JP3190317B2 - Electric point machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric switch for switching a tong rail between a localization and an inversion in the vicinity of a branch of a railway line.

[0002]

2. Description of the Related Art Conventionally, as this type of electric point machine,
For example, it is installed near a branch point of a track, has a driving means and an operation can, and a tip end of the operation can extends to and connected to a tong rail.

As shown in FIGS. 11 and 12,
When the motor M of the driving means starts and the motor shaft M1 rotates, the gears 1 and 2 constituting the power transmission mechanism as a reduction mechanism are driven.
When the conversion gear 3 is driven to rotate through the rotation of the transmission gear 3, the conversion roller 4 moves along the cam groove of the cam groove member 5, the operation can 6 is displaced, and the tong rail is changed. become. Also, each rotating shaft of the gears 1 and 2, and
The rotation axis of the conversion roller 4 is arranged so as to be arranged on an extension of the direction of the motor axis M1 of the motor M (the direction along the line).

[0004] Such an electric switch is generally installed beside a track, but a road (an automobile road or a sidewalk) is provided along the track like a track in a tram. There are many places where cars and people are allowed to enter or cross the track area, and it may not be possible to install a turning machine beside the track, and the road is opposite to the track If it is installed on the side, it is necessary to harmonize the point machine with the surrounding environment of the installation location as much as possible. Since it is necessary to install road signs and road signs, it is desired that the installation area of the point machine does not increase.

[0005]

However, in the above-mentioned conventional electric pointing machine, the gears 1 and 2 are arranged so as to be arranged on an extension of the motor M in the direction of the motor shaft M1 (along the line). Since each rotating shaft and the rotating shaft of the conversion roller 4 are arranged, the turning machine becomes long as a whole and cannot be harmonized with the surrounding environment of the installation place, and requires a large installation area. Therefore, there is a problem that it may not be installed.

The present invention has been made in view of such problems of the prior art, and makes it possible to reduce the size of the point machine as a whole and to achieve harmony with the surrounding environment of the installation place. In addition, an object of the present invention is to provide an electric point machine that can be installed in a space with severe restrictions while preventing an installation area from becoming too large.

[0007]

The gist of the present invention to achieve the above object lies in the following inventions. [1] An electric point turning machine for converting a tong rail between a localization and an inversion in the vicinity of a turnout of a track, and a driving means (30)
And in what has an operation | movement can (20), the said drive means (30) is accommodated in the point machine case (12), and a motor (M), a power transmission mechanism (40), a drive shaft ( 31), a slider (32), and a link mechanism (50). The motor (M) is disposed in an upper stage in the switch case (12), and the drive shaft (31) ) Is disposed in a lower stage in the switch case (12), and the power transmission mechanism (40) is disposed in a middle stage in the switch case (12), and the motor (M) is transmitted to the drive shaft (31), and the slider (32) reciprocates in the axial direction of the drive shaft (31) when the drive shaft (31) rotates forward and backward around the axis. As much as possible, it is screwed into a screw part (33) formed on the drive shaft (31). Ri, the link mechanism (50),
While its upper end engages the slider (32),
The lower end is connected to the operation can (20),
The operation can (20) is provided in the switch case (12).
Extending from the lower position to the tong rail, one end of which is connected to the link mechanism (50),
The other end is connected to the tong rail, the power transmission mechanism (40) has a relay shaft (41), and the relay shaft (41) is connected to the inside of the switch case (12). The first belt wheel (42) is disposed at the middle stage and has a large-diameter first belt wheel (42) and a small-diameter second belt wheel (43). And the second belt wheel (43) is connected to the drive shaft (31) via a second belt (45), and the second belt wheel (43) is connected to the drive shaft (31) via a second belt (45). Drive shaft (31)
A rotating shaft of the motor (M); and a relay shaft (41).
Is an electric switch characterized by being arranged substantially vertically with respect to each other and being arranged in parallel to the direction in which the operation can (20) extends.

