JP2001180491A - Switch box for rail way/line switch and the like - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a switch box with simple structure and small size capable of safely and surely working in locking/lock switching and/or kicking(detach). SOLUTION: The switch box comprises driving units (M, 3, 4, 5, 5', 5", 5'", 6) for moving blades (A1, A1', A2, A2') of a switch, at least one linear transmitting means (12, 18, 120, 21, 24) for driving the blades, and movable means (24, 124) for locking the blades in respective closed position. Movable locking means (23, 24, 124) are automatically made an active locking status when the blades (A1, A2') are positioned in the closed position while the blades (A1, A2') are automatically released when the switch is driven for moving the blades (A2', A1) from the closed position to the opposite direction.

Description

DETAILED DESCRIPTION OF THE INVENTION

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a switch box for a railway, a track point, and the like. The switch includes a driving means for moving a switch blade and a blade driving operation. Having at least one linear transmission means and movable means for locking said blades in each closed position, said means being housed in a box, said box being essentially a sleeper size and shape And can be attached to railway tracks instead of sleepers.

2. Description of the Related Art Some switch boxes of this type are known, and International Application WO-94 / 27853 discloses a switch box of this type. However, in this switch box, only the driving means, the part for transmitting the operation linearly, and the part for locking the blade in a closed state are arranged in the box. A central slide housed in the box has a drive rod extending to actuate a blade outside the box. The location that locks the blade closed will act on the slide and not directly on the blade. On the other hand, there is no other means to release the blade. That is, the detachment of the blade from its locking means acts on the blade in a direction in which a preset force separates the blade.

Another example of a switch box of the type described first is disclosed in US Pat. No. 4,093,163, which combines two blades with a simple switch. In this example, the rod connected to the blade is housed in a box in the form of a sleeper, while neither switching lock nor disconnecting means are provided.

DISCLOSURE OF THE INVENTION The present invention provides a switch box of the first-mentioned type for railways, railway points and the like, in which a lock-lock switch for a general switch box is provided. And / or kick (disconnect)
With respect to, means for ensuring one or more or all functions are provided in the box. The elements are movable and, with the exception of the blades, are assembled in the sleeper box. They are extremely simple structures,
With smaller dimensions, maintaining the required storage volume,
Safe and reliable operation is possible.

[0005] In particular, in the switch box intended by the present invention, movable means for locking the blade in a closed position is provided.
It is composed of a linear transmission unit for operating operation and an actual blade, thereby achieving the safest and most reliable operation of the switch box.

It is a further object of the present invention to provide a switch box of the type described at the outset, in which so-called British style points have been modified in several places.

The present invention achieves the above object with respect to a switch box of the type described at the outset, wherein the switch box is provided with movable locking means for locking the blade in each closed position. Wherein the movable locking means is located within the box within the range of the blade in association with each blade and automatically locks actively when the blade reaches the closed position, while closing the blade. When the switch is driven to move away from the position, the movable locking means automatically unlocks.

The switch box has a linear transmission means formed by saddles, slides, etc., and is moved laterally with respect to the track, in particular at right angles to the track, to convert a rotary movement into a linear movement. Moving between the end positions by the part,
A transmission rod is connected to each of the two blades, and
Each blade is connected to a lever, which connects the blade to each transmission rod means and to corresponding movable means for locking the blade in a closed position.

In particular, the connecting lever of the blade corresponding to the transmission rod forms a movable locking means of the blade.

In a preferred embodiment of the invention, the connecting levers pivot and have a lateral hook at the tip opposite the fulcrum, and each connecting lever is pivoted about a vertical axis by a joint. Movably connected to the corresponding blade, the joint means is preferably a ball joint, while each of the connecting levers engages a fixed stop near the blade and engages with each of the levers. Means for adjusting the angular position of the connecting lever are provided between the transmission rod and the connecting lever engaged with the blade at startup in at least the closed position during operation of the switch. The connecting lever is released from the fixed stop, after which the blade in the closed position moves away from its corresponding rail so that one of the two blades is in the closed position. Extract, the corresponding coupling lever is moved angularly, the end hook is engaged with the rear end of the corresponding stationary stop.

Preferably, the means for adjusting the connecting lever angle is constituted by a slot or a notch groove to form an adjusting track formed on the transmission rod, and at least one protrusion on the track includes the connecting lever. Are provided on opposing surfaces.

A pivot shaft of the connecting lever is provided at a portion connecting the lever to the corresponding blade, while the connecting lever is provided between two lateral guides oriented in the moving direction of the transmission rod. And extends toward the corresponding rail beyond the blade.

According to yet another feature of the invention, the connecting lever is moved relative to the transmission rod, particularly at the beginning or end of the drive stroke of the transmission rod, in the engagement position of the fixed stop member. And a release position.

In a particularly preferred configuration, the transmission rod has an angled groove or slot slidably engaging at least one drive pin of the corresponding coupling lever; each said angled groove or slot is Parallel to the average vertical axis of
A portion extending laterally from the longitudinal axis, the portion extending toward the free end of the transmission rod and extending up to about the average longitudinal axis of the transmission rod or in a lateral dimension of the transmission rod. A means for engaging a lateral hook of the connecting lever; and a stopping means for pivoting the connecting lever, the stroke portion of the connecting lever being pulled by the transmission rod. The projection in the hook of the connecting lever and the stopping means for engaging the hook of the connecting lever and limiting the swing during the stroke. In the first stretched state of the drive stroke, the transmission rod is connected to the coupling rod by the position and shape of the slot, as long as the coupling lever in the engaged state is coupled to the blade closed in the initial state. For the lever The connecting lever is released from the stopping means, while the connecting lever in the disengaged state is connected to the blade to be closed, whereby the connecting lever is limited in angular movement by the stopping means, The protrusion protruding from the connecting lever near the hook and engaging the angled slot is located at a midpoint of the inclined portion of the slot, so that each of the slots pivots in the direction in which the blade moves. The inclined wall restricts the swing of the connecting lever connected to the blade to be closed by the lateral guide, so that the corresponding connecting lever can be moved together with the rod, and the blade is moved. When in the closed state, the connecting lever is released from the means limiting its angular movement and the connecting lever is further swung into engagement with the corresponding stop.

[0015] Preferably, each said transmission rod has a second slot, said second slot being substantially parallel and coincident with the average longitudinal axis of said transmission rod, said second slot being connected to said corresponding connecting lever or the like. A provided pin is fitted, the pin is movable along the second slot, and the pin connects the connecting lever to the blade in response to the angular movement of the connecting lever, for example, It is coaxial with the means being a ball-type joint.

