WO1999007063A1 - Actionneur, et horloge et element indicateur comportant ledit actionneur - Google Patents
Actionneur, et horloge et element indicateur comportant ledit actionneur Download PDFInfo
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- WO1999007063A1 WO1999007063A1 PCT/JP1998/003464 JP9803464W WO9907063A1 WO 1999007063 A1 WO1999007063 A1 WO 1999007063A1 JP 9803464 W JP9803464 W JP 9803464W WO 9907063 A1 WO9907063 A1 WO 9907063A1
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- WIPO (PCT)
- Prior art keywords
- vibration
- diaphragm
- lever
- plate
- output system
- Prior art date
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- 238000006073 displacement reaction Methods 0.000 claims abstract description 54
- 230000007246 mechanism Effects 0.000 claims description 75
- 230000005284 excitation Effects 0.000 claims description 52
- 230000002093 peripheral effect Effects 0.000 claims description 29
- 230000005540 biological transmission Effects 0.000 claims description 27
- 230000035807 sensation Effects 0.000 claims description 18
- 230000009467 reduction Effects 0.000 claims description 16
- 238000012544 monitoring process Methods 0.000 claims description 4
- 239000000725 suspension Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 7
- 238000005452 bending Methods 0.000 description 33
- 230000006870 function Effects 0.000 description 8
- 230000008901 benefit Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 230000005489 elastic deformation Effects 0.000 description 4
- 230000033001 locomotion Effects 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000000630 rising effect Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 239000013585 weight reducing agent Substances 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000001953 sensory effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
- H02N2/0005—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing non-specific motion; Details common to machines covered by H02N2/02 - H02N2/16
- H02N2/001—Driving devices, e.g. vibrators
- H02N2/0015—Driving devices, e.g. vibrators using only bending modes
-
- G—PHYSICS
- G04—HOROLOGY
- G04G—ELECTRONIC TIME-PIECES
- G04G13/00—Producing acoustic time signals
- G04G13/02—Producing acoustic time signals at preselected times, e.g. alarm clocks
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
- H02N2/0005—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing non-specific motion; Details common to machines covered by H02N2/02 - H02N2/16
- H02N2/001—Driving devices, e.g. vibrators
- H02N2/002—Driving devices, e.g. vibrators using only longitudinal or radial modes
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
- H02N2/10—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing rotary motion, e.g. rotary motors
- H02N2/103—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing rotary motion, e.g. rotary motors by pressing one or more vibrators against the rotor
Definitions
- the present invention relates to an actuary using a diaphragm, a timepiece and an alarm device using the actuator. More specifically, the present invention relates to a structure for amplifying vibration of a vibration plate and outputting the amplified vibration as in-plane vibration.
- the wristwatch and other calendar display mechanisms that display the day and the dawn are intermittently transmitted to the day indicator, etc., via a wheel train for hand movements. It is common to carry out feed driving.
- a portable electronic device such as a pager or a mobile phone is equipped with a sounding device, and the sounding device emits an audible sound to notify a user of the reception. In some cases, it is appropriate for this type of device to emit an audible sound. Therefore, a vibration generator (vibration device) is installed. Notify the user of the fact.
- a vibration generator vibration device
- an object of the present invention is to provide a new type of actuator that amplifies and outputs vibration of a diaphragm as in-plane vibration, a timepiece and a notification device using the same.
- an object of the present invention is to provide an actuary and a clock and an alarm device using the same, in which a single vibration source exerts different functions, thereby making it possible to reduce the size and weight of a device equipped with the same. Is to do. Disclosure of the invention
- At least one end is displaced in the in-plane direction as a movable end for displacement transmission by vibration, and the diaphragm is caused to vibrate.
- a vibration output system connected to the movable end and configured to amplify and output in-plane displacement of an in-plane displacement of a connection portion with the movable end as an in-plane vibration.
- the actuator of the present invention is a new actuator that outputs vibrations of the diaphragm as in-plane vibrations, and can be configured with a small number of components and has a thickness at which the diaphragm vibrates. It can be configured in a narrow space.
- the displacement in the in-plane direction of the connection portion with the movable end is an in-plane vibration displacement caused by the diaphragm performing radial vibration in an out-of-plane direction.
- the displacement in the in-plane direction of the connection portion with the movable end may be an in-plane vibration displacement accompanying the longitudinal vibration of the diaphragm.
- the diaphragm may include the movable end connected to the vibration output system only at one end, and the other end may be a fixed end.
- the diaphragm has the movable end at both ends, and the vibration output system is connected to each of the movable ends at both ends as a first vibration output system and a second vibration output system.
- the vibration output system is connected to each of the movable ends at both ends as a first vibration output system and a second vibration output system.
- the diaphragm may include the movable end connected to the vibration output system only at one end, and the other end may be a free end.
- the other end of the diaphragm is a free end, it is preferable to attach a weight to the diaphragm to prevent the diaphragm from being accidentally vibrated by disturbance.
- the resonance frequency can be set low, and if the weight is cut, the frequency can be adjusted.
- the diaphragm has a length dimension larger than a width dimension. With this configuration, there is an advantage that vibration in the longitudinal direction (in-plane direction) occurs preferentially on the diaphragm, and the occurrence of radial vibration that is difficult to control can be suppressed.
- the excitation unit a unit including a piezoelectric element formed on at least one surface of the vibration plate and a drive circuit for the piezoelectric element can be used.
- the piezoelectric element any of a bimorph, a unimorph, and a laminated type can be used.
- the piezoelectric element is formed on the diaphragm, Even if the piezoelectric element is made thinner, the strength can be maintained and mi- and electrical energy, which can easily increase the capacity, can easily enter. Furthermore, since it is only necessary to laminate the piezoelectric element on the diaphragm, it is suitable for making the actuator thinner.
- an output circuit for outputting an electromotive force generated in the piezoelectric element when the vibration output system vibrates due to a disturbance and the vibration is transmitted to the diaphragm may be configured.
- the excitation means using a piezoelectric element a magnetic body formed on the diaphragm, an electromagnetic magnet opposed to the magnetic body, A device including a driving circuit can also be used.
- the vibration output system includes a lever having a base end connected to a movable end of the diaphragm and a free end at a front end, and an elastic portion supporting a base end of the lever.
- the lever is also included in the vibration system, so that the resonance frequency is reduced. Therefore, the current consumption of the drive circuit can be kept low. Further, even when a date indicator (driven member) or the like is directly operated in a calendar mechanism of a wristwatch described later, the reduction mechanism can be omitted, which is also suitable for mounting on a thin device such as a wristwatch.
- the diaphragm when the diaphragm has the movable end connected to the lever only at one end, and the other end is a free end, the diaphragm and the lever have the elasticity. Preferably, it is supported only by the part. With this configuration, leakage of energy transmission from the diaphragm to the lever can be suppressed.
- a pressure spring for pressing a vibration output end of the lever against a driven member is further provided. It is preferable that such a pressure spring and the lever are formed integrally with a plate-shaped plate member. In a case where the pressure spring is formed integrally with the lever as a plate-like member, the plate-like member is moved forward with the pressure spring so that in-plane rotation is possible. By supporting the lever between the lever and the end of the pressure spring, the vibration output end of the lever is pressed by the pressure spring toward the driven member. It is preferred that it is.
- the vibration output system is constituted by an elastic part and a lever
- the vibration output end of the lever elastically contacts the driven member by the elastic force of the elastic part.
- the vibration output system a plate-like member arranged in a plane with respect to the diaphragm is used, and the plate-like member may have a constricted portion functioning as the elastic portion. preferable.
- the width dimension of the constricted portion is smaller than the thickness dimension of the plate member, out-of-plane vibration unnecessary for driving the driven member is less likely to occur on the lever. Therefore, the out-of-plane vibration is not transmitted to the driven member, and the in-plane vibration can be efficiently transmitted to the driven member.
- the lever is configured as a plate-shaped lever that is arranged in a plane with respect to the diaphragm.
- each component can be configured by a plate-shaped member, so that the thickness of the actuator can be further reduced.
- the lever has a lever ratio corresponding to a ratio of a dimension from the elastic part to a connection position with a movable end of the diaphragm and a dimension from the elastic part to a vibration output end of the lever. Amplifies and outputs the displacement in the in-plane direction of the connection portion with the movable end of the diaphragm.
- the lever may perform resonance vibration bending in an in-plane direction of the lever to amplify and output an in-plane displacement of a connection portion of the diaphragm with the movable end in some cases.
- the vibration plate is in contact with a thin portion of a plate-like member constituting the lever.
- the connecting portion (overlapping portion) between the diaphragm and the lever can be made thin.
- the number of components is reduced by forming the diaphragm as a thin portion formed on the same plate member as the lever. Also, If the diaphragm and the lever are formed in the same plate-like member, vibration absorption does not occur because the vibration transmission path from the diaphragm to the lever does not have a joint portion with an adhesive or the like. Therefore, there is an advantage that the efficiency of transmitting vibration from the vibration plate to the lever is improved.
- the diaphragm is connected to the lever so as to be located substantially at the center in the thickness direction of the lever. With this configuration, when the displacement is transmitted from the diaphragm to the lever, the diaphragm and the lever do not twist. Further, in the present invention, it is preferable that the diaphragm is connected to the lever so as to be substantially perpendicular to the lever. With this configuration, the displacement of the movable end of the diaphragm in the in-plane direction can be efficiently transmitted.
- the vibration output system transmits vibration to a peripheral edge of a thin plate-like driven ring (driven member) disposed substantially in the same plane as the diaphragm, and rotationally drives the driven ring in a circumferential direction.
- the driven ring is disposed around the vibration output system and the diaphragm, and the vibration output system transmits vibration to the inner peripheral edge of the thin plate-shaped ring to rotationally drive the ring in the circumferential direction. It is preferable that it is constituted so that it may be performed. With this configuration, it is possible to reduce the thickness including the driven member (a thin ring).
- the vibration output system includes a protrusion at a vibration output end that abuts on a peripheral edge of the driven ring.
- the vibration output system is configured to rotationally drive the driven ring via a speed reduction mechanism.
- the speed reduction mechanism includes a roller with which a vibration output end of the vibration output system contacts.
- the vibration output system preferably includes a projection at a vibration output end that comes into contact with the roller.
- the excitation means may include a first vibration having a first vibration frequency and a second vibration having a second vibration frequency different from the first vibration frequency with respect to the diaphragm. It is preferable to perform the vibration.
- the excitation unit may be configured to generate the first vibration at a resonance frequency of a vibration system including the vibration plate and the second vibration at a frequency corresponding to a higher resonance frequency of the resonance frequency. Let the board do it. this With such a configuration, the excitation means causes the diaphragm to vibrate at different frequencies and outputs vibrations having different vibration frequencies. Therefore, the audible sound and the bodily sensation vibration are generated by using the vibrations having different frequencies. This makes it possible to reduce the size and weight of the equipment on which the overnight is mounted.
- the diaphragm may cause a lever used in the vibration output system to perform resonance vibration that bends at different orders in an in-plane direction of the lever.
- the lever has a protrusion that abuts on the driven member at a position corresponding to a position between nodes when the resonance vibration is performed.
- the actuator according to the present invention can be made thinner, and thus is suitable for use as a drive device for a calendar display mechanism in a timepiece.
