JP2006349048A - Three dimensional position adjusting device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a three dimensional position adjusting device capable of adjusting X-axis, Y-axis, and Z-axis each individually and mechanically by rotating three shafts and achieving high efficiency of assembly work. <P>SOLUTION: An angle can be adjusted in the direction of X-axis and the direction of Y-axis as an upper step angle adjusting mechanism part 21 and a lower step angle adjusting mechanism part 1 by crossing a pair of angle adjusting mechanism parts by 90 degrees. A top plate supporting part for supporting a top plate part 40 for supporting an object to be supported in an upper part passing through the upper step angle adjusting mechanism part 21 to swing to match it with attitude of a disc 3 in the upper part of the upper step angle adjusting mechanism part 21 is protrudedly provided on a base 2 of the lower step angle adjusting mechanism part 1 to adjust an angle in the direction of Z-axis by letting the top plate part 40 slide in the direction of outer periphery. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an apparatus capable of adjusting the angle of a supported object such as an illumination device (light engine) in a projection television on the X, Y, and Z axes.

Conventionally, an operator adjusts the mounting posture of the light engine by sandwiching an adjustment plate under the light engine built in the projection television.
Therefore, it is a work that requires skill, and it takes time and assembly efficiency is low.

  The present invention was devised in view of the above circumstances, and its main problem is that the X axis, the Y axis, and the Z axis are individually mechanically adjusted by rotating the three shafts. An object of the present invention is to provide a three-dimensional position adjustment device that can improve the efficiency of assembly work.

The present invention has been proposed in order to solve the above-mentioned problems.
A pair of discs in which the upper disc and the lower disc are overlapped in a pair so that the contact surface becomes an inclined surface with the disc gradually increasing in thickness along the diameter direction;
An actuating member that rotates either the upper disk or the lower disk;
The upper disk and the lower disk are concentrically connected to the rotation direction of one disk and provided with a cam mechanism for rotating the other disk in the opposite direction, and an angle adjusting mechanism portion supported in the base. ,
A pair of angle adjustment mechanism sections are crossed by 90 degrees and connected up and down as an upper stage angle adjustment mechanism section and a lower stage angle adjustment mechanism section so that the angle can be adjusted in the X-axis direction and the Y-axis direction,
The base of the lower angle adjustment mechanism can swing so that the top plate that supports the object to be supported matches the position of the disk above the upper angle adjustment mechanism at the upper part that penetrates the upper angle adjustment mechanism. The top plate support part that supports the
The top plate portion is slid in the outer peripheral direction centering on the top plate support portion so that the angle can be adjusted in the Z-axis direction.
In the invention of claim 2,
A gear is provided on one side of the lower disk, and an operating member having a worm gear meshing with the gear is rotatably supported on a base.
In the invention of claim 3,
The base of the upper stage angle adjustment mechanism unit is integrally connected to the upper disk of the lower stage angle adjustment mechanism unit.
Furthermore, in the invention of claim 4,
A sliding surface is formed on the back surface of the top plate portion so as to slide with respect to the upper disk of the upper angle adjustment mechanism portion, and a shaft is provided on the side surface of the top plate base that rotatably supports the top plate. A receiving hole that is hooked with a sliding hole of an operating member having a slider that moves forward and backward in the direction is formed,
It is characterized by being able to rotate forward and backward along the outer peripheral direction with the top plate support portion as a fulcrum.
In the invention of claim 5,
The top surface of the top plate support part is a spherical bearing,
A receiving portion having a substantially spherical shape projecting downward and having a through-hole at the center is formed on the center rear surface of the top plate.
In the invention of claim 6,
The three-dimensional position adjusting device supports an illumination device built in the projection television so that the angle can be adjusted in a three-dimensional direction.

The present invention does not require skill as in the prior art, and can finely adjust the X-axis, Y-axis, and Z-axis individually with a simple structure, thereby improving the efficiency of the adjustment work and The cost can be significantly reduced.
Further, if a gear is used for adjustment, there is an advantage that the pitch interval can be set accurately and the reliability can be improved.

  The present invention easily adjusts the X-axis, Y-axis, and Z-axis by combining a lower plate angle adjustment mechanism unit and an upper-stage angle adjustment mechanism unit made up of a pair of upper and lower disks contacting with a pair of inclined surfaces, and a top plate unit. Realized that.

A preferred embodiment in which the three-dimensional position adjusting device of the present invention is used as an adjuster for supporting an illumination device (light engine) incorporated in a projection television will be described below with reference to the drawings.
This three-dimensional position adjustment device includes a lower stage angle adjustment mechanism part 1, an upper stage angle adjustment mechanism part 21, and a top board part 40 that serves as a support for a light engine (not shown) (FIG. 8B). )reference).