In accordance with yet another aspect of the invention, a transmission rod is coupled to a common rod holding saddle, the rod holding saddle being movably supported in a direction substantially perpendicular to the axis of the transmission rod. The holding saddle is fixed to the drive slide, while the transmission rod is connected to the rod holding saddle by a movable coupling means, so that when the movement resistance of the blade exceeds a predetermined torque or in the direction to directly move the blade. When a force is applied, the movable coupling means is released from the rod holding saddle and the drive slide, and the transmission rod is pressed against the rod holding saddle against a predetermined torque connecting the transmission rod to the rod holding saddle. Move against the saddle.

In particular, the rod-retaining saddle has a plurality of rollers that slide in guides integral with the drive slide, the rollers being supported by springs that move transversely to the roller axis, while The roller is in contact with the inclined surface of the roller rolling wall provided on the rod holding saddle, and the inclined surface is provided at two places, and are inclined symmetrically to each other with respect to the sliding direction of the rod holding saddle, Each of these inclined surfaces corresponds to each roller of the rod holding saddle.

Preferably, the rod-retaining saddle is mounted integrally with the drive slide in an upper guide, the drive slide being movable at right angles to the axis of the track, and two rod-guiding saddles for guiding the rod-retaining saddle. Having opposing vertical lateral walls,
On the side wall, two opposing isopod trapezoidal projections are provided. On the other hand, the rod holding saddle is provided with two support springs fixed to each other with the transmission rod interposed therebetween. A roller rotating about a vertical axis is provided at the free end thereof, and the vertical roller is positioned at the end of the corresponding inclined surface with respect to the guide vertical lateral wall while the rod holding saddle is engaged with the drive slide. The length of the support spring is selected so as to be located outside the support spring.

In combination with the above arrangement, according to the invention, for the drive slide, movable locking means are provided at both ends of the stroke where one or more of the blades are closed.

Preferably, unlocking oscillating means is provided, said oscillating means being associated with means for connecting said drive slide to a linear drive actuator, means for connecting said drive slide to said linear drive actuator. The first stroke of is performed before connecting the linear drive actuator and the drive slide, during that first stroke,
The drive slide is unlocked.

The invention also relates to a so-called British switch having more than the four or more blades described at the outset, wherein only the outer two blades are provided with said movable locking means, The inner blade is locked in a closed position with the outer blades (A1, A2 ') when the outer blade is closed by a rigid member link such as a connecting rod.

The present invention further has features and configurations that are the gist of each claim. BRIEF DESCRIPTION OF THE DRAWINGS The features of the invention and its convenience are clearly set forth in the following description of an embodiment, which illustrates the main points of the claims in the accompanying drawings.

(Embodiment of the Invention) FIGS. 1 and 2 show a so-called English switch having four blades provided at an intersection. In the British switch, the two tracks have rails B1, B1 'and rails B2, B2', which are combined with blades A1, A1 'and blades A2, A2', respectively. Box 1 of almost the same shape and dimensions as the sleeper contains blade A1,
Means for moving A1 'and A2, A2' are accommodated.
The sleeper switch box 1 has fins 101 (FIGS. 15 and 16) that extend in the lateral direction and engage with the rails on the rail clips 2 of the rails B1, B1 ′, B2 and B2 ′. These fins are connected to rails B1, B1 ', B2, B
It has a head 102 that covers the 2 'foot. The remaining part, on the other hand, forms a tail that is clamped to the fin 101 by bolt means. One of the convenient configurations,
One or both of the opposing contact surfaces of the rail clip 2 and the fin 101 are provided with teeth or, more preferably, notches, parallel to the track longitudinal axis. This allows the two parts to better align with each other and to be properly clamped against relative movement between the fin and the rail clip 2.

The sleeper switch box 1 is dimensioned approximately corresponding to the sleeper, extends for a length outside the track, and in one of its outer extensions, an electric drive motor is generally housed. You. The motor is indicated by the symbol M. The motor M rotates and drives the threaded rod 3 by means of transmission by bevel gears 5, 5 '. The threaded rod 3 is a coupling 4
The coupling 4 is connected to the output shaft 5 "of the transmission means by any type. The coupling 4 may be of any type that is released under a stress state exceeding a predetermined torque, or may be of a clutch type.

It is also expedient to provide a manual actuation means in combination with the drive motor M, as shown in greater detail in FIG. The manual actuation means has a crank 6 with a shaft 106. At one end of the shaft 106, a bevel gear 206 meshing with the bevel gear 5 "" is provided. The bevel gear 5 "" rotates with the output shaft 5 "of the transmission means and is coaxial with the bevel gear 5 'connected to the motor. The two bevel gears 5 ', 5 "" are coaxial but of different dimensions, ensuring an appropriate transmission ratio for driving by the motor M and manual driving by the crank 6. The crank 6 is inserted through the opening 7 of the box 1 into a fitting position with the bevel gear 5 ″ ′ of the transmission means. The opening 7 is in the shape of a sleeve that supports rotation, and is provided with a lid 107. .

A nut 8 is inserted into the threaded rod 3, which is axially movably received and moves between two stop members 9 provided at the end of the first drive slide 12. The drive slide 12 is slidable in both longitudinal directions of the threaded rod 3 by a wheel 13 which contacts the bottom surface of the box 1. The nut 8 is connected to the slide body 11 by a radial key 10 so as not to rotate, so that the slide body 1
1 can reciprocate with respect to a drive slide (sliding body) 12 between both end stroke stop walls 9 (FIGS. 7 and 8).

Not only does the nut 8 move between the double-ended stroke stops 9, but it also moves more so that the blades A1, A2, and Al ', A2', between the two closed positions relative to the corresponding rail, Allow the blade to be transported. That is, at the beginning of each step in the operation of the switch, the nut 8 and the slide body 11 make some appropriate movement. With this movement, the locking means of the first drive slide 12 is released.

The drive slide 12 is provided with a wheel 13 and has a bottom 112 at the center with two notches 212 for engaging the locking teeth 14. The lock teeth are supported by the spring urging means 15 and are reliably pushed to the engagement position with the notch 212, and at least the notch 212
, At least one lateral side of the slide 12, preferably on both sides of the drive slide 12. The slide body 11 is provided with a pair of coaxial rollers 111 at positions protruding from both lateral sides thereof. The roller 111 engages with the cam track 116. Cam track 116
Is formed with two levers 16 having, for example, appropriate shapes at the lower vertical edges of the levers. Two levers 16
Oscillates and is centered on one another, identically shaped and mirror-symmetrical and pivots about the same axis 316, comprising two fixed members 6 arranged on both sides of the drive slide 12.
16 supported. Between the two members 616, the drive slide 12 is free to move during movement. The two pivoting levers 16 extend beyond the pivot 316 towards the center of the drive slide 12. The two swing levers 16 extend along both sides of the drive slide 12 to the slide body 11 and the nut 8.
On the opposite side of the nut 8, their rocking levers are
It ends with 16. Its head 416 engages locking teeth 14 projecting from both sides of the drive slide 12.

