JPS6332513Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a seat for a two-door automobile that allows easy entry and exit from the front seat.

In general, two-door cars have large door openings to make it easier to get in and out of the rear seats. Some models are equipped with a walk-in mechanism that moves the front seats forward. By the way, in a vehicle equipped with such a walk-in mechanism, if the walk-in mechanism is activated while a front seat passenger is seated, it will be very uncomfortable for the front seat passenger. In view of this, conventionally, the
In the device described in Publication No. 68632, the walk-in mechanism is not activated when a front seat passenger is seated.

Furthermore, as mentioned above, as an example of a two-door automobile with a large door opening, which allows a front seat passenger sitting in the driver's seat or passenger seat to easily get on and off, there is a conventional method described in Japanese Utility Model Application No. 55-42640. The front seat was designed to rotate laterally in conjunction with the opening and closing of the door.

However, in a two-door car like this,
As mentioned above, since the door opening is large, the front seat is located almost in the center of the door opening, and when a front seat passenger gets in and out of the door, he/she must walk around the outside of the open door. Therefore, even though the door opening is large, it is not very easy to get in and out of the front seat, and this problem has not been solved at all even with the device described in the above-mentioned publication.

In view of this problem, the present invention is designed to allow the front seat to move backwards when the door is opened when no rear seat occupant is present, thereby making it extremely easy for the front seat occupant to use the entire large door opening. The purpose is to provide a seat for a two-door automobile that allows passengers to get on and off the vehicle.

That is, the present invention provides a front seat, either a driver's seat or a passenger's seat, that is movable back and forth, and a seat drive means that moves the seat back and forth. Front seat and rear seat occupancy detection means for detecting the state and door opening/closing detection means for detecting the opening and closing of the door are provided, and a seat drive means control circuit is provided, and the control circuit outputs a rear seat non-occupation signal and a door open signal. When receiving a front seat seating signal and a door close signal, the seat driving means is actuated so that the front seat moves rearward, and when a front seat seating signal and a door closing signal are received, the driving means is actuated so that the front seat moves forward. It is characterized by being configured in such a way as to force the user to move.

An embodiment of the present invention will be described below with reference to the drawings.

FIGS. 1a and 1b are a perspective view of the seat driving means and a perspective view of the unlocking plunger portion according to an embodiment of the present invention. In the figure, two left and right guide rails 2 are arranged on a floor panel 1 in the driver's seat area of the automobile in the front and back direction of the automobile (left and right in FIG. 1), and the guide rails 2 have a cross section. It is approximately C-shaped, and flange portions 2a integrally formed at the front and rear ends thereof are fixed to the floor panel 1 with bolts.

Inside the left and right guide rails 2, left and right moving rails 3 are installed so as to be able to slide back and forth, respectively. Continuing from this, upper and lower sliding surfaces 3a and 3b facing outward are integrally formed at the lower end. The left and right moving rails 3 are connected and fixed at their front and rear ends by two band-shaped front and rear connecting plates 3c and 3d.

Further, the front and rear connecting plates 3c and 3d are connected and fixed at their respective centers with a rack plate 3f, and a rack 3e is provided on the lower surface of the rack plate 3f.
is formed. A seat drive motor 4 is bolted and fixed on the rear floor panel 1 between the left and right guide rails 2, and a pinion 5 is fixed to the rotating shaft of the seat drive motor 4. is engaged with the rack 3e of the rack plate 3f.

Furthermore, a mounting bracket 7 for a locking device 6 is bolted to the floor panel 1 in front between the left and right guide rails 2, and a rectangular base plate 7a of the mounting bracket 7 has a horizontal section on the center front side. A U-shaped support portion 7b is integrally formed. There are two lock pieces 8 on the left and right sides of the support part 7b.
A lock arm 8 is fitted in which a fixed connecting portion 8b connecting the two is integrally formed, and the front portion of the lock arm 8 is connected to the support portion 7 by a rotation shaft 9.
It is rotatably supported on b. Above lock piece 8
The rear end portion of a is formed in a C-shape so as to be able to engage with the rear end surface of the front connecting plate 3c, and is further connected to the lock piece 8a and the mounting bracket 7.
An engagement spring 10 is interposed between the lock arm 8 and the base plate 7a, and the lock arm 8 is urged to rotate clockwise in the drawing. Note that 9a is a cotter pin for preventing the rotation shaft 9 from slipping out.

