JP2005073950A - Vehicle seat - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vehicle seat provided with a garnish molding which is highly accurately positioned with respect to a seat back and can be molded with a small-sized molding die thereby being manufactured at a remarkably reduced cost. <P>SOLUTION: The vehicle seat is constituted in such a way that an upper garnish 13 along the top part 3a of the seat back 3, side garnishes 17 along the side parts 3c of the seat back 3 and a main garnish 15 disposed on the back surface 3b of the seat back 3 are fixed around one reinforcement 30, respectively. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a vehicle seat, and more particularly to a vehicle seat having a garnish molding supported on the back of a seat back.

As a seat adopted in a vehicle such as an automobile, for example, it comprises at least a seat cushion, a seat back supported by the seat cushion, and a garnish molding supported on the back of the seat back, The garnish molding supports a table that is movable between a closed state along the back surface of the seat back and a substantially horizontal fully open state (for example, Patent Document 1).
Japanese Utility Model Publication No. 4-107664

  However, in such a conventional technique, the upper garnish along the top of the seat back of the garnish molding, the side garnish along the side of the seat back, and the back of the seat back are arranged. If the main garnish is integrally formed, the molding die becomes large, and the manufacturing cost increases. If each of them is formed individually, it is difficult to align the positions, the position accuracy to the seat back is difficult to obtain, and a great number of man-hours are required for the alignment, and the manufacturing cost also increases in that respect.

  The present invention has been made by paying attention to such a conventional technique, and has a garnish molding that can achieve a significant reduction in manufacturing cost by being able to be molded with a small molding die with high positioning accuracy to the seat back. A vehicle seat is provided.

  In order to solve the conventional technique, the invention described in claim 1 includes at least a seat cushion, a seat back supported by the seat cushion, and a garnish molding supported by the back surface of the seat back. The garnish molding is composed of an upper garnish along the top of the seat back, a side garnish along the side of the seat back, and a main garnish arranged on the back of the seat back. The upper garnish, the side garnish, and the main garnish are fixed around each of the reinforcements, respectively.

  The invention according to claim 2 is the vehicle seat according to claim 1, wherein the main garnish is formed with a recess capable of storing a table that can be tilted backward, and the recess of the recess. A latch for holding the closed state of the table is pivotally supported on the wall surface, and both sides of the reinforcement are along the outer surface of the wall surface of the recess.

  The invention according to claim 3 is the vehicle seat according to claim 2, wherein the latch is pivotally supported by pins so as to be rotatable in the left-right direction with respect to both side portions of the main garnish. It is biased in the direction of entering the table from the opening at the side end of the table, and the table is supported by a lock that can release the latch.

  A fourth aspect of the present invention is the vehicle seat according to any one of the first to third aspects, wherein a lower end portion of the reinforcement is engaged and supported by the main garnish by a claw portion. The upper end of the reinforcement is engaged and supported by a hook member suspended from the lower end of the upper garnish, and the both sides of the reinforcement are fastened and supported by the side garnish. It is characterized by.

  According to the first aspect of the present invention, the garnish molding is arranged on the upper garnish along the top of the seat back, the side garnish along the side of the seat back, and the back of the seat back. It consists of a main garnish, and the upper garnish, the side garnish, and the main garnish are fixed around each of the reinforcements, so that a single reinforcement is aligned. Therefore, the positioning accuracy to the seat back is increased. In addition, since the mold for molding the garnish molding can be a small mold, the manufacturing cost can be significantly reduced.

  According to the second aspect of the present invention, the main garnish is formed with a recessed portion capable of storing the table that can be tilted backward, and a latch that holds the closed state of the table on the wall surface of the recessed portion. Since both sides of the reinforcement are along the outer surface of the wall surface of the recess, even if the latch is pushed by a lock, the axis support position of the latch is protected by both sides of the reinforcement. Therefore, the positional deviation between the lock and the latch does not occur, 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 is always attached in a direction to enter the table from the opening at the side end of the table. When the table is closed, a component force always acts in the tangential direction with respect to the 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 enables the table to be opened only by removing from the opening can reduce the manufacturing cost.

