JP5202771B2 - Panel drive device - Google Patents

Description

  The present invention relates to a panel driving device having a friction mechanism for adding sliding resistance to a slide base.

2. Description of the Related Art Conventionally, there is a panel drive device that moves a slide member (slide base) connected to a lower end fulcrum of a panel back and forth to rotate the panel to open and close. This panel drive device is provided with a friction mechanism for suppressing rattle noise on the slide member (see, for example, Patent Document 1).
The friction mechanism disclosed in Patent Document 1 includes a cylindrical body fixed to a main body device and engaged with a long hole of a slide member, and a leaf spring placed on the slide member via a spacer. doing. And the both ends of a leaf | plate spring are fixed to a cylindrical body with a screw | thread, and the leaf | plate spring is press-contacted to the thick part formed in the spacer center. Thereby, sliding resistance can be added with respect to a slide member, rattle noise can be suppressed, and the rotation of the panel by rattle noise can be suppressed.

JP 2004-210191 A

The conventional panel driving device is configured to press the slide member from above with a sliding resistance that is strong enough to suppress the rotation of the panel by a plate spring that is screwed. Therefore, when the height of the slide member is regulated by the guide member, there is a problem that the slide member is deformed when the height between the guide member and the cylindrical body varies. .
Further, since the cylindrical body is fixed, the cylindrical body is scraped when the metal slide member slides, and a gap is generated between the cylindrical body and the long hole. Thereby, since the slide member slides while twisting, there was a problem that the panel turned slightly diagonally.

  The present invention has been made to solve the above-described problems. Even when the heights of the slide member and the friction mechanism vary, the slide member can be prevented from being deformed and the slide member can be smoothly moved. It is an object of the present invention to provide a panel driving device capable of suppressing rattle noise while obtaining stable sliding resistance without disturbing the above.

  The panel driving device according to the present invention includes a friction mechanism that adds sliding resistance to the slide base, and the friction mechanism is attached to the guide pin and the guide pin, and is engaged with the guide groove. A collar having a tapered portion, a collar urging spring for urging the collar toward the slide base, a spacer engaged with the collar from the side facing the collar urging spring via the slide base, and the collar engaging And a leaf spring that urges the spacer toward the slide base.

  According to the present invention, since it is configured as described above, even when there is a variation in the height of the slide base and the friction mechanism, the slide base is prevented from being deformed and stable without disturbing the smooth movement of the slide base. Rattle noise can be suppressed while obtaining the sliding resistance.

It is a perspective view which shows the external appearance of the panel drive device which concerns on Embodiment 1 of this invention. It is a perspective view from the back side which shows the main components of the panel drive device concerning Embodiment 1 of this invention. It is a perspective view which shows the structure of the friction mechanism in Embodiment 1 of this invention. It is a disassembled perspective view which shows the structure of the friction mechanism in Embodiment 1 of this invention. It is a figure which shows the sliding force added to a slide base when a vertical vibration is added to the panel drive device which concerns on Embodiment 1 of this invention, (a) It is a figure which shows the case of a panel accommodation state, (b) Panel It is a figure which shows the case of an open state. It is a figure which shows the attachment to the spacer of the leaf | plate spring in Embodiment 1 of this invention. It is a figure which shows the change of the sliding resistance by the friction mechanism in Embodiment 1 of this invention, (a) It is a figure which shows the case of a panel accommodation state, (b) It is a figure which shows the case of a panel rotation state. (C) It is a figure which shows the case of a panel open state.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
Embodiment 1 FIG.
As shown in FIG. 1, the panel drive unit 1 is provided with a panel housing 3 on the end surface (for example, the front surface) of the main body device 2. The panel storage unit 3 is provided with a media insertion slot 4 through which a recording medium such as a music CD (Compact Disc) or DVD (Digital Versatile Disc) is taken in and out of the main unit 2.
The panel housing 3 is provided with a panel 5 that can be opened and closed on the side opposite to the main device 2 side (for example, in front of the main device 2). In the panel storage state, the panel 5 is stored upright in the panel storage unit 3 as shown in FIG. On the other hand, when the recording medium is taken in and out of the main unit 2, as shown in FIGS. 1 and 5B, the panel 5 is opened to expose the media insertion opening 4 (panel open state).

