JPS60124059A - Front loading disk player - Google Patents

Abstract

PURPOSE:To enable to start playing by a user with no direct touch of a finger to the disk recording surface by using a means which guides a jacket storing a disk and inserted through a slot and then carries the disk stored in the jacket to a play position. CONSTITUTION:When a jacket 5 is inserted up to a position shown by a 2-dot chain line, a slide plate 16 is pressed at a store part 10 of the jacket 5 and moved backward. Then a pin 18d projected at the other rocking end part 18c of the 1st lever member 18 slides on a taper surface, and the lever member 18 is turned clockwise. A holding part 8 of the jacket 5 is pushed out by a rocking end part 18a of the member 18, and a disk 6 is carried to a position right above a turntable 30. The part 8 abuts on a sensor switch 45 as soon as the part 8 is pushed out and a mobile plate 37 is driven right. Thus a subchassis 26 set at an upper limit position is oscillated upward, and the disk 6 is detached from the part 8 and at the same time put on the table 30 to be clamped. Then a spindle motor 29 starts revolution with a push of a play start button, and a carriage 32 starts to shift for playing.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a front-loading disc player, and more particularly to a slot-in method in which a disc storage jacket (hereinafter abbreviated as "noyakenote") containing a disc to be played is inserted through a slot provided in a how song. relates to a front loading disc player.

When playing a disc such as a so-called disc record that has sound grooves on its surface, or a digital audio disc that records PCM signals, the user may hold the disc recording surface with their fingers, and fingerprints may be left on the disc recording surface. However, there were disadvantages such as the recording surface being damaged by sharp nails or the like.

The present invention has been made in view of the above-mentioned points, and its purpose is to provide a front-loading disc player that allows the user to play without directly holding the disc with his or her fingers, and which is inexpensive. It is to be.

The front-loading distaff 0 layer according to the present invention is provided with a slot into which a disc storage jacket containing a disc to be played is inserted; The disc storage jacket includes a flat holding part that holds the disc, and a flat holding part that holds the holding part parallel to the main surface. a storage section that can swingably support the holding section and store the holding section together with the disk; a sliding plate slidably supported on either one of a pair of guide rails; and a disk storage jacket that is swingably provided on the sliding plate and has one swinging end inserted into the housing. a first lever member that can come into contact with the holding portion and whose other swinging end can come into contact with a predetermined contact surface fixed to the housing; a second lever member that is movably supported and capable of holding the holding portion together with the first lever member; It is characterized by comprising a biasing means for biasing the first lever member and the second lever member, and a bias scar applying means for imparting a bias scar to the first lever member and the second lever member.

DESCRIPTION OF THE PREFERRED EMBODIMENTS A front loading disc player according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

As shown in FIG. 1, the front panel portion 2 of the housing 1 has a rectangular slot Yl□2 extending in the left and right direction.
(L is provided. However, the left and right direction here refers to the front direction indicated by arrow Y. Therefore, the direction of arrow X in the figure indicates the left side, and the direction of arrow The Z direction is upward.An operation button group 3 for operating the front loading disc player is also arranged in the front p-flank part 2. The slot 2a is for inserting a jacket 6 containing a disc to be played.

As shown in detail in FIG. 5, the jacket 5 includes a flat holding part 8 that holds an information recording disk 6 (hereinafter referred to as a disk), and a holding part 8 that is held in a direction parallel to the main surface via an axis 9. and a storage section 10 which is swingably supported at the disk 6 and can accommodate the holding section 8 together with the disk 6. The holding portion 8 and the storage portion are molded from synthetic resin or the like.

An opening 10a is formed in the side surface of the storage section 10 near the shaft 9. By pushing the holding section 8 through the opening, the holding section 8 stored in the storage section 10 is moved into the storage section. It is designed to protrude to the outside.

A small recess 8cL is provided at the swinging end of the holding part 8, and the holding part 8 can also be pulled out from the storage part 10 by hooking a finger on the recess 8cL. Four substantially semicircular portions 8b are formed on the main surface of the holding portion 8, and the disk 6 is fitted into the recess. The center hole 6a of the disk 6 held by the holding part 8 is formed on the bottom of the recess 8b.
A notch 8C is provided correspondingly. Note that, instead of the notch 8c, for example, a circular opening may be provided.

