JPH0366743B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a record loading device for a record player, and in particular, it sets a record to a loading position on a turntable by driving a record support member, and also sets the record at a loading position on a turntable. The present invention relates to a record mounting device for a record player that is moved to a mounting position.

2. Description of the Related Art Conventionally, there is a record player device that can play a record while it is pressed between a turntable and a pressing member, such as the one shown in Japanese Utility Model Publication No. 49-9056. With this type of device, the user holds the record directly in his/her hand and inserts it between the turntable and the crimp member, and when the record is placed on the turntable, the edge of the record is inside the device. When a switch or the like comes into contact with the turntable, the switch is turned on, and based on the turn-on of the switch, the turntable is raised and the record is pressed between the pressing member and the turntable, and the record is played.

In such devices, the user must manually insert the record into the narrow space between the turntable and the crimping member and place it on the turntable. During this operation, the surface of the record is There have been problems in that the turntable or the crimping member may damage the disc, and in some cases, the end of the record may damage the device itself.

Therefore, in order to solve the above-mentioned problems, the present invention provides, when a user places a record disc on the record receiving member, the record disc is moved to a transport position within the player and a transport position where the record disc can be taken out from the player. and drive the record receiving member when the turntable is retracted, that is, when the turntable is separated from the record placed on the record receiving member. The safe transport of vinyl records was achieved by arranging the system so that the record discs could be transported safely.

Furthermore, with the record receiving member carrying the record into the loading position, the turntable is moved from the first position away from the record to the record playing position (second position), so that the record is loaded. By attaching the disc and configuring it so that it can be played at the second position, it is possible to safely transport the record and to start playing in a short time after the record is brought in. It is.

Embodiments of the present invention will be described in detail below with reference to the drawings. As shown in Figures 1 and 2, 1L is
LP record, 1E indicates EP record. In this record player, record modes 1L and 4E are inserted into the record insertion slot 3 provided in the player body 2.
It is inserted in the state shown by the one-dot chain line in the figure, and then installed in the playback position (the state shown by the two-dot chain line in Figure 2) using a record lifting mechanism and a record mounting mechanism, which will be described later, and played in the vertical position. Furthermore, this record player is capable of playing back both sides of a record.

In Fig. 1, reference numeral 4 denotes an operation button, which is used to instruct the turntable, pickup, etc., to be described later, to load/unload a record, to play, to stop, etc., using a control circuit (not shown) (description is omitted). be. Reference numeral 5 denotes a record size switching knob, which is fixed to a switching lever 63 (described later), and can be switched according to the size of the performance record.
This is used to set the rotation speed of the turntable, the position of the record insertion guide, and the starting position of the pickup. Further, the player main body 2 is provided with a front display window 6 and a rear display window 7 in order to observe the state of the record and trace that are mounted.

FIG. 3 is an overall view (partially omitted) showing the internal device of this player, and the device will be explained in detail below with reference to FIG. 3 and the following figures.

FIG. 4 is a perspective view showing the drive device for the record lifting mechanism, FIGS. 5 and 6 are front and side views showing the record lifting mechanism and the insertion slot guide mechanism, and FIG. 7 is a perspective view of the record holder. As shown in FIGS. 4 and 5, a rotary plate 9R and a support arm 10R are fixedly attached to a shaft 8R rotatably mounted on the back plate 2a of the player body, and are configured to rotate together. has been done.

Further, as shown in FIG. 4, a support plate 1 is attached to the shaft 11 fixed to the back plate 2a by an angle not shown.
2 is rotatably attached, and this support plate 12 rotatably supports a shaft 13, to which a rubber roller 13a and a worm gear 13b are fixed. A link 14 is attached to the back plate 2a by an angle (not shown) so as to be rotatable about a shaft 14a, and one end thereof is attached to the support plate 12.
The shaft 13 is rotatably fixed to the core 15a of the support arm starting plunger 15 whose other end is fixed to the back plate 2a, thereby connecting the two. Also, the link 14 has a spring 1 fixed at one end to the back plate.
4b is always rotated in the direction of arrow B in FIG. The rubber roller 13a is brought into pressure contact with a back surface 35b of a flywheel 35, which will be described later, only when the vehicle moves backward. A reduction gear 16 is rotatably attached to the back plate 2a, and this large diameter portion 16
a has a diameter portion 16b attached to the worm gear 13b.
is the gear portion 9 provided on the outer periphery of the rotary plate 9R.
a, respectively.

As shown in FIGS. 5 and 6, one end of the connecting arm 17 is rotatably attached to the rotating plate 9R.
The other end of the connecting arm 17 is rotatably attached to a rotary plate 9L fixed to a shaft 8L provided on the back plate 2a at a position symmetrical to the shaft 8R. A support arm 10L is also fixed to the shaft 8L symmetrically with the support arm 10R, and is configured to rotate together with the rotary plate 9L. Record holders 18R and 18L are fixed to these support arms 10R and 10L, as shown in FIGS. 5-7. As shown in FIG. 7, each of the record holders 18R and 18L has a first mounting part 18c that supports the record when the record is lowered from insertion, a second mounting part 18b that supports the record when it is raised, and a second mounting part 18b that supports the record when it is raised. A moving oblique surface 18c is formed continuously on the second mounting section 18b in order to move the record to the first mounting section 18a again later.

