JP4905160B2 - Vehicle seat - Google Patents

Description

  The present invention relates to a vehicle seat. Specifically, the present invention relates to a vehicle seat including a first seat disposed on the floor of the vehicle and a second seat adjacent to the first seat in the width direction.

In general, the rear side seats arranged in the second and third rows of the vehicle have a plurality of seats arranged side by side so that a plurality of people can be seated in the row.
Here, Patent Document 1 below discloses a technique in which three seats arranged side by side in the width direction of a vehicle are slidable in the front-rear direction with respect to the floor. In this disclosure, a slide rail is individually provided between each seat and the floor, and each seat is slidable in the front-rear direction along the individual slide rail.

JP 2005-8095 A

  However, in the above-described conventional disclosed technology, since the slide rail is provided as many as the number of seats arranged side by side in the vehicle, there are many attachment parts such as rail parts installed on each seat and floor, In addition, the overall weight increases.

  The present invention has been devised as a solution to the above-described problems, and the problem to be solved by the present invention is that in a configuration in which a plurality of sheets are arranged side by side in the width direction of the vehicle, It is to reduce the number of components for enabling the seat to slide in the front-rear direction.

In order to solve the above problems, the vehicle seat of the present invention takes the following means.
A first invention is a vehicle seat including a first seat disposed on a floor of a vehicle, and a second seat adjacent to the first seat in the width direction. The first seat is configured to be slidable in the front-rear direction of the vehicle by a slide rail provided between the floor of the vehicle. The second sheet is detachably installed on a support base that extends from the first sheet in the width direction. In a state where the second seat is mounted on the support base, the first seat is configured to slide integrally with the second seat in the front-rear direction of the vehicle.
According to the first aspect of the present invention, the second seat slides in the front-rear direction together with the first seat when mounted on the support base. That is, the second seat has a structure in which a rail structure for sliding the second seat in the front-rear direction is not provided between the second seat and the floor, but the second seat is attached to the support base in the front-rear direction. Slide movement to is possible. By removing the second sheet from the support base, the space in which the second sheet is installed is made free of the structure of the first sheet. As a result, the support base can be used as a step when a person passes through the space or as a footrest for a person sitting on the rear side seat.

Next, according to a second aspect of the present invention, in the first aspect, the second seat includes a cushion lock mechanism for engaging and locking the seat cushion with the support base, and a first seat adjacent to the seat back. It is fixed to the first seat by two locking mechanisms, which are a back lock mechanism for engaging and locking the seat back.
According to the second aspect of the invention, the second seat is held in a state of being attached to the support base by engaging and locking the seat cushion to the support base by the cushion lock mechanism. Then, the second seat is engaged and locked to the seat back of the adjacent first seat by the back lock mechanism, so that the backrest angle position of the seat back is maintained as if it is caught by the second seat.

Next, according to a third aspect, in the second aspect described above, the back lock mechanism includes a frame-like striker disposed on the seat back of the second seat and disposed on the seat back of the first seat. It is configured to be locked to the hook.
According to the third aspect of the invention, the frame-like striker having a relatively simple configuration is disposed on the seat back on the second seat side that is used by being attached and detached. A hook that operates to lock the striker is disposed on the seat back adjacent to the first seat.

Next, according to a fourth aspect of the present invention, in the third aspect, the striker disposed on the seat back of the second seat is interlocked with the movement of the seat back to the upper side of the seat cushion. The outer shape of the first seat is retracted so as to be locked to a hook disposed on the seat back of the first seat in conjunction with the movement of raising the seat back. .
According to the fourth aspect of the invention, the striker is pulled out so as to be able to be engaged with the hook by raising the seat back of the second sheet to be engaged with the seat back of the adjacent first sheet. Become. The striker is stored inside the outer shape of the seat back by tilting the seat back of the second seat to the upper side of the seat cushion. Therefore, when the second sheet is in the folded state, the striker provided for locking with the hook is retracted, so that the striker does not become an obstacle.

