JP4350541B2 - ANTENNA DEVICE AND WIRELESS DATA COMMUNICATION DEVICE HAVING THE ANTENNA DEVICE - Google Patents

Description

  The present invention relates to a wireless data communication apparatus that performs data communication by wirelessly connecting an information device such as a computer and an external apparatus, and more particularly to an antenna apparatus thereof.

Conventionally, a PC card type wireless data communication card has been provided. In general, an antenna is built in, but in order to achieve higher wireless performance, an external antenna that can be attached and detached is also provided. (For example, see Patent Document 1)
FIG. 13 shows an external antenna for this conventional wireless data communication card. The external antenna 901 includes an antenna body 903 and an antenna base 902. The antenna base 902 is made of rubber, and is provided with a suction cup for adsorbing to an object to which the antenna is to be attached. An antenna mounting groove 904 for inserting and attaching the antenna main body 903 is provided on the upper surface. The antenna main body 903 is a whip antenna (rod antenna), and the antenna main body 903 is inserted into the antenna mounting groove 904 of the antenna base 902 and fixed to the antenna base 902.

When the antenna body 903 is attached to the antenna base 902 and the antenna base 902 is attached to the display surface of the notebook PC 905, for example, the external antenna 901 is fixed to the notebook PC 905.
JP 2002-325006 A (FIG. 10)

  However, in such a conventional antenna device, since it is adsorbed by a suction cup, it cannot be attached to a portion other than a smooth surface such as a glass window. When the display surface of the notebook PC is a smooth surface, it can be attached, but it is originally a part for displaying. Therefore, when another object is attached, a part of the display surface is hidden, which is not preferable. If it is non-glossy, it cannot be fixed with a suction cup. Moreover, when attaching to the housing | casing of a notebook PC, the wrinkles etc. are often formed for the housing | casing design, and it cannot necessarily adsorb | suck a suction cup. Furthermore, although it is necessary to adjust the position where an antenna is arrange | positioned according to the receiving condition of an electromagnetic wave, since the installation place is restrict | limited for said reason, it was difficult to obtain desired sensitivity.

  In addition, the conventional antenna base and antenna body are fixed by adopting a method of inserting into the mounting hole or mounting groove, so that the posture relationship between them is fixed, and this also makes it impossible to freely position the antenna. It is one of the factors.

  The present invention has been made to solve the above-described problem of the conventional antenna apparatus, that is, the problem that the arrangement position and orientation of the antenna body cannot be freely set.

  The present invention has been made in order to solve the above-described problems of the conventional antenna device. The main configuration of the present invention is as follows.

  That is, an antenna device according to the present invention is an antenna device that includes a clip portion having a spring property and an antenna portion, and the clip portion holds the object to be locked by sandwiching the object to be locked. The clip portion includes a first portion having a first surface that faces the locked body, and a second portion that is spaced apart from the first surface and faces the locked body. A second portion having a first surface and a first portion connected to the first and second portions and extending so that the first and second surfaces are resistant to displacement in a direction away from each other. A third portion having a spring property; and a first engagement portion provided in at least one portion of the third portion, and the antenna portion includes the first engagement in at least one portion. It has the 2nd engaging part engaged with a part, It is characterized by the above-mentioned.

  In the antenna device according to the present invention, the object to be locked is sandwiched and fixed between the first part and the second part using the spring property of the third part. For this reason, the antenna device can be easily attached to and detached from the locked object. Moreover, since it does not depend on the state of the surface of the object to be locked, it can be locked to any part, whether it is a smooth surface or a non-smooth surface. For this reason, there is a high degree of freedom with respect to the arrangement position and orientation of the antenna unit, and it is possible to set an appropriate state with respect to the radio wave reception status, which greatly contributes to the improvement of the wireless performance of the data communication apparatus.

  Hereinafter, an antenna device according to the present invention and a wireless data communication device including the antenna device will be described in detail with reference to the drawings.

  1A and 1B are two views of an antenna device according to the present invention, in which FIG. 1A is a front view and FIG. 1B is a side view. The antenna device 1 includes a clip part 2 and an antenna part 3.

