JP5861470B2 - Vehicle seat - Google Patents

Description

  The present invention relates to a vehicle seat installed in a vehicle such as an automobile, and more particularly to a vehicle seat including a slide lock device.

  2. Description of the Related Art A vehicle seat installed in a vehicle such as an automobile is known that includes a slide rail so as to be slidable along the vehicle traveling direction. The slide rail includes a lower rail fixed to the vehicle floor and an upper rail that slides relative to the lower rail. A seat body is fixedly installed on the upper rail, and the seat body is slid by sliding relative to the lower rail. In such a slide rail, a slide lock device is provided so as to fix the seat body at an arbitrary slide position. The slide lock device has an engaging claw that integrally engages the lower rail and the upper rail. The engaging claw disables the relative sliding of the upper rail with respect to the lower rail, and allows the seat body to slide freely. It fixes in a position (for example, refer patent document 1).

JP 2001-47897 A

By the way, the above-described vehicle seat is configured so as to mitigate the impact caused by the collision with the occupant in the case of a collision from the rear side of the vehicle (hereinafter referred to as “vehicle rear collision”). There is a request to make it. In the technique disclosed in Patent Document 1 described above, in order to meet such a demand, the vehicle seat disclosed in Patent Document 1 described above cannot be used until then when it is collided from the rear side of the vehicle. The slide lock device is unlocked so that the upper rail can slide relative to the lower rail.
However, when the lock of the slide lock device is simply released, the slide length of the upper rail with respect to the lower rail is increased to a length that is not related to impact relaxation. If it does so, it will be troublesome because it will take time to return the vehicle seat slid so long to the original position.

  The present invention has been made in view of such circumstances, and the problem to be solved by the present invention is to respond to the impact of a vehicle collision when a vehicle crash occurs in a vehicle seat having a slide lock device. The vehicle seat can be slid to reduce the impact. At this time, the length of the vehicle seat slide is long enough to obtain an impact reduction effect and is not wasteful. There is to keep in length.

In solving the above-described problems, the vehicle seat according to the present invention takes the following means.
A vehicle seat according to a first aspect of the present invention is a vehicle seat installed in a vehicle compartment via a slide rail fixedly installed on a vehicle floor of the vehicle, and the slide rail is installed on the vehicle floor. A lower rail that is fixedly installed; an upper rail that is slidable relative to the lower rail and in which a seat body is fixedly installed; and a slide lock device that disables relative sliding of the upper rail with respect to the lower rail. The slide lock device regulates sliding of the upper rail with respect to the lower rail by collectively fitting to both a lower engagement hole provided in the lower rail and an upper engagement hole provided in the upper rail. The lower engaging hole and the movable member are provided with an engaging claw and movable according to the collision behavior of the vehicle. In the fitting relationship of the engaging claws that are fitted together with the upper engaging hole, a space is formed in which the upper rail can be moved in the sliding direction with respect to the lower rail. And

  According to the vehicle seat pertaining to the first aspect of the invention, the slide lock device causes the engaging claws to be fitted together in both the lower engaging hole provided in the lower rail and the upper engaging hole provided in the upper rail. Thus, since the sliding of the upper rail with respect to the lower rail is restricted, the seat body can be relatively fixed with respect to the vehicle floor. Here, according to the vehicle seat pertaining to the first aspect of the present invention, the engagement that fits together in both the lower engagement hole and the upper engagement hole by the movable means that moves according to the collision behavior of the vehicle. A space in which the upper rail can be moved in the sliding direction with respect to the lower rail is formed in the fitting relationship of the claws. Thus, by receiving the inertial force due to the collision behavior, the upper rail can be moved in the sliding direction with respect to the lower rail, and the impact due to the collision can be mitigated. Here, the movement of the upper rail in the sliding direction with respect to the lower rail is set in a space formed between the engagement holes and the engagement claws. Therefore, in the case of a vehicle collision (rear vehicle collision), the vehicle seat is slidable, and the space provided in the engagement hole is related to the slide length of the slidable vehicle seat. Can be set to length. In other words, while the vehicle seat can be slidable according to the impact of the vehicle collision in the event of a vehicle collision, the impact can be reduced, and the length of the vehicle seat slide at this time can be reduced The length is sufficient to obtain the effect and can be suppressed to a length that does not waste.

