JP4557199B2 - Vehicle seat - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to a vehicle seat.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, a configuration in which both a seat seat and a backrest seat are rotatably provided is known.
[0003]
[Problems to be solved by the invention]
The known example has a problem in that there are various problems because the rotation centers of the seat seat and the back seat are separately located in a side view.
That is, since only two reclining devices are provided, there is a problem that a step is generated even in the full flat mode in which the seat seat and the backrest seat are flattened.
Thus, if the frame configuration is devised, the above problem can be solved by securing a mounting space.
[0004]
OBJECT OF THE INVENTION
Secure installation space, make effective use of space, increase seat arrangement, and improve usability.
[0005]
[Means for Solving the Problems]
The present invention relates to a base frame 8 attached to a moving rail 6 of a slide rail 4 provided on a vehicle body, and a seat seat attached to the base frame 8 via a seat locking device 23 and a reclining device 40 so as to be rotatable. 2, and the base frame 8 is provided outside the seat mounting frame 11 for mounting the pair of left and right seat skeleton frames 15. The seat locking device 23 is provided between the seat skeleton frame 15 and the seat mounting frame 11, and the reclining device 40 is provided between the back skeleton frame 36 and the back mounting frame 12. The vehicle seat is provided such that the center of rotation is substantially the same in the side view.
The present invention relates to a base frame 8 attached to a moving rail 6 of a slide rail 4 provided on a vehicle body, and a seat seat attached to the base frame 8 via a seat locking device 23 and a reclining device 40 so as to be rotatable. 2, and the base frame 8 is provided outside the seat mounting frame 11 for mounting the pair of left and right seat skeleton frames 15. 36 is provided, and the left and right side portions of the rear portion of the seat frame 15 of the seat seat 2 are spaced inward from the left and right portions of the back frame frame 36 of the back seat 3 by a predetermined distance. The seat locking device 23 is attached to the seat mounting frame 11 via the seat locking device 23, and the seat locking device 23 and the reclining Rotation center of the device 40 is obtained by a vehicle seat which is disposed side view same.
In the present invention, the left and right rear portions of the seat skeleton frame 15 are positioned narrower than the left and right side portions of the dorsal skeleton frame 36 with a predetermined interval therebetween, and the seat locking device 23 is disposed on the seat skeleton frame 15. The reclining device 40 is a vehicle seat provided outside the dorsal skeleton frame 36.
[0006]
【Example】
An embodiment of the present invention will be described with reference to the drawings. Reference numeral 1 denotes a vehicle seat 1, and the vehicle seat 1 is configured so that it can be seated either forward or backward in the vehicle traveling direction. Therefore, if it is the normal vehicle seat 1, it comprises the seat seat 2 and the dorsal seat 3, but the vehicle seat 1 of the present application is a relationship between the seat seat 2 and the dorsal seat 3 when it is a forward facing vehicle seat 1. Thus, in the vehicle seat 1 facing backward, the relationship between the seat seat 2 and the backrest seat 3 is reversed. However, in order to facilitate understanding, the basic name, description, and direction are based on the forward-facing vehicle seat 1 unless otherwise specified.
Thus, the vehicle seat 1 is provided on the vehicle body via the slide rail 4 so as to be movable back and forth. The structure of the slide rail 4 is well known, and the upper rail 6 is slidably fitted to the lower rail 5 fixed to the vehicle body, and although not shown, the movement of the vehicle seat 1 is fixed at a desired position by a lock device.
[0007]
Reference numeral 7 denotes a rail side mounting member 7 provided on the upper rail 6, and a rail mounting frame 9 of a base frame 8 for moving the vehicle seat 1 back and forth is fixed to the rail side mounting member 7. A pair of left and right rail mounting frames 9 are provided by front and rear members, and the front and rear portions of the rail mounting frame 9 are fixed to the base front and rear frame 10. The base front and rear frames 10 on the outer sides of the left and right rail mounting frames 9 are each provided with a seat mounting frame 11 in the front-rear direction, and the back mounting frames 12 are respectively provided on the outer sides of the seat mounting frame 11.
Accordingly, the base frame 8 is formed in a square frame shape similar to a ladder in plan view by a base front and rear frame 10 in the left and right direction, a seat mounting frame 11 and a back mounting frame 12 in the front and rear direction.
The seat frame 15 of the seat 2 is configured by connecting at least a front seat frame 16 and a rear seat frame 17 by left and right seat side frames 18.
