JPWO2007080955A1 - Operation device and playback device - Google Patents

Abstract

The operating device (40) includes a disk-shaped operating element (41) that can be rotated, and at least one holding member (411) that rotatably holds the operating element and rotates as the operating element rotates. A holding member is rotatably held, and a base member (412) provided with an elastic member (4122) at a position adjacent to or close to both ends of the holding member in the rotation axis direction of the holding member.

Description

  The present invention relates to an operation device such as a jog dial provided in a DJ device or the like, and a playback device including the DJ device or the like.

  In recent years, recording media capable of recording and reproducing data using digital signals, such as CDs and DVDs, have become widespread. Along with this, development of an information reproducing apparatus that performs a specific reproducing process caused by a digital signal is also underway. For example, on a CD or DVD, a plurality of music pieces (that is, content data) are recorded in association with each other. More specifically, for example, each piece of music having a predetermined reproduction time is recorded as a plurality of data groups distinguished by track numbers. For this reason, the information reproducing apparatus can perform cueing reproduction that searches and reproduces the start address of each music piece, random reproduction that arbitrarily changes the reproduction order of each piece of music, and the like.

  Furthermore, by using two or more information reproducing apparatuses, by continuously reproducing the beat (in other words, beat) position, interval, strength, etc. of the music reproduced in each information reproducing apparatus, Two or more songs can be played as a single connected song, or two or more songs can be superimposed and played. That is, a plurality of music pieces can be reproduced continuously or simultaneously without causing the viewer to feel uncomfortable. Such an operation is generally called a mixing operation.

  Such random reproduction, mixing reproduction, and the like are executed, for example, when the user rotates the jog dial. A typical example of an information reproducing apparatus having a jog dial is a DJ (Disc Jockey) device.

Japanese Patent No. 3587669

  In general, a jog dial has a rotatable operating element supported by a roller. And the roller is comprised so that rotation is possible with rotation of an operation element, when the axis | shaft is supported by the bearing part. At this time, the roller and the bearing portion may collide with the rotation of the roller. In particular, since the bearing portion only supports the roller in a direction orthogonal to the rotation axis direction of the roller, if the roller moves in a direction along the rotation axis direction of the roller, the roller and the bearing portion collide with each other. Can happen. This collision causes noise such as “tick”. In order to stably support the rotor, since the rollers are provided at a plurality of locations, noise such as “tick” may be generated from each of the plurality of locations. This noise can be very noisy in some cases and can give the user a poor impression.

  Here, a countermeasure for reducing noise due to the above-described collision can be considered by applying lubricating oil such as grease to the gap between the roller and the bearing portion. However, since the rollers are provided at a plurality of locations, it is very troublesome to apply grease or the like. Furthermore, grease or the like may flow out over time and adhere to an electronic circuit (or electrical contact) or the like. In this case, inconvenience such as contact failure may occur.

  Examples of problems to be solved by the present invention include the above. It is an object of the present invention to provide an operation device and a playback device that can reduce the generation of unpleasant noise.

(Operating device)
In order to solve the above-described problems, a first operating device of the present invention includes a disk-shaped operating element that can be rotated, and holds the operating element in a rotatable manner, and at least rotates with the rotation of the operating element. One holding member and a base member that holds the holding member rotatably and includes an elastic member at a position adjacent to or close to both ends of the holding member in the rotation axis direction of the holding member.

  According to the first operation device of the present invention, for example, the user can perform various operations according to the rotation by rotating the disk-shaped operation element. The operation element is held by one or a plurality of holding members. The holding member holds the manipulator so that the manipulator can rotate when the manipulating member rotates as the manipulator rotates. The holding member is held by the base member. The base member holds the holding member so that the holding member can rotate.

  Particularly in the first operating device, the base member includes an elastic member at a position adjacent to or close to both ends of the holding member in the rotation axis direction of the holding member. Here, the “elastic member” in the present invention includes a member that is itself an elastic body, and even if the member itself is a member other than an elastic body (for example, a rigid body, etc.), It is also intended to include a member that realizes the action. Specific examples of the “elastic member” in the present invention include, for example, a plate-shaped resin spring, a metal plate spring, a coil spring, and various rubbers.

  When the holding member moves in a direction along the rotation axis direction of the holding member in accordance with the rotation operation of the operation element, both ends of the holding member collide with the elastic member. In this case, as compared with the case where both ends of the holding member collide with members other than the elastic member, the impact of the collision of the holding member is absorbed or alleviated. Therefore, noise generated by the collision of the holding member (that is, noise generated by the movement of the holding member in the direction along the rotation axis direction of the holding member) can be relatively reduced. For this reason, generation | occurrence | production of an unnecessary noise can be suppressed when the user is operating the operation element, and an unpleasant impression is not given to a user.

  In addition, since it is not necessary to apply lubricating oil such as grease in order to absorb or reduce the impact of the collision of the holding member, it is possible to reduce the burden when manufacturing the operating device. Furthermore, it is possible to eliminate the risk of inconvenience such as defective contact due to the lubricating oil such as grease flowing out.

  As described above, according to the first operating device, generation of unpleasant noise can be reduced.