The story goes back and forth, but as shown in FIGS. 2 and 3, a chassis 12 made of a processed steel plate or the like is fixedly installed inside the housing l. A pair of guide rails 13 and 14 are arranged on both sides of the insertion path of the jacket 5 at the IN of the chassis 12, and are fixed to the chassis 12. As is clear from FIG. 3 and FIG.
Guide grooves 13a and 14α are formed, respectively, to allow the storage portion 10 to be inserted into the housing.

As shown in FIG. 4, a sliding sill 16 is slidably attached to the left side idle rail 13. At the rear end of the sliding bush 16, there is a hanging part 16C extending downward.
L is formed. The hanging part 16a is the guide rail 13
It is slidably engaged with a groove 13b provided in the groove 13b. In addition, the hanging part], 6a is the guide groove through the groove +37+], 3
a and can come into contact with the storage section 10 of the jacket 5.

A support shaft 17 is inserted into the rear end of the sliding grate 16 and extends in the vertical direction.
Removal from the sliding relay 16 is prevented by a. A first joint member 18 is swingably supported by the support shaft 17 . A protrusion 18b is provided at the tip of the swinging end 18α of the first guide member 18. This protrusion 18b is attached to the opening 1 provided in the storage part 10 in the holding part 8 of the jacket 5 inserted into the No.
Contact is possible through 0a. Still, the first rubber member 18
A pin 18d extending downward is fixed to the other swinging end of 8G. On the other hand, a protrusion 1.3C is fixed at a predetermined position on the side of the guide rail 13.
The pin 18d is designed to come into contact with a tapered surface I, 3d, which is a predetermined contact surface formed at the front end of the pin 18d. Note that this coaching surface 13d does not need to be provided on the guide rail 13, but may be provided as long as it is fixedly provided on the chassis 12 and therefore on the unong 1.

A second lever member 20 is disposed above the first lever member 18, and is also swingably supported by the support shaft 17. A pin 2 is provided at the swinging end of the second lever member 20.
0a is provided protrudingly. The lower surface of the second lever member 20 is provided with an engagement protrusion 20b that slidably engages with an opening formed at the other swinging end 18G of the second lever member 18.

A spring member 22 is further fitted onto the support shaft 17.

One end of the spring member 22 is connected to a protrusion 18f formed on the other swinging end 18C of the second lever member 18, and the other end of the spring member 22 is connected to a protrusion 20C formed on the second lever member 20. are engaged with each other. - The gun member 22 is a first lever member,
18 and the swinging end of the second lever member 207 - urge the first and second lever members in a direction in which they approach each other. Therefore, as shown in FIG. 2, the holding part 8 of the jacket 5 is held between the swinging end of the first lever member 18], 8a and the swinging end of the second lever member 20. It has become so.

As shown in FIGS. 2 and 4, a coil spring 23 is connected to the first lever member 18, which imparts a bias tension in the counterclockwise direction in FIG. 2 to the first lever member. There is. Since the engagement protrusion 20b protruding from the swinging end of the second lever member 20 is slidably engaged with the opening 18e of the first lever member 18, the second lever member 20 is easy to maintain. With the mating protrusion 20b in contact with the rear edge of the opening 18e, the coil spring 23 provides a counterclockwise deflection in FIG.

The guide rails 13 and 14 described above and the sliding plate 1
6, a first lever member 18, a second lever member 20,
A guiding and conveying means that guides the jacket 5 inserted from the slot 2α 8- and conveys the disc 6 to the performance position or very close to it, using the spring member 22, the coil spring 23, and small peripheral members related thereto. is configured.

Next, the playing means for playing the disc will be explained.

As shown in FIGS. 2 and 3, a subchassis 26 is arranged below the chassis 12. As shown in FIGS.

