JP2003032016A - Turning mechanism for antenna - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a turning mechanism for an antenna, that can turn the antenna (21) around a turning axis (Y axis) with a simple configuration and prevent a feeder (107) from being broken. SOLUTION: The antenna (21) connected to a tip (107A) of the feeder (107) is freely turnably contained in a cylindrical cover (8). Although the feeder (107) whose base end (107B) is bound is twisted by the turning of the antenna (21) around the turning axis (Y axis), since a torque exerted to the antenna (21) caused by the twisted feeder (107) turns the antenna (21) in a twisted direction of the feeder (107), no torsional stress to break the feeder (107) is caused even when the antenna (21) is repeatedly turned in the turning direction around the turning axis (Y axis).

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotating mechanism for an antenna attached to mobile data communication equipment, and more particularly, to improve the characteristics when the antenna is used and to store the antenna when the antenna is not used. The present invention relates to a rotating mechanism of an antenna that can rotate around.

[0002]

[Prior art]

An antenna for wireless communication is provided in a mobile data communication device or a modem card which is connected to a notebook computer and used as a mobile data communication device. When used, it is rotatably attached to these devices and cards so as to be compactly stored.

FIG. 8 shows a structure in which two types of conventional antenna rotating mechanisms 100 and 200 are combined so that the standing position and the storage position of the antenna 101 are not restricted about one axis.
The antenna 101 is attached to a C card (modem card) 102 so as to be rotatable about two orthogonal axes (X axis and Y axis).

An antenna rotation mechanism 100 that allows the antenna 101 to rotate about the X axis is composed of a male rotary connector 103 and a female rotary connector 104 mounted on the peripheral edge of a PC card 102.

Housing 10 of male rotary connector 103
3a and the housing 104a of the female rotary connector 104 are formed in a concavo-convex shape for fitting and connection, and the surfaces facing each other are formed into a cylindrical surface having the central axis as the X-axis, so that they can rotate around the X-axis. Has become. Also, the housing 103
center contact 105a and earth contact 105b attached to a and center contact 106a and earth contact 106 attached to housing 104a.
The contact surfaces of b that are in contact with each other are also cylindrical surfaces whose central axis is the X axis, and the housing 103
While a and 104a rotate relative to each other, they are always in contact with each other.

Therefore, the female rotary connector 104 is rotatable about the X axis with respect to the male rotary connector 103 whose rotation about the X axis is restricted, and is electrically connected between the contacts while rotating. Is maintained.

In FIG. 8, the center contact 106a of the female rotary connector 104 is provided with a center conductor 107a of a coaxial cable 107 serving as a power supply line from the antenna 101.
The outer conductor 107b of the coaxial cable 107 is soldered to the ground contact 106b, and the center contact 105a and the ground contact 105b of the male rotary connector 103 are respectively coupled to each other via a conductive pattern on the PC card 102 by an antenna (not shown). Connected to the circuit.

The antenna rotation mechanism 200 that allows the antenna 101 to rotate around the Y-axis is a female rotary connector 10.
4 is a cylindrical portion bent in the Y-axis direction on the equipment side connector 10
4A, and is composed of the device side connector 104A and the L-shaped connector 110.

The device-side connector 104A is formed in a cylindrical shape with the Y-axis as the central axis.
The ring-shaped groove 108 formed on the outer side surface of the connector is engaged with the engaging protrusion 111 protruding toward the inside of the rotating portion 110A of the L-shaped connector 110 to connect the rotating portion 110A rotatably around the Y axis. is doing.

The L-shaped connector 110 includes a rotating portion 110A which rotates around the Y axis and an antenna supporting portion 1 which is parallel to the X axis.
10B is integrally connected to the female rotary connector 104 (device-side connector 104
The coaxial cable 107 drawn out from A) is inserted.

A cylindrical cover 112 is integrally attached to the antenna support portion 110B continuously in the extension direction thereof.
Antenna 101 fixedly housed in tubular cover 112
Are supported in a direction orthogonal to the Y axis.

As shown in the figure, the antenna 101 is a helical antenna 1 supported on both sides of an insulating holder 113.
01a and a cylindrical sleeve antenna 101b,
Coaxial cable 10 that is inserted through the sleeve antenna 101b
The center conductor 107a of No. 7 is soldered to the base end of the helical antenna 101a, and the outer conductor 107b is soldered to the tip of the sleeve antenna 101b.

