JP2001032821A - Tilt mechanism - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a strong tilt mechanism in which assembly operation is easy without generating abnormal sound during the period of tilting operation. SOLUTION: A cylindrical member 13 of a second unit 2 is fitted into a holding part 12 of a first unit 10, and a tilt shaft 14, two members 15a, 15b of which are respectively connected-fixed to the first unit 10 and the second unit 2, is incorporated in the cylindrical member 13. A notch part 19 for avoiding interference with a connection-fixed part of the tilt shaft 14 and the first unit 10, is formed in the second unit 2, and thus the second unit 2 can be tilted. A rotary member 21 having a blind plate 22 for closing the whole of an outer exposed part 20 of the cutout part 19, which appears due to the tilting operation of the second unit 2, is rotatably installed to the tilt shaft 14, and an interference member 23 interfering with the rotary member 21 on a tilting locus of the second unit 2, is provided. By interfering the interference member 23 with the rotary member 21, the rotary member 21 is rotated to close the whole of the outer exposed part 20 by the blind plate 22.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tilt mechanism used for adjusting a tilt of a liquid crystal display, for example.

[0002]

2. Description of the Related Art Conventionally, there is a tilt mechanism used for adjusting a tilt of a liquid crystal display, for example. FIG. 6 is an enlarged vertical sectional side view showing a tilt mechanism in a state where the liquid crystal display is in a vertical state, as an example of a conventional example applied to an information terminal having a tiltable liquid crystal display. This tilt mechanism will be described below with reference to FIG.

[0003] First, a liquid crystal display 10
2 is rotatably mounted. As the rotating structure, a holding portion 103 having a concave shape with a circular cross section is formed in the device main body 101, and an end portion of the liquid crystal display 102 has a cylindrical shape with a circular arc cross section that fits into the holding portion 103. A cylindrical member 104 is formed. And the cylindrical member 1
A tilt shaft 105 that rotatably connects the device main body 101 and the liquid crystal display 102 is built in the inside of the device 04. The tilt shaft 105 includes two members 106a and 106b that rotate coaxially and independently of each other, and has a structure in which the respective members 106a and 106b are connected and fixed to the device main body 101 and the liquid crystal display 102. is there. The tilt axis 105 has at least the liquid crystal display 102.
A mechanism (not shown) using a friction wheel is provided which can apply a resistance force to the two members 106a and 106b to the extent that the position can be fixedly held in any position. . Thereby, the liquid crystal display 1
02 is, for example, within the range from the vertical position to the horizontal position,
It can be tilted to any position.

[0004] Here, one member 106a of the tilt shaft 105 provided inside the cylindrical member 104 is connected to the main body 101 of the device unless a notch or an opening is formed in the cylindrical member 104. Can not. Therefore, a notch 107 is formed in the cylindrical member 104. In addition, the notch 107 extends over the entire tilt range of the liquid crystal display 102, and the one member 106 a of the tilt shaft 105
It must be formed so as not to interfere with the connection and fixed portion between the device and the device main body 101. Therefore, the notch 107 is
One member 106a of the tilt shaft 105 and the device main body 101
It is formed in a region including all the interference trajectories of the cylindrical member 104 over the entire tilt range of the liquid crystal display 102 with respect to the portion fixed to the connection.

Next, in the tilt mechanism illustrated in FIG.
The notch 107 formed in the cylindrical member 104 may be exposed to the outside depending on the tilt position of the liquid crystal display 102. Therefore, the cylindrical member 104 is covered with a film-like blind sheet 10 along the arc shape in cross-section so as to cover the externally exposed portion 107a of the notch 107.
8 is built-in. One end of the blind sheet 108 is connected to one member 106 a of the tilt shaft 105 and the apparatus body 10.
1 and is fixedly held by the connecting and fixing portion, and the other end is in a free state. Therefore, when the cutout portion 107 is exposed in response to the tilt operation of the liquid crystal display 102, the blind sheet 108 appears from the externally exposed portion 107a and covers the externally exposed portion 107a.