With such an overall configuration, the roller 111 of the slide body 11 connected to the nut 8 is engaged with the outer edge recess at the lower end of the lever 16 at the stroke end of the drive slide 12. As a result, the lock tooth that has been pressed is lifted and penetrates into the notch 212 of the drive slide 12 by the spring force. When the drive slide 12 moves in such an opposite direction, the nut 8 and the slide body 11 move a certain distance with respect to the drive slide 12. The roller of the slide body 11
Engage with the front edge protruding portion on the lower side of the swing lever. In this state, the pressing end of the swing lever 16 engaged with the tooth is
The teeth are pushed out of the notch 212 against the spring urging force. Thus, the drive slide 12 is movably released, and the nut 8 and the slide body 11 abut against the stroke end wall 9 and stop. And the drive slide 12
Starts to be driven or pushed. The leaf spring 15 associated with the tooth not only supports the tooth in a position engaging the notch 212, but also the roller 111
The lever 16 is pressed.

FIGS. 4 and 5 show the first stage of the movement of releasing the drive slide 12 by the nut 8 and the slide body 11. FIG. In FIG. 4, the drive slide 12 has reached the stroke end position corresponding to the leftward movement in the direction of arrow F1. By the movement of the drive slide 12 in the reverse direction indicated by the arrow F2, the nut 8 and the slide body 11 make the first idle movement, and abut against the wall 9 and stop. During this movement, the roller 111 is in contact with the protruding portion of the lower end 216 formed by the lever 16. As a result, the extension 416 acting on the tooth 14 pushes the tooth 14 out of the notch 212, the drive slide 12 is released and slides, and the nut 8 and the slide body 11 abut against the stroke end wall 9 and stop. Thus, as the nut 8 moves further along the threaded rod 3, the drive slide 12 moves in the direction of arrow F2.

The stroke end position of the drive slide 12 is
Determined by a fixed stop 60 integral with the bottom of the box. The fixed stop member 60 is moved to the axial extension 412 of the drive slide 12.
Is penetrating. The axially extending portion 412 is provided with a widened contact member 512 at an outer end which is a free end thereof. At the two stroke end positions, each of the two surfaces of the stroke stop member 60 abuts the widening abutment member 512 or abuts the leading end of the drive slide 12 provided with the extension 412.

A guide 19 is integrally superposed on the drive slide 12 by a vertical pin or another fixed joint 618 to hold the saddle 18 in which the rod moves integrally with the drive slide 12. The saddle 18 is slid by rollers 218 along the longitudinal side walls of the guide 19 in the box 1. The rod holding saddle 18 has a cylindrical shape, and its side wall has a trapezoidal planar shape, and both ends of each side wall 318 of the rod holding saddle 18 are provided with saddles 1 in symmetrical directions.
An inclined surface 518 that converges at the center of 8 is formed. At the center of the rod holding saddle 18, slide guides are provided on the bottom side and the top side, respectively. They are two-sided or one-sided guides 418, for example, forming a longitudinal groove or in the shape of one half of the groove. The end of the central rod 120 is accommodated in the groove. The center rod 120 is connected to the rod holding saddle 18 via a pair of holding springs 220. Each of the two holding springs has a central rod 120
Are connected to each other at positions that are mirror-symmetrical to each other,
Seen from above, it is approximately X-shaped, and is cut in half vertically by a rod 120. Each free end of the holding spring 220 has a roller 320. The holding spring 220 is sized so that each roller 320 engages the inclined surface 518 of the rod holding saddle 18. In particular, the roller 320
At the end of each holding spring 220, at the end of each side of the rod holding saddle 18, the holding spring is engaged with each inclined surface 518 on the holding spring side.

The center rod 120 is connected to the holding spring 22.
It is fixed to 0. The holding spring 220 has a substantially single wing shape, but is more precisely a bundle of a plurality of holding springs 220 in a tangential direction, and is fixed to the rod 120 by a lock clamp 420.

The center rod 120 is connected to the transmission rod 21 via joints 22 at both ends. The transmission rod 21 extends below the corresponding rails B1, B1 ', B2, B2'. The distal end portion 121 of the transmission rod 21 has, for example, a plate shape in the horizontal direction, and slides between the two lateral guide walls 23. At the distal end portion 121 of the transmission rod 21, a first elliptical slot 221 is formed on the upper surface, has a predetermined length, and is provided closer to the coupling 22 of the central rod 120 integrated with the rod holding saddle 18. A second angled oblong slot 321 is formed at an end at a predetermined distance from the first slot 221. The first slot 221 is linear, and its axis is parallel to and coincides with the longitudinal axis of the corresponding transmission rod 21. The second slot 321 forms an obtuse angle and has a portion which is parallel to the central longitudinal axis of the corresponding transmission rod 21 and is shifted in the lateral direction.
4 corresponds to the length of the hook 124. The remaining portion of the second slot 321 is inclined in the lateral direction and extends substantially corresponding to the center of the transmission rod 21. The length of the corresponding transmission rod 21 in the longitudinal direction in the second slot 321 is substantially the same as the entire length of the first slot 221.

On the distal end 121 of each transmission rod 21, a connecting lever 24 is held, the connecting lever 24 being angled at its distal end corresponding to the free end of the transmission rod 21 and connecting the connecting hook 124 with it. Has formed. Two lateral pins 224, 324 extend from the lower holding surface of the connecting lever 24 at positions corresponding to the slots 221, 321. The lateral pins 224 and 324 are fitted into corresponding slots 221 and 321 of the distal end portion 121 of the transmission rod 21. The pin 224 faces the rod holding slide 18,
It is provided at the tip of the connecting lever 24. Another pin 324 is provided on the longer part of the connecting lever 24, centered on the first pin 224 with respect to its longitudinal axis. The distance between the two pins 224, 324 is
The pin 224 comes into contact with the leading end of the slot 221 and stops, and the pin 324 comes into contact with the leading end of the angled slot 321 on the same side as the distance between the slots 221 and 321 on the vertical axis of FIG. And stop. In this case, the stop position is a function of the guide trajectory of the pin 324 and is determined by the angular movement of the connecting lever 24 in the horizontal plane. Due to the angular movement, the hook 124 moves the horizontal guide 23.
And the transfer rod and the connecting lever 2
And swings sufficiently between the position released by the relative movement between the first position and the second position.

Each connecting lever 2 is positioned coaxially with the lock pin 224 in the linear slot 221 of the transmission rod 21.
From the upper side of 4, a lateral extension connected to the blade is formed. The lateral extension is constituted by bolts 424 and has a head 524. The head 524 forms a spherical joint seat for the ball joint body 25. Ball joint body 2
5 are integrated with the blades A1, A1 ', A2, A2' and the corresponding blades A1, A1 'so that the connecting lever 24 rotates at least about the common axis of the pin 224 of the lever 24. A2 and A2 '. The sphere 25 has blades Al, A1 ', A2, A2'
Projecting from a vertical surface of the small arm 125 fixed thereto.

