JP2000347579A - Moving member guide device for electronic apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a moving member guide device of an electronic apparatus formed to a structure to obviate the generation of excessive load as a machine capable of preventing the shaking in a case of the moving member. SOLUTION: Side plates 11a and 11b of a casing 11 constituting the case are provided with guide members 31a and 31b. A bracket 45 is mounted at the moving member 15 moving in the casing 11. A supporting member 52 for supporting a roller 54 is freely rotatably supported at the bracket 45. The roller 54 is kept urged outward by a torsion spring 56. The roller 54 is pressurized into a groove 32a of the guide member 31a by the urging force and the moving member 15 is held without shaking within the casing 11 by the pressurizing force thereof, by which the moving member 15 may be smoothly moved.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic apparatus in which a moving member supporting, for example, a display member or an operating member moves within a case, and more particularly to a moving member guiding device for moving the moving member.

[0002]

2. Description of the Related Art FIG. 7 is a partial side view of a conventional on-vehicle electronic device. The case 1 has a box shape, and the case 1 is buried in a dashboard or the like in a passenger compartment of an automobile. The front of the case 1 is the opening 1a. In the case 1, the moving member 2 moves from the inside of the case 1 to a position protruding forward of the case as shown in FIG.

[0003] A rotating part 3 is rotatably connected to the moving member 2 by a connecting shaft 4. The rotating part 3 is a bracket 3 rotatably connected by the connecting shaft 4.
a supports a device main body 5 having a display function and an operation function. A display unit and an operation unit are provided on a front surface 5 a of the device main body 5. When the moving member 2 retreats into the case 1, the rotating portion 3 is stored in the case 1 in the horizontal posture shown in FIG.

When the electronic device is used, the moving member 2 and the rotating portion 3 project forward from the opening 1a of the case 1 as shown in FIG. Thereafter, the rotating part 3 is rotated upward with the connecting shaft 4 as a fulcrum, and the front face 5a of the device main body 5 is turned forward, and the front face 5
The user can visually check the display unit provided at a and operate the operation unit.

[0005]

However, in the electronic device shown in FIG. 7, since the moving member 2 moves back and forth in the case 1 while supporting the heavy rotating part 3, the case 1
If there is a clearance between the guide portion inside and the moving member 2, the moving member 2 rattles in the case 1. In particular, when the moving member 2 rattles due to vibration of the vehicle body in a state where the rotating portion 3 projects forward of the case 1, the rotating portion 3 largely shakes. Also, large noise is generated due to the rattling of the moving member 2.

Conventionally, in order to prevent the above-mentioned rattling, generally, a leaf spring is provided on the moving member 2 and the leaf spring is slid while being elastically pressed against a guide portion in the case 1. However, in this means, the sliding of the leaf spring acts as a load when the moving member 2 moves. Further, when the guide member is used for a long time, the guide portion is scraped by the leaf spring, so that the operation of the moving member becomes awkward.

Further, it is necessary to mount a mechanism for moving the moving member 2 and a mechanism for rotating the rotating section 3 on the moving member 2, and the mechanical components are densely packed. In particular, when the thickness D0 of the rotating part 3 is reduced to make it thinner, the moving member 2 also becomes thinner, and the mechanical components are further densely packed in the moving member 2. In such a thin device, if a complicated mechanism for absorbing the movement of the moving member 2 other than the leaf spring is mounted on the moving member 2, the moving member 2
Assembly work becomes more difficult.

The present invention has been made to solve the above-mentioned conventional problems, and provides a moving member guide device for an electronic device having a structure which does not generate an excessive load as a mechanism for preventing the moving member from rattling in a case. It is intended to be.

According to the present invention, there is further provided an electronic apparatus capable of easily incorporating a mechanism for preventing rattling of a moving member into the moving member, and capable of coping with a dense arrangement of mechanical parts on the moving member. It is an object of the present invention to provide a moving member guide device.

[0010]

SUMMARY OF THE INVENTION A moving member guide device according to the present invention comprises a case, a pair of guide portions provided at intervals in the case, and a moving member supported on both sides by the guide portion. In an electronic device provided with a member and driving means for moving the moving member along the guide portion, the moving member is provided with a roller for rolling at least one of the guide portions, and rotating the roller. While a supporting member that is capable of supporting is supported on the moving member,
An urging member for urging the support member to press the roller against the guide portion is provided.

