JP2006065739A - Information processing equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve functionality about a hinge body as the supporting point of rotation. <P>SOLUTION: This information processing equipment is provided with a hinge body 10 by which a display device 3 is supported so as to be rotated to a device main body 2, and by which a keyboard device 4 is supported so as to be rotated to the display device 3. The hinge body is provided with a hinge shaft 12 being the center of rotation, a mounting part 13 for a main body mounted on the device main body, a mounting part 15 for a display mounted on the display device, a mounting part 14 for a keyboard mounted on the keyboard device, a first reflection generating part for applying a friction force when the mounting part for the display is rotated to the mounting part for the main body and a second friction generating part for applying a friction force when the mounting part for the keyboard is rotated to the mounting part for the display. One friction generating part is configured so that the friction force can be generated between the peripheral face of the hinge shaft and the mounting part for the main body or the mounting part for the display, and the other friction generating part is configured so that the friction force can be generated in the axial direction of the hinge axis. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to the technical field of information processing equipment. More specifically, the present invention relates to a technical field for improving functionality related to a hinge body serving as a rotation fulcrum in an information processing apparatus having a display device.

  Information processing equipment includes, for example, a personal computer including a keyboard device provided with a plurality of operation keys, a display device having a display screen, and a device body having various circuits such as a drive circuit and a control circuit inside. .

  As such a conventional information processing device, there is one in which a display device and a keyboard device are rotatable via a hinge shaft (for example, see Patent Document 1).

  In the information processing apparatus described in Patent Document 1, the apparatus main body and the display device are integrated, and can be rotated to a base portion placed on a desk or the like via a first hinge shaft. The device is rotatable with respect to the display device via a second hinge shaft.

  The keyboard device can be rotated between a closed position closed with respect to the display device and an open position opened with respect to the display device, but is rotated from the closed position toward the open position. It is rotated by its own weight. If the keyboard device is rotated at high speed by its own weight at this time, a large impact is generated at the moment when the keyboard device reaches the open position and touches the desk or the like. A damper, for example, an oil damper, for reducing the rotation speed and suppressing the impact is incorporated.

JP 2003-256078 A

  However, in the information processing apparatus described above, the display device and the keyboard device integrated with the device main body are separately supported by the two hinge shafts, and the number of parts is increased due to the presence of a plurality of hinge shafts. However, there is a problem in that the arrangement space is increased, resulting in an increase in manufacturing cost and hindering downsizing.

  Further, in order to solve the above-described problem, it is desirable to manage the torque independently for each hinge shaft serving as each rotation fulcrum.

  On the other hand, it is desirable for the damper incorporated in the information processing device to sufficiently perform its function, and when the keyboard device is rotated relative to the display device, the keyboard device is rotated at a desired speed. .

  FIG. 21 is a graph showing the hinge torque when the keyboard device is rotated with respect to the display device in the conventional information processing apparatus, and FIG. 22 is a graph showing the damper torque. In general, the damper torque is a viscous torque and depends on the rotational speed, whereas the hinge torque is independent of the rotational speed and the dynamic friction is constant.

  In the process in which the keyboard device is rotated from the closed position to the open position, the hinge torque increases from Ta to Tb immediately after the rotation starts and then decreases to Tc to a constant value. The damper torque gradually increases from the start of rotation to a predetermined angle, becomes Td, and becomes a constant value.

  FIG. 23 shows the total torque generated in the process in which the keyboard device is rotated from the closed position to the open position. This total torque is expressed as the sum of the hinge torque and the damper torque. The total torque increases from Ta to Te immediately after the start of rotation, then decreases to Tf, further increases to Tg, and becomes a constant value. Tg is the sum of a constant value Tc of the hinge torque and a constant value Td of the damper torque. In FIG. 23, the hinge torque is also shown as a comparison target with the total torque.

  When the keyboard device is rotated to a predetermined angle (angle Sa shown in FIG. 23) in the process in which the keyboard device reaches the open position, the hinge torque constant value Tc and the damper torque constant value Td are thereafter set. The keyboard device is rotated to the open position in the state of Tg which is the sum.

  However, in the conventional information processing device, when the keyboard device is rotated in the state of Tg, the ratio of the hinge torque Tc is large, and the effect of the damper is not sufficiently exhibited, and the keyboard is not fully displayed. There is a possibility that the rotation speed of the device does not decrease sufficiently, or that the keyboard device stops in the middle of rotation due to a large hinge torque.

  Therefore, there is a problem that the impact generated at the moment when the keyboard device rotated by its own weight reaches the open position and contacts the desk or the like is not sufficiently reduced, or the keyboard device is not rotated by its own weight to the open position. obtain.

  Accordingly, an object of the information processing apparatus of the present invention is to overcome the above-described problems and to improve the functionality related to the hinge body that is the pivot point.

  In order to solve the above-described problems, the information processing apparatus of the present invention is provided with a hinge body that rotatably supports the display device with respect to the apparatus body and supports the keyboard device with respect to the display device. The hinge body has a hinge shaft that serves as a pivot center for the display device and a pivot center for the display device of the keyboard device, and a body mounting portion that is attached to the device body and provided on the hinge shaft. And a display mounting portion that is attached to the display device and is provided on the hinge shaft and is rotatable with respect to the body mounting portion with the hinge shaft as a fulcrum, and the hinge that is attached to the keyboard device and is provided on the hinge shaft. A keyboard mounting portion that is rotatable with respect to the display mounting portion about an axis; A first friction generating portion for applying a frictional force when the display mounting portion is rotated with respect to the main body mounting portion; and a friction when the keyboard mounting portion is rotated with respect to the display mounting portion. A second friction generating portion that applies force, and one friction generating portion is configured to generate a frictional force between the peripheral surface of the hinge shaft and the main body mounting portion or the display mounting portion, As the other friction generating part, there are provided a rotating part that is rotated in accordance with the rotation of the keyboard mounting part and a fixing part that is not rotatable in the direction around the axis with respect to the hinge shaft. It is configured to generate a frictional force by contacting in the axial direction of the hinge shaft.