With reference to FIGS. 1 to 14, the following operation which is possible from the above-described structure will be described.

Normal operating state: When the threaded rod 3 is driven by the drive motor M or using a crank, the blade moves from the initial position of closing on the corresponding rail to the position of closing on the opposite rail. I do. The movement of the nut 8 and its associated slide body 11 starts, and in relation to the drive slide 12 (FIGS. 4 and 5), the roller 111 moves the lock swing lever 16 to move the drive slide 12 from the lock teeth 14. release. When the slide body 11 reaches the stroke stop 9 in the direction of movement of the drive slide 12, the drive slide 12 begins to move, pulling on the rod holding slide 18 above it and thus on the rod 120 and the transmission rod 21. . In the initial start-up phase, the pins 224, 324 of the connecting lever 24, which are connected to the initially closed blade, stop at the front side in the moving direction of the transmission rod 21 by abutting on the tips of the corresponding slots 221, 321. ing. Therefore, in the first stage of the movement of the transmission rod 21, the transmission rod 21 corresponding to the blade closed in the starting state moves relatively to the blade and the coupling connection lever 24. The relative movement of the connecting lever 2 corresponding to the blade closed in the starting state
4 is separated from the end of the lateral guide wall 23. on the other hand,
On the opposite side, the connecting lever 24 corresponding to one or more blades to be closed is slightly inclined by the movement of the guide rod, and substantially abuts the inner surface of the side wall of the lateral guide wall 23. Has been held. In this state, the pins 324 of all the connection levers 24 connected to the corresponding blades A1 and A1 'move to a position substantially intermediate between the tip of the inclined portion of the corresponding slot 321 and the angle portion. The connecting lever 24 is held by the lateral guide wall 23, with respect to which the transmission rod further slides.
During the movement, the connecting lever 24 and the corresponding blade are driven together with the transmission rod 21. At the same time as the blade reaches the closed position, the hook 124 of the coupling connecting lever 24 moves in the direction of movement of the transmission rod 21 beyond the front-rear edge of the guide wall 23 in the front-rear direction. Further, when the transmission rod 21 moves, the connection lever 24 corresponding to the blade which has reached the closed position further swings and engages with the front edge in the front-rear direction of the lateral guide wall. The swing lever associated with the blade moved to a position away from the corresponding rail is located substantially at the center of the lateral guide wall 23. In this way, the closed blade is locked.

When reaching the closed position on the opposite side from the start, the roller 111 of the slide body 11 associated with the nut 8
Reaches another recess of the adjustment cam 216. The recess is formed by the outer shape of the swing lever 16. The swing lever 16 is supported by a lateral support member 616. The drive slide 12 penetrates the lateral support 616, and the lock teeth 14 of the drive slide 12 enter the corresponding cutouts 212 of the drive slide 12 to lock the drive slide 12 when it reaches the closed position.

In the English switch shown in the accompanying drawings, two pairs of blades A1, A1 'and A2, A2' are provided.
Two pairs of blades restrain each other in a closed state. A single drive slide 12 has a single rod retaining saddle 20 and can accommodate all four of its blades. The British switch has a blade A2 in the center of the switch,
This is different from a general switch having a special locking means for A1 '. Therefore, in such a state, the blade A1
Is closed together with its pair of blades A2, which are rigidly restrained by rods 26. On the other hand, the locking means as the coupling connecting lever 24 may be provided outside the track corresponding to the blade A1. The above structure is the same for the blades A1 ′ and A2 ′,
They are simultaneously closed for each rail. From the above description, the structure of the switch box for the conventional switch system having only two blades is almost the same as the British switch, and the rod 26 and the inner blade A
2. It can be inferred by simply removing A1 '.

With particular reference to FIGS.
Due to the special structure of the rod holding saddle 18, the switch is kick-shaped. When the train suddenly comes from the direction opposite to the arrow T shown in FIG. 1 or comes from an unintended track, the switch is activated, and the kick means is operated by unlocked blades on wheels.

In these situations, the train wheels exert a force to move the unlocked blades in the closing direction. If this blade of the switch does not move, it stops or derails the train.

When a force in the closing direction is applied to the non-lock blade by the coupling holding spring 20 and the rod holding saddle 18 and the force is larger than the spring urging force of the holding spring 220, two opposing blades are used. The rear roller of the holding spring 220 is the inclined surface 5
18 and rides over it, compressing its corresponding parts of the retaining spring 220 together, so that the central rod 120 and the corresponding transmission rod 21 are released from the drive slide 12 and the force of the blade Can move in any direction. The mechanism of the coupling rocking lever, completely independent of the drive slide, works in the same way as described above.

By virtue of an expedient feature, the length of the inclined surface from one end to the other end on which the roller slides is equal to the length of the part of the angled slot 321 of the transmission rod which is parallel and straight to the transmission rod longitudinal axis. Correspondingly, as shown in FIG. 13, while the roller is on the inclined surface 518 and does not reach the middle part of the lateral wall of the rod holding saddle 18, the connecting lever 24 having the locked blade is in the disengaged state. Does not transition to This allows a transmission mechanism to absorb small mechanical stresses on the blade without changing the switching state.

The rod-retaining saddle 18, integral with the drive slide 12, makes it possible to avoid stresses on the drive motor in the event of a mechanical obstacle between the blade and the corresponding rail during the closing phase. For example, when a stone or the like actually prevents the rail from being brought into the final locked state, the drive slide 12 is always moved to the stroke end position, and the rod holding saddle 18 is moved to the rod holding saddle 18 in the same manner as described in the disconnection step. A central rod 120 is released.

Referring to FIGS. 1, 3 and 17, 19, the switch box comprises a blade and a central rod 120.
And a sensor for detecting the position of the drive slide 12.

A position sensor consisting of a limit switch 30 housed in a small box 31 is provided on the outside of the rail for the outer blade of the illustrated British switchgear. The limit switch 30 is driven by a small rod 32. The small rod 32 abuts the side of the facing blade that extends laterally through the rail and into it.

In the English switch, the central rod 120
The end of the stroke sensor between the motor and the drive slide 12 is connected to the small box 3 provided on the top of the switch box in the center of the rail or the rail track B1, B1 ', B2, B2'.
5.

FIGS. 17 and 19 show a hybrid box 35 in which functional elements for a British switch or a general switch are incorporated. actually,
As shown in FIG. 1, the British switch is provided with two small boxes 35, so that the device described with reference to FIGS. 17 and 19 is distributed between the two small boxes.

A slot 36 provided at the bottom of the small box 35
The sliding body 37 which is held by the rod holding saddle 18 and is integral with the drive slide 12 projects from the inside thereof. The slot 36 has a length substantially corresponding to the movement of the drive slide, and extends in the same direction as the movement direction of the drive slide. The sliding body 37 is combined with two limit switches 38 and 38 ′ provided at the end of the slot 36 at a distance. One of the limit switches 38, 38 'is located at a position corresponding to the stroke of the drive slide 12,
The other is placed at the end of the stroke. Sliding body 3
The 7 inclined introduction surface 137 acts on the movement button 138 of the limit switch.

