JPS61139963A - Automatic inversion and automatic stop device - Google Patents

Abstract

PURPOSE:To make the constitution of a device small in size and light in weight, and to apply it to a center captain system by providing a forward and backward switching member for switching the first running mode to the second running mode, and a means for holding its switching member or releasing its holding, etc. CONSTITUTION:The first mode is switched to the second mode by a forward and backward switching rod 21 by moving a forward and backward switching button 40 having an energizing means, and a state of the first mode is locked by an automatic inversion lock rod 17 having the first and the second strokes. Also, a terminal of a tape of the first mode is detected by a forward turn use detecting hook 16, and whether the rod 21 is held in its position or not in its terminal is selected by a mode switching lever 22. Also, the lock of a reproducing rod 13 or a sound recording rod 43 is not released by the first stroke of the rod 17 by a lock rod 15 but the lock of the respective locks 13, 43 is released by the second stroke. In this way, the device is made small in size and light in weight, and it is applied to a center captain system.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an automatic reversal/stop device for a recording/reproducing device.

BACKGROUND OF THE INVENTION In recent years, magnetic recording and reproducing devices have become smaller, lighter, and more multifunctional, and in particular, various automatic reversing devices and automatic stopping devices have been developed.

An example of the above-mentioned conventional automatic reversal/automatic stop device will be described below with reference to the drawings.

FIGS. 6 and 7 show the main parts of a conventional automatic reversing and automatic stopping device. In FIG. 6, 101 is a reel stand arm rotatably provided on a reel stand (not shown) via a friction member, and 102 is a detection gear that rotates at a constant speed in a counterclockwise direction.

Reference numeral 103 denotes a detection arm, which is biased by a barb 114 and is rotatably provided on a slidable trigger rod 104 about a shaft 115. Reference numeral 105 denotes a power cam, which is equipped with intermittent gears with missing teeth at two symmetrical positions on the outer circumference, and has an eccentric cam surface j05b and a pin 105C on the back surface. Reference numeral 106 denotes a slidable forward/reverse switching rod, which is driven by the power cam and switches the drive transmission to the pinch roller/roll table mechanism (not shown) for each of the forward and reverse directions.

107 is a slidable pre-loader biased by a spring 116.
At the same time, the lock rod 108 is biased by a spring 117 and locked by a slidable lock rod 108.

A hook 109 is rotatably provided around a shaft 118 implanted on the lock rod. 110 is the axis 119
A shaft 120 embedded in a hook 109 is slidably provided in a guide groove 121 of the selection lever.

111 is a flywheel that rotates at a constant speed, and 113 is a gear that rotates at a constant speed and meshes with a gear on the outer periphery when the power cam 105 rotates several degrees.

The operation of the conventional automatic reversing and automatic stopping device will be explained below.

First, when you press the operation button (not shown), the play rod 107
is locked by the lock rod 108 and the tape enters a constant speed running state. While the tape is running at constant speed, reel stand arm 1
01 is rotated by a reel stand (not shown), and a rotation biasing force is applied via a friction member to rotate the detection arm 103 in the right direction. Then the detection arm 10
The pin 103a implanted in the tape 3 always moves away from the pawl 102a of the detection gear 1o2 which rotates at a constant speed counterclockwise, and the tape continues to run at a constant speed.

Next, when the end of the tape is reached, the reel stand (not shown) stops rotating, the reel stand arm 101 is no longer biased to rotate, and the detection arm 103 also stops rotating.

Then claw 1o2 & is pin 103? L, and the detection arm 103 moves forward in the entry direction together with the trigger rod 104 due to the rotational force of the detection gear 102. When this sharpening power cam 106 is engaged with the claw 104a of the trigger rod, it is rotated counterclockwise by about 100 degrees due to the urging force of the spring 112, and the intermittent gear 1Q6& provided on the outer periphery is a gear that rotates at a constant speed. 113 and rotates approximately 18o0 until it is no longer rotated by the next intermittent portion. Then, the eccentric cam surface 105b provided on the back surface of the power cam 105 causes the pin 1062L implanted in the forward/reverse switching rod 106 to
is guided, and the forward/reverse switching rod 106 slides to the right to switch the rotational drive of the forward/reverse pinch rollers and reel stand (not shown), and shift to the reversal mode. At this time, when the selection lever 110 is moved to the automatic stop side, the hook 109 engages with the pin 105ciC installed on the back side of the power cam 106, and the lock rod 10B moves to the left together with the hook 109, and the engagement with the play rod 107 is stopped. The play rod 107 comes off and returns to the stopped state.

