JP2947211B2 - Band and wrist-mounted device using the same - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a band in a wrist-worn device represented by a wristwatch-type wireless communication device or the like. More specifically, the present invention relates to an improvement in an arm band of a type in which a conductive member such as a loop antenna used for communication in such an arm-worn device is incorporated.

[0002]

2. Description of the Related Art Various types of wristwatch-type electronic devices having an arm band with a built-in conductive member are known. As shown in FIG. 9, a wristwatch-type wireless communication device called a pager, which is a typical example, basically includes a communication device main body 1 and an arm band 2 for attaching the main body to an arm. ing. The arm band 2 is composed of a pair of arm band pieces 2 attached in the directions of 12 o'clock and 6 o'clock of the wristwatch.
A and 2B. Each arm band piece is generally made of silicone resin, and incorporates antenna pieces 3A and 3B made of a thin stainless steel plate. A middle clasp piece 4A is attached to the tip of one arm band piece 2A, and this clasp piece is connected to the tip of the antenna piece. At the tip end of the other arm band piece 2B, a middle clasp piece 4B is attached so as to be slidable in the longitudinal direction, and the middle clasp piece and the antenna piece are connected to the middle clasp piece. It is formed by contacting a protruding portion 4b formed on the inside of the piece and an antenna exposed portion 2b opened at a predetermined interval on the back surface of the arm band piece 2B. The loop antenna 3 is constituted by each antenna piece by connecting the middle fastener pieces 4A and 4B.

As shown in FIGS. 10 (A) and 10 (B), the antenna ends 3A and 3B are respectively connected to the communication device main body 1 at the base ends thereof.
Are attached. Generally, these end pieces are formed of a metal material, and are fixed to the tip of the antenna piece by welding or pins.

On the other hand, each arm band piece 2 having such a configuration
A and 2B are generally manufactured by the injection molding method as follows. First, the antenna piece is arranged in the mold, and the layer on the front or back side of the arm band is injection-molded. Next, the other layer is injection molded in the same manner. The arm band piece thus obtained has a state in which the antenna piece is built almost at the center of the silicon resin layers on the front side and the back side.

[0005]

However, the conventional wristband with a built-in conductive member has the following problems to be solved in terms of strength.

That is, in the prior art, the antenna piece is cut from a long rolled member, but from the viewpoint of yield, as shown in FIG.
The antenna piece is cut off as shown by the broken line. Therefore, there is a drawback that the antenna piece is easily broken in the width direction (rolling direction) due to the bending stress that repeatedly acts in the general portable mode.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems of the conventional band with a built-in conductive member of a wrist-mounted device.

[0008]

In order to solve the above-mentioned problems, in the present invention, in order to increase the durability of the conductive member, the band is rolled from a long sheet material roll-formed. The cutout is used so as to be different from the width direction. Then, it is preferable to use such a band for an arm-mounted device.

[0009]

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings.

(Overall Configuration) FIGS. 1, 2 and 3 are an external view, a longitudinal sectional view, and a rear view of a wireless communication device to which the present invention is applied, which is developed on a plane. As shown in these figures, the wristwatch-type wireless communication device 1 of this example
Is basically composed of a wristwatch main body 3 in which a communication unit 2 is built and an arm band 4 attached to the main body 3. Since the configuration of the communication unit 2 can be the same as that conventionally used, the description thereof is omitted in this specification.

The arm band 4 has a pair of arm band pieces 5 and 6 attached to both sides of the wristwatch main body 3 (sides at 12 o'clock and 6 o'clock of the wristwatch), and a middle clasp for connecting these tips to each other. 7. The metal clasp 7 is a metal piece 8 fixed to the tip of one of the arm band pieces 5 and a metal piece 9 that is slidably attached to the tip side of the other arm band piece 6 so that the metal piece 8 can be detachably connected. It is composed of

The arm band piece 5 itself is wrapped between a surface layer member 51 facing the front side when attached to the wearer's arm, a backing member 52 contacting the wearer's arm side, and the like. And an antenna plate 11 made of stainless steel as a conductive member. Similarly, the other arm band piece 6 itself also includes a surface member 61, a backing member 62,
It is composed of an antenna plate 12. Each antenna piece 1
Reference numerals 1 and 12 are connected to each other through the middle fastener 7 to form a loop antenna of the wireless communication device.

