JP4678674B2 - Vehicle driver's seat - Google Patents

Description

  The present invention relates to a vehicle driver's seat including a seat body and a seat moving device that movably supports the seat body from a driver seat position on a vehicle floor to a passenger seat side position.

Various things are proposed about the above-mentioned driver's seat for vehicles.
For example, as shown in FIG. 10, a driver's seat 100 for a vehicle described in Patent Document 1 slides the seat body 102 at the driver's seat position to the passenger's seat side, and the driver's seat on the passenger's seat side, which is the sidewalk side. It is configured to be able to get on and off while seated on the seat body 102.
For this reason, the vehicle driver's seat 100 includes a seat moving device 103 that slides the seat body 102 between the driver's seat and the passenger's seat on the vehicle floor. The seat moving device 103 has a lateral movement by a screwing action of a screw shaft 106 supported by a bearing (not shown) on the vehicle floor side and a nut 107 provided on a carriage-like lateral movement table 104 having wheels 104t. In this configuration, the moving table 104 is moved laterally along the screw shaft 106.

JP 2004-196129 A

  For example, if a forward load is applied to the seat main body 102 when the vehicle collides, in the above-described driver's seat 100 for a vehicle, the seat main body 102 has bearings and screws positioned between the lateral movement table 104 and the vehicle floor. It is supported by a shaft 106 and a nut 107. For this reason, it is necessary to manufacture the bearing and the screw shaft 106 and the nut 107 with a strength capable of withstanding a collision load, and the seat moving device 103 becomes large.

  The present invention has been made to solve the above-mentioned problems, and the problem to be solved by the present invention is to provide a vehicle seat for a vehicle by providing a dedicated collision safety mechanism separately from the seat moving device. It is to make it compact overall.

The above-described problems are solved by the inventions of the claims.
The invention according to claim 1 is a vehicle driver's seat including a seat body, and a seat moving device that supports the seat body so as to be movable from a driver seat position on the vehicle floor to a passenger seat side position. A moving device, comprising: a floor side member fixed to the vehicle floor ; and a seat side member coupled to the floor side member via a sliding means so as to be laterally movable and fixed to the seat body side, The seat body includes a first engagement portion provided on the seat side member and a first engaged member provided on the floor side member between the seat side member and the floor side member. The first engaging portion is disposed behind the first engaged portion in accordance with the movement toward the driver seat position side, and the first load is applied when a forward load is applied to the seat body in this state. For engagement between the engaging portion and the first engaged portion Ri wherein is provided with movement restricting means before prevented from moving forward the seat side member is relative to the floor side member, between the floor side member and the seat member, to the seat-side member A second engaging portion provided on the floor side member, and the second engaging portion is moved to the driver seat position side of the seat body. 2 is disposed below the engaged portion, and when an upward load is applied to the seat body in this state, the seat side member is engaged by the engagement of the second engaging portion and the second engaged portion. Is provided with an upward movement restricting means for preventing the sheet side member from moving upward with respect to the floor side member. With respect to the front and rear slide mechanism At least the outer side in the vehicle width direction, wherein are pre-movement restricting means is an arrangement for the longitudinal sliding mechanism, the inner side in the vehicle width direction, wherein the movement restricting means is arrangement It is characterized by that.

According to the present invention, since the front movement restricting means is provided, when a forward load is applied to the seat body when the seat body is on the driver seat position side, the first engaging portion and the first engaged portion are provided. The forward movement of the seat side member relative to the floor side member is prohibited by the engagement with the portion. For this reason, the movement of the seat body in the forward direction is restricted, and the safety of the passenger sitting on the seat body is ensured.
In addition, since the first engaging portion is disposed behind the first engaged portion when the seat body moves laterally toward the driver's seat position, the first engaging portion and the first engaged portion are The lateral movement of the seat body is not hindered.
As described above, since the dedicated first engaging portion and the first engaged portion are provided separately from the slide means for moving the seat body in the lateral direction, it is necessary to increase the strength of the slide means more than necessary. Thus, the driver's seat for the vehicle can be made compact overall.

Further, since the upward movement restricting means is provided, even when an upward load (lifting up) is applied to the seat body when the seat body is on the driver seat position side, 2. The upward movement of the seat side member relative to the floor side member is prohibited by engagement with the engaged portion. For this reason, the upward movement of the seat body is restricted, and the safety of the passenger sitting on the seat body is ensured.
When the seat body moves laterally toward the driver seat position, the second engaging portion is disposed below the second engaged portion, so that the second engaging portion and the second engaged portion are seated. Does not interfere with the lateral movement of the main body.

According to the invention of claim 2, the sheet moving device is provided with a pre-post-sliding device, the driver's seat position, after the sheet body was lateral movement from the passenger's seat side position to the driver's seat position, be before movement The engagement member that moves in the front-rear direction in conjunction with the movement of the seat body in the front-rear direction is provided on the seat-side member, and the first engagement portion is provided on the engagement member. The first engagement portion is disposed behind the first engaged portion by lateral movement of the seat body toward the driver seat position side, and the floor side member It is comprised between the said seat side member by the 3rd engaging part provided in the said engaging member, and the 3rd to-be-engaged part provided in the said floor side member, The said seat main body is forward to a driver's seat position. The third engaged member is moved by the movement of the engaging member when moved. In this state, when a lateral load is applied to the seat body, the seat side member is moved by the engagement of the third engaging portion and the third engaged portion. A lateral movement restricting means for preventing the floor side member from moving laterally is provided.

