JP2019119280A - Slide mechanism and electronic equipment - Google Patents

Abstract

In a fastening member in which a frictional force is repeatedly applied by a reciprocating motion, the occurrence of loosening is suppressed and the fastening force is maintained. A slider 41, a rack portion 43 that is disposed on the slider 41 and meshes with a spur gear 52 of a drive mechanism 50, a guide long hole 42 formed in the slider 41, and a casing 30 are disposed in the guide long hole. 42, a guide member 100 that guides the slider 41 in a state of being engaged with the peripheral surface of the slider 42. The slider 41 is engaged with the rack 30 by the spur gear 52 that is rotated by the drive mechanism 50 and the rack portion 43. The guide long hole 42 slides around the guide member 100 when the slider 41 advances and retracts. The guide member 100 has a threaded portion, and the threaded portion includes the spur gear 52 and the rack portion 43. In the guide member 100 located on one side in the direction in which the tooth portions 431 of the rack portion 43 are aligned with respect to the driving point P that engages with each other, a reverse screw is formed. [Selection] Figure 2

Description

  The present invention relates to a slide mechanism and an electronic device.

  For example, in an electronic device for a vehicle mounted on a vehicle such as an AV integrated car navigation system or a car audio, the slider advances and retracts the display panel with respect to the sub panel (see, for example, Patent Document 1).

Patent No. 5828301

  In an electronic device for a vehicle, for example, when the engine is started and stopped, when a storage medium is attached to or detached from the media slot, or when adjusting the display panel to an easy-to-see angle, the display panel You will advance and retreat. Frictional force acts repeatedly between the slider and a guide member that guides the slider's advancing and retracting motion by the advancing and retracting motion of the slider. It is desirable that the fastening member used at the position where the frictional force is repeatedly applied by the reciprocation operation maintain the fastening force by suppressing the occurrence of loosening due to the frictional force.

  The present invention has been made in view of the above, and an object of the present invention is to maintain the fastening force by suppressing the occurrence of loosening in a fastening member in which a frictional force repeatedly acts by a reciprocating motion.

  In order to solve the problems described above and to achieve the object, a slide mechanism according to the present invention includes a slider, a rack portion disposed on the slider and meshing with a gear of a drive mechanism, and the slide direction along the advancing and retracting direction of the slider. A guide elongated hole formed in the slider, and a guide member disposed in the housing and guiding the slider in a state engaged with the circumferential surface of the guide elongated hole, the slider being rotated by the drive mechanism The gear is engaged with the rack portion to move back and forth with respect to the housing, and when the slider moves back and forth with respect to the guide long hole, the circumferential surface slides on the guide member, and the guide member A guide member positioned on one side of the direction in which the teeth of the rack align with the drive point at which the gear and the rack mesh with each other; , It is formed in the opposite screw, characterized in that.

  In order to solve the problems described above and achieve the object, an electronic device according to the present invention includes a housing having an operation surface, a display unit that slides and opens and closes along the operation surface, a slider, and the slider A rack portion arranged and engaged with a gear of a drive mechanism, a guide long hole formed in the slider along the advancing and retracting direction of the slider, and a case disposed in the housing and engaged with a circumferential surface of the guide long hole A slide mechanism having a guide member for guiding the slider in a state, wherein the slider advances and retracts with respect to the housing by meshing the gear rotated by the drive mechanism and the rack portion; The circumferential surface of the guide elongated hole slides on the guide member when the slider moves back and forth, the guide member has a threaded portion, and the threaded portion is the gear and the threaded portion. In the guide member positioned on one side of the direction in which the teeth of the rack portion is aligned from the click portion and engages the drive point, it is formed in the opposite screw, characterized in that.

  ADVANTAGE OF THE INVENTION According to this invention, in the fastening member to which frictional force acts repeatedly by reciprocation, it is effective in the ability to suppress generation | occurrence | production of looseness and to maintain fastening force.

FIG. 1 is a perspective view showing an electronic device provided with a slide mechanism according to the embodiment. FIG. 2 is a partially enlarged view of the slide mechanism according to the embodiment. FIG. 3 is an enlarged cross-sectional view of the slide mechanism according to the embodiment.

  Hereinafter, an embodiment of an electronic device 10 having a slide mechanism 40 according to the present invention will be described in detail with reference to the accompanying drawings. Note that the present invention is not limited by the following embodiments.

