JPS60131363A - Trailing indexing type switch - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] (Industrial application field) The present invention relates to a backward indexing type switching machine.

(Prior Art) Conventionally, backward indexing type point machines have been used, for example, in some parts of turnouts for siding lines and garage lines in steelworks.

However, conventional backward indexing type point machines cannot be used on main lines due to safety against vibrations during opposite operation and reliability of backward indexing operation.

(Objective of the Invention) An object of the present invention is to provide a reverse indexing type point machine that can be used on main lines.

(Structure of the Invention) In order to achieve the above object, the present invention provides a backward indexing type point machine having a first rack portion and a first operation capable of rectilinear movement and reversal between normal position and reverse position. In addition to connecting the movement to one force of the tongue rail, a second movement movement having a second rank part and capable of rectilinear reversal of 11 teeth between the normal position and the reverse position is connected to the other force of the tongue rail. a first half gear in which a tooth portion capable of meshing with the rack portion is formed on approximately half of the outer periphery; and the tff
The S2 rack part and the second half gear whose meshable southern part is formed in approximately half of the outer circumference are fixed to the same conversion shaft, and are engaged with the first half gear 11a in the normal position, and the first half gear The first to idle 1j! , lJ notch is formed in the ft5l operating rod, and engages with the second half gear in the opposite position,
A second notch for idling the half gear ' The culms are connected by a key block, a drive disk is fixed to the conversion shaft, and an annular large tooth 1, which is connected to the drive motor via a buffer clutch and has a protrusion on its inner peripheral surface, is attached to the conversion shaft. provided so as to be rotatable at the center, and at intervals larger than the width of the protrusion,
A pair of engaged protrusions are disposed on both sides of the protrusion and engage with the protrusion so as to transmit motion, and a positioning notch and a positioning notch formed at positions corresponding to normal position and reverse position, respectively A holding disk having a reversal notch is provided at the pivot opening about the conversion shaft, and the driving disk and holding disk are operated to hold the non-adjustable side rail of the tongue rail with a predetermined force. A spring member is provided that is communicably connected, and the spring member is reversibly displaceable between a release position in which the positioning member is removed from the positioning notch and a position in which the positioning position is engaged with the positioning notch at the end of the conversion to the positioning position. In addition to providing a 1-stopper, the release position, which is removed from the reversal notch, is reversed when the conversion to the reversal position is completed! A second stopper capable of reversing displacement H is provided between a locking position where the drive disk engages with the locking position, and a second stopper is provided which displaces the first stopper to the release position at the initial stage of rotation of the drive disk from the normal position. 1 inclined part and a second inclined part that displaces the second stopper to the released position at the beginning of rotation of the driving disk from the reverse position, and the first inclined part rotates integrally with the driving disk. An annular force J/plate is provided, and the first stopper is displaced to the release position while the annular large gear rotates from the normal position until the protrusion engages with one of the engaged protrusions. The second stopper is displaced to the release position while the first #l oblique portion and the annular canine tooth 111 rotate from the reverse position until the protrusion engages with the other of the engaged protrusions. A second annular cam plate is provided, which has a second inclined part and rotates together with the annular large gear, and is displaceable in conjunction with one of the tongue rails. furthermore, at the end of the conversion to the normal position, it engages with the first stopper and is interlocked with the displacement to the engagement 111 position, so as to displace the reference rod for the normal position. The first interlocking lever that engages and disengages from the rod is swingably provided, and when the conversion to the opposite position is completed,
A second sliding lever that engages with the second collar and engages with and disengages from the reversal reference rod in conjunction with the displacement to the engagement 11-position is swingably provided, and A two-position positioning circuit controller that engages with the lever and operates according to its swinging; and a two-position reversal circuit controller that engages with the second interlocking lever and operates according to its swinging. This is a backward indexing type switching machine with the following features.

(Example) Each embodiment of the present invention will be described below based on one drawing.

