JP4024733B2 - Vehicle seat - Google Patents

Description

  The present invention relates to a vehicle seat, and more particularly to a vehicle seat provided with a table that can be tilted backward.

The seat employed in a vehicle such as an automobile includes, for example, at least a seat cushion and a seat back supported by the seat cushion, and the back of the seat back has a back of the seat back. A table is provided that is movable between a closed state along the line and a substantially horizontal fully open state (for example, Patent Document 1).
Japanese Utility Model Publication No. 2-125436

  However, in such a conventional technique, the table rotates around the lower hinge, but the engagement means such as a latch that always keeps the table in the closed state when the table is opened is the occupant's Touching the line of sight exposes the functional parts, which may impair the merchantability.

  The present invention has been made by paying attention to such a conventional technique, so that the engaging means such as a latch that always keeps the table closed in a state where the table is opened does not touch the sight line of the occupant. As a result, the present invention provides a vehicle seat that significantly improves the merchantability.

  In order to solve such a conventional technique, the invention according to claim 1 includes at least a seat cushion and a seat back supported by the seat cushion, and the seat back is provided with a back of the seat back. A table that is rotatably supported around a hinge disposed on the lower side between a closed state and a substantially horizontal fully open state along the back surface of the head, a latch that holds the table in the closed state, and Urging means for constantly urging the table in the opening direction, and the table is embedded in a recess formed in the back surface of the seat back in the closed state and is flush with the back surface. A main body on which an article can be placed at the time of opening, a lock that is disposed in the main body and that can be engaged and disengaged from the latch, and can be operated in a direction to release the lock from the latch. Becomes more an operation means, the distal end portion of the lock is not protruded from the side end of the body of the table, the latch is characterized in that Naru can engaged into the side end portion of the body of the table.

  According to a second aspect of the present invention, in the vehicle seat according to the first aspect, the latch can be inserted into an opening of a side end portion of the main body of the table, and a front end portion of the lock. A delta-shaped engaging portion is formed between the two.

  A third aspect of the present invention is the vehicle seat according to the second aspect, wherein the latch is pivotally supported by a pin so as to be rotatable in the left-right direction with respect to the seat back and is always a main body of the table. Urged in the direction of entering the main body from the opening of the side end of the table, and when the table is closed, the contact position between the opening of the side end of the main body of the table and the engaging portion of the latch, and the A component force is always applied in a tangential direction with respect to a straight line connecting the pins.

  According to a fourth aspect of the present invention, there is provided the vehicle seat according to any one of the first to third aspects, wherein the latch is preliminarily mounted on a garnish molding that is fixed to the back surface of the seat back. It is characterized by being supported.

According to the first aspect of the present invention, the table provided on the back surface of the seat back is rotatably supported in a closed state that is flush with the back surface and in a substantially horizontal fully open state. In the table, the table is provided with a lock whose tip can be engaged and disengaged from the latch, and an operating means that can be operated in a direction to release the lock from the latch. Since the latch can be engaged in the side end of the table, the engaging means such as a latch that always keeps the table in the closed state when the table is opened is in line with the occupant's line of sight. is no mention, Fig be a significant improvement in product properties.

  According to the second aspect of the present invention, the closed state of the table is secured by engaging the latch into the opening of the side end portion of the table, and the delta is provided between the front end portion of the lock and the latch. By forming the engagement portion in the shape, the closed state is released if the latch is pushed with the lock, and the lock release is not hindered.

  According to the third aspect of the present invention, the latch is pivotally supported by the pin so as to be rotatable in the left-right direction with respect to the seat back, and always enters the main body from the opening at the side end of the main body of the table. When the table is closed, a component force is always applied in a tangential direction with respect to a straight line connecting the contact position between the opening of the side end of the table and the engaging portion of the latch and the pin. A simple configuration that allows the table to be opened only by removing the latch from the opening can reduce the manufacturing cost.

  According to the fourth aspect of the present invention, since the latch is previously supported by the garnish molding fixed to the back surface of the seat back, the latch positioning is integrated with the unitized garnish molding. Dimensional accuracy is significantly improved.

