JP2010058526A - Seat table device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a seat table device capable of storing a table with sufficient appearance while enabling deployment of the table at a high position. <P>SOLUTION: The seat table device is provided with a table body 11 stored along a back surface of a seat back 3b; and a support part for supporting the table body 11 on the seat back 3b. The support part is provided with a first shaft part 12 for pivoting an upper part of the table body 11 making an axis extending in a seat width direction as a center and capable of retaining the deployment state at an approximately horizontal retaining position; and a second shaft part 13 capable of vertically reversing the table body 11 relative to an axis crossing to the back surface of the seat back 3b and capable of retaining it in the respective states. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a seat table device for a rear seat disposed on the back of a seat back of a front seat.

  For example, a foldable seat table device as disclosed in Patent Document 1 below may be provided in front of a seat of a vehicle such as an aircraft or a railway vehicle. In the following Patent Document 1, a plurality of rotating shafts that pivotably support the table are provided, and the table can be switched between the expanded state and the folded state by rotating the table around the rotating shaft. It has become.

  However, when the foldable seat table device as described above is provided, particularly in a vehicle cabin, when the table is folded so that the folded table does not interfere with the occupant seated in the rear seat, It must be devised so that it can be stored along the back of the seat back.

  Patent Document 2 discloses a table in which a table is swingably supported on the back of a seat back of a front seat, and when the table is rotated to the rear seat, it can be brought into an unfolded state. When the table is rotated to the back back side, it can be stored on the back side.

Furthermore, in the following Patent Document 2, the table is set so that the table in the retracted state is supported by the upper portion of the seat back by setting the rotation center of the table above the seat back. As a result, the table can be developed at a position spaced upward from the occupant's feet seated on the seat, and interference between the table and the occupant's feet can be prevented.
Special table 2003-535741 gazette JP 2004-268866 A

  However, as disclosed in Patent Document 2, when the table in the stored state is supported at the upper part, the surface (loading surface) side of the table is inevitably on the vehicle compartment space side in the stored state. There was a problem of facing.

  The surface of the table may be uneven by a cup holder or the like that positions cups or bottles for drinking water at predetermined positions. The surface of the table faces the passenger compartment space when the table is stored. If this happens, the appearance of the sheet will be impaired.

  In addition, if the surface of the table is facing toward the passenger compartment space, the table surface may be soiled due to the passenger's feet being inadvertently hit.

  An object of this invention is to provide the sheet | seat table apparatus which can store this with good appearance, enabling it to expand | deploy a table in a high position.

  The seat table device of the present invention is a seat table device for a rear seat disposed on the back of a seat back of a front seat, the table stored along the back of the seat back, and the table supported by the seat back A first shaft portion that swings the upper portion of the table about an axis extending in the seat width direction and can maintain a developed state at a substantially horizontal holding position; and a back surface of the seat back The table can be turned upside down with respect to the axis intersecting with the second axis portion and can be held in each state before and after inversion.

  According to this configuration, the table can be developed at a high position, and can be stored with good appearance so that the back side faces the passenger compartment space.

  In one embodiment of the present invention, the first shaft portion is provided on the seat back side with respect to the second shaft portion, and has a swing range in which the second shaft portion can swing upward from the horizontal. The second shaft portion is configured such that the table can be rotated while being inclined upward.

  According to this structure, the rotation locus | trajectory of a table can be shifted upwards with respect to the seat surface of the seat cushion of a rear seat, and a wider table can be rotated.

  In one embodiment of the present invention, the front seat and the rear seat are movable seats, and the support portion has a predetermined or higher load applied to the table in the unfolded state in the front-up direction. A connecting portion connected to the seat back frame so as to absorb the load is provided.

  According to this configuration, even when the occupant seated on the rear seat comes into contact with the table at the time of a frontal collision of the vehicle and the like, even if the occupant swings upward or becomes difficult to swing vertically, the connecting member is bent. By absorbing the load by deformation, the impact received by the occupant can be reduced.

  In one embodiment of the present invention, the connecting portion extends downward from a connecting portion with the seat back frame and bends, and thereafter a pad is provided on the upper side.