According to the present invention, since the lateral movement restricting means is provided, when a lateral load is applied to the seat body when the seat body is in the driver's seat position, the third engaging portion and the third engaged portion are provided. The side movement of the seat side member with respect to the floor side member is prohibited by the engagement of the portions. For this reason, the movement of the seat body to the side is restricted, and the safety of the passenger seated on the seat body is ensured.
Further, the third engaging portion is arranged on the side of the third engaged portion by the movement of the engaging member when the seat body moves forward to the driver seat position. For this reason, when the seat body moves laterally toward the driver's seat position, the third engaging portion of the engaging member is not disposed on the side of the third engaged portion, and the third engaging portion The third engaged portion does not hinder the lateral movement of the seat body.

  According to the present invention, since the dedicated first engaging portion and the first engaged portion are provided separately from the sliding means for moving the seat body, it is not necessary to increase the strength of the sliding means more than necessary. The vehicle driver's seat can be made compact overall.

[Embodiment 1]
Hereinafter, based on FIGS. 1 to 9, the vehicle driver's seat according to the first embodiment of the present invention will be described. In the vehicle driver's seat according to the present embodiment, the seat body moves from the driver's seat position in the passenger compartment to the passenger's seat position, and in the passenger's seat position, the seat is horizontally positioned from the seating position facing the front of the vehicle to the boarding / exiting position facing the door opening side. It is a device that can be used as a wheelchair by rotating and being lowered from the vehicle compartment. Here, FIG. 1 is a perspective view of a lateral sliding mechanism for a vehicle driver's seat according to this embodiment, FIG. 2 is a schematic side view of the vehicle driver's seat, and FIG. 3 is a view taken along arrows III-III in FIG. FIG. FIG. 4 is an operation diagram of the elevating mechanism of the vehicle driver's seat. FIG. 5 is a schematic plan view showing the operation of the vehicle driver's seat, and FIGS. 6 to 9 are a side view and a plan view showing the collision safety structure of the vehicle driver's seat.
In addition, the front-back left-right direction and the up-down direction in a figure correspond with the front-back-left-right direction and up-down direction of a vehicle.

<About the outline of the vehicle driver's seat 10>
As shown in FIG. 5A, the vehicle driver's seat 10 according to the present embodiment is configured such that the seat body 12 can be used as a driver's seat of the vehicle M or can be lowered from the vehicle M and used as a wheelchair. Device. The vehicle driver's seat 10 includes a lateral slide mechanism 20 (see FIGS. 1 and 2), a front / rear slide mechanism 30 (see FIG. 3), a rotation mechanism 40 (see FIGS. 2 and 3), an elevating mechanism 50, and The seat body 12 is constituted. Further, the lateral slide mechanism 20 is provided with a collision safety mechanism 60 for the vehicle driver's seat 10.

<About the horizontal slide mechanism 20>
The lateral slide mechanism 20 is a mechanism that moves the seat body 12 and the like in the width direction (lateral direction) between the driver seat position side (right end side) and the passenger seat side (left end side) in the passenger compartment. As shown, a pair of horizontal frames 21 are provided. The pair of horizontal frames 21 are held in parallel at regular intervals by connecting the end portion (right end portion) on the driver's seat position side and the middle portion near the passenger seat (closer to the left end) by the connecting frame 22 respectively. Has been. The horizontal frame 21 is installed on the floor portion FL in the passenger compartment so as to extend in the width direction (left-right direction) of the vehicle M, and support metal fittings 23 are fixed to places on the outer side surface of the horizontal frame 21. The horizontal frame 21 is a groove-shaped frame having a substantially C-shaped cross section, and a slit-shaped opening 21s extending along the longitudinal direction is formed on the upper surface side thereof.

As shown in FIG. 2, a lateral slide rail 25 extending in the longitudinal direction is fixed to the inner center of the lateral frame 21, and a slider 26 extends along the lateral slide rail 25 on the lateral slide rail 25. It is slidably mounted. The slider 26 is fixed to the lower side of the rail-shaped metal part 28 provided before and after the lateral slide member 27 shown in the upper part of FIG. 1 (see FIG. 2).
The lateral slide member 27 is a gantry that supports the seat body 12 via the front / rear slide mechanism 30, the rotation mechanism 40, and the elevating mechanism 50. As shown in FIG. 1, the lateral slide member 27 includes front and rear rail-shaped metal parts 28, a pair of left and right horizontal beam parts 28 c that connect the rail-shaped metal parts 28, and the rail-shaped metal part 28 and the horizontal beam part 28 c. And a support table 29 (see FIGS. 2 and 3) provided on the top.
In FIG. 1, the left lateral beam portion 28 c and the support table portion 29 are omitted except for a part.