  One aspect of the first operating device of the present invention is such that the holding member sandwiches the first holding portion in contact with the operating element, contacts the base member, and holds the first holding portion. A second holding portion having a diameter smaller than that of the portion, and the base member includes the elastic member at a position adjacent to or close to the second holding portion in the rotation axis direction of the holding member.

  According to this aspect, for example, the substantially cylindrical first holding portion rotates while contacting the operation element, so that the operation element is rotatably held. For example, when the substantially cylindrical second holding portion rotates while being in contact with the base member, the entire holding member is rotatably held. And since the 2nd holding | maintenance part currently hold | maintained at the base part collides with an elastic member, the noise which arises by this collision (namely, the noise which arises when a holding member moves to the direction along the rotating shaft direction of a holding member) Can be suppressed.

  According to another aspect of the first operation device of the present invention, the holding member includes a first holding portion that contacts the operation element, and the first holding portion that sandwiches the first holding portion and that contacts the base member and the first holding portion. A second holding portion having a smaller diameter than the first holding portion, the base member holding the second holding portion in a direction orthogonal to the rotation axis direction of the holding member, and the holding member A second base portion that holds the second holding portion in a direction along the rotation axis direction, and the second base portion is adjacent to or close to the second holding portion in the rotation axis direction of the holding member. The elastic member is included at a position to be operated.

  According to this aspect, for example, the substantially cylindrical first holding portion rotates while contacting the operation element, so that the operation element is rotatably held. For example, when the substantially cylindrical second holding portion rotates while being in contact with the first base portion, the entire holding member is rotatably held in a direction orthogonal to the rotation axis direction of the holding member. Similarly, for example, when the substantially cylindrical second holding portion rotates while being in contact with the second base portion, the entire holding member is rotatably held in a direction along the rotation axis direction of the holding member. Since the second base portion includes the elastic member, the second holding portion collides with the elastic member, and noise generated by the collision (that is, the holding member moves in a direction along the rotation axis direction of the holding member). Occurrence of noise) can be suppressed.

  In another aspect of the first operating device of the present invention, a gap having a predetermined size is provided between both ends of the holding member in the rotation axis direction of the holding member and the elastic member.

  According to this aspect, the holding member rotates smoothly with the rotation operation of the operation element, and the generation of noise can be suppressed as described above. Therefore, the above-described various benefits can be enjoyed without causing the user operating the operating element to feel uncomfortable.

  In another aspect of the first operating device of the present invention, both ends of the holding member in the rotation axis direction of the holding member have a smaller diameter than portions other than the both ends.

  According to this aspect, even when both ends of the holding member collide with the elastic member, the holding member can smoothly rotate. Therefore, the above-described various benefits can be enjoyed without causing the user operating the operating element to feel uncomfortable.

  Both ends of the holding member in the rotation axis direction of the holding member may be conical, for example. Alternatively, the shape is not limited to the conical shape, and any shape may be used as long as the contact area with the elastic member can be relatively reduced. In other words, both ends of the holding member in the direction of the rotation axis of the holding member may have any shape as long as they do not contact the elastic member only to the extent that the smooth rotation of the holding member is not hindered.

  In another aspect of the first operating device of the present invention, the elastic member includes a plate-like resin that can be bent along a rotation axis direction of the holding member.

  According to this aspect, the elastic member can be configured with a relatively simple shape.

  In another aspect of the first operating device of the present invention, the elastic member includes the same material as the base member.

  According to this aspect, the elastic member can be integrally formed when the base member is manufactured. For this reason, the burden concerning manufacture of the base member provided with the elastic member can be reduced.

  In another aspect of the first operating device of the present invention, the elastic member includes a material different from that of the base member.

  According to this aspect, the elastic coefficient and the like of the elastic member can be arbitrarily selected. For this reason, it is possible to arbitrarily set the degree of reduction in noise generation and the degree of rigidity of the elastic member. That is, the design range of the operating device can be expanded.

  In order to solve the above-described problem, a second operating device of the present invention includes a disk-shaped operating element that can be rotated, and holds the operating element in a rotatable manner, and at least rotates with the rotation of the operating element. One holding member and a base member that rotatably holds the holding member are provided, and the holding member includes an elastic member at a position adjacent to or close to the base member in the rotation axis direction of the holding member. .

  According to the second operation device of the present invention, similarly to the first operation device, for example, the user can perform various operations according to the rotation by rotating the disk-shaped operation element. The operation element is held by one or a plurality of holding members. The holding member holds the manipulator so that the manipulator can rotate when the manipulating member rotates as the manipulator rotates. The holding member is held by the base member. The base member holds the holding member so that the holding member can rotate.

  Particularly in the second operating device, the holding member includes an elastic member at a position adjacent to or close to the base member in the rotation axis direction of the holding member. When the holding member moves in a direction along the rotation axis direction of the holding member in accordance with the rotation operation of the operation element, the elastic member included in the holding member collides with the base member. In this case, compared with the case where a member other than the elastic member included in the holding member collides with the base member, the impact of the collision of the holding member is absorbed or alleviated. Therefore, noise generated by the collision of the holding member (that is, noise generated by the movement of the holding member in the direction along the rotation axis direction of the holding member) can be relatively reduced. For this reason, generation | occurrence | production of an unnecessary noise can be suppressed when the user is operating the operation element, and an unpleasant impression is not given to a user.