(Structure of Arm Band Piece 5) Next, the arm band piece 5 of the present embodiment will be described in detail with reference mainly to FIGS. FIG. 4 shows the structure of the arm band piece 5. The arm band piece 5 of this example uses leather, which is a decorative material, as the surface layer member 51, and uses a molded product of urethane resin as the backing member 52. The urethane resin backing member 52 has a recess 52a extending in the longitudinal direction. By forming the concave portion 52a in this manner,
While incorporating a rigid stainless steel metal antenna plate, sufficient flexibility required for an arm band is ensured. Further, by forming the concave portion 52a continuous in the longitudinal direction as described above, sweat, dirt, and the like hardly accumulate in the concave portion, and a good band wearing feeling can be obtained.

Here, as shown in FIG.
In (2), a wraparound portion 52b that covers the side surface 51a of the leather, which is the surface member 51, is formed on both sides of the urethane resin layer that is the backing member. In this example, after the backing member made of urethane resin is injection-molded into such a cross-sectional shape, the antenna plate 11
Further, the surface member 51 made of leather is joined to each other by an adhesive or by a primer treatment. As described above, in the arm band piece 51 of this example, since the wraparound portion 52b made of injection-molded urethane resin appears on the outer peripheral side surface, it is possible to cover the fibrous material or the like of the leather cross section, and to provide a high-grade appearance. Can be secured. Also, the end 11a of the built-in antenna plate 11 is covered by the wraparound portion 52b formed as above and is made of urethane resin having a higher elasticity than silicon resin. There is no risk of resin breakage or tearing from the periphery of the antenna, which is one of the weak points of the wristband incorporating the elastic member.

Next, as shown in FIGS. 4C and 4D, the antenna plate 11 disposed inside the arm band piece 51 is
It is formed from an elongated rectangular stainless steel plate as a whole. The base end of the antenna plate 11 is bent in a U-shape on the back side to form a bent portion 11b, to which a terminal pin 11c for connection with the communication device main unit 2 is welded. ing. The entire bent portion 11b and the terminal pin 11c
The end piece 111 is integrally attached so as to wrap the base end of the end piece 111. A terminal plate 112 for connection with the middle metal fitting 8 is welded to the rear surface of the front end of the antenna plate 11.

Next, FIG. 7 shows an enlarged portion of the end piece 111 attached to the base end of the antenna plate 11. The end piece 111 of the present embodiment is formed integrally with the bent portion 11b at the base end of the antenna plate 11 using an ABS resin or a polycarbonate resin having a higher strength than the urethane resin of the backing member 52. The end piece portion is conventionally formed of a metal material. However, if the end piece is formed of a metal material, a stray capacitance is added to the antenna plate 11. Since it is easy to be thinner than the portion, there are problems such as a decrease in insulation properties and a high manufacturing cost. However, as in this example,
Such a problem is solved by forming the end piece 111 from an insulating plastic product. In addition, the end piece is abolished and all are made of band material (urethane resin).
However, in this case, there is a possibility that necessary fixing strength with the case cannot be secured. On the other hand, when an ABS resin or a polycarbonate resin is used as in this example, the strength required for this portion can be sufficiently secured, which is preferable.

