JP5480069B2 - Portable electronic devices - Google Patents

Description

  The present invention relates to a portable electronic device having a vibration function.

In recent years, mobile electronic devices that use touch panels have been adopted to reduce the degree of freedom in user convenience and to provide various input screens due to the physical operation modes (keypads, switches, etc.) of mobile electronic devices. Is increasing. The touch panel performs touch (pressing) detection / input processing by touching the panel and fingers (pressing the panel).
However, in a touch panel type portable electronic device, when a button displayed on the touch panel is pressed, the tactile sensation of pressing the button with respect to a finger is not transmitted like a normal button. There is a problem that it is difficult.
In order to solve the problem, Patent Document 1 discloses a device having a touch panel that vibrates a finger by rotating a vibration motor and informs an operator that a button has been pressed.

JP 2002-140166 A

However, in the device described in Patent Document 1, since the vibration motor is used as it is, the entire terminal is vibrated, and the vibration is not transmitted only to the finger pressing the button, but the device is held. Because the vibration is transmitted to the entire hand, the feeling of pressing the button is poor.
Further, when the portable electronic device is a mobile phone, when the same motor is used as a vibration for notifying an incoming call, it is not possible to determine whether the incoming call is a button press when the incoming call is received during operation.

  The present invention has been made in view of such problems, and an object of the present invention is to provide vibration for presenting tactile sensation of a button displayed on a touch panel at a minimum cost by using a vibration motor. It is an object of the present invention to provide a portable electronic device that can realize the above.

In order to achieve the above object, the present invention includes a motor capable of rotating in the forward and reverse directions with an eccentric weight attached to a rotating shaft, and a member having a spring property that varies depending on the eccentric weight. In the portable electronic device that vibrates the main body of the portable electronic device due to the variation of the member, the spring-like member varies the vibration to the portable electronic device by varying differently at the time of normal rotation and reverse rotation of the motor, When the spring member is bent by the eccentric weight so that the spring member is bent, the eccentric weight hits the spring member when the motor rotates forward and backward. , and characterized in that said at reverse rotation and forward rotation different parts bending the spring property of certain members.

In order to achieve the above object, the present invention comprises a motor capable of rotating in the forward and reverse directions with an eccentric weight attached to a rotating shaft, and a member having a spring property that varies depending on the eccentric weight. In a portable electronic device that vibrates the portable electronic device main body due to a change in a certain member, the spring-like member varies differently during forward rotation and reverse rotation of the motor so that vibration to the portable electronic device is different. thereby, the spring property of certain members arranged to strike said eccentric weight, when striking the member said eccentric weight is with the spring property in the reverse rotation and forward rotation of the motor, with reverse rotation and at the forward and wherein varying the shape of the portion to be hit with the spring property of certain members.

In order to achieve the above object, the present invention comprises a motor capable of rotating in the forward and reverse directions with an eccentric weight attached to a rotating shaft, and a member having a spring property that varies depending on the eccentric weight. In a portable electronic device that vibrates the portable electronic device main body due to a change in a certain member, the spring-like member varies differently during forward rotation and reverse rotation of the motor so that vibration to the portable electronic device is different. thereby, a projection provided on said eccentric weight, wherein the projection is characterized in that arranged to strike the member with the spring property. In the present invention, it is preferable to provide a plurality of protrusions on the eccentric weight.

  The protrusion is housed in a recess provided in the eccentric weight so as to be able to project, is housed in the recess during forward rotation or reverse rotation of the motor, and protrudes from the recess during reverse rotation or forward rotation of the motor. preferable.

  The present invention can rotate the vibration motor mounted on the portable electronic device body and cause the portable electronic device body to vibrate differently during forward rotation and reverse rotation. By using the vibration for vibration as the vibration for reversing the motor as the vibration for presenting the touch of a button, it is possible to realize the vibration for presenting the touch of a button at a minimum cost.

