JPS637967Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a record mounting device for a record player.

The applicant of the present invention proposed in the previous Utility Application No. 172505/1988 (Japanese Utility Model Application No. 157069/1989) that a record disc can be attached to and removed from a turntable using a record mounting plate linked to a record crimp member. This is because the record player's record mounting mechanism has been modified. In this case, the above-mentioned record board is configured so that it can be applied to so-called LP and EP records, but when we look at the actual situation regarding the size of record discs, it is extremely There are a small number of 25cm discs on the market, which are between the above two discs.

By the way, in order to make it possible to play 25cm discs with the record mounting mechanism according to the earlier application,
This can be done by providing a 25 cm record mounting surface concentrically with the record mounting surface for LP and EP discs, but with this configuration, the structure of the record mounting plate would be complicated. Moreover, it is predicted that the disadvantage is that it lacks practicality due to its large size.

This invention was devised in view of these problems, and by providing an adapter for attaching and detaching the medium-sized 25cm record to the record mounting surface of the existing large-diameter record. It is an object of the present invention to provide a record disc mounting device that can be applied to the medium-sized discs described above without complicating the structure and increasing the size of the mounting plate.

Hereinafter, one embodiment of the present invention will be explained according to the attached drawings.
Explain in detail.

FIG. 1 is a schematic perspective view showing a record player equipped with a record mounting device according to the present invention in a state in which the front cover of the record player is opened and the record can be attached and removed;
In the figure, 1 is the main body of a record player, 2 is a front cover that is pivotally supported by an arm 3 provided at the lower end of the lower edge of the main body 1, and a record disc is mounted on the inside of the main body 1 (not shown). A record pressing member is provided which is pressed onto the record pressing surface 4a of the turntable 4 on the main body 1 side and cooperates with the turntable 4 to rotate the record.

Reference numeral 5 denotes a record mounting plate (hereinafter referred to as the mounting plate) made of a plate material having a width large enough to close approximately the lower half of the front opening 1' of the main body 1; An interlocking mechanism (not shown) is rotatably suspended within the main body 1 by arms 6 protruding upward from the edge, and opens and closes the front cover 2. It is designed to rotate in conjunction with the reception of the rotation through the shaft.

As clearly shown in FIG. 2, the mounting plate 5 has a semicircular notch 7 at the center of the upper edge of the plate surface, which is concentric with the spindle 4b at the center of the turntable 4. The stepped shape forms two record mounting surfaces (hereinafter referred to as mounting surfaces) 8 and 9 which are also concentric with the spindle 4b and have different radii of curvature.

These mounting surfaces 8 and 9 are approximately parallel to the spindle 4b, and the former is for LP records and the latter is for EP records, and each is designed to be able to support each record so that it does not fall. It's on.

In particular, in the case of the mounting surface 8, two engaging protrusions 1
0 and 10, and the mounting surface 9 for EP records has an engaging protrusion 11 that can freely come out and retract from the mounting surface 9.
It is equipped with The mechanism for protruding and retracting the engaging protrusion 11 is not related to the gist of the present invention, so a detailed explanation will be omitted, but in short, the engaging protrusion 11 is placed just before the placing plate 5 reaches the position where the record is separated, which will be described later. It is configured to be immersed in the back side of the mounting surface 9 from the surface 9.

The mounting plate 5 formed in this way is attached to the front cover 2.
When the front cover 2 is opened, it assumes a position in front of the record crimping surface 4a of the turntable 4 (record mounting position), and when the front cover 2 is closed from this position, it moves in the direction of the turntable 4. It rotates, and finally reaches a position behind the record pressing surface 4a of the turntable 4 (record release position) while avoiding the turntable 4 using the notch 7, and just before reaching this record release position. LP or
The EP record is removed by the record pressing surface 4a and the mounting surface 8 or 9 is separated from the periphery of the record.

Reference numeral 12 designates an adapter for a 25cm record (intermediate size record), which is made of a roughly arc-shaped member, and has knobs 14, 14 on both end faces, as shown in FIGS. 3 and 4, and a center portion. An engaging protrusion 15 protruding from the record placement surface (hereinafter referred to as the placement surface) 13 and a pressing piece 1 protruding from the outer peripheral surface.
6, and further provided with a stop 17 extending from the mounting surface 13 parallel to the axis of the spindle 4b and a tongue-shaped elastic engagement piece 18 extending from the upper edge of the stop 17 at both ends. There is.