Further, a lock release plunger 11 is attached to the rear of the base plate 7a of the mounting bracket 7, and the piston rod 11a of the plunger 11
is a recess 3f formed in the front connecting plate 3c.
A lock release confirmation switch 12 is attached to the front left side of the board 7a, and a knob 12a of the switch 12 is attached to the front left side of the board 7a.
is formed integrally with the front end of the locking piece 8a or is pressed by the locking shoe 8c.

Further, a stopper member 13 having an L-shaped side surface is bolted and fixed on the floor panel 1 on the left side (right side in FIG. 1) of the seat drive motor 4, and the stopper member 13 is attached to the rear connecting plate 3d. It is designed so that it can come into contact with the front end surface of.

Left and right seat mounting rails 14 are respectively attached to the left and right moving rails 3 so as to be slidable back and forth, and the seat mounting rails 14 have an approximately C-shaped cross section like the guide rail 2. The front seat has two seat mounting bolts 14a, one for mounting the front seat and the other for mounting the front seat, facing upward.

Next, FIG. 2 shows the sheet driving means control circuit 20 of this embodiment. In the figure, 21 is a battery, 2
2 and 22' are mutually interlocking door switches that detect the opening and closing of the door, and the switches 22 and 22'
The common terminals 22a and 22a' of the battery 2
Connected to the positive and negative terminals of 1. Also 2
3, 23' is the seat back 43 of the front seat 42.
(See FIG. 3) are mutually interlocking seat angle switches that detect the angles of the switches 23 and 2.
A seat drive motor 4 for driving a front seat 42 is connected between the common terminals 23a and 23a' of the seats 3'. The seat drive motor 4 is a motor whose rotating direction is reversed depending on the direction of current flow, and is adapted to automatically stop when the front seat 42 is locked. And the seat angle switch 23
The vertical terminal 23b is the open terminal 22 of the door switch 22.
b, and its inverted terminal 23c is grounded. Further, the vertical terminal 23b' of the seat angle switch 23' is connected to the open terminal 22b' of the door switch 22' via a diode 29d, and the vertical terminal 23b' of the seat angle switch 23' is connected to the open terminal 22b' of the door switch 22'.
3c' is connected to the positive terminal of the battery 21.

Further, 25 is a front seat seat switch for detecting the seating of the front seat 42, one end of which is connected to the close terminal 22c of the door switch 22, and the other end connected to the open terminal 22b' of the door switch 22'.
28 is a rear seat 43 behind the front seat 42
This is a rear seat seating switch that detects the seating of a person (see Figure 3), and its common terminal 28a is connected to the common terminal 23a of the seat angle switch 23, its connecting terminal 28b is opened, and its leaving terminal 28c is delayed. A circuit 30 is connected. 27 is the first set/
This is a reset relay, and the signal from the close terminal 22c of the door switch 22 is inputted to the set input 27a via the front seat seating switch 25 and the diode 26, and the output of the delay circuit 30 is inputted to the reset input 27b. There is. When the relay 27 is set, it is energized to close the relay contact 27c, causing the current from the common terminal 23a of the seat angle switch 23 to flow through the lock release plunger 11, and turning on the lock release confirmation switch 12. One end of the lock release confirmation switch 12 is connected to the release terminal 28c of the rear seat seating switch 28, and the other end is connected to the second set/reset relay 2.
9 is input to the set input 29a. When the relay 29 is set, it is energized and the relay contact 29c is connected in parallel to the diode 29d.
and closes the reset input 2 of the relay 29.
An automatic stop signal for the seat drive motor 4 is input to 9b.

Furthermore, 31 is the adjacent rear seat 4 next to the above rear seat.
5 (see Fig. 3), its common terminal 31a is connected to the positive terminal of the battery 21, its remote terminal 31c is open, and its connecting terminal 31b is connected to the above-mentioned terminal via a diode 32. Set input 2 of first set/reset relay 27
7a.