A vehicle seat according to a second aspect of the invention is the vehicle seat according to the first aspect of the invention, wherein the engaging claw has a structure divided in parallel in the sliding direction of the upper rail with respect to the lower rail. A part of the divided claws of the engaging claw is engaged with both the lower engaging hole and the upper engaging hole by the movable means in a lump. A space that allows the upper rail to move in the sliding direction with respect to the lower rail is formed by retreating from both the joint hole and the upper engagement hole so as to retreat to a non-fitted state. It is characterized by.
According to the vehicle seat pertaining to the second aspect of the invention, the engaging claws are formed to have a structure that is divided in parallel in the sliding direction of the upper rail with respect to the lower rail, and a part of the divided claws of the engaging claws It is possible to move the body in the sliding direction of the upper rail with respect to the lower rail by moving the body so that it is retracted from both the lower engagement hole and the upper engagement hole by the movable means. A simple space. As a result, it is possible to form a space in which the engaging claw can be moved in the sliding direction of the upper rail relative to the lower rail simply by changing the configuration of the engaging claw, and the slide lock can be used while using the previous configuration The apparatus can be configured, and the configuration can be simplified.

According to the vehicle seat of the first aspect of the present invention, the vehicle seat can be slidable in accordance with the impact of the vehicle collision when the vehicle collides, and the impact can be reduced. The length of the slide of the sheet can be suppressed to a length that can sufficiently obtain an impact mitigating effect and is not wasted.
According to the vehicle seat pertaining to the second aspect of the invention, the slide lock device can be configured while using the conventional configuration, and the configuration can be simplified.

It is a side view showing typically the outline of the vehicular seat installed in vehicles. It is a perspective view of the slide rail in a locked state. It is a perspective view of the slide rail in the unlocked state. It is a perspective view of the slide rail which is in a lock collision release state. It is sectional drawing of the slide rail which shows the VV cross-section arrow of FIG. It is sectional drawing of the slide rail which shows the VI-VI sectional arrow of FIG. It is sectional drawing of the slide rail which shows the VII-VII sectional arrow of FIG. It is an enlarged front view of the engagement hole schematically showing the engagement of the engagement claw with the engagement hole. It is a side view which shows typically the movable mechanism before a movement in a fitting state. It is a side view which shows typically the movable mechanism which will be in a non-fitting state.

Hereinafter, the form for carrying out the vehicular seat concerning the present invention is explained. In addition, in order to make the following description easy to understand, as described in FIG. 1, up and down and front and rear are defined along the vehicle traveling direction.
FIG. 1 is a side view schematically showing an outline of a vehicle seat 20 installed in the vehicle 10. As shown in FIG. 1, a vehicle seat 20 is installed in the vehicle 10. The vehicle seat 20 is installed in a room of the vehicle 10 via a slide rail 30 fixedly installed on the vehicle floor 11. That is, the vehicle seat 20 includes a slide rail 30 fixedly installed on the vehicle floor 11 and a seat body 21 fixedly installed on the vehicle floor 11 via the slide rail 30. The seat body 21 includes a seat frame (not shown) that forms a seat skeleton. That is, the seat body 21 includes a seat cushion 23, a seat back 25, and a headrest 27. When the slide rail 30 is fixedly installed on the vehicle floor 11, the slide rail 30 is fixedly installed on the vehicle floor 11 via the leg members 15.

