JP2003336201A - Front rod - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a front rod, of which the structure, maintenance and inspection are simplified and cost is reduced. <P>SOLUTION: In the front rod, the structure, maintenance and inspection are simplified by making a pivotal attachment and an insulating function combine to the pivotal attaching section of a rod 010 and an elbow metal fitting 020 and providing the intermediate section of the rod 010 with a rod-length adjusting mechanism 012, and the front rod displays specified performance at the low cost though the front rod is installed to an extremely severe environment as seen in a rail. <P>COPYRIGHT: (C)2004,JPO

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention belongs to the technical field of a front rod connected to the tip of a tongue rail. 2. Description of the Related Art FIG. 7 schematically shows a conventional branching device including a front rod installed on a rail-related device. Where 0
01 is a basic rail, 002 is a tongue rail, 003 is a sleeper, and 004 is a connection rod. 010 is a rod, 012
Denotes a length adjustment mechanism, 013 denotes a bracket, and 020 denotes an elbow fitting. The front rod is disposed between the tongue rails 002, and elbow fittings 020 are attached to both ends of the rod 010. The elbow fitting 020 is fixed to the tip of the tongue rail, and a length adjusting mechanism 012 and a bracket are provided in the middle. 01
3 is provided, and a connection can 004 is provided on the bracket 013.
And are integrally connected to the electric switch via a lock can or the like. [0004] Thus, the electric switch relates to a device for moving the tongue rail 002 in accordance with the turning operation, opening the railroad track in a direction different from the current one, checking the position thereof, and engaging with the lock. Things. Therefore, first, the structure of the conventional front rod will be generally described, and then the problems will be pointed out, and an improvement plan will be proposed. The rod 010 has elbow fittings 020 attached to both ends, and the elbow fittings 020 are connected to the right and left tongue rails 0.
02 tip. In the middle, a bracket 013 is provided, to which a connection can 004 is connected, and further connected to an electric switch via a lock can. In the middle, a length adjusting mechanism 012 is formed. [0006] The electric switch can move the tongue rail 002 in a desired direction by the switching operation, and open the railroad track in a direction different from the current one. , Check its position and make sure it is detained. Elbow fitting 020 is tong rail 00
2 Secured to the tip by bolts. [0007] The elbow fitting 020 is pivotally attached to a rod 010. In the middle of the rod 010, a length adjusting mechanism 012 for defining and finely adjusting the interval length between the tongue rails 002 and a bracket 013 for connecting to the connecting rod 004 are provided. However, in the lever 013, the connection can be made with a reamer bolt or the like.
04 is connected to one end and the other end is connected to a lock can coupling, and is connected to the electric switch via the lock can. Here, general features of the front rod will be described. First, since it is necessary to insulate between the left and right rails, a rod 01 connecting the tongue rails 002 is required.
Even in the case of 0, it is necessary to provide some insulating means in the middle. Second, it is necessary to connect the elbow fitting 020 and the rod 010. Third, the rod 010 needs to be provided with some length adjusting means 012 in order to adapt to the distance between the left and right rails. Fourth, when connecting to the lock can via the front rod and the connection can 004, it is necessary to provide positioning means for optimizing the lock position. Regarding the first point, the insulation between the rails has conventionally been such that a rod is cut off to provide an insulating structure, and then reconnected by a connecting plate (for example, Japanese Utility Model Publication No. H5-26). No. 39980, Utility Model Registration No. 2569851, FIG. 3 and its description). Therefore, the structure is complicated, extra steps and costs are required, and the strength of the entire rod 010 itself may be reduced. [0010] Regarding the second point, the connection between the elbow fitting 020 and the rod 010 is conventionally simply connected only by pivoting or the like (for example, the aforementioned Utility Model Registration Publication No. 2569851, FIGS. 1 and 2). 2), and had no other functions. Regarding the third point, the adjustment for adjusting the interval length of the rod 010 is performed by removing the elbow fitting 020,
This is a type in which the jaw members screwed to both ends of the rod 010 are turned and moved to thereby adjust the rod length (for example, the utility model registration publication No. 256).
No. 9851, see FIGS. 1 and 2). The fourth locking position is not necessarily adjusted only by the front rod itself, and will not be described here. The present invention relates to an elbow fitting 0
The coupling structure between the rod 20 and the rod 010 has been improved so that it has not only the coupling but also the insulation function. It is an object of the present invention to provide a front rod capable of exhibiting a desired function with a simple structure as a whole. Means of the present invention is a front rod including a rod 010, an elbow fitting 020, a jaw pin 030, and an insulating member 040. A screw jaw 011 is attached to the tip, and a length adjusting mechanism 012 is provided in the middle. The elbow fitting 020 has a pivot portion 211, in which a pivot hole 022 is formed, and the elbow fitting 020 is provided. , Can be fixed to the tongue rail 002 in the main body, the insulating member 040 is fixedly interposed in the pivot hole 022,
The front rod is characterized in that the rod jaw 011 is fixed by pivotally connecting the screw jaw 011 in an insulated state by the jaw pins 030. FIG. 1 is an exploded perspective view of a front rod according to the present invention. FIG. 2 is an overall perspective view of the front rod, where (a) is viewed from above and (b) is viewed from below. The sign is the same as before. The rod 010 has screw jaws 011 attached to both ends. A bracket 013 and a length adjusting mechanism 012 are provided in the middle.
