanger bar 2 are coupled to the respective ear pieces 3 and 4 in the installed state on the train line, the strength in the pulling direction is improved, and the overhead line is moved vertically to the overhead line during an earthquake. Even if there is a big shake, it will not be destroyed. Since the relative movement allowance in the vertical direction of the suspension line inside the hanger bar 2 is larger than that of the conventional hunger, it is possible to absorb relatively large fluctuations in the vertical direction of the overhead line during an earthquake.

It is a perspective view of the hungier according to the present invention. FIG. 2 is a front view of the hungai of FIG. 1. FIG. 2 is a side view of the hungai of FIG. 1. A conventional hanger is shown, (A) is a front view and (B) is a side view.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Hanger 2 Hanger bar 3 1st ear piece 4 2nd ear piece 5 Fastening bolt 6 Hook part 7 One end part 8 Engagement part 9 Ear piece main body 10 Connection part 11 Extension part 12 Connection cylinder part 13 Ear piece main body 14 Engagement Joint part 15 Extension part 16 Eye part 17 Protective cover 18 Mounting member 19 鞍 member 20 Engaging part M Suspension wire T Trolley wire

Claims (3)

A hanger bar which is formed by bending a metal round bar in a substantially U shape, has a hook portion for hanging on a suspension wire at the top, and both ends are disposed below,
A first and second pair of ear pieces that are attached to the lower end of the hanger bar and grip the trolley wire between the two,
A railroad rail hanger equipped with a fastening bolt that penetrates between the pair of ear pieces and tightens between the ear pieces so as to be freely opened and closed,
One end of the hanger bar hangs down in a straight line, and is fixed to the top of the first ear piece,
The other end portion of the hanger bar is provided with an engagement portion that is bent in a substantially horizontal direction and has a tip directed outward.
The first ear piece includes an ear piece main body that grips a trolley wire, and a connection portion that is provided on an upper portion of the ear piece main body and to which one end of the hanger bar is fixed,
The second ear piece includes: an ear piece main body that grips a trolley wire; and a corresponding engagement portion that is provided at an upper portion of the ear piece main body and is engaged with the engagement portion on the other end side of the hanger bar. Equipped,
When the engagement portion of the second ear piece is engaged with the engagement portion of the hanger bar in a state where the tightening bolt is tightened, and when the tightening bolt is loosened and opened between the first ear piece. The railroad track is configured to be disengaged from the engagement portion of the hanger bar and to be able to open between the engagement portion of the hanger bar by rotating around the axis of the fastening bolt integrally with the ear piece body. Bolt tightening type hanger. The connecting portion of the first ear piece includes an extending portion extending upward and obliquely outward from an upper end portion of the ear piece main body, and a vertical connection rising from the tip of the extending portion to receive one end portion of the hanger bar and compressing connection. And further comprising a connecting tube portion,
The engaging portion of the second ear piece is substantially symmetrical with the extending portion of the first ear piece from the upper end portion of the ear piece main body with respect to the joint surface of the first and second ear pieces. The extension part extended diagonally upwards upward, and the eye part which stands | starts up perpendicularly | vertically from the front-end | tip of this extension part, and receives the engaging part of the other end side of the said hanger bar are further provided. Bolt-clamping type Hangaiya for train tracks.   The train according to claim 1 or 2, wherein a protective cover made of a synthetic resin for protecting the suspension wire is detachably attached to the hook portion of the hanger bar. Bolt tightening type hanger for railway.

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