JP2011088454A - Point machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent the inability of shifting rails due to abrasion etc. of a sliding part or an engagement part in a point machine. <P>SOLUTION: The point machine includes: a locking body 50 provided on a pinion 40 which engages with an operating lever 20 having racks 23 that move to convert movable rails of a railroad turnout and a locked body 30, which has regulated parts 31, 32 that contact with the locking body 50 provided on the operating lever 20 and whose movement is regulated by the contact of the regulated parts 31, 32 with the locking body 50. The locked body 30 is provided with a pressed part 32b, which is pressed in contact with the locking body 50 before the regulated parts 31, 32 contact with the locking body 50. The locking body 50 is provided with a pressing part, which contacts with the pressed part 32b of the locked body 30 to move the operating lever farther from the movement stop position of the operating lever by the engagement of the racks and the pinion before the engagement of the racks and the pinion stops the movement of the operating lever, and regulation parts 51, 52, which contact with the regulated part in the locked body after movement to regulate the movement of the locked body 30. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a turning machine for changing and locking a movable rail in a railway branching device.

  As a conventional turning machine, a turning machine found in Patent Document 1 proposed by the present inventor is known. When the description is given with reference to the reference, this rolling machine (1, 101) is a rack (rack tooth) that moves to convert the movable rails (Tongler T1, T2) of the railroad branching device (100). And a pinion (12) that moves the operating can (20) by meshing with the rack (21b) of the operating can (20), the rack (21b) And the pinion (12) are both constituted by an intermittent rack and an intermittent pinion.

  The switch is provided on the pinion (12) and rotates together with the pinion (12) and the lock (13) is provided on the operating rod (20) and moves together with the operating rod (20). And the restricted portions (22a, 22b) that come into contact with the lock body (13) and the restricted portions (22a, 22b) come into contact with the lock body (13) to restrict movement. The locked body (22) to be provided.

  The operation of this turning machine is described in detail in Patent Document 1, but it will be briefly described as follows with reference to FIGS.

  When the pinion (12) is rotationally driven by the motor (2), the rack (20) moves forward and backward as shown in FIGS. 3 and 4, and the movable rail (Tongleyl T1) is passed through the conductive portion (108 in FIG. 5). , T2) moves in a direction perpendicular to the main rails (R1, R2), and a conversion operation is performed.

  In FIG. 3 (A), the regulating surface (13a) of the lock body (13) is in contact with the regulated portion (22a) of the operating can (20), and the operating can (20) moves to the left. Is regulated. In this state, the operation lever (20) is located on the rightmost side of the figure. When the rotary drive shaft (11) is rotated clockwise from the state of FIG. 3 (A), the regulating surface (13a) is disengaged from the regulated portion (22a) of the locked body (22), and at the same time, the pinion teeth Engagement between the row (12b) and the rack tooth row (21b) is started (see FIG. 3B).

  When the pinion tooth row (12b) and the rack tooth row (21b) are engaged, the operation lever (20) moves to the left (FIG. 3 (B) to FIG. 4 (A)), and the state shown in FIG. 4 (A). When the rotary drive shaft (11) is further rotated, the engagement between the pinion tooth row (12b) and the rack tooth row (21b) is released at the same time as shown in FIG. ) Of the regulating surface (13a) starts to come into contact with the regulated portion (22b) of the operation lever (20).

  Thereafter, when the rotary drive shaft (11) is further rotated, the restricting surface (13a) of the lock body (13) comes into sliding contact with the restricted portion (22b) of the operation lever (20) and the restricted portion (22b). Fully abutting (see FIG. 4C), the movement of the operation lever (20) to the right is restricted. In this state, the operation lever (20) is located on the leftmost side of the figure. In addition, when the operation lever (20) is moved in the reverse direction to convert the tongrel (T1, T2) in the reverse direction, the above operation is performed in reverse. According to this turning machine, the advantage is obtained that the configuration is simple and the operation is reliable.

  Further, as described in paragraph 0049 of the same publication, such a turning machine can be used by being arranged at the position of the escape crank (104, 106) in the branching device (100). The rod (105, 107) in the branching device (100) can be constituted by the operation can (20). That is, this turning machine can also be used by being arranged so that the operation lever (20) is orthogonal to the rails (R1, R2). Note that a turning machine which can be used by being arranged so that the operation can be orthogonal to the rail is also described in Patent Document 2, for example.

JP-A-11-157448 JP 2001-163221 A

  It has been found that when the above-described turning machine described in Patent Document 1 is used in such a manner that its operation can (20) is orthogonal to the rails (R1, R2), there are the following problems.

  In the switch machine described in Patent Document 1, the movement surface (20) is moved by the restriction surface (13a) of the lock body (13) coming into contact with the restricted portion (22a or 22b) of the movement portion (20). Since when the pinion (12) is rotated, the regulating surface (13a) of the lock body (13) and the regulated portion (22a or 22b) of the operation lever (20) are in sliding contact with each other. Wear occurs in the sliding contact portion.

  Then, when the tipping machine is used for a long period of time, as shown in FIG. 27, the engagement between the rack (21) and the pinion (12) is released due to an increase in wear of the sliding contact portion, and the lock body. When the regulation surface (13a) of (13) and the regulated portion (22a or 22b) of the operation lever (20) should come into contact, a gap C may be formed between them. Even if such a gap C occurs, in the state shown in FIG. 27, an external force in the direction of engagement with the pinion (12) (in the direction of the arrow X1) does not act on the operation lever (20). If (20) does not move in the direction of the arrow X1 by the external force, no problem occurs. Then, if the pinion (12) rotates in the meshing direction (arrow RR direction) with the rack (21), the restriction on the restricted portion (22a or 22b) by the restriction surface (13a) is released and at the same time the pinion (12 ) And the rack (21) are properly meshed with each other, and the operation lever (20) moves in the direction of the arrow X1.