As a result, the antenna 101 is electrically connected to the antenna coupling circuit of the PC card 102 via the coaxial cable 107 serving as a power supply line. By inserting the PC card 102 into the slot of the notebook computer 114, the notebook computer is connected. It acts as an antenna using 114 as a mobile data communication device.

The antenna 101 has two axes (X-axis and Y-axis) orthogonal to the fixed PC card 102 by two types of antenna rotation mechanisms 100 and 200.
It can be freely rotated around, can be erected with respect to the notebook computer 114, and can be stored at a predetermined position.

[0016]

However, in the above-described conventional antenna rotating mechanism 100, the center contacts 105a and 106a and the ground contact 105 are provided to the male rotary connector 103 and the female rotary connector 104, respectively.
Since it is necessary to attach b and 106b and to process the contact surfaces so that they continue to contact while rotating relative to each other, it is complicated and expensive.

In particular, when the antenna 101 is rotated about two axes, the use of the rotary connectors 103 and 104 for each of the two rotary mechanisms makes the whole very expensive, and as shown in FIG. In addition, as one of the rotation mechanisms, the antenna rotation mechanism 200 in which the power feeding line 107 is simply inserted through the L-shaped connector 110 is adopted.

However, in the above-described simplified antenna rotation mechanism 200, the base end of the coaxial cable (feed line) 107 is fixed in the female rotary connector 104, and the cylindrical cover is inserted through the antenna 101 connected at the tip side. Since it is fixed to 112, the coaxial cable 107 is twisted when the cylindrical cover 112 is rotated around the Y axis.

In particular, since the L-shaped connector 110 is rotatable with respect to the device-side connector 104A fixed around the Y-axis, each time the antenna 101 is erected or stored,
When the tubular cover 112 is operated to rotate in the same direction, the coaxial cable 107 has a problem that it is broken due to the increased twisting stress.

The present invention has been made in consideration of such conventional problems, and the antenna can be rotated around the axis of rotation with a simple structure, and the feeder line is not broken. An object is to provide a rotating mechanism for an antenna.

[0021]

[Means for Solving the Problems]

According to a first aspect of the present invention, there is provided a rotating mechanism for an antenna, wherein a device-side connector that is restricted from rotating about a rotation axis and a rotating part on one side are rotatably connected to the device-side connector around the rotation axis. The antenna support portion on the side is L-shaped connector bent in a direction orthogonal to the rotation axis, a tubular cover connected to the antenna support portion of the L-shaped connector, and housed in the tubular cover, with respect to the rotation axis. An antenna supported in an orthogonal direction and a tip end portion thereof are connected to the antenna, and a base end portion which is inserted from the tip end portion into the L-shaped connector and pulled out into the device side connector is restrained from rotating around the rotation axis. In the antenna rotation mechanism in which the antenna is rotatable around the rotation axis together with the cylindrical cover, the antenna is rotatably housed in the cylindrical cover and is fed by rotation around the rotation axis of the antenna. On the wire By Jill torque, and wherein the relatively rotating the antenna with respect to the tubular cover.

When the cylindrical cover is rotated around the rotation axis,
The antenna housed in the tubular cover also rotates around the rotation axis, and the feed line whose base end is restricted from rotating around the rotation axis twists, and the antenna twists at a twist angle per unit length in the longitudinal direction. Torque proportional to is applied.

Since the antenna is rotatably housed in the cylindrical cover, when the torque due to the power feed line exceeds the moment due to the static frictional force of the antenna, the power feed line rotates in the twisted direction, and the power feed line is twisted. Does not generate a twisting stress above a certain value.

As a result, even if the cylindrical cover and the antenna are repeatedly rotated around the rotation axis in the same direction, the twisting stress that breaks the power supply line does not occur.

According to a second aspect of the present invention, the rotating mechanism for an antenna is characterized in that the power supply line is composed of a central conductor of a coaxial cable.

The power supply line composed only of the center conductor of the coaxial cable is thinner than that of the case where the entire coaxial cable is used as the power supply line, and a predetermined space is secured between the inner wall surface of the L-shaped connector. Therefore, the torque that rotates the antenna is not reduced by the frictional force that abuts the inner wall surface of the L-shaped connector when the power supply line is twisted, and the rotation of the antenna can reliably prevent the power supply line from being broken.