The present invention can obtain the following effects by taking the above-described means.
First, according to the first aspect of the invention, the second seat can be attached to and detached from the first seat that can slide in the front-rear direction, so that both the seats can slide in the front-rear direction. The number of parts can be reduced.
Furthermore, according to the second aspect of the present invention, by providing the cushion lock mechanism for engaging and locking the seat cushion of the second seat to the support base, it is possible to stabilize the mounting state of the second seat on the support base. it can. Further, by providing a back lock mechanism that engages and locks the seat back of the second seat with the seat back of the adjacent first seat, the holding force necessary for holding the backrest angle of the second seat is increased. Since one sheet can be secured, the second sheet can be configured relatively simply.
Further, according to the third invention, a striker having a relatively simple structure is disposed on the seat back on the second seat side which is used by being attached and detached, and the striker is locked to the seat back on the second seat side. By disposing the hooks that act so as to make the second sheet, the configuration of the second sheet can be made relatively simple.
Further, according to the fourth invention, the striker is retracted in conjunction with the movement in which the seat back of the second seat is folded on the upper side of the seat cushion, so that the obstacle protruding from the second seat Usability can be improved by eliminating things.

  Embodiments of the best mode for carrying out the present invention will be described below with reference to the drawings.

First, the vehicle seat of Example 1 will be described with reference to FIGS.
Here, in FIG. 1, a schematic configuration of the vehicle seat of the present embodiment is represented by a perspective view. As shown in the figure, on the floor F of the vehicle, two side seats 10 and 20 are arranged on the left and right sides with an interval in the width direction. In the following description, the side seat 10 disposed on the left side of the vehicle will be referred to as the left side seat 10 and the side seat 20 disposed on the right side of the vehicle will be referred to as the right side seat 20 for convenience. There is. The left side sheet 10 is shown on the right front side in FIG. 1, and the right side sheet 20 is shown on the left back side of the page.
Although not shown, these side seats 10 and 20 are arranged as the second row of the three rows of seats arranged in the longitudinal direction of the vehicle. In the space S between the side sheets 10 and 20, a detachable center sheet 30 is installed. Here, the left side seat 10 corresponds to the first seat of the present invention, and the center seat 30 corresponds to the second seat of the present invention. The center sheet 30 is formed to have a narrower width than the side sheets 10 and 20 and can be attached to and detached from the tray-like support base 40 provided in the space S as described above. It is structured as a sheet of the role of the mind.

The tray-like support base 40 that supports the center sheet 30 is configured to extend from the left side sheet 10 in the width direction, and is configured integrally with the left side sheet 10. Here, the slide positions of the side seats 10 and 20 between the side seats 10 and 20 can be adjusted by the slide rail 50 provided between the side seats 10 and 20 in the vehicle longitudinal direction. Therefore, as shown in FIG. 8, when the center seat 30 is mounted on the support base 40, the center seat 30 is integrated with the left side seat 10 as the left side seat 10 slides in the front-rear direction. It is transferred in the front-rear direction.
Here, referring back to FIG. 1, the space S between the side seats 10 and 20 described above is set to a width (for example, 400 mm) that allows a person to walk through in the front-rear direction of the vehicle. Therefore, when the center seat 30 is removed from the support base 40, the installed space S is used as a space for a person to pass through, or an occupant sitting on the third row seat throws his / her foot out. It can be used as a space that can be used. At this time, the support base 40 functions as a stepping platform when a person passes through or functions as a footrest when throwing out a foot.
Hereinafter, the structure of each part, such as the assembly structure of the support base 40 and the attachment / detachment structure of the center seat 30, will be described in detail.

First, the basic configuration of each sheet will be described.
That is, the left side seat 10 includes a seat back 11 that serves as a backrest portion and a seat cushion 12 that serves as a seating portion. Here, a buckle 10 </ b> B for mounting the seat belt is provided at a portion near the edge side near the center seat 30 of the seat cushion 12 so as to be exposed from the seating surface. The buckle 10 </ b> B is fixed to the skeleton of the seat cushion 12 with a base portion embedded in the seat cushion 12.
Here, in FIG. 3, the framework structure of the entire left side seat 10 is represented by a perspective view. As shown in the figure, the skeleton of the left side seat 10 includes a portal-shaped back frame 11F that forms the skeleton of the seat back 11, and the skeleton of the seat cushion 12 connected to both leg portions of the back frame 11F. And a cushion frame 12F. The back frame 11F and the cushion frame 12F are connected to each other by a reclining device 10R provided at a position between the leg portions of the back frame 11F and the cushion frame 12F. The configuration of the reclining device 10R is a conventionally known one, and a detailed description thereof will be omitted.
The above-described cushion frame 12F is arranged side by side on both sides in the width direction of the seat cushion 12, and is formed in an elongated shape in the front-rear direction along the side shape of the seat cushion 12, respectively. Specifically, the cushion frame 12F is formed in a closed cross-sectional shape in which a long plate-like member made of a steel plate is bent in a square tube shape in the front-rear direction, and the bent grooves are welded together. Yes. As a result, the cushion frame 12F is configured to be resistant to bending and twisting, and the seat cushion 12 is stably supported from below by the cushion frame 12F.

