JP4904901B2 - In-vehicle electronic device guide structure and in-vehicle electronic device - Google Patents

Description

  The present invention relates to a guide structure for an in-vehicle electronic device and an in-vehicle electronic device.

  In an in-vehicle electronic device such as a car navigation system, a car audio, and an in-vehicle television, a display panel is provided on the front surface of the electronic device main body. In order to improve the visibility of the display screen of the display panel, a technique for moving the display panel backward so that the display surface of the display panel faces upward has been developed. Specifically, as shown in FIGS. 1 and 2, the roller 30 provided at the top of the display panel 20 is guided up and down by a guide groove 51 provided in the vertical direction, and the slider 24 is rotated at the bottom of the display panel 20. The slider 24 is slid forward and backward by a guide rail 25 provided in the front-rear direction (see, for example, Patent Document 1).

  FIG. 5 is a sectional view showing a conventional guide structure in which the roller 130 engages with the guide groove 151. The roller 130 is rotatably attached to a shaft 138 projecting from the upper part of the left and right side surfaces of the display panel 120. A tapered portion 132 is provided on the outer peripheral portion at the tip of the roller 130. The roller 130 is urged toward the left and right sides of the display panel 120, that is, toward the guide groove 151 by a spring 139 provided between the roller 130 and the display panel 120.

A contact portion 153 that contacts the tapered portion 132 of the roller 130 is provided between the front side surface 152 and the bottom surface 154 of the guide groove 151. Since the contact portion 153 is inclined with respect to the shaft 138, the roller 130 moves backward along the contact portion 153 by the resultant force of the urging force of the spring 123 and the stress received by the tapered portion 132 from the contact portion 153. It is urged to the side. For this reason, the side surface 137 of the roller 130 is in contact with the rear side surface 155 of the guide groove 151, so that there is no rattling between the roller 130 and the guide groove 151, and the panel 120 does not move even if vibration is applied by running of the vehicle. It can suppress the rattling.
JP 2003-243842 A

  However, in the above structure, since the roller 130 receives the rotational force in the opposite direction from the contact portion 153 and the front side surface 155 of the guide groove 151, the roller 130 is difficult to rotate. Further, when the roller 130 rotates in one direction, one of the tapered portion 132 or the side surface 137 of the roller 130 follows the contact portion 153 or the front side surface 155 of the guide groove 151, and the other is the contact portion 153 or There is a problem that the guide groove 151 rubs against the front side surface 155 and wears.

  The subject of this invention is providing the guide structure for vehicle-mounted electronic devices and vehicle-mounted electronic devices which can prevent abrasion of a roller, preventing the rattling of a roller and a guide groove.

In order to solve the above- described problems, the invention according to claim 1 is directed to an in-vehicle electronic device in which a front panel can be displaced with respect to a main body, a shaft provided perpendicular to a side surface of the front panel, and the shaft. rotatably provided for a first roller to taper unit that reduced diameter to the tip end side is formed, and a second roller rotatably provided relative to the first roller, the front panel of the body A guide groove having a first abutting portion on which the tapered portion of the first roller abuts and a second abutting portion on which the side surface of the second roller abuts, and a guide groove provided on a surface facing the side surface of the first roller, And a biasing member that biases the second roller toward the second abutting portion, and the second abutting portion includes the first abutting portion. automotive electronic apparatus characterized Rukoto provided on the opposite side via the shaft and It is an internal structure.

According to a second aspect of the present invention, there is provided a front panel, a slider rotatably connected to a lower side of the front panel, a main body to which a guide for guiding the slider back and forth is fixed, and an upper side of the panel. A guide structure that guides up and down, and the guide structure is provided on the upper portion of the front panel, with a shaft provided perpendicular to the side surface, and rotatably provided with respect to the shaft. a first roller which tapered portion is formed to be reduced diameter, and a second roller rotatably provided relative to the first roller, before SL provided on the surface facing the side surface of the front panel of the body, the A guide groove having a first contact portion that contacts the tapered portion of the first roller and a second contact portion that contacts a side surface of the second roller, and biases the first roller to the first contact portion. And the second roller is moved to the second contact An urging member for urging the parts, Tona is, the second contact portion, the vehicle-mounted electronic apparatus characterized Rukoto provided on the opposite side via the shaft and the first contact portion It is.

