JP2005127844A - Wrist worn instrument - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enable internal air tight to be maintained, to prevent an instrument from growing in size, and to improve a feeling of fitness when wearing it. <P>SOLUTION: A wrist watch (100) is provided with a case body (2) which is worn on a wrist; a back cover (4) which contacts with the wrist when the case body is worn on the wrist and which covers one aperture of the case body; a watch glass (3) which covers the other aperture of the case body; and a housing (7) which is disposed between the back cover and the watch glass and which divides the inside of the case body into two spaces. The back cover is made up of a soft material which can be elastically deformed by an acting force from the wrist when being worn on the wrist, and includes a first airtight maintaining section (10) which keeps the inside of the case body and ambient air airtight; and a second airtight maintaining section (20) which keeps the two spaces divided by the housing (7) airtight. The first air tight maintaining section and the second air tight maintaining section are arranged so as to line up along the direction of the axis of the case body. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a wrist mounting device.

For example, a wristwatch is known as a wrist mounting device. A conventional wristwatch includes a timepiece module in a main body case, and the back surface side of the main body case is shielded by a metal back cover, so that the airtightness in the main body case is maintained.
Recently, a wristwatch having a blood pressure measurement function has been proposed (for example, Patent Document 1). As shown in FIG. 10, the wristwatch 100u includes a cuff 3u that is an air bag that is detachably attached to the outside of the back cover 2u of the main body 1u. When measuring blood pressure, the wristwatch 100u supplies air to the cuff 3u. Send it in and press it against the wrist of the person being measured. Then, the air pressure in the cuff 3u is changed by the pulsation of the blood vessel, the pressure receiving unit 4u detects the change in the air pressure, measures the blood pressure, and the blood pressure value is displayed on the display screen.
Japanese Utility Model Publication No. 6-45862

By the way, the conventional wristwatch 100u has a problem that the fit and feel at the time of wearing are not good because the back cover 2u is made of a hard material such as metal.
On the other hand, in the case of a wristwatch equipped with the cuff 3u, the cuff 3u is in contact with the wrist, not the back cover 2u of the main body 1u. By providing, the thickness of the cuff 3u is added to the thickness of the main body 1u, and it is difficult to reduce the size of the wristwatch 100u.
Furthermore, the wristwatch 100u has a large number of hermetic portions for airtightness inside, but there is a problem that the wristwatch 100u becomes larger as more airtight portions are provided.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a wrist attachment device that can keep the inside airtight, prevent an increase in size of the device, and improve the fit at the time of attachment.

  In order to solve the above-described problems, the invention described in claim 1 includes, for example, a case body (for example, the case body 2 in FIG. 3) attached to the wrist and the case as shown in FIGS. An elastically deformable first shielding member (for example, the back cover 4 in FIGS. 3 and 4) that contacts the wrist when the body is attached to the wrist and shields the inside of the case body, and is provided inside the case body And a second shielding member (for example, the housing 7 in FIG. 3) that partitions the inside of the case body into two spaces, and the first shielding member is used to keep the case body airtight. A holding unit (for example, the first hermetic holding unit 10 in FIG. 3) and a second hermetic holding unit (for example, for the second shielding member to perform hermetic holding in the two spaces partitioned by the second shielding member) And the second airtight holding part 20) of FIG. Characterized in that the lifting portion and the second sealing element is provided so as to be aligned in the axial direction of the case body.

  According to the first aspect of the present invention, the inside of the case body and the outside air are kept airtight by the first airtight holding part, and the airtightness holding in the two spaces partitioned by the second airtight holding part into the second shielding member. Therefore, the inside of the wrist mounting device can be kept airtight. In addition, since the first airtight holding portion and the second airtight holding portion are provided so as to be aligned in the axial direction of the case body, the wrist mounting device can be reduced in size. In addition, since the first shielding member is formed of a soft material, it is possible to maintain a good fit and feel to the wrist when worn, and, as in the past, a member made of a soft material (for example, superimposed on the shielding member) , Cuff, etc.) is not required, and the size of the apparatus can be prevented from being increased.

  According to a second aspect of the present invention, in the wrist attachment device according to the first aspect, for example, as shown in FIGS. 3 and 4, the first airtight holding portion is a convex formed on the first shielding member. A portion (for example, the convex portion 42 in FIG. 4) abuts on the second shielding member to perform airtight holding.

  According to invention of Claim 2, since the convex part formed in the 1st shielding member contacts the 2nd shielding member, since the crevice between the 1st shielding member and the 2nd shielding member is sealed, The case body can be kept airtight.

  According to a third aspect of the present invention, in the wrist attachment device according to the first or second aspect, for example, as shown in FIG. 5, the second shielding member is formed by a fastening member (for example, the screw 6 in FIG. 5). It is fixed to the case body.

  According to the invention described in claim 3, since the second shielding member is fixed to the case body by the fastening member, the first shielding member and the second shielding member can be separately fixed. In addition, it is possible to independently determine whether or not the second airtight holding portion is airtightly held.