Next, the operation of this embodiment will be explained.

First, the operation of the sheet driving means shown in FIG. 1 will be explained.

When the seat drive motor 4 rotates forward, the movable rail 3 moves forward in the direction of arrow A due to the engagement between the pinion 5 and the rack 3e, and thereby the front seat 42 moves forward together with the seat mounting rail 14. When the moving rail 3 reaches near the front end position, the connecting plate 3c on the front side of the moving rail 3 pushes up the rear end of the locking piece 8a, and the engagement spring 1
When the moving rail 3 is rotated as shown by the dashed line in FIG.
0, it rotates to the original position and engages with the rear end surface of the connecting plate 3c, and the front end surface of the rear connecting plate 3d comes into contact with the stopper member 13, and the moving rail 3 stops, thereby causing the above-mentioned The seat drive motor 4 is locked and automatically stops. In this manner, the front seat 42 is held in its forward end position, that is, in its normal operating position.

Further, when the lock release plunger 11 is turned on, the piston rod 11a is released from the lock arm 8.
Push up the fixed connection part 8b of the lock arm 8.
is rotated, thereby releasing the engagement between the lock piece 8a and the connecting plate 3c. At this time, the limit shoe 8c at the front end of the lock piece 8a presses the knob 12a of the lock release confirmation switch 12, turning the switch 12 on.

Further, when the seat drive motor 4 rotates in the reverse direction after the lock is released, the moving rail 3 moves backward, and the connecting plate 3
c stops when it comes into contact with the stopper member 13,
At the same time, the seat drive motor 4 also stops, thereby holding the front seat 42 at its rear end position.

Note that the seat mounting rail 14 is the same as the moving rail 3.
After adjusting the front seat 42, which is fixed on the mounting rail 14, back and forth to the desired position, the seat mounting rail 14 can be slid back and forth on the upper part of the seat mounting rail 14 using a lock handle (not shown). If it is fixed to the moving rail 3, the front seat 42 can be held in a position according to the preference of the front seat occupant, that is, in a normal operating state position.

Next, the operation of the device of this embodiment corresponding to the getting on and off of the vehicle will be explained using the system diagram shown in FIG.

First, the basic operations of the apparatus of this embodiment, that is, the basic operations, are the following four movements.

If the door 41 is opened when the user is not seated in the rear seat 44, the front seat 42 moves rearward.

When the user sits on the front seat 42 and closes the door 41, the front seat 42 moves forward.

If the door 41 is opened and the seat back 43 of the front seat 42 is folded down when the user is not sitting on the front seat 42, the front seat 42 moves forward.

When a rear seat occupant 47 moves to an adjacent rear seat 45 while a door 41 is opened with a seat back 43 of a front seat 42 upright, the front seat 42 moves rearward.

In FIG. 3, when no one is in the car and the door 41 is closed, the front seat 42 is located at the rear and its seat back 43 is upright. Occupant 46 enters door 4
Opening 1 is the state in which 51 in FIG. 3 starts riding. From this state 51, the front seat occupant 46 sits on the front seat 42 and closes the door 41 (state 5
2), the front seat 42 moves forward and is locked by the above basic operation (state 53), and when the door 41 is opened from this state 53 (state 54), the front seat 42 is unlocked and locked. The basic movement described above causes the vehicle to move backwards (state 55), and the front seat occupant 4
6 gets off the vehicle and closes the door 41 (state 56),
When the alighting is completed, the state returns to the state 51 described above.

Further, in the above state 51, when the rear seat occupant 47 tries to get into the vehicle, the seat back 4 of the front seat 42
3 is folded forward (state 60), the front seat 42 is moved forward and locked by the basic operation described above (state 61), and then the rear seat occupant 47 gets on the vehicle and the seat back 43 is raised (state 62). , the front seat passenger 46 gets in the vehicle and closes the door 41 (state 63).
That will happen. After that, the door 41 is opened, the front seat occupant 46 gets out of the vehicle (state 64), the seat back 43 is folded forward, and the rear seat occupant 47 gets out of the vehicle (state 65).
Raise the seat back 43 (state 66)
Then, the front seat 42 is unlocked and moved backward according to the basic operation described above (state 67).
When the door is closed (state 68), disembarkation is completed and the state returns to state 51. Note that here state 6
2 may proceed directly to state 65.

