JP4637875B2 - Crank device for convertible lock device - Google Patents

Description

  The present invention relates to a crank device for a convertible lock device that can be installed without recombination of elements such as a crank using means shared by installation to a branching device.

  The turnout, which is the most important railway facility, has an extremely long lead length with an increase in the speed of trains, for example. In a branching device having a lead length exceeding a certain distance, a switch adjuster placed at a fixed position and a second switch adjuster disposed at a certain distance from the switch adjuster are used. The switch adjuster that operates according to the operation of the electric switch is special between the switch adjusters because the first switch adjuster and the second switch adjuster must operate in the same way during the switching of the branching device. A simple link mechanism is incorporated.

  As shown in FIG. 14, the convertible locking device using the link mechanism includes a switch 101, a first switch adjuster 102, a rod 103, a right angle crank device 104, a link 105, and a link carrier device 106. An adjust link 107, an escape crank device 108, a second switch adjuster 109, and a rod 110.

  As shown in FIG. 15, the escape crank device 108 includes a driving crank 113 that rotates about the crankshaft 112 and an escape crank 115 that rotates about the crankshaft 114. As shown in FIG. 16, the right-angle crank device 104 has a crank 117 that rotates around a crankshaft 116. For example, the escape crank device 108 is provided with a lubrication system that sends lubricating oil around the crankshafts 112 and 114 so that the rotation of the driving crank 113 and the escape crank 115 can be maintained smoothly.

  Here, the function of the escape crank device 108 is to transmit only the center of the travel transmitted to the escape crank 115 to the second switch adjuster 109, and to slide the escape surface of the escape crank 115 using the travel before and after that as play. Even if there is some change in the travel transmitted to the escape crank 115, only the amount of sliding on the escape surface changes, and even if the second switch adjuster 109 is not adjusted, the contact with the Tongleil is to a certain extent. It is intended not to affect the.

  When installing a switch for a turnout, means such as a switch adjuster are not prepared as separate means for right installation on the right of the turnout and left installation on the left of the turnout. It is desirable to use a method suitable for both right installation and left installation, which is used by appropriately recombining each time. For example, the escape crank devices that are widely used at present have succeeded in making a way to achieve common use by limiting the elements to be reconfigured to some means such as a crank.

  However, even if only a part of the method to achieve sharing by recombination is implemented, installation to a branch device with a long lead length requires a considerable number of elements to be recombined in the entire conversion lock device. It takes a long time to complete.

  An object of the present invention is to provide a crank device for a convertible lock device that can be installed on a branching device without using a common means to change the components of the crank or the like.

  A crank device according to the present invention includes a hollow base having a plurality of openings, and a driving crank and a driven crank that are rotatably provided on each pivot disposed in the base and in proximity to the openings. It is formed symmetrically with respect to the central axis.

  In the installation of the crank device to the branching device, the positions of the driving crank and the driven crank in the right installation and the left installation are reverse to the normal positions in the left installation if the right installation is assumed to be the normal position. In the present invention, when the base is formed symmetrically with respect to the central axis and is assembled while being inverted in accordance with the branching device to be installed, the internal structure is vertically inverted together with the base every time it is inverted. At this time, since the driving crank and the driven crank inside the base are changed to positions where they can be assembled to the counterpart link, it is possible to save the trouble of rearranging the elements, and the crank device can be installed without taking time.

  A crank device different from the above includes a hollow base having an opening, and a crank that is pivotally disposed on a pivot disposed close to the opening of the base and has a plurality of crank arms. It is formed symmetrically.

  In the installation of the crank device to the branching device, if the right installation and the left installation are set to the right position, the left installation will be the reverse of the normal position. In the present invention, the inner structure is vertically inverted together with the base every time the base is inverted by the base formed symmetrically with respect to the central axis. At this time, since the crank inside the base is changed to a position where it can be assembled to the counterpart crank, it is possible to save the trouble of reassembling the elements, and the crank device can be installed without taking time.

  An embodiment of a crank device according to the present invention will be described with reference to the drawings. In addition, this Embodiment is an application example with respect to a convertible lock apparatus. As shown in FIG. 7, the convertible locking device includes a switch 1, a first switch adjuster 2, a right angle crank device 3, a link carrier device 4, an escape crank device 5, and a second switch adjuster 6. Is provided. The switch 1 is a so-called electric switch, and has a built-in motor and generates power to drive the first switch rod 7 that connects the Tongrel T and the Tongrel T. The switch machine 1 is connected to the first switch adjuster 2 via a rod 8. The first switch adjuster 2 adjusts the travel of the turning machine 1 to the stroke of the Tongrel T and presses the Tongrel T against the basic rail with a constant pressure. In the present embodiment, the first switch adjuster 2 cooperates with another second switch adjuster 6 that plays the same role. The first switch adjuster 2 is connected to the SA link 10 via a joint 9 attached to the tip of the rod 8 (see FIG. 8).