  The invention according to claim 4 is, for example, as shown in FIG. 6, a case body (for example, case body 2 in FIG. 6) to be attached to the wrist, and contact with the wrist when the case body is attached to the wrist. And a first shielding member (for example, the back cover 4b in FIG. 6) that shields the inside of the case body, and a second shield that is provided inside the case body and partitions the inside of the case body into two spaces. 6 (for example, the housing 7 in FIG. 6), and the first shielding member is a first hermetic holding portion (for example, in FIG. 6) for the first shielding member to hold the case body in an airtight manner. A first hermetic holding unit 10) and a second hermetic holding unit (for example, the second hermetic holding unit 20 in FIG. 6) for performing hermetic holding in the two spaces partitioned by the second shielding member. And the second airtight holding part protrudes toward the case body side. The protrusion provided on the first shielding member (for example, the protrusion 41b in FIG. 6) and the case body to be engaged with the protrusion for positioning the first shielding member with respect to the case body. The second airtight holding part is airtightly held by the projecting part being engaged with and abutting on the engaging part, for example, the engaging part 21b of FIG. It is characterized by performing.

  According to the fourth aspect of the present invention, the inside of the case body and the outside air are kept airtight by the first airtight holding portion, and the airtightness holding in the two spaces partitioned by the second airtight holding portion into the second shielding member. Therefore, the inside of the wrist mounting device can be kept airtight. In this case, the first shielding member simultaneously performs positioning of the first shielding member and hermetic holding in the two spaces partitioned by the second shielding member by engaging the projecting portion with the engaging portion and coming into contact therewith. Therefore, the wrist mounting device can be downsized. In addition, since the first shielding member is formed of a soft material, it is possible to maintain a good fit and feel to the wrist when worn, and, as in the past, a member made of a soft material (for example, superimposed on the shielding member) , Cuff, etc.) is not required, and the size of the apparatus can be prevented from being increased. Further, since the projecting portion formed on the first shielding member is engaged with and abutted with the engaging portion formed on the case body, the gap between the case body and the first shielding member is sealed. Since the inside of the body can be kept airtight and the first shielding member can be positioned, the number of parts can be reduced.

  The invention according to claim 5 is, for example, as shown in FIG. 7, a case body (for example, case body 2 in FIG. 7) attached to the wrist, and contact with the wrist when the case body is attached to the wrist. And a first shielding member (for example, the back cover 4c in FIG. 7) that shields the inside of the case body and a second shield that is provided inside the case body and partitions the inside of the case body into two spaces. Member (for example, the housing 7 in FIG. 7), and the first shielding member is a first hermetic holding portion (for example, in FIG. 7) for the first shielding member to hold the case body in an airtight manner. A first hermetic holding unit 10) and a second hermetic holding unit (for example, the second hermetic holding unit 20 in FIG. 7) for performing hermetic holding in the two spaces partitioned by the second shielding member. The second hermetic holding portion protrudes toward the second shielding member. A protrusion (for example, protrusion 41 in FIG. 7) provided on the first shielding member, and the first shielding member to engage with the protrusion to position the first shielding member with respect to the case body. 2. An engaging portion (for example, engaging portion 71 in FIG. 7) provided on the shielding member and a protruding portion (for example, protruding portion 43c in FIG. 7) provided on the protruding portion so as to protrude toward the case body. The second airtight holding portion is characterized in that the protrusion is engaged with the engaging portion and the protrusion comes into contact with the case body to perform airtight holding.

  According to the fifth aspect of the present invention, the inside of the case body and the outside air are kept airtight by the first airtight holding part, and the airtightness holding in the two spaces partitioned by the second airtight holding part into the second shielding member. Therefore, the inside of the wrist mounting device can be kept airtight. In this case, the protruding portion is engaged with the engaging portion, and the protruding portion is in contact with the case body, thereby positioning the first shielding member and maintaining the airtightness in the two spaces partitioned by the second shielding member. Since it can carry out simultaneously with a 1st shielding member, size reduction of a wrist mounting apparatus can be achieved. In addition, since the first shielding member is formed of a soft material, it is possible to maintain a good fit and feel to the wrist when worn, and, as in the past, a member made of a soft material (for example, superimposed on the shielding member) , Cuff, etc.) is not required, and the size of the apparatus can be prevented from being increased. Further, the protrusion formed on the first shielding member is engaged with the engaging portion formed on the second shielding member so that the protrusion comes into contact with the case body, so that the gap between the case body and the first shielding member. Is sealed, the inside of the case body can be kept airtight, and the first shielding member can be positioned, so that the number of parts can be reduced.