Further, after the above state 51, the rear seat occupant 47 may move from the adjacent rear seat 45 to the rear seat 44 behind the front seat 42,
In such a case, when the seat back 43 of the front seat 42 is folded down (state 57), the front seat 4
2 moves forward and is locked by the above basic operation (state 58), and when the rear seat occupant 47 gets out of the vehicle and raises the seat back 43 (state 59), the front seat 42
The lock is released and the state is moved back to state 67 by the basic operation described above.

Further, after the above state 62, when the rear seat occupant 47 moves to the adjacent rear seat 45 (state 69), the front seat 42 is unlocked and moved backward by the above basic operation (state 70), State 5 above
It will return to 2 or 60.

Next, the operations of the sheet driving means control circuit 20 in the basic operations described above are explained in FIGS. 4 to 7.
This will be explained using figures.

[Basic Operation (see Fig. 4)] When performing this basic operation, as is clear from the explanation of the system diagram in Fig. 3, in the preceding stage, the door 41 is always closed, the front seat 42 is in the forward end position with a front seat occupant 46 seated, and no one is seated in the rear seat 44. Therefore, the front seat occupancy switch 25 is on, and the door switches 22, 22' are tilted to the close terminals 22c, 22c' side, so that a set signal is input to the first set/reset relay 27 and the relay contact 27c is on. When the door 41 is opened in this state, the door switch 2
The seat angle switches 23, 23' are inclined toward the upright terminals 23b,
4, the unlocking plunger 11 is turned on by the current ₁ in Fig. 4, the lock of the front seat 42 is unlocked, and the unlock confirmation switch 12 is turned on, and since the rear seat occupation switch 28 is turned on by the remote terminal 28c, a set signal is input to the second set/reset relay 29 by the current ₂ in Fig. 4, the relay contact 29c is turned on, and the seat drive means control circuit 20 is in the state shown in Fig. 4. As a result, the current ₃ shown in the figure flows from the battery 21 to the ground through the door switch 22, the seat angle switch 23, the seat drive motor 4, the seat angle switch 23', the relay contact 29c, and the door switch 22', and as a result, the seat drive motor 4 rotates in the reverse direction to move the front seat 42 backward.

[Basic operation (see Figure 5)] In this case, the front seat occupant 46 is seated on the front seat 42, so the front seat switch 25 is on, and if the door 41 is closed in this state, , the door switches 22, 22' are tilted toward the close terminals 22c, 22c', and the seat angle switches 23, 23' are tilted toward the vertical terminals 23b, 23b'. It will be in the state shown. As a result, the current ₄ shown in the same figure changes to the battery 2.
1 to seat angle switch 22, front seat seating switch 25, diode 29d, seat angle switch 2
3', seat drive motor 4, seat angle switch 2
3. Flows to ground through the path of door switch 22',
As a result, the seat drive motor 4 rotates forward to move the front seat 42 forward.

[Basic Operation (See FIG. 6)] In this case, since no passenger is seated in the front seat 42, the front seat occupancy switch 25 is off. In this state, when the door 41 is opened and the seat back 43 is folded down, the door switches 22, 22' are turned on.
22b' side, and the seat angle switch 23, 23'
6. The seat driver control circuit 20 is then in the state shown in FIG.
As a result, a current ₅ shown in the figure flows from the battery 21 through the seat angle switch 23', the seat drive motor 4 and the seat angle switch 23 to earth, causing the seat drive motor 4 to rotate in the forward direction and move the front seat 42 forward.

