JPH05345540A - Seat back table - Google Patents

Abstract

PURPOSE:To facilitate setting of level on the upper surface of a table panel relative to an inclination of a seat back to maintain a stable condition against external force applied to the table panel. CONSTITUTION:A seat back table is provided with a lock member which comprises a lock bar 23 provided at the end of a table panel 20 rotatable about a pivot shaft and an elastic connecting part 51 which is made in elastic contact with and holds the lock member comprising the lock bar 23. Because the elastic connecting part 51 holes elastically the lock member comprising the lock bar 23 when they are in locked condition, the locked condition is not unlocked unless an external force beyond the elastic force at which the lock member is held elastically is exerted. Also the elastic connection part 51 which holds elastically the lock member comprising the lock bar 23 is screwed into a screw section 55 of an adjusting rod 53, and the adjusting rod 53 is rotated by an external force to displace the locking position between the lock member and the elastic connection part 51 elastically holding the lock member.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seat back table which is mounted on a seat back in advance and is used for eating and drinking or doing office work in a vehicle such as an automobile. The present invention relates to a seat back table having a changing table panel.

[0002]

2. Description of the Related Art As a conventional seat back table of this type, a technique shown in FIG. 11 is known.

FIG. 11 is a perspective view showing a conventional seat back table in use.

In the figure, a vehicle seat 100 is composed of a seat cushion 101, a seat back 102, and a headrest 103. A conventional seat back table 110 is a seat back 102, and a pair of arms 111 attached to a headrest bar 104 of a headrest 103, a table panel 112 rotatably supported on the lower part of each arm 111, and the table panel. And a chain 113 for holding 112 in a substantially horizontal use position.

When not in use, the table panel 1
12 is rotated upward and is held by a holding member (not shown) at the storage position. In use, the table panel 112 is placed at the use position and food and drink are placed on it. Therefore, in this state, the seat 10
An occupant sitting behind 0 can eat, drink or work in the passenger compartment.

[0006]

However, in the above-described conventional seat back table 110, since the table panel 112 at the storage position projects from the back surface of the seat back 102, not only the appearance when not in use is deteriorated. ,
An occupant is likely to come into contact with the table panel 112 when getting on or off, and at this time, the holding member comes off and the table panel 112 is removed.
Sometimes rotated to the use position. Further, since the table panel 112 is held in the use position by the chain 113, the chain 113 becomes an obstacle and the table panel 1
12 was inconvenient. Since the table panel 112 in the use position can be freely rotated upward, when a person goes in and out of the vehicle, the table panel 112 sways up and down due to vibration, and the drink may spill. When the inclination angle of the seat back 102 is changed, the table panel 112 cannot be held horizontally, and there is a risk that food and drink or office supplies may slip off.

Therefore, the present invention provides a seat back table which facilitates horizontal setting of the upper surface of the table panel with respect to the inclination of the seat back and can maintain a stable state against external force applied to the table panel. This is an issue.

[0008]

In order to solve the above-mentioned problems, a seat back table according to the present invention comprises a locking member arranged at an end of a table panel rotatable about a support shaft, An elastic coupling portion that elastically holds the locking member, and a moving member that allows the elastic coupling portion to move in the rotation direction of the table panel are adjusted by an external force screwed with the moving member. The threaded portion of the lot moves up and down the moving member that displaces the elastic coupling portion that elastically holds the locking member.

[0009]

In the seat back table of the present invention, the seat back table has the locking member arranged at the end of the table panel rotatable about the support shaft, and the elastic coupling portion for elastically holding the locking member. However, when both are in the locked state, the elastic coupling portion elastically holds the locking member, so the locked state of both is released unless an external force greater than the elastic force of the elastic contact is applied. Absent. Further, the elastic coupling portion that elastically holds the locking member is screwed with the threaded portion of the adjustment lot, and by rotating the adjustment lot by an external force, the elastic coupling portion that elastically holds the locking member and the locking lot. The locking position of can be displaced.

[0010]

EXAMPLE A seat back table according to an example of the present invention will be described below.