  In the following description, each direction is defined in a state where the electronic device 10 for a vehicle is mounted in front of the driver's seat of the vehicle. The front-rear direction is a direction parallel to the traveling direction when the vehicle goes straight on, and the direction toward the driver's seat is referred to as "front" in the front-rear direction, and the direction toward the front windshield is referred to as "rear" in the front-rear direction. Let the front-back direction be the X-axis direction. The left-right direction is a direction orthogonal to the front-rear direction. Seeing from the driver's side, the left hand side is “left” and the right hand side is “right”. Let the left-right direction be the Y-axis direction. The up-down direction is a direction orthogonal to the front-rear direction and the left-right direction. The vertical direction is taken as the Z-axis direction. Therefore, the front-rear direction, the left-right direction, and the vertical direction are orthogonal in three dimensions.

  FIG. 1 is a perspective view showing an electronic device provided with a slide mechanism according to the embodiment. FIG. 2 is a partially enlarged view of the slide mechanism according to the embodiment. FIG. 3 is an enlarged cross-sectional view of the slide mechanism according to the embodiment. The electronic device 10 is, for example, an AV integrated car navigation system or a car audio. The electronic device 10 has a display unit 20 for displaying an image, a housing 30, a slide mechanism 40 having a guide member 100, and a drive mechanism 50.

  The display unit 20 is opened and closed by sliding relative to the housing 30. More specifically, the display unit 20 slides and opens and closes along a sub-panel of the electronic device 10 (not shown). In other words, the display unit 20 tilts and opens and closes the sub panel of the electronic device 10. More specifically, the display unit 20 is in a closed state when standing up along a direction parallel to the sub panel. When the display unit 20 is closed, the sub panel is covered by the display unit 20. The display unit 20 is in an open state when tilted with respect to the sub panel. When the display unit 20 is in the open state, the sub panel is exposed. In the present embodiment, the display unit 20 is in an open state with respect to the sub panel by the upper side sliding downward along the sub panel while the lower side moves away from the sub panel. The display unit 20 is closed with respect to the sub panel by the upper side sliding upward along the sub panel while the lower side approaches the sub panel.

  The display unit 20 includes a display panel 21 disposed on the surface facing the driver's seat, a pair of rotation shafts 22 disposed below the back surface opposite to the surface, and a pair of guides disposed above the back surface. And a roller 23.

  The display panel 21 is a display including, for example, a liquid crystal display (LCD) or an organic electro-luminescence (EL) display. The display panel 21 displays an image based on an image signal output from a reading unit (not shown). The display panel 21 is disposed with its surface facing the driver's seat.

  The pair of rotation shafts 22 are disposed apart in the Y-axis direction. The pair of rotation shafts 22 are arranged on the same axis. The rotation axis 22 is formed in a cylindrical shape having an axis along a direction parallel to the Y-axis direction. The pair of rotary shafts 22 is rotatably coupled to the slider 41 of the slide mechanism 40. The pair of rotary shafts 22 are advanced and retracted relative to the sub panel by the slider 41.

  The pair of guide rollers 23 are disposed apart in the Y-axis direction. The pair of guide rollers 23 are arranged on the same axis. The guide roller 23 is formed in a cylindrical shape having an axis along a direction parallel to the Y-axis direction. The pair of guide rollers 23 are engaged with the guide grooves formed in the sub panel of the electronic device 10. In other words, the pair of guide rollers 23 slide along the guide grooves.

  The housing 30 is attached to the vehicle. In the housing 30, each member of the electronic device 10 is disposed. In the present embodiment, the housing 30 is described as being formed of a plate material on a plane disposed in parallel to the horizontal plane of the vehicle, but is not limited thereto.

  The slide mechanism 40 advances and retracts in the X axis direction with respect to the housing 30. The slide mechanism 40 has a slider 41, a guide long hole 42, a rack portion 43, and a guide member 100 described later.

  The slider 41 is driven by the drive mechanism 50, and the front end moves forward and backward with respect to the sub panel. The slider 41 is disposed on the left side (right side in FIG. 1) as viewed from the driver's seat, and is disposed on the right side (left side in FIG. 1) facing the wall 41a and extending along the X axis direction. The wall portion 41b is integrally formed with the wall portion 41c extending along the Y-axis direction by connecting the wall portion 41a and the wall portion 41b. The slider 41 is formed in a U-shape by the wall portion 41a, the wall portion 41b, and the wall portion 41c when viewed in the Z-axis direction. In the wall portion 41a, a guide long hole 42 and a rack portion 43 are formed. The left rotation shaft 22 is rotatably disposed at the front end of the wall 41a. At the front end of the wall 41b, the right rotation shaft 22 is rotatably disposed.

