CN2063680U - Automatic reversing tape recorder - Google Patents
Automatic reversing tape recorder Download PDFInfo
- Publication number
- CN2063680U CN2063680U CN89219677U CN89219677U CN2063680U CN 2063680 U CN2063680 U CN 2063680U CN 89219677 U CN89219677 U CN 89219677U CN 89219677 U CN89219677 U CN 89219677U CN 2063680 U CN2063680 U CN 2063680U
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- CN
- China
- Prior art keywords
- tape
- pair
- hub
- spool
- motor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
- G11B15/02—Control of operating function, e.g. switching from recording to reproducing
- G11B15/05—Control of operating function, e.g. switching from recording to reproducing by sensing features present on or derived from record carrier or container
- G11B15/093—Control of operating function, e.g. switching from recording to reproducing by sensing features present on or derived from record carrier or container by sensing driving condition of record carrier, e.g. travel, tape tension
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
- G11B15/18—Driving; Starting; Stopping; Arrangements for control or regulation thereof
- G11B15/44—Speed-changing arrangements; Reversing arrangements; Drive transfer means therefor
- G11B15/442—Control thereof
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- Supply And Installment Of Electrical Components (AREA)
- Advancing Webs (AREA)
Abstract
The utility model relates to an automatic reversing tape recorder. The automatic reversing tape recorder first eliminates the relaxation of a tape inside a tape cartridge before playing or recording so as to prevent the tape winding on a pinch roller or a capstan axle to damage the tape or the tape recorder. The tape winding side and the tape feeding side of the automatic reverse mechanism of the automatic reversing tape recorder are both provided with a tape end detection method, but when one of the tape winding side and the tape feeding side is in a detection state, the other is made into a non-detection state by a reverse locking mechanism. In addition, the utility model is also provided with a neutral condition maintaining method which can make a rotary transmission route always kept in a continuous state.
Description
The present invention relates to a kind of automatic reverse formula blattnerphone.Before playback or recording action beginning, at first eliminate the relaxed state of tape in the tape cassete, and then begin action.
In the past, the automatic reverse formula blattnerphone with following mechanism was made known publicly already:
Motor;
Rotating actuator--the rotation of motor is passed in a pair of hub of a spool one selectively;
A pair of tape conveying mechanism (containing capstan and pinch roller)--can select a ground and carry tape;
Tape moves towards throw-over gear (containing the reciprocating action parts that can freely move back and forth)--and can be when rotating actuator turns round, rotation drive path from motor to a pair of hub of a spool is transformed into opposite side from a side, and a pair of tape conveying mechanism is transformed into opposite side from a side;
Automatic reversing mechanism--contain the means that in playback or recording action, detect the magnetic tape terminal, when detecting terminal, can make tape move towards the throw-over gear action, so tape automatic reverse.
So in the past automatic reverse formula blattnerphone is when putting into blattnerphone playback or recording to the tape of tape looseing, and lax tape regular meeting is wrapped on pinch roller or the capstan, causes tape or blattnerphone that the anxiety that sustains damage is arranged.
In view of this, consider before recording or playback action beginning, at first to eliminate tape looseing phenomenon in the tape cassete, and then beginning recording playback action.The purpose of this invention is to provide a kind of like this automatic reverse formula blattnerphone.
In order to achieve the above object, the present invention is except that having following mechanism:
Motor;
Rotating actuator--the rotation of motor is passed in a pair of hub of a spool one selectively;
A pair of tape conveying mechanism (containing capstan and pinch roller)--can select a ground and carry tape;
Tape moves towards throw-over gear (containing the reciprocating action parts that can freely move back and forth)--and can be when rotating actuator turns round, rotation drive path from motor to a pair of hub of a spool is transformed into opposite side from a side, and a pair of tape conveying mechanism is transformed into opposite side from a side;
Automatic reversing mechanism--contain the means that in playback or recording action, detect the magnetic tape terminal, when detecting terminal, can make tape move towards the throw-over gear action, so tape automatic reverse.