[0008]
In this case, the front frame 16 is narrower than the rear frame 17, and the rear end 19 of the seat side frame 18 is fixed to the front frame 16. The intermediate inclined portion 20 located on the outer side is continuously provided as it reaches the front side in plan view, and the front side of the intermediate inclined portion 20 is formed so as to continue to the front side portion 21 in the front-rear direction. In the embodiment, the front end of the front side portion 21 of the seat side frame 18 is connected to the rear seat frame 17 to integrally form the both.
Between the seat frame 15 and the base frame 8, a seat locking device 23 for holding the seat 2 in an upright state is provided.
A base bracket 24 is fixed to the seat mounting frame 11 of the base frame 8, and a seat bracket 25 is attached to the base bracket 24 by a seat rotation shaft 26 so as to be rotatable between a horizontal seat posture and a standing posture. The seat locking device 23 is provided on the seat rotation shaft 26.
[0009]
Accordingly, the seat skeleton frame 15 pivots upward about the seat pivot shaft 26, whereby the seat 2 rises with respect to the slide rail 4, and the seat 2 and the backrest 3 stand up. This is a so-called storage mode in which the front and rear width of the sheet 1 is narrowed.
The structure of the seat locking device 23 is arbitrary, and a sector gear 28 having an engagement groove 27 arranged in an arc shape around the seat rotation shaft 26 is fixed to the seat bracket 25, and the lock gear engaged with the sector gear 28 is secured. 29 may be provided on the base bracket 24, and the lock gear 29 may be connected to and disconnected from the seat operation lever 30 to switch between locking and unlocking, and the configuration is not a requirement.
29a is a lock gear pin that protrudes laterally provided on the lock gear 29, 31 is an operation plate having a cam hole 31a with which the lock gear pin 29a is engaged, 31b is a mounting shaft for the operation plate, and 31c is a plate provided on the operation plate Pins 32 are long holes provided in the seat operation lever 30, and the plate pins 31 c are engaged with the long holes 32. Reference numeral 33 denotes a cam body that presses the lock gear 29 provided on the shaft 31b in the engaging direction, reference numeral 34 denotes an interlocking pin between the cam body 33 and the operation plate 31, and reference numeral 35 denotes a spring that biases in the locking direction.
[0010]
The dorsal skeleton frame 36 of the dorsal seat 3 is constituted by connecting at least the dorsal upper frame 37 and the dorsal lower frame 38 by the dorsal side frame 39, and the dorsal upper frame 37. The lower back frame 38 is formed to have substantially the same width as the left and right widths of the front side portion 21 of the seat side frame 18 of the seat skeleton frame 15 and is formed in a square frame shape in front view.
A reclining device 40 for adjusting the inclination angle of the dorsal seat 3 is provided between the dorsal skeleton frame 36 and the base frame 8.
A base bracket 41 is fixed to the outer surface of the dowel mounting frame 12 of the base frame 8, and an intermediate bracket 43 provided on the dorsal skeleton frame 36 side by a reclining rotation center shaft 42 is rotatably provided on the base bracket 41. A reclining device 40 is provided on the reclining rotation center shaft 42.
Accordingly, the reclining device 40 adjusts the inclination angle of the dorsal seat 3 around the reclining rotation center axis 42, and the back seat 3 in the normal seating state C (FIG. 8) can be pivoted backward to a substantially horizontal state. By configuring the backrest seat 3 in the rear horizontal state, both the seat seat 2 and the backrest seat 3 become a so-called full flat mode F.
[0011]
In this case, the left and right widths of the left and right sides of the rear part of the seat skeleton frame 15 (the rear side part 19 of the seat side frame 18) are narrowed to form a gap with respect to the dorsal side frame 39 of the dorsal skeleton frame 36. Since the base frame 8 has the seat mounting frame 11 and the backrest mounting frame 12 juxtaposed in the left-right direction with respect to the rail mounting frame 9, the seat locking device 23 and the reclining device 40 are provided. The seating seat 2 and the backrest seat 3 can be arranged so that the rotation centers thereof are substantially concentric.
Thereby, when it is set as the full flat mode F which makes the seat seat 2 and the backrest seat 3 flat, the level | step difference between the seat seat 2 and the backrest seat 3 is eliminated or reduced.
