JPH0222463B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a front loading disc player, and more particularly to a front loading disc player of the slot-in type in which a disc storage jacket (hereinafter referred to as a jacket) containing a disc to be played is inserted through a slot provided in the housing. Regarding loading disc players.

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,
Users sometimes hold the disk recording surface between their fingers, resulting in inconveniences such as fingerprints on the disk recording surface or damage to the recording surface by fingernails 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.

A front loading disc player according to the present invention includes a housing having a slot into which a disc storage jacket containing a disc to be played is inserted, a playing means provided in the housing including a turntable, and the disc storage jacket. and a guiding conveyance means for guiding the disk and conveying the disk to a performance position or very close to the performance position, and the disk storage jacket includes a flat holding part for holding the disk, and a flat holding part for holding the disk, and a guiding and conveying means for guiding the holding part in parallel with the main surface. a storage section that supports the holding section movably and can accommodate the holding section together with the disk; a sliding plate slidably supported on either side of the guide rail;
The sliding plate is swingably provided so that one swinging end can come into contact with the holding part of the disk storage jacket inserted into the housing, and the other swinging end is in contact with the holding part of the disk storage jacket inserted into the housing. a first lever member that can come into contact with a predetermined fixed contact surface;
a second lever member that is swingably supported coaxially with the first lever member and capable of holding the holding portion together with the first lever member; and swinging of the swinging end portion and the second lever member. a biasing means for biasing the first lever member and the second lever member in a direction in which the end portions approach each other; and a bias force applying means for applying a bias force to the first lever member and the second lever member. It is characterized by

DESCRIPTION OF THE PREFERRED EMBODIMENTS A front loading disk 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 is provided with a rectangular slot 2a extending in the left-right direction. However, the left and right direction referred to here refers to the front direction indicated by arrow Y. Therefore, the arrow X direction in the figure indicates leftward, and the arrow Z direction indicates upward. The front panel section 2 also includes a group of operation buttons 3 for operating the front loading disc player.
is located. A slot 2a formed in the front panel portion 22 is for inserting a jacket 6 containing a disc to be played.

As shown in detail in FIG.
has a flat holding part 8 that holds an information recording disk 6 (hereinafter abbreviated as disk), and a flat holding part 8 that supports the holding part 8 via a shaft 9 so as to be swingable in a direction parallel to the main surface. It is composed of a storage section 10 that can be stored 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 part 10 near the shaft 9, and by pushing the holding part 8 through the opening, the holding part 8 stored in the storage part 10 can be moved to the storage part 10. It is designed to protrude to the outside. Further, a small recess 8a 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 this recess 8a. A substantially semicircular recess 8b is formed on the main surface of the holding portion 8, and the disc 6
is fitted into the recess. The center hole 6a of the disk 6 held by the holding part 8 is provided at the bottom of the recess 8b.
A notch 8c is provided correspondingly. In addition,
For example, a circular opening may be provided instead of the notch 8c.

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 1. A pair of guide rails 13 and 14 are arranged on the upper surface of the chassis 12 on both sides of the insertion path for the jacket 5, and are fixed to the chassis 12. As is clear from FIGS. 3 and 5, guide grooves 13a and 14 into which the housing portion 10 of the jacket 5 can be inserted are formed on the opposing surfaces of both guide rails 13 and 14.
a are formed respectively. As shown in FIG. 4, a sliding plate 16 is slidably attached to the left guide rail 13. At the rear end of the sliding plate 16, there is a hanging portion 16a extending downward.
is formed. The hanging portion 16a is slidably engaged with a groove 13b provided in the guide rail 13. Further, the hanging portion 16a reaches into the guide groove 13a through the groove 13b, so that it can come into contact with the storage portion 10 of the jacket 5.

A support shaft 17 is also fitted into the rear end of the sliding plate 16 and extends in the vertical direction.
The ring 17a prevents it from coming off the sliding plate 16. The support shaft 17
A lever member 18 is slidably supported. A protrusion 18b is provided at the tip of the swinging end 18a of the first lever member 18. This protrusion 18b
The holding part 8 of the jacket 5 inserted into the housing 1 has an opening 10 provided in the storage part 10.
It is possible to make contact through a. Further, a pin 18d extending downward is fixed to the other swinging end 18c of the first lever member 18. On the other hand, guide rail 1
A protrusion 13c is fixed at a predetermined position on the side of the protrusion 13c, and the pin 18d can come into contact with a tapered surface 13d, which is a predetermined contact surface formed at the front end of the protrusion 13c. Note that this tapered surface 1
3d does not need to be provided on the guide rail 13, as long as it is fixedly provided on the chassis 12, and hence the housing 1.

