JP2009128561A - Deflector fixture and device for controlling angle of deflector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a deflector fixture for facilitating angle adjustment of a deflector, and to provide a device for controlling an angle of the deflector. <P>SOLUTION: The device for controlling the angle of the deflector includes: a support for supporting the deflector fixture including the deflector, a frame body including a frame fixing the deflector, a projection projected from the frame body, and a hole provided in the projection; a pin provided on the support to pass through the hole; a first screw provided on the support for rotating the deflector by pushing the projection provided on the deflector fixture; and a second screw provided on the support for rotating the deflector by pushing the projection provided on the deflector fixture. Concerning a straight line connecting a center of a polarizing plate and a center of a hole, the first screw and the second screw are provided on the same side. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

The present invention relates to a deflection plate fixture and a deflection plate angle control device.

  Some conventional liquid crystal projectors are provided with a deflecting plate in the optical path thereof, and it is necessary to adjust the tilt of the deflecting plate at the time of projector manufacture. It is provided in the project.

  FIG. 4 is a perspective view showing a conventional deflection plate angle control device 200.

  A conventional deflection plate angle control device 200 includes a polarizing plate fixture 60 and a projector housing 70.

  The deflection plate fixture 60 includes a deflection plate 61, a disk-shaped frame body 62 that fixes the deflection plate 61, and a protrusion 63 that protrudes from the frame body 62.

  The housing 70 is provided with protrusions 72 and 73, and the protrusions 72 and 73 are provided with screw holes, respectively. Micrometers M1 and M2 are configured by the screw holes and the screws screwed into the screw holes. The tips of the micrometers M1 and M2 press the protrusion 63 of the deflector plate fixture 60 from the left and right in FIG. 4 (see, for example, Reference 1).

  In the conventional deflection plate angle control device 200, the polarizing plate 61 is controlled to an optimum inclination by inclining the deflection plate fixture 60 to the left and right by several degrees. For example, in order to tilt the deflection plate fixture 60 clockwise, the micrometer M2 is pulled out a little and the micrometer M1 is pushed out a little. If the inclination of the deflecting plate 61 is not yet optimal, the micrometer M2 is pulled out a little and the micrometer M1 is pushed out a little again. When this operation is repeated and the inclination of the deflection plate 61 becomes optimum, the rotation of the micrometer M2 is stopped at that position, the micrometer M1 is pushed in, and the inclination angle of the deflection plate fixture 60 is fixed.

To incline the deflecting plate fixture 60 counterclockwise, the micrometer M1 is slightly pulled out and the micrometer M2 is pushed out slightly, and this operation is repeated until the tilt of the deflecting plate 61 is optimized. When the tilt of the deflecting plate 61 becomes optimum, the rotation of the micrometer M1 is stopped at that position, the micrometer M2 is pushed in, and the tilt angle of the deflecting plate fixture 60 is fixed.
JP 2002-122839 A

  By the way, in the projector, when the deflection plate fixture 60 is inserted into the projector in order to incorporate the deflection plate 61, if the design of the entire projector is made small, the space for inserting the deflection plate fixture 60 is extremely small. It is common to become.

  Further, in the conventional deflection plate direction control device 200, when the angle of the deflection plate is controlled, the operator reaches out from the left side of the angle control device 200 and turns the micrometer M1, and from the right side of the angle control device 200. An operator needs to reach out and turn the micrometer M2. As described above, since the space for inserting the deflection plate fixture 60 is extremely small, there is a problem that it is not easy to reach the micrometers M1 and M2 and turn the micrometers M1 and M2. Further, since the micrometers M1 and M2 are provided in the opposite directions of the protrusions 63 of the deflection plate fixture 60, it is necessary to adjust the micrometer at two locations, and the adjustment work is complicated. There is a problem that there is.

SUMMARY OF THE INVENTION An object of the present invention is to provide a deflection plate fixing tool and a deflection plate angle control device that can easily adjust the deflection plate angle.

  The present invention provides a deflector plate fixture having a deflector plate, a frame body including a frame for fixing the deflector plate, a projecting portion projecting from the frame body, and a hole provided in the projecting portion. is there.