  In addition, since it is not necessary to apply lubricating oil such as grease in order to absorb or reduce the impact of the collision of the holding member, it is possible to reduce the burden when manufacturing the operating device. Furthermore, it is possible to eliminate the risk of inconvenience such as defective contact due to the lubricating oil such as grease flowing out.

  As explained above, according to the 2nd operating device, the same profit as a 1st operating device can be enjoyed.

  In one aspect of the second operating device of the present invention, the holding member sandwiches the first holding portion with the first holding portion that comes into contact with the operation element, contacts the base member, and the first holding portion. A second holding part having a diameter smaller than that of the part, and a third holding part sandwiched between the first holding part and the second holding part, wherein the third holding part is formed of the holding member. The elastic member is provided at a position adjacent to or close to the base member in the rotation axis direction.

  According to this aspect, for example, the substantially cylindrical first holding portion rotates while contacting the operation element, so that the operation element is rotatably held. For example, when the substantially cylindrical second holding portion rotates while being in contact with the base member, the entire holding member is rotatably held. Then, noise generated when the elastic member included in the third holding portion sandwiched between the first holding portion and the second holding portion collides with the base member (that is, the holding member moves in a direction along the rotation axis direction of the holding member). Occurrence of noise) can be suppressed.

  According to another aspect of the second operating device of the present invention, the holding member sandwiches the first holding portion with the first holding portion that contacts the operation element, contacts the base member, and the first holding portion. A second holding part having a diameter smaller than that of the part, and a third holding part sandwiched between the first holding part and the second holding part, and the base member is a rotating shaft of the holding member. A first base portion that contacts the second holding portion in a direction perpendicular to the direction, and a second base portion that contacts the third holding portion in a direction along the rotation axis direction of the holding member, The third holding portion includes the elastic member at a position adjacent to or close to the second base portion in the rotation axis direction of the holding member.

  According to this aspect, for example, the substantially cylindrical first holding portion rotates while contacting the operation element, so that the operation element is rotatably held. For example, when the substantially cylindrical second holding portion rotates while being in contact with the first base portion, the entire holding member is rotatably held in a direction orthogonal to the rotation axis direction of the holding member. Similarly, for example, when the substantially cylindrical third holding portion rotates while being in contact with the second base portion, the entire holding member is rotatably held in a direction along the rotation axis direction of the holding member. And since the 3rd holding part is provided with an elastic member, the noise (namely, in the direction along the direction of the axis of rotation of a holding member) generated by the elastic member with which the 3rd holding part collides with the 2nd base part Generation of noise) caused by movement of the holding member can be suppressed.

  In another aspect of the second operation device of the present invention, the elastic member includes the same material as the holding member.

  According to this aspect, the elastic member can be integrally formed when the holding member is manufactured. For this reason, the burden concerning manufacture of the holding member provided with the elastic member can be reduced.

  In another aspect of the second operation device of the present invention, the elastic member includes a material different from that of the holding member.

  According to this aspect, the elastic coefficient and the like of the elastic member can be arbitrarily selected. For this reason, it is possible to arbitrarily set the degree of reduction in noise generation and the degree of rigidity of the elastic member. That is, the design range of the operating device can be expanded.

(Playback device)
In order to solve the above-described problems, the playback device of the present invention includes a first or second operation device of the present invention described above (including various aspects thereof) and a predetermined operation according to the operation content of the operation device. Reproducing means for reproducing the data.

  According to the playback device of the present invention, data recorded on a recording medium or the like (for example, video data or music) while enjoying the same benefits as those of the first or second operation device of the present invention described above. Data, etc.) can be suitably reproduced.

  Incidentally, in response to the various aspects of the first or second operating device of the present invention described above, the reproduction method according to the present invention can also adopt various aspects.

  These effects and other advantages of the present invention will become more apparent from the embodiments described below.

  As described above, according to the first operating device of the present invention, the operating element, the holding member, and the base member including the elastic member are provided. According to the 2nd operating device of this invention, an operation element, a holding member provided with an elastic member, and a base member are provided. According to the reproducing device of the present invention, the first or second operating device of the present invention and a reproducing means are provided. Therefore, generation of unpleasant noise can be reduced.

1 is a block diagram conceptually showing the basic structure of an optical disc reproducing apparatus in an example. FIG. 2 is a plan view conceptually showing the external appearance of the operation unit of the optical disk reproducing apparatus according to the embodiment. It is a top view which shows notionally the external appearance (in other words, the structure which supports a jog dial) when a jog dial is removed from an operation part. It is a perspective view which shows concretely the structure of the roller etc. which support a jog dial. It is a top view which shows notionally the mode of a roller and a roller holding | maintenance part in case the roller is not moving to the direction along the rotating shaft direction of a roller. It is a top view which shows notionally the mode of a roller and a roller holding | maintenance part in case the roller is moving to the direction along the rotating shaft direction of a roller. It is a top view which shows concretely composition of a roller etc. which support a jog dial concerning a modification.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Optical disk reproducing device 40 Operation part 41 Jog dial 411, 421 Roller 412, 422 Roller holding | maintenance part 4111, 4211 1st roller 4112a, 4112b, 4212a, 4212b Shaft 4213a, 4213b 2nd roller 4121a, 4121b, 4221a, 4221b Bearing part 4122a, 4122b Resin spring

  Hereinafter, the best mode for carrying out the present invention will be described for each embodiment in order with reference to the drawings. In the following embodiments, the information reproduction apparatus of the present invention is applied to an optical disk reproduction apparatus such as a CD player or a DVD player having various reproduction functions represented by reproduction speed control, tempo control, rewind reproduction, and the like. This is an example of the case. In addition, the optical disk playback apparatus according to the present embodiment described below is used when continuously playing music data or video data while adding various special effects (effects) to a ballroom such as a club or a disco. Used as DJ equipment used in Note that “DJ” in the present embodiment is intended to indicate that content data in a broad sense including not only music but also video and the like is reproduced using a special technique.

