JP4243153B2 - Remote control light receiving unit - Google Patents

Description

  The present invention relates to a remote control light receiving unit, and more particularly to a remote control light receiving unit that is applied to a remote control light receiving unit of an electronic device such as a television receiver or an air conditioner and receives infrared light from a remote control transmitter.

  An example of a conventional remote control light receiving unit of this type is disclosed in Patent Document 1 and Patent Document 2.

  In the prior art of Patent Document 1, the remote control light-receiving unit is attached so as to be able to rotate with respect to three rotation axes orthogonal to each other. For this reason, the remote control light receiving unit can be directed in an arbitrary direction.

In the prior art of Patent Document 2, holding portions are provided on the top, bottom, left, and right of the light receiving portion cover that covers the light receiving element, and the light receiving portion cover is rotatably attached to the light receiving portion main body by the holding portion. For this reason, the remote control light receiving unit can be directed in an arbitrary direction by picking the light receiving unit cover with a finger and changing the direction.
JP-A-4-107538 [G03B 17/38] JP-A-6-261004 [H04B 10/10, H04B 10/22, F24F 11/02, H02J 13/00]

  In the prior art of Patent Document 1, the remote control light receiving unit is attached so as to be rotatable with respect to the three axes, and the light receiving direction is changed, so that the mechanism becomes complicated. Moreover, in the prior art of patent document 2, since the light receiving part is rotatably attached to the light receiving part main body by the holding part attached around the light receiving part cover, the mechanism becomes complicated.

  Therefore, a main object of the present invention is to provide a remote control light receiving unit which can easily change the light receiving direction of the remote control light receiving unit with a simple mechanism.

  The invention of claim 1 is a remote control light receiving unit for receiving light from a remote control transmitter, a support plate having an opening serving as a rotation fulcrum, a guide plate formed at a predetermined interval from the support plate, A guide groove formed on the guide plate, and a remote control receiver attached to the other end side of the support portion and the other end side of the support portion, the other end side of which is rotatably supported by the opening and the other end side is rotatably supported in the guide groove The remote control light receiving unit includes a light receiver including a light receiving unit that receives light.

  In the first aspect of the invention, one end side of the support portion of the light receiver is supported by an opening formed in the support plate. Further, the other end side of the support portion is held by a guide groove formed in the guide plate. In this state, when a force is applied to the light receiving portion along the guide groove, the other end side of the support portion is displaced in the guide groove, so that the light receiving portion also moves on the guide plate. For this reason, the light receiving direction of the light receiving unit can be easily changed according to the incident direction of light from the remote control transmitter.

  The invention according to claim 2 is the remote control light receiving unit according to claim 1, wherein the guide plate is curved with a constant curvature and the support portion of the light receiver has a constant length.

  In the invention of claim 2, since the guide plate is curved with a constant curvature, even if the light receiver is moved, the light receiving portion is always on the surface of the guide plate, and the normal direction of the guide plate at that position Facing. For this reason, even if the light from the remote control transmitter is incident from an oblique direction, it can be reliably received.

  The invention according to claim 3 is the remote control light receiving unit according to claim 1 or 2, wherein the guide groove includes a plurality of holding portions for holding the support portion of the light receiver and a separation portion for separating the plurality of holding portions from each other.

  In the invention of claim 3, when a force is applied to the light receiving portion, the support portion of the light receiver can pass through the separation portion while being subjected to frictional resistance and can be moved to the adjacent holding portion. If no force is applied to the light receiving portion, the light receiving device is held by the holding portion, so that the light receiving device can be stopped on the guide plate. For this reason, the light receiving direction can be kept constant unless a force is applied to the light receiver to move it.

  According to a fourth aspect of the present invention, two pressing plates larger than the groove width of the guide groove are formed on the support portion of the light receiver so as to face each other with an interval corresponding to the thickness of the guide plate. The remote control light receiving unit according to 2.

