JP2006053491A - Projector slide stand - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a projector in which the position of the picture to be projected can be easily adjusted. <P>SOLUTION: A projector stand provided with a stand capable of moving all around is equipped below a projector, and the position of the projector is changed in accordance with the movement of the stand, thus the position of the picture to be projected from the projector can be easily adjusted. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a projector slide base, and more particularly to a projector slide base for moving a projector.

Conventionally, in order to accurately form an image projected by a projector on an object to be projected such as a screen, the position of the projector is set. For the purpose of setting the position of such a projector, for example, a configuration in which a table on which a projector is mounted can be moved back and forth (see, for example, Patent Document 1), a projector is mounted on a carriage, and the carriage is mounted on a ceiling. A method (for example, refer to Patent Document 2) has been developed in which the crane can be moved forward and backward and left and right by a motor drive. In addition, a projector base (see, for example, Patent Document 3) that can be tilted vertically and horizontally by providing a plurality of height adjusters on a base base on which a projector is mounted has been developed.
JP 7-333727 A JP 11-278364 A JP 2000-267191 A

  However, in the technique described in Patent Document 1, the table on which the projector is mounted can move back and forth, but cannot move left and right. Further, the technique disclosed in Patent Document 2 is a large-sized shipbuilding construction project in which a carriage on which a projector is mounted can move back and forth and right and left, but a plurality of projectors are mounted on the carriage. Therefore, there is a disadvantage that a large drive source is required. In addition, the technique disclosed in Patent Document 3 can easily and freely determine the position of the projector because the base base of the projector can be moved back and forth and can be swung but cannot move left and right. There is a problem that can not be.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a projector slide base that can easily adjust the movement of the installation position for focus adjustment using a simple structure without requiring a drive source.

  In order to solve the above-mentioned problem, the invention according to claim 1 is a projector slide base comprising: a projector base on which a projector is mounted; and a slide mechanism capable of moving the projector base in two directions intersecting each other. The projector base includes an inclination mechanism capable of adjusting a projection angle of the projector, and the slide mechanism holds the ball rotatably in a ball and a circular hole as a moving mechanism in one of the two directions. A moving body and a guide rail having a groove for guiding the ball so as to reciprocate are provided, and a member for supporting the projector base is supported on the moving body so as to be movable in another direction. .

  According to the first aspect of the present invention, the movement of the projector in at least one direction is realized with a simple configuration of a circular hole and a ball provided in the moving body. Further, the moving body can be smoothly moved by using the ball. The projection angle of the light projected from the projector mounted on the projector base is adjusted by operating a tilt mechanism provided on the projector base.

According to a second aspect of the present invention, in the projector slide base according to the first aspect, the moving body has a guide groove along the other direction of the two directions, and the slide mechanism includes the guide groove. The slider has a slider as a member for supporting the projector base, and the slider has a plate material having the same shape as the cross-sectional shape of the guide groove on both sides in the traveling direction, and an end surface of the plate material. The invention according to claim 2, wherein the slide mechanism is a slider, wherein the slide mechanism is a slider. Has a plate material having the same shape as the cross-sectional shape of the guide groove on both sides in the traveling direction, and an end surface of the plate material and an inner surface of the guide groove Therefore, the sliding area can be reduced, and the movement of the projector can be facilitated.

  According to a third aspect of the present invention, in the first or second aspect of the present invention, the tilt mechanism is configured such that a tilt angle of the projector mounting table is variable according to the rotation of a screw. And a stopper for preventing the projector from falling.

  According to a third aspect of the present invention, in the first or second aspect of the present invention, the tilt angle of the mounting table of the projector provided as the tilt mechanism is adjusted according to the rotation of the screw. The mounting table is provided with a stopper for preventing the projector from dropping, and the projector mounted on the mounting table is prevented from falling by the stopper.

  According to the first aspect of the present invention, the projector slide base is configured by a ball and a circular hole, so that the projector can be smoothly moved with a simple structure without depending on a driving source. By the tilt mechanism provided in the projector stand provided in the stand, the projector can be easily moved and installed at a position where an image projected from the projector is most suitably formed on the screen.

  According to the second aspect of the invention, in the projector slide base according to the first aspect, since the slider having the plate material that is in sliding contact with the guide groove portion at the end surface is used, the projector can be moved smoothly. At the same time, it can move back and forth with a simple structure.