  According to the present invention, the first roller and the second roller are guided along the taper angle by the urging force of the urging material by the taper portion of the first roller abutting on the first abutting portion, and the second roller Is in contact with the second contact portion, so that the play between the roller and the guide groove can be prevented. In addition, since the first roller that contacts the first contact portion is provided rotatably with respect to the second roller that contacts the second contact portion, it is possible to prevent the rollers from being worn.

  The best mode for carrying out the present invention will be described below with reference to the drawings. However, although various technically preferable limitations for implementing the present invention are given to the embodiments described below, the scope of the invention is not limited to the following embodiments and illustrated examples.

<First Embodiment>
1 and 2 are side views of the in-vehicle electronic device 1. As shown in FIGS. 1 and 2, the in-vehicle electronic device 1 includes a display panel 20 as a front panel, and a chassis having side plates 50 arranged on the left and right of the display panel 20.

The main body of the in-vehicle electronic device is attached to the chassis between the left and right side plates 50. In FIGS. 1 and 2, the side plate 50 is indicated by a two-dot chain line in order to make the drawings easier to see, but in reality, the member indicated by the two-dot chain line is disposed on the front side of the drawing with respect to the member indicated by the solid line. Has been.
A guide rail 25 extending in the front-rear direction is provided on the inner surface of the side plate 50 and below the surface. In addition, a guide groove 51 extending in the vertical direction is recessed in the front surface of the side plate 50 and a first contact portion 53 extending in the vertical direction along the guide groove 51. (See FIG. 3) is extended. The display panel 20 is attached between the left and right side plates 50 by the guide rail 25, the guide groove 51, and the first contact portion 53.

The display panel 20 is a liquid crystal display panel, and the front surface of the display panel 20 is a display screen 21.
A shaft 23 protrudes from the lower portions of the left and right side surfaces of the display panel 20, the shaft 23 is inserted into the front portion of the slider 24, and the slider 24 is rotatably provided with respect to the shaft 23. The slider 24 extends forward and backward, and is provided so as to be movable forward and backward along the guide rail 25 by being guided by the guide rail 25. The slider 24 is moved back and forth by a drive mechanism such as a motor (not shown).

Rollers 30 are attached to the upper portions of the left and right side surfaces of the display panel 20, and the rollers 30 are provided so as to be movable up and down along the guide grooves 51.
Hereinafter, the guide structure in which the roller 30 engages with the guide groove 51 and the first contact portion 53 will be described in detail.

  FIG. 3 is a sectional view showing a guide structure according to the present invention. The roller 30 includes a first roller 31 and a second roller 34. As a material of the first roller 31 and the second roller 34, for example, POM (polyoxymethylene) resin or the like can be used.

A tapered portion 32 that decreases in diameter toward the distal end side is formed at the distal end portion of the first roller 31. The tapered portion 32 abuts on a first abutting portion 53 provided along the guide groove.
At the rear end of the first roller 31, a recess 33 in which the spring 39 is accommodated is provided.
The spring 39 is a coil spring provided between the first roller 31 and the display panel 20, and a shaft 38 is inserted in the center. The spring 39 urges the first roller 31 toward the left and right sides of the display panel 20, that is, toward the guide groove 51.

The second roller 34 is attached so as to be rotatable with respect to a shaft 38 protruding from the upper portions of the left and right side surfaces of the display panel 20. The second roller 34 has a cylindrical shape, and includes a diameter-expanded portion 35 on the tip side and a diameter-reduced portion 36 on the display panel 20 side.
The enlarged diameter portion 35 is inserted into the guide groove and guides the roller 30 in the vertical direction along the guide groove 51.
A first roller 31 is rotatably attached to the reduced diameter portion 36.