A second lever member 20 is arranged above the first lever member 18, and is also supported by the support shaft 17 so as to be swingable. Second lever member 2
A pin 20a is provided protruding from the swinging end of the 0.
The lower surface of the second lever member 20 has an opening 18 formed at the other swinging end 18c of the first lever member 18.
An engagement protrusion 20b is provided that slidably engages with e.

A spring member 22 is further fitted onto the support shaft 17. One end of the spring member 22 is a protrusion 18f protruding from the other swinging end 18c of the first lever member 18.
Furthermore, the other end portions of the spring members are respectively engaged with protrusions 20c formed on the second lever member 20. The spring member 22 biases the first and second lever members in a direction in which the swinging end portion 18 of the first lever member 18 and the swinging end portion of the second lever member 20 approach each other. Therefore, as shown in FIG. 2, the holding portion 8 of the jacket 5 is held between the swinging end portion 18a of the first lever member 18 and the swinging end portion of the second lever member 20. It's summery.

As shown in FIGS. 2 and 4, a coil spring 23 is connected to the first lever member 18 to apply a bias force to the first lever member in the counterclockwise direction in FIG. Further, the second lever member 20 has an engaging protrusion 20b protruding from the swinging end thereof, which is connected to the opening 18e of the first lever member 18.
Since it is slidably engaged with the engaging protrusion 2
A bias force in the counterclockwise direction in FIG. 2 is applied by the coil spring 23 while the opening 18e is in contact with the rear edge of the opening 18e.

By the above-mentioned guide rails 13 and 14, sliding plate 16, first lever member 18, second lever member 20, spring member 22, coil spring 23, and peripheral small members related to these. , a guiding and conveying means for guiding the jacket 5 inserted from the slot 2a and for conveying the disk 6 to the playing position or very close thereto.

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

As shown in FIGS. 2 and 3, a sub-chassis 26 is arranged below the chassis 12. 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. 3, a spindle motor 29 is fixed to the swinging end of the sub-chassis 26 via a support column 29a, and a turntable 30 is fitted onto the output shaft of the spindle motor. There is. On the sub chassis 26 is a disk 6.
A carriage 32 is provided carrying pick-up means (not shown) for reading information from. However, various types of pickup means may be used depending on the type of disk. The carriage 32 is slidably supported by a guide shaft 33 fixedly installed on the sub-chassis 26 and extending in the left-right direction. Also, the carriage 32
A rack portion 32a extending in the direction of movement of the carriage is fixed to the right end of the carriage. A drive mechanism including a gear 35 meshing with the rack portion 32a is provided, and the carriage 32 is driven by the drive mechanism.

The sub chassis 26 and the bearing member 27
, the support shaft 28, the spindle motor 29, the turntable 30, the carriage 32, the rack part 32a, the guide shaft 33, and the peripheral small members related to these, the playing means performs the disk performance. Some are configured.

A moving plate 37 is located in front of the sub chassis 26.
is provided so as to be movable in the left and right directions.
The movable plate 37 has a protruding pin 37a that slidably engages with a cam hole (not shown) formed in the sub-chassis 26, and as the movable plate moves, the sub-chassis 26 swings up and down. It's starting to move. A rack portion 37b is formed at the front end of the movable plate 37. A drive mechanism including a gear 38 that meshes with the rack portion 37b is provided, and the moving plate 37 and therefore the sub-chassis 26 are driven by the drive mechanism. In addition, as shown in FIG. 3, the turntable 3
A pressing member 40 that cooperates with the turntable to perform a disk clamping action is rotatably supported above the turntable by a support mechanism (not shown).

A lock lever 42 is rotatably provided at the right end of the chassis 12 via a shaft 42a. This lock lever 42 is used to prevent the jacket 5 inserted into the housing 1 from being pulled out during disc play, and has a locking recess 10b formed in the housing section 10 of the jacket 5 at its front end. A locking protrusion 42b that can be engaged with is provided. Further, at the rear end of the lock lever 42, a prohibition protrusion 42c that comes into contact with the moving plate 37 moving to the right during disc play and prohibits the lock lever 42 from rotating clockwise in FIG. 2.
is formed. The lock lever 42 is biased counterclockwise in FIG. 2 by a coil spring 43.