With the above configuration, the rotation of the flywheel 35 is controlled by the rubber roller 13a, the shaft 13, and the worm gear 13.
b, the deceleration is transmitted to the rotary plate 9R via the reduction gear 16, and the connecting arm 17, the rotary plate 9L, and the shafts 8R, L
The left and right support arms 10R and 10L are operated via the recorder to perform a record lifting and lowering operation, which will be described later.

As shown in Figures 5 and 6, the left side plate 2 of the player body
A pin 19a is fixed to b, and a slide plate 19 is supported so as to be slidable in the vertical direction as shown in FIGS. 5 and 6 via an elongated hole 19e. This slide plate 19
One of the bent portions 19b is engaged with a pin 9La protruding from the rotating plate 9L through its elongated hole 19c, and is configured to slide as the rotating plate rotates. Also, the other bent portion 1 of the slide plate 19
9d is an engaging portion 20 at one end of the arm 20 rotatably supported by a pin 20a protruding from the left side plate 2b.
b. An insertion slot guide roller 21F, which serves as one of the guides when inserting a record, is rotatably attached to this arm 20 by a shaft 20c. It is fixed to an arm 20' which is rotatably mounted by 'a'. These arms 20, 20' and the guide roller 21F are urged to rotate clockwise in FIG. 6 by a spring 20d attached between the arm 20 and the left side plate 2b.
When the record is in the raised position shown in FIGS. a and 6a, that is, when the arm 10 is rotated at its upper limit, it is in a position where its rotation is restricted by the bending portion 19d of the slide plate 19.
Another insertion port guide roller 2 rotatably supported by a shaft 21a fixed to the left and right side plates 2b, c.
1R, a distance t ₁ corresponding to the thickness of the record 1 is formed between the record member 1R and the record member 1R, and is configured to guide the insertion of the record. Further, pins 22 and 22' protruding from the left and right side plates 2b and 2c are used to restrict rotation of the arms 20 and 20' when a record is mounted, which will be described later.

With the above configuration, when the record is lowered, the slide plate 19 is slid by the rotation of the rotary plate 9L,
It releases the restriction on the arm 20 and acts to cut off the interference between the record and the guide roller 21 when the record is mounted and rotated, which will be described later.

Next, the record mounting mechanism and the record center guide mechanism will be explained with reference to FIG. 3 and FIGS. 8 to 11.

Figures 8 and 9 show the drive device of the record loading mechanism.
10 and 11 show the record pressing mechanism and the record center guide mechanism.

As shown in FIGS. 8 and 9, a support plate 23 is rotatably supported by a shaft 23a protruding from the back plate 2a. A drive shaft 24 having a threaded portion 24a in a part is rotatably attached to the support plate 23, and a rubber roller 25 that can be pressed against the inner surface of a flywheel 35, which will be described later, is fixed to one end of the drive shaft 24. A nut 26 is fitted into the threaded portion 24a, and is movable on the shaft by the screwing action caused by the rotation of the drive shaft 24. A sliding bearing 27 is fixed approximately at the center of the back plate 2a. This sliding bearing is provided with a notch 27a,
A rotary bearing 28 is slidably supported, and a driven pin 28a protruding from the rotary bearing 28 is inserted into the notch 27a. Furthermore, the rotation bearing 28
A turntable shaft 30 having a turntable 29 fixed to one end thereof is rotatably supported while being prevented from coming off. A shaft 31a is also fixed to the back plate 2a at an angle, and a drive lever 31 is slidably supported on the shaft 31a through an elongated hole 31b. One end of this drive lever is connected to the nut 26 through a screw 31c, and the other end is connected to the driven pin 28a of the rotary bearing 28 through an elongated hole 31d.
Further, a plunger 32 is fixed to the back plate 2a, and an iron core 32a of the plunger 32 is connected to the support plate 23 by a connecting arm 33. Further, the support plate 23 is biased in the direction of arrow C in FIG. 8 by a spring 34 attached between it and the back plate 2a. Reference numeral 35 in FIG. 8 is integrally formed with the turntable 29 (not shown in FIG. 8), and as shown in FIG. A rotary driven flywheel is shown. Further, 35a is the inner surface of the flywheel.

With the above configuration, the rotation of the flywheel is transmitted to the drive shaft 24 by the rubber roller 25, and the drive lever 31 is rotated by the screwing action of the threaded portion 24a and the nut 26, and the rotation bearing 28 is transferred to the turntable shaft 30. , turntable 2
9. It is moved back and forth with respect to the sliding bearing 27 together with the flywheel 35 to perform record loading/unloading operations.

As shown in Figures 10-11, the turntable 2
9 is provided with a recess 29a, in which an EP adapter 38 is housed via a spring 38a.
An annular screw 39 prevents it from coming off. A rubber disc 40 is also attached to the turntable 29 and forms a record pressing surface 41. Further, the outer diameter of the turntable is made smaller than the label surface of the record.

