JPH11227504A - Seat turning device for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate boarding a car from the outside by positioning a seat tip part toward the outside of the car from a door opening part while a seat is turned in a side toward the door opening part and to secure a sufficient gap between the seat tip part and the pillar of the front side of the seat when the seat is turned. SOLUTION: First and second pin members 6A and 6B are projectingly provided in the lower surface of a seat supporting member 6 for supporting a seat 7. In the upper surface of a second seating plate 1B fixed to a car room floor surface 3, first and second guiding grooves 7A and 7B are formed to be engaged with the pin members 6A and 6B freely rotatably. The seat supporting member 6 has a first state for positioning the seat to face front, a second state for turning the tip of the seat 7 in a rear direction with respect to the front face and directing the same by a required angle to a side toward a door opening part 5, a third state for directing the seat 7 to the side toward the door opening part 5 by a required angle more than that in the second state, and a fourth state for directing the seat 7 to a position closer to the door opening part 5 than the third state and to a side toward the same.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seat swivel device for a vehicle in which a seat in a vehicle interior is provided so as to be swivelable from the front to the side toward the door opening.

[0002]

2. Description of the Related Art A conventional seat swivel device in a vehicle includes:
The center position for turning the seat is provided behind the center position of the seat positioned in the front direction, behind the door opening side, and the seat is provided so as to be pivotable from the front direction to the side toward the door opening, and the seat is provided in the door. With the seat turned to the side toward the opening, the front end of the seat is positioned outside the vehicle from the door opening to facilitate getting on and off the seat from outside the vehicle. (For example, see Japanese Utility Model Application Laid-Open No. 60-132936).

[0003]

However, in such a conventional seat swiveling apparatus for a vehicle, the center position for turning the seat is provided behind the center position of the seat positioned in front of the door opening side. Therefore, when the turning radius of the seat is increased and the seat is turned from the front to the side toward the door opening, the gap between the seat front end and the pillar in front of the seat is narrowed, and There was a problem that it was impossible to secure leg space for a seated passenger.

According to the present invention, the front end portion of the seat is positioned outside the vehicle from the door opening in a state where the seat is turned to the side from the front toward the door opening, thereby facilitating getting in and out of the seat from outside the vehicle. It is an object of the present invention to provide a seat turning device for a vehicle that can sufficiently secure a gap between a front end of the seat and a pillar on the front side of the seat when turning the seat.

[0005]

SUMMARY OF THE INVENTION For this reason, a seat swiveling apparatus for a vehicle according to the present invention includes a seat support member for supporting a seat on a pedestal fixed to a floor of a vehicle cabin, and a lower surface of the seat support member. A first pin member and a second pin member protruding from
A first guide groove for movably engaging the first pin member and a second guide groove for movably engaging the second pin member are formed on the upper surface of the pedestal facing the lower surface of the seat support member. The guide groove and the second guide groove have one end and the other end respectively contacting the first pin member and the second pin member, and the first guide groove is provided rearward from the second guide groove. The guide groove is formed in an arc shape having a radius centered on the other end of the second guide groove, and one end is provided on the door opening side and forward of the other end, and the second guide groove is provided on the other end of the first guide groove. An arc-shaped portion having a radius centered at the center and an extending portion connected to the arc-shaped portion and extending toward the door opening side, and one end is disposed on the door opening side and forward of the other end. The seat support member has a first pin member in contact with one end of the first guide groove and a second pin in the other end of the second guide groove. A first state in which the seat is positioned in a frontal direction by abutting the material, and a seat in which the first pin member abuts on the other end of the first guide groove and the second pin member abuts on the other end of the second guide groove. In a second state in which the front end of the door opening is turned rearward with respect to the front and the seat is turned to a required angle toward the door opening, and a first pin abutting on the other end of the first guide groove. A third state in which the second pin member is moved about the member along the arcuate portion of the second guide groove to make the seat a desired angle further toward the door opening than the second state;
The first pin member is in contact with one end of the guide groove, and the second pin member is in contact with one end of the second guide groove, so that the seat is positioned closer to the door opening from the third state and toward the door opening. And a fourth state directed toward it.

