JPS6210867B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a tongue rail device for a traverser used in a railway vehicle inspection and repair factory.

FIG. 1 is an external view of the traverser. In general, a railway vehicle inspection and repair factory has various specialized workplaces, such as workplaces for each type of equipment such as disassembly, outfitting, painting, and trolleys, and vehicles are transferred from one workplace to another according to a fixed schedule, but the factory In order to use the site efficiently, a traverser as shown in Figure 1 is installed.

Reference numeral 1 in FIG. 1 denotes rails for vehicle service lines, which are laid in parallel in large numbers and drawn into the respective workplaces. Reference numeral 2 denotes a traverser, which can move a vehicle 5 on it on traveling rails 4 by means of saddles 3 at both ends. A vehicle running rail 6 is laid on the traverser 2, and a tongue rail 7 is used to transfer the vehicle 5 from the ground side service line rail 1 to the running rail 6 of the traverser 2.

Here, the conventional tongue rail 7 is shown in FIGS.
As shown in detail in the figure, it is rotatably supported by a pin 9 on a bracket 8a of an end beam 8 of the traverser 2,
A tongue rail flip-up device consisting of a link 10 and a pull rod 11 that are integral with the tongue rail 7 flips up the traverser 2 as shown by the two-dot chain line in FIG. 1, allowing the traverser 2 to run on the rail 4. Further, when transferring the vehicle 5, the tongue rail 7 was lowered from the state shown by the two-dot chain line in FIG. 1 to the state shown by the solid line to match the rail 1 on the ground. The tip of the pull rod 11 uses an appropriate driving source (not shown) such as an air cylinder or an electric cylinder.

The conventional method described above has the following drawbacks.

First of all, the components of the flip-up device such as the pull rod 11 are exposed on the top surface of the traverser 2. The upper surface of the traverser 2 also serves as a work area and a walkway, and the protrusion of the above-mentioned components poses a safety problem. Although it is conceivable to arrange the pull rod 11 below the end girder 8, it is generally difficult to create space for the arrangement since the running rail 4 is located below this.

Since the vehicle 5 runs on the upper surface of the second traverser 2, there is a natural limit to the height of the protrusion of the pull rod 11 and the like due to the vehicle limit. For this reason, in the past, it was customary to design the moment arm of the link 10 as short as possible, and in connection with this, it was necessary to reduce the weight of the tongue rail 7, which caused problems in terms of strength design.

SUMMARY OF THE INVENTION In view of the above-mentioned conventional drawbacks, it is an object of the present invention to provide a tang rail flip-up device that eliminates the protrusion of component parts to the upper surface of a traverser and is not subject to significant restrictions on the weight of the tang rail.

An embodiment of the present invention will be described below with reference to FIGS. 4 and 5. Note that the same components as in FIGS. 1 to 3 will be described using the same reference numerals. 8 in the diagram
is the end girder of the traverser, and there are 2 on both sides of this end girder 8.
Brackets 8a, 8a are provided in a protruding manner, and the tongue rails 7, 7 are rotatably supported by pins 9 between the two ends of the brackets. Both of the tongue rails 7, 7 are connected by a horizontal beam 12, and a guide surface 1 inclined downward near the center of the horizontal beam 12
A guide 13 having 3a is provided. Further, a frame 14 is horizontally protruded from the end girder 8 to the lower side of the tongue rail 7, that is, the lower side of the guide 13,
Horizontal guides 15, 15 are provided on both sides of this upper surface. Further, a push rod 16 is provided in the center of the end beam 8, passing through the end beam, and the push rod 16 is supported by a bush 17 so as to be movable in the axial direction with respect to the end beam 8. A pin 18, links 19, 19, and pin 2 are attached to the tip of this push rod 16.
Wheels 21, 21, and 22 are rotatably provided through the guide 13, and the intermediate wheel 22 contacts the guide 13, and the wheels 21, 21 on both sides contact the guides 15, 15.

The horizontal beam 12 shown in FIG. 4 shows a cross-sectional shape near the center, and the upper surface of the tongue rail 7 and the upper surface of the horizontal beam 12 appear to match, but this is due to the raised central portion of the horizontal beam 12. Therefore, it goes without saying that the vicinity of the joint between the tongue rail 7 and the cross beam 12 is shaped so that the flange portion of the wheel 5a of the vehicle 5 shown in FIG. 1 can run thereon. The other end of the push rod 15 is connected to a pneumatic or electric cylinder or other suitable drive device (not shown).

Next, the operation of the apparatus of the present invention having the above-described structure will be explained.

When the push rod 15 moves forward in the direction of arrow A in FIG.
20 and 21 enter into a wedge shape between the upper and lower guides 13 and 15, 15, and by receiving a reaction force from the frame 14, the tang rail 7 is moved around the pin 9 as a fulcrum as shown by the two-dot chain line in FIG. Jump up.