However, if the selection lever 110 is moved to the continuous automatic reversal side, the tape ends and even if the power cam 106 rotates, the hook 1
09 does not engage with pin 1050. Therefore, in this case, only the automatic reversing operation is performed, and the automatic stopping operation is not performed.

Problems to be Solved by the Invention However, with the above configuration, the power cam 105 must continue to rotate counterclockwise during automatic reversal and automatic stop operations. Considering the application to micro cassette tape recorder, it is a constant motor.

It is difficult to reduce the size and weight of the two-capstan system in which the flywheel and other drive systems rotate in the same direction.

Furthermore, with the center capstan system unique to micro cassette tape recorders, it is necessary to reverse the rotating direction of the capstan when switching between forward and reverse directions, and the power cam 106 rotates in the opposite direction during automatic reversal and automatic stop operations. It is difficult to do so.

In view of the above-mentioned problems, the present invention provides an automatic reversing and automatic stopping device that is small, lightweight, inexpensive, and can be applied to center capstan type micro cassette tape recorders, which has been difficult to do in the past. .

Means for Solving the Problems In order to solve the above problems, the automatic reversing and automatic stopping device of the present invention includes a forward/reverse switching member having a biasing means for switching from the first running mode to the second running mode. a first locking member that locks the forward/reverse switching member or its biasing means in a first running mode position and has first and second strokes; tape end detection means that biases the first locking member at the end of the tape and does not bias the first locking member during the second running mode; and the forward/reverse switching member at the end of the tape in the first running mode. and means for selecting whether to hold or not hold the first travel mode position.

A second locking member is provided that does not unlock the operating member during the first stroke of the first locking member and releases the locking of the operating member during the second stroke, and the forward/reverse switching member is arranged at the end of the tape. When the vehicle is held in the first running mode, the first locking member moves to the second stroke, and the second locking member and the operating member are disengaged and automatically stopped.

If the forward/reverse switching member is not held in the first travel mode position, the first stroke of the first locking member unlocks the forward/reverse switching member or the biasing means and shifts to the second travel mode. The structure is such that only automatic switching is performed and automatic stopping is not performed.

Function: The automatic reversal and automatic stop device of the present invention maintains the drive system in the first running mode when the forward/reverse switching member is held at the first running mode position at the end of the tape in the first running mode. The 10th lock member moves to the second stroke while maintaining the position, and the engagement between the second lock member and the operating member is released and is automatically stopped, and the forward/reverse switching member is held at the first travel mode position L"ieK “*1 (D cl y i”“O
@102hO.

- Do not release the lock on the forward/reverse switching member or its biasing means to prevent automatic switching to the second running mode, and at the same time interrupt biasing the first locking member to prevent automatic stop. The tape continues to run in the second running mode, and can be applied to center capstan type micro cassette tape recorders, etc., which have been difficult to do in the past.

Embodiment An automatic reversing/automatic stopping device according to an embodiment of the present invention will be described below with reference to one drawing.

FIG. 1 shows the main parts of an automatic reversing and automatic stopping device according to an embodiment of the present invention, and FIG. 2 shows an overall view thereof. In FIG. 1, 1 is a flywheel, 2 is a flywheel gear integrated with the flywheel 1, 3 is a capstan, 4 is an intermediate gear that meshes with the flywheel gear 2, 5 is a relay gear that meshes with the intermediate gear 4, and 6 is a planetary gear device, and the relay gear 6 and the planetary gear device 6 are connected to a shaft 8. which is mounted on a planetary gear lever 7 which is rotatably provided around the rotation center axis 1o of the intermediate gear 4. It is rotatably provided on the shaft 9. 1
1B: a forward rotation reel gear meshing with the planetary gear device 6; 12;
is a reel hook provided on the normal rotation reel gear 11 via a frix 17 member. Reference numeral 13 denotes a regeneration rod that is biased by a spring 33 and is slidably provided, and has a regeneration button 14 integrated therein. 15 is a lock rod that locks the playback rod 13 and a recording rod 43 which will be described later; and a spring 47
It is biased by and slidably provided.

