JP2008207590A - Collapsible structure of monitor device for vehicle seat - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To realize a compact storage condition of a monitor device installed on a top of a seatback. <P>SOLUTION: A monitor device 1 has a pedestal 20 installed and fixed to a top of a seatback 4, and a monitor part 40 with a monitor 11 built therein while a display surface 10 for displaying an image is exposed on an outer surface. The monitor part 40 is pivotably connected to the pedestal 20 via a hinge 55, and turnable in the longitudinal direction of a vehicle between a service posture erected from the pedestal 20 and a storage posture forwardly collapsed to the forward side of the vehicle. The hinge 55 forming a turning shaft of the monitor part 40is provided at the forward end of the pedestal 20, and the monitor part 40 is turnable at an angle of ≥90° from the service posture. When the monitor part 40 is forwardly collapsed in the storage posture, the monitor part 40 is in a hanging state from the hinge 55 at the forward position of the vehicle. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a collapsible structure for a vehicle seat monitoring device that is attached to the top of a seat back of a vehicle seat and has a display surface facing the rear of the vehicle.

  As this type of monitor device, for example, there is Patent Document 1. The monitor device of Patent Document 1 includes a pedestal portion that is installed and fixed on the top of a seat back, and a monitor portion that incorporates a monitor with the display surface exposed to the outer surface. The monitor unit is pivotally connected to the pedestal part via a hinge, and is used in a posture in which the display surface stands up from the pedestal part and faces the rear side of the vehicle, and a retracted posture in which the display unit is tilted forward to the front side of the vehicle with the hinge as a pivot. The vehicle can be rotated in the vehicle longitudinal direction. In the use posture, the monitor unit is located on the back surface of the headrest, and the display surface faces the rear of the vehicle. On the other hand, in the case of the retracted posture, after removing the headrest from the seat back, the monitor unit is tilted 90 degrees toward the front of the vehicle with the hinge arranged at the rear end of the pedestal as a pivot, and the pedestal is placed on the pedestal. It is configured to be laid down.

US Pat. No. 6,698,832

  However, when the monitor device of Patent Document 1 is in the retracted position, the monitor unit is simply tilted forward by 90 degrees and placed on the pedestal unit. Protrudes into the way and gets in the way. Moreover, although the hinge which connects a monitor part and a base part is distribute | arranged to the rear-end part of a base part, since it protrudes also to the front side of the seat back by the height of a monitor part, this also becomes an obstacle.

  In order to solve this problem, it is conceivable to reduce the thickness and height of the monitor part. However, there is a technical limit to reducing the thickness of the monitor part. Becomes smaller and the image becomes difficult to see. In the first place, when the monitor is placed on the pedestal, the solution is not fundamental.

  Therefore, the present invention is to solve the above-described problems, and an object of the present invention is to make the storage state of the monitor device installed at the top of the seat back as compact as possible.

  In order to achieve the above object, a first invention relates to a retractable structure of a vehicle seat monitoring device attached to a seat back top portion of a vehicle seat. This monitor device has a pedestal portion that is installed and fixed on the top of the seat back, and a monitor portion that incorporates a monitor with a display surface for displaying an image exposed to the outside. The monitor unit is pivotally connected to the pedestal part via a hinge, and is tilted forward to the front side of the vehicle with the hinge as a rotation axis and a use posture that stands up from the pedestal part and the display surface faces the vehicle rear side. The vehicle can be rotated in the vehicle longitudinal direction between the retracted posture. A hinge serving as a pivot shaft of the monitor unit is provided at a front end of the pedestal unit, so that the monitor unit can be rotated 90 degrees or more from a use posture. When the vehicle is moved forward to the retracted posture, the monitor unit is suspended from the hinge at a position in front of the vehicle.

  The shape of the monitor part or the pedestal part here is not particularly limited. Therefore, in the state where the monitor unit hangs down in the retracted position, for example, the front and back lengths of the pedestal part and the top of the seat back are substantially the same dimension, and the monitor unit hangs obliquely downward in contact with the front surface of the seat back. In some cases, the front end of the pedestal is slightly protruded forward from the front end of the top of the seat back, and the monitor portion is hanging in the air without contacting the front of the seat back. The state in which the monitor unit comes into contact with the front surface of the seat back and hangs obliquely downward includes, for example, a case where a part of the flat monitor unit is in contact with the front surface of the seat back. Also, in the air hanging state where the monitor part does not contact the front surface of the seat back, in addition to the case where the front and back length of the pedestal part is larger than the front and back length of the seat back top part, the base part and the top part of the seat back There are also cases where the pedestal is shifted to the front side of the vehicle and disposed on the top of the seat back while the front and rear lengths are substantially the same size.

