JP2014171091A - Foldable reflector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electromagnetic wave transmitted by an electronic apparatus with directivity by using a portable device and by concentrating electromagnetic waves propagated from one direction on the electronic apparatus without violating the Radio Law.SOLUTION: A foldable reflector 10 is equipped with a bottom surface plate 20 on which a mobile phone 40 is installed and a side surface plate 30 which is in an assembled truncated polygonal pyramid shape and foldable. The side surface plate 30 concentrates an electromagnetic wave propagated from one direction on the mobile phone 40 by reflecting the electromagnetic wave transmitted and received by the mobile phone 40 and thus provides the electromagnetic wave the mobile phone 40 transmits with directivity. The shape in which the foldable reflector 10 is assembled is determined by a paraboloid of revolution which has a focus on the bottom surface plate 20.

Description

  The present invention relates to a folding reflector.

  Electronic devices that communicate via electromagnetic waves typified by mobile phones generally have a small antenna. When trying to communicate using such an electronic device, the communication / call quality at the time of reception deteriorates in a place where the electromagnetic wave is far from the base station etc. Problems such as accelerated battery consumption of electronic devices arise. Further, since the transmission output of the electronic device is much smaller than the transmission output of a base station or the like, the same problem occurs at the time of transmission in such a place. In order to solve this problem, amplifying the electromagnetic waves transmitted and received by the electronic device by replacing the antenna built in the electronic device or electrically connecting the electronic device and an external antenna It is regulated by law.

  One method for improving the communication / call quality of electronic devices without conflicting with the Radio Law is to reflect electromagnetic waves used by electronic devices for communication by external devices that are not electrically connected to the electronic devices. . Further, in preparation for using a portable electronic device in a place where radio wave conditions are poor, such a device must also be suitable for carrying. Patent Document 1 describes a transmission / reception gain improving apparatus that improves the communication / call quality of a mobile phone placed on a mounting table without conflicting with the Radio Law by reflecting radio waves with a notebook-sized corner reflector. . The corner reflector can be opened and closed in a notebook shape, and the mounting table fits into the storage groove when the corner reflector is closed.

  Further, as an antenna that is portable by folding and has directivity, the shaft rod described in Patent Document 2, and an aggregate that is supported by the shaft rod and bent at a parabolic curvature, There is an umbrella-shaped portable parabolic antenna provided with a flexible radio wave reflecting film body attached to an aggregate.

JP 07-263949 A Japanese Utility Model Publication No. 04-11015

  In order to improve the communication and call quality of electronic devices by reflecting the electromagnetic waves, the electromagnetic waves propagating from the base station, etc. are efficiently concentrated on the electronic device, and the electromagnetic waves transmitted from the electronic device are efficiently directed toward the base station, etc. Must be propagated. That is, directivity in one direction is important. However, since the reflector provided in the device described in Patent Document 1 is in the shape of a corner reflector, the electromagnetic wave propagating from one direction cannot be concentrated on the electronic device, and the electromagnetic wave transmitted from the electronic device has directivity in one direction. Cannot be granted. Further, the device described in Patent Document 2 cannot place an electronic device at the focal point, and electrically connecting the device itself and the electronic device violates the Radio Law.

  The present invention has been made in view of the above-described circumstances, and concentrates electromagnetic waves propagating from one direction on an electronic device without conflicting with the Radio Law, and directs the electromagnetic waves transmitted from the electronic device in one direction. It is an object to provide a portable folding reflector that can be applied.

  The foldable reflector according to the present invention includes a polygonal bottom plate on which an electronic device that communicates via electromagnetic waves can be placed, a polygonal frustum shape that can be assembled and foldable, and is assembled into a polygonal frustum shape. And a side plate that constitutes an electromagnetic wave reflecting surface that is disposed upright from the bottom plate and reflects an electromagnetic wave that is used for communication by the electronic device arranged on the bottom plate.

  According to the present invention, electromagnetic waves propagating from one direction can be concentrated on an electronic device without conflicting with the Radio Law, and directivity in one direction can be imparted to the electromagnetic waves transmitted from the electronic device.