  The right-angle crank device 3 includes a crank 11 that changes the moving direction of the link operation. The crank 11 is connected to the SA link 10 and is connected to the link carrier device 4 via the link 12. The link carrier device 4 supports the middle of a long link and eliminates the play of link motion. The link carrier device 4 is connected to the escape crank device 5 via an adjustment link 13. The escape crank device 5 includes an escape crank 14 that changes the moving direction of the link operation. Even if the travel transmitted to the second switch adjuster 6 is changed by the escape crank device 5, only the center of the travel is transmitted, and the escape surface is slid by using the travel before and after that as a play, and transmitted to the escape crank 14. Even if there is a change in the travel distance, it is possible to prevent the close contact of the Tongrel T.

  The escape crank device 5 is connected to the second switch adjuster 6 via a rod 15 (see FIG. 9). A second rolling rod 16 is disposed in parallel with the second switch adjuster 6 and can drive the Tongleil T. The travel transmitted by the second switch adjuster 6 can be matched with the travel of the Tongrel T, and at the same time, the Tongrel T can be pressed against the basic rail with a constant pressure. In the figure, reference numeral 17 denotes a front rod, and reference numeral 18 denotes a connecting rod.

  As shown in FIGS. 1A and 1B, the escape crank device 5 includes an escape crank 14. The escape crank 14 can rotate about the first crankshaft 19 and is in contact with a driving crank 21 that rotates about the second crankshaft 20 via a roller 22. The escape crank 14 has an escape surface 24 on which a roller 22 that rotates about a roller shaft 23 slides. The roller 22 of the present embodiment is made of oilless metal having self-lubricating properties, and an oil film can be formed on the roller shaft surface without supplying lubricating oil from the outside.

  The escape crank device 5 includes a hollow base 25 that houses the escape crank 14 and the driving crank 21. The hollow base 25 is formed symmetrically with respect to the central axis c (see FIG. 2). The base 25 has a first opening 25a (see FIG. 3) for passing the escape crank 14 from the outside, and a second opening 25b (see FIG. 3) for passing the driving crank 21. In order to enable reversal in the assembly of the escape crank device 5, the center of the escape crank 14 is accurately positioned so as to match the center axis c of the base 25, as shown in FIG. Similarly, the center of the driving crank 21 is accurately positioned so as to match the center axis c of the base 25.

  Bushings 26 are mounted around the first and second crankshafts 19 and 20, respectively. The bush 26 is formed of oilless metal having self-lubricating properties, and an oil film can be formed on the crankshaft surface without supplying lubricating oil from the outside. Further, the upper and lower ends of the first and second crankshafts 19 and 20 are supported by a pair of bearings 27 fixed to the base 25. The base 25 is fixed to the sleeper described later by four bolts 28.

  On the other hand, the base 25 has a window 29 (see FIG. 3) for confirming crank operation. Two windows 29 are provided according to the operating region of the drive crank 21. In addition, the base 25 includes a lid 30 (see FIG. 1B) formed in accordance with the two windows 29. The lid 30 has a bonnet pin 31 on the upper surface, and the lid 30 can be opened by holding the bonnet pin 31. Further, a protection plate 32 provided in the operation area of the drive crank 21 is provided. The protection plate 32 is fixed to a second fixing base (described later) by two bolts 33. Further, a cover 34 is provided so as to cover the escape crank 14. This cover 34 is fixed to the base 25 by two bolts 35.

On the other hand, as shown in FIG. 4, the escape clamp device 5 that works as a locking device together with the turning machine 1 includes a first fixing base 36, a wedge 37, and a second fixing base 38. The first fixed base 36 is disposed with one end abutting against a stepped portion formed in the sleeper S and the other end abutting against a wedge 37. The wedge 37 is fixed by a bolt 39 and a nut 40 attached to the first fixing base 36. The second fixed base 38 abuts one end on the base 25 and the other end abuts on another stepped portion formed in the sleeper S. The second fixing base 38 is fixed to the sleeper S by two bolts 41.
By such means, the base 25 restrains the mutual movement at the part in contact with the other party through the first fixed base 36, the wedge 37, and the second fixed base 38, so that the lock after conversion is more stable. Can be kept in.

  Further, as shown in FIGS. 5A and 5B, the right-angle crank device 3 includes a crank 11. The crank 11 can rotate around a crankshaft 43 fixed to the base 42, and has two crank arms 44 that open at an angle of approximately 90 °. The base 42 is formed symmetrically with respect to the central axis c (see FIG. 6). The base 42 has an opening 42a for allowing the crank 11 to pass from the outside. In order to enable upside down in the assembly of the right angle crank device 3, the center of the crank 11 is accurately positioned so as to match the center axis c of the base 42 as shown in FIG.