  The guide groove 51 is an inner surface of the side plate 50 and is recessed in the vertical direction at the front portion of the surface. The second roller 34 is inserted into the guide groove 51. The front side surface of the guide groove 51 serves as a second contact portion 52 with which the side surface 37 of the second roller 34 contacts, as will be described later.

  A first contact portion 53 that extends in the vertical direction along the guide groove 51 extends from the rear of the guide groove 51 and on the display panel 20 side. The first contact portion 53 is inclined at the same angle as the taper angle of the taper portion 32 with respect to the shaft 38 from the rear center side where the main body is located toward the front side.

  As the material of the guide groove 51 and the first contact portion 53 of the side plate 50, for example, ABS (acrylonitrile-butadiene-styrene) resin, PPS (polyphenylene sulfide) resin, or the like can be used.

  In the state in which the second roller 34 is inserted into the guide groove 51, the first roller 31 is biased to the side, that is, the guide groove 51 side by the spring 39, so that the biasing force of the spring 39 and the tapered portion 32 are the first. The first roller 31 is urged forward and laterally along the first contact portion 53 by the resultant force with the stress received from the first contact portion 53. For this reason, the side surface 37 of the second roller 34 contacts the second contact portion 52.

  Thus, since the tapered portion 32 of the first roller 31 contacts the first contact portion 53 and the side surface 37 of the second roller 34 contacts the second contact portion 52, the roller 30 and the guide groove 51 There is no shakiness, and shakiness of the panel 20 can be suppressed even if vibration is applied by running of the vehicle.

Next, the operation of the in-vehicle electronic device 1 will be described.
When the slider 24 is moved forward by the drive mechanism, the roller 30 is moved downward along the guide groove 51 and the first contact portion 53, whereby the display panel 20 is moved backward so that the display screen 21 faces upward. Defeat. On the other hand, when the slider 24 is moved rearward by the driving mechanism, the roller 30 is moved upward along the guide groove 51 and the first contact portion 53, so that the display panel 20 faces the display screen 21 forward. To stand up.

  Here, since the 1st roller 31 is rotatably attached to the diameter reducing part 36 of the 2nd roller 34, both can rotate in the opposite direction. Accordingly, the second roller 34 rotates so that the side surface 37 follows the second contact portion 52, the first roller 31 rotates so that the tapered portion 32 follows the first contact portion 53, and the second roller 34 and the first roller 31 rotate in opposite directions. For this reason, the second roller 34 and the first roller 31 are not rubbed against the second contact portion 52 and the first contact portion 53 and worn.

  Moreover, since the 1st contact part 53 inclines at the same angle as the taper angle of the taper part 32, the contact area of the 1st contact part 53 and the taper part 32 is large, and wear can be reduced. Note that the first abutment portion 53 does not necessarily have to be inclined as long as the first abutment portion 53 and the tapered portion 32 can be prevented from wearing.

Second Embodiment
FIG. 4 is a sectional view showing a guide structure according to the second embodiment of the present invention. In this embodiment, the forms of the roller 30 and the guide groove 51 are different.

The roller 30 of this embodiment includes a first roller 31 and a second roller 34.
The first roller 31 is attached so as to be rotatable with respect to a shaft 38 protruding from the upper portions of the left and right side surfaces of the display panel 20. A tapered portion 32 that decreases in diameter toward the distal end side is formed at the distal end portion of the first roller 31. The tapered portion 32 abuts on a first abutting portion 53 provided along the guide groove.
A reduced diameter portion 36 is provided at the rear end portion of the first roller 31. A second roller 34 is rotatably attached to the reduced diameter portion 36.

  The second roller 34 is rotatably attached to the reduced diameter portion 36 of the first roller 31. A concave portion 33 in which a spring 39 is accommodated is provided at the rear end portion of the second roller 34. The spring 39 urges the first roller 31 and the second roller 34 to the left and right sides of the display panel 20, that is, toward the guide groove 51.

  The guide groove 51 is an inner surface of the side plate 50 and is recessed in the vertical direction at the front portion of the surface. The first roller 31 and the second roller 34 are inserted into the guide groove 51. A front side surface of the guide groove 51 serves as a second contact portion 52 with which the side surface 37 of the second roller 34 contacts.