[0008]

[0009]

[2] An electric turning machine for converting a tong rail between a localization and an inversion in the vicinity of a line branching device, comprising a driving means (30) and an operation can (20). The driving means (30) is provided with a point machine case (1).
2) is housed in the housing and includes a motor (M), a power transmission mechanism (40), a drive shaft (31), a slider (32), and a link mechanism (50). The drive shaft (31) is disposed at a lower stage in the switch case (12), and the power transmission mechanism ( 40) is arranged at the middle stage in the point machine case (12), and transfers the power of the motor (M) to the drive shaft (3).
1), the slider (32) is driven by the drive shaft (31) when the drive shaft (31) rotates forward and reverse around the axis.
The drive shaft (31) so that it can reciprocate in the axial direction of
The link mechanism (50) is screwed to a screw portion (33) formed at the upper end of the slider (3).
2), while the lower end thereof is engaged with the operating can (2).
0), and the operation can (20) is extended from the position below the point machine case (12) to the tong rail, and one end of the operation can (20) is connected to the link mechanism (5).
0), and the other end is connected to the tong rail, and the link mechanism (50) swings the upper link (51), the lower link (55), and the upper link (51). An upper pivot (54) pivotally supporting the lower link (55), and a lower pivot (58) pivotally supporting the lower link (55), wherein the upper pivot (54) and the lower pivot (58) are An electric pointing machine characterized by being located substantially vertically in a gap between the drive shaft (31) and the operating can (20).

[3] An installation structure for an electric switch for converting a tong rail between a localization and an inversion in the vicinity of a turnout of a track, wherein a road is provided along the track, and The point machine has a driving means (30) and an operation can (20), and the driving means (30)
Is housed in a switch case (12) and includes a motor (M), a power transmission mechanism (40), a drive shaft (31), a slider (32), and a link mechanism (50). And the motor (M) is connected to the point machine case (1).
2) The drive shaft (31) is disposed at the upper stage in
It is arranged at the lower stage in the point machine case (12),
The power transmission mechanism (40) is connected to the point machine case (1).
2) is disposed at the middle stage in the middle and transmits the power of the motor (M) to the drive shaft (31);
2) a screw portion (33) formed on the drive shaft (31) so that the drive shaft (31) can reciprocate in the axial direction of the drive shaft (31) when the drive shaft (31) rotates forward and reverse around the axis. ), The link mechanism (50) has an upper end engaged with the slider (32), and a lower end connected to the operating rod (20). (30) is the above-mentioned tong rail with a road in between,
The operation can (20) extends from a position below the switch case (12) to a tongue rail through a communication hole (HL) formed under the road. One end of the link mechanism (5)
0), the other end is connected to the tong rail, the power transmission mechanism (40) has a relay shaft (41), and the relay shaft (41) is Is located in the middle of the machine case (12),
It has a belt wheel (42) and a small-diameter second belt wheel (43), and the first belt wheel (42) is connected to a rotating shaft of the motor (M) via a first belt (44). The second belt wheel (43) is connected to the drive shaft (31) via a second belt (45), and the drive shaft (31) and the motor (M) are connected. And the relay shaft (41) are arranged substantially vertically with respect to each other, and are arranged in parallel to the direction in which the operating rod (20) extends. Installation structure of electric point machine.

Next, the operation of the invention described in each of the above items will be described. According to one configuration of the present invention, the motor (M) is provided in the upper, middle, and lower stages in the point machine case (12).
A power transmission mechanism (40) and a drive shaft (31) are provided, and a link mechanism (50) is provided below the drive shaft (31).
However, the operation canister (20) is arranged below the link mechanism (50).

That is, the components of the point machine are arranged side by side in the vertical direction, and although the height of the point machine in the vertical direction is increased to some extent, its installation area is small and the installation area is small. Does not impair the beauty of the surrounding environment.