That is, when the reclining device 40 is provided alone, it is possible to arrange the reclining rotation center shaft 42 of the backrest seat 3 behind the seat seat 2 and make the seat seat 2 and the backrest seat 3 flat. However, in order to make the seat 2 stand up by the seat rotation shaft 26, two of the seat locking device 23 and the reclining device 40 are necessary, and the seat seat 2 and the backrest seat 3 are not stepped. What is impossible to flatten is that the full flat mode F without a step and the standing mode (S) of the seat 2 are compatible.
[0012]
Thus, the back bracket 46 is attached to the intermediate bracket 43 via a back lock device 45 that allows the back seat 3 to be moved forward about the intermediate rotation center shaft 44 and used as a table. The heel bracket 46 is fixed to an intermediate position between the upper and lower sides of the dorsal skeleton frame 36.
Accordingly, when the backrest bracket 46 is rotated about the intermediate rotation center shaft 44 by the backrest locking device 45 while the seat seat 2 is in the normal sitting state, the rear surface of the backrest seat 3 is moved with respect to the seat seat 2. When the table mode T to be used as a so-called table is set in a substantially parallel state, and the intermediate bracket 43 and the dorsal bracket 46 are integrally rotated about the reclining rotation center axis 42 by the reclining device 40 in the front-rear direction,傾斜 Adjust the inclination angle of the sheet 3.
Thus, the seat locking device 23, the reclining device 40, and the dorsal locking device 45 can be operated in combination to enable various seat arrangements, which will be described below.
[0013]
The dorsal seat 3 is pivoted rearward about the reclining pivot center axis 42 in a horizontal state once to a full flat mode F, and then centered on the middle pivot center axis 44 of the dorsal lock device 45. When the dorsal seat 3 (the dowel bracket 46) is erected and then the seat 2 is erected at the center of the seat rotation shaft 26, the storage mode S in which the seat 2 and the upper part of the dorsal seat 3 are erected. (The standing operation of the seat 2 may be performed first).
Further, when the seat back 2 is raised by the seat locking device 23 in this state once the dorsal seat 3 is pivoted backward about the reclining pivot center shaft 42 to once enter the full flat mode F, the seat as described above. When the relationship between the seat 2 and the back seat 3 is reversed and the rearward mode B is established, and another forward vehicle seat 1 is provided behind the rearward vehicle seat 1, the rearward vehicle seat 1 and the forward vehicle are provided. The face-to-face mode B ′ with the sheet 1 is set.
[0014]
Thus, the reclining device 40 and the dorsal lock device 45 can be configured arbitrarily. For example, the reclining device 40 attaches the intermediate bracket 43 to the base bracket 41 so as to be rotatable by the reclining rotation central shaft 42. The sector gear 52 having the arcuate engagement groove 51 centered on the reclining rotation center shaft 42 is fixed to the intermediate bracket 43, and the lock gear 53 connected to and disengaged from the sector gear 52 is rotatable to the base bracket 41 by the shaft 54. The lock gear 53 is provided with a lock gear pin 55 projecting sideways, the lock gear pin 55 is engaged with a cam hole 57 formed on the cam surface of the operation plate 56, and the operation plate 56 is a shaft. 58 is attached to the base bracket 41, and a plate pin 59 is projected to the side of the operation plate 56. The plate pin 59 is engaged with a long hole 61 of a tilt operation lever 60 provided rotatably on the reclining rotation center shaft 42, and the lock gear 53 is attached to the shaft 58 to which the base portion of the operation plate 56 is attached. A reclining device 40 is configured by attaching a cam body 62 to be pressed in the engaging direction and providing an interlocking pin 63 between the cam body 62 and the operation plate 56 so as to interlock both. A spring 64 biases the tilt operation lever 60 in the lock (operation) direction.
[0015]
Further, the dorsal hook locking device 45 is configured such that the dorsal bracket 46 is rotatably attached to the intermediate bracket 43 by the rotation shaft intermediate rotation center shaft 44 and is arcuately formed around the intermediate rotation center shaft 44. A sector gear 67 having one groove 65 and a second groove 66 is fixed to the intermediate bracket 43, and a lock gear 68 that is connected to and detached from the first groove 65 and the second groove 66 is rotatably attached to the back bracket 46 by a shaft 69. The lock gear 68 is provided with a lock gear pin 70 protruding laterally. The lock gear pin 70 is engaged with a cam surface formed on an inner peripheral surface of a cam hole 72 provided in the operation plate 71, and the operation plate 71 is connected to a shaft 73. The cam body 74 is attached to the shaft 73 by pressing the lock gear 68 in the engaging direction, and an interlocking pin 75 is provided between the cam body 74 and the operation plate 71. The mounting member 92 is fixed to the operation plate 71, the mounting member 92 is bent and positioned on the side of the shaft 73, and the mounting member 92 that overlaps the shaft 73 has a mounting shaft. 93 is provided, and the upper operation lever 94 is attached to the mounting shaft 93. Reference numeral 76 denotes a spring provided between the operation plate 71 and the fixed portion, and biases the lock gear 68 in the engagement direction by biasing the upper operation lever 94 in the lock operation direction.