  According to a third aspect of the present invention, in the first or second aspect of the present invention, the tilt mechanism is configured such that a tilt angle of the mounting table of the projector is variable according to the rotation of a screw. Therefore, it can be adjusted to an arbitrary inclination angle within the movable range of the screw. Further, since the tilt mechanism has a stopper, it is possible to effectively prevent the projector mounted on the mounting table from dropping.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the present embodiment, the direction in which the projector projects an image is defined as the X-axis direction (front-rear direction), and one direction orthogonal thereto is defined as the Y-axis direction (left-right direction).

  As shown in FIG. 1, a projector slide base 1 according to the present embodiment supports a projector base 20 on which a projector P (see FIG. 2) is mounted, and the projector base 20. A left-right moving mechanism 30 that can move in the left-right direction) and a front-rear moving mechanism 40 that allows the projector base 20 to move in the X-axis direction (front-back direction) are provided.

  The projector base 20 is provided with a mounting base 21 on which the projector P is mounted, and an inclination mechanism 50 that can adjust the projection angle of the projector P by making the inclination angle of the mounting base 21 variable.

  As shown in FIG. 2A, as the tilt mechanism 50 in the present embodiment, a support plate 22 that is opposed to the lower surface of the mounting table 21 is disposed on the lower side of the mounting table 21. An engagement portion 27 is disposed on the support plate 22, and the support plate 22 and the slider 34 are integrated by engaging the engagement portion 27 with a convex portion 36 provided on the slider 34 described later. It is possible to move.

  As the tilt mechanism 50, for example, as shown in FIG. 2 (b), a thumbscrew 23 that is manually rotated is provided, and the tilt angle of the upper side surface of the mounting table 21 that is the mounting surface is manually adjusted appropriately. It is good also as a structure fastened with the thumbscrew 23 from. Further, when the tilt mechanism 50 described above is attached to the projector base 20, a stopper 26 that prevents the projector from dropping due to the mounting base 21 being tilted may be provided as in the present embodiment.

  One end of the mounting table 21 and one end of the support plate 22 are connected via a hinge 24 so as to be rotatable about an axis along the Y-axis direction. Further, a screw hole 25 is formed on the other end side of the support plate 22, and a screw 23 is provided through the screw plate 25 to penetrate the support plate 22 from below to above. Then, the screw 23 is rotated and moved up and down with the support plate 22 as a reference plane, so that one end of the screw 23 is rotatably connected by the hinge 24 and the mounting table 21 is in contact with the upper end of the screw 23. The angle can be adjusted, and the tilt mechanism 50 functions.

  Further, the projector 21 is a part of the mounting table 21 and is in contact with a rear end portion of the projector P mounted on the mounting table 21 on one side of the lower end portion when the mounting table 21 is inclined. By supporting P, there is provided a stopper 26 that can prevent the projector P from sliding backward when the mounting table 21 is inclined.

  The stopper 26 is not limited to the present embodiment, and for example, a stopper member similar to the stopper 26 described above may be provided in a direction other than the projection direction of the projector P. In this way, the projector P can be prevented from falling even when it is moved left and right by the left and right moving mechanism 30 and the front and rear moving mechanism 40 described above.

  The left-right moving mechanism 30 is a moving mechanism that supports the projector base 20 and allows the projector base 20 to move in the Y-axis direction. As shown in FIGS. 1 and 3, the left-right moving mechanism 30 according to the present embodiment includes a long moving body 31 that extends in the Y-axis direction and has a guide groove 32, and a Y that extends along the guide groove 32. The slider 34 is movable in the direction and supports the projector base 20 described above.

  The moving body 31 is provided with the guide groove portion 32 described above, and in the vicinity of both ends of the moving body 31, a substantially circular hole 33 constituting the front-rear moving mechanism 40 moves the moving body 31 up and down. It is drilled to penetrate.

  As shown in FIG. 1, the guide groove 32 is a groove provided in parallel with the longitudinal direction of the moving body 31 and has an opening having an open upper end.

  The slider 34 has the same shape as the support member 37, the convex portion 36 that is disposed at the upper end of the support member 37 and is supported by the projector base 20 described above, and supports the projector base 20, and the guide groove 32. And a flange 35 disposed at both ends in the moving direction of the support member 37.

