JPS63268156A - Loading mechanism for disk player - Google Patents

Abstract

PURPOSE:To contrive the miniaturization and lighter weight of a device with simple constitution by driving a back and forth moving mechanism and a mounting elevator mechanism for a carry with a single drive source via a prescribed changeover member. CONSTITUTION:When the carry 4 of a disk type recording carrier is to be moved toward a projection part, the drive force of the drive source for the back and forth moving mechanism is given to a load pinion gear 9 to drive a rack part 4a of the carry 4 meshed with the gear 9 so as to discharge the carry 4 in the direction of the projection. Then a disk is carried by this carry to be moved in the housing direction. Subsequently, the carry 4 is descended to a prescribed position by driving an elevator rack gear for an operation base material 13 of the mounting elevator mechanism by a drive force for the moving mechanism via a prescribed change gear. For this, the back and forth moving mechanism and the mounting elevator mechanism are driven by a single motor, so that the miniaturization and lighter weight of a device with simple constitution can thus be contrived.

Description

Detailed Description of the Invention [Technical Field] The present invention relates to a disc player, in particular, a carrier that holds and transports a disc-shaped record carrier, which is automatically stored in a recording or playback position, and which can be used to take out a disc-shaped record carrier. The present invention relates to a conveying means that protrudes into position, that is, a front loading mechanism.

"Prior Art" An audio disc type record carrier having sound grooves on the surface or a digital audio disc type record carrier on which PCM signals are recorded is held in a carrier that is provided in a way that projects from the player housing so that it can be freely stored, and is stored inside the player housing. The space on the top of the disc player can be used effectively for things such as placing items.

Front loading disc players are known.

The basic structure of the front-loading disc player includes a player housing, a turntable disposed within the housing and supporting a disc-shaped record carrier, starting the disc-shaped record carrier on the turntable;
A playing means consisting of an automatic mechanism for driving or stopping, a converter for recording and reproducing information on a disc-shaped record carrier, a carrier for holding and guiding the disc-shaped record carrier to be played, and a carrier for holding and guiding the disc-shaped record carrier to be played; , and a conveying means that moves to protrude to a position for taking out the disk-type record carrier outside the player housing and to store it in a recording or reproducing position within the housing.

The conventional known conveying means in the front-loading disc player is of a type in which the carry protrudes outside the housing only to a certain extent. Therefore, in order to place or take out a disk-type record carrier, the operator manually pulls out the carrier to the required position, and after placing or inserting the disk-type record carrier, the It was necessary to perform an auxiliary push operation to the position where storage and movement would start automatically. It was a semi-automatic loading mechanism in that it required auxiliary action from the operator.

For example, a conventional device of this type is shown in FIG. 9. In the figure, A is a chassis, and B is a carry, which is a member on which a disk is placed and transported. C and C' are left and right roller plates that lock the carry so that it can slide freely in the horizontal direction, D and D' are rack carriers provided on the roller plate C9C', and E in the figure is the rack gear D. , D' is a synchronized gear assay for sliding synchronously. In addition, F is a clamper holder that rotatably supports a disc clamper for holding a disc between it and the turntable, G is a motor holder that supports a gear train for driving a rack gear, and H is a housing. The reinforcement bridge is a reinforcing member that prevents pressure from being applied to the mechanism from the upper part of the body and maintains a constant distance between the left and right walls of the chassis.

Next, the operation of the prior art will be explained. Two L-shaped holes J and J are formed in each of the left and right walls of the chassis A. Pin members Ia and Ib are attached to the roller plates c and c'.
2 are not arranged, and the distance between the two wooden pin members Ia and Ib is the distance between the two holes Ja formed in both walls of the chassis A,
The distance is almost the same as Jb. The roller plates C, C'
The two wooden pin members Ia and Ib arranged in the chassis A
The roller plates c, c are inserted into the L-shaped holes Ja, Jb formed in the chassis A, and are engaged so as to protrude to the outside of the chassis A.
' is arranged on the inside with respect to the wall of chassis A), and two wooden pin members Ia arranged on the roller plates c and c'.
, Ib are engaged with inclined holes Ka and Kb drilled in rack gears 〇 and D', and rack gears D and D'' are slidably engaged with chassis A from the outside of chassis A. When the carry B protrudes from the main body, the bottle members Ia and Ib of the roller plates C and C' are 8 L of the chassis.
It engages with the horizontal portions of the shaped holes Ja and Jb. At this time, when the rack gears D and D' move in the opposite direction of the arrow Y by starting the motor, the roller plates C and C' move horizontally along the horizontal portions of the L-shaped holes Ja and Jb. When the rack carriers D and D' move to the rear end, the horizontal movement of the roller plates C and C' is controlled by the protruding pin members 1a and Ib of the roller plates c and c' formed on the chassis A. L-shaped hole J
It is regulated to come into contact with the vertical wall of a and Jb. The subsequent movement of the rack allows the roller plates c, c' to perform vertical movement, with the pin members Ia, Ib being forced to move along the inclined holes Ka, Kb of the rack gear. Carry B is engaged with roller plates c and c', so carry B
moves horizontally and then moves vertically, and the disc placed on carry B is placed on the turntable in the vertical midway of said carry.

