JP2004030475A - Personal digital assistance - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily incorporate a vibration motor without making a personal digital assistance large-sized to solve the problem that a personal digital assistance has a structure of indicating the scheduled time of a meeting or a lapse of a set time by vibration, effect can not be obtained without using a vibration motor large enough corresponding to equipment in use and the size of the equipment is affected or vibration can not be sufficiently transmitted to the outside depending on a fitting place. <P>SOLUTION: A personal digital assistance having a display part which is nearly as large as its housing has a vibration motor arranged in the narrow area surrounded with a board extension part formed by extending the circuit board on one specified side of the display part, a cover on the front side of the housing, and the one specified side of the display part, and consequently vibration generated by the vibration motor can be transmitted to a hand through the board without making the equipment thicker nor small-sized. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a personal digital assistant having a size similar to that of a notebook, and more particularly to a personal digital assistant having a vibration motor for notifying the arrival of a scheduled time by vibration.
[0002]
[Prior art]
At present, personal digital assistants (PDAs) have the same size and weight as a personal organizer, but have a function to view and create various files such as address books, schedule tables, work-related memos and files, etc. Many of them have many functions such as a function of browsing video and image files, a music player function, and a communication function of browsing e-mail and data on the Internet in cooperation with a mobile phone. These portable information terminals are required to be small and thin so that they can be carried around in a breast pocket or handbag at all times, and are equipped with a large-capacity battery so that they can be used for a certain period of time while on the go. It is desired.
[0003]
Further, such portable information terminals have been developed which have a function of notifying by a vibration that a scheduled time of a meeting or the like or a set time has elapsed. That is, if the notification is made by vibration, no noise is generated due to substantially no sound, and the scheduled time and the like can be reliably notified even in a loud place such as a street or a construction site. However, a vibration motor for causing such vibrations has no effect unless it has a certain external size corresponding to a portable information terminal. For this reason, depending on the mounting location, the size of the device may be affected, and depending on the mounting method, there may be a problem that vibration is not transmitted well to the outside.
[0004]
Therefore, for example, Japanese Utility Model Laid-Open No. 4-112481 discloses a pen-type liquid crystal display electronic device in which a vibrator is attached to a housing-side substrate of a double substrate provided behind a liquid crystal, and the device is inserted in a pocket or the like. A structure is shown in which vibration is reliably transmitted. Japanese Patent Application Laid-Open No. H10-148690 discloses that a liquid crystal cell holding frame has a function of holding an upper axis of a vibration motor in a pager (pager) or a wristwatch having a vibration motor and a liquid crystal display portion, and the space is reduced to a narrow space. 1 shows a device for reducing the number of parts and the arrangement of the vibration motor. Further, in Japanese Patent Application Laid-Open No. 10-319146, in a wristwatch having a liquid crystal display portion and a vibration motor, a notch for accommodating the vibration motor in a housing for supporting the liquid crystal while fixing the vibration motor to a back cover is provided. Shown is a structure capable of accommodating a vibration motor.
[0005]
[Problems to be solved by the invention]
However, all of the devices shown in these prior arts use a liquid crystal display device, a circuit board, a battery, and the like, such as a pen-type liquid crystal display electronic device, a pager (pager), a liquid crystal clock, and a portable information terminal. This is a method of mounting a vibration motor in a device that is considerably smaller than that of the conventional device. It has a complicated structure. The device disclosed in JP-A-10-148690 also has a complicated and difficult-to-assemble structure in which the liquid crystal cell holding frame has a function of holding the upper shaft of the vibration motor. The device disclosed in JP-A-319146 also has a large number of components and requires a complicated assembly procedure in which a notch for accommodating a vibration motor is provided in a housing for supporting a liquid crystal, and the vibration motor is fixed to a back cover with a fixing member. It has a structure.
[0006]
In view of the above-mentioned circumstances, the present invention can easily and easily incorporate a vibration motor with a small number of parts without increasing the thickness of the device, and can fix the vibration motor in the device case without rattling, thereby reducing the vibration of the vibration motor. It is an object to provide a portable information terminal capable of reliably transmitting information to a case.
[0007]
[Means for Solving the Problems]
Therefore, in the present invention, as described in claim 1,
In a portable information terminal including a display unit having substantially the same size as the front surface of the housing,
A circuit board on which electronic components are mounted is disposed on a back surface of the display section, and an extended board section formed by extending the circuit board on a predetermined side of the display section is provided. A vibration motor is disposed in a narrow space surrounded by the cover on the side, the extending substrate portion, and the predetermined side of the display portion.
