JP3958060B2 - Display device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a display device that prevents generation of rattle noise from a display body.
[0002]
[Prior art]
As a display device in which the display main body is movable, the inventor of the present invention has proposed a display device and a driving method of the display device of Japanese Patent Application No. 2001-16259.
[0003]
In FIG. 8, the conventional in-vehicle navigation device 90 moves the display main body 80 from the position shown in FIG. 8A to stop the display main body 80 at the position shown in FIG. 8B. The CD (Compact Disc) insertion port 95 formed in the housing 91 appears on the front surface 92 side through the front hole 94, and the user inserts the CD into the CD insertion port 95 through the front hole 94. Can be made.
[0004]
Further, when the display main body 80 is moved from the position stopped at the position shown in FIG. 8A and the display main body 80 is stopped at the position shown in FIG. (Mini Disc) The insertion port 96 appears on the front surface 92 side, and the user can insert the MD into the MD insertion port 96 through the front hole 94.
[0005]
The conventional in-vehicle navigation device 90 is accommodated in a dashboard (not shown) of a vehicle, and the display main body 80 is normally stopped in FIG. In addition, the conventional in-vehicle navigation device 90 has not only a navigation function but also a TV function and an audio function.
[0006]
Here, the operation will be described taking as an example the case where the display main body 80 in the conventional display device is moved from the position shown in FIG. 8A to the position shown in FIG. 8B. When the user performs an operation for changing from the position shown in FIG. 8A to the position shown in FIG. 8B, the user is driven upward by electric or manual operation and moved to the position shown in FIG. 8B. The same applies when an operation for changing the position shown in FIG. 8A to the position shown in FIG. 8C is performed.
[0007]
When the display main body 80 in the conventional display device is located at the position shown in FIG. 8B or at the position shown in FIG. 8C, the display main body 80 protrudes from the housing 91 to the outside. However, since the dashboard of the vehicle is provided with a space through which the display main body 80 can protrude, even if the display main body 80 protrudes from the housing 91 to the outside, it collides with the dashboard of the vehicle. Never do.
[0008]
FIG. 9 schematically shows a configuration of a display main body 80 in a conventional display device. Pins 83 and 84 are implanted at predetermined positions on a side surface portion 82 of the display main body 80. And 84 are moved up and down along guide grooves 97 (see FIG. 10) installed in the side surface 93 of the housing 91 facing the side surface 82 of the display main body 80. Although not shown in FIG. 9, the pins 83 and 84 are provided not only on the side surface portion 82 of the display body 80 but also on the side surface portion of the display body 80 opposite to the side surface portion 82. .
[0009]
FIG. 10 is a diagram showing a trajectory when the pin 83 shown in FIG. 9 is moved up and down in the direction of arrow P along the guide groove 97 provided in the side surface portion 93 of the housing 91. As shown in FIG. 10, the guide groove 97 has a bird wing shape, and the pin 83 is stopped at the center, that is, at the stop position T, when the state shown in FIG. 8 is stopped at the upper end, that is, at the stop position S, the state shown in FIG. 8B, and when the pin 83 is stopped at the lower end, that is, at the stop position U, FIG. It will be in the state of c). The guide groove 97 is formed in a bird wing shape so that the display main body 80 and the front surface portion 92 of the housing 91 do not rub against each other while moving up and down in the direction of arrow P. This is to stably stop at a predetermined stop position.
[0010]
A spring force is entirely applied to the display body 80 by a coil spring, a leaf spring, or the like (not shown) on the front surface 92 side of the casing 91, that is, in the direction of the arrow Q. It is possible to stop stably at each stop position.
[0011]
In addition, when the display main body 80 is moved up and down in the direction of arrow P in FIG. 10, a mechanism for converting the rotation operation of a motor (not shown) mounted on a substrate (not shown) provided on the back side of the display main body into the raising and lowering operation. (Not shown) is moved up and down in the direction of arrow P so that the force in the direction of arrow R acts against the force in the direction of arrow Q against the spring force. In addition, FIG. 8 also shows that the force in the arrow Q direction and the force in the arrow R direction act when the display main body 80 is moved up and down in the arrow P direction.