[0006]

In the tilt mechanism having the structure illustrated in FIG. 6, the blind sheet 108 may be deformed while the tilt operation of the liquid crystal display 102 is performed many times. In this case, with the tilt operation of the liquid crystal display 102, for example, one member 106b of the tilt shaft 105
Sheet 1 on the fixed part of the connection between LCD and liquid crystal display 102
There is a problem that the blindfold sheet 108 may generate abnormal noise when the deformed portion 08 hits.

[0007] The blind sheet 108 is provided with the notch 10
7 must be formed to a certain length in order to be able to reliably cover the outer exposed portion 107a. For this reason, for example, in the tilt mechanism illustrated in FIG. 6, the blind sheet 10 is extended to a portion where the one member 106 b of the tilt shaft 105 and the liquid crystal display 102 are connected and fixed.
8 has wrapped around. However, when such an arrangement relationship occurs, there is a problem that the assemblability of the tilt mechanism is extremely reduced, and the assembling work becomes difficult.

Further, since the blind sheet 108 is formed of a flexible sheet-like member, when the blind sheet 108 is pressed with a finger or the like from the outside exposed portion 107a of the notch 107, the blind sheet 1 is formed.
08 may be dented inward. In other words, there is also a problem that it is inferior in robustness against erroneous operations by the user.

Further, the apparatus main body 101 and the liquid crystal display 1
02 and the blindfold sheet 108 have slightly different textures and colors due to different materials, and it is difficult to provide a sense of unity in design between the device body 101 and the liquid crystal display 102 and the blindfold sheet 108. There are also problems.

An object of the present invention is to provide a tilt mechanism that does not generate abnormal noise during a tilt operation.

An object of the present invention is to provide a tilt mechanism that facilitates an assembling operation.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a robust tilt mechanism that is not damaged by a user's erroneous operation or the like.

An object of the present invention is to provide a technique that allows each part of the tilt mechanism to have a sense of unity in design.

[0014]

According to the first aspect of the present invention,
In a tilt mechanism for tiltably mounting a second unit to a first unit, a holding unit having a concave shape with a circular arc cross section formed in the first unit, and formed at an end of the second unit, A cylindrical member having a cylindrical shape with a circular cross section fitted to the holding portion; and two members provided inside the cylindrical member and rotatably provided coaxially with each other. A tilt axis in which three members are respectively connected and fixed to the first unit and the second unit, and an interference locus of the second unit over the entire tilt range with respect to a connection fixed portion between the tilt axis and the first unit. The tilt shaft including a cutout provided in the second unit in a region including the second unit, and a blind plate that covers an entire externally exposed portion of the cutout that appears with the tilt operation of the second unit. The rotatable member rotatably mounted and the rotary member interfere with the rotary member on the tilt trajectory of the second unit, and the entire externally exposed portion of the cutout that appears with the tilt operation of the second unit due to the interference is formed by the And an interference member for rotating the rotating member so as to close with the blind plate.

Therefore, the externally exposed portion of the cutout portion is generated with the tilting operation of the second unit, whereas the interference member interferes with the rotating member with the tilting operation of the second unit,
The rotating member rotates so that the entire outside exposed portion of the notch is closed by the blind plate. As a result, even if an externally exposed portion of the cutout appears, the entire externally exposed portion is closed by the blind plate.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to FIGS.

FIG. 1 is an overall perspective view showing an example of an information terminal 3 having a tiltable liquid crystal display 2 as an example of an electronic apparatus using the tilt mechanism 1 (see FIGS. 2 to 5). . The information terminal 3 is arranged, for example, in various stores and the like, with the liquid crystal display surface 4 side of the liquid crystal display 2 as a second unit facing the operator side and the opposite side facing the customer side. Input is allowed from the liquid crystal display 2 which also has Then, the liquid crystal display 2 as illustrated in FIG. 1 and FIG.
The liquid crystal display 2 can be tilted within a range up to a state where the liquid crystal display 2 is horizontal as exemplified in FIG.

