JP2012192911A - Vehicle seat - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicle seat capable of stably and liftably moving a seat device connected to an outer slide mechanism provided in a seat moving device, by easily performing positioning to the outer slide mechanism of the seat device.SOLUTION: This vehicle seat 10 includes the seat device 20 usable inside and outside a vehicle room, and the seat moving device 30 arranged in the vehicle room and moving the seat device 20 inside and outside the vehicle room. The seat device 20 is provided with a fitting part 22a in the rear substantial center of a seat holder 22 connectable by inserting the seat moving device 30, and a striker 22b is arranged in the front substantial center of the seat holder 22, and the seat moving device 30 is provided with a guide 50 fitted to the fitting part 22a on a rear upper surface of the outer slide mechanism 35 connectable to the seat device 20, and a lock mechanism 40 engageable with the striker 22b is arranged on a front lower surface of the outer slide mechanism 35.

Description

  The present invention relates to a vehicle seat comprising a seat device used as a wheelchair outside the vehicle compartment and used as a seat inside the vehicle compartment, and a seat moving device that moves the seat device into and out of the vehicle interior. It is related with the control means of the back-and-forth position and the left-right position of the seat device connected to.

  2. Description of the Related Art Conventionally, there is provided a vehicle seat including a seat device that is used as a wheelchair outside a vehicle compartment and used as a seat inside a vehicle interior, and a seat moving device that moves the seat device to the outside of the vehicle interior. As a means for fixing (positioning) a seat device to be connected, for example, a vehicle seat described in Patent Document 1 has been proposed. The vehicle seat includes a coupling engaging member on a seat coupling base included in the seat moving device, and a coupling member on a seat holder included in the seat device. The seat coupling base of the sheet moving device is disposed on the lower surface side of the seat device. After the intrusion, the seat connection base is raised so that the connection engagement member provided in the sheet connection base is fitted into the engagement groove of the connection member provided in the seat device. Thereby, the seat device performs positioning in the front-rear direction with respect to the seat connection base.

2005-034328

  The vehicle seat described above is positioned by moving the seat coupling base up and down with respect to the seat coupling base of the seat device. However, the vehicle seat is positioned in the left and right direction with respect to the seat coupling base of the seat device during lifting and lowering. If it is not, it is considered that it is difficult to fit in the engaging groove of the connecting member provided in the sheet device to the connecting engaging member provided in the sheet connecting base. In order to solve this problem, the sheet device is provided with a left / right positioning mechanism for positioning in the left / right direction. However, it is considered that it is not easy for the occupant sitting on the seat device to move the seat device backward while keeping the wall portion of the left / right positioning mechanism facing both the left and right sides of the seat connection base.

  The present invention has been made to solve the above problems, and can easily position the seat device with respect to the outer slide mechanism, and can stabilize the seat device connected to the outer slide mechanism provided in the sheet moving device. An object of the present invention is to provide a vehicle seat that can be moved up and down.

A seat for a vehicle that includes a seat device that can be used inside and outside the vehicle and a seat moving device that is installed in the vehicle interior and moves the seat device to the outside of the vehicle interior. The seat device inserts the seat moving device. A fitting part is provided at the approximate center of the back of the seat holder that can be connected to the unit, a striker is provided at the approximate center of the front of the seat holder, and the seat moving device is fitted to the rear upper surface of the outer slide mechanism that enables connection with the seat device. It is a technical feature that a guide that fits with the portion is provided, and a lock mechanism that can engage with the striker is provided on the front lower surface of the outer slide mechanism.

According to the vehicle seat of claim 1, when the outer slide mechanism of the seat moving device is inserted into the holder of the seat device, the front and rear positions and the left and right positions with respect to the outer slide mechanism of the seat device are regulated and connected. When the seat device is moved into the vehicle compartment, it can be safely lifted and lowered.

It is a figure which shows the seat apparatus of the vehicle seat. The figure which looked at the sheet apparatus from the lower part is shown. It is a figure which shows the seat moving apparatus of the vehicle seat. It is a figure which shows the outer slide mechanism of a sheet | seat movement apparatus. The figure which the seat apparatus connected with the seat movement apparatus in the vehicle interior is shown.