This adapter 12 is attached to and detached from the mounting surface 8 for the LP record, and when it is attached, both ends are received by the engagement protrusions 10, 10, and the abutment 17 and the elastic engagement piece 18 are engaged. The pressing piece 16 is attached to the mounting surface 8 by elastically contacting the inner wall surface 5a' of the recess 5a provided on the lower edge plate surface of the mounting plate 5. Also, when you want to escape, turn knob 1.
4 and 14 and pulling in the direction of arrow A in FIG.

Note that 18a is a recess provided in the center of the elastic engagement piece 18 to ensure engagement with the corner of the engagement protrusion 10.

Since the present invention is constructed as described above, when playing a large-diameter LP record or a small-diameter EP record, the front cover 2 is opened and the record is mounted on the mounting plate 5. It is best to close the front cover 2 after placing the LP or EP record on the placing surface 8 or 9 in this state.

By the closing operation of the front cover 2, the LP or EP record supported on the mounting surface of the mounting plate is inserted into the insertion hole (see Fig. (not shown) is inserted into the spindle 4b (or the holder 19 if it is an EP record) and is received by the record pressing surface 4a of the turntable 4, and when the mounting plate 5 reaches the record release position, the mounting plate (Including the mounting surface 8 or 9) 5 and remove the front cover 2 completely.
The record pressure bonding member provided on the inner surface of the record pressure bonding member is used to press the record pressure bonding surface 4a.

Therefore, from now on, the record disk rotates as the turntable 4 rotates.

After the performance is over, the record can be taken out by opening the front cover 2 and bringing the mounting plate 5 to the record mounting position.

Next, when playing a 25cm record, that is, an intermediate-sized record, set the mounting plate 5 to the record mounting position, attach the adapter 12 to the mounting surface 8, and keep it in this state. Place the intermediate size record on the mounting surface 13 of the adapter 12.
It is preferable to close the front cover 2 after placing it on top.

By the closing operation of this cover, the adapter 12
The medium-sized record supported above is placed on the mounting plate 5.
Immediately before reaching the record release position, the insert provided in the center is inserted into the spindle 4b and is received by the record pressing surface 4a of the turntable 4,
When the mounting plate 5 reaches the record release position, the mounting plate (the mounting surface 1 of the adapter 12
(including 3), and is pressed onto the record pressing surface 4a by the record pressing member provided on the inner surface of the front cover 2.

Therefore, from now on, the medium-sized record will rotate based on the rotation of the turntable 4.

As described above, the present invention is achieved by detachably providing an adapter having an arc-shaped record mounting surface with a smaller radius of curvature than the record mounting surface of the record mounting plate. , it is possible to selectively support records of different diameters by attaching and detaching the adapter, and there is no need to make any particular changes to the size and shape of the record mounting plate, and the structure of the record mounting plate can be changed. This is a practical idea that prevents complexity and size from becoming too large.

[Brief explanation of the drawing]

FIG. 1 is a schematic perspective view showing the open state of the front cover of a record player equipped with an embodiment of the record mounting device according to the present invention, FIG. 2 is a front view of the record mounting plate in the same device, and FIG. The figure is a sectional view taken along the line -' in FIG. 2, and FIG. 4 is an exploded perspective view for explaining the state in which the adapter is attached to the record plate mounting plate. 4: Turntable, 4a: Record pressure bonding surface,
5: Record placement plate, 8, 9: Record placement surface, 12: Adapter, 13: Record placement surface.

Claims (1)

[Scope of utility model registration request] A turntable with a record crimping surface, capable of reciprocating between a record mounting position in front of the record crimping surface and a record detaching position in the rear, and an arc-shaped plate concentric with the center of rotation of the turntable on the plate surface. A record placing surface is provided, and the record placed on the record placing surface at the record mounting position is received by the record pressing surface immediately before reaching the record removing position, and the record is placed at the record removing position. The above disc has a record mounting plate that is detachable from the disc, and an arcuate record mounting surface that is concentric with the center of rotation of the turntable and has a smaller radius of curvature than the record mounting surface of the record mounting plate. A record mounting device for a record player comprising an adapter that is detachably installed on the record mounting surface of a record mounting plate.