Clamper holder F is Clamper holder Fiil
ii The horizontal elongated holes M and M' formed on the side surfaces engage with the pin members Ia of the roller plates C and C', and the pin members Ia
It can swing freely using the fulcrum. Further, the vertical long holes N and N' formed on the side surface of the clamper holder F are in contact with the pin members 1b and Ib' of the roller plates c and c'. The center approximately coincides with the center of the pin members rb and rb' serving as the fulcrums.

Further, the clamper holder F is biased downward by shown springs o and o' (springs with sufficient force to clamp the disc between the turntable and the disc clamper). Then, after the disc is placed on the turntable by the vertical movement of the roller plate C9C', the disc clamper comes into contact with the disc, and the roller plates c, c'
When the pin members Ib and Ib' of the roller plates c and c' are moved vertically, the pin members Ib and Ib' of the roller plates c and c' are separated from the terminal ends of the longitudinally elongated holes N and N'', and the disk is moved by the spring 0.0゜. It is held in place by the biasing force.

As mentioned above, the distance that the carry B can horizontally move by driving the motor is determined by the depth dimension of the casing. If the rack gears D and D', which are mechanical members, protrude from the housing during the sliding movement of the carry, it not only spoils the aesthetic appearance of the product, but also negatively affects the image of the Ffli product. In any case, it is appropriate to house the device inside the housing.

The depth dimension of currently commercialized video disc players, VTRs, etc. is 40cm5, and the horizontal projection distance of the L-shaped holes Ja and Jb is usually 2.
~3cm is required, so the horizontal movement distance with the above mechanism is 18
It is around cm.

Therefore, the amount of protrusion of the carry becomes smaller, but as a result,
The operability when placing the disc on the carry is poor. To compensate for this, the user pulls out the carry 4 as an auxiliary operation after the carry has finished protruding by motor drive and places the disc. At present, a sufficient amount of protrusion has been obtained.

"Background Art" There is a need for a carrier that moves automatically and completely to protrude and retract, and to eliminate as much effort as possible in loading and injecting the disk-type record carrier. The applicant is also researching and developing such a completely automatic loading mechanism.

If the design conditions are such that it is okay to use a large number of drive devices and control switches, the player housing can be deep enough and large, or it can be an expensive product, then it can be done relatively easily. It is believed that it is possible to design a variety of fully automatic loading mechanisms. However, it is important to minimize the size of the player housing as much as possible, such as by using a single drive source (one motor) to save labor, and by minimizing the depth of the player housing. Designing a fully automatic loading mechanism under the condition that it is not used becomes a difficult technical challenge. Under these difficult design conditions, the applicant has conducted research and development into new loading mechanisms, and several have been completed.

This new loading mechanism is mounted on the upright part of the chassis (hereinafter referred to as the sub-chassis) and is configured so that it can be moved within the range of the rearward direction and does not protrude from the depth dimension of the player housing even when it is moved to the maximum extent. There is an operation control means, and by moving the operation control means within a limited range in the front and back direction, the carry is amplified and moved to the take-out position, stored in the housing, and lowered in correspondence with the playing means. A series of operations such as operation, placing the disk-shaped record carrier at the recording or playback position on the turntable, and clamping are all performed under control, and the drive source, the motor, is not directly controlled. The basic concept is to apply a driving force to move the actuation control means in the front and back direction.

In other words, at the center of operation, the movement of the actuation control means is converted into a force that moves the drive force applied to the actuation control means in the longitudinal direction relative to the chassis, and this movement is used as a secondary drive source to first drive the carry. protrudes to the ejection position,
Conversely, the carrier is stored in the housing and moved at double speed in the front and rear direction.Firstly, the carry is lowered in correspondence with the playing means, and the position of the moving carry is controlled.Finally, the disc type record carrier is recorded or reproduced. The structure is designed to perform many tasks, such as placing it on the turntable where it is placed and clamping it.Moreover, each structure and mechanism has a driving force that is controlled so that it operates smoothly and in a timely manner. It is characterized by its distribution.

This method is extremely effective in reducing the size and weight of the operating mechanism, reducing the number of parts, and reducing costs.