  As shown in FIG. 5 of Patent Document 1, the turning machine is arranged so that the operation lever (20) is parallel to the rails (R1, R2, T1, T2), and the operation lever moves the escape crank. When the train passes through the branching device (100), even if the train lateral pressure is applied to the movable rails (T1, T2), the lateral pressure is applied to the escape crank. By simply applying the force, the force does not act as an external force in the moving direction (arrow X1 direction) with respect to the operation lever (20) or hardly acts. Therefore, a problem arises when the switch is arranged so that its operation lever (20) is parallel to the rails (R1, R2, T1, T2) and the branching device is switched via the escape crank. Hateful.

  However, when the switchboard described in Patent Document 1 is used so that its operation can (20) is orthogonal to the rails (R1, R2), the train passes over the branching device (100). In this case, when train lateral pressure is applied to the movable rails (T1, T2), the force acts as an external force in the moving direction (arrow X1 direction) with respect to the operation lever (20), or is extremely easy to act. Become.

  27, an external force in the direction of engagement with the pinion (12) (in the direction of the arrow X1) acts on the operation lever (20) in a state in which the gap C shown in FIG. After the movement lever (20) moves in the direction of the arrow X1 so as to fill, when the pinion (12) rotates in the meshing direction (arrow RR direction) with the rack (21) as shown in FIG. Since the engagement start position of the pinion (12) and the rack (21) is deviated only, the teeth (12a) of the pinion (12) and the rack (rack teeth 21) are improperly in contact with each other. Inappropriate wear or scraping. A portion where the rack (rack teeth 21) is worn or scraped improperly in this manner is drawn exaggeratedly by a broken line (22) in FIG.

  Such deformation of the tooth profile due to inappropriate wear or the like is caused when the pinion (12) rotates in the direction of the arrow RL and moves the operation canal (20) in the direction of the arrow X2 during the subsequent tipping motion. 20), the movement amount of the locking body (13) and the regulated portion (22a or 22b) of the operating rod (20) are increased. Helps wear parts.

  If the above phenomenon is repeated, there is a possibility that an appropriate falling action may not be obtained.

  An object of the present invention is to solve the above-mentioned problems and to provide a turning machine that can reliably obtain a proper turning action over a longer period of time than before.

According to an aspect of the present invention, there is provided a switch machine including an operation canister that moves to change a movable rail of a railroad branching device, and the operation canister is moved by meshing with the rack of the operation canister. And at least one of the rack and the pinion is constituted by an intermittent rack or an intermittent pinion,
A lock provided on the pinion and rotating together with the pinion;
The control unit is provided with the control unit, moves with the control unit, and has a controlled part that comes into contact with the lock body, and the control part is controlled to move when the control part comes into contact with the lock body. A tipping machine with a lock body,
The locked body is provided with a pressed portion that is pressed against the locking body before the regulated portion comes into contact with the locking body, and
Before the movement of the movement due to the engagement between the rack and the pinion is stopped, the lock body is brought into contact with the pressed portion in the locked body to press the pressed portion and the rack. The pressing portion that moves the operating rod further than the movement stop position of the operating rod by meshing with the pinion, and the restricted portion in the locked body after being moved by being pressed by the pressing portion. A restricting portion for restricting the movement of the locked body in contact with it is provided.

  The switch machine has an operation canister having a rack that moves to change the movable rail of the railroad branching device, and a pinion that moves the operation canister by meshing with the rack of the operation canister, At least one of the rack and the pinion is constituted by an intermittent rack or an intermittent pinion, and is provided with the pinion and rotates with the pinion. Since it has a regulated part that comes into contact with the body and the regulated part comes into contact with the locked body, the movement of the regulated part is restricted, so that the movement is performed with a simple configuration. Can be done.

  According to this turning machine, the locked body is provided with a pressed portion that is pressed against the locking body before the restricted portion contacts the locking body. In addition, the lock body is brought into contact with the pressed portion of the locked body before the movement of the movement due to the engagement between the rack and the pinion is stopped, and the pressed portion is pressed against the rack. A pressing portion that moves the operating rod further than a movement stop position of the operating rod by meshing with the pinion, and a locked portion that comes into contact with the restricted portion of the locked body after being moved by being pressed by the pressing portion. Since a restricting part that restricts the movement of the body is provided, at the time of tipping operation, after the movement can move by meshing the rack and pinion, it is further pushed by the pushing part and then moved. Part on the locked body That by abutting the the restricted portion, so that the movement is restricted.

  The further movement of the movement from the movement stop position due to the engagement between the rack and the pinion serves to absorb gaps caused by wear caused by the contact between the pressing portion of the lock body and the restricted portion of the lock body. . In other words, the amount of movement that the operation rod has moved further from the movement stop position due to the engagement of the rack and the pinion is the clearance due to wear caused by the contact between the pressing portion of the lock body and the restricted portion of the lock body. As long as it does not become smaller than the size, even if the movement moves so as to fill the gap, the subsequent engagement between the pinion and the rack will be performed appropriately.

  Therefore, it is possible to prevent the rack and pinion teeth from being worn or scraped inappropriately for a longer period of time than before, and as a result, it is possible to reliably obtain an appropriate rolling operation for a longer period of time than before.

  In one aspect of the present invention, the pressing portion can be constituted by a roller provided rotatably with respect to the lock body, and the regulating portion can also be constituted by the roller.

  If it does in this way, wear of a pressing part and a control part can be reduced remarkably, and an appropriate rolling operation will be certainly obtained over a longer period than before.

  In one aspect of the present invention, the pressing portion is constituted by a roller rotatably provided at a position corresponding to a meshing start portion and a meshing end portion of the rack and pinion in the lock body. An arcuate body having an arc surface capable of abutting on the regulated portion, wherein the regulating portion is concentric with the tip circle of the pinion and has a radius of curvature from the center of the pinion to the outer end of the roller. Can be configured.