- the vibration output system drives a thin plate-like driven ring as a driven member
- the thin plate-shaped driven ring may be used as a ring-shaped calendar-one display wheel in the calendar-one display mechanism.
- the calendar display mechanism when using a mechanism in which the first and second vibration output systems are configured as the vibration output system as a driving device of a calendar display mechanism of a timepiece, the calendar display mechanism includes the first display.
- a ring-shaped calendar display wheel (a driven member according to the present invention) that rotates by receiving vibration from the second vibration output system at the inner peripheral edge or the outer peripheral edge can be used.
- the vibration output end of one of the first and second vibration output systems is located in the notch on the inner peripheral edge or outer peripheral edge of the calendar display car during the rest period of the operation. It is preferable that a plurality of notches are formed in which the vibration output end of the other vibration output system is outside the notch when it is located.
- the actuary according to the present invention is suitable for miniaturization and weight reduction, it can be used as a reporting device for reporting a bodily sensation vibration or the like by at least the first vibration having a low vibration frequency. it can.
- the factories according to the present invention are suitable for miniaturization and weight reduction, so that the first vibration generates a bodily sensational vibration and the second vibration generates an audible sound. It is preferably mounted on portable electronic devices.
- FIG. 1 (A;) and 1 (B) are a plan view and a plan view, respectively, of an actuary according to Embodiment 1 of the present invention and a calendar display mechanism of a wristwatch for driving a date wheel. It is a figure and sectional drawing of the principal part.
- FIGS. 2 (A) and 2 (B) are circuit block diagrams each showing an example of a drive circuit for driving the factory according to Embodiment 1 of the present invention.
- FIGS. 3 (A :) and (B) are plan views each showing an actuary according to Embodiment 2 of the present invention, and a case where it is used for driving a date wheel in a calendar display mechanism of a wristwatch. It is a figure and sectional drawing of the principal part.
- FIGS. 4 (A) and (B) are respectively a plan view of an actuary according to Embodiment 3 of the present invention, and a plan view when the same is used for driving a date indicator in a calendar display mechanism of a wristwatch. It is sectional drawing of a principal part.
- FIGS. 5 (A) and 5 (B) are a plan view of an actuary according to Embodiment 4 of the present invention, and a plan view of a case where the same is used for driving a date indicator in a calendar display mechanism of a wristwatch. It is sectional drawing of a principal part.
- FIG. 6 (A) and 6 (B) are plan views each showing an actuary according to Embodiment 5 of the present invention and a case where it is used for driving a date wheel in a calendar display mechanism of a wristwatch.
- FIG. 3 is a cross-sectional view of the main part.
- FIGS. 7A and 7B are a plan view and a cross-sectional view, respectively, of the factory according to Embodiment 6 of the present invention.
- FIGS. 8 (A) and 8 (B) are explanatory diagrams schematically showing bending vibration of the diaphragm during the actuation shown in FIG. 7.
- FIG. 9 is an explanatory diagram showing an example in which the actuary shown in FIG. 7 is used for a notification device that generates an audible sound and a bodily sensation in a pager.
- FIGS. 10 (A) and (B) are plan views each showing the case of the actuary according to Embodiment 7 of the present invention and the case where it is used for driving a date wheel in a calendar display mechanism of a wristwatch. It is sectional drawing of a principal part.
- 11 (A) and 11 (B) are plan views each showing an actuary unit according to Embodiment 8 of the present invention and a case where it is used for driving a date wheel in a calendar display unit of a wristwatch. It is sectional drawing of a principal part.
- FIGS. 12 (A) and 12 (B) are plan views each showing an actuary according to Embodiment 9 of the present invention, and a case where it is used for driving a date indicator in a calendar display mechanism of a wristwatch. It is sectional drawing of a principal part.
- FIGS. 13 (A) and (B) are cross-sectional views of a case and a main part thereof according to Embodiment 10 of the present invention, respectively.
- FIG. 14 is a plan view of a calendar display mechanism using the actuary shown in FIGS. 13 (A) and 13 (B).
- FIGS. 15 (A) and (B) are cross-sectional views of a case and a main part thereof according to Embodiment 11 of the present invention, respectively.
- FIGS. 16 (A) and (B) are plan views each showing an exemplary embodiment according to Embodiment 12 of the present invention.
- FIG. 17 (A) and 17 (B) show an explanatory diagram showing an example in which a laminated piezoelectric element is used as an excitation means of an actuator to which the present invention is applied, and an example in which an electromagnetic magnet is used.
- FIG. 17 (A) and 17 (B) show an explanatory diagram showing an example in which a laminated piezoelectric element is used as an excitation means of an actuator to which the present invention is applied, and an example in which an electromagnetic magnet is used.
- FIGS. 1 (A) and 1 (B) are a plan view and a cross-sectional view of an essential part of an actuator according to Embodiment 1 of the present invention, respectively.
- the actuary 10 shown in these figures is generally a metal plate 11 mm thick with a thickness of about 0.5 mm that is screwed and fixed at three places to a base (not shown) on which it is mounted.
- the vibration output system 3 amplifies the out-of-plane bending vibration of the vibration plate 12 as in-plane vibration using the plate 11 and outputs the amplified vibration. 0 is configured.
- the vibrating plate 12 has a rectangular part 120 on which a unimorph-type piezoelectric element 21 having a thickness of about 0.2 mm is formed on the upper surface side, and a movable end of both sides of the rectangular part 120.
- the first diaphragm side connection portion 1 2 3 connected via the first narrow portion 1 2 1 at one end 1 2 5 to be formed, and the other end 1 2 6 to be a fixed end
- a second diaphragm-side connection portion 124 connected to the second diaphragm portion 122 via a second narrow portion 122.
- the excitation means 20 includes a unimorph-type piezoelectric element 21 formed on the upper surface of the diaphragm 12, an electrode (not shown) formed on the piezoelectric element 21, and the diaphragm 12. And a drive circuit 22 (see FIG. 1 (B)) for applying a drive signal between them as the two poles.
- the drive circuit 22 is a resonant frequency of the vibration system of the actuator 10. A drive signal having a frequency corresponding to the number is applied to the piezoelectric element 21.
- the driving circuit 22 converts the signal output from the oscillation circuit 22 1 into a driving signal having a frequency corresponding to the resonance frequency of the vibration system by the frequency conversion circuit 22 2.
- a separately excited type which is applied to the piezoelectric element 21 as shown in FIG. 2, as shown in FIG. 2 (B), a variable frequency filter 224 and a A switching circuit 225 is provided, and only a signal of a predetermined frequency is fed back by the switching circuit 225, whereby a drive signal having a frequency corresponding to the resonance frequency of the vibration system is applied to the piezoelectric element 21.
- the plate 11 is arranged in parallel with the diaphragm 12 and both sides are screwed to the base.
- the lower end of the first diaphragm-side connection portion 1 2 3 of the diaphragm 12 from the one located on the side of the movable end 1 2 5 of the diaphragm 1 2 A lever 32 extending from the main body portion 1 1 1 to the other side with respect to the diaphragm 1 2, and the other end 1 26 serving as a fixed end of the diaphragm 1 2 2, the plate-side connection portion extending through the lower side of the second diaphragm-side connection portion 1 2 4 to the side opposite to the main body portion 1 1 1 with respect to the diaphragm 12 and screwed to the base there. 1 1 and 5 are configured.
- a constricted portion 31 (elastic portion) is formed at the base of the lever 1 32 and the main body portion 1 1 1.
- the portion that passes under the diaphragm-side connection portion 123 of the above is a thin joint portion 117 with the diaphragm 12. Therefore, since the diaphragm 1 2 is connected by the thin portion of the plate-like member (plate 11) constituting the lever 13 2, the connecting portion (overlapping portion) of the diaphragm 12 and the lever 13 is connected. Portion) can be made thinner.
- the lever 3 2 has the base end 3 2 1 connected to the constricted portion 3 1 side and the movable end side of the diaphragm 12, from which the distal end side is the free end 3 2 2 (vibration Output end).
- the diaphragm 12 is connected to the lever 13 so as to be located at the center in the thickness direction of the lever 32, so that the displacement of the diaphragm 12 in the in-plane direction is transmitted to the lever 32. When this is done, the diaphragm 12 and the lever 32 do not twist.
- the lever 32 has a dimension between the constricted portion 31 and the connection position with the movable end of the diaphragm 12 and a dimension between the constricted portion 31 and the tip (the vibration output end) of the lever 32.
- the rectangular section 1 2 Since the first and second narrow portions 1 2 1 and 1 2 2 are formed between 0 and the plate 11, the expansion and contraction vibration of the piezoelectric element 21 (arrow A in FIG. 1 (B)) As a result, the diaphragm 12 bends and vibrates in the out-of-plane direction. Although the diaphragm 12 and the base end 3 2 1 of the lever 3 2 are completely joined, there is no connection between this joint 1 17 and the body 1 1 1 of the plate 11.
- the deformable constricted portion 31 is configured, when the diaphragm 12 bends and vibrates in the out-of-plane direction, one end 1 2 5 that should become the movable end of the diaphragm 12 is constricted 3 1 The displacement is repeated in the in-plane direction of the diaphragm 12 due to the elastic deformation at.
- the lever 3 2 connected with the base end 3 2 1 on the side of the one end 1 2 5 serving as the movable end has a free end 3 2 2 with the constricted portion 3 1 as a fulcrum and a diaphragm 1 2 Vibrates in the in-plane direction, and transmits it to the driven member 500 as shown by arrow C.
- the actuator 10 of the present embodiment is a new type of actuator that takes out the out-of-plane bending vibration of the diaphragm 12 as the in-plane vibration at the free end 32 of the lever 132. It is 10 for Chiyue, and can be composed of few parts. Also, since the actuator 10 does not need to arrange members above and below the diaphragm 12, it can be configured in a space with a small thickness dimension in which the diaphragm 12 bends and vibrates in an out-of-plane direction. It can be mounted in a thin device. In the present embodiment, since the lever 13 is connected to the diaphragm 12, a vibration system is configured including the lever 32, so that the resonance frequency is low.
- the current consumption of the drive circuit 22 can be kept low.
- a speed reduction mechanism is not required, and this point is also suitable for mounting on a thin device.
- a plate 11 plate-like member arranged in a plane with respect to the diaphragm 12 is used, and a constricted portion 31 of the plate 11 causes an end of the diaphragm 12 to end. Since it is possible to displace in the in-plane direction, it does not use thick springs, so it is suitable for reducing the thickness of the actuator. In addition, since the vibration is output from the plate-shaped lever 32 (plate-shaped lever), this is also suitable for making the actuator 10 thinner.
- FIGS. 1 (A) and 1 (B) show the use of the actuary device 10 thus configured as the drive device of the calendar display mechanism 50 of a wristwatch. The example used is shown.
- a ring-shaped date indicator 51 (calendar display wheel) is arranged in substantially the same plane as the diaphragm 12 so as to surround the diaphragm 12 and the lever 32.
- the date indicator 51 is positioned by two guides 501, 502 that are in contact with its inner peripheral edge 5111, and a free end 3222 of a lever 32 of the actuator 10. In this state, the date wheel 51 receives the vibration from the vibration output system 30 (lever 32) of the actuator 10 at the inner peripheral edge 5 11 and rotates in the circumferential direction.