Between the cushion frame 12F and the vehicle floor F, a slide rail 50 in the front-rear direction is disposed. The slide rail 50 is configured such that upper rails 51 integrally provided on the lower surface of the cushion frame 12F are slidably fitted to lower rails 52 extending on the floor F in the front-rear direction. .
Here, each upper rail 51 is normally held in a state in which sliding movement with respect to the lower rail 52 is locked by a slide lock device 53 provided between the upper rail 51 and the lower rail 52. The locked state of the slide lock device 53 is released by performing a pull-up operation of the operation lever 50A that connects the slide lock devices 53 disposed at the front position of the seat cushion 12. Accordingly, by releasing the lock state of the slide lock device 53 by pulling up the operation lever 50A, the entire left side seat 10 can be slid back and forth with respect to the floor F as shown in FIG. . Then, if the pulling operation of the operation lever 50A is stopped after the left side seat 10 is slid, the slide lock device 53 is returned to the locked state again. Thereby, the left side seat | sheet 10 can be locked to the adjusted slide position.
The basic configuration of the right side seat 20 shown in FIG. 1 is substantially the same as the basic configuration of the left side seat 10 described above. That is, the right side seat 20 also has a seat back 21 and a seat cushion 22, and a buckle 20B for attaching a seat belt is exposed from the seating surface at a portion near the edge side of the seat cushion 22 near the center seat 30. It is provided in the state. And the right side seat 20 can also adjust the slide position in the vehicle longitudinal direction by the slide rail 50 provided between the floor F.
The center seat 30 includes a seat back 31 and a seat cushion 32. The seat back 31 and the seat cushion 32 are formed to have a narrower width than that of the side seats 10 and 20 described above. As shown in FIG. 2, the center seat 30 has an attachment / detachment structure disposed on the lower surface side of the seat cushion 32 and a corresponding attachment / detachment structure disposed at both end positions in the width direction of the support base 40. By being attached, it is detachably mounted on the support base 40. The structure for attaching and detaching the center sheet 30 to the support base 40 will be described in detail later. The seat back 31 of the center seat 30 is lifted with the seat cushion 32 mounted on the support base 40 so that the backrest angle is raised toward the rear side. 11 is engaged and locked to a back lock device 60 provided in the motor 11. Thereby, the backrest angle of the seat back 31 of the center seat 30 is maintained so as to lean on the seat back 11 of the left side seat 10.

Here, the configuration of the back lock mechanism for engaging and locking the seat back 31 of the center seat 30 with the seat back 11 of the left side seat 10 will be described in detail.
That is, as shown in FIG. 4, a portal frame-shaped striker 31 </ b> S is disposed at the shoulder opening position on the right side of the sheet back 31 of the center seat 30. The striker 31S is hinged to a back frame 31F that forms the skeleton of the seat back 31. As a result, the striker 31S is retracted to the side of the seat back 31 (indicated by a solid line in the figure) as it rotates about its hinge point, and is folded downward and stored inside the shape of the seat back 31. The state can be switched to a state (virtual line state shown in the figure).
Specifically, the striker 31S is urged so as to always protrude to the side of the seat back 31 by the action of a torsion spring (not shown) hooked between the striker 31S and the back frame 31F. Here, an operation cable 31C is connected between the striker 31S and the cushion frame 32F. The cable length of the operation cable 31C is set so as to allow the urging movement of the striker 31S when the seat back 31 is raised from the seat cushion 32. Accordingly, when the seat back 31 is in the raised state, the striker 31S is held in a posture state that protrudes to the side of the seat back 31. The operation cable 31 </ b> C is pulled by a movement in which the seat back 31 is folded on the upper side of the seat cushion 32 so as to pull the striker 31 </ b> S downward. Thereby, the striker 31S is folded and held inside the shape of the seat back 31 as the seat back 31 is folded. The state where the striker 31S is folded into the shape of the seat back 31 is well represented in FIG. 1 and FIG.
On the other hand, as shown in FIG. 3, a back lock device 60 capable of engaging and locking the striker 31 </ b> S described above is disposed at the shoulder opening position on the left side of the sheet back 11 of the left side seat 10. The back lock device 60 raises the seat back 31 of the center seat 30 toward the rear side, thereby receiving and engaging the striker 31 </ b> S projected to the side of the seat back 31. It can be locked. Here, the configuration of the backlock device 60 is illustrated in detail in FIGS. 6 and 7.