It is the (a) top view and (b) side view in the assembled state of the folding reflector which concerns on embodiment of this invention. It is a figure which shows the state by which the folding-type reflector was expand | deployed. It is a perspective view in the state where the folding reflector was assembled. It is a perspective view in the state where the folding reflector was folded. It is a figure of the parabola in connection with the shape of a foldable reflector.

  Hereinafter, a folding reflector 10 according to an embodiment of the present invention will be described with reference to FIGS.

  The folding reflector 10 includes a bottom plate 20 and a side plate 30. The folding reflector 10 can take three states: an assembled state (FIGS. 1 and 3), an unfolded state (FIG. 2), and a folded state (FIG. 4).

  As shown in FIG. 2, the bottom plate 20 is formed of a regular hexagonal plate-like member, and one side of the bottom plate 20 is foldably connected to the side plate 30. As shown in FIG. 1, in a state where the folding reflector 10 is assembled, the bottom plate 20 becomes one bottom surface of a regular ten hexagonal truncated pyramid. In the state where the foldable reflector 10 is assembled, the mobile phone 40 can be disposed on the bottom plate 20. In addition, a holding mechanism 21 for holding the mobile phone 40 may be provided.

  As shown in FIG. 2, the side plate 30 is formed of 16 trapezoidal members 31 having the same shape. The trapezoidal member 31 is formed from a trapezoidal plate-shaped member. The upper base of the trapezoidal member 31 is in contact with the bottom plate 20 in a state where the folding reflector 10 is assembled, and is substantially equal to the length of one side of the bottom plate 20. The lower base of the trapezoidal member 31 is longer than the upper base, and forms the edge of the opening when the folding reflector 10 is assembled. The side plate 30 is formed by connecting the sides, which are trapezoidal legs, of the trapezoidal member 31 so as to be foldable with each other, one of which is replaced by an attaching / detaching portion 32. With this configuration, the side plate 30 has a substantially fan shape as a whole when the folding reflector 10 is deployed. The above-described foldable connection between one side of the bottom plate 20 and the side plate 30 is made at a portion corresponding to an arc inside the fan of the side plate 30.

  As shown in FIG. 4, in a state where the foldable reflector 10 is folded, the trapezoidal members 31 are folded together, and the side plate 30 is folded in a bellows shape. As shown in FIG. 1, in a state where the folding reflector 10 is assembled, the side plate 30 has a cylindrical shape, is erected from the bottom plate 20, and has an opening on the other bottom surface opposite to the bottom plate 20. It has a regular dodecagonal truncated pyramid shape. The area of the opening is larger than the area of the bottom plate 20. In this state, as shown in FIG. 3, the side plate 30 has a bottom plate so that radio waves propagating from one direction are concentrated on the mobile phone 40 and radio waves transmitted from the mobile phone 40 exhibit directivity in one direction. 20 are arranged. Details will be described later.

  The detachable portion 32 is formed of a material that can be repeatedly attached and detached. Examples of the material that can be repeatedly attached and detached include a hook-and-loop fastener (magic tape (registered trademark)), a magnet, a fastener, and the like. In the state in which the folding reflector 10 is assembled, the detachable portions 32 are joined to each other.

  A specific shape of the folding reflector 10 in the assembled state will be described. The shape of the foldable reflector 10 is based on a rotating paraboloid. In the following, the cut surface when the folding reflector 10 is cut along a plane that includes the straight line A of FIG. 1A and is perpendicular to the paper surface, and the paraboloid of revolution as shown in FIG. 5 are cut along the same plane. A description will be given based on a parabola L which is a cross-section and the coordinates of the focus F are (0, f).

  The bottom plate 20 has a center of gravity coincident with the focal point F of the parabola L and is positioned parallel to the quasi-line. The outer edge portion of the bottom plate 20 is in contact with the parabola L. The value of f is determined so that the bottom plate 20 is large enough to accommodate the mobile phone 40. For example, when the bottom plate 20 has a diameter of 80 mm, f is 20 mm.