2A and 2B are two views of the clip portion 2, wherein FIG. 2A is a front view and FIG. 2B is a side view. The clip part 2 has a first part 21 and a second part 22 integrally connected by a third part 23 and a fourth part 27, and the shape of the side surface is substantially “no” as a whole. (In FIG. 2, it is the reverse “no” character). The clip portion 2 is made of an elastic material such as plastic or a metal plate and has a spring property as a whole. In particular, the spring property of the third portion 23 functions functionally. The first surface 21a of the first portion 21 and the second surface 22a of the second portion 22 are opposed to each other, and a first elastic body 26a such as rubber or sponge is provided on the first surface 21a. Similarly, a second elastic body 26b such as rubber or sponge is bonded to the second surface 22a. Although the first surface 21a and the second surface 22a are statically arranged at a constant interval, the interval can be opened by the spring property of the third portion 23. When the interval is increased, a force is generated in a direction in which the first surface 21a and the second surface 22a approach each other, and the object to be locked can be sandwiched by this force. The 4th site | part 27 is provided with the 1st rail 24 for attaching the antenna apparatus 1, and the 2nd rail 25 is similarly provided in the 3rd site | part.
FIG. 3 is a cross-sectional view taken along line AA of the second rail 25 of FIG. 2 and a cross-sectional view taken along line BB of the first rail 24. As shown in FIG. 3, the first and second rails 24 and 25 include rail base portions 24a and 25a and rail head portions 24b and 25b. The rail base 24 a is connected to the fourth part 27 and the rail base 25 a is connected to the third part 23. Further, the rail head portions 24b and 25b are connected to surfaces opposite to the surfaces connected to the third portion 23 and the fourth portion 27 of the rail base portions 24a and 25b. The rail heads 24b and 25b are wider than the rail bases 24a and 25a, and have the same cross-sectional shape as rails used in railways and the like.
As shown in FIG. 3, the second rail 25 is provided on the surface of the third portion 23 such that the longitudinal direction thereof is the same as the longitudinal direction Z of the third portion 23.

The cross section of the first rail 24 is on the surface of the fourth portion 27 so that the longitudinal direction is the same as the X direction orthogonal to the longitudinal direction Z of the second rail 25 as shown in FIG. Is arranged.
As will be described later, these rails are for detachably attaching the antenna unit 3 and determining the posture of the antenna unit 3. Therefore, for example, one of the first rail 24 and the second rail 25 may be used, or two or more may be used to increase the degree of freedom of posture. For example, the third rail may be provided on the surface of the fourth portion 27 together with the first rail 24 in the same direction as the X direction and the Y direction perpendicular to the Z direction.

  4A and 4B are two views of the antenna unit 3, wherein FIG. 4A is a front view and FIG. 4B is a side view. The antenna unit 3 includes an antenna main body 31 and an antenna base 32. The antenna main body 31 has an antenna conductor disposed inside, and the outside thereof is covered with a coating such as plastic or hard rubber.

The antenna base 32 is provided with a rail guide 34 for engaging with the first rail 24 or the second rail 25 provided in the clip portion 2. The structure of the rail guide 34 will be described with reference to FIG. 5 is a cross-sectional view of the antenna base 32 including the rail guide 34 taken along the line CC in FIG. A cavity 34a is provided in the antenna base 32, and a rail guide 34 is provided in the opening so as to narrow the width of the opening. The shape of the space sandwiched between the cavity 34a and the rail guide 34 is substantially equal to the cross section of the first rail 24 or the second rail 25, and these rails are inserted.
The width of the cavity 34a is a value obtained by adding a small value to the widths of the head portions 24b and 25b of these rails, and the width of the space sandwiched between the rail guides 34 is a value obtained by adding a small value to the width of the rail base portions 24a and 25a. The value should be easily inserted. The cavity 34 a and the rail guide 34 are provided such that the longitudinal direction thereof is the same as the longitudinal direction Z of the antenna body 31.

  As shown in FIG. 5, the cavity 34 a and the rail guide 34 are provided at two locations facing both surfaces of the antenna base 32. Since the second place is for increasing the degree of freedom for attaching the antenna part 3 to the clip part 2, it may be provided at one place or two or more places as required. In the illustrated embodiment, the two cavities 34a and the rail guides 34 are provided in the same Z direction, but the other one may be provided in the Y direction orthogonal to the Z direction. Although difficult in the illustrated embodiment, the antenna base 32 can be provided in the X direction perpendicular to the Y direction and the Z direction by appropriately changing the shape of the antenna base 32. Moreover, you may provide not only in an antenna base but in the antenna main body 31 side.

  The antenna feed line 33 disposed on the antenna base 32 is connected to the antenna conductor inside the antenna unit 3, and a connector (not shown) is provided at the other end to be connected to the wireless data communication apparatus main body. It has become so.

  Since the rail and the rail guide described above exhibit the effects of the invention if they are provided in pairs with the clip portion and the antenna portion, the rail guide may be provided on the clip portion 2 side and the rail may be provided on the antenna portion 3 side. .

  Next, a usage pattern of the antenna device 1 according to the present invention will be described with reference to FIG. First, the second rail 25 provided in the clip portion 2 is inserted into the cavity 34 a provided in the antenna portion 3, and the antenna portion 3 is attached to the clip portion 2. FIG. 6 shows such a state of attachment.

