JP3628934B2 - Vehicle seat device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a vehicle seat device, and more particularly to a vehicle seat device that is detachable from a floor surface of a vehicle such as an automobile.
[0002]
[Prior art]
Conventionally, as an example of a vehicle seat device that is detachable from a floor surface of a vehicle such as an automobile, an example is disclosed in Japanese Patent Application Laid-Open No. 11-151961.
[0003]
As shown in FIG. 10, in this vehicle seat device, the front / rear slide mechanism 100 is composed of a fixed rail 102 and a movable rail 104, and when the seat is removed from the floor, or in a tumble state (a state in which it is flipped up) ), The fixed rail 102 and the movable rail 104 are held in a locked state by a slide lock 106. As a result, when the seat is removed from the floor, the fixed rail 102 and the movable rail 104 do not move relative to each other. Therefore, the left and right fixed rails 102 are not stepped when the seat is mounted on the floor surface again. So easy to install.
[0004]
[Problems to be solved by the invention]
However, in this vehicle seat device, the slide lock 106 is unlocked in response to the forward tilt of the seat back when the seat is removed from the floor, and the movable rail 104 is fixed to the fixed rail 102 in a predetermined manner. The release arm 120 fixed to the fixed rail 102 is brought into contact with the elevating member 122 in a state where it is moved to the neutral position or the like. Further, when the release arm 120 comes into contact with the elevating member 122, the elevating member 122 is rotated, and the locking state of the unlocking piece 124 locked to the elevating member 122 is released by this rotation, The slide lock 106 is again locked. For this reason, the apparatus is complicated and the operation is complicated.
[0005]
In view of the above facts, an object of the present invention is to provide a vehicle seat device that has a simple device and that can improve operability when the seat is detached from the vehicle body or in a tumble state.
[0006]
[Means for Solving the Problems]
The present invention according to claim 1 is a seat lock mechanism for engaging a ratchet with a striker disposed on the floor of the vehicle body and fixing the seat;
A vehicle seat device having a slide mechanism that moves the seat in the front-rear direction by relative movement between the fixed rail and the movable rail, and prohibits relative movement between the fixed rail and the movable rail by setting the slide lock to the slide lock position. Because
An operation portion rotatably supported on the same shaft as the ratchet, and for releasing the engagement between the striker and the ratchet;
In conjunction with the movement of the operation unit in the release direction, slide lock release prohibiting means for holding the slide lock in a slide lock position ;
It is provided with.
[0007]
Therefore, when the seat is removed from the vehicle body or in the tumble state, the striker disposed on the vehicle body floor and the ratchet on the seat side are disengaged from each other so as to be rotatable on the same shaft as the ratchet. When the operated operation unit is operated, the slide lock release prohibiting means holds the slide lock in the slide lock position in conjunction with the operation unit . As a result, when the seat is detached from the vehicle body or in the tumble state, the slide lock mechanism can be easily held in the locked state, so that the operability is good and the mounting configuration is simple.
[0008]
According to a second aspect of the invention, the vehicle seat device according to claim 1, wherein the slide lock release inhibiting means, in conjunction with the movement of the release direction of the operating portion, the slide lock position the slide lock The contact means moves to a holding position.
[0009]
Therefore, when the seat is detached from the vehicle body or tumbled, if the operating portion is operated in the release direction, the contact means moves to a position where the slide lock is held at the slide lock position in conjunction with the movement of the operating portion. . As a result, when the seat is detached from the vehicle body or in the tumble state, the slide lock mechanism can be easily held in the locked state, so that the operability is good and the mounting configuration is simple.
[0010]
According to a third aspect of the present invention, in the vehicle seat device according to the second aspect, the contact means is a protruding portion provided in a component of the seat lock mechanism.
[0011]
Therefore, in addition to the contents described in claim 2, since the abutting means is a protruding portion provided in a component part of the seat lock mechanism, it can be applied to a seat where the slide lock and the seat lock mechanism are close to each other. is there.
[0012]
According to a fourth aspect of the present invention, in the vehicle seat device according to the third aspect, the projecting portion is provided in the operation portion.
[0013]
Therefore, in addition to the content described in claim 3, since the projecting portion is provided in the operation portion, the invention can be applied to a seat in which the slide lock and the operation portion in the seat lock mechanism are close to each other.
[0014]
According to a fifth aspect of the present invention, in the vehicle seat device according to the second aspect, the contact means is a link member that interlocks with the operation portion and holds the slide lock in a slide lock position. And
[0015]
Therefore, in addition to the content described in claim 2, since the link member is interposed, the present invention can be applied to a seat in which the operation portion and the seat lock mechanism are separated.