In the above means, the roller is pressed against the guide portion, and the moving member is pressed against the other guide portion by the reaction force, so that the rattling of the moving member can be prevented. In addition, when the moving member moves, the roller rolls on, for example, a groove or a rail of the guide portion, so that the moving load of the moving member is small. The rollers may be provided on both sides of the moving member, or the rollers may be provided only on one side of the moving member, and the other side may slide on the guide. In a structure in which the rollers are provided only on one side, the number of mechanical components can be reduced, and the moving member can move smoothly in the case.

A supporting member having the roller is rotatably supported on a bracket, and an urging member for urging the supporting member is mounted on the bracket. And a bracket on which a biasing member is assembled is attached to the moving member.

A roller, a supporting member and a biasing member are mounted on a bracket in advance, and the bracket is mounted on the moving member as an assembly, so that the work of mounting the roller and the like can be facilitated.

In the above, in the driving means, a motor for moving the moving member is mounted on the moving member, and a gear constituting a part of a power transmission path of the motor is supported on the bracket. It can be.

When the gear is mounted on the bracket, rollers can be assembled simply by attaching the bracket to the moving member, and the assembly of the power transmission path is completed.

For example, a pinion gear rotatably driven by the power of the motor is provided on the bracket, and a rack is provided in the case along the moving direction of the moving member, and the pinion gear rolls the rack. Thereby, the moving member is moved within the case.

Preferably, a cutout portion is provided on a side plate provided on the moving member to project the roller in the direction of the guide portion, and the bracket has a rising portion for supporting the gear, The bracket is attached to the moving member such that a roller and a support member intervene between the side plate and the rising portion.

According to this structure, when the roller and the power transmission path are assembled on the side of the moving member in a concentrated manner, it is only necessary to attach the bracket, and the assembling work is greatly simplified.

Further, according to the present invention, for example, a rotating unit having a display unit and / or an operating unit on a front surface is rotatably connected to the moving member, and the moving member is moved forward of a case. After the movement, the rotating portion is rotated in a standing posture in which the front surface is directed forward of the case in front of the case.

The moving member is not limited to the member supporting the rotating portion as described above.
It may move a recording medium such as a magneto-optical disk.

[0021]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIGS. 1, 2 and 3 are side views showing an on-vehicle electronic device according to an embodiment of the present invention according to operation, and FIG. 4 shows driving means for moving a moving member.
FIG. 5 is an exploded perspective view of FIG. 1 to FIG.
FIG. 6 is a partial plan view of FIG. 4, and FIG. 6 is a side view showing a rotating means for rotating the rotating part to a rising posture.

The on-vehicle electronic device shown in FIG. 1 and the following has a box-shaped case 10. The case 10 includes a metal housing 11 and a nose portion 12 attached in front of the housing 11.
It is composed of The housing 10 is a so-called 1DIN size, and is buried in a dashboard inside a vehicle.

The nose portion 12 has an operating portion 13 projecting from a lower half thereof, and an operating member 14 such as a push button is provided on the surface of the operating portion 13. A region above the operation portion 13 of the nose portion 12 is a projecting opening 10a of a rotating portion.

In the portion where the protruding opening 10a is formed, there is provided a moving member 15 which moves in and out of the case 10.

The tip of the moving member 15 has a rotating portion 16
Are rotatably connected by a connecting shaft 17. As shown in FIGS. 4 and 6, the rotating portion 16 is provided with a holding member 18 connected to the moving member 15 by the connecting shaft 17.
And a device body 20 having a back surface 20b fixed to the holding member 18. A display screen (display unit) 21 such as a liquid crystal display and various operation units 22 such as push buttons are arranged on a front surface 20 a of the device main body 20.

The case shown in FIG. 1 and subsequent figures is such that the case 10 has a size of 1 DIN, and the rotating portion 16 is accommodated in a substantially half area on the upper side of the case. Therefore, the thickness D1 of the rotating portion 16 shown in FIG. 1 and subsequent figures is substantially half the thickness D0 of the conventional rotating portion 3 shown in FIG.