[0014] The power of the motor (M) of the electric pointing machine is transmitted to the drive shaft (31) via a power transmission mechanism (40).
The drive shaft (31) rotates forward and reverse around the axis, and the drive shaft (31)
The slider (32) screwed into the threaded portion (33) of the first shaft reciprocates in the axial direction of the drive shaft (31). Slider (3
When 2) reciprocates, via link mechanism (50),
The movement can (20) is displaced, and the tongue rail is switched between the normal position and the reverse position.

Further, according to another configuration of the present invention, the drive shaft (31) and the rotation shaft of the motor (M) are connected to the operation shaft (2).
0) is arranged in parallel with the direction in which the tongue rail is extended. The point machine case (12) has a length in the depth direction obtained by adding a predetermined gap or the like to the length in the rotation axis direction of the motor (M) housed therein. Therefore, if the drive shaft (31) extends in the same direction as the rotation axis direction (depth direction) and is set within the length in the depth direction, the drive shaft (31) is particularly arranged. By doing so, the length of the switch case (12) in the depth direction does not unnecessarily increase.

That is, in the installation area of the point machine,
Spreading in the depth direction (the direction in which the tongue rail extends) is allowed to some extent, but the width direction perpendicular to the depth direction (the direction parallel to the direction in which the line extends) can be considerably reduced. Thereby, in a direction parallel to the direction in which the track is extended, it becomes possible to install the main body in a narrow space where restrictions are severe.

Further, according to another configuration of the present invention, a belt transmission is used as a power transmission mechanism (40) for transmitting the power of the motor (M) to the drive shaft (31). is there. Also, the relay shaft (4) of the power transmission mechanism (40)
1) is arranged in parallel with the direction in which the operation canister (20) is extended.

Similar to the drive shaft (31), the relay shaft (41)
Since the operating can (20) is arranged in parallel with the direction in which the operating can (20) is extended, if the relay shaft (41) is also set within the length in the depth direction of the point machine case (12), particularly, By disposing the relay shaft (41), the case (1
2) The length in the depth direction is not unnecessarily increased, and the size of the apparatus can be reduced.

When the rotation shaft of the motor (M) rotates, the first
By rotating the large-diameter first belt wheel (42) via the belt (44) and rotating the first belt wheel (42),
When the relay shaft (41) and the small-diameter second belt wheel (43) rotate, and the second belt wheel (43) rotates, the drive shaft (31) rotates via the second belt (45). As the first belt (44) and the second belt (45) rotate, the power of the motor (M) is transmitted to the drive shaft (31), and the first belt (44) is moved to the first belt wheel (42). Depending on the belt wrapping transmission in which the second belt (45) comes into contact with the second belt wheel (43), a chain wrapping transmission in which a chain and a sprocket, which are metal materials, contact each other, or a metal There are few noise generation factors such as a gear transmission in which gears of materials contact each other, and this machine can be installed on a road along a city.

Further, according to another configuration of the present invention, the upper pivot (54) and the lower pivot (58) of the link mechanism (50) are connected between the drive shaft (31) and the operation canister (20). It is arranged in the gap. As described above, the length in the depth direction of the switch case (12) is sufficient to accommodate the motor (M), and accommodates the link mechanism (50) within the length in the depth direction. When the link mechanism (50) is provided, the length of the switch case (12) in the depth direction is not unnecessarily increased, and the machine can be reduced in size. can do. When the motor (M) starts, the drive shaft (31) rotates via the power transmission mechanism (40), and when the slider (32) reciprocates by the rotation of the drive shaft (31), the slider (3)
The upper link (5) of the link mechanism (50) connected to 2).
1) swings about the upper pivot (54), and the lower link (55) connected to the upper link (51) swings about the lower pivot (58), and moves to the lower link (55). The connected operation rod (20) converts the tong rail between the localization and the inversion.

According to another embodiment of the present invention, the driving means (30) is disposed on the opposite side of the road from the tong rail, and the operating can (20) is formed under the road. It extends to the tong rail through the hole (HL).