  In addition, although the guide groove part 32 in this embodiment was set as the structure which has the opening part by which all the upper end parts were open | released in order to employ | adopt a simple structure, it is not necessarily limited to this, For example, it is a mobile body. Only the convex portion 36 may be protruded by narrowing the opening width in the X direction at the upper end. In this way, even when an upward force is applied to the slider 34 as the projector base 20 moves, the slider 34 is not separated from the guide groove 32.

  The flange 35 is movable in the Y-axis direction by sliding the edge of the flange 35 against the inner surface of the guide groove 32. By adjusting the thickness t of the flange 35 as appropriate, the sliding contact area is increased. And the frictional resistance acting on the inner surface of the slider 34 and the guide groove 32 can be adjusted. In addition, you may apply | coat lubricating oil, such as grease and oil, to the inner surface of the guide groove part 32, for example.

  The front-rear moving mechanism 40 has a base 41 formed in a rectangular frame shape with four sides extending in the X-axis direction and the Y-axis direction, respectively, and 2 extended in the X-axis direction (front-rear direction) of the base 41. A pair of guide rails 42 provided on the side and provided so that a ball 44 described later can be guided in the front-rear direction, holes 33 provided in the vicinity of both ends of the moving body 31 described above, and these holes And a ball 44 rotatably held in the portion 33.

  As shown in FIGS. 1, 4, and 5, the hole 33 penetrates the moving body 31 vertically in the vicinity of both ends of the moving body 31. The inner diameter of the hole 33 is set slightly larger than the outer diameter of the ball 44 and has a constant inner diameter in the vertical direction. Therefore, the ball 44 is rotatably held inside the hole 33 inside the hole 33.

  The ball 44 extends in the longitudinal direction of the guide rail 42 and rotates inside the guide groove 43 having a circular cross section.

  In this embodiment, as shown in FIG. 1, the guide rails 42 are provided on a pair of opposite sides of a base 41 that is formed in a substantially square shape as a whole. The two guide rails 42 are both long and substantially parallel and extend in the X-axis direction and have openings opened in the longitudinal direction on both side surfaces of each guide rail 42. A guide groove 43 capable of guiding the ball 44 described above in the X-axis direction is formed in a part of the inside.

  As shown in FIG. 1, the upper and lower portions of the ball 44 that are rotatably or slidably held inside the hole 33 at both ends of the moving body 31 are slightly smaller than the upper and lower surfaces of the moving body 31. The ball 44 rotates in a guide groove 43 that protrudes and extends in a pair of guide rails 42 provided substantially parallel to each other. Thereby, the projector base 20 is configured to be movable in the X-axis direction (front-rear direction) via the moving body 31.

  In the present embodiment, the hole 33 is circular, but the present invention is not necessarily limited to this. For example, an annular body that is rotationally moved along the rail 42 is rotatably held. It is good also as a structure which becomes a substantially rectangular shape or a substantially elliptical hole.

  Moreover, you may make it apply | coat lubricating oil, such as grease and oil, to the inner surface of the guide groove 43, for example.

  Next, the operation of the projector slide base 1 according to this embodiment will be described in detail. Note that the projector slide base 1 according to the present embodiment is used with the projector P mounted on the mounting base 21 of the projector base 20 shown in a substantially central portion in FIG.

  First, the projector table 20 is configured such that the tilt angle of the mounting table 21 can be freely adjusted by the tilt mechanism 50 provided in the projector table 20, and as shown in FIG. As the mounting table 21 is moved up and down by the rotation of the screw 23, the end on the front side in the projection direction is moved up and down, and the mounting table 21 having the mounting surface is adjusted to a desired angle.

  Next, the operation related to the horizontal movement of the projector slide base 1 according to the present embodiment will be described in detail.

  The projector base 20 is engaged with the slider 34 via a convex portion 36 provided on the upper surface of the support member 37 constituting the slider 34, so that the Y-axis direction (that is, the left-right direction) is integrated with the slider 34. Can be moved freely.

  More specifically, the left-right moving mechanism 30 includes an inner side surface of the groove 32 that constitutes the left-right moving mechanism 30 and an edge of the flange 35 that constitutes the slider 34. By sliding, the slider 34 can freely move in the left-right direction along the groove 32 and functions.

  Here, regarding the mobility of the slider 34 in the left-right direction (Y-axis direction), it can be applied to the inner surface of the groove 32 by appropriately selecting the thickness t of the flange 35 and adjusting the frictional resistance. It can be adjusted by appropriately selecting the viscosity of a lubricant such as grease.