However, the loading mechanism of the developed method indirectly applies the driving force applied to the operation control means through a number of members to perform various operations, so it is inevitable that the play between each member will be reduced. As the number increases, their play tends to overlap, resulting in a decrease in operating accuracy and a delay in movement (backlash). In particular, when the movement is amplified by the speed-doubling means, there is a drawback that play and backlash are amplified and the accuracy of operation is significantly reduced. This phenomenon is good for operations that do not require precision, but in order to accurately clamp the disk-shaped record carrier at the correct position for recording or playback, it is necessary to pinpoint the position of the carry with high precision and place and lower it. If it is necessary, it becomes a big problem. If there is a delay or play in the movement of the carry when moving in the direction of loading or storing,
This is because the lowering position of the carry becomes misaligned, which disturbs the conversion position of the disk-type record carrier, causing a failure in which conversion is not possible.

The present applicant first absorbs the play and backlash during the movement of the carry as described above, specifies the position of the carry, and
We have developed a device that lowers together with the support member to ensure that the disk-shaped record carrier is always transferred to the correct conversion position, and is a fully automatic front loading system that always operates smoothly and conveys the carry with high precision. It embodies the mechanism.

"Problems to be Solved by the Present Invention" The present invention was researched and developed based on the idea that a fully automatic loading mechanism that meets the same requirements as the above-mentioned prior invention could be realized by a different means with a simpler structure. It is.

The loading mechanism of the above-mentioned prior invention has a structure in which the chassis is standing;
An operation control means is provided in the E-shaped part (hereinafter referred to as the sub-chassis), and this is moved back and forth and up and down in a small amount within an allowable range, and based on this movement, the carry is controlled and amplified. , the carry moves at double speed, makes the carry appear and disappear from the housing, and moves up and down in response to the performance means. The basic concept is simply to apply a driving force to move the actuation control means in the front and back direction. This is due to the fact that it is technically difficult to control when amplifying the movement of the actuation control means as a reference, and the mechanism that converts the simple forward and backward movement of the actuation control means into two different directions while controlling it. However, it is unsatisfactory in that it becomes complicated, requires advanced processing technology and assembly technology, and tends to be expensive.

The invention of the present application basically separates the movement of the carry into and out of the housing, that is, the movement back and forth, and the movement of the carry in the storage position, that is, the movement up and down, and simplifies the respective carry movement mechanisms. In order to unify the driving force applying means, it is designed to have a structure that can be switched in a timed manner, thereby ensuring downsizing, economical efficiency, and accuracy of operation. In particular, the invention described in item 1 makes the back-and-forth moving mechanism as small as possible, which protrudes until it is completely exposed and moves until it is completely retracted from the housing when the disc type record carrier is attached or removed when the carry moves in and out. Moreover, it is a front loading mechanism that is characterized in that it is configured to operate reliably, and the embodiment described in item 2 has one forward/backward moving mechanism and one loading/moving mechanism, and both are driven by a single drive. This is a front-loading mechanism that allows timing to be controlled by switching at the source.

Means for Solving the Problems" The present invention is a loading mechanism for a disc player having the following configuration in order to solve the above technical problems.

The basic structure of a disc player consists of 48 R segments of primary order. The first is the player housing, and the second is the
a turntable in the housing supporting a disc-shaped record carrier; an automatic mechanism for starting, driving or stopping the disc-shaped record carrier on the turntable; recording and reproducing information on the disc-shaped record carrier; The third part is a carry that holds and guides the disc-shaped record carrier to be played, and the fourth part is a carry that moves the carry to a position outside the player housing for taking out the disc-shaped record carrier. It is a conveying means that moves to project and store in the recording or reproducing position within the housing.

The present invention is characterized in that the loading mechanism, that is, the carry and conveying means in the disc player described in 1. is constructed as follows.

In other words, the basic structure of the conveying means is divided into a back and forth moving mechanism that moves the carry into and out of the player housing, and a mounting moving mechanism that moves the carry up and down to the recording or playback position within the housing, to which a driving force is applied. It is a combination of means.

In the present invention, as the longitudinal movement mechanism, a support member is attached to the sub-chassis in the player housing so as to sandwich the left and right sides of the carry, and the support member can be moved up and down at a predetermined position of the sub-chassis. The support member supports the carry so as to be able to move back and forth, and a load pinion gear is provided on at least one of the left and right support members, and the load pinion gear connects to a rack section provided along the moving direction of the carry. The load pinion gear is configured to mesh with each other, and the drive force applied from the drive force applying means rotates the load pinion gear, thereby moving the carry from the position at which the disk-shaped record carrier is taken out outside the player housing to the predetermined storage position within the housing. This is a front loading mechanism that is characterized by being able to move back and forth between the two. In other words, the structure of the forward and backward movement mechanism in which the carry is completely protruded and retracted is sufficiently novel, and although the loading and movement mechanism is necessary, it is of course not necessary to limit its specific structure. .

The invention described in item 2 is one of the embodiments of the above-mentioned invention, and the transport means includes a back-and-forth moving mechanism for moving the carrier into and out of the player housing, and a mounting moving mechanism for moving the carrier up and down to the recording or reproducing position in the housing. This is a front loading mechanism for a disc player, which is constructed by specifically dividing and combining this with a driving force applying means.