The rail-shaped metal part 28 of the lateral slide member 27 is composed of an upper vertical wall part 28t and a lower expanded part 28w. As shown in FIG. 2, the upper vertical wall portion 28 t protrudes upward from the opening 21 s of the horizontal frame 21 in a state where the lower widened portion 28 w of the rail-shaped metal portion 28 is accommodated in the horizontal frame 21. ing. As described above, the slider 26 is fixed to the lower side of the widened portion 28 w of the rail-shaped metal part 28. Further, the horizontal beam portion 28c and the support table portion 29 are fixed to the vertical wall portion 28t of the rail-shaped metal fitting portion 28 protruding from the opening 21s of the horizontal frame 21.
A nut (not shown) of the screw shaft / nut mechanism 24 is attached to the lateral slide member 27. Further, the screw shaft 24z (see FIG. 1) of the screw shaft / nut mechanism 24 is rotatably supported by the bearing portion 22j of the connection frame 22 in a state where the screw shaft 24z (see FIG. 1) is held in parallel to the horizontal frame 21. Further, a lateral slide motor 24m that rotates the screw shaft 24z is connected to one end of the screw shaft 24z.
With the above configuration, when the horizontal slide motor 24m is driven, the horizontal slide member 27 slides along the horizontal frame 21. In FIG. 1, the horizontal slide rail 25 and the slider 26 located inside the horizontal frame 21 are omitted.
That is, the horizontal slide rail 25 and the slider 26 correspond to the slide means of the present invention. Further, the floor portion FL, the horizontal frame 21, and the horizontal slide rail 25 correspond to the floor side member of the present invention, and the slider 26, the horizontal slide member 27, the front / rear slide mechanism 30, the rotation mechanism 40, etc. described later are the present invention. This corresponds to the sheet side member.

<Fore-and-aft slide mechanism 30>
The front / rear slide mechanism 30 is a mechanism for moving the seat body 12 and the like back and forth on the lateral slide member 27 of the lateral slide mechanism 20. As shown in FIG. 3, the front / rear slide mechanism 30 includes a front / rear slide table 32 and a support rail portion 34 that supports the front / rear slide table 32 so as to be slidable in the front / rear direction. The support rail portions 34 are provided on both sides in the width direction (left and right sides) of the front and rear slide table 32. As shown in FIG. 6B and the like, the upper and lower presser plates 34u sandwiching the end edge 32e of the front and rear slide table 32 are provided. , 34d, and the presser plates 34u, 34d and a bearing 34b held between the front and rear slide tables 32.
As shown in FIG. 3, a nut 36 n of a screw shaft / nut mechanism 36 is attached to the lower side of the front / rear slide table 32. The screw shaft 36z (see FIG. 1) of the screw shaft / nut mechanism 36 is rotatably supported by the bearing portion 27j of the lateral slide member 27 while being held in parallel with the support rail portion 34. Further, one end of the screw shaft 36z is connected to a front / rear slide motor 36m that rotates the screw shaft 36z.
With the above configuration, when the lateral slide motor 36m is driven, the front / rear slide table 32 slides back and forth along the support rail portion 34.

<About the rotating mechanism 40>
The rotation mechanism 40 is a mechanism that horizontally rotates the seat body 12 and the lifting mechanism 50 on the front / rear slide table 32 of the front / rear slide mechanism 30 from a seating position facing the front of the vehicle to a boarding / alighting position facing the door opening side. is there. As shown in FIGS. 2 and 3, the rotating mechanism 40 includes an outer ring 41 and an inner ring 43 that are fitted so as to be relatively rotatable with a bearing 42 interposed therebetween. The outer ring 41 is fixed to the front and rear slide table 32. Has been. An elevating mechanism 50 is installed on the inner ring 43.
Further, on the front / rear slide table 32, a turning motor (not shown) for rotating the inner ring 43 with respect to the outer ring 41 of the rotating mechanism 40 is installed.

<About lifting mechanism 50>
As described above, the elevating mechanism 50 is installed on the inner ring 43 of the rotating mechanism 40, and in a state where the seat body 12 is horizontally rotated at the passenger seat position of the vehicle M to the boarding / exiting position facing the door opening side. This is a mechanism for moving the seat body 12 up and down between the boarding position and the ground. In FIGS. 2 and 3, the structure of the lifting mechanism 50 is omitted and represented in a box shape.
As shown in FIG. 4, the elevating mechanism 50 has a main slide mechanism 53 that moves the movable member 53 m on the table 51 in the vehicle width direction of the vehicle M (the left-right direction in FIG. 4). A base end portion of a pair of left and right four-bar linkage mechanisms 54 is connected to the movable member 53m of the main slide mechanism 53. The four-bar linkage mechanism 54 includes a support roller (not shown), and the support roller is configured to roll on the guide rail (not shown) of the table 51 in the left-right direction of the vehicle M. The upper surface of the guide rail is an inclined surface (cam surface) such that the tip side becomes lower at the tip portion. Therefore, when the movable member 53m of the main slide mechanism 53 moves leftward on the table 51, the support roller of the four-bar linkage mechanism 54 rolls along the upper surface of the guide rail by the action of the movable member 53m. At the stage where the support roller reaches the cam surface, the four-bar linkage mechanism 54 rotates downward. An auxiliary slide mechanism 52 is connected to the tip of the four-bar linkage mechanism 54, and a sheet connection base 56 on which the seat body 12 is placed is supported on the auxiliary slide mechanism 52. The seat coupling base 56 is configured to be movable in the left-right direction with respect to the distal end portion of the four-bar linkage mechanism 54 by the function of the auxiliary slide mechanism 52.
That is, with the auxiliary slide mechanism 52 moving the seat body 12 and the sheet connection base 56 to the left with respect to the distal end portion of the four-bar linkage mechanism 54, the main slide mechanism 53 has the four-bar link mechanism 54 and the auxiliary slide mechanism. By moving the 52 and the seat connection base 56 to the left, the four-bar linkage mechanism 54 is rotated downward by the weight of the seat body 12 and the seat connection base 56, and the seat body 12 is lowered to the boarding / alighting position.
When the seat body 12 is returned to the passenger seat position of the vehicle M, the main slide mechanism 53 and the auxiliary slide mechanism 52 operate in the opposite direction to the above.
That is, the lateral slide mechanism 20, the front / rear slide mechanism 30, the rotation mechanism 40, and the lifting mechanism 50 correspond to the sheet moving device of the present invention.