Next, the slide rail 30 will be described with reference to FIGS. 2 to 7, illustration of the vehicle floor 11 and the seat main body 21 is omitted for easy understanding of the slide rail 30.
2 to 4 are perspective views of the slide rail 30, and FIGS. 5 to 7 are cross-sectional views of the slide rail 30. Moreover, FIG. 2 and FIG. 5 (VV cross-sectional arrow view of FIG. 2) corresponding to each other show the slide rail 30 in the locked state. Further, FIGS. 3 and 6 corresponding to each other (in the direction of the VI-VI cross section in FIG. 3) show the slide rail 30 in the unlocked state. Further, FIGS. 4 and 7 corresponding to each other (in the direction of the arrow VII-VII in FIG. 4) show the slide rail 30 in a lock collision release state. In addition, in the perspective view shown in FIGS. 2-4, in order to make the engagement of the slide lock apparatus 61 easy to see, it has shown in figure with the dashed-dotted line.
As shown in FIGS. 2 and 5, the slide rail 30 generally includes a lower rail 31, an upper rail 41, and a slide lock device 61. A leg member 15 is spot-welded to the lower rail 31 as shown in FIG. The leg member 15 is bolted to the vehicle floor 11, and the lower rail 31 is fixedly installed on the vehicle floor 11. A seat frame (not shown) is spot welded to the upper rail 41. The seat frame forms a skeleton of the seat body 21 including the seat cushion 23, the seat back 25, and the headrest 27. For this reason, when the upper rail 41 slides relative to the lower rail 31, the seat body 21 integrated with the upper rail 41 is slid relative to the vehicle floor 11.

Hereinafter, the lower rail 31, the upper rail 41, and the slide lock device 61 constituting the slide rail 30 will be described in detail.
As shown in the perspective views of FIGS. 2 to 4 and the cross-sectional views of FIGS. 5 to 7, the lower rail 31 has a shape bent into a substantially U shape. The lower rail 31 is formed with a fitting portion 33 for inserting the fitting insertion portions 45 and 55 of the upper rail 41. The fitting portion 33 of the lower rail 31 has a function of guiding the sliding of the upper rail 41, and slidably receives the fitting insertion portions 45 and 55 of the upper rail 41. Further, the lower rail 31 is provided with a lower engagement hole 35 for engaging the engagement claws 65 and 75 of the slide lock device 61 as shown in FIG. A plurality of the lower engagement holes 35 are provided in the inner wall 34 of the fitting portion 33 of the lower rail 31 at a pitch corresponding to the engagement claws 65 and 75 along the extending direction of the lower rail 31. The upper rail 41 joins the 1st upper rail member 43 and the 2nd upper rail member 53 which have the shape bent appropriately, as shown in the perspective view of FIGS. 2-4, and sectional drawing of FIGS. 5-7. It is formed by. Both the first upper rail member 43 and the second upper rail member 53 thus joined are formed by appropriately bending the fitting insertion portions 45 and 55 to be inserted into the fitting portion 33 of the lower rail 31 described above.

  Further, the first upper rail member 43 is provided with a shaft support portion 46 for disposing a slide lock device 61 described later. Further, the first upper rail member 43 is provided with an upper engagement hole 48 into which engagement claws 65 and 75 of the slide lock device 61 described later are fitted. The upper engagement hole 48 faces the lower engagement hole 35 of the lower rail 31 and has the same shape as the lower engagement hole 35. Specifically, as shown in the cross-sectional views of FIGS. 5 to 7, the upper engagement hole 48 is paired with both side walls 47 sandwiched facing the inner wall 34 of the fitting portion 33 of the lower rail 31. It is provided one by one. That is, the upper engaging holes 48 are also provided in a number corresponding to the engaging claws 65 and 75 along the extending direction of the upper rail 41, similarly to the lower engaging holes 35. The lower engagement hole 35 and the upper engagement hole 48 provided in this way are formed to have an opening shape that completely overlaps each other. As shown in the cross-sectional views of FIGS. 5 to 7, the first claw body 62 and the second claw body 72 of the slide lock device 61 are moved into and out of the first upper rail member 43 and the second upper rail member 53. Openings 49 and 59 that can be opened are provided.

