JP2603700Y2 - Floating lock mechanism - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a floating lock mechanism for supporting a recording / reproducing means of a recording medium with an elastic member for vibration isolation and locking the recording medium in a timely manner.

[0002]

2. Description of the Related Art In a recording / reproducing apparatus such as an in-vehicle CD player, when recording / reproducing a recording medium, if the vibration of a vehicle is transmitted to a recording / reproducing means, the recording / reproduction becomes unstable. For this reason, the on-vehicle recording / reproducing apparatus is provided with a floating portion supported by an elastic member and an anti-vibration damper on a chassis thereof, and recording / reproducing means is attached to the floating portion. With this configuration, the vibration transmitted from the vehicle to the chassis is absorbed by the elastic member and the vibration damper, and is less likely to be transmitted to the recording / reproducing means. However, with such a configuration, the position of the floating portion in the chassis is unstable, and when the recording medium is mounted on the recording / reproducing apparatus, the recording medium is hit with the recording / reproducing means, and the recording medium is damaged or cannot be mounted. There is fear. Conventionally, a recording / reproducing apparatus mounted on a vehicle is provided with a floating lock mechanism. By this mechanism, when a recording medium is inserted, several positions around the floating portion are held and positioned to prevent an accident that damages the recording medium. I have. When recording / reproducing the recording medium, the holding portion is released to prevent the vibration of the vehicle from being transmitted through the chassis.

An example of such a conventional floating lock device will be described below with reference to the drawings. That is, as shown in FIG. 5, the floating section 2 provided with the recording / reproducing means is supported inside the chassis 1 by an anti-vibration damper (not shown). As shown in FIG. 5, the floating portion 2 is provided with an engaging portion 2a.
A lock plate 4 is slidably provided on the chassis 1 near the engagement portion 2a, and is provided with a drive source (not shown).
It is connected to the.

The lock plate 4 is provided with a holding portion 4b in which a groove 4a is formed. When the lock plate 4 is slid by a driving source, the holding portion 4b moves, and the groove 4a of the holding portion 4b is moved. The floating portion 2 moves between a lock position where the floating portion 2 is engaged with the engaging portion 2a and a release position away from the floating portion 2. Therefore, when the recording medium is inserted, if the lock plate 4 is moved to the lock position, the recording / reproducing means provided on the floating portion 2 is held at a predetermined position, so that the recording medium can be securely mounted without being damaged. When the lock plate 4 is moved to the release position at the time of recording / reproducing on the recording medium, only the vibration damper supports the floating portion 2. Therefore, the vibration of the vehicle is absorbed by the vibration damper, and is less likely to be transmitted to the recording / reproducing means provided in the floating portion 2, so that stable recording / reproducing can be performed.

[0005]

However, the conventional example of the above-mentioned floating lock mechanism has the following problems. That is, the groove 4 a provided in the holding portion 4 b of the lock plate 4 is
Are engaged from one direction. Therefore, when the vibration is transmitted to the chassis, the engaging portion 2a is easily displaced from the side opposite to the engaging portion with the groove 4a, and the locking becomes unstable.

The present invention has been proposed in order to solve the above-mentioned problems of the prior art. The purpose of the present invention is to lock the floating portion from two opposite directions so that a secure lock can be achieved. Is to provide a floating lock mechanism.

[0007]

In order to achieve the above object, the present invention according to claim 1 comprises a recording / reproducing means for a recording medium, and a floating medium supported by an elastic member on a chassis of the recording / reproducing apparatus. Part, a concave engagement part provided in the floating part, a lock member movably provided in the chassis, and the concave member by movement of the lock member for locking and unlocking the floating part. A floating lock mechanism having a concave holding portion provided on the lock member so as to be engaged with and disengaged from the joint portion; a rotating member rotatably provided on the chassis; A cam mechanism provided on the turning member and the lock member so that the member turns, and the concave holding by the turning of the turning portion. A holding portion for supporting the concave engaging portion from a direction facing the portion is provided at one end of the rotating portion.

[0008]

The operation of the present invention having the above configuration is as follows. That is, by moving the lock member, the holding portion is engaged with the engaging portion of the floating portion.
At this time, the rotating member is rotated by the cam mechanism, and the pressing portion provided on the rotating member supports the concave engaging portion from the direction facing the concave holding portion, so that the lock of the floating portion is opposed. It is performed from two directions.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the floating lock mechanism according to the present invention as described above will be specifically described with reference to the drawings. The locking member according to the first aspect is a lock plate, the rotating member is a rotating plate, the pressing portion is a pressing plate, and the cam mechanism is configured by a cam pin and a cam groove. In addition, left in the plan view of FIG. 1 is left, right is right, upper is rear, and lower is front.

(1) Configuration of the Embodiment The configuration of the embodiment will be described below. That is, as shown in FIG. 1, a floating section 2 having a recording / reproducing means is supported by a vibration-proof damper 3 inside a chassis 1 of the recording / reproducing apparatus. An engaging portion 2a is provided on the left side surface of the floating portion 2 at the front and rear. A lock plate 4 is provided on the left side surface of the chassis 1 so as to be slidable back and forth by a drive source (not shown). The lock plate 4 has a holding portion 4b projecting rightward at a position corresponding to the engagement portion 2a of the floating portion 2.
Are provided before and after. A groove 4a is formed in a rear portion of the holding portion 4b, and the groove 4a engages with the engaging portion 2a as the lock plate 4 slides.