According to a third aspect of the present invention, there is provided a rotating mechanism for an antenna, wherein a device-side connector that is restricted from rotating about a rotating shaft and a rotating portion on one side are rotatably connected to the device-side connector around the rotating shaft. The antenna support portion on the side is L-shaped connector bent in a direction orthogonal to the rotation axis, a tubular cover connected to the antenna support portion of the L-shaped connector, and housed in the tubular cover, with respect to the rotation axis. An antenna supported in an orthogonal direction and a tip end portion thereof are connected to the antenna, and a base end portion which is inserted from the tip end portion into the L-shaped connector and pulled out into the device side connector is restrained from rotating around the rotation axis. Power supply line,
An antenna rotation mechanism that includes a flexible tube through which a power feed line is inserted so as to be relatively rotatable, and the antenna is rotatable around a rotation axis together with a tubular cover. The antenna is rotatably accommodated in the tubular cover. At the same time, both ends of the flexible tube are fixed to the device-side connector and the antenna, and the antenna is rotated relative to the tubular cover by the torque generated in the flexible tube by the rotation of the antenna around the rotation axis. Characterize.

When the cylindrical cover is rotated about the rotation axis,
A flexible tube whose one end is fixed to the antenna housed in the tubular cover also rotates around the rotation axis, and the other end is fixed to the device-side connector and is restricted from rotating around the rotation axis. Twisting and torque are applied to the antenna in proportion to the twisting angle per unit length along the longitudinal direction of the flexible tube.

Since the antenna is rotatably housed in the tubular cover, when the torque of the flexible tube exceeds the moment due to the static frictional force of the antenna, the flexible tube rotates in the twisted direction. .

The feeding line tends to be twisted by rotation around the rotation axis of the antenna, but the torque of the flexible tube causes the antenna to rotate in the same direction in the tubular cover.
There is no big twist.

As a result, even if the cylindrical cover and the antenna are repeatedly rotated around the rotation axis in the same direction, the power supply line is
Does not break.

According to a fourth aspect of the present invention, in the antenna rotating mechanism, at least a part of the antenna is composed of a cylindrical sleeve antenna, and a plurality of ribs are projected on the inner surface of the tubular cover along the longitudinal direction of the tubular cover. It is characterized in that a plurality of ribs are brought into contact with the cylindrical surface of the sleeve antenna to guide the rotation of the sleeve antenna.

Since the sleeve antenna rotates by contacting a plurality of ribs on the cylindrical surface, the contact area with the cylindrical surface is small and the static friction force is reduced, so that the antenna rotates with a slight torque. Therefore, it is possible to more reliably prevent a large twisting stress from being generated in the power supply line.

According to a fifth aspect of the present invention, there is provided a rotating mechanism of an antenna, wherein the antenna comprises a sleeve antenna and a helical antenna projecting on an extension line of the sleeve antenna via an insulating holder. The center conductor of the cable is connected to the helical antenna, and the outer conductor is connected to the sleeve antenna.

By constructing the feeding line with a coaxial cable and connecting the central conductor to the helical antenna and the outer conductor to the sleeve antenna, the entire antenna is λ / 2.
It functions as a type antenna and is not affected by the ground on the device side to which the other end of the power supply line is connected.

[0037]

BEST MODE FOR CARRYING OUT THE INVENTION An antenna rotating mechanism 1 according to an embodiment of the present invention will be described below with reference to FIGS.
The same configuration as the conventional configuration shown in FIG. 8 is denoted by the same reference numeral, and detailed description thereof will be omitted.

FIG. 1 is a plan view showing an antenna 2 rotatably attached to a PC card 102 in an X-axis and a Y-axis which are orthogonal to each other. The antenna rotating mechanism 1 according to the present embodiment is shown in FIG. , Is used in a rotating mechanism that allows the antenna 2 to rotate around the Y axis.

An antenna rotation mechanism 10 that allows the antenna 2 to rotate about the X axis is composed of a male rotary connector 3 and a female rotary connector 4, and the shape of the housing and the contacts provided in the housing. Although different, they respectively correspond to the conventional female rotary connector 104 and the male rotary connector 103 shown in FIG. 8, and the male rotary connector 3 is different from the female rotary connector 4 attached to the PC card 102. X while maintaining contact between each other's contacts
It is rotatable around its axis.

