JP4530952B2 - Information equipment - Google Patents

Description

  The present invention relates to information equipment that handles disc-shaped media such as DVDs and CDs.

  Information devices such as AV devices and personal computers often read information from or record information on a disc-shaped medium such as a DVD or CD. In loading / unloading of a disk-shaped medium, recently, a slot-in system is being used instead of a tray system.

The slot-in method has a merit that the mechanism can be simplified compared to the tray method, but there is a concern that dust, insects, etc. may enter from the slot. In order to cope with this problem, Patent Document 1 proposes a structure in which the slot is covered with a sliding door.
Japanese Patent Laid-Open No. 11-11222 (page 3-4, FIG. 1-8)

  In the apparatus described in Patent Document 1, a link mechanism is used to translate an elongated slide door. Although the link mechanism is simple, in order to accurately translate the sliding door, the accuracy of the component dimensions and the high assembly accuracy are required. Further, there is a drawback that the parallelism easily goes wrong when wear progresses after long-term use.

  The present invention has been made in view of the above problems, and an object of the present invention is to make the movement mechanism of the slide type shutter covering the medium slot accurate so that the movement hardly occurs even after long-term use. To do.

  (1) In order to achieve the above object, an information device according to the present invention is an information device in which a slide type shutter that covers a medium slot is provided on the front surface of the device main body. In addition, a plurality of racks extending in the shutter slide direction are formed in parallel with a distance from each other, and on the other side, a parallel feed shaft having a plurality of pinions engaged with the plurality of racks is supported. A click that fits the slidable element and urges the directional element in one direction by a spring, and has a peak on the side on which the rack is formed, on which the pallet should get over when the shutter slides. The feature is that a motion generating member is arranged.

  According to this configuration, since the parallel feed shaft meshes with the pinion at the same time with respect to a plurality of racks formed in parallel at intervals, each part of the shutter moves synchronously, and the shutter is accurate. And move in parallel while maintaining the same posture. Since the rack and pinion mechanism is not as affected by wear as the link mechanism, the movement is less likely to occur even when used for a long time. In addition, the combination of the knuckle and the click motion generating member can produce a crisp movement in the shutter. Furthermore, since the support of the joint element is performed by a shaft to which the pinion is fixed, the mechanism for supporting the joint element in a slidable manner can be made simple and robust.

  (2) Moreover, this invention is the information apparatus of the said structure, The said spring is a compression coil spring surrounding the said shaft, It is characterized by the above-mentioned.

  According to this configuration, the selection and installation of the spring is simple, and since the shaft passes through the compression coil spring, the spring does not buckle even if it is compressed. The configuration can be realized.

  (3) Further, according to the present invention, in the information device having the above-described configuration, a slide guide portion that causes mutual contact by an urging force of the spring is provided between the device main body and the shutter.

  According to this configuration, not only the engagement of the rack and the pinion regulates the attitude of the shutter, but also the slide guide part regulates the attitude of the shutter, so the backlash generated in the engagement part causes the rack and pinion to engage each pair. Even if the pair is not strictly synchronized, the shutter can always be kept in the correct posture without being influenced by it.

  According to the present invention, by adopting a rack and pinion mechanism, the shutter can be accurately fed in parallel, and it is possible to make it difficult for the shutter movement to be out of order even when used for a long time. You can also move the shutter crisply by clicking motion.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIGS. 1 and 2 are schematic front views showing different states, FIG. 3 is a front view showing a cross section of the main part, FIG. 4 is a cross-sectional view taken along the line AA in FIG. 3, and FIG. 3 is a cross-sectional view similar to FIG. 5 corresponding to FIG. 7 and FIG. 8 is a front view similar to FIG. 3 for explaining the shutter operation.

  The information device 1 is an in-vehicle AV device, and a horizontal slot 3 is formed in the front portion of the device main body 2 for feeding and discharging a disk-shaped medium such as a DVD or CD. The slot 3 is combined with a sliding shutter 10 that covers the slot 3 so as to be freely opened and closed. Hereinafter, the structure of the shutter 10 and its operation mechanism will be described.