- the actuator 10 when the actuator 10 operates and the free end 3 2 2 of the lever 3 2 vibrates in the in-plane direction of the diaphragm 12 around the constricted portion 3 1, the free end 3 2 of the lever 3 2 2 repeatedly hits the inner peripheral edge 5 1 1 of the date wheel 5 1 in the direction shown by arrow C for a predetermined period, so that the wheel 5 1 is fed and driven by the predetermined rotation angle in the direction shown by arrow D.
- the actuator 10 of the present embodiment can drive the date dial 51 with a small number of parts, and the actuator 10 has a diaphragm 12 in an out-of-plane direction. It occupies only a small space for bending vibration.
- the date indicator 51 is thin and is disposed substantially in the same plane as the diaphragm 12. Therefore, the present embodiment of the present embodiment, and the calendar display mechanism 50 using the same, have a thin wristwatch. Can be stored in the watch case.For example, a mechanical system is shared between a watch with a calendar display mechanism and a watch without such a display mechanism, forming a clock side with a calendar display mechanism. In this case, the calendar display mechanism 50 can be incorporated on the side of the dial. In addition, a calendar display mechanism 50 that is mechanically independent of the train of wheels for driving the hands can be configured, so that the drive circuit 20 drives at a predetermined timing based on data recorded in ROM or the like. The perpetual calendar can be easily configured simply by outputting signals, eliminating the need to manually correct dates for small months, large months, and leap years.
- FIGS. 3 (A;) and (B) are a plan view and a cross-sectional view of an essential part of the case 10 according to the second embodiment of the present invention, respectively. Note that, in this embodiment and any of the embodiments described later, the basic configuration is the same as that of the first embodiment, and the corresponding parts are denoted by the same reference numerals and description thereof will be omitted.
- the actuator 10 shown in these figures also has a plate 11 with a thickness of about 0.5 mm, which is screwed and fixed at two places to a base (not shown) on which it is mounted.
- a diaphragm 12 having a thickness of about 0.05 mm and having both ends supported by the plate 11 so as to be capable of bending vibration in an out-of-plane direction, the diaphragm being arranged planarly with respect to the plate 11;
- Exciting means 20 (see FIG. 3 (B)) composed of a piezoelectric element 21 and a drive circuit 22 for causing the moving plate 12 to perform bending vibration is configured. Since the basic structure of the diaphragm 12 and the exciting means 2 ⁇ for bending the diaphragm 12 is the same as that of the first embodiment, the description thereof is omitted.
- the vibration output system 30 which outputs the bending vibration in the out-of-plane direction of the diaphragm 12 as the in-plane direction vibration using the plate 11 is characterized. . That is, the plate 11 is disposed in parallel with the diaphragm 12 and both ends thereof are screwed to the base.
- a lever 32 extending from one end 1 25 which is a movable end of the plate 12 to a side opposite to the diaphragm 12 from the side located on the side of the diaphragm 12, and the other end which is a fixed end of the diaphragm 12 Place on the side of part 1 2 6 And a plate-side connection portion 115 extending from the mounting portion to the lower side of the other end portion 126 of the diaphragm 12.
- a constricted portion 3 1 (elastic portion) is formed at the base of the lever 3 2 and the main body portion 1 1 1, and on a slightly distal side from the constricted portion 31, the lever 3 2 is free.
- the portion that extends on the opposite side to the end 3 2 2 and overlaps the first diaphragm side connection portion 1 2 3 of the diaphragm 12 on the lower side becomes a thin joint portion 1 17 with the diaphragm 12. I have. Therefore, the vibration plate 12 is connected by the thin portion of the plate-like member (plate 11) constituting the lever 32, so that the connection portion (overlap portion) between the vibration plate 12 and the lever 13 is provided. Can be made thinner.
- the lever 32 is connected to the constricted portion 31 adjacent to each other and the one end 125 serving as the movable end of the diaphragm 12 by connecting the base end 3 21 to the base end 3 2 1. It has a structure in which the tip side extends as a free end 3 222 from there.
- the diaphragm 12 becomes a movable end when the diaphragm 12 bends and vibrates in an out-of-plane direction as described later.
- a vibration output system 30 is provided which amplifies the displacement of one end 125 in the in-plane direction and outputs it from the free end 32 2 of the lever 32 as in-plane vibration.
- the vibration output system 30 when the constricted portion 31 is used as a fulcrum, one end 1 2 5 (movable end) of the diaphragm 12 is opposite to the fulcrum.
- the joint 1 1 7 and the free end 3 2 2 of the lever 3 2 are arranged separately.
- (B) is indicated by arrow A.
- (B) causes the diaphragm 12 to bend and vibrate in an out-of-plane direction.
- one end 1 25 which should become a movable end of the diaphragm 12 is deformed in an in-plane direction of the diaphragm 12 by elastic deformation of the constricted portion 31. The displacement is repeated.
- the lever 3 2 connected to the base end 3 2 1 on the side of the one end 1 2 5 serving as the movable end has a free end 3 2 2 with the constricted portion 3 1 as a fulcrum, and Vibrates in the in-plane direction, and transmits it to the driven member 500 as shown by arrow C.
- the watch 10 When the actuator is used as a driving device for the cylinder display mechanism 50, the actuator 10 operates, and the free end 3 2 2 of the lever 32 is in the plane of the diaphragm 12 centered on the constricted portion 31.
- the lever 32 When vibrating in the direction, the lever 32 repeatedly strikes the inner peripheral edge of the date indicator 51 in a direction toward arrow C, so that the date indicator 51 rotates in the direction indicated by arrow D, and the date is fed.
- an external impact is applied to the diaphragm 12 so that the diaphragm 12 bends in an out-of-plane direction, so that the diaphragm 12 contracts at one end.
- the actuator 10 of the present embodiment is used as a driving device of the calendar display mechanism 50 of the wristwatch, the free end 3 2 2 Since the ring-shaped date wheel 51 (calendar indicating vehicle) comes into stronger contact with the inner peripheral edge 5 11, the date wheel 51 does not rotate carelessly. Therefore, it is possible to realize a calendar display mechanism 50 in which the car 51 does not rotate due to disturbance.
- a projection 3200 that comes into contact with the inner peripheral edge 5111 of the date indicator 51 is provided at the tip of the lever 32. Therefore, since the lever 32 always drives the date wheel 51 at the portion of the projection 320, vibration can be effectively transmitted to the wheel 51.
- FIGS. 4 (A) and (B) are a plan view and a cross-sectional view of a main part of an actuator 10 according to Embodiment 3 of the present invention, respectively.
- the actuators 10 shown in these figures are also approximately two 0.5 mm-thick plates 11 A, each screwed and fixed to a base (not shown) on which they are mounted. , 1 IB and the thickness of the plates 11 A, 11 B, which are arranged in a plane with respect to each other, and whose both ends are supported by each plate 11 A, 1 IB so that bending vibration in the out-of-plane direction is possible.
- a diaphragm 12 having a length of about 0.05 mm and excitation means 20 including a piezoelectric element 21 and a drive circuit 22 for causing the diaphragm 12 to perform bending vibration are configured.
- the basic configuration of diaphragm 12 is the same as that of the first embodiment, and a description thereof will not be repeated.
- the out-of-plane bending vibration of the diaphragm 12 is amplified and output as in-plane vibration using the two plates 11 A and 1 IB.
- First and second vibration output systems 30 A and 30 B are configured.
- the plates 11 A and 11 B support the diaphragm 12 so that both ends 1 25 and 1 26 operate as movable ends.
- the displacement of each movable end in the in-plane direction when the diaphragm 12 performs the out-of-plane bending vibration is the in-plane vibration of the two ends 1 25 and 1 26.
- the first and second levers 32A and 32B are connected as output.
- the first plate 11 A is formed on a portion 118 A screwed to the base and one end portion 125 of the diaphragm 12 from this portion. And a first lever 32A extending to the opposite side of the diaphragm 12 through the lower side of the first diaphragm side connection portion 123.
- the second plate 11B is arranged substantially point-symmetrically with respect to the first plate 11A with respect to the diaphragm 12 as in the case of the first plate 11A.
- first and second diaphragm side connection portions 1 2 3 and 1 2 4 of the diaphragm 1 2 are connected to the proximal end 3 2 A of the first and second levers 3 2 A and 3 2 B, respectively. 1 A, 3 2 1 B are joined.
- the first and second levers 32A and 32B and the main body 1118A and 118B Since the first and second constrictions 31A and 3IB (elastic parts) are respectively formed at the base of the base, the first and second constrictions 31A and 3IB are slightly more advanced than the first and second constrictions 31A and 3IB.
- the first and second diaphragm side connection portions 1 2 3 and 1 2 4 of the diaphragm 12 and the proximal end 3 2 1 A of the first and second levers 32 A and 32 B, 3 2 1 B is in a joined state.
- the first and second levers 32 are formed of the first and second constricted portions 31 A and 31 B which are close to each other, and the respective ends 1 2 5 and 1 2 of the diaphragm 12.
- the structure has a structure in which the proximal ends 3 2 1 A and 3 2 1 B are connected to the 6 side, respectively, and the distal end side extends therefrom as free ends 3 2 A and 3 2 2 B.
- Such a connection structure between the first and second levers 32A and 32B and the diaphragm 12 is provided. Therefore, in this embodiment, when the diaphragm 12 bends and vibrates in an out-of-plane direction as described later, the displacement in the in-plane direction of both ends 1 25 and 1 26 serving as movable ends is amplified.
- the first and second vibration output systems 30 A which output from the first and second levers 32 A and 32: 8 free ends 32 22 and 32 22 B as in-plane vibrations, 30 B.
- These first and second vibration output systems 30 A and 30 B have the same first and second constricted portions 31 A and 3 B as in the first embodiment.
- the joint between the diaphragm 12 and the first and second levers 32 A and 32 B, and the first and second It has a structure in which the free ends 32 2 A, 32 B of the second levers 32 A, 32 B are arranged, so that the first and second levers 32 A, 32 B are Vibration from the first and second constrictions 31A, 31B
- the dimensions up to the connection position with the movable end of 1 and the tip of the first and second levers 32 A and 32 B from the first and second constricted portions 31 A and 31 B (vibration
- the displacement in the in-plane direction of the connecting portion of the diaphragm 12 with the movable end is amplified and output with a lever ratio corresponding to the ratio to the dimension up to the output end.
- the first lever 32A is longer and the second lever 32B is shorter, so that the first lever 32A has a larger mass than the second lever 32B.
- the drive circuit 22 constituting the excitation means 20 includes a drive signal corresponding to the resonance frequency of the first vibration system 300 A and a resonance signal of the second vibration system 300 B. And a corresponding drive signal. Therefore, when the drive circuit 22 applies a drive signal corresponding to the resonance frequency of the first vibration system 300 A to the piezoelectric element 21, the vibration plate 12 is driven by the first vibration system 300 A In this case, the bending vibration corresponding to the resonance frequency is performed.
- the other end 1 26 of the vibrating body 12 is a fixed end, and only one end 1 25 is a movable end, and the in-plane vibration is generated. I do.