  The invention according to claim 6 is, for example, as shown in FIG. 9, a case body (for example, the case body 2 in FIG. 9) that is attached to the wrist, and contacts the wrist when the case body is attached to the wrist. And a first shielding member (for example, a back cover 4d in FIG. 9) that shields the inside of the case body, and a second shield that is provided inside the case body and partitions the inside of the case body into two spaces. Member (for example, the housing 7 of FIG. 9), and the first shielding member is a first hermetic holding portion (for example, FIG. 9) for holding the case body airtightly with the second shielding member. A first hermetic holding unit 10), a second hermetic holding unit (for example, the second hermetic holding unit 20 of FIG. 9) for performing hermetic holding in the two spaces partitioned by the second shielding member, And the second airtight holding portion protrudes toward the second shielding member. In addition, the protrusion (for example, protrusion 41d in FIG. 9) provided on the first shielding member and the first engagement member engage with the protrusion to position the first shielding member with respect to the case body. 2. An engaging portion (for example, an engaging portion 71 in FIG. 9) provided on the shielding member and a protruding portion (for example, a protruding portion 43d in FIG. 9) provided on the protruding portion so as to protrude toward the case body. And the second airtight holding portion is in contact with the projecting portion engaged with the engaging portion, and performs airtight holding by the projecting portion coming into contact with the case body. To do.

  According to the sixth aspect of the present invention, the inside of the case body and the outside air are kept airtight by the first airtight holding part, and the airtightness holding in the two spaces partitioned by the second airtight holding part into the second shielding member. Therefore, the inside of the wrist mounting device can be kept airtight. In this case, the projecting portion is engaged with and abutted with the engaging portion, and the protruding portion is brought into contact with the case body, whereby the first shielding member is positioned and the airtightness in the two spaces partitioned by the second shielding member is obtained. Since the holding can be performed simultaneously with the first shielding member, the wrist mounting device can be downsized. In addition, since the first shielding member is formed of a soft material, it is possible to maintain a good fit and feel to the wrist when worn, and, as in the past, a member made of a soft material (for example, superimposed on the shielding member) , Cuff, etc.) is not required, and the size of the apparatus can be prevented from being increased. Furthermore, the protrusion formed on the first shielding member is engaged with and abuts the engaging portion formed on the second shielding member, and the protrusion formed on the protrusion contacts the case body. Since the gap between the case body and the first shielding member is sealed, the inside of the case body can be kept airtight and the first shielding member can be positioned, so that the number of parts can be reduced.

  The invention according to claim 7 is the wrist mounting device according to any one of claims 1 to 6, for example, as shown in FIGS. (For example, the timepiece module 1 of FIGS. 3 and 6), a fixing member (for example, the fixing member 8 of FIGS. 3 and 6) that fixes the device main body, the fixing member, and the second shielding member And a third hermetic holding part (for example, the third hermetic holding part 30 in FIGS. 3 and 6).

  According to the seventh aspect of the present invention, the device main body is fixed by the fixing member, and the fixing member and the second shielding member are airtightly held by the third airtight holding portion. Can be improved.

  According to an eighth aspect of the present invention, in the wrist attachment device according to the seventh aspect, for example, as shown in FIGS. 3 and 6, the third airtight holding portion includes the fixing member and the second shielding member. And an elastic member (for example, the rubber ring G2 in FIGS. 3 and 6), and the elastic member is elastically deformed to perform airtight holding.

  According to the invention of claim 8, the elastic member is elastically deformed by being sandwiched between the fixing member and the second shielding member. Thereby, since the clearance gap between the contact part of a fixing member and a 2nd shielding member will be sealed, airtight maintenance inside a case body can be performed.

  A ninth aspect of the present invention is the wrist mounting device according to the seventh or eighth aspect, wherein the wrist mounting device is formed between the fixing member and the second shielding member as shown in FIGS. The first air chamber (for example, the first air chamber A1 in FIGS. 3 and 6) and the second air chamber (for example, FIG. 3) formed between the first shielding member and the second shielding member. , 3 to 6 of the second air chamber A2), the first air chamber and the second air chamber communicate with each other, and a hole (for example, an internal pressure variation of the second air chamber is transmitted to the first air chamber). 3, 3 to 6) and detection means provided in the first air chamber for detecting the internal pressure fluctuation in the first air chamber (for example, the pressure sensor S <b> 1 in FIGS. 3 and 3 to 6). And.

  According to the ninth aspect of the present invention, when the first shielding member is elastically deformed due to the acting force from the wrist and the pressure fluctuation in the second air chamber is generated, the pressure fluctuation is the first through the hole. The detection means detects the pressure fluctuation in the second air chamber. Therefore, this apparatus can be used as a portable pulse meter or blood pressure monitor.

  According to the first aspect of the present invention, the inside of the case body and the outside air are kept airtight by the first airtight holding part, and the airtightness holding in the two spaces partitioned by the second airtight holding part into the second shielding member. Therefore, the inside of the wrist mounting device can be kept airtight. In this case, since the first hermetic holding part and the second hermetic holding part are provided so as to be aligned in the axial direction of the case body, the wrist mounting device can be downsized. In addition, since the first shielding member is formed of a soft material, it is possible to maintain a good fit and feel to the wrist when worn, and, as in the past, a member made of a soft material (for example, superimposed on the shielding member) , Cuff, etc.) is not required, and the size of the apparatus can be prevented from being increased.