As shown in an enlarged view in FIG. 3, the male rotary connector 3 is formed in a cylindrical shape which is bent in the Y-axis direction behind a connecting portion for mating connection with the female rotary connector 4, and has an L-shaped connector. 5 is rotatably connected around the Y axis.

In the antenna rotation mechanism 1 which allows the antenna 2 to rotate about the Y-axis, the cylindrical portion of the male rotary connector 3 bent in the Y-axis direction is used as a device-side connector 3A, and the device-side connectors 3A and L are connected to each other. Character connector 5.

The device-side connector 3A is formed in a cylindrical shape with the Y-axis as the central axis, and the ring groove 6 is provided on the outer surface of the cylindrical shape.

The L-shaped connector 5 is composed of a rotating portion 5A protruding in the Y-axis direction and an antenna supporting portion 5B protruding in the X-axis direction, each of which is formed in a cylindrical shape. Engaging projections 7 are provided so as to face toward one side. The engagement protrusion 7 is loosely fitted in the ring groove 6 of the device-side connector 3A, whereby the L-shaped connector 5 is connected to the device-side connector 3A whose rotation about the Y axis is restricted. It is connected so that it can rotate around its axis.

A cylindrical cover 8 is integrally fixed to the antenna supporting portion 5B along the extension line thereof, and the cylindrical cover 8 is formed.
Together with the antenna 2 housed in the cylindrical cover 8
It is rotatable about the Y-axis while standing upright so as to be orthogonal to the axis.

The male rotary connector 3, the L-shaped connector 5 and the tubular cover 8 are formed in a hollow tubular shape, and a coaxial cable 107 serving as a power supply line is provided along the inside thereof.

The base end portion 107B of the coaxial cable 107 is
The central conductor 107a, which is inserted through the inside of the male rotary connector 3 and whose end is peeled and exposed, is attached to the central contact 3a of the male rotary connector 3 and the outer conductor 107b.
Each is connected to the ground contact 3b.

A portion of the coaxial cable 107 which is inserted through the L-shaped connector 5 is covered with a flexible tube 9 formed of an insulating synthetic resin. The material of the flexible tube 9 is preferably the same as or larger than the lateral elastic modulus G of the coaxial cable 107.

The inner diameter of the flexible tube 9 is sufficiently larger than the outer diameter of the coaxial cable 107. Therefore, in the middle thereof, the flexible tube 9 freely rotates relative to each other without being restrained.

As shown in FIGS. 3 and 6, the portion of the flexible tube 9 through which the device-side connector 3A is inserted is flexible by the stopper ring 11 that is press-fitted between the flexible tube 9 and the inner surface of the device-side connector 3A. Cable 10 in the sex tube 9
It is fixed to the device side connector 3A together with 7. As a result, the base end portion 107B of the coaxial cable 107 and the flexible tube 9 are restrained from rotating about the Y axis at the portion of the device side connector 3A.

The antenna 2 housed in the tubular cover 8
As shown in FIG. 2, consists of a helical antenna 2a supported on the tip end side of the insulating holder 12 and a cylindrical sleeve antenna 2b supported on the base end side. Since it is arranged at a constant distance from the inner wall surface, it is rotatable relative to the cylindrical cover 8. In particular, in the present embodiment, as shown in FIG. 4, a plurality of guide ribs 13 extending in the longitudinal direction are provided on the inner wall surface of the cylindrical cover 8 facing the sleeve antenna 2b,
The sleeve antenna 2b is configured to rotate relative to each other while contacting the guide ribs 13. Therefore,
Since the contact area between the cylindrical cover 8 and the sleeve antenna 2b is small and the static frictional force of the sleeve antenna 2b is small,
The inside of the cylindrical cover 8 is relatively rotated by applying a slight torque.

The other end of the flexible tube 9 whose one end is fixed to the device side connector 3A has a cylindrical sleeve antenna 2 at the other end.
It is fixed to the base end of b using an adhesive or the like. Therefore, the entire antenna 2 tends to rotate in the same direction in the tubular cover 8 when the flexible tube 9 is twisted.