- the free end 3 2 2 A vibrates in the in-plane direction of the diaphragm 12 with 1 A as a fulcrum, and transmits it to the driven member 500 as indicated by the arrow 'CA.
- the drive circuit 22 applies a drive signal corresponding to the resonance frequency of the second vibration system 300 B to the piezoelectric element 21, the vibration plate 12 Since bending vibration corresponding to the resonance frequency of 0 B is performed, at this time, one end 125 of the diaphragm 12 is a fixed end, and only the other end 126 is a movable end. Vibrates inward.
- the second lever 32 B connected to the other end 1 26 to the base end 3 2 1 B is connected to the free end 3 2 B with the second constricted portion 3 1 B as a fulcrum.
- 2B vibrates in the in-plane direction of diaphragm 12 and transmits it to driven member 500 as indicated by arrow CB.
- the operation of the free end 32 2 B of the second lever — 32 B has a high frequency, but the amplitude is The free end of the first lever 3 2 A 3 2 2 A is larger. Therefore, in this embodiment, as described below, the normal feed operation of the calendar display is performed by the second lever 32B, and the fast render display of the force render is performed by the first lever 32A.
- the first and second levers 32 A, 3 The actuary 10 is arranged so that both the free ends 3 2 2 8 and 3 2 2 B of 2 8 are inscribed in the date indicator 51.
- a drive signal corresponding to the resonance frequency of the second vibration system 300 B is applied from the drive circuit 22 to the piezoelectric element 21,
- the date wheel 51 is rotated in the direction of arrow D by lever 2 3 2 B.
- the drive signal corresponding to the resonance frequency of the first vibration system 30 OA is transmitted from the drive circuit 22 to the piezoelectric element 2.
- 5 (A) and 5 (B) are a plan view and a cross-sectional view of an essential part of an actuator 10 according to Embodiment 4 of the present invention, respectively.
- the actuator 10 shown in these figures is generally composed of a plate 11 with a thickness of about 0.5 mm, which is screwed and fixed at two places to a base (not shown) on which it is mounted, and these plates.
- Exciting means 20 comprising a piezoelectric element 21 for causing vibration and a drive circuit 22 is configured in the same manner as in the first embodiment. Further, diaphragm 12 has the same basic configuration as that of the first embodiment, and a description thereof will be omitted.
- the actuating plate 10 of the present embodiment also supports the diaphragm 12 using the plate 11 so that both end portions 125 and 126 can operate as movable ends.
- the diaphragm 12 undergoes out-of-plane bending vibration, the displacement in the in-plane direction of both ends 125 and 126 (each movable end) is amplified as in-plane vibration.
- the first and second vibration output systems 3 OAs 30B for outputting are configured.
- the first and second vibration output systems 30A and 30B are configured to drive the same driven member 500 in opposite directions.
- the plate 11 has first and second ends 125 and 126 formed on both ends 125 and 126 of the diaphragm 12 extending in the same direction from both ends of the main body 111.
- the first and second levers 32A and 32B are formed to extend on the opposite sides of the diaphragm 12 through the lower sides of the diaphragm side connection portions 123 and 124, and the first lever 32A and the second lever 32A are formed.
- the free ends 322A and 322B of the lever 32B face each other.
- first and second constricted portions 31A and 31B are respectively formed at the base portion of the main body portion 111 and these first The first and second constrictions 31A and 3IB are slightly distal to the first and second constrictions.
- Base portions 321 A and 32 IB passing below the second diaphragm-side connection portions 123 and 124 are joints with the diaphragm 12. Therefore, the first and second levers 32A and 32B are located at the base end sides of the first and second constricted portions 31 adjacent to each other and the ends 125 and 126 of the diaphragm 12, respectively.
- 32 1 A and 32 1 B are connected to each other, and the distal end side extends therefrom as free ends 322 A and 322 B.
- first and second vibration output systems 30A and 3OB are configured.
- first and second vibration output systems 30A and 3OB when the first and second constricted portions 31A and 31B are used as their fulcrums, they are on the same side with respect to these fulcrums.
- the connecting portions between the ends 125 and 126 of the diaphragm 12 and the first and second levers 32A and 32B, and the free ends 322A and 322B of the levers 32A and 32B are arranged separately. ing.
- a first vibration system 300 A composed of the diaphragm 12 and the first vibration output system 3 OA is connected to a second vibration system 300 B composed of the diaphragm 12 and the second vibration output system 30 B.
- the resonance frequency of the first vibration system 30OA is lower than the resonance frequency of the second vibration system 300B.
- the drive circuit 22 constituting the excitation means 20 includes the drive signal corresponding to the resonance frequency of the first vibration system 30 OA and the drive signal of the second vibration system 300 B. It is possible to output a drive signal corresponding to the resonance frequency. Therefore, when the drive circuit 22 applies a drive signal corresponding to the resonance frequency of the first vibration system 30 OA to the piezoelectric element 21, only one end 125 of the diaphragm 12 is a movable end in the in-plane direction. Perform vibration.
- the proximal end 3 The first lever 3 2 A to which 2 1 A is connected, the self-living end 3 2 2 side vibrates in the in-plane direction of the diaphragm 12 with the first constricted portion 31 as a fulcrum, and the arrow It is transmitted to the driven member 500 as indicated by CA.
- the drive circuit 22 applies a drive signal corresponding to the resonance frequency of the second vibration system 300 B to the piezoelectric element 21, the other end 1 2 6 Only the movable end oscillates in the in-plane direction.
- the second lever 32 A to which the proximal end 3 2 1 B is connected to the other end 1 26, has a free end 3 2 B with the second constricted portion 3 1 B as a fulcrum.
- 2B vibrates in the in-plane direction of diaphragm 12 and transmits a force in the opposite direction to first lever 32A to driven member 500, as indicated by arrow CB.
- the first and second levers 32 A, 32 B Arrange akuchiyue 10 so that both free ends 3 2 2 A and 3 2 2 B are inscribed in date wheel 51.
- a drive signal corresponding to the resonance frequency of the first vibration system 30 OA is applied from the drive circuit 22 to the piezoelectric element 21, and the first With the lever 3 2 A, the car 51 is rotated in the direction indicated by the arrow DA.
- a drive signal corresponding to the resonance frequency of the second vibration system 300 B is supplied from the drive circuit 22 to the piezoelectric device. It is applied to the element 21 and the wheel 51 is moved backward by the second lever 32B in the direction indicated by the arrow DB.
- the rotation direction and rotation speed of the date wheel 51 can be changed without switching the train wheel using a complicated switching mechanism.
- 6 (A) and 6 (B) are a plan view and a cross-sectional view of a main part of an actuator 10 according to Embodiment 5 of the present invention, respectively.
- Each of the actuators 10 shown in these figures is generally composed of two plates, each having a thickness of about 0.5 mm, each of which is screwed and fixed to a base (not shown) on which it is mounted.
- 1 A 1 1 B and these plates 11 A, 11 B are arranged in a plane with respect to each other, and both ends are supported by each plate 11 A, 1 IB to enable out-of-plane bending vibration.
- a vibration plate 12 having a thickness of about 0.05 mm and excitation means 20 including a piezoelectric element 21 and a drive circuit 22 for causing the vibration plate 12 to perform bending vibration are configured.
- the basic configuration of diaphragm 12 is the same as that of the first embodiment, and a description thereof will be omitted.
- the bending vibration in the out-of-plane direction of the diaphragm 12 is converted into the in-plane direction by using the two plates 11 A and 1 IB.
- the first feature is that the first and second vibration output systems 30A and 30B that output vibrations are provided. Further, in the present embodiment, the first and second vibration output systems 30A and 30B are alternately operated so that one of the two output systems functions as a stopper. It has the characteristics of
- both the first and second plates 11A and 11B have the first and second levers 32A and 32B, respectively.
- the first and second constrictions 31A and 3IB are attached.
- the first and second levers 32 have the same length and the same mass, and are different from the first vibration system 30 OA including the diaphragm 12 and the first vibration output system 30.
- the resonance frequency of the second vibration system 300 B including the vibration plate 12 and the second vibration output system 30 is shifted.
- the drive circuit 22 constituting the excitation means 20 outputs the drive signals corresponding to the resonance frequencies of the first and second vibration systems 300 A and 300 B at staggered times, and outputs In the first and second levers 3 2 A and 32 B, the free ends 3 22 A 3 22 B of the first and second constricted portions 31 A and 31 B are respectively used as diaphragms. Vibrates sequentially in the in-plane direction of 2, and transmits it to the driven member.
- the first and second levers 3 are used in the present embodiment. Place Xactiyue 10 so that both free ends 3 2 2 are inscribed in the car 51. However, in the present embodiment, a plurality of notches 5 1 2 are formed at predetermined intervals on the inner peripheral edge 5 1 1 of the date indicator 5 1, and during the idle period of the operation 10, the first and second vibration output systems When one lever of the 30 levers 3 2 A and 3 2 B is located within the notch 5 12, always make sure that the other lever is outside the notch 5 1 2 (Corresponding part).
- the drive corresponding to the resonance frequency of the vibration system including the lever outside the notch 5 12 and strongly contacting the inner peripheral edge 5 1 1 of the date wheel 5 1 A motion signal is applied from the drive circuit 22 to the piezoelectric element 21 and the date wheel 51 is rotated by the lever. This rotation is performed until the free end of the lever enters the notch 5 12 and swings. In this way, when the rotation of the date wheel 51 has been completed for one step, the lever 3 2 that has driven the date wheel 51 outside the notch 5 1 2 has been inserted into the notch 5 1 2. Meanwhile, the lever 3 2 that was in the notch 5 1 2 and was not involved in driving the date indicator 5 1 is located outside the notch 5 1 2.
- one of the levers 32 A and 32 B of the first and second vibration output systems 30 A and 30 B has one notch 5. If it is located within 1 2, the lever in this notch 5 1 2 will function as a stopper. Therefore, even if a disturbance such as an impact is externally applied to the date wheel 51, the date wheel 51 does not rotate carelessly.
- FIGS. 7A and 7B are a plan view and a cross-sectional view, respectively, of an actuary according to Embodiment 6 of the present invention.
- the actuator 10 shown in these figures is a metal plate 11 having a thickness of about 0.5 mm, which is fixed to a base (not shown) at three places by screws.
- the vibration output system 30 is configured to amplify and output the out-of-plane bending vibration of the diaphragm 12 as in-plane vibration by using the plate 11. ing.
- the diaphragm 12 has a rectangular portion 120 on which a unimorph type piezoelectric element 21 having a thickness of about 0.2 mm is formed on the upper surface side, and a rectangular portion 120 on both sides of the rectangular portion 120.
- a first diaphragm side connection portion 124 connected at one end portion 126 to be a fixed end via a first narrow portion 122, and the other end portion to be a movable end
- a second diaphragm-side connection portion 123 connected to the second diaphragm portion 121 via a second narrow portion 121 is formed.
- the plate 11 is disposed in parallel with the diaphragm 12 and both sides are screwed to the base at both sides.
- the main body 1 1 1 is fixed to the diaphragm 1 2 of the both ends of the main body 1 1 1.
- the main body part 1 1 passes through the lower side of the first diaphragm side connection portion 1 2 4 of the diaphragm 1 2 from the side located on the side of the one end portion 1 2 6 which is the end to the diaphragm 12.