In addition, the present invention provides a deflection plate including a deflection plate, a frame body including a frame for fixing the deflection plate, a protrusion protruding from the frame, and a hole provided in the protrusion. The deflection plate is formed by pressing a support that supports the fixture, a pin that is provided on the support and that is inserted through the hole, and a protrusion that is provided on the support and is provided on the deflection plate fixture. A first screw that rotates the deflection plate, and a second screw that rotates the deflection plate by pressing a projection provided on the deflection plate fixture. With respect to the straight line connecting the center of the plate and the center of the hole, the first screw and the second screw are angle control devices for the deflection plate provided on the same side.

According to the present invention, since the screw for adjusting the angle of the deflection plate is provided in the same direction, there is an effect that the angle adjustment operation of the deflection plate is easy.

  The best mode for carrying out the invention is the following examples.

  FIG. 1 is a diagram showing a deflector plate fixture 10 that is Embodiment 1 of the present invention.

  The deflection plate fixture 10 includes a deflection plate 11, a frame body 12, a protrusion 13, and a hole 14.

  The deflection plate 11 is a normal deflection plate. The frame body 12 is a frame body having a frame for fixing the deflection plate 11. The protrusion 13 is a protrusion protruding from the frame body 12. The hole 14 is a hole provided in the protrusion 13. The pin 23 is a pin provided on the support 20 described later, and is a rotation center when the polarizing plate fixture 10 is rotated.

  FIG. 2 is a perspective view showing an angle control device 100 for a deflecting plate that is Embodiment 2 of the present invention.

  The angle control device 100 includes a support body 20, a pin 23, a first screw N1, and a second screw N2.

  The support 20 is a columnar support that supports the deflection plate fixture 10, and has a recess 21, a protrusion 22, a pin 23, and screw holes H 1 and H 2. Yes.

  The concave portion 21 is provided on the upper portion of the support 20 and is provided on the lower portion of the convex portion 22.

  The pin 23 is a pin that is provided on the convex portion 22 of the support 20 and passes through the hole 14 provided in the protrusion 13 of the deflection plate fixture 10.

  The first screw N <b> 1 is a screw that is provided on the convex portion 22 of the support 20 and rotates the deflection plate 11 by pressing the projection 13 provided on the deflection plate fixture 10.

  The second screw N2 is provided on the convex portion 22 of the support 20 and presses the projection 13 provided on the deflection plate fixture 10, thereby rotating the deflection plate 11 by the first screw N1. A screw that rotates in the opposite direction.

  And about the straight line which connects the center of the polarizing plate 11 and the center of the hole 14, the 1st screw | thread N1 and the 2nd screw | thread N2 are provided in the same side.

  The first screw N1 is a screw that rotates the deflection plate 11 counterclockwise by pressing the projection 13 provided on the deflection plate fixture 10. The second screw N <b> 2 is a screw that rotates the deflection plate 11 in the clockwise direction by pressing the projection 13 provided on the deflection plate fixture 10.

  Further, the first screw N1 and the second screw N2 are provided in parallel to each other.

  Next, the operation of the above embodiment will be described.

  FIG. 3 is an explanatory diagram of the operation of adjusting the angle of the deflection plate 11 in the above embodiment.

  FIG. 3A is a diagram showing a state in which the deflection plate 11 is set almost horizontally. That is, the state shown in FIG. 3A is a state in which the straight line connecting the center of the polarization anti-polarity 11 and the center of the hole 14 is substantially horizontal. FIG. 3B is a diagram illustrating a state in which the deflection plate 11 is rotated counterclockwise from the state illustrated in FIG. FIG. 3B is a diagram illustrating a state in which the deflection plate 11 is rotated clockwise from the state illustrated in FIG.

  In order to rotate the deflection plate 11 counterclockwise as shown in FIG. 3 (2) from the state shown in FIG. 3 (1), the screw N2 is loosened and its tip is pulled upward in FIG. Then, the screw N1 is tightened, and the tip is advanced downward in FIG. When adjusting the angle of the deflection plate 11, the degree to which the screw N2 is loosened and the degree to which the screw N1 is tightened may be adjusted. When the angle of the deflection plate 11 reaches a desired angle, the screw N1 is tightened to fix the desired angle.