  According to this configuration, since the connecting portion is bent downward, it is possible to facilitate deformation when a load is applied to the table, and to secure an arrangement space for the pad that plays a role of shock absorption. You can also.

  In one embodiment of the present invention, the second shaft portion has a length for separating the seat back and the developed table, and is set to have a strength to bend and shock-deform against an impact. It is.

  According to this configuration, it is possible to absorb the impact while the table moves toward the seat back when a forward load is applied to the table while allowing the table to rotate smoothly. At this time, the second shaft portion is buffer-deformed, so that the impact can be effectively absorbed.

  In one embodiment of the present invention, the first shaft portion is engagably provided so as to be able to be engaged and disengaged in order to control relative rotation between the seat back side member and the table side member with respect to the rotation center thereof. Means and a swing permission means for allowing the table to swing within a predetermined range when the engagement means is in the engaged state, and the engagement means has a weight of the occupant relative to the table. The first engagement supported by the seat back side member so that the engagement is maintained with a swing direction load that is less than or equal to a predetermined value that can be operated without being applied, and the engagement is released with a swing direction load that exceeds the predetermined value. A member and a second engagement member supported by the table side member, and the swing permission means controls the swing of the table within a range in which the engagement of both the engagement members is not completely released. Allow within a certain range and Those having a restoration mechanism for generating a reaction force to restore direction.

According to this configuration, by allowing the table to swing within a predetermined range, the table can be appropriately swung in the event of a frontal collision of the vehicle, so that the safety of the occupant can be improved. .
In addition, it is not reliable to use the table as a clue when occupants get on and off, and the table can be restored to the expanded position when it is released. ing. Therefore, it is possible to avoid such inconveniences that the table is unexpectedly collapsed and the article placed on the table is dropped or the occupant falls.

  In one embodiment of the present invention, the restoring mechanism is inclined with respect to the rotation direction and predetermined in the rotation direction at at least one of the first engagement member and the second engagement member. It includes an inclined portion extended in an angle and biasing means provided to bias at least one of the engaging portions in a direction approaching in the axial direction.

  According to this configuration, the engaging means and the swing allowing means can be integrated in a compact manner.

  In one embodiment of the present invention, the restoring mechanism causes at least one of the first engaging member and the second engaging member to be applied to a member supporting the first engaging member and the second engaging member by a swinging direction load less than the predetermined value. It includes an elastic holding member that elastically holds so that it can swing.

  According to this configuration, the elastic holding member as the swing allowing means is provided separately from the engaging means, so that the table can be easily and reversibly swung while maintaining the engaged state of the engaging means. Can do.

  According to the present invention, it is possible to store the table with good appearance while enabling the table to be developed at a high position.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a schematic side view of a vehicle on which a seat including a seat table device according to an embodiment of the present invention is disposed. FIG. 2 is a perspective view showing a sheet provided with a sheet table device, and shows a state in which the surface faces upward in the unfolded state of the table. FIG. 3 is a side view of the same. As shown in FIG. 1, the vehicle 1 is provided with a floor panel 2 that constitutes the lower surface (floor surface) of the vehicle body. This floor panel 2 is disclosed in, for example, Japanese Patent Application Laid-Open No. 11-240364. Similarly, the rear position is set to be higher than the front position.

  In addition, a front seat 3 (hereinafter abbreviated as “seat 3”) including a driver seat and a passenger seat is disposed on the floor panel 2 in the passenger compartment of the vehicle 1 shown in FIG. On the rear side, a second-row seat 4 and a third-row seat 5 (hereinafter abbreviated as seats 4 and 5) are arranged in order from the front as rear seats.

  In the present embodiment, as described above, the floor cushion is set so that the rear position is higher than the front position, so that the seat cushion of the rear seat is set to a higher position. Yes. For this reason, the front view of the passenger | crew X (refer FIG. 2, FIG. 3) seated on the seat | sheet located in back is fully ensured, and the feeling of pressure which the passenger | crew X receives by presence of a front side seat is eased.

  The seat 3 and the seat 4 are configured such that seat cushions 3a and 4a that form a seating surface on the floor panel 2 are slidable in the vehicle front-rear direction with respect to the floor panel 2 via the seat slide mechanisms 6 and 7. It is supported so that it can be positioned at the front / rear slide position.

