JPS59127259A - Ejecting mechanism of tape player - Google Patents

Abstract

PURPOSE:To reduce necessary operating force to an eject lever and to eject a cassette without waiting for the return of lever by providing an operating member which operates associatively with the pressing operation of the eject lever and is released from the association when the inversion of an inverting spring is completed. CONSTITUTION:When the eject lever 23 is pressed in, the operating member 34 associated with it presses a link 5 through an operating rod 9 and the link 5 moves inward while compressing the inverting spring 6. As a guide roller 30 is elevated on a tapered cam 32 according to the pressing operation, a link 29 turns and an engaging pin 39 comes out of the engaging hole of the operating member 34. Then, the operating member 34 is pressed back to the front side by the force of a resetting spring 36, so the link 5 also turns by the operating rod 9 and a pack stopper 4 is pressed back by the repulsive force of the inverting spring 6 at the same time, ejecting the cassette by both the inverting spring 6 and resetting spring 36. Therefore, the force of the spring 36 may be small. Further, the cassette is ejected immediately by the resetting of the operating member after the pressing operation is completed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention 1] The present invention relates to an eject mechanism for ejecting a cassette-type Dave Brake installed at the playback position to the outside.

TECHNICAL BACKGROUND OF THE INVENTION A cassette-type tape player enters the playing state for playback, recording, etc. by inserting the two reel shafts that stand upright on the board into the shaft hole of the tape player. Various types of cassette mounting means are known, depending on the direction in which the cassette is inserted into the tape player.

One method is to insert the cassette horizontally into the pack guide through the insertion opening on the front of the tape player, then lower the entire back guide onto the reel base and insert the reel shaft into the cassette. There is a so-called horizontal loading type.

In this type of tape player, the pack guide cannot be lowered until the cassette is completely inserted into the pack guide. The reason for this is that the reel shaft does not enter into the shaft hole of the cullet 1~ and comes into contact with the lower surface of the cullet, which prevents the cassette and pack guide from descending. However, since the insertion opening formed in the front of the tape play hair 7 is matched to the cross-sectional dimensions of the cassette, it is difficult to insert a finger from there and push the caret 1 into the pack guide. Furthermore, even if a finger is inserted into the pack guide, there is a risk that the finger will be caught when the pack guide with the cassette attached descends.

For this reason, conventional means have been developed in which when the cassette is pushed halfway into the pack guide, the loading/eject mechanism on the tape player A side automatically pulls the cassette into the back of the pack guide. There are some loading mechanisms that use the driving force of a motor, others that use the traction force of a spring, etc., but one of them is a mechanism that uses a single reversing spring to pull in and eject the cullet. be.

As shown in FIG. 1, this reversal spring type loading/eject mechanism is provided with a guide groove 3 extending in the front-rear direction on the top plate of a guide arm 2 that supports a pack guide 1, and a cassette is engaged with the guide groove 3 in the guide groove 3. A matching back stopper 4 is slidably provided (a shaft 4a on this back stopper 4 and the tip of a link 5 provided on the pack guide 1 are connected by a 1-john type reversing spring 6). The tip of the reversing spring 6 is annular so that it can rotate around the shaft 4a, and the base is also rotatably inserted into the hole at the tip of the link 5.The link 5 has a ring shape at its base. An operating rod 9 is attached to the support shaft 7 and is provided between the center of the link 5 and the eject lever 8 to connect them. In between,
A return spring 11 is provided.

This Il! 14N, when the cassette is inserted into the pack guide 1, the pushing force causes the back stopper 4 to
moves to the back side and is suppressed by it, so that the reversing spring 6 tightens so that the distance between both arms narrows. and,
As shown in FIG. 2, when the back stopper 4 passes beyond the position where the ends of both arms of the reversing spring 6 are lined up, that is, when the shaft 4a of the back stopper 4 goes deeper than the end of the link 5, the reversing spring The expanding force of link 6 moves from the stopped end of link 5 to the back of tape player 7,
As a result, the back stopper 4 is pressed to the inner part of the pack guide 1, and the cassette engaged with the back stopper 4 is also automatically drawn into the inner part of the pack guide 1.

