JP2005345204A - Electronic apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electronic apparatus, such as a timepiece, excellent in water proofing properties and equipped with a band. <P>SOLUTION: In the timepiece, a tubular member 70, disposed so as to extend over a display device 10 and an end-part bridge member 32, is formed integrally with a packing 71 for maintaining water proofing properties of a shell 20 and a packing 72 for maintaining water proofing properties of a bridge body 33. The tubular member 70 is not displaced since it is resistant to moving owing to the respective packing 71 and 72. Further, since a high-rigidity tubular pipe member 80 is inserted into the tubular member 70, the degree of adhesion can be raised by repulsive force in all of the tubular member 70 and water proofing properties can be maintained at a body hole part 20C and at a bridge hole part 33B. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

    The present invention relates to an electronic device having a band.

Conventionally, in a wristwatch, a battery or a sensor is housed inside a piece member that constitutes a band for mounting separately from a main body case, and between the watch body and the battery or sensor housed in the piece member by a conductive wire. A wristwatch that enables electrical conduction is known.
Such a conductive wire is wired through the main body case and the piece member of the wristwatch body, and can maintain the waterproof property at the penetrating portion on the main body case side and the waterproof property at the penetrating portion on the piece member side. Required.

As a method of maintaining the waterproofness of such a wristwatch, the end of the conductive wire protrudes from the end piece member of the band connected to the main body case toward the main body case, and is packed in a conduction hole formed on the side surface of the main body case. Press fit together.
Alternatively, a conductive terminal is provided at the tip of the conductive wire protruding from the end piece member of the band, and a conductive terminal is also provided from the main body case side to the protruding conductive wire, and these conductive terminals are connected to each other. It is known that the periphery is covered with an insulating surrounding member, and a seal portion formed on the insulating surrounding member is press-fitted together with packing into a conduction hole formed in the main body case and the piece member (for example, Patent Document 1). .

Japanese Patent No. 3094935

In such Patent Document 1, a method of press-fitting the conductive wire of the end piece member together with the packing into the conduction hole formed on the side surface of the main body case, and covering the connection portion of the conductive terminals of the conductive wire with the insulating surrounding member However, in any method in which the sealing portion of the insulating surrounding member is press-fitted together with the packing to maintain waterproofness, the packing or the insulating surrounding member is only press-fitted into the conduction hole of the main body case or the piece member. If the wristwatch is used for a long period of time, there is a possibility of causing a displacement in the conduction hole.
Therefore, when a gap occurs in the packing or the insulating surrounding member, there is a problem that the waterproof property at the conduction hole portion of the main body case and the piece member is impaired.
Furthermore, when the packing or the insulating surrounding member is press-fitted into the conduction hole, the surface of the packing or the insulating surrounding member is easily damaged, and there is a problem that the waterproof property is impaired by the damage.
Also, when disassembling for repair, etc., the packing and insulating surrounding member must be pulled out from the press-fitted part, and the packing and insulating surrounding member may be damaged or deformed, which also impairs waterproofness. There is a problem of being.

  The objective of this invention is providing the electronic device excellent in waterproofness.

  An electronic apparatus according to the present invention includes a main body case, a first unit housed in the main body case, a band formed by connecting a plurality of piece members to each other, and both ends attached to the main body case, the piece An electronic apparatus comprising a second unit housed in a member and a functional member that functionally connects the first and second units, the first seal member retaining waterproofness of the main body case A second seal member that forms an end portion of the band and that is attached to the main body case to maintain waterproofness, and the inner and outer sides of the main body case communicate with each other. A cylindrical member that is mounted across a main body hole and a piece hole that communicates the inside and outside of the end piece member, the first seal member, the second seal member, and the tubular shape And the member are integrally formed, The through hole provided in the Jo member, wherein the tubular member than the cylindrical member is formed in the high rigidity is inserted throughout the through hole.

According to the present invention, the cylindrical member corresponds to a conventional packing or insulating surrounding member. This cylindrical member includes a sealing member for maintaining the waterproofness of the main body case of the electronic device, and an end member. It is formed integrally with the seal member for maintaining the waterproofness of the part piece member, and it becomes difficult to move by each seal member, so that the waterproofness at the main body hole part and the piece hole part is maintained without causing positional displacement. can do.
In addition, since a more rigid tube member is inserted into the through hole of the cylindrical member over the entire through hole, a repulsive force is generated everywhere on the cylindrical member with respect to the movement of the main body case and the piece member. The degree of adhesion between the shaped member, the main body hole portion and the piece hole portion is improved, and the waterproofness is further improved due to less misalignment.
Further, when the cylindrical member is formed integrally with each seal member, the whole becomes large and easy to handle, so when mounting or disassembling the cylindrical member on the main body case and the end piece member The cylindrical member is less likely to be damaged, and the waterproof property is not impaired by this damage.

  Here, the cylindrical member is a material having watertightness, and is preferably formed of an elastic material having elasticity such as a synthetic resin such as rubber. As the rubber, NBR (acrylonitrile-butadiene) is used. -Rubber), IIR (butyl rubber), etc. are suitable.

  An electronic apparatus according to the present invention includes a main body case, a band in which a plurality of piece members are connected to each other and both ends are attached to the main body case, and a unit housed in a pair of adjacent piece members among these piece members And a functional member that functionally connects these units, one of the pair of piece members, one sealing member that retains the waterproof property of one piece member, and the other piece member The other sealing member that retains the waterproof property of the pair of piece members, and a cylindrical member that is mounted across the hole that communicates the inside and outside of the pair of piece members, the seal member of the pair of piece members, and the cylinder The pipe member formed integrally with the cylindrical member and having a higher rigidity than the cylindrical member is inserted into the through hole provided in the cylindrical member over the entire through hole. Features.

