JP2007300525A - Antenna for portable electronic device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a tilting mechanism and a rolling mechanism which are small-sized and excellent in durability by which a flexible element is tilted and rolled in a horizontal plane. <P>SOLUTION: A plate-like part 8d of a tilting base part 8 of an element part is pivotally supported to be tilted by a pivot 18 to a holding part 7 at an upper part of a base part 4. In the base part 4, a pressing part 13 which presses a peripheral side of the plate-like part 8d is stored so as to be energized by a coil spring 14. When the element part is extended and tilted, a pressed surface of the upper surface of the pressing part 13 is pushed down against energizing force of the coil spring 14 by the peripheral side of the plate-like part 8d and when the element part is further tilted, a flat side on the peripheral side of the plate-like part 8d contacts the pressed surface and thus, a feeling of click is obtained. Moreover, the element part can be tilted to about ±90°. In addition, when the element part is restored to an erected state, a flat lower surface on the peripheral side of the plate-like part 8d contacts the pressed surface and thus, the feeling of click is obtained. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an antenna for a portable electronic device provided in a portable electronic device such as a cellular phone capable of receiving at least an electronic device having a receiving function, particularly a terrestrial digital television broadcast.

  Although mobile phones are widespread, this mobile phone is equipped with an antenna for transmitting and receiving calls and information. In general, this antenna is a retractable antenna that can be stored in the casing of a mobile phone so that it can be easily carried when it is on standby. An example of the configuration of such an antenna for a mobile phone is shown in FIG. An antenna 100 illustrated in FIG. 38 includes a flexible element 101, and a top portion 103 is provided at the tip of the element 101. The element 101 is slidably held with respect to the holder portion 102. When the holder portion 102 is attached to the casing of the mobile phone, the element 101 can be accommodated in the casing by sliding the element 101 downward with respect to the holder portion 102. In this state, the element 101 can be brought into an extended state by grasping the top portion 103 and pulling out the element 101 from the holder portion 102. Note that since the element 101 has flexibility and bends so that it can be restored as shown in the figure, the element 101 can be prevented from being broken even if it hits an obstacle.

  By the way, in recent years, terrestrial digital television broadcasting has been started, and mobile phones capable of receiving terrestrial digital television broadcasting are also known. In order to efficiently receive terrestrial digital television broadcasting, it is necessary to match the directivity characteristics of the antenna with the direction of arrival of the radio waves. For this reason, an antenna that can adjust the directivity characteristics of the antenna so as to be tiltable and rotatable with respect to the housing is suitable for an antenna that receives terrestrial digital television broadcasting.

  As a conventional tiltable and rotatable antenna, an antenna using a multistage telescopic antenna (rod antenna) often used for so-called radio cassettes is known. An example of the configuration of such an antenna is shown in FIG. The antenna 200 shown in FIG. 39 includes a telescopic element 201 having a multistage structure, and the telescopic element 201 can be tilted with respect to the antenna mounting portion 202 and can be rotated with respect to the antenna mounting portion 202. It is fixed. Therefore, the antenna 200 is attached to the housing of a portable electronic device (not shown) so that the antenna 200 can be tilted and rotated with respect to the housing. In the expansion / contraction element 201, each of the multi-stage elements for realizing expansion / contraction has a pipe structure. For this reason, since the outer diameter of the final stage in the expansion / contraction element 201 is increased, a diameter of 5 mm to 8 mm is required as a diameter of a mechanical component that creates a tilting mechanism and a rotation mechanism.

  Here, the tilting mechanism of the antenna 200 is shown in FIG. As shown in FIG. 40, a flat element base 201a is formed to protrude from the lower end of the expandable element 201. The element base 201 a is sandwiched between the upper portions of the rotation holding portion 203, and the element base 201 a is rotatably fixed to the rotation holding portion 203 with fixing screws 204. As a result, the expansion / contraction element 201 is attached to the rotation holding portion 203 so as to be tiltable. Next, the rotation mechanism in the antenna 200 will be described. The rotation holding portion 203 has a circular cross section, and the rotation holding portion 203 has a circular insertion fitting hole formed in the antenna mounting portion 202 shown in FIG. It is elastically inserted in. For this reason, since the rotation holding part 203 can be rotated with respect to the antenna attaching part 202, the extensible element 201 is fixed to the antenna attaching part 202 in a rotatable manner.

41 and 42 show another configuration example of a conventional antenna that can be tilted and rotated. 41 is a perspective view showing a configuration of a conventional antenna 300, and FIG. 42 is a cross-sectional view showing the configuration.
In the antenna 300 shown in these drawings, the lower end of the element 301 having the top portion 304 at the tip is fixed to the spherical portion 302. More than half of the spherical portion 302 is slidably held in the holder portion 303 and is urged upward by a coil spring 305 housed in the lower portion of the holder portion 302. As a result, the spherical portion 302 is tiltably and rotatably held with respect to the holder portion 303 by the urging force of the coil spring 305. In this antenna 300, since the element 301 can maintain a predetermined angle by the frictional force between the spherical portion 302 and the holder portion 303, the spherical portion needs to have a diameter of 5 mm to 8 mm.
Japanese Utility Model Publication No. 63-26108 Japanese Utility Model Publication No. 60-103914

  A conventional antenna 100 for a mobile phone shown in FIG. 38 is a retractable antenna, and an element 101 is bent so as to be reversible so as to absorb an impact when it receives an impact during expansion. However, since the tilt mechanism that tilts and holds the element 101 at an arbitrary position and the rotation mechanism that rotates the tilted element 101 in a horizontal plane are not provided, the directivity characteristics of the antenna cannot be adjusted. was there.

  Also, the tilting mechanism in the conventional antenna 200 shown in FIG. 39 has a structure in which a flat element base 201 a is sandwiched between the upper portions of the rotation holding unit 203. In this case, the frictional force for holding the tilted expansion / contraction element 201 having a multistage structure depends on the area of the surface on which the flat element base 201a is held and the holding force of the rotation holding unit 203. In order to make the endurance when tilted more than tens of thousands of times, the diameter and width of the element base 201a and the rotation holder 203 need to be 5 mm to 8 mm. In this case, when the diameter and width of the element base part 201a and the rotation holding part 203 are about 2 mm, the durability of the number of tilts is about several hundreds of times. If the force is exceeded, the telescopic element 201 cannot be fixed or held at an arbitrary position.

Furthermore, the rotation mechanism in the antenna 200 is a mechanism that elastically inserts the rotation holding portion 203 into an insertion hole formed in the antenna attachment portion 202. For this reason, a diameter of 5 mm to 8 mm is required as the diameter of the rotation holding portion 203 and the antenna mounting portion 202. If the diameter of the rotation holding portion 203 and the antenna mounting portion 202 is about 2 mm, the rotation durability is extremely reduced. Rotation occurs due to the weight of the telescopic element 201 having a multistage structure.
Accordingly, the antenna 200 requires a diameter and width of 5 mm to 8 mm as the diameter and width of the mechanical parts that create the tilting mechanism and the rotation mechanism. Therefore, when the antenna 200 is attached to a portable electronic device such as a mobile phone, There is a problem that the antenna 200 cannot be applied to a portable electronic device because it is too large (too thick) compared to the size of the casing of the electronic device.

  Furthermore, in the antenna 300 shown in FIG. 41 and FIG. 42, the element 301 is tilted up to 90 ° with respect to the holder portion 303 because it will come out if it is not held by the holder portion 303 beyond half of the spherical portion 302. I can't do that. Further, since the spherical portion 302 and the holder portion 303 can tilt and rotate, the diameter of the spherical portion 302 needs to be 8 mm to 10 mm because of its durability. Therefore, when the antenna 300 is attached to a portable electronic device such as a cellular phone, the size of the casing of the portable electronic device is too large to be applied to the portable electronic device. It was.

  Accordingly, an object of the present invention is to provide a small-sized and highly durable tilting mechanism that can tilt a flexible element and rotate in a horizontal plane, and an antenna for a portable electronic device having a rotating mechanism. .

