JP2605528B2 - Seat back table - Google Patents

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 which is used when eating or drinking or performing business 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.

Referring to FIG. 1, an automobile seat 100 includes a seat cushion 101, a seat back 102, and a headrest 103. A conventional seatback table 110 is provided with a pair of arms 111 attached to a headrest bar 104 of a headrest 103 with respect to a seatback 102, a table panel 112 rotatably supported below each arm 111, and a table panel thereof. 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 held by a holding member (not shown) at the storage position. In use, the table panel 112 is arranged at a use position, and foods and the like are placed thereon. Therefore, in this state, the sheet 10
The occupant sitting behind 0 can eat and drink or do business in the cabin.

[0006]

However, in the above-described conventional seat back table 110, since the table panel 112 at the storage position protrudes from the back of the seat back 102, not only the appearance when not in use is reduced, but also the appearance is reduced. ,
At the time of getting on and off, the occupant easily comes into contact with the table panel 112. At this time, the holding member comes off and the table panel 112
Sometimes turned to the use position. Further, since the table panel 112 is held at the use position by the chain 113, the chain 113 is in the
The usability of 12 was bad. In addition, since the table panel 112 at the use position is freely rotatable upward, when the person enters or exits the vehicle, the table panel 112 swings up and down in response to the vibration, and the drink may be spilled. When the inclination angle of the seat back 102 is changed, the table panel 112 cannot be held horizontally, and there is a possibility that food or office supplies may slip down.

Accordingly, an object of the present invention is to provide a seat back table in which the operation of the table panel is ensured, the swing of the table panel is prevented and stabilized, and the usability of the table panel is improved. .

[0008]

In order to solve the above-mentioned problems, a seat back table according to the present invention has a frame member mounted on a seat back, an end portion of which is pivotally supported by the frame member, and a length of the frame member. A guide member provided with a support shaft at the other end of the guide groove and its length direction in the vertical direction,
The table panel is accommodated in a storage position along a guide groove and a support shaft of the guide member that can be raised and lowered, and the rotation of the table panel that rotates about the support shaft of the guide member is restricted by a restricting means. The table panel is held in a use position where the table panel is rotated about a support shaft of the guide member by an elastic force.

[0009]

In the seat back table of the present invention, the end of the guide member is pivotally supported by the frame member attached to the seat back, and the guide groove is supported in the length direction and the guide groove is supported by the other end in the length direction. A shaft is provided so that the table panel can move up and down along the guide groove and the support shaft of the guide member. In addition, the table panel that is rotatable around the support shaft of the guide member restricts the rotation of the table panel by the restricting means. The storage position is when the table panel is stored along the guide groove and the support shaft of the guide member, and
The table panel is rotated about a support shaft of the guide member, and is set to a tilt position tilted from the storage position. Further, when the table panel is in the retracted position or the tilted position, an elastic force is applied by an urging force applying means so as to maintain the state.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A seat back table according to an embodiment of the present invention will be described below.

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

In the figure, a base panel 10 is entirely made of a synthetic resin, and a concave portion 11 (see FIG. 3) into which a table panel 20 can be inserted and detached is opened at a central portion thereof in the upper direction. Side wall portions 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 wall portions 12. At the lower end of the frame member 30, a guide member 40 is supported by bolts 31.
A front member 14 that covers the concave portion 11 into which the table panel 20 at the center of the base panel 10 can be inserted and detached is integrally attached to the guide member 40. 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 material is attached to the front of the front panel 4 and forms a bag for accommodating small articles such as magazines with the front member 14. Also, the base panel 10
A knob 15 is provided at the upper left of the front of the device. The knob 15 adjusts the angle of the use position of the table panel 20, which will be described later. Table panel 2
The handle 24 is formed by a recess so that the handle 0 can be easily put in and out.

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

In FIG. 2, a 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 pivotally supported by a bolt 31 at a lower end of the frame member 30, and a guide groove 41 is provided in a length direction of the guide member 40, and a support shaft 45 is provided upright at an upper end portion in the length direction. ing. The guide groove 41 includes a straight groove 43 and a peripheral groove 44. Also, the straight groove 4
Reference numeral 3 denotes a distance slightly shorter than the table panel 20, and the peripheral groove portion 44 rotates on a circumference around a support shaft 45 fixed to the guide member 40.

The substantially arm-shaped first arm 32 is rotatably supported at a first arm fulcrum 39 of the guide member 40. A long hole 33 formed at one end of the first arm 32
Restricts the movement of the guide member pin 46 erected on the guide member 40. A small hole 34 formed at the other end of the first arm 32 is formed at one end of a second arm 36 rotatably supported at a second arm fulcrum 35 of the guide member 40. It is fitted with the second arm fixing pin 37 erected. A spring 38 is attached to the other end of the second arm 36.
Thereby, a tensile force is applied between the first arm 32 and the long hole 33 side from the first arm fulcrum 39 of the first arm 32.