ε(S Figures 1 to 13 show the first embodiment of the present invention, and Figure 1 shows a backward indexing type point machine (1) stationary type 1
411)
is an enlarged plane IA with the difference removed.

As shown in FIGS. 1 to 3, the basic rail (R1).

The backward indexing type point machine (1) that converts the i-ng rail (TI) and (T2) into normal position, reverse position, and A reversible first movement rod (2), a second movement rod (3), a localization examination rod (4), and a reversible examination rod (5) are provided.

The first operating stroke (2) is connected to the tongue rail (T1) by the connecting rod l'' (rl), the second operating rod (3) is connected to the tongue rail (T2) by the connecting rod (T2), and the stereotactic inspection rod ( U connects the tongue rail (
Tl), and the reversal reference rod (5) is connected to the connecting loft (T
4) respectively connected to the tongue rails (T2).

As shown in Figures 3 to 5, the point machine (1)
includes a motor (M) and a bevel pinion (12) connected to the shaft of the motor (M) via a coupling (11).
, a buffering friction multi-disc clutch (14) disposed in the middle of the first reduction gear (13), and a heperbinion (12) fixed to the clutch case of the buffering friction multi-disc clutch (14). The meshed bevel gear (14a), the hand-crank handle socket (15) installed at one end of the first reduction shaft (13), and the small gear (16) fixed to the other end of the first reduction shaft (13). and a second gear having a gear (17) meshing with the small gear (16) and a binion (18) at both ends.
A deceleration shaft (18) is provided.

As shown in FIGS. 3 to 5 and 7 to 9,
The switch machine (1) includes a rotatably supported switching shaft (6), a driving disk (6O) fixed to the switching shaft (6) by a key (8a), and the pinion. (18)
an annular canine tooth 11f (+31) that meshes with the drive disk (60) and is rotatably supported by the drive disk (60) about the conversion shaft (6);
A stereotactic notch (62a) and a reversal notch (62b) formed at positions corresponding to the orthotaxic and reversal positions, respectively.

and stereotactic notch (f32a) and anti-positional notch (82b)
and a holding disk ([12c) supported rotatably by the conversion shaft (6).
62), and the engaging part 11 (63a) is the stereotactic notch (62a)
The rotation shaft (83
b) The first stopper (63) capable of 11π dynamic reversal around
Then, the engagement 1 part (84a) or the engagement 1 part (84a) that engages with the reversal notch (62b) is connected to the outer periphery cam part (82
c), and a second stop lever (64) capable of swinging and reversing i+7 about the rotation axis (84b) between the second stop lever (64) and the release position engaged with the second stopper (64).

As shown in FIGS. 8 and 9(A), the drive disk (60) has a pair of first spring engaging protrusions (60a).

(60b) is formed.

As shown in FIG. 8 and tJS9 (B), a protrusion (61a) is formed on the inner peripheral surface of the annular large tooth 1f (61).

No. 8b4 and No. 91Δ(E) have zl (as shown), and Hohatisuku (62) has 1i11 protrusion ([1la)
No. III The projections (81a) are arranged on both sides of the protrusion (61a) at intervals larger than (X) by the amount of play (Y).
a) and a pair of engaged projections (
82d) and (82e) are formed, and a pair of second spring engaging protrusions (82F) and (62g> are formed at the same spacing as the first spring engaging protrusions (60a) and (Bob). has been done.

Then, as shown in FIGS. 7 and 9(F), the spring member (65) engages the first spring engaging protrusion (
60a), (tlob) and between the second spring engaging protrusion (
62f).

(f12g) is held in a compressed state. Therefore, the driving disk (60) and the holding disk (62)
) means the operating body 1i-1:) via the spring member (65).
It is connected to the function.