[0016]
In the backrest locking device 45 (backrest bracket 46) of the embodiment, the lower portion of the sector gear 67 is fixed to the intermediate bracket 43, and the backrest bracket 46 can be rotated by the intermediate rotation central shaft 44 to the sector gear 67. It is installed.
The reclining device 40 and the dorsal lock device 45 can be operated independently by the tilt operation lever 60 and the upper operation lever 94. However, in a predetermined case, the operation restriction means 80 for restricting the operation is provided. Provided between the reclining device 40 and the dorsal lock device 45.
The operation restricting means 80 is configured to restrict the operation of the reclining device 40 when the dorsal seat 3 is tilted about the intermediate rotation center shaft 44 by the dorsal lock device 45.
In the seat arrangement, when the storage mode S is selected, the dorsal seat 3 is erected from the full flat mode F, and then the seat seat 2 is erected. If the reclining device 40 is operated while standing up about the center shaft 44, the entire dorsal seat 3 is strongly rotated forward about the center of the reclining rotation center shaft 42, and this is restricted by the operation restricting means 80. .
[0017]
Similarly, the operation restriction means 80 restricts the operation of trying to rotate the dorsal seat 3 backward by the reclining device 40 from the state of the table mode T.
That is, although not shown in the drawings, the reclining device 40 is provided with a spiral spring that always rotates the back sheet 3 forward, and the elasticity of this spiral spring is predetermined enough to raise the back sheet 3 in the full flat mode F. Although strength is required, in the state where the dorsal seat 3 is tilted about the center rotation center shaft 44, the elasticity of the spiral spring is strongly applied as soon as the radial distance from the center of the reclining rotation center shaft 42 is short. So this is prevented.
The operation restricting means 80 of the embodiment is provided with an operation blocking body 83 on the tilt operation lever 60, and the rotation blocking moving in and out in the crossing direction with respect to the movement line of the operation blocking body 83 with the reclining rotation center axis 42 as the center. A body 84 is rotatably provided by a shaft 85, and one end of the inner member 87 of the operation transmitting member 86 is locked to the rotation blocking body 84, and the other end of the inner member 87 is locked to the dorsal bracket 46 side. Then, one end of the outer member 88 of the operation transmitting member 86 is locked to the base bracket 41, and the other end of the outer member 88 is locked to the intermediate bracket 43 side.
[0018]
The rotation blocking body 84 is formed by forming an engagement surface 90 with which the operation blocking body 83 abuts and engages, and a side farther from the shaft 85 of the engagement surface 90 is a movement line of the operation blocking body 83. The operation blocking body 83 and the rotation blocking body 84 are prevented from being mechanically locked by being positioned further back.
Reference numeral 91 denotes a spring that urges the rotation preventing body 84 to retract.
In addition, FIG. 1 shows the outline of arrangement | positioning and is not limited to this. Further, the seat locking device 23, the reclining device 40, and the dorsal lock device 45 are names for avoiding confusion for convenience of explanation, and in particular, the seat locking device 23 is a backward mode B. In this case, the reclining device can adjust the tilt angle, and the configuration is not limited by these names.
[0019]
[Action]
Next, the operation will be described.
A base frame 8 is attached to the upper rail 6 on the moving side of the slide rail 4 provided on the vehicle body, and the seat seat 2 and the backrest seat 3 are attached to the base frame 8 via a seat locking device 23 and a reclining device 40, respectively. Therefore, when the back sheet 3 is rotated backward in the horizontal state, the full flat mode F is set.
Further, when the seat 2 is raised by the seat locking device 23, the storage mode S in which the front-rear width of the vehicle seat 1 is reduced is possible.