The position sensor of the central rod 120 is similarly constructed. Another slot 36, which is parallel to the direction of movement of the transmission rod 21 and has a length corresponding to the stroke of the transmission rod 21, is formed in the small box 35 corresponding to the central rod 120. Within the small box 35, the slot 36 projects a segment of the rack 39. The rack segments mesh with toothed rollers 140 associated with the two limit switches 40. Two limit switches 40
Are appropriately spaced and positioned at the ends of the slots 36 in the same manner as described for the drive slide 12. The toothed roller has axial teeth 240 on the side facing the limit switch 40. The teeth are formed over a range of angles and the remaining roller surface of roller 140 abuts inclined surface 340. Axial teeth 240
Moves the push button of the mitt switch 40. Depending on the position of the rollers as determined by the rack, push button 440 may or may not be pressed.
Therefore, when the rack passes over the toothed roller,
A position signal of the center rod 120 is obtained. Normally, the central box for the switch includes a drive slide 12 and a central rod 12.
For zero it has the same sensors as described above.

Furthermore, a position sensor for the inner blades A2, A1 'is provided in the central box 35 of the British switch. This case will be described with particular reference to FIGS. Small drive rod 41 is outside rail A
1, A2 '. The small drive rod 41 is
It passes through the sides of the associated rails B1 ', B2. The protruding tip acts on another small rod 42 via the pressing plate 141 on the opposite side of the rail. The small rod 42 is slidably supported on the wall of the small box 35 and protrudes inside the small box 35, where it acts on the middle point of the lateral rocking lever 43, and the free end of the rocking lever 43 Acts to press the push button that moves the limit switch 30.

The small box 35 provided on the English switchgear
Alternatively, only the position sensor of the second inner blade A1 'may be stored, and the configuration is the same as that described above. Alternatively, it has a position sensor for the drive slide 12 and the central rod 120 and can be configured in the same way as in the previous example. In this case, the slide 37 and the rack 38 are combined with other elements integral with the drive slide 12 and the central rod 120.

Referring to FIGS. 8, 17 and 20 showing another feature, the rod holding saddle 18 and thus the drive slide 1
2 shows a means capable of firmly restraining the switch 2 on the central rod 120 and activating / deactivating the disconnecting means of the switch.
In particular, this can be achieved by a lateral vertical pin 50 that engages a receiving hole or support seat in the central rod 120.
The pin 50 can be manually inserted to prevent the switch from swaying. In the absence of manual correction intervention, the pin 50 is automatically engaged or disengaged with the central rod 120 by, for example, activating or deactivating the electromagnet 51. These steps can be performed in other ways using other driving means. In addition, these features have changed significantly
Without modification, the invention is applicable to, but not limited to, the English switch shown by way of example, as well as to a conventional two-blade switch.

According to a feature of convenience, the pin 50 fits into a slot 52 provided in the central rod 120.
The slot length is determined to allow a relative movement between the central rod 120 and the rod holding saddle 18 within a predetermined range. In particular, the rod holding saddle 18 and the drive slide 12 always reach the stroke end position. In that case, if there is an obstruction between the blade and the closing rail, the motor M will stop driving and prevent the blade from locking to the rail at its stroke end.

Since the slot 52 is so lengthened, the relative movement between the center rod and the saddle occurs in the above case against the operation of the holding spring 220,
The roller of the holding spring is always kept in the range of the inclined surface 518 of the rod holding saddle 18. Therefore, the center rod 120 is connected to the rod holding saddle 18 and the driving slide 1.
There is a small relative movement with respect to 2, but when the switch is kick-type, it never separates, as in the example of FIG.

The pin 50 is moved by the electromagnet 51 to simply engage or alternately engage and disengage.

If the pin is not automatically adjusted to the active / inactive position when driving the switch, mechanical means is provided to automatically deactivate the pin 50 when the switch is driven. Move to position. As an example of this, rod holding saddle 1
In connection with 8, lifting means are provided. The lift means has an inclined surface 154 of the cam track 54 and is combined with the roller 53. The roller 53 rotates about an axis in the transverse direction with respect to the sliding direction of the central rod 120, is at the free end position of the pin 50, and is arranged in the longitudinal direction with a lateral shift from the inclined surface 154.

When the rod holding saddle 18 is driven, before the pin 50 reaches the corresponding end of the associated slot 52 of the central rod 120, the roller 53 of the pin 50 is set on the inclined surface of the cam 54 held by the rod holding saddle 18. Engage pin 5
The 0 is lifted away from the corresponding slot 51 of the central rod 120, releasing the pin 50 and allowing the rod holding saddle 18 to move. When the stroke end of the switch is reached, the inclined surface or abutment on the opposite side of the cam track causes the pin 50 to return to engage the other slot 52 of the central rod 120 and kick again.

[Brief description of the drawings]

FIG. 1 is a plan view of a so-called English-style pointo having a switch box according to the present invention.

FIG. 2 is a cross-sectional view of the switch box of FIG.

FIG. 3 is an enlarged detailed cross-sectional view in a vertical plane of FIG. 1 for a switch part with a rail;

FIG. 4 shows a locked state before transfer of the drive slide and its movable locking means.

FIG. 5 shows a lock release state before transfer of the drive slide and its movable locking means.

FIG. 6 is a cross-sectional view of the saddle and the movable locking means, taken along a line VI-VI in FIG. 4;

FIG. 7 is a cross-sectional view of the movable locking means, taken along line VII-VII in FIG. 4;

FIG. 8 is an enlarged plan view of a guide assembled to a slide and a saddle holding a drive transmission rod when the blade is closed.

FIG. 9 is an enlarged cross-sectional view of the vertical plane of the saddle holding the rod and the drive slide.

FIG. 10 is a transverse sectional view of a saddle holding a rod and a drive slide.

11 is a partially enlarged view of the switch in FIG. 1,
The two outer blades and the parts of the locking means associated therewith are shown.

FIG. 12 illustrates a kick condition of the blade and / or a condition in which the blade is prevented from properly closing.
4 shows the disengagement step between the drive slide and the rod holding saddle.

FIG. 13 shows a disengagement step between the drive slide and the rod holding saddle, following FIG. 12;

FIG. 14 shows a step of releasing the engagement between the drive slide and the rod holding saddle, following FIG. 13;

FIG. 15 shows rail lock means of the switch box.

FIG. 16 shows rail lock means of the switch box.

FIG. 17 shows a cross sectional view of the blade position sensor box.

FIG. 18 shows various views and various cross-sectional views of a box for a blade position sensor and means for converting a rod holding saddle, a drive slide and a switch box from a kick type to a non-kick type. ing.