[0022] Such a structure for installing a switch can be used, for example, when a switch cannot be installed beside a track.
It is adopted in the case of a point machine in a tram.
In other words, the driving means (30), which is a main part of the machine, has the components of the point machine arranged vertically,
Since it is small as a whole and does not require a large installation area, it can be arranged in a narrow installation space opposite to the tong rail with a road in between.

The operation rod (20) for connecting the driving means (30) and the tong rail is passed through a communication hole (HL) formed under the road, and is not directly exposed to the public. Therefore, the beauty of the road environment can be directly maintained, and safety can be ensured because the road environment is not touched.

[0024]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. As shown in FIGS. 1 to 3, an electric point machine is used as a point switch of a tramway, and a road (motorway, sidewalk) is run along the track.
Is provided. A turnout is provided on the track, and the turnout is configured such that a tongue rail (both not shown) can be converted to a main rail. An electric switch for converting the tongue rail between the localization and the inversion is provided by a switch case 12 forming the main body of the electric switch, which is located on the opposite side of such a switch (not shown) between the road and the road. Is provided.

Below the switch case 12, one end of an operation can 20 is arranged, and the other end of the operation can 20 extends through a communication hole HL provided below the road on the tongue rail side. And is connected to the tong rail.

As shown in FIGS. 1 to 4, the switch case 12 is box-shaped, and the inside thereof is separated by a partition 13 into a front chamber 14 and a rear chamber 14 in the depth direction (left and right directions as viewed in FIG. 1). Room 1
There are five. The depth direction is the movement can 20
Corresponds to the direction extending toward the tongue rail.

A driving means 30 is accommodated in the switch case 12. The drive means 30 includes a motor M, a power transmission mechanism 40, a drive shaft 31, a slider 32, and a link mechanism 50.
And a slide position detecting means 60.

The motor M is connected to the front chamber 1 of the switch case 12.
4 and is supported by the front wall 16 and the partition 13 of the switch case 12, and is arranged such that the rotation axis of the motor M is directed in the depth direction. The tip of the rotating shaft projects through the lower hole of the partition 13 toward the rear chamber 15, and a small-diameter pulley M1 is fixed to the tip of the rotating shaft.

As shown in FIG. 1 and FIGS. 5 to 7, the drive shaft 31 is arranged at a lower stage of the switch case 12.
The drive shaft 31 includes the front wall 16 of the switch case 12 and the partition wall 1.
3 is rotatably supported by a bearing member provided on the first and third members. The drive shaft 31 is directed in the depth direction, like the rotation shaft of the motor M. The tip of the drive shaft 31 projects through the lower hole of the partition 13 toward the rear chamber 15, and a large-diameter pulley 35 is fixed to the tip of the drive shaft 31. The drive shaft 31 on the front chamber 14 side of the switch case 12 is screwed with a screw portion 33 which is a male screw, and a slider 32 is screwed into the screw portion 33.

The slider 32 is configured to be able to reciprocate in the axial direction of the drive shaft 31 when the drive shaft 31 rotates forward and reverse around the axis. Slide pins 34 are implanted on both sides of the slider 32, and a guided block 341 is fixed to each slide pin 34. A pair of guide rods 342 are installed between the partition wall 13 and the front wall 16, and the guided block 341 is mounted on the guide rods 342 by the drive shaft 31.
Is fitted so as to be movable in a direction parallel to the axial direction.

The power transmission mechanism 40 is a belt transmission, which is disposed in the middle of the rear chamber 15 of the case 12 for transmitting the power of the motor M to the drive shaft 31.

The power transmission mechanism 40 has a relay shaft 41. The relay shaft 41 is disposed in the middle of the rear chamber 15 of the switch case 12. The relay shaft 41 is directed in the depth direction, similarly to the drive shaft 31. A large-diameter first belt wheel 42 and a small-diameter second belt wheel 43 are fixed to the relay shaft 41. Pulley M1 and first belt wheel 42
The first belt 44 is wound around the second belt wheel 4
A second belt 45 is wound around the pulley 3 and the pulley 35.