  By doing this, the pressing part is composed of rollers, so that the pressing operation by the pressing part can be smoothed, and at the same time, wear of the pressing part and the pressed part can be reduced, and if the pinion over-rotates for some reason However, the restricted portion can be reliably regulated by the circular arc body.

The top view which shows one Embodiment of the switch machine which concerns on this invention, and its example of installation. The figure which showed simultaneously the top view and the side view which are in the stereotaxic state of the principal part in the switch machine of the said one Embodiment of this invention. The figure which shows unlocking operation | movement from the stereotaxic locked state of the said one Embodiment. The figure which shows conversion operation | movement from the unlocking operation | movement of the said one Embodiment. The figure which shows a to-be-pressed part pushing operation | movement start from the conversion operation | movement of the said one Embodiment. The figure which shows the to-be-pressed part pushing operation | movement of the said one Embodiment. The figure which shows the to-be-pressed part pushing-in operation end of the said one Embodiment, and a locking operation start. The figure which shows the inverted lock state of the said one Embodiment. The figure which shows unlocking operation | movement from the inverted lock state of the said one Embodiment. The figure which shows conversion operation | movement from the unlocking operation | movement of the said one Embodiment. The figure which shows a to-be-pressed part pushing operation | movement start from the conversion operation | movement of the said one Embodiment. The figure which shows the to-be-pressed part pushing operation | movement of the said one Embodiment. The figure which shows locking operation from the to-be-pressed part pushing operation | movement of the said one Embodiment. It is the elements on larger scale of Drawing 2, and an operation explanatory view. The figure which showed simultaneously the top view in the locked state of the principal part in the stereotaxic machine of other embodiment of this invention, and its side view. The figure which shows the to-be-pressed part pushing operation | movement of said other embodiment. The figure which shows the locking operation | movement from the to-be-pressed part pushing operation | movement of said other embodiment. The figure which showed simultaneously the top view and the side view which are in the locked state of the principal part in the stereotaxic turning machine of further another embodiment of this invention. The figure which shows unlocking operation | movement of said further another embodiment. The figure which shows the conversion operation | movement of said further another embodiment. The figure which shows to-be-pressed part pushing operation | movement from the conversion operation | movement of the said further another embodiment. The figure which shows the to-be-pressed part pushing operation | movement of the said further another embodiment. The figure which shows the locking operation | movement from the to-be-pressed part pushing operation | movement of the said further another embodiment. The figure which shows the transfer process to the inverted lock of said further another embodiment. The inverted lock state of said further another embodiment is shown. The figure which showed simultaneously the top view and its side view which are in the locked state of the principal part in the stereotaxic machine of the modification of embodiment shown in FIG. The enlarged view (description figure of a subject) of the location which wears. Enlarged view of the part affected by wear (description of the problem).

  Hereinafter, preferred embodiments of the present invention will be described in detail. The present embodiment described below does not unduly limit the contents of the present invention described in the claims, and all the configurations described in the present embodiment are indispensable as means for solving the present invention. Not necessarily.

<Overall configuration and installation example>
FIG. 1 is a plan view showing an embodiment of a turning machine according to the present invention and an installation example thereof. The switch 10 includes a casing 11, an operation canister 20 including a rack 23 (see FIG. 2) that moves to change the movable rail T of the railroad branching device 1, and a rack of the operation canister 20. 23 and a pinion 40 that moves the operating can 20 by meshing with it. At least one of the rack 23 and the pinion 40 may be an intermittent rack or an intermittent pinion. In this embodiment, the rack 23 is an intermittent rack, and the pinion 40 is also an intermittent pinion (FIG. 2). reference). In FIG. 1, only a part of the railroad branching device 1 is depicted, but the railroad branching device 1 may adopt a known configuration.

  The switch 10 is provided on the pinion 40 and rotates together with the pinion 40. The switch 10 is provided on the operating canister 20 and moves together with the operating canister 20 so as to come into contact with the locking body 50. A locked body 30 that includes regulating portions 31 and 32 (see FIG. 2) and whose movement is regulated by the regulated portions 31 and 32 coming into contact with the locked body 50 is provided.

  As shown in FIG. 2, the locked body 30 includes a pressed portion 31 b (32 b) that is pressed against the locking body 50 before the regulated portion 31 (32) contacts the locking body 50. It is provided. On the other hand, the locking body 50 comes into contact with the pressed portion 31b (32b) of the locked body 30 before the movement of the operation lever 20 by the engagement of the rack 23 and the pinion 40 is stopped. 31b (32b) is pressed, and the pressing portion 51 (52) for moving the operating can 20 further than the movement stop position of the operating can 20 due to the engagement of the rack 23 and the pinion 40, and pressing by the pressing portion 51 (52) A restricting portion 51 (52) for restricting the movement of the locked body by contacting the restricted portion 31 (32) of the locked body 30 after being moved is provided. In this embodiment, the pressing portion 51, the restricting portion 51, and the pressing portion 52, and the restricting portion 52 are configured by the same part. However, as will be described later, the pressing portion and the restricting portion may be configured by different parts. It is.

  As shown in FIG. 1, the switch 10 is used so that the operating can 20 is arranged so as to be orthogonal to the rail R (T) so that the operating can directly switch the branching device without going through the escape crank. Is done. The switch 10 is installed on the sleeper 2 by fixing the casing 11 to the sleeper 2 with bolts 12. A known adjusting rod 3 is connected to the operation rod 20, and an adjusting rod 3 is connected to the left side of the adjusting rod 3 in FIG. 1 via a connecting portion (the connecting portion is on the left side of FIG. 1 and is not shown). 3 is connected to a rod 4, and a movable rail (tongrail) T is connected to the roller 4 with a bolt and nut 5. A lock can 6 having a known structure is connected to a movable rail T (not shown) via a connection can 7. The operation rail 20 is moved in the directions of the arrows X1 and X2 by driving a motor, which will be described later, so that the movable rail T moves and performs a rolling operation.