As shown in FIG. 7, FIG. 8, and FIG. 9 (D), the first annular member 11 can rotate integrally with the drive disk (60).
A plate (66) is connected to the drive disk (60) by a connecting pin (80c), (Sod). The first annular cam plate (66) is provided with a first stopper [63] in the engagement position at the initial stage of rotation of the drive disk (60) from the normal position.
+i/, 1 to the locking part (
'A 1 (u'i oblique part (66
a), at the beginning of the rotation of the drive disk (60) from the reverse position, a part of the engagement 11 (84a) is engaged [ 6. As shown in FIG. 7, 81Δ and u591Δ(C), a second annular gear (61) that can rotate integrally with the large annular gear (61) is formed. The cam plate (67) has two connecting pins (Blb), (61b)
It is bound to the ring-shaped large tooth 11C (81). The Q'52 annular cut/plate (67) has an annular large gear (61
) at the beginning of the rotation from the normal position (while the large ring gear (61) rotates from the normal position by the amount of play (Y)), the first stroke
A first inclined portion (87a) that can be engaged with the locking portion (B3a) that displaces the pump (63) from the locking position to the release position, and the annular large tooth ■1 (61) from the opposite position. At the beginning of the rotation (while the annular canine tooth 1j (61) rotates from the opposite position by the amount of play (Y)), a portion of the engagement 11 is arranged to displace the second stopper (64) from the engagement 6Z position to the release position. (B4a). As shown in FIGS. 3, 5, 7, 81Δ, 10 and 11, The conversion shaft (6) has teeth (7
A first semi-gear (7) in which a) is formed on approximately half of the outer periphery, and a second semi-gear (70) in which tooth portions (70a) are formed on approximately half of the outer periphery are fixed by a key (71). has been done.

The first working culm (2) includes a first rack part (21) that meshes with the southern part (7a) of the first tooth Φ (7), and a first rack part (21) that engages with the first half gear (7) in the normal position. A first j, IJ missing lτB (22) is formed which causes the first half tooth city (7) to rotate idly.

Tift mark 2nd rod (3) is the second half gear (7O)
The second rack part (3
1), engages with the second half gear (7O) in the opposite position, and
A second notch (32) is formed that allows the half tooth Mi (70 teeth) to rotate idly.

Therefore, the tongue rail (
The conversion operations Tl) and (T2) are completed while the conversion shaft (6) rotates approximately 100 degrees.

Furthermore, the first operation stroke (2) and the second operation rod (3) have a first elongated hole (23) and a second elongated hole (33) of the same length.
are formed respectively. The eleventh hole (23) and the second elongated hole (33) are located in the orientation ((A) of FIG. 11).

In (B) of Fig. 11, in the small position 16) and the reverse position,
! The key block (J) is formed at a position shifted by a distance of 11 (z), and the first elongated hole (23) and the second Lv: hole (33) have a gap (Z) between them. 72
) is inserted.

Therefore, the first operating rod (2) and the second operating rod (3)
is prescribed 17! , (z + z) are connected by a key block (72) such that a relative displacement of (z + z) is possible.

As shown in FIGS. 6, 12, and 13, the rotating wheel (83b) of the first stopper (63) is
3c). A first auxiliary lever (68) for moving the first arm (G8a) and the second arm (68b) is fixed to the rotation shaft (63b) by a lever (63d). Therefore, the first auxiliary lever (6
8) is capable of rotating 0f integrally with the first sleeve (63).

The rotation shaft (134b) of the second stopper (64) is supported by a bearing (84c). The rotation axis (84
b) includes the first arm (613a) and the 27th-A (f
19b) and the second auxiliary lever (88) or the key (I
(4d). Therefore, the second auxiliary lever (63) can rotate rJf integrally with the second stopper (θ4).

Between the first auxiliary lever (68) and the second auxiliary lever (69), a part of the lock 11 (83a) and a locking part (64a) are provided.
A compression spring (6b) is interposed to bias the first damper (63) and the fi<2 stopper (64) in the direction in which the first damper (63) and the fi<2 stopper (64) come into contact with the holding disk (62).

