JP2578017Y2 - Playback device vibration isolation support structure with high installation flexibility - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an anti-vibration support structure in which a reproducing apparatus can be easily installed in a vehicle in either a horizontal or vertical installation system.

[0002]

2. Description of the Related Art A playback device such as a home CD disk playback device is designed on the premise that the playback device is placed horizontally. On the other hand, since the on-vehicle equipment is installed in a narrow space inside the vehicle, the installation form is appropriately changed to a horizontal or vertical installation according to the internal space of the trunk and the relationship of position with other items and the like. I have. Therefore, in-vehicle playback devices are required to have a high degree of freedom in installation form.

[0003] The present inventors have developed a CD player which can be used either horizontally or vertically, and which can pick up in accordance with the installation posture. As one of them, as shown in FIG. 1, a CD player in which a support frame 1 is floatingly supported in an outer casing 2 is provided.
It was proposed in Japanese Patent Application No. 1-109666.

In this floating support device,
The damper 2a ₁ to 2A region ₄ filled with viscous fluid such as silicon oil inside the four corners of the outer casing 2 is fixed, the one end of the supporting rod 2b ₁ ~2b ₄ are inserted into the damper 2a ₁ to 2A region _4. The other end of the support rod 2b ₁ ~2b ₄ is attached to the support plate 1a ₁ to 1A ₄ secured to the support frame 1.

[0005] A plurality of trays are vertically stacked on the magazine 3 housed in the support frame 1, and has a function as a disc changer for sending out an appropriate tray to a pickup section and exchanging a playback disc. Tray 3b _n equipped with the disk 3a _n to be reproduced
Is kicked out by an appropriate kicking mechanism and is positioned at the position shown in the figure. Disc 3a _n is held in this position by a clamper (not shown), information recorded on the disc 3a _n is reproduced by the pickup 3c.

The side surface of the support frame 1 and the outer casing 2
The anti-vibration mechanism 4 is provided between the inner side and the inner side. Anti-vibration mechanism 4 is provided with four vibration isolating springs 4a ₁ to 4A ₄ which is stretched between the inner surface of the outer casing 2 at both sides of the support frame 1. Vibration isolating springs 4a ₁ to 4A ₄ has a lower end pivotably mounted to the support shaft 4b ₁ ~4b ₄ attached to the side surface of the support frame 1, the rotary plate 4c ₁ ～4C projecting end of ₄ 4j ₁ upper end ～4J ₄ is rotatably mounted.

[0007] rotation plate 4c ₂ is pivotally mounted on the inner surface of the outer casing 2 by a support shaft 4d _2. The rotary plate 4c _2, arcuate openings 4e _2, 4f ₂ a central angle of 90 degrees is formed point-symmetrically about the support shaft 4d _2. Guide shafts 4g ₂ and 4h ₂ fixed to the side surface of the outer casing 2 are engaged with the arc-shaped openings 4e ₂ and 4f ₂ , respectively. The other rotating plates 4c ₁ , 4c ₃ and 4c ₄ have the same configuration.

[0008] In the state of FIG. 1 in which the CD player transversely, projecting end of each time rotation plate 4c ₁ ~4c ₄ 4j ₁ ~4j ₄
There located above, anti-vibration spring 4a ₁ to 4A ₄ it becomes closer to upright lowered from the upper side of the outer casing 2 hanging support frame 1. Accordingly, vibration generated when a vehicle or the like with a CD player is traveling, vertical force exerted by the impact or the like is absorbed by the elastic deformation of the vibration isolating springs 4a ₁ to 4A _4, giving a vibration to the support frame 1 Nothing.

[0009] When changing from Desktop the installation mode of the CD player in the upright position, the rotary plate 4c ₁ ~4c ₄ is rotated 90 degrees in the same direction. As a result, the anti-vibration spring 4a ₁ ~4a
₄ is extended in the depth direction of the outer casing 2, and the support frame 1 is hung in the outer casing 2 in the depth direction. Therefore, the vibration in the depth direction which occurs during running of the vehicle, external force such as shock is absorbed in a similar elastic deformation of the vibration isolating springs 4a ₁ to 4A _4, it is not to propagate the vibration to the supporting frame 1.