[0012]
As described above, in the conventional display device, by applying a driving force substantially parallel to the display surface of the display body, the display body is moved back to the opposite side of the display surface compared to the stop position, and the display surface is moved to the display surface. It can be moved in a substantially parallel direction.
[0013]
[Problems to be solved by the invention]
However, in the conventional display device, since the spring force is biased to the entire display surface of the display body by a coil spring, a leaf spring, etc., there is a problem that a necessary space becomes large, Since it is difficult to apply a load to only a part of the moving object, there is a problem that the display main body is affected by mechanical vibration due to the movement of the vehicle and rattle noise (billing noise) is generated.
[0014]
Describing this, FIG. 11 is a diagram for explaining the principle that rattle noise (billing noise) occurs. FIG. 11 shows a state near the stop position T in the movement locus of the pin 83 shown in FIG. 10. When the pin 83 moves through the guide groove 97 and reaches the stop position T in the center, the pin 83 is shown in FIG. And the guide groove 97 are maximized.
[0015]
That is, in the conventional display device, the spring force is biased to the entire display surface of the display body by a coil spring, a leaf spring, or the like, so that the gap between the pin 83 and the guide groove 97 is maximized. Since the spring force cannot be applied to the pin 83 at the stop position T in the central portion, as a result, there is a problem that the occurrence of rattle noise (billing noise) cannot be avoided.
[0016]
Further, in the above conventional display device, when the pin moves from the stop position at the upper end to the stop position at the center, the display body is pushed forward by the spring force, the operating force, and its own weight, so there is no quality. There was a problem that it did not move smoothly.
[0017]
Therefore, an object of the present invention is to provide a display device in which the display main body is not affected by mechanical vibrations caused by movement of the vehicle and can prevent the occurrence of rattle noise.
[0018]
Another object of the present invention is to provide a display device that improves the quality when the pin moves from the stop position at the upper end to the stop position at the center so that the pin can move smoothly without rattling.
[0019]
[Means for Solving the Problems]
Display device of the present invention to solve the conventional problems described above comprises a display body movable, and a chassis member disposed on the back of the display main body, and a pressing means engaged with the prior SL chassis member The chassis member defines a trajectory when the display main body moves, and has a pin guide having a plurality of stop portions at which the display main body stops at both ends of the trajectory and at least one specific position in the middle of the trajectory. The display main body has a pin for moving the display main body along the pin guide, and the pressing means stops at a stop portion in the middle of the locus of the pin guide among at least the plurality of stop portions. In some cases, the pin is pressed against the pin guide so that the pin and the pin guide are kept in contact with each other.
[0020]
With this configuration, it is possible to apply a load to only a part of the moving object, so that rattle noise can be prevented.
[0021]
In the display device of the present invention, an elastic member is provided on the chassis member, and an elastic force of the elastic member is set in a direction opposite to a direction in which the weight of the display main body is added. The display is provided on the display body.
[0022]
With this configuration, it is possible to prevent a difference in quality due to a difference in operation direction when the display main body moves up and down (whether there is an influence of weight addition).
[0023]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0024]
(First embodiment)
Fig.1 (a) is a front view which shows the structure of the leaf | plate spring which concerns on the 1st Embodiment of this invention, FIG.1 (b) is the leaf | plate spring which concerns on the 1st Embodiment of this invention. It is a top view which shows a structure.