FIG. 19 shows a longitudinal sectional view corresponding to FIG. 19;

FIG. 20 shows a cross-sectional view of a means for converting a rod holding saddle, a drive slide and a switch box from a kick type to a non-kick type.

[Explanation of symbols]

 A1, A1 ', A2, A2' Blade B1, B1 ', B2, B2' Rail M Drive motor 1 Switch box 12 Drive slide 14 Lock tooth 16 Lever 18 Rod holding saddle 21 Transmission rod 24 Lever 120 Center rod 124 Hook 212 Notch 221, 321 Slot 224, 324 pin

Claims (42)

[Claims] 1. A switch box for a railway, a track, a point, etc., comprising a switch blade (A1, A1 ', A
2, A2 ′) (M, 3, 4,
5, 5 ', 5 ", 5"', 6) and at least one linear transmission means (12, 18,
120, 21, 24) and movable means (24, 124) to lock the blades in each closed position, the linear transmission means being housed in a box (1), ) Is basically the size and shape of the sleeper, and in the switch box which is attached to the track instead of the sleeper, the switch is the blade (A1, A1 ', A2, A2')
Movable locking means (23, 2,
4, 124) in the box (1) and the movable locking means (23, 2) for locking the blade.
4, 124) are located inside said box (1) in the area of said blades (A1, A2 ') in relation to each blade (A1, A2') and said blades (A1, A2 ')
When the switch arrives in the closed position, it automatically becomes active locked, while when the switch is driven to move the blade (A2 ', A1) from the closed position in the opposite direction, the blade (A2 ', A1) is the switch box, wherein the switch is automatically unlocked. 2. The drive unit (M, 3, 4, 5, 5 ', 5 ", 5"', 6), which is arranged laterally and in particular at right angles to the track and converts rotational movement into linear movement. It has linear transmission means (12, 18, 120, 21, 24) composed of saddles and slides that move in the direction between both ends of the stroke, and each or a plurality of the blades (A1, A) are provided on the linear transmission means.
1 ', A2, A2'), the transmission rod (21) is connected, at least the outer blade (A1, A2 ') is connected to the connecting lever (24), and the connecting lever (24) is connected to the outer blade (A1). , A2 ′) in the closed position, the corresponding movable means (21, 121, 321, 23, 1).
24, 224, 324) via the transmission rod (2
2. The switch box according to claim 1, wherein the switch box is connected to (1). 3. The blade (A1, A1 ', A2, A
2 '), the transmission rod (21) is held by at least one drive slide (12) and the movable locking means (8, 9, 11, 15, 16, 216, 2).
12) is a stroke stop member (60, 412, 51).
3. The switch box according to claim 2, wherein the switch slide is provided at both ends of a stroke of the drive slide. 4. The transmission rod (21) can be released from mechanical restraint with the drive slide (12) by an external moving force acting on the blades (A1, A1'A2, A2 '). The switch box according to claim 3, characterized in that: 5. The blade (A) is provided at the stroke end.
1, A1 ′, A2, A2 ′) and the transmission rod (2
0, 21) and sensors (30, 31, 32, 35, 36, 37, 38, 3) for the drive slide (12).
The switch box according to claim 3, characterized in that the switch box (9, 40) is provided. 6. The connecting lever (24) is provided for connecting at least the outer blade (A1, A2 ′) to the corresponding transmitting rod (21), the lever comprising:
3. The switch box according to claim 2, wherein said movable locking means of said blades (A1, A2 ') constitutes. 7. The connecting lever (24) swings and has a lateral hook (124) at the end opposite to the fulcrum, and each connecting lever (24) is connected to a joint means (4).
24, 525, 25) so as to be pivotable about a vertical axis to the corresponding said blades (A1, A2 '), said joint means being preferably ball joints, while each said connecting lever (24) The blade (A)
Means (22) for engaging the fixed stop member (23) in the vicinity of (1, A2 ') and adjusting the angular position of the connecting lever (24) between each of the levers and the transmission rod (21).
4, 324, 221 and 321), wherein the connecting lever (24) engages with the blade (A1) at start-up, at least in the closed position, during operation of the switch. 24) is the fixed stop member (23)
From the blades, and then the blades (A1, A1
1 ', A2, A2') move the blade (A1) in the closed position away from its corresponding rail (B1) so that one of the two blades (A2 ') is in the closed position. 7. The method according to claim 6, characterized in that, upon reaching, the corresponding connecting lever (24) moves angularly and the end hook (124) engages the rear end of the corresponding fixed stop (23). Switch box. 8. The means for adjusting the angle of the connection lever is constituted by a slot or a notch groove (321) to form an adjustment track formed on the transmission rod (21, 121), and the track is formed. At least one protrusion (3
The switch box according to claim 7, characterized in that (24) is provided on an opposite surface of the connecting lever (24). 9. The swing support shaft of the connecting lever (24),
Move the lever (24) to the corresponding blade (A1, A
2 ′), and the connection lever (24) is connected to the transmission rod (2).
1) between two lateral guides (23) oriented in the direction of movement, extending beyond the blades (A1, A2 ') towards the corresponding rails (B1, B2'), while the transmission The switch box according to claim 7, wherein the rod (21) extends in a substantially horizontal direction, and the connecting lever is provided at each end of the transmission rod (21). 10. The connecting lever (24) is moved relative to the transmission rod (21), particularly at the beginning or end of the drive stroke of the transmission rod (21). 8. The switch box according to claim 7, wherein the switch box can move alternately between the engaged position and the released position. 11. The transmission rod (21) is connected to at least one drive pin (324) of a corresponding coupling lever (24).
Angled groove or slot slidably engaging the slot (321)
Each angled groove or slot (321) has a portion parallel to and laterally offset from the average longitudinal axis of the transmission rod (21), wherein the portion is Extending towards the free end of the rod (21),
1) up to around the average longitudinal axis or the transmission rod (21)
A means (23) for engaging a lateral hook (124) of the connecting lever (24); and a stopping means (23) for connecting the connecting lever (24). 24) is limited in the direction of engagement with the stop means (23) at the stroke portion of the connecting lever pulled by the transmission rod (21); 124) as well as the stop means (23) which engages the hook (124) of the connecting lever (24) to limit the swing during the stroke. As long as the lever (24) is connected to the blade (A1) closed in the initial state, the position and shape of the slot (321) will cause the transmission rod (21) in the first stretched state of the drive stroke. Is the connecting lever Moving with respect to the blade (A2 ') to be released from the stopping means (23) while being disengaged from the stopping means (23), while being connected to the blade (A2') to be closed. The angle movement of the connecting lever (24) is restricted by the stopping means (23), and protrudes from the connecting lever (24) near the hook (124).
21) such that the protrusion (324) engaging with the slot (321) is located at the midpoint of the slope of the slot (321), and the respective blade (A1, A2 ') pivots in the direction of movement. 321) restricts the swinging of the connecting lever (24) connected to the blade (A2 ') to be closed by the lateral guide, thereby the corresponding connecting lever (24). ) With the rod (21)
When the blade (A2 ') is in a closed state, the connecting lever (24) restricts its angular movement (2).