  In order to achieve the above object, an antenna for a portable electronic device according to the present invention has a base portion having a clamping portion that allows the tilting base portion having a plate-like portion to tilt the element portion fixed to the lower end, and is pivotally supported. The most important feature is that the elastic means for urging the peripheral side surface in which the flat surface is formed on at least a part of the plate-like portion is housed in the base portion.

  According to the present invention, the base portion has the clamping portion that enables the tilting base portion having the plate-like portion to be tilted to the lower end, and the flat surface is provided on at least a part of the pivoted plate-like portion. Since the elastic means for urging the peripheral side surface on which is formed is housed in the base portion, the element portion that is rotatable with respect to the holder portion in the horizontal plane is within a range of about 180 °. The antenna for an electronic device can be tilted and can have a click feeling when tilted and has a small and durable tilting mechanism and rotating mechanism.

FIG. 1 shows an example of the configuration of a portable electronic device including an antenna 1 according to a first embodiment of the portable electronic device antenna of the present invention.
The antenna 1 according to the first embodiment of the present invention is attached to the upper surface of a casing 51 constituting a mobile phone 50 which is a portable electronic device. The casing 51 is provided with an operation unit 52 including a numeric keypad and operation buttons and a display unit 53 including a liquid crystal. The antenna 1 can be tilted with respect to the casing 51 as shown by an arrow when extended, and can rotate in a horizontal plane in the tilted state. Further, the antenna 1 can be expanded and contracted in two stages so that the length of the antenna 1 can be changed. In addition, when the antenna 1 is retracted, the antenna 1 can be accommodated in the housing 51 while leaving the antenna top provided at the tip. As a result, the directivity of the antenna 1 attached to the mobile phone 50 can be directed in a desired direction, and the length of the antenna 1 can be changed, and a television broadcast such as a terrestrial digital broadcast can be received. It can be set as a suitable antenna when it is set as the portable telephone 50 which can be used.

Next, FIGS. 2 to 6 show the configuration of the antenna 1 which is the first embodiment of the antenna for portable electronic equipment according to the present invention. 2 and 4 are diagrams showing a configuration when the antenna 1 that can be expanded and contracted in two steps is extended, and FIG. 3 is a diagram showing the configuration shown in FIG. 2 in a sectional view. FIG. 5 is a diagram showing a configuration when the antenna 1 that can be expanded and contracted in two stages is retracted, and FIG. 6 is a diagram showing the configuration shown in FIG. 5 in a sectional view.
The antenna 1 of the first embodiment according to the present invention shown in FIGS. 2 and 3 includes a first element portion 2 having a top portion 10 provided at the tip, and a first element portion 2 slidably accommodated therein. The element part which consists of the possible 2nd element part 3 is provided, and this element part is hold | maintained at the base part 4 so that tilting is possible. The first element portion 2 is configured by covering a flexible element conductor 2a made of a superelastic alloy with a flexible insulating tube 2b. Further, the second element portion 3 is configured by covering a coil spring 3d which can be bent with a flexible insulating tube 3e. A metal upper hold part 3a is fitted to the upper part of the second element part 3, and a metal lower hold part 3c is fitted to the lower part. A holding spring 3f is fixed to the lower portion of the element conductor 2a in the first element portion 2, and when the first element portion 2 is slid in the second element portion 3, the first element portion 2 is operated by the action of the holding spring 3f. Is held in elastic contact with the inner peripheral surface of the coil spring 3d. As a result, the first element portion 2 can be pulled out from the second element portion 3 with an arbitrary length and held. A tilting base portion 8 is screwed to the lower end of the lower holding portion 3c, and the tilting base portion 8 is provided with a plate-like plate-like portion 8d formed in a substantially rectangular shape with rounded corners.

  The base portion 4 includes a pair of sandwiching pieces 7c that sandwich the plate-like portion 8d in the tilting base portion 8. The plate-like portion 8d is pivotally supported by the pivot 18 so as to be tiltable with respect to the sandwiching piece 7c (that is, the base portion 4). Has been. The outer diameter of the base portion 4 is substantially equal to the outer diameter of the second element portion 3. And the base part 4 and the 2nd element part 3 are hold | maintained so that the inside of the holder part 5 can be slid to an up-down direction. The holder portion 5 includes a cylindrical main body portion 5i having a flange portion formed on the upper portion. A screw portion is formed on the outer peripheral surface of the cylindrical main body portion 5i. The main body portion 5i is inserted into, for example, a hole formed in the casing 51 of the mobile phone 50, and a nut is fastened to the screw portion. As a result, the wall portion of the housing 51 is sandwiched between the flange portion and the nut of the holder portion 5, and the antenna 1 is attached to the mobile phone 50. 2 to 4 show a configuration of the antenna 1 in which the element portion including the first element portion 2 and the second element portion 3 is extended by sliding upward from the holder portion 5.

  As shown in the drawing, the plate-like portion 8 d pivotally supported by the pivot 18 so as to be tiltable with respect to the sandwiching piece 7 c is urged upward by the coil spring 14 via the pressing portion 13 housed in the base portion 4. Has been. As a result, in the antenna 1 of the first embodiment according to the present invention, the element portion composed of the first element portion 2 and the second element portion 3 is substantially the same as the base portion 4 as shown by the broken line in FIG. It can be tilted within a range of 180 °. Further, the plate-like portion 8d is formed in a substantially rectangular shape with rounded corners, and flat portions are formed on the lower surface and both side surfaces of the peripheral side surface. The flat top surface of the pressing portion 13 when tilted as indicated by a chain line (tilt angle of approximately ± 90 °) and when standing up as illustrated by a solid line in FIG. 4 (tilt angle of approximately 0 °). Further, the flat surface comes into contact with the peripheral side surface of the plate-like portion 8d beyond the corner portion, and a click feeling can be obtained.

  Further, a sliding spring is accommodated on the inner peripheral surface of the holder portion 5, and the base portion 4 is elastically held by the holder portion 5 by the action of the sliding spring. Thereby, in a state where the second element portion 3 is tilted at an arbitrary angle with respect to the base portion 4, the element portion composed of the first element portion 2 and the second element portion 3 is placed in a horizontal plane (correctly, a surface that can be tilted) It can rotate with respect to the holder part 5 in a substantially orthogonal plane). As a result, the antenna 1 having the extendable element portion composed of the first element portion 2 and the second element portion 3 can be tilted and rotated with respect to the housing, and the directivity characteristic of the antenna 1 is adjusted in a desired direction. Will be able to.

  Further, the top portion 10 is an antenna top 10a that is formed in a disc-like shape made of a synthetic resin that is gripped when the element portion composed of the first element portion 2 and the second element portion 3 is expanded and contracted, And a metal top mounting shaft 11 fixed to the tip of the first element portion 2. The antenna top 10 a is fixed by being molded or fitted on the top of the top mounting shaft 11. When the second element portion 3 is extended with respect to the holder portion 5 as shown in FIGS. 2 to 4, the sliding portion 6 is inserted into the holder portion 5 from below and held elastically. become. A locking portion 4b whose diameter is slightly larger than the outer diameter of the sliding portion 6 is formed integrally with the lower portion of the sliding portion 6, and the upper end of the locking portion 4b contacts the lower surface of the holder portion 5. When it does, the 2nd element part 3 will be in the state extended to the upper part.

  FIG. 5 is a diagram illustrating a configuration of the antenna 1 in which the first element portion 2 is retracted to the second element portion 3 and the second element portion 3 is retracted to the holder portion 5. A cross-sectional view of this configuration is shown in FIG. When contracted in this way, the antenna 1 can be stored in the housing 51. As shown in these drawings, when the first element portion 2 is housed in the second element portion 3 and retracted with respect to the holder portion 5, the antenna top fixed to the tip of the first element portion 2 is used. The top mounting shaft 11 in 10a is inserted into the holder portion 5 from above and is elastically held. At this time, the lower surface of the disk-shaped antenna top 10 a comes into contact with the upper surface of the collar portion of the holder portion 5. As shown in the figure, a tilting base portion 8 having a plate-like portion 8 d is screwed to the lower portion of the second element portion 3, and the plate-like portion 8 d of the tilting base portion 8 is tilted by a pivot 18 on the upper portion of the base portion 4. A pair of clamping pieces 7c that are pivotally supported is provided.