- a lever 13 extends through the lower side of the second diaphragm-side connection portion 12 3 of the plate 12 and extends on the opposite side of the main body portion 11 1 with respect to the diaphragm 12.
- a constricted portion 3 1 is formed at the base of the lever 3 2 and the main body 1 1 1.
- the connecting portion 1 2 of the diaphragm 1 2 on the first diaphragm side is formed at a slightly distal end side from the constricted portion 3 1.
- the portion passing through the lower side of 3 is the junction with diaphragm 12. Therefore, in the lever 32, the proximal end 3 2 1 is connected to the side of the constricted portion 3 1 1 close to the movable end of the diaphragm 1 2 and the distal end side extends therefrom as the free end 3 2 2. It has a structure.
- a vibration output system 30 capable of amplifying the displacement of the (movable end) in the in-plane direction and outputting the vibration in the in-plane direction from the free end 32 2 of the lever 32 is configured.
- the constricted portion 31 is used as a fulcrum
- the other end 1 2 5 (movable end) of the diaphragm 12 and the free end of the lever 3 2 are on the same side with respect to this fulcrum. It has a structure in which the ends 3 2 2 are arranged.
- the excitation means 20 is composed of a unimorph-type piezoelectric element 21 formed on the upper surface side of the diaphragm 12, and the piezoelectric element 21 and the diaphragm 12 each having both poles therebetween.
- a drive circuit 22 for applying a drive signal to the piezoelectric element 21 see FIG. 7 (B)).
- the drive circuit 22 applies a drive signal of a predetermined frequency to the piezoelectric element 21.
- the driving circuit 22 converts the signal output from the oscillation circuit 22 1 into a driving signal having a predetermined frequency by the frequency conversion circuit 22 2.
- a separately excited type that is applied to the piezoelectric element 21 as shown in Fig. 2 (B), the variable frequency filter 222 and the switching of the frequency are applied to the corrugated oscillator circuit 23.
- any of the above drive circuits 22 can switch the frequency of the output drive signal.
- the excitation means 20 A first vibration having a first vibration frequency, and a second vibration having a second vibration frequency different from the first vibration frequency.
- the excitation means 20 causes the vibration at the resonance frequency of the vibration system including the diaphragm 12, the elastic portion including the constricted portion 32, and the lever 31 to be performed as the first vibration. Vibration at a frequency corresponding to a higher resonance frequency of the frequency is performed by the diaphragm 12 as the second vibration. That is, in FIGS.
- the drive circuit 22 drives the piezoelectric element 21 at a frequency corresponding to the resonance frequency of the vibration system including the diaphragm 12 and the lever 32.
- the first and second narrow sections 1 2 1 and 1 2 2 are formed between the rectangular section 1 20 and the plate 1 1.
- diaphragm 12 performs bending vibration (first vibration) at a vibration frequency (first vibration frequency) corresponding to the drive signal.
- one end portion 126 of the vibrating body 12 serves as a fixed end, and only the other end portion 125 serves as a movable end, and vibrates in an in-plane direction indicated by an arrow F.
- the lever 3 2 whose base end 3 2 1 is connected to this other end 1 2 5 has a free end 3 2 2 with an arrow C Vibrates in the in-plane direction of the diaphragm 12 as shown by, and transmits it to the driven member (not shown). Therefore, bodily sensation vibration or the like can be generated.
- the drive circuit 22 supplies the piezoelectric element 21 with a frequency corresponding to a higher resonance frequency of the vibration system resonance frequency (including the vibration plate 12 but not the lever 13 2, the inherent resonance frequency of the vibration system).
- the diaphragm 12 has a vibration frequency (second vibration frequency) corresponding to the drive signal, as schematically shown by an arrow A in FIG.
- the excitation means 20 causes the one diaphragm 12 to vibrate at different frequencies, and outputs vibrations having different vibration frequencies. Therefore, by utilizing the vibrations having different frequencies, it is possible to drive the driven member and generate an alarm sound, or generate an audible sound and a bodily sensation, and the like. The weight can be reduced.
- the actuator 10 of this embodiment is a new type of actuator that takes out the out-of-plane bending vibration of the diaphragm 1 2 as the in-plane vibration at the free end 32 of the lever 32. 0, and can be configured with few components. Furthermore, in the embodiment of the present embodiment, it is not necessary to dispose members above and below the diaphragm 12, so that the diaphragm 12 is constructed in a space with a small thickness in which bending vibration is performed in an out-of-plane direction. It can be mounted in a thin device. Further, in this embodiment, since the lever 32 is connected to the diaphragm 12, a vibration system including the lever 32 is formed, so that the resonance frequency is low.
- a speed reduction mechanism is not required. Suitable for mounting on a device.
- a plate 11 plate-like member arranged in a plane with respect to the diaphragm 12 is used, and the constricted portion 31 of the plate 11 is used to form the diaphragm 12. Since the end portion can be displaced in the in-plane direction, a thick spring is not used, so that it is suitable for reducing the thickness of the actuator.
- the vibration is output from the plate-shaped lever 32 (plate-shaped lever), this point is also suitable for making the actuator 10 thinner.
- the use of a unimorph-type piezoelectric element 21 formed on the upper surface side of the diaphragm 12 as the excitation means 20 is also suitable for reducing the thickness of the actuator 10.
- FIG. 9 shows an example of using the fact that the thus configured actuary 10 is used as a notification device 700 for a pocket-belt mobile phone.
- the control unit 730 is realized by a microcomputer, a ROM (not shown) in which a program is stored, or the like. And controls the entire pager.
- the notification diaphragm 51 as a driven member is connected to the lever 21 of the actuator 10.
- the notification diaphragm 51 vibrates in response to the output of the lever 21 of the actuator 10 and generates an audible sound, as described below, and, depending on the vibration frequency, replaces the audible sound. Generates bodily sensation vibration.
- the control unit 730 determines whether or not the call signal is a signal for the pager.
- the unit 730 first instructs the drive circuit 22 of the actuator 10 to output a drive signal for generating bodily sensation vibration (a drive signal having a frequency corresponding to the resonance frequency of the vibration system). .
- the piezoelectric element 21 vibrates the diaphragm 12 at a frequency corresponding to the drive signal for generating the bodily sensation vibration, and its output is amplified via the lever 32, and then the information diaphragm 51 Is transmitted to As a result, the notification diaphragm 51 vibrates at a frequency corresponding to the drive signal for generating bodily sensation vibration, and generates bodily sensation vibration. Therefore, the user knows that there was a reception due to this bodily sensation, and stopped the switch. Pressing 50 stops bodily sensation vibration.
- the control unit 730 sets the stop switch 750 even if a certain period of time has passed since the notification diaphragm 51 generated the bodily sensation vibration.
- the drive signal for generating audible sound is replaced by the drive signal for generating audible sound (corresponding to the higher-order resonance frequency among the resonance frequencies of the vibration system)
- the driving circuit 22 is instructed to output a driving signal of a frequency that changes. Accordingly, since the piezoelectric element 21 vibrates the diaphragm 12 at a vibration frequency corresponding to the audible sound generation drive signal, the notification diaphragm 51 to which the output is transmitted is also used for the audible sound generation.
- the notification diaphragm 51 Vibrates at the vibration frequency corresponding to the drive signal. As a result, the notification diaphragm 51 generates an audible sound. Therefore, the user knows that the reception was made by the audible sound, and presses the stop switch 750 to stop the generation of the audible sound.
- a common factory 10 is used, and the diaphragm 12 used for the same is vibrated at different frequencies. Therefore, in the related art, it was necessary to mount each of the sound generating device and the vibration generating device on a pager or the like. Information can be provided. Therefore, there is an advantage that the pager can be reduced in size and weight. In addition, since the actuator 10 occupies only a narrow space for the diaphragm 12 to perform bending vibration in the out-of-plane direction, even if the pager is thinned, it can be accommodated in the case.
- the notification device 700 is configured so that an audible sound is automatically generated unless a switch operation for stopping the sensory vibration is made even if a certain period of time has elapsed after the occurrence of the bodily sensation. It may be configured to select whether to perform the operation by an external operation according to the situation. Even in the case of such a configuration, if the notification device 700 of the present embodiment is used, two types of notification are performed by one device, so that the pager can be reduced in size and weight.
- an example in which the audible sound and the bodily sensation vibration are generated in the actuator 10 has been described. There is no limitation on the use of 10. o In the above embodiment, a unimorph-type piezoelectric element 21 is used as the piezoelectric element 21. However, the present invention is not limited to this, and a bimorph-type piezoelectric element 21 may be used.
- the diaphragm 11 was made to perform the vibration modes shown in FIGS. 8A and 8B as two kinds of vibration forms.
- An audible sound and a bodily sensation signal may be generated by causing the diaphragm 11 to perform an out-of-plane radial vibration by causing a longitudinal vibration in a direction and driving with a low frequency signal.
- a vibration output system is connected to one end of the diaphragm, and the other end is a fixed end, or another vibration output system is connected to the other end.
- the movable end to which the vibration output system 30 is connected is provided only at one end 1 2 5 of the diaphragm 12.
- the other end 1 26 is a free end.
- FIGS. 10 (A) and (B) are a plan view and a cross-sectional view of a main part of an actuator according to Embodiment 7 of the present invention, respectively.
- the actuator 10 shown in these figures is generally composed of a plate 11 with a thickness of about 0.5 mm, which is screwed and fixed at two places to a base (not shown) on which it is mounted.
- a diaphragm 12 having a thickness of about 0.05 mm is disposed in a plane with respect to the plate 11, and a vertical vibration is applied to the diaphragm 12 (arrow B in FIG. 10 (B)).
- Exciting means 20 for performing the above-mentioned operations is constituted.
- a vibration output system 30 that amplifies and outputs longitudinal vibration of the diaphragm 12 as in-plane vibration by using the plate 11 is configured.
- the piezoelectric element 21 having a thickness of about 0.2 mm is formed on both sides of the diaphragm 12. Therefore, in the excitation means 20, the drive circuit 22 uses the electrodes (not shown) of the piezoelectric element 21 formed on both surfaces of the diaphragm 12 and the diaphragm 12 as the both electrodes, respectively. A drive signal having a frequency corresponding to the resonance frequency of the vibration system of the actuator is applied.
- the plate 11 is provided with a main body 11 1 disposed parallel to the diaphragm 12 and having both sides screwed to the base, and both ends of the main body 11 1 Of these, a lever 3 2 extending from the side located on one side 1 2 5 which is the movable end of the diaphragm 1 2 to the side opposite to the main body 1 1 1 with respect to the diaphragm 1 2 is formed.
- a constricted portion 31 is formed at a base portion between the lever 13 and the main body portion 11 1.
- the lever 3 2 has a structure in which the base end 3 2 1 is connected to the constricted portion 3 1 side and the movable end side of the diaphragm 1 2, and the distal end side extends therefrom as a free end 3 2 2. It has become.
- the lever 32 has a dimension between the constricted portion 31 and the connection position with the movable end of the diaphragm 12 and a dimension between the constricted portion 31 and the tip (the vibration output end) of the lever 32.
