JPS5942262Y2 - bench type seat - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a bench-type seat such as a vehicle seat, and in particular allows the angle of a seat cushion of a rear seat of a vehicle to be adjusted.

Conventionally, some bench-type seats such as the rear seats of vehicles are equipped with a sliding mechanism that adjusts the front and rear positions, but most seats are fixed to the floor and do not allow the occupant to move forward or backward. Since the angle of the seat cushion cannot be adjusted according to the customer's preference, it is easy for the seat cushion to shift forward when seated.Therefore, the pad holder that makes up the seat cushion and the shape of the pad have been improved, etc. There is an inconvenience that the seat cannot be adjusted to the preferences of the seated person.

Therefore, the present invention is for use in vehicles, etc., in which a bench-type seat is provided with an angle adjustment device in the front part of the seat cushion, and the front part can be adjusted up and down to obtain the seat angle according to the preference of the seater. This is a bench-type seat.

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

In the figure, 1 indicates the entire rear seat for a vehicle, 2 is a seat cushion, and 3 is a seat back. The seat cushion 2 is equipped with an angle adjustment device so that the seat angle can be adjusted as desired.

This angle adjustment device is provided symmetrically on both sides of the front part of the seat cushion 2, and is composed of a locking/unlocking mechanism 5 attached to the cushion frame 4 and a sector leg mechanism 6 fixed to the floor side of the vehicle body. Ru.

The locking/unlocking mechanism 5 is installed on a mounting plate 7 arranged on both sides of the cushion frame 4, and has a locking pin 12 at the tip at the rear of a bracket 11 fixed to the mounting plate T.
An arm 13 having an operating plate 15 affixed thereto is rotatably pivoted by a shaft pin 14, and the end of an operating rod 16 to which an operating plate 15 is fixed is pivotally supported at the front part of the casing. One end 12a of the locking pin 12 is inserted into and engaged with the hole 17, and the arm 13 rotates around the shaft pin 14 via the locking pin 12 as the operation plate 15 is rotated by the operation rod 16. The rotated and twisted operating plate 15 is biased by a spring 18 so as to be constantly rotated rearward together with the operating rod 16.

The prescription sector leg mechanism 6 is fixed to the lower side of the floor surface of the vehicle body, and the leg body 1 protrudes from a window hole 7a formed in the mounting plate 7.
At 9, a sector gear 20 having a plurality of teeth is pivotally supported by a shaft pin 21, and the end of the operating rod 16 is inserted through a pipe member 22 into the middle part of the sector gear 20, that is, at a position between the teeth and the shaft support. The other end 12b of the locking pin 12 is engaged with the teeth of the sector gear 20 when the arm 13 rotates forward.

The locking/unlocking mechanism 5 and the sector leg mechanism 6 configured as described above are disposed symmetrically on both front sides of the cushion frame 4 and are interlocked via the operating rod 16.

The operating rod 16 has a central portion bent into a crank shape, and a connecting piece 23 is rotatably attached to the crank-shaped rear 16a, and is fixed to the connecting piece 23 and approximately at the center of the front edge of the cushion frame 4. The operating rod 16 is connected by a wire 26 to an operating lever 25 which is rotatably supported by a bracket bearing 24, and the operating rod 16 is rotated by vertical movement of the operating lever 25.

Note that the bracket bearing 24 has a guide piece 2 located below the shaft support of the operating lever 25 and on which the wire 26 is slidably guided.
4a is installed.

Further, at the rear of the cushion frame 4, that is, at the rear of the mounting plate 7, a hook 27 is formed by a cut in the lower surface and bends forward, and this hook 27 is engaged with a "shaped support piece 28 fixed to the floor of the vehicle body." is configured to do so.

A seat cushion 2 is formed by attaching a hat holder, a pad and an outer skin to this cushion frame 4 as usual,
This seat cushion 2 is installed on the floor surface of the vehicle body by engaging the hook 27 and all supporting pieces 26 of the cushion frame 4 and fixing the legs 19 of the sector leg mechanism 6.

Next, the seat angle adjustment operation of the seat cushion 2 will be explained.

When the seat cushion 2 is in the normal position, as shown in FIG. The locking pin 12 of the arm 13 of the locking/unlocking mechanism 5 engages to lock the sector gear 20, and by locking the sector gear 20, the cushion frame 4 is locked via the operating rod 16. held in normal position.

To adjust the seat cushion 2 to the required angle (upward angle) from this state, first pull up the operating lever 25, and the crank-shaped part 16a of the operating rod 16 is pulled via the wire 26 and the connecting piece 23, so that the operating lever 25 is pulled up. 16 is rotated with respect to the bracket 11 against the biasing force of the spring 18, and with this rotation, the operation plate 15 is rotated forward, and the locking pin 12 that is engaged with this elongated hole 17 is elongated. The arm 13 is pushed up and moved along the positional movement of the hole 17.

In this way, when the locking pin 12 is pushed up and separated from the teeth of the sector gear 20, the sector gear 20 is moved to the leg 19.
The front part of the cushion frame 4 is unlocked.