  The guide long hole 42 is formed in the wall portion 41 a along the X-axis direction. The guide long hole 42 is formed to have a length in the X-axis direction equal to or greater than the length by which the slider 41 slides relative to the housing 30. The guide member 100 is inserted through the guide long hole 42. The guide long hole 42 guides the forward and backward movement of the slider 41 together with the guide member 100. The width of the guide long hole 42 in the Y-axis direction is formed to such an extent as to generate a frictional force with the outer periphery of the guide member 100 when the slider 41 moves back and forth. In other words, the circumferential surface of the guide long hole 42 slides on the guide member 100 when the slider 41 moves back and forth. The circumferential surface portion on the left side of the guide long hole 42 is referred to as 42a, and the circumferential surface portion on the right side is referred to as 42b.

  The rack portion 43 is disposed at the right peripheral portion of the wall portion 41a. The rack portion 43 has a tooth portion 431 that meshes with a tooth portion 521 of a spur gear (hereinafter referred to as “spur gear”) 52 of the final stage of the drive mechanism 50. The rack unit 43 advances and retracts with respect to the housing 30 when the drive mechanism 50 is driven and the spur gear 52 rotates. The guide member 41 advances and retracts in conjunction with the advancing and retracting motion of the rack portion 43. The position at which the teeth 431 of the rack 43 and the teeth 521 of the spur gear 52 mesh with each other is referred to as a drive point P.

  The slide mechanism 40 configured in this manner pushes the pair of rotation shafts 22 of the display unit 20 forward by the forward movement of the slider 41. At this time, the pair of guide rollers 23 of the display unit 20 is slid downward along the guide grooves of the sub panel. By the operation of the slide mechanism 40, the upper side of the display unit 20 is slid to the lower side of the housing 30 while the lower side of the display unit 20 is separated from the housing 30. The slide mechanism 40 pulls back the pair of rotation shafts 22 of the display unit 20 by the backward movement of the slider 41. At this time, the pair of guide rollers 23 of the display unit 20 is slid upward along the guide grooves. By the operation of the slide mechanism 40, the upper side of the display unit 20 is slid to the upper side of the housing 30 while the lower side of the display unit 20 approaches the housing 30.

  The drive mechanism 50 drives the slide mechanism 40. The drive mechanism 50 has a motor 51 and a plurality of gears including a spur gear 52 meshing with the rack portion 43. In the present embodiment, the drive mechanism 50 includes a spur gear 52 and has three gears.

  The motor 51 is a drive source that rotates a plurality of gears. The motor 51 is a drive source that drives the slide mechanism 40.

  The spur gear 52 is rotated by the motor 51 via a plurality of gears. The spur gear 52 has a tooth portion 521 that meshes with the rack portion 43 of the slide mechanism 40. The spur gear 52 rotates when the motor 51 is driven. The slide mechanism 40 moves forward and backward with respect to the housing 30 while the teeth 521 of the rotating spur gear 52 and the teeth 431 of the rack 43 mesh with each other at the drive point P. In other words, when the final stage spur gear 52 of the drive mechanism 50 rotated by the drive mechanism 50 meshes with the rack portion 43, the slider 41 advances and retracts with respect to the housing 30. In the present embodiment, the spur gear 52 rotates counterclockwise when the slide mechanism 40 is advanced. In the present embodiment, the spur gear 52 rotates clockwise when the slide mechanism 40 is retracted.

  The guide member 100 is disposed in the housing 30 and guides the forward and backward movement of the slider 41 with respect to the housing 30 in a state of being engaged with the circumferential surface of the guide long hole 42. In the present embodiment, two guide members 100 are arranged at intervals in the X-axis direction. The guide member 100 is fixed to the housing 30. The guide member 100 engages with the guide long hole 42 of the slider 41. The guide member 100 has a screw portion 101, a roller portion 102, a stud portion 103 and a spring portion 104. The screw portion 101, the roller portion 102, the stud portion 103, and the spring portion 104 are assembled on the same axis.

  The screw portion 101 has a male screw portion 101a. The male screw portion 101 a is screwed with the female screw portion 103 a of the stud portion 103. The screw portion 101 fixes the roller portion 102 and the spring portion 104.