According to this invention, the cylindrical member is formed integrally with the seal member for maintaining the waterproofness of the one piece member and the seal member for maintaining the waterproofness of the other piece member. Wear it across.
That is, as described above, since the movement of the cylindrical member is regulated by the integrated seal members, the cylindrical member is not displaced, and the waterproof property at the hole where the adjacent piece members communicate with each other. Can be held.
In addition, since a more rigid tube member is inserted into the through hole of the tubular member over the entire through hole with respect to the movement of the pair of pieces, a repulsive force is generated everywhere on the tubular member, and the tubular member And the pair of piece hole portions are improved, and the waterproofness is further improved due to less misalignment.
Furthermore, since the handling of the cylindrical member becomes easy, it becomes difficult to damage the cylindrical member and the seal member when the cylindrical member is attached to or disassembled from the piece member. There is no loss.

  In the electronic device of the present invention, at least two locking portions are formed in the cylindrical member at positions spaced apart in the axial direction of the cylindrical member, and one locking portion is formed by the main body case or the It is desirable to be locked to one piece member and the other locking portion to be locked to the end piece member or the other piece member.

According to the present invention, for example, in the case of connecting the case main body and the end piece member, the one locking portion is connected to the main body because the hook-shaped or protrusion-shaped locking portions are formed in both ends of the cylindrical member. By engaging with the case and engaging the other engaging portion with the end piece member, the axial position regulation from both engaging portions of the main body case and the end piece member is more reliably performed. .
Further, even in the case of connecting adjacent piece members, the axial position control from both piece members is more reliably performed by locking the locking portions of the cylindrical members to the respective piece members.
Therefore, since the cylindrical member is well regulated in the axial direction, the position of the cylindrical member is more reliably regulated in combination with the positioning in the hole described above. It is possible to more effectively prevent a waterproof failure due to a position shift on the member side.

  At this time, the cylindrical member has one contact portion that is in close contact with the body hole portion of the main body case and the other contact portion that is in close contact with the piece hole portion of the end piece member, or the pair of members. It is desirable that a close contact portion is provided in close contact with the hole portion of the piece member, and these close contact portions are continuously projected along the circumferential direction on the outer peripheral portion of the cylindrical member.

  According to the present invention, the protruding close contact portion is formed on the outer peripheral portion of the cylindrical member, and the close contact portion is brought into close contact with the inner surface of the main body hole portion and the piece hole portion. Sealing properties are improved and waterproof properties are further improved.

  On the other hand, in the electronic device of the present invention, the cylindrical member is formed with at least two locking portions at positions spaced apart in the axial direction of the cylindrical member. The main body hole portion or the groove portion continuously provided along the circumferential direction on the inner peripheral surface of the hole portion of the one piece member, and the other engagement portion Locked in groove portions continuously provided along the circumferential direction on the inner peripheral surface of the hole portion or the hole portion of the other piece member, and these locking portions are in close contact with the groove portion. It is conceivable that the portion is continuously provided along the circumferential direction on the outer peripheral surface of the locking portion.

According to this invention, since the cylindrical member attaches the locking portion to the groove portion provided in the hole of the main body case, the end piece member or the pair of adjacent piece members, the axial position of the locking portion can be reduced. In addition, since the close contact portion formed on the outer periphery of the locking portion is in close contact with the inner surface of the groove portion, the close contact portion maintains waterproofness in the main body hole portion and the piece hole portion.
Further, since the locking portion and the close-contact portion of the cylindrical member are continuously formed in the circumferential direction at the same position, the cylindrical member can be prevented from being displaced in a small space, and waterproofing can be maintained. It is effective for such small electronic devices.

The electronic apparatus of the present invention is a watch.
In a watch, particularly a wristwatch, the main body case and the piece member frequently move according to the movement of the arm, so that the packing or the like is likely to be displaced. On the other hand, in consideration of work around the water and rain water, good waterproof properties are required. Also, when replacing batteries, the parts are small and difficult to handle, so they are easily damaged.
Therefore, the present invention is effective for a timepiece.

Hereinafter, each embodiment of the present invention will be described with reference to the drawings.
FIGS. 1 to 7 show a timepiece as an electronic apparatus according to the first embodiment of the present invention and its main part, and FIGS. 8 and 9 show the main part of the timepiece according to the second embodiment. 10 shows the main part of the timepiece according to the third embodiment, and FIG. 11 shows the main part of the timepiece according to the fourth embodiment.

[First Embodiment]
Hereinafter, the timepiece 1 according to the first embodiment of the present invention will be described.
FIG. 1 is a front view of a main part of the timepiece 1, and FIG.
1 and 2, a timepiece 1 includes a display device 10 having an outer case formed by a metal case 20 as a main body case, and a band 30 formed by connecting a plurality of piece members 31 to each other in one direction. It has.

  The display device 10 includes a time display unit 11 on the surface side thereof, and has a plurality (four in the present embodiment) of buttons 23 that are operated according to various functions on the side surface side of the trunk 20. As shown in FIG. 2, the time display unit 11 includes a liquid crystal display 12 that displays time and the like by digital display, and a glass 21 that covers the surface of the liquid crystal display 12 and is fixed to the body 20. . An electronic circuit board 13 that is connected to the liquid crystal display 12 and controls display is provided on the back side of the liquid crystal display 12. The liquid crystal display 12 and the electronic circuit board 13 are housed in a liquid crystal display housing 15 of the body 20, and the liquid crystal display housing 15 is screwed to the body 20 by a metallic main body back cover 22. It is blocked. An annular packing 71 serving as a seal member is sandwiched between the body 20 and the main body back cover 22 and is pressed into contact with the outer periphery of the liquid crystal display storage unit 15 of the body 20 by screwing as described above.

  The band 30 is configured by a plurality of metal piece members 31 being connected to each other via a pair of fixing pins 40 so as to be rotatable. Of the plurality of piece members 31, the piece members 31 arranged at the end portions are end piece members 32 and 39, and these end piece members 32 and 39 are connected to the band attaching portion 20 </ b> A facing the body 20. Thus, the band 30 is attached to the display device 10. Further, although not shown, the middle of the band 30 is connected via a fixture provided with a zipper or the like that can be folded into a Z shape, and the entire band 30 is formed in an annular shape. When the watch 1 is worn on the arm, the band 30 is adjusted to a length that can provide a good feeling of wearing by means of a saddle and the like, and the fixing tool is fixed through the arm.