Therefore, the front part of the seat cushion 2, that is, the cushion
When the front part of the frame 4 is lifted, the support piece 28 of the rear hook 27
The sector gear 20 is tilted using the engaging portion as a fulcrum, and accordingly, the sector gear 20 is pulled up via the operating rod 16 and rotated in the upright direction with respect to the leg body 19 about the pivot support provided by the pivot pin 21. .

With the cushion frame 4 tilted to a desired angle in this manner, when the operating lever 24 is released, the operating plate 15 is moved along with the operating rod 16 to the spring 18.
Therefore, the arm 13 is rotated forward via the one end side 12a engaged with the elongated hole 17 of the locking pin 12, and the other end side 12a of the locking pin 12 is rotated forward. The sector gear 20 is engaged with opposing teeth of the gear 20, and due to this engagement, the sector gear 20 is locked in a rotated state in the upright direction.

Due to this upright locking of the sector gear 20, the operating rod 16 is supported with the insertion portion of the sector gear 20 positioned above the pivot support of the sector gear 20 relative to the leg body 19, and the cushion frame 4 is moved to the desired position. It is held in an inclined position (Fig. 5).

In this way, the seat cushion 2 can be adjusted to a desired angle.

The sector gear 20 of this example has three tooth grooves in which the locking pin 12 is engaged, but by forming a large number of tooth grooves, the angle adjustment range and the number of adjustment stages of the seat cushion 2 can be adjusted. Alternatively, instead of the locking pin 12 that engages with the sector gear 20, a plurality of teeth may be formed on the arm 13 and the teeth may be engaged to lock the sector gear 20. In this case, the locking force acts in a distributed manner on the tooth portions of the sector gear 20, resulting in less damage to the tooth portions and more reliable locking.

The cushion frame 4 has a rear part that is U with respect to the vehicle floor.
The cushion frame 4 is pivotally supported by engaging a letter-shaped hook 27 with a thyroid-shaped support piece 28, and the upward tilting operation of the cushion frame 4 is performed in such a way that it is slightly pushed forward, but the rear part of the cushion frame 4 is It may be pivoted to the vehicle floor and the tilting operation may be performed using this pivot as the center of rotation.
In this case, the window hole 7a of the mounting plate 7 from which the leg body 19 is projected
It is necessary to form it so that it extends backwards.

As described above, according to the present invention, in a bench-type seat such as a rear seat of a vehicle, an angle adjustment device consisting of a locking/unlocking mechanism and a sector leg mechanism is provided on both front sides of the seat cushion. The devices on both sides are linked via the operating rod, and the operating rod is rotated by the operating lever at the approximate center of the seat cushion to release the lock on the devices on both sides.At the same time, the seat cushion is lifted and pushed down. Since the seat angle of the cushion is configured to be adjustable, the seat angle of the seat cushion can be arbitrarily adjusted according to the preference and physique of the person sitting on the seat, which eliminates discomfort when sitting and prevents the seat from shifting forward. The seat cushion improves the holding ability and allows the driver to take a stable sitting posture, resulting in good sitting comfort.In particular, if this invention is applied to a bench-type seat used for the driver's seat, the seat cushion can be used to maintain the optimal driving posture for the driver. It is extremely effective when applied to a vehicle seat when it can be adjusted to allow safe driving with little fatigue even during long-distance driving.

[Brief explanation of drawings]

Figure 1 is a perspective view of an example of a vehicle rear seat to which the present invention is applied, Figure 2 is a perspective view of an example of the same cushion frame, Figure 3 is an exploded perspective view of the main parts of Figure 2, and Figure 4. 5 is an enlarged sectional view of the cushion frame in a normal state, and FIG. 5 is an enlarged sectional view of the cushion frame in an inclined state. In the figure, 1 is a seat, 2 is a seat cushion, 4 is a cushion frame, 5 is a locking/unlocking mechanism, 6 is a sector leg mechanism, and 15 is an operating rod.

Claims (1)

[Scope of utility model registration request] In bench-type seats that can seat multiple people, the rear part of the seat cushion is pivotally supported on the floor, and the front part is locked.
An angle adjustment device consisting of an unlocking mechanism and a sector leg mechanism is arranged symmetrically and interlocked by an operating rod, and the end of the sector gear of the sector leg mechanism is pivoted so that it can freely rise and fall on the floor. The intermediate portion is pivotally connected to the operating rod, and the operating plate of the locking/unlocking mechanism is fixed to the operating rod and rotated integrally with the operating rod, and the sector gear The locking pin that is engaged with the sector gear is moved between an engaged position and a non-engaged position, and the operating rod is moved up and down approximately at the lower center of the front side of the seat cushion. the locking pin is engaged with the sector gear via the operating plate by fully rotating the operating rod by vertically moving the operating lever;
A bench type seat characterized in that the angle of the seat cushion is adjusted by moving the sector leg mechanism to a non-engaging position to lock and release the sector leg mechanism.