[0025]
In FIG. 1A, a leaf spring 10 as a pressing member is formed by punching a sheet metal, and uses a rolling direction of the sheet as a spring, and has a mountain shape near the tip along the surface of the sheet metal. A projection 11 is provided, and a hook 13 for engaging with a chassis member is provided at the center 12. And since this leaf | plate spring is used in order to prevent generation | occurrence | production of rattle noise (billing noise), even if the display main body receives the influence of the mechanical vibration by movement of a vehicle in the display apparatus of this invention, I will name it "Rattle Spring". The reason why the protrusion 11 is provided in the rattle spring 10 is to allow a partial load to be applied to the abutting member (for example, a pin). This will be described later.
[0026]
In FIG. 1B, since the portion other than the central portion 12 of the rattle spring 10 is bent toward the hook portion 13 and can be brought into close contact with the engaging chassis member, it is dropped during the operation of the display device of the present invention. Can be prevented.
[0027]
2 shows a state in which the rattle spring 10 shown in FIG. 1 is attached to the display device of the present invention. FIG. 2 (a) shows a state before the rattle spring 10 of FIG. 1 is attached in the display device of the present invention. FIG. 2B is a side view showing the state after the rattle spring 10 of FIG. 1 is mounted in the display device of the present invention.
[0028]
If the display device is operated without attaching the rattle spring 10 of FIG. 1 shown in FIG. 2 (a), it is difficult to apply a load to only a part of the operation portion as in the conventional display device. The display mounting plate assembly (in FIG. 2, which is behind the guide 2 fixed to the mechanical base 1 and corresponds to the display body of the conventional example, which will be described later) is affected by mechanical vibration caused by the movement of the vehicle, Rattle noise will occur.
[0029]
FIG. 2B is a side view showing the state after the rattle spring 10 of FIG. 1 is mounted. The hook 12 of the rattle spring 10 engages with the guide 2 fixed to the mechanical base 1 and guides the central portion 12. The fulcrum of the spring is formed so as to straddle the protrusion 6 provided on the surface 2. The guide 2 is provided with a stopper 7 at a predetermined position, so that a pre-tension can be hung on the rattle spring 10 and a load adjustment to the rattle spring 10 can be performed.
[0030]
The configuration of the display device of the present invention will be described with reference to FIG. 2. The guide 2 is provided with a bird wing-shaped pin guide (resinous) 3 as in the conventional example, and a display mounting plate assembly (in FIG. 2, a mechanical base 1). The pin 4 implanted in the back of the chassis-like guide 2 fixed to the front and corresponding to the display body of the conventional example, which will be described later, is moved up and down along the pin guide 3. FIG. 2 shows a state in which the pin 4 is stopped at the center of the pin guide 3. In this state, the apex of the mountain-shaped protrusion 11 provided on the rattle spring 10 abuts on the pin 4, and the load due to the spring force It will be in the state where it was hung to the maximum. In addition, a motor base assembly 5 is mounted on the mechanical base 1, and a display mounting plate assembly (described later) is moved up and down based on a rotation operation of a motor mounted on the motor base assembly 5.
[0031]
FIG. 3 is a partially broken front view showing a state after the rattle spring 10 of FIG. 1 is mounted, as in FIG. 2B, and a part thereof is enlarged to show the relationship between the rattle spring 10 and the pin 4. Is. In FIG. 3, a pin 4 implanted in the display mounting plate assembly 8 protrudes from the pin guide 3 provided on the guide 2, and a rattle spring 10 abuts against the pin 4.
[0032]
FIG. 4 explains the tension of the rattle spring 10 with respect to the movement locus of the pin 4 accompanying the operation of the display device of the present invention. In FIG. 4A, the pin 4 is at the lower end of the pin guide 3, and the tension of the rattle spring 10 is irrelevant to the pin 4. Therefore, the load of the rattle spring 10 is not hung on the pin 4 at all. The mechanical base 1 is shown in order to relatively indicate the tension of the rattle spring 10 and the mechanical base 1 and the rattle spring 10 are not related to each other.