[0008]
As described above, in the portable information terminal in which the display unit is substantially the same size as the housing, the thickness of the device is increased by arranging the vibration motor so as to overlap the display unit. By arranging the vibration motor in a narrow space surrounded by a board extending portion formed by extending the circuit board, a cover on the front side of the housing, and a predetermined side of the display portion, the thickness of the device is increased. It is possible to provide a portable information terminal provided with a vibration motor at an effective position without increasing the size of the device and without increasing the size of the device.
[0009]
And the invention described in claim 2 is:
The vibration motor is fixed to a holding portion erected on the front side cover and a surface of the extension board portion, thereby transmitting vibration to a housing rear side via the circuit board. I do.
[0010]
By fixing the vibration motor with the holding portion erected on the front cover and the surface of the extension board portion, the vibration of the vibration motor is reliably transmitted to the housing and the circuit board, and furthermore, The vibrations can be transmitted to the skin from the hand holding the portable information terminal, the stored pocket, and the like. Also, when assembling the vibration motor, the vibration motor is simply inserted into the holding portion erected on the housing and fixed by the extending substrate portion by incorporating the circuit board and the liquid crystal display portion, so that the number of parts is small, Assembly can be easily performed, and a portable information terminal which is cost-effective can be provided.
[0011]
The invention described in claim 3 is:
A support frame provided in the vicinity of a side of the display unit facing the predetermined side, and a support frame provided on the front side cover corresponding to each of two sides adjacent to the predetermined side of the display unit. The display device is provided with two provided support portions, and the display portion is positioned by the support frame and the two support portions.
[0012]
In this way, the display section is positioned by the support frame provided on the side opposite to the predetermined side of the display section and the support section erected on the front cover corresponding to each of the two sides adjacent to this side. Thereby, the display unit is securely held, and the vibration by the vibration motor disposed in the narrow space is transmitted to the circuit board disposed on the rear surface of the display unit reliably, whereby the assembly is easy and the vibration is transmitted reliably. A portable information terminal can be provided.
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be illustratively described in detail with reference to the drawings. However, the dimensions, materials, shapes, relative arrangements, and the like of the components described in this embodiment are not intended to limit the scope of the present invention to them unless otherwise specified, and are merely mere descriptions. This is just an example.
[0014]
FIG. 1 is a schematic perspective view of a portable information terminal showing one embodiment of the present invention, FIG. 2 is a perspective view of the same viewed from the back, and FIG. 3 is a view of each unit in the portable information terminal showing one embodiment of the present invention. FIG. 4 is an assembled view, FIG. 4 is a view of the upper cover of the portable information terminal according to one embodiment of the present invention viewed from the back, and FIG. 5 is a combination of a liquid crystal display unit and a circuit board in the portable information terminal according to one embodiment of the present invention. FIG. 6 is a perspective view (A) of the vibration motor and a view (B) viewed from the bottom surface of the vibration motor.
[0015]
In the figure, 1 is a portable information terminal according to the present invention, 2 is a liquid crystal display, 3 is a power button, 4 is a return button for returning the selection instruction result to the previous state, and 5 is displayed on the liquid crystal display 2. Buttons for selecting items or functions, 6 is a plastic side cover for each of these buttons, 7 is a housing projection provided on the side cover for preventing malfunction of the selection button 5, 8, 9, 10, and 11 are operations for each. Button operation direction, 12 is an upper case made of aluminum or the like, 13 is a lower case also made of aluminum or the like, 14 is a plastic upper cover, 15 is a plastic lower cover, and 16 is a compact flash (registered trademark). ), A communication terminal such as a card-type modem, or a slot for storing various card-type devices such as a micro hard disk, and 17 is a styler for operation. An insertion port for a pen or the like, 18 is a scattered projection or recess, 19 is a circuit board, 20 is a battery, 21 is a vibration motor, of which the upper case 12, the lower case 13, the upper cover 14, and the lower cover 15 are portable. Construct a housing of the information terminal. 4, reference numerals 40 and 41 denote holding parts of the vibration motor 21, 43 and 44 denote fixing holes of the liquid crystal display part 2, 45 and 46 denote support parts of the liquid crystal display part 2, and 50 and 51 denote liquid crystal display parts in FIG. 2, 52 and 53 are sides of the liquid crystal display unit 2, 54 is a lower side of the liquid crystal display unit 2, 60 is a vibration motor main body in FIG. 6, 61 is a rotation axis of the vibration motor, and 62 is a vibration motor. The weight 63 is a fixing projection for fixing the vibration motor to the holding portions 40 and 41 of the upper cover 14.