(1) Basic Configuration First, the basic configuration of the optical disc reproducing apparatus according to the present embodiment will be described with reference to FIGS. 1 and 2. FIG. 1 is a block diagram conceptually showing the basic configuration of the optical disk reproducing apparatus according to the present embodiment, and FIG. 2 conceptually shows the external appearance of the operation unit of the optical disk reproducing apparatus according to the present embodiment. FIG.

  As shown in FIG. 1, an optical disk reproducing apparatus 1 includes an optical pickup (PU: Pick Up) 10, an RF (Radio Frequency) amplifier 11, a spindle motor 12, a servo mechanism 13, a pickup servo circuit 14, and a content. A data decoding unit 15, a decoding unit 16, a control data decoding unit 17, a spindle servo circuit 18, an external output terminal 60, a system controller 20, a memory 21, an operation unit 40, and a display unit 50. Prepare.

  The optical pickup 10 is for reading content data and control data from the optical disc 100, and includes a semiconductor laser device, various lenses, an actuator, and the like. More specifically, the optical pickup 10 irradiates the optical disc 100 with the laser beam LB with a predetermined power. Further, a PD (Photo Detector) sensor for receiving reflected light of the laser beam LB from the optical disc 100 is provided, and the received reflected light is output to the RF amplifier 11 as a read signal.

  The optical pickup 10 is configured to be movable in the radial direction of the optical disc 100 or the like according to a tracking error signal by an actuator, a slider, etc. (not shown) driven by the control of the servo mechanism 13. In addition, the focus of the laser beam LB is changed according to the focus error signal under the control of the servo mechanism 13 so that the focus can be controlled.

  The RF amplifier 11 generates an RF signal based on the read signal output from the optical pickup 10, and outputs the generated RF signal to each of the content data decoding unit 15 and the control data decoding unit 17. Further, the RF amplifier 11 uses a focus error signal for controlling the focus when the optical pickup 10 irradiates the optical disc 100 with the laser beam LB based on the read signal output from the optical pickup 10 and the optical pickup 10 is the optical disc. An error signal such as a tracking error signal for controlling tracking when irradiating the laser beam LB to 100 is generated. The generated error signal is output to the pickup servo circuit 14.

  The spindle motor 12 is configured to rotate the optical disc 100 at a predetermined speed while receiving spindle servo from the spindle servo circuit 18.

  The servo mechanism 13 moves the optical pickup 10 in the radial direction of the optical disc 100 based on the tracking servo control signal output from the pickup servo circuit 14. Further, based on the focus servo control signal output from the pickup servo circuit 14, the objective lens included in the optical pickup 10 is moved along the optical axis of the laser beam LB.

  The pickup servo circuit 14 generates a focus servo control signal and a tracking servo control signal for controlling the servo mechanism 13 based on the error signal output from the RF amplifier 11. The generated focus servo control signal and tracking servo control signal are output to the servo mechanism 13. In other words, the servo mechanism 13 is feedback-controlled based on the error signal output from the RF amplifier 11 in order to suppress the occurrence of a focus error or tracking error.

  The content data decoding unit 15 generates a stream signal including a video stream and an audio stream by decoding the RF signal output from the RF amplifier 11. The generated stream signal is output to the speed adjustment unit 19.

  The decoding unit 16 decodes the stream signal and generates a reproduction signal. The generated reproduction signal is output to an external output device such as a display or a speaker via the external output terminal 60, and a video or a video corresponding to the content data recorded on the optical disc 100 at a designated reproduction speed. Played as audio.

  Alternatively, the reproduction signal output from the decoding unit 16 may be configured to output a reproduction signal subjected to the modulation process to an external output device after performing a predetermined modulation process. More specifically, for example, the reproduction signal may be modulated by a sawtooth wave, for example, the reproduction signal may be modulated by a rectangular wave, and, for example, a Doppler effect is generated on the reproduction signal. For example, the playback signal may be modulated with a special waveform simulating a jet sound, or the playback signal may be modulated with a special waveform simulating the sound of a handgun. Alternatively, modulation by various special waveforms preset by the user or the like may be performed. These modulations are preferably performed by a user operating an operation key (not shown) on the operation unit 40.

  The control data decoding unit 17 generates control data for controlling reproduction of content data by decoding the RF signal output from the RF amplifier 11. The control data includes, for example, TOC data recorded in the lead-in area of the optical disc 100, synchronous data included in the stream signal, and subcode including time lapse information when the content data is reproduced. Data and the like are given as one specific example. The generated control data is output to the system controller 20 and used to control the reproduction of the content data.