FIG. 1 is a front view showing the left half of the appearance of the seat back table of the embodiment of the present invention in a stored state.
1 is a configuration diagram of a frame member, a guide member, and a table panel at a position corresponding to a cutting line BB showing the stored state of the seat back table in FIG. 1, and FIG. 3 is a cutting line showing the stored state of the seat back table in FIG. It is sectional drawing by AA. Further, FIG. 4 is a configuration diagram in which the guide member (table panel) in FIG. 2 is tilted and the table panel is pulled out, and FIG. 5 is a configuration diagram in which the guide member in FIG. 2 is tilted and the table panel is rotated. Is. 6 is an enlarged explanatory view of a main part of the restricting means in a sectional view taken along the section line AA showing the stored state of the seat back table in FIG.
6 is a cross-sectional view of a main part showing a knob for changing the restriction position by the restriction means of FIG. 6, and FIG. 8 is a cross-sectional view of the main part of a support shaft portion of a seat back table according to an embodiment of the present invention. Furthermore, FIG.
Is a sectional view taken along the section line C-C showing the stored state of the seatback table of FIG. 3, and FIG. 10 is a sectional view of the main part of the locking means portion of the seatback table of one embodiment of the present invention.

In the figure, the base panel 10 is entirely made of synthetic resin, and a concave portion 11 (see FIG. 3) into / from which the table panel 20 can be inserted / removed is opened at the center thereof in the upper direction. Side walls 12 are provided on the left and right sides of the front surface of the base panel 10, and a frame member 30 integrally attached to the base panel 10 is mounted inside each of the side walls 12. A guide member 40 is pivotally supported by a bolt 31 on the lower end of the frame member 30,
A front member 14 is integrally attached to the guide member 40 so as to cover the recess 11 into which the table panel 20 at the center of the base panel 10 can be inserted and removed. The recess 11 at the center of the base panel 10 and the front member 14 form a space into which the table panel 20 can be inserted and removed. Front member 1 located in recess 11 of base panel 10
A pocket panel 13 made of an elastic body is attached to the front surface of the No. 4 so as to form a bag body for accommodating small articles such as magazines together with the front member 14. In addition, the base panel 10
A knob 15 is disposed on the upper left portion of the front surface of the. The knob 15 is for adjusting the angle of the use position of the table panel 20 described later. Also, the table panel 2
The handle 24 is formed by a recess so that the handle 0 can be easily taken in and out.

The base panel mounting hole 16 is mounted on a seat back, a headrest or the like by a mounting tool (not shown).

In FIG. 2, the frame member 30 disposed inside each side wall portion 12 of the base panel 10 is firmly fixed to the base panel 10 with bolts, screws or the like. This frame member 30 together with the base panel 10
The installation angle of the seat back line SL is determined. A guide member 40 is axially supported by a bolt 31 at the lower end of the frame member 30, a guide groove 41 is provided in the length direction of the guide member 40, and a support shaft 45 is provided upright at the upper end portion in the length direction. ing. The guide groove 41 includes a straight groove portion 43 and a peripheral groove portion 44. In addition, the straight groove portion 4
3 is a distance slightly shorter than that of the table panel 20, and the circumferential groove portion 44 rotates on the circumference around a support shaft 45 fixed to the guide member 40.

The generally V-shaped first arm 32 is rotatably supported by the first arm fulcrum 39 of the guide member 40. A long hole 33 formed in one end of the first arm 32
Restricts the movement of the guide member pin 46 erected on the guide member 40. Further, the small hole 34 formed at the other end of the first arm 32 is provided at one end of the second arm 36 pivotally supported at the second arm fulcrum 35 of the guide member 40. It is fitted with the second arm fixing pin 37 provided upright. A spring 38 is provided at the other end of the second arm 36.
Thus, a tensile force is applied between the first arm 32 and the side of the elongated hole 33 from the first arm fulcrum 39.

That is, the substantially V-shaped first arm 32 is shown in FIG.
The position of the second arm 36 (corresponding to the stored state of the table panel 20 and the guide member 40) shown in FIG.
An elastic force is applied by the spring 38 so that the arm 32 rotates counterclockwise on the guide member pin 46 side. In this state, the elastic force is applied by the spring 38 so as to draw the guide member 40 toward the frame member 30,
An elastic force is applied to rotate the first arm 32 counterclockwise so that the first arm 32 is easily rotated counterclockwise to be tilted by a slight external force. Therefore, the table panel 20 and the guide member 40 do not move from the stored state due to vehicle vibration or the like.

