JP4329911B2 - Front rod - Google Patents

Description

  The present invention relates to a front rod connected to the tip of a tongrel.

  In general, a tipping device composed of a conversion device and a locking device has a structure as shown in FIG. In other words, the tongrel T provided so as to be in close contact with and movable with respect to the fixed basic rail R, and the electric switch 100 as a locking device for maintaining the close contact state between the tongrel T and the basic rail R. It consists of and.

  The electric switch 100 is configured to be installed on two sleepers outside the pair of basic rails R, R, that is, outside the gauge. The electric switch 100 uses an AC motor M as a drive source, and transmits the driving force of the AC motor M in the order of a friction clutch, a reduction gear, and a conversion gear with a conversion roller (not shown). Configured to move.

  The motion can 101 is configured such that a cam (not shown) connected to the motion can 101 is moved by a conversion roller to give a linear motion in a direction orthogonal to the basic rail R. Then, the tongler T of the conversion device is converted via the switch adjuster 102 connected to the operation lever 101 and the tie bar 103 connected to the tip end side of the switch adjuster 102, and It is checked whether or not the tip position is in a normal position. When the tip position is in the normal position, the motion can 101 is configured to be locked by a cam bar (lock piece) (not shown).

  In the above-described verification, the tip of the Tonglele T of the conversion device is transmitted to the locking cane 106 via the front rod 104 and the connecting cane 105, and a lock piece is inserted into a notch (not shown) provided on the locking cane 106. If the lock piece can be inserted into the notch, the tip position of the conversion device is determined to be normal.

  When it is determined that the tip position of the conversion device is normal, the operation can 101 is locked by the cam bar, the lock can 106 is also locked by the lock piece, and the conversion device is double-locked. It becomes a so-called indirect double-locked tablet state.

  The basic configuration of such a switching device is described in Non-Patent Document 1, for example.

  Moreover, in a track circuit installation area, between a pair of basic rails is insulated. Therefore, it is also necessary to insulate the front rod connected to the Tongrel that contacts the basic rail. For this reason, conventionally, as described in Patent Document 1, for example, gauge insulation is achieved by sandwiching a pair of left and right rods with an insulating member and screwing them.

  Further, Patent Document 2 proposes a front rod in which an insulating member is provided on a pivot portion provided on an elbow fitting so as to provide an insulating function at both ends of the rod.

Japanese Utility Model Publication No. 5-39980 JP 2003-336201 A June 28, 2005, issued by Japan Railway Electrical Engineering Association, "Introduction to Electricity for Railway Engineers Signal Series 4 Switching Device", 7th printing, pages 38-47

  However, a front rod in which an insulating member is sandwiched between conventional rods cannot obtain sufficient rigidity. Also. Since the bolts and nuts for sandwiching the insulating member protrude, it is difficult to reduce the size. Further, in the case where an insulating member is provided in the pivot portion, the shaft rotates in the insulating member, so it is necessary to prevent the insulating member from rotating, and the structure is complicated and there is a concern about durability. There were problems, such as

  The problem to be solved by the present invention is to provide a front rod that has a sufficient insulation function, can be reduced in size, and can reduce installation space.

  The invention according to claim 1 is a front rod attached via an elbow fitting between a pair of tonglers, wherein the rod having a connecting tool with a connecting rod has connecting portions at both ends, and the connecting portions And an elbow bracket are pivotally attached via a connection fixture, and an attachment piece for connecting to the connection fixture is extended to the elbow fitting, and the rod is attached to the attachment piece. An attachment hole that opens in the axial direction is opened, and an insulating member is attached to the elbow fitting so as to cover the outer surface of the attachment piece and the inner surface of the attachment hole provided in the elbow fitting, and the connection fixture is A screw portion for fixing to the mounting piece, and a pivoting portion for pivotally pivoting the connecting portion of the rod, and inserting the screw portion into the mounting hole of the mounting piece. By fastening a nut to this threaded portion, the connection fixture is attached to the elbow fitting. A pivot hole that is fixed in an edge state and provided in the connection fixture is provided with a pivot hole that opens in the vertical direction, and the connection fixture and the connecting portion of the rod are pivotally pivoted by a pivot member. Then, the elbow fitting and the rod are connected in an insulated state.