That is, as shown in FIG. 6, the backlock device 60 includes a base 61, a hook 62, a pole 63, and a tension spring 64.
Specifically, the base 61 has a configuration in which two steel plates are disposed facing each other with a gap therebetween, and is fixed integrally with the back frame 11F. The base 61 is formed with a receiving port 61E for receiving the striker 31S.
Next, the hook 62 is disposed so as to be sandwiched between two steel plates of the base 61, and is connected to the base 61 by a connecting shaft 62R so as to be pivotable. The hook 62 has an outer peripheral edge portion partially formed in an undulating shape to form an inner jaw portion 62U and an outer jaw portion 62L. The hook 62 is normally urged in the counterclockwise rotation direction shown in the figure by an urging force of a tension spring 64 that is hooked between the hook 63 and a pole 63 described later, and rotates to interfere with the base 61. Held in position. Thus, the hook 62 is in a posture state in which the inner jaw portion 62U is exposed in the mouth of the receiving port 61E of the base 61 and the outer jaw portion 62L is retracted outside the mouth of the receiving port 61E.
Next, the pole 63 is disposed so as to be sandwiched between the two steel plates of the base 61, and is connected to the base 61 so as to be pivotable by a connecting shaft 63R. The pole 63 is normally urged in the clockwise rotation direction shown in the figure by the urging force of the tension spring 64 hooked between the pole 62 and is pressed against the outer peripheral edge portion of the hook 62. Held as a posture position. Here, the pawl 63 is formed with a claw 63M having a corner at a portion on the contact surface side pressed against the hook 62.
The backlock device 60 configured as described above operates as follows in accordance with the movement of the striker 31S entering the receiving port 61E. That is, when the striker 31S enters the receiving port 61E, the inner jaw portion 62U of the hook 62 exposed in the mouth of the receiving port 61E is pressed by this, and the hook 62 is pushed in the clockwise direction in the drawing. Is done. As a result, as shown in FIG. 7, the inner jaw portion 62U is pushed out of the mouth of the receiving port 61E, and the outer jaw portion 62L is exposed to the back of the striker 31S and exposed in the mouth of the receiving port 61E. At this time, the locking claw 63M of the pole 63 pressed against the hook 62 is formed in a stepped shape formed on the outer peripheral edge portion of the hook 62 as the hook 62 rotates in the clockwise direction in the drawing. It gets over by the latching step part 62M and falls by urging. Thereby, the hook 62 is in a posture state in which the counterclockwise rotation is restricted by the engagement between the engagement claw 63M of the pole 63 and the engagement step portion 62M, and the striker 31S is engaged. The engagement lock state is maintained.
The engagement locked state of the hook 62 is released when the release cable 65 connected to the pole 63 is pulled. That is, when the release cable 65 is pulled, the pole 63 is rotated counterclockwise in the drawing, and the locking claw 63M is pulled out from the locking step 62M and released from the locked state with the hook 62. The As a result, the hook 62 rotates counterclockwise by the urging force of the tension spring 64 and pushes the striker 31S out of the receiving port 61E. The pulling operation of the release cable 65 for releasing the engagement lock state of the back lock device 60 is performed by operating a release lever (not shown) provided on the back side of the seat back 11.

