JP3688153B2 - Electronic device moving member guide device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to, for example, an electronic apparatus in which a moving member supporting a display member and an operation member moves in a case, and more particularly to a moving member guide device for moving the moving member.
[0002]
[Prior art]
FIG. 7 shows a partial side view of a conventional in-vehicle electronic device.
The case 1 has a box shape, and the case 1 is embedded in a dashboard or the like in a vehicle cabin. The front of the case 1 is an opening 1a. In the case 1, the moving member 2 moves from the inside of the case 1 to a position where it projects forward as shown in FIG. 7.
[0003]
A rotating part 3 is connected to the moving member 2 by a connecting shaft 4 so as to freely rotate. In the rotating part 3, a device body 5 having a display function and an operating function is supported on a bracket 3 a that is rotatably connected by the connecting shaft 4. A display unit and an operation unit are provided on the front surface 5 a of the device body 5. When the moving member 2 retreats into the case 1, the rotating unit 3 is accommodated in the case 1 with the horizontal posture shown in FIG. 7.
[0004]
When this electronic apparatus is used, the moving member 2 and the rotating unit 3 protrude forward from the opening 1a of the case 1 as shown in FIG. Thereafter, the rotating unit 3 is rotated upward with the connecting shaft 4 as a fulcrum, the front surface 5a of the device body 5 is directed forward, and the display unit provided on the front surface 5a can be viewed from the front of the case 1; In addition, the operation unit can be operated.
[0005]
[Problems to be solved by the invention]
However, in the electronic apparatus shown in FIG. 7, the moving member 2 moves back and forth in the case 1 while supporting the rotating portion 3 having a large weight, and therefore, between the guide portion in the case 1 and the moving member 2. If there is a clearance, the moving member 2 will rattle in the case 1. In particular, when the moving member 2 rattles due to body vibration or the like in a state where the rotating portion 3 protrudes forward of the case 1, the rotating portion 3 is greatly shaken. Further, a large noise is generated due to the rattling of the moving member 2.
[0006]
In order to prevent the rattling, it is common to provide a leaf spring on the moving member 2 and slide the leaf spring against the guide portion in the case 1 while being elastically pressed. However, with this means, the sliding of the leaf spring acts as a load when the moving member 2 moves. In addition, when used for a long time, there is a problem that the guide portion is scraped by the leaf spring, and the operation of the moving member becomes awkward.
[0007]
The moving member 2 needs to be equipped with a mechanism for moving the moving member 2, a mechanism for rotating the rotating unit 3, and the like, and mechanical parts are densely packed. In particular, when the thickness D0 of the rotating part 3 is reduced to make it thinner, the moving member 2 becomes thinner, and the mechanical parts are further densely packed in the moving member 2. In such a thin device, if a complicated mechanism that absorbs the movement of the moving member 2 other than the leaf spring is to be mounted on the moving member 2, the assembling work of the moving member 2 becomes more difficult.
[0008]
The present invention solves the above-mentioned conventional problems, and provides a moving member guide device for an electronic device having a structure that does not cause an excessive load as a mechanism for preventing the moving member from rattling in a case. It is aimed.
[0009]
Further, the present invention provides a moving member for an electronic device that can easily incorporate a mechanism for preventing the moving member from rattling, and that can cope with the density of mechanical parts on the moving member. The object is to provide a guidance device.
[0010]
[Means for Solving the Problems]
A moving member guide device according to the present invention includes a case, a pair of guide portions provided in the case with a gap therebetween, a moving member supported on both sides by the guide portion, and the moving member. In an electronic device provided with a driving means for moving along the part,
Wherein the moving member comprises a roller which rolls at least one of the guide portion, a support member for rotatably supporting said rollers, and a bracket for supporting the supporting member rotatably, it is mounted to the bracket said supporting member to bias, it is provided a biasing member for urging said roller to said guide portion,
The bracket to which the roller, the support member, and the biasing member are assembled is attached to the moving member .
[0011]
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 moving member can be prevented from rattling. Further, 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 the structure in which the roller is provided only on one side, the entire mechanical parts can be reduced, and the moving member can move smoothly in the case.
[0013]
Further, by mounting the roller, the support member, and the biasing member on the bracket in advance, and attaching the bracket to the moving member as an assembly, it is possible to easily attach the roller and the like.
[0014]
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. Can do.
[0015]
When the gear is mounted on a bracket, a roller or the like can be assembled simply by attaching the bracket to the moving member, and the assembly of the power transmission path is completed.
[0016]
For example, a pinion gear that is rotationally 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 when the pinion gear rolls on the rack, The moving member is moved in the case.
