JP2930155B2 - Mechanism locking device for in-vehicle equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an in-vehicle device such as a disk device for in-vehicle use, and in particular, to lock a drive chassis supported inside a housing via an elastic member such as a damper so that the drive chassis cannot move in the housing. The present invention relates to a mechanism locking device for a vehicle-mounted device.

[0002]

2. Description of the Related Art FIG. 7 shows a conventional in-vehicle disk player. A drive chassis 2 is supported through an elastic member 3 such as an oil damper inside a housing 1 installed inside the vehicle body. When the disk D is being played, vibration of the vehicle body is applied to the drive chassis 2. It can be prevented from being transmitted. The drive chassis 2 includes a turntable 4 on which the disk D is installed, a pickup 5 for reproducing recorded information of the disk D, and the like. The disk D is sandwiched between the rollers 6 and 7 and fed by the rotation of the roller 6, and the disk D is clamped on the turntable 4 by a clamper (not shown) while the disk D is installed on the turntable 4.

When the disk D is fed into the housing 1 by the rollers 6 and 7 and when the disk D is ejected, the drive chassis 2 supported by the elastic member 3
So that the disk D is not moved in the housing 1 so that the disk D can be easily positioned on the turntable 4 when the disk D is moved onto the drive chassis 2, and the disk D can be easily discharged from the drive chassis 2. It is necessary to. As a locking mechanism for regulating the drive chassis 2 in the housing 1, a positioning groove 2a is formed on the side surface of the drive chassis 2, and a lever 8 that moves in the left and right direction in the drawing is provided inside the housing 1. This lever 8
Is provided with a lock pin 9. During the reproducing operation of the disc D, the lever 8 is driven rightward in the drawing, the lock pin 9 is pulled out of the positioning groove 2a, and the drive chassis 2 is supported by the elastic member 3 in the housing 1. Conversely, when the disc D is inserted or ejected, the lever 8 is driven leftward in the figure, the lock pin 9 is fitted in the positioning groove 2a, and the drive chassis 2 is locked.

[0004]

However, in the conventional apparatus shown in FIG. 7, the lever 8 is moved and the lock pin 9 is moved in the horizontal direction to lock the drive chassis 2, so that the lever 8 is moved. The force acts on the drive chassis 2 as it is. Therefore, the drive chassis 2
It is necessary to provide another regulating mechanism to regulate the drive chassis 2 so as not to move to the left in the drawing, or to provide a lock pin that operates in the direction opposite to the lever 8 in order to reliably regulate and lock the It is necessary to lock the drive chassis 2 from the opposite direction. Providing a restriction mechanism different from the lever 8 or providing a lock pin that moves in the opposite direction to the lever 8 complicates the mechanism located between the side surface of the drive chassis 2 and the inner surface of the housing 1. The width of the housing 1 is increased or the layout design of the internal mechanism of the housing 1 becomes difficult. Further, in order to provide a mechanism for moving the lever 8 in the direction opposite to the moving direction, a mechanism for changing the driving direction of the lever 8 to the opposite direction is required, and the structure becomes very complicated.

The present invention has been made to solve the above-mentioned conventional problems, and it is possible to reliably lock a drive chassis inside a housing only by moving a single switching lever, thereby simplifying a mechanism structure and providing an accurate drive chassis. It is an object of the present invention to provide a mechanism lock device for an in-vehicle device which enables positioning of a vehicle.

[0006]

A mechanism locking device according to the present invention is a vehicle-mounted device in which a drive chassis is supported via an elastic member inside a housing installed in a vehicle, wherein the housing includes : Located on both sides of the drive chassis
Provided between the slide member and the slide member.
Power from one slide member
A switching lever that slides to transmit to the material,
The moving force is transmitted between the switching lever and both slide members.
Rotatable connecting link and the slide of the two slide members.
Rod that is locked to the drive chassis by the
For transmitting the moving force between the locking means A and the slide member.
This switching lever is provided separately from the switching lever for
Due to the sliding movement of the bar, the drive chassis
Locking means B to be locked is provided;
When the material and the switching lever operate in a predetermined direction,
The drive chassis is constituted by the locking means A and the locking means B.
It is characterized by being restrained from opposite directions . Further, in the present invention, the connecting link is driven by its rotational force.
Is locked to the drive chassis and functions as a locking member.
Preferably work.