As shown in the sectional views of FIGS. 5 to 7, the slide lock device 61 is fitted into both the lower engagement hole 35 provided in the lower rail 31 and the upper engagement hole 48 provided in the upper rail 41. Engaging engagement claws 65 and 75 are provided. The engaging claws 65 and 75 have a function of restricting the sliding of the upper rail 41 with respect to the lower rail 31 by being collectively fitted into the lower engaging hole 35 and the upper engaging hole 48. In other words, as will be described later, the engaging claws 65 and 75 restrict the movement in the sliding direction by fitting together with the lower engaging hole 35 and the upper engaging hole 48 without any gap in the sliding direction. .
The slide lock device 61 is roughly supported by a first claw body 62 having a first engagement claw 65, a second claw body 72 having a second engagement claw 75, and the shaft support portion 46 described above. And a common pivot shaft 80.

The first claw body 62 and the second claw body 72 that are pivotally supported by one common pivot shaft 80 are configured as separate members. Here, the first claw body 62 and the second claw body 72 are supported by a single pivot shaft 80 so as to be separated from each other and pivotable. The common rotation shaft 80 that rotatably supports the first claw body 62 and the second claw body 72 is supported by the shaft support portion 46 provided in the first upper rail member 43 described above. .
Here, the 1st nail | claw body 62 is formed in the shaft support part 63 which penetrates the common rotation axis | shaft 80, the extended plate part 64 extended from this support part 63, and the front side of this extended plate part. First engaging claws 65. Further, the tip portion 66 of the first engagement claw 65 is set in a claw shape that is appropriately bent so as to be fitted into both the lower engagement hole 35 and the upper engagement hole 48.
The second nail body 72 is formed in the same manner as the first nail body 62. That is, the second claw body 72 is formed on a shaft support portion 73 that passes through the common rotation shaft 80, an extension plate portion 74 that extends from the shaft support portion 73, and the front side of the extension plate portion 74. Second engaging claws 75. The tip portion 76 of the second engagement claw 75 is set in a claw shape that is appropriately bent so as to be fitted into both the lower engagement hole 35 and the upper engagement hole 48.

  FIG. 8 is an enlarged view of the engagement holes 35 and 48 schematically showing the fitting of the first engagement claw 65 and the second engagement claw 75 with respect to both the lower engagement hole 35 and the upper engagement hole 48. It is a front view. As shown in FIG. 8, the tip portion 66 of the first engagement claw 65 and the tip portion 76 of the second engagement claw 75 are set to have the same shape and size, and the sliding direction (the front-rear direction shown in the figure). ) To be placed adjacent to each other. Further, the distal end portion 76 of the second engagement claw 75 is set so as to be arranged behind the distal end portion 66 of the first engagement claw 65 in the sliding direction (the front-rear direction in the drawing). When the lower engagement hole 35 and the upper engagement hole 48 are in communication with each other, the distal end portion 66 of the first engagement pawl 65 and the distal end portion 76 of the second engagement pawl 75 are connected to the lower engagement hole 35. And the upper engagement hole 48. For this reason, the tip portion 66 of the first engagement claw 65 and the tip portion 76 of the second engagement claw 75 are each fitted into the lower engagement hole 35 and the upper engagement hole 48 in this way. The engaging claws are formed at adjacent positions so as to be equally divided in parallel in the sliding direction. The length of the lower engagement hole 35 and the upper engagement hole 48 in the sliding direction (the front-rear direction in the drawing) is set to about 2 to 3 cm. On the other hand, the sliding direction (illustrated) of the first engaging claw 65 and the second engaging claw 75 is formed at adjacent positions so that one engaging claw is equally divided in parallel in the sliding direction. The length in the front-rear direction is set to about 1 to 1.5 cm.