[0033]
In FIG. 4B, the pin 4 moves out of the lower end of the pin guide 3 and moves upward. In the upper pin 4, the pin 4 comes into contact with the inner skirt of the mountain-shaped protrusion of the rattle spring 10, In the lower pin 4, the rattle spring 10 is in contact with the outer skirt portion of the mountain-shaped protrusion of the rattle spring 10, and shows a state in which the rattle spring 10 hangs a slight tension on the pin 4.
[0034]
4 (c) moves further upward than FIG. 4 (b). In the upper pin 4, the upper pin 4 comes into contact with the vicinity of the apex inside the mountain-shaped protrusion of the rattle spring 10, and the lower pin 4 shows a state in which the rattle spring 10 is in contact with the vicinity of the apex outside the mountain-shaped protrusion of the rattle spring 10 and the pin 4 is under tension that is slightly insufficient at the maximum value. When the pin 4 reaches this position, the pin 4 moves to the stop position so as to be called into the stop position at the center of the guide 3 by the operating force of the motor and the tension of the rattle spring 10.
[0035]
4 (d) moves further upward than FIG. 4 (c). In the upper pin 4, the upper pin 4 contacts the top of the mountain-shaped protrusion of the rattle spring 10, and the lower pin 4 In this case, the rattle spring 10 is in contact with the top of the mountain-shaped protrusion of the rattle spring 10 and the rattle spring 10 is hanging the maximum tension with respect to the pin 4. In this case, the pin 4 reaches the stop position at the center of the pin guide 3.
[0036]
FIG. 4 (e) shows that the pin 4 moves out of the stop position at the center of the pin guide 3 and moves upward, and in the upper pin 4, near the top on the outside of the mountain-shaped protrusion of the rattle spring 10. The lower pin 4 is in contact with the vicinity of the apex inside the mountain-shaped protrusion of the rattle spring 10, and the rattle spring 10 is tensioning the pin 4 slightly short of the maximum value. Is shown.
[0037]
4 (f) moves further upward than FIG. 4 (e), and the upper pin 4 contacts the outer skirt of the mountain-shaped protrusion of the rattle spring 10, and the lower pin 4 In this case, the rattle spring 10 is in contact with the inner skirt of the mountain-shaped protrusion of the rattle spring 10 and shows a state in which the rattle spring 10 has a slight tension applied to the pin 4.
[0038]
FIG. 4 (g) shows a state in which the pin 4 is located at the upper end of the pin guide 3 and the tension of the rattle spring 10 is irrelevant to the pin 4. Is. In this position, the load of the rattle spring 10 does not hang on the pin 4 at all.
[0039]
As described above, in the display device of the present invention, the maximum tension can be applied by the rattle spring 10 at the central stop position where the gap between the pin 4 and the pin guide 3 is maximized in the movement locus of the pin 4. It is possible, that is, by using the rattle spring 10, it becomes possible to apply a load to only a part of the moving object, so that rattle noise can be prevented. Further, the rattle spring 10 is constructed by punching a sheet metal, uses the rolling direction of the plate as a spring, and further engages the hook portion 13 with the top of the guide 2, so that it can be processed at low cost and is economical. In addition, the necessary space for installation can be reduced.
[0040]
(Second Embodiment)
FIG. 5A is a front view showing the configuration of the display apparatus according to the second embodiment of the present invention, and shows a schematic configuration of the display mounting plate assembly 8 (see FIG. 3). A display, for example, a TFT (Thin Film Transistor) liquid crystal is mounted on the upper surface, but is not shown. In FIG. 5A, the display mounting plate assembly 8 is moved up and down by the rotation operation of the motor mounted on the motor base assembly 5 (see FIGS. 2, 5B and 7). A joint assembly 51 for conversion is provided. Further, a U-shaped joint guide 52 is provided to which the joint portion is coupled when the joint assembly 51 rotates.
