JPS6232326Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to the safety mechanism of record players.
To make it possible to open a cover for replacing a pick-up only when the pick-up is at a rest position, and to transport a pick-up scanning platform to a play position only when the cover is closed.

A pickup that is applied to records that record high-frequency signals such as television signals faces the opening of the cabinet when placed in the rest position, and the lid that covers the opening is opened. It is configured so that it can be replaced. On the other hand, the pick-up is supported by the pick-up scanning table and is configured to be able to be moved between the rest position and the play position. The lid can be opened even when the player is not in the rest position, exposing the inside of the player through the opening in the cabinet, and this also causes the pick-up scanning table, which is in the rest position, to be moved when the lid is opened. It can also happen in some cases.

This invention aims to provide a safety mechanism that allows the pick-up scanning platform to protect the inside of the player even when the lid is opened.The lid can only be opened when the pickup scanning platform is placed in the proper position (rest position). It is intended that the lid cannot be closed, and that the pick-up scanning table can be moved only when the lid is closed.

Next, the present invention will be explained based on illustrated embodiments. FIG. 1 shows a plan view of the record player, and FIGS. 2A and 2B show partially enlarged sectional views of the player in different operating states. In the figure, 1 is a cabinet, 2 is a lid, 3 is a pick-up, 4 is a pick-up scanning platform, 5 is a power source for transporting the scanning platform 4 between the rest position and the play position, 6 is a power source, and 7 is a The switch 8 is a lid locking means.

The cabinet 1 is provided with an opening 9 into which a finger can be inserted in order to replace the pick-up 3 located at the rest position, and a switch 7 and a lid locking means 8 are disposed adjacent to this opening. There is. The lid 2 is provided with a key hole 10 on one side for allowing the lid locking means 8 to be locked, and a pawl 11 for controlling the switch 7 on the other side.
This claw 11 is a protrusion 12 formed on the cabinet 1.
The switch 7 is configured to be able to be inserted into the through hole 13 of the switch 7 to control the switch 7. The pick-up scanning platform 4 removably supports the pick-up 3, and allows the pick-up 3 to be moved from the rest position to the play position or vice versa by means of a power source 5. The lid locking means 8 includes a key 15 guided by a post 14 provided on the cabinet 1, an angle 16 attached to the key and formed so that its free end can abut against the pick-up scanning table 4, and the post 14. A spring 17 is provided tensioned between the angles 16, and when the pick-up scanning table 4 is in the rest position, the spring 17 is compressed to retract the key 15, while when the pick-up scanning table 4 is in the play position, a spring 17 is provided on the key 15. The key 15 is advanced to a position where it is regulated by a stopper 18. In the figure, 19 is a motor that drives the turntable 20, and 21 is a record disposed on the turntable 20.

When the pick-up scanning table 4 is disposed at the rest position as shown in FIG.
Since the key 15 is retracted, the key 15 is removed from the key hole 10 of the lid 2, and the lid 2 can be freely removed from the cabinet 1. Therefore, when the lid body 2 is removed from the cabinet 1, the operation of the switch 7 by the claw 11 is released, and the application of the power source 6 to the power source 5 is cut off, thereby preventing the pick-up scanning table 4 from being transferred to the play position. limited. However, this restriction
By closing the lid on the cabinet 1, the claw 11
is removed because it activates switch 7.
With this lid closed, when the pick-up scanning table 4 is moved to the play position as shown in FIG. Then, the key hole 10 is penetrated. As a result, opening of the lid body 2 is prohibited. When the pick-up scanning table 4 is returned to the rest position, the angle 16 and key 15 are moved back to allow the lid 2 to be opened.

In this way, the present invention allows the lid for changing the pick-up to be opened only when the pick-up is in a predetermined position, and also allows the pick-up scanning platform to be moved from the rest position unless the lid is closed. Since the opening of the cabinet is backed up by at least a pick-up scanning table, it is practical to prevent foreign matter from entering the player and to ensure safety.

[Brief explanation of the drawing]

Figure 1 is a plan view of the record player of the present invention.
FIGS. 1A and 1B are enlarged partial cross-sectional views taken along line A-A' of this player in different operating states. Explanation of main drawing numbers, 3... Pick up, 4...
Scanning table, 5... Scanning table power source, 6... Power supply, 1...
...cabinet, 9...opening, 2...lid, 8
...Lid locking means.

Claims (1)

[Scope of utility model registration request] a scanning platform that removably supports the pickup and is capable of scanning the pickup between the rest and play positions; a power source that drives the scanning platform to transport the pickup between the rest and play positions; a power source connected to a power source via a switch; a lid for opening and closing an opening provided in the cabinet so that the pick-up located at the rest position can be replaced; a lid locking means controlled by the pick-up scanning platform to permit opening of the lid and prohibit opening of the lid when the pick-up is in the play position; A safety mechanism for a record player, comprising means for disposing the switch near the opening so as to control the switch on and off in conjunction with the switch.