Movable display device

Abstract

The purpose of the present invention is to provide a movable display device provided with a restriction mechanism that reliably restricts the movement of a display member with a low load when the display member has moved to at least one of a display posture and a non-display posture. [Solution] A display member (3) is rotatably supported by a sliding member (14), and a rotating body (27) supported by a cantilever (28a) is provided on an accessory member (25) that rotates together with the display member (3). A display-side restricting mechanism (40a) and a non-display-side restricting mechanism (40b) are provided on the support portion, the rotating body (27) is pressed against restricting surfaces provided on the display-side restricting mechanism (40a) and the non-display-side restricting mechanism (40b), and the display member (3) is restricted so as not to move in the display attitude and the non-display attitude.

Description

Technical Field

[0001] The present invention relates to a movable display device that can rotate a display member to set it to a display posture and a non-display posture, and restricts the display member to not move in at least one of the display posture and the non-display posture. Background Art

[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 unit installed on the ceiling of a passenger aircraft guest room. The monitor is supported in the storage unit so that it can rotate about a rotation axis. The monitor storage device is equipped with a motor, which powers the monitor to open and close between a closed state, where it is stored parallel to the storage unit, and an open state, where it is opened at an angle of approximately 110 degrees relative to the storage unit and can be used. A toggle spring is provided between the rotating unit, which rotates with the monitor, and the storage unit. The elastic force of the toggle spring biases the monitor between the closed and open states.

[0003] Patent document 2 describes an invention related to a panel angle switching structure. The panel angle switching structure is used as a car navigation device and comprises a main body, a panel storage portion fixed to the front of the main body, and a panel stored in the panel storage portion. A sliding base is provided inside the main body that is moved in the front-rear direction by an electric drive device. If the sliding base moves backward, the panel becomes upright, and if the sliding base moves forward, the panel becomes inclined. A wall is provided at the front of the sliding base, and a shaft provided on the panel is supported by the wall so as to be rotatable, and a leaf spring fixed to the shaft abuts against the wall. In this structure, the panel is held by the friction force acting between the wall and the leaf spring, thereby preventing mechanical abnormal noise from occurring during vibration.

[0004] Prior art literature:

[0005] Patent Literature:

[0006] Patent Document 1: Japanese Patent Application Laid-Open No. 2014-8825

[0007] Patent Document 2: Japanese Patent Application Laid-Open No. 2019-21696 Summary of the Invention

[0008] Problems to be solved by the invention:

[0009] In the monitor storage device described in Patent Document 1, a large rotational force is applied to the monitor from the toggle spring when the monitor is in the open and closed states. This can easily cause impact forces and noise when the monitor switches between states. Furthermore, a large driving force is required to rotate the toggle spring when rotating the monitor from the open to the closed state, and vice versa. Consequently, a constant load is applied to the drive mechanism that rotates the monitor, which can easily cause wear and tear.

[0010] In the panel angle switching structure described in Patent Document 2, when the panel switches from the upright state to the inclined state, the friction between the wall and the leaf spring always acts as a load, so the power loss is large and wear is likely to occur between the wall and the leaf spring.

[0011] The present invention solves the above-mentioned conventional problems and aims to provide a movable display device capable of stabilizing a display member in at least one of a display posture and a non-display posture, while suppressing an increase in a load for stabilizing the display member in each posture.

[0012] Means used to solve the problem:

[0013] The present invention relates to a movable display device comprising a support portion, a display component, and a drive mechanism for rotating the display component to a display posture and a non-display posture, wherein:

[0014] A restriction mechanism is provided for restricting movement of the display member when the display member assumes at least one of the display attitude and the non-display attitude.

[0015] The limiting mechanism includes: a rotating body provided on one of the supporting portion and the display component or an accessory component that rotates together with the display component; a limiting surface provided on the other of the supporting portion and the display component or an accessory component that rotates together with the display component; and a spring component that presses the rotating body against the limiting surface.

[0016] In the movable display device of the present invention, it is preferable that the spring member is an elastically deformable cantilever, and the rotating body is supported on a free end side of the cantilever.

[0017] When the relative movement direction of the rotating body with respect to the restriction surface when the display member is in at least one of the display posture and the non-display posture is defined as the restricted travel direction,

[0018] When the rotating body is pressed against the restriction surface, the cantilever is inclined in a direction such that the free end of the cantilever is located closer to the restricted travel direction side than the fixed end.

[0019] The movable display device of the present invention can be configured to include: a display-side restriction mechanism for restricting movement of the display member when the display member is in the display posture; and a non-display-side restriction mechanism for restricting movement of the display member when the display member is in the non-display posture.

[0020] The cantilever is inclined in a direction such that the free end of the cantilever is located closer to the restricted travel direction than the fixed end both when the display unit is restricted by the display-side restriction mechanism and when the display unit is restricted by the non-display-side restriction mechanism.

[0021] For example, in the movable display device of the present invention, the driving mechanism has:

[0022] a sliding component, supporting the display component so as to be rotatable;

[0023] a power source for causing the sliding member to reciprocate to move toward a display setting position and a non-display setting position; and

[0024] a switching mechanism that rotates the display member toward the display attitude by a moving force when the sliding member moves toward the display setting position, and rotates the display member toward the non-display attitude by a moving force when the sliding member moves toward the non-display setting position,

[0025] The display-side restriction mechanism and the non-display-side restriction mechanism are arranged with a gap therebetween in the moving direction of the sliding member.

