Movable type display device

Abstract

To provide a movable type display device that comprises a restriction mechanism securely restricting a display member from moving with a low load when the display member moves into at least one of a display posture and a non-display posture.SOLUTION: A display member 3 is supported rotatably by a slide member 14 and an attached member 25 rotating together with the display member 3 is provided with a rotary body 27 supported by a cantilever 28a. A support part is provided with a display-side restriction mechanism 40a and a non-display-side restriction mechanism 40b, and the rotary body 27 is pressed against restriction surfaces provided to the display-side restriction mechanism 40a and non-display-side restriction mechanism 40b to restrict the display member 3 from moving in a display posture and a non-display posture.SELECTED DRAWING: Figure 5

Description

[Technical Field]

[0001] The present invention relates to a movable display device in which a display member can be rotated to be set in a display position or a non-display position, and the display member can be restricted so as not to move in at least one of the display position or the non-display position. [Background technology]

[0002] Patent Document 1 describes an invention related to a monitor storage device. This monitor storage device opens and closes a monitor stored in a storage compartment located in the ceiling of a passenger aircraft cabin. The monitor is supported in the storage compartment so that it can rotate about a rotation axis. A motor is provided in the monitor storage device, and the power of the motor operates to open and close the monitor between a closed state in which the monitor is stored parallel to the storage compartment and an open state in which the monitor is opened at an angle of approximately 110 degrees relative to the storage compartment and is ready for use. A toggle spring is provided between the storage compartment and a rotating part that rotates with the monitor, and the elastic force of the toggle spring urges the monitor to both the closed and open states.

[0003] Patent Document 2 describes an invention related to a panel angle switching structure. This panel angle switching structure is used in a car navigation device and includes a main body, a panel storage section fixed to the front of the main body, and a panel stored in the panel storage section. A slide base that moves forward and backward by an electric drive unit is provided inside the main body. When the slide base retracts, the panel is in an upright position, and when the slide base advances, the panel is in an inclined position. A wall is provided in front of the slide base, and an axle provided on the panel is rotatably supported by the wall, with a leaf spring fixed to the axle abutting the wall. With this structure, the panel is held in place by friction acting between the wall and the leaf spring, preventing the generation of mechanical noise during vibration. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2014-8825 [Patent Document 2] Japanese Patent Application Publication No. 2019-21696 Summary of the Invention [Problem to be solved by the invention]

[0005] The monitor storage device described in Patent Document 1 applies a large rotational force from the toggle spring to the monitor when the monitor is opened or closed, which can easily cause impacts and noise when the monitor switches between states. Furthermore, when rotating the monitor from the open state to the closed state, or when rotating the monitor from the closed state to the open state, a large driving force is required to reverse the toggle spring. This constantly places a load on the drive mechanism that rotates the monitor, making it susceptible to wear and tear.

[0006] In the panel angle switching structure described in Patent Document 2, when the panel switches from an upright position to an inclined position, the frictional force between the wall portion and the leaf spring always acts as a load, resulting in a large loss of power and making it easy for wear to occur between the wall portion and the leaf spring.

[0007] The present invention solves the above-mentioned conventional problems, and aims to provide a movable display device that can stabilize a display member in at least one of a display position and a non-display position, and that can suppress an increase in the load required to stabilize the display member in each position. [Means for solving the problem]

[0008] The present invention provides a movable display device including a support portion, a display member, and a drive mechanism that rotates the display member to a display position and a non-display position, a restricting mechanism that restricts movement of the display member when the display member reaches at least one of the display position and the non-display position, The regulating mechanism is characterized by having a rotating body provided on either the support part or the display member or an accessory member that rotates together with the display member, a regulating surface provided on the other, and a spring member that presses the rotating body against the regulating surface.

[0009] In the movable display device of the present invention, the spring member is an elastically deformable cantilever, and the rotating body is supported on a free end side of the cantilever, When the direction of relative movement of the rotating body with respect to the regulating surface when the display member reaches at least one of the display position and the non-display position is defined as a regulating advancement direction, When the rotor is pressed against the regulating surface, the cantilever is preferably inclined so that the free end is positioned closer to the regulating direction of travel than the fixed end.

[0010] The movable display device of the present invention is provided with a display-side regulating mechanism that regulates movement of the display member when the display member reaches the display position, and a non-display-side regulating mechanism that regulates movement of the display member when the display member reaches the non-display position, In both cases where the display member is regulated by the display side regulating mechanism and where it is regulated by the non-display side regulating mechanism, the cantilever can be configured so that its free end is inclined in a direction that is closer to the regulating direction than the fixed end.

[0011] For example, in the movable display device of the present invention, the drive mechanism a slide member on which the display member is rotatably supported; a power source that reciprocates the slide member to move it between a display setting position and a non-display setting position; a switching mechanism that rotates the display member toward the display posture by a moving force when the sliding member moves to the display setting position, and rotates the display member toward the non-display posture by a moving force when the sliding member moves to the non-display setting position, The display-side restricting mechanism and the non-display-side restricting mechanism are arranged with an interval in the moving direction of the slide member.