In this case, the vehicle seat 1 has a seat frame 2 of the seat seat 2 and a dorsal frame frame 36 of the dorsal seat 3 attached to the slide rail 4 via the base frame 8, and the base frame 8 is a pair of left and right seat seats. A seat mounting frame 11 for mounting the two seat frame 15 and a back mounting frame 12 for mounting the dorsal frame frame 36 of the dorsal seat 3 outside the seat mounting frame 11. The left and right rear portions of the seat skeleton frame 15 are formed to have a width located on the inner side at a predetermined distance from the left and right side portions of the dorsal skeleton frame 36 of the dorsal seat 3. Since the seat locking device 23 is provided between the rear portion and the left and right side portions of the dorsal skeleton frame 36 of the dorsal seat 3, the seat locking device 23 and the reclining unit are provided. Rotation center of the device 40 is arranged in a side view substantially concentric.
[0020]
Therefore, when the full flat mode F in which the seat 2 and the back sheet 3 are flattened is set, the level difference between the seat 2 and the back sheet 3 is eliminated or reduced.
That is, by adopting the frame configuration of the seat seat 2, the backrest seat 3 and the base frame 8, the seat locking device 23 for setting the seating seat 2 in the standing mode S, and the inclination adjustment of the backrest seat 3. Further, the reclining device 40 for flattening is provided substantially concentrically so that the full flat mode F and the storage mode S without any step are compatible.
Further, the base frame 8 is provided with a pair of left and right rail mounting frames 9 on the center side, a seat mounting frame 11 on the outside of the rail mounting frame 9, and a backrest mounting frame 12 on the outside thereof. It is sufficient to attach the narrow portions at the left and right rear portions of the seat skeleton frame 15 of the seat seat 2 to the base frame 8, and a rational configuration is obtained.
[0021]
That is, the left and right side portions of the back seat 3 are important for securing the holdability of the vehicle seat 1, but the rear left and right sides of the seat seat 2 do not affect the cushioning so much, and the seat lock is attached to this portion. By providing the device 23, a mounting space is reasonably secured, and the full flat mode F and the storage mode S without any step are made compatible.
Thus, the reclining device 40 for adjusting the inclination of the dorsal seat 3 is attached to the base frame 8 by the base bracket 41. The reclining device 40 is provided with an intermediate bracket 43, and the intermediate bracket 43 is provided with a dorsal lock device 45. The dorsal bracket 46 is attached, and the upper and lower middle portions and the lower side of the dorsal skeleton frame 36 are fixed to the dorsal bracket 46. Therefore, the seat locking device 23, the reclining device 40, and the dorsal locking device 45 are used. Various seat arrangements are possible, and when the dorsal seat 3 is rotated forward from the normally seated vehicle seat 1 around the center pivot center shaft 44 of the dorsal lock device 45, the seat seat 2 can be rotated. Table mode used as a so-called table with the upper surface of the dorsal seat 3 (the rear surface before being tilted) in a substantially parallel state. To become.
[0022]
In this case, since the backrest locking device 45 is provided above the seat locking device 23, the center pivot center axis 44 of the backrest seat 3 is located above the upper surface of the seat seat 2, and the backrest seat 3 avoids interference between the lower part of the seat 3 and the upper surface of the seat 2 and the dorsal seat 3 is in a substantially horizontal state to improve the usability as a table.
Further, when the back seat 3 is pivoted backward about the reclining pivot center axis 42 and the seat seat 2 is raised by the seat locking device 23, the relationship between the seat seat 2 and the back seat 3 is reversed and the rearward mode is set. B.
In this case, as described above, since the seat locking device 23 and the reclining device 40 are arranged so that the rotational centers of the seat seat 2 and the backrest seat 3 are concentric, the seat seat 2 that has become the backrest. Has a sufficient height that can support the back of the seated person, and conversely, the dorsal seat 3 serving as the seat has an appropriate length that does not interfere with the legs of the seated person.
[0023]
That is, when the reclining device 40 is high as usual in the center of rotation of the seat 2 and the backrest 3, the seat 2 is low and the back 3 is too long, but this is solved.
Further, when another forward-facing vehicle seat 1 is provided behind the rearward-facing vehicle seat 1, the facing mode B ′ between the rearward-facing vehicle seat 1 and the forward-facing vehicle seat 1 is established. Since it does not become long, the space | interval with the forward vehicle seat 1 can be widened, and the usability of the facing mode B ′ is improved.