  The roller portion 102 engages with the guide long hole 42 and regulates backlash between the guide member 100 and the slider 41. The roller portion 102 is formed in a cylindrical shape. The shaft portion 103 b of the stud portion 103 is fitted in the radially inner hole portion 102 a of the roller portion 102. The roller portion 102 contacts the circumferential surface portion 42 a and the circumferential surface portion 42 b of the guide long hole 42 when the slider 41 moves back and forth with respect to the housing 30. In other words, when the slider 41 moves forward and backward, the circumferential surface portion 42 a and the circumferential surface portion 42 b of the guide long hole 42 slide on the roller portion 102. When the slider 41 moves back and forth, a frictional force acts between the roller portion 102 and the circumferential surface 42 a and the circumferential surface 42 b of the guide long hole 42.

  The stud portion 103 is fixed to the housing 30. More specifically, the stud portion 103 fixes the roller portion 102 and the spring portion 104 to the housing 30. The stud portion 103 is formed in a cylindrical shape, and a female screw portion 103a is formed on the inner peripheral surface. The female screw portion 103 a is screwed with the male screw portion 101 a of the screw portion 101.

  The spring portion 104 functions as a damper that reduces the load acting on the roller portion 102. The spring portion 104 prevents the roller portion 102 from coming off the stud portion 103. The screw portion 101 is inserted through the spring portion 104. The upper end portion of the spring portion 104 is in contact with the lower end portion of the head portion of the screw portion 101. The lower end portion of the spring portion 104 is in contact with the upper end portion of the roller portion 102. The spring portion 104 is compressed in a state in which the screw portion 101 and the female screw portion 103 a of the stud portion 103 are fastened. Thus, the spring portion 104 biases the roller portion 102 downward.

  In the guide member 100 configured as described above, when the slider 41 moves forward and backward with respect to the housing 30, the circumferential surface portion 42a and the circumferential surface portion 42b of the guide long hole 42 slide while contacting the roller portion 102.

  In the present embodiment, a guide member (hereinafter referred to as a “front guide member”) 100 disposed on the front side in the X-axis direction is located on the front side in the X-axis direction from the drive point P. In the front guide member 100, a male screw portion 101a is formed in a reverse screw.

  In the present embodiment, a guide member (hereinafter, referred to as “rear guide member”) 100 disposed on the rear side in the X-axis direction is located in the vicinity of the driving point P. In the rear guide member 100, a male screw portion 101a is formed as a positive screw.

  Next, the operation and action of the slide mechanism 40 at the time of the opening and closing operation of the electronic device 10 configured as described above will be described.

  First, the opening operation of the electronic device 10 will be described. When the detection signal in which the operation of opening the display unit 20 is detected is input, the electronic device 10 causes the slide mechanism 40 to open the display unit 20. More specifically, the pair of rotation shafts 22 of the display unit 20 is pushed forward by the slider 41 of the slide mechanism 40. At this time, in the display unit 20, the pair of guide rollers 23 is slid downward along the guide grooves of the sub panel. As a result, the lower side of the display unit 20 is slid away from the housing 30, the upper side is slid to the lower side of the housing 30, and the display unit 20 is in an open state with respect to the housing 30. The display unit 20 is opened to expose the sub panel.

  The wall of the slider 41 is formed by the friction between the teeth 431 of the rack 43 and the teeth 521 of the spur gear 52 on the front side in the X-axis direction in which the teeth 431 of the rack 43 align with the drive point P. A rotational force acting in the same direction acts on 41a in accordance with the counterclockwise rotation of the spur gear 52 to rotate. As a result, a counterclockwise rotational force acts on the roller portion 102 through the circumferential surface portion 42 a of the guide long hole 42 on the guide member 100 disposed on the front side of the drive point P. The counterclockwise rotational force acting on the roller portion 102 acts on the male screw portion 101 a of the screw portion 101 via the stat portion 103. Thus, a counterclockwise rotational force acts on the male screw portion 101 a of the guide member 100 disposed on the front side of the drive point P.

  On the rear side in the X-axis direction from the drive point P, the friction between the teeth 431 of the rack 43 and the teeth 521 of the spur gear 52 causes the wall 41a of the slider 41 to rotate counterclockwise. A rotational force in the same direction acts to follow and rotate. As a result, a clockwise rotational force acts on the roller portion 102 through the circumferential surface portion 42 b of the guide long hole 42 on the guide member 100 disposed on the rear side of the drive point P. The clockwise rotational force acting on the roller portion 102 acts on the male screw portion 101 a of the screw portion 101 via the stat portion 103. Thus, a clockwise rotational force acts on the male screw portion 101 a of the guide member 100 disposed on the rear side of the drive point P.