Embodiments of the present invention will be described below with reference to the drawings.
The vehicle seat 10 of the present invention can be provided in a driver's seat, a passenger seat, or a second row or later seat of a vehicle, has front and rear wheels, and is used as a wheelchair outside the vehicle compartment. In FIG. 2, the seat device 20 can be used as a seat on which an occupant is seated, and the seat moving device 30 is fixed in the vehicle cabin and moves the seat device 20 to the outside of the vehicle cabin.

  The seat device 20 can be connected to and disconnected from a seat moving device 30 to be described later, and as shown in FIG. 1, the seat cushion 21a that forms a surface on which the occupant sits and the back of the occupant seated on the seat cushion 21a. A seat main body 21 including a seat back 21b, a seat holder 22 that supports the seat main body 21, wheels 23 provided in the seat holder 22, a drive mechanism 24 for driving the wheels 23 outside the vehicle compartment, and a drive mechanism 24 Electric power is supplied to various electric devices such as an operation member 25 that controls the rotation of the rotating wheel 23 and changes the angle of the wheel 23 with respect to the traveling direction of the seat device 20, and a drive mechanism 24 and an operation member 25 attached to the seat device 20. The battery 26 is supplied.

  The seat holder 22 supports the seat body 21 and can be connected to an outer slide mechanism 35 included in the seat moving device 30. As shown in FIGS. 1 and 2, the occupant seated on the seat body 21 A pair of left and right wheels 23 (front wheel 23a and rear wheel 23b) that can be folded at the front and rear positions of the side surface, a drive mechanism 24 that is provided near the rear wheel 23b and rotates the wheel 23, and seated on the seat body 21. A fitting portion 22a formed so as to be fitted to a guide included in the seat moving device 30 at a substantially rear central position on the back surface (surface supported by the base plate of the seat moving device 30) with respect to the occupant, and a front substantially central position on the back surface. The striker 22b that engages with the lock mechanism 40 that is provided in the outer slide mechanism 35 that is provided in the seat moving device 30 is provided.

The fitting portion 22 a formed on the sheet holder 22 can be fitted to the guide 50 of the outer slide mechanism 35 included in the sheet moving device 30, and the sheet moving device 30 is fitted by the fitting portion 22 a fitting with the guide 50. The positional deviation of the seat device 20 in the left-right direction is corrected and the left-right direction is restricted. The fitting portion 22a only needs to be fitted to the guide 50 of the outer slide mechanism 35 included in the sheet moving device 30, and forms a concave shape in the present embodiment. Here, when the guide 50 of the outer slide mechanism 35 included in the sheet moving device 30 forms a concave portion, the fitting portion 22a may have a structure including a convex portion or a bracket having a convex portion. .

The striker 22b is a rod-like member extending from the surface supported by the base frame 35a of the outer slide mechanism 35 included in the sheet moving device 30 toward the sheet moving device 30 (downward). When the base frame 35a of the slide mechanism 35 is inserted into the seat holder 22 from the rear with respect to an occupant seated on the seat device 20, by engaging with the lock mechanism 40 included in the outer slide mechanism 35 of the seat moving device 30, The position of the seat device 20 in the front-rear direction with respect to the outer slide mechanism 35 of the seat moving device 30 is restricted.

  The wheels 23 are for allowing the seat device 20 moved out of the vehicle compartment by the seat moving device 30 to freely travel, and are provided at the front and rear positions of the side surface of the seat holder 22 with respect to an occupant seated on the seat body 21. It is done. The wheel 23 is provided via a stay 23c, with a wheel provided on the front side of the seat holder 22 as a front wheel 23a and a wheel 23 provided on the rear side of the seat holder 22 as a rear wheel 23b. The stay 23c is configured such that when the power source 23d (not shown) is driven, the stay 23c is moved so that the wheel 23 can be expanded or folded. When the seat device 20 is used as a wheelchair outside the vehicle compartment, the stay 23c is in the expanded state. There is a folded state when the seat device 20 is used as a seat in the vehicle compartment.