  In addition to the structure described in claim 1, the invention according to claim 2 is provided with anti-friction means in the pivot hole for pivotally mounting the connection fixture and the connecting portion of the rod. It is characterized by.

  According to a third aspect of the present invention, in addition to the configuration described in the first or second aspect, a mounting piece is extended downward from the elbow bracket, and the insulating member is mounted so as to cover the extending mounting piece. The insulating member reaches at least the height of the bottom of the rail.

  According to a fourth aspect of the present invention, in addition to the structure described in any one of the first to third aspects, the connecting portion of the rod is formed in a bifurcated portion, and the pivotally attached portion of the connection fixture is inserted into the bifurcated gap of the connecting portion. Is inserted, the pivot member is inserted into the pivot hole of the pivot attachment portion, and the rod is pivotally attached to the elbow fitting.

  According to a fifth aspect of the present invention, in addition to the structure described in any one of the first to third aspects, the connection fixing tool is formed with a bifurcated portion, and the rod is connected to the bifurcated gap of the pivot portion. The rod member is inserted into the pivot hole of the rod and the pivot member is pivotally attached to the elbow fitting by inserting the pivot member.

  According to the present invention, not only can both ends of the front rod be provided with an insulating function, but also the size can be reduced, which is effective for space saving. That is, since the rod portion is electrically free, a structure that does not cause a short circuit by simply touching the basic rail is obtained. Further, when applied to a front rod for double slip, for example, the height position of the rod portion can be brought close to the basic rail, so that the checking and locking functions can be improved.

  Further, the front rod according to the present invention is not provided with an insulating member at a portion operated by an operator during maintenance inspection work. For this reason, since the worker does not have to work while caring about damage or dropping off of the insulating member, workability is remarkably improved.

  A front rod according to the present invention will be described with reference to the drawings. FIG. 1 is a front view showing an embodiment of the front rod, and FIG. 2 is a plan view showing an embodiment of the front rod. The front rod 1 according to this embodiment includes an elbow fitting 200, a connection fixture 300, a rod 400, a jaw 500 as a connecting portion, a pivot member 600, an insulating member 700, a length adjusting mechanism 510, and a connection. The tool 800 is provided. In addition, the code | symbol L shows a sleeper floor surface in the figure.

  In the embodiment shown in FIG. 3, for example, the elbow fitting 200 includes a main body portion 210 attached to the Tongrel T and an attachment piece 220 that protrudes inward from the tip of the main body portion 210 and extends downward. Yes. That is, the front view shape, the plan view shape, and the side view shape are each formed in a generally L shape.

  The attachment piece 220 has an attachment hole 230 that opens in the axial direction of the rod 400. The attachment hole 230 is an opening for inserting a threaded portion 320 of the connection fixture 300 described later.

  An insulating member 700 is attached to the mounting piece 220 of the elbow fitting 200 so as to cover the outer surface 221 and the inner surface 231 of the mounting hole 230. Therefore, the insulating member 700 is a pair of left and right members, for example, as shown in FIG. 3C, and a mounting portion that is in close contact with the outer plane 221 a of the mounting piece 220 and an edge of the base plate portion 710. 220, an outer standing piece 721 that rises so as to be in close contact with the outer surface 221b of 220. In addition, a circular upright piece 722 rises from the periphery of the opening 711 provided in the substrate portion 710 so as to be in close contact with the inner surface 231 of the attachment hole 230 of the attachment piece 220. In the illustrated embodiment, the insulating member 700 is divided such that the height of the outer standing piece 721 and the circular standing piece 722 is approximately half the thickness of the mounting piece 220. As long as the outer surface 721a and the outer surface 721b of the mounting piece 220 can be covered, they may be divided in any way.