  Subsequently, the closing operation of the electronic device 10 will be described. When the detection signal in which the operation of closing the display unit 20 is detected is input, the electronic device 10 causes the slide mechanism 40 to close the display unit 20. More specifically, the sliders 41 of the slide mechanism 40 pull back the pair of rotation shafts 22 of the display unit 20. At this time, the pair of guide rollers 23 of the display unit 20 is slid upward along the guide grooves of the sub panel. As a result, while the lower side of the display unit 20 approaches the housing 30, the upper side of the display unit 20 is slid to the upper side of the housing 30, and the display unit 20 is closed with respect to the housing 30. The display unit 20 is closed to cover the sub panel.

  At the front side of the drive point P in the X-axis direction, the friction between the teeth 431 of the rack 43 and the teeth 521 of the spur gear 52 causes the wall 41a of the slider 41 to rotate clockwise. A rotational force in the same direction acts to follow and rotate. Thereby, on the guide member 100 disposed on the front side of the drive point P, a counterclockwise rotational force acts on the roller portion 102 through the circumferential surface portion 42 b of the guide long hole 42. The counterclockwise rotational force acting on the roller portion 102 acts on the male screw portion 101 a of the screw portion 101 via the stat portion 103. Thus, a counterclockwise rotational force acts on the male screw portion 101 a of the guide member 100 disposed on the front side of the drive point P.

  On the rear side of the drive point P in the X-axis direction, the friction between the teeth 431 of the rack 43 and the teeth 521 of the spur gear 52 causes the wall 41a of the slider 41 to rotate clockwise. In the same direction, it tries to rotate and follow it. As a result, a clockwise rotational force acts on the roller portion 102 via the circumferential surface portion 42 a of the guide long hole 42 on the guide member 100 disposed on the rear side of the drive point P. The clockwise rotational force acting on the roller portion 102 acts on the male screw portion 101 a of the screw portion 101 via the stat portion 103. Thus, a clockwise rotational force acts on the male screw portion 101 a of the guide member 100 disposed on the rear side of the drive point P.

  From these, when the slider 41 advances and the display panel 21 is in the open state, and when the slider 41 is retracted and the display panel 21 is in the closed state, both are forward of the drive point P in the X axis direction. When the slide mechanism 40 advances and retracts, a counterclockwise rotational force acts on the male screw portion 101 a of the guide member 100 located at the position of the guide member 100. Therefore, when the slide mechanism 40 moves forward and backward, the male screw 101a of the guide member 100, which is always located on the front side in the X-axis direction from the drive point P, has a reverse screw that tightens when it rotates counterclockwise when viewed from above the head. use. When the male screw portion 101a of the guide member 100, which is always located on the front side in the X-axis direction from the drive point P, is a reverse screw, a rotational force in a direction in which the screw is tightened always acts when the slide mechanism 40 moves forward and backward.

  In addition, when the slider 41 advances to open the display panel 21 and when the slider 41 retracts to close the display panel 21, both are further to the rear in the X axis direction than the driving point P. When the slide mechanism 40 advances and retracts, a clockwise rotational force acts on the male screw portion 101 a of the guide member 100 located at the position of the guide member 100. Therefore, when the slide mechanism 40 moves forward and backward, the male screw 101a of the guide member 100, which is always located rearward of the drive point P in the X-axis direction, tightens a positive screw that tightens when the head is viewed clockwise. use. When the male screw portion 101a of the guide member 100, which is always positioned rearward of the drive point P in the X-axis direction, is a positive screw, a rotational force in a direction in which the screw is tightened always acts when the slide mechanism 40 moves forward and backward. .

  Furthermore, the male screw portion 101a of the guide member 100 located in the vicinity of the drive point P, and more specifically, within the stroke range of the slider 41 from the drive point P, rotates clockwise and counterclockwise when the slider 41 advances and retracts. Both rotational forces act. Therefore, the male screw portion 101a of the guide member 100 located in the vicinity of the drive point P may be a positive screw or a reverse screw.

  In the present embodiment, in the guide member 100 on the front side, a male screw portion 101a is formed in a reverse screw. For this reason, a rotational force in a direction in which the screw is tightened always acts on the front guide member 100 when the slide mechanism 40 advances and retracts.

  As described above, in the present embodiment, the male screw portion 101a of the guide member 100, which is always located forward of the drive point P in the X-axis direction, is a reverse screw. Further, in the present embodiment, the male screw portion 101a of the guide member 100, which is always positioned rearward of the drive point P in the X-axis direction, is a positive screw. According to the present embodiment, the rotational force in the direction in which the screw is tightened always acts on the guide member 100, so that the looseness of the guide member 100 can be suppressed. In this manner, in the present embodiment, it is possible to maintain the fastening force by suppressing the occurrence of loosening in the guide member 100 on which the frictional force acts repeatedly due to the reciprocation like the forward and backward movement of the slider 41.