Reference numeral 16 denotes a normal rotation detection hook, which is biased by a spring 56 and is rotatably provided on the slidable automatic reversing lock rod 1f, and its rotation fulcrum shaft 18 is connected to a groove 19 provided in the board.
guided by. 20 is a lock bin installed in the automatic reversal lock 1 end, and a forward/reverse switching rod 21, which will be described later.
lock.

The forward/reverse switching rod 21 controls the position of the head of the forward/reverse head (not shown) and controls a switch (not shown) for switching the motor current between forward/reverse. Reference numeral 22 designates a mode switching lever which is integrally provided with a lock bin 23 and is rotatably provided around a shaft 48. Reference numeral 24 denotes a forward rotation As lever rotatably provided around a shaft 49. When the automatic reversal lock rod 17 moves forward, the shaft 32 embedded in the forward rotation As lever 24 is biased to the left, and the forward rotation The diversion AS lever 24 is rotated and biased counterclockwise, and the forward rotation S lever 24 biases the lock rod to the left. 25 is a motor that can rotate in both clockwise and counterclockwise directions, and 26 is a belt that is placed between the motor pulley 50 and the flywheel 10.

In FIG. 3, 28, 29, 30, and 31 are a sun wheel and a control wheel, respectively, which constitute the planetary gear system 6.

The sun wheel 28 is a planet wheel and a detection wheel, and is rotatably provided on the aforementioned shaft 9, meshing with the relay gear, and when the planet gear lever 7 rotates counterclockwise, the sun wheel 28 rotates in the forward rotation reel gear 11. When rotated clockwise, it meshes with the reversing reel gear 36. The control wheel 29 is rotatably provided coaxially with the sun wheel 28, and as described above, when the planetary gear lever 7 rotates counterclockwise, it meshes with the gear 46 integrated with the reel hook 12 on the forward rotation side, and rotates clockwise. When it rotates, it meshes with a gear (not shown) that is integrated with the reversing side roll hook 61. The planet wheel 3Q is rotatably provided on a shaft 29L that is integrated with the control wheel 29, and meshes with a small gear 282L that is integrated with the sun wheel 28. The detection wheel 31 is rotatably provided coaxially with the sun wheel 28, and includes an internal gear 31& that meshes with the planet wheel 3o, and has a claw 31b on its outer periphery that engages with the detection hook 16 for forward rotation and the detection hook 37 for reverse rotation. It is set up.

Further, in FIG. 2, reference numeral 37 denotes a reversal detection hook which is provided with a rotation fulcrum shaft 38, and the rotation fulcrum shaft 38 is guided by a groove 62 provided in the substrate. Reference numeral 39 denotes a reversing As lever rotatably provided on the shaft 53, the tip of which is in contact with the rotation fulcrum shaft 38 of the reversing detection hook 37, and the reversing detection hook 37 is inserted into the groove 52 of the board. As it moves forward while being guided, it is rotated clockwise and biased to the left,
The engagement with the playback rod 13 or the recording rod 43 is released. Reference numeral 4o denotes a forward/reverse switching button, which is connected to the normal/reverse switching rod 21 by a spring 42, and is slidably provided on the guide 41. Reference numeral 43 is a recording ring which is integrally provided with a recording button 45, and is biased by a spring 54 and is slidable. Reference numeral 44 denotes a reversal prevention lever, which is rotatably mounted on a shaft 56 embedded in the base plate, and biased clockwise by a spring (not shown).

The operation of the automatic reversal/automatic stop device configured as described above will be explained below with reference to FIGS. 1 to 6.

First of all, FIG. 2 is an overall view showing the stopped state. First, when the regeneration button 14 is pressed, the regeneration rod 13 advances, is locked by the lock rod 16, and a switch (not shown) is turned on, the motor 26 rotates at a constant speed, and the belt A constant speed rotation is transmitted clockwise to the flywheel 1 via 26, and the normal rotation regeneration state is entered as shown in FIG. The constant speed rotation of the flywheel 1 is shown in FIG.
As shown in section A), the flywheel gear 2 integrated with the flywheel 1 passes through the intermediate gear 4, the relay gear 6, and the sun wheel 28 that is part of the planetary gear unit 6 to the reel gear 11.
is transmitted to the reel hook 12 via the 7-reaction member 2, and winds up a tape (not shown).