  The seat slide mechanisms 6 and 7 have lower rails 6a and 7a provided on the floor panel 2, and upper rails 6b and 7b that are slidable in the vehicle longitudinal direction with respect to the lower rails 6a and 7a.

  The seats 3 to 5 include seat cushions 3a to 5a and seat backs 3b to 5b that are pivotally supported by rear end portions of the seat cushions 3a to 5a and stand upward. Base frames forming the bases of the third and fourth seat cushions 3a and 4a are fixed to the upper surfaces of the upper rails 6b and 7b.

  Further, the seat slide mechanism 6 for the seat 3 is provided with a known mechanism for moving the seat cushion 3a downward as shown by a two-dot chain line in the figure in conjunction with the backward sliding of the seat 3. Therefore, the front view of the occupant X seated on the seat 4 located at the rear side is further ensured, and the above-described feeling of pressure on the occupant X can be further alleviated.

  In this embodiment, as shown in FIGS. 2 and 3, a recess 31 is formed on the back surface of the seat back 3b of the seat 3, and the lower portion of the recess 31 is made of the same material as the skin 32 of the seat back 3b. A pocket part 34 having an opening 34 a is formed by the concave part 31 and the cover part 33.

  Furthermore, on the back surface of the seat back 3b, together with the table main body 11 constituting the seat table device 10, two shaft portions 12 and 13 constituting the support portion and a connecting member 14 (see FIG. 3) described later are disposed. The table body 11 is supported through the two shaft portions 12 and 13 and the connecting member 14 so as to be swingable with respect to the seat back 3b.

  Here, on one side of the table body 11, a cup holder 11a having a concave shape is formed so that when a cup, bottles, or the like is placed, the cup holder 11a is formed. ) Is set. The table main body 11 can be put into a predetermined use state by being developed substantially horizontally with the surface facing upward. Since the structure for supporting the sheet table device 10 is substantially the same for both the sheets 3 and 4, the sheet 3 will be described as an example in the following description.

  4 is a cross-sectional view taken along line AA in FIG. 3, and FIG. 5 is an exploded perspective view of the sheet table device 10. Of the two shaft portions 12 and 13, the first shaft portion 12 provided closer to the seat back 3b than the second shaft portion 13 includes a shaft main body 12a disposed mainly in the center portion in the seat width direction, It has the bearing cylinder part 12b arrange | positioned at both ends, and these have the structure covered and connected with the cover 12c.

  Here, the shaft main body 12a is disposed such that its axis extends in the sheet width direction, and a cylindrical bearing portion 12d extending toward the table main body 11 is provided at the center.

  The frame 36 covered with the pad 35 (see FIGS. 3 and 4) in the seat back 3b is connected to two connecting members 14 and 14, and the shaft body 12a is inserted into the insertion hole 14a at the tip thereof. Both ends are inserted so as to be rotatably supported. Thereby, the 1st axial part 12a is supported so that rotation with respect to the seat back 3b is possible.

  In the seat back 3b, a cross member 37 is attached so as to extend in the seat width direction and bridge the left and right of the frame 36. The cross member 37 is substantially U-shaped via a hat-shaped bracket 38. The lock bar 15 is attached. Both end portions of the lock bar 15 are inserted into the bearing tube portion 12b of the first shaft portion 12, and both are engaged as will be described later.

  Further, in the seat back 3b, as shown in FIG. 5, a wire 39 is stretched over the left and right sides of the frame 36, and the lower end of the lock bar 15 is elastically held by the wire 39 by a fixing band 40 at the center thereof. is doing.

  FIG. 6 is an exploded perspective view showing an engaging portion between the lock bar and the first shaft portion 12, and as shown in FIG. 6, the end surface of the lock bar 15 is inclined with respect to the circumferential direction, and A plurality (three in this case) of ridges 15a extending at a predetermined angle in the circumferential direction are formed, while the case 12b1 of the bearing tube portion 12b of the first shaft portion 12 corresponds to the shape of the ridges 15a. A circular locking plate 12e formed with a plurality of slits 12e1 is attached.