The end piece member 32 and the other piece member 31 are respectively formed with a convex portion 32A and a concave portion 31B that are connected to each other. The piece member 31 and the end piece member 32 are inserted into a fixed pipe (not shown) provided in the convex portion 32A in a state where the convex portion 32A and the concave portion 31B of the piece member 31 and the concave portion 31B are engaged with each other. Thus, the fixing pins 40 are connected to each other so as to be rotatable around the tip axis. Further, the end piece members 32 are attached to the barrel 20 with the side portions being sandwiched between the band attachment portions 20 </ b> A formed by extending from the side surface of the barrel 20 in the direction of the band 30. That is, by inserting the tips of the pair of fixing pins 24 fixed to each band attaching portion 20 </ b> A into a fixing pipe (not shown) provided in the end piece member 32, the end piece member 32 is fixed to the fixing pin 24. It is connected so as to be rotatable around the tip axis.
The fixing pins 24 and 40 may be of a type in which the tip is screwed into the end piece member 32 in addition to what is inserted into the fixed pipe on the end piece member 32 side.

The end piece member 32 is formed in a hollow shape with a piece body 33 on the front surface side and a piece back cover 34 on the back surface side. In this embodiment, the hollow portion is a battery storage portion 35 that stores two batteries 50. Although not shown, the battery 50 is connected and supported by positive and negative terminals and the like. The piece back cover 34 is screwed to the piece main body 33 (FIG. 7), and an annular packing 72 as a seal member is formed on the outer peripheral portion of the battery housing portion 35 of the piece main body 33 with the piece main body 33 and the metal. And is pressed by the above-mentioned screwing.
Since the end piece member 39 opposite to the end piece member 32 with respect to the display device 10 is the same as the end piece member 32, detailed description thereof is omitted here.

FIG. 3 is a cross-sectional view of a main part showing a communication portion between the body 20 and the piece body 33 of the end piece member 32 in the display device 10 and the band 30.
Main body holes are formed in end faces 20B and 33A of the members of the body 20 and the main body 33 facing each other so as to penetrate to the liquid crystal display storage unit 15 and the battery storage unit 35 substantially coaxially with each other in the connecting direction. A portion 20C and a piece hole portion 33B are provided. The main body hole portion 20C and the piece hole portion 33B are substantially U-shaped having openings on the main body back cover 22 and the piece back cover 34 side.
In each of the holes 20C and 33B, a hollow cylindrical member 70 having a through hole 70A is disposed so as to straddle the trunk 20 and the piece main body 33.

Below, the cylindrical member 70 and packing 71,72 are demonstrated in detail using FIG.3, FIG.4, FIG.5 and FIG.
FIG. 4 is a front view showing the entire cylindrical member 70 and packings 71 and 72, and FIG. 5 is a side view thereof. FIG. 6 is a cross-sectional view of the cylindrical member 70 and the packing 72.
4 and 5, the cylindrical member 70 has a hollow cylindrical portion 70G, and the outer shape of the cylindrical portion 70G is a substantially U-shaped cross section along the inner surface shape of the main body hole portion 20C and the piece hole portion 33B. (FIG. 6, BB cross section). Further, at both end portions of the cylindrical member 70, there are flange-like locking portions 70B and 70C that protrude outward in the radial direction of the cylindrical portion 70G and that are larger than the inner diameters of the main body hole portion 20C and the piece hole portion 33B. Is formed. The locking portions 70B and 70C are in contact with the opening edges 20D and 33C (FIG. 3) inside the main body hole portion 20C and the piece hole portion 33B in the liquid crystal display storage portion 15 and the battery storage portion 35.
Two close contact portions 70E and 70F protruding continuously in the circumferential direction are formed on the outer periphery of the cylindrical portion 70G. One close contact portion 70E is in close contact with the inner surface of the main body hole portion 20C, and the other close contact portion 70F is a piece. It is in close contact with the inner surface of the hole 33B.
In the tubular member 70, a packing 71 is continuously formed integrally with the close contact portion 70E on the main body back cover 22 side, and a packing 72 is continuously formed integrally with the close contact portion 70F on the piece back cover 34 side.
A cylindrical tube member 80 made of metal is inserted into the through hole 70 </ b> A of the cylindrical member 70. Here, when the barrel 20 and the end piece member 32 are about to rotate, the tube member 80 itself has high rigidity, but the tubular member 70 is made of an elastic material (described later). The body 20 and the end piece member 32 can be rotated to some extent by being pressed and contracted and by some bending of the metal.

In FIG. 3, the pipe member 80 is formed in a substantially cylindrical shape, the outer diameter is substantially the same as the diameter of the through hole 70A of the cylindrical member 70, and a through hole 80B is formed in the central portion in the radial direction. . A locking flange 80 </ b> A is formed at the end of the tube member 80 on the liquid crystal display housing 15 side so as to protrude outward in the radial direction of the tube member 80. The battery housing 35 side opposite to the locking flange 80 </ b> A is stopped by the C-ring 81 in order to restrict the movement of the tube member 80. Therefore, the pipe member 80 is stopped on both sides of the cylindrical member 70. The tube member 80 is preferably made of metal in terms of strength, but may be a synthetic resin or the like as long as it has rigidity.
Although not shown, a power line as a functional member that connects and supports the battery 50 connected to and supported by the plus and minus terminals and the connection terminal of the electronic circuit board 13 is inserted into the through hole 80B of the tube member 80. .