  In the present embodiment, in order to suppress the occurrence of loosening in the guide member 100, it is not necessary to process an existing member or to additionally attach another member. The present embodiment can be easily applied to existing electronic devices.

  The electronic device 10 according to the present invention has been described above, but may be implemented in various different modes other than the above-described embodiment. The guide member 100 for guiding the advancing and retracting motion of the slider 41 with respect to the housing 30 described above is an example, and can be applied to a fastening member to which a frictional force acts repeatedly by the reciprocating motion.

  In the above description, the rack portion 43 is disposed adjacent to the guide long hole 42, and the rack portion 43 and the drive mechanism 50 are disposed on the right side (left side in FIG. 1) of the wall portion 41a. However, the rack portion 43 may not be disposed adjacent to the guide long hole 42. For example, the guide long hole 42 may be disposed in the wall portion 41a, and the rack portion 43 and the drive mechanism 50 may be disposed on the left side (right side in FIG. 1) of the wall portion 41b. In this case, assuming that the slider 41 is linearly extended, one side of the direction in which the teeth 431 of the rack 43 are aligned is defined starting from the driving point P. Thus, all the guide members 100 engaged with the guide long holes 42 are located on the same side (one side) in the direction in which the teeth 431 of the rack 43 are aligned with the drive point P. Thus, in this case, all the guide members 100 may be, for example, positive screws.

  The configuration of the display unit 20 described in the above embodiment is an example, and the display unit 20 may be configured to slide along the sub panel.

DESCRIPTION OF SYMBOLS 10 Electronic equipment 20 Display unit 21 Display panel 30 Housing | casing 40 Slide mechanism 41 Slider 42 Guide long hole 42a Left peripheral surface part 42b Right peripheral surface part 43 Rack part 50 Drive mechanism 51 Motor 52 Spur gear 100 Guide member 101 Screw part 101a male Screw part 102 Roller part 103 Stud part 103a Female thread part 104 Spring part P Drive point

Claims (7)

With the slider,
A rack portion disposed on the slider and engaged with a gear of the drive mechanism;
A guide long hole formed in the slider along the direction of movement of the slider;
A guide member disposed in a housing and guiding the slider in a state engaged with the circumferential surface of the guide long hole;
Equipped with
The slider advances and retracts with respect to the housing by meshing the gear rotated by the drive mechanism and the rack portion.
The circumferential surface of the guide elongated hole slides on the guide member when the slider moves back and forth.
The guide member has a threaded portion,
The screw portion is formed as a reverse screw in a guide member positioned on one side of the direction in which the teeth of the rack align with respect to a driving point at which the gear and the rack mesh with each other.
Slide mechanism characterized by   The slide mechanism according to claim 1, wherein the rack portion is disposed adjacent to the guide long hole.   The slide mechanism according to claim 1 or 2, wherein the rack portion is arranged with teeth arranged in the advancing and retracting direction of the slider.   The said screw part is formed in a reverse screw in the guide member located in the front side of the advance / retraction direction of the said slider from the said drive point, when the said slider advances / retracts. Slide mechanism.   The said screw part is formed in a positive screw in the guide member located in the back side of the advance / retraction direction of the said slider from the said drive point, when the said slider advances / retracts. Slide mechanism described.   The slide mechanism according to any one of claims 1 to 5, wherein the slider advances and retracts a display unit of an electronic device for a vehicle with respect to a housing of the electronic device. A housing having an operating surface,
A display unit which slides and opens and closes along the operation surface;
With the slider,
A rack portion disposed on the slider and engaged with a gear of the drive mechanism;
A guide long hole formed in the slider along the direction of movement of the slider;
A slide member disposed in the housing and guiding the slider in a state of being engaged with the circumferential surface of the guide long hole;
Equipped with
The slider advances and retracts with respect to the housing by meshing the gear rotated by the drive mechanism and the rack portion.
The circumferential surface of the guide elongated hole slides on the guide member when the slider moves back and forth.
The guide member has a threaded portion,
The screw portion is formed in a reverse screw in a guide member positioned on one side of the direction in which the teeth of the rack align with respect to a driving point at which the gear and the rack mesh with each other.
An electronic device characterized by

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