Next, the assembly structure of the support base 40 will be described. Here, in FIG. 5, the assembly structure of the support base 40 with respect to the left side seat 10 is enlarged and shown in a perspective view. As shown in the figure, the support base 40 is fixed to the cushion frame 12F on the side of the left side seat 10 close to the center seat 30 with two metal pipe-like support frames 41 and 42 as the framework. It becomes the composition.
Specifically, the two support frames 41 and 42 are arranged side by side in the front-rear direction so as to form a front frame portion and a rear frame portion of the support base 40, respectively. And the edge part of the paper frame right side of the support frame 41 arrange | positioned in the front side is plate | board thickness direction to the 1st side board part F1 and the 2nd side board part F2 which comprise the cross-section square cylinder side plate part of the cushion frame 12F. Is inserted through. Accordingly, the front support frame 41 is integrally fixed to the cushion frame 12F as being supported at two points in the axial length direction by the first side plate portion F1 and the second side plate portion F2 of the cushion frame 12F. .
On the other hand, the rear support frame 42 cannot be inserted through the second side plate portion F2, which is the second plate portion in the insertion direction of the cushion frame 12F, in the plate thickness direction. It has become. That is, at the position penetrating in the thickness direction of the second side plate portion F2, the root side portion of the above-described buckle 10B that is an obstacle is provided as being fixed to the cushion frame 12F. As a result, the rear support frame 42 cannot be inserted through the second side plate portion F2 in the thickness direction, and can only be inserted up to the first side plate portion F1. However, a support bracket Fb made of a steel plate is integrally provided with the cushion frame 12F at a position before the insertion of the first side plate portion F1 at the insertion position. The support brackets Fb are arranged side by side in the width direction so that the first side plate portion F1 and the second side plate portion F2 face the plate surface. The support bracket Fb is provided as a functional component for fixing a cushion lock device 46 provided for detachably engaging and locking a center seat 30 described later to the support base 40 to the cushion frame 12F. The rear support frame 42 is inserted through the plate-like support bracket Fb and the first side plate portion F1 in the plate thickness direction. Accordingly, the rear support frame 42 is also integrally fixed to the cushion frame 12F in a state of being supported at two points in the axial length direction.

Each of the support frames 41 and 42 described above is rigidly coupled integrally with a metal long plate-shaped reinforcing frame 43 that is stretched between the left end portions of the paper. The reinforcing frame 43 is rigidly connected to the support frames 41 and 42 in a posture in which the plate is laid sideways. Further, each of the support frames 41 and 42 is also rigidly coupled integrally with a metal long plate-like reinforcing plate 44 spanned between them at the center in the width direction. The reinforcing plate 44 is thinner than the reinforcing frame 43 and has a larger plate width, and is rigidly coupled to the support frames 41 and 42 in a posture orientation in which the plates are laid sideways. As a result, the support frames 41 and 42 are configured such that the support rigidity such as torsional rigidity and the support strength are enhanced by the reinforcing frame 43 and the reinforcing plate 44 that are stretched over in the form of a cross beam.
As shown in FIG. 2, the support base 40 that constitutes the above-described framework structure is entirely covered with a resin cover 47 so that the internal framework structure cannot be seen from the outside. Yes. When the center sheet 30 is installed on the support base 40 or used as a footrest or a footrest, the resin cover 47 may be greatly deformed or cracked even if it receives external pressure. It has a configuration with no rigidity.

Next, the attachment / detachment structure of the center sheet 30 to the support base 40 will be described.
That is, as shown in FIG. 2, locking pins 32A and 32B, a fitting hole 32H, and a striker 32S functioning as a detachable structure to the support base 40 are arranged on the lower surface side of the seat cushion 32 of the center seat 30, respectively. It is installed. As shown in FIG. 4, the locking pins 32 </ b> A and 32 </ b> B are end portions of pin members extending in the width direction provided at the lower front side position of the cushion frame 32 </ b> F forming the skeleton of the seat cushion 32. It is constituted by. Further, the fitting hole 32H is formed through a plate-like bracket provided in a protruding manner in the width direction at the lower rear side position of the cushion frame 32F. Further, the striker 32S is provided at the lower rear side position of the cushion frame 32F so as to protrude in the width direction opposite to the plate-like bracket through which the fitting hole 32H is formed. The pin member, the plate-like bracket, and the striker 32S are each integrally fixed to the cushion frame 32F.
On the other hand, referring back to FIG. 2, on the upper surface side of the support base 40, the locking recesses 43 </ b> A and 45 </ b> A, the fitting pins 43 </ b> B, and the cushion locking device 46 corresponding to the respective detachable structures provided on the center sheet 30 are respectively provided. It is arranged. As shown in FIG. 5, the one locking recess 43 </ b> A is disposed at the front end position of the reinforcing frame 43, and has a configuration in which the recessed opening portion is directed forward. The other locking recess 45A is disposed at the upper end position of the upright plate 45 that is integrally fixed to the cushion frame 12F of the left side seat 10, with the concave opening portion facing forward. It is an arrangement configuration. The upright plate 45 is configured to extend from the cushion frame 12 </ b> F of the left side seat 10 to an upper position of the front support frame 41. Further, the fitting pin 43B is provided integrally with the reinforcing frame 43 at the position of the rear end portion thereof, and is disposed in a manner protruding upward from the reinforcing frame 43. The cushion lock device 46 is integrally fixed to a support bracket Fb that is integrally fixed to the cushion frame 12F of the left side seat 10. The support bracket Fb is configured such that the above-described rear support frame 42 is inserted, and the width of the support bracket Fb is such that the first side plate portion F1 and the second side plate portion F2 of the cushion frame 12F face the plate surface. It is arranged side by side in the direction.