  In this state, the interval between the first portion 21 and the second portion 22 of the clip portion 2 is widened, and the locked body 9 is sandwiched between them. In this state, the first portion 21 and the second portion 22 are receiving a force in a direction in which the distance between the first portion 21 and the second portion 22 is reduced by the spring property of the third portion 23, so that the antenna device 1 is locked by this force. 9 can be fixed. The locked body 9 is a liquid crystal display panel housing such as a notebook personal computer. Since the first elastic body 26 a and the second elastic body 26 b are provided in the first part 21 and the second part 22, the frictional force between these elastic bodies and the locked body 9 is used. Thus, the antenna device 1 can be more securely locked to the locked body 9. Further, the elastic body serves as a buffer and does not damage the locked body 9.

  The distance between the first part 21 and the second part 22 can be expanded to such an extent that the clip part 2 does not break. For this reason, as shown in FIG.6 (b), the antenna apparatus 1 can be latched also with respect to the to-be-latched to-be-latched body 9a. Conversely, by narrowing the interval between the first portion 21 and the second portion 22 in the static state, it is possible to lock even a thinner object to be locked. In addition, since the clip part 2 is integrally formed of the same material, the clip part 2 has any part, and the spring part of all of these parts may be expected. Of the part, the second part, and the third part, the part to which the antenna unit 3 is attached is a part that determines the posture, so that these parts are displaced with respect to the force when the locked body is locked. Is preferably kept small. For that purpose, for example, the portion of the third portion 23 that is connected to the second portion 22 is made softer by a method such as making the portion 23a thinner than the other portions, and the displacement is increased at this portion. It is more preferable to keep it.

  Next, a second usage pattern will be described with reference to FIG. As shown in FIG. 2, the first rail 24 of the clip portion 2 is provided in the X direction, that is, in a direction perpendicular to the side surface of the clip portion 2. Therefore, when the antenna unit 3 is attached to the first rail 24, the antenna unit 3 can be held vertically by placing the side surface of the clip unit 2 on a table or the like as shown in FIG. Moreover, you may latch to a to-be-latched body in this state.

  As mentioned above, although the antenna apparatus based on this invention was demonstrated, it is not limited to these Examples, A various change is possible in detail. Hereinafter, these changes will be described.

In the side surface shapes of the first surface of the first part and the second surface of the second part, it is possible to form one in a substantially arc shape and the other in a straight line shape. In FIG. 8, the second surface 22a of the clip portion 2a is linear and is the same as the embodiment shown in FIG. 2, but the first surface 211a of the first portion 211 is changed to the second surface 22a. It is in the shape of an arc that is convex.
According to the shape shown in FIG. 8, when locked to a thin object to be locked as shown in FIG. 9 (a), and to a thick object to be locked as shown in FIG. 9 (b). When locked, even if the angular relationship between the first surface 211a and the second surface 22a changes, the first surface 211a always has a line contact with the object to be locked because it is arcuate. become. For this reason, the first surface 211a and the second surface 22a can stably come into contact with the object to be locked regardless of the thickness of the object to be locked, and the antenna device can be securely attached to the object to be locked. It can be locked. In addition, about the site | part made into circular arc shape, the 2nd surface 22a side may be sufficient contrary to this Example.

  Next, the change which changes the spring property of a 3rd site | part is demonstrated. When the thickness of the to-be-latched body is always thick, it is locked in a state where the spring property is always strong, which may not be preferable for the to-be-latched body. In such a case, there is a mechanism for weakening the spring property of the clip portion. As shown in FIGS. 10A, 10B, and 10C, a folding portion 23b is provided at a connection portion between the second portion 22 and the third portion 23c of the clip portion 2b, and the folding portion 23b is folded. By taking it, the width of the part is narrowed and the spring property is weakened. A boundary portion 23d between the folding portion 23b and the clip portion 2b main body portion is configured to be thinner than other portions, and generates a spring property integrally with the main body portion during normal use. When always locking to a thick locked body, the user applies a force to the folding portion 23b and folds it off from the boundary portion 23d, thereby reducing the width of this portion and reducing the spring force. Decrease.

  Next, an embodiment of a wireless data communication apparatus provided with these antenna devices will be described. As shown in FIG. 11, the wireless data communication device 100 includes a wireless data communication device main body 110 and an antenna device 1.

  The antenna device 1 is based on the present invention, and details thereof are as already described.

  The wireless data communication device main body 110 is a card-like device called a PC card (registered trademark) or a CF card (registered trademark). A wireless communication circuit and a computer interface based on the PC card standard or the CF card standard are provided inside the card-shaped casing 111. A circuit board on which a circuit is mounted is incorporated (not shown). A connector 112 for connecting to a computer is provided at one end of the housing, and this connector 112 is electrically connected to the circuit board. Further, an external antenna connector 36 is provided at the other end of the casing 111, and a connector 35 provided at the tip of the feeder line 33 of the antenna unit 1 is connected thereto. The wireless communication circuit is based on, for example, a PHS (registered trademark) telephone standard, and performs wireless communication with a base station.

