JP2012156290A - Electronic apparatus storage box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electronic apparatus storage box in which a power transmission mechanism can be easily and expertly assembled and disassembled, and which has the power transmission mechanism provided with the small number of parts.SOLUTION: In an electronic apparatus storage box 18 having a display panel 20 swingably provided therein, a power transmission mechanism 30 comprises: a first transmission body 56; a second transmission body 57; a friction body 58 sandwiched between the first transmission body 56 and the second transmission body 57; a latch part 60 provided at a tip part of a protrusion part 59 which is provided at the second transmission body 57; and a spring part 61 for transmitting power which presses the first transmission body 56 to the second transmission body 57 side in a state of being locked to the latch part 60. The spring part 61 for transmitting the power can be engaged with the latch part 60 in a state of being located at a first rotation position with respect to the latch part 60, and can be detached from the latch part 60 in a state of being located at a second rotation position other than the first rotation position with respect to the latch part 60.

Description

  The present invention relates to an electronic device storage box that can store electronic devices such as a television receiver including a vehicle-mounted television, a navigation system, and an audio device.

  Of the above-described conventional electronic device storage boxes, a large display panel is required to store a vehicle-mounted television set, a navigation system, or the like provided in the vehicle. Therefore, in the in-vehicle electronic device storage box, in order to effectively use the space in the vehicle, a movable display panel is disposed on the front surface of the storage box, and the operation unit and the like are located on the back side of the display panel. In some cases, the display panel is moved when operating the operation unit. Conventionally, what is shown in FIG. 20 is known as this kind of vehicle-mounted electronic device storage box (for example, refer patent document 1).

  The conventional in-vehicle electronic device storage box 1 shown in FIG. 20 includes a storage box 2 in which electronic devices are stored. On the front surface of the storage box 2, for example, an audio cassette insertion port 3 is formed. ing. Further, a display panel 4 is disposed on the front side of the storage box 2, and the lower end of the display panel 4 is slidably connected to the tip of the slide portion 5 via the shaft portion 6. . And the upper end part of the back surface of this display panel 4 is hold | maintained by the holding surface 7 formed in concave shape by the front upper part of the storage box 2. As shown in FIG.

  According to the on-vehicle electronic device storage box 1, the slide portion 5 can be moved back and forth by an advancing / retreating drive mechanism (not shown), whereby the elevation angle of the display panel 4 can be changed. For example, when an audio cassette is inserted into the insertion port 3, an operation unit (not shown) is operated to move the slide unit 5 to a predetermined advance position. As a result, the upper edge of the display panel 4 is guided by the holding surface 7 and moved to a position below the insertion slot 3 of the audio cassette so that the insertion slot 3 is exposed. In this state, the audio cassette can be inserted into the insertion port 3.

  By the way, according to the in-vehicle electronic device storage box 1 shown in FIG. 20, when the slide unit 5 is moved forward in the vehicle, for example, when the slide unit 5 comes into contact with the body of the driver or the like, the slide It is required to prevent the drive unit (electric motor) and the advance / retreat drive mechanism from being damaged by automatically stopping the forward movement of the unit 5.

  Therefore, the applicant of the present application has developed a power transmission mechanism 9 shown in FIGS. The power transmission mechanism 9 shown in FIGS. 21 and 22 includes a large gear (worm wheel) 10 to which rotation of a drive unit that is an electric motor is input, and when the large gear 10 is rotated by the drive unit. Accordingly, the small gear 11 is rotated in the same direction. And if this small gear 11 rotates, the rack which meshes with this can be moved to a linear direction, and, thereby, the slide part in which this rack is provided can be moved back and forth.

  In the power transmission mechanism 9, as shown in FIG. 22, a friction body 12 is sandwiched between the large gear 10 and the small gear 11, and between the large gear 10 and the small gear 11. A coil spring 13 is generated as a force for sandwiching the friction body 12.

  According to this power transmission mechanism 9, the large gear 10 and the small gear 11 are connected by the friction torque caused by the surface contact between the friction body 12 and the large gear 10 and the small gear 11, and the rotation generated by the drive unit is large gear. 10 is transmitted to the small gear 11 and the slide portion can be moved forward and backward.

  However, when the slide portion is moved forward, when the slide portion comes into contact with the body of the driver or the like, the large gear 10 is caused by slippage between the friction body 12 and the large gear 10 or the small gear 11. And the small gear 11 are separated from each other, and the rotation generated by the drive unit is not transmitted from the large gear 10 to the small gear 11, and the slide unit is prevented from moving forward and backward by the rotational force of the drive unit. As a result, damage to the drive unit and the advance / retreat drive mechanism can be prevented.

JP-A-7-285390

  However, in the conventional power transmission mechanism 9, as shown in FIG. 22, there are many parts such as a small gear 11, a friction body 12, a shaft portion 14, a large gear 10, a coil spring 13, a holding plate 15, and a retaining ring 16. Since it is configured, it takes a lot of time and labor to assemble and disassemble the power transmission mechanism 9, and the cost of the power transmission mechanism 9 also increases.

  The present invention has been made to solve the above-described problems, and is an electronic device that can easily assemble and disassemble a power transmission mechanism and has a power transmission mechanism with a small number of components. The purpose is to provide a storage box.

  An electronic device storage box according to the present invention includes a storage box in which an electronic device is stored, a display panel disposed on the front side of the storage box, a guide portion provided in the storage box, and the display panel. A slide part, a drive part, and a power generated by the drive part can be transmitted to the display panel. The slide part is capable of swinging and can move forward and backward along the guide part to change the tilt angle of the display panel. In an electronic device storage box including an advance / retreat drive mechanism that transmits to the slide portion via a mechanism and moves the slide portion forward and backward, the power transmission mechanism is provided to rotate by the power generated by the drive portion. A first transmission body, a second transmission body provided to transmit power to the slide portion side, a friction body sandwiched between the first transmission body and the second transmission body, Set on the second transmission body A locking portion provided at the tip of the protruding portion, and a power transmission spring portion that presses the first transmission body against the second transmission body while being locked to the locking portion. The power transmission spring portion engages with the anti-separation portion in a state of being located at a first rotation position with respect to the anti-separation portion, and is located at a position other than the first rotation position with respect to the anti-desorption portion. It is the structure which can be removed from the said slip-off prevention part in the state located in this 2nd rotation position.