  According to invention of Claim 2, since the convex part formed in the 1st shielding member contacts the 2nd shielding member, since the crevice between the 1st shielding member and the 2nd shielding member is sealed, The case body can be kept airtight.

  According to the invention described in claim 3, since the second shielding member is fixed to the case body by the fastening member, the first shielding member and the second shielding member can be separately fixed. In addition, it is possible to independently determine whether or not the second airtight holding portion is airtightly held.

  According to the fourth aspect of the present invention, the inside of the case body and the outside air are kept airtight by the first airtight holding portion, and the airtightness holding in the two spaces partitioned by the second airtight holding portion into the second shielding member. Therefore, the inside of the wrist mounting device can be kept airtight. In this case, the first shielding member simultaneously performs positioning of the first shielding member and hermetic holding in the two spaces partitioned by the second shielding member by engaging the projecting portion with the engaging portion and coming into contact therewith. Therefore, the wrist mounting device can be downsized. In addition, since the first shielding member is formed of a soft material, it is possible to maintain a good fit and feel to the wrist when worn, and, as in the past, a member made of a soft material (for example, superimposed on the shielding member) , Cuff, etc.) is not required, and the size of the apparatus can be prevented from being increased. Further, since the projecting portion formed on the first shielding member is engaged with and abutted with the engaging portion formed on the case body, the gap between the case body and the first shielding member is sealed. Since the inside of the body can be kept airtight and the first shielding member can be positioned, the number of parts can be reduced.

  According to the fifth aspect of the present invention, the inside of the case body and the outside air are kept airtight by the first airtight holding part, and the airtightness holding in the two spaces partitioned by the second airtight holding part into the second shielding member. Therefore, the inside of the wrist mounting device can be kept airtight. In this case, the protruding portion is engaged with the engaging portion, and the protruding portion is in contact with the case body, thereby positioning the first shielding member and maintaining the airtightness in the two spaces partitioned by the second shielding member. Since it can carry out simultaneously with a 1st shielding member, size reduction of a wrist mounting apparatus can be achieved. In addition, since the first shielding member is formed of a soft material, it is possible to maintain a good fit and feel to the wrist when worn, and, as in the past, a member made of a soft material (for example, superimposed on the shielding member) , Cuff, etc.) is not required, and the size of the apparatus can be prevented from being increased. Further, the protrusion formed on the first shielding member is engaged with the engaging portion formed on the second shielding member so that the protrusion comes into contact with the case body, so that the gap between the case body and the first shielding member. Is sealed, the inside of the case body can be kept airtight, and the first shielding member can be positioned, so that the number of parts can be reduced.

  According to the sixth aspect of the present invention, the inside of the case body and the outside air are kept airtight by the first airtight holding part, and the airtightness holding in the two spaces partitioned by the second airtight holding part into the second shielding member. Therefore, the inside of the wrist mounting device can be kept airtight. In this case, the projecting portion is engaged with and abutted with the engaging portion, and the protruding portion is brought into contact with the case body, whereby the first shielding member is positioned and the airtightness in the two spaces partitioned by the second shielding member is obtained. Since the holding can be performed simultaneously with the first shielding member, the wrist mounting device can be downsized. In addition, since the first shielding member is formed of a soft material, it is possible to maintain a good fit and feel to the wrist when worn, and, as in the past, a member made of a soft material (for example, superimposed on the shielding member) , Cuff, etc.) is not required, and the size of the apparatus can be prevented from being increased. Furthermore, the protrusion formed on the first shielding member is engaged with and abuts the engaging portion formed on the second shielding member, and the protrusion formed on the protrusion contacts the case body. Since the gap between the case body and the first shielding member is sealed, the inside of the case body can be kept airtight and the first shielding member can be positioned, so that the number of parts can be reduced.

  According to the seventh aspect of the present invention, the device main body is fixed by the fixing member, and the fixing member and the second shielding member are airtightly held by the third airtight holding portion. Can be improved.

  According to the invention of claim 8, the elastic member is elastically deformed by being sandwiched between the fixing member and the second shielding member. Thereby, since the clearance gap between the contact part of a fixing member and a 2nd shielding member will be sealed, airtight maintenance inside a case body can be performed.

  According to the ninth aspect of the present invention, when the first shielding member is elastically deformed due to the acting force from the wrist and the pressure fluctuation in the second air chamber is generated, the pressure fluctuation is the first through the hole. The detection means detects the pressure fluctuation in the second air chamber. Therefore, this apparatus can be used as a portable pulse meter or blood pressure monitor.