  Therefore, in the information processing apparatus of the present invention, two independent frictions are generated in the same hinge body.

  In another information processing apparatus according to the present invention, in order to solve the above-described problem, the keyboard device is interposed between a closed position where the operation key is closed by the display device and an open position where the operation key is opened via a hinge body. An oil damper is provided that is rotatable and provides a resistance against rotational force when the keyboard device is rotated with respect to the display device and reduces the rotation speed. The frictional force generated in the hinge body is made substantially zero at a predetermined position while the keyboard device is being rotated from the closed position to the open position.

  Therefore, in the information processing apparatus according to the present invention, when the keyboard device is opened, a rotating state with a small influence of the hinge torque can be obtained.

  The information processing apparatus according to the present invention includes an information processing device including a display device that displays an image on a display screen, a keyboard device for performing a predetermined operation, and an apparatus main body that performs processing according to the predetermined operation on the keyboard device. An apparatus, comprising: a hinge body that rotatably supports the display device relative to the apparatus body and supports the keyboard device rotatably relative to the display device, the hinge body being an apparatus of the display device A hinge shaft that is a rotation center with respect to the main body and a rotation center with respect to the display device of the keyboard device, a main body mounting portion that is attached to the device main body and is provided on the hinge shaft, and a hinge that is attached to the display device and is hinged Display provided on the shaft and rotatable with respect to the mounting portion for the main body using the hinge shaft as a fulcrum An attachment portion, a keyboard attachment portion that is attached to the keyboard device and is provided on the hinge shaft and is rotatable with respect to the display attachment portion with the hinge shaft as a fulcrum, and the display attachment portion to the body attachment portion A first friction generating portion that applies a frictional force when rotated relative to the display, and a second friction generating portion that applies a frictional force when the keyboard mounting portion is rotated relative to the display mounting portion. One of the friction generating portions is configured to generate a frictional force between the peripheral surface of the hinge shaft and the mounting portion for the main body or the mounting portion for the display, and the mounting portion for the keyboard as the other friction generating portion. Provided with a rotating portion that is rotated with rotation and a fixed portion that is not rotatable in the direction of the axis with respect to the hinge shaft, and the rotating portion and the fixed portion are contacted in the axial direction of the hinge shaft It was characterized by being configured to generate a frictional force.

  Therefore, by providing two friction generating units, independent torque management can be performed, and torque management can be facilitated.

  In addition, since the two friction generating portions are configured as one hinge body, the number of parts can be reduced and the arrangement space can be reduced, and the manufacturing cost of the information processing equipment can be reduced. Miniaturization can be achieved.

  Another information processing apparatus according to the present invention includes a display device that displays an image on a display screen and a keyboard device having a plurality of operation keys, and the keyboard device is rotatably supported by the display device via a hinge body. An information processing device, wherein the keyboard device is rotatable via a hinge body between a closed position where the operation key is closed by the display device and an open position where the operation key is opened. An oil damper is provided that provides a resistance against rotational force when rotated with respect to the keyboard and reduces the rotation speed, and the keyboard generates frictional force generated in the hinge body as the keyboard device rotates relative to the display device. The device is set to be substantially zero at a predetermined position while being rotated from the closed position to the open position. To.

  Therefore, since the torque due to the oil damper accounts for a large proportion of the torque generated when the keyboard device is rotated relative to the display device, the torque management during the rotation of the keyboard device is easy, and the effect of the oil damper By sufficiently exhibiting the above, it is possible to reduce the rotation speed of the keyboard device with respect to the display device, and to prevent the occurrence of problems such as stopping during the rotation of the keyboard device.

  In addition, since the frictional force generated in the hinge body at a predetermined position during the rotation of the keyboard device from the closed position to the open position is substantially zero, the maximum value of the torque generated when the display device is rotated And the difference between the minimum values becomes large, and it is possible to give a large click feeling to the user when the display device is rotated, thereby improving the usability of the information processing apparatus.

  The information processing apparatus of the present invention will be described below with reference to the accompanying drawings. In the best mode described below, the information processing apparatus of the present invention is applied to a personal computer. The scope of application of the present invention is not limited to a personal computer. The information processing apparatus of the present invention can be applied to various information processing apparatuses such as PDAs (Personal Digital Assistants), network terminals, portable information terminals, and workstations. Can be applied.

  An information processing device (personal computer) 1 includes an apparatus body 2 having various circuits such as a drive circuit and a control circuit, a display device 3 for displaying images, and a keyboard device 4 for performing various operations. (See FIG. 1 and FIG. 2).

  The apparatus main body 2 is formed by integrally forming a stand portion 5 and a main body portion 6 that are placed on a placement surface 100 such as a desk. A connector is provided. In the state where the main body 6 is mounted on the mounting surface 100, the front surface 6a is inclined to the upper side from the horizontal direction (see FIG. 2).