<About the sheet body 12>
The seat body 12 is configured to be used as a driver's seat in the passenger compartment and to be used as a wheelchair when the seat body 12 is lowered from the vehicle M.
The seat body 12 includes a seat cushion 12c, a seat back 12b, and a seat holder (not shown) that supports them. On the lower surface of the seat holder, a pair of left and right rear wheels as well as a pair of left and right front wheels are provided symmetrically in a foldable state. In addition, a connection mechanism (not shown) that mechanically and electrically connects the sheet main body 12 and the sheet connection base 56 of the lifting mechanism 50 is provided at the lower front portion of the sheet holder. Further, a battery for supplying power to various electric devices attached to the seat body 12 is mounted on the back surface of the seat cushion 12c.
When the seat body 12 is used as a wheelchair, the connection between the seat body 12 and the seat connection base 56 of the lifting mechanism 50 is released in a state where the pair of left and right front wheels and rear wheels are deployed. When the seat body 12 is used in the passenger compartment, the front wheel and the rear wheel are folded under the seat cushion 12c with the seat body 12 connected to the seat connection base 56 of the lifting mechanism 50. Stored on the side. The seat body 12 is provided with an operation switch (not shown) for the vehicle driver's seat 10.

<About collision safety mechanism 60>
The collision safety mechanism 60 prevents the lateral slide member 27 from moving more than a certain amount in the direction of the collision load from the floor portion FL when a collision load is applied in a state where the seat body 12 is at the driver seat position. This is a mechanism that regulates the movement of the seat body 12 in the direction of the collision load.
As shown in FIG. 1, the collision safety mechanism 60 includes a first hook 61 and a second hook 62 attached to the lateral slide member 27, a first fixed vertical pin 63 provided on the floor portion FL of the passenger compartment, and a first hook. 2 receiving metal fittings 64.
The first hook 61 is a movable hook attached to the right end of the support table portion 29 in the lateral slide member 27. When the lateral slide member 27 slides to the driver seat position side, a two-dot chain line in FIG. As shown by, it is arranged behind the first fixed vertical pin 63.

<About the first hook 61>
As shown in FIGS. 7A and 8, the first hook 61 is a thick plate material having a substantially elliptical shape, and the base end portion of the first hook 61 can be horizontally rotated by the connecting pin 61p. The support table portion 29 of the lateral slide member 27 is connected. Further, the first hook 61 is formed with a substantially U-shaped notch 61 u that can be engaged with the first fixed vertical pin 63 of the floor portion FL from the rear at the front portion near the tip. The notch 61u is engaged with the first fixed vertical pin 63, and as shown in FIG. 8, the first hook 61 and the lateral slide member 27 move in the left direction (refer to the passenger seat direction white arrow). The movement in the forward direction (see the black arrow) can be restricted.
That is, the first hook 61 corresponds to the engagement member of the present invention, and the portion B disposed on the rear side of the first fixed vertical pin 63 in the notch 61u of the first hook 61 is the first engagement of the present invention. The part S arranged on the right side of the first fixed vertical pin 63 corresponds to the third engaging part of the present invention. The rear portion Y of the outer peripheral surface of the first fixed vertical pin 63 corresponds to the first engaged portion of the present invention, and the right portion R of the outer peripheral surface of the first fixed vertical pin 63 is the third covered portion of the present invention. It corresponds to the engaging part. Therefore, the part B of the first hook 61 and the part Y of the first fixed vertical pin 63 correspond to the front movement restricting means of the present invention, and the part S of the first hook 61 and the part R of the first fixed vertical pin 63 Corresponds to the lateral movement restricting means of the present invention.
Here, as described above, the position at which the first hook 61 (notch 61u) engages with the first fixed vertical pin 63 of the floor portion FL is referred to as a restriction position of the first hook 61. The position away from the first fixed vertical pin 63 so that can be slid horizontally is referred to as a non-restricted position of the first hook 61 (see the two-dot chain line in FIG. 7A).

An operating mechanism 70 that horizontally rotates the first hook 61 between the restriction position (solid line position in FIG. 7A) and the non-regulation position (two-dot chain line position) on the support table portion 29 of the lateral slide member 27. Is provided.
The operating mechanism 70 includes a spring 72 that holds the first hook 61 in the restricting position, and a wire member 74 that rotates the first hook 61 to the non-regulating position against the force of the spring 72.
One end of the spring 72 is hung on the spring receiver 72 r of the support table portion 29 provided in front of the first hook 61, and the other end is hung on the spring receiver 61 r of the first hook 61. As a result, the first hook 61 is pulled forward by the force of the spring 72, and the notch 61u is hooked on the first fixed vertical pin 63 from behind.