[0010]

The present invention is to provide a rotary plate 4c ₁ ~4c ₄
Working freedom of the rotation operation can be installed either CD player horizontally placed or vertically by changing the stretched direction of the vibration isolating springs 4a ₁ to 4A ₄ is, when mounting the CD player to narrow interior space Greatly improve. However, the anti-vibration spring 4a
It is necessary to work to change the stretched direction of _{1 ~4a 4.}

[0011] anti-vibration spring 4a ₁ to 4A stretched direction of change of _4, i.e., the rotational operation of the swing plate 4c ₁ ~4c ₄ is a Eteshite forget. In particular, in that there is a plurality of rotary plates 4c ₁ ~4c ₄ as shown in FIG. 1, one or more of which tend to set up the CD player in the vehicle in the state of intact. Moreover, after installed, it is impossible to confirm whether the stretched direction of the vibration isolating springs 4a ₁ to 4A ₄ are set correctly.

[0012] anti-vibration spring 4a ₁ to 4A ₄ is stretched in the wrong direction, the vibration generated during vehicle running, can not absorb the external force such as an impact, the damper 2a ₁ to 2A region ₄
Vibration propagating to the support frame 1 via the support member 1 increases.
As a result, deterioration of the damper 2a ₁ to 2A region ₄ is intense, the loading mechanism of the magazine 3 and the pickup 3c like incorporated in the supporting frame 1, a failure in reproduction mechanism and the like, which causes a trouble such as malfunction occurs.

The present invention has been devised in order to solve such a problem, and by automatically switching the direction of adjusting the vibration isolating spring in accordance with the horizontal or vertical installation mode, the present invention has been proposed. The purpose is to resiliently support the weight of the playback device main body with a vibration isolating spring in the proper direction without forgetting, and to protect the functional units such as the loading mechanism and playback mechanism incorporated inside the playback device body. And

[0014]

According to the present invention, there is provided a playback apparatus anti-vibration support structure, wherein a spring-hung arm rotatably provided on an inner surface of an outer casing accommodating a playback main body is provided. An anti-vibration spring stretched between a locking portion of a spring-hung arm and a side surface of the playback device main body, and protruding outward from a rotation center of the spring-hung arm to rotate integrally with the spring-hung arm. A switching lever, wherein the spring-hung arm rotates 90 degrees via the switching lever according to whether the switch is placed horizontally or vertically.

As a mechanism for rotating the spring arm by 90 degrees, a link which is pivotally mounted on the spring arm and projects outside the outer casing may be employed. In this case, when the tip of the link abuts on the vehicle floor or the like, the link is retracted into the outer casing, and the spring arm is rotated 90 degrees.

[0016]

In the anti-vibration support structure of the present invention, when the reproducing apparatus is installed horizontally or vertically on the floor of a vehicle or the like, the spring arm rotates 90 degrees according to the installation mode, and the anti-vibration spring is adjusted. The direction is switched to a direction suitable for the installation form. That is, when the apparatus is installed in the horizontal position, the vibration isolating spring is adjusted in the thickness direction of the playback apparatus main body. On the other hand, when the apparatus is installed in the vertical position, the vibration-proof spring is adjusted in the depth direction of the playback apparatus main body. In either case, the playback device main body is suspended inside the outer casing by a vibration-proof spring that is stretched in the direction of gravity. Therefore, external forces such as vibration and impact generated during running of the vehicle are efficiently absorbed by the inherent elastic deformation of the vibration isolating spring, and the propagation of vibration to the reproducing apparatus main body is suppressed.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be specifically described below with reference to the drawings. When the reproducing apparatus provided with the anti-vibration support structure of this embodiment is installed in a horizontal manner, it is arranged as shown in FIG. That is, the outer casing 20 containing the playback device main body 10 is attached to the horizontal mounting bracket 30.
To fix it to the floor of the vehicle. A magazine storage / loading mechanism, a pickup mechanism, and the like are incorporated in the reproducing apparatus main body 10 as in the case of FIG. The floating support of the reproducing apparatus main body 10 with dampers arranged at the four inner corners of the outer casing 20 is the same as in FIG. 1, but the dampers are omitted in FIG.

The playback apparatus main body 10 is elastically supported inside the outer casing 20 by a vibration-proof support mechanism 40. The anti-vibration support mechanism 40 includes a pair (two in total) of spring-arms 41 a and 41 on both right and left sides of the playback apparatus main body 10.
b. In FIG. 2, a spring arm 4 on the near side is shown.
Only 1a and 41b are drawn.

The spring arm 41a is attached to the inner plate at the back of the outer casing 10 so as to be rotatable about the pivot 42a. Spring hook arm 41b
Is attached to the inner plate inner part of the outer casing 10 so as to be rotatable about the pivot 42b.