  The locking plate 12e has a rib 12e2 on the surface opposite to the slit 12e1, and this is fitted into the slit 12f1 of a rubber elastic body 12f fixed to the bearing tube portion 12b. As a result, the locking plate 12e and the lock bar 15 can be engaged with each other, and the locking plate 12e is urged in the axial direction toward the other lock bar 15 by the elasticity of the elastic body 12f. Has been.

  When the locking plate 12e and the lock bar 15 are engaged, the relative rotation between the cross member 37 and the first shaft portion 12 with respect to the bearing tube portion 12b can be controlled, and when a load exceeding a predetermined value is applied, The engagement between the two is released, and the first shaft portion 12 can be rotated with respect to the seat back 3b.

  Incidentally, as shown in FIGS. 4 and 5, the bearing portion 12d of the first shaft portion 12 is formed with a groove 12d1 along the circumferential direction, and the second shaft portion 13 is inserted into the hole portion. ing. Further, the second shaft portion 13 is formed with a groove 13a in the circumferential direction like the bearing portion 12d, the grooves 12d1 and 13a are overlapped in the axial direction, and the E-ring 16 is as shown in FIG. The second shaft portion 13 is rotatably connected to the bearing portion 12d by being fitted in both the grooves 12d1 and 13a.

  The E-ring 16 is fixed at a predetermined position by fitting the convex portion 16a into the hole 12d2 (see FIG. 7) of the bearing portion 12d, and the convex portion 16a prevents the second shaft portion 13 from coming off. Has been. FIG. 7 is a cross-sectional view showing the vicinity of a portion where the E-ring is fitted.

  One end side of the second shaft portion 13 is formed in a semicircular cross section, and is fitted into a semicircular hole 11 b formed in the table body 11. Thus, the cover body 11 is supported so as to be rotatable about the second shaft portion 13 and can be turned upside down with respect to the axis intersecting the seat back 3b. Further, the table main body 11 can swing integrally with the second shaft portion 13 about the shaft center extending in the sheet width direction by the first shaft portion 12.

  Further, a slide stopper portion 17 as shown in FIGS. 8 and 9 is attached to the side of the table body 11. The slide stopper portion 17 includes a wedge-shaped fitting portion 17a extending toward the first shaft portion 12, an operation portion 17b, and a spring 17c that biases the fitting portion 17a toward the first shaft portion 12. Yes.

  On the other hand, the first shaft portion 12 is formed with receiving holes 12c1 corresponding to the fitting portions 17a at both ends of the cover 12c, and the fitting portions 17a are fitted into any of the receiving holes 12c1. By stopping, as long as a load exceeding a predetermined value is not applied, the locked state is maintained by the elastic force of the spring 17c. For this reason, the rotation of the table main body 11 around the second shaft portion 13 is restricted, and the respective states in which the front or back surface of the table main body 11 faces upward, that is, the respective states before and after inversion are maintained.

  On the other hand, when the operation portion 17b is slid against the elastic force of the spring 17c, or when a load of about 20 kg is applied to the table body 11, the fitting portion 17a can be disengaged. The locking state can be released. 8 is an exploded perspective view showing the table main body and the first shaft portion, and FIG. 9 is a cross-sectional view showing a locking state of the slide stopper portion. Further, a portion 12c2 of the cover 12c shown in FIG. 8 is an insertion hole for inserting the distal end of the connecting member 14. Moreover, the site | part shown with the code | symbol 18 in FIG. 9 is the skin of the table main body 11 comprised with the same raw material as the skin 32 of the seat back 3b, and all are made from cloth here.

  In the present embodiment, in the unfolded state of the table body 11 shown in FIG. 2 and the like, the table body 11 is swung around the second shaft portion 13 after the holding of the table body 11 is released by the operation of the slide stopper portion 17. Then, as shown by the solid line in FIG. 10, the back surface can be directed upward, and from there, the engagement between the lock bar 15 and the locking plate 12e is released with a predetermined pressing force, and the table body 11 Is pivoted downward about the first shaft portion 12 as shown by a two-dot chain line in FIG. 10, with the back surface facing the passenger compartment space, that is, with the front surface facing the recess 31 side. The main body 11 can be stored along the back surface of the seat back 3b.