Next, sectional views showing configurations of a tilting mechanism and a rotating mechanism in the antenna 1 of the first embodiment according to the present invention are shown in FIGS. FIG. 7 is a cross-sectional view showing the configuration of the tilting mechanism and the rotating mechanism in a state in which the second element portion 3 is extended and tilted with respect to the holder portion 5, and FIG. FIG. 9 is a cross-sectional view showing the configuration of the tilting mechanism and the rotating mechanism in a state where the second element part 3 is extended with respect to the holder part 5. It is a side view which shows the structure of a mechanism with sectional drawing.
The configuration shown in FIGS. 7 to 9 will be described by explaining the configuration of the assembly of the base portion 4 and the holder portion 5. FIG. 10 is an exploded view of the assembly of the base portion 4, and the structure of the base portion 4 is shown in FIGS. However, Fig.11 (a) is a front view which shows the structure of the base part 4, FIG.11 (b) is the side view. 12 is a top view showing the configuration of the base portion 4, FIG. 13A is a front view showing the configuration of the base portion 4 in a sectional view, and FIG. 13B is a side view showing the configuration in the sectional view. is there. FIG. 14A is a front view showing the configuration of the tilting base 8, FIG. 14B is a side view showing the configuration of the tilting base 8 in a sectional view, and FIG. FIG. 14D is a bottom view showing the configuration of the tilting base 8. FIG. 15A is a front view showing the configuration of the pressing portion 13 in a sectional view, and FIG. 15B is a top view thereof. Further, the configuration of the coil spring 14 is shown in FIG. 16, and the configuration of the stopper portion 9 is shown in FIG.

  As shown in FIGS. 11 to 13, the metal base portion 4 is formed in a substantially cylindrical shape, and a plate in the tilting base portion 8 in which the upper portion of the base portion 4 is screwed to the lower end of the second element portion 3. The holding portion 7 is configured to hold the shape portion 8 d so as to be tiltable by the pivot 18, and a portion following the holding portion 7 is a sliding portion 6. In the clamping part 7, a pair of clamping pieces 7c and a kerf 7a are formed between the pair of clamping pieces 7c. Also, an insertion hole 7b is formed in the pair of sandwiching pieces 7c so as to communicate with each other, and the outer diameter of the insertion hole 7b is formed to be slightly larger. Further, the width of the cut groove 7a is set such that the plate-like portion 8d in the tilting base portion 8 can be inserted. Accordingly, the plate-like portion 8d in the tilting base portion 8 can be inserted and held in the cut groove 7a, and in this state, the insertion hole formed in the plate-like portion 8d from the insertion hole 7b in one holding piece 7c. By inserting the pivot 18 into the insertion hole 7b in the other clamping piece 7c via 8e, the second element part 3 to which the tilting base part 8 is screwed is tilted to about 90 ° on both sides with respect to the base part 4. (Tilt up to about 180 ° as a whole). A through hole 4 a having an inner diameter slightly smaller than the outer diameter of the sliding portion 6 is formed in the sliding portion 6 throughout. In addition, the enlarged locking part 4b is formed in the lower end of the sliding part 6, and the crimping part 6a is formed on the locking part 4b. When the second element portion 3 is extended, the upper end of the locking portion 4 b comes into contact with the lower surface of the holder portion 5. The sliding portion 6 is the most part of the base portion 4 except for the upper and lower portions.

  The tilting base portion 8 fixed to the lower hold portion 3c is made of metal, and as shown in FIGS. 14 (a) to 14 (d), a flange portion 8c is formed at a substantially central portion. A fixing portion 8a having a circular cross section is formed by extending from the upper surface of the flange portion 8c, and a plate-shaped portion 8d having a rectangular cross section having a substantially rectangular shape with rounded corners is extended to the lower surface of the flange portion 8c. ing. A screw portion 8b is formed from the tip of the fixing portion 8a to approximately 2/3, and an insertion hole 8e is formed in the flat plate-like portion 8d. The screw base 8 is fixed to the lower end of the second element portion 3 by screwing the screw portion 8 b into the female screw portion formed in the lower hold portion 3 c of the second element portion 3. Here, as shown in FIG. 9, a plate-like portion 8d is inserted into a kerf 7a formed between the sandwiching pieces 7c in the base portion 4, and from an insertion hole 7b formed in one of the sandwiching pieces 7c. The insertion shaft 8 is inserted through the insertion hole 8 e formed in the plate-like portion 8 d and further inserted into the insertion hole 8 e formed in the other holding piece 7 c.

The pivot 18 includes a shaft portion 16 and a fitting pin 17. The shaft portion 16 is configured as shown in FIGS. 18A to 18C, and the fitting pin 17 is configured as shown in FIGS. c). 18A is a front view showing the configuration of the shaft portion 16, FIG. 18B is a side view showing the configuration of the shaft portion 16, and FIG. 18C is a sectional view showing the configuration of the shaft portion 16. 19A is a front view showing the configuration of the fitting pin 17, FIG. 19B is a side view showing the configuration of the fitting pin 17, and FIG. It is a front view which shows a structure with sectional drawing.
The shaft portion 16 shown in FIGS. 18A to 18C is made of a metal such as stainless steel or brass, for example. The shaft portion 16 is composed of a cylindrical main body portion 16a, one of which is closed, and a head portion 16b having a circular cross section formed by expanding the diameter on the closed side. A fitting hole 16c having a circular cross section is formed over substantially the entire body 16a, and the tip of the body 16a is chamfered. Moreover, the corner | angular part by the side of the end surface of the head 16b is made into the rounded shape.
The fitting pins 17 shown in FIGS. 19A to 19C are made of a metal such as stainless steel or brass. The fitting pin 17 includes a head 17a having a circular cross section and a rod-shaped fitting portion 17b having a circular cross section extending from the head 17a. The fitting portion 17b is slightly squeezed from the center to the tip, and the tip is chamfered. The diameter of the fitting portion 17b is a diameter that can be press-fitted into the fitting hole 16c of the shaft portion 16. In addition, the corner | angular part by the side of the end surface of the head 17a is made into the rounded shape.

  When the shaft portion 16 configured in this way is passed through the insertion hole 8b formed in the plate-shaped portion 8d from the insertion hole 7b formed in one of the sandwiching pieces 7c, the shaft portion 16 is plate-shaped. The insertion hole 8e formed in the portion 8d passes through the insertion hole 8e formed in the other sandwiching piece 7c. Here, when the fitting pin 17 is inserted into the insertion hole 7b formed on the other side of the holding piece 7c, the fitting pin 17 is press-fitted into the fitting hole 16c of the shaft portion 16, and the head of the fitting pin 17 is inserted. When the portion 17a reaches the inside of the insertion hole 7b, the pivot 18 having a circular cross section is assembled. At this time, the head portion 16b of the shaft portion 16 and the head portion 17a of the fitting pin 17 are accommodated in a hole portion whose diameter is increased outside the insertion hole 7b. By this pivot 18, the tilting base portion 8 including the plate-like portion 8 d is pivotally supported with respect to the base portion 4 including the sandwiching piece 7 c. That is, the element portion including the first element portion 2 and the second element portion 3 to which the tilting base portion 8 is screwed is pivotally supported with respect to the base portion 4.

Next, as shown in FIG. 9, the pressing portion 13 is inserted into the through hole 4 a in the base portion 4 from below. As shown in FIGS. 15A and 15B, the pressing portion 13 is made of, for example, a metal such as brass or a resin such as polyacetal having excellent fatigue resistance. The pressing portion 13 includes a disk-shaped head portion 13b having a circular cross section and an extending portion 13c having a circular cross section with a reduced diameter extending from the lower surface of the head portion 13b. A flat pressing surface 13a that receives the peripheral side surface of the plate-like portion 8d is formed on the upper surface of the pressing portion 13 where the corners of the head portion 13b are chamfered. As shown in FIG. 9, the pressing portion 13 is inserted into the through hole 4a of the base portion 4 from the head 13b side, and the pressing surface 13a comes into contact with the peripheral side surface of the plate-like portion 8d.
Next to the pressing portion 13, the coil spring 14 is inserted into the through hole 4 a of the base portion 4 from below. As shown in FIG. 16, the coil spring 14 is formed by winding an elastic metal such as phosphor bronze or stainless steel. The inner diameter of the coil spring 14 is, for example, about 1.5 mm, and is inserted into an elongated extending portion 13c extending downward from the pressing portion 13 when inserted into the through hole 4a.