A pressure bonding plate support 42 is fixed to the front plate 2d of the player main body 2. This crimping plate support base 42 has a notch 4 through which a crimping plate spring 45 (described later) passes.
2a, and a tapered surface 42c is continuously formed in the center hole 42b. Crimping plate 43
has its support shaft 43a fitted into the center hole 42b of the crimping plate support 42, and is prevented from coming off by a stopper 44. In addition, the support shaft 43a
is formed in such a thickness that it does not come into contact with the center hole 42b when the crimping plate 43 is positioned at the center. Further, the stopper 44 is formed with a tapered surface 44a having the same slope as the tapered surface 42c of the crimping plate support 42. The tip of the support shaft 43a of the crimping plate 43 is pressed by a crimping plate spring 45 whose one end is fixed to the front plate 2d. Due to the abutting action of the surfaces 42c and 44a, the center of the crimping plate and the center of the turntable shaft 30 are positioned to be the same. In addition, a rubber disc 46 for crimping the record is attached to the front of the crimping plate 43 to form another record crimping surface 47, and a rubber disc 46 for crimping the record is installed in the center to determine the center position of the crimping plate when the record is mounted. A center hole 43b that engages with the turntable shaft 30 is provided for this purpose. Furthermore, a recess 43c is provided in which an EP adapter is fitted when an EP record is installed. Further, the outer diameter of the pressure bonding plate is configured to be smaller than the label surface of the record.

With the above configuration, the records 1L and E are positioned at the mounting position by the record lifting mechanism,
The drive mechanism of the mounting mechanism moves the turntable shaft 30, turntable 29, etc. forward, and the pressure plate spring 45 presses the record 1L, E.
, the crimp surface 41 of the turntable 29 and the crimp surface 4
7.

The front plate 2d further has one end rotatably supported by a conversion lever 48 and a record center guide plate 49 by an angle.A bending portion 48a of the conversion lever 48 has a bent tip of the compression plate spring 45. The bent portion 45a and the bent portion 49a of the center guide plate 49 are engaged with the tip bent portion 48b of the conversion lever 48, respectively, and are connected to each other. There are three bends 4 on the center guide plate 49.
A record center guide wheel 50 is attached to each of the record center guide wheels 9b so as to be rotatable in a circumferential direction on a concentric circle.

With the above configuration, the center guide plate is in a rotational position tilted forward due to the bias of the crimping leaf spring 45, and the guide wheel 50 is slightly protruded forward by the crimping surface 47 of the crimping plate 43. serves as a guide when the record is raised and lowered by the record lifting mechanism, and when the turntable 29 rotates and moves forward and backward during the record mounting process, the records 1L and 1E are also rotated by the friction of the rubber disc 40. The records 1L and 1E are appropriately guided while moving backward by the deflection of the compression plate spring and the rotation of the conversion lever.

In addition, a crimping completion detection switch _S1 is installed on the front plate 2d.
is attached, and its differential S _1a is positioned so as to be switched by rotation of the conversion lever 48. This crimping completion detection switch S ₁
is connected to a control circuit (not shown), and the eighth
The rubber roller 25 is brought into pressure contact with the inner surface 35a of the flywheel by the suction of the plunger 32 shown in the figure, and the turntable 29 is advanced through various mechanisms, and the records 1L and E are placed on the turntable 29 and the pressure bonding plate 43, respectively. The amount of deflection of the leaf spring 45 that is securely attached to the crimp surfaces 41 and 47 (that is, the amount of deflection of the conversion lever 4
8), and the control circuit stops the suction of the plunger 32 and stops the forward movement of the turntable 29.

Next, according to figures 12 to 16, the pick-up mechanism,
The pickup fast forward mechanism and record size switching mechanism related to this will be explained.

During playback, the pick-up device of this player will
The pick-up arm moves down the slope under its own weight to follow the sound groove of the record, and during fast forwarding, the playback needle is moved away from the sound groove, causing a part of the pick-up arm to come into contact with a rubber belt that is driven to rotate as appropriate. It is of the form. Further, the pickup devices of this player are provided with two pairs of pickup devices symmetrically on the front and back so that the front and back sides of the record can be played back without changing the front and back sides.

As shown in FIGS. 3, 12, and 14, the right side plate 2c (not shown in FIGS. 12 and 14) of the player body 2 includes:
The guide rail 51F is attached with a slight inclination so that it becomes lower toward the center of the turntable 29. On this guide rail 51F, a front playback pick-up arm 53F is placed by two rotatable pulleys 52F, and during playback, the force of movement towards the center of the turntable 29 due to its own weight and the sound of the record. The inclination of the guide rail 51F is set so that the turntable 29 moves toward the center of the turntable 29 on the guide rail 51F due to the inward force caused by tracing the groove.