It is a perspective view which shows the external appearance of a mobile telephone. FIG. 2 is a configuration block diagram of the mobile phone in FIG. 1. It is a schematic diagram which shows the attachment state of the motor for vibration mounted in the portable electronic device of this invention. It is a schematic diagram which shows a state when the motor for vibrations rotates forward. It is a schematic diagram which shows a state when the motor for vibration reverses. It is a schematic diagram which shows the attachment state of the motor for vibration which provided the projection part in the end surface of an eccentric weight. It is a schematic diagram which shows a state when the vibration motor which provided the projection part in the end surface of the eccentric weight rotated forward. It is a schematic diagram which shows a state when the vibration motor which provided the projection part in the end surface of the eccentric weight reversely rotated. It is a schematic diagram which shows the attachment state of the motor for vibration which provided the some protrusion part in the end surface of an eccentric weight. It is a schematic diagram which shows the attachment state of the motor for vibration when a spring material is used as a resin-type member. It is an image figure when making a projection part movable. It is a schematic diagram which shows the state of the protrusion part which is movable when the motor for vibrations rotates forward and reverse. It is a figure which shows an example of the mounting structure of the input device which has a touch panel.

  Embodiments of the present invention will be described with reference to the drawings. Here, the portable electronic device is, for example, an information terminal such as a mobile phone, a PDA (Personal Digital Assistant), a smartphone, a digital photo frame, an electronic dictionary, and an electronic book. In this embodiment, a mobile phone having a touch panel will be described. FIG. 1 is a perspective view showing an overview of a mobile phone. As shown in FIG. 1, the mobile phone is of a folding type in which a display-side main body 1 and an operation-side main body 2 are connected by a hinge portion 3. The display-side main body 1 includes a display-side housing 4 and a display unit 5 provided on one surface of the display-side housing 4. Is formed.

On the other hand, the operation-side main body 2 includes an operation-side casing 7 and an operation unit 8 provided on one surface of the operation-side casing 7. A talk 9 is formed. The operation-side casing 7 forms an exterior of the operation-side main body 2. The front-side case 7 a that constitutes the operation-side facing surface that faces the display-side main body when folded, and the operation-side facing surface face the operation-side facing surface. It consists of a rear case 7b constituting the reverse side of the main body 2. The front case 7a and the rear case 7b can be coupled to each other in the thickness direction of the operation side main body 2. The mouthpiece 9 is configured to communicate with a microphone (not shown).
In the present embodiment, the display unit 5 is a touch panel provided with a touch sensor, and an operation can be instructed by touching the screen with a finger or a stylus.

  FIG. 2 is a block diagram showing the configuration of the mobile phone shown in FIG. As shown in FIG. 2, the mobile phone includes a communication unit 21, an operation unit 22, a display unit 23, a vibrator 24, a touch sensor 25, a load detection unit 26, a sound generation unit 27, and a control unit 28.

The communication unit 21 transmits / receives various signals such as a voice signal, a control signal, and a data signal to / from an external base station through an antenna under the control of the control unit 28.
The operation unit 22 is similar to the operation unit 8 in FIG. 1 and includes various operation keys such as a power key, a numeric keypad, and various function keys. The operation unit 22 outputs user operation instructions to these operation keys to the control unit 28. .
The touch sensor 25 receives input by a finger, a stylus, or the like to the display unit 23, and is configured by a known method such as a resistance film method, a capacitance method, or an optical method. The load detection unit 26 detects a pressing load on the touch surface of the touch sensor 25, and is configured using an element that linearly reacts to a load such as a strain gauge sensor or a piezoelectric element, for example.
The display unit 23 is similar to the display unit 5 in FIG. 1 and displays various screens composed of images and characters based on signals input from the control unit 28, and is a push button switch (push button switch). An input object such as an input button can be displayed, and is configured using, for example, a liquid crystal display panel or an organic EL display panel.

The vibrator 24 is composed of a vibrator motor and an eccentric weight with a biased center of gravity attached to the shaft of the vibrator motor, and is housed in a housing portion provided inside the rear case 7b. Under the control of 28, the vibrator motor rotates to vibrate the touch sensor 25, the front case 7a, and the rear case 7b. The present embodiment is characterized in that the vibration to the touch sensor 25 by one vibration motor is different from the vibration to the housing (front case 7a and rear case 7b), and a specific configuration will be described later. To do.
With such a configuration, when an input object such as an input button such as a push button switch (push button switch) is displayed on the display unit 23 and the operator presses a position corresponding to the button with a finger, The load detection unit 26 detects a pressing load on the touch surface of the touch sensor 25 and vibrates by the vibrator 24 so that a tactile sensation can be presented to the operator.
The sound generation unit 27 is configured by a speaker, and generates a ring tone or a sound from the speaker to the outside based on a sound signal input from the control unit 28.

