JPH0626048U - Compact disc player loading module up / down device - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a loading module up / down device for a compact disc player, which can reduce the frictional force of the loading to the minimum when the loading module 3 is moved up / down. To do. [Structure] A plurality of guide holes 7 perforated in the pickup module 1, an inclined guide plate 6 formed on one side of the guide holes 7, and the guide holes 7 and the inclined guide plate 6.
And a guide means 20 installed at a predetermined position on the lower side of the loading plate 4 corresponding to the above, constitute a loading module up / down device for a compact disc player.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a loading module up / down device for a compact disc player. Specifically, when the loading module is up / down, the frictional force of the loading is reduced to a minimum so that the loading can be performed smoothly. The present invention relates to a loading module up / down device for the compact disc player.

[0002]

[Prior art]

 Conventionally, in a loading module up / down device for a compact disc player, as shown in FIGS. 3 to 7, a turntable 2 is installed on the upper surface of the pickup module 1 and loaded on the upper surface of the turntable 2. The module 3 is installed, and the loading plate 4 is adhered to the lower surface of the loading module 3, and the loading plate 4 reciprocates and moves up and down by a power transmission mechanism described later. It was supposed to be moved back and forth and moved up and down. Moreover, the loading module 3 is elastically supported downward on the upper surface of the pickup module 1 by a plurality of tension springs 5 and 5 '. Further, three guide holes 7 (A1, A2 and A3 in FIG. 3) are formed at predetermined portions of the pickup module 1, and one of the inner holes 7 is inclined downward by a predetermined angle. The guide plates 6 were formed integrally with the pick-up module 1 by bending. Further, slide guides 9 each having a guide surface 8 are screwed to the loading plate 4 by fixing screws 10 on the lower surface of the loading plate 4 corresponding to the guide hole 7 and the inclined guide plate 6. . In the power transmission mechanism, the motor 11, the worm 12 pivotally supported by the motor 11, the worm gear 13 engaged with the worm 12, and the connecting gears for transmitting the driving force of the worm gear 13 to the cam gear 16 14, 15, a cam groove 18 formed on the lower surface of the cam 19 of the cam gear 16, and a cam pin 17 fixed to a predetermined portion of the loading plate 4 so as to be engaged with the cam groove 18. Was there. In the operation of the loading module up / down device of the conventional compact disc player having the above-mentioned structure, when the compact disc player is loaded, when the power is applied to the motor 11, the motor 11 is driven. The driving force is sequentially transmitted to the worm 12, the worm gear 13, the connecting gears 14 and 15 and the cam gear 16, and the cam gear 16 is rotated in the A direction shown in FIG. Then, the loading module 3 and the loading plate 4 overcome the elastic force of the tension springs 5 and 5 ′ by the cam pin 17 engaged with the cam groove 18 of the cam gear 16 in the direction B shown in FIG. The slide guide 9 of the loading plate 4 is moved and inserted into the guide hole 7 of the pick-up module 1, so that the disc is placed on the turntable 2.

[0003]

[Problems to be solved by the device]

 However, in the loading module up / down device of the conventional compact disc player having such a structure, when the loading module 3 is up / down, the guide surface 8 of the slide guide 9 and the inclined guide plate of the pickup module 1 are arranged. 6 and 6 are in contact with each other, but frictional contact at the time of contact is quite intense, so the loading module 3 does not move up and down smoothly, and the excessive load on the loading motor shortens the life of the motor. There was a disadvantage.

In order to solve such a problem, the inventors of the present invention have conducted extensive research, and as a result, intend to provide the following loading module up / down device for a compact disc player.

[0005]

[Means for Solving the Problems]

 It is an object of the present invention to provide a loading module up / down device for a compact disc player, which minimizes frictional force when the loading module is moved up / down and can perform smooth up / down operation constantly. To do.

