DE1925192A1 - Tow truck conveyor system - Google Patents

Description

AMERICAN CHAIN & CABLE COMPANY, INC
New York, New York, V * St.A.

Tow truck conveyor system

The invention relates to conveyor systems and in particular to tow truck conveyor systems *

It is known to provide a conveyor system with a tow truck, which have drag pins which engage a chain down into slots forming a track in the sod extend the ground, thereby pulling the tugs along the ground * When handling such tugs it is It is also common practice to provide branch tracks and switch tongues to divert the tow cars to the branch tracks *

The present invention aims to provide a simple, inexpensive system for actuating the switch tongue in response to signals from the tow truck available, the system having a minimum of parts , being easy to maintain , taking up a small vertical space in the ground and a has a long service life *

The invention is to be explained in more detail using an exemplary embodiment with reference to the accompanying drawings, In these show)

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Pig. 1 shows a partial plan view of a system according to the invention;

FIG. 2 is a partial view, similar to that of FIG. 1, of a modified one System with the file in a different position;

3 is a partial vertical view of the installation;

4 shows a view according to FIG. 1 on an enlarged scale, with parts broken away;

5 shows a sectional view on an enlarged scale along the line 5-5 in FIG.

6 is a longitudinal sectional view on an enlarged scale the line 6-6 in Figure 4; and

FIG. 7 is a sectional view taken along line 7-7 in FIG. 4.

According to Figure 1, the system according to the invention comprises a slot 11 provided in the floor 10 which forms the main conveyor track and a slot 12 which intersects the slot 11 and constitutes a branch track Towing car 13 comprises a towing pin 15 'which extends down through the slot 11 into engagement with a trolley which is attached to a chain 17 which is driven in a manner not shown.

In the area of the connection between the main track 11 and the branch track 12, a switch tongue 18 is provided * As FIGS. 4 and 7 show, the switch tongue 18 is provided with a tube 19 which

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is pushed over a fixed ¥ elle 20, which is between a base plate 10a and a frame or housing 21 extends ^ On the tube 19 a pawl lever 22 is attached.

The pawl lever 22 is resiliently urged in a direction to move the switch tongue to a position in which it derives a drag pin 15 by a spring 23 'attached to one end of the pawl lever 22 and at the other end to a bearing 24 , which is attached to the housing 21. The switch tongue 18 is normally held out of the position in which it would derive a towing pin of a tow truck by means of a plurality of pawls 25 which are articulated on a shaft 26 which is fixed to the housing 21 and which extends perpendicularly. Each pawl 25 has a groove 26 ¹ which engages a roller 27 on the pawl lever 22. The rollers 27 are rotatably mounted on a bolt 28 which extends vertically upwards from the ratchet lever 22 (Figure 7). Each pawl 25 is urged against the roller 27 of its corresponding pawl lever 22 by a spring 25a which is connected at one end to the pawl 25 and at the other end to the housing 21.

From Figures 2, 4 and 5 it can be seen that each pawl 25 a signal reading element 29 is assigned. Any signal reading element is hinged to a bracket 30 which is attached to the housing and is intended to be moved upwards and backwards to pivot in the position as shown in Figure 5 with broken

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Lines is shown »through an opening 32 in the base plate 10a in the cream of the signal element 33 on the tow truck. Each signal reading element 29 is urged into the downward and forward position in the floor by a tension spring 34 which is fastened at one end to the signal reading element 29 and at the other end to the bracket 35 on the housing 21 --.- ;, Sin Cable C is attached at one end of the pawl 25 by an .i-sbel 36 and at the other end to its corresponding signal reading element 29 at 37 · Each cable 0 is over in pairs of rollers 38, 39 drawn, which are mounted on brackets 40, 41 which are attached to the frame 21 for rotation about perpendicular axes. Each cable C is further drawn over a pulley 2 which is rotatably mounted on a bracket 43. A vein 36a is connected to the one end to the lever 36 and to take it to the other with the housing 21, any slack in the van Abel C,

As FIGS. 4 and 6 show, all rollers 38 are mounted on a single bracket 40. In the same way, all the rollers 39 are mounted on a single bracket 41. As shown in Figures 1 and 4, the signal elements are provided side by side in one of many positions P, as shown in broken lines in Figure 1,

To lift a signal reading element 29 into the path of the Sehleppvagens when it approaches the area of the connection between the main path and the branch path, a lever 44 is around a

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Axis arranged so that it can pivot on a bolt 45 and extends in the direction of the movement of the towing vehicle for a pivoting movement in and out of the path of the towing pin, as he moves in the SGhlitz 11. An idler roller 45 for each saber C is mounted on a bracket 46 on the lever 44 » The extension R of each cable C between its rollers 38, 39 is adjacent to the idler roller in question 45 ·