[0041]
FIG. 5B is a side view showing the configuration of the display device according to the second embodiment of the present invention. FIG. 5B shows the pin 4, the pin guide 3, and the rattle spring 10 that are implanted in the display mounting plate assembly 8, as shown in FIG. 2B. FIG. 5B shows a state in which the pin 4 is stopped at the center portion of the pin guide 3. In this state, the apex of the mountain-shaped protrusion 11 provided on the rattle spring 10 contacts the pin 4. It comes into contact with the maximum load due to the spring force. A motor base assembly 5 is mounted on the mechanical base 1, and the display mounting plate assembly 8 is moved up and down by converting the rotational operation of the motor mounted on the motor base assembly 5.
[0042]
FIG. 6 is a rear view showing the configuration of the display apparatus according to the second embodiment of the present invention, and shows a schematic configuration of the mechanical base 1. The motor base assembly 5 is mounted on the upper surface, but is not shown. In FIG. 6, the mechanical base 1 converts the rotational operation of the motor mounted on the motor base assembly 5 (not shown) into horizontal movement via the gear 63, and further converts the horizontal movement into the joint lever 61, the joint portion 67 and the figure. It converts into the raising / lowering operation | movement via the joint assembly 51 shown to 5 (a). A retaining ring 62 is provided so that the joint lever 61 does not fall off the mechanical base 1. Further, in order to mitigate the impact due to weight addition that occurs when the display mounting plate assembly 8 is operated from above to below, a coil spring 64 is provided, and both ends of the coil spring 64 are provided with a spring fixed end 65 provided on the mechanical base 1 and a joint lever 61. It is made to fix with the spring fixed end 66 provided in this.
[0043]
FIG. 7 is an operation diagram for explaining the principle of mitigating the impact due to weight addition that occurs when the display mounting plate assembly 8 is operated from above to below in the display device according to the second embodiment of the present invention. is there. A portion indicated by a dotted line shows one side of the joint assembly 51 on the back surface of FIG.
[0044]
In FIG. 7, a spring force acts in a direction indicated by an arrow 71 by a coil spring 64 fixed by a spring fixed end 65 provided on the mechanical base 1 and a spring fixed end 66 provided on the joint lever 61. In conjunction with this spring force, a force pulling the joint lever 61 acts in the horizontal direction indicated by the arrow 72. Further, a force that rotates the joint portion 67 of the joint lever 61 and the joint assembly 51 acts in the direction indicated by the arrow 73 in conjunction with the horizontal pulling force indicated by the arrow 72, and finally in the upward direction indicated by the arrow 74. A force for pulling up the joint assembly 51 is applied, and the impact due to the weight addition generated when the display mounting plate assembly 8 is moved from the upper side to the lower side is mitigated by the action of the upward pulling force.
[0045]
As described above, in the display device of the present invention, it is possible to prevent a difference in quality from occurring due to a difference in operation direction when the display main body moves up and down (whether there is an influence of weight addition).
[0046]
【The invention's effect】
As described above, according to the display device of the present invention, it is possible to apply a load to only a part of the moving object by the pressing means, so that there is an effect that the rattle noise can be prevented.