[0007]

In the above means, when the drive chassis inside the housing is locked, it is provided on both sides of the drive chassis.
Provided between the slide member and the slide member.
Slide the selected switching lever. And this
Sliding force of the sliding member and the control lever is operated the lock means A and lock means B, the lock hand
The drive chassis is regulated from the opposite direction by the step A and the lock means B , and the drive chassis supported by the elastic member is regulated so as not to move.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. 1 and 2 are plan views showing the structure of an on-board disc player for each operation, and FIGS. 3 to 6 are III, IV, V, and VI views in FIGS. 1 and 2, respectively. Reference numeral 11 in the figure denotes a housing installed inside, for example, a dashboard of an automobile. A drive chassis 12 is housed inside the housing 11. The drive chassis 12 is elastically supported by three elastic members 13 such as oil dampers and other elastic members as necessary. The drive chassis 12 is provided with a turntable 14 for driving the disk D to rotate and a motor for driving the turntable 14 to rotate. The drive chassis 12 is provided with a pair of guide shafts 15, 15.
It is supported so that it can be guided and moved by 5,15. The optical pickup 16 has an objective lens 16 a and other optical elements mounted thereon, and has guide shafts 15 and 1.
When the optical pickup 16 moves in the radial direction of the disk along the line 5, the information recorded on the disk is reproduced. Although not shown, the drive chassis 12 is provided with a clamp arm. When a disk is loaded, the disk is positioned on the turntable 14 and clamped by a clamper provided on the clamp arm. .

The switching lever 2 is provided on the bottom surface 11a of the housing 11.
1 is provided. The long hole 21 a formed in the switching lever 21 is guided by a guide pin 22 provided on the bottom surface 11 a of the housing 11, and the relative movement between the long hole 21 a and the guide pin 22 causes the switching lever 21 to move to A. -B
It can be slid in a direction along a movement trajectory substantially close to an arc trajectory. Similarly, a drive lever (slide member) 23 is provided on the bottom surface 11 a of the housing 11. Long hole 23a formed on the drive lever 23 is guided by a guide pin 24 fixed to the bottom surface 11a of the housing 11, the drive lever 23 by the guide is slidably supported to the C-E direction . A switching disk cam 25 is provided inside one side surface 11b of the housing 11. The disc cam 25 is provided with a drive pin 26, which is inserted into a groove 23c formed in a bent piece 23b of the drive lever 23, and has a 180-degree angle of the disc cam 25. The driving lever 23 is slid in the C direction or the E direction by the rotation operation.

A support shaft 27 is fixed to the bottom surface 11a of the housing 11 on the right side of the drive lever 23 in the figure, and a connecting link 28 is rotatably supported on the support shaft 27. A drive pin 29 is provided at the right end of the drive lever 23 in the figure.
Is provided. The drive pin 29 is connected to the drive link 2
8, the connecting link 28 is driven counterclockwise when the driving lever 23 is driven in the C direction, and is connected when the driving lever 23 is driven in the E direction. 28 is driven clockwise. A connection pin 31 is provided at the tip of one arm 28b of the connection link 28, and the connection pin 31 is inserted into the drive groove 21b of the switching lever 21, and the drive lever 23 is driven in the direction C. When the connecting link 28 is driven in the counterclockwise direction, the switching lever 21 is driven in the A direction (the state of FIG. 1), the driving lever 23 is driven in the E direction, and the connecting link 28 is driven in the clockwise direction. Sometimes, the switching lever 21 is driven in the B direction. Further, a plurality of lock members for locking the drive chassis 12 supported by the elastic member 13 in the housing 11 are provided in the housing 11.