Returning to FIG. 2, the resin cover 47 provided so as to cover the entire upper surface side of the support base 40 has a flat seat plate portion 47 </ b> A and bulges at both end portions in the width direction. It is formed in a shape having a right side wall portion 47R (left side as viewed in the drawing) and a left side wall portion 47L (right side as viewed in the drawing).
The right side wall portion 47R formed on the left side of the paper surface is formed so as to cover the reinforcing frame 43 described above with reference to FIG. Specifically, the right side wall 47 </ b> R is formed in a shape in which the portions where the locking recesses 43 </ b> A and the fitting pins 43 </ b> B that are constituent parts of the detachable structure are arranged are thinned. As a result, the locking recess 43A is covered with the right side wall 47R, but is exposed to the outside, and is buried inside the cover 47 in appearance. Specifically, the opening shape of the right side wall portion 47R is a shape that is hollowed so that the recessed opening portion of the locking recess 43A is exposed to the front side and the right side of the drawing.
Further, the left side wall portion 47L formed on the right side as viewed in the drawing is formed so as to cover the upright plate 45 and the cushion lock device 46 described above with reference to FIG. Specifically, the left side wall 47L is formed in a shape in which the portions where the locking recesses 45A and the cushion lock device 46, which are components of the detachable structure, are arranged are thinned. As a result, the locking recess 45A and the cushion lock device 46 are covered with the left side wall 47L, but are exposed to the outside, and are buried inside the cover 47 in appearance. It is said that. Specifically, the shape of the left side wall 47L is such that the recessed opening portion of the locking recess 45A is exposed to the front side and the left side of the paper, and the cushion lock device 46 is located above the upper side. It is made into the shape by which each meat | flesh was cut | disconnected so that it might be exposed to the paper surface left side.
Here, a flexible surface-shaped rubber fin 47G in which a T-shaped cut Gc is formed is provided at a portion of the left side wall 47L where the cushion lock device 46 is disposed. Thus, the cushion lock device 46 is covered with the rubber fin 47G so that it cannot be seen in appearance.

  In other words, the support base 40 having the above-described configuration is arranged such that the attachment / detachment structure with respect to the center sheet 30 is divided at both end positions in the width direction of the support base 40. As a result, when the support base 40 is used as a footstool or a footrest, the above-described attachment / detachment structures are not obstructed, and the use space in the width direction is widened. Further, since the support base 40 has a configuration in which the periphery of each detachable structure is covered with a cover 47, the support base 40 is configured so that the foot is not easily caught when the support base 40 is used as a step or a footrest.