  Side plate 30 is in contact with bottom plate 20 at the intersection of bottom plate 20 and parabola L. The height of the side plate 30 is suitable for folding and carrying, and the radio waves propagating from one direction are concentrated on the mobile phone 40, and the radio waves transmitted from the mobile phone 40 are given directivity in one direction. Any height that is sufficient to.

  The value of the angle θ formed by the bottom plate 20 and the side plate 30 shown in FIG. 1B is based on the parabola L. As an example, the value of θ is a value such that the outer edge portion of the side plate 30 is in contact with the parabola L. As another example, the value of θ is such that the inclination of the tangent of the parabola with the intersection of the bottom plate 20 and the parabola L (ie, the intersection of the bottom plate 20 and the side plate 30) as the contact is equal to 180 ° −θ. It becomes a value like this. The value of θ is not limited to these, and may be any value between the above two values, for example. As a matter of course, since the area of the opening is larger than the area of the bottom plate 20, θ becomes an obtuse angle.

  As described above, since the shape of the folding reflector 10 is based on the paraboloid of revolution, the folding reflector 10 has directivity that is a characteristic of the parabolic antenna. Therefore, if the folding reflector 10 is used, it is possible to concentrate the radio wave propagating from a specific direction on the focal point and to impart directivity to the radio wave radiated from the focal point in one direction. And by arrange | positioning the mobile telephone 40 in the position which becomes a focus, the improvement of the electromagnetic wave condition in communication using the mobile telephone 40 is attained.

  A method of performing communication with the mobile phone 40 using the folding reflector 10 will be described.

  When communication is not performed using the foldable reflector 10, as shown in FIG. 4, it is carried in a folded state. At this time, the side plate 30 is folded in a bellows shape, and the detachable portion 32 is opened.

  When communication is performed using the foldable reflector 10, the foldable reflector 10 is assembled into the shape shown in FIGS. First, as shown in FIG. 2, the side plate 30 folded in a bellows shape is developed. Next, the side plate 30 is bent so that the side plate 30 is erected from the bottom plate 20, the detachable portions 32 are joined together, and the side plate 30 is assembled into a regular hexagonal frustum shape.

  Next, communication is performed using the assembled folding reflector 10. First, the mobile phone 40 is placed on the bottom plate 20. Next, the folding reflector 10 is directed in various directions to search for a direction in which the radio wave condition is most improved. When the optimum direction is found, the foldable reflector 10 is fixed in that direction, and communication is performed. Since the folding reflector 10 has directivity, good communication using the mobile phone 40 can be realized by fixing the folding reflector 10 in an appropriate direction.

  When making a call using the folding reflector 10, it is desirable to use an earphone microphone. When data communication such as transmission / reception of e-mail or browsing of the Internet is performed, the folding reflector 10 is fixed and predetermined data communication is completed, and then the mobile phone 40 is taken out and operated.

  By using the foldable reflector 10 as described above, the incident radio waves are sufficiently concentrated even in areas where the radio wave condition is bad, even in the area of mobile communication services such as mountainous areas and the sea, Moreover, it becomes possible to give sufficient directivity to the radiated radio wave, and good communication by the mobile phone 40 can be realized. In other words, even in such a region, it is possible to temporarily make a call, send and receive e-mails, browse the Internet, and the like by an easy method. The foldable reflector 10 is not electrically connected to the mobile phone 40 and does not amplify electromagnetic waves, so that it does not conflict with the Radio Law. Further, since the foldable reflector 10 is foldable, it is easy to carry and can be prepared for the deterioration of the radio wave condition without taking time and cost.

  The foldable connection between the bottom plate 20 and the side plate 30 and the foldable connection between the trapezoidal members 31 can be made by any method as long as it can be folded. This foldable connection includes, for example, a connection via a hinge and a connection via a flexible material such as rubber.

  Further, the side where the bottom plate 20 and the side plate 30 are not connected as shown in FIG. 2 may be provided with a detachable connection mechanism. This connection mechanism can be formed by a material that can be repeatedly attached and detached to form the attaching and detaching portion 32 described above.