First, a first lock member ( lock means A) 32 located on the lower side in FIGS. 1 and 2 is driven by the drive lever 23. The lock member 32 is rotatably supported by a support shaft 33 fixed to the bottom surface 11 a of the housing 11. The lock member 32 is provided with an arm 32a, and the arm 32a is engaged with a drive hole 23d formed in the drive lever 23. Drive lever 23 is C
When driven in the −E direction, the driving hole 23d applies a driving force to the arm 32a, and thereby the lock member 32 is driven clockwise or counterclockwise. Also, the first lock member 3
2, a regulating arm 32b is formed, and as shown in FIG. 2, when the lock member 32 is driven counterclockwise,
A regulating recess 23e formed at the left end of the driving lever 23 in the figure.
And the restricting arm 32b are fitted to each other so that the rotation of the lock member 32 is restricted.

A lock pin 32c is formed integrally with the first lock member 32. On the other hand, the lower side surface 12a of the drive chassis 12 shown in FIG.
A restriction groove 12b is formed as shown in FIG. 2), and when the first lock member 32 is driven counterclockwise as shown in FIG. 2, the lock pin 32c is inserted into the restriction groove 12b. It fits. Lock member 3
2 has a vertical surface 32d.

A second position is shown at the right side in FIGS. 1 and 2.
(Lock means B) 35 is provided.
The second lock member 35 is rotatably supported by a support shaft 36 provided on the bottom surface 11 a of the housing 11. The second lock member 35 is engaged with the connection hole 21c of the switching lever 21 via the connection pin 37, and when the switching lever 21 is driven in the direction A, the second lock member 35 moves counterclockwise. Is driven, and the switching lever 21
When driven in the direction, the second lock member 35 is driven clockwise.

As shown in FIG. 4, the second lock member 35
A substantially V-shaped lock groove 35a is formed at the tip of the arm. As shown in FIGS. 1 and 2, the lock groove 35 a protrudes rightward in the drawing of the drive chassis 12 and supports the edge 12 of the support plate 12 c supported by the elastic member 13.
When the second lock member 35 rotates clockwise, the lock groove 35a is formed in the edge 12d of the support plate 12c as shown in FIG. The drive chassis 12 in the vertical direction (FIGS. 1 and 2).
In this case, the movement to the front and back sides of the paper is restricted. In FIGS. 1 and 4, the bottom of the lock groove 35a is indicated by reference numeral 35b.

A third lock member (connection link) 41 is provided at an upper position in FIGS. 1 and 2. This third
The lock member 41 is rotatably supported by a support shaft 42 fixed to the bottom surface 11 a of the housing 11. A connection pin 41a is formed integrally with the third lock member 41. The connection pin 41a is fitted in a drive groove 21d formed at an end of the switching lever 21, and the switching lever 21 is moved in the direction A. When the third lock member 41 is driven in the clockwise direction, the lock member 41 is driven in the counterclockwise direction when the switching lever 21 is driven in the B direction. A bent piece 12e is provided at the upper end of the drive chassis 12 in FIG.
As shown in FIG. 2V, a restriction groove 12f is formed in the bent piece 12e. As shown in FIG.
When the lock member 41 is driven in the counterclockwise direction, the lock pin 41b formed integrally with the lock member 41 is fitted into the restriction groove 12f. Also the third
Of the lock member 41 is a vertical surface 41d.

Further, the upper side 1 of the housing 11 shown in FIG.
A fourth lock member (slide member) is provided inside 1d.
Is provided. As shown in FIG. 6 (a view taken in the direction of arrow VI in FIG. 1), a pin 45a formed on the lock member 45 is
It is slidably supported in the CE direction by a long hole 11c formed in a side plate of the housing 11. As shown in FIG. 1, a hole 45b is formed in the fourth lock member 45,
A drive arm 41c integrally formed with the third lock member 41 is engaged in the hole 45b. When the third lock member 41 is driven counterclockwise by the moving force of the switching lever 21 in the B direction, the third lock member 41
The fourth lock member 45 is driven in the E direction by the drive arm 41c formed in the second direction. The fourth lock member 45 is integrally formed with a lock projection 45c (lock means A) projecting toward the drive chassis 12.