The spring arm 41a has a locking portion 43a.
And 44a are provided. One end of the anti-vibration spring 45a is hooked on the locking portion 43a, and the other end is connected to the main body 1 of the reproducing apparatus.
It is hooked on a locking projection 10a provided on the side surface of the "0". A return spring 46 stretched between the other engaging portion 44a and the engaging protrusion 21 provided on the inner surface of the back plate of the outer casing 20 is provided.
One end of a is latched. Further, the switching lever 47a protruding outward from the pivot portion 42a is
1a and is integrally formed. The switching lever 47a
Can be incorporated as separate components as long as they rotate together with the spring arm 41a.

Similarly, locking portions 43b and 44b are formed on the other spring hook arm 41b. Locking portion 43b
An anti-vibration spring 45b is stretched between the locking projection 10b provided on the side surface of the reproducing apparatus main body 10 and the locking projection 10b. The locking portion 44b
The interlocking link 48 is connected to the locking portion 44a of the spring hook arm 41a.

Spring-hung arms 41a, 41b in a steady state
Are urged counterclockwise by the resilience of the return spring 46a. On the other hand, a clockwise rotational force is applied to the spring-arms 41a and 41b by the resilience of the anti-vibration springs 45a and 45b of the playback apparatus main body 10 which are pulled by gravity. Therefore, the anti-vibration spring 45 is set in the horizontal orientation shown in FIG.
The spring coefficients of the anti-vibration springs 45a and 45b and the return spring 46a are adjusted so that a and 45b extend in the thickness direction of the playback apparatus main body 10.

When the reproducing apparatus is installed in a horizontal type, the side surface of the outer casing 20 is fixed to the floor of the vehicle or the like by the mounting bracket 30 for horizontal installation. As the horizontal mounting bracket 30, for example, a bracket having screw insertion holes 31 formed on both sides of an L-shape is used. It is a matter of course that a screw fastening hole (not shown) is also formed in the outer casing at a position corresponding to the screw insertion hole 31 of the horizontal mounting bracket 30.

In a reproducing apparatus placed horizontally on the floor of a vehicle or the like, the vibration isolating springs 45a and 45b are connected to the main body 1 of the reproducing apparatus.
0, ie, extends in the vertical direction. Therefore, the playback device main body 10 is suspended vertically downward inside the outer casing 20. Thus, the vibration-proof spring 45
When an external force such as vibration or impact generated by running of a vehicle or the like is applied to the playback device in which the playback device body 10 is elastically supported by the a and 45b, the external force is effectively absorbed by the elastic deformation of the vibration isolation springs 45a and 45b, and the playback is performed. Vibration propagation to the device body 10 is suppressed. As a result, the functional unit is protected by the loading mechanism, the pickup mechanism, and the like inside the playback apparatus main body 10.

When the reproducing apparatus is installed vertically, a mounting bracket 35 for vertical installation as shown in FIG. 3 is used. The mounting bracket 35 for vertical installation is connected to a bottom 36 in contact with the floor of the vehicle or the like.
The upright portion 37 is formed in an L-shaped cross section which rises vertically. A plurality of screw insertion holes 36a through which screws fixed to the floor of the vehicle or the like are inserted are formed in the bottom 36. The upright portion 37 is provided with a plurality of screw insertion holes 37a into which screws fixed to screw fastening holes formed in the side surface of the outer casing 20 are inserted.

Switching pins 38, 38 protrude from the surface of the upright portion 37 facing the side surface of the outer casing 20. The length of the switching pins 38a, 38c is determined by the ends of the switching pins 38a, 38c penetrating through pin insertion holes (not shown) formed in the side surface of the outer casing 20.
7a, and is set to a length such that the spring arm 41a is rotated 90 degrees clockwise in FIG. 2 around the pivot 42a. The switching pin 38a contacts the switching lever 47a on the near side in FIG. 2, and the switching pin 38c contacts the switching lever (not shown) on the back side.

When a long metal fitting having a pair of switching pins 38a and 38c shown in FIG. 3 is used as the vertical mounting fitting 35, an upright portion 37 is applied to the entire length of the outer casing 20 in the width direction. . However, without being restricted to this, it is also possible to use short metal fittings applied to both widthwise ends of the outer casing 20.

As a short metal fitting, for example, as shown in FIG. 4, a bottom part 36 and an upright part 37 are formed into an L-shaped cross section.
A vertical mounting bracket 35 having one switching pin 38 protruding from the upright portion 37 is used. 4 are used without distinction at both ends in the width direction of the outer casing 20.