  Further, the stopper portion 9 is inserted into the through hole 4 a of the base portion 4 from the bottom next to the coil spring 14. As shown in FIG. 17, the stopper part 9 is made of resin such as polyacetal having excellent fatigue resistance, or is formed by processing a metal rod. An introduction portion 9a having a slightly smaller diameter and chamfered is formed at the upper portion of the stopper portion 9, and a tapered portion 9b for slightly increasing the diameter is formed below the introduction portion 9a. A fitting portion 9 c is formed following the taper portion 9 b, and the fitting portion 9 c has a diameter that is press-fitted into the through hole 4 a of the base portion 4. The introduction portion 9 a plays a role of guiding the fitting portion 9 c into the base portion 4 when the stopper portion 9 is press-fitted and fixed in the base portion 4. A caulking portion 9d having a slightly smaller diameter is formed following the fitting portion 9c, and a fastening portion 9e having the same diameter as the fitting portion 9c is formed under the caulking portion 9d. The cross-sectional shape of each part of the introduction part 9a, the taper part 9b, the fitting part 9c, the crimping part 9d, and the fastening part 9e is circular.

In FIG. 9, when the stopper portion 9 is press-fitted into the through hole 4 a of the base portion 4 following the coil spring 14, the crimping portion 6 a formed at the lower portion of the sliding portion 6 in the base portion 4 is crimped. . Thereby, the crimping part 6a of the base part 4 is crimped by the crimping part 9d of the stopper part 9, and the base part 4 and the stopper part 9 are firmly fixed, and the base part 4 is assembled. In this case, the pressing portion 13 is urged upward by the coil spring 14, and the peripheral side surface of the plate-like portion 8d with which the pressing surface 13a of the urging pressing portion 13 is in contact is urged upward. For this reason, the tilting base portion 8 is elastically pivoted, and the second element portion 3 can be tilted elastically. Then, when the second element portion 3 to which the tilting base portion 8 is screwed is tilted, the rounded corner peripheral side surface of the substantially rectangular plate-like portion 8d as shown in FIG. By pressing the flat pressing surface 13 a in 13, the pressing portion 13 is pushed down against the urging force of the coil spring 14. Further, when the second element portion 3 is tilted and tilted to approximately ± 90 ° as shown in FIG. 8, the rounded corner of the substantially rectangular plate-like portion 8d is overcome and the side surface is flat. The side surface comes into contact with the flat pressing surface 13 a of the pressing portion 13. As a result, the pressing portion 13 is raised by the urging force of the coil spring 14 and a click feeling is obtained. In addition, when the second element portion 3 is almost upright from the tilted state shown in FIG. 7, the flat peripheral side surface of the lower surface is pressed over the rounded corner of the substantially rectangular plate-like portion 8d. The portion 13 comes into contact with the flat pressing surface 13a. Also in this case, the pressing portion 13 is raised by the urging force of the coil spring 14, so that a click feeling can be obtained.
Thus, the second element portion 3 to which the tilting base portion 8 is screwed can be tilted to approximately ± 90 ° as shown in FIG. 8, and when tilted to approximately ± 90 °, and from the tilted state. A click feeling can be obtained when returning to an upright state.

Next, the structure of the assembly of the holder part 5 is shown in FIGS. 20 and 21, and the structure of the holder part 5 is shown in FIGS. 20 to 24. 20 is a sectional view showing the structure of the assembly of the holder part 5, FIG. 21 is an exploded view of the assembly of the holder part, FIG. 22 is a front view showing the structure of the holder part 5, and FIG. 24 is a top view showing the configuration of the part 5, and FIG.
As shown in FIGS. 22 to 24, the metal holder portion 5 has a main body portion 5i formed in a substantially cylindrical shape, and a disk-shaped flange portion 5b having a maximum diameter formed on the upper portion of the main body portion 5i. It is composed of The main body portion 5i includes a screw portion 5a having a screw formed on the outer peripheral surface, and a lower extension portion 5c having a diameter slightly smaller than that of the screw portion 5a formed by extending downward from the screw portion 5a. ing. Further, a through hole 5e is formed over the entire holder portion 5, and a cross-shaped cut groove 5d is formed on the upper surface of the flange portion 5b as shown in FIG. The kerf 5d is a groove into which a screwdriver or a dedicated tool is fitted when the holder unit 5 is attached to the housing of the electronic device.

  As shown in FIG. 24, a first step portion 5f is formed in the upper portion and a second step portion 5g is formed in the lower portion on the inner peripheral surface of the holder portion 5, and the space between the first step portion 5f and the second step portion 5g is formed. The inner diameter is slightly increased. As shown in FIGS. 20 and 21, the sliding spring 12 is inserted into the space between the first step portion 5 f and the second step portion 5 g from below, and when the sliding spring 12 is inserted, It comes into close contact with the inner peripheral surface of the holder portion 5 due to elasticity. Since the upper end of the sliding spring 12 is engaged with the first step portion 5f and the lower end is engaged with the second step portion 5g, the sliding spring 12 is held so as not to come out of the through hole 5e. . When the top mounting shaft 11 is inserted into the through hole 5e of the holder portion 5 from above, the sliding spring 12 elastically holds the top mounting shaft 11 and does not easily come out of the through hole 5e. Thus, when the base part 4 is inserted into the through hole 5e of the holder part 5 from below, the base part 4 is elastically held so that it cannot easily come out of the through hole 5e.

  The detailed configuration of the sliding spring 12 is shown in FIGS. 25 to 27, FIG. 25 is a development view showing the configuration of the sliding spring 12, and FIG. 26 is a top view showing the configuration of the sliding spring 12. FIG. 27 is a front view showing the configuration of the sliding spring 12. As shown in these drawings, a rectangular metal plate having elasticity such as phosphor bronze is formed with a plurality of rectangular cutout portions 12b rounded up and down at a predetermined interval in the main body portion 12a. A plurality of bent portions 12c are formed by processing so that the narrow width portion left on the main body portion 12a is slightly protruded from the main body portion 12a. The sliding spring 12 is formed by processing the main body 12a processed in this way into a circular shape as shown in FIG. In this case, the plurality of bent portions 12c formed between the notches 12b are projected to the inner surface side. The sliding spring 12 formed in this way is accommodated in the holder portion 5, so that when the top mounting shaft 11 or the base portion 4 is inserted into the holder portion 5, the bent portion 12 c is formed on the outer peripheral surface thereof. The top mounting shaft 11 or the base portion 4 is elastically held by the bent portion 12c.

That is, as shown in FIG. 9, when the base portion 4 is inserted into the through hole 5e of the holder portion 5 from below, the base portion 4 is elastically held so that it does not fall out of the through hole 5e due to its own weight. I have to. In addition, the taper part 5h is formed in the lower end internal peripheral surface of the lower extending | stretching part 5c, and it is set as the shape which can insert the base part 4 inserted in the through-hole 5e from a downward direction easily.
As described above, in the configuration shown in FIG. 9, in the state where the tilt base 8 fixed to the lower end of the second element portion 3 is tilted with respect to the base portion 4 as shown in FIG. 7 or FIG. When it is rotated in the horizontal plane, the sliding portion 6 rotates while sliding in the horizontal plane with respect to the holder portion 5, so that the element portion including the first element portion 2 and the second element portion 3 is shown in FIG. Thus, it can be rotated in a horizontal plane in a tilted state.

Next, a detailed configuration of an element portion including the first element portion 2 and the second element portion 3 is shown in a sectional view in FIG. 28, and an exploded view thereof is shown in FIG.
As shown in these drawings, in the first element part 2 constituting the element part, the element conductor 2a having a predetermined length having flexibility made of a superelastic metal such as a nickel-titanium alloy is made of vinyl or the like. It is covered with a flexible insulating tube 2b. The upper end portion of the element conductor 2a is firmly fixed to the metal top mounting shaft 11, and the top of the top mounting shaft 11 is fitted with a synthetic resin disk-shaped antenna top 10a. Yes. In addition, in the state where the cylindrical upper holding portion 3a made of metal is inserted into the element conductor 2a covered with the insulating tube 2b, the lower portion of the element conductor 2a has a thin cylindrical shape made of metal having elasticity. The holding spring 3f is inserted. A cylindrical thin caulking piece 3g made of metal is inserted under the holding spring 3f and caulked to the lower end of the element conductor 2a, so that the holding spring 3f does not come out of the element conductor 2a. .