[0012] In the movable display device of the present invention, the cantilever and the rotating body are supported by the display member or an accessory member that rotates together with the display member, When the slide member moves between the display setting position and the non-display setting position, the display member rotates and the orientation of the cantilever is switched, Both when the display member is regulated by the display side regulating mechanism and when it is regulated by the non-display side regulating mechanism, it is possible to tilt the cantilever in a direction in which the free end is positioned further toward the regulating direction than the fixed end.

[0013] The present invention also provides a support portion, a slide member supported on the support portion so as to be reciprocally movable in a direction intersecting the direction of gravity; a display member rotatably supported by the slide member; a power source that reciprocates the slide member between a display setting position and a non-display setting position; a switching mechanism that rotates the display member toward a display position in which a tip end portion on the opposite side to the rotation support side faces the direction of gravity by a moving force when the slide member moves to the display setting position, and rotates the display member toward a non-display position in which the tip end portion is raised by a moving force when the slide member moves to the non-display setting position; a display-side restricting mechanism that restricts movement of the display member when in the display position, and a non-display-side restricting mechanism that restricts movement of the display member when in the non-display position, The display member is characterized in that when the slide member moves between the display setting position and the non-display setting position, the display member is not restricted by either the display side restricting mechanism or the non-display side restricting mechanism.

[0014] The movable display device of the present invention is provided with a guide cam that guides the switching mechanism when the slide member moves, the guide cam is provided with an inclined guide portion inclined with respect to the moving direction of the slide member, and when the slide member moves to an intermediate position between the display setting position and the non-display setting position, the switching mechanism is guided by the inclined guide portion; When the switching mechanism is guided by the inclined guide portion, the display member can be configured not to be restricted by either the display-side restricting mechanism or the non-display-side restricting mechanism.

[0015] It is preferable that the movable display device of the present invention is one in which the display side regulating mechanism and the non-display side regulating mechanism have a rotating body provided on either the support part or the display member or an accessory member that rotates together with the display member, a regulating surface provided on the other, and a spring member that presses the rotating body against the regulating surface.

[0016] The movable display device of the present invention can be configured to have a holding mechanism that prevents the display member, which has been rotated to the non-display position, from moving in the direction of gravity due to the moving force applied when the sliding member moves toward the non-display setting portion. [Effects of the Invention]

[0017] In the regulating mechanism of the movable display device of the present invention, the rotating body is pressed against the regulating surface, the rotating body rolls, and the display member reaches at least one of the display position and the non-display position, so the load required to bring the display member into each position is a rolling load, and the display member can be stably regulated with a low load in the display position or the non-display position.

[0018] Furthermore, in the movable display device of the present invention, the display member is not restricted by either the display-side restricting mechanism or the non-display-side restricting mechanism when the sliding member moves between the display setting position and the non-display setting position. Therefore, even in a movable structure that imposes a relatively large load on the display member, which rotates the display member from a display position in which the tip faces the direction of gravity to a non-display position in which the tip is raised, it is possible to prevent the load from the restricting mechanism from acting constantly, and to prevent the operating load from becoming excessive. [Brief explanation of the drawings]

[0019] [Figure 1] 1 is a perspective view showing the overall structure of a movable display device according to an embodiment of the present invention, in which a display member is in a display position; FIG. [Figure 2] 1 is a perspective view showing the overall structure of a movable display device according to an embodiment of the present invention, in which a display member is in a non-display position; FIG. [Figure 3] FIG. 2 is a partially enlarged perspective view of FIG. 1, mainly showing the structure of the support unit and the drive mechanism; [Figure 4] 4 is an exploded perspective view of the drive mechanism shown in FIG. 3; [Figure 5] FIG. 1 is a side cross-sectional view showing a state in which a display member is in a display position in a movable display device according to an embodiment of the present invention; [Figure 6] 1 is a side cross-sectional view showing an operating state in which a display member is in the middle of transitioning from a display position to a non-display position in a movable display device according to an embodiment of the present invention; FIG. [Figure 7] FIG. 1 is a side cross-sectional view showing a state in which a display member is in a non-display position in a movable display device according to an embodiment of the present invention; [Figure 8] 10A and 10B are enlarged side cross-sectional views showing the operation of the display-side restricting mechanism; [Figure 9] 10A and 10B are partially enlarged cross-sectional side views showing the operation of the non-display side regulating mechanism; [Figure 10] 10 is a partial perspective view showing a holding mechanism for holding the display member, illustrating an operation during which the tip of the display member is held; FIG. [Figure 11]FIG. 10 is a partial perspective view showing a state in which the holding mechanism for holding the display member has completed holding the tip of the display member; [Figure 12] FIG. 1A is an explanatory diagram illustrating the regulating operation of the non-display side regulating mechanism, and FIG. 1B is an explanatory diagram illustrating the regulating operation of the display side regulating mechanism. DETAILED DESCRIPTION OF THE INVENTION

[0020] The movable display device 1 according to the embodiment of the present invention is installed and used on the ceiling of a car interior. Alternatively, the movable display device 1 can also be installed and used on the ceiling of a train interior, an airplane interior, or a building interior.