In this embodiment, the antenna plate 11 is cut out from a rolled stainless steel plate as follows. That is, FIG.
As shown in (A) or (B), the antenna plate 11 of this example has a state in which the rolling direction (arrow A) of the elongated rolled stainless steel plate 11A does not match the width direction (arrow B) of the arm band. It is cut out to. For example, FIG.
In (A), the antenna plate 11 is cut out in a state inclined with respect to the rolling direction A as shown by a broken line. In FIG. 8B, the antenna plate 11 is cut out as indicated by a broken line so that the band width direction is orthogonal to the rolling direction. On the contrary,
Conventionally, as shown in FIG. 8C, the antenna plate is cut out in a state where the band width direction matches the rolling direction in terms of yield. When the antenna plate is cut out in such a state, the antenna plate is easily broken in the width direction, and there is a problem in durability in general portable use.
In this example, since the antenna plate 11 is cut out so that the rolling direction does not coincide with the band width direction, there is an advantage that the antenna plate 11 is less likely to break in the width direction due to long-term use.

Next, the structure of the other arm band piece 6 will be described. The configuration of the arm band piece 6 is basically the same as the arm band piece 5 described above. That is, as shown in FIG. 5, a surface member 61 made of leather and a backing member 6 made of a urethane resin molded product are provided.
2 and a stainless steel antenna plate 12 wrapped therebetween.

The urethane resin backing member 62 has a recess 62a extending in the longitudinal direction. However, in the arm band 6, the antenna plate 12 is covered with a thin urethane resin layer at the bottom of the concave portion 62a from the base end to a position in the middle of the longitudinal direction. The antenna plate 12 is in an exposed state in the recessed portion. A middle clasp piece 9 is slidably attached to the portion of the arm band 6 where the exposed portion 12d of the antenna plate is formed.
As can be clearly seen from FIGS.
An antenna connecting portion 9a projecting from the exposed portion 12d of the antenna plate is formed on the back surface of the antenna plate, and the connecting portion 9a is always in contact with the exposed portion 12d of the antenna plate. Therefore, the middle fastener 9 can be slid to any position in the longitudinal direction on the exposed portion 12d of the antenna plate. As a result, complete free adjustment becomes possible, and the length of the arm band 4 can be adjusted to exactly match the thickness of the arm of the wearer.

In this way, the metal antenna plate made of a highly rigid stainless steel is built in the rear surface of the arm band piece 6 by removing the meat as much as possible by the antenna exposed portion 12d and the urethane concave portion which are continuous in the longitudinal direction. However, sufficient flexibility required for the arm band is also ensured. Further, since the antenna exposed portion 12d continuous in the longitudinal direction is formed as described above, the recess 12d is not sealed by the arm when the antenna is mounted on the arm. Therefore, sweat, dirt, and the like do not adhere to the antenna plate, and do not cause deterioration in conductivity or function.

As with the arm band piece 5 shown in FIG. 6, the arm band piece 6 has a leather member which is a surface member 61 over the antenna plate 12 on both sides of the urethane resin layer which is a backing member. A wraparound portion 62b that covers the side surface of is formed. Furthermore, the joining between the backing member 62 and the antenna plate 12 and the joining between the surface layer member 61 and the antenna plate 12 are performed by a primer treatment or an adhesive.

As shown in FIGS. 5C and 5D, the antenna plate 12 disposed inside the arm band piece 6 is similar to the antenna plate 11 except that the terminal plate 112 is not attached to the tip. A bent portion 12b is formed on the base end side of the base portion, and a terminal pin 12c for connection with the communication device main unit 2 is welded to the bent portion 12b. ing. Also, the bent portion 12b
The end piece 121 is integrally mounted so as to wrap the entirety of the terminal pin 12c and the base end of the terminal pin 12c.
The configuration of the end piece 121 is the same as that of the above-described end piece 111 (see FIG. 7).

Further, as shown in FIG. 8 (A) or (B), the antenna plate 12 is also cut out so that the rolling direction of the long rolled stainless steel plate does not coincide with the width direction of the arm band. is there.