In addition, in the above embodiment, the guide surface 13a of the upper guide 13 has a straight inclined shape.
By forming the guide surface 23a of the guide 23 into a curved shape as shown in the figure, the effect of flipping up the tongue rail 7 can be improved. The most reasonable curve can be determined as follows. In other words, when the wheel 22 is moved from position A to position A' by the push rod, the contact point B of the guide 23 with respect to the guide surface 23a at both positions,
The respective distances from the pivot point O of the tongue rail 7 at B' are a and b, the pushing force of the push rod is F, and the vertical force exerted on the tongue rail 7 by the wheel 22 at position A is P, P is the rotational moment around the rotational fulcrum O due to the own weight of the tongue rail 7
If Mw, set so that P×a>Mw. As a result, the wheel 22 and guide 23 at position A
The tendency of the tangent line at the contact point B with is determined as tan ^-1 F/P. Next, the vertical force applied to the tongue rail 7 when the wheel 22 moves to the position A'
P ₁ is determined as P ₁ = (P×a)/b, and the tendency of the tangent line between the wheel 22 and the guide 23 at the position B and the contact point B' is tan ^-1 (F/P ₁ )= It is determined as tan ^-1 F/(P×a)/b.

In this way, the guide 23 at each position of movement of the wheel 22
The tendency of the tangent line at each point of contact with the guide surface 23a is determined, and the guide surface 23a of the guide 23 is formed in a curved shape that is equal to or close to the tendency of the tangent line.

Note that in the above description, the influence of the resistance of the wheels 22 is ignored for the sake of simplicity. In actual design, it is necessary to take these into account when determining the curve.

Here, FIG. 7 shows an example in which the guide surface 33a of the guide 33 is approximated by an arc of radius R based on the modification of FIG. 6, and FIG. 8 shows the guide surface of the guide 43 on the tongue rail 7 side. 43a as a straight line, the guide surface 25a of the guide 25 on the lower frame 14 side
This is an example in which the curved line is curved in an arc shape as in FIG. 7. If the modified examples shown in FIGS. 6, 7, and 8 are constructed, the wheels 2 will move as the push rod 16 advances as in the embodiment shown in FIG.
The point of force for flipping up the tongue rail 7 of No. 2 moves toward the tip of the tongue rail 7, and at the same time, the wedge effect increases due to the influence of the flip-up angle of the tongue rail 7, so that the further the push rod 16 advances, the more the pushing force increases. It is unreasonable to say that there is a surplus of force when the push rod 16 is moved forward from the most retracted position. ,
The tongue rail 7 can be raised smoothly and rationally using a drive device with a small capacity.

FIG. 9 shows another embodiment of the present invention, in which a plate-shaped positioning member 50 is protruded from the lower side near the tip of the push rod 16, and the push rod 16 is moved to lower the tongue rail 7. When the vehicle moves backward, the positioning member 50 enters a receiver 51, which is installed on the ground and has a U-shape in plan, for example, and it can be confirmed that the tongue rail 7 is in the correct position with respect to the vehicle lead-in line rail installed on the ground. It becomes like this.

As explained above, the tang rail flip-up device of the present invention does not require any component parts to protrude from the top surface of the traverser, and uses a wedge effect for the tang rail flip-up force, so it takes up a large amount of space in the vertical direction unlike conventional devices. It can be constructed without any difficulty even without taking the weight of the tongue rail, and the weight of the tongue rail is not restricted too much, resulting in a very practical effect.

[Brief explanation of the drawing]

FIG. 1 is a schematic external view of a traverser with a tongue rail, FIG. 2 is a sectional view of a conventional tongue rail flip-up device, FIG. 3 is a plan view of the conventional example, and FIG. 4 is a diagram of a tongue rail flip-up device of the present invention. 5 is a plan view of FIG. 4, FIG. 6 is a basic functional diagram for explaining a modification of the present invention, and FIGS. 7 and 8 are each constructed based on FIG. 6. FIG. 9 is a sectional view showing another embodiment of the invention. 2...Traversa, 7...Tangrail, 8...
...End girder, 12...Horizontal beam, 13, 23, 33, 4
3...Guide, 13a, 23a, 33a, 43a
...Guide surface, 14...Frame, 15, 25...
...Guide, 25a...Guide surface, 16...Push rod, 21, 22...Wheel.

Claims (1)

[Claims] 1. A guide is provided below the tongue rail rotatably supported on the end beam of the traverser, and a frame is provided below the tongue rail from the end beam, and a guide is provided on the frame, A push rod is provided that penetrates into the end girder and can be driven forward and backward, and a wheel is provided at the tip of the push rod that enters in a wedge shape between the upper and lower guides to flip up the tongue rail as the push rod moves forward. The traverser is characterized in that at least one guide surface of the upper and lower guides on which the wheels are in sliding contact is formed into a smoothly curved curved shape in which the distance between the upper and lower guide surfaces narrows as it goes in the advancing direction of the push rod. Tang rail flip-up device. 2. The traverser tongue rail flip-up device according to claim 1, wherein the push rod has a positioning member that moves together with the push rod and fits into a receiver on the ground side when the tongue rail is lowered.