  3 is a diagram showing a specific configuration of the vibrator 24 of FIG. 2, FIG. 3 (a) is a top view, and FIG. 3 (b) is a side view. An eccentric weight 12 is attached to the shaft of the motor 11 so that the center of gravity is deviated from the shaft, and the holding member 14 holding the spring material 13 has the eccentric weight 12 when the motor 11 rotates. The spring member 13 is disposed at a position where the tip of the spring member 13 is hit. 3 to 9, a spring material is used, and the spring material 13 is struck by an eccentric weight 12 or a protrusion 15 described later (moved in a direction to increase the elastic force and then returned to its original state), thereby generating vibration. The case will be described.

  FIG. 4 is a schematic diagram showing a state when the vibration motor rotates forward. When the motor 11 rotates forward, if the eccentric weight 12 of the motor 11 hits the spring material 13, the spring material 13 bends with the point A as the turning point, so the distance from the bending point to the tip on the side where it hits the eccentric weight 12 is The elastic force of the spring material 13 is relatively soft (weak) and the force for bending the spring material 13 is small. Therefore, the load applied to the rotation of the motor 11 is reduced, and the motor 11 can rotate in a state close to normal vibration.

  FIG. 5 is a schematic diagram showing a state when the vibration motor is reversed. When the motor 11 rotates in the reverse direction, if the eccentric weight 12 of the motor 11 hits the spring material 13, the spring material 13 bends with the point B as a turning point, so the distance from the bending point to the tip on the side where it hits the eccentric weight 12 is short. Thus, the elastic force of the spring material 13 is relatively hard (strong), and the force for bending the spring material 13 is large. For this reason, the impact at the time of collision is transmitted to the holding member 14 holding the spring material 13, and when the holding member 14 is mounted on the casing of the touch panel, a shock wave is transmitted to the touch panel, It is transmitted to the finger as a tactile sensation when the person presses the button.

  Thus, in this embodiment, the holding member 14 is configured to hold the spring material 13 so that the bent portion (point A and point B) of the spring material 13 is different between forward rotation and reverse rotation. Features.

  At this time, an appropriate impact can be obtained by adjusting the material and thickness of the spring member 13, the length between the points AB, and the length from the point B to the point of collision.

  FIG. 6 is a schematic diagram showing an attachment state of a vibration motor in which a protrusion is provided on an end surface of an eccentric weight. A protrusion 15 is provided on the outer periphery of the eccentric weight 12 of the motor 11, and the holding member 14 that holds the spring material 13 is a position where only the protrusion 15 strikes the tip of the spring material 13 when the motor 11 rotates. Is installed.

  FIG. 7 is a schematic diagram showing a state when a vibration motor having a protrusion on the end surface of the eccentric weight is rotated forward. When the protrusion 15 collides with the spring material 13 during normal rotation of the motor 11, the spring material 13 bends at the point A, and therefore is relatively soft and bent with a light force. Moreover, after passing through the protrusion 15, the spring material 13 returns to the normal position (dotted line position in FIG. 7), so the load applied to the rotation of the motor 11 is only the position of the protrusion 15, and the motor 11 It can rotate in a state close to normal vibration.

  FIG. 8 is a schematic diagram showing a state when a vibration motor having a protrusion on the end surface of the eccentric weight is reversed. If the protrusion 15 hits the spring material 13 during the reverse rotation of the motor 11, the spring material 13 bends at the point B and becomes relatively hard and requires a large force to bend. Therefore, the impact when the bumper hits the spring member 13 is transmitted to the holding member 14 holding the spring member 13, and when the holding member 14 is mounted on the casing of the touch panel, the shock wave is transmitted to the touch panel. Thus, it is transmitted to the finger as if the operator had pressed the button. Moreover, after passing through the protrusion 15, the spring material 13 returns to the normal position (dotted line position in FIG. 8), so the load applied to the rotation of the motor 11 is only the position of the protrusion 15, and the motor 11 rotates. Extra power can be reduced.