  The drive mechanism 24 is a power for rotating the wheel 23 forward and backward, mainly a motor 24a (not shown), and a gear portion 24b (not shown) that can be assembled to increase or decrease the power of the motor 24a. It consists of. When the motor 24a rotates forward, the drive mechanism 24 rotates the wheel 23 forward to move the seat device 20 forward, and when the motor 24a rotates backward, the wheel 23 rotates backward to reverse.

  The operation member 25 is for controlling the rotation of the wheel 23 rotated by the drive mechanism 24 and for changing the angle of the wheel 23 with respect to the traveling direction of the seat device 20. In this embodiment, the operation member 25 is pushed down. The joystick changes the rotation speed of the wheel 23 and the angle of the wheel 23 with respect to the traveling direction. The operation member 25 is provided with a support member attached so as to extend from the front end of the armrest provided in the seat back 21b or the surface of the seat holder 22 having the seat main body 21 to the occupant side (upward). The structure may be provided, and in any case, it is provided in a place where the passenger can easily operate.

  The battery 26 (not shown) is a power source that supplies power to the drive mechanism 24 and the operation member 25, and is provided in the rear in the traveling direction of the seat device 20.

  Next, the seat moving device 30 that moves the seat device 20 described above to the outside of the vehicle interior will be described. As shown in FIG. 3, the seat moving device 30 includes a floor fixing portion 31 that is fixed in the vehicle interior, and a seat device 20 that is connected to the seat moving device 30 so as to be movable back and forth in the floor fixing portion 31. And a rotation mechanism 33 that rotates the seat device 20 conveyed by the slide mechanism 32 between a position facing the vehicle traveling direction and a position facing the door opening direction. And an elevating mechanism 34 that moves the seat device 20 facing the door opening direction between the vehicle interior and the exterior of the vehicle interior, and the elevating mechanism 34 can be moved outside the vehicle interior and connected to and disconnected from the seat device 20. And an outer slide mechanism 35.

  The floor fixing portion 31 fixes the vehicle seat 10 to the vehicle floor F, and lays a pair of left and right rail members 31a substantially parallel to the door opening on the vehicle floor surface. The rail member 31a has a concave cross section, and a screw shaft 31b (not shown) and a nut member that enable a slide mechanism 32 (to be described later) to move back and forth (in the extending direction of the rail member) are disposed inside the concave shape. 31c (not shown) is provided with fixing members 31d for fixing to the vehicle floor F at both ends. The vehicle seat 10 is fixed to the vehicle floor F by fastening the fixing member 31d and the vehicle floor F with a bolt or the like.

  The slide mechanism 32 is a mechanism for moving the seat device 20 in the front-rear direction with respect to the traveling direction of the vehicle. The slide mechanism 32 is provided with a slide base 32a so as to slidably cover the pair of rail members 31a of the floor fixing portion 31. . The slide base 32a includes a rotating disk 32b that rotates a rotating mechanism 33, which will be described later, on the front surface (a surface symmetrical to the surface on the floor fixing portion 31 side), and drives the rotating disk 32b on the back surface (the surface on the floor fixing portion side). And a slide motor 32d that drives a screw shaft 31b and a nut 31c included in the rail member 31a of the floor fixing portion 31.

  The rotation mechanism 33 is a mechanism that rotates the seat device 20 between a position facing the traveling direction of the vehicle and a position facing the door opening direction with the rotating disk 32b included in the slide mechanism 32 as a rotation axis. A rotating board 33a that is rotatably assembled to the rotating disk 32b is provided. The rotating board 33a includes a lifting motor 33b that operates a lifting mechanism 34, which will be described later, a screw screw 33c that rotates when the lifting motor 33b is driven to slide the lifting mechanism 34 in the front-rear direction, and both sides of the rotating board 33a. A guide roller 33d that is rotatably provided in front of the surface and supports the elevating mechanism 34 when elevating an outer slide mechanism 35 described later is provided.