FIG. 2 is an exploded perspective view of the tilt mechanism 1, FIG. 3 is an enlarged perspective view showing the rotating member 5, and FIG.
FIG. 5 is an enlarged longitudinal sectional view showing the tilt mechanism 1 in a state where the liquid crystal display 2 is in a horizontal state, and FIG. 5 is an enlarged longitudinal sectional view showing the tilt mechanism 1 in a state where the liquid crystal display 2 is in a horizontal state. As shown in FIG. 2, the liquid crystal display 2 is assembled integrally with a metal frame 8 and a liquid crystal display unit 9 between a back panel 6 and a front panel 7 molded with resin. Have been. The liquid crystal display unit 9
It has a well-known structure including a liquid crystal display panel (not shown) and its backlight unit as main components. Therefore, its explanation is avoided. The liquid crystal display 2 assembled as a unit is tiltably attached to a device main body 10 as a first unit of the information terminal 3. The housing 11 of the device main body 10 is also molded with resin.

The tilt mounting structure of the liquid crystal display 2 with respect to the device main body 10, that is, the pair of tilt mechanisms 1 will be described in detail. Since these tilt mechanisms 1 are configured as a pair of left and right and have the same structure, only one of the tilt mechanisms will be described below for convenience of explanation. First, the liquid crystal display 2 is rotatably attached to the device main body 10. As the rotating structure, a holding portion 12 having a concave shape having an arc-shaped cross section is integrally formed on the device main body 10 by molding, and an end portion of the liquid crystal display 2 having an arc-shaped cross section fitted to the holding portion 12 is formed. A cylindrical member 13 having a cylindrical shape is integrally formed by molding. Further, a tilt shaft 14 for rotatably connecting the device body 10 and the liquid crystal display 2 is built in the cylindrical member 13. The tilt shaft 14 includes two members 15a and 15b that rotate coaxially and independently of each other.
5b has a structure connected and fixed to the device main body 10 and the liquid crystal display 2. More specifically, a boss 16 for fixing one member 15a is formed on the holding portion 12 so as to protrude.
It is fixed by. Also, the other member 15b
Is firmly fixed by screws 18 to a metal frame 8 built in the liquid crystal display 2. And
The tilt shaft 14 has a mechanism capable of exerting a resistance force to the two members 15a and 15b at least so that the liquid crystal display 2 can hold the tilt position fixedly at any tilt position, for example, a friction wheel. (Not shown). Thereby, the liquid crystal display 2
Can be tilted to an arbitrary position within a range from a vertical position to a horizontal position, and can be fixedly held at that position.

Next, a notch 19 is formed in the cylindrical member 13.
Are formed. That is, the one member 15a of the tilt shaft 14 provided inside the cylindrical member 13 cannot be connected to the boss 16 of the device body 10 unless the cylindrical member 13 has a cutout or an opening. The notch 19 formed in the cylindrical member 13 has such a structure that the one member 15a and the boss 16 can be connected and fixed. The notch 19 has not only such a structure, but also a connection fixing portion between the one member 15a of the tilt shaft 14 and the device main body 10 over the entire tilt range of the liquid crystal display 2 from the vertical position to the horizontal position. The boss 16 which is also a function of preventing the cylindrical member 13 from interfering with each other. That is, the cutout portion 19 is formed in a region including the entire interference locus of the cylindrical member 13 over the entire tilt range of the liquid crystal display 2 with respect to the boss 16.

Next, in the tilt mechanism 1 of the present embodiment, the notch 19 formed in the cylindrical member 13 is exposed to the outside as the liquid crystal display 2 approaches the vertical position.
Therefore, a rotating member 21 is provided on the cylindrical member 13 so as to cover the externally exposed portion 20 of the notch 19. In other words, a rotating member 21 formed by resin molding as shown in FIG. 3 is rotatably attached to the tilt shaft 14 between one member 15a and the other member 15b. The rotating member 21 has a substantially L-shape, and a blind plate 22 that covers the externally exposed portion 20 of the cutout 19 is formed in one piece. This blindfold plate 22
Has a shape along the cross-sectional arc shape of the inner peripheral surface of the cylindrical member 13. An interference member 23 is integrally molded inside the cylindrical member 13 so that the exposed portion 20 of the notch 19 can be covered with the blind plate 22. That is, the interference member 23 is connected to the liquid crystal display 2.
Of the notch 19 appearing as the liquid crystal display 2 approaches the vertical position due to the interference with the blind plate 22. It is positioned so as to rotate the rotating member 21 so as to close it.