Next, a mechanism for opening and closing the panel 5 in the panel drive device 1 as described above will be described with reference to FIGS. 2 to 5, the chassis 9 of the main device 2 is not shown.
As shown in FIG. 2, engagement protrusions 5 a and 5 b are formed on the upper and lower portions of both side surfaces of the panel 5. In addition, a U-shaped slide base 6 is provided on the back surface of the panel 5 so as to be movable in the panel mounting direction with respect to the main body device 2 (one end can be projected and retracted from the panel housing portion 3). As shown in FIGS. 2 and 3, an engagement hole 6a is formed at one end of each side of the slide base 6, and an engagement protrusion (lower fulcrum) 5a is rotatably connected.

  Bending portions 7 are provided outward on both sides of the slide base 6. On the other hand, resin guide members 8 are fixed to the chassis 9 on the bottom surface of the main unit 2 on the outer sides of both sides of the slide base 6. A first guide groove 10 extending in the front-rear direction is formed on the inner surface of the guide member 8. The bent portion 7 is engaged with the first guide groove 10. Thereby, the height direction of the slide base 6 is regulated with respect to the bottom surface of the main body device 2.

  Further, second guide grooves 11 extending in the front-rear direction are formed on the bottom surfaces of both sides of the slide base 6. A friction mechanism 12 fixed to the chassis 9 on the bottom surface of the main device 2 is engaged with the second guide groove 11. The friction mechanism 12 adds sliding resistance to the slide base 6. The sliding resistance by the friction mechanism 12 is set to a value that allows the slide base 6 to move smoothly in the panel rotation state. The friction mechanism 12 also has a function of guiding the second guide groove 11 in the front-rear direction. The detailed configuration of the friction mechanism 12 will be described later.

  Thus, the slide base 6 is driven by the driving force of the electric drive device (not shown) by the engagement of the bending portion 7 with the first guide groove 10 and the engagement of the friction mechanism 12 with the second guide groove 11. It is configured to be movable only in the front-rear direction via the rack gear 13.

  Further, as shown in FIG. 4, a protrusion 14 a that increases the sliding resistance by the friction mechanism 12 is formed on the front end side of both sides of the second guide groove 11 of the slide base 6 in the panel storage state. . Further, on the rear end side of both side portions of the second guide groove 11 of the slide base 6, a protrusion 14 b that increases the sliding resistance by the friction mechanism 12 in the panel open state is formed. The protrusions 14a and 14b increase the thickness of the slide base 6 and increase the reaction force of the friction mechanism 12 due to the leaf spring 28 described later.

Moreover, as shown in FIG. 1, the panel groove | channel 15 extended in the up-down direction is provided in the both inner surface of the panel accommodating part 3. As shown in FIG. An engagement protrusion (upper fulcrum) 5b is slidably engaged with the panel groove 15. Here, the engagement protrusion 5b and the panel groove 15 correspond to the turning mechanism of the present invention.
Here, as shown in FIG. 5A, in the panel storage state, the slide base 6 is located at the retracted position, and the upper fulcrum 5 b of the panel 5 is located at the upper end of the panel groove 15. When the slide base 6 is advanced from this state, the lower fulcrum 5a of the panel 5 is pushed forward by the slide base 6, but the upper fulcrum 5b moves downward along the panel groove 15, so that the panel 5 is moved to the lower fulcrum. It rotates around 5a. Then, as shown in FIG. 5B, when the slide base 6 moves to the advanced position, the upper fulcrum 5b of the panel 5 moves to the lower end of the panel groove 15, and the panel is opened.

Next, the configuration of the friction mechanism 12 will be described.
As shown in FIG. 4, the friction mechanism 12 is provided with a pair of guide pins 16 a and 16 b fixed to the chassis 9 on the bottom surface of the main body device 2. The guide pins 16a and 16b are arranged on the chassis 9 at predetermined positions in the front-rear direction (positions facing collar insertion holes 23a and 23b formed on the front and rear end sides of the spacer 23 described later). Holes at both ends of a collar urging spring 17 fixed to the chassis 9 are inserted into the guide pins 16a and 16b, respectively, and metal collars 18a and 18b are guided above the collar urging spring 17. It is rotatably attached to the pins 16a and 16b. The collar urging spring 17 is an urging force that can absorb variations in height between the slide base 6 and the collars 18a and 18b, the height of which is regulated by the first guide groove 10, and the collars 18a and 18a. 18b is urged toward the slide base 6 side.