In addition, as shown in FIG. 2, the chassis 26
A detection switch 45 for detecting that the disk 6 is positioned directly above the turntable 30 is arranged on the left side of the rear end. Although not shown, a detection switch is provided to detect when the carriage 32 has reached its travel limit. Detection signals emitted from these detection switches are transmitted to a control section (not shown) provided at a predetermined position within the housing 1. The drive mechanism that drives the spindle motor 29 and the carriage 32 and the drive mechanism that drives the moving plate 37 operate at predetermined timings to be described later based on operation signals sent from the control section in response to each of these detection signals. be.

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

First, insert the jacket 5 to the position shown by the two-dot chain line in FIG. Then, the housing portion 10 of the jacket 5 comes into contact with a hanging portion 16a (see FIG. 4) formed on the sliding plate 16.
Therefore, by further inserting the jacket 5, the sliding plate 16 is pushed and begins to move rearward. As the sliding plate 16 moves backward, the first
A pin 18d protruding from the other swinging end 18c of the lever member 18 comes into contact with the tapered surface 13d of the protrusion 13c. As the jacket 5 is further pushed, the pin 18d slides on the tapered surface 13d, and the first lever member 18 is thus swung clockwise in FIG. Therefore, the holding portion 8 of the jacket 5 is pushed out by the swinging end portion 18a of the first lever member 18, and the disk 6 is conveyed directly above the turntable 30. At this time,
The holding portion 8 is held between one swinging end of the first lever member 18 and the swinging end of the second 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 plate 37 is driven to the right, and the sub chassis 2, which is at the lower limit position, is moved to the right.
6 swings upward. Therefore, the disk 6 is separated from the holding part 8 and placed on the turntable 30, and at the same time the disk is clamped. Next, when the performance start button is pressed, the spindle motor 29 starts rotating, the carriage 32 starts moving, and the performance is performed.

When the performance ends and the button for retrieving the jacket 5 and disk is 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. Also, lock lever 4
Since the engagement between the second inhibiting protrusion 42c and the moving plate 37 is also released, the jacket 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 to return to the position before the jacket was inserted. Therefore, the holding portion 8 and the disk 6 are stored in the storage portion 10 by the second lever member 20 as the jacket 5 is pulled out.

The jacket 5 and disk 6 are thus recovered.

As described above in detail, the front loading disk player according to the present invention includes a guiding conveyor that guides the disk storage jacket inserted from the slot and conveys the disk stored in the jacket to the playing position or very close to the playing position. Means are provided. Therefore, the user can play without directly holding the disc recording surface with his or her fingers, and can enjoy a good performance without getting fingerprints on the recording surface or damaging the recording surface with fingernails. That's why.

Further, in the front loading disk player according to the present invention, the guiding and conveying means does not include a power source such as a motor, and is configured to convey the disk to the playing position by using the force of inserting the disk insertion jacket into the slot. ing. Therefore,
The cost is getting cheaper.

[Brief explanation of drawings]

FIG. 1 is an overall perspective view of a front loading disc player according to the present invention, and 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. , 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, 1...Housing, 2a
...slot, 5...jacket, 6...disk, 6
a... Center hole, 8... Holding part, 9... Shaft, 10... Storage part, 12... Chassis, 13, 14... Guide rail, 16... Sliding plate, 17... Support shaft, 18...
First lever member, 18a... Swinging end portion, 18c...
Swinging other end, 20... second lever member, 22... spring member, 23, 43... coil spring, 26... sub chassis, 29... spindle motor, 30... turntable, 32... carriage, 33... guide shaft, 37... Moving plate, 40...Press member, 42...Lock lever, 45...Detection switch.

Claims (1)

[Claims] 1. A housing provided with a slot into which a disc storage jacket containing a disc to be played is inserted, a playing means provided in the housing including a turntable, and a housing for guiding the disc storage jacket and moving the disc to the playing position or the playing position. The disk storage jacket includes a flat holding part that holds the disk, and a flat holding part that supports the holding part so as to be swingable in parallel with the main surface. a storage section that can be stored together with the disk, and the guide conveyance means is slidable on a pair of guide rails arranged on both sides of the insertion path of the disk storage jacket, and on either one of the pair of guide rails. a sliding plate supported by the sliding plate; and a sliding plate that is swingably provided on the sliding plate so that one swinging end can come into contact with the holding portion of the disk storage jacket inserted into the housing and swing. a first lever member whose other end can come into contact with a predetermined contact surface fixed to the housing; and a first lever member that is supported coaxially with the first lever member so as to be able to swing freely and together with the first lever member. a second lever member capable of holding the holding portion; and a biasing member that urges the first lever member and the second lever member in a direction in which the one swinging end portion and the swinging end portion of the second lever member approach each other. a biasing means, the first lever member and the second lever member;
A front loading disc player comprising a bias force applying means for applying a bias force to a lever member.