[0021] In each figure, the Y1-Y2 direction is the front-to-rear direction, with the Y1 direction being rearward and the Y2 direction being forward. The Y1 direction is the direction toward the display setting position, and the Y2 direction is the direction toward the non-display setting position. The X1-X2 direction is the horizontal direction, with the X1 direction being leftward and the X2 direction being rightward. The Z1-Z2 direction is the vertical direction, with the Z1 direction being upward and the Z2 direction being downward. When the movable display device 1 is installed on the ceiling inside the vehicle, the Z2 direction is the direction of gravity.

[0022] As shown in Figures 1 and 2, the movable display device 1 has support parts 2a and 2b. The support parts 2a and 2b are support frames that extend linearly and parallel to each other in the front-to-rear direction (Y1-Y2 direction). The support part 2a is located on the left side (X1 side), and the support part 2b is located on the right side (X2 side). When the movable display device 1 is fixed to the ceiling part inside the vehicle, the support parts 2a and 2b are fixed parallel to the XY plane, which is a substantially horizontal plane.

[0023] The movable display device 1 has a display member 3. The display member 3 has a rectangular case 4, which has a front surface 4a and a back surface 4b. A display panel such as a liquid crystal display panel or an electroluminescence panel is housed inside the case 4. The display screen of the display panel is visible on the front surface 4a of the case 4. The case 4 has a rotation support portion 4c and a tip portion 4d on the side opposite to the rotation support side where the rotation support portion 4c is located. In Figures 1 and 5, the display member 3 is in a display position, with the front surface 4a of the case 4 facing slightly downward forward (in the Y2 direction) and the tip portion 4d facing downward (in the Z2 direction), which is the direction of gravity. In Figures 2 and 7, the display member 3 is in a non-display position (storage position), with the tip portion 4d of the case 4 raised upward (in the Z1 direction), and the front surface 4a and the back surface 4b being approximately parallel to the horizontal plane (the XY plane).

[0024] As shown in Figures 1 and 2, a left-side drive mechanism 10a and a right-side drive mechanism 10b are provided between the support parts 2a, 2b and the display member 3. The drive mechanisms 10a, 10b are the structures and mechanisms of the components shown in Figures 1 and 2, excluding the support parts 2a, 2b, the display member 3, and the display-side regulating mechanism 40a and non-display-side regulating mechanism 40b, which will be described later. The left-side drive mechanism 10a and the right-side drive mechanism 10b are plane-symmetrical in the left-right direction (X1-X2 direction). The right-side drive mechanism 10b is provided with a motor that serves as a drive source.

[0025] Figures 3 and 4 show the details of the left-side drive mechanism 10a. The left-side drive mechanism 10a is provided with an outer bracket 11 and an inner bracket 12. The outer bracket 11 is bent at a right angle to form a vertical support piece 11a and a horizontal support piece 11b. As shown in Figures 1 and 2, the vertical support piece 11a is fixed by screws to the inner surface of the support part 2a facing the right side (X2 side). A fixed rail 13 is fixed by screws to the surface facing the right side of the vertical support piece 11a. The fixed rail 13 extends linearly in the front-to-rear direction (Y1-Y2 direction). The left-side drive mechanism 10a is provided with a slide member 14. As shown in Figure 4, the slide member 14 has an outer slide portion 15 and an inner slide portion 16. At the front of the slide member 14, the outer slide portion 15 and the inner slide portion 16 are fixed to each other by a front connecting shaft 17, and at the rear, the outer slide portion 15 and the inner slide portion 16 are fixed to each other by a rear connecting shaft 18. The outer slide portion 15 is a movable rail, and is held on the fixed rail 13 so as to be slidable in the front-to-rear direction. The slide member 14, which is made up of the outer slide portion 15 and the inner slide portion 16 fixed to each other, is supported by the support portion 2a so as to be movable back and forth linearly in the front-to-rear direction (Y1-Y2 direction).

[0026] 1 and 2, the left-side drive mechanism 10a and the right-side drive mechanism 10b are connected by a connecting drive shaft 21. As shown in FIG. 3, the connecting drive shaft 21 is supported inside a long guide hole 12a formed in the inner bracket 12 and extending in the front-rear direction, and the left end (X1 side) of the connecting drive shaft 21 is rotatably supported by a bearing 24 fixed to the inner slide portion 16. As shown in FIG. 4, a rack member 23 is fixed to the underside of the horizontal support piece 11b of the outer bracket 11. A pinion gear 22 is fixed to the left end of the connecting drive shaft 21, and the pinion gear 22 meshes with rack teeth formed on the lower part of the rack member 23.