The right side plate 2c (not shown in FIG. 12) also has an arm lift operation plate 54F rotatably supported at one end, and the other end is similarly supported by the front plate 2d by an angle not shown. There is. This operating plate 5
4F, an engaging portion 55Fa at one end of a link 55F rotatably attached to the right side plate 2c is engaged with the bent portion 54Fa. This link 55F
The other end is connected to the iron core 55Fa of the arm lifting plunger 56F fixed to the right side plate 2c.
Further, it is biased counterclockwise in FIG. 12 by a spring 55Fb attached between it and the right side plate 2c. As a result, the link 55F rotates the actuating plate 54F in the clockwise direction in FIG. 53F
As shown in FIG. 12a, the regenerating needle 57 is rotated clockwise around the guide rail 51F.
Fa is separated from records 1V and E. 5
7F is a cartridge fixed to the tip of the pick-up arm. At the other end of the pick-up arm, a driven portion 53Fb is formed of a rubber material or the like and can be brought into pressure contact with a fast-forwarding rubber belt 6P, which will be described later. The front panel 2d is provided with a front display window 6 for observing the trace state on the front surface of the record. For this reason, several light bulbs 6a are provided at the rear of the display window to facilitate observation of the trace state.

As shown in FIGS. 3 and 15, an angle 58L is attached to the left side plate 2b, and a pick-up fast-forward motor 59 is fixed to this angle. A pinion gear 59b attached to an output shaft 59a of this motor 59 meshes with a gear 60a rotatably attached to a shaft 58La protruding from an angle 58L, and a pulley 60L is integrally formed with this gear 60a. ing. An angle 58R is fixed to the right side plate 2c, and a pulley 60R is rotatably supported on a shaft 58Ra protruding from the angle 58R. And these pulleys 60R, 6
A rubber belt 61 for quick-forwarding the pick-up is suspended on the 0L, and is appropriately driven by the motor 59. Further, driven portions 53Fb and 53Rb of pick-up arms 53F and 53R are configured to come into pressure contact with this belt 61.

FIG. 13 shows a pickup device for the rear side of a record and its display device.

The pick-up device for the rear side of the record is the same mechanism as the pick-up device for the front side of the record, which is symmetrically provided on the back side of the loaded record, and therefore a description thereof will be omitted.

As shown in the figure, a mirror 62a is provided at an angle (not shown) near the cartridge 57R of the rear pickup device. The configuration is such that the tracing state of 57R can be observed from the rear display window 7 through an optical path as indicated by arrow F. In addition, several light bulbs 7a are provided behind the mirror 62a for illumination.

FIG. 16 is a perspective view showing the record size switching mechanism, showing a state in which it is switched for LP records.

A switching lever 63 is slidably attached to the front plate 2d through a guide shaft 63a and a pin 63a' in the elongated hole _2d1 , and is always operated by a spring 64 attached to the pin 63a and the front plate. , both are energized at the sliding limit position. This switching lever 6
The bent portion 63b of No. 3 is positioned so as to come into contact with the side portion of the driven portion 53Fb (not shown in FIG. 16) of the front pickup arm 53F. Further, the guide shaft 63a protrudes below the insertion slot 3 so as to guide the outer periphery of the record when the record is inserted. Another bent portion 63 of the switching lever 63
One end of a link 65 rotatably fixed to the top plate 2e of the player main body 2 is rotatably attached to c. The other end of the link 65 is rotatably connected to a bent portion 66a at one end of a sliding plate 66 that is slidably supported by the inner plate 2f of the player body 2. The sliding plate 66 has the aforementioned guide shaft 63a.
A guide shaft 66b is provided to project and guide the outer periphery of the record in cooperation with the guide shaft 66b. Further, the bent portion 66c is similar to the bent portion 63b of the switching lever 63, and the driven portion 53 of the rear pickup arm 53R.
It is positioned so that it can come into contact with the side of Rb.

By operating the switching knob 5 fixed to the switching lever 63, the position is switched between the EP record position and the LP record position, and in addition to regulating the operating position of the outer circumferential guide and pickup when inserting a record, it also operates a switching switch (not shown). It is used to change the rotation speed of the motor 36, etc.

This player device is configured as described above.

Next, the operation of this player device will be explained.

First, the record mounting operation will be explained with reference to FIGS. 1 to 11. As shown in FIG. 1, when loading records, first insert the records 1L and 1E into the insertion slot 3. In this case, guide rollers 21F and 21 are provided in the thickness direction of the record as shown in FIGS.
R is a guide shaft 63a in FIG. 16 in the circumferential direction,
66b serves as an insertion guide. At this time, 3rd, 5a,
As shown in figures 6a and 7a, support arms 10R and 10
L is at the upper limit rotation position, and as shown in FIG. 7a, the record receivers 18R and 18L are oriented so that the movable slope 18c can support the record. Therefore record 1
When L and E are placed on this slope, they move along the slope as shown by arrow A and are supported at a position continuous with the placing portion 18a. This state is shown by the dashed line in FIG. 2.

From this state, by operating the operation button 4, the motor 36, plunger 15,
The record is loaded by operating the plunger 32 or the like.

