JP2006317850A - Projector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To make possible for an operator to freely and manually fix the orientation of a light receiving module in four directions, and also, to eliminate the risk of disconnection due to the distortion of a signal conductor. <P>SOLUTION: The projector includes the light receiving module 2, an operation knob 3 wherein the light receiving module 2 is eccentrically located, a wiring substrate 7 including fixation-side electrodes 71 arranged in four positions, a rotating movable plate 4, a partitioning plate 5, a stopper member 6, four recessed parts 53 formed in the partitioning plate 5 so as to insert/pull the projecting piece 41 of the rotating movable plate 4 to/from the parts 53, a space S under the partitioning plate 5, a positioning rib 54 arranged behind the partitioning plate 5, and a hole part 15 formed in a top cover 11 so that the operation knob 3 may project upwards. When the projection piece 41 is positioned by the positioning rib 54 in the space S, the electrode 21 of the light receiving module 2 comes in contact with either of the fixation side electrodes 71 to 74 of the wiring substrate 7. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a projector, and more particularly to a projector including a light receiving module that receives an optical signal for control of a remote controller.

  In a projector, a control optical signal output from a remote controller is received by a light receiving module to perform necessary operations such as enlargement or reduction of a projected image. In such a conventional projector, where the light receiving module is mounted facing the front of the projector case, the operator can control the optical signal for controlling the remote controller while viewing the image projected on the reflective screen by the projector. (Infrared rays) are reflected by the reflective screen to reach the light receiving module (see, for example, Patent Document 1). And in the technique proposed by this patent document 1, the remote controller can be attached to and detached from the projector. In another conventional projector, a reflection mirror is provided in front of the projection lens of the projector including the light receiving unit, and the infrared light emitted from the remote control transmitter (remote controller) is reflected by the reflection mirror to the light receiving unit. Remote control is possible by guiding (see, for example, Patent Document 2).

  It can be said that each conventional example proposed by Patent Document 1 and Patent Document 2 adopts a method of reflecting a control optical signal output by a remote controller to reach the light receiving module.

  On the other hand, by making the light-receiving unit provided in the projector tiltable, the direction of the direction can be selected from two directions of the front and the rear (for example, see JP-A-9-9375), There is also one in which the light receiving unit of a vibration receiving unit that receives an infrared signal transmitted from a remote control transmitter is rotated for light reception (see, for example, Japanese Patent Laid-Open No. 7-199352).

It can be said that each conventional example proposed by Patent Document 3 and Patent Document 4 employs a method of causing a control signal of a remote controller to reach a light receiving module directly.
Japanese Utility Model Publication No. 64-3833 JP-A-6-38070 Japanese Patent Laid-Open No. 9-9375 Japanese Patent Laid-Open No. 7-199352

  However, as seen in Patent Document 1 and Patent Document 2, in the method of reflecting the control optical signal to reach the light receiving module, it is considered that the optical signal intensity is attenuated by reflection. If the operator wants to increase the distance to the projector, that is, if the operator wants to perform control far away from the projector, the separation distance may be reduced compared to the method in which the control light signal is directly delivered to the light receiving module. There is.

  Also, as in Patent Document 3, in which the light receiving unit can be tilted so that the directing direction can be selected from two directions of the front and the rear, the operator is located on the left and right sides of the projector and operates the remote controller. In this case, there is a disadvantage that the control optical signal does not easily reach the light receiving module. Further, in the one shown in Patent Document 4, since the light receiving unit is swung for light reception, the control optical signal can reach the light receiving module directly from any direction. In this Patent Document 4, a drive circuit and a control circuit for turning the light receiving unit are required, and the configuration thereof is complicated. In addition, both the light receiving unit and the wiring board are rotated. In addition, the signal line connected to the connector may be twisted and easily broken, and the range in which the light receiving unit can be rotated may be limited.

  The present invention has been made in view of the above situation and problems, and the directivity direction of the light receiving module can be freely determined manually at four equiangular positions such as front, rear, left and right, and the directivity direction can be determined in any direction. It is an object of the present invention to provide a projector that is capable of causing a control light signal for a remote controller to directly reach the light-receiving module even in the case where it is determined in the above, but does not cause a disconnection due to a twist of a signal line or the like. .