<Operation can 20>
FIG. 2 is a view showing a plan view of a main part and a side view of the turning machine 10 at the same time. The motion can 20 is slidably mounted on the casing 11 of the switch 10. As shown in FIG. 1, the left and right side walls of the housing 11 are provided with holes 11 b through which the operation cannula 20 is inserted. Stopper 21 and 22 are integrally provided on the operation canister 20. The operation lever 20 is slidable in the directions of arrows X1 and X2 (direction perpendicular to the rail R) shown in FIG. 1 within a range in which these stoppers 21 and 22 abut against the inner surface of the side wall of the housing 11. The operating can 20 has a rack (rack tooth) 23 (see FIG. 2) formed only in its movement range (stroke). When the rack 23 is engaged with the pinion 40, the directions of the arrows X1 and X2 shown in FIG. Driven to.

<Locked body 30>
The locked body 30 is mainly intended to lock the movement of the operation can 20, and has the above-described restricted portions 31 and 32. Moreover, it has the pressed parts 31b and 32b described above. The to-be-locked body 30 is comprised by the plate-shaped body thru | or block body provided in parallel with the motion can 20 toward the moving direction of the motion can 20. As shown in FIG.

  The regulated portions 31 and 32 are formed in an inclined shape at both corners with respect to the moving direction of the locked body 30. As shown in FIG. 2, the regulated portion 31 is configured by an arcuate surface centered on the rotation center O <b> 1 of the lock body 50 in a positional relationship where the regulated portion 31 contacts the regulation portion 51 in the lock body 50. Yes. Similarly, the regulated portion 32 is an arc surface centered on the rotation center O1 of the lock body 50 in the positional relationship where the regulated portion 32 abuts on the restriction portion 52 in the lock body 50 as shown in FIG. It is configured.

  The pressed portion 31 b is configured by the side surface (left side surface) of the locked body 30 connected to the controlled portion 31. Similarly, the pressed portion 32 b is configured by the side surface (right side surface) of the locked body 30 connected to the regulated portion 32. These pressed parts 31 b and 32 b are arranged at positions facing the end teeth 23 a and 23 b of the rack 23 with respect to the moving direction of the locked body 30. The relationship between the locked body 50 and the locked body 30 will be described in detail later. The illustrated locked body 30 is configured as a member separate from the operation cannula 20 and is fixed to the upper surface of the operation cannula 20 with bolts 34, but may be configured integrally with the operation cannula 20.

<Pinion 40>
The pinion 40 is for moving the operating can 20, and has teeth (pinion teeth) 43 that mesh with the rack teeth 23. The illustrated pinion 40 is an intermittent pinion. However, when the rack 23 is an intermittent rack, it is not necessarily required to be an intermittent pinion.

  The pinion 40 is rotatably attached to the housing 11 by a shaft 41. As shown in FIG. 1, a motor 13 is fixed to the housing 11, and a driving bevel gear 14 fixed to the output shaft of the motor 13 meshes with a driven bevel gear 15b, and is a flat surface integrated with the driven bevel gear 15b. The gear 15c meshes with the spur gear 16b, and the spur gear 16c integrated with the spur gear 16b meshes with the spur gear 40b integrated with the pinion 40. Accordingly, the pinion 40 is rotationally driven in the direction of the arrow RR or RL in FIG.

<Lock body 50>
The locking body 50 is mainly intended to act on the locked body 30 to lock the movement of the operating can 20, and comes into contact with the restricted portion 31 of the above-described locked body 30 to be locked. There is a restricting portion 51 that restricts the movement of the lock body 30 (therefore, the operation lever 20), and a restriction portion 52 that also contacts the restricted portion 32 and restricts the movement of the locked body 30 (therefore, the operation lever 20). is doing.

  2 includes an arm-shaped member 54 that is coaxially fixed to the pinion 40 and fixed to the pinion 40 with bolts 53, and rollers that are rotatably attached to both ends of the arm-shaped member 54 by shafts 55. 51, 52. These rollers 51 and 52 constitute the restriction portions 51 and 52.

  The roller 51 comes into contact with the pressed portion 31b of the locked body 30 (see FIG. 11) before the movement of the operation lever 20 by meshing with the rack 23 pinion 40 stops (see FIG. 11) and presses the pressed portion 31b to rack 23. The pressing portion 51 is configured to move the operating can 20 further than the movement stop position of the operating can 20 due to the engagement between the operating pin 20 and the pinion 40.

  Similarly, the roller 52 comes into contact with the pressed portion 32b of the locked body 30 before the movement of the operation lever 20 by the engagement of the rack 23 and the pinion 40 stops (see FIG. 5). The pressing portion 52 is configured to move the operating can 20 further than the movement stop position of the operating can 20 due to the pressing and engagement of the rack 23 and the pinion 40. These rollers 51 and 52 are rotatably provided by shafts 55 at positions corresponding to the meshing start portion and the meshing end portion of the rack 23 and the pinion 40 in the lock body 50.

<Operation>
Hereinafter, the operation of the turning machine 10 will be described. FIG. 2 shows a state in which the tipping motion in which the motion can 20 is moved in the direction of the arrow X2 is completed and the movement of the motion can 20 in the X1 direction is locked.

  In the case of performing a tipping operation in which the operating can 20 is moved in the arrow X1 direction from the state shown in FIG. 2, the pinion 40 is rotated in the RR direction by driving the motor 13. Note that the rotation of the pinion 40 continues until the tipping operation is completed (until the state shown in FIG. 8 is reached).