That is, the first arm 32 having a substantially rectangular shape is used as 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 a spring 38 so that the arm 32 rotates leftward on the guide member pin 46 side. In this state, an 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 so that the first arm 32 is rotated leftward, so that the first arm 32 is easily rotated leftward and does not tilt by a slight external force. Therefore, the table panel 20 and the guide member 40 do not move from the stored state due to vibration of the vehicle or the like.

Here, the guide member 40 is connected to the frame member 3.
When the first arm 32 is rotated away from 0 and tilted by a predetermined angle, the substantially arm-shaped first arm 32 guides the guide member pin 46 erected on the guide member 40 while moving through the elongated hole 33. When the guide member pin 46 comes into contact with the uppermost portion of the elongated hole 33, 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 between the first arm fulcrum 39 and the second arm fulcrum 35, an elastic force is applied so that the first arm 32 rotates leftward on the guide member pin 46 side. . But spring 3
When the spring 8 passes through the linear position between the first arm fulcrum 39 and the second arm fulcrum 35, the spring 38 applies an elastic force to rotate the first arm 32 clockwise (rotates downward), and a slight external force The first arm 32 is prevented from easily rotating upward. In other words, it has a snap mechanism using the first arm 32, the second arm 36, and the spring 38, and these constitute the urging force applying means 60 of the present embodiment.
When the spring 38 is located on the left side of the linear position between the first arm fulcrum 39 and the second arm fulcrum 35 as shown in FIG. 2, the guide member 40 is pulled toward the frame member 30;
When the guide member 40 is located on the right side, it acts in a direction to separate the guide member 40 from the frame member 30 side.

At the lower part of the table panel 20, guide pins 21 are provided on both sides, and the guide pins 21 move in guide grooves 41 of a 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.

As shown in FIG. 3, a locking bar 23 made of a bar is disposed at the lower center 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
The upward movement is restrained by a locking member 17 made of an elastic body disposed below the concave portion 11 of the base panel 10. 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 bar 23 and the locking member 17 will be described in detail with reference to FIG.

The locking bar 23 disposed at the lower part of the table panel 20 is made of a material or a structure having little change in elasticity.
The locking member 17 has a protruding ridge at its upper end, so that when the locking bar 23 descends from above, its elasticity allows the lowering of the locking bar 23, and the locking bar 23 is positioned below the ridge of the locking member 17. At this time, the locking member 17 is engaged beyond the center of the locking bar 23 to restrain the vertical rise. The table panel 20 has a support shaft 45 of the guide member 40 and the table guide groove 22 coupled to each other.
Since the zero guide groove 41 and the guide pin 21 are connected, 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 located at a position lower than the position of the bolt 31.
Has a binding relationship with When the guide member 40 is rotated by the maximum movement distance from the frame member 30, that is, by the tilt angle θ, the position of the locking bar 23 also changes, and moves from the position L of the vertical center axis to the left. At this time, when the locking member 17 comes into contact with a part of the side portion of the locking bar 23 and the table panel 20 is pulled in the tilting angle θ direction by an external force, the locking member 17 is locked by the elasticity of the locking member 17. The engagement relationship with the bar 23 is released.

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

The table panel 20 has a tilt angle θ.
Is set sufficiently far from the upper part of the headrest or the seat back, the hand is not pinched by the upper part of the head rest or the seat back when the table panel 20 is pulled out. Since there is no contact with the upper surface, 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 between the storage position and the use position will be described.

As described above, when the table panel 20 is pulled, the frame member 3 and the guide member 40 are pulled together.
0 is tilted by the tilt angle θ determined by the first arm 32. When the guide member 40 is tilted from the frame member 30 by the tilt angle θ by the pulling force applied to the table panel 20, the engagement relationship between the locking member 17 and the locking bar 23 is released, and the drawing can be easily performed. Table panel 20
The movement of the guide member 40 is performed as shown in FIGS.
Since the support shaft 45 and the table guide groove 22 are connected to each other and the guide groove 41 of the guide member 40 and the guide pin 21 are connected to each other, the support shaft 45 extends along the linear groove 43 of the guide groove 41 of the guide member 40. When the table panel 20 is further lifted, the table member 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
As shown in FIG. 3, is determined by the restricting means 50 of the table panel 20 that rotates about the support shaft 45 of the guide member 40 and restricts the rotation.