Next, the packing 72 will be described first.
6 is a cross-sectional view taken along the line AA of the packing 72 in FIG. 4 and a cross-sectional view taken along the line BB of the joined portion 70F of the cylindrical member 70 and the packing 72. FIG.
In the AA cross section, the packing 72 has a planar quadrangular shape along the outer periphery of the battery housing portion 35 of the piece main body 33, and the cross section of the annular portion has a circular shape. The curved surface portion 72A is mounted so as to be in close contact with the bottom surface portion of the groove 33D formed in the piece body, and the curved surface portion 72B is set so as to protrude from the opening surface of the groove 33D as shown in FIG. It is in pressure contact with the frame back lid 34 and is in close contact therewith.
Such a packing 72 is integrally formed with the contact portion 70 </ b> F of the cylindrical member 70 by a joint portion 72 </ b> D.

  As shown in the BB cross-sectional view, the joint portion 72D is slightly recessed from the surface of the curved surface portion 72B formed in the packing 72. This is because the joint portion 72D is deformed to the outer peripheral side when the tube member 80 is inserted into the through hole 70A so as to be substantially the same surface as the curved surface portion 72B. If the outer diameter and the inner diameter of the through hole 70A are adjusted, they may be set to the same height.

On the other hand, the packing 71 is a planar quadrangular shape along the outer periphery of the liquid crystal display accommodating portion 15 of the body 20, and the planar shape is different, but the cross-sectional shape of the annular portion is the same as the packing 72. As shown, it has a curved surface portion 71A and a curved surface portion 71B.
In FIG. 3, the packing 72 has a curved surface portion 72A that is in close contact with the bottom of the groove 33D, and one curved surface portion 72B is set to protrude from the opening surface of the groove 33D, that is, from the depth of the groove 20E. Also, the height 72 (shown in FIG. 6) of the packing 72 is set high, and is pressed against and closely attached to the piece back cover 34. The packing 71 also has a curved surface portion 71A that is in close contact with the bottom of the groove 20E, and one curved surface portion 71B is set so as to protrude from the opening surface of the groove 20E in the same manner as the packing 72 described above. The main body back cover 22 is pressed against and in close contact.

  The cylindrical member 70 and the packings 71 and 72 as described above are watertight materials, and elastic materials such as NBR (acrylonitrile-butadiene-rubber), IIR (butyl-rubber), etc. It is integrally formed from.

With reference to FIG. 7, an overall configuration and an assembling procedure of the main part of the present embodiment will be described.
FIG. 7 is an exploded perspective view of a main part in which the glass 21 is displayed on the lower surface side along the assembly procedure.
First, the glass 21 is fixed to the trunk 20 in advance. Next, the barrel 20 and the piece main body 33 are connected to each other via the fixing pin 40 so as to be rotatable. The liquid crystal display 12 and the electronic circuit board 13 are housed in the body 20 (not shown), and the battery 50 is housed in the frame body 33 (not shown). Next, the tube member 80 is inserted into the through-hole 70A of the cylindrical member 70 from the liquid crystal display housing portion 15 side, and the opposite battery housing portion 35 side is stopped by a C ring 81 (not shown). Here, a power line is inserted in advance into the through hole 80B of the tube member 80 (not shown).
Next, the cylindrical member 70 is mounted in the main body hole portion 20C and the piece hole portion 33B, the packing 71 is mounted in the groove 20E provided in the body 20, and the packing 72 is provided in the groove 33D provided in the piece main body 33. Install inside. At this time, the locking portions 70 </ b> B and 70 </ b> C at both ends of the cylindrical member 70 are locked in accordance with the opening edge 20 </ b> D of the trunk 20 and the opening edge 33 </ b> C of the piece main body 33. Next, six screws 90 are inserted into the screw insertion holes 22 </ b> A provided in the main body back cover 22 and screwed into the screw holes 20 </ b> F formed in the main body 20, so that the main body back cover 22 is attached to the main body 20. Fix it. Similarly to the case of the barrel 20 side, four screws 90 are inserted into a screw insertion hole 34A provided in the piece back cover 34 and screwed into a screw hole 33E provided in the piece main body 33. The frame back cover 34 is fixed to the frame body 33. Furthermore, both sides of the main body hole portion 20C and the piece hole portion 33B to which the cylindrical member 70 is mounted are tightened by screws 91 through the screw insertion holes 22B of the main body back cover 22 and the screw insertion holes 34B of the piece back cover 34.
When the main body back cover 22 and the frame back cover 34 are fixed to the body 20 and the body main body 33, respectively, the packings 71 and 72 are between the main body back cover 22 and the body 20 and between the frame back cover 34 and the body main body 33, respectively. And are brought into close contact with the contact surface of each member. Further, the close contact portions 70E and 70F protruding from the cylindrical member 70 are also provided between the main body back cover 22, the main body hole portion 20C of the trunk 20, and the inner surface of the piece hole portion 33B of the piece main body 33 and the piece back cover 34. It is press-contacted and is in close contact with the contact surface of each member.
In the present embodiment, the cylindrical member 70 including the packing 71 and the packing 72 has the main body back cover 22 and the piece back cover 34 fixed to the body 20 and the piece main body 33 by screws 90. In addition, a fixing structure such as a back cover fitting structure may be employed. Even in the case of screw fixation, the number of screws is not limited and can be appropriately selected. Further, the assembly procedure is not limited to this embodiment.

Therefore, according to the present embodiment, the following effects can be obtained.
(1) In the timepiece 1, the cylindrical member 70 disposed across the display device 10 and the end piece member 32 has a packing 71 for maintaining the waterproofness of the trunk 20 and the waterproofness of the piece body 33. Since it is formed integrally with the packing 72 for holding and is not easily moved by the packings 71, 72, the cylindrical member 70 is not displaced, and the waterproofing in the main body hole 20C and the piece hole 33B is achieved. Sex can be maintained.

(2) Moreover, in the cylindrical member 70, since the tubular member 80 formed with higher rigidity than the cylindrical member 70 is inserted into the through hole 70A, the cylindrical member 70 is attached to the main body back cover 22. In addition, when pressed by the piece back cover 34, the degree of adhesion due to the repulsive force can be increased over the entire tubular member 70, and the waterproofness can be further improved.