On above-mentioned automatic reverse formula blattnerphone, also set up following mechanism with feature:
Neutral condition keeps means--and along with stopping of recording or playback action, the reciprocating action parts that make tape move towards throw-over gear remain on the neutral position, and make the rotation drive path from motor to a pair of hub of a spool keep continuous state.
In addition, in order to reach same purpose, the present invention also can be except that having following mechanism:
Motor;
Rotating actuator--the rotation of motor is passed in a pair of hub of a spool one selectively;
A pair of tape conveying mechanism (containing capstan and pinch roller)--can select a ground and carry tape;
Tape moves towards throw-over gear (containing the reciprocating action parts that can freely move back and forth)--and can be when rotating actuator turns round, rotation drive path from motor to a pair of hub of a spool is transformed into opposite side from a side, and a pair of tape conveying mechanism is transformed into opposite side from a side;
Automatic reversing mechanism--tape side and be respectively equipped with the magnetic tape terminal detection means for the band side can make tape move towards the throw-over gear action when tape is gone to terminal and is detected, so tape automatic reverse.
On above-mentioned automatic reverse formula blattnerphone, also set up following mechanism with feature:
Neutral condition keeps means--and along with stopping of recording or playback action, the reciprocating action parts that make tape move towards throw-over gear remain on the neutral position, and make the rotation drive path from motor to a pair of hub of a spool keep continuous state;
Latch mechanism--when the reciprocating action parts remained on the neutral position, one among the detection means of a pair of magnetic tape terminal maintained the magnetic tape terminal detected state in commutation, and another then maintains the magnetic tape terminal non-detection status by the commutation latch mechanism.
Do not carrying out playback or when action recording when " going out box " (when " stopping " or etc.), the reciprocating action parts remain on the neutral position by neutral condition maintenance means.Carry out playback or when action recording when installing tape, before playback or recording action beginning, the hub of a spool that at first makes both sides is simultaneously to the rotation of winding direction, to eliminate the tape looseing state in the tape cassete.Then, under automatic reversing mechanism action, the reciprocating action parts left or a right direction move, so do not have beginning playback or recording under the relaxed state at tape.
Particularly for a kind of automatic reverse formula blattnerphone in above-mentioned back, after the relaxed state of tape is eliminated, magnetic tape terminal detection means by keeping magnetic tape terminal this side of detected state detect action, just reverse mechanism action, so the hub of a spool of opposite side becomes tape side, beginning playback or recording action.
Use description of drawings one embodiment of the present of invention below.
Fig. 1 is the planimetric map of automatic reverse formula blattnerphone of the present invention.
Fig. 2 is the ground plan of this machine.
Fig. 3 is the amplification ground plan of the automatic reversing mechanism of this machine.
Fig. 4 is the Action Specification figure of this mechanism.
Fig. 5 is the enlarged drawing of Fig. 4 middle gear mate.
(1) is the frame of blattnerphone among Fig. 1 and Fig. 2.Magnetic head installing plate (2) is housed on the close middle part of left and right directions on frame, and it can move back and forth in fore-and-aft direction (A that represents with arrow among the figure, B direction).This magnetic head installing plate (2) utilizes spring (omit among the figure and do not draw) to restoring direction (arrow A direction) tension.On magnetic head installing plate (2) one ends, magnetic head (3) is housed.On blattnerphone frame (1), respectively have a pair of tape conveying mechanism (4a, 4b) and hub of a spool (5a, 5b) be located at respectively magnetic head (3) about.