  The insulating member 700 may be made of a non-conductive material. For example, a synthetic resin such as nylon 6 can be used.

  Next, the connection fixture 300 that connects the attachment piece 220 and the jaw 500 as the connecting portion 420 of the rod 400 will be described. The connection fixture 300 includes a base portion 310 having one half portion formed in a substantially semicircular shape and the other half portion formed in a substantially square shape, and a screw portion extending laterally from the base portion 310. 320, and a flange portion 330 formed between the base portion 310 and the screw portion 320.

  Further, the base portion 310 of the connection fixture 300 is provided with a pivot hole 311 through which the pivot member 600, for example, a reamer bolt 601 is inserted and pivotally attached to the jaw 500. 310 forms a pivot part that pivotally pivots the connecting part 420 of the rod 400. The pivot member 600 may be not only the reamer bolt 601 but also a jaw pin.

  Further, the pivot hole 311 may be provided with anti-friction means. As the anti-friction means, for example, an oil-impregnated bearing may be used, or a resin bush may be covered.

  Then, the threaded portion 320 of the connection fixture 300 is inserted into the mounting hole 230 of the elbow fitting 200 to which the insulating member 700 shown in FIG. 3D is attached, and is fixed with a nut (not shown). Then, the insulated pivoting part can be formed in the elbow fitting 200. In addition, when fixing the connection fixture 300, it fixes so that the base | substrate part 310 may become horizontal, in other words, the pivot hole 311 may open in a perpendicular direction.

  Therefore, the pivot portion, that is, the base portion 310 of the connection fixture 300 is inserted into the bifurcated gap of the jaw 500 forming the connecting portion 420 of the rod 400 as shown in FIG. 6, and the reamer bolt 601 is inserted in the vertical direction. It is pivotally pivoted by. At this time, the worker can work without touching the insulating member 700. In other words, the insulating member 700 does not exist at the position where the operator operates. Therefore, since the insulating member 700 is not damaged or dropped during the operation, the insulating function is not impaired. For this reason, the worker can work with peace of mind, and the workability is remarkably improved.

  1 and 2, the connection fixture 300 is fixed to the elbow fitting 200 provided with the insulating member 700 in an insulated state for the right side Tongrel T as well as the left side Tongrel T. By pivotably mounting on the jaw 500 which is the connecting portion 420 of the rod 400, the front rod 1 is insulated.

  Note that the jaw 500-L located on the left side in FIG. 6 or FIGS. 1 and 2 includes a length adjusting mechanism 510, which is a so-called turnbuckle. Further, a connecting tool 800 is provided in the middle of the rod 400 via an adjusting tool 410, and a connecting cane 810 is attached to the connecting tool 800, and a tip of the connecting cane 810 is not shown in the figure. Connected to a telescope.

  According to such an embodiment, it is possible to insulate both the left and right sides of the front rod 1, and more reliable insulation is possible. In addition, since the portion where the elbow fitting 200 is lowered is covered with the insulating member 700, even if the basic rail R contacts the elbow fitting 200, there is no short circuit. For example, it is possible to prevent a short circuit accident due to contact between the basic rail R and the elbow bracket 200 at the position indicated by a circle in FIG.

  In addition, when the amount of lowering of the elbow fitting 200 is large, that is, when the length of the mounting piece 220 extending downward is increased, the insulating member 700 is made to correspond to the length of the mounting piece 220. By extending and extending so as to reach at least the height H of the bottom of the basic rail R, it is possible to cover the portion where the mounting piece 220 is short-circuited (see the circled portion in FIG. 1). Therefore, any elbow fitting 200 can ensure an insulating function.

  By the way, conventionally, the contact between the basic rail R and the elbow bracket 200, in other words, a short circuit is likely to occur. To avoid this, the portion of the elbow bracket 200 that may be contacted is made thinner, so that the strength and durability are reduced. However, according to this embodiment, even if the basic rail R and the elbow fitting 200 come into contact with each other, a short circuit does not occur. For this reason, according to this embodiment, the elbow fitting 200 can be made thick, which is advantageous in terms of strength and durability.