(3) Further, if the cylindrical member 70 is formed integrally with the packings 71 and 72, the whole becomes large and easy to handle, so the cylindrical member 70 is attached to the trunk 20 and the piece body 33, or When disassembling, the cylindrical member 70 is not easily damaged, so that the waterproof property is not impaired by this damage.

(4) Furthermore, since the cylindrical portion 70G is mounted in the main body hole portion 20C and the piece hole portion 33B, and the packings 71 and 72 are mounted in the grooves 20E and 33D, these can be stably held, and the assemblability is good.
Further, when disassembling, the cylindrical member 70 can be easily removed and re-assembled easily by loosening and removing the screws 90 and 91 of the back cover.

(5) Since the locking portions 70B and 70C are formed in both end directions of the cylindrical member 70, the axial position regulation from both the locking portions of the trunk 20 and the piece main body 33 is more reliably performed. The
Accordingly, the cylindrical member 70 is more reliably regulated in position in the axial direction, so that the position of the cylindrical member is more reliably regulated. Therefore, the cylindrical member 70 is waterproof due to positional deviation on the barrel 20 side or the piece main body 33 side. Defects can be prevented more effectively.

(6) Moreover, in this embodiment, contact | adherence part 70E, 70F is formed in the outer peripheral part of the cylinder part 70G of the cylindrical member 70, and this contact | adherence part 70E, 70F is inner surface of the main body hole part 20C and the piece hole part 33B. Therefore, the sealing performance in the main body hole portion 20C and the piece hole portion is improved, and the waterproof property is further improved. Since the close contact portions 70E and 70F are formed in a protruding shape, when the main body back cover 22 and the piece back cover 34 are pressed and fixed, the press contact force is concentrated on the close contact portions 70E and 70F. Further, waterproofness can be further improved.

(7) Both sides of the main body hole portion 20C and the piece hole portion 33B to which the tubular member 70 is mounted are tightened and pressed by the screws 91, so that the tubular member 70 is rotated even if the barrel 20 and the piece main body 33 are rotated. Can improve waterproofness without floating from the main body hole 20C and the piece hole 33B.

[Second Embodiment]
Next, a second embodiment of the present invention will be described.
A watch as an electronic apparatus according to the second embodiment includes a band that connects a case main body and a plurality of piece members, and connects the main body case and the band, as in the first embodiment. Of these piece members, this relates to the structure of a pair of adjacent piece members and their communicating portions, which will be described in detail below.

FIG. 8 is a front view of an essential part of a communicating part of a pair of adjacent piece members 101 among a plurality of piece members 101 constituting the band 30, and FIG. 9 is a sectional view of the essential part.
In FIG. 8, the band 30 is configured by connecting a plurality of metal piece members 101 to be connected to each other via a pair of fixing pins 40. In such a piece member 101, a hollow portion is formed by the piece main body 102 and the piece back cover 140 in the same manner as the end piece member 32 in the first embodiment described above (FIG. 9). The piece main body 102 has a convex portion 102A on one side and a concave portion 102B on the other side which are connected to each other. The piece members 101 connected to each other are inserted into a fixed pipe (not shown) provided in the convex portion 102A with the tip of the fixing pin 40 in a state where the convex portion 102A and the concave portion 102B facing each other are engaged with each other. Thus, the fixed pins 40 are connected to each other so as to be rotatable around the tip axis.
The hollow portion formed in the piece member 101 is a functional unit storage portion 102C, and in this embodiment, although not shown, a sensor for temperature measurement and pulse measurement, and a functional unit 120 such as a communication device are stored.

In FIG. 9, each piece body 102 is provided with a hole portion 102 </ b> D that communicates from the opposing end faces 102 </ b> G and 102 </ b> H to the inner functional unit storage portion 102 </ b> C, and has a substantially U-shaped continuous shape that opens the back cover side. An inner surface is formed. A groove 102F is formed on each outer periphery of the functional unit storage portion 102C.
Cylindrical members 130 are mounted across communication portions between adjacent piece members 101, and packings 131 as seal members for the respective piece members 101 are formed integrally with the cylindrical members 130 at both ends thereof. . The cylindrical member 130 and the packing 131 are firmly fixed to the piece back cover 140 and the piece main body 102 by screwing the piece back cover 140 to the piece main body 102. Such a configuration is the same as the communication portion between the main body case and the end piece member of the first embodiment described above.

Locking portions 130A that are continuous in the circumferential direction of the cylindrical portion 130B project from both end portions in the axial direction of the cylindrical member 130, and are locked along the open end surface 102E of the piece main body 102. Two close contact portions 130D that are continuous in the circumferential direction of the cylindrical portion 130B project from the locking portion 130A in the axial direction. The cylindrical member 130 is provided with a substantially circular through hole 130C, and the pipe member 150 is inserted into the through hole 130C from one side.
One end portion in the axial direction of the tube member 150 is formed with a collar-like locking portion 150A, the other is stopped by a C-ring 151, and a through hole 150B is formed in the center portion. Although not shown, a signal line as a functional member for connecting the functional units 120 housed in the piece member 101 is inserted into the through hole 130 </ b> C of the tubular member 130 and the through hole 150 </ b> B of the tube member 150.
The annular packing 131 is mounted in a groove 102 </ b> F formed in the piece main body 102. The cross-sectional shape of the packing 131 is the same as that of the AA cross section and the BB cross section shown in FIG.

