JP2009248817A - Image display device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an image display device selectively operating a first lock mechanism regulating rotation of an image display section and a second lock mechanism regulating sliding of the image display section by one operating lever. <P>SOLUTION: This image display device includes: an intermediate section 11b (11) rotatably supporting the image display section in an unfolding/folding direction; a guide section attached to the ceiling portion of a vehicle and slidably supporting the intermediate section 11 in the longitudinal direction of the vehicle or the width direction of the vehicle; the first lock mechanism (a first lock member 26, a coil spring 33, or the like) regulating the rotation of the image display section; the second lock mechanism (a second lock member 21, a coil spring 27, or the like) regulating the sliding of the intermediate section 11; and an operating section having the one operating lever 14 and selectively operating the first lock mechanism and the second lock mechanism according to the operation of the operating lever 14 by an operator. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an image display device attached to a ceiling portion of a vehicle.

  Conventionally, in the hinge mechanism of an in-vehicle display that is mounted on the vehicle ceiling so that the display can be unfolded and folded, the display is folded to fix the display to the ceiling, and when the display is unfolded, an operation switch provided on the opposite side of the hinge shaft A device that releases a latch by operating is known (for example, see Patent Document 1).

  Also, an image display device is known in which a guide rail for moving the image display unit is formed along the ceiling of the vehicle, and the image display unit is fixed to the guide rail with a nut member (see, for example, Patent Document 2). ).

JP 2006-282100 A JP 2004-123002 A

However, in the above-described hinge mechanism of the in-vehicle display, the operation switch has only a function for releasing the folded state of the display.
Further, in the image display device described above, the nut member only has a function of releasing the fixed state of the display.
The present invention has been completed based on the above circumstances, and includes a first lock mechanism that restricts the rotation of the image display unit and a second lock mechanism that restricts the slide of the image display unit. An object of the present invention is to provide an image display device that can be selectively operated with the operation lever.

1st invention is an image display apparatus attached to the ceiling part of a vehicle, Comprising: The image display part, The intermediate part which supports the said image display part so that rotation in the expansion | deployment and folding direction is possible, The ceiling part of the said vehicle A guide portion that is slidably supported in the vehicle front-rear direction or the vehicle width direction, a first lock mechanism that restricts rotation of the image display portion, and A second locking mechanism that regulates the slide; and one operating lever, and the first locking mechanism and the second locking mechanism can be selectively operated in accordance with an operation of the operating lever by an operator. And an operation unit that mechanically operates both the lock mechanisms by an operation force that operates the operation lever by the operator.
According to this invention, the first lock mechanism and the second lock mechanism can be selectively operated with one operation lever. Therefore, when the operator wants to operate both the first lock mechanism and the second lock mechanism, it can be operated continuously without releasing the operation lever, so that the operability is good and only one of the lock mechanisms is operated. If desired, only one of the lock mechanisms can be operated without changing the state of the other lock mechanism.
Furthermore, according to the present invention, since both the lock mechanisms are mechanically operated by an operation force of the operator operating the operation lever, the configuration can be simplified as compared with the case where the operation is electrically performed.

  In the second invention, the operation of the first lock mechanism by the operation unit is an operation for releasing the restriction of the rotation of the image display unit.

According to a third aspect of the present invention, the first lock mechanism moves between a hook provided in the image display unit, a position provided in the intermediate portion and engaged with the hook, and a position not engaged with the hook. And a first pressing member that constantly presses the first locking member in a direction in which the first locking member is engaged with the hook. When an operation for releasing the restriction by the first lock mechanism is performed, the first lock member is moved in a direction not engaged with the hook.
According to the present invention, the rotation can be restricted by always pressing the first lock member in the direction in which the first lock member is engaged with the hook, and the operator can perform the operation by releasing the restriction by the first lock mechanism. The restriction can be released by moving the one locking member in a direction not engaging with the hook.

In the fourth invention, when the image display unit is folded, the hook and the first lock member are engaged.
According to the present invention, when the image display unit is folded, the first lock member and the hook engage with each other. Therefore, when not in use, the image display unit can be folded on the ceiling.

  In a fifth aspect of the invention, the operation of the second lock mechanism by the operation unit is an operation for releasing the restriction of the slide of the intermediate part.