Furthermore, as shown in FIGS. 6, 12, and 13, at the end of the transition to orientation, the first stopper (63) is moved to the 11th position; A first interlocking lever (8) that locks the rod (4), and a reversal checking rod (5) that is interlocked with the displacement of the second stomper (64) to the locking position at the end of the conversion to the reversal position. ) to lock the second interlock /<
- (80) are rotatably supported on the conversion shaft (6).

The first interlocking part (8) is a first link 11 that can be engaged with the stereotactic locking notch (4a) provided in the stereotactic checking step (4).
-Claw (8a) (+) and the first assist/<-
(68) is connected to the first arm (38a).

Similarly, the second interlocking lever (80) has a reverse reference distance (5
) has a second locking 11 pawl (80a-) that can be engaged with the reversal locking notch (5a) provided in There is.

As shown in Fig. 3, the backward indexing type point machine (1) is provided with a throne-type positioning circuit controller (9) and a reverse positioning circuit controller (90). ing.

The foot position circuit controller (8) includes the localization circuit quantity i1'
A fork-shaped fork that can be displaced between a constant f) "i (N) that opens the forward rotation motor contact (not shown) of the 1st "Ifl, replacement lever (9a) is installed.

As shown in FIGS. 3, 12 and 13, the first switching lever (8a) is connected to the Ei of the first auxiliary lever (68).
'S2A-1, (68b) 2-formed engagement pin (
88c).

Similarly, the circuit controller (80) for 11i and I reversal includes the following:
Reverse direction (R) to open the reverse motor contact (water supply omitted)
and a mid-change position (C) that closes the reversing motor contact.
:R) and a fork-shaped second switching lever (aOa) which is displaceable.

, the second conversion lever (Ha) is connected to the second auxiliary lever (6
The engagement pin (f19b) formed on the second arm (f19b) of
69c). Therefore, the second conversion lever (Ha) is connected to the second arm (
esb), the reverse position (1?) and the mid-conversion position (C
R).

The action will be explained below.

First, the electric conversion operation will be explained.

In the orientation shown in FIGS. 1, 2, 6, and 10 to 13, the locking portion (8) of the first stopper (63) is
3a) is engaged with the stereotactic notch (82a), the holding disc (62) has a reverse rotation of 11+1J1 on the opposite side -2.
Since the first half gear (7) engages with the first notch (22) of the first operating rod (2) and motion transmission is disabled, the tongue rail (T1) is and the stereotaxic lock notch (4a) in the stereotaxic verification step (4).
1st i! l! The first clutch 1J-claw (8a) of the moving lever (8)
) is also engaged, so that the tongue rail (Tl) is locked in position.

In this orientation, when the switch for the motor (M) is operated, the second conversion lever (90a) is in the mid-conversion position (C:R), so the reverse motor contact is closed, and the motor (M) ) is reversed.

-t- Rotation of the motor (M), bevel pinion (12),
Bevel gear (14a), friction multi-plate clutch (14)
, small gear (1B), gear (17) and pinion (1B)
8) to the annular canine tooth 1li (61), and the annular large gear (61) rotates to the left in FIG. 3 and the tTJS diagram.

The annular large gear (61) idles until the protrusion (81a) of the annular large gear (61) engages with the engaged protrusion (82e) of the holding disk (62). During the idle rotation, the 1117i diagonal R8 (87a) of the second annular corner plate (67) pushes up a part (83a) of the engagement 11 of the first stopper (θ3),
The first stopper (63) is moved from the engagement 11-position to the release position.

By displacement of the first stopper (63) to the release position.

Holding disk (62) by bi 1st I collar (83)
) is released, and the first interlocking lever (8) is rotated clockwise in FIGS. 6 and 13 via the first auxiliary lever (68) to The claw (8a) is removed from the stereotactic locking notch (4a), and the locking of the stereotactic inspection culm (4) by the first interlocking lever (8) is released.

After the idling of the annular large gear (61), the annular large gear (61)
1) causes the retainer 111 disk (62) to rotate counterclockwise in FIGS. 6 and 13.