Therefore, in the second embodiment, the following effects can be obtained.
The second embodiment differs from the first embodiment described above in the same configuration, although there is a difference between the communication portion between the trunk 20 and the piece body 33 and the communication portion between the adjacent piece members 101. The obtained effects are equivalent.
That is, since the cylindrical member 130 is formed integrally with the packing 131, the cylindrical member 130 does not cause a positional shift, and can maintain waterproofness in the hole portion 102D of the piece main body 102. Since the whole is large, it is easy to handle, and it is difficult to damage the cylindrical member 130 when assembling or disassembling, so that the waterproofness is not impaired by this scratch (the above-mentioned (1), (2 ) Effect).
Further, since the cylindrical portion 130B of the cylindrical member 130 is mounted in the hole portion 102D and the packing 131 is mounted in the groove 102F, these can be stably held, and the assemblability is good.
When disassembling, the cylindrical member 130 can be easily removed by loosening and removing the screw, and reassembly is also easy (the effect (3) described above).
Further, since the locking portions 130A are formed at both end portions of the cylindrical member 130, the position regulation of the cylindrical member 130 becomes more reliable, and it is possible to more effectively prevent the waterproof failure due to the positional deviation ((4) described above). Effect).
In the present embodiment, since the close contact portion 130D is formed on the cylindrical member 130, the close contact force with the hole portion 102D of the piece main body 102 is increased, and the waterproofness can be further improved (the effect (5) described above).
Further, since the tube member 150 is inserted into the tubular member 130, the degree of adhesion due to the repulsive force is increased over the entire tubular member 130 when the tubular member 130 is pressed by the piece back cover 140. The waterproofness can be further improved (the effect of (6) described above).
Furthermore, if both sides of the hole portion 102D communicating with the piece back cover 140 are screwed, the cylindrical member 130 can be prevented from being lifted due to the movement of the piece members 101, and the waterproofness can be further improved. . (Effect of (7) described above).

[Third Embodiment]
Next, a third embodiment of the present invention will be described.
A watch as an electronic apparatus according to the third embodiment includes a band that connects a case main body and a plurality of piece members, and connects the main body case and the band as in the first embodiment. Only the locking portions of the cylindrical member 70 and the trunk 20 and the piece main body 33 are different. Below, it demonstrates in detail focusing on a difference. The reference numerals to be assigned are the same as those in the first embodiment.

FIG. 10 is a cross-sectional view of a main part of a communication portion between the trunk 20 serving as a main body case and the piece main body 33.
In FIG. 10, continuous groove portions 25 and 36 are formed along the circumferential direction on the inner peripheral surfaces of the body hole portion 20 </ b> C and the piece hole portion 33 </ b> B provided in the trunk 20 and the piece body 33. The cylindrical member 70 has two locking portions 75 and 76 along the circumferential direction of the cylindrical portion 70G at positions corresponding to the groove portions 25 and 36, and a curved surface portion 71A of the packing 71 and a curved surface portion 72A of the packing 72. (See FIG. 6, BB cross section). These locking portions 75 and 76 have substantially the same width as the groove widths of the groove portions 25 and 36 and protrude higher than the groove depth. Close contact portions 75A and 76A are formed on the outer periphery of the locking portions 75 and 76 so as to be in close contact with the surfaces of the body 20 and the groove portions 25 and 36 of the piece body 33. The cross-sectional shapes of the contact portions 75A and 76A are formed in a substantially circular curved surface, but may be square and can be selected from the pressure contact force and the adhesion of the back cover.
The tubular member 70 includes a tube member 80 that is inserted into the through hole 70 </ b> A of the tubular member 70. A locking flange 80A is formed on one end surface of the tube member 80, and an end surface opposite to the locking flange 80A is stopped by a C-ring 81.
The assembling method can be performed in the same procedure as in the first embodiment, but in this embodiment, the cylindrical member 70 is locked with the locking portions 75 and 76 in the groove portions 25 and 36, and the packings 71 and 72 are respectively connected. The groove 20E of the body 20 and the groove 33D of the piece body 33 are mounted. Next, the main body back cover 22 and the piece back cover 34 are pressed and fixed with screws 90. Here, as in the first embodiment, both sides of the main body hole portion 20C and the piece hole portion 33B to which the tubular member 70 is mounted are also inserted into the screw insertion holes 22B of the main body back cover 22 and the screw holes of the piece back cover 34. It tightens with the screw | thread 91 through the hole 34B (refer FIG. 7).

In the present embodiment, the effects (1) to (7) described above can be obtained in the same manner with the same configuration as in the first embodiment. Further, in the present embodiment, the following effects are obtained by the unique configuration.
(8) That is, since the locking portions 75 and 76 of the cylindrical member 70 are mounted in the groove portions 25 and 36 of the barrel 20 and the piece main body 33, the axial position of the cylindrical member 70 can be restricted, and the cylindrical shape The waterproof failure due to the positional deviation of the member 70 can be prevented. Further, since the close contact portions 75A and 76A formed on the outer periphery of the locking portions 75 and 76 are in close contact with the inside of the groove portions 25 and 36, when the cylindrical member 70 is press contact fixed with the back cover, the press contact force is applied. It can concentrate on a close_contact | adherence part and can improve waterproofness further.

(9) Moreover, in this embodiment, since the contact | adherence part 75A, 76A is formed in the outer periphery of the latching | locking part 75,76 of the cylindrical member 70, the axial direction length of the cylindrical member 70 can be shortened. In a small electronic device, the length of the communication portion between the display device 10 and the end piece member 32 can be shortened, and the obtained space can be used for other purposes.

[Fourth Embodiment]
Next, a fourth embodiment of the present invention will be described.
A watch as an electronic apparatus according to the fourth embodiment includes a band connecting a case main body and a plurality of piece members, and connects the main body case and the band as in the first embodiment. Only the locking portion between the cylindrical member 70 and the barrel 20 and the piece body 33 and the close contact portion of the tubular member 70 and the method of stopping the pipe member 80 on one side are different. Below, it demonstrates in detail focusing on a difference. The reference numerals to be assigned are the same as those in the first embodiment.