The back-and-forth movement mechanism is such that a support member is attached to the sub-chassis in the player housing so as to sandwich the right and left sides of the carry, and the support member can be moved up and down at a predetermined position on the sub-chassis. The carry is supported so as to be movable back and forth, and a load pinion gear is provided on at least one of the left and right supporting members, and the load pinion gear is configured to mesh with a rack portion provided along the moving direction of the carry. The load pinion gear is rotated by the driving force applied by the driving force applying means, thereby moving the carry back and forth from a position for taking out the disk-shaped record carrier outside the player housing to a predetermined storage position inside the housing. put.

On the other hand, the mounting and moving mechanism engages an elevating operating base material having an elevating rack hole with a support member mounted so as to be able to move up and down at a predetermined storage position of the sub-chassis, and a elevating rack gear is attached to the elevating operating base material. A driving gear is engaged with the lifting rack gear, and the driving gear operates the lifting operation base material, and the support member is configured to be moved up and down together with the carry at a predetermined storage position. ,
With such a configuration, the driving force applying means includes a driving source, an intermediate transmission mechanism, and a switching device, and switches the driving force from the driving source to the road pinion gear and the driving gear in a timely manner. By moving the carry back and forth and moving up and down in a timed manner, the carry can be stored and moved from the disk-shaped record carrier take-out position outside the player housing to the recording or playback position inside the housing, or vice versa. This front loading mechanism is characterized in that it can be moved in a protrusive manner from a playback position to a disk-type record carrier ejection position.

"Function" Since the conveyance means of the present invention is configured as described above, when the operator starts the drive source and selectively applies the driving force to the road pinion gear, the load pinion gear is activated. Rotate.

Then, the carry is moved forward (in the protrusion direction) by a rack part provided along the moving direction of the carry that meshes with the rack part. At this time, the support member supporting the carry does not move in the front-back direction.

In this way, the disk-type record carrier is held at 41i on the carry that has been protruded to the disk-type record carrier take-out position outside the player housing, and the drive source is started again to rotate the load pinion gear, and this time the carry is Make sure to move it backwards (in the direction of storage).

Next, the carry moving in the storage direction is moved by one line using the mounting and moving mechanism in correspondence with the playing means.

In this case, while the drive source is kept rotating, when the carry moves to a predetermined storage position, the driving force is switched in a timely manner so as to apply the driving force to the drive gear that constitutes the loading and moving mechanism. The drive gear meshes with a lifting rack gear provided on the lifting base, and the rotation of the drive gear operates the lifting base, thereby raising and lowering the supporting member together with the carry at a predetermined position. It is configured so that it can be done.

"Embodiments" The present invention will be described in detail below based on illustrated embodiments.

FIG. 1 is a schematic diagram showing the entire front-loading type disc player, and FIG. 2 is a perspective view showing the main components of the front-loading mechanism. The disc player includes a player housing 1, a playing means 2 located inside the housing 1, a carrier 4 for holding and guiding a disc-shaped record carrier 3 to be played, and a disc-shaped carrier 4 outside the player housing 1. Record carrier 3
and a conveying means 5 that moves so as to protrude to a take-out position and to be stored in a recording or reproducing position within the housing 1.

, as shown in FIG.
A rectangular opening 1b extending in the left-right direction is provided so that a carrier 4 supporting a disc-shaped record carrier 3 to be played can protrude to the outside of the player housing l.

Note that the directions described in this specification and drawings are as follows: arrow Y direction is forward, arrow X direction is leftward, and arrow Z is upward. .

As shown in FIGS. 1 and 2, a chassis 6 made of a steel plate is provided within the player housing 1, and the chassis 6 includes a turntable 7 that supports a disk-shaped record carrier 3; A performance means 2 consisting of a disk type record carrier 3 on the turntable 7, an automatic mechanism 7a for driving or stopping, a converter 2a for recording or reproducing information on the disk type record carrier 3, and the like; A carry 4 that holds and guides and transports a disc type record carrier 3, and a player housing l.
A conveying means 5 is provided which moves the disk-shaped record carrier 3 to a position for taking it out from the outside and for storing it in a recording or reproducing position within the housing l.

The present invention is an improvement regarding the loading mechanism, ie, the conveying means 5, of such a front-loading type disc player.

The conveying means 5 in the illustrated embodiment is designed to reduce the number of parts as much as possible, to reduce the overall size as much as possible, and to fully automatically move the disk-shaped record carrier 3 from the fully protruding position outside the housing to the playing position. It was developed in response to requests such as being able to move with a single motor, and its basic design concept is that the drive source is a single motor, and that the carry transport means is divided into a forward and backward movement mechanism and a loading and movement mechanism. However, the structure of the transport means should be simplified, the support member supporting the carry should be configured to move only up and down at a predetermined position, and the depth should be made as small as possible.