The rotation of the holding disc (62) is transmitted to the driving disc (6o) via the spring member (65), and is further transmitted to the first drive disc (6o) via the key (6a), the switching shaft (8) and the key (71).゛1' gear (7) and second half tooth Tlj (70)
transmitted to.

That is, the first half gear (7) and the second half gear (70)
rotates in the counterclockwise direction in the state shown in FIG. 2. Displace the culm (3) to the opposite side (right side). In addition, the spring member (65) glue i
Since the repelling force is sufficiently larger (1.5 to 2 times) than the converting force by the motor (M) at its initial point, when the repelling force is converted by the motor (M), the spring parts J, t( 65)
The second movement stage (3) moves to the right (z
+2) When displaced, the first operating stroke (2) is connected to the second operating culm (3) via the key prong (72), and can be displaced in conjunction with the second operating stroke (3). .

By displacing the blade from the position shown in Fig. 11 to the right side during the first movement stroke (2), it meshes with the southern part (7a) of the first half tooth 11f (7) or the first rank part (21). Initially, the first moving 11 culm (2) is also displaced to the opposite side (right side) together with the second moving culm (3).

When the tongue rails (T1) and (T2) are displaced to the position where the tongue rail (T2) comes into close contact with the basic rail (R2), the second half gear gear O) engages with the reversal locking notch (5a). , the second rotary gear (70) idles, and the second operating rod (3)
is stopped (locked).

When the first operating rod (2) is displaced to the right by (z+z) from the stopped position, the engaging portion 11 (64a) of the second stopper (64) engages with the reversal notch (82b). .

By displacing the second striker (64) to the engagement 11-position where the engagement portion (84a) engages with the reversal notch (E12b), the second The converting lever (80a) switches to the reverse position (R), the reversing motor contact opens, the reversing of the motor (M) is stopped, and the first arm (89a) of the second auxiliary lever (68)
), the second interlocking lever (8o) rotates in the clockwise direction in FIG. 13, and the second engaging J1 pawl (80a) engages with the reversal locking notch (5a). In other words, the verification distance for antiposition (
5) By interlocking/<-(SO) and locking, the tongue rail (T2) is also locked in the reverse position via the check rod (5a) to the reverse position 11.

In this way, the conversion operation to the reverse position is completed.

Next, when the switch for the motor (M) is operated in the opposite position, the first conversion lever (8a) is in the mid-conversion position (CN) side in the reverse position, so the stop rotation motor contact is closed, and the motor (M) rotates normally. Thereby, contrary to the above, a conversion operation from anti-position to normal position is performed.

Next, the conversion operation in backward indexing 1111 will be explained.

As shown in Figures 1, 2, 6, and 10 to 13, Ton Clair (TI) and (T2) are facing 111, which is in the normal position as shown in Figures 1, 2, 6, and 13. (in the direction of the arrow in Figure 1)
As the vehicle approaches the base rail (R2), the tongue rail (T2) on the non-contact side is moved by the lateral pressure of the flange of the wheel to the basic rail (R2).
) is pushed before the rich side tongue rail (Tl). In the poem, I. Ngler (T1), the first locking claw (8a) of the first discharge lever (8) is the positional locking notch (4a).
It is locked in position by engaging with.

As the tongue rail (T2) is displaced toward the basic rail (R2), the second operating rod (3) is displaced to the right (opposite side) in FIG. 11, so that the second rack part (31)
The second half gear (7O) rotates in the opposite direction due to the meshing of the second half gear (70a) with the peak part (70a). At that time, gtS1 half teeth (7
) idles in the first νJ notch (22), and the first movement stroke (2
) remains stopped.

The counterclockwise rotation of the second half gear (70) causes the drive disk (6O) to rotate via the key (7) and the switching shaft (6).

At the beginning of rotation of the drive disk (60), the holding disk (62) is engaged by the first swivel (63).
-, the holding disk (62) does not rotate due to the rotation of the drive disk (6o) and the spring member (65
) is compressed.