  The projector according to the present invention includes a light receiving module that receives an optical signal for control of a remote controller, an operation knob that is manually rotated with the light receiving module at an eccentric position, and four rotation angle intervals of the operation knob. And a wiring board provided with fixed-side electrodes that can be selectively contacted with electrodes provided in the light receiving module.

  With this configuration, it is possible to determine the directivity direction of the light receiving module to one of four directions orthogonal to each other by manually rotating the operation knob. The electrode of the received light receiving module can be brought into contact with the fixed side electrode of the wiring board without passing through the signal line. As a result, the remote controller control light signal can reach the light receiving module directly from any direction around the projector, and the intensity of the light signal reaching the light receiving module is related to the direction of the light receiving module. The operation reliability is improved because it is kept almost constant. In addition, since the electrode of the light receiving module is brought into contact with the fixed side electrode of the wiring board after the light receiving module is rotated, there is no room for a situation where the signal line is twisted and disconnected even if the light receiving module is rotated. .

  When the light receiving module is directed in any one of the four directions of front, rear, left and right through manual rotation operation of the operation knob, the electrodes provided in the light receiving module are provided on the wiring board. This is also exhibited by one configured to contact any one of the four fixed electrodes.

  In the present invention, the operation knob having the light receiving module is provided with a rotating movable plate through which the electrode of the light receiving module penetrates and extends to the lower side. The rotating movable plate and the rotating movable plate are disposed below the rotating movable plate. A partition plate having an opening in which the rotary movable plate can be inserted and removed in the vertical direction is provided between the wiring substrate, the rotary movable plate is provided with a protruding piece protruding outward, and the partition plate At four locations around the opening, there are formed recesses into which the protrusions of the rotary movable plate can be inserted and removed in the vertical direction, and the rotation when the protrusions of the rotary movable plate are inserted into any of the recesses. The movable plate is inserted into the opening of the partition plate, the electrode of the light receiving module contacts one of the four fixed-side electrodes of the wiring board, and the projecting piece of the rotary movable plate is connected to the partition plate. Receive light by being mounted on The electrode of the Joule it is possible to adopt a structure that is configured to be held in floating position from the wiring substrate.

  According to this, since the electrode of the light receiving module does not rub against the fixed side electrode of the wiring board even if the light receiving module is rotated, it is not necessary to provide the slide function to the electrode or the fixed side electrode, and the slide There is an advantage that these electrodes and the stationary electrode are not damaged even if the function is not provided. In addition, the cooperation of the partition plate having the opening and the recess and the rotary movable plate having the projecting piece ensures that the electrode of the light receiving module in which the directing direction is determined contacts the fixed side electrode of the wiring board. In addition, it is possible to improve the reliability of the operation with a simple configuration.

  In the present invention, when the wiring board is constantly biased upward by a spring force and the electrode of the light receiving module comes into contact with the fixed electrode of the wiring board, the wiring board is subjected to the spring force. It is desirable that the spring force is lowered and the weight of the operation knob having the light receiving module is balanced. According to this, when the operation knob is artificially pushed down, the pushing force is absorbed by the lowering of the wiring board, so that an excessive force is not easily applied to the electrode of the light receiving module or the fixed side electrode of the wiring board. .

  In the present invention, it is desirable that the operation knob is rotatably disposed in a hole formed in the top cover of the projector and protrudes above the top cover. According to this, it is easy for the operator to manually rotate the operation knob before the image is displayed on the screen after the projector is installed at a fixed position.