The sub-chassis 26 is swingably attached to the lower surface of the chassis 12 via a bearing member 27 and a support shaft 28 at its right end. As is particularly clear in FIG.
A spindle motor 29 is fixedly installed via α, and a turntable 30 is fitted to the output shaft of the spindle motor. On the subchassis 26, there is a pickup means (not shown) for reading information from the disk 6.
A carriage 32 carrying a is provided. However, various types of pickup means can be used depending on the type of disc. The carriage 32 is connected to the subchassis 2
A guide shaft 3 is fixedly installed on the top of the guide shaft 6, extending in the left and right direction.
It is slidably supported by 3. A rack portion 32W extending in the direction of movement of the carriage is still fixed to the right end of the carriage 32. A drive mechanism including a gear 35 that meshes with the rank portion 32a is provided, and the carriage 32 is driven by the drive mechanism.

The sub-chassis 26, the bearing member 27, the support shaft 28, the spindle motor 29, and the turntable 3.
0, the carriage 32, the rank portion 32a, the guide shaft 33, and peripheral small members related thereto constitute a part of a playing means for playing a disc.

A movable grate 37 is provided in front of the subchassis 26 so as to be movable in the left-right direction. Moving plate 3
7 has a protruding pin 37CL that slidably engages with a cam hole (not shown) formed in the sub-chassis 26.
is designed to swing up and down. moving freight rate 3
A rack portion 37b is formed at the front end portion of 7. A drive mechanism including a gear 38 that meshes with the rack portion 376 is provided, and the moving plate 37 and therefore the sub-chassis 2G are driven by the drive mechanism. As shown in FIG. 3, above the turntable 30, a suppressing member 40 that cooperates with the turntable to perform a disk clamping action is rotatably supported by a support mechanism (not shown). .

A lock lever 42 is attached to a shaft 42a at the right end of the chassis 12.
It is rotatably provided via the. This oy lever 42 is for preventing the jacket 5 inserted into the housing 1 from being pulled out during disc play, and has a locking recess formed in the housing section 10 of the jacket 5 at its front end. A locking protrusion 42b that can be engaged with 10b is provided. Also, at the rear end of the lock lever 42, there is a movable grating 37 that moves to the right during disc play.
A prohibition protrusion 42G is formed that comes into contact with the lock lever 42 and prohibits the lock lever 42 from rotating clockwise in FIG.

The lock lever 42 is connected to the second
It is biased counterclockwise in the figure.

As shown in FIG. 2, a detection switch 45 for detecting that the disc 6 is positioned directly above the turntable 30 is disposed on the left side of the rear end of the chassis 26. Although not shown, a detection switch is provided to detect when the carriage 32 has reached its limit of movement.

The detection signals emitted from these detection switches are transmitted to a control section (not shown) provided at a predetermined position within the housing 1.
transmitted to. The drive mechanism and moving plate 3 drive the spindle motor 29 and the caliper 32 in response to operation signals sent from the control unit in response to each of these detection signals.
The drive mechanism that drives 7 operates at a predetermined timing, which will be described later.

Next, the operation of the jacket 5 and the front loading disc player having the above-described configuration will be briefly explained along with the playing procedure with reference to the drawings.

First, the jacket 5 is inserted to the position shown by the two-dot chain line in FIG. Then, the storage section 10 of the jacket 5 is inserted into the hanging section 16a (
(see Figure 4). Therefore, by further inserting the jacket 5, the sliding grate 16 is pushed and begins to move rearward. As the sliding grate 16 moves backward, the pin 1.8d protruding from the other swinging end of the first lever member I8], 8c comes into contact with the connecting surfaces 1, 3d of the protrusion +3C. As the jacket 5 is further pressed, the pin 1
8d slides on the tapered surface 1.3d, and thus the first lever member 18 is swung clockwise in FIG. Therefore, the holding portion 8 of the jacket 5 is pushed out by the swinging end 18α of the first lever member 18, and the disk 6 is conveyed directly above the turntable 30. At this time, the holding part 8 is connected to the swinging end of the first lever member 18 and the second swinging end.
The lever member 20 is held in place by the swinging end portion of the lever member 20.