The elbow fitting 020 is fixed to the tongue rail 002 on the main body side with a hexagonal bolt, nut or the like. Of course, the use of split pins is also possible. In the length adjusting mechanism 012, a rod having a reverse screw relationship, such as one male screw and the other female screw, is attached to both sides of the adjusting screw, and the rod is expanded and contracted in accordance with the rotation direction of the adjusting screw. And adjust its length. This type is generally called a turnbuckle. The elbow fitting 020 is provided with a screw jaw 011 attached to the end of the rod 010 and a jaw pin 03 in a pivot hole 022 provided in a pivot portion 021 formed at one end.
It is connected to the rod 010 by pivoting by zero. As the jaw pin 030, an auxiliary tool such as an anti-vibration packing can be used, and a fixing tool such as a snap ring or a split pin can be used. At this time, the insulating means 040 is fixedly disposed so as to insulate the elbow fitting side and the rod side. FIG. 3 is an enlarged perspective view of the elbow fitting 020.
Shown is an insulating means 040 fixedly arranged on the pivot 211. FIG. 4 shows an embodiment of the insulating means 040. The insulating means 040 includes an insulating bearing 041 and two insulating plates 042
And each is a separate entity. For a fixed mounting arrangement, the pivot 0
On the 21 side, a protrusion 023 is provided, and on the insulating plate 042, a notch 04
3 are formed. Since this is a relative physical means, the projection may be provided on the insulating plate and the notch may be provided on the pivot portion. 5 and 6 show another embodiment of the insulating means 040. In FIG. 5, one insulating plate 042 is integrated with one end of an insulating bearing 041. In FIG. 6, an insulating bearing 041 having an insulating plate 042 integrated at both ends is cut in the middle, and when the fixed mounting is performed by press-fitting from both ends of the pivot hole 022, the ends of the insulating bearing 041 are connected to each other. Abuts in the middle of the pivot hole 022, and the insulating plate 042
Close to the outside. The fixing of the insulating means 040 is performed by physical unevenness in this example, but it is also possible to use an adhesive. As described above, the elbow fitting 020 and the rod 010
Is intended to serve also as an insulating function between the tongue rails 002. However, since this pivot portion is also a pivot portion, the insulating means 040 needs to prevent the pivot. If the insulating means 040 is rotated and the insulating bearing 041 or the insulating bearing 041 causes friction inside the pivot hole 022 or the like, it is worn and a gap is formed, so that water or the like containing iron powder easily enters. This is because insulation cannot be maintained. On the other hand, the insulating means 04
0 means that the jaw pin 030
This means that the work of pivotally attaching and detaching the elbow fitting 020 and the rod 010 due to the above becomes difficult. The difficulty in installation, reattachment, maintenance and inspection on site means that when adjusting the length of the rod 010, the jaw pin 030 is pulled out, and the connection between the elbow fitting 020 and the rod 010 is required each time. This means that the conventional type of length adjusting means that removes the screw jaw 011 to adjust the length by rotating the screw jaw and reconnect the two can not be adopted. However, if the length adjusting mechanism 012 provided in the middle of the rod 010 can be combined as in the present invention, this disadvantage can be avoided and only the advantage of the original combination of insulation and insulation can be exhibited. . Since the insulating material 040 is fixedly provided at the pivotal connection between the elbow fitting 020 and the rod 010, the elbow fitting 02 is provided.
The connection between the rod 0 and the rod 010 can have an insulating function. This can prevent signal current leakage due to the front rod between the tongue rails 002. Also, the jaw pin 030 is combined with the length adjusting mechanism 012 provided in the middle of the rod 010.
Although the work such as maintenance and maintenance due to the pivotal attachment and detachment of the elbow fitting 020 and the rod 010 becomes difficult, the disadvantages can be covered and the length of the rod 010 can be easily adjusted. As a result, the structure of the front rod can be simplified, and maintenance and inspection can be simplified, so that a predetermined performance can be exhibited at low cost even though the front rod is installed in an extremely severe environment.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view of one embodiment of a front rod according to the present invention. FIGS. 2A and 2B are perspective views of the front rod of FIG. 1, in which FIG. 2A is viewed from above and FIG. FIG. 3 is an enlarged perspective view of an elbow fitting 020. FIG. 4 is an exploded view of an embodiment of the insulating means 040. FIG. 5 shows another embodiment of the insulating means 040. FIG. 6 shows still another embodiment of the insulating means 040. FIG. 7 is a schematic view of a branching device including a conventional front rod. [Description of reference numerals] 001: Basic rail 002: Tong rail 003: Sleeper 004: Connection rod 010: Rod 011: Screw jaw 012: Length adjusting mechanism 013 ... · Bracket 020 · · · Elbow fitting 021 · · · Axis part 022 · · · Pivot hole 023 · · · Projection 030 · · · Jaw pin 040 · · Insulating material 041 · · · Insulating bearing 042 · · · Insulating plate 043 ·. .. Notches

Claims (1)

Claims: 1. A rod (010) and an elbow fitting (020).
And a jaw pin (030) and an insulating member (040), wherein the rod (010) has screw jaws (011) attached to the left and right ends, and a length adjusting mechanism (012) in the middle. )
The elbow fitting (020) has a pivot part (021), in which a pivot hole (022) is formed, and the elbow fitting (020) has a tongue rail (002) in the main body part.
The insulating member (040) is fixedly interposed in the pivot hole (022), and the screw jaw (011) is pivotally attached by the jaw pin (030), and the rod (010) is insulated. A front rod, characterized by fixing.