  A connection hole 6b is formed at the lower end of the front surface 6a of the main body 6 (see FIG. 3). The connection hole 6b is for electrically and mechanically connecting the display device 3 or the keyboard device 4 to the device body 2. A part of the connection hole 6 b is closed by the cover 7.

  The display device 3 is rotatably supported by the device body 2 via the hinge portion 8 with the lower end portion as a fulcrum (see FIGS. 1 and 2). The display device 3 is formed in a flat and substantially rectangular shape, and includes a panel 9 and a display screen 3 a provided on the panel 9. On the back surface 9 a of the panel 9, that is, the surface facing the apparatus main body 2, a contact protrusion 9 b that protrudes toward the apparatus main body 2 is provided (see FIGS. 2 and 3).

  The panel 9 includes a front panel portion 9c and a rear panel portion 9d that are coupled to each other by screws 9e, 9e,... (See FIG. 3). Screws 9e, 9e,... Are attached to the rear panel portion 9d side.

  An arrangement notch 3b is formed at the lower end portion of the display device 3 except for the left and right end portions thereof (see FIG. 3).

  The display device 3 is rotatable to the device main body 2 side to a position where the abutment protrusion 9b contacts the device main body 2 (see FIG. 2). The position of the display device 3 is the first rotation position, and the rotation end in the opposite direction is the second rotation position.

  In the information processing apparatus 1, two modes, that is, a use mode and a maintenance mode, in which the rotatable angle of the display device 3 with respect to the device main body 2 are different, are formed. In the state where the mounting surface 100 is horizontal, if the vertical surface with respect to the mounting surface 100 is 0 ° and the apparatus main body 2 side is a plus side angle, as shown in FIG. The rotation angle in the maintenance mode is, for example, −110 ° to −3 °. Therefore, the position of the rotation angle 25 ° is the first rotation position of the display device 3, the position of the rotation angle −3 ° is the second rotation position of the display device 3, and the rotation angle −110. The position of ° is the third rotation position of the display device 3.

  The keyboard device 4 is rotatably supported by the display device 3 via the hinge portion 8 with its rear end as a fulcrum. Accordingly, the hinge portion 8 serves as a pivot point for the display device 3 relative to the device body 2 and also serves as a pivot point for the keyboard device 4 relative to the display device 3, so that the keyboard device 4 can pivot relative to the device body 3. Is done.

  The keyboard device 4 is formed in a flat, horizontally long, substantially rectangular shape, and has a width that is substantially the same as the width of the display device 3. The keyboard device 4 has a plurality of operation keys 4a, 4a,..., And contact prevention protrusions 4b on the left and right ends of the same surface as the operation keys 4a, 4a,. 4b are provided (see FIG. 1). As shown in FIG. 2, the contact prevention protrusions 4 b and 4 b are located between the operation keys 4 a, 4 a,... And the display device 3 when the keyboard device 4 is positioned facing the display device 3. Have a function to prevent unnecessary operations on the operation keys 4a, 4a,.

  The keyboard device 4 has a closed position where the operation keys 4a, 4a,... Are closed by the display device 3 (see FIGS. 4 and 5) and an open position where the operation keys 4a, 4a,. 6 and 7).

  The rear end portion of the keyboard device 4 is provided with cover portions 4c and 4c that are spaced apart from each other and protrude upward (see FIGS. 1 and 3).

  The hinge portion 8 includes a hinge body 10 and a support body 11 (see FIG. 8).

  The hinge body 10 includes a hinge shaft 12, a main body mounting portion 13, and a keyboard mounting portion 14 (see FIG. 8).

  The hinge shaft 12 is formed to be long from side to side, and includes a display mounting portion 15, a positioning portion 16, a rotation preventing shaft portion 17, and a support shaft portion 18 provided in this order from the left side.

  The display mounting portion 15 is formed with flat surfaces opposite to each other, and the display mounting portion 15 is formed with mounting screw holes 15a, 15a, 15a penetrating between the respective planes spaced apart from each other on the left and right. Yes. The positioning part 16 is formed in a flat columnar shape. The anti-rotation shaft portion 17 is formed with a flat surface opposite to each other, and the support shaft portion 18 is formed in a round shaft shape.

  The main body attachment portion 13 is formed by coupling an attachment portion 19 and a support portion 20.

  The mounting portion 19 is a pair of arm portions 21, 21 that are positioned to face each other in the left-right direction, a connecting portion 22 that connects the arm portions 21, 21, and an mounting portion that is positioned between one end portions of the arm portions 21, 21. It consists of one piece 23.

  The arm portions 21 and 21 are formed to extend in the front-rear direction, and shaft support holes 21a and 21a are formed at the front end portions, respectively. The arm portion 21 located on the left side is provided with a restricting portion 21b protruding leftward. The connecting portion 22 is formed with mounting screw holes 22a and 22a spaced apart from each other on the left and right, and the mounting piece portion 23 is formed with mounting holes 23a and 23a.

  The support portion 20 includes an attached piece portion 24 and a bearing portion 25 protruding forward from the attached piece portion 24. Screw mounting holes 24a and 24a are formed in the attached piece portion 24 so as to be separated from each other in the left and right direction.

  The support piece 20 is attached to the connecting portion 22 of the attachment portion 19 with the attached piece portion 24. The attachment piece portion 24 is attached to the connecting portion 22 by attaching the attachment screws 26 and 26 inserted through the screw insertion holes 24a and 24a of the attachment piece portion 24 into the attachment screw holes 22a and 22a of the connection portion 22, respectively. Is done.