  From the state shown in FIG. 3 (1), conversely, as shown in FIG. 3 (3), in order to rotate the deflecting plate 11 clockwise, the screw N1 is loosened and its tip is pulled upward in FIG. Then, the screw N2 is tightened, and the tip is advanced downward in FIG. When the angle of the deflection plate 11 reaches a desired angle, the screw N2 is tightened to fix the desired angle.

  According to the above embodiment, when the angle of the polarizing plate 11 is adjusted, it is sufficient to adjust the screws N1 and N2 from the same direction. Therefore, the operation of turning the screws N1 and N2 is easy. The adjustment work is easy.

  In addition, according to the above embodiment, when a micrometer or the like is used, the space for accommodating the micrometer, in particular, the polarizing plate fixture corresponding to the polarizing plate fixture 10 is thickened. Since the screws N1 and N2 are used instead of the micrometer, the thickness of the polarizing plate fixture 10 can be reduced. Therefore, the shape of a device such as a projector that houses the deflection plate angle control device 100 can be reduced. It can be made small.

  In other words, in the above-described embodiment, the deflection plate includes a deflection plate, a frame body including a frame for fixing the deflection plate, a projection portion protruding from the frame body, and a hole provided in the projection portion. It is an example of a fixing tool.

  Moreover, the said Example is a deflection | deviation provided with the deflecting plate, the frame which comprises the frame which fixes the said deflecting plate, the projection part which protrudes from the said frame, and the hole provided in the said projection part The deflection is achieved by pressing a support that supports the plate fixture, a pin that is provided on the support and that passes through the hole, and a protrusion that is provided on the support and provided on the deflection plate fixture. A first screw for rotating the plate, and a second screw for rotating the deflection plate by pressing a protrusion provided on the support and provided on the deflection plate fixture. The deflection plate angle control device in which the first screw and the second screw are provided on the same side with respect to a straight line connecting the center of the polarizing plate and the center of the hole.

In this case, the first screw is a screw that rotates the deflection plate in a clockwise direction by pressing a protrusion provided on the deflection plate fixture, and the second screw is the deflection plate. It is a screw that rotates the deflection plate counterclockwise by pressing a projection provided on the fixture. The first screw and the second screw are provided in parallel to each other.

It is a perspective view which shows the angle control apparatus 200 of the conventional deflection | deviation plate. It is a figure which shows the deflection plate fixing tool 10 which is Example 1 of this invention. It is a perspective view which shows the angle control apparatus 100 of the deflection plate which is Example 2 of this invention. In the said Example, it is explanatory drawing of the operation | movement which adjusts the angle of the deflection | deviation plate.

Explanation of symbols

100 ... Deflection plate angle control device,
10: Deflection plate fixture,
11 ... deflection plate,
12 ... the frame,
13 ... protrusions,
14 ... hole,
20 ... support,
21 ... recess,
22 ... convex part,
23 ... pin,
H1, H2 ... Screw holes,
N1, N2 ... Screws.

Claims (4)

A deflection plate;
A frame having a frame for fixing the deflection plate;
A protrusion protruding from the frame;
A hole provided in the protrusion;
A deflector plate fixture characterized by comprising: A support for supporting a deflection plate fixture comprising: a deflection plate; a frame body including a frame for fixing the deflection plate; a projection portion protruding from the frame body; and a hole provided in the projection portion. With the body;
A pin provided on the support and inserted through the hole;
A first screw provided on the support and rotating the deflection plate by pressing a protrusion provided on the deflection plate fixture;
A second screw provided on the support and rotating the deflection plate by pressing a projection provided on the deflection plate fixture;
The deflection plate is characterized in that the first screw and the second screw are provided on the same side with respect to a straight line connecting the center of the polarizing plate and the center of the hole. Angle control device. In claim 2,
The first screw is a screw that rotates the deflection plate clockwise by pressing a protrusion provided on the deflection plate fixture.
The deflection plate angle control device according to claim 1, wherein the second screw is a screw that rotates the deflection plate counterclockwise by pressing a protrusion provided on the deflection plate fixture. In claim 2,
The deflection plate angle control device, wherein the first screw and the second screw are provided in parallel to each other.

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