Hereinafter, the best embodiment of the wrist mounting device according to the present invention will be described in detail. In the present embodiment, a wristwatch with a pulse measurement function will be described as an example of a wrist attachment device.
(Embodiment 1)
FIG. 1 is a front view of the wristwatch 100. As shown in FIG. 1, a wristwatch 100 is configured by connecting a watch band 80 for attaching the watch body 70 to a wrist to a watch body 70 having a timekeeping function and a time display function. The wristwatch 100 is provided with a display unit 90, and the user can know time and other information from the display unit 90.
FIG. 2 is a bottom view of the wristwatch 100 as viewed from the back side, and the opening of the case body 2 is covered with the back cover 4.
3 is a cross-sectional view of the wristwatch 100 taken along the line III-III in FIG. As shown in FIG. 3, the wristwatch 100 is provided with a case body 2 that is attached to the wrist and accommodates a clock timing unit 1 and the like as a device main body. The case body 2 is formed in a cylindrical shape and is formed from a material such as resin.
On the upper end side of the case body 2, a watch glass 3 that shields the opening on the upper end side of the case body 2 is provided. The watch glass 3 serves as a window for visually checking information such as time displayed on the watch module 1 while protecting the watch module 1 as a device main body provided inside the case body 2 from external impacts. The peripheral portion of the watch glass 3 is provided so as to be in close contact with the upper end of the case body 2, and the close contact portion keeps the air tightly between the inside of the case body 2 and the outside air.

  On the lower end side of the case body 2, a back cover 4 is provided as a first shielding member that contacts the wrist when the case body 2 is attached to the wrist and shields the opening on the lower end side of the case body 2. Yes. The back cover 4 is formed from a soft material such as urethane or silicon that can be elastically deformed by an action force from the wrist. The peripheral edge of the back cover 4 is pressed against the case body 2 by a pressing plate 5 fastened to the case body 2 by screws 6 as fastening members. The pressing plate 5 is formed from a hard material such as stainless steel (SUS steel), for example, and is attached to the case body 2 in a state where the pressing portion 5 is pressed to such an extent that the peripheral edge of the back cover 4 is slightly deformed. Further, as shown in FIG. 4, a projecting portion 41 that protrudes toward the watch glass 3 side is formed in the peripheral direction of the back cover 4 in the axial direction of the case body 2 over the entire periphery of the back cover 4. A protrusion 42 that protrudes toward the watch glass 3 side is formed on the inner side of the protrusion 41.

  The case body 2 is provided with a housing 7 as a second shielding member that partitions the inside of the case body 2 into two spaces. The housing 7 protects the timepiece module 1 from external impacts and is formed of a hard material such as acrylonitrile butadiene styrene resin (ABS resin). The housing 7 is fixed to the case body 2 with the peripheral edge portion sandwiched between the case body 2 and the back cover 4. An engaging portion 71 that engages with the protruding portion 41 of the back cover 4 is formed at the peripheral portion on the lower surface side of the housing 7, and when the protruding portion 41 engages with the engaging portion 71, the back cover 4. Is positioned so as not to shift. Further, the lower surface of the housing 7 is in contact with the convex portion 42 of the back cover 4 on the inner side of the engaging portion 71, and this contact portion holds the airtightness between the back cover 4 and the housing 7. It functions as the airtight holding part 10. Further, a plate 51 formed of a hard material such as stainless steel (SUS steel), for example, is attached to the outer surface side of the back cover 4 so that the back cover 4 directly receives external impacts or object contact. It is configured not to receive it.

  Further, a rubber ring G1 as an elastic member is provided at a contact portion between the case body 2 and the housing 7, and the rubber ring G1 is elastically sandwiched between the surface of the case body 2 and the upper surface of the housing 7. By being deformed, it functions as the second hermetic holding unit 20 that performs hermetic holding. The first hermetic holding unit 10 and the second hermetic holding unit 20 are provided so as to be arranged on a substantially straight line in the axial direction of the case body 2.

A recess 72 is formed near the center of the upper surface of the housing 7, and a fixing member 8 for fixing the timepiece module 1 to the housing 7 is fixed to the housing 7 with screws 61 on the upper surface of the housing 7. . That is, the recess 72 is partitioned from the inside of the case body 2 by the fixing member 8, and the first air chamber A1 is formed. A rubber ring G2 is provided between the edge of the recess 72 and the fixing member 8, and this rubber ring G2 is sandwiched between the surface of the recess 72 and the fixing member 8 and elastically deformed. The first air chamber A1 functions as a third airtight holding portion 30 that holds the airtightness. Further, the recess 72 is provided with a pressure sensor S1 as detection means for detecting pressure fluctuation in the first air chamber A1.
Further, the back cover 4 has a substantially convex shape projecting downward, whereby a second air chamber A <b> 2 is formed between the back cover 4 and the lower surface of the housing 7. Further, the housing 7 is formed with a hole 73 that communicates the first air chamber A1 and the second air chamber A2 and transmits the internal pressure fluctuation in the second air chamber A2 to the first air chamber A1. Thereby, when the back cover 4 is elastically deformed by the acting force from the wrist and the internal pressure fluctuation in the second air chamber A2 occurs, the pressure fluctuation is transmitted to the first air chamber A1 through the hole 73. The pressure sensor S1 detects the pressure fluctuation in the second air chamber A2. Therefore, the wristwatch 100 can be used as a portable pulse meter or blood pressure monitor.