The distal end portion 66 of the first engaging claw 65 and the distal end portion 76 of the second engaging claw 75 described above are connected to one lower engaging hole 35 and upper engaging hole 48 as follows. By fitting, the following functions are achieved.
That is, as shown in FIGS. 2 and 5, the first engagement claw 65 and the second claw body 72 of the first claw body 62 with respect to both the lower engagement hole 35 and the upper engagement hole 48 described above. When both the second engaging claws 75 are fitted together, the sliding of the upper rail 41 with respect to the lower rail 31 is restricted. The state shown in FIGS. 2 and 5 is a case where the first nail body 62 and the second nail body 72 described above are in a normal state. At this time, the front end portion 66 of the first engagement claw 65 and the front end portion 76 of the second engagement claw 75 are fitted into the lower engagement hole 35 and the upper engagement hole 48 by a biasing member (not shown). It is so energized. That is, as shown in FIG. 8, the first engagement claw 65 and the second engagement claw 75 are fitted together into the lower engagement hole 35 and the upper engagement hole 48 without gaps in the sliding direction. To regulate the movement in the sliding direction.
On the other hand, as shown in FIGS. 3 and 6, the first engagement claw 65 and the second engagement claw 65 of the first claw body 62 with respect to both the lower engagement hole 35 and the upper engagement hole 48 described above. When the two engaging claws 75 of the claw body 72 are not engaged together, the upper rail 41 can be slid relative to the lower rail 31. In addition, the state shown in FIGS. 3 and 6 is a case where a release operation is performed by a slide lock release lever (not shown). At this time, the release operation of the slide lock release lever (not shown) overcomes the urging force of the urging member (not shown) and enters the state shown in the figure.

  Further, as shown in FIGS. 4 and 7, the first engagement claw 65 of the first claw body 62 is fitted to both the lower engagement hole 35 and the upper engagement hole 48, and the first engagement When the second engagement claw 75 of the two claw body 72 is not fitted, the upper rail 41 is slid relative to the lower rail 31 only by the second engagement claw 75 portion of the second claw body 72 that is not fitted. be able to. That is, as shown in FIG. 8, the space S formed when the second engagement claw 75 of the second claw body 72 is disengaged has the upper rail in the sliding direction with respect to the lower rail according to the present invention. It corresponds to a space that can be moved. In addition, the space S in which only the second engagement claw 75 portion of the second claw body 72 can be slid is an engagement claw that fits together in both the lower engagement hole 35 and the upper engagement hole 48. In the fitting relationship between 65 and 75, this corresponds to a space in which the upper rail 41 can slide rearward with respect to the lower rail 31. As described above, the upper rail 41 can be slid with respect to the lower rail 31 with respect to the portion of the space S formed by the second engagement claw 75 that is not fitted. Incidentally, the length of the space S in the sliding direction (the front-rear direction in the figure) is the same as the length of the second engaging claw 75 in the sliding direction (the front-rear direction in the figure), and is set to about 1 to 1.5 cm. Yes.

By the way, when the first engagement claw 65 of the first claw body 62 is fitted and the second engagement claw 75 of the second claw body 72 is not fitted, the first claw body 62 moves according to the collision behavior of the vehicle. This is done by the movable mechanism 90. 9 and 10 are side views schematically showing a movable mechanism 90 corresponding to the movable means according to the present invention.
The movable mechanism 90 moves the second engagement claw 75 of the second claw body 72 of the slide lock device 61 from fitting to non-fitting according to the collision behavior of the vehicle 10. FIG. 9 schematically shows the movable mechanism 90 before moving with the second engaging claw 75 in a fitted state. On the other hand, FIG. 10 schematically shows a movable mechanism 90 in which the second engagement claw 75 is movable from fitting to non-fitting according to the collision behavior.
The movable mechanism 90 shown in FIG. 9 and FIG. 10 includes the above-described second engagement claw 75 that is collectively fitted into both the lower engagement hole 35 and the upper engagement hole 48, and the lower engagement hole 35 and the upper engagement hole 48. It is a mechanism that functions to move so as to retreat from the engagement hole 48 to a non-fitted state. Here, when the second engagement claw 75 is retracted from both the lower engagement hole 35 and the upper engagement hole 48 into a non-fitted state, the movable mechanism 90 responds to the collision behavior of the vehicle 10. It has become a thing.