  FIG. 9 is a schematic diagram showing an attachment state of a vibration motor in which a plurality of protrusions are provided on an end surface of an eccentric weight. By providing a plurality of protrusions 15 on the eccentric weight 12, the frequency of the impact can be changed depending on the interval between the protrusions 15, and the frequency and magnitude of the impact can be changed depending on the number of the protrusions 15.

  FIG. 10 is a schematic diagram showing an attachment state of the vibration motor when the spring material is a resin-based member. As shown in FIG. 10, the spring material 16 is made of a resin-based member, and the spring material 16 has a spring property in the D direction by making the drawing C portion into a substantially U shape with the resin-based member. By forming the impact portion 17 on the side in contact with the protrusion 15 of the spring material 16 in the R shape when the motor 11 is rotating forward, the spring material 16 when the motor 11 is rotating forward is lightly escaped when it hits the protrusion 15. The structure is such that the impact portion 17 moves in the D direction, and the impact portion 17 on the side that contacts the projection 15 of the spring material 16 when the motor 11 rotates reversely receives the force from the projection 15 more than the R-shape described above. (In this embodiment, the protrusion 15 is formed in a shape substantially parallel to the longitudinally extending portion extending from the axis center of the motor 11 when contacting the impact portion 17). Spring material 16 is protruding It is possible to strongly escape structure when you hit 15.

  While the spring material 13 shown in FIG. 3 has at least a two-piece structure, the spring material 16 made of a resin-based member can have a one-piece structure, so that the structure can be simplified.

  FIG. 11 is an image diagram when the protrusion is movable. A concave portion 18 is provided on the end surface of the eccentric weight 12 of the motor 11, and a rod-like projection 19 is accommodated in the concave portion 18 so as to be protruded by a support rod 20 at a biased position. With such a configuration, the protrusion 19 is movably attached, stored in the normal rotation, and eccentric in a state in which the protrusion 19 is in contact with the wall portion of the recess 18 (E portion in FIG. 10B described later) during the reverse rotation. By maintaining the protrusion from the weight 12, it is possible to give the same vibration as the normal vibration to the device main body without giving an impact to the spring material 13 or the spring material 16 at the time of forward rotation. Vibration for presenting tactile sensation when a button is pressed can be obtained.

  FIG. 12 is a schematic diagram showing the state of the movable protrusion when the vibration motor rotates forward and reverse. FIG. 12A is a top view, and FIG. 12B is a side view. During normal rotation of the motor 11, as shown in the left diagrams of FIGS. 12A and 12B, the protrusion 19 is housed in the recess 18 at a stage where it lightly hits the spring material 13 or the spring material 16. At the time of reverse rotation of the motor 11, as shown in the right diagrams of FIGS. 12A and 12B, the protrusion 19 protrudes from the recess 18 by centrifugal force and hits the spring material 13 or the spring material 16.

  In the present invention, the vibration motor mounted on the portable electronic device body vibrates differently between forward rotation and reverse rotation. Therefore, the vibration during forward rotation of the motor is used as vibration for vibration, and the reverse rotation of the motor is performed. By using the vibration at the time as the vibration for presenting the tactile sensation by pressing the button displayed on the touch panel, it is possible to realize the vibration for presenting the tactile sensation by pressing the button at a minimum cost.

  In addition, when the mobile electronic device is a mobile phone, even when the same motor is used as a vibration to notify an incoming call, when the incoming call is received during operation, the vibration differs during forward rotation and reverse rotation. And vibration when presenting a tactile sensation due to pressing of a button displayed on the touch panel can be discriminated.