Then, the first annular cam plate (6B), which rotates together with the drive disk (6o), pushes the inclined part (Sea) of the first stopper (63) (the upper part (B3a)) and presses the first stopper (63). 1
In charge of Sto Soba (83)! Displace it from the F position to the release position.

By displacing the first stopper (63) to the release position, the holding disk (62) is moved by the ff1l stopper (63).
) is released, and the first auxiliary lever (H) (7) is moved via the first arm (88a) to the ft5
ll! 1! The movable lever (8) rotates in one direction in FIGS. 16 and 13. As a result, the locking of the stereotactic inspection rod (4) by the first interlocking lever (8) is released, and the I-ng rail (rl) can be displaced in the opposite direction along with the tongue rail (T2).

When the second movement rod (3) is displaced to the right by (2+2) from the above-mentioned localization, the movement distance (2) of 5>l is determined by the key pro 1.
It can be displaced in conjunction with the second operating rod (3) via the / (72).

The first operation stroke (2) is pressed by the key block (72),
By displacing slightly to the right from the position shown in Figure T11, the tooth portion (7a) of the first half gear (7) begins to mesh with the first arm portion (21), and the first stroke (2) also begins. It is displaced to the opposite side (right side) along with the second movement stroke (3).

When the tongue rails (T1) and (T2) are displaced to the device where the tongue rail (T2) is closely connected to the basic rail (R2), the second half gear (70) engages the reverse locking notch (5).
a) is engaged, fA”r, 2 half-tooth zli: (70) idles, and the second operation stroke (3) or stop 1 (locked)
.

When the first operating culm (2) is further displaced to the right by (z+2) from the above-mentioned upper stop position due to inertia until it is stopped by the key block (72), the locking portion of the second stomp bar (84) (64a) is the reversal notch (E12b)
engage with.

The second stopper (64) moves to the locking position where the locking portion (64a) engages with the reversal notch (e2b), thereby locking the first arm (83a) of the second auxiliary lever (69). In FIG. 13, the second interlocking lever (80) is
6, that is, the 1st reverse locking rod (6), which rotates in one direction, and the 1st pawl (soa') of the second lock engages with the reverse locking notch (5a).
5) is locked by the second interlocking lever (80), the tongue rail (T2) is also locked in the reverse position via the reverse reference rod (5a).

In this way, dorsal indexing from normal position to reverse position is performed.

Next, if a vehicle approaches from the rear direction when the tongue rails (TI) and (T2) are on the opposite side, the tongue rails on the non-electroplated side will be (
T1) is pushed toward the base rail (R1) before the contact side tongue rail (T2), and backward indexing is performed in the opposite direction to the direction indicated by 1=.

Next, a second embodiment of the present invention will be described.

Fig. 14 and Fig. 5 show main parts of a second embodiment of the present invention, and the second embodiment includes a first auxiliary lever (88) and a second auxiliary lever (8!). ])
, the first interlocking lever (8) and the second interlocking lever (8o)
Only this is changed, and the other configurations are the same as those of the first embodiment.

As shown in FIGS. 14 and 15, the rotation shaft (68b
) and (f14b), a first auxiliary lever (100) and a second sleeve auxiliary lever (200) are respectively fixed. Therefore, the first auxiliary lever (100) can rotate integrally with the first stopper 2 (63), and the second auxiliary lever (200) can rotate integrally with the second stopper (64).

The rotation shaft (B3b) has a V-shaped first control lever (300
), a V-shaped second control lever (400) is rotatably supported on the rotation shaft (E14b).

The first control lever (30'0) and the first auxiliary lever (100'
), the first control lever (300) is connected to the second protrusion ('110) of the first auxiliary lever (100).
A spring (130) is interposed to bias the first control lever (300) in the direction of abutting the first control lever (300).

Similarly, between the second control lever (400) and the first protrusion (210) of the fS2 sleeve support lever (200), fJ
The S2 control lever (400) is the second auxiliary lever (200)
A second projection (220) is provided with a second control (230) in the direction of contact with the second protrusion (220).