  According to a second aspect of the present invention, in the tiltable structure of the monitor device according to the first aspect, the front surface of the monitor unit is formed in a shape corresponding to the front shape of the seat back. Thus, when the monitor unit is tilted forward to the retracted position, the front surface of the monitor unit comes into contact with the front surface of the seat back.

  According to a third aspect of the present invention, in the tiltable structure of the monitor device according to the first or second aspect, the display surface is vertical when the monitor unit is tilted forward to the retracted position. As long as the display surface, that is, the back surface of the monitor unit is vertical, the monitor unit itself may be inclined depending on the shape of the monitor unit.

  According to the present invention, since the hinge serving as the pivot shaft of the monitor unit is provided at the front end of the pedestal unit, the monitor unit does not come into contact with the pedestal unit when the monitor unit is tilted forward to the retracted position. It can be rotated 90 degrees or more. Therefore, when the monitor unit is tilted forward to the retracted position, the monitor unit hangs down at the vehicle front position from the hinge. As a result, when the monitor portion is in the retracted position, there is nothing on the pedestal portion, so that the upper part of the seat back can be cleaned. Therefore, a wider front view of the occupant seated on the rear seat can be secured. In addition, since the monitor unit is in a suspended state, the amount of projection of the seat back toward the front side is reduced, and the monitor unit can be stored compactly without being disturbed as much as possible.

  If the front part of the monitor part is made to correspond to the front part shape of the seat back, when the monitor part is moved forward to the retracted position, there is no useless gap between the monitor part and the seat back, and the efficiency It can be stored compactly well.

  At this time, if the display surface, that is, the back of the monitor unit is vertical, the amount of projection of the seat back to the front side is only the thickness of the monitor unit and can be kept to a minimum, so the storage posture is more effective Can be made compact. Therefore, for example, even when a large load is placed on the seat cushion in a state where the monitor device is stored, the monitor device can be stably placed without being obstructed.

  Hereinafter, embodiments of a retractable structure of a monitor device according to the present invention will be described with reference to the drawings. However, the present invention is not limited thereto, and various modifications can be made without departing from the scope of the present invention. It is.

  FIG. 1 is a perspective view of a vehicle seat 2 in a use posture when the monitor device 1 is viewed from the vehicle rear side. In FIG. 1, the monitor device 1 is suitably used for a vehicle seat 2 such as an automobile. The vehicle seat 2 is a general seat having a seat cushion 3 as a seating portion, a seat back 4 as a backrest, and a headrest 5. The monitor device 1 of the present embodiment is disposed at the top (upper end) of the seat back 4, and the headrest 5 from above the monitor device 1 with the display surface 10 of the monitor device 1 exposed to the vehicle rear side. Is mounted (see FIG. 2). Thus, the occupant can visually recognize the image of the monitor device 1 from the vehicle rear side of the vehicle seat 2.

  FIG. 2 is a perspective view of the monitor device 1 as viewed from the front side of the vehicle. 1 and 2, the monitor device 1 includes a pedestal portion 20 that is installed and fixed on the top of the seat back 4, and a monitor portion 40 that incorporates the monitor 11 with the display surface 10 that displays an image exposed to the outside. Have. The headrest 5 can be mounted above the monitor device 1 by inserting the stay 6 into an insertion hole 21 provided at a predetermined position of the pedestal portion 20. As shown in FIG. 3, the monitor unit 40 is pivotally connected to the pedestal unit 20 via a hinge shaft 55, and the use posture in which the display surface 10 faces the vehicle rear side with the display surface 10 facing the vehicle rear side. Can be rotated in the vehicle front-rear direction between the retracted posture forwardly moved to the front side of the vehicle. In FIG. 3, the left side of the drawing is the rear of the vehicle, and the right side of the drawing is the front of the vehicle.