While the tape is running at a constant speed, the reel hook 12 rotates and winds up the tape, and the reel hook 12 rotates from a gear 46 integrated with the reel hook 12 to a control wheel 2 which is rotatable coaxially with the sun wheel 28.
The planetary wheel 3o, which is rotatably provided on a rotating shaft 29 & provided integrally with the control wheel 29 and meshes with a small gear 28a integrated with the sun wheel 28, itself rotates in rotation about the shaft 9. The detection wheel 31, which revolves clockwise and whose internal gear 31& meshes with the planetary wheel 3o, rotates counterclockwise. Then, as shown in FIG. 4, the forward rotation detection hook 16 swings about the rotation fulcrum 18 so as to escape the claw 31b of the detection wheel 31, and the tape continues to run at a constant speed.

However, at the end of the tape, the reel hook 12 stops, and the control wheel 29 meshed with the reel hook 12 also stops, and the planetary wheel 3o does not revolve but rotates under the rotation of the small gear 282L of the sun wheel 28. The detection wheel 31 meshing with the sun wheel 3o rotates in the opposite direction to the sun wheel 28, that is, clockwise. Then, as shown in FIG. 4, the claw 31b of the detection wheel 31 engages with the forward rotation detection hook 1e, and the forward rotation detection hook 16
Push up in direction B. Then, in FIG. 1, the forward rotation detection notch 16 moves forward along one groove along with the automatic reversal log clot 1, since its rotation fulcrum 18 is guided by the groove 19 of the base plate.

Then, the forward/reverse switching rod 21 is unlocked by the lock pin 20 installed in the automatic reversal lock rod 17 at the first stroke of the automatic reversal lock rod 1 .

However, at this time, the lock pin 23 of the mode switching lever 22
When the forward/reverse switching rod 21 is locked, the forward/reverse switching rod 21 remains in the normal rotation state, the drive system also maintains the normal rotation state, and the automatic reversal lock rod 17 continues to move forward. Then, the automatic reversal lock rod 17 becomes the forward rotation user S.
Push the shaft 32 installed in the lever 24 to the left, rotate the forward rotation As lever 24 counterclockwise, and press the forward rotation As
The lever 24 slides the lock rod 16 to the left.

The lock rod 15 and the regeneration rod 13 are disengaged, and the regeneration rod 13 is exposed again by the biasing force of the spring 33, returning to the stopped state.

However, when the tape reaches the end with the lock bin 23 of the mode switching lever 22 not locking the forward/reverse switching rod 21, the first stroke of the automatic reversing lock rod 1A engages the lock bin 2Q with the forward/reverse switching rod 21. is removed, and the forward/reverse switching rod 21 is moved to the right by the biasing force of the spring 34. At this time, the pin 3 implanted in the forward/reverse switching rod 21
5 rotates the planetary gear lever clockwise about the shaft 1o to rotate the planetary gear device 6 to the reel gear 36 for reversing.
At the same time, the planetary gear device 6 is separated from the forward rotation detection hook 16, and the bias to the forward rotation detection hook 16 and the automatic reversal lock rod 17 is cut off, thereby interrupting the automatic stop operation. At this time, the planetary gear device 6 is moved within the operating range of the reversing detection hook 37, and a leaf switch (not shown) for switching the motor current between the forward and reverse directions is switched to change the polarity of the motor current and rotate the motor in the reverse direction. Retract the forward rotation head (not shown) and reverse rotation head.
Control is performed to advance the 1st drive, and the state shifts to a reverse playback state as shown in FIG.

While the tape is running at a constant speed in the reverse reproduction state, the reversal detection hook 37 continues to swing about the shaft 38, as shown in FIG. When the end of the tape is reached, the detection wheel 3 is activated as described above.
The claw 31b of 1 engages with the reversal detection hook 37, pushes the reversal detection hook 37 forward, and the reversal detection hook 3
The reversing As lever 39 in contact with the shaft 38 of 7 is rotated clockwise, the lock rod 15 is moved to the left, the regeneration rod 13 is unlocked, returned to its original position, and stopped.