As shown in FIG. 6, the drive chassis 12
A restriction groove 12h is formed in the bent piece 12g on the side surface of the lock member 45. When the fourth lock member 45 is driven in the E direction, the lock protrusion 45c fits into the restriction groove 12h. That is,
When the switching lever 21 is driven in the direction B and the third lock member 41 is driven in the counterclockwise direction, the lock member 41
The lock pin 41b formed in the hole is rotated counterclockwise to fit in the restriction groove 12f, and the lock pin 41b presses the restriction groove 12f in the C direction. At the same time, the fourth lock member 45 moves in the direction E, and the lock projection 45c is
2h, and the lock projection 45c makes the regulating groove 12h
Press in the direction. Therefore, the rotation of one lock member 41 applies a restricting force to the drive chassis 12 in directions opposite to each other in the C direction and the E direction.

Further, a tapered surface 45e is formed at the left end of the fourth lock member 45, and the side surface of the lock member 45 is a vertical surface 45d which can be pressed against the bent piece 12g of the drive chassis 12. The fourth lock member 4
5 will be described with reference to FIG. A drive roller 51 is provided on the left side in FIG. 6 (the right side in FIGS. 1 and 2) in the housing 11. The drive roller 51 is supported by a roller bracket 52, and swings between a solid line state and a broken line state shown in FIG. In this embodiment, the other roller bracket provided inside the side surface 11b of the housing 11 is oscillated by the power of the drive lever 23 shown in FIGS. 1 and 2, and the side surface connected to the roller bracket. The roller bracket 52 on the 11d side is swung together. In FIG. 6, when the roller bracket 52 is rotated in the counterclockwise direction, the disk is sandwiched between the driving roller 51 and the roller shoe 54, and the driving roller 51 is rotationally driven by a driving mechanism (not shown).
Disk D is shown in the right direction in FIG. 1 (left direction in FIG. 6).
The disk D is discharged from the inside of the housing 11 to the outside.

As shown in FIG. 6, a positioning recess 52a is formed in the roller bracket 52.
The lock member 45 is formed with a lock projection 45d. When the roller bracket 52 rotates clockwise as shown by the solid line in the reproduction state of the disk D, and when the drive roller 51 is separated from the disk D and descends,
The lock projection 45d of the fourth lock member 45 that has moved in the direction C fits into the positioning recess 52a so that the roller bracket 52 can be locked. That is, the roller bracket 52 shown in FIG. 6 is provided inside the side surface 11d of the housing at the upper part of FIGS. 1 and 2 and another roller bracket connected to the roller bracket 52 is the same as that shown in FIGS. The roller bracket provided inside the lower side surface 11b in the drawing and located inside the side surface 11b is driven by the drive lever 23, and each roller bracket is positioned between the position indicated by the solid line and the chain line in FIG. Moved. Therefore, the roller bracket 52 shown in FIG. 6 is separated from the drive lever 23 and is in a state of being easily changed. Therefore, as shown in FIG. 6, by locking with the lock projection 45d and the positioning recess 52a, the roller bracket 52 can be locked in the disc reproducing state.
Is stabilized in the state shown by the solid line in FIG.

Next, the overall operation of the above embodiment will be described. FIG. 1 shows a disk playback state. At this time, the drive pin 26 provided on the disc cam 25 has been rotated rightward in the drawing, and the drive lever 23 has been driven in the C direction. Therefore, the connecting link 28 is driven in the counterclockwise direction, and the switching lever 21 is driven in the A direction by the connecting pin 31 provided on the connecting link 28. As shown in FIG. 1, a first lock member 32 is driven clockwise by a drive hole 23d provided in the drive lever 23, and a lock pin 32c formed in the lock member 32 is moved to the drive chassis 12 shown in FIG. From the regulating groove 12b. The second lock member 35 is driven in the counterclockwise direction by the connecting pin 37, and the lock groove 35a formed at the tip of the lock member 35 is disengaged from the edge 12d of the support plate 12c of the drive chassis 12. .