Here, the guide member 40 is connected to the frame member 3
When the first arm 32 is rotated so as to be separated from 0 and tilted at a predetermined angle, the guide member pin 46 standing on the guide member 40 moves in the elongated hole 33 while the guide member pin 46 standing on the guide member 40 moves. When the guide pin 40 abuts on the uppermost part of the elongated hole 33 while pushing down the elongated pin 33 side of the member pin 46, the guide member 40 is prevented from rotating with the first arm fulcrum 39. At this time, before the spring 38 passes through the linear position of the first arm fulcrum 39 and the second arm fulcrum 35, the elastic force is applied so that the first arm 32 rotates the guide member pin 46 side to the left. .. But spring 3
When 8 passes the linear position of the first arm fulcrum 39 and the second arm fulcrum 35, the spring 38 gives an elastic force to rotate the first arm 32 to the right (rotate downward), and a slight external force causes the spring 38 to rotate. The first arm 32 is prevented from easily rotating upward. In other words, there is a snap mechanism including the first arm 32, the second arm 36, and the spring 38, which constitute the biasing force applying means 60 of this embodiment,
When the spring 38 is located to the left of the linear position of the first arm fulcrum 39 and the second arm fulcrum 35 as shown in FIG. 2, the guide member 40 is drawn toward the frame member 30 side,
Further, when positioned to the right, the guide member 40 acts in the direction of separating from the frame member 30 side.

Guide pins 21 are provided upright on both sides of the lower portion of the table panel 20, and the guide pins 21 move in the guide grooves 41 of the guide member 40. The support shaft 45 fixed to the guide member 40 moves in the table guide grooves 22 (see FIGS. 4 and 8) provided on both sides of the table panel 20.

Further, as shown in FIG. 3, a locking rod 23 made of a rod is arranged at the center of the lower portion of the table panel 20. When the guide member 40 is on the frame member 30 side and the table panel 20 is in the retracted state, the locking rod 23 is
An upward movement is restrained by a locking member 17 made of an elastic body disposed below the recess 11 of the base panel 10. The restraint by the locking member 17 is performed when the guide member 40 is tilted from the frame member 30 by the maximum movement distance,
The engaged state is released.

The relationship between the locking rod 23 and the locking member 17 will be described in detail with reference to FIG.

The locking bar 23 arranged at the lower part of the table panel 20 is made of a material or a structure that is less elastically changed,
The locking member 17 has a ridge at its upper end, and when the locking rod 23 descends from above, the elasticity allows the locking rod 23 to descend, and the locking rod 23 is positioned below the ridge of the locking member 17. At this time, the locking member 17 engages beyond the center of the locking rod 23 to restrain its vertical rise. In the table panel 20, the support shaft 45 of the guide member 40 and the table guide groove 22 are coupled, and the guide member 4
Since the 0 guide groove 41 and the guide pin 21 are in a coupled relationship, when the guide member 40 tilts around the bolt 31, the table panel 20 also tilts. At this time, the locking rod 23 and the locking member 17 are placed at a position lower than the position of the bolt 31.
Has a connection with. Further, when the guide member 40 is rotated from the frame member 30 by the maximum movement distance, that is, the tilt angle θ, the position of the locking rod 23 also changes and moves leftward from the position L of the vertical central axis thereof. At this time, the locking member 17 contacts a part of the side portion of the locking rod 23, and when the table panel 20 is pulled in the tilt angle θ direction by an external force, the elasticity of the locking member 17 causes the locking member 17 to lock. The engagement relationship with the rod 23 is released.

Therefore, the table panel 20 can be easily pulled out by tilting it by the tilt angle θ and then pulling it upward, but it is difficult to pull it out even if it is directly pulled in the vertical direction.