When the record loading button of the operation buttons 4 is operated, the motor 36 starts rotating clockwise in FIG. 3 by a control circuit (not shown), and the pulleys 36a,
A flywheel 35 is driven in the same direction via a belt 37. Therefore, the rubber roller 13a, which is pressed against the back surface 35b of the flywheel 35 by the spring 14b, begins to rotate in the direction of arrow B, as shown in FIG. Therefore, this rotation is caused by the shafts 13,
Worm gear 13b, gear part 16a, gear part 16
b, the deceleration is transmitted to the rotating plate 9R via the gear portion 9a, and the rotating plate 9R is rotated counterclockwise in FIG. 5a. Here, the rotation of the rotating plate 9R is transmitted to the left rotating plate 9L via the connecting arm 17,
Rotate this clockwise in the figure. The rotation of these left and right rotating plates 9R and 9L is based on each axis 8.
The support arms 10R and 10L are rotated through the support arms R and 8L so that the record holders 18R and 18L are lowered. Therefore, the records 1L and E placed on the record holders 18R and 18L are connected to the rotating plate 9, the connecting arm 17, and the supporting arm 1, as shown in FIG. 5b.
0, etc. is moved to the position shown by the solid line in the case of LP record 1L, and to the position shown by the one-dot chain line in the case of EP record 1E, and is lowered to the position shown by the two-dot chain line, where the arm rotation position (not shown) is detected. By the means, the plunger 15 shown in FIG. 4 is energized to rotate the support plate 12 via the link 14,
By separating the rubber roller 13a from the flywheel back surface 35b, the lowering operation of the records 1E and L is stopped, and the positioning of the records (that is, the position where the center of the record and the turntable shaft 30 are on the same line) is completed. (The plunger 15 moves forward after the turntable, which will be described later, moves forward.
The rotation position of the support arm 10 is selected here by the record size switching lever 63 shown in FIGS. 3 and 16 and a control circuit not shown.

Simultaneously with the lowering of the record 1, the front guide roller 21F is moved to the release position by the rotation of the rotating plate 9L. That is, in FIG. 5a, the rotating plate 9L
When the pin 9La is rotated clockwise, the long hole 1 is inserted into the pin 9La.
A slide plate 19 connected via 9c slides upward. Therefore, the spring 20d is always
The bent portion 1 of the slide plate 19 is rotated in the release direction (clockwise in FIG. 6a) by the
Arm 2 whose rotation was prevented by 9d
0 rotates in that direction, and as shown in Figure 6b, pin 2
Move to the position regulated by 2. This release operation prevents the record 1 from interfering with the guide rollers 21 even if the record 1 moves forward and rotates at the mounting position as shown in FIG. 6b during the record pressing operation to be described later.

Next, of the record mounting operation, the pressing operation by moving the turntable forward will be explained.

The record 1 is lowered to the mounting position, and the plunger 15 is detected by the support arm rotation position detection means described above.
is turned on and the record stops descending, the plunger 3 shown in Fig. 8 is activated by a control circuit (not shown).
2 is energized and the support plate 22 is connected via the connecting arm 33.
3 is rotated about the shaft 23a in the direction of arrow C' in the figure against the spring 34. For this reason, the rubber roller 25 is attached to the flywheel inner surface 3.
5a, and is thereby rotationally driven in the direction of arrow C. Therefore, in the state shown in FIG. 9a (at this time, the turntable 29 is in the first position for separating from the record), the threaded part 24a formed coaxially with the rubber roller 25 and the threaded part 24a fitted therein are The nut 26 moves to the right on the shaft 24 due to the screwing action with the nut 26 that is being rotated. Therefore, the drive lever 31 connected to the nut 26 has a shaft 31a.
The rotary bearing 28, which rotates clockwise in the figure with the rotational bearing 28 as its center and engages the driven pin in its elongated hole 31d, is inside the sliding bearing together with the turntable shaft 30, turntable 29, and flywheel 35. is moved to the left in the same figure, resulting in the state shown in FIG. 9b (at this time, the turntable 29 is in the second position for loading and playing a record).

The record is loaded by forward movement of the turntable 29 and the like. This will be explained below with reference to FIGS. 10-11 and FIGS. 6b and 7.