[0018]
DETAILED DESCRIPTION OF THE INVENTION
1st Embodiment of the vehicle seat apparatus in this invention is described according to FIGS.
[0019]
In the figure, the arrow FR indicates the vehicle body front direction, the arrow UP indicates the vehicle body upward direction, and the arrow IN indicates the vehicle width inside direction.
[0020]
As shown in FIG. 5, the vehicle seat 10 of the present embodiment can be attached to and detached from a pair of left and right front leg strikers 14 and rear leg striker 16 disposed on the floor 12 of the vehicle body via a lock mechanism. It is arranged. Further, a pair of left and right slide mechanisms 22 are disposed along the vehicle body front-rear direction at the lower portions of both ends of the seat cushion frame 20 in the vehicle width direction.
[0021]
As shown in FIG. 2, the slide mechanism 22 includes a movable rail 24 (also referred to as an upper rail) fixed to the seat cushion frame 20 and a fixed rail 26 (also referred to as a lower rail) that is slidably attached to the movable rail 24. It is a known configuration having
[0022]
As shown in FIG. 1, a slide lock lever 30 is supported on a pair of left and right movable rails 24 by a shaft 32 so as to be rotatable in the vertical direction (the direction of arrows A and B in FIG. 1). The lock lever 30 rotates in the slide lock release direction (arrow B direction) by pulling up the operation unit 30A (see FIG. 5) extending in front of the seat.
[0023]
A slide lock 30B having a comb-like lock claw 30C is formed on the rear part of the slide lock lever 30. The slide lock 30B is formed when the slide lock lever 30 rotates in the slide lock direction (arrow A direction). In addition, it moves upward.
[0024]
As shown in FIG. 2, the lock claw 30 </ b> C of the slide lock 30 </ b> B moved upward penetrates the lock hole 36 formed in the movable rail 24 in addition to the lock hole 34 formed in the fixed rail 26. A position where relative movement with the movable rail 24 is prohibited, that is, a slide lock position is set. The slide lock lever 30 is urged in the direction of arrow A by an urging means (not shown). When the seat is moved in the front-rear direction, the slide lock lever 30 is pushed against the urging force. By rotating in the direction, the slide lock 30B moves downward from the slide lock position, and the slide lock is released.
[0025]
On the other hand, the rear portion 26A of the fixed rail 26 extends downward, and a rear side lock mechanism is provided on the rear portion 26A. The rear locking mechanism includes a ratchet 42 rotatably supported on the fixed rail 26 by a shaft 40, a pawl 48 rotatably supported on the fixed rail 26 by a shaft 44 and engaged with the ratchet 42, It is a known configuration having Note that the ratchet 42 and the pole 48 are connected by a coil spring 50 so that the ratchet 42 can be held at the locked position and the unlocked position.
[0026]
Further, a lock bracket 52 constituting a part of the operation portion of the seat lock mechanism is pivotally supported on the shaft 40 of the fixed rail 26 so as to be rotatable in the vertical direction (arrow C direction and arrow D direction in FIG. 1). . A front end portion 48 </ b> A of a pole 48 is rotatably supported by a front end portion 52 </ b> A of the lock bracket 52 via a pin 54. Accordingly, when the rear end portion 52B of the lock bracket 52 is lifted upward and the lock bracket 52 is rotated in the direction of arrow C, the pole 48 is rotated via the pin 54 and the engagement between the pole 48 and the ratchet 42 is released. The ratchet 42 is configured to be detached from the rear leg striker 16.
[0027]
Further, in the present embodiment, a protruding portion 52 </ b> C that constitutes a contact means as a slide lock release prohibiting means is formed at a rear portion of the lock bracket 52 from the center of rotation.
[0028]
As shown in FIG. 2, the protruding portion 52 </ b> C of the lock bracket 52 is a flange portion that extends downward from the slide lock 30 </ b> B in the slide lock lever 30 at the upper portion of the lock bracket 52. Accordingly, by rotating the lock bracket 52 in the unlocking direction (the direction of arrow A in FIG. 1), the protrusion 52C moves below the slide lock 30B in the ride lock lever 30 and prevents the slide lock 30B from moving below. It is supposed to be. That is, the slide lock lever 30 cannot be released and the slide lock lever 30 is held at the slide lock position.
[0029]
As shown in FIG. 1, the operation portion 52B of the lock bracket 52 can be connected to a rear leg lock release lever 57 via, for example, a link mechanism 56 disposed on the movable rail 24 side. When the release lever 57 is pulled upward (in the direction of arrow E in FIG. 1), the arc-shaped wall portion 56B formed on the bracket 56A of the link mechanism 56 rotates in the direction of arrow F, and the operation portion 52B of the lock bracket 52 moves upward. It is pushed up (in the direction of arrow C).