The center sheet 30 is attached to and detached from the support base 40 having the above configuration as follows.
First, with reference to FIG. 2, a method for mounting the center sheet 30 on the support base 40 will be described. In this case, it is preferable that the center seat 30 is mounted on the support base 40 in a folded posture in which the seat back 31 is tilted forward to the seat cushion 32 side.
That is, first, the lower surface of the seat cushion 32 of the center seat 30 in the folded posture state is faced down, and the center seat 30 is slid on the support base 40 in a posture state in which the rear end portion is lifted. And slide it backward. As a result, the pair of locking pins 32A and 32B provided at the lower front side position of the seat cushion 32 of the center seat 30 are formed in the concave interiors of the respective locking recesses 43A and 45A provided at the front side position of the support base 40. Get in.
When the locking pins 32A and 32B completely enter the locking recesses 43A and 45A and the sliding movement of the center seat 30 to the rear side is restricted, the locking pins 32A and 32B are then locked. Further, the rear end of the center seat 30 is operated to drop the center pin 30 with the locking pins 32A and 32B as the hinge center. Thereby, the fitting hole 32H provided in the lower rear side position of the seat cushion 32 of the center seat 30 receives the fitting pin 43B of the support base 40 inside, and the striker 32S is brought into the inside from the notch Gc of the rubber fin 47G. It enters and is engaged and locked to the cushion lock device 46. Here, the configuration of the cushion lock mechanism for engaging and locking the striker 32S with the cushion lock device 46 is the same as the configuration of the back lock mechanism described above. That is, the cushion lock mechanism is configured such that when the striker 32S is pushed into the cushion lock device 46, a hook (not shown) provided on the cushion lock device 46 is engaged with this. Therefore, the center seat 30 is mounted on the support base 40 in a state in which the movement of the front, rear, left, right, and top with respect to the support base 40 is restricted by the locking of each detachable structure including the lock.
Next, a method for detaching the center sheet 30 from the support base 40 will be described. Here, the engagement lock state of the cushion lock device 46 described above is released by performing a release operation of a release lever (not shown) provided in the left side seat 10. Therefore, first, the release operation of the release lever is performed to release the engagement lock state of the striker 32S, and then the rear end of the center seat 30 is lifted. If the center seat 30 is operated to slide forward as it is, the locking pins 32A and 32B are extracted forward from the locking recesses 43A and 45A. As a result, the center sheet 30 is detached from the support base 40.
In addition, since the usage method of a present Example is demonstrated by the attachment / detachment operation method of the center sheet | seat 30 mentioned above, description is abbreviate | omitted.

Thus, according to the vehicle seat of the present embodiment, the center seat 30 (second seat) can be attached to and detached from the left side seat 10 (first seat) that is slidable in the front-rear direction. As a result, the number of components for sliding both seats in the front-rear direction can be reduced.
Furthermore, by providing a cushion lock mechanism that engages and locks the seat cushion 31 of the center seat 30 to the support base 40, the mounting state of the center seat 30 on the support base 40 can be stabilized. Further, by providing a back lock mechanism for engaging and locking the seat back 31 of the center seat 30 to the seat back 11 of the adjacent left side seat 10, the holding force necessary for holding the backrest angle of the center seat 30 is reduced to the left. Since the side sheet 10 can be secured, the center sheet 30 can be configured to be relatively simple and lightweight.
Further, a striker 31S having a relatively simple configuration is disposed on the seat back 31 on the center seat 30 side that is used by being attached and detached, and the hook operates to lock the striker 31S on the seat back 31 on the center seat 30 side. By arranging 62, the configuration of the center sheet 30 can be relatively simplified.
Further, the striker 31S is stored in conjunction with the movement of the seat back 31 of the center seat 30 being folded over the seat cushion 31, thereby eliminating the obstacles protruding from the center seat 30 and improving usability. Can be better.

Although the embodiment of the present invention has been described with respect to one example, the present invention can be implemented in various forms in addition to the above-described example.
For example, you may comprise the 1st sheet | seat in which a support stand is provided in a right side sheet | seat. Moreover, in the said Example, although the vehicle with which 3 sheets | seats were arranged in the width direction was shown, it is applicable also to the vehicle with which 2 sheets | seats were arranged in the width direction. In this case, one sheet is configured as the first sheet and the other sheet is configured to be detachable as the second sheet.
Moreover, although the attachment / detachment structure with respect to the 2nd sheet | seat of a support stand showed the structure provided in the both ends position of the width direction of a support stand, it is the structure provided only in the one edge part position of the width direction, It doesn't matter. However, in this case, since the support state of the second sheet is a cantilever state, the stability is deteriorated.
Further, three or more support frames constituting the framework structure of the support base may be arranged side by side in the front-rear direction. In addition, reinforcing members such as reinforcing plates may be arranged in a number greater than that shown in the above embodiment. Further, the number of support points for supporting each support frame may be three or more. However, the weight of the entire seat increases by increasing the number of support frames and reinforcing members, or by adding support parts to increase the number of support points of the support frame. is required.
In addition, although the buckle used for wearing the seat belt is illustrated as an obstacle part that obstructs the insertion of the support frame, it goes without saying that other functional parts may become an obstacle. In this connection, the support bracket for fixing the locking device to the cushion frame as a functional component arranged to secure the support point of the support frame is shown, but the position of the support frame on the insertion axis is shown. When other functional parts that are integrated with the cushion frame are disposed, this functional part can be assigned as a configuration for securing the support point of the support frame.
Moreover, the fitting structure of the unevenness | corrugation of the fitting pin and the fitting hole which are attachment / detachment structures of a support stand and a 2nd sheet | seat may be the arrangement structure to which the unevenness | corrugation was reversed. In this case, unlike the configuration in which the fitting pin protrudes from the support base, all the detachable structures provided on the support base are disposed in such a manner that they are buried inside the cover in appearance. is there. In addition, it cannot be overemphasized that each attachment / detachment structure provided in a support stand may be arrange | positioned by changing right and left.
In addition, the striker provided in the seat back of the second seat has a configuration that protrudes to the side of the seat back or is stored in the shape of the seat back as it rotates around its hinge point. It may be configured to move in and out by a reciprocating linear motion.
Moreover, although the striker having a relatively simple configuration is disposed on the second seat side and the backlock device having a relatively complicated configuration is disposed on the first seat side, the reverse arrangement relationship is illustrated. It may be. However, in this case, since a complicated configuration is added to the second sheet that is attached and detached, the number of parts installed on the second sheet is increased and the weight is increased. Absent.