  In the present invention, the operation knob having the light receiving module is provided with a rotating movable plate through which the electrode of the light receiving module penetrates and extends to the lower side. The rotating movable plate and the rotating movable plate are disposed below the rotating movable plate. A partition plate having an opening in which the rotary movable plate can be inserted and removed in the vertical direction between the wiring substrate and the upper limit position of the wiring substrate in contact with the wiring substrate that is always elastically biased upward by a spring body A stopper member that restricts the movement of the rotary movable plate, and the rotary movable plate is provided with a protruding piece that protrudes outward, and the protruding pieces of the rotary movable plate are vertically arranged at four locations around the opening of the partition plate. When the projecting piece of the rotary movable plate is inserted into any one of the recesses, the rotary movable plate is inserted into the opening of the partition plate so that the electrode of the light receiving module is On the board surface of the wiring board The electrode of the light receiving module is configured to be held in a raised position from the wiring board by touching and mounting the projecting piece of the rotary movable plate on the partition plate. It is also possible to adopt a configuration in which a space allowing the rotation of the protruding piece inserted through the recess of the partition plate is formed on the lower side.

  In the present invention, the rear side of the partition plate is provided with a positioning rib that contacts the protruding piece rotated in the space and positions the protruding piece, and when the protruding piece is positioned by the positioning rib, In a state where the electrode of the light receiving module pushes down the wiring board against the spring force of the spring body, the electrode contacts one of the four fixed side electrodes of the wiring board, and the spring It is desirable that the rotary movable plate be pressed against the stopper member by the spring force of the body. When this configuration is adopted, the rotation angle of the operation knob provided with the rotary movable plate can be regulated by the positioning rib, so that the protruding piece of the rotary movable plate can be easily aligned with the recess of the partition plate, thereby improving the operability. When the electrode of the light receiving module is in contact with the fixed-side electrode of the wiring board, contact pressure by the spring force of the spring body is applied to the contact location, and high contact stability is obtained.

  In the present invention, it is desirable that the operation knob is rotatably disposed in a hole formed in the top cover of the projector and protrudes above the top cover. According to this, it is easy for the operator to manually rotate the operation knob before the image is displayed on the screen after the projector is installed at a fixed position.

  The projector according to the present invention includes a light receiving module that receives an optical signal for control of a remote controller, an operation knob that is manually rotated with the light receiving module at an eccentric position, and four rotation angle intervals of the operation knob. A wiring board provided with a fixed side electrode which is arranged at a location and can be selectively contacted with an electrode provided on the light receiving module, and the operation knob having the light receiving module. An opening provided between the rotary movable plate extending downward and the rotary movable plate and the wiring board provided below the rotary movable plate so that the rotary movable plate can be inserted and removed vertically. The partition plate having the projecting piece projecting outwardly provided on the rotating movable plate, and the opening of the partition plate at four equiangular intervals around the opening. When the protruding part of the plate can be inserted / removed in the vertical direction and the wiring board is always urged by the spring force upward, and the electrode of the light receiving module comes into contact with the fixed electrode of the wiring board A spring body that lowers the wiring board against the spring force to balance the spring force and the weight of the operation knob having the light receiving module, and is formed on the top cover of the projector so that the operation knob is And a hole portion having a hole edge that abuts against the rotary movable plate and prevents the operation knob from being pulled out, and the light receiving module is moved forward, backward, left and right through manual rotation of the operation knob. When the projecting piece of the rotary movable plate is inserted into any one of the recesses when it is directed in any one of the directions, the rotary movable plate is inserted into the opening of the partition plate. The light receiving module is configured such that the electrode of the light receiving module is in contact with any one of the four fixed-side electrodes of the wiring board, and the projecting piece of the rotatable movable plate is mounted on the partition plate. This is further embodied by adopting a configuration in which the electrode is configured to be held at a position lifted from the wiring board. The operation of the present invention will be described in detail with reference to embodiments described later.

