JP3332282B2 - Guide connector - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector for a running board used for extending a power transmission line, and allows a running wheel to pass through even if it is inclined.

[0002]

2. Description of the Related Art As shown in FIG. 5, a running board is composed of a connector series C in which a plurality of connectors are pin-connected and a weight series W in which a plurality of weights are pin-connected. One end of the connector chain C is towed by the pilot line L, and the other end is caused to follow the electric wire E. One end of the weight chain W is pivotally attached to an intermediate portion of the connector chain C and hangs down.

When the direction of an electric wire passing through the wheel W is straight in a plan view, the wheel is supported in a vertical plane, and the connector train passes through the wheel in a normal posture. On the other hand, when the pilot line after passing the wheel is deflected and towed to the left or right, the wheel K is inclined at an angle α as shown in FIG. On the other hand, the posture of the connector series is restrained by the hanging weight series W, and the connection pins P are horizontal. In this state, the connector string cannot be bent around the center of the pin P, but becomes a rod-shaped body and breaks. There is also an accident in which the weights strike a gold car. If the wheel is tilted, a means is required to twist the connector correspondingly and forcefully engage.

[0004] Regarding this problem, Japanese Patent Application Laid-Open No. Hei 3-111907 is known. The cross section of the connector bulges left and right to make an oval shape.Even if the connector that entered the inclined wheel is once supported by one bulging end, it falls down to the center of the support point because of the oval shape. , It will fall to the normal position for the gold wheel. This reference is effective under limited conditions, but lacks universality. That is, when the connector passes through the wheel, the inclination angle α of the wheel approaches 90 °, and when the catenary angle in entering and exiting the wheel approaches 0 due to a large tension, the load application point and the rotating shaft are shifted. This is because they almost match, and generation of torsional torque cannot be expected. There is a need for a means that can respond to more extensive conditions.

[0005]

FIGS. 7 and 8 are a front view and a side view for explaining the operation of a conventional connector. In the figure, the guide connector G at the head of the connector series is pulled to the left by the pilot line L, rides over the top of the wheel K, the tip deflects to the left, and contacts the wheel at a point on the descending catenary line. The moment you did it. The pin G of the connector G when entering the apex of the wheel from the right is horizontal, but at the time when the pin P is at the above-mentioned point, it must be twisted to a direction parallel to the inclined wheel axis Ka.

Assuming that the traction force on the pilot line L in the lower left direction in FIG. 7 is F, this force can be decomposed into a horizontal component Fh and a vertical component Fv. It is Fh that acts on torsion. The force Fh acts around the center line of the ascending catenary on the right side in FIG. Therefore, assuming that the length of the perpendicular from the point g at the tip of the connector G to the extension of the ascending catenary is d (FIG. 8), the torsional torque applied to the connector G is Fh × d.

In order to increase the torque so that the twisting can be performed without hindrance, it is necessary to increase the length d and to reduce the frictional resistance during the twisting. Therefore, in the present invention, two corners are projected from the upper surface of the cylinder of the connector, and a roller is provided for each. In this cornered connector, the center of action of the torsional force is almost at the center of the virtual large cylinder that includes the cylinder of the main body and the two rollers.
The length d increases. The rollers also contribute to reducing frictional resistance during twisting.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to FIGS. The guide connector G includes a clevis 1a at one end of the cylindrical main body 1 and a projection 1b at the other end. The guide connector G is combined with a projection and a clevis of an adjacent connector, and is rotatably connected by a connection pin P. A bearing fitting 2 is fixed to the upper surface of the main body 1 and bearings 2 are provided at both ends thereof.
a. The roller 3 is rotatably supported by this bearing. A plurality of guide connectors G are used in the vicinity of the distal end of the connector chain C.

[0009]

The conventional connector has only a cylindrical main body, and a twisting force is applied to the outer periphery around the center line of the main body.
On the other hand, in the above configuration, the cylindrical main body 1 shown in FIG.
With the center line of the large virtual cylinder enclosing the two rollers 3 as the center, a torsional force is applied to the outer circumference of this virtual cylinder. The length d of the perpendicular as described in “Solution” increases, and the torsional torque increases. In the vicinity of the top of the wheel, the guide connector G shown in FIG. 4 is largely twisted clockwise, and the pin P at the horizontal position is parallel to the axis Ka of the wheel so that the wheel can be smoothly loaded. Subsequent connectors follow this. The rollers also contribute to reducing friction with the wheel surface of the wheel. Since a pair of rollers is used, the deflection direction from the wheel can be used on either the left or right side.

[0010]

[Effect] Even if the inclination angle α of the wheel becomes 90 °, and the catenary angle of the guide connector to the wheel becomes close to 0, it is possible to generate a torsion torque. Therefore, the guide connector smoothly passes through the wheel, and breakage of the connector series and collision between the weight and the wheel can be eliminated.

[Brief description of the drawings]

FIG. 1 is a front view of a connector.

FIG. 2 is a plan view of the same.

FIG. 3 is the same side.

FIG. 4 is an explanatory diagram of the operation.

FIG. 5 is an explanatory diagram of a running board.

FIG. 6 is an explanatory view of an inclined wheel.

FIG. 7 is a front view for explaining the operation of the conventional connector.

FIG. 8 is a side view for explaining the operation.

[Explanation of symbols]

 1 Body 2 Bearing bracket 3 Roller P Connection pin C Connector series G Guide connector W Weight series L Pilot wire E Electric wire K Wheel

──────────────────────────────────────────────────続 き Continuation of the front page (56) References Japanese Utility Model Sho 62-111709 (JP, U) Japanese Utility Model Sho 59-72813 (JP, U) Japanese Utility Model Sho 63-63015 (JP, U) Japanese Utility Model No. 4- 17610 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) H02G 1/02

Claims (1)

(57) [Claims] In a running board having one end of a weight chain pivotally attached to an intermediate portion of the connector chain, the running board is used at the leading end of the connector chain, and a clevis is protruded from one end of the cylindrical main body to the other end. A guide connector having a pair of rollers provided on the outer periphery of the main body via a bearing fitting fixed to the main body, the pair of rollers being provided on the outer periphery of the main body so as to be able to be connected to each other one by one.