  A bush 45 is mounted around the crankshaft 43. The bush 45 is made of oilless metal having self-lubricating properties, and an oil film can be formed on the crankshaft surface without supplying lubricating oil from the outside.

  The base 42 is fixed to the sleeper (not shown) by two bolts 46. Further, the crank 11 includes a cover 47 that is mounted so as to cover the two crank arms 44. This cover 47 is fixed to the base 42 by two bolts 48.

  On the other hand, as shown in FIGS. 10A and 10B, the link carrier device 4 includes a link holder 49. The link holder 49 has a hole 50 through which the link 12 passes. The link holder 49 includes a pair of rollers 51. The pair of rollers 51 can rotate about the roller shaft 52 and are in contact with the link 12 and supported from both sides in the left-right direction. The roller 51 of the present embodiment is made of a fluororesin having a low friction coefficient, and can be used for a long time without supplying lubricating oil from the outside.

  The roller shaft 52 is configured to abut against a shaft restraint 53 that pushes the roller shaft in the axial direction, and to fasten and fix the cap nut 54. The roller shaft 52 is accurately positioned on the link holder 49 using two pins 55. The link holder 49 is fixed on the sleeper with a bolt 57 via a spacer 56. An insulating plate 58 is interposed between the spacer 56 and the link holder 49, and an insulating tube 59 and an insulating collar 61 are mounted on the lower side of the collar 60 around the bolt 57 to electrically insulate the link carrier device 4. is doing.

  In addition, the link carrier device 4 includes a roller cover 62 that is mounted so as to cover the pair of rollers 51. The roller cover 62 has a bonnet pin 63 on the upper surface, and the roller cover 62 can be easily opened by holding the bonnet pin 63.

  The present embodiment is configured as described above. When the motor of the switch 1 is started, the rod 8 of the first switch adjuster 2 is moved, and the first switch rod 7 is driven. The movement of the rolling bar 7 moves the tongrel T to contact one surface of the basic rail. The rod 8 moves in the same direction as the first rolling rod 7 moves, and the SA link 10 rotates the crank 11 of the right-angle crank device 3. As the crank 11 rotates, the link 12 on the link carrier device 4 moves leftward in FIG. 7, and the adjustment link 13 moving in the same direction rotates the driving crank 21 of the escape crank device 5.

  As the driving crank 21 rotates, the rod 15 of the second switch adjuster 6 moves via the escape crank 14 and the second rolling rod 16 is driven. The movement of the second rolling bar 16 moves the tongrel T to contact one surface of the basic rail.

  For example, in the right installation as shown in FIG. 7, the escape crank device 5 is arranged on a diagonal line extending from the rolling machine 1. At this position, the drive crank 21 is connected to the adjustment link 13 and the escape crank 14 is connected to the rod 15 for assembly. Further, in the left installation as shown in FIG. 11, the escape crank device 5 is arranged on a diagonal line extending from the tipping machine 1. At this position, the driving crank 21 is similarly connected to the adjustment link 13, and the escape crank 14 is connected to the rod 15. Connect and assemble.

  At this time, if the escape crank 14 is set to the normal position at the right installation position, the left installation is the reverse arrangement of the normal position, and the internal structure of the escape crank 14 is turned upside down together with the base 25. In the conventional escape crank device, the case itself is a means that is not suitable for upside down. Therefore, it is indispensable to reassemble the escape crank by reversing it.

  In the present embodiment, the base 25 is formed symmetrically with respect to the central axis c enabling upside down, and the base 25 is merely rotated 90 ° with respect to the central axis c in both the right installation and the left installation. Thus, the escape crank device 5 can be installed at a predetermined position.

  As shown in FIG. 12, the assembly procedure is described. As shown in FIG. 12, the base 25 is rotated 90 ° counterclockwise in the drawing and the bolt 28 is inserted into the base 25 and fixed to the sleeper while maintaining its position. To do. In this process, the escape crank 14 and the drive crank 21 in the base 25 are not touched. Thereafter, the cover 34 is attached to the base 25. On the other hand, in the left installation, the base 25 is rotated 90 ° clockwise in the drawing, and the bolts 28 are inserted into the base 25 and fixed to the sleepers while maintaining the position. During this time, the escape crank 14 and the drive crank 21 in the base 25 are not touched. Thereafter, the cover 34 is attached to the base 25.

  The base 25 formed symmetrically in this way can save time and effort for rearranging the escape crank 14 and the driving crank 21 and the escape crank device 5 can be installed without taking time.

  Further, according to such an escape crank device 5, the lubricating oil is kept around the crankshafts 19 and 20 by the self-lubricating bushes 26 attached to the crankshaft 19 and the crankshaft 20, and an oil film is stably formed there. Can be formed. Further, the lubricating oil is maintained around the roller shaft by the roller 22 having self-lubricating properties, and an oil film can be stably formed.