  The bottom plate 20 and the side plate 30 may be formed of a material that reflects radio waves, for example, a metal plate such as an aluminum plate. Alternatively, the bottom plate 20 and the side plate 30 are formed of a strong and lightweight material suitable for carrying, such as a resin, and at least the inner surface thereof is a material that reflects radio waves, such as a metal foil such as an aluminum foil. It may be covered.

  As mentioned above, although embodiment of this invention was described, this invention is not limited to said embodiment, A various deformation | transformation and application are possible.

  For example, the above-described bottom plate 20 has a regular hexagonal shape, and the side plate 30 includes 16 trapezoidal members 31, but is not limited thereto. That is, the bottom plate 20 may be another regular polygon. Alternatively, the bottom plate 20 may be an arbitrary polygon that is not a regular polygon. At this time, as a modification with an extremely large number of sides, an ellipse is included in the polygon. Furthermore, the number of sides of the bottom plate 20 and the number of trapezoidal members 31 do not have to match. Similarly, the trapezoidal member 31 may be any polygon that is not trapezoidal.

  Further, the bottom plate 20 is arranged on the plane including the focal point F in which the center of gravity coincides with the focal point F of the parabola L, but is not limited thereto. That is, in consideration of the thickness of the mobile phone 40 and the inclination of the side plate 30 with respect to the bottom plate 20, the mobile phone 40 may be arranged on a plane that does not include the focal point. Since the folding reflector 10 is not a strict rotating paraboloid, even if the bottom plate 20 is arranged on a plane including the focal point F as in the present embodiment, a sufficient effect can be obtained.

  In FIG. 2, the trapezoidal member 31 foldably connected to one side of the bottom plate 20 also includes the detachable portion 32, but is not limited thereto. That is, a trapezoidal member 31 other than the trapezoidal member 31 foldably connected to one side of the bottom plate 20 may include the detachable portion 32.

  In addition, although one set of the trapezoidal members 31 is provided with the attaching / detaching portion 32, it is not limited thereto. That is, two or more sets of attaching / detaching portions 32 may be provided. At this time, the set of trapezoidal members 31 separated by the attaching / detaching portion is foldably connected to one side of the bottom plate 20.

  Further, the side plate 30 is developed in a substantially fan shape, but is not limited thereto. That is, the side plate 30 may be developed radially about the bottom plate 20. At this time, all the trapezoidal members 31 are provided with detachable portions 32 on both sides which are trapezoidal legs, and are connected to the sides of the bottom plate 20 in a foldable manner.

  Further, the bottom plate 20 is connected to the side plate 30 in a foldable manner, but is not limited thereto. That is, instead of a foldable connection, a detachable connection may be provided. It should be noted that it is more convenient to carry around if at least one side is foldably connected to the side plate 30 because it can be folded together without being separated.

  Moreover, although the electronic device arrange | positioned and used for the foldable reflector 10 was the mobile phone 40, it is not restricted to this. That is, any other electronic device may be used as long as it is a portable device that performs communication using electromagnetic waves.

  Various embodiments and modifications can be made to the present invention without departing from the broad spirit and scope of the present invention. Further, the above-described embodiment is for explaining the present invention, and does not limit the scope of the present invention. In other words, the scope of the present invention is indicated by the scope of claims, not the embodiment described above. Various modifications within the scope of the claims and within the scope of the equivalent invention are considered to be within the scope of the present invention.

  A part or all of the above embodiments can be described as in the following supplementary notes, but is not limited thereto.

(Appendix 1)
A polygonal bottom plate on which electronic devices that communicate via electromagnetic waves can be placed;
An electromagnetic wave that is assembled in a polygonal frustum shape and is foldable, is assembled in a polygonal frustum shape, is erected from the bottom plate, and is used for communication by the electronic device arranged on the bottom plate. A side plate constituting an electromagnetic wave reflecting surface to be reflected;
A foldable reflector.

