JPH0432995Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to an elevating mechanism for a side holder portion, which is particularly suitable for bucket-type seats.

[Conventional technology]

BACKGROUND ART A so-called bucket-type seat, which is generally installed in sports-type automobiles, has side holder portions that are raised relatively high in order to enhance the ability to hold the body of a seated person.

However, while forming the side holder portions high improves the ability to hold the body, it also impairs the ease of getting on and off.For this reason, conventionally, the ability to hold the body has been sacrificed to ensure ease of getting on and off. was.

Recently, there have been devices in which the side holder portions are movable up and down in order to achieve both body-holding properties and ease of getting on and off, such as the one disclosed in Japanese Utility Model Publication No. 170030/1983.

[The problem that the idea attempts to solve]

However, in the seat device disclosed in Japanese Utility Model Publication No. 59-170030, the height is changed by lowering the side holder toward the door; required a certain gap between the seat and the door. Therefore, it could not be installed in automobiles with limited interior space.

An object of the present invention is to provide a side holder part elevating mechanism for an automobile seat that can ensure good body holding ability for an occupant and ease of getting on and off the vehicle, and does not require a gap between the seat and the door.

[Means for Solving the Problems] In order to solve the above-mentioned conventional problems, the present invention provides a system in which a side holder part on the passenger side, which is provided separately from the main seating part, can be moved up and down through a link mechanism. The link mechanism is supported by the main seating part, and the link mechanism has upper and lower ends between the front and rear brackets installed opposite to the main seating part and the front and rear end surfaces of the insert box installed inside the side holder part. A four-bar link is formed by arranging link members, and the front and rear corresponding link members are connected via a connecting rod, and one link member of the connecting rod is rotated in the vertical direction by a predetermined driving means. The reason is that it has a structure that can be moved.

[Effect]

According to the above configuration, when the occupant gets on or off the vehicle, the side holder portion is lowered to ensure good ease of getting on and off the vehicle, and when the occupant is seated, the side holder portion is raised to ensure sufficient body holding ability for the occupant.

〔Example〕

Next, embodiments of the present invention will be described based on the attached drawings.

FIG. 1 is a partially exploded perspective view of the seat, and FIG. 2 is an enlarged view of the seat in the direction of arrow A.

In the figure, 1 is a main seating part, and side holder parts 3 and 4 are provided on the left and right sides of this main seating part 1.
At least the side holder part 3 on the getting-on/off side is provided separately from this main seating part 1, and is connected to a predetermined link mechanism L.
It is attached via.

This link mechanism L is configured as described below.

Brackets 7 and 8 are fixed to, for example, a seat frame (not shown) at a predetermined interval in the front-rear direction on the inner side of the main seating portion 1 on the passenger side.

Upper link members 9 and 11 are rotatably supported at substantially upper end portions of the brackets 7 and 8, respectively, and are oriented toward the side holder portion 3.

Further, lower link members 10 and 12 are rotatably attached to the lower side of the upper link members 9 and 11. These lower link members 10 and 12 are connected to connecting rods 1 that are rotatably supported in connecting holes 7a and 8a that are coaxially formed approximately in the center of the brackets 7 and 8.
By being symmetrically fixed to both ends of the link members 4, the link members 9 and 11 are configured to be rotatable on the same plane.

Further, the working end of each link member 9 to 12 is connected to an insert box 1 provided inside the side holder portion 3.
3, and are rotatably connected to both front and rear end surfaces 13a, 13b of 3, respectively.

In this way, four-bar links are formed at both the front and rear end surfaces 13a, 13b of the insert box 13, and the front and rear four-bar links are connected by a connecting rod 14.

Also, the rear end of the lower link member 10 that constitutes the front four-bar link (on the opposite side from the side holder part 3)
, a fan-shaped gear 10 centered on a connecting rod 14 is shown.
a is formed.

On the other hand, a drive means (in this example, a drive motor 15) for driving the link mechanism L is installed at a predetermined position of the main seating portion 1, and a pinion gear 17 is attached to the rotation shaft of the drive motor 15. It is being The rotation of the drive motor 15 is transmitted to the lower link member 10 by this pinion gear 17 being meshed and connected with the sector gear 10a.
The link mechanism L is configured to operate.

By configuring the link mechanism L as described above, the side holder portion 3 is supported by the main seating portion 1, and by rotating the drive motor 15 in forward and reverse directions, the side holder portion 3 is supported in the vertical direction with respect to the main seating portion 1. It is configured so that it can be raised and lowered.

Next, link mechanism L configured as above
The control means for controlling the operation will be briefly explained.

FIG. 4 (or FIG. 5) shows a switching circuit of the side holder part lifting/lowering mechanism.

This switching circuit consists of a forward/reverse rotation circuit for the drive motor 15 and a limit switch circuit for regulating the raising and lowering positions of the side holder portion 3.

The forward and reverse rotation circuit includes switches 21 and 22 for rotating the drive motor 15 in forward and reverse directions, and the limit switch circuit includes limit switches 23, 24, 25, and 2.
Contains 6. Switches 21 and 22 are switch 23,
24.

Also, although not shown, switches 21 to 24
is configured to operate in conjunction with the opening/closing operation of the door.

In this example, the configuration is as described above.
This configuration achieves the following effects.

FIG. 4 shows the circuit state when the door is opened, and FIG. 5 shows the circuit state when the door is closed.