The object of the present invention is to provide a plurality of guide holes formed in the pickup module, and an inclined guide plate formed on one side of the guide holes with a downward inclination of a predetermined angle. By configuring the loading module up / down device of the compact disc player by the guide means installed respectively with the guide rollers at the predetermined portions on the lower side of the loading plate corresponding to the guide holes and the inclined guide plates. To be achieved.

[0007]

[Action]

 When the loading module is moved up / down, the guide roller of the guide means of the loading plate is rolled on the tilt guide plate of the pickup module to be moved up / down in the guide hole. Therefore, the frictional force generated when the loading module is moved up / down is extremely reduced.

[0008]

【Example】

 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. As shown in FIGS. 1 (A), 1 (B) and 1 (C), in the loading module up / down device of the compact disc player according to the present invention, the turntable 2 is installed on the upper surface of the pickup module 1. A loading module 3 is elastically supported downward on the upper surface of the turntable 2 by a plurality of tension springs 5 and 5'on the upper surface of the pickup module 1, and a loading plate 4 is mounted on the lower surface of the loading module 3. Are adhered to each other, and the loading plate 4 reciprocates and ascends and descends by a power transmission mechanism so that the loading module 3 can also move back and forth and ascend and descend together. In addition, the power transmission mechanism is engaged with the cam groove 18 of the motor 11, the worm 12, the worm gear 13, the cam gear 16, the connecting gears 14 and 15, the cam 19 of the cam gear 16 and the cam groove, as in the conventional case. The cam pin 17 is fixed to the ding plate 4. Further, a plurality of guide holes 7 are formed in predetermined portions of the pickup module 1 respectively, and an inclined guide plate 6 inclined downward by a predetermined angle to one side of each of the guide holes 7 is provided in the pickup module 1 respectively. It is bent and formed integrally with. Further, a plurality of guide means 20 are installed on the lower surface of the loading plate 4 corresponding to the guide holes 7 and the tilt guide plate 6, and the guide means 20 are loaded on the tilt guide plate to load the loading module. 3 up / down operation is performed. The guide means 20 includes a support plate 22 fixed to each part of the loading plate 4 corresponding to each guide hole 7 of the pickup module 1, and a shaft fixed to a predetermined part of the support plate 22. It comprises a pin 23 and a guide roller 21 which is rotatably supported by the shaft pin 23 and is rolled by the inclined guide plate 6 of the pickup module 1. Here, the support plate 22 may be used by bending the loading plate 4 vertically, or by using separate support plates fixed to the loading plate 4, respectively. In addition, hooking steps 23a are formed at the other end of the shaft pin 23 to prevent the guide roller 21 from coming off. In the figure, the same reference numerals are used to describe the same parts as the conventional ones.

The operation of the loading module up / down device of the compact disc player according to the present invention constructed as above will be described as follows. First, when power is supplied to the loading motor 11, the loading motor 11 is driven and the driving force is sequentially transmitted to the worm 12 → worm gear 13 → coupling gears 14 and 15 → cam gear 16 of the power transmission mechanism. It Then, the cam pin 17 engaged with the cam groove 18 of the cam 19 is swung by the rotation of the cam gear 16, and the loading module 3 and the loading plate 4 are reciprocally moved by the cam pin 17 so that the tension spring 5 After the elastic force of 5'is overcome to move, the guide means 20 of the loading plate 4 is rolled on the inclined guide plate 6 of the pickup module 1 and moved in and out of the guide hole 7 to perform the up / down loading. The action takes place. That is, in the present invention, the guide roller 21 of the guide means 20 of the loading plate 4 is rolled on the inclined guide plate 6 of the pickup module 1 so as to be moved up / down in the guide hole 7. The frictional force generated when the loading module is moved up / down is significantly reduced compared to the conventional case.

On the other hand, as another embodiment of the present invention, as shown in FIG. 2, two support plates 22 and 22 ′ are fixed to both sides of the guide means 20, and both support plates 22 and 22 ′ are fixed. It is also possible to construct the guide means 20 by penetrating the shaft pin 23 between 22 'and pivotally supporting the guide roller 21 on the shaft pin 23. That is, in the guide means 20 of such another embodiment, since the guide roller 21 is pivotally supported by the shaft pin 23 penetrating the both side support plates 22 and 22 ', the loading module is moved up / down. At that time, the force balance is better maintained and the frictional force is further reduced.