  In the invention of claim 4, the light receiver can be fixed on the guide plate by sandwiching the guide plate from both sides with two pressing plates attached to the support portion of the light receiver. For this reason, the light receiving direction can be kept constant unless a force is applied to the light receiver to move it.

  A fifth aspect of the present invention is the remote control light receiving unit according to any one of the first to fourth aspects, wherein the outer diameter of one end side of the support portion of the light receiver is formed larger than the opening portion of the support plate.

  In the invention of claim 5, since the outer diameter of the one end side of the support portion of the light receiver is larger than the diameter of the opening portion of the support plate, it is possible to prevent the light receiver from coming out of the opening portion of the support plate. For this reason, the light receiving direction of the light receiver can be changed to a desired direction.

  The invention of claim 6 is an electronic apparatus comprising the remote control light receiving unit according to any one of claims 1 to 5.

  According to the sixth aspect of the present invention, the electronic device can reliably receive the light transmitted from the remote control transmitter by directing the light receiver toward the remote control transmitter in advance.

  According to the present invention, the light receiving direction of the remote control light receiving unit can be set by a simple mechanism of fixing the light receiver using the opening serving as the pivot point formed on the support plate and the guide groove formed on the guide plate. Can be changed.

  The above object, other objects, features and advantages of the present invention will become more apparent from the following detailed description of embodiments with reference to the drawings.

  Referring to FIG. 1, remote control light receiving unit 10 of this embodiment includes a support plate 24. The support plate 24 is fixed to the case 30 so as to face the bottom surface 28 at a predetermined distance from the bottom surface 28 of the cylindrical case 30. A circular opening 26 is provided at the center of the support plate 24, and one end of the light receiver 12 is inserted through the opening 26. For this reason, the light receiver 12 is rotatably supported by the opening 26.

  The guide plate 20 is fixed to the case 30 so as to face the support plate 24 at a position separated from the support plate 24 by a predetermined distance. The guide plate 20 is curved with a constant curvature so that the distance from the opening 26 of the support plate 24 to an arbitrary position on the guide plate 20 is constant.

  The guide plate 20 has a first guide groove 22a extending from the center to both sides, and a second guide that intersects the first guide groove 22a at a right angle at the center and extends in a direction different from the direction in which the first guide groove 22a extends. A groove 22b is formed. The other end side of the light receiver 12 is stopped in a state of being held in the first guide groove 22a or the second guide groove 22b, that is, in a displaceable state when a force is applied. A light receiving unit 14 that receives infrared light from a remote control transmitter (not shown) is attached to the front end surface of the light receiver 12 via a mounting base 32. Even if the support portion 16 of the light receiver 20 is displaced in the guide grooves 22a and 22b, the mounting base 32 and the light receiving portion 14 are always located on the surface of the guide plate 20.

  The lengths of the guide grooves 22a and 22b are determined by the angle at which the incident light is incident on the front surface of the remote control light receiving unit 10. That is, the direction connecting the respective end portions in the length direction of the first guide groove 22 a or the second guide groove 22 b and the opening portion 26 of the support plate 24 forms the normal direction in the center portion of the guide plate 20. The lengths of the first guide groove 22a and the second guide groove 22b are determined so that the angle becomes a desired angle. This angle is preferably about 45 degrees in consideration of attaching the remote control light receiving unit 10 to an electronic device such as a television receiver or an air conditioner.

  The configuration of the light receiver 12 will be described with reference to FIG. The light receiver 12 includes a light receiving unit 14 and a support unit 16. The support portion 12 has an elongated rod shape with a circular cross section. A stopper 18 having an outer diameter larger than the diameter of the opening 26 provided in the support plate 24 is attached to one end side of the support portion 16. For this reason, the support portion 16 does not come out of the opening portion 26 of the support plate 24.

  A mounting base 32 is also formed on the other end side of the support portion 16 so that the light receiving portion 14 can be easily attached. The support portion 16 sandwiched between the stopper 18 and the mounting base 32 is rotatably supported by the opening portion 26 of the support plate 24 in the vicinity of the stopper 18 and is displaced in the guide grooves 22a and 22b in the vicinity of the mounting base 32. It has a uniform thickness.