  According to the electronic device storage box of the present invention, when the drive unit is driven, the advance / retreat drive mechanism transmits the power generated by the drive unit to the slide unit via the power transmission mechanism, thereby moving the slide unit forward and backward. be able to. Thereby, the tilt angle of the display panel can be changed. Thus, by changing the inclination angle of the display panel, for example, the visibility of the display panel can be improved.

  When the display panel or the slide portion is in an unconstrained state, the first transmission body and the second transmission body are connected by friction torque caused by surface contact between the friction body of the power transmission mechanism and the first and second transmission bodies. The rotation generated by the drive unit is transmitted from the first transmission body to the second transmission body, and the slide unit can be moved back and forth.

  In addition, when the display panel or the slide portion is in a restrained state, the first transmission body and the second transmission body are separated from each other by the slip between the friction body and the first or second transmission body, and the rotation generated by the driving unit is generated. Regardless of the transmission from the first transmission body to the second transmission body, the slide portion does not move forward and backward due to the rotational force of the drive portion.

  Further, when assembling the power transmission mechanism, a friction body is sandwiched between the first transmission body and the second transmission body, and a power transmission spring portion is provided at the tip of the projecting portion of the second transmission body. Lock to the locking part. Thereby, the spring part for power transmission will be in the state which presses a 1st transmission body on the 2nd transmission body side with the spring force.

  And this spring part for power transmission can be engaged with a locking part by making it position in a 1st rotation position with respect to a locking part. And the spring part for power transmission can be removed from a locking part by making it position in 2nd rotation positions other than a 1st rotation position with respect to a locking part.

  In the electronic device storage box according to the present invention, one or more convex portions or concave portions formed on the lower surface of the locking portion and the power transmission spring portion are formed, and the power transmission spring portion is the first power transmission portion. One or more concave portions or convex portions engaged with one or more of the convex portions or the concave portions of the detent portion in a state of being located at one rotation position and engaging with the anti-separation portion. Further, it can be provided.

  In this way, the power transmission spring portion is located at the first rotation position and engages with the locking portion, and one or more convex portions or recesses of the locking portion are the power transmission spring portion. Can be engaged with one or more recesses or protrusions formed in the. Accordingly, even when an external force is applied in a direction in which the power transmission spring portion is displaced from the power transmission spring portion in a state where the power transmission spring portion is located at the first rotation position and is engaged with the locking portion. The power transmission spring part can be prevented from being displaced. As a result, it is possible to prevent the power transmission spring portion from being detached from the detachment preventing portion, and the tilt angle of the display panel can be reliably changed by driving the drive portion.

  In the electronic device storage box according to the present invention, an insertion hole through which the anti-separation portion can be inserted is formed at substantially the center of each of the first transmission body and the power transmission spring portion, and the power transmission spring. The insertion hole formed in the part and the planar shape of the locking part are substantially polygons including a substantially triangle, and one or more of the inner edge part of the insertion hole formed in the power transmission spring part The said recessed part or the said convex part shall be formed.

  If it does in this way, a detent part can be inserted in the penetration hole formed in each approximate center part of the 1st transmission body and the spring part for power transmission. At this time, the power transmission spring portion is in a state of being located at the second rotation position with respect to the slip prevention portion. Since the insertion hole formed in the power transmission spring part and the planar shape of the locking part are substantially polygons including a substantially triangular shape, the power transmission spring part is moved from the second rotation position to the first rotation. By rotating to the moving position, a displacement occurs in the rotation direction between the shape of the inner peripheral edge of the insertion hole of the power transmission spring part and the shape of the outer peripheral edge of the locking part. Can do. Thus, the lower surface of the locking portion can be engaged with the inner edge portion of the insertion hole of the power transmission spring portion. At this time, 1 or 2 formed on the inner edge portion of the insertion hole of the power transmission spring portion The above recesses or protrusions can be engaged with one or more protrusions or recesses formed on the lower surface of the locking portion.

  In the electronic device storage box according to the present invention, the slide portion includes a first slide portion and a second slide portion that are formed substantially parallel to each other at an interval, and the first and second slide portions are The guide part includes a first guide part that guides the first slide part, and a second guide part that guides the second slide part, and The first guide unit includes a first vertical downward positioning guide unit that performs vertical positioning of the first slide unit, and a first horizontal positioning guide unit that performs horizontal positioning of the first slide unit. The first slide portion is urged toward the first vertical downward positioning guide portion by the first vertical downward spring portion, and the first horizontal positioning guide portion is provided by the first horizontal spring portion. Also being urged to the side It can be.

  As described above, the first vertical downward spring portion biases the first slide portion toward the first vertical downward positioning guide portion, thereby positioning the first slide portion in the vertical downward direction. Can do. Thereby, even if vibration in the gravitational direction is applied to the slide part, it is possible to suppress the rattling of the slide part in the vertical direction.

The first horizontal spring portion biases the first slide portion toward the first horizontal positioning guide portion, thereby positioning the slide portion in the horizontal direction on the first horizontal positioning guide portion side. It can be carried out. Thereby, even if a horizontal vibration is applied to the slide portion, it is possible to suppress the play of the slide portion in the horizontal direction. In addition, the first slide portion of one of the first and second slide portions can be suppressed. By performing the vertical and horizontal positioning, the sliding portion can be positioned in the vertical and horizontal directions. Thus, the vertical and horizontal positioning of the slide portion can be realized with a simple structure, and the advance / retreat drive mechanism can be assembled and disassembled easily and in a short time.

  In the electronic device storage box according to the present invention, the advance / retreat drive mechanism has a rack provided at an edge portion substantially parallel to a direction in which the first slide portion advances and retreats, and the rack is provided with the second transmission body. A certain gear meshes and the horizontal movement of the rack away from the second transmission body is restricted by the first horizontal positioning guide.

  If it does in this way, the motive power which a drive part generates will be transmitted to a rack via the 2nd transmission body, and a slide part can be moved forward and backward. Then, since the horizontal movement of the rack away from the second transmission body (gear) is restricted by the first horizontal positioning guide, the horizontal vibration is applied to the electronic device storage box. However, it is possible to prevent the rack from being detached from the second transmission body. Thereby, the slide part can be reliably moved forward and backward by the power generated by the drive part.

  Of course, the horizontal movement of the rack approaching the second transmission body is regulated by the second transmission body.