[0024]
Thus, the reclining device 40 is a sector having an intermediate bracket 43 rotatably attached to a base bracket 41 by a reclining rotation center shaft 42 and having an arcuate engagement groove 51 centered on the reclining rotation center shaft 42. The gear sector gear 52 is fixed to the intermediate bracket 43, a lock gear 53 that is connected to and disconnected from the sector gear 52 is rotatably attached to the base bracket 41 by a shaft 54, and the lock gear 53 is provided with a lock gear pin 55 that protrudes sideways. The lock gear pin 55 is engaged with a cam hole 57 formed on the cam surface on the inner peripheral surface of the operation plate 56, the operation plate 56 is attached to the base bracket 41 by a shaft 58, and the plate pin 59 is laterally attached to the operation plate 56. The plate pin 59 is rotatably provided on the reclining rotation center shaft 42. A cam body 62 that presses the lock gear 53 in the engaging direction is attached to a shaft 58 that is engaged with the elongated hole 61 of the inclined operation lever 60 and to which the base portion of the operation plate 56 is attached. Since an interlocking pin 63 is provided between them and the two are interlocked, when the tilt operation lever 60 is operated, the plate pin 59 rotates around the shaft 58 in the counterclockwise direction in FIG. Rotates about the shaft 58 in the counterclockwise direction in the drawing, the interlocking pin 63 of the operation plate 56 disengages the cam body 62 from the lock gear 53, and the cam hole 57 of the operation plate 56 passes through the lock gear pin 55 with a slight delay. Then, the lock gear 53 is rotated about the shaft 54 and separated by the sector gear 52 to be unlocked.
[0025]
When the reclining device 40 is unlocked, the spiral spring (not shown) urges the dorsal seat 3 in the forward direction, but can be rotated in the front-rear direction so that the inclination angle can be adjusted or the rearward rotation can be performed. When the tilt operation lever 60 is released at a desired position, the tilt operation lever 60 moves the plate pin 59, and the plate pin 59 rotates the operation plate 56. As a result, the lock gear 53 is moved to the sector gear 52. The cam body 62 maintains the engaged state of the lock gear 53.
The dorsal hook locking device 45 has a dorsal bracket 46 attached to the intermediate bracket 43 so as to be rotatable by an intermediate rotation center shaft 44, and a first groove 65 and an arc shape centering on the intermediate rotation center shaft 44. A sector gear 67 having a second groove 66 is fixed to the intermediate bracket 43, and a lock gear 68 that is connected to and detached from the first groove 65 and the second groove 66 is rotatably attached to the back bracket 46 by a shaft 69. A lock gear pin 70 projecting sideways is provided. The lock gear pin 70 is engaged with a cam hole 72 formed on the cam surface of the inner peripheral surface of the operation plate 71, and the operation plate 71 is attached to the back bracket 46 by a shaft 73. A cam body 74 that presses the lock gear 68 in the engaging direction is attached to the shaft 73, and an interlocking pin 75 is provided between the cam body 74 and the operation plate 71 to interlock the two. Since the upper operation lever 94 is attached to the operation plate 71, when the upper operation lever 94 is operated, the interlocking pin 75 rotates around the shaft 73 in the counterclockwise direction in the figure, and the cam body 74 is pivoted. The cam hole 72 of the operation plate 71 turns the lock gear 68 around the shaft 69 via the lock gear pin 70 with a slight delay, and turns counterclockwise in the figure around the center 73 to the back. In this state, the backrest seat 3 is free to tilt forward.
[0026]
When the dorsal seat 3 is tilted forward about the intermediate rotation center shaft 44 to a predetermined position, the lock gear 68 is engaged with the second groove 66 of the sector gear 67 by the elasticity of the spring 76 and locked in the table mode T.
Similarly, when the upper operation lever 94 is operated against the elasticity of the spring 76 to release the lock gear 68 from the second groove 66, the dorsal seat 3 becomes rotatable and the dorsal seat 3 is returned to its original state. Returning to, the elastic force of the spring 76 causes the lock gear 68 to engage with the first groove 65 of the sector gear 67 to hold the back sheet 3 in the normal state.
The reclining device 40 and the dorsal lock device 45 can be operated independently by the tilt operation lever 60 and the upper operation lever 94, but the dorsal seat 3 is in a fallen state by the dorsal lock device 45. Since the operation regulating means 80 for regulating the operation of the reclining device 40 is provided, the reclining device 40 is operated when the dorsal seat 3 is in a fallen state (when returning from the storage mode S in the seat arrangement to the normal state). However, the reclining device 40 is not unlocked, and prevents the fallen back seat 3 from returning.