FIG. 11 is a cross-sectional view of a main part of a communicating portion between the trunk 20 of the main body case and the piece main body 33 of the present embodiment.
In FIG. 11, the cylindrical member 70 is formed with locking portions 70B and 70C at both axial ends as described in the first embodiment, and the close contact portions 70E and 70F are located inside the locking portions 70B and 70C. Is formed.
In the tubular member 70 of the present embodiment, second locking portions 77 and 78 are further formed along the outer periphery of the tubular portion 70G on the inner side in the axial direction of the contact portions 70E and 70F. These second locking portions 77 and 78 are set to have larger diameters than the outer diameters of the contact portions 70E and 70F.
The body 20 is formed with a main body hole portion 20C and an opening edge 20D that engages the engaging portion 70B at the end of the cylindrical member 70. On the inner surface of the main body hole portion 20C, a cylindrical member is formed. A groove portion 25 having a width substantially the same as the width of the locking portion 77 and a diameter larger than the outer peripheral direction outer shape of the second locking portion 77 is formed at a position corresponding to the second locking portion 77 of 70. Is done.
The piece main body 33 is formed with a piece hole portion 33B and an opening edge 33C for locking the locking portion 70C of the cylindrical member 70, and the inner surface of the piece hole portion 33B has a cylindrical member 70. A groove portion 26 is formed at a position corresponding to the second locking portion 78 and has a width substantially the same as the width of the second locking portion 78 and a larger diameter than the outer shape of the second locking portion 78 in the outer circumferential direction. Has been.

The packings 71 and 72 are formed continuously with the close contact portions 70E and 70F of the cylindrical member 70 as in the first embodiment, and are attached to the groove 20E of the trunk 20 and the groove 33D of the piece main body 33, respectively. 22 and the frame back cover 34 are fixed by screwing together with the cylindrical member 70 by screw fixing (see FIG. 7).
A tubular tube member 80 is inserted into the through hole 70A of the tubular member 70 from one end thereof. In the present embodiment, the other end of the tube member 80 is not stopped by a C ring or the like.

  The method of assembling the cylindrical member is substantially the same as that of the first embodiment. However, when assembling, the locking portion 70B of the cylindrical member 70 is used as the opening edge 20D of the barrel 20, and the second locking portion 77 is used as the groove. 25, and the close contact portion 70E is in close contact with the inner surface of the main body hole portion 20C. On the other hand, the engaging portion 70C is attached to the opening edge 33C of the piece body 33 and the second engaging portion 78 is attached to the groove portion 26, and the close contact portion 70F is attached to the inner surface of the piece hole portion 33B.

The cylindrical member 70 according to the present embodiment includes a locking portion 70B and a second locking portion 77 on the body 20 side, and a locking portion 70C and a second locking portion 78 on the piece body 33 side. Since the locking is performed in the axial direction, the contact portions 70E and 70F are between the locking portions 70B and 77 and the locking portions 70C and 78, and are in close contact with the inner surface of the main body hole portion 20C and the piece hole portion 33B. In addition, even if the barrel 20 and the end piece member 32 rotate around the tip axis of the fixing pin (see FIG. 1) and the cylindrical member 70 is bent in conjunction therewith, the contact portions 70E and 70F The distortion or deformation is stopped by the second locking portion and is not transmitted. Therefore, the adhesion of the close contact portions 70E and 70F is not impaired, and the waterproofness can be more reliably maintained.
In addition, one end of the tube member 80 inserted through the through hole 70A of the cylindrical member 70 is not stopped by a C ring or the like and moves somewhat in the through hole 70A, but the repulsive force over the entire cylindrical member 70 Is less affected and waterproofness is maintained. In the present embodiment, there is an advantage that the process of attaching the C-ring can be omitted.
In the present embodiment, the locking portions 70B and 70C of the cylindrical member 70 are formed at both ends. However, similarly to the second locking portions 77 and 78, the main body hole portion 20C and the piece hole portion 33B The effect does not change even if the contact portion is formed between the two.

It should be noted that the present invention is not limited to the above-described embodiment, but includes modifications and improvements as long as the object of the present invention can be achieved.
For example, in the first embodiment, the cylindrical member 70 in which the packing 71 and the packing 72 are integrally formed is attached to the communication portion between the trunk 20 and the piece main body 33 of the end piece member 32. By attaching a cylindrical member integrally formed with the packing of the end piece member 32 and the packing of the other piece member to the communicating portion with the other piece member 31 connected to the end piece member 32, the end portion The waterproofness of the piece member and other piece members can be ensured. That is, you may provide both the structure of 1st Embodiment and 2nd Embodiment.

  Moreover, in 2nd Embodiment, although the cylindrical member 130 and packing 131 which connect the piece main body 102 of all the piece members 101 to connect are integrally formed, it is a cylinder only about a pair of adjacent piece member. The shaped member 130 and the packing 131 may be integrally formed.

  The cylindrical members 70 and 130 of the first and second embodiments are provided with the locking portions 70B, 70C and 130A at both ends thereof, but the locking portions 70B, 70C and 130A are not necessarily required. Further, the locking portion may be formed only on one side, and a single groove is formed in either the main body hole portion 20C of the trunk 20 or the piece hole portion 33B of the piece main body 33, and the one groove is formed in the groove. Even when the locking portion is locked, the position of the cylindrical member 70 can be regulated.

  The two close contact portions are formed on the outer periphery of the cylindrical portion 70G of the cylindrical member 70 of the first embodiment. The outer periphery of the cylindrical portion 70G is formed on the inner surfaces of the body hole portion 20C of the trunk 20 and the piece hole portion 33B of the piece body 33. If the dimensions are such that the main body back cover 22 and the piece back cover 34 are in pressure contact with each other, it is possible to ensure waterproofness without necessarily protruding the close contact portion.