The restricting means 50 of the present embodiment includes a substantially Y-shaped elastic connecting portion 51 for restraining the upward movement of the locking rod 23 provided at the lower portion of the table panel 20 and elastically connecting the locking bar 23. A movable member 52 formed integrally with the movable member 52 and capable of moving the slit 17 allowing only vertical movement;
An adjusting rod 53 having a bevel gear 54 and a bevel gear 54, a moving member spring 56 for preventing rattling of the moving member 52, and a bevel gear 57 meshing with the bevel gear 54 shown in FIG. 7. And bevel gear 5
The connecting rod 58 is connected between the knob 7 and the knob 15. The connecting rod 58 is provided with a plurality of bearings so as to prevent axial movement 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. The bevel gear 57 transmits its rotation to the meshing bevel gear 54 as shown in FIG. Bevel gear 5
The rotation of 4 causes the rotation of the adjustment 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 substantially Y-shaped elastic coupling part 51 integrally formed is displaced up and down along the slit 17, and the movement restraining position of the locking bar 23 provided at the lower portion of the table panel 20 changes. Therefore, a change of a predetermined angle + δ1 to −δ2 from the standard position of the table panel 20 can be obtained by the displacement of the position of the elastic coupling portion 51 elastically coupled to the locking bar 23 provided at the lower portion of the table panel 20. .

As described above, since a change of a predetermined angle + δ1 to -δ2 can be obtained from the standard position of the table panel 20, even if the occupant changes the angle of the seat back according to his / her preference, the table panel 20 can be obtained. Can always be a horizontal plane.

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

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

Grasping around the handle 24 shown in FIGS. 1 and 3,
Pull the table panel 20 toward you. Thereby, the guide member 40 is rotated so as to be separated from the frame member 30, and the substantially arm-shaped first arm 32 is moved to the guide member pin 46.
Is in contact with the top of the elongated hole 33, the first arm fulcrum 3
9 prevents the guide member 40 from tilting. During this time, the spring 38 passes through the linear position between the first arm fulcrum 39 and the second arm fulcrum 35, and applies an elastic force so that the first arm 32 rotates leftward on the guide member pin 46 side. Even if a slight external force is applied in the direction of pushing back, it does not easily return. At this time,
The guide member 40 is at the position shown in FIG.

By pulling the table panel 20 forward, the locking bar 23 disposed below the table panel 20 is released from the restraint by the locking member 17, and the table panel 20 is moved as shown in FIG. In addition, the support shaft 45 fixed to the guide member 40 moves in the table guide grooves 22 provided on both sides of the table panel 20 and can be raised along the linear grooves 43 of the guide grooves 41 of the guide member 40. Then, the guide pin 21 is attached to the peripheral groove 4 of the guide groove 41.
4, the table panel 20 is in the position shown in FIG. In the table panel 20, the locking rods 23 constituting the restricting means 50 of the present embodiment are elastically coupled to the substantially Y-shaped elastic coupling portions 51, and the upward movement thereof is restricted, and the table panel 20 is elastically coupled. Downward movement becomes impossible with a small 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 knob 15 is rotated when the table panel 20 does not protrude horizontally, the bevel gear 57 is rotated via the connecting rod 58, and the rotation is transmitted to the bevel gear 54 therefrom, and the moving member 52 is moved. By moving vertically along the slit 17, the substantially Y-shaped elastic coupling part 51 integrally formed is vertically displaced along the slit 17. Therefore, the movement restricting position of the locking rod 23 disposed at the lower portion of the table panel 20 changes, and the displacement of the position of the elastic coupling portion 51 elastically coupled to the locking rod 23 disposed at the lower portion of the table panel 20 causes A change of a predetermined angle + δ1 to −δ2 from the standard position of the table panel 20 can be obtained, and even when the angle of the seat back is changed, the upper surface of the table panel 20 can always be in the horizontal position. . Alternatively, the angle can be changed by a predetermined angle from + δ1 to -δ2 from the standard position of the table panel 20 depending on the application.

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

The grip near the handle 24 of the table panel 20 is rotated by a rotation angle α by a force larger than the elastic coupling force between the locking rod 23 constituting the regulating means 50 and the substantially Y-shaped elastic coupling portion 51. 4, the table panel 20 is brought into a linear state with respect to the guide member 40, and the support shaft 45 fixed to the guide member 40 and the table panel 20 as shown in FIG.
The table panel 20 is moved by the table guide grooves 22 provided on both sides of the table member 20, and at the same time, the guide pins 21 of the table panel 20 are lowered along the linear grooves 43 of the guide grooves 41 of the guide member 40. When the guide pin 21 of the table panel 20 is positioned at the lowermost part of the linear groove 43 of the guide groove 41 of the guide member 40 and stops moving,
Locking bar 23 arranged below table panel 20
Is in elastic contact with the locking member 17, and is at the unlocking position between the locking bar 23 and the locking member 17.