The table panel 20 has a tilting angle θ.
Is set at a position that is sufficiently separated from the upper portion of the headrest or seatback, the hand is not caught in the upper portion of the headrest or seatback when pulling out the table panel 20, and the table panel 20 Since the contact with the upper surface is also eliminated, dirt on the upper surface of the table panel 20 is not attached to the headrest or the seat back.

Next, a structure for moving the table panel 20 to the storage position and the use position will be described.

As described above, by pulling the table panel 20, the frame member 3 together with the guide member 40 is pulled.
0 is tilted by a tilt angle θ determined by the first arm 32. When the guide member 40 is tilted by the tilting angle θ from the frame member 30 by the pulling force applied to the table panel 20, the engagement relationship between the locking member 17 and the locking rod 23 is released, and it can be easily pulled out. Table panel 20
As shown in FIGS. 8 and 9, the movement of the guide member 40
Since the support shaft 45 and the table guide groove 22 of the guide member 40 and the guide groove 41 of the guide member 40 and the guide pin 21 of the guide member 40 are connected to each other, the guide groove 41 of the guide member 40 extends along the straight groove portion 43. When the table panel 20 is further raised, the table panel 20 is rotated about the support shaft 45 along the circumferential groove portion 44 of the guide groove 41 of the guide member 40 by the table tilt angle α. This table tilt angle α
3 is determined by the restricting means 50 for restricting the rotation of the table panel 20 which rotates about the support shaft 45 of the guide member 40, as shown in FIG.

The regulation means 50 of this embodiment restrains the upward movement of the locking rod 23 arranged at the lower portion of the table panel 20 and elastically joins them by a substantially Y-shaped elastic coupling portion 51 and the elastic coupling portion 51. A movable member 52 which is integrally formed with the movable member 52 and is movable in the slit 17 which allows only vertical movement.
An adjusting rod 53 having a screw portion 55 that is screwed with a bevel gear 54, a moving member spring 56 that prevents rattling of the moving member 52, and a bevel gear 57 that meshes with the bevel gear 54 shown in FIG. 7. And the bevel gear 5
The connecting rod 58 connects between 7 and the knob 15. The connecting rod 58 is provided with a plurality of bearings so as to prevent the connecting rod 58 from moving in the axial direction by well-known means and to obtain smooth rotation.

Therefore, when the knob 15 is rotated, the bevel gear 57 is rotated via the connecting rod 58. As shown in FIG. 6, the bevel gear 57 transmits its rotation to the meshed bevel gear 54. Bevel gear 5
The rotation of 4 becomes the rotation of the adjusting rod 53, and the screw portion 55 moves the moving member 52 to be screwed up and down along the slit 17. At this time, the integrally formed substantially Y-shaped elastic coupling portion 51 is vertically displaced along the slit 17, and the movement restraining position of the locking rod 23 disposed below the table panel 20 is changed. Therefore, the displacement of the position of the elastic coupling portion 51 elastically coupled to the locking rod 23 arranged at the lower portion of the table panel 20 makes it possible to obtain a change of a predetermined angle + δ1 to −δ2 from the standard position of the table panel 20. ..

Therefore, it is possible to obtain a change of a predetermined angle + δ1 to −δ2 from the standard position of the table panel 20, so that even if the occupant changes the angle of the seat back according to his / her preference, the upper surface of the table panel 20 can be changed. Can always be horizontal.

The seat back table of this embodiment described above can be used as follows.

First, it is assumed that the base panel 10 is attached to the seat back, and the table panel 20 is in the storage position.

Grasping the vicinity of the handle 24 shown in FIGS. 1 and 3,
Pull the table panel 20 toward you. As a result, the guide member 40 is rotated so as to be separated from the frame member 30, and the substantially U-shaped first arm 32 is moved to the guide member pin 46.
The first arm fulcrum 3
9 prevents the guide member 40 from tilting. During this time, the spring 38 passes the linear position of the first arm fulcrum 39 and the second arm fulcrum 35, and the first arm 32 imparts an elastic force to rotate the guide member pin 46 side to the left, and the table panel 20. Even if a slight external force is applied to push back, it will not return easily. At this time,
The guide member 40 is in the position shown in FIG.