FIG. 4 shows a driving means 30 for moving the moving member 15 in the front and rear direction in the case 10 (housing 11). FIG. 4 shows the vehicle-mounted electronic device upside down. 4 is the upper direction of the vehicle-mounted electronic device shown in FIGS. 1 to 3.

As shown in FIG.
a and 11b of the ceiling plate 11c.
A pair of guide members 31a and 31b are mounted opposite to each other at positions above the inner surfaces of a and 11b. The guide member 31a is formed with a groove 32a extending along the moving direction of the moving member 15, and similarly, the guide member 31b is formed with a groove 32b. A rack 33 extending along the moving direction of the moving member 15 is fixed to the inner surface (lower surface) of the ceiling plate 11c of the housing 11.

The moving member 15 is formed in a U-shape by a sheet metal material, and has side plates 15a and 15b and a ceiling plate 15c. A shaft hole 15d is drilled at the tip of the side plate 15a, and a shaft hole 15e is drilled at the tip of the side plate 15b. The connecting shafts 17 are fixed to both sides of a holding member 18 supporting the device main body 20 by the rotating portion 16, and the connecting shafts 17 are respectively provided in the shaft holes 15.
d and the shaft hole 15e rotatably supported.

Bearings 34 are fixed to the inner surfaces of both side plates 15a and 15b of the moving member 15, respectively.
A drive shaft 35 is rotatably supported between 34. A pinion gear 36 is fixed to the drive shaft 35. When the moving member 15 is assembled in the housing 11, the pinion gear 36 meshes with the rack 33.

A drive motor 37 is fixed to the ceiling plate 15c of the moving member 15, and a worm gear 38 is fixed to an output shaft of the drive motor 37. Ceiling board 15c
, A two-stage gear 39 is rotatably supported by a shaft 41. In this two-stage gear 39, a large-diameter gear 39a and a medium-diameter gear 39b are integrally formed. The large-diameter gear 39a meshes with the worm gear 38.

The compound gear 4 is provided beside the two-stage gear 39.
2 is rotatably supported by a shaft. Compound gear 42
The spur gear 42a and the bevel gear 42b are integrally formed. The spur gear 42a meshes with the medium-diameter gear 39b of the two-stage gear 39.

A guide device 40 according to the present invention is provided between the side plate 15a of the moving member 15 and the compound gear 42. The guide device 40 has a bracket 45 attached to the moving member 15. The bracket 45 is formed in a U-shape from a sheet metal material, and has a bottom plate 45 a and a side plate 45.
b, and a rising portion 45c parallel to the side plate 45b
have.

As shown in FIG. 5, a pair of mounting holes 46a and 46b are formed in the bottom plate 45a of the bracket 45. As shown in FIG. 5, the bracket 45 is attached to one of the side plates 4.
5b is positioned so as to be in intimate contact with the inner surface of the side plate 15a of the moving member 15, and mounting screws are inserted into the mounting holes 46a and 46b, so that the screw hole 15 of the ceiling plate 15c of the moving member 15
The bracket 45 is fixed to the ceiling plate 15c of the moving member 15 by being screwed to the f.

The rising portion 4 of the bracket 45
A compound gear 47 is rotatably supported by a shaft on the outer surface of 5c. This compound gear 47 is formed by integrally forming a spur gear 47a and a bevel gear 47b. As shown in FIG. 5, the bracket 45 is attached to the side plate 15 as described above.
When it is positioned and fixed in close contact with a, the spur gear 47a of the compound gear 47 mounted on the bracket 45 meshes with the pinion gear 36, and the bevel gear 47b meshes with the bevel gear 42b.

When the bracket 45 is attached as described above, the worm gear 3 provided on the output shaft of the motor 37
A power transmission path is formed to reach the pinion gear 36 through the eighth and second gears 39, the compound gear 42, and the compound gear 47.

A support shaft 51 is fixed to the bottom plate 45a of the bracket 45, and a support member 52 is rotatably supported by the support shaft 51. A U-shaped bent portion 52a is formed at the base of the support member 52, and shaft holes 53, 53 formed in upper and lower pieces of the bent portion 52a are rotatably supported by the support shaft 51. . Further, a torsion spring 56 is provided in the bent portion 52a so as to be externally inserted into the support shaft 51. As shown in FIG. 5, one arm 56a of the torsion spring 56 is hung on the inside of the side plate 45b of the bracket 45, and the other arm 56
b is hung on the support member 52. As a result, the support member 52 is constantly urged counterclockwise.