[Basic operation (see Figure 7)] In this case, when the rear seat occupant 47 moves from the rear seat 44 to the adjacent rear seat 45, the rear seat switch 28 moves to the release terminal 28c side, and the rear seat occupant 47 moves from the rear seat 44 to the adjacent rear seat 45. The switch 31 falls to the contact terminal 31b side, and as a result, the current ₆ shown in Fig. 7 flows, the first set/reset relay 27 is turned on, and the relay contact 27c is turned on. current of
₇ is played, the front seat 42 is unlocked, and the lock release confirmation switch 12 is turned on. Therefore, current ₈ in Figure 7 flows and the second
The set/reset relay 29 is turned on, the relay contact 29c is closed, and the door switches 22, 2 are turned on.
2', the seat angle switches 23, 23' are tilted toward the open terminals 22b, 22b' and the vertical terminals 23b, 23b', so that the seat drive means control circuit 20
is in the state shown in FIG. As a result, the current ₉ shown in the figure is transferred from the battery 21 to the door switch 2.
2, seat angle switch 23, seat drive motor 4, seat angle switch 23', relay contact 29c,
Flows to ground via the path of door switch 22',
As a result, the seat drive motor 4 rotates in the opposite direction, causing the front seat 42 to move backward.

In the two-door automobile seat of this embodiment configured and operated in this manner, when the rear seat occupant 47 is not present, the front seat occupant 46 tries to get out of the vehicle and the door 41 closes.
When the front seat 42 is opened, the front seat 42 retreats to its rear end position and is held at that rear end position until the front seat occupant 46 next gets on the vehicle. Since the seat 42 moves forward to its normal driving position, the front seat occupant 46 can get in and out of the vehicle very easily, and can assume the normal driving position immediately after seating.

Also, if the front seat passenger 46 is not present, the rear seat passenger 47
When a person tries to get on or off the seat, folds down the seat back 43 and opens the door 41, the front seat 42 moves forward to its front end position, making it very easy for the rear seat occupant 47 to get on and off. Since the front seat 42 does not move backward, the rear seat occupant 47 does not feel cramped.

In the above embodiment, a case has been described in which the front seat performs the basic movements, but the front seat may perform only the basic movements.

As described above, according to the two-door automobile seat according to the present invention, either the driver's seat or the front passenger's seat is provided so as to be movable back and forth, and the seat drive for moving the front seat back and forth is provided. provide means,
Front seat and rear seat seating detection means for detecting the seating state of the front seat and the rear seat behind the front seat, and door opening/closing detection means for detecting opening/closing of the door are provided, and a seat drive means control circuit is provided for controlling the seat driving means. The circuit operates the seat drive means to move the front seat rearward when a rear seat non-seating signal and a door open signal are received, and when a front seat seating signal and a door close signal are received, Since the seat driving means is operated so that the front seat moves forward, it is possible to get on and off the front seat very easily.

[Brief explanation of the drawing]

FIG. 1a is a perspective view of a seat driving means for a two-door automobile seat according to an embodiment of the present invention, FIG. 1b is a perspective view of a lock attachment part of the above embodiment, and FIG.
The figure is a circuit diagram of the sheet driving means control circuit of the above embodiment, FIG. 3 is a system diagram for explaining the operation of the above embodiment, and FIGS. 4 to 7 are for explaining the operation of the circuit of FIG. 2. FIG. 2, 3, 3e, 4, 5, 6... Sheet driving means (guide rail, moving rail, rack, motor,
20... Seat driving means control circuit, 22, 22'... Door opening/closing detection means (door switch), 25... Front seat seating detection means (front seat seating switch), 28... Rear seat seating Detection means (rear seat seating switch), 41...door, 42...front seat, 44...rear seat.

Claims (1)

[Scope of utility model registration request] A front seat, either a driver's seat or a front passenger's seat, that moves back and forth; a seat driving unit that moves the front seat back and forth; a front seat seating detection unit that detects a seating state of the front seat; Rear seat seating detection means for detecting a seating state of a rear seat behind the front seat, door opening/closing detection means for detecting opening/closing of a door, and outputs from the rear seat seating detection means and the door opening/closing detection means. When the signal is received and the rear seat is not seated and the door is open, an output signal is generated to operate the seat driving means to move the front seat rearward, and when the front seat is seated and the door is closed, the output signal is generated. A seat for a two-door automobile, comprising: a seat drive means control circuit that generates an output signal for operating the seat drive means so that the front seat moves forward.