Further, as shown in FIG.
When the liquid crystal display 2 is held in a horizontal state in the frame 8 built in the camera, the blind plate 22 of the rotating member 21 is sandwiched between the one member 15a of the tilt shaft 14 with no margin. A second interference member 24 is formed. That is, the second interference member 24 moves on the moving trajectory of the cylindrical member 13 due to the tilt operation of the liquid crystal display 2,
When the liquid crystal display 2 is brought into a horizontal position by this interference, the blind plate 22 of the rotating member 21 is positioned so as to be tightly sandwiched between the one member 15a of the tilt shaft 14 and the other. ing.

Here, the dimensional relationship of each part will be described. First, the boss 16 is separated by a distance A from the edge E of the holder 12 where the externally exposed portion 20 of the notch 19 appears on the arc of the holder 12. Further, the maximum width of the externally exposed portion 20 of the notch 19 is set to a distance B smaller than the distance A on the arc of the outer peripheral surface of the cylindrical member 13. The width of the blind plate 22 on the circular arc of the holding portion 12 is set to a distance C smaller than the distance A and larger than the distance B on the circular arc of the inner peripheral surface of the cylindrical member 13.

As shown in FIG. 2, between the holding portion 12 on the device body 10 side and the cylindrical member 13 on the liquid crystal display 2 side, the device body 10 is A communication structure for allowing communication of a cable (not shown) between the liquid crystal display 2 and the liquid crystal display 2 is provided. This connecting structure is composed of a cable insertion hole 25 formed in the holding portion 12 and a T-shaped member 26 erected near the cable insertion hole 25.
And the cable insertion notch 2 formed in the cylindrical member 13
7, and the cable insertion notch 27 is fitted to the T-shaped member 26. Also, as the liquid crystal display 2 approaches the vertical position, the cable insertion notch 2
While the film 7 is exposed to the outside, a film-shaped blind sheet 28 that covers the exposed portion of the cable insertion notch 27 is fixed to the T-shaped member 26.

In such a configuration, the liquid crystal display 2
Can be tilted within a range from a vertical position to a horizontal position. Then, the two members 15a, 1a have a resistance to the extent that the tilt position provided on the tilt shaft 14 can be fixedly held.
The liquid crystal display 2 can be fixedly held at an arbitrary position after the tilt by a mechanism (not shown) using a mechanism that can exert an effect on the liquid crystal display 5b.

Next, as shown in FIG.
The notch 19 formed in the cylindrical member 13 is exposed to the outside as the position approaches the vertical position, and an externally exposed portion 20 is generated. On the other hand, when the tilt operation of the liquid crystal display 2 is performed in the vertical direction, the cylindrical member 1 is moved with the tilt operation.
3, the interference member 23 interferes with the rotating member 21,
The rotating member 21 is rotated. Thereby, the rotating member 21
The blind plate 22 formed integrally with the outer exposed portion 20
Completely block.

Then, as shown in FIG.
Is positioned horizontally, the rotating member 21 rotates by the weight of the blind plate 22 in accordance with the tilt operation of the liquid crystal display 2, and reaches a position in contact with one member 15 a of the tilt shaft 14. At this time, the blind plate 22 of the rotating member 21 is positioned between the one member 15a of the tilt shaft 14 and the second interference member 24 without any excess. Thus, even when the touch panel of the liquid crystal display panel of the liquid crystal display unit 9 is touch-operated or the information terminal 3 is carried, for example, the rotating member 21 has a play inside the cylindrical member 13. The noise caused by the noise is eliminated. Alternatively, according to tilt mechanism 1 of the present embodiment, tilt shaft 14 and rotating member 21
And a structure in which the rotating member 21 cannot rotate by its own weight with the tilting operation of the liquid crystal display 2 is allowed. This is because the second interference member 24 interferes with the rotating member 21 in accordance with the tilting operation of the liquid crystal display 2 in the horizontal direction, and the rotating member 21 is connected to the one member 15a of the tilt shaft 14 by the second member.
This is because it can be positioned in a state of being sandwiched between the interference member 24 without any margin.