Here, when the vicinity of the handle 24 of the table panel 20 is pressed in the direction of the frame member 30 by a force greater than the elastic force of the spring 38 and rotated by the tilt angle θ, the guide member 40 is moved to the frame member 30 side. Pivoted to
The substantially arm-shaped first arm 32 moves the guide member pin 46 in contact with the lower portion of the elongated hole 33 and rotates leftward about the first arm fulcrum 39. During this time, the spring 38 passes through the linear position between the first arm fulcrum 39 and the second arm fulcrum 35, and applies an elastic force so that the first arm 32 rotates leftward on the guide member pin 46 side. Alternatively, even when an external force is applied to the guide member 40, the two are not easily separated from each other. When the table panel 20 is returned to the storage position, the locking bar 23 provided at the lower part of the table panel 20 is restrained by the locking member 17, and it becomes difficult to pull out the locking bar 23.

As described above, the seat back table of the present embodiment is attached to the seat back, and the base panel 10 having the concave portion 11 for accommodating the table panel 20 at a substantially central portion thereof, and being integrally attached to the base panel 10. A frame member 30, a guide member 40 having an end portion pivotally supported by the frame member 30, a guide groove 41 provided in a length direction thereof, and a support shaft 45 provided at the other end in the length direction thereof; The table panel 20 which is movable up and down along the guide groove 41 and the support shaft 45 of the member 40 and is rotatable about the support shaft 45 of the guide member 40, and is rotated about the support shaft 45 of the guide member 40 A restricting means 50 comprising a locking rod 23 for restricting the rotation of the table panel 20 and an elastic coupling portion 51;
The table panel 20 is rotated about the support shaft 45 of the guide member 40 and the storage position stored in the recess 11 of the base panel 10 along the guide groove 41 and the support shaft 45 of the base panel 10. Arm 3 that applies an elastic force so as to be held in a state of use protruding from the first arm 3
2, a biasing force applying means 60 comprising a second arm 36 and a spring 38 and having a snap mechanism.

Therefore, the table panel 2 is provided substantially at the center.
The base panel 10 having the concave portion 11 for accommodating the “0” facilitates the storage of the table panel 20 and has a good appearance when stored. In particular, in the present embodiment, the front member 14 that covers the concave portion 11 in which the table panel 20 at the center of the base panel 10 can be inserted and detached is integrally attached to the guide member 40, and the concave portion at the center of the base panel 10 is provided. 11 and the front member 14 form a space in which the table panel 20 can be inserted and removed, so that the stored state of the table panel 20 is not visible from the outside. can do.

The first arm 32 and the second arm 36 for applying elastic force so that the table panel 20 is held at the storage position of the table panel 20 and the use position at a predetermined tilt angle θ are composed of a spring 38 and a snap mechanism. And the restricting means 50 for restricting the rotation of the table panel 20 that rotates about the support shaft 45 of the guide member 40.
Since the relative position between the frame member 30 and the frame member 30 and the guide member 40 which are integrally attached to the table panel 20 does not easily change, the table panel 20 does not change its position due to vibration and slight external force. That is, even if the table panel 20 vibrates a vehicle on which a person gets on or off, or if the table panel 20 touches a person, the position of the horizontal plane does not change.

The base panel 10 which is attached to the seat back of the above embodiment and has a recess 11 at a substantially central portion thereof covers the entire rear surface of the seat back. It is also possible to cover the entire area behind the seat back, or to cover a part of the rear of the seat back. However, in order to prevent a difference from an 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.

Also, the frame member 30 integrally attached to the base panel 10 of the above embodiment is
0 is made of a synthetic resin and the frame member 30 is made of a metal plate. However, in the case where the present invention is implemented, if the mechanical strength of the frame member 30 is obtained, both are formed of the same material. You can also. Further, the base panel 10 can be used as an automobile seat. That is,
The frame member 30 can be mounted on a seat component of an automobile, or can be shared as a seat component. For example, a seat back table can be incorporated in the seat back itself.

The guide member 40 has an end portion pivotally supported by the frame member 30 of the above-described embodiment, and a guide groove 41 provided in the length direction and a support shaft 45 provided at the other end in the length direction.
The guide groove 41 is configured by the linear groove portion 43 and the peripheral groove portion 43. However, in the case of implementing the present invention, it is sufficient that the table panel 20 is linearly moved and rotated. However, when the guide groove 40 is provided in the guide member 40 as in the above embodiment, the trajectory of the linear movement and the rotation of the table panel 20 is constant, and the predetermined movement can be performed.