The wristband 4 of the wristwatch-type communication device 1 according to the present embodiment configured as described above has the following advantages. First,
Since the surface members 51 and 61 of the arm band 4 are made of leather,
A classy wristband can be realized. In addition, a wrap portion 52a is provided around the end of the urethane resin backing members 52, 62,
62a are formed, and the antenna plate 11, 1
Since it is made to cover from the end of 2 to the side surface of the surface layer members 51 and 61, the fiber etc. of a leather cross section can be covered. Therefore, the appearance quality of the arm band 4 is improved. Furthermore, since the wraparound portion is formed in this manner, the mating surface of the surface layer member and the backing member is not formed at the end of the antenna plate, so that there is no adverse effect that such a portion is torn.

Further, in the arm band 4 of the present embodiment, since the backing members 52 and 62 are made of urethane resin, they are superior in elasticity and wear resistance as compared with conventional ones made of silicone resin. The antenna piece cuts the resin, further damages the wearer's arm, and erases fine design patterns such as grain on the band surface due to wear of the sleeves of the jacket etc. There is nothing. Moreover,
In this example, the concave portions 52a, 62 are formed on the surfaces of the backing members 5, 62.
Since a is formed to partially reduce the thickness of the urethane resin layer, the flexibility required for the arm band can be secured.
Further, in this example, the recesses are formed to extend continuously in the longitudinal direction. Therefore, it is possible to avoid the disadvantage that the recess is sealed by the arm in the state where the arm is worn on the arm, and dirt, sweat, and the like accumulate in the arm when the arm is worn on the arm.

Further, on the back of one arm band 6,
An exposed portion 12d of the antenna plate extending continuously in the longitudinal direction is formed, and a middle fastener piece is slidably attached thereto. For this reason, since the middle clasp piece 9 can be slid to any position in the longitudinal direction of the exposed portion 12d, complete free adjustment is possible, and the length of the arm band 4 is accurately adjusted to the thickness of the arm of the wearer. Can be.

On the other hand, in the antenna plates 11 and 12 of the present embodiment, holes and the like for promoting the integration of the surface layer member and the backing member are not formed as in the prior art. Therefore, breakage and the like hardly occur even after long-term use, and the durability is improved. Thus, even without forming a hole in the antenna plate,
In this example, the bonding between the surface layer member and the antenna plate and the bonding between the backing member and the antenna plate are performed using a primer treatment or an adhesive, so that the required bonding strength can be secured. When the antenna plate is cut out from a rolled plate, the antenna plate is cut out so that the rolling direction does not match the band width direction. Therefore, the disadvantage that the antenna plate is easily broken in the width direction can be eliminated.

In the present embodiment, the antenna plate 11,
End pieces 111 and 121 attached to the base end of
Of A, which is higher in strength than the urethane resin of the backing member 52,
It is formed integrally with the bent portions 11b and 12b at the base end of the antenna plate using a BS resin or a polycarbonate resin. The end piece portion is conventionally formed of a metal material. However, if the end piece is formed of a metal material, a stray capacitance is added to the antenna plate 11. There is a problem that the insulating property is reduced because the part is easily thinned compared with the part, or the manufacturing cost is increased because many parts such as parts for securing strength and parts for insulation are required. However, such a problem can be solved by making the end piece made of engineering plastic having high insulation and strength as in this example.

Further, in this embodiment, since the end piece is formed by using the ABS resin and the polycarbonate resin, it is preferable since the fixing strength to the case required for this part can be sufficiently secured.

Other Embodiments In the above embodiment, leather is used as a surface member of the arm band. Instead of another decorative material,
For example, it is a matter of course that synthetic leather, natural material and the like may be used. Also, as the backing member, another synthetic resin material can be used instead of the urethane resin.

In the above example, the wraparound portions are formed at both ends of the backing member so as to cover the side surface of the surface member. Conversely, the wraparound portions are formed on the side surfaces of the surface member. It can be formed to cover the side of the backing member. Alternatively, it is also possible to alternately form a wraparound portion at both ends so that both alternately cover the other side surface.