Further, the tip portion 107A of the coaxial cable 107 projecting from the flexible tube 9 toward the tip side is inserted into the sleeve antenna 2b so as to be relatively rotatable, and the insulating holder 12 is enlarged as shown in FIG. The central conductor 107a of the coaxial cable 107 that is inserted through the
The outer conductor 107b is solder-connected to the base end (right end in the drawing) of the sleeve antenna 2b and the tip (left end in the drawing) of the sleeve antenna 2b.

As a result, the antenna 2 is electrically connected to the antenna coupling circuit of the PC card 102 using the coaxial cable 107 as a power supply line, and acts as the antenna of the notebook computer 114.

Next, the operation of rotating the antenna 2 thus rotatably mounted around the X and Y axes will be described.

When the antenna 2 is rotated around the X axis, the male rotary connector 3, the L-shaped connector 5, the tubular cover 8 accommodating the antenna 2 and the feed line 107 are entirely rotated around the X axis. Since they rotate integrally with each other, even if they are repeatedly rotated in the same direction, only the power supply line 107 is not twisted.

When the antenna 2 is rotated around the Y axis, the antenna 2 and the power supply line 107 connected to the antenna 2 also rotate around the Y axis as the L-shaped connector 5 and the tubular cover 8 rotate. However, the base end portion 107B of the power supply line 107 is Y
Since it is fixed around the axis, it tries to twist.

At this time, the flexible tube 9 having one end fixed around the Y axis in the device side connector 3A is also twisted as the antenna 2 rotates because the other end is fixed to the antenna 2. Since the flexible tube 9 has a lateral elastic modulus G and an outer diameter larger than that of the power supply line 107, a torque proportional to the twist angle per unit length is mainly generated by twisting the flexible tube 9. To work.

When the rotation angle of the antenna 2 around the Y axis reaches a certain angle, the flexible tube 9 is twisted, and the torque acting on the antenna 2 exceeds the moment due to the static friction force, so that the antenna 2 becomes flexible. The tube 9 rotates in the twisting direction.

As a result, the flexible tube 9 and the power supply line 1
No. 07 does not twist further, and even if the antenna 2 is repeatedly rotated in the same direction, the feed line 107 will not break due to an increase in twist stress.

In the above embodiment, the antenna 2 is rotated mainly by the twist of the flexible tube 9, but the antenna may be rotated by the torque generated by the twist of the feed line 107.

FIG. 7 shows a rotating mechanism 20 of the antenna according to the second embodiment. The rotating mechanism 20 of the antenna uses the feeder as the center conductor 10 of the coaxial cable 107.
7A, only the flexible tube 9, the stopper ring 11, and the sleeve antenna are provided as compared with the configuration of the rotating mechanism 1 of the antenna according to the first embodiment, as is apparent from comparison with FIG. The only difference is that 2b is not provided, and the other configurations are given the same numbers and their explanations are omitted.

In the present embodiment, the antenna 21 is
Since it is composed only of the helical antenna 2a connected to the central conductor 107a of the coaxial cable 107, it functions as a λ / 4 type antenna and may be affected by the ground of the PC card 104 or the notebook computer 114 side. As a simple antenna, it has a sufficient transmitting and receiving function.

When the antenna 21 for accommodating the tubular cover 8 is rotated around the Y-axis, the device-side connector 3A is operated.
A central conductor 107a in which a base end portion 107B is soldered to the central contact 3a and is restricted from rotating around the Y axis.
Is a tip 107 that is soldered to the helical antenna 2a.
Twist with A.

When the antenna 21 is erroneously continued to rotate in the same direction around the Y axis, the central conductor 107a is twisted in proportion to the rotation angle, and the torque acting on the antenna 21 also increases.

When the rotation angle of the antenna 21 around the Y axis reaches a certain angle, the torque applied to the antenna 21 due to the twisting of the central conductor 107a exceeds the moment due to the static frictional force of the antenna 21, and the antenna 21 moves. Rotate in the twisting direction.

As a result, the power supply line 107a is not further twisted, and even if the antenna 21 is repeatedly rotated in the same direction, the power supply line 107 does not break.

In this embodiment, since the antenna 21 is composed of only the helical antenna element 2a,
The static friction force is small, and rotation starts just by applying a small torque.