Hereinafter, the loading mechanism (transport means) in the disc player of the illustrated embodiment will be explained in more detail.

As mentioned above, the basic configuration of the conveying means according to the present invention is that the carrier 4 is connected to the player housing l.
This is a combination of a carry moving means consisting of a back-and-forth moving mechanism that makes the camera appear and disappear, and a mounting and moving mechanism that moves it up and down to the recording or reproducing position in the housing l, and a driving force applying means.

First, the carry 4, which is the basic component mentioned above, will be explained.

As shown in FIGS. 1 and 2, the carrier 4 has a record carrier holding portion 8 on the upper surface of a thin plate-like disc body, into which optical video disk type record carriers 3 having diameters of about 30 cm and 20 cm can be fitted, respectively. The illustrated carrier 4 has a rack portion 4a formed on the back surface near the side thereof, which runs along the moving direction of the carrier 4.

At the same time, guide grooves 4b are formed along the moving direction of the carrier 4 on the left and right side edges for guiding the carrier 4 to move while being supported.

Second, the means for holding the carrier 4 in the housing l and the back-and-forth movement mechanism for moving it back and forth will be explained.

As shown in FIGS. 2 and 3, the back-and-forth movement mechanism of the present invention includes a support member 11 mounted on the sub-chassis 6a in the player housing l so as to sandwich the right and left sides of the carry 4, and the support member 11 is It is configured to be able to move up and down at a predetermined position on the chassis 6a. The carrier 4 is supported by the support member 11 so as to be movable back and forth, and a load pinion gear 9 is provided on at least one of the left and right support members 11. This load-binion gear 9 is disposed at a position where it meshes with a rack portion 4a provided along the moving direction of the carry 4, and the load-binion gear 9 is rotated by the driving force from the driving force applying means, and the carry 4 is moved back and forth between a position for taking out the disk type record carrier 3 outside the player housing 1 and a predetermined storage position within the housing 1.

That is, the carrier 4 has a roller pin 18 and a guide pin 19 (see FIG.
It is supported in a direction parallel to the disk-shaped record carrier support surface of the turntable 7 (shown in FIG. 1) via a turntable 7 (shown in FIG. 3).

Moreover, the guide grooves 4b provided on the left and right edges of the carry 4
The guide pin 19 is fitted into the roller groove 4b provided on the bottom of the carry 4, and the roller pin 18 is fitted into the roller groove 4b provided on the bottom of the carry 4, so that the carry 4 can be projected and retracted in the direction of arrow Y and its opposite direction.
Support is provided so that movement can always be done in the correct posture.

In addition, as shown in Fig. 1, Fig. 2, Fig. 3, and Fig. 8,
The back and forth movement of the carry 4 is achieved by a rack portion 4a provided near the rear side of the carry 4 meshing with a load pinion gear 9 disposed on the support member 11, and the load pinion gear 9 being driven to rotate in both forward and reverse directions. By doing so, the carry 4 moves in the front and rear direction via the rack portion 4a.

In addition, the chassis 6, as shown in FIGS. 2 and 3,
It is a basic framework that can support and arrange various components. Sub-chassis 6a, 6a are formed rising up on both the left and right sides of this chassis 6. The sub-chassis 6a, 6a are shaped like side plates rising up from the chassis 6 along the inner sides of both left and right sides of the player housing 1, and most of the members of the loading mechanism are secured to the left and right sides of the sub-chassis 6a. and control the basic operations of each of these members. Then, the subchassis 6
a, 6a indicates the vertical direction (downward in the case of the illustrated embodiment)
Elevating and lowering guide holes 14 extending from the front to the rear are formed at predetermined intervals in the front and rear.

As shown in FIGS. 2 and 3, the support member 11 is formed of a rectangular steel plate support member, and roller pins 15a and 15b are provided on the outer surface thereof at predetermined intervals in the front and back direction. Two of them are formed to protrude outward. The roller pins 15a and 15b protrude in correspondence to the elevating guide hole 14 of the sub-chassis 6a and the elevating cam hole 16 of the elevating operation base 13, which will be described later. .16 at the same time. In other words, the support member 11 is the roller pin 1'5a
, 15b, and are attached to the sub-chassis 6a, 6a so as to be movable along the elevation guide hole 14. Further, on the inner surface of the support member 11, a plurality of guide rollers 18 and guide pins 19 for movably supporting the carrier 4 are arranged so as to protrude inward at predetermined intervals. There is. Furthermore, one side of the support member 11 formed as described above is formed with a bracket part 11a at the inner lower part, and the bracket part 11a is
A load pinion gear 9 is rotatably mounted on the mounting shaft 9a that protrudes further. As shown in FIGS. 2, 3, and 8, the load pinion gear 9 is divided into two upper and lower halves, 9U and 9QL, and has enough torque for the other party to slide the carry 4. It is incorporated with Paisuka.