The tape conveying mechanism (4a, 4b), comprise capstan (6a, 6b) and pinch roller (7a 7b), forms and to select a ground and carry the tape function.Side below blattnerphone frame (1), capstan (6a, lower end 6b) be equipped with respectively flywheel (8a, 8b).This flywheel (8a, 8b) be fixed on the belt pulley (10) on motor (9) axle (9a) and be bearing in the idle pulley (11) that can rotate that blattnerphone frame angle is located with axle, with endless belt around linking up.Drive two capstans (6a, 6b) rotation by motor (9).Motor (9) is installed in the side above the blattnerphone frame (1).(7a, (13a 13b) goes up and can rotate pinch roller, and (13a is 13b) then with spool being bearing in the top of blattnerphone frame (1) and can rotating for support 7b) to be bearing in support respectively.(13a, (7a 7b) leaves capstan (6a, direction 6b) to these supports 13b) to be pushed make to pinch roller by spring (omitting among the figure).So, when magnetic head installing plate (2) moves and when being in the position of playback (or recording) along the arrow B direction, tape (omitting among the figure) in magnetic head (3) and the tape cassete (14) contacts, interlock therewith, (13a 13b) rotates pinch roller (7a to support to a direction, one of 7b) by tape and corresponding capstan (6a, phase crimping one of in 6b).And when magnetic head installing plate (2) when the arrow A direction is restored, magnetic head (3) leaves tape, interlock with it, (13a 13b) rotates to other direction two stands, and (6a, 6b) (7a 7b) also leaves from capstan the pinch roller on to be crimped on capstan.
Hub of a spool (5a, 5b) with tape reel wheel hub (omitting among the figure) interlock mutually of tape cassete (14), (the inside) outstanding axle support (15a that is provided with below the blattnerphone frame, end bearing 15b) metal shaft (16a, 16b), hub of a spool is adorned respectively thereon and can be rotated.At these metal shaft (16a, pass through sleeve (17a on periphery 16b), 17b) (with reference to Fig. 3), with rotation detection part (18a described later, 18b), rotary transmission gear (19a, 19b), (20a 20b) waits and to be placed on orlop with the rotation detection part and to be inlaid in together successively from bottom to top stackedly the tape reel gear.(20a, 20b) (5a, lower end 5b) (base portion) peripheral shape is integral the tape reel gear with hub of a spool.
As shown in Figure 3, capstan (6a, 6b) rotation be by small diameter gear fixed thereon (21a, 21b), with these small diameter gears (21a, the low speed that 21b) is meshed (rotational speed in playback or when recording) rotation transmission gear wheel in large diameter (22a, 22b), with these gear wheel in large diameter (22a, 22b) (23a 23b), passes to rotary transmission gear (19a to the low speed rotation transmission gear of coaxial one rotation, 19b), make hub of a spool (5a) or (5b) low speed rotation.By rotary transmission gear (19a, 19b), small diameter gear (21a, 21b), low speed rotation transmission gear wheel in large diameter (22a, 22b) with low speed rotation transmission small diameter gear (23a, 23b), constitute the rotation make motor (9) pass to selectively a pair of hub of a spool (5a) or (5b) on rotating actuator (40).
And capstan (6a, rotation 6b), by gear wheel in large diameter fixed thereon (24a, 24b), with these gear wheel in large diameter (24a, the high speed that 24b) is meshed (rotational speed when F.F. or rewinding) rotation transmission gear wheel in large diameter (25a, 25b), with these gear wheel in large diameter (25a, 25b) (26a 26b), passes to tape reel gear (20a to the high speed rotating transmission gear of coaxial one rotation, 20b), then can make tape shaft (5a, 5b) high speed rotating.(25a, 25b) (26a, (27a is to be bearing in rotor plate (28a, end 28b) also can rotate 27b) to axle 26b) to high speed rotating transmission gear wheel in large diameter with high speed rotating transmission small diameter gear.(28a, other end 28b) are arranged on blattnerphone frame (1) and go up and can rotate this rotor plate.So, as rotor plate (28a, 28b) when a direction is rotated, (25a is 25b) with capstan (6a, gear wheel in large diameter (24a 6b) for high speed rotating transmission gear wheel in large diameter, 24b) be meshed, (26a, 26b) (20a's high speed rotating transmission small diameter gear 20b) is meshed with the tape reel gear simultaneously.And as rotor plate (28a, 28b) when other direction rotates, high speed rotating transmission gear wheel in large diameter (25a, 25b) with capstan (6a, (24a 24b) leaves gear wheel in large diameter 6b), simultaneously high speed rotating transmission small diameter gear (26a, 26b) (20a 20b) leaves with the tape reel gear.Each rotor plate (28a, 28b) by forming as one with it, the additional force of the outstanding flexure strip (omitting among the figure) that is provided with also makes it that (26a is 26b) from tape reel gear (20a, the direction of 20b) leaving tension to other direction that is high speed rotating transmission small diameter gear.(28a, 28b) (29a, the direction of rotation is changed in operation 29b) to these rotor plates by high speed tape transport bar.High speed tape transport bar (29a 29b) is contained on the frame (1) of blattnerphone, respectively with hub of a spool (5a, 5b) corresponding, and can move back and forth in same direction with magnetic head installing plate (2).(29a, 29b) (30a 30b) keeps respectively to restoring the direction tension high speed tape transport bar by restoring spring.So, when high speed tape transport bar (29a 29b) promotes forward, its front end be pressed in rotor plate (28a, 28b) on, (28a 28b) rotates to a direction, just becomes to walk carrier state at a high speed to make these rotor plates.