As shown in FIG. 10a, the records 1L and E positioned by the above-mentioned record lifting mechanism are in the state shown in the figure, and the front surface of the records 1L and 1E is in the state shown in the figure. The center guide plate 49 is in a forward tilted rotating position and is in contact with the three guide wheels 50, and the rear surface is in contact with the support arms 10R and 10L (not shown in FIG. 10), etc.
It is designed so that it does not wobble back and forth. When the turntable 29 is moved forward together with the turntable shaft 30 by the above-mentioned turntable forward drive means with the turntable 29 in the first position, in the case of the EP record 1E, as shown in FIG. EP adapter 3 to 1Ea
8 is fitted, the center shaft 43a is pressed by the crimping plate spring 45, and the crimping plate is centered by the action of the tapered surface 44a of the stopper 44 and the tapered surface 42c of the crimping plate support 42. 43 in the center hole 43b and recess 43c, respectively.
The turntable shaft 30 and the EP adapter 38 are fitted together. The record 1E is then held between a pressure bonding surface 41 formed by a rubber plate 40 on the turntable 29 and a pressure bonding surface 47 formed by a rubber plate 46 on the pressure bonding plate 43. Further, in order to obtain a pressing force for holding the record, the turntable 29 moves forward slightly together with the record 1E and the pressing plate 43 while bending the pressing plate spring 45. Due to this forward movement, the record 1E first moves in the direction of arrow D, as shown in FIGS. The information on the mounting section 18b is taken to a floating position to cut off any interference with the record receiver 18 and the support arm 10. Further, the crimping plate 43 is normally brought into abutting engagement with the crimping plate spring shown in FIG. 10a to position the sensor.
4 and the tapered surface 42 of the support base 42.
As shown in FIG. 10b, interference with any fixing means other than the abutment between the central axis 43a and the crimp leaf spring 45 is cut off. Incidentally, the sensor positioning of the crimping plate at this time is performed by fitting the turntable shaft 30 and the center hole 43b. Further, due to the deflection of the crimp leaf spring 45, the conversion lever 48, which is connected to the bent portion 45a thereof by the bent portion 48a, rotates clockwise in FIG. 10a. Furthermore, the center guide arm 49 connected to the bent portion 48b by a bent portion 49a rotates counterclockwise in the figure. Since the rotation of the center guide arm 49 is magnified by the conversion lever 48, the amount of deflection of the crimping leaf spring 45, that is, the amount of retraction of the crimping plate 43, is larger than the amount of deflection of the crimping plate spring 45, which guides the record when not crimped. The guide wheel 50 that was used was 10
Move away from record 1 as shown in figure b. The above-mentioned record crimping operation is performed by detecting the magnitude of the crimping force, that is, the amount of deflection of the crimping leaf spring 45, by a crimping completion detection switch _S1 configured to change over it with a conversion lever 48, and by a control circuit (not shown). Then, the above-mentioned plunger 32 is turned off (at this time, the turntable 29 is in the second position).

When installing the LP record 1L, as shown in Fig. 10c, the EP adapter 38 contacts the record 1L and sinks into the turntable against the spring 38a, and the turntable shaft 30 is fitted into the record center hole 1La. The other operations are the same as those for the EP record 1E described above.

When the installation operation is completed as described above, the motor 3
6 stops, the flywheel 35 also stops, and the player enters a standby state. Further, the rotation means of the turntable shaft 30, turntable 29, record 1, crimping plate 43, etc. are only in contact with the bearing 28 of the turntable shaft 30 and the crimping leaf spring 45, Mouth guide roller 21, center guide wheel 50, record holder 18, support arm 10,
There is no interference with the crimping plate support 42, etc.

Next, the record size switching mechanism and pickup mechanism will be explained with reference to FIGS. 12 to 16.

As mentioned above, this player is equipped with a pick-up device on each of the front and rear sides so that the front and rear sides of a supported record can be played back without having to reinstall the record.
Stop switching, fast forwarding of the pick-up arm,
The plungers 56F, 56R, motor 59, motor 3 are controlled by the operation button 4 and a control circuit (not shown).
6 is configured to be operated as appropriate.

First, when regenerating the front surface, a control circuit (not shown) operates the flywheel 3 by the motor 36.
5. The turntable 29 rotates clockwise in FIG. 3 at a rotational speed set by a record size switching mechanism, which will be described later, to drive the record 1. Then, in the state shown in Fig. 12, the plunger 56F is energized by a control circuit (not shown), and the ON operation of this 56F causes the link 55F to rotate clockwise in the drawing against the bias of the spring 55Fb. do. Further, the actuating plate 54F, which engages the bent portion 54Fa with the engaging portion 55Fa of the link 55F, rotates counterclockwise in the figure. Therefore, due to the bias of spring 55Fb,
The sliding wheel 53 is connected to the actuating plate 54F via the link 55F.
Fa was pressed, and the pick-up arm 53 was rotating against its own weight in a clockwise direction in the figure around the guide rail 51F, that is, so as to separate the playback needle 57Fa from the record 1.
F rotates clockwise in the figure due to its own weight, and the regenerating needle 57Fa is rotated by an appropriately set needle pressure.
is placed on the sound groove of the record 1 which is rotating at an appropriately set rotation speed. (The state shown in Fig. 12) Then, the guide rail 51F is moved to the center of the record 1 by the moving force due to its own weight generated by the inclination of the guide rail 51F toward the center of the turntable 29, and the inward force caused by tracing the sound groove of the record 1. While moving to , trace the front of record 1.

With the above operation, the front cartridge 57F
The front side of the record 1 is played back through a playback circuit (not shown) electrically connected to.

To reproduce the rear side of the record 1, a control circuit (not shown) rotates the motor 36 in the counterclockwise direction in FIG. This is done by energizing the plunger 56R shown in the figure. By this energization, the same operation as that of the front-side playback pickup described above results in the playback state shown in FIG.
The rear side of record 1 is played back. FIG. 14 shows a perspective view of the pickup device in a reproducing state.

When fast-forwarding these pickups, turn off the power to the plunger 56 that is in the reproducing state so that it is in the stopped state shown in FIG. 12a, and then move the motor 59 of the fast-forwarding device shown in FIG. 15 in the appropriate direction. All you have to do is drive it. Below, the front and rear surfaces will be explained.

