JP4219572B2 - Retractable display device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a retractable display device, and more particularly to a retractable display device suitable for a vehicle-mounted display device that is required to be compact.
[0002]
[Prior art]
Conventionally, a flat display screen (hereinafter referred to as a monitor) is stored in a storage case when not in use, and when used, it is ejected from the storage case to the front side to stand up to execute a screen display operation. Display devices and the like are known.
[0003]
In this type of retractable display device, for example, a tray that can slide back and forth with respect to the case of the device main body is provided, and a monitor is pivotally hinged to the tray, and the tray is ejected and stored. There is provided a so-called automatic insertion / extraction mechanism that automatically performs a sliding operation in the direction of turning and a display turning operation for directing the monitor screen toward the vehicle occupant.
[0004]
[Problems to be solved by the invention]
However, in the above-described conventional storage type display device, when the monitor storage space is limited, for example, when it is installed with a disk drive in a so-called 1DIN deck size navigation device, the automatic insertion / extraction mechanism is provided. If provided, high-cost actuators are employed, and a complicated mechanism using high-precision mechanism parts is unavoidable, leading to problems of high cost and reduced reliability.
[0005]
On the other hand, the insertion / extraction operation of the monitor, that is, the operation of inserting the display screen portion into the case or discharging it forward from the case can be performed manually, but in that case, during the insertion / extraction of the display screen portion It is important how to hold the horizontal posture and lock the slide mechanism when the discharge is completed.
[0006]
Therefore, the present invention allows the display screen unit to be manually inserted and ejected, and the low-cost storage capable of reliably holding the horizontal posture during insertion and removal of the monitor and locking the slide operation when the ejection is completed. A type display device is provided.
[0007]
[Means for Solving the Problems]
In order to solve the above-described problems, a retractable display device according to the present invention includes a display screen unit that is removably accommodated in a case, and rotatably supports the display screen unit, and an insertion / ejection direction with respect to the case. A movable support member slidably supported on the case, and a lock mechanism interposed between the case and the movable support member, the lock mechanism receiving an operation force from the display screen unit, And a responsive displacement member that is supported by the movable support member so as to be displaceable and is displaced in accordance with a slide position of the movable support member in the protruding and retracting direction with respect to the case. When the second pivot position is taken from the ejected first pivot position, the slide of the movable support member with respect to the case is locked, and the operation member moves the display screen forward. An operation force is received from the display screen unit when the first rotation position falls from the second rotation position in the opposite direction and the operation is performed when the display screen unit takes the first rotation position. The lock mechanism is unlocked by a member, and when the display screen is raised in the predetermined direction from the first rotation position and takes the second rotation position, the lock mechanism is set in the lock state and the response The displacement member regulates the lock operation of the lock mechanism by the operation member until the slide position of the movable support member in the protruding and retracting direction with respect to the case reaches a predetermined discharge completion position .
[0008]
In this retractable display device, since the lock mechanism is in the unlocked state when the display screen portion takes the first rotation position, the display screen portion can be manually slid in the insertion and ejection directions. Since the lock mechanism is in the locked state when taking the second rotation position caused in the predetermined direction from the first rotation position, the display screen can be held in a predetermined posture. In addition, the operation of the lock mechanism can be as simple as whether or not to lock the slide operation of the movable support member with respect to the case using the operation force from the display screen unit, and a simple and compact insertion / extraction mechanism is provided. It can be to those were. Furthermore, the display screen can be raised only at a predetermined discharge completion position, and the display screen can be prevented from being raised before the sliding operation is locked.