[0030]
As shown in FIG. 1, the rear leg striker 16 with which the ratchet 42 engages is disposed in an opening 60 formed in the floor portion 12, and the bracket 62 that supports the rear leg striker 16 is, for example, a vehicle body The frame member 64 is fixed by a fixing member 66 such as a bolt or a nut.
[0031]
As shown in FIG. 3, a front lock mechanism is provided at the front portion 26 </ b> B of the fixed rail 26. The front lock mechanism includes a base plate 70 fixed to the front portion 26 </ b> B of the fixed rail 26, and a recess 72 formed at the lower front end of the base plate 70 is engaged with the front leg striker 14. Further, a tumble lock 74 as a lock plate is pivotally supported on the base plate 70 by a shaft 76 so as to be rotatable in the vertical direction (in the directions of arrows G and H in FIG. 3). It is urged in the direction of arrow H.
[0032]
As shown in FIG. 4, the front leg striker 14 has both end portions 14 </ b> A and 14 </ b> B fixed to the striker bracket 84, and the striker bracket 84 is bolted to a portion of the floor portion 12 where the reinforcing plate 82 is disposed. It is fixed by fixing means 80 such as a nut. A small-diameter portion 14C is formed at the longitudinal center of the front leg striker 14, and the concave portion 72 of the base plate 70 is engaged with the small-diameter portion 14C.
[0033]
Further, tapered portions 14D and 14E that gradually increase in diameter toward the axial end portion are formed at both ends of the small diameter portion 14C of the front leg striker 14, and the tapered portion 14D has a rectangular cross section. The lower end portion 74 </ b> A of the tumble lock 74 is in contact with the spring 78 while being pressed. Accordingly, when the tumble lock 74 moves inward in the vehicle width direction (in the direction of arrow W in FIG. 4) together with the seat, the lower end portion 74A of the tumble lock 74 comes into contact with the tapered portion 14D so that the movement is prevented. It has become. Since the lower end portion 74A of the tumble lock 74 on the opposite side on the left and right is in contact with the other tapered portion 14E, the lateral shift of the seat 10 in both the left and right directions can be prevented, and the front leg striker 14 and the tumble lock 74 are installed. It is possible to absorb the variation of.
[0034]
Next, the operation of this embodiment will be described.
[0035]
In the present embodiment, when the rear leg lock release lever 57 is lifted upward (in the direction of arrow E in FIG. 1) when the seat 10 is removed from the floor 12 of the vehicle body or in a tumble state, the bracket 56A of the link mechanism 56 is pulled. The arc-shaped wall portion 56B formed in (1) rotates in the direction of arrow F, and the operation portion 52B of the lock bracket 52 is pushed upward (in the direction of arrow C). Therefore, when the lock bracket 52 rotates in the unlocking direction (the direction of arrow A in FIG. 1), the pole 48 rotates via the pin 54 and the engagement between the pole 48 and the ratchet 42 is released. Comes off the rear leg striker 16.
[0036]
Further, when the lock bracket 52 rotates in the unlocking direction (the direction of arrow A in FIG. 1), the protrusion 52C of the lock bracket 52 moves below the slide lock 30B in the ride lock lever 30, and the ride lock lever 30 is moved. Hold in the slide lock position.
[0037]
As a result, when the seat 10 is detached from the floor portion 12 of the vehicle body or in the tumble state, the slide lock mechanism can be easily held in the locked state, so that the operability is good and the mounting configuration is simple.
[0038]
Further, in the present embodiment, since the protruding portion 52C as the slide lock release prohibiting means is provided in the lock bracket 52 as the operation portion, it can be applied to a seat in which the slide lock 30B and the operation portion in the seat lock mechanism are close to each other. is there.
[0039]
In the present embodiment, as shown in FIG. 4, tapered portions 14D and 14E that gradually increase in diameter toward the end in the axial direction are formed at both ends of the small diameter portion 14C of the front leg striker 14. The lower end portion 74A of the tumble lock 74 having a rectangular cross section is in contact with the tapered portion 14D while being pressed by the spring 78. Therefore, when the tumble lock 74 moves inward in the vehicle width direction (in the direction of arrow W in FIG. 4) together with the seat, the lower end portion 74A of the tumble lock 74 abuts against the tapered portion 14D to prevent the movement. For this reason, it is possible to prevent lateral displacement of the seat 10 in both the left and right directions, and to absorb variations in the installation of the front leg striker 14 and the tumble lock 74.