[0026] In the movable display device of the present invention, the cantilever and the rotating body are supported on the display member or an auxiliary member that rotates together with the display member.

[0027] When the slide member moves between the display setting position and the non-display setting position, the display member rotates and the direction of the cantilever is switched, thereby

[0028] The cantilever can be tilted in a direction such that the free end of the cantilever is located closer to the restricted travel direction than the fixed end both when the display unit is restricted by the display-side restriction mechanism and when the display unit is restricted by the non-display-side restriction mechanism.

[0029] In addition, the present invention is characterized in that:

[0030] Supporting part;

[0031] a sliding member supported so as to be movable back and forth relative to the support portion in a direction intersecting the direction of gravity;

[0032] A display component supported by the sliding component so as to be rotatable;

[0033] a power source for causing the sliding member to reciprocate between a display setting position and a non-display setting position;

[0034] a switching mechanism that rotates the display member to a display posture in which a front end portion of the display member on the side opposite to the rotation support side faces the direction of gravity by a moving force when the sliding member moves to the non-display setting position, and rotates the display member to a non-display posture in which the front end portion is raised by a moving force when the sliding member moves to the non-display setting position; and

[0035] a display-side restriction mechanism for restricting movement of the display member in the display posture, and a non-display-side restriction mechanism for restricting movement of the display member in the non-display posture,

[0036] When the slide member moves between the display setting position and the non-display setting position, neither the display-side restriction mechanism nor the non-display-side restriction mechanism restricts the display member.

[0037] The movable display device of the present invention may be configured such that a guide cam is provided for guiding the switching mechanism when the sliding member moves.

[0038] The guide cam is provided with an inclined guide portion inclined relative to the moving direction of the sliding member, and when the sliding member moves to a position intermediate between the display setting position and the non-display setting position, the switching mechanism is guided by the inclined guide portion.

[0039] When the switching mechanism is guided by the inclined guide portion, neither the display-side restriction mechanism nor the non-display-side restriction mechanism restricts the display component.

[0040] The movable display device of the present invention is preferably configured such that the display side limiting mechanism and the non-display side limiting mechanism have: a rotating body provided on one of the supporting portion, the display component, or an accessory component that rotates together with the display component; a limiting surface provided on the other of the supporting portion, the display component, or an accessory component that rotates together with the display component; and a spring component that presses the rotating body against the limiting surface.

[0041] The movable display device of the present invention may be configured to include a holding mechanism for holding the display member rotated to the non-display posture so as not to move in the direction of gravity by a moving force when the sliding member moves toward the non-display setting portion.

[0042] Effects of the invention:

[0043] Through the limiting mechanism of the movable display device of the present invention, the rotating body and the limiting surface are pressed, the rotating body rotates, and the display component becomes at least one of the display posture and the non-display posture. Therefore, the load required for the display component to become each posture becomes a rolling load. In the display posture or the non-display posture, the display component can be stabilized and limited with a low load.

[0044] Furthermore, in the movable display device of the present invention, neither the display-side restraint mechanism nor the non-display-side restraint mechanism restrains the display member when the sliding member moves between the display setting position and the non-display setting position. Therefore, even in a movable structure subject to a heavy load when rotating the display member from a display position with the front end facing the direction of gravity to a non-display position with the front end raised, the load generated by the restraint mechanism is prevented from being constantly applied, and the operating load is prevented from being excessive. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 The entire structure of the movable display device according to the embodiment of the present invention is shown in a perspective view showing a state where the display member is in a display posture.

[0046] Figure 2 The entire structure of the movable display device according to the embodiment of the present invention is shown in a perspective view showing a state where the display member is in a non-display posture.

[0047] Figure 3 yes Figure 1 The partially enlarged view is a partial stereoscopic view mainly showing the structure of the support part and the drive mechanism.

[0048] Figure 4 Yes Figure 3 An exploded perspective view of the drive mechanism shown.

[0049] Figure 5 This is a side cross-sectional view showing a state in which a display member is in a display posture in the movable display device according to the embodiment of the present invention.

[0050] Figure 6 This is a side cross-sectional view showing an operating state of a display member in a process of transitioning from a display posture to a non-display posture in a movable display device according to an embodiment of the present invention.

[0051] Figure 7This is a side cross-sectional view showing a state in which a display member is in a non-display posture in the movable display device according to the embodiment of the present invention.

[0052] Figure 8 (A) and (B) are partial enlarged side sectional views showing the operation of the display-side restriction mechanism.

[0053] Figure 9 (A) and (B) are partial enlarged side sectional views showing the operation of the non-display side restriction mechanism.

[0054] Figure 10 The diagram shows a holding mechanism for holding the display member, and is a partial perspective view showing the operation during the process of holding the front end portion of the display member.

[0055] Figure 11 The diagram shows a holding mechanism for holding the display member, and is a partial perspective view showing a state in which the front end portion of the display member is held.

[0056] Figure 12 (A) is an explanatory diagram illustrating the limiting action of the non-display side limiting mechanism. Figure 12 (B) in FIG. 1 is an explanatory diagram for explaining the restricting action of the display-side restricting mechanism.