[0027] 1 and 2, the right-side drive mechanism 10b is also provided with a slide member 14, and the right end of a connecting drive shaft 21 is rotatably supported by a bearing 24 fixed to the inner slide portion 16 of the slide member 14. A pinion gear 22 is also fixed to the right end of the connecting drive shaft 21, and the pinion gear 22 meshes with rack teeth of a rack member 23 fixed to the outer bracket 11 of the right-side drive mechanism 10b. In the right-side drive mechanism 10b, a motor and a group of gears serving as a drive source are supported on the inner slide portion 16, and the pinion gear 22 is driven by power from the motor, thereby rotating the connecting drive shaft 21. As a result, in both the left-side drive mechanism 10a and the right-side drive mechanism 10b, the rotational force of the pinion gear 22 meshing with the rack member 23 causes the left and right slide members 14 to reciprocate synchronously in the front-to-rear direction (Y1-Y2 direction).

[0028] As shown in Figures 4 and 5, accessory members 25 are fixed to both left and right ends of the rotation support portion 4c of the case 4 provided on the display member 3. A support hole 25a is opened in each of the left and right accessory members 25, and the front connecting shaft 17 fixed to the slide member 14 is inserted into the support hole 25a. The support hole 25a is an elongated hole extending along an arc trajectory. The support hole 25a rotates while being restrained by the front connecting shaft 17, thereby rotating the display member 3 between a display position and a non-display position.

[0029] As shown in FIGS. 1 and 2, the left-side drive mechanism 10a and the right-side drive mechanism 10b each have a link mechanism 30 that serves as a switching mechanism. Each link mechanism 30 has a drive link 31 and a driven link 32, which are rotatably connected by a connecting pin 33. As shown in FIGS. 3 and 4, the drive link 31 is positioned in the gap between the outer slide portion 15 and the inner slide portion 16 of the slide member 14 so as to overlap a cam member 38 (described later). A drive pin 34 that protrudes into the gap is fixed to the inner slide portion 16, and this drive pin 34 is rotatably inserted into a hole 31a that opens at the tip of the drive link 31. When the slide member 14 moves linearly in the forward / rearward direction, the drive link 31 is rotated, resulting in a slight deviation between the linear movement path of the drive pin 34 and the movement path of the hole 31a. To absorb this misalignment, the inner diameter of hole 31a is made slightly larger than the diameter of drive pin 34. Follower pins 35 are fixed to both sides of case 4 of display member 3. Hole 32a opens at the tip of follower link 32, and follower pin 35 is rotatably inserted into hole 32a.

[0030] As shown in FIG. 4, the cam member 38 is located between the outer slide portion 15 and the inner slide portion 16 of the slide member 14. A fixed protrusion 38a that protrudes to the left (X1 side) is integrally formed with the cam member 38, and the fixed protrusion 38a is fixed to the vertical support piece 11a of the outer bracket 11. When the connecting drive shaft 21 and the pinion gear 22 rotate, the left and right slide members 14 move forward and backward, but the cam member 38 does not move because it is fixed to the outer bracket 11. As shown in FIGS. 5 to 7, a guide cam (a guide slot or guide groove) 39 is formed in the cam member 38, and an attitude control protrusion 36 fixed to the end of the rear side (Y1 side) of the drive link 31 is inserted into the guide cam 39. The attitude control protrusion 36 is a sliding pin that slides within the guide cam 39 or a roller that rolls within the guide cam 39. The rear end of guide cam 39 is display position guide portion 39a formed parallel to the movement direction of slide member 14, and the front end of guide cam 39 is non-display position guide portion 39b formed parallel to the movement direction of slide member 14. Between display position guide portion 39a and non-display position guide portion 39b is inclined guide portion 39c that is inclined with respect to the movement direction of slide member 14.

[0031] As shown in FIG. 5, a rotating body 27 and a rotary support 28 that supports the rotating body 27 are supported on an accessory member 25 fixed to a rotation support portion 4c of a case 4 that forms the display member 3. As shown enlarged in FIGS. 8 and 9, the rotary support 28 is made by bending an elastically deformable metal plate, and is integrally formed with a cantilever (a cantilever beam that serves as a leaf spring) 28a, which is a spring member, and a holder 28b formed at the free end of the cantilever 28a. The rotating body 27 is a roller and is rotatably supported on a support shaft 29 fixed to the holder 28b. The accessory member 25 is made of a metal plate and has a support plate portion 25b. A fixed block 26 is fixed to the inner surface of the support plate portion 25b, and the fixed end of the cantilever 28a is fixed to the fixed block 26 by a screw 26a. Note that the fixed end of the cantilever 28a may be directly fixed to the case 4 of the display member 3, rather than being supported by the accessory member 25.

[0032] As shown in Figures 1, 2, and 5, the movable display device 1 is provided with a display-side restriction mechanism 40a and a non-display-side restriction mechanism 40b. The display-side restriction mechanism 40a is provided on each of the left and right sides of the movable display device 1, and the non-display-side restriction mechanism 40b is also provided on each of the left and right sides of the movable display device 1. The display-side restriction mechanism 40a and the non-display-side restriction mechanism 40b are provided at an interval in the front-to-rear direction (Y1-Y2 direction). The display-side restriction mechanism 40a is provided on the rear side (Y1 side), and the non-display-side restriction mechanism 40b is provided on the front side (Y2 side). The display-side restriction mechanism 40a includes a portion of the outer bracket 11 fixed to the left and right support parts 2a, 2b, and the non-display-side restriction mechanism 40b includes a portion of a restriction plate 43 fixed to the front portions of the support parts 2a, 2b.