[0016]
As shown in FIG. 1, a portable information terminal 1 according to the present invention has a liquid crystal display unit 2 having the same size as a front surface of a casing of about 3.5 to 4 inches as shown in FIG. The upper case 12, the lower case 13, the lower cover 15, which protects the stored liquid crystal display unit 2, the circuit board 19, the battery 20, and the like, are raised with respect to the other side surface, and when the portable information terminal 1 is held, A side cover 6 for recognizing that it is the side on which the operation buttons are arranged, and an upper cover 14 having scattered projections or recesses on the side opposite to the side cover 6 as shown in FIG. For example, when held with the left hand, the presence of the scattered projections or recesses 18 of the upper cover 14 shown in FIG. 2 and the presence of the side cover 6 raised to the other side surface shown in FIG. Can be wrong upside down The liquid crystal display unit 2 can be held in the above without. In addition, when held, the thumb can be easily positioned at the operation buttons 3, 4, and 5, so that the portable information terminal 1 according to the present invention can be taken out of the handbag or pocket during a phone call or the like. The content can be browsed with only one hand without making any mistakes.
[0017]
In the portable information terminal 1 of the present invention, as shown in the assembly diagram of FIG. 3, a circuit board 19 is arranged on the back of the liquid crystal display unit 2 and the liquid crystal display unit 2 is made of a plastic And a circuit board 19 side covered with a plastic lower cover 15 having a battery housing part for the battery 20, and further covered with aluminum. It is configured to be covered by a lower case 13 formed by the above method.
[0018]
As shown in the perspective view of FIG. 6A, the vibration motor 21 has a weight 62 attached to a rotating shaft 61 of a motor main body 60, and the vibration motor 21 of FIG. As shown, a fixing projection 63 is provided slightly projecting from the motor main body 60. As shown in FIG. 4, the upper cover 14 includes holding portions 40 and 41 having concave portions for receiving and holding the fixing protrusions 63 of the vibration motor 21, and the upper cover 14. A support portion 45 and a support portion 46 are provided to support a united liquid crystal display unit 2 and a circuit board 19 incorporated in the vibration motor 21. The vibration motor 21 is mounted on the holding portions 40 and 41 of the vibration motor 21 as shown in FIG. It can be inserted and held from the direction in which the bottom surface shown in B) can be seen.
[0019]
Then, when the liquid crystal display unit 2 incorporated in the upper cover 14 and the circuit board 19 are combined, the circuit board 19 is larger than the liquid crystal display unit 2 as shown in FIG. The supporting frames 50 and 51 are provided at the same height as the circuit board 19 and fixed to the housing with screws, and the lower side 54 of the liquid crystal display unit 2 extends the circuit board 19 provided on the back surface. ing. With such a configuration, a narrow space is formed between the liquid crystal display unit 2, the upper cover 14, and the circuit board 19. Then, as shown in FIG. 4, the support frames 50 and 51 of the liquid crystal display unit 2 are fixed to holes 43 and 44 (FIG. 4) provided in the upper wall 42 of the upper cover 14 using screws or the like. The right side 52 of the liquid crystal display unit 2 is supported by a support part 45 provided on the left side in FIG. 4, and the left side 53 is supported by a support part 46 provided on the right side in FIG.
[0020]
Therefore, the vibration motor 21 is formed by extending the circuit board 19 when the liquid crystal display unit 2 and the circuit board 19 shown in FIG. 5 are combined with the upper cover 14 shown in FIG. It is arranged at a position indicated by a dotted line 21 in FIG. 5 which is a narrow space, and a predetermined surface of the circuit board 19 is fixed in contact with the vibration motor 21. That is, as shown in the assembly diagram of FIG. 3, the vibration motor 21 is disposed on the lower right side of the upper cover 14, and as shown in FIG. 1, operation buttons are disposed on the left side of the vibration motor 21. Therefore, the vibration generated by the vibration motor 21 is transmitted to the upper cover 14 and also to the lower cover 15 and the lower case 13 via the circuit board 19, for example, when the portable information terminal is held with the left hand. The vibration is reliably transmitted to the palm through the lower cover 15 and the lower case 13. Further, when the portable information terminal is held by the left hand, the vibration motor 21 is located near the base of the little finger of the left hand, so that the vibration can be more reliably sensed with the palm. ing.