As shown in FIGS. 4 and 7, the collars 18 a and 18 b include a cylindrical portion 19 having a slightly smaller diameter than the width of the second guide groove 11 and a groove portion 20 formed in the upper portion of the cylindrical portion 19 along the circumferential direction. And a tapered portion 21 provided at the lower portion of the cylindrical portion 19 and having a diameter that increases downward, and a bottom portion 22 provided at the lower portion of the tapered portion 21 and having a diameter larger than the width of the second guide groove 11. It is configured.
The collars 18a and 18b are inserted into the second guide groove 11 from below, and the lower side of the inner peripheral edge of the second guide groove 11 and the tapered portion 21 are engaged.

A resin spacer 23 is provided on the upper surface of the slide base 6. On the front and rear end sides of the spacer 23, collar insertion holes 23a and 23b are formed. The collar insertion holes 23a and 23b have a slightly larger diameter than the cylindrical portion 19 of the collars 18a and 18b, and are inserted into the cylindrical portions 19 of the collars 18a and 18b protruding from the slide base 6 to the upper surface.
A positioning projection 24 for attaching a later-described leaf spring 28 is formed at the central portion of the upper surface of the spacer 23. Further, on the front and rear end sides of the upper surface of the spacer 23, convex portions 25 and 26 for preventing the leaf spring 28 from rotating around the XY plane (see FIG. 6C) due to the rotation of the collar 18a (18b) are formed. ing. Further, as shown in FIG. 7, a sliding convex portion 27 that contacts the slide base 6 is formed around the collar insertion holes 23 a and 23 b on the lower surface of the spacer 23.

  A leaf spring 28 is attached to the upper portion of the spacer 23 and is engaged with and fixed to the groove portion 20 of each collar 18a, 18b. The leaf spring 28 biases the spacer 23 toward the slide base 6 side. Details of the configuration of the leaf spring 28 will be described later.

  In this manner, the slide base 6 is sandwiched between the tapered portions 21 of the collars 18a and 18b and the spacer 23, and the spacer 23 is urged toward the slide base 6 by the leaf spring 28, so that the slide base 6 is vertically moved. Energizing force can be given. Therefore, an excessive load is not applied in one direction of the slide base 6, and the slide base 6 is hardly deformed, and a stable sliding resistance can be obtained.

Further, since the front and rear end portions of the spacer 23 are attached to the pair of collars 18a and 18b, the spacer 23 can be prevented from rotating around the XY plane by the rotation of the collar 18a (18b). Therefore, friction loss due to the rotation of the spacer 23 can be eliminated, and a stable sliding resistance can be obtained.
Further, since the slide projections 27 that contact the slide base 6 are provided around the collar insertion holes 23a and 23b of the spacer 23, the slide base 6 is fixed by the tapered portions 21 and the slide projections 27 of the collars 18a and 18b. It can be securely sandwiched in the vertical direction. Therefore, it is possible to provide an efficient mechanism in which the holding force (sliding resistance) with respect to the slide base 6 is difficult to escape.

Next, the configuration of the leaf spring 28 will be described.
As shown in FIGS. 4 and 7, the leaf spring 28 is formed with first and second tongue portions 29 a and 29 b that urge the spacer 23 toward the slide base 6. The first tongue portion 29 a is formed from the front end side to the rear side of the leaf spring 28, and the tip end portion is in contact with the vicinity of the center of the spacer 23. The second tongue piece portion 29 b is formed from the right end side of the rear end side of the leaf spring 28 toward the left end side (perpendicular to the first tongue piece portion 29 a), and the tip portion is the center of the spacer 23 in the left-right direction. It is in contact with the position deviated from. In this way, by setting the second tongue piece portion 29b to be formed in the left-right direction, it is possible to suppress the leaf spring 28 from rotating around the Y axis (see FIG. 6C) composed of the collars 18a and 18b. And a stable spring force can be obtained.
Moreover, the 1st tongue piece part 29a is formed long with respect to the 2nd tongue piece part 29b. Thereby, the spring load and the spring multiplier can be changed before and after the leaf spring 28.