According to the seat swiveling device for a vehicle of the present invention, the first pin member is in contact with one end of the first guide groove, and the second pin member is in contact with the other end of the second guide groove. In the first state of the seat support member positioned in the front direction, the seat support member is turned around the second pin member abutting on the other end of the second guide groove to move the first pin member along the first guide groove. When it moves and comes into contact with the other end of the first guide groove,
The seat support member is in the second state, and the front end of the seat on the side of the door opening is turned backward with respect to the front direction to turn the seat to the required angle to the side toward the door opening. In the second state, when the seat support member is turned around the first pin member abutting on the other end of the first guide groove to move the second pin member along the arc-shaped portion of the second guide groove, the seat The support member is in the third state, and the seat is further turned to the required angle to the side toward the door opening from the second state. In the third state, the first pin member is moved along the first guide groove to abut one end of the first guide groove, and the second pin member is moved along the extending portion of the second guide groove. When the seat support member comes into contact with one end of the second guide groove, the seat supporting member is in the fourth state, and the seat is moved from the third state to a position closer to the door opening and is directed to the side toward the door opening. In the third state of the seat support member, the seat passes through the pillar on the front side of the seat, and in the third state, the other end of the first guide groove that abuts the first pin member serving as the center of rotation of the seat support member is Since it is arranged behind one end, it is possible to sufficiently secure a gap between the front end of the seat and the pillar on the front side of the seat by the amount arranged behind the one end. Further, in the fourth state of the seat support member, the seat faces sideways toward the door opening,
In this fourth state, one end of the first guide groove that abuts the first pin member and one end of the second guide groove that abuts the second pin member are respectively located closer to the door opening than the other end. The front end of the seat can be located outside the vehicle from the door opening with the seat facing sideways toward the door opening.
Therefore, in a state where the seat is turned to the side toward the door opening from the front, the front end of the seat is located outside the vehicle from the door opening so that the user can easily get on and off the seat from outside the vehicle, When turning, a sufficient gap can be provided between the front end of the seat and the pillar on the front side of the seat.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a first embodiment of the present invention will be described with reference to the drawings. 1 and 2, reference numeral 1 denotes a pedestal, which is a first base fixed to a passenger compartment floor surface 3 of a passenger car 2 as a vehicle.
A second pedestal plate 1A having a leg H bent downwardly on the first pedestal plate 1A and a gap H formed between the first pedestal plate 1A and a second pedestal plate 1B; The plate 1 </ b> B extends above a step portion 4 in which a part of the plate 1 </ b> B is recessed below the cabin floor 3, and the step portion 4 is connected to the door opening 5.

Reference numeral 6 denotes a seat supporting member for supporting the seat 7, which is arranged on the second pedestal plate 1B of the pedestal 1 and the pillar 7A on the front side of the seat 7 from the front toward the door opening 5 from the front. Is provided so as to be free to turn. 6A is a first pin member protruding from the lower surface of the seat support member 6 and located at a position closer to the door opening 5 than the center position of the seat 7 (the state shown in FIG. 1) which is positioned in front of the passenger car 2 in the width direction. In addition, the seat 7 is provided at a substantially central position of the seat 7 which is located in front of the passenger car 2 in the front-rear direction. Reference numeral 6B denotes a second pin member protruding from the lower surface of the seat support member 6 at a position on the inner side facing the door opening 5 from the center position of the seat 7 in the width direction of the passenger car 2 and in the front-rear direction of the passenger car 2 In this example, the first pin member 6A is provided at a position forward of the projecting position.

Reference numeral 7A denotes a first guide groove for movably engaging the first pin member 6A, and 7B denotes a second guide groove for movably engaging the second pin member 6B. An opening is formed on the upper surface of the second pedestal plate 1B facing the lower surface of the seat support member 6. Each of the first pin member 6A engaged with the first guide groove 7A and the second pin member 6B engaged with the second guide groove 7B has a tip portion extending to the gap H, and each tip portion has a guide groove 7A. , 7B are attached with retaining members 8A, 8B having a larger diameter than the width dimension of the second pedestal plate 1B. Further, pressing members 9A and 9B having a diameter larger than the width dimension of each of the guide grooves 7A and 7B are attached to the roots above the respective guide grooves 7A and 7B of each of the pin members 6A and 6B. It is provided in sliding contact with the upper surface of the two pedestal plates 1B. And
Each of the pin members 6A, 6B holds the second pedestal plate 2B from above and below by the retaining members 8A, 8B and the pressing members 9A, 9B to prevent the pin members 6A, 6B from coming out of the guide grooves 7A, 7B in the upward direction. Provided.

The first guide groove 7A has one end 71A and the other end 72A which contact the first pin member 6A, and the second guide groove 7B has one end 71B and the other end 72B which contact the second pin member 6B. In the front-rear direction, the first guide groove 7A is
Behind the guide groove 7B, that is, the first guide groove 7A is
The second guide groove 7B is provided on the rear side of the pedestal plate 1A, and is provided on the front side of the second pedestal plate 1B. In the width direction, one end 71A of the first guide groove 7A is connected to the second guide groove 7A.
B, the other end 72A of the first guide groove 7A is located closer to the door opening 5 than the other end 72B of the second guide groove 7B, that is, the first guide groove 7A is in the second guide. The dimension length in the width direction is shorter than the groove 7B.