  The elevating mechanism 34 is a mechanism for elevating and lowering an outer slide mechanism 35 (described later) between a floor fixing portion 31 provided in the vehicle compartment and a vehicle outdoor seat device lowering position. A pair of link mechanisms 34a that are driven while being supported by the rollers 33d, a front end fixing member 34b that is spanned between the front ends of the link mechanism 34a, and a rear end that is spanned between the rear ends of the link mechanism 34a A fixing member 34c. The front end fixing member 34b slides on the upper surface a geared motor 34e which is power for driving the outer slide mechanism 35 in the vehicle interior and exterior direction, and guide members provided on the lower surfaces of both ends of the base plate of the outer slide mechanism 35 on the upper surfaces of both ends. A rail member 34f that fits freely is attached. Further, the rear end fixing member 34 is attached with a connecting portion 34g to which a screw screw 33c included in the rotating mechanism 33 is screwed and connected.

  The outer slide mechanism 35 is a mechanism that allows the sheet moving device 30 and the seat device 20 to be connected. As shown in FIG. 4, the base frame 35 a that supports the seat device 20 and the front end fixing member included in the elevating mechanism 34. A bracket 35b having a surface that can be engaged with the geared motor 34e of 34b is provided. Here, the base frame 35a has a guide member 35c that can be fitted to the rail member 34f of the front end fixing member 34b of the elevating mechanism on both lower surfaces, and can be engaged with the striker 22b on the seat device 20 substantially at the center of the front lower surface. A locking mechanism 40 is provided, and a guide 50 is provided at the approximate center of the rear upper surface so as to be fitted to a fitting portion 22a provided on the rear surface of the seat holder 22.

The lock mechanism 40 is a mechanism that regulates the position of the seat device 20 in the front-rear direction with respect to the outer slide mechanism 35 by engaging with a striker 22b included in the seat device 20, and forms a groove part into which the striker 22b can be inserted. 41, a hook 42 rotatably supported by the base 41, a cam member 43 formed with a cam 43a that is rotatably supported by the base 41 and abuts against an operation surface formed on the hook 42, and the cam 43a operates. A biasing member 44 that biases the cam member 43 in a direction of pressing the surface and a pole 45 that is rotatably supported by the base 41 are provided. Here, when the actuator is driven, the hook 42 switches the striker 22b to an engageable state (striker holding state) or the striker 22b to an unengageable state.

  The guide 50 is a mechanism that corrects the positional deviation of the seat device 20 in the left-right direction with respect to the outer slide mechanism 35 and restricts the left-right position. The fitting portion 22a is provided so as to be fitted. The guide 50 has a surface 50a on the front side of the seat frame 35a formed in an arc shape so that the seat frame 35a of the outer slide mechanism 35 included in the seat moving mechanism 30 is inserted and connected to the seat holder 22 of the seat device 20. If the sheet device 22 is displaced in the left-right direction, it is possible to correct the displacement in the left-right direction of the seat device 20 with respect to the outer slide mechanism 35 by sliding the fitting portion 22a of the sheet holder 22, and the seat holder 22 is fitted. Fits with the portion 22a.

  The seat moving device 30 described above operates the operating member 25 provided in the seat device 20 or the operating member 60 (not shown) for driving the seat moving device provided in the vehicle, thereby moving the seat device 20 outside and inside the vehicle. It is possible to move on. Here, the operation member 60 provided in the vehicle is provided at a position that is easy to be operated by an occupant seated on the seat device 20 or an occupant seated on the seat device 20 when the door of the vehicle is opened.

  Next, a procedure for returning the seat device 20 located outside the vehicle compartment to the vehicle compartment by the seat moving device 30 will be described. In this case, the outer slide mechanism 35 of the seat moving device 30 is operated at a predetermined position outside the vehicle compartment by operating the operation member 60 provided on the vehicle by a passenger sitting on the seat device 20 or a person releasing the passenger sitting on the seat device 20. Leave it moved. At this time, the hook 42 of the lock mechanism 40 included in the outer slide mechanism 35 drives the actuator so that it can be engaged with the striker 22b. After the seat device 20 is moved by the occupant seated on the seat device 20 so that the rear side faces the outer slide mechanism 35, the seat device 20 moves backward to insert the outer slide mechanism 35 of the seat moving device 30 into the seat holder 22b.