[0010]
Further, the retractable display device of the present invention is supported so as to be slidable in the insertion / removal direction with respect to the case, while supporting the display screen unit so that it can be inserted into and removed from the case in a rotatable manner. A movable support member, and a lock mechanism interposed between the case and the movable support member. The lock mechanism is operable to receive an operation force from the display screen unit, and is displaceable to the movable support member. And a responsive displacement member that is displaced in accordance with a sliding position of the movable support member relative to the case in a projecting and retracting direction. The lock mechanism is configured to perform a first operation in which the display screen unit is discharged to the outside of the case. When the second rotation position is caused by the movement position, the slide of the movable support member with respect to the case is locked, and the operation member moves the display screen from the second rotation position. The lock mechanism receives the operating force from the display screen unit when it is tilted opposite to the direction to be raised and takes the first rotation position, and when the display screen unit takes the first rotation position, When the display screen is raised in the predetermined direction from the first rotation position and takes the second rotation position, the lock mechanism is locked, and the responsive displacement member is the case. The display screen unit is prevented from being raised in the predetermined direction until the slide position of the movable support member with respect to the position reaches a predetermined discharge completion position . With this configuration, in this retractable display device, when the display screen portion takes the first rotation position, the lock mechanism is in the unlocked state, so the display screen portion can be manually slid in the insertion and ejection directions. When the display screen portion takes the second rotation position caused in the predetermined direction from the first rotation position, the display screen can be held in a predetermined posture because the lock mechanism is in the locked state. In addition, the operation of the lock mechanism can be as simple as whether or not to lock the slide operation of the movable support member with respect to the case using the operation force from the display screen unit, and a simple and compact insertion / extraction mechanism is provided. Can be Further, the display screen portion is restrained by the responsive displacement member until the slide position of the movable support member reaches a predetermined discharge completion position, so that the display screen portion may be raised before the slide operation is locked. Can be surely prevented.
[0011]
Furthermore, the retractable display device according to the present invention preferably includes a detection means for detecting that the display screen is moved to the second rotation position with respect to the case, which is operated by the operation member. Based on the detection information of the means, the display screen section can be displayed. With this configuration, it is possible to immediately shift to the screen display operation after the display screen unit is raised to the second rotation position.
[0012]
The retractable display device according to the present invention also guides the display screen unit between the movable support member and the case when the display screen unit goes in and out of the case and defines the discharge completion position. It is preferable to provide a rail. With this configuration, the posture at the time of insertion / ejection of the display screen unit can be held at a predetermined posture, and the discharge completion position can be clearly specified.
[0013]
The guide rail is slidably supported with respect to the case, and the display screen unit and the movable support member are held by the guide rail in a state of being discharged from the case to the outside. A wide range of screen angles can be set.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0015]
1 to 10 are views showing a retractable display device according to the present invention, and show an example in which the present invention is applied to a retractable display device portion of a car navigation system.
[0016]
As shown in FIGS. 4 to 6, the retractable display device 10 of the present embodiment is a device main body side case 11 that is open on the front side, and a plate-like display screen portion that is retractably accommodated in the case 11. A monitor 12, a small tray 13 made of sheet metal as a movable support member hinged to the monitor 12, and the small tray 13 are slidably supported back and forth within the case 11, and the case 11 itself is within a predetermined sliding range. On the other hand, a large tray 15 serving as a guide member that slides back and forth, and a hinge device 16 that is interposed between the monitor 12 and the small tray 13 and rotatably supports the monitor 12 on the small tray 13 are provided. The retractable display device 10 is a car navigation system in which a disk drive 20 is integrated with a monitor 12, and a push button switch, a jog dial switch, etc. for use as a navigation system are provided on the lower front side of the monitor 12. Such a known operation unit 17 is mounted.
[0017]
The monitor 12 is, for example, a liquid crystal display, and the monitor 12 and the small tray 13 are slidably moved forward and backward from a storage position in which the left and right sides are slidably stored in a slide-type large tray 15. The entire monitor 12 and the front end portion of the small tray 13 move between the large tray 15 and the protruding position protruding forward from the case 11. That is, the monitor 12 can appear and disappear with respect to the case 11.
[0018]
As shown in FIGS. 4 and 5, the monitor 12 can be manually raised upward, while being lowered from a horizontal rotation position (hereinafter referred to as a first rotation position) that slides within the large tray 15. The rotation range is limited to the maximum cause angle θ shown in FIG. Specifically, the monitor 12 rotates within an angle range from a horizontal posture when sliding in the large tray 15 to a predetermined maximum trigger position, and the maximum trigger angle θ is, for example, 120 Is set to degrees. The maximum cause angle θ is defined by a pair of left and right hinge devices 16 interposed between the monitor 12 and the small tray 13, and the monitor 12 has a predetermined angle of 90 degrees or more within the cause angle range. Can be used when it reaches a position (hereinafter, referred to as a second rotational position) where the angle is caused.