As shown in Figure 3, be inlaid in sleeve (27a at central part, plate member (31a 27b), on end 31b), under situation about changing in the attitude of blattnerphone, (18a 18b) still can keep certain attitude to the rotation detection part, is provided with approximate semi-moon shaped counterweight (32a, 32b), simultaneously plate member (31a, other end 31b) be provided with a moon shape part (33a, 33b), at moon shape part (33a, front end 33b) also be provided with cam wipe connect jut (34a, 34b) and the docking section (35a, 35b).Along with tape reel gear (20a, rotation 20b), to rotation detection part (18a, 18b) give revolving force to a direction, this cam is wiped met jut (34a, 34b) (23a, 23b) the ring-type offset cam of following close centre (36a, wipe mutually and connect by cam surface 36b) with being located at low speed rotation transmission small diameter gear.So, when tape is rolled onto terminal, (20a is when 20b) stopping for the tape reel gear, the suffered revolving force of rotation detection part just disappears, then (35a 35b) is in low speed rotation transmission gear wheel in large diameter (22a, the 22b) (37a of pushing portion in its docking section, on swing-around trajectory 37b), (37a, 37b) (35a 35b) connects with the docking section in these pushing portions.Rotation detection part (18a, 18b), cam is wiped and is met jut (34a, 34b), docking section (35a, 35b), offset cam (36a, 36b) and pushing portion (37a, 37b) constitute the magnetic tape terminal detection means (41a, 41b), (41a 41b) is provided on the automatic reversing mechanism (42) these magnetic tape terminal detection meanss.This automatic reversing mechanism (42) can detect the terminal of tape when playback or recording, make tape described later move towards the throw-over gear action.(22a, 22b) (23a, 23b) (38a 38b) supports low speed rotation transmission gear wheel in large diameter by the rotating support plate with low speed rotation transmission small diameter gear.(accomplish can (6a 6b) be that center positive and negative two directions in being decided scope rotate to these rotating support plates with capstan for 38a, the 38b) installation on the frame (1) of blattnerphone.So, (35a is 35b) with pushing portion (37a, 37b) when butt joint when the docking section, because low speed rotation transmission gear wheel in large diameter (22a, revolving force 22b), (38a 38b) rotates to a direction to make the rotating support plate, these low speed rotation transmission small diameter gears (23a, 23b) from rotary transmission gear (19a 19b) go up to throw off, hub of a spool (5a) thereby or rotation drive path (5b) interrupt.(38a, (39a is 39b) with occlusal crib (44a, 44b) the phase interlock of reciprocating action parts (43) for snap protrusions 38b) for the rotating support plate.These reciprocating action parts (43) be arranged on blattnerphone frame (1) front side portion below, can left and right directions decide to slide in the scope.Pinch roller (7a, support 7b) (13a, 13b) snap protrusions on (46a, 46b) with this reciprocating part (43) about interlock hole (45a, 45b) phase interlock.So, when the rotating support plate (38a) of a side (right side among Fig. 3) when clockwise direction is rotated, the low speed rotation transmission small diameter gear (23a) that it supports is from leaving with its corresponding rotary transmission gear (19a), and reciprocating action parts (43) slide left simultaneously; And the rotating support plate (38b) of opposite side (left side among Fig. 3) rotates to clockwise direction, and the low speed rotation transmission small diameter gear (23b) that it supports is meshed with its corresponding rotary transmission gear (19b).In addition, left and right sides pinch roller (7a, (13a is 13b) because also rotation in linkage of the slip of reciprocating action parts (43) for support 7b), when the pinch roller (7a) of a side from capstan (6a) when leaving, the pinch roller of opposite side (7b) then with capstan (6b) crimping mutually.Moreover (38a, rotating force 38b) slides in the way reciprocating action parts (43), is slided by the pulling force of spring (47) thereafter owing to the rotating support plate.This spring (47), an end hang fix on blattnerphone frame (1) above, the other end is then hung and is fixed on blattnerphone frame (1) and go up with axle and support on the rotor (48) that can rotate again.Breach (50) interlock mutually of the snap protrusions (49) of this rotor (48) and reciprocating action parts (43).By rotating support plate (38a, 38b), snap protrusions (39a, 39b), occlusal crib (44a, 44b), interlock hole (45a, 45b), snap protrusions (46a, 46b), spring (47), rotor (48), snap protrusions (49) and breach (50) constitute tape and move towards throw-over gear (51).This tape moves towards throw-over gear, make from motor (9) to a pair of hub of a spool (5a, rotation drive path 5b) is transformed into opposite side from a side, and (4a, tape conveying function 4b) also is transformed into opposite side from a side to a pair of tape conveying mechanism simultaneously.Each rotation detection part (18a, 18b) with sleeve (17a, mating holes (52a 17b), 52b) make slotted hole, simultaneously, torsion coil spring (53a, central annular portion 53b) is entrenched in and is in rotation detection part (18a, 18b) with rotary transmission gear (19a, 19b) sleeve between (17a, 17b) on.(53a, extension 53b) ride over rotation detection part (18a, 18b) Xia Mian the first locator protrusions (54a to torsion coil spring, 54b), the other end then hang ride over the rotation detection part (18a, 18b) Xia Mian second locator protrusions (55a, 55b) on.But the other end of right side torsion coil spring (53a) is a rectilinear form, then slightly is meander-shaped in the other end of left side torsion coil spring (53b).(53a, 53b) front end of other end is arranged on the rotating support plate (38a, 38b) (56a 56b) engages or separates the projection on outstanding respectively these two torsion coil springs.Torsion coil spring (53a, 53b) and projection (56a, 56b) constitute a pair of commutation latch mechanism (57a, 57b).(57a 57b), at corresponding hub of a spool (5a) or when (5b) becoming for the band side, in the magnetic tape terminal of the same side detection means (41a) or (41b) keeps non-detection status with it to these two commutation latch mechanisms.
When recording or playback action stopped, reciprocating action parts (43) kept means (58) to remain on the neutral position by neutral condition.This neutral condition keeps means, when the lid that for example has a tape cassete filling department that does not draw is in the drawings opened, with one one of lid or the forked parts (59) of interlock with it.Two fork end (59 of these forked parts (59)
1, 59
2) be pressed in two ears (48 of rotor (48)
1, 48
2) on, make this rotor (48) press fixed direction rotate fixed angle, reciprocating action parts (43) are remained on the neutral position.When reciprocating action parts (43) when remaining on the neutral position like this, (23a, 23b) (19a 19b) is in than both sides' pitch circle P the low speed rotation small diameter gear of one of both sides with corresponding rotary transmission gear as shown in Figure 5
1, P
2Be meshed on the more shallow position, like this, (5a, rotation drive path 5b) just can keep both sides' continuous state from motor (9) to a pair of hub of a spool.In addition, (60) among Fig. 1 and Fig. 2 are the playback bars, and (61) are locking levers.