  Next, an operation related to the back-and-forth movement of the projector slide base 1 according to the present embodiment will be described in detail.

  The moving body 31 is freely moved in the front-rear direction (X-axis direction) by the front-rear moving mechanism 40.

  More specifically, a ball 44 is rotatably held in a hole 33 formed in the vicinity of both ends of the moving body 31.

  As shown in FIG. 5, the upper and lower portions of the ball 44 are slightly projected from the upper and lower surfaces of the moving body 31, and are guided along the guide groove 43 provided in the guide rail. Thus, it can be freely moved in the front-rear direction (X-axis direction).

  Here, regarding the mobility of the moving body 31 in the front-rear direction (X-axis direction), the viscosity of the lubricant such as grease that can be applied to the inner surface of the guide groove 43 is the same as in the case of the left-right moving mechanism 30 described above. Can be adjusted by appropriately selecting.

  As shown in FIG. 1, the projector base 20 in the projector slide base 1 according to the present embodiment can be moved in the front-rear and left-right directions by the left-right movement mechanism 30 and the front-rear movement mechanism 40. Furthermore, the tilting mechanism 50 described above functions so that the projection direction can be adjusted up and down.

  As described above, according to the projector slide base 1 according to the present embodiment, the configuration of the ball 44 and the circular hole 33 can realize a smooth movement of the projector without relying on a drive source with a simple structure. By the tilt mechanism 50 provided in the projector table 20 provided in the projector slide table 1, the projector can be easily moved and installed at a position where the image projected from the projector is most suitably formed on the screen. Can do.

  Further, since the left / right moving mechanism 30 uses the slider 34 having a plate member that is in sliding contact with the guide groove portion 32 at the end face, the projector can be moved smoothly and can be reciprocated with a simple structure.

  Furthermore, since the tilting mechanism 50 is configured such that the tilting angle of the mounting table 21 of the projector is variable according to the rotation of the screw 23, the tilting mechanism 50 can be adjusted to an arbitrary tilting angle within the movable range of the screw 23. it can. Further, since the tilt mechanism 50 has a stopper, it is possible to effectively prevent the projector mounted on the mounting table 21 from dropping.

1 is a perspective view showing an overall configuration of a projector slide base 1 according to the present embodiment. FIG. 2A is a side view showing an outline of the tilt mechanism in the projector slide base 1 according to this embodiment, and FIG. 2B is a side view showing another example of the projector slide base according to this embodiment. is there. It is a perspective view which shows the outline of the slider in the projector slide stand 1 concerning this embodiment. It is a perspective view which shows the outline of the back-and-forth moving mechanism in the projector slide base 1 concerning this embodiment. It is sectional drawing which shows the outline of the front-back movement mechanism in the projector slide stand 1 concerning this embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Projector slide stand 20 Projector stand 21 Mounting stand 22 Support plate 30 Left-right moving mechanism 31 Moving body 32 Groove part 33 Hole part 34 Slider 35 Flange 40 Front-back movement mechanism 41 Base 42 Guide rail 43 Guide groove 44 Ball 50 Inclination mechanism

Claims (3)

In a projector slide base comprising: a projector base on which a projector is mounted; and a slide mechanism capable of moving the projector base in two directions intersecting each other.
The projector base includes an inclination mechanism capable of adjusting a projection angle of the projector,
The slide mechanism is a guide having a ball, a moving body that rotatably holds the ball in a circular hole, and a groove portion that guides the ball so as to reciprocate as a moving mechanism in one of the two directions. A projector slide base, comprising: a rail, and a member that supports the projector base supported by the movable body so as to be movable in another direction. The movable body has a guide groove along the other direction of the two directions,
The slide mechanism is movable along the guide groove and has a slider as a member for supporting the projector base,
The slider has a plate material having the same shape as the cross-sectional shape of the guide groove portion on both sides in the advancing direction, and is capable of reciprocating by sliding the end surface of the plate material and the inner surface of the groove portion. The projector slide base according to claim 1.   2. The tilt mechanism according to claim 1, wherein the projector mounting base is configured such that the tilt angle is variable according to the rotation of a screw, and has a stopper that prevents the projector from falling. Item 3. A projector slide base according to Item 2.

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