  The spindle servo circuit 18 detects an error in synchronization data with respect to the rotation speed of the spindle motor 12 instructed by the system controller 20, and feedback-controls the rotation of the spindle motor 12 to suppress the occurrence of the error.

  Of the above-described components, the combination of the optical pickup 10, the RF amplifier 11, the content data decoding unit 15, the decoding unit 16, and the like constitute one specific example of the “reproducing means” in the present invention. .

  The system controller 20 includes a microprocessor (MPU), and centrally controls the operation of the entire optical disc playback apparatus 1 by executing a preset system program (or firmware or the like).

  The memory 21 includes a RAM area for temporarily storing various data necessary for the operation of the optical disc playback apparatus 1, a ROM area for storing a system program for defining the operation of the system controller 20, and the like.

  In addition, an operation unit 40 and a display unit 50 are connected to the system controller 20. Instruction data from various operation keys provided in the operation unit 40 is output to the system controller 20, and the system controller 20 controls the reproduction of content data in accordance with the instruction data. Further, the system controller 20 controls the display operation on the display unit 50.

  The operation unit 40 constitutes one specific example of the “operation device” in the present invention, and includes a jog dial 41, a pulse counter 42, a tempo slider 43, an A / D converter 44, and a display unit 50. Yes.

  The jog dial 41 constitutes a specific example of the “operator” in the present invention, and is a disk-shaped operation key that is rotatable in both directions. When the user or the like operates the jog dial 41 while appropriately changing the rotation direction and rotation speed, forward reproduction and reverse reproduction can be set according to the rotation direction, and further, speakers and headphones can be set according to the rotation speed. It is possible to change the tone and the like of the music played on the.

  Note that the above-described forward reproduction refers to reproducing the content data of the optical disc 100 in the order in which it is recorded, as in the case of reproducing music or the like by rotating an analog record such as LP in the forward direction. Therefore, music or the like is reproduced as a normal sound in response to the jog dial 41 being rotated in the clockwise direction. In this embodiment, forward reproduction is performed even when the jog dial 41 is stopped.

  On the other hand, the above reverse playback is to play back the content data on the optical disc 100 in the reverse order of the recorded order, as in the case of playing music or the like by rotating the analog record in the reverse direction. Say. In other words, music etc. are recorded continuously in analog records (analog recording), so if the analog record is rotated in the reverse direction, the music will be played in the reverse direction, which is different from the original music etc. On the other hand, when the jog dial 41 is rotated counterclockwise, individual content data digitally recorded on the optical disc 100 is reproduced in the reverse order, so that the analog record is reproduced. The pseudo-sound is generated in the same way as when the sound is reproduced in the reverse direction.

  By providing the same function as reverse playback of an analog record in this way, for example, when a user or the like repeatedly rotates the jog dial 41 in a clockwise direction and a counterclockwise direction in a reciprocating direction, a pseudo sound called a so-called scratch sound is generated. (Sounds such as “Cucu” and “Gasha Gassha”) can be generated. When a player called a so-called disc jockey operates the jog dial 41 to generate the above-described scratch sound or the like, it is possible to perform editing for generating rap music or the like using a CD or DVD. .

  The pulse counter 42 detects the rotational speed (or angular velocity) of the jog dial 41 by counting the pulse width (or the number of pulses, etc.) of the pulses generated as the jog dial 41 is rotated. In addition, the rotation direction of the jog dial 41 is detected based on a pulse generated in accordance with the rotation operation of the jog dial 41. The detected rotation direction and rotation speed of the jog dial 41 are output to the system controller 20. As a result, the system controller 20 recognizes the operation amount of the jog dial 41 operated by the user or the like, and performs an effect process or the like corresponding to the operation amount.

  The tempo slider 43 includes, for example, a slider button that can slide in the vertical direction. When the user or the like moves the slider button up and down, the playback speed of the content data can be changed as appropriate. For example, by moving the slider button upward, the content data playback speed is relatively slow, or by moving the slider button downward, the content data playback speed is relatively fast. can do. The movement amount of the slider button is detected as an analog value corresponding to the movement amount and output to the A / D converter 44.

  The A / D converter 44 converts the movement amount of the slider button included in the tempo slider 43 detected as an analog value into a digital value, and then outputs the digital value to the system controller 20. As a result, the system controller 20 can make the playback speed of the content data relatively fast or relatively slow according to the amount of movement of the slider button.

  The display unit 50 displays various information associated with the reproduction of content data. The display unit 50 includes a display panel such as a liquid crystal display or a fluorescent tube, for example, and displays various types of information under the control of the system controller 20.

  As shown in FIG. 2, the appearance of the operation unit 40 includes a jog dial 41, operation buttons 402, a tempo slider 43, and a display unit 50.

  The operation button 402 is a button that can be pressed by the user, and is configured such that the operation of the optical disc playback apparatus 1 can be changed when the user presses the operation button 402. Specifically, the user can instruct to play, fast forward, rewind, pause, start playback from a predetermined cue point, and the like by pressing the operation button 402.