[0021]
As described above, the portable information terminal according to the present invention can be viewed with only one hand without mistaking the front and back, even if it is taken out of the handbag or pocket during a phone call. Even if the scheduled time of a meeting or the like or the elapse of a set time is notified by vibration during the operation, the vibration is reliably transmitted to the hand, and the user can be reliably notified.
[0022]
In the above description, the storage portion of the vibration motor 21 is arranged on the lower right side of the upper cover 14 as shown in FIG. 3, but it may be arranged on the side where the left operation buttons are arranged. Is self-evident.
[0023]
As described above, in a portable information terminal in which the display unit is substantially the same size as the housing, the thickness of the device is increased by arranging the vibration motor so as to overlap with the display unit. By arranging the vibration motor in a narrow space surrounded by a board extending portion formed by extending the circuit board on one side, a cover on the front side of the housing, and a predetermined side of the display unit, A portable information terminal provided with a vibration motor at an effective position without increasing the thickness and without increasing the size of the device can be provided.
[0024]
By fixing the vibration motor with the holding portion provided on the front cover and the surface of the extending substrate portion, the vibration of the vibration motor is reliably transmitted to the housing and the circuit board. Since the vibration is transmitted to the hand-held portion on the back of the body, vibration can be reliably transmitted to the skin from the hand holding the portable information terminal or the stored pocket. Also, when assembling the vibration motor, the vibration motor is simply inserted into the holding portion erected on the housing and fixed by the extended substrate portion by incorporating the circuit board and the liquid crystal display portion, so that the number of parts is small, Assembly can be easily performed, and a portable information terminal which is cost-effective can be provided.
[0025]
Further, the display unit includes a support frame provided in the vicinity of a side opposite to a predetermined side of the display unit, and two support units erected on a front cover corresponding to each of two sides adjacent to this side. By the positioning, the display unit is securely held, and the vibration by the vibration motor arranged in the narrow area is transmitted to the circuit board arranged on the back surface of the display unit with certainty. A portable information terminal to be conveyed can be provided.
[0026]
【The invention's effect】
As described above, according to the present invention, the vibration motor can be easily and easily incorporated in the housing without increasing the thickness of the device with a small number of parts without increasing the thickness of the device. The vibration is reliably transmitted from the housing to the hand or the like, and the portable information terminal having the vibration motor can be thinned and provided at low cost.
[Brief description of the drawings]
FIG. 1 is a schematic perspective view of a portable information terminal showing an embodiment of the present invention.
FIG. 2 is a rear perspective view of the portable information terminal according to the embodiment of the present invention.
FIG. 3 is an assembly diagram of each unit in the portable information terminal showing one embodiment of the present invention.
FIG. 4 is a view of the upper cover of the portable information terminal according to the embodiment of the present invention as viewed from the back.
FIG. 5 is a view of the liquid crystal display unit and the circuit board in the portable information terminal according to the embodiment of the present invention, as viewed from the liquid crystal display unit side.
6A is a perspective view of the vibration motor, and FIG.
[Explanation of symbols]
2 Liquid crystal display section 19 Circuit board 21 Vibration motor 50, 51 Liquid crystal display section support frames 52, 53 Side 54 of liquid crystal display section Lower side of liquid crystal display section

Claims (3)

In a portable information terminal including a display unit having substantially the same size as the front surface of the housing,
A circuit board on which electronic components are mounted is disposed on a back surface of the display section, and an extended board section formed by extending the circuit board on a predetermined side of the display section is provided. A portable information terminal characterized in that a vibration motor is arranged in a narrow space surrounded by a cover on the side, the extending substrate portion, and the predetermined side of the display portion. The vibration motor is fixed to a holding portion provided upright on the cover on the front side and a surface of the extending substrate portion, thereby transmitting vibration to the rear surface of the housing via the circuit board. The mobile information terminal according to claim 1. A support frame provided in the vicinity of a side of the display unit facing the predetermined side, and a support frame provided on the front side cover corresponding to each of two sides adjacent to the predetermined side of the display unit. 3. The portable information terminal according to claim 1, further comprising two support units provided, wherein the display unit is positioned by the support frame and the two support units. 4.

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