According to a sixth aspect of the present invention, the second lock mechanism includes a plurality of engagement holes provided in the guide portion so as to be separated from each other in a sliding direction of the intermediate portion, and provided in the intermediate portion from the intermediate portion. A second locking member that is movable between a projecting position and a position retracted into the intermediate part and that projects from the intermediate part and is selectively inserted into any of the engagement holes; and And a second pressing means that constantly presses the lock member in a direction protruding from the intermediate portion, and the operation portion is configured to allow the operator to perform an operation of releasing the restriction by the second lock mechanism by the operation lever. If done, the second locking member is pulled into the intermediate portion.
According to the present invention, the slide can be regulated by always pressing the second lock member in the direction protruding from the intermediate portion, and the second force can be applied by the operator performing an operation of releasing the regulation by the second lock mechanism. The restriction can be released by pulling the lock member into the intermediate portion.

In a seventh aspect of the present invention, the operation section includes a transmission mechanism provided between one of the first lock mechanism and the second lock mechanism and the operation lever. The operation force is indirectly transmitted to the lock mechanism via the transmission mechanism, and the operation force is directly transmitted to one of the other lock mechanisms.
According to the present invention, even if the first lock mechanism and the second lock mechanism are separated from each other, the operating force is indirectly transmitted to the one lock mechanism via the transmission means. Both lock mechanisms can be operated with one control lever. Further, since the operating force is directly transmitted to the other lock mechanism, it is not necessary to provide a transmission mechanism, and the operating force can be transmitted with a simple configuration.

In an eighth aspect of the invention, the transmission means transmits the operation force while changing the direction of the operation force.
According to the present invention, even if the direction of the operating force is different from the direction in which the force to operate the lock mechanism is to be directed, the first locking mechanism or the second locking mechanism is transmitted by changing the direction of the operating force by the transmission means. Can be operated.

In a ninth aspect, the transmission means amplifies and transmits the amount of movement of the operation lever.
According to the present invention, in order to operate the first lock mechanism or the second lock mechanism, it is necessary to move the components of the lock mechanism beyond the movement amount of the operation lever. By amplifying and transmitting the quantities, these locking mechanisms can be operated.

In the tenth aspect of the invention, the operation amount of the operation lever differs between when the first lock mechanism is operated and when the second lock mechanism is operated.
According to the present invention, each lock mechanism can be operated with an appropriate operation amount even if the operation amount necessary for the operation of the first lock mechanism is different from the operation amount necessary for the operation of the second lock mechanism.

  According to the present invention, the first lock mechanism for restricting the rotation of the image display unit and the second lock mechanism for restricting the slide of the image display unit can be selectively operated with one operation lever.

<Embodiment 1>
A first embodiment of the present invention will be described with reference to FIGS.
FIG. 1 is a schematic diagram illustrating a state in which an image display device 1 according to an embodiment of the present invention is attached to a ceiling portion of a vehicle. The image display device 1 according to the present embodiment can expand and fold the image display unit 10, and can fold the image display unit 10 on the ceiling when not in use. The image display device 1 can slide in the vehicle width direction.

2 and 3 are external perspective views of the image display device 1 in a state of being attached to the ceiling, FIG. 2 is a state in which the image display unit 10 is folded, and FIG. 3 is an unfolded view of the image display unit 10. It shows the state.
The image display device 1 is attached to an image display unit 10, an intermediate unit 11 that supports the image display unit 10 so as to be rotatable in the unfolding / folding direction, and the ceiling unit of the vehicle. And a guide portion 12 that is slidably supported in the left-right direction).

As shown in FIG. 3, the image display unit 10 includes a housing 10a, a liquid crystal display 10b supported by the housing 10a, and the like. A housing (not shown) for driving the liquid crystal display 10b is accommodated in the housing 10a. When the image display unit 10 is folded, the liquid crystal display 10b faces the intermediate unit 11 and becomes invisible. Further, the housing 10a is provided with a hook 13 that engages with the intermediate portion 11 when folded.
An operation lever 14 that is movable in the left direction and the right direction is provided on a side surface portion of the intermediate portion 11 that faces the vehicle rear side. Further, as shown in the drawing, an insertion hole 15 into which the hook 13 is inserted is formed in the lower surface portion of the intermediate portion 11.