[0019]
The small tray 13 is a movable support member that rotatably supports the monitor 12. As shown in FIGS. 6 and 7, the small tray 13 can be slid to the large tray 15 by the roller portions 13r at both ends. It is supported and can move in the direction of appearing and retracting with respect to the case 11. The large tray 15 itself is also slidably guided by the left and right slide guides 18 with respect to the case 11, and a stopper (not shown) provided on the case 11 at a position where the forward protruding length from the tray 11 becomes a predetermined value. It comes to abut and stops. Here, the large tray 15 is a follower that moves only by an external force.
[0020]
The large tray 15 and the slide guide 18 are interposed between the small tray 13 and the case 11, and constitute guide means for guiding the monitor 12 and the small tray 13 in the front-rear direction when the monitor 12 appears and disappears from the case 11. The guide means defines the discharge completion positions of the monitor 12 and the small tray 13. Note that the large tray 15 is slidably supported with respect to the case 11 by the slide guide 18, and the left and right guide rail portions 15a and 15b of the large tray 15 are ejected from the case 11 to the outside (FIG. 6). Therefore, the trigger angle of the monitor 12 can be set in a wide range.
[0021]
As described above, the large tray 15 is supported in the case 11 so as to be slidable in the front-rear direction through the left and right slide guides 18, and the large tray 15 slides forward to a position where the monitor 12 can be raised. However, the small tray 13 has a range of movement by sliding in the front-rear direction with respect to the large tray 15. When the small tray 13 is pushed through the monitor 12 to a position where it comes into contact with the rear end stopper portion 15s (see FIG. 3) of the large tray 15, the large tray 15 together with the monitor 12 and the small tray 13 is placed in the case 11. Pushed in. That is, the large tray 15 together with the monitor 12 and the small tray 13 is pushed into the case 11 by a predetermined overstroke from the position where the front end position of the large tray 15 and the front end position of the case 11 are aligned.
[0022]
A storage-side lock mechanism using a lock cam and a return spring (not shown) is provided on the inner side of the case 11, and the large tray 15 together with the monitor 12 and the small tray 13 resists the return spring in the case 11. Is pushed further by a predetermined overstroke, the small tray 13 is locked in the case 11 by the discharge side locking mechanism, and the monitor 12 and the large tray 15 are also moved into the case 11 through the small tray 13. It can be held.
[0023]
Further, when the front end portion (upper end portion when standing up) of the monitor 12 is pushed into the case 11 and the large tray 15 is pushed again in the overstroke direction, the small tray 13 by the lock cam of the storage side lock mechanism. Is unlocked. A biasing means in the discharge direction, which will be described later, is provided between the rear ends of the small tray 13 and the large tray 15 and the case 11, and when the small tray 13 is unlocked, the monitor 12 by the user is displayed. The monitor 12 and the small tray 13 are discharged to the front side until the position where the pulling operation or the pulling operation and the pulling operation can be performed.
[0024]
On the other hand, between the small tray 13 and the case 11, when the monitor 12 is raised in a predetermined direction in a state protruding from the case 11, the sliding operation in the front-rear direction of the small tray 13 with respect to the case 11 is locked. A discharge-side lock mechanism 30 that can regulate the backward movement of the monitor 12 is interposed.
[0025]
As shown in FIGS. 1 to 3, the discharge side lock mechanism 30 is an operation member that receives an operation force from the monitor 12 when the monitor 12 falls in the sliding direction of the small tray 13 and takes the first rotation position. A lock spring 31 is provided. The operation member 31 operates the discharge-side lock mechanism 30 to the unlocked state when the monitor 12 takes the first rotation position, and the monitor 12 is moved in the predetermined direction from the first rotation position. When taking the action, the discharge side lock mechanism 30 is operated to the locked state.
[0026]
Specifically, as shown in FIGS. 7 to 9, the discharge side lock mechanism 30 has the lock spring 31 made of a leaf spring material screwed in the vicinity of the opening 13 h in the center of the front end side of the small tray 13. Further, a lateral slide plate 32 as a responsive displacement member supported by the small tray 13 so as to be slidable in the left-right direction within a predetermined range, and the lateral slide plate 32 on one side of the constant displacement direction, for example, in FIG. A pair of left and right rotating arms 34L, 34R having a tension spring 33 biased to the left side, a disc-shaped base end portion 34a rotatably supported on the small tray 13 and a tip end portion 34b protruding therefrom; A pair of guide studs 35a and 35b for guiding the lateral slide plate 32, and E-rings 36a and 36b attached to the both guide studs 35a and 35b are configured.