[Lower angle adjustment mechanism]
The lower stage angle adjustment mechanism unit 1 and the upper stage angle adjustment mechanism part 21 have substantially the same structure.
First, the lower angle adjustment mechanism 1 includes a base 2 shown in FIG. 1, a pair of upper and lower disks 3 and 4 rotatably accommodated in the base 2, and an operating member 5 for rotating the disks (see FIG. 2). It is made up of.

[disk]
The pair of upper and lower disks 3 and 4 have a substantially triangular shape in cross section in which the thickness gradually increases along the diameter direction.
Then, the upper disk 3 and the lower disk 4 are overlapped and used in a pair so that the contact surfaces of the disks 3 and 4 are inclined surfaces (see FIG. 7).
In this embodiment, a gear portion 4a is formed on one side of the lower disk 4 and meshes with the worm gear 5a of the operating member 5 pivotally supported by the bearing portion 10 as shown in FIG.

[base]
As shown in FIG. 1, the base 2 includes a bearing portion 10 that rotatably supports the operating member 5, and a substantially semicircular upper and lower peripheral wall 12 that restricts the disks 3 and 4 to rotate concentrically. 13 and a top plate support portion 8 that protrudes from the center of the bottom surface and supports the top plate portion 40.
The top plate support portion 8 is composed of a pair of projecting pieces, and the upper end is recessed inward in a substantially arc shape or spherical shape.
Further, on the bottom surface of the base 2, a base restricting portion 6 formed of a pair of long hole-like concave portions is formed on the same straight line (reference line) L1 extending in the diametrical direction (FIGS. 1 and 9). (See (a)).

[Lower first regulation part]
In addition, the lower disk 4 overlaps the base restricting portion 6 in the center, and with respect to a radial line that is inclined counterclockwise by a predetermined angle (20 degrees in the illustrated example) with respect to the reference line L1. A pair of long holes in which the center line L2 is provided in a direction orthogonal to each other, the lower first restricting holes 14 having an angle formed by the centers of the arcs at both ends set to 40 degrees are symmetric with respect to the center of the disk 4. (See FIG. 9B).

[Upper first restriction part]
The upper disk 3 overlaps the base restricting portion 6 at the center and is orthogonal to a radial line inclined clockwise by a predetermined angle (20 degrees in the illustrated example) with respect to the reference line L1. A pair of upper holes that are provided with a center line L3 in the direction in which the upper first restriction holes 15 are set at an angle of 40 degrees between the arcs at both ends at symmetrical positions with respect to the center of the disk 3. Has been.

[First guide pin]
The base restricting portion 6, the lower first restricting hole 14, and the upper first restricting hole 15 are partially aligned vertically, so that the first guide pin 16 is fitted in the aligned portion, and the lower disk 4 The cam mechanism rotates the upper disk 3 in the opposite direction by the first guide pin 16 that is displaced in conjunction with the rotation of the disk (see FIGS. 10 to 12).
The upper surface of the first guide pin 16 is set to a height that does not protrude above the upper disk 3.

[Operating member]
The actuating member 5 has a worm gear 5a on the upper part of the saddle member 5b and is pivotally supported by the bearing portion 10.
In this embodiment, the lower stage angle adjusting mechanism 1 is arranged on the right side in the figure.
The worm gear 5a meshes with the gear portion 4a carved on one side of the lower disk 4, and the lower disk 4 is rotated clockwise or counterclockwise via the gear portion 4a by the rotation of the flange 5b. Can be rotated in the direction.

Because of the above configuration, in the neutral position shown in FIG. 10, the upper and lower disks 3 and 4 compensate for each other, and the upper surface of the upper disk 3 is a horizontal plane.
Therefore, when the lower disk 4 is rotated clockwise as shown in FIG. 11A through the gear portion 4a that rotates the operating member 5 and meshes therewith, the lower first restriction hole 14 causes the first guide pin to rotate. 16 slides in the base regulating hole 6.

Then, in conjunction with the displacement of the first guide pin 16, the upper first restriction hole 15 is dragged, and the upper disk 3 rotates and moves in the direction opposite to the lower disk 4.
As a result, the upper disk 3 rotates in the opposite direction to the lower disk 4, and the upper surface of the upper disk 3 has an inclined surface shape in which one is high and the other is low (see FIG. 11B).