The following describes the course of action of the automatic reverse formula blattnerphone that as above constitutes.At first, when not carrying out playback or when action recording when going out box (when stopping or etc.), reciprocating action parts (43) as shown in Figure 4 are by neutral condition means (58) state of remaining neutral, the pinch roller of both sides (7a, 7b) (6a 6b) leaves a little with corresponding capstan, simultaneously, (23a, 23b) (19a's low speed rotation small diameter gear of both sides as shown in Figure 5 19b) is meshed with more shallow state with rotary transmission gear.In addition, the magnetic tape terminal detection means (41a) on Fig. 4 right side is owing to the front end of the other end of torsion coil spring (53a) docks with projection (56a), therefore keep the magnetic tape terminal non-detection status, and therefore the magnetic tape terminal detection means (41b) in left side keeps the magnetic tape terminal detected state because the front end of the other end of torsion coil spring (54) does not dock with projection (56b).Under such state, the tape reel wheel hub interlock of tape cassete is inlaid in hub of a spool (5a, when pushing 5b) and with the record bar of not drawing among playback bar or the figure, if tape has when lax in the tape cassete, before playback or recording action beginning, at first, hub of a spool (5a by both sides, 5b) rotate to the direction of winding simultaneously, be left side among Fig. 1 hub of a spool (5a) in the direction of the clock, the hub of a spool (5b) on right side is by rotation respectively counterclockwise, eliminates the lax of tape in the tape cassete.Eliminate after tape lax, (5a, rotation 5b) promptly stops two hub of a spools.So the magnetic tape terminal detection means (41b) in Fig. 4 left side detects the magnetic tape terminal.Just, dock with pushing portion (37b) its docking section (35b), the counter clockwise direction that makes rotating support plate (38b) press Fig. 4 is rotated, thereby along with tape detects action, automatic reversing mechanism (42) also moves, at this moment reciprocating action parts (43) move right in Fig. 4, the low speed rotation transmission small diameter gear (23a) on right side and rotary transmission gear (19a) engagement among Fig. 3, the low speed rotation transmission small diameter gear (23b) in Fig. 3 left side leaves with rotary transmission gear (19b) simultaneously.Associated therewith, pinch roller on Fig. 3 right side (7a) and capstan (6a) crimping, the pinch roller (7b) in Fig. 3 left side leaves with capstan (6b) simultaneously.Thereby realize the conveying of tape, realize the action of playback or recording from hub of a spool (5a) side in the side direction left side of the hub of a spool (5b) on Fig. 1 right side.
When carrying out playback or recording action, when tape reached terminal, because above-mentioned counteragent, the trend of tape was changed, realize the conveying of tape, realize the action of playback or recording from hub of a spool (5a) side direction right side hub of a spool (5b) side in Fig. 1 left side.
In addition, in the above-described embodiments, the neutral condition that reciprocating action parts (43) are maintained a neutral position keeps means (58) to say being, is pressed in two ears (48 of rotor (48) by the parts (59) with an one of tape cassete filling department lid or tape cassete interlock
1, 48
2) upward constitute.But be not limited in this mode, for example the drawer type blattnerphone for the dress of tape cassete is got, when pulling out drawer in the presence of, makes two ears (48 of rotor (48)
1, 48
2) to dock with fixed part arbitrarily also be feasible.Moreover the forward motion parts that utilize " stopping " operation and " going out box " operation to accompany push two ears (48 of rotor (48)
1, 48
2) be feasible too.
As mentioned above, automatic reversing tape recorder of the present invention is characterised in that, following except having: motor, rotating actuator on a pair of hub of a spool is passed in the rotation of this motor selectively, comprise capstan and pinch roller, can select a ground and carry a pair of tape conveying mechanism of tape, comprise can freely move back and forth the reciprocating action parts, when rotating actuator turns round, the revolution driving path from motor to a pair of hub of a spool is transformed into opposite side from a side, carry function to move towards switching mechanism from the tape that a side is transformed into opposite side the tape of a pair of tape conveying mechanism simultaneously, when playback or recording action, detect the magnetic tape terminal, make beyond the automatic reversing mechanism etc. of tape running mechanism action, also have the reciprocating action parts that make tape move towards switching mechanism when stopping in recording or playback action and remain on the neutral position, the neutral condition that makes rotary drive circuit from motor to a pair of hub of a spool remain on continuous state keeps means.