When the door is opened, the switches 21 and 22 are placed in the "down" position, the drive motor 15 rotates, and the link member 10 rotates clockwise in FIG.
The side holder 3 descends. When the side holder 3 reaches the lower end position, the link member 10 contacts the limit switch 25 and the limit switch 25 becomes the "open" position, the rotation of the drive motor 15 is stopped, and the side holder part 3 is held at the lower end position. This ensures ease of getting on and off the vehicle.

Next, when the occupant sits on the seat and the door closes, the switches 21 and 22 are switched to the "up" side as shown in FIG. 5, and in conjunction with this, the switch 23 is switched from the "open" position to the "closed" position. position, the switch 24 switches from the "closed" position to the "open" position, respectively. As a result, the drive motor 15 rotates in the opposite direction to the direction when the door is opened, the link member 10 rotates to the left in the second figure, and the side holder portion 3 rises. Then, when the side holder portion 3 reaches the upper end position, the link member 10 contacts the switch 26, the switch 26 becomes the "open" position, and the drive motor 15 stops. As a result, the side holder portion 3 is held at its upper end position, and good body holding performance of the seated person is ensured.

As explained above, the side holder part 3 on the getting on/off side goes up and down as the door opens and closes, so when getting on and off, the side holder part 3 lowers to ensure good getting on and off, and when seating, the side holder part 3 on the side Since the holder part 3 rises and is held at the upper end position,
Good body holding properties can be obtained.

In addition, since the side holder portion 3 is configured to be raised and lowered by the link mechanism L, there is no need to provide a certain gap between the seat and the door unlike in the conventional lifting mechanism. It is also possible to equip it.

In addition, although the elevating mechanism illustrated above is illustrated by providing a switching circuit and interlocking with the opening and closing of the door,
The vehicle is not limited to this, and may be configured to be able to be raised and lowered independently of opening and closing of the door. For example, the vehicle may be raised and lowered by the occupant's operation when going up and down.

Furthermore, as shown in FIG.
By configuring a circuit in series with the switch 26, it is also possible to configure the side holder portion 3 to rise when the occupant is seated and the speed of the vehicle reaches a constant value.

In addition, the side holder parts 5 and 6 of the seat bag 2
It is also possible to configure a moving mechanism in this case and link it to the illustrated side holder part lifting/lowering mechanism.

Regarding the side holder part 6 on the indoor side,
As in the case of seat cushions, it is not necessarily necessary to provide moving mechanisms in parallel.

As shown in FIGS. 1 and 3, this moving mechanism is configured so that the side holder portion 5 can be rotated in the front and rear directions around a hinge portion provided on the upper side of the seat bag 2. As shown in FIGS.

The hinge portion consists of a hinge pin 31 provided on the side holder portion 5 and a corresponding fitting hole 32 provided on the seat back 2 side. A slide piece 33 is attached to the lower part of the side holder portion 5, and is slidably engaged with a corresponding slide guide 34 provided on the seat back 2 side. A reverse end limit switch 27 and a forward end limit switch 28 are attached near both ends of the slide guide 34. Hinge pin 31
The hinge pin 3 is inserted between the slide guide 33 and the slide guide 33.
An arcuate rack 35 centered at 1 is attached. On the other hand, a drive motor 37 is installed on the side of the seat bag 2, and a pinion gear 36 is attached to the rotating shaft of this drive motor 37. This pinion gear 36 is meshed and connected to the rack 35.

Further, the above-mentioned switching circuit is used as the control means for controlling this moving mechanism.

By configuring the moving mechanism in this way, it becomes possible to move the side holder portion 5 in conjunction with the elevation and descent of the side holder portion 3 of the seat cushion, thereby achieving even better ease of getting on and off and body holding. be able to.

[Effect of idea]

The present invention is constructed as described above, and when getting on and off, the side holder part is lowered, and when sitting on the seat, the same side holder part is raised and held at the upper end position, so that the ease of getting on and off the seat and the ability to hold the body are improved. It is possible to achieve both.

In addition, since this side holder part is configured to move vertically using a link mechanism consisting of four-bar links, there is no need for a certain gap between the seat and the door as in the past, and the width of the interior can be adjusted. It can be installed even in cars with limited space, and has the effect of widening the scope of application of this elevating mechanism.

[Brief explanation of drawings]

FIG. 1 is a partially exploded perspective view of a seat equipped with the lifting device of this embodiment, FIG. 2 is an enlarged view taken in the direction of arrow A in FIG. 1, FIG. 5 and 5 are switching circuit diagrams, and FIG. 6 is a switching circuit diagram of another embodiment. L... Link mechanism, 1... Main seating part, 2... Seat back, 3, 4, 5, 6... Side holder part, 9, 10, 11, 12... Link member, 10
a... Sector gear, 13... Insert box,
15, 37... Drive motor.

Claims (1)

[Scope of utility model registration request] In a seat cushion for an automobile seat, a side holder part on the passenger side, which is provided separately from the main seating part, is vertically movably supported on the main seating part via a link mechanism, and the link mechanism is connected to the main seating part. Upper and lower link members are respectively arranged between the front and rear brackets arranged opposite to each other on the seating part side and the front and rear end surfaces of the insert box installed inside the side holder part to form a four-bar link, so that the front and rear parts are compatible. A mechanism for raising and lowering a side holder portion of an automobile seat, in which two link members are connected via a connecting rod, and one link member of the connecting rod is vertically rotatable by a predetermined driving means.