[0040]
Next, a second embodiment of the vehicle seat device according to the present invention will be described with reference to FIG.
[0041]
In addition, the same member as 1st Embodiment attaches | subjects the same code | symbol, and abbreviate | omits the description.
[0042]
As shown in FIG. 6, in this embodiment, the protrusion 86 constituting the contact means as the slide lock release prohibiting means is provided at the upper rear end of the pole 48, for example, which is a component part of the seat lock mechanism. ing.
[0043]
Next, the operation of this embodiment will be described.
[0044]
In this embodiment, as in the first embodiment, the lock bracket 52 moves in the release direction (the direction of arrow C in FIG. 6), so that the pole 48 rotates in the direction of arrow J. The protruding portion 86 moves upward, moves downward of the slide lock 30B, and holds the slide lock lever 30 in the slide lock position.
[0045]
As a result, when the seat 10 is detached from the floor portion 12 of the vehicle body or in the tumble state, the slide lock mechanism can be easily held in the locked state, so that the operability is good and the mounting configuration is simple.
[0046]
Further, in the present embodiment, the slide lock release prohibiting means is the protrusion 86 provided on the pole 48, so that the slide lock 30B and the pole 48 in the seat lock mechanism can be applied to the seat.
[0047]
Next, a third embodiment of the vehicle seat device according to the present invention will be described with reference to FIG.
[0048]
In addition, the same member as 1st Embodiment attaches | subjects the same code | symbol, and abbreviate | omits the description.
[0049]
As shown in FIG. 7, in the present embodiment, a link bracket 88 as a link member that constitutes a contact means as a slide lock release prohibiting means is disposed between the lock bracket 52 and the slide lock 30B. The link bracket 88 is supported by a pair of left and right movable rails 24 by a shaft 90 so as to be rotatable in the vertical direction (arrow K direction and arrow L direction in FIG. 7). Further, the rear end portion 88A of the link bracket 88 is in contact with the lower side of the pin 54, and the link bracket 88 is moved in the arrow K direction when the lock bracket 52 is rotated in the releasing direction (the arrow C direction in FIG. 7). It is designed to rotate. Further, when the link bracket 88 rotates in the direction of the arrow K, the tip end portion 88B moves upward, moves below the slide lock 30B, and holds the ride lock lever 30 in the slide lock position.
[0050]
Next, the operation of this embodiment will be described.
[0051]
In this embodiment, as in the first embodiment, the lock bracket 52 moves in the release direction (the direction of arrow C in FIG. 7), so that the link bracket 88 that is in contact with the pin 54 rotates in the direction of arrow K. To do. For this reason, the front-end | tip part 88B of the link bracket 88 moves upwards, becomes a position contact | abutted with the slide lock 30B, and hold | maintains the ride lock lever 30 in a slide lock position.
[0052]
As a result, when the seat 10 is detached from the floor portion 12 of the vehicle body or in the tumble state, the slide lock mechanism can be easily held in the locked state, so that the operability is good and the mounting configuration is simple.
[0053]
In this embodiment, since the link bracket 88 as the link member constituting the slide lock release prohibiting means is interposed between the lock bracket 52 and the slide lock 30B, the slide bracket 30B and the lock bracket 52 in the seat lock mechanism are separated from each other. It is applicable to the sheet which is doing.
[0054]
Although the present invention has been described in detail with respect to specific embodiments, the present invention is not limited to such embodiments, and various other embodiments are possible within the scope of the present invention. It will be apparent to those skilled in the art. For example, in the above-described embodiment, as shown in FIG. 4, the tapered portions 14D and 14E that gradually increase in diameter toward the axial direction end side are formed at both ends of the small diameter portion 14C of the front leg striker 14, Instead, as shown in FIG. 8, a tapered portion 74B is provided at the end of the lower end portion 74A of the tumble lock 74, and the tapered portion 74B of the tumble lock 74 contacts the stepped portion 14F formed on the front leg striker 14. It is good also as a structure which prevents lateral deviation by this. Further, as shown in FIG. 9, the front leg striker 14 is formed with tapered portions 14D and 14E, and a tapered portion 74B is also provided at the end of the lower end portion 74A of the tumble lock 74. It is good also as a structure which prevents lateral deviation by contact | abutting to the taper part 14D of the leg striker 14. FIG.