  First, the monitor device 1 will be described in detail. FIG. 4 shows an exploded perspective view of the monitor device 1. In FIG. 4, the left side of the drawing is the front of the vehicle, and the right side of the drawing is the rear of the vehicle. As shown in FIG. 4, the pedestal unit 20 includes a metal pedestal frame 22, an upper surface cover 23 and a lower surface cover 24 that sandwich the metal frame 22 from above and below, a hinge cover 25 disposed on the front surface of the pedestal unit 20, and a monitor unit 40. The fitting receiving member 26 that holds the use posture of the headrest 5 and the button 27 that permits and fixes the insertion of the headrest 5. The constituent members other than the base frame 22 are synthetic resin molded products. On the other hand, the monitor unit 40 includes a metal support frame 41 pivotally connected to the pedestal frame 22, an L-shaped cover 42 having an L-shaped cross section covering the upper surface and the front surface of the support frame 41, and a lower surface of the support frame 41. A lower cover 43 to cover, a metal bracket 45 pivotally connected to the support frame 41 to fix the monitor 11, and a front cover that covers the bracket 45 and the front side of the monitor 11 while covering the left and right columns 41 a of the support frame 41. 47, the back cover 48 that covers the bracket 45 and the monitor 11 with the display surface 10 of the monitor 11 exposed to the outside, the two lower surface covers 49 and 50 that cover the lower surface of the monitor 11, and the base 20 By being fitted to the receiving member 26, it is configured with a fitting pin 51 that holds the use posture of the monitor unit 40. Components other than the support frame 41, the bracket 45, and the monitor 11 are synthetic resin molded products. Reference numeral 60 denotes a metallic inner frame disposed inside the seat back 4. Two left and right support holders 61 through which the stay 6 of the headrest 5 is inserted are provided at the top of the inner frame 60. An upward bifurcated pedestal bracket 62 for fixing the pedestal portion 20 is provided.

  Next, a procedure for installing and fixing the monitor device 1 to the seat back 4 will be described. First, the base frame 22 in which the fitting receiving member 26 is screwed in advance in the screw hole 22c and the lower surface cover 24 are screwed in the screw holes 22b and 24b. With the lower surface cover 24 fixed to the pedestal frame 22, the support holders 61, 61 of the inner frame 60 and the legs of the pedestal bracket 62 are respectively inserted into the fixing holes 24 a, 24 a drilled on the left and right sides of the lower surface cover 24. The pedestal frame 22 is positioned and fixed to the pedestal bracket 62 by covering it in the passed state. The pedestal frame 22 and the pedestal bracket 62 are fixed to each other through screw holes 22a and 62a. When the pedestal frame 22 can be fixed to the pedestal bracket 62, the button 27 is attached to the lower surface cover 24 via a spring (not shown), and then the upper surface cover 23 is covered with the pedestal frame 22, and the screw holes 22e. At 23a, the base frame 22 and the upper surface cover 23 are screwed. At the same time, the fitting protrusion 24 c of the lower surface cover 24 is fitted into a fitting hole (not shown) of the upper surface cover 23 to fix the upper surface cover 23 and the lower surface cover 24. Thereby, the pedestal 20 can be installed on the top of the seat back 4. At this time, the insertion hole 21 of the upper surface cover 23 faces the support holder 61 of the inner frame 60, so that the stay 6 of the headrest 5 can be inserted into the support holder 61 through the insertion hole 21. Further, the fitting receiving member 26 is exposed to the outside from the opening 23 b of the upper surface cover 23.

  Next, the fitting pin 51 is first screwed in advance in the screw holes 41b and 51a from the lower surface of the support frame 41. After that, the fitting protrusion 43a of the lower surface cover 43 is fitted into the fitting hole 41c of the support frame 41, and the lower surface cover 43 is fixed to the support frame 41 in the screw holes 41d and 43b. At this time, the fitting pin 51 is exposed from the opening 43c of the lower surface cover 43 to the outer surface. Further, an L-shaped cover 42 is attached from the front surface of the support frame 41. The L-shaped cover 42 is a member having an L-shaped cross section that includes a horizontal plate portion 42a and a vertical plate portion 42b that stands integrally from the rear end of the horizontal plate portion 42a. Reference numeral 42c is a reinforcing rib of the vertical plate portion 42b. A stay 41 f is bridged above the left and right columns 41 a and 41 a of the support frame 41. Then, the front end of the horizontal plate portion 42 a of the L-shaped cover 42 is in an oblique posture in which the front end is lifted upward, and the fitting piece 42 d of the L-shaped cover 42 is fitted into the fitting hole 41 g of the stay 41 f of the support frame 41. Next, the L-shaped cover 42 is attached to the support frame 41 by fitting the fitting protrusion 42e of the L-shaped cover 42 into the fitting hole 41h of the supporting frame 41 while returning the horizontal plate portion 42a of the L-shaped cover 42 to the horizontal. Install and fix. At this time, the semicircular bag-like hinge cover portion 42f provided at the front end of the horizontal plate portion 42a of the L-shaped cover 42 covers the hinge portion 41e of the support frame 41, so that the pedestal portion 20 and the monitor portion 40 The hinge interposed between the two is invisible from the outside. The horizontal width of the horizontal plate portion 42 a and the hinge cover portion 42 f of the L-shaped cover 42 is set to be slightly larger than that of the hinge portion 41 e of the support frame 41.