When the lower disk 4 is rotated counterclockwise as shown in FIG. 12A through the gear portion 4a that rotates the operating member 5 and meshes therewith, the first guide is formed by the lower first restriction hole 14. The pin 16 slides in the base restricting hole 6 in the opposite direction.
Then, the upper first restricting hole 15 is dragged in conjunction with the displacement of the first guide pin 16 so that the upper disk 3 rotates in the opposite direction to the lower disk 4.

As a result, the upper disk 3 rotates in the opposite direction to the lower disk 4, and the upper disk 3 has an inclined surface shape in which the other is higher and the other is lower (see FIG. 12B).
In this way, the angle or position can be finely adjusted in one direction (X-axis direction) by the forward / reverse rotation operation of the actuating member 5.

[Upper angle adjustment mechanism]
Next, the upper stage angle adjustment mechanism unit 21 has substantially the same structure as the lower stage angle adjustment mechanism unit 1.
As shown in FIG. 3 and FIG. 8B, the upper stage angle adjustment mechanism unit 21 rotates the upper base 22, a pair of upper and lower disks 23 and 24 rotatably accommodated in the upper base 22, and the disk. And an upper stage actuating member 25 to be operated.
The upper stage base 22 is placed on the upper surface of the disk 3 above the lower stage angle adjusting mechanism 1 with almost no gap, and is displaced in parallel along the displacement (inclination) of the upper disk 3.

The upper base 22, the upper and lower pair of disks 23 and 24, and the upper stage operating member 25 are substantially the same as the base 2, the upper and lower pair of disks 3 and 4, and the operating member 5 of the lower stage angle adjusting mechanism 1. It consists of the following.
In the upper stage angle adjustment mechanism portion 21, the upper stage actuating member 25 is disposed on the left side in the figure facing the actuating member 5.

[Upper base]
The upper base 22 is provided with a bearing 31 that rotatably supports the upper operating member 25 on the left side in the drawing to avoid interference with the operating member 5 of the base 2.
Moreover, it has substantially semicircular upper and lower peripheral walls 32, 33 for restricting the upper disks 23, 24 to be rotatable, and has a large-diameter hole through which the top plate support 6 is inserted at the center. Have.
Further, on the bottom surface of the upper base 22, an upper base restricting portion 26 composed of a pair of long hole-shaped concave portions is formed on the same straight line (reference line) L4 extending in the longitudinal direction in the diameter direction (FIG. 13A). )reference).

[Lower second control part]
The upper lower disk 24 overlaps the upper base restricting portion 26 in the center, and is a radial line inclined counterclockwise by a predetermined angle (20 degrees in the illustrated example) with respect to the reference line L4. A pair of lower second restricting holes 34 having a center line L5 provided in a direction perpendicular to the center and having an angle formed by the centers of the arcs at both ends set at 40 degrees are symmetrical with respect to the center of the disk 24. It has been drilled (see FIG. 13B).

[Upper second restriction part]
Further, the upper upper disk 23 overlaps the upper base restricting portion 26 in the center, and with respect to a radial line that is inclined clockwise by a predetermined angle (20 degrees in the illustrated example) with respect to the reference line L4. The upper upper second restriction hole 35 in which the angle formed by the centers of the arcs at both ends is set to 40 degrees is symmetrical with respect to the center of the disk 23. A pair of holes are formed (see FIG. 13C).
The upper cam mechanism of the upper stage angle adjustment mechanism section 21 configured as described above is characterized in that it is arranged so as to be orthogonal to the cam mechanism of the lower stage angle adjustment mechanism section 1.

Because of the above configuration, in the neutral position shown in FIG. 14, the upper and lower disks 23 and 24 complement each other, and the upper surface of the upper upper disk 23 is a horizontal plane.
Then, when the upper stage operating member 25 is rotated and the upper lower disk 24 is rotated clockwise through the gear portion 24a meshing with the upper stage operating member 25, the lower second restriction hole 34 is obtained. As a result, the second guide pin 36 slides in the upper second restriction hole 35.

Then, the upper second restricting hole 35 is pulled in conjunction with the displacement of the second guide pin 36, and the upper upper disk 23 rotates in the opposite direction to the lower disk 24.
As a result, the upper upper disk 23 rotates in the direction opposite to the upper lower disk 24, and the upper surface of the upper disk 23 is inclined with one side being higher and the other being lower (FIG. 15B). reference).

Further, when the upper stage actuating member 25 is rotated and the gear portion 24a meshing with the upper stage actuating member 25 is rotated counterclockwise as shown in FIG. The second guide pin 36 slides in the upper base restriction hole 26 in the direction opposite to the above by the two restriction holes 34.
Then, in conjunction with the displacement of the second guide pin 36, the upper second restriction hole 35 is dragged, and the upper disk 23 rotates in the opposite direction to the lower disk 24.

