JPS6346953Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field The present invention relates to a record player.

(b) Prior Art Conventionally, a record player has a main body made up of an upper cabinet and a bottom plate, a tone arm device, a tone arm drive mechanism, etc. attached to the upper cabinet, and a motor for driving a turntable attached to the bottom plate. It was common to install a motor drive circuit, etc.

However, with such conventional devices, it is necessary to turn over the top cabinet and bottom plate during assembly, and it also takes a lot of man-hours, which causes problems in productivity, workability, and serviceability.

(c) Purpose of the Invention The purpose of this invention is to propose a record player that solves the above problems.

(d) Structure of the invention The invention consists of a player cabinet in which a recess is formed, a mechanism chassis to which at least a tone arm device is attached, and a turntable,
Electrical components constituting a turntable drive circuit and the like are disposed in the recess, and the recess is closed by a mechanism chassis and a turntable.

(E) Embodiment FIGS. 1 to 3 are diagrams showing an embodiment of the present invention.

In the figure, 1 is a player cabinet integrally molded from synthetic resin, 2 is a recess formed in the player cabinet 1, and electrical parts such as transformers that constitute the drive circuit of the turntable drive motor, etc. 3 will be deployed. 4, 4, 4 is recess 2
A first protrusion implanted in the first protrusion has a screw hole into which the screws 5, 5, 5 are screwed, and the spring 6,
6,6 is wrapped. 7, 7, 7 are second protrusions similarly planted in the recess 2, and screw holes 7a, 7
a, 7a. 8 is a gutter-like groove formed on the circumference of the recess 2; 9 is a gutter-like groove formed on the mechanism chassis 9; the gutter-like groove 8 is continuous with the gutter-like groove 8 formed on the circumference of the recess 2; . Reference numeral 13 denotes a turntable mounted on a rotating shaft (spindle) 10a of a turntable drive motor 10, and a hanging portion 13a slides within gutter-like grooves 8 and 12. 14
is a rib installed in player cabinet 1,
These are the legs of the player cabinet 1. 15 is an insulator attached to the rib 14, and 16 is a retaining ring.

To assemble a record player having such a configuration, first, an electric component 3 such as a transformer constituting the drive circuit, control circuit, etc. of the motor 10 is attached to the recess 2 of the player cabinet 1 in which the insulator 15 is attached to the rib 14.

After that, the screws 5, 5, 5 are inserted into the first protrusion 4, through the through holes 9a, 9a, 9a of the mechanism chassis 9.
The mechanism chassis 9 is attached to the player cabinet 1 by screwing into the screw holes 4, 4. At this time, the tone arm device 11 mounting portion 9b of the mechanism chassis 9 is placed on the gutter-like groove 8, and the recess 2 formed in the player cabinet 1
occlude part of the

In this state, the turntable 13 is connected to the motor 10.
The assembly of the record player is completed by attaching it to the rotating shaft 10a of the record player. At this time, the hanging portion 13a of the turntable 13 is located within the trough-like grooves 8, 12, and when the turntable rotates, the trough-like grooves 8, 1
Slide inside 2.

By the way, in such a record player, when the assembly is completed, the hanging portion 13a of the turntable 13 is located in the gutter-like grooves 8, 12, and the tone arm device mounting portion 9b of the mechanism chassis 9 is placed on the gutter-like groove 8. Since the recess 2 of the player cabinet 1
is closed by the turntable 13 and mechanism chassis 9.

Therefore, there is no possibility that foreign matter will enter the recess 2 of the player cabinet 1 and cause an electric shock accident.

In addition, in such a record player, the vibrations generated by the motor 10 are absorbed by the springs 6, 6, 6 disposed between the recess 2 of the player cabinet 1 and the mechanism chassis 9, and the vibrations generated by the motor 10 are absorbed by the turntable 13. The vibration of the motor 10 is not transmitted to the tone arm device 11 because it is damped by the gutter-like groove 12 of the mechanism chassis 9 on which the hanging portion 13a slides.

Also, when transporting such a record player,
As shown in FIG. 3, the through hole 13 of the turntable 13
The turntable 13 is fixed to the player cabinet 1 by screwing the screws 17 into the second protrusions 7, 7, 7 through the screws 17, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, and 7, respectively.

At this time, the tapered portion 10b of the rotating shaft 10a of the motor 10 is pressed by the tapered portion 13c of the turntable 13 as the screw 16 is screwed, so that the motor 10 moves downward in FIG. Therefore, in such a fixed state, the turntable 13
3 is biased upward in FIG. 3 by the spring 6, so that it is crimped onto the head 17a of the screw 17 and is securely fixed.

In the embodiments, a direct drive type has been described, but it goes without saying that a belt drive type or a rim drive type can also be applied.

(f) Effects of the invention According to the invention, the player cabinet includes a recessed portion, a mechanism chassis to which at least a tone arm device is attached, and a turntable, and the turntable drive circuit, etc. is provided in the recessed portion. Since the electrical parts constituting the recess are arranged and the recess is closed with a mechanism chassis and a turntable, the assembly direction is unidirectional, which improves productivity, workability, and serviceability. It is possible to reliably prevent electric shock accidents from occurring due to foreign objects entering the device.

Further, a groove is formed at the periphery of the player cabinet and at a position opposite to the hanging part of the turntable,
By allowing the hanging portion of the turntable to slide through this groove, electric shock accidents can be more reliably prevented.

[Brief explanation of the drawing]

The drawings all show an embodiment of the present invention; FIG. 1 is a sectional view in a used state, FIG. 2 is an exploded perspective view, and FIG. 3 is a sectional view in a fixed state of the turntable. 1...Player cabinet, 2...Recess, 9
... Mechanism chassis, 11 ... Tone arm device, 13 ... Turntable.

Claims (1)

[Scope of claims for utility model registration] (1) A player cabinet in which a recess is formed;
It consists of a mechanism chassis to which at least a tone arm device is attached, and a turntable, and electrical components constituting a turntable drive circuit etc. are provided in the recess, and the recess is closed by the mechanism chassis and the turntable. A record player characterized by: (2) The record player according to claim (1) of the utility model registration, wherein a groove is formed on the periphery of the player cabinet at a position opposite to the hanging portion of the turntable.