Further, the concave portion formed on the surface of the backing member does not need to be a continuous concave portion from the viewpoint of imparting sufficient flexibility as an arm band to the backing member. To form a thin portion. Further, from the viewpoint of preventing the formed concave portion from being sealed by the arm and accumulating dirt, sweat and the like therein, and reducing the feeling of wearing, the concave portion is assumed to be continuous as in the above embodiment. Although it is desirable that, in this case as well, it is not necessary to form an elongated rectangle as in the above embodiment.

On the other hand, the end piece attached to the end of the antenna plate can also be formed using a synthetic resin other than the ABS resin or the polycarbonate resin as in the above embodiment. In this case, it is preferable to select a synthetic resin that can secure the strength required for the end piece.

In the above embodiment, the present invention is applied to a wristwatch type radio communication device in which a loop antenna is formed by an arm band. Of course, the present invention can be similarly applied to a wristband with a built-in conductive member in other wristwatch-type electronic devices.

[0035]

As described above, in the band with a built-in conductive member according to the present invention, the following excellent effects can be achieved.

That is, the use of a conductive material cut out so that the rolling direction of the rolled material does not coincide with the band width direction, and a hole for improving the adhesion between the surface layer member and the backing member is provided. By using a conductive member that is not formed, it is possible to eliminate adverse effects such as breakage of the conductive member.

[Brief description of the drawings]

FIG. 1 is an external perspective view of a wristwatch-type wireless communication device according to an embodiment of the present invention.

FIG. 2 is a longitudinal sectional view of the communication device of FIG. 1;

FIG. 3 is a rear view showing the rear surface side in a state where the communication device of FIG. 1 is developed on a plane.

4A and 4B are diagrams showing one arm band piece of the communication device of FIG. 1, wherein FIG. 4A is a rear view thereof, FIG.
(C) is a plan view of the antenna plate built therein,
(D) is a longitudinal sectional view of the antenna plate.

5A and 5B are diagrams showing the other arm band piece of the communication device of FIG. 1, wherein FIG. 5A is a rear view thereof, FIG.
(C) is a plan view of the antenna plate built therein,
(D) is a longitudinal sectional view of the antenna plate.

FIG. 6 is a cutaway perspective view showing a cross section of an arm band of the communication device of FIG. 1;

FIG. 7 is a view showing an end piece attached to an end of an arm band of the communication device in FIG. 1, (A) is a partial perspective view thereof,
(B) is a partial longitudinal sectional view thereof.

FIGS. 8A and 8B are views showing a cut-out state of an antenna plate from a rolled material, wherein FIGS. 8A and 8B are explanatory diagrams showing a cut-out state of an antenna plate used in the communication device of FIG. 1; It is explanatory drawing which shows the cutting-out state of the antenna plate of FIG.

FIG. 9 is a back view showing a conventional wristwatch-type wireless communication device.

FIG. 10 is a plan view showing each antenna plate incorporated in an arm band of the communication device of FIG. 9;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Wristwatch-type wireless communication device 2 ... Communication device unit 3 ... Communication device main body 4 ... Arm band 5, 6 ... Arm band piece 51, 61 ... Surface member 51a ... Ends of surface layer members 52, 62: Backing members 52a, 62a: Concave parts 52b: Wrap-around part 7: Middle clasp 8, 9, ... Middle clasp pieces 11, 12: Antenna Plates 11a, 12a: Both ends of antenna plate 11b, 12b: Bent portion 11c, 12c: Terminal pin 12d: Antenna plate exposed portion 111, 121: End piece 112: Terminal plate

Claims (2)

(57) [Claims] 1. A band having a conductive member configured to be sandwiched between a surface member and a backing member, wherein the conductive member is formed by rolling a strip-shaped long thin plate material in a rolling direction of a width of the band. A band cut out so as to be in a direction different from the direction. 2. An arm-mounted device using the band according to claim 1 as an arm band.