[0017]
Preferably, a side plate provided on the moving member is provided with a notch for projecting the roller in the direction of the guide, and the bracket is provided with a rising portion for supporting the gear, and the roller and the support. The bracket is attached to the moving member such that the member intervenes between the side plate and the rising portion.
[0018]
In this structure, when the roller and the power transmission path are assembled in a concentrated manner on the side of the moving member, it is only necessary to attach the bracket, and the assembling work becomes very simple.
[0019]
Further, in the present invention, for example, a rotating part having a display part and / or an operating part is rotatably connected to the moving member, and the moving member moves forward of the case. The rotating portion is rotated to a standing posture in which the front surface of the case is forward and the front surface is directed to the front of the case.
[0020]
The moving member is not limited to the one that supports the rotating portion as described above, and may be a member that moves a recording medium such as an optical disk or a magneto-optical disk in a case, for example.
[0021]
DETAILED DESCRIPTION OF THE INVENTION
1, 2, and 3 are side views showing in-vehicle electronic devices according to operation as an embodiment of the present invention, and FIG. 4 is a drive unit that moves a moving member. FIG. 5 is a partial plan view of FIG. 4, and FIG. 6 is a side view showing a rotating means for rotating the rotating portion to a standing posture.
[0022]
The in-vehicle electronic device shown in FIG. 1 and the following has a box-shaped case 10. The case 10 includes a metal casing 11 and a nose portion 12 attached to the front of the casing 11. The housing 10 has a so-called 1 DIN size, and is embedded in a dashboard in a car interior.
[0023]
The nose portion 12 has an operation portion 13 projecting from its lower half, and an operation member 14 such as a push button is provided on the surface of the operation portion 13. A region above the operation portion 13 of the nose portion 12 is a projecting opening 10a of the rotating portion.
[0024]
A moving member 15 that moves in and out of the case 10 is provided in a portion where the protruding opening 10a is formed.
[0025]
A rotating portion 16 is rotatably connected to a tip portion of the moving member 15 by a connecting shaft 17. As shown in FIGS. 4 and 6, the rotating portion 16 includes a holding member 18 connected to the moving member 15 by the connecting shaft 17, and a device main body 20 having a back surface 20 b fixed to the holding member 18. It is configured. A display screen (display unit) 21 such as a liquid crystal display and various operation units 22 such as push buttons are arranged on the front surface 20 a of the device body 20.
[0026]
In the case shown in FIG. 1 and subsequent figures, the case 10 has a 1DIN size, and the rotating portion 16 is accommodated in a substantially half region on the upper side of the case. Therefore, the thickness dimension D1 of the rotating part 16 shown in FIG. 1 and subsequent figures is almost half of the thickness dimension D0 of the conventional rotating part 3 shown in FIG.
[0027]
FIG. 4 shows driving means 30 for moving the moving member 15 in the front-rear direction in the case 10 (housing 11). FIG. 4 shows the in-vehicle electronic device upside down. 4 is the upward direction of the in-vehicle electronic device shown in FIGS.
[0028]
As shown in FIG. 4, the housing 11 has both side plates 11a and 11b, and a ceiling plate 11c, and a pair of guide members 31a and 31b are formed at positions above the inner surfaces of the side plates 11a and 11b. Are mounted opposite each other. A groove 32a extending along the moving direction of the moving member 15 is formed in the guide member 31a. Similarly, a groove 32b is formed in the guide member 31b. 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 11 c of the housing 11.
[0029]
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 in the tip of the side plate 15a, and a shaft hole 15e is drilled in the tip of the side plate 15b. The connecting shaft 17 is fixed to both side portions of the holding member 18 that supports the device main body 20 by the rotating portion 16, and the connecting shaft 17 is rotatable in the shaft hole 15d and the shaft hole 15e, respectively. It is supported by.
[0030]
Bearings 34 are fixed to the inner surfaces of both side plates 15 a and 15 b of the moving member 15, and a drive shaft 35 is rotatably supported between the bearings 34 and 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.
[0031]
A drive motor 37 is fixed to the ceiling plate 15 c of the moving member 15, and a worm gear 38 is fixed to the output shaft of the drive motor 37. A two-stage gear 39 is rotatably supported by a shaft 41 on the ceiling plate 15c. In the 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.
[0032]
On the side of the two-stage gear 39, a composite gear 42 is rotatably supported by a shaft. In the compound gear 42, a spur gear 42a and a bevel gear 42b are integrally formed. The spur gear 42 a meshes with the medium diameter gear 39 b of the two-stage gear 39.
[0033]
The guide device 40 of the present invention is provided between the side plate 15 a of the moving member 15 and the composite gear 42. The guide device 40 has a bracket 45 attached to the moving member 15. The bracket 45 is formed of a sheet metal material in a U-shape, and includes a bottom plate 45a, a side plate 45b, and a rising portion 45c parallel to the side plate 45b.