  FIG. 4 is a perspective view of the guide portion 12 provided on the ceiling portion. The guide portion 12 includes a guide groove portion 17 that forms a guide groove 16 that extends in the vehicle width direction, a guide rail 18 that is fixed to the upper wall of the guide groove portion 17, and is supported by the guide rail 18 and slides in the vehicle width direction. And a base portion 19 to be used. The base portion 19 supports the intermediate portion 11 so as to be slidable. The intermediate portion 11 is fixed to the base portion 19 and slides in the width direction. A plurality of engagement holes 20 are formed in the upper wall of the guide groove portion 17 so as to be separated from each other in the sliding direction of the intermediate portion 11.

  The second lock member 21 indicated by a broken line is for restricting the sliding of the intermediate portion 11. Details of the second lock member 21 will be described later.

  FIG. 5 is a schematic view of a cross section of the guide rail 18 fixed to the ceiling portion and perpendicular to the vehicle width direction. As illustrated, the engagement holes 20 are provided on both sides of the guide rail 18.

FIG. 6 is an exploded perspective view of the intermediate portion 11. The intermediate portion 11 has an upper portion 11a formed in a substantially plate shape and a lower portion 11b formed in a substantially plate shape. Between the upper part 11a and the lower part 11b, an operation part, a part of 1st locking mechanism, and a part of 2nd locking mechanism are accommodated.
Here, the operation unit includes an operation lever 14 and a transmission unit that transmits an operation force for moving the operation lever 14 in the right direction to the second lock mechanism. The transmission means includes a rotating body 22, a leaf spring 23, rotating bodies 24 and 25, and a wire 45 (see FIG. 8).

The first lock mechanism includes a first lock member 26 accommodated in the intermediate portion 11, a coil spring 33 (see FIG. 8) as a first pressing means accommodated in the intermediate portion 11, and the image display portion 10. It is comprised by the hook 13 provided in this.
The second lock mechanism includes a second lock member 21 accommodated in the intermediate portion 11, two coil springs 27 (see FIG. 11) as second pressing means accommodated in the intermediate portion 11, and a guide portion. 12 is formed with an engagement hole 20 provided in 12.

A slide part 28 on a rectangular parallelepiped extending in the longitudinal direction is integrally formed with the upper part 11a. As shown in FIG. 5, the slide portion 28 is fitted into the guide groove 16, and is slid by being guided by the wall surface of the guide groove portion 17. Since the slide part 28 is guided to the wall surface of the guide groove part 17, the intermediate part 11 can slide smoothly without rattling.
As shown in FIG. 6, the slide portion 28 is formed with a rectangular through hole 29 penetrating in the vertical direction. A rectangular area 30 indicated by a broken line of the slide portion 28 indicates a position where the base portion 19 is fixed. As shown in FIG. 7, the upper portion 11 a has a rectangular region 30 fixed to the base portion 19.

  The lower part 11b is provided with a hinge mechanism 31 for supporting the image display unit 10 so as to be rotatable in the unfolding / folding direction. The lower portion 11b is provided with a groove portion 32 that forms a space for accommodating the above-described operation portion, a part of the first lock mechanism, and a part of the second lock mechanism.

FIG. 8 and FIG. 9 are a perspective view and a top view showing a state where the operating portion, a part of the first lock mechanism, and a part of the second lock mechanism are accommodated in the space formed by the groove part 32. Hereinafter, a description will be given based on FIG.
The groove portion 32 includes a space 34 for housing the coil spring 33, a space 35 for housing the first lock member 26, a space 36 for housing the operation lever 14, a space 37 for moving the operation lever 14 to the right, and the rotating body 22. A space 38 that accommodates the wire 45, a space 39 that accommodates the wire 45, and a space 40 that accommodates the coil spring 27 are formed. The space 37 for the operation lever 14 to move to the right side also serves as a space for the rotating body 22 to rotate and a space for accommodating the leaf spring 23.

Further, as shown in the drawing, a recess 41 is formed on the side wall of the lower portion 11b to form a space for accommodating a part of the operation lever 14.
The first lock member 26 is accommodated so as to be movable in the left-right direction, and the movement range in the left-right direction is defined by the wall surface 42 and the wall surface 43 of the groove 32. The aforementioned insertion hole 15 is formed in the bottom wall of the space 35 that accommodates the first lock member 26, and the first lock member 26 engages with the hook 13 inserted from the insertion hole 15.

The coil spring 33 is accommodated in a compressed state, and always presses the first lock member 26 in the right direction.
The second lock member 21 is accommodated in the through hole 29 of the slide portion 28 instead of the space 40. One end of a wire 45 for pulling the second lock member 21 into the intermediate portion 11 is fixed to the second lock member 21.