  5 is a cross-sectional view of the wristwatch 100 taken along the line VV in FIG. As shown in FIG. 5, the case body 2 in this cross section is formed such that the axial length on the inner peripheral side is shorter than the axial length on the outer peripheral side. The peripheral portion of the housing 7 is disposed so as to be close to the inner peripheral surface of the case body 2, and is fixed to the case body 2 with screws 6. A pressing plate 5 for pressing the back cover 4 is fixed to the housing 7 together with the back cover 4 by other screws (not shown).

According to the wristwatch 100 in the first embodiment, the first airtight holding portion 10 holds the inside of the case body 2 and the outside air tightly, and the second airtight holding portion 20 holds the airtightness in the two spaces partitioned by the housing 7. Therefore, the wristwatch 100 can be kept airtight. In this case, since the first airtight holding portion 10 and the second airtight holding portion 20 are provided so as to be aligned in the axial direction of the case body 2, the wristwatch 100 can be reduced in size. In addition, since the back cover 4 is formed of a soft material, it is possible to maintain a good fit and feel to the wrist when worn, and a soft material member (e.g. There is no need to provide a cuff or the like, and the watch 100 can be prevented from being enlarged.
The rubber ring G1 is elastically deformed by being sandwiched between the case body 2 and the housing 7. Thereby, since the clearance gap between the contact part of case body 2 and housing 7 is sealed, airtight maintenance inside case body 2 can be performed.
Furthermore, since the convex part 42 formed in the back cover 4 contacts the housing 7, the gap between the back cover 4 and the housing 7 is sealed, so that the inside of the case body 2 can be kept airtight.

The rubber ring G2 is elastically deformed by being sandwiched between the fixing member 8 and the housing 7. Thereby, since the clearance gap between the fixing member 8 and the housing 7 is sealed, airtight maintenance inside the case body 2 can be performed.
Furthermore, when the back cover 4 is elastically deformed by the acting force from the wrist and the internal pressure fluctuation in the second air chamber A2 occurs, the pressure fluctuation is transmitted to the first air chamber A1 through the hole 73, The pressure sensor S1 detects the pressure fluctuation in the second air chamber A2. Therefore, the wristwatch 100 can be used as a portable pulse meter or blood pressure monitor.
Further, with such a structure, in the process of assembling the wrist watch 100, the housing 7 can be fixed to the case body 2 before the back cover 4 can be attached. It is possible to easily check whether or not

(Embodiment 2)
Next, a second embodiment of the wristwatch according to the present invention will be described with reference to FIG. The feature of the second embodiment is that in the first embodiment, the function of the rubber ring G1 that constitutes the second hermetic holding portion 20 is provided in the back cover 4, and therefore only different points will be described and other common features will be described. The parts to be given are given the same reference numerals and the description thereof will be omitted.
As shown in FIG. 6, the case body 2b of the wristwatch 200 is formed with an engaging portion 21b that engages with the protruding portion 41b of the back cover 4b at the lower end portion. The length of the protruding portion 41b in the protruding direction is formed longer than the depth of the engaging portion 21b, in other words, the length along the vertical direction of the case body 2b. Thus, when the protruding portion 41b is engaged with the engaging portion 21b and the pressing plate 5 is fixed to the case body 2b, the protruding portion 41b is pressed by the pressing plate 5 and comes into contact with the engaging portion 21b. It is elastically deformed and functions as a second hermetic holding part 20 that holds the inside of the case body 2b.

  According to the wristwatch 200 according to the second embodiment, the first airtight holding portion 10 holds the inside of the case body 2 b and the outside air tightly, and the second airtight holding portion 20 holds the airtightness in the two spaces partitioned by the housing 7. Therefore, the inside of the wristwatch 200 can be kept airtight. In this case, the projecting portion 41b is engaged with and brought into contact with the engaging portion 21b, whereby the positioning of the back cover 4b and the airtight maintenance in the two spaces partitioned by the housing 7 can be performed simultaneously by the back cover 4. Therefore, the wristwatch 200 can be downsized. Moreover, since the protrusion part 41b formed in the back cover 4b engages and contacts the engaging part 21b formed in the case body 2b, the gap between the case body 2b and the back cover 4b is sealed. Since the inside of the case body 2b can be kept airtight and the back cover 4b can be positioned, the number of parts can be reduced.

(Embodiment 3)
Next, a third embodiment of the wristwatch according to the present invention will be described with reference to FIGS. The feature of the third embodiment is that in the first embodiment, the function of the rubber ring G1 constituting the second hermetic holding portion 20 is provided in the back cover 4, and therefore only different points will be described and other common features will be described. The parts to be given are given the same reference numerals and the description thereof will be omitted.
As shown in FIGS. 7 and 8, the back cover 4 c of the wristwatch 300 is formed with a protruding portion 43 c that protrudes toward the case body 2 on the outer peripheral surface facing the case body 2. The protruding length of the protrusion 43 c is formed such that the length obtained by adding the protruding length and the width of the protruding portion 41 is larger than the width of the engaging portion 71 of the housing 7. Thereby, when the protrusion 41 is engaged with the engaging portion 71, the protrusion 43 c abuts against the inner peripheral surface of the case body 2 and elastically deforms, and the second airtight holding that keeps the airtight inside the case body 2 is performed. It functions as the unit 20.