[0034]
As shown in FIG. 5, a pair of mounting holes 46 a and 46 b are formed in the bottom plate 45 a of the bracket 45. As shown in FIG. 5, the bracket 45 is positioned so that one side plate 45 b is in close contact with the inner surface of the side plate 15 a of the moving member 15, and mounting screws are inserted into the mounting holes 46 a and 46 b so that the ceiling plate of the moving member 15 is inserted. The bracket 45 is fixed to the ceiling plate 15c of the moving member 15 by being screwed into the screw holes 15f of the 15c.
[0035]
A composite gear 47 is rotatably supported by a shaft on the outer surface of the rising portion 45c of the bracket 45. This composite gear 47 is formed by integrating a spur gear 47a and a bevel gear 47b. As shown in FIG. 5, when the bracket 45 is positioned and fixed in close contact with the side plate 15a as described above, the spur gear 47a of the compound gear 47 mounted on the bracket 45 meshes with the pinion gear 36, The bevel gear 47b meshes with the bevel gear 42b.
[0036]
Thus, when the bracket 45 is attached, a power transmission path is formed from the worm gear 38, the two-stage gear 39, the composite gear 42, and the composite gear 47 provided on the output shaft of the motor 37 to the pinion gear 36. .
[0037]
A support shaft 51 is fixed to the bottom plate 45a of the bracket 45, and a support member 52 is rotatably supported on the support shaft 51. A U-shaped bent portion 52 a 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 52 a are rotatably supported by the support shaft 51. . A torsion spring 56 that is externally attached to the support shaft 51 is provided in the bent portion 52a. As shown in FIG. 5, one arm portion 56 a of the torsion spring 56 is hung on the inner side of the side plate 45 b of the bracket 45, and the other arm portion 56 b is hung on the support member 52. As a result, the support member 52 is always urged counterclockwise.
[0038]
A roller 54 is rotatably supported by a shaft 55 at the front portion of the support member 52. As shown in FIG. 5, the roller 54 protrudes outward from a notch 45 d opened in the side plate 45 b of the bracket 45 through the notch 15 g formed in the side plate 15 a of the moving member 15.
[0039]
In a state in which the moving member 15 is assembled to the housing 11, the roller 54 protruding from the notch 15g of the side plate 15a of the moving member 15 intervenes in the groove 32a of the guide member 31a in the housing 11, and the torsion spring The roller 54 is pressed into the groove 32a of the guide member 31a by the elastic force of the (urging member) 56. On the other hand, a rib 15h is formed to protrude from the outer surface of the rising portion 15b which is 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.
[0040]
As described above, when the moving member 15 is assembled in the housing 11, the rib 15h is inserted into the groove 32b of the guide member 31b, and the roller 54 receives the elastic force of the torsion spring 56 and is received in the groove 32a of the guide member 31a. Pressure contacted. 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, and as a result, rattling of the moving member 15 in the housing 11 is prevented. .
[0041]
In the assembly process of the drive means 30, the drive shaft 35, the pinion gear 36, the composite gear 42, the two-stage gear 39, and the drive motor 37 are assembled to the ceiling plate 15 c of the moving member 15. On the other hand, a support member 52 having a roller 54, a torsion spring 56 as a biasing member, and a composite gear 47 are attached to the bracket 45 in advance. When this subassembly is installed on the ceiling plate 15c of the moving member 15, the side plate 45b and the side plate 15a are positioned in close contact, and the bracket 45 is fixed to the moving member 15, not only can the roller 54 be assembled, By assembling the composite gear 47, a power transmission path from the drive motor 37 to the pinion gear 36 can be completed.
[0042]
As shown in FIG. 5, in the moving member 15, the compound gear 42 and the side plate 15a are very close to each other. The assembly of the roller 54 and the assembly of the power transmission path can be completed simply by mounting the bracket 45 in the narrow region between the composite gear 42 and the side plate 15a.
[0043]
FIG. 6 shows an example of the structure of the rotating means 23 for rotating the rotating part 16 to the standing posture with respect to the moving member 15. The rotating means 23 is disposed on the inner side portion of the side plate 15b of the moving member 15 shown in FIG.
[0044]
In the rotating means 23, a fixed gear 24 is provided on the side portion of the holding member 18. The fixed gear 24 has a pitch circle centered on the connecting shaft 17, and the fixed gear 24 is formed separately from the holding member 18 and is fixed to the holding member 18. Alternatively, the fixed gear 24 is formed integrally with the holding member 18 by die casting or the like.