[0057] Description of reference numerals:

[0058] 1 Movable display device

[0059] 2a, 2b support parts

[0060] 3 Display components

[0061] 4 Shell

[0062] 4a front surface

[0063] 4b back

[0064] 4c Rotation support part

[0065] 4d front end

[0066] 10a Left side drive mechanism

[0067] 10b Right drive mechanism

[0068] 11 Outer bracket

[0069] 12 inner bracket

[0070] 14 sliding parts

[0071] 17 front connecting shaft

[0072] 21 Connecting drive shaft

[0073] 22 small gears

[0074] 23 rack components

[0075] 25 accompanying parts

[0076] 27 Rotating Body

[0077] 28a cantilever

[0078] 30 connecting rod mechanism (switching mechanism)

[0079] 34 drive pin

[0080] 36 attitude control protrusion

[0081] 38 cam components

[0082] 39 guide cam

[0083] 39c inclined guide

[0084] 40a Display side restriction mechanism

[0085] 40b Non-display side restriction mechanism

[0086] 41 Display side limit surface

[0087] 42 Non-display side restriction surface

[0088] 41a, 42a horizontal limiting surfaces

[0089] 41b, 42b inclined limiting surfaces

[0090] 50 holding mechanism

[0091] 51 retaining protrusion

[0092] 53a riding surface

[0093] O Centerline of the cantilever

[0094] Sy1 and Sy2 limit the direction of travel

[0095] T contact part DETAILED DESCRIPTION

[0096] The movable display device 1 according to the embodiment of the present invention is installed on the ceiling of a car cabin and used. Alternatively, the movable display device 1 can be installed on the ceiling of a train cabin, the ceiling of an airplane cabin, or the ceiling of a building.

[0097] In each figure, the Y1-Y2 direction represents the front-to-back direction, with the Y1 direction indicating the rear and the Y2 direction indicating the front. The Y1 direction indicates the direction toward the display setting position, while the Y2 direction indicates the direction toward the non-display setting position. The X1-X2 direction represents the lateral direction, with the X1 direction indicating the left direction and the X2 direction indicating the right direction. The Z1-Z2 direction represents the vertical direction, with the Z1 direction indicating the upward direction and the Z2 direction indicating the downward direction. When the movable display device 1 is installed on the ceiling of a vehicle cabin, the Z2 direction represents the direction of gravity.

[0098] like Figure 1 and Figure 2 As shown, the movable display device 1 includes support portions 2a and 2b. The support portions 2a and 2b are support frames extending in a straight line parallel to each other in the front-to-back direction (Y1-Y2 direction). The support portion 2a is located on the left side (X1 side), and the support portion 2b is located on the right side (X2 side). When the movable display device 1 is fixed to the ceiling of the vehicle cabin, the support portions 2a and 2b are fixed parallel to the XY plane, which is a substantially horizontal plane.

[0099] The movable display device 1 has a display component 3. The display component 3 has a quadrilateral shell 4, and the shell 4 has a front surface 4a and a back surface 4b. Inside the shell 4, a display panel such as a liquid crystal display panel or an electroluminescent panel is accommodated. The display screen of the display panel is presented on the front surface 4a of the shell 4. The shell 4 has a rotation support portion 4c and a front end portion 4d on the opposite side of the rotation support side where the rotation support portion 4c is located. Figure 1 and Figure 5 In the display part 3, the display posture is displayed, the front surface 4a of the housing 4 is slightly downward in the front (Y2 direction), and the front end 4d is directed downward (Z2 direction) as the direction of gravity. Figure 2 and Figure 7 In the embodiment, the display unit 3 is in a non-display position (stored position), the front end portion 4d of the housing 4 is raised upward (in the Z1 direction), and the front surface 4a and the back surface 4b are substantially parallel to the horizontal plane (XY plane).

[0100] like Figure 1 and Figure 2 As shown, a left driving mechanism 10a and a right driving mechanism 10b are provided between the supporting parts 2a, 2b and the display part 3. The driving mechanisms 10a and 10b are Figure 1 and Figure 2 The structures and mechanisms of the components described above, excluding the support sections 2a and 2b, the display section 3, and the display-side restriction mechanism 40a and non-display-side restriction mechanism 40b described later, are shown. The left drive mechanism 10a and the right drive mechanism 10b are plane-symmetrical in the left-right direction (X1-X2). The right drive mechanism 10b is equipped with a motor as a drive source.

[0101] Figure 3 and Figure 4 The left drive mechanism 10a is shown in detail. The left 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. Figure 1 and Figure 2 As shown, the vertical support piece 11a is fixed to the inner side of the support portion 2a facing the right side (X2 side) by screw fastening. The fixed rail 13 is fixed to the right side surface of the vertical support piece 11a by screw fastening. The fixed rail 13 extends in a straight line in the front and rear direction (Y1-Y2 direction). A sliding component 14 is provided on the left side of the driving mechanism 10a. Figure 4 As shown, the sliding member 14 includes an outer sliding portion 15 and an inner sliding portion 16. At the front of the sliding member 14, the outer sliding portion 15 and the inner sliding portion 16 are fixed to each other by a front connecting shaft 17. At the rear, the outer sliding portion 15 and the inner sliding portion 16 are fixed to each other by a rear connecting shaft 18. The outer sliding portion 15 is a movable rail, held by the fixed rail 13 so as to slide freely in the forward and backward directions. The sliding member 14, consisting of the fixed outer sliding portion 15 and the inner sliding portion 16, is supported relative to the support portion 2a for free linear reciprocating movement in the forward and backward directions (Y1-Y2 direction).