The lever 44 is normally in the path of the towing pin 15. When a tow truck approaches and its towing pin 15 grips the lever 44, the lever is swung sideways or downward as shown in Figure 4 to bring the pulley into contact with the cables bring and apply a voltage to the cables in order to lift the signal reading elements 49 into the position shown in broken lines according to FIG correspond to the tow carriage, the signal reading elements 39 are taken Uncl · downwardly and forwardly pivoted "This movement of the signal reading means 29 performs a train to the cables 0 to the latch member 25 out of contact with the rollers 27 on the ratchet lever 22 to pull so that the ratchet lever 22 is released and the spring 23 can pivot the switch tongue 18 into the path of the sole pulling pin, the S tow truck (Figure 1) is derived · If the signal elements 33 on the tow truck are not appropriate, sB · if only one of a number of signal «reading elements-

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SAD ORIGINAL

ten is taken or none, at least one of the remains Pawls 25 in contact with the pawl lever 22 so that the switch tongue is not actuated *

In order to prevent the tow car from being diverted into a branch slot 12 su, in which a car is already located, is a Brake system is provided which includes a brake pawl 50 which is articulated on a shaft 26 and has a hat which with one of the rollers 27 on the ratchet lever 22 in sing-engagement comes · The brake pawl 50 is normally held out of single grip with its corresponding role by a 3? eder 51, which is operated via a lever 52 "If, however, a tow truck is present in a branch slot 12, engages its Schlettpstift the lever 52 in the slot 12, whereby a train to the Cable 531 that is pulled over the roller 54 is exerted to urge the pawl 50 into engagement with the pawl lever 22, whereby the pawl lever 22 is prevented from moving and thus in turn the switch tongue from moving into the Ab « control position «

In the embodiment of the invention according to Figure 2 there are two additional signal reading elements 29 * and associated pawls 25, Pulleys and cables are provided on the other side of the slot 11. This allows a greater combination of signal settings of the signal elements 33 on the tow truck.

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19251S

Although, the principle of discovery in connection with a
XFnterfloor conveyor system has been described, it can also be used for conveyor systems with top-side drive or free
! Conveyor systems that have main and branch lines with assigned sections »

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Claims (1)

Patent claims 1. Tow truck conveyor system with main and branch tracks lengthways whose carriages are movable, are characterized by the combination • nation of a switching device in the connecting area of the main and branch line to move a car from the main line into to derive the branch line, a pawl to turn the switch w direction to hold in one of both positions, wherein a flexible element are connected to the pawl, at least one signal reading element which is movable in and out of the path of the carriage, wherein the flexible element is connected to the signal reading element, one Means in the path of the carriage, which can be actuated by the approach of a carriage, in order to apply tension to the flexible element and to move the signal element into the path of the carriage, with signaling devices on the carriage in corresponding arrangement with the signal reading element in operation come and apply further voltage to the flexible element to trigger the latch device and allow the switching device to move to the other position, 2, system according to claim 1, characterized in that the signal reading element can be moved in such a way that it swings backwards / outwards into the path \ mä forwards out of the ball of the wagon » OHiQINAL H09848 / 103? 3 · Appendix after. Claim 1 or 2, characterized by a Multiplicity of signal reading elements and individually each . Flexible element with pawl assigned to the reading element, 4. Plant according to one of claims 1 to 3, characterized in that that the means in the path of the carriage for imparting tension to the flexible element is a part which is hinged adjacent to the track and is normally pivoted into the track of the car " 5 · Plant according to claim 4, characterized in that the flexible element has an area which extends over a Pair of roles extends and that one role with the area of the flexible element comes into contact in order to apply tension to it 6 »System according to one of claims 1 to 5, characterized in that that a braking element can be actuated by the ratchet device and that the braking element with the carriage comes into engagement in the branch path to release the To prevent latch mechanism * 7 · Installation according to one of claims 1 to 6, characterized by a device ^ which resiliently urges the signal reading element out of the path of the carriage _s System according to one of the 4r # py # Q & gy :: I to 75 in that a JlnrlßhtuiH; yorg © see iat, the ili-v 909848 / in: r / 8AD ORIGINAL ■ - ίο - brings the keneinrichtung resiliently into engagement with the latch » 9 · Plant according to one of claims 1 to 8, characterized in that that the switching device comprises a switching tongue which is rotatable in the area of the connection between the main and branch tracks is arranged that the switching device switching element © which are pivotably provided on the switch tongue and come into engagement with the latter, and that springs resiliently urge the switch tongue into one of the positions to bring the pawl into engagement with the switch tongue. keep" 10 «Installation according to one of claims 1 to 9», characterized in that the switching device is arranged under the floor is in that the track is provided as a slot, wherein the conveyor drive is under the floor. 11. Plant according to claim 10, characterized in that iss Signal reading element is movable in such a way that © & up and back into the path of the tow car and down and forward out of the path of the tow car pivots. 12. System according to one of claims 1 to 11 _S characterized Keiobnetj that a large number of voä 3igaal °> Iieseeleme: at © n arranged since Lich adjacent to the path of the car is £ and that a. Llö ^ LtileiJ Jlerneut -und an Osakas © lar I elrfeuiig individually / -j η ij> ij ^{1 % lä 3} ßAD ORIGINAL - 11 is assigned to each signal reading element « 13 · Appendix after. Claim 12, characterized in that at least a signal reading element is arranged on the opposite side of the main track. 909848/103 Empty soap