An example of the configuration of the holding spring 3f is shown in FIGS. FIG. 33 (a) is a front view showing the configuration of the holding spring 3f, and FIG. 33 (b) is a top view showing the configuration of the holding spring 3f. As shown in these drawings, the holding spring 3 f is formed with a plurality of (for example, four) slits 29 having a predetermined length in a vertical direction in a thin metal pipe having elasticity such as phosphor bronze. These portions are bulged outwardly to form a plurality of bulging pieces 28. Note that the upper end surface of the holding spring 3f that is prevented from coming out of the element conductor 2a by the crimping piece 3g is in contact with the lower end surface of the insulating tube 2b. Further, the number of the slits 29 is not limited to four, and an arbitrary number of the protruding pieces 28 corresponding to the number of slits can be formed.
The structure of the caulking piece 3g is shown in FIGS. 34 (a) and 34 (b). 34A is a front view showing the configuration of the crimping piece 3g in a sectional view, and FIG. 34B is a top view showing the configuration of the crimping piece 3g. As shown in these drawings, the caulking piece 3g is formed by cutting a thin metal pipe into a predetermined length, and an insertion hole 31 penetrating the inside is formed. By inserting and crimping the lower end of the element conductor 2a protruding from the lower end of the holding spring 3f into the fitting hole 31, the insulating tube 2b and the holding spring 3f are fixed so as not to come out of the element conductor 2a. The

  The second element portion 3 is configured such that an upper hold portion 3a and a lower hold portion 3c are fitted to an upper portion and a lower portion of a coil spring 3d which is covered with a flexible insulating tube 3e and which can be freely bent. FIG. 32 is a cross-sectional view of the configuration of the metal upper hold portion 3a fitted on the upper portion of the second element portion 3. As shown in FIG. As shown in this figure, the upper hold portion 3a is substantially cylindrical, and is formed with a tapered insertion hole 25 that gradually decreases from the upper end to the bottom, and communicates with the insertion hole 25. An element fitting portion 26 having a large diameter is formed inside. Further, an element storage portion 27 that is communicated with the element fitting portion 26 and has a slightly enlarged diameter is formed. The element conductor 2a covered with the insulating tube 2b is inserted into the insertion hole 25, and the narrowed inner diameter of the lower end of the insertion hole 25 is made smaller than the outer diameter of the upper part of the holding spring 3f. Accordingly, when the first element portion 2 is pulled out from the second element portion 3, the upper end surface of the holding spring 3f comes into contact with the periphery of the lower end of the insertion hole 25, and the first element portion 2 expands without coming out. Will be stopped. Further, the upper part of the coil spring 3d covered with the insulating tube 3e is accommodated in the element accommodating part 27, and the upper end of the coil spring 3d protruding from the insulating tube 3e is accommodated in the element fitting part 26. By crimping the outer peripheral surface of the attaching portion 26, the upper end of the coil spring 3d is fitted into the upper hold portion 3a.

  FIG. 31 is a cross-sectional view showing the configuration of the metal lower hold portion 3c fitted to the lower portion of the second element portion 3. As shown in FIG. As shown in this figure, the lower hold part 3c is substantially cylindrical, and an element storage part 21 having a large diameter is formed from the upper part to the center part. An element fitting portion 22 that is slightly narrowed in diameter is formed in communication with the element storage portion 21, and a through hole 24 that is thinner than the element fitting portion 22 is formed in the lower portion of the lower holding portion 3c. ing. A female screw portion 23 is formed in the upper 2/3 range on the inner peripheral surface of the through hole 24. The lower part of the coil spring 3d covered with the insulating tube 3e is housed in the element housing part 21, and the lower end of the coil spring 3d protruding from the insulating tube 3e is housed in the element fitting part 22, and the element fitting part By crimping the outer peripheral surface of 22, the lower end of the coil spring 3d is fitted into the lower hold portion 3c. It should be noted that punching may be performed instead of caulking. Further, a screw portion 8 b formed on the upper portion of the fixing portion 8 a in the tilting base portion 8 is screwed to the female screw portion 23.

  The structure of the coil spring 3d is shown in FIGS. 30 (a) and 30 (b). FIG. 30A is a front view showing the configuration of the coil spring 3d, and FIG. 30B is a sectional view thereof. As shown in these drawings, the coil spring 3d is formed by winding an elastic metal wire having an elongated cross section. The upper and lower edges on the outer peripheral side of the metal wire are chamfered, and when the coil spring 3d is bent, the chamfered edges are bent while contacting. For this reason, the second element portion 3 can be bent smoothly, and the electric length does not substantially change even if it is bent.

  Next, the assembly process of the element portion will be described with reference to FIG. 29. The top mounting shaft 11 having the antenna top 10a fitted thereon is fixed to the upper end of the element conductor 2a. Next, the insulating tube 2b is inserted from below the element conductor 2a, and the upper hold portion 3a is inserted therethrough. Further, the holding spring 3f and the crimping piece 3g are inserted into the element conductor 2a protruding below the insulating tube 2b in this order, and the crimping piece 3g is crimped to the element conductor 2a. Thereby, the 1st element part 2 is assembled. Next, the element conductor 2a fitted with the holding spring 3f is inserted into the coil spring 3d covered with the insulating tube 3e while sliding, and the upper end of the coil spring 3d is inserted into the upper hold portion 3a from below. Then, the element fitting portion 26 is crimped. Further, the lower holding portion 3c is fitted into the lower portion of the coil spring 3d covered with the insulating tube 3e, and the element fitting portion 22 is crimped. Thereby, the element part which consists of the 1st element part 2 and the 2nd element part 3 can be assembled.

  Returning to FIG. 9, when the element part composed of the second element part 3 and the first element part 2 screwed to the screw part 8 b in the tilting base part 8 is extended with respect to the holder part 5, it is fixed to the lower end of the element part. The base portion 4 is inserted into the holder portion 5 from below. Then, the upper end of the locking portion 4b formed at the lower end of the base portion 4 is brought into contact with the lower end of the holder portion 5, and the extension is stopped. Thereby, the part of the clamping part 7 located on the upper part of the base part 4 comes to protrude upward from the holder part 5. In this extended state, the base portion 4 is held by the sliding spring 12 housed in the main body portion 5 i of the holder portion 5, and the element portion does not come out downward due to its own weight. Here, when a load is applied to the element portion in the lateral direction, the element portion pivotally supported on the base portion 4 by the pivot 18 is tilted with respect to the base portion 4 as shown in FIG. . Then, when the tilt angle of the element portion with respect to the base portion 4 is about ± 90 ° as shown in FIG.

  A pair of sandwiching pieces 7 c is formed on the upper portion of the base portion 4, and a plate-like portion 8 d of the tilting base portion 8 is pivotally supported by a pivot 18 in a groove 7 a between the pair of sandwiching pieces 7 c. Further, a coil spring 14 is disposed between the stopper portion 9 and the pressing portion 13 which are press-fitted and fixed from the lower end of the base portion 4. Even if the coil spring 14 is inserted into the extending portion 13c of the pressing portion 13 and deformed, the position thereof is prevented from shifting. In this configuration, the coil spring 14 applies an urging force for maintaining the element portion tilted against its own weight from below to the pressing portion 13. In this way, the urging force applied from below by the coil spring 14 to the pressing portion 13 is applied to the peripheral side surface of the plate-like portion 8d in the tilting base portion 8 that is in contact with the pressing surface 13a of the pressing portion 13. Thus, when the tilt angle with respect to the base portion 4 is about ± 90 ° shown by a two-dot chain line in FIG. 4, the pressing surface 13a is in contact with the flat side surface of the plate-like portion 8d. You can touch and get a click. Further, when the tilt angle with respect to the base portion 4 returns to an upright state of about 0 ° shown by a solid line in FIG. 4, the pressing surface 13a comes into contact with the flat lower surface on the peripheral side surface of the plate-like portion 8d and clicks. A feeling can be obtained. Further, when the element portion is tilted, the sliding portion 6 of the base portion 4 is rotated relative to the holder portion 5 while being elastically held by the sliding spring 12 when being rotated in the horizontal plane. Thus, the element portion can be rotated in the horizontal plane. In this case, even if the element portion is rotated, a biasing force for holding the position against its own weight is applied to the base portion 4 by the sliding spring 12.