It is a perspective view showing the schematic structure of the vehicle seat of a present Example. It is a principal part enlarged view showing the attachment or detachment structure of a center sheet | seat and a support stand. It is a perspective view showing frame structure of a side seat on the left side of a vehicle. It is a perspective view showing frame structure of a center sheet. It is a principal part expansion perspective view of FIG. 3 showing the assembly | attachment structure of the support stand. It is a block diagram showing the state before a striker engages and locks with a back lock device. It is a block diagram showing the state where the striker is engaged and locked to the back lock device. It is a perspective view showing the state where the side seat on the left side of the vehicle was slid forward.

Explanation of symbols

10 Side seat (first seat)
10B Buckle 10R Reclining device 11 Seat back 11F Back frame 12 Seat cushion 12F Cushion frame F1 First side plate portion F2 Second side plate portion Fb Support bracket 20 Side seat 20B Buckle 21 Seat back 22 Seat cushion 30 Center seat (second seat)
31 Seat back 31F Back frame 31S Striker 31C Operation cable 32 Seat cushion 32F Cushion frame 32A Lock pin 32B Lock pin 32H Fitting hole 32S Strike 40 Support base 41 Support frame 42 Support frame 43 Reinforcement frame 43A Locking recess 43B Pin 44 Reinforcement plate 45 Standing plate 45A Locking recess 46 Cushion lock device 47 Cover 47A Seat plate portion 47R Right side wall portion 47L Left side wall portion 47G Rubber fin Gc Notch 50 Slide rail 50A Operation lever 51 Upper rail 52 Lower rail 53 Slide lock device F Floor S space 60 back lock device 61 base 61E receiving port 62 hook 62U inner jaw part 62L outer jaw part 62M locking step part 62R connecting shaft 63 pole 63M Locking claw 63R Connecting shaft 64 Tension spring 65 Release cable

Claims (4)

A vehicle seat comprising a first seat disposed on a floor of a vehicle, and a second seat adjacent thereto in the width direction,
The first seat is configured to be slidable in the front-rear direction of the vehicle by a slide rail provided between the floor of the vehicle,
The second sheet is detachably installed on a support base extending in the width direction from the first sheet,
When the second seat is mounted on a support base, the first seat is configured to slide in the vehicle front-rear direction integrally with the second seat. Vehicle seat. The vehicle seat according to claim 1,
The second seat includes: a cushion lock mechanism for engaging and locking the seat cushion with the support base; and a back lock mechanism for engaging and locking the seat back with the seat back of the adjacent first seat. A vehicle seat that is fixed to a first seat by two locking mechanisms. The vehicle seat according to claim 2,
The back lock mechanism is configured such that a striker disposed on a seat back of the second seat is engaged with a hook disposed on a seat back of the first seat. Vehicle seat. The vehicle seat according to claim 3,
The striker disposed on the seat back of the second seat is stored inside the outer shape of the seat back in conjunction with the movement of the seat back being lowered to the upper side of the seat cushion, A vehicle seat characterized in that the vehicle seat is pulled out so as to be able to be locked to a hook disposed on the seat back of the first seat in conjunction with a movement of raising the seat back.

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