The coil spring 27 is housed below the second lock member 21 and constantly presses the second lock member 21 upward.
The operation lever 14 is accommodated in a space 36 formed by the groove 32 and a space 44 formed by the recess 41. When the operator moves the operation lever 14 to the left, the operation lever 14 contacts the first lock member 26 and transmits the operation force directly to the first lock member 26.

  The rotating body 22 converts an operating force that moves the operating lever 14 in the right direction into a force that pulls the second lock member 21 into the intermediate portion 11. The rotating body 22 is formed in a substantially rod shape and is pivotally supported on the bottom wall 32a of the groove 32 so as to be rotatable. The rotating body 22 rotates counterclockwise by the operating force that the operator moves the operating lever 14 to the right. The other end of the wire 45 is fixed to the tip of the arm portion of the rotating body 22, and when the rotating body 22 rotates counterclockwise, the wire 45 is pulled and the second lock member 21 is moved to the intermediate portion 11. Be drawn.

The rotating body 24 is formed in a substantially bobbin shape, and is pivotally supported on the bottom wall 32a of the groove 32 so as to be rotatable around a rotation axis extending in the vertical direction. The rotating body 24 prevents the wire 45 from contacting and rubbing against the side wall of the groove 32 when the wire 45 is drawn.
The rotating body 25 is formed in a substantially bobbin shape, and is supported on the side wall of the groove portion 32 so as to be rotatable around a rotation axis extending in the left-right direction. The rotating body 25 prevents the wire 45 from coming into contact with the upper portion 11a and rubbing.

Next, the details of each component described above will be described.
FIG. 10 is a perspective view of the first lock member 26. The first lock member 26 is formed in a shape in which two parallel wall portions 26a and 26b are connected by a flat plate portion 26c. A through hole 26d is formed in the flat plate portion 26c. The hook 13 inserted from the insertion hole 15 is inserted into the through hole 26d and engages with the flat plate portion 26c.

FIG. 11 is a perspective view of the second lock member 21 and the coil spring 27, and is a perspective view of the second lock member 21 as viewed from the back side. The second lock member 21 has a flat plate portion 21a and two engagement protrusions 21b extending perpendicularly from the surface of the flat plate portion 21a.
The two coil springs 27 are accommodated in a compressed state between the flat plate portion 21 a and the bottom wall 32 a of the groove portion 32, and always press the second lock member 21 in a direction protruding from the slide portion 28. .

  As shown in the drawing, the other end of the wire 45 is fixed to the second lock member 21, and when the second lock member 21 is pushed by the coil spring 27 and moves in a direction protruding from the slide portion 28, the wire 45 is moved. Is pulled and the rotating body 22 returns to the initial position shown in FIG.

  FIG. 12 is a perspective view of the operation lever 14. The operation lever 14 includes a long-plate-shaped finger-hanging portion 14a for a user to hang a finger, a contact portion 14b that contacts the first lock member 26, a contact portion 14c that contacts the rotating body 22, and a connection portion 14d. Have. Anti-slip for preventing the finger from slipping is formed on the finger hanging portion 14a. The connecting portion 14d extends to the right from the tip of the contact portion 14b, and connects the contact portion 14b and the contact portion 14c.

FIG. 13 is a perspective view of the rotating body 22. The rotating body 22 includes a shaft portion 22b in which a bearing hole 22a is formed, and two arm portions 22c and 22d extending in opposite directions from the shaft portion 22b. A protrusion 22e that protrudes in the rotation axis direction of the rotating body 22 is formed at the tip of the arm portion 22c.
The lengths of the arm portion 22c and the arm portion 22d are different, and the arm portion 22c that pulls the wire 45 is longer than the arm portion 22d that contacts the operation lever 14. As a result, the amount of movement of the operation lever 14 is amplified, and the second lock member 21 is pulled more than the amount of movement of the operation lever 14.

  Here, the reason for amplifying the movement amount will be described. In order to more reliably regulate the sliding of the intermediate portion 11, it is desirable to insert the second lock member 21 deeply into the engagement hole 20. However, when it is inserted deeply, the amount of the second lock member 21 to be retracted must be increased accordingly when the restriction is released. However, if the amount of movement of the operation lever 14 is increased in order to retract the second lock member 21 much, the operation becomes troublesome for the user and the operability is lowered. Therefore, in the present embodiment, the amount of movement of the operation lever 14 is amplified by the rotating body 22 so that the second lock member 21 can be inserted deeply into the engagement hole 20 without deteriorating operability. .