[0033] As shown enlarged in FIG. 8, the display-side regulating mechanism 40a is composed of a display-side regulating surface 41 formed on the underside of the front end (Y2-side end) of the horizontal support piece 11b of the outer bracket 11, the cantilever 28a, and the rotating body 27. The display-side regulating surface 41 has a horizontal regulating surface 41a parallel to the XY plane and an inclined regulating surface 41b that is continuous with the horizontal regulating surface 41a and slopes upward toward the front (Y2 direction). As shown enlarged in FIG. 9, the non-display-side regulating mechanism 40b is composed of a non-display-side regulating surface 42 formed on the underside of the rear end (Y1-side end) of the regulating plate 43, the cantilever 28a, and the rotating body 27. The non-display-side regulating surface 42 has a horizontal regulating surface 42a parallel to the XY plane and an inclined regulating surface 42b that is continuous with the horizontal regulating surface 42a and slopes upward toward the rear (Y1 direction).

[0034] 10 and 11 show a holding mechanism 50 that holds the case 4 of the display member 3, which is lifted when the display member 3 transitions to the non-display position, so that it does not move in the direction of gravity (Z2 direction). The holding mechanism 50 has a holding protrusion 51 provided on the support side and a riding portion 53 provided on the tip 4d of the case 4 of the display member 3. As also shown in FIG. 5, the holding protrusion 51 is a holding roller that is rotatably supported on a roller shaft 52 fixed to the vertical support piece 11a of the outer bracket 11. The riding portion 53 is formed on a part of the case 4 of the display member 3 and has a riding surface 53a and a riding guide surface 53b that is continuous with the riding surface 53a and is inclined in a direction away from the back surface 4b of the case 4 as it approaches the rotation support portion 4c of the case 4.

[0035] Next, the operation of the movable display device 1 will be described. 1, 3, and 5, in the left-side drive mechanism 10a and the right-side drive mechanism 10b, the slide member 14 is guided by the fixed rail 13 to the rearmost position (Y1 direction) where it is stopped at the display setting position. At this time, the link mechanism 30 operates to rotate the display member 3 to the display posture, and the case 4 of the display member 3 rotates counterclockwise around the front connecting shaft 17 as a fulcrum, with the tip 4d of the case 4 facing the direction of gravity (Z2 direction). The support parts 2a and 2b of the movable display device 1 are fixed to the ceiling of the vehicle interior, etc., and the display screen appearing on the front surface 4a of the case 4 is directed diagonally downward and forward, allowing passengers in the vehicle interior to view the display screen.

[0036] 8(A), when the slide member 14 stops at the rear display setting position and the display member 3 rotates counterclockwise to assume the display posture, in the display-side regulation mechanism 40a, the rotating body 27 abuts against the horizontal regulation surface 41a of the display-side regulation surface 41 formed integrally with the outer bracket 11. The rotating body 27 is pressed against the horizontal regulation surface 41a by the flexural elastic force of the cantilever 28a, which is a spring member, and the reaction force to this pressing force regulates the display member 3 without causing any movement such as rattle.

[0037] When an operation is performed to switch the display member 3 from the display position to the non-display position, a motor mounted on the slide member 14 of the right-side drive mechanism 10b applies a rotational force to the pinion gear 22 fixed to the right end of the connecting drive shaft 21. As the connecting drive shaft 21 is driven counterclockwise, the pinion gear 22 rolls on the rack teeth of the rack member 23 in both the left-side drive mechanism 10a and the right-side drive mechanism 10b, causing the slide member 14 to move forward (in the Y2 direction). The operation of the drive mechanism when the slide member 14 moves forward is shown in Figures 5 to 7. The slide member 14 is provided with a front connecting shaft 17 that supports the display member 3 and a drive pin 34 connected to the drive link 31, so the display member 3 and the drive link 31 move forward together with the slide member 14. During this process, the attitude control protrusion 36 on the drive link 31 moves along the inclined guide portion 39c of the guide cam 39, causing the drive link 31 to rotate counterclockwise around the drive pin 34 as a fulcrum. The rotational force is transmitted to the case 4 of the display member 3 via the driven link 32, causing the display member 3 to rotate clockwise around the front connecting shaft 17 as a fulcrum. As shown in Figures 2 and 7, when the slide member 14 reaches the non-display setting position, which is the forward end point of its movement, a position sensor (not shown) detects this and stops the motor, ending the forward movement of the slide member 14 and causing the display member 3 to assume a substantially horizontal non-display position (storage position).