  Thus, the table body 11 is pivoted about the axis extending in the seat width direction and held at a substantially horizontal holding position, and the table with respect to the axis intersecting the back surface of the seat back 3b. The main body 12 can be turned upside down and provided with the second shaft portion 13 that can be held in each state, so that the table main body 11 can be unfolded at a high position and stored with good appearance so that the back side faces the passenger compartment space. can do.

  In particular, the table body 11 can be deployed at a high position even when the seat 3 is configured to move downward in conjunction with the rearward sliding of the seat cushion 3a, as in the seat 3 of the present embodiment. By doing so, the contact between the foot of the occupant X and the table body 11 can be avoided more reliably.

  When the table main body 11 is in the retracted state, if the free end of the table main body 11 is swung around the first shaft portion 12 and expanded to the seat 4 side, the lock bar 15 is moved to the locking plate 12e. So that the table body 11 can be positioned at a predetermined angular position, and when the table body 11 is rotated around the second shaft portion 13 so that the surface faces upward, The table body 11 can be returned to the use state again.

  As shown in FIGS. 2 and 3, the first shaft portion 12 has a swing range in which the second shaft portion 13 can swing upward from the horizontal, and the second shaft portion 13 is inclined upward. The table main body 11 can be rotated in the state where it is in contact.

  Thereby, the rotation locus | trajectory of the table main body 11 can be shifted upwards with respect to the seat surface of the seat cushion 4a of the seat 4 of the rear side, and the wider table main body 11 can be rotated. Here, if the side edge of the table main body 11 is trapezoidally inclined by the upward inclination of the second shaft portion 13, the table main body 11 can be further widened without bringing the rotation locus of the table main body 11 close to the seating surface.

  By the way, in this embodiment, the connection member 14 that connects the frame 36 of the seat back 3b and the first shaft portion 12 has a substantially letter shape in side view as shown in FIGS. When a predetermined load or more is applied to the table main body 11 in the state in the front upper direction, the connecting member 14 is bent and deformed to absorb the load as shown by a two-dot chain line in FIG. .

  With such a configuration, for example, at the time of a frontal collision of the vehicle 1, the occupant X seated on the rear seat 4 comes into contact with the table main body 11 and swings upward or is difficult to swing vertically. Even if it becomes, it can reduce the impact which the said passenger | crew X receives by absorbing a load by the bending deformation of the connection member 14. FIG.

  Further, as shown in FIG. 3 and the like, the connecting member 14 is formed so as to bend and bend downward from the connecting portion with the frame 36, and in the upper space after the bent shape is formed. A pad 35 of the seat back 3b is disposed. As described above, since the connecting member 14 is bent downward, it is possible to facilitate deformation when a load is applied to the table body 11 and to provide a space for disposing the pad 35 that plays a role of shock absorption. It can also be secured.

  Further, as shown in FIG. 4, the second shaft portion 13 has a length for separating the seat back 3 b and the table main body 11 by a predetermined distance δ, and a forward load is applied to the table main body 11. In some cases, the strength is set so that it can be buffered and deformed as indicated by a two-dot chain line in the figure before shearing.

  As described above, when the table body 11 is installed away from the seat back 3b, the table body 11 can be smoothly rotated while a forward load is applied to the table body 11. An impact can be absorbed while the table body 11 moves toward the seat back 3b. At this time, the shock can be effectively absorbed by the second shaft portion 13 being buffer-deformed.

  By the way, in this embodiment, in a state where the bearing tube portion 12b (locking plate 12e) supported by the first shaft portion 12 shown in FIG. When a load in the direction indicated by the arrow acts on the table body 11, as shown in FIG. 12 (a), the ridge 15a relatively moves in the slit 12e1, and the elastic body 12f (see FIG. 6) is further moved during the relative movement. The table body 11 is allowed to swing by elastically deforming. In the present embodiment, the table body 11 is allowed to swing within a predetermined range (angle θ = about 5 to 10 °) as shown in FIG.