  When the pinion 40 rotates in the RR direction from the state shown in FIG. 2, in the example shown in FIG. 3, before the engagement between the pinion teeth 43 and the rack teeth 23 starts, the regulating portion 51 of the lock body 50 is locked. It is removed from the 30 regulated portions 31. As a result, the motion can 20 is in a state where it can move in the direction of the arrow X1. With further rotation of the pinion 40, the meshing of the pinion teeth 43 and the rack teeth 23 is started as shown in FIG. 4, whereby the operating can 20 starts to move in the direction of the arrow X1. However, the timing at which the restricting portion 51 is removed from the restricted portion 31 may be the same as or immediately after the engagement of the rack teeth 23 starts.

  When the operation pin 20 continues to move in the direction of the arrow X1 by further rotation of the pinion 40 and the end of the movement approaches, as shown in FIG. 5, before the engagement between the pinion teeth 43 and the rack teeth 23 is released, the pressing portion The cum regulating part 52 comes into contact with the pressed part 32 b of the locked body 30.

  Thereafter, as shown in FIG. 6, the engagement of the pinion teeth 43 and the rack teeth 23 is released, but at this time, the pressing portion / regulating portion 52 remains in contact with the pressed portion 32 b of the locked body 30. . Therefore, by further rotation of the pinion 40 (and thus the lock body 50), the pressed portion 32b is pressed by the pressing portion / restriction portion 52, and as shown in FIG. 7, the pressed portion / restriction portion 52 and the pressed portion 32b The operation lever 20 continues to move in the direction of the arrow X1 until the contact is released.

  In other words, the pressing portion 52 moves to a position where the movement of the operation lever 20 is stopped due to the engagement between the rack 23 and the pinion 40 (more specifically, if there is no pressing operation by the pressing portion 52, the engagement between the rack 23 and the pinion 40 The operation lever 20 is moved in the direction of the arrow X1 further than the position (see the virtual lines 23 and 24 in FIG. 8) that would have moved and stopped. The amount of movement is indicated by S in FIG.

  Due to the further rotation of the pinion 40 and the lock body 50 after the movement of the operation lever 20, as shown in FIG. 8, the pressing portion / restriction portion 52 comes into contact with the restricted portion 32. The movement in the direction is restricted, and the tipping operation ends.

  In this state (FIG. 8), the regulated portion 32 is configured by an arc surface centered on the rotation center O <b> 1 of the lock body 50, so that an external force in the direction of the arrow X <b> 2 is applied to the operation can 20. Even if it acts, the direction of the force F <b> 1 acting on the lock body 50 from the restricted portion 32 is the direction toward the pinion 40 and the rotation center O <b> 1 of the lock body 50. Therefore, since the moment which rotates the pinion 40 and the lock body 50 does not arise, regulation by the regulation part 52 is made reliably.

  In this state, even if the movement can 20 is about to move in the direction of the arrow X1 for some reason, the stopper 21 (see FIGS. 1 and 2) abuts against the inner surface of the housing 11 so that the arrow X1 of the movement can 20 Movement in the direction is also restricted.

  After that, when performing a tipping operation that moves the operation can 20 in the arrow X2 direction from the state shown in FIG. 8, the pinion 40 is rotated in the RL direction by driving the motor 13. Here, if the amount of movement S due to the pressing is too large, the pinion 40 is not engaged with the rack 23 when the pinion 40 rotates in the RL direction (RR direction in the case of reverse rollover operation). The movement amount S is set such that the rack 23 is positioned within a range in which the pinion 40 and the rack 23 can be engaged with each other.

  When the pinion 40 rotates in the RL direction, the switch 10 performs an operation in which the above-described operation is made symmetrical, and the state shown in FIG.

  The operation will be described with reference to FIGS. 8 to 13 and FIG. In the case of performing a tipping operation in which the operating can 20 is moved in the arrow X2 direction from the state shown in FIG. 8, the pinion 40 is rotated in the RL direction by driving the motor 13. Note that the rotation of the pinion 40 continues until the tipping operation ends (until the state shown in FIG. 2 is reached).

  When the pinion 40 rotates in the RL direction from the state shown in FIG. 8, before the meshing of the pinion teeth 43 and the rack teeth 23 begins, as shown in FIG. It is removed from the 30 regulated portions 32. As a result, the motion can 20 is in a state where it can move in the direction of the arrow X2. With further rotation of the pinion 40, the engagement of the pinion teeth 43 and the rack teeth 23 is started as shown in FIG. 10, whereby the movement can 20 starts to move in the direction of the arrow X2.

  As the pinion 40 continues to move in the direction of the arrow X2 by further rotation of the pinion 40 and the end of the movement approaches, the pressing portion is moved before the engagement between the pinion teeth 43 and the rack teeth 23 is released as shown in FIG. The cum regulating part 51 comes into contact with the pressed part 31 b of the locked body 30. After that, as shown in FIG. 12, the pinion teeth 43 and the rack teeth 23 are disengaged, but at this time, the pressing portion / regulating portion 51 remains in contact with the pressed portion 31 b of the locked body 30. . Therefore, by further rotation of the pinion 40 (and thus the lock body 50), the pressed portion 31b is pressed by the pressing portion / restricting portion 51, and the pressing portion / restricting portion 51 and the pressed portion 31b are pressed as shown in FIG. The operation lever 20 continues to move in the arrow X2 direction until the contact is released. In other words, the pressing portion 51 moves the operating can 20 further in the direction of the arrow X2 from the movement stop position of the operating can 20 due to the engagement between the rack 23 and the pinion 40.

  As a result of further rotation of the pinion 40 and the lock body 50 thereafter, as shown in FIG. 2, the pressing portion / restricting portion 51 comes into contact with the restricted portion 31, thereby restricting the movement of the operating can 20 in the direction of the arrow X <b> 1. The tipping operation ends.