  For the purpose that the engaging means does not touch the line of sight of the occupant when the table is opened, the front end of the lock does not protrude from the side end of the table, and the latch can be engaged in the side end of the table. It was realized.

  1 to 6 show a vehicle seat according to an embodiment of the present invention. Reference numeral 1 denotes a vehicle seat that is a front seat. The vehicle seat 1 includes a seat cushion 2 that is slidable in a front side FR and a rear side RR by a slide device (not shown), and a reclining device (not shown) in the seat cushion 2. A seat back 3 that can be tilted to the front FR and the rear RR about the central axis 5, and a headrest 4 that is supported by the top 3 a of the seat back 3 and that is movable substantially vertically and can be tilted forward. It becomes. Reference numeral 7 denotes a rear seat disposed on the rear side of the front seat 1, and the rear seat 7 includes a seat cushion 8 fixed to a vehicle body (not shown) and a seat back 9 also fixed to the vehicle body. Become.

  On the surface of the rear upper RR of the seat back 3 of the front seat 1, that is, the back surface 3b, a closed state indicated by a two-dot chain line along the back surface 3b and a substantially horizontal fully open state indicated by a solid line. A table 14 that is rotatably supported around a hinge 13 disposed on the lower LWO and that is slidable to the front FR and the rear RR in the fully opened state, and holds the table 14 in a closed state. And a coil torsion spring 11 as a biasing means wound around a hinge 13 so as to constantly bias the table 14 in the opening direction. Reference numeral 23 denotes a rubber which is a member disposed in the main body 15 of the table 14 and interposed so that the coil torsion spring 11 does not directly interfere with the main body 15.

The table 14 is embedded in a recessed portion 12 formed on the back surface 3b of the seat back 3 in the closed state so as to be flush with the back surface 3b and on which an article such as a camera can be placed when opened. 15, a lock 16 that is disposed in the main body 15 and can be engaged with and disengaged from the distal end portion 16 a of the latch 10, and can be operated by a connecting means (not shown) in a direction to release the lock 16 from the latch 10. The operation means 17 is included. The distal end portion 16 a of the lock 16 does not protrude from the side end portion 15 a of the main body 15 of the table 14. The latch 10 can be engaged in the opening 18 of the side end 15 a of the main body 15 of the table 14. The latch 10 is formed with a delta engaging portion 19 between the front end portion 16 a of the lock 16.

  The latch 10 is pivotally supported in advance in the left and right directions LH and RH with respect to a garnish molding 21 fixed to the back surface 3b of the seat back 3 by a pin 20, and is always on the side end of the main body 15 of the table 14. The coil spring 22 is biased in a direction to enter the main body 15 from the opening 18 of the portion 15a. The coil spring 22 is suspended between the bracket 24 of the garnish molding 21 and the end portion 10a of the latch 10, and always pulls the end portion 10a of the latch 10.

  When the table 14 is closed, the table 14 is divided into a tangential direction 26 with respect to a straight line 25 that connects the contact position between the opening 18 of the side end 15 a of the main body 15 of the table 14 and the engaging portion 19 of the latch 10 and the pin 20. Force is always acting.

  Next, the operation of the vehicle seat 1 will be described.

  The seat back 3 is rotatably supported around a hinge 13 disposed on the lower LWO in a closed state along the back surface 3b of the seat back 3 and a substantially horizontal fully opened state. Since the table 14 slidable back and forth in the fully opened state is provided, the height of the table 14 in use is appropriate for the occupant 27 seated on the seat cushion 8 of the rear seat 7 and the main body of the table 14. As shown in FIG. 1, by sliding 15 to the rear side RR, it can move to the front side of the occupant 27, and the usability of the table 14 is remarkably improved.

  Further, a table 14 provided on the back surface 3b of the seat back 3 is rotatably supported in the same closed state and substantially horizontal fully open state as the back surface 3b, and in the closed state of the table 14 by the latch 10. The table 14 is provided with a lock 16 in which the distal end portion 16a can be engaged and disengaged with the latch 10 and an operating means 17 that can be operated in a direction to release the lock 16 from the latch 10. The front end portion 16a does not protrude from the opening 18 of the side end portion 15a of the main body 15 of the table 14, and the latch 10 can be inserted into the opening 18 of the side end portion 15a of the main body 15 of the table 14. In the state where the door is opened, the engaging means such as the latch 10 and the lock 16 which always keeps the table 14 in the closed state does not touch the line of sight of the occupant.