  According to the fourth aspect of the present invention, the lower end portion of the reinforcement is engaged and supported by the main garnish by the claw portion, and the upper end portion of the reinforcement is suspended from the lower end portion of the upper garnish. Since it is engaged and supported by the hooking member, the position of the reinforcement with respect to the main garnish is determined, and the position of the upper garnish with respect to the reinforcement is determined, so that the positioning work is simple and accurate. If it is fastened and supported between the upper garnish and the upper garnish, it is fixed and no displacement occurs. Next, both side portions of the reinforcement are fastened and supported by the side garnish, thereby determining the position of the side garnish with respect to the reinforcement. Thus, the dimensional accuracy with respect to the seat back is remarkably improved.

  The upper garnish, the side garnish, and the main garnish are fixed to the periphery of a piece of rain force for the purpose of providing a garnish molding with high positioning accuracy to the seat back and capable of significantly reducing manufacturing costs. Realized by becoming.

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

  The rear upper RR surface of the upper back of the seat back 3 of the front seat 1, that is, the back surface 3b, is in a closed state indicated by a solid line along the back surface 3b and a substantially horizontal fully open state indicated by a two-dot chain line. A table 14 that is rotatably supported around a hinge (not shown) 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. Thus, the latch 10 disposed on the seat back 3 and a biasing means (not shown) wound around a hinge so as to constantly bias the table 14 in the opening direction are provided. Garnish moldings 11 that cover the back surface 3 b of the seat back 3 are disposed on the left and right and lower LWO of the table 14.

  The table 14 is embedded in the recess 12 of the garnish molding 11 disposed on the back surface 3b of the seat back 3 in the closed state and is flush with the garnish molding 11, and when opened, such as a camera. Can be placed. In the table 14, a lock 16 is provided on the latch 10 so that the front end 16 a can be engaged and disengaged. The lock 16 can be operated by a connecting means (not shown) in a direction to be released from the latch 10 by an operating means (not shown) supported by the table 14. The front end portion 16 a of the lock 16 does not protrude from the side end portion 14 a of the table 14. The latch 10 can be engaged in the opening 18 of the side end portion 14 a 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 the garnish molding 11 fixed to the back surface 3b of the seat back 3 by a pin 20 and always has a side end 14a of the table 14. It is urged by the coil spring 22 in the direction of entering the table 14 from the opening 18 (counterclockwise in FIG. 5). The coil spring 22 is suspended between a bracket 24 projecting from the main garnish 15 of the garnish molding 11 and the end 10a of the latch 10, and always pulls the end 10a of the latch 10.

  When the table 14 is closed, a component force is always applied in a tangential direction 26 with respect to a straight line 25 connecting the contact position between the opening 18 of the side end portion 14 a of the table 14 and the engaging portion 19 of the latch 10 and the pin 20. It works.

  The garnish molding 11 includes an upper garnish 13 along the top 3a of the seat back 3, a side garnish 17 along the side 3c of the seat back 3, and a main garnish disposed on the back surface 3b of the seat back 3. The upper garnish 13, the side garnish 17, and the main garnish 15 are fixed around the periphery of one of the reinforcements 30 by a method described later.

  On both side portions 15 a of the main garnish 15, recesses 12 that can store the table 14 that can be tilted backward are formed, and latches 10 that hold the closed state of the table 14 on the wall surfaces 12 a of the recesses 12 are pins. 20, both side portions 30 a of the reinforcement 30 are arranged along the outer surface of the wall surface 15 a of the recess 15.

  A lower end portion 30 b of the reinforcement 30 is engaged and supported by the main garnish 15 by a claw portion 31, and an upper end portion 30 c of the reinforcement 30 is a hook member suspended from the lower end portion 13 a of the upper garnish 13. The both sides 30a of the reinforcement 30 are fastened and supported to the side garnish 17 by screws 33.