  On the other hand, in the right angle crank device 3, in the right installation shown in FIG. 7, the right angle crank device 3 is arranged on a straight line extending from the turning machine 1. At this position, the crank arm 44 of the crank 11 of the right-angle crank device 3 is connected to the SA link 10 and the other crank arm 44 is connected to the link 22 for assembly. In the left installation shown in FIG. 11, the right-angle crank device 3 is arranged on a straight line extending from the rolling machine 1. Similarly, at this position, the crank arm 44 of the crank 11 of the right-angle crank device 3 is connected to the SA link 10 and the other crank arm 44 is connected to the link 22 for assembly.

  In the right installation and the left installation, if the right installation is set to the normal position, the left installation is the reverse of the normal position, and the internal structure of the base 42 is inverted upside down. In the present embodiment, the base 42 is formed symmetrically with respect to the central axis c that enables upside down, and the base 42 is only rotated 90 ° with respect to the central axis c in both the right installation and the left installation. The right-angle crank device 5 can be installed at a predetermined position.

  As shown in FIG. 13, in the right installation, as shown in FIG. 13, the base 42 is rotated 90 ° clockwise in the drawing and the crankshaft 43 and the bolt 46 are inserted into the base 42 while holding the position. Fasten to the frame. In this process, the crank 11 in the base 42 is not touched. Thereafter, the cover 47 is attached to the base 42. On the other hand, in the left installation, the base 42 is rotated 90 ° counterclockwise in the figure. While maintaining the rotated position, the crankshaft 43 and the bolt 46 are inserted into the base 42 and fixed to the sleeper. During this time, the crank 11 in the base 42 is not touched. Thereafter, the cover 47 is attached to the base 42.

  The base 42 formed symmetrically in this way can save time and labor for rearranging the crank 11 and the like, and the right-angle crank device 3 can be installed without taking time.

  Further, according to such a right-angle crank device 3, the lubricating oil is maintained around the crankshaft 43 by the self-lubricating bush 45 attached around the crankshaft 43, and an oil film can be stably formed on the crankshaft surface. it can.

1 shows an embodiment of an escape crank device for a convertible lock device according to the present invention, wherein (a) is a plan view of the escape crank device and (b) is a front view of the escape crank device. It is a figure which shows the central axis of the base for escape cranks shown by FIG. It is a perspective view of the base for escape cranks shown by FIG. FIG. 2 is an elevational view of the escape crank locking device shown in FIG. 1. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows an embodiment of a right angle crank device for a convertible lock device according to the present invention, wherein (a) is a plan view of the right angle crank device and (b) is a front view of the right angle crank device. It is a figure which shows the central axis of the base for cranks shown by FIG. 1 is a plan view of a convertible locking device having an escape clamp device and a right angle crank device according to the present invention. FIG. FIG. 8 is a front view of the first switch adjuster shown in FIG. 7. It is a front view of the 2nd switch adjuster shown by FIG. The link carrier apparatus by this invention is shown, (a) is a front view of a link carrier apparatus, (b) is a side view of a link carrier apparatus. 1 is a plan view of a convertible locking device having an escape clamp device and a right angle crank device according to the present invention. FIG. It is explanatory drawing which shows the assembly method of the escape crank apparatus which concerns on this invention. It is explanatory drawing which shows the assembly method of the right angle crank apparatus which concerns on this invention. It is a top view which shows an example of the conventional conversion lock device. It is a top view which shows the conventional escape crank apparatus. It is a top view which shows the conventional right angle crank apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Turning machine 2 ... 1st switch adjuster 3 ... Right angle crank apparatus 4 ... Link carrier apparatus 5 ... Escape crank apparatus 6 ... 2nd switch adjuster 11 ... Crank 14 ... Escape crank 21 ... Driving crank 22, 51 ... Roller 25 42 ... Base 26, 45 ... Bush 49 ... Link holder T ... Tongue rail S ... Sleeper

Claims (1)

A hollow base (25) having both end plates formed symmetrically with respect to the central axis (C) and a first opening (25a) and a second opening (25b) formed between the both end plates;
A drive crank (21) formed symmetrically vertically with respect to a central axis (C) rotatable about a crankshaft (20) provided between the both end plates of the hollow base (25);
A central shaft (C) that is rotatable about a crankshaft (19) provided between the both end plates of the hollow base (25) and that is in contact with the driving crank (21) via a roller (22). ) And an escape crank (14) formed symmetrically up and down,
The first opening (25a) in the escape crank (14),
The second opening (25b) is arranged in the vicinity of the driving crank (21), and the hollow base (25) is turned upside down to install either the right installation or the left installation. Can also be used
A crank device for a convertible lock device.

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