  A usage pattern of the wireless data communication apparatus 100 configured as described above is shown in FIG. The wireless data communication apparatus main body 110 is inserted into the PC card adapter 119 and inserted into the PC card slot 121 of the personal computer 120 in that form. The PC card adapter 119 is for adapting the shape in order to insert the CF card into the PC card slot. The wireless data communication apparatus main body 110 is electrically connected to the PC card interface of the personal computer 120 via the PC card adapter 119.

  The antenna device 1 is first coupled by the antenna unit 3 and the clip unit 2, and the display of the personal computer 120 is sandwiched and locked by the clip unit 2 in that form. Then, the connector 35 provided at the tip of the feeder line 33 is connected to the external antenna connector 36 of the wireless data communication apparatus main body 110.

  In this state, the wireless data communication apparatus 100 performs data communication between the personal computer and the external wireless station. The antenna device 1 according to the present invention can easily change the locking position and posture, and can improve the wireless performance.

It is a two-view figure of the antenna device based on this invention, (a) is a front view, (b) is a side view. It is a two-view figure of a clip part, (a) is a front view, (b) is a side view. It is AA sectional drawing of a 2nd rail, and BB sectional drawing of a 1st rail. It is a two-view figure of an antenna part, (a) is a front view, (b) is a side view. It is CC sectional drawing of an antenna part. It is explanatory drawing which shows the usage pattern of an antenna apparatus. It is explanatory drawing which shows the other usage pattern of an antenna apparatus. It is a side view of the clip part by other examples of an antenna device. It is explanatory drawing which shows the usage condition of the other Example of an antenna apparatus. It is a three-plane figure of the clip part by other Examples of an antenna device, (a) is a front view, (b) is a side view, (c) is a bottom view. It is explanatory drawing of the radio | wireless data communication apparatus based on this invention. It is explanatory drawing which shows the usage condition of the radio | wireless data communication apparatus based on this invention. It is explanatory drawing which shows the usage pattern of the conventional antenna device.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Antenna apparatus 2, 2a, 2b Clip part 21, 211 1st site | part 21a, 211a 1st surface 22 2nd site | part 22a 2nd surface 23 3rd site | part 23b Folding part 24, 25 Rail 24a, 25a Rail base parts 24b, 25b Rail head parts 26a, 26b Elastic body 3 Antenna part 31 Antenna body 32 Antenna base part 33 Antenna feed line 34 Rail guide 35 Connector 100 Data communication device 110 Data communication device body

Claims (4)

An antenna device comprising a clip portion having a spring property and an antenna portion, the clip portion holding the antenna body by sandwiching the object to be locked,
The clip portion is formed by bending one continuous plate-like member,
A first portion having a first surface that is an inner peripheral side plane portion of the end portion of the plate-like member and faces the locked body;
The plate-like member extends from the other end of the plate-like member in a direction substantially opposite to the direction in which the plate-like member extends from the first portion, and is disposed so as to face and separate from the first surface. A second portion having a second surface which is an outer peripheral side plane portion of the other end portion of the plate-like member and faces the locked body;
A third part and a fourth part having spring properties are connected so that the first and second parts are connected and a resistance is generated against displacement in a direction in which the first and second surfaces are separated from each other. Have
The outer peripheral plane portions of the third and fourth portions are perpendicular to the longitudinal direction of the plate member and the first engagement portion that locks the antenna portion in a direction parallel to the longitudinal direction of the plate member. A second engaging portion that locks the antenna portion in any direction,
The antenna unit includes an antenna apparatus characterized by having said first engaging portion, or the third engagement portion to be engaged with the second engagement portion. The first engaging portion or the second engaging portion is a convex shape composed of a rectangular parallelepiped head having a predetermined width in the longitudinal direction and a base formed narrower than the head. Rails,
The said 3rd engaging part has a concave rail guide provided so that the said head and base may form the rectangular parallelepiped-shaped space | gap in which a longitudinal direction is inserted. Antenna device.   3. The antenna device according to claim 1, wherein an elastic member is provided on at least one of the first surface and the second surface. 4. A connector for connecting to an external device;
A wireless communication circuit connected to the connector and performing wireless communication between the wireless station and the external device by performing wireless communication with an external wireless station;
A wireless data communication apparatus main body including an antenna connector connected to the wireless communication circuit and connected to an external antenna; and
A wireless data communication device comprising the antenna device according to claim 1, further comprising a connector for connecting to the antenna connector.

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