By pulling the table panel 20 toward you, the locking rods 23 arranged at the lower part of the table panel 20 are unconstrained by the locking members 17, and the table panel 20 is moved as shown in FIG. Further, the support shaft 45 fixed to the guide member 40 can move in the table guide grooves 22 provided on both sides of the table panel 20 and can be raised along the linear groove portion 43 of the guide groove 41 of the guide member 40. Then, the guide pin 21 makes the circumferential groove portion 4 of the guide groove 41.
4, the table panel 20 comes to the position shown in FIG. Then, in the table panel 20, the locking rod 23 constituting the restricting means 50 of the present embodiment is elastically coupled to the substantially Y-shaped elastic coupling portion 51, and its upward movement is restrained, and the table panel 20 is elastically coupled. The downward movement is also impossible with a slight external force. Further, the table panel 20 is in a use state in which the table panel 20 projects horizontally with respect to the base panel 10 attached to the seat back.

At this time, when the table panel 20 is not projected horizontally, when the knob 15 is rotated, the bevel gear 57 is rotated through the connecting rod 58, and the rotation is transmitted to the bevel gear 54 from there, and the moving member 52 is moved. By moving it up and down along the slit 17, the substantially Y-shaped elastic coupling portion 51 integrally formed is vertically displaced along the slit 17. Therefore, the movement restraining position of the locking rod 23 arranged at the lower part of the table panel 20 is changed, and the position of the elastic coupling portion 51 elastically coupled to the locking rod 23 arranged at the lower part of the table panel 20 is displaced. A predetermined angle + δ1 to −δ2 can be obtained from the standard position of the table panel 20, and even if the angle of the seat back is changed, the upper surface of the table panel 20 can be kept in the horizontal horizontal use position. .. Alternatively, a predetermined angle + δ1 to −δ2 can be changed from the standard position of the table panel 20 according to the application. In particular, in this embodiment, the moving member spring 56 for preventing the rattling of the moving member 52.
Since it is provided, it can be adjusted accurately.

To return the table panel 20 from the use position to the storage position, it is used as follows.

By gripping the vicinity of the handle 24 of the table panel 20 and turning by the turning angle α by a force larger than the elastic coupling force between the locking rod 23 and the substantially Y-shaped elastic coupling portion 51 constituting the regulating means 50. As shown in FIG. 4, the table panel 20 is linearly moved with respect to the guide member 40, and the support shaft 45 fixed to the guide member 40 and the table panel 20 are moved.
The table panel 20 is moved by the table guide grooves 22 provided on both sides of the table, and at the same time, the guide pin 21 of the table panel 20 is lowered along the straight groove portion 43 of the guide groove 41 of the guide member 40. When the guide pin 21 of the table panel 20 is located at the bottom of the linear groove portion 43 of the guide groove 41 of the guide member 40 and its movement is stopped,
Locking bar 23 disposed under the table panel 20
Comes into elastic contact with the locking member 17 and is in the unlocking position between the locking rod 23 and the locking member 17.

Here, when the vicinity of the handle 24 of the table panel 20 is pressed toward the frame member 30 with a force larger than the elastic force of the spring 38 and rotated by the tilt angle θ, the guide member 40 moves toward the frame member 30 side. Is rotated to
The guide member pin 46 of the substantially U-shaped first arm 32 abuts and moves toward the lower portion of the elongated hole 33, and rotates leftward about the first arm fulcrum 39. During this time, the spring 38 passes the linear position of the first arm fulcrum 39 and the second arm fulcrum 35, and the first arm 32 imparts an elastic force to rotate the guide member pin 46 side to the left, and the table panel 20. Alternatively, even if an external force is applied to the guide member 40, it is difficult for them to be separated from each other. When the table panel 20 is returned to the storage position, the locking rod 23 arranged at the lower portion of the table panel 20 is restrained by the locking member 17, and it becomes difficult to pull it out.

Further, the base panel 10 having the recess 11 for accommodating the table panel 20 in the substantially central portion facilitates the storage of the table panel 20, and the appearance at the time of storage is good. In particular, in this embodiment, the front member 14 that covers the recess 11 into which the table panel 20 in the center of the base panel 10 can be inserted and removed is integrally attached to the guide member 40, and the recess in the center of the base panel 10 is integrated. 11 and the front member 14 form a space into which the table panel 20 can be inserted and removed.
The front member 1 can be seen from the outside without showing the storage state of 0.
The appearance can be influenced by the design property of No. 4.