  The keyboard mounting portion 14 includes a mounting surface portion 27, a mounting portion 28 protruding in the orthogonal direction from the rear edge of the mounting surface portion 27, and a pair of protrusions protruding in the orthogonal direction from the mounting surface portion 27 and facing each other in the left-right direction. Support piece portions 29, 29.

  Insertion holes 27 a, 27 a, 27 a are formed in the attachment surface portion 27 so as to be separated from each other in the left-right direction. A screw hole 28 a is formed in the attachment portion 28. The support pieces 29 and 29 are respectively formed with supported holes 29a and 29a at the distal end portions thereof, and engagement notches 29b and 29b are formed at the outer edges of the support piece portions 29 located on the right side.

  A first cam member 30 and a second cam member 31 are supported on the hinge shaft 12. The outer shapes of the first cam member 30 and the second cam member 31 are formed in a circular shape, and insertion holes 30a and 31a penetrating in the left-right direction are formed in the center portions. The insertion hole 30a is formed in the same shape as the cross-sectional shape of the detent shaft portion 17 of the hinge shaft 12, and the insertion hole 31a is formed in a round hole shape.

  The first cam member 30 has a cam surface 32 on the right side. On the cam surface 32, a cam concave surface 32a, an inclined surface 32b, a cam convex surface 32c, and an inclined surface 32b are successively formed twice in the circumferential direction, and the cam concave surfaces 32a and 32a are located on the left side of the cam convex surfaces 32c and 32c. The inclined surfaces 32b, 32b,... Are inclined so that the cam concave surfaces 32a, 32a and the cam convex surfaces 32c, 32c are continuous.

  The left surface of the second cam member 31 is a cam surface 33. On the cam surface 33, a cam concave surface 33a, an inclined surface 33b, a cam convex surface 33c, and an inclined surface 33b are successively formed twice in the circumferential direction, and the cam concave surfaces 33a and 33a are located on the right side of the cam convex surfaces 33c and 33c. The inclined surfaces 33b, 33b,... Are inclined so that the cam concave surfaces 33a, 33a and the cam convex surfaces 33c, 33c are continuous. Engagement protrusions 31 b and 31 b protruding rightward are provided on the right side surface of the second cam member 31.

  A mode forming lever 34 is supported on the hinge shaft 12. The mode forming lever 34 includes a supported piece portion 34a and a regulating protrusion 34b protruding from the supported piece portion 34a, and a supported hole 34c is formed in the supported piece portion 34a. The supported hole 34 c is formed in the same shape as the cross-sectional shape of the rotation preventing shaft portion 17 of the hinge shaft 12.

  The hinge body 10 is assembled as follows.

  The support shaft portion 18 and the detent shaft portion 17 of the hinge shaft 12 are inserted into the supported holes 29a and 29a of the keyboard attachment portion 14 from the left side, and the positioning portion 16 of the hinge shaft 12 is positioned on the left side of the keyboard attachment portion 14. The support piece portion 29 is in contact with the support piece portion 29. At this time, the rotation preventing shaft portion 17 is inserted through the compression coil spring 35, the insertion hole 30a of the first cam member 30, and the insertion hole 31a of the second cam member 31 in this order. The compression coil spring 35 is disposed between the support piece portion 29 located on the left side of the keyboard attachment portion 14 and the first cam member 30 and biases the first cam member 30 toward the second cam member 31. . The first cam member 30 is movable in the axial direction with respect to the hinge shaft 12.

  As described above, the first cam member 30 has the insertion hole 30a formed in the same shape as the cross-sectional shape of the detent shaft portion 17 of the hinge shaft 12, so that It is impossible to rotate in the rotation direction. Accordingly, the first cam member 30 functions as a rotating portion that is rotated as the hinge shaft 12 rotates. Further, as described above, since the insertion hole 31a is formed in a round hole shape, the second cam member 31 is rotatable with respect to the hinge shaft 12 in the direction around the axis.

  The second cam member 31 is engaged with the engagement notches 29b and 29b of the support piece 29 located on the right side of the keyboard mounting portion 14 at the engagement protrusions 31b and 31b, respectively. Accordingly, the second cam member 31 is not rotatable with respect to the keyboard mounting portion 14, is rotated along with the rotation of the keyboard mounting portion 14 with respect to the hinge shaft 12, and is fixed to the keyboard mounting portion 14. Functions as a fixed part.

  The hinge shaft 12 has a part of the detent shaft part 17 and a support shaft part 18 projecting rightward from the keyboard mounting part 14, and a mode forming lever 34 is supported by a part of the projecting detent shaft part 17. Is done. As described above, the mode forming lever 34 has the supported hole 34c formed in the same shape as the cross-sectional shape of the non-rotating shaft portion 17, and therefore cannot rotate in the direction around the axis of the hinge shaft 12. It is said that. Accordingly, the mode forming lever 34 is rotated with the rotation of the hinge shaft 12. The mode forming lever 34 is movable in the axial direction with respect to the hinge shaft 12.

  The hinge shaft 12 has a support shaft portion 18 inserted through the shaft support holes 21a and 21a and the bearing portion 25 of the main body attachment portion 13, and is rotatably supported by the bearing portion 25 with a predetermined friction. As the bearing portion 25, when the hinge shaft 12 having the display mounting portion 15 is rotated with respect to the main body mounting portion 13, a first friction is generated that generates a frictional force in the direction around the axis of the hinge shaft 12. It functions as a part.