- the displacement in the in-plane direction of the connection portion with the movable end of diaphragm 12 is amplified and output with the lever ratio corresponding to the ratio.
- the diaphragm 12 is also formed for one plate 11. That is, in the present embodiment, the thin portion formed on the same plate member (plate 11) as the lever 32 is used as the diaphragm 12, so that the number of parts can be reduced. Further, since the diaphragm 12 is connected to the lever 32 so as to be positioned at the center in the thickness direction of the lever 32, the displacement of the diaphragm 12 in the in-plane direction is transmitted to the lever 32. When this is done, the diaphragm 12 and the lever 32 do not twist.
- the piezoelectric element 21 causes the diaphragm 12 to vibrate vertically.
- a constricted portion 3 1 is formed between the diaphragm 11 and the main body 1 1 1 of the plate 11.
- the thus configured actuary 10 is used as a drive device for the ring-shaped date indicator 51 (driven member 500) of the calendar display mechanism 50 of the wristwatch, as in the first embodiment.
- the actuator 10 when the actuator 10 is actuated and the free end 3 2 2 of the lever 3 2 vibrates in the in-plane direction of the diaphragm 12 around the constricted portion 3 1, the lever 3 2 Since the inner peripheral edge of 1 is repeatedly struck in the direction toward arrow C, the date indicator 51 rotates in the direction indicated by arrow D, and performs day feeding, thereby achieving the same effects as in the first embodiment.
- the vibration transmission path from the diaphragm 12 to the lever 32 is joined via an adhesive or the like. Because there is no part, vibration absorption does not occur. Therefore, since the Q value of the piezoelectric vibrator is high, there is an advantage that the efficiency of transmitting vibration from the diaphragm 12 to the lever 32 is improved.
- the diaphragm 12 is positioned substantially at the center of the lever 13 in the thickness direction. Connected to levers 1 and 2. Therefore, when displacement is transmitted from diaphragm 12 to lever 32, diaphragm 12 and lever 32 are not twisted.
- FIGS. 11 (A) and 11 (B) are a plan view and a cross-sectional view of an essential part of an actuator according to an eighth embodiment of the present invention, respectively. Since the basic configuration of the actuary of this embodiment is the same as that of the seventh embodiment, parts having common functions are denoted by the same reference numerals in FIGS. 11 (A) and (B). Detailed description thereof will be omitted.
- the actuator 10 shown in these figures has a plate 11 having a thickness of about 0.5 mm, which is fixed to a base (not shown) at two places by screws.
- the vibration output system 30 is configured to amplify and output the longitudinal vibration of the diaphragm 12 as in-plane vibration by using the plate 11.
- the diaphragm 12 has a piezoelectric element having a thickness of about 0.2 mm on both sides.
- the drive circuit 22 uses the electrodes of the piezoelectric element 21 formed on both surfaces of the vibration plate 12 and the vibration plate 12 as the both poles, respectively, to form the actuator 10.
- a drive signal having a frequency corresponding to the resonance frequency of the vibration system is applied.c
- One end 1 25 of the diaphragm 12 is connected to the vibration output system 30 as a movable end, while the other end is connected.
- 1 2 6 is a completely free end.
- a weight 1 29 thicker than the diaphragm 12 is fixed to the other end 1 26.
- the plate 11 has a main body portion 11 1 arranged in parallel with the diaphragm 12 and both sides screwed to the base, and both ends of the main body portion 11 1
- a lever 32 extending from the side located on one end 1 25 which is the movable end of the diaphragm 1 2 to the opposite side of the main body 1 1 1 with respect to the diaphragm 1 2 Have been.
- a constricted portion 31 is formed at the base of the lever 32 and the main body portion 11 1.
- the lever 32 has a structure in which the base end 3 2 1 is connected to the constricted portion 3 1 side and the movable end side of the diaphragm 1 2, and the distal end side extends therefrom as a free end 3 2 2. Has become.
- the diaphragm 12 is formed for one plate 11. That is, in the present embodiment, the thin portion formed on the same plate member (plate 11) as the lever 32 is used as the diaphragm 12, so that the number of parts can be reduced.
- the piezoelectric element 21 causes the diaphragm 12 to vibrate vertically.
- one end portion 125 of the diaphragm 12 that is to be a movable end repeats displacement in the in-plane direction of the diaphragm 12 due to elastic deformation at the constricted portion 31.
- the lever 3 2 connected to the proximal end 3 2 1 on the side of the end 1 2 5 has a free end 3 2 2 vibrating in the in-plane direction of the diaphragm 12 with the constricted portion 3 1 as a fulcrum. This is transmitted to the driven member 500 as indicated by arrow C.
- the watch 10 When it is used as a drive device for the under display mechanism 50, the actuator 10 operates and the free end 3 2 2 of the lever 3 2 moves in the in-plane direction of the diaphragm 12 around the constricted portion 31.
- the lever 32 When vibrated, the lever 32 repeatedly hits the inner peripheral edge of the ring-shaped date indicator 51 in the direction toward arrow C, so that the wheel 51 rotates in the direction indicated by arrow D, and the date feed is performed.
- the same effects as in the first and third embodiments can be obtained.
- the diaphragm 12 does not inadvertently vibrate even when a disturbance is applied. . Therefore, if the actuary 10 of this embodiment is used as the drive of the calendar display mechanism 50 of the wristwatch, the date indicator 51 is not rotated due to disturbance, so that the date display is shifted. No problems occur.
- the weight 1 29 is attached to the other end 1 26 which is the free end of the diaphragm 12, the resonance frequency can be set low, and the frequency can be reduced by cutting the weight 1 29. Adjustments can be made.
- the diaphragm 12 and the lever 32 are formed on the same plate-like member (plate 11), the diaphragm 12 is positioned substantially at the center of the lever 13 in the thickness direction. Connected to levers 1 and 2. Therefore, when displacement is transmitted from diaphragm 12 to lever 13, diaphragm 12 and lever 32 are not twisted.
- FIGS. 12 (A) and 12 (B) are a plan view and a cross-sectional view of a main part of an actuator according to Embodiment 9 of the present invention, respectively. Since the basic configuration of the actuary of this embodiment is the same as that of the fourth embodiment, parts having common functions are denoted by the same reference numerals in FIGS. 12 (A) and (B). Detailed description thereof will be omitted.
- the actuator 10 shown in these figures has a plate 11 having a thickness of about 0.5 mm, which is fixed to a base (not shown) at two places by screws.
- the plate 11 is used to control the longitudinal vibration of the diaphragm 12 in the plane.
- a vibration output system 30 that amplifies and outputs the vibration in the direction is configured.
- the vibration plate 12 includes a piezoelectric element 21 having a thickness of about 0.2 mm on both sides. I have. Therefore, in the excitation means 20, the drive circuit 22 uses the electrodes of the piezoelectric element 21 formed on both surfaces of the vibration plate 12 and the vibration plate 12 as the both poles, respectively, to form the actuator 10.
- a drive signal having a frequency corresponding to the resonance frequency of the vibration system is applied.
- one end 125 of diaphragm 12 is connected to vibration output system 30 as a movable end, while the other end is connected. 1 2 6 is a completely free end.
- diaphragm 12 is formed wider than in Embodiment 3, and width 1 is larger than length L2.
- the plate 11 includes a main body 11 1 disposed parallel to the vibration plate 12 and having both sides screwed to the base, and two ends of the main body 11 1.
- a lever 3 2 extending from the side located on one end 1 2 5 side, which is the movable end of the diaphragm 1 2, to the opposite side of the main body 1 1 1 with respect to the diaphragm 1 2 is configured.
- a constricted portion 31 is formed at a base portion of the lever 32 and the main body portion 11 1.
- the lever 32 has a structure in which the proximal end 3 2 1 is connected to the constricted portion 3 1 side and the movable end side of the diaphragm 1 2, and the distal end side extends therefrom as a free end 3 2 2. ing.
- the diaphragm 12 is formed for one plate 11. That is, in the present embodiment, since the thin portion formed on the same plate-like member (plate 11) as lever 13 is used as diaphragm 12, the number of components can be reduced.
- the piezoelectric element 21 causes the diaphragm 12 to vibrate vertically.
- one end portion 125 of the diaphragm 12 that is to be a movable end repeats displacement in the in-plane direction of the diaphragm 12 due to elastic deformation at the constricted portion 31.
- the lever 3 2 connected to the proximal end 3 2 1 on the side of the end 1 2 5 has a free end 3 2 2 vibrating in the in-plane direction of the diaphragm 12 with the constricted portion 3 1 as a fulcrum.
- the actuator 10 When the actuator 10 thus configured is used as a driving device of the calendar display mechanism 50 of the wristwatch as in the first embodiment, the actuator 10 operates to operate the lever 3 2.
- the free end 3 2 2 vibrates in the in-plane direction of the diaphragm 12 around the constricted portion 3 1, the lever 32 repeatedly strikes the inner peripheral edge of the wheel 51 in the direction of arrow C.
- the date wheel 51 rotates in the direction indicated by the arrow D, and performs the day feed, thereby achieving the same effects as the first and third embodiments.
- the diaphragm 12 is formed to be wide, in the diaphragm 12, the longitudinal vibration that can be controlled by the drive signal from the excitation unit 20 occurs preferentially, and the driving from the excitation unit 20 is performed. No bending vibration that cannot be controlled by signals is generated. Therefore, when the actuator 10 of the present embodiment is used as a drive of the calendar display mechanism 50 of a wristwatch, the careless rotation of the date wheel 51 caused by uncontrollable bending vibration of the diaphragm 12 is performed. Since the display does not occur, there will be no problems such as incorrect date display.
- the width of the constricted portion 31 be smaller than the thickness of the plate-like member constituting this portion.
- the diaphragm 12 and the lever 32 are formed on the same plate-like member (plate 11), the diaphragm 12 is positioned substantially at the center of the lever 13 in the thickness direction. Connected to levers 1 and 2 as shown. Therefore, when displacement is transmitted from diaphragm 12 to lever 13, diaphragm 12 and lever 32 are not twisted.
- FIGS. 13 (A) and ( ⁇ ) are a plan view and a cross-sectional view of a main part, respectively, of an embodiment according to Embodiment 10 of the present invention. Since the basic configuration of the embodiment of the present embodiment is the same as that of the embodiment of the seventh embodiment, parts having common functions are denoted by the same reference numerals and detailed description thereof will be given. Is omitted.
- the actuator 10 shown in these figures has a plate 11 having an L-shaped planar shape and a thickness of about 0.5 mm, and a thickness arranged in a plane with respect to the plate 11.
- a diaphragm 12 having a diameter of about 0.05 mm and excitation means 20 for causing the diaphragm 12 to vibrate in a vertical direction (indicated by an arrow B in FIG. 13 (B)) are formed. I have.
- the piezoelectric element 21 having a thickness of about 0.2 mm is formed on both sides of the diaphragm 12. Therefore, in the excitation means 20, the drive circuit 22 uses the electrodes (not shown) of the piezoelectric element 21 formed on both surfaces of the diaphragm 12 and the diaphragm 12 as the both electrodes, respectively. A drive signal having a frequency corresponding to the resonance frequency of the vibration system of the actuator is applied.
- one end portion 125 of diaphragm 12 is connected to plate 11 as a movable end, while the other end portion 126 is a completely free end.