  The projector according to the present invention includes a light receiving module that receives an optical signal for control of a remote controller, an operation knob that has the light receiving module at an eccentric portion, and is manually rotated, and the rotation direction of the operation knob is set at equal angles. Provided on the operation board having the light receiving module and the wiring board provided with the fixed side electrode which is provided at the four locations and can be selectively contacted with the electrode provided on the light receiving module. A rotary movable plate extending below the rotary movable plate, and an opening that is provided between the rotary movable plate and the wiring board below the rotary movable plate so that the rotary movable plate can be inserted and removed in a vertical direction. A partition plate having the upper limit of the wiring board that is disposed between the partition board and the wiring board, and is in contact with the wiring board that is always elastically biased upward by a spring body. A stopper member for restricting the position, a protruding piece provided on the rotary movable plate and projecting outward, and a protrusion of the rotary movable plate formed at four positions around the opening of the partition plate at equal angles. Provided in a recess in which a piece can be inserted and removed in the vertical direction, a space formed on the lower side of the partition plate to allow rotation of the protruding piece inserted into the recess of the partition plate, and a back side of the partition plate And a positioning rib that contacts the projecting piece rotating in the space and positions the projecting piece, and is formed on the top cover of the projector so that the operation knob projects upward, and the rotation A hole portion having a hole edge that comes into contact with the movable plate and prevents the operation knob from being pulled out, and the rotatable movable plate when the protruding piece of the rotatable movable plate is inserted into any one of the recesses At the opening of the partition plate The electrode of the light receiving module comes into contact with the plate surface of the wiring board, and the projecting piece of the rotary movable plate is mounted on the partition plate so that the electrode of the light receiving module is detached from the wiring board. The electrode of the light receiving module pushes down the wiring board against the spring force of the spring body when the protruding piece is positioned by the positioning rib. In this state, the electrode is in contact with any one of the four fixed-side electrodes of the wiring board, and the protruding piece is pressed against the stopper member by the spring force of the spring body. It is further embodied by adopting the configuration of. This invention will also be described in detail with reference to other embodiments described later.

  As described above, according to the projector according to the present invention, the operator can freely determine the directivity direction of the light receiving module manually at four positions at equal angles such as front, rear, left, and right. It is possible to make the optical signal for control of the remote controller reach the light receiving module directly even in the case where it is determined as follows. Therefore, the operator can directly reach the light-receiving module with the remote controller from any position away from the projector in any direction, and the operability is improved. In addition to the necessity of configuring a drive circuit for turning the module, an excellent effect is obtained that there is no fear of disconnection due to twisting of the signal line.

  FIG. 1 is a schematic external view of a projector according to an embodiment of the present invention, FIG. 2 is an exploded perspective view of a light receiving unit constituent member, FIG. 3 is a front view of a light receiving module 2, and FIG. 5 is a plan view of the partition plate 5, FIG. 6 is a pattern diagram of the fixed-side electrodes 71 to 74 of the wiring board 7, FIG. 7 is a schematic cross-sectional view in the standby mode of the light-receiving unit, and FIG. FIG. 9 is a schematic sectional view, and FIG.

  As shown in FIG. 1, this projector has an optical system element and other necessary parts incorporated in a box-shaped housing 1 formed by combining a top cover 11, a bottom cover 12, a front panel 13, and the like. The projection barrel 14 is arranged on the front surface of the housing 1. A dial-type operation knob 3 provided with the light receiving module 2 protrudes above the top cover 11 through a circular hole 15 formed in the top cover 11.

  The light receiving module 2 shown in FIG. 3 includes three pin-type electrodes 21 including an output electrode 22, a ground electrode 23, and a power supply electrode 24, and a light receiving window 25 on the upper front surface thereof. Thus, the light receiving module 2 receives the control optical signal transmitted from the front of the light receiving window 25. A sheet metal leg piece 26 is also provided. The light receiving module 2 is capable of receiving a control optical signal transmitted not only in front of the light receiving window 25 but also from a position located within a certain opening angle region in front of the light receiving window 25. is doing. As shown in FIG. 7 or 8, the light receiving module 2 is attached to the rotary movable plate 4 via the leg pieces 26 at the eccentric portion of the operation knob 3 together with the operation knob 3. Therefore, when the operation knob 3 is rotated around its axis, the light receiving module 2 rotates around the axis of the operation knob 3 with the electrode 21 to change the direction of the light receiving window 25.

  As shown in FIG. 2 or 4, the rotary movable plate 4 is circular, and is integrally provided with a protruding piece 41 protruding outward at one place in the circumferential direction. Further, the three electrodes 21 of the light receiving module attached to the rotary movable plate 4 are individually inserted into the respective three through holes 42 formed side by side on the rotary movable plate 4 so as to be underneath. It extends. The hole edge of the hole portion 15 of the top cover 11 is in contact with the rotary movable plate 41 and serves to prevent the operation knob 3 from being pulled out.

