JPH07358Y2 - Seat equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION "Industrial field of application" The present invention is mounted in front of an upright wall, and can be folded from a use state to a stored state along the upright wall. The present invention relates to a seat device for a plurality of people having a sub seating position.

"Prior Art" As a conventional seat device, for example, there is one as shown in FIG.

That is, the seat 1 is a two-seater seat for a passenger seat that is mounted in front of a standing wall of a cabin of a truck or a cab-over vehicle, and a cushion 2 is a hinge mechanism 3 for inspecting an engine under the floor. The seat back 4 can be flipped up by pivoting upward about a pivot shaft 3a, and the seat back 4 has a lower end pivotally attached to an intermediate portion of a hinge arm of the hinge mechanism 3 so that the seat back 4 is displaced in conjunction with the cushion 2. Has become.

The upper portion of the seat back 4 is supported by the support link mechanism 5. The link arm 5a of the support link mechanism 5 is pivotally attached to the side surface of the seat back 4.

[Problems to be solved by the invention] However, in such a conventional technique, the link arm of the support link mechanism 5 that supports the upper portion of the seatback 4 is used.
Since the 5a is simply pivoted to the side surface of the seat back 4, the support link mechanism 5 can be seen well from the front, which is a problem in terms of appearance quality. In the conventional example, since the support link mechanism 5 is provided at the side end of the seat back 4, it is acceptable to some extent, but it is possible to divide the backrest into two parts so that the divided parts can be moved or removed. It has been proposed, and in that case, it is necessary to provide the support link mechanism 5 in the intermediate portion of the seat back 4, and there is a problem in that the design is unacceptable.

The present invention has been made by paying attention to such conventional problems, and solves the above problems by enabling the link mechanism supporting the upper part of the backrest to be mounted so as not to be seen from the front. The purpose is to provide a seating device.

[Means for Solving the Problem] The gist of the present invention for achieving such an object is that it is mounted in front of an elevation wall and can be folded from a use state to a storage state along the elevation wall. In a seating device for a plurality of people having a main seating position and a sub seating position, a cushion pivots a rear end on the elevation wall and causes a front portion to be arranged along the elevation wall. The seat back is provided with a detachable removable back body at an upper portion of a portion corresponding to the sub seating position, and a sub back lower body below the detachable back body and a main back body corresponding to the main seating position. Is formed in a substantially integrated seat back body, a lower end portion of the seat back body is pivotally attached to a rear end portion of the cushion, and a support link mechanism having a link arm capable of vertically swinging an upper portion of the main back body. Through the elevation And a concave portion that is recessed inward from the side surface behind the backrest surface portion of the upper portion of the main back body is provided, and the tip end of the link arm of the support link mechanism is provided on the pivot pin protruding in the concave portion. The seat device is characterized in that it is concealed by the backrest surface and pivotally attached.

"Operation" When the seat is installed in front of the elevation wall, the cushion is supported substantially horizontally and the seat back is diagonally raised upward from the rear end of the cushion and is held in a seatable state. Therefore, it can be used by sitting in a normal sitting posture.

In the seat back, a lower end portion of a seat back main body including a main back body and a sub back lower body is pivotally attached to a cushion, and an upper portion of the main back body is supported by an elevation wall by a support link mechanism and held stationary. ing.

When the seat back is viewed from the front, the recess formed on the side of the main back body cannot be seen behind the backrest surface, and the pivot pin in the recess and the link arm of the support link mechanism are also hidden by the backrest surface. It doesn't look like a car, and the appearance is good and the interior of the car has a good feel.

The removable back body is adjacent to the upper part of the main back body in a mounted state. The link arm of the support link mechanism that supports the side portion of the main back body on the removable back body side is housed in the recess, and is not visible from the front, and there is no need to provide a gap between the removable back body and the main back body. Can be closely attached.

In order to inspect the underfloor, when the front end of the cushion is pulled upward, it rotates around the rear end and is flipped up to a position along the elevation wall.

The seat back is lifted as the sub-back lower body and the main back body are lifted as the rear end of the main body rises when the cushion is flipped up. The state along the elevation wall is maintained as described above so as to overlap the seat back.

When the inspection is over and the cushion is replaced, the seat back also returns to its original position.

The detachable back body can be detached and used as a pillow or the like regardless of the state of use of the seat, and when worn, it can lean against the body as a part of the seat back.

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

1 and 2 show an embodiment of the present invention.

The seat 10 is seated by a plurality of people in front of the elevation wall W, and has a main seating position A and a sub seating position B. It can be folded from the horizontal use state to the storage state along the upright wall W. The elevation wall W is the rear wall of the cabin in the case of a truck.

The cushion 11 has a hinge 15 provided at the rear end thereof so that the elevation wall W
Is pivotally attached to the front wall 12 and is arranged along the elevation wall W when the front portion 12 is raised.

The hinge 15 includes a hinge arm 16 fixed to a rear end of a cushion frame installed in the cushion 11, and a hinge bracket 17 pivotally attached to the end of the hinge arm 16 via a hinge pin 16a. Is fixed to the elevation wall W.

The seat back 20 includes a detachable removable back body 21 provided above the portion corresponding to the sub seating position B, a portion corresponding to the main seating position A, and a portion corresponding to the lower part of the sub seating position B. A substantially integrated seat back body
Consisting of 25.

The portion below the removable back body 21 and corresponding to the lower portion of the sub seating position B is the sub back lower body 26, and the portion corresponding to the main seating position is the main back body 30.

The main back body 30 is a frame-shaped back frame inside the exterior cover 31.
A sub-frame 36, which is formed by internally mounting 35, is installed in the sub-back lower body 26 and extends laterally from the back frame 35.