[0027]
Here, a slide pin 34c that engages with a cam groove (not shown) formed in the top plate portion of the case 11 is attached to the respective distal end portions 34b of the rotating arms 34L and 34R. In addition, engagement pins 34d are attached to the base end portions 34a of the rotation arms 34L and 34R at positions having a predetermined rotation radius, and these engagement pins 34d extend in the front-rear direction of the lateral slide plate 32. It is engaged with the extending vertical guide groove 32g. Then, when the small tray 13 slides in the front-rear direction, the turning arms 34L, 34R can displace the horizontal slide plate 32 in the left-right direction via the engagement pin 34d according to the slide position. Further, the rotating arms 34L and 34R pull the tension spring 33 to the maximum via the lateral slide plate 32 when the small tray 13 is pushed all the way into the small tray 13 when the small tray 13 is locked by the storage side locking mechanism. It also has a function of storing a spring force (elastic energy) for discharging 13.
[0028]
The horizontal slide plate 32 restricts the lock operation of the discharge side lock mechanism 30 by the lock spring 31 until the slide position of the small tray 13 in the direction of protrusion and disengagement with respect to the case 11 reaches the predetermined discharge completion position shown in FIGS. It is like that. When the slide position of the small tray 13 in the protruding and retracting direction reaches a predetermined discharge completion position, the lock claw portion 31a of the lock spring 31 is moved to the lock hole of the horizontal slide plate 32 as shown in FIGS. It falls into the part 32a. Therefore, the lock claw portion 31a of the lock spring 31 is attached in a state where the lock spring 31 is bent by a predetermined amount so as to be constantly biased toward the side slide plate 32 side.
[0029]
Further, the horizontal slide plate 32 has a lock piece portion 32b protruding to one side in the displacement direction, for example, the left side in FIG. 7, and this lock piece portion 32b is used when the small tray 13 reaches the discharge completion position. The small tray 13 is inserted into a fitting hole (not shown) formed on the large tray 15 side, and the backward movement of the small tray 13 with respect to the large tray 15 is restricted.
[0030]
Although not provided on the horizontal slide plate 32 in FIG. 7, as shown in FIG. 10, it protrudes from the horizontal slide plate 32 toward the monitor 12, and a part of the small tray 13, for example, shown in FIG. A projecting piece 32c penetrating the guide groove 13c can be provided. In that case, the protrusion 32c of the horizontal slide plate 32 is engaged with the monitor 12 until the small tray 13 reaches a predetermined discharge completion position, and when the discharge completion position is reached, the protrusion 32c is engaged with the monitor 12. The protrusion 12c can be regulated by the protrusion 32c so that the monitor 12 is raised in the predetermined direction.
[0031]
Although not shown, the discharge-side lock mechanism 30 is operated by the lock claw portion 31a of the lock spring 31 to detect that the monitor 12 is raised to the second rotation position with respect to the case 11. And a display control circuit (not shown) enables the display operation of the monitor 12 based on detection information caused by the detection means.
[0032]
Next, the operation of the retractable display device of this embodiment will be described.
[0033]
First, when a force to push inward of the case 11 is applied to the front end portion of the monitor 12 stored horizontally in the case 11, the large tray 15 moves backward in the stroke range corresponding to the overstroke, and the lock cam The small tray 13 is unlocked, and the monitor 12 is discharged forward to a position where the user can perform the triggering operation. Since the case 11 is embedded in an instrument panel or the like of the vehicle, the monitor 12 discharged forward is protruded from the instrument panel or the like in a state where the monitor 12 can be raised and operated.
[0034]
At this time, the monitor 12 has a stopper piece 13s of the small tray 13 on the rear upper surface portion at the rear end when the first rotation position is taken, that is, the lower rear surface portion 12c at the time of standing, behind the rotation axis of the hinge device 16. The lock spring 31 is in contact with the engagement piece 31b in the vicinity of the lock claw 31a, and the rotation in the direction in which the front end of the monitor 12 descends is restricted.