When the playback device is installed vertically using the mounting bracket 35 for vertical installation, the switching pin 38 of the mounting bracket 35 for vertical installation is inserted through a pin insertion hole (not shown) formed in the outer casing 20. . The switching pin 38 is inserted into the inside of the outer casing, and its tip abuts on the switching lever 47a of the spring arm 41a. When the insertion of the switching pin 38 is continued, the spring arm 41
As shown by an imaginary line in FIG. 2, the pivot shaft 42a receives the pressing force of the switching pin 38 and opposes the return spring 46a.
Is rotated clockwise by 90 degrees around.

The rotation of the spring arm 41a is transmitted to the other spring arm 41b via the interlocking link 48. As a result, the spring hanging arm 41b also rotates 90 degrees in the same direction as the spring hanging arm 41a. The 90-degree rotation of the spring arms 41a, 41b causes the vibration-proof springs 45a, 45b to extend in the depth direction of the reproducing apparatus main body 10.

In this state, the playback device is placed vertically, and the outer casing 20 is fixed to the vehicle floor or the like via the mounting bracket 35 for placement vertically. As shown in FIG. 5, the playback apparatus main body 10 includes an anti-vibration spring 45 extending in the depth direction of the playback apparatus main body 10.
a, 45b suspends the outer casing 20 vertically downward. The direction in which the external force such as vibration or impact generated by the vehicle running on the reproducing device is applied to the reproducing device in the up-down direction in FIG. 5, so that the external force is effectively absorbed by the elastic deformation of the vibration-proof springs 45a and 45b, and Vibration propagation to the main body 10 is suppressed. As a result, the playback device body 1
The functional unit is protected by a loading mechanism, a pick-up mechanism, and the like in the inside of the camera.

The mechanism for rotating the spring-arms 41a and 41b by 90 degrees is not limited to the abutment between the switching lever 47a and the switching pin 38 described with reference to FIGS. Arm 41a, 4
Other means can be employed as long as 1b automatically rotates 90 degrees. For example, as shown in FIG.
This protrusion can be used as a rotation mechanism.

In the example shown in FIG. 6, the spring arms 41a and 41b on the depth side and the front side have the same shape. The spring hanging arms 41a and 41b are connected by an interlocking link 48 which is pivotally mounted on the respective locking projections 44a and 44b. The link 48 is shown in FIGS.
Projecting portion 48 which is longer than that of the outer casing 20 and projects rearward from a hole (not shown) formed on the back surface of the outer casing 20.
have a.

The locking projections 43a and 43b of the spring arms 41a and 41b and the locking projections 11a and
11b, anti-vibration springs 45a and 45b elastically supporting the playback apparatus main body 10 are stretched. Further, a return spring 46a is stretched between the locking projection 44a of the spring hook arm 41a and the locking projection 21 of the outer casing 20. The spring coefficients of the anti-vibration springs 45a and 45b and the return spring 46a are set in the horizontal state shown in FIG.
5b is selected so as to extend in the thickness direction of the playback device main body 10. Note that the return spring 46a can be omitted.

In the horizontal state, as shown in FIG. 6, the reproducing apparatus main body 10 is suspended inside the outer casing 20 by the vibration isolating springs 45a and 45b extending in the vertical direction. In this state, the outer casing 20 is fixed to the vehicle floor by the horizontal mounting bracket 30. External forces such as vibration and impact mainly acting in the vertical direction when the vehicle is running or the like are efficiently absorbed by the elastic deformation of the vibration isolation springs 45a and 45b, and do not give vibration to the reproducing apparatus main body 10.

When the reproducing apparatus is installed vertically, the reproducing apparatus is installed on the floor of a vehicle or the like with the rear side of the outer casing 20 having the protruding portion 48a of the interlocking link 48 facing down. When the rear surface of the outer casing 20 is brought into contact with the vehicle floor, the protrusion 4
8a is the outer casing 2 due to the reaction force from the vehicle floor.
Retract inside 0. That is, the interlocking link 48 moves rightward in FIG.

The spring-arms 41a and 41b rotate 90 degrees clockwise about the pivots 42a and 42b by the movement of the interlocking link 48. Spring hook arm 41
After the a and 41b are rotated by 90 degrees, the anti-vibration springs 45a and 45b extend in the depth direction of the reproducing apparatus main body 10 as shown in FIG.
Is extending. In this state, the outer casing 20 is fixed to the vehicle floor by the vertical mounting bracket 35.