  Further, the vertical movement of the rack relative to the second transmission body is regulated from above and below by the first vertical downward positioning guide portion and the first vertical downward spring portion, so that the rack moves in the vertical direction. It can prevent coming off from the 2nd transmission body.

  In the electronic device storage box according to the present invention, the second guide portion is configured to position the second slide portion in a vertically downward direction, and the second slide portion is provided by a second vertically downward spring portion. It can be biased toward the second guide section.

  As described above, the second vertical downward spring portion biases the second slide portion toward the second guide portion, so that the second slide portion can be positioned in the vertical downward direction. Thereby, even if vibration in the gravitational direction is applied to the slide part, it is possible to suppress the rattling of the slide part in the vertical direction.

  In the electronic device storage box according to the present invention, the display is provided by detecting the rotation angle of the position detection gear provided in the advance / retreat drive mechanism and rotating in conjunction with the advance / retreat movement of the slide portion, and the rotation angle of the position detection gear. An angle detector that generates an angle signal corresponding to the tilt angle of the panel, and the drive unit is controlled based on the angle signal generated by the angle detector, so that the display panel is set to a predetermined tilt angle or a desired The control part which can be set to an inclination angle shall be provided.

  In this way, first, for example, the user operates the operation unit and inputs the display panel to the control unit so as to have a predetermined tilt angle or a desired tilt angle. Then, the slide portion is driven by the drive portion to move forward and backward, and the position detection gear rotates in conjunction with the forward and backward movement. Then, the rotation angle of the position detection gear is detected by an angle detector, and the angle detector can generate an angle signal corresponding to the tilt angle of the display panel based on the rotation angle of the position detection gear. it can. The control unit can control the drive unit based on the angle signal generated by the angle detector to set the display panel to a predetermined tilt angle input by the user or a desired tilt angle. .

  The electronic device storage box according to the present invention can be used for in-vehicle use.

  When this electronic device storage box is mounted on a vehicle, for example, when the slide part is moved forward, the power is transmitted when the slide part comes into contact with the body of the driver and the movement of the slide part is restricted. Since the sliding of the friction member of the mechanism occurs and the forward movement of the slide portion automatically stops, it is possible to prevent damage to the drive portion and the advance / retreat drive mechanism.

  According to the electronic device storage box of the present invention, the power transmission mechanism can be brought into an assembled state by positioning the power transmission spring portion at the first rotation position with respect to the locking portion. Since the power transmission mechanism can be disassembled by positioning the spring portion in the second rotation position with respect to the locking portion, the power transmission mechanism can be easily simplified without using tools or tools. It can be assembled and disassembled neatly.

  In addition, the power transmission spring portion can be attached to and detached from the separation preventing portion and the first transmission body, even though the separation prevention portion is provided at the tip of the protruding portion of the second transmission body. Since the configuration is such that the power transmission spring portion is applied to the first transmission body, the anti-separation portion as another component is attached to the tip of the projecting portion of the second transmission body, and at least this The number of parts can be reduced by the amount of the stopper portion, and the cost of the power transmission mechanism can be reduced.

It is a perspective view which shows the electronic device storage box which concerns on one Embodiment of this invention. It is a perspective view which shows the advancing / retreating drive mechanism provided in the electronic device storage box which concerns on the same embodiment. It is a top view which shows the state which has the slide part of the advance / retreat drive mechanism shown in FIG. 2 in a retreat position. It is a top view which shows the state which has the slide part of the advance / retreat drive mechanism shown in FIG. 2 in an advance position. It is a perspective view which shows the slide part of the advance / retreat drive mechanism shown in FIG. It is a top view which shows the slide part shown in FIG. FIG. 3 is a perspective view showing a first vertical downward spring portion and a first horizontal spring portion for positioning a slide portion of the advance / retreat drive mechanism shown in FIG. 2. FIG. 3 is a perspective view showing a first vertical upward spring portion for positioning a slide portion of the advance / retreat drive mechanism shown in FIG. 2. It is a perspective view which shows the 2nd vertical downward spring part for positioning the slide part of the advance / retreat drive mechanism shown in FIG. It is a longitudinal cross-sectional view which shows the power transmission mechanism with which the advance / retreat drive mechanism shown in FIG. 2 is provided. It is a disassembled perspective view which shows the power transmission mechanism shown in FIG. It is a figure which shows the power transmission mechanism shown in FIG. 10, (a) is a top view, (b) is a front view, (c) is a bottom view. It is a figure which shows the 2nd transmission structure with which the power transmission mechanism shown in FIG. 10 is provided, (a) is a top view, (b) is a front view, (c) is a bottom view. It is a partial enlarged front view which shows the 2nd transmission structure shown in FIG. It is AA sectional drawing which shows the 2nd transmission structure shown in FIG. It is a figure which shows the spring part for power transmission with which the power transmission mechanism shown in FIG. 10 is provided, (a) is a top view, (b) is a side view, (c) is a front view. FIG. 17 is a partially enlarged plan view showing the power transmission spring portion shown in FIG. 16, where (a) shows a state at the second rotation position, and (b) shows a state at the first rotation position. It is a figure side view. It is a figure which shows the power transmission mechanism shown in FIG. 10, (a) is a perspective view which shows the non-engagement state of the power transmission spring part, (b) is a perspective view which shows the engagement state of the power transmission spring part. FIG. It is a block diagram which shows the electric circuit of the electronic device storage box which concerns on the same embodiment. It is a perspective view which shows the conventional vehicle-mounted electronic device storage box. It is a perspective view which shows the power transmission mechanism which can be provided in a vehicle-mounted electronic device storage box. It is a disassembled perspective view which shows the power transmission mechanism shown in FIG.

  Hereinafter, an embodiment of an electronic device storage box according to the present invention will be described with reference to FIGS. The electronic device storage box 18 can store one or two or more electronic devices of, for example, a television receiver including an in-vehicle television, a navigation system, and an audio device. In this embodiment, This will be described as the on-vehicle electronic device storage box 18. However, the electronic device storage box of the present invention can be used by being applied to, for example, home use other than in-vehicle use.

  The in-vehicle electronic device storage box 18 shown in FIG. 1 includes a storage box 19 in which electronic devices such as an in-vehicle TV and a navigation system are stored, and a movable display panel 20 is disposed on the front surface of the storage box 19. It is. The front surface of the storage box 19 located on the back side of the display panel 20 is provided with a CD or DVD insertion slot 21 on which music or the like is recorded, for example, and is further provided with an operation unit (not shown). ing. The tilt angle of the display panel 20 can be changed when operating the operation unit or when inserting or removing a CD or DVD from the insertion slot 21. Note that the operation unit 22 for changing the tilt angle of the display panel 20 is provided exposed below the display panel 20, for example.