  In the third embodiment, the close contact portions 75A and 76A are formed on the outer peripheral portions of the locking portions 75 and 76 of the cylindrical member 70, and the groove portions 25 and 36 formed in the body 20 and the frame main body 33 are formed. The locking portions 75 and 76 are attached, and the close contact portions 75A and 76A are brought into close contact with the groove portions 25 and 26. However, the opening portions outside or inside the body hole portion 20C of the trunk 20 and the piece hole portion 33B of the piece body 33 are provided. A step portion having an inner diameter larger than the outer peripheral shape of the locking portions 75 and 76 and slightly smaller than the outer shape of the contact portions 75A and 76A is formed on the periphery, and the locking portion is locked to the step portions. Thus, even if the close contact portion is brought into contact with and closely contacted with the inner peripheral surface of the stepped portion, the waterproofness can be ensured better while preventing the displacement of the cylindrical member 70.

  In each of the above embodiments, the locking flanges 80A and 150A are provided on the pipe members 80 and 150. However, even if these are not provided, the movement in the through holes 70A and 130C is restricted to some extent, and the tubular members 70 and 150 The resilience is also maintained. It is possible to adopt it when it is desired to simplify the structure of a part.

  In each of the above-described embodiments, a continuous pipe member is used as the pipe member 80. However, the pipe member 80 may be a structure in which the divided pipe members are arranged in the through holes while being in contact with each other, or a pipe member having a slit. May be. That is, any structure may be used as long as it is inserted over the entire through-hole and pressure is applied from the inner surface of the cylindrical member to generate a repulsive force everywhere. With such a tube member structure, even a highly rigid tube member can easily follow the rotation of the trunk and the piece.

Furthermore, in each said embodiment, although the trunk | drum and the piece member were demonstrated as metal, even if it is a synthetic resin trunk | drum and piece member, if it is the structure of this invention, the electronic device excellent in waterproofness is realizable. .
In each of the above embodiments, the digital display timepiece using the liquid crystal display 12 is described as an example of the electronic device. However, an analog display device is stored in the main body case, and a battery or other functional unit is stored in the end piece member. Even with a configuration that allows communication, a watch with excellent water resistance can be realized.
Furthermore, the electronic device of the present invention is not limited to a watch, and may be any electronic device such as a portable information terminal.

The principal part front view which shows 1st Embodiment of this invention. Sectional drawing of the said embodiment. Sectional drawing of the principal part of the said embodiment. The front view of the cylindrical member of the said embodiment. The side view of the cylindrical member of the said embodiment. Sectional drawing of the cylindrical member and sealing member of the said embodiment The disassembled perspective view which shows schematic structure of the principal part of the said embodiment. The principal part front view which shows 2nd Embodiment of this invention Sectional drawing of the principal part of the said embodiment. The principal part sectional view showing a 3rd embodiment of the present invention. The principal part sectional view showing a 4th embodiment of the present invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Clock as electronic equipment, 10 ... Display device, 12 ... Liquid crystal display, 13 ... Electronic circuit board, 20 ... Body, 20C ... Body hole, 21 ... Glass, 22 ... Body back cover, 25, 36 ... Groove , 30 ... Band, 31, 101 ... Piece member, 32, 39 ... End piece member, 33, 102 ... Piece body, 33B ... Piece hole portion, 34 ... Piece back cover, 70, 130 ... Cylindrical member, 70B, 70C, 75, 76, 77, 78, 130A ... locking portion, 70E, 70F, 75A, 75B ... close contact portion, 71, 72, 131 ... packing as seal member, 80, 150 ... pipe member, 81, 151 ... C ring 120 ... functional unit, 130C ... through hole, 140 ... piece back cover.

Claims (6)

A main body case, a first unit housed in the main body case, a plurality of piece members connected to each other, a band attached to the main body case at both ends, and a second housed in the piece member And an electronic device comprising a functional member that functionally connects the first and second units,
A first seal member for maintaining the waterproofness of the main body case;
Of the plurality of piece members, a second seal member that forms the end of the band and maintains the waterproofness of the end piece member attached to the main body case;
A main body hole that communicates the inside and outside of the main body case and a cylindrical member that is mounted across the piece hole that communicates the inside and outside of the end piece member;
The first seal member, the second seal member, and the tubular member are integrally formed,
An electronic apparatus, wherein a tubular member formed with higher rigidity than the tubular member is inserted into the through-hole provided in the tubular member over the entire through-hole. A main body case, a band in which a plurality of piece members are connected to each other and both ends are attached to the main body case, a unit housed in a pair of adjacent piece members among these piece members, and a function of these units An electronic device comprising a functional member to be connected electrically,
Of the pair of piece members, one seal member that retains the waterproof property of one piece member, and the other seal member that retains the waterproof property of the other piece member,
A cylindrical member mounted across a hole for communicating the inside and outside of the pair of piece members;
The seal member of the pair of piece members and the cylindrical member are integrally formed,
An electronic apparatus, wherein a tubular member formed with higher rigidity than the tubular member is inserted into the through-hole provided in the tubular member over the entire through-hole. The electronic device according to claim 1 or 2,
The cylindrical member is formed with at least two locking portions at positions spaced apart in the axial direction of the cylindrical member, and one locking portion is locked to the main body case or the one piece member. The other locking portion is locked to the end piece member or the other piece member. The electronic device according to any one of claims 1 to 3,
The cylindrical member has one close contact portion that is in close contact with the main body hole portion of the main body case and the other close contact portion that is in close contact within the piece hole portion of the end piece member, or the pair of pieces. An electronic apparatus comprising a pair of close contact portions that are in close contact with the inner surface of the hole portion of the member, and these close contact portions project continuously from the outer peripheral portion of the cylindrical member along the circumferential direction. The electronic device according to claim 1 or 2,
The cylindrical member is formed with at least two locking portions at positions spaced apart in the axial direction of the cylindrical member, and one locking portion is a main body hole of the main body case or the one piece member. The other locking portion is a hole in the end piece member or the hole in the other piece member. Locked in grooves provided continuously along the circumferential direction on the inner peripheral surface of the portion, and in these locking portions, a close contact portion that is in close contact with the inner surface of the groove portion surrounds the outer peripheral surface of the locking portion. An electronic apparatus characterized by being provided continuously along a direction. The electronic device according to any one of claims 1 to 5,
The electronic device is a watch.

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