[0011]

[Effect of device]

 As described above, in the loading module up / down device of the compact disc player according to the present invention, when the loading module is up / down, the guide roller of the loading plate is rolled on the inclined guide plate of the pickup module. However, since the up / down movement is performed, the frictional force generated during the up / down movement can be extremely reduced as compared with the conventional case, and the up / down movement can be smoothly performed.

[Brief description of drawings]

FIG. 1 is a loading module up / up according to the present invention.
1 (A) is a front view showing the guide means, FIG. 1 (B) is a partial side view showing a state in which the device is loaded up, and FIG. 8] is a partial side view showing a state where the apparatus is loaded down.

FIG. 2 is a front view showing another embodiment of the guide means according to the present invention.

FIG. 3 is a plan view showing a loading module up / down device of a conventional compact disc player.

FIG. 4 is a side view showing a loading up state of a conventional loading module up / down device.

FIG. 5 is a partial side view showing a loading down state of a conventional loading module up / down device.

FIG. 6 is a sectional view showing a state in which a conventional slide guide is screwed on a loading plate.

FIG. 7 is an explanatory view of the action of the guide surface and the inclined guide plate of the conventional slide guide.

[Explanation of symbols]

 1 ... Pickup module 2 ... Turntable 3 ... Loading module 4 ... Loading plate 5, 5 '... Tensile spring 6 ... Inclined guide plate 7 ... Guide hole 8 ... Guide surface 9 ... Slide guide 10 ... Fixing screw 11 ... Motor 12 ... Worm 13 ... Worm gear 14, 15 ... Connection gear 16 ... Cam gear 17 ... Cam pin 18 ... Cam groove 19 ... Cam 20 ... Guide means 21 ... Guide roller 22, 22 '... Support plate 23 ... Shaft pin 23a ... Latch stage

Claims (5)

[Scope of utility model registration request] 1. A pickup module (1), a loading module (3) installed on an upper surface of the pickup module (1), and a loading plate (4) adhered to a lower surface of the loading module (3). A power transmission mechanism for reciprocating and ascending / descending the loading plate (4), a plurality of guide holes (7) formed in a predetermined portion of the pickup module (1), and one side of the guide holes (7) A loading module up / down device for a compact disc player, comprising: an inclined guide plate (6) formed on the upper surface of the pickup module (1), the loading plate (4) corresponding to each guide hole (7) of the pickup module (1). A guide means (20) is installed at each predetermined portion of the loading module (3). / Time of down, the loading module up / down device for a compact disk player is configured such that they guide means in the inclined guide plates (6) (20) is loaded is rolling. 2. The guide means (20), a support plate (22) fixed to the lower surface of the loading plate (4) corresponding to the guide hole (7), and the support plate (22).
And a guide roller (21) that is rotatably supported by the shaft pin (23) and is rolled by the inclined guide plate (6). Item 1. A loading module up / down device for a compact disc player according to item 1. 3. The loading module up for a compact disc player according to claim 2, wherein the support plate (22) is formed by vertically bending the loading plate (4) at a predetermined portion of the loading plate (4). / Down device. 4. The shaft pin (23) has a hooking step (23a) formed at the other end of the shaft pin (23) to prevent the guide roller (21) from coming off. 2. A loading module up / down device for the compact disc player described in 2. 5. The pair of support plates (20) fixed to the lower predetermined portions of the loading plate (4) corresponding to the guide holes (7) of the pickup module (1), respectively. 22) (22 '),
Each shaft pin (23) penetratingly provided between the support plates (22) and (22 '), and rotatably supported by the shaft pins (23) and rolled by the inclined guide plate (6), respectively. 2. The loading module up / down device for a compact disc player according to claim 1, wherein the loading module up / down device comprises each guide roller (21).