  In this state (FIG. 2), the regulated portion 31 is configured by an arc surface centered on the rotation center O <b> 1 of the lock body 50, so that the regulation by the regulating portion 51 is reliably performed as described above. Further, in this state, even if the operation can 20 is going to move in the arrow X2 direction for some reason, the stopper 22 (see FIGS. 1 and 2) comes into contact with the inner surface of the housing 11, so Movement in the direction is also restricted.

<Effect>
According to the turning machine 10 as described above, the following operational effects are obtained.

  (A) The turning machine 10 is operated by meshing with an operating canister 20 having a rack 23 that moves to change the movable rail T of the railroad branching device 1, and by engaging with the rack 23 of the operating canister 20. 20 and 20, and at least one of the rack 23 and the pinion 40 is constituted by an intermittent rack or an intermittent pinion, and is provided with the pinion 40 and rotates with the pinion 40, and operation It is provided in the can 20 and moves together with the operation canister 20 and has restricted portion restricted portions 31 and 32 that come into contact with the lock body 50, and the restricted portions 31 and 32 come into contact with the lock body 50. Therefore, it is possible to perform a tipping operation with a simple configuration.

  And according to this rolling machine 10, the to-be-locked body 30 has a to-be-pressed part pressed against the locking body 50 before the regulated part 31 (32) abuts against the locking body 50. 31b (32b) is provided, and the locking body 50 has a pressed portion 31b (32b) in the locked body 30 before the movement of the operation lever 20 by the engagement of the rack 23 and the pinion 40 is stopped. And a pressed portion 51 (52) for pressing the pressed portion 31b (32b) to move the operating can 20 further than the movement stop position of the operating can 20 due to the engagement of the rack 23 and the pinion 40. A restricting portion 51 (52) is provided that abuts against the restricted portion 31 (32) of the locked body 30 after being pressed and moved at (52) and restricts the movement of the locked body 30. So when you fall After moving by meshing with the pinion 40, the punch 20 is further moved by being pressed by the pressing portion 51 (52). After that, the pressing portion 51 (52) is controlled by the restricted portion 31 (32 in the locked body 30). ) Is restricted from moving.

  Further movement of the operation lever 20 from the movement stop position due to the engagement of the rack 23 and the pinion 40 is caused by the contact between the pressing portion 51 (52) of the lock body 50 and the regulated portion 31 (32) of the lock body 30. It plays a role in absorbing gaps caused by wear due to contact. This point will be described with reference to FIG.

  FIG. 14 is a partially enlarged view of FIG. In FIG. 14, the virtual lines 23 and 43 indicate the positions where the rack 23 and the pinion 40 are moved in the direction of the arrow X 2, that is, if there is no pressing operation by the pressing portion 51, the rack 23 and the pinion 40 are engaged. The position (mesh release position) that would have been moved and stopped by is shown. S indicates a further movement amount of the operation lever 20 (and hence the rack 23) from the movement stop position due to the engagement of the rack 23 and the pinion 40. C shows an example of the amount of wear generated between the restricting portion 51 (52) and the restricted portion 31 (32) due to the long-term use of the turning machine 10. S1 indicates the components of the wear amount C in the directions of arrows X1 and X2.

  In FIG. 14, the imaginary lines 23 and 43 indicate the movement stop positions in the direction of the arrow X2 due to the engagement of the rack 23 and the pinion 40, so that the operation can 20 has an arrow X1 rather than the position indicated by the imaginary line 23 for some reason. If the pinion 40 rotates in the RR direction while being shifted in the direction, the improper meshing described with reference to FIG. 28 occurs. In other words, if the operation lever 20 is not shifted to the direction indicated by the arrow X1 from the position indicated by the virtual line 23, it will be said that inappropriate meshing does not occur.

  When the switch 10 of this embodiment is used for a long period of time, wear occurs between the restricting portion 51 (52) and the restricted portion 31 (32). The lock body 30 stops at a position shifted in the direction of the arrow X1 by S1 from the stop position (see solid line 30) in the initial use state in which no wear has occurred.

  However, as described above, improper meshing does not occur unless the stop position of the motion can 20 is shifted in the direction of the arrow X1 from the position indicated by the imaginary line 23. According to this embodiment, S1> S Unless this is the case, improper engagement will not occur.

  That is, the movement amount S of the movement can 20 further moved from the movement stop position due to the engagement of the rack 23 and the pinion 40 is the pressing portion 51 (52) of the lock body 50 and the restricted portion 31 of the lock body 30. As long as the gap C is not smaller than the size of the gap due to wear due to contact with (32) (more precisely, the components in the directions of the arrows X1 and X2) S1, the gap C1 is defined after the gap C is generated for some reason. Even if the operation can 20 moves so as to fill, the subsequent engagement of the pinion 40 and the rack 23 is appropriately performed.

  Therefore, the situation in which the teeth of the rack 23 and the pinion 40 are worn or shaved inappropriately is prevented for a longer period of time than before, and as a result, a proper rolling operation can be reliably obtained for a longer period of time than before. .

  (B) Further, in this embodiment, the pressing portions 51 and 52 are constituted by rollers provided so as to be rotatable with respect to the lock body 50, and the regulating portions (51 and 52) are also constituted by the rollers. Therefore, the wear of the pressing portion and the restricting portions 51 and 52 can be remarkably reduced, and an appropriate rolling operation can be reliably obtained over a longer period of time than before.

<Other embodiment 1>
FIG. 15 is a diagram showing another embodiment 1, and is a diagram showing a plan view of a main part and a side view thereof simultaneously. In the figure, the same reference numerals are given to the same or corresponding parts as those of the above-described embodiment.