Further, the leaf spring 28 is provided with an L-shaped bent portion 30 whose rear end side can be elastically deformed in the left-right direction. Further, a key-shaped hole 31 with which the groove portion 20 of the collar 18a is engaged is formed on the front end side of the leaf spring 28. The key hole 31 has a large diameter portion 31a that is slightly larger than the diameter of the cylindrical portion 19 of the collar 18a, and a small diameter portion 31b that is smaller than the diameter of the cylindrical portion 19 of the collar 18a and slightly larger than the diameter of the groove portion 20. It consists of and.
On the other hand, an arc groove 32 is formed on the rear end side of the leaf spring 28 to engage with the groove portion 20 of the collar 18b. The arc groove 32 has an arc shape in which the rear right end side is open, and is formed to have a diameter smaller than the diameter of the cylindrical portion 19 of the collar 18 b and slightly larger than the groove portion 20.

  Furthermore, a positioning hole 33 that engages with the positioning convex portion 24 is formed on the distal end side of the first tongue piece portion 29a. Further, a slit-like engagement hole 34 that engages with the convex portion 25 is formed near the center of the first tongue piece portion 29 a, and an engagement hole 35 that engages with the convex portion 26 near the arc groove 32. Is formed.

Next, the attachment of the leaf spring 28 configured as described above to the spacer 23 will be described with reference to FIG.
In attaching the leaf spring 28 to the spacer 23, first, as shown in FIG. 6A, the key hole 31 is engaged with the collar 18a. At this time, after inserting the large diameter portion 31a into the collar 18a, the key spring 31 is engaged with the collar 18a by sliding the leaf spring 28 toward the small diameter portion 31b. Then, the positioning tongue 24 and the positioning hole 33 are engaged to position the first tongue piece 29a. At this time, since the engagement hole 34 slides while being guided by the convex portion 25, the leaf spring 28 can move only in one direction, and the workability of attaching the leaf spring 28 can be improved.

  Next, as shown in FIG. 6B, the L-shaped bent portion 30 is elastically deformed in the A direction so that the open portion of the arc groove 32 and the groove portion 20 of the collar 18b face each other. At this time, since the first tongue piece portion 29a is fixed to the spacer 23 by the engagement between the positioning convex portion 24 and the positioning hole 33, only the L-shaped bent portion 30 can be elastically deformed. Can be improved.

Next, as shown in FIG. 6C, the L-shaped bent portion 30 is returned to the original position, and the arc groove 32 is engaged with the collar 18b. Then, the convex part 26 and the engagement hole 35 are engaged.
By attaching the leaf spring 28 to the spacer 23 in this way, the leaf spring 28 can be fixed without using a plurality of fixing members such as screws and E-rings, so that the number of parts can be reduced. Since no special tool is required, workability can be improved.

Further, due to the engagement between the positioning convex portion 24 and the positioning hole 33, the leaf spring 28 does not move relative to the spacer 23 even after the leaf spring 28 is attached, and a stable spring force can be obtained.
Further, when the slide base 6 moves due to the engagement between the engagement holes 34 and 35 formed in the vicinity of the center of the first tongue piece 29a and the vicinity of the arc groove 32 and the projections 25 and 26, the collar 18a (18b) is moved. The deformation of the leaf spring 28 can also be suppressed when a rotational force is applied to the leaf spring 28 by the rotation of).

Next, in the panel drive device 1 configured as described above, a change in sliding resistance by the friction mechanism 12 in each panel state will be described with reference to FIG. In FIG. 7, the convex portion 25, the large diameter portion 31 a of the key-shaped hole 31, and the engagement hole 34 are not illustrated.
First, as shown in FIG. 7B, when the panel driving device 1 is in the panel rotation state, the friction mechanism 12 can smoothly move the slide base 6 with respect to the slide base 6. The sliding resistance is added. At this time, the gap between the spacer 23 and the leaf spring 28 is L.