The link mechanism 50 is arranged at a lower stage of the switch case 12. The link mechanism 50 includes an upper link 51
And a lower link 55. Upper link 51
Are pivotally supported by an upper pivot 54. A cam edge 52 is formed at the upper end of the upper link 51 and is in sliding contact with the slide pin 34. Upper link 51
An engagement pin 53 is fixedly provided at the lower end portion of the.

On the bottom surface of the front chamber 14 of the switch case 12, a lower cover 18 for covering a lower hole formed in the bottom surface from the outside is mounted. The lower cover 18 is provided on both side walls 1.
81 and a bottom part 182. Lower cover 1
A lower pivot 58 is erected on both side walls 181 of the bracket 8, and the lower link 55 pivotally supports the lower link 55. The lower link 55 includes an upper link 551 fixed to an intermediate portion of the lower pivot 58, and a pair of lower links 552 fixed to both ends of the lower pivot 58, respectively.

An engaging pin 53 is engaged with a concave portion 56 formed at the upper end of the upper link 551. The lower ends of the pair of lower links 552 protrude below the bottom surface 182 of the lower cover 18, and a connecting rod 59 is provided at the lower ends of the pair of lower links 552.
A connecting pin 57 is fixed to the center of the connecting rod 59. The connecting pin 57 connects the base end of the operating can 20 to the lower end of the lower link 55. The tip of the operation can 20 extends to a tong rail (not shown) through a communication hole HL formed below the road. That is, the switch case 12 is disposed on the opposite side of the road from the tong rail (not shown).

As shown in FIGS. 1 to 3, the upper pivot 54 and the lower pivot 58 are located substantially vertically in the gap between the drive shaft 31 and the operation can 20. FIG. 1 and
As shown in FIGS. 8 to 10, a slide position detecting means 60 is provided in a gap between the motor M and the drive shaft 31 in the front chamber 14 of the point machine case 12. An intermediate portion between a pair of detection arms 61 and 62 is pivotably attached to the switch case 12.

A roller 63 located on the movement locus of the slider 32 is provided at each end of the detection arms 61 and 62. The base ends of the detection arms 61 and 62 are connected by a connection rod 64 and a connection plate 65. A detection pin 66 is implanted in the connection plate 65,
The detected pin 66 is engaged with a concave portion 68 formed at the tip of the interlocking arm 67. The base end of the interlocking arm 67
A sensor body 69 provided outside the switch case 12
Stretched to the side. The sensor body 69 includes the slider 3
2 to output the position detection signals (localization signal and inverted signal).

Next, the operation of the above embodiment will be described.
This point machine is located in the upper part of the internal space of the point machine case 12,
Motor M and power transmission mechanism 40 in the middle and lower stages,
The drive shafts 31 are respectively arranged, the link mechanism 50 is arranged below the drive shaft 31, and the operation cans 20 are arranged below the link mechanism 50. As a result, the components of the point machine are integrated in the vertical direction, so that the point machine does not have to spread in the horizontal direction (depth direction or width direction). No area is required.

The drive shaft 31 and the relay shaft 41 of the power transmission mechanism 40 extend in a direction parallel to the rotation axis direction of the motor M, and the switch case 12 is accommodated therein. Since it has a length in the depth direction obtained by adding a predetermined gap to the length in the rotation axis direction of the motor M, the drive shaft 31
In addition, the relay shaft 41 can be easily accommodated within the length in the depth direction, and in particular, the drive shaft 31 and the relay shaft 41
, It is not necessary to extend the switch case 12 in the depth direction.

[0040] Such a point machine, like a tram,
It is used when a road is provided along the track and it is difficult to provide a location for installing a point machine beside the track. That is, the driving means 30 of the switch is disposed on the side opposite to the tong rail (not shown) with the road therebetween, and the operation can 20 is passed through the communication hole HL formed below the road to the tong rail. To be extended.