  The display unit 50 displays various types of information according to the reproduction of content data including music. For example, in the upper part of the display unit 50, the track number of the currently reproduced content data, the elapsed time of the currently reproduced content data (ie, the current playback time), and the current optical disk playback device 1 are loaded. The total number of tracks of content data recorded on the optical disc 100 being displayed is displayed. In the example of display shown in FIG. 2, the content data of track number 3 is currently being played back, 1 minute and 15 seconds have elapsed from the start of playback, and further recorded on the optical disc 100 loaded in the optical disc playback apparatus 1. It can be recognized that the total number of tracks in the content data is “16”.

  In the lower part of the display unit 50, the beat density and the like of the content data along the playback time axis are wave-displayed. Alternatively, the signal intensity for each frequency band of the content data currently being reproduced may be wave-displayed.

  Of course, the display content on the display unit 50 shown in FIG. 2 is a specific example, and it is needless to say that various other information may be displayed.

(2) Specific Configuration Next, with reference to FIG. 3 and FIG. 4, a specific configuration related to the jog dial 41 provided in the operation unit 40 according to the present embodiment will be described. FIG. 3 is a plan view conceptually showing the appearance of the operation unit 40 when the jog dial 41 is removed from the operation unit 40 (in other words, the structure that supports the jog dial 41), and FIG. It is a perspective view which shows concretely structures, such as a roller to support.

  As shown in FIG. 3, the jog dial 41 is supported by, for example, nine rollers 411. Each of the nine rollers 411 constitutes a specific example of the “holding member” in the present invention, and is arranged concentrically and at equal intervals, for example. Each of the nine rollers 411 is supported by a roller holding portion 412 constituting a specific example of the “base member” in the present invention. The roller holding unit 412 corresponds to a part of the jog dial holding unit 413.

  As shown in FIG. 4, the roller 411 includes a first roller 4111 constituting a specific example of the “first holding portion” of the present invention and a shaft constituting a specific example of the “second holding portion” of the present invention. 4112a and 4112b.

  The shafts 4112a and 4112b have a diameter smaller than that of the first roller 4111 and are supported by bearings 4121a and 4121b that constitute one specific example of the “first base portion” in the present invention. Thereby, the roller 411 is hold | maintained by the roller holding | maintenance part 412 so that it can rotate.

  The first roller 4111 is in direct contact with the jog dial 41, and the first roller 4111 rotates as the jog dial 41 rotates, and the shaft 4112 a held by the bearing portions 4121 a and 4121 b accordingly. And 4112b also rotate. That is, the bearing portions 4121a and 4121b support the shafts 4112a and 4112b in the direction orthogonal to the rotation axis direction of the roller 411 (in other words, the direction along the normal of the surface of the jog dial 41), and the first roller 4111. However, the jog dial 41 is supported in a direction orthogonal to the rotation axis direction of the roller 411 (in other words, a direction along the normal of the surface of the jog dial 41). Thereby, smooth rotation operation of the jog dial 41 is implement | achieved.

  In addition, it is preferable that there is a predetermined gap between the first roller 4111 and the bearing portions 4112a and 4112b. Thereby, a smoother rotation operation of the jog dial 41 is realized.

  The tips of the shafts 4112a and 4112b (in other words, both ends of the roller 411) have a tapered shape (or a conical shape). However, the tip does not necessarily need to be sharp, and it is sufficient if the tips of the shafts 4112a and 4112b have a diameter smaller than that of the portion other than the tips of the shafts 4112a and 4112b.

  The roller holding portion 412 further includes plate-like resin springs 4122a and 4122b so as to be adjacent to or close to the tips of the shafts 4112a and 4112b. The resin springs 4122a and 4122b constitute one specific example of the “second base portion” and the “elastic member” in the present invention, and when a force is applied in the direction along the rotation axis direction of the roller 411, It is configured to bend with the contact point with the roller holding portion 412 as a fulcrum.

  Further, it is preferable that there is a predetermined gap between the tips of the second rollers 4112a and 4112b and the resin springs 4122a and 4122b.

  Because of having such a configuration, when the roller 411 moves in the direction along the rotation axis direction of the roller 411, the tip of the shaft 4112a or 4112b collides with the resin spring 4122a or 4122b. Hereinafter, description will be given with respect to an aspect when the roller 411 moves in a direction along the rotation axis direction of the roller 411 with reference to FIGS. 5 and 6. FIG. 5 is a plan view conceptually showing the state of the roller 411 and the roller holding portion 412 when the roller 411 is not moving in the direction along the rotation axis direction of the roller 411. These are the top views which show notionally the mode of the roller 411 and the roller holding | maintenance part 412 when the roller 411 moves to the direction along the rotating shaft direction of the roller 411.

  As shown in FIG. 5, when the roller 411 does not move in the direction along the rotation axis direction of the roller 411, the tips of the shafts 4112a and 4112b are not in contact with the resin springs 4122a and 4122b. The first roller 4111 is not in contact with the bearing portions 4121a and 4121b. For this reason, the roller 411 rotates smoothly with the rotation operation of the jog dial 41, and no noise is generated with the rotation operation of the jog dial 41.

  As shown in FIG. 6, when the roller 411 moves in a direction along the rotational axis direction of the roller 411 (more specifically, the left side in FIG. 6), the tip of the shaft 4112b is moved to the resin spring 4122b. collide. At this time, the resin spring 4122b bends due to the elasticity of the resin spring 4122b, and softens the impact of the collision with the shaft 4112b. In other words, the resin spring 4122b suppresses the rapid movement of the roller 411 along the rotation axis direction of the roller 411.