  The compression coil spring 35, the first cam member 30, and the second cam member 31 are connected to the hinge shaft 12 when the keyboard attachment portion 14 is rotated with respect to the hinge shaft 12 having the display attachment portion 15. It functions as a second friction generating part that generates a frictional force in the axial direction.

  In the hinge body 10, a part of the hinge body 10 is processed into a flat shape to form the rotation prevention shaft portion 17, thereby preventing the rotation of the second cam member 31, the mode forming lever 34, etc. with respect to the hinge shaft 12. Since it comprises, it is easy to process and simplifies the mechanism.

  As shown in FIG. 8, the hinge body 10 configured as described above is attached to the apparatus main body 2 with the main body attachment portion 13 in a state where a part is arranged in the arrangement notch 3 b of the display apparatus 3. The display attachment portion 15 is attached to the display device 3, and the keyboard attachment portion 14 is attached to the keyboard device 4.

  The body mounting portion 13 is attached to the apparatus body 2 by mounting screws (not shown) inserted through the mounting holes 23a, 23a, and the body mounting portion 15 is screwed into the mounting screw holes 15a, 15a, 15a (not shown). The keyboard mounting portion 14 is attached to the keyboard device 4 by a mounting screw (not shown) inserted through the insertion holes 27a, 27a, 27a and a mounting screw (not shown) screwed into the screw hole 28a. It is done.

  Therefore, when the display device 3 is rotated with respect to the device main body 2, the hinge shaft 12 having the display mounting portion 15 is rotated with respect to the main body mounting portion 13, and functions as a first friction generating portion. Friction occurs between the bearing portion 25 and the support shaft portion 18 of the hinge shaft 12, and the display device 3 is positioned at an arbitrary position between the first rotation position and the second rotation position with respect to the apparatus body 2. It is possible to stop at.

  At this time, as shown in FIG. 11, the mode forming lever 34 is in a restricting position corresponding to the restricting portion 21b provided in the main body attaching portion 13 (the mode forming lever 34 in the restricting position is indicated by a solid line). As the hinge shaft 12 is rotated, the mode forming lever 34 is rotated. When the display device 3 is rotated at a certain angle, the mode forming lever 34 is brought into contact with the restricting portion 21b and the hinge shaft 12 is rotated. The display device 3 is held at the second rotational position (see FIG. 12).

  When the keyboard device 4 is rotated with respect to the display device 3, the keyboard mounting portion 14 is rotated with respect to the hinge shaft 12 having the display mounting portion 15 and functions as a second friction generating portion. Friction occurs between the cam surface 32 of the cam member 30 and the cam surface 33 of the second cam member 31.

  At this time, when the keyboard device 4 is in the closed position (see FIGS. 4 and 5), the cam convex surfaces 31 c and 31 c of the first cam member 30 and the cam concave surfaces 32 a and 32 a of the second cam member 31 are engaged. (See FIG. 13).

  When the keyboard device 4 is rotated toward the open position and the keyboard mounting portion 14 is rotated with respect to the hinge shaft 12, the inclined surfaces 32b, 32b,. The inclined surfaces 33b, 33b,... Of the cam member 31 are in sliding contact (see FIG. 14).

  When the keyboard device 4 is further rotated toward the open position, the inclined surfaces 32b, 32b,... Of the first cam member 30 and the inclined surfaces 33b, 33b,. Following the sliding contact, the cam convex surfaces 32a, 32a of the first cam member 30 and the cam convex surfaces 33a, 33a of the second cam member 31 are in sliding contact.

  In the state where the cam surface 32 of the first cam member 30 and the cam surface 33 of the second cam member 31 are in sliding contact as described above, the inclined surfaces 32b, 32b,... When the inclined surfaces 33b, 33b,... Are in sliding contact, the first cam member 30 is rotated while moving in the axial direction of the hinge shaft 12, and thus a large friction is generated. Thus, when the cam convex surfaces 32a, 32a and the cam convex surfaces 33a, 33a are in sliding contact, there is no movement of the first cam member 30 in the axial direction, and the first cam member 30 and the second cam member 31 Since the contact area is also small, the friction is close to zero.

  As shown in FIG. 16, the support 11 of the hinge portion 8 includes a support shaft 36, an oil damper 37, a first bracket 38, a cable cover 39, and a second bracket 40.

  The support shaft 36 becomes a rotation fulcrum with respect to the device main body 2 of the display device 3 and also a rotation fulcrum with respect to the display device 3 of the keyboard device 4. The right end portion of the support shaft 36 is provided as an attachment shaft portion 36 a that is attached to the display device 3.

  The oil damper 37 is rotatable with respect to the support shaft 36 and functions as a means for reducing the rotation speed when the keyboard device 4 is rotated from the closed position toward the open position. Note that, when the keyboard device 4 is rotated from the open position to the closed position, a resistance force by the oil damper 37 is not applied to the turning power.

  The oil damper 37 has a cylindrical enclosing portion 37a in which oil for deceleration is encapsulated and an attachment projection 37b protruding from the peripheral surface of the enclosing portion 37a. A portion of the support shaft 36 excluding the mounting shaft portion 36a is disposed inside the enclosing portion 37a.