That is, the movable mechanism 90 functions to move the second engagement claw 75 from the fitted state to the unfitted state by the tilting of the vehicle seat 20 that causes the collision behavior of the vehicle 10. That is, the movable mechanism 90 is connected to the front link 93 and the rear link 94 connected to the seat frame 91 of the seat cushion 23 described above, and the front link 93 disposed on the front side of the front link 93 and the rear link 94. And an interlocking link 95 to be attached. The front side link 93 is set so as to be capable of rotational displacement by being rotatably supported. This rotational displacement of the front link 93 corresponds to the collision behavior according to the present invention, which is a behavior corresponding to the collision of the vehicle 10. Specifically, when the vehicle 10 collides, the front link 93 is rotationally displaced by the inertial force of the seated person seated on the vehicle seat 20. In other words, until the vehicle 10 collides, the front side link 93 does not become the rotationally displaced state shown in FIG. 10 (the state due to the collision behavior) but continues to maintain the normal position shown in FIG.
Here, one end 952 of the interlocking link 95 is attached to the front link 93. The interlocking link 95 is a link for moving the second engaging claw 75 from fitting to non-fitting according to the rotational displacement of the front side link 93. Specifically, the interlocking link 95 is pivotally supported by the intermediate portion 951, one end 952 is attached to the front link 93, and the other end 953 is attached to the second claw body 72. In this way, when the front link 93 is rotationally displaced from the state shown in FIG. 9 to the state shown in FIG. 10, the second claw body 72 is moved via the interlocking link 95. The movable second claw 72 can move the second engagement claw 75 that has been fitted in both the lower engagement hole 35 and the upper engagement hole 48 from the fitting to the non-fitting. Let That is, the movable mechanism 90 engages the lower engagement according to the collision behavior of the vehicle 10 from the state in which the second engagement claw 75 is collectively fitted to both the lower engagement hole 35 and the upper engagement hole 48. A space S in which the upper rail 41 can be moved in the sliding direction with respect to the lower rail 31 by moving so as to be retracted from both the hole 35 and the upper engagement hole 48 into a non-fitted state (see FIG. 8). ).

  According to the vehicle seat 20 configured as described above, the following operational effects can be obtained. That is, according to the above-described vehicle seat 20, the slide lock device 61 collectively engages with both the lower engagement hole 35 provided in the lower rail 31 and the upper engagement hole 48 provided in the upper rail 41. , 75 are fitted to restrict the sliding of the upper rail 41 with respect to the lower rail 31, so that the seat body 21 can be relatively fixed to the vehicle floor 11. Here, according to the vehicle seat 20, the engaging claws that are fitted together in both the lower engaging hole 35 and the upper engaging hole 48 by the movable mechanism 90 that is movable according to the collision behavior of the vehicle 10. In the fitting relationship between 65 and 75, a space S in which the upper rail 41 can be moved in the sliding direction with respect to the lower rail 31 is formed. Thus, by receiving the inertial force due to the collision behavior, the upper rail 41 can be moved in the sliding direction with respect to the lower rail 31, and the impact due to the collision can be reduced. Here, the movement of the upper rail 41 in the sliding direction with respect to the lower rail 31 is set in a space S formed between the engagement holes 35 and 48 and the engagement claws 65 and 75. That is, when the rear side of the vehicle 10 is collided (rear collision), the vehicle seat 20 is allowed to slide, and the engagement holes 35, The length of the space S provided in 48 can be set. That is, while the vehicle seat 20 can be slidable and the impact can be reduced according to the impact of the vehicle collision when the vehicle collides, the length of the slide of the vehicle seat 20 at this time is the impact The length is such that the effect of relaxation is sufficiently obtained and can be suppressed to a length of 2 to 3 cm or less without waste.

  Further, according to the vehicle seat 20 described above, the first engagement claw 65 and the second engagement claw 75 are formed to have a structure that is divided in parallel in the sliding direction of the upper rail 41 with respect to the lower rail 31. Here, the second claw body 72 having the second engagement claw 75 is retracted from the lower engagement hole 35 and the upper engagement hole 48 into the non-fitted state by the movable mechanism 90. By moving, the space S in which the first engagement claw 65 can be moved in the sliding direction of the upper rail 48 with respect to the lower rail 31 is formed. Thus, a space S in which the first engagement claw 65 can be moved in the sliding direction of the upper rail 41 with respect to the lower rail 31 can be formed only by changing the configuration of the engagement claws 65 and 75. The slide lock device 61 can be configured while using the conventional configuration, and the configuration can be simplified.