  FIG. 14 is a cross-sectional view showing a cross section of the guide groove 32 b and the rotary shaft 32 c formed on the bottom wall 32 a of the groove portion 32 and a cross section of the rotating body 22. The rotating body 22 is rotatably supported in the groove portion 32 by inserting a bearing hole 22a into a rotation shaft 32c formed in the bottom wall 32a of the groove portion 32. The protrusion 22e of the rotating body 22 is inserted into an arcuate guide groove 32b formed on the bottom wall 32a of the groove portion 32, and is circularly moved while being guided by the guide groove 32b. Thereby, the rotation body 22 can rotate stably.

  FIG. 15 is a perspective view showing a state in which the leaf spring 23 is accommodated in the space 37. When the operating lever 14 is moved in the right direction, the pressing force of the coil spring 27 acts as a leftward force on the operating lever 14 via the rotating body 22. The leaf spring 23 is for positioning the operation lever 14 to the right end against this leftward force.

  FIG. 16 is a cross-sectional view for explaining the relationship between the leaf spring 23 and the operation lever 14. As shown in the drawing, the lowest point 23a of the leaf spring 23 is at a position lower than the upper end of the contact portion 14c. Accordingly, when the operation lever 14 is moved in the right direction from the neutral position, the operator pushes the leaf spring 23 upward by the contact portion 14c and moves it. In other words, after the operation lever 14 is moved to the right end, the movement of the operation lever 14 in the left direction is restricted by the leaf spring 23.

Next, the rotation restriction by the first lock mechanism will be described.
17 to 19 are schematic diagrams illustrating the relationship between the first lock mechanism and the position of the operation lever 14. FIG. 17 shows a state in which the image display unit 10 is folded. When the image display unit 10 is folded, the hook 13 and the first lock member 26 are engaged, and the rotation of the image display unit 10 in the unfolding direction is restricted. At this time, the operation lever 14 is in a neutral position where it does not move in either the left or right direction.

When canceling the restriction of the rotation by the first lock mechanism, the user moves the operation lever 14 to the left as shown in FIG. When the operation lever 14 is moved in the left direction, the first lock member 26 is moved to the left, the engagement between the hook 13 and the first lock member 26 is released, and the restriction is released.
As shown in FIG. 19, after the image display unit 10 is rotated in the unfolding direction and the hook 13 and the first lock member 26 are disengaged, when the user releases the operation lever 14, the first display is performed. The lock member 26 is pushed by the coil spring 33 and moves to the right, whereby the operation lever 14 returns to the neutral position.

Next, slide regulation by the second lock mechanism will be described.
FIG. 20 is a perspective view of the intermediate unit 11 and the image display unit 10. FIG. 20 shows the intermediate portion 11 when the operation lever 14 is in the neutral position. When the operation lever 14 is in the neutral position, the second lock member 21 is pushed by the coil spring 27 and protrudes from the slide portion 28 as shown. The second lock member 21 protruding from the slide portion 28 is selectively inserted into one of the engagement holes 20 as shown in FIG. 21, thereby restricting the slide of the intermediate portion 11.

When releasing the restriction of the slide by the second lock mechanism, the operation lever 14 is moved rightward. When the operation lever 14 is moved in the right direction, the second lock member 21 is pulled into the slide portion 28, whereby the engagement between the second lock member 21 and the engagement hole 20 is released, and the restriction is released.
After releasing the restriction, the operator slides the intermediate portion 11 to a desired position and manually returns the operation lever 14 to the neutral position. When returned to the neutral position, the second lock member 21 protrudes from the intermediate portion 11 and the sliding is restricted, whereby the intermediate portion 11 is localized at the position.

  In the above-described operation, in this embodiment, when the operator moves the operation lever 14 in the right direction, the movement of the operation lever 14 in the left direction is restricted by the leaf spring 23 even if the operation lever 14 is released. Does not return to the neutral position. Therefore, the operator operates to prevent the operation lever 14 from returning to the neutral position after the operation lever 14 is moved rightward to release the restriction and until the intermediate portion 11 is slid to a desired position. There is no need to hold down the lever 14. Therefore, according to this embodiment, operability is good for the operator.