[0011] Behind the lock plate 4, a concave cam groove 4 c is provided. This cam groove 4c
, One end of the cam pin 5 is inserted, and the opposite end of the cam pin 5 is connected to the rotating plate 6. Rotating plate 6
Is a plate provided on the chassis 1 so as to be rotatable around the shaft 6a, and a pressing plate 6b corresponding to the engaging portion 2a of the floating portion 2 is provided at one end thereof. The holding plate 6b is provided with the engaging portion 2a in accordance with the rotation of the rotation plate 6.
Is configured to abut against the rear of the vehicle.

Further, a groove 2b is provided on the right side surface of the floating portion 2, as shown in FIG. A slide plate 7 is provided on the right side surface of the chassis 1 so as to be slidable back and forth by a drive source (not shown). The slide plate 7 is provided with a protrusion 7a protruding leftward, and the protrusion 7a is engaged with and disengaged from the groove 2b by the forward and backward movement of the slide plate 7.

(2) Operation of the Embodiment The operation of the embodiment having the above configuration is as follows. That is, when the recording medium is mounted, the lock plate 4 is slid backward by the driving source. Then, as shown in FIG. 3, the engaging portion 2a behind the floating portion 2 is engaged with the groove 4a of the holding portion 4b. At this time, the cam groove 4c provided behind the lock plate 4 also moves, and the cam pin 5 inserted into the cam groove 4c comes to the peak of the cam groove 4c. Therefore, since the cam pin 5 is pushed upward, the rotating plate 6 rotates, and the pressing plate 6a comes into contact with the rear of the rear engaging portion 2a. For this reason, the rear engaging portion 2a is supported so as to be sandwiched between the holding plate 6a and the holding portion 4b.

Further, the slide plate 7 is slid forward by the drive source. Then, the protrusion 7 a of the slide plate 7 engages with the groove 2 b of the floating part 2. As described above, the recording medium is mounted on the recording / reproducing means on the floating section 2 whose periphery is locked.

Next, when performing recording / reproduction on the recording medium, the lock plate 4 is slid forward and the slide plate 7 is slid rearward. Then, the engaging portion 2a of the floating portion 2 is released from the groove 4a of the holding portion 4b, and the groove 2b is released from the projecting portion 7a of the slide plate 7. At this time, as shown in FIG. 4, the cam pin 5 inserted into the cam groove 4c of the lock plate 4 comes to the rear end of the cam groove 4c.
Rotates, and the pressing plate 6a is retracted from the engaging portion 2a behind the floating portion 2. As described above, the floating portion 2 whose periphery is opened is supported only by the vibration damper 3. Therefore, the vibration of the vehicle is
And it is difficult to be transmitted to the recording / reproducing means provided in the floating section 2, so that stable recording / reproduction can be performed.

(3) Effects of the Embodiment The effects of the embodiment described above are as follows. That is, the engaging portion 2a of the floating portion 2 is supported from two directions by the holding portion 4b of the lock plate 4 and the pressing plate 6a of the rotating plate 6. Therefore, the engaging portion 2a is not displaced from the groove 4a of the holding portion 4b, the lock is stable, and the recording medium can be securely mounted without damaging the recording medium.

(4) Other Embodiments The present invention is not limited to the above-described embodiments, and specific shapes and the like of each member can be appropriately changed.
For example, if the rotating plate 6 is provided also in the front, and the front engaging portion 2a is also supported from two opposite directions,
Further secure locking becomes possible. Further, the left and right positions of the entire mechanism can be configured to be reversed.

The cam mechanism is not limited to the cam groove 4c and the cam pin 5, but may be a lock plate 4c.
What is necessary is just to be able to rotate the rotation plate 6 by the movement of.

Further, various recording media such as a CD, an LD, a cassette tape, a video tape, a floppy disk, an optical disk, and an MD can be applied as a recording medium to which the present invention is applied.

[0020]

According to the present invention as described above, it is possible to provide a floating lock mechanism capable of reliably locking by locking the floating portion from two opposite directions.

[Brief description of the drawings]

FIG. 1 is a plan view showing an embodiment of a floating lock mechanism of the present invention.

FIG. 2 is a left side view showing an embodiment of the floating lock mechanism of the present invention.

FIG. 3 is a perspective view showing a state in which the rotating plate in the embodiment of the floating lock mechanism of the present invention locks the floating portion.

FIG. 4 is a perspective view showing a state in which the rotating plate in the embodiment of the floating lock mechanism of the present invention has a floating portion released.

FIG. 5 is a perspective view showing an engaging portion and a holding portion in an example of a conventional floating lock mechanism.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Chassis 2 ... Floating part 2a ... Engaging part 2b ... Groove 3 ... Anti-vibration damper 4 ... Lock plate 4a ... Groove 4b ... Holding part 4c ... Cam groove 5 ... Cam pin 6 ... Rotating plate 6a ... Holding plate 7 ... Slide Plate 7a: Projection

Claims (1)

(57) [Scope of request for utility model registration] A floating portion supported by an elastic member on a chassis of the recording / reproducing apparatus, a concave engaging portion provided on the floating portion, and a movable portion movable to the chassis. A floating lock having a lock member provided and a concave holding portion provided on the lock member so as to engage and disengage with the concave engagement portion by movement of the lock member to lock and unlock the floating portion. A rotation member rotatably provided on the chassis; and a cam mechanism provided on the rotation member and the lock member such that the rotation member is rotated by movement of the lock member. A holding portion that supports the concave engagement portion from a direction facing the concave holding portion by the rotation of the rotation portion, Floating lock mechanism, characterized in that, provided on the one end.