  In addition, by holding the spring material in the casing of the touch panel, it is possible to give more shock to the touch panel and to give a more realistic tactile sensation to the operator's finger. For example, as shown in FIG. 13, a touch sensor is held on a display unit via a spring material, and an impact is applied to the touch panel by the spring material, so that a realistic tactile sensation can be given to an operator's finger. 13A and 13B show an example of a mounting structure of a portable electronic device having a touch panel. FIG. 13A is a cross-sectional view of a main part, and FIG. 13B is a plan view of the main part. The portable electronic device holds the touch sensor 30 on the display portions 36 at the four corners of the housing 35 via the spring material 32. The housing 35 is provided with an upper cover 33 so as to cover the surface area of the touch sensor 30, and an insulator 34 made of an elastic member is disposed between the upper cover 33 and the touch sensor 30. On the surface of the touch sensor 30, a strain gauge sensor 31 for detecting a load (pressing force) applied to the touch sensor 30 is provided in the vicinity of each side covered with the upper cover 33. That is, the portable electronic device shown in FIG. 13 can give a realistic tactile sensation to the operator's finger by detecting the load with the strain gauge sensor 31 and vibrating the touch surface 30a using the spring material 32. The spring material 32 may be the spring material described so far, and the holding member may be held in the casing of the touch panel together with the spring material.

Further, according to the present invention, by providing the protruding portion, interference occurs only when the protruding portion strikes the spring material, so that the load applied to the motor can be reduced.
In addition, the present invention has a structure in which the protrusion is movably attached and stored during forward rotation, so that the same vibration as normal vibration can be applied to the main body without giving an impact during vibration, and the protrusion protrudes during reverse rotation. By adopting such a structure, vibration for presenting tactile sensation of pressing a button can be obtained only during reverse rotation.

  Further, in this embodiment, the case where the spring material 13, the holding member 14, and the spring material 16 are used as the spring material has been described. However, the spring material varies in a different manner at the time of normal rotation and reverse rotation of the motor. Any configuration may be used.

DESCRIPTION OF SYMBOLS 1 Display side main body 2 Operation side main body 3 Hinge part 4 Display side housing | casing 5,23,36 Display part 6 Earpiece 7 Operation side housing | casing 7a Front case 7b Rear case 8,22 Operation part 9 Mouthpiece 11 Motor 12 Eccentricity Weight 13, 16, 32 Spring material 14 Holding member 15, 19 Protruding part 17 Colliding part 18 Recessed part 20 Supporting rod 21 Communication part 24 Vibrator 25, 30 Touch sensor 26 Load detecting part 27 Sound generating part 28 Control part 30a Touch surface 31 Strain gauge Sensor 33 Upper cover 34 Insulator 35 Case

Claims (5)

A motor capable of forward and reverse rotation with an eccentric weight attached to a rotating shaft and a springy member that varies with the eccentric weight, and vibrates the portable electronic device main body due to the fluctuation of the springy member In the portable electronic device, the spring-like member varies the vibration to the portable electronic device by changing differently between the normal rotation and the reverse rotation of the motor,
When the spring member is bent by the eccentric weight so that the spring member is bent, the eccentric weight hits the spring member when the motor rotates forward and backward. The portable electronic device is characterized in that a bent portion of the springy member is made different between the normal rotation and the reverse rotation. A motor capable of forward and reverse rotation with an eccentric weight attached to a rotating shaft and a springy member that varies with the eccentric weight, and vibrates the portable electronic device main body due to the fluctuation of the springy member In the portable electronic device, the spring-like member varies the vibration to the portable electronic device by changing differently between the normal rotation and the reverse rotation of the motor,
The spring member is arranged so that the eccentric weight hits, and when the motor hits the spring member when the motor is rotating forward and reverse, the spring is rotated during the forward rotation and reverse rotation. A portable electronic device characterized in that the shape of a portion to be struck by a characteristic member is made different. A motor capable of forward and reverse rotation with an eccentric weight attached to a rotating shaft and a springy member that varies with the eccentric weight, and vibrates the portable electronic device main body due to the fluctuation of the springy member In the portable electronic device, the spring-like member varies the vibration to the portable electronic device by changing differently between the normal rotation and the reverse rotation of the motor,
A portable electronic device, wherein a protrusion is provided on the eccentric weight, and the protrusion is arranged to strike the springy member. The portable electronic device according to claim 3 , wherein a plurality of protrusions are provided on the eccentric weight. The protrusion is housed in a recessed portion provided in the eccentric weight so as to be able to project, and is housed in the recessed portion during forward rotation or reverse rotation of the motor, and protrudes from the recessed portion during reverse rotation or forward rotation. The portable electronic device according to claim 3 or 4 , characterized in that

Images