Tilting mechanism and display device provided with the same

1. A tilting mechanism, comprising:

a drive source configured to drive a plate;

a movement unit connected to the drive source;

a conveyance unit configured to be moved linearly by the movement unit; and

a plate support member to which the plate is fixed and which is partially engaged with the conveyance unit so that the plate support member is moved by the conveyance unit,

wherein the plate is moved linearly by linearly moving the conveyance unit together with the plate support member; and

tilting operation of the plate is performed by tilting the plate support member, the tilting of the plate support member being caused by pushing the plate support member by the conveyance unit which moves linearly in a state that the linear movement of the plate support member is stopped,

the tilting mechanism further comprising:

a side rail member configured to support a shaft for tilting to guide the shaft for tilting in a movement direction thereof, and configured to support a shaft for conveyance to guide the shaft for conveyance in a movement direction thereof, the shaft for conveyance being inserted into the conveyance unit, the shaft for tilting being inserted into the plate support member; and

a guide member being supported at the shaft for conveyance and configured to contact the shaft for tilting under a condition that the guide member is subjected to force which makes the guide member approaches the shaft for tilting.

2. The tilting mechanism according to claim 1 , wherein the side rail member includes first side rail member and second side rail member, first side rail member being arranged at one side of the conveyance unit along the shaft for conveyance, second side rail member being arranged at the other side of the conveyance unit along the shaft for conveyance;

first pinion gears are attached to the shaft for tilting;

second pinion gears are attached to the shaft for conveyance; and

each of first and second side rail members includes rack to be engaged with the first and second pinion gears.

3. The tilting mechanism according to claim 1 , further comprising an elastic body configured to bias or urge the guide member against the shaft for tilting so that the guide member contacts the shaft for tilting.

4. The tilting mechanism according to claim 3 , wherein the guide member includes first guide member which is supported by the shaft for conveyance at one side of the conveyance unit and second guide member which is supported by the shaft for conveyance at the other side of the conveyance unit; and

the elastic body includes first elastic body configured to bias or urge the first guide member and second elastic body configured to bias or urge the second guide member.

5. The tilting mechanism according to claim 1 , wherein the movement unit comprises: a screw shaft formed with a male screw; and a nut formed with a female screw which is fixed to the conveyance unit and which is engaged with the screw shaft.

6. The tilting mechanism according to claim 1 , wherein a movable area of the conveyance unit includes a first area where the conveyance unit and the plate support member are moved linearly and integrally and a second area where the tilting operation of the plate is performed.

7. The tilting mechanism according to claim 1 , wherein a movement area of the conveyance unit includes a first area where the conveyance unit and the plate support member are moved linearly and integrally and a second area where the tilting operation of the plate is performed;

the shaft for tilting and the shaft for conveyance are moved in the first area;

the shaft for tilting is stopped and the shaft for conveyance is moved in the second area; and

the tilting operation of the plate is performed by using the shaft for tilting stopped as a rotational center.

8. The tilting mechanism according to claim 1 , wherein the plate is a display plate on which information is displayed.

9. A display device comprising the tilting mechanism as defined in claim 1 .

10. A tilting mechanism configured to move a display plate in an up-down direction and to tilt the display plate under a condition that upward movement of the display plate is completed, the tilting mechanism comprising:

a plate support member configured to support the display plate;

a first shaft extending in a horizontal direction while being rotatably supported by the plate support member;

a conveyance unit which is engaged with the plate support member in a state that the plate support member is rotatable relative to the conveyance unit; and

stopper configured to constrain upward movement of the first shaft,

wherein the display plate is tilted with the first shaft as a pivot by moving the conveyance unit upwardly in a state that the first shaft is brought into contact with the stopper,

the tilting mechanism further comprising:

a side rail member configured to support the first shaft to guide the first shaft in a movement direction thereof, and configured to support a second shaft to guide the second shaft in a movement direction thereof, the second shaft being inserted into the conveyance unit, the first shaft being inserted into the plate support member; and

a guide member being supported at the second shaft and configured to contact the first shaft under a condition that the guide member is subjected to force which makes the guide member approaches the first shaft.

11. The tilting mechanism according to claim 10 , wherein the side rail member includes first and second side rail members each provided with guide groove to guide the first shaft in the up-down direction, and

wherein the stopper includes upper end edge of each guide groove.

12. The tilting mechanism according to claim 10 ,

wherein the second shaft extends in the horizontal direction while being rotatably supported by the conveyance unit; and

the guide member includes first and second guide members attached to the second shaft and configured to be biased or urged toward the first shaft so that the first and second guide members are brought into contact under pressure with the first shaft from below.

13. The tilting mechanism according to claim 12 , wherein the display plate is tilted in a state that the movement of the first shaft in the up-down direction is constrained by the first and second guide members, and the stoppers or the upper end edges.