Thirdly, the mounting and moving mechanism will be explained in detail.

As shown in FIGS. 2, 3, and 8, the mounting and moving mechanism of the illustrated embodiment includes a lifting and lowering base member 13.

The drive gear 22 is formed by two members.

As shown in FIGS. 2 and 3, the elevating operation base member 13 is a rectangular plate with elevating cam holes 16 on its side surfaces corresponding to the roller pins 15 of the support member 11 described above. The holes are drilled at predetermined intervals in the front-rear direction. As is clear from FIG. 3, the shape of each lifting cam hole 16 is as follows.
It consists of an inclined hole portion 16a that slopes upward (in the direction of arrow Z) toward the rear (counter to the direction of arrow Y) and stop hole portions 16b formed continuously at both ends thereof. Further, a lateral lifting rack gear 17 that is substantially parallel to the surface of the carry 4 is provided at the lower part of the lifting operation base 13, and a left-right interlocking drive with which a synchronized gear assay 20 is engaged with the lower edge of the rack gear 17 is provided. A rack gear 21 is formed downward.

The elevating base member 13 is attached to the outside of the left and right front sub-chassis 6a so as to be movable back and forth by means of roller pins 18 protruding in the front and rear directions of the support member 11, respectively.

The elevating and lowering operation base material 13 is configured as described above.

A drive gear 22 that meshes with the lifting rack gear 17 is provided,
The elevating rack gear 17 receives the driving force applied from the driving source via the driving gear 22, and the elevating operation base material 13
Move back and forth. By moving the elevating base member 13 in the front-rear direction, the support member 11 is moved in the elevating direction and the clamper is lowered.

That is, the mounting and moving mechanism includes a support member 11 mounted so as to be able to move up and down at a predetermined storage position of the sub-shelf 6a.
The lifting operation base material 13 having the lifting cam hole 16 is engaged with the lifting operation base material 13, and the lifting rack gear 1 is connected to the lifting operation base material 13.
7 is provided, and a drive gear 22 is engaged with the lifting rack gear 17, and the driving gear 22 operates the lifting operating base 13, and the supporting member 11 is stored together with the carry 4 and raised and lowered at a predetermined position. It is configured so that it can be moved.

Fourth, the driving force applying means will be explained.

The driving force applying means is composed of a driving source, an intermediate transmission mechanism, and a switching device, and applies the driving force from the driving source to the load pinion gear 9 and the driving gear 22 in a timely manner, thereby controlling the carry 4. By moving back and forth and moving up and down in a timed manner, the carry 4 can be stored and moved from the take-out position of the disk-shaped temperature carrier 3 outside the player housing 1 to the recording or playback position inside the housing 1, or vice versa. It protrudes and moves from the playback position to the disk-type record carrier ejection position.

The driving force applying means in the illustrated embodiment is shown in FIGS. 4, 5, and 6.
As shown in the figure, the gear box 2 is attached to the bottom of the chassis 6.
3 are arranged in one piece. It consists of a motor 24 as a driving source, a pulley assay 25 for decelerating the rotational force of the motor 24, a first gear 26, and a second gear 2.
7. An intermediate transmission mechanism consisting of a gear train such as a cycle gear 28, a change gear 29 that switches the transmitted driving force between the road pinion gear 9 and the drive gear 22, a change lever 30, a key lever 31, and a key lever 32. It consists of a switching device.

Fifth, the relationship between the specific driving force applying means, the back-and-forth movement mechanism, and the placement movement mechanism of the above embodiment will be explained in detail based on the drawings. First, the process from the state in which the carry protrudes from the housing 1 to the take-out position until it is housed in the housing 1 and the loading is completed will be explained.

When the carry 4 holds the disk-shaped record carrier 3 and drives the motor 24 as a drive source, the intermediate transmission mechanism is driven and applies driving force to the change gear 29 and the road pinion gear 9. meshes with the rack portion 4a of the carry 4, and moves the carry 4 in the storing direction.

A cycle gear 28 (intermittent gear) rotatably disposed at a position where it can mesh with a second gear 27 one stage before the final stage gear of the gear train disposed in the gear box 23. 28 idles until it reaches a position where it can mesh with the second gear 27 as -32 slides into the carry rail, and then rotates when it meshes with the second gear 27.

The cycle gear 28 is formed with a cam surface, and can come into contact with one end of a change lever 30 rotatably arranged around the rotation axis of the second gear 27, so that the cycle gear 28 rotates. Accordingly, the change lever 30 swings.

Further, since the rotation axis of the change gear 29, which is the final stage of the gear train, is formed in the change lever 30, the change gear 29 maintains its meshing with the second gear 27 due to the swinging of the change lever 30. , since the second gear 27 swings about the rotating shaft 27a, the engagement with the load pinion 9 is released and the retraction of the carry 4 is stopped.