When the plunger 56 is de-energized in the regeneration state shown in FIG. 12b or FIG. 13, the link 55 and the actuating plate 54 are rotated to the stopped state shown in FIG. 12a due to the bias of the spring 55B. , the pick-up arm 53 has its sliding wheel 53
Since a is pressed by the actuating plate, it rotates around the guide rail 51, and its driven portion 53b is pressed against the rubber belt 61. This state is the same as the stopped state. A control circuit (not shown) controls the first
A motor 59 shown in FIG. 5 rotates in a direction determined by the operation button 4 as appropriate. Therefore, the rotation of the motor 59 rotates the rubber belt 61 in an appropriate direction via the gear 59b, the gear 60a, and the pulley 60L. Therefore, the pick-up arm 5 whose driven portion 53b is in pressure contact with the rubber belt 61
3 is driven in an appropriate direction on the guide rail by its frictional force, regardless of its own weight. The fast-forward movement of the pick-up arm is regulated in the direction toward the center of the turntable by a not-shown Aggle so that the playback needle 57a stops at the innermost position of the record sound groove, and in the other direction, as will be described later. It is regulated by the record size switching mechanism.

Next, the record size switching mechanism will be explained with reference to FIG.

Figure 16 shows the state switched for LP records. A changeover switch means (not shown) inserted into a control circuit (not shown) is connected to the changeover lever 63 in order to control the rotational speed of the turntable drive motor 36, the rotational position of the record support arm 10, etc. In the LP state shown in the figure, the guide shaft 63a of the switching lever 63 and the guide shaft 66b of the sliding plate 66 operate when inserting the record as described above.
The intervals are set to guide (position) the outer circumference of the LP record. In addition, the switching lever 6
3 bent portion 63b and sliding plate 66 bent portion 66c
As shown in the figure, these can come into contact with the side surface of the driven portion 53Fb of the front pickup 53F and the side surface of the driven portion 53Rb of the rear pickup 53R, respectively, and the movement of these pickups 53 is controlled by the regeneration needle. 57a is regulated at a position where it is placed on the outermost circumference of the LP record 1L sound groove.

Next, a case will be described in which the switching knob 5 is operated in the direction of arrow E to switch the mechanism to one for EP records. When the switching knob 5 is operated in the direction of arrow E, the switching lever 63 slides in the same direction, and the spring 64
is held in the EP position by Further link 6
5 rotates, and the sliding plate 65 slides in the direction of arrow E'. This allows the guide shafts 63a, 66b to
Leave enough space to guide the outer circumference of the record when inserting it. Furthermore, by sliding the lever 63 to the EP position, the aforementioned changeover switch means is switched to the EP position. Furthermore, the bent portions 63b and 66c are
The regeneration needle 57a controls the movement of the pick-up 53.
It is positioned so as to be restricted to a position where it is placed on the outer periphery of the sound groove of the EP record 1E.

The above is the operation of the record size switching mechanism.

Next, the record loading/unloading operation will be explained.

When loading/unloading the record 1, in the state shown in FIGS. 10b and 10c, a control circuit (not shown) is actuated by the record loading/unloading button of the operation buttons 4, and the motor 36 is rotated counterclockwise in FIG. The plunger 32 and the plunger 15 shown in FIG.
is energized and the plunger 32 is energized,
As in the case of mounting, the rubber roller 25 comes into pressure contact with the flywheel inner surface 35a, thereby rotationally driving the shaft 24. The rotation of this shaft 24 is opposite to that when installed.
The turntable longitudinal drive mechanism, which is in the C' direction and thus in the state shown in FIG. 9b, moves to the state shown in FIG. 9a by the screw action of the nut 26 and threaded portion 24a. Therefore, the turntable shaft 30, the turntable 29, etc. are moved back from the state shown in FIGS. 10b and 10c to the state shown in FIG. Surface 44a and tapered surface 4 of support base 42
2c, and the center guide plate 49 is similarly biased by the crimp plate spring 45 to take the same forward tilted rotational position as in the non-crimped state, and the guide wheel is moved to the record position. 1. On the other hand, the record 1 cuts off the engagement between the center hole 1a and the turntable shaft 30 or the EP adapter 38, and the engagement between the crimping surface 41 of the turntable 29 and the crimping surface 47 of the crimping plate 43,
Since it is in a free state, it falls slightly due to its own weight and is placed on the placement portions 18b of the left and right record receivers 18 shown in Figure 7b. As described above, when the record 1 is disconnected from the turntable 29 and the crimping plate, the retracted position of the turntable is detected by a detection mechanism (not shown), the plunger 32 is turned OFF, and the retracting operation of the turntable 29 is completed. The device is in the state shown in Figures 9a and 10a.

When the backward movement of the turntable is completed, the plunger 15 shown in FIG. 4 is turned off by a control circuit (not shown). This plunger 15
OFF, the rubber roller 13a comes into pressure contact with the back surface 35b of the flywheel 35 due to the bias of the spring 14b, and the shaft 13 is rotationally driven. This rotation of the shaft 13 is in the opposite direction to that when the record is lowered, and therefore, the record lifting mechanism in the state shown in FIG. In order to insert the record 1 supported above, the support arm 10 is moved to the fifth position.
Operate as shown in figure a.