Further, the latch 10 is engaged by being rotated leftward LH by the coil spring 22 into the opening 18 of the side end portion 15a of the main body 15 of the table 14 so that the closed state of the table 14 is ensured. A delta-shaped engaging portion 19 is formed between the tip portion 16 a and the latch 10 . In this state, if the latch 10 is pushed by the tip 16a of the lock 16 by the operating means 17 , the latch 10 rotates against the coil spring 22 to the right RH and the delta engaging portion 19 is released and closed. The completed state will be released and will not hinder the release of the lock 16.

The latch 10 is pivotally supported by the pin 20 so as to be rotatable in the direction of the left side LH and the right side RH with respect to the seat back 3, and is always provided from the opening 18 of the side end 15 a of the main body 15 of the table 14 by the coil spring 22. 15 when the table 14 is closed. When the table 14 is closed, the contact position between the opening 18 of the side end 15a of the main body 15 of the table 14 and the engaging portion 19 of the latch 10 and the pin 20 Since the component force always acts in the tangential direction 26 with respect to the straight line 25 connecting the two, a simple configuration in which the table 14 can be opened only by detaching the latch 10 from the opening 18, and the manufacturing cost can be reduced. .

  Since the latch 10 is previously supported by a garnish molding 21 fixed to the back surface 3b of the seat back 3, the positioning of the latch 10 is integrated with the unitized garnish molding 21, and the dimensional accuracy is remarkably increased. Will improve.

  Such a seat 1 can be applied not only to automobiles but also to seats of all vehicles such as airplanes, ships, and railways.

The side view of the vehicle seat which concerns on one Example of this invention. The perspective view of the back surface of the seat back in the state which opened the table of FIG. Sectional drawing along the SA-SA line of FIG. FIG. 3 is a structural diagram of a main body of the table in FIG. 2. Sectional drawing along the SB-SB line | wire of FIG. The expanded sectional view of the C section of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Seat for vehicles 2 Seat cushion 3 Seat back 3b The back of a seat back 5 Central axis 10 Latch 10a End of latch
11 Coil torsion spring (biasing means)
12 Concave portion 13 Hinge 14 Table 15 Table body
15a Side end 16 of main body 16 Lock 16a Lock tip 17 Operating means 18 Opening 19 Engaging portion 20 Pin 21 Garnish molding 25 Straight line 26 Tangent

Claims (4)

Comprising at least a seat cushion and a seat back supported by the seat cushion;
On the back surface of the seat back, a table rotatably supported around a hinge disposed on the lower side between a closed state and a substantially horizontal fully open state along the back surface of the seat back, and the table A latch that holds the table in a closed state, and a biasing means that constantly biases the table in the opening direction,
The table is embedded in a recessed portion formed on the back surface of the seat back in the closed state so as to be flush with the back surface and on which an article can be placed when opened, and is disposed in the main body. And a lock whose tip can be engaged and disengaged from the latch, and an operating means operable to release the lock from the latch.
The front end of the lock does not protrude from the side end of the main body of the table,
The vehicle seat according to claim 1, wherein the latch is engageable in a side end portion of the main body of the table. The vehicle seat according to claim 1,
The vehicle seat, wherein the latch is engageable in an opening at a side end portion of the main body of the table and is formed with a delta engaging portion between the front end portion of the lock. . The vehicle seat according to claim 2,
The latch is pivotally supported by a pin so as to be rotatable in the left-right direction with respect to the seat back, and is always urged in a direction to enter the main body from the opening of the side end of the main body of the table,
When the table is closed, a component force is always applied in a tangential direction with respect to a contact position between the opening of the side end of the main body of the table and the engaging portion of the latch and a straight line connecting the pins. Vehicle seats to do. A vehicle seat according to any one of claims 1 to 3,
The vehicle seat according to claim 1, wherein the latch is supported in advance by a garnish molding fixed to the back surface of the seat back.

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