On the other hand, during an eject operation, when the eject lever 8 is pushed as shown in FIG. It will be located further back than the axis 4a. As a result, the back stopper 4 moves forward due to the repulsive force of the reversing spring 6 compressed by the eject lever 8, and the carriers 1 to 1 are pressed in front of the pack guide 1. Thereafter, the eject lever 8 moves forward due to the action of the return spring 11, and accordingly, the link 5 and the back stopper 4 connected to the tip of the link 5 via the reversing spring 6 move forward, and the cassette is removed. from inside the pack guide 1.

In this way, in the inversion spring type rope ink ejection mechanism, the horn of the inversion spring 6, which was initially compressed,
By changing the positional relationship between the tip of the link 5 and the axis 4a of the pax 1 and the collar 4, a repulsive force acts in the same direction as the compression direction. ] can be pulled in and the cassette can be pulled out to the middle of the pack guide.

[Problems with the Background Art] By the way, in this type of loading/eject lever mechanism, when the lever 8 is pulled out halfway from the pack guide by the reversing spring 6, the lever 8 is returned to the eject 1. It is pulled out to the front by the independent action of the spring 11. However, when pulling out a cassette, there is sliding resistance between the cassette and the inner surface of the back guide 1, resistance from the dust-proof door cut in the cullet insertion opening of the escutcheon, and resistance at the entrance side of the pack guide. In order to avoid moving the eject lever only by the force of the return spring against these forces,
This had the disadvantage that the force of the spring had to be increased, which increased the operating force during ejection. Moreover, when the eject lever starts to be pushed in, the reversing spring is applied in addition to the return spring, so the operating force is quite large.

In addition, in the conventional mechanism, the eject lever 8 and the pax 1 header 4 are linked, so the eject lever 8
The cullet will not come out from inside the pack guide 1 just by pushing in, but the cullet will be pulled out together with the eject lever 8 only when you release your finger from the eject lever 8 and the return spring 11 acts. There was also a problem in that the curry 1- could not be taken out quickly and the user's operating feeling was poor.

[Object of the Invention] The present invention was proposed in order to solve the problems of the prior art as described above.The purpose of the present invention is to reduce the pushing force of the eject lever, and to enable the eject lever to return after being pushed in. To provide an eject mechanism for a tape player with excellent operability, by which a cassette is ejected from the inside of a pack guide without waiting.

[Summary of the Invention] The eject mechanism of the present invention includes an operating member attached to the eject lever that is interlocked with the eject lever during its pushing operation and that is disengaged when the reversal of the reversing spring is completed, and a link between the operating member and the reversing spring. As soon as the intake lever reaches the back, the operating member is returned to the front, and the tip of the link, which is the fulcrum of the reversal spring, is moved to the front, and the middle of the pack guide is connected to the other curfew. ] is ejected by both the repulsive force of the reversal spring and the return spring of the operating member, thereby reducing the load on the return spring and reducing the pushing force of the eject 1 lever.

Also, the eject mechanism of the present invention is such that the cassette is ejected by an operating member that returns to the front independently of the lever, and the cassette is ejected immediately after the eject lever u1 is pushed in. This is what I did.

Furthermore, the eject mechanism of the present invention has a cam attached to the pack guide, and this cam prevents the separated eject lever from re-engaging with the operating member, and allows the operating member to be completely pulled out to the front. This is what I did.

[Embodiments of the Invention] Hereinafter, an embodiment of the present invention will be specifically described based on the drawings from FIG. 4 onwards.

(1) An eject lever 23 is attached to the frame 20 using a guide bin 21 and a long hole 22 so as to be movable back and forth. This eject lever is biased toward the front side by a return spring 11 provided between the eject lever and the frame.

On the distal end side of the eject lever, an L-shaped link 24 is rotatably provided on the frame by a support shaft 24a.
The tip of the eject lever is engaged with the lower end of this wedge-shaped link. That is, the eject lever 23 is placed before and after the bottle-shaped contact portion 25 provided at the lower end of the L-shaped link 24.
1 = The pressing part 26 and the locking part 27 are positioned so as to be able to engage with each other.