  The light receiving unit 14 is fixed to the support unit 16 via a mounting base 32 having the same size as the light receiving unit 14. A light receiving element (not shown) that receives infrared light from the remote control transmitter is fixed inside the light receiving unit 14. The light receiving element converts received light into an electric signal, and the converted electric signal is connected to a television receiver in which the remote control light receiving unit 10 is mounted via a wiring inside a through hole formed in the support portion 16; Give to electronic devices such as air conditioners.

  With reference to FIG. 3, the shape of the 1st guide groove 22a and the 2nd guide groove 22b at the time of seeing the remote control light-receiving unit 10 from the upper surface is demonstrated. The first guide groove 22a and the second guide groove 22b are orthogonal to each other at the center of the guide plate 20. Each guide groove 22a, 22b has a wide groove width portion (holding portion) 34a and a narrow groove width portion (separation). Part) 34b are alternately formed. The separation portion 34b is wide enough to allow the support portion 16 to pass through the guide grooves 22a and 22b while receiving strong resistance due to friction when the light-receiving portion 14 is picked with a finger and pushed along the guide grooves 22a and 22b. . The holding part 34 a has a circular shape larger than the outer diameter of the support part 16. When no force is applied to the light receiving unit 14 from the outside, the support unit 16 is held so as not to move by the holding unit 34a. For this reason, the light receiving unit 14 is also stopped on the guide plate 20 until a force is applied from the outside.

  In the case shown in FIG. 3, the holding portion 34 a includes the intersection between the first guide groove 22 a and the second guide groove 22 b, the respective end portions of the first guide groove 22 a and the second guide groove 22 b, and the intersection portion and each end. It is formed in a total of nine places in the middle part with the part. A separation portion 34b is provided between the holding portion 34a and the holding portion 34a. Further, the light receiving portion 14 is located at the intersection of the first guide groove 22a and the second guide groove 22b.

  In this embodiment, the case where the two guide grooves 22a and 22b are formed to be orthogonal to each other has been described. However, there may be only one guide groove or three or more guide grooves. Moreover, when there are two or more guide grooves, they need only intersect at a predetermined angle even if they are not orthogonal to each other.

  When changing the light receiving direction of the remote control light receiving unit 10 as described above, if the light receiving portion 14 is picked with a finger and a force is applied along the guide grooves 22a and 22b, the support portion 16 is currently held in the guide grooves 22a and 22b. The holding part 34a is displaced from the holding part 34a to the adjacent holding part 34a through the adjacent separation part 34b. When further force is applied to the light receiving unit 14, the support unit 16 is further displaced and is further held by the adjacent holding unit 34a. In this way, the light receiving unit 14 can be moved to a position on the guide plate 20 where the arbitrary holding unit 34a is located.

  Since the first guide groove 22a and the second guide groove 22b intersect at the center of the guide plate 20, the light receiver is displaced from the first guide groove 22a to the second guide groove 22b. The second guide groove 22b can be displaced to the first guide groove 22a.

  Further, since the guide plate 20 is curved with a certain curvature, even if the light receiving unit 14 moves to an arbitrary position on the guide plate 20, the light receiving direction is the normal direction of the guide plate 20 at that position. Facing. Therefore, even when infrared light from the remote control transmitter is incident on the remote control light receiving unit 10 from an oblique direction, the remote control transmission is performed by moving the light receiving unit 14 along the guide grooves 22a and 22b. The light from the machine can be easily received. The stopper 18 of the support unit 16 moves in a space sandwiched between the bottom surface 28 of the case 30 and the support plate 24 according to the movement of the light receiving unit 14.