Further, the feed line 107 is composed of the central conductor 107a.
Therefore, the inner wall surface of the L-shaped connector 5 and the cylindrical cover 8 are thinner than the case where the entire coaxial cable is used as a power supply line.
A sufficient gap is secured between the and. Therefore, the power supply line 107
The contact area with these inner wall surfaces when twisting is small,
The torque for rotating the antenna 21 is not reduced by the frictional force of the power supply line 107 itself.
The antenna 21 can be rotated with a twist angle smaller than that of the above, and the feed line 107 can be reliably prevented from breaking.

In the above-described second embodiment, the antenna 21 is rotated by the torque due to the twist of the central conductor 107a, but the antenna 21 is rotated by the twist of the coaxial cable 107 shown in the first embodiment. It may be one.

Further, the antennas 2 and 21 use the rotating mechanism of the two antennas so as to be rotatable about the two orthogonal axes (X axis and Y axis). However, the rotating mechanism of the antenna according to the present invention is used. 1, 20 can also be used in a rotating mechanism that allows the antenna to rotate around one axis. Further, the antenna rotating mechanisms 1 and 20 according to the present invention can be used as the rotating mechanism of each antenna around two axes without using the rotating mechanism of the rotating connectors 3 and 4.

Further, in the above embodiment, the plurality of ribs 13 are formed on the inner wall surface of the cylindrical cover 8 in order to reduce the frictional force in the rotating direction of the antenna, but the feeder line is damaged by the twisting stress. If the antenna rotates before, it does not necessarily have to be formed.

Further, the antenna is not limited to the helical antenna, but may have various shapes such as a rod antenna.

[0073]

As described above, according to the invention of claim 1, since the antenna is rotated in the twisting direction of the feeder line by the torque due to the twisting of the feeder line, even if the antenna rotates about the axis, The power supply line does not break. Therefore, it is possible to obtain an antenna rotating mechanism that does not disconnect the power supply line with a simple configuration without using an expensive connector combination such as a male rotating connector and a female rotating connector.

According to the second aspect of the present invention, since the feed line is composed only of the central conductor of the coaxial cable, the structure is simpler and a predetermined space is secured between the tubular cover and the inner wall surface of the L-shaped connector. Therefore, the breakage of the power supply line can be reliably prevented.

According to the invention of claim 3, since the antenna is rotated in the twisting direction of the feed line by the torque due to the twist of the flexible tube, the feed line is broken even if the antenna is rotated around the axis. There is no. Therefore, it is possible to obtain an antenna rotating mechanism that does not disconnect the power supply line with a simple configuration without using an expensive connector combination such as a male rotating connector and a female rotating connector.

According to the invention of claim 4, since the static frictional force of the antenna is reduced, the antenna starts to rotate in the twisting direction with a smaller twisting angle of the flexible tube. Therefore, it is possible to prevent the damage of the power supply line more reliably by rotating the antenna before the twisting stress that breaks the power supply line occurs.

According to the invention of claim 5, since the entire antenna acts as a λ / 2 type antenna, excellent antenna characteristics which are not affected by the ground on the device side can be obtained.

[0078]

[Brief description of drawings]

FIG. 1 is a partially omitted plan view showing a mounting state of an antenna 2 used in a rotation mechanism around an Y-axis of a rotation mechanism 1 for an antenna according to the present invention.

FIG. 2 is a transverse cross-sectional view showing an antenna 2 rotatably attached by an antenna rotating mechanism 1.

FIG. 3 is an enlarged cross-sectional view of an essential part showing an essential part of an antenna rotation mechanism 1.

FIG. 4 is a vertical sectional view cut at a position of a sleeve antenna 2b.

FIG. 5 is an enlarged transverse cross-sectional view of a main portion showing an enlarged tip portion 107A of a coaxial cable 107.

FIG. 6 is a perspective view of the flexible tube 9 showing a state in which the L-shaped connector 5 is omitted and both ends are fixed.

FIG. 7 is a rotation mechanism 20 of the antenna according to the second embodiment.
It is a transverse cross-sectional view showing an antenna 21 rotatably attached.

FIG. 8 is a cross-sectional view showing an antenna 101 which is a combination of conventional antenna rotation mechanisms 100 and 200 and is rotatably attached about two axes.