  As described above, in the antenna 1 according to the first embodiment of the present invention, the tilting mechanism is mainly configured by the base portion 4 on which the pair of sandwiching pieces 7c are formed, the plate-like portion 8d of the tilting base portion 8, and the pivot shaft 18. The pressing portion 13, the coil spring 14, and the stopper portion 9 for applying a biasing force to the tilting base portion 8 supplement this configuration. The rotation mechanism is mainly composed of a holder portion 5 and a base portion 4 having a sliding portion 6, and a sliding spring 12 supplements this configuration. In this tilting mechanism, the width of the plate-like portion 8d in the tilting base portion 8 screwed to the lower end of the second element portion 3 can be about 3.7 mm, which is the same as the maximum width of the base portion 4. A holding force can be applied by the coil spring 14, and sufficient durability can be obtained. In this case, a click feeling can be obtained in the tilting mechanism that can tilt to about ± 90 °, the maximum diameter of the base portion 4 can be about 3.7 mm, and the length can be about 13 mm. The outer diameter of 5i can be about 5 mm. As described above, the antenna 1 according to the first embodiment of the present invention can be almost the same size as the antenna without the tilting mechanism used in the conventional mobile phone, and the base is formed by the sliding spring 12 in the rotating mechanism. Since a sufficient frictional force can be applied to the portion 4, a sufficient rotational holding force can be obtained and a sufficient durability can be obtained.

Next, sectional views showing configurations of the tilting mechanism and the rotating mechanism in the antenna 60 of the second embodiment according to the present invention are shown in FIGS. FIG. 35 shows a configuration of the base part 4 and the holder part 5 in a state where the base part 4 is elastically held in the holder part 5 by extending the second element part 3 with respect to the holder part 5. FIG. 36 is a cross-sectional view, and a side view of the configuration is shown in FIG.
The antenna 60 according to the second embodiment of the present invention shown in these drawings has a configuration stored in the base portion and a configuration stored in the lower hold portion fixed to the lower portion of the second element portion. Unlike the configuration of the antenna 1, the other configuration is the same as the configuration of the antenna 1 of the first embodiment. Therefore, the configuration stored in the base portion and the configuration stored in the lower hold portion will be described below, and description of the remaining configuration will be omitted.

In the base portion 404 of the antenna 60 according to the second embodiment of the present invention, a screw portion 408b formed on the fixing portion 408a of the tilting base portion 408 is screwed to the upper portion, and the tilting base portion 408 is fixed. A plate-like portion 408 d formed on the tilting base portion 408 protrudes upward from the base portion 404. The base portion 404 and the tilting base portion 408 are made of metal, and the base portion 404 is configured such that the holding portion 7 of the base portion 4 of the first embodiment is omitted and a female screw is formed on the upper inner peripheral surface. The base 408 has the same configuration as the tilting base 8 of the first embodiment. A fitting portion 419 serving as a lid is fitted on the inner peripheral surface of the lower end of the base portion 404.
A holding part 407 having a pair of holding pieces is formed at the lower end of the lower holding part 403c, and a plate-like part 408d is pivotally supported by a pivot 418 in a kerf between the pair of holding pieces. The pivot 418 is configured by fitting a fitting pin 417 on the shaft portion 416. The shaft portion 416 and the fitting pin 417 are made of, for example, a resin such as polyacetal having excellent fatigue resistance. The configuration of the shaft portion 16 and the fitting pin 17 in one embodiment is the same.

  The pressing portion 413 is inserted from above into the lower holding portion 403c having the clamping portion 407 formed at the lower end. The pressing part 413 is made of, for example, a resin such as polyacetal having excellent fatigue resistance, and has the same configuration as the pressing part 13 of the first embodiment. When the pressing portion 413 is inserted into the lower hold portion 403c from the pressing surface side, the pressing surface comes into contact with the peripheral side surface of the plate-shaped portion 408d. Next to the pressing part 413, the coil spring 414 is inserted into the lower holding part 403c from above. The coil spring 414 is configured by winding an elastic metal such as phosphor bronze or stainless steel, and has the same configuration as the coil spring 14 of the first embodiment. The inner diameter of the coil spring 414 is about 1.5 mm, for example, and is inserted into an elongated elongated portion 413c that extends upward from the pressing portion 413 when inserted. Further, after the coil spring 414, the stopper portion 409 is inserted into the lower hold portion 403c from above. The stopper part 409 is made of resin such as polyacetal having excellent fatigue resistance, or is formed by processing a metal rod, and has the same configuration as the stopper part 9 of the first embodiment.

  When the stopper portion 409 is press-fitted into the lower hold portion 403c following the coil spring 414, the lower hold portion 403c located around the stopper portion 409 is crimped. Thereby, the lower hold part 403c and the stopper part 409 are firmly fixed. In this case, the pressing portion 413 is biased downward by the coil spring 414, and the peripheral side surface of the plate-like portion 408d with which the pressing surface of the biased pressing portion 413 is in contact is biased downward. For this reason, the lower holding part 403c is elastically pivotally supported on the tilting base part 408 fixed to the upper part of the base part 404, and the lower holding part 403c is elastically tilted with respect to the base part 404. Will be able to. Then, as the lower hold portion 403c is tilted, the rounded corner peripheral side surface of the plate-like portion 408d having a substantially rectangular shape presses the flat pressing surface of the pressing portion 413 as shown in FIG. The pressing portion 413 is pushed up against the urging force of the coil spring 414. Further, when the lower hold part 403c is tilted and tilted to approximately ± 90 °, the flat peripheral side surface of the pressing part 413 is flattened over the rounded corner of the substantially rectangular plate-like part 408d. It comes into contact with the pressing surface. As a result, the pressing portion 413 is lowered by the urging force of the coil spring 414 to obtain a click feeling. Further, even when the lower holding portion 403c is almost upright from the tilted state, the flat peripheral surface of the upper surface is flat in the pressing portion 413 so as to overcome the rounded corner of the substantially rectangular plate-like portion 408d. It comes into contact with the pressing surface. Also in this case, since the pressing portion 413 is lowered by the biasing force of the coil spring 414, a click feeling can be obtained.

In this way, the lower holding portion 403c can be tilted to approximately ± 90 ° with respect to the base portion 404 to which the tilting base portion 408 is screwed, and when tilted to approximately ± 90 °, it is upright from the tilted state. A click feeling can be obtained when the state is restored.
The lower part of the coil spring 403d covered with the insulating tube 403e is accommodated in the element accommodating part 421 at the upper part of the lower hold part 403c, and the coil spring 403d protruding from the insulating tube 403e is accommodated in the lower element fitting part. The lower end of the coil spring 403d is fitted into the lower hold part 403c by crimping the outer peripheral surface of the element fitting part. The coil spring 403d covered with the insulating tube 403e is disposed on the stopper portion 409 and is fixed in the lower hold portion 403c. Furthermore, the configuration of the holder portion 405 including the sliding spring 412 that elastically holds the base portion 404 is the same as the configuration of the holder portion 5 including the sliding spring 12 of the first embodiment.

