JPS58199233A - Automobile bench seat - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] The present invention relates to a bench type seat for an automobile.

BACKGROUND ART Conventionally, pan-type automobiles, two-door automobiles, and the like are known in which the front seats are folded forward to improve the ease of getting in and out of the rear seats.

However, as shown in the side view of FIG. It is not always easy to get in and out of the rear seat because the seat back cannot be folded forward and the front seat can simply be slid forward.

Also, in conventional sheets of this type.

Even if the seat back is tilted all the way back using the reclining adjuster, as shown in the side view in Figure 1, there is a step between the top surface of the seat cushion and the top surface of the seat back, making it uncomfortable to use as a bed. Even if the seat back is pushed all the way forward, the back surface of the seat back is not level, so it is inconvenient to place luggage on top of it.

The present invention has been proposed in view of the above circumstances.The seat back of a pliers-shaped seat is divided, and each seat back can be independently folded forward. The seat can be walked in, and when the seat back is fully reclined, the top surface of the seat cushion and the top surface of the seat back are at the same height, so that it can be used as a bed. Another object of the present invention is to provide a pliers-type seat for an automobile, which allows the seat back to be folded forward in two stages to make the back surface of the seat back horizontal and to allow luggage to be placed on it.

To that end, the present invention provides a seat cushion.

A double seat back that is divided into left and right halves, and two parallel shafts, a lower reclining shaft and an upper forward-folding shaft, each mounted between a side of the seat cushion and each side of each seat back. a hinge structure, and a means for locking and unlocking the rotation of the seatback around the reclining axis and the circumferential rotation of the forward-folding axis at desired angles, respectively; is on the same plane as the cushion seat, and the back surface of the seat back is horizontal when folded forward.

An embodiment in which the present invention is applied to the second row seat of a pan-type automobile will be explained with reference to the drawings. FIG. 3 is a perspective view of the second row seat in FIG. 2, and FIG. When folded forward, the left seat is a perspective view with the left seat facing backwards. Figure 5 is a left side view of the left seat in Figure 3. Figure 6 is a side view of the left seat in Figure 5 in the walk-in state. 5 is a side view showing the seatback in a forward-folded state, and FIG. 8 is a side view showing the seatback in the rearward state in FIG. 6.

9 is a partially enlarged right side view showing the seat back in FIG. 5, FIG. 10 is a partially enlarged view showing the seat back in FIG. 5,
Figure 11 is a partially enlarged view showing the double hinge structure in Figure 1O, Figure 12 is an exploded perspective view of Figure 11, and Figure 13 is the
Figure 14 is an enlarged cross-sectional view of Figure 5, Figure 15 is a plan view of Figure 14, and Figure 16 is a front view of Figure 14.
15 are perspective views of the walk-in lever, and FIG. 17 is a partial perspective view of FIG. 15.

In the above diagram, l is a bench-type seat cushion, and 2 is a separate left and right seat back.

3 is a reclining adjuster attached to the outer lower part of the seat back 2, and 4 is a seat cushion l.
A stand with a U-shaped cross section fixed to the lower part of both ends, 7 is made up of a lower rail 44 made of C-shaped steel fixed to the floor and an upper rail 13 made of C-shaped steel fixed to the stand 6 and inserted into the lower rail 44. 8 is a reclining operating lever that projects forward from the seat adjuster 3, and 9 is a walk-in operating pedal that projects rearward from the seat adjuster 3 and is integrally structured with the reclining operating lever 8.

10 is a forward-folding operation knob.