When the support arm 10 rotates upward, the record 1 placed on the record holder 18 is moved to the seventh position.
The record tray 18 is moved from the second mounting portion 18b of the record tray 18 in the lowered position shown in FIG. 7A to the moving slope 18c of the record tray 18 in the raised position shown in FIG. This stopper record 1 moves by its own weight on the moving slope 18c to a position continuous with the first mounting section 18a as shown by arrow A, and when the next record is mounted, the record is placed on the first mounting section 18a. It moves on the placement part 18a and takes a preparation state for center positioning.

On the other hand, in the operation of the record lifting mechanism, the rotary plate 9
The counterclockwise rotation of L in FIG. 5b causes the slide plate 19 to slide downward in the same figure.

For this reason, when the record is loaded, the arm 20 that moves the guide roller 21F forward so as not to interfere with the rotation of the record is replaced by the engaging portion 20 of the arm 20.
b is engaged with and pressed by the bent portion 19d of the slide plate 19, so that it rotates against the spring 20d from the state shown in FIG. 6b to the state shown in FIG. 6a, and the guide Roller 21F, 21
A gap t ₁ equivalent to the thickness of the record is formed between R.

When the record lifting mechanism and the insertion slot guide mechanism operate as described above, the plunger 15 is turned on by the support arm rotation position detection means (not shown).
At the same time, motor 36 stops. Note that the motor 36
stops, and when the firewheel 35 stops, the power to the plunger 15 is turned off, and the rubber roller 1
3a comes into pressure contact with the flywheel rear surface 35b again by the bias of the spring 14b, and the record is ready for mounting the next record.

With the above operations, records 1L and E become the second
It rises from the state shown by the two-dot chain line shown in the figure, and assumes the state shown by the one-dot chain line. From this state, the record can be replaced or loaded again by the above-described operation.

The present invention is configured such that when the turntable is retracted, the record receiving member can transport the record between the unloading position and the loading position with the record placed thereon. By simply placing a record on the placing section of the record receiving member at the carry-out position, the record can be safely transferred between the carry-out and carry-in positions, allowing the user to directly place the record into the device. There is no need to insert the record into the playing position or place it on the turntable, and damage to the record or damage to the device due to these operations can be prevented.

Furthermore, since the pressure bonding member contacts the record mounted on the turntable and presses the record to the turntable during performance, the record can be held securely during the performance.

Further, when the record is supported by the record receiving member and transferred to the loading position, the turntable moves from the first position to the record mounting position (second position), so that the record is transferred from the record receiving member to the loading position. and take the second
Since the configuration allows the record to be played on the turntable in the position, it is possible to safely transport the record and to start playing the record in a short time after the record receiving member starts loading the record. This has the effect that it can be done.

[Brief explanation of drawings]

The drawings show an apparatus according to an embodiment of the present invention, in which Fig. 1 is an external view thereof, Fig. 2 is a front view of the record insertion and insertion position, and Fig. 3 is a drive of the record lifting mechanism. FIG. 4 is a perspective view of the mechanism; FIG. 4 is a perspective view showing the drive mechanism of the record lifting mechanism; FIG.
6 is a side view of each mechanism shown in FIG. 5. FIG. 7 is a perspective view showing the operation of the record holder related to the above mechanism. Figure 8 is a perspective view showing the turntable longitudinal drive mechanism related to the above mechanism, and Figure 9 is the
10 is a sectional view showing the operation of the record crimping mechanism, and FIG.
FIG. 12 is a side view of the pick-up mechanism for front regeneration, FIG. 13 is a side view of the pick-up mechanism for rear regeneration, FIG. 14 is a perspective view of essential parts of the pick-up mechanism, and FIG. 15 is an exploded perspective view of the mechanism shown in the figure. FIG. 16 is a perspective view of a main part of a pickup fast-forwarding device, and FIG. 16 is a perspective view of a record size switching mechanism. 1L, 1E...Record, 10L, 10R...
Support arm, 13a...transmission member, 29...turntable, 36...motor.

Claims (1)

[Claims] 1. A first position separated from a disc-shaped record placed on a record receiving member and carried into a loading position in the player; It is capable of receiving the record placed on the record receiving member from the record receiving member and taking a second position in which the record can be mounted and played while being detached from the record receiving member. , a turntable that is mutually movable between the first and second positions, and a record placing section, and when the record is placed on the placing section, the record is placed on the record placing section. The turntable is movable between a carry-in position where a record is carried into the player and a carry-out position where the record is taken out from the player, and the moving operation is performed when the turntable is in the first position. The record receiving member is always biased in the direction of the turntable by a biasing means, and the turntable is
a crimping member that contacts a record on the turntable and presses the record to the turntable by moving from a position to a second position, and the record receiving member carries in the record. By moving the turntable from the first position to the second position in a state where the turntable is carried into the position,
A record mounting device for a record player, characterized in that the record disc is pressed and held on the turntable by the pressure bonding member, and the record disc is played at the second position of the turntable.