In addition, in the vehicle seat which concerns on this invention, it is not limited to above-described embodiment, It may be comprised by changing a location suitably.
That is, the vehicle seat 20 according to the above-described embodiment is configured by being divided by the first engagement claw 65 and the second engagement claw 75, and the second engagement claw 75 is in a fitted state. By shifting to the non-fitted state, a space S in which the first engagement claw 65 can be moved is formed. However, in forming the space in which the upper rail can be moved in the sliding direction with respect to the lower rail according to the present invention, it may be formed by enlarging the engagement hole.
Further, the configuration of the movable means according to the present invention is not limited to the example of the movable mechanism 90 described above, but by a suitable actuator that detects the collision behavior of the vehicle by a suitable sensor and is activated by the detection of this sensor. It may be movable. Further, in moving the second engagement claw 75 so as to be retracted to the non-fitted state, the second engagement claw 75 is not limited to the above-described movement by the movable mechanism 90. For example, the second engagement claw 75 may be bent and moved so as to be retracted into the non-fitted state. Further, the collision behavior of the vehicle may be detected by utilizing the inertial force in the vehicle interior, or may be detected by the external load itself. A detection configuration can be utilized.

DESCRIPTION OF SYMBOLS 10 Vehicle 11 Vehicle floor 15 Leg member 20 Vehicle seat 21 Seat main body 23 Seat cushion 25 Seat back 27 Headrest 30 Slide rail 31 Lower rail 33 Insertion part 34 Inner side wall 35 Lower engagement hole 41 Upper rail 43 First upper rail member 45 Insertion part 46 Shaft support portion 47 Side wall 48 Upper engagement hole 49 Opening portion 53 Second upper rail member 55 Fitting insertion portion 59 Opening portion 61 Slide lock device 62 First claw body 63 Shaft support portion 64 Extension plate portion 65 First engagement claw 66 First engagement claw tip portion 72 Second claw body 73 Axle support portion 74 Extension plate portion 75 Second engagement claw 76 Second engagement claw tip portion 80 Common rotating shaft 90 Movable mechanism (movable means)
91 seat frame 93 front link 94 rear link 95 interlocking link 951 middle portion of interlocking link 952 one end of interlocking link 953 other end of interlocking link S space that can be moved in slide direction

Claims (2)

A vehicle seat installed in a vehicle compartment via a slide rail fixedly installed on the vehicle floor of the vehicle,
The slide rail includes a lower rail fixedly installed on the vehicle floor, an upper rail that is slidable relative to the lower rail and a seat body is fixedly installed, and a relative slide of the upper rail with respect to the lower rail. A slide lock device for disabling,
The slide lock device is an engagement that regulates sliding of the upper rail with respect to the lower rail by collectively fitting into both a lower engagement hole provided in the lower rail and an upper engagement hole provided in the upper rail. With nails,
The engaging claw that is fitted together into both the lower engaging hole and the upper engaging hole by a movable means that moves according to the collision behavior of the vehicle collectively includes the engaging claw of the engaging claw. A space in which the upper rail can be moved in the sliding direction with respect to the lower rail while at least a part thereof is fitted in the engagement holes of the lower engagement hole and the upper engagement hole. The lower engagement hole and the upper engagement hole are formed inside the engagement holes ,
The vehicle seat according to claim 1, wherein an impact mitigating effect on the seat body side supported by the upper rail is obtained by the upper rail moving in the space relative to the lower rail by the collision behavior . The vehicle seat according to claim 1,
The engaging claw is formed to have a structure divided in parallel in the sliding direction of the upper rail with respect to the lower rail,
From the state in which a part of the claws of the engagement claws are collectively fitted to both the lower engagement holes and the upper engagement holes by the movable means, the lower engagement holes It moves so that it may be retracted from both of the upper engagement holes to a non-fitted state to form a space in which the upper rail can be moved in the sliding direction with respect to the lower rail. Vehicle seat to be used.

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