[0055]
【The invention's effect】
According to the first aspect of the present invention, a seat lock mechanism for fixing a seat by engaging a ratchet with a striker disposed on a vehicle floor, and a seat is moved in the front-rear direction by relative movement of the fixed rail and the movable rail. And a slide mechanism that prohibits relative movement of the fixed rail and the movable rail by moving the slide lock to the slide lock position, and is rotatably supported on the same shaft as the ratchet. an operation portion for releasing the engagement between the striker and the ratchet, in conjunction with movement of the release direction of the operating unit, because with the slide lock release inhibiting means for holding the slide lock in the slide lock position, the apparatus Is easy, and has an excellent effect of improving the operability when the seat is detached from the vehicle body or in a tumble state.
[0056]
According to a second aspect of the present invention, in the vehicle seat device according to the first aspect, the slide lock release prohibiting means holds the slide lock at the slide lock position in conjunction with the movement of the operation portion in the release direction. Since the contact means moves to the position, the apparatus is simple, and the operability when the seat is detached from the vehicle body or tumbled can be improved.
[0057]
According to a third aspect of the present invention, in the vehicle seat device according to the second aspect, in addition to the effect according to the second aspect, the abutment means is a protrusion provided on a component part of the seat lock mechanism. It has an excellent effect that it can be applied to a seat in which the slide lock position and the seat lock mechanism are close to each other.
[0058]
According to a fourth aspect of the present invention, in the vehicle seat device according to the third aspect, since the projecting portion is provided in the operation portion, in addition to the effect of the third aspect, the slide lock position and It has an excellent effect that it can be applied to a seat that is close to the operation unit in the seat lock mechanism.
[0059]
According to a fifth aspect of the present invention, in the vehicle seat device according to the second aspect, the contact means is a link member that interlocks with the operation portion and holds the slide lock in a slide lock position. In addition to the effect described in 2, it has an excellent effect that it can be applied to a sheet in which the slide lock position and the operation unit are separated.
[Brief description of the drawings]
FIG. 1 is a side sectional view showing a rear portion of a vehicle seat device according to a first embodiment of the present invention.
FIG. 2 is a cross-sectional view taken along line 2-2 of FIG.
FIG. 3 is a side sectional view showing a front portion of the vehicle seat device according to the first embodiment of the present invention.
4 is a cross-sectional view taken along line 4-4 of FIG.
FIG. 5 is a perspective view showing a seat to which the vehicle seat device according to the first embodiment of the present invention is applied.
FIG. 6 is a side sectional view showing a rear portion of a vehicle seat device according to a second embodiment of the present invention.
FIG. 7 is a side sectional view showing a rear portion of a vehicle seat device according to a third embodiment of the present invention.
FIG. 8 is a cross-sectional view corresponding to FIG. 4, showing a front portion of a vehicle seat device according to another embodiment of the present invention.
FIG. 9 is a cross-sectional view corresponding to FIG. 4 showing a front portion of a vehicle seat device according to another embodiment of the present invention.
FIG. 10 is a perspective view showing a conventional vehicle seat device.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Vehicle seat 12 Floor part 14 Front leg striker 14C Front leg striker small diameter part 14D Front leg striker taper part 14E Front leg striker taper part 16 Rear leg striker 22 Slide mechanism 24 Movable rail 26 Fixed rail 30 Slide lock lever 30B Slide lock 34 Lock hole 36 Lock hole 42 Ratchet 48 Pole (component of seat lock mechanism)
52 Lock bracket (operating part of the seat lock mechanism)
52C Protruding part (slide lock release prohibiting means, contact means)
70 Base plate 74 Tumble lock (lock plate)
74B Tapered portion 86 of tumble lock Protruding portion (slide lock release prohibiting means, contact means)
88 Link bracket (slide lock release prohibiting means, contact means, link member)

Claims (5)

A seat lock mechanism for engaging the ratchet with a striker disposed on the floor of the vehicle body and fixing the seat;
A vehicle seat device having a slide mechanism that moves the seat in the front-rear direction by relative movement between the fixed rail and the movable rail, and prohibits relative movement between the fixed rail and the movable rail by setting the slide lock to the slide lock position. Because
An operation portion rotatably supported on the same shaft as the ratchet, and for releasing the engagement between the striker and the ratchet;
In conjunction with the movement of the operation unit in the release direction, slide lock release prohibiting means for holding the slide lock in a slide lock position ;
A vehicle seat device comprising: 2. The slide lock release prohibiting means is a contact means that moves to a position that holds the slide lock at a slide lock position in conjunction with movement of the operation portion in the release direction. Vehicle seat device. The vehicle seat device according to claim 2, wherein the contact means is a protrusion provided on a component of the seat lock mechanism. The vehicle seat device according to claim 3, wherein the contact means is provided in the operation portion. The vehicle seat device according to claim 2, wherein the contact means is a link member that interlocks with the operation portion and holds the slide lock at a slide lock position .

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