Then, the first arm 32 and the second arm 36 which give elastic force so that the table panel 20 is kept in the storage position and the use position of the predetermined tilt angle θ.
Has a biasing force applying means 60 formed of a spring 38 and having a snap mechanism, and also has a restricting means 50 for restricting the rotation of the table panel 20 which rotates about the support shaft 45 of the guide member 40. Therefore, the base panel 1
Since the frame member 30 attached integrally with 0 and the relative position of the frame member 30 and the guide member 40 do not easily change, the position of the table panel 20 does not change due to vibration and slight external force. That is, even if the table panel 20 vibrates a vehicle that a person gets on or off, or the table panel 20 touches a person, the position of the horizontal plane does not change.

As described above, in the seat back table of this embodiment, the table panel is provided between the storage position in which the table panel 20 is substantially parallel to the seat back and the use position in which the upper surface of the table panel 20 projects horizontally. In the seat back table in which the table 20 is set by rotating and fixing the table 20, the means for fixing the table panel 20 in the use position is a locking rod 23 arranged at the end of the table panel 20.
Elastic coupling part 51 for elastically holding the locking member composed of the locking rod 23 and the locking member composed of the locking rod 23, and the elastic coupling part 5.
1 includes a moving member 52 that is movable in the rotation direction of the table panel 20, and an adjusting rod 53 that has a screwing portion 55 that is screwed into the moving member 52 and that is rotatable by an external force. is there.

Therefore, the locking member composed of the locking bar 23 disposed at the end of the table panel 20 rotatable about the support shaft 45 and the locking member composed of the locking bar 23 are elastically held. And an elastic coupling portion 51 for
When the locking member formed of the locking rod 23 and the elastic coupling portion 51 are in the locked state at the use position where the upper surface of the locking rod 23 is horizontally projected, the elastic coupling portion 51 is the locking member configured of the locking rod 23. Since it is elastically held, the locked state of the table panel 20 that is rotatable about the support shaft 45 cannot be released unless an external force greater than the elastic force of the elastically holding the table panel 20 is applied. Therefore, even when vibrations are applied to and from a normal automobile and the table panel 20 is touched when getting on and off, the use position of the table panel 20 does not change.

Further, the elastic coupling part 51 for elastically holding the locking member composed of the locking rod 23 is the screw part 5 of the adjusting rod 53.
5, the adjustment lot 53 is rotated by an external force, whereby the locking position of the locking member composed of the locking rod 23 and the elastic coupling portion 51 that is elastically held is displaced, whereby the usage state. It is possible to change the position of the upper surface of the table panel 20 located at, and even if the inclination of the seat back changes,
The horizontal plane can be adjusted according to the inclination.

By the way, the base panel 10 attached to the seat back of the above-mentioned embodiment and having the concave portion 11 at the substantially central portion thereof covers the entire rear surface of the seat back, but in the case of implementing the present invention, It is possible to cover the entire rear side of the seat back, or to cover a part of the rear side of the seat back. However, in order to prevent the difference from the automobile seat, it is preferable to cover the entire rear surface of the seat back and to make the surface treatment the same as that of the automobile seat.

Further, the guide member 40 of which the end portion is axially supported by the frame member 30 of the above embodiment, and the guide groove 41 is provided in the longitudinal direction thereof and the support shaft 45 is provided at the other end portion in the longitudinal direction thereof,
The guide groove 41 is composed of the linear groove portion 43 and the peripheral groove portion 43. However, when the present invention is embodied, if the table panel 20 itself rotates between the storage position and the use position. Good.

Then, the table panel 20 of the above embodiment.
The locking member and the elastic coupling portion 51 arranged at the end of the table panel 20 of the means for fixing the locking rod to the use position is the locking rod 2
3 and a substantially Y-shaped elastic connecting portion 51 for elastically holding the same, the locking member in the case of implementing the present invention has a predetermined shape in the form of the elastic connecting portion 51 for elastically holding. Any shape can be used as long as it can be supported by the holding pressure.