The wire member 74 of the operating mechanism 70 includes a wire body 74w and a flexible tube 74t that guides the wire body 74w. The wire member 74 is disposed behind the first hook 61 so that the first hook 61 can be pulled backward, and the tube 74t of the wire member 74 is fixed to the support table portion 29 of the lateral slide member 27. Yes. Then, one end of the wire main body 74w of the wire member 74 is hung on the retaining bracket 61w of the first hook 61, and the other end of the wire main body 74w is attached to the front / rear slide table 32 as shown in FIG. It is hung on the provided retaining metal 32w.
For this reason, in the process in which the front / rear slide table 32 is retracted from the driver's seat position to the retreat limit position (side slidable position), the wire body 74w pulls the first hook 61 rearward, and the first hook 61 reaches the non-restricted position. Rotate. When the front / rear slide table 32 moves forward from the retreat limit position (side slidable position) toward the driver seat position, the wire body 74w presses the first hook 61 forward, and the spring 72 moves the first hook 61 forward. Therefore, the first hook 61 rotates to the restriction position.
Thus, when the front / rear slide table 32 is in the retreat limit position, the first hook 61 rotates to the non-restricted position and disengages from the first fixed vertical pin 63, so that the lateral slide member 27 is moved back and forth. The side slide can be performed only when is in the retreat limit position.

<About the 2nd hook 62 and the 2nd metal fitting 64>
As shown in FIG. 1, the second hook 62 is a fixed hook attached to the left end of the support table portion 29 in the lateral slide member 27. The second hook 62 is arranged below the engagement plate portion 64x of the second metal fitting 64 provided on the floor portion FL when the lateral slide member 27 slides to the driver seat position side, and the support table portion 29 is When it is displaced forward and upward by a collision load, it is configured to be able to engage with the engagement plate portion 64x. That is, the second hook 62 can be engaged with the second receiving metal fitting 64 of the floor portion FL on the inner side of the seat body 12.
As shown in FIG. 1, the second metal fitting 64 is formed in a flat box shape, and is fixed to the floor portion FL along the horizontal frame 21. As shown in FIG. 6A, the upper plate 64u of the second metal fitting 64 is inclined so that the front side is slightly lower, and is rectangular along the horizontal frame 21 at a position corresponding to the second hook 62. A notch 64c (see FIG. 1) is formed. For this reason, when the horizontal slide member 27 slides along the horizontal frame 21, the flange portion 62z of the second hook 62 moves in the notch 64c, so that the second hook 62 and the second metal fitting 64 come into contact with each other. There is nothing to do.
Further, the upper plate 64u of the second receiving metal fitting 64 is formed with an engagement plate portion 64x at the right end position of the notch 64c, and the hook end portion 62f of the second hook 62 can be inserted on the right side of the engagement plate portion 64x. An opening 64h having a size is formed.

  As shown in FIGS. 1 and 6, the second hook 62 includes a mounting portion 62 s and a flange portion 62 z that are fixed to the lateral slide member 27. As shown in FIG. 6A, the flange portion 62z has a square front shape, and its width dimension is set to a value smaller than the width dimension of the notch 64c of the second metal fitting 64. Further, as shown in FIG. 6B, the flange portion 62z is formed in a groove shape having a substantially U-shaped side surface, and the width dimension of the groove bottom portion 62y of the flange portion 62z is the second receiving metal 64. The engagement plate portion 64x is set to a value larger than the width dimension. Further, the height position of the flange tip portion 62 f of the flange portion 62 z is set to a position lower than the engagement plate portion 64 x of the second receiving metal fitting 64. Then, when the lateral slide member 27 is slid to the driver seat position side, as shown in FIG. 6 (B), a position where the flange tip 62f of the flange 62z overlaps with the opening 64h of the second metal fitting 64 in a plane. And the groove bottom portion 62y of the flange portion 62z is also disposed at a position where it overlaps with the lower side of the engaging plate portion 64x of the second metal fitting 64 in the same plane. That is, in this state, the second hook 62 and the second metal fitting 64 are not in contact.

Here, a seat belt buckle BK is fixed to the inner side (left side) of the seat body 12 by a belt anchor BA, as shown in FIG. For this reason, for example, when a driver pulls the seat belt forward by applying a forward collision load to the seat body 12, the tensile load is applied to the inner side of the seat body 12 via the belt anchor BA of the buckle BK. Acts to raise the front upward. When this lifting force is applied to the left side (inner side) of the horizontal slide member 27 and the left side of the horizontal slide member 27 is displaced forward and upward, the second hook 62 is moved forward and upward as shown by the two-dot chain line in FIG. As a result of the displacement, the flange portion 62z of the second hook 62 engages with the engagement plate portion 64x of the second metal fitting 64. As a result, further movement of the lateral slide member 27 is restricted. Since the upper plate 64u is inclined to the second receiving metal 64 so that the front side is slightly lower, when the second hook 62 is displaced forward and upward, the engaging plate part of the flange 62z and the second receiving metal 64 is provided. 64x is engaged in a stable state.
That is, the front end F (see FIG. 6A) of the flange portion 62z of the second hook 62 that restricts the forward movement of the lateral slide member 27 corresponds to the first engagement portion of the present invention, and the second receiving metal fitting 64. The front end K of the opening 64h corresponds to the first engaged portion of the present invention. Further, the groove bottom portion 62y (see FIG. 6B) of the flange portion 62z of the second hook 62 that restricts the upward movement of the lateral slide member 27 corresponds to the second engagement portion of the present invention. The engagement plate portion 64x of the metal fitting 64 corresponds to the second engaged portion of the present invention. Accordingly, the front end F of the flange portion 62z of the second hook 62 and the front end portion K of the opening 64h of the second receiving metal fitting 64 correspond to the front movement restricting means of the present invention, and the groove bottom of the flange portion 62z of the second hook 62 The portion 62y and the engagement plate portion 64x of the second receiving metal fitting 64 correspond to the upward movement restricting means of the present invention.