[0027]
In other words, only the dorsal seat 3 in which the intermediate bracket 43 and the dorsal bracket 46 are linear is prevented by preventing forward rotation of the lying dorsal seat 3 with a short radial distance from the reclining pivot center shaft 42. Is raised.
The operation restricting means 80 is provided with a pin-shaped operation blocking body 83 projecting inwardly on the tilt operation lever 60, and the rotation blocking body entering and exiting the movement line of the operation blocking body 83 around the reclining rotation center axis 42. 84 is rotatably provided by a shaft 85, one end of the operation transmission member 86 is locked to the rotation blocking body 84, and the other end of the operation transmission member 86 is locked to the dorsal bracket 46 side. When the dorsal seat 3 is tilted, the operation transmitting member 86 pulls the rotation preventing body 84 against the elasticity of the spring 91, and the rotation preventing body 84 rotates about the shaft 85 to the operation blocking body 83. Engage.
Therefore, when the operation blocking body 83 and the rotation blocking body 84 are engaged, the operation of the tilt operation lever 60 in the unlocking direction is disabled, and an inadvertent unlocking operation is prevented.
[0028]
In this case, the operation blocking body 83 is provided in the lower portion of the tilt operation lever 60, and the shaft 85 that is the rotation center of the rotation blocking body 84 is positioned below the operation block 83 to rotate the tilt operation lever 60. Since the rotation blocking body 84 is arranged so as to rotate in a direction crossing the direction, the rotation blocking body 84 is retracted by the force that the operation blocking body 83 moves about the reclining rotation center axis 42. The operation of the tilt operation lever 60 is reliably prevented without being moved to.
In the embodiment, since the operation transmission member 86 includes the inner member 87 and the outer member 88, the rotation blocking body 84 can be moved with a simple configuration.
[0029]
【effect】
The present invention relates to a base frame 8 attached to a moving rail 6 of a slide rail 4 provided on a vehicle body, and a seat seat attached to the base frame 8 via a seat locking device 23 and a reclining device 40 so as to be rotatable. 2, and the base frame 8 is provided outside the seat mounting frame 11 for mounting the pair of left and right seat skeleton frames 15. The seat locking device 23 is provided between the seat skeleton frame 15 and the seat mounting frame 11, and the reclining device 40 is provided between the seat skeleton frame 36 and the dowel mounting frame 12. In the full flat mode F, the vehicle seats are provided so that the rotation centers are substantially the same in side view. The step between the seat 2 and the seatback 3 was eliminated or reduced to ensure the installation space of the seat locking device 23 can be effectively utilized space.
The present invention relates to a base frame 8 attached to a moving rail 6 of a slide rail 4 provided on a vehicle body, and a seat seat attached to the base frame 8 via a seat locking device 23 and a reclining device 40 so as to be rotatable. 2, and the base frame 8 is provided outside the seat mounting frame 11 for mounting the pair of left and right seat skeleton frames 15. 36 is provided, and the left and right side portions of the rear portion of the seat frame 15 of the seat seat 2 are spaced inward from the left and right portions of the back frame frame 36 of the back seat 3 by a predetermined distance. The seat locking device 23 is attached to the seat mounting frame 11 via the seat locking device 23, and the seat locking device 23 and the reclining Since the center of rotation of the device 40 is a vehicle seat arranged in substantially the same side view, the step between the seat seat 2 and the dorsal seat 3 is eliminated or reduced in the full flat mode F, An installation space for the lock device 23 can be secured and the space can be used effectively.
In the present invention, the left and right rear portions of the seat skeleton frame 15 are positioned narrower than the left and right side portions of the dorsal skeleton frame 36 with a predetermined interval therebetween, and the seat locking device 23 is disposed on the seat skeleton frame 15. Since the reclining device 40 is a vehicle seat provided outside the dorsal skeleton frame 36, a mounting space for the seat locking device 23 is ensured. Can be used effectively.
[Brief description of the drawings]
FIG. 1 is a schematic perspective view of a frame.
FIG. 2 is a front view of the same part (the seat frame is unfolded).
FIG. 3 is a side view of a seat locking device (seat reclining device).
FIG. 4 is a side view of the same.
FIG. 5 is a side view of the reclining device and the dorsal lock device.
FIG. 6 is an exploded perspective view of the reclining device.
FIG. 7 is a partially exploded perspective view of the dorsal fin locking device.
FIG. 8 is an explanatory diagram of seat arrangement.