  A state when the light receiver 14 is at the end of the second guide groove 22b will be described with reference to a cross-sectional view of the remote control light receiving unit 10 in FIG. One end side of the support portion 16 is inserted into the opening portion 26 of the support plate 24, and the support portion 16 in the vicinity of the stopper 18 is rotatably supported by the opening portion 26. At this time, the stopper 18 is fitted into one end side of the support portion 16, and the outer diameter of the stopper 18 is larger than the diameter of the opening 26. For this reason, the support part 16 does not come out of the opening part 26.

  Further, since the support portion 16 is held by the holding portions 34a of the guide grooves 22a and 22b, the light receiving portion 14 is stopped on the guide plate 20 until a force is applied from the outside. At this time, the light receiving portion 14 faces the normal direction of the guide plate 20 at that position.

  Next, a method for assembling the remote control light receiving unit 10 will be described. A stopper 18 is fitted to one end side of the support portion 16 of the light receiver 12. For this reason, when assembling the remote control light receiving unit 10, the stopper 18 is removed, and the support portion 16 to which the light receiving portion 14 is attached via the mounting base 32 is held by the guide grooves 22 a and 22 b from the surface side of the guide plate 20. The portion 34 a and the opening 26 of the support plate 24 are inserted. Thereafter, the stopper 18 is fitted into one end side of the support portion 16. This fitting is performed by, for example, providing the support portion 16 and the stopper 18 with a male screw and a female screw that can be screwed together, and screwing the male screw and the female screw together.

  Next, another remote control light receiving unit 10 of this embodiment will be described. The configuration of the remote control light receiving unit 10 of this embodiment is substantially the same as that of the remote control light receiving unit 10 of FIG. 1, as shown in FIG. For this reason, in each part of the remote control light receiving unit 10 in FIG. 5, the same or corresponding parts as those in the remote control light receiving unit 10 in FIG.

  In the remote control light receiving unit 10 of FIG. 5, two pressing plates 36 a and 36 b that sandwich the guide plate 20 from both sides are provided on the light receiver 12 at a predetermined interval. The point that the light guide 14 is stopped on the guide plate 20 by sandwiching the guide plate 20 from both sides with the two pressing plates 36a and 36b is different from the remote control light receiving unit 10 of FIG. Therefore, unlike the guide grooves 22a and 22b in FIG. 1, it is not necessary to provide the holding portion 34a and the separation portion 34b, so the first guide groove 22a and the second guide groove 22b have a constant groove width.

  Next, the configuration of the light receiver 12 of this embodiment will be described with reference to FIG. The light receiver 12 has the same configuration as that of the light receiver 12 shown in FIG. 2 except that the light receiver 12 has two pressing plates 36a and 36b. For this reason, the same or corresponding parts are denoted by the same reference numerals as the corresponding parts of the light receiver 12 of FIG. 2, and the description thereof is omitted.

  Two circular pressing plates 36 a and 36 b are opposed to the support portion 16 in the vicinity of the light receiving portion 14 by being separated by the thickness of the guide plate 20. Here, the size of the pressing plates 36a and 36b only needs to be larger than the groove width of the guide groove, and the shape is not limited to a circle. The two pressing plates 36 a and 36 b are both curved with the same curvature as the guide plate 20. For this reason, by sandwiching the guide plate 20 between the pressing plates 36a and 36b, the light receiving unit 14 is stopped on the guide plate 20 in a state of moving when a force is applied from the outside. When the light receiving unit 14 is picked with a finger and a force is applied along the guide grooves 22a and 22b, the light receiving unit 14 is subjected to frictional resistance between the pressing plates 36a and 36b and the guide plate 20 while on the surface of the guide plate 20. Move in the direction in which the force is applied.

  With reference to FIG. 7, the shape of the guide grooves 22a and 22b when the remote control light receiving unit 10 of this embodiment is viewed from above will be described. The guide grooves 22a and 22b are the same as the guide grooves 22a and 22b shown in FIG. 3 except that they have a constant groove width. For this reason, the same or corresponding parts are denoted by the same reference numerals as the corresponding parts in FIG. 3, and the description thereof is omitted.