A roller 54 is rotatably supported by a shaft 55 at the tip of the support member 52. As shown in FIG. 5, the roller 54 is attached to the side plate 45b of the bracket 45.
From the notch portion 45d opening through the notch portion 15g formed in the side plate 15a of the moving member 15, and further projects outward.

When the moving member 15 is assembled to the housing 11, the roller 54 projecting from the notch 15g of the side plate 15a of the moving member 15 is driven by the guide member 31a in the housing 11.
Of the guide member 3 by the elastic force of the torsion spring (biasing member) 56.
Pressurized in the groove 32a of 1a. On the other hand, a rib 15h is formed on the outer surface of the rising portion 15b serving as the other side plate of the moving member 15, and the rib 15h is slidably inserted into the groove 32b of the guide member 31b.

As described above, when the moving member 15 is assembled in the housing 11, the rib 15h is moved to the groove 3 of the guide member 31b.
2b, the roller 54 is pressed into the groove 32a of the guide member 31a under the elastic pressure of the torsion spring 56. The rib 15h is pressed against the groove 32b of the guide member 31b by the reaction force of the pressing force with which the roller 54 is pressed into the groove 32a. As a result, the movement member 15 in the housing 11 is prevented from rattling. .

In the assembly process of the driving means 30, the moving member 1
5, a drive shaft 35, a pinion gear 36,
The compound gear 42, the second gear 39, and the drive motor 37 are assembled. On the other hand, a support member 52 having a roller 54, a torsion spring 56 as an urging member, and a compound gear 47 are attached to the bracket 45 in advance. This sub-assembly is installed on the ceiling plate 15c of the moving member 15,
When the side plate 45b and the side plate 15a are closely contacted and positioned, and the bracket 45 is fixed to the moving member 15, not only the roller 54 can be assembled, but also the power from the drive motor 37 to the pinion gear 36 by assembling the compound gear 47. The transmission path can be completed.

As shown in FIG. 5, in the moving member 15,
The compound gear 42 and the side plate 15a are very close.
By simply mounting the bracket 45 in the narrow area between the compound gear 42 and the side plate 15a, the assembly of the roller 54 and the assembly of the power transmission path can be completed.

FIG. 6 shows an example of the structure of the turning means 23 for turning the turning portion 16 to the upright posture with respect to the moving member 15. The rotating means 23 is disposed inside the side plate 15b of the moving member 15 shown in FIG.

In the rotating means 23, the holding member 18
The fixed gear 24 is provided on the side of the. The fixed gear 24 has a pitch circle centered on the connection shaft 17, and the fixed gear 24 is formed by fixing a member formed separately from the holding member 18 to the holding member 18. Alternatively, the fixed gear 24 is formed integrally with the holding member 18 by die casting or the like.

On the side plate 15b of the moving member 15, an intermediate gear 26 meshing with the fixed gear 24 is rotatably supported by a shaft 25. A pinion gear 28 meshing with the intermediate gear 26 is rotated by a shaft 27. It is freely supported. The moving member 15 has a motor 29 for rising and rotating drive.
The worm gear 29 a provided on the output shaft of the motor 29 meshes with the pinion gear 28.

In the housed state shown in FIG. 1, the rotating part 16 and the moving member 15 are housed in the case 10, and the tip of the rotating part 16 is slightly moved to a position where it is aligned with the operating part 13 of the nose part 12. It is protruding. From this state, the driving means 3 shown in FIG.
When the zero drive motor 37 is started, its rotational power is transmitted to the pinion gear 36 via the two-stage gear 39, the compound gear 42, and the compound gear 47. As the pinion gear 36 rolls on the rack 33, as shown in FIG. 2, the rotating portion 16 and the moving member 15 project forward from the projecting opening 10a.

When the motor 29 shown in FIG. 6 is started after the forward movement of the rotating portion 16 is completed, the rotating power is transmitted from the worm gear 29a to the fixed gear 24 via the pinion gear 28 and the intermediate gear 26, and the rotating gear is rotated. The part 16 rotates to the standing posture. Then, as shown by a broken line in FIG.
Is turned to the rising posture, the front surface 20a of the device main body 20 mounted on the rotating unit 16 is turned forward, the display screen 21 can be viewed from the front, and the operation unit 22 can be operated.