- a vibration output system 30 that amplifies and outputs the longitudinal vibration of the diaphragm 12 as in-plane vibration by using the plate 11 is configured.
- a through hole 1 16 is formed in a portion corresponding to the corner 1 15 of the L-shaped plate 11, and the through hole 1 16 is provided with a shaft 17 standing up from a base (not shown). 1 has been passed.
- the through hole 1 16 is slightly larger than the diameter of the shaft 17 1, the plate 11 is rotatable around the shaft 17 1.
- the portion of the plate 11 that is perpendicular to the diaphragm 12 is the lever 32, and the root of the lever 32 has a constricted portion 31 (elastic portion). ing.
- the base end 3 2 1 is connected to the constricted portion 3 1 side and the movable end side of the diaphragm 1 2, and the distal end side extends therefrom as a free end 3 2 2 .
- a portion of the plate 11 parallel to the diaphragm 12 is a pressure spring 1 18, and the pressure spring 1 18 and the lever 32 are integrally formed.
- a shaft 17 1 rising from the base is passed through a through hole 1 16 formed in a portion corresponding to the corner 1 15, and a tip of the pressure spring 1 18 The part is positioned by a fixed shaft 181, which rises from the side of the base.
- a roller 60 of a reduction mechanism described later is arranged beside the free end 32 of the lever 32. Roller 60 contacts the side surface of the free end 3 2 2 of the lever 3 2, rotates the plate 1 1 around the screw 17 1, and presses the pressure spring 1 1 8 against the fixed shaft 18 1 In state. Conversely, the free end 3 22 of the lever 32 is pressed against the outer peripheral surface of the roller 60 by the pressure spring 1 18.
- the free end 3 222 of the lever 32 is elastically in contact with the outer peripheral side surface of the roller 60 by the elastic force of the constricted portion 31.
- the connecting portion 1 17 of the lever 32 with the diaphragm 12 is thin. Therefore, the diaphragm 1 2 is connected by the thin portion of the plate-like member (plate 11) constituting the lever 32, so that the connecting portion (overlapping portion) between the diaphragm 12 and the lever 13 2 is formed. Can be made thin. Also, since the diaphragm 12 is connected to the lever 32 so as to be located at the center in the thickness direction of the lever 32, the displacement of the diaphragm 12 in the in-plane direction is transmitted to the lever 32. When this is done, the diaphragm 12 and the lever 13 do not twist.
- the diaphragm 1 2 is joined at the joining portion 1 17 of the lever 32 where the width is small, the joining area is small. Therefore, the displacement of the movable end of the diaphragm 12 can be transmitted to the lever 32 efficiently. Moreover, the diaphragm 12 and the lever 32 are supported by a base (not shown) by the elastic portion 31 and are in a floating state, so that vibration is transmitted from the diaphragm 12 to the lever 13. There is almost no energy loss.
- the diaphragm 12 and the lever 32 are connected at a right angle, the displacement of the movable end of the diaphragm 12 can be efficiently transmitted to the lever 32.
- the piezoelectric element 21 causes the diaphragm 12 to vibrate vertically.
- the displacement of the movable end (one end 1 25) of the vibrating body 12 in the in-plane direction (indicated by an arrow B in FIG. 13 (B)) is transmitted to the lever 12.
- the lever 12 bends in the in-plane direction with the connecting portion between the vibrating body 12 and the lever 12 as a node point, as shown by a dashed line LL1 in FIG. 13 (A).
- FIG. 14 is a plan view showing a manner in which the actuary according to the present embodiment is mounted on a calendar display device of a wristwatch.
- the calendar display mechanism 50 shown in FIG. 14 is engaged with both a ring-shaped date wheel 51 (a driven member) on which numbers for displaying the date are printed and the driving wheel 31 and drives the driving wheel 3.
- the vehicle has a Geneva structure including a display transmission wheel 52 for transmitting one rotation to the date wheel 51, and displays the date using the rotational driving force transmitted from the driving vehicle 31. Since the date wheel 51 has a ring shape without a rotation center axis, when rotating while positioning it, in this embodiment, a guide using a bin or a dowel is provided on the inner or outer side of the date wheel 51. (Not shown).
- the date wheel 51 has 31 inner teeth 518 formed on the inner peripheral edge at equal angular intervals.
- the driving wheel 3 1 includes a gear 3 11 having an outer peripheral edge formed with two concave portions 3 1 3 which engage with the display transmission wheel 5 2, and a gear 3 1 2 having a larger diameter than the gear 3 1 1. Has a structure in which two sheets are bonded together.
- the display transmission wheel 52 is movable within the range of formation of the hole 529, but the first spring 581 is applied to the rotation center shaft 527 of the display transmission wheel 52.
- the transmission car 52 for display is pushed between the driving car 31 and the date wheel 51.
- the second spring 582 is attached to the rotation center shaft 527 of the display transmission wheel 52. Since it is in contact, the display transmission vehicle 52 does not come off from between the drive vehicle 31 and the date wheel 51.
- the roller 60 described with reference to FIG. 13 (A) is formed integrally with the gear 3 4 that meshes with the gear 3 12 of the driving wheel 31 via the intermediate gear 32. .
- this rotational driving force is transmitted to the gear 311 of the drive wheel 3 1 via the gear 34, the intermediate gear 32 and the gear 312. Is done. Therefore, the driving wheel 3 1 rotates in the direction of arrow D 2, and the recess 3 formed in the rotating gear 3 1 1
- the display transmission wheel 52 rotates in the direction indicated by the arrow D3.
- the display transmission wheel 52 rotates the wheel 51 in the direction indicated by the arrow D4 (forward direction) to switch the display.
- a display correction fast-forward mechanism 9 for rotating the date wheel 51 at a rapid traverse to correct the date display without passing through the driving vehicle 31 and the display transmission wheel 52 is configured.
- the display correcting fast-forward mechanism 9 includes a winding stem (not shown) having a crown (not shown) fixed to an outer end thereof, a drum wheel fixed to the winding stem, and a The first display correction transmission wheel 9 4 to which rotation is transmitted, and the date wheel 5 1 when the crown is pulled out and turned in the date display correction direction to correct the calendar
- a second display correction transmission wheel 96 that is shifted in position is configured.
- the second display correction transmission vehicle 96 shifts from the position indicated by the solid line L12 to the position indicated by the one-dot chain line L11, and the date is changed. Since the crown is engaged with the car 51, the rotation operation of the crown is performed by the arrow D4 to the date wheel 51 via the first display correcting transmission wheel 94 and the second display correcting transmission wheel 96. Transmitted as a rotation in the direction. Therefore, it is possible to manually fast-forward the date wheel 51. However, when the crown is pushed in, the hourglass is displaced from the position of engagement with the first display correction transmission wheel 94, and their engagement is released.
- the Actuyue Ichigo 10 drives the date dial 51 with a mechanism independent of the time display movement, the same specifications are applied to watches of different types of time display movement. Can be incorporated in Furthermore, in the case of Actuyue 1/10, the diaphragm 1 2 and the lever 32 both vibrate in the in-plane direction, making it thin. it can. Therefore, there is an advantage that the actuary 10 can be arranged in the timepiece so as to be overlapped with the time display move-me.
- FIGS. 15 (A) and (B) are a plan view and a cross-sectional view of an essential part of an embodiment according to Embodiment 11 of the present invention, respectively. Since the basic configuration of the embodiment of the present embodiment is the same as that of the embodiment according to the tenth embodiment, portions having common functions are denoted by the same reference numerals, and a detailed description thereof will be given. Is omitted.
- the calendar display mechanism 50 shown in FIG. 14 may use the actuator 10 shown in FIGS. 15 (A) and (B).
- the actuator 10 of the present embodiment has a U-shaped plate 11 having a thickness of about 0.5 mm and a plate 11. And a vibration plate 12 having a thickness of about 0.05 mm arranged in a plane with respect to the vibration plate 12, and the vibration of the vibration plate 12 in the longitudinal direction (shown by an arrow B in FIG. 15 (B)). ) Is provided.
- the piezoelectric element 21 having a thickness of about 0.2 mm is formed on both sides of the diaphragm 12. Therefore, in the excitation means 20, the drive circuit 22 uses the electrodes (not shown) of the piezoelectric element 21 formed on both surfaces of the diaphragm 12 and the diaphragm 12 as the both electrodes, respectively. A drive signal having a frequency corresponding to the resonance frequency of the vibration system of the actuator is applied.
- one end portion 125 of diaphragm 12 is connected to plate 11 as a movable end, while the other end portion 126 is a completely free end.
- a vibration output system 30 that amplifies and outputs the longitudinal vibration of the diaphragm 12 as in-plane vibration by using the plate 11 is configured.
- a through-hole 1 16 is formed in a portion corresponding to the corner 1 15 of the U-shaped plate 11, and a shaft rising from a base (not shown) is formed in the through-hole 1 16. 1 ⁇ 1 is passed.
- the through hole 1 16 is slightly larger than the diameter of the shaft 17 1, the plate 11 is rotatable around the shaft 17 1.
- the wide portion of the U-shaped plate 11 that is perpendicular to the diaphragm 12 is the lever 32, At the base of the lever 32, a constricted portion 3 1 (elastic portion) is formed. Therefore, in the lever 1 32, the base end 3 2 1 is connected to the constricted portion 3 1 side and the movable end side of the diaphragm 1 2, and the distal end side extends therefrom as a free end 3 2 2.
- a narrow portion of the plate 11 parallel to the lever 32 is a pressure spring 118, and the pressure spring 118 and the lever 32 are integrally formed.
- a shaft 17 1 rising from the base is passed through a through hole 1 16 formed in a portion corresponding to the corner 1 15, and a tip of the pressure spring 1 18 The part is positioned by a fixed shaft 181, which rises from the side of the base.
- a roller 60 of a reduction mechanism 70 (see FIG. 14) is disposed, and the roller 60 is provided with a free end of the lever 32.
- the plate 11 is rotated around the shaft 17 1 in contact with the side surface of the end 3 2 2, and the pressure spring 1 18 is pressed against the fixed shaft 18 1. Therefore, the free end 3 222 of the lever 32 comes into elastic contact with the outer peripheral side surface of the roller 60 by the elastic force of the constricted portion 31.
- the displacement of the movable end of the diaphragm 12 can be transmitted to the lever 32 efficiently. Further, since the diaphragm 12 and the lever 32 are connected at a right angle, the displacement of the movable end of the diaphragm 12 can be transmitted to the lever 32 efficiently.
- the lever 12 has a resonance in which the connecting portion between the vibrating body 12 and the lever 12 is bent in an in-plane direction with a node point as a node point. Vibration occurs, and the movable end of vibrating body 1 (one end 1
- FIG. 16 (A) is a plan view of the factory according to Embodiment 12 of the present invention. Note that the basic configuration of the factory of this embodiment is the same as that of the factory according to the tenth and eleventh embodiments. Detailed description is omitted.
- roller 329 contacts the driven member or the roller 60 of the speed reduction mechanism 70.
- the excitation means (not shown) provides the first vibration at the resonance frequency of the vibration system including the vibration plate and the excitation frequency (not shown) to the vibration plate 12.