Since the switching lever 21 is driven in the direction A, the third lock member 41 is driven clockwise, and the drive arm 41c formed on the lock member 41 is driven.
As a result, the fourth lock member 45 is driven in the C direction. Therefore, the lock pin 41b formed on the third lock member 41 has come out of the regulation groove 12f of the drive chassis 12 shown in FIG.
The lock projection 45c provided on the lock member 5 comes out of the restriction groove 12h of the drive chassis 12 shown in FIG. 6, and the vertical surface 45d is separated from the bent piece 12g. Thus, in the disk reproduction state shown in FIG.
Are separated from the drive chassis 12, and the drive chassis 12 is in an unlocked state and is elastically supported in the housing 11 by an elastic member 13 such as an oil damper.

Further, as shown in FIG. 6, a lock projection 45d formed on the fourth lock member 45 is fitted into a positioning recess 52a formed on the roller bracket 52. Locked in a clockwise rotation. Roller bracket 5
2 is rotated clockwise in FIG. 6, the drive roller 51 is separated from the disk D,
Is clamped by the clamper while being set on the turntable 14, and the reproducing operation is performed. When the disc D is inserted or ejected, as shown in FIG. 2, the drive pin 26 provided on the disc cam 25 moves to the left in the drawing, and the drive lever 23 is driven in the E direction. A drive pin 29 provided at the right end of the drive lever 23 in the drawing slides along the arm 28a of the connection link 28, and
Is driven in the clockwise direction, so that the switching lever 21 is driven in the B direction via the connecting pin 31.

In the state shown in FIG. 2, the first lock member 32 is driven in the counterclockwise direction by the drive hole 23d formed in the drive lever 23, and the restriction recess 23e formed in the drive lever 23 is moved to the restriction arm 32b. The lock member 32 is fitted and held in a state rotated counterclockwise. Therefore, the lock pin 32c formed on the lock member 32 is
(1) is fitted into the restriction groove 12b of the drive chassis 12 shown in FIG. The second lock member 35 is also driven clockwise, and a lock groove 35a provided at the front end of the lock member 35 sandwiches the edge 12d of the support plate 12c of the drive chassis 12 (see FIG. 4), the movement of the drive chassis 12 in the vertical direction (the direction of the front and back in FIG. 2) is restricted, and the portion where the lock groove 35a is formed abuts on the bent rising surface 12i of the support plate 12c to drive the drive. The movement of the chassis 12 in the direction E is restricted.

Further, the third lock member 41 is driven in the counterclockwise direction by the movement of the switching lever 21 in the B direction, and the fourth lock member 45 is moved in the E direction by the drive arm 41c formed on the lock member 41. Has been driven to. The lock pin 41b provided on the third lock member 41
Are fitted in the regulating grooves 12f of the drive chassis 12 shown in FIG. 5, and the lock projections 45c provided on the fourth lock member 45 are fitted in the regulating grooves 12h of the drive chassis 12 shown in FIG.

That is, the drive chassis 12 is pushed and regulated in the direction E by the lock pin 32c of the first lock member 32, and the bent rising surface 12i is urged in the direction C by the lock groove 35a of the second lock member 35. Have been. The lock pin 41b provided on the third lock member 41 is connected to the restriction groove 12 of the drive chassis 12 shown in FIG.
f is pressed in the direction C, and a lock projection 45c provided on the fourth lock member 45 is fitted in the restriction groove 12h of the drive chassis 12 to press the drive chassis 12 in the direction E. As described above, the drive chassis 12 is pushed in the opposite directions of the C direction and the E direction by the respective lock members.
Movement in the C direction is completely restricted.

The vertical surface 32 of the first lock member 32
d comes into contact with the side surface 12a of the drive chassis 12, the drive chassis 12 is pushed in the direction A and regulated, and the vertical surface 45d of the fourth lock member 45 is connected to the side plate 11d of the housing 11.
The drive chassis 12 is pushed in the direction B by intervening between the inner surface of the drive chassis 12 and the bent piece 12g of the drive chassis 12. Further, as shown in FIG. 4, the support plate 12 of the drive chassis 12 is formed by the lock groove bottom 35b of the second lock member 35.
The edge 12d of c is pressed in the direction A, and the vertical surface 41d of the third lock member 41 abuts on the bent piece 12e of the drive chassis 12 to urge in the direction B. As a result, the movement of the drive chassis 12 in the AB direction is completely restricted.