  This embodiment is different from the above-described embodiment in that the restricting portion of the locked body 50 that contacts the restricted portions 31 and 32 of the locked body 30 is used as a tip circle (not shown) of the pinion 40. And the radius of curvature is composed of an arc body (fan body) 56 having the same arc surface 56c as the regulated portion 31 (32), and the pressing portions 51b and 52b are configured at the corners of both ends thereof. Other points remain the same. The corners of the circular arc body 56 forming the pressing portions 51b and 52b are provided with R so that the pressed portions 31b and 32b can be smoothly pressed, respectively.

  Also in this embodiment, an operation similar to that of the above-described embodiment can be obtained. That is, in the case of performing a tipping operation in which the operation can 20 is moved in the direction of the arrow X1 from the state shown in FIG. 15, the pinion 40 is rotated in the RR direction, and the restricting portion 56c of the lock body 50 is locked. The operation member 20 is moved in the direction of the arrow X1 by being removed from the regulated portions 31 of 30 and engaging the pinion 40 and the rack 23. When the end of the movement in the direction of the arrow X1 approaches, as shown in FIG. 16, the pressing portion 52 b is brought into contact with the pressed portion 32 b of the locked body 30 before the pinion teeth 43 and the rack teeth 23 are disengaged. Abut.

  Thereafter, the engagement between the pinion teeth 43 and the rack teeth 23 is released, but the pressing portion 52b remains in contact with the pressed portion 32b of the locked body 30, so that the further pinion 40 (and thus the locking body 50) Due to the rotation, the pressed portion 32b is pressed by the pressing portion 52b, and the operation lever 20 moves in the direction of the arrow X1 until the contact between the pressing portion 52b and the pressed portion 32b is released as shown in FIG. In other words, the pressing portion 52b moves the operating cannula 20 in the direction of the arrow X1 further than the movement stop position of the operating cannula 20 due to the engagement of the rack 23 and the pinion 40.

  By the further rotation of the pinion 40 and the lock body 50 thereafter, the restricting portion 56c comes into contact with the restricted portion 32, thereby restricting the movement of the operation can 20 in the arrow X2 direction, and the tipping operation is finished ( Although this state is not shown, it is a state symmetrical to the state shown in FIG. In addition, after that, when performing the tipping motion that moves the motion can 20 in the direction of the arrow X2, when the pinion 40 is rotated in the RL direction, the state shown in FIG. 15 is reached and the tipping motion ends. Also according to this embodiment, the same effect as the above (a) can be obtained.

<Other embodiment 2>
FIG. 18 is a diagram showing another embodiment 2, and is a diagram showing a plan view of a main part and a side view thereof simultaneously. In the figure, the same reference numerals are given to the same or corresponding parts as those of the above-described embodiment.

  This embodiment is different from the above-described embodiment in that the pressing portions 51 and 52 are respectively placed at positions corresponding to the engagement start portion and the engagement end portion of the rack 23 and the pinion 40 in the lock body 50. In addition to the rollers 51 and 52 rotatably provided at 55, the restriction part of the locking body 50 that contacts the restricted parts 31 and 32 of the locked body 30 is used as an addendum circle (not shown) of the pinion 40. ) And an arcuate body having a circular arc surface 56c that can contact the regulated portion 31 (32) and has a radius of curvature from the center O1 of the pinion 40 to the outer end of the roller 51 (52). It is in the point comprised with the (fan) 56, and there is no change in other points.

  In this embodiment, the corners of the circular arc body 56 that fixes the rollers 51 and 52 that form the pressing portions can be configured by curved surfaces having the same curvature radius as the radii of the rollers 51 and 52, respectively. Alternatively, it may be configured by a curved surface having a radius of curvature smaller than the radius of the rollers 51 and 52 by Δr.

  When the corner portion of the circular arc body 56 is configured by a curved surface having the same radius of curvature as the radii of the rollers 51 and 52, the restricting portion that contacts the restricted portion 31 is configured by the roller 51 (52) and the arc surface 56c. Is done.

  The corner of the arc 56 is formed by a curved surface having a radius of curvature smaller by Δr than the radius of the rollers 51 and 52 as shown in the figure, and the radius of curvature of the arc surface 56c is changed from the center O1 of the pinion 40 to the roller as shown in the figure. When the radius of curvature is smaller by Δr than the length to the outer end of 51 (52), the circular arc surface 56c basically does not contact the regulated portions 31 and 32. However, as shown in FIG. 25, when the motor 13 is controlled to rotate the pinion 40 until the pressing portion 52 (51) is released from the restricted portion 32 (31), the arrow of the operation can 20 The movement in the X2 direction is restricted by the regulated portion 32 (31) coming into contact with the circular arc surface 56c. That is, the circular arc surface 56c constitutes a restricting portion. Further, even when the radius of curvature of the circular arc surface 56c is set to a radius of curvature that is small by Δr, the pinion 40 prevents the rollers 51 and 52 from being worn or the pressing portion 52 (51) from being removed from the restricted portion 32 (31). When the motor 13 is controlled so as to rotate (see FIG. 18), for some reason, the arcuate surface 56c is also moved when the operating cannula 20 is about to move after the pinion 40 over-rotates from a predetermined position. Will come into contact with the regulated portions 31 and 32.

  Also in this embodiment, an operation similar to that of the above-described embodiment can be obtained.

  As a precaution, the operation will be briefly described with reference to FIGS. FIG. 18 shows a state in which the tipping motion in which the motion can 20 is moved in the direction of the arrow X2 is completed and the movement of the motion can 20 in the X1 direction is locked. This state shows a state in which the motor 13 is controlled so as to rotate the pinion 40 so that the pressing portion 51 (52) does not come off the restricted portion 31 (32).