At the same time as the holding part 8 is pushed out, the holding part contacts the detection switch 45 and operates the detection switch. Then, the moving grate 37 is driven to the right, and the sub-chassis 26, which was at the lower limit position, swings upward. Therefore, the disc 6 is separated from the holding part 8 and the turntable 3
0, and the disk is clamped at the same time.

Next, when the button to start playing is pressed, the spindle motor 29 starts rotating, the carriage 32 starts moving, and the playing starts.

When the performance ends and the buttons for collecting the jacket 5 and the disc are pressed, the carriage 32 and sub-chassis 26 are returned to their pre-performance positions by following the exact opposite process to that described above. Further, the engagement between the inhibiting protrusion 4.20 of the lock lever 42 and the moving plate 37 is released, so that the notebook 5 can be pulled out of the housing. At the same time as the jacket 5 is pulled out, the first lever member 18 and the second lever member 20 are swung counterclockwise in FIG. 2 by the biasing force of the coil spring 23 and return to the position before the jacket was inserted. Therefore, the second lever member 2
0, the holding portion 8 and the disk 6 are stored in the storage portion 10 as the jacket 5 is pulled out.

The jacket 5 and disc 6 are thus recovered.

As described in detail above, in the front loading disc player according to the present invention, the guiding and transporting means guides the disc storage jacket inserted from the slot and transports the disc stored in the jacket to the playing position or very close to the playing position. is provided. Therefore, the user can play without directly grasping the disc recording surface with his or her fingers, which prevents fingerprints from forming on the recording surface and the recording surface from being scratched by fingernails, allowing the user to enjoy a good performance. be.

Further, in the front-loading disc player according to the present invention, the guiding and transporting means does not include a power source such as a motor, and is configured to transport the disc to the playing position using the force of inserting the disc insertion jacket into the slot. There is. Therefore, the cost is low.

[Brief explanation of the drawing]

FIG. 1 is an overall perspective view of a front loading disc player according to the present invention, FIGS. 2 and 3 are a partially sectional plan view and right side view showing the internal structure and jacket of the front loading disc player, and FIGS. FIG. 4 is a perspective view of essential parts of the internal structure, and FIG. 5 is a perspective view of the jacket. Explanation of symbols of main parts■...Housing 2CL...Slot 5...Jacket 6...Disk 6 (L...Center hole 8...
・Holding part 9...Shaft 10...Storing part 12...Chassis 1.3, 1.4...Guide rail 16...Sliding grate 17...Support shaft 18...First lever member 18a - Swinging end 18C...Other swinging end 20...Second lever member 22...Spring member 23.43...Coil spring 26...Sub chassis 29...Sugendol motor 30 ... Turntable 32 ... Carriage 33 ... Guide shaft 3
7...Moving plate 40...Press member 42...Lock lever 45...Detection switch Applicant -Yaionia Co., Ltd. Agent Patent attorney Motohiko Fujimura (1 other person) San J Zukan 74 Zusho 5 Σ

Claims (1)

[Claims] a housing having a slot into which a disc storage jacket containing a disc to be played is inserted; a playing means provided within the how song including a turntable; The disc storage rack includes a flat holding part that holds the disc, and a flat holding part that supports the holding part so as to be swingable parallel to the main surface. and a storage section that can be stored together with the disk, and the guide conveyance means includes a pair of guide rails arranged on both sides of the insertion path of the disk storage slot, and a guide rail that is placed on either side of the pair of guide rails. a freely supported sliding plate, a swinging end of which is swingably provided on the sliding plate and which is capable of abutting against the holding portion of the disc storage jacket inserted into the housing; a first louver member whose other swinging end can come into contact with a predetermined abutment surface fixed to the housing; a first louver member which is supported coaxially with the first louver member and is swingable together with the first louver member; A second lever member capable of holding the holding portion, and the second lever member and the second lever member are attached in a direction in which the swinging end portion and the swinging end portion of the second lever member approach each other. 1. A front loading disc player comprising: a biasing means for biasing the first lever member and a bias scar applying means for applying a bias scar to the first lever member and the second lever member.