  Further, when the load in the swing direction is equal to or less than a predetermined value (about 5 to 10 kg weight) that the occupant X can operate without applying weight to the table body 11, the engagement state is maintained, and the swing exceeds the predetermined value. When the directional load is applied to the table body 11, as shown in FIG. 12B, the engagement is released when the protrusion 15a is completely separated from the slit 12e1 of the locking plate 12e. .

  Then, as shown in FIG. 12A, the engagement state between the locking plate 12e and the lock bar 15 is not completely released, that is, the engagement between the slit 12e1 of the locking plate 12e and the protrusion 15a. In the range where the alignment is not completely removed, the table body 11 is allowed to swing within the predetermined range, and the elastic force of the elastic body 12f generates a reaction force in the restoring direction with respect to the table body 11, thereby The top is returned to the bottom of the slit 12e1.

  In this way, by allowing the table body 11 to swing within a predetermined range, the table body 11 can be appropriately swung in the event of a frontal collision of the vehicle 1, so that the safety of the occupant X is improved. Can be made.

  In addition, the table body 11 can be used as a clue when the passenger X gets on and off, and the table body 11 can be restored to the developed position when the hand is released. It's hard to hang and hard to fall down. Accordingly, it is possible to avoid inconveniences such as the table body 11 unexpectedly falling and the article placed thereon dropping or the occupant X falling down.

  The elastic body 12f also has a vibration damping function that absorbs vibrations of the vehicle 1 so as not to be transmitted to the table body 11 side.

  In addition, the first shaft portion 12 and the lock bar 15 include slits 12e1 and ridges 15a having inclined surfaces, and an elastic body 12f that urges at least one of the two in the axial direction is provided in the first shaft portion 12. Therefore, the means for controlling the relative rotation between the cross member 37 and the first shaft portion and the means for allowing the swing within the predetermined range can be integrated in a compact manner.

  Moreover, in this embodiment, the lock bar 15 provided with the protrusion 15a is elastically held by the wire 39 (refer FIG. 5, FIG. 11). When a swinging direction load less than the predetermined value acts on the table body 11, the wire 39 is bent to bring the table body 11 to the frame 36 while the lock bar 15 is engaged with the locking plate 12e. It is configured to be able to swing in the vertical direction. At this time, only the vertical movement of the lock bar 15 is allowed by the bracket 39, and the forward / backward movement is restricted.

  In this case, the wire 39 as a means for allowing the table body 11 to swing is provided separately from the locking plate 12e and the lock bar 15, so that the engagement state between the locking plate 12e and the lock bar 15 is maintained. Meanwhile, the table body 11 can be swung easily and reversibly.

  It should be noted that the slit 12e1 and the protrusion 15a of the locking plate 12e described above are set at appropriate angular positions so that they can be held in a state of facing rearward and downward as in the table body 11 'shown in FIG. Good. In this case, by providing the stopper 11c at the lower end, for example, the book Bo can be leaned against the table body 11, and the table body 11 can be used as a book stand.

In correspondence between the configuration of the present invention and the above-described embodiment,
The support portion of the present invention corresponds to the first shaft portion 12, the second shaft portion 13, and the connecting member 14,
Similarly,
The seat back side member corresponds to the frame 36 and the cross member 37,
The table side member corresponds to the first shaft portion 12,
The engaging means corresponds to the locking plate 12e and the lock bar 15,
The swing permission means corresponds to the locking plate 12e, the elastic body 12f, and the lock bar 15,
The first engagement member corresponds to the lock bar 15,
The second engagement member corresponds to the locking plate 12e,
The restoration mechanism corresponds to the slit 12e1, the elastic body 12f, the protrusion 15a, and the wire 39,
The inclined portion corresponds to the slit 12e1 and the ridge 15a,
The biasing means corresponds to the elastic body 12f,
The elastic holding member corresponds to the wire 39,
The present invention is not limited only to the configuration of the above-described embodiment, and many embodiments can be obtained.