<About the operation of the vehicle driver's seat 10>
Next, the operation of the vehicle driver's seat 10 according to this embodiment will be described.
First, a procedure for using the seat body 12 at the driver's seat position as a wheelchair outside the passenger compartment will be described.
In the state where the seat body 12 is in the driver's seat position, the first hook 61 of the collision safety mechanism 60 is held at the restriction position as shown in FIG. Is engaged with the first fixed vertical pin 63 of the floor portion FL. Further, as shown in FIG. 6B, the flange portion 62z of the second hook 62 is disposed below the engagement plate portion 64x of the second metal fitting 64, and the support table portion 29 is moved forward and upward by a collision load. When displaced, the engaging plate 64x is held so as to be engageable.
In the driver's seat position, the seat body 12 can be slid back and forth by a fixed distance D as shown in FIG.
Under the condition that the vehicle engine is stopped and the seat belt is removed from the buckle BK, when the dismount switch (not shown) of the seat body 12 is pushed, first, the front / rear slide mechanism 30 operates to move the front / rear slide table. 32, and the seat main body 12 and the like on the front and rear slide table 32 move backward by a distance X from the driver seat position to the retreat limit position (side slideable position).

7A, the wire main body 74w of the wire member 74 constituting the operating mechanism 70 is pulled rearward by the front / rear slide table 32, and the pulling force of the wire main body 74w causes the lateral slide mechanism 20 to move. The first hook 61 provided on the lateral slide member 27 horizontally rotates backward. As a result, the engagement between the cutout portion 61u of the first hook 61 and the first fixed vertical pin 63 of the floor portion FL is released (the first hook 61 is held in the non-restricted position), and the lateral slide member 27 is laterally moved. Slide becomes possible.
Next, the lateral slide mechanism 20 is operated, and the lateral slide member 27 and the seat main body 12 on the lateral slide member 27 are laterally slid by the distance W to the passenger seat side (left end) (see FIG. 5B). . At this time, as described above, the first hook 61 of the lateral slide member 27 is held in the non-restricted position, and the second hook 62 is below the second receiving metal 64 of the floor portion FL, and the second receiving metal. Since the first hook 61 and the second hook 62 are held in a non-contact state with 64, the lateral slide of the lateral slide member 27 is not hindered.
In addition, since the seat body 12 slides sideways in a state where the seat body 12 is retracted by the distance X from the driver seat position to the retreat limit position (side slidable position), it is possible to prevent interference between the passenger and the handle.

Next, the front / rear slide mechanism 30 operates to advance the front / rear slide table 32 and the seat body 12 on the front / rear slide table 32 by a distance Y to a rotatable position. Then, the rotation mechanism 40 operates in the state where the door Dr on the passenger seat side is open, and the boarding / alighting position where the seat body 12 and the like turn around the rotation center C from the seating position facing the vehicle toward the door opening side at the rotatable position. Turn about 90 ° to the left. Next, the elevating mechanism 50 is operated, and the seat main body 12 is lowered to the ground with the wheels deployed. The seat body 12 can be used as a wheelchair by releasing the connection between the seat body 12 and the lifting mechanism 50.
When the seat body 12 used as a wheelchair outside the passenger compartment is returned to the driver's seat position, the elevating mechanism 50, the rotating mechanism 40, the lateral slide mechanism 20 and the front / rear slide mechanism 30 are reversed in the reverse order. Will work.

<Operation of the collision safety mechanism 60>
In the state where the seat body 12 is in the driver's seat position, the first hook 61 of the collision safety mechanism 60 is held at the restriction position as shown in FIG. Is engaged with the first fixed vertical pin 63 of the floor portion FL. Further, as shown in FIGS. 6A and 6B, the flange portion 62z of the second hook 62 is disposed below the engagement plate portion 64x of the second metal fitting 64, and the support table portion 29 is subjected to a collision load. When displaced forward and upward, the engagement plate 64x is held to be engageable.
In this state, for example, when the vehicle M collides forward, a forward collision load is applied to the driver and the seat body 12. As described above, the seat belt buckle BK is fixed to the inner side (left side) of the seat body 12 by the belt anchor BA. For this reason, for example, when a driver pulls the seat belt forward by applying a forward collision load to the seat body 12, the tensile load is applied to the inner side of the seat body 12 via the belt anchor BA of the buckle BK. It works to pull up (left side) forward and upward. This pulling force is applied to the left side of the lateral slide member 27, and the left side of the lateral slide member 27 is displaced forward and upward. As a result, as shown by a two-dot chain line in FIG. 6, the second hook 62 provided at the left end of the lateral slide member 27 is displaced forward and upward, and the front end F of the flange portion 62z of the second hook 62 is second. It engages with the front end K of the opening 64 h of the receiving metal 64. Further, the groove bottom portion 62 y of the flange portion 62 z of the second hook 62 and the engagement plate portion 64 x of the second receiving metal fitting 64 are engaged. As a result, further movement of the lateral slide member 27 and the sheet main body 12 is restricted.