Further, the moving member 5 in which the elastic coupling portion 51 of the above embodiment is movable in the rotation direction of the table panel 20.
2 has a slit 17 formed to prevent rotation,
In the case of carrying out the present invention, since the positional displacement is obtained by screwing, it may be slidable by abutting against another member or the like.

Further, the adjusting lot 53 which has the screwing portion 55 which is screwed with the moving member 52 of the above-mentioned embodiment and is rotatable by the external force is rotated through the bevel gears 54 and 57. When carrying out the invention, it is possible to rotate directly or indirectly.

The frame member 30 integrally attached to the base panel 10 of the above embodiment is the base panel 1
0 is a synthetic resin and the frame member 30 is a metal plate. However, in the case of implementing the present invention, if the mechanical strength of the frame member 30 is obtained, they are formed of the same material. You can also do it. The base panel 10 can also be used as an automobile seat. That is,
The frame member 30 may be attached to a seat component of an automobile, or may be commonly used as a seat component. For example, the seat back table may be incorporated into the seat back itself.

[0048]

As described above, in the seat back table of the present invention, the locking member disposed at the end of the table panel rotatable about the support shaft and the locking member is elastically held. An elastic coupling portion is provided, and when both the locking member and the elastic coupling portion are in a locked state, the elastic coupling portion elastically holds the locking member, so that it is elastically attached to the table panel. Since the locked state of the two will not be released unless an external force greater than the elastic force of the elastic holding part is applied, the vibrations of getting on and off a normal car, and even if the table panel is touched when getting on and off, The use position does not change. Further, the elastic coupling portion that elastically holds the locking member is screwed with the threaded portion of the adjustment lot, and by rotating the adjustment lot by an external force, the elastic coupling portion that elastically holds the locking member and the locking lot. The locking position of the table panel is displaced, whereby the position of the upper surface of the table panel in use can be changed, and even if the inclination of the seat back changes, the horizontal plane can be adjusted according to the inclination, and the table panel can be adjusted. The usability of can be improved.

[Brief description of drawings]

FIG. 1 is a front view showing the left half of the appearance of a stored state of a seat back table according to an embodiment of the present invention.

2 is a configuration diagram of a frame member, a guide member, and a table panel at a position corresponding to a cutting line BB showing a stored state of the seatback table of FIG.

3 is a sectional view taken along the section line AA showing the stored state of the seatback table of FIG.

FIG. 4 is a configuration diagram of a state in which the guide member (table panel) of FIG. 2 is tilted and the table panel is pulled out.

5 is a configuration diagram of a state in which the guide member of FIG. 2 is tilted and a table panel is rotated.

6 is an enlarged explanatory view of a main part of the restricting means in a cross-sectional view taken along the section line AA showing the stored state of the seat back table in FIG. 1.

FIG. 7 is a cross-sectional view of a main part showing a knob for varying the regulation position by the regulation means of FIG.

FIG. 8 is a cross-sectional view of a main portion of a support shaft portion of a seat back table according to an embodiment of the present invention.

9 is a cross-sectional view taken along the section line CC of the seat back table shown in FIG. 3 showing a stored state.

FIG. 10 is a cross-sectional view of an essential part of a locking means portion of the seat back table according to the embodiment of the present invention.

FIG. 11 is a perspective view showing a conventional seat back table in use.

[Explanation of symbols]

 20 table panel 23 locking rod 40 guide member 41 guide groove 45 support shaft 50 regulating means 51 elastic coupling portion 52 moving member 53 adjusting rod 55 screw portion

Claims (1)

[Claims] 1. A seat back table which is set by rotating and fixing between a storage position in which a table panel is substantially parallel to a seat back and a use position in which the upper surface of the table back protrudes horizontally. The means for fixing to the table panel includes a locking member arranged at an end of the table panel, an elastic coupling section that elastically holds the locking member, and the elastic coupling section is movable in the rotation direction of the table panel. The seat back table, comprising: a moving member, and an adjusting lot that has a screwing portion that is screwed with the moving member and is rotatable by an external force.