JPS5826337A - Holding plunger mechanism - Google Patents

Abstract

PURPOSE:To eliminate the need for a releasing switch, by providing a sublock member in addition to a lock member and double-springs for both the members. CONSTITUTION:During playing, an FF lever 5 and a REW lever 6 are placed at the position that a lock pin 46 is in contact with a releasing taper 52 and then a core and a plunger are locked. In depressing the FF lever 5 or the REW lever 6 to the arrow, since the lock pin 46 is guided with a taper 52 and moves right to the arrow against a spring, the lever is further pressed in. When the lever is advanced further, the lever is guided with a locking taper 53 and moved left as shown in the arrow to be locked. Thus, the FF or REW operation can be carried out.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is configured such that when a necessary signal on the tape is detected during fast forwarding or rewinding, the fast forwarding or rewinding operation is automatically canceled and the play operation is resumed. This relates to the holding plunger 1.

When performing fast forward (PF) or rewind (R, EW) during playback operations such as tape playback on a tape player, press the FF lever or 11. Operate the lever for IuW to release the play operation means such as the magnetic head and pinch roller to perform fast winding.7I. During this Ti'' F or n, g w operation, detect a necessary signal in the middle of the tape, such as a signal between songs on a music tape, and when that signal is detected, cancel the F F or n, r > w operation. A tape player with a function 7 that automatically returns to playing operation after
ing.

An example of such a function in the past is 11゛F.
and T1. A core is provided in the locking member for locking the E W lever, and liN F or R, E W
By pressing the work bar, a pre-installed switch is turned on and the holding plunger is operated to attract the core, and a pre-installed pull-in spring is used to bias the core in the suction direction. Pa F or T
A structure is known in which the burn suction is applied to the PW and the lock is moved. When the inter-song signal is detected, the power supply to the holding plunger is stopped, the adsorption of the core is released, and the PF or 1% E W lever is returned to the position that exceeds the force of the pull-in spring. The force is used to return the lever to its original position and automatically return the player to playing action.

By the way, in such a conventional mechanism, by pressing the lever, there is a switch that says to make the plunger move J + ton, and another manual switch that says to release the lock while the plunger is operating. I need a switch for removing 1F+.

For this reason, it was not possible to directly connect the song interval detection circuit to the holding plunger, etc., and the circuit could not be converted to fyII. .

The present invention has been made in response to the above-mentioned problems.
The block member is installed at 11!2 of the lock member to prevent stiffness.
[Double springs in the U-tsuk section and the block section? By providing a holding plunger, a release switch is not necessary.

JJ, T drawing? Please refer to the following example.

1 to 6 are a schematic top view and a schematic side view showing a mechanism according to an embodiment of the present invention, in which reference numeral 5.6 shows levers for 1-F and levers 11.6 provided so as to overlap each other. E W
These levers 5.6 are each urged against the frame 9 by return springs 7.8 so that they are always pulled forward.

1.1.12 are provided on each lever 5.6 and are X
Hook-shaped guide grooves arranged so as to intersect in a letter shape, 13
is a swinging member that swings in the left-right direction using the pin 14 as a fulcrum, and is located below the lever 5.6 and has a guide groove I5 and a swing pin 16. The swing pin 1G is fixed to the tip of the swing member 13 and is connected to the F lever 5 or It.
, When the EWm lever 6 is pressed, it is guided by the intersection of the hook-shaped guide grooves] and 12 which intersect in an X-shape, and swings in the left-right direction using the pin 14 as a fulcrum. Further, the swing pin 16 is biased against the frame 9 by a spring 10.

Reference numeral 18 denotes a second swinging member disposed below the second swinging member 13, and a second swinging member provided at the tip of the pin 192 as a fulcrum.
The swing pin 20 is held for one swing so that it can swing.

The swing pin 16 and the second swing pin 20 are connected by a U-shaped spring (not shown).

That is, lever 5 for F J, m or ]1. EWm
When the lever 6 is pressed, the hook-shaped guide groove 11.12
The movement of the swing pin 16, which swings in the left-right direction while being guided by the intersection of When the pin 20 swings in the left-right direction, the transmission section 22 located at the end of the second swing member 18 is given vertical motion.

This vertical motion is converted into a criss-cross motion in which a rotating member such as an idler is pressed against a drive unit such as a gear bus stan wheel by a link means provided at the bottom of the transmission unit.
Alternatively, R, I(W operations are performed.

39 is a holding plunger, /IO is a solenoid, 41 is a sub-block member, and 42 is a core provided at a position facing the solenoid of the material of the sub-block part. 43 is a locking member, which is attached coaxially with the block portion 4 and the pin, and the end portion 45 has the above-mentioned FP or r
(It has a lock pin /I6 for locking the first collars 5 and 6 for EW. /17 is a retaining spring that holds the gap between the block part material and the lock member 43. The retaining spring 47 is selected to have a strong retaining force capable of holding one of the levers for IjY lit A2 I't E W.

・18 is a drawing well 1 spring provided between the lock member 4;
The force is chosen to be so strong that the lever for fi"Ii" or n, +>\■ cannot be held. 49 is a release arm provided on the lock member 43, 50 is an auto-reverse switching section (O and the lock member 7I is
3 release arm/1 release, binder roller, idler, etc.? Begging for work to switch. This switching member 50 has a tapered portion 5
1? r1, when the tape end is reached, the release arm 49 operates in the direction of the arrow V, thereby releasing the release arm 49 as shown by the arrow. In addition, lever 5 for Ii″F or TL E W
A lock pin 46 is provided on each side of ゜6 as shown in Fig. 6.
It has a tapered part 52 for releasing and a tapered part 5:3 for locking.