On the other hand, on the outer side (right side) of the seat body 12, the seat belt tension load (upward load) is not applied, so the forward collision load acts to pull the lateral slide member 27 forward. . A first hook 61 is attached to the right end of the lateral slide member 27, and a notch 61u of the first hook 61 is engaged with the first fixed vertical pin 63 of the floor portion FL from the rear. That is, the portion B of the notch 61 u of the first hook 61 is disposed in close contact with the rear side Y of the outer peripheral surface of the first fixed vertical pin 63. Further, the part S of the notch 61u of the notch 61u is arranged in close contact with the right side of the right part R of the outer peripheral surface of the first fixed vertical pin 63. For this reason, as shown in FIG. 8, a forward pulling force (collision load (black arrow)) is applied to the lateral slide member 27, and the lateral slide member 27 and the first hook 61 are moved forward (in the direction of the black arrow). ), The portion B of the notch 61u of the first hook 61 is received by the rear portion Y of the outer peripheral surface of the first fixed vertical pin 63, and the front side of the lateral slide member 27, the seat main body 12, and the like is received. Movement is restricted.
Further, for example, when another vehicle collides with the passenger seat side of the vehicle M, the seat body 12, the lateral slide member 27, and the like receive a collision load in the passenger seat direction (the white arrow direction in FIG. 8). become. When the lateral slide member 27 and the first hook 61 try to move in the passenger seat direction (arrow direction) due to the collision load, the portion S of the notch 61u of the first hook 61 is located on the outer peripheral surface of the first fixed vertical pin 63. Receiving at the right side portion R, movement of the lateral slide member 27 and the seat body 12 in the passenger seat direction is restricted.

<Operation of the driver's seat 10 for a vehicle according to the present embodiment>
According to the vehicle driver's seat 10 according to the present embodiment, when a forward load is applied to the seat body 12 when the seat body 12 is in the driver's seat position, the portion B of the notch 61u of the first hook 61 is provided. (First engaging portion) is received by the rear portion Y (first engaged portion) of the outer peripheral surface of the first fixed vertical pin 63, and further, the front end F (first engaging portion) of the flange portion 62z of the second hook 62. The joint portion) is received by the front end K (first engaged portion) of the opening 64h of the second receiving metal fitting 64, so that the seat side member (the lateral slide member 27, the front / rear slide mechanism 30, the rotation mechanism 40, etc.) Forward movement with respect to the floor side members (floor part FL, horizontal frame 21 and horizontal slide rail 25) is prohibited. For this reason, the movement of the seat body 12 in the forward direction is restricted, and the safety of the passenger seated on the seat body 12 is ensured.
Further, when the seat body 12 moves laterally (laterally slides), the first hook 61 is held at the non-restricted position, and the first hook 61 is disposed behind the first fixed vertical pin 63. That is, the portion B (first engaging portion) of the notch 61u of the first hook 61 is disposed behind the rear portion Y (first engaged portion) of the outer peripheral surface of the first fixed vertical pin 63. Yes. Further, the front end F (first engagement portion) of the flange portion 62z of the second hook 62 is disposed rearward and lower than the front end portion K (first engagement portion) of the opening 64h of the second metal fitting 64. . For this reason, the first engaging portion (the part B of the notch portion 61u of the first hook 61, the front end F of the flange portion 62z of the second hook 62) and the first engaged portion (the outer periphery of the first fixed vertical pin 63). The rear portion Y of the surface and the front end K) of the opening 64h of the second metal fitting 64 do not hinder the lateral movement of the sheet body 12.
Thus, apart from the sliding means for moving the seat main body 12 laterally, a dedicated first engaging portion (the part B of the notched portion 61u of the first hook 61, the front end F of the flange portion 62z of the second hook 62), Since the first engaged portion (the rear portion Y of the outer peripheral surface of the first fixed vertical pin 63, the front end K of the opening 64h of the second metal fitting 64) is provided, the strength of the sliding means is more than necessary. There is no need to increase the size, and the vehicle driver's seat 10 can be made compact as a whole.

Further, when the seat main body 12 is in the driver's seat position, even if an upward load (lifting up) is applied to the seat main body 12, the second engagement portion (the groove bottom portion 62y of the second hook 62) and The seat side member (horizontal slide member 27, etc.) is moved upward relative to the floor side member (floor portion FL, horizontal frame 21, etc.) by engagement with the second engaged portion (engagement plate portion 64x of the second metal fitting 64). Is prohibited. For this reason, the upward movement of the seat body 12 is restricted, and the safety of the passenger seated on the seat body 12 is ensured.
When the seat body 12 moves laterally (laterally slides), the second engaging portion (the groove bottom portion 62y of the second hook 62) becomes the second engaged portion (the engaging plate portion 64x of the second receiving metal fitting 64). Therefore, the second engaging portion and the second engaged portion do not hinder the lateral movement of the sheet main body 12.
In addition, when the seat body 12 is in the driver's seat position and a collision load (load to the left) in the direction of the passenger seat is applied to the seat body 12, the third engagement portion (the portion S of the first hook 61). And the third engaged portion (the portion R of the first fixed vertical pin 63) are engaged to move the left side of the seat side member (the horizontal slide member 27, etc.) relative to the floor side member (the floor portion FL, the horizontal frame 21, etc.). It is forbidden. For this reason, the movement of the seat body 12 to the left is restricted, and the safety of the passenger seated on the seat body 12 is ensured.
Here, when the seat body 12 moves forward to the driver's seat position, the third engaging portion (the portion S of the first hook 61) is moved to the third engaged portion (the first hook 61) by the movement of the engaging member (first hook 61). It is the structure arrange | positioned at the side of the site | part R) of the 1st fixed vertical pin 63. FIG. That is, when the seat body 12 moves laterally (laterally slides), the first hook 61 is held at the non-restricted position, and the first hook 61 is disposed behind the first fixed vertical pin 63. For this reason, the third engaging portion and the third engaged portion do not hinder the lateral movement of the seat body 12.
Further, the first hook 61 and the first fixed vertical pin 63 are engaged on the outer side (right side) of the seat body 12, and the second hook 62 and the second receiving metal fitting 64 are on the inner side (left side) of the seat body 12. Therefore, the seat body 12 can be held at the driver seat position with good balance from both sides in the width direction.