According to the tilt mechanism 1 of the present embodiment, the rotating member 21 integrally provided with the blind plate 22 rotates quietly and smoothly as the liquid crystal display 2 tilts.
Also, since the blind plate 22 is a strong resin molded product,
It is extremely unlikely to be damaged such as deformation. Moreover, the rotating member 2
Since 1 is merely rotatably attached to the tilt shaft 14, its assemblability is good. Furthermore, the blindboard 2
The rotation member 21 integrally provided with the liquid crystal display 2 includes the back panel 6 and the front panel 7 of the liquid crystal display 2 and the device body 10.
Of the same resin as the housing 11 of FIG.
Therefore, it is easy to give a sense of unity in design between the device main body 10 and the liquid crystal display 2 and the blind plate 22.

[0029]

According to a first aspect of the present invention, there is provided a tilt mechanism for tiltably mounting a second unit with respect to a first unit, wherein the holding unit has a concave shape having an arc-shaped cross section formed in the first unit. A cylindrical member formed at an end of the second unit and having a cylindrical shape with a circular cross section fitted into the holding portion; and a cylindrical member provided inside the cylindrical member and rotatable coaxially with each other. And a tilt shaft connected to and fixed to the first unit and the second unit, respectively, and a fixed portion connected to the tilt shaft and the first unit. A notch provided in the second unit in an area including an interference locus of the second unit over the entire tilt range, and a whole of an externally exposed portion of the notch that appears with the tilt operation of the second unit. A rotation member rotatably attached to the tilt shaft having a blind plate closing the rotation member, and the rotation member interferes with the rotation member on a tilt trajectory of the second unit, and the interference appears along with the tilt operation of the second unit due to the interference. An interference member that rotates the rotating member so as to cover the entire externally exposed portion of the cutout with the blind plate, so that even if the externally exposed portion of the cutout appears along with the tilt operation of the second unit, The entirety of the externally exposed portion can be closed with a blind plate. At this time, since the rotating member integrally provided with the blind plate rotates quietly and smoothly with the tilt operation of the second unit, it is possible to reduce noise caused by the tilt operation of the second unit. Further, since the blind plate does not need to be a flexible member such as a film, breakage such as deformation is extremely unlikely to occur, and a strong tilt device can be realized. In addition, since the rotating member is merely rotatably mounted on the tilt shaft, the assemblability can be improved and the assembling operation can be facilitated. Further, since the blind plate can be easily formed of the same member as the first unit and the second unit, it is possible to give a sense of unity in design between the first unit and the second unit.

[Brief description of the drawings]

FIG. 1 is an overall perspective view showing an example of an information terminal having a tiltable liquid crystal display as an example of an electronic device using a tilt mechanism according to an embodiment of the present invention.

FIG. 2 is an exploded perspective view of a tilt mechanism portion.

FIG. 3 is an enlarged perspective view showing a rotating member.

FIG. 4 is an enlarged longitudinal side view showing a tilt mechanism in a state where the liquid crystal display is in a vertical state.

FIG. 5 is an enlarged longitudinal side view showing a tilt mechanism in a state where the liquid crystal display is in a horizontal state.

FIG. 6 is an enlarged longitudinal side view showing a tilt mechanism in a state where the liquid crystal display is in a vertical state, as an example of a conventional example applied to an information terminal having a tiltable liquid crystal display.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 1st unit (device main body) 2 2nd unit (liquid crystal display) 12 Holding part 13 Cylindrical member 15a, 15b Two members 14 Tilt axis 19 Notch part 22 Blind board 21 Rotating member 23 Interference member

Claims (1)

[Claims] 1. A tilt mechanism for tiltably mounting a second unit with respect to a first unit, a holding portion having a concave shape having an arc-shaped cross section formed in the first unit, and an end of the second unit. And a cylindrical member having a cylindrical shape with a circular cross section fitted into the holding portion; and two members provided inside the cylindrical member and provided rotatably on the same axis. A tilt shaft provided with these two members connected and fixed to the first unit and the second unit, respectively; and the second shaft extending over the entire tilt range with respect to a connection fixed portion between the tilt shaft and the first unit. A notch provided in the second unit in a region including an interference locus of the unit; and a blind plate closing an entire externally exposed portion of the notch that appears with the tilt operation of the second unit. A rotating member rotatably attached to the tilt shaft; and an interference with the rotating member on a tilt trajectory of the second unit, and an external exposure of the notch that appears with the tilt operation of the second unit due to the interference. A tilting mechanism comprising: an interference member that rotates the rotating member so as to cover the entire portion with the blind plate.