  As described above, in the antenna 60 according to the second embodiment of the present invention, the tilting mechanism includes the lower holding part 403c in which the clamping part 407 including a pair of clamping pieces is formed, the plate-like part 408d of the tilting base part 408, and the pivot 418. The press part 413, the coil spring 414, and the stopper part 409 which give urging | biasing force to the tilting base part 408 supplement this structure. The rotation mechanism is mainly composed of a holder part 405 and a base part 404, and a sliding spring 412 that holds the base part 404 so as to be slidable supplements this structure. In this tilting mechanism, since the width of the plate-like portion 408d in the tilting base portion 408 screwed to the upper end of the base portion 404 can be about 3.7 mm, which is the same as the maximum width of the base portion 404, sufficient holding force can be obtained. Can be provided by the coil spring 414, and sufficient durability can be obtained. In this case, a click feeling can be obtained in the tilting mechanism that can tilt up to about ± 90 °, the maximum diameter of the base portion 404 can be about 3.7 mm, and the length can be about 13 mm. The outer diameter of 405i can be about 5 mm. As described above, the antenna 60 according to the second embodiment of the present invention can be almost the same size as the antenna without the tilting mechanism used in the conventional mobile phone, and the base is formed by the sliding spring 412 in the rotating mechanism. Since a sufficient frictional force can be applied to the portion 404, a sufficient rotational holding force can be obtained and a sufficient durability can be obtained.

  In the above description, in the tilting mechanism in the antenna 1 of the first embodiment and the antenna 60 of the second embodiment according to the present invention, when the antenna portion is placed in series and tilted to about ± 90 °. A click feeling was obtained. The present invention can provide a click feeling at other tilt angles. The structure of the modified example of the tilt base in that case is shown to Fig.37 (a) (b) (c). 37A is a front view showing the configuration of the first modification of the tilt base, FIG. 37B is a front view showing the configuration of the second modification of the tilt base, and FIG. 37C is the tilt base. It is a front view which shows the structure of this 3rd modification.

  When the tilt base 48-1 of the first modification shown in FIG. 37 (a) is used, when the antenna portion is placed in series, when the antenna portion is tilted to about ± 45 °, and when the antenna portion is A click feeling can be obtained when tilted to about ± 90 °. That is, the tilting base portion 48-1 of the first modified example has a flange portion 48-1c formed at the center, and a fixing portion 48-1a having a circular cross section is extended from the upper surface of the flange portion 48-1c. A flat plate-like part 48-1d having a substantially rectangular cross section is formed on the lower surface of the flange part 48-1c. The plate-like portion 48-1d has flat surfaces 48-1f formed on both sides and a lower surface of the peripheral side surface, and a flat surface 48-1f inclined at about 45 ° at the lower corner. Further, a screw part 48-1b is formed from the tip of the fixing part 48-1a to approximately 2/3 part, and an insertion hole 48-1e is formed in the flat plate-like part 48-1d. . The screw portion 48-1 b is screwed to the female screw portion formed in the lower hold portion 3 c of the second element portion 3 or the upper portion of the base portion 404. The plate-like portion 48-1d is pivotally supported by the pinching portion 7 (407) by the pivot 18 (408), and the pressing portion 13 (413) urged on the peripheral side surface of the plate-like portion 48-1d is flat. The pressing surface comes into contact. As a result, when the antenna portion is placed in series, when the antenna portion is tilted to about ± 45 °, and when the antenna portion is tilted to about ± 90 °, the flat surface 48- The pressing surface of the pressing portion 13 (413) is brought into elastic contact with 1f so that a click feeling can be obtained.

In addition, the tilting base portion 48-2 of the second modification shown in FIG. 37B slightly rounds the boundary portion between the flat surfaces 48-1f of the tilting base portion 48-1 of the first modification. When the antenna portion is tilted, a click feeling can be obtained while smoothly tilting.
Further, the tilt base 48-3 of the third modification shown in FIG. 37 (c) is tilted to about ± 45 ° formed on the plate-like part 48-2d of the tilt base 48-2 of the second modification. Instead of the flat surface 48-2f, a flat surface 48-3f inclined at about ± 30 ° is formed. As a result, when the antenna portion is placed in series, when the antenna portion is tilted to about ± 30 °, and when the antenna portion is tilted to about ± 90 °, the flat surface 48- of the plate-like portion 48-3d. The pressing surface of the pressing portion 13 (413) abuts on 3f elastically, and a click feeling can be obtained.
It should be noted that a flat surface inclined at an arbitrary angle can be provided on the peripheral side surface of the plate-like portion of the tilting base, and a click feeling can be obtained when the antenna portion is tilted at an arbitrary angle.

  The antenna portion of the antenna 1 according to the first embodiment and the antenna 60 according to the second embodiment described above can be rotated in a horizontal plane by tilting the antenna portion at an arbitrary angle by the tilt mechanism and the rotation mechanism. As a result, the antenna portion attached to the casing of the electronic device can be directed in an arbitrary direction of arrival of radio waves. In addition, the first element portion and the second element portion constituting the element portion have flexibility to be able to be restored when subjected to an impact, and can be expanded and contracted in two stages to receive channels. The length of the element portion can be adjusted according to the situation, and can be stored in the housing when further contracted. Furthermore, the electrical length of the antenna portion mounted on the mobile phone 50 is designed to resonate substantially with the frequency band used in the mobile phone including the matching circuit in the housing 51, which makes terrestrial digital broadcasting more efficient. It is supposed that it can be received.

In the above description, the antenna has been described as an antenna for a portable electronic device such as a mobile phone capable of receiving a television broadcast. However, the present invention is not limited to this, and is generally applicable to an antenna that needs to tilt and rotate in a horizontal plane. Is something that can be done.
In addition, although the antenna portion can be expanded and contracted in two steps, the antenna portion is not limited to this and may be a one-stage antenna portion.

It is an example of a structure of a portable electronic device provided with the antenna used as the 1st Example of the antenna for portable electronic devices of this invention. It is a figure which shows the structure of the expansion | extension state of the antenna which is 1st Example of the antenna for portable electronic devices of this invention. It is sectional drawing which shows the structure of the expansion | extension state of the antenna which is 1st Example of the antenna for portable electronic devices of this invention. It is a figure which shows the usage condition of the expansion | extension state of the antenna which is 1st Example of the antenna for portable electronic devices of this invention. It is a figure which shows the structure of the contracted state of the antenna which is 1st Example of the antenna for portable electronic devices of this invention. It is sectional drawing which shows the structure of the contracted state of the antenna which is 1st Example of the antenna for portable electronic devices of this invention. In the antenna which is 1st Example of this invention, it is sectional drawing which shows the structure of the tilting mechanism and rotation mechanism of the state which extended and tilted the 2nd element part with respect to the holder part. In the antenna which is 1st Example of this invention, it is sectional drawing which shows the structure of the tilting mechanism and rotation mechanism of the state which extended the 2nd element part with respect to the holder part, and tilted to about 90 degrees. In the antenna which is 1st Example of this invention, it is a side view which shows the structure of the tilting mechanism and rotation mechanism of the state which extended the 2nd element part with respect to the holder part with sectional drawing. It is an exploded view of the assembly of the base part in the antenna which is 1st Example of this invention. It is the front view and side view which show the structure of the base part in the antenna which is 1st Example of this invention. It is a top view which shows the structure of the base part in the antenna which is 1st Example of this invention. It is the front view and side view which show the structure of the base part in the antenna which is 1st Example of this invention with sectional drawing. It is the front view which shows the structure of the tilting base part in the antenna which is 1st Example of this invention, the front view shown with sectional drawing, a top view, and a bottom view. It is the front view and top view which show the structure of the press part in the antenna which is 1st Example of this invention with sectional drawing. It is a front view which shows the structure of the coil spring in the antenna which is 1st Example of this invention. It is a front view which shows the structure of the stopper part in the antenna which is 1st Example of this invention. It is the front view which shows the structure of the axial part in the antenna which is 1st Example of this invention, a front view shown with a side view, and sectional drawing. It is the front view which shows the structure of the fitting pin in the antenna which is 1st Example of this invention, a side view, and a front view shown with sectional drawing. It is a front view which shows the assembly of the holder part in the antenna which is 1st Example of this invention with sectional drawing. It is an exploded view of the assembly of the holder part in the antenna which is 1st Example of this invention. It is a front view which shows the structure of the holder part in the antenna which is 1st Example of this invention. It is a top view which shows the structure of the holder part in the antenna which is 1st Example of this invention. It is sectional drawing which shows the structure of the holder part in the antenna which is 1st Example of this invention. It is an expanded view which shows the structure of the sliding spring in the antenna which is 1st Example of this invention. It is a top view which shows the structure of the sliding spring in the antenna which is 1st Example of this invention. It is a front view which shows the structure of the sliding spring in the antenna which is 1st Example of this invention. It is a front view which shows the structure of the element part in the antenna which is 1st Example of this invention with sectional drawing. FIG. 3 is an exploded view showing a configuration of an element portion of the antenna according to the first embodiment of the present invention. It is the front view and sectional drawing which show the structure of the coil spring in the antenna which is 1st Example of this invention. It is sectional drawing which shows the structure of the lower hold part in the element part of the antenna which is 1st Example of this invention. It is sectional drawing which shows the structure of the upper hold part in the element part of the antenna which is 1st Example of this invention. It is the front view and top view which show the structure of the holding spring in the element part of the antenna which is 1st Example of this invention. It is sectional drawing and the top view which show the structure of the crimping piece in the element part of the antenna which is 1st Example of this invention. In the antenna which is 2nd Example of this invention, it is sectional drawing which shows the structure of the tilting mechanism and rotation mechanism of the state which extended the 2nd element part with respect to the holder part. In the antenna which is 2nd Example of this invention, it is a side view which shows the structure of the tilting mechanism and rotation mechanism of the state which extended the 2nd element part with respect to the holder part with sectional drawing. It is a front view which shows the structure of some modifications of the tilting base part concerning the antenna of this invention. It is a figure which shows the structure of an example of the antenna for the conventional mobile telephones. It is a figure which shows the structure of an example of the antenna using the conventional rod antenna. It is a figure which shows the structure of the tilting mechanism in the antenna using the conventional rod antenna. It is a figure which shows the structure of the other example of the conventional antenna which can be tilted and rotated conventionally. It is sectional drawing which shows the structure of the other example of the conventional antenna which can be tilted and rotated conventionally.