On the other hand, as shown in FIG. 5A, when vertical vibration F is applied to the panel driving device 1 in the panel storage state, a rotating force Ta is generated at the center of gravity G of the panel 5, and the sliding force Fa1 is applied to the slide base 6. Will be added. Therefore, in order to prevent the slide base 6 from moving due to the slide force Fa1, it is necessary to increase the sliding resistance with respect to the slide base 6 more than the panel rotation state.
Therefore, as shown in FIG. 7A, in the slide base 6 in the panel storage state, the portion facing the collar 18a is thickened by the protrusion 14a, and the front side of the spacer 23 is pushed upward. Thereby, the amount of bending of the first tongue piece 29a urging the vicinity of the center of the spacer 23 increases, and the reaction force can increase the sliding resistance with respect to the slide base 6 more than the panel rotation state. . The protrusion 14a is set to a height (L−α) that increases the sliding resistance by the friction mechanism 12 to a value that can prevent the sliding base 6 from moving due to the sliding force Fa1.

On the other hand, as shown in FIG. 5B, when vertical vibration F is applied to the panel driving device 1 in the panel open state, a rotational force Tb is generated at the center of gravity position G of the panel 5, and the sliding force Fb1 is applied to the slide base 6. Will be added. Here, since the sliding force Fb1 is larger than Fa1, it is necessary to increase the sliding resistance with respect to the slide base 6 more than the panel storage state.
Therefore, as shown in FIG. 7C, in the slide base 6 in the panel open state, the portion facing the vicinity of the collar 18b is thickened by the protrusion 14b, and the rear side of the spacer 23 is pushed up. Thereby, the bending amount of the 2nd tongue piece part 29b increases, and also the bending amount (bending amount equivalent to a panel accommodation state) of the 1st tongue piece part 29a increases. Therefore, the sliding resistance with respect to the slide base 6 can be increased as compared with the panel storage state. The protrusion 14b is set to a height (a thickness equivalent to the protrusion 14a) that increases the sliding resistance by the friction mechanism 12 to a value that can prevent the slide base 6 from moving due to the sliding force Fb1. Yes.

  Thus, by providing the protrusions 14a and 14b that increase the sliding resistance by the friction mechanism 12 on the slide base 6, the sliding resistance with respect to the slide base 6 can be easily increased in the panel storage state and the panel open state. It is possible to eliminate problems such as the panel 5 being opened due to rattle noise or the like. Further, in the panel rotation state, sliding resistance can be suppressed and the panel 5 can be easily rotated, so there is no need to provide a large electric drive device.

  Further, first and second tongue pieces 29a and 29b are formed on the front and rear end sides of the leaf spring 28, and the first tongue piece 29a is bent in the panel storage state, and the first tongue piece 29a and the first tongue piece 29a and the second tongue in the panel open state. By bending the tongue portion 29b, the sliding resistance in the panel open state can be made larger than that in the panel storage state, and the sliding resistance can be easily changed according to the panel state. A mechanism 12 can be obtained.

  As described above, according to the first embodiment of the present invention, the slide base 6 is sandwiched between the tapered portions 21 of the collars 18a and 18b and the spacer 23, and the spacer 23 is biased toward the slide base 6 by the leaf spring 28. With this configuration, it is possible to apply an urging force in the vertical direction to the slide base 6, and even when the slide base 6 and the friction mechanism 12 (collars 18 a and 18 b) vary in height, the slide base 6 6 can be prevented, and rattle noise can be suppressed while obtaining a stable sliding resistance without disturbing the smooth movement of the slide base 6.

  In the panel drive device 1 according to the first embodiment, the protrusion 14 is provided to increase the sliding resistance by the friction mechanism 12 by increasing the thickness of the slide base 6 in the panel storage state and the panel open state. For example, when the panel 5 is at a predetermined tilt position, a protrusion 14 that increases sliding resistance may be provided. Further, in the panel rotation state, the slide base 6 may be thinned to form a recess that reduces the sliding resistance by the friction mechanism 12.