When the carry 4 is moved in the storing direction to near the predetermined position of the main body (approximately 7 mm before the predetermined position), as shown in FIG. The rotatably disposed carry lever 32 comes into contact with this, and then the carry lever 32 slides in conjunction with the carry pull-in operation.

Note that it is important that the center of the turntable and the center of the disc placed in the carrier 4 coincide with a certain degree of accuracy, so the storage position in the housing of the carrier 4 is determined by the stopper 33 of the support member 11 and the center of the disc placed in the carrier 4. Positioning is performed by the contact between the parts 4 and 4 (Fig. 6).

Furthermore, the timing for releasing the engagement between the change gear 29 and the road pinion gear 9 must be set after the carry 4 and the stopper 33 come into contact, and the excess stroke during that time must be divided into two parts by the road pinion gear 9. It is solved by

In other words, the load pinion gear 9 is divided into an upper load pinion gear 9a and a lower load pinion gear 9b, and is incorporated with a piston with sufficient torque for the other party to slide the carry 4, and after the carry stops, the change gear 29 and the road pinion gear 9 are released, the surplus is absorbed by the relative rotational movement between the road pinion gear 9a and the road pinion gear 9b.

Next, change lever 3 is moved from the position where change gear 29 and road pinion gear 9 were disengaged.
By performing the zero swing, the change gear 29 and the drive gear 22 mesh with each other.

Since the elevating rack gear F formed on the lower side surface of the elevating operation base member 13 is engaged with the drive gear 22, the elevating rack gear 17 slides in the front-rear direction as the drive gear 22 rotates.

On the other hand, a left-right interlocking drive gear 21 is formed on the lower edge of the right-hand lifting operation base member 13, and is in mesh with the gear 20a on one side of the synchronized gear assay 20.
The other gear 20b meshes with the left-right interlocking drive rack gear 21 provided on the lower edge of the left-hand lifting base 13, so the sliding movement of the lifting rack gear 17 is controlled via the synchronized gear assay 20 for the left-hand lifting operation. The transmission is transmitted to the base material 13, and the elevating rack gear 17 and the left elevating operating base material 13
a are operated synchronously.

In other words, as the left and right lifting operation base members 13, 13a and the lifting rack gears 17 slide, the left and right support members 11 perform a downward movement, and the carry 4 engaged with the support member 11 also performs a downward movement. As a result, the disk type record carrier 3 placed in the carry 4 is mounted on the turntable 7.

After that, when the left lifting operation base 13 and the lifting rack gear 17 continue to slide, the clamper engaged with the spring-biased clamper holder 35 moves against the disk mounted on the turntable 7. Type record carrier 3
The disc-shaped record carrier 3 is thereby held between the turntable 7 and the clamper. After that, with a certain margin, the left lifting operation base 13. Lifting rack gear 1
7 stops and the loading operation is completed.

Incidentally, since the change lever 30 swings back and forth once when the cycle gear 28 rotates once, a keep lever 31 is provided as a member to maintain the engagement between the change gear 27 and the drive gear 22.

Next, the process of unloading operation will be explained.

The change gear 27 and the drive gear 22 are connected to the keep lever 3.
1, the engagement is maintained, and as a result of the reverse rotation of the motor 24, the left lifting/lowering actuating member 13a slides in the opposite direction to that during loading, and the carry 4 performs an upward movement.

When the upward movement of the carry 4 reaches a predetermined position, the slope portion 35 formed on the lifting rack gear L7 contacts the pin portion of the keep lever 31, and the keeping lever 31 moves counterclockwise due to the sliding of the lifting rack gear 17. When the change lever swings in this direction, the contact state between the pin portion of the change lever and the keep lever 31 is released.

Since the change gear 29 is biased with a counterclockwise rotational force by a spring force, the contact state between the change lever 30 and the keep lever 31 is released. As a result, after the change gear 29 and the drive gear 22 are disengaged, the change gear 29 and the load pinion gear 9 are engaged with each other, and the carry 4 is moved to protrude from the main body.

When the protrusion distance of the carry 4 reaches a predetermined amount, the protrusion of the carry 4 comes into contact with the carry position detection switch, so that the motor rotation is stopped and unloading is completed.

"Detailed Description of the Invention" As described above, according to the present invention, when a disc-shaped record carrier is to be mounted on the carrier, the carrier automatically places the disc-shaped record carrier from inside the player housing. Since the disk protrudes to a sufficient position, the user can more easily mount the disk-type record carrier.