According to the image display device 1 according to the embodiment of the present invention described above, the operation for releasing the restriction of the rotation by the first lock mechanism and the operation for releasing the restriction of the slide by the second lock mechanism are the same. The operation lever 14 can be selectively operated.
Therefore, when the operator wants to release both the restriction of rotation and the restriction of slide, it can be released continuously without releasing the operation lever 14, so that the operability is good, and when only one lock mechanism is to be operated. Only one of the lock mechanisms can be operated without changing the state of the other lock mechanism.

  Furthermore, according to the image display apparatus 1, since both the lock mechanisms are mechanically operated by the operation force of the operator operating the operation lever 14, the configuration can be simplified compared to the case where the operation is electrically performed.

  Furthermore, according to the image display device 1, the operating force for moving the operating lever 14 in the right direction is different from the force for pulling the second lock member 21 into the intermediate portion 11, and the rotating body 22 is different from the operating lever 14. Is converted into a force in a direction in which the second lock member 21 is pulled into the intermediate portion 11. As described above, according to the image display device 1, even when the direction of the operating force is different from the direction in which the force for releasing the restriction by the second locking mechanism should be directed, the restriction by the second locking mechanism can be released.

  Further, according to the image display device 1, the operation lever 14 directly abuts on the first lock member 26 to transmit the operation force, while the second lock member 21 transmits the operation force by the transmission mechanism. Thereby, even if the 1st lock member 26 and the 2nd lock member 21 are spaced apart, both the lock members can be operated with one operation lever 14. Further, since the operating force is directly transmitted to the first lock member 26, it is not necessary to provide a transmission mechanism, and the operating force can be transmitted with a simple configuration.

  Furthermore, according to the image display device 1, the movement amount (an example of the operation amount) by which the operation lever 14 moves to the left from the neutral position is different from the movement amount (an example of the operation amount) that moves to the right. If the movement amount is different between the left direction and the right direction, even if the movement amount necessary for the operation of the first lock mechanism and the movement amount necessary for the operation of the second lock mechanism are different, Each can be operated with an appropriate amount of movement.

<Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.
(1) In the above embodiment, the case where the intermediate portion 11 is slidable in the vehicle width direction has been described as an example. However, the intermediate portion 11 may be configured to be slidable in the vehicle front-rear direction, or both in the width direction and the front-rear direction. You may comprise so that a slide is possible.

  (2) In the above embodiment, the operation lever 14 operated in the left direction and the right direction of the vehicle has been described as an example. However, the operation method of the operation lever is not limited to these, and the first lock mechanism and the first Any method can be used as long as the two locking mechanisms can be selectively operated. For example, the operation lever may be operated upward or may be operated downward. Alternatively, the operation lever may be configured as a push button to be pushed forward of the vehicle.

  (3) In the above embodiment, the operation lever 14 operated in the two directions of the left direction and the right direction of the vehicle has been described as an example. However, in addition to these directions, the operation lever 14 can be further operated in the third direction. Good. For example, the image display unit is configured to be rotatable about a rotation axis extending in the vertical direction of the vehicle, and when the operation lever is operated in the third direction, the rotation around the rotation axis is restricted. The lock mechanism 3 may be operated.

  (4) In the above embodiment, the amount of movement of the operating lever 14 moving leftward from the neutral position is different from the amount of movement moving rightward, but the amount of movement may be the same in the leftward and rightward directions. .

  (5) In the above embodiment, the operation lever 14 directly contacts the first lock member 26 to transmit the operation force, and the second lock member 21 transmits the operation force by the transmission means. The second locking member 21 may be in direct contact with each other to transmit the operating force, and the first locking member 26 may be configured to transmit the operating force by a transmission unit.

  (6) In the above embodiment, the coil springs have been described as examples of the first pressing means and the second pressing means. However, any coil spring can be used as long as the first locking member 26 and the second locking member 21 can be pressed. You may press by means other than.