[0102] like Figure 1 and Figure 2 As shown, the left drive mechanism 10a and the right drive mechanism 10b are connected by a connecting drive shaft 21. Figure 3 As shown, the connecting drive shaft 21 is supported in the inner bracket 12 in the guide slot 12a formed long in the front-back direction, and the left end (X1 side) of the connecting drive shaft 21 is rotatably supported by a bearing 24 fixed to the inner sliding portion 16. Figure 4 As shown, a rack member 23 is fixed to the lower surface of the horizontal support piece 11b of the outer bracket 11. A pinion 22 is fixed to the left end of the connecting drive shaft 21, and the pinion 22 meshes with rack teeth formed on the lower portion of the rack member 23.

[0103] like Figure 1 and Figure 2As shown, the right drive mechanism 10b is also provided with a sliding member 14. The right end of the connecting drive shaft 21 is rotatably supported by a bearing 24 fixed to the inner sliding portion 16 of the sliding member 14. A pinion 22 is also fixed to the right end of the connecting drive shaft 21. The pinion 22 meshes with the rack teeth of a rack member 23 fixed to the outer bracket 11 of the right drive mechanism 10b. In the right drive mechanism 10b, a motor and a gear train serving as a drive source are supported by the inner sliding portion 16. The power of the motor drives the pinion 22, thereby rotationally driving the connecting drive shaft 21. As a result, in both the left and right drive mechanisms 10a and 10b, the rotational force of the pinion 22 meshing with the rack member 23 causes the left and right sliding members 14 to synchronously move back and forth in the forward and backward directions (Y1-Y2 direction).

[0104] like Figure 4 and Figure 5 As shown, attached components 25 are fixed to the left and right ends of the rotation support portion 4c of the housing 4 provided on the display unit 3. Each of the left and right attached components 25 has a support hole 25a, into which the front connecting shaft 17, which is fixed to the sliding member 14, is inserted. The support hole 25a is an elongated hole extending along a circular arc. The front connecting shaft 17 is constrained by the support holes 25a and rotates, thereby rotating the display unit 3 between the display position and the non-display position.

[0105] like Figure 1 and Figure 2 As shown, the left drive mechanism 10a and the right drive mechanism 10b are each provided with a link mechanism 30 as a switching mechanism. Each link mechanism 30 has a driving link 31 and a driven link 32, and the driving link 31 and the driven link 32 are connected to each other by a connecting pin 33 so as to be rotatable. Figure 3 and Figure 4 As shown, the drive link 31 is located in the gap between the outer sliding portion 15 and the inner sliding portion 16 of the sliding member 14 in a manner overlapping with the cam member 38 described later. A drive pin 34 is fixed to the inner sliding portion 16, protruding into the gap, and the drive pin 34 is rotatably inserted into the hole 31a opened at the front end of the drive link 31. If the sliding member 14 moves linearly in the forward and backward directions, the drive link 31 rotates, so that there is a slight deviation between the linear movement trajectory of the drive pin 34 and the movement trajectory of the hole 31a. In order to absorb this deviation, the inner diameter of the hole 31a is formed to be slightly larger than the diameter of the drive pin 34. Follower pins 35 are fixed to both sides of the housing 4 of the display member 3. A hole 32a is opened at the front end of the follower link 32, and the follower pin 35 is rotatably inserted into the hole 32a.

[0106] like Figure 4As shown, the cam member 38 is located between the outer sliding portion 15 and the inner sliding portion 16 of the sliding member 14. A fixed protrusion 38a protruding to the left (X1 side) is integrally formed on the cam member 38. 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 22 rotate, the left and right sliding members 14 move in the forward and backward directions, but the cam member 38 does not move because it is fixed to the outer bracket 11. Figures 5 to 7 As described, a guide cam (a guide slot or guide groove) 39 is formed in the cam member 38. The posture control protrusion 36 fixed to the rear end (Y1 side) of the drive link 31 is inserted into the guide cam 39. The posture control protrusion 36 is a sliding pin that slides within the guide cam 39 or a roller that rotates within the guide cam 39. The rear end of the guide cam 39 is a display posture guide 39a formed parallel to the movement direction of the slide member 14, while the front end of the guide cam 39 is a non-display posture guide 39b formed parallel to the movement direction of the slide member 14. Between the display posture guide 39a and the non-display posture guide 39b is an inclined guide 39c that is inclined relative to the movement direction of the slide member 14.

[0107] like Figure 5 As shown, the additional component 25 fixed to the rotation support portion 4c of the housing 4 forming the display component 3 supports a rotating body 27 and a rotating support body 28 supporting the rotating body 27. Figure 8 and Figure 9 As shown in the enlarged view, the rotating support body 28 is formed by bending an elastically deformable metal plate, and the cantilever (cantilever beam as a leaf spring) 28a as a spring component and the support frame 28b formed on the free end of the cantilever 28a are formed integrally. The rotating body 27 is a roller, and is supported by a support shaft 29 fixed on the support frame 28b so as to rotate freely. The additional component 25 is formed 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. In addition, the fixed end of the cantilever 28a can also be directly fixed to the housing 4 of the display component 3 without being supported by the additional component 25.