  In the case of performing a tipping operation in which the operation can 20 is moved in the arrow X1 direction from the state shown in FIG. 18, the pinion 40 is rotated in the RR direction. Then, as shown in FIG. 19, before the engagement between the pinion teeth 43 and the rack teeth 23 starts, the restricting portion 51 or the arc surface 56 c of the locking body 50 is disengaged from the restricted portion 31 of the locked body 30. As a result, the motion can 20 is in a state where it can move in the direction of the arrow X1. With further rotation of the pinion 40, the meshing of the pinion teeth 43 and the rack teeth 23 is started as shown in FIG. 20, whereby the operating can 20 starts to move in the direction of the arrow X1.

  As the pinion 40 continues to move in the direction of the arrow X1 as the pinion 40 further rotates and approaches the end of the movement, as shown in FIG. 21, before the engagement between the pinion teeth 43 and the rack teeth 23 is released, the pressing portion 52 abuts on the pressed portion 32 b of the locked body 30.

  After that, as shown in FIG. 22, the pinion teeth 43 and the rack teeth 23 are disengaged, but at this time, the pressing portion 52 remains in contact with the pressed portion 32 b of the locked body 30. Accordingly, the pressed portion 32b is pressed by the pressing portion 52 by further rotation of the pinion 40, and the operation lever 20 is moved in the direction of the arrow X1 until the contact between the pressing portion and the pressed portion 32b is released as shown in FIG. Will continue to move on. That is, the pressing unit 52 moves the operating cannula 20 in the direction of the arrow X1 by S (see FIG. 24) further than the movement stop position of the operating cannula 20 due to the engagement of the rack 23 and the pinion 40.

  Then, by further rotation of the pinion 40 and the lock body 50, as shown in FIG. 25 through the state shown in FIG. 24, the restricting portion 56c can come into contact with the restricted portion 32. The movement in the X2 direction is restricted, and the tipping operation ends. The state shown in FIG. 25 shows a state in which the motor 13 is controlled to rotate the pinion 40 until the pressing portion 52 (51) is released from the restricted portion 32 (31). .

  After that, when performing a tipping operation in which the operation can 20 is moved in the arrow X2 direction from the state shown in FIG. 25, the pinion 40 is rotated in the RL direction by driving the motor 13. When the pinion 40 rotates in the RL direction, the switch 10 performs the operation that makes the above-described operation symmetrical to the left and right, and is in a state that is symmetrical with FIG. 25 or the state shown in FIG. finish.

  Also according to this embodiment, the same effect as the above (a) can be obtained. Furthermore, according to this embodiment, since the pressing parts 51 and 52 are constituted by rollers, the pressing operation by the pressing parts 51 and 52 can be smoothly performed, and at the same time the pressing parts 51 and 52 and the pressed parts 31b and 32b. In addition, even when the pinion over-rotates for some reason, the restricted portions 31 and 32 can be reliably regulated by the circular arc body 56.

<Modification>
FIG. 26 is a view showing a modification of the other embodiment 2 shown in FIG. 18, and is a view showing a plan view of a main part and a side view thereof simultaneously. In the figure, the same reference numerals are given to the same or corresponding parts as those of the above-described embodiment.

  18 differs from the embodiment shown in FIG. 18 in that the rollers 51 and 52 are rotatably supported in a state where both ends are supported by the shaft 55 inside the arc body 56, not on the side surface of the arc body 56. There are no other changes.

  With this configuration, since the rollers 51 and 52 are supported at both ends, a smoother rotation operation is obtained and wear is less likely to occur. Therefore, a reliable rolling operation can be performed over a longer period of time. can get. Further, since the rollers 51 and 52 are supported not inside the side surface of the arc body 56 but inside the arc body 56, the thickness of the rolling machine 10 in the direction of the axis 41 can be reduced.

  Although the present embodiment has been described in detail as described above, those skilled in the art can easily understand that many modifications can be made without departing from the novel matters and effects of the present invention. Accordingly, all such modifications are intended to be included in the scope of the present invention. For example, a term described at least once together with a different term having a broader meaning or the same meaning in the specification or the drawings can be replaced with the different term in any part of the specification or the drawings.

  1: Railway branching device, T: movable rail, 20: motion rail, 23: rack (rack tooth), 30: locked body, 31, 32: regulated portion, 31b, 32b: pressed portion, 40: Pinion, 50: Locking body, 51, 52: Restricting part (pressing part), 56: Arc body, 56c: Arc surface

Claims (3)

An operation canister having a rack that moves to change the movable rail of the railroad branching device, and a pinion that moves the operation cane by meshing with the rack of the operation canister, and the rack and the pinion At least one of them consists of an intermittent rack or an intermittent pinion,
A lock provided on the pinion and rotating together with the pinion;
The control unit is provided with the control unit, moves with the control unit, and has a controlled part that comes into contact with the lock body, and the control part is controlled to move when the control part comes into contact with the lock body. A tipping machine with a lock body,
The locked body is provided with a pressed portion that is pressed against the locking body before the regulated portion comes into contact with the locking body, and
Before the movement of the movement due to the engagement between the rack and the pinion is stopped, the lock body is brought into contact with the pressed portion in the locked body to press the pressed portion, and the rack and the pinion A pressing portion that moves the operating rod further than the movement stop position of the operating rod due to meshing with the locking rod, and a contact with the regulated portion of the locked body after being moved by being pressed by the pressing portion. A tipping machine comprising a restricting portion for restricting movement of the locked body. In claim 1,
While the said press part is comprised with the roller provided rotatably with respect to the said lock body, the said control part was also comprised with this roller, The turning machine characterized by the above-mentioned. In claim 1,
The pressing portion is constituted by rollers rotatably provided at positions corresponding to the meshing start portion and the meshing end portion of the rack and the pinion in the lock body,
The restricting portion is an arc body having an arc surface that is concentric with the tip circle of the pinion and whose radius of curvature is a length from the center of the pinion to the outer end of the roller and is capable of contacting the restricted portion. A tipping machine characterized by its construction.

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