  As shown in FIG. 1, the lower end of the display panel 20 is slidably connected to the tip of the slide portion 23 via a shaft portion 24. The upper end of the display panel 20 is provided so as to be movable in the vertical direction along a pair of guide plates 25, 25 provided on the left and right sides of the front surface of the storage box 19.

  That is, a pair of pins 26 project from the left and right sides of the upper end of the display panel 20 so as to extend outward in the horizontal direction, and these pins 26 are formed on the pair of guide plates 25. It is slidably engaged with the guide long hole 27.

  According to the on-vehicle electronic device storage box 18, the slide portion 23 can be moved back and forth by the forward / backward drive mechanism 28 shown in FIG. 2, and thereby the elevation angle of the display panel 20 can be changed. For example, when inserting or removing a CD or DVD from the insertion slot 21, the operation unit (not shown) is operated to move the slide unit 23 to a predetermined advance position. As a result, the upper edge portion of the display panel 20 is guided by the long hole 27 of the guide plate 25 and moved to a position below the insertion slot 21 such as a CD, so that the insertion slot 21 is exposed. In this state, a CD or the like can be inserted or removed.

  FIG. 2 is a perspective view showing the advance / retreat drive mechanism 28 provided in the electronic device storage box 18. The advancing / retreating drive mechanism 28 can transmit the power generated by the drive unit 29 to the slide unit 23 via the power transmission mechanism 30 to move the slide unit 23 forward and backward. And a rack 31. The slide portion 23 is moved forward and backward by being guided by a guide portion 32 provided in the storage box 19.

  FIG. 3 is a plan view showing a state in which the slide portion 23 of the advance / retreat drive mechanism 28 is in the retracted position (position accommodated in the storage box 19). FIG. 4 is a plan view showing a state in which the slide portion 23 is in the forward movement position (position protruding from the storage box 19).

  As shown in FIGS. 5 and 6, the slide portion 23 is a thin plate that is bent and formed in a planar shape. The slide portion 23 includes a first slide portion 33 and a second slide portion 34 that are formed substantially parallel to each other with a space therebetween, and the first and second slide portions 33 and 34 have their front ends. The parts are coupled to each other with the coupling part 35 interposed therebetween.

  And the rack 31 is formed in the inner edge part of this 1st slide part 33 over the range of predetermined length. Further, the outer edge portion of the first slide portion 33 is bent vertically upward to form a first side plate portion 36. Further, a long hole 38 is formed in the first flat surface portion 37 of the first slide portion 33 in parallel with the length direction.

  5 and 6, the outer edge portion of the second slide portion 34 is bent vertically upward to form a second side plate portion 39, and the upper edge portion of the second side plate portion 39 is A second upper plane part 40 is formed by bending in the horizontal outer direction.

  Next, the guide part 32 is demonstrated with reference to FIG.7 and FIG.9. The guide part 32 includes a first guide part 41 (see FIG. 7) for guiding the first slide part 33 and a second guide part 42 (see FIG. 9) for guiding the second slide part 34.

  As shown in FIG. 7, the first guide portion 41 includes a first vertical downward positioning guide portion 43 that performs vertical positioning of the first slide portion 33 and a horizontal positioning of the first slide portion 33. And a first horizontal positioning guide 44 to be performed.

  As shown in FIG. 7, the first horizontal positioning guide portion 44 is a roller and is rotatably provided on the upper portion of the first vertical downward positioning guide portion 43. The central axis of this roller is parallel to the vertical direction, and the outer surface of this roller is on one inner edge portion (the right inner edge portion shown in FIG. 7) 38a of the long hole 38 formed in the first slide portion 33. It is in contact.

  The two first horizontal positioning guide portions 44 formed of this roller are provided on the line parallel to the forward / backward direction of the first slide portion 33 at a predetermined interval from each other. In this way, by providing the two first horizontal direction guide portions 44, the first slide portion 33 is guided so as to be able to advance and retreat along a predetermined linear direction in a state in which the horizontal left direction is positioned. can do.

  Further, as shown in FIG. 7, the first vertical downward positioning guide 43 is formed by an outer peripheral portion of the upper surface of a short columnar pedestal made of synthetic resin, for example, at a predetermined height. The diameter of the first vertical downward positioning guide 43 is larger than the diameter of the first horizontal positioning guide 44 and larger than the width of the long hole 38 formed in the first slide 33. It is. The first vertical downward positioning guide 43 is fixed to the upper surface of the bottom wall 19 a of the storage box 19.

  According to the first vertical downward positioning guide portion 43, as shown in FIG. 7, it is in contact with the lower surfaces of a pair of inner edge portions 38a, 38b parallel to each other of the long hole 38 formed in the first slide portion 33. The slide portion 23 including the first slide portion 33 can be supported. Therefore, it is possible to guide the slide part 23 including the first slide part 33 so that the slide part 23 can advance and retreat along a predetermined linear direction in a state where the vertical downward positioning is performed.

  Further, as shown in FIG. 9, the second guide portion 42 is used to position the second slide portion 34 in the vertically downward direction, and is formed of, for example, an elongated plate-like body made of synthetic resin. The second guide part 42 contacts the lower surface of the second upper plane part 40 formed on the second slide part 34 and positions the slide part 23 including the second slide part 34 in the vertically downward direction. In such a state, it is possible to guide the robot so that it can move forward and backward along a predetermined linear direction.

  Further, as shown in FIG. 9, the second guide part 42 is provided horizontally on the inner surface of the second support part 45 made of synthetic resin having a U-shaped cross section. A second upper restricting portion 46 is provided on the upper portion of the second support portion 45 at a distance from the second upper flat portion 40. The second upper restricting portion 46 is for restricting the second slide portion 34 from lifting upward.

  Next, the first vertical downward spring portion 47 and the first horizontal spring portion 48 for positioning the first slide portion 33 will be described with reference to FIG. The first vertical downward spring portion 47 and the first horizontal spring portion 48 are leaf springs and are provided in the first spring main body portion 49. The first spring main body 49 is fixed by screws 50 and 50 to a fixed shaft (not shown) that rotatably supports the pair of first horizontal positioning guides 44 in a state of being horizontally disposed. It is attached.