  As a result, even if the tip of the shaft 4112b and the resin spring 4122b collide, noise generated by the collision can be relatively reduced or eliminated. In other words, the noise generated when the roller 411 moves in the direction along the rotation axis direction of the roller 411 can be relatively reduced or eliminated. For this reason, when the user operates the jog dial 41, generation | occurrence | production of an unnecessary noise can be suppressed and the advantage that an unpleasant impression is not given to the user who is operating the jog dial 41 can be enjoyed.

  Assume that the roller holding portion 412 does not include the resin spring 4122b. At this time, when the roller 411 moves in a direction along the rotation axis direction of the roller 411, the first roller 4111 which is a rigid body collides with the bearing portion 4121a or 4121b which is a rigid body. For this reason, the noise generated when the roller 411 moves in the direction along the rotation axis direction of the roller 411 becomes a relatively large noise. This is not preferable because it may give an unpleasant impression to the user operating the jog dial 41. However, according to the present embodiment, it is possible to enjoy a great advantage that noise can be relatively reduced or eliminated.

  In addition, it is not necessary to apply lubricating oil such as grease between the shafts 4112a and 4112b and the bearings 4121a and 4121b in order to absorb or reduce the impact of the collision of the roller 411. For this reason, the burden at the time of manufacturing the operation part 40 can be reduced. Furthermore, it is possible to eliminate the risk of inconvenience such as defective contact due to the lubricating oil such as grease flowing out.

  However, in order to enjoy the advantage of reducing noise, lubricating oil such as grease may be applied between the shafts 4112a and 4112b and the bearing portions 4121a and 4121b, for example.

  In addition, since the tips of the shafts 4112a and 4112b have a tapered shape, even if the tips of the shafts 4112a and 4112b collide with the resin springs 4122a and 4122b, the shafts 4112a and 4112b have a large resistance to the rotation of the roller 411. There is no resistance. Therefore, the smooth rotation of the roller 411 can be maintained, and as a result, the above-described various benefits can be enjoyed without making the user operating the jog dial 41 feel uncomfortable.

  However, if the contact area with the resin springs 4122a and 4122b is relatively small, the tip ends of the shafts 4112a and 4112b are not necessarily tapered (or conical, and are substantially points with the resin springs 4122a and 4122b. (The shape of contact) may not be present. In other words, the tips of the shafts 4112a and 4112b may have a shape having a smaller diameter (or thinner) than the portion other than the tips. In summary, the tip ends of the shafts 4112a and 4112b may have any shape as long as they do not contact the resin springs 4122a and 4122b only to the extent that the smooth rotation of the roller 411 is not hindered.

  Further, the shafts 4112a and 4112b may have a constant thickness. In other words, that is, the contact area between the tip ends of the shafts 4112a and 4112b and the resin springs 4122a and 4122b may be relatively large. Even if comprised in this way, the effect corresponding to the reduction of the noise mentioned above can be enjoyed.

  In the above-described embodiment, the resin springs 4122a and 4122b are integrally formed with the roller holding portion 412. That is, the resin springs 4122 a and 4122 b are configured to include the same material as that of the roller holding portion 412. By comprising in this way, the roller holding | maintenance part 412 provided with the resin springs 4122a and 4122b can be manufactured comparatively easily.

  However, the resin springs 4122 a and 4122 b may include a material different from that of the roller holding portion 412. With this configuration, the elastic coefficients of the resin springs 4122a and 4122b can be arbitrarily set. As a result, the degree of noise generation reduction and the degree of rigidity of the resin springs 4122a and 4122b can be arbitrarily set. That is, the design range of the operation unit 40 can be expanded.

  Furthermore, in addition to or instead of using the plate-shaped resin springs 4122a and 4122b described above, for example, a plate-shaped metal spring, a coil spring, various rubbers, or the like may be used. In addition to these, noise generated when the roller 411 moves in the direction along the rotation axis direction of the roller 411 (in other words, the roller 411 in the direction along the rotation axis direction of the roller 411). Those having a member, shape or the like that can soften the impact of the collision caused by the movement of the plate can be used in the operation unit 40 according to the present embodiment in addition to or instead of the plate-like resin springs 4122a and 4122b. Needless to say. That is, if it is a member (namely, elastic member) provided with elasticity with respect to movement of roller 411, it is used for operation part 40 concerning this example in addition to or instead of plate-like resin springs 4122a and 4122b. Needless to say, you can.

(3) Modification Next, with reference to FIG. 7, the structure of the roller etc. which support the jog dial 41 which concerns on a modification is demonstrated. FIG. 7 is a plan view specifically showing the configuration of a roller or the like that supports the jog dial 41 according to the modification.

  As illustrated in FIG. 7, the roller 421 according to the modification includes a first roller 4211 and shafts 4212a and 4212b, similarly to the roller 411 described above. Moreover, the roller holding part 422 according to the modification includes bearing parts 4221a and 4221b, similarly to the roller holding part 412 described above.

  The roller 421 according to the modification particularly includes second rollers 4213a and 4213b that constitute one specific example of the “third holding member” in the present invention. The 2nd rollers 4213a and 4213b are comprised including the elastic member provided with elasticity itself. In particular, the second rollers 4213a and 4213b preferably include an elastic member at a position adjacent to or close to the bearing portions 4221a and 4221b (in other words, a position that collides with the bearing portions 4221a and 4221b). Alternatively, the entire second rollers 4213a and 4213b may be configured to include an elastic member.