  Reference numeral 34 denotes a bumper rubber that is softly received on the side of the main garnish 15 when the table 14 is fully closed. Reference numeral 35 denotes an opening formed in the lower LWO of the seat back 3, and the opening 35 is always closed to function as the seat back 3 (such as holding the lumbar vertebrae of the occupant), and if necessary As shown by a two-dot chain line in FIG. 1, a relaxed seat 36 that holds the lower limb of an occupant seated on the rear seat 7 together with the opening 35 by rotating to the rear RR is housed. The axis of rotation of the relaxing seat 36 is shared with the central axis 5. Reference numeral 37 is a switch disposed on the side surface of the seat back 3 on the driver's seat side, reference numeral 38 is a switch disposed on the side surface of the seat cushion 2, and reference numeral 39 is a seat back 9 on the rear seat 7. A switch disposed on an armrest 40 that is rotatably supported by a pin 41. When the switches 37, 38, and 39 are turned on, the headrest 4 of the front seat 1 falls to the front FR and the front seat. 1 itself can move to the front side FR. Reference numeral 42 denotes a garnish that is fixed to the main garnish 15 with screws 33 and is suspended from a support portion mounting opening 43 (not shown) of the table 14. A reinforcing member 44 of the side garnish 17 is fastened with a screw 33 below the support portion mounting opening 43. Reference numeral 45 is a boss in which a prepared hole of the screw 33 for fixing the reinforcing member 44 is formed.

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

  The garnish molding 11 includes an upper garnish 13 along the top 3a of the seat back 3, a side garnish 17 along the side 3c of the seat back 3, and a main garnish disposed on the back surface 3b of the seat back 3. 15, and the upper garnish 13, the side garnish 17, and the main garnish 15 are fixed around the periphery of one of the reinforcements 30. 30 becomes a reference for alignment, and the alignment accuracy to the seat back 3 is increased. In addition, since the molding die for the garnish molding 11 can be a small molding die, the manufacturing cost can be significantly reduced.

  Further, on both side portions 15a of the main garnish 15, there are formed recesses 12 for storing the table 14 that can be tilted backward, and a latch 10 that holds the closed state of the table 14 on the wall surface 12a of the recess 12 is pivoted. Since both sides 30a of the reinforcement 30 are along the outer surface of the wall surface 12a of the recess 12, even if the latch 10 is pushed by the lock 16, the pivotal support position of the latch 10 is the reinforcement. 30 is protected by both side portions 30a, and the positional displacement between the lock 16 and the latch 10 does not occur, and the lock 16 is not hindered.

  Further, the latch 10 is pivotally supported by the pin 20 so as to be rotatable in the left-right direction with respect to the seat back 3 and is always urged in the direction of entering the table 14 from the opening 18 of the side end portion 14 a of the table 14. When the table 14 is closed, the component force is always applied in the tangential direction 26 with respect to the straight line 25 connecting the contact position between the opening 18 of the side end portion 14a of the table 14 and the engaging portion 19 of the latch 10 and the pin 20. By acting, it is possible to have a simple configuration in which the table 14 can be opened only by removing the latch 10 from the opening 18, and the manufacturing cost can be reduced.

  Further, the lower end portion 30 b of the reinforcement 30 is engaged and supported by the main garnish 15 by the claw portion 31, and the upper end portion 30 c of the reinforcement 30 is hooked from the lower end portion 13 a of the upper garnish 13. Since it is engaged and supported by the member 32, the position of the reinforcement 30 with respect to the main garnish 15 is determined, and the position of the upper garnish 13 with respect to the reinforcement 30 is determined, so that the positioning operation is simple and accurate. If it is fastened and supported between the reinforce 30 and the upper garnish 13 in this state, it is permanently fixed and no displacement occurs. Next, both side portions 30 a of the reinforcement 30 are fastened and supported by the side garnish 17, so that the position of the side garnish 17 with respect to the reinforcement 30 is determined. Thus, the dimensional accuracy with respect to the seat back 3 is significantly improved.