On the other hand, the guide arm 2 that supports the pack guide 1 in a vertically movable manner has a tip that rotates up and down about a support shaft 2a at the rear thereof.
b is connected to the upper end of the single-shaped link 24. Note that a coil spring 24b is stretched between the contact portion 25 of this L-shaped link 24 and the two portions of the frame.

A support shaft 28 is provided approximately in the center of the eject 1 lever 23, and a link 29 extending toward the front side is provided on this support shaft 28.
is rotatably attached, and a small cam lower 30 that projects toward the frame is provided at the tip of this link 29. The frame has a cam hole 31 into which the small cam lower 30 is inserted, and a tapered cam 32 with a raised inner portion is formed in the inner portion of the cam hole 31. The position of this cam hole 31 corresponds to the position of the small cam lower when the eject 1 lever is closest to you, and the position of the tapered cam corresponds to the position of the small cam lower when the eject lever is pushed in. It corresponds to The link 29 is urged downward by the spring 33 so that the cam small lower moves over the lower edge of the cam hole and the top of the cam.

On the other hand, in the central part of the frame, an operating member 34 of a reversing spring is attached via the guide bin 21 and the elongated hole 35 of the operating member so that it can be moved back and forth (= J This operating member 34 is biased toward the front side like the eject lever by a return spring 36 provided between it and the frame.
An operating rod 9 is provided between the upper part of the operating member 34 and the link 5 of the reversing spring to connect the two. This operating member 34 is formed with an engagement hole 38 having a stepped portion 37 at the front end thereof, and the eject lever link 29 is inserted into the engagement hole 38.
An engagement pin 39 provided in the holder is inserted.

For example, the engagement pin 39 protrudes from the opposite side of the link 29 coaxially with the cam small lower, and passes through an arc-shaped insertion hole 40 opened in the eject lever into the engagement hole of the operating member 34. It is inserted in 3B.

As shown in FIG. 7, a re-engagement prevention rim 41 is integrally formed on the side surface of the pack guide 1 in alignment with the cam hole 31 provided in the frame 20.

This cam 41 is formed so that when the pack guide is raised, its rear end is at the same position as the bottom of the cam hole 31, and its front side is at the same position as the top of the -1-bar cam of the cam hole 31. ing.

(2) Effects The various effects of this embodiment are as follows.

■ Carre 1 - installed state...Fig. 4 Pack guide 1
When the eject lever 23 is lowered onto the reel base and is in a play state such as playback or recording, the eject lever 23 is located in front of the 5th point, and the cam holo of the link 29 730 is formed on the frame 20. The engagement pin 39 of the link 29 is located in the step 37 on the front side of the engagement hole 38 formed in the operating member 340. ing.

At this time, the abutting portion 25 of the L-shaped link 24 is pulled by the return spring of the eject lever 24 and is moved 4:1 toward the front side of the support shaft of the L-shaped link 24, so the abutting portion 25 Due to the force of the coil spring 24h disposed between the frame and the L-shaped link 2/I, the L-shaped link 2/I is forced clockwise by f1, and the sword arm 2 and pack guide 1 connected thereto are also pressed downward (). It will be done. Therefore, the re-engagement prevention cam 41 provided on the pack guide 1 is also in the lowered position and does not come into contact with the engagement pin 39 in the stepped portion 37.

■ At the time of eject operation...In the steps 1 to 1 and 26 is L-shaped link 24
The contact portion 25 of the lever is pressed to the inner part, and accordingly, the L-shaped link 24 at the tip of the lever rotates around the support shaft 24a, and the guide arm 2 and pack guide connected to its upper end rotate. 1 is also pulled upwards, and at the same time, the re-engagement prevention of the side portion of the pack guide) 41 is also gradually pulled up.

At this time, the cam wheel 30 attached to the lever 1 to the lever 23 via links moves forward toward the back over the cam hole 31 formed in the frame. At the same time, the engagement pin 39 on the opposite side of the link of the eject lever 23 moves inwards while pressing the operating member 34 through the step 37 of the engagement hole 35 formed in the operating member 34, but the pack kite Since the engagement pin 39 and the re-engagement prevention cam/11 do not come into contact with each other yet, the engagement pin 39 and the stepped portion 37 continue to be engaged.