[0035]
Therefore, since the monitor 12 takes the substantially horizontal first rotation position and the discharge side lock mechanism 30 is in the unlocked state, a drawer operation for manually sliding the monitor 12 in the discharge direction can be performed.
[0036]
When the monitor 12 and the small tray 13 reach the discharge completion position, the protruding piece 32b of the horizontal slide plate 32 engages with a part of the large tray 15, and the sliding of the small tray 13 with respect to the large tray 15 is restricted. It becomes a temporary lock state.
[0037]
Next, the monitor 12 is raised upward and stopped in a desired posture, for example, a screen posture with a raised angle of 90 degrees or more. At this time, when the monitor 12 is raised in the predetermined direction from the first rotation position, the lock claw portion 31a of the lock spring 31 falls into the lock hole portion 32a of the horizontal slide plate 32, and the movement of the horizontal slide plate 32 is restricted. As a result, the discharge-side lock mechanism 30 is completely locked. Therefore, when the angle at which the monitor 12 is raised increases and the operation force to the backward side is applied to the small tray 13, the sliding operation of the small tray 13 is securely locked, and the monitor 12 is operated to a predetermined posture. can do.
[0038]
Next, the monitor 12 is held at a desired position by the rotational resistance of the hinge device 16. Further, when the monitor 12 is raised to the maximum position, a stopper (not shown) of the hinge device 16 is effective.
[0039]
As described above, in the present embodiment, the operation of the discharge side lock mechanism 30 changes the amount of deflection of the cantilever arm portion on the lock claw portion 13a side of the lock spring 31 using the operation force from the monitor 12. Thus, it is only necessary to lock the sliding operation of the small tray 13 with respect to the case 11 via the lateral slide plate 32, and a retractable display device having a simple and compact insertion / extraction mechanism can be obtained.
[0040]
Further, since the small tray 13 can slide with respect to the large tray 15 until the monitor 12 and the small tray 13 reach the discharge completion position, the monitor 12 can be caused only in a predetermined discharge completion position. It is possible to prevent the monitor 12 from being raised before the sliding operation is locked. Further, if the sliding of the small tray 13 reaches a predetermined discharge completion position, the cause of the monitor 12 is restricted by the projecting piece 32c of the lateral slide plate 32 as shown in FIG. It is possible to reliably prevent the monitor 12 from being raised before being locked.
[0041]
Further, in the present embodiment, by providing the detection means for detecting that the monitor 12 is caused to be moved to the second rotation position with respect to the case 11 by being operated by the lock spring 31, based on the cause detection information. When the monitor 12 is raised to the second rotation position, the operation by the operation unit 17 can be immediately performed and the screen display operation can be performed.
[0042]
Further, between the small tray 13 and the case 11, there is provided a large tray 15 having guide rail portions 15a and 15b for guiding the monitor 12 when the monitor 12 goes in and out of the case 11 and defining the discharge completion position. Therefore, the posture at the time of insertion / extraction of the monitor 12 can be maintained at a predetermined posture, and the discharge completion position can be clearly specified. In addition, the guide rail portions 15a and 15b of the large tray 15 are slidably supported with respect to the case 11, and the guide rail portion of the large tray 15 is ejected from the case 11 to the outside. Since it is held by 15a and 15b, the trigger angle of the monitor 12 can be set in a wide range.
[0043]
In this embodiment, the retractable display device is applied to the retractable display device of the car navigation system. However, the present invention can be applied to other in-vehicle devices or devices other than the in-vehicle devices that have a limited installation space. Is also applicable.
[0044]
【The invention's effect】
According to the present invention, the lock mechanism that locks the slide of the movable support member when the display screen portion is raised is provided with the operation member that receives the operation force from the display screen portion so that the lock state of the lock mechanism is switched. Therefore, the display screen can be manually inserted and ejected, and the horizontal posture can be maintained while the monitor is inserted and ejected, and the slide operation can be securely locked when the ejection is completed . It is possible to provide a retractable display device that can prevent the display screen unit from being raised before being locked .