[Explanation of symbols]

1 Rotating Mechanism of Antenna According to First Embodiment 2 antenna 2a helical antenna 2b sleeve antenna 3A Device side connector 5 L-shaped connector 5A rotating part 5B Antenna support 8 tubular cover 9 Flexible tube 12 Insulating holder 13 ribs 20 Antenna Rotation Mechanism According to Second Embodiment 21 antenna 107 power supply line (coaxial cable) 107a Center conductor of coaxial cable 107b outer conductor 107A tip 107B base end

   ─────────────────────────────────────────────────── ─── Continued front page    F term (reference) 5J046 AA01 AA02 AA10 AB06 RA03                 5J047 AA01 AA02 AA10 AB06 EF04                       EF05

Claims (5)

[Claims] 1. A device-side connector (3A) restrained from rotating around a rotation axis (Y-axis) and a rotating part (5A) on one side are connected to the device-side connector (3A) by a rotation shaft (Y-axis). An L-shaped connector (5) that is rotatably connected around and has an antenna support portion (5B) on the other side bent in a direction orthogonal to the rotation axis (Y-axis), and antenna support for the L-shaped connector (5) A tubular cover (8) connected to the portion (5B), an antenna (2, 21) housed in the tubular cover (8) and supported in a direction orthogonal to the rotation axis (Y axis), The distal end portion (107A) is connected to the antenna (2, 21), the distal end portion (107A) is inserted through the L-shaped connector (5), and the proximal end portion (107B) pulled out into the device side connector (3A) is , A power supply line (107) constrained from rotating about a rotation axis (Y axis), An antenna rotation mechanism in which an antenna (2, 21) is rotatable together with a tubular cover (8) around a rotation axis (Y axis). The antenna (2, 21) is rotatable within the tubular cover (8). The antenna (2, 21) is housed in the
21) A rotating mechanism for an antenna, characterized in that 21) is rotated relative to the cylindrical cover (8). 2. The rotating mechanism for an antenna according to claim 1, wherein the feed line is composed of a central conductor (107a) of the coaxial cable (107). 3. A device-side connector (3A) which is restricted from rotating about a rotation axis (Y-axis) and a rotating part (5A) on one side are connected to the device-side connector (3A) by a rotation shaft (Y-axis). An L-shaped connector (5) that is rotatably connected around and has an antenna support portion (5B) on the other side bent in a direction orthogonal to the rotation axis (Y-axis), and antenna support for the L-shaped connector (5) A tubular cover (8) connected to the portion (5B), an antenna (2) housed in the tubular cover (8) and supported in a direction orthogonal to the rotation axis (Y axis), and a tip portion (107A) is connected to the antenna (2), is inserted through the L-shaped connector (5) from the tip (107A), and is drawn out into the device side connector (3A) (107A).
B) includes a power supply line (107) whose rotation is restricted about a rotation axis (Y axis), and a flexible tube (9) through which the power supply line (107) is relatively rotatably inserted. An antenna rotation mechanism in which an antenna (2) is rotatable around a (Y-axis) together with a tubular cover (8). The antenna (2) is rotatably accommodated in the tubular cover (8), and a device is provided. By fixing both ends of the flexible tube (9) to the side connector (3A) and the antenna (2), the torque generated in the flexible tube (9) by rotating the antenna (2) around the rotation axis (Y axis). An antenna rotation mechanism, characterized in that the antenna (2) is rotated relative to the tubular cover (8). 4. At least a part of the antenna (2) is formed of a cylindrical sleeve antenna (2b), and a plurality of antennas are provided on the inner surface of the cylindrical cover (8) along the longitudinal direction of the cylindrical cover (8). Ribs (13) of the sleeve antenna (2b) are formed on the cylindrical surface of the sleeve antenna (2b).
The rotation mechanism of the antenna according to claim 3, wherein the sleeve antenna (2b) is guided by rotating the sleeve antenna (3). 5. The antenna (2) comprises a sleeve antenna (2b) and a helical antenna (2a) protruding through an insulating holder (12) on an extension line of the sleeve antenna (2b), and a feed line is provided. A coaxial cable (107), wherein the central conductor (107a) of the coaxial cable (107) is connected to the helical antenna (2a) and the outer conductor (107b) is connected to the sleeve antenna (2b). The rotation mechanism of the antenna according to 4.