As a result, the upper upper disk 23 rotates in a direction opposite to the lower disk 24, and the upper upper disk 23 has an inclined surface shape in which the other is higher and the other is lower (see FIG. 16B).
In this way, the angle and position can be finely adjusted in the Y-axis direction orthogonal to the X-axis direction by operating the upper stage actuating member 25, in the illustrated example, by forward and reverse rotation.

[Top plate base]
Next, the top plate portion 40 is rotatably supported in the top plate base 42 as shown in FIGS.
The top plate base 42 includes a peripheral wall 46 for sliding the top plate portion 40 in the rotation direction, a bearing portion 47 that pivotally supports the top plate operating member 45, and a hole portion through which the top plate support portion 8 is inserted. And is disposed in contact with the upper disk 23 in the upper stage with almost no gap.
The bearing portion 47 is disposed on the right side in the drawing, and is separated so that the top plate operating member 45 does not overlap above the operating member 5, thereby avoiding interference with the operating member 6.

[Top plate]
The top plate portion 40 has a uniform thickness, and a sliding surface 43 that slides with respect to the upper disk 23 on the upper stage is formed on the back surface thereof.
A receiving portion 48 that is partially opened is formed on the side surface of the top plate portion 40, and a slider 45 a of a top plate operating member 45 that moves forward and backward in the axial direction is latched on the receiving portion 48. ing.
Here, the top plate operating member 45 includes a slider 45a and a screw rod 45b that is screwed into a screw hole penetrating the slider 45a, and the slider 45a is rotated by rotating the screw rod 45b. Can be moved in the forward / backward direction along the axis of the screw rod 45b.

In addition, a receiving portion 41 supported by the top plate support portion 6 protrudes downward from the center of the top plate portion 40.
The receiving portion 41 protrudes downward in a substantially spherical shape, and a through hole for inserting a bolt is provided at the center.
Then, a cross-recessed pan head screw 51 is inserted into the through-hole through an SR washer 52 and is swingably stopped by a nut 53 on the back surface of the base.
As a result, the top plate portion 40 can be swung within a certain range with the receiving portion 41 being spherically supported by the top plate support portion 6, so that the top plate base 42 is at the same angle following the posture of the upper disk 23 in the upper stage. It is designed to be displaced.

Since the above structure is adopted, when the top plate operating member 45 is rotated from the neutral position in FIG. 17 and the slider 45a is screwed (moved upward in the figure), the slider as shown in FIG. In conjunction with 45a, the top plate 40 rotates counterclockwise in the figure with the central axis as a fulcrum.
Further, when the top plate operating member 45 is rotated in the reverse direction, the top plate portion 40 is rotated in the clockwise direction as shown in FIG.
Thereby, the top plate part 45 can be moved in parallel to the Z-axis direction.

  In this apparatus, the X-axis direction adjustment (± 1 ° in the illustrated example) is performed by the lower stage angle adjusting mechanism unit 1 in this way, and the Y-axis direction adjustment (± 1 in the illustrated example) is performed by the upper stage angle adjusting mechanism unit 21. ) And the Z-axis direction adjustment (± 2.5 ° in the illustrated example) can be performed by the top plate portion 40, so that the angle of the top plate portion can be adjusted in the three-dimensional direction as a whole.

Thereby, the angle of the illuminating device (light engine) mounted on the top plate portion can be adjusted to finely adjust the screen shift of the projector.
In the present invention, the worm gear and the gear mesh, and the screw rod and the slider mesh are used to rotate each disk. However, other known gear combinations or other rotation means may be used.

Further, the cam mechanism is not limited to the above-described embodiment, and a method of rotating the upper disk and the lower disk in the reverse direction in relation to each other or a method in which the rotation speed (displacement amount) is different even in the same direction is used. The position and angle of the upper surface may be displaced by changing the contact position of the inclined surfaces of the upper disk and the lower disk.
In addition, it goes without saying that various design changes can be made without departing from the scope of the present invention.