  The first bracket 38 is attached to the attachment protrusion 37 b of the oil damper 37. The first bracket 38 includes a horizontally long mounting surface portion 38a, a mounted surface portion 38b bent by 90 ° from the mounting surface portion 38a, and a support surface portion 38c. Screw mounting holes 38d, 38d,... Are formed in the mounting surface portion 38a. The attached surface portion 38 b is attached to the attachment protrusion 37 b of the oil damper 37. The support surface portion 38 c is located immediately on the left side of the oil damper 37 and supports the oil damper 37 and the support shaft 36.

  The cable cover 39 is disposed immediately to the left of the support surface portion 38c of the first bracket 38. The cable cover 39 is a part of a connection cable for electrical connection between the apparatus body 2 and the display apparatus 3 and a connection cable for electrical connection between the apparatus body 2 and the keyboard device 4. It is a cover for storing a part of.

  The cable cover 39 is formed by integrally forming a cylindrical portion 41 and an arrangement projection 42 protruding from the peripheral surface of the cylindrical portion 41, and the cylindrical portion 41 has a concave portion 41 a extending in the circumferential direction. The cylindrical portion 41 is formed with a step continuous with the recess 41a, and this step is used as the operation portion 41b.

  The second bracket 40 is disposed immediately on the left side of the cable cover 39, and the support shaft 36 is rotatable with respect to the second bracket 40. The second bracket 40 is formed in a substantially frame shape and has insertion holes 40a, 40a, 40a.

  The support 11 configured as described above has the second bracket 40 attached to the apparatus main body 2 in a state where a part of the support 11 is arranged in the arrangement notch 3 b of the display device 3, and the attachment shaft of the support shaft 36. The part 36a is attached to the display device 3, and the first bracket 38 is attached to the keyboard device 4 (see FIG. 8).

  The second bracket 40 is attached to the apparatus body 2 by mounting screws (not shown) inserted into the insertion holes 40a, 40a, 40a, the mounting shaft portion 36a is attached to the display device 3 by being held by a holding member (not shown), The one bracket 38 is attached to the keyboard device 4 by a mounting screw (not shown) inserted through the screw insertion holes 38d, 38d, 38d.

  When the display device 3 is rotated with respect to the device body 2, the support shaft 36 is rotated with respect to the second bracket 40, and when the keyboard device 4 is rotated with respect to the display device 3, the first The bracket 38, the oil damper 37, and the cable cover 39 are integrally rotated with respect to the support shaft 36.

  For example, a detection switch 43 attached to a switch attachment portion (not shown) of the apparatus main body 2 is located in the vicinity of the cable cover 39 (see FIG. 16). The detection switch 43 includes a housing 43a, a detector 43b provided in the housing 43a, and an operating device 43c for operating the detector 43b. The operation element 43 c is disposed in the recess 41 a of the cable cover 39.

  The detection switch 43 is operated by the operation portion 41b of the cable cover 39 when the first bracket 38, the oil damper 37, and the cable cover 39 are rotated together as the keyboard device 4 is rotated. It has a function of detecting the position of the keyboard device 4 when the child 43c is pressed and the detector 43b is operated by the pressed operator 43c. When the detector 43b is operated by the operator 43c, the closed position where the operation keys 4a, 4a,... Of the keyboard device 4 are closed by the display device 3 is detected.

  Since the operation portion 41b for operating the detection switch 43 is provided in the cable cover 39 having the function of closing the connection cable in this way, the cable cover 39 is separate from the cable cover 39 as a part for operating the detection switch 43. It is not necessary to provide a dedicated part, and accordingly, the number of parts and the arrangement space can be reduced.

  As described above, the hinge cover 44 is attached to the arrangement notch 3b of the display device 3 in a state where the hinge body 10 and the support body 11 are attached to the device main body 2, the display device 3 and the keyboard device 4, respectively. The hinge cover 44 covers a part of the hinge body 10 and the support body 11 (see FIGS. 1, 3 and 8). The hinge cover 44 is disposed between the cover portions 4c and 4c of the keyboard device 4, and the hinge body 10 and the other part of the support body 11 are also covered by the cover portions 4c and 4c (see FIGS. 1 and 3).

  As shown in FIG. 17, the hinge cover 44 has a peripheral surface portion 44a having a horizontally long semi-cylindrical shape, and side surface portions 44b, 44b continuous to the left and right side edges of the peripheral surface portion 44a, and one side surface portion 44b. Is provided with holding portions 44c, 44c, and 44c protruding toward the other side surface portion 44b.

  In a state where the hinge body 10 and a part of the support body 11 are covered by the hinge cover 44, the position of the mode forming lever 34 is regulated by the holding portions 44c, 44c, and 44c as shown in FIG. The lever 34 is held at a restriction position corresponding to the restriction part 21 b of the main body attachment part 13. Accordingly, in the state where the hinge cover 44 is attached, the mode forming lever 34 is always held at the restricting position, and the display device is only in the range of the rotation angle −3 ° to 25 ° in the use mode shown in FIG. 3 is rotatable.

  Thus, in the state where the hinge cover 44 is attached, since the use mode is always set, it is possible to prevent the occurrence of a problem such that the user mistakenly sets the maintenance mode.

  By removing the hinge cover 44, the mode forming lever 34 can be moved to the left with respect to the hinge shaft 12 to be positioned at the non-restricted position (the state where the mode forming lever 34 has been moved to the non-restricted position is shown in FIG. 11). (Indicated by a two-dot chain line). When the mode forming lever 34 is moved to the non-regulating position, the display device 3 can be rotated at an arbitrary angle with respect to the device main body 2 in a range from 25 ° to −110 °. Therefore, the maintenance mode can be set by rotating the display device 3 from −3 ° to −110 ° shown in FIG. 2 (see FIG. 3).