[Brief description of the drawings]
FIG. 1 is a side cross-sectional view of a main part in a state in which a monitor is shown showing an embodiment of a retractable display device according to the present invention. FIG. FIG. 3 is a side cross-sectional view of the main part in the posture at the time of ejection. FIG. 3 is a side view of the main part in the posture at the time of insertion / removal of the monitor. FIG. 5 is a side view showing an embodiment of a display device. FIG. 5 is a front view showing an embodiment of a retractable display device according to the invention. FIG. 6 is an embodiment of a retractable display device according to the invention. FIG. 7A is a bottom view of the small tray showing the lock mechanism of the retractable display device according to the present invention. FIG. 7B is a top view of the small tray of the retractable display device according to the present invention. 8 A part of the small tray showing the lock mechanism of the retractable display device according to the present invention is crushed. FIG. 9 is an enlarged front view of the main part of the small tray shown in FIG. 8. FIG. 10 is a top view of the small tray showing the arm turning position when the retractable display device according to the present invention is retracted. Explanation】
DESCRIPTION OF SYMBOLS 10 Storage type display apparatus 11 Apparatus main body side case 12 Monitor (display screen part)
13 Small tray (movable support member)
13c Guide groove 13s Stopper piece 15 Large tray 15a, 15b Guide rail (guide rail)
16 Hinge device 17 Operation part 18 Side guide 30 Ejection side lock mechanism 31 Lock spring 31a Lock claw part 32 Horizontal slide plate 32a Lock hole part 32b Lock piece part 32c Projection part 33 Tension spring 34a Base end part 34b Tip part 34L, 34R Rotating arm 35a, 35b Guide stud

Claims (4)

A display screen unit that is removably stored in the case;
A movable support member that rotatably supports the display screen unit and is slidably supported in the insertion / extraction direction with respect to the case;
A locking mechanism interposed between the case and the movable support member ,
The lock mechanism includes an operation member that receives an operation force from the display screen unit, a responsive displacement member that is displaceably supported by the movable support member and is displaced according to a slide position of the movable support member in a protruding and retracting direction with respect to the case. Have
The locking mechanism locks the slide of the movable support member with respect to the case when the display screen is moved from the first rotation position discharged to the outside of the case and takes the second rotation position;
The operating member receives an operating force from the display screen when the display screen falls from the second rotation position in the opposite direction to the raised direction and takes the first rotation position, and the display screen When the first rotation position is set, the lock mechanism is unlocked by the operation member, and when the display screen is moved in the predetermined direction from the first rotation position and takes the second rotation position, The locking mechanism is in a locked state,
A retractable display characterized in that the responsive displacement member restricts the locking operation of the locking mechanism by the operating member until the sliding position of the movable support member in the protruding and retracting direction with respect to the case reaches a predetermined discharge completion position. apparatus. A display screen unit that is removably stored in the case;
A movable support member that rotatably supports the display screen unit and is slidably supported in the insertion / extraction direction with respect to the case;
A locking mechanism interposed between the case and the movable support member,
The lock mechanism includes an operation member that receives an operation force from the display screen unit, a responsive displacement member that is supported by the movable support member so as to be displaceable, and is displaced according to a slide position of the movable support member in a protruding and retracting direction with respect to the case. Have
The locking mechanism locks the slide of the movable support member with respect to the case when the display screen portion is raised from the first rotation position discharged to the outside of the case and takes the second rotation position;
The operation member receives an operation force from the display screen unit when the display screen is tilted in the reverse direction from the second rotation position and takes the first rotation position, and the display screen unit is When the first rotation position is set, the lock mechanism is unlocked by the operation member, and when the display screen is moved in the predetermined direction from the first rotation position and takes the second rotation position, The locking mechanism is in a locked state,
The responsive displacement member restricts the display screen unit from being raised in the predetermined direction until the sliding position of the movable support member in the protrusion / retraction direction with respect to the case reaches a predetermined discharge completion position. Type display device. Detection means is provided for detecting that the display screen unit is operated at the second rotation position with respect to the case by the operation member, and based on the detection information of the detection unit, the display screen unit The retractable display device according to claim 1 or 2 , wherein a display operation is enabled . The guide rail is provided between the movable support member and the case so as to guide the display screen when the display screen moves in and out of the case and to define the discharge completion position. The retractable display device according to claim 1 or 2 .

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