  As shown in FIG. 7, the first vertical downward spring portion 47 can be urged toward the first vertical downward positioning guide portion 43 with respect to the first slide portion 33. The slide part 33 can be positioned vertically downward. As a result, even if vibration in the gravitational direction is applied to the slide portion 23, the vertical play of the slide portion 23 can be suppressed.

The first horizontal spring portion 48 can be urged toward the first horizontal positioning guide portion 44 with respect to the first slide portion 33, and thereby the first horizontal direction positioning guide of the slide portion 23. Positioning in the horizontal direction on the portion 44 side (left direction in FIG. 7) can be performed. Accordingly, even if horizontal vibration is applied to the slide portion 23, the horizontal play of the slide portion 23 can be suppressed. Also, one of the first and second slide portions 33 and 34 can be suppressed. By positioning the first slide portion 33 in the vertical direction and the horizontal direction, the entire slide portion 23 can be positioned in the vertical direction and the horizontal direction. Thus, the vertical and horizontal positioning of the slide part 23 can be realized with a simple structure, and the advance / retreat drive mechanism 28 can be assembled and disassembled easily and in a short time.

FIG. 8 is a perspective view showing the first vertical upward spring portion 51 for positioning the first slide portion 33. The first vertical upward spring portion 51 is a leaf spring and is screwed to the upper surface of the first horizontal plate portion 53 formed in the first support portion 52. The first vertical upward spring portion 51 urges the rear side portion of the first slide portion 33 upward, thereby preventing the rear side portion of the first slide portion 33 from rattling in the vertical direction. is there. The first support portion 52 is attached to the bottom wall 19a of the storage box 19. Next, referring to FIG. 9, the second vertical downward direction for positioning the second slide portion 34 in the vertical direction. The spring part 54 is demonstrated. The second vertical downward spring portions 54 are leaf springs, and two second spring main body portions 55 are provided. The second spring body 55 is an elongated plate-like body, and is fixedly attached to the upper surface of the second upper restricting portion 46 in a horizontally disposed state.

  As shown in FIG. 9, the two second vertical downward spring portions 54 can be urged toward the second guide portion 42 with respect to the second slide portion 34, whereby the second slide portion 34 can be positioned vertically downward. As a result, even if vibration in the gravitational direction is applied to the slide portion 23, the vertical play of the slide portion 23 can be suppressed.

  Next, the power transmission mechanism 30 provided in the advance / retreat drive mechanism 28 shown in FIG. 3 will be described with reference to FIGS. As shown in FIG. 3, the power transmission mechanism 30 transmits the power generated by the drive unit 29 to the first slide portion 33 and moves the slide portion 23 provided with the first slide portion 33 forward and backward. Is for. For example, when the slide part 23 that moves forward contacts the body of a driver or the like and the forward movement of the slide part 23 is restricted, the power generated by the drive unit 29 is not transmitted to the slide part 23. Thus, damage to the drive unit 29 and the advance / retreat drive mechanism 28 can be prevented.

  FIG. 10 is a longitudinal sectional view showing the power transmission mechanism 30, and FIG. 11 is an exploded perspective view showing the power transmission mechanism 30. 12 is a diagram showing the power transmission mechanism 30. FIG. 12 (a) is a plan view, FIG. 12 (b) is a front view, and FIG. 12 (c) is a bottom view.

  As shown in FIG. 10 and the like, the power transmission mechanism 30 includes a first transmission body 56 (for example, a worm wheel) provided so as to be rotated by power generated by the drive unit 29, and a rack provided on the first slide portion 33. A second transmission body 57 (for example, a small gear) provided to transmit power to 31, a friction body 58 sandwiched between the first transmission body 56 and the second transmission body 57, and a second transmission body 57 is provided at the front end of the projecting portion 59 provided at 57, and the power that presses the first transmission body 56 toward the second transmission body 57 in a state of being locked to the prevention portion 60. And a transmission spring portion 61.

  The first transmission body 56 (worm wheel) meshes with a worm 62 provided on the rotation shaft of the drive unit 29 shown in FIG. As shown in FIG. 10, the first transmission body 56 has a circular insertion hole 56 a formed at the center thereof, and a protrusion provided at the center of the second transmission body 57 in the insertion hole 56 a. A base end portion 59a of 59 is rotatably mounted.

  As shown in FIG. 3, the second transmission body 57 (small gear) meshes with the rack 31 provided on the first slide portion 33, and is rotatable about the first shaft 63 provided on the storage box 19. It is installed. The first shaft 63 is inserted through the insertion hole 57a of the second transmission body 57 shown in FIG. As shown in FIG. 10, a disk-shaped portion 64 is provided on the upper portion of the second transmission body 57, and between the upper surface of the disk-shaped portion 64 and the lower surface of the first transmission body 56. A friction body 58 is disposed. As shown in FIG. 13, the second transmission body 57 is provided in the second transmission structure 65.

  As shown in FIG. 11, the friction body 58 is a disc-shaped body made of, for example, a synthetic resin. A circular hole is formed in the center, and the base end portion 59a of the protruding portion 59 is disposed in the circular hole. Yes.

  Further, as shown in FIGS. 14 and 15, a locking portion 60 is provided at the distal end portion of the projecting portion 59 provided in the second transmission body 57 so as to expand outward from the distal end portion in the radial direction. It has been. The anti-disengagement portion 60 has a substantially triangular planar shape, and each of the three apexes is formed in an arc shape. A circular groove 66 is formed at the tip of the protruding portion 59 where the detachment preventing portion 60 is provided. In addition, on the lower surface of the locking portion 60, three convex portions 67 are formed that extend in the radial direction at positions passing through the three top portions.

  As shown in FIG. 10, the power transmission spring portion 61 is attached to a groove portion 66 formed at the distal end portion of the protruding portion 59, and the first movement is stopped in the state where the upward movement is locked by the detachment preventing portion 60. The transmission body 56 can be pressed against the second transmission body 57 side.

  As shown in FIGS. 16 and 17, the power transmission spring portion 61 is formed of a thin plate-shaped spring member, and an insertion hole 68 is formed at the center thereof. The insertion hole 68 has a planar shape. Each of the three apexes is formed in an arc shape. As shown in FIG. 17A, the insertion hole 68 is formed with a size slightly larger than the anti-separation part 60 so that the anti-separation part 60 can be inserted.