11. The switch according to claim 1, wherein the connection lever (24) is released from 3) and further swings into engagement with the corresponding stop member (23). Box. 12. A means for restricting swinging of said connecting lever (24), and said hook (1) of said connecting lever (24).
24) The means for restricting the swing is constituted by combining the lateral guide wall (23) of the transmission rod (21) and the connecting lever (24), and The side guide wall (2
3) are arranged at a predetermined distance from each other, and the stop member is formed at each longitudinal center line end of the lateral guide wall (23), and the end is formed of the lever (24). When the hook (124) is past the end, the blade (A2 ') is in the closed position, while the projection (324) of the connecting lever (24) is in the corresponding position of the transmission rod (21). Drive slot (32
In a state where the hook (1) of the corresponding connecting lever (24) is located substantially at the center of the inclined portion in 4).
12. Switchgear box according to claim 11, wherein the lateral guide wall (23) facing in the direction of (24) forms a sliding wall. 13. Each of said transmission rods (21) has a second slot (221), said second slot (221) being substantially parallel and coincident with the average longitudinal axis of said transmission rod (21), A pin (224) provided on the corresponding connection lever (24) or the like is fitted into the second slot (221), and the pin (224) is movable along the second slot (221). The pin (224) is connected to the connecting lever (2).
4) With respect to the angular movement of the connecting lever (2).
Means (424, 52), for example a rotary joint, for connecting 4) to said blades (A1, A2 ').
The switch box according to any one of claims 1 to 12, wherein the switch box is coaxial with (4, 25). 14. A transmission rod (21) is connected to a common rod holding saddle (18), said rod holding saddle (1).
8) is movably supported in a direction substantially perpendicular to the axis of the transmission rod (21), the rod holding saddle (18) is fixed to the drive slide (12), while the transmission rod (21) Are movable coupling means (220, 320,
218, 518) connected to the rod holding saddle (18) and the blades (A1, A1 ', A2, A
2 ') when the movement resistance exceeds a predetermined torque, or when a force in the direction of directly moving the blades (A1, A1', A2, A2 ') is applied.
20, 320, 218, 518) are released from the rod holding saddle (18) and the drive slide (12), and the transmission rod (21) moves the transmission rod (21) to the rod holding saddle (18). Against the predetermined torque to be connected,
14. The switch box according to claim 1, wherein the switch box moves relative to the rod holding saddle. 15. The transmission rod (21) is connected to the rod holding saddle (18) by a central rod (120), the central rod (120) being connected to the central rod (12).
0) a roller (320) that rotates in the sliding direction, and the transmission rod (21) is provided with spring biasing means (22).
0), said spring biasing means (220)
Is the transmission rod (2) against a predetermined spring biasing force.
The roller (320) is in contact with the inclined surface (518) of the roller rolling wall (218) provided on the rod holding saddle (18). The inclined surface (518) is provided at two places, and is inclined mirror-symmetrically to each other with respect to the sliding direction of the rod holding saddle (18), and the rolling wall (218) of the roller (320) is provided. Are provided at two locations opposite each other, on the central rod (210) and on the transmission rod (2).
1) connected to at least one of said rollers (32)
15. Switch box according to claim 14, characterized in that 0) are provided corresponding to each said inclined surface (518). 16. The rod-retaining saddle (18) rests on an upper guide (19) of the drive slide (12) and has two opposing transverse walls (21) oriented in the sliding direction of the transmission rod (21). 19), and on the side wall (19),
Two opposing isopod trapezoidal projections (318) are provided, the inclined side of which is the central rod (120).
The inclined surface (51) contacting the roller (320).
A switch box according to claim 14 or claim 15, wherein the central rod (120) is connected to each of the transmission rods (21) at both ends thereof. 17. The center rod (120) connected to the transmission rod (21) is connected to the rod holding saddle (1).
8) has two rollers (320) in contact with the rolling wall, and the rollers (320) are each provided with a holding spring (22).
0), two retaining springs (220) are provided, each of which is connected to the central rod (120).
And the length direction of the holding spring (220) corresponds to the longitudinal direction of the central rod (120), and the central rod (120) is connected to the rod holding saddle (1).
17) The roller is located outside the end of the corresponding inclined surface (518) when engaged with the drive slide (8) and the drive slide (12).
The switch box according to any one of the above. 18. A movable lock means (3, 8, 9, 10, 11, 12, 212, 212) with respect to the drive slide (12).
14, 15, 16) are the blades (A1, Al ′,
18. The switch box according to claim 1, wherein one or more of A2, A2 ') are provided at both ends of the closed stroke. 19. In the direction in which the movable locking means of the drive slide engages one or more notches (212) arranged along the longitudinal side of the drive slide (12).
The lock teeth (1) pressed against the elastic fixing member (15)
19. Switch box according to claim 18, characterized in that it comprises rocking means (16) for releasing (4). 20. Means for releasing said drive slide (12) from said locking teeth (14) at the end of a drive stroke connects said drive slide (12) to a linear drive actuator (3, 8). The means (3,8,9) being directly controlled by (3,8,9) and coupled to the drive actuator (3,8) during the extension of the stroke,
After the idle motion relative to the drive slide (12), the drive slide (12) is mechanically engaged with the drive slide (12) to drive or push the drive slide (12). The means (3, 8, 9) connected to the drive slide (12) are provided with means (11, 111) for controlling the swing lever (16), while the corresponding notch (21) of the drive slide (12) is provided.
Means for engaging the lock teeth (14) in 2) is constituted by coupling means (8, 9, 11, 111), and the coupling means (8, 9, 11, 111) is
20. Switch box according to claim 18 or 19, which moves with the drive slide (12) during the final extension of the drive stroke. 21. A swing lever is provided on the drive slide (1).
2) comprising at least one lever (16) swinging about an axis (316) transverse to the direction of movement, said lever (16) being substantially parallel to the direction of movement of said drive slide (12). And the swing shaft (316)
Is in a fixed position with respect to the drive slide (12), the lever (16) being provided at its distal end with the notch ( 212) to alternately press and move the engaging lever in the engaged state and the disengaged state, while the other part of the rocking lever has a control cam (216) on the opposite side to the pivot (316). ), And at least one roller (11) which moves together with the means (8, 9) connecting the drive slide (12) to the linear actuator.
21. A switch box according to any of claims 18 to 20, wherein the switch box engages with l). 22. The means (8, 9) for connecting the drive slide (12) to the linear actuator comprises a slide body (8, 10, 1) sliding between stop members at both ends.
The two stop members are separated by a distance corresponding to the idle travel required to drive the rocking lever (16), and at the stroke end of the drive slide (12) the locking member The slide bodies (8, 10, 11) correspond to positions where the teeth (14) engage / disengage with one of the notches (212) formed in the drive slide (12).