[0108] like Figure 1 、 Figure 2 and Figure 5As shown, a display side limiting mechanism 40a and a non-display side limiting mechanism 40b are provided in the movable display device 1. The display side limiting mechanism 40a is respectively provided on the left and right sides of the movable display device 1, and the non-display side limiting mechanism 40b is also respectively provided on the left and right sides of the movable display device 1. The display side limiting mechanism 40a and the non-display side limiting mechanism 40b are provided at intervals in the front-to-back direction (Y1-Y2 direction). The display side limiting mechanism 40a is provided on the rear side (Y1 side), and the non-display side limiting mechanism 40b is provided on the front side (Y2 side). The display side limiting mechanism 40a is configured to include a portion of the outer bracket 11 fixed to the left and right support parts 2a, 2b, and the non-display side limiting mechanism 40b is configured to include a portion of the limiting plate 43 fixed to the front part of the support parts 2a, 2b.

[0109] like Figure 8 As shown in the enlarged view, the display side restriction mechanism 40a is composed of a display side restriction surface 41 formed on the lower surface of the front end portion (Y2 side end portion) of the horizontal support piece 11b of the outer bracket 11, the cantilever 28a, and the rotating body 27. The display side restriction surface 41 includes a horizontal restriction surface 41a parallel to the XY plane, and an inclined restriction surface 41b that is continuous with the horizontal restriction surface 41a and inclined upward toward the front (Y2 direction). Figure 9 As shown in the enlarged view, the non-display-side restriction mechanism 40b is composed of a non-display-side restriction surface 42 formed on the lower surface of the rear end portion (Y1-side end portion) of the restriction plate 43, the cantilever 28a, and the rotating body 27. The non-display-side restriction surface 42 includes a horizontal restriction surface 42a parallel to the XY plane and an inclined restriction surface 42b continuous with the horizontal restriction surface 42a and inclined upward toward the rear (Y1 direction).

[0110] Figure 10 and Figure 11 The holding mechanism 50 is a structure for holding the housing 4 of the display unit 3, which is lifted when the display unit 3 is turned to a non-display position, so as not to move in the direction of gravity (Z2 direction). The holding mechanism 50 includes a holding protrusion 51 provided on the support side and a riding portion 53 provided on the front end portion 4d of the housing 4 of the display unit 3. Figure 5 As also shown, the retaining protrusion 51 is a retaining roller and is rotatably supported by a roller shaft 52 fixed to the vertical support piece 11a of the outer bracket 11. The riding portion 53 is formed in a portion of the housing 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 housing 4 as it moves toward the rotation support portion 4c of the housing 4.

[0111] Next, the operation of the movable display device 1 will be described.

[0112] exist Figure 1 、 Figure 3 and Figure 5 In the left and right drive mechanisms 10a and 10b, the slide member 14 is guided by the fixed rail 13 and moves to the rearmost (Y1 direction) display setting position, where it stops. At this point, the display member 3 rotates to the display position through the action of the link mechanism 30. The housing 4 of the display member 3 rotates counterclockwise around the front connecting shaft 17, with the front end 4d of the housing 4 facing the direction of gravity (Z2 direction). In the movable display device 1, the support members 2a and 2b are fixed to the ceiling of a vehicle interior, etc. The display screen displayed on the front surface 4a of the housing 4 faces forward and diagonally downward, allowing passengers in the vehicle to visually view the display screen.

[0113] like Figure 8 As shown in (A), when the slide member 14 stops at the rear display setting position and the display member 3 rotates counterclockwise to assume the display position, the rotating body 27 of the display-side restricting mechanism 40a contacts the horizontal restricting surface 41a of the display-side restricting surface 41 integrally formed with the outer bracket 11. The rotating body 27 is pressed against the horizontal restricting surface 41a by the flexural elastic force of the cantilever 28a, which serves as a spring member. The reaction force of this pressing force restrains the display member 3, preventing it from loosening or otherwise moving.

[0114] When an operation is performed to switch the display part 3 from the display posture to the non-display posture, a rotational force is applied from the motor mounted on the slide part 14 of the right drive mechanism 10b to the pinion 22 fixed to the right end of the connecting drive shaft 21. The connecting drive shaft 21 is driven in the counterclockwise direction, so that the pinion 22 rotates the rack teeth of the rack part 23 in both the left drive mechanism 10a and the right drive mechanism 10b, and the slide part 14 moves forward (in the Y2 direction). Figure 5 、 Figures 6 and 7 The actions of the driving mechanism when the sliding part 14 moves forward are shown in sequence. The sliding part 14 is provided with a front connecting shaft 17 that supports the display part 3 and a driving pin 34 connected to the driving link 31, so that the display part 3 and the driving link 31 move forward together with the sliding part 14. In this process, the posture control protrusion 36 provided on the driving link 31 moves the inclined guide part 39c of the guide cam 39, and the driving link 31 rotates counterclockwise with the driving pin 34 as the fulcrum. The rotational force is transmitted to the housing 4 of the display part 3 via the driven link 32, and the display part 3 rotates clockwise with the front connecting shaft 17 as the fulcrum. As shown Figure 2 and Figure 7As shown, if the sliding part 14 reaches the non-display setting position as the front movement end point, the position sensor (not shown) detects this and the motor stops, the forward movement of the sliding part 14 ends, and the display part 3 becomes a non-display posture (storage posture) in a roughly horizontal posture.