A 10th lever (510) that engages with the locking notch (4a) is pivotally supported on the i'51 rhythmic lever (500), and the 11th! l! dynamic lever (50
0) is connected to one end of the first system iJl and 8-(300).

Similarly, a 20th lever (610) that engages with the reverse locking notch (5a) is pivotally supported on the 21st river motion lever (SOO), and the second interlocking /\-( eoo) is connected to one end of the second control lever (400).

An engagement pin (31fl) that engages with the first conversion lever (8a) is fixed at one end of the first control lever (300), and a second control lever (31fl) is fixed to one end of the first control lever (300). 400
) is fixedly provided with an engagement pin (410) that engages with the second switching lever (90a).

In the second embodiment, the first stomper (63) is
When rotating counterclockwise from the locking position shown in the figure to the release position, the first control lever is pushed by the second protrusion (120).
- (300) rotates counterclockwise around the rotation axis (E13b), and the first interlocking lever (500) also rotates l.
"I'+l" rotates in the direction of the force. However, in the orientation shown in Fig. 15, if the orientation inspection rod (4) is slightly displaced toward the J direction, the 10th lens (510) will rotate in the orientation direction. By disengaging from the lock!/J missing (4a), the first control lever (300) rotates counterclockwise, and the first conversion lever (9a) switches to the (CN) side. The first stopper (63) remains in the locked position.

Second stopper (64) and second auxiliary lever (2,00)
and the second control/to (400) and the second interlocking/<
The relationship with -(600) is also the same as in '-'.

That is, - according to the second embodiment, the displacement of the tremble can be detected not only at the time of changeover but also at all times.

(Effects of the Invention) According to the backward indexing type point machine according to the present invention, the tongue rail on the side opposite to the base rail is connected to the tongue rail on the side A′ through the inspection rod. At the same time, the operating rod connected to the electroplated side I/Sogel rail is also locked and cannot be displaced, and the non-adhesive side tongue rail is locked by the holding disk and the moving disk. Since it is held with a predetermined force by a spring member between the two, even when used on the main line, safety is ensured against oncoming traffic, and the switching operation when indexing backwards is done easily.

[Brief explanation of drawings]

Figures 1 to 13 show the uninvented first embodiment, Figure 1 is a plan view pointing to installation shapes 11J and 'H, and Figure 2 is a plan view taken along line II-II of Figure WS1. 3 is an enlarged plan view of the switch machine with the holder removed, FIG. 4 is a sectional view taken along line IV-1V in FIG. 3, and FIG. 5 is a cross-sectional view taken along line IV-V in FIG.
6 is a sectional view taken along line vi-Vl in FIG. 3, FIG. 7 is a sectional view of the main part, and FIG. 8 is a perspective view of the main part.
Figures 9(A) to 9(F) are parts diagrams of the main parts, Figure 10 is a plan view of the operating culm, and Figures 11(A) and (B).
) is an explanatory diagram of the operation, Fig. 12 is an enlarged plan view showing a part of the point machine, Fig. 13 is a view from the same direction as Fig. 12, :flJ14
FIG. 15 shows a second embodiment of the present invention,
FIG. 14 is a plan view showing the main parts, and FIG. 15 is a view taken along the store arrow in FIG. 14. (1)... Reverse indexing type point machine (2)... First operating rod (3)... Second operating stroke (4
)...Verification distance for normal position (6)...Verification distance for anti-position (6
)... Conversion shaft (7)... 1st 1'-gear (70
)...Second half gear (8)...First interlocking A-(
80)...Second interlocking lever (21)...First...
Link part (22)...1st! ilJ missing part (31)・
...Second hollow part (32)...Second notch part (60
)... Drive disk (61)... Annular large tooth medium (8
1a)... Protrusion (62)... Holding disk (8
2a)...Notch for stereotaxic position (62b)...Gino cutout for reverse position (62d), (82e)...Engaged protrusion (63
)...First stopper (84)...Second stop horn (65)...Spring member (66)...First annular cam plate (86a)...First tilting part (Hb)...Second inclined portion (67)...Second annular cam plate (8?a)...
...First slope part (67b)...Second slope part (TI), (T2')...Tongue rail (500)
・・First interlocking lever (eoo)・Second interlocking lever/pulling
Figure 10 Figure 13, 14F71