  Therefore, this embodiment is extremely effective when applied to an elastic point or a special branching device such as a single slip switch (SSS) or a double slip switch (DSS).

  7A and 7B show an elbow fitting 200 according to another embodiment, in which FIG. 7A is a plan view of the elbow fitting 200, FIG. 7B is a side view of the elbow fitting 200, and FIG. FIG. 6 is a plan view of the elbow bracket 200 with the connection fixture 300 attached thereto.

  The elbow fitting 200 in this embodiment includes a main body portion 210 attached to a Tongrel T (not shown), and an attachment piece 220 that is bent inward from the tip of the main body portion 210 and extends forward. Yes. The attachment piece 220 is provided with an attachment hole 230 through which the threaded portion 320 of the connection fixture 300 is inserted in the axial direction of the rod 400.

  Then, an insulating member 700 is attached to the mounting piece 220, the pivot hole 311 of the connection fixture 300 is fixed so as to face the vertical direction, and it can be freely rotated by a pivot member on a jaw which is not shown in the drawing. You just need to pivot to

  According to this embodiment, it is possible to insulate both the left and right sides of the front rod 1, so that reliable insulation is possible, and even if the basic rail R and the elbow fitting 200 come into contact with each other, there is no short circuit. This embodiment is applicable to, for example, an ordinary branching device.

  FIG. 8 is a front view of a front rod 1 according to another embodiment. The front rod 1 according to this embodiment includes flat connecting portions 420 at both left and right ends of the rod 400, and the connecting portions 420 are pivotally attached to a connecting fixture 300 described later.

  That is, in the connection fixture 300 in this embodiment, a pair of pivot plates 312 are formed by separating the base portion 310 into two forks as shown in FIG. These pivot attachment plates 312 are each provided with a shaft hole 313 so that a reamer bolt 601 as the pivot member 600 can be inserted.

  On the other hand, the connecting portion 420 of the rod 400 is provided with a through hole 421 as a pivot hole corresponding to the reamer bolt 601, and an oil-impregnated bearing 422 is fitted as a friction reducing means. The rod 400 is provided with a connecting tool 800, and a connecting rod (not shown) is connected to the connecting tool 800.

  Also in this embodiment, the insulation between the elbow bracket 200 and the connection fixture 300 is ensured by mounting the insulating member 700 on the mounting piece 220 of the elbow bracket 200 in the same manner as in the embodiment described above. . Note that members having the same functions as those of the above-described embodiments are denoted by the same reference numerals and description thereof is omitted.

  Therefore, as shown in FIG. 8 or FIG. 9, the connecting portion 420 of the rod 400 is inserted into the bifurcated gap of the connection fixture 300 that is fixed to the elbow fitting 200 in an insulated state, and the connection is fixed by, for example, a reamer bolt 601 and a nut 602. The tool 300 and the rod 400 are pivotably attached.

  Then, the elbow fitting 200 and the rod 400 are connected in an insulated state. For this reason, even in this embodiment, even if the tongrel T and the elbow fitting 200 (not shown) contact each other, no short circuit occurs.

  According to this embodiment, it is possible to provide the front rod 1 in which a short circuit does not occur with a simple configuration. Further, the worker can work without touching the insulating member 700, and the workability is remarkably improved because the insulating member 700 is not damaged or dropped off during the work.

  Although the present invention has been described with reference to the illustrated embodiments, the present invention is not limited to the above-described embodiments, and can be appropriately implemented without changing the configuration described in the claims. For example, the size of the insulating member is not limited as long as a short circuit can be prevented when a basic rail and a tongrel come into contact with each other.