The first guide groove 7A is formed in an arc shape having a radius centered on the other end 72B of the second guide groove 7B.
A is provided on the door opening 5 side and forward from the other end 72A. The second guide groove 7B has an arcuate portion 73B having a radius centered on the other end 72A of the first guide groove 7A, and a linear extension that extends to the front of the door opening 5 side following the arcuate portion 73B. 74B, one end 7
1B is provided on the door opening 5 side and forward of the other end 72B. The extension 7 of the second guide groove 7B
4B may be an arc shape instead of a straight line shape. The first guide groove 7A and the arcuate portion 73B of the second guide groove 7B are provided at the same radius, and the radius and one end 71A of the first guide groove 7A and one end 71B of the second guide groove 7B are provided. And the same distance.

The seat support member 6 has a first state, a second state, a third state, and a fourth state described in detail below.

The first state (the state shown in FIG. 1) is the first guide groove 7.
A first pin member 6A is in contact with one end 71A of A, and a second pin member 6B is in contact with the other end 72B of the second guide groove 7B, so that the seat 7 is provided facing the front.

The second state (the state shown in FIG. 3) corresponds to the first guide groove 7.
The first pin member 6A abuts on the other end 72A of A and the second pin member 6B abuts on the other end 72B of the second guide groove 7B so that the front end of the seat 7 on the door opening 5 side is rearward with respect to the front. The seat 7 is turned at a desired angle to the side toward the door opening 5.

The third state (the state shown in FIGS. 4 and 5) is the first state.
First pin member 6A abutting on the other end 72A of guide groove 7A
The second pin member 6B is moved along the arcuate portion 73B of the second guide groove 7B with the seat 7 as a center, and the seat 7 is provided at a position where the seat 7 is further turned to the required angle toward the door opening 5 from the second state. I have.

The fourth state (the state shown in FIG. 6) corresponds to the first guide groove 7.
The first pin member 6A abuts on one end 71A of A and the second pin member 6B abuts on one end 71B of the second guide groove 7B, so that the seat 7 is positioned closer to the door opening 5 than in the third state and It is provided at a position facing sideways toward the door opening 5.

Reference numerals 10A and 10B denote spherical members rotatably mounted on the lower surface of the seat support member 6, which are provided by rolling the upper surface of the second pedestal plate 1B with the rotation of the seat support member 6.
The spherical members 10A and 10B may be rotatably mounted on the upper surface of the second pedestal plate 1B, and may be provided by rolling the lower surface of the seat support member 6 with the rotation of the seat support member 6. Reference numeral 11 denotes a fixing pin member movably attached to the lower surface of the seat support member 6 in a vertical direction, the first fixing hole 1 penetrating through the second pedestal plate 1B.
2A and the second fixing hole 12B are provided so as to be freely engaged and disengaged. The fixing pin member 11 holds the seat support member 6 in the first state by engaging with the first fixing hole 12A, and holds the seat supporting member 6 in the fourth state by engaging with the second fixing hole 12B.
It is provided while holding the position in the state. 13 is a seat support member 6
A bar-shaped fixing release member rotatably mounted on the lower surface of the seat 7 and provided in connection with the fixing pin member 11, and has an operating portion 13A formed by bending one end extending laterally of the seat 7 upward. The operation unit 13A is provided so that a passenger sitting on the seat 7 can perform a rotation operation. The fixing release member 13 is operated by rotating the operation portion 13A in one direction, so that the fixing pin member 1 is rotated.
1 is moved upward so as to be disengaged from the first fixing hole 12A or the second fixing hole 12B, and the position holding of the seat support member 6 is provided to be releasable. The fixing release member 13 is rotationally urged in the other direction by a spring (not shown), and accordingly, the fixing pin member 11 is urged downward to be provided.

Next, the operation of the above configuration will be described. FIG.
Indicates a first state of the seat support member 6, and includes a first guide groove 7A.
The first pin member 6A is in contact with one end 71A of the second guide groove 7B and the second pin member 6B is in contact with the other end 72B of the second guide groove 7B, so that the seat 7 is positioned in the front direction, and the fixed pin member 11 is first fixed. The seat support member 6 is held in the first state by engaging with the hole 12A.