[0115] like Figure 9 As shown in (B), if the sliding part 14 stops at the non-display setting position in the front, and the display part 3 rotates clockwise to become a non-display posture, then in the non-display side limiting mechanism 40b, the rotating body 27 abuts against the horizontal limiting surface 42a of the non-display side limiting surface 42 formed integrally with the limiting plate 43. The rotating body 27 is pressed to the horizontal limiting surface 42a by the flexural elastic force of the cantilever 28a, so that the display part 3 is restricted from loosening or other movement by the reaction force of the pressing force. When the sliding part 14 moves to the non-display setting position, as shown in FIG. Figure 9 As shown in (A) and (B), the rotating body 27 rotates from the inclined limiting surface 42b to the horizontal limiting surface 42a, so the load acting on the sliding member 14 from the non-display side limiting mechanism 40b becomes rolling resistance, which can limit the display device 3 to the non-display posture with a smaller load. When the sliding member 14 moves to the display setting position, as shown in FIG. Figure 8 As shown in (A) and (B) of FIG. 1 , the same applies when the rotating body 27 rotates from the inclined restriction surface 41 b to the horizontal restriction surface 41 a.

[0116] The sliding member 14 is just Figure 5 After the display setting position shown starts to move forward, the posture control protrusion 36 provided on the driving link 31 is located at the display posture guide portion 39a of the guide cam 39, and the sliding member 14 is as shown in FIG. Figure 7 When the non-display setting position is reached, the posture control protrusion 36 is located on the non-display posture guide portion 39b of the guide cam 39. The display posture guide portion 39a and the non-display posture guide portion 39b of the guide cam 39 extend parallel to the moving direction of the slide member 14. Therefore, the load caused by friction when the posture control protrusion 36 moves on these guide portions 39a and 39b is small. Figure 6 As shown, when the sliding part 14 moves between the display setting position and the non-display setting position, the posture control protrusion 36 moves on the inclined guide part 39c, and the forward moving force of the posture control protrusion 36 acts on the inclined part of the guide cam 39, so the moving load acting on the posture control protrusion 36 becomes larger.

[0117] In the display-side restraint mechanism 40a, when the posture control protrusion 36 is located in the display-position guide 39a of the guide cam 39, the rotating body 27 is pressed against the horizontal restraint surface 41a. In the non-display-side restraint mechanism 40b, when the posture control protrusion 36 is located in the non-display-position guide 39b of the guide cam 39, the rotating body 27 is pressed against the horizontal restraint surface 42a. As the posture control protrusion 36 moves on the inclined guide 39c of the guide cam 39, the rotating body 27 moves away from both the horizontal restraint surface 41a and the horizontal restraint surface 42a. The display unit 3 is not restrained by either the display-side restraint mechanism 40a or the non-display-side restraint 40b. In the movable display device 1, the display unit 3 rotates at its front end 4d in both the direction of gravity and the direction counter to gravity, resulting in a very large load on the motor. Therefore, when the posture control protrusion 36 moves on the inclined guide portion 39c of the guide cam 39 and the load caused by the guide cam 39 is large, the restricting force acting on the display part 3 from both the display side restricting mechanism 40a and the non-display side restricting part 40b is released, thereby suppressing the situation where the operating load of the movable display device 1 is excessive.

[0118] When the slide member 14 moves forward (in the Y2 direction) and reaches the non-display setting position, in the non-display side restriction mechanism 40b, as shown in FIG. Figure 9 As shown in (A), the rotating body 27 is guided by the inclined limiting surface 41b of the non-display side limiting surface 42 and rotates to reach the horizontal limiting surface 41a. During this period, the rotating body 27 is pressed to the inclined limiting surface 41b and the horizontal limiting surface 41a by the flexural elastic force of the cantilever 28a. Figure 12 (A) is an explanatory diagram of the load when the rotating body 27 is pressed against the non-display side restriction surface 42. Figure 7 As shown, while the sliding part 14 moves toward the non-display setting position, the display part 3 and the accessory part 25 rotate in the clockwise direction, so before the rotating body 27 contacts the non-display side limiting surface 42, the cantilever 28a is oriented in the clockwise direction, and the cantilever 28a becomes in a state of extending obliquely toward the forward direction (Y2 direction) of the sliding part 14. Figure 12 (A) represents the centerline O of the cantilever 28a, assuming no bending. Assuming the relative movement direction of the rotating body 27 with respect to the non-display-side restriction surface 42 when the sliding member 14 and the display member 3 are in the non-display position is the restricted travel direction Sy2, the centerline O is tilted in a direction such that the free end side is located closer to the restricted travel direction Sy2 than the fixed end side at the moment before the rotating body 27 contacts the inclined restriction surface 42b of the non-display-side restriction surface 42. When the rotating body 27 is pressed against the inclined restriction surface 42b and the horizontal restriction surface 42a, the cantilever 28a deflects and deforms in the restricted travel direction Sy2, continuously tilting in a direction such that the free end 28d is located closer to the restricted travel direction Sy2 than the fixed end 28c.