  As shown in FIG. 2, FIG. 7, or FIG. 8, a partition plate 5 is provided corresponding to the rotary movable plate 4. As shown in FIG. 5, the partition plate 5 is formed with circular openings 51 into which the rotatable movable plate 4 can be inserted and removed in the vertical direction, and the projecting pieces 41 are provided at four positions at equal angles of the opening 5. Is provided with a recess 52 that can be inserted and removed in the vertical direction. Therefore, when the projecting piece 41 is aligned with any one of the four recesses 52 and inserted into the recesses, the rotary movable plate 4 falls into the openings 51 of the partition plate 5 to open the opening. 51 is inserted.

  The partition plate 5 is supported by a plate-like stopper member 6. The electrode 21 of the light receiving module 2 is inserted into the stopper member 6, and the electrode 21 rotates in accordance with the manual rotation operation of the operation knob 3. A permissible opening 61 is formed. A wiring board 7 is provided below the stopper member 6, and a spring body 9 made of a coil spring is provided between the wiring board 7 and the lower fixing plate 8. Thus, the wiring board 7 is constantly urged and urged upward. Then, as shown in FIG. 7, the upper limit position of the wiring board 7 is regulated by the wiring board 7 coming into contact with the stopper member 6.

  As shown in FIG. 6, the wiring board 7 corresponds to the electrode 21 at four positions at equal angles along the rotation path L of the electrode 21 of the light receiving module 2, that is, at four positions at equal angles in the rotation direction of the operation knob 3. The fixed-side electrodes 71, 72, 73, and 74 are provided. The fixed-side electrodes 71 to 74 are provided with the output electrode 22, the ground electrode 23, and the power source that form the electrode 21 of the light receiving module 2. Three electrodes a, b, and c corresponding to the electrodes 24 are included. The electrodes 21 of the light receiving module 2 can selectively contact each of the four fixed-side electrodes 71 to 74.

  In the above configuration, when the light receiving module 2 is in the standby mode, the projecting piece 41 of the rotatable movable plate 4 is placed on the partition plate 5 as shown in FIG. 7, and in this state, the electrode 21 of the light receiving module 2 is placed. Is held at a lifted position away from the wiring board 7.

  From this state, the operator manually rotates the operation knob 3 so that the protruding piece 41 of the rotary movable plate 4 is aligned with any one of the recesses 52 of the partition plate 5 and the operation knob 3 is pushed down or operated. When the finger is released from the knob 3, the projecting piece 41 is inserted into the recess 52 and the rotatable movable plate 4 is inserted into the opening 51 of the partition plate 5 as shown in FIG. 8. Therefore, the electrode 21 of the light receiving module 2 contacts one fixed side electrode on the wiring board 7 side, for example, the fixed side electrode 71, and the light receiving module 2 is switched to the operation mode. When the light receiving module 2 is switched to the operation mode, the weight of the operation knob 3 and the rotary movable plate 4 having the light receiving module 2 is applied downward to the wiring board 7, so that the wiring board 7 is applied to the spring force of the spring body 9. As a result, the spring force of the spring body 9 and the weight are balanced.

  Thus, when the light receiving module 2 is held in the operation mode, not only the front of the light receiving window 25 but also the control light transmitted from a position located within a certain opening angle region in front of the light receiving window 25 as a starting point. Can receive a signal. Therefore, when the operator transmits a control optical signal using such a remote controller within such an angle region, the light receiving module 2 receives the optical signal and performs predetermined control.