[Brief description of the drawings]
FIG. 1A is a front view showing a configuration of a leaf spring according to a first embodiment of the present invention. FIG. 1B is a top view showing a configuration of a leaf spring according to the first embodiment of the present invention. 2) (a) Side view showing the state before the leaf spring of FIG. 1 is attached. (B) Side view showing the state after the leaf spring of FIG. 1 is attached. [FIG. 3] Wearing the leaf spring of FIG. FIG. 4 is a partially broken front view showing a later state. FIG. 4 is a diagram for explaining the tension of a leaf spring with respect to an operation locus of a pin accompanying the operation of the display device of the present invention. FIG. 6B is a front view showing the configuration of the display device according to the second embodiment of the present invention. FIG. 6B is a side view showing the configuration of the display device according to the second embodiment of the present invention. FIG. 7 is a back view showing the configuration of the display device according to the embodiment. FIG. 7 shows a display according to the second embodiment of the invention. FIG. 8 is an operation diagram for explaining the principle of mitigating the impact due to weight addition that occurs when the display mounting plate assembly is operated from above to below in the play apparatus. FIG. 8B is an external perspective view of the navigation device shown in FIG. 8A with the display main body in the second position. FIG. 9 is an external perspective view of the navigation device with the display main body in the third position. FIG. 9 is an external perspective view of the display main body in the conventional display device. FIG. 10 is provided in the display main body of the conventional navigation device. The figure which shows the relationship between the locus | trajectory of a pin, and a guide groove. Figure of order DESCRIPTION OF SYMBOLS
1 Mechanical base (substrate)
2 Guide (chassis member)
3 Pin guide (resin)
4 pin 5 motor base assembly 6 protrusion 7 stopper 8 display mounting plate assembly 10 leaf spring (rattle spring)
DESCRIPTION OF SYMBOLS 11 Protrusion part 12 Center part 13 Hook part 51 Joint assembly 52 Joint guide 53 Connection screw 61 Joint lever 62 Retaining ring 63 Gear 64 Coil spring 65 Spring fixed end 66 Spring fixed end 67 Joint part 80 Display main body 81 Display surface 82 Side part 83 Pin 84 pin 90 navigation device (display device)
91 Housing 92 Front surface portion 93 Housing side surface portion 94 Front surface hole 95 CD insertion port 96 MD insertion port 97 Guide groove

Claims (10)

Defining a display body movable, and a chassis member disposed on the back of the display main body, before SL and a engaged pressing means to the chassis member, wherein the chassis member of the trajectories of said display body is moved And a pin guide having a plurality of stop portions at which the display body stops at at least one specific position in the middle of the locus, and the display body moves the display body along the pin guide. A pin for moving the pin, and the pressing means keeps the pin and the pin guide in contact with each other when at least one of the plurality of stop portions stops at a stop portion in the middle of the locus of the pin guide. A display device, wherein the pin is pressed against the pin guide. Display device according to claim 1, characterized in that the load on the pin by the pressing means in the middle of stoppage of the trajectory of the pin guide was made to be maximum.   2. The load according to claim 1, wherein when the display main body is stopped at an end portion of the pin guide among the plurality of stop portions, a load caused by the pressing means is prevented from hanging on the pin. 3. The display device according to 2. The pressing means is a leaf spring formed from a single plate, a contact portion of the leaf spring where the leaf spring and the pin are in contact has a mountain shape, and the pin is a locus of the pin guide. 4. The display device according to claim 1 , wherein the pin is in contact with the apex of the contact portion when positioned at a stop portion in the middle of the display. A pair of said pin guide, and a pressing member provided with a pair of pressing means to correspond to the pair of pin guides, provided with a central portion in said pressing member to the central portion in said pair of pin guides The display device according to claim 1 , wherein the display device is a display device. The plate spring corresponds to the pair of the pin guide, the center of the leaf spring includes a hook for engaging the chassis member forming the pin guide and the plate spring at central portion in the plate spring The display device according to claim 5, wherein a portion other than the portion is bent toward the hook portion.   The display device according to claim 6, wherein a protrusion is provided on the chassis member, and an operation fulcrum of the spring is formed by allowing a central portion of the leaf spring to straddle the protrusion.   The display device according to claim 7, wherein a stopper is provided at a predetermined position of the chassis member.   An elastic member is provided on the chassis member, and the elastic force of the elastic member is applied to the display main body in a direction opposite to the direction in which the weight of the display main body is applied. The display device according to claim 1. A control unit that controls the operation of the display body, the control unit including a joint lever that converts a rotation operation into a horizontal operation and further converts the horizontal operation into a vertical operation; the joint lever; and the chassis member; The display device according to claim 9, wherein the elastic member is provided between the two.

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