The schematic side view of the vehicle by which the sheet | seat provided with the seat table apparatus which concerns on embodiment of this invention was arrange | positioned. It is a perspective view which shows the sheet | seat provided with the sheet | seat table apparatus, Comprising: The figure which shows the state which the surface turned upwards in the expansion | deployment state of the table. The side view which shows the sheet | seat provided with the sheet table apparatus. FIG. 4 is a cross-sectional view taken along line AA in FIG. 3. The disassembled perspective view of a sheet table apparatus. The disassembled perspective view which shows the engaging part of a lock bar and a 1st axial part. Sectional drawing which shows the site | part periphery in which the E ring was inserted. The disassembled perspective view which shows a table main body and a 1st axial part. Sectional drawing which shows the latching state of a slide stopper part. It is a perspective view which shows the sheet | seat provided with the sheet | seat table apparatus, Comprising: The figure which shows the state which the back surface faced upwards in the expansion | deployment state of the table. The side view which shows the relationship between a lock bar and a table main body. (A) A cross-sectional view showing the relationship between the slit and the protrusion when the table body is swung within a predetermined range, (b) the slit and the protrusion when the engagement between the locking plate and the lock bar is released. Sectional drawing which shows the relationship with a strip. The schematic side view which shows a sheet | seat provided with the sheet table apparatus which concerns on other embodiment of this invention.

Explanation of symbols

3b to 5b ... Seat back 10 ... Sheet table device 11 ... Table body 12 ... First shaft portion 12e ... Locking plate 12e1 ... Slit 12f ... Elastic body 13 ... Second shaft portion 14 ... Connecting member 15 ... Lock bar 15a ... Projection Article 35 ... Pad 36 ... Frame 37 ... Cross member 39 ... Wire

Claims (8)

A seat table device for a rear seat disposed on the back of the seat back of the front seat,
A table stored along the back of the seat back;
A support portion for supporting the table on the seat back,
The support portion swings the upper part of the table about an axis extending in the sheet width direction, and a first shaft portion capable of holding the unfolded state at a substantially horizontal holding position;
A seat table device comprising: a second shaft portion that can vertically flip the table with respect to an axis that intersects the back surface of the seat back and that can be held in each state before and after inversion. The first shaft portion is provided closer to the seat back than the second shaft portion, and has a swing range in which the second shaft portion can swing upward from the horizontal.
The sheet table device according to claim 1, wherein the second shaft portion is configured to be able to rotate the table while being inclined upward. The front seat and the rear seat are moving body seats,
The said support part is provided with the connection part connected with respect to a seat back frame so that it may absorb this load when a predetermined load or more is added to the table in the expansion | deployment state to the front upper direction. Sheet table device. 4. The seat table device according to claim 3, wherein the connecting portion extends downward from a connecting portion with the seat back frame and bends, and thereafter a pad is provided on the upper portion. The said 2nd axial part is set to the intensity | strength which bends and shock-deforms with respect to an impact while it has the length which spaces apart the said seat back and the said table | surface unfolded. A sheet table device according to claim 1. The first shaft portion includes an engaging means that is detachably provided to control relative rotation between the seat back side member and the table side member with respect to a rotation center thereof.
Rocking permission means for allowing rocking of the table within a predetermined range when the engagement means is in the engaged state;
The engaging means holds the table with a load in a swinging direction that is equal to or less than a predetermined value that can be operated by an occupant without applying weight, and releases the engagement with a load in the swinging direction that exceeds the predetermined value. The first engagement member supported by the seat back side member, and the second engagement member supported by the table side member,
The swing allowing means allows the table to swing within the predetermined range within a range where the engagement of the both engaging members is not completely released, and generates a reaction force in the restoring direction with respect to the table. The sheet table device according to any one of claims 1 to 4, further comprising a restoring mechanism to be operated. The restoring mechanism includes an inclined portion that is inclined with respect to the rotation direction and extends at a predetermined angle in the rotation direction in at least one of the engagement portions of the first engagement member and the second engagement member;
The sheet table apparatus according to claim 6, further comprising: an urging unit provided to urge at least one of the engaging portions in a direction approaching in the axial direction. The restoring mechanism elastically holds at least one of the first engaging member and the second engaging member so as to be swingable with respect to a member supporting the first engaging member and a swinging direction load less than the predetermined value. The sheet table device according to claim 5 or 6, comprising a member.

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