Next, when manually switching between the forward and reverse rotations, as shown in FIG. Pushed by the button 4o, the forward/reverse switching rod 21 also moves to the left while resisting the urging force of the spring 34, and the lock bin 20 implanted in the automatic reversing lock rod 17, which is urged by the spring 42, is set to the forward rotation mode. Locked into position.

When switching from forward rotation to reverse rotation, move the forward/reverse switch button 40 to the right, and the forward/reverse switch rod 21 will move to the lock bin 20.
At first, only the forward/reverse switch button 40 moves to the right against the urging force of the spring 42 connecting the forward/reverse switch rod 21 and the forward/reverse switch button 4o. The cam 40& of the reverse switching button 40 pushes the lock bin 20 forward and disengages it from the forward/reverse switching rod 21, and the normal/reverse switching rod 21 slides to the right to the reverse mode position due to the biasing force of the spring 34 and spring 42. It moves and switches to 1 reversal.

In addition, in FIG. 1, when the recording rod 43 has returned to its original state due to the biasing force of the spring 44, the reversal prevention lever 44, which is biased to rotate clockwise by a spring (not shown), is counterclockwise rotated by the arm 43& of the recording rod 43. The lock portion 448L is spaced apart from the forward/reverse switching button 40, and by moving the forward/reverse switching button 4o, it is possible to freely switch between the normal and reverse directions manually.

However, when the recording button 46 is pressed and the recording rod 43 is locked by the lock rod 15 and enters the recording state,
The reversal prevention lever 44 is released from the rotational bias by the arm 432L of the recording rod 43, rotates clockwise due to the biasing force of a spring (not shown), and the forward/reverse switching button 4o is locked by its locking portion 44a. Prevents manual forward/reverse switching operation.

When the end of the tape is reached in the normal rotation recording state, the automatic reversal lock rod 17 is urged by the planetary gear device 6 and slides forward in the same way as described above, and the reversal prevention lever 4 is activated by the protrusion 17&.
4 counterclockwise to separate the lock part 44a from the forward/reverse switching button 40 and release the lock.
The locking of the forward/reverse switching rod 21 by the lock pin 2° is released, and the normal/reverse switching rod 21 slides to the right by the biasing force of the spring 34 as described above, resulting in the reverse recording state.

As described above, according to this embodiment, the forward/reverse switching rod 21 having the spring 34 for applying a biasing force for switching from normal rotation to reverse rotation, and the forward/reverse switching rod 21 are locked in the forward rotation mode position. The automatic reversing lock rod 17 has a second stroke, detects the end of the tape during normal rotation mode, energizes the automatic reversing lock rod 17 at the end of the tape, and applies the automatic reversing lock rod 1 during the reversing mode. a planetary gear system @6 that does not actuate and a forward rotation detection hook 16; a mode switching lever 22 that can select whether or not to hold the forward/reverse switching rod 21 in the forward rotation mode position at the end of the tape in the forward rotation mode; A lock rod 15 is provided, which does not unlock the playback rod 13 or the recording rod 43 during the first stroke of the automatic reversal lock rod 17, but releases the lock of the playback rod 13 or the recording rod 43 during the second stroke. When the forward/reverse switching rod 21 is held in the forward rotation mode, the automatic reversal lock rod 17 moves to the second stroke, and the lock rod 15 and the playback rod 13 or recording rod 43 move to the second stroke.
When the forward/reverse switching rod 21 is not held in the forward rotation mode position, the forward/reverse switching rod 21 is released with the first stroke of the automatic reversal lock rod 17 to automatically stop the rotation mode. It is possible to perform only automatic switching and not to automatically stop.

Effects of the Invention As described above, the present invention provides a forward/reverse switching member having a biasing means for switching from a first running mode to a second running mode;
a first locking member that locks the forward/reverse switching member or its biasing means in a first travel mode position and has first and second strokes;

tape end detection means that detects a tape end during a first running mode, energizes the first locking member when the tape ends, and does not energize the first locking member during a second running mode; means capable of selecting whether or not to hold the forward/reverse switching member in the first running mode position at the end of the tape in the running mode;
In the case where the forward/reverse switching member is held in the first running mode at the end of the tape by providing a second locking member that does not release the lock of the operating member during the stroke but releases the lock of the operating member during the second stroke. , the first locking member moves to a second stroke, disengaging the second locking member from the operating member and automatically stopping the operation member, and holding the forward/reverse switching member in the first travel mode position. If not, the forward/reverse switching member or its biasing means is unlocked by the first stroke of the first locking member, and the second traveling is also performed.
It is possible to perform automatic switching to the mode without automatic stopping.