  Since the maintenance mode can be set simply by removing the hinge cover 44 and moving the mode forming lever 34 to the left as described above, the maintenance mode can be easily set.

  In the maintenance mode, as shown in FIG. 3, a large work space is formed between the display device 3 and the device main body 2, and maintenance work for the hinge body 10, the support body 11, the device main body 2, the display device 3, and the like is performed. Can be easily performed.

  In addition, since a large work space is formed between the apparatus main body 2 and the display device 3, necessary work can be performed on the back side of the display device 3. Therefore, as described above, the mounting screws 9e, 9e,... For connecting the front panel portion 9c and the rear panel portion 9d of the display device 3 can be performed from the back surface 9a side of the panel 9, and the display device 3 No unsightly screw is arranged on the front side, and there is no need to affix a blindfold seal or the like for avoiding the unpleasant appearance when the screw is arranged on the front side.

  Further, it is not necessary to separate the display device 3 from the device main body 2 during maintenance work, and accordingly, the length of the connection cable serving as a signal line for connecting the display device 3 and the device main body 2 can be shortened.

  In addition, since the device main body 2, the display device 3 and the keyboard device 4 are connected by the hinge portion 8, the device main body 2, the display device 3 and the keyboard device 4 are assembled and combined in separate processes. Therefore, it is possible to improve the workability in the assembly work when manufacturing the information processing apparatus 1.

  Next, the relationship between the hinge torque generated in the hinge body 10 and the damper torque generated in the oil damper 37 of the support 11 when the keyboard device 4 is rotated with respect to the display device 3 will be described (FIG. 18). Thru | or FIG. 20).

  In general, the damper torque is a viscous torque and depends on the rotational speed, whereas the hinge torque is independent of the rotational speed and the dynamic friction is constant.

  As shown in FIG. 18, in the process in which the keyboard device 4 is rotated from the closed position to the open position, the hinge torque increases from T1 to T2 immediately after the rotation starts, and then decreases to T3 to a constant value. Become. T1 to T2 are states where the cam convex surfaces 32c and 32c of the first cam member 30 of the hinge body 10 are in sliding contact with the inclined surfaces 33b and 33b of the second cam member 31, and T3 is the first cam. The cam convex surfaces 32c, 32c of the member 30 are in sliding contact with the cam convex surfaces 33c, 33c of the second cam member 31. T3 in which the cam convex surfaces 32c and 32c are in sliding contact with the cam convex surfaces 33c and 33c is a value close to 0 as described above.

  As shown in FIG. 19, the damper torque gradually increases from the start of rotation to a predetermined angle and becomes T4, which is a constant value.

  As shown in FIG. 20, the total torque, which is the sum of the hinge torque and the damper torque, increases from T1 to T5 immediately after the start of rotation, then decreases to T6, further increases to T7, and becomes a constant value. T7 is the sum of the constant value T3 of the hinge torque and the constant value T4 of the damper torque. Since T3 is a value close to 0, T4 occupies a large proportion. FIG. 20 also shows the hinge torque as a comparison target with the total torque.

  When the keyboard device 4 is rotated to a predetermined angle (angle S1 shown in FIG. 20) in the process in which the keyboard device 4 reaches the open position in this way, thereafter, a constant value T3 of the hinge torque and a constant value of the damper torque. The keyboard device 4 is rotated to the open position in a state of T7 which is the sum of T4.

  As described above, when the keyboard device 4 is rotated by a certain angle toward the open position, the keyboard device 4 is rotated by the total torque T7 that is the sum of the hinge torque T3 and the damper torque T4 that are close to zero. The

  Therefore, since the damper torque T4 accounts for a large proportion of the total torque T7, the torque management during the rotation of the keyboard device 4 is easy, and the effect of the oil damper 37 is fully exhibited, so that the display device of the keyboard device 4 is displayed. 3 can be reduced, and the occurrence of problems such as stoppage of the keyboard device 4 during the rotation due to the influence of hinge torque can be prevented.

  When the keyboard device 4 is rotated with respect to the display device 3, the first cam member 30 and the second cam member 31 each having the cam surfaces 32 and 33 are slidably brought into contact with each other. , 32c, the so-called click feeling is generated at the moment of sliding contact between the inclined surfaces 33b, 33b and the cam convex surfaces 33c, 33c. The magnitude of this click feeling depends on the magnitude of the difference between T5 and T6 in the total torque shown in FIG.

  Therefore, in the information processing apparatus 1, since T3 is a value close to 0 and the difference between T5 and T6 is large, the keyboard device 4 is rotated from the open position to the closed position and immediately before reaching the closed position. Immediately after the rotation starts from the closed position to the open position, the user is given a large click feeling, and the usability is improved.

  On the other hand, in the information processing apparatus 1, the hinge shaft 12 is rotatably supported by the bearing portion 25 of the main body attachment portion 13 so that the display device 3 is hinged when the display device 3 is rotated with respect to the device main body 2. A first friction generating portion that applies a frictional force in the direction around the axis of the shaft 12 is provided, and the keyboard device 4 is attached to the display device 3 by the compression coil spring 35, the first cam member 30, and the second cam member 31. A second friction generating portion is provided that applies a frictional force in the axial direction of the hinge shaft 12 when being rotated.

  Therefore, by providing two friction generating units, independent torque management can be performed, and torque management can be facilitated.