[0119] exist Figure 12 In (A), if the moving force of the sliding part 14 acting on the axial center of the support shaft 29 of the rotating body 27 is set to Fy2, and the contact reaction force acting on the axial center of the support shaft 29 from the contact portion T between the rotating body 27 and the limiting surface is set to Fg, then a moving vector Fr, which is the vector sum of the vector Fy2 and the vector Fg, acts on the axial center of the support shaft 29. In addition, the moment Mr of the spring reaction force that the cantilever 28a bent in the limiting travel direction Sy2 wants to elastically return acts in the counterclockwise direction. The direction of the moment based on the moving vector Fr is opposite to the direction of the moment Mr of the reaction force, so that in the contact portion T, the pressing force Ft acting from the rotating body 27 on the non-display side limiting surface 42 is reduced, and the rolling friction resistance fy2 of the rotating body 27 is also reduced. Figure 12 Conversely, when the rotating body 27 is pressed against the inclined limiting surface 42b and the horizontal limiting surface 42a, assuming that the cantilever 28a is tilted to the left in the figure, opposite to the limiting travel direction Sy2, and the cantilever 28a is bent toward the Y1 side relative to the center line O, the moment Mr of the spring reaction force becomes clockwise, in the same direction as the moment based on the movement vector Fr. Therefore, the pressing force Ft increases, and the rolling friction resistance fy2 increases. In the movable display device 1 of the embodiment, by continuously tilting the cantilever 28a toward the front of the limiting travel direction Sy2 and bending toward the front of the limiting travel direction Sy2, the movement load caused by the return elastic force of the cantilever 28a can be reduced.

[0120] The sliding member 14 is Figure 2 and Figure 7 The closed posture of the display part 3 shown is moved toward the rear (Y1 direction) and Figure 5 When the display setting position shown is returned, the display component 3 rotates counterclockwise. The rotating support body 28 supported by the auxiliary component 25 also rotates counterclockwise, so that the cantilever 28a becomes a posture facing backward (Y1 direction) and tilted upward. In this posture, Figure 8 As shown in (B), the rotating body 27 supported by the cantilever 28a is guided by the inclined limiting surface 41b of the display side limiting surface 41, as shown in FIG. Figure 8 As shown in FIG. 1 (A), the rotating body 27 rotates while pressing the horizontal regulating surface 41 a.

[0121] like Figure 12As shown in (B), when the sliding part 14 and the display part 3 are in the display posture, the restricted travel direction Sy1, which is the relative movement direction of the rotating body 27 with respect to the display side restriction surface 41, becomes the Y1 direction, and the center line O of the cantilever 28a when it is in the free state is continuously tilted in such a way that the free end side is located closer to the restricted travel direction Sy1 side than the fixed end side. If the rotating body 27 is pressed against the display side restriction surface 41, the cantilever 28a bends toward the restricted travel direction Sy1. At this time, the moment based on the movement vector Fr acting on the axial center of the support shaft 29 of the rotating body 27 and the reaction force moment Mr of the cantilever 28a that wants to restore the flexural deformation also become opposite to each other. As a result, in the contact portion T, the pressing force Ft acting from the rotating body 27 on the display side restriction surface 41 is reduced, and the rolling friction resistance fy1 of the rotating body 27 is also reduced.

[0122] Figure 10 Indicates that the slide member 14 moves forward (Y2 direction) and is about to reach Figure 7 The state before the non-display setting position is shown. At this time, in the holding mechanism 50, the riding guide surface 53b provided on the back surface 4b of the housing 4 of the display part 3 at a position close to the front end 4d contacts the upper part of the holding protrusion 51 supported by the outer bracket 11. If the display part 3 is further moved forward (Y2 direction) together with the sliding part 14, the riding guide surface 53b starts to ride on the holding protrusion 51. If the sliding part 14 reaches the non-display position and stops, as shown in FIG. Figure 11 As shown, the riding surface 53a is completely mounted on the retaining protrusion 51. The portion of the display unit 3 on the front end portion 4d side is retained by the retaining mechanism 50. Therefore, the display unit 3 in the non-display position does not move in the direction of gravity, and even if the vehicle body vibrates, it does not become loose and maintains its position.

[0123] Furthermore, as a modified example of the present invention, in each of the display side restriction mechanism 40a and the non-display side restriction mechanism 40b, the cantilever 28a and the rotating body 27 may be supported by the supporting parts 2a and 2b, and the display side restriction surface 41 and the non-display side restriction surface 42 may be supported by the display component 3 or the accessory component 25. In this modified example, Figure 12 In the embodiment, the rotating body 27 does not move but the limiting surfaces 41 and 42 move in the forward and backward directions (Y1-Y2 directions). However, in this case, when the relative movement direction of the rotating body 27 relative to the limiting surfaces 41 and 42 is set to the limiting travel directions Sy1 and Sy2, the moving load resistance caused by the flexural elastic force of the cantilever 28a can be reduced by making the contact portion T between the rotating body 27 and the limiting surfaces be located at a position closer to the front of the limiting travel directions Sy1 and Sy2 than the center line O in the free state of the cantilever 28a.