  A first abutment portion 53 extending in the up-down direction is provided at the rear portion of the guide groove 51. The first contact portion 53 is inclined at the same angle as the taper angle of the taper portion 32 with respect to the shaft 38 from the rear center side where the main body is located toward the front side.

  In a state in which the first roller 31 and the second roller 34 are inserted into the guide groove 51, the first roller 31 is biased to the side, that is, the guide groove 51 side by the spring 39. The first roller 31 is urged forward and laterally along the first contact portion 53 by the resultant force with the stress that the tapered portion 32 receives from the first contact portion 53. For this reason, the side surface 37 of the second roller 34 contacts the second contact portion 52.

  Thus, since the tapered portion 32 of the first roller 31 contacts the first contact portion 53 and the side surface 37 of the second roller 34 contacts the second contact portion 52, the roller 30 and the guide groove 51 There is no shakiness, and shakiness of the panel 20 can be suppressed even if vibration is applied by running of the vehicle.

  Here, since the second roller 34 is rotatably attached to the reduced diameter portion 36 of the first roller 31, both can rotate in the opposite direction. Accordingly, the second roller 34 rotates so that the side surface 37 follows the second contact portion 52, the first roller 31 rotates so that the tapered portion 32 follows the first contact portion 53, and the second roller 34 and the first roller 31 rotate in opposite directions. For this reason, similarly to the first embodiment, the second roller 34 and the first roller 31 do not rub against the second contact portion 52 and the first contact portion 53 and wear out.

  The present invention is not limited to the above embodiment, and various improvements and design changes may be made without departing from the spirit of the present invention. For example, in the above embodiment, the first roller 31 is provided on the outer peripheral portion of the second roller 34. However, the first roller 31 and the second roller 34 are provided so as to be rotatable with respect to the shaft 38 independently. May be.

It is a side view of the vehicle-mounted electronic device 1 in the state which the display surface of the display panel faced forward. It is a side view of the vehicle-mounted electronic device 1 in the state which the display surface of the display panel faced diagonally upward and forward. It is sectional drawing which shows the guide structure which concerns on 1st Embodiment of this invention. It is sectional drawing which shows the guide structure which concerns on 2nd Embodiment of this invention. It is sectional drawing which shows the conventional guide structure.

Explanation of symbols

20 Display panel (front panel)
31 First roller 32 Tapered portion 34 Second roller 39 Spring (biasing material)
52 2nd contact part 53 1st contact part

Claims (2)

In in-vehicle electronic devices where the front panel can be displaced relative to the main body,
An axis provided perpendicular to the side of the front panel;
A first roller provided rotatably with respect to the shaft and having a tapered portion that decreases in diameter toward the tip side;
A second roller provided rotatably with respect to the first roller ;
Provided surface facing the side surface of the front panel of the body, the guide groove having a second contact portion side abuts the first abutment portion and the second roller tapered portion of the first roller is in contact When,
A biasing member that biases the first roller toward the first contact portion and biases the second roller toward the second contact portion;
Equipped with a,
The second contact portion, the guide structure for automotive electronic apparatus characterized Rukoto provided on the opposite side via the shaft and the first contact portion. A front panel;
A slider rotatably connected to the lower side of the front panel;
A main body to which a guide for guiding the slider back and forth is fixed;
A guide structure for guiding the upper side of the panel up and down,
The guide structure is
An axis provided perpendicular to the side surface at the top of the front panel;
A first roller provided rotatably with respect to the shaft and having a tapered portion that decreases in diameter toward the tip side;
A second roller provided rotatably with respect to the first roller ;
Provided surface facing the side surface of the front panel before Symbol body, guide having a second contact portion side abuts the first abutment portion and the second roller tapered portion of the first roller is in contact Groove,
A biasing member that biases the first roller toward the first contact portion and biases the second roller toward the second contact portion;
Tona is,
The second contact portion, the vehicle-mounted electronic apparatus characterized Rukoto provided on the opposite side via the shaft and the first contact portion.

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