- FIGS. 16 (A) and (B) show the state of the respective vibrations in dot-dash lines LL 1 and LL 2.
- the lever 32 performs a resonance vibration in which the lever 32 bends at different orders in the in-plane direction.
- the projections 32 9 of the levers 32 vibrate in different directions and hit the roller 60 in different directions. Therefore, the rotation direction of the roller 60 can be reversed as shown by the arrows D11 and D12 only by changing the order of the resonance vibration performed by the levers 132.
- the date indicator 51 of the calendar display mechanism 50 of the wristwatch is rotated by the actuary 10 of the present embodiment, but the day indicator is rotated by the actuator 10. May be.
- Actuyue 10 to which the present invention is applied displays not only the calendar mechanism of the wristwatch, but also the time, month, year, age, sun position, as well as water depth, pressure, temperature, humidity, direction, speed, etc. It can be used as a drive device of a device that performs the following. Furthermore, it is needless to say that it can be used as a driving device for various devices other than the display device.
- the actuator according to the present invention is not limited to the use in which the driven member is a ring-shaped calendar display car or the like, but may be an actuator that reciprocates linearly or generates vibration. It can also be used for events such as nights.
- a unimorph-type piezoelectric element 21 is used as the piezoelectric element 21.
- a bimorph-type piezoelectric element 21 may be used depending on the vibration mode.
- the lever 11 vibrates due to disturbance, and this vibration is generated by the vibration plate 1 1.
- An electromotive force is generated in the piezoelectric element 21. Therefore, if this electromotive force detection circuit (disturbance monitoring means) is formed, it can be monitored whether or not disturbance has been applied to the lever 11. Further, an output circuit for outputting an electromotive force generated in the piezoelectric element 21 when the lever 11 is vibrated by disturbance and the vibration is transmitted to the diaphragm 12 is provided to be used as a power generator. Good.
- the excitation means 20 includes a magnetic body 23 such as a permanent magnet or a movable iron piece formed on the diaphragm 12, and a magnetic body 2. Any excitation means 20 can be used as long as the diaphragm 12 bends and vibrates in an out-of-plane direction, such as one provided with an electromagnetic magnet 24 facing the magnet 3 and a drive circuit 25 for the electromagnetic magnet 24. May be used.
- the lever 32 drives the driven member with vibrations of different frequencies.
- the notification device can generate both an audible sound and a bodily sensation using a single event. Applicability of the invention
- the actuator when the excitation means drives the diaphragm, the movable end of the diaphragm is displaced in the in-plane direction. Then, the vibration output system amplifies this displacement as in-plane vibration and outputs it. Therefore, according to the actuator of the present invention, it is a new type of actuator that takes out the vibration of the diaphragm as the vibration in the in-plane direction, and can be configured with a small number of components, and the diaphragm vibrates in the out-of-plane direction. There is an advantage that the actuary can be configured in a space of a thickness dimension.
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
- Electromechanical Clocks (AREA)
- Piezo-Electric Transducers For Audible Bands (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/269,806 US6266296B1 (en) | 1997-08-04 | 1998-08-03 | Actuator, and timepiece and notification device using the same |
DE69824153T DE69824153T2 (de) | 1997-08-04 | 1998-08-03 | Betätiger, und damit ausgestattete uhr und meldegerät |
JP51080399A JP3387101B2 (ja) | 1997-08-04 | 1998-08-03 | アクチュエータ、およびそれを用いた時計並びに報知装置 |
CN98801470A CN1241322A (zh) | 1997-08-04 | 1998-08-03 | 传动装置及使用它的钟表和通知装置 |
EP98935348A EP0963033B1 (en) | 1997-08-04 | 1998-08-03 | Actuator, and clock and annunciator mounted with the same |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
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JP20947097 | 1997-08-04 | ||
JP9/209470 | 1997-08-04 | ||
JP8225498 | 1998-03-27 | ||
JP10/82254 | 1998-03-27 |
Publications (1)
Publication Number | Publication Date |
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WO1999007063A1 true WO1999007063A1 (fr) | 1999-02-11 |
Family
ID=26423277
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1998/003464 WO1999007063A1 (fr) | 1997-08-04 | 1998-08-03 | Actionneur, et horloge et element indicateur comportant ledit actionneur |
Country Status (6)
Country | Link |
---|---|
US (1) | US6266296B1 (ja) |
EP (1) | EP0963033B1 (ja) |
JP (1) | JP3387101B2 (ja) |
CN (1) | CN1241322A (ja) |
DE (1) | DE69824153T2 (ja) |
WO (1) | WO1999007063A1 (ja) |
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JP4376342B2 (ja) * | 1999-03-02 | 2009-12-02 | セイコーインスツル株式会社 | 電子時計 |
US7187103B2 (en) * | 2001-06-06 | 2007-03-06 | Miniswys Sa | Piezoelectric drive |
EP1438754B1 (de) * | 2001-10-22 | 2005-12-28 | miniswys SA | Piezoelektrischer antrieb |
AU2003206604A1 (en) * | 2002-03-15 | 2003-09-29 | Creaholic S. A. | Piezoelectric motor and method for actuating same |
JP2004166479A (ja) * | 2002-06-14 | 2004-06-10 | Seiko Epson Corp | 回転型駆動装置およびこれを備えた装置 |
US20040233793A1 (en) * | 2002-08-30 | 2004-11-25 | Akihiro Sawada | Analog electronic timepiece |
US6789777B2 (en) * | 2002-12-02 | 2004-09-14 | Caterpillar Inc | Piezo solenoid actuator and valve using same |
US20040233794A1 (en) * | 2003-02-21 | 2004-11-25 | Seiko Epson Corporation | Timepiece driving apparatus and time calculating apparatus |
CN101652921A (zh) * | 2007-02-06 | 2010-02-17 | 夏普株式会社 | 驱动装置、具备该驱动装置的摄像装置、摄像设备 |
US7922385B2 (en) * | 2007-03-01 | 2011-04-12 | Seiko Epson Corporation | Piezoelectric drive device and electronic device |
JP4465397B2 (ja) * | 2008-05-12 | 2010-05-19 | シャープ株式会社 | 超音波モータ |
JP2010187524A (ja) * | 2009-01-14 | 2010-08-26 | Seiko Epson Corp | 圧電駆動装置および電子機器 |
EP2463732B1 (fr) | 2010-12-10 | 2016-03-30 | Montres Breguet SA | Mécanisme de sonnerie d'une montre ou d'une boîte à musique |
JP6011993B2 (ja) * | 2012-04-18 | 2016-10-25 | カシオ計算機株式会社 | 情報表示装置および電子時計 |
CN103402152A (zh) * | 2013-07-16 | 2013-11-20 | 衡阳加一电子科技有限公司 | 一种触觉通知装置及无线耳机 |
BE1022342B1 (nl) * | 2014-01-09 | 2016-03-25 | Xeryon Bvba | Positioneringsinrichting |
CN106716264B (zh) * | 2014-09-25 | 2019-07-16 | 斯沃奇集团研究和开发有限公司 | 钟表及钟表机构 |
WO2016185824A1 (ja) * | 2015-05-21 | 2016-11-24 | シャープ株式会社 | 超音波アクチュエータ |
ES2690986T3 (es) * | 2016-05-09 | 2018-11-23 | Eurodrill Gmbh | Generador de oscilaciones |
CN113258824A (zh) * | 2021-05-31 | 2021-08-13 | 吉林大学 | 一种微小型粘滑式压电电机及其驱动方法 |
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JPH0265092U (ja) * | 1988-10-31 | 1990-05-16 | ||
JPH0340896U (ja) * | 1989-08-31 | 1991-04-19 | ||
DE69511196T2 (de) * | 1994-09-29 | 2000-02-03 | Nec Corp | Piezoelektrische Klemmvorrichtung mit vergrösserter Bewegung |
JP2658930B2 (ja) * | 1994-12-27 | 1997-09-30 | 日本電気株式会社 | 圧電型回転駆動装置 |
CH686854B5 (de) * | 1994-12-29 | 1997-01-31 | Ebauchesfabrik Eta Ag | Piezoelektrischer Motor mit Einrichtung, die Informationen bezueglich der Rotorposition und/oder -drehzahl liefert. |
DE19523229A1 (de) * | 1995-06-27 | 1997-01-02 | Riad Dipl Ing Salim | Mikrogreifer für die Mikromontage |
JP3265461B2 (ja) | 1997-02-12 | 2002-03-11 | シャープ株式会社 | 超音波駆動モータ |
US5955820A (en) * | 1997-03-21 | 1999-09-21 | The Penn State Research Foundation | Ultrasonic motor |
-
1998
- 1998-08-03 CN CN98801470A patent/CN1241322A/zh active Pending
- 1998-08-03 EP EP98935348A patent/EP0963033B1/en not_active Expired - Lifetime
- 1998-08-03 DE DE69824153T patent/DE69824153T2/de not_active Expired - Lifetime
- 1998-08-03 JP JP51080399A patent/JP3387101B2/ja not_active Expired - Lifetime
- 1998-08-03 US US09/269,806 patent/US6266296B1/en not_active Expired - Lifetime
- 1998-08-03 WO PCT/JP1998/003464 patent/WO1999007063A1/ja active IP Right Grant
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JPS61296781A (ja) * | 1985-06-25 | 1986-12-27 | Nec Corp | 圧電型駆動装置 |
JPS63120277A (ja) * | 1986-11-07 | 1988-05-24 | Seiko Instr & Electronics Ltd | 電子時計 |
JPH01174281A (ja) * | 1987-12-28 | 1989-07-10 | Canon Inc | 振動波モータ |
JPH06225551A (ja) * | 1991-03-28 | 1994-08-12 | Eta Sa Fab Ebauches | 時計のための圧電モータ |
JPH04341644A (ja) * | 1991-05-16 | 1992-11-27 | Omron Corp | 変位発生装置 |
JPH0587950A (ja) * | 1991-09-26 | 1993-04-09 | Casio Comput Co Ltd | 電子時計 |
JPH0548447U (ja) * | 1991-11-28 | 1993-06-25 | 株式会社トーキン | アラーム装置 |
JPH05236595A (ja) * | 1992-02-25 | 1993-09-10 | Toshiba Corp | 磁歪式変位発生装置 |
JPH09135586A (ja) * | 1995-11-08 | 1997-05-20 | Nikon Corp | 振動アクチュエータ |
JPH09182469A (ja) * | 1995-12-25 | 1997-07-11 | Asmo Co Ltd | 超音波モータ及び超音波モータの駆動方法 |
Non-Patent Citations (1)
Title |
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See also references of EP0963033A4 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104216270A (zh) * | 2013-05-28 | 2014-12-17 | 蒙特雷布勒盖股份有限公司 | 设有选择音簧的振动模式的装置的报时机构 |
Also Published As
Publication number | Publication date |
---|---|
EP0963033B1 (en) | 2004-05-26 |
DE69824153T2 (de) | 2005-06-23 |
EP0963033A4 (en) | 2003-02-05 |
EP0963033A1 (en) | 1999-12-08 |
CN1241322A (zh) | 2000-01-12 |
JP3387101B2 (ja) | 2003-03-17 |
US6266296B1 (en) | 2001-07-24 |
DE69824153D1 (de) | 2004-07-01 |
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