  In this embodiment, recesses 52 are formed at four equiangular positions of the openings 51 of the partition plate 5, and the projecting pieces 41 of the rotary movable plate 4 are selectively placed in one of the respective recesses 52. Since it is configured to be insertable, the directing direction of the light receiving window 25 in the operation mode of the light receiving module 2 is determined depending on which recess 52 the operator inserts the projecting piece 41 by manually rotating the operation knob 3. Switching to four directions is possible. Therefore, as shown in FIG. 9, for example, when the light receiving module 2 is directed forward, the projector can be controlled by operating the remote controller 100 in front thereof. Further, as indicated by a virtual line in the figure, when the operator needs to operate the remote controller 100 to the left side of the projector, the operation knob 3 is rotated in advance to change the pointing direction in the operation mode of the light receiving module 2. You can set it to the left. Furthermore, if the directivity direction in the operation mode of the light receiving module 2 is set to the rear or the right side of the projector, the operator can operate the remote controller by being positioned to the rear or the right side of the projector. In these cases, the light receiving module 2 can receive a control light signal transmitted from a position located within a certain opening angle region in front of the light receiving window 25, and therefore directs the light receiving module 2 to direct light. In the projector according to this embodiment, which can determine the direction at four positions, front, rear, left, and right, the remote controller can be operated from all directions A, B, C, and D shown in FIG. In FIG. 9, an arrow R indicates a manual rotation operation direction of the operation knob 3.

  In this embodiment, when the operation knob 3 is manually rotated, the rotary movable plate 4 is extracted from the opening 51 of the partition plate 5 and rotated above the partition plate 5. During rotation, the electrode 21 of the light receiving module 2 floats away from the wiring board 7. Therefore, a situation in which the electrode 21 rubs against and damages the fixed-side electrodes 71 to 74 of the wiring board 7 cannot occur.

  10 is a schematic cross-sectional view of a light receiving unit according to another embodiment of the present invention in a standby mode, FIG. 11 is a schematic cross-sectional view of the light receiving unit in an operation mode, and FIG. FIG. 13 is a schematic perspective view seen from the side, and FIG.

  In this embodiment, the configuration of the partition plate 5 is different from that already described. That is, the partition plate 5 according to this embodiment has ribs protruding downward to one side of each of the recesses 53 provided at four positions at equal intervals around the circular opening 51 as shown in FIG. And a positioning rib 55 provided on the back side of the partition plate 5 between the recesses 53. The protrusion 41 of the rotary movable plate 4 can be selectively inserted into and removed from the four recesses 53 in the vertical direction, and the rotary movable plate 4 itself can be inserted into and removed from the opening 51 of the partition plate 5 in the vertical direction. It is. Further, as shown in FIG. 10 or FIG. 11, a space S that allows rotation of the projecting piece 41 of the rotatable movable plate 4 inserted into the recess 53 of the partition plate 5 is secured below the partition plate 5. ing.

  With this configuration, when the projecting piece 41 of the rotatable movable plate 4 is inserted into one of the recesses 53 and the rotatable movable plate 4 protrudes below the opening 51 of the partition plate 5, the electrode 21 of the light receiving module 2. Comes into contact with the plate surface of the wiring board 7 and pushes down the wiring board 7 against the urging force of the spring body 9 so that the projecting piece 41 is positioned in the space S. When the projecting piece 41 is positioned in the space S and the operator rotates the operation knob 3 to bring the projecting piece 41 into contact with the positioning rib 55 as shown by an imaginary line in FIG. The piece 41 is positioned at that position, and the electrode 21 of the light receiving module 2 comes into contact with one of the fixed-side electrodes 71 of the wiring board 7 as shown in FIG. Therefore, when the operator releases his hand from the operation knob 3, the projecting piece 41 is pressed against the stopper member 6 by the spring force of the spring body 9, and the electrode 21 and the fixed electrode 71 are kept in a state of elastic contact.

  Other configurations are the same as those described with reference to FIGS. 1 to 8, and detailed description thereof is omitted to avoid duplication of description.

  The projector of this embodiment can also operate the remote controller from all directions A, B, C, and D in the same manner as described with reference to FIG. In FIG. 13, an arrow R <b> 1 indicates a manual rotation operation direction of the operation knob 3. In this embodiment, the positioning piece 54 serves to align the protrusion 41 with the recess 53 when the protrusion 41 is pulled upward from the recess 53.