Both sides of the lower end portion of the seat back body 25 are pivotally attached to the intermediate portions of the hinge arms 16 of the hinges 15 on both sides forming the rear end portion of the cushion 11 via connecting pins 28. The connecting pins 28 are provided on both sides of the lower end of the back frame 35 so as to project.

An upper portion of the main back body 30 is coupled and supported to the upright wall W via a support link mechanism 40 so that the main back body 30 can be displaced when the cushion 11 is raised.

The support link mechanism 40 includes a link arm 41 that can swing up and down.
And a mounting bracket 42 pivotally attached to the base end of the support link mechanism 40 via a pivot pin 41a. The mounting bracket 42 is fixed to the upright wall W.

Recesses 38a, 38b are formed on both sides of the upper portion of the main back body 30 and are recessed inward from the side surfaces 37a, 37b. Recesses 38a, 38b
Leaves the side part of the backrest surface part 32, and the side surfaces 37a, 37
Inward from b.

A pivot pin 39 having a base fixed to the back frame 35 is provided in the recess 38 so as to project therefrom. A tip end of a link arm 41 of a support link mechanism 40 is pivotally attached to the pivot pin 39, and the link arm 41 is hidden by a backrest surface portion 32 so as not to be seen from the front.

Next, the operation will be described.

In the use state of the seat 10 mounted in front of the standing wall W, the cushion 11 is supported substantially horizontally, and the seat back 20 rises obliquely rearward and upward from the rear end of the cushion 11 and is held in a seatable state. Therefore, it is possible to sit down and use it in a normal sitting posture.

The seat back 20 is a main back body 30 and a sub-back lower body.
The lower end of the seat back body 25, which is composed of 26, is a cushion.
Connecting pin 28 to hinge arm 16 of hinge 15 that is part of 11
Both sides of the upper portion of the main back body 30 are supported by the elevation wall W by the support link mechanisms 40, 40 and are held stationary.

When the seat back 20 is viewed from the front, the recesses 38a, 38b formed on the side portions of the main back body 30 are hidden behind the backrest surface portion 32 and are not visible, and the pivot pin 39 and the support link mechanism in the recesses 38a, 38b are not visible. The link arm 41 of the 40 is also hidden because it is hidden by the backrest surface portion 32.

The detachable back body 21 is adjacent to the upper portion of the main back body 30 in a mounted state. The support link mechanism 40 that supports the side portion of the main back body 30 on the side of the removable back body 21 is housed in the recess 38b and cannot be seen from the front.
Is in close contact with.

In order to check the underfloor, when the front end 12 of the cushion 11 is pulled upward, the rear end rotates about the hinge pin 16a of the hinge 15 and can be flipped up to a position along the standing wall W.

The seat back 20a includes a lower back body 26 and a main back body 30.
Is the hinge arm at the rear end when the cushion 11 is flipped up.
16 is lifted as the connecting pin 28 rises when it swings upward.

Link arm of the support link mechanism 40 above the main back body 30
41 swings upward, and the cushion 11 overlaps the seat back 20 and holds the state along the standing wall W.

When the inspection is over and the cushion 11 is replaced, the seat back
20 also returns to the original position.

The detachable back body (21) can be removed and used as a pillow or the like regardless of the use state of the seat (10), and when worn, it can lean against the body as a part of the seat back (20).

In addition, in the above-mentioned embodiment, the erect wall is described as the rear wall of the cabin of the truck, but in a one-box car or the like, a crosspiece that supports the upper part of the seat back is provided after the driver's seat to substantially form the wall. Needless to say, the ones that have been made are also acceptable.

[Advantage of Invention] According to the seat device of the present invention, the tip of the link arm of the support link mechanism that supports the upper portion of the seat back is placed in the recess and concealed so that it cannot be seen from the front, so it is hidden on the backrest surface. As a result, the link arm cannot be seen, the appearance is good and the feeling of the vehicle interior is good, which in turn improves the habitability of the vehicle interior.

Since the removable back body can be brought into close contact with the main back body, there is no gap and the appearance is good, and the removable back body does not interfere with the support link mechanism.

[Brief description of drawings]

1 and 2 show an embodiment of the present invention,
FIG. 1 is a perspective view of a seat device, FIG. 2 is a front view in which a part of a main back body is cut away, and FIG. 3 is a perspective view of a seat device according to a conventional example. W: Elevation wall A: Main seating position B: Secondary seating position 10: Seat 11: Cushion 15: Hinge 16: Hinge arm 20: Seat back 21: Attachment / removal back body 25: Seat Back body 26 …… Sub-back lower body 28 …… Connecting pin 30 …… Main back body 31 …… Exterior cover 32 …… Backrest surface 35 …… Back frame 37a, 37b …… Side 38a, 38b …… Recess 39… … Axis pin 40 …… Support link mechanism 41 …… Link arm 42 …… Mounting bracket

Claims (1)

[Scope of utility model registration request] 1. A seating device for a plurality of people, which is mounted in front of an elevation wall, is foldable from a use state to a storage state along the elevation wall, and has a main seating position and a sub seating position. A cushion pivotally attaches a rear end to the elevation wall and provokes a front portion so as to be arranged along the elevation wall, and a seat back is removable on an upper portion of a portion corresponding to a secondary seating position While the removable back body is provided, the sub back lower body below the removable back body and the main back body corresponding to the main seating position are formed in a substantially integrated seat back body, and the seat is provided at the rear end of the cushion. The lower end of the back body is pivotally attached, and the upper portion of the main back body is connected and supported to the upright wall through a support link mechanism having a vertically swingable link arm. Behind the leaning surface, inward from the side A seat device, comprising: a recessed portion that is recessed; and a tip of a link arm of the support link mechanism is concealed by a backrest surface portion and pivotally attached to a pivot pin that is provided in the recessed portion.