JPS6224384Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a front door opening/closing device for a record player that supports a turntable so as to be movable in the front-back direction, and its features are as follows:
The front door is movably supported between a vertical position covering the front of the player cabinet and a horizontal position inside the player cabinet, and a slide base drive mechanism mounted on the slide base opens and closes the front door and slides the base. By selectively moving the front door and moving the slide base, the player is pulled into the cabinet when the front door is opened, so it does not interfere with player operation. The point is that the timing never comes.

Conventionally, in order to reduce the space required by a record player (especially the space above it), the turntable was supported so that it could move forward and backward relative to the player cabinet, and the front door was rotated upward when in use. It is known for having the turntable pulled out forward.

However, when using such a product,
The front door protruded above and in front of the turntable, making it difficult to change records or operate the tone arm.

Furthermore, since the turntable must be pulled out after the front door is completely opened, if the timing of the operation is not accurate, the turntable may hit the front door and cause a malfunction.

The purpose of this invention is to move the front door of such a record player to a position where it does not create a jam when opened, and also to accurately time the opening and closing of the front door and the movement of the slide base. That's true.

An embodiment of this invention will be described with reference to the drawings.

A turntable 1 and a slide base 2 on which a slide base drive mechanism is mounted are supported so as to be movable in the front and rear directions (left and right directions in the figure) with respect to the player cabinet.

A front door 4 is provided at a position covering the upper opening of the slide base 2, and two upper and lower guide pins 5 and 6 protrude from both sides of the front door 4, and guide grooves 7 provided on both side walls of the player cabinet 3. and is rotatably and slidably supported.

The guide groove 7 consists of a horizontal part and a part continuous in front of the horizontal part divided into upper and lower parts, and when the front door 4 is in the closed position (vertical position) shown in FIG.
The upper and lower guide pins 5 and 6 engage with a bifurcated portion of the guide groove 7.

A slide lever 8 is supported on one side wall of the player cabinet so as to be movable back and forth, and is always urged forward by a spring 9.

The upper guide pin of the front door engages with a long hole provided in the vertical direction at the front end of the slide lever 8, and
A pin 10 provided at its rear end abuts a pivot lever 11 pivotally mounted on the side wall of the player cabinet.

A rack gear 12 is supported so as to be movable back and forth along the bottom plate of the player cabinet, and as shown in FIG. 2, when the rack gear moves rearward, a pin 13 provided on its bent piece rotates. It contacts the lever 11 and rotates backward.

As shown in FIGS. 3 to 7, the rack gear 12 meshes with a drive gear 14 of a slide base drive mechanism placed on the slide base 2, and is driven in the front and rear directions with respect to the slide base 2. Ru.

It is swingably supported on the bottom plate of the player cabinet, and has two lock pins 15a and 15 at its tips.
The lock lever 15 having the lock gear 12
It is engaged with an L-shaped hole 16 provided in the.

The lock pins 15a of the lock lever alternately engage with the recesses 2a provided in the slide base 2, and the lock pins 15b engage with the recesses 16b provided in the L-shaped hole of the rack gear, respectively, so that the slide base 2 or the rack gear 12 is engaged with the player cabinet. Attach to the net.

The lock lever 1 is locked by the reset spring 17.
A reset lever 18 connected to the player cabinet 5 is swingably supported on the bottom plate of the player cabinet, and is appropriately rotated by a reset piece 19 of the slide base and a reset pin 20 of the rack gear.

Next, its operation will be explained.

In the stored state shown in FIGS. 1 and 3, the front door 4 is in a vertical position covering the front surface of the player cabinet, and the lock pin 15a of the lock lever is engaged with the recess 2a of the slide base. The slide base 2 is locked to the player cabinet.

Now, when you press the slide base loading out switch (not shown), drive gear 1
4 begins to rotate counterclockwise, moving the rack gear 12 rearward (to the right in the figure), and the pin 13, pivot lever 11, and pin 10 provided on the bent piece
The slide lever 8 is moved rearward via the .

Then, the upper end of the front door 4 first tilts backward and separates from the top plate, and then the entire front door rises while rotating backward along the guide groove 7, and the player cabinet shown in FIG. Move to an internal horizontal position.

Since the lock lever 15 is biased counterclockwise by the lock spring 17, when the lock gear 12 moves to the rearmost position, the lock pin 15b is pushed into the L-shaped recess 16b as shown in FIG.
The lock gear 12 is engaged with the player cabinet, and the lock pin 15a is disengaged from the recess 2a of the slide base 2.
is unlocked.

Since the drive gear 14 continues to rotate further, the slide base 2 moves forward this time, and the reset lever 18 is rotated counterclockwise by the reset piece 19, so that the record disc shown in FIGS. 2 and 5 is rotated. Move to the attachment/detachment position and stop.

In this state, the turntable 1 protrudes forward from the player cabinet, and
Since the front door 4 is retracted to a position where it does not get in the way inside the player cabinet, it is easy to change records and operate the tone arm.

When the slide base loading-in switch is pressed after the performance, the drive gear 14 begins to rotate clockwise, and when the slide base moves backward and reaches the storage position (the reset lever 18 has already been rotated counterclockwise). (Since the lock lever 15 is biased clockwise by the reset spring 17) as shown in FIG.
5a engages with the recess 2a, and the slide base 2 is locked to the player cabinet.

The drive gear 14 continues to rotate, the rack gear 12 moves forward, the slide lever 8 moves forward due to the biasing force of the spring 9, and the front door 4 moves to the vertical position shown in FIG.

The rack gear 12, as shown in FIG.
After the reset lever 18 is rotated clockwise by the reset pin 20, it stops and enters the retracted state.

As explained above, the record player front door opening/closing device of this invention supports the front door movably between the vertical position covering the front of the player cabinet and the horizontal position inside the player cabinet, By selectively opening and closing the front door and moving the slide base using the slide base drive mechanism mounted on the slide base, the player is pulled into the player cabinet when the front door is opened, making it easier to operate the player. Moreover, since the opening/closing operation of the front door and the movement of the slide base are selectively performed by a single drive mechanism, there is no risk of timing errors.

[Brief explanation of drawings]

Figures 1 and 2 are side views of the internal mechanism to show the operation of the front door, and Figures 3 to 7 are
FIG. 3 is a plan view of the internal mechanism for showing the operation of the slide base and rack gear. 2... Slide base, 4... Front door, 5 and 6... Guide pin, 7... Guide groove, 8... Slide lever, 11... Rotating lever, 12... Rack gear, 15... Lock lever, 15a and 1
5b...Lock pin, 16...L-shaped hole, 17...
Reset spring, 18...Reset lever.

Claims (1)

[Scope of Claim for Utility Model Registration] (a) A slide base on which a turntable and a slide base drive mechanism are mounted and supported so as to be movable in the front and rear directions with respect to the player cabinet; (b) A slide base drive (c) a rack gear that is driven by a mechanism and moves parallel to the slide base; (c) a guide groove provided almost horizontally on both side walls of the player cabinet and whose front end branches into two; (d) a guide groove on both the left and right sides. Each has two guide pins that engage with the guide grooves, and moves in conjunction with the movement of the rack gear between a vertical position covering the front surface of the player cabinet and a horizontal position inside the player cabinet. 1. A front door opening/closing device for a record player, characterized in that the front door is selectively opened and closed and the slide base is moved by a slide base drive mechanism.