1 is a schematic diagram of an image display device according to an embodiment of the present invention. 1 is a perspective view of an image display device according to an embodiment of the present invention. 1 is a perspective view of an image display device according to an embodiment of the present invention. The perspective view of the guide part which concerns on one Embodiment of this invention. Sectional drawing of the guide part which concerns on one Embodiment of this invention. The disassembled perspective view of the intermediate part which concerns on one Embodiment of this invention. 1 is a perspective view of an image display device according to an embodiment of the present invention. The perspective view of the operation part etc. which concern on one Embodiment of this invention. The top view of the operation part etc. which concern on one Embodiment of this invention. The perspective view of the 1st lock member concerning one embodiment of the present invention. The perspective view of the 2nd lock member etc. concerning one embodiment of the present invention. The perspective view of the operation lever which concerns on one Embodiment of this invention. The perspective view of the components which comprise the transmission means which concerns on one Embodiment of this invention. Sectional drawing of the components which comprise the transmission means which concerns on one Embodiment of this invention. The perspective view of the components which comprise the transmission means which concerns on one Embodiment of this invention. Sectional drawing of the components which comprise the transmission means which concerns on one Embodiment of this invention. The schematic diagram which concerns on one Embodiment of this invention. The schematic diagram which concerns on one Embodiment of this invention. The schematic diagram which concerns on one Embodiment of this invention. The perspective view of the intermediate part and image display part which concern on one Embodiment of this invention. Sectional drawing which concerns on one Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Image display apparatus 10 ... Image display part 11 ... Intermediate | middle part 12 ... Guide part 13 ... Hook (1st locking mechanism)
14 ... Control lever (control unit)
20 ... engaging hole (second locking mechanism)
21 ... Second lock member (second lock mechanism)
22: Rotating body (operation unit, transmission means)
23. Leaf spring (operation part, transmission means)
24: Rotating body (operation unit, transmission means)
25 ... Rotating body (operation unit, transmission means)
26: First lock member (first lock mechanism)
27 ... Coil spring (second locking mechanism, second pressing means)
32 ... Groove (operation part, transmission means)
33 ... Coil spring (first locking mechanism, first pressing means)
45 ... Wire (operation part, transmission means)

Claims (10)

An image display device attached to a ceiling of a vehicle,
An image display unit;
An intermediate part that supports the image display part so as to be rotatable in the unfolding / folding direction;
A guide portion that is attached to a ceiling portion of the vehicle and supports the intermediate portion so as to be slidable in the vehicle front-rear direction or the vehicle width direction;
A first lock mechanism for restricting rotation of the image display unit;
A second locking mechanism for regulating the sliding of the intermediate portion;
An operation lever having one operation lever, wherein the first lock mechanism and the second lock mechanism can be selectively operated in accordance with an operation of the operation lever by an operator, and the operator operates the operation lever. An operation unit that mechanically operates both the lock mechanisms by force;
An image display device comprising:   The image display device according to claim 1, wherein the operation of the first lock mechanism by the operation unit is an operation of releasing the restriction on the rotation of the image display unit. The first lock mechanism is a first lock that is movable in a hook provided in the image display unit, a position provided in the intermediate portion and engaged with the hook, and a position not engaged with the hook. A member, and first pressing means for constantly pressing the first locking member in a direction to engage with the hook,
3. The operation unit according to claim 2, wherein when the operator performs an operation of releasing the restriction by the first lock mechanism by the operation lever, the operation unit moves the first lock member in a direction not engaged with the hook. The image display device described.   The image display device according to claim 3, wherein when the image display unit is folded, the hook and the first lock member are engaged.   5. The image display device according to claim 1, wherein the operation of the second lock mechanism by the operation unit is an operation of releasing the restriction of the slide of the intermediate part. The second lock mechanism includes a plurality of engagement holes provided in the guide portion so as to be separated from each other in a sliding direction of the intermediate portion, a position provided in the intermediate portion and protruding from the intermediate portion, and the intermediate portion. A second lock member that is movable to a position pulled into the portion and that protrudes from the intermediate portion and is selectively inserted into any of the engagement holes; and the second lock member is inserted into the intermediate portion. And a second pressing means for always pressing in the direction protruding from the
The image display device according to claim 5, wherein the operation unit pulls the second lock member into the intermediate portion when the operator performs an operation of releasing the restriction by the second lock mechanism by the operation lever. .   The operation unit includes a transmission mechanism provided between one of the first lock mechanism and the second lock mechanism and the operation lever, and the transmission mechanism is connected to the one lock mechanism. The image display device according to any one of claims 1 to 6, wherein the operation force is transmitted indirectly via a first and the operation force is directly transmitted to one of the other lock mechanisms.   The image display apparatus according to claim 7, wherein the transmission unit transmits the operation force while changing a direction of the operation force.   The image display device according to claim 7, wherein the transmission unit amplifies and transmits the movement amount of the operation lever. 10. The image display device according to claim 1, wherein the operation amount of the operation lever differs between when operating the first lock mechanism and when operating the second lock mechanism.

Images