In this first state, when the operation portion 13A of the fixing release member 13 is rotated in one direction (upward in FIG. 1),
The fixing pin member 11 moves upward to move the first fixing hole 12A.
And the position holding of the seat support member 6 is released. Then, the seat support member 6 is pivoted counterclockwise in FIG. 1 around the second pin member 6B abutting on the other end 72B of the second guide groove 7B to move the first pin member 6A along the first guide groove 7A. When the seat support member 6 is moved to abut on the other end 72A of the first guide groove 7A, the seat support member 6 is in the second state shown in FIG. The seat 7 is turned to the required angle to the side toward the door opening 5.

In the second state, the seat support member 6 is pivoted counterclockwise in FIG. 3 around the first pin member 6A which is in contact with the other end 72A of the first guide groove 7A.
When B moves along the arcuate portion 73B of the second guide groove 7B, the seat support member 6 enters the third state shown in FIGS. 4 and 5 (FIG. 4 shows an intermediate position in the third state, and FIG. The end position of the third state is shown.), And the seat 7 passes through the pillar 5A on the front side of the seat 7 in the state shown in FIG. 4 to be in the state shown in FIG. Turn to the required angle to the side toward 5.

In the third state shown in FIG. 5, the first pin member 6A
Is disengaged from the other end 72A and moves along the first guide groove 7A to come into contact with the one end 71A and the second pin member 6B
Is moved along the extending portion 74B of the second guide groove 7B and comes into contact with the one end 71B, the seat supporting member 6 is in the fourth state shown in FIG. 6, and the seat 7 is moved from the third state to the door opening 5 To the side position and to the side towards the door opening 5. In the fourth state, the fixing pin member 11 located above the second fixing hole 12B is urged by a spring and moves downward to engage with the second fixing hole 12B, thereby moving the seat support member 6 to the position. Hold. The passenger gets on and off the seat 7 in this state.

In the state shown in FIG. 6, when the operating portion 13A of the fixing releasing member 13 is rotated in one direction (left direction in FIG. 6), the fixing pin member 11 moves upward and the second fixing hole 1 is moved.
2B, the position holding of the seat support member 6 is released. Then, the first pin member 6A is connected to one end 71
A, and moves along the first guide groove 7A to come into contact with the other end 72A and to move the second pin member 6B to the one end 71A.
When the seat support member 6 is moved along the extending portion 74B of the second guide groove 7B after being separated from the second guide groove 7B, the seat support member 6 enters the third state shown in FIG. 5, and in this third state, the other end 72A of the first guide groove 6A. Seat support member 6 centering on first pin member 6A
Is rotated clockwise in FIG. 5 to move the second pin member 6B along the arcuate portion 73B of the second guide groove 7B, and the seat support member 6 moves through the state of FIG. 4 to the second state shown in FIG. The second pin member 6B that has moved along the arcuate portion 73B of the second guide groove 7B abuts on the other end 72B. And
The seat support member 6 is pivoted clockwise in FIG. 3 around the second pin member 6B in contact with the other end 72B of the second guide groove 7B to separate the first pin member 6A from the other end 72A, and the first When it moves along the guide groove 7A and comes into contact with one end 71A, the seat support member 6 returns to the first state shown in FIG.
With the return of the seat support member 6 from the fourth state to the first state, the seat 7 returns to the state of FIG. 1 through the states of FIGS. 6, 5, 4, and 3.

With this operation, in the third state of the seat support member 6 in which the seat 7 passes through the pillar 5A on the front side of the seat 7, the first pin member 6A, which is the center of rotation of the seat support member 6, comes into contact with the first pin member 6A. Since the other end 72A of the guide groove 7A is disposed behind the one end 71A, a gap between the front end of the seat 7 and the pillar 5A on the front side of the seat 7 can be sufficiently provided by the rear end. In the fourth state of the seat support member 6 in which the seat 7 faces sideways toward the door opening 5, the one end 71A of the first guide groove 7A abutting the first pin member 6A and the second pin member 6B abut. One end 71 of second guide groove 7B
B is the door opening 5 from the other end 72A, 72B.
Since the seat 7 is located on the side, the front end of the seat 7 can be located outside the vehicle from the door opening 5 in a state facing the door opening 5. For this reason, in a state where the seat 7 is turned to the side toward the door opening 5 from the front direction, the front end of the seat 7 is positioned outside the vehicle from the door opening 5 so that getting on and off the seat 7 from the outside can be facilitated. In addition, when turning the seat 7, a sufficient gap can be provided between the front end of the seat 7 and the pillar 5A on the front side of the seat 7, and a leg space for the occupant sitting on the seat 7 can be secured well. Further, a first guide groove 7A and a second guide groove 7B are formed in the second pedestal plate 1B of the pedestal 1 which can be provided larger than the seat support member 6 whose size is determined according to the seat 7 to be supported. So that each guide groove 7A,
The size of the guide groove 7A is less likely to be restricted, and the optimum guide grooves 7A and 7B according to the specification can be easily formed. Furthermore, when the seat support member 6 turns from the first state to the fourth state, the spherical members 10A and 10B rotatably attached to the lower surface of the seat support member 6 roll on the upper surface of the second pedestal plate 1B of the pedestal 1. To move, a pressing member 9 attached to the root of each of the pin members 6A and 6B and slidingly contacting the upper surface of the second pedestal plate 1B.
The sliding resistance of A and 9B can be reduced. Even if the spherical members 10A and 10B are rotatably mounted on the upper surface of the second pedestal plate 1B of the pedestal 1, and the lower surface of the seat support member 6 is rolled, the sliding resistance can be similarly reduced.