When the tongue rail is in the normal position, the slide pin 34 is screwed to the right end of the screw portion 33 of the drive shaft 31 in FIG. 1, and the detection arms 61 and 62 are swung to the left in FIG. The detected pin 66 and the interlocking arm 67 are also swung to the left in FIG. Sensor body 6
No. 9 detects that the tongue rail is in the normal position.

When the motor M is started to reverse the tongue rail, the pulley M1 rotates and the first belt 44 is rotated.
When the large-diameter first belt wheel 42 rotates through the first belt wheel 42 and the first belt wheel 42 rotates, the relay shaft 41 and the small-diameter second belt wheel 43 rotate, and when the second belt wheel 43 rotates, The pulley 35 rotates via the second belt 45, and the drive shaft 31 rotates.

That is, using the first belt 44 and the second belt 45, the first belt 44 and the second belt 45
Makes a belt transmission in which the power of the motor M is transmitted to the drive shaft 31. As the transmission, a chain wrapping transmission or a gear transmission can be considered, but in comparison with those transmissions in which metal materials come into contact with each other, a belt transmission has a rubber material and a metal material in contact with each other. Therefore, noise during operation can be suppressed low.

When the drive shaft 31 is rotationally driven, the drive shaft 3
The slider 32 screwed to the first slide pin 34 moves in the axial direction of the drive shaft 31, and the slide pin 34 moves,
The slide pin 34 moves to the left in FIG. 1 along the cam edge 52 of the upper link 51.

When the slide pin 34 moves leftward along the cam edge 52 of the upper link 51, the upper link 51 swings about the upper pivot 54 in the counterclockwise direction in FIG. When the upper link 51 swings counterclockwise, the engaging link 53 of the upper link 51 is engaged with the concave portion 56 of the upper link 551 of the lower link 55, so that the upper link 551 is centered on the lower pivot 58. 1, the lower link 552, the connecting rod 59, and the connecting pin 57 are also connected to the upper link 551.
When the connecting pin 57 swings clockwise as a unitary motion, the operating rod 20 swings leftward in FIG.

The slide pin 34, the upper link 51, and the lower link 55 are all in the depth direction (moving can 20).
Move in parallel with the direction of extension of the tongue rail) or swing, so that the movement of the slide pin 34 is directly transmitted to the upper link 51 and the lower link 55 without any special components. The operation can 20 can be operated, and the number of components can be reduced.

When the operating rod 20 swings and the tongue rail is turned to the reverse position, the detecting arms 61 and 62 move back and forth.
1 is swung clockwise in FIG. 1, the detected pin 66 and the interlocking arm 67 are swung to the right in FIG. 1, and the sensor body 69 detects that the tong rail has been turned to the opposite position, thereby the motor M Stops.

In the above-described embodiment, the link mechanism has the two link members of the upper link and the lower link. However, the present invention is not limited to this. May be.

Further, as the power transmission mechanism, the first belt 4
Although the belt transmission including the fourth belt 45 and the second belt 45 is used, the invention is not limited to this, and any device may be used as long as it can transmit the power of the motor M to the drive shaft 31. In this case, it is desirable that the power transmission mechanism has low noise during operation.

[0050]

As described above, according to one configuration of the present invention, the motor, the power transmission mechanism, and the drive shaft are arranged in the upper, middle, and lower stages in the point machine case. A link mechanism is provided below the drive shaft, and an operating rod is provided below the link mechanism.Each component of the point machine is arranged in a line in the up-down direction. Although the height is increased in the vertical direction, the overall size is reduced without being lengthened in the width direction and the depth direction, and harmony with the surrounding environment of the installation location can be achieved. Further, since the space in the vertical direction of the installation location can be effectively used, the installation area of the point machine can be reduced.

According to another configuration of the present invention, the drive shaft and the rotating shaft of the motor are arranged in parallel to the direction in which the operating rod extends to the tongue rail. In the installation area, the spread in the depth direction (the direction in which the tong rail is extended) is allowed to some extent, but the width direction perpendicular to the depth direction (the direction parallel to the direction in which the line is extended) is considerably reduced. be able to. Thereby, in a direction parallel to the direction in which the track is extended, it becomes possible to install the main body in a narrow space where restrictions are severe.