[0124] Alternatively, a restriction mechanism based on the cantilever 28a, the rotating body 27, and the restriction surface may be used in only one of the display-side restriction mechanism 40a and the non-display-side restriction mechanism 40b, while a different restriction member may be used in the other of the display-side restriction mechanism 40a and the non-display-side restriction mechanism 40b to restrict the display unit 3. Furthermore, the cantilever is not limited to a plate shape; its cross-section may also be circular or elliptical. Furthermore, the spring member pressing the rotating body 27 against the restriction surface may be a torsion spring or a coil spring, rather than a cantilever.

[0125] In the above embodiment, the link mechanism 30 is used as the switching mechanism for switching the posture of the display member 3. However, a rotating cam member and an arm that transmits the rotational force of the rotating cam member to switch the posture of the display member 3 may be used instead of the link mechanism 30.

Claims

1. A movable display device comprising a support portion, a display component, and a drive mechanism for rotating the display component to a display position and a non-display position, wherein: A restriction mechanism is provided for restricting movement of the display member when the display member assumes at least one of the display attitude and the non-display attitude. The limiting mechanism includes: a rotating body provided on one of the supporting portion and the display component or an accessory component that rotates together with the display component; a limiting surface provided on the other of the supporting portion and the display component or an accessory component that rotates together with the display component; and a spring component that presses the rotating body and the limiting surface.

2. The movable display device according to claim 1, wherein: The spring member is an elastically deformable cantilever, and the rotating body is supported on the free end side of the cantilever. When the relative movement direction of the rotating body with respect to the restriction surface when the display member is in at least one of the display posture and the non-display posture is defined as the restricted travel direction, When the rotating body is pressed against the restriction surface, the cantilever is inclined in a direction such that the free end of the cantilever is located closer to the restricted travel direction side than the fixed end.

3. The movable display device according to claim 2, wherein: A display-side restriction mechanism for restricting movement of the display member when the display member is in the display posture, and a non-display-side restriction mechanism for restricting movement of the display member when the display member is in the non-display posture are provided. The cantilever is inclined in a direction such that the free end of the cantilever is located closer to the restricted travel direction than the fixed end both when the display unit is restricted by the display-side restriction mechanism and when the display unit is restricted by the non-display-side restriction mechanism.

4. The movable display device according to claim 3, wherein: The driving mechanism comprises: a sliding component, supporting the display component so as to be rotatable; a power source for causing the sliding member to reciprocate toward a display setting position and a non-display setting position; as well as a switching mechanism that rotates the display member toward the display attitude by a moving force when the sliding member moves toward the display setting position, and rotates the display member toward the non-display attitude by a moving force when the sliding member moves toward the non-display setting position, The display-side restriction mechanism and the non-display-side restriction mechanism are arranged with a gap therebetween in the moving direction of the sliding member.

5. The movable display device according to claim 4, wherein: The cantilever and the rotating body are supported on the display component or an attached component that rotates together with the display component. When the slide member moves between the display setting position and the non-display setting position, the display member rotates and the direction of the cantilever is switched, thereby The cantilever can be tilted in a direction such that the free end of the cantilever is located closer to the restricted travel direction than the fixed end both when the display unit is restricted by the display-side restriction mechanism and when the display unit is restricted by the non-display-side restriction mechanism.

6. A movable display device, characterized in that: The settings are: Supporting part; a sliding member supported so as to be movable back and forth relative to the support portion in a direction intersecting the direction of gravity; A display component supported by the sliding component so as to be rotatable; a power source for causing the sliding member to reciprocate between a display setting position and a non-display setting position; a switching mechanism that rotates the display member to a display attitude by a moving force when the sliding member moves to the display setting position, wherein the display attitude is a posture in which the front end portion of the display member on the side opposite to the rotation support side faces the direction of gravity, and rotates the display member to a non-display attitude in which the front end portion is raised by a moving force when the sliding member moves to the non-display setting position; a display-side restriction mechanism for restricting movement of the display member in the display posture; and a non-display side restriction mechanism for restricting movement of the display member in the non-display posture; When the slide member moves between the display setting position and the non-display setting position, neither the display-side restriction mechanism nor the non-display-side restriction mechanism restricts the display member.

7. The movable display device according to claim 6, wherein: A guide cam is provided for guiding the switching mechanism when the sliding member moves. The guide cam is provided with an inclined guide portion inclined relative to the moving direction of the sliding member, and when the sliding member moves to a position intermediate 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, neither the display-side restriction mechanism nor the non-display-side restriction mechanism restricts the display component.

8. The movable display device according to claim 6, wherein: The display side limiting mechanism and the non-display side limiting mechanism include: a rotating body provided on one of the supporting portion and the display component or an accessory component that rotates together with the display component; a limiting surface provided on the other of the supporting portion and the display component or an accessory component that rotates together with the display component; and a spring component that presses the rotating body against the limiting surface.

9. The movable display device according to claim 6, wherein: The settings are: The holding mechanism holds the display member rotated to the non-display posture so as not to move in the direction of gravity by a moving force when the sliding member moves toward the non-display setting portion.

Images