It is a perspective view of the base used for a lower stage angle adjustment mechanism part. It is a perspective view which shows the relationship with the action | operation member used for a lower stage angle adjustment mechanism part. It is a perspective view of an upper stage angle adjustment mechanism part. FIG. 5 is a perspective view showing a relationship between a pair of upper and lower upper disks and an upper operation member. It is principal part sectional drawing which shows a top plate part and a top plate receiving part. It is the perspective view which looked at the top plate part from the upper surface. It is sectional drawing of a three-dimensional position adjustment apparatus. (A) is a perspective view of a three-dimensional position adjustment apparatus, (b) is a perspective view which shows the cross section of a center. (A) is a plan view showing the base restricting portion of the base, (b) is a plan view showing the position of the lower disc and the lower first restricting hole, and (c) is the position of the upper disc and the upper first restricting hole. FIG. (A) is a top view in the neutral position of a lower stage angle adjustment mechanism part, (b) is a side view. (A) is a top view at the time of rotating the lower disk of FIG. 10 to one side, (b) is a side view. (A) is a top view at the time of rotating the lower disk of FIG. 10 to the other, (b) is a side view. (A) is a plan view showing the upper base restricting portion of the base, (b) is a plan view showing the positions of the upper lower disc and the lower second restricting hole, and (c) is the upper upper disc and the upper first restricting hole. It is a top view which shows the position. (A) is a top view in the neutral position of an upper stage angle adjustment mechanism part, (b) is a side view. (A) is a top view at the time of rotating the lower disk of FIG. 14 to one side, (b) is a side view. (A) is a top view at the time of rotating the lower disk of FIG. 14 to the other, (b) is a side view. (A) is a top view in the neutral position of a top-plate part, (b) is a side view. (A) is a top view at the time of rotating a top-plate part to one side, (b) is a side view. (A) is a top view at the time of rotating a top-plate part to the other, (b) is a side view.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Lower stage angle adjustment mechanism part 2 Base 3 Upper disk 4 Lower disk 5 Actuation member 6 Base control part 8 Top plate support part 11 Upper stage angle adjustment mechanism part 14 Lower 1st regulation hole 15 Upper 1st regulation hole 16 1st guide pin 21 Upper stage angle adjusting mechanism 22 Upper stage base 23 Upper disk 24 Lower disk 25 Upper stage operating member 26 Upper stage base restricting part 34 Lower second restricting hole 35 Upper second restricting hole 36 Second guide pin 40 Top plate part 41 Receiving part 42 Top plate Base 43 Sliding surface 45 Top plate operating member

Claims (6)

A pair of discs in which the upper disc and the lower disc are overlapped in a pair so that the contact surface becomes an inclined surface with the disc gradually increasing in thickness along the diameter direction;
An actuating member that rotates either the upper disk or the lower disk;
The upper disk and the lower disk are concentrically connected to the rotation direction of one disk and provided with a cam mechanism for rotating the other disk in the opposite direction, and an angle adjusting mechanism portion supported in the base. ,
A pair of angle adjustment mechanism sections are crossed by 90 degrees and connected up and down as an upper stage angle adjustment mechanism section and a lower stage angle adjustment mechanism section so that the angle can be adjusted in the X-axis direction and the Y-axis direction,
The base of the lower angle adjustment mechanism can swing so that the top plate that supports the object to be supported matches the position of the disk above the upper angle adjustment mechanism at the upper part that penetrates the upper angle adjustment mechanism. The top plate support part that supports the
A three-dimensional position adjusting device characterized in that the angle of the top plate portion can be adjusted in the Z-axis direction by sliding the top plate portion in the outer peripheral direction around the top plate support portion.   The three-dimensional position adjusting apparatus according to claim 1, wherein a gear is provided on one side of the lower disk, and an operating member having a worm gear meshing with the gear is rotatably supported on a base. .   2. The three-dimensional position adjusting apparatus according to claim 1, wherein a base of the upper stage angle adjusting mechanism unit is integrally connected to a disk above the lower stage angle adjusting mechanism unit. On the back surface of the top plate portion, a sliding surface is formed that slides on the upper disk of the upper angle adjustment mechanism portion. The side surface of the top plate base that rotatably supports the top plate is axially arranged. A receiving portion that is hooked with a sliding hole of an operating member having a slider that moves forward and backward is formed,
The three-dimensional position adjusting device according to claim 1, wherein the three-dimensional position adjusting device can be rotated forward and backward along the outer circumferential direction with the top plate support portion as a fulcrum. The top surface of the top plate support is a spherical bearing.
5. The three-dimensional position adjusting apparatus according to claim 4, wherein a receiving portion that protrudes downward in a substantially spherical shape and has a through hole in the center is formed on the center rear surface of the top plate. 6. The three-dimensional position adjusting device according to claim 1, wherein the three-dimensional position adjusting device supports an illumination device built in the projection television so that the angle can be adjusted in a three-dimensional direction.

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