In the system in which the spring arms 41a and 41b are rotated by 90 degrees using the projecting portion 48a of the interlocking link 48, it is not necessary to form the switching pin 38 shown in FIG. Further, both the horizontal mounting bracket 30 and the vertical mounting bracket 35 have the same shape L
Mold fittings can be used.

The protruding portion 38a of the interlocking link 38 protruding to the rear side of the outer casing 20 is also used as a part of a lock mechanism. For example, an appropriate lock arm is provided on the rear side of the outer casing 20, and the protrusion 38 a is clamped by the lock arm to restrict the movement of the interlocking link 38. As a result, an unexpected impact is not applied to the reproducing apparatus main body 10 during transportation, storage, or the like, and damage can be prevented. Then, after the lock is released prior to installation, the outer casing 20 is fixed to the vehicle floor or the like in a horizontal type or a vertical type.

In each of the examples of FIGS. 2 to 5 and FIGS. 6 and 7, the spring hanging arms 41a and 41b rotate 90 degrees according to the horizontal or vertical installation mode. The direction in which the vibration isolating springs 45a and 45b are stretched is switched to a direction suitable for horizontal or vertical installation. Therefore, the external force applied after the installation is efficiently absorbed as the elastic deformation of the vibration isolation springs 45a and 45b, and the propagation of the vibration that causes a failure, malfunction or the like to the reproduction apparatus main body 10 is suppressed.

[0041]

As described above, according to the present invention, the anti-vibration support mechanism employs a spring arm which rotates as appropriate in the horizontal or vertical installation mode. Due to the 90-degree rotation of the spring arm, the direction in which the vibration isolating spring is stretched becomes vertical in either the horizontal or vertical installation mode. Therefore, external forces such as vibrations and impacts caused by running the vehicle are efficiently absorbed as elastic deformation of the vibration isolating spring, and the propagation of vibrations to the reproducing apparatus main body is suppressed. In addition, since the direction in which the vibration isolating springs are stretched is automatically switched depending on the installation mode, it is not necessary to perform a changeover operation as in the related art. Therefore, the vibration-proof spring is not only stretched in the correct direction, but also does not have an insufficient elastic support state due to forgetting to replace the vibration-proof spring, and the reproducing apparatus main body is reliably protected from vibration, impact, and the like.

[Brief description of the drawings]

FIG. 1 is a reproducing apparatus having an anti-vibration support mechanism previously proposed by the present inventors.

FIG. 2 is a reproduction apparatus having a vibration-proof support mechanism according to the first embodiment of the present invention.

FIG. 3 is a long vertical mounting bracket used for the vibration isolation support mechanism.

FIG. 4 is a short vertical mounting bracket used for the vibration isolation support mechanism.

FIG. 5 shows a state in which the reproducing apparatus is installed vertically.

FIG. 6 shows a reproducing apparatus having a vibration-proof support mechanism according to a second embodiment of the present invention.

FIG. 7 shows a state in which the reproducing apparatus is installed vertically.

[Explanation of symbols]

10 Reproduction body 20 Outer casing 40
Anti-vibration support mechanism 41a, 41b Spring arm 43
a, 43b Locking portions 45a, 45b Anti-vibration springs 47a, 47b Switching lever 48
Interlocking link 48a Projection of interlocking link

 ──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Toshiro Yamashita 25-1, Nishimachi, Yamada, Kawagoe-shi, Saitama Prefecture Pioneer Corporation Kawagoe Factory (56) References JP-A-4-362588 (JP, A) JP-A Heihei 2-2877992 (JP, A) Japanese Utility Model 3-71489 (JP, U)

Claims (2)

(57) [Scope of request for utility model registration] A spring arm rotatably provided on an inner surface of an outer casing accommodating the playback main body, and a spring arm extending between a locking portion of the spring arm and a side surface of the playback device main body. An anti-vibration spring, and a switching lever protruding outward from the rotation center of the spring arm and rotating integrally with the spring arm. Wherein the spring arm is rotated 90 degrees. 2. A spring-hung arm rotatably provided on an inner surface of an outer casing accommodating a reproducing main body, and a spring-hung arm stretched between a locking portion of the spring-hung arm and a side surface of the reproducing apparatus main body. An anti-vibration spring and a link axially attached to the spring-hung arm and protruding outside the outer casing, wherein the spring-hook arm is 90 degrees via the link depending on whether it is placed horizontally or vertically. A playback device anti-vibration support structure characterized by rotating.