<Example of change>
In addition, this invention is not limited to the said embodiment, The change in the range which does not deviate from the summary of this invention is possible. For example, in the present embodiment, a first hook 61 that can be engaged with the first fixed vertical pin 63 of the floor portion FL is provided on the right side of the lateral slide member 72, and the first hook 61 is restricted by the operating mechanism (engagement). An example of moving between a non-regulated position and a non-restricted position (disengaged position) is shown. However, as shown in FIG. 9, instead of the first hook 61, a horizontal pin 81 protruding in the horizontal sliding direction is provided, and instead of the first fixed vertical pin 63, a bearing portion 82 through which the horizontal pin 81 is passed is provided, It is also possible to adopt a configuration in which both the 81 and 82 are engaged when the lateral slide member 72 slides to the driver seat position side.
In the present embodiment, the vehicle driver's seat 10 including the seat main body 12 that can be used as a wheelchair has been described as an example. However, the present invention is applied to a vehicle driver's seat including a seat main body that is used only in the passenger compartment. It is also possible to apply.

It is a perspective view of the horizontal slide mechanism of the driver's seat for vehicles concerning Embodiment 1 of the present invention. It is a schematic side view of a driver's seat for vehicles. It is the III-III arrow line view of FIG. It is an operation | movement figure of the raising / lowering mechanism of the driver's seat for vehicles. It is a schematic plan view (A figure, B figure) showing operation | movement of the driver's seat for vehicles. It is the front view (A figure) showing a collision safety structure (inner side), and a longitudinal cross-sectional view (B figure). It is a top view (A figure) showing a collision safety structure (outer side), and a longitudinal section (B figure). It is a top view of a 1st hook. It is a perspective view showing the example of a change of a collision safety structure. It is the top view (A figure) and side view (B figure) showing operation | movement of the conventional driver's seat for vehicles.

Explanation of symbols

M vehicle 12 seat body 20 lateral slide mechanism (seat moving device)
21 Horizontal frame (floor side member)
25 Horizontal slide rail (slide means)
26 Slider (sliding means)
27 Lateral slide member (sheet side member)
30 Forward / backward slide mechanism (sheet moving device)
61 1st hook (engagement member, 1st engagement part, 3rd engagement part)
62 2nd hook (1st engaging part, 2nd engaging part)
63 First fixed vertical pin (first engaged portion, third engaged portion)
64 Second metal fitting (first engaged portion, second engaged portion)
70 Actuation mechanism

Claims (2)

A vehicle driver's seat comprising: a seat body; and a seat moving device that movably supports the seat body from a driver seat position on the vehicle floor to a passenger seat side position;
The seat moving device includes a floor side member fixed to the vehicle floor , and a seat side member coupled to the floor side member through a sliding means so as to be movable in the lateral direction and fixed to the seat body side. Prepared,
The seat body includes a first engagement portion provided on the seat side member and a first engaged member provided on the floor side member between the seat side member and the floor side member. The first engagement portion is disposed behind the first engaged portion in accordance with the movement toward the driver seat position side, and the first load is applied when a forward load is applied to the seat body in this state. Front movement restricting means for preventing the seat side member from moving forward relative to the floor side member by engagement of an engaging portion and the first engaged portion ;
The seat body includes a second engagement portion provided on the seat side member and a second engaged member provided on the floor side member between the seat side member and the floor side member. The second engaging portion is disposed below the second engaged portion in accordance with the movement toward the driver seat position side, and the second load is applied when an upward load is applied to the seat body in this state. An upper movement restricting means for preventing the seat side member from moving upward relative to the floor side member by engagement of the engaging portion and the second engaged portion;
Further, the seat side member is provided with a front / rear slide mechanism that allows the seat body to slide in the front / rear direction,
The front movement restricting means is arranged and configured at least on the outer side in the vehicle width direction with respect to the front and rear slide mechanism,
The vehicular driver's seat , wherein the upper movement restricting means is arranged on the inner side in the vehicle width direction with respect to the front / rear slide mechanism . A vehicle driver's seat according to claim 1,
The seat moving device includes the front / rear slide device, and the driver's seat position is set to a position reached by moving the seat body from the passenger seat side position to the driver seat position side and then moving it forward. And
An engagement member that moves in the front-rear direction in conjunction with the movement of the seat body in the front-rear direction is provided on the seat-side member, and the first engagement portion is provided on the engagement member,
The first engagement portion is arranged behind the first engaged portion by lateral movement of the seat body toward the driver seat position side,
It is comprised between the said floor side member and the said sheet side member by the 3rd engaging part provided in the said engaging member, and the 3rd to-be-engaged part provided in the said floor side member, The said sheet | seat main body is comprised. It is disposed on the side of the third engaged portion by the movement of the engaging member when moved forward to the driver seat position, and in this state, when a lateral load is applied to the seat body, the first A lateral movement restricting means for preventing the seat side member from moving laterally relative to the floor side member due to the engagement of the three engaging portions and the third engaged portion is provided. A vehicle driver's seat.

Images