On the other hand, when the lever 23 is pushed into the lever 1, the operating member 34 that is interlocked with this presses the link 5 via the operating rod 9, and the link 5t rotates to the back while compressing the reversing spring 6. As shown in FIG. 5(B), the tip advances to a position where it is lined up with the axis 4a of the pax 1 to the collar 4.

■ Return of the operating member and ejection 1~Completion...Figure 6 Ejection 1~As the lever is pushed in, the horn troller 30
When the link 29 reaches the cheater comb 32 installed in the room and moves upward, the link 29 rotates upward, and a crotch engagement pin 39 is formed on the operating member 34. It comes off from the stepped portion 37 of the engagement hole. If you change it, until now Ijiek 1
- The operating member 34 that has engaged with the lever is forcefully pushed forward and returned by the force of the return spring 36, so the link 5 is also rotated forward by the operating rod 9 connected to the operating member 34. At the same time, the pack stopper 4 is pushed back forward by the repulsive force of the compressed reverse spooling 6, and the
The parts 1 to 1 are ejected to the front by both the reversing spring 6 and the return spring of the operating member 34.

Even if the operating member returns to the front in this way and the cullet is ejected, the pushing force of the operator is still applied to the eject lever 23, so the eject lever 23 moves as shown in FIG. As shown by the chain line in (B), the tape player is pushed all the way to the back. Pushed by this, the contact portion 25 of the L-shaped link 24 is also located at the innermost end, and here] the spring 2
Since the force 4b acts counterclockwise, the ``shaped link'' and the guide arm 2 and pack guide 1 that interlock with this are also pushed up to the highest position where the cassette can be ejected, and are locked in the raised position by a locking mechanism (not shown). be done.

After that, the pushing force against the eject lever
・When released, the locking portion 27 at the tip of the eject lever 23 hits the abutting portion 25 of the locked L-shaped link due to the force of the return spring 11, as shown by the solid line in FIG. 6(B). It will be pulled out to the front position. This fli? , the re-engagement prevention cam 41G (
Since the upper surface is in the same position as the upper part of the tapered cam 32 on the room 20 side, the engagement pin 39 that returns together with the eject lever moves on this re-engagement prevention cam 41 and is connected to the stepped portion 37 of the operating member. It never goes down to the position where it engages.

[Effect of the Invention 1] As shown in the above embodiments, according to the present invention, the ejection of the cassette from the pack guide is performed by the force of both the reversing spring and the return spring of the operating member. The force required to push the lever is reduced accordingly. In addition, the cassette is ejected immediately after pressing the eject 1 collar, so
A tape player with excellent operability can be provided.

In particular, in the present invention, after the eject lever is pushed in, the re-engagement prevention cam installed in the pack guide prevents the disengaged engagement bin from engaging again with the stepped portion. This has the effect of ensuring that the cassette is ejected from the pack guide.

That is, normally, the operating member would retreat first, so when the engagement pin 39 comes down, the stepped portion 37 will already have moved forward, and the two will not engage again υ.

However, since the operating member pulls Karen 1~ toward you when it returns, the return may be delayed due to sliding resistance between Karen 1~ and the pack kite, and the -/j eject 1 lever is moved by the operator. The hand may suddenly return at ~t71 timing etc. In that case, the lever 1 and the operating member begin to move backward at almost the same time, and the engagement pin 39, which was once raised from the stepped portion 37 by the taper cam 32, falls into the stepped portion 37, and the two are re-engaged. It will match. Then, the operating member is regulated by the raised pack guide and stops at the same position as the eject lever, which has been pulled out halfway, and as shown in Figure 8, it is no longer fully pulled out to the position before starting ejection, and accordingly, the operating member stops. The link of the reversing spring that interlocks with the member will also stop midway.

As a result, the force from inside the pack guide may not be sufficiently discharged to the pusher 1, or when inserting a new cassette, the position where the shaft of the reversing spring on the pack guide side exceeds the tip of the link may become tape play 17. The cassette will be at the back of the cassette, making it impossible to suck in the cassette just by inserting it to the correct position in the insertion slot. However, in the present invention, since the re-engagement state as shown in FIG. 8 is completely prevented, there is an effect that the incomplete ejection of the force lever 1- and the inability to suck it in are eliminated.