Further, according to another configuration of the present invention, a belt wrapping transmission device is used as a power transmission mechanism for transmitting the power of the motor to the drive shaft, and the first belt is a first belt wheel. Depending on the belt wrapping transmission that comes into contact with the second belt wheel, the chain wrapping transmission that makes contact between the chain and the sprocket, which are metal materials, or the gears that are made of metal material Noise can be reduced compared to contacting gear transmission,
This unit can be installed along the roadside of cities.

Further, according to another configuration of the present invention, the upper pivot and the lower pivot of the link mechanism are arranged in the gap between the drive shaft and the operation can, so that the depth of the switch case in the depth direction is reduced. The length is long enough to accommodate the motor,
It is possible to accommodate the link mechanism within the length in the depth direction, and if it is accommodated, by disposing the link mechanism, the length of the point machine case in the depth direction does not become unnecessarily long, This device can be downsized.

Further, according to another configuration of the present invention, the driving means is disposed on the opposite side of the road from the tong rail, and the operating rod passes through the communication hole formed under the road to the tong rail. Since it is extended, it is not possible to install a point machine beside the railroad track. For example, it can be adopted as an installation structure in the case of a point machine in a tram. In addition, since the operation rod that should connect the driving means and the tong rail is passed through a communication hole formed under the road and is not directly exposed to the public, it is possible to directly maintain the beauty of the road environment. Also, safety can be ensured without touching people.

[Brief description of the drawings]

FIG. 1 is a sectional view taken along line II of FIG. 3;

FIG. 2 is a side view of the electric switch according to the first embodiment of the present invention.

FIG. 3 is a front view of the electric pointing machine according to the first embodiment of the present invention.

FIG. 4 is a plan view of the electric switch according to the first embodiment of the present invention.

FIG. 5 is a sectional view taken along line VV of FIG. 2;

FIG. 6 is a rear view showing the electric pointing machine according to the first embodiment of the present invention, partially cut away;

FIG. 7 is a sectional view taken along line VII-VII of FIG. 2;

8 is a view taken in the direction of the arrow VIII in FIG. 3 and is a view partially broken away.

FIG. 9 is a sectional view taken along line IV-IV of FIG. 8;

FIG. 10 is a sectional view taken along line XX of FIG. 8;

FIG. 11 is a plan view of an electric pointing machine according to a conventional example.

FIG. 12 is a front view of an electric pointing machine according to a conventional example.

[Explanation of symbols]

 HL: communication hole M: motor M1: pulley 12: point machine case 13: partition wall 14: front room 15 ... rear room 16: front wall 17 ... rear wall 18 ... lower cover 20 ... operating rod 30 ... driving means 31 ... Drive shaft 32 Slider 33 Screw part 34 Slide pin 35 Pulley 40 Power transmission mechanism 41 Relay shaft 42 First belt wheel 43 Second belt wheel 44 First belt 45 Second belt 50 Link Mechanism 51 ... Upper link 52 ... Cam edge 53 ... Engagement pin 54 ... Upper pivot 55 ... Lower link 56 ... Recess 57 ... Connection pin 58 ... Lower pivot 59 ... Connection rod 60 ... Slide position detection means 61, 62 ... Detection arm 63 ... Roller 64 ... Connecting rod 65 ... Connecting plate 66 ... Detected pin 67 ... Interlocking arm 68 ... Concave part 69 ... Sensor body 181 ... Both sides 182 ... Bottom Part 341 Guided block 342 Guide rod 551 Upper link 552 Lower link

──────────────────────────────────────────────────続 き Continuation of front page (56) References JP-A-56-160266 (JP, A) JP-A-3-28069 (JP, A) JP-A-4-149301 (JP, A) 21101 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) B61L 5/06 E01B 7/00

Claims (3)