Further, the table panel 20 of the above-described embodiment, which can be moved up and down along the guide groove 41 and the support shaft 45 of the guide member 40 and which can be rotated around the support shaft 45 of the guide member 40, embodies the present invention. When performing, the guide member 40
Linearly movable in the longitudinal direction, and the guide member 40
What is necessary is just to be rotatable around.

Further, the restricting means 50 including the locking rod 23 for restricting the rotation of the table panel 20 which rotates about the support shaft 45 of the guide member 40 and the elastic coupling portion 51 in the above-described embodiment, The rod 23 and the elastic connecting portion 51 are elastically connected to each other so that the rod 23 cannot rotate with respect to the load on the table panel 20 and can be finely adjusted so that the horizontal surface of the table panel 20 can be maintained. In practicing the present invention, a structure that cannot rotate with respect to the load of the table panel 20 may be adopted.

Then, the table panel 20 of the above embodiment is used.
Is stored in the recess 11 of the base panel 10 along the guide groove 41 and the support shaft 45 of the guide member 40, and the table panel 20 is
The urging force applying means 60 that tilts about the support shaft 45 of the first arm 32 and applies an elastic force so as to be held at a position protruding from the base panel 10 includes a first arm 32 and a second arm 3.
6. The biasing force applying means 60 which includes the spring 38 and has a snap mechanism. However, when the present invention is implemented, the elastic force is applied so that the table panel 20 is maintained in the retracted position and the inclined position. May be used as long as it gives

[0046]

As described above, the seat back table of the present invention has a frame member that changes its inclination in accordance with the inclination of the seat back, and the guide grooves and supports of the guide members that are pivotally supported by the frame member. A table panel that can move up and down along an axis and that is rotatable about a support shaft of the guide member; and a restricting unit that restricts rotation of the table panel that rotates about a support shaft of the guide member. A storage position in which the table panel is stored along a guide groove and a support shaft of the guide member, and a tilt position in which the table panel rotates about a support shaft of the guide member and tilts from the base panel. And an urging force applying means for applying an elastic force for maintaining the state.

Therefore, when the storage member is in a retracted state in which the guide member and the frame member are brought close to each other with respect to the frame member attached to the seat back, and
When the guide member pivotally supported by the frame member is tilted, that is, when the guide member is in the use position, an elastic force is applied to the state by the urging force applying means, and the state is maintained. Since the rotation of the table panel that rotates about the support shaft of the member is limited by the restricting means, even if vibration or external force is applied to the table panel, the table panel does not move due to the vibration or external force. Can be prevented.

Further, since the table panel can be moved up and down along the guide groove and the support shaft of the guide member which is supported by the frame member, and can rotate around the support shaft of the guide member. The operation of the table panel is ensured, and the usability of the table panel can be improved.

[Brief description of the drawings]

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

FIG. 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 seat back table of FIG. 1;

FIG. 3 is a cross-sectional view taken along line AA of the storage state of the seat back table of FIG. 1;

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

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

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

FIG. 7 is a cross-sectional view of a main part showing a knob for changing a restriction position by the restriction means of FIG. 6;

FIG. 8 is a sectional view of a main part of a spindle portion of the seat back table according to the embodiment of the present invention.

FIG. 9 is a cross-sectional view taken along a cutting line CC showing the storage state of the seat back table of FIG. 3;

FIG. 10 is a sectional view of a main part of a locking means of the seat back table according to one embodiment of the present invention.

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

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Base panel 20 Table panel 23 Lock bar 30 Frame member 32 1st arm 36 2nd arm 38 Spring 40 Guide member 41 Guide groove 45 Support shaft 50 Restriction means 51 Elastic coupling part 60 Energizing means

Claims (1)

(57) [Claims] 1. A frame member that changes the inclination according to the inclination of a seat back, an end portion of which is pivotally supported by the frame member, and a guide groove in the length direction thereof and a guide groove in the other end thereof in the length direction. A guide member provided with a support shaft, a table panel capable of ascending and descending along a guide groove and a support shaft of the guide member, and being rotatable around a support shaft of the guide member; a support shaft of the guide member A restricting means for restricting the rotation of the table panel rotating about the center; a storage position where the table panel is stored along a guide groove and a support shaft of the guide member; A seat back table comprising: an urging force applying means that applies an elastic force that rotates about an axis and maintains a state at a tilted position tilted from the base panel.