1 is a schematic external view of a projector according to an embodiment of the invention. It is a disassembled perspective view of a light-receiving part structural member. It is a front view of a light receiving module. It is a top view of a rotation movable board. It is a top view of a partition plate. It is a pattern figure of the fixed side electrode of a wiring board. It is a schematic sectional drawing in the standby mode of a light-receiving part. It is a schematic sectional drawing in the operation mode of a light-receiving part. It is an operation explanatory view. It is a schematic sectional drawing in the standby mode of the light-receiving part which concerns on other embodiment of this invention. It is a schematic sectional drawing in the operation mode of a light-receiving part. It is the schematic perspective view which looked at the partition plate from the lower side. It is an operation explanatory view.

Explanation of symbols

2 Light receiving module 3 Operation knob 4 Rotating movable plate 5 Partition plate 6 Stopper member 7 Wiring board 9 Spring body 11 Top cover 15 Hole 21 Light receiving module electrode 41 Projection piece 51 Opening 52, 53 Recess 55 Positioning rib 71-74 fixed Side electrode 100 Remote controller S Space

Claims (10)

A light receiving module that receives a light signal for controlling the remote controller;
An operation knob that has this light receiving module at an eccentric portion and is manually rotated,
A wiring board provided with fixed-side electrodes that can be selectively contacted with electrodes provided in the light receiving module arranged at four positions at equal angular intervals in the rotation direction of the operation knob;
Provided in the operation knob having a light receiving module, a rotating movable plate through which the electrode of the light receiving module penetrates and extends downward;
A partition plate provided between the rotary movable plate and the wiring board provided on the lower side of the rotary movable plate and having an opening in which the rotary movable plate can be inserted and removed in a vertical direction;
Protruding pieces that are provided on the rotary movable plate and project outward, and formed at four locations around the opening of the partition plate at equiangular intervals, and can be inserted and removed in the vertical direction. With a recess,
The wiring board is always urged upward by a spring force, and when the electrode of the light receiving module comes into contact with the fixed electrode of the wiring board, the wiring board is lowered against the spring force. A spring body for balancing the spring force and the weight of the operation knob having the light receiving module;
A hole portion formed on a top cover of the projector to project the operation knob upward, and having a hole edge that contacts the rotary movable plate and prevents the operation knob from being pulled out,
When the light receiving module is directed in any one of the four directions of front, rear, left and right through manual rotation of the operation knob, the protrusion of the rotary movable plate is inserted into any one of the recesses. The rotating movable plate is inserted into the opening of the partition plate, the electrode of the light receiving module is in contact with any one of the four fixed side electrodes of the wiring board, and the protruding piece of the rotating movable plate is A projector configured to be mounted on a partition plate so that the electrode of the light receiving module is held at a position lifted from the wiring board. A light receiving module that receives a light signal for controlling the remote controller;
An operation knob that has this light receiving module at an eccentric portion and is manually rotated,
A wiring board provided with fixed-side electrodes that can be selectively contacted with electrodes provided in the light receiving module arranged at four positions at equal angular intervals in the rotation direction of the operation knob;
Provided in the operation knob having a light receiving module, a rotating movable plate through which the electrode of the light receiving module penetrates and extends downward;
A partition plate provided between the rotary movable plate and the wiring board on the lower side of the rotary movable plate, and having an opening in which the rotary movable plate can be inserted and removed in a vertical direction;
A stopper member that is disposed between the partition plate and the wiring board and contacts the wiring board that is always elastically biased upward by a spring body to regulate the upper limit position of the wiring board;
Protruding pieces that are provided on the rotary movable plate and project outward, and formed at four locations around the opening of the partition plate at equiangular intervals, and can be inserted and removed in the vertical direction. With a recess,
A space that is formed on the lower side of the partition plate and allows rotation of the protruding piece inserted into the recess of the partition plate; and
A positioning rib that is provided on the back side of the partition plate and contacts the projecting piece rotated in the space to position the projecting piece;
A hole portion formed on a top cover of the projector to project the operation knob upward, and having a hole edge that contacts the rotary movable plate and prevents the operation knob from being pulled out,