  According to the wristwatch 300 in the third embodiment, the first airtight holding portion 10 holds the inside of the case body 2 and the outside air tightly, and the second airtight holding portion 20 holds the airtightness in the two spaces partitioned by the housing 7. Thus, the inside of the wristwatch 300 can be kept airtight. In this case, the protruding portion 41 is engaged with the engaging portion 71 and the protrusion 43 c comes into contact with the case body 2, thereby positioning the back cover 4 c and maintaining the airtightness in the two spaces partitioned by the housing 7. Can be performed simultaneously with the case back 4c, so the wristwatch 300 can be downsized. Further, the projecting portion 41 formed on the back cover 4c is engaged with the engaging portion 71 formed on the housing 7 so that the projection 43c comes into contact with the case body 2, so that the case body 2 and the back cover 4c are in contact with each other. Since the gap is sealed, the inside of the case body 2 can be kept airtight and the back cover 4c can be positioned, so that the number of parts can be reduced.

(Embodiment 4)
Next, a fourth embodiment of the wristwatch according to the present invention will be described with reference to FIG. The feature of the fourth embodiment is that in the third embodiment, the protruding length of the protruding portion 41 is longer than that of the engaging portion 71. Therefore, only different portions will be described, and other common portions are the same. The reference numerals are attached and the description is omitted.
As shown in FIG. 9, the protruding length of the protruding portion 41 d of the back cover 4 d in the wristwatch 400 is greater than the depth of the engaging portion 71 of the housing 7, in other words, the length along the vertical direction of the case body 2. It is formed to be long. Thus, when the protruding portion 41d is engaged with the engaging portion 71 and the pressing plate 5 is fixed to the case body 2, the protruding portion 41d is pressed by the pressing plate 5 and comes into contact with the engaging portion 71. It is elastically deformed and functions as a second hermetic holding part 20 that holds the airtight inside the case body 2.
Further, the back cover 4d is formed with a protrusion 43d that protrudes toward the case body 2 on the outer peripheral surface facing the case body 2. The protruding length of the protruding portion 43d is formed such that the length obtained by adding the protruding length and the width of the protruding portion 41d is larger than the width of the engaging portion 71 of the housing 7. Thus, when the protruding portion 41d is engaged with the engaging portion 71, the protruding portion 43d abuts against the inner peripheral surface of the case body 2 and elastically deforms, and the second airtight holding that keeps the inside of the case body 2 airtight is performed. It functions as the unit 20.

  According to the wristwatch 400 in the fourth embodiment, the inside of the case body 2 and the outside air are kept airtight by the first airtight holding part 10, and the airtightness holding in the two spaces partitioned by the housing 7 by the second airtight holding part 20. Therefore, the inside of the wristwatch 400 can be kept airtight. In this case, the protrusion 41d is engaged with the engaging portion 71 and comes into contact with it, and the protrusion 43d comes into contact with the case body 2 so that the positioning of the back cover 4d and the space in the two spaces partitioned by the housing 7 are maintained. Since the airtight holding can be performed simultaneously with the back cover 4d, the wristwatch 400 can be downsized. In addition, since the back cover 4d is formed of a soft material, it is possible to maintain a good fit and feel on the wrist when worn, and a member of a soft material (e.g., overlapped with a shielding member as in the past) It is not necessary to provide a cuff or the like, and the size of the apparatus can be prevented from increasing. Further, the projecting portion 41 d formed on the back cover 4 d is engaged with and abutted on the engaging portion 71 formed on the housing 7, and the projection 43 d formed on the projecting portion 41 d abuts on the case body 2. Thus, since the gap between the case body 2 and the back cover 4d is sealed, the inside of the case body 2 can be kept airtight and the back cover 4d can be positioned, so that the number of parts can be reduced. .

  The present invention is not limited to the above embodiment. For example, the engaging portion is not limited to the case body and may be provided in the housing. Further, the positions of the first hermetic holding part and the second hermetic holding part may be reversed. Other modifications can be made without departing from the scope of the invention.

1 is a schematic plan view of a wristwatch according to Embodiment 1. FIG. 3 is a schematic bottom view of the wristwatch according to Embodiment 1. FIG. 3 is a III-III cross-sectional view of the wristwatch according to Embodiment 1. FIG. 3 is a schematic cross-sectional view of a back cover in Embodiment 1. FIG. 5 is a VV cross-sectional view of the wristwatch according to Embodiment 1. FIG. 6 is a schematic cross-sectional view of a wristwatch according to Embodiment 2. FIG. 6 is a schematic cross-sectional view of a wristwatch according to Embodiment 3. FIG. 6 is a schematic cross-sectional view of a back cover in Embodiment 3. FIG. 6 is a schematic cross-sectional view of a wristwatch according to Embodiment 4. FIG. It is a schematic perspective view of the wristwatch in a prior art.