  Raised portions 4L, 4R extending in the vertical direction are formed at the left and right ends of the front portion of the device body 2, and the shutter 10 is disposed between the raised portions 4L, 4R. The shutter 10 is a front-shaped rectangular synthetic resin molded product having a vertical height and a horizontal width sufficient to cover the slot 3 with a space, and projecting pieces 11L and 11R that enter the raised portions 4L and 4R from the left and right ends. It protrudes (see FIGS. 3 and 4). The projecting piece 11L is integrally formed with the shutter 10, and the projecting piece 11R is formed by fixing another part made of a thin metal plate to the back surface of the shutter 10. Windows 5L and 5R are formed on the side faces of the raised portions 4L and 4R toward the center of the device, and when the windows 5L and 5R receive the projecting pieces 11L and 11R, the shutter 10 is slidable up and down and forward. It is supported not to get out. The heights of the windows 5L and 5R determine the upper and lower limits of the slide stroke of the shutter 10.

  On the rear surface of the shutter 10, a plurality of racks extending in the shutter slide direction are formed in parallel at intervals. In the embodiment, the number of racks is two, and the rack 12L is integrally molded at a location near the left end of the shutter 10, and the rack 12R is integrally molded at a location near the right end of the shutter 10. Correspondingly, on the front surface of the apparatus main body 2, a parallel feed shaft 14 to which pinions 13L and 13R meshing with the racks 12L and 12R are fixed is supported. The front part of the apparatus main body 2 is made of synthetic resin, and has a horizontally long recess 6 that accommodates the shaft 14 and the pinions 13L and 13R. In the recess 6, a plurality of ribs 7 each having a recess 7 a (see FIG. 4) that receives the shaft 14 at the end edge are arranged at appropriate intervals. The shaft 14 is fitted into the recess 7a, and the shutter 10 is overlapped from the outside and the racks 12L and 12R are engaged with the pinions 13L and 13R, whereby the attachment of the shaft 14 and the engagement of the rack and pinion are performed at once. Needless to say, the number of teeth and the pitch circle diameter of the pinions 13L and 13R are the same.

  A click motion mechanism 15 is provided on the shutter 10 in order to move the shutter 10 crisply between the closed state and the opened state of the slot 3. The main components of the click motion mechanism 15 are a joint motion 16 and a click motion generating member 17.

  The joint 16 is a base 16a that is slidably fitted to the shaft 14, and a pin 16b is erected. The pin 16b is urged in one direction (rightward in the configuration in the figure) by a spring, and the pin 16b is a click motion generating member. Press against 17. The spring is a compression coil spring 18 that surrounds the shaft 14, and is inserted between a sleeve 19 fixed to the shaft 14 and the joint slider 16.

  The click motion generating member 17 is a separate synthetic resin plate fixed to the back surface of the shutter 10, and the side edge of the side contact with the joint element 16 protrudes toward the joint element 16 to form a peak portion 17 a. ing. The apex of the mountain portion 17a draws an arc. The shaft 14 is pushed to the left side by the elastic force of the compression coil spring 18 by the contact of the node slider 16 with the peak portion 17 a, and the sleeve 19 is settled at a position where it hits the rib 7. Thereby, the position of the axial direction of the shaft 14 is determined.

  When the barb 16 rotates about the shaft 14, the pin 16 b may be disengaged from the click motion generating member 17. Therefore, a roller 16c is mounted on the base 16a on the opposite side of the pin 16a, and this roller 16c is inserted into a guide groove 8 (see FIG. 4) formed in the bottom of the recess 6 along the axial direction of the shaft 14. Engagement is made to prevent rotation of the articulator 16.

  Between the apparatus main body 2 and the shutter 10, a slide guide portion 20 is provided that causes mutual contact by the force of the compression coil spring 18. The slide guide portion 20 is composed of a guide groove 21 formed in the apparatus main body 2 and a pair of rollers 22 attached to the projecting piece 11R and entering the guide groove 21 and hitting the right edge thereof. The guide groove 21 extends in the sliding direction of the shutter 10, and the right edge thereof is exactly perpendicular to the longitudinal direction of the slot 3. The pair of rollers 22 are arranged at intervals in the vertical direction, and the line connecting the outer peripheral surfaces thereof exactly matches the sliding direction of the shutter 10.