When the projecting piece of the rotating movable plate is inserted into any one of the recesses, the rotating movable plate is inserted into the opening of the partition plate, and the electrode of the light receiving module contacts the plate surface of the wiring board, In addition, the projecting piece of the rotary movable plate is mounted on the partition plate, so that the electrode of the light receiving module is held at the lifted position from the wiring board, and the positioning ribs When the projecting piece is positioned, the electrode of the light receiving module pushes down the wiring board against the spring force of the spring body, and the electrode is one of the four fixed-side electrodes of the wiring board. A projector configured to be in contact with any one of the protrusions and to be pressed against the stopper member by a spring force of the spring body. A light receiving module that receives a light signal for controlling the remote controller;
An operation knob that has this light receiving module at an eccentric position and is manually rotated, and electrodes provided on the light receiving module arranged at four positions at equal angles in the rotation direction of the operation knob can be selectively contacted. A projector comprising: a wiring board including a fixed side electrode. When the light receiving module is directed in any one of the four directions of front, rear, left, and right through manual rotation of the operation knob, the electrodes included in the light receiving module are provided at four positions provided on the wiring board. The projector according to claim 3, wherein the projector is configured to contact any one of the fixed side electrodes. The operation knob having the light receiving module is provided with a rotary movable plate through which the electrode of the light receiving module penetrates and extends to the lower side, and the rotary movable plate and the wiring board disposed below the rotary movable plate; A partition plate having an opening through which the rotary movable plate can be inserted / removed in the vertical direction is provided, and the rotary movable plate is provided with a protruding piece protruding outward, and around the opening 4 of the partition plate. A recess is formed at a location where the protruding piece of the rotary movable plate can be inserted and removed in the vertical direction, and when the protruding piece of the rotary movable plate is inserted into any one of the recesses, the rotary movable plate is The electrode of the light receiving module is inserted into the opening of the partition plate and contacts one of the four fixed-side electrodes of the wiring board, and the projecting piece of the rotary movable plate is mounted on the partition plate Of the light receiving module Projector serial electrode according to claim 3 or claim 4 is configured to be held in floating position from the wiring substrate. When the wiring board is constantly urged upward by a spring force, and the electrode of the light receiving module comes into contact with the fixed electrode of the wiring board, the wiring board descends against the spring force. 6. The projector according to claim 5, wherein the spring force and the weight of the operation knob having the light receiving module are balanced. The projector according to claim 5 or 6, wherein the operation knob is rotatably disposed in a hole formed in the top cover of the projector and protrudes above the top cover. The operation knob having the light receiving module is provided with a rotary movable plate through which the electrode of the light receiving module penetrates and extends to the lower side, and the rotary movable plate and the wiring board disposed below the rotary movable plate; A partition plate having an opening in which the rotary movable plate can be inserted and removed in the vertical direction, and a stopper that abuts against the wiring substrate that is always elastically biased upward by a spring body and regulates the upper limit position of the wiring substrate Members are deployed,
The rotating movable plate is provided with protruding pieces protruding outward, and recesses are formed at four locations around the opening of the partition plate in which the protruding pieces of the rotating movable plate can be inserted and removed in the vertical direction. When the projecting piece of the rotating movable plate is inserted into any one of the recesses, the rotating movable plate is inserted into the opening of the partition plate, and the electrode of the light receiving module contacts the plate surface of the wiring board, And it is constituted so that the above-mentioned electrode of the light-receiving module is held at the raised position from the above-mentioned wiring board by mounting the projecting piece of the rotary movable plate on the above-mentioned partition plate,
5. The projector according to claim 3, wherein a space that allows rotation of the protruding piece inserted into the recess of the partition plate is formed below the partition plate. 6. A positioning rib is provided on the back side of the partition plate for positioning the protruding piece in contact with the protruding piece rotated in the space, and when the protruding piece is positioned by the positioning rib, In a state where the electrode pushes down the wiring board against the spring force of the spring body, the electrode contacts any one of the four fixed-side electrodes of the wiring board, and the spring force of the spring body The projector according to claim 8, wherein the rotary movable plate is configured to be pressed against the stopper member. The projector according to claim 8 or 9, wherein the operation knob is rotatably provided in a hole formed in the top cover of the projector and protrudes above the top cover.

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