The upper ends of the levers 10a are fixed to each other, and the long and short levers at the lower end extend in parallel with an appropriate distance between them.
□With a two-pronged lever, use the pin installed on the short lever A
It is pivotally attached to a platen (platon) 14, and a slot is bored at its lower end. lOb is a two-pronged lever 10a stretched between the upper end of the two-pronged lever 10a and an A bracket 14 to be described later.
12 is a reclining axis for reclining the seat back 2 and pushing it backwards, and 13 is a forward-folding axis for folding the seat back 22 forward. The inner end is fixed to a free hinge bracket 22, which will be described later, and the outer end is fixed to an A sector gear 17, which will be described later. 14 are seat hacks 2 each
A bracket fixed to the outer sides of the seat back 2 with bolts and rotating the seat back 2 around the forward-folding shaft 13 via an E-ring;
15 is a B bracket whose upper end is fixed to an A sector gear 17 (described later) and whose lower end is pivotally connected to the reclining shaft 12; and 16 is a B bracket whose lower end is fixed to the register 6 with a plurality of bolts, and whose upper end is fixed to the reclining shaft 12. A projecting C bracket (17) is an A sector gear (18) fixed to the top of the B platen (15) with a bolt and centered on the axis of the forward-folding shaft (13).
19 is a C sector gear fixed with a bolt to the lower part of the B plattan) 15 and centered on the axis of the reclining shaft 12, and 19 has one end pivoted to a pin implanted in the A plattan) 14, and the other end is connected to the A sector gear 17. When the mating pawl is provided protrudingly, it is a locking pawl having a pin l9a implanted in both, pin 19a is inserted into the slot of the two-pronged lever loa, and pin 1 is inserted into the slot of the forked lever loa.
Due to the contact between 9a and the slot, the claw is biased in the direction of meshing with the A sector gear 17. 20 has one end C platan)
A C lock pawl, 22, has a protruding pawl that meshes with the C sector gear 18 at the other end when pivotally attached to the pin implanted in 16;
are attached along the inner lower part of the seat back 2, and when the upper end is fixed to the forward-folding shaft 13, the lower end is pivotally connected to the reclining shaft 12;
3 is a pin plate with a lock and a free hinge bracket 2
When the forward tilt shaft 13 is inserted into the seat back 2, the lock pin implanted therein will lock into the notch formed in the free hinge bracket 22. Acts as a stopper when on the rear side. 3
o is an eight-fin lever attached to the lower center of the seat cushion l and has a knob at the front end and has an L-shaped cross section; 31 is a cushion of the seat cushion 1; 32 is an upper surface of the cushion 7; 33 is a rear end of the walk-in lever 30, which is fixed to the frame 31, is planted downward, pivots the walk-in lever 30 through a hinge 34, and has an angular cross section and is bent into a crank shape. 35 is a release plate whose center is pivotally connected to the inner protrusion of the stand 6, and 36 is one end of each release member. Wires 37 are fixed to the front and rear side surfaces of the release member 33, and the other ends are fixed to the upper ends of the left and right release plates 35, respectively.The wires 37 have one end fixed to the front and rear ends of the release member 33, and the other ends for left and right reclining. The inner cable 38 is fitted into the hole 42 drilled in the C sector gear 18 of the adjuster 3, and the inner cable 38 is fitted onto the inner cable 37, with one end attached to the bracket 3.
It is fixed to the front and rear ends of 2, and the other end is the left and right C.
39 is a longitudinal rack plate fixed to the inside of a lower rail 44 buried in the floor and has racks carved on the side edges; 40 is a longitudinal rack plate fixed to a horizontal vertical plane. A rock brake whose upper end is pivoted to the inward protrusion of the stand 6 so as to be freely movable, and whose lower end is provided with holes that fit into the teeth of the rack plate 39), 4
Reference numeral 1 denotes a seat slide spring whose front ends are fixed to the inner protrusions of the lower rail 44 and whose rear ends are tensioned and fixed to the inner protrusions of the upper rail 43, respectively.

42 is a hole drilled in the C sector gear 18 to which one end of the inner cable 37 is locked, and 45 is a hole that is inserted into the C lock pawl 20 when a pin to be inserted into the long hole of the reclining operating lever 8 is implanted. This is an intermediate lever that has a long hole into which a pin is inserted.

When using such a device, if you step on the walk-in operation pedal 9 with one foot or pull up the reclining operation lever 8 by hand and rotate it in the direction of the arrow, as shown in FIG. 12, An intermediate lever 45 with a pin inserted into the long hole of the reclining operating lever 8 rotates in the direction of the arrow, and a pin inserted into the long hole of the intermediate lever 45 with a low insertion angle C.
When the lock pawl 20 rotates in the direction of the arrow, the C lock pawl 20 and the C sector gear 18 are disengaged, and the seat pack 2 rotates forward around the reclining shaft 12 due to the biasing force of a spring (not shown). do. When this rotation exceeds the set angle, the wire 37 is pulled, and the release member 33 is rotated clockwise around the pin 34, as shown in FIG. 1
As shown in FIG. 7, the release plate 35 rotates, and thereby the lock plate 40 rotates from the solid line position to the chain line position in FIG. 1 is pulled by the spring 41, and automatically moves forward along the slide assister 7, thereby moving in.

Walk-in operation pedal9. When the walk-in lever 30 is operated instead of the reclining operation lever 8, the seat back 2 is not tilted forward and the seat cushion 1
It simply moves forward due to the biasing force of the spring 41.

Now turn the walk-in lever 30 clockwise.
Although it is interlocked with the clockwise rotation of the release member 33, the walk-in lever 30 is not interlocked even if only the release member 33 is rotated clockwise. Also walk-in lever 30
Since the release member 33 is restricted by the bracket 32, it does not rotate counterclockwise.

Further, as shown in FIG. 11, when the forward-folding operation knob 10 is rotated counterclockwise against the biasing force of the spring 10b, the two-pronged lever 10a is simultaneously rotated counterclockwise and the slotted hole is rotated. The A lock pawl 19 rotates counterclockwise around the pivot pin due to the relationship between the A lock pawl 19 and the pin 19a, and the pawl is disengaged from the A sector gear 17, and the seat back 2 is unlocked. Therefore, by further tilting the seat back 2 forward around the forward tilt shaft 13, the back surface of the seat back 2 can be made completely flat. At that time, it goes without saying that the seat back 2 can be locked at a desired angle.