Furthermore, in the present invention, the re-engagement prevention cam is provided integrally with the pack guide and does not require a separate member, so it is easy to manufacture, and furthermore, when the pack guide is drying or falling, it is lowered to a position where it does not come into contact with the engagement bottle. Therefore, there is no risk of inadvertently disengaging the eject lever or other operating member during the eject operation.

[Brief explanation of drawings]

Figure 1 is a plan view showing the state of a conventional reversing spring type O-ding mechanism before insertion, and Figure 2 is a plan view showing the state before insertion. 3 is a plan view showing the state during the eject operation, FIG. 4 is a plan view showing the state when the cassette is installed in the ejector I-1 structure of the present invention, and FIG. 5 is a plan view showing the state during the eject operation.
The figures show the state when ejection is completed, and in Figs. 4 to 6, (A> is a side view from the frame side, (B) is a plan view, and Fig. 7 is a re-engagement prevention cam provided on the pack guide. The perspective view and FIG. 8 are plan views showing the drawbacks of the eject mechanism without a re-engagement prevention cam. 1... Pack guide, 2... Guide arm, 3...
・Guide groove, 4... pack stopper, 4a... shaft,
5... Link, 6... Reversing spring, 7... Support shaft, 8... Eject lever, 9... 1 operation, 10... Protrusion, 11... Spring for return, 20
... Frame of tape player, 21 ... Guide bin, 22 ... Long hole, 23 ... Eject lever, 2
4... L-shaped link, 25... Contact portion, 26...
Pressing part, 27... Locking part, 28... Support shaft, 29...
・Link, 30... Force follower, 31... Cam hole,
32...Taper cam, 33...Spring, 34
... Operating member, 35... Long hole, 36... Return spring, 37... Step portion, 38... Engagement hole, 39...
...Engagement bottle, 4.0...Insertion hole, 41...Re-engagement prevention cam. Procedure 711 Dosansho (Spontaneous) To the Commissioner of the Japan Patent Office March 14, 1981 1. Indication of the case 1988 Patent Application No. 000458 2. Name of the invention Tape player eject mechanism 3. Person making the amendment Case and Relationship: Applicant Clarion Co., Ltd. 4, Agent 4045 Hosokawa Building, 1-1-17 Akasaka, Minato-ku, Tokyo, Column 6 of “3. Detailed Description of the Invention” in the specification subject to amendment, Contents of amendment (1) [However,...
...begin, and amend the sentence as follows. However, if the operator's hand was near the entrance of the insertion slot when the cassette was being pushed out, the cassette would be blocked by that hand and stop midway through the cassette. The operating member will also not be able to return to the predetermined position.If the operator releases the eject lever in this state, the eject lever will return before the operating member and the eject lever 1
- It stops at the return position at the time of ejection, which is further back from the tape play 17 than the position at the time of installation. After that, when the hand that was blocking the cassette is removed and the operating member returns to the return position of the eject lever from 1 to 10 o'clock,

Claims (1)

[Scope of Claims] A back stopper is provided on the guide arm that supports the pack guide so that it can be freely lowered in the R direction, and a reversing spring is provided between the pack guide arm and the J link. In a tape player that uses a reversing spring to draw in and eject the tape breaker, a cam hole with a gooper cam is formed in the frame of the tape breaker 7, and an intake lever is disposed on the side of the frame so as to be movable back and forth. A return spring is installed on the eject lever, with the spring facing toward you.
A link is rotatably attached to the lever, and a cam wheel El 7' provided on this link is inserted into the cam hole. An operating member is arranged to be movable back and forth with respect to the frame, a return spring is installed on this operating member to bias it toward the front, and an engagement hole having a stepped portion is formed in this operating member. The engagement pin provided on the link is inserted into this engagement hole, and this operating member is connected to the link of the reversing spring provided on the guide arm. A tape player mechanism characterized in that it is provided with a cam that releases the engagement between the lever and the operating member.