  Next, the monitor 11 is screwed to the bracket 45 at the screw holes 11a and 45a, and the back cover 48 is covered with this. At that time, the lower surface covers 49 and 50 are fixed to the rear surface cover 48 in advance. The lower surface cover has a two-sheet configuration of a lower surface cover 49 positioned above and a lower surface cover 50 positioned below the lower surface cover 49, and is slidable with respect to each other in a state where both 49 and 50 are laminated. ing. Specifically, the upper lower surface cover 49 has an inverted L-shaped cross section composed of a horizontal plate portion 49a and a vertical plate portion 49b integrally extending downward from the rear end thereof, and the horizontal plate portion 49a. Is formed with an elongated guide groove 49c in the longitudinal direction of the vehicle, and a vertical hole 49b with a screw hole 49d. The lower lower surface cover 50 is a substantially flat plate member, and an engagement protrusion 50a is formed on the upper surface of the lower lower surface cover 50 at a position corresponding to the guide groove 49c of the upper lower surface cover 49. Then, the lower surface cover 49 is screwed to the lower inner side of the rear cover 48 in the screw hole 49d (see FIG. 3). Next, the lower surface covers 49 and 50 can be laminated by engaging the engaging protrusions 50 a of the lower lower surface cover 50 with the guide grooves 49 c of the upper lower surface cover 49. At this time, the engagement protrusion 50a is slidably guided back and forth in the guide groove 49c, so that the lower surface covers 49 and 50 are slidable with respect to each other. In this state, the bracket 45 is attached to the support frame 41. The attachment is possible by inserting a hinge bar (not shown) through the hinge 41i provided at the upper part of the left and right support posts 41a of the support frame 41 and the hinge 45b provided at the upper left and right ends of the bracket 45. is there.

  When the bracket 45 to which the monitor 11 is fixed is attached to the support frame 41, the front cover 47 is covered and the front cover 47 and the rear cover 48 are fixed. Specifically, the front cover 47 has a portal shape, and the left and right side walls have an inner and outer two-plate structure including an inner plate 47a and an outer plate 47b spaced outward from the inner plate 47a by a predetermined distance. The lower end of the inner plate 47a is formed with a notch 47c from the rear side to the front side. Then, the front cover 47 is positioned in a state where the left and right support columns 41 a of the support frame 41 are arranged between the left and right inner plates 47 a and the outer plate 47 b of the front cover 47. At this time, the top plate 47 d of the front cover 47 is adjacent to the upper side of the vertical plate portion 42 b of the L-shaped cover 42, and the vertical plate portion 42 b of the L-shaped cover 42 is the left and right inner plates 47 a. It is just within 47a. Further, bulging portions 47 e bulging on the upper left and right of the front cover 47 cover and hide the hinge 45 b of the bracket 45. Then, the front cover 47 and the rear cover 48 are fixed by fitting the fitting protrusion 48a of the rear cover 48 into the fitting hole 47f of the front cover 47 and then screwing it with the screw hole 47g. At this time, the two lower surface covers 49 and 50 are housed in a stacked state in a notch 47 c below the inner plate 47 a of the front cover 47. Thereby, the support part 40 is assembled.

  Finally, the support portion 40 is attached to the pedestal portion 20 that is installed and fixed on the top of the seat back 4. Specifically, the support frame 41 is disposed so as to be placed on the pedestal frame 22 from above, and the hinge portion 41e of the support frame 41 is disposed between the left and right hinge portions 22d and 22d of the pedestal frame 22. Then, a round bar-like hinge shaft 55 (not shown in FIG. 4) may be inserted through both hinge portions 22d and 41e. This portion serves as a rotation axis on which the monitor unit 40 rotates with respect to the pedestal unit 20. When the support portion 40 is attached to the pedestal portion 20, the hinge cover 25 is finally fitted and fixed across the upper surface cover 23 and the lower surface cover 24 to shield the hinge shaft 55. At this time, the hinge cover portion 42 f of the L-shaped cover 42 is exactly within the recess at the center of the front end of the pedestal portion 20.

  As described above, the monitor device 1 can be installed and fixed to the seat back 4. The button 27 disposed on the side surface of the pedestal portion 20 is always spring-biased inward of the pedestal portion 20, and the stay 6 of the headrest 5 is inserted into the insertion hole 21 of the pedestal portion 20 by pressing the button 27. It can be inserted. Therefore, as shown in FIG. 2, when the headrest 5 is mounted from above the monitor device 1, the headrest 5 is operated by pressing the button 27 and releasing the button 27 when the headrest 5 is mounted. It can be fixed to the monitor device 1 without coming off. This state is an appropriate use posture of the monitor device 1.