  As shown in FIG. 16, the power transmission spring portion 61 has a third spring body portion 69 formed at the center, and is radially extended from the third spring body portion 69 and has three projecting portions 70 in three directions. Is formed. A pressing portion 71 is formed at the tip of each of the three overhang portions 70. Each of the pressing portions 71 is a plate-like body having a circular arc shape in plan view. And these three pressing parts 71 are formed in the position which passes through one circle as a whole, as shown to Fig.16 (a). These three pressing portions 71 are in contact with the upper surface of the first transmission body 56 and press the first transmission body 56 against the second transmission body 57 side.

  Further, as shown in FIG. 17A, one notch recess 72 is provided in each of the three linear inner edge portions 68a of the substantially triangular insertion hole 68 formed in the power transmission spring portion 61. Is formed. The three concave portions 72 are formed at substantially the center of the three inner edge portions 68a.

  According to the power transmission spring portion 61 configured as described above, as shown in FIGS. 17A and 18A, in a state of being located at the second rotation position with respect to the locking portion 60, The detachment preventing portion 60 can be passed through the insertion hole 68 of the power transmission spring portion 61. Therefore, the power transmission spring portion 61 can be attached to and detached from the detachment preventing portion 60.

  Then, as shown in FIGS. 17B and 18B, the power transmission spring portion 61 is rotated by about 60 ° from the second rotation position (first with respect to the locking portion 60). It can be engaged with the locking part 60 by rotating it to the pivot position.

  As described above, the power transmission spring portion 61 is engaged with the detachment preventing portion 60 in a state of being rotationally moved to the first rotation position, and the first transmission body 56 is moved to the second transmission body by the spring force. It can be pressed to the 57 side. This pressing force becomes a force for sandwiching the friction body 58 between the first transmission body 56 and the second transmission body 57, and when the first transmission body 56 rotates, the first and second transmission bodies 56, Friction torque is generated between 57 and the friction body 58, and the rotation of the first transmission body 56 can be transmitted to the second transmission body 57.

  In FIG. 17B, a hatched portion 73 is a portion that engages with the detachment preventing portion 60 when the power transmission spring portion 61 moves upward.

  And as shown in FIG.17 (b), in the state which the spring part 61 for power transmission is located in a 1st rotation position, each three convex part 67 formed in the lower surface of the locking part 60 is a power transmission. The spring portion 61 is adapted to engage with the three concave portions 72 formed in the inner edge portion 68 a of the insertion hole 68. As described above, the three convex portions 67 of the locking portion 60 and the three concave portions 72 of the power transmission spring portion 61 are engaged with each other, so that the power transmission spring portion 61 is connected to the locking portion 60. On the other hand, it is possible to prevent displacement in the rotation direction around the second transmission structure 65. Accordingly, it is possible to prevent the power transmission spring portion 61 from being detached from the detachment preventing portion 60.

  Next, a panel angle setting mechanism 74 that can set the display panel 20 to a predetermined tilt angle or a desired tilt angle will be described with reference to FIGS. 3 and 19. As shown in FIGS. 3 and 19, the panel angle setting mechanism 74 includes a position detection gear 75, an angle detector 76, a control unit 77, and an operation unit 22.

  The position detection gear 75 is provided in the advance / retreat drive mechanism 28 shown in FIG. 3 and rotates in conjunction with the advance / retreat movement of the slide portion 23. The position detection gear 75 meshes with the second transmission body 57 and is fixedly attached to a second shaft 78 that is rotatably provided with respect to the storage box 19.

  The angle detector 76 is a rotary encoder, for example, and detects an angle signal corresponding to the tilt angle of the display panel 20 by detecting the rotation angle of the second shaft 78 (position detection gear 75) coupled to the position detection gear 75. Is to be generated.

  The control unit 77 includes a central processing unit (not shown), and can perform various calculations and processing according to a predetermined program stored in advance in the storage unit. As shown in FIG. 19, the angle detector 76, the operation unit 22, and the drive unit 29 are electrically connected to the control unit 77. The control unit 77 is configured to control the drive unit 29 based on the angle signal generated by the angle detector 76 to set the display panel 20 to a predetermined tilt angle or a desired tilt angle. ing.

  The operation unit 22 is operated by the user when the display panel 20 is set to a predetermined inclination angle or a desired inclination angle.

  According to the panel angle setting mechanism 74, first, for example, the user operates the operation unit 22, and inputs the display panel 20 to the control unit 77 so as to have a predetermined tilt angle or a desired tilt angle. Then, the slide part 23 is driven by the drive part 29 to move forward and backward, and the position detection gear 75 rotates in conjunction with this forward and backward movement. Then, the rotation angle of the position detection gear 75 is detected by an angle detector 76, and the angle detector 76 detects an angle signal corresponding to the inclination angle of the display panel 20 based on the rotation angle of the position detection gear 75. Can be generated. The control unit 77 controls the drive unit 29 based on the angle signal generated by the angle detector 76 to set the display panel 20 to a predetermined tilt angle input by the user or a desired tilt angle. can do.

  Next, the operation of the electronic device storage box 18 configured as described above will be described. According to the electronic device storage box 18 shown in FIG. 2, when the drive unit 29 is driven, the advance / retreat drive mechanism 28 transmits the power generated by the drive unit 29 to the slide unit 23 via the power transmission mechanism 30. The slide part 23 can be moved back and forth. Thereby, the inclination angle of the display panel 20 shown in FIG. 1 can be changed. Thus, by changing the tilt angle of the display panel 20, for example, the visibility of the display panel 20 can be improved. Furthermore, the insertion port 21 provided on the front surface of the storage box 19 can be exposed without being obstructed by the display panel 20. Thereby, for example, a music CD, DVD, cassette, or the like can be inserted into the insertion slot 21, and a CD or the like inserted into the insertion slot 21 can be taken out from the insertion slot 21.

  When the display panel 20 or the slide portion 23 shown in FIG. 1 is in an unconstrained state, the first torque is generated by the friction torque generated by the surface contact between the friction body 58 of the power transmission mechanism 30 and the first and second transmission bodies 56 and 57. By connecting the transmission body 56 and the second transmission body 57, the rotation generated by the drive unit 29 is transmitted from the first transmission body 56 to the second transmission body 57, and the slide portion 23 can be moved forward and backward. In addition, when the display panel 20 or the slide portion 23 is in a restrained state, the first transmission body 56 and the second transmission body 57 are separated from each other by the slip between the friction body 58 and the first or second transmission body 57 and driven. The rotation generated by the portion 29 is not transmitted from the first transmission body 56 to the second transmission body 57, and the slide portion 23 does not move forward and backward due to the rotational force of the drive portion 29.

