JP4351267B2 - Link carrier fixing device - Google Patents

Description

  The present invention provides a link carrier fixing device suitable for installing a link carrier supporting a link between an escape crank and a right angle crank while maintaining a distance corresponding to a required distance between the rail and the crank without relying on a long sleeper. About.

  The turnout, which is the most important railway facility, has an extremely long lead length with an increase in the speed of trains, for example. In a branching device having a lead length exceeding a certain distance, a switch adjuster placed at a fixed position and a second switch adjuster disposed at a certain distance from the switch adjuster are used. The switch adjuster that operates according to the operation of the electric switch is special between the switch adjusters because the first switch adjuster and the second switch adjuster must operate in the same way during the switching of the branching device. A simple link mechanism is incorporated.

  For example, as shown in FIG. 5, when the switch 51 is started, the rod 53 of the first switch adjuster 52 moves and the first switch rod 54 is driven. The movement of the rolling bar 54 moves the tongrel T to contact the basic rail. The rod 53 moves in the same direction as the first rolling bar 54 moves, and the link 55 rotates the crank 57 of the right-angle crank device 56. The rotation of the crank 57 causes the link 59 on the link carrier 58 to move leftward in the figure, and the adjustment link 60 moving in the same direction at this time rotates the driving crank 62 of the escape crank device 61.

  By the rotation of the driving crank 62, the rod 65 of the second switch adjuster 64 moves through the escape crank 63, and the second rolling rod 66 is driven. The movement of the second rolling rod 66 moves the tongrel T to contact the basic rail. In other words, the first switch adjuster 52 and the second switch adjuster 66 are linked to perform the same operation of bringing the Tongrel T into close contact.

  The right angle crank device and the escape crank device are required to be separated from the rail by a distance that does not hinder the conversion (hereinafter referred to as a required distance). The link carrier device that supports the link between the right angle crank device and the escape crank device is also arranged at a position separated from the rail by a distance approximately equal to the required distance, but the sleepers used at this time are standard sleepers. It must be by a long sleeper that is longer than the required distance.

  Up to now, escape crank devices and right-angle crank devices have been used in relatively large sizes, but it is the smaller devices that are currently attracting attention. According to such a downsized apparatus, there is an advantage that the entire apparatus can be placed on one iron sleeper (hereinafter referred to as a grid sleeper). As a feature of the downsized device, it is conceivable that each crank device has a lower installation height than the conventional devices. In this case, the installation height of the link carrier device that supports the link is also lowered, and when trying to install the link carrier device on the long grid sleeper, the long grid sleeper is deeply shaved off, It is necessary to fit in.

  However, if the long grid sleeper is subjected to additional processing for mounting the link carrier device, too much material is scraped off, which is extremely wasteful in the manufacturing process.

  Accordingly, an object of the present invention is to provide a link carrier fixing device capable of installing a link carrier device while maintaining a distance commensurate with a required distance between rails and cranks without relying on a long grid sleeper.

  A link carrier fixing device according to the present invention includes a connection plate coupled to a sleeper via a fastening member, a U-shaped extension member extending from the tip of the connection plate while maintaining a desired length, and the extension member and the link. It is mounted between the carrier device and an insulator for electrically insulating the link carrier device.

  The extension member of the present invention extends with a certain length corresponding to the required distance between the rail and the crank. With such a long extension member, it is possible to secure a distance substantially equal to the required distance together with the sleeper in the installation of the link carrier device. As a result, the link carrier device can be installed with an extension member that is lightweight and easy to handle regardless of the long sleeper.

  In the track circuit using the rail as a part of the signal equipment, since the link is connected with the circuit, an insulating means for blocking the connection with the adjacent track circuit is used. In the present invention, an insulator is interposed between the extension member and the link carrier device so as to electrically insulate the link carrier device. As a result, the track circuit current can be prevented from flowing into the adjacent track circuit.