  As described above, the monitor unit 40 is tilted forward (rotated) to the front side of the vehicle so as to be in the retracted position with the hinge shaft 55 inserted through the hinge portions 41e and 22d between the monitor unit 40 and the pedestal unit 20 as a rotation axis. ) Is possible. First, when storing the monitor device 1, the headrest 5 is removed from the monitor device 1 as shown in FIG. 2 while pressing the button 27 of the base 20. At this time, the monitor 11 is mounted on the support column 41 a erected from the rear end of the horizontal plate portion 41 j of the support frame 41 via the bracket 45, so that the monitor 11 stands at the rear end portion of the pedestal portion 20. Has been established. In the use posture, the use posture is stably held by fitting the fitting receiving member 26 of the pedestal unit 20 and the fitting pin 51 of the monitor unit 40 together. On the other hand, since the hinge shaft 55 serving as the rotation axis of the monitor unit 40 is provided at the front end of the pedestal unit 20, the monitor unit 40 moves forward from the use posture to the retracted posture toward the vehicle front side. Sometimes, it can be rotated 90 degrees or more. Thus, when the monitor portion 40 is moved forward to the retracted position by applying a force larger than the fitting force between the fitting receiving member 26 of the pedestal portion 20 and the fitting pin 51 of the monitor portion 40, as shown well in FIG. The monitor unit 40 is rotated approximately 180 degrees and is hung from the hinge shaft 55 at a position in front of the vehicle (a state indicated by an imaginary line in FIG. 3).

  At this time, the front surface of the monitor unit 40 (precisely, the front surfaces of the left and right side walls of the front cover 47) is formed in an inclined shape corresponding to the front shape of the seat back 4. Accordingly, when the monitor unit 40 is moved forward to the retracted posture, the front surface of the monitor unit 40 comes into contact with the front surface of the seat back 4 accurately and at the same time, the display surface 10 of the monitor 11 is substantially vertical. . Thus, when the monitor unit 40 is in the retracted position, there is nothing on the pedestal unit 20, so the upper part of the seat back 4 is clean. Further, the amount of projection of the seat back 4 toward the front side is only the thickness of the monitor unit 40, and no useless gap is generated between the monitor unit 40 and the seat back 4, so that the seat can be stored compactly.

It is a perspective view of a vehicle seat. It is a perspective view which shows the positional relationship of the monitor apparatus and headrest which are in a use attitude | position. It is a sectional side view showing a use posture and a storage posture of a monitor device. It is a disassembled perspective view of a monitor apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Monitor apparatus 2 Vehicle seat 3 Seat cushion 4 Seat back 5 Headrest 6 Stay 10 Display surface 11 Monitor 20 Base part 21 Insertion hole 22 Base frame 23 Upper surface cover 24 Lower surface cover 25 Hinge cover 26 Fitting receiving member 27 Button 40 Monitor part 41 Support frame 42 L-shaped cover 43 Lower surface cover 45 Bracket 47 Front cover 48 Rear cover 49 Lower surface cover 50 Lower surface cover 55 Hinge shaft 60 Internal frame

Claims (3)

A pedestal portion that is installed and fixed on the top of the seat back, and a monitor portion that incorporates a monitor with a display surface for displaying an image exposed on the outer surface;
The monitor unit is pivotally connected to the pedestal part via a hinge, and is tilted forward to the front side of the vehicle with the hinge as a rotation axis and a use posture that stands up from the pedestal part and the display surface faces the vehicle rear side. A retractable structure of a vehicle seat monitoring device that can be rotated in the vehicle longitudinal direction between the retracted posture,
A hinge serving as a rotation shaft of the monitor unit is provided at a front end of the pedestal unit,
The monitor unit can be rotated 90 degrees or more from the use posture,
A tiltable structure of a vehicle seat monitoring device, wherein when the monitor unit is tilted forward to a retracted position, the monitor unit hangs down at a vehicle forward position from the hinge. The front surface of the monitor unit is formed in a shape corresponding to the front shape of the seat back,
2. The retractable structure for a vehicle seat monitoring device according to claim 1, wherein when the monitor unit is tilted forward to a retracted position, the front surface of the monitor unit is in contact with the front surface of the seat back. . The retractable structure of the vehicle seat monitoring device according to claim 1, wherein the display surface is vertical when the monitor unit is tilted forward to a retracted posture.

Images