  In addition, since the two friction generating portions are configured in the hinge body 10 having one hinge shaft 12, the number of parts can be reduced correspondingly, and the arrangement space can be reduced. 1 can be reduced in production cost and size.

  Further, in the information processing apparatus 1, since the two friction generating portions are configured in the hinge body 10 and the hinge body 10 is disposed on one side in the axial direction of the hinge portion 8, The other side in the axial direction can be used as an arrangement space for the connection cable and an arrangement space for the detection switch 43, and the information processing apparatus 1 can be downsized by effectively using the space.

  The specific shapes and structures of the respective parts shown in the above-described best mode are merely examples of the implementation of the present invention, and the technical scope of the present invention is limited by these. It should not be interpreted in a general way.

2 to 20 show the best mode of the information processing apparatus of the present invention, and this figure is a perspective view of the information processing apparatus. It is a side view which shows the rotatable angle of a display apparatus. It is a perspective view which shows the state of the information processing apparatus in a maintenance mode. It is a side view of information processing equipment which shows the state where a keyboard device is in a closed position and a display device is in the 1st rotation position. It is a side view of information processing equipment which shows the state where a keyboard device is in a closed position and a display device is in the 2nd rotation position. It is a side view of information processing equipment which shows a state where a keyboard device is in an open position and a display device is in the 1st rotation position. It is a side view of information processing equipment which shows a state where a keyboard device is in an open position and a display device is in the 2nd rotation position. It is a perspective view which shows the state by which the hinge body and the support body are arrange | positioned at the notch for arrangement | positioning of a display apparatus. It is a perspective view of a hinge body. It is a disassembled perspective view of a hinge body. It is an enlarged plan view which shows each position with respect to the hinge axis | shaft of a mode formation lever by making a hinge cover into a cross section. It is an enlarged side view which shows the state by which the mode formation lever was controlled by the control part of the attachment part for main bodies by making a part into a cross section. FIG. 14 and FIG. 15 show the operation of the cam member when the keyboard device is rotated with respect to the display device. In this figure, the cam convex surface of the first cam member is the cam concave surface of the second cam member. It is an enlarged plan view which shows the state which touches. It is an enlarged plan view showing a state where the cam convex surface of the first cam member is in contact with the inclined surface of the second cam member. It is an enlarged plan view showing a state where the cam convex surface of the first cam member is in contact with the cam convex surface of the second cam member. It is an expansion perspective view of a support body. It is an expansion perspective view which shows a part of hinge cover. It is a graph which shows hinge torque. It is a graph which shows a damper torque. It is a graph which shows a total torque. FIG. 22 and FIG. 23 show each torque generated in the conventional information processing apparatus, and this figure is a graph showing the hinge torque. It is a graph which shows a damper torque. It is a graph which shows a total torque.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Information processing apparatus, 2 ... Apparatus main body, 3 ... Display apparatus, 3a ... Display screen, 4 ... Keyboard apparatus, 4a ... Operation key, 10 ... Hinge body, 12 ... Hinge shaft, 13 ... Main part attachment part, 14 ... Keyboard mounting portion, 15 ... display mounting portion, 18 ... support shaft portion (first friction generating portion), 25 ... bearing portion (first friction generating portion), 30 ... first cam member (fixing portion) (Second friction generating part), 31 ... second cam member (rotating part) (second friction generating part), 35 ... compression coil spring (second friction generating part), 37 ... oil damper

Claims (2)

An information processing device comprising a display device that displays an image on a display screen, a keyboard device for performing a predetermined operation, and a device main body that performs processing according to the predetermined operation on the keyboard device,
A hinge body that rotatably supports the display device with respect to the main body and supports the keyboard device with respect to the display device;
The hinge body is
A hinge shaft which is a rotation center with respect to the device body of the display device and a rotation center with respect to the display device of the keyboard device;
A main body mounting portion mounted on the hinge shaft and attached to the apparatus main body;
A display mounting portion attached to the display device and provided on the hinge shaft, the display mounting portion being rotatable with respect to the body mounting portion with the hinge shaft as a fulcrum
A keyboard mounting portion attached to the keyboard device and provided on the hinge shaft, the keyboard mounting portion being rotatable with respect to the display mounting portion using the hinge shaft as a fulcrum;
A first friction generating section for applying a frictional force when the display mounting section is rotated with respect to the main body mounting section;
A second friction generating portion for applying a frictional force when the keyboard mounting portion is rotated with respect to the display mounting portion;
One friction generating portion is configured to generate a frictional force between the peripheral surface of the hinge shaft and the main body mounting portion or the display mounting portion,
As the other friction generating part, there are provided a rotating part that is rotated as the keyboard mounting part is rotated, and a fixed part that is not rotatable about the axis of the hinge shaft. An information processing device configured to generate frictional force by contacting in the axial direction of the hinge shaft. An information processing device comprising a display device for displaying an image on a display screen and a keyboard device having a plurality of operation keys, wherein the keyboard device is rotatably supported by the display device via a hinge body,
The keyboard device is rotatable via a hinge body between a closed position where the operation key is closed by the display device and an open position where the operation key is opened,
An oil damper is provided that provides resistance to rotational force when the keyboard device is rotated with respect to the display device and reduces the rotation speed.
The frictional force generated in the hinge body as the keyboard device rotates with respect to the display device is set to substantially zero at a predetermined position while the keyboard device is rotated from the closed position to the open position. Information processing equipment characterized by

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