(Appendix 2)
The angle formed by the bottom plate and the assembled side plate is an obtuse angle, and the opening of the polygonal frustum formed by the assembled side plate is larger than the bottom plate.
The foldable reflector as set forth in appendix 1, wherein:

(Appendix 3)
The side plate includes a plurality of plate-like members each connected in a foldable manner,
At least one of the plate-like members is foldably connected to the bottom plate.
The foldable reflector according to appendix 1 or 2, characterized in that:

(Appendix 4)
The side plate is folded in a bellows shape by folding the plate member, and is assembled into a polygonal frustum shape by connecting the plate members in an annular shape.
The foldable reflector as set forth in Appendix 3, wherein

(Appendix 5)
The bottom plate is a regular hexagon;
The side plate includes 16 plate-like members.
The foldable reflector according to appendix 3 or 4, characterized in that:

(Appendix 6)
The bottom plate contacts the paraboloid of revolution;
The inclination of the side plate with respect to the bottom plate is based on the paraboloid of revolution,
The axis of symmetry of the paraboloid of revolution coincides with a straight line passing through the center of gravity of the bottom plate and perpendicular to the bottom plate, and the focal point of the paraboloid of revolution is on the bottom plate.
The foldable reflector according to any one of appendices 1 to 5, characterized in that:

(Appendix 7)
The bottom plate and the side plate are formed of a material that reflects electromagnetic waves,
The foldable reflector according to any one of appendices 1 to 6, characterized in that:

(Appendix 8)
The bottom plate and the side plate are covered with a reflective film that reflects electromagnetic waves at least on the inner surface thereof,
The foldable reflector according to any one of appendices 1 to 6, characterized in that:

(Appendix 9)
The bottom plate includes a holding mechanism for holding the electronic device.
The foldable reflector according to any one of appendices 1 to 8, wherein

DESCRIPTION OF SYMBOLS 10 Folding reflector 20 Bottom plate 21 Holding mechanism 30 Side plate 31 Trapezoid member 32 Detachable part 40 Mobile phone

Claims (9)

A polygonal bottom plate on which electronic devices that communicate via electromagnetic waves can be placed;
An electromagnetic wave that is assembled in a polygonal frustum shape and is foldable, is assembled in a polygonal frustum shape, is erected from the bottom plate, and is used for communication by the electronic device arranged on the bottom plate. A side plate constituting an electromagnetic wave reflecting surface to be reflected;
A foldable reflector. The angle formed by the bottom plate and the assembled side plate is an obtuse angle, and the opening of the polygonal frustum formed by the assembled side plate is larger than the bottom plate.
The folding reflector according to claim 1. The side plate includes a plurality of plate-like members each connected in a foldable manner,
At least one of the plate-like members is foldably connected to the bottom plate.
The folding reflector according to claim 1 or 2, wherein the folding reflector is provided. The side plate is folded in a bellows shape by folding the plate member, and is assembled into a polygonal frustum shape by connecting the plate members in an annular shape.
The folding reflector according to claim 3. The bottom plate is a regular hexagon;
The side plate includes 16 plate-like members.
The folding reflector according to claim 3 or 4, characterized in that The bottom plate contacts the paraboloid of revolution;
The inclination of the side plate with respect to the bottom plate is based on the paraboloid of revolution,
The axis of symmetry of the paraboloid of revolution coincides with a straight line passing through the center of gravity of the bottom plate and perpendicular to the bottom plate, and the focal point of the paraboloid of revolution is on the bottom plate.
The folding reflector according to any one of claims 1 to 5, wherein the folding reflector is provided. The bottom plate and the side plate are formed of a material that reflects electromagnetic waves,
The foldable reflector according to any one of claims 1 to 6, wherein the foldable reflector is provided. The bottom plate and the side plate are covered with a reflective film that reflects electromagnetic waves at least on the inner surface thereof,
The foldable reflector according to any one of claims 1 to 6, wherein the foldable reflector is provided. The bottom plate includes a holding mechanism for holding the electronic device.
The folding reflector according to any one of claims 1 to 8, characterized in that

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