Furthermore, operate the reclining operation lever 8 to move the seat back 2 all the way to the rear.
can be extended to the same height as the seat cushion l. At that time, it goes without saying that the seat back 2 can be locked at a desired angle.

According to such a device, the following effects can be achieved.

(1) Even with a bench-type seat, the vane-type seat can be used as a walk-in by individually folding one of the left and right seatbacks forward, so the passenger can move toward the other seatback. Even if you are seated, it is easier to get in and out of the rear seats.

(2) A double with a reclining axis and a forward-folding axis installed side by side on the reclining adjuster.

By adopting a hinge, when the seat is pushed all the way back, the top surface of the seat cushion and the top surface of the seat pack are on the same plane, making it comfortable to use this device in a bed. When the seatback is fully folded forward, the back of the seatback becomes horizontal, so you can place luggage on top of it.

(3) Since the seat slide adjuster is buried in the floor, guide rails, mounting brackets, etc. do not get in the way when getting on and off.

In short, according to the present invention, a seat cushion, a seat back divided into left and right halves, a lower reclining shaft mounted between a side of the seat cushion and a side of each seat back, and a lower reclining shaft and an upper a double hinge structure having two parallel axes of the forward-folding axis, and means for locking and unlocking the rotation of the seat back around the reclining axis and the rotation of the circumference of the forward-folding axis at desired angles, respectively. The above-mentioned seat back is on the same plane as the above-mentioned cushion seat when in the rear position, and the back surface of the above-mentioned seat back is on a horizontal plane when in the forward position, thereby providing an automobile bench that is easy to get on and off from and easy to use. Because you will get a mold sheet.

The present invention is extremely useful industrially.

[Brief explanation of the drawing]

FIG. 1 is a side view of a known car seat, FIG. 2 is a side view of a known pan-type car, and FIG. 3 is a perspective view showing an embodiment in which the present invention is applied to a second row seat of a pan-type car. Figure 4 is a perspective view of the left seat in Figure 3 when the right seat is folded forward, Figure 5 is a left side view of the left seat in Figure 3, and Figure 6 is a left side view of the left seat in Figure 3. FIG. 5 is a side view of the walk-in state; FIG. 7 is a side view of FIG. 5 with the seat pack folded forward; FIG. 8 is a side view of FIG. 9 is a partially enlarged right side view showing the seat back in FIG. 5, FIG. 10 is a partially enlarged view showing the seat back in FIG. 5, FIG. 11 is a partially enlarged view showing the double hinge structure in FIG. 10, Figure 12 is the first
1 is an exploded perspective view of FIG. 1, FIG. 13 is an enlarged front view of the left seat of FIG. 5, FIG. 14 is an enlarged cross-sectional view of FIG. 5, and FIG. 15 is a plan view of FIG. 14. FIG. 16 is a perspective view of the walk-in lever shown in FIGS. 14-15, and FIG. 17 is a partial perspective view of FIG. 15. l Seat cushion, 2... Seat back, 3... Reclining adjuster, 4... Free hinge, 5...
Backboard, 6..Stand, 7..Slide adjuster, 8..Reclining operation lever, 9..Walk-in operation pedal, 1'0..Folding operation knob, loa.
・Two-pronged lever, lOb... Spring, lOc... Pin, 10c'... Shaft, 12-. Reclining axis, 13.
・Forward axis, 14...A bracket, 15...B bracket, 16...C bracket, 17...A sector gear, 1
8..C 11° tag, 19..A lock claw, 19A..pin, 20.
・C lock claw, 22 ・・Free hinge bracket, 23
...Bimp V- with lock), 30..Walk-in lever, 31..Cushion frame, 32..Bracket, 33..Release member, 34..Pin, 35..y
IJ-zubrate, 36...wire, 37...inner cable, 38...outer cable, 39...rack plate, 40...lock plate, 41...spring, 42...hole, 43
...Upper rail, 44...Lower rail, 45 fist/middle lever, Sub-Agent Masafumi Tsukamoto, Patent Attorney Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 16 Figure 17 figure

Claims (1)

[Claims] A seat cushion, a seat back divided into left and right halves, and two parallel shafts, a lower reclining shaft and an upper forward-folding shaft, which are installed between the side of the seat cushion and the respective side of each seat back. comprising a double hinge structure having a shaft, and means for locking and unlocking the rotation of the seat back around the reclining shaft and the forward tilting shaft at desired angles, respectively;
A bench-type seat for an automobile, characterized in that the seat back is on the same plane as the cushion seat when the seat is in the rear position, and the back surface of the seat back is on a horizontal plane when the seat is folded forward.