  Since the guide plate 20 is sandwiched from both sides by the two pressing plates 36a and 36b provided on the support portion 16 of the light receiver 12, unlike the remote control light receiving unit 10 of FIG. 1, the support portion 16 of the light receiver 12 is placed in the guide groove 22a. , 22b can be held at any position. The groove widths of the guide grooves 22a and 22b may be such that the support portion 16 can be displaced by lightly receiving the frictional resistance from the guide grooves 22a and 22b. In this case, the light receiving portion 14 and the pressing plate 36 a are projected on the surface of the guide plate 20.

  A state where the light receiver 12 is at the end of the second guide groove 22b will be described with reference to a cross-sectional view of the remote control light receiving unit 10 shown in FIG. Parts that are the same as or correspond to those of the remote control light receiving unit 10 shown in FIG. 4 are assigned the same reference numerals as the corresponding parts in FIG.

  4 is different from the case of FIG. 4 in that the guide plate 20 is sandwiched from both sides by two pressing plates 36a and 36b provided on the support portion 16 of the light receiver 12, and the light receiving portion 14 is stopped on the guide plate 20. It is a point. At this time, the light receiving unit 14 faces the normal direction of the guide plate 20 at that position.

  Next, a method for assembling the remote control light receiving unit 10 will be described. With the stopper 18, the pressing plate 36 a and the light receiver 14 of the light receiver 12 removed from the support portion 16, one end side of the support portion 16 is inserted into the opening portion 26 of the support plate 24. Then, the stopper 18 is fitted again so that the support 16 does not come out of the opening 26. Next, after inserting the support portion 16 in a state where only the pressing plate 36 b is attached into the guide grooves 22 a and 22 b from the inside of the guide plate 20, the pressing plate 36 a and the light receiving portion 14 are attached to the support portion 16. This attachment is performed by, for example, providing the stopper 18 and the support portion 16 and the support portion 16 and the pressing plate 36a with a male screw and a female screw that can be screwed together, and screwing the male screw and the female screw together.

1 is an overall view showing an embodiment of the present invention. It is an illustration figure which shows a part of FIG. 1 Example. It is an illustration figure which shows the other part of FIG. 1 Example. It is an illustration figure which shows the stop state of FIG. 1 Example. It is a general view which shows the other Example of this invention. 5 is an illustrative view showing a part of the embodiment. FIG. 6 is an illustrative view showing another portion of the embodiment in FIG. 5; FIG. 6 is an illustrative view showing a stopped state of the embodiment in FIG. 5;

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Remote control light-receiving unit 12 ... Light receiver 14 ... Light-receiving part 16 ... Support part 18 ... Stopper 20 ... Guide plate 22a, 22b ... Guide groove 24 ... Support plate 26 ... Opening part 36a, 36b ... Pressing plate

Claims (6)

A remote control light receiving unit for receiving light from a remote control transmitter,
A support plate having an opening serving as a pivot,
A guide plate formed at a predetermined interval from the support plate,
A guide groove formed on the guide plate; and one end side rotatably supported by the opening and the other end side attached to the other end side of the support portion and a support portion displaceable in the guide groove A remote control light receiving unit comprising a light receiver including a light receiving unit that receives light from the remote control light receiver.   The remote control light receiving unit according to claim 1, wherein the guide plate is curved with a constant curvature and the support portion of the light receiver has a constant length.   3. The remote control light receiving unit according to claim 1, wherein the guide groove includes a plurality of holding portions that hold a support portion of the light receiver and a separation portion that separates the plurality of holding portions from each other.   3. The remote control light receiving device according to claim 1, wherein two pressing plates larger than a width of the guide groove are formed on the support portion of the light receiver so as to face each other with an interval corresponding to the thickness of the guide plate. unit.   5. The remote control light receiving unit according to claim 1, wherein an outer diameter of one end side of the support portion of the light receiver is formed larger than an opening portion of the support plate.   An electronic apparatus comprising the remote control light receiving unit according to claim 1.

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