FIG. 9 is a side view of a full-flat mode F reclining device and a dorsal lock device.
FIG. 10 is a side view of a reclining device in table mode T and a dorsal lock device.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Vehicle seat, 2 ... Seat seat, 3 ... Backrest seat, 4 ... Slide rail, 5 ... Lower rail, 6 ... Upper rail, 7 ... Rail side mounting member, 8 ... Base frame, 9 ... Rail mounting frame, 10 Reference frame: Base frame, 11: Seat mounting frame, 12: Back mounting frame, 15: Seat frame frame, 16: Front seat frame, 17: Rear seat frame, 18 ... Seat side frame, 19 ... Rear side , 20 ... Intermediate inclined part, 21 ... Front side part, 23 ... Seat locking device, 24 ... Base bracket, 25 ... Seat bracket, 26 ... Seat rotation shaft, 27 ... Engaging groove, 28 ... Sector gear, 29 ... Lock gear 30 ... Seat control lever, 36 ... Dorsal skeleton frame, 37 ... Dorsal upper frame, 38 ... Dorsal lower frame, 39 ... Dorsal side frame, 40 ... Recliner, 41 ... Base bracket 42 ... Reclining rotation center axis, 43 ... Intermediate bracket, 44 ... Intermediate rotation center axis, 45 ... Dorsal locking device, 46 ... Dorsal bracket, 51 ... engaging groove, 52 ... Sector gear, 53 ... Lock gear, 54 ... shaft, 55 ... lock gear pin, 56 ... operation plate, 57 ... cam hole, 58 ... shaft, 59 ... plate pin, 60 ... tilting lever, 61 ... long hole, 62 ... cam body, 63 ... interlocking pin, 64 ... Spring, 65 ... First groove, 66 ... Second groove, 67 ... Sector gear, 68 ... Lock gear, 69 ... Shaft, 70 ... Lock gear pin, 71 ... Operation plate, 72 ... Cam hole, 73 ... Shaft, 74 ... Cam body, 75 ... interlocking pin, 76 ... spring, 80 ... operation restricting means, 83 ... operation blocking body, 84 ... rotation blocking body, 85 ... shaft, 86 ... operation transmitting member, 87 ... inner member, 88 ... outer member , 90 ... engagement , 89 ... rotating body, 91 ... spring, 94 ... upper operation lever.

Claims (3)

A base frame 8 attached to the moving rail 6 of the slide rail 4 provided on the vehicle body, and a seat frame of the seat 2 attached to the base frame 8 via a seat locking device 23 and a reclining device 40 so as to be rotatable. The base frame 8 includes a frame 15 and a dorsal skeleton frame 36 of the dorsal seat 3, and the base frame 8 is a back for attaching the dorsal skeleton frame 36 to the outside of the seat mounting frame 11 for attaching the pair of left and right seat skeleton frames 15. A saddle mounting frame 12 is provided, and the seat locking device 23 is interposed between the seat frame 15 and the seat mounting frame 11, and the reclining device 40 is rotated between the dorsal frame 36 and the back frame 12, respectively. A vehicle seat provided such that the moving center is substantially the same in side view. A base frame 8 attached to the moving rail 6 of the slide rail 4 provided on the vehicle body, and a seat frame of the seat 2 attached to the base frame 8 via a seat locking device 23 and a reclining device 40 so as to be rotatable. The base frame 8 includes a frame 15 and a dorsal skeleton frame 36 of the dorsal seat 3, and the base frame 8 is a back for attaching the dorsal skeleton frame 36 to the outside of the seat mounting frame 11 for attaching the pair of left and right seat skeleton frames 15. A saddle-mounting frame 12 is provided, and the left and right side portions of the rear part of the seat frame 15 of the seat seat 2 are located on the inner side at a predetermined interval from the left and right side parts of the back frame frame 36 of the back seat 3. The seat lock device 23 is attached to the seat mounting frame 11 via the seat lock device 23, and the seat lock device 23 and the reclining device 40. Turning center vehicle seat arranged side view same. 3. The seat lock device 23 according to claim 1 or 2, wherein the right and left rear portions of the seat skeleton frame 15 are positioned narrower than the left and right side portions of the dorsal skeleton frame 36 and spaced from each other at a predetermined interval. Is provided between the seat skeleton frame 15 and the dorsal skeleton frame 36, and the reclining device 40 is a vehicle seat provided outside the dorsal skeleton frame 36.

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