Explanation of symbols

1 Antenna, 2 Element part, 2a Element conductor, 2b Insulating tube, 3 Element part, 3a Upper holding part, 3c Lower holding part, 3d Coil spring, 3e Insulating tube, 3f Holding spring, 3g Caulking piece, 4 Base part, 4a Through hole, 4b Locking part, 5 Holder part, 5a Threaded part, 5b Ridge part, 5c Lower extension part, 5d Cut groove, 5e Through hole, 5f First step part, 5g Second step part, 5h Taper part, 5i Main body part, 6 sliding part, 6a crimping part, 7 clamping part, 7a groove, 7b insertion hole, 7c clamping piece, 8 tilting base part, 8a fixing part, 8b screw part, 8c collar part, 8d plate-like part, 8e Insertion hole, 9 stopper part, 9a introduction part, 9b taper part, 9c fitting part, 9d crimping part, 9e fastening part, 10 top part, 10a antenna top, 11 Mounting shaft, 12 sliding spring, 12a body part, 12b notch part, 12c bent part, 13 pressing part, 13a pressing surface, 13b head part, 13c extension part, 14 coil spring, 16 shaft part, 16a body part, 16b Head portion, 16c fitting hole, 17 fitting pin, 17a head portion, 17b fitting portion, 18 pivot, 21 element storage portion, 22 element fitting portion, 23 female screw portion, 24 through hole, 25 insertion hole, 26 Element fitting part, 27 Element storage part, 28 bulging piece, 29 slit, 31 fitting hole, 48-1 to 48-3 tilting base part, 48-1a to 48-3a fixing part, 48-1b to 48-3b Screw part, 48-1c to 48-3c collar part, 48-1d to 48-3d plate-like part, 48-1e to 48-3e insertion hole, 48-1f to 48-3f flat surface, 50 mobile phone , 51 housing, 52 operation unit, 53 display unit, 60 antenna, 100 antenna, 101 element, 102 holder unit, 103 top unit, 200 antenna, 201 telescopic element, 201a element base, 202 antenna mounting unit, 203 rotation holding unit 204, fixing screw, 300 antenna, 301 element, 302 holder part, 302 spherical part, 303 holder part, 304 top part, 305 coil spring, 403c lower holding part, 403d coil spring, 403e insulating tube, 404 base part, 405 Holder part, 405i body part, 407 clamping part, 408 tilting base part, 408a fixing part, 408b screw part, 408d plate-like part, 409 stopper part, 412 sliding spring, 413 pressing part, 413c extension Parts, 414 a coil spring, 416 shaft portion 417 fitting pins, 418 pivot, 419 fitting portion, 421 the element housing portion

Claims (5)

An element part having a flexible element, a top part having a top mounting shaft fixed to the tip of the element, and a tilting base part having a plate-like part fixed to the lower end;
By pivotally supporting the plate-like portion in the tilt base fixed to the lower end of the element portion, the element portion is held so as to be tiltable, and the outer diameter substantially the same as the maximum diameter of the element in the element portion. A base portion having a diameter,
The element portion is slidably held, the base portion is elastically held when the element portion is pulled out, and the top mounting shaft is elastically held when the element portion is retracted. Holder part,
The element portion is pivotally supported with respect to the base portion by a pivot passing through a clamping portion formed at an upper portion of the base portion and the plate-like portion of the tilting base portion fixed to the lower end of the element portion. The element portion is substantially 180 ° with respect to the base portion by urging the peripheral side surface in which a flat surface is formed on at least a part of the plate-like portion and elastic means housed in the base portion. It is held so as to be tiltable in a range, and a click feeling is imparted when it is tilted. Further, the base portion is elastically held by the holder portion, so that the element portion can be held with respect to the holder portion in a horizontal plane. An antenna for portable electronic devices, characterized in that the antenna is rotatable. The plate-like portion is formed in a substantially rectangular shape in which a plurality of flat surfaces are formed on the peripheral side surface,
The elastic means housed in the base part is fitted into a pressing part in which a flat pressing surface for pressing a peripheral side surface of the plate-like part which is substantially rectangular is formed on the upper surface, and a lower part in the base part. It is constituted by a spring means disposed between the stopper portion that is worn and the pressing portion,
When the element portion is tilted, a click feeling is obtained when the pressing surface of the pressing portion biased by the spring means comes into contact with one of the flat surfaces of the plate-like portion. The antenna for portable electronic devices according to claim 1, wherein An element part having a flexible element, a top part having a top mounting shaft fixed to the tip of the element, and a clamping part formed at the lower end;
The clamping part formed at the lower end of the element part is pivotally supported by a tilting base part having a plate-like part fixed to the upper part, thereby holding the element part in a tiltable manner. A base portion having an outer diameter substantially the same as the maximum diameter of the element;
The element portion is slidably held, the base portion is elastically held when the element portion is pulled out, and the top mounting shaft is elastically held when the element portion is retracted. Holder part,
The pivot portion penetrating the clamping portion formed at the lower end of the element portion and the plate-like portion of the tilt base fixed to the upper portion of the base portion, the element portion is pivotally supported with respect to the base portion, The element portion is substantially 180 ° with respect to the base portion by urging the peripheral side surface where a flat surface is formed on at least a part of the plate-like portion and elastic means housed in the element portion. It is held so as to be tiltable in a range, and a click feeling is imparted when it is tilted. Further, the base portion is elastically held by the holder portion, so that the element portion can be held with respect to the holder portion in a horizontal plane. An antenna for portable electronic devices, characterized in that the antenna is rotatable. The plate-like portion is formed in a substantially rectangular shape in which a plurality of flat surfaces are formed on the peripheral side surface,
The elastic means housed in the element part is fitted into the element part, a pressing part having a flat pressing surface formed on the lower surface for pressing the peripheral side surface of the substantially rectangular plate-like part. It is constituted by a spring means disposed between the stopper portion that is worn and the pressing portion,
When the element portion is tilted, a click feeling is obtained when the pressing surface of the pressing portion biased by the spring means comes into contact with one of the flat surfaces of the plate-like portion. The antenna for portable electronic devices according to claim 3, wherein When the element portion is extended with respect to the holder portion, the locking portion formed by expanding the diameter of the lower portion of the base portion is locked to the lower end of the holder portion, so that the extension stops. The antenna for portable electronic devices according to any one of claims 1 to 4, wherein the antenna is used.

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