In the embodiment, the seat 7 is directly supported on the seat support member 6. However, the seat 7 is supported on the seat support member 6 through a well-known elevating device, and the fourth portion of the seat support member 6 is supported.
In this state, the seat 7 may of course be provided so as to be lowered from the vehicle compartment to the outside of the vehicle or to be raised from the vehicle outside to the vehicle compartment by the elevating device.

[0025]

As described above, according to the present invention, when the seat is turned from the front to the side toward the door opening, the front end portion of the seat is located outside the vehicle from the door opening to move the seat from the outside to the seat. While the passenger can easily get on and off, a sufficient clearance can be provided between the front end of the seat and the pillar on the front side of the seat when turning the seat, and a leg space for the occupant sitting on the seat can be secured well. In addition, since the first guide groove and the second guide groove are formed on a pedestal that can be provided larger than a seat support member whose size is determined according to the seat to be supported,
The size of each guide groove is less likely to be restricted, and an optimum guide groove according to specifications can be easily formed.

[Brief description of the drawings]

FIG. 1 is a schematic plan view showing an imaginary line of a seat of a seat turning device in a vehicle according to a first embodiment of the present invention.

FIG. 2 is an enlarged view showing a part viewed from an arrow A of FIG. 1 in a cross section.

FIG. 3 is a schematic plan view showing an operation state of FIG. 1;

FIG. 4 is a schematic plan view showing an operation state different from FIG. 3;

FIG. 5 is a schematic plan view showing an operation state different from FIG. 4;

FIG. 6 is a schematic plan view showing an operation state different from FIG. 5;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Pedestal 3 Car cabin floor surface 5 Door opening 5A pillar 6 Seat support member 6A 1st pin member 6B 2nd pin member 7 Seat 7A 1st guide groove 7B 2nd guide groove 71A, 71B One end 72A, 72B The other end 73B Arc-shaped part 74B Extension part

Claims (1)

[Claims] 1. A seat support member for supporting a seat is provided on a pedestal fixed to a floor of a passenger compartment of a vehicle, and a first pin member and a second pin member are provided on a lower surface of the seat support member so as to protrude therefrom. A first guide groove for movably engaging the first pin member and a second guide groove for movably engaging the second pin member are formed on the upper surface of the pedestal facing the lower surface of the member. And the second guide groove have one end and the other end respectively contacting the first pin member and the second pin member, and the first guide groove is provided rearward of the second guide groove. Is provided in the form of an arc having a radius centered on the other end of the second guide groove, with one end disposed closer to the door opening side and forward than the other end, and the second guide groove is centered on the other end of the first guide groove. And an extending portion connected to the arc-shaped portion and extending toward the door opening side, with one end being the other end. The seat support member is provided at the door opening side and forward from the end, and the seat support member abuts a first pin member on one end of the first guide groove and a second pin on the other end of the second guide groove.
A first state in which the seat is positioned frontward by contacting the pin member, and a first pin member abutting the other end of the first guide groove and a second pin member abutting the other end of the second guide groove. A second in which the front end of the door opening side of the seat is turned backward with respect to the front direction, and the seat is turned to a required angle to the side toward the door opening.
In the state, the second pin member is moved along the arc-shaped portion of the second guide groove around the first pin member abutting on the other end of the first guide groove to move the seat further toward the door opening than in the second state. A third state in which the seat is directed to the required angle sideways; and a seat in a third state in which the first pin member is in contact with one end of the first guide groove and the second pin member is in contact with one end of the second guide groove. A fourth state in which the seat is turned to a position closer to the door opening and to the side toward the door opening.