In the panel drive device 1 according to the first embodiment, the positioning convex portion 24 is formed in the spacer 23 and the positioning hole 33 is formed in the leaf spring 28. However, the positioning convex portion is formed in the leaf spring 28 and the spacer 23 is formed. A positioning hole may be formed on the surface.
Further, in the present invention, any constituent element of the embodiment can be modified or any constituent element of the embodiment can be omitted within the scope of the invention.

  The panel drive device according to the present invention prevents the deformation of the slide base even when the heights of the slide base and the friction mechanism vary, and provides a stable sliding resistance without disturbing the smooth movement of the slide base. Rattle noise can be suppressed while being obtained, and it is suitable for use in a panel drive device provided with a friction mechanism for adding sliding resistance to the slide base.

  DESCRIPTION OF SYMBOLS 1 Panel drive device, 2 Main body apparatus, 3 Panel storage part, 4 Media insertion slot, 5 Panel, 5a, 5b Engagement protrusion (upper / lower fulcrum), 6 Slide base, 6a Engagement hole, 7 Bending part, 8 Guide member, 9 Chassis, 10 1st guide groove, 11 2nd guide groove, 12 Friction mechanism, 13 Rack gear, 14a, 14b Protrusion, 15 Panel groove, 16a, 16b Guide pin, 17 Collar spring, 18a, 18b Collar, 19 Cylindrical part, 20 groove part, 21 taper part, 22 bottom part, 23 spacer, 23a, 23b collar insertion hole, 24 positioning convex part, 25, 26 convex part, 27 sliding convex part, 28 leaf spring, 29a, 29b first, 2 tongue pieces, 30 L-shaped bent part, 31 key hole, 31a large diameter part, 31b small diameter part, 32 arc groove, 33 positioning hole, 34, 35 engagement hole.

Claims (9)

A panel disposed on an end surface of the main body device, openable and closable on a side opposite to the main body device side, and rotatably connected to the panel, and movable in a panel mounting direction with respect to the main body device, and a guide groove A slide base, a rotation mechanism that rotates the panel as the slide base moves, and a friction mechanism that is engaged with the guide groove and applies a sliding resistance to the slide base. In the panel drive device,
The friction mechanism is
A guide pin fixed to the main unit;
A collar attached to the guide pin and having a tapered portion engaged with the guide groove;
A collar biasing spring that biases the collar toward the slide base;
A spacer engaged with the collar from the side facing the collar biasing spring via the slide base;
A panel drive device comprising: a leaf spring engaged with the collar and biasing the spacer toward the slide base. The panel driving device according to claim 1, wherein the spacer is engaged with a pair of collars at both ends along the moving direction of the slide base. 2. The panel driving device according to claim 1, wherein a sliding convex portion that contacts the slide base is formed around the collar engaging portion of the spacer. 2. The panel driving device according to claim 1, wherein a protrusion that increases sliding resistance is formed on a portion of the slide base that faces the friction mechanism in a predetermined panel state. 2. The panel drive device according to claim 1, wherein the leaf spring is formed with first and second tongue pieces that are different in length and bias the spacer toward the slide base. Grooves are formed in the circumferential direction on the end side of the collar,
The leaf spring includes a bent portion whose one end is elastically deformable in the left-right direction, an arc groove that engages with the collar groove located on the one end, and a key shape that engages with the collar groove located on the other end. The panel driving device according to claim 2, wherein a hole is formed. The first tongue piece is formed along the moving direction of the slide base,
6. The second tongue piece portion is formed in a direction perpendicular to the direction in which the first tongue piece portion is formed, and the tip end portion abuts on a position off the center of the spacer in the perpendicular direction. The panel drive device described. 2. The panel drive according to claim 1, wherein a positioning convex portion is formed on one of the opposing surfaces of the spacer and the leaf spring, and a positioning hole engaging with the positioning convex portion is formed on the other. apparatus. The panel drive according to claim 1, wherein a convex portion that prevents rotation of the leaf spring is formed on the front and rear end sides of the spacer, and an engagement hole that engages with the convex portion is formed in the leaf spring. apparatus.

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