In addition, after attaching the disk type record carrier to the carrier,
Just by pressing -/, the back and forth movement mechanism is activated and the carry is automatically moved in the opposite direction of the Y arrow so that it is housed in the player housing. Thereupon, the driving force applying means is switched and the placing and moving mechanism is activated to place and move the disk-shaped record carrier in the vertical direction at a predetermined position, thereby accurately moving the disk-shaped record carrier to the recording or reproducing position. Further, when the performance is finished, the disk-shaped record carrier can be automatically moved from the performance position to the take-out position outside the housing so as to protrude.

As described above, the present invention is not only capable of completely automatically protruding and storing a disk-type record carrier, but also
In addition to being able to further downsize and simplify the device, it is possible to use a single drive source to provide driving force while switching between the forward and backward movement mechanism and the A position movement mechanism, saving labor. It was also successfully developed. Therefore, the present loading mechanism is much superior in its practicality compared to conventional ones.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing the overall configuration of the loading mechanism and playing means of a disc player according to the present invention, FIG. 2 is an exploded perspective view of main components of the loading mechanism according to the present invention, and FIG. )(B) is an enlarged exploded perspective view of the main components, FIG. 4 is an exploded perspective view of the components constituting the driving force applying means, and FIG. 5 is a side explanation showing the configuration of the loading mechanism according to the present invention. 6 is an explanatory plan view showing the configuration of the driving force applying means, FIG. 7 is an explanatory side view of the main part showing the related operating state of the keep lever and the carry, and FIG. 8 is an explanatory plan view showing the rack portion of the load pinion gear and the carry. FIG. 9 is an exploded perspective view showing a conventional loading mechanism. Explanation of symbols of main parts 1... Player housing 3... Disk type record carrier 4... Carry 6... Chassis 6a... Sub Chassis 7...Turntable 9...Load pinion gear 11...Support member 13...Elevating operation base material 14...Elevating guide hole 16 ...Elevating cam hole 20 ... Synchro gear assay 22 ...
・Drive gear 24...Motor 29...Change gear 32...Carry lever patent applicant, <4*=7a3Aya1,~'・7
1.Figure 4Figure 7Figure 8

Claims (2)

[Claims] (1) A player housing, a turntable disposed within the housing that supports a disc-shaped record carrier, an automatic mechanism for starting, driving or stopping the disc-shaped record carrier, and an automatic mechanism for recording or reproducing information on the disc-shaped record carrier. a playing means including a transducer etc.; a carry for holding and guiding a disc-shaped record carrier to be played; Alternatively, in a disc player comprising a transport means that moves to store it in a playback position, the transport means includes a back and forth moving mechanism that moves the carrier into and out of the player housing, and a mounting device that moves up and down to the recording or playback position in the housing. It is composed of a moving mechanism and a driving force applying means, and the back and forth moving mechanism is provided with supporting members that sandwich both left and right sides of the carry on a sub-chassis within the player housing, and the supporting members are placed at predetermined positions of the sub-chassis. At the same time, the support member supports the carry so that it can move freely back and forth, and a load pinion gear is provided on at least one of the left and right support members, and this load pinion gear controls the movement of the carry. It is configured to mesh with a rack section provided along the direction,
The load pinion gear is rotated by the driving force applied from the driving force applying means, and thereby the carry is moved back and forth between the position at which the disk-shaped record carrier is taken out outside the player housing and the predetermined storage position within the housing. A front loading mechanism for a disc player characterized by: (2) The conveyance means is composed of a back and forth movement mechanism that makes the carry appear and disappear with respect to the player housing, a placement movement mechanism that moves the carry up and down to the recording or playback position in the housing, and a driving force applying means, and the said back and forth movement. The mechanism is such that a support member is attached to the sub-chassis in the player housing that holds the left and right sides of the carry, and the support member can be moved up and down at a predetermined position on the sub-chassis. The carrier is supported to be movable, and a load pinion gear is provided on at least one of the left and right support members, and this load pinion gear meshes with a rack provided along the direction of movement of the carry, and is driven by the load pinion gear. The carry is configured to move back and forth from the disk-type record carrier take-out position outside the player housing to a predetermined storage position within the housing, while the loading and moving mechanism is configured to move up and down at the storage predetermined position in the sub-chassis. An elevating operating base member having an elevating cam hole is engaged with the mounted support member, and an elevating rack gear is provided on the elevating operating base member, and a driving gear is meshed with the elevating rack gear. The lifting actuating base member is actuated by the drive of the carrier, and the support member is configured to be moved up and down together with the carrier at a predetermined storage position, and the driving force applying means is configured to include a drive source, an intermediate transmission mechanism, and a switching device. By synchronously switching and applying driving force from the drive source to the road pinion gear and the drive gear, and moving the carry back and forth and up and down in a synchronous manner, the carry can be moved into a disc-shaped structure outside the player housing. A patent characterized in that the record carrier is stored and moved from the take-out position to the recording or playback position in the housing, or conversely moved protrudingly from the record or playback position to the take-out position of the disk-shaped record carrier. A front loading mechanism for a disc player according to claim 1.