[Brief explanation of the drawing]

FIG. 1 is a top view of essential parts showing a forward running state in an embodiment of the present invention, FIG. 2 is a top view showing a stopped state, and FIG. 3 is a cross-sectional view of the drive system shown in FIG. Fig. 4 is a top view of the main parts showing the tape end detection mechanism, Fig. 5 is a top view of the main parts showing the reversing running state, Fig. 6 is a top view showing the conventional automatic reversing and automatic stop device, and Fig. 7 is FIG. 3 is a top view of main parts. 1...Flywheel, 2...Flywheel gear, 4...Intermediate gear, 5...Relay gear, 6...Planetary gear device, 7 ... Planetary gear lever, 11 ... Forward rotation reel gear, 12 ...
... Reel hook, 13 ... Reproduction rod, 1
5...Lock rod, 16...Forward rotation detection hook, 17...Automatic reversal lock rod, 2
1...Forward/reverse switching rod, 22...Mode switching lever, 24...A/S lever for normal ffi, 25...Motor, 26...・Belt, 2
8...Sun wheel, 29...Control car, 3o...
... Planetary car, 31 ... Detection car, 37...
...Detection hook for reversal, 39...A for reversal
S lever, 4Q...Forward/reverse switching button, 43...
... Recording rod, 44 ... Reversal prevention lever,
101... Reel stand arm, 102...
・Detection gear, 103...Detection arm, 104・
...Trigger rod% 106...Power cam, 1o6...Forward/reverse switching rod, 1o7.
...Fray rod, 108...Rock rod. 109...Hook, 110...Selection lever, 111...Flywheel. Name of agent: Patent attorney Toshio Nakao and 1 other person!・
・・Fly foil /2. ,, reel 71,
72/l-... The car stopped and the noise, ← A 24... Positive j
'As Lever' for Female - I5...℃・ν2℃2℃ Rad...47J center D Tsudo 24・-Forward rotation shoulder Asrenogu-! ,, Fry, foil? , Fly wide angle 1゛A 4...Medium m gear 5...Medium, @Gear 7 ・De Mu 11 self gear J-// ・Correct, ``Saw 11 rod'' for opening? 12...1 reel fuzu 2 27...7172 Tao 4 batting material 3θ,, Yukisaku No. 1, Fig.
! 6... Seiken 2 use A-kai and 2, V-ri 3f... Sand car 3... Gearf na 9-n 39... and Ekimi A8 Shide-4,... Intermediate key A 5th Figure 5・-'+Rinbiki°aβ...J! +, 7 Rainbow Mouth/Do゛15...Lotsflo 7 Do. 16...Positive #, row ■, output 1.7721...right pinch ℃tudo fol...reel stand arm lθ2-@output gear'a 103...extraction arm/ρ4...- trt3-vtsudo lθ5... to 〇 work cam Fig. 6 tol,... fair cut - Tsudo lθ7... Ascend lθθ...υtsuk0 sodo. /// ,・, Flywheel fol lσ5... Howe-cam/θ8...p・790tsuρ /θ? ...7...12 710,... TX lever'- Figure 7

Claims (1)

[Claims] a forward/reverse switching member having a biasing means for switching from a first running mode to a second running mode;
and a first locking member having a second stroke; detecting the end of the tape during the first running mode, energizing the first locking member at the end of the tape, and energizing the first locking member during the second running mode. tape end detection means that does not energize the locking member; means that can select whether or not to hold the forward/reverse switching member at the first running mode position at the end of the tape in the first running mode; A second locking member is provided that does not unlock the operating member during the first stroke of the locking member and releases the locking of the operating member during the second stroke of the locking member, and at the end of the tape, the forward/reverse switching member is moved during the first travel. When the mode is maintained, the first locking member moves to the second stroke, releases the engagement between the second locking member and the operating member, and automatically stops, and switches the forward/reverse switching member to the first traveling mode. If it is not held in this position, the forward/reverse switching member or its biasing means is unlocked by the first stroke of the first locking member to automatically switch to the second running mode without automatically stopping. An automatic reversing and automatic stopping device featuring: