JP2006014947A - Electronic device to be worn on arm - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electronic device to be worn on an arm, capable of inhibiting the upsizig of the device to the minimum while having a rotary bezel and a sensor. <P>SOLUTION: The electronic device 1 to be worn on an arm comprises an annular case 10 with a display area D at the center, the rotary bezel 30 mounted on the case 10 rotatable in the direction A around the display area of the case 10, having a window 36 at one position in the circumferential direction A, and the sensor 70 disposed at a position along the rotational trajectory of the window 36 of the rotary bezel and behind the rotary bezel 30. The sensor 70 is for sensing the state of a subject F mounted on the front face of the window 36 when the window 36 is at a rotation position facing the sensor 70. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an arm-mounted electronic device such as a wristwatch, and more particularly to an arm-mounted electronic device including a sensor that senses the state of a subject such as a pulse.

  Electronic wristwatches with a pulse detection function in which a pulse detector is provided on one side of the case of the electronic wristwatch have been proposed (Patent Document 1 and Patent Document 2).

  However, in this type of electronic timepiece with a pulse detection function, one side of the case is projected to provide a pulse detection unit (Patent Document 1), or one side of the display area of the electronic wristwatch is substantially provided. A notch is provided with a pulse detection part (Patent Document 2), and it is difficult to avoid an increase in the size of the case as a whole or a reduction in the display area due to the provision of the pulse detection part.

  In this type of electronic timepiece with a pulse detection function, the pulse detection operation by the pulse detection unit is performed as one of a plurality of types of operations (functions). For this purpose, it is necessary to press a plurality of pushbutton switches in an appropriate order and an appropriate number of times, and the operation is complicated and complicated and difficult for the user to understand.

  On the other hand, the wristwatch itself having an annular case with a display area in the center and a rotating bezel with a mark indicating a rotation position with respect to the case is proposed. (For example, Patent Document 3). In Patent Document 3, an electronic device main body that is housed in a case and can perform a plurality of types of timepiece operations is provided, and different types of timepiece operation instructions are given to the electronic device main body according to the rotational position that the rotating bezel takes with respect to the case. It is also proposed to emit. As a wristwatch with a rotating bezel, for example, there is a wristwatch with a scale indicating a time (minute or the like) as a mark on the rotating bezel, such as a diver's clock.

However, the wristwatch with a rotating bezel proposed in Patent Document 3 performs various clock functions such as alarm setting, stopwatch operation, and timer operation according to the rotational position of the rotating bezel indicated by the mark (character). However, it does not have a pulse detection function.
JP 2002-165768 A (for example, FIG. 1 and its description) JP-A-7-116132 (for example, FIG. 4 and its description) Japanese Utility Model Publication No. 7-18294 (for example, FIG. 1 and its description)

  The present invention has been made in view of the above points, and an object of the present invention is to provide an arm-mounted electronic device that includes a rotating bezel and a sensor and that can be kept to a minimum in size. There is.

  In order to achieve the above object, the wrist-worn electronic device of the present invention is mounted on an annular case having a display region at the center and a case that is rotatable around the display region of the case. A rotating bezel provided with a window at a location, and a sensor disposed in a portion of the case along a rotational trajectory of the rotating bezel window and behind the rotating bezel, the window facing the sensor And detecting the state of the subject placed on the front surface of the window when the rotating position is taken.

  In the wrist-worn electronic device according to the present invention, “a rotating bezel having a window in one circumferential direction and a portion of the case along a rotating track of the rotating bezel and positioned behind the rotating bezel. And a sensor that senses the state of the subject placed on the front surface of the window when the window takes a rotational position facing the sensor. Rotate the rotating bezel with respect to the case so that the window is facing the sensor, and place the subject on the rotating bezel window (for example, press your finger). Sensing of the condition of the specimen can be performed. Here, in the arm-mounted electronic device of the present invention, since the “rotating bezel has a window at one place in the circumferential direction”, it is not necessary to provide the sensor outside the outer periphery of the rotating bezel. In addition, since the sensor does not have to be provided on the inner side of the inner periphery of the rotating vessel, it is possible to avoid a reduction in the display area at the center of the case.

  Here, as long as the detection operation by the sensor is possible, the window may be an opening whose entire circumference is surrounded by the peripheral wall or a notch that lacks a part of the peripheral wall. Further, the opening or notch may be a simple hole (one having the entire peripheral wall or a part lacking the peripheral wall), or the hole may be formed of a window forming material. When the sensor is an optical sensor including a light emitting unit and a light receiving unit, the window forming material is made of a material that allows transmission of light having a frequency used for detection. Typically, a similar window is formed on the front surface of the sensor disposed in the case.

  Typically, only one window of the rotating bezel is provided at a specific location in the circumferential direction. However, if desired, windows may be provided at other locations (in the circumferential direction) other than the one location.

  In the wrist-worn electronic device of the present invention, the sensor typically measures the pulse of a subject such as a finger pressed against the front of the window when the window of the rotating bezel takes a rotational position facing the sensor. It consists of a sensing pulse sensor. The pulse sensor may be an optical sensor or another type of sensor such as an ultrasonic sensor. As long as the state of the subject placed on the front surface of the window can be detected, other types of sensors other than the pulse sensor may be used.

  In the arm-mounted electronic device according to the present invention, the rotating bezel may include a mark attached to the entire circumferential direction like the scale of a diver's watch. Specifically, an electronic device main body that is housed in a case and capable of performing a plurality of types of operations (functions) is provided, and instructions for different types of operations (functions) are given depending on the rotational position that the rotating bezel takes with respect to the case. It is configured to be emitted to the main body.

  In that case, the electronic device main body detects the state of the subject sensed by a sensor (for example, a pulse sensor) as one of the plurality of types of operations (functions) (for example, the number of pulses per unit time (minute)) As a whole and function as a pulse meter. Moreover, in this arm-mounted electronic device, a detector (for example, a pulse meter) corresponding to the electronic device main body according to the rotation bezel itself being positioned at a rotational position where the window faces a sensor (for example, a pulse sensor). ), Even though the arm-mounted electronic device can perform a plurality of types of operations, a specific type of operation (for example, an operation as a pulse meter) is performed. This operation can be suppressed to a minimum or no operation is required, and the operation is easy to understand.

  Although the electronic device main body of the wrist-worn electronic device of the present invention may perform any kind of operation, it typically has a clock function that serves as a clock as at least a part.

  Next, an electronic wristwatch with a pulsometer as an arm-mounted electronic device according to a preferred embodiment of the present invention will be described based on a preferred example shown in the accompanying drawings.

  The electronic wristwatch 1 with a pulse meter according to a preferred embodiment of the present invention shown in FIGS. 1 to 5 has a substantially annular case 10 as a whole, as can be seen from the sectional view of FIG. The case 10 integrally includes a small-diameter annular portion 11 on the front side and a large-diameter annular portion 12 on the back side.

  The front-side annular portion 11 has an annular plate shape extending in the radial direction, and an inner peripheral wall 13 includes an annular flange portion 14 that protrudes inward to define the display region D by the inner peripheral surface 14a. The watch glass 2 is press-fitted and fitted to the inner peripheral wall 13 up to the annular flange portion 14 through packing. The front-side annular portion 11 further includes a through hole 15 including a large diameter hole portion 15a and a small diameter hole portion 15b at the 6 o'clock position in the case of an analog timepiece, and the large diameter hole portion 15a of the through hole 15 is provided. The transparent window member 16 is inserted and fixed so as to be placed on the step portion 15c between the hole portions 15a and 15b. The transparent window member 16 only needs to transmit light to be received by a light receiving unit 73 of a pulse sensor 70 described later.

  The rear-side large-diameter annular portion 12 includes a substantially cylindrical main body portion 17 extending in parallel with the front-rear direction Z, and a front portion of the extending end 18a extending radially inward from the front-side end portion 17a of the main body portion 17. And a radially extending annular connecting portion 18 continuously connected to the back surface portion of the radially outer end 11a of the front side small diameter annular portion 11. The annular connecting portion 18 has through holes 19p, 19q, 19r, 19s, 19t, and 19u at equal intervals in the circumferential direction A of the electronic device 1 (see FIG. 4). The pin 20p, 20q, 20r, 20s, 20t, 20u (see FIG. 4, when not distinguished from each other) is formed in each of the through holes 19p, 19q, 19r, 19s, 19t, 19u extending in the Z direction. Are generally slidably fitted in the Z1 and Z2 directions.

  A rotating bezel 30 is fitted on the front side of the case 10 so as to be rotatable in both directions A1 and A2 in the circumferential direction A around a central axis C extending in the Z direction. The rotating bezel 30 may be mounted so as to be rotatable only in any one direction A1 or A2. More specifically, the rotating bezel 30 integrally includes an annular plate-shaped front part 31, an intermediate annular part 32, and a rear side engaging part 33. That is, the annular plate-shaped front surface portion 31 of the rotating bezel 30 is in sliding contact with the annular front surface 11b of the front-side small-diameter annular portion 11 of the case 10 at the annular back surface 31a. The intermediate annular portion 32 is fitted with a ring-shaped engagement portion 21 formed on the outer periphery 11c of the front-side small-diameter annular portion 11 with a packing 32b disposed in a circular groove portion 32a on the inner peripheral wall. The back surface side annular surface or the annular back surface portion 34 serving as a pressing portion is in sliding contact with the front surface 18b of the annular connection portion 18. Further, the rear side engaging portion 33 is fitted into the annular groove portion 18b on the outer periphery of the front end portion of the annular connecting portion 18 of the case 10 by the annular protrusion portion 33a on the inner peripheral wall, and prevents the rotation bezel 30 from being detached from the case 10. The rotation bezel 30 is allowed to rotate in the A direction with respect to the case 10.

  In the above, as long as the rotating bezel 30 can rotate in the A direction with respect to the case 10 while the annular surface 34 of the rotating bezel 30 is maintained substantially in sliding contact with or close to the surface 18b of the case 10, The shapes of the rotating bezel 30 and the case 10 may be different. For example, the planar shape of the outer edge portion 11a and the groove portion 18 of the front-side annular portion 11 of the case 10 is substantially circular (the envelope is circular), and the corresponding inner peripheral portion of the rotating bezel 30 and the planar surface of the protruding portion 33a. As long as the shape is substantially circular (the envelope is circular), the planar shape of the other portions may not be circular.

  As shown in FIGS. 3 to 5, a concave portion 35 is formed at a radial position corresponding to the through hole 19 of the case 10 in the annular back surface portion 34 of the intermediate annular portion 32, and the concave portion 35 is a specific through hole. When it is at the rotational position facing the hole 19 (ie, 19p, 19q, 19r, 19s, 19t or 19u), it is inserted into the through hole 19 (19p, 19q, 19r, 19s, 19t or 19u) at the facing position. The corresponding pin 20 (that is, 20p, 20q, 20r, 20s, 20t, or 20u) is displaceable so that the top 20a protrudes from the hole 19 in the Z1 direction and fits into the recess 35.

  In addition, at least one of the side edges 35a and 35b of the recess 35 is inclined so that the top 20a of the pin 20 fitted in the recess 35 is removed from the recess 35 as the rotation bezel 30 rotates in the A direction. It has become. Here, the top portion 20a of the pin 20 may be rounded so that the insertion / removal of the top portion 20a of the pin 20 with respect to the concave portion 35 can be easily performed. On the other hand, in order to allow the rotating bezel 30 to rotate only in one direction, for example, only in the A2 direction, for example, only the side edge 35b of the recess 35 is inclined and the side edge 35a is rotated in the rotational direction (circumferential). It may be a locking surface extending perpendicularly to the direction.

  Further, the annular plate-like front surface portion 31 of the rotating bezel 30 is formed with a window 36 in the form of an opening at one circumferential position at the same radial position as the through hole 15 of the case 10. When taking a specific rotational position, the window portion 36 is aligned with the through-hole 15. The window portion 36 may be a simple through hole (opening), and a transparent window material similar to the window member 16 may be disposed in the window portion. In this case, the window member 16 can be minimized. Further, instead of the window 36 having a hole surrounded by a wall part, the right side wall part 36a of the window part 36 in FIG. You may open to an outer peripheral surface.

  As shown in FIGS. 1A and 1B, the front surface portion 31 of the rotating bezel 30 and the surface 37 of the central annular portion 32 are spaced apart in the circumferential direction by “TIME”, “AL-1”. ”,“ AL-2 ”,“ TIMER ”,“ CHRONO ”and“ PULSE ”characters 38p, 38q, 38r, 38s, 38t, 38u as marks indicating operation modes (when not distinguished from each other or collectively (Represented by reference numeral 38). Here, “PULSE” represents an operation mode as a pulse meter. “TIME” represents the operation / setting state as a clock in the normal hand movement mode, “AL-1” and “AL-2” represent mutually independent alarm (time) setting modes, and “TIMER” represents a timer. "CHRONO" represents an operation mode as a stopwatch. One of six types of character marks 38p, 38q, 38r, 38s, 38t, and 38u is attached to the “Δ” mark 22 attached to the surface of the case 10 at the front side position corresponding to the 6 o'clock position of the analog timepiece. When the rotating bezel 30 is positioned at such a rotational position, the pins 20p, 20q, 20r, 20s, 20t or 20u inserted in the corresponding through holes 19p, 19q, 19r, 19s, 19t or 19u, respectively. Faces the recess 35 of the rotating bezel 30, and its head 20 a can enter the recess 35. In addition, when the outer peripheral side wall part 36a of the window part 36 is notched, in FIG. 1, the mark of PULSE is described in other parts, such as a part inside a radial direction rather than the window part 36, or this notch part is shown. It is written in the circumferential direction across the bridge or replaced with a shorter mark.

  In the central portion of the chamber 23 defined by the case 10 and the watch glass 2 in the thickness direction Z, the main board 40 constituting the circuit block is fixed and arranged on the annular connecting portion 18 by a fixing means such as a bolt 51. ing. A panel frame 50, a liquid crystal display panel 4 supported by the panel frame 50, and a backlight 5 such as an EL panel fixed to the liquid crystal display panel 4 are arranged on the front side of the main substrate 40 in the chamber 23. A battery frame 60 and a battery (not shown) supported by the battery frame 60 are disposed on the back surface 45 side of the main substrate 40. Reference numeral 6 denotes a terminal such as a conductive rubber for elastically supporting the liquid crystal display panel 4 and inputting a signal to the glass substrate of the panel 4.

  A pulse sensor receiving hole 51 is formed in a portion of the panel frame 50 facing the through hole 15 of the case 10, and the main substrate 40 faces the through hole 15 of the case 10 and the pulse sensor receiving hole 51 of the panel frame 50. A terminal portion 41 for mounting a pulse sensor is formed at the site to be operated.

  The main board 40 is in the form of a circuit block in which various electric / electronic components (not shown) constituting the electronic equipment main body are mounted on the circuit board main body 42, and forms the electronic equipment main body as a whole.

  A pulse sensor 70 is attached to the pulse sensor mounting terminal portion 41 of the main body portion 42 of the main board 40 by the terminal portion 71. For example, the pulse sensor 70 includes a light emitting unit 72 and a light receiving unit 73, and the light receiving unit 73 detects reflected light reflected from the test unit of the subject out of the light emitted from the light emitting unit 72. In this example, the flow fluctuation of hemoglobin accompanying the pulsation of the blood flow flowing through the blood vessel forming the test part of the finger F as the test object pressed against the upper portion of the window 36 of the rotating bezel 30 is detected as the intensity fluctuation of the reflected light. Detect blood flow pulsations. However, as long as the pulse can be detected, the sensor 70 may be replaced with another sensor that detects a frequency variation of the ultrasonic wave caused by the Doppler effect. In addition, the sensor may be other than a pulse sensor that detects a pulse as long as it is of a type that uses the window 36. The window 36 may be used as another type of signal transmission or propagation path such as a conductive path or a magnetic path instead of being used as a light or sound passage.

  The main board 40 further has regions 44p, 44q, 44r, 44s, 44t, and 44u facing the Z direction with respect to each of the six through holes 19p, 19q, 19r, 19s, 19t, and 19u19 of the case 10 (see FIG. 4 is represented by reference numeral 44 when not distinguished from each other or collectively referred to as 44), and switches 80p, 80q, 80r, 80s, 80t, and 80u (see FIG. 4, reference numeral 80 when not distinguished from each other or collectively referred to). Represented by).

  Each switch 80 has a fixed contact portion 81 formed in the region 44 in the back surface 45 of the main substrate 40 and a movable contact spring portion 82 protruding from the back surface 45 of the main substrate 40 in the region 44. The movable contact spring portion 82 is fixed at its base portion 82a by a screw 82b or the like. More specifically, the fixed contact portion 81 is located at a position that coincides with the through hole 19 in the circumferential direction A, and is located in a range closer to the central axis C than the through hole 19 (see FIG. 2 in addition to FIG. 4). On the other hand, as shown in the upper left portion of the battery frame 60 shown in FIG. 4, the movable contact spring portion 82 is located on the rear surface of the main board 40 at a position slightly away from the through hole 19 in the circumferential direction A. A radial protrusion 83 that protrudes outward from the outer edge 46 of the main substrate 40 from 45, and the outer edge 46 at a distance G from the protruding end 83 a of the protrusion 83 to the outer edge 46 of the main substrate 40. A circumferentially extending portion 84 extending to a circumferential position facing the through-hole 19 along with the extending end portion 85 of the circumferentially extending portion 84 to a position where it overlaps the fixed contact portion 81 inward in the radial direction. And an extended movable contact support portion 86. A movable contact portion 87 is formed at the distal end portion of the movable contact support portion 86 so as to be able to contact with and separate from the fixed contact portion 82 in the Z1 and Z2 directions. In each switch 80, the extending end portion 85 of the circumferential extending portion 84 of the movable contact spring portion 82 is located on the extension of the corresponding through hole 19 of the case 10 and is inserted through the through hole 19. Abutting on the lower end portion 20b of the pin 20, a biasing force in the Z1 direction is constantly exerted on the corresponding pin 20.

  The battery frame 60 has circumferential portions 62p, 62q, 62r, 62s, 62t, and 62u corresponding to the switches 80p, 80q, 80r, 80s, 80t, and 80u (that is, 80) in the peripheral surface 61 (see FIG. 4). A notch portion or groove portion 63p that allows the movable contact support portion 86 to move in the Z direction from the end portion 85 of the movable contact spring portion 82 to the movable contact portion 87). , 63q, 63r, 63s, 63t, and 63u (see FIG. 4; when not distinguished from each other or generically referred to as 63). When there is a possibility that the circumferentially extending portion 84 of the movable contact spring portion 82 may hit the outer peripheral portion 61 of the battery frame 60, the circumferentially extending portion of each switch 80 on the substrate side surface 64 of the battery frame 60. A clearance portion (recessed portion or notch portion) 67a (see the left side portion of FIGS. 2 and 3) that allows a free Z-direction displacement of the circumferentially extending portion 84 in a peripheral portion or peripheral region 65 that is close to or faces 84. Form it. In this example, the wall portion 66 of the battery frame 60 extends in the radial direction to the back side of the pulse sensor 70 at the 6 o'clock side position (lower position in FIG. 3) where the pulse sensor 70 is disposed (in the case of an analog watch). Therefore, an escape portion as shown by a broken line 67 is formed with respect to the movable contact spring portion 82 of the switch 80 located in the lower left of FIG.

  The battery frame 60 also includes a recess 68 that allows the terminal portion 71 of the pulse sensor 70 to be disposed, and various recesses that permit the disposition of various electric and electronic components (not shown) that constitute the main board 40. Or it has uneven parts.

  In the electronic wristwatch 1 with a pulse meter, 7 is a back cover (FIGS. 2 and 3), 8 is a band ((a) and (b) in FIG. 1), and the main body 1a with the case 10 of the timepiece 1 is The band 8 is attached to the user's wrist W ((a) and (b) of FIG. 1). Reference numeral 25 denotes a packing or a seal ring.

  Next, operations and operations of the electronic wristwatch 1 with the pulse meter configured as described above will be described.

  The user turns the rotating bezel 30 in the A1 direction or the A2 direction with the electronic wristwatch 1 with a pulse meter attached to the wrist W. Mark 38p, 38q, 38r, 38s, 38t or 38u, that is, the characters “TIME”, “AL-1”, “AL-2”, “TIMER”, “CHRONO”, or “PULSE” are opposed to the arrow 22 When the rotating bezel 30 is in the rotation position between the positions, each pin 20 is in a state of contacting the bottom surface 34 of the rotating bezel 30 at the top portion 20a, so that the movable contact spring portion of the corresponding switch 80 at the lower end portion 20b. The end portion 85 of the circumferentially extending portion 84 of 82 is pushed down in the Z2 direction, the contact portion 87 of the switch 80 is kept away from the fixed contact portion 81, and the switch 80 is kept off. This OFF state of the switch 80 corresponds to the state shown on the left side in FIG. 2 (note that the right part of FIG. 2 is ignored here).

  On the other hand, for example, as shown in FIG. 1A, when the rotating bezel 30 is positioned such that the character 38q “TIME” is positioned at the arrow mark 22, the bottom surface 34 of the rotating bezel 30 is The concave portion 35 takes a rotational position facing the top portion 20a of the pin 20 (ie, pin 20p) corresponding to the “TIME”, and the circumferential extension portion 84 of the movable contact spring portion 82 of the corresponding switch 80 (ie, 80p). The top 20a of the pin 20 that has received the elastic biasing force in the Z1 direction is fitted into the recess 35 (see FIG. 5). As a result, the movable contact portion 87 of the corresponding switch 80p comes into contact with the fixed contact portion 81, so that “TIME” can be adjusted and displayed. At this time, the five pins 20q, 20r, 20s, 20t, or 20u other than the pin 20p corresponding to “TIME” have a top portion 20a at the bottom surface of the rotating bezel 30 as shown in the left side portion of FIG. 34, the other five modes are prohibited from entering a new setting state.

  Similarly, for example, as shown in FIG. 1B, when the rotating bezel 30 is positioned so that the letter “PULSE” 38 u is positioned at the arrow mark 22, the concave portion of the bottom surface 34 of the rotating bezel 30 is formed. 35 takes a rotational position facing the top portion 20a of the pin 20 corresponding to the "PULSE" (that is, the pin 20u), and the elastic extension in the Z1 direction is caused by the circumferentially extending portion 84 of the movable contact spring portion 82 of the corresponding switch 80u. The top 20a of the pin 20u that receives the force fits into the recess 35 (see FIG. 5). As a result, the contact portion 87 of the corresponding switch 80u comes into contact with the fixed contact portion 81, and the related circuit of the main board 40 constituting the electronic device main body is operated, so that it can operate as a “PULSE” mode, ie, a pulse meter. Enter the mode.