  The operation of the shutter 10 is as follows. 1, 3, and 5 show a state in which the shutter 10 closes the slot 3. The knuckle element 16 hits the downward slope of the mountain portion 17a of the click motion generating member 17, and an upward component force acts on the click motion generating member 17. By this upward component force, the shutter 10 is maintained at the upper limit position of the slide stroke, that is, at the position where the projecting pieces 11L and 11R hit the upper ends of the windows 5L and 5R.

  When opening the slot 3, put a finger on the shutter 10 and pull it down. Then, as can be seen in FIG. 6, the click motion generating member 16 moves down against the pressure of the compression coil spring 17 while excluding the joint 16 from the left side. When the pin 16a climbs over the peak of the peak portion 17a, the compression coil spring 18 releases the energy accumulated so far and pushes the joint 16 to the right. As a result, the shutter 10 immediately falls to the lower limit position shown in FIGS. 2, 7 and 8, that is, the position where the projecting pieces 11L and 11R hit the lower ends of the windows 5L and 5R, and the slot 3 is exposed. At this time, the node mover 16 hits the upward slope of the mountain portion 17a, and a downward component force acts on the click motion generating member 17. By this downward component force, the shutter 10 is maintained at the lower limit position of the slide stroke.

  The guide groove 21 constituting the slide guide portion 20 and the pair of rollers 22 are always in contact with each other by the force of the compression coil spring 18 to regulate the posture of the shutter 10. For this reason, even if the engagement of each pair of rack and pinion is not strictly synchronized between the pairs due to backlash generated in the engagement portion, the shutter can always be maintained in the correct posture without being influenced by it.

  In the present embodiment, the shaft 14 having the pinions 13L and 13R fixed thereto is arranged on the device body 2 side, and the racks 12L and 12R are formed on the shutter 10. However, this is reversed, and the pinions 13L and 13R are arranged on the shutter 10 side. The rack 14L can be formed on the device main body 2 side. Further, although the horizontally long shutter 10 is combined with the horizontal slot 3, a configuration in which the slot 3 is made vertical and the vertically long shutter 10 is combined with this is also possible.

  Although the embodiments of the present invention have been described above, the scope of the present invention is not limited to these embodiments, and various modifications can be made without departing from the spirit of the invention.

    The present invention can be widely used in information equipment that handles disc-shaped media.

Schematic front view of information equipment Schematic front view of different states Front view of the main section AA sectional view of FIG. BB sectional view of FIG. A front view similar to FIG. 3 for explaining the shutter operation A front view similar to FIG. 3 for explaining the shutter operation Sectional view similar to FIG. 5 corresponding to FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Information apparatus 2 Apparatus main body 3 Slot 10 Shutter 11L, 11R Protrusion piece 12L, 12R Rack 13L, 13R Pinion 14 Shaft 15 Click motion mechanism 16 Articulator 17 Click motion production | generation member 17a Mountain part 18 Compression coil spring 20 Slide guide part 21 Guide groove 22 Roller

Claims (3)

In information equipment provided with a sliding shutter covering the medium slot on the front of the equipment body,
A plurality of racks extending in the shutter slide direction are formed in parallel with each other on either the back surface of the shutter or the front surface of the device main body, and a plurality of pinions engaging with the plurality of racks are fixed to the other. A shaft for parallel feeding is pivotally supported, and a nodule is slidably fitted to the shaft, and the nodule is urged in one direction by a spring, and a shutter is provided on the side where the rack is formed. An information device comprising a click motion generating member having a mountain portion on which the joint rod should be overcome when sliding. The information device according to claim 1, wherein the spring is a compression coil spring surrounding the shaft. The information device according to claim 1, wherein a slide guide portion that causes mutual contact by an urging force of the spring is provided between the device main body and the shutter.

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