  The outer slide mechanism 35 of the sheet moving device 30 slides on the side surface of the sheet holder 22b included in the seat device 20 by the base frame 35a, thereby correcting the positional displacement of the seat device 20 in the left-right direction. Insert to the connection position. Here, the guide 50 included in the outer slide mechanism 35 is configured such that the lateral position of the sheet device 20 is corrected at the connecting position with the seat device 20 so that the side surface of the seat device 20 is positioned on the base frame 35a of the outer slide mechanism 35. The left and right positions of the sheet device 20 with respect to the outer slide mechanism 35a are regulated by being in a state parallel to the side surface and fitting with a recess 22a formed in the sheet device 20. At this time, the lock mechanism 40 included in the outer slide mechanism 35 is in a state where the striker 22b is inserted into the groove of the base 41 as the seat device 20 moves backward. When the striker 22b is inserted into the groove portion of the base 41 of the lock mechanism 40, the front and rear positions of the seat device 20 with respect to the seat moving device 30 are regulated by driving the actuator and engaging the hook 42. (Fig. 5)

  When the outer slide mechanism 35 of the sheet moving device 30 is inserted and connected to the seat holder 22, the seat device 20 performs an operation of driving the power source and folding the wheel 23. When the power source of the seat device 20 is driven, the stay 23c that holds the wheel 23 folds the wheel 23 by rotating the wheel 23 to the rear of the seat device 20.

  When the seat device 20 folds the wheel 23, the seat moving device 30 drives the elevating motor 33b included in the rotating mechanism 33 and the geared motor 34e included in the elevating mechanism 34 to move the outer slide mechanism 35 to the vehicle outdoor seat device lowering position. To the rotation mechanism 33 in the vehicle compartment. Here, the seat moving device 30 changes the direction of the seat device 20 on which the occupant is seated when the outer slide mechanism 35 connected to the seat device 20 is moved to the rotating mechanism 33. The sheet moving device 30 drives a rotation motor 32 c included in the slide mechanism 32 in order to change the direction of the sheet device 20. Then, the turntable 32b of the slide mechanism 32 rotates the rotation board 33a of the rotation mechanism 33 from the door opening direction to the vehicle traveling direction. As a result, the seat moving device 30 changes the direction of the seat device 20 from the door opening direction to the traveling direction of the vehicle.

  The seat device 20 facing the traveling direction of the vehicle can move in the front-rear direction of the vehicle by moving the slide base 32a of the slide mechanism 32 included in the seat moving device 30, and the slide motor 32d of the slide mechanism 32 can be moved. The slide base 32a is moved to a predetermined location by rotating the screw shaft 31b provided in the floor fixing portion 31 by driving

  As described above, the vehicular seat 10 according to the present invention is configured so that the outer slide mechanism 35 of the seat moving device 30 and the seat holder 22 of the seat device 20 are connected to each other, so that the front and rear positions of the seat device 20 with respect to the seat moving device 30 Since the left and right positions can be regulated, the seat device 20 can be stably moved to the rotation mechanism 33 in the vehicle compartment.

DESCRIPTION OF SYMBOLS 10 Vehicle seat 20 Seat apparatus 21 Seat main body 22 Holder 22a Fitting part 22b Striker 30 Seat moving apparatus 40 Lock mechanism 50 Guide

Claims (1)

A seat device usable inside and outside the vehicle;
A vehicle seat configured with a seat moving device that is installed in a vehicle compartment and moves the seat device to the outside of the vehicle interior;
The seat device is provided with a fitting portion at a substantially rear center of a seat holder that can be connected by inserting the seat moving device, and a striker is provided at a substantially front center of the seat holder,
The seat moving device is provided with a guide that engages with the fitting portion on a rear upper surface of an outer slide mechanism that enables connection with the seat device, and a lock mechanism that can be engaged with the striker on a front lower surface of the outer slide. A vehicle seat characterized by comprising:

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