[0038] As shown in FIG. 9(B), when slide member 14 stops at the forward non-display setting position and display member 3 rotates clockwise to assume the non-display posture, in non-display-side restricting mechanism 40b, rotating body 27 abuts against horizontal restricting surface 42a of non-display-side restricting surface 42 formed integrally with restricting plate 43. Rotating body 27 is pressed against horizontal restricting surface 42a by the flexural elastic force of cantilever 28a, and the reaction force to this pressing force restricts display member 3 without causing any movement such as rattle. When slide member 14 moves to the non-display setting position, as shown in FIGS. 9(A) and 9(B), rotating body 27 rolls from inclined restricting surface 42b to horizontal restricting surface 42a. Therefore, the load acting on slide member 14 from non-display-side restricting mechanism 40b becomes a rolling resistance, and display device 3 can be restricted in the non-display posture with a relatively small load. This also applies when the slide member 14 moves toward the display setting position and the rotating body 27 rolls from the inclined restriction surface 41b to the horizontal restriction surface 41a as shown in FIGS. 8(A) and 8(B).

[0039] Immediately after the slide member 14 begins to move forward from the display setting position shown in Fig. 5, the attitude control protrusion 36 provided on the drive link 31 is positioned in the display position guide portion 39a of the guide cam 39. When the slide member 14 reaches the non-display setting position as shown in Fig. 7, the attitude control protrusion 36 is positioned in the non-display position guide portion 39b of the guide cam 39. Because the display position guide portion 39a and the non-display position guide portion 39b of the guide cam 39 extend parallel to the direction of movement of the slide member 14, the load due to friction and the like when the attitude control protrusion 36 moves through these guide portions 39a and 39b is small. As shown in Fig. 6, when the slide member 14 is moving between the display setting position and the non-display setting position, the attitude control protrusion 36 moves along the inclined guide portion 39c, and the forward moving force of the attitude control protrusion 36 acts on the inclined portion of the guide cam 39, so the moving load acting on the attitude control protrusion 36 is large.

[0040] In the display-side restricting mechanism 40a, when the attitude control protrusion 36 is positioned in the display attitude guide portion 39a of the guide cam 39, the rotating body 27 is pressed against the horizontal restricting surface 41a, and in the non-display-side restricting mechanism 40b, when the attitude control protrusion 36 is positioned in the non-display attitude guide portion 39b of the guide cam 39, the rotating body 27 is pressed against the horizontal restricting surface 42a. When the attitude control protrusion 36 moves along the inclined guide portion 39c of the guide cam 39, the rotating body 27 moves away from both the horizontal restricting surface 41a and the horizontal restricting surface 42a, and the display member 3 is not subjected to restricting forces from either the display-side restricting mechanism 40a or the non-display-side restricting member 40b. In the movable display device 1, the display member 3 rotates at its tip 4d in both the gravity direction and the anti-gravity direction, which places a very large load on the motor. Therefore, when the posture control protrusion 36 moves along the inclined guide portion 39c of the guide cam 39 and the load from the guide cam 39 is large, the restricting forces acting on the display member 3 from both the display side restricting mechanism 40a and the non-display side restricting member 40b are released, thereby preventing the operating load of the movable display device 1 from becoming excessive.

[0041] When the slide member 14 moves forward (in the Y2 direction) to the non-display position, in the non-display-side restriction mechanism 40b, the rotating body 27 is guided by the inclined restriction surface 41b of the non-display-side restriction surface 42 and rolls to the horizontal restriction surface 41a, as shown in FIG. 9A. During this time, the rotating body 27 is pressed against the inclined restriction surface 41b and the horizontal restriction surface 41a by the flexural elastic force of the cantilever 28a. FIG. 12A is an explanatory diagram of the load when the rotating body 27 is pressed against the non-display-side restriction surface 42. As shown in FIG. 7, the display member 3 and the accessory member 25 rotate clockwise while the slide member 14 moves to the non-display position. Therefore, before the rotating body 27 hits the non-display-side restriction surface 42, the cantilever 28a is oriented clockwise, and the cantilever 28a extends obliquely toward the forward movement direction (Y2 direction) of the slide member 14. 12A shows the center line O of the cantilever 28a when it is assumed not to be bent. When the sliding member 14 and the display member 3 reach the non-display position, the direction of relative movement of the rotating body 27 with respect to the non-display-side restricting surface 42 is defined as the restricting advance direction Sy2. Before the rotating body 27 abuts against the inclined restricting surface 42b of the non-display-side restricting surface 42, the center line O is tilted in a direction in which the free end side is positioned closer to the restricting advance direction Sy2 than the fixed end side. When the rotating body 27 is pressed against the inclined restricting surface 42b and the horizontal restricting surface 42a, the cantilever 28a is bent and deformed in the restricting advance direction Sy2, and the free end 28d continues to tilt in a direction in which the free end 28d is positioned closer to the restricting advance direction Sy2 than the fixed end 28c.