Claims (1)

[Claims] In a backward indexing type switching machine, the first rack portion is 11,
A first operating rod that is linearly reversible between the normal position and the reverse position is connected to one side of the tongue rail, and has a second rack part, and a second operating rod that is linearly reversible between the normal position and the reverse position. is connected to the other side of the tongue rail and engaged with the first rack part ji.
) A first half-gear in which a capable tooth portion is formed on approximately half of the outer circumference, the second rack portion, and [1! A second semi-gear having a matable tooth portion formed on approximately half of its outer periphery is fixed to the conversion shaft of the rotation, and the first semi-gear is engaged with the first semi-gear in the normal position. A first cut-out portion that idles is formed in the first movement stroke, and a second notch that engages in the second half tooth in the opposite position and causes the second half gear to idle is formed in the second movement rod. formed into
In order to enable a predetermined amount of relative displacement between the ttS1 operating rod and the second operating rod, the first and second operating rods are connected by a key block, and a drive disk is fixed to the conversion shaft;
An annular large tooth +lj connected to the drive motor through a loose insertion screw and a protrusion and having a protrusion on its inner circumferential surface is provided rotatably about the conversion shaft, and is arranged at intervals larger than the width of the protrusion. ,
It has a pair of engaged protrusions disposed on both sides of the protrusion and engages with the protrusion so as to be able to transmit motion, and is formed at positions corresponding to the normal position and reverse position, respectively! ,
A holding disk having an IJ notch and a notch for reversal is provided rotatably around the conversion shaft, and the driving disk and holding disk are arranged to hold the non-contacting side rail of the tongue rail with a predetermined force. A spring member is provided that connects the positioning member so as to be able to transmit motion, and the spring member is reversibly displaceable between a release position in which the position is removed from the positioning notch and a locking position in which the positioning position is engaged with the positioning notch at the end of the conversion to the positioning position. Although one stopper is provided,
, a second stop and a collar are provided which are capable of being reversely displaced between a release position where the disc is removed from the reversal notch and a locking position where the reversal notch is engaged upon completion of conversion to the reversal position; a first inclined portion that displaces the first stopper to the release position at an early stage of rotation from the normal position of the drive disk; and a first inclined portion that displaces the second stopper to the release position at the beginning of rotation of the drive disk from the reverse position. Collapse the second inclined part. A first annular cam plate is provided that rotates together with the drive disk, and while the annular large gear rotates from the normal position until the projection engages one of the engaged projections, the first While the first inclined portion for displacing the stopper to the release position and the annular large gear rotate from the reverse position until the protrusion engages with the other engaged protrusion, The second inclined portion displaces the second stopper to the release height i11, and the second annular force 1 rotates integrally with the large annular gear.
, a plate is provided, a stereotaxic inspection rod is provided that can be displaced in conjunction with one of the tongue rails, and a reversal inspection rod that is movable in conjunction with the other side of the tongue rail is provided, and furthermore, the conversion to stereotaxy is provided. Road r II! i is swingably provided with a first interlocking lever that engages with the first stopper +iFj and engages and disengages with the stereotaxic inspection rod in conjunction with its displacement to the locking position, and converts it to the opposite position. At the time of completion, a second interlocking lever is drivably provided which engages the second stopper and engages and disengages from the reversal checking rod in conjunction with the displacement to the locking position, and a throne-type positioning circuit controller that engages with the lever and operates in accordance with the rocking thereof; and a 14-position position circuit controller that engages with the second interlocking lever and operates in accordance with the drive thereof. A backward indexing type point machine.