  Further, when assembling the power transmission mechanism 30, as shown in FIG. 10, first, the friction body 58 is sandwiched between the first transmission body 56 and the second transmission body 57, and FIG. As shown in FIG. 18 (a), the locking portion 60 provided at the tip of the protrusion 59 of the second transmission body 57 is inserted into the insertion hole 68 of the power transmission spring portion 61 at the second rotational position. Insert. Next, as shown in FIGS. 17B and 18B, the power transmission spring portion 61 is rotated about 60 ° from the first rotation position with respect to the locking portion 60 (first). 1), the power transmission spring portion 61 is engaged with the locking portion 60. As a result, the power transmission spring portion 61 is in a state of pressing the first transmission body 56 against the second transmission body 57 by the spring force.

As shown in FIGS. 17A and 18A, the power transmission spring portion 61 is rotated about 60 ° from the first rotation position with respect to the locking portion 60 (second). It can be removed from the locking part 60 by setting it to the pivot position.
As described above, according to the electronic device storage box 18, as shown in FIGS. 17 (b) and 18 (b), the power transmission spring portion 61 is moved to the first rotation position with respect to the locking portion 60. By positioning the power transmission mechanism 30, the power transmission mechanism 30 can be in an assembled state, and the power transmission spring portion 61 can be moved relative to the locking portion 60 as shown in FIGS. 17 (a) and 18 (a). Since the power transmission mechanism 30 can be disassembled by positioning the power transmission mechanism 30 at the second rotational position, the power transmission mechanism 30 can be easily and skillfully assembled and disassembled without using tools or tools. It is possible.

  Then, as shown in FIGS. 17A and 17B, the power transmission spring portion 61 is provided in spite of the fact that the detachment preventing portion 60 is provided at the distal end portion of the protruding portion 59 of the second transmission body 57. Since the structure is detachable with respect to the groove portion 66 between the anti-separation portion 60 and the first transmission body 56, the power transmission spring portion 61 is attached to the first transmission body 56, and is detached as another component. Compared to the structure in which the stopper is attached to the tip of the protrusion 59 of the second transmission body 57, the number of parts can be reduced at least by the amount of the stopper, and the cost of the power transmission mechanism 30 can be reduced. Reduction can be achieved.

  Further, as shown in FIG. 17B and the like, the three convex portions 67 of the locking portion 60 are in a state where the power transmission spring portion 61 is located at the first rotation position and engages with the locking portion 60. However, it is possible to engage with the three recesses 72 formed in the power transmission spring portion 61. As a result, in the state where the power transmission spring portion 61 is positioned at the first rotation position and is engaged with the locking portion 60, the external force that causes the power transmission spring portion 61 to be displaced in the rotation direction. Even when it is applied, it is possible to prevent the power transmission spring portion 61 from being displaced. Thereby, it is possible to prevent the power transmission spring portion 61 from being detached from the detachment preventing portion 60, and the tilt angle of the display panel 20 can be reliably changed by driving the drive portion 29.

  Furthermore, as shown in FIG. 17B, the planar shape of the insertion hole 68 formed in the power transmission spring portion 61 and the locking portion 60 is substantially triangular. By rotating from the two rotation positions to the first rotation position, the three top portions (hatching portions 73) of the retaining portion 60 are moved at three locations on the inner peripheral edge portion of the insertion hole 68 of the power transmission spring portion 61. Can be engaged. As described above, by engaging at three positions, the locking portion 60 can lock the power transmission spring portion 61 in a stable state. Then, by making the insertion hole 68 of the power transmission spring part 61 and the plan shape of the locking part 60 into a substantially triangular shape, the three top parts of the locking part 60 are connected to the insertion hole 68 of the power transmission spring part 61. The depth H engaged with the inner peripheral edge can be increased, and the detachment preventing portion 60 can firmly and securely lock the power transmission spring portion 61.

  Then, according to the advancing / retracting drive mechanism 28 shown in FIG. 3, the left horizontal movement away from the second transmission body 57 of the rack 31 provided at the right edge of the first slide portion 33 is shown in FIG. Since the configuration is restricted by the horizontal positioning guide portion 44, the rack 31 can be prevented from being detached from the second transmission body 57 even when horizontal vibration is applied to the electronic device storage box 18. .

  Of course, the movement in the right horizontal direction in which the rack 31 approaches the second transmission body 57 is regulated by the second transmission body 57.

  Further, the vertical movement of the rack 31 with respect to the second transmission body 57 is regulated from above and below by the first vertical downward positioning guide 43 and the first vertical downward spring 47 shown in FIG. It is possible to prevent the rack 31 from moving in the vertical direction and coming off from the second transmission body 57. Thereby, the slide part 23 can be reliably moved forward and backward by the power generated by the drive part 29.

  However, in the above-described embodiment, as shown in FIGS. 17A and 17B, a convex portion 67 is provided on the lower surface of the locking portion 60, and the convex portion 67 is engaged with the inner edge portion of the power transmission spring portion 61. However, instead of this, a recess may be provided on the lower surface of the locking portion 60, and a protrusion that engages with the recess may be provided on the inner edge of the power transmission spring portion 61. . The convex portion of the power transmission spring portion 61 projects in a direction toward the concave portion on the lower surface of the locking portion 60.

  And in the said embodiment, as shown to Fig.17 (a), (b), although the planar shape of the insertion hole 68 formed in the spring part 61 for power transmission and the locking part 60 was substantially triangular, Instead of this, it may be a substantially polygonal shape other than a substantially triangular shape, or a shape other than a circular shape.

  As described above, even in the case of a substantially polygon other than a substantially triangular shape, the plurality of convex portions 67 provided on the lower surface of the locking portion 60 are positions passing through the plurality of top portions of the locking portion 60, It is formed so as to extend in the radial direction.

  Then, one notch recess 72 is formed in each of the plurality of linear inner edges of the substantially polygonal insertion hole formed in the power transmission spring portion 61. The plurality of recesses 72 are preferably formed at substantially the center of each inner edge.