[0042] 12(A), let Fy2 be the moving force of the slide member 14 acting on the axial center of the support shaft 29 of the rotating body 27, and Fg be the contact reaction force acting on the axial center of the support shaft 29 from the contact point T between the rotating body 27 and the regulating surface. A movement vector Fr, which is the vector sum of vectors Fy2 and Fg, acts on the axial center of the support shaft 29. Also, a spring reaction force moment Mr acts in the counterclockwise direction as the cantilever 28a, which is bent toward the regulating advance direction Sy2, attempts to elastically return to its original position. Because the moment due to the movement vector Fr is in the opposite direction to the reaction force moment Mr, the pressing force Ft acting from the rotating body 27 on the non-display-side regulating surface 42 at the contact point T is reduced, and the rolling frictional resistance force fy2 of the rotating body 27 is also reduced. 12(A), when the rotating body 27 is pressed against the inclined restriction surface 42b and the horizontal restriction surface 42a, the cantilever 28a tilts to the left in the figure, opposite to the restricted travel direction Sy2, and if we assume that the cantilever 28a is bent toward the Y1 side of the center line O, the moment Mr of the spring reaction force will be clockwise, the same direction as the moment due to the movement vector Fr. Therefore, the pressing force Ft increases, and the rolling friction resistance force fy2 increases. In the movable display device 1 of this embodiment, by continuing to tilt the cantilever 28a forward in the restricted travel direction Sy2 and bending it forward in the restricted travel direction Sy2, it is possible to reduce the movement load due to the restoring elastic force of the cantilever 28a.

[0043] When the slide member 14 moves backward (in the Y1 direction) from the closed position of the display member 3 shown in Figures 2 and 7 to return to the display setting position shown in Figure 5, the display member 3 is rotated counterclockwise. The rotation support 28 supported by the accessory member 25 also rotates counterclockwise, so that the cantilever 28a assumes a position facing diagonally upward and backward (in the Y1 direction). In this position, as shown in Figure 8(B), the rotating body 27 supported by the cantilever 28a is guided by the inclined restriction surface 41b of the display-side restriction surface 41, and as shown in Figure 8(A), the rotating body 27 rolls while being pressed against the horizontal restriction surface 41a.

[0044] As shown in FIG. 12B , when the sliding member 14 and the display member 3 reach the display posture, the regulating direction Sy1, which is the relative movement direction of the rotating body 27 with respect to the display-side regulating surface 41, coincides with the Y1 direction. The center line O of the cantilever 28a in the free state continues to tilt so that the free end is closer to the regulating direction Sy1 than the fixed end. When the rotating body 27 is pressed against the display-side regulating surface 41, the cantilever 28a bends toward the regulating direction Sy1. At this time, the moment due to the movement vector Fr acting on the center of the axis of the support shaft 29 of the rotating body 27 and the reaction moment Mr, which attempts to restore the bending deformation of the cantilever 28a, are opposite in direction. Therefore, at the contact point T, the pressing force Ft acting from the rotating body 27 on the display-side regulating surface 41 is reduced, and the rolling frictional resistance force fy1 of the rotating body 27 is also reduced.

[0045] 10 shows the state immediately before the slide member 14 moves forward (in the Y2 direction) to the non-display position shown in FIG. 7. At this time, in the holding mechanism 50, the riding guide surface 53b provided near the tip 4d of the back surface 4b of the case 4 of the display member 3 comes into contact with the upper part of the holding protrusion 51 supported by the outer bracket 11. As the display member 3 further moves forward (in the Y2 direction) together with the slide member 14, the riding guide surface 53b begins to ride up onto the holding protrusion 51, and when the slide member 14 reaches the non-display position and stops, as shown in FIG. 11, the riding surface 53a completely rides up onto the holding protrusion 51. Because the portion of the display member 3 on the tip 4d side is held by the holding mechanism 50, the display member 3 in the non-display position can maintain its position without moving in the direction of gravity or rattling even when subjected to vehicle vibrations, etc.

[0046] As a modification of the present invention, in each of display-side and non-display-side restricting mechanisms 40a and 40b, cantilever 28a and rotating body 27 may be supported on support portions 2a and 2b, and display-side restricting surface 41 and non-display-side restricting surface 42 may be supported on display member 3 or accessory member 25. In this modification, restricting surfaces 41 and 42 move in the front-to-rear direction (Y1-Y2 direction) without rotating body 27 moving as shown in FIG. 12 . However, in this case as well, when the relative movement direction of rotating body 27 with respect to restricting surfaces 41 and 42 is defined as restricted advancement directions Sy1 and Sy2, by positioning contact point T between rotating body 27 and the restricting surface further forward in restricted advancement directions Sy1 and Sy2 than center line O of cantilever 28a in the free state, it is possible to reduce the movement load resistance due to the flexural elasticity of cantilever 28a.

[0047] In addition, the cantilever 28a, the rotor 27, and the regulating surface constitute a regulating mechanism. It is also possible to use only one of the display-side restricting mechanism 40a and the non-display-side restricting mechanism 40b, and use another restricting member for the other to restrict the display member 3. The cantilever is not limited to being plate-shaped, and the cross section may be circular or elliptical. Furthermore, the spring member that presses the rotor 27 against the restricting surface may be a torsion spring or a coil spring instead of a cantilever.