Explanation of symbols

1 Clock module (device main unit)
2 Case body 3 Watch glass 4 Back cover (first shielding member)
6 Screw (fastening member)
7 Housing (second shielding member)
8 Fixing member 10 1st airtight holding part 20 2nd airtight holding part 21b Engagement part 30 3rd airtight holding part 41 Projection part 41b Projection part 41d Projection part 42 Projection part 43c Projection part 43d Projection part 71 Engagement part 73 Hole part A1 1st air chamber A2 2nd air chamber G1 Rubber ring (elastic member)
G2 Rubber ring S1 Pressure sensor (detection means)
100 wristwatch (wrist wearing device)

Claims (9)

A case body attached to the wrist, an elastically deformable first shielding member that contacts the wrist when the case body is attached to the wrist and shields the inside of the case body, and provided inside the case body, A second shielding member that partitions the inside of the case body into two spaces;
A first airtight holding portion for airtightly holding the first shielding member with respect to the case body; and a second airtight member holding the airtightly in the two spaces partitioned by the second shielding member. A second hermetic holding part,
The wrist mounting device, wherein the first airtight holding portion and the second airtight holding portion are provided so as to be aligned in the axial direction of the case body.   2. The wrist mounting device according to claim 1, wherein the first airtight holding portion performs airtight holding by a convex portion formed on the first shielding member coming into contact with the second shielding member.   The wrist mounting device according to claim 1, wherein the second shielding member is fixed to the case body by a fastening member. A case body attached to the wrist, an elastically deformable first shielding member that contacts the wrist when the case body is attached to the wrist and shields the inside of the case body, and is provided inside the case body, A second shielding member that partitions the interior of the case body into two spaces;
The first shielding member performs hermetic holding in the two spaces partitioned by the first shielding member and the second shielding member for allowing the first shielding member to perform hermetic holding on the case body. A second airtight holding part for,
The second hermetic holding part is a protrusion provided on the first shielding member so as to protrude to the case body side,
An engagement portion provided on the case body so as to engage with the protrusion in order to position the first shielding member with respect to the case body,
The wrist mounting device according to claim 1, wherein the second airtight holding portion performs airtight holding by the projecting portion being engaged with and abutting the engagement portion. A case body attached to the wrist, an elastically deformable first shielding member that contacts the wrist when the case body is attached to the wrist and shields the inside of the case body, and is provided inside the case body, A second shielding member that partitions the interior of the case body into two spaces;
The first shielding member performs hermetic holding in the two spaces partitioned by the first shielding member and the second shielding member for allowing the first shielding member to perform hermetic holding on the case body. A second airtight holding part for,
The second hermetic holding part is a protrusion provided on the first shielding member so as to protrude toward the second shielding member;
An engaging portion provided on the second shielding member so as to engage with the protruding portion in order to position the first shielding member with respect to the case body;
A protrusion provided on the protrusion so as to protrude toward the case body,
The wrist mounting device according to claim 1, wherein the second airtight holding portion performs airtight holding when the protrusion is engaged with the engaging portion and the protrusion comes into contact with the case body. A case body attached to the wrist, an elastically deformable first shielding member that contacts the wrist when the case body is attached to the wrist and shields the inside of the case body, and provided inside the case body, A second shielding member that partitions the interior of the case body into two spaces;
The first shielding member has a first hermetic holding portion for holding the case body in an airtight manner with the second shielding member, and an airtight holding in two spaces partitioned by the second shielding member. A second airtight holding part for performing,
The second hermetic holding part is a protrusion provided on the first shielding member so as to protrude toward the second shielding member;
An engaging portion provided on the second shielding member so as to engage with the protruding portion in order to position the first shielding member with respect to the case body;
A protrusion provided on the protrusion so as to protrude toward the case body,
The wrist mounting device according to claim 1, wherein the second airtight holding portion is in contact with the projecting portion being engaged with the engaging portion, and is airtightly held by the protrusion being in contact with the case body. A device body housed inside the case body;
A fixing member for fixing the device body;
The wrist mounting device according to any one of claims 1 to 6, further comprising a third airtight holding portion that performs airtight holding between the fixing member and the second shielding member. The third hermetic holding part includes an elastic member provided between the fixing member and the second shielding member,
The wrist mounting device according to claim 7, wherein the elastic member is hermetically held by being elastically deformed. A first air chamber formed between the fixing member and the second shielding member;
A second air chamber formed between the first shielding member and the second shielding member;
A hole for communicating the first air chamber and the second air chamber, and transmitting an internal pressure fluctuation of the second air chamber to the first air chamber;
A detecting means provided in the first air chamber for detecting an internal pressure fluctuation in the first air chamber;
The wrist mounting device according to claim 7 or 8, further comprising:

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