It is a front view which shows one Example of the front rod which concerns on this invention. It is a top view which shows one Example of the front rod which concerns on this invention. An example of an elbow bracket is shown, (a) is a plan view of the elbow bracket, (b) is a side view of the elbow bracket, (c) is a front view of the elbow bracket and an insulating member, and (d) is insulated from the elbow bracket. It is a front view of the state which mounted | wore the member. 1 shows an embodiment of an insulating member, (a) is a plan view of the insulating member, (b) is a perspective view of the insulating member, (c) is a side view of the insulating member, and (d) is a front view of the insulating member. . One Example of a connection fixture is shown, (a) is a top view of a connection fixture, (b) is a front view of a connection fixture. It is an assembly drawing of the principal part of a front rod. Other embodiments of the elbow bracket are shown, (a) is a plan view of the elbow bracket, (b) is a side view of the elbow bracket, and (c) is a state in which an insulating member is attached to the elbow bracket and a connection fixture is attached. FIG. It is a front view which shows the other Example of a front rod. The other examples of a connection fixture are shown, (a) is a top view of a connection fixture, (b) is a front view of a connection fixture, (c) is an assembly drawing of a connection fixture and a rod. It is a top view of the conventional common rolling device.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Front rod 100 Electric switch 101 Operation lever 102 Switch adjuster 103 Tie bar 104 Front rod 105 Connection rod 106 Locking rod 200 Elbow bracket 210 Main part 220 Mounting piece 221 Outer surface 221a Outer plane 221b Outer surface 230 Mounting hole 231 Inner surface 300 Connection fixture 300 Connection fixture 310 Base portion 311 Pivot hole 312 Pivot plate 313 Axis hole 320 Screw portion 330 Flange portion 400 Rod 410 Adjuster 420 Link portion 421 Through hole 422 Oil-impregnated bearing 500 Jaw 510 Adjustment mechanism 600 Pivot member 601 Reamer bolt 602 Nut 700 Insulating member 710 Substrate part 711 Opening part 721 Outside standing piece part 721a Outer plane 721b Outside side face 722 Circular standing piece part 800 Connector 810 Connection can

Claims (5)

It is a front rod attached via a pair of elbow brackets between a pair of Tongrels,
A rod having a connecting tool with a connecting cane has connecting parts at both ends, and pivotally attaches the connecting part and the elbow bracket via a connecting fixture,
In the elbow bracket, an attachment piece for connecting to the connection fixture is extended, and an attachment hole that opens in the axial direction of the rod is opened in the attachment piece,
An insulating member is attached to the elbow bracket so as to cover the outer surface of the mounting piece and the inner surface of the mounting hole provided on the elbow bracket,
The connection fixture includes a screw portion for fixing to the attachment piece, and a pivot attachment portion for pivotally attaching the connecting portion of the rod, and the screw portion is attached to the attachment piece. By inserting through the mounting hole and fastening the nut to this threaded portion, the connection fixture is fixed to the elbow fitting in an insulated state,
The pivot attachment provided in the connection fixture is provided with a pivot hole that opens in the vertical direction,
A front rod characterized in that the connecting fixture and the connecting portion of the rod are pivotally attached by a pivot member to connect the elbow fitting and the rod in an insulated state. 2. The front rod according to claim 1, wherein an anti-friction means is provided in a pivot hole for pivotally mounting the connection fixture and the connecting portion of the rod. A mounting piece is extended downward from the elbow fitting, and the insulating member is mounted so as to cover the extending mounting piece, and the insulating member reaches at least the height of the bottom of the rail. The front rod according to claim 1 or 2. The connecting portion of the rod is formed in a bifurcated portion, the pivoting portion of the connection fixture is inserted into the bifurcated gap of the coupling portion, the pivot member is inserted into the pivot hole of the pivoting portion, and the rod is inserted into the elbow 4. The front rod according to claim 1, wherein the front rod is pivotally attached to the metal fitting. The connecting fixture is pivotally formed with a bifurcated portion, the connecting portion of the rod is inserted into the bifurcated gap of the pivoting portion, the pivot member is inserted into the pivot hole of the rod, and the rod is attached to the elbow fitting. The front rod according to any one of claims 1 to 3, wherein the front rod is pivotally attached to the shaft.

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