  By including the second rollers 4213a and 4213b including such an elastic member, when the roller 421 moves in the direction along the rotation axis direction of the roller 421 (more specifically, the left side in FIG. 7). The second roller 4213b collides with the bearing portion 4212b. At this time, since the second roller 4213b includes an elastic member, the impact of the collision between the second roller 4213b and the bearing portion 4221b is reduced. In other words, the elastic member included in the second roller 4213b suppresses the rapid movement of the roller 421 along the rotation axis direction of the roller 421.

  Thereby, the noise which arises when the 2nd roller 4213b and the bearing part 4221b collide can be reduced relatively or can be eliminated. In other words, the noise generated by the roller 421 moving in the direction along the rotation axis direction of the roller 421 can be relatively reduced or eliminated. For this reason, when the user operates the jog dial 41, generation | occurrence | production of an unnecessary noise can be suppressed and the advantage that an unpleasant impression is not given to the user who is operating the jog dial 41 can be enjoyed. Similarly, according to the roller 421 and the roller holding part 422 according to the modified example, the advantages realized by the above-described roller 411 and the roller holding part 412 can also be suitably enjoyed.

  Moreover, you may combine suitably the structure of the roller 411 and the roller holding part 412 mentioned above, and the structure of the roller 421 and the roller holding part 422 which concern on a modification. It goes without saying that the various benefits described above can be enjoyed even in such a combination.

  The present invention is not limited to the above-described embodiments, and can be appropriately changed without departing from the gist or concept of the invention that can be read from the claims and the entire specification. In addition, the playback device is also included in the technical scope of the present invention.

  The operation device and the playback device according to the present invention can be used for an operation device such as a jog dial provided in a DJ device or the like, and a playback device including a DJ device or the like.

Claims (15)

A disk-like controller that can be rotated;
At least one holding member that rotates with the rotation of the operation element while holding the operation element rotatably;
An operation device comprising: a base member that rotatably holds the holding member and includes an elastic member at a position adjacent to or close to both ends of the holding member in a rotation axis direction of the holding member. The holding member includes a first holding portion that contacts the operating element, and a second holding portion that sandwiches the first holding portion and contacts the base member and has a smaller diameter than the first holding portion. And
The operating device according to claim 1, wherein the base member includes the elastic member at a position adjacent to or close to the second holding portion in a rotation axis direction of the holding member. The holding member includes a first holding portion that contacts the operation element, and a second holding portion that sandwiches the first holding portion and contacts the base member and has a diameter smaller than that of the first holding portion. And
The base member holds the second holding portion in a direction along the rotation axis direction of the holding member, and a first base portion that holds the second holding portion in a direction orthogonal to the rotation axis direction of the holding member. And a second base portion that
2. The operating device according to claim 1, wherein the second base portion includes the elastic member at a position adjacent to or close to the second holding portion in a rotation axis direction of the holding member. .   2. The operating device according to claim 1, further comprising a gap having a predetermined size between both ends of the holding member in the rotation axis direction of the holding member and the elastic member.   2. The operating device according to claim 1, wherein both ends of the holding member in the direction of the rotation axis of the holding member have a smaller diameter than portions other than the both ends.   The operating device according to claim 1, wherein the elastic member includes a plate-like resin that can be bent along a rotation axis direction of the holding member.   The operating device according to claim 1, wherein the elastic member includes the same material as the base member.   The operating device according to claim 1, wherein the elastic member includes a material different from that of the base member. A disk-like controller that can be rotated;
At least one holding member that rotates with the rotation of the operation element while holding the operation element rotatably;
A base member for rotatably holding the holding member,
The operation device, wherein the holding member includes an elastic member at a position adjacent to the base member in a rotation axis direction of the holding member. The holding member includes a first holding portion that contacts the operation element, a second holding portion that sandwiches the first holding portion, contacts the base member, and has a smaller diameter than the first holding portion, A third holding portion sandwiched between each of the first holding portion and the second holding portion,
The operating device according to claim 9, wherein the third holding portion includes the elastic member at a position adjacent to or close to the base member in a rotation axis direction of the holding member. The holding member includes a first holding portion that contacts the operation element, a second holding portion that sandwiches the first holding portion, contacts the base member, and has a smaller diameter than the first holding portion, A third holding portion sandwiched between each of the first holding portion and the second holding portion,
The base member is in contact with the second holding portion in a direction perpendicular to the rotation axis direction of the holding member, and in contact with the third holding portion in a direction along the rotation axis direction of the holding member. And a second base portion that
The operating device according to claim 9, wherein the third holding portion includes the elastic member at a position adjacent to or close to the second base portion in a rotation axis direction of the holding member. .   The operating device according to claim 9, wherein the elastic member includes the same material as the holding member.   The operating device according to claim 9, wherein the elastic member includes a material different from that of the holding member. An operating device according to claim 1;
A playback device comprising: playback means for playing back predetermined data in accordance with the operation content of the operation device. The operating device according to claim 9,
A playback device comprising: playback means for playing back predetermined data in accordance with the operation content of the operation device.

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