  Moreover, in the said embodiment, as shown to Fig.17 (a), (b), the three convex parts 67 are provided in the lower surface of the locking part 60, and these three convex parts are provided in the inner edge part of the spring part 61 for power transmission. Three recesses 72 to be engaged with the portion 67 are provided, but instead of this, one or a plurality of projections 67 other than three are provided on the lower surface of the locking portion 60, and the inner edge of the power transmission spring portion 61 is provided. One or a plurality of recesses 72 that are engaged with the one or more protrusions 67 may be provided in the part.

  Furthermore, in the above embodiment, as shown in FIG. 1, the display panel 20 can be adjusted in elevation angle, but instead, the depression angle may be adjusted. Further, the angle of the display panel 20 may be changed in the left-right direction.

  In the above embodiment, as shown in FIG. 1, an example having an insertion slot 21 such as a CD or a DVD has been described as an example. However, the present invention is applied to an electronic device storage box that does not have this insertion slot 21. be able to.

  As described above, the electronic device storage box according to the present invention has an excellent effect that the power transmission mechanism can be assembled and disassembled easily and neatly and the number of parts of the power transmission mechanism can be reduced. And suitable for application to such an electronic device storage box.

DESCRIPTION OF SYMBOLS 18 Electronic device storage box 19 Storage box 19a Bottom wall 20 Display panel 21 Insertion port 22 Operation part 23 Slide part 24 Shaft part 25 Guide plate 26 Pin 27, 38 Long hole 38a, 38b Inner edge part 28 Advance / retreat drive mechanism 29 Drive part 30 Power Transmission mechanism 31 Rack 32 Guide part 33 First slide part 34 Second slide part 35 Coupling part 36 First side plate part 37 First plane part 39 Second side plate part 40 Second upper plane part 41 First guide part 42 Second guide Part 43 First vertical downward positioning guide part 44 First horizontal direction positioning guide part 45 Second support part 46 Second upper regulating part 47 First vertical downward spring part 48 First horizontal spring part 49 First spring body part 50 Screw 51 First vertical upward spring portion 52 First support portion 53 First horizontal plate portion 54 Second vertical downward spring portion 55 Second spring main body portion 56 First transmission Target (worm wheel)
56a, 57a Insertion hole 57 Second transmission body (small gear)
58 Friction body 59 Protruding portion 59a Proximal end portion 60 Protruding prevention portion 61 Power transmission spring portion 62 Worm 63 First shaft 64 Disk-like portion 65 Second transmission structure 66 Groove portion 67 Convex portion 68 Insertion hole 68a of the power transmission spring portion 68a Inner edge portion 69 Third spring main body portion 70 Overhang portion 71 Pressing portion 72 Notch recess portion 73 Hatch portion 74 Panel angle setting mechanism 75 Position detection gear 76 Angle detector 77 Control portion 78 Second shaft

Claims (8)

A storage box for storing electronic devices;
A display panel disposed on the front side of the storage box;
A guide provided in the storage box;
The display panel is swingably provided, and a slide part capable of changing an inclination angle of the display panel by moving forward and backward along the guide part;
A drive unit;
In an electronic device storage box provided with an advancing / retreating drive mechanism that transmits the power generated by the drive unit to the slide unit via a power transmission mechanism and moves the slide unit back and forth.
The power transmission mechanism includes a first transmission body provided to rotate by power generated by the drive unit, a second transmission body provided to transmit power to the slide unit side, and the first transmission body. And a friction body sandwiched between the second transmission body, a slip-off preventing portion provided at a tip portion of a projecting portion provided in the second transmission body, and locking to the slip-off preventing portion A power transmission spring portion that presses the first transmission body against the second transmission body side
The power transmission spring portion is engaged with the anti-separation portion in a state of being located at the first rotation position with respect to the anti-separation portion, and the power transmission spring portion is located at a position other than the first rotation position. 2. An electronic device storage box, wherein the electronic device storage box is configured to be removable from the detachment prevention portion in a state of being located at two rotation positions. One or two or more convex portions or concave portions formed on the lower surface of the locking portion;
One or more of the protrusions of the locking part is formed on the power transmission spring part, and the power transmission spring part is located at the first rotation position and engages with the locking part. The electronic device storage box according to claim 1, further comprising one or more concave portions or convex portions with which the concave portion or the concave portion engages.   Insertion holes into which the locking portions can be inserted are formed at substantially central portions of the first transmission body and the power transmission spring portion, respectively, and the insertion holes formed in the power transmission spring portion, and The planar shape of the locking part is a substantially polygonal shape including a substantially triangular shape, and one or more concave parts or convex parts are formed on the inner edge part of the insertion hole formed in the power transmission spring part. The electronic device storage box according to claim 2, wherein the electronic device storage box is provided. The slide portion includes a first slide portion and a second slide portion that are formed substantially parallel to each other with a space therebetween, and the first and second slide portions are coupled to each other via a coupling portion. And
The guide part includes a first guide part for guiding the first slide part, and a second guide part for guiding the second slide part,
The first guide part includes a first vertical downward positioning guide part that performs vertical positioning of the first slide part, and a first horizontal positioning guide part that performs horizontal positioning of the first slide part. Have
The first slide portion is biased toward the first vertical downward positioning guide portion by the first vertical downward spring portion, and is moved toward the first horizontal positioning guide portion by the first horizontal spring portion. 4. The electronic device storage box according to claim 1, wherein the electronic device storage box is biased. The advance / retreat drive mechanism has a rack provided at an edge portion substantially parallel to the advancing / retreating movement direction of the first slide portion, and a gear serving as the second transmission body meshes with the rack,
5. The electronic device storage box according to claim 4, wherein the horizontal movement of the rack away from the second transmission body is restricted by the first horizontal positioning guide. The second guide part is for vertically positioning the second slide part,
6. The electronic device storage box according to claim 4, wherein the second slide portion is biased toward the second guide portion by a second vertical downward spring portion. A position detection gear provided in the advance / retreat drive mechanism and rotating in conjunction with advance / retreat movement of the slide portion;
An angle detector that generates an angle signal corresponding to an inclination angle of the display panel by detecting a rotation angle of the position detection gear;
A control unit capable of controlling the driving unit based on an angle signal generated by the angle detector and setting the display panel to a predetermined tilt angle or a desired tilt angle. The electronic device storage box according to claim 1.   The electronic device storage box according to any one of claims 1 to 7, wherein the electronic device storage box is for in-vehicle use.

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