(57) [Claims] 1. An electric switch for converting a tong rail between a localization and an inversion in the vicinity of a turnout of a line, comprising a driving means and an operation rod, wherein the driving means comprises: Housed in the machine case,
A motor, a power transmission mechanism, a drive shaft, a slider, and a link mechanism, wherein the motor is disposed in an upper stage in the switch case; and the drive shaft is the switch case. The power transmission mechanism is disposed at a middle stage in the point machine case, and transmits the power of the motor to the drive shaft. The screw mechanism is screwed to a screw portion formed on the drive shaft so as to be able to reciprocate in the axial direction of the drive shaft when the drive shaft is rotated forward and reverse around the axis, and the upper end of the link mechanism is connected to the slider. The lower end is connected to the operating can while engaging with the operating can. The operating can extends from a position below the switch case to the tong rail, and one end of the operating mechanism is connected to the link mechanism. While the other end is The power transmission mechanism has a relay shaft, and the relay shaft is disposed in a middle stage in the point machine case, and has a large-diameter first belt wheel and a small diameter. The first belt wheel is connected to the rotating shaft of the motor via a first belt, and the second belt wheel is connected via a second belt, The drive shaft, the drive shaft, the rotation shaft of the motor, and the relay shaft are arranged substantially vertically with respect to each other, and with respect to a direction in which the operation rod is extended. An electric point machine characterized by being arranged in parallel. 2. An electric turning machine for converting a tongue rail between a localization and an inversion in the vicinity of a turnout of a line, comprising a driving means and an operation rod, wherein the driving means comprises a Housed in the machine case,
A motor, a power transmission mechanism, a drive shaft, a slider, and a link mechanism, wherein the motor is disposed in an upper stage in the switch case; and the drive shaft is the switch case. The power transmission mechanism is disposed at a middle stage in the point machine case, and transmits the power of the motor to the drive shaft. The screw mechanism is screwed to a screw portion formed on the drive shaft so as to be able to reciprocate in the axial direction of the drive shaft when the drive shaft is rotated forward and reverse around the axis. The lower end is connected to the operating can while engaging with the operating can. The operating can extends from a position below the switch case to the tong rail, and one end of the operating mechanism is connected to the link mechanism. While the other end is The link mechanism includes an upper link, a lower link, an upper pivot that pivotally supports the upper link, and a lower pivot that pivotally supports the lower link. The upper pivot and the lower pivot are located substantially vertically in a gap between the drive shaft and the operation can. 3. An installation structure of an electric switch for converting a tong rail between a localization and an inversion in the vicinity of a turnout of a track,
In the case where a road is provided along the track, the electric point machine has a driving unit and an operation rod, and the driving unit is housed in a case of the point machine,
A motor, a power transmission mechanism, a drive shaft, a slider, and a link mechanism, wherein the motor is disposed in an upper stage in the switch case; and the drive shaft is the switch case. The power transmission mechanism is disposed at a middle stage in the point machine case, and transmits the power of the motor to the drive shaft. The screw mechanism is screwed to a screw portion formed on the drive shaft so as to be able to reciprocate in the axial direction of the drive shaft when the drive shaft is rotated forward and reverse around the axis, and the upper end of the link mechanism is connected to the slider. The engaging means has a lower end connected to the operating can, and the driving means is disposed on a side opposite to the tong rail with a road therebetween, and the operating can is From the lower position of the machine case under the road The power transmission mechanism is extended to the tongue rail through a formed communication hole, one end of which is connected to the link mechanism, and the other end is connected to the tongue rail. A relay shaft, wherein the relay shaft is disposed in a middle stage in the point machine case, and includes a large-diameter first belt wheel and a small-diameter second belt wheel; The vehicle is connected to a rotation shaft of the motor via a first belt, and the second belt vehicle is connected to the drive shaft via a second belt. A rotary shaft of a motor and the relay shaft are arranged substantially vertically with respect to each other, and are arranged in parallel with a direction in which the operating rod extends. Machine installation structure.