  When the pulse detection mode is set, for example, power supply to the light emitting unit 72 such as an LED is started, light emission from the light emitting unit 72 is started, and power supply to the light receiving unit 73 such as a phototransistor is started. Thus, the light receiving element 73 is set in a state where the reflected light can be detected.

  In the operation mode as the pulse meter, as shown in the right part of FIG. 1B and FIG. 2, the pulse sensor 70 is opened through the inner window 16 and the opening of the rotating bezel 30 which is the outer window. Face 36. Therefore, as shown in FIG. 1B, the finger F is pressed onto the rotating bezel 30 so as to cover the outer window 36, and the push button switch 9a supporting the start of operation is pressed to start the pulse detection operation. . When the push button switch 9a or 9b is pressed first and then the finger F is placed on the upper portion of the window 36 to detect the reflected light, the detection unit 73 automatically or switch The pulse detection operation may be started after a predetermined time (for example, about several seconds) has elapsed after the pressing of 9a or 9b. Of course, the light emission from the light emitting unit 72 may be started only when the pushbutton switch 9a or 9b is pressed, or the light receiving unit 73 may be in a detectable state.

  When the light receiving element 73 detects the pulsating fluctuation of the intensity of the reflected light associated with the pulsation of the blood flow among the light emitted from the light emitting element 72, the light receiving element 73 detects the pulsating motion corresponding to the detected pulsation of the reflected light. An output signal is generated, and this output signal is processed by the main board 40 including various processing / arithmetic circuits. For example, an average pulse rate per minute is obtained, and liquid crystal display is performed under the control of the related circuit of the main board 40. Displayed by panel 4.

  In an electronic wristwatch 1 with a pulsometer as an arm-mounted electronic device according to a preferred embodiment of the present invention, a rotating bezel 30 provided with a window 36 at one place in the circumferential direction, and a window of the rotating bezel 30 in the case 10. The fingertip F serving as a subject placed on the front surface of the window 36 when the window 36 takes a rotational position facing the part at a position along the rotation trajectory 36 and behind the rotation bezel 30. Since the pulsation sensor 70 for detecting the pulsation state of the blood flow is provided, the rotation bezel 30 is positioned in the A1 direction or A2 with respect to the case 10 so that the window 36 of the rotation bezel 30 faces the pulse sensor 70. The pulse sensor 30 can sense the pulse by simply rotating the direction and pressing the fingertip F onto the window 36 of the rotating bezel 30 (if desired, by further pressing the start button switch 9a). Further, in this electronic wristwatch 1 with a pulse meter, since the rotating bezel 30 includes the window 36 at one place in the circumferential direction, the pulse sensor 70 does not have to be provided outside the outer periphery of the rotating bezel 30. The size of the liquid crystal panel 4 can be avoided from increasing, and the pulse sensor 70 does not have to be provided on the inner side of the inner periphery of the rotating vessel 30. Can avoid.

  The electronic wristwatch 1 with a pulsometer further includes a main board 40 as an electronic device main body that can be accommodated in the case 10 and can perform a plurality of types of operations, and according to the rotational position that the rotary bezel 30 takes with respect to the case 10. In addition to operation as a pulsometer (PULSE), different types of normal hand movement operation (TIME), two types of alarm operation (AL-1 and AL-2), timer operation (TIMER) and stopwatch operation (CHRONO) The operation instruction is issued to the main board 40 constituting the main body of the electronic device, so that not only the pulse meter can be operated, but the operation as another type of device can be performed only by changing the rotational position of the rotating bezel 30. Moreover, the electronic wristwatch 1 with the pulsometer is configured to enter an operation mode as the pulsometer 30 in response to the rotation bezel 30 being positioned at the rotational position where the window 36 faces the pulse sensor 70. Therefore, the pressing operation by various push button switches is not required or the pressing operation can be suppressed to the minimum, and the operation can be simplified.

  In this example, the sensor 70 is provided at the 6 o'clock position of the analog timepiece, but instead, other positions such as the 12 o'clock position and the 3 o'clock position may be used. Further, instead of providing the single sensor 70, a plurality of sensors may be provided at different positions in the circumferential direction.

  Further, in the above description, as long as one of a plurality of functions can be selectively designated according to the circumferential rotational position of the rotating bezel 30, the pin 20, the concave portion 35, and the switch 80 that enable the selective designation. In addition to the shape and position, the arrangement and structure may be different. For example, a convex portion may be used instead of the concave portion, or a normally open contact switch may be used instead of the normally closed contact switch. Instead of extending in the direction Z, the pins may be omitted in such a way that they extend in the radial direction or the recesses or projections actuate the switch directly.

1 shows an electronic wristwatch with a pulse meter according to a preferred embodiment of the present invention, in which (a) is a plan explanatory view when the rotating bezel is set to the normal hand movement mode, and (b) is a rotating bezel as a pulse meter. The plane explanatory view similar to (a) which shows the state which is set to the operation mode and the pulse is measured. FIG. 4 is a cross-sectional explanatory view of the electronic wristwatch with a pulse meter in FIG. 1 (a cross-sectional explanatory view taken along the line II-II in FIG. 4 in a state where the rotating bezel is rotated so that the pulse sensor can operate). FIG. 1 is a cross-sectional explanatory view of the electronic wristwatch with a pulse meter (in the state where there is a rotating bezel at an intermediate position where no new setting is made in any of the six types of operation modes, along the line III-III in FIG. 4) Cross-sectional explanatory drawing (however, the rotating position where the concave portion of the rotating bezel does not face the pin)). FIG. 2 is a rear view of the electronic wristwatch with a pulsometer of FIG. 1 (however, a part of the battery frame is broken and shown with the back cover removed). Sectional explanatory drawing which shows the state which can set the operation mode in six types of operation modes in the electronic timepiece with a pulse meter of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Electronic wristwatch 1a body with a pulse meter 2 Main body 2 Clock glass 4 Liquid crystal display panel 8 Belt 10 Case 15 Hole 16 Window part 19,19p, 19q, 19r, 19s, 19t, 19u Through-hole 20,20p, 20q, 20r, 20s, 20t , 20u pin 20a top 20b lower end 30 rotating becel 34 bottom (convex)
35 Recess 36 Opening (window)
38, 38p, 38q, 38r, 38s, 38t, 38u Function display mark 40 Circuit board (electronic equipment body)
50 Panel frame 51 Sensor receiving hole 60 Battery frame 63 Notch portion 67 Recess 70 Pulse sensor 72 Light emitting portion 73 Light receiving portion 80 Switch 81 Fixed contact portion 82 Movable spring contact portion 84 Circumferentially extending portion 85 End portion (pin receiving portion)
86 Movable contact support part 87 Movable contact part A, A1, A2 Rotation direction C Rotation center axis D Display area F Finger W Wrist Z, Z1, Z2 Axis extension direction

Claims (4)

An annular case with a display area in the center;
A rotating bezel mounted on the case so as to be rotatable around the display area of the case and having a window in one circumferential direction;
A sensor disposed in a portion of the case along a rotational trajectory of the window of the rotating bezel and behind the rotating bezel, wherein the window takes a rotating position facing the sensor. An arm-mounted electronic device having a device that senses the state of a subject placed on the front surface of a window.   The arm-mounted electronic device according to claim 1, wherein the sensor includes a pulse sensor that detects a pulse of a finger pressed against the front surface of the window when the window of the rotating bezel takes a rotational position facing the sensor. An electronic device main body that can be accommodated in the case and perform a plurality of types of operations,
The arm-mounted electronic device according to claim 1 or 2, wherein an instruction of an operation of a different type is issued to the electronic device main body according to a rotational position taken by the rotating bezel with respect to the case.   The wrist-worn electronic device according to claim 3, wherein the plurality of types of operations of the electronic device main body include a timing operation.

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