  An embodiment of a link carrier fixing device of the present invention will be described with reference to the drawings. In FIG. 1, the link carrier fixing device of the present embodiment includes an integrated connection plate 1 and an extension member 2. The connection plate 1 is made of a flat plate material and is fixed to the grid sleeper 3 with bolts 4. The extension member 2 is formed by combining a plurality of plates in a U-shape as will be described later, and has a certain length corresponding to the required distance between the rail and the crank. In the present embodiment, connection plate 1 and extension member 2 are joined together by welding.

  In addition, the link carrier fixing device includes a reinforcing plate 5 disposed so as to extend from the connection plate 1 to the extension member 2. The reinforcing plate 5 is disposed at substantially the center of the U-shaped extension member 2. In the present embodiment, the reinforcing plate 5 has a joint portion between the extension member 2 and the connection plate 1 integrated by welding.

  In addition, the link carrier fixing device includes an insulator 7 for electrically insulating the link carrier device 6. This insulator 7 is mounted between the extension member 2 and the link carrier 6. As shown in FIGS. 2A and 2B, the insulator 7 is mounted around the insulating plate 9 interposed between the extension member 2 and the link holder 8 of the link carrier device 6 and the holder mounting bolt 10. And the insulating collar 14 attached to the lower surface of the collar 12 and the nut 12 screwed into the holder mounting bolt 10. The insulating plate 9 and the insulating tube 11 are made of an epoxy resin. The insulating collar 14 is made of a polyamide resin (for example, nylon 6).

  On the other hand, as shown in FIGS. 3A and 3B, the extending member 2 is formed in a U-shaped cross section by combining the plate 14 and the two plates 15 and 16. A long hole 17 is formed in the center of the plate 14 along the longitudinal direction. Further, four holes 18 are formed at the end of the plate 14. The hole 18 is formed in accordance with the outer diameter of the holder mounting bolt 10 (see FIG. 2).

  In the link carrier fixing device configured as described above, the extension member 2 extends while maintaining a length corresponding to the required rail-crank distance. For this reason, in the installation of the link carrier device 6, it is possible to secure a necessary distance corresponding to the required distance together with the grid sleeper 3. The link carrier device 6 is not a means for carrying a high load, but is lightweight and can support the link carrier device 6 only by the extension member 2 that is easy to handle.

  Further, in the case where the rail is used as a part of the signal equipment, the link carrier device 6 whose main element is made of a metal material is electrically connected to a part of the adjacent rail. Need to be insulated. In this embodiment, since the insulator 7 is interposed between the link carrier device 6 and the continuity, it is possible to block conduction, and it is possible to prevent the orbital current from flowing to the adjacent orbital circuit.

  Thus, according to the present embodiment, the link carrier device can be installed while maintaining a distance commensurate with the required distance between the rail and the crank without depending on the long grid sleeper.

  In addition, although the insulator 7 of this Embodiment described what shape | molded the insulating plate 9 and the insulating tube 11 as a separate element, as shown in FIG. 4, this is the insulator 15 which consists of one element. You may shape | mold integrally.

It is a front view which shows one Embodiment of the link carrier fixing device by this invention. 1A and 1B show a link carrier fixing device shown in FIG. 1, in which FIG. 1A is a plan view of the link carrier fixing device, and FIG. 2B is a cross-sectional view taken along line XX in FIG. The extension member by this invention is shown, (a) is a top view of an extension member, (b) is sectional drawing which follows the YY line of Fig.3 (a). It is sectional drawing which shows other embodiment of the insulator by this invention. It is a top view which shows an example of the conventional conversion lock device.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Connection plate 2 ... Extension member 3 ... Grid sleeper 5 ... Reinforcement plate 7, 15 ... Insulator 9 ... Insulation plate 11 ... Insulation tube 14 ... Insulation collar

Claims (1)

A connecting plate coupled via a sleeper and a fastening member; a U-shaped extending member extending from the front end of the connecting plate while maintaining a desired length; and the attachment between the extending member and the link carrier device, A link carrier fixing device comprising an insulator for electrically insulating the link carrier device.

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