[0048] In the above embodiment, a link mechanism 30 is used as a switching mechanism for switching the position of the display member 3, but instead of the link mechanism 30, a rotating cam member and an arm that transmits the rotational force of the rotating cam member to switch the position of the display member 3 may be used. [Explanation of symbols]

[0049] 1 Movable display device 2a,2b Support part 3 Display components 4 cases 4a front 4b Back 4c Rotation support part 4d tip 10a Left side drive mechanism 10b Right side drive mechanism 11 Outer bracket 12 Inner bracket 14 Slide member 17 Front connection shaft 21 Connecting drive shaft 22 Pinion gear 23 Rack components 25 Accessory parts 27 Rotating Body 28a Cantilever 30 Link mechanism (switching mechanism) 34 Drive pin 36 Attitude control protrusion 38 Cam member 39 Guide Cam 39c Incline guide 40a Display side regulation mechanism 40b Hidden side regulation mechanism 41 Display side regulation surface 42 Non-display side regulation surface 41a,42a Horizontal control surface 41b,42b Incline regulation surface 50 Retention mechanism 51 Holding protrusion 53a Riding surface O Centerline of cantilever Sy1,Sy2 Regulation direction T contact part

Claims

1. A movable display device including a support portion, a display member, and a drive mechanism that rotates the display member between a display position and a non-display position, a restricting mechanism that restricts movement of the display member when the display member reaches at least one of the display position and the non-display position, A movable display device characterized in that the regulating mechanism has a rotating body provided on either the support part or the display member or an accessory member that rotates together with the display member, a regulating surface provided on the other, and a spring member that presses the rotating body and the regulating surface together.

2. the spring member is an elastically deformable cantilever, and the rotor is supported on a free end side of the cantilever; When the direction of relative movement of the rotating body with respect to the regulating surface when the display member reaches at least one of the display position and the non-display position is defined as a regulating advancement direction, 2. The movable display device according to claim 1, wherein when the rotating body is pressed against the regulating surface, the cantilever is inclined so that the free end is positioned closer to the regulating direction of travel than the fixed end.

3. a display-side restricting mechanism that restricts movement of the display member when the display member reaches the display position, and a non-display-side restricting mechanism that restricts movement of the display member when the display member reaches the non-display position, A movable display device as described in claim 2, wherein the cantilever is inclined so that its free end is positioned closer to the direction of restriction than the fixed end, both when the display member is restricted by the display side restriction mechanism and when the display member is restricted by the non-display side restriction mechanism.

4. The drive mechanism a slide member on which the display member is rotatably supported; a power source that reciprocates the slide member to move it between a display setting position and a non-display setting position; a switching mechanism that rotates the display member toward the display posture by a moving force when the sliding member moves to the display setting position, and rotates the display member toward the non-display posture by a moving force when the sliding member moves to the non-display setting position, 4. The movable display device according to claim 3, wherein the display-side restricting mechanism and the non-display-side restricting mechanism are arranged with a gap in the moving direction of the slide member.

5. the cantilever and the rotating body are supported by the display member or an accessory member that rotates together with the display member, When the slide member moves between the display setting position and the non-display setting position, the display member rotates and the orientation of the cantilever is switched, A movable display device as described in claim 4, wherein the cantilever can be tilted in a direction in which the free end is positioned further toward the direction of restriction than the fixed end, both when the display member is restricted by the display side restriction mechanism and when the display member is restricted by the non-display side restriction mechanism.

6. A support part; a slide member supported on the support portion so as to be reciprocally movable in a direction intersecting the direction of gravity; a display member rotatably supported by the slide member; a power source that reciprocates the slide member between a display setting position and a non-display setting position; a switching mechanism that rotates the display member toward a display position in which a tip end portion on the opposite side to the rotation support side faces the direction of gravity by a moving force when the slide member moves to the display setting position, and rotates the display member toward a non-display position in which the tip end portion is raised by a moving force when the slide member moves to the non-display setting position; a display-side restricting mechanism that restricts movement of the display member when in the display position, and a non-display-side restricting mechanism that restricts movement of the display member when in the non-display position, A movable display device characterized in that the display member is not restricted by either the display side restricting mechanism or the non-display side restricting mechanism when the sliding member is moving between the display setting position and the non-display setting position.

7. a guide cam is provided to guide the switching mechanism when the slide member moves; the guide cam is provided with an inclined guide portion inclined with respect to the moving direction of the slide member, and when the slide member moves to an intermediate position between the display setting position and the non-display setting position, the switching mechanism is guided by the inclined guide portion; 7. The movable display device according to claim 6, wherein when the switching mechanism is guided by the inclined guide portion, the display member is not restricted by either the display-side restricting mechanism or the non-display-side restricting mechanism.

8. A movable display device as described in claim 6 or 7, wherein the display side regulating mechanism and the non-display side regulating mechanism have a rotating body provided on either the support part or the display member or an accessory member that rotates together with the display member, a regulating surface provided on the other, and a spring member that presses the rotating body against the regulating surface.

9. A movable display device as described in claim 6 or 7, provided with a holding mechanism that holds the display member rotated to the non-display position so that it does not move in the direction of gravity due to the moving force when the sliding member moves toward the non-display setting portion.

Images