  The seat back 3 is supported in a closed state along the back surface 3b of the seat back 3 and a substantially horizontal fully opened state so as to be rotatable around a hinge disposed on the lower LWO and fully opened. Since the table 14 that can be slid back and forth in the state is provided, the height of the table 14 in use is appropriate for the occupant sitting on the seat cushion 8 of the rear seat 7, and the table 14 By sliding to RR, it can move to the front side of the passenger, 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 operation means operable to release the lock 16 from the latch 10. The portion 16a does not protrude from the opening 18 of the side end portion 14a of the table 14, and the latch 10 can be engaged in the opening 18 of the side end portion 14a of the table 14, so that the table 14 is always opened in the opened state. Since the engaging means such as the latch 10 and the lock 16 that hold the table 14 in the closed state do not touch the sight of the occupant, the merchantability is significantly improved.

  Further, the latch 10 is engaged in the opening 18 of the side end portion 14 a of the table 14, so that the closed state of the table 14 is ensured, and a delta-shaped engagement is established between the distal end portion 16 a of the lock 16 and the latch 10. By forming the joint portion 19, when the latch 10 is pushed by the lock 16, the closed state is released, and the lock 16 is not hindered.

  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 in a direction to enter the table 14 from the opening 18 of the side end portion 14a of the table 14. When the table 14 is closed, it 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 portion 14a of the table 14 and the engaging portion 19 of the latch 10 and the pin 20. Since the force is always applied, a simple configuration that enables the table 14 to be opened only by releasing the latch 10 from the opening 18 is possible, and the manufacturing cost can be reduced.

  Since the latch 10 is supported in advance by a garnish molding 11 fixed to the back surface 3b of the seat back 3, the positioning of the latch 10 is integrated with the unitized garnish molding 11, 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 front view of the garnish molding of FIG. The side view of FIG. Sectional drawing along the SA-SA line of FIG. Sectional drawing along the SB-SB line | wire of FIG. The expanded sectional view along the SC-SC line of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Vehicle seat 2 Seat cushion 3 Seat back 3a Seat back top 3b Seat back back 3c Seat back side 10 Latch 11 Garnish molding 12 Recess 12a Recess wall 13 Upper garnish 14 Table 14a Table end 15 Main Garnish 16 Lock 17 Side garnish 18 Opening 19 Engagement part 20 Pin 25 Straight line 26 Tangential line 30 Reinforce 30a Reinforce end both ends 30b Reinforce lower end 30c Reinforce upper end 31 Claw part 32 Hooking member

Claims (4)

A seat cushion, a seat back supported by the seat cushion, and a garnish molding supported by the back of the seat back;
The garnish molding is composed of an upper garnish along the top of the seat back, a side garnish along the side of the seat back, and a main garnish arranged on the back of the seat back,
A vehicle seat characterized in that the upper garnish, the side garnish, and the main garnish are fixed around a single reinforcement. The vehicle seat according to claim 1,
On both side portions of the main garnish, a recess that can store the table that can be tilted backward is formed, and a latch that holds the closed state of the table is pivotally supported on the wall surface of the recess,
The vehicle seat according to claim 2, wherein both sides of the reinforcement are arranged along an outer surface of the wall surface of the recess. The vehicle seat according to claim 2,
The latch is pivotally supported by pins so as to be rotatable in the left-right direction with respect to both side portions of the main garnish and is always urged in a direction of entering the table from the opening of the side end portion of the table,
A vehicle seat, wherein the table is supported by a lock capable of releasing the latch. A vehicle seat according to any one of claims 1 to 3,
The lower end of the reinforcement is engaged and supported by a claw on the main garnish,
The upper end portion of the reinforcement is engaged and supported by a hook member suspended from the lower end portion of the upper garnish, and is fastened and supported.
A vehicle seat characterized in that both sides of the reinforcement are fastened and supported by the side garnish.