Thereby, even the tape that tape in the box is in relaxed state is packed in the recorder, owing to eliminated the relaxed state of tape before playback or recording action beginning, thereby lax tape can not twine at pinch roller or capstan, so tape and tape recorder can not sustain damage.
Claims (1)
1, a kind of automatic reverse formula blattnerphone has:
Motor;
Rotating actuator--the rotation of motor is passed in a pair of hub of a spool one selectively;
A pair of tape conveying mechanism (containing capstan and pinch roller)--can select a ground and carry tape;
Tape moves towards throw-over gear (containing the reciprocating action parts that can freely move back and forth)--and can be when rotating actuator turns round, rotation drive path from motor to a pair of hub of a spool is transformed into opposite side from a side, and a pair of tape conveying mechanism is transformed into opposite side from a side;
Automatic reversing mechanism--tape side and be respectively equipped with the magnetic tape terminal detection means for the band side can make tape move towards the throw-over gear action when tape is gone to terminal and is detected, so tape automatic reverse;
It is characterized in that, on above-mentioned automatic reverse formula blattnerphone, also set up following mechanism:
Neutral condition keeps means--and along with stopping of recording or playback action, the reciprocating action parts that make tape move towards throw-over gear remain on the neutral position, and make the rotation drive path from motor to a pair of hub of a spool keep continuous state;
Latch mechanism--when the reciprocating action parts remained on the neutral position, one among the detection means of a pair of magnetic tape terminal maintained the magnetic tape terminal detected state in commutation, and another then maintains the magnetic tape terminal non-detection status by the commutation latch mechanism.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989085364U JPH0810855Y2 (en) | 1989-07-20 | 1989-07-20 | Auto-reverse type tape recorder |
| JP89-85364 | 1989-07-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2063680U true CN2063680U (en) | 1990-10-10 |
Family
ID=13856660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN89219677U Withdrawn CN2063680U (en) | 1989-07-20 | 1989-11-20 | Automatic reversing tape recorder |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPH0810855Y2 (en) |
| CN (1) | CN2063680U (en) |
| GB (1) | GB2235813A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106103233A (en) * | 2013-12-11 | 2016-11-09 | 庞巴迪运输有限公司 | For showing the method running related information to rail vehicle for traffic participant |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1510477A (en) * | 1975-07-22 | 1978-05-10 | Microbial Chem Res Found | Peptides and to amino acid intermediates thereof |
| GB2037473B (en) * | 1978-11-28 | 1983-07-27 | Burroughs Corp | Maintaining tension in recording tape |
| US4522351A (en) * | 1983-09-30 | 1985-06-11 | Lockheed Electronics Company, Inc. | Motor differential drive reel tensioning system |
-
1989
- 1989-07-20 JP JP1989085364U patent/JPH0810855Y2/en not_active Expired - Lifetime
- 1989-11-20 CN CN89219677U patent/CN2063680U/en not_active Withdrawn
-
1990
- 1990-07-19 GB GB9015893A patent/GB2235813A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106103233A (en) * | 2013-12-11 | 2016-11-09 | 庞巴迪运输有限公司 | For showing the method running related information to rail vehicle for traffic participant |
| CN106103233B (en) * | 2013-12-11 | 2018-08-21 | 庞巴迪运输有限公司 | For showing the method for running relevant information with rail vehicle for traffic participant |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0810855Y2 (en) | 1996-03-29 |
| GB9015893D0 (en) | 1990-09-05 |
| GB2235813A (en) | 1991-03-13 |
| JPH0323824U (en) | 1991-03-12 |
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