Has at least one roller (111) movably connected to said linear actuator (3, 8), said roller (111) being formed in a corresponding part of said swing lever (16). 22. A switch box according to any of claims 18 to 21, wherein the switch box engages a track of a cam (116). 23. The rocking lever comprises two levers (16) integral with each other and of the same type, each of said levers (16) extending along the longitudinal side of a drive slide (12), The rocking lever (16) is pivotally supported on a pivot (316) which rotates in a lateral support member (616), the rocking lever (16) being of a bridge type structure, under which the drive is provided. At least a portion of the drive slide (12), which is approximately the length of the drive stroke of the slide (12), passes, while the slide body (8, 10, 11) associated with the linear actuator (3, 8) The swing lever (16) has a roller (111) for each lever (16) and is movable between two stroke end walls (9) transverse to the stroke of the drive slide (12). , The two strokes The walls (9) are spaced apart from each other, the separation distance being a length corresponding to the stroke of the control roller (111) for separating the drive slide (12) from the locking teeth (14). 22. The switch box according to claim 21, wherein: 24. A control track in the form of a cam (116) is provided at the lower end of each lever of said swing lever (16), while said slide body (8, 10, 11) 22. The connected roller (111) rotates about a horizontal central axis and is supported by a vertical wall parallel to a drive stroke of the slide body (8, 10, 11). Switch box. 25. A linear actuator (3, 8) having a threaded rod (3) rotatably driven by a nut (8), wherein the slide body (8, 10, 11) comprises a nut (8) and a slide body. The switch box according to any one of claims 1 to 24, wherein (11) is included as a component. 26. The swing lever (16) is urged by a resilient means (15) against the roller (111) of the slide body (8, 10, 11) with a constant spring force.
The resilient means (15) presses the locking teeth (14) against the drive slide (12), and the resilient means (15) traverses at least one side, preferably both sides, from the wall of the drive slide (12). The swing lever (16) is fixed to the lock teeth (14).
22. The switch box according to claim 21, wherein the switch box is pressed against a protrusion of the switch. 27. The switch box includes a position sensor (30, 31, 32, 35, 41, 42, 43) for each of the blades (A1, A1 ′, A2, A2 ′), and a transmission rod. It comprises sensors (39, 40) for the two positions at the stroke end of (21) and position sensors (37, 38) of the drive slide (12), said sensors being limit switches (30, 38, 40). The switch box according to any one of claims 1 to 26, comprising: 28. The blade (A1, Al ′, A2,
A2 ′) is the position sensor of the corresponding blade (A1,
A1′A2, A2 ′) and the rails (B1,
B1 ′, B2, B2 ′) side, and the rail (B
1, B1 ', B2, B2')
2, 41) and the small rod (32, 41)
Switch box according to claim 27, characterized in that the switch acts directly on the push button of the limit switch (30) or by a transmission mechanism (43). 29. The limit switch corresponding to the transmission rod (21) and the drive slide (12) is constituted by a sliding body (37, 39).
39) is mechanically connected through a slot (36) provided in a corresponding wall of the box (1) to directly or a transmission mechanism (137, 138, 140, 240, 340, 4).
Switch box according to claim 27 or 28, which acts on said corresponding switch (38, 40) via (40). 30. The slider (37) having a surface for moving a push button (138) of the limit switch (38), the surface being in the form of an inclined introduction surface (137). 29. The switch box according to 29. 31. The slider is constituted by a segment of a rack (39) which engages a roller, a series of teeth (140) is formed on a part of the outer circumference of the roller, and the remaining outer part is Has an axial shape or at least one tooth (240), which has an introductory sloping surface, where the roller acts on the push button of the limit switch (40) and the roller 3. A system according to claim 2, wherein said limit switch is provided for each of said limit switches.
9. The switch box according to item 9. 32. At least a position sensor of said transmission rod (21) and said drive slide (12) is provided in one or more small boxes (35) and said rails (B1, B2).
28. The switch box according to claim 27, wherein the switch box is arranged in a central part of the switch box between two of the switch boxes 1 ', B2, B2'). 33. The switch box includes a transmission rod (2).
1) or the switch box is of a non-kick type having movable connection means (50) for rigidly connecting the center coupling rod (120) to the drive slide (12). The switch box according to any one of claims 1 to 32. 34. A switch box according to claim 35, wherein said movable connecting means (50) is constituted by a pin (50) which can be manually attached and detached. 35. The movable means (5) connecting the transmission rod (21) rigidly to the drive slide (12).
34. The rolling device according to claim 33, wherein 0) comprises at least one pin, said pin being alternately moved to a connected and unconnected position by an actuator (51), said actuator being, for example, an electromagnetic actuator. Rut box. 36. The means for locking the transmission rod (21) or the central rod (12) to the drive slide (12) makes it possible to move them relative within a predetermined distance (52). The switch box according to any one of claims 33 to 35. 37. The pin (50) has an oval slot (52) provided in the central rod (120) and extending in the direction of movement of the transmission rod (21) in the two closed states of the blade. The central rod (12
Switch box according to claim 33 or 36, characterized in that the slots (52) are of a predetermined length. 38. An electromagnetic means (51) or mechanical means (53, 54) is provided for said pin (50),
When the drive slide (12) is started and reaches the stroke end, the pin (50) is raised and lowered so that the transmission rod (21) is connected and disconnected from the drive slide (12). The switch box according to any one of claims 33 to 37, wherein the switch box is capable of being operated. 39. A cam track (54,44) held by said drive slide (12), said lifting means being mechanical.
39. The device according to claim 38, wherein the cam track moves integrally with the drive slide (12) and engages a control roller (53) at the free end of the pin (50). Switch box. 40. Only two blades are provided for a switch, each of said two blades having a movable locking means (24) in a position which closes to the associated rail. 40. The switch box according to any one of to 39. 41. A so-called British switch with four or more blades (A1, Al ', A2, A2'), said blades (A1, A1'A2,
A2 ') are driven together in pairs and connect to said rails (B1, B1', B2, B2 ') of the track, with a single drive slide (12) and a single rod holding saddle (18). The movable lock is provided for the four blades (A1, A1'A2, A2 '), while only the outer blade (Al, A2') is closed to the corresponding rail (B1, B2 '). Means are provided, while the inner blade (A2, A1 ') is closed by a rigid member link (55) such as a connecting rod when the outer blade (A1, A2') is closed.
41. Switchgear box according to any of the preceding claims, wherein the switchgear box is locked in a closed position together with (1, A2 '). 42. The position sensor (30) for the inner blade (A1 ′, A2) comprises the position sensor (3) for the transmission rod (21) and the drive slide (12).
8. The small central box (8, 40) is housed in the small central box (35) or is housed in another small central box.
1. The switch box according to 1.