Further, the lock groove 3 of the second lock member 35
5a sandwiches the support plate 12c from above and below, and when the lock pin 32c of the first lock member 32 fits into the regulating groove 12b of the drive chassis 12, the side surface 12d of this portion is fixed vertically. Further, the bent pieces 12e and 12g of the drive chassis 12 are vertically fixed by the third and fourth lock members. Thereby, the vertical movement of the drive chassis 12 is completely restricted. The locking function of each locking member completely restricts the movement of the drive chassis 12 in all directions, such as the AB direction, the EC direction, and the direction perpendicular to the plane of the drawing. The lock projection 45d of the fourth lock member 45 shown in FIG.
a, the roller bracket 52 is in a free state. Therefore, the roller bracket 52 is driven in a counterclockwise direction by a drive mechanism (not shown), the disk D is sandwiched between the drive roller 51 and the roller shoe 54, and the disk D is fed into and out of the housing 11.

Although the above-described embodiment is directed to an in-vehicle CD player, various types of disk reproducing devices in an in-vehicle information display device, a navigation device, and the like, and a drive for in-vehicle equipment using a recording medium other than a disk. It can be used as a lock mechanism for a chassis.

[0029]

As described above, according to the present invention, the sliding portion
Operate a plurality of lock members by the material and the switching lever,
The drive chassis can be regulated from the opposite direction by the plurality of lock members. Therefore, the drive chassis can be securely locked only by operating the switching lever, and for example, the operation of inserting and ejecting the disk can be reliably performed. A switching lever and this switching lever
The slide member connected to the key slides and moves
The switching lever and the slide member
It is enough to secure enough space to slide
Does not require wasteful space.

[Brief description of the drawings]

FIG. 1 is a plan view showing an unlocked state of a drive chassis in an in-vehicle disk player.

FIG. 2 is a plan view showing a locked state of a drive chassis in the vehicle-mounted disc player;

FIG. 3 is a view taken in the direction of the arrow III in FIG. 1;

FIG. 4 is a view taken in the direction of the arrow IV in FIG. 2;

FIG. 5 is a view taken in the direction of arrow V in FIG. 2;

FIG. 6 is a view taken in the direction of arrow VI in FIG. 1;

FIG. 7 is a side view showing a mechanism locking device of a conventional vehicle disk device;

[Explanation of symbols]

Reference Signs List 11 housing 11a bottom surface of housing 12 drive chassis 12b, 12f, 12h regulating groove 12c support plate 13 elastic member 14 turntable 16 pickup 21 switching lever 23 drive lever (slide member) 28 connecting link 32 first lock member (lock means A) ) 32c lock pin 35 second locking member (locking means B) 35a lock groove 41 third locking member (connecting link) 41b lock pin 45 fourth locking member (slide member) 45 c locking projection (locking means a) D disk

Claims (2)

(57) [Claims] 1. An in-vehicle device in which a drive chassis is supported via an elastic member inside a casing installed in a vehicle, wherein the casing has both sides sandwiching the drive chassis.
And a slide member disposed between the slide members.
Power from one slide member and the other slide member.
Switching lever that slides to transmit to the transmission member
And the moving force between the switching lever and both slide members.
A rotatable connecting link for transmitting, and the two slide members
Is locked to the drive chassis by the sliding movement force of
The moving force is transmitted between the locking means A and the slide member.
The switching lever is provided separately from
Due to the sliding movement force of the switching lever, the drive shaft
Locking means B which is locked to the
When the guide member and the switching lever operate in a predetermined direction,
The drive mechanism is formed by the lock means A and the lock means B.
A mechanism locking device for a vehicle-mounted device, wherein the chassis are restrained from opposite directions . 2. The method according to claim 1, wherein the connecting link is driven by its rotational force.
Locked to the drive chassis to function as a locking member
The mechanism locking device for a vehicle-mounted device according to claim 1.