[0045]
An intermediate gear 26 that meshes with the fixed gear 24 is rotatably supported on the shaft 25 on the side plate 15 b of the moving member 15, and a pinion gear 28 that meshes with the intermediate gear 26 is rotatably supported on the shaft 27. Has been. A motor 29 for driving to rise and rotate is mounted on the moving member 15, and a worm gear 29 a provided on the output shaft of the motor 29 meshes with the pinion gear 28.
[0046]
In the storage state shown in FIG. 1, the rotating portion 16 and the moving member 15 are stored in the case 10, and the tip portion of the rotating portion 16 slightly protrudes at a position aligned with the operation portion 13 of the nose portion 12. . When the drive motor 37 of the drive means 30 shown in FIG. 4 is started from this state, the rotational power is transmitted to the pinion gear 36 via the two-stage gear 39, the composite gear 42, and the composite 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 protrude forward from the protruding opening 10a.
[0047]
When the motor 29 shown in FIG. 6 is started after the rotation of the rotating unit 16 is completed, the rotational force is transmitted from the worm gear 29a to the fixed gear 24 through the pinion gear 28 and the intermediate gear 26, and the rotating unit 16 Rotates to a standing posture. Then, as shown by a broken line in FIG. 6, when the rotating unit 16 rotates to a standing posture, the front surface 20 a of the device main body 20 mounted on the rotating unit 16 is directed forward, and the display screen 21 is visually observed from the front. The operation unit 22 can be operated.
[0048]
A rail may be formed to protrude from the guide member 31a, and a recess that fits with the rail may be formed on the circumferential surface of the roller 54.
[0049]
Moreover, although the said guide parts 31a and 31b may be fixed to the side plates 11a and 11b of the housing | casing 11, even if the guide parts 31a and 31b move ahead on the inner surface of the said side plates 11a and 11b. Good. In this case, when the apparatus main body 20 is protruded from the housing 11, the guide portions 31a and 31b are first moved forward along the side plates 11a and 11b, and then the moving member 15 is moved to the guide portion 31a. , 31b to move forward. And the rotation part 16 rotates to a standing posture. With this structure, the amount of protrusion of the moving member 15 toward the front of the housing 11 can be increased, and the rotating portion 16 can be easily rotated to the standing posture.
[0050]
【The invention's effect】
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 as an embodiment of the present invention;
FIG. 2 is a side view showing a state in which a support part and a rotation part protrude from the case of an in-vehicle electronic device;
FIG. 3 is a side view showing a state in which the projecting rotation part is rotated to a standing posture;
FIG. 4 is an exploded perspective view showing the driving means for moving the moving member upside down;
5 is a partial plan view showing the drive means and the guide device shown in FIG.
FIG. 6 is a partial side view showing an example of a turning means for turning the turning 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 part 11 Housing | casing 12 Nose part 15 Moving member 15a, 15b Side plate 15c Ceiling board 15g Notch part 16 Rotating part 17 Connecting shaft 18 Holding member 20 Main part 20a Front surface 23 Rotating means 30 Driving means 31a, 31b Guide members 32a, 32b Groove 36 Pinion gear 37 Drive motor 39 Two-stage gear 40 Guide device 42 Compound gear 45 Bracket 45a Bottom plate 45b Side plate 45c Rising portion 47 Compound gear 52 Support member 54 Roller 56 Torsion spring (biasing member)

Claims (5)

A case, a pair of guide portions provided in the case with a space therebetween, a moving member that moves while being supported on both sides by the guide portion, and a drive unit that moves the moving member along the guide portion In electronic equipment provided with
Wherein the moving member comprises a roller which rolls at least one of the guide portion, a support member for rotatably supporting said rollers, and a bracket for supporting the supporting member rotatably, it is mounted to the bracket said supporting member to bias, it is provided a biasing member for urging said roller to said guide portion,
The moving member guide apparatus , wherein the bracket, to which the roller, the supporting member, and the biasing member are assembled, is attached to the moving member. Wherein the drive means, a motor for moving the moving member is mounted on a moving member, a gear which constitutes a part of a power transmission path of the motor, the moving member according to claim 1, characterized in that supported on said bracket Guide device. A pinion gear that is rotationally 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. When the pinion rolls on the rack, the moving member is The moving member guide apparatus according to claim 2 , which is moved in the case. The side plate provided on the moving member is provided with a notch for projecting the roller in the direction of the guide, the bracket is provided with a rising portion for supporting the gear, and the roller and the support member are provided on the side plate. The moving member guide apparatus according to claim 2 or 3 , wherein the bracket is attached to the moving member so as to intervene between the upper portion and the rising portion. A rotating part having a display part and / or an operating part is rotatably connected to the moving member, and after the moving member moves to the front of the case, the rotating part moves to the case. The moving member guide device according to any one of claims 1 to 4 , wherein the moving member guide device is rotated to a rising posture in which the front surface is directed forward of the case.