A rail may be formed on the guide member 31a, and a concave portion may be formed on the peripheral surface of the roller 54 so as to be fitted with the rail.

The guides 31a and 31b may be fixed to the side plates 11a and 11b of the housing 11,
The guide portions 31a, 31b may move forward on the inner surfaces of the side plates 11a, 11b. In this case,
When projecting the device body 20 from the inside of the housing 11, first, the guide portions 31a, 31b move forward along the side plates 11a, 11b, and then the moving member 15 is moved by the guide portion 31.
a and 31b move forward. And the rotation part 16 rotates to a standing posture. With this structure, the amount of movement of the moving member 15 forward of the housing 11 can be increased,
6 can be easily turned to the rising posture.

[0050]

As described above, according to the present invention, the moving member can move in the case without rattling. Further, since the roller to which the urging force is applied rolls on the guide portion in the case, the moving load of the moving member is small. Further, the roller can be assembled simply by assembling the bracket to the support member, and the power transmission path of the driving means for moving the moving member can be completed.

[Brief description of the drawings]

FIG. 1 is a side view showing an in-vehicle electronic device according to an embodiment of the present invention;

FIG. 2 is a side view showing a state in which a supporting portion and a rotating portion protrude from inside a case of the vehicle-mounted electronic device;

FIG. 3 is a side view showing a state in which a protruding rotating unit is rotated to a standing posture;

FIG. 4 is an exploded perspective view showing a driving unit for moving a moving member in an upside down direction;

FIG. 5 is a partial plan view showing the driving means and the guide device shown in FIG. 4;

FIG. 6 is a partial side view illustrating an example of a rotating unit that rotates the rotating unit to a standing posture;

FIG. 7 is a partial side view showing a conventional in-vehicle electronic device;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Case 10a Projection opening 11 Housing 12 Nose part 15 Moving member 15a, 15b Side plate 15c Ceiling plate 15g Notch part 16 Rotating part 17 Connecting shaft 18 Holding member 20 Main body 20a Front surface 23 Rotating means 30 Drive means 31a, 31b Guide member 32a, 32b Groove 36 Pinion gear 37 Drive motor 39 Two-stage gear 40 Guide device 42 Composite gear 45 Bracket 45a Bottom plate 45b Side plate 45c Rising portion 47 Composite gear 52 Support member 54 Roller 56 Torsion spring (biasing member)

Claims (6)

[Claims] 1. A case, a pair of guide portions provided at intervals in the case, a moving member supported on both sides by the guide portion and moving, and moving the moving member along the guide portion. In the electronic device provided with a driving means for moving, the moving member is provided with a roller for rolling at least one of the guides, and a supporting member rotatably supporting the roller is provided on the moving member. And a biasing member that biases the support member and presses the roller against the guide portion is provided. 2. A support member having the roller is rotatably supported on a bracket, and an urging member for urging the support member is mounted on the bracket, and the roller and the support member are provided. The moving member guide device according to claim 1, wherein a bracket to which the urging member is attached is attached to the moving member. 3. The driving means, wherein a motor for moving the moving member is mounted on a moving member, and a gear constituting a part of a power transmission path of the motor is supported on the bracket. 3. The moving member guide device according to 2. 4. A pinion gear rotatably driven by the power of the motor is provided on the bracket, and a rack is provided in the case along the moving direction of the moving member, and the pinion rolls on the rack. The moving member guide device according to claim 3, wherein the moving member is moved within the case. 5. A side plate provided on the moving member is provided with a cutout portion for projecting the roller in the direction of the guide portion, and the bracket is provided with a rising portion for supporting the gear, and The moving member guide device according to claim 3 or 4, wherein the bracket is attached to the moving member so that a support member intervenes between the side plate and the rising portion. 6. A rotating unit having a display unit and / or an operation unit on a front surface thereof is rotatably connected to the moving member, and the rotating member is moved forward after the moving member moves forward of the case. 6. The moving part is rotated to a standing posture in which the front face is directed forward of the case in front of the case.
The moving member guide device according to any one of the above.