In the above configuration, during the play operation, the Ti"Ii" lever 5 and the levers 6 for J: and R, (W) are both
), the lock pin 46 is in a position where it contacts the chip-removing taper part 52, and the core and plunger are in a locked state. In this state, the FL-, R, and EW-
When the lock bin 1G is turned in the direction of the arrow '17, the lock bin 1G moves to the right as shown by the arrow, against the guide spring 17 of the tip part 52, so that the lever is pushed forward. When the lever advances to the further position as shown in FIG. 6(b), it is guided by the locking taper portion 5:3 and moves to the left as shown by the arrow, and is locked.

Ru. By kone, the above-mentioned maunato "Ti" or +? ,E~■The action is performed.

When the inter-song signal is detected as 1+, the protection plunger 31
] is stopped. As a result, the holding plunger; 3C) releases the adsorption of the core/+2 of the sub-block material, and 7. :) so lock pin 46'l;3)
T cock and 1. /10 force is only the force due to the above-mentioned drawing spring 18. However, since the lever is always biased by the spring 7 or 8 as described above, and the retaining force of the drawing spring 18 is smaller as described above, the lever is moved as shown in FIG.
As shown in C), the lock pin 46 moves to the right as shown by the arrow while being guided by the hook part 5; 3 of the lever, and the lock is released by 5 steps and returns to its original position. This will restart the tape play operation for the part after the inter-track signal.

[If you wish to release the lock while the retaining plunger 39 is energized, press the lever opposite to the locked lever to release the lock pin 46 from the release tapered portion 5.
2 and move to the right, and release against the holding spring 47 between the core 42 and the block member 41 held by one lock.

In the auto-reverse system, when the tape end is reached during PI' or YW operation, the release arm 49 of the lock member 43 provided with the lock pier 46 is moved in the direction of the arrow by operating the tapered portion 51 of the switching member 50. Move it to release it and return to play operation. Even in the one-way system, mechanical detection can be performed by providing a tapered portion Z on a member that operates for mechanical detection or the like.

The block member 41 and the lock member 43? By configuring the structure so that the pressure of the retaining spring 47 is applied to the coaxial pin/14 and not to the support frame of the pin 44, the retaining spring 117 is biased when the lock is released.
It is possible to prevent the locking member 43 from rotating in the release direction with the pin 4/1 as a fulcrum due to the pressure caused by the lock member 43.

The holding force of the holding plunger 39 varies greatly depending on the applied force and pressure, but the holding force of the holding plunger 39 varies greatly depending on the applied force and pressure.
Since the lock is held for one pause through the contact, it can be held for one pause at a constant rate, and the mechanical release force can be kept constant, making it easy to release.

As is clear from the above description, according to the present invention, a block member is provided in the pond of the lock portion 4'A, and a double spring 7 is provided between the lock member and the block member, and these double springs Spring holding power? By setting the manual release switch to a different position, the manual release switch can be moved unnecessarily. Therefore, the song interval detection circuit and the holding plunger can be directly connected, so that the circuit can be simplified. Furthermore, even if a switch is provided for muting or the like, it is only necessary to cut off only the audio circuit, and there is no need to have a strict timing relationship with the mechanical operation of the tape player.

In the examples in this text, the plunger core is provided as a separate part in the block member, but if the plunger core is provided in the block member as a separate part, if the plunger core is in close contact with the plunger when energized, ferromagnetic material tI is required. It can also be used to form an integral member rather than a separate part.

[Brief explanation of the drawing]

Figures 1, 3, 5 and 6 (a) to (C)
2 and 4 are schematic top views showing embodiments of the present invention, and FIGS. 2 and 4 are schematic side views showing embodiments of the present invention. 5...Lever for F le 1, 6...Rega lever for REW. 8.10 Spring, 11. ]2. 15.
...Guide groove, ]3゜]8 ... Swinging member, ](i, 2
0... Swinging bottle, ]/I, +9.4/I... Bin, 39... [Holding plunger, /IO... Solenoid, 41... The block member, /I2...・Core, 4
3... Lock member, 46... Lock bin, 47...
- Holding spring, 18... Spring for drawing, 4... Release arm, 50... Switching member, 51, 52.
53... Theba section. Patent applicant Clarion Co., Ltd. Agent Patent attorney Eiji 1) Takeshi 3 parts - once a month

Claims (1)

[Claims] 1. A locking member for locking the fast-forwarding lever and the rewinding lever at predetermined positions, a holding plunger, a block part, and a locking member provided between the locking member and the sub-locking member. a first spring having a holding force capable of holding the lever in place; and a second spring provided on the locking member for drawing in the sub-lock member; When the rewinding lever is pressed and locked and the block member is released from holding the one-stop plunger, the fast forwarding lever or the rewinding lever moves against the holding force of the second spring. A retaining plunger mechanism characterized in that the retaining plunger mechanism is configured such that the plunger returns to its original position. 2. The fast-forwarding lever or the rewinding lever is provided with a locking taper portion for being locked by the locking member and a release taper portion for releasing the locking member.h7. I'? A retaining plunger mechanism according to claim 1, characterized in: 3. Claim 1ffi or claim 